diff --git a/chat.db b/chat.db
new file mode 100644
index 0000000..bf414a9
Binary files /dev/null and b/chat.db differ
diff --git a/index.html b/index.html
index 444043d..9098b6c 100644
--- a/index.html
+++ b/index.html
@@ -21,26 +21,38 @@
     <form id="form" action="">
       <input id="input" autocomplete="off" /><button>Send</button>
     </form>
-	<script src="/socket.io/socket.io.js"></script>
-	<script>
-	  const socket = io();
-	  const form = document.getElementById('form');
-	  const input = document.getElementById('input');
-	  const messages = document.getElementById('messages');
-
-	  form.addEventListener('submit', (e) => {
-		e.preventDefault();
-		if (input.value) {
-		  socket.emit('chat message', input.value);
-		  input.value = '';
-		}
-	  });
-	  socket.on('chat message', (msg) => {
-		const item = document.createElement('li');
-		item.textContent = msg;
-		messages.appendChild(item);
-		window.scrollTo(0, document.body.scrollHeight);
-	  });
-	</script>
+    <script src="/socket.io/socket.io.js"></script>
+    <script>
+      let counter = 0;
+  
+      const socket = io({
+        ackTimeout: 10000,
+        retries: 3,
+        auth: {
+          serverOffset: 0
+        }
+      });
+  
+      const form = document.getElementById('form');
+      const input = document.getElementById('input');
+      const messages = document.getElementById('messages');
+  
+      form.addEventListener('submit', (e) => {
+        e.preventDefault();
+        if (input.value) {
+          const clientOffset = `${socket.id}-${counter++}`;
+          socket.emit('chat message', input.value, clientOffset);
+          input.value = '';
+        }
+      });
+  
+      socket.on('chat message', (msg, serverOffset) => {
+        const item = document.createElement('li');
+        item.textContent = msg;
+        messages.appendChild(item);
+        window.scrollTo(0, document.body.scrollHeight);
+        socket.auth.serverOffset = serverOffset;
+      });
+    </script>
   </body>
 </html>
\ No newline at end of file
diff --git a/index.js b/index.js
index cf18681..861d588 100644
--- a/index.js
+++ b/index.js
@@ -2,26 +2,84 @@ const express = require('express');
 const { createServer } = require('node:http');
 const { join } = require('node:path');
 const { Server } = require('socket.io');
+const sqlite3 = require('sqlite3');
+const { open } = require('sqlite');
+const { availableParallelism } = require('node:os');
+const cluster = require('node:cluster');
+const { createAdapter, setupPrimary } = require('@socket.io/cluster-adapter');
 
-const app = express();
-const server = createServer(app);
-const io = new Server(server);
+if (cluster.isPrimary) {
+  const numCPUs = availableParallelism();
+  for (let i = 0; i < numCPUs; i++) {
+    cluster.fork({
+      PORT: 3000 + i
+    });
+  }
 
-app.get('/', (req, res) => {
-  res.sendFile(join(__dirname, 'index.html'));
-});
+  return setupPrimary();
+}
 
-io.on('connection', (socket) => {
-  console.log('a user connected');
-  socket.on('chat message', (msg) => {
-    io.emit('chat message', msg);
-	console.log('message: ' + msg);
+async function main() {
+  const db = await open({
+    filename: 'chat.db',
+    driver: sqlite3.Database
   });
-  socket.on('disconnect', () => {
-    console.log('user disconnected');
-  });
-});
 
-server.listen(3000, () => {
-  console.log('server running at http://localhost:3000');
-});
\ No newline at end of file
+  await db.exec(`
+    CREATE TABLE IF NOT EXISTS messages (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      client_offset TEXT UNIQUE,
+      content TEXT
+    );
+  `);
+
+  const app = express();
+  const server = createServer(app);
+  const io = new Server(server, {
+    connectionStateRecovery: {},
+    adapter: createAdapter()
+  });
+
+  app.get('/', (req, res) => {
+    res.sendFile(join(__dirname, 'index.html'));
+  });
+
+  io.on('connection', async (socket) => {
+    socket.on('chat message', async (msg, clientOffset, callback) => {
+      let result;
+      try {
+        result = await db.run('INSERT INTO messages (content, client_offset) VALUES (?, ?)', msg, clientOffset);
+      } catch (e) {
+        if (e.errno === 19 /* SQLITE_CONSTRAINT */ ) {
+          callback();
+        } else {
+          // nothing to do, just let the client retry
+        }
+        return;
+      }
+      io.emit('chat message', msg, result.lastID);
+      callback();
+    });
+
+    if (!socket.recovered) {
+      try {
+        await db.each('SELECT id, content FROM messages WHERE id > ?',
+          [socket.handshake.auth.serverOffset || 0],
+          (_err, row) => {
+            socket.emit('chat message', row.content, row.id);
+          }
+        )
+      } catch (e) {
+        // something went wrong
+      }
+    }
+  });
+
+  const port = process.env.PORT;
+
+  server.listen(port, () => {
+    console.log(`server running at http://localhost:${port}`);
+  });
+}
+
+main();
\ No newline at end of file
diff --git a/node_modules/.bin/color-support b/node_modules/.bin/color-support
new file mode 100644
index 0000000..59e6506
--- /dev/null
+++ b/node_modules/.bin/color-support
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../color-support/bin.js" "$@"
+else 
+  exec node  "$basedir/../color-support/bin.js" "$@"
+fi
diff --git a/node_modules/.bin/color-support.cmd b/node_modules/.bin/color-support.cmd
new file mode 100644
index 0000000..005f9a5
--- /dev/null
+++ b/node_modules/.bin/color-support.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\color-support\bin.js" %*
diff --git a/node_modules/.bin/color-support.ps1 b/node_modules/.bin/color-support.ps1
new file mode 100644
index 0000000..f5c9fe4
--- /dev/null
+++ b/node_modules/.bin/color-support.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../color-support/bin.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../color-support/bin.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../color-support/bin.js" $args
+  } else {
+    & "node$exe"  "$basedir/../color-support/bin.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/node_modules/.bin/mkdirp b/node_modules/.bin/mkdirp
new file mode 100644
index 0000000..6ba5765
--- /dev/null
+++ b/node_modules/.bin/mkdirp
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../mkdirp/bin/cmd.js" "$@"
+else 
+  exec node  "$basedir/../mkdirp/bin/cmd.js" "$@"
+fi
diff --git a/node_modules/.bin/mkdirp.cmd b/node_modules/.bin/mkdirp.cmd
new file mode 100644
index 0000000..a865dd9
--- /dev/null
+++ b/node_modules/.bin/mkdirp.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\mkdirp\bin\cmd.js" %*
diff --git a/node_modules/.bin/mkdirp.ps1 b/node_modules/.bin/mkdirp.ps1
new file mode 100644
index 0000000..911e854
--- /dev/null
+++ b/node_modules/.bin/mkdirp.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../mkdirp/bin/cmd.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../mkdirp/bin/cmd.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../mkdirp/bin/cmd.js" $args
+  } else {
+    & "node$exe"  "$basedir/../mkdirp/bin/cmd.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/node_modules/.bin/node-gyp b/node_modules/.bin/node-gyp
new file mode 100644
index 0000000..b80888c
--- /dev/null
+++ b/node_modules/.bin/node-gyp
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../node-gyp/bin/node-gyp.js" "$@"
+else 
+  exec node  "$basedir/../node-gyp/bin/node-gyp.js" "$@"
+fi
diff --git a/node_modules/.bin/node-gyp.cmd b/node_modules/.bin/node-gyp.cmd
new file mode 100644
index 0000000..9a6a721
--- /dev/null
+++ b/node_modules/.bin/node-gyp.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\node-gyp\bin\node-gyp.js" %*
diff --git a/node_modules/.bin/node-gyp.ps1 b/node_modules/.bin/node-gyp.ps1
new file mode 100644
index 0000000..dd514e2
--- /dev/null
+++ b/node_modules/.bin/node-gyp.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../node-gyp/bin/node-gyp.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../node-gyp/bin/node-gyp.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../node-gyp/bin/node-gyp.js" $args
+  } else {
+    & "node$exe"  "$basedir/../node-gyp/bin/node-gyp.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/node_modules/.bin/node-pre-gyp b/node_modules/.bin/node-pre-gyp
new file mode 100644
index 0000000..004c3be
--- /dev/null
+++ b/node_modules/.bin/node-pre-gyp
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../@mapbox/node-pre-gyp/bin/node-pre-gyp" "$@"
+else 
+  exec node  "$basedir/../@mapbox/node-pre-gyp/bin/node-pre-gyp" "$@"
+fi
diff --git a/node_modules/.bin/node-pre-gyp.cmd b/node_modules/.bin/node-pre-gyp.cmd
new file mode 100644
index 0000000..a2fc508
--- /dev/null
+++ b/node_modules/.bin/node-pre-gyp.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\@mapbox\node-pre-gyp\bin\node-pre-gyp" %*
diff --git a/node_modules/.bin/node-pre-gyp.ps1 b/node_modules/.bin/node-pre-gyp.ps1
new file mode 100644
index 0000000..ed297ff
--- /dev/null
+++ b/node_modules/.bin/node-pre-gyp.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../@mapbox/node-pre-gyp/bin/node-pre-gyp" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../@mapbox/node-pre-gyp/bin/node-pre-gyp" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../@mapbox/node-pre-gyp/bin/node-pre-gyp" $args
+  } else {
+    & "node$exe"  "$basedir/../@mapbox/node-pre-gyp/bin/node-pre-gyp" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/node_modules/.bin/node-which b/node_modules/.bin/node-which
new file mode 100644
index 0000000..aece735
--- /dev/null
+++ b/node_modules/.bin/node-which
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../which/bin/node-which" "$@"
+else 
+  exec node  "$basedir/../which/bin/node-which" "$@"
+fi
diff --git a/node_modules/.bin/node-which.cmd b/node_modules/.bin/node-which.cmd
new file mode 100644
index 0000000..8738aed
--- /dev/null
+++ b/node_modules/.bin/node-which.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\which\bin\node-which" %*
diff --git a/node_modules/.bin/node-which.ps1 b/node_modules/.bin/node-which.ps1
new file mode 100644
index 0000000..cfb09e8
--- /dev/null
+++ b/node_modules/.bin/node-which.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../which/bin/node-which" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../which/bin/node-which" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../which/bin/node-which" $args
+  } else {
+    & "node$exe"  "$basedir/../which/bin/node-which" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/node_modules/.bin/nopt b/node_modules/.bin/nopt
new file mode 100644
index 0000000..f1ec43b
--- /dev/null
+++ b/node_modules/.bin/nopt
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../nopt/bin/nopt.js" "$@"
+else 
+  exec node  "$basedir/../nopt/bin/nopt.js" "$@"
+fi
diff --git a/node_modules/.bin/nopt.cmd b/node_modules/.bin/nopt.cmd
new file mode 100644
index 0000000..a7f38b3
--- /dev/null
+++ b/node_modules/.bin/nopt.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\nopt\bin\nopt.js" %*
diff --git a/node_modules/.bin/nopt.ps1 b/node_modules/.bin/nopt.ps1
new file mode 100644
index 0000000..9d6ba56
--- /dev/null
+++ b/node_modules/.bin/nopt.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../nopt/bin/nopt.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../nopt/bin/nopt.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../nopt/bin/nopt.js" $args
+  } else {
+    & "node$exe"  "$basedir/../nopt/bin/nopt.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/node_modules/.bin/rimraf b/node_modules/.bin/rimraf
new file mode 100644
index 0000000..b816825
--- /dev/null
+++ b/node_modules/.bin/rimraf
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../rimraf/bin.js" "$@"
+else 
+  exec node  "$basedir/../rimraf/bin.js" "$@"
+fi
diff --git a/node_modules/.bin/rimraf.cmd b/node_modules/.bin/rimraf.cmd
new file mode 100644
index 0000000..13f45ec
--- /dev/null
+++ b/node_modules/.bin/rimraf.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\rimraf\bin.js" %*
diff --git a/node_modules/.bin/rimraf.ps1 b/node_modules/.bin/rimraf.ps1
new file mode 100644
index 0000000..1716791
--- /dev/null
+++ b/node_modules/.bin/rimraf.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../rimraf/bin.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../rimraf/bin.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../rimraf/bin.js" $args
+  } else {
+    & "node$exe"  "$basedir/../rimraf/bin.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/node_modules/.bin/semver b/node_modules/.bin/semver
new file mode 100644
index 0000000..77443e7
--- /dev/null
+++ b/node_modules/.bin/semver
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../semver/bin/semver.js" "$@"
+else 
+  exec node  "$basedir/../semver/bin/semver.js" "$@"
+fi
diff --git a/node_modules/.bin/semver.cmd b/node_modules/.bin/semver.cmd
new file mode 100644
index 0000000..9913fa9
--- /dev/null
+++ b/node_modules/.bin/semver.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\semver\bin\semver.js" %*
diff --git a/node_modules/.bin/semver.ps1 b/node_modules/.bin/semver.ps1
new file mode 100644
index 0000000..314717a
--- /dev/null
+++ b/node_modules/.bin/semver.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../semver/bin/semver.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../semver/bin/semver.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../semver/bin/semver.js" $args
+  } else {
+    & "node$exe"  "$basedir/../semver/bin/semver.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/node_modules/.package-lock.json b/node_modules/.package-lock.json
index e9cfc1f..9c3aaf8 100644
--- a/node_modules/.package-lock.json
+++ b/node_modules/.package-lock.json
@@ -4,11 +4,83 @@
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
+    "node_modules/@gar/promisify": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/@gar/promisify/-/promisify-1.1.3.tgz",
+      "integrity": "sha512-k2Ty1JcVojjJFwrg/ThKi2ujJ7XNLYaFGNB/bWT9wGR+oSMJHMa5w+CUq6p/pVrKeNNgA7pCqEcjSnHVoqJQFw==",
+      "optional": true
+    },
+    "node_modules/@mapbox/node-pre-gyp": {
+      "version": "1.0.11",
+      "resolved": "https://registry.npmjs.org/@mapbox/node-pre-gyp/-/node-pre-gyp-1.0.11.tgz",
+      "integrity": "sha512-Yhlar6v9WQgUp/He7BdgzOz8lqMQ8sU+jkCq7Wx8Myc5YFJLbEe7lgui/V7G1qB1DJykHSGwreceSaD60Y0PUQ==",
+      "dependencies": {
+        "detect-libc": "^2.0.0",
+        "https-proxy-agent": "^5.0.0",
+        "make-dir": "^3.1.0",
+        "node-fetch": "^2.6.7",
+        "nopt": "^5.0.0",
+        "npmlog": "^5.0.1",
+        "rimraf": "^3.0.2",
+        "semver": "^7.3.5",
+        "tar": "^6.1.11"
+      },
+      "bin": {
+        "node-pre-gyp": "bin/node-pre-gyp"
+      }
+    },
+    "node_modules/@npmcli/fs": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@npmcli/fs/-/fs-1.1.1.tgz",
+      "integrity": "sha512-8KG5RD0GVP4ydEzRn/I4BNDuxDtqVbOdm8675T49OIG/NGhaK0pjPX7ZcDlvKYbA+ulvVK3ztfcF4uBdOxuJbQ==",
+      "optional": true,
+      "dependencies": {
+        "@gar/promisify": "^1.0.1",
+        "semver": "^7.3.5"
+      }
+    },
+    "node_modules/@npmcli/move-file": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@npmcli/move-file/-/move-file-1.1.2.tgz",
+      "integrity": "sha512-1SUf/Cg2GzGDyaf15aR9St9TWlb+XvbZXWpDx8YKs7MLzMH/BCeopv+y9vzrzgkfykCGuWOlSu3mZhj2+FQcrg==",
+      "deprecated": "This functionality has been moved to @npmcli/fs",
+      "optional": true,
+      "dependencies": {
+        "mkdirp": "^1.0.4",
+        "rimraf": "^3.0.2"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/@socket.io/cluster-adapter": {
+      "version": "0.2.2",
+      "resolved": "https://registry.npmjs.org/@socket.io/cluster-adapter/-/cluster-adapter-0.2.2.tgz",
+      "integrity": "sha512-/tNcY6qQx0BOgjl4mFk3YxX6pjaPdEyeWhP88Ea9gTlISY4SfA7t8VxbryeAs5/9QgXzChlvSN/i37Gog3kWag==",
+      "dependencies": {
+        "debug": "~4.3.1"
+      },
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "socket.io-adapter": "^2.4.0"
+      }
+    },
     "node_modules/@socket.io/component-emitter": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/@socket.io/component-emitter/-/component-emitter-3.1.0.tgz",
       "integrity": "sha512-+9jVqKhRSpsc591z5vX+X5Yyw+he/HCB4iQ/RYxw35CEPaY1gnsNE43nf9n9AaYjAQrTiI/mOwKUKdUs9vf7Xg=="
     },
+    "node_modules/@tootallnate/once": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@tootallnate/once/-/once-1.1.2.tgz",
+      "integrity": "sha512-RbzJvlNzmRq5c3O09UipeuXno4tA1FE6ikOjxZK0tuxVv3412l64l5t1W5pj4+rJq9vpkm/kwiR07aZXnsKPxw==",
+      "optional": true,
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/@types/cookie": {
       "version": "0.4.1",
       "resolved": "https://registry.npmjs.org/@types/cookie/-/cookie-0.4.1.tgz",
@@ -30,6 +102,11 @@
         "undici-types": "~5.25.1"
       }
     },
+    "node_modules/abbrev": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
+      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q=="
+    },
     "node_modules/accepts": {
       "version": "1.3.8",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
@@ -42,11 +119,77 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/agent-base": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz",
+      "integrity": "sha512-RZNwNclF7+MS/8bDg70amg32dyeZGZxiDuQmZxKLAlQjr3jGyLx+4Kkk58UO7D2QdgFIQCovuSuZESne6RG6XQ==",
+      "dependencies": {
+        "debug": "4"
+      },
+      "engines": {
+        "node": ">= 6.0.0"
+      }
+    },
+    "node_modules/agentkeepalive": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/agentkeepalive/-/agentkeepalive-4.5.0.tgz",
+      "integrity": "sha512-5GG/5IbQQpC9FpkRGsSvZI5QYeSCzlJHdpBQntCsuTOxhKD8lqKhrleg2Yi7yvMIf82Ycmmqln9U8V9qwEiJew==",
+      "optional": true,
+      "dependencies": {
+        "humanize-ms": "^1.2.1"
+      },
+      "engines": {
+        "node": ">= 8.0.0"
+      }
+    },
+    "node_modules/aggregate-error": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/aggregate-error/-/aggregate-error-3.1.0.tgz",
+      "integrity": "sha512-4I7Td01quW/RpocfNayFdFVk1qSuoh0E7JrbRJ16nH01HhKFQ88INq9Sd+nd72zqRySlr9BmDA8xlEJ6vJMrYA==",
+      "optional": true,
+      "dependencies": {
+        "clean-stack": "^2.0.0",
+        "indent-string": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/ansi-regex": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
+      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/aproba": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/aproba/-/aproba-2.0.0.tgz",
+      "integrity": "sha512-lYe4Gx7QT+MKGbDsA+Z+he/Wtef0BiwDOlK/XkBrdfsh9J/jPPXbX0tE9x9cl27Tmu5gg3QUbUrQYa/y+KOHPQ=="
+    },
+    "node_modules/are-we-there-yet": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-2.0.0.tgz",
+      "integrity": "sha512-Ci/qENmwHnsYo9xKIcUJN5LeDKdJ6R1Z1j9V/J5wyq8nh/mYPEpIKJbBZXtZjG04HiK7zV/p6Vs9952MrMeUIw==",
+      "dependencies": {
+        "delegates": "^1.0.0",
+        "readable-stream": "^3.6.0"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/array-flatten": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
       "integrity": "sha512-PCVAQswWemu6UdxsDFFX/+gVeYqKAod3D3UVm91jHwynguOwAvYPhx8nNlM++NqRcK6CxxpUafjmhIdKiHibqg=="
     },
+    "node_modules/balanced-match": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
+      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw=="
+    },
     "node_modules/base64id": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/base64id/-/base64id-2.0.0.tgz",
@@ -91,6 +234,15 @@
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
       "integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A=="
     },
+    "node_modules/brace-expansion": {
+      "version": "1.1.11",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "dependencies": {
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
+      }
+    },
     "node_modules/bytes": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
@@ -99,6 +251,35 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/cacache": {
+      "version": "15.3.0",
+      "resolved": "https://registry.npmjs.org/cacache/-/cacache-15.3.0.tgz",
+      "integrity": "sha512-VVdYzXEn+cnbXpFgWs5hTT7OScegHVmLhJIR8Ufqk3iFD6A6j5iSX1KuBTfNEv4tdJWE2PzA6IVFtcLC7fN9wQ==",
+      "optional": true,
+      "dependencies": {
+        "@npmcli/fs": "^1.0.0",
+        "@npmcli/move-file": "^1.0.1",
+        "chownr": "^2.0.0",
+        "fs-minipass": "^2.0.0",
+        "glob": "^7.1.4",
+        "infer-owner": "^1.0.4",
+        "lru-cache": "^6.0.0",
+        "minipass": "^3.1.1",
+        "minipass-collect": "^1.0.2",
+        "minipass-flush": "^1.0.5",
+        "minipass-pipeline": "^1.2.2",
+        "mkdirp": "^1.0.3",
+        "p-map": "^4.0.0",
+        "promise-inflight": "^1.0.1",
+        "rimraf": "^3.0.2",
+        "ssri": "^8.0.1",
+        "tar": "^6.0.2",
+        "unique-filename": "^1.1.1"
+      },
+      "engines": {
+        "node": ">= 10"
+      }
+    },
     "node_modules/call-bind": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.2.tgz",
@@ -111,6 +292,41 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/chownr": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/chownr/-/chownr-2.0.0.tgz",
+      "integrity": "sha512-bIomtDF5KGpdogkLd9VspvFzk9KfpyyGlS8YFVZl7TGPBHL5snIOnxeshwVgPteQ9b4Eydl+pVbIyE1DcvCWgQ==",
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/clean-stack": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/clean-stack/-/clean-stack-2.2.0.tgz",
+      "integrity": "sha512-4diC9HaTE+KRAMWhDhrGOECgWZxoevMc5TlkObMqNSsVU62PYzXZ/SMTjzyGAFF1YusgxGcSWTEXBhp0CPwQ1A==",
+      "optional": true,
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/color-support": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/color-support/-/color-support-1.1.3.tgz",
+      "integrity": "sha512-qiBjkpbMLO/HL68y+lh4q0/O1MZFj2RX6X/KmMa3+gJD3z+WwI1ZzDHysvqHGS3mP6mznPckpXmw1nI9cJjyRg==",
+      "bin": {
+        "color-support": "bin.js"
+      }
+    },
+    "node_modules/concat-map": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
+      "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg=="
+    },
+    "node_modules/console-control-strings": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
+      "integrity": "sha512-ty/fTekppD2fIwRvnZAVdeOiGd1c7YXEixbgJTNzqcxJWKQnjJ/V1bNEEE6hygpM3WjwHFUVK6HTjWSzV4a8sQ=="
+    },
     "node_modules/content-disposition": {
       "version": "0.5.4",
       "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.4.tgz",
@@ -171,6 +387,11 @@
         }
       }
     },
+    "node_modules/delegates": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
+      "integrity": "sha512-bd2L678uiWATM6m5Z1VzNCErI3jiGzt6HGY8OVICs40JQq/HALfbyNJmp0UDakEY4pMMaN0Ly5om/B1VI/+xfQ=="
+    },
     "node_modules/depd": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
@@ -188,11 +409,24 @@
         "npm": "1.2.8000 || >= 1.4.16"
       }
     },
+    "node_modules/detect-libc": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.0.2.tgz",
+      "integrity": "sha512-UX6sGumvvqSaXgdKGUsgZWqcUyIXZ/vZTrlRT/iobiKhGL0zL4d3osHj3uqllWJK+i+sixDS/3COVEOFbupFyw==",
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
       "integrity": "sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow=="
     },
+    "node_modules/emoji-regex": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
+      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A=="
+    },
     "node_modules/encodeurl": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
@@ -201,6 +435,27 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/encoding": {
+      "version": "0.1.13",
+      "resolved": "https://registry.npmjs.org/encoding/-/encoding-0.1.13.tgz",
+      "integrity": "sha512-ETBauow1T35Y/WZMkio9jiM0Z5xjHHmJ4XmjZOq1l/dXz3lr2sRn87nJy20RupqSh1F2m3HHPSp8ShIPQJrJ3A==",
+      "optional": true,
+      "dependencies": {
+        "iconv-lite": "^0.6.2"
+      }
+    },
+    "node_modules/encoding/node_modules/iconv-lite": {
+      "version": "0.6.3",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
+      "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
+      "optional": true,
+      "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/engine.io": {
       "version": "6.5.3",
       "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-6.5.3.tgz",
@@ -229,6 +484,21 @@
         "node": ">=10.0.0"
       }
     },
+    "node_modules/env-paths": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/env-paths/-/env-paths-2.2.1.tgz",
+      "integrity": "sha512-+h1lkLKhZMTYjog1VEpJNG7NZJWcuc2DDk/qsqSTRRCOXiLjeQ1d1/udrUGhqMxUgAlwKNZ0cf2uqan5GLuS2A==",
+      "optional": true,
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/err-code": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/err-code/-/err-code-2.0.3.tgz",
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+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+      "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ=="
+    },
+    "node_modules/whatwg-url": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
+      "integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==",
+      "dependencies": {
+        "tr46": "~0.0.3",
+        "webidl-conversions": "^3.0.0"
+      }
+    },
+    "node_modules/which": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+      "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
+      "optional": true,
+      "dependencies": {
+        "isexe": "^2.0.0"
+      },
+      "bin": {
+        "node-which": "bin/node-which"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    },
+    "node_modules/wide-align": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.5.tgz",
+      "integrity": "sha512-eDMORYaPNZ4sQIuuYPDHdQvf4gyCF9rEEV/yPxGfwPkRodwEgiMUUXTx/dex+Me0wxx53S+NgUHaP7y3MGlDmg==",
+      "dependencies": {
+        "string-width": "^1.0.2 || 2 || 3 || 4"
+      }
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
+    },
     "node_modules/ws": {
       "version": "8.11.0",
       "resolved": "https://registry.npmjs.org/ws/-/ws-8.11.0.tgz",
@@ -803,6 +1841,11 @@
           "optional": true
         }
       }
+    },
+    "node_modules/yallist": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
+      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A=="
     }
   }
 }
diff --git a/node_modules/@gar/promisify/LICENSE.md b/node_modules/@gar/promisify/LICENSE.md
new file mode 100644
index 0000000..64f7732
--- /dev/null
+++ b/node_modules/@gar/promisify/LICENSE.md
@@ -0,0 +1,10 @@
+The MIT License (MIT)
+
+Copyright © 2020-2022 Michael Garvin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/node_modules/@gar/promisify/README.md b/node_modules/@gar/promisify/README.md
new file mode 100644
index 0000000..465c546
--- /dev/null
+++ b/node_modules/@gar/promisify/README.md
@@ -0,0 +1,65 @@
+# @gar/promisify
+
+### Promisify an entire object or class instance
+
+This module leverages es6 Proxy and Reflect to promisify every function in an
+object or class instance.
+
+It assumes the callback that the function is expecting is the last
+parameter, and that it is an error-first callback with only one value,
+i.e. `(err, value) => ...`. This mirrors node's `util.promisify` method.
+
+In order that you can use it as a one-stop-shop for all your promisify
+needs, you can also pass it a function.  That function will be
+promisified as normal using node's built-in `util.promisify` method.
+
+[node's custom promisified
+functions](https://nodejs.org/api/util.html#util_custom_promisified_functions)
+will also be mirrored, further allowing this to be a drop-in replacement
+for the built-in `util.promisify`.
+
+### Examples
+
+Promisify an entire object
+
+```javascript
+
+const promisify = require('@gar/promisify')
+
+class Foo {
+  constructor (attr) {
+    this.attr = attr
+  }
+
+  double (input, cb) {
+    cb(null, input * 2)
+  }
+
+const foo = new Foo('baz')
+const promisified = promisify(foo)
+
+console.log(promisified.attr)
+console.log(await promisified.double(1024))
+```
+
+Promisify a function
+
+```javascript
+
+const promisify = require('@gar/promisify')
+
+function foo (a, cb) {
+  if (a !== 'bad') {
+    return cb(null, 'ok')
+  }
+  return cb('not ok')
+}
+
+const promisified = promisify(foo)
+
+// This will resolve to 'ok'
+promisified('good')
+
+// this will reject
+promisified('bad')
+```
diff --git a/node_modules/@gar/promisify/index.js b/node_modules/@gar/promisify/index.js
new file mode 100644
index 0000000..d0be95f
--- /dev/null
+++ b/node_modules/@gar/promisify/index.js
@@ -0,0 +1,36 @@
+'use strict'
+
+const { promisify } = require('util')
+
+const handler = {
+  get: function (target, prop, receiver) {
+    if (typeof target[prop] !== 'function') {
+      return target[prop]
+    }
+    if (target[prop][promisify.custom]) {
+      return function () {
+        return Reflect.get(target, prop, receiver)[promisify.custom].apply(target, arguments)
+      }
+    }
+    return function () {
+      return new Promise((resolve, reject) => {
+        Reflect.get(target, prop, receiver).apply(target, [...arguments, function (err, result) {
+          if (err) {
+            return reject(err)
+          }
+          resolve(result)
+        }])
+      })
+    }
+  }
+}
+
+module.exports = function (thingToPromisify) {
+  if (typeof thingToPromisify === 'function') {
+    return promisify(thingToPromisify)
+  }
+  if (typeof thingToPromisify === 'object') {
+    return new Proxy(thingToPromisify, handler)
+  }
+  throw new TypeError('Can only promisify functions or objects')
+}
diff --git a/node_modules/@gar/promisify/package.json b/node_modules/@gar/promisify/package.json
new file mode 100644
index 0000000..d0ce69b
--- /dev/null
+++ b/node_modules/@gar/promisify/package.json
@@ -0,0 +1,32 @@
+{
+  "name": "@gar/promisify",
+  "version": "1.1.3",
+  "description": "Promisify an entire class or object",
+  "main": "index.js",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/wraithgar/gar-promisify.git"
+  },
+  "scripts": {
+    "lint": "standard",
+    "lint:fix": "standard --fix",
+    "test": "lab -a @hapi/code -t 100",
+    "posttest": "npm run lint"
+  },
+  "files": [
+    "index.js"
+  ],
+  "keywords": [
+    "promisify",
+    "all",
+    "class",
+    "object"
+  ],
+  "author": "Gar <gar+npm@danger.computer>",
+  "license": "MIT",
+  "devDependencies": {
+    "@hapi/code": "^8.0.1",
+    "@hapi/lab": "^24.1.0",
+    "standard": "^16.0.3"
+  }
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/.github/workflows/codeql.yml b/node_modules/@mapbox/node-pre-gyp/.github/workflows/codeql.yml
new file mode 100644
index 0000000..70eaa56
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/.github/workflows/codeql.yml
@@ -0,0 +1,74 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ "master" ]
+  schedule:
+    - cron: '24 5 * * 4'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'javascript' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
+        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v2
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+
+        # Details on CodeQL's query packs refer to : https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+        # queries: security-extended,security-and-quality
+
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, Go, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v2
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+    #   If the Autobuild fails above, remove it and uncomment the following three lines.
+    #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+    # - run: |
+    #   echo "Run, Build Application using script"
+    #   ./location_of_script_within_repo/buildscript.sh
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v2
+      with:
+        category: "/language:${{matrix.language}}"
diff --git a/node_modules/@mapbox/node-pre-gyp/CHANGELOG.md b/node_modules/@mapbox/node-pre-gyp/CHANGELOG.md
new file mode 100644
index 0000000..990e929
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/CHANGELOG.md
@@ -0,0 +1,510 @@
+# node-pre-gyp changelog
+
+## 1.0.11
+- Fixes dependabot alert [CVE-2021-44906](https://nvd.nist.gov/vuln/detail/CVE-2021-44906)
+
+## 1.0.10
+- Upgraded minimist to 1.2.6 to address dependabot alert [CVE-2021-44906](https://nvd.nist.gov/vuln/detail/CVE-2021-44906)
+
+## 1.0.9
+- Upgraded node-fetch to 2.6.7 to address [CVE-2022-0235](https://www.cve.org/CVERecord?id=CVE-2022-0235)
+- Upgraded detect-libc to 2.0.0 to use non-blocking NodeJS(>=12) Report API
+
+## 1.0.8
+- Downgraded npmlog to maintain node v10 and v8 support (https://github.com/mapbox/node-pre-gyp/pull/624)
+
+## 1.0.7
+- Upgraded nyc and npmlog to address https://github.com/advisories/GHSA-93q8-gq69-wqmw
+
+## 1.0.6
+- Added node v17 to the internal node releases listing
+- Upgraded various dependencies declared in package.json to latest major versions (node-fetch from 2.6.1 to 2.6.5, npmlog from 4.1.2 to 5.01, semver from 7.3.4 to 7.3.5, and tar from 6.1.0 to 6.1.11)
+- Fixed bug in `staging_host` parameter (https://github.com/mapbox/node-pre-gyp/pull/590)
+
+
+## 1.0.5
+- Fix circular reference warning with node >= v14
+
+## 1.0.4
+- Added node v16 to the internal node releases listing
+
+## 1.0.3
+- Improved support configuring s3 uploads (solves https://github.com/mapbox/node-pre-gyp/issues/571)
+  - New options added in https://github.com/mapbox/node-pre-gyp/pull/576: 'bucket', 'region', and `s3ForcePathStyle`
+
+## 1.0.2
+- Fixed regression in proxy support (https://github.com/mapbox/node-pre-gyp/issues/572)
+
+## 1.0.1
+- Switched from mkdirp@1.0.4 to make-dir@3.1.0 to avoid this bug: https://github.com/isaacs/node-mkdirp/issues/31
+
+## 1.0.0
+- Module is now name-spaced at `@mapbox/node-pre-gyp` and the original `node-pre-gyp` is deprecated.
+- New: support for staging and production s3 targets (see README.md)
+- BREAKING: no longer supporting `node_pre_gyp_accessKeyId` & `node_pre_gyp_secretAccessKey`, use `AWS_ACCESS_KEY_ID` & `AWS_SECRET_ACCESS_KEY` instead to authenticate against s3 for `info`, `publish`, and `unpublish` commands.
+- Dropped node v6 support, added node v14 support
+- Switched tests to use mapbox-owned bucket for testing
+- Added coverage tracking and linting with eslint
+- Added back support for symlinks inside the tarball
+- Upgraded all test apps to N-API/node-addon-api
+- New: support for staging and production s3 targets (see README.md)
+- Added `node_pre_gyp_s3_host` env var which has priority over the `--s3_host` option or default.
+- Replaced needle with node-fetch
+- Added proxy support for node-fetch
+- Upgraded to mkdirp@1.x
+
+## 0.17.0
+- Got travis + appveyor green again
+- Added support for more node versions
+
+## 0.16.0
+
+- Added Node 15 support in the local database (https://github.com/mapbox/node-pre-gyp/pull/520)
+
+## 0.15.0
+
+- Bump dependency on `mkdirp` from `^0.5.1` to `^0.5.3` (https://github.com/mapbox/node-pre-gyp/pull/492)
+- Bump dependency on `needle` from `^2.2.1` to `^2.5.0` (https://github.com/mapbox/node-pre-gyp/pull/502)
+- Added Node 14 support in the local database (https://github.com/mapbox/node-pre-gyp/pull/501)
+
+## 0.14.0
+
+- Defer modules requires in napi.js (https://github.com/mapbox/node-pre-gyp/pull/434)
+- Bump dependency on `tar` from `^4` to `^4.4.2` (https://github.com/mapbox/node-pre-gyp/pull/454)
+- Support extracting compiled binary from local offline mirror (https://github.com/mapbox/node-pre-gyp/pull/459)
+- Added Node 13 support in the local database (https://github.com/mapbox/node-pre-gyp/pull/483)
+
+## 0.13.0
+
+- Added Node 12 support in the local database (https://github.com/mapbox/node-pre-gyp/pull/449)
+
+## 0.12.0
+
+- Fixed double-build problem with node v10 (https://github.com/mapbox/node-pre-gyp/pull/428)
+- Added node 11 support in the local database (https://github.com/mapbox/node-pre-gyp/pull/422)
+
+## 0.11.0
+
+- Fixed double-install problem with node v10
+- Significant N-API improvements (https://github.com/mapbox/node-pre-gyp/pull/405)
+
+## 0.10.3
+
+- Now will use `request` over `needle` if request is installed. By default `needle` is used for `https`. This should unbreak proxy support that regressed in v0.9.0
+
+## 0.10.2
+
+- Fixed rc/deep-extent security vulnerability
+- Fixed broken reinstall script do to incorrectly named get_best_napi_version
+
+## 0.10.1
+
+- Fix needle error event (@medns)
+
+## 0.10.0
+
+- Allow for a single-level module path when packing @allenluce (https://github.com/mapbox/node-pre-gyp/pull/371)
+- Log warnings instead of errors when falling back @xzyfer (https://github.com/mapbox/node-pre-gyp/pull/366)
+- Add Node.js v10 support to tests (https://github.com/mapbox/node-pre-gyp/pull/372)
+- Remove retire.js from CI (https://github.com/mapbox/node-pre-gyp/pull/372)
+- Remove support for Node.js v4 due to [EOL on April 30th, 2018](https://github.com/nodejs/Release/blob/7dd52354049cae99eed0e9fe01345b0722a86fde/schedule.json#L14)
+- Update appveyor tests to install default NPM version instead of NPM v2.x for all Windows builds (https://github.com/mapbox/node-pre-gyp/pull/375)
+
+## 0.9.1
+
+- Fixed regression (in v0.9.0) with support for http redirects @allenluce (https://github.com/mapbox/node-pre-gyp/pull/361)
+
+## 0.9.0
+
+- Switched from using `request` to `needle` to reduce size of module deps (https://github.com/mapbox/node-pre-gyp/pull/350)
+
+## 0.8.0
+
+- N-API support (@inspiredware)
+
+## 0.7.1
+
+- Upgraded to tar v4.x
+
+## 0.7.0
+
+ - Updated request and hawk (#347)
+ - Dropped node v0.10.x support
+
+## 0.6.40
+
+ - Improved error reporting if an install fails
+
+## 0.6.39
+
+ - Support for node v9
+ - Support for versioning on `{libc}` to allow binaries to work on non-glic linux systems like alpine linux
+
+
+## 0.6.38
+
+ - Maintaining compatibility (for v0.6.x series) with node v0.10.x
+
+## 0.6.37
+
+ - Solved one part of #276: now now deduce the node ABI from the major version for node >= 2 even when not stored in the abi_crosswalk.json
+ - Fixed docs to avoid mentioning the deprecated and dangerous `prepublish` in package.json (#291)
+ - Add new node versions to crosswalk
+ - Ported tests to use tape instead of mocha
+ - Got appveyor tests passing by downgrading npm and node-gyp
+
+## 0.6.36
+
+ - Removed the running of `testbinary` during install. Because this was regressed for so long, it is too dangerous to re-enable by default. Developers needing validation can call `node-pre-gyp testbinary` directory.
+ - Fixed regression in v0.6.35 for electron installs (now skipping binary validation which is not yet supported for electron)
+
+## 0.6.35
+
+ - No longer recommending `npm ls` in `prepublish` (#291)
+ - Fixed testbinary command (#283) @szdavid92
+
+## 0.6.34
+
+ - Added new node versions to crosswalk, including v8
+ - Upgraded deps to latest versions, started using `^` instead of `~` for all deps.
+
+## 0.6.33
+
+ - Improved support for yarn
+
+## 0.6.32
+
+ - Honor npm configuration for CA bundles (@heikkipora)
+ - Add node-pre-gyp and npm versions to user agent (@addaleax)
+ - Updated various deps
+ - Add known node version for v7.x
+
+## 0.6.31
+
+ - Updated various deps
+
+## 0.6.30
+
+ - Update to npmlog@4.x and semver@5.3.x
+ - Add known node version for v6.5.0
+
+## 0.6.29
+
+ - Add known node versions for v0.10.45, v0.12.14, v4.4.4, v5.11.1, and v6.1.0
+
+## 0.6.28
+
+ - Now more verbose when remote binaries are not available. This is needed since npm is increasingly more quiet by default
+   and users need to know why builds are falling back to source compiles that might then error out.
+
+## 0.6.27
+
+ - Add known node version for node v6
+ - Stopped bundling dependencies
+ - Documented method for module authors to avoid bundling node-pre-gyp
+   - See https://github.com/mapbox/node-pre-gyp/tree/master#configuring for details
+
+## 0.6.26
+
+ - Skip validation for nw runtime (https://github.com/mapbox/node-pre-gyp/pull/181) via @fleg
+
+## 0.6.25
+
+ - Improved support for auto-detection of electron runtime in `node-pre-gyp.find()`
+   - Pull request from @enlight - https://github.com/mapbox/node-pre-gyp/pull/187
+ - Add known node version for 4.4.1 and 5.9.1
+
+## 0.6.24
+
+ - Add known node version for 5.8.0, 5.9.0, and 4.4.0.
+
+## 0.6.23
+
+ - Add known node version for 0.10.43, 0.12.11, 4.3.2, and 5.7.1.
+
+## 0.6.22
+
+ - Add known node version for 4.3.1, and 5.7.0.
+
+## 0.6.21
+
+ - Add known node version for 0.10.42, 0.12.10, 4.3.0, and 5.6.0.
+
+## 0.6.20
+
+ - Add known node version for 4.2.5, 4.2.6, 5.4.0, 5.4.1,and 5.5.0.
+
+## 0.6.19
+
+ - Add known node version for 4.2.4
+
+## 0.6.18
+
+ - Add new known node versions for 0.10.x, 0.12.x, 4.x, and 5.x
+
+## 0.6.17
+
+ - Re-tagged to fix packaging problem of `Error: Cannot find module 'isarray'`
+
+## 0.6.16
+
+ - Added known version in crosswalk for 5.1.0.
+
+## 0.6.15
+
+ - Upgraded tar-pack (https://github.com/mapbox/node-pre-gyp/issues/182)
+ - Support custom binary hosting mirror (https://github.com/mapbox/node-pre-gyp/pull/170)
+ - Added known version in crosswalk for 4.2.2.
+
+## 0.6.14
+
+ - Added node 5.x version
+
+## 0.6.13
+
+ - Added more known node 4.x versions
+
+## 0.6.12
+
+ - Added support for [Electron](http://electron.atom.io/). Just pass the `--runtime=electron` flag when building/installing. Thanks @zcbenz
+
+## 0.6.11
+
+ - Added known node and io.js versions including more 3.x and 4.x versions
+
+## 0.6.10
+
+ - Added known node and io.js versions including 3.x and 4.x versions
+ - Upgraded `tar` dep
+
+## 0.6.9
+
+ - Upgraded `rc` dep
+ - Updated known io.js version: v2.4.0
+
+## 0.6.8
+
+ - Upgraded `semver` and `rimraf` deps
+ - Updated known node and io.js versions
+
+## 0.6.7
+
+ - Fixed `node_abi` versions for io.js 1.1.x -> 1.8.x (should be 43, but was stored as 42) (refs https://github.com/iojs/build/issues/94)
+
+## 0.6.6
+
+ - Updated with known io.js 2.0.0 version
+
+## 0.6.5
+
+ - Now respecting `npm_config_node_gyp` (https://github.com/npm/npm/pull/4887)
+ - Updated to semver@4.3.2
+ - Updated known node v0.12.x versions and io.js 1.x versions.
+
+## 0.6.4
+
+ - Improved support for `io.js` (@fengmk2)
+ - Test coverage improvements (@mikemorris)
+ - Fixed support for `--dist-url` that regressed in 0.6.3
+
+## 0.6.3
+
+ - Added support for passing raw options to node-gyp using `--` separator. Flags passed after
+   the `--` to `node-pre-gyp configure` will be passed directly to gyp while flags passed
+   after the `--` will be passed directly to make/visual studio.
+ - Added `node-pre-gyp configure` command to be able to call `node-gyp configure` directly
+ - Fix issue with require validation not working on windows 7 (@edgarsilva)
+
+## 0.6.2
+
+ - Support for io.js >= v1.0.2
+ - Deferred require of `request` and `tar` to help speed up command line usage of `node-pre-gyp`.
+
+## 0.6.1
+
+ - Fixed bundled `tar` version
+
+## 0.6.0
+
+ - BREAKING: node odd releases like v0.11.x now use `major.minor.patch` for `{node_abi}` instead of `NODE_MODULE_VERSION` (#124)
+ - Added support for `toolset` option in versioning. By default is an empty string but `--toolset` can be passed to publish or install to select alternative binaries that target a custom toolset like C++11. For example to target Visual Studio 2014 modules like node-sqlite3 use `--toolset=v140`.
+ - Added support for `--no-rollback` option to request that a failed binary test does not remove the binary module leaves it in place.
+ - Added support for `--update-binary` option to request an existing binary be re-installed and the check for a valid local module be skipped.
+ - Added support for passing build options from `npm` through `node-pre-gyp` to `node-gyp`: `--nodedir`, `--disturl`, `--python`, and `--msvs_version`
+
+## 0.5.31
+
+ - Added support for deducing node_abi for node.js runtime from previous release if the series is even
+ - Added support for --target=0.10.33
+
+## 0.5.30
+
+ - Repackaged with latest bundled deps
+
+## 0.5.29
+
+ - Added support for semver `build`.
+ - Fixed support for downloading from urls that include `+`.
+
+## 0.5.28
+
+ - Now reporting unix style paths only in reveal command
+
+## 0.5.27
+
+ - Fixed support for auto-detecting s3 bucket name when it contains `.` - @taavo
+ - Fixed support for installing when path contains a `'` - @halfdan
+ - Ported tests to mocha
+
+## 0.5.26
+
+ - Fix node-webkit support when `--target` option is not provided
+
+## 0.5.25
+
+ - Fix bundling of deps
+
+## 0.5.24
+
+ - Updated ABI crosswalk to incldue node v0.10.30 and v0.10.31
+
+## 0.5.23
+
+ - Added `reveal` command. Pass no options to get all versioning data as json. Pass a second arg to grab a single versioned property value
+ - Added support for `--silent` (shortcut for `--loglevel=silent`)
+
+## 0.5.22
+
+ - Fixed node-webkit versioning name (NOTE: node-webkit support still experimental)
+
+## 0.5.21
+
+ - New package to fix `shasum check failed` error with v0.5.20
+
+## 0.5.20
+
+ - Now versioning node-webkit binaries based on major.minor.patch - assuming no compatible ABI across versions (#90)
+
+## 0.5.19
+
+ - Updated to know about more node-webkit releases
+
+## 0.5.18
+
+ - Updated to know about more node-webkit releases
+
+## 0.5.17
+
+ - Updated to know about node v0.10.29 release
+
+## 0.5.16
+
+ - Now supporting all aws-sdk configuration parameters (http://docs.aws.amazon.com/AWSJavaScriptSDK/guide/node-configuring.html) (#86)
+
+## 0.5.15
+
+ - Fixed installation of windows packages sub directories on unix systems (#84)
+
+## 0.5.14
+
+ - Finished support for cross building using `--target_platform` option (#82)
+ - Now skipping binary validation on install if target arch/platform do not match the host.
+ - Removed multi-arch validing for OS X since it required a FAT node.js binary
+
+## 0.5.13
+
+ - Fix problem in 0.5.12 whereby the wrong versions of mkdirp and semver where bundled.
+
+## 0.5.12
+
+ - Improved support for node-webkit (@Mithgol)
+
+## 0.5.11
+
+ - Updated target versions listing
+
+## 0.5.10
+
+ - Fixed handling of `-debug` flag passed directory to node-pre-gyp (#72)
+ - Added optional second arg to `node_pre_gyp.find` to customize the default versioning options used to locate the runtime binary
+ - Failed install due to `testbinary` check failure no longer leaves behind binary (#70)
+
+## 0.5.9
+
+ - Fixed regression in `testbinary` command causing installs to fail on windows with 0.5.7 (#60)
+
+## 0.5.8
+
+ - Started bundling deps
+
+## 0.5.7
+
+ - Fixed the `testbinary` check, which is used to determine whether to re-download or source compile, to work even in complex dependency situations (#63)
+ - Exposed the internal `testbinary` command in node-pre-gyp command line tool
+ - Fixed minor bug so that `fallback_to_build` option is always respected
+
+## 0.5.6
+
+ - Added support for versioning on the `name` value in `package.json` (#57).
+ - Moved to using streams for reading tarball when publishing (#52)
+
+## 0.5.5
+
+ - Improved binary validation that also now works with node-webkit (@Mithgol)
+ - Upgraded test apps to work with node v0.11.x
+ - Improved test coverage
+
+## 0.5.4
+
+ - No longer depends on external install of node-gyp for compiling builds.
+
+## 0.5.3
+
+ - Reverted fix for debian/nodejs since it broke windows (#45)
+
+## 0.5.2
+
+ - Support for debian systems where the node binary is named `nodejs` (#45)
+ - Added `bin/node-pre-gyp.cmd` to be able to run command on windows locally (npm creates an .npm automatically when globally installed)
+ - Updated abi-crosswalk with node v0.10.26 entry.
+
+## 0.5.1
+
+ - Various minor bug fixes, several improving windows support for publishing.
+
+## 0.5.0
+
+ - Changed property names in `binary` object: now required are `module_name`, `module_path`, and `host`.
+ - Now `module_path` supports versioning, which allows developers to opt-in to using a versioned install path (#18).
+ - Added `remote_path` which also supports versioning.
+ - Changed `remote_uri` to `host`.
+
+## 0.4.2
+
+ - Added support for `--target` flag to request cross-compile against a specific node/node-webkit version.
+ - Added preliminary support for node-webkit
+ - Fixed support for `--target_arch` option being respected in all cases.
+
+## 0.4.1
+
+ - Fixed exception when only stderr is available in binary test (@bendi / #31)
+
+## 0.4.0
+
+ - Enforce only `https:` based remote publishing access.
+ - Added `node-pre-gyp info` command to display listing of published binaries
+ - Added support for changing the directory node-pre-gyp should build in with the `-C/--directory` option.
+ - Added support for S3 prefixes.
+
+## 0.3.1
+
+ - Added `unpublish` command.
+ - Fixed module path construction in tests.
+ - Added ability to disable falling back to build behavior via `npm install --fallback-to-build=false` which overrides setting in a depedencies package.json `install` target.
+
+## 0.3.0
+
+ - Support for packaging all files in `module_path` directory - see `app4` for example
+ - Added `testpackage` command.
+ - Changed `clean` command to only delete `.node` not entire `build` directory since node-gyp will handle that.
+ - `.node` modules must be in a folder of there own since tar-pack will remove everything when it unpacks.
diff --git a/node_modules/@mapbox/node-pre-gyp/LICENSE b/node_modules/@mapbox/node-pre-gyp/LICENSE
new file mode 100644
index 0000000..8f5fce9
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/LICENSE
@@ -0,0 +1,27 @@
+Copyright (c), Mapbox
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name of node-pre-gyp nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/node_modules/@mapbox/node-pre-gyp/README.md b/node_modules/@mapbox/node-pre-gyp/README.md
new file mode 100644
index 0000000..203285a
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/README.md
@@ -0,0 +1,742 @@
+# @mapbox/node-pre-gyp
+
+#### @mapbox/node-pre-gyp makes it easy to publish and install Node.js C++ addons from binaries
+
+[![Build Status](https://travis-ci.com/mapbox/node-pre-gyp.svg?branch=master)](https://travis-ci.com/mapbox/node-pre-gyp)
+[![Build status](https://ci.appveyor.com/api/projects/status/3nxewb425y83c0gv)](https://ci.appveyor.com/project/Mapbox/node-pre-gyp)
+
+`@mapbox/node-pre-gyp` stands between [npm](https://github.com/npm/npm) and [node-gyp](https://github.com/Tootallnate/node-gyp) and offers a cross-platform method of binary deployment.
+
+### Special note on previous package
+
+On Feb 9th, 2021 `@mapbox/node-pre-gyp@1.0.0` was [released](./CHANGELOG.md). Older, unscoped versions that are not part of the `@mapbox` org are deprecated and only `@mapbox/node-pre-gyp` will see updates going forward. To upgrade to the new package do:
+
+```
+npm uninstall node-pre-gyp --save
+npm install @mapbox/node-pre-gyp --save
+```
+
+### Features
+
+ - A command line tool called `node-pre-gyp` that can install your package's C++ module from a binary.
+ - A variety of developer targeted commands for packaging, testing, and publishing binaries.
+ - A JavaScript module that can dynamically require your installed binary: `require('@mapbox/node-pre-gyp').find`
+
+For a hello world example of a module packaged with `node-pre-gyp` see <https://github.com/springmeyer/node-addon-example> and [the wiki ](https://github.com/mapbox/node-pre-gyp/wiki/Modules-using-node-pre-gyp) for real world examples.
+
+## Credits
+
+ - The module is modeled after [node-gyp](https://github.com/Tootallnate/node-gyp) by [@Tootallnate](https://github.com/Tootallnate)
+ - Motivation for initial development came from [@ErisDS](https://github.com/ErisDS) and the [Ghost Project](https://github.com/TryGhost/Ghost).
+ - Development is sponsored by [Mapbox](https://www.mapbox.com/)
+
+## FAQ
+
+See the [Frequently Ask Questions](https://github.com/mapbox/node-pre-gyp/wiki/FAQ).
+
+## Depends
+
+ - Node.js >= node v8.x
+
+## Install
+
+`node-pre-gyp` is designed to be installed as a local dependency of your Node.js C++ addon and accessed like:
+
+    ./node_modules/.bin/node-pre-gyp --help
+
+But you can also install it globally:
+
+    npm install @mapbox/node-pre-gyp -g
+
+## Usage
+
+### Commands
+
+View all possible commands:
+
+    node-pre-gyp --help
+
+- clean - Remove the entire folder containing the compiled .node module
+- install - Install pre-built binary for module
+- reinstall - Run "clean" and "install" at once
+- build - Compile the module by dispatching to node-gyp or nw-gyp
+- rebuild - Run "clean" and "build" at once
+- package - Pack binary into tarball
+- testpackage - Test that the staged package is valid
+- publish - Publish pre-built binary
+- unpublish - Unpublish pre-built binary
+- info - Fetch info on published binaries
+
+You can also chain commands:
+
+    node-pre-gyp clean build unpublish publish info
+
+### Options
+
+Options include:
+
+ - `-C/--directory`: run the command in this directory
+ - `--build-from-source`: build from source instead of using pre-built binary
+ - `--update-binary`: reinstall by replacing previously installed local binary with remote binary
+ - `--runtime=node-webkit`: customize the runtime: `node`, `electron` and `node-webkit` are the valid options
+ - `--fallback-to-build`: fallback to building from source if pre-built binary is not available
+ - `--target=0.4.0`: Pass the target node or node-webkit version to compile against
+ - `--target_arch=ia32`: Pass the target arch and override the host `arch`. Any value that is [supported by Node.js](https://nodejs.org/api/os.html#osarch) is valid.
+ - `--target_platform=win32`: Pass the target platform and override the host `platform`. Valid values are `linux`, `darwin`, `win32`, `sunos`, `freebsd`, `openbsd`, and `aix`.
+
+Both `--build-from-source` and `--fallback-to-build` can be passed alone or they can provide values. You can pass `--fallback-to-build=false` to override the option as declared in package.json. In addition to being able to pass `--build-from-source` you can also pass `--build-from-source=myapp` where `myapp` is the name of your module.
+
+For example: `npm install --build-from-source=myapp`. This is useful if:
+
+ - `myapp` is referenced in the package.json of a larger app and therefore `myapp` is being installed as a dependency with `npm install`.
+ - The larger app also depends on other modules installed with `node-pre-gyp`
+ - You only want to trigger a source compile for `myapp` and the other modules.
+
+### Configuring
+
+This is a guide to configuring your module to use node-pre-gyp.
+
+#### 1) Add new entries to your `package.json`
+
+ - Add `@mapbox/node-pre-gyp` to `dependencies`
+ - Add `aws-sdk` as a `devDependency`
+ - Add a custom `install` script
+ - Declare a `binary` object
+
+This looks like:
+
+```js
+    "dependencies"  : {
+      "@mapbox/node-pre-gyp": "1.x"
+    },
+    "devDependencies": {
+      "aws-sdk": "2.x"
+    }
+    "scripts": {
+        "install": "node-pre-gyp install --fallback-to-build"
+    },
+    "binary": {
+        "module_name": "your_module",
+        "module_path": "./lib/binding/",
+        "host": "https://your_module.s3-us-west-1.amazonaws.com"
+    }
+```
+
+For a full example see [node-addon-examples's package.json](https://github.com/springmeyer/node-addon-example/blob/master/package.json).
+
+Let's break this down:
+
+ - Dependencies need to list `node-pre-gyp`
+ - Your devDependencies should list `aws-sdk` so that you can run `node-pre-gyp publish` locally or a CI system. We recommend using `devDependencies` only since `aws-sdk` is large and not needed for `node-pre-gyp install` since it only uses http to fetch binaries
+ - Your `scripts` section should override the `install` target with `"install": "node-pre-gyp install --fallback-to-build"`. This allows node-pre-gyp to be used instead of the default npm behavior of always source compiling with `node-gyp` directly.
+ - Your package.json should contain a `binary` section describing key properties you provide to allow node-pre-gyp to package optimally. They are detailed below.
+
+Note: in the past we recommended putting `@mapbox/node-pre-gyp` in the `bundledDependencies`, but we no longer recommend this. In the past there were npm bugs (with node versions 0.10.x) that could lead to node-pre-gyp not being available at the right time during install (unless we bundled). This should no longer be the case. Also, for a time we recommended using `"preinstall": "npm install @mapbox/node-pre-gyp"` as an alternative method to avoid needing to bundle. But this did not behave predictably across all npm versions - see https://github.com/mapbox/node-pre-gyp/issues/260 for the details. So we do not recommend using `preinstall` to install `@mapbox/node-pre-gyp`. More history on this at https://github.com/strongloop/fsevents/issues/157#issuecomment-265545908.
+
+##### The `binary` object has three required properties
+
+###### module_name
+
+The name of your native node module. This value must:
+
+ - Match the name passed to [the NODE_MODULE macro](http://nodejs.org/api/addons.html#addons_hello_world)
+ - Must be a valid C variable name (e.g. it cannot contain `-`)
+ - Should not include the `.node` extension.
+
+###### module_path
+
+The location your native module is placed after a build. This should be an empty directory without other Javascript files. This entire directory will be packaged in the binary tarball. When installing from a remote package this directory will be overwritten with the contents of the tarball.
+
+Note: This property supports variables based on [Versioning](#versioning).
+
+###### host
+
+A url to the remote location where you've published tarball binaries (must be `https` not `http`).
+
+It is highly recommended that you use Amazon S3. The reasons are:
+
+  - Various node-pre-gyp commands like `publish` and `info` only work with an S3 host.
+  - S3 is a very solid hosting platform for distributing large files.
+  - We provide detail documentation for using [S3 hosting](#s3-hosting) with node-pre-gyp.
+
+Why then not require S3? Because while some applications using node-pre-gyp need to distribute binaries as large as 20-30 MB, others might have very small binaries and might wish to store them in a GitHub repo. This is not recommended, but if an author really wants to host in a non-S3 location then it should be possible.
+
+It should also be mentioned that there is an optional and entirely separate npm module called [node-pre-gyp-github](https://github.com/bchr02/node-pre-gyp-github) which is intended to complement node-pre-gyp and be installed along with it. It provides the ability to store and publish your binaries within your repositories GitHub Releases if you would rather not use S3 directly. Installation and usage instructions can be found [here](https://github.com/bchr02/node-pre-gyp-github), but the basic premise is that instead of using the ```node-pre-gyp publish``` command you would use ```node-pre-gyp-github publish```.
+
+##### The `binary` object other optional S3 properties
+
+If you are not using a standard s3 path like `bucket_name.s3(.-)region.amazonaws.com`, you might get an error on `publish` because node-pre-gyp extracts the region and bucket from the `host` url. For example, you may have an on-premises s3-compatible storage  server, or may have configured a specific dns redirecting to an s3  endpoint. In these cases, you can explicitly set the `region` and `bucket` properties to tell node-pre-gyp to use these values instead of guessing from the `host` property. The following values can be used in the `binary` section:
+
+###### host
+
+The url to the remote server root location (must be `https` not `http`).
+
+###### bucket
+
+The bucket name where your tarball binaries should be located.
+
+###### region
+
+Your S3 server region.
+
+###### s3ForcePathStyle
+
+Set `s3ForcePathStyle` to true if the endpoint url should not be prefixed with the bucket name. If false (default), the server endpoint would be  constructed as `bucket_name.your_server.com`.
+
+##### The `binary` object has optional properties
+
+###### remote_path
+
+It **is recommended** that you customize this property. This is an extra path to use for publishing and finding remote tarballs. The default value for `remote_path` is `""` meaning that if you do not provide it then all packages will be published at the base of the `host`. It is recommended to provide a value like `./{name}/v{version}` to help organize remote packages in the case that you choose to publish multiple node addons to the same `host`.
+
+Note: This property supports variables based on [Versioning](#versioning).
+
+###### package_name
+
+It is **not recommended** to override this property unless you are also overriding the `remote_path`. This is the versioned name of the remote tarball containing the binary `.node` module and any supporting files you've placed inside the `module_path` directory. Unless you specify `package_name` in your `package.json` then it defaults to `{module_name}-v{version}-{node_abi}-{platform}-{arch}.tar.gz` which allows your binary to work across node versions, platforms, and architectures. If you are using `remote_path` that is also versioned by `./{module_name}/v{version}` then you could remove these variables from the `package_name` and just use: `{node_abi}-{platform}-{arch}.tar.gz`. Then your remote tarball will be looked up at, for example, `https://example.com/your-module/v0.1.0/node-v11-linux-x64.tar.gz`.
+
+Avoiding the version of your module in the `package_name` and instead only embedding in a directory name can be useful when you want to make a quick tag of your module that does not change any C++ code. In this case you can just copy binaries to the new version behind the scenes like:
+
+```sh
+aws s3 sync --acl public-read s3://mapbox-node-binary/sqlite3/v3.0.3/ s3://mapbox-node-binary/sqlite3/v3.0.4/
+```
+
+Note: This property supports variables based on [Versioning](#versioning).
+
+#### 2) Add a new target to binding.gyp
+
+`node-pre-gyp` calls out to `node-gyp` to compile the module and passes variables along like [module_name](#module_name) and [module_path](#module_path).
+
+A new target must be added to `binding.gyp` that moves the compiled `.node` module from `./build/Release/module_name.node` into the directory specified by `module_path`.
+
+Add a target like this at the end of your `targets` list:
+
+```js
+    {
+      "target_name": "action_after_build",
+      "type": "none",
+      "dependencies": [ "<(module_name)" ],
+      "copies": [
+        {
+          "files": [ "<(PRODUCT_DIR)/<(module_name).node" ],
+          "destination": "<(module_path)"
+        }
+      ]
+    }
+```
+
+For a full example see [node-addon-example's binding.gyp](https://github.com/springmeyer/node-addon-example/blob/2ff60a8ded7f042864ad21db00c3a5a06cf47075/binding.gyp).
+
+#### 3) Dynamically require your `.node`
+
+Inside the main js file that requires your addon module you are likely currently doing:
+
+```js
+var binding = require('../build/Release/binding.node');
+```
+
+or:
+
+```js
+var bindings = require('./bindings')
+```
+
+Change those lines to:
+
+```js
+var binary = require('@mapbox/node-pre-gyp');
+var path = require('path');
+var binding_path = binary.find(path.resolve(path.join(__dirname,'./package.json')));
+var binding = require(binding_path);
+```
+
+For a full example see [node-addon-example's index.js](https://github.com/springmeyer/node-addon-example/blob/2ff60a8ded7f042864ad21db00c3a5a06cf47075/index.js#L1-L4)
+
+#### 4) Build and package your app
+
+Now build your module from source:
+
+    npm install --build-from-source
+
+The `--build-from-source` tells `node-pre-gyp` to not look for a remote package and instead dispatch to node-gyp to build.
+
+Now `node-pre-gyp` should now also be installed as a local dependency so the command line tool it offers can be found at `./node_modules/.bin/node-pre-gyp`.
+
+#### 5) Test
+
+Now `npm test` should work just as it did before.
+
+#### 6) Publish the tarball
+
+Then package your app:
+
+    ./node_modules/.bin/node-pre-gyp package
+
+Once packaged, now you can publish:
+
+    ./node_modules/.bin/node-pre-gyp publish
+
+Currently the `publish` command pushes your binary to S3. This requires:
+
+ - You have installed `aws-sdk` with `npm install aws-sdk`
+ - You have created a bucket already.
+ - The `host` points to an S3 http or https endpoint.
+ - You have configured node-pre-gyp to read your S3 credentials (see [S3 hosting](#s3-hosting) for details).
+
+You can also host your binaries elsewhere. To do this requires:
+
+ - You manually publish the binary created by the `package` command to an `https` endpoint
+ - Ensure that the `host` value points to your custom `https` endpoint.
+
+#### 7) Automate builds
+
+Now you need to publish builds for all the platforms and node versions you wish to support. This is best automated.
+
+ - See [Appveyor Automation](#appveyor-automation) for how to auto-publish builds on Windows.
+ - See [Travis Automation](#travis-automation) for how to auto-publish builds on OS X and Linux.
+
+#### 8) You're done!
+
+Now publish your module to the npm registry. Users will now be able to install your module from a binary.
+
+What will happen is this:
+
+1. `npm install <your package>` will pull from the npm registry
+2. npm will run the `install` script which will call out to `node-pre-gyp`
+3. `node-pre-gyp` will fetch the binary `.node` module and unpack in the right place
+4. Assuming that all worked, you are done
+
+If a a binary was not available for a given platform and `--fallback-to-build` was used then `node-gyp rebuild` will be called to try to source compile the module.
+
+#### 9) One more option
+
+It may be that you want to work with two s3 buckets, one for staging and one for production; this
+arrangement makes it less likely to accidentally overwrite a production binary. It also allows the production
+environment to have more restrictive permissions than staging while still enabling publishing when
+developing and testing.
+
+The binary.host property can be set at execution time. In order to do so all of the following conditions
+must be true.
+
+- binary.host is falsey or not present
+- binary.staging_host is not empty
+- binary.production_host is not empty
+
+If any of these checks fail then the operation will not perform execution time determination of the s3 target.
+
+If the command being executed is either "publish" or "unpublish" then the default is set to `binary.staging_host`. In all other cases
+the default is `binary.production_host`.
+
+The command-line options `--s3_host=staging` or `--s3_host=production` override the default. If `s3_host`
+is present and not `staging` or `production` an exception is thrown.
+
+This allows installing from staging by specifying `--s3_host=staging`. And it requires specifying
+`--s3_option=production` in order to publish to, or unpublish from, production, making accidental errors less likely.
+
+## Node-API Considerations
+
+[Node-API](https://nodejs.org/api/n-api.html#n_api_node_api), which was previously known as N-API, is an ABI-stable alternative to previous technologies such as [nan](https://github.com/nodejs/nan) which are tied to a specific Node runtime engine. Node-API is Node runtime engine agnostic and guarantees modules created today will continue to run, without changes, into the future.
+
+Using `node-pre-gyp` with Node-API projects requires a handful of additional configuration values and imposes some additional requirements.
+
+The most significant difference is that an Node-API module can be coded to target multiple  Node-API versions. Therefore, an Node-API module must declare in its `package.json` file which Node-API versions the module is designed to run against. In addition, since multiple builds may be required for a single module, path and file names must be specified in way that avoids naming conflicts.
+
+### The `napi_versions` array property
+
+A Node-API module must declare in its `package.json` file, the Node-API versions the module is intended to support. This is accomplished by including an `napi-versions` array property in the `binary` object. For example:
+
+```js
+"binary": {
+    "module_name": "your_module",
+    "module_path": "your_module_path",
+    "host": "https://your_bucket.s3-us-west-1.amazonaws.com",
+    "napi_versions": [1,3]
+  }
+```
+
+If the `napi_versions` array property is *not* present, `node-pre-gyp` operates as it always has. Including the `napi_versions` array property instructs `node-pre-gyp` that this is a Node-API module build.
+
+When the `napi_versions` array property is present, `node-pre-gyp` fires off multiple operations, one for each of the Node-API versions in the array. In the example above, two operations are initiated, one for Node-API version 1 and second for Node-API version 3. How this version number is communicated is described next.
+
+### The `napi_build_version` value
+
+For each of the Node-API module operations `node-pre-gyp` initiates, it ensures that the `napi_build_version` is set appropriately.
+
+This value is of importance in two areas:
+
+1. The C/C++ code which needs to know against which Node-API version it should compile.
+2. `node-pre-gyp` itself which must assign appropriate path and file names to avoid collisions.
+
+### Defining `NAPI_VERSION` for the C/C++ code
+
+The `napi_build_version` value is communicated to the C/C++ code by adding this code to the `binding.gyp` file:
+
+```
+"defines": [
+    "NAPI_VERSION=<(napi_build_version)",
+]
+```
+
+This ensures that `NAPI_VERSION`, an integer value, is declared appropriately to the C/C++ code for each build.
+
+> Note that earlier versions of this document recommended defining the symbol `NAPI_BUILD_VERSION`. `NAPI_VERSION` is preferred because it used by the Node-API C/C++ headers to configure the specific Node-API versions being requested.
+
+### Path and file naming requirements in `package.json`
+
+Since `node-pre-gyp` fires off multiple operations for each request, it is essential that path and file names be created in such a way as to avoid collisions. This is accomplished by imposing additional path and file naming requirements.
+
+Specifically, when performing Node-API builds, the `{napi_build_version}` text configuration value  *must* be present in the `module_path` property. In addition, the `{napi_build_version}` text configuration value  *must* be present in either the `remote_path` or `package_name` property. (No problem if it's in both.)
+
+Here's an example:
+
+```js
+"binary": {
+    "module_name": "your_module",
+    "module_path": "./lib/binding/napi-v{napi_build_version}",
+    "remote_path": "./{module_name}/v{version}/{configuration}/",
+    "package_name": "{platform}-{arch}-napi-v{napi_build_version}.tar.gz",
+    "host": "https://your_bucket.s3-us-west-1.amazonaws.com",
+    "napi_versions": [1,3]
+  }
+```
+
+## Supporting both Node-API and NAN builds
+
+You may have a legacy native add-on that you wish to continue supporting for those versions of Node that do not support Node-API, as you add Node-API support for later Node versions. This can be accomplished by specifying the `node_napi_label` configuration value in the package.json `binary.package_name` property.
+
+Placing the configuration value `node_napi_label` in the package.json `binary.package_name` property instructs `node-pre-gyp` to build all viable Node-API binaries supported by the current Node instance. If the current Node instance does not support Node-API, `node-pre-gyp` will request a traditional, non-Node-API build.
+
+The configuration value `node_napi_label` is set by `node-pre-gyp` to the type of build created, `napi` or `node`, and the version number. For Node-API builds, the string contains the Node-API version nad has values like `napi-v3`. For traditional, non-Node-API builds, the string contains the ABI version with values like `node-v46`.
+
+Here's how the `binary` configuration above might be changed to support both Node-API and NAN builds:
+
+```js
+"binary": {
+    "module_name": "your_module",
+    "module_path": "./lib/binding/{node_napi_label}",
+    "remote_path": "./{module_name}/v{version}/{configuration}/",
+    "package_name": "{platform}-{arch}-{node_napi_label}.tar.gz",
+    "host": "https://your_bucket.s3-us-west-1.amazonaws.com",
+    "napi_versions": [1,3]
+  }
+```
+
+The C/C++ symbol `NAPI_VERSION` can be used to distinguish Node-API and non-Node-API builds. The value of `NAPI_VERSION` is set to the integer Node-API version for Node-API builds and is set to `0` for non-Node-API builds.
+
+For example:
+
+```C
+#if NAPI_VERSION
+// Node-API code goes here
+#else
+// NAN code goes here
+#endif
+```
+
+### Two additional configuration values
+
+The following two configuration values, which were implemented in previous versions of `node-pre-gyp`, continue to exist, but have been replaced by the `node_napi_label` configuration value described above.
+
+1. `napi_version` If Node-API is supported by the currently executing Node instance, this value is the Node-API version number supported by Node. If Node-API is not supported, this value is an empty string.
+
+2. `node_abi_napi` If the value returned for `napi_version` is non empty, this value is `'napi'`. If the value returned for `napi_version` is empty, this value is the value returned for `node_abi`.
+
+These values are present for use in the `binding.gyp` file and may be used as `{napi_version}` and `{node_abi_napi}` for text substituion in the `binary` properties of the `package.json` file.
+
+## S3 Hosting
+
+You can host wherever you choose but S3 is cheap, `node-pre-gyp publish` expects it, and S3 can be integrated well with [Travis.ci](http://travis-ci.org) to automate builds for OS X and Ubuntu, and with [Appveyor](http://appveyor.com) to automate builds for Windows. Here is an approach to do this:
+
+First, get setup locally and test the workflow:
+
+#### 1) Create an S3 bucket
+
+And have your **key** and **secret key** ready for writing to the bucket.
+
+It is recommended to create a IAM user with a policy that only gives permissions to the specific bucket you plan to publish to. This can be done in the [IAM console](https://console.aws.amazon.com/iam/) by: 1) adding a new user, 2) choosing `Attach User Policy`, 3) Using the `Policy Generator`, 4) selecting `Amazon S3` for the service, 5) adding the actions: `DeleteObject`, `GetObject`, `GetObjectAcl`, `ListBucket`, `HeadBucket`, `PutObject`, `PutObjectAcl`, 6) adding an ARN of `arn:aws:s3:::bucket/*` (replacing `bucket` with your bucket name), and finally 7) clicking `Add Statement` and saving the policy. It should generate a policy like:
+
+```js
+{
+    "Version": "2012-10-17",
+    "Statement": [
+        {
+            "Sid": "objects",
+            "Effect": "Allow",
+            "Action": [
+                "s3:PutObject",
+                "s3:GetObjectAcl",
+                "s3:GetObject",
+                "s3:DeleteObject",
+                "s3:PutObjectAcl"
+            ],
+            "Resource": "arn:aws:s3:::your-bucket-name/*"
+        },
+        {
+            "Sid": "bucket",
+            "Effect": "Allow",
+            "Action": "s3:ListBucket",
+            "Resource": "arn:aws:s3:::your-bucket-name"
+        },
+        {
+            "Sid": "buckets",
+            "Effect": "Allow",
+            "Action": "s3:HeadBucket",
+            "Resource": "*"
+        }
+    ]
+}
+```
+
+#### 2) Install node-pre-gyp
+
+Either install it globally:
+
+    npm install node-pre-gyp -g
+
+Or put the local version on your PATH
+
+    export PATH=`pwd`/node_modules/.bin/:$PATH
+
+#### 3) Configure AWS credentials
+
+It is recommended to configure the AWS JS SDK v2 used internally by `node-pre-gyp` by setting these environment variables:
+
+- AWS_ACCESS_KEY_ID
+- AWS_SECRET_ACCESS_KEY
+
+But also you can also use the `Shared Config File` mentioned [in the AWS JS SDK v2 docs](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/configuring-the-jssdk.html)
+
+#### 4) Package and publish your build
+
+Install the `aws-sdk`:
+
+    npm install aws-sdk
+
+Then publish:
+
+    node-pre-gyp package publish
+
+Note: if you hit an error like `Hostname/IP doesn't match certificate's altnames` it may mean that you need to provide the `region` option in your config.
+
+## Appveyor Automation
+
+[Appveyor](http://www.appveyor.com/) can build binaries and publish the results per commit and supports:
+
+ - Windows Visual Studio 2013 and related compilers
+ - Both 64 bit (x64) and 32 bit (x86) build configurations
+ - Multiple Node.js versions
+
+For an example of doing this see [node-sqlite3's appveyor.yml](https://github.com/mapbox/node-sqlite3/blob/master/appveyor.yml).
+
+Below is a guide to getting set up:
+
+#### 1) Create a free Appveyor account
+
+Go to https://ci.appveyor.com/signup/free and sign in with your GitHub account.
+
+#### 2) Create a new project
+
+Go to https://ci.appveyor.com/projects/new and select the GitHub repo for your module
+
+#### 3) Add appveyor.yml and push it
+
+Once you have committed an `appveyor.yml` ([appveyor.yml reference](http://www.appveyor.com/docs/appveyor-yml)) to your GitHub repo and pushed it AppVeyor should automatically start building your project.
+
+#### 4) Create secure variables
+
+Encrypt your S3 AWS keys by going to <https://ci.appveyor.com/tools/encrypt> and hitting the `encrypt` button.
+
+Then paste the result into your `appveyor.yml`
+
+```yml
+environment:
+  AWS_ACCESS_KEY_ID:
+    secure: Dn9HKdLNYvDgPdQOzRq/DqZ/MPhjknRHB1o+/lVU8MA=
+  AWS_SECRET_ACCESS_KEY:
+    secure: W1rwNoSnOku1r+28gnoufO8UA8iWADmL1LiiwH9IOkIVhDTNGdGPJqAlLjNqwLnL
+```
+
+NOTE: keys are per account but not per repo (this is difference than Travis where keys are per repo but not related to the account used to encrypt them).
+
+#### 5) Hook up publishing
+
+Just put `node-pre-gyp package publish` in your `appveyor.yml` after `npm install`.
+
+#### 6) Publish when you want
+
+You might wish to publish binaries only on a specific commit. To do this you could borrow from the [Travis CI idea of commit keywords](http://about.travis-ci.org/docs/user/how-to-skip-a-build/) and add special handling for commit messages with `[publish binary]`:
+
+    SET CM=%APPVEYOR_REPO_COMMIT_MESSAGE%
+    if not "%CM%" == "%CM:[publish binary]=%" node-pre-gyp --msvs_version=2013 publish
+
+If your commit message contains special characters (e.g. `&`) this method might fail. An alternative is to use PowerShell, which gives you additional possibilities, like ignoring case by using `ToLower()`:
+
+    ps: if($env:APPVEYOR_REPO_COMMIT_MESSAGE.ToLower().Contains('[publish binary]')) { node-pre-gyp --msvs_version=2013 publish }
+
+Remember this publishing is not the same as `npm publish`. We're just talking about the binary module here and not your entire npm package.
+
+## Travis Automation
+
+[Travis](https://travis-ci.org/) can push to S3 after a successful build and supports both:
+
+ - Ubuntu Precise and OS X (64 bit)
+ - Multiple Node.js versions
+
+For an example of doing this see [node-add-example's .travis.yml](https://github.com/springmeyer/node-addon-example/blob/2ff60a8ded7f042864ad21db00c3a5a06cf47075/.travis.yml).
+
+Note: if you need 32 bit binaries, this can be done from a 64 bit Travis machine. See [the node-sqlite3 scripts for an example of doing this](https://github.com/mapbox/node-sqlite3/blob/bae122aa6a2b8a45f6b717fab24e207740e32b5d/scripts/build_against_node.sh#L54-L74).
+
+Below is a guide to getting set up:
+
+#### 1) Install the Travis gem
+
+    gem install travis
+
+#### 2) Create secure variables
+
+Make sure you run this command from within the directory of your module.
+
+Use `travis-encrypt` like:
+
+    travis encrypt AWS_ACCESS_KEY_ID=${node_pre_gyp_accessKeyId}
+    travis encrypt AWS_SECRET_ACCESS_KEY=${node_pre_gyp_secretAccessKey}
+
+Then put those values in your `.travis.yml` like:
+
+```yaml
+env:
+  global:
+    - secure: F+sEL/v56CzHqmCSSES4pEyC9NeQlkoR0Gs/ZuZxX1ytrj8SKtp3MKqBj7zhIclSdXBz4Ev966Da5ctmcTd410p0b240MV6BVOkLUtkjZJyErMBOkeb8n8yVfSoeMx8RiIhBmIvEn+rlQq+bSFis61/JkE9rxsjkGRZi14hHr4M=
+    - secure: o2nkUQIiABD139XS6L8pxq3XO5gch27hvm/gOdV+dzNKc/s2KomVPWcOyXNxtJGhtecAkABzaW8KHDDi5QL1kNEFx6BxFVMLO8rjFPsMVaBG9Ks6JiDQkkmrGNcnVdxI/6EKTLHTH5WLsz8+J7caDBzvKbEfTux5EamEhxIWgrI=
+```
+
+More details on Travis encryption at http://about.travis-ci.org/docs/user/encryption-keys/.
+
+#### 3) Hook up publishing
+
+Just put `node-pre-gyp package publish` in your `.travis.yml` after `npm install`.
+
+##### OS X publishing
+
+If you want binaries for OS X in addition to linux you can enable [multi-os for Travis](http://docs.travis-ci.com/user/multi-os/#Setting-.travis.yml)
+
+Use a configuration like:
+
+```yml
+
+language: cpp
+
+os:
+- linux
+- osx
+
+env:
+  matrix:
+    - NODE_VERSION="4"
+    - NODE_VERSION="6"
+
+before_install:
+- rm -rf ~/.nvm/ && git clone --depth 1 https://github.com/creationix/nvm.git ~/.nvm
+- source ~/.nvm/nvm.sh
+- nvm install $NODE_VERSION
+- nvm use $NODE_VERSION
+```
+
+See [Travis OS X Gotchas](#travis-os-x-gotchas) for why we replace `language: node_js` and `node_js:` sections with `language: cpp` and a custom matrix.
+
+Also create platform specific sections for any deps that need install. For example if you need libpng:
+
+```yml
+- if [ $(uname -s) == 'Linux' ]; then apt-get install libpng-dev; fi;
+- if [ $(uname -s) == 'Darwin' ]; then brew install libpng; fi;
+```
+
+For detailed multi-OS examples see [node-mapnik](https://github.com/mapnik/node-mapnik/blob/master/.travis.yml) and [node-sqlite3](https://github.com/mapbox/node-sqlite3/blob/master/.travis.yml).
+
+##### Travis OS X Gotchas
+
+First, unlike the Travis Linux machines, the OS X machines do not put `node-pre-gyp` on PATH by default. To do so you will need to:
+
+```sh
+export PATH=$(pwd)/node_modules/.bin:${PATH}
+```
+
+Second, the OS X machines do not support using a matrix for installing different Node.js versions. So you need to bootstrap the installation of Node.js in a cross platform way.
+
+By doing:
+
+```yml
+env:
+  matrix:
+    - NODE_VERSION="4"
+    - NODE_VERSION="6"
+
+before_install:
+ - rm -rf ~/.nvm/ && git clone --depth 1 https://github.com/creationix/nvm.git ~/.nvm
+ - source ~/.nvm/nvm.sh
+ - nvm install $NODE_VERSION
+ - nvm use $NODE_VERSION
+```
+
+You can easily recreate the previous behavior of this matrix:
+
+```yml
+node_js:
+  - "4"
+  - "6"
+```
+
+#### 4) Publish when you want
+
+You might wish to publish binaries only on a specific commit. To do this you could borrow from the [Travis CI idea of commit keywords](http://about.travis-ci.org/docs/user/how-to-skip-a-build/) and add special handling for commit messages with `[publish binary]`:
+
+    COMMIT_MESSAGE=$(git log --format=%B --no-merges -n 1 | tr -d '\n')
+    if [[ ${COMMIT_MESSAGE} =~ "[publish binary]" ]]; then node-pre-gyp publish; fi;
+
+Then you can trigger new binaries to be built like:
+
+    git commit -a -m "[publish binary]"
+
+Or, if you don't have any changes to make simply run:
+
+    git commit --allow-empty -m "[publish binary]"
+
+WARNING: if you are working in a pull request and publishing binaries from there then you will want to avoid double publishing when Travis CI builds both the `push` and `pr`. You only want to run the publish on the `push` commit. See https://github.com/Project-OSRM/node-osrm/blob/8eb837abe2e2e30e595093d16e5354bc5c573575/scripts/is_pr_merge.sh which is called from https://github.com/Project-OSRM/node-osrm/blob/8eb837abe2e2e30e595093d16e5354bc5c573575/scripts/publish.sh for an example of how to do this.
+
+Remember this publishing is not the same as `npm publish`. We're just talking about the binary module here and not your entire npm package. To automate the publishing of your entire package to npm on Travis see http://about.travis-ci.org/docs/user/deployment/npm/
+
+# Versioning
+
+The `binary` properties of `module_path`, `remote_path`, and `package_name` support variable substitution. The strings are evaluated by `node-pre-gyp` depending on your system and any custom build flags you passed.
+
+ - `node_abi`: The node C++ `ABI` number. This value is available in Javascript as `process.versions.modules` as of [`>= v0.10.4 >= v0.11.7`](https://github.com/joyent/node/commit/ccabd4a6fa8a6eb79d29bc3bbe9fe2b6531c2d8e) and in C++ as the `NODE_MODULE_VERSION` define much earlier. For versions of Node before this was available we fallback to the V8 major and minor version.
+ - `platform` matches node's `process.platform` like `linux`, `darwin`, and `win32` unless the user passed the `--target_platform` option to override.
+ - `arch` matches node's `process.arch` like `x64` or `ia32` unless the user passes the `--target_arch` option to override.
+ - `libc` matches `require('detect-libc').family` like `glibc` or `musl` unless the user passes the `--target_libc` option to override.
+ - `configuration` - Either 'Release' or 'Debug' depending on if `--debug` is passed during the build.
+ - `module_name` - the `binary.module_name` attribute from `package.json`.
+ - `version` - the semver `version` value for your module from `package.json` (NOTE: ignores the `semver.build` property).
+ - `major`, `minor`, `patch`, and `prelease` match the individual semver values for your module's `version`
+ - `build` - the sevmer `build` value. For example it would be `this.that` if your package.json `version` was `v1.0.0+this.that`
+ - `prerelease` - the semver `prerelease` value. For example it would be `alpha.beta` if your package.json `version` was `v1.0.0-alpha.beta`
+
+
+The options are visible in the code at <https://github.com/mapbox/node-pre-gyp/blob/612b7bca2604508d881e1187614870ba19a7f0c5/lib/util/versioning.js#L114-L127>
+
+# Download binary files from a mirror
+
+S3 is broken in China for the well known reason.
+
+Using the `npm` config argument: `--{module_name}_binary_host_mirror` can download binary files through a mirror, `-` in `module_name` will be replaced with `_`.
+
+e.g.: Install [v8-profiler](https://www.npmjs.com/package/v8-profiler) from `npm`.
+
+```bash
+$ npm install v8-profiler --profiler_binary_host_mirror=https://npm.taobao.org/mirrors/node-inspector/
+```
+
+e.g.: Install [canvas-prebuilt](https://www.npmjs.com/package/canvas-prebuilt) from `npm`.
+
+```bash
+$ npm install canvas-prebuilt --canvas_prebuilt_binary_host_mirror=https://npm.taobao.org/mirrors/canvas-prebuilt/
+```
diff --git a/node_modules/@mapbox/node-pre-gyp/bin/node-pre-gyp b/node_modules/@mapbox/node-pre-gyp/bin/node-pre-gyp
new file mode 100644
index 0000000..c38d34d
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/bin/node-pre-gyp
@@ -0,0 +1,4 @@
+#!/usr/bin/env node
+'use strict';
+
+require('../lib/main');
diff --git a/node_modules/@mapbox/node-pre-gyp/bin/node-pre-gyp.cmd b/node_modules/@mapbox/node-pre-gyp/bin/node-pre-gyp.cmd
new file mode 100644
index 0000000..46e14b5
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/bin/node-pre-gyp.cmd
@@ -0,0 +1,2 @@
+@echo off
+node  "%~dp0\node-pre-gyp" %*
diff --git a/node_modules/@mapbox/node-pre-gyp/contributing.md b/node_modules/@mapbox/node-pre-gyp/contributing.md
new file mode 100644
index 0000000..4038fa6
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/contributing.md
@@ -0,0 +1,10 @@
+# Contributing
+
+
+### Releasing a new version:
+
+- Ensure tests are passing on travis and appveyor
+- Run `node scripts/abi_crosswalk.js` and commit any changes
+- Update the changelog
+- Tag a new release like: `git tag -a v0.6.34 -m "tagging v0.6.34" && git push --tags`
+- Run `npm publish`
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/build.js b/node_modules/@mapbox/node-pre-gyp/lib/build.js
new file mode 100644
index 0000000..e8a1459
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/build.js
@@ -0,0 +1,51 @@
+'use strict';
+
+module.exports = exports = build;
+
+exports.usage = 'Attempts to compile the module by dispatching to node-gyp or nw-gyp';
+
+const napi = require('./util/napi.js');
+const compile = require('./util/compile.js');
+const handle_gyp_opts = require('./util/handle_gyp_opts.js');
+const configure = require('./configure.js');
+
+function do_build(gyp, argv, callback) {
+  handle_gyp_opts(gyp, argv, (err, result) => {
+    let final_args = ['build'].concat(result.gyp).concat(result.pre);
+    if (result.unparsed.length > 0) {
+      final_args = final_args.
+        concat(['--']).
+        concat(result.unparsed);
+    }
+    if (!err && result.opts.napi_build_version) {
+      napi.swap_build_dir_in(result.opts.napi_build_version);
+    }
+    compile.run_gyp(final_args, result.opts, (err2) => {
+      if (result.opts.napi_build_version) {
+        napi.swap_build_dir_out(result.opts.napi_build_version);
+      }
+      return callback(err2);
+    });
+  });
+}
+
+function build(gyp, argv, callback) {
+
+  // Form up commands to pass to node-gyp:
+  // We map `node-pre-gyp build` to `node-gyp configure build` so that we do not
+  // trigger a clean and therefore do not pay the penalty of a full recompile
+  if (argv.length && (argv.indexOf('rebuild') > -1)) {
+    argv.shift(); // remove `rebuild`
+    // here we map `node-pre-gyp rebuild` to `node-gyp rebuild` which internally means
+    // "clean + configure + build" and triggers a full recompile
+    compile.run_gyp(['clean'], {}, (err3) => {
+      if (err3) return callback(err3);
+      configure(gyp, argv, (err4) => {
+        if (err4) return callback(err4);
+        return do_build(gyp, argv, callback);
+      });
+    });
+  } else {
+    return do_build(gyp, argv, callback);
+  }
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/clean.js b/node_modules/@mapbox/node-pre-gyp/lib/clean.js
new file mode 100644
index 0000000..e693392
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/clean.js
@@ -0,0 +1,31 @@
+'use strict';
+
+module.exports = exports = clean;
+
+exports.usage = 'Removes the entire folder containing the compiled .node module';
+
+const rm = require('rimraf');
+const exists = require('fs').exists || require('path').exists;
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+const path = require('path');
+
+function clean(gyp, argv, callback) {
+  const package_json = gyp.package_json;
+  const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+  const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+  const to_delete = opts.module_path;
+  if (!to_delete) {
+    return callback(new Error('module_path is empty, refusing to delete'));
+  } else if (path.normalize(to_delete) === path.normalize(process.cwd())) {
+    return callback(new Error('module_path is not set, refusing to delete'));
+  } else {
+    exists(to_delete, (found) => {
+      if (found) {
+        if (!gyp.opts.silent_clean) console.log('[' + package_json.name + '] Removing "%s"', to_delete);
+        return rm(to_delete, callback);
+      }
+      return callback();
+    });
+  }
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/configure.js b/node_modules/@mapbox/node-pre-gyp/lib/configure.js
new file mode 100644
index 0000000..1337c0c
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/configure.js
@@ -0,0 +1,52 @@
+'use strict';
+
+module.exports = exports = configure;
+
+exports.usage = 'Attempts to configure node-gyp or nw-gyp build';
+
+const napi = require('./util/napi.js');
+const compile = require('./util/compile.js');
+const handle_gyp_opts = require('./util/handle_gyp_opts.js');
+
+function configure(gyp, argv, callback) {
+  handle_gyp_opts(gyp, argv, (err, result) => {
+    let final_args = result.gyp.concat(result.pre);
+    // pull select node-gyp configure options out of the npm environ
+    const known_gyp_args = ['dist-url', 'python', 'nodedir', 'msvs_version'];
+    known_gyp_args.forEach((key) => {
+      const val = gyp.opts[key] || gyp.opts[key.replace('-', '_')];
+      if (val) {
+        final_args.push('--' + key + '=' + val);
+      }
+    });
+    // --ensure=false tell node-gyp to re-install node development headers
+    // but it is only respected by node-gyp install, so we have to call install
+    // as a separate step if the user passes it
+    if (gyp.opts.ensure === false) {
+      const install_args = final_args.concat(['install', '--ensure=false']);
+      compile.run_gyp(install_args, result.opts, (err2) => {
+        if (err2) return callback(err2);
+        if (result.unparsed.length > 0) {
+          final_args = final_args.
+            concat(['--']).
+            concat(result.unparsed);
+        }
+        compile.run_gyp(['configure'].concat(final_args), result.opts, (err3) => {
+          return callback(err3);
+        });
+      });
+    } else {
+      if (result.unparsed.length > 0) {
+        final_args = final_args.
+          concat(['--']).
+          concat(result.unparsed);
+      }
+      compile.run_gyp(['configure'].concat(final_args), result.opts, (err4) => {
+        if (!err4 && result.opts.napi_build_version) {
+          napi.swap_build_dir_out(result.opts.napi_build_version);
+        }
+        return callback(err4);
+      });
+    }
+  });
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/info.js b/node_modules/@mapbox/node-pre-gyp/lib/info.js
new file mode 100644
index 0000000..ba22f32
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/info.js
@@ -0,0 +1,38 @@
+'use strict';
+
+module.exports = exports = info;
+
+exports.usage = 'Lists all published binaries (requires aws-sdk)';
+
+const log = require('npmlog');
+const versioning = require('./util/versioning.js');
+const s3_setup = require('./util/s3_setup.js');
+
+function info(gyp, argv, callback) {
+  const package_json = gyp.package_json;
+  const opts = versioning.evaluate(package_json, gyp.opts);
+  const config = {};
+  s3_setup.detect(opts, config);
+  const s3 = s3_setup.get_s3(config);
+  const s3_opts = {
+    Bucket: config.bucket,
+    Prefix: config.prefix
+  };
+  s3.listObjects(s3_opts, (err, meta) => {
+    if (err && err.code === 'NotFound') {
+      return callback(new Error('[' + package_json.name + '] Not found: https://' + s3_opts.Bucket + '.s3.amazonaws.com/' + config.prefix));
+    } else if (err) {
+      return callback(err);
+    } else {
+      log.verbose(JSON.stringify(meta, null, 1));
+      if (meta && meta.Contents) {
+        meta.Contents.forEach((obj) => {
+          console.log(obj.Key);
+        });
+      } else {
+        console.error('[' + package_json.name + '] No objects found at https://' + s3_opts.Bucket + '.s3.amazonaws.com/' + config.prefix);
+      }
+      return callback();
+    }
+  });
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/install.js b/node_modules/@mapbox/node-pre-gyp/lib/install.js
new file mode 100644
index 0000000..617dd86
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/install.js
@@ -0,0 +1,235 @@
+'use strict';
+
+module.exports = exports = install;
+
+exports.usage = 'Attempts to install pre-built binary for module';
+
+const fs = require('fs');
+const path = require('path');
+const log = require('npmlog');
+const existsAsync = fs.exists || path.exists;
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+const makeDir = require('make-dir');
+// for fetching binaries
+const fetch = require('node-fetch');
+const tar = require('tar');
+
+let npgVersion = 'unknown';
+try {
+  // Read own package.json to get the current node-pre-pyp version.
+  const ownPackageJSON = fs.readFileSync(path.join(__dirname, '..', 'package.json'), 'utf8');
+  npgVersion = JSON.parse(ownPackageJSON).version;
+} catch (e) {
+  // do nothing
+}
+
+function place_binary(uri, targetDir, opts, callback) {
+  log.http('GET', uri);
+
+  // Try getting version info from the currently running npm.
+  const envVersionInfo = process.env.npm_config_user_agent ||
+        'node ' + process.version;
+
+  const sanitized = uri.replace('+', '%2B');
+  const requestOpts = {
+    uri: sanitized,
+    headers: {
+      'User-Agent': 'node-pre-gyp (v' + npgVersion + ', ' + envVersionInfo + ')'
+    },
+    follow_max: 10
+  };
+
+  if (opts.cafile) {
+    try {
+      requestOpts.ca = fs.readFileSync(opts.cafile);
+    } catch (e) {
+      return callback(e);
+    }
+  } else if (opts.ca) {
+    requestOpts.ca = opts.ca;
+  }
+
+  const proxyUrl = opts.proxy ||
+                    process.env.http_proxy ||
+                    process.env.HTTP_PROXY ||
+                    process.env.npm_config_proxy;
+  let agent;
+  if (proxyUrl) {
+    const ProxyAgent = require('https-proxy-agent');
+    agent = new ProxyAgent(proxyUrl);
+    log.http('download', 'proxy agent configured using: "%s"', proxyUrl);
+  }
+
+  fetch(sanitized, { agent })
+    .then((res) => {
+      if (!res.ok) {
+        throw new Error(`response status ${res.status} ${res.statusText} on ${sanitized}`);
+      }
+      const dataStream = res.body;
+
+      return new Promise((resolve, reject) => {
+        let extractions = 0;
+        const countExtractions = (entry) => {
+          extractions += 1;
+          log.info('install', 'unpacking %s', entry.path);
+        };
+
+        dataStream.pipe(extract(targetDir, countExtractions))
+          .on('error', (e) => {
+            reject(e);
+          });
+        dataStream.on('end', () => {
+          resolve(`extracted file count: ${extractions}`);
+        });
+        dataStream.on('error', (e) => {
+          reject(e);
+        });
+      });
+    })
+    .then((text) => {
+      log.info(text);
+      callback();
+    })
+    .catch((e) => {
+      log.error(`install ${e.message}`);
+      callback(e);
+    });
+}
+
+function extract(to, onentry) {
+  return tar.extract({
+    cwd: to,
+    strip: 1,
+    onentry
+  });
+}
+
+function extract_from_local(from, targetDir, callback) {
+  if (!fs.existsSync(from)) {
+    return callback(new Error('Cannot find file ' + from));
+  }
+  log.info('Found local file to extract from ' + from);
+
+  // extract helpers
+  let extractCount = 0;
+  function countExtractions(entry) {
+    extractCount += 1;
+    log.info('install', 'unpacking ' + entry.path);
+  }
+  function afterExtract(err) {
+    if (err) return callback(err);
+    if (extractCount === 0) {
+      return callback(new Error('There was a fatal problem while extracting the tarball'));
+    }
+    log.info('tarball', 'done parsing tarball');
+    callback();
+  }
+
+  fs.createReadStream(from).pipe(extract(targetDir, countExtractions))
+    .on('close', afterExtract)
+    .on('error', afterExtract);
+}
+
+function do_build(gyp, argv, callback) {
+  const args = ['rebuild'].concat(argv);
+  gyp.todo.push({ name: 'build', args: args });
+  process.nextTick(callback);
+}
+
+function print_fallback_error(err, opts, package_json) {
+  const fallback_message = ' (falling back to source compile with node-gyp)';
+  let full_message = '';
+  if (err.statusCode !== undefined) {
+    // If we got a network response it but failed to download
+    // it means remote binaries are not available, so let's try to help
+    // the user/developer with the info to debug why
+    full_message = 'Pre-built binaries not found for ' + package_json.name + '@' + package_json.version;
+    full_message += ' and ' + opts.runtime + '@' + (opts.target || process.versions.node) + ' (' + opts.node_abi + ' ABI, ' + opts.libc + ')';
+    full_message += fallback_message;
+    log.warn('Tried to download(' + err.statusCode + '): ' + opts.hosted_tarball);
+    log.warn(full_message);
+    log.http(err.message);
+  } else {
+    // If we do not have a statusCode that means an unexpected error
+    // happened and prevented an http response, so we output the exact error
+    full_message = 'Pre-built binaries not installable for ' + package_json.name + '@' + package_json.version;
+    full_message += ' and ' + opts.runtime + '@' + (opts.target || process.versions.node) + ' (' + opts.node_abi + ' ABI, ' + opts.libc + ')';
+    full_message += fallback_message;
+    log.warn(full_message);
+    log.warn('Hit error ' + err.message);
+  }
+}
+
+//
+// install
+//
+function install(gyp, argv, callback) {
+  const package_json = gyp.package_json;
+  const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+  const source_build = gyp.opts['build-from-source'] || gyp.opts.build_from_source;
+  const update_binary = gyp.opts['update-binary'] || gyp.opts.update_binary;
+  const should_do_source_build = source_build === package_json.name || (source_build === true || source_build === 'true');
+  if (should_do_source_build) {
+    log.info('build', 'requesting source compile');
+    return do_build(gyp, argv, callback);
+  } else {
+    const fallback_to_build = gyp.opts['fallback-to-build'] || gyp.opts.fallback_to_build;
+    let should_do_fallback_build = fallback_to_build === package_json.name || (fallback_to_build === true || fallback_to_build === 'true');
+    // but allow override from npm
+    if (process.env.npm_config_argv) {
+      const cooked = JSON.parse(process.env.npm_config_argv).cooked;
+      const match = cooked.indexOf('--fallback-to-build');
+      if (match > -1 && cooked.length > match && cooked[match + 1] === 'false') {
+        should_do_fallback_build = false;
+        log.info('install', 'Build fallback disabled via npm flag: --fallback-to-build=false');
+      }
+    }
+    let opts;
+    try {
+      opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+    } catch (err) {
+      return callback(err);
+    }
+
+    opts.ca = gyp.opts.ca;
+    opts.cafile = gyp.opts.cafile;
+
+    const from = opts.hosted_tarball;
+    const to = opts.module_path;
+    const binary_module = path.join(to, opts.module_name + '.node');
+    existsAsync(binary_module, (found) => {
+      if (!update_binary) {
+        if (found) {
+          console.log('[' + package_json.name + '] Success: "' + binary_module + '" already installed');
+          console.log('Pass --update-binary to reinstall or --build-from-source to recompile');
+          return callback();
+        }
+        log.info('check', 'checked for "' + binary_module + '" (not found)');
+      }
+
+      makeDir(to).then(() => {
+        const fileName = from.startsWith('file://') && from.slice('file://'.length);
+        if (fileName) {
+          extract_from_local(fileName, to, after_place);
+        } else {
+          place_binary(from, to, opts, after_place);
+        }
+      }).catch((err) => {
+        after_place(err);
+      });
+
+      function after_place(err) {
+        if (err && should_do_fallback_build) {
+          print_fallback_error(err, opts, package_json);
+          return do_build(gyp, argv, callback);
+        } else if (err) {
+          return callback(err);
+        } else {
+          console.log('[' + package_json.name + '] Success: "' + binary_module + '" is installed via remote');
+          return callback();
+        }
+      }
+    });
+  }
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/main.js b/node_modules/@mapbox/node-pre-gyp/lib/main.js
new file mode 100644
index 0000000..bae32ac
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/main.js
@@ -0,0 +1,125 @@
+'use strict';
+
+/**
+ * Set the title.
+ */
+
+process.title = 'node-pre-gyp';
+
+const node_pre_gyp = require('../');
+const log = require('npmlog');
+
+/**
+ * Process and execute the selected commands.
+ */
+
+const prog = new node_pre_gyp.Run({ argv: process.argv });
+let completed = false;
+
+if (prog.todo.length === 0) {
+  if (~process.argv.indexOf('-v') || ~process.argv.indexOf('--version')) {
+    console.log('v%s', prog.version);
+    process.exit(0);
+  } else if (~process.argv.indexOf('-h') || ~process.argv.indexOf('--help')) {
+    console.log('%s', prog.usage());
+    process.exit(0);
+  }
+  console.log('%s', prog.usage());
+  process.exit(1);
+}
+
+// if --no-color is passed
+if (prog.opts && Object.hasOwnProperty.call(prog, 'color') && !prog.opts.color) {
+  log.disableColor();
+}
+
+log.info('it worked if it ends with', 'ok');
+log.verbose('cli', process.argv);
+log.info('using', process.title + '@%s', prog.version);
+log.info('using', 'node@%s | %s | %s', process.versions.node, process.platform, process.arch);
+
+
+/**
+ * Change dir if -C/--directory was passed.
+ */
+
+const dir = prog.opts.directory;
+if (dir) {
+  const fs = require('fs');
+  try {
+    const stat = fs.statSync(dir);
+    if (stat.isDirectory()) {
+      log.info('chdir', dir);
+      process.chdir(dir);
+    } else {
+      log.warn('chdir', dir + ' is not a directory');
+    }
+  } catch (e) {
+    if (e.code === 'ENOENT') {
+      log.warn('chdir', dir + ' is not a directory');
+    } else {
+      log.warn('chdir', 'error during chdir() "%s"', e.message);
+    }
+  }
+}
+
+function run() {
+  const command = prog.todo.shift();
+  if (!command) {
+    // done!
+    completed = true;
+    log.info('ok');
+    return;
+  }
+
+  // set binary.host when appropriate. host determines the s3 target bucket.
+  const target = prog.setBinaryHostProperty(command.name);
+  if (target && ['install', 'publish', 'unpublish', 'info'].indexOf(command.name) >= 0) {
+    log.info('using binary.host: ' + prog.package_json.binary.host);
+  }
+
+  prog.commands[command.name](command.args, function(err) {
+    if (err) {
+      log.error(command.name + ' error');
+      log.error('stack', err.stack);
+      errorMessage();
+      log.error('not ok');
+      console.log(err.message);
+      return process.exit(1);
+    }
+    const args_array = [].slice.call(arguments, 1);
+    if (args_array.length) {
+      console.log.apply(console, args_array);
+    }
+    // now run the next command in the queue
+    process.nextTick(run);
+  });
+}
+
+process.on('exit', (code) => {
+  if (!completed && !code) {
+    log.error('Completion callback never invoked!');
+    errorMessage();
+    process.exit(6);
+  }
+});
+
+process.on('uncaughtException', (err) => {
+  log.error('UNCAUGHT EXCEPTION');
+  log.error('stack', err.stack);
+  errorMessage();
+  process.exit(7);
+});
+
+function errorMessage() {
+  // copied from npm's lib/util/error-handler.js
+  const os = require('os');
+  log.error('System', os.type() + ' ' + os.release());
+  log.error('command', process.argv.map(JSON.stringify).join(' '));
+  log.error('cwd', process.cwd());
+  log.error('node -v', process.version);
+  log.error(process.title + ' -v', 'v' + prog.package.version);
+}
+
+// start running the given commands!
+run();
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/node-pre-gyp.js b/node_modules/@mapbox/node-pre-gyp/lib/node-pre-gyp.js
new file mode 100644
index 0000000..dc18e74
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/node-pre-gyp.js
@@ -0,0 +1,309 @@
+'use strict';
+
+/**
+ * Module exports.
+ */
+
+module.exports = exports;
+
+/**
+ * Module dependencies.
+ */
+
+// load mocking control function for accessing s3 via https. the function is a noop always returning
+// false if not mocking.
+exports.mockS3Http = require('./util/s3_setup').get_mockS3Http();
+exports.mockS3Http('on');
+const mocking = exports.mockS3Http('get');
+
+
+const fs = require('fs');
+const path = require('path');
+const nopt = require('nopt');
+const log = require('npmlog');
+log.disableProgress();
+const napi = require('./util/napi.js');
+
+const EE = require('events').EventEmitter;
+const inherits = require('util').inherits;
+const cli_commands = [
+  'clean',
+  'install',
+  'reinstall',
+  'build',
+  'rebuild',
+  'package',
+  'testpackage',
+  'publish',
+  'unpublish',
+  'info',
+  'testbinary',
+  'reveal',
+  'configure'
+];
+const aliases = {};
+
+// differentiate node-pre-gyp's logs from npm's
+log.heading = 'node-pre-gyp';
+
+if (mocking) {
+  log.warn(`mocking s3 to ${process.env.node_pre_gyp_mock_s3}`);
+}
+
+// this is a getter to avoid circular reference warnings with node v14.
+Object.defineProperty(exports, 'find', {
+  get: function() {
+    return require('./pre-binding').find;
+  },
+  enumerable: true
+});
+
+// in the following, "my_module" is using node-pre-gyp to
+// prebuild and install pre-built binaries. "main_module"
+// is using "my_module".
+//
+// "bin/node-pre-gyp" invokes Run() without a path. the
+// expectation is that the working directory is the package
+// root "my_module". this is true because in all cases npm is
+// executing a script in the context of "my_module".
+//
+// "pre-binding.find()" is executed by "my_module" but in the
+// context of "main_module". this is because "main_module" is
+// executing and requires "my_module" which is then executing
+// "pre-binding.find()" via "node-pre-gyp.find()", so the working
+// directory is that of "main_module".
+//
+// that's why "find()" must pass the path to package.json.
+//
+function Run({ package_json_path = './package.json', argv }) {
+  this.package_json_path = package_json_path;
+  this.commands = {};
+
+  const self = this;
+  cli_commands.forEach((command) => {
+    self.commands[command] = function(argvx, callback) {
+      log.verbose('command', command, argvx);
+      return require('./' + command)(self, argvx, callback);
+    };
+  });
+
+  this.parseArgv(argv);
+
+  // this is set to true after the binary.host property was set to
+  // either staging_host or production_host.
+  this.binaryHostSet = false;
+}
+inherits(Run, EE);
+exports.Run = Run;
+const proto = Run.prototype;
+
+/**
+ * Export the contents of the package.json.
+ */
+
+proto.package = require('../package.json');
+
+/**
+ * nopt configuration definitions
+ */
+
+proto.configDefs = {
+  help: Boolean,     // everywhere
+  arch: String,      // 'configure'
+  debug: Boolean,    // 'build'
+  directory: String, // bin
+  proxy: String,     // 'install'
+  loglevel: String  // everywhere
+};
+
+/**
+ * nopt shorthands
+ */
+
+proto.shorthands = {
+  release: '--no-debug',
+  C: '--directory',
+  debug: '--debug',
+  j: '--jobs',
+  silent: '--loglevel=silent',
+  silly: '--loglevel=silly',
+  verbose: '--loglevel=verbose'
+};
+
+/**
+ * expose the command aliases for the bin file to use.
+ */
+
+proto.aliases = aliases;
+
+/**
+ * Parses the given argv array and sets the 'opts', 'argv',
+ * 'command', and 'package_json' properties.
+ */
+
+proto.parseArgv = function parseOpts(argv) {
+  this.opts = nopt(this.configDefs, this.shorthands, argv);
+  this.argv = this.opts.argv.remain.slice();
+  const commands = this.todo = [];
+
+  // create a copy of the argv array with aliases mapped
+  argv = this.argv.map((arg) => {
+    // is this an alias?
+    if (arg in this.aliases) {
+      arg = this.aliases[arg];
+    }
+    return arg;
+  });
+
+  // process the mapped args into "command" objects ("name" and "args" props)
+  argv.slice().forEach((arg) => {
+    if (arg in this.commands) {
+      const args = argv.splice(0, argv.indexOf(arg));
+      argv.shift();
+      if (commands.length > 0) {
+        commands[commands.length - 1].args = args;
+      }
+      commands.push({ name: arg, args: [] });
+    }
+  });
+  if (commands.length > 0) {
+    commands[commands.length - 1].args = argv.splice(0);
+  }
+
+
+  // if a directory was specified package.json is assumed to be relative
+  // to it.
+  let package_json_path = this.package_json_path;
+  if (this.opts.directory) {
+    package_json_path = path.join(this.opts.directory, package_json_path);
+  }
+
+  this.package_json = JSON.parse(fs.readFileSync(package_json_path));
+
+  // expand commands entries for multiple napi builds
+  this.todo = napi.expand_commands(this.package_json, this.opts, commands);
+
+  // support for inheriting config env variables from npm
+  const npm_config_prefix = 'npm_config_';
+  Object.keys(process.env).forEach((name) => {
+    if (name.indexOf(npm_config_prefix) !== 0) return;
+    const val = process.env[name];
+    if (name === npm_config_prefix + 'loglevel') {
+      log.level = val;
+    } else {
+      // add the user-defined options to the config
+      name = name.substring(npm_config_prefix.length);
+      // avoid npm argv clobber already present args
+      // which avoids problem of 'npm test' calling
+      // script that runs unique npm install commands
+      if (name === 'argv') {
+        if (this.opts.argv &&
+             this.opts.argv.remain &&
+             this.opts.argv.remain.length) {
+          // do nothing
+        } else {
+          this.opts[name] = val;
+        }
+      } else {
+        this.opts[name] = val;
+      }
+    }
+  });
+
+  if (this.opts.loglevel) {
+    log.level = this.opts.loglevel;
+  }
+  log.resume();
+};
+
+/**
+ * allow the binary.host property to be set at execution time.
+ *
+ * for this to take effect requires all the following to be true.
+ * - binary is a property in package.json
+ * - binary.host is falsey
+ * - binary.staging_host is not empty
+ * - binary.production_host is not empty
+ *
+ * if any of the previous checks fail then the function returns an empty string
+ * and makes no changes to package.json's binary property.
+ *
+ *
+ * if command is "publish" then the default is set to "binary.staging_host"
+ * if command is not "publish" the the default is set to "binary.production_host"
+ *
+ * if the command-line option '--s3_host' is set to "staging" or "production" then
+ * "binary.host" is set to the specified "staging_host" or "production_host". if
+ * '--s3_host' is any other value an exception is thrown.
+ *
+ * if '--s3_host' is not present then "binary.host" is set to the default as above.
+ *
+ * this strategy was chosen so that any command other than "publish" or "unpublish" uses "production"
+ * as the default without requiring any command-line options but that "publish" and "unpublish" require
+ * '--s3_host production_host' to be specified in order to *really* publish (or unpublish). publishing
+ * to staging can be done freely without worrying about disturbing any production releases.
+ */
+proto.setBinaryHostProperty = function(command) {
+  if (this.binaryHostSet) {
+    return this.package_json.binary.host;
+  }
+  const p = this.package_json;
+  // don't set anything if host is present. it must be left blank to trigger this.
+  if (!p || !p.binary || p.binary.host) {
+    return '';
+  }
+  // and both staging and production must be present. errors will be reported later.
+  if (!p.binary.staging_host || !p.binary.production_host) {
+    return '';
+  }
+  let target = 'production_host';
+  if (command === 'publish' || command === 'unpublish') {
+    target = 'staging_host';
+  }
+  // the environment variable has priority over the default or the command line. if
+  // either the env var or the command line option are invalid throw an error.
+  const npg_s3_host = process.env.node_pre_gyp_s3_host;
+  if (npg_s3_host === 'staging' || npg_s3_host === 'production') {
+    target = `${npg_s3_host}_host`;
+  } else if (this.opts['s3_host'] === 'staging' || this.opts['s3_host'] === 'production') {
+    target = `${this.opts['s3_host']}_host`;
+  } else if (this.opts['s3_host'] || npg_s3_host) {
+    throw new Error(`invalid s3_host ${this.opts['s3_host'] || npg_s3_host}`);
+  }
+
+  p.binary.host = p.binary[target];
+  this.binaryHostSet = true;
+
+  return p.binary.host;
+};
+
+/**
+ * Returns the usage instructions for node-pre-gyp.
+ */
+
+proto.usage = function usage() {
+  const str = [
+    '',
+    '  Usage: node-pre-gyp <command> [options]',
+    '',
+    '  where <command> is one of:',
+    cli_commands.map((c) => {
+      return '    - ' + c + ' - ' + require('./' + c).usage;
+    }).join('\n'),
+    '',
+    'node-pre-gyp@' + this.version + '  ' + path.resolve(__dirname, '..'),
+    'node@' + process.versions.node
+  ].join('\n');
+  return str;
+};
+
+/**
+ * Version number getter.
+ */
+
+Object.defineProperty(proto, 'version', {
+  get: function() {
+    return this.package.version;
+  },
+  enumerable: true
+});
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/package.js b/node_modules/@mapbox/node-pre-gyp/lib/package.js
new file mode 100644
index 0000000..0734984
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/package.js
@@ -0,0 +1,73 @@
+'use strict';
+
+module.exports = exports = _package;
+
+exports.usage = 'Packs binary (and enclosing directory) into locally staged tarball';
+
+const fs = require('fs');
+const path = require('path');
+const log = require('npmlog');
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+const existsAsync = fs.exists || path.exists;
+const makeDir = require('make-dir');
+const tar = require('tar');
+
+function readdirSync(dir) {
+  let list = [];
+  const files = fs.readdirSync(dir);
+
+  files.forEach((file) => {
+    const stats = fs.lstatSync(path.join(dir, file));
+    if (stats.isDirectory()) {
+      list = list.concat(readdirSync(path.join(dir, file)));
+    } else {
+      list.push(path.join(dir, file));
+    }
+  });
+  return list;
+}
+
+function _package(gyp, argv, callback) {
+  const package_json = gyp.package_json;
+  const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+  const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+  const from = opts.module_path;
+  const binary_module = path.join(from, opts.module_name + '.node');
+  existsAsync(binary_module, (found) => {
+    if (!found) {
+      return callback(new Error('Cannot package because ' + binary_module + ' missing: run `node-pre-gyp rebuild` first'));
+    }
+    const tarball = opts.staged_tarball;
+    const filter_func = function(entry) {
+      const basename = path.basename(entry);
+      if (basename.length && basename[0] !== '.') {
+        console.log('packing ' + entry);
+        return true;
+      } else {
+        console.log('skipping ' + entry);
+      }
+      return false;
+    };
+    makeDir(path.dirname(tarball)).then(() => {
+      let files = readdirSync(from);
+      const base = path.basename(from);
+      files = files.map((file) => {
+        return path.join(base, path.relative(from, file));
+      });
+      tar.create({
+        portable: false,
+        gzip: true,
+        filter: filter_func,
+        file: tarball,
+        cwd: path.dirname(from)
+      }, files, (err2) => {
+        if (err2)  console.error('[' + package_json.name + '] ' + err2.message);
+        else log.info('package', 'Binary staged at "' + tarball + '"');
+        return callback(err2);
+      });
+    }).catch((err) => {
+      return callback(err);
+    });
+  });
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/pre-binding.js b/node_modules/@mapbox/node-pre-gyp/lib/pre-binding.js
new file mode 100644
index 0000000..e110fe3
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/pre-binding.js
@@ -0,0 +1,34 @@
+'use strict';
+
+const npg = require('..');
+const versioning = require('../lib/util/versioning.js');
+const napi = require('../lib/util/napi.js');
+const existsSync = require('fs').existsSync || require('path').existsSync;
+const path = require('path');
+
+module.exports = exports;
+
+exports.usage = 'Finds the require path for the node-pre-gyp installed module';
+
+exports.validate = function(package_json, opts) {
+  versioning.validate_config(package_json, opts);
+};
+
+exports.find = function(package_json_path, opts) {
+  if (!existsSync(package_json_path)) {
+    throw new Error(package_json_path + 'does not exist');
+  }
+  const prog = new npg.Run({ package_json_path, argv: process.argv });
+  prog.setBinaryHostProperty();
+  const package_json = prog.package_json;
+
+  versioning.validate_config(package_json, opts);
+  let napi_build_version;
+  if (napi.get_napi_build_versions(package_json, opts)) {
+    napi_build_version = napi.get_best_napi_build_version(package_json, opts);
+  }
+  opts = opts || {};
+  if (!opts.module_root) opts.module_root = path.dirname(package_json_path);
+  const meta = versioning.evaluate(package_json, opts, napi_build_version);
+  return meta.module;
+};
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/publish.js b/node_modules/@mapbox/node-pre-gyp/lib/publish.js
new file mode 100644
index 0000000..8367b15
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/publish.js
@@ -0,0 +1,81 @@
+'use strict';
+
+module.exports = exports = publish;
+
+exports.usage = 'Publishes pre-built binary (requires aws-sdk)';
+
+const fs = require('fs');
+const path = require('path');
+const log = require('npmlog');
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+const s3_setup = require('./util/s3_setup.js');
+const existsAsync = fs.exists || path.exists;
+const url = require('url');
+
+function publish(gyp, argv, callback) {
+  const package_json = gyp.package_json;
+  const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+  const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+  const tarball = opts.staged_tarball;
+  existsAsync(tarball, (found) => {
+    if (!found) {
+      return callback(new Error('Cannot publish because ' + tarball + ' missing: run `node-pre-gyp package` first'));
+    }
+
+    log.info('publish', 'Detecting s3 credentials');
+    const config = {};
+    s3_setup.detect(opts, config);
+    const s3 = s3_setup.get_s3(config);
+
+    const key_name = url.resolve(config.prefix, opts.package_name);
+    const s3_opts = {
+      Bucket: config.bucket,
+      Key: key_name
+    };
+    log.info('publish', 'Authenticating with s3');
+    log.info('publish', config);
+
+    log.info('publish', 'Checking for existing binary at ' + opts.hosted_path);
+    s3.headObject(s3_opts, (err, meta) => {
+      if (meta) log.info('publish', JSON.stringify(meta));
+      if (err && err.code === 'NotFound') {
+        // we are safe to publish because
+        // the object does not already exist
+        log.info('publish', 'Preparing to put object');
+        const s3_put_opts = {
+          ACL: 'public-read',
+          Body: fs.createReadStream(tarball),
+          Key: key_name,
+          Bucket: config.bucket
+        };
+        log.info('publish', 'Putting object', s3_put_opts.ACL, s3_put_opts.Bucket, s3_put_opts.Key);
+        try {
+          s3.putObject(s3_put_opts, (err2, resp) => {
+            log.info('publish', 'returned from putting object');
+            if (err2) {
+              log.info('publish', 's3 putObject error: "' + err2 + '"');
+              return callback(err2);
+            }
+            if (resp) log.info('publish', 's3 putObject response: "' + JSON.stringify(resp) + '"');
+            log.info('publish', 'successfully put object');
+            console.log('[' + package_json.name + '] published to ' + opts.hosted_path);
+            return callback();
+          });
+        } catch (err3) {
+          log.info('publish', 's3 putObject error: "' + err3 + '"');
+          return callback(err3);
+        }
+      } else if (err) {
+        log.info('publish', 's3 headObject error: "' + err + '"');
+        return callback(err);
+      } else {
+        log.error('publish', 'Cannot publish over existing version');
+        log.error('publish', "Update the 'version' field in package.json and try again");
+        log.error('publish', 'If the previous version was published in error see:');
+        log.error('publish', '\t node-pre-gyp unpublish');
+        return callback(new Error('Failed publishing to ' + opts.hosted_path));
+      }
+    });
+  });
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/rebuild.js b/node_modules/@mapbox/node-pre-gyp/lib/rebuild.js
new file mode 100644
index 0000000..31510fb
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/rebuild.js
@@ -0,0 +1,20 @@
+'use strict';
+
+module.exports = exports = rebuild;
+
+exports.usage = 'Runs "clean" and "build" at once';
+
+const napi = require('./util/napi.js');
+
+function rebuild(gyp, argv, callback) {
+  const package_json = gyp.package_json;
+  let commands = [
+    { name: 'clean', args: [] },
+    { name: 'build', args: ['rebuild'] }
+  ];
+  commands = napi.expand_commands(package_json, gyp.opts, commands);
+  for (let i = commands.length; i !== 0; i--) {
+    gyp.todo.unshift(commands[i - 1]);
+  }
+  process.nextTick(callback);
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/reinstall.js b/node_modules/@mapbox/node-pre-gyp/lib/reinstall.js
new file mode 100644
index 0000000..a29b5c9
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/reinstall.js
@@ -0,0 +1,19 @@
+'use strict';
+
+module.exports = exports = rebuild;
+
+exports.usage = 'Runs "clean" and "install" at once';
+
+const napi = require('./util/napi.js');
+
+function rebuild(gyp, argv, callback) {
+  const package_json = gyp.package_json;
+  let installArgs = [];
+  const napi_build_version = napi.get_best_napi_build_version(package_json, gyp.opts);
+  if (napi_build_version != null) installArgs = [napi.get_command_arg(napi_build_version)];
+  gyp.todo.unshift(
+    { name: 'clean', args: [] },
+    { name: 'install', args: installArgs }
+  );
+  process.nextTick(callback);
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/reveal.js b/node_modules/@mapbox/node-pre-gyp/lib/reveal.js
new file mode 100644
index 0000000..7255e5f
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/reveal.js
@@ -0,0 +1,32 @@
+'use strict';
+
+module.exports = exports = reveal;
+
+exports.usage = 'Reveals data on the versioned binary';
+
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+
+function unix_paths(key, val) {
+  return val && val.replace ? val.replace(/\\/g, '/') : val;
+}
+
+function reveal(gyp, argv, callback) {
+  const package_json = gyp.package_json;
+  const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+  const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+  let hit = false;
+  // if a second arg is passed look to see
+  // if it is a known option
+  // console.log(JSON.stringify(gyp.opts,null,1))
+  const remain = gyp.opts.argv.remain[gyp.opts.argv.remain.length - 1];
+  if (remain && Object.hasOwnProperty.call(opts, remain)) {
+    console.log(opts[remain].replace(/\\/g, '/'));
+    hit = true;
+  }
+  // otherwise return all options as json
+  if (!hit) {
+    console.log(JSON.stringify(opts, unix_paths, 2));
+  }
+  return callback();
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/testbinary.js b/node_modules/@mapbox/node-pre-gyp/lib/testbinary.js
new file mode 100644
index 0000000..429cb13
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/testbinary.js
@@ -0,0 +1,79 @@
+'use strict';
+
+module.exports = exports = testbinary;
+
+exports.usage = 'Tests that the binary.node can be required';
+
+const path = require('path');
+const log = require('npmlog');
+const cp = require('child_process');
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+
+function testbinary(gyp, argv, callback) {
+  const args = [];
+  const options = {};
+  let shell_cmd = process.execPath;
+  const package_json = gyp.package_json;
+  const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+  const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+  // skip validation for runtimes we don't explicitly support (like electron)
+  if (opts.runtime &&
+        opts.runtime !== 'node-webkit' &&
+        opts.runtime !== 'node') {
+    return callback();
+  }
+  const nw = (opts.runtime && opts.runtime === 'node-webkit');
+  // ensure on windows that / are used for require path
+  const binary_module = opts.module.replace(/\\/g, '/');
+  if ((process.arch !== opts.target_arch) ||
+        (process.platform !== opts.target_platform)) {
+    let msg = 'skipping validation since host platform/arch (';
+    msg += process.platform + '/' + process.arch + ')';
+    msg += ' does not match target (';
+    msg += opts.target_platform + '/' + opts.target_arch + ')';
+    log.info('validate', msg);
+    return callback();
+  }
+  if (nw) {
+    options.timeout = 5000;
+    if (process.platform === 'darwin') {
+      shell_cmd = 'node-webkit';
+    } else if (process.platform === 'win32') {
+      shell_cmd = 'nw.exe';
+    } else {
+      shell_cmd = 'nw';
+    }
+    const modulePath = path.resolve(binary_module);
+    const appDir = path.join(__dirname, 'util', 'nw-pre-gyp');
+    args.push(appDir);
+    args.push(modulePath);
+    log.info('validate', "Running test command: '" + shell_cmd + ' ' + args.join(' ') + "'");
+    cp.execFile(shell_cmd, args, options, (err, stdout, stderr) => {
+      // check for normal timeout for node-webkit
+      if (err) {
+        if (err.killed === true && err.signal && err.signal.indexOf('SIG') > -1) {
+          return callback();
+        }
+        const stderrLog = stderr.toString();
+        log.info('stderr', stderrLog);
+        if (/^\s*Xlib:\s*extension\s*"RANDR"\s*missing\s*on\s*display\s*":\d+\.\d+"\.\s*$/.test(stderrLog)) {
+          log.info('RANDR', 'stderr contains only RANDR error, ignored');
+          return callback();
+        }
+        return callback(err);
+      }
+      return callback();
+    });
+    return;
+  }
+  args.push('--eval');
+  args.push("require('" + binary_module.replace(/'/g, '\'') + "')");
+  log.info('validate', "Running test command: '" + shell_cmd + ' ' + args.join(' ') + "'");
+  cp.execFile(shell_cmd, args, options, (err, stdout, stderr) => {
+    if (err) {
+      return callback(err, { stdout: stdout, stderr: stderr });
+    }
+    return callback();
+  });
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/testpackage.js b/node_modules/@mapbox/node-pre-gyp/lib/testpackage.js
new file mode 100644
index 0000000..fab1911
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/testpackage.js
@@ -0,0 +1,53 @@
+'use strict';
+
+module.exports = exports = testpackage;
+
+exports.usage = 'Tests that the staged package is valid';
+
+const fs = require('fs');
+const path = require('path');
+const log = require('npmlog');
+const existsAsync = fs.exists || path.exists;
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+const testbinary = require('./testbinary.js');
+const tar = require('tar');
+const makeDir = require('make-dir');
+
+function testpackage(gyp, argv, callback) {
+  const package_json = gyp.package_json;
+  const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+  const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+  const tarball = opts.staged_tarball;
+  existsAsync(tarball, (found) => {
+    if (!found) {
+      return callback(new Error('Cannot test package because ' + tarball + ' missing: run `node-pre-gyp package` first'));
+    }
+    const to = opts.module_path;
+    function filter_func(entry) {
+      log.info('install', 'unpacking [' + entry.path + ']');
+    }
+
+    makeDir(to).then(() => {
+      tar.extract({
+        file: tarball,
+        cwd: to,
+        strip: 1,
+        onentry: filter_func
+      }).then(after_extract, callback);
+    }).catch((err) => {
+      return callback(err);
+    });
+
+    function after_extract() {
+      testbinary(gyp, argv, (err) => {
+        if (err) {
+          return callback(err);
+        } else {
+          console.log('[' + package_json.name + '] Package appears valid');
+          return callback();
+        }
+      });
+    }
+  });
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/unpublish.js b/node_modules/@mapbox/node-pre-gyp/lib/unpublish.js
new file mode 100644
index 0000000..12c9f56
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/unpublish.js
@@ -0,0 +1,41 @@
+'use strict';
+
+module.exports = exports = unpublish;
+
+exports.usage = 'Unpublishes pre-built binary (requires aws-sdk)';
+
+const log = require('npmlog');
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+const s3_setup = require('./util/s3_setup.js');
+const url = require('url');
+
+function unpublish(gyp, argv, callback) {
+  const package_json = gyp.package_json;
+  const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+  const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+  const config = {};
+  s3_setup.detect(opts, config);
+  const s3 = s3_setup.get_s3(config);
+  const key_name = url.resolve(config.prefix, opts.package_name);
+  const s3_opts = {
+    Bucket: config.bucket,
+    Key: key_name
+  };
+  s3.headObject(s3_opts, (err, meta) => {
+    if (err && err.code === 'NotFound') {
+      console.log('[' + package_json.name + '] Not found: https://' + s3_opts.Bucket + '.s3.amazonaws.com/' + s3_opts.Key);
+      return callback();
+    } else if (err) {
+      return callback(err);
+    } else {
+      log.info('unpublish', JSON.stringify(meta));
+      s3.deleteObject(s3_opts, (err2, resp) => {
+        if (err2) return callback(err2);
+        log.info(JSON.stringify(resp));
+        console.log('[' + package_json.name + '] Success: removed https://' + s3_opts.Bucket + '.s3.amazonaws.com/' + s3_opts.Key);
+        return callback();
+      });
+    }
+  });
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/util/abi_crosswalk.json b/node_modules/@mapbox/node-pre-gyp/lib/util/abi_crosswalk.json
new file mode 100644
index 0000000..7f52972
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/util/abi_crosswalk.json
@@ -0,0 +1,2602 @@
+{
+  "0.1.14": {
+    "node_abi": null,
+    "v8": "1.3"
+  },
+  "0.1.15": {
+    "node_abi": null,
+    "v8": "1.3"
+  },
+  "0.1.16": {
+    "node_abi": null,
+    "v8": "1.3"
+  },
+  "0.1.17": {
+    "node_abi": null,
+    "v8": "1.3"
+  },
+  "0.1.18": {
+    "node_abi": null,
+    "v8": "1.3"
+  },
+  "0.1.19": {
+    "node_abi": null,
+    "v8": "2.0"
+  },
+  "0.1.20": {
+    "node_abi": null,
+    "v8": "2.0"
+  },
+  "0.1.21": {
+    "node_abi": null,
+    "v8": "2.0"
+  },
+  "0.1.22": {
+    "node_abi": null,
+    "v8": "2.0"
+  },
+  "0.1.23": {
+    "node_abi": null,
+    "v8": "2.0"
+  },
+  "0.1.24": {
+    "node_abi": null,
+    "v8": "2.0"
+  },
+  "0.1.25": {
+    "node_abi": null,
+    "v8": "2.0"
+  },
+  "0.1.26": {
+    "node_abi": null,
+    "v8": "2.0"
+  },
+  "0.1.27": {
+    "node_abi": null,
+    "v8": "2.1"
+  },
+  "0.1.28": {
+    "node_abi": null,
+    "v8": "2.1"
+  },
+  "0.1.29": {
+    "node_abi": null,
+    "v8": "2.1"
+  },
+  "0.1.30": {
+    "node_abi": null,
+    "v8": "2.1"
+  },
+  "0.1.31": {
+    "node_abi": null,
+    "v8": "2.1"
+  },
+  "0.1.32": {
+    "node_abi": null,
+    "v8": "2.1"
+  },
+  "0.1.33": {
+    "node_abi": null,
+    "v8": "2.1"
+  },
+  "0.1.90": {
+    "node_abi": null,
+    "v8": "2.2"
+  },
+  "0.1.91": {
+    "node_abi": null,
+    "v8": "2.2"
+  },
+  "0.1.92": {
+    "node_abi": null,
+    "v8": "2.2"
+  },
+  "0.1.93": {
+    "node_abi": null,
+    "v8": "2.2"
+  },
+  "0.1.94": {
+    "node_abi": null,
+    "v8": "2.2"
+  },
+  "0.1.95": {
+    "node_abi": null,
+    "v8": "2.2"
+  },
+  "0.1.96": {
+    "node_abi": null,
+    "v8": "2.2"
+  },
+  "0.1.97": {
+    "node_abi": null,
+    "v8": "2.2"
+  },
+  "0.1.98": {
+    "node_abi": null,
+    "v8": "2.2"
+  },
+  "0.1.99": {
+    "node_abi": null,
+    "v8": "2.2"
+  },
+  "0.1.100": {
+    "node_abi": null,
+    "v8": "2.2"
+  },
+  "0.1.101": {
+    "node_abi": null,
+    "v8": "2.3"
+  },
+  "0.1.102": {
+    "node_abi": null,
+    "v8": "2.3"
+  },
+  "0.1.103": {
+    "node_abi": null,
+    "v8": "2.3"
+  },
+  "0.1.104": {
+    "node_abi": null,
+    "v8": "2.3"
+  },
+  "0.2.0": {
+    "node_abi": 1,
+    "v8": "2.3"
+  },
+  "0.2.1": {
+    "node_abi": 1,
+    "v8": "2.3"
+  },
+  "0.2.2": {
+    "node_abi": 1,
+    "v8": "2.3"
+  },
+  "0.2.3": {
+    "node_abi": 1,
+    "v8": "2.3"
+  },
+  "0.2.4": {
+    "node_abi": 1,
+    "v8": "2.3"
+  },
+  "0.2.5": {
+    "node_abi": 1,
+    "v8": "2.3"
+  },
+  "0.2.6": {
+    "node_abi": 1,
+    "v8": "2.3"
+  },
+  "0.3.0": {
+    "node_abi": 1,
+    "v8": "2.5"
+  },
+  "0.3.1": {
+    "node_abi": 1,
+    "v8": "2.5"
+  },
+  "0.3.2": {
+    "node_abi": 1,
+    "v8": "3.0"
+  },
+  "0.3.3": {
+    "node_abi": 1,
+    "v8": "3.0"
+  },
+  "0.3.4": {
+    "node_abi": 1,
+    "v8": "3.0"
+  },
+  "0.3.5": {
+    "node_abi": 1,
+    "v8": "3.0"
+  },
+  "0.3.6": {
+    "node_abi": 1,
+    "v8": "3.0"
+  },
+  "0.3.7": {
+    "node_abi": 1,
+    "v8": "3.0"
+  },
+  "0.3.8": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.4.0": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.4.1": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.4.2": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.4.3": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.4.4": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.4.5": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.4.6": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.4.7": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.4.8": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.4.9": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.4.10": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.4.11": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.4.12": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.5.0": {
+    "node_abi": 1,
+    "v8": "3.1"
+  },
+  "0.5.1": {
+    "node_abi": 1,
+    "v8": "3.4"
+  },
+  "0.5.2": {
+    "node_abi": 1,
+    "v8": "3.4"
+  },
+  "0.5.3": {
+    "node_abi": 1,
+    "v8": "3.4"
+  },
+  "0.5.4": {
+    "node_abi": 1,
+    "v8": "3.5"
+  },
+  "0.5.5": {
+    "node_abi": 1,
+    "v8": "3.5"
+  },
+  "0.5.6": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.5.7": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.5.8": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.5.9": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.5.10": {
+    "node_abi": 1,
+    "v8": "3.7"
+  },
+  "0.6.0": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.1": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.2": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.3": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.4": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.5": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.6": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.7": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.8": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.9": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.10": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.11": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.12": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.13": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.14": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.15": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.16": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.17": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.18": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.19": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.20": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.6.21": {
+    "node_abi": 1,
+    "v8": "3.6"
+  },
+  "0.7.0": {
+    "node_abi": 1,
+    "v8": "3.8"
+  },
+  "0.7.1": {
+    "node_abi": 1,
+    "v8": "3.8"
+  },
+  "0.7.2": {
+    "node_abi": 1,
+    "v8": "3.8"
+  },
+  "0.7.3": {
+    "node_abi": 1,
+    "v8": "3.9"
+  },
+  "0.7.4": {
+    "node_abi": 1,
+    "v8": "3.9"
+  },
+  "0.7.5": {
+    "node_abi": 1,
+    "v8": "3.9"
+  },
+  "0.7.6": {
+    "node_abi": 1,
+    "v8": "3.9"
+  },
+  "0.7.7": {
+    "node_abi": 1,
+    "v8": "3.9"
+  },
+  "0.7.8": {
+    "node_abi": 1,
+    "v8": "3.9"
+  },
+  "0.7.9": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.7.10": {
+    "node_abi": 1,
+    "v8": "3.9"
+  },
+  "0.7.11": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.7.12": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.0": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.1": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.2": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.3": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.4": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.5": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.6": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.7": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.8": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.9": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.10": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.11": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.12": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.13": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.14": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.15": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.16": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.17": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.18": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.19": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.20": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.21": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.22": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.23": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.24": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.25": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.26": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.27": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.8.28": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.9.0": {
+    "node_abi": 1,
+    "v8": "3.11"
+  },
+  "0.9.1": {
+    "node_abi": 10,
+    "v8": "3.11"
+  },
+  "0.9.2": {
+    "node_abi": 10,
+    "v8": "3.11"
+  },
+  "0.9.3": {
+    "node_abi": 10,
+    "v8": "3.13"
+  },
+  "0.9.4": {
+    "node_abi": 10,
+    "v8": "3.13"
+  },
+  "0.9.5": {
+    "node_abi": 10,
+    "v8": "3.13"
+  },
+  "0.9.6": {
+    "node_abi": 10,
+    "v8": "3.15"
+  },
+  "0.9.7": {
+    "node_abi": 10,
+    "v8": "3.15"
+  },
+  "0.9.8": {
+    "node_abi": 10,
+    "v8": "3.15"
+  },
+  "0.9.9": {
+    "node_abi": 11,
+    "v8": "3.15"
+  },
+  "0.9.10": {
+    "node_abi": 11,
+    "v8": "3.15"
+  },
+  "0.9.11": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.9.12": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.0": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.1": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.2": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.3": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.4": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.5": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.6": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.7": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.8": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.9": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.10": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.11": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.12": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.13": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.14": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.15": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.16": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.17": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.18": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.19": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.20": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.21": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.22": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.23": {
+    "node_abi": 11,
+    "v8": "3.14"
+  },
+  "0.10.24": {
+    "node_abi": 11,
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+    "v8": "8.1"
+  },
+  "14.1.0": {
+    "node_abi": 83,
+    "v8": "8.1"
+  },
+  "14.2.0": {
+    "node_abi": 83,
+    "v8": "8.1"
+  },
+  "14.3.0": {
+    "node_abi": 83,
+    "v8": "8.1"
+  },
+  "14.4.0": {
+    "node_abi": 83,
+    "v8": "8.1"
+  },
+  "14.5.0": {
+    "node_abi": 83,
+    "v8": "8.3"
+  },
+  "14.6.0": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.7.0": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.8.0": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.9.0": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.10.0": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.10.1": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.11.0": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.12.0": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.13.0": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.13.1": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.14.0": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.15.0": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.15.1": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.15.2": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.15.3": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.15.4": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.15.5": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.16.0": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.16.1": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.17.0": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.17.1": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.17.2": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.17.3": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.17.4": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.17.5": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.17.6": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.18.0": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "14.18.1": {
+    "node_abi": 83,
+    "v8": "8.4"
+  },
+  "15.0.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.0.1": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.1.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.2.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.2.1": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.3.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.4.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.5.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.5.1": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.6.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.7.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.8.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.9.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.10.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.11.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.12.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.13.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "15.14.0": {
+    "node_abi": 88,
+    "v8": "8.6"
+  },
+  "16.0.0": {
+    "node_abi": 93,
+    "v8": "9.0"
+  },
+  "16.1.0": {
+    "node_abi": 93,
+    "v8": "9.0"
+  },
+  "16.2.0": {
+    "node_abi": 93,
+    "v8": "9.0"
+  },
+  "16.3.0": {
+    "node_abi": 93,
+    "v8": "9.0"
+  },
+  "16.4.0": {
+    "node_abi": 93,
+    "v8": "9.1"
+  },
+  "16.4.1": {
+    "node_abi": 93,
+    "v8": "9.1"
+  },
+  "16.4.2": {
+    "node_abi": 93,
+    "v8": "9.1"
+  },
+  "16.5.0": {
+    "node_abi": 93,
+    "v8": "9.1"
+  },
+  "16.6.0": {
+    "node_abi": 93,
+    "v8": "9.2"
+  },
+  "16.6.1": {
+    "node_abi": 93,
+    "v8": "9.2"
+  },
+  "16.6.2": {
+    "node_abi": 93,
+    "v8": "9.2"
+  },
+  "16.7.0": {
+    "node_abi": 93,
+    "v8": "9.2"
+  },
+  "16.8.0": {
+    "node_abi": 93,
+    "v8": "9.2"
+  },
+  "16.9.0": {
+    "node_abi": 93,
+    "v8": "9.3"
+  },
+  "16.9.1": {
+    "node_abi": 93,
+    "v8": "9.3"
+  },
+  "16.10.0": {
+    "node_abi": 93,
+    "v8": "9.3"
+  },
+  "16.11.0": {
+    "node_abi": 93,
+    "v8": "9.4"
+  },
+  "16.11.1": {
+    "node_abi": 93,
+    "v8": "9.4"
+  },
+  "16.12.0": {
+    "node_abi": 93,
+    "v8": "9.4"
+  },
+  "16.13.0": {
+    "node_abi": 93,
+    "v8": "9.4"
+  },
+  "17.0.0": {
+    "node_abi": 102,
+    "v8": "9.5"
+  },
+  "17.0.1": {
+    "node_abi": 102,
+    "v8": "9.5"
+  },
+  "17.1.0": {
+    "node_abi": 102,
+    "v8": "9.5"
+  }
+}
\ No newline at end of file
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/util/compile.js b/node_modules/@mapbox/node-pre-gyp/lib/util/compile.js
new file mode 100644
index 0000000..956e5aa
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/util/compile.js
@@ -0,0 +1,93 @@
+'use strict';
+
+module.exports = exports;
+
+const fs = require('fs');
+const path = require('path');
+const win = process.platform === 'win32';
+const existsSync = fs.existsSync || path.existsSync;
+const cp = require('child_process');
+
+// try to build up the complete path to node-gyp
+/* priority:
+  - node-gyp on ENV:npm_config_node_gyp (https://github.com/npm/npm/pull/4887)
+  - node-gyp on NODE_PATH
+  - node-gyp inside npm on NODE_PATH (ignore on iojs)
+  - node-gyp inside npm beside node exe
+*/
+function which_node_gyp() {
+  let node_gyp_bin;
+  if (process.env.npm_config_node_gyp) {
+    try {
+      node_gyp_bin = process.env.npm_config_node_gyp;
+      if (existsSync(node_gyp_bin)) {
+        return node_gyp_bin;
+      }
+    } catch (err) {
+      // do nothing
+    }
+  }
+  try {
+    const node_gyp_main = require.resolve('node-gyp'); // eslint-disable-line node/no-missing-require
+    node_gyp_bin = path.join(path.dirname(
+      path.dirname(node_gyp_main)),
+    'bin/node-gyp.js');
+    if (existsSync(node_gyp_bin)) {
+      return node_gyp_bin;
+    }
+  } catch (err) {
+    // do nothing
+  }
+  if (process.execPath.indexOf('iojs') === -1) {
+    try {
+      const npm_main = require.resolve('npm'); // eslint-disable-line node/no-missing-require
+      node_gyp_bin = path.join(path.dirname(
+        path.dirname(npm_main)),
+      'node_modules/node-gyp/bin/node-gyp.js');
+      if (existsSync(node_gyp_bin)) {
+        return node_gyp_bin;
+      }
+    } catch (err) {
+      // do nothing
+    }
+  }
+  const npm_base = path.join(path.dirname(
+    path.dirname(process.execPath)),
+  'lib/node_modules/npm/');
+  node_gyp_bin = path.join(npm_base, 'node_modules/node-gyp/bin/node-gyp.js');
+  if (existsSync(node_gyp_bin)) {
+    return node_gyp_bin;
+  }
+}
+
+module.exports.run_gyp = function(args, opts, callback) {
+  let shell_cmd = '';
+  const cmd_args = [];
+  if (opts.runtime && opts.runtime === 'node-webkit') {
+    shell_cmd = 'nw-gyp';
+    if (win) shell_cmd += '.cmd';
+  } else {
+    const node_gyp_path = which_node_gyp();
+    if (node_gyp_path) {
+      shell_cmd = process.execPath;
+      cmd_args.push(node_gyp_path);
+    } else {
+      shell_cmd = 'node-gyp';
+      if (win) shell_cmd += '.cmd';
+    }
+  }
+  const final_args = cmd_args.concat(args);
+  const cmd = cp.spawn(shell_cmd, final_args, { cwd: undefined, env: process.env, stdio: [0, 1, 2] });
+  cmd.on('error', (err) => {
+    if (err) {
+      return callback(new Error("Failed to execute '" + shell_cmd + ' ' + final_args.join(' ') + "' (" + err + ')'));
+    }
+    callback(null, opts);
+  });
+  cmd.on('close', (code) => {
+    if (code && code !== 0) {
+      return callback(new Error("Failed to execute '" + shell_cmd + ' ' + final_args.join(' ') + "' (" + code + ')'));
+    }
+    callback(null, opts);
+  });
+};
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/util/handle_gyp_opts.js b/node_modules/@mapbox/node-pre-gyp/lib/util/handle_gyp_opts.js
new file mode 100644
index 0000000..d702f78
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/util/handle_gyp_opts.js
@@ -0,0 +1,102 @@
+'use strict';
+
+module.exports = exports = handle_gyp_opts;
+
+const versioning = require('./versioning.js');
+const napi = require('./napi.js');
+
+/*
+
+Here we gather node-pre-gyp generated options (from versioning) and pass them along to node-gyp.
+
+We massage the args and options slightly to account for differences in what commands mean between
+node-pre-gyp and node-gyp (e.g. see the difference between "build" and "rebuild" below)
+
+Keep in mind: the values inside `argv` and `gyp.opts` below are different depending on whether
+node-pre-gyp is called directory, or if it is called in a `run-script` phase of npm.
+
+We also try to preserve any command line options that might have been passed to npm or node-pre-gyp.
+But this is fairly difficult without passing way to much through. For example `gyp.opts` contains all
+the process.env and npm pushes a lot of variables into process.env which node-pre-gyp inherits. So we have
+to be very selective about what we pass through.
+
+For example:
+
+`npm install --build-from-source` will give:
+
+argv == [ 'rebuild' ]
+gyp.opts.argv == { remain: [ 'install' ],
+  cooked: [ 'install', '--fallback-to-build' ],
+  original: [ 'install', '--fallback-to-build' ] }
+
+`./bin/node-pre-gyp build` will give:
+
+argv == []
+gyp.opts.argv == { remain: [ 'build' ],
+  cooked: [ 'build' ],
+  original: [ '-C', 'test/app1', 'build' ] }
+
+*/
+
+// select set of node-pre-gyp versioning info
+// to share with node-gyp
+const share_with_node_gyp = [
+  'module',
+  'module_name',
+  'module_path',
+  'napi_version',
+  'node_abi_napi',
+  'napi_build_version',
+  'node_napi_label'
+];
+
+function handle_gyp_opts(gyp, argv, callback) {
+
+  // Collect node-pre-gyp specific variables to pass to node-gyp
+  const node_pre_gyp_options = [];
+  // generate custom node-pre-gyp versioning info
+  const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+  const opts = versioning.evaluate(gyp.package_json, gyp.opts, napi_build_version);
+  share_with_node_gyp.forEach((key) => {
+    const val = opts[key];
+    if (val) {
+      node_pre_gyp_options.push('--' + key + '=' + val);
+    } else if (key === 'napi_build_version') {
+      node_pre_gyp_options.push('--' + key + '=0');
+    } else {
+      if (key !== 'napi_version' && key !== 'node_abi_napi')
+        return callback(new Error('Option ' + key + ' required but not found by node-pre-gyp'));
+    }
+  });
+
+  // Collect options that follow the special -- which disables nopt parsing
+  const unparsed_options = [];
+  let double_hyphen_found = false;
+  gyp.opts.argv.original.forEach((opt) => {
+    if (double_hyphen_found) {
+      unparsed_options.push(opt);
+    }
+    if (opt === '--') {
+      double_hyphen_found = true;
+    }
+  });
+
+  // We try respect and pass through remaining command
+  // line options (like --foo=bar) to node-gyp
+  const cooked = gyp.opts.argv.cooked;
+  const node_gyp_options = [];
+  cooked.forEach((value) => {
+    if (value.length > 2 && value.slice(0, 2) === '--') {
+      const key = value.slice(2);
+      const val = cooked[cooked.indexOf(value) + 1];
+      if (val && val.indexOf('--') === -1) { // handle '--foo=bar' or ['--foo','bar']
+        node_gyp_options.push('--' + key + '=' + val);
+      } else { // pass through --foo
+        node_gyp_options.push(value);
+      }
+    }
+  });
+
+  const result = { 'opts': opts, 'gyp': node_gyp_options, 'pre': node_pre_gyp_options, 'unparsed': unparsed_options };
+  return callback(null, result);
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/util/napi.js b/node_modules/@mapbox/node-pre-gyp/lib/util/napi.js
new file mode 100644
index 0000000..5d14ad6
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/util/napi.js
@@ -0,0 +1,205 @@
+'use strict';
+
+const fs = require('fs');
+
+module.exports = exports;
+
+const versionArray = process.version
+  .substr(1)
+  .replace(/-.*$/, '')
+  .split('.')
+  .map((item) => {
+    return +item;
+  });
+
+const napi_multiple_commands = [
+  'build',
+  'clean',
+  'configure',
+  'package',
+  'publish',
+  'reveal',
+  'testbinary',
+  'testpackage',
+  'unpublish'
+];
+
+const napi_build_version_tag = 'napi_build_version=';
+
+module.exports.get_napi_version = function() {
+  // returns the non-zero numeric napi version or undefined if napi is not supported.
+  // correctly supporting target requires an updated cross-walk
+  let version = process.versions.napi; // can be undefined
+  if (!version) { // this code should never need to be updated
+    if (versionArray[0] === 9 && versionArray[1] >= 3) version = 2; // 9.3.0+
+    else if (versionArray[0] === 8) version = 1; // 8.0.0+
+  }
+  return version;
+};
+
+module.exports.get_napi_version_as_string = function(target) {
+  // returns the napi version as a string or an empty string if napi is not supported.
+  const version = module.exports.get_napi_version(target);
+  return version ? '' + version : '';
+};
+
+module.exports.validate_package_json = function(package_json, opts) { // throws Error
+
+  const binary = package_json.binary;
+  const module_path_ok = pathOK(binary.module_path);
+  const remote_path_ok = pathOK(binary.remote_path);
+  const package_name_ok = pathOK(binary.package_name);
+  const napi_build_versions = module.exports.get_napi_build_versions(package_json, opts, true);
+  const napi_build_versions_raw = module.exports.get_napi_build_versions_raw(package_json);
+
+  if (napi_build_versions) {
+    napi_build_versions.forEach((napi_build_version)=> {
+      if (!(parseInt(napi_build_version, 10) === napi_build_version && napi_build_version > 0)) {
+        throw new Error('All values specified in napi_versions must be positive integers.');
+      }
+    });
+  }
+
+  if (napi_build_versions && (!module_path_ok || (!remote_path_ok && !package_name_ok))) {
+    throw new Error('When napi_versions is specified; module_path and either remote_path or ' +
+			"package_name must contain the substitution string '{napi_build_version}`.");
+  }
+
+  if ((module_path_ok || remote_path_ok || package_name_ok) && !napi_build_versions_raw) {
+    throw new Error("When the substitution string '{napi_build_version}` is specified in " +
+			'module_path, remote_path, or package_name; napi_versions must also be specified.');
+  }
+
+  if (napi_build_versions && !module.exports.get_best_napi_build_version(package_json, opts) &&
+	module.exports.build_napi_only(package_json)) {
+    throw new Error(
+      'The Node-API version of this Node instance is ' + module.exports.get_napi_version(opts ? opts.target : undefined) + '. ' +
+			'This module supports Node-API version(s) ' + module.exports.get_napi_build_versions_raw(package_json) + '. ' +
+			'This Node instance cannot run this module.');
+  }
+
+  if (napi_build_versions_raw && !napi_build_versions && module.exports.build_napi_only(package_json)) {
+    throw new Error(
+      'The Node-API version of this Node instance is ' + module.exports.get_napi_version(opts ? opts.target : undefined) + '. ' +
+			'This module supports Node-API version(s) ' + module.exports.get_napi_build_versions_raw(package_json) + '. ' +
+			'This Node instance cannot run this module.');
+  }
+
+};
+
+function pathOK(path) {
+  return path && (path.indexOf('{napi_build_version}') !== -1 || path.indexOf('{node_napi_label}') !== -1);
+}
+
+module.exports.expand_commands = function(package_json, opts, commands) {
+  const expanded_commands = [];
+  const napi_build_versions = module.exports.get_napi_build_versions(package_json, opts);
+  commands.forEach((command)=> {
+    if (napi_build_versions && command.name === 'install') {
+      const napi_build_version = module.exports.get_best_napi_build_version(package_json, opts);
+      const args = napi_build_version ? [napi_build_version_tag + napi_build_version] : [];
+      expanded_commands.push({ name: command.name, args: args });
+    } else if (napi_build_versions && napi_multiple_commands.indexOf(command.name) !== -1) {
+      napi_build_versions.forEach((napi_build_version)=> {
+        const args = command.args.slice();
+        args.push(napi_build_version_tag + napi_build_version);
+        expanded_commands.push({ name: command.name, args: args });
+      });
+    } else {
+      expanded_commands.push(command);
+    }
+  });
+  return expanded_commands;
+};
+
+module.exports.get_napi_build_versions = function(package_json, opts, warnings) { // opts may be undefined
+  const log = require('npmlog');
+  let napi_build_versions = [];
+  const supported_napi_version = module.exports.get_napi_version(opts ? opts.target : undefined);
+  // remove duplicates, verify each napi version can actaully be built
+  if (package_json.binary && package_json.binary.napi_versions) {
+    package_json.binary.napi_versions.forEach((napi_version) => {
+      const duplicated = napi_build_versions.indexOf(napi_version) !== -1;
+      if (!duplicated && supported_napi_version && napi_version <= supported_napi_version) {
+        napi_build_versions.push(napi_version);
+      } else if (warnings && !duplicated && supported_napi_version) {
+        log.info('This Node instance does not support builds for Node-API version', napi_version);
+      }
+    });
+  }
+  if (opts && opts['build-latest-napi-version-only']) {
+    let latest_version = 0;
+    napi_build_versions.forEach((napi_version) => {
+      if (napi_version > latest_version) latest_version = napi_version;
+    });
+    napi_build_versions = latest_version ? [latest_version] : [];
+  }
+  return napi_build_versions.length ? napi_build_versions : undefined;
+};
+
+module.exports.get_napi_build_versions_raw = function(package_json) {
+  const napi_build_versions = [];
+  // remove duplicates
+  if (package_json.binary && package_json.binary.napi_versions) {
+    package_json.binary.napi_versions.forEach((napi_version) => {
+      if (napi_build_versions.indexOf(napi_version) === -1) {
+        napi_build_versions.push(napi_version);
+      }
+    });
+  }
+  return napi_build_versions.length ? napi_build_versions : undefined;
+};
+
+module.exports.get_command_arg = function(napi_build_version) {
+  return napi_build_version_tag + napi_build_version;
+};
+
+module.exports.get_napi_build_version_from_command_args = function(command_args) {
+  for (let i = 0; i < command_args.length; i++) {
+    const arg = command_args[i];
+    if (arg.indexOf(napi_build_version_tag) === 0) {
+      return parseInt(arg.substr(napi_build_version_tag.length), 10);
+    }
+  }
+  return undefined;
+};
+
+module.exports.swap_build_dir_out = function(napi_build_version) {
+  if (napi_build_version) {
+    const rm = require('rimraf');
+    rm.sync(module.exports.get_build_dir(napi_build_version));
+    fs.renameSync('build', module.exports.get_build_dir(napi_build_version));
+  }
+};
+
+module.exports.swap_build_dir_in = function(napi_build_version) {
+  if (napi_build_version) {
+    const rm = require('rimraf');
+    rm.sync('build');
+    fs.renameSync(module.exports.get_build_dir(napi_build_version), 'build');
+  }
+};
+
+module.exports.get_build_dir = function(napi_build_version) {
+  return 'build-tmp-napi-v' + napi_build_version;
+};
+
+module.exports.get_best_napi_build_version = function(package_json, opts) {
+  let best_napi_build_version = 0;
+  const napi_build_versions = module.exports.get_napi_build_versions(package_json, opts);
+  if (napi_build_versions) {
+    const our_napi_version = module.exports.get_napi_version(opts ? opts.target : undefined);
+    napi_build_versions.forEach((napi_build_version)=> {
+      if (napi_build_version > best_napi_build_version &&
+				napi_build_version <= our_napi_version) {
+        best_napi_build_version = napi_build_version;
+      }
+    });
+  }
+  return best_napi_build_version === 0 ? undefined : best_napi_build_version;
+};
+
+module.exports.build_napi_only = function(package_json) {
+  return package_json.binary && package_json.binary.package_name &&
+	package_json.binary.package_name.indexOf('{node_napi_label}') === -1;
+};
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/util/nw-pre-gyp/index.html b/node_modules/@mapbox/node-pre-gyp/lib/util/nw-pre-gyp/index.html
new file mode 100644
index 0000000..244466c
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/util/nw-pre-gyp/index.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>Node-webkit-based module test</title>
+<script>
+function nwModuleTest(){
+   var util = require('util');
+   var moduleFolder = require('nw.gui').App.argv[0];
+   try {
+      require(moduleFolder);
+   } catch(e) {
+      if( process.platform !== 'win32' ){
+         util.log('nw-pre-gyp error:');
+         util.log(e.stack);
+      }
+      process.exit(1);
+   }
+   process.exit(0);
+}
+</script>
+</head>
+<body onload="nwModuleTest()">
+<h1>Node-webkit-based module test</h1>
+</body>
+</html>
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/util/nw-pre-gyp/package.json b/node_modules/@mapbox/node-pre-gyp/lib/util/nw-pre-gyp/package.json
new file mode 100644
index 0000000..71d03f8
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/util/nw-pre-gyp/package.json
@@ -0,0 +1,9 @@
+{
+"main": "index.html",
+"name": "nw-pre-gyp-module-test",
+"description": "Node-webkit-based module test.",
+"version": "0.0.1",
+"window": {
+   "show": false
+}
+}
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/util/s3_setup.js b/node_modules/@mapbox/node-pre-gyp/lib/util/s3_setup.js
new file mode 100644
index 0000000..6b1b1a6
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/util/s3_setup.js
@@ -0,0 +1,163 @@
+'use strict';
+
+module.exports = exports;
+
+const url = require('url');
+const fs = require('fs');
+const path = require('path');
+
+module.exports.detect = function(opts, config) {
+  const to = opts.hosted_path;
+  const uri = url.parse(to);
+  config.prefix = (!uri.pathname || uri.pathname === '/') ? '' : uri.pathname.replace('/', '');
+  if (opts.bucket && opts.region) {
+    config.bucket = opts.bucket;
+    config.region = opts.region;
+    config.endpoint = opts.host;
+    config.s3ForcePathStyle = opts.s3ForcePathStyle;
+  } else {
+    const parts = uri.hostname.split('.s3');
+    const bucket = parts[0];
+    if (!bucket) {
+      return;
+    }
+    if (!config.bucket) {
+      config.bucket = bucket;
+    }
+    if (!config.region) {
+      const region = parts[1].slice(1).split('.')[0];
+      if (region === 'amazonaws') {
+        config.region = 'us-east-1';
+      } else {
+        config.region = region;
+      }
+    }
+  }
+};
+
+module.exports.get_s3 = function(config) {
+
+  if (process.env.node_pre_gyp_mock_s3) {
+    // here we're mocking. node_pre_gyp_mock_s3 is the scratch directory
+    // for the mock code.
+    const AWSMock = require('mock-aws-s3');
+    const os = require('os');
+
+    AWSMock.config.basePath = `${os.tmpdir()}/mock`;
+
+    const s3 = AWSMock.S3();
+
+    // wrapped callback maker. fs calls return code of ENOENT but AWS.S3 returns
+    // NotFound.
+    const wcb = (fn) => (err, ...args) => {
+      if (err && err.code === 'ENOENT') {
+        err.code = 'NotFound';
+      }
+      return fn(err, ...args);
+    };
+
+    return {
+      listObjects(params, callback) {
+        return s3.listObjects(params, wcb(callback));
+      },
+      headObject(params, callback) {
+        return s3.headObject(params, wcb(callback));
+      },
+      deleteObject(params, callback) {
+        return s3.deleteObject(params, wcb(callback));
+      },
+      putObject(params, callback) {
+        return s3.putObject(params, wcb(callback));
+      }
+    };
+  }
+
+  // if not mocking then setup real s3.
+  const AWS = require('aws-sdk');
+
+  AWS.config.update(config);
+  const s3 = new AWS.S3();
+
+  // need to change if additional options need to be specified.
+  return {
+    listObjects(params, callback) {
+      return s3.listObjects(params, callback);
+    },
+    headObject(params, callback) {
+      return s3.headObject(params, callback);
+    },
+    deleteObject(params, callback) {
+      return s3.deleteObject(params, callback);
+    },
+    putObject(params, callback) {
+      return s3.putObject(params, callback);
+    }
+  };
+
+
+
+};
+
+//
+// function to get the mocking control function. if not mocking it returns a no-op.
+//
+// if mocking it sets up the mock http interceptors that use the mocked s3 file system
+// to fulfill reponses.
+module.exports.get_mockS3Http = function() {
+  let mock_s3 = false;
+  if (!process.env.node_pre_gyp_mock_s3) {
+    return () => mock_s3;
+  }
+
+  const nock = require('nock');
+  // the bucket used for testing, as addressed by https.
+  const host = 'https://mapbox-node-pre-gyp-public-testing-bucket.s3.us-east-1.amazonaws.com';
+  const mockDir = process.env.node_pre_gyp_mock_s3 + '/mapbox-node-pre-gyp-public-testing-bucket';
+
+  // function to setup interceptors. they are "turned off" by setting mock_s3 to false.
+  const mock_http = () => {
+    // eslint-disable-next-line no-unused-vars
+    function get(uri, requestBody) {
+      const filepath = path.join(mockDir, uri.replace('%2B', '+'));
+
+      try {
+        fs.accessSync(filepath, fs.constants.R_OK);
+      } catch (e) {
+        return [404, 'not found\n'];
+      }
+
+      // the mock s3 functions just write to disk, so just read from it.
+      return [200, fs.createReadStream(filepath)];
+    }
+
+    // eslint-disable-next-line no-unused-vars
+    return nock(host)
+      .persist()
+      .get(() => mock_s3) // mock any uri for s3 when true
+      .reply(get);
+  };
+
+  // setup interceptors. they check the mock_s3 flag to determine whether to intercept.
+  mock_http(nock, host, mockDir);
+  // function to turn matching all requests to s3 on/off.
+  const mockS3Http = (action) => {
+    const previous = mock_s3;
+    if (action === 'off') {
+      mock_s3 = false;
+    } else if (action === 'on') {
+      mock_s3 = true;
+    } else if (action !== 'get') {
+      throw new Error(`illegal action for setMockHttp ${action}`);
+    }
+    return previous;
+  };
+
+  // call mockS3Http with the argument
+  // - 'on' - turn it on
+  // - 'off' - turn it off (used by fetch.test.js so it doesn't interfere with redirects)
+  // - 'get' - return true or false for 'on' or 'off'
+  return mockS3Http;
+};
+
+
+
diff --git a/node_modules/@mapbox/node-pre-gyp/lib/util/versioning.js b/node_modules/@mapbox/node-pre-gyp/lib/util/versioning.js
new file mode 100644
index 0000000..825cfa1
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/lib/util/versioning.js
@@ -0,0 +1,335 @@
+'use strict';
+
+module.exports = exports;
+
+const path = require('path');
+const semver = require('semver');
+const url = require('url');
+const detect_libc = require('detect-libc');
+const napi = require('./napi.js');
+
+let abi_crosswalk;
+
+// This is used for unit testing to provide a fake
+// ABI crosswalk that emulates one that is not updated
+// for the current version
+if (process.env.NODE_PRE_GYP_ABI_CROSSWALK) {
+  abi_crosswalk = require(process.env.NODE_PRE_GYP_ABI_CROSSWALK);
+} else {
+  abi_crosswalk = require('./abi_crosswalk.json');
+}
+
+const major_versions = {};
+Object.keys(abi_crosswalk).forEach((v) => {
+  const major = v.split('.')[0];
+  if (!major_versions[major]) {
+    major_versions[major] = v;
+  }
+});
+
+function get_electron_abi(runtime, target_version) {
+  if (!runtime) {
+    throw new Error('get_electron_abi requires valid runtime arg');
+  }
+  if (typeof target_version === 'undefined') {
+    // erroneous CLI call
+    throw new Error('Empty target version is not supported if electron is the target.');
+  }
+  // Electron guarantees that patch version update won't break native modules.
+  const sem_ver = semver.parse(target_version);
+  return runtime + '-v' + sem_ver.major + '.' + sem_ver.minor;
+}
+module.exports.get_electron_abi = get_electron_abi;
+
+function get_node_webkit_abi(runtime, target_version) {
+  if (!runtime) {
+    throw new Error('get_node_webkit_abi requires valid runtime arg');
+  }
+  if (typeof target_version === 'undefined') {
+    // erroneous CLI call
+    throw new Error('Empty target version is not supported if node-webkit is the target.');
+  }
+  return runtime + '-v' + target_version;
+}
+module.exports.get_node_webkit_abi = get_node_webkit_abi;
+
+function get_node_abi(runtime, versions) {
+  if (!runtime) {
+    throw new Error('get_node_abi requires valid runtime arg');
+  }
+  if (!versions) {
+    throw new Error('get_node_abi requires valid process.versions object');
+  }
+  const sem_ver = semver.parse(versions.node);
+  if (sem_ver.major === 0 && sem_ver.minor % 2) { // odd series
+    // https://github.com/mapbox/node-pre-gyp/issues/124
+    return runtime + '-v' + versions.node;
+  } else {
+    // process.versions.modules added in >= v0.10.4 and v0.11.7
+    // https://github.com/joyent/node/commit/ccabd4a6fa8a6eb79d29bc3bbe9fe2b6531c2d8e
+    return versions.modules ? runtime + '-v' + (+versions.modules) :
+      'v8-' + versions.v8.split('.').slice(0, 2).join('.');
+  }
+}
+module.exports.get_node_abi = get_node_abi;
+
+function get_runtime_abi(runtime, target_version) {
+  if (!runtime) {
+    throw new Error('get_runtime_abi requires valid runtime arg');
+  }
+  if (runtime === 'node-webkit') {
+    return get_node_webkit_abi(runtime, target_version || process.versions['node-webkit']);
+  } else if (runtime === 'electron') {
+    return get_electron_abi(runtime, target_version || process.versions.electron);
+  } else {
+    if (runtime !== 'node') {
+      throw new Error("Unknown Runtime: '" + runtime + "'");
+    }
+    if (!target_version) {
+      return get_node_abi(runtime, process.versions);
+    } else {
+      let cross_obj;
+      // abi_crosswalk generated with ./scripts/abi_crosswalk.js
+      if (abi_crosswalk[target_version]) {
+        cross_obj = abi_crosswalk[target_version];
+      } else {
+        const target_parts = target_version.split('.').map((i) => { return +i; });
+        if (target_parts.length !== 3) { // parse failed
+          throw new Error('Unknown target version: ' + target_version);
+        }
+        /*
+                    The below code tries to infer the last known ABI compatible version
+                    that we have recorded in the abi_crosswalk.json when an exact match
+                    is not possible. The reasons for this to exist are complicated:
+
+                       - We support passing --target to be able to allow developers to package binaries for versions of node
+                         that are not the same one as they are running. This might also be used in combination with the
+                         --target_arch or --target_platform flags to also package binaries for alternative platforms
+                       - When --target is passed we can't therefore determine the ABI (process.versions.modules) from the node
+                         version that is running in memory
+                       - So, therefore node-pre-gyp keeps an "ABI crosswalk" (lib/util/abi_crosswalk.json) to be able to look
+                         this info up for all versions
+                       - But we cannot easily predict what the future ABI will be for released versions
+                       - And node-pre-gyp needs to be a `bundledDependency` in apps that depend on it in order to work correctly
+                         by being fully available at install time.
+                       - So, the speed of node releases and the bundled nature of node-pre-gyp mean that a new node-pre-gyp release
+                         need to happen for every node.js/io.js/node-webkit/nw.js/atom-shell/etc release that might come online if
+                         you want the `--target` flag to keep working for the latest version
+                       - Which is impractical ^^
+                       - Hence the below code guesses about future ABI to make the need to update node-pre-gyp less demanding.
+
+                    In practice then you can have a dependency of your app like `node-sqlite3` that bundles a `node-pre-gyp` that
+                    only knows about node v0.10.33 in the `abi_crosswalk.json` but target node v0.10.34 (which is assumed to be
+                    ABI compatible with v0.10.33).
+
+                    TODO: use semver module instead of custom version parsing
+                */
+        const major = target_parts[0];
+        let minor = target_parts[1];
+        let patch = target_parts[2];
+        // io.js: yeah if node.js ever releases 1.x this will break
+        // but that is unlikely to happen: https://github.com/iojs/io.js/pull/253#issuecomment-69432616
+        if (major === 1) {
+          // look for last release that is the same major version
+          // e.g. we assume io.js 1.x is ABI compatible with >= 1.0.0
+          while (true) {
+            if (minor > 0) --minor;
+            if (patch > 0) --patch;
+            const new_iojs_target = '' + major + '.' + minor + '.' + patch;
+            if (abi_crosswalk[new_iojs_target]) {
+              cross_obj = abi_crosswalk[new_iojs_target];
+              console.log('Warning: node-pre-gyp could not find exact match for ' + target_version);
+              console.log('Warning: but node-pre-gyp successfully choose ' + new_iojs_target + ' as ABI compatible target');
+              break;
+            }
+            if (minor === 0 && patch === 0) {
+              break;
+            }
+          }
+        } else if (major >= 2) {
+          // look for last release that is the same major version
+          if (major_versions[major]) {
+            cross_obj = abi_crosswalk[major_versions[major]];
+            console.log('Warning: node-pre-gyp could not find exact match for ' + target_version);
+            console.log('Warning: but node-pre-gyp successfully choose ' + major_versions[major] + ' as ABI compatible target');
+          }
+        } else if (major === 0) { // node.js
+          if (target_parts[1] % 2 === 0) { // for stable/even node.js series
+            // look for the last release that is the same minor release
+            // e.g. we assume node 0.10.x is ABI compatible with >= 0.10.0
+            while (--patch > 0) {
+              const new_node_target = '' + major + '.' + minor + '.' + patch;
+              if (abi_crosswalk[new_node_target]) {
+                cross_obj = abi_crosswalk[new_node_target];
+                console.log('Warning: node-pre-gyp could not find exact match for ' + target_version);
+                console.log('Warning: but node-pre-gyp successfully choose ' + new_node_target + ' as ABI compatible target');
+                break;
+              }
+            }
+          }
+        }
+      }
+      if (!cross_obj) {
+        throw new Error('Unsupported target version: ' + target_version);
+      }
+      // emulate process.versions
+      const versions_obj = {
+        node: target_version,
+        v8: cross_obj.v8 + '.0',
+        // abi_crosswalk uses 1 for node versions lacking process.versions.modules
+        // process.versions.modules added in >= v0.10.4 and v0.11.7
+        modules: cross_obj.node_abi > 1 ? cross_obj.node_abi : undefined
+      };
+      return get_node_abi(runtime, versions_obj);
+    }
+  }
+}
+module.exports.get_runtime_abi = get_runtime_abi;
+
+const required_parameters = [
+  'module_name',
+  'module_path',
+  'host'
+];
+
+function validate_config(package_json, opts) {
+  const msg = package_json.name + ' package.json is not node-pre-gyp ready:\n';
+  const missing = [];
+  if (!package_json.main) {
+    missing.push('main');
+  }
+  if (!package_json.version) {
+    missing.push('version');
+  }
+  if (!package_json.name) {
+    missing.push('name');
+  }
+  if (!package_json.binary) {
+    missing.push('binary');
+  }
+  const o = package_json.binary;
+  if (o) {
+    required_parameters.forEach((p) => {
+      if (!o[p] || typeof o[p] !== 'string') {
+        missing.push('binary.' + p);
+      }
+    });
+  }
+
+  if (missing.length >= 1) {
+    throw new Error(msg + 'package.json must declare these properties: \n' + missing.join('\n'));
+  }
+  if (o) {
+    // enforce https over http
+    const protocol = url.parse(o.host).protocol;
+    if (protocol === 'http:') {
+      throw new Error("'host' protocol (" + protocol + ") is invalid - only 'https:' is accepted");
+    }
+  }
+  napi.validate_package_json(package_json, opts);
+}
+
+module.exports.validate_config = validate_config;
+
+function eval_template(template, opts) {
+  Object.keys(opts).forEach((key) => {
+    const pattern = '{' + key + '}';
+    while (template.indexOf(pattern) > -1) {
+      template = template.replace(pattern, opts[key]);
+    }
+  });
+  return template;
+}
+
+// url.resolve needs single trailing slash
+// to behave correctly, otherwise a double slash
+// may end up in the url which breaks requests
+// and a lacking slash may not lead to proper joining
+function fix_slashes(pathname) {
+  if (pathname.slice(-1) !== '/') {
+    return pathname + '/';
+  }
+  return pathname;
+}
+
+// remove double slashes
+// note: path.normalize will not work because
+// it will convert forward to back slashes
+function drop_double_slashes(pathname) {
+  return pathname.replace(/\/\//g, '/');
+}
+
+function get_process_runtime(versions) {
+  let runtime = 'node';
+  if (versions['node-webkit']) {
+    runtime = 'node-webkit';
+  } else if (versions.electron) {
+    runtime = 'electron';
+  }
+  return runtime;
+}
+
+module.exports.get_process_runtime = get_process_runtime;
+
+const default_package_name = '{module_name}-v{version}-{node_abi}-{platform}-{arch}.tar.gz';
+const default_remote_path = '';
+
+module.exports.evaluate = function(package_json, options, napi_build_version) {
+  options = options || {};
+  validate_config(package_json, options); // options is a suitable substitute for opts in this case
+  const v = package_json.version;
+  const module_version = semver.parse(v);
+  const runtime = options.runtime || get_process_runtime(process.versions);
+  const opts = {
+    name: package_json.name,
+    configuration: options.debug ? 'Debug' : 'Release',
+    debug: options.debug,
+    module_name: package_json.binary.module_name,
+    version: module_version.version,
+    prerelease: module_version.prerelease.length ? module_version.prerelease.join('.') : '',
+    build: module_version.build.length ? module_version.build.join('.') : '',
+    major: module_version.major,
+    minor: module_version.minor,
+    patch: module_version.patch,
+    runtime: runtime,
+    node_abi: get_runtime_abi(runtime, options.target),
+    node_abi_napi: napi.get_napi_version(options.target) ? 'napi' : get_runtime_abi(runtime, options.target),
+    napi_version: napi.get_napi_version(options.target), // non-zero numeric, undefined if unsupported
+    napi_build_version: napi_build_version || '',
+    node_napi_label: napi_build_version ? 'napi-v' + napi_build_version : get_runtime_abi(runtime, options.target),
+    target: options.target || '',
+    platform: options.target_platform || process.platform,
+    target_platform: options.target_platform || process.platform,
+    arch: options.target_arch || process.arch,
+    target_arch: options.target_arch || process.arch,
+    libc: options.target_libc || detect_libc.familySync() || 'unknown',
+    module_main: package_json.main,
+    toolset: options.toolset || '', // address https://github.com/mapbox/node-pre-gyp/issues/119
+    bucket: package_json.binary.bucket,
+    region: package_json.binary.region,
+    s3ForcePathStyle: package_json.binary.s3ForcePathStyle || false
+  };
+    // support host mirror with npm config `--{module_name}_binary_host_mirror`
+    // e.g.: https://github.com/node-inspector/v8-profiler/blob/master/package.json#L25
+    // > npm install v8-profiler --profiler_binary_host_mirror=https://npm.taobao.org/mirrors/node-inspector/
+  const validModuleName = opts.module_name.replace('-', '_');
+  const host = process.env['npm_config_' + validModuleName + '_binary_host_mirror'] || package_json.binary.host;
+  opts.host = fix_slashes(eval_template(host, opts));
+  opts.module_path = eval_template(package_json.binary.module_path, opts);
+  // now we resolve the module_path to ensure it is absolute so that binding.gyp variables work predictably
+  if (options.module_root) {
+    // resolve relative to known module root: works for pre-binding require
+    opts.module_path = path.join(options.module_root, opts.module_path);
+  } else {
+    // resolve relative to current working directory: works for node-pre-gyp commands
+    opts.module_path = path.resolve(opts.module_path);
+  }
+  opts.module = path.join(opts.module_path, opts.module_name + '.node');
+  opts.remote_path = package_json.binary.remote_path ? drop_double_slashes(fix_slashes(eval_template(package_json.binary.remote_path, opts))) : default_remote_path;
+  const package_name = package_json.binary.package_name ? package_json.binary.package_name : default_package_name;
+  opts.package_name = eval_template(package_name, opts);
+  opts.staged_tarball = path.join('build/stage', opts.remote_path, opts.package_name);
+  opts.hosted_path = url.resolve(opts.host, opts.remote_path);
+  opts.hosted_tarball = url.resolve(opts.hosted_path, opts.package_name);
+  return opts;
+};
diff --git a/node_modules/@mapbox/node-pre-gyp/package.json b/node_modules/@mapbox/node-pre-gyp/package.json
new file mode 100644
index 0000000..5e1d6fd
--- /dev/null
+++ b/node_modules/@mapbox/node-pre-gyp/package.json
@@ -0,0 +1,62 @@
+{
+  "name": "@mapbox/node-pre-gyp",
+  "description": "Node.js native addon binary install tool",
+  "version": "1.0.11",
+  "keywords": [
+    "native",
+    "addon",
+    "module",
+    "c",
+    "c++",
+    "bindings",
+    "binary"
+  ],
+  "license": "BSD-3-Clause",
+  "author": "Dane Springmeyer <dane@mapbox.com>",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/mapbox/node-pre-gyp.git"
+  },
+  "bin": "./bin/node-pre-gyp",
+  "main": "./lib/node-pre-gyp.js",
+  "dependencies": {
+    "detect-libc": "^2.0.0",
+    "https-proxy-agent": "^5.0.0",
+    "make-dir": "^3.1.0",
+    "node-fetch": "^2.6.7",
+    "nopt": "^5.0.0",
+    "npmlog": "^5.0.1",
+    "rimraf": "^3.0.2",
+    "semver": "^7.3.5",
+    "tar": "^6.1.11"
+  },
+  "devDependencies": {
+    "@mapbox/cloudfriend": "^5.1.0",
+    "@mapbox/eslint-config-mapbox": "^3.0.0",
+    "aws-sdk": "^2.1087.0",
+    "codecov": "^3.8.3",
+    "eslint": "^7.32.0",
+    "eslint-plugin-node": "^11.1.0",
+    "mock-aws-s3": "^4.0.2",
+    "nock": "^12.0.3",
+    "node-addon-api": "^4.3.0",
+    "nyc": "^15.1.0",
+    "tape": "^5.5.2",
+    "tar-fs": "^2.1.1"
+  },
+  "nyc": {
+    "all": true,
+    "skip-full": false,
+    "exclude": [
+      "test/**"
+    ]
+  },
+  "scripts": {
+    "coverage": "nyc --all --include index.js --include lib/ npm test",
+    "upload-coverage": "nyc report --reporter json && codecov --clear --flags=unit --file=./coverage/coverage-final.json",
+    "lint": "eslint bin/node-pre-gyp lib/*js lib/util/*js test/*js scripts/*js",
+    "fix": "npm run lint -- --fix",
+    "update-crosswalk": "node scripts/abi_crosswalk.js",
+    "test": "tape test/*test.js"
+  }
+}
diff --git a/node_modules/@npmcli/fs/LICENSE.md b/node_modules/@npmcli/fs/LICENSE.md
new file mode 100644
index 0000000..5fc208f
--- /dev/null
+++ b/node_modules/@npmcli/fs/LICENSE.md
@@ -0,0 +1,20 @@
+<!-- This file is automatically added by @npmcli/template-oss. Do not edit. -->
+
+ISC License
+
+Copyright npm, Inc.
+
+Permission to use, copy, modify, and/or distribute this
+software for any purpose with or without fee is hereby
+granted, provided that the above copyright notice and this
+permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND NPM DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL NPM BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
+USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/@npmcli/fs/README.md b/node_modules/@npmcli/fs/README.md
new file mode 100644
index 0000000..bc71a11
--- /dev/null
+++ b/node_modules/@npmcli/fs/README.md
@@ -0,0 +1,60 @@
+# @npmcli/fs
+
+polyfills, and extensions, of the core `fs` module.
+
+## Features
+
+- all exposed functions return promises
+- `fs.rm` polyfill for node versions < 14.14.0
+- `fs.mkdir` polyfill adding support for the `recursive` and `force` options in node versions < 10.12.0
+- `fs.copyFile` extended to accept an `owner` option
+- `fs.mkdir` extended to accept an `owner` option
+- `fs.mkdtemp` extended to accept an `owner` option
+- `fs.writeFile` extended to accept an `owner` option
+- `fs.withTempDir` added
+- `fs.cp` polyfill for node < 16.7.0
+
+## The `owner` option
+
+The `copyFile`, `mkdir`, `mkdtemp`, `writeFile`, and `withTempDir` functions
+all accept a new `owner` property in their options. It can be used in two ways:
+
+- `{ owner: { uid: 100, gid: 100 } }` - set the `uid` and `gid` explicitly
+- `{ owner: 100 }` - use one value, will set both `uid` and `gid` the same
+
+The special string `'inherit'` may be passed instead of a number, which will
+cause this module to automatically determine the correct `uid` and/or `gid`
+from the nearest existing parent directory of the target.
+
+## `fs.withTempDir(root, fn, options) -> Promise`
+
+### Parameters
+
+- `root`: the directory in which to create the temporary directory
+- `fn`: a function that will be called with the path to the temporary directory
+- `options`
+  - `tmpPrefix`: a prefix to be used in the generated directory name
+
+### Usage
+
+The `withTempDir` function creates a temporary directory, runs the provided
+function (`fn`), then removes the temporary directory and resolves or rejects
+based on the result of `fn`.
+
+```js
+const fs = require('@npmcli/fs')
+const os = require('os')
+
+// this function will be called with the full path to the temporary directory
+// it is called with `await` behind the scenes, so can be async if desired.
+const myFunction = async (tempPath) => {
+  return 'done!'
+}
+
+const main = async () => {
+  const result = await fs.withTempDir(os.tmpdir(), myFunction)
+  // result === 'done!'
+}
+
+main()
+```
diff --git a/node_modules/@npmcli/fs/lib/common/file-url-to-path/index.js b/node_modules/@npmcli/fs/lib/common/file-url-to-path/index.js
new file mode 100644
index 0000000..7755d1c
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/common/file-url-to-path/index.js
@@ -0,0 +1,17 @@
+const url = require('url')
+
+const node = require('../node.js')
+const polyfill = require('./polyfill.js')
+
+const useNative = node.satisfies('>=10.12.0')
+
+const fileURLToPath = (path) => {
+  // the polyfill is tested separately from this module, no need to hack
+  // process.version to try to trigger it just for coverage
+  // istanbul ignore next
+  return useNative
+    ? url.fileURLToPath(path)
+    : polyfill(path)
+}
+
+module.exports = fileURLToPath
diff --git a/node_modules/@npmcli/fs/lib/common/file-url-to-path/polyfill.js b/node_modules/@npmcli/fs/lib/common/file-url-to-path/polyfill.js
new file mode 100644
index 0000000..6cc90f0
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/common/file-url-to-path/polyfill.js
@@ -0,0 +1,121 @@
+const { URL, domainToUnicode } = require('url')
+
+const CHAR_LOWERCASE_A = 97
+const CHAR_LOWERCASE_Z = 122
+
+const isWindows = process.platform === 'win32'
+
+class ERR_INVALID_FILE_URL_HOST extends TypeError {
+  constructor (platform) {
+    super(`File URL host must be "localhost" or empty on ${platform}`)
+    this.code = 'ERR_INVALID_FILE_URL_HOST'
+  }
+
+  toString () {
+    return `${this.name} [${this.code}]: ${this.message}`
+  }
+}
+
+class ERR_INVALID_FILE_URL_PATH extends TypeError {
+  constructor (msg) {
+    super(`File URL path ${msg}`)
+    this.code = 'ERR_INVALID_FILE_URL_PATH'
+  }
+
+  toString () {
+    return `${this.name} [${this.code}]: ${this.message}`
+  }
+}
+
+class ERR_INVALID_ARG_TYPE extends TypeError {
+  constructor (name, actual) {
+    super(`The "${name}" argument must be one of type string or an instance ` +
+      `of URL. Received type ${typeof actual} ${actual}`)
+    this.code = 'ERR_INVALID_ARG_TYPE'
+  }
+
+  toString () {
+    return `${this.name} [${this.code}]: ${this.message}`
+  }
+}
+
+class ERR_INVALID_URL_SCHEME extends TypeError {
+  constructor (expected) {
+    super(`The URL must be of scheme ${expected}`)
+    this.code = 'ERR_INVALID_URL_SCHEME'
+  }
+
+  toString () {
+    return `${this.name} [${this.code}]: ${this.message}`
+  }
+}
+
+const isURLInstance = (input) => {
+  return input != null && input.href && input.origin
+}
+
+const getPathFromURLWin32 = (url) => {
+  const hostname = url.hostname
+  let pathname = url.pathname
+  for (let n = 0; n < pathname.length; n++) {
+    if (pathname[n] === '%') {
+      const third = pathname.codePointAt(n + 2) | 0x20
+      if ((pathname[n + 1] === '2' && third === 102) ||
+        (pathname[n + 1] === '5' && third === 99)) {
+        throw new ERR_INVALID_FILE_URL_PATH('must not include encoded \\ or / characters')
+      }
+    }
+  }
+
+  pathname = pathname.replace(/\//g, '\\')
+  pathname = decodeURIComponent(pathname)
+  if (hostname !== '') {
+    return `\\\\${domainToUnicode(hostname)}${pathname}`
+  }
+
+  const letter = pathname.codePointAt(1) | 0x20
+  const sep = pathname[2]
+  if (letter < CHAR_LOWERCASE_A || letter > CHAR_LOWERCASE_Z ||
+    (sep !== ':')) {
+    throw new ERR_INVALID_FILE_URL_PATH('must be absolute')
+  }
+
+  return pathname.slice(1)
+}
+
+const getPathFromURLPosix = (url) => {
+  if (url.hostname !== '') {
+    throw new ERR_INVALID_FILE_URL_HOST(process.platform)
+  }
+
+  const pathname = url.pathname
+
+  for (let n = 0; n < pathname.length; n++) {
+    if (pathname[n] === '%') {
+      const third = pathname.codePointAt(n + 2) | 0x20
+      if (pathname[n + 1] === '2' && third === 102) {
+        throw new ERR_INVALID_FILE_URL_PATH('must not include encoded / characters')
+      }
+    }
+  }
+
+  return decodeURIComponent(pathname)
+}
+
+const fileURLToPath = (path) => {
+  if (typeof path === 'string') {
+    path = new URL(path)
+  } else if (!isURLInstance(path)) {
+    throw new ERR_INVALID_ARG_TYPE('path', ['string', 'URL'], path)
+  }
+
+  if (path.protocol !== 'file:') {
+    throw new ERR_INVALID_URL_SCHEME('file')
+  }
+
+  return isWindows
+    ? getPathFromURLWin32(path)
+    : getPathFromURLPosix(path)
+}
+
+module.exports = fileURLToPath
diff --git a/node_modules/@npmcli/fs/lib/common/get-options.js b/node_modules/@npmcli/fs/lib/common/get-options.js
new file mode 100644
index 0000000..cb5982f
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/common/get-options.js
@@ -0,0 +1,20 @@
+// given an input that may or may not be an object, return an object that has
+// a copy of every defined property listed in 'copy'. if the input is not an
+// object, assign it to the property named by 'wrap'
+const getOptions = (input, { copy, wrap }) => {
+  const result = {}
+
+  if (input && typeof input === 'object') {
+    for (const prop of copy) {
+      if (input[prop] !== undefined) {
+        result[prop] = input[prop]
+      }
+    }
+  } else {
+    result[wrap] = input
+  }
+
+  return result
+}
+
+module.exports = getOptions
diff --git a/node_modules/@npmcli/fs/lib/common/node.js b/node_modules/@npmcli/fs/lib/common/node.js
new file mode 100644
index 0000000..4d13bc0
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/common/node.js
@@ -0,0 +1,9 @@
+const semver = require('semver')
+
+const satisfies = (range) => {
+  return semver.satisfies(process.version, range, { includePrerelease: true })
+}
+
+module.exports = {
+  satisfies,
+}
diff --git a/node_modules/@npmcli/fs/lib/common/owner.js b/node_modules/@npmcli/fs/lib/common/owner.js
new file mode 100644
index 0000000..e3468b0
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/common/owner.js
@@ -0,0 +1,92 @@
+const { dirname, resolve } = require('path')
+
+const fileURLToPath = require('./file-url-to-path/index.js')
+const fs = require('../fs.js')
+
+// given a path, find the owner of the nearest parent
+const find = async (path) => {
+  // if we have no getuid, permissions are irrelevant on this platform
+  if (!process.getuid) {
+    return {}
+  }
+
+  // fs methods accept URL objects with a scheme of file: so we need to unwrap
+  // those into an actual path string before we can resolve it
+  const resolved = path != null && path.href && path.origin
+    ? resolve(fileURLToPath(path))
+    : resolve(path)
+
+  let stat
+
+  try {
+    stat = await fs.lstat(resolved)
+  } finally {
+    // if we got a stat, return its contents
+    if (stat) {
+      return { uid: stat.uid, gid: stat.gid }
+    }
+
+    // try the parent directory
+    if (resolved !== dirname(resolved)) {
+      return find(dirname(resolved))
+    }
+
+    // no more parents, never got a stat, just return an empty object
+    return {}
+  }
+}
+
+// given a path, uid, and gid update the ownership of the path if necessary
+const update = async (path, uid, gid) => {
+  // nothing to update, just exit
+  if (uid === undefined && gid === undefined) {
+    return
+  }
+
+  try {
+    // see if the permissions are already the same, if they are we don't
+    // need to do anything, so return early
+    const stat = await fs.stat(path)
+    if (uid === stat.uid && gid === stat.gid) {
+      return
+    }
+  } catch (err) {}
+
+  try {
+    await fs.chown(path, uid, gid)
+  } catch (err) {}
+}
+
+// accepts a `path` and the `owner` property of an options object and normalizes
+// it into an object with numerical `uid` and `gid`
+const validate = async (path, input) => {
+  let uid
+  let gid
+
+  if (typeof input === 'string' || typeof input === 'number') {
+    uid = input
+    gid = input
+  } else if (input && typeof input === 'object') {
+    uid = input.uid
+    gid = input.gid
+  }
+
+  if (uid === 'inherit' || gid === 'inherit') {
+    const owner = await find(path)
+    if (uid === 'inherit') {
+      uid = owner.uid
+    }
+
+    if (gid === 'inherit') {
+      gid = owner.gid
+    }
+  }
+
+  return { uid, gid }
+}
+
+module.exports = {
+  find,
+  update,
+  validate,
+}
diff --git a/node_modules/@npmcli/fs/lib/copy-file.js b/node_modules/@npmcli/fs/lib/copy-file.js
new file mode 100644
index 0000000..d9875ab
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/copy-file.js
@@ -0,0 +1,22 @@
+const fs = require('./fs.js')
+const getOptions = require('./common/get-options.js')
+const owner = require('./common/owner.js')
+
+const copyFile = async (src, dest, opts) => {
+  const options = getOptions(opts, {
+    copy: ['mode', 'owner'],
+    wrap: 'mode',
+  })
+
+  const { uid, gid } = await owner.validate(dest, options.owner)
+
+  // the node core method as of 16.5.0 does not support the mode being in an
+  // object, so we have to pass the mode value directly
+  const result = await fs.copyFile(src, dest, options.mode)
+
+  await owner.update(dest, uid, gid)
+
+  return result
+}
+
+module.exports = copyFile
diff --git a/node_modules/@npmcli/fs/lib/cp/LICENSE b/node_modules/@npmcli/fs/lib/cp/LICENSE
new file mode 100644
index 0000000..93546df
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/cp/LICENSE
@@ -0,0 +1,15 @@
+(The MIT License)
+
+Copyright (c) 2011-2017 JP Richardson
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files
+(the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify,
+ merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
+OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/@npmcli/fs/lib/cp/index.js b/node_modules/@npmcli/fs/lib/cp/index.js
new file mode 100644
index 0000000..5da4739
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/cp/index.js
@@ -0,0 +1,22 @@
+const fs = require('../fs.js')
+const getOptions = require('../common/get-options.js')
+const node = require('../common/node.js')
+const polyfill = require('./polyfill.js')
+
+// node 16.7.0 added fs.cp
+const useNative = node.satisfies('>=16.7.0')
+
+const cp = async (src, dest, opts) => {
+  const options = getOptions(opts, {
+    copy: ['dereference', 'errorOnExist', 'filter', 'force', 'preserveTimestamps', 'recursive'],
+  })
+
+  // the polyfill is tested separately from this module, no need to hack
+  // process.version to try to trigger it just for coverage
+  // istanbul ignore next
+  return useNative
+    ? fs.cp(src, dest, options)
+    : polyfill(src, dest, options)
+}
+
+module.exports = cp
diff --git a/node_modules/@npmcli/fs/lib/cp/polyfill.js b/node_modules/@npmcli/fs/lib/cp/polyfill.js
new file mode 100644
index 0000000..f83ccbf
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/cp/polyfill.js
@@ -0,0 +1,428 @@
+// this file is a modified version of the code in node 17.2.0
+// which is, in turn, a modified version of the fs-extra module on npm
+// node core changes:
+// - Use of the assert module has been replaced with core's error system.
+// - All code related to the glob dependency has been removed.
+// - Bring your own custom fs module is not currently supported.
+// - Some basic code cleanup.
+// changes here:
+// - remove all callback related code
+// - drop sync support
+// - change assertions back to non-internal methods (see options.js)
+// - throws ENOTDIR when rmdir gets an ENOENT for a path that exists in Windows
+'use strict'
+
+const {
+  ERR_FS_CP_DIR_TO_NON_DIR,
+  ERR_FS_CP_EEXIST,
+  ERR_FS_CP_EINVAL,
+  ERR_FS_CP_FIFO_PIPE,
+  ERR_FS_CP_NON_DIR_TO_DIR,
+  ERR_FS_CP_SOCKET,
+  ERR_FS_CP_SYMLINK_TO_SUBDIRECTORY,
+  ERR_FS_CP_UNKNOWN,
+  ERR_FS_EISDIR,
+  ERR_INVALID_ARG_TYPE,
+} = require('../errors.js')
+const {
+  constants: {
+    errno: {
+      EEXIST,
+      EISDIR,
+      EINVAL,
+      ENOTDIR,
+    },
+  },
+} = require('os')
+const {
+  chmod,
+  copyFile,
+  lstat,
+  mkdir,
+  readdir,
+  readlink,
+  stat,
+  symlink,
+  unlink,
+  utimes,
+} = require('../fs.js')
+const {
+  dirname,
+  isAbsolute,
+  join,
+  parse,
+  resolve,
+  sep,
+  toNamespacedPath,
+} = require('path')
+const { fileURLToPath } = require('url')
+
+const defaultOptions = {
+  dereference: false,
+  errorOnExist: false,
+  filter: undefined,
+  force: true,
+  preserveTimestamps: false,
+  recursive: false,
+}
+
+async function cp (src, dest, opts) {
+  if (opts != null && typeof opts !== 'object') {
+    throw new ERR_INVALID_ARG_TYPE('options', ['Object'], opts)
+  }
+  return cpFn(
+    toNamespacedPath(getValidatedPath(src)),
+    toNamespacedPath(getValidatedPath(dest)),
+    { ...defaultOptions, ...opts })
+}
+
+function getValidatedPath (fileURLOrPath) {
+  const path = fileURLOrPath != null && fileURLOrPath.href
+      && fileURLOrPath.origin
+    ? fileURLToPath(fileURLOrPath)
+    : fileURLOrPath
+  return path
+}
+
+async function cpFn (src, dest, opts) {
+  // Warn about using preserveTimestamps on 32-bit node
+  // istanbul ignore next
+  if (opts.preserveTimestamps && process.arch === 'ia32') {
+    const warning = 'Using the preserveTimestamps option in 32-bit ' +
+      'node is not recommended'
+    process.emitWarning(warning, 'TimestampPrecisionWarning')
+  }
+  const stats = await checkPaths(src, dest, opts)
+  const { srcStat, destStat } = stats
+  await checkParentPaths(src, srcStat, dest)
+  if (opts.filter) {
+    return handleFilter(checkParentDir, destStat, src, dest, opts)
+  }
+  return checkParentDir(destStat, src, dest, opts)
+}
+
+async function checkPaths (src, dest, opts) {
+  const { 0: srcStat, 1: destStat } = await getStats(src, dest, opts)
+  if (destStat) {
+    if (areIdentical(srcStat, destStat)) {
+      throw new ERR_FS_CP_EINVAL({
+        message: 'src and dest cannot be the same',
+        path: dest,
+        syscall: 'cp',
+        errno: EINVAL,
+      })
+    }
+    if (srcStat.isDirectory() && !destStat.isDirectory()) {
+      throw new ERR_FS_CP_DIR_TO_NON_DIR({
+        message: `cannot overwrite directory ${src} ` +
+            `with non-directory ${dest}`,
+        path: dest,
+        syscall: 'cp',
+        errno: EISDIR,
+      })
+    }
+    if (!srcStat.isDirectory() && destStat.isDirectory()) {
+      throw new ERR_FS_CP_NON_DIR_TO_DIR({
+        message: `cannot overwrite non-directory ${src} ` +
+            `with directory ${dest}`,
+        path: dest,
+        syscall: 'cp',
+        errno: ENOTDIR,
+      })
+    }
+  }
+
+  if (srcStat.isDirectory() && isSrcSubdir(src, dest)) {
+    throw new ERR_FS_CP_EINVAL({
+      message: `cannot copy ${src} to a subdirectory of self ${dest}`,
+      path: dest,
+      syscall: 'cp',
+      errno: EINVAL,
+    })
+  }
+  return { srcStat, destStat }
+}
+
+function areIdentical (srcStat, destStat) {
+  return destStat.ino && destStat.dev && destStat.ino === srcStat.ino &&
+    destStat.dev === srcStat.dev
+}
+
+function getStats (src, dest, opts) {
+  const statFunc = opts.dereference ?
+    (file) => stat(file, { bigint: true }) :
+    (file) => lstat(file, { bigint: true })
+  return Promise.all([
+    statFunc(src),
+    statFunc(dest).catch((err) => {
+      // istanbul ignore next: unsure how to cover.
+      if (err.code === 'ENOENT') {
+        return null
+      }
+      // istanbul ignore next: unsure how to cover.
+      throw err
+    }),
+  ])
+}
+
+async function checkParentDir (destStat, src, dest, opts) {
+  const destParent = dirname(dest)
+  const dirExists = await pathExists(destParent)
+  if (dirExists) {
+    return getStatsForCopy(destStat, src, dest, opts)
+  }
+  await mkdir(destParent, { recursive: true })
+  return getStatsForCopy(destStat, src, dest, opts)
+}
+
+function pathExists (dest) {
+  return stat(dest).then(
+    () => true,
+    // istanbul ignore next: not sure when this would occur
+    (err) => (err.code === 'ENOENT' ? false : Promise.reject(err)))
+}
+
+// Recursively check if dest parent is a subdirectory of src.
+// It works for all file types including symlinks since it
+// checks the src and dest inodes. It starts from the deepest
+// parent and stops once it reaches the src parent or the root path.
+async function checkParentPaths (src, srcStat, dest) {
+  const srcParent = resolve(dirname(src))
+  const destParent = resolve(dirname(dest))
+  if (destParent === srcParent || destParent === parse(destParent).root) {
+    return
+  }
+  let destStat
+  try {
+    destStat = await stat(destParent, { bigint: true })
+  } catch (err) {
+    // istanbul ignore else: not sure when this would occur
+    if (err.code === 'ENOENT') {
+      return
+    }
+    // istanbul ignore next: not sure when this would occur
+    throw err
+  }
+  if (areIdentical(srcStat, destStat)) {
+    throw new ERR_FS_CP_EINVAL({
+      message: `cannot copy ${src} to a subdirectory of self ${dest}`,
+      path: dest,
+      syscall: 'cp',
+      errno: EINVAL,
+    })
+  }
+  return checkParentPaths(src, srcStat, destParent)
+}
+
+const normalizePathToArray = (path) =>
+  resolve(path).split(sep).filter(Boolean)
+
+// Return true if dest is a subdir of src, otherwise false.
+// It only checks the path strings.
+function isSrcSubdir (src, dest) {
+  const srcArr = normalizePathToArray(src)
+  const destArr = normalizePathToArray(dest)
+  return srcArr.every((cur, i) => destArr[i] === cur)
+}
+
+async function handleFilter (onInclude, destStat, src, dest, opts, cb) {
+  const include = await opts.filter(src, dest)
+  if (include) {
+    return onInclude(destStat, src, dest, opts, cb)
+  }
+}
+
+function startCopy (destStat, src, dest, opts) {
+  if (opts.filter) {
+    return handleFilter(getStatsForCopy, destStat, src, dest, opts)
+  }
+  return getStatsForCopy(destStat, src, dest, opts)
+}
+
+async function getStatsForCopy (destStat, src, dest, opts) {
+  const statFn = opts.dereference ? stat : lstat
+  const srcStat = await statFn(src)
+  // istanbul ignore else: can't portably test FIFO
+  if (srcStat.isDirectory() && opts.recursive) {
+    return onDir(srcStat, destStat, src, dest, opts)
+  } else if (srcStat.isDirectory()) {
+    throw new ERR_FS_EISDIR({
+      message: `${src} is a directory (not copied)`,
+      path: src,
+      syscall: 'cp',
+      errno: EINVAL,
+    })
+  } else if (srcStat.isFile() ||
+            srcStat.isCharacterDevice() ||
+            srcStat.isBlockDevice()) {
+    return onFile(srcStat, destStat, src, dest, opts)
+  } else if (srcStat.isSymbolicLink()) {
+    return onLink(destStat, src, dest)
+  } else if (srcStat.isSocket()) {
+    throw new ERR_FS_CP_SOCKET({
+      message: `cannot copy a socket file: ${dest}`,
+      path: dest,
+      syscall: 'cp',
+      errno: EINVAL,
+    })
+  } else if (srcStat.isFIFO()) {
+    throw new ERR_FS_CP_FIFO_PIPE({
+      message: `cannot copy a FIFO pipe: ${dest}`,
+      path: dest,
+      syscall: 'cp',
+      errno: EINVAL,
+    })
+  }
+  // istanbul ignore next: should be unreachable
+  throw new ERR_FS_CP_UNKNOWN({
+    message: `cannot copy an unknown file type: ${dest}`,
+    path: dest,
+    syscall: 'cp',
+    errno: EINVAL,
+  })
+}
+
+function onFile (srcStat, destStat, src, dest, opts) {
+  if (!destStat) {
+    return _copyFile(srcStat, src, dest, opts)
+  }
+  return mayCopyFile(srcStat, src, dest, opts)
+}
+
+async function mayCopyFile (srcStat, src, dest, opts) {
+  if (opts.force) {
+    await unlink(dest)
+    return _copyFile(srcStat, src, dest, opts)
+  } else if (opts.errorOnExist) {
+    throw new ERR_FS_CP_EEXIST({
+      message: `${dest} already exists`,
+      path: dest,
+      syscall: 'cp',
+      errno: EEXIST,
+    })
+  }
+}
+
+async function _copyFile (srcStat, src, dest, opts) {
+  await copyFile(src, dest)
+  if (opts.preserveTimestamps) {
+    return handleTimestampsAndMode(srcStat.mode, src, dest)
+  }
+  return setDestMode(dest, srcStat.mode)
+}
+
+async function handleTimestampsAndMode (srcMode, src, dest) {
+  // Make sure the file is writable before setting the timestamp
+  // otherwise open fails with EPERM when invoked with 'r+'
+  // (through utimes call)
+  if (fileIsNotWritable(srcMode)) {
+    await makeFileWritable(dest, srcMode)
+    return setDestTimestampsAndMode(srcMode, src, dest)
+  }
+  return setDestTimestampsAndMode(srcMode, src, dest)
+}
+
+function fileIsNotWritable (srcMode) {
+  return (srcMode & 0o200) === 0
+}
+
+function makeFileWritable (dest, srcMode) {
+  return setDestMode(dest, srcMode | 0o200)
+}
+
+async function setDestTimestampsAndMode (srcMode, src, dest) {
+  await setDestTimestamps(src, dest)
+  return setDestMode(dest, srcMode)
+}
+
+function setDestMode (dest, srcMode) {
+  return chmod(dest, srcMode)
+}
+
+async function setDestTimestamps (src, dest) {
+  // The initial srcStat.atime cannot be trusted
+  // because it is modified by the read(2) system call
+  // (See https://nodejs.org/api/fs.html#fs_stat_time_values)
+  const updatedSrcStat = await stat(src)
+  return utimes(dest, updatedSrcStat.atime, updatedSrcStat.mtime)
+}
+
+function onDir (srcStat, destStat, src, dest, opts) {
+  if (!destStat) {
+    return mkDirAndCopy(srcStat.mode, src, dest, opts)
+  }
+  return copyDir(src, dest, opts)
+}
+
+async function mkDirAndCopy (srcMode, src, dest, opts) {
+  await mkdir(dest)
+  await copyDir(src, dest, opts)
+  return setDestMode(dest, srcMode)
+}
+
+async function copyDir (src, dest, opts) {
+  const dir = await readdir(src)
+  for (let i = 0; i < dir.length; i++) {
+    const item = dir[i]
+    const srcItem = join(src, item)
+    const destItem = join(dest, item)
+    const { destStat } = await checkPaths(srcItem, destItem, opts)
+    await startCopy(destStat, srcItem, destItem, opts)
+  }
+}
+
+async function onLink (destStat, src, dest) {
+  let resolvedSrc = await readlink(src)
+  if (!isAbsolute(resolvedSrc)) {
+    resolvedSrc = resolve(dirname(src), resolvedSrc)
+  }
+  if (!destStat) {
+    return symlink(resolvedSrc, dest)
+  }
+  let resolvedDest
+  try {
+    resolvedDest = await readlink(dest)
+  } catch (err) {
+    // Dest exists and is a regular file or directory,
+    // Windows may throw UNKNOWN error. If dest already exists,
+    // fs throws error anyway, so no need to guard against it here.
+    // istanbul ignore next: can only test on windows
+    if (err.code === 'EINVAL' || err.code === 'UNKNOWN') {
+      return symlink(resolvedSrc, dest)
+    }
+    // istanbul ignore next: should not be possible
+    throw err
+  }
+  if (!isAbsolute(resolvedDest)) {
+    resolvedDest = resolve(dirname(dest), resolvedDest)
+  }
+  if (isSrcSubdir(resolvedSrc, resolvedDest)) {
+    throw new ERR_FS_CP_EINVAL({
+      message: `cannot copy ${resolvedSrc} to a subdirectory of self ` +
+            `${resolvedDest}`,
+      path: dest,
+      syscall: 'cp',
+      errno: EINVAL,
+    })
+  }
+  // Do not copy if src is a subdir of dest since unlinking
+  // dest in this case would result in removing src contents
+  // and therefore a broken symlink would be created.
+  const srcStat = await stat(src)
+  if (srcStat.isDirectory() && isSrcSubdir(resolvedDest, resolvedSrc)) {
+    throw new ERR_FS_CP_SYMLINK_TO_SUBDIRECTORY({
+      message: `cannot overwrite ${resolvedDest} with ${resolvedSrc}`,
+      path: dest,
+      syscall: 'cp',
+      errno: EINVAL,
+    })
+  }
+  return copyLink(resolvedSrc, dest)
+}
+
+async function copyLink (resolvedSrc, dest) {
+  await unlink(dest)
+  return symlink(resolvedSrc, dest)
+}
+
+module.exports = cp
diff --git a/node_modules/@npmcli/fs/lib/errors.js b/node_modules/@npmcli/fs/lib/errors.js
new file mode 100644
index 0000000..1cd1e05
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/errors.js
@@ -0,0 +1,129 @@
+'use strict'
+const { inspect } = require('util')
+
+// adapted from node's internal/errors
+// https://github.com/nodejs/node/blob/c8a04049/lib/internal/errors.js
+
+// close copy of node's internal SystemError class.
+class SystemError {
+  constructor (code, prefix, context) {
+    // XXX context.code is undefined in all constructors used in cp/polyfill
+    // that may be a bug copied from node, maybe the constructor should use
+    // `code` not `errno`?  nodejs/node#41104
+    let message = `${prefix}: ${context.syscall} returned ` +
+                  `${context.code} (${context.message})`
+
+    if (context.path !== undefined) {
+      message += ` ${context.path}`
+    }
+    if (context.dest !== undefined) {
+      message += ` => ${context.dest}`
+    }
+
+    this.code = code
+    Object.defineProperties(this, {
+      name: {
+        value: 'SystemError',
+        enumerable: false,
+        writable: true,
+        configurable: true,
+      },
+      message: {
+        value: message,
+        enumerable: false,
+        writable: true,
+        configurable: true,
+      },
+      info: {
+        value: context,
+        enumerable: true,
+        configurable: true,
+        writable: false,
+      },
+      errno: {
+        get () {
+          return context.errno
+        },
+        set (value) {
+          context.errno = value
+        },
+        enumerable: true,
+        configurable: true,
+      },
+      syscall: {
+        get () {
+          return context.syscall
+        },
+        set (value) {
+          context.syscall = value
+        },
+        enumerable: true,
+        configurable: true,
+      },
+    })
+
+    if (context.path !== undefined) {
+      Object.defineProperty(this, 'path', {
+        get () {
+          return context.path
+        },
+        set (value) {
+          context.path = value
+        },
+        enumerable: true,
+        configurable: true,
+      })
+    }
+
+    if (context.dest !== undefined) {
+      Object.defineProperty(this, 'dest', {
+        get () {
+          return context.dest
+        },
+        set (value) {
+          context.dest = value
+        },
+        enumerable: true,
+        configurable: true,
+      })
+    }
+  }
+
+  toString () {
+    return `${this.name} [${this.code}]: ${this.message}`
+  }
+
+  [Symbol.for('nodejs.util.inspect.custom')] (_recurseTimes, ctx) {
+    return inspect(this, {
+      ...ctx,
+      getters: true,
+      customInspect: false,
+    })
+  }
+}
+
+function E (code, message) {
+  module.exports[code] = class NodeError extends SystemError {
+    constructor (ctx) {
+      super(code, message, ctx)
+    }
+  }
+}
+
+E('ERR_FS_CP_DIR_TO_NON_DIR', 'Cannot overwrite directory with non-directory')
+E('ERR_FS_CP_EEXIST', 'Target already exists')
+E('ERR_FS_CP_EINVAL', 'Invalid src or dest')
+E('ERR_FS_CP_FIFO_PIPE', 'Cannot copy a FIFO pipe')
+E('ERR_FS_CP_NON_DIR_TO_DIR', 'Cannot overwrite non-directory with directory')
+E('ERR_FS_CP_SOCKET', 'Cannot copy a socket file')
+E('ERR_FS_CP_SYMLINK_TO_SUBDIRECTORY', 'Cannot overwrite symlink in subdirectory of self')
+E('ERR_FS_CP_UNKNOWN', 'Cannot copy an unknown file type')
+E('ERR_FS_EISDIR', 'Path is a directory')
+
+module.exports.ERR_INVALID_ARG_TYPE = class ERR_INVALID_ARG_TYPE extends Error {
+  constructor (name, expected, actual) {
+    super()
+    this.code = 'ERR_INVALID_ARG_TYPE'
+    this.message = `The ${name} argument must be ${expected}. Received ${typeof actual}`
+  }
+}
diff --git a/node_modules/@npmcli/fs/lib/fs.js b/node_modules/@npmcli/fs/lib/fs.js
new file mode 100644
index 0000000..29e5fb5
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/fs.js
@@ -0,0 +1,8 @@
+const fs = require('fs')
+const promisify = require('@gar/promisify')
+
+// this module returns the core fs module wrapped in a proxy that promisifies
+// method calls within the getter. we keep it in a separate module so that the
+// overridden methods have a consistent way to get to promisified fs methods
+// without creating a circular dependency
+module.exports = promisify(fs)
diff --git a/node_modules/@npmcli/fs/lib/index.js b/node_modules/@npmcli/fs/lib/index.js
new file mode 100644
index 0000000..e40d748
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/index.js
@@ -0,0 +1,10 @@
+module.exports = {
+  ...require('./fs.js'),
+  copyFile: require('./copy-file.js'),
+  cp: require('./cp/index.js'),
+  mkdir: require('./mkdir/index.js'),
+  mkdtemp: require('./mkdtemp.js'),
+  rm: require('./rm/index.js'),
+  withTempDir: require('./with-temp-dir.js'),
+  writeFile: require('./write-file.js'),
+}
diff --git a/node_modules/@npmcli/fs/lib/mkdir/index.js b/node_modules/@npmcli/fs/lib/mkdir/index.js
new file mode 100644
index 0000000..04ff447
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/mkdir/index.js
@@ -0,0 +1,32 @@
+const fs = require('../fs.js')
+const getOptions = require('../common/get-options.js')
+const node = require('../common/node.js')
+const owner = require('../common/owner.js')
+
+const polyfill = require('./polyfill.js')
+
+// node 10.12.0 added the options parameter, which allows recursive and mode
+// properties to be passed
+const useNative = node.satisfies('>=10.12.0')
+
+// extends mkdir with the ability to specify an owner of the new dir
+const mkdir = async (path, opts) => {
+  const options = getOptions(opts, {
+    copy: ['mode', 'recursive', 'owner'],
+    wrap: 'mode',
+  })
+  const { uid, gid } = await owner.validate(path, options.owner)
+
+  // the polyfill is tested separately from this module, no need to hack
+  // process.version to try to trigger it just for coverage
+  // istanbul ignore next
+  const result = useNative
+    ? await fs.mkdir(path, options)
+    : await polyfill(path, options)
+
+  await owner.update(path, uid, gid)
+
+  return result
+}
+
+module.exports = mkdir
diff --git a/node_modules/@npmcli/fs/lib/mkdir/polyfill.js b/node_modules/@npmcli/fs/lib/mkdir/polyfill.js
new file mode 100644
index 0000000..4f8e6f0
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/mkdir/polyfill.js
@@ -0,0 +1,81 @@
+const { dirname } = require('path')
+
+const fileURLToPath = require('../common/file-url-to-path/index.js')
+const fs = require('../fs.js')
+
+const defaultOptions = {
+  mode: 0o777,
+  recursive: false,
+}
+
+const mkdir = async (path, opts) => {
+  const options = { ...defaultOptions, ...opts }
+
+  // if we're not in recursive mode, just call the real mkdir with the path and
+  // the mode option only
+  if (!options.recursive) {
+    return fs.mkdir(path, options.mode)
+  }
+
+  const makeDirectory = async (dir, mode) => {
+    // we can't use dirname directly since these functions support URL
+    // objects with the file: protocol as the path input, so first we get a
+    // string path, then we can call dirname on that
+    const parent = dir != null && dir.href && dir.origin
+      ? dirname(fileURLToPath(dir))
+      : dirname(dir)
+
+    // if the parent is the dir itself, try to create it. anything but EISDIR
+    // should be rethrown
+    if (parent === dir) {
+      try {
+        await fs.mkdir(dir, opts)
+      } catch (err) {
+        if (err.code !== 'EISDIR') {
+          throw err
+        }
+      }
+      return undefined
+    }
+
+    try {
+      await fs.mkdir(dir, mode)
+      return dir
+    } catch (err) {
+      // ENOENT means the parent wasn't there, so create that
+      if (err.code === 'ENOENT') {
+        const made = await makeDirectory(parent, mode)
+        await makeDirectory(dir, mode)
+        // return the shallowest path we created, i.e. the result of creating
+        // the parent
+        return made
+      }
+
+      // an EEXIST means there's already something there
+      // an EROFS means we have a read-only filesystem and can't create a dir
+      // any other error is fatal and we should give up now
+      if (err.code !== 'EEXIST' && err.code !== 'EROFS') {
+        throw err
+      }
+
+      // stat the directory, if the result is a directory, then we successfully
+      // created this one so return its path. otherwise, we reject with the
+      // original error by ignoring the error in the catch
+      try {
+        const stat = await fs.stat(dir)
+        if (stat.isDirectory()) {
+          // if it already existed, we didn't create anything so return
+          // undefined
+          return undefined
+        }
+      } catch (_) {}
+
+      // if the thing that's there isn't a directory, then just re-throw
+      throw err
+    }
+  }
+
+  return makeDirectory(path, options.mode)
+}
+
+module.exports = mkdir
diff --git a/node_modules/@npmcli/fs/lib/mkdtemp.js b/node_modules/@npmcli/fs/lib/mkdtemp.js
new file mode 100644
index 0000000..b7f0780
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/mkdtemp.js
@@ -0,0 +1,28 @@
+const { dirname, sep } = require('path')
+
+const fs = require('./fs.js')
+const getOptions = require('./common/get-options.js')
+const owner = require('./common/owner.js')
+
+const mkdtemp = async (prefix, opts) => {
+  const options = getOptions(opts, {
+    copy: ['encoding', 'owner'],
+    wrap: 'encoding',
+  })
+
+  // mkdtemp relies on the trailing path separator to indicate if it should
+  // create a directory inside of the prefix. if that's the case then the root
+  // we infer ownership from is the prefix itself, otherwise it's the dirname
+  // /tmp -> /tmpABCDEF, infers from /
+  // /tmp/ -> /tmp/ABCDEF, infers from /tmp
+  const root = prefix.endsWith(sep) ? prefix : dirname(prefix)
+  const { uid, gid } = await owner.validate(root, options.owner)
+
+  const result = await fs.mkdtemp(prefix, options)
+
+  await owner.update(result, uid, gid)
+
+  return result
+}
+
+module.exports = mkdtemp
diff --git a/node_modules/@npmcli/fs/lib/rm/index.js b/node_modules/@npmcli/fs/lib/rm/index.js
new file mode 100644
index 0000000..cb81fbd
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/rm/index.js
@@ -0,0 +1,22 @@
+const fs = require('../fs.js')
+const getOptions = require('../common/get-options.js')
+const node = require('../common/node.js')
+const polyfill = require('./polyfill.js')
+
+// node 14.14.0 added fs.rm, which allows both the force and recursive options
+const useNative = node.satisfies('>=14.14.0')
+
+const rm = async (path, opts) => {
+  const options = getOptions(opts, {
+    copy: ['retryDelay', 'maxRetries', 'recursive', 'force'],
+  })
+
+  // the polyfill is tested separately from this module, no need to hack
+  // process.version to try to trigger it just for coverage
+  // istanbul ignore next
+  return useNative
+    ? fs.rm(path, options)
+    : polyfill(path, options)
+}
+
+module.exports = rm
diff --git a/node_modules/@npmcli/fs/lib/rm/polyfill.js b/node_modules/@npmcli/fs/lib/rm/polyfill.js
new file mode 100644
index 0000000..a25c174
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/rm/polyfill.js
@@ -0,0 +1,239 @@
+// this file is a modified version of the code in node core >=14.14.0
+// which is, in turn, a modified version of the rimraf module on npm
+// node core changes:
+// - Use of the assert module has been replaced with core's error system.
+// - All code related to the glob dependency has been removed.
+// - Bring your own custom fs module is not currently supported.
+// - Some basic code cleanup.
+// changes here:
+// - remove all callback related code
+// - drop sync support
+// - change assertions back to non-internal methods (see options.js)
+// - throws ENOTDIR when rmdir gets an ENOENT for a path that exists in Windows
+const errnos = require('os').constants.errno
+const { join } = require('path')
+const fs = require('../fs.js')
+
+// error codes that mean we need to remove contents
+const notEmptyCodes = new Set([
+  'ENOTEMPTY',
+  'EEXIST',
+  'EPERM',
+])
+
+// error codes we can retry later
+const retryCodes = new Set([
+  'EBUSY',
+  'EMFILE',
+  'ENFILE',
+  'ENOTEMPTY',
+  'EPERM',
+])
+
+const isWindows = process.platform === 'win32'
+
+const defaultOptions = {
+  retryDelay: 100,
+  maxRetries: 0,
+  recursive: false,
+  force: false,
+}
+
+// this is drastically simplified, but should be roughly equivalent to what
+// node core throws
+class ERR_FS_EISDIR extends Error {
+  constructor (path) {
+    super()
+    this.info = {
+      code: 'EISDIR',
+      message: 'is a directory',
+      path,
+      syscall: 'rm',
+      errno: errnos.EISDIR,
+    }
+    this.name = 'SystemError'
+    this.code = 'ERR_FS_EISDIR'
+    this.errno = errnos.EISDIR
+    this.syscall = 'rm'
+    this.path = path
+    this.message = `Path is a directory: ${this.syscall} returned ` +
+      `${this.info.code} (is a directory) ${path}`
+  }
+
+  toString () {
+    return `${this.name} [${this.code}]: ${this.message}`
+  }
+}
+
+class ENOTDIR extends Error {
+  constructor (path) {
+    super()
+    this.name = 'Error'
+    this.code = 'ENOTDIR'
+    this.errno = errnos.ENOTDIR
+    this.syscall = 'rmdir'
+    this.path = path
+    this.message = `not a directory, ${this.syscall} '${this.path}'`
+  }
+
+  toString () {
+    return `${this.name}: ${this.code}: ${this.message}`
+  }
+}
+
+// force is passed separately here because we respect it for the first entry
+// into rimraf only, any further calls that are spawned as a result (i.e. to
+// delete content within the target) will ignore ENOENT errors
+const rimraf = async (path, options, isTop = false) => {
+  const force = isTop ? options.force : true
+  const stat = await fs.lstat(path)
+    .catch((err) => {
+      // we only ignore ENOENT if we're forcing this call
+      if (err.code === 'ENOENT' && force) {
+        return
+      }
+
+      if (isWindows && err.code === 'EPERM') {
+        return fixEPERM(path, options, err, isTop)
+      }
+
+      throw err
+    })
+
+  // no stat object here means either lstat threw an ENOENT, or lstat threw
+  // an EPERM and the fixPERM function took care of things. either way, we're
+  // already done, so return early
+  if (!stat) {
+    return
+  }
+
+  if (stat.isDirectory()) {
+    return rmdir(path, options, null, isTop)
+  }
+
+  return fs.unlink(path)
+    .catch((err) => {
+      if (err.code === 'ENOENT' && force) {
+        return
+      }
+
+      if (err.code === 'EISDIR') {
+        return rmdir(path, options, err, isTop)
+      }
+
+      if (err.code === 'EPERM') {
+        // in windows, we handle this through fixEPERM which will also try to
+        // delete things again. everywhere else since deleting the target as a
+        // file didn't work we go ahead and try to delete it as a directory
+        return isWindows
+          ? fixEPERM(path, options, err, isTop)
+          : rmdir(path, options, err, isTop)
+      }
+
+      throw err
+    })
+}
+
+const fixEPERM = async (path, options, originalErr, isTop) => {
+  const force = isTop ? options.force : true
+  const targetMissing = await fs.chmod(path, 0o666)
+    .catch((err) => {
+      if (err.code === 'ENOENT' && force) {
+        return true
+      }
+
+      throw originalErr
+    })
+
+  // got an ENOENT above, return now. no file = no problem
+  if (targetMissing) {
+    return
+  }
+
+  // this function does its own lstat rather than calling rimraf again to avoid
+  // infinite recursion for a repeating EPERM
+  const stat = await fs.lstat(path)
+    .catch((err) => {
+      if (err.code === 'ENOENT' && force) {
+        return
+      }
+
+      throw originalErr
+    })
+
+  if (!stat) {
+    return
+  }
+
+  if (stat.isDirectory()) {
+    return rmdir(path, options, originalErr, isTop)
+  }
+
+  return fs.unlink(path)
+}
+
+const rmdir = async (path, options, originalErr, isTop) => {
+  if (!options.recursive && isTop) {
+    throw originalErr || new ERR_FS_EISDIR(path)
+  }
+  const force = isTop ? options.force : true
+
+  return fs.rmdir(path)
+    .catch(async (err) => {
+      // in Windows, calling rmdir on a file path will fail with ENOENT rather
+      // than ENOTDIR. to determine if that's what happened, we have to do
+      // another lstat on the path. if the path isn't actually gone, we throw
+      // away the ENOENT and replace it with our own ENOTDIR
+      if (isWindows && err.code === 'ENOENT') {
+        const stillExists = await fs.lstat(path).then(() => true, () => false)
+        if (stillExists) {
+          err = new ENOTDIR(path)
+        }
+      }
+
+      // not there, not a problem
+      if (err.code === 'ENOENT' && force) {
+        return
+      }
+
+      // we may not have originalErr if lstat tells us our target is a
+      // directory but that changes before we actually remove it, so
+      // only throw it here if it's set
+      if (originalErr && err.code === 'ENOTDIR') {
+        throw originalErr
+      }
+
+      // the directory isn't empty, remove the contents and try again
+      if (notEmptyCodes.has(err.code)) {
+        const files = await fs.readdir(path)
+        await Promise.all(files.map((file) => {
+          const target = join(path, file)
+          return rimraf(target, options)
+        }))
+        return fs.rmdir(path)
+      }
+
+      throw err
+    })
+}
+
+const rm = async (path, opts) => {
+  const options = { ...defaultOptions, ...opts }
+  let retries = 0
+
+  const errHandler = async (err) => {
+    if (retryCodes.has(err.code) && ++retries < options.maxRetries) {
+      const delay = retries * options.retryDelay
+      await promiseTimeout(delay)
+      return rimraf(path, options, true).catch(errHandler)
+    }
+
+    throw err
+  }
+
+  return rimraf(path, options, true).catch(errHandler)
+}
+
+const promiseTimeout = (ms) => new Promise((r) => setTimeout(r, ms))
+
+module.exports = rm
diff --git a/node_modules/@npmcli/fs/lib/with-temp-dir.js b/node_modules/@npmcli/fs/lib/with-temp-dir.js
new file mode 100644
index 0000000..353d555
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/with-temp-dir.js
@@ -0,0 +1,39 @@
+const { join, sep } = require('path')
+
+const getOptions = require('./common/get-options.js')
+const mkdir = require('./mkdir/index.js')
+const mkdtemp = require('./mkdtemp.js')
+const rm = require('./rm/index.js')
+
+// create a temp directory, ensure its permissions match its parent, then call
+// the supplied function passing it the path to the directory. clean up after
+// the function finishes, whether it throws or not
+const withTempDir = async (root, fn, opts) => {
+  const options = getOptions(opts, {
+    copy: ['tmpPrefix'],
+  })
+  // create the directory, and fix its ownership
+  await mkdir(root, { recursive: true, owner: 'inherit' })
+
+  const target = await mkdtemp(join(`${root}${sep}`, options.tmpPrefix || ''), { owner: 'inherit' })
+  let err
+  let result
+
+  try {
+    result = await fn(target)
+  } catch (_err) {
+    err = _err
+  }
+
+  try {
+    await rm(target, { force: true, recursive: true })
+  } catch (err) {}
+
+  if (err) {
+    throw err
+  }
+
+  return result
+}
+
+module.exports = withTempDir
diff --git a/node_modules/@npmcli/fs/lib/write-file.js b/node_modules/@npmcli/fs/lib/write-file.js
new file mode 100644
index 0000000..01de531
--- /dev/null
+++ b/node_modules/@npmcli/fs/lib/write-file.js
@@ -0,0 +1,19 @@
+const fs = require('./fs.js')
+const getOptions = require('./common/get-options.js')
+const owner = require('./common/owner.js')
+
+const writeFile = async (file, data, opts) => {
+  const options = getOptions(opts, {
+    copy: ['encoding', 'mode', 'flag', 'signal', 'owner'],
+    wrap: 'encoding',
+  })
+  const { uid, gid } = await owner.validate(file, options.owner)
+
+  const result = await fs.writeFile(file, data, options)
+
+  await owner.update(file, uid, gid)
+
+  return result
+}
+
+module.exports = writeFile
diff --git a/node_modules/@npmcli/fs/package.json b/node_modules/@npmcli/fs/package.json
new file mode 100644
index 0000000..0296aa7
--- /dev/null
+++ b/node_modules/@npmcli/fs/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "@npmcli/fs",
+  "version": "1.1.1",
+  "description": "filesystem utilities for the npm cli",
+  "main": "lib/index.js",
+  "files": [
+    "bin",
+    "lib"
+  ],
+  "scripts": {
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags",
+    "snap": "tap",
+    "test": "tap",
+    "npmclilint": "npmcli-lint",
+    "lint": "eslint '**/*.js'",
+    "lintfix": "npm run lint -- --fix",
+    "posttest": "npm run lint",
+    "postsnap": "npm run lintfix --",
+    "postlint": "npm-template-check"
+  },
+  "keywords": [
+    "npm",
+    "oss"
+  ],
+  "author": "GitHub Inc.",
+  "license": "ISC",
+  "devDependencies": {
+    "@npmcli/template-oss": "^2.3.1",
+    "tap": "^15.0.9"
+  },
+  "dependencies": {
+    "@gar/promisify": "^1.0.1",
+    "semver": "^7.3.5"
+  },
+  "templateVersion": "2.3.1"
+}
diff --git a/node_modules/@npmcli/move-file/LICENSE.md b/node_modules/@npmcli/move-file/LICENSE.md
new file mode 100644
index 0000000..072bf20
--- /dev/null
+++ b/node_modules/@npmcli/move-file/LICENSE.md
@@ -0,0 +1,22 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (https://sindresorhus.com)
+Copyright (c) npm, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/@npmcli/move-file/README.md b/node_modules/@npmcli/move-file/README.md
new file mode 100644
index 0000000..8a5a57f
--- /dev/null
+++ b/node_modules/@npmcli/move-file/README.md
@@ -0,0 +1,69 @@
+# @npmcli/move-file
+
+A fork of [move-file](https://github.com/sindresorhus/move-file) with
+compatibility with all node 10.x versions.
+
+> Move a file (or directory)
+
+The built-in
+[`fs.rename()`](https://nodejs.org/api/fs.html#fs_fs_rename_oldpath_newpath_callback)
+is just a JavaScript wrapper for the C `rename(2)` function, which doesn't
+support moving files across partitions or devices. This module is what you
+would have expected `fs.rename()` to be.
+
+## Highlights
+
+- Promise API.
+- Supports moving a file across partitions and devices.
+- Optionally prevent overwriting an existing file.
+- Creates non-existent destination directories for you.
+- Support for Node versions that lack built-in recursive `fs.mkdir()`
+- Automatically recurses when source is a directory.
+
+## Install
+
+```
+$ npm install @npmcli/move-file
+```
+
+## Usage
+
+```js
+const moveFile = require('@npmcli/move-file');
+
+(async () => {
+	await moveFile('source/unicorn.png', 'destination/unicorn.png');
+	console.log('The file has been moved');
+})();
+```
+
+## API
+
+### moveFile(source, destination, options?)
+
+Returns a `Promise` that resolves when the file has been moved.
+
+### moveFile.sync(source, destination, options?)
+
+#### source
+
+Type: `string`
+
+File, or directory, you want to move.
+
+#### destination
+
+Type: `string`
+
+Where you want the file or directory moved.
+
+#### options
+
+Type: `object`
+
+##### overwrite
+
+Type: `boolean`\
+Default: `true`
+
+Overwrite existing destination file(s).
diff --git a/node_modules/@npmcli/move-file/index.js b/node_modules/@npmcli/move-file/index.js
new file mode 100644
index 0000000..95d1888
--- /dev/null
+++ b/node_modules/@npmcli/move-file/index.js
@@ -0,0 +1,162 @@
+const { dirname, join, resolve, relative, isAbsolute } = require('path')
+const rimraf_ = require('rimraf')
+const { promisify } = require('util')
+const {
+  access: access_,
+  accessSync,
+  copyFile: copyFile_,
+  copyFileSync,
+  unlink: unlink_,
+  unlinkSync,
+  readdir: readdir_,
+  readdirSync,
+  rename: rename_,
+  renameSync,
+  stat: stat_,
+  statSync,
+  lstat: lstat_,
+  lstatSync,
+  symlink: symlink_,
+  symlinkSync,
+  readlink: readlink_,
+  readlinkSync
+} = require('fs')
+
+const access = promisify(access_)
+const copyFile = promisify(copyFile_)
+const unlink = promisify(unlink_)
+const readdir = promisify(readdir_)
+const rename = promisify(rename_)
+const stat = promisify(stat_)
+const lstat = promisify(lstat_)
+const symlink = promisify(symlink_)
+const readlink = promisify(readlink_)
+const rimraf = promisify(rimraf_)
+const rimrafSync = rimraf_.sync
+
+const mkdirp = require('mkdirp')
+
+const pathExists = async path => {
+  try {
+    await access(path)
+    return true
+  } catch (er) {
+    return er.code !== 'ENOENT'
+  }
+}
+
+const pathExistsSync = path => {
+  try {
+    accessSync(path)
+    return true
+  } catch (er) {
+    return er.code !== 'ENOENT'
+  }
+}
+
+const moveFile = async (source, destination, options = {}, root = true, symlinks = []) => {
+  if (!source || !destination) {
+    throw new TypeError('`source` and `destination` file required')
+  }
+
+  options = {
+    overwrite: true,
+    ...options
+  }
+
+  if (!options.overwrite && await pathExists(destination)) {
+    throw new Error(`The destination file exists: ${destination}`)
+  }
+
+  await mkdirp(dirname(destination))
+
+  try {
+    await rename(source, destination)
+  } catch (error) {
+    if (error.code === 'EXDEV' || error.code === 'EPERM') {
+      const sourceStat = await lstat(source)
+      if (sourceStat.isDirectory()) {
+        const files = await readdir(source)
+        await Promise.all(files.map((file) => moveFile(join(source, file), join(destination, file), options, false, symlinks)))
+      } else if (sourceStat.isSymbolicLink()) {
+        symlinks.push({ source, destination })
+      } else {
+        await copyFile(source, destination)
+      }
+    } else {
+      throw error
+    }
+  }
+
+  if (root) {
+    await Promise.all(symlinks.map(async ({ source, destination }) => {
+      let target = await readlink(source)
+      // junction symlinks in windows will be absolute paths, so we need to make sure they point to the destination
+      if (isAbsolute(target))
+        target = resolve(destination, relative(source, target))
+      // try to determine what the actual file is so we can create the correct type of symlink in windows
+      let targetStat
+      try {
+        targetStat = await stat(resolve(dirname(source), target))
+      } catch (err) {}
+      await symlink(target, destination, targetStat && targetStat.isDirectory() ? 'junction' : 'file')
+    }))
+    await rimraf(source)
+  }
+}
+
+const moveFileSync = (source, destination, options = {}, root = true, symlinks = []) => {
+  if (!source || !destination) {
+    throw new TypeError('`source` and `destination` file required')
+  }
+
+  options = {
+    overwrite: true,
+    ...options
+  }
+
+  if (!options.overwrite && pathExistsSync(destination)) {
+    throw new Error(`The destination file exists: ${destination}`)
+  }
+
+  mkdirp.sync(dirname(destination))
+
+  try {
+    renameSync(source, destination)
+  } catch (error) {
+    if (error.code === 'EXDEV' || error.code === 'EPERM') {
+      const sourceStat = lstatSync(source)
+      if (sourceStat.isDirectory()) {
+        const files = readdirSync(source)
+        for (const file of files) {
+          moveFileSync(join(source, file), join(destination, file), options, false, symlinks)
+        }
+      } else if (sourceStat.isSymbolicLink()) {
+        symlinks.push({ source, destination })
+      } else {
+        copyFileSync(source, destination)
+      }
+    } else {
+      throw error
+    }
+  }
+
+  if (root) {
+    for (const { source, destination } of symlinks) {
+      let target = readlinkSync(source)
+      // junction symlinks in windows will be absolute paths, so we need to make sure they point to the destination
+      if (isAbsolute(target))
+        target = resolve(destination, relative(source, target))
+      // try to determine what the actual file is so we can create the correct type of symlink in windows
+      let targetStat
+      try {
+        targetStat = statSync(resolve(dirname(source), target))
+      } catch (err) {}
+      symlinkSync(target, destination, targetStat && targetStat.isDirectory() ? 'junction' : 'file')
+    }
+    rimrafSync(source)
+  }
+}
+
+module.exports = moveFile
+module.exports.sync = moveFileSync
diff --git a/node_modules/@npmcli/move-file/package.json b/node_modules/@npmcli/move-file/package.json
new file mode 100644
index 0000000..0c066db
--- /dev/null
+++ b/node_modules/@npmcli/move-file/package.json
@@ -0,0 +1,34 @@
+{
+  "name": "@npmcli/move-file",
+  "version": "1.1.2",
+  "files": [
+    "index.js"
+  ],
+  "description": "move a file (fork of move-file)",
+  "dependencies": {
+    "mkdirp": "^1.0.4",
+    "rimraf": "^3.0.2"
+  },
+  "devDependencies": {
+    "require-inject": "^1.4.4",
+    "tap": "^14.10.7"
+  },
+  "scripts": {
+    "test": "tap",
+    "snap": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/npm/move-file"
+  },
+  "tap": {
+    "check-coverage": true
+  },
+  "license": "MIT",
+  "engines": {
+    "node": ">=10"
+  }
+}
diff --git a/node_modules/@socket.io/cluster-adapter/LICENSE b/node_modules/@socket.io/cluster-adapter/LICENSE
new file mode 100644
index 0000000..afc17bc
--- /dev/null
+++ b/node_modules/@socket.io/cluster-adapter/LICENSE
@@ -0,0 +1,7 @@
+Copyright (c) 2021 Damien Arrachequesne (@darrachequesne)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/@socket.io/cluster-adapter/README.md b/node_modules/@socket.io/cluster-adapter/README.md
new file mode 100644
index 0000000..0f66edb
--- /dev/null
+++ b/node_modules/@socket.io/cluster-adapter/README.md
@@ -0,0 +1,100 @@
+# Socket.IO cluster adapter
+
+The `@socket.io/cluster-adapter` package allows broadcasting packets between multiple Socket.IO servers.
+
+![Adapter diagram](./assets/adapter.png)
+
+It can be used in conjunction with [`@socket.io/sticky`](https://github.com/socketio/socket.io-sticky) to broadcast packets between the workers of the same Node.js [cluster](https://nodejs.org/api/cluster.html).
+
+Supported features:
+
+- [broadcasting](https://socket.io/docs/v4/broadcasting-events/)
+- [utility methods](https://socket.io/docs/v4/server-instance/#Utility-methods)
+  - [`socketsJoin`](https://socket.io/docs/v4/server-instance/#socketsJoin)
+  - [`socketsLeave`](https://socket.io/docs/v4/server-instance/#socketsLeave)
+  - [`disconnectSockets`](https://socket.io/docs/v4/server-instance/#disconnectSockets)
+  - [`fetchSockets`](https://socket.io/docs/v4/server-instance/#fetchSockets)
+  - [`serverSideEmit`](https://socket.io/docs/v4/server-instance/#serverSideEmit)
+
+Related packages:
+
+- Postgres adapter: https://github.com/socketio/socket.io-postgres-adapter/
+- Redis adapter: https://github.com/socketio/socket.io-redis-adapter/
+- MongoDB adapter: https://github.com/socketio/socket.io-mongo-adapter/
+
+**Table of contents**
+
+- [Installation](#installation)
+- [Usage](#usage)
+- [License](#license)
+
+## Installation
+
+```
+npm install @socket.io/cluster-adapter
+```
+
+## Usage
+
+```js
+const cluster = require("cluster");
+const http = require("http");
+const { Server } = require("socket.io");
+const numCPUs = require("os").cpus().length;
+const { setupMaster, setupWorker } = require("@socket.io/sticky");
+const { createAdapter, setupPrimary } = require("@socket.io/cluster-adapter");
+
+if (cluster.isMaster) {
+  console.log(`Master ${process.pid} is running`);
+
+  const httpServer = http.createServer();
+
+  // setup sticky sessions
+  setupMaster(httpServer, {
+    loadBalancingMethod: "least-connection",
+  });
+
+  // setup connections between the workers
+  setupPrimary();
+
+  // needed for packets containing buffers (you can ignore it if you only send plaintext objects)
+  // Node.js < 16.0.0
+  cluster.setupMaster({
+    serialization: "advanced",
+  });
+  // Node.js > 16.0.0
+  // cluster.setupPrimary({
+  //   serialization: "advanced",
+  // });
+
+  httpServer.listen(3000);
+
+  for (let i = 0; i < numCPUs; i++) {
+    cluster.fork();
+  }
+
+  cluster.on("exit", (worker) => {
+    console.log(`Worker ${worker.process.pid} died`);
+    cluster.fork();
+  });
+} else {
+  console.log(`Worker ${process.pid} started`);
+
+  const httpServer = http.createServer();
+  const io = new Server(httpServer);
+
+  // use the cluster adapter
+  io.adapter(createAdapter());
+
+  // setup connection with the primary process
+  setupWorker(io);
+
+  io.on("connection", (socket) => {
+    /* ... */
+  });
+}
+```
+
+## License
+
+[MIT](LICENSE)
diff --git a/node_modules/@socket.io/cluster-adapter/dist/index.d.ts b/node_modules/@socket.io/cluster-adapter/dist/index.d.ts
new file mode 100644
index 0000000..a63ade9
--- /dev/null
+++ b/node_modules/@socket.io/cluster-adapter/dist/index.d.ts
@@ -0,0 +1,52 @@
+import { Adapter, BroadcastOptions, Room } from "socket.io-adapter";
+export interface ClusterAdapterOptions {
+    /**
+     * after this timeout the adapter will stop waiting from responses to request
+     * @default 5000
+     */
+    requestsTimeout: number;
+}
+/**
+ * Returns a function that will create a ClusterAdapter instance.
+ *
+ * @param opts - additional options
+ *
+ * @public
+ */
+export declare function createAdapter(opts?: Partial<ClusterAdapterOptions>): (nsp: any) => ClusterAdapter;
+export declare class ClusterAdapter extends Adapter {
+    requestsTimeout: number;
+    private workerIds;
+    private requests;
+    private ackRequests;
+    /**
+     * Adapter constructor.
+     *
+     * @param nsp - the namespace
+     * @param opts - additional options
+     *
+     * @public
+     */
+    constructor(nsp: any, opts?: Partial<ClusterAdapterOptions>);
+    onMessage(message: any): Promise<void>;
+    private publish;
+    /**
+     * Transform ES6 Set into plain arrays.
+     *
+     * Note: we manually serialize ES6 Sets so that using `serialization: "advanced"` is not needed when using plaintext
+     * packets (reference: https://nodejs.org/api/child_process.html#child_process_advanced_serialization)
+     */
+    private static serializeOptions;
+    private static deserializeOptions;
+    broadcast(packet: any, opts: BroadcastOptions): void;
+    broadcastWithAck(packet: any, opts: BroadcastOptions, clientCountCallback: (clientCount: number) => void, ack: (...args: any[]) => void): void;
+    serverCount(): Promise<number>;
+    addSockets(opts: BroadcastOptions, rooms: Room[]): void;
+    delSockets(opts: BroadcastOptions, rooms: Room[]): void;
+    disconnectSockets(opts: BroadcastOptions, close: boolean): void;
+    private getExpectedResponseCount;
+    fetchSockets(opts: BroadcastOptions): Promise<any[]>;
+    serverSideEmit(packet: any[]): void;
+    private serverSideEmitWithAck;
+}
+export declare function setupPrimary(): void;
diff --git a/node_modules/@socket.io/cluster-adapter/dist/index.js b/node_modules/@socket.io/cluster-adapter/dist/index.js
new file mode 100644
index 0000000..8d6d7db
--- /dev/null
+++ b/node_modules/@socket.io/cluster-adapter/dist/index.js
@@ -0,0 +1,470 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.setupPrimary = exports.ClusterAdapter = exports.createAdapter = void 0;
+const cluster = require("cluster");
+const socket_io_adapter_1 = require("socket.io-adapter");
+const crypto_1 = require("crypto");
+const randomId = () => crypto_1.randomBytes(8).toString("hex");
+const debug = require("debug")("socket.io-cluster-adapter");
+const MESSAGE_SOURCE = "_sio_adapter";
+const hasOwnProperty = Object.prototype.hasOwnProperty;
+/**
+ * Event types, for messages between nodes
+ */
+var EventType;
+(function (EventType) {
+    EventType[EventType["WORKER_INIT"] = 1] = "WORKER_INIT";
+    EventType[EventType["WORKER_PING"] = 2] = "WORKER_PING";
+    EventType[EventType["WORKER_EXIT"] = 3] = "WORKER_EXIT";
+    EventType[EventType["BROADCAST"] = 4] = "BROADCAST";
+    EventType[EventType["SOCKETS_JOIN"] = 5] = "SOCKETS_JOIN";
+    EventType[EventType["SOCKETS_LEAVE"] = 6] = "SOCKETS_LEAVE";
+    EventType[EventType["DISCONNECT_SOCKETS"] = 7] = "DISCONNECT_SOCKETS";
+    EventType[EventType["FETCH_SOCKETS"] = 8] = "FETCH_SOCKETS";
+    EventType[EventType["FETCH_SOCKETS_RESPONSE"] = 9] = "FETCH_SOCKETS_RESPONSE";
+    EventType[EventType["SERVER_SIDE_EMIT"] = 10] = "SERVER_SIDE_EMIT";
+    EventType[EventType["SERVER_SIDE_EMIT_RESPONSE"] = 11] = "SERVER_SIDE_EMIT_RESPONSE";
+    EventType[EventType["BROADCAST_CLIENT_COUNT"] = 12] = "BROADCAST_CLIENT_COUNT";
+    EventType[EventType["BROADCAST_ACK"] = 13] = "BROADCAST_ACK";
+})(EventType || (EventType = {}));
+function ignoreError() { }
+/**
+ * Returns a function that will create a ClusterAdapter instance.
+ *
+ * @param opts - additional options
+ *
+ * @public
+ */
+function createAdapter(opts = {}) {
+    return function (nsp) {
+        return new ClusterAdapter(nsp, opts);
+    };
+}
+exports.createAdapter = createAdapter;
+class ClusterAdapter extends socket_io_adapter_1.Adapter {
+    /**
+     * Adapter constructor.
+     *
+     * @param nsp - the namespace
+     * @param opts - additional options
+     *
+     * @public
+     */
+    constructor(nsp, opts = {}) {
+        super(nsp);
+        this.workerIds = new Set();
+        this.requests = new Map();
+        this.ackRequests = new Map();
+        this.requestsTimeout = opts.requestsTimeout || 5000;
+        this.publish({
+            type: EventType.WORKER_INIT,
+            data: cluster.worker.id,
+        });
+        process.on("message", this.onMessage.bind(this));
+    }
+    async onMessage(message) {
+        const isValidSource = (message === null || message === void 0 ? void 0 : message.source) === MESSAGE_SOURCE;
+        if (!isValidSource) {
+            return;
+        }
+        if (message.type === EventType.WORKER_EXIT) {
+            this.workerIds.delete(message.data);
+            debug("workers count is now %d", this.workerIds.size);
+            return;
+        }
+        if (message.nsp !== this.nsp.name) {
+            debug("ignore other namespace");
+            return;
+        }
+        switch (message.type) {
+            case EventType.WORKER_INIT:
+                this.workerIds.add(message.data);
+                debug("workers count is now %d", this.workerIds.size);
+                this.publish({
+                    type: EventType.WORKER_PING,
+                    data: cluster.worker.id,
+                });
+                break;
+            case EventType.WORKER_PING:
+                this.workerIds.add(message.data);
+                debug("workers count is now %d", this.workerIds.size);
+                break;
+            case EventType.BROADCAST: {
+                debug("broadcast with opts %j", message.data.opts);
+                const withAck = message.data.requestId !== undefined;
+                if (withAck) {
+                    super.broadcastWithAck(message.data.packet, ClusterAdapter.deserializeOptions(message.data.opts), (clientCount) => {
+                        debug("waiting for %d client acknowledgements", clientCount);
+                        this.publish({
+                            type: EventType.BROADCAST_CLIENT_COUNT,
+                            data: {
+                                requestId: message.data.requestId,
+                                clientCount,
+                            },
+                        });
+                    }, (arg) => {
+                        debug("received acknowledgement with value %j", arg);
+                        this.publish({
+                            type: EventType.BROADCAST_ACK,
+                            data: {
+                                requestId: message.data.requestId,
+                                packet: arg,
+                            },
+                        });
+                    });
+                }
+                else {
+                    super.broadcast(message.data.packet, ClusterAdapter.deserializeOptions(message.data.opts));
+                }
+                break;
+            }
+            case EventType.BROADCAST_CLIENT_COUNT: {
+                const request = this.ackRequests.get(message.data.requestId);
+                request === null || request === void 0 ? void 0 : request.clientCountCallback(message.data.clientCount);
+                break;
+            }
+            case EventType.BROADCAST_ACK: {
+                const request = this.ackRequests.get(message.data.requestId);
+                request === null || request === void 0 ? void 0 : request.ack(message.data.packet);
+                break;
+            }
+            case EventType.SOCKETS_JOIN: {
+                debug("calling addSockets with opts %j", message.data.opts);
+                super.addSockets(ClusterAdapter.deserializeOptions(message.data.opts), message.data.rooms);
+                break;
+            }
+            case EventType.SOCKETS_LEAVE: {
+                debug("calling delSockets with opts %j", message.data.opts);
+                super.delSockets(ClusterAdapter.deserializeOptions(message.data.opts), message.data.rooms);
+                break;
+            }
+            case EventType.DISCONNECT_SOCKETS: {
+                debug("calling disconnectSockets with opts %j", message.data.opts);
+                super.disconnectSockets(ClusterAdapter.deserializeOptions(message.data.opts), message.data.close);
+                break;
+            }
+            case EventType.FETCH_SOCKETS: {
+                debug("calling fetchSockets with opts %j", message.data.opts);
+                const localSockets = await super.fetchSockets(ClusterAdapter.deserializeOptions(message.data.opts));
+                this.publish({
+                    type: EventType.FETCH_SOCKETS_RESPONSE,
+                    data: {
+                        requestId: message.data.requestId,
+                        workerId: message.data.workerId,
+                        sockets: localSockets.map((socket) => ({
+                            id: socket.id,
+                            handshake: socket.handshake,
+                            rooms: [...socket.rooms],
+                            data: socket.data,
+                        })),
+                    },
+                });
+                break;
+            }
+            case EventType.FETCH_SOCKETS_RESPONSE: {
+                const request = this.requests.get(message.data.requestId);
+                if (!request) {
+                    return;
+                }
+                request.current++;
+                message.data.sockets.forEach((socket) => request.responses.push(socket));
+                if (request.current === request.expected) {
+                    clearTimeout(request.timeout);
+                    request.resolve(request.responses);
+                    this.requests.delete(message.data.requestId);
+                }
+                break;
+            }
+            case EventType.SERVER_SIDE_EMIT: {
+                const packet = message.data.packet;
+                const withAck = message.data.requestId !== undefined;
+                if (!withAck) {
+                    this.nsp._onServerSideEmit(packet);
+                    return;
+                }
+                let called = false;
+                const callback = (arg) => {
+                    // only one argument is expected
+                    if (called) {
+                        return;
+                    }
+                    called = true;
+                    debug("calling acknowledgement with %j", arg);
+                    this.publish({
+                        type: EventType.SERVER_SIDE_EMIT_RESPONSE,
+                        data: {
+                            requestId: message.data.requestId,
+                            workerId: message.data.workerId,
+                            packet: arg,
+                        },
+                    });
+                };
+                packet.push(callback);
+                this.nsp._onServerSideEmit(packet);
+                break;
+            }
+            case EventType.SERVER_SIDE_EMIT_RESPONSE: {
+                const request = this.requests.get(message.data.requestId);
+                if (!request) {
+                    return;
+                }
+                request.current++;
+                request.responses.push(message.data.packet);
+                if (request.current === request.expected) {
+                    clearTimeout(request.timeout);
+                    request.resolve(null, request.responses);
+                    this.requests.delete(message.data.requestId);
+                }
+            }
+        }
+    }
+    async publish(message) {
+        // to be able to ignore unrelated messages on the cluster message bus
+        message.source = MESSAGE_SOURCE;
+        // to be able to ignore messages from other namespaces
+        message.nsp = this.nsp.name;
+        debug("publish event of type %s for namespace %s", message.type, message.nsp);
+        process.send(message, null, { swallowErrors: true }, ignoreError);
+    }
+    /**
+     * Transform ES6 Set into plain arrays.
+     *
+     * Note: we manually serialize ES6 Sets so that using `serialization: "advanced"` is not needed when using plaintext
+     * packets (reference: https://nodejs.org/api/child_process.html#child_process_advanced_serialization)
+     */
+    static serializeOptions(opts) {
+        return {
+            rooms: [...opts.rooms],
+            except: opts.except ? [...opts.except] : [],
+            flags: opts.flags,
+        };
+    }
+    static deserializeOptions(opts) {
+        return {
+            rooms: new Set(opts.rooms),
+            except: new Set(opts.except),
+            flags: opts.flags,
+        };
+    }
+    broadcast(packet, opts) {
+        var _a;
+        const onlyLocal = (_a = opts === null || opts === void 0 ? void 0 : opts.flags) === null || _a === void 0 ? void 0 : _a.local;
+        if (!onlyLocal) {
+            this.publish({
+                type: EventType.BROADCAST,
+                data: {
+                    packet,
+                    opts: ClusterAdapter.serializeOptions(opts),
+                },
+            });
+        }
+        // packets with binary contents are modified by the broadcast method, hence the nextTick()
+        process.nextTick(() => {
+            super.broadcast(packet, opts);
+        });
+    }
+    broadcastWithAck(packet, opts, clientCountCallback, ack) {
+        var _a;
+        const onlyLocal = (_a = opts === null || opts === void 0 ? void 0 : opts.flags) === null || _a === void 0 ? void 0 : _a.local;
+        if (!onlyLocal) {
+            const requestId = randomId();
+            this.publish({
+                type: EventType.BROADCAST,
+                data: {
+                    packet,
+                    requestId,
+                    opts: ClusterAdapter.serializeOptions(opts),
+                },
+            });
+            this.ackRequests.set(requestId, {
+                type: EventType.BROADCAST,
+                clientCountCallback,
+                ack,
+            });
+            // we have no way to know at this level whether the server has received an acknowledgement from each client, so we
+            // will simply clean up the ackRequests map after the given delay
+            setTimeout(() => {
+                this.ackRequests.delete(requestId);
+            }, opts.flags.timeout);
+        }
+        // packets with binary contents are modified by the broadcast method, hence the nextTick()
+        process.nextTick(() => {
+            super.broadcastWithAck(packet, opts, clientCountCallback, ack);
+        });
+    }
+    serverCount() {
+        return Promise.resolve(1 + this.workerIds.size);
+    }
+    addSockets(opts, rooms) {
+        var _a;
+        super.addSockets(opts, rooms);
+        const onlyLocal = (_a = opts.flags) === null || _a === void 0 ? void 0 : _a.local;
+        if (onlyLocal) {
+            return;
+        }
+        this.publish({
+            type: EventType.SOCKETS_JOIN,
+            data: {
+                opts: ClusterAdapter.serializeOptions(opts),
+                rooms,
+            },
+        });
+    }
+    delSockets(opts, rooms) {
+        var _a;
+        super.delSockets(opts, rooms);
+        const onlyLocal = (_a = opts.flags) === null || _a === void 0 ? void 0 : _a.local;
+        if (onlyLocal) {
+            return;
+        }
+        this.publish({
+            type: EventType.SOCKETS_LEAVE,
+            data: {
+                opts: ClusterAdapter.serializeOptions(opts),
+                rooms,
+            },
+        });
+    }
+    disconnectSockets(opts, close) {
+        var _a;
+        super.disconnectSockets(opts, close);
+        const onlyLocal = (_a = opts.flags) === null || _a === void 0 ? void 0 : _a.local;
+        if (onlyLocal) {
+            return;
+        }
+        this.publish({
+            type: EventType.DISCONNECT_SOCKETS,
+            data: {
+                opts: ClusterAdapter.serializeOptions(opts),
+                close,
+            },
+        });
+    }
+    getExpectedResponseCount() {
+        return this.workerIds.size;
+    }
+    async fetchSockets(opts) {
+        var _a;
+        const localSockets = await super.fetchSockets(opts);
+        const expectedResponseCount = this.getExpectedResponseCount();
+        if (((_a = opts.flags) === null || _a === void 0 ? void 0 : _a.local) || expectedResponseCount === 0) {
+            return localSockets;
+        }
+        const requestId = randomId();
+        return new Promise((resolve, reject) => {
+            const timeout = setTimeout(() => {
+                const storedRequest = this.requests.get(requestId);
+                if (storedRequest) {
+                    reject(new Error(`timeout reached: only ${storedRequest.current} responses received out of ${storedRequest.expected}`));
+                    this.requests.delete(requestId);
+                }
+            }, this.requestsTimeout);
+            const storedRequest = {
+                type: EventType.FETCH_SOCKETS,
+                resolve,
+                timeout,
+                current: 0,
+                expected: expectedResponseCount,
+                responses: localSockets,
+            };
+            this.requests.set(requestId, storedRequest);
+            this.publish({
+                type: EventType.FETCH_SOCKETS,
+                data: {
+                    requestId,
+                    workerId: cluster.worker.id,
+                    opts: ClusterAdapter.serializeOptions(opts),
+                },
+            });
+        });
+    }
+    serverSideEmit(packet) {
+        const withAck = typeof packet[packet.length - 1] === "function";
+        if (withAck) {
+            this.serverSideEmitWithAck(packet).catch(() => {
+                // ignore errors
+            });
+            return;
+        }
+        this.publish({
+            type: EventType.SERVER_SIDE_EMIT,
+            data: {
+                packet,
+            },
+        });
+    }
+    async serverSideEmitWithAck(packet) {
+        const ack = packet.pop();
+        const expectedResponseCount = this.getExpectedResponseCount();
+        debug('waiting for %d responses to "serverSideEmit" request', expectedResponseCount);
+        if (expectedResponseCount <= 0) {
+            return ack(null, []);
+        }
+        const requestId = randomId();
+        const timeout = setTimeout(() => {
+            const storedRequest = this.requests.get(requestId);
+            if (storedRequest) {
+                ack(new Error(`timeout reached: only ${storedRequest.current} responses received out of ${storedRequest.expected}`), storedRequest.responses);
+                this.requests.delete(requestId);
+            }
+        }, this.requestsTimeout);
+        const storedRequest = {
+            type: EventType.FETCH_SOCKETS,
+            resolve: ack,
+            timeout,
+            current: 0,
+            expected: expectedResponseCount,
+            responses: [],
+        };
+        this.requests.set(requestId, storedRequest);
+        this.publish({
+            type: EventType.SERVER_SIDE_EMIT,
+            data: {
+                requestId,
+                workerId: cluster.worker.id,
+                packet,
+            },
+        });
+    }
+}
+exports.ClusterAdapter = ClusterAdapter;
+function setupPrimary() {
+    cluster.on("message", (worker, message) => {
+        const isValidSource = (message === null || message === void 0 ? void 0 : message.source) === MESSAGE_SOURCE;
+        if (!isValidSource) {
+            return;
+        }
+        switch (message.type) {
+            case EventType.FETCH_SOCKETS_RESPONSE:
+            case EventType.SERVER_SIDE_EMIT_RESPONSE:
+                const workerId = message.data.workerId;
+                // emit back to the requester
+                if (hasOwnProperty.call(cluster.workers, workerId)) {
+                    cluster.workers[workerId].send(message, null, ignoreError);
+                }
+                break;
+            default:
+                const emitterIdAsString = "" + worker.id;
+                // emit to all workers but the requester
+                for (const workerId in cluster.workers) {
+                    if (hasOwnProperty.call(cluster.workers, workerId) &&
+                        workerId !== emitterIdAsString) {
+                        cluster.workers[workerId].send(message, null, ignoreError);
+                    }
+                }
+        }
+    });
+    cluster.on("exit", (worker) => {
+        // notify all active workers
+        for (const workerId in cluster.workers) {
+            if (hasOwnProperty.call(cluster.workers, workerId)) {
+                cluster.workers[workerId].send({
+                    source: MESSAGE_SOURCE,
+                    type: EventType.WORKER_EXIT,
+                    data: worker.id,
+                }, null, ignoreError);
+            }
+        }
+    });
+}
+exports.setupPrimary = setupPrimary;
diff --git a/node_modules/@socket.io/cluster-adapter/package.json b/node_modules/@socket.io/cluster-adapter/package.json
new file mode 100644
index 0000000..c1f02c9
--- /dev/null
+++ b/node_modules/@socket.io/cluster-adapter/package.json
@@ -0,0 +1,48 @@
+{
+  "name": "@socket.io/cluster-adapter",
+  "version": "0.2.2",
+  "description": "The Socket.IO cluster adapter, allowing to broadcast events between several Socket.IO servers",
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git@github.com:socketio/socket.io-cluster-adapter.git"
+  },
+  "files": [
+    "dist/"
+  ],
+  "main": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "scripts": {
+    "test": "npm run format:check && tsc && nyc mocha --require ts-node/register test/index.ts",
+    "format:check": "prettier --parser typescript --check 'lib/**/*.ts' 'test/**/*.ts'",
+    "format:fix": "prettier --parser typescript --write 'lib/**/*.ts' 'test/**/*.ts'",
+    "prepack": "tsc"
+  },
+  "dependencies": {
+    "debug": "~4.3.1"
+  },
+  "peerDependencies": {
+    "socket.io-adapter": "^2.4.0"
+  },
+  "devDependencies": {
+    "@types/expect.js": "^0.3.29",
+    "@types/mocha": "^10.0.0",
+    "@types/node": "^15.12.4",
+    "expect.js": "0.3.1",
+    "mocha": "^10.0.0",
+    "nyc": "^15.1.0",
+    "prettier": "^2.1.2",
+    "socket.io": "^4.6.1",
+    "socket.io-client": "^4.1.1",
+    "ts-node": "^9.1.1",
+    "typescript": "^4.0.5"
+  },
+  "engines": {
+    "node": ">=10.0.0"
+  },
+  "keywords": [
+    "socket.io",
+    "cluster",
+    "adapter"
+  ]
+}
diff --git a/node_modules/@tootallnate/once/dist/index.d.ts b/node_modules/@tootallnate/once/dist/index.d.ts
new file mode 100644
index 0000000..a7efe94
--- /dev/null
+++ b/node_modules/@tootallnate/once/dist/index.d.ts
@@ -0,0 +1,14 @@
+/// <reference types="node" />
+import { EventEmitter } from 'events';
+declare function once<T>(emitter: EventEmitter, name: string): once.CancelablePromise<T>;
+declare namespace once {
+    interface CancelFunction {
+        (): void;
+    }
+    interface CancelablePromise<T> extends Promise<T> {
+        cancel: CancelFunction;
+    }
+    type CancellablePromise<T> = CancelablePromise<T>;
+    function spread<T extends any[]>(emitter: EventEmitter, name: string): once.CancelablePromise<T>;
+}
+export = once;
diff --git a/node_modules/@tootallnate/once/dist/index.js b/node_modules/@tootallnate/once/dist/index.js
new file mode 100644
index 0000000..bfd0dc8
--- /dev/null
+++ b/node_modules/@tootallnate/once/dist/index.js
@@ -0,0 +1,39 @@
+"use strict";
+function noop() { }
+function once(emitter, name) {
+    const o = once.spread(emitter, name);
+    const r = o.then((args) => args[0]);
+    r.cancel = o.cancel;
+    return r;
+}
+(function (once) {
+    function spread(emitter, name) {
+        let c = null;
+        const p = new Promise((resolve, reject) => {
+            function cancel() {
+                emitter.removeListener(name, onEvent);
+                emitter.removeListener('error', onError);
+                p.cancel = noop;
+            }
+            function onEvent(...args) {
+                cancel();
+                resolve(args);
+            }
+            function onError(err) {
+                cancel();
+                reject(err);
+            }
+            c = cancel;
+            emitter.on(name, onEvent);
+            emitter.on('error', onError);
+        });
+        if (!c) {
+            throw new TypeError('Could not get `cancel()` function');
+        }
+        p.cancel = c;
+        return p;
+    }
+    once.spread = spread;
+})(once || (once = {}));
+module.exports = once;
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/node_modules/@tootallnate/once/dist/index.js.map b/node_modules/@tootallnate/once/dist/index.js.map
new file mode 100644
index 0000000..30d2049
--- /dev/null
+++ b/node_modules/@tootallnate/once/dist/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";AAEA,SAAS,IAAI,KAAI,CAAC;AAElB,SAAS,IAAI,CACZ,OAAqB,EACrB,IAAY;IAEZ,MAAM,CAAC,GAAG,IAAI,CAAC,MAAM,CAAM,OAAO,EAAE,IAAI,CAAC,CAAC;IAC1C,MAAM,CAAC,GAAG,CAAC,CAAC,IAAI,CAAC,CAAC,IAAS,EAAE,EAAE,CAAC,IAAI,CAAC,CAAC,CAAC,CAA8B,CAAC;IACtE,CAAC,CAAC,MAAM,GAAG,CAAC,CAAC,MAAM,CAAC;IACpB,OAAO,CAAC,CAAC;AACV,CAAC;AAED,WAAU,IAAI;IAWb,SAAgB,MAAM,CACrB,OAAqB,EACrB,IAAY;QAEZ,IAAI,CAAC,GAA+B,IAAI,CAAC;QACzC,MAAM,CAAC,GAAG,IAAI,OAAO,CAAI,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;YAC5C,SAAS,MAAM;gBACd,OAAO,CAAC,cAAc,CAAC,IAAI,EAAE,OAAO,CAAC,CAAC;gBACtC,OAAO,CAAC,cAAc,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;gBACzC,CAAC,CAAC,MAAM,GAAG,IAAI,CAAC;YACjB,CAAC;YACD,SAAS,OAAO,CAAC,GAAG,IAAW;gBAC9B,MAAM,EAAE,CAAC;gBACT,OAAO,CAAC,IAAS,CAAC,CAAC;YACpB,CAAC;YACD,SAAS,OAAO,CAAC,GAAU;gBAC1B,MAAM,EAAE,CAAC;gBACT,MAAM,CAAC,GAAG,CAAC,CAAC;YACb,CAAC;YACD,CAAC,GAAG,MAAM,CAAC;YACX,OAAO,CAAC,EAAE,CAAC,IAAI,EAAE,OAAO,CAAC,CAAC;YAC1B,OAAO,CAAC,EAAE,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;QAC9B,CAAC,CAA8B,CAAC;QAChC,IAAI,CAAC,CAAC,EAAE;YACP,MAAM,IAAI,SAAS,CAAC,mCAAmC,CAAC,CAAC;SACzD;QACD,CAAC,CAAC,MAAM,GAAG,CAAC,CAAC;QACb,OAAO,CAAC,CAAC;IACV,CAAC;IA5Be,WAAM,SA4BrB,CAAA;AACF,CAAC,EAxCS,IAAI,KAAJ,IAAI,QAwCb;AAED,iBAAS,IAAI,CAAC"}
\ No newline at end of file
diff --git a/node_modules/@tootallnate/once/package.json b/node_modules/@tootallnate/once/package.json
new file mode 100644
index 0000000..8343f9f
--- /dev/null
+++ b/node_modules/@tootallnate/once/package.json
@@ -0,0 +1,45 @@
+{
+  "name": "@tootallnate/once",
+  "version": "1.1.2",
+  "description": "Creates a Promise that waits for a single event",
+  "main": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "prebuild": "rimraf dist",
+    "build": "tsc",
+    "test": "mocha --reporter spec",
+    "test-lint": "eslint src --ext .js,.ts",
+    "prepublishOnly": "npm run build"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/TooTallNate/once.git"
+  },
+  "keywords": [],
+  "author": "Nathan Rajlich <nathan@tootallnate.net> (http://n8.io/)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/TooTallNate/once/issues"
+  },
+  "devDependencies": {
+    "@types/node": "^12.12.11",
+    "@typescript-eslint/eslint-plugin": "1.6.0",
+    "@typescript-eslint/parser": "1.1.0",
+    "eslint": "5.16.0",
+    "eslint-config-airbnb": "17.1.0",
+    "eslint-config-prettier": "4.1.0",
+    "eslint-import-resolver-typescript": "1.1.1",
+    "eslint-plugin-import": "2.16.0",
+    "eslint-plugin-jsx-a11y": "6.2.1",
+    "eslint-plugin-react": "7.12.4",
+    "mocha": "^6.2.2",
+    "rimraf": "^3.0.0",
+    "typescript": "^3.7.3"
+  },
+  "engines": {
+    "node": ">= 6"
+  }
+}
diff --git a/node_modules/abbrev/LICENSE b/node_modules/abbrev/LICENSE
new file mode 100644
index 0000000..9bcfa9d
--- /dev/null
+++ b/node_modules/abbrev/LICENSE
@@ -0,0 +1,46 @@
+This software is dual-licensed under the ISC and MIT licenses.
+You may use this software under EITHER of the following licenses.
+
+----------
+
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+----------
+
+Copyright Isaac Z. Schlueter and Contributors
+All rights reserved.
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/abbrev/README.md b/node_modules/abbrev/README.md
new file mode 100644
index 0000000..99746fe
--- /dev/null
+++ b/node_modules/abbrev/README.md
@@ -0,0 +1,23 @@
+# abbrev-js
+
+Just like [ruby's Abbrev](http://apidock.com/ruby/Abbrev).
+
+Usage:
+
+    var abbrev = require("abbrev");
+    abbrev("foo", "fool", "folding", "flop");
+    
+    // returns:
+    { fl: 'flop'
+    , flo: 'flop'
+    , flop: 'flop'
+    , fol: 'folding'
+    , fold: 'folding'
+    , foldi: 'folding'
+    , foldin: 'folding'
+    , folding: 'folding'
+    , foo: 'foo'
+    , fool: 'fool'
+    }
+
+This is handy for command-line scripts, or other cases where you want to be able to accept shorthands.
diff --git a/node_modules/abbrev/abbrev.js b/node_modules/abbrev/abbrev.js
new file mode 100644
index 0000000..7b1dc5d
--- /dev/null
+++ b/node_modules/abbrev/abbrev.js
@@ -0,0 +1,61 @@
+module.exports = exports = abbrev.abbrev = abbrev
+
+abbrev.monkeyPatch = monkeyPatch
+
+function monkeyPatch () {
+  Object.defineProperty(Array.prototype, 'abbrev', {
+    value: function () { return abbrev(this) },
+    enumerable: false, configurable: true, writable: true
+  })
+
+  Object.defineProperty(Object.prototype, 'abbrev', {
+    value: function () { return abbrev(Object.keys(this)) },
+    enumerable: false, configurable: true, writable: true
+  })
+}
+
+function abbrev (list) {
+  if (arguments.length !== 1 || !Array.isArray(list)) {
+    list = Array.prototype.slice.call(arguments, 0)
+  }
+  for (var i = 0, l = list.length, args = [] ; i < l ; i ++) {
+    args[i] = typeof list[i] === "string" ? list[i] : String(list[i])
+  }
+
+  // sort them lexicographically, so that they're next to their nearest kin
+  args = args.sort(lexSort)
+
+  // walk through each, seeing how much it has in common with the next and previous
+  var abbrevs = {}
+    , prev = ""
+  for (var i = 0, l = args.length ; i < l ; i ++) {
+    var current = args[i]
+      , next = args[i + 1] || ""
+      , nextMatches = true
+      , prevMatches = true
+    if (current === next) continue
+    for (var j = 0, cl = current.length ; j < cl ; j ++) {
+      var curChar = current.charAt(j)
+      nextMatches = nextMatches && curChar === next.charAt(j)
+      prevMatches = prevMatches && curChar === prev.charAt(j)
+      if (!nextMatches && !prevMatches) {
+        j ++
+        break
+      }
+    }
+    prev = current
+    if (j === cl) {
+      abbrevs[current] = current
+      continue
+    }
+    for (var a = current.substr(0, j) ; j <= cl ; j ++) {
+      abbrevs[a] = current
+      a += current.charAt(j)
+    }
+  }
+  return abbrevs
+}
+
+function lexSort (a, b) {
+  return a === b ? 0 : a > b ? 1 : -1
+}
diff --git a/node_modules/abbrev/package.json b/node_modules/abbrev/package.json
new file mode 100644
index 0000000..bf4e801
--- /dev/null
+++ b/node_modules/abbrev/package.json
@@ -0,0 +1,21 @@
+{
+  "name": "abbrev",
+  "version": "1.1.1",
+  "description": "Like ruby's abbrev module, but in js",
+  "author": "Isaac Z. Schlueter <i@izs.me>",
+  "main": "abbrev.js",
+  "scripts": {
+    "test": "tap test.js --100",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --all; git push origin --tags"
+  },
+  "repository": "http://github.com/isaacs/abbrev-js",
+  "license": "ISC",
+  "devDependencies": {
+    "tap": "^10.1"
+  },
+  "files": [
+    "abbrev.js"
+  ]
+}
diff --git a/node_modules/agent-base/README.md b/node_modules/agent-base/README.md
new file mode 100644
index 0000000..256f1f3
--- /dev/null
+++ b/node_modules/agent-base/README.md
@@ -0,0 +1,145 @@
+agent-base
+==========
+### Turn a function into an [`http.Agent`][http.Agent] instance
+[![Build Status](https://github.com/TooTallNate/node-agent-base/workflows/Node%20CI/badge.svg)](https://github.com/TooTallNate/node-agent-base/actions?workflow=Node+CI)
+
+This module provides an `http.Agent` generator. That is, you pass it an async
+callback function, and it returns a new `http.Agent` instance that will invoke the
+given callback function when sending outbound HTTP requests.
+
+#### Some subclasses:
+
+Here's some more interesting uses of `agent-base`.
+Send a pull request to list yours!
+
+ * [`http-proxy-agent`][http-proxy-agent]: An HTTP(s) proxy `http.Agent` implementation for HTTP endpoints
+ * [`https-proxy-agent`][https-proxy-agent]: An HTTP(s) proxy `http.Agent` implementation for HTTPS endpoints
+ * [`pac-proxy-agent`][pac-proxy-agent]: A PAC file proxy `http.Agent` implementation for HTTP and HTTPS
+ * [`socks-proxy-agent`][socks-proxy-agent]: A SOCKS proxy `http.Agent` implementation for HTTP and HTTPS
+
+
+Installation
+------------
+
+Install with `npm`:
+
+``` bash
+$ npm install agent-base
+```
+
+
+Example
+-------
+
+Here's a minimal example that creates a new `net.Socket` connection to the server
+for every HTTP request (i.e. the equivalent of `agent: false` option):
+
+```js
+var net = require('net');
+var tls = require('tls');
+var url = require('url');
+var http = require('http');
+var agent = require('agent-base');
+
+var endpoint = 'http://nodejs.org/api/';
+var parsed = url.parse(endpoint);
+
+// This is the important part!
+parsed.agent = agent(function (req, opts) {
+  var socket;
+  // `secureEndpoint` is true when using the https module
+  if (opts.secureEndpoint) {
+    socket = tls.connect(opts);
+  } else {
+    socket = net.connect(opts);
+  }
+  return socket;
+});
+
+// Everything else works just like normal...
+http.get(parsed, function (res) {
+  console.log('"response" event!', res.headers);
+  res.pipe(process.stdout);
+});
+```
+
+Returning a Promise or using an `async` function is also supported:
+
+```js
+agent(async function (req, opts) {
+  await sleep(1000);
+  // etc…
+});
+```
+
+Return another `http.Agent` instance to "pass through" the responsibility
+for that HTTP request to that agent:
+
+```js
+agent(function (req, opts) {
+  return opts.secureEndpoint ? https.globalAgent : http.globalAgent;
+});
+```
+
+
+API
+---
+
+## Agent(Function callback[, Object options]) → [http.Agent][]
+
+Creates a base `http.Agent` that will execute the callback function `callback`
+for every HTTP request that it is used as the `agent` for. The callback function
+is responsible for creating a `stream.Duplex` instance of some kind that will be
+used as the underlying socket in the HTTP request.
+
+The `options` object accepts the following properties:
+
+  * `timeout` - Number - Timeout for the `callback()` function in milliseconds. Defaults to Infinity (optional).
+
+The callback function should have the following signature:
+
+### callback(http.ClientRequest req, Object options, Function cb) → undefined
+
+The ClientRequest `req` can be accessed to read request headers and
+and the path, etc. The `options` object contains the options passed
+to the `http.request()`/`https.request()` function call, and is formatted
+to be directly passed to `net.connect()`/`tls.connect()`, or however
+else you want a Socket to be created. Pass the created socket to
+the callback function `cb` once created, and the HTTP request will
+continue to proceed.
+
+If the `https` module is used to invoke the HTTP request, then the
+`secureEndpoint` property on `options` _will be set to `true`_.
+
+
+License
+-------
+
+(The MIT License)
+
+Copyright (c) 2013 Nathan Rajlich &lt;nathan@tootallnate.net&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+[http-proxy-agent]: https://github.com/TooTallNate/node-http-proxy-agent
+[https-proxy-agent]: https://github.com/TooTallNate/node-https-proxy-agent
+[pac-proxy-agent]: https://github.com/TooTallNate/node-pac-proxy-agent
+[socks-proxy-agent]: https://github.com/TooTallNate/node-socks-proxy-agent
+[http.Agent]: https://nodejs.org/api/http.html#http_class_http_agent
diff --git a/node_modules/agent-base/dist/src/index.d.ts b/node_modules/agent-base/dist/src/index.d.ts
new file mode 100644
index 0000000..bc4ab74
--- /dev/null
+++ b/node_modules/agent-base/dist/src/index.d.ts
@@ -0,0 +1,78 @@
+/// <reference types="node" />
+import net from 'net';
+import http from 'http';
+import https from 'https';
+import { Duplex } from 'stream';
+import { EventEmitter } from 'events';
+declare function createAgent(opts?: createAgent.AgentOptions): createAgent.Agent;
+declare function createAgent(callback: createAgent.AgentCallback, opts?: createAgent.AgentOptions): createAgent.Agent;
+declare namespace createAgent {
+    interface ClientRequest extends http.ClientRequest {
+        _last?: boolean;
+        _hadError?: boolean;
+        method: string;
+    }
+    interface AgentRequestOptions {
+        host?: string;
+        path?: string;
+        port: number;
+    }
+    interface HttpRequestOptions extends AgentRequestOptions, Omit<http.RequestOptions, keyof AgentRequestOptions> {
+        secureEndpoint: false;
+    }
+    interface HttpsRequestOptions extends AgentRequestOptions, Omit<https.RequestOptions, keyof AgentRequestOptions> {
+        secureEndpoint: true;
+    }
+    type RequestOptions = HttpRequestOptions | HttpsRequestOptions;
+    type AgentLike = Pick<createAgent.Agent, 'addRequest'> | http.Agent;
+    type AgentCallbackReturn = Duplex | AgentLike;
+    type AgentCallbackCallback = (err?: Error | null, socket?: createAgent.AgentCallbackReturn) => void;
+    type AgentCallbackPromise = (req: createAgent.ClientRequest, opts: createAgent.RequestOptions) => createAgent.AgentCallbackReturn | Promise<createAgent.AgentCallbackReturn>;
+    type AgentCallback = typeof Agent.prototype.callback;
+    type AgentOptions = {
+        timeout?: number;
+    };
+    /**
+     * Base `http.Agent` implementation.
+     * No pooling/keep-alive is implemented by default.
+     *
+     * @param {Function} callback
+     * @api public
+     */
+    class Agent extends EventEmitter {
+        timeout: number | null;
+        maxFreeSockets: number;
+        maxTotalSockets: number;
+        maxSockets: number;
+        sockets: {
+            [key: string]: net.Socket[];
+        };
+        freeSockets: {
+            [key: string]: net.Socket[];
+        };
+        requests: {
+            [key: string]: http.IncomingMessage[];
+        };
+        options: https.AgentOptions;
+        private promisifiedCallback?;
+        private explicitDefaultPort?;
+        private explicitProtocol?;
+        constructor(callback?: createAgent.AgentCallback | createAgent.AgentOptions, _opts?: createAgent.AgentOptions);
+        get defaultPort(): number;
+        set defaultPort(v: number);
+        get protocol(): string;
+        set protocol(v: string);
+        callback(req: createAgent.ClientRequest, opts: createAgent.RequestOptions, fn: createAgent.AgentCallbackCallback): void;
+        callback(req: createAgent.ClientRequest, opts: createAgent.RequestOptions): createAgent.AgentCallbackReturn | Promise<createAgent.AgentCallbackReturn>;
+        /**
+         * Called by node-core's "_http_client.js" module when creating
+         * a new HTTP request with this Agent instance.
+         *
+         * @api public
+         */
+        addRequest(req: ClientRequest, _opts: RequestOptions): void;
+        freeSocket(socket: net.Socket, opts: AgentOptions): void;
+        destroy(): void;
+    }
+}
+export = createAgent;
diff --git a/node_modules/agent-base/dist/src/index.js b/node_modules/agent-base/dist/src/index.js
new file mode 100644
index 0000000..bfd9e22
--- /dev/null
+++ b/node_modules/agent-base/dist/src/index.js
@@ -0,0 +1,203 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+const events_1 = require("events");
+const debug_1 = __importDefault(require("debug"));
+const promisify_1 = __importDefault(require("./promisify"));
+const debug = debug_1.default('agent-base');
+function isAgent(v) {
+    return Boolean(v) && typeof v.addRequest === 'function';
+}
+function isSecureEndpoint() {
+    const { stack } = new Error();
+    if (typeof stack !== 'string')
+        return false;
+    return stack.split('\n').some(l => l.indexOf('(https.js:') !== -1 || l.indexOf('node:https:') !== -1);
+}
+function createAgent(callback, opts) {
+    return new createAgent.Agent(callback, opts);
+}
+(function (createAgent) {
+    /**
+     * Base `http.Agent` implementation.
+     * No pooling/keep-alive is implemented by default.
+     *
+     * @param {Function} callback
+     * @api public
+     */
+    class Agent extends events_1.EventEmitter {
+        constructor(callback, _opts) {
+            super();
+            let opts = _opts;
+            if (typeof callback === 'function') {
+                this.callback = callback;
+            }
+            else if (callback) {
+                opts = callback;
+            }
+            // Timeout for the socket to be returned from the callback
+            this.timeout = null;
+            if (opts && typeof opts.timeout === 'number') {
+                this.timeout = opts.timeout;
+            }
+            // These aren't actually used by `agent-base`, but are required
+            // for the TypeScript definition files in `@types/node` :/
+            this.maxFreeSockets = 1;
+            this.maxSockets = 1;
+            this.maxTotalSockets = Infinity;
+            this.sockets = {};
+            this.freeSockets = {};
+            this.requests = {};
+            this.options = {};
+        }
+        get defaultPort() {
+            if (typeof this.explicitDefaultPort === 'number') {
+                return this.explicitDefaultPort;
+            }
+            return isSecureEndpoint() ? 443 : 80;
+        }
+        set defaultPort(v) {
+            this.explicitDefaultPort = v;
+        }
+        get protocol() {
+            if (typeof this.explicitProtocol === 'string') {
+                return this.explicitProtocol;
+            }
+            return isSecureEndpoint() ? 'https:' : 'http:';
+        }
+        set protocol(v) {
+            this.explicitProtocol = v;
+        }
+        callback(req, opts, fn) {
+            throw new Error('"agent-base" has no default implementation, you must subclass and override `callback()`');
+        }
+        /**
+         * Called by node-core's "_http_client.js" module when creating
+         * a new HTTP request with this Agent instance.
+         *
+         * @api public
+         */
+        addRequest(req, _opts) {
+            const opts = Object.assign({}, _opts);
+            if (typeof opts.secureEndpoint !== 'boolean') {
+                opts.secureEndpoint = isSecureEndpoint();
+            }
+            if (opts.host == null) {
+                opts.host = 'localhost';
+            }
+            if (opts.port == null) {
+                opts.port = opts.secureEndpoint ? 443 : 80;
+            }
+            if (opts.protocol == null) {
+                opts.protocol = opts.secureEndpoint ? 'https:' : 'http:';
+            }
+            if (opts.host && opts.path) {
+                // If both a `host` and `path` are specified then it's most
+                // likely the result of a `url.parse()` call... we need to
+                // remove the `path` portion so that `net.connect()` doesn't
+                // attempt to open that as a unix socket file.
+                delete opts.path;
+            }
+            delete opts.agent;
+            delete opts.hostname;
+            delete opts._defaultAgent;
+            delete opts.defaultPort;
+            delete opts.createConnection;
+            // Hint to use "Connection: close"
+            // XXX: non-documented `http` module API :(
+            req._last = true;
+            req.shouldKeepAlive = false;
+            let timedOut = false;
+            let timeoutId = null;
+            const timeoutMs = opts.timeout || this.timeout;
+            const onerror = (err) => {
+                if (req._hadError)
+                    return;
+                req.emit('error', err);
+                // For Safety. Some additional errors might fire later on
+                // and we need to make sure we don't double-fire the error event.
+                req._hadError = true;
+            };
+            const ontimeout = () => {
+                timeoutId = null;
+                timedOut = true;
+                const err = new Error(`A "socket" was not created for HTTP request before ${timeoutMs}ms`);
+                err.code = 'ETIMEOUT';
+                onerror(err);
+            };
+            const callbackError = (err) => {
+                if (timedOut)
+                    return;
+                if (timeoutId !== null) {
+                    clearTimeout(timeoutId);
+                    timeoutId = null;
+                }
+                onerror(err);
+            };
+            const onsocket = (socket) => {
+                if (timedOut)
+                    return;
+                if (timeoutId != null) {
+                    clearTimeout(timeoutId);
+                    timeoutId = null;
+                }
+                if (isAgent(socket)) {
+                    // `socket` is actually an `http.Agent` instance, so
+                    // relinquish responsibility for this `req` to the Agent
+                    // from here on
+                    debug('Callback returned another Agent instance %o', socket.constructor.name);
+                    socket.addRequest(req, opts);
+                    return;
+                }
+                if (socket) {
+                    socket.once('free', () => {
+                        this.freeSocket(socket, opts);
+                    });
+                    req.onSocket(socket);
+                    return;
+                }
+                const err = new Error(`no Duplex stream was returned to agent-base for \`${req.method} ${req.path}\``);
+                onerror(err);
+            };
+            if (typeof this.callback !== 'function') {
+                onerror(new Error('`callback` is not defined'));
+                return;
+            }
+            if (!this.promisifiedCallback) {
+                if (this.callback.length >= 3) {
+                    debug('Converting legacy callback function to promise');
+                    this.promisifiedCallback = promisify_1.default(this.callback);
+                }
+                else {
+                    this.promisifiedCallback = this.callback;
+                }
+            }
+            if (typeof timeoutMs === 'number' && timeoutMs > 0) {
+                timeoutId = setTimeout(ontimeout, timeoutMs);
+            }
+            if ('port' in opts && typeof opts.port !== 'number') {
+                opts.port = Number(opts.port);
+            }
+            try {
+                debug('Resolving socket for %o request: %o', opts.protocol, `${req.method} ${req.path}`);
+                Promise.resolve(this.promisifiedCallback(req, opts)).then(onsocket, callbackError);
+            }
+            catch (err) {
+                Promise.reject(err).catch(callbackError);
+            }
+        }
+        freeSocket(socket, opts) {
+            debug('Freeing socket %o %o', socket.constructor.name, opts);
+            socket.destroy();
+        }
+        destroy() {
+            debug('Destroying agent %o', this.constructor.name);
+        }
+    }
+    createAgent.Agent = Agent;
+    // So that `instanceof` works correctly
+    createAgent.prototype = createAgent.Agent.prototype;
+})(createAgent || (createAgent = {}));
+module.exports = createAgent;
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/node_modules/agent-base/dist/src/index.js.map b/node_modules/agent-base/dist/src/index.js.map
new file mode 100644
index 0000000..bd118ab
--- /dev/null
+++ b/node_modules/agent-base/dist/src/index.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/node_modules/agent-base/dist/src/promisify.d.ts b/node_modules/agent-base/dist/src/promisify.d.ts
new file mode 100644
index 0000000..0268869
--- /dev/null
+++ b/node_modules/agent-base/dist/src/promisify.d.ts
@@ -0,0 +1,4 @@
+import { ClientRequest, RequestOptions, AgentCallbackCallback, AgentCallbackPromise } from './index';
+declare type LegacyCallback = (req: ClientRequest, opts: RequestOptions, fn: AgentCallbackCallback) => void;
+export default function promisify(fn: LegacyCallback): AgentCallbackPromise;
+export {};
diff --git a/node_modules/agent-base/dist/src/promisify.js b/node_modules/agent-base/dist/src/promisify.js
new file mode 100644
index 0000000..b2f6132
--- /dev/null
+++ b/node_modules/agent-base/dist/src/promisify.js
@@ -0,0 +1,18 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+function promisify(fn) {
+    return function (req, opts) {
+        return new Promise((resolve, reject) => {
+            fn.call(this, req, opts, (err, rtn) => {
+                if (err) {
+                    reject(err);
+                }
+                else {
+                    resolve(rtn);
+                }
+            });
+        });
+    };
+}
+exports.default = promisify;
+//# sourceMappingURL=promisify.js.map
\ No newline at end of file
diff --git a/node_modules/agent-base/dist/src/promisify.js.map b/node_modules/agent-base/dist/src/promisify.js.map
new file mode 100644
index 0000000..4bff9bf
--- /dev/null
+++ b/node_modules/agent-base/dist/src/promisify.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"promisify.js","sourceRoot":"","sources":["../../src/promisify.ts"],"names":[],"mappings":";;AAeA,SAAwB,SAAS,CAAC,EAAkB;IACnD,OAAO,UAAsB,GAAkB,EAAE,IAAoB;QACpE,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;YACtC,EAAE,CAAC,IAAI,CACN,IAAI,EACJ,GAAG,EACH,IAAI,EACJ,CAAC,GAA6B,EAAE,GAAyB,EAAE,EAAE;gBAC5D,IAAI,GAAG,EAAE;oBACR,MAAM,CAAC,GAAG,CAAC,CAAC;iBACZ;qBAAM;oBACN,OAAO,CAAC,GAAG,CAAC,CAAC;iBACb;YACF,CAAC,CACD,CAAC;QACH,CAAC,CAAC,CAAC;IACJ,CAAC,CAAC;AACH,CAAC;AAjBD,4BAiBC"}
\ No newline at end of file
diff --git a/node_modules/agent-base/package.json b/node_modules/agent-base/package.json
new file mode 100644
index 0000000..fadce3a
--- /dev/null
+++ b/node_modules/agent-base/package.json
@@ -0,0 +1,64 @@
+{
+  "name": "agent-base",
+  "version": "6.0.2",
+  "description": "Turn a function into an `http.Agent` instance",
+  "main": "dist/src/index",
+  "typings": "dist/src/index",
+  "files": [
+    "dist/src",
+    "src"
+  ],
+  "scripts": {
+    "prebuild": "rimraf dist",
+    "build": "tsc",
+    "postbuild": "cpy --parents src test '!**/*.ts' dist",
+    "test": "mocha --reporter spec dist/test/*.js",
+    "test-lint": "eslint src --ext .js,.ts",
+    "prepublishOnly": "npm run build"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/TooTallNate/node-agent-base.git"
+  },
+  "keywords": [
+    "http",
+    "agent",
+    "base",
+    "barebones",
+    "https"
+  ],
+  "author": "Nathan Rajlich <nathan@tootallnate.net> (http://n8.io/)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/TooTallNate/node-agent-base/issues"
+  },
+  "dependencies": {
+    "debug": "4"
+  },
+  "devDependencies": {
+    "@types/debug": "4",
+    "@types/mocha": "^5.2.7",
+    "@types/node": "^14.0.20",
+    "@types/semver": "^7.1.0",
+    "@types/ws": "^6.0.3",
+    "@typescript-eslint/eslint-plugin": "1.6.0",
+    "@typescript-eslint/parser": "1.1.0",
+    "async-listen": "^1.2.0",
+    "cpy-cli": "^2.0.0",
+    "eslint": "5.16.0",
+    "eslint-config-airbnb": "17.1.0",
+    "eslint-config-prettier": "4.1.0",
+    "eslint-import-resolver-typescript": "1.1.1",
+    "eslint-plugin-import": "2.16.0",
+    "eslint-plugin-jsx-a11y": "6.2.1",
+    "eslint-plugin-react": "7.12.4",
+    "mocha": "^6.2.0",
+    "rimraf": "^3.0.0",
+    "semver": "^7.1.2",
+    "typescript": "^3.5.3",
+    "ws": "^3.0.0"
+  },
+  "engines": {
+    "node": ">= 6.0.0"
+  }
+}
diff --git a/node_modules/agent-base/src/index.ts b/node_modules/agent-base/src/index.ts
new file mode 100644
index 0000000..a47ccd4
--- /dev/null
+++ b/node_modules/agent-base/src/index.ts
@@ -0,0 +1,345 @@
+import net from 'net';
+import http from 'http';
+import https from 'https';
+import { Duplex } from 'stream';
+import { EventEmitter } from 'events';
+import createDebug from 'debug';
+import promisify from './promisify';
+
+const debug = createDebug('agent-base');
+
+function isAgent(v: any): v is createAgent.AgentLike {
+	return Boolean(v) && typeof v.addRequest === 'function';
+}
+
+function isSecureEndpoint(): boolean {
+	const { stack } = new Error();
+	if (typeof stack !== 'string') return false;
+	return stack.split('\n').some(l => l.indexOf('(https.js:') !== -1  || l.indexOf('node:https:') !== -1);
+}
+
+function createAgent(opts?: createAgent.AgentOptions): createAgent.Agent;
+function createAgent(
+	callback: createAgent.AgentCallback,
+	opts?: createAgent.AgentOptions
+): createAgent.Agent;
+function createAgent(
+	callback?: createAgent.AgentCallback | createAgent.AgentOptions,
+	opts?: createAgent.AgentOptions
+) {
+	return new createAgent.Agent(callback, opts);
+}
+
+namespace createAgent {
+	export interface ClientRequest extends http.ClientRequest {
+		_last?: boolean;
+		_hadError?: boolean;
+		method: string;
+	}
+
+	export interface AgentRequestOptions {
+		host?: string;
+		path?: string;
+		// `port` on `http.RequestOptions` can be a string or undefined,
+		// but `net.TcpNetConnectOpts` expects only a number
+		port: number;
+	}
+
+	export interface HttpRequestOptions
+		extends AgentRequestOptions,
+			Omit<http.RequestOptions, keyof AgentRequestOptions> {
+		secureEndpoint: false;
+	}
+
+	export interface HttpsRequestOptions
+		extends AgentRequestOptions,
+			Omit<https.RequestOptions, keyof AgentRequestOptions> {
+		secureEndpoint: true;
+	}
+
+	export type RequestOptions = HttpRequestOptions | HttpsRequestOptions;
+
+	export type AgentLike = Pick<createAgent.Agent, 'addRequest'> | http.Agent;
+
+	export type AgentCallbackReturn = Duplex | AgentLike;
+
+	export type AgentCallbackCallback = (
+		err?: Error | null,
+		socket?: createAgent.AgentCallbackReturn
+	) => void;
+
+	export type AgentCallbackPromise = (
+		req: createAgent.ClientRequest,
+		opts: createAgent.RequestOptions
+	) =>
+		| createAgent.AgentCallbackReturn
+		| Promise<createAgent.AgentCallbackReturn>;
+
+	export type AgentCallback = typeof Agent.prototype.callback;
+
+	export type AgentOptions = {
+		timeout?: number;
+	};
+
+	/**
+	 * Base `http.Agent` implementation.
+	 * No pooling/keep-alive is implemented by default.
+	 *
+	 * @param {Function} callback
+	 * @api public
+	 */
+	export class Agent extends EventEmitter {
+		public timeout: number | null;
+		public maxFreeSockets: number;
+		public maxTotalSockets: number;
+		public maxSockets: number;
+		public sockets: {
+			[key: string]: net.Socket[];
+		};
+		public freeSockets: {
+			[key: string]: net.Socket[];
+		};
+		public requests: {
+			[key: string]: http.IncomingMessage[];
+		};
+		public options: https.AgentOptions;
+		private promisifiedCallback?: createAgent.AgentCallbackPromise;
+		private explicitDefaultPort?: number;
+		private explicitProtocol?: string;
+
+		constructor(
+			callback?: createAgent.AgentCallback | createAgent.AgentOptions,
+			_opts?: createAgent.AgentOptions
+		) {
+			super();
+
+			let opts = _opts;
+			if (typeof callback === 'function') {
+				this.callback = callback;
+			} else if (callback) {
+				opts = callback;
+			}
+
+			// Timeout for the socket to be returned from the callback
+			this.timeout = null;
+			if (opts && typeof opts.timeout === 'number') {
+				this.timeout = opts.timeout;
+			}
+
+			// These aren't actually used by `agent-base`, but are required
+			// for the TypeScript definition files in `@types/node` :/
+			this.maxFreeSockets = 1;
+			this.maxSockets = 1;
+			this.maxTotalSockets = Infinity;
+			this.sockets = {};
+			this.freeSockets = {};
+			this.requests = {};
+			this.options = {};
+		}
+
+		get defaultPort(): number {
+			if (typeof this.explicitDefaultPort === 'number') {
+				return this.explicitDefaultPort;
+			}
+			return isSecureEndpoint() ? 443 : 80;
+		}
+
+		set defaultPort(v: number) {
+			this.explicitDefaultPort = v;
+		}
+
+		get protocol(): string {
+			if (typeof this.explicitProtocol === 'string') {
+				return this.explicitProtocol;
+			}
+			return isSecureEndpoint() ? 'https:' : 'http:';
+		}
+
+		set protocol(v: string) {
+			this.explicitProtocol = v;
+		}
+
+		callback(
+			req: createAgent.ClientRequest,
+			opts: createAgent.RequestOptions,
+			fn: createAgent.AgentCallbackCallback
+		): void;
+		callback(
+			req: createAgent.ClientRequest,
+			opts: createAgent.RequestOptions
+		):
+			| createAgent.AgentCallbackReturn
+			| Promise<createAgent.AgentCallbackReturn>;
+		callback(
+			req: createAgent.ClientRequest,
+			opts: createAgent.AgentOptions,
+			fn?: createAgent.AgentCallbackCallback
+		):
+			| createAgent.AgentCallbackReturn
+			| Promise<createAgent.AgentCallbackReturn>
+			| void {
+			throw new Error(
+				'"agent-base" has no default implementation, you must subclass and override `callback()`'
+			);
+		}
+
+		/**
+		 * Called by node-core's "_http_client.js" module when creating
+		 * a new HTTP request with this Agent instance.
+		 *
+		 * @api public
+		 */
+		addRequest(req: ClientRequest, _opts: RequestOptions): void {
+			const opts: RequestOptions = { ..._opts };
+
+			if (typeof opts.secureEndpoint !== 'boolean') {
+				opts.secureEndpoint = isSecureEndpoint();
+			}
+
+			if (opts.host == null) {
+				opts.host = 'localhost';
+			}
+
+			if (opts.port == null) {
+				opts.port = opts.secureEndpoint ? 443 : 80;
+			}
+
+			if (opts.protocol == null) {
+				opts.protocol = opts.secureEndpoint ? 'https:' : 'http:';
+			}
+
+			if (opts.host && opts.path) {
+				// If both a `host` and `path` are specified then it's most
+				// likely the result of a `url.parse()` call... we need to
+				// remove the `path` portion so that `net.connect()` doesn't
+				// attempt to open that as a unix socket file.
+				delete opts.path;
+			}
+
+			delete opts.agent;
+			delete opts.hostname;
+			delete opts._defaultAgent;
+			delete opts.defaultPort;
+			delete opts.createConnection;
+
+			// Hint to use "Connection: close"
+			// XXX: non-documented `http` module API :(
+			req._last = true;
+			req.shouldKeepAlive = false;
+
+			let timedOut = false;
+			let timeoutId: ReturnType<typeof setTimeout> | null = null;
+			const timeoutMs = opts.timeout || this.timeout;
+
+			const onerror = (err: NodeJS.ErrnoException) => {
+				if (req._hadError) return;
+				req.emit('error', err);
+				// For Safety. Some additional errors might fire later on
+				// and we need to make sure we don't double-fire the error event.
+				req._hadError = true;
+			};
+
+			const ontimeout = () => {
+				timeoutId = null;
+				timedOut = true;
+				const err: NodeJS.ErrnoException = new Error(
+					`A "socket" was not created for HTTP request before ${timeoutMs}ms`
+				);
+				err.code = 'ETIMEOUT';
+				onerror(err);
+			};
+
+			const callbackError = (err: NodeJS.ErrnoException) => {
+				if (timedOut) return;
+				if (timeoutId !== null) {
+					clearTimeout(timeoutId);
+					timeoutId = null;
+				}
+				onerror(err);
+			};
+
+			const onsocket = (socket: AgentCallbackReturn) => {
+				if (timedOut) return;
+				if (timeoutId != null) {
+					clearTimeout(timeoutId);
+					timeoutId = null;
+				}
+
+				if (isAgent(socket)) {
+					// `socket` is actually an `http.Agent` instance, so
+					// relinquish responsibility for this `req` to the Agent
+					// from here on
+					debug(
+						'Callback returned another Agent instance %o',
+						socket.constructor.name
+					);
+					(socket as createAgent.Agent).addRequest(req, opts);
+					return;
+				}
+
+				if (socket) {
+					socket.once('free', () => {
+						this.freeSocket(socket as net.Socket, opts);
+					});
+					req.onSocket(socket as net.Socket);
+					return;
+				}
+
+				const err = new Error(
+					`no Duplex stream was returned to agent-base for \`${req.method} ${req.path}\``
+				);
+				onerror(err);
+			};
+
+			if (typeof this.callback !== 'function') {
+				onerror(new Error('`callback` is not defined'));
+				return;
+			}
+
+			if (!this.promisifiedCallback) {
+				if (this.callback.length >= 3) {
+					debug('Converting legacy callback function to promise');
+					this.promisifiedCallback = promisify(this.callback);
+				} else {
+					this.promisifiedCallback = this.callback;
+				}
+			}
+
+			if (typeof timeoutMs === 'number' && timeoutMs > 0) {
+				timeoutId = setTimeout(ontimeout, timeoutMs);
+			}
+
+			if ('port' in opts && typeof opts.port !== 'number') {
+				opts.port = Number(opts.port);
+			}
+
+			try {
+				debug(
+					'Resolving socket for %o request: %o',
+					opts.protocol,
+					`${req.method} ${req.path}`
+				);
+				Promise.resolve(this.promisifiedCallback(req, opts)).then(
+					onsocket,
+					callbackError
+				);
+			} catch (err) {
+				Promise.reject(err).catch(callbackError);
+			}
+		}
+
+		freeSocket(socket: net.Socket, opts: AgentOptions) {
+			debug('Freeing socket %o %o', socket.constructor.name, opts);
+			socket.destroy();
+		}
+
+		destroy() {
+			debug('Destroying agent %o', this.constructor.name);
+		}
+	}
+
+	// So that `instanceof` works correctly
+	createAgent.prototype = createAgent.Agent.prototype;
+}
+
+export = createAgent;
diff --git a/node_modules/agent-base/src/promisify.ts b/node_modules/agent-base/src/promisify.ts
new file mode 100644
index 0000000..60cc662
--- /dev/null
+++ b/node_modules/agent-base/src/promisify.ts
@@ -0,0 +1,33 @@
+import {
+	Agent,
+	ClientRequest,
+	RequestOptions,
+	AgentCallbackCallback,
+	AgentCallbackPromise,
+	AgentCallbackReturn
+} from './index';
+
+type LegacyCallback = (
+	req: ClientRequest,
+	opts: RequestOptions,
+	fn: AgentCallbackCallback
+) => void;
+
+export default function promisify(fn: LegacyCallback): AgentCallbackPromise {
+	return function(this: Agent, req: ClientRequest, opts: RequestOptions) {
+		return new Promise((resolve, reject) => {
+			fn.call(
+				this,
+				req,
+				opts,
+				(err: Error | null | undefined, rtn?: AgentCallbackReturn) => {
+					if (err) {
+						reject(err);
+					} else {
+						resolve(rtn);
+					}
+				}
+			);
+		});
+	};
+}
diff --git a/node_modules/agentkeepalive/History.md b/node_modules/agentkeepalive/History.md
new file mode 100644
index 0000000..6877834
--- /dev/null
+++ b/node_modules/agentkeepalive/History.md
@@ -0,0 +1,268 @@
+
+4.5.0 / 2023-08-06
+==================
+
+**others**
+  * [[`1e5e312`](http://github.com/node-modules/agentkeepalive/commit/1e5e312f36491243372dbfee0dd47607e7b3d94a)] - deps: remove debug and depd (#114) (fengmk2 <<fengmk2@gmail.com>>)
+
+4.4.0 / 2023-08-05
+==================
+
+**features**
+  * [[`c7c1e93`](http://github.com/node-modules/agentkeepalive/commit/c7c1e93beba7310d7c2cc9647dd211a686d21cac)] - feat: return socket from createConnection (#113) (Nabeel Bukhari <<nabeel.bukhari@hotmail.com>>)
+
+4.3.0 / 2023-03-06
+==================
+
+**others**
+  * [[`6f9852b`](http://github.com/node-modules/agentkeepalive/commit/6f9852bf6f674846103e403fd9c84e92fc24f820)] - deps: depd@2.0.0 (#109) (Brian DeHamer <<bdehamer@github.com>>)
+  * [[`fd4bd9b`](http://github.com/node-modules/agentkeepalive/commit/fd4bd9b0e0f051de3cb49559d1b0d534a0ded18c)] - test: use npm install (#110) (fengmk2 <<fengmk2@gmail.com>>)
+  * [[`d52822c`](http://github.com/node-modules/agentkeepalive/commit/d52822c1243c689df1c8232a3bb14139cf87fae5)] - chore: update contributors (fengmk2 <<fengmk2@gmail.com>>)
+
+4.2.1 / 2022-02-21
+==================
+
+**fixes**
+  * [[`8b13b5c`](http://github.com/node-modules/agentkeepalive/commit/8b13b5ca797f4779a0a8d393ad8ecb622cd27987)] - fix: explicitly set `| undefined` in type definitions (#99) (Benoit Lemoine <<lemoine.benoit@gmail.com>>)
+
+4.2.0 / 2021-12-31
+==================
+
+**fixes**
+  * [[`f418c67`](http://github.com/node-modules/agentkeepalive/commit/f418c67a63c061c7261592d4553bc455e0b0d306)] - fix: change `freeSocketTimeout` default value to 4000 (#102) (fengmk2 <<fengmk2@gmail.com>>)
+
+**others**
+  * [[`bc2a1ce`](http://github.com/node-modules/agentkeepalive/commit/bc2a1cea0884b4d18b0d244bf00006d9107963df)] - doc(readme): making `timeout`'s default clear (#100) (Aaron <<aaronarinder@gmail.com>>)
+
+4.1.4 / 2021-02-05
+==================
+
+**fixes**
+  * [[`4d04794`](http://github.com/node-modules/agentkeepalive/commit/4d047946b1547b4edff92ea40205aee4f0c8aa46)] - fix(types): correct `Https` constructor argument (#89) (Simen Bekkhus <<sbekkhus91@gmail.com>>)
+
+4.1.3 / 2020-06-15
+==================
+
+**fixes**
+  * [[`4ba9f9c`](http://github.com/node-modules/agentkeepalive/commit/4ba9f9c844f2a6b8037ce56599d25c69ef054d91)] - fix: compatible with node v12.16.3 (#91) (killa <<killa123@126.com>>)
+
+4.1.2 / 2020-04-25
+==================
+
+**fixes**
+  * [[`de66b02`](http://github.com/node-modules/agentkeepalive/commit/de66b0206d064a97129c2c31bcdabd4d64557b91)] - fix: detect http request timeout handler (#88) (fengmk2 <<fengmk2@gmail.com>>)
+
+4.1.1 / 2020-04-25
+==================
+
+**fixes**
+  * [[`bbd20c0`](http://github.com/node-modules/agentkeepalive/commit/bbd20c03b8cf7dfb00b3aad1ada26d4ab90d2d6e)] - fix: definition error (#87) (吖猩 <<whxaxes@qq.com>>)
+
+**others**
+  * [[`3b01699`](http://github.com/node-modules/agentkeepalive/commit/3b01699b8e90022d5f56898dd709e4fe7ee7cdaa)] - test: run test on node 12 (#84) (Igor Savin <<iselwin@gmail.com>>)
+
+4.1.0 / 2019-10-12
+==================
+
+**features**
+  * [[`fe33b80`](http://github.com/node-modules/agentkeepalive/commit/fe33b800acc09109388bfe65107550952b6fc7b0)] - feat: Add `reusedSocket` property on client request (#82) (Weijia Wang <<starkwang@126.com>>)
+
+**others**
+  * [[`77ba744`](http://github.com/node-modules/agentkeepalive/commit/77ba744667bb6b9e5986a53e5222f62094db12b9)] - docs: fix grammar in readme (#81) (Herrington Darkholme <<2883231+HerringtonDarkholme@users.noreply.github.com>>)
+
+4.0.2 / 2019-02-19
+==================
+
+**fixes**
+  * [[`56d4a9b`](http://github.com/node-modules/agentkeepalive/commit/56d4a9b2a4499ea28943ddb590358d7831a02cb1)] - fix: HttpAgent export = internal (#74) (Andrew Leedham <<AndrewLeedham@outlook.com>>)
+
+4.0.1 / 2019-02-19
+==================
+
+**fixes**
+  * [[`bad1ac0`](http://github.com/node-modules/agentkeepalive/commit/bad1ac0e710fbc486717e14e68c59266d35df6a8)] - fix: HttpsAgent Type Definition (#71) (#72) (Andrew Leedham <<AndrewLeedham@outlook.com>>)
+  * [[`f48a4a7`](http://github.com/node-modules/agentkeepalive/commit/f48a4a701ea6fbe43781c91e1c0aaad6e328ac7f)] - fix: export interface (#70) (Vinay <<vinaybedre@gmail.com>>)
+
+**others**
+  * [[`9124343`](http://github.com/node-modules/agentkeepalive/commit/91243437cfdd324cb97f39dee76746d5e5f4cd72)] - chore: add agent.options.keepAlive instead agent.keepAlive (fengmk2 <<fengmk2@gmail.com>>)
+  * [[`d177d40`](http://github.com/node-modules/agentkeepalive/commit/d177d40422fe7296990b4e270cf498e3f33c18fa)] - test: add request timeout bigger than agent timeout cases (fengmk2 <<fengmk2@gmail.com>>)
+
+4.0.0 / 2018-10-23
+==================
+
+**features**
+  * [[`5c9f3bb`](http://github.com/node-modules/agentkeepalive/commit/5c9f3bbd60555744edcf777105b148982a1a42b6)] - feat: impl the new Agent extend http.Agent (fengmk2 <<fengmk2@gmail.com>>)
+
+**others**
+  * [[`498c8f1`](http://github.com/node-modules/agentkeepalive/commit/498c8f13cf76600d3dd6e1c91cdf2d8292355dff)] - chore: move LICENSE from readme to file (fengmk2 <<fengmk2@gmail.com>>)
+  * [[`4f39894`](http://github.com/node-modules/agentkeepalive/commit/4f398942ba2f90cf4501239e56ac4e6344931a01)] - bugfix: support agent.options.timeout on https agent (fengmk2 <<fengmk2@gmail.com>>)
+
+3.5.2 / 2018-10-19
+==================
+
+**fixes**
+  * [[`5751fc1`](http://github.com/node-modules/agentkeepalive/commit/5751fc1180ed6544602c681ffbd08ca66a0cb12c)] - fix: sockLen being miscalculated when removing sockets (#60) (Ehden Sinai <<cixel@users.noreply.github.com>>)
+
+3.5.1 / 2018-07-31
+==================
+
+**fixes**
+  * [[`495f1ab`](http://github.com/node-modules/agentkeepalive/commit/495f1ab625d43945d72f68096b97db723d4f0657)] - fix: add the lost npm files (#66) (Henry Zhuang <<zhuanghengfei@gmail.com>>)
+
+3.5.0 / 2018-07-31
+==================
+
+**features**
+  * [[`16f5aea`](http://github.com/node-modules/agentkeepalive/commit/16f5aeadfda57f1c602652f1472a63cc83cd05bf)] - feat: add typing define. (#65) (Henry Zhuang <<zhuanghengfei@gmail.com>>)
+
+**others**
+  * [[`28fa062`](http://github.com/node-modules/agentkeepalive/commit/28fa06246fb5103f88ebeeb8563757a9078b8157)] - docs: add "per host" to description of maxFreeSockets (tony-gutierrez <<tony.gutierrez@bluefletch.com>>)
+  * [[`7df2577`](http://github.com/node-modules/agentkeepalive/commit/7df25774f00a1031ca4daad2878a17e0539072a2)] - test: run test on node 10 (#63) (fengmk2 <<fengmk2@gmail.com>>)
+
+3.4.1 / 2018-03-08
+==================
+
+**fixes**
+  * [[`4d3a3b1`](http://github.com/node-modules/agentkeepalive/commit/4d3a3b1f7b16595febbbd39eeed72b2663549014)] - fix: Handle ipv6 addresses in host-header correctly with TLS (#53) (Mattias Holmlund <<u376@m1.holmlund.se>>)
+
+**others**
+  * [[`55a7a5c`](http://github.com/node-modules/agentkeepalive/commit/55a7a5cd33e97f9a8370083dcb041c5552f10ac9)] - test: stop timer after test end (fengmk2 <<fengmk2@gmail.com>>)
+
+3.4.0 / 2018-02-27
+==================
+
+**features**
+  * [[`bc7cadb`](http://github.com/node-modules/agentkeepalive/commit/bc7cadb30ecd2071e2b341ac53ae1a2b8155c43d)] - feat: use socket custom freeSocketKeepAliveTimeout first (#59) (fengmk2 <<fengmk2@gmail.com>>)
+
+**others**
+  * [[`138eda8`](http://github.com/node-modules/agentkeepalive/commit/138eda81e10b632aaa87bea0cb66d8667124c4e8)] - doc: fix `keepAliveMsecs` params description (#55) (Hongcai Deng <<admin@dhchouse.com>>)
+
+3.3.0 / 2017-06-20
+==================
+
+  * feat: add statusChanged getter (#51)
+  * chore: format License
+
+3.2.0 / 2017-06-10
+==================
+
+  * feat: add expiring active sockets
+  * test: add node 8 (#49)
+
+3.1.0 / 2017-02-20
+==================
+
+  * feat: timeout support humanize ms (#48)
+
+3.0.0 / 2016-12-20
+==================
+
+  * fix: emit agent socket close event
+  * test: add remove excess calls to removeSocket
+  * test: use egg-ci
+  * test: refactor test with eslint rules
+  * feat: merge _http_agent.js from 7.2.1
+
+2.2.0 / 2016-06-26
+==================
+
+  * feat: Add browser shim (noop) for isomorphic use. (#39)
+  * chore: add security check badge
+
+2.1.1 / 2016-04-06
+==================
+
+  * https: fix ssl socket leak when keepalive is used
+  * chore: remove circle ci image
+
+2.1.0 / 2016-04-02
+==================
+
+  * fix: opened sockets number overflow maxSockets
+
+2.0.5 / 2016-03-16
+==================
+
+  * fix: pick _evictSession to httpsAgent
+
+2.0.4 / 2016-03-13
+==================
+
+  * test: add Circle ci
+  * test: add appveyor ci build
+  * refactor: make sure only one error listener
+  * chore: use codecov
+  * fix: handle idle socket error
+  * test: run on more node versions
+
+2.0.3 / 2015-08-03
+==================
+
+ * fix: add default error handler to avoid Unhandled error event throw
+
+2.0.2 / 2015-04-25
+==================
+
+ * fix: remove socket from freeSockets on 'timeout' (@pmalouin)
+
+2.0.1 / 2015-04-19
+==================
+
+ * fix: add timeoutSocketCount to getCurrentStatus()
+ * feat(getCurrentStatus): add getCurrentStatus
+
+2.0.0 / 2015-04-01
+==================
+
+ * fix: socket.destroyed always be undefined on 0.10.x
+ * Make it compatible with node v0.10.x (@lattmann)
+
+1.2.1 / 2015-03-23
+==================
+
+ * patch from iojs: don't overwrite servername option
+ * patch commits from joyent/node
+ * add max sockets test case
+ * add nagle algorithm delayed link
+
+1.2.0 / 2014-09-02
+==================
+
+ * allow set keepAliveTimeout = 0
+ * support timeout on working socket. fixed #6
+
+1.1.0 / 2014-08-28
+==================
+
+ * add some socket counter for deep monitor
+
+1.0.0 / 2014-08-13
+==================
+
+ * update _http_agent, only support 0.11+, only support node 0.11.0+
+
+0.2.2 / 2013-11-19 
+==================
+
+  * support node 0.8 and node 0.10
+
+0.2.1 / 2013-11-08 
+==================
+
+  * fix socket does not timeout bug, it will hang on life, must use 0.2.x on node 0.11
+
+0.2.0 / 2013-11-06 
+==================
+
+  * use keepalive agent on node 0.11+ impl
+
+0.1.5 / 2013-06-24 
+==================
+
+  * support coveralls
+  * add node 0.10 test
+  * add 0.8.22 original https.js
+  * add original http.js module to diff
+  * update jscover
+  * mv pem to fixtures
+  * add https agent usage
diff --git a/node_modules/agentkeepalive/LICENSE b/node_modules/agentkeepalive/LICENSE
new file mode 100644
index 0000000..941258c
--- /dev/null
+++ b/node_modules/agentkeepalive/LICENSE
@@ -0,0 +1,23 @@
+The MIT License
+
+Copyright(c) node-modules and other contributors.
+Copyright(c) 2012 - 2015 fengmk2 <fengmk2@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/agentkeepalive/README.md b/node_modules/agentkeepalive/README.md
new file mode 100644
index 0000000..91bd68c
--- /dev/null
+++ b/node_modules/agentkeepalive/README.md
@@ -0,0 +1,256 @@
+# agentkeepalive
+
+[![NPM version][npm-image]][npm-url]
+[![Known Vulnerabilities][snyk-image]][snyk-url]
+[![Node.js CI](https://github.com/node-modules/agentkeepalive/actions/workflows/nodejs.yml/badge.svg)](https://github.com/node-modules/agentkeepalive/actions/workflows/nodejs.yml)
+[![npm download][download-image]][download-url]
+
+[npm-image]: https://img.shields.io/npm/v/agentkeepalive.svg?style=flat
+[npm-url]: https://npmjs.org/package/agentkeepalive
+[snyk-image]: https://snyk.io/test/npm/agentkeepalive/badge.svg?style=flat-square
+[snyk-url]: https://snyk.io/test/npm/agentkeepalive
+[download-image]: https://img.shields.io/npm/dm/agentkeepalive.svg?style=flat-square
+[download-url]: https://npmjs.org/package/agentkeepalive
+
+The enhancement features `keep alive` `http.Agent`. Support `http` and `https`.
+
+## What's different from original `http.Agent`?
+
+- `keepAlive=true` by default
+- Disable Nagle's algorithm: `socket.setNoDelay(true)`
+- Add free socket timeout: avoid long time inactivity socket leak in the free-sockets queue.
+- Add active socket timeout: avoid long time inactivity socket leak in the active-sockets queue.
+- TTL for active socket.
+
+## Node.js version required
+
+Support Node.js >= `8.0.0`
+
+## Install
+
+```bash
+$ npm install agentkeepalive --save
+```
+
+## new Agent([options])
+
+* `options` {Object} Set of configurable options to set on the agent.
+  Can have the following fields:
+  * `keepAlive` {Boolean} Keep sockets around in a pool to be used by
+    other requests in the future. Default = `true`.
+  * `keepAliveMsecs` {Number} When using the keepAlive option, specifies the initial delay
+    for TCP Keep-Alive packets. Ignored when the keepAlive option is false or undefined. Defaults to 1000.
+    Default = `1000`.  Only relevant if `keepAlive` is set to `true`.
+  * `freeSocketTimeout`: {Number} Sets the free socket to timeout
+    after `freeSocketTimeout` milliseconds of inactivity on the free socket.
+    The default [server-side timeout](https://nodejs.org/api/http.html#serverkeepalivetimeout) is 5000 milliseconds, to [avoid ECONNRESET exceptions](https://medium.com/ssense-tech/reduce-networking-errors-in-nodejs-23b4eb9f2d83), we set the default value to `4000` milliseconds.
+    Only relevant if `keepAlive` is set to `true`.
+  * `timeout`: {Number} Sets the working socket to timeout
+    after `timeout` milliseconds of inactivity on the working socket.
+    Default is `freeSocketTimeout * 2` so long as that value is greater than or equal to 8 seconds, otherwise the default is 8 seconds.
+  * `maxSockets` {Number} Maximum number of sockets to allow per
+    host. Default = `Infinity`.
+  * `maxFreeSockets` {Number} Maximum number of sockets (per host) to leave open
+    in a free state. Only relevant if `keepAlive` is set to `true`.
+    Default = `256`.
+  * `socketActiveTTL` {Number} Sets the socket active time to live, even if it's in use.
+    If not set, the behaviour keeps the same (the socket will be released only when free)
+    Default = `null`.
+
+## Usage
+
+```js
+const http = require('http');
+const Agent = require('agentkeepalive');
+
+const keepaliveAgent = new Agent({
+  maxSockets: 100,
+  maxFreeSockets: 10,
+  timeout: 60000, // active socket keepalive for 60 seconds
+  freeSocketTimeout: 30000, // free socket keepalive for 30 seconds
+});
+
+const options = {
+  host: 'cnodejs.org',
+  port: 80,
+  path: '/',
+  method: 'GET',
+  agent: keepaliveAgent,
+};
+
+const req = http.request(options, res => {
+  console.log('STATUS: ' + res.statusCode);
+  console.log('HEADERS: ' + JSON.stringify(res.headers));
+  res.setEncoding('utf8');
+  res.on('data', function (chunk) {
+    console.log('BODY: ' + chunk);
+  });
+});
+req.on('error', e => {
+  console.log('problem with request: ' + e.message);
+});
+req.end();
+
+setTimeout(() => {
+  if (keepaliveAgent.statusChanged) {
+    console.log('[%s] agent status changed: %j', Date(), keepaliveAgent.getCurrentStatus());
+  }
+}, 2000);
+
+```
+
+### `getter agent.statusChanged`
+
+counters have change or not after last checkpoint.
+
+### `agent.getCurrentStatus()`
+
+`agent.getCurrentStatus()` will return a object to show the status of this agent:
+
+```js
+{
+  createSocketCount: 10,
+  closeSocketCount: 5,
+  timeoutSocketCount: 0,
+  requestCount: 5,
+  freeSockets: { 'localhost:57479:': 3 },
+  sockets: { 'localhost:57479:': 5 },
+  requests: {}
+}
+```
+
+### Support `https`
+
+```js
+const https = require('https');
+const HttpsAgent = require('agentkeepalive').HttpsAgent;
+
+const keepaliveAgent = new HttpsAgent();
+// https://www.google.com/search?q=nodejs&sugexp=chrome,mod=12&sourceid=chrome&ie=UTF-8
+const options = {
+  host: 'www.google.com',
+  port: 443,
+  path: '/search?q=nodejs&sugexp=chrome,mod=12&sourceid=chrome&ie=UTF-8',
+  method: 'GET',
+  agent: keepaliveAgent,
+};
+
+const req = https.request(options, res => {
+  console.log('STATUS: ' + res.statusCode);
+  console.log('HEADERS: ' + JSON.stringify(res.headers));
+  res.setEncoding('utf8');
+  res.on('data', chunk => {
+    console.log('BODY: ' + chunk);
+  });
+});
+
+req.on('error', e => {
+  console.log('problem with request: ' + e.message);
+});
+req.end();
+
+setTimeout(() => {
+  console.log('agent status: %j', keepaliveAgent.getCurrentStatus());
+}, 2000);
+```
+
+### Support `req.reusedSocket`
+
+This agent implements the `req.reusedSocket` to determine whether a request is send through a reused socket.
+
+When server closes connection at unfortunate time ([keep-alive race](https://code-examples.net/en/q/28a8069)), the http client will throw a `ECONNRESET` error. Under this circumstance, `req.reusedSocket` is useful when we want to retry the request automatically.
+
+```js
+const http = require('http');
+const Agent = require('agentkeepalive');
+const agent = new Agent();
+
+const req = http
+  .get('http://localhost:3000', { agent }, (res) => {
+    // ...
+  })
+  .on('error', (err) => {
+    if (req.reusedSocket && err.code === 'ECONNRESET') {
+      // retry the request or anything else...
+    }
+  })
+```
+
+This behavior is consistent with Node.js core. But through `agentkeepalive`, you can use this feature in older Node.js version.
+
+## [Benchmark](https://github.com/node-modules/agentkeepalive/tree/master/benchmark)
+
+run the benchmark:
+
+```bash
+cd benchmark
+sh start.sh
+```
+
+Intel(R) Core(TM)2 Duo CPU     P8600  @ 2.40GHz
+
+node@v0.8.9
+
+50 maxSockets, 60 concurrent, 1000 requests per concurrent, 5ms delay
+
+Keep alive agent (30 seconds):
+
+```js
+Transactions:          60000 hits
+Availability:         100.00 %
+Elapsed time:          29.70 secs
+Data transferred:        14.88 MB
+Response time:            0.03 secs
+Transaction rate:      2020.20 trans/sec
+Throughput:           0.50 MB/sec
+Concurrency:           59.84
+Successful transactions:       60000
+Failed transactions:             0
+Longest transaction:          0.15
+Shortest transaction:         0.01
+```
+
+Normal agent:
+
+```js
+Transactions:          60000 hits
+Availability:         100.00 %
+Elapsed time:          46.53 secs
+Data transferred:        14.88 MB
+Response time:            0.05 secs
+Transaction rate:      1289.49 trans/sec
+Throughput:           0.32 MB/sec
+Concurrency:           59.81
+Successful transactions:       60000
+Failed transactions:             0
+Longest transaction:          0.45
+Shortest transaction:         0.00
+```
+
+Socket created:
+
+```bash
+[proxy.js:120000] keepalive, 50 created, 60000 requestFinished, 1200 req/socket, 0 requests, 0 sockets, 0 unusedSockets, 50 timeout
+{" <10ms":662," <15ms":17825," <20ms":20552," <30ms":17646," <40ms":2315," <50ms":567," <100ms":377," <150ms":56," <200ms":0," >=200ms+":0}
+----------------------------------------------------------------
+[proxy.js:120000] normal   , 53866 created, 84260 requestFinished, 1.56 req/socket, 0 requests, 0 sockets
+{" <10ms":75," <15ms":1112," <20ms":10947," <30ms":32130," <40ms":8228," <50ms":3002," <100ms":4274," <150ms":181," <200ms":18," >=200ms+":33}
+```
+
+## License
+
+[MIT](LICENSE)
+
+<!-- GITCONTRIBUTOR_START -->
+
+## Contributors
+
+|[<img src="https://avatars.githubusercontent.com/u/156269?v=4" width="100px;"/><br/><sub><b>fengmk2</b></sub>](https://github.com/fengmk2)<br/>|[<img src="https://avatars.githubusercontent.com/u/985607?v=4" width="100px;"/><br/><sub><b>dead-horse</b></sub>](https://github.com/dead-horse)<br/>|[<img src="https://avatars.githubusercontent.com/u/5557458?v=4" width="100px;"/><br/><sub><b>AndrewLeedham</b></sub>](https://github.com/AndrewLeedham)<br/>|[<img src="https://avatars.githubusercontent.com/u/5243774?v=4" width="100px;"/><br/><sub><b>ngot</b></sub>](https://github.com/ngot)<br/>|[<img src="https://avatars.githubusercontent.com/u/25919630?v=4" width="100px;"/><br/><sub><b>wrynearson</b></sub>](https://github.com/wrynearson)<br/>|[<img src="https://avatars.githubusercontent.com/u/26738844?v=4" width="100px;"/><br/><sub><b>aaronArinder</b></sub>](https://github.com/aaronArinder)<br/>|
+| :---: | :---: | :---: | :---: | :---: | :---: |
+|[<img src="https://avatars.githubusercontent.com/u/10976983?v=4" width="100px;"/><br/><sub><b>alexpenev-s</b></sub>](https://github.com/alexpenev-s)<br/>|[<img src="https://avatars.githubusercontent.com/u/959726?v=4" width="100px;"/><br/><sub><b>blemoine</b></sub>](https://github.com/blemoine)<br/>|[<img src="https://avatars.githubusercontent.com/u/398027?v=4" width="100px;"/><br/><sub><b>bdehamer</b></sub>](https://github.com/bdehamer)<br/>|[<img src="https://avatars.githubusercontent.com/u/4985201?v=4" width="100px;"/><br/><sub><b>DylanPiercey</b></sub>](https://github.com/DylanPiercey)<br/>|[<img src="https://avatars.githubusercontent.com/u/3770250?v=4" width="100px;"/><br/><sub><b>cixel</b></sub>](https://github.com/cixel)<br/>|[<img src="https://avatars.githubusercontent.com/u/2883231?v=4" width="100px;"/><br/><sub><b>HerringtonDarkholme</b></sub>](https://github.com/HerringtonDarkholme)<br/>|
+|[<img src="https://avatars.githubusercontent.com/u/1433247?v=4" width="100px;"/><br/><sub><b>denghongcai</b></sub>](https://github.com/denghongcai)<br/>|[<img src="https://avatars.githubusercontent.com/u/1847934?v=4" width="100px;"/><br/><sub><b>kibertoad</b></sub>](https://github.com/kibertoad)<br/>|[<img src="https://avatars.githubusercontent.com/u/5236150?v=4" width="100px;"/><br/><sub><b>pangorgo</b></sub>](https://github.com/pangorgo)<br/>|[<img src="https://avatars.githubusercontent.com/u/588898?v=4" width="100px;"/><br/><sub><b>mattiash</b></sub>](https://github.com/mattiash)<br/>|[<img src="https://avatars.githubusercontent.com/u/182440?v=4" width="100px;"/><br/><sub><b>nabeelbukhari</b></sub>](https://github.com/nabeelbukhari)<br/>|[<img src="https://avatars.githubusercontent.com/u/1411117?v=4" width="100px;"/><br/><sub><b>pmalouin</b></sub>](https://github.com/pmalouin)<br/>|
+[<img src="https://avatars.githubusercontent.com/u/1404810?v=4" width="100px;"/><br/><sub><b>SimenB</b></sub>](https://github.com/SimenB)<br/>|[<img src="https://avatars.githubusercontent.com/u/2630384?v=4" width="100px;"/><br/><sub><b>vinaybedre</b></sub>](https://github.com/vinaybedre)<br/>|[<img src="https://avatars.githubusercontent.com/u/10933333?v=4" width="100px;"/><br/><sub><b>starkwang</b></sub>](https://github.com/starkwang)<br/>|[<img src="https://avatars.githubusercontent.com/u/6897780?v=4" width="100px;"/><br/><sub><b>killagu</b></sub>](https://github.com/killagu)<br/>|[<img src="https://avatars.githubusercontent.com/u/15345331?v=4" width="100px;"/><br/><sub><b>tony-gutierrez</b></sub>](https://github.com/tony-gutierrez)<br/>|[<img src="https://avatars.githubusercontent.com/u/5856440?v=4" width="100px;"/><br/><sub><b>whxaxes</b></sub>](https://github.com/whxaxes)<br/>
+
+This project follows the git-contributor [spec](https://github.com/xudafeng/git-contributor), auto updated at `Sat Aug 05 2023 02:36:31 GMT+0800`.
+
+<!-- GITCONTRIBUTOR_END -->
diff --git a/node_modules/agentkeepalive/browser.js b/node_modules/agentkeepalive/browser.js
new file mode 100644
index 0000000..29c9398
--- /dev/null
+++ b/node_modules/agentkeepalive/browser.js
@@ -0,0 +1,5 @@
+module.exports = noop;
+module.exports.HttpsAgent = noop;
+
+// Noop function for browser since native api's don't use agents.
+function noop () {}
diff --git a/node_modules/agentkeepalive/index.d.ts b/node_modules/agentkeepalive/index.d.ts
new file mode 100644
index 0000000..2bc70a6
--- /dev/null
+++ b/node_modules/agentkeepalive/index.d.ts
@@ -0,0 +1,65 @@
+import * as http from 'http';
+import * as https from 'https';
+import * as net from 'net';
+
+interface PlainObject {
+  [key: string]: any;
+}
+
+declare class HttpAgent extends http.Agent {
+  constructor(opts?: AgentKeepAlive.HttpOptions);
+  readonly statusChanged: boolean;
+  createConnection(options: net.NetConnectOpts, cb?: Function): net.Socket;
+  createSocket(req: http.IncomingMessage, options: http.RequestOptions, cb: Function): void;
+  getCurrentStatus(): AgentKeepAlive.AgentStatus;
+}
+
+interface Constants {
+  CURRENT_ID: Symbol;
+  CREATE_ID: Symbol;
+  INIT_SOCKET: Symbol;
+  CREATE_HTTPS_CONNECTION: Symbol;
+  SOCKET_CREATED_TIME: Symbol;
+  SOCKET_NAME: Symbol;
+  SOCKET_REQUEST_COUNT: Symbol;
+  SOCKET_REQUEST_FINISHED_COUNT: Symbol;
+}
+
+declare class AgentKeepAlive extends HttpAgent {}
+
+declare namespace AgentKeepAlive {
+  export interface AgentStatus {
+    createSocketCount: number;
+    createSocketErrorCount: number;
+    closeSocketCount: number;
+    errorSocketCount: number;
+    timeoutSocketCount: number;
+    requestCount: number;
+    freeSockets: PlainObject;
+    sockets: PlainObject;
+    requests: PlainObject;
+  }
+
+  interface CommonHttpOption {
+    keepAlive?: boolean | undefined;
+    freeSocketTimeout?: number | undefined;
+    freeSocketKeepAliveTimeout?: number | undefined;
+    timeout?: number | undefined;
+    socketActiveTTL?: number | undefined;
+  }
+
+  export interface HttpOptions extends http.AgentOptions, CommonHttpOption { }
+  export interface HttpsOptions extends https.AgentOptions, CommonHttpOption { }
+
+  export class HttpsAgent extends https.Agent {
+    constructor(opts?: HttpsOptions);
+    readonly statusChanged: boolean;
+    createConnection(options: net.NetConnectOpts, cb?: Function): net.Socket;
+    createSocket(req: http.IncomingMessage, options: http.RequestOptions, cb: Function): void;
+    getCurrentStatus(): AgentStatus;
+  }
+
+  export const constants: Constants;
+}
+
+export = AgentKeepAlive;
diff --git a/node_modules/agentkeepalive/index.js b/node_modules/agentkeepalive/index.js
new file mode 100644
index 0000000..6ca1513
--- /dev/null
+++ b/node_modules/agentkeepalive/index.js
@@ -0,0 +1,5 @@
+'use strict';
+
+module.exports = require('./lib/agent');
+module.exports.HttpsAgent = require('./lib/https_agent');
+module.exports.constants = require('./lib/constants');
diff --git a/node_modules/agentkeepalive/lib/agent.js b/node_modules/agentkeepalive/lib/agent.js
new file mode 100644
index 0000000..8bd354e
--- /dev/null
+++ b/node_modules/agentkeepalive/lib/agent.js
@@ -0,0 +1,402 @@
+'use strict';
+
+const OriginalAgent = require('http').Agent;
+const ms = require('humanize-ms');
+const debug = require('util').debuglog('agentkeepalive');
+const {
+  INIT_SOCKET,
+  CURRENT_ID,
+  CREATE_ID,
+  SOCKET_CREATED_TIME,
+  SOCKET_NAME,
+  SOCKET_REQUEST_COUNT,
+  SOCKET_REQUEST_FINISHED_COUNT,
+} = require('./constants');
+
+// OriginalAgent come from
+// - https://github.com/nodejs/node/blob/v8.12.0/lib/_http_agent.js
+// - https://github.com/nodejs/node/blob/v10.12.0/lib/_http_agent.js
+
+// node <= 10
+let defaultTimeoutListenerCount = 1;
+const majorVersion = parseInt(process.version.split('.', 1)[0].substring(1));
+if (majorVersion >= 11 && majorVersion <= 12) {
+  defaultTimeoutListenerCount = 2;
+} else if (majorVersion >= 13) {
+  defaultTimeoutListenerCount = 3;
+}
+
+function deprecate(message) {
+  console.log('[agentkeepalive:deprecated] %s', message);
+}
+
+class Agent extends OriginalAgent {
+  constructor(options) {
+    options = options || {};
+    options.keepAlive = options.keepAlive !== false;
+    // default is keep-alive and 4s free socket timeout
+    // see https://medium.com/ssense-tech/reduce-networking-errors-in-nodejs-23b4eb9f2d83
+    if (options.freeSocketTimeout === undefined) {
+      options.freeSocketTimeout = 4000;
+    }
+    // Legacy API: keepAliveTimeout should be rename to `freeSocketTimeout`
+    if (options.keepAliveTimeout) {
+      deprecate('options.keepAliveTimeout is deprecated, please use options.freeSocketTimeout instead');
+      options.freeSocketTimeout = options.keepAliveTimeout;
+      delete options.keepAliveTimeout;
+    }
+    // Legacy API: freeSocketKeepAliveTimeout should be rename to `freeSocketTimeout`
+    if (options.freeSocketKeepAliveTimeout) {
+      deprecate('options.freeSocketKeepAliveTimeout is deprecated, please use options.freeSocketTimeout instead');
+      options.freeSocketTimeout = options.freeSocketKeepAliveTimeout;
+      delete options.freeSocketKeepAliveTimeout;
+    }
+
+    // Sets the socket to timeout after timeout milliseconds of inactivity on the socket.
+    // By default is double free socket timeout.
+    if (options.timeout === undefined) {
+      // make sure socket default inactivity timeout >= 8s
+      options.timeout = Math.max(options.freeSocketTimeout * 2, 8000);
+    }
+
+    // support humanize format
+    options.timeout = ms(options.timeout);
+    options.freeSocketTimeout = ms(options.freeSocketTimeout);
+    options.socketActiveTTL = options.socketActiveTTL ? ms(options.socketActiveTTL) : 0;
+
+    super(options);
+
+    this[CURRENT_ID] = 0;
+
+    // create socket success counter
+    this.createSocketCount = 0;
+    this.createSocketCountLastCheck = 0;
+
+    this.createSocketErrorCount = 0;
+    this.createSocketErrorCountLastCheck = 0;
+
+    this.closeSocketCount = 0;
+    this.closeSocketCountLastCheck = 0;
+
+    // socket error event count
+    this.errorSocketCount = 0;
+    this.errorSocketCountLastCheck = 0;
+
+    // request finished counter
+    this.requestCount = 0;
+    this.requestCountLastCheck = 0;
+
+    // including free socket timeout counter
+    this.timeoutSocketCount = 0;
+    this.timeoutSocketCountLastCheck = 0;
+
+    this.on('free', socket => {
+      // https://github.com/nodejs/node/pull/32000
+      // Node.js native agent will check socket timeout eqs agent.options.timeout.
+      // Use the ttl or freeSocketTimeout to overwrite.
+      const timeout = this.calcSocketTimeout(socket);
+      if (timeout > 0 && socket.timeout !== timeout) {
+        socket.setTimeout(timeout);
+      }
+    });
+  }
+
+  get freeSocketKeepAliveTimeout() {
+    deprecate('agent.freeSocketKeepAliveTimeout is deprecated, please use agent.options.freeSocketTimeout instead');
+    return this.options.freeSocketTimeout;
+  }
+
+  get timeout() {
+    deprecate('agent.timeout is deprecated, please use agent.options.timeout instead');
+    return this.options.timeout;
+  }
+
+  get socketActiveTTL() {
+    deprecate('agent.socketActiveTTL is deprecated, please use agent.options.socketActiveTTL instead');
+    return this.options.socketActiveTTL;
+  }
+
+  calcSocketTimeout(socket) {
+    /**
+     * return <= 0: should free socket
+     * return > 0: should update socket timeout
+     * return undefined: not find custom timeout
+     */
+    let freeSocketTimeout = this.options.freeSocketTimeout;
+    const socketActiveTTL = this.options.socketActiveTTL;
+    if (socketActiveTTL) {
+      // check socketActiveTTL
+      const aliveTime = Date.now() - socket[SOCKET_CREATED_TIME];
+      const diff = socketActiveTTL - aliveTime;
+      if (diff <= 0) {
+        return diff;
+      }
+      if (freeSocketTimeout && diff < freeSocketTimeout) {
+        freeSocketTimeout = diff;
+      }
+    }
+    // set freeSocketTimeout
+    if (freeSocketTimeout) {
+      // set free keepalive timer
+      // try to use socket custom freeSocketTimeout first, support headers['keep-alive']
+      // https://github.com/node-modules/urllib/blob/b76053020923f4d99a1c93cf2e16e0c5ba10bacf/lib/urllib.js#L498
+      const customFreeSocketTimeout = socket.freeSocketTimeout || socket.freeSocketKeepAliveTimeout;
+      return customFreeSocketTimeout || freeSocketTimeout;
+    }
+  }
+
+  keepSocketAlive(socket) {
+    const result = super.keepSocketAlive(socket);
+    // should not keepAlive, do nothing
+    if (!result) return result;
+
+    const customTimeout = this.calcSocketTimeout(socket);
+    if (typeof customTimeout === 'undefined') {
+      return true;
+    }
+    if (customTimeout <= 0) {
+      debug('%s(requests: %s, finished: %s) free but need to destroy by TTL, request count %s, diff is %s',
+        socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT], customTimeout);
+      return false;
+    }
+    if (socket.timeout !== customTimeout) {
+      socket.setTimeout(customTimeout);
+    }
+    return true;
+  }
+
+  // only call on addRequest
+  reuseSocket(...args) {
+    // reuseSocket(socket, req)
+    super.reuseSocket(...args);
+    const socket = args[0];
+    const req = args[1];
+    req.reusedSocket = true;
+    const agentTimeout = this.options.timeout;
+    if (getSocketTimeout(socket) !== agentTimeout) {
+      // reset timeout before use
+      socket.setTimeout(agentTimeout);
+      debug('%s reset timeout to %sms', socket[SOCKET_NAME], agentTimeout);
+    }
+    socket[SOCKET_REQUEST_COUNT]++;
+    debug('%s(requests: %s, finished: %s) reuse on addRequest, timeout %sms',
+      socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT],
+      getSocketTimeout(socket));
+  }
+
+  [CREATE_ID]() {
+    const id = this[CURRENT_ID]++;
+    if (this[CURRENT_ID] === Number.MAX_SAFE_INTEGER) this[CURRENT_ID] = 0;
+    return id;
+  }
+
+  [INIT_SOCKET](socket, options) {
+    // bugfix here.
+    // https on node 8, 10 won't set agent.options.timeout by default
+    // TODO: need to fix on node itself
+    if (options.timeout) {
+      const timeout = getSocketTimeout(socket);
+      if (!timeout) {
+        socket.setTimeout(options.timeout);
+      }
+    }
+
+    if (this.options.keepAlive) {
+      // Disable Nagle's algorithm: http://blog.caustik.com/2012/04/08/scaling-node-js-to-100k-concurrent-connections/
+      // https://fengmk2.com/benchmark/nagle-algorithm-delayed-ack-mock.html
+      socket.setNoDelay(true);
+    }
+    this.createSocketCount++;
+    if (this.options.socketActiveTTL) {
+      socket[SOCKET_CREATED_TIME] = Date.now();
+    }
+    // don't show the hole '-----BEGIN CERTIFICATE----' key string
+    socket[SOCKET_NAME] = `sock[${this[CREATE_ID]()}#${options._agentKey}]`.split('-----BEGIN', 1)[0];
+    socket[SOCKET_REQUEST_COUNT] = 1;
+    socket[SOCKET_REQUEST_FINISHED_COUNT] = 0;
+    installListeners(this, socket, options);
+  }
+
+  createConnection(options, oncreate) {
+    let called = false;
+    const onNewCreate = (err, socket) => {
+      if (called) return;
+      called = true;
+
+      if (err) {
+        this.createSocketErrorCount++;
+        return oncreate(err);
+      }
+      this[INIT_SOCKET](socket, options);
+      oncreate(err, socket);
+    };
+
+    const newSocket = super.createConnection(options, onNewCreate);
+    if (newSocket) onNewCreate(null, newSocket);
+    return newSocket;
+  }
+
+  get statusChanged() {
+    const changed = this.createSocketCount !== this.createSocketCountLastCheck ||
+      this.createSocketErrorCount !== this.createSocketErrorCountLastCheck ||
+      this.closeSocketCount !== this.closeSocketCountLastCheck ||
+      this.errorSocketCount !== this.errorSocketCountLastCheck ||
+      this.timeoutSocketCount !== this.timeoutSocketCountLastCheck ||
+      this.requestCount !== this.requestCountLastCheck;
+    if (changed) {
+      this.createSocketCountLastCheck = this.createSocketCount;
+      this.createSocketErrorCountLastCheck = this.createSocketErrorCount;
+      this.closeSocketCountLastCheck = this.closeSocketCount;
+      this.errorSocketCountLastCheck = this.errorSocketCount;
+      this.timeoutSocketCountLastCheck = this.timeoutSocketCount;
+      this.requestCountLastCheck = this.requestCount;
+    }
+    return changed;
+  }
+
+  getCurrentStatus() {
+    return {
+      createSocketCount: this.createSocketCount,
+      createSocketErrorCount: this.createSocketErrorCount,
+      closeSocketCount: this.closeSocketCount,
+      errorSocketCount: this.errorSocketCount,
+      timeoutSocketCount: this.timeoutSocketCount,
+      requestCount: this.requestCount,
+      freeSockets: inspect(this.freeSockets),
+      sockets: inspect(this.sockets),
+      requests: inspect(this.requests),
+    };
+  }
+}
+
+// node 8 don't has timeout attribute on socket
+// https://github.com/nodejs/node/pull/21204/files#diff-e6ef024c3775d787c38487a6309e491dR408
+function getSocketTimeout(socket) {
+  return socket.timeout || socket._idleTimeout;
+}
+
+function installListeners(agent, socket, options) {
+  debug('%s create, timeout %sms', socket[SOCKET_NAME], getSocketTimeout(socket));
+
+  // listener socket events: close, timeout, error, free
+  function onFree() {
+    // create and socket.emit('free') logic
+    // https://github.com/nodejs/node/blob/master/lib/_http_agent.js#L311
+    // no req on the socket, it should be the new socket
+    if (!socket._httpMessage && socket[SOCKET_REQUEST_COUNT] === 1) return;
+
+    socket[SOCKET_REQUEST_FINISHED_COUNT]++;
+    agent.requestCount++;
+    debug('%s(requests: %s, finished: %s) free',
+      socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT]);
+
+    // should reuse on pedding requests?
+    const name = agent.getName(options);
+    if (socket.writable && agent.requests[name] && agent.requests[name].length) {
+      // will be reuse on agent free listener
+      socket[SOCKET_REQUEST_COUNT]++;
+      debug('%s(requests: %s, finished: %s) will be reuse on agent free event',
+        socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT]);
+    }
+  }
+  socket.on('free', onFree);
+
+  function onClose(isError) {
+    debug('%s(requests: %s, finished: %s) close, isError: %s',
+      socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT], isError);
+    agent.closeSocketCount++;
+  }
+  socket.on('close', onClose);
+
+  // start socket timeout handler
+  function onTimeout() {
+    // onTimeout and emitRequestTimeout(_http_client.js)
+    // https://github.com/nodejs/node/blob/v12.x/lib/_http_client.js#L711
+    const listenerCount = socket.listeners('timeout').length;
+    // node <= 10, default listenerCount is 1, onTimeout
+    // 11 < node <= 12, default listenerCount is 2, onTimeout and emitRequestTimeout
+    // node >= 13, default listenerCount is 3, onTimeout,
+    //   onTimeout(https://github.com/nodejs/node/pull/32000/files#diff-5f7fb0850412c6be189faeddea6c5359R333)
+    //   and emitRequestTimeout
+    const timeout = getSocketTimeout(socket);
+    const req = socket._httpMessage;
+    const reqTimeoutListenerCount = req && req.listeners('timeout').length || 0;
+    debug('%s(requests: %s, finished: %s) timeout after %sms, listeners %s, defaultTimeoutListenerCount %s, hasHttpRequest %s, HttpRequest timeoutListenerCount %s',
+      socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT],
+      timeout, listenerCount, defaultTimeoutListenerCount, !!req, reqTimeoutListenerCount);
+    if (debug.enabled) {
+      debug('timeout listeners: %s', socket.listeners('timeout').map(f => f.name).join(', '));
+    }
+    agent.timeoutSocketCount++;
+    const name = agent.getName(options);
+    if (agent.freeSockets[name] && agent.freeSockets[name].indexOf(socket) !== -1) {
+      // free socket timeout, destroy quietly
+      socket.destroy();
+      // Remove it from freeSockets list immediately to prevent new requests
+      // from being sent through this socket.
+      agent.removeSocket(socket, options);
+      debug('%s is free, destroy quietly', socket[SOCKET_NAME]);
+    } else {
+      // if there is no any request socket timeout handler,
+      // agent need to handle socket timeout itself.
+      //
+      // custom request socket timeout handle logic must follow these rules:
+      //  1. Destroy socket first
+      //  2. Must emit socket 'agentRemove' event tell agent remove socket
+      //     from freeSockets list immediately.
+      //     Otherise you may be get 'socket hang up' error when reuse
+      //     free socket and timeout happen in the same time.
+      if (reqTimeoutListenerCount === 0) {
+        const error = new Error('Socket timeout');
+        error.code = 'ERR_SOCKET_TIMEOUT';
+        error.timeout = timeout;
+        // must manually call socket.end() or socket.destroy() to end the connection.
+        // https://nodejs.org/dist/latest-v10.x/docs/api/net.html#net_socket_settimeout_timeout_callback
+        socket.destroy(error);
+        agent.removeSocket(socket, options);
+        debug('%s destroy with timeout error', socket[SOCKET_NAME]);
+      }
+    }
+  }
+  socket.on('timeout', onTimeout);
+
+  function onError(err) {
+    const listenerCount = socket.listeners('error').length;
+    debug('%s(requests: %s, finished: %s) error: %s, listenerCount: %s',
+      socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT],
+      err, listenerCount);
+    agent.errorSocketCount++;
+    if (listenerCount === 1) {
+      // if socket don't contain error event handler, don't catch it, emit it again
+      debug('%s emit uncaught error event', socket[SOCKET_NAME]);
+      socket.removeListener('error', onError);
+      socket.emit('error', err);
+    }
+  }
+  socket.on('error', onError);
+
+  function onRemove() {
+    debug('%s(requests: %s, finished: %s) agentRemove',
+      socket[SOCKET_NAME],
+      socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT]);
+    // We need this function for cases like HTTP 'upgrade'
+    // (defined by WebSockets) where we need to remove a socket from the
+    // pool because it'll be locked up indefinitely
+    socket.removeListener('close', onClose);
+    socket.removeListener('error', onError);
+    socket.removeListener('free', onFree);
+    socket.removeListener('timeout', onTimeout);
+    socket.removeListener('agentRemove', onRemove);
+  }
+  socket.on('agentRemove', onRemove);
+}
+
+module.exports = Agent;
+
+function inspect(obj) {
+  const res = {};
+  for (const key in obj) {
+    res[key] = obj[key].length;
+  }
+  return res;
+}
diff --git a/node_modules/agentkeepalive/lib/constants.js b/node_modules/agentkeepalive/lib/constants.js
new file mode 100644
index 0000000..ca7ab97
--- /dev/null
+++ b/node_modules/agentkeepalive/lib/constants.js
@@ -0,0 +1,14 @@
+'use strict';
+
+module.exports = {
+  // agent
+  CURRENT_ID: Symbol('agentkeepalive#currentId'),
+  CREATE_ID: Symbol('agentkeepalive#createId'),
+  INIT_SOCKET: Symbol('agentkeepalive#initSocket'),
+  CREATE_HTTPS_CONNECTION: Symbol('agentkeepalive#createHttpsConnection'),
+  // socket
+  SOCKET_CREATED_TIME: Symbol('agentkeepalive#socketCreatedTime'),
+  SOCKET_NAME: Symbol('agentkeepalive#socketName'),
+  SOCKET_REQUEST_COUNT: Symbol('agentkeepalive#socketRequestCount'),
+  SOCKET_REQUEST_FINISHED_COUNT: Symbol('agentkeepalive#socketRequestFinishedCount'),
+};
diff --git a/node_modules/agentkeepalive/lib/https_agent.js b/node_modules/agentkeepalive/lib/https_agent.js
new file mode 100644
index 0000000..344fb32
--- /dev/null
+++ b/node_modules/agentkeepalive/lib/https_agent.js
@@ -0,0 +1,51 @@
+'use strict';
+
+const OriginalHttpsAgent = require('https').Agent;
+const HttpAgent = require('./agent');
+const {
+  INIT_SOCKET,
+  CREATE_HTTPS_CONNECTION,
+} = require('./constants');
+
+class HttpsAgent extends HttpAgent {
+  constructor(options) {
+    super(options);
+
+    this.defaultPort = 443;
+    this.protocol = 'https:';
+    this.maxCachedSessions = this.options.maxCachedSessions;
+    /* istanbul ignore next */
+    if (this.maxCachedSessions === undefined) {
+      this.maxCachedSessions = 100;
+    }
+
+    this._sessionCache = {
+      map: {},
+      list: [],
+    };
+  }
+
+  createConnection(options, oncreate) {
+    const socket = this[CREATE_HTTPS_CONNECTION](options, oncreate);
+    this[INIT_SOCKET](socket, options);
+    return socket;
+  }
+}
+
+// https://github.com/nodejs/node/blob/master/lib/https.js#L89
+HttpsAgent.prototype[CREATE_HTTPS_CONNECTION] = OriginalHttpsAgent.prototype.createConnection;
+
+[
+  'getName',
+  '_getSession',
+  '_cacheSession',
+  // https://github.com/nodejs/node/pull/4982
+  '_evictSession',
+].forEach(function(method) {
+  /* istanbul ignore next */
+  if (typeof OriginalHttpsAgent.prototype[method] === 'function') {
+    HttpsAgent.prototype[method] = OriginalHttpsAgent.prototype[method];
+  }
+});
+
+module.exports = HttpsAgent;
diff --git a/node_modules/agentkeepalive/package.json b/node_modules/agentkeepalive/package.json
new file mode 100644
index 0000000..d8e9aa7
--- /dev/null
+++ b/node_modules/agentkeepalive/package.json
@@ -0,0 +1,56 @@
+{
+  "name": "agentkeepalive",
+  "version": "4.5.0",
+  "description": "Missing keepalive http.Agent",
+  "main": "index.js",
+  "browser": "browser.js",
+  "files": [
+    "index.js",
+    "index.d.ts",
+    "browser.js",
+    "lib"
+  ],
+  "scripts": {
+    "contributor": "git-contributor",
+    "test": "npm run lint && egg-bin test --full-trace",
+    "test-local": "egg-bin test --full-trace",
+    "cov": "cross-env NODE_DEBUG=agentkeepalive egg-bin cov --full-trace",
+    "ci": "npm run lint && npm run cov",
+    "lint": "eslint lib test index.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/node-modules/agentkeepalive.git"
+  },
+  "bugs": {
+    "url": "https://github.com/node-modules/agentkeepalive/issues"
+  },
+  "keywords": [
+    "http",
+    "https",
+    "agent",
+    "keepalive",
+    "agentkeepalive",
+    "HttpAgent",
+    "HttpsAgent"
+  ],
+  "dependencies": {
+    "humanize-ms": "^1.2.1"
+  },
+  "devDependencies": {
+    "coffee": "^5.3.0",
+    "cross-env": "^6.0.3",
+    "egg-bin": "^4.9.0",
+    "eslint": "^5.7.0",
+    "eslint-config-egg": "^7.1.0",
+    "git-contributor": "^2.0.0",
+    "mm": "^2.4.1",
+    "pedding": "^1.1.0",
+    "typescript": "^3.8.3"
+  },
+  "engines": {
+    "node": ">= 8.0.0"
+  },
+  "author": "fengmk2 <fengmk2@gmail.com> (https://github.com/fengmk2)",
+  "license": "MIT"
+}
diff --git a/node_modules/aggregate-error/index.d.ts b/node_modules/aggregate-error/index.d.ts
new file mode 100644
index 0000000..502bf7a
--- /dev/null
+++ b/node_modules/aggregate-error/index.d.ts
@@ -0,0 +1,51 @@
+/**
+Create an error from multiple errors.
+*/
+declare class AggregateError<T extends Error = Error> extends Error implements Iterable<T> {
+	readonly name: 'AggregateError';
+
+	/**
+	@param errors - If a string, a new `Error` is created with the string as the error message. If a non-Error object, a new `Error` is created with all properties from the object copied over.
+	@returns An Error that is also an [`Iterable`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Iterators_and_Generators#Iterables) for the individual errors.
+
+	@example
+	```
+	import AggregateError = require('aggregate-error');
+
+	const error = new AggregateError([new Error('foo'), 'bar', {message: 'baz'}]);
+
+	throw error;
+
+	// AggregateError:
+	//	Error: foo
+	//		at Object.<anonymous> (/Users/sindresorhus/dev/aggregate-error/example.js:3:33)
+	//	Error: bar
+	//		at Object.<anonymous> (/Users/sindresorhus/dev/aggregate-error/example.js:3:13)
+	//	Error: baz
+	//		at Object.<anonymous> (/Users/sindresorhus/dev/aggregate-error/example.js:3:13)
+	//	at AggregateError (/Users/sindresorhus/dev/aggregate-error/index.js:19:3)
+	//	at Object.<anonymous> (/Users/sindresorhus/dev/aggregate-error/example.js:3:13)
+	//	at Module._compile (module.js:556:32)
+	//	at Object.Module._extensions..js (module.js:565:10)
+	//	at Module.load (module.js:473:32)
+	//	at tryModuleLoad (module.js:432:12)
+	//	at Function.Module._load (module.js:424:3)
+	//	at Module.runMain (module.js:590:10)
+	//	at run (bootstrap_node.js:394:7)
+	//	at startup (bootstrap_node.js:149:9)
+
+
+	for (const individualError of error) {
+		console.log(individualError);
+	}
+	//=> [Error: foo]
+	//=> [Error: bar]
+	//=> [Error: baz]
+	```
+	*/
+	constructor(errors: ReadonlyArray<T | {[key: string]: any} | string>);
+
+	[Symbol.iterator](): IterableIterator<T>;
+}
+
+export = AggregateError;
diff --git a/node_modules/aggregate-error/index.js b/node_modules/aggregate-error/index.js
new file mode 100644
index 0000000..ba5bf02
--- /dev/null
+++ b/node_modules/aggregate-error/index.js
@@ -0,0 +1,47 @@
+'use strict';
+const indentString = require('indent-string');
+const cleanStack = require('clean-stack');
+
+const cleanInternalStack = stack => stack.replace(/\s+at .*aggregate-error\/index.js:\d+:\d+\)?/g, '');
+
+class AggregateError extends Error {
+	constructor(errors) {
+		if (!Array.isArray(errors)) {
+			throw new TypeError(`Expected input to be an Array, got ${typeof errors}`);
+		}
+
+		errors = [...errors].map(error => {
+			if (error instanceof Error) {
+				return error;
+			}
+
+			if (error !== null && typeof error === 'object') {
+				// Handle plain error objects with message property and/or possibly other metadata
+				return Object.assign(new Error(error.message), error);
+			}
+
+			return new Error(error);
+		});
+
+		let message = errors
+			.map(error => {
+				// The `stack` property is not standardized, so we can't assume it exists
+				return typeof error.stack === 'string' ? cleanInternalStack(cleanStack(error.stack)) : String(error);
+			})
+			.join('\n');
+		message = '\n' + indentString(message, 4);
+		super(message);
+
+		this.name = 'AggregateError';
+
+		Object.defineProperty(this, '_errors', {value: errors});
+	}
+
+	* [Symbol.iterator]() {
+		for (const error of this._errors) {
+			yield error;
+		}
+	}
+}
+
+module.exports = AggregateError;
diff --git a/node_modules/aggregate-error/license b/node_modules/aggregate-error/license
new file mode 100644
index 0000000..e7af2f7
--- /dev/null
+++ b/node_modules/aggregate-error/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/aggregate-error/package.json b/node_modules/aggregate-error/package.json
new file mode 100644
index 0000000..74fcc37
--- /dev/null
+++ b/node_modules/aggregate-error/package.json
@@ -0,0 +1,41 @@
+{
+	"name": "aggregate-error",
+	"version": "3.1.0",
+	"description": "Create an error from multiple errors",
+	"license": "MIT",
+	"repository": "sindresorhus/aggregate-error",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=8"
+	},
+	"scripts": {
+		"test": "xo && ava && tsd"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"aggregate",
+		"error",
+		"combine",
+		"multiple",
+		"many",
+		"collection",
+		"iterable",
+		"iterator"
+	],
+	"dependencies": {
+		"clean-stack": "^2.0.0",
+		"indent-string": "^4.0.0"
+	},
+	"devDependencies": {
+		"ava": "^2.4.0",
+		"tsd": "^0.7.1",
+		"xo": "^0.25.3"
+	}
+}
diff --git a/node_modules/aggregate-error/readme.md b/node_modules/aggregate-error/readme.md
new file mode 100644
index 0000000..850de98
--- /dev/null
+++ b/node_modules/aggregate-error/readme.md
@@ -0,0 +1,61 @@
+# aggregate-error [![Build Status](https://travis-ci.org/sindresorhus/aggregate-error.svg?branch=master)](https://travis-ci.org/sindresorhus/aggregate-error)
+
+> Create an error from multiple errors
+
+
+## Install
+
+```
+$ npm install aggregate-error
+```
+
+
+## Usage
+
+```js
+const AggregateError = require('aggregate-error');
+
+const error = new AggregateError([new Error('foo'), 'bar', {message: 'baz'}]);
+
+throw error;
+/*
+AggregateError:
+    Error: foo
+        at Object.<anonymous> (/Users/sindresorhus/dev/aggregate-error/example.js:3:33)
+    Error: bar
+        at Object.<anonymous> (/Users/sindresorhus/dev/aggregate-error/example.js:3:13)
+    Error: baz
+        at Object.<anonymous> (/Users/sindresorhus/dev/aggregate-error/example.js:3:13)
+    at AggregateError (/Users/sindresorhus/dev/aggregate-error/index.js:19:3)
+    at Object.<anonymous> (/Users/sindresorhus/dev/aggregate-error/example.js:3:13)
+    at Module._compile (module.js:556:32)
+    at Object.Module._extensions..js (module.js:565:10)
+    at Module.load (module.js:473:32)
+    at tryModuleLoad (module.js:432:12)
+    at Function.Module._load (module.js:424:3)
+    at Module.runMain (module.js:590:10)
+    at run (bootstrap_node.js:394:7)
+    at startup (bootstrap_node.js:149:9)
+*/
+
+for (const individualError of error) {
+	console.log(individualError);
+}
+//=> [Error: foo]
+//=> [Error: bar]
+//=> [Error: baz]
+```
+
+
+## API
+
+### AggregateError(errors)
+
+Returns an `Error` that is also an [`Iterable`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Iterators_and_Generators#Iterables) for the individual errors.
+
+#### errors
+
+Type: `Array<Error|Object|string>`
+
+If a string, a new `Error` is created with the string as the error message.<br>
+If a non-Error object, a new `Error` is created with all properties from the object copied over.
diff --git a/node_modules/ansi-regex/index.d.ts b/node_modules/ansi-regex/index.d.ts
new file mode 100644
index 0000000..2dbf6af
--- /dev/null
+++ b/node_modules/ansi-regex/index.d.ts
@@ -0,0 +1,37 @@
+declare namespace ansiRegex {
+	interface Options {
+		/**
+		Match only the first ANSI escape.
+
+		@default false
+		*/
+		onlyFirst: boolean;
+	}
+}
+
+/**
+Regular expression for matching ANSI escape codes.
+
+@example
+```
+import ansiRegex = require('ansi-regex');
+
+ansiRegex().test('\u001B[4mcake\u001B[0m');
+//=> true
+
+ansiRegex().test('cake');
+//=> false
+
+'\u001B[4mcake\u001B[0m'.match(ansiRegex());
+//=> ['\u001B[4m', '\u001B[0m']
+
+'\u001B[4mcake\u001B[0m'.match(ansiRegex({onlyFirst: true}));
+//=> ['\u001B[4m']
+
+'\u001B]8;;https://github.com\u0007click\u001B]8;;\u0007'.match(ansiRegex());
+//=> ['\u001B]8;;https://github.com\u0007', '\u001B]8;;\u0007']
+```
+*/
+declare function ansiRegex(options?: ansiRegex.Options): RegExp;
+
+export = ansiRegex;
diff --git a/node_modules/ansi-regex/index.js b/node_modules/ansi-regex/index.js
new file mode 100644
index 0000000..616ff83
--- /dev/null
+++ b/node_modules/ansi-regex/index.js
@@ -0,0 +1,10 @@
+'use strict';
+
+module.exports = ({onlyFirst = false} = {}) => {
+	const pattern = [
+		'[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]+)*|[a-zA-Z\\d]+(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)',
+		'(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-ntqry=><~]))'
+	].join('|');
+
+	return new RegExp(pattern, onlyFirst ? undefined : 'g');
+};
diff --git a/node_modules/ansi-regex/license b/node_modules/ansi-regex/license
new file mode 100644
index 0000000..e7af2f7
--- /dev/null
+++ b/node_modules/ansi-regex/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/ansi-regex/package.json b/node_modules/ansi-regex/package.json
new file mode 100644
index 0000000..017f531
--- /dev/null
+++ b/node_modules/ansi-regex/package.json
@@ -0,0 +1,55 @@
+{
+	"name": "ansi-regex",
+	"version": "5.0.1",
+	"description": "Regular expression for matching ANSI escape codes",
+	"license": "MIT",
+	"repository": "chalk/ansi-regex",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=8"
+	},
+	"scripts": {
+		"test": "xo && ava && tsd",
+		"view-supported": "node fixtures/view-codes.js"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"ansi",
+		"styles",
+		"color",
+		"colour",
+		"colors",
+		"terminal",
+		"console",
+		"cli",
+		"string",
+		"tty",
+		"escape",
+		"formatting",
+		"rgb",
+		"256",
+		"shell",
+		"xterm",
+		"command-line",
+		"text",
+		"regex",
+		"regexp",
+		"re",
+		"match",
+		"test",
+		"find",
+		"pattern"
+	],
+	"devDependencies": {
+		"ava": "^2.4.0",
+		"tsd": "^0.9.0",
+		"xo": "^0.25.3"
+	}
+}
diff --git a/node_modules/ansi-regex/readme.md b/node_modules/ansi-regex/readme.md
new file mode 100644
index 0000000..4d848bc
--- /dev/null
+++ b/node_modules/ansi-regex/readme.md
@@ -0,0 +1,78 @@
+# ansi-regex
+
+> Regular expression for matching [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code)
+
+
+## Install
+
+```
+$ npm install ansi-regex
+```
+
+
+## Usage
+
+```js
+const ansiRegex = require('ansi-regex');
+
+ansiRegex().test('\u001B[4mcake\u001B[0m');
+//=> true
+
+ansiRegex().test('cake');
+//=> false
+
+'\u001B[4mcake\u001B[0m'.match(ansiRegex());
+//=> ['\u001B[4m', '\u001B[0m']
+
+'\u001B[4mcake\u001B[0m'.match(ansiRegex({onlyFirst: true}));
+//=> ['\u001B[4m']
+
+'\u001B]8;;https://github.com\u0007click\u001B]8;;\u0007'.match(ansiRegex());
+//=> ['\u001B]8;;https://github.com\u0007', '\u001B]8;;\u0007']
+```
+
+
+## API
+
+### ansiRegex(options?)
+
+Returns a regex for matching ANSI escape codes.
+
+#### options
+
+Type: `object`
+
+##### onlyFirst
+
+Type: `boolean`<br>
+Default: `false` *(Matches any ANSI escape codes in a string)*
+
+Match only the first ANSI escape.
+
+
+## FAQ
+
+### Why do you test for codes not in the ECMA 48 standard?
+
+Some of the codes we run as a test are codes that we acquired finding various lists of non-standard or manufacturer specific codes. We test for both standard and non-standard codes, as most of them follow the same or similar format and can be safely matched in strings without the risk of removing actual string content. There are a few non-standard control codes that do not follow the traditional format (i.e. they end in numbers) thus forcing us to exclude them from the test because we cannot reliably match them.
+
+On the historical side, those ECMA standards were established in the early 90's whereas the VT100, for example, was designed in the mid/late 70's. At that point in time, control codes were still pretty ungoverned and engineers used them for a multitude of things, namely to activate hardware ports that may have been proprietary. Somewhere else you see a similar 'anarchy' of codes is in the x86 architecture for processors; there are a ton of "interrupts" that can mean different things on certain brands of processors, most of which have been phased out.
+
+
+## Maintainers
+
+- [Sindre Sorhus](https://github.com/sindresorhus)
+- [Josh Junon](https://github.com/qix-)
+
+
+---
+
+<div align="center">
+	<b>
+		<a href="https://tidelift.com/subscription/pkg/npm-ansi-regex?utm_source=npm-ansi-regex&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
+	</b>
+	<br>
+	<sub>
+		Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
+	</sub>
+</div>
diff --git a/node_modules/aproba/CHANGELOG.md b/node_modules/aproba/CHANGELOG.md
new file mode 100644
index 0000000..bab30ec
--- /dev/null
+++ b/node_modules/aproba/CHANGELOG.md
@@ -0,0 +1,4 @@
+2.0.0
+  * Drop support for 0.10 and 0.12. They haven't been in travis but still,
+    since we _know_ we'll break with them now it's only polite to do a
+    major bump.
diff --git a/node_modules/aproba/LICENSE b/node_modules/aproba/LICENSE
new file mode 100644
index 0000000..f4be44d
--- /dev/null
+++ b/node_modules/aproba/LICENSE
@@ -0,0 +1,14 @@
+Copyright (c) 2015, Rebecca Turner <me@re-becca.org>
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
diff --git a/node_modules/aproba/README.md b/node_modules/aproba/README.md
new file mode 100644
index 0000000..0bfc594
--- /dev/null
+++ b/node_modules/aproba/README.md
@@ -0,0 +1,94 @@
+aproba
+======
+
+A ridiculously light-weight function argument validator
+
+```
+var validate = require("aproba")
+
+function myfunc(a, b, c) {
+  // `a` must be a string, `b` a number, `c` a function
+  validate('SNF', arguments) // [a,b,c] is also valid
+}
+
+myfunc('test', 23, function () {}) // ok
+myfunc(123, 23, function () {}) // type error
+myfunc('test', 23) // missing arg error
+myfunc('test', 23, function () {}, true) // too many args error
+
+```
+
+Valid types are:
+
+| type | description
+| :--: | :----------
+| *    | matches any type
+| A    | `Array.isArray` OR an `arguments` object
+| S    | typeof == string
+| N    | typeof == number
+| F    | typeof == function
+| O    | typeof == object and not type A and not type E
+| B    | typeof == boolean
+| E    | `instanceof Error` OR `null` **(special: see below)**
+| Z    | == `null`
+
+Validation failures throw one of three exception types, distinguished by a
+`code` property of `EMISSINGARG`, `EINVALIDTYPE` or `ETOOMANYARGS`.
+
+If you pass in an invalid type then it will throw with a code of
+`EUNKNOWNTYPE`.
+
+If an **error** argument is found and is not null then the remaining
+arguments are optional.  That is, if you say `ESO` then that's like using a
+non-magical `E` in: `E|ESO|ZSO`.
+
+### But I have optional arguments?!
+
+You can provide more than one signature by separating them with pipes `|`.
+If any signature matches the arguments then they'll be considered valid.
+
+So for example, say you wanted to write a signature for
+`fs.createWriteStream`.  The docs for it describe it thusly:
+
+```
+fs.createWriteStream(path[, options])
+```
+
+This would be a signature of `SO|S`.  That is, a string and and object, or
+just a string.
+
+Now, if you read the full `fs` docs, you'll see that actually path can ALSO
+be a buffer.  And options can be a string, that is:
+```
+path <String> | <Buffer>
+options <String> | <Object>
+```
+
+To reproduce this you have to fully enumerate all of the possible
+combinations and that implies a signature of `SO|SS|OO|OS|S|O`.  The
+awkwardness is a feature: It reminds you of the complexity you're adding to
+your API when you do this sort of thing.
+
+
+### Browser support
+
+This has no dependencies and should work in browsers, though you'll have
+noisier stack traces.
+
+### Why this exists
+
+I wanted a very simple argument validator. It needed to do two things:
+
+1. Be more concise and easier to use than assertions
+
+2. Not encourage an infinite bikeshed of DSLs
+
+This is why types are specified by a single character and there's no such
+thing as an optional argument. 
+
+This is not intended to validate user data. This is specifically about
+asserting the interface of your functions.
+
+If you need greater validation, I encourage you to write them by hand or
+look elsewhere.
+
diff --git a/node_modules/aproba/index.js b/node_modules/aproba/index.js
new file mode 100644
index 0000000..fd94748
--- /dev/null
+++ b/node_modules/aproba/index.js
@@ -0,0 +1,105 @@
+'use strict'
+module.exports = validate
+
+function isArguments (thingy) {
+  return thingy != null && typeof thingy === 'object' && thingy.hasOwnProperty('callee')
+}
+
+const types = {
+  '*': {label: 'any', check: () => true},
+  A: {label: 'array', check: _ => Array.isArray(_) || isArguments(_)},
+  S: {label: 'string', check: _ => typeof _ === 'string'},
+  N: {label: 'number', check: _ => typeof _ === 'number'},
+  F: {label: 'function', check: _ => typeof _ === 'function'},
+  O: {label: 'object', check: _ => typeof _ === 'object' && _ != null && !types.A.check(_) && !types.E.check(_)},
+  B: {label: 'boolean', check: _ => typeof _ === 'boolean'},
+  E: {label: 'error', check: _ => _ instanceof Error},
+  Z: {label: 'null', check: _ => _ == null}
+}
+
+function addSchema (schema, arity) {
+  const group = arity[schema.length] = arity[schema.length] || []
+  if (group.indexOf(schema) === -1) group.push(schema)
+}
+
+function validate (rawSchemas, args) {
+  if (arguments.length !== 2) throw wrongNumberOfArgs(['SA'], arguments.length)
+  if (!rawSchemas) throw missingRequiredArg(0, 'rawSchemas')
+  if (!args) throw missingRequiredArg(1, 'args')
+  if (!types.S.check(rawSchemas)) throw invalidType(0, ['string'], rawSchemas)
+  if (!types.A.check(args)) throw invalidType(1, ['array'], args)
+  const schemas = rawSchemas.split('|')
+  const arity = {}
+
+  schemas.forEach(schema => {
+    for (let ii = 0; ii < schema.length; ++ii) {
+      const type = schema[ii]
+      if (!types[type]) throw unknownType(ii, type)
+    }
+    if (/E.*E/.test(schema)) throw moreThanOneError(schema)
+    addSchema(schema, arity)
+    if (/E/.test(schema)) {
+      addSchema(schema.replace(/E.*$/, 'E'), arity)
+      addSchema(schema.replace(/E/, 'Z'), arity)
+      if (schema.length === 1) addSchema('', arity)
+    }
+  })
+  let matching = arity[args.length]
+  if (!matching) {
+    throw wrongNumberOfArgs(Object.keys(arity), args.length)
+  }
+  for (let ii = 0; ii < args.length; ++ii) {
+    let newMatching = matching.filter(schema => {
+      const type = schema[ii]
+      const typeCheck = types[type].check
+      return typeCheck(args[ii])
+    })
+    if (!newMatching.length) {
+      const labels = matching.map(_ => types[_[ii]].label).filter(_ => _ != null)
+      throw invalidType(ii, labels, args[ii])
+    }
+    matching = newMatching
+  }
+}
+
+function missingRequiredArg (num) {
+  return newException('EMISSINGARG', 'Missing required argument #' + (num + 1))
+}
+
+function unknownType (num, type) {
+  return newException('EUNKNOWNTYPE', 'Unknown type ' + type + ' in argument #' + (num + 1))
+}
+
+function invalidType (num, expectedTypes, value) {
+  let valueType
+  Object.keys(types).forEach(typeCode => {
+    if (types[typeCode].check(value)) valueType = types[typeCode].label
+  })
+  return newException('EINVALIDTYPE', 'Argument #' + (num + 1) + ': Expected ' +
+    englishList(expectedTypes) + ' but got ' + valueType)
+}
+
+function englishList (list) {
+  return list.join(', ').replace(/, ([^,]+)$/, ' or $1')
+}
+
+function wrongNumberOfArgs (expected, got) {
+  const english = englishList(expected)
+  const args = expected.every(ex => ex.length === 1)
+    ? 'argument'
+    : 'arguments'
+  return newException('EWRONGARGCOUNT', 'Expected ' + english + ' ' + args + ' but got ' + got)
+}
+
+function moreThanOneError (schema) {
+  return newException('ETOOMANYERRORTYPES',
+    'Only one error type per argument signature is allowed, more than one found in "' + schema + '"')
+}
+
+function newException (code, msg) {
+  const err = new Error(msg)
+  err.code = code
+  /* istanbul ignore else */
+  if (Error.captureStackTrace) Error.captureStackTrace(err, validate)
+  return err
+}
diff --git a/node_modules/aproba/package.json b/node_modules/aproba/package.json
new file mode 100644
index 0000000..d2212d3
--- /dev/null
+++ b/node_modules/aproba/package.json
@@ -0,0 +1,35 @@
+{
+  "name": "aproba",
+  "version": "2.0.0",
+  "description": "A ridiculously light-weight argument validator (now browser friendly)",
+  "main": "index.js",
+  "directories": {
+    "test": "test"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "standard": "^11.0.1",
+    "tap": "^12.0.1"
+  },
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "pretest": "standard",
+    "test": "tap --100 -J test/*.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/iarna/aproba"
+  },
+  "keywords": [
+    "argument",
+    "validate"
+  ],
+  "author": "Rebecca Turner <me@re-becca.org>",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/iarna/aproba/issues"
+  },
+  "homepage": "https://github.com/iarna/aproba"
+}
diff --git a/node_modules/are-we-there-yet/LICENSE.md b/node_modules/are-we-there-yet/LICENSE.md
new file mode 100644
index 0000000..845be76
--- /dev/null
+++ b/node_modules/are-we-there-yet/LICENSE.md
@@ -0,0 +1,18 @@
+ISC License
+
+Copyright npm, Inc.
+
+Permission to use, copy, modify, and/or distribute this
+software for any purpose with or without fee is hereby
+granted, provided that the above copyright notice and this
+permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND NPM DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL NPM BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
+USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/are-we-there-yet/README.md b/node_modules/are-we-there-yet/README.md
new file mode 100644
index 0000000..caae19b
--- /dev/null
+++ b/node_modules/are-we-there-yet/README.md
@@ -0,0 +1,208 @@
+are-we-there-yet
+----------------
+
+Track complex hierarchies of asynchronous task completion statuses.  This is
+intended to give you a way of recording and reporting the progress of the big
+recursive fan-out and gather type workflows that are so common in async.
+
+What you do with this completion data is up to you, but the most common use case is to
+feed it to one of the many progress bar modules.
+
+Most progress bar modules include a rudimentary version of this, but my
+needs were more complex.
+
+Usage
+=====
+
+```javascript
+var TrackerGroup = require("are-we-there-yet").TrackerGroup
+
+var top = new TrackerGroup("program")
+
+var single = top.newItem("one thing", 100)
+single.completeWork(20)
+
+console.log(top.completed()) // 0.2
+
+fs.stat("file", function(er, stat) {
+  if (er) throw er  
+  var stream = top.newStream("file", stat.size)
+  console.log(top.completed()) // now 0.1 as single is 50% of the job and is 20% complete
+                              // and 50% * 20% == 10%
+  fs.createReadStream("file").pipe(stream).on("data", function (chunk) {
+    // do stuff with chunk
+  })
+  top.on("change", function (name) {
+    // called each time a chunk is read from "file"
+    // top.completed() will start at 0.1 and fill up to 0.6 as the file is read
+  })
+})
+```
+
+Shared Methods
+==============
+
+* var completed = tracker.completed()
+
+Implemented in: `Tracker`, `TrackerGroup`, `TrackerStream`
+
+Returns the ratio of completed work to work to be done. Range of 0 to 1.
+
+* tracker.finish()
+
+Implemented in: `Tracker`, `TrackerGroup`
+
+Marks the tracker as completed. With a TrackerGroup this marks all of its
+components as completed.
+
+Marks all of the components of this tracker as finished, which in turn means
+that `tracker.completed()` for this will now be 1.
+
+This will result in one or more `change` events being emitted.
+
+Events
+======
+
+All tracker objects emit `change` events with the following arguments:
+
+```
+function (name, completed, tracker)
+```
+
+`name` is the name of the tracker that originally emitted the event,
+or if it didn't have one, the first containing tracker group that had one.
+
+`completed` is the percent complete (as returned by `tracker.completed()` method).
+
+`tracker` is the tracker object that you are listening for events on.
+
+TrackerGroup
+============
+
+* var tracker = new TrackerGroup(**name**)
+
+  * **name** *(optional)* - The name of this tracker group, used in change
+    notifications if the component updating didn't have a name. Defaults to undefined.
+
+Creates a new empty tracker aggregation group. These are trackers whose
+completion status is determined by the completion status of other trackers added to this aggregation group.
+
+Ex.
+
+```javascript
+var tracker = new TrackerGroup("parent")
+var foo = tracker.newItem("firstChild", 100)
+var bar = tracker.newItem("secondChild", 100)
+
+foo.finish()
+console.log(tracker.completed()) // 0.5
+bar.finish()
+console.log(tracker.completed()) // 1
+```
+
+* tracker.addUnit(**otherTracker**, **weight**)
+
+  * **otherTracker** - Any of the other are-we-there-yet tracker objects
+  * **weight** *(optional)* - The weight to give the tracker, defaults to 1.
+
+Adds the **otherTracker** to this aggregation group. The weight determines
+how long you expect this tracker to take to complete in proportion to other
+units.  So for instance, if you add one tracker with a weight of 1 and
+another with a weight of 2, you're saying the second will take twice as long
+to complete as the first.  As such, the first will account for 33% of the
+completion of this tracker and the second will account for the other 67%.
+
+Returns **otherTracker**.
+
+* var subGroup = tracker.newGroup(**name**, **weight**)
+
+The above is exactly equivalent to:
+
+```javascript
+  var subGroup = tracker.addUnit(new TrackerGroup(name), weight)
+```
+
+* var subItem = tracker.newItem(**name**, **todo**, **weight**)
+
+The above is exactly equivalent to:
+
+```javascript
+  var subItem = tracker.addUnit(new Tracker(name, todo), weight)
+```
+
+* var subStream = tracker.newStream(**name**, **todo**, **weight**)
+
+The above is exactly equivalent to:
+
+```javascript
+  var subStream = tracker.addUnit(new TrackerStream(name, todo), weight)
+```
+
+* console.log( tracker.debug() )
+
+Returns a tree showing the completion of this tracker group and all of its
+children, including recursively entering all of the children.
+
+Tracker
+=======
+
+* var tracker = new Tracker(**name**, **todo**)
+
+  * **name** *(optional)* The name of this counter to report in change
+    events.  Defaults to undefined.
+  * **todo** *(optional)* The amount of work todo (a number). Defaults to 0.
+
+Ordinarily these are constructed as a part of a tracker group (via
+`newItem`).
+
+* var completed = tracker.completed()
+
+Returns the ratio of completed work to work to be done. Range of 0 to 1. If
+total work to be done is 0 then it will return 0.
+
+* tracker.addWork(**todo**)
+
+  * **todo** A number to add to the amount of work to be done.
+
+Increases the amount of work to be done, thus decreasing the completion
+percentage.  Triggers a `change` event.
+
+* tracker.completeWork(**completed**)
+
+  * **completed** A number to add to the work complete
+
+Increase the amount of work complete, thus increasing the completion percentage.
+Will never increase the work completed past the amount of work todo. That is,
+percentages > 100% are not allowed. Triggers a `change` event.
+
+* tracker.finish()
+
+Marks this tracker as finished, tracker.completed() will now be 1. Triggers
+a `change` event.
+
+TrackerStream
+=============
+
+* var tracker = new TrackerStream(**name**, **size**, **options**)
+
+  * **name** *(optional)* The name of this counter to report in change
+    events.  Defaults to undefined.
+  * **size** *(optional)* The number of bytes being sent through this stream.
+  * **options** *(optional)* A hash of stream options
+
+The tracker stream object is a pass through stream that updates an internal
+tracker object each time a block passes through.  It's intended to track
+downloads, file extraction and other related activities. You use it by piping
+your data source into it and then using it as your data source.
+
+If your data has a length attribute then that's used as the amount of work
+completed when the chunk is passed through.  If it does not (eg, object
+streams) then each chunk counts as completing 1 unit of work, so your size
+should be the total number of objects being streamed.
+
+* tracker.addWork(**todo**)
+
+  * **todo** Increase the expected overall size by **todo** bytes.
+
+Increases the amount of work to be done, thus decreasing the completion
+percentage.  Triggers a `change` event.
diff --git a/node_modules/are-we-there-yet/lib/index.js b/node_modules/are-we-there-yet/lib/index.js
new file mode 100644
index 0000000..57d8743
--- /dev/null
+++ b/node_modules/are-we-there-yet/lib/index.js
@@ -0,0 +1,4 @@
+'use strict'
+exports.TrackerGroup = require('./tracker-group.js')
+exports.Tracker = require('./tracker.js')
+exports.TrackerStream = require('./tracker-stream.js')
diff --git a/node_modules/are-we-there-yet/lib/tracker-base.js b/node_modules/are-we-there-yet/lib/tracker-base.js
new file mode 100644
index 0000000..6f43687
--- /dev/null
+++ b/node_modules/are-we-there-yet/lib/tracker-base.js
@@ -0,0 +1,11 @@
+'use strict'
+var EventEmitter = require('events').EventEmitter
+var util = require('util')
+
+var trackerId = 0
+var TrackerBase = module.exports = function (name) {
+  EventEmitter.call(this)
+  this.id = ++trackerId
+  this.name = name
+}
+util.inherits(TrackerBase, EventEmitter)
diff --git a/node_modules/are-we-there-yet/lib/tracker-group.js b/node_modules/are-we-there-yet/lib/tracker-group.js
new file mode 100644
index 0000000..9da13f8
--- /dev/null
+++ b/node_modules/are-we-there-yet/lib/tracker-group.js
@@ -0,0 +1,116 @@
+'use strict'
+var util = require('util')
+var TrackerBase = require('./tracker-base.js')
+var Tracker = require('./tracker.js')
+var TrackerStream = require('./tracker-stream.js')
+
+var TrackerGroup = module.exports = function (name) {
+  TrackerBase.call(this, name)
+  this.parentGroup = null
+  this.trackers = []
+  this.completion = {}
+  this.weight = {}
+  this.totalWeight = 0
+  this.finished = false
+  this.bubbleChange = bubbleChange(this)
+}
+util.inherits(TrackerGroup, TrackerBase)
+
+function bubbleChange (trackerGroup) {
+  return function (name, completed, tracker) {
+    trackerGroup.completion[tracker.id] = completed
+    if (trackerGroup.finished) {
+      return
+    }
+    trackerGroup.emit('change', name || trackerGroup.name, trackerGroup.completed(), trackerGroup)
+  }
+}
+
+TrackerGroup.prototype.nameInTree = function () {
+  var names = []
+  var from = this
+  while (from) {
+    names.unshift(from.name)
+    from = from.parentGroup
+  }
+  return names.join('/')
+}
+
+TrackerGroup.prototype.addUnit = function (unit, weight) {
+  if (unit.addUnit) {
+    var toTest = this
+    while (toTest) {
+      if (unit === toTest) {
+        throw new Error(
+          'Attempted to add tracker group ' +
+          unit.name + ' to tree that already includes it ' +
+          this.nameInTree(this))
+      }
+      toTest = toTest.parentGroup
+    }
+    unit.parentGroup = this
+  }
+  this.weight[unit.id] = weight || 1
+  this.totalWeight += this.weight[unit.id]
+  this.trackers.push(unit)
+  this.completion[unit.id] = unit.completed()
+  unit.on('change', this.bubbleChange)
+  if (!this.finished) {
+    this.emit('change', unit.name, this.completion[unit.id], unit)
+  }
+  return unit
+}
+
+TrackerGroup.prototype.completed = function () {
+  if (this.trackers.length === 0) {
+    return 0
+  }
+  var valPerWeight = 1 / this.totalWeight
+  var completed = 0
+  for (var ii = 0; ii < this.trackers.length; ii++) {
+    var trackerId = this.trackers[ii].id
+    completed +=
+      valPerWeight * this.weight[trackerId] * this.completion[trackerId]
+  }
+  return completed
+}
+
+TrackerGroup.prototype.newGroup = function (name, weight) {
+  return this.addUnit(new TrackerGroup(name), weight)
+}
+
+TrackerGroup.prototype.newItem = function (name, todo, weight) {
+  return this.addUnit(new Tracker(name, todo), weight)
+}
+
+TrackerGroup.prototype.newStream = function (name, todo, weight) {
+  return this.addUnit(new TrackerStream(name, todo), weight)
+}
+
+TrackerGroup.prototype.finish = function () {
+  this.finished = true
+  if (!this.trackers.length) {
+    this.addUnit(new Tracker(), 1, true)
+  }
+  for (var ii = 0; ii < this.trackers.length; ii++) {
+    var tracker = this.trackers[ii]
+    tracker.finish()
+    tracker.removeListener('change', this.bubbleChange)
+  }
+  this.emit('change', this.name, 1, this)
+}
+
+var buffer = '                                  '
+TrackerGroup.prototype.debug = function (depth) {
+  depth = depth || 0
+  var indent = depth ? buffer.substr(0, depth) : ''
+  var output = indent + (this.name || 'top') + ': ' + this.completed() + '\n'
+  this.trackers.forEach(function (tracker) {
+    if (tracker instanceof TrackerGroup) {
+      output += tracker.debug(depth + 1)
+    } else {
+      output += indent + ' ' + tracker.name + ': ' + tracker.completed() + '\n'
+    }
+  })
+  return output
+}
diff --git a/node_modules/are-we-there-yet/lib/tracker-stream.js b/node_modules/are-we-there-yet/lib/tracker-stream.js
new file mode 100644
index 0000000..e1cf850
--- /dev/null
+++ b/node_modules/are-we-there-yet/lib/tracker-stream.js
@@ -0,0 +1,36 @@
+'use strict'
+var util = require('util')
+var stream = require('readable-stream')
+var delegate = require('delegates')
+var Tracker = require('./tracker.js')
+
+var TrackerStream = module.exports = function (name, size, options) {
+  stream.Transform.call(this, options)
+  this.tracker = new Tracker(name, size)
+  this.name = name
+  this.id = this.tracker.id
+  this.tracker.on('change', delegateChange(this))
+}
+util.inherits(TrackerStream, stream.Transform)
+
+function delegateChange (trackerStream) {
+  return function (name, completion, tracker) {
+    trackerStream.emit('change', name, completion, trackerStream)
+  }
+}
+
+TrackerStream.prototype._transform = function (data, encoding, cb) {
+  this.tracker.completeWork(data.length ? data.length : 1)
+  this.push(data)
+  cb()
+}
+
+TrackerStream.prototype._flush = function (cb) {
+  this.tracker.finish()
+  cb()
+}
+
+delegate(TrackerStream.prototype, 'tracker')
+  .method('completed')
+  .method('addWork')
+  .method('finish')
diff --git a/node_modules/are-we-there-yet/lib/tracker.js b/node_modules/are-we-there-yet/lib/tracker.js
new file mode 100644
index 0000000..a8f8b3b
--- /dev/null
+++ b/node_modules/are-we-there-yet/lib/tracker.js
@@ -0,0 +1,32 @@
+'use strict'
+var util = require('util')
+var TrackerBase = require('./tracker-base.js')
+
+var Tracker = module.exports = function (name, todo) {
+  TrackerBase.call(this, name)
+  this.workDone = 0
+  this.workTodo = todo || 0
+}
+util.inherits(Tracker, TrackerBase)
+
+Tracker.prototype.completed = function () {
+  return this.workTodo === 0 ? 0 : this.workDone / this.workTodo
+}
+
+Tracker.prototype.addWork = function (work) {
+  this.workTodo += work
+  this.emit('change', this.name, this.completed(), this)
+}
+
+Tracker.prototype.completeWork = function (work) {
+  this.workDone += work
+  if (this.workDone > this.workTodo) {
+    this.workDone = this.workTodo
+  }
+  this.emit('change', this.name, this.completed(), this)
+}
+
+Tracker.prototype.finish = function () {
+  this.workTodo = this.workDone = 1
+  this.emit('change', this.name, 1, this)
+}
diff --git a/node_modules/are-we-there-yet/package.json b/node_modules/are-we-there-yet/package.json
new file mode 100644
index 0000000..5714e09
--- /dev/null
+++ b/node_modules/are-we-there-yet/package.json
@@ -0,0 +1,53 @@
+{
+  "name": "are-we-there-yet",
+  "version": "2.0.0",
+  "description": "Keep track of the overall completion of many disparate processes",
+  "main": "lib/index.js",
+  "scripts": {
+    "test": "tap",
+    "npmclilint": "npmcli-lint",
+    "lint": "eslint '**/*.js'",
+    "lintfix": "npm run lint -- --fix",
+    "posttest": "npm run lint",
+    "postsnap": "npm run lintfix --",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags",
+    "snap": "tap"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/are-we-there-yet.git"
+  },
+  "author": "GitHub Inc.",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/npm/are-we-there-yet/issues"
+  },
+  "homepage": "https://github.com/npm/are-we-there-yet",
+  "devDependencies": {
+    "@npmcli/eslint-config": "^1.0.0",
+    "@npmcli/template-oss": "^1.0.2",
+    "eslint": "^7.32.0",
+    "eslint-plugin-node": "^11.1.0",
+    "tap": "^15.0.9"
+  },
+  "dependencies": {
+    "delegates": "^1.0.0",
+    "readable-stream": "^3.6.0"
+  },
+  "files": [
+    "bin",
+    "lib"
+  ],
+  "engines": {
+    "node": ">=10"
+  },
+  "tap": {
+    "branches": 68,
+    "statements": 92,
+    "functions": 86,
+    "lines": 92
+  },
+  "templateVersion": "1.0.2"
+}
diff --git a/node_modules/balanced-match/.github/FUNDING.yml b/node_modules/balanced-match/.github/FUNDING.yml
new file mode 100644
index 0000000..cea8b16
--- /dev/null
+++ b/node_modules/balanced-match/.github/FUNDING.yml
@@ -0,0 +1,2 @@
+tidelift: "npm/balanced-match"
+patreon: juliangruber
diff --git a/node_modules/balanced-match/LICENSE.md b/node_modules/balanced-match/LICENSE.md
new file mode 100644
index 0000000..2cdc8e4
--- /dev/null
+++ b/node_modules/balanced-match/LICENSE.md
@@ -0,0 +1,21 @@
+(MIT)
+
+Copyright (c) 2013 Julian Gruber &lt;julian@juliangruber.com&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/node_modules/balanced-match/README.md b/node_modules/balanced-match/README.md
new file mode 100644
index 0000000..d2a48b6
--- /dev/null
+++ b/node_modules/balanced-match/README.md
@@ -0,0 +1,97 @@
+# balanced-match
+
+Match balanced string pairs, like `{` and `}` or `<b>` and `</b>`. Supports regular expressions as well!
+
+[![build status](https://secure.travis-ci.org/juliangruber/balanced-match.svg)](http://travis-ci.org/juliangruber/balanced-match)
+[![downloads](https://img.shields.io/npm/dm/balanced-match.svg)](https://www.npmjs.org/package/balanced-match)
+
+[![testling badge](https://ci.testling.com/juliangruber/balanced-match.png)](https://ci.testling.com/juliangruber/balanced-match)
+
+## Example
+
+Get the first matching pair of braces:
+
+```js
+var balanced = require('balanced-match');
+
+console.log(balanced('{', '}', 'pre{in{nested}}post'));
+console.log(balanced('{', '}', 'pre{first}between{second}post'));
+console.log(balanced(/\s+\{\s+/, /\s+\}\s+/, 'pre  {   in{nest}   }  post'));
+```
+
+The matches are:
+
+```bash
+$ node example.js
+{ start: 3, end: 14, pre: 'pre', body: 'in{nested}', post: 'post' }
+{ start: 3,
+  end: 9,
+  pre: 'pre',
+  body: 'first',
+  post: 'between{second}post' }
+{ start: 3, end: 17, pre: 'pre', body: 'in{nest}', post: 'post' }
+```
+
+## API
+
+### var m = balanced(a, b, str)
+
+For the first non-nested matching pair of `a` and `b` in `str`, return an
+object with those keys:
+
+* **start** the index of the first match of `a`
+* **end** the index of the matching `b`
+* **pre** the preamble, `a` and `b` not included
+* **body** the match, `a` and `b` not included
+* **post** the postscript, `a` and `b` not included
+
+If there's no match, `undefined` will be returned.
+
+If the `str` contains more `a` than `b` / there are unmatched pairs, the first match that was closed will be used. For example, `{{a}` will match `['{', 'a', '']` and `{a}}` will match `['', 'a', '}']`.
+
+### var r = balanced.range(a, b, str)
+
+For the first non-nested matching pair of `a` and `b` in `str`, return an
+array with indexes: `[ <a index>, <b index> ]`.
+
+If there's no match, `undefined` will be returned.
+
+If the `str` contains more `a` than `b` / there are unmatched pairs, the first match that was closed will be used. For example, `{{a}` will match `[ 1, 3 ]` and `{a}}` will match `[0, 2]`.
+
+## Installation
+
+With [npm](https://npmjs.org) do:
+
+```bash
+npm install balanced-match
+```
+
+## Security contact information
+
+To report a security vulnerability, please use the
+[Tidelift security contact](https://tidelift.com/security).
+Tidelift will coordinate the fix and disclosure.
+
+## License
+
+(MIT)
+
+Copyright (c) 2013 Julian Gruber &lt;julian@juliangruber.com&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/node_modules/balanced-match/index.js b/node_modules/balanced-match/index.js
new file mode 100644
index 0000000..c67a646
--- /dev/null
+++ b/node_modules/balanced-match/index.js
@@ -0,0 +1,62 @@
+'use strict';
+module.exports = balanced;
+function balanced(a, b, str) {
+  if (a instanceof RegExp) a = maybeMatch(a, str);
+  if (b instanceof RegExp) b = maybeMatch(b, str);
+
+  var r = range(a, b, str);
+
+  return r && {
+    start: r[0],
+    end: r[1],
+    pre: str.slice(0, r[0]),
+    body: str.slice(r[0] + a.length, r[1]),
+    post: str.slice(r[1] + b.length)
+  };
+}
+
+function maybeMatch(reg, str) {
+  var m = str.match(reg);
+  return m ? m[0] : null;
+}
+
+balanced.range = range;
+function range(a, b, str) {
+  var begs, beg, left, right, result;
+  var ai = str.indexOf(a);
+  var bi = str.indexOf(b, ai + 1);
+  var i = ai;
+
+  if (ai >= 0 && bi > 0) {
+    if(a===b) {
+      return [ai, bi];
+    }
+    begs = [];
+    left = str.length;
+
+    while (i >= 0 && !result) {
+      if (i == ai) {
+        begs.push(i);
+        ai = str.indexOf(a, i + 1);
+      } else if (begs.length == 1) {
+        result = [ begs.pop(), bi ];
+      } else {
+        beg = begs.pop();
+        if (beg < left) {
+          left = beg;
+          right = bi;
+        }
+
+        bi = str.indexOf(b, i + 1);
+      }
+
+      i = ai < bi && ai >= 0 ? ai : bi;
+    }
+
+    if (begs.length) {
+      result = [ left, right ];
+    }
+  }
+
+  return result;
+}
diff --git a/node_modules/balanced-match/package.json b/node_modules/balanced-match/package.json
new file mode 100644
index 0000000..ce6073e
--- /dev/null
+++ b/node_modules/balanced-match/package.json
@@ -0,0 +1,48 @@
+{
+  "name": "balanced-match",
+  "description": "Match balanced character pairs, like \"{\" and \"}\"",
+  "version": "1.0.2",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/juliangruber/balanced-match.git"
+  },
+  "homepage": "https://github.com/juliangruber/balanced-match",
+  "main": "index.js",
+  "scripts": {
+    "test": "tape test/test.js",
+    "bench": "matcha test/bench.js"
+  },
+  "devDependencies": {
+    "matcha": "^0.7.0",
+    "tape": "^4.6.0"
+  },
+  "keywords": [
+    "match",
+    "regexp",
+    "test",
+    "balanced",
+    "parse"
+  ],
+  "author": {
+    "name": "Julian Gruber",
+    "email": "mail@juliangruber.com",
+    "url": "http://juliangruber.com"
+  },
+  "license": "MIT",
+  "testling": {
+    "files": "test/*.js",
+    "browsers": [
+      "ie/8..latest",
+      "firefox/20..latest",
+      "firefox/nightly",
+      "chrome/25..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest",
+      "android-browser/4.2..latest"
+    ]
+  }
+}
diff --git a/node_modules/brace-expansion/LICENSE b/node_modules/brace-expansion/LICENSE
new file mode 100644
index 0000000..de32266
--- /dev/null
+++ b/node_modules/brace-expansion/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013 Julian Gruber <julian@juliangruber.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/node_modules/brace-expansion/README.md b/node_modules/brace-expansion/README.md
new file mode 100644
index 0000000..6b4e0e1
--- /dev/null
+++ b/node_modules/brace-expansion/README.md
@@ -0,0 +1,129 @@
+# brace-expansion
+
+[Brace expansion](https://www.gnu.org/software/bash/manual/html_node/Brace-Expansion.html), 
+as known from sh/bash, in JavaScript.
+
+[![build status](https://secure.travis-ci.org/juliangruber/brace-expansion.svg)](http://travis-ci.org/juliangruber/brace-expansion)
+[![downloads](https://img.shields.io/npm/dm/brace-expansion.svg)](https://www.npmjs.org/package/brace-expansion)
+[![Greenkeeper badge](https://badges.greenkeeper.io/juliangruber/brace-expansion.svg)](https://greenkeeper.io/)
+
+[![testling badge](https://ci.testling.com/juliangruber/brace-expansion.png)](https://ci.testling.com/juliangruber/brace-expansion)
+
+## Example
+
+```js
+var expand = require('brace-expansion');
+
+expand('file-{a,b,c}.jpg')
+// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']
+
+expand('-v{,,}')
+// => ['-v', '-v', '-v']
+
+expand('file{0..2}.jpg')
+// => ['file0.jpg', 'file1.jpg', 'file2.jpg']
+
+expand('file-{a..c}.jpg')
+// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']
+
+expand('file{2..0}.jpg')
+// => ['file2.jpg', 'file1.jpg', 'file0.jpg']
+
+expand('file{0..4..2}.jpg')
+// => ['file0.jpg', 'file2.jpg', 'file4.jpg']
+
+expand('file-{a..e..2}.jpg')
+// => ['file-a.jpg', 'file-c.jpg', 'file-e.jpg']
+
+expand('file{00..10..5}.jpg')
+// => ['file00.jpg', 'file05.jpg', 'file10.jpg']
+
+expand('{{A..C},{a..c}}')
+// => ['A', 'B', 'C', 'a', 'b', 'c']
+
+expand('ppp{,config,oe{,conf}}')
+// => ['ppp', 'pppconfig', 'pppoe', 'pppoeconf']
+```
+
+## API
+
+```js
+var expand = require('brace-expansion');
+```
+
+### var expanded = expand(str)
+
+Return an array of all possible and valid expansions of `str`. If none are
+found, `[str]` is returned.
+
+Valid expansions are:
+
+```js
+/^(.*,)+(.+)?$/
+// {a,b,...}
+```
+
+A comma separated list of options, like `{a,b}` or `{a,{b,c}}` or `{,a,}`.
+
+```js
+/^-?\d+\.\.-?\d+(\.\.-?\d+)?$/
+// {x..y[..incr]}
+```
+
+A numeric sequence from `x` to `y` inclusive, with optional increment.
+If `x` or `y` start with a leading `0`, all the numbers will be padded
+to have equal length. Negative numbers and backwards iteration work too.
+
+```js
+/^-?\d+\.\.-?\d+(\.\.-?\d+)?$/
+// {x..y[..incr]}
+```
+
+An alphabetic sequence from `x` to `y` inclusive, with optional increment.
+`x` and `y` must be exactly one character, and if given, `incr` must be a
+number.
+
+For compatibility reasons, the string `${` is not eligible for brace expansion.
+
+## Installation
+
+With [npm](https://npmjs.org) do:
+
+```bash
+npm install brace-expansion
+```
+
+## Contributors
+
+- [Julian Gruber](https://github.com/juliangruber)
+- [Isaac Z. Schlueter](https://github.com/isaacs)
+
+## Sponsors
+
+This module is proudly supported by my [Sponsors](https://github.com/juliangruber/sponsors)!
+
+Do you want to support modules like this to improve their quality, stability and weigh in on new features? Then please consider donating to my [Patreon](https://www.patreon.com/juliangruber). Not sure how much of my modules you're using? Try [feross/thanks](https://github.com/feross/thanks)!
+
+## License
+
+(MIT)
+
+Copyright (c) 2013 Julian Gruber &lt;julian@juliangruber.com&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/node_modules/brace-expansion/index.js b/node_modules/brace-expansion/index.js
new file mode 100644
index 0000000..0478be8
--- /dev/null
+++ b/node_modules/brace-expansion/index.js
@@ -0,0 +1,201 @@
+var concatMap = require('concat-map');
+var balanced = require('balanced-match');
+
+module.exports = expandTop;
+
+var escSlash = '\0SLASH'+Math.random()+'\0';
+var escOpen = '\0OPEN'+Math.random()+'\0';
+var escClose = '\0CLOSE'+Math.random()+'\0';
+var escComma = '\0COMMA'+Math.random()+'\0';
+var escPeriod = '\0PERIOD'+Math.random()+'\0';
+
+function numeric(str) {
+  return parseInt(str, 10) == str
+    ? parseInt(str, 10)
+    : str.charCodeAt(0);
+}
+
+function escapeBraces(str) {
+  return str.split('\\\\').join(escSlash)
+            .split('\\{').join(escOpen)
+            .split('\\}').join(escClose)
+            .split('\\,').join(escComma)
+            .split('\\.').join(escPeriod);
+}
+
+function unescapeBraces(str) {
+  return str.split(escSlash).join('\\')
+            .split(escOpen).join('{')
+            .split(escClose).join('}')
+            .split(escComma).join(',')
+            .split(escPeriod).join('.');
+}
+
+
+// Basically just str.split(","), but handling cases
+// where we have nested braced sections, which should be
+// treated as individual members, like {a,{b,c},d}
+function parseCommaParts(str) {
+  if (!str)
+    return [''];
+
+  var parts = [];
+  var m = balanced('{', '}', str);
+
+  if (!m)
+    return str.split(',');
+
+  var pre = m.pre;
+  var body = m.body;
+  var post = m.post;
+  var p = pre.split(',');
+
+  p[p.length-1] += '{' + body + '}';
+  var postParts = parseCommaParts(post);
+  if (post.length) {
+    p[p.length-1] += postParts.shift();
+    p.push.apply(p, postParts);
+  }
+
+  parts.push.apply(parts, p);
+
+  return parts;
+}
+
+function expandTop(str) {
+  if (!str)
+    return [];
+
+  // I don't know why Bash 4.3 does this, but it does.
+  // Anything starting with {} will have the first two bytes preserved
+  // but *only* at the top level, so {},a}b will not expand to anything,
+  // but a{},b}c will be expanded to [a}c,abc].
+  // One could argue that this is a bug in Bash, but since the goal of
+  // this module is to match Bash's rules, we escape a leading {}
+  if (str.substr(0, 2) === '{}') {
+    str = '\\{\\}' + str.substr(2);
+  }
+
+  return expand(escapeBraces(str), true).map(unescapeBraces);
+}
+
+function identity(e) {
+  return e;
+}
+
+function embrace(str) {
+  return '{' + str + '}';
+}
+function isPadded(el) {
+  return /^-?0\d/.test(el);
+}
+
+function lte(i, y) {
+  return i <= y;
+}
+function gte(i, y) {
+  return i >= y;
+}
+
+function expand(str, isTop) {
+  var expansions = [];
+
+  var m = balanced('{', '}', str);
+  if (!m || /\$$/.test(m.pre)) return [str];
+
+  var isNumericSequence = /^-?\d+\.\.-?\d+(?:\.\.-?\d+)?$/.test(m.body);
+  var isAlphaSequence = /^[a-zA-Z]\.\.[a-zA-Z](?:\.\.-?\d+)?$/.test(m.body);
+  var isSequence = isNumericSequence || isAlphaSequence;
+  var isOptions = m.body.indexOf(',') >= 0;
+  if (!isSequence && !isOptions) {
+    // {a},b}
+    if (m.post.match(/,.*\}/)) {
+      str = m.pre + '{' + m.body + escClose + m.post;
+      return expand(str);
+    }
+    return [str];
+  }
+
+  var n;
+  if (isSequence) {
+    n = m.body.split(/\.\./);
+  } else {
+    n = parseCommaParts(m.body);
+    if (n.length === 1) {
+      // x{{a,b}}y ==> x{a}y x{b}y
+      n = expand(n[0], false).map(embrace);
+      if (n.length === 1) {
+        var post = m.post.length
+          ? expand(m.post, false)
+          : [''];
+        return post.map(function(p) {
+          return m.pre + n[0] + p;
+        });
+      }
+    }
+  }
+
+  // at this point, n is the parts, and we know it's not a comma set
+  // with a single entry.
+
+  // no need to expand pre, since it is guaranteed to be free of brace-sets
+  var pre = m.pre;
+  var post = m.post.length
+    ? expand(m.post, false)
+    : [''];
+
+  var N;
+
+  if (isSequence) {
+    var x = numeric(n[0]);
+    var y = numeric(n[1]);
+    var width = Math.max(n[0].length, n[1].length)
+    var incr = n.length == 3
+      ? Math.abs(numeric(n[2]))
+      : 1;
+    var test = lte;
+    var reverse = y < x;
+    if (reverse) {
+      incr *= -1;
+      test = gte;
+    }
+    var pad = n.some(isPadded);
+
+    N = [];
+
+    for (var i = x; test(i, y); i += incr) {
+      var c;
+      if (isAlphaSequence) {
+        c = String.fromCharCode(i);
+        if (c === '\\')
+          c = '';
+      } else {
+        c = String(i);
+        if (pad) {
+          var need = width - c.length;
+          if (need > 0) {
+            var z = new Array(need + 1).join('0');
+            if (i < 0)
+              c = '-' + z + c.slice(1);
+            else
+              c = z + c;
+          }
+        }
+      }
+      N.push(c);
+    }
+  } else {
+    N = concatMap(n, function(el) { return expand(el, false) });
+  }
+
+  for (var j = 0; j < N.length; j++) {
+    for (var k = 0; k < post.length; k++) {
+      var expansion = pre + N[j] + post[k];
+      if (!isTop || isSequence || expansion)
+        expansions.push(expansion);
+    }
+  }
+
+  return expansions;
+}
+
diff --git a/node_modules/brace-expansion/package.json b/node_modules/brace-expansion/package.json
new file mode 100644
index 0000000..a18faa8
--- /dev/null
+++ b/node_modules/brace-expansion/package.json
@@ -0,0 +1,47 @@
+{
+  "name": "brace-expansion",
+  "description": "Brace expansion as known from sh/bash",
+  "version": "1.1.11",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/juliangruber/brace-expansion.git"
+  },
+  "homepage": "https://github.com/juliangruber/brace-expansion",
+  "main": "index.js",
+  "scripts": {
+    "test": "tape test/*.js",
+    "gentest": "bash test/generate.sh",
+    "bench": "matcha test/perf/bench.js"
+  },
+  "dependencies": {
+    "balanced-match": "^1.0.0",
+    "concat-map": "0.0.1"
+  },
+  "devDependencies": {
+    "matcha": "^0.7.0",
+    "tape": "^4.6.0"
+  },
+  "keywords": [],
+  "author": {
+    "name": "Julian Gruber",
+    "email": "mail@juliangruber.com",
+    "url": "http://juliangruber.com"
+  },
+  "license": "MIT",
+  "testling": {
+    "files": "test/*.js",
+    "browsers": [
+      "ie/8..latest",
+      "firefox/20..latest",
+      "firefox/nightly",
+      "chrome/25..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest",
+      "android-browser/4.2..latest"
+    ]
+  }
+}
diff --git a/node_modules/cacache/LICENSE.md b/node_modules/cacache/LICENSE.md
new file mode 100644
index 0000000..8d28acf
--- /dev/null
+++ b/node_modules/cacache/LICENSE.md
@@ -0,0 +1,16 @@
+ISC License
+
+Copyright (c) npm, Inc.
+
+Permission to use, copy, modify, and/or distribute this software for
+any purpose with or without fee is hereby granted, provided that the
+above copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE COPYRIGHT HOLDER DISCLAIMS
+ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
+USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/cacache/README.md b/node_modules/cacache/README.md
new file mode 100644
index 0000000..6dc11ba
--- /dev/null
+++ b/node_modules/cacache/README.md
@@ -0,0 +1,703 @@
+# cacache [![npm version](https://img.shields.io/npm/v/cacache.svg)](https://npm.im/cacache) [![license](https://img.shields.io/npm/l/cacache.svg)](https://npm.im/cacache) [![Travis](https://img.shields.io/travis/npm/cacache.svg)](https://travis-ci.org/npm/cacache) [![AppVeyor](https://ci.appveyor.com/api/projects/status/github/npm/cacache?svg=true)](https://ci.appveyor.com/project/npm/cacache) [![Coverage Status](https://coveralls.io/repos/github/npm/cacache/badge.svg?branch=latest)](https://coveralls.io/github/npm/cacache?branch=latest)
+
+[`cacache`](https://github.com/npm/cacache) is a Node.js library for managing
+local key and content address caches. It's really fast, really good at
+concurrency, and it will never give you corrupted data, even if cache files
+get corrupted or manipulated.
+
+On systems that support user and group settings on files, cacache will
+match the `uid` and `gid` values to the folder where the cache lives, even
+when running as `root`.
+
+It was written to be used as [npm](https://npm.im)'s local cache, but can
+just as easily be used on its own.
+
+## Install
+
+`$ npm install --save cacache`
+
+## Table of Contents
+
+* [Example](#example)
+* [Features](#features)
+* [Contributing](#contributing)
+* [API](#api)
+  * [Using localized APIs](#localized-api)
+  * Reading
+    * [`ls`](#ls)
+    * [`ls.stream`](#ls-stream)
+    * [`get`](#get-data)
+    * [`get.stream`](#get-stream)
+    * [`get.info`](#get-info)
+    * [`get.hasContent`](#get-hasContent)
+  * Writing
+    * [`put`](#put-data)
+    * [`put.stream`](#put-stream)
+    * [`rm.all`](#rm-all)
+    * [`rm.entry`](#rm-entry)
+    * [`rm.content`](#rm-content)
+    * [`index.compact`](#index-compact)
+    * [`index.insert`](#index-insert)
+  * Utilities
+    * [`clearMemoized`](#clear-memoized)
+    * [`tmp.mkdir`](#tmp-mkdir)
+    * [`tmp.withTmp`](#with-tmp)
+  * Integrity
+    * [Subresource Integrity](#integrity)
+    * [`verify`](#verify)
+    * [`verify.lastRun`](#verify-last-run)
+
+### Example
+
+```javascript
+const cacache = require('cacache')
+const fs = require('fs')
+
+const tarball = '/path/to/mytar.tgz'
+const cachePath = '/tmp/my-toy-cache'
+const key = 'my-unique-key-1234'
+
+// Cache it! Use `cachePath` as the root of the content cache
+cacache.put(cachePath, key, '10293801983029384').then(integrity => {
+  console.log(`Saved content to ${cachePath}.`)
+})
+
+const destination = '/tmp/mytar.tgz'
+
+// Copy the contents out of the cache and into their destination!
+// But this time, use stream instead!
+cacache.get.stream(
+  cachePath, key
+).pipe(
+  fs.createWriteStream(destination)
+).on('finish', () => {
+  console.log('done extracting!')
+})
+
+// The same thing, but skip the key index.
+cacache.get.byDigest(cachePath, integrityHash).then(data => {
+  fs.writeFile(destination, data, err => {
+    console.log('tarball data fetched based on its sha512sum and written out!')
+  })
+})
+```
+
+### Features
+
+* Extraction by key or by content address (shasum, etc)
+* [Subresource Integrity](#integrity) web standard support
+* Multi-hash support - safely host sha1, sha512, etc, in a single cache
+* Automatic content deduplication
+* Fault tolerance (immune to corruption, partial writes, process races, etc)
+* Consistency guarantees on read and write (full data verification)
+* Lockless, high-concurrency cache access
+* Streaming support
+* Promise support
+* Fast -- sub-millisecond reads and writes including verification
+* Arbitrary metadata storage
+* Garbage collection and additional offline verification
+* Thorough test coverage
+* There's probably a bloom filter in there somewhere. Those are cool, right? 🤔
+
+### Contributing
+
+The cacache team enthusiastically welcomes contributions and project participation! There's a bunch of things you can do if you want to contribute! The [Contributor Guide](CONTRIBUTING.md) has all the information you need for everything from reporting bugs to contributing entire new features. Please don't hesitate to jump in if you'd like to, or even ask us questions if something isn't clear.
+
+All participants and maintainers in this project are expected to follow [Code of Conduct](CODE_OF_CONDUCT.md), and just generally be excellent to each other.
+
+Please refer to the [Changelog](CHANGELOG.md) for project history details, too.
+
+Happy hacking!
+
+### API
+
+#### <a name="ls"></a> `> cacache.ls(cache) -> Promise<Object>`
+
+Lists info for all entries currently in the cache as a single large object. Each
+entry in the object will be keyed by the unique index key, with corresponding
+[`get.info`](#get-info) objects as the values.
+
+##### Example
+
+```javascript
+cacache.ls(cachePath).then(console.log)
+// Output
+{
+  'my-thing': {
+    key: 'my-thing',
+    integrity: 'sha512-BaSe64/EnCoDED+HAsh=='
+    path: '.testcache/content/deadbeef', // joined with `cachePath`
+    time: 12345698490,
+    size: 4023948,
+    metadata: {
+      name: 'blah',
+      version: '1.2.3',
+      description: 'this was once a package but now it is my-thing'
+    }
+  },
+  'other-thing': {
+    key: 'other-thing',
+    integrity: 'sha1-ANothER+hasH=',
+    path: '.testcache/content/bada55',
+    time: 11992309289,
+    size: 111112
+  }
+}
+```
+
+#### <a name="ls-stream"></a> `> cacache.ls.stream(cache) -> Readable`
+
+Lists info for all entries currently in the cache as a single large object.
+
+This works just like [`ls`](#ls), except [`get.info`](#get-info) entries are
+returned as `'data'` events on the returned stream.
+
+##### Example
+
+```javascript
+cacache.ls.stream(cachePath).on('data', console.log)
+// Output
+{
+  key: 'my-thing',
+  integrity: 'sha512-BaSe64HaSh',
+  path: '.testcache/content/deadbeef', // joined with `cachePath`
+  time: 12345698490,
+  size: 13423,
+  metadata: {
+    name: 'blah',
+    version: '1.2.3',
+    description: 'this was once a package but now it is my-thing'
+  }
+}
+
+{
+  key: 'other-thing',
+  integrity: 'whirlpool-WoWSoMuchSupport',
+  path: '.testcache/content/bada55',
+  time: 11992309289,
+  size: 498023984029
+}
+
+{
+  ...
+}
+```
+
+#### <a name="get-data"></a> `> cacache.get(cache, key, [opts]) -> Promise({data, metadata, integrity})`
+
+Returns an object with the cached data, digest, and metadata identified by
+`key`. The `data` property of this object will be a `Buffer` instance that
+presumably holds some data that means something to you. I'm sure you know what
+to do with it! cacache just won't care.
+
+`integrity` is a [Subresource
+Integrity](#integrity)
+string. That is, a string that can be used to verify `data`, which looks like
+`<hash-algorithm>-<base64-integrity-hash>`.
+
+If there is no content identified by `key`, or if the locally-stored data does
+not pass the validity checksum, the promise will be rejected.
+
+A sub-function, `get.byDigest` may be used for identical behavior, except lookup
+will happen by integrity hash, bypassing the index entirely. This version of the
+function *only* returns `data` itself, without any wrapper.
+
+See: [options](#get-options)
+
+##### Note
+
+This function loads the entire cache entry into memory before returning it. If
+you're dealing with Very Large data, consider using [`get.stream`](#get-stream)
+instead.
+
+##### Example
+
+```javascript
+// Look up by key
+cache.get(cachePath, 'my-thing').then(console.log)
+// Output:
+{
+  metadata: {
+    thingName: 'my'
+  },
+  integrity: 'sha512-BaSe64HaSh',
+  data: Buffer#<deadbeef>,
+  size: 9320
+}
+
+// Look up by digest
+cache.get.byDigest(cachePath, 'sha512-BaSe64HaSh').then(console.log)
+// Output:
+Buffer#<deadbeef>
+```
+
+#### <a name="get-stream"></a> `> cacache.get.stream(cache, key, [opts]) -> Readable`
+
+Returns a [Readable Stream](https://nodejs.org/api/stream.html#stream_readable_streams) of the cached data identified by `key`.
+
+If there is no content identified by `key`, or if the locally-stored data does
+not pass the validity checksum, an error will be emitted.
+
+`metadata` and `integrity` events will be emitted before the stream closes, if
+you need to collect that extra data about the cached entry.
+
+A sub-function, `get.stream.byDigest` may be used for identical behavior,
+except lookup will happen by integrity hash, bypassing the index entirely. This
+version does not emit the `metadata` and `integrity` events at all.
+
+See: [options](#get-options)
+
+##### Example
+
+```javascript
+// Look up by key
+cache.get.stream(
+  cachePath, 'my-thing'
+).on('metadata', metadata => {
+  console.log('metadata:', metadata)
+}).on('integrity', integrity => {
+  console.log('integrity:', integrity)
+}).pipe(
+  fs.createWriteStream('./x.tgz')
+)
+// Outputs:
+metadata: { ... }
+integrity: 'sha512-SoMeDIGest+64=='
+
+// Look up by digest
+cache.get.stream.byDigest(
+  cachePath, 'sha512-SoMeDIGest+64=='
+).pipe(
+  fs.createWriteStream('./x.tgz')
+)
+```
+
+#### <a name="get-info"></a> `> cacache.get.info(cache, key) -> Promise`
+
+Looks up `key` in the cache index, returning information about the entry if
+one exists.
+
+##### Fields
+
+* `key` - Key the entry was looked up under. Matches the `key` argument.
+* `integrity` - [Subresource Integrity hash](#integrity) for the content this entry refers to.
+* `path` - Filesystem path where content is stored, joined with `cache` argument.
+* `time` - Timestamp the entry was first added on.
+* `metadata` - User-assigned metadata associated with the entry/content.
+
+##### Example
+
+```javascript
+cacache.get.info(cachePath, 'my-thing').then(console.log)
+
+// Output
+{
+  key: 'my-thing',
+  integrity: 'sha256-MUSTVERIFY+ALL/THINGS=='
+  path: '.testcache/content/deadbeef',
+  time: 12345698490,
+  size: 849234,
+  metadata: {
+    name: 'blah',
+    version: '1.2.3',
+    description: 'this was once a package but now it is my-thing'
+  }
+}
+```
+
+#### <a name="get-hasContent"></a> `> cacache.get.hasContent(cache, integrity) -> Promise`
+
+Looks up a [Subresource Integrity hash](#integrity) in the cache. If content
+exists for this `integrity`, it will return an object, with the specific single integrity hash
+that was found in `sri` key, and the size of the found content as `size`. If no content exists for this integrity, it will return `false`.
+
+##### Example
+
+```javascript
+cacache.get.hasContent(cachePath, 'sha256-MUSTVERIFY+ALL/THINGS==').then(console.log)
+
+// Output
+{
+  sri: {
+    source: 'sha256-MUSTVERIFY+ALL/THINGS==',
+    algorithm: 'sha256',
+    digest: 'MUSTVERIFY+ALL/THINGS==',
+    options: []
+  },
+  size: 9001
+}
+
+cacache.get.hasContent(cachePath, 'sha521-NOT+IN/CACHE==').then(console.log)
+
+// Output
+false
+```
+
+##### <a name="get-options"></a> Options
+
+##### `opts.integrity`
+If present, the pre-calculated digest for the inserted content. If this option
+is provided and does not match the post-insertion digest, insertion will fail
+with an `EINTEGRITY` error.
+
+##### `opts.memoize`
+
+Default: null
+
+If explicitly truthy, cacache will read from memory and memoize data on bulk read. If `false`, cacache will read from disk data. Reader functions by default read from in-memory cache.
+
+##### `opts.size`
+If provided, the data stream will be verified to check that enough data was
+passed through. If there's more or less data than expected, insertion will fail
+with an `EBADSIZE` error.
+
+
+#### <a name="put-data"></a> `> cacache.put(cache, key, data, [opts]) -> Promise`
+
+Inserts data passed to it into the cache. The returned Promise resolves with a
+digest (generated according to [`opts.algorithms`](#optsalgorithms)) after the
+cache entry has been successfully written.
+
+See: [options](#put-options)
+
+##### Example
+
+```javascript
+fetch(
+  'https://registry.npmjs.org/cacache/-/cacache-1.0.0.tgz'
+).then(data => {
+  return cacache.put(cachePath, 'registry.npmjs.org|cacache@1.0.0', data)
+}).then(integrity => {
+  console.log('integrity hash is', integrity)
+})
+```
+
+#### <a name="put-stream"></a> `> cacache.put.stream(cache, key, [opts]) -> Writable`
+
+Returns a [Writable
+Stream](https://nodejs.org/api/stream.html#stream_writable_streams) that inserts
+data written to it into the cache. Emits an `integrity` event with the digest of
+written contents when it succeeds.
+
+See: [options](#put-options)
+
+##### Example
+
+```javascript
+request.get(
+  'https://registry.npmjs.org/cacache/-/cacache-1.0.0.tgz'
+).pipe(
+  cacache.put.stream(
+    cachePath, 'registry.npmjs.org|cacache@1.0.0'
+  ).on('integrity', d => console.log(`integrity digest is ${d}`))
+)
+```
+
+##### <a name="put-options"></a> Options
+
+##### `opts.metadata`
+
+Arbitrary metadata to be attached to the inserted key.
+
+##### `opts.size`
+
+If provided, the data stream will be verified to check that enough data was
+passed through. If there's more or less data than expected, insertion will fail
+with an `EBADSIZE` error.
+
+##### `opts.integrity`
+
+If present, the pre-calculated digest for the inserted content. If this option
+is provided and does not match the post-insertion digest, insertion will fail
+with an `EINTEGRITY` error.
+
+`algorithms` has no effect if this option is present.
+
+##### `opts.algorithms`
+
+Default: ['sha512']
+
+Hashing algorithms to use when calculating the [subresource integrity
+digest](#integrity)
+for inserted data. Can use any algorithm listed in `crypto.getHashes()` or
+`'omakase'`/`'お任せします'` to pick a random hash algorithm on each insertion. You
+may also use any anagram of `'modnar'` to use this feature.
+
+Currently only supports one algorithm at a time (i.e., an array length of
+exactly `1`). Has no effect if `opts.integrity` is present.
+
+##### `opts.memoize`
+
+Default: null
+
+If provided, cacache will memoize the given cache insertion in memory, bypassing
+any filesystem checks for that key or digest in future cache fetches. Nothing
+will be written to the in-memory cache unless this option is explicitly truthy.
+
+If `opts.memoize` is an object or a `Map`-like (that is, an object with `get`
+and `set` methods), it will be written to instead of the global memoization
+cache.
+
+Reading from disk data can be forced by explicitly passing `memoize: false` to
+the reader functions, but their default will be to read from memory.
+
+##### `opts.tmpPrefix`
+Default: null
+
+Prefix to append on the temporary directory name inside the cache's tmp dir. 
+
+#### <a name="rm-all"></a> `> cacache.rm.all(cache) -> Promise`
+
+Clears the entire cache. Mainly by blowing away the cache directory itself.
+
+##### Example
+
+```javascript
+cacache.rm.all(cachePath).then(() => {
+  console.log('THE APOCALYPSE IS UPON US 😱')
+})
+```
+
+#### <a name="rm-entry"></a> `> cacache.rm.entry(cache, key, [opts]) -> Promise`
+
+Alias: `cacache.rm`
+
+Removes the index entry for `key`. Content will still be accessible if
+requested directly by content address ([`get.stream.byDigest`](#get-stream)).
+
+By default, this appends a new entry to the index with an integrity of `null`.
+If `opts.removeFully` is set to `true` then the index file itself will be
+physically deleted rather than appending a `null`.
+
+To remove the content itself (which might still be used by other entries), use
+[`rm.content`](#rm-content). Or, to safely vacuum any unused content, use
+[`verify`](#verify).
+
+##### Example
+
+```javascript
+cacache.rm.entry(cachePath, 'my-thing').then(() => {
+  console.log('I did not like it anyway')
+})
+```
+
+#### <a name="rm-content"></a> `> cacache.rm.content(cache, integrity) -> Promise`
+
+Removes the content identified by `integrity`. Any index entries referring to it
+will not be usable again until the content is re-added to the cache with an
+identical digest.
+
+##### Example
+
+```javascript
+cacache.rm.content(cachePath, 'sha512-SoMeDIGest/IN+BaSE64==').then(() => {
+  console.log('data for my-thing is gone!')
+})
+```
+
+#### <a name="index-compact"></a> `> cacache.index.compact(cache, key, matchFn, [opts]) -> Promise`
+
+Uses `matchFn`, which must be a synchronous function that accepts two entries
+and returns a boolean indicating whether or not the two entries match, to
+deduplicate all entries in the cache for the given `key`.
+
+If `opts.validateEntry` is provided, it will be called as a function with the
+only parameter being a single index entry. The function must return a Boolean,
+if it returns `true` the entry is considered valid and will be kept in the index,
+if it returns `false` the entry will be removed from the index.
+
+If `opts.validateEntry` is not provided, however, every entry in the index will
+be deduplicated and kept until the first `null` integrity is reached, removing
+all entries that were written before the `null`.
+
+The deduplicated list of entries is both written to the index, replacing the
+existing content, and returned in the Promise.
+
+#### <a name="index-insert"></a> `> cacache.index.insert(cache, key, integrity, opts) -> Promise`
+
+Writes an index entry to the cache for the given `key` without writing content.
+
+It is assumed if you are using this method, you have already stored the content
+some other way and you only wish to add a new index to that content. The `metadata`
+and `size` properties are read from `opts` and used as part of the index entry.
+
+Returns a Promise resolving to the newly added entry.
+
+#### <a name="clear-memoized"></a> `> cacache.clearMemoized()`
+
+Completely resets the in-memory entry cache.
+
+#### <a name="tmp-mkdir"></a> `> tmp.mkdir(cache, opts) -> Promise<Path>`
+
+Returns a unique temporary directory inside the cache's `tmp` dir. This
+directory will use the same safe user assignment that all the other stuff use.
+
+Once the directory is made, it's the user's responsibility that all files
+within are given the appropriate `gid`/`uid` ownership settings to match
+the rest of the cache. If not, you can ask cacache to do it for you by
+calling [`tmp.fix()`](#tmp-fix), which will fix all tmp directory
+permissions.
+
+If you want automatic cleanup of this directory, use
+[`tmp.withTmp()`](#with-tpm)
+
+See: [options](#tmp-options)
+
+##### Example
+
+```javascript
+cacache.tmp.mkdir(cache).then(dir => {
+  fs.writeFile(path.join(dir, 'blablabla'), Buffer#<1234>, ...)
+})
+```
+
+#### <a name="tmp-fix"></a> `> tmp.fix(cache) -> Promise`
+
+Sets the `uid` and `gid` properties on all files and folders within the tmp
+folder to match the rest of the cache.
+
+Use this after manually writing files into [`tmp.mkdir`](#tmp-mkdir) or
+[`tmp.withTmp`](#with-tmp).
+
+##### Example
+
+```javascript
+cacache.tmp.mkdir(cache).then(dir => {
+  writeFile(path.join(dir, 'file'), someData).then(() => {
+    // make sure we didn't just put a root-owned file in the cache
+    cacache.tmp.fix().then(() => {
+      // all uids and gids match now
+    })
+  })
+})
+```
+
+#### <a name="with-tmp"></a> `> tmp.withTmp(cache, opts, cb) -> Promise`
+
+Creates a temporary directory with [`tmp.mkdir()`](#tmp-mkdir) and calls `cb`
+with it. The created temporary directory will be removed when the return value
+of `cb()` resolves, the tmp directory will be automatically deleted once that 
+promise completes.
+
+The same caveats apply when it comes to managing permissions for the tmp dir's
+contents.
+
+See: [options](#tmp-options)
+
+##### Example
+
+```javascript
+cacache.tmp.withTmp(cache, dir => {
+  return fs.writeFileAsync(path.join(dir, 'blablabla'), Buffer#<1234>, ...)
+}).then(() => {
+  // `dir` no longer exists
+})
+```
+
+##### <a name="tmp-options"></a> Options
+
+##### `opts.tmpPrefix`
+Default: null
+
+Prefix to append on the temporary directory name inside the cache's tmp dir. 
+
+#### <a name="integrity"></a> Subresource Integrity Digests
+
+For content verification and addressing, cacache uses strings following the
+[Subresource
+Integrity spec](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity).
+That is, any time cacache expects an `integrity` argument or option, it
+should be in the format `<hashAlgorithm>-<base64-hash>`.
+
+One deviation from the current spec is that cacache will support any hash
+algorithms supported by the underlying Node.js process. You can use
+`crypto.getHashes()` to see which ones you can use.
+
+##### Generating Digests Yourself
+
+If you have an existing content shasum, they are generally formatted as a
+hexadecimal string (that is, a sha1 would look like:
+`5f5513f8822fdbe5145af33b64d8d970dcf95c6e`). In order to be compatible with
+cacache, you'll need to convert this to an equivalent subresource integrity
+string. For this example, the corresponding hash would be:
+`sha1-X1UT+IIv2+UUWvM7ZNjZcNz5XG4=`.
+
+If you want to generate an integrity string yourself for existing data, you can
+use something like this:
+
+```javascript
+const crypto = require('crypto')
+const hashAlgorithm = 'sha512'
+const data = 'foobarbaz'
+
+const integrity = (
+  hashAlgorithm +
+  '-' +
+  crypto.createHash(hashAlgorithm).update(data).digest('base64')
+)
+```
+
+You can also use [`ssri`](https://npm.im/ssri) to have a richer set of functionality
+around SRI strings, including generation, parsing, and translating from existing
+hex-formatted strings.
+
+#### <a name="verify"></a> `> cacache.verify(cache, opts) -> Promise`
+
+Checks out and fixes up your cache:
+
+* Cleans up corrupted or invalid index entries.
+* Custom entry filtering options.
+* Garbage collects any content entries not referenced by the index.
+* Checks integrity for all content entries and removes invalid content.
+* Fixes cache ownership.
+* Removes the `tmp` directory in the cache and all its contents.
+
+When it's done, it'll return an object with various stats about the verification
+process, including amount of storage reclaimed, number of valid entries, number
+of entries removed, etc.
+
+##### <a name="verify-options"></a> Options
+
+##### `opts.concurrency`
+
+Default: 20
+
+Number of concurrently read files in the filesystem while doing clean up.
+
+##### `opts.filter`
+Receives a formatted entry. Return false to remove it.
+Note: might be called more than once on the same entry.
+
+##### `opts.log`
+Custom logger function:
+```
+  log: { silly () {} }
+  log.silly('verify', 'verifying cache at', cache)
+```
+
+##### Example
+
+```sh
+echo somegarbage >> $CACHEPATH/content/deadbeef
+```
+
+```javascript
+cacache.verify(cachePath).then(stats => {
+  // deadbeef collected, because of invalid checksum.
+  console.log('cache is much nicer now! stats:', stats)
+})
+```
+
+#### <a name="verify-last-run"></a> `> cacache.verify.lastRun(cache) -> Promise`
+
+Returns a `Date` representing the last time `cacache.verify` was run on `cache`.
+
+##### Example
+
+```javascript
+cacache.verify(cachePath).then(() => {
+  cacache.verify.lastRun(cachePath).then(lastTime => {
+    console.log('cacache.verify was last called on' + lastTime)
+  })
+})
+```
diff --git a/node_modules/cacache/get.js b/node_modules/cacache/get.js
new file mode 100644
index 0000000..4e905e7
--- /dev/null
+++ b/node_modules/cacache/get.js
@@ -0,0 +1,237 @@
+'use strict'
+
+const Collect = require('minipass-collect')
+const Minipass = require('minipass')
+const Pipeline = require('minipass-pipeline')
+const fs = require('fs')
+const util = require('util')
+
+const index = require('./lib/entry-index')
+const memo = require('./lib/memoization')
+const read = require('./lib/content/read')
+
+const writeFile = util.promisify(fs.writeFile)
+
+function getData (cache, key, opts = {}) {
+  const { integrity, memoize, size } = opts
+  const memoized = memo.get(cache, key, opts)
+  if (memoized && memoize !== false) {
+    return Promise.resolve({
+      metadata: memoized.entry.metadata,
+      data: memoized.data,
+      integrity: memoized.entry.integrity,
+      size: memoized.entry.size,
+    })
+  }
+
+  return index.find(cache, key, opts).then((entry) => {
+    if (!entry)
+      throw new index.NotFoundError(cache, key)
+
+    return read(cache, entry.integrity, { integrity, size }).then((data) => {
+      if (memoize)
+        memo.put(cache, entry, data, opts)
+
+      return {
+        data,
+        metadata: entry.metadata,
+        size: entry.size,
+        integrity: entry.integrity,
+      }
+    })
+  })
+}
+module.exports = getData
+
+function getDataByDigest (cache, key, opts = {}) {
+  const { integrity, memoize, size } = opts
+  const memoized = memo.get.byDigest(cache, key, opts)
+  if (memoized && memoize !== false)
+    return Promise.resolve(memoized)
+
+  return read(cache, key, { integrity, size }).then((res) => {
+    if (memoize)
+      memo.put.byDigest(cache, key, res, opts)
+    return res
+  })
+}
+module.exports.byDigest = getDataByDigest
+
+function getDataSync (cache, key, opts = {}) {
+  const { integrity, memoize, size } = opts
+  const memoized = memo.get(cache, key, opts)
+
+  if (memoized && memoize !== false) {
+    return {
+      metadata: memoized.entry.metadata,
+      data: memoized.data,
+      integrity: memoized.entry.integrity,
+      size: memoized.entry.size,
+    }
+  }
+  const entry = index.find.sync(cache, key, opts)
+  if (!entry)
+    throw new index.NotFoundError(cache, key)
+  const data = read.sync(cache, entry.integrity, {
+    integrity: integrity,
+    size: size,
+  })
+  const res = {
+    metadata: entry.metadata,
+    data: data,
+    size: entry.size,
+    integrity: entry.integrity,
+  }
+  if (memoize)
+    memo.put(cache, entry, res.data, opts)
+
+  return res
+}
+
+module.exports.sync = getDataSync
+
+function getDataByDigestSync (cache, digest, opts = {}) {
+  const { integrity, memoize, size } = opts
+  const memoized = memo.get.byDigest(cache, digest, opts)
+
+  if (memoized && memoize !== false)
+    return memoized
+
+  const res = read.sync(cache, digest, {
+    integrity: integrity,
+    size: size,
+  })
+  if (memoize)
+    memo.put.byDigest(cache, digest, res, opts)
+
+  return res
+}
+module.exports.sync.byDigest = getDataByDigestSync
+
+const getMemoizedStream = (memoized) => {
+  const stream = new Minipass()
+  stream.on('newListener', function (ev, cb) {
+    ev === 'metadata' && cb(memoized.entry.metadata)
+    ev === 'integrity' && cb(memoized.entry.integrity)
+    ev === 'size' && cb(memoized.entry.size)
+  })
+  stream.end(memoized.data)
+  return stream
+}
+
+function getStream (cache, key, opts = {}) {
+  const { memoize, size } = opts
+  const memoized = memo.get(cache, key, opts)
+  if (memoized && memoize !== false)
+    return getMemoizedStream(memoized)
+
+  const stream = new Pipeline()
+  index
+    .find(cache, key)
+    .then((entry) => {
+      if (!entry)
+        throw new index.NotFoundError(cache, key)
+
+      stream.emit('metadata', entry.metadata)
+      stream.emit('integrity', entry.integrity)
+      stream.emit('size', entry.size)
+      stream.on('newListener', function (ev, cb) {
+        ev === 'metadata' && cb(entry.metadata)
+        ev === 'integrity' && cb(entry.integrity)
+        ev === 'size' && cb(entry.size)
+      })
+
+      const src = read.readStream(
+        cache,
+        entry.integrity,
+        { ...opts, size: typeof size !== 'number' ? entry.size : size }
+      )
+
+      if (memoize) {
+        const memoStream = new Collect.PassThrough()
+        memoStream.on('collect', data => memo.put(cache, entry, data, opts))
+        stream.unshift(memoStream)
+      }
+      stream.unshift(src)
+    })
+    .catch((err) => stream.emit('error', err))
+
+  return stream
+}
+
+module.exports.stream = getStream
+
+function getStreamDigest (cache, integrity, opts = {}) {
+  const { memoize } = opts
+  const memoized = memo.get.byDigest(cache, integrity, opts)
+  if (memoized && memoize !== false) {
+    const stream = new Minipass()
+    stream.end(memoized)
+    return stream
+  } else {
+    const stream = read.readStream(cache, integrity, opts)
+    if (!memoize)
+      return stream
+
+    const memoStream = new Collect.PassThrough()
+    memoStream.on('collect', data => memo.put.byDigest(
+      cache,
+      integrity,
+      data,
+      opts
+    ))
+    return new Pipeline(stream, memoStream)
+  }
+}
+
+module.exports.stream.byDigest = getStreamDigest
+
+function info (cache, key, opts = {}) {
+  const { memoize } = opts
+  const memoized = memo.get(cache, key, opts)
+  if (memoized && memoize !== false)
+    return Promise.resolve(memoized.entry)
+  else
+    return index.find(cache, key)
+}
+module.exports.info = info
+
+function copy (cache, key, dest, opts = {}) {
+  if (read.copy) {
+    return index.find(cache, key, opts).then((entry) => {
+      if (!entry)
+        throw new index.NotFoundError(cache, key)
+      return read.copy(cache, entry.integrity, dest, opts)
+        .then(() => {
+          return {
+            metadata: entry.metadata,
+            size: entry.size,
+            integrity: entry.integrity,
+          }
+        })
+    })
+  }
+
+  return getData(cache, key, opts).then((res) => {
+    return writeFile(dest, res.data).then(() => {
+      return {
+        metadata: res.metadata,
+        size: res.size,
+        integrity: res.integrity,
+      }
+    })
+  })
+}
+module.exports.copy = copy
+
+function copyByDigest (cache, key, dest, opts = {}) {
+  if (read.copy)
+    return read.copy(cache, key, dest, opts).then(() => key)
+
+  return getDataByDigest(cache, key, opts).then((res) => {
+    return writeFile(dest, res).then(() => key)
+  })
+}
+module.exports.copy.byDigest = copyByDigest
+
+module.exports.hasContent = read.hasContent
diff --git a/node_modules/cacache/index.js b/node_modules/cacache/index.js
new file mode 100644
index 0000000..c8c52b0
--- /dev/null
+++ b/node_modules/cacache/index.js
@@ -0,0 +1,46 @@
+'use strict'
+
+const ls = require('./ls.js')
+const get = require('./get.js')
+const put = require('./put.js')
+const rm = require('./rm.js')
+const verify = require('./verify.js')
+const { clearMemoized } = require('./lib/memoization.js')
+const tmp = require('./lib/util/tmp.js')
+const index = require('./lib/entry-index.js')
+
+module.exports.index = {}
+module.exports.index.compact = index.compact
+module.exports.index.insert = index.insert
+
+module.exports.ls = ls
+module.exports.ls.stream = ls.stream
+
+module.exports.get = get
+module.exports.get.byDigest = get.byDigest
+module.exports.get.sync = get.sync
+module.exports.get.sync.byDigest = get.sync.byDigest
+module.exports.get.stream = get.stream
+module.exports.get.stream.byDigest = get.stream.byDigest
+module.exports.get.copy = get.copy
+module.exports.get.copy.byDigest = get.copy.byDigest
+module.exports.get.info = get.info
+module.exports.get.hasContent = get.hasContent
+module.exports.get.hasContent.sync = get.hasContent.sync
+
+module.exports.put = put
+module.exports.put.stream = put.stream
+
+module.exports.rm = rm.entry
+module.exports.rm.all = rm.all
+module.exports.rm.entry = module.exports.rm
+module.exports.rm.content = rm.content
+
+module.exports.clearMemoized = clearMemoized
+
+module.exports.tmp = {}
+module.exports.tmp.mkdir = tmp.mkdir
+module.exports.tmp.withTmp = tmp.withTmp
+
+module.exports.verify = verify
+module.exports.verify.lastRun = verify.lastRun
diff --git a/node_modules/cacache/lib/content/path.js b/node_modules/cacache/lib/content/path.js
new file mode 100644
index 0000000..ad5a76a
--- /dev/null
+++ b/node_modules/cacache/lib/content/path.js
@@ -0,0 +1,29 @@
+'use strict'
+
+const contentVer = require('../../package.json')['cache-version'].content
+const hashToSegments = require('../util/hash-to-segments')
+const path = require('path')
+const ssri = require('ssri')
+
+// Current format of content file path:
+//
+// sha512-BaSE64Hex= ->
+// ~/.my-cache/content-v2/sha512/ba/da/55deadbeefc0ffee
+//
+module.exports = contentPath
+
+function contentPath (cache, integrity) {
+  const sri = ssri.parse(integrity, { single: true })
+  // contentPath is the *strongest* algo given
+  return path.join(
+    contentDir(cache),
+    sri.algorithm,
+    ...hashToSegments(sri.hexDigest())
+  )
+}
+
+module.exports.contentDir = contentDir
+
+function contentDir (cache) {
+  return path.join(cache, `content-v${contentVer}`)
+}
diff --git a/node_modules/cacache/lib/content/read.js b/node_modules/cacache/lib/content/read.js
new file mode 100644
index 0000000..034e8ee
--- /dev/null
+++ b/node_modules/cacache/lib/content/read.js
@@ -0,0 +1,244 @@
+'use strict'
+
+const util = require('util')
+
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const ssri = require('ssri')
+const contentPath = require('./path')
+const Pipeline = require('minipass-pipeline')
+
+const lstat = util.promisify(fs.lstat)
+const readFile = util.promisify(fs.readFile)
+
+module.exports = read
+
+const MAX_SINGLE_READ_SIZE = 64 * 1024 * 1024
+function read (cache, integrity, opts = {}) {
+  const { size } = opts
+  return withContentSri(cache, integrity, (cpath, sri) => {
+    // get size
+    return lstat(cpath).then(stat => ({ stat, cpath, sri }))
+  }).then(({ stat, cpath, sri }) => {
+    if (typeof size === 'number' && stat.size !== size)
+      throw sizeError(size, stat.size)
+
+    if (stat.size > MAX_SINGLE_READ_SIZE)
+      return readPipeline(cpath, stat.size, sri, new Pipeline()).concat()
+
+    return readFile(cpath, null).then((data) => {
+      if (!ssri.checkData(data, sri))
+        throw integrityError(sri, cpath)
+
+      return data
+    })
+  })
+}
+
+const readPipeline = (cpath, size, sri, stream) => {
+  stream.push(
+    new fsm.ReadStream(cpath, {
+      size,
+      readSize: MAX_SINGLE_READ_SIZE,
+    }),
+    ssri.integrityStream({
+      integrity: sri,
+      size,
+    })
+  )
+  return stream
+}
+
+module.exports.sync = readSync
+
+function readSync (cache, integrity, opts = {}) {
+  const { size } = opts
+  return withContentSriSync(cache, integrity, (cpath, sri) => {
+    const data = fs.readFileSync(cpath)
+    if (typeof size === 'number' && size !== data.length)
+      throw sizeError(size, data.length)
+
+    if (ssri.checkData(data, sri))
+      return data
+
+    throw integrityError(sri, cpath)
+  })
+}
+
+module.exports.stream = readStream
+module.exports.readStream = readStream
+
+function readStream (cache, integrity, opts = {}) {
+  const { size } = opts
+  const stream = new Pipeline()
+  withContentSri(cache, integrity, (cpath, sri) => {
+    // just lstat to ensure it exists
+    return lstat(cpath).then((stat) => ({ stat, cpath, sri }))
+  }).then(({ stat, cpath, sri }) => {
+    if (typeof size === 'number' && size !== stat.size)
+      return stream.emit('error', sizeError(size, stat.size))
+
+    readPipeline(cpath, stat.size, sri, stream)
+  }, er => stream.emit('error', er))
+
+  return stream
+}
+
+let copyFile
+if (fs.copyFile) {
+  module.exports.copy = copy
+  module.exports.copy.sync = copySync
+  copyFile = util.promisify(fs.copyFile)
+}
+
+function copy (cache, integrity, dest) {
+  return withContentSri(cache, integrity, (cpath, sri) => {
+    return copyFile(cpath, dest)
+  })
+}
+
+function copySync (cache, integrity, dest) {
+  return withContentSriSync(cache, integrity, (cpath, sri) => {
+    return fs.copyFileSync(cpath, dest)
+  })
+}
+
+module.exports.hasContent = hasContent
+
+function hasContent (cache, integrity) {
+  if (!integrity)
+    return Promise.resolve(false)
+
+  return withContentSri(cache, integrity, (cpath, sri) => {
+    return lstat(cpath).then((stat) => ({ size: stat.size, sri, stat }))
+  }).catch((err) => {
+    if (err.code === 'ENOENT')
+      return false
+
+    if (err.code === 'EPERM') {
+      /* istanbul ignore else */
+      if (process.platform !== 'win32')
+        throw err
+      else
+        return false
+    }
+  })
+}
+
+module.exports.hasContent.sync = hasContentSync
+
+function hasContentSync (cache, integrity) {
+  if (!integrity)
+    return false
+
+  return withContentSriSync(cache, integrity, (cpath, sri) => {
+    try {
+      const stat = fs.lstatSync(cpath)
+      return { size: stat.size, sri, stat }
+    } catch (err) {
+      if (err.code === 'ENOENT')
+        return false
+
+      if (err.code === 'EPERM') {
+        /* istanbul ignore else */
+        if (process.platform !== 'win32')
+          throw err
+        else
+          return false
+      }
+    }
+  })
+}
+
+function withContentSri (cache, integrity, fn) {
+  const tryFn = () => {
+    const sri = ssri.parse(integrity)
+    // If `integrity` has multiple entries, pick the first digest
+    // with available local data.
+    const algo = sri.pickAlgorithm()
+    const digests = sri[algo]
+
+    if (digests.length <= 1) {
+      const cpath = contentPath(cache, digests[0])
+      return fn(cpath, digests[0])
+    } else {
+      // Can't use race here because a generic error can happen before
+      // a ENOENT error, and can happen before a valid result
+      return Promise
+        .all(digests.map((meta) => {
+          return withContentSri(cache, meta, fn)
+            .catch((err) => {
+              if (err.code === 'ENOENT') {
+                return Object.assign(
+                  new Error('No matching content found for ' + sri.toString()),
+                  { code: 'ENOENT' }
+                )
+              }
+              return err
+            })
+        }))
+        .then((results) => {
+          // Return the first non error if it is found
+          const result = results.find((r) => !(r instanceof Error))
+          if (result)
+            return result
+
+          // Throw the No matching content found error
+          const enoentError = results.find((r) => r.code === 'ENOENT')
+          if (enoentError)
+            throw enoentError
+
+          // Throw generic error
+          throw results.find((r) => r instanceof Error)
+        })
+    }
+  }
+
+  return new Promise((resolve, reject) => {
+    try {
+      tryFn()
+        .then(resolve)
+        .catch(reject)
+    } catch (err) {
+      reject(err)
+    }
+  })
+}
+
+function withContentSriSync (cache, integrity, fn) {
+  const sri = ssri.parse(integrity)
+  // If `integrity` has multiple entries, pick the first digest
+  // with available local data.
+  const algo = sri.pickAlgorithm()
+  const digests = sri[algo]
+  if (digests.length <= 1) {
+    const cpath = contentPath(cache, digests[0])
+    return fn(cpath, digests[0])
+  } else {
+    let lastErr = null
+    for (const meta of digests) {
+      try {
+        return withContentSriSync(cache, meta, fn)
+      } catch (err) {
+        lastErr = err
+      }
+    }
+    throw lastErr
+  }
+}
+
+function sizeError (expected, found) {
+  const err = new Error(`Bad data size: expected inserted data to be ${expected} bytes, but got ${found} instead`)
+  err.expected = expected
+  err.found = found
+  err.code = 'EBADSIZE'
+  return err
+}
+
+function integrityError (sri, path) {
+  const err = new Error(`Integrity verification failed for ${sri} (${path})`)
+  err.code = 'EINTEGRITY'
+  err.sri = sri
+  err.path = path
+  return err
+}
diff --git a/node_modules/cacache/lib/content/rm.js b/node_modules/cacache/lib/content/rm.js
new file mode 100644
index 0000000..6a3d1a3
--- /dev/null
+++ b/node_modules/cacache/lib/content/rm.js
@@ -0,0 +1,19 @@
+'use strict'
+
+const util = require('util')
+
+const contentPath = require('./path')
+const { hasContent } = require('./read')
+const rimraf = util.promisify(require('rimraf'))
+
+module.exports = rm
+
+function rm (cache, integrity) {
+  return hasContent(cache, integrity).then((content) => {
+    // ~pretty~ sure we can't end up with a content lacking sri, but be safe
+    if (content && content.sri)
+      return rimraf(contentPath(cache, content.sri)).then(() => true)
+    else
+      return false
+  })
+}
diff --git a/node_modules/cacache/lib/content/write.js b/node_modules/cacache/lib/content/write.js
new file mode 100644
index 0000000..dde1bd1
--- /dev/null
+++ b/node_modules/cacache/lib/content/write.js
@@ -0,0 +1,189 @@
+'use strict'
+
+const util = require('util')
+
+const contentPath = require('./path')
+const fixOwner = require('../util/fix-owner')
+const fs = require('fs')
+const moveFile = require('../util/move-file')
+const Minipass = require('minipass')
+const Pipeline = require('minipass-pipeline')
+const Flush = require('minipass-flush')
+const path = require('path')
+const rimraf = util.promisify(require('rimraf'))
+const ssri = require('ssri')
+const uniqueFilename = require('unique-filename')
+const { disposer } = require('./../util/disposer')
+const fsm = require('fs-minipass')
+
+const writeFile = util.promisify(fs.writeFile)
+
+module.exports = write
+
+function write (cache, data, opts = {}) {
+  const { algorithms, size, integrity } = opts
+  if (algorithms && algorithms.length > 1)
+    throw new Error('opts.algorithms only supports a single algorithm for now')
+
+  if (typeof size === 'number' && data.length !== size)
+    return Promise.reject(sizeError(size, data.length))
+
+  const sri = ssri.fromData(data, algorithms ? { algorithms } : {})
+  if (integrity && !ssri.checkData(data, integrity, opts))
+    return Promise.reject(checksumError(integrity, sri))
+
+  return disposer(makeTmp(cache, opts), makeTmpDisposer,
+    (tmp) => {
+      return writeFile(tmp.target, data, { flag: 'wx' })
+        .then(() => moveToDestination(tmp, cache, sri, opts))
+    })
+    .then(() => ({ integrity: sri, size: data.length }))
+}
+
+module.exports.stream = writeStream
+
+// writes proxied to the 'inputStream' that is passed to the Promise
+// 'end' is deferred until content is handled.
+class CacacheWriteStream extends Flush {
+  constructor (cache, opts) {
+    super()
+    this.opts = opts
+    this.cache = cache
+    this.inputStream = new Minipass()
+    this.inputStream.on('error', er => this.emit('error', er))
+    this.inputStream.on('drain', () => this.emit('drain'))
+    this.handleContentP = null
+  }
+
+  write (chunk, encoding, cb) {
+    if (!this.handleContentP) {
+      this.handleContentP = handleContent(
+        this.inputStream,
+        this.cache,
+        this.opts
+      )
+    }
+    return this.inputStream.write(chunk, encoding, cb)
+  }
+
+  flush (cb) {
+    this.inputStream.end(() => {
+      if (!this.handleContentP) {
+        const e = new Error('Cache input stream was empty')
+        e.code = 'ENODATA'
+        // empty streams are probably emitting end right away.
+        // defer this one tick by rejecting a promise on it.
+        return Promise.reject(e).catch(cb)
+      }
+      this.handleContentP.then(
+        (res) => {
+          res.integrity && this.emit('integrity', res.integrity)
+          res.size !== null && this.emit('size', res.size)
+          cb()
+        },
+        (er) => cb(er)
+      )
+    })
+  }
+}
+
+function writeStream (cache, opts = {}) {
+  return new CacacheWriteStream(cache, opts)
+}
+
+function handleContent (inputStream, cache, opts) {
+  return disposer(makeTmp(cache, opts), makeTmpDisposer, (tmp) => {
+    return pipeToTmp(inputStream, cache, tmp.target, opts)
+      .then((res) => {
+        return moveToDestination(
+          tmp,
+          cache,
+          res.integrity,
+          opts
+        ).then(() => res)
+      })
+  })
+}
+
+function pipeToTmp (inputStream, cache, tmpTarget, opts) {
+  let integrity
+  let size
+  const hashStream = ssri.integrityStream({
+    integrity: opts.integrity,
+    algorithms: opts.algorithms,
+    size: opts.size,
+  })
+  hashStream.on('integrity', i => {
+    integrity = i
+  })
+  hashStream.on('size', s => {
+    size = s
+  })
+
+  const outStream = new fsm.WriteStream(tmpTarget, {
+    flags: 'wx',
+  })
+
+  // NB: this can throw if the hashStream has a problem with
+  // it, and the data is fully written.  but pipeToTmp is only
+  // called in promisory contexts where that is handled.
+  const pipeline = new Pipeline(
+    inputStream,
+    hashStream,
+    outStream
+  )
+
+  return pipeline.promise()
+    .then(() => ({ integrity, size }))
+    .catch(er => rimraf(tmpTarget).then(() => {
+      throw er
+    }))
+}
+
+function makeTmp (cache, opts) {
+  const tmpTarget = uniqueFilename(path.join(cache, 'tmp'), opts.tmpPrefix)
+  return fixOwner.mkdirfix(cache, path.dirname(tmpTarget)).then(() => ({
+    target: tmpTarget,
+    moved: false,
+  }))
+}
+
+function makeTmpDisposer (tmp) {
+  if (tmp.moved)
+    return Promise.resolve()
+
+  return rimraf(tmp.target)
+}
+
+function moveToDestination (tmp, cache, sri, opts) {
+  const destination = contentPath(cache, sri)
+  const destDir = path.dirname(destination)
+
+  return fixOwner
+    .mkdirfix(cache, destDir)
+    .then(() => {
+      return moveFile(tmp.target, destination)
+    })
+    .then(() => {
+      tmp.moved = true
+      return fixOwner.chownr(cache, destination)
+    })
+}
+
+function sizeError (expected, found) {
+  const err = new Error(`Bad data size: expected inserted data to be ${expected} bytes, but got ${found} instead`)
+  err.expected = expected
+  err.found = found
+  err.code = 'EBADSIZE'
+  return err
+}
+
+function checksumError (expected, found) {
+  const err = new Error(`Integrity check failed:
+  Wanted: ${expected}
+   Found: ${found}`)
+  err.code = 'EINTEGRITY'
+  err.expected = expected
+  err.found = found
+  return err
+}
diff --git a/node_modules/cacache/lib/entry-index.js b/node_modules/cacache/lib/entry-index.js
new file mode 100644
index 0000000..71aac5e
--- /dev/null
+++ b/node_modules/cacache/lib/entry-index.js
@@ -0,0 +1,394 @@
+'use strict'
+
+const util = require('util')
+const crypto = require('crypto')
+const fs = require('fs')
+const Minipass = require('minipass')
+const path = require('path')
+const ssri = require('ssri')
+const uniqueFilename = require('unique-filename')
+
+const { disposer } = require('./util/disposer')
+const contentPath = require('./content/path')
+const fixOwner = require('./util/fix-owner')
+const hashToSegments = require('./util/hash-to-segments')
+const indexV = require('../package.json')['cache-version'].index
+const moveFile = require('@npmcli/move-file')
+const _rimraf = require('rimraf')
+const rimraf = util.promisify(_rimraf)
+rimraf.sync = _rimraf.sync
+
+const appendFile = util.promisify(fs.appendFile)
+const readFile = util.promisify(fs.readFile)
+const readdir = util.promisify(fs.readdir)
+const writeFile = util.promisify(fs.writeFile)
+
+module.exports.NotFoundError = class NotFoundError extends Error {
+  constructor (cache, key) {
+    super(`No cache entry for ${key} found in ${cache}`)
+    this.code = 'ENOENT'
+    this.cache = cache
+    this.key = key
+  }
+}
+
+module.exports.compact = compact
+
+async function compact (cache, key, matchFn, opts = {}) {
+  const bucket = bucketPath(cache, key)
+  const entries = await bucketEntries(bucket)
+  const newEntries = []
+  // we loop backwards because the bottom-most result is the newest
+  // since we add new entries with appendFile
+  for (let i = entries.length - 1; i >= 0; --i) {
+    const entry = entries[i]
+    // a null integrity could mean either a delete was appended
+    // or the user has simply stored an index that does not map
+    // to any content. we determine if the user wants to keep the
+    // null integrity based on the validateEntry function passed in options.
+    // if the integrity is null and no validateEntry is provided, we break
+    // as we consider the null integrity to be a deletion of everything
+    // that came before it.
+    if (entry.integrity === null && !opts.validateEntry)
+      break
+
+    // if this entry is valid, and it is either the first entry or
+    // the newEntries array doesn't already include an entry that
+    // matches this one based on the provided matchFn, then we add
+    // it to the beginning of our list
+    if ((!opts.validateEntry || opts.validateEntry(entry) === true) &&
+      (newEntries.length === 0 ||
+        !newEntries.find((oldEntry) => matchFn(oldEntry, entry))))
+      newEntries.unshift(entry)
+  }
+
+  const newIndex = '\n' + newEntries.map((entry) => {
+    const stringified = JSON.stringify(entry)
+    const hash = hashEntry(stringified)
+    return `${hash}\t${stringified}`
+  }).join('\n')
+
+  const setup = async () => {
+    const target = uniqueFilename(path.join(cache, 'tmp'), opts.tmpPrefix)
+    await fixOwner.mkdirfix(cache, path.dirname(target))
+    return {
+      target,
+      moved: false,
+    }
+  }
+
+  const teardown = async (tmp) => {
+    if (!tmp.moved)
+      return rimraf(tmp.target)
+  }
+
+  const write = async (tmp) => {
+    await writeFile(tmp.target, newIndex, { flag: 'wx' })
+    await fixOwner.mkdirfix(cache, path.dirname(bucket))
+    // we use @npmcli/move-file directly here because we
+    // want to overwrite the existing file
+    await moveFile(tmp.target, bucket)
+    tmp.moved = true
+    try {
+      await fixOwner.chownr(cache, bucket)
+    } catch (err) {
+      if (err.code !== 'ENOENT')
+        throw err
+    }
+  }
+
+  // write the file atomically
+  await disposer(setup(), teardown, write)
+
+  // we reverse the list we generated such that the newest
+  // entries come first in order to make looping through them easier
+  // the true passed to formatEntry tells it to keep null
+  // integrity values, if they made it this far it's because
+  // validateEntry returned true, and as such we should return it
+  return newEntries.reverse().map((entry) => formatEntry(cache, entry, true))
+}
+
+module.exports.insert = insert
+
+function insert (cache, key, integrity, opts = {}) {
+  const { metadata, size } = opts
+  const bucket = bucketPath(cache, key)
+  const entry = {
+    key,
+    integrity: integrity && ssri.stringify(integrity),
+    time: Date.now(),
+    size,
+    metadata,
+  }
+  return fixOwner
+    .mkdirfix(cache, path.dirname(bucket))
+    .then(() => {
+      const stringified = JSON.stringify(entry)
+      // NOTE - Cleverness ahoy!
+      //
+      // This works because it's tremendously unlikely for an entry to corrupt
+      // another while still preserving the string length of the JSON in
+      // question. So, we just slap the length in there and verify it on read.
+      //
+      // Thanks to @isaacs for the whiteboarding session that ended up with
+      // this.
+      return appendFile(bucket, `\n${hashEntry(stringified)}\t${stringified}`)
+    })
+    .then(() => fixOwner.chownr(cache, bucket))
+    .catch((err) => {
+      if (err.code === 'ENOENT')
+        return undefined
+
+      throw err
+      // There's a class of race conditions that happen when things get deleted
+      // during fixOwner, or between the two mkdirfix/chownr calls.
+      //
+      // It's perfectly fine to just not bother in those cases and lie
+      // that the index entry was written. Because it's a cache.
+    })
+    .then(() => {
+      return formatEntry(cache, entry)
+    })
+}
+
+module.exports.insert.sync = insertSync
+
+function insertSync (cache, key, integrity, opts = {}) {
+  const { metadata, size } = opts
+  const bucket = bucketPath(cache, key)
+  const entry = {
+    key,
+    integrity: integrity && ssri.stringify(integrity),
+    time: Date.now(),
+    size,
+    metadata,
+  }
+  fixOwner.mkdirfix.sync(cache, path.dirname(bucket))
+  const stringified = JSON.stringify(entry)
+  fs.appendFileSync(bucket, `\n${hashEntry(stringified)}\t${stringified}`)
+  try {
+    fixOwner.chownr.sync(cache, bucket)
+  } catch (err) {
+    if (err.code !== 'ENOENT')
+      throw err
+  }
+  return formatEntry(cache, entry)
+}
+
+module.exports.find = find
+
+function find (cache, key) {
+  const bucket = bucketPath(cache, key)
+  return bucketEntries(bucket)
+    .then((entries) => {
+      return entries.reduce((latest, next) => {
+        if (next && next.key === key)
+          return formatEntry(cache, next)
+        else
+          return latest
+      }, null)
+    })
+    .catch((err) => {
+      if (err.code === 'ENOENT')
+        return null
+      else
+        throw err
+    })
+}
+
+module.exports.find.sync = findSync
+
+function findSync (cache, key) {
+  const bucket = bucketPath(cache, key)
+  try {
+    return bucketEntriesSync(bucket).reduce((latest, next) => {
+      if (next && next.key === key)
+        return formatEntry(cache, next)
+      else
+        return latest
+    }, null)
+  } catch (err) {
+    if (err.code === 'ENOENT')
+      return null
+    else
+      throw err
+  }
+}
+
+module.exports.delete = del
+
+function del (cache, key, opts = {}) {
+  if (!opts.removeFully)
+    return insert(cache, key, null, opts)
+
+  const bucket = bucketPath(cache, key)
+  return rimraf(bucket)
+}
+
+module.exports.delete.sync = delSync
+
+function delSync (cache, key, opts = {}) {
+  if (!opts.removeFully)
+    return insertSync(cache, key, null, opts)
+
+  const bucket = bucketPath(cache, key)
+  return rimraf.sync(bucket)
+}
+
+module.exports.lsStream = lsStream
+
+function lsStream (cache) {
+  const indexDir = bucketDir(cache)
+  const stream = new Minipass({ objectMode: true })
+
+  readdirOrEmpty(indexDir).then(buckets => Promise.all(
+    buckets.map(bucket => {
+      const bucketPath = path.join(indexDir, bucket)
+      return readdirOrEmpty(bucketPath).then(subbuckets => Promise.all(
+        subbuckets.map(subbucket => {
+          const subbucketPath = path.join(bucketPath, subbucket)
+
+          // "/cachename/<bucket 0xFF>/<bucket 0xFF>./*"
+          return readdirOrEmpty(subbucketPath).then(entries => Promise.all(
+            entries.map(entry => {
+              const entryPath = path.join(subbucketPath, entry)
+              return bucketEntries(entryPath).then(entries =>
+                // using a Map here prevents duplicate keys from
+                // showing up twice, I guess?
+                entries.reduce((acc, entry) => {
+                  acc.set(entry.key, entry)
+                  return acc
+                }, new Map())
+              ).then(reduced => {
+                // reduced is a map of key => entry
+                for (const entry of reduced.values()) {
+                  const formatted = formatEntry(cache, entry)
+                  if (formatted)
+                    stream.write(formatted)
+                }
+              }).catch(err => {
+                if (err.code === 'ENOENT')
+                  return undefined
+                throw err
+              })
+            })
+          ))
+        })
+      ))
+    })
+  ))
+    .then(
+      () => stream.end(),
+      err => stream.emit('error', err)
+    )
+
+  return stream
+}
+
+module.exports.ls = ls
+
+function ls (cache) {
+  return lsStream(cache).collect().then(entries =>
+    entries.reduce((acc, xs) => {
+      acc[xs.key] = xs
+      return acc
+    }, {})
+  )
+}
+
+module.exports.bucketEntries = bucketEntries
+
+function bucketEntries (bucket, filter) {
+  return readFile(bucket, 'utf8').then((data) => _bucketEntries(data, filter))
+}
+
+module.exports.bucketEntries.sync = bucketEntriesSync
+
+function bucketEntriesSync (bucket, filter) {
+  const data = fs.readFileSync(bucket, 'utf8')
+  return _bucketEntries(data, filter)
+}
+
+function _bucketEntries (data, filter) {
+  const entries = []
+  data.split('\n').forEach((entry) => {
+    if (!entry)
+      return
+
+    const pieces = entry.split('\t')
+    if (!pieces[1] || hashEntry(pieces[1]) !== pieces[0]) {
+      // Hash is no good! Corruption or malice? Doesn't matter!
+      // EJECT EJECT
+      return
+    }
+    let obj
+    try {
+      obj = JSON.parse(pieces[1])
+    } catch (e) {
+      // Entry is corrupted!
+      return
+    }
+    if (obj)
+      entries.push(obj)
+  })
+  return entries
+}
+
+module.exports.bucketDir = bucketDir
+
+function bucketDir (cache) {
+  return path.join(cache, `index-v${indexV}`)
+}
+
+module.exports.bucketPath = bucketPath
+
+function bucketPath (cache, key) {
+  const hashed = hashKey(key)
+  return path.join.apply(
+    path,
+    [bucketDir(cache)].concat(hashToSegments(hashed))
+  )
+}
+
+module.exports.hashKey = hashKey
+
+function hashKey (key) {
+  return hash(key, 'sha256')
+}
+
+module.exports.hashEntry = hashEntry
+
+function hashEntry (str) {
+  return hash(str, 'sha1')
+}
+
+function hash (str, digest) {
+  return crypto
+    .createHash(digest)
+    .update(str)
+    .digest('hex')
+}
+
+function formatEntry (cache, entry, keepAll) {
+  // Treat null digests as deletions. They'll shadow any previous entries.
+  if (!entry.integrity && !keepAll)
+    return null
+
+  return {
+    key: entry.key,
+    integrity: entry.integrity,
+    path: entry.integrity ? contentPath(cache, entry.integrity) : undefined,
+    size: entry.size,
+    time: entry.time,
+    metadata: entry.metadata,
+  }
+}
+
+function readdirOrEmpty (dir) {
+  return readdir(dir).catch((err) => {
+    if (err.code === 'ENOENT' || err.code === 'ENOTDIR')
+      return []
+
+    throw err
+  })
+}
diff --git a/node_modules/cacache/lib/memoization.js b/node_modules/cacache/lib/memoization.js
new file mode 100644
index 0000000..d5465f3
--- /dev/null
+++ b/node_modules/cacache/lib/memoization.js
@@ -0,0 +1,73 @@
+'use strict'
+
+const LRU = require('lru-cache')
+
+const MAX_SIZE = 50 * 1024 * 1024 // 50MB
+const MAX_AGE = 3 * 60 * 1000
+
+const MEMOIZED = new LRU({
+  max: MAX_SIZE,
+  maxAge: MAX_AGE,
+  length: (entry, key) => key.startsWith('key:') ? entry.data.length : entry.length,
+})
+
+module.exports.clearMemoized = clearMemoized
+
+function clearMemoized () {
+  const old = {}
+  MEMOIZED.forEach((v, k) => {
+    old[k] = v
+  })
+  MEMOIZED.reset()
+  return old
+}
+
+module.exports.put = put
+
+function put (cache, entry, data, opts) {
+  pickMem(opts).set(`key:${cache}:${entry.key}`, { entry, data })
+  putDigest(cache, entry.integrity, data, opts)
+}
+
+module.exports.put.byDigest = putDigest
+
+function putDigest (cache, integrity, data, opts) {
+  pickMem(opts).set(`digest:${cache}:${integrity}`, data)
+}
+
+module.exports.get = get
+
+function get (cache, key, opts) {
+  return pickMem(opts).get(`key:${cache}:${key}`)
+}
+
+module.exports.get.byDigest = getDigest
+
+function getDigest (cache, integrity, opts) {
+  return pickMem(opts).get(`digest:${cache}:${integrity}`)
+}
+
+class ObjProxy {
+  constructor (obj) {
+    this.obj = obj
+  }
+
+  get (key) {
+    return this.obj[key]
+  }
+
+  set (key, val) {
+    this.obj[key] = val
+  }
+}
+
+function pickMem (opts) {
+  if (!opts || !opts.memoize)
+    return MEMOIZED
+  else if (opts.memoize.get && opts.memoize.set)
+    return opts.memoize
+  else if (typeof opts.memoize === 'object')
+    return new ObjProxy(opts.memoize)
+  else
+    return MEMOIZED
+}
diff --git a/node_modules/cacache/lib/util/disposer.js b/node_modules/cacache/lib/util/disposer.js
new file mode 100644
index 0000000..aa8aed5
--- /dev/null
+++ b/node_modules/cacache/lib/util/disposer.js
@@ -0,0 +1,30 @@
+'use strict'
+
+module.exports.disposer = disposer
+
+function disposer (creatorFn, disposerFn, fn) {
+  const runDisposer = (resource, result, shouldThrow = false) => {
+    return disposerFn(resource)
+      .then(
+        // disposer resolved, do something with original fn's promise
+        () => {
+          if (shouldThrow)
+            throw result
+
+          return result
+        },
+        // Disposer fn failed, crash process
+        (err) => {
+          throw err
+          // Or process.exit?
+        })
+  }
+
+  return creatorFn
+    .then((resource) => {
+      // fn(resource) can throw, so wrap in a promise here
+      return Promise.resolve().then(() => fn(resource))
+        .then((result) => runDisposer(resource, result))
+        .catch((err) => runDisposer(resource, err, true))
+    })
+}
diff --git a/node_modules/cacache/lib/util/fix-owner.js b/node_modules/cacache/lib/util/fix-owner.js
new file mode 100644
index 0000000..90ffece
--- /dev/null
+++ b/node_modules/cacache/lib/util/fix-owner.js
@@ -0,0 +1,142 @@
+'use strict'
+
+const util = require('util')
+
+const chownr = util.promisify(require('chownr'))
+const mkdirp = require('mkdirp')
+const inflight = require('promise-inflight')
+const inferOwner = require('infer-owner')
+
+// Memoize getuid()/getgid() calls.
+// patch process.setuid/setgid to invalidate cached value on change
+const self = { uid: null, gid: null }
+const getSelf = () => {
+  if (typeof self.uid !== 'number') {
+    self.uid = process.getuid()
+    const setuid = process.setuid
+    process.setuid = (uid) => {
+      self.uid = null
+      process.setuid = setuid
+      return process.setuid(uid)
+    }
+  }
+  if (typeof self.gid !== 'number') {
+    self.gid = process.getgid()
+    const setgid = process.setgid
+    process.setgid = (gid) => {
+      self.gid = null
+      process.setgid = setgid
+      return process.setgid(gid)
+    }
+  }
+}
+
+module.exports.chownr = fixOwner
+
+function fixOwner (cache, filepath) {
+  if (!process.getuid) {
+    // This platform doesn't need ownership fixing
+    return Promise.resolve()
+  }
+
+  getSelf()
+  if (self.uid !== 0) {
+    // almost certainly can't chown anyway
+    return Promise.resolve()
+  }
+
+  return Promise.resolve(inferOwner(cache)).then((owner) => {
+    const { uid, gid } = owner
+
+    // No need to override if it's already what we used.
+    if (self.uid === uid && self.gid === gid)
+      return
+
+    return inflight('fixOwner: fixing ownership on ' + filepath, () =>
+      chownr(
+        filepath,
+        typeof uid === 'number' ? uid : self.uid,
+        typeof gid === 'number' ? gid : self.gid
+      ).catch((err) => {
+        if (err.code === 'ENOENT')
+          return null
+
+        throw err
+      })
+    )
+  })
+}
+
+module.exports.chownr.sync = fixOwnerSync
+
+function fixOwnerSync (cache, filepath) {
+  if (!process.getuid) {
+    // This platform doesn't need ownership fixing
+    return
+  }
+  const { uid, gid } = inferOwner.sync(cache)
+  getSelf()
+  if (self.uid !== 0) {
+    // almost certainly can't chown anyway
+    return
+  }
+
+  if (self.uid === uid && self.gid === gid) {
+    // No need to override if it's already what we used.
+    return
+  }
+  try {
+    chownr.sync(
+      filepath,
+      typeof uid === 'number' ? uid : self.uid,
+      typeof gid === 'number' ? gid : self.gid
+    )
+  } catch (err) {
+    // only catch ENOENT, any other error is a problem.
+    if (err.code === 'ENOENT')
+      return null
+
+    throw err
+  }
+}
+
+module.exports.mkdirfix = mkdirfix
+
+function mkdirfix (cache, p, cb) {
+  // we have to infer the owner _before_ making the directory, even though
+  // we aren't going to use the results, since the cache itself might not
+  // exist yet.  If we mkdirp it, then our current uid/gid will be assumed
+  // to be correct if it creates the cache folder in the process.
+  return Promise.resolve(inferOwner(cache)).then(() => {
+    return mkdirp(p)
+      .then((made) => {
+        if (made)
+          return fixOwner(cache, made).then(() => made)
+      })
+      .catch((err) => {
+        if (err.code === 'EEXIST')
+          return fixOwner(cache, p).then(() => null)
+
+        throw err
+      })
+  })
+}
+
+module.exports.mkdirfix.sync = mkdirfixSync
+
+function mkdirfixSync (cache, p) {
+  try {
+    inferOwner.sync(cache)
+    const made = mkdirp.sync(p)
+    if (made) {
+      fixOwnerSync(cache, made)
+      return made
+    }
+  } catch (err) {
+    if (err.code === 'EEXIST') {
+      fixOwnerSync(cache, p)
+      return null
+    } else
+      throw err
+  }
+}
diff --git a/node_modules/cacache/lib/util/hash-to-segments.js b/node_modules/cacache/lib/util/hash-to-segments.js
new file mode 100644
index 0000000..445599b
--- /dev/null
+++ b/node_modules/cacache/lib/util/hash-to-segments.js
@@ -0,0 +1,7 @@
+'use strict'
+
+module.exports = hashToSegments
+
+function hashToSegments (hash) {
+  return [hash.slice(0, 2), hash.slice(2, 4), hash.slice(4)]
+}
diff --git a/node_modules/cacache/lib/util/move-file.js b/node_modules/cacache/lib/util/move-file.js
new file mode 100644
index 0000000..c3f9e35
--- /dev/null
+++ b/node_modules/cacache/lib/util/move-file.js
@@ -0,0 +1,67 @@
+'use strict'
+
+const fs = require('fs')
+const util = require('util')
+const chmod = util.promisify(fs.chmod)
+const unlink = util.promisify(fs.unlink)
+const stat = util.promisify(fs.stat)
+const move = require('@npmcli/move-file')
+const pinflight = require('promise-inflight')
+
+module.exports = moveFile
+
+function moveFile (src, dest) {
+  const isWindows = global.__CACACHE_TEST_FAKE_WINDOWS__ ||
+    process.platform === 'win32'
+
+  // This isn't quite an fs.rename -- the assumption is that
+  // if `dest` already exists, and we get certain errors while
+  // trying to move it, we should just not bother.
+  //
+  // In the case of cache corruption, users will receive an
+  // EINTEGRITY error elsewhere, and can remove the offending
+  // content their own way.
+  //
+  // Note that, as the name suggests, this strictly only supports file moves.
+  return new Promise((resolve, reject) => {
+    fs.link(src, dest, (err) => {
+      if (err) {
+        if (isWindows && err.code === 'EPERM') {
+          // XXX This is a really weird way to handle this situation, as it
+          // results in the src file being deleted even though the dest
+          // might not exist.  Since we pretty much always write files to
+          // deterministic locations based on content hash, this is likely
+          // ok (or at worst, just ends in a future cache miss).  But it would
+          // be worth investigating at some time in the future if this is
+          // really what we want to do here.
+          return resolve()
+        } else if (err.code === 'EEXIST' || err.code === 'EBUSY') {
+          // file already exists, so whatever
+          return resolve()
+        } else
+          return reject(err)
+      } else
+        return resolve()
+    })
+  })
+    .then(() => {
+      // content should never change for any reason, so make it read-only
+      return Promise.all([
+        unlink(src),
+        !isWindows && chmod(dest, '0444'),
+      ])
+    })
+    .catch(() => {
+      return pinflight('cacache-move-file:' + dest, () => {
+        return stat(dest).catch((err) => {
+          if (err.code !== 'ENOENT') {
+            // Something else is wrong here. Bail bail bail
+            throw err
+          }
+          // file doesn't already exist! let's try a rename -> copy fallback
+          // only delete if it successfully copies
+          return move(src, dest)
+        })
+      })
+    })
+}
diff --git a/node_modules/cacache/lib/util/tmp.js b/node_modules/cacache/lib/util/tmp.js
new file mode 100644
index 0000000..0a5a50e
--- /dev/null
+++ b/node_modules/cacache/lib/util/tmp.js
@@ -0,0 +1,35 @@
+'use strict'
+
+const fs = require('@npmcli/fs')
+
+const fixOwner = require('./fix-owner')
+const path = require('path')
+
+module.exports.mkdir = mktmpdir
+
+function mktmpdir (cache, opts = {}) {
+  const { tmpPrefix } = opts
+  const tmpDir = path.join(cache, 'tmp')
+  return fs.mkdir(tmpDir, { recursive: true, owner: 'inherit' })
+    .then(() => {
+      // do not use path.join(), it drops the trailing / if tmpPrefix is unset
+      const target = `${tmpDir}${path.sep}${tmpPrefix || ''}`
+      return fs.mkdtemp(target, { owner: 'inherit' })
+    })
+}
+
+module.exports.withTmp = withTmp
+
+function withTmp (cache, opts, cb) {
+  if (!cb) {
+    cb = opts
+    opts = {}
+  }
+  return fs.withTempDir(path.join(cache, 'tmp'), cb, opts)
+}
+
+module.exports.fix = fixtmpdir
+
+function fixtmpdir (cache) {
+  return fixOwner(cache, path.join(cache, 'tmp'))
+}
diff --git a/node_modules/cacache/lib/verify.js b/node_modules/cacache/lib/verify.js
new file mode 100644
index 0000000..e9d679e
--- /dev/null
+++ b/node_modules/cacache/lib/verify.js
@@ -0,0 +1,287 @@
+'use strict'
+
+const util = require('util')
+
+const pMap = require('p-map')
+const contentPath = require('./content/path')
+const fixOwner = require('./util/fix-owner')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const glob = util.promisify(require('glob'))
+const index = require('./entry-index')
+const path = require('path')
+const rimraf = util.promisify(require('rimraf'))
+const ssri = require('ssri')
+
+const hasOwnProperty = (obj, key) =>
+  Object.prototype.hasOwnProperty.call(obj, key)
+
+const stat = util.promisify(fs.stat)
+const truncate = util.promisify(fs.truncate)
+const writeFile = util.promisify(fs.writeFile)
+const readFile = util.promisify(fs.readFile)
+
+const verifyOpts = (opts) => ({
+  concurrency: 20,
+  log: { silly () {} },
+  ...opts,
+})
+
+module.exports = verify
+
+function verify (cache, opts) {
+  opts = verifyOpts(opts)
+  opts.log.silly('verify', 'verifying cache at', cache)
+
+  const steps = [
+    markStartTime,
+    fixPerms,
+    garbageCollect,
+    rebuildIndex,
+    cleanTmp,
+    writeVerifile,
+    markEndTime,
+  ]
+
+  return steps
+    .reduce((promise, step, i) => {
+      const label = step.name
+      const start = new Date()
+      return promise.then((stats) => {
+        return step(cache, opts).then((s) => {
+          s &&
+            Object.keys(s).forEach((k) => {
+              stats[k] = s[k]
+            })
+          const end = new Date()
+          if (!stats.runTime)
+            stats.runTime = {}
+
+          stats.runTime[label] = end - start
+          return Promise.resolve(stats)
+        })
+      })
+    }, Promise.resolve({}))
+    .then((stats) => {
+      stats.runTime.total = stats.endTime - stats.startTime
+      opts.log.silly(
+        'verify',
+        'verification finished for',
+        cache,
+        'in',
+        `${stats.runTime.total}ms`
+      )
+      return stats
+    })
+}
+
+function markStartTime (cache, opts) {
+  return Promise.resolve({ startTime: new Date() })
+}
+
+function markEndTime (cache, opts) {
+  return Promise.resolve({ endTime: new Date() })
+}
+
+function fixPerms (cache, opts) {
+  opts.log.silly('verify', 'fixing cache permissions')
+  return fixOwner
+    .mkdirfix(cache, cache)
+    .then(() => {
+      // TODO - fix file permissions too
+      return fixOwner.chownr(cache, cache)
+    })
+    .then(() => null)
+}
+
+// Implements a naive mark-and-sweep tracing garbage collector.
+//
+// The algorithm is basically as follows:
+// 1. Read (and filter) all index entries ("pointers")
+// 2. Mark each integrity value as "live"
+// 3. Read entire filesystem tree in `content-vX/` dir
+// 4. If content is live, verify its checksum and delete it if it fails
+// 5. If content is not marked as live, rimraf it.
+//
+function garbageCollect (cache, opts) {
+  opts.log.silly('verify', 'garbage collecting content')
+  const indexStream = index.lsStream(cache)
+  const liveContent = new Set()
+  indexStream.on('data', (entry) => {
+    if (opts.filter && !opts.filter(entry))
+      return
+
+    liveContent.add(entry.integrity.toString())
+  })
+  return new Promise((resolve, reject) => {
+    indexStream.on('end', resolve).on('error', reject)
+  }).then(() => {
+    const contentDir = contentPath.contentDir(cache)
+    return glob(path.join(contentDir, '**'), {
+      follow: false,
+      nodir: true,
+      nosort: true,
+    }).then((files) => {
+      return Promise.resolve({
+        verifiedContent: 0,
+        reclaimedCount: 0,
+        reclaimedSize: 0,
+        badContentCount: 0,
+        keptSize: 0,
+      }).then((stats) =>
+        pMap(
+          files,
+          (f) => {
+            const split = f.split(/[/\\]/)
+            const digest = split.slice(split.length - 3).join('')
+            const algo = split[split.length - 4]
+            const integrity = ssri.fromHex(digest, algo)
+            if (liveContent.has(integrity.toString())) {
+              return verifyContent(f, integrity).then((info) => {
+                if (!info.valid) {
+                  stats.reclaimedCount++
+                  stats.badContentCount++
+                  stats.reclaimedSize += info.size
+                } else {
+                  stats.verifiedContent++
+                  stats.keptSize += info.size
+                }
+                return stats
+              })
+            } else {
+              // No entries refer to this content. We can delete.
+              stats.reclaimedCount++
+              return stat(f).then((s) => {
+                return rimraf(f).then(() => {
+                  stats.reclaimedSize += s.size
+                  return stats
+                })
+              })
+            }
+          },
+          { concurrency: opts.concurrency }
+        ).then(() => stats)
+      )
+    })
+  })
+}
+
+function verifyContent (filepath, sri) {
+  return stat(filepath)
+    .then((s) => {
+      const contentInfo = {
+        size: s.size,
+        valid: true,
+      }
+      return ssri
+        .checkStream(new fsm.ReadStream(filepath), sri)
+        .catch((err) => {
+          if (err.code !== 'EINTEGRITY')
+            throw err
+
+          return rimraf(filepath).then(() => {
+            contentInfo.valid = false
+          })
+        })
+        .then(() => contentInfo)
+    })
+    .catch((err) => {
+      if (err.code === 'ENOENT')
+        return { size: 0, valid: false }
+
+      throw err
+    })
+}
+
+function rebuildIndex (cache, opts) {
+  opts.log.silly('verify', 'rebuilding index')
+  return index.ls(cache).then((entries) => {
+    const stats = {
+      missingContent: 0,
+      rejectedEntries: 0,
+      totalEntries: 0,
+    }
+    const buckets = {}
+    for (const k in entries) {
+      /* istanbul ignore else */
+      if (hasOwnProperty(entries, k)) {
+        const hashed = index.hashKey(k)
+        const entry = entries[k]
+        const excluded = opts.filter && !opts.filter(entry)
+        excluded && stats.rejectedEntries++
+        if (buckets[hashed] && !excluded)
+          buckets[hashed].push(entry)
+        else if (buckets[hashed] && excluded) {
+          // skip
+        } else if (excluded) {
+          buckets[hashed] = []
+          buckets[hashed]._path = index.bucketPath(cache, k)
+        } else {
+          buckets[hashed] = [entry]
+          buckets[hashed]._path = index.bucketPath(cache, k)
+        }
+      }
+    }
+    return pMap(
+      Object.keys(buckets),
+      (key) => {
+        return rebuildBucket(cache, buckets[key], stats, opts)
+      },
+      { concurrency: opts.concurrency }
+    ).then(() => stats)
+  })
+}
+
+function rebuildBucket (cache, bucket, stats, opts) {
+  return truncate(bucket._path).then(() => {
+    // This needs to be serialized because cacache explicitly
+    // lets very racy bucket conflicts clobber each other.
+    return bucket.reduce((promise, entry) => {
+      return promise.then(() => {
+        const content = contentPath(cache, entry.integrity)
+        return stat(content)
+          .then(() => {
+            return index
+              .insert(cache, entry.key, entry.integrity, {
+                metadata: entry.metadata,
+                size: entry.size,
+              })
+              .then(() => {
+                stats.totalEntries++
+              })
+          })
+          .catch((err) => {
+            if (err.code === 'ENOENT') {
+              stats.rejectedEntries++
+              stats.missingContent++
+              return
+            }
+            throw err
+          })
+      })
+    }, Promise.resolve())
+  })
+}
+
+function cleanTmp (cache, opts) {
+  opts.log.silly('verify', 'cleaning tmp directory')
+  return rimraf(path.join(cache, 'tmp'))
+}
+
+function writeVerifile (cache, opts) {
+  const verifile = path.join(cache, '_lastverified')
+  opts.log.silly('verify', 'writing verifile to ' + verifile)
+  try {
+    return writeFile(verifile, '' + +new Date())
+  } finally {
+    fixOwner.chownr.sync(cache, verifile)
+  }
+}
+
+module.exports.lastRun = lastRun
+
+function lastRun (cache) {
+  return readFile(path.join(cache, '_lastverified'), 'utf8').then(
+    (data) => new Date(+data)
+  )
+}
diff --git a/node_modules/cacache/ls.js b/node_modules/cacache/ls.js
new file mode 100644
index 0000000..6006c99
--- /dev/null
+++ b/node_modules/cacache/ls.js
@@ -0,0 +1,6 @@
+'use strict'
+
+const index = require('./lib/entry-index')
+
+module.exports = index.ls
+module.exports.stream = index.lsStream
diff --git a/node_modules/cacache/package.json b/node_modules/cacache/package.json
new file mode 100644
index 0000000..6cb4140
--- /dev/null
+++ b/node_modules/cacache/package.json
@@ -0,0 +1,80 @@
+{
+  "name": "cacache",
+  "version": "15.3.0",
+  "cache-version": {
+    "content": "2",
+    "index": "5"
+  },
+  "description": "Fast, fault-tolerant, cross-platform, disk-based, data-agnostic, content-addressable cache.",
+  "main": "index.js",
+  "files": [
+    "*.js",
+    "lib"
+  ],
+  "scripts": {
+    "benchmarks": "node test/benchmarks",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags",
+    "test": "tap",
+    "snap": "tap",
+    "coverage": "tap",
+    "test-docker": "docker run -it --rm --name pacotest -v \"$PWD\":/tmp -w /tmp node:latest npm test",
+    "lint": "npm run npmclilint -- \"*.*js\" \"lib/**/*.*js\" \"test/**/*.*js\"",
+    "npmclilint": "npmcli-lint",
+    "lintfix": "npm run lint -- --fix",
+    "postsnap": "npm run lintfix --"
+  },
+  "repository": "https://github.com/npm/cacache",
+  "keywords": [
+    "cache",
+    "caching",
+    "content-addressable",
+    "sri",
+    "sri hash",
+    "subresource integrity",
+    "cache",
+    "storage",
+    "store",
+    "file store",
+    "filesystem",
+    "disk cache",
+    "disk storage"
+  ],
+  "license": "ISC",
+  "dependencies": {
+    "@npmcli/fs": "^1.0.0",
+    "@npmcli/move-file": "^1.0.1",
+    "chownr": "^2.0.0",
+    "fs-minipass": "^2.0.0",
+    "glob": "^7.1.4",
+    "infer-owner": "^1.0.4",
+    "lru-cache": "^6.0.0",
+    "minipass": "^3.1.1",
+    "minipass-collect": "^1.0.2",
+    "minipass-flush": "^1.0.5",
+    "minipass-pipeline": "^1.2.2",
+    "mkdirp": "^1.0.3",
+    "p-map": "^4.0.0",
+    "promise-inflight": "^1.0.1",
+    "rimraf": "^3.0.2",
+    "ssri": "^8.0.1",
+    "tar": "^6.0.2",
+    "unique-filename": "^1.1.1"
+  },
+  "devDependencies": {
+    "@npmcli/lint": "^1.0.1",
+    "benchmark": "^2.1.4",
+    "chalk": "^4.0.0",
+    "require-inject": "^1.4.4",
+    "tacks": "^1.3.0",
+    "tap": "^15.0.9"
+  },
+  "tap": {
+    "100": true,
+    "test-regex": "test/[^/]*.js"
+  },
+  "engines": {
+    "node": ">= 10"
+  }
+}
diff --git a/node_modules/cacache/put.js b/node_modules/cacache/put.js
new file mode 100644
index 0000000..84e9562
--- /dev/null
+++ b/node_modules/cacache/put.js
@@ -0,0 +1,83 @@
+'use strict'
+
+const index = require('./lib/entry-index')
+const memo = require('./lib/memoization')
+const write = require('./lib/content/write')
+const Flush = require('minipass-flush')
+const { PassThrough } = require('minipass-collect')
+const Pipeline = require('minipass-pipeline')
+
+const putOpts = (opts) => ({
+  algorithms: ['sha512'],
+  ...opts,
+})
+
+module.exports = putData
+
+function putData (cache, key, data, opts = {}) {
+  const { memoize } = opts
+  opts = putOpts(opts)
+  return write(cache, data, opts).then((res) => {
+    return index
+      .insert(cache, key, res.integrity, { ...opts, size: res.size })
+      .then((entry) => {
+        if (memoize)
+          memo.put(cache, entry, data, opts)
+
+        return res.integrity
+      })
+  })
+}
+
+module.exports.stream = putStream
+
+function putStream (cache, key, opts = {}) {
+  const { memoize } = opts
+  opts = putOpts(opts)
+  let integrity
+  let size
+
+  let memoData
+  const pipeline = new Pipeline()
+  // first item in the pipeline is the memoizer, because we need
+  // that to end first and get the collected data.
+  if (memoize) {
+    const memoizer = new PassThrough().on('collect', data => {
+      memoData = data
+    })
+    pipeline.push(memoizer)
+  }
+
+  // contentStream is a write-only, not a passthrough
+  // no data comes out of it.
+  const contentStream = write.stream(cache, opts)
+    .on('integrity', (int) => {
+      integrity = int
+    })
+    .on('size', (s) => {
+      size = s
+    })
+
+  pipeline.push(contentStream)
+
+  // last but not least, we write the index and emit hash and size,
+  // and memoize if we're doing that
+  pipeline.push(new Flush({
+    flush () {
+      return index
+        .insert(cache, key, integrity, { ...opts, size })
+        .then((entry) => {
+          if (memoize && memoData)
+            memo.put(cache, entry, memoData, opts)
+
+          if (integrity)
+            pipeline.emit('integrity', integrity)
+
+          if (size)
+            pipeline.emit('size', size)
+        })
+    },
+  }))
+
+  return pipeline
+}
diff --git a/node_modules/cacache/rm.js b/node_modules/cacache/rm.js
new file mode 100644
index 0000000..f2ef6b1
--- /dev/null
+++ b/node_modules/cacache/rm.js
@@ -0,0 +1,31 @@
+'use strict'
+
+const util = require('util')
+
+const index = require('./lib/entry-index')
+const memo = require('./lib/memoization')
+const path = require('path')
+const rimraf = util.promisify(require('rimraf'))
+const rmContent = require('./lib/content/rm')
+
+module.exports = entry
+module.exports.entry = entry
+
+function entry (cache, key, opts) {
+  memo.clearMemoized()
+  return index.delete(cache, key, opts)
+}
+
+module.exports.content = content
+
+function content (cache, integrity) {
+  memo.clearMemoized()
+  return rmContent(cache, integrity)
+}
+
+module.exports.all = all
+
+function all (cache) {
+  memo.clearMemoized()
+  return rimraf(path.join(cache, '*(content-*|index-*)'))
+}
diff --git a/node_modules/cacache/verify.js b/node_modules/cacache/verify.js
new file mode 100644
index 0000000..db7763d
--- /dev/null
+++ b/node_modules/cacache/verify.js
@@ -0,0 +1,3 @@
+'use strict'
+
+module.exports = require('./lib/verify')
diff --git a/node_modules/chownr/LICENSE b/node_modules/chownr/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/chownr/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/chownr/README.md b/node_modules/chownr/README.md
new file mode 100644
index 0000000..70e9a54
--- /dev/null
+++ b/node_modules/chownr/README.md
@@ -0,0 +1,3 @@
+Like `chown -R`.
+
+Takes the same arguments as `fs.chown()`
diff --git a/node_modules/chownr/chownr.js b/node_modules/chownr/chownr.js
new file mode 100644
index 0000000..0d40932
--- /dev/null
+++ b/node_modules/chownr/chownr.js
@@ -0,0 +1,167 @@
+'use strict'
+const fs = require('fs')
+const path = require('path')
+
+/* istanbul ignore next */
+const LCHOWN = fs.lchown ? 'lchown' : 'chown'
+/* istanbul ignore next */
+const LCHOWNSYNC = fs.lchownSync ? 'lchownSync' : 'chownSync'
+
+/* istanbul ignore next */
+const needEISDIRHandled = fs.lchown &&
+  !process.version.match(/v1[1-9]+\./) &&
+  !process.version.match(/v10\.[6-9]/)
+
+const lchownSync = (path, uid, gid) => {
+  try {
+    return fs[LCHOWNSYNC](path, uid, gid)
+  } catch (er) {
+    if (er.code !== 'ENOENT')
+      throw er
+  }
+}
+
+/* istanbul ignore next */
+const chownSync = (path, uid, gid) => {
+  try {
+    return fs.chownSync(path, uid, gid)
+  } catch (er) {
+    if (er.code !== 'ENOENT')
+      throw er
+  }
+}
+
+/* istanbul ignore next */
+const handleEISDIR =
+  needEISDIRHandled ? (path, uid, gid, cb) => er => {
+    // Node prior to v10 had a very questionable implementation of
+    // fs.lchown, which would always try to call fs.open on a directory
+    // Fall back to fs.chown in those cases.
+    if (!er || er.code !== 'EISDIR')
+      cb(er)
+    else
+      fs.chown(path, uid, gid, cb)
+  }
+  : (_, __, ___, cb) => cb
+
+/* istanbul ignore next */
+const handleEISDirSync =
+  needEISDIRHandled ? (path, uid, gid) => {
+    try {
+      return lchownSync(path, uid, gid)
+    } catch (er) {
+      if (er.code !== 'EISDIR')
+        throw er
+      chownSync(path, uid, gid)
+    }
+  }
+  : (path, uid, gid) => lchownSync(path, uid, gid)
+
+// fs.readdir could only accept an options object as of node v6
+const nodeVersion = process.version
+let readdir = (path, options, cb) => fs.readdir(path, options, cb)
+let readdirSync = (path, options) => fs.readdirSync(path, options)
+/* istanbul ignore next */
+if (/^v4\./.test(nodeVersion))
+  readdir = (path, options, cb) => fs.readdir(path, cb)
+
+const chown = (cpath, uid, gid, cb) => {
+  fs[LCHOWN](cpath, uid, gid, handleEISDIR(cpath, uid, gid, er => {
+    // Skip ENOENT error
+    cb(er && er.code !== 'ENOENT' ? er : null)
+  }))
+}
+
+const chownrKid = (p, child, uid, gid, cb) => {
+  if (typeof child === 'string')
+    return fs.lstat(path.resolve(p, child), (er, stats) => {
+      // Skip ENOENT error
+      if (er)
+        return cb(er.code !== 'ENOENT' ? er : null)
+      stats.name = child
+      chownrKid(p, stats, uid, gid, cb)
+    })
+
+  if (child.isDirectory()) {
+    chownr(path.resolve(p, child.name), uid, gid, er => {
+      if (er)
+        return cb(er)
+      const cpath = path.resolve(p, child.name)
+      chown(cpath, uid, gid, cb)
+    })
+  } else {
+    const cpath = path.resolve(p, child.name)
+    chown(cpath, uid, gid, cb)
+  }
+}
+
+
+const chownr = (p, uid, gid, cb) => {
+  readdir(p, { withFileTypes: true }, (er, children) => {
+    // any error other than ENOTDIR or ENOTSUP means it's not readable,
+    // or doesn't exist.  give up.
+    if (er) {
+      if (er.code === 'ENOENT')
+        return cb()
+      else if (er.code !== 'ENOTDIR' && er.code !== 'ENOTSUP')
+        return cb(er)
+    }
+    if (er || !children.length)
+      return chown(p, uid, gid, cb)
+
+    let len = children.length
+    let errState = null
+    const then = er => {
+      if (errState)
+        return
+      if (er)
+        return cb(errState = er)
+      if (-- len === 0)
+        return chown(p, uid, gid, cb)
+    }
+
+    children.forEach(child => chownrKid(p, child, uid, gid, then))
+  })
+}
+
+const chownrKidSync = (p, child, uid, gid) => {
+  if (typeof child === 'string') {
+    try {
+      const stats = fs.lstatSync(path.resolve(p, child))
+      stats.name = child
+      child = stats
+    } catch (er) {
+      if (er.code === 'ENOENT')
+        return
+      else
+        throw er
+    }
+  }
+
+  if (child.isDirectory())
+    chownrSync(path.resolve(p, child.name), uid, gid)
+
+  handleEISDirSync(path.resolve(p, child.name), uid, gid)
+}
+
+const chownrSync = (p, uid, gid) => {
+  let children
+  try {
+    children = readdirSync(p, { withFileTypes: true })
+  } catch (er) {
+    if (er.code === 'ENOENT')
+      return
+    else if (er.code === 'ENOTDIR' || er.code === 'ENOTSUP')
+      return handleEISDirSync(p, uid, gid)
+    else
+      throw er
+  }
+
+  if (children && children.length)
+    children.forEach(child => chownrKidSync(p, child, uid, gid))
+
+  return handleEISDirSync(p, uid, gid)
+}
+
+module.exports = chownr
+chownr.sync = chownrSync
diff --git a/node_modules/chownr/package.json b/node_modules/chownr/package.json
new file mode 100644
index 0000000..5b0214c
--- /dev/null
+++ b/node_modules/chownr/package.json
@@ -0,0 +1,32 @@
+{
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "name": "chownr",
+  "description": "like `chown -R`",
+  "version": "2.0.0",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/isaacs/chownr.git"
+  },
+  "main": "chownr.js",
+  "files": [
+    "chownr.js"
+  ],
+  "devDependencies": {
+    "mkdirp": "0.3",
+    "rimraf": "^2.7.1",
+    "tap": "^14.10.6"
+  },
+  "tap": {
+    "check-coverage": true
+  },
+  "scripts": {
+    "test": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags"
+  },
+  "license": "ISC",
+  "engines": {
+    "node": ">=10"
+  }
+}
diff --git a/node_modules/clean-stack/index.d.ts b/node_modules/clean-stack/index.d.ts
new file mode 100644
index 0000000..ed58995
--- /dev/null
+++ b/node_modules/clean-stack/index.d.ts
@@ -0,0 +1,47 @@
+declare namespace cleanStack {
+	interface Options {
+		/**
+		Prettify the file paths in the stack:
+
+		`/Users/sindresorhus/dev/clean-stack/unicorn.js:2:15` → `~/dev/clean-stack/unicorn.js:2:15`
+
+		@default false
+		*/
+		readonly pretty?: boolean;
+	}
+}
+
+/**
+Clean up error stack traces. Removes the mostly unhelpful internal Node.js entries.
+
+@param stack - The `stack` property of an `Error`.
+
+@example
+```
+import cleanStack = require('clean-stack');
+
+const error = new Error('Missing unicorn');
+
+console.log(error.stack);
+
+// Error: Missing unicorn
+//     at Object.<anonymous> (/Users/sindresorhus/dev/clean-stack/unicorn.js:2:15)
+//     at Module._compile (module.js:409:26)
+//     at Object.Module._extensions..js (module.js:416:10)
+//     at Module.load (module.js:343:32)
+//     at Function.Module._load (module.js:300:12)
+//     at Function.Module.runMain (module.js:441:10)
+//     at startup (node.js:139:18)
+
+console.log(cleanStack(error.stack));
+
+// Error: Missing unicorn
+//     at Object.<anonymous> (/Users/sindresorhus/dev/clean-stack/unicorn.js:2:15)
+```
+*/
+declare function cleanStack(
+	stack: string,
+	options?: cleanStack.Options
+): string;
+
+export = cleanStack;
diff --git a/node_modules/clean-stack/index.js b/node_modules/clean-stack/index.js
new file mode 100644
index 0000000..8c1dcc4
--- /dev/null
+++ b/node_modules/clean-stack/index.js
@@ -0,0 +1,40 @@
+'use strict';
+const os = require('os');
+
+const extractPathRegex = /\s+at.*(?:\(|\s)(.*)\)?/;
+const pathRegex = /^(?:(?:(?:node|(?:internal\/[\w/]*|.*node_modules\/(?:babel-polyfill|pirates)\/.*)?\w+)\.js:\d+:\d+)|native)/;
+const homeDir = typeof os.homedir === 'undefined' ? '' : os.homedir();
+
+module.exports = (stack, options) => {
+	options = Object.assign({pretty: false}, options);
+
+	return stack.replace(/\\/g, '/')
+		.split('\n')
+		.filter(line => {
+			const pathMatches = line.match(extractPathRegex);
+			if (pathMatches === null || !pathMatches[1]) {
+				return true;
+			}
+
+			const match = pathMatches[1];
+
+			// Electron
+			if (
+				match.includes('.app/Contents/Resources/electron.asar') ||
+				match.includes('.app/Contents/Resources/default_app.asar')
+			) {
+				return false;
+			}
+
+			return !pathRegex.test(match);
+		})
+		.filter(line => line.trim() !== '')
+		.map(line => {
+			if (options.pretty) {
+				return line.replace(extractPathRegex, (m, p1) => m.replace(p1, p1.replace(homeDir, '~')));
+			}
+
+			return line;
+		})
+		.join('\n');
+};
diff --git a/node_modules/clean-stack/license b/node_modules/clean-stack/license
new file mode 100644
index 0000000..e7af2f7
--- /dev/null
+++ b/node_modules/clean-stack/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/clean-stack/package.json b/node_modules/clean-stack/package.json
new file mode 100644
index 0000000..719fdff
--- /dev/null
+++ b/node_modules/clean-stack/package.json
@@ -0,0 +1,39 @@
+{
+	"name": "clean-stack",
+	"version": "2.2.0",
+	"description": "Clean up error stack traces",
+	"license": "MIT",
+	"repository": "sindresorhus/clean-stack",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=6"
+	},
+	"scripts": {
+		"test": "xo && ava && tsd"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"clean",
+		"stack",
+		"trace",
+		"traces",
+		"error",
+		"err",
+		"electron"
+	],
+	"devDependencies": {
+		"ava": "^1.4.1",
+		"tsd": "^0.7.2",
+		"xo": "^0.24.0"
+	},
+	"browser": {
+		"os": false
+	}
+}
diff --git a/node_modules/clean-stack/readme.md b/node_modules/clean-stack/readme.md
new file mode 100644
index 0000000..8d44160
--- /dev/null
+++ b/node_modules/clean-stack/readme.md
@@ -0,0 +1,76 @@
+# clean-stack [![Build Status](https://travis-ci.org/sindresorhus/clean-stack.svg?branch=master)](https://travis-ci.org/sindresorhus/clean-stack)
+
+> Clean up error stack traces
+
+Removes the mostly unhelpful internal Node.js entries.
+
+Also works in Electron.
+
+
+## Install
+
+```
+$ npm install clean-stack
+```
+
+
+## Usage
+
+```js
+const cleanStack = require('clean-stack');
+
+const error = new Error('Missing unicorn');
+
+console.log(error.stack);
+/*
+Error: Missing unicorn
+    at Object.<anonymous> (/Users/sindresorhus/dev/clean-stack/unicorn.js:2:15)
+    at Module._compile (module.js:409:26)
+    at Object.Module._extensions..js (module.js:416:10)
+    at Module.load (module.js:343:32)
+    at Function.Module._load (module.js:300:12)
+    at Function.Module.runMain (module.js:441:10)
+    at startup (node.js:139:18)
+*/
+
+console.log(cleanStack(error.stack));
+/*
+Error: Missing unicorn
+    at Object.<anonymous> (/Users/sindresorhus/dev/clean-stack/unicorn.js:2:15)
+*/
+```
+
+
+## API
+
+### cleanStack(stack, [options])
+
+#### stack
+
+Type: `string`
+
+The `stack` property of an `Error`.
+
+#### options
+
+Type: `Object`
+
+##### pretty
+
+Type: `boolean`<br>
+Default: `false`
+
+Prettify the file paths in the stack:
+
+`/Users/sindresorhus/dev/clean-stack/unicorn.js:2:15` → `~/dev/clean-stack/unicorn.js:2:15`
+
+
+## Related
+
+- [extrack-stack](https://github.com/sindresorhus/extract-stack) - Extract the actual stack of an error
+- [stack-utils](https://github.com/tapjs/stack-utils) - Captures and cleans stack traces
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/node_modules/color-support/LICENSE b/node_modules/color-support/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/color-support/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/color-support/README.md b/node_modules/color-support/README.md
new file mode 100644
index 0000000..f89aa17
--- /dev/null
+++ b/node_modules/color-support/README.md
@@ -0,0 +1,129 @@
+# color-support
+
+A module which will endeavor to guess your terminal's level of color
+support.
+
+[![Build Status](https://travis-ci.org/isaacs/color-support.svg?branch=master)](https://travis-ci.org/isaacs/color-support) [![Coverage Status](https://coveralls.io/repos/github/isaacs/color-support/badge.svg?branch=master)](https://coveralls.io/github/isaacs/color-support?branch=master)
+
+This is similar to `supports-color`, but it does not read
+`process.argv`.
+
+1. If not in a node environment, not supported.
+
+2. If stdout is not a TTY, not supported, unless the `ignoreTTY`
+   option is set.
+
+3. If the `TERM` environ is `dumb`, not supported, unless the
+   `ignoreDumb` option is set.
+
+4. If on Windows, then support 16 colors.
+
+5. If using Tmux, then support 256 colors.
+
+7. Handle continuous-integration servers.  If `CI` or
+   `TEAMCITY_VERSION` are set in the environment, and `TRAVIS` is not
+   set, then color is not supported, unless `ignoreCI` option is set.
+
+6. Guess based on the `TERM_PROGRAM` environ.  These terminals support
+   16m colors:
+
+    - `iTerm.app` version 3.x supports 16m colors, below support 256
+    - `MacTerm` supports 16m colors
+    - `Apple_Terminal` supports 256 colors
+    - Have more things that belong on this list?  Send a PR!
+
+8. Make a guess based on the `TERM` environment variable.  Any
+   `xterm-256color` will get 256 colors.  Any screen, xterm, vt100,
+   color, ansi, cygwin, or linux `TERM` will get 16 colors.
+
+9. If `COLORTERM` environment variable is set, then support 16 colors.
+
+10. At this point, we assume that color is not supported.
+
+## USAGE
+
+```javascript
+var testColorSupport = require('color-support')
+var colorSupport = testColorSupport(/* options object */)
+
+if (!colorSupport) {
+  console.log('color is not supported')
+} else if (colorSupport.has16m) {
+  console.log('\x1b[38;2;102;194;255m16m colors\x1b[0m')
+} else if (colorSupport.has256) {
+  console.log('\x1b[38;5;119m256 colors\x1b[0m')
+} else if (colorSupport.hasBasic) {
+  console.log('\x1b[31mbasic colors\x1b[0m')
+} else {
+  console.log('this is impossible, but colors are not supported')
+}
+```
+
+If you don't have any options to set, you can also just look at the
+flags which will all be set on the test function itself.  (Of course,
+this doesn't return a falsey value when colors aren't supported, and
+doesn't allow you to set options.)
+
+```javascript
+var colorSupport = require('color-support')
+
+if (colorSupport.has16m) {
+  console.log('\x1b[38;2;102;194;255m16m colors\x1b[0m')
+} else if (colorSupport.has256) {
+  console.log('\x1b[38;5;119m256 colors\x1b[0m')
+} else if (colorSupport.hasBasic) {
+  console.log('\x1b[31mbasic colors\x1b[0m')
+} else {
+  console.log('colors are not supported')
+}
+```
+
+## Options
+
+You can pass in the following options.
+
+* ignoreTTY - default false.  Ignore the `isTTY` check.
+* ignoreDumb - default false.  Ignore `TERM=dumb` environ check.
+* ignoreCI - default false.  Ignore `CI` environ check.
+* env - Object for environment vars. Defaults to `process.env`.
+* stream - Stream for `isTTY` check. Defaults to `process.stdout`.
+* term - String for `TERM` checking. Defaults to `env.TERM`.
+* alwaysReturn - default false.  Return an object when colors aren't
+  supported (instead of returning `false`).
+* level - A number from 0 to 3.  This will return a result for the
+  specified level.  This is useful if you want to be able to set the
+  color support level explicitly as a number in an environment
+  variable or config, but then use the object flags in your program.
+  Except for `alwaysReturn` to return an object for level 0, all other
+  options are ignored, since no checking is done if a level is
+  explicitly set.
+
+## Return Value
+
+If no color support is available, then `false` is returned by default,
+unless the `alwaysReturn` flag is set to `true`.  This is so that the
+simple question of "can I use colors or not" can treat any truthy
+return as "yes".
+
+Otherwise, the return object has the following fields:
+
+* `level` - A number from 0 to 3
+    * `0` - No color support
+    * `1` - Basic (16) color support
+    * `2` - 256 color support
+    * `3` - 16 million (true) color support
+* `hasBasic` - Boolean
+* `has256` - Boolean
+* `has16m` - Boolean
+
+## CLI
+
+You can run the `color-support` bin from the command line which will
+just dump the values as this module calculates them in whatever env
+it's run.  It takes no command line arguments.
+
+## Credits
+
+This is a spiritual, if not actual, fork of
+[supports-color](http://npm.im/supports-color) by the ever prolific
+[Sindre Sorhus](http://npm.im/~sindresorhus).
diff --git a/node_modules/color-support/bin.js b/node_modules/color-support/bin.js
new file mode 100644
index 0000000..3c0a967
--- /dev/null
+++ b/node_modules/color-support/bin.js
@@ -0,0 +1,3 @@
+#!/usr/bin/env node
+var colorSupport = require('./')({alwaysReturn: true })
+console.log(JSON.stringify(colorSupport, null, 2))
diff --git a/node_modules/color-support/browser.js b/node_modules/color-support/browser.js
new file mode 100644
index 0000000..ab5c663
--- /dev/null
+++ b/node_modules/color-support/browser.js
@@ -0,0 +1,14 @@
+module.exports = colorSupport({ alwaysReturn: true }, colorSupport)
+
+function colorSupport(options, obj) {
+  obj = obj || {}
+  options = options || {}
+  obj.level = 0
+  obj.hasBasic = false
+  obj.has256 = false
+  obj.has16m = false
+  if (!options.alwaysReturn) {
+    return false
+  }
+  return obj
+}
diff --git a/node_modules/color-support/index.js b/node_modules/color-support/index.js
new file mode 100644
index 0000000..6b6f3b2
--- /dev/null
+++ b/node_modules/color-support/index.js
@@ -0,0 +1,134 @@
+// call it on itself so we can test the export val for basic stuff
+module.exports = colorSupport({ alwaysReturn: true }, colorSupport)
+
+function hasNone (obj, options) {
+  obj.level = 0
+  obj.hasBasic = false
+  obj.has256 = false
+  obj.has16m = false
+  if (!options.alwaysReturn) {
+    return false
+  }
+  return obj
+}
+
+function hasBasic (obj) {
+  obj.hasBasic = true
+  obj.has256 = false
+  obj.has16m = false
+  obj.level = 1
+  return obj
+}
+
+function has256 (obj) {
+  obj.hasBasic = true
+  obj.has256 = true
+  obj.has16m = false
+  obj.level = 2
+  return obj
+}
+
+function has16m (obj) {
+  obj.hasBasic = true
+  obj.has256 = true
+  obj.has16m = true
+  obj.level = 3
+  return obj
+}
+
+function colorSupport (options, obj) {
+  options = options || {}
+
+  obj = obj || {}
+
+  // if just requesting a specific level, then return that.
+  if (typeof options.level === 'number') {
+    switch (options.level) {
+      case 0:
+        return hasNone(obj, options)
+      case 1:
+        return hasBasic(obj)
+      case 2:
+        return has256(obj)
+      case 3:
+        return has16m(obj)
+    }
+  }
+
+  obj.level = 0
+  obj.hasBasic = false
+  obj.has256 = false
+  obj.has16m = false
+
+  if (typeof process === 'undefined' ||
+      !process ||
+      !process.stdout ||
+      !process.env ||
+      !process.platform) {
+    return hasNone(obj, options)
+  }
+
+  var env = options.env || process.env
+  var stream = options.stream || process.stdout
+  var term = options.term || env.TERM || ''
+  var platform = options.platform || process.platform
+
+  if (!options.ignoreTTY && !stream.isTTY) {
+    return hasNone(obj, options)
+  }
+
+  if (!options.ignoreDumb && term === 'dumb' && !env.COLORTERM) {
+    return hasNone(obj, options)
+  }
+
+  if (platform === 'win32') {
+    return hasBasic(obj)
+  }
+
+  if (env.TMUX) {
+    return has256(obj)
+  }
+
+  if (!options.ignoreCI && (env.CI || env.TEAMCITY_VERSION)) {
+    if (env.TRAVIS) {
+      return has256(obj)
+    } else {
+      return hasNone(obj, options)
+    }
+  }
+
+  // TODO: add more term programs
+  switch (env.TERM_PROGRAM) {
+    case 'iTerm.app':
+      var ver = env.TERM_PROGRAM_VERSION || '0.'
+      if (/^[0-2]\./.test(ver)) {
+        return has256(obj)
+      } else {
+        return has16m(obj)
+      }
+
+    case 'HyperTerm':
+    case 'Hyper':
+      return has16m(obj)
+
+    case 'MacTerm':
+      return has16m(obj)
+
+    case 'Apple_Terminal':
+      return has256(obj)
+  }
+
+  if (/^xterm-256/.test(term)) {
+    return has256(obj)
+  }
+
+  if (/^screen|^xterm|^vt100|color|ansi|cygwin|linux/i.test(term)) {
+    return hasBasic(obj)
+  }
+
+  if (env.COLORTERM) {
+    return hasBasic(obj)
+  }
+
+  return hasNone(obj, options)
+}
diff --git a/node_modules/color-support/package.json b/node_modules/color-support/package.json
new file mode 100644
index 0000000..f3e3b77
--- /dev/null
+++ b/node_modules/color-support/package.json
@@ -0,0 +1,36 @@
+{
+  "name": "color-support",
+  "version": "1.1.3",
+  "description": "A module which will endeavor to guess your terminal's level of color support.",
+  "main": "index.js",
+  "browser": "browser.js",
+  "bin": "bin.js",
+  "devDependencies": {
+    "tap": "^10.3.3"
+  },
+  "scripts": {
+    "test": "tap test/*.js --100 -J",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --all; git push origin --tags"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/isaacs/color-support.git"
+  },
+  "keywords": [
+    "terminal",
+    "color",
+    "support",
+    "xterm",
+    "truecolor",
+    "256"
+  ],
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "ISC",
+  "files": [
+    "browser.js",
+    "index.js",
+    "bin.js"
+  ]
+}
diff --git a/node_modules/concat-map/.travis.yml b/node_modules/concat-map/.travis.yml
new file mode 100644
index 0000000..f1d0f13
--- /dev/null
+++ b/node_modules/concat-map/.travis.yml
@@ -0,0 +1,4 @@
+language: node_js
+node_js:
+  - 0.4
+  - 0.6
diff --git a/node_modules/concat-map/LICENSE b/node_modules/concat-map/LICENSE
new file mode 100644
index 0000000..ee27ba4
--- /dev/null
+++ b/node_modules/concat-map/LICENSE
@@ -0,0 +1,18 @@
+This software is released under the MIT license:
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/concat-map/README.markdown b/node_modules/concat-map/README.markdown
new file mode 100644
index 0000000..408f70a
--- /dev/null
+++ b/node_modules/concat-map/README.markdown
@@ -0,0 +1,62 @@
+concat-map
+==========
+
+Concatenative mapdashery.
+
+[![browser support](http://ci.testling.com/substack/node-concat-map.png)](http://ci.testling.com/substack/node-concat-map)
+
+[![build status](https://secure.travis-ci.org/substack/node-concat-map.png)](http://travis-ci.org/substack/node-concat-map)
+
+example
+=======
+
+``` js
+var concatMap = require('concat-map');
+var xs = [ 1, 2, 3, 4, 5, 6 ];
+var ys = concatMap(xs, function (x) {
+    return x % 2 ? [ x - 0.1, x, x + 0.1 ] : [];
+});
+console.dir(ys);
+```
+
+***
+
+```
+[ 0.9, 1, 1.1, 2.9, 3, 3.1, 4.9, 5, 5.1 ]
+```
+
+methods
+=======
+
+``` js
+var concatMap = require('concat-map')
+```
+
+concatMap(xs, fn)
+-----------------
+
+Return an array of concatenated elements by calling `fn(x, i)` for each element
+`x` and each index `i` in the array `xs`.
+
+When `fn(x, i)` returns an array, its result will be concatenated with the
+result array. If `fn(x, i)` returns anything else, that value will be pushed
+onto the end of the result array.
+
+install
+=======
+
+With [npm](http://npmjs.org) do:
+
+```
+npm install concat-map
+```
+
+license
+=======
+
+MIT
+
+notes
+=====
+
+This module was written while sitting high above the ground in a tree.
diff --git a/node_modules/concat-map/example/map.js b/node_modules/concat-map/example/map.js
new file mode 100644
index 0000000..3365621
--- /dev/null
+++ b/node_modules/concat-map/example/map.js
@@ -0,0 +1,6 @@
+var concatMap = require('../');
+var xs = [ 1, 2, 3, 4, 5, 6 ];
+var ys = concatMap(xs, function (x) {
+    return x % 2 ? [ x - 0.1, x, x + 0.1 ] : [];
+});
+console.dir(ys);
diff --git a/node_modules/concat-map/index.js b/node_modules/concat-map/index.js
new file mode 100644
index 0000000..b29a781
--- /dev/null
+++ b/node_modules/concat-map/index.js
@@ -0,0 +1,13 @@
+module.exports = function (xs, fn) {
+    var res = [];
+    for (var i = 0; i < xs.length; i++) {
+        var x = fn(xs[i], i);
+        if (isArray(x)) res.push.apply(res, x);
+        else res.push(x);
+    }
+    return res;
+};
+
+var isArray = Array.isArray || function (xs) {
+    return Object.prototype.toString.call(xs) === '[object Array]';
+};
diff --git a/node_modules/concat-map/package.json b/node_modules/concat-map/package.json
new file mode 100644
index 0000000..d3640e6
--- /dev/null
+++ b/node_modules/concat-map/package.json
@@ -0,0 +1,43 @@
+{
+    "name" : "concat-map",
+    "description" : "concatenative mapdashery",
+    "version" : "0.0.1",
+    "repository" : {
+        "type" : "git",
+        "url" : "git://github.com/substack/node-concat-map.git"
+    },
+    "main" : "index.js",
+    "keywords" : [
+        "concat",
+        "concatMap",
+        "map",
+        "functional",
+        "higher-order"
+    ],
+    "directories" : {
+        "example" : "example",
+        "test" : "test"
+    },
+    "scripts" : {
+        "test" : "tape test/*.js"
+    },
+    "devDependencies" : {
+        "tape" : "~2.4.0"
+    },
+    "license" : "MIT",
+    "author" : {
+        "name" : "James Halliday",
+        "email" : "mail@substack.net",
+        "url" : "http://substack.net"
+    },
+    "testling" : {
+        "files" : "test/*.js",
+        "browsers" : {
+            "ie" : [ 6, 7, 8, 9 ],
+            "ff" : [ 3.5, 10, 15.0 ],
+            "chrome" : [ 10, 22 ],
+            "safari" : [ 5.1 ],
+            "opera" : [ 12 ]
+        }
+    }
+}
diff --git a/node_modules/concat-map/test/map.js b/node_modules/concat-map/test/map.js
new file mode 100644
index 0000000..fdbd702
--- /dev/null
+++ b/node_modules/concat-map/test/map.js
@@ -0,0 +1,39 @@
+var concatMap = require('../');
+var test = require('tape');
+
+test('empty or not', function (t) {
+    var xs = [ 1, 2, 3, 4, 5, 6 ];
+    var ixes = [];
+    var ys = concatMap(xs, function (x, ix) {
+        ixes.push(ix);
+        return x % 2 ? [ x - 0.1, x, x + 0.1 ] : [];
+    });
+    t.same(ys, [ 0.9, 1, 1.1, 2.9, 3, 3.1, 4.9, 5, 5.1 ]);
+    t.same(ixes, [ 0, 1, 2, 3, 4, 5 ]);
+    t.end();
+});
+
+test('always something', function (t) {
+    var xs = [ 'a', 'b', 'c', 'd' ];
+    var ys = concatMap(xs, function (x) {
+        return x === 'b' ? [ 'B', 'B', 'B' ] : [ x ];
+    });
+    t.same(ys, [ 'a', 'B', 'B', 'B', 'c', 'd' ]);
+    t.end();
+});
+
+test('scalars', function (t) {
+    var xs = [ 'a', 'b', 'c', 'd' ];
+    var ys = concatMap(xs, function (x) {
+        return x === 'b' ? [ 'B', 'B', 'B' ] : x;
+    });
+    t.same(ys, [ 'a', 'B', 'B', 'B', 'c', 'd' ]);
+    t.end();
+});
+
+test('undefs', function (t) {
+    var xs = [ 'a', 'b', 'c', 'd' ];
+    var ys = concatMap(xs, function () {});
+    t.same(ys, [ undefined, undefined, undefined, undefined ]);
+    t.end();
+});
diff --git a/node_modules/console-control-strings/LICENSE b/node_modules/console-control-strings/LICENSE
new file mode 100644
index 0000000..e756052
--- /dev/null
+++ b/node_modules/console-control-strings/LICENSE
@@ -0,0 +1,13 @@
+Copyright (c) 2014, Rebecca Turner <me@re-becca.org>
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/console-control-strings/README.md b/node_modules/console-control-strings/README.md
new file mode 100644
index 0000000..f58cc8d
--- /dev/null
+++ b/node_modules/console-control-strings/README.md
@@ -0,0 +1,145 @@
+# Console Control Strings
+
+A library of cross-platform tested terminal/console command strings for
+doing things like color and cursor positioning.  This is a subset of both
+ansi and vt100.  All control codes included work on both Windows & Unix-like
+OSes, except where noted.
+
+## Usage
+
+```js
+var consoleControl = require('console-control-strings')
+
+console.log(consoleControl.color('blue','bgRed', 'bold') + 'hi there' + consoleControl.color('reset'))
+process.stdout.write(consoleControl.goto(75, 10))
+```
+
+## Why Another?
+
+There are tons of libraries similar to this one.  I wanted one that was:
+
+1. Very clear about compatibility goals.
+2. Could emit, for instance, a start color code without an end one.
+3. Returned strings w/o writing to streams.
+4. Was not weighed down with other unrelated baggage.
+
+## Functions
+
+### var code = consoleControl.up(_num = 1_)
+
+Returns the escape sequence to move _num_ lines up.
+
+### var code = consoleControl.down(_num = 1_)
+
+Returns the escape sequence to move _num_ lines down.
+
+### var code = consoleControl.forward(_num = 1_)
+
+Returns the escape sequence to move _num_ lines righ.
+
+### var code = consoleControl.back(_num = 1_)
+
+Returns the escape sequence to move _num_ lines left.
+
+### var code = consoleControl.nextLine(_num = 1_)
+
+Returns the escape sequence to move _num_ lines down and to the beginning of
+the line.
+
+### var code = consoleControl.previousLine(_num = 1_)
+
+Returns the escape sequence to move _num_ lines up and to the beginning of
+the line.
+
+### var code = consoleControl.eraseData()
+
+Returns the escape sequence to erase everything from the current cursor
+position to the bottom right of the screen.  This is line based, so it
+erases the remainder of the current line and all following lines.
+
+### var code = consoleControl.eraseLine()
+
+Returns the escape sequence to erase to the end of the current line.
+
+### var code = consoleControl.goto(_x_, _y_)
+
+Returns the escape sequence to move the cursor to the designated position. 
+Note that the origin is _1, 1_ not _0, 0_.
+
+### var code = consoleControl.gotoSOL()
+
+Returns the escape sequence to move the cursor to the beginning of the
+current line. (That is, it returns a carriage return, `\r`.)
+
+### var code = consoleControl.beep()
+
+Returns the escape sequence to cause the termianl to beep.  (That is, it
+returns unicode character `\x0007`, a Control-G.)
+
+### var code = consoleControl.hideCursor()
+
+Returns the escape sequence to hide the cursor.
+
+### var code = consoleControl.showCursor()
+
+Returns the escape sequence to show the cursor.
+
+### var code = consoleControl.color(_colors = []_)
+
+### var code = consoleControl.color(_color1_, _color2_, _…_, _colorn_)
+
+Returns the escape sequence to set the current terminal display attributes
+(mostly colors).  Arguments can either be a list of attributes or an array
+of attributes.  The difference between passing in an array or list of colors
+and calling `.color` separately for each one, is that in the former case a
+single escape sequence will be produced where as in the latter each change
+will have its own distinct escape sequence.  Each attribute can be one of:
+
+* Reset:
+  * **reset** – Reset all attributes to the terminal default.
+* Styles:
+  * **bold** – Display text as bold.  In some terminals this means using a
+    bold font, in others this means changing the color.  In some it means
+    both.
+  * **italic** – Display text as italic. This is not available in most Windows terminals.
+  * **underline** – Underline text. This is not available in most Windows Terminals.
+  * **inverse** – Invert the foreground and background colors.
+  * **stopBold** – Do not display text as bold.
+  * **stopItalic** – Do not display text as italic.
+  * **stopUnderline** – Do not underline text.
+  * **stopInverse** – Do not invert foreground and background.
+* Colors:
+  * **white**
+  * **black**
+  * **blue**
+  * **cyan**
+  * **green**
+  * **magenta**
+  * **red**
+  * **yellow**
+  * **grey** / **brightBlack**
+  * **brightRed**
+  * **brightGreen**
+  * **brightYellow**
+  * **brightBlue**
+  * **brightMagenta**
+  * **brightCyan**
+  * **brightWhite**
+* Background Colors:
+  * **bgWhite**
+  * **bgBlack**
+  * **bgBlue**
+  * **bgCyan**
+  * **bgGreen**
+  * **bgMagenta**
+  * **bgRed**
+  * **bgYellow**
+  * **bgGrey** / **bgBrightBlack**
+  * **bgBrightRed**
+  * **bgBrightGreen**
+  * **bgBrightYellow**
+  * **bgBrightBlue**
+  * **bgBrightMagenta**
+  * **bgBrightCyan**
+  * **bgBrightWhite**
+
diff --git a/node_modules/console-control-strings/README.md~ b/node_modules/console-control-strings/README.md~
new file mode 100644
index 0000000..6eb34e8
--- /dev/null
+++ b/node_modules/console-control-strings/README.md~
@@ -0,0 +1,140 @@
+# Console Control Strings
+
+A library of cross-platform tested terminal/console command strings for
+doing things like color and cursor positioning.  This is a subset of both
+ansi and vt100.  All control codes included work on both Windows & Unix-like
+OSes, except where noted.
+
+## Usage
+
+```js
+var consoleControl = require('console-control-strings')
+
+console.log(consoleControl.color('blue','bgRed', 'bold') + 'hi there' + consoleControl.color('reset'))
+process.stdout.write(consoleControl.goto(75, 10))
+```
+
+## Why Another?
+
+There are tons of libraries similar to this one.  I wanted one that was:
+
+1. Very clear about compatibility goals.
+2. Could emit, for instance, a start color code without an end one.
+3. Returned strings w/o writing to streams.
+4. Was not weighed down with other unrelated baggage.
+
+## Functions
+
+### var code = consoleControl.up(_num = 1_)
+
+Returns the escape sequence to move _num_ lines up.
+
+### var code = consoleControl.down(_num = 1_)
+
+Returns the escape sequence to move _num_ lines down.
+
+### var code = consoleControl.forward(_num = 1_)
+
+Returns the escape sequence to move _num_ lines righ.
+
+### var code = consoleControl.back(_num = 1_)
+
+Returns the escape sequence to move _num_ lines left.
+
+### var code = consoleControl.nextLine(_num = 1_)
+
+Returns the escape sequence to move _num_ lines down and to the beginning of
+the line.
+
+### var code = consoleControl.previousLine(_num = 1_)
+
+Returns the escape sequence to move _num_ lines up and to the beginning of
+the line.
+
+### var code = consoleControl.eraseData()
+
+Returns the escape sequence to erase everything from the current cursor
+position to the bottom right of the screen.  This is line based, so it
+erases the remainder of the current line and all following lines.
+
+### var code = consoleControl.eraseLine()
+
+Returns the escape sequence to erase to the end of the current line.
+
+### var code = consoleControl.goto(_x_, _y_)
+
+Returns the escape sequence to move the cursor to the designated position. 
+Note that the origin is _1, 1_ not _0, 0_.
+
+### var code = consoleControl.gotoSOL()
+
+Returns the escape sequence to move the cursor to the beginning of the
+current line. (That is, it returns a carriage return, `\r`.)
+
+### var code = consoleControl.hideCursor()
+
+Returns the escape sequence to hide the cursor.
+
+### var code = consoleControl.showCursor()
+
+Returns the escape sequence to show the cursor.
+
+### var code = consoleControl.color(_colors = []_)
+
+### var code = consoleControl.color(_color1_, _color2_, _…_, _colorn_)
+
+Returns the escape sequence to set the current terminal display attributes
+(mostly colors).  Arguments can either be a list of attributes or an array
+of attributes.  The difference between passing in an array or list of colors
+and calling `.color` separately for each one, is that in the former case a
+single escape sequence will be produced where as in the latter each change
+will have its own distinct escape sequence.  Each attribute can be one of:
+
+* Reset:
+  * **reset** – Reset all attributes to the terminal default.
+* Styles:
+  * **bold** – Display text as bold.  In some terminals this means using a
+    bold font, in others this means changing the color.  In some it means
+    both.
+  * **italic** – Display text as italic. This is not available in most Windows terminals.
+  * **underline** – Underline text. This is not available in most Windows Terminals.
+  * **inverse** – Invert the foreground and background colors.
+  * **stopBold** – Do not display text as bold.
+  * **stopItalic** – Do not display text as italic.
+  * **stopUnderline** – Do not underline text.
+  * **stopInverse** – Do not invert foreground and background.
+* Colors:
+  * **white**
+  * **black**
+  * **blue**
+  * **cyan**
+  * **green**
+  * **magenta**
+  * **red**
+  * **yellow**
+  * **grey** / **brightBlack**
+  * **brightRed**
+  * **brightGreen**
+  * **brightYellow**
+  * **brightBlue**
+  * **brightMagenta**
+  * **brightCyan**
+  * **brightWhite**
+* Background Colors:
+  * **bgWhite**
+  * **bgBlack**
+  * **bgBlue**
+  * **bgCyan**
+  * **bgGreen**
+  * **bgMagenta**
+  * **bgRed**
+  * **bgYellow**
+  * **bgGrey** / **bgBrightBlack**
+  * **bgBrightRed**
+  * **bgBrightGreen**
+  * **bgBrightYellow**
+  * **bgBrightBlue**
+  * **bgBrightMagenta**
+  * **bgBrightCyan**
+  * **bgBrightWhite**
+
diff --git a/node_modules/console-control-strings/index.js b/node_modules/console-control-strings/index.js
new file mode 100644
index 0000000..bf89034
--- /dev/null
+++ b/node_modules/console-control-strings/index.js
@@ -0,0 +1,125 @@
+'use strict'
+
+// These tables borrowed from `ansi`
+
+var prefix = '\x1b['
+
+exports.up = function up (num) {
+  return prefix + (num || '') + 'A'
+}
+
+exports.down = function down (num) {
+  return prefix + (num || '') + 'B'
+}
+
+exports.forward = function forward (num) {
+  return prefix + (num || '') + 'C'
+}
+
+exports.back = function back (num) {
+  return prefix + (num || '') + 'D'
+}
+
+exports.nextLine = function nextLine (num) {
+  return prefix + (num || '') + 'E'
+}
+
+exports.previousLine = function previousLine (num) {
+  return prefix + (num || '') + 'F'
+}
+
+exports.horizontalAbsolute = function horizontalAbsolute (num) {
+  if (num == null) throw new Error('horizontalAboslute requires a column to position to')
+  return prefix + num + 'G'
+}
+
+exports.eraseData = function eraseData () {
+  return prefix + 'J'
+}
+
+exports.eraseLine = function eraseLine () {
+  return prefix + 'K'
+}
+
+exports.goto = function (x, y) {
+  return prefix + y + ';' + x + 'H'
+}
+
+exports.gotoSOL = function () {
+  return '\r'
+}
+
+exports.beep = function () {
+  return '\x07'
+}
+
+exports.hideCursor = function hideCursor () {
+  return prefix + '?25l'
+}
+
+exports.showCursor = function showCursor () {
+  return prefix + '?25h'
+}
+
+var colors = {
+  reset: 0,
+// styles
+  bold: 1,
+  italic: 3,
+  underline: 4,
+  inverse: 7,
+// resets
+  stopBold: 22,
+  stopItalic: 23,
+  stopUnderline: 24,
+  stopInverse: 27,
+// colors
+  white: 37,
+  black: 30,
+  blue: 34,
+  cyan: 36,
+  green: 32,
+  magenta: 35,
+  red: 31,
+  yellow: 33,
+  bgWhite: 47,
+  bgBlack: 40,
+  bgBlue: 44,
+  bgCyan: 46,
+  bgGreen: 42,
+  bgMagenta: 45,
+  bgRed: 41,
+  bgYellow: 43,
+
+  grey: 90,
+  brightBlack: 90,
+  brightRed: 91,
+  brightGreen: 92,
+  brightYellow: 93,
+  brightBlue: 94,
+  brightMagenta: 95,
+  brightCyan: 96,
+  brightWhite: 97,
+
+  bgGrey: 100,
+  bgBrightBlack: 100,
+  bgBrightRed: 101,
+  bgBrightGreen: 102,
+  bgBrightYellow: 103,
+  bgBrightBlue: 104,
+  bgBrightMagenta: 105,
+  bgBrightCyan: 106,
+  bgBrightWhite: 107
+}
+
+exports.color = function color (colorWith) {
+  if (arguments.length !== 1 || !Array.isArray(colorWith)) {
+    colorWith = Array.prototype.slice.call(arguments)
+  }
+  return prefix + colorWith.map(colorNameToCode).join(';') + 'm'
+}
+
+function colorNameToCode (color) {
+  if (colors[color] != null) return colors[color]
+  throw new Error('Unknown color or style name: ' + color)
+}
diff --git a/node_modules/console-control-strings/package.json b/node_modules/console-control-strings/package.json
new file mode 100644
index 0000000..eb6c62a
--- /dev/null
+++ b/node_modules/console-control-strings/package.json
@@ -0,0 +1,27 @@
+{
+  "name": "console-control-strings",
+  "version": "1.1.0",
+  "description": "A library of cross-platform tested terminal/console command strings for doing things like color and cursor positioning.  This is a subset of both ansi and vt100.  All control codes included work on both Windows & Unix-like OSes, except where noted.",
+  "main": "index.js",
+  "directories": {
+    "test": "test"
+  },
+  "scripts": {
+    "test": "standard && tap test/*.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/iarna/console-control-strings"
+  },
+  "keywords": [],
+  "author": "Rebecca Turner <me@re-becca.org> (http://re-becca.org/)",
+  "license": "ISC",
+  "files": [
+    "LICENSE",
+    "index.js"
+  ],
+  "devDependencies": {
+    "standard": "^7.1.2",
+    "tap": "^5.7.2"
+  }
+}
diff --git a/node_modules/delegates/.npmignore b/node_modules/delegates/.npmignore
new file mode 100644
index 0000000..c2658d7
--- /dev/null
+++ b/node_modules/delegates/.npmignore
@@ -0,0 +1 @@
+node_modules/
diff --git a/node_modules/delegates/History.md b/node_modules/delegates/History.md
new file mode 100644
index 0000000..25959ea
--- /dev/null
+++ b/node_modules/delegates/History.md
@@ -0,0 +1,22 @@
+
+1.0.0 / 2015-12-14
+==================
+
+  * Merge pull request #12 from kasicka/master
+  * Add license text
+
+0.1.0 / 2014-10-17
+==================
+
+ * adds `.fluent()` to api
+
+0.0.3 / 2014-01-13
+==================
+
+ * fix receiver for .method()
+
+0.0.2 / 2014-01-13
+==================
+
+ * Object.defineProperty() sucks
+ * Initial commit
diff --git a/node_modules/delegates/License b/node_modules/delegates/License
new file mode 100644
index 0000000..60de60a
--- /dev/null
+++ b/node_modules/delegates/License
@@ -0,0 +1,20 @@
+Copyright (c) 2015 TJ Holowaychuk <tj@vision-media.ca>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/delegates/Makefile b/node_modules/delegates/Makefile
new file mode 100644
index 0000000..a9dcfd5
--- /dev/null
+++ b/node_modules/delegates/Makefile
@@ -0,0 +1,8 @@
+
+test:
+	@./node_modules/.bin/mocha \
+		--require should \
+		--reporter spec \
+		--bail
+
+.PHONY: test
\ No newline at end of file
diff --git a/node_modules/delegates/Readme.md b/node_modules/delegates/Readme.md
new file mode 100644
index 0000000..ab8cf4a
--- /dev/null
+++ b/node_modules/delegates/Readme.md
@@ -0,0 +1,94 @@
+
+# delegates
+
+  Node method and accessor delegation utilty.
+
+## Installation
+
+```
+$ npm install delegates
+```
+
+## Example
+
+```js
+var delegate = require('delegates');
+
+...
+
+delegate(proto, 'request')
+  .method('acceptsLanguages')
+  .method('acceptsEncodings')
+  .method('acceptsCharsets')
+  .method('accepts')
+  .method('is')
+  .access('querystring')
+  .access('idempotent')
+  .access('socket')
+  .access('length')
+  .access('query')
+  .access('search')
+  .access('status')
+  .access('method')
+  .access('path')
+  .access('body')
+  .access('host')
+  .access('url')
+  .getter('subdomains')
+  .getter('protocol')
+  .getter('header')
+  .getter('stale')
+  .getter('fresh')
+  .getter('secure')
+  .getter('ips')
+  .getter('ip')
+```
+
+# API
+
+## Delegate(proto, prop)
+
+Creates a delegator instance used to configure using the `prop` on the given
+`proto` object. (which is usually a prototype)
+
+## Delegate#method(name)
+
+Allows the given method `name` to be accessed on the host.
+
+## Delegate#getter(name)
+
+Creates a "getter" for the property with the given `name` on the delegated
+object.
+
+## Delegate#setter(name)
+
+Creates a "setter" for the property with the given `name` on the delegated
+object.
+
+## Delegate#access(name)
+
+Creates an "accessor" (ie: both getter *and* setter) for the property with the
+given `name` on the delegated object.
+
+## Delegate#fluent(name)
+
+A unique type of "accessor" that works for a "fluent" API. When called as a
+getter, the method returns the expected value. However, if the method is called
+with a value, it will return itself so it can be chained. For example:
+
+```js
+delegate(proto, 'request')
+  .fluent('query')
+
+// getter
+var q = request.query();
+
+// setter (chainable)
+request
+  .query({ a: 1 })
+  .query({ b: 2 });
+```
+
+# License
+
+  MIT
diff --git a/node_modules/delegates/index.js b/node_modules/delegates/index.js
new file mode 100644
index 0000000..17c222d
--- /dev/null
+++ b/node_modules/delegates/index.js
@@ -0,0 +1,121 @@
+
+/**
+ * Expose `Delegator`.
+ */
+
+module.exports = Delegator;
+
+/**
+ * Initialize a delegator.
+ *
+ * @param {Object} proto
+ * @param {String} target
+ * @api public
+ */
+
+function Delegator(proto, target) {
+  if (!(this instanceof Delegator)) return new Delegator(proto, target);
+  this.proto = proto;
+  this.target = target;
+  this.methods = [];
+  this.getters = [];
+  this.setters = [];
+  this.fluents = [];
+}
+
+/**
+ * Delegate method `name`.
+ *
+ * @param {String} name
+ * @return {Delegator} self
+ * @api public
+ */
+
+Delegator.prototype.method = function(name){
+  var proto = this.proto;
+  var target = this.target;
+  this.methods.push(name);
+
+  proto[name] = function(){
+    return this[target][name].apply(this[target], arguments);
+  };
+
+  return this;
+};
+
+/**
+ * Delegator accessor `name`.
+ *
+ * @param {String} name
+ * @return {Delegator} self
+ * @api public
+ */
+
+Delegator.prototype.access = function(name){
+  return this.getter(name).setter(name);
+};
+
+/**
+ * Delegator getter `name`.
+ *
+ * @param {String} name
+ * @return {Delegator} self
+ * @api public
+ */
+
+Delegator.prototype.getter = function(name){
+  var proto = this.proto;
+  var target = this.target;
+  this.getters.push(name);
+
+  proto.__defineGetter__(name, function(){
+    return this[target][name];
+  });
+
+  return this;
+};
+
+/**
+ * Delegator setter `name`.
+ *
+ * @param {String} name
+ * @return {Delegator} self
+ * @api public
+ */
+
+Delegator.prototype.setter = function(name){
+  var proto = this.proto;
+  var target = this.target;
+  this.setters.push(name);
+
+  proto.__defineSetter__(name, function(val){
+    return this[target][name] = val;
+  });
+
+  return this;
+};
+
+/**
+ * Delegator fluent accessor
+ *
+ * @param {String} name
+ * @return {Delegator} self
+ * @api public
+ */
+
+Delegator.prototype.fluent = function (name) {
+  var proto = this.proto;
+  var target = this.target;
+  this.fluents.push(name);
+
+  proto[name] = function(val){
+    if ('undefined' != typeof val) {
+      this[target][name] = val;
+      return this;
+    } else {
+      return this[target][name];
+    }
+  };
+
+  return this;
+};
diff --git a/node_modules/delegates/package.json b/node_modules/delegates/package.json
new file mode 100644
index 0000000..1724038
--- /dev/null
+++ b/node_modules/delegates/package.json
@@ -0,0 +1,13 @@
+{
+  "name": "delegates",
+  "version": "1.0.0",
+  "repository": "visionmedia/node-delegates",
+  "description": "delegate methods and accessors to another property",
+  "keywords": ["delegate", "delegation"],
+  "dependencies": {},
+  "devDependencies": {
+    "mocha": "*",
+    "should": "*"
+  },
+  "license": "MIT"
+}
diff --git a/node_modules/delegates/test/index.js b/node_modules/delegates/test/index.js
new file mode 100644
index 0000000..7b6e3d4
--- /dev/null
+++ b/node_modules/delegates/test/index.js
@@ -0,0 +1,94 @@
+
+var assert = require('assert');
+var delegate = require('..');
+
+describe('.method(name)', function(){
+  it('should delegate methods', function(){
+    var obj = {};
+
+    obj.request = {
+      foo: function(bar){
+        assert(this == obj.request);
+        return bar;
+      }
+    };
+
+    delegate(obj, 'request').method('foo');
+
+    obj.foo('something').should.equal('something');
+  })
+})
+
+describe('.getter(name)', function(){
+  it('should delegate getters', function(){
+    var obj = {};
+
+    obj.request = {
+      get type() {
+        return 'text/html';
+      }
+    }
+
+    delegate(obj, 'request').getter('type');
+
+    obj.type.should.equal('text/html');
+  })
+})
+
+describe('.setter(name)', function(){
+  it('should delegate setters', function(){
+    var obj = {};
+
+    obj.request = {
+      get type() {
+        return this._type.toUpperCase();
+      },
+
+      set type(val) {
+        this._type = val;
+      }
+    }
+
+    delegate(obj, 'request').setter('type');
+
+    obj.type = 'hey';
+    obj.request.type.should.equal('HEY');
+  })
+})
+
+describe('.access(name)', function(){
+  it('should delegate getters and setters', function(){
+    var obj = {};
+
+    obj.request = {
+      get type() {
+        return this._type.toUpperCase();
+      },
+
+      set type(val) {
+        this._type = val;
+      }
+    }
+
+    delegate(obj, 'request').access('type');
+
+    obj.type = 'hey';
+    obj.type.should.equal('HEY');
+  })
+})
+
+describe('.fluent(name)', function () {
+  it('should delegate in a fluent fashion', function () {
+    var obj = {
+      settings: {
+        env: 'development'
+      }
+    };
+
+    delegate(obj, 'settings').fluent('env');
+
+    obj.env().should.equal('development');
+    obj.env('production').should.equal(obj);
+    obj.settings.env.should.equal('production');
+  })
+})
diff --git a/node_modules/detect-libc/LICENSE b/node_modules/detect-libc/LICENSE
new file mode 100644
index 0000000..8dada3e
--- /dev/null
+++ b/node_modules/detect-libc/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
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diff --git a/node_modules/detect-libc/README.md b/node_modules/detect-libc/README.md
new file mode 100644
index 0000000..23212fd
--- /dev/null
+++ b/node_modules/detect-libc/README.md
@@ -0,0 +1,163 @@
+# detect-libc
+
+Node.js module to detect details of the C standard library (libc)
+implementation provided by a given Linux system.
+
+Currently supports detection of GNU glibc and MUSL libc.
+
+Provides asychronous and synchronous functions for the
+family (e.g. `glibc`, `musl`) and version (e.g. `1.23`, `1.2.3`).
+
+The version numbers of libc implementations
+are not guaranteed to be semver-compliant.
+
+For previous v1.x releases, please see the
+[v1](https://github.com/lovell/detect-libc/tree/v1) branch.
+
+## Install
+
+```sh
+npm install detect-libc
+```
+
+## API
+
+### GLIBC
+
+```ts
+const GLIBC: string = 'glibc';
+```
+
+A String constant containing the value `glibc`.
+
+### MUSL
+
+```ts
+const MUSL: string = 'musl';
+```
+
+A String constant containing the value `musl`.
+
+### family
+
+```ts
+function family(): Promise<string | null>;
+```
+
+Resolves asychronously with:
+
+* `glibc` or `musl` when the libc family can be determined
+* `null` when the libc family cannot be determined
+* `null` when run on a non-Linux platform
+
+```js
+const { family, GLIBC, MUSL } = require('detect-libc');
+
+switch (await family()) {
+  case GLIBC: ...
+  case MUSL: ...
+  case null: ...
+}
+```
+
+### familySync
+
+```ts
+function familySync(): string | null;
+```
+
+Synchronous version of `family()`.
+
+```js
+const { familySync, GLIBC, MUSL } = require('detect-libc');
+
+switch (familySync()) {
+  case GLIBC: ...
+  case MUSL: ...
+  case null: ...
+}
+```
+
+### version
+
+```ts
+function version(): Promise<string | null>;
+```
+
+Resolves asychronously with:
+
+* The version when it can be determined
+* `null` when the libc family cannot be determined
+* `null` when run on a non-Linux platform
+
+```js
+const { version } = require('detect-libc');
+
+const v = await version();
+if (v) {
+  const [major, minor, patch] = v.split('.');
+}
+```
+
+### versionSync
+
+```ts
+function versionSync(): string | null;
+```
+
+Synchronous version of `version()`.
+
+```js
+const { versionSync } = require('detect-libc');
+
+const v = versionSync();
+if (v) {
+  const [major, minor, patch] = v.split('.');
+}
+```
+
+### isNonGlibcLinux
+
+```ts
+function isNonGlibcLinux(): Promise<boolean>;
+```
+
+Resolves asychronously with:
+
+* `false` when the libc family is `glibc`
+* `true` when the libc family is not `glibc`
+* `false` when run on a non-Linux platform
+
+```js
+const { isNonGlibcLinux } = require('detect-libc');
+
+if (await isNonGlibcLinux()) { ... }
+```
+
+### isNonGlibcLinuxSync
+
+```ts
+function isNonGlibcLinuxSync(): boolean;
+```
+
+Synchronous version of `isNonGlibcLinux()`.
+
+```js
+const { isNonGlibcLinuxSync } = require('detect-libc');
+
+if (isNonGlibcLinuxSync()) { ... }
+```
+
+## Licensing
+
+Copyright 2017 Lovell Fuller and others.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at [http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0.html)
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/node_modules/detect-libc/index.d.ts b/node_modules/detect-libc/index.d.ts
new file mode 100644
index 0000000..4c0fb2b
--- /dev/null
+++ b/node_modules/detect-libc/index.d.ts
@@ -0,0 +1,14 @@
+// Copyright 2017 Lovell Fuller and others.
+// SPDX-License-Identifier: Apache-2.0
+
+export const GLIBC: 'glibc';
+export const MUSL: 'musl';
+
+export function family(): Promise<string | null>;
+export function familySync(): string | null;
+
+export function isNonGlibcLinux(): Promise<boolean>;
+export function isNonGlibcLinuxSync(): boolean;
+
+export function version(): Promise<string | null>;
+export function versionSync(): string | null;
diff --git a/node_modules/detect-libc/lib/detect-libc.js b/node_modules/detect-libc/lib/detect-libc.js
new file mode 100644
index 0000000..d4ea6f0
--- /dev/null
+++ b/node_modules/detect-libc/lib/detect-libc.js
@@ -0,0 +1,279 @@
+// Copyright 2017 Lovell Fuller and others.
+// SPDX-License-Identifier: Apache-2.0
+
+'use strict';
+
+const childProcess = require('child_process');
+const { isLinux, getReport } = require('./process');
+const { LDD_PATH, readFile, readFileSync } = require('./filesystem');
+
+let cachedFamilyFilesystem;
+let cachedVersionFilesystem;
+
+const command = 'getconf GNU_LIBC_VERSION 2>&1 || true; ldd --version 2>&1 || true';
+let commandOut = '';
+
+const safeCommand = () => {
+  if (!commandOut) {
+    return new Promise((resolve) => {
+      childProcess.exec(command, (err, out) => {
+        commandOut = err ? ' ' : out;
+        resolve(commandOut);
+      });
+    });
+  }
+  return commandOut;
+};
+
+const safeCommandSync = () => {
+  if (!commandOut) {
+    try {
+      commandOut = childProcess.execSync(command, { encoding: 'utf8' });
+    } catch (_err) {
+      commandOut = ' ';
+    }
+  }
+  return commandOut;
+};
+
+/**
+ * A String constant containing the value `glibc`.
+ * @type {string}
+ * @public
+ */
+const GLIBC = 'glibc';
+
+/**
+ * A Regexp constant to get the GLIBC Version.
+ * @type {string}
+ */
+const RE_GLIBC_VERSION = /GLIBC\s(\d+\.\d+)/;
+
+/**
+ * A String constant containing the value `musl`.
+ * @type {string}
+ * @public
+ */
+const MUSL = 'musl';
+
+/**
+ * This string is used to find if the {@link LDD_PATH} is GLIBC
+ * @type {string}
+ */
+const GLIBC_ON_LDD = GLIBC.toUpperCase();
+
+/**
+ * This string is used to find if the {@link LDD_PATH} is musl
+ * @type {string}
+ */
+const MUSL_ON_LDD = MUSL.toLowerCase();
+
+const isFileMusl = (f) => f.includes('libc.musl-') || f.includes('ld-musl-');
+
+const familyFromReport = () => {
+  const report = getReport();
+  if (report.header && report.header.glibcVersionRuntime) {
+    return GLIBC;
+  }
+  if (Array.isArray(report.sharedObjects)) {
+    if (report.sharedObjects.some(isFileMusl)) {
+      return MUSL;
+    }
+  }
+  return null;
+};
+
+const familyFromCommand = (out) => {
+  const [getconf, ldd1] = out.split(/[\r\n]+/);
+  if (getconf && getconf.includes(GLIBC)) {
+    return GLIBC;
+  }
+  if (ldd1 && ldd1.includes(MUSL)) {
+    return MUSL;
+  }
+  return null;
+};
+
+const getFamilyFromLddContent = (content) => {
+  if (content.includes(MUSL_ON_LDD)) {
+    return MUSL;
+  }
+  if (content.includes(GLIBC_ON_LDD)) {
+    return GLIBC;
+  }
+  return null;
+};
+
+const familyFromFilesystem = async () => {
+  if (cachedFamilyFilesystem !== undefined) {
+    return cachedFamilyFilesystem;
+  }
+  cachedFamilyFilesystem = null;
+  try {
+    const lddContent = await readFile(LDD_PATH);
+    cachedFamilyFilesystem = getFamilyFromLddContent(lddContent);
+  } catch (e) {}
+  return cachedFamilyFilesystem;
+};
+
+const familyFromFilesystemSync = () => {
+  if (cachedFamilyFilesystem !== undefined) {
+    return cachedFamilyFilesystem;
+  }
+  cachedFamilyFilesystem = null;
+  try {
+    const lddContent = readFileSync(LDD_PATH);
+    cachedFamilyFilesystem = getFamilyFromLddContent(lddContent);
+  } catch (e) {}
+  return cachedFamilyFilesystem;
+};
+
+/**
+ * Resolves with the libc family when it can be determined, `null` otherwise.
+ * @returns {Promise<?string>}
+ */
+const family = async () => {
+  let family = null;
+  if (isLinux()) {
+    family = await familyFromFilesystem();
+    if (!family) {
+      family = familyFromReport();
+    }
+    if (!family) {
+      const out = await safeCommand();
+      family = familyFromCommand(out);
+    }
+  }
+  return family;
+};
+
+/**
+ * Returns the libc family when it can be determined, `null` otherwise.
+ * @returns {?string}
+ */
+const familySync = () => {
+  let family = null;
+  if (isLinux()) {
+    family = familyFromFilesystemSync();
+    if (!family) {
+      family = familyFromReport();
+    }
+    if (!family) {
+      const out = safeCommandSync();
+      family = familyFromCommand(out);
+    }
+  }
+  return family;
+};
+
+/**
+ * Resolves `true` only when the platform is Linux and the libc family is not `glibc`.
+ * @returns {Promise<boolean>}
+ */
+const isNonGlibcLinux = async () => isLinux() && await family() !== GLIBC;
+
+/**
+ * Returns `true` only when the platform is Linux and the libc family is not `glibc`.
+ * @returns {boolean}
+ */
+const isNonGlibcLinuxSync = () => isLinux() && familySync() !== GLIBC;
+
+const versionFromFilesystem = async () => {
+  if (cachedVersionFilesystem !== undefined) {
+    return cachedVersionFilesystem;
+  }
+  cachedVersionFilesystem = null;
+  try {
+    const lddContent = await readFile(LDD_PATH);
+    const versionMatch = lddContent.match(RE_GLIBC_VERSION);
+    if (versionMatch) {
+      cachedVersionFilesystem = versionMatch[1];
+    }
+  } catch (e) {}
+  return cachedVersionFilesystem;
+};
+
+const versionFromFilesystemSync = () => {
+  if (cachedVersionFilesystem !== undefined) {
+    return cachedVersionFilesystem;
+  }
+  cachedVersionFilesystem = null;
+  try {
+    const lddContent = readFileSync(LDD_PATH);
+    const versionMatch = lddContent.match(RE_GLIBC_VERSION);
+    if (versionMatch) {
+      cachedVersionFilesystem = versionMatch[1];
+    }
+  } catch (e) {}
+  return cachedVersionFilesystem;
+};
+
+const versionFromReport = () => {
+  const report = getReport();
+  if (report.header && report.header.glibcVersionRuntime) {
+    return report.header.glibcVersionRuntime;
+  }
+  return null;
+};
+
+const versionSuffix = (s) => s.trim().split(/\s+/)[1];
+
+const versionFromCommand = (out) => {
+  const [getconf, ldd1, ldd2] = out.split(/[\r\n]+/);
+  if (getconf && getconf.includes(GLIBC)) {
+    return versionSuffix(getconf);
+  }
+  if (ldd1 && ldd2 && ldd1.includes(MUSL)) {
+    return versionSuffix(ldd2);
+  }
+  return null;
+};
+
+/**
+ * Resolves with the libc version when it can be determined, `null` otherwise.
+ * @returns {Promise<?string>}
+ */
+const version = async () => {
+  let version = null;
+  if (isLinux()) {
+    version = await versionFromFilesystem();
+    if (!version) {
+      version = versionFromReport();
+    }
+    if (!version) {
+      const out = await safeCommand();
+      version = versionFromCommand(out);
+    }
+  }
+  return version;
+};
+
+/**
+ * Returns the libc version when it can be determined, `null` otherwise.
+ * @returns {?string}
+ */
+const versionSync = () => {
+  let version = null;
+  if (isLinux()) {
+    version = versionFromFilesystemSync();
+    if (!version) {
+      version = versionFromReport();
+    }
+    if (!version) {
+      const out = safeCommandSync();
+      version = versionFromCommand(out);
+    }
+  }
+  return version;
+};
+
+module.exports = {
+  GLIBC,
+  MUSL,
+  family,
+  familySync,
+  isNonGlibcLinux,
+  isNonGlibcLinuxSync,
+  version,
+  versionSync
+};
diff --git a/node_modules/detect-libc/lib/filesystem.js b/node_modules/detect-libc/lib/filesystem.js
new file mode 100644
index 0000000..de7e007
--- /dev/null
+++ b/node_modules/detect-libc/lib/filesystem.js
@@ -0,0 +1,41 @@
+// Copyright 2017 Lovell Fuller and others.
+// SPDX-License-Identifier: Apache-2.0
+
+'use strict';
+
+const fs = require('fs');
+
+/**
+ * The path where we can find the ldd
+ */
+const LDD_PATH = '/usr/bin/ldd';
+
+/**
+ * Read the content of a file synchronous
+ *
+ * @param {string} path
+ * @returns {string}
+ */
+const readFileSync = (path) => fs.readFileSync(path, 'utf-8');
+
+/**
+ * Read the content of a file
+ *
+ * @param {string} path
+ * @returns {Promise<string>}
+ */
+const readFile = (path) => new Promise((resolve, reject) => {
+  fs.readFile(path, 'utf-8', (err, data) => {
+    if (err) {
+      reject(err);
+    } else {
+      resolve(data);
+    }
+  });
+});
+
+module.exports = {
+  LDD_PATH,
+  readFileSync,
+  readFile
+};
diff --git a/node_modules/detect-libc/lib/process.js b/node_modules/detect-libc/lib/process.js
new file mode 100644
index 0000000..d27fcb7
--- /dev/null
+++ b/node_modules/detect-libc/lib/process.js
@@ -0,0 +1,19 @@
+// Copyright 2017 Lovell Fuller and others.
+// SPDX-License-Identifier: Apache-2.0
+
+'use strict';
+
+const isLinux = () => process.platform === 'linux';
+
+let report = null;
+const getReport = () => {
+  if (!report) {
+    /* istanbul ignore next */
+    report = isLinux() && process.report
+      ? process.report.getReport()
+      : {};
+  }
+  return report;
+};
+
+module.exports = { isLinux, getReport };
diff --git a/node_modules/detect-libc/package.json b/node_modules/detect-libc/package.json
new file mode 100644
index 0000000..dd8e42c
--- /dev/null
+++ b/node_modules/detect-libc/package.json
@@ -0,0 +1,40 @@
+{
+  "name": "detect-libc",
+  "version": "2.0.2",
+  "description": "Node.js module to detect the C standard library (libc) implementation family and version",
+  "main": "lib/detect-libc.js",
+  "files": [
+    "lib/",
+    "index.d.ts"
+  ],
+  "scripts": {
+    "test": "semistandard && nyc --reporter=lcov --check-coverage --branches=100 ava test/unit.js",
+    "bench": "node benchmark/detect-libc",
+    "bench:calls": "node benchmark/call-familySync.js && sleep 1 && node benchmark/call-isNonGlibcLinuxSync.js && sleep 1 && node benchmark/call-versionSync.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/lovell/detect-libc"
+  },
+  "keywords": [
+    "libc",
+    "glibc",
+    "musl"
+  ],
+  "author": "Lovell Fuller <npm@lovell.info>",
+  "contributors": [
+    "Niklas Salmoukas <niklas@salmoukas.com>",
+    "Vinícius Lourenço <vinyygamerlol@gmail.com>"
+  ],
+  "license": "Apache-2.0",
+  "devDependencies": {
+    "ava": "^2.4.0",
+    "benchmark": "^2.1.4",
+    "nyc": "^15.1.0",
+    "proxyquire": "^2.1.3",
+    "semistandard": "^14.2.3"
+  },
+  "engines": {
+    "node": ">=8"
+  }
+}
diff --git a/node_modules/emoji-regex/LICENSE-MIT.txt b/node_modules/emoji-regex/LICENSE-MIT.txt
new file mode 100644
index 0000000..a41e0a7
--- /dev/null
+++ b/node_modules/emoji-regex/LICENSE-MIT.txt
@@ -0,0 +1,20 @@
+Copyright Mathias Bynens <https://mathiasbynens.be/>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/emoji-regex/README.md b/node_modules/emoji-regex/README.md
new file mode 100644
index 0000000..f10e173
--- /dev/null
+++ b/node_modules/emoji-regex/README.md
@@ -0,0 +1,73 @@
+# emoji-regex [![Build status](https://travis-ci.org/mathiasbynens/emoji-regex.svg?branch=master)](https://travis-ci.org/mathiasbynens/emoji-regex)
+
+_emoji-regex_ offers a regular expression to match all emoji symbols (including textual representations of emoji) as per the Unicode Standard.
+
+This repository contains a script that generates this regular expression based on [the data from Unicode v12](https://github.com/mathiasbynens/unicode-12.0.0). Because of this, the regular expression can easily be updated whenever new emoji are added to the Unicode standard.
+
+## Installation
+
+Via [npm](https://www.npmjs.com/):
+
+```bash
+npm install emoji-regex
+```
+
+In [Node.js](https://nodejs.org/):
+
+```js
+const emojiRegex = require('emoji-regex');
+// Note: because the regular expression has the global flag set, this module
+// exports a function that returns the regex rather than exporting the regular
+// expression itself, to make it impossible to (accidentally) mutate the
+// original regular expression.
+
+const text = `
+\u{231A}: ⌚ default emoji presentation character (Emoji_Presentation)
+\u{2194}\u{FE0F}: ↔️ default text presentation character rendered as emoji
+\u{1F469}: 👩 emoji modifier base (Emoji_Modifier_Base)
+\u{1F469}\u{1F3FF}: 👩🏿 emoji modifier base followed by a modifier
+`;
+
+const regex = emojiRegex();
+let match;
+while (match = regex.exec(text)) {
+  const emoji = match[0];
+  console.log(`Matched sequence ${ emoji } — code points: ${ [...emoji].length }`);
+}
+```
+
+Console output:
+
+```
+Matched sequence ⌚ — code points: 1
+Matched sequence ⌚ — code points: 1
+Matched sequence ↔️ — code points: 2
+Matched sequence ↔️ — code points: 2
+Matched sequence 👩 — code points: 1
+Matched sequence 👩 — code points: 1
+Matched sequence 👩🏿 — code points: 2
+Matched sequence 👩🏿 — code points: 2
+```
+
+To match emoji in their textual representation as well (i.e. emoji that are not `Emoji_Presentation` symbols and that aren’t forced to render as emoji by a variation selector), `require` the other regex:
+
+```js
+const emojiRegex = require('emoji-regex/text.js');
+```
+
+Additionally, in environments which support ES2015 Unicode escapes, you may `require` ES2015-style versions of the regexes:
+
+```js
+const emojiRegex = require('emoji-regex/es2015/index.js');
+const emojiRegexText = require('emoji-regex/es2015/text.js');
+```
+
+## Author
+
+| [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") |
+|---|
+| [Mathias Bynens](https://mathiasbynens.be/) |
+
+## License
+
+_emoji-regex_ is available under the [MIT](https://mths.be/mit) license.
diff --git a/node_modules/emoji-regex/es2015/index.js b/node_modules/emoji-regex/es2015/index.js
new file mode 100644
index 0000000..b4cf3dc
--- /dev/null
+++ b/node_modules/emoji-regex/es2015/index.js
@@ -0,0 +1,6 @@
+"use strict";
+
+module.exports = () => {
+  // https://mths.be/emoji
+  return /\u{1F3F4}\u{E0067}\u{E0062}(?:\u{E0065}\u{E006E}\u{E0067}|\u{E0073}\u{E0063}\u{E0074}|\u{E0077}\u{E006C}\u{E0073})\u{E007F}|\u{1F468}(?:\u{1F3FC}\u200D(?:\u{1F91D}\u200D\u{1F468}\u{1F3FB}|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FF}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FB}-\u{1F3FE}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FE}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FB}-\u{1F3FD}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FD}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FB}\u{1F3FC}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u200D(?:\u2764\uFE0F\u200D(?:\u{1F48B}\u200D)?\u{1F468}|[\u{1F468}\u{1F469}]\u200D(?:\u{1F466}\u200D\u{1F466}|\u{1F467}\u200D[\u{1F466}\u{1F467}])|\u{1F466}\u200D\u{1F466}|\u{1F467}\u200D[\u{1F466}\u{1F467}]|[\u{1F468}\u{1F469}]\u200D[\u{1F466}\u{1F467}]|[\u2695\u2696\u2708]\uFE0F|[\u{1F466}\u{1F467}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|(?:\u{1F3FB}\u200D[\u2695\u2696\u2708]|\u{1F3FF}\u200D[\u2695\u2696\u2708]|\u{1F3FE}\u200D[\u2695\u2696\u2708]|\u{1F3FD}\u200D[\u2695\u2696\u2708]|\u{1F3FC}\u200D[\u2695\u2696\u2708])\uFE0F|\u{1F3FB}\u200D[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}]|[\u{1F3FB}-\u{1F3FF}])|(?:\u{1F9D1}\u{1F3FB}\u200D\u{1F91D}\u200D\u{1F9D1}|\u{1F469}\u{1F3FC}\u200D\u{1F91D}\u200D\u{1F469})\u{1F3FB}|\u{1F9D1}(?:\u{1F3FF}\u200D\u{1F91D}\u200D\u{1F9D1}[\u{1F3FB}-\u{1F3FF}]|\u200D\u{1F91D}\u200D\u{1F9D1})|(?:\u{1F9D1}\u{1F3FE}\u200D\u{1F91D}\u200D\u{1F9D1}|\u{1F469}\u{1F3FF}\u200D\u{1F91D}\u200D[\u{1F468}\u{1F469}])[\u{1F3FB}-\u{1F3FE}]|(?:\u{1F9D1}\u{1F3FC}\u200D\u{1F91D}\u200D\u{1F9D1}|\u{1F469}\u{1F3FD}\u200D\u{1F91D}\u200D\u{1F469})[\u{1F3FB}\u{1F3FC}]|\u{1F469}(?:\u{1F3FE}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FB}-\u{1F3FD}\u{1F3FF}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FC}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FB}\u{1F3FD}-\u{1F3FF}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FB}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FC}-\u{1F3FF}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FD}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FB}\u{1F3FC}\u{1F3FE}\u{1F3FF}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u200D(?:\u2764\uFE0F\u200D(?:\u{1F48B}\u200D[\u{1F468}\u{1F469}]|[\u{1F468}\u{1F469}])|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FF}\u200D[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F469}\u200D\u{1F469}\u200D(?:\u{1F466}\u200D\u{1F466}|\u{1F467}\u200D[\u{1F466}\u{1F467}])|(?:\u{1F9D1}\u{1F3FD}\u200D\u{1F91D}\u200D\u{1F9D1}|\u{1F469}\u{1F3FE}\u200D\u{1F91D}\u200D\u{1F469})[\u{1F3FB}-\u{1F3FD}]|\u{1F469}\u200D\u{1F466}\u200D\u{1F466}|\u{1F469}\u200D\u{1F469}\u200D[\u{1F466}\u{1F467}]|(?:\u{1F441}\uFE0F\u200D\u{1F5E8}|\u{1F469}(?:\u{1F3FF}\u200D[\u2695\u2696\u2708]|\u{1F3FE}\u200D[\u2695\u2696\u2708]|\u{1F3FC}\u200D[\u2695\u2696\u2708]|\u{1F3FB}\u200D[\u2695\u2696\u2708]|\u{1F3FD}\u200D[\u2695\u2696\u2708]|\u200D[\u2695\u2696\u2708])|(?:[\u26F9\u{1F3CB}\u{1F3CC}\u{1F575}]\uFE0F|[\u{1F46F}\u{1F93C}\u{1F9DE}\u{1F9DF}])\u200D[\u2640\u2642]|[\u26F9\u{1F3CB}\u{1F3CC}\u{1F575}][\u{1F3FB}-\u{1F3FF}]\u200D[\u2640\u2642]|[\u{1F3C3}\u{1F3C4}\u{1F3CA}\u{1F46E}\u{1F471}\u{1F473}\u{1F477}\u{1F481}\u{1F482}\u{1F486}\u{1F487}\u{1F645}-\u{1F647}\u{1F64B}\u{1F64D}\u{1F64E}\u{1F6A3}\u{1F6B4}-\u{1F6B6}\u{1F926}\u{1F937}-\u{1F939}\u{1F93D}\u{1F93E}\u{1F9B8}\u{1F9B9}\u{1F9CD}-\u{1F9CF}\u{1F9D6}-\u{1F9DD}](?:[\u{1F3FB}-\u{1F3FF}]\u200D[\u2640\u2642]|\u200D[\u2640\u2642])|\u{1F3F4}\u200D\u2620)\uFE0F|\u{1F469}\u200D\u{1F467}\u200D[\u{1F466}\u{1F467}]|\u{1F3F3}\uFE0F\u200D\u{1F308}|\u{1F415}\u200D\u{1F9BA}|\u{1F469}\u200D\u{1F466}|\u{1F469}\u200D\u{1F467}|\u{1F1FD}\u{1F1F0}|\u{1F1F4}\u{1F1F2}|\u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+};
diff --git a/node_modules/emoji-regex/es2015/text.js b/node_modules/emoji-regex/es2015/text.js
new file mode 100644
index 0000000..780309d
--- /dev/null
+++ b/node_modules/emoji-regex/es2015/text.js
@@ -0,0 +1,6 @@
+"use strict";
+
+module.exports = () => {
+  // https://mths.be/emoji
+  return /\u{1F3F4}\u{E0067}\u{E0062}(?:\u{E0065}\u{E006E}\u{E0067}|\u{E0073}\u{E0063}\u{E0074}|\u{E0077}\u{E006C}\u{E0073})\u{E007F}|\u{1F468}(?:\u{1F3FC}\u200D(?:\u{1F91D}\u200D\u{1F468}\u{1F3FB}|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FF}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FB}-\u{1F3FE}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FE}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FB}-\u{1F3FD}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FD}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FB}\u{1F3FC}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u200D(?:\u2764\uFE0F\u200D(?:\u{1F48B}\u200D)?\u{1F468}|[\u{1F468}\u{1F469}]\u200D(?:\u{1F466}\u200D\u{1F466}|\u{1F467}\u200D[\u{1F466}\u{1F467}])|\u{1F466}\u200D\u{1F466}|\u{1F467}\u200D[\u{1F466}\u{1F467}]|[\u{1F468}\u{1F469}]\u200D[\u{1F466}\u{1F467}]|[\u2695\u2696\u2708]\uFE0F|[\u{1F466}\u{1F467}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|(?:\u{1F3FB}\u200D[\u2695\u2696\u2708]|\u{1F3FF}\u200D[\u2695\u2696\u2708]|\u{1F3FE}\u200D[\u2695\u2696\u2708]|\u{1F3FD}\u200D[\u2695\u2696\u2708]|\u{1F3FC}\u200D[\u2695\u2696\u2708])\uFE0F|\u{1F3FB}\u200D[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}]|[\u{1F3FB}-\u{1F3FF}])|(?:\u{1F9D1}\u{1F3FB}\u200D\u{1F91D}\u200D\u{1F9D1}|\u{1F469}\u{1F3FC}\u200D\u{1F91D}\u200D\u{1F469})\u{1F3FB}|\u{1F9D1}(?:\u{1F3FF}\u200D\u{1F91D}\u200D\u{1F9D1}[\u{1F3FB}-\u{1F3FF}]|\u200D\u{1F91D}\u200D\u{1F9D1})|(?:\u{1F9D1}\u{1F3FE}\u200D\u{1F91D}\u200D\u{1F9D1}|\u{1F469}\u{1F3FF}\u200D\u{1F91D}\u200D[\u{1F468}\u{1F469}])[\u{1F3FB}-\u{1F3FE}]|(?:\u{1F9D1}\u{1F3FC}\u200D\u{1F91D}\u200D\u{1F9D1}|\u{1F469}\u{1F3FD}\u200D\u{1F91D}\u200D\u{1F469})[\u{1F3FB}\u{1F3FC}]|\u{1F469}(?:\u{1F3FE}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FB}-\u{1F3FD}\u{1F3FF}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FC}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FB}\u{1F3FD}-\u{1F3FF}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FB}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FC}-\u{1F3FF}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FD}\u200D(?:\u{1F91D}\u200D\u{1F468}[\u{1F3FB}\u{1F3FC}\u{1F3FE}\u{1F3FF}]|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u200D(?:\u2764\uFE0F\u200D(?:\u{1F48B}\u200D[\u{1F468}\u{1F469}]|[\u{1F468}\u{1F469}])|[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F3FF}\u200D[\u{1F33E}\u{1F373}\u{1F393}\u{1F3A4}\u{1F3A8}\u{1F3EB}\u{1F3ED}\u{1F4BB}\u{1F4BC}\u{1F527}\u{1F52C}\u{1F680}\u{1F692}\u{1F9AF}-\u{1F9B3}\u{1F9BC}\u{1F9BD}])|\u{1F469}\u200D\u{1F469}\u200D(?:\u{1F466}\u200D\u{1F466}|\u{1F467}\u200D[\u{1F466}\u{1F467}])|(?:\u{1F9D1}\u{1F3FD}\u200D\u{1F91D}\u200D\u{1F9D1}|\u{1F469}\u{1F3FE}\u200D\u{1F91D}\u200D\u{1F469})[\u{1F3FB}-\u{1F3FD}]|\u{1F469}\u200D\u{1F466}\u200D\u{1F466}|\u{1F469}\u200D\u{1F469}\u200D[\u{1F466}\u{1F467}]|(?:\u{1F441}\uFE0F\u200D\u{1F5E8}|\u{1F469}(?:\u{1F3FF}\u200D[\u2695\u2696\u2708]|\u{1F3FE}\u200D[\u2695\u2696\u2708]|\u{1F3FC}\u200D[\u2695\u2696\u2708]|\u{1F3FB}\u200D[\u2695\u2696\u2708]|\u{1F3FD}\u200D[\u2695\u2696\u2708]|\u200D[\u2695\u2696\u2708])|(?:[\u26F9\u{1F3CB}\u{1F3CC}\u{1F575}]\uFE0F|[\u{1F46F}\u{1F93C}\u{1F9DE}\u{1F9DF}])\u200D[\u2640\u2642]|[\u26F9\u{1F3CB}\u{1F3CC}\u{1F575}][\u{1F3FB}-\u{1F3FF}]\u200D[\u2640\u2642]|[\u{1F3C3}\u{1F3C4}\u{1F3CA}\u{1F46E}\u{1F471}\u{1F473}\u{1F477}\u{1F481}\u{1F482}\u{1F486}\u{1F487}\u{1F645}-\u{1F647}\u{1F64B}\u{1F64D}\u{1F64E}\u{1F6A3}\u{1F6B4}-\u{1F6B6}\u{1F926}\u{1F937}-\u{1F939}\u{1F93D}\u{1F93E}\u{1F9B8}\u{1F9B9}\u{1F9CD}-\u{1F9CF}\u{1F9D6}-\u{1F9DD}](?:[\u{1F3FB}-\u{1F3FF}]\u200D[\u2640\u2642]|\u200D[\u2640\u2642])|\u{1F3F4}\u200D\u2620)\uFE0F|\u{1F469}\u200D\u{1F467}\u200D[\u{1F466}\u{1F467}]|\u{1F3F3}\uFE0F\u200D\u{1F308}|\u{1F415}\u200D\u{1F9BA}|\u{1F469}\u200D\u{1F466}|\u{1F469}\u200D\u{1F467}|\u{1F1FD}\u{1F1F0}|\u{1F1F4}\u{1F1F2}|\u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+};
diff --git a/node_modules/emoji-regex/index.d.ts b/node_modules/emoji-regex/index.d.ts
new file mode 100644
index 0000000..1955b47
--- /dev/null
+++ b/node_modules/emoji-regex/index.d.ts
@@ -0,0 +1,23 @@
+declare module 'emoji-regex' {
+    function emojiRegex(): RegExp;
+
+    export default emojiRegex;
+}
+
+declare module 'emoji-regex/text' {
+    function emojiRegex(): RegExp;
+
+    export default emojiRegex;
+}
+
+declare module 'emoji-regex/es2015' {
+    function emojiRegex(): RegExp;
+
+    export default emojiRegex;
+}
+
+declare module 'emoji-regex/es2015/text' {
+    function emojiRegex(): RegExp;
+
+    export default emojiRegex;
+}
diff --git a/node_modules/emoji-regex/index.js b/node_modules/emoji-regex/index.js
new file mode 100644
index 0000000..d993a3a
--- /dev/null
+++ b/node_modules/emoji-regex/index.js
@@ -0,0 +1,6 @@
+"use strict";
+
+module.exports = function () {
+  // https://mths.be/emoji
+  return /\uD83C\uDFF4\uDB40\uDC67\uDB40\uDC62(?:\uDB40\uDC65\uDB40\uDC6E\uDB40\uDC67|\uDB40\uDC73\uDB40\uDC63\uDB40\uDC74|\uDB40\uDC77\uDB40\uDC6C\uDB40\uDC73)\uDB40\uDC7F|\uD83D\uDC68(?:\uD83C\uDFFC\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68\uD83C\uDFFB|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFF\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFB-\uDFFE])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFE\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFB-\uDFFD])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFD\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFB\uDFFC])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\u200D(?:\u2764\uFE0F\u200D(?:\uD83D\uDC8B\u200D)?\uD83D\uDC68|(?:\uD83D[\uDC68\uDC69])\u200D(?:\uD83D\uDC66\u200D\uD83D\uDC66|\uD83D\uDC67\u200D(?:\uD83D[\uDC66\uDC67]))|\uD83D\uDC66\u200D\uD83D\uDC66|\uD83D\uDC67\u200D(?:\uD83D[\uDC66\uDC67])|(?:\uD83D[\uDC68\uDC69])\u200D(?:\uD83D[\uDC66\uDC67])|[\u2695\u2696\u2708]\uFE0F|\uD83D[\uDC66\uDC67]|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|(?:\uD83C\uDFFB\u200D[\u2695\u2696\u2708]|\uD83C\uDFFF\u200D[\u2695\u2696\u2708]|\uD83C\uDFFE\u200D[\u2695\u2696\u2708]|\uD83C\uDFFD\u200D[\u2695\u2696\u2708]|\uD83C\uDFFC\u200D[\u2695\u2696\u2708])\uFE0F|\uD83C\uDFFB\u200D(?:\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C[\uDFFB-\uDFFF])|(?:\uD83E\uDDD1\uD83C\uDFFB\u200D\uD83E\uDD1D\u200D\uD83E\uDDD1|\uD83D\uDC69\uD83C\uDFFC\u200D\uD83E\uDD1D\u200D\uD83D\uDC69)\uD83C\uDFFB|\uD83E\uDDD1(?:\uD83C\uDFFF\u200D\uD83E\uDD1D\u200D\uD83E\uDDD1(?:\uD83C[\uDFFB-\uDFFF])|\u200D\uD83E\uDD1D\u200D\uD83E\uDDD1)|(?:\uD83E\uDDD1\uD83C\uDFFE\u200D\uD83E\uDD1D\u200D\uD83E\uDDD1|\uD83D\uDC69\uD83C\uDFFF\u200D\uD83E\uDD1D\u200D(?:\uD83D[\uDC68\uDC69]))(?:\uD83C[\uDFFB-\uDFFE])|(?:\uD83E\uDDD1\uD83C\uDFFC\u200D\uD83E\uDD1D\u200D\uD83E\uDDD1|\uD83D\uDC69\uD83C\uDFFD\u200D\uD83E\uDD1D\u200D\uD83D\uDC69)(?:\uD83C[\uDFFB\uDFFC])|\uD83D\uDC69(?:\uD83C\uDFFE\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFB-\uDFFD\uDFFF])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFC\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFB\uDFFD-\uDFFF])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFB\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFC-\uDFFF])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFD\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFB\uDFFC\uDFFE\uDFFF])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\u200D(?:\u2764\uFE0F\u200D(?:\uD83D\uDC8B\u200D(?:\uD83D[\uDC68\uDC69])|\uD83D[\uDC68\uDC69])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFF\u200D(?:\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD]))|\uD83D\uDC69\u200D\uD83D\uDC69\u200D(?:\uD83D\uDC66\u200D\uD83D\uDC66|\uD83D\uDC67\u200D(?:\uD83D[\uDC66\uDC67]))|(?:\uD83E\uDDD1\uD83C\uDFFD\u200D\uD83E\uDD1D\u200D\uD83E\uDDD1|\uD83D\uDC69\uD83C\uDFFE\u200D\uD83E\uDD1D\u200D\uD83D\uDC69)(?:\uD83C[\uDFFB-\uDFFD])|\uD83D\uDC69\u200D\uD83D\uDC66\u200D\uD83D\uDC66|\uD83D\uDC69\u200D\uD83D\uDC69\u200D(?:\uD83D[\uDC66\uDC67])|(?:\uD83D\uDC41\uFE0F\u200D\uD83D\uDDE8|\uD83D\uDC69(?:\uD83C\uDFFF\u200D[\u2695\u2696\u2708]|\uD83C\uDFFE\u200D[\u2695\u2696\u2708]|\uD83C\uDFFC\u200D[\u2695\u2696\u2708]|\uD83C\uDFFB\u200D[\u2695\u2696\u2708]|\uD83C\uDFFD\u200D[\u2695\u2696\u2708]|\u200D[\u2695\u2696\u2708])|(?:(?:\u26F9|\uD83C[\uDFCB\uDFCC]|\uD83D\uDD75)\uFE0F|\uD83D\uDC6F|\uD83E[\uDD3C\uDDDE\uDDDF])\u200D[\u2640\u2642]|(?:\u26F9|\uD83C[\uDFCB\uDFCC]|\uD83D\uDD75)(?:\uD83C[\uDFFB-\uDFFF])\u200D[\u2640\u2642]|(?:\uD83C[\uDFC3\uDFC4\uDFCA]|\uD83D[\uDC6E\uDC71\uDC73\uDC77\uDC81\uDC82\uDC86\uDC87\uDE45-\uDE47\uDE4B\uDE4D\uDE4E\uDEA3\uDEB4-\uDEB6]|\uD83E[\uDD26\uDD37-\uDD39\uDD3D\uDD3E\uDDB8\uDDB9\uDDCD-\uDDCF\uDDD6-\uDDDD])(?:(?:\uD83C[\uDFFB-\uDFFF])\u200D[\u2640\u2642]|\u200D[\u2640\u2642])|\uD83C\uDFF4\u200D\u2620)\uFE0F|\uD83D\uDC69\u200D\uD83D\uDC67\u200D(?:\uD83D[\uDC66\uDC67])|\uD83C\uDFF3\uFE0F\u200D\uD83C\uDF08|\uD83D\uDC15\u200D\uD83E\uDDBA|\uD83D\uDC69\u200D\uD83D\uDC66|\uD83D\uDC69\u200D\uD83D\uDC67|\uD83C\uDDFD\uD83C\uDDF0|\uD83C\uDDF4\uD83C\uDDF2|\uD83C\uDDF6\uD83C\uDDE6|[#\*0-9]\uFE0F\u20E3|\uD83C\uDDE7(?:\uD83C[\uDDE6\uDDE7\uDDE9-\uDDEF\uDDF1-\uDDF4\uDDF6-\uDDF9\uDDFB\uDDFC\uDDFE\uDDFF])|\uD83C\uDDF9(?:\uD83C[\uDDE6\uDDE8\uDDE9\uDDEB-\uDDED\uDDEF-\uDDF4\uDDF7\uDDF9\uDDFB\uDDFC\uDDFF])|\uD83C\uDDEA(?:\uD83C[\uDDE6\uDDE8\uDDEA\uDDEC\uDDED\uDDF7-\uDDFA])|\uD83E\uDDD1(?:\uD83C[\uDFFB-\uDFFF])|\uD83C\uDDF7(?:\uD83C[\uDDEA\uDDF4\uDDF8\uDDFA\uDDFC])|\uD83D\uDC69(?:\uD83C[\uDFFB-\uDFFF])|\uD83C\uDDF2(?:\uD83C[\uDDE6\uDDE8-\uDDED\uDDF0-\uDDFF])|\uD83C\uDDE6(?:\uD83C[\uDDE8-\uDDEC\uDDEE\uDDF1\uDDF2\uDDF4\uDDF6-\uDDFA\uDDFC\uDDFD\uDDFF])|\uD83C\uDDF0(?:\uD83C[\uDDEA\uDDEC-\uDDEE\uDDF2\uDDF3\uDDF5\uDDF7\uDDFC\uDDFE\uDDFF])|\uD83C\uDDED(?:\uD83C[\uDDF0\uDDF2\uDDF3\uDDF7\uDDF9\uDDFA])|\uD83C\uDDE9(?:\uD83C[\uDDEA\uDDEC\uDDEF\uDDF0\uDDF2\uDDF4\uDDFF])|\uD83C\uDDFE(?:\uD83C[\uDDEA\uDDF9])|\uD83C\uDDEC(?:\uD83C[\uDDE6\uDDE7\uDDE9-\uDDEE\uDDF1-\uDDF3\uDDF5-\uDDFA\uDDFC\uDDFE])|\uD83C\uDDF8(?:\uD83C[\uDDE6-\uDDEA\uDDEC-\uDDF4\uDDF7-\uDDF9\uDDFB\uDDFD-\uDDFF])|\uD83C\uDDEB(?:\uD83C[\uDDEE-\uDDF0\uDDF2\uDDF4\uDDF7])|\uD83C\uDDF5(?:\uD83C[\uDDE6\uDDEA-\uDDED\uDDF0-\uDDF3\uDDF7-\uDDF9\uDDFC\uDDFE])|\uD83C\uDDFB(?:\uD83C[\uDDE6\uDDE8\uDDEA\uDDEC\uDDEE\uDDF3\uDDFA])|\uD83C\uDDF3(?:\uD83C[\uDDE6\uDDE8\uDDEA-\uDDEC\uDDEE\uDDF1\uDDF4\uDDF5\uDDF7\uDDFA\uDDFF])|\uD83C\uDDE8(?:\uD83C[\uDDE6\uDDE8\uDDE9\uDDEB-\uDDEE\uDDF0-\uDDF5\uDDF7\uDDFA-\uDDFF])|\uD83C\uDDF1(?:\uD83C[\uDDE6-\uDDE8\uDDEE\uDDF0\uDDF7-\uDDFB\uDDFE])|\uD83C\uDDFF(?:\uD83C[\uDDE6\uDDF2\uDDFC])|\uD83C\uDDFC(?:\uD83C[\uDDEB\uDDF8])|\uD83C\uDDFA(?:\uD83C[\uDDE6\uDDEC\uDDF2\uDDF3\uDDF8\uDDFE\uDDFF])|\uD83C\uDDEE(?:\uD83C[\uDDE8-\uDDEA\uDDF1-\uDDF4\uDDF6-\uDDF9])|\uD83C\uDDEF(?:\uD83C[\uDDEA\uDDF2\uDDF4\uDDF5])|(?:\uD83C[\uDFC3\uDFC4\uDFCA]|\uD83D[\uDC6E\uDC71\uDC73\uDC77\uDC81\uDC82\uDC86\uDC87\uDE45-\uDE47\uDE4B\uDE4D\uDE4E\uDEA3\uDEB4-\uDEB6]|\uD83E[\uDD26\uDD37-\uDD39\uDD3D\uDD3E\uDDB8\uDDB9\uDDCD-\uDDCF\uDDD6-\uDDDD])(?:\uD83C[\uDFFB-\uDFFF])|(?:\u26F9|\uD83C[\uDFCB\uDFCC]|\uD83D\uDD75)(?:\uD83C[\uDFFB-\uDFFF])|(?:[\u261D\u270A-\u270D]|\uD83C[\uDF85\uDFC2\uDFC7]|\uD83D[\uDC42\uDC43\uDC46-\uDC50\uDC66\uDC67\uDC6B-\uDC6D\uDC70\uDC72\uDC74-\uDC76\uDC78\uDC7C\uDC83\uDC85\uDCAA\uDD74\uDD7A\uDD90\uDD95\uDD96\uDE4C\uDE4F\uDEC0\uDECC]|\uD83E[\uDD0F\uDD18-\uDD1C\uDD1E\uDD1F\uDD30-\uDD36\uDDB5\uDDB6\uDDBB\uDDD2-\uDDD5])(?:\uD83C[\uDFFB-\uDFFF])|(?:[\u231A\u231B\u23E9-\u23EC\u23F0\u23F3\u25FD\u25FE\u2614\u2615\u2648-\u2653\u267F\u2693\u26A1\u26AA\u26AB\u26BD\u26BE\u26C4\u26C5\u26CE\u26D4\u26EA\u26F2\u26F3\u26F5\u26FA\u26FD\u2705\u270A\u270B\u2728\u274C\u274E\u2753-\u2755\u2757\u2795-\u2797\u27B0\u27BF\u2B1B\u2B1C\u2B50\u2B55]|\uD83C[\uDC04\uDCCF\uDD8E\uDD91-\uDD9A\uDDE6-\uDDFF\uDE01\uDE1A\uDE2F\uDE32-\uDE36\uDE38-\uDE3A\uDE50\uDE51\uDF00-\uDF20\uDF2D-\uDF35\uDF37-\uDF7C\uDF7E-\uDF93\uDFA0-\uDFCA\uDFCF-\uDFD3\uDFE0-\uDFF0\uDFF4\uDFF8-\uDFFF]|\uD83D[\uDC00-\uDC3E\uDC40\uDC42-\uDCFC\uDCFF-\uDD3D\uDD4B-\uDD4E\uDD50-\uDD67\uDD7A\uDD95\uDD96\uDDA4\uDDFB-\uDE4F\uDE80-\uDEC5\uDECC\uDED0-\uDED2\uDED5\uDEEB\uDEEC\uDEF4-\uDEFA\uDFE0-\uDFEB]|\uD83E[\uDD0D-\uDD3A\uDD3C-\uDD45\uDD47-\uDD71\uDD73-\uDD76\uDD7A-\uDDA2\uDDA5-\uDDAA\uDDAE-\uDDCA\uDDCD-\uDDFF\uDE70-\uDE73\uDE78-\uDE7A\uDE80-\uDE82\uDE90-\uDE95])|(?:[#\*0-9\xA9\xAE\u203C\u2049\u2122\u2139\u2194-\u2199\u21A9\u21AA\u231A\u231B\u2328\u23CF\u23E9-\u23F3\u23F8-\u23FA\u24C2\u25AA\u25AB\u25B6\u25C0\u25FB-\u25FE\u2600-\u2604\u260E\u2611\u2614\u2615\u2618\u261D\u2620\u2622\u2623\u2626\u262A\u262E\u262F\u2638-\u263A\u2640\u2642\u2648-\u2653\u265F\u2660\u2663\u2665\u2666\u2668\u267B\u267E\u267F\u2692-\u2697\u2699\u269B\u269C\u26A0\u26A1\u26AA\u26AB\u26B0\u26B1\u26BD\u26BE\u26C4\u26C5\u26C8\u26CE\u26CF\u26D1\u26D3\u26D4\u26E9\u26EA\u26F0-\u26F5\u26F7-\u26FA\u26FD\u2702\u2705\u2708-\u270D\u270F\u2712\u2714\u2716\u271D\u2721\u2728\u2733\u2734\u2744\u2747\u274C\u274E\u2753-\u2755\u2757\u2763\u2764\u2795-\u2797\u27A1\u27B0\u27BF\u2934\u2935\u2B05-\u2B07\u2B1B\u2B1C\u2B50\u2B55\u3030\u303D\u3297\u3299]|\uD83C[\uDC04\uDCCF\uDD70\uDD71\uDD7E\uDD7F\uDD8E\uDD91-\uDD9A\uDDE6-\uDDFF\uDE01\uDE02\uDE1A\uDE2F\uDE32-\uDE3A\uDE50\uDE51\uDF00-\uDF21\uDF24-\uDF93\uDF96\uDF97\uDF99-\uDF9B\uDF9E-\uDFF0\uDFF3-\uDFF5\uDFF7-\uDFFF]|\uD83D[\uDC00-\uDCFD\uDCFF-\uDD3D\uDD49-\uDD4E\uDD50-\uDD67\uDD6F\uDD70\uDD73-\uDD7A\uDD87\uDD8A-\uDD8D\uDD90\uDD95\uDD96\uDDA4\uDDA5\uDDA8\uDDB1\uDDB2\uDDBC\uDDC2-\uDDC4\uDDD1-\uDDD3\uDDDC-\uDDDE\uDDE1\uDDE3\uDDE8\uDDEF\uDDF3\uDDFA-\uDE4F\uDE80-\uDEC5\uDECB-\uDED2\uDED5\uDEE0-\uDEE5\uDEE9\uDEEB\uDEEC\uDEF0\uDEF3-\uDEFA\uDFE0-\uDFEB]|\uD83E[\uDD0D-\uDD3A\uDD3C-\uDD45\uDD47-\uDD71\uDD73-\uDD76\uDD7A-\uDDA2\uDDA5-\uDDAA\uDDAE-\uDDCA\uDDCD-\uDDFF\uDE70-\uDE73\uDE78-\uDE7A\uDE80-\uDE82\uDE90-\uDE95])\uFE0F|(?:[\u261D\u26F9\u270A-\u270D]|\uD83C[\uDF85\uDFC2-\uDFC4\uDFC7\uDFCA-\uDFCC]|\uD83D[\uDC42\uDC43\uDC46-\uDC50\uDC66-\uDC78\uDC7C\uDC81-\uDC83\uDC85-\uDC87\uDC8F\uDC91\uDCAA\uDD74\uDD75\uDD7A\uDD90\uDD95\uDD96\uDE45-\uDE47\uDE4B-\uDE4F\uDEA3\uDEB4-\uDEB6\uDEC0\uDECC]|\uD83E[\uDD0F\uDD18-\uDD1F\uDD26\uDD30-\uDD39\uDD3C-\uDD3E\uDDB5\uDDB6\uDDB8\uDDB9\uDDBB\uDDCD-\uDDCF\uDDD1-\uDDDD])/g;
+};
diff --git a/node_modules/emoji-regex/package.json b/node_modules/emoji-regex/package.json
new file mode 100644
index 0000000..6d32352
--- /dev/null
+++ b/node_modules/emoji-regex/package.json
@@ -0,0 +1,50 @@
+{
+  "name": "emoji-regex",
+  "version": "8.0.0",
+  "description": "A regular expression to match all Emoji-only symbols as per the Unicode Standard.",
+  "homepage": "https://mths.be/emoji-regex",
+  "main": "index.js",
+  "types": "index.d.ts",
+  "keywords": [
+    "unicode",
+    "regex",
+    "regexp",
+    "regular expressions",
+    "code points",
+    "symbols",
+    "characters",
+    "emoji"
+  ],
+  "license": "MIT",
+  "author": {
+    "name": "Mathias Bynens",
+    "url": "https://mathiasbynens.be/"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/mathiasbynens/emoji-regex.git"
+  },
+  "bugs": "https://github.com/mathiasbynens/emoji-regex/issues",
+  "files": [
+    "LICENSE-MIT.txt",
+    "index.js",
+    "index.d.ts",
+    "text.js",
+    "es2015/index.js",
+    "es2015/text.js"
+  ],
+  "scripts": {
+    "build": "rm -rf -- es2015; babel src -d .; NODE_ENV=es2015 babel src -d ./es2015; node script/inject-sequences.js",
+    "test": "mocha",
+    "test:watch": "npm run test -- --watch"
+  },
+  "devDependencies": {
+    "@babel/cli": "^7.2.3",
+    "@babel/core": "^7.3.4",
+    "@babel/plugin-proposal-unicode-property-regex": "^7.2.0",
+    "@babel/preset-env": "^7.3.4",
+    "mocha": "^6.0.2",
+    "regexgen": "^1.3.0",
+    "unicode-12.0.0": "^0.7.9"
+  }
+}
diff --git a/node_modules/emoji-regex/text.js b/node_modules/emoji-regex/text.js
new file mode 100644
index 0000000..0a55ce2
--- /dev/null
+++ b/node_modules/emoji-regex/text.js
@@ -0,0 +1,6 @@
+"use strict";
+
+module.exports = function () {
+  // https://mths.be/emoji
+  return /\uD83C\uDFF4\uDB40\uDC67\uDB40\uDC62(?:\uDB40\uDC65\uDB40\uDC6E\uDB40\uDC67|\uDB40\uDC73\uDB40\uDC63\uDB40\uDC74|\uDB40\uDC77\uDB40\uDC6C\uDB40\uDC73)\uDB40\uDC7F|\uD83D\uDC68(?:\uD83C\uDFFC\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68\uD83C\uDFFB|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFF\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFB-\uDFFE])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFE\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFB-\uDFFD])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFD\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFB\uDFFC])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\u200D(?:\u2764\uFE0F\u200D(?:\uD83D\uDC8B\u200D)?\uD83D\uDC68|(?:\uD83D[\uDC68\uDC69])\u200D(?:\uD83D\uDC66\u200D\uD83D\uDC66|\uD83D\uDC67\u200D(?:\uD83D[\uDC66\uDC67]))|\uD83D\uDC66\u200D\uD83D\uDC66|\uD83D\uDC67\u200D(?:\uD83D[\uDC66\uDC67])|(?:\uD83D[\uDC68\uDC69])\u200D(?:\uD83D[\uDC66\uDC67])|[\u2695\u2696\u2708]\uFE0F|\uD83D[\uDC66\uDC67]|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|(?:\uD83C\uDFFB\u200D[\u2695\u2696\u2708]|\uD83C\uDFFF\u200D[\u2695\u2696\u2708]|\uD83C\uDFFE\u200D[\u2695\u2696\u2708]|\uD83C\uDFFD\u200D[\u2695\u2696\u2708]|\uD83C\uDFFC\u200D[\u2695\u2696\u2708])\uFE0F|\uD83C\uDFFB\u200D(?:\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C[\uDFFB-\uDFFF])|(?:\uD83E\uDDD1\uD83C\uDFFB\u200D\uD83E\uDD1D\u200D\uD83E\uDDD1|\uD83D\uDC69\uD83C\uDFFC\u200D\uD83E\uDD1D\u200D\uD83D\uDC69)\uD83C\uDFFB|\uD83E\uDDD1(?:\uD83C\uDFFF\u200D\uD83E\uDD1D\u200D\uD83E\uDDD1(?:\uD83C[\uDFFB-\uDFFF])|\u200D\uD83E\uDD1D\u200D\uD83E\uDDD1)|(?:\uD83E\uDDD1\uD83C\uDFFE\u200D\uD83E\uDD1D\u200D\uD83E\uDDD1|\uD83D\uDC69\uD83C\uDFFF\u200D\uD83E\uDD1D\u200D(?:\uD83D[\uDC68\uDC69]))(?:\uD83C[\uDFFB-\uDFFE])|(?:\uD83E\uDDD1\uD83C\uDFFC\u200D\uD83E\uDD1D\u200D\uD83E\uDDD1|\uD83D\uDC69\uD83C\uDFFD\u200D\uD83E\uDD1D\u200D\uD83D\uDC69)(?:\uD83C[\uDFFB\uDFFC])|\uD83D\uDC69(?:\uD83C\uDFFE\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFB-\uDFFD\uDFFF])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFC\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFB\uDFFD-\uDFFF])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFB\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFC-\uDFFF])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFD\u200D(?:\uD83E\uDD1D\u200D\uD83D\uDC68(?:\uD83C[\uDFFB\uDFFC\uDFFE\uDFFF])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\u200D(?:\u2764\uFE0F\u200D(?:\uD83D\uDC8B\u200D(?:\uD83D[\uDC68\uDC69])|\uD83D[\uDC68\uDC69])|\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD])|\uD83C\uDFFF\u200D(?:\uD83C[\uDF3E\uDF73\uDF93\uDFA4\uDFA8\uDFEB\uDFED]|\uD83D[\uDCBB\uDCBC\uDD27\uDD2C\uDE80\uDE92]|\uD83E[\uDDAF-\uDDB3\uDDBC\uDDBD]))|\uD83D\uDC69\u200D\uD83D\uDC69\u200D(?:\uD83D\uDC66\u200D\uD83D\uDC66|\uD83D\uDC67\u200D(?:\uD83D[\uDC66\uDC67]))|(?:\uD83E\uDDD1\uD83C\uDFFD\u200D\uD83E\uDD1D\u200D\uD83E\uDDD1|\uD83D\uDC69\uD83C\uDFFE\u200D\uD83E\uDD1D\u200D\uD83D\uDC69)(?:\uD83C[\uDFFB-\uDFFD])|\uD83D\uDC69\u200D\uD83D\uDC66\u200D\uD83D\uDC66|\uD83D\uDC69\u200D\uD83D\uDC69\u200D(?:\uD83D[\uDC66\uDC67])|(?:\uD83D\uDC41\uFE0F\u200D\uD83D\uDDE8|\uD83D\uDC69(?:\uD83C\uDFFF\u200D[\u2695\u2696\u2708]|\uD83C\uDFFE\u200D[\u2695\u2696\u2708]|\uD83C\uDFFC\u200D[\u2695\u2696\u2708]|\uD83C\uDFFB\u200D[\u2695\u2696\u2708]|\uD83C\uDFFD\u200D[\u2695\u2696\u2708]|\u200D[\u2695\u2696\u2708])|(?:(?:\u26F9|\uD83C[\uDFCB\uDFCC]|\uD83D\uDD75)\uFE0F|\uD83D\uDC6F|\uD83E[\uDD3C\uDDDE\uDDDF])\u200D[\u2640\u2642]|(?:\u26F9|\uD83C[\uDFCB\uDFCC]|\uD83D\uDD75)(?:\uD83C[\uDFFB-\uDFFF])\u200D[\u2640\u2642]|(?:\uD83C[\uDFC3\uDFC4\uDFCA]|\uD83D[\uDC6E\uDC71\uDC73\uDC77\uDC81\uDC82\uDC86\uDC87\uDE45-\uDE47\uDE4B\uDE4D\uDE4E\uDEA3\uDEB4-\uDEB6]|\uD83E[\uDD26\uDD37-\uDD39\uDD3D\uDD3E\uDDB8\uDDB9\uDDCD-\uDDCF\uDDD6-\uDDDD])(?:(?:\uD83C[\uDFFB-\uDFFF])\u200D[\u2640\u2642]|\u200D[\u2640\u2642])|\uD83C\uDFF4\u200D\u2620)\uFE0F|\uD83D\uDC69\u200D\uD83D\uDC67\u200D(?:\uD83D[\uDC66\uDC67])|\uD83C\uDFF3\uFE0F\u200D\uD83C\uDF08|\uD83D\uDC15\u200D\uD83E\uDDBA|\uD83D\uDC69\u200D\uD83D\uDC66|\uD83D\uDC69\u200D\uD83D\uDC67|\uD83C\uDDFD\uD83C\uDDF0|\uD83C\uDDF4\uD83C\uDDF2|\uD83C\uDDF6\uD83C\uDDE6|[#\*0-9]\uFE0F\u20E3|\uD83C\uDDE7(?:\uD83C[\uDDE6\uDDE7\uDDE9-\uDDEF\uDDF1-\uDDF4\uDDF6-\uDDF9\uDDFB\uDDFC\uDDFE\uDDFF])|\uD83C\uDDF9(?:\uD83C[\uDDE6\uDDE8\uDDE9\uDDEB-\uDDED\uDDEF-\uDDF4\uDDF7\uDDF9\uDDFB\uDDFC\uDDFF])|\uD83C\uDDEA(?:\uD83C[\uDDE6\uDDE8\uDDEA\uDDEC\uDDED\uDDF7-\uDDFA])|\uD83E\uDDD1(?:\uD83C[\uDFFB-\uDFFF])|\uD83C\uDDF7(?:\uD83C[\uDDEA\uDDF4\uDDF8\uDDFA\uDDFC])|\uD83D\uDC69(?:\uD83C[\uDFFB-\uDFFF])|\uD83C\uDDF2(?:\uD83C[\uDDE6\uDDE8-\uDDED\uDDF0-\uDDFF])|\uD83C\uDDE6(?:\uD83C[\uDDE8-\uDDEC\uDDEE\uDDF1\uDDF2\uDDF4\uDDF6-\uDDFA\uDDFC\uDDFD\uDDFF])|\uD83C\uDDF0(?:\uD83C[\uDDEA\uDDEC-\uDDEE\uDDF2\uDDF3\uDDF5\uDDF7\uDDFC\uDDFE\uDDFF])|\uD83C\uDDED(?:\uD83C[\uDDF0\uDDF2\uDDF3\uDDF7\uDDF9\uDDFA])|\uD83C\uDDE9(?:\uD83C[\uDDEA\uDDEC\uDDEF\uDDF0\uDDF2\uDDF4\uDDFF])|\uD83C\uDDFE(?:\uD83C[\uDDEA\uDDF9])|\uD83C\uDDEC(?:\uD83C[\uDDE6\uDDE7\uDDE9-\uDDEE\uDDF1-\uDDF3\uDDF5-\uDDFA\uDDFC\uDDFE])|\uD83C\uDDF8(?:\uD83C[\uDDE6-\uDDEA\uDDEC-\uDDF4\uDDF7-\uDDF9\uDDFB\uDDFD-\uDDFF])|\uD83C\uDDEB(?:\uD83C[\uDDEE-\uDDF0\uDDF2\uDDF4\uDDF7])|\uD83C\uDDF5(?:\uD83C[\uDDE6\uDDEA-\uDDED\uDDF0-\uDDF3\uDDF7-\uDDF9\uDDFC\uDDFE])|\uD83C\uDDFB(?:\uD83C[\uDDE6\uDDE8\uDDEA\uDDEC\uDDEE\uDDF3\uDDFA])|\uD83C\uDDF3(?:\uD83C[\uDDE6\uDDE8\uDDEA-\uDDEC\uDDEE\uDDF1\uDDF4\uDDF5\uDDF7\uDDFA\uDDFF])|\uD83C\uDDE8(?:\uD83C[\uDDE6\uDDE8\uDDE9\uDDEB-\uDDEE\uDDF0-\uDDF5\uDDF7\uDDFA-\uDDFF])|\uD83C\uDDF1(?:\uD83C[\uDDE6-\uDDE8\uDDEE\uDDF0\uDDF7-\uDDFB\uDDFE])|\uD83C\uDDFF(?:\uD83C[\uDDE6\uDDF2\uDDFC])|\uD83C\uDDFC(?:\uD83C[\uDDEB\uDDF8])|\uD83C\uDDFA(?:\uD83C[\uDDE6\uDDEC\uDDF2\uDDF3\uDDF8\uDDFE\uDDFF])|\uD83C\uDDEE(?:\uD83C[\uDDE8-\uDDEA\uDDF1-\uDDF4\uDDF6-\uDDF9])|\uD83C\uDDEF(?:\uD83C[\uDDEA\uDDF2\uDDF4\uDDF5])|(?:\uD83C[\uDFC3\uDFC4\uDFCA]|\uD83D[\uDC6E\uDC71\uDC73\uDC77\uDC81\uDC82\uDC86\uDC87\uDE45-\uDE47\uDE4B\uDE4D\uDE4E\uDEA3\uDEB4-\uDEB6]|\uD83E[\uDD26\uDD37-\uDD39\uDD3D\uDD3E\uDDB8\uDDB9\uDDCD-\uDDCF\uDDD6-\uDDDD])(?:\uD83C[\uDFFB-\uDFFF])|(?:\u26F9|\uD83C[\uDFCB\uDFCC]|\uD83D\uDD75)(?:\uD83C[\uDFFB-\uDFFF])|(?:[\u261D\u270A-\u270D]|\uD83C[\uDF85\uDFC2\uDFC7]|\uD83D[\uDC42\uDC43\uDC46-\uDC50\uDC66\uDC67\uDC6B-\uDC6D\uDC70\uDC72\uDC74-\uDC76\uDC78\uDC7C\uDC83\uDC85\uDCAA\uDD74\uDD7A\uDD90\uDD95\uDD96\uDE4C\uDE4F\uDEC0\uDECC]|\uD83E[\uDD0F\uDD18-\uDD1C\uDD1E\uDD1F\uDD30-\uDD36\uDDB5\uDDB6\uDDBB\uDDD2-\uDDD5])(?:\uD83C[\uDFFB-\uDFFF])|(?:[\u231A\u231B\u23E9-\u23EC\u23F0\u23F3\u25FD\u25FE\u2614\u2615\u2648-\u2653\u267F\u2693\u26A1\u26AA\u26AB\u26BD\u26BE\u26C4\u26C5\u26CE\u26D4\u26EA\u26F2\u26F3\u26F5\u26FA\u26FD\u2705\u270A\u270B\u2728\u274C\u274E\u2753-\u2755\u2757\u2795-\u2797\u27B0\u27BF\u2B1B\u2B1C\u2B50\u2B55]|\uD83C[\uDC04\uDCCF\uDD8E\uDD91-\uDD9A\uDDE6-\uDDFF\uDE01\uDE1A\uDE2F\uDE32-\uDE36\uDE38-\uDE3A\uDE50\uDE51\uDF00-\uDF20\uDF2D-\uDF35\uDF37-\uDF7C\uDF7E-\uDF93\uDFA0-\uDFCA\uDFCF-\uDFD3\uDFE0-\uDFF0\uDFF4\uDFF8-\uDFFF]|\uD83D[\uDC00-\uDC3E\uDC40\uDC42-\uDCFC\uDCFF-\uDD3D\uDD4B-\uDD4E\uDD50-\uDD67\uDD7A\uDD95\uDD96\uDDA4\uDDFB-\uDE4F\uDE80-\uDEC5\uDECC\uDED0-\uDED2\uDED5\uDEEB\uDEEC\uDEF4-\uDEFA\uDFE0-\uDFEB]|\uD83E[\uDD0D-\uDD3A\uDD3C-\uDD45\uDD47-\uDD71\uDD73-\uDD76\uDD7A-\uDDA2\uDDA5-\uDDAA\uDDAE-\uDDCA\uDDCD-\uDDFF\uDE70-\uDE73\uDE78-\uDE7A\uDE80-\uDE82\uDE90-\uDE95])|(?:[#\*0-9\xA9\xAE\u203C\u2049\u2122\u2139\u2194-\u2199\u21A9\u21AA\u231A\u231B\u2328\u23CF\u23E9-\u23F3\u23F8-\u23FA\u24C2\u25AA\u25AB\u25B6\u25C0\u25FB-\u25FE\u2600-\u2604\u260E\u2611\u2614\u2615\u2618\u261D\u2620\u2622\u2623\u2626\u262A\u262E\u262F\u2638-\u263A\u2640\u2642\u2648-\u2653\u265F\u2660\u2663\u2665\u2666\u2668\u267B\u267E\u267F\u2692-\u2697\u2699\u269B\u269C\u26A0\u26A1\u26AA\u26AB\u26B0\u26B1\u26BD\u26BE\u26C4\u26C5\u26C8\u26CE\u26CF\u26D1\u26D3\u26D4\u26E9\u26EA\u26F0-\u26F5\u26F7-\u26FA\u26FD\u2702\u2705\u2708-\u270D\u270F\u2712\u2714\u2716\u271D\u2721\u2728\u2733\u2734\u2744\u2747\u274C\u274E\u2753-\u2755\u2757\u2763\u2764\u2795-\u2797\u27A1\u27B0\u27BF\u2934\u2935\u2B05-\u2B07\u2B1B\u2B1C\u2B50\u2B55\u3030\u303D\u3297\u3299]|\uD83C[\uDC04\uDCCF\uDD70\uDD71\uDD7E\uDD7F\uDD8E\uDD91-\uDD9A\uDDE6-\uDDFF\uDE01\uDE02\uDE1A\uDE2F\uDE32-\uDE3A\uDE50\uDE51\uDF00-\uDF21\uDF24-\uDF93\uDF96\uDF97\uDF99-\uDF9B\uDF9E-\uDFF0\uDFF3-\uDFF5\uDFF7-\uDFFF]|\uD83D[\uDC00-\uDCFD\uDCFF-\uDD3D\uDD49-\uDD4E\uDD50-\uDD67\uDD6F\uDD70\uDD73-\uDD7A\uDD87\uDD8A-\uDD8D\uDD90\uDD95\uDD96\uDDA4\uDDA5\uDDA8\uDDB1\uDDB2\uDDBC\uDDC2-\uDDC4\uDDD1-\uDDD3\uDDDC-\uDDDE\uDDE1\uDDE3\uDDE8\uDDEF\uDDF3\uDDFA-\uDE4F\uDE80-\uDEC5\uDECB-\uDED2\uDED5\uDEE0-\uDEE5\uDEE9\uDEEB\uDEEC\uDEF0\uDEF3-\uDEFA\uDFE0-\uDFEB]|\uD83E[\uDD0D-\uDD3A\uDD3C-\uDD45\uDD47-\uDD71\uDD73-\uDD76\uDD7A-\uDDA2\uDDA5-\uDDAA\uDDAE-\uDDCA\uDDCD-\uDDFF\uDE70-\uDE73\uDE78-\uDE7A\uDE80-\uDE82\uDE90-\uDE95])\uFE0F?|(?:[\u261D\u26F9\u270A-\u270D]|\uD83C[\uDF85\uDFC2-\uDFC4\uDFC7\uDFCA-\uDFCC]|\uD83D[\uDC42\uDC43\uDC46-\uDC50\uDC66-\uDC78\uDC7C\uDC81-\uDC83\uDC85-\uDC87\uDC8F\uDC91\uDCAA\uDD74\uDD75\uDD7A\uDD90\uDD95\uDD96\uDE45-\uDE47\uDE4B-\uDE4F\uDEA3\uDEB4-\uDEB6\uDEC0\uDECC]|\uD83E[\uDD0F\uDD18-\uDD1F\uDD26\uDD30-\uDD39\uDD3C-\uDD3E\uDDB5\uDDB6\uDDB8\uDDB9\uDDBB\uDDCD-\uDDCF\uDDD1-\uDDDD])/g;
+};
diff --git a/node_modules/encoding/.prettierrc.js b/node_modules/encoding/.prettierrc.js
new file mode 100644
index 0000000..3f83654
--- /dev/null
+++ b/node_modules/encoding/.prettierrc.js
@@ -0,0 +1,8 @@
+module.exports = {
+    printWidth: 160,
+    tabWidth: 4,
+    singleQuote: true,
+    endOfLine: 'lf',
+    trailingComma: 'none',
+    arrowParens: 'avoid'
+};
diff --git a/node_modules/encoding/.travis.yml b/node_modules/encoding/.travis.yml
new file mode 100644
index 0000000..abc4f48
--- /dev/null
+++ b/node_modules/encoding/.travis.yml
@@ -0,0 +1,25 @@
+language: node_js
+sudo: false
+node_js:
+  - "0.10"
+  - 0.12
+  - iojs
+  - 4
+  - 5
+env:
+  - CXX=g++-4.8
+addons:
+  apt:
+    sources:
+      - ubuntu-toolchain-r-test
+    packages:
+      - g++-4.8
+notifications:
+  email:
+    - andris@kreata.ee
+  webhooks:
+    urls:
+      - https://webhooks.gitter.im/e/0ed18fd9b3e529b3c2cc
+    on_success: change  # options: [always|never|change] default: always
+    on_failure: always  # options: [always|never|change] default: always
+    on_start: false     # default: false
diff --git a/node_modules/encoding/LICENSE b/node_modules/encoding/LICENSE
new file mode 100644
index 0000000..33f5a9a
--- /dev/null
+++ b/node_modules/encoding/LICENSE
@@ -0,0 +1,16 @@
+Copyright (c) 2012-2014 Andris Reinman
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/node_modules/encoding/README.md b/node_modules/encoding/README.md
new file mode 100644
index 0000000..6188918
--- /dev/null
+++ b/node_modules/encoding/README.md
@@ -0,0 +1,41 @@
+# Encoding
+
+**encoding** is a simple wrapper around [iconv-lite](https://github.com/ashtuchkin/iconv-lite/) to convert strings from one encoding to another.
+
+[![Build Status](https://secure.travis-ci.org/andris9/encoding.svg)](http://travis-ci.org/andris9/Nodemailer)
+[![npm version](https://badge.fury.io/js/encoding.svg)](http://badge.fury.io/js/encoding)
+
+Initially _encoding_ was a wrapper around _node-iconv_ (main) and _iconv-lite_ (fallback) and was used as the encoding layer for Nodemailer/mailparser. Somehow it also ended up as a dependency for a bunch of other project, none of these actually using _node-iconv_. The loading mechanics caused issues for front-end projects and Nodemailer/malparser had moved on, so _node-iconv_ was removed.
+
+## Install
+
+Install through npm
+
+    npm install encoding
+
+## Usage
+
+Require the module
+
+    var encoding = require("encoding");
+
+Convert with encoding.convert()
+
+    var resultBuffer = encoding.convert(text, toCharset, fromCharset);
+
+Where
+
+-   **text** is either a Buffer or a String to be converted
+-   **toCharset** is the characterset to convert the string
+-   **fromCharset** (_optional_, defaults to UTF-8) is the source charset
+
+Output of the conversion is always a Buffer object.
+
+Example
+
+    var result = encoding.convert("ÕÄÖÜ", "Latin_1");
+    console.log(result); //<Buffer d5 c4 d6 dc>
+
+## License
+
+**MIT**
diff --git a/node_modules/encoding/lib/encoding.js b/node_modules/encoding/lib/encoding.js
new file mode 100644
index 0000000..865c24b
--- /dev/null
+++ b/node_modules/encoding/lib/encoding.js
@@ -0,0 +1,83 @@
+'use strict';
+
+var iconvLite = require('iconv-lite');
+
+// Expose to the world
+module.exports.convert = convert;
+
+/**
+ * Convert encoding of an UTF-8 string or a buffer
+ *
+ * @param {String|Buffer} str String to be converted
+ * @param {String} to Encoding to be converted to
+ * @param {String} [from='UTF-8'] Encoding to be converted from
+ * @return {Buffer} Encoded string
+ */
+function convert(str, to, from) {
+    from = checkEncoding(from || 'UTF-8');
+    to = checkEncoding(to || 'UTF-8');
+    str = str || '';
+
+    var result;
+
+    if (from !== 'UTF-8' && typeof str === 'string') {
+        str = Buffer.from(str, 'binary');
+    }
+
+    if (from === to) {
+        if (typeof str === 'string') {
+            result = Buffer.from(str);
+        } else {
+            result = str;
+        }
+    } else {
+        try {
+            result = convertIconvLite(str, to, from);
+        } catch (E) {
+            console.error(E);
+            result = str;
+        }
+    }
+
+    if (typeof result === 'string') {
+        result = Buffer.from(result, 'utf-8');
+    }
+
+    return result;
+}
+
+/**
+ * Convert encoding of astring with iconv-lite
+ *
+ * @param {String|Buffer} str String to be converted
+ * @param {String} to Encoding to be converted to
+ * @param {String} [from='UTF-8'] Encoding to be converted from
+ * @return {Buffer} Encoded string
+ */
+function convertIconvLite(str, to, from) {
+    if (to === 'UTF-8') {
+        return iconvLite.decode(str, from);
+    } else if (from === 'UTF-8') {
+        return iconvLite.encode(str, to);
+    } else {
+        return iconvLite.encode(iconvLite.decode(str, from), to);
+    }
+}
+
+/**
+ * Converts charset name if needed
+ *
+ * @param {String} name Character set
+ * @return {String} Character set name
+ */
+function checkEncoding(name) {
+    return (name || '')
+        .toString()
+        .trim()
+        .replace(/^latin[\-_]?(\d+)$/i, 'ISO-8859-$1')
+        .replace(/^win(?:dows)?[\-_]?(\d+)$/i, 'WINDOWS-$1')
+        .replace(/^utf[\-_]?(\d+)$/i, 'UTF-$1')
+        .replace(/^ks_c_5601\-1987$/i, 'CP949')
+        .replace(/^us[\-_]?ascii$/i, 'ASCII')
+        .toUpperCase();
+}
diff --git a/node_modules/encoding/node_modules/iconv-lite/.github/dependabot.yml b/node_modules/encoding/node_modules/iconv-lite/.github/dependabot.yml
new file mode 100644
index 0000000..e4a0e0a
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/.github/dependabot.yml
@@ -0,0 +1,11 @@
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    allow:
+      - dependency-type: production
diff --git a/node_modules/encoding/node_modules/iconv-lite/.idea/codeStyles/Project.xml b/node_modules/encoding/node_modules/iconv-lite/.idea/codeStyles/Project.xml
new file mode 100644
index 0000000..3f2688c
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/.idea/codeStyles/Project.xml
@@ -0,0 +1,47 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <HTMLCodeStyleSettings>
+      <option name="HTML_SPACE_INSIDE_EMPTY_TAG" value="true" />
+      <option name="HTML_ENFORCE_QUOTES" value="true" />
+    </HTMLCodeStyleSettings>
+    <JSCodeStyleSettings version="0">
+      <option name="FORCE_SEMICOLON_STYLE" value="true" />
+      <option name="SPACE_BEFORE_FUNCTION_LEFT_PARENTH" value="false" />
+      <option name="FORCE_QUOTE_STYlE" value="true" />
+      <option name="ENFORCE_TRAILING_COMMA" value="Remove" />
+      <option name="SPACES_WITHIN_OBJECT_LITERAL_BRACES" value="true" />
+      <option name="SPACES_WITHIN_IMPORTS" value="true" />
+    </JSCodeStyleSettings>
+    <TypeScriptCodeStyleSettings version="0">
+      <option name="FORCE_SEMICOLON_STYLE" value="true" />
+      <option name="SPACE_BEFORE_FUNCTION_LEFT_PARENTH" value="false" />
+      <option name="FORCE_QUOTE_STYlE" value="true" />
+      <option name="ENFORCE_TRAILING_COMMA" value="Remove" />
+      <option name="SPACES_WITHIN_OBJECT_LITERAL_BRACES" value="true" />
+      <option name="SPACES_WITHIN_IMPORTS" value="true" />
+    </TypeScriptCodeStyleSettings>
+    <VueCodeStyleSettings>
+      <option name="INTERPOLATION_NEW_LINE_AFTER_START_DELIMITER" value="false" />
+      <option name="INTERPOLATION_NEW_LINE_BEFORE_END_DELIMITER" value="false" />
+    </VueCodeStyleSettings>
+    <codeStyleSettings language="HTML">
+      <option name="SOFT_MARGINS" value="100" />
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="JavaScript">
+      <option name="SOFT_MARGINS" value="100" />
+    </codeStyleSettings>
+    <codeStyleSettings language="TypeScript">
+      <option name="SOFT_MARGINS" value="100" />
+    </codeStyleSettings>
+    <codeStyleSettings language="Vue">
+      <option name="SOFT_MARGINS" value="100" />
+      <indentOptions>
+        <option name="INDENT_SIZE" value="4" />
+        <option name="TAB_SIZE" value="4" />
+      </indentOptions>
+    </codeStyleSettings>
+  </code_scheme>
+</component>
\ No newline at end of file
diff --git a/node_modules/encoding/node_modules/iconv-lite/.idea/codeStyles/codeStyleConfig.xml b/node_modules/encoding/node_modules/iconv-lite/.idea/codeStyles/codeStyleConfig.xml
new file mode 100644
index 0000000..79ee123
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/.idea/codeStyles/codeStyleConfig.xml
@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+  </state>
+</component>
\ No newline at end of file
diff --git a/node_modules/encoding/node_modules/iconv-lite/.idea/iconv-lite.iml b/node_modules/encoding/node_modules/iconv-lite/.idea/iconv-lite.iml
new file mode 100644
index 0000000..0c8867d
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/.idea/iconv-lite.iml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/temp" />
+      <excludeFolder url="file://$MODULE_DIR$/.tmp" />
+      <excludeFolder url="file://$MODULE_DIR$/tmp" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/node_modules/encoding/node_modules/iconv-lite/.idea/inspectionProfiles/Project_Default.xml b/node_modules/encoding/node_modules/iconv-lite/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 0000000..03d9549
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="Eslint" enabled="true" level="WARNING" enabled_by_default="true" />
+  </profile>
+</component>
\ No newline at end of file
diff --git a/node_modules/encoding/node_modules/iconv-lite/.idea/modules.xml b/node_modules/encoding/node_modules/iconv-lite/.idea/modules.xml
new file mode 100644
index 0000000..5d24f2e
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/iconv-lite.iml" filepath="$PROJECT_DIR$/.idea/iconv-lite.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/node_modules/encoding/node_modules/iconv-lite/.idea/vcs.xml b/node_modules/encoding/node_modules/iconv-lite/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/node_modules/encoding/node_modules/iconv-lite/Changelog.md b/node_modules/encoding/node_modules/iconv-lite/Changelog.md
new file mode 100644
index 0000000..464549b
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/Changelog.md
@@ -0,0 +1,212 @@
+## 0.6.3 / 2021-05-23
+  * Fix HKSCS encoding to prefer Big5 codes if both Big5 and HKSCS codes are possible (#264)
+
+
+## 0.6.2 / 2020-07-08
+  * Support Uint8Array-s decoding without conversion to Buffers, plus fix an edge case.
+
+
+## 0.6.1 / 2020-06-28
+  * Support Uint8Array-s directly when decoding (#246, by @gyzerok)
+  * Unify package.json version ranges to be strictly semver-compatible (#241)
+  * Fix minor issue in UTF-32 decoder's endianness detection code.
+
+
+## 0.6.0 / 2020-06-08
+  * Updated 'gb18030' encoding to :2005 edition (see https://github.com/whatwg/encoding/issues/22).
+  * Removed `iconv.extendNodeEncodings()` mechanism. It was deprecated 5 years ago and didn't work 
+    in recent Node versions.
+  * Reworked Streaming API behavior in browser environments to fix #204. Streaming API will be 
+    excluded by default in browser packs, saving ~100Kb bundle size, unless enabled explicitly using 
+    `iconv.enableStreamingAPI(require('stream'))`.
+  * Updates to development environment & tests:
+    * Added ./test/webpack private package to test complex new use cases that need custom environment. 
+      It's tested as a separate job in Travis CI.
+    * Updated generation code for the new EUC-KR index file format from Encoding Standard.
+    * Removed Buffer() constructor in tests (#197 by @gabrielschulhof).
+
+
+## 0.5.2 / 2020-06-08
+  * Added `iconv.getEncoder()` and `iconv.getDecoder()` methods to typescript definitions (#229).
+  * Fixed semver version to 6.1.2 to support Node 8.x (by @tanandara).
+  * Capped iconv version to 2.x as 3.x has dropped support for older Node versions.
+  * Switched from instanbul to c8 for code coverage.
+
+
+## 0.5.1 / 2020-01-18
+
+  * Added cp720 encoding (#221, by @kr-deps)
+  * (minor) Changed Changelog.md formatting to use h2. 
+
+
+## 0.5.0 / 2019-06-26
+
+  * Added UTF-32 encoding, both little-endian and big-endian variants (UTF-32LE, UTF32-BE). If endianness
+    is not provided for decoding, it's deduced automatically from the stream using a heuristic similar to
+    what we use in UTF-16. (great work in #216 by @kshetline)
+  * Several minor updates to README (#217 by @oldj, plus some more)
+  * Added Node versions 10 and 12 to Travis test harness.
+
+
+## 0.4.24 / 2018-08-22
+
+  * Added MIK encoding (#196, by @Ivan-Kalatchev)
+
+
+## 0.4.23 / 2018-05-07
+
+  * Fix deprecation warning in Node v10 due to the last usage of `new Buffer` (#185, by @felixbuenemann)
+  * Switched from NodeBuffer to Buffer in typings (#155 by @felixfbecker, #186 by @larssn)
+
+
+## 0.4.22 / 2018-05-05
+
+  * Use older semver style for dependencies to be compatible with Node version 0.10 (#182, by @dougwilson)
+  * Fix tests to accomodate fixes in Node v10 (#182, by @dougwilson)
+
+
+## 0.4.21 / 2018-04-06
+
+  * Fix encoding canonicalization (#156)
+  * Fix the paths in the "browser" field in package.json (#174 by @LMLB)
+  * Removed "contributors" section in package.json - see Git history instead.
+
+
+## 0.4.20 / 2018-04-06
+
+  * Updated `new Buffer()` usages with recommended replacements as it's being deprecated in Node v10 (#176, #178 by @ChALkeR)
+
+
+## 0.4.19 / 2017-09-09
+
+  * Fixed iso8859-1 codec regression in handling untranslatable characters (#162, caused by #147)
+  * Re-generated windows1255 codec, because it was updated in iconv project
+  * Fixed grammar in error message when iconv-lite is loaded with encoding other than utf8
+
+
+## 0.4.18 / 2017-06-13
+
+  * Fixed CESU-8 regression in Node v8.
+
+
+## 0.4.17 / 2017-04-22
+
+ * Updated typescript definition file to support Angular 2 AoT mode (#153 by @larssn)
+
+
+## 0.4.16 / 2017-04-22
+
+ * Added support for React Native (#150)
+ * Changed iso8859-1 encoding to usine internal 'binary' encoding, as it's the same thing (#147 by @mscdex)
+ * Fixed typo in Readme (#138 by @jiangzhuo)
+ * Fixed build for Node v6.10+ by making correct version comparison
+ * Added a warning if iconv-lite is loaded not as utf-8 (see #142)
+
+
+## 0.4.15 / 2016-11-21
+
+ * Fixed typescript type definition (#137)
+
+
+## 0.4.14 / 2016-11-20
+
+ * Preparation for v1.0
+ * Added Node v6 and latest Node versions to Travis CI test rig
+ * Deprecated Node v0.8 support
+ * Typescript typings (@larssn)
+ * Fix encoding of Euro character in GB 18030 (inspired by @lygstate)
+ * Add ms prefix to dbcs windows encodings (@rokoroku)
+
+
+## 0.4.13 / 2015-10-01
+
+ * Fix silly mistake in deprecation notice.
+
+
+## 0.4.12 / 2015-09-26
+
+ * Node v4 support:
+   * Added CESU-8 decoding (#106)
+   * Added deprecation notice for `extendNodeEncodings`
+   * Added Travis tests for Node v4 and io.js latest (#105 by @Mithgol)
+
+
+## 0.4.11 / 2015-07-03
+
+ * Added CESU-8 encoding.
+
+
+## 0.4.10 / 2015-05-26
+
+ * Changed UTF-16 endianness heuristic to take into account any ASCII chars, not
+   just spaces. This should minimize the importance of "default" endianness.
+
+
+## 0.4.9 / 2015-05-24
+
+ * Streamlined BOM handling: strip BOM by default, add BOM when encoding if 
+   addBOM: true. Added docs to Readme.
+ * UTF16 now uses UTF16-LE by default.
+ * Fixed minor issue with big5 encoding.
+ * Added io.js testing on Travis; updated node-iconv version to test against.
+   Now we just skip testing SBCS encodings that node-iconv doesn't support.
+ * (internal refactoring) Updated codec interface to use classes.
+ * Use strict mode in all files.
+
+
+## 0.4.8 / 2015-04-14
+ 
+ * added alias UNICODE-1-1-UTF-7 for UTF-7 encoding (#94)
+
+
+## 0.4.7 / 2015-02-05
+
+ * stop official support of Node.js v0.8. Should still work, but no guarantees.
+   reason: Packages needed for testing are hard to get on Travis CI.
+ * work in environment where Object.prototype is monkey patched with enumerable 
+   props (#89).
+
+
+## 0.4.6 / 2015-01-12
+ 
+ * fix rare aliases of single-byte encodings (thanks @mscdex)
+ * double the timeout for dbcs tests to make them less flaky on travis
+
+
+## 0.4.5 / 2014-11-20
+
+ * fix windows-31j and x-sjis encoding support (@nleush)
+ * minor fix: undefined variable reference when internal error happens
+
+
+## 0.4.4 / 2014-07-16
+
+ * added encodings UTF-7 (RFC2152) and UTF-7-IMAP (RFC3501 Section 5.1.3)
+ * fixed streaming base64 encoding
+
+
+## 0.4.3 / 2014-06-14
+
+ * added encodings UTF-16BE and UTF-16 with BOM
+
+
+## 0.4.2 / 2014-06-12
+
+ * don't throw exception if `extendNodeEncodings()` is called more than once
+
+
+## 0.4.1 / 2014-06-11
+
+ * codepage 808 added
+
+
+## 0.4.0 / 2014-06-10
+
+ * code is rewritten from scratch
+ * all widespread encodings are supported
+ * streaming interface added
+ * browserify compatibility added
+ * (optional) extend core primitive encodings to make usage even simpler
+ * moved from vows to mocha as the testing framework
+
+
diff --git a/node_modules/encoding/node_modules/iconv-lite/LICENSE b/node_modules/encoding/node_modules/iconv-lite/LICENSE
new file mode 100644
index 0000000..d518d83
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/LICENSE
@@ -0,0 +1,21 @@
+Copyright (c) 2011 Alexander Shtuchkin
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/node_modules/encoding/node_modules/iconv-lite/README.md b/node_modules/encoding/node_modules/iconv-lite/README.md
new file mode 100644
index 0000000..3c97f87
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/README.md
@@ -0,0 +1,130 @@
+## iconv-lite: Pure JS character encoding conversion
+
+ * No need for native code compilation. Quick to install, works on Windows and in sandboxed environments like [Cloud9](http://c9.io).
+ * Used in popular projects like [Express.js (body_parser)](https://github.com/expressjs/body-parser), 
+   [Grunt](http://gruntjs.com/), [Nodemailer](http://www.nodemailer.com/), [Yeoman](http://yeoman.io/) and others.
+ * Faster than [node-iconv](https://github.com/bnoordhuis/node-iconv) (see below for performance comparison).
+ * Intuitive encode/decode API, including Streaming support.
+ * In-browser usage via [browserify](https://github.com/substack/node-browserify) or [webpack](https://webpack.js.org/) (~180kb gzip compressed with Buffer shim included).
+ * Typescript [type definition file](https://github.com/ashtuchkin/iconv-lite/blob/master/lib/index.d.ts) included.
+ * React Native is supported (need to install `stream` module to enable Streaming API).
+ * License: MIT.
+
+[![NPM Stats](https://nodei.co/npm/iconv-lite.png)](https://npmjs.org/package/iconv-lite/)  
+[![Build Status](https://travis-ci.org/ashtuchkin/iconv-lite.svg?branch=master)](https://travis-ci.org/ashtuchkin/iconv-lite)
+[![npm](https://img.shields.io/npm/v/iconv-lite.svg)](https://npmjs.org/package/iconv-lite/)
+[![npm downloads](https://img.shields.io/npm/dm/iconv-lite.svg)](https://npmjs.org/package/iconv-lite/)
+[![npm bundle size](https://img.shields.io/bundlephobia/min/iconv-lite.svg)](https://npmjs.org/package/iconv-lite/)
+
+## Usage
+### Basic API
+```javascript
+var iconv = require('iconv-lite');
+
+// Convert from an encoded buffer to a js string.
+str = iconv.decode(Buffer.from([0x68, 0x65, 0x6c, 0x6c, 0x6f]), 'win1251');
+
+// Convert from a js string to an encoded buffer.
+buf = iconv.encode("Sample input string", 'win1251');
+
+// Check if encoding is supported
+iconv.encodingExists("us-ascii")
+```
+
+### Streaming API
+```javascript
+
+// Decode stream (from binary data stream to js strings)
+http.createServer(function(req, res) {
+    var converterStream = iconv.decodeStream('win1251');
+    req.pipe(converterStream);
+
+    converterStream.on('data', function(str) {
+        console.log(str); // Do something with decoded strings, chunk-by-chunk.
+    });
+});
+
+// Convert encoding streaming example
+fs.createReadStream('file-in-win1251.txt')
+    .pipe(iconv.decodeStream('win1251'))
+    .pipe(iconv.encodeStream('ucs2'))
+    .pipe(fs.createWriteStream('file-in-ucs2.txt'));
+
+// Sugar: all encode/decode streams have .collect(cb) method to accumulate data.
+http.createServer(function(req, res) {
+    req.pipe(iconv.decodeStream('win1251')).collect(function(err, body) {
+        assert(typeof body == 'string');
+        console.log(body); // full request body string
+    });
+});
+```
+
+## Supported encodings
+
+ *  All node.js native encodings: utf8, ucs2 / utf16-le, ascii, binary, base64, hex.
+ *  Additional unicode encodings: utf16, utf16-be, utf-7, utf-7-imap, utf32, utf32-le, and utf32-be.
+ *  All widespread singlebyte encodings: Windows 125x family, ISO-8859 family, 
+    IBM/DOS codepages, Macintosh family, KOI8 family, all others supported by iconv library. 
+    Aliases like 'latin1', 'us-ascii' also supported.
+ *  All widespread multibyte encodings: CP932, CP936, CP949, CP950, GB2312, GBK, GB18030, Big5, Shift_JIS, EUC-JP.
+
+See [all supported encodings on wiki](https://github.com/ashtuchkin/iconv-lite/wiki/Supported-Encodings).
+
+Most singlebyte encodings are generated automatically from [node-iconv](https://github.com/bnoordhuis/node-iconv). Thank you Ben Noordhuis and libiconv authors!
+
+Multibyte encodings are generated from [Unicode.org mappings](http://www.unicode.org/Public/MAPPINGS/) and [WHATWG Encoding Standard mappings](http://encoding.spec.whatwg.org/). Thank you, respective authors!
+
+
+## Encoding/decoding speed
+
+Comparison with node-iconv module (1000x256kb, on MacBook Pro, Core i5/2.6 GHz, Node v0.12.0). 
+Note: your results may vary, so please always check on your hardware.
+
+    operation             iconv@2.1.4   iconv-lite@0.4.7
+    ----------------------------------------------------------
+    encode('win1251')     ~96 Mb/s      ~320 Mb/s
+    decode('win1251')     ~95 Mb/s      ~246 Mb/s
+
+## BOM handling
+
+ * Decoding: BOM is stripped by default, unless overridden by passing `stripBOM: false` in options
+   (f.ex. `iconv.decode(buf, enc, {stripBOM: false})`).
+   A callback might also be given as a `stripBOM` parameter - it'll be called if BOM character was actually found.
+ * If you want to detect UTF-8 BOM when decoding other encodings, use [node-autodetect-decoder-stream](https://github.com/danielgindi/node-autodetect-decoder-stream) module.
+ * Encoding: No BOM added, unless overridden by `addBOM: true` option.
+
+## UTF-16 Encodings
+
+This library supports UTF-16LE, UTF-16BE and UTF-16 encodings. First two are straightforward, but UTF-16 is trying to be
+smart about endianness in the following ways:
+ * Decoding: uses BOM and 'spaces heuristic' to determine input endianness. Default is UTF-16LE, but can be 
+   overridden with `defaultEncoding: 'utf-16be'` option. Strips BOM unless `stripBOM: false`.
+ * Encoding: uses UTF-16LE and writes BOM by default. Use `addBOM: false` to override.
+
+## UTF-32 Encodings
+
+This library supports UTF-32LE, UTF-32BE and UTF-32 encodings. Like the UTF-16 encoding above, UTF-32 defaults to UTF-32LE, but uses BOM and 'spaces heuristics' to determine input endianness. 
+ * The default of UTF-32LE can be overridden with the `defaultEncoding: 'utf-32be'` option. Strips BOM unless `stripBOM: false`.
+ * Encoding: uses UTF-32LE and writes BOM by default. Use `addBOM: false` to override. (`defaultEncoding: 'utf-32be'` can also be used here to change encoding.)
+
+## Other notes
+
+When decoding, be sure to supply a Buffer to decode() method, otherwise [bad things usually happen](https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding).  
+Untranslatable characters are set to � or ?. No transliteration is currently supported.  
+Node versions 0.10.31 and 0.11.13 are buggy, don't use them (see #65, #77).  
+
+## Testing
+
+```bash
+$ git clone git@github.com:ashtuchkin/iconv-lite.git
+$ cd iconv-lite
+$ npm install
+$ npm test
+    
+$ # To view performance:
+$ node test/performance.js
+
+$ # To view test coverage:
+$ npm run coverage
+$ open coverage/lcov-report/index.html
+```
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/dbcs-codec.js b/node_modules/encoding/node_modules/iconv-lite/encodings/dbcs-codec.js
new file mode 100644
index 0000000..fa83917
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/dbcs-codec.js
@@ -0,0 +1,597 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// Multibyte codec. In this scheme, a character is represented by 1 or more bytes.
+// Our codec supports UTF-16 surrogates, extensions for GB18030 and unicode sequences.
+// To save memory and loading time, we read table files only when requested.
+
+exports._dbcs = DBCSCodec;
+
+var UNASSIGNED = -1,
+    GB18030_CODE = -2,
+    SEQ_START  = -10,
+    NODE_START = -1000,
+    UNASSIGNED_NODE = new Array(0x100),
+    DEF_CHAR = -1;
+
+for (var i = 0; i < 0x100; i++)
+    UNASSIGNED_NODE[i] = UNASSIGNED;
+
+
+// Class DBCSCodec reads and initializes mapping tables.
+function DBCSCodec(codecOptions, iconv) {
+    this.encodingName = codecOptions.encodingName;
+    if (!codecOptions)
+        throw new Error("DBCS codec is called without the data.")
+    if (!codecOptions.table)
+        throw new Error("Encoding '" + this.encodingName + "' has no data.");
+
+    // Load tables.
+    var mappingTable = codecOptions.table();
+
+
+    // Decode tables: MBCS -> Unicode.
+
+    // decodeTables is a trie, encoded as an array of arrays of integers. Internal arrays are trie nodes and all have len = 256.
+    // Trie root is decodeTables[0].
+    // Values: >=  0 -> unicode character code. can be > 0xFFFF
+    //         == UNASSIGNED -> unknown/unassigned sequence.
+    //         == GB18030_CODE -> this is the end of a GB18030 4-byte sequence.
+    //         <= NODE_START -> index of the next node in our trie to process next byte.
+    //         <= SEQ_START  -> index of the start of a character code sequence, in decodeTableSeq.
+    this.decodeTables = [];
+    this.decodeTables[0] = UNASSIGNED_NODE.slice(0); // Create root node.
+
+    // Sometimes a MBCS char corresponds to a sequence of unicode chars. We store them as arrays of integers here. 
+    this.decodeTableSeq = [];
+
+    // Actual mapping tables consist of chunks. Use them to fill up decode tables.
+    for (var i = 0; i < mappingTable.length; i++)
+        this._addDecodeChunk(mappingTable[i]);
+
+    // Load & create GB18030 tables when needed.
+    if (typeof codecOptions.gb18030 === 'function') {
+        this.gb18030 = codecOptions.gb18030(); // Load GB18030 ranges.
+
+        // Add GB18030 common decode nodes.
+        var commonThirdByteNodeIdx = this.decodeTables.length;
+        this.decodeTables.push(UNASSIGNED_NODE.slice(0));
+
+        var commonFourthByteNodeIdx = this.decodeTables.length;
+        this.decodeTables.push(UNASSIGNED_NODE.slice(0));
+
+        // Fill out the tree
+        var firstByteNode = this.decodeTables[0];
+        for (var i = 0x81; i <= 0xFE; i++) {
+            var secondByteNode = this.decodeTables[NODE_START - firstByteNode[i]];
+            for (var j = 0x30; j <= 0x39; j++) {
+                if (secondByteNode[j] === UNASSIGNED) {
+                    secondByteNode[j] = NODE_START - commonThirdByteNodeIdx;
+                } else if (secondByteNode[j] > NODE_START) {
+                    throw new Error("gb18030 decode tables conflict at byte 2");
+                }
+
+                var thirdByteNode = this.decodeTables[NODE_START - secondByteNode[j]];
+                for (var k = 0x81; k <= 0xFE; k++) {
+                    if (thirdByteNode[k] === UNASSIGNED) {
+                        thirdByteNode[k] = NODE_START - commonFourthByteNodeIdx;
+                    } else if (thirdByteNode[k] === NODE_START - commonFourthByteNodeIdx) {
+                        continue;
+                    } else if (thirdByteNode[k] > NODE_START) {
+                        throw new Error("gb18030 decode tables conflict at byte 3");
+                    }
+
+                    var fourthByteNode = this.decodeTables[NODE_START - thirdByteNode[k]];
+                    for (var l = 0x30; l <= 0x39; l++) {
+                        if (fourthByteNode[l] === UNASSIGNED)
+                            fourthByteNode[l] = GB18030_CODE;
+                    }
+                }
+            }
+        }
+    }
+
+    this.defaultCharUnicode = iconv.defaultCharUnicode;
+
+    
+    // Encode tables: Unicode -> DBCS.
+
+    // `encodeTable` is array mapping from unicode char to encoded char. All its values are integers for performance.
+    // Because it can be sparse, it is represented as array of buckets by 256 chars each. Bucket can be null.
+    // Values: >=  0 -> it is a normal char. Write the value (if <=256 then 1 byte, if <=65536 then 2 bytes, etc.).
+    //         == UNASSIGNED -> no conversion found. Output a default char.
+    //         <= SEQ_START  -> it's an index in encodeTableSeq, see below. The character starts a sequence.
+    this.encodeTable = [];
+    
+    // `encodeTableSeq` is used when a sequence of unicode characters is encoded as a single code. We use a tree of
+    // objects where keys correspond to characters in sequence and leafs are the encoded dbcs values. A special DEF_CHAR key
+    // means end of sequence (needed when one sequence is a strict subsequence of another).
+    // Objects are kept separately from encodeTable to increase performance.
+    this.encodeTableSeq = [];
+
+    // Some chars can be decoded, but need not be encoded.
+    var skipEncodeChars = {};
+    if (codecOptions.encodeSkipVals)
+        for (var i = 0; i < codecOptions.encodeSkipVals.length; i++) {
+            var val = codecOptions.encodeSkipVals[i];
+            if (typeof val === 'number')
+                skipEncodeChars[val] = true;
+            else
+                for (var j = val.from; j <= val.to; j++)
+                    skipEncodeChars[j] = true;
+        }
+        
+    // Use decode trie to recursively fill out encode tables.
+    this._fillEncodeTable(0, 0, skipEncodeChars);
+
+    // Add more encoding pairs when needed.
+    if (codecOptions.encodeAdd) {
+        for (var uChar in codecOptions.encodeAdd)
+            if (Object.prototype.hasOwnProperty.call(codecOptions.encodeAdd, uChar))
+                this._setEncodeChar(uChar.charCodeAt(0), codecOptions.encodeAdd[uChar]);
+    }
+
+    this.defCharSB  = this.encodeTable[0][iconv.defaultCharSingleByte.charCodeAt(0)];
+    if (this.defCharSB === UNASSIGNED) this.defCharSB = this.encodeTable[0]['?'];
+    if (this.defCharSB === UNASSIGNED) this.defCharSB = "?".charCodeAt(0);
+}
+
+DBCSCodec.prototype.encoder = DBCSEncoder;
+DBCSCodec.prototype.decoder = DBCSDecoder;
+
+// Decoder helpers
+DBCSCodec.prototype._getDecodeTrieNode = function(addr) {
+    var bytes = [];
+    for (; addr > 0; addr >>>= 8)
+        bytes.push(addr & 0xFF);
+    if (bytes.length == 0)
+        bytes.push(0);
+
+    var node = this.decodeTables[0];
+    for (var i = bytes.length-1; i > 0; i--) { // Traverse nodes deeper into the trie.
+        var val = node[bytes[i]];
+
+        if (val == UNASSIGNED) { // Create new node.
+            node[bytes[i]] = NODE_START - this.decodeTables.length;
+            this.decodeTables.push(node = UNASSIGNED_NODE.slice(0));
+        }
+        else if (val <= NODE_START) { // Existing node.
+            node = this.decodeTables[NODE_START - val];
+        }
+        else
+            throw new Error("Overwrite byte in " + this.encodingName + ", addr: " + addr.toString(16));
+    }
+    return node;
+}
+
+
+DBCSCodec.prototype._addDecodeChunk = function(chunk) {
+    // First element of chunk is the hex mbcs code where we start.
+    var curAddr = parseInt(chunk[0], 16);
+
+    // Choose the decoding node where we'll write our chars.
+    var writeTable = this._getDecodeTrieNode(curAddr);
+    curAddr = curAddr & 0xFF;
+
+    // Write all other elements of the chunk to the table.
+    for (var k = 1; k < chunk.length; k++) {
+        var part = chunk[k];
+        if (typeof part === "string") { // String, write as-is.
+            for (var l = 0; l < part.length;) {
+                var code = part.charCodeAt(l++);
+                if (0xD800 <= code && code < 0xDC00) { // Decode surrogate
+                    var codeTrail = part.charCodeAt(l++);
+                    if (0xDC00 <= codeTrail && codeTrail < 0xE000)
+                        writeTable[curAddr++] = 0x10000 + (code - 0xD800) * 0x400 + (codeTrail - 0xDC00);
+                    else
+                        throw new Error("Incorrect surrogate pair in "  + this.encodingName + " at chunk " + chunk[0]);
+                }
+                else if (0x0FF0 < code && code <= 0x0FFF) { // Character sequence (our own encoding used)
+                    var len = 0xFFF - code + 2;
+                    var seq = [];
+                    for (var m = 0; m < len; m++)
+                        seq.push(part.charCodeAt(l++)); // Simple variation: don't support surrogates or subsequences in seq.
+
+                    writeTable[curAddr++] = SEQ_START - this.decodeTableSeq.length;
+                    this.decodeTableSeq.push(seq);
+                }
+                else
+                    writeTable[curAddr++] = code; // Basic char
+            }
+        } 
+        else if (typeof part === "number") { // Integer, meaning increasing sequence starting with prev character.
+            var charCode = writeTable[curAddr - 1] + 1;
+            for (var l = 0; l < part; l++)
+                writeTable[curAddr++] = charCode++;
+        }
+        else
+            throw new Error("Incorrect type '" + typeof part + "' given in "  + this.encodingName + " at chunk " + chunk[0]);
+    }
+    if (curAddr > 0xFF)
+        throw new Error("Incorrect chunk in "  + this.encodingName + " at addr " + chunk[0] + ": too long" + curAddr);
+}
+
+// Encoder helpers
+DBCSCodec.prototype._getEncodeBucket = function(uCode) {
+    var high = uCode >> 8; // This could be > 0xFF because of astral characters.
+    if (this.encodeTable[high] === undefined)
+        this.encodeTable[high] = UNASSIGNED_NODE.slice(0); // Create bucket on demand.
+    return this.encodeTable[high];
+}
+
+DBCSCodec.prototype._setEncodeChar = function(uCode, dbcsCode) {
+    var bucket = this._getEncodeBucket(uCode);
+    var low = uCode & 0xFF;
+    if (bucket[low] <= SEQ_START)
+        this.encodeTableSeq[SEQ_START-bucket[low]][DEF_CHAR] = dbcsCode; // There's already a sequence, set a single-char subsequence of it.
+    else if (bucket[low] == UNASSIGNED)
+        bucket[low] = dbcsCode;
+}
+
+DBCSCodec.prototype._setEncodeSequence = function(seq, dbcsCode) {
+    
+    // Get the root of character tree according to first character of the sequence.
+    var uCode = seq[0];
+    var bucket = this._getEncodeBucket(uCode);
+    var low = uCode & 0xFF;
+
+    var node;
+    if (bucket[low] <= SEQ_START) {
+        // There's already a sequence with  - use it.
+        node = this.encodeTableSeq[SEQ_START-bucket[low]];
+    }
+    else {
+        // There was no sequence object - allocate a new one.
+        node = {};
+        if (bucket[low] !== UNASSIGNED) node[DEF_CHAR] = bucket[low]; // If a char was set before - make it a single-char subsequence.
+        bucket[low] = SEQ_START - this.encodeTableSeq.length;
+        this.encodeTableSeq.push(node);
+    }
+
+    // Traverse the character tree, allocating new nodes as needed.
+    for (var j = 1; j < seq.length-1; j++) {
+        var oldVal = node[uCode];
+        if (typeof oldVal === 'object')
+            node = oldVal;
+        else {
+            node = node[uCode] = {}
+            if (oldVal !== undefined)
+                node[DEF_CHAR] = oldVal
+        }
+    }
+
+    // Set the leaf to given dbcsCode.
+    uCode = seq[seq.length-1];
+    node[uCode] = dbcsCode;
+}
+
+DBCSCodec.prototype._fillEncodeTable = function(nodeIdx, prefix, skipEncodeChars) {
+    var node = this.decodeTables[nodeIdx];
+    var hasValues = false;
+    var subNodeEmpty = {};
+    for (var i = 0; i < 0x100; i++) {
+        var uCode = node[i];
+        var mbCode = prefix + i;
+        if (skipEncodeChars[mbCode])
+            continue;
+
+        if (uCode >= 0) {
+            this._setEncodeChar(uCode, mbCode);
+            hasValues = true;
+        } else if (uCode <= NODE_START) {
+            var subNodeIdx = NODE_START - uCode;
+            if (!subNodeEmpty[subNodeIdx]) {  // Skip empty subtrees (they are too large in gb18030).
+                var newPrefix = (mbCode << 8) >>> 0;  // NOTE: '>>> 0' keeps 32-bit num positive.
+                if (this._fillEncodeTable(subNodeIdx, newPrefix, skipEncodeChars))
+                    hasValues = true;
+                else
+                    subNodeEmpty[subNodeIdx] = true;
+            }
+        } else if (uCode <= SEQ_START) {
+            this._setEncodeSequence(this.decodeTableSeq[SEQ_START - uCode], mbCode);
+            hasValues = true;
+        }
+    }
+    return hasValues;
+}
+
+
+
+// == Encoder ==================================================================
+
+function DBCSEncoder(options, codec) {
+    // Encoder state
+    this.leadSurrogate = -1;
+    this.seqObj = undefined;
+    
+    // Static data
+    this.encodeTable = codec.encodeTable;
+    this.encodeTableSeq = codec.encodeTableSeq;
+    this.defaultCharSingleByte = codec.defCharSB;
+    this.gb18030 = codec.gb18030;
+}
+
+DBCSEncoder.prototype.write = function(str) {
+    var newBuf = Buffer.alloc(str.length * (this.gb18030 ? 4 : 3)),
+        leadSurrogate = this.leadSurrogate,
+        seqObj = this.seqObj, nextChar = -1,
+        i = 0, j = 0;
+
+    while (true) {
+        // 0. Get next character.
+        if (nextChar === -1) {
+            if (i == str.length) break;
+            var uCode = str.charCodeAt(i++);
+        }
+        else {
+            var uCode = nextChar;
+            nextChar = -1;    
+        }
+
+        // 1. Handle surrogates.
+        if (0xD800 <= uCode && uCode < 0xE000) { // Char is one of surrogates.
+            if (uCode < 0xDC00) { // We've got lead surrogate.
+                if (leadSurrogate === -1) {
+                    leadSurrogate = uCode;
+                    continue;
+                } else {
+                    leadSurrogate = uCode;
+                    // Double lead surrogate found.
+                    uCode = UNASSIGNED;
+                }
+            } else { // We've got trail surrogate.
+                if (leadSurrogate !== -1) {
+                    uCode = 0x10000 + (leadSurrogate - 0xD800) * 0x400 + (uCode - 0xDC00);
+                    leadSurrogate = -1;
+                } else {
+                    // Incomplete surrogate pair - only trail surrogate found.
+                    uCode = UNASSIGNED;
+                }
+                
+            }
+        }
+        else if (leadSurrogate !== -1) {
+            // Incomplete surrogate pair - only lead surrogate found.
+            nextChar = uCode; uCode = UNASSIGNED; // Write an error, then current char.
+            leadSurrogate = -1;
+        }
+
+        // 2. Convert uCode character.
+        var dbcsCode = UNASSIGNED;
+        if (seqObj !== undefined && uCode != UNASSIGNED) { // We are in the middle of the sequence
+            var resCode = seqObj[uCode];
+            if (typeof resCode === 'object') { // Sequence continues.
+                seqObj = resCode;
+                continue;
+
+            } else if (typeof resCode == 'number') { // Sequence finished. Write it.
+                dbcsCode = resCode;
+
+            } else if (resCode == undefined) { // Current character is not part of the sequence.
+
+                // Try default character for this sequence
+                resCode = seqObj[DEF_CHAR];
+                if (resCode !== undefined) {
+                    dbcsCode = resCode; // Found. Write it.
+                    nextChar = uCode; // Current character will be written too in the next iteration.
+
+                } else {
+                    // TODO: What if we have no default? (resCode == undefined)
+                    // Then, we should write first char of the sequence as-is and try the rest recursively.
+                    // Didn't do it for now because no encoding has this situation yet.
+                    // Currently, just skip the sequence and write current char.
+                }
+            }
+            seqObj = undefined;
+        }
+        else if (uCode >= 0) {  // Regular character
+            var subtable = this.encodeTable[uCode >> 8];
+            if (subtable !== undefined)
+                dbcsCode = subtable[uCode & 0xFF];
+            
+            if (dbcsCode <= SEQ_START) { // Sequence start
+                seqObj = this.encodeTableSeq[SEQ_START-dbcsCode];
+                continue;
+            }
+
+            if (dbcsCode == UNASSIGNED && this.gb18030) {
+                // Use GB18030 algorithm to find character(s) to write.
+                var idx = findIdx(this.gb18030.uChars, uCode);
+                if (idx != -1) {
+                    var dbcsCode = this.gb18030.gbChars[idx] + (uCode - this.gb18030.uChars[idx]);
+                    newBuf[j++] = 0x81 + Math.floor(dbcsCode / 12600); dbcsCode = dbcsCode % 12600;
+                    newBuf[j++] = 0x30 + Math.floor(dbcsCode / 1260); dbcsCode = dbcsCode % 1260;
+                    newBuf[j++] = 0x81 + Math.floor(dbcsCode / 10); dbcsCode = dbcsCode % 10;
+                    newBuf[j++] = 0x30 + dbcsCode;
+                    continue;
+                }
+            }
+        }
+
+        // 3. Write dbcsCode character.
+        if (dbcsCode === UNASSIGNED)
+            dbcsCode = this.defaultCharSingleByte;
+        
+        if (dbcsCode < 0x100) {
+            newBuf[j++] = dbcsCode;
+        }
+        else if (dbcsCode < 0x10000) {
+            newBuf[j++] = dbcsCode >> 8;   // high byte
+            newBuf[j++] = dbcsCode & 0xFF; // low byte
+        }
+        else if (dbcsCode < 0x1000000) {
+            newBuf[j++] = dbcsCode >> 16;
+            newBuf[j++] = (dbcsCode >> 8) & 0xFF;
+            newBuf[j++] = dbcsCode & 0xFF;
+        } else {
+            newBuf[j++] = dbcsCode >>> 24;
+            newBuf[j++] = (dbcsCode >>> 16) & 0xFF;
+            newBuf[j++] = (dbcsCode >>> 8) & 0xFF;
+            newBuf[j++] = dbcsCode & 0xFF;
+        }
+    }
+
+    this.seqObj = seqObj;
+    this.leadSurrogate = leadSurrogate;
+    return newBuf.slice(0, j);
+}
+
+DBCSEncoder.prototype.end = function() {
+    if (this.leadSurrogate === -1 && this.seqObj === undefined)
+        return; // All clean. Most often case.
+
+    var newBuf = Buffer.alloc(10), j = 0;
+
+    if (this.seqObj) { // We're in the sequence.
+        var dbcsCode = this.seqObj[DEF_CHAR];
+        if (dbcsCode !== undefined) { // Write beginning of the sequence.
+            if (dbcsCode < 0x100) {
+                newBuf[j++] = dbcsCode;
+            }
+            else {
+                newBuf[j++] = dbcsCode >> 8;   // high byte
+                newBuf[j++] = dbcsCode & 0xFF; // low byte
+            }
+        } else {
+            // See todo above.
+        }
+        this.seqObj = undefined;
+    }
+
+    if (this.leadSurrogate !== -1) {
+        // Incomplete surrogate pair - only lead surrogate found.
+        newBuf[j++] = this.defaultCharSingleByte;
+        this.leadSurrogate = -1;
+    }
+    
+    return newBuf.slice(0, j);
+}
+
+// Export for testing
+DBCSEncoder.prototype.findIdx = findIdx;
+
+
+// == Decoder ==================================================================
+
+function DBCSDecoder(options, codec) {
+    // Decoder state
+    this.nodeIdx = 0;
+    this.prevBytes = [];
+
+    // Static data
+    this.decodeTables = codec.decodeTables;
+    this.decodeTableSeq = codec.decodeTableSeq;
+    this.defaultCharUnicode = codec.defaultCharUnicode;
+    this.gb18030 = codec.gb18030;
+}
+
+DBCSDecoder.prototype.write = function(buf) {
+    var newBuf = Buffer.alloc(buf.length*2),
+        nodeIdx = this.nodeIdx, 
+        prevBytes = this.prevBytes, prevOffset = this.prevBytes.length,
+        seqStart = -this.prevBytes.length, // idx of the start of current parsed sequence.
+        uCode;
+
+    for (var i = 0, j = 0; i < buf.length; i++) {
+        var curByte = (i >= 0) ? buf[i] : prevBytes[i + prevOffset];
+
+        // Lookup in current trie node.
+        var uCode = this.decodeTables[nodeIdx][curByte];
+
+        if (uCode >= 0) { 
+            // Normal character, just use it.
+        }
+        else if (uCode === UNASSIGNED) { // Unknown char.
+            // TODO: Callback with seq.
+            uCode = this.defaultCharUnicode.charCodeAt(0);
+            i = seqStart; // Skip one byte ('i' will be incremented by the for loop) and try to parse again.
+        }
+        else if (uCode === GB18030_CODE) {
+            if (i >= 3) {
+                var ptr = (buf[i-3]-0x81)*12600 + (buf[i-2]-0x30)*1260 + (buf[i-1]-0x81)*10 + (curByte-0x30);
+            } else {
+                var ptr = (prevBytes[i-3+prevOffset]-0x81)*12600 + 
+                          (((i-2 >= 0) ? buf[i-2] : prevBytes[i-2+prevOffset])-0x30)*1260 + 
+                          (((i-1 >= 0) ? buf[i-1] : prevBytes[i-1+prevOffset])-0x81)*10 + 
+                          (curByte-0x30);
+            }
+            var idx = findIdx(this.gb18030.gbChars, ptr);
+            uCode = this.gb18030.uChars[idx] + ptr - this.gb18030.gbChars[idx];
+        }
+        else if (uCode <= NODE_START) { // Go to next trie node.
+            nodeIdx = NODE_START - uCode;
+            continue;
+        }
+        else if (uCode <= SEQ_START) { // Output a sequence of chars.
+            var seq = this.decodeTableSeq[SEQ_START - uCode];
+            for (var k = 0; k < seq.length - 1; k++) {
+                uCode = seq[k];
+                newBuf[j++] = uCode & 0xFF;
+                newBuf[j++] = uCode >> 8;
+            }
+            uCode = seq[seq.length-1];
+        }
+        else
+            throw new Error("iconv-lite internal error: invalid decoding table value " + uCode + " at " + nodeIdx + "/" + curByte);
+
+        // Write the character to buffer, handling higher planes using surrogate pair.
+        if (uCode >= 0x10000) { 
+            uCode -= 0x10000;
+            var uCodeLead = 0xD800 | (uCode >> 10);
+            newBuf[j++] = uCodeLead & 0xFF;
+            newBuf[j++] = uCodeLead >> 8;
+
+            uCode = 0xDC00 | (uCode & 0x3FF);
+        }
+        newBuf[j++] = uCode & 0xFF;
+        newBuf[j++] = uCode >> 8;
+
+        // Reset trie node.
+        nodeIdx = 0; seqStart = i+1;
+    }
+
+    this.nodeIdx = nodeIdx;
+    this.prevBytes = (seqStart >= 0)
+        ? Array.prototype.slice.call(buf, seqStart)
+        : prevBytes.slice(seqStart + prevOffset).concat(Array.prototype.slice.call(buf));
+
+    return newBuf.slice(0, j).toString('ucs2');
+}
+
+DBCSDecoder.prototype.end = function() {
+    var ret = '';
+
+    // Try to parse all remaining chars.
+    while (this.prevBytes.length > 0) {
+        // Skip 1 character in the buffer.
+        ret += this.defaultCharUnicode;
+        var bytesArr = this.prevBytes.slice(1);
+
+        // Parse remaining as usual.
+        this.prevBytes = [];
+        this.nodeIdx = 0;
+        if (bytesArr.length > 0)
+            ret += this.write(bytesArr);
+    }
+
+    this.prevBytes = [];
+    this.nodeIdx = 0;
+    return ret;
+}
+
+// Binary search for GB18030. Returns largest i such that table[i] <= val.
+function findIdx(table, val) {
+    if (table[0] > val)
+        return -1;
+
+    var l = 0, r = table.length;
+    while (l < r-1) { // always table[l] <= val < table[r]
+        var mid = l + ((r-l+1) >> 1);
+        if (table[mid] <= val)
+            l = mid;
+        else
+            r = mid;
+    }
+    return l;
+}
+
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/dbcs-data.js b/node_modules/encoding/node_modules/iconv-lite/encodings/dbcs-data.js
new file mode 100644
index 0000000..0d17e58
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/dbcs-data.js
@@ -0,0 +1,188 @@
+"use strict";
+
+// Description of supported double byte encodings and aliases.
+// Tables are not require()-d until they are needed to speed up library load.
+// require()-s are direct to support Browserify.
+
+module.exports = {
+    
+    // == Japanese/ShiftJIS ====================================================
+    // All japanese encodings are based on JIS X set of standards:
+    // JIS X 0201 - Single-byte encoding of ASCII + ¥ + Kana chars at 0xA1-0xDF.
+    // JIS X 0208 - Main set of 6879 characters, placed in 94x94 plane, to be encoded by 2 bytes. 
+    //              Has several variations in 1978, 1983, 1990 and 1997.
+    // JIS X 0212 - Supplementary plane of 6067 chars in 94x94 plane. 1990. Effectively dead.
+    // JIS X 0213 - Extension and modern replacement of 0208 and 0212. Total chars: 11233.
+    //              2 planes, first is superset of 0208, second - revised 0212.
+    //              Introduced in 2000, revised 2004. Some characters are in Unicode Plane 2 (0x2xxxx)
+
+    // Byte encodings are:
+    //  * Shift_JIS: Compatible with 0201, uses not defined chars in top half as lead bytes for double-byte
+    //               encoding of 0208. Lead byte ranges: 0x81-0x9F, 0xE0-0xEF; Trail byte ranges: 0x40-0x7E, 0x80-0x9E, 0x9F-0xFC.
+    //               Windows CP932 is a superset of Shift_JIS. Some companies added more chars, notably KDDI.
+    //  * EUC-JP:    Up to 3 bytes per character. Used mostly on *nixes.
+    //               0x00-0x7F       - lower part of 0201
+    //               0x8E, 0xA1-0xDF - upper part of 0201
+    //               (0xA1-0xFE)x2   - 0208 plane (94x94).
+    //               0x8F, (0xA1-0xFE)x2 - 0212 plane (94x94).
+    //  * JIS X 208: 7-bit, direct encoding of 0208. Byte ranges: 0x21-0x7E (94 values). Uncommon.
+    //               Used as-is in ISO2022 family.
+    //  * ISO2022-JP: Stateful encoding, with escape sequences to switch between ASCII, 
+    //                0201-1976 Roman, 0208-1978, 0208-1983.
+    //  * ISO2022-JP-1: Adds esc seq for 0212-1990.
+    //  * ISO2022-JP-2: Adds esc seq for GB2313-1980, KSX1001-1992, ISO8859-1, ISO8859-7.
+    //  * ISO2022-JP-3: Adds esc seq for 0201-1976 Kana set, 0213-2000 Planes 1, 2.
+    //  * ISO2022-JP-2004: Adds 0213-2004 Plane 1.
+    //
+    // After JIS X 0213 appeared, Shift_JIS-2004, EUC-JISX0213 and ISO2022-JP-2004 followed, with just changing the planes.
+    //
+    // Overall, it seems that it's a mess :( http://www8.plala.or.jp/tkubota1/unicode-symbols-map2.html
+
+    'shiftjis': {
+        type: '_dbcs',
+        table: function() { return require('./tables/shiftjis.json') },
+        encodeAdd: {'\u00a5': 0x5C, '\u203E': 0x7E},
+        encodeSkipVals: [{from: 0xED40, to: 0xF940}],
+    },
+    'csshiftjis': 'shiftjis',
+    'mskanji': 'shiftjis',
+    'sjis': 'shiftjis',
+    'windows31j': 'shiftjis',
+    'ms31j': 'shiftjis',
+    'xsjis': 'shiftjis',
+    'windows932': 'shiftjis',
+    'ms932': 'shiftjis',
+    '932': 'shiftjis',
+    'cp932': 'shiftjis',
+
+    'eucjp': {
+        type: '_dbcs',
+        table: function() { return require('./tables/eucjp.json') },
+        encodeAdd: {'\u00a5': 0x5C, '\u203E': 0x7E},
+    },
+
+    // TODO: KDDI extension to Shift_JIS
+    // TODO: IBM CCSID 942 = CP932, but F0-F9 custom chars and other char changes.
+    // TODO: IBM CCSID 943 = Shift_JIS = CP932 with original Shift_JIS lower 128 chars.
+
+
+    // == Chinese/GBK ==========================================================
+    // http://en.wikipedia.org/wiki/GBK
+    // We mostly implement W3C recommendation: https://www.w3.org/TR/encoding/#gbk-encoder
+
+    // Oldest GB2312 (1981, ~7600 chars) is a subset of CP936
+    'gb2312': 'cp936',
+    'gb231280': 'cp936',
+    'gb23121980': 'cp936',
+    'csgb2312': 'cp936',
+    'csiso58gb231280': 'cp936',
+    'euccn': 'cp936',
+
+    // Microsoft's CP936 is a subset and approximation of GBK.
+    'windows936': 'cp936',
+    'ms936': 'cp936',
+    '936': 'cp936',
+    'cp936': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp936.json') },
+    },
+
+    // GBK (~22000 chars) is an extension of CP936 that added user-mapped chars and some other.
+    'gbk': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp936.json').concat(require('./tables/gbk-added.json')) },
+    },
+    'xgbk': 'gbk',
+    'isoir58': 'gbk',
+
+    // GB18030 is an algorithmic extension of GBK.
+    // Main source: https://www.w3.org/TR/encoding/#gbk-encoder
+    // http://icu-project.org/docs/papers/gb18030.html
+    // http://source.icu-project.org/repos/icu/data/trunk/charset/data/xml/gb-18030-2000.xml
+    // http://www.khngai.com/chinese/charmap/tblgbk.php?page=0
+    'gb18030': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp936.json').concat(require('./tables/gbk-added.json')) },
+        gb18030: function() { return require('./tables/gb18030-ranges.json') },
+        encodeSkipVals: [0x80],
+        encodeAdd: {'€': 0xA2E3},
+    },
+
+    'chinese': 'gb18030',
+
+
+    // == Korean ===============================================================
+    // EUC-KR, KS_C_5601 and KS X 1001 are exactly the same.
+    'windows949': 'cp949',
+    'ms949': 'cp949',
+    '949': 'cp949',
+    'cp949': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp949.json') },
+    },
+
+    'cseuckr': 'cp949',
+    'csksc56011987': 'cp949',
+    'euckr': 'cp949',
+    'isoir149': 'cp949',
+    'korean': 'cp949',
+    'ksc56011987': 'cp949',
+    'ksc56011989': 'cp949',
+    'ksc5601': 'cp949',
+
+
+    // == Big5/Taiwan/Hong Kong ================================================
+    // There are lots of tables for Big5 and cp950. Please see the following links for history:
+    // http://moztw.org/docs/big5/  http://www.haible.de/bruno/charsets/conversion-tables/Big5.html
+    // Variations, in roughly number of defined chars:
+    //  * Windows CP 950: Microsoft variant of Big5. Canonical: http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP950.TXT
+    //  * Windows CP 951: Microsoft variant of Big5-HKSCS-2001. Seems to be never public. http://me.abelcheung.org/articles/research/what-is-cp951/
+    //  * Big5-2003 (Taiwan standard) almost superset of cp950.
+    //  * Unicode-at-on (UAO) / Mozilla 1.8. Falling out of use on the Web. Not supported by other browsers.
+    //  * Big5-HKSCS (-2001, -2004, -2008). Hong Kong standard. 
+    //    many unicode code points moved from PUA to Supplementary plane (U+2XXXX) over the years.
+    //    Plus, it has 4 combining sequences.
+    //    Seems that Mozilla refused to support it for 10 yrs. https://bugzilla.mozilla.org/show_bug.cgi?id=162431 https://bugzilla.mozilla.org/show_bug.cgi?id=310299
+    //    because big5-hkscs is the only encoding to include astral characters in non-algorithmic way.
+    //    Implementations are not consistent within browsers; sometimes labeled as just big5.
+    //    MS Internet Explorer switches from big5 to big5-hkscs when a patch applied.
+    //    Great discussion & recap of what's going on https://bugzilla.mozilla.org/show_bug.cgi?id=912470#c31
+    //    In the encoder, it might make sense to support encoding old PUA mappings to Big5 bytes seq-s.
+    //    Official spec: http://www.ogcio.gov.hk/en/business/tech_promotion/ccli/terms/doc/2003cmp_2008.txt
+    //                   http://www.ogcio.gov.hk/tc/business/tech_promotion/ccli/terms/doc/hkscs-2008-big5-iso.txt
+    // 
+    // Current understanding of how to deal with Big5(-HKSCS) is in the Encoding Standard, http://encoding.spec.whatwg.org/#big5-encoder
+    // Unicode mapping (http://www.unicode.org/Public/MAPPINGS/OBSOLETE/EASTASIA/OTHER/BIG5.TXT) is said to be wrong.
+
+    'windows950': 'cp950',
+    'ms950': 'cp950',
+    '950': 'cp950',
+    'cp950': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp950.json') },
+    },
+
+    // Big5 has many variations and is an extension of cp950. We use Encoding Standard's as a consensus.
+    'big5': 'big5hkscs',
+    'big5hkscs': {
+        type: '_dbcs',
+        table: function() { return require('./tables/cp950.json').concat(require('./tables/big5-added.json')) },
+        encodeSkipVals: [
+            // Although Encoding Standard says we should avoid encoding to HKSCS area (See Step 1 of
+            // https://encoding.spec.whatwg.org/#index-big5-pointer), we still do it to increase compatibility with ICU.
+            // But if a single unicode point can be encoded both as HKSCS and regular Big5, we prefer the latter.
+            0x8e69, 0x8e6f, 0x8e7e, 0x8eab, 0x8eb4, 0x8ecd, 0x8ed0, 0x8f57, 0x8f69, 0x8f6e, 0x8fcb, 0x8ffe,
+            0x906d, 0x907a, 0x90c4, 0x90dc, 0x90f1, 0x91bf, 0x92af, 0x92b0, 0x92b1, 0x92b2, 0x92d1, 0x9447, 0x94ca,
+            0x95d9, 0x96fc, 0x9975, 0x9b76, 0x9b78, 0x9b7b, 0x9bc6, 0x9bde, 0x9bec, 0x9bf6, 0x9c42, 0x9c53, 0x9c62,
+            0x9c68, 0x9c6b, 0x9c77, 0x9cbc, 0x9cbd, 0x9cd0, 0x9d57, 0x9d5a, 0x9dc4, 0x9def, 0x9dfb, 0x9ea9, 0x9eef,
+            0x9efd, 0x9f60, 0x9fcb, 0xa077, 0xa0dc, 0xa0df, 0x8fcc, 0x92c8, 0x9644, 0x96ed,
+
+            // Step 2 of https://encoding.spec.whatwg.org/#index-big5-pointer: Use last pointer for U+2550, U+255E, U+2561, U+256A, U+5341, or U+5345
+            0xa2a4, 0xa2a5, 0xa2a7, 0xa2a6, 0xa2cc, 0xa2ce,
+        ],
+    },
+
+    'cnbig5': 'big5hkscs',
+    'csbig5': 'big5hkscs',
+    'xxbig5': 'big5hkscs',
+};
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/index.js b/node_modules/encoding/node_modules/iconv-lite/encodings/index.js
new file mode 100644
index 0000000..d95c244
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/index.js
@@ -0,0 +1,23 @@
+"use strict";
+
+// Update this array if you add/rename/remove files in this directory.
+// We support Browserify by skipping automatic module discovery and requiring modules directly.
+var modules = [
+    require("./internal"),
+    require("./utf32"),
+    require("./utf16"),
+    require("./utf7"),
+    require("./sbcs-codec"),
+    require("./sbcs-data"),
+    require("./sbcs-data-generated"),
+    require("./dbcs-codec"),
+    require("./dbcs-data"),
+];
+
+// Put all encoding/alias/codec definitions to single object and export it.
+for (var i = 0; i < modules.length; i++) {
+    var module = modules[i];
+    for (var enc in module)
+        if (Object.prototype.hasOwnProperty.call(module, enc))
+            exports[enc] = module[enc];
+}
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/internal.js b/node_modules/encoding/node_modules/iconv-lite/encodings/internal.js
new file mode 100644
index 0000000..dc1074f
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/internal.js
@@ -0,0 +1,198 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// Export Node.js internal encodings.
+
+module.exports = {
+    // Encodings
+    utf8:   { type: "_internal", bomAware: true},
+    cesu8:  { type: "_internal", bomAware: true},
+    unicode11utf8: "utf8",
+
+    ucs2:   { type: "_internal", bomAware: true},
+    utf16le: "ucs2",
+
+    binary: { type: "_internal" },
+    base64: { type: "_internal" },
+    hex:    { type: "_internal" },
+
+    // Codec.
+    _internal: InternalCodec,
+};
+
+//------------------------------------------------------------------------------
+
+function InternalCodec(codecOptions, iconv) {
+    this.enc = codecOptions.encodingName;
+    this.bomAware = codecOptions.bomAware;
+
+    if (this.enc === "base64")
+        this.encoder = InternalEncoderBase64;
+    else if (this.enc === "cesu8") {
+        this.enc = "utf8"; // Use utf8 for decoding.
+        this.encoder = InternalEncoderCesu8;
+
+        // Add decoder for versions of Node not supporting CESU-8
+        if (Buffer.from('eda0bdedb2a9', 'hex').toString() !== '💩') {
+            this.decoder = InternalDecoderCesu8;
+            this.defaultCharUnicode = iconv.defaultCharUnicode;
+        }
+    }
+}
+
+InternalCodec.prototype.encoder = InternalEncoder;
+InternalCodec.prototype.decoder = InternalDecoder;
+
+//------------------------------------------------------------------------------
+
+// We use node.js internal decoder. Its signature is the same as ours.
+var StringDecoder = require('string_decoder').StringDecoder;
+
+if (!StringDecoder.prototype.end) // Node v0.8 doesn't have this method.
+    StringDecoder.prototype.end = function() {};
+
+
+function InternalDecoder(options, codec) {
+    this.decoder = new StringDecoder(codec.enc);
+}
+
+InternalDecoder.prototype.write = function(buf) {
+    if (!Buffer.isBuffer(buf)) {
+        buf = Buffer.from(buf);
+    }
+
+    return this.decoder.write(buf);
+}
+
+InternalDecoder.prototype.end = function() {
+    return this.decoder.end();
+}
+
+
+//------------------------------------------------------------------------------
+// Encoder is mostly trivial
+
+function InternalEncoder(options, codec) {
+    this.enc = codec.enc;
+}
+
+InternalEncoder.prototype.write = function(str) {
+    return Buffer.from(str, this.enc);
+}
+
+InternalEncoder.prototype.end = function() {
+}
+
+
+//------------------------------------------------------------------------------
+// Except base64 encoder, which must keep its state.
+
+function InternalEncoderBase64(options, codec) {
+    this.prevStr = '';
+}
+
+InternalEncoderBase64.prototype.write = function(str) {
+    str = this.prevStr + str;
+    var completeQuads = str.length - (str.length % 4);
+    this.prevStr = str.slice(completeQuads);
+    str = str.slice(0, completeQuads);
+
+    return Buffer.from(str, "base64");
+}
+
+InternalEncoderBase64.prototype.end = function() {
+    return Buffer.from(this.prevStr, "base64");
+}
+
+
+//------------------------------------------------------------------------------
+// CESU-8 encoder is also special.
+
+function InternalEncoderCesu8(options, codec) {
+}
+
+InternalEncoderCesu8.prototype.write = function(str) {
+    var buf = Buffer.alloc(str.length * 3), bufIdx = 0;
+    for (var i = 0; i < str.length; i++) {
+        var charCode = str.charCodeAt(i);
+        // Naive implementation, but it works because CESU-8 is especially easy
+        // to convert from UTF-16 (which all JS strings are encoded in).
+        if (charCode < 0x80)
+            buf[bufIdx++] = charCode;
+        else if (charCode < 0x800) {
+            buf[bufIdx++] = 0xC0 + (charCode >>> 6);
+            buf[bufIdx++] = 0x80 + (charCode & 0x3f);
+        }
+        else { // charCode will always be < 0x10000 in javascript.
+            buf[bufIdx++] = 0xE0 + (charCode >>> 12);
+            buf[bufIdx++] = 0x80 + ((charCode >>> 6) & 0x3f);
+            buf[bufIdx++] = 0x80 + (charCode & 0x3f);
+        }
+    }
+    return buf.slice(0, bufIdx);
+}
+
+InternalEncoderCesu8.prototype.end = function() {
+}
+
+//------------------------------------------------------------------------------
+// CESU-8 decoder is not implemented in Node v4.0+
+
+function InternalDecoderCesu8(options, codec) {
+    this.acc = 0;
+    this.contBytes = 0;
+    this.accBytes = 0;
+    this.defaultCharUnicode = codec.defaultCharUnicode;
+}
+
+InternalDecoderCesu8.prototype.write = function(buf) {
+    var acc = this.acc, contBytes = this.contBytes, accBytes = this.accBytes, 
+        res = '';
+    for (var i = 0; i < buf.length; i++) {
+        var curByte = buf[i];
+        if ((curByte & 0xC0) !== 0x80) { // Leading byte
+            if (contBytes > 0) { // Previous code is invalid
+                res += this.defaultCharUnicode;
+                contBytes = 0;
+            }
+
+            if (curByte < 0x80) { // Single-byte code
+                res += String.fromCharCode(curByte);
+            } else if (curByte < 0xE0) { // Two-byte code
+                acc = curByte & 0x1F;
+                contBytes = 1; accBytes = 1;
+            } else if (curByte < 0xF0) { // Three-byte code
+                acc = curByte & 0x0F;
+                contBytes = 2; accBytes = 1;
+            } else { // Four or more are not supported for CESU-8.
+                res += this.defaultCharUnicode;
+            }
+        } else { // Continuation byte
+            if (contBytes > 0) { // We're waiting for it.
+                acc = (acc << 6) | (curByte & 0x3f);
+                contBytes--; accBytes++;
+                if (contBytes === 0) {
+                    // Check for overlong encoding, but support Modified UTF-8 (encoding NULL as C0 80)
+                    if (accBytes === 2 && acc < 0x80 && acc > 0)
+                        res += this.defaultCharUnicode;
+                    else if (accBytes === 3 && acc < 0x800)
+                        res += this.defaultCharUnicode;
+                    else
+                        // Actually add character.
+                        res += String.fromCharCode(acc);
+                }
+            } else { // Unexpected continuation byte
+                res += this.defaultCharUnicode;
+            }
+        }
+    }
+    this.acc = acc; this.contBytes = contBytes; this.accBytes = accBytes;
+    return res;
+}
+
+InternalDecoderCesu8.prototype.end = function() {
+    var res = 0;
+    if (this.contBytes > 0)
+        res += this.defaultCharUnicode;
+    return res;
+}
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/sbcs-codec.js b/node_modules/encoding/node_modules/iconv-lite/encodings/sbcs-codec.js
new file mode 100644
index 0000000..abac5ff
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/sbcs-codec.js
@@ -0,0 +1,72 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// Single-byte codec. Needs a 'chars' string parameter that contains 256 or 128 chars that
+// correspond to encoded bytes (if 128 - then lower half is ASCII). 
+
+exports._sbcs = SBCSCodec;
+function SBCSCodec(codecOptions, iconv) {
+    if (!codecOptions)
+        throw new Error("SBCS codec is called without the data.")
+    
+    // Prepare char buffer for decoding.
+    if (!codecOptions.chars || (codecOptions.chars.length !== 128 && codecOptions.chars.length !== 256))
+        throw new Error("Encoding '"+codecOptions.type+"' has incorrect 'chars' (must be of len 128 or 256)");
+    
+    if (codecOptions.chars.length === 128) {
+        var asciiString = "";
+        for (var i = 0; i < 128; i++)
+            asciiString += String.fromCharCode(i);
+        codecOptions.chars = asciiString + codecOptions.chars;
+    }
+
+    this.decodeBuf = Buffer.from(codecOptions.chars, 'ucs2');
+    
+    // Encoding buffer.
+    var encodeBuf = Buffer.alloc(65536, iconv.defaultCharSingleByte.charCodeAt(0));
+
+    for (var i = 0; i < codecOptions.chars.length; i++)
+        encodeBuf[codecOptions.chars.charCodeAt(i)] = i;
+
+    this.encodeBuf = encodeBuf;
+}
+
+SBCSCodec.prototype.encoder = SBCSEncoder;
+SBCSCodec.prototype.decoder = SBCSDecoder;
+
+
+function SBCSEncoder(options, codec) {
+    this.encodeBuf = codec.encodeBuf;
+}
+
+SBCSEncoder.prototype.write = function(str) {
+    var buf = Buffer.alloc(str.length);
+    for (var i = 0; i < str.length; i++)
+        buf[i] = this.encodeBuf[str.charCodeAt(i)];
+    
+    return buf;
+}
+
+SBCSEncoder.prototype.end = function() {
+}
+
+
+function SBCSDecoder(options, codec) {
+    this.decodeBuf = codec.decodeBuf;
+}
+
+SBCSDecoder.prototype.write = function(buf) {
+    // Strings are immutable in JS -> we use ucs2 buffer to speed up computations.
+    var decodeBuf = this.decodeBuf;
+    var newBuf = Buffer.alloc(buf.length*2);
+    var idx1 = 0, idx2 = 0;
+    for (var i = 0; i < buf.length; i++) {
+        idx1 = buf[i]*2; idx2 = i*2;
+        newBuf[idx2] = decodeBuf[idx1];
+        newBuf[idx2+1] = decodeBuf[idx1+1];
+    }
+    return newBuf.toString('ucs2');
+}
+
+SBCSDecoder.prototype.end = function() {
+}
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/sbcs-data-generated.js b/node_modules/encoding/node_modules/iconv-lite/encodings/sbcs-data-generated.js
new file mode 100644
index 0000000..9b48236
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/sbcs-data-generated.js
@@ -0,0 +1,451 @@
+"use strict";
+
+// Generated data for sbcs codec. Don't edit manually. Regenerate using generation/gen-sbcs.js script.
+module.exports = {
+  "437": "cp437",
+  "737": "cp737",
+  "775": "cp775",
+  "850": "cp850",
+  "852": "cp852",
+  "855": "cp855",
+  "856": "cp856",
+  "857": "cp857",
+  "858": "cp858",
+  "860": "cp860",
+  "861": "cp861",
+  "862": "cp862",
+  "863": "cp863",
+  "864": "cp864",
+  "865": "cp865",
+  "866": "cp866",
+  "869": "cp869",
+  "874": "windows874",
+  "922": "cp922",
+  "1046": "cp1046",
+  "1124": "cp1124",
+  "1125": "cp1125",
+  "1129": "cp1129",
+  "1133": "cp1133",
+  "1161": "cp1161",
+  "1162": "cp1162",
+  "1163": "cp1163",
+  "1250": "windows1250",
+  "1251": "windows1251",
+  "1252": "windows1252",
+  "1253": "windows1253",
+  "1254": "windows1254",
+  "1255": "windows1255",
+  "1256": "windows1256",
+  "1257": "windows1257",
+  "1258": "windows1258",
+  "28591": "iso88591",
+  "28592": "iso88592",
+  "28593": "iso88593",
+  "28594": "iso88594",
+  "28595": "iso88595",
+  "28596": "iso88596",
+  "28597": "iso88597",
+  "28598": "iso88598",
+  "28599": "iso88599",
+  "28600": "iso885910",
+  "28601": "iso885911",
+  "28603": "iso885913",
+  "28604": "iso885914",
+  "28605": "iso885915",
+  "28606": "iso885916",
+  "windows874": {
+    "type": "_sbcs",
+    "chars": "€����…�����������‘’“”•–—�������� กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  },
+  "win874": "windows874",
+  "cp874": "windows874",
+  "windows1250": {
+    "type": "_sbcs",
+    "chars": "€�‚�„…†‡�‰Š‹ŚŤŽŹ�‘’“”•–—�™š›śťžź ˇ˘Ł¤Ą¦§¨©Ş«¬­®Ż°±˛ł´µ¶·¸ąş»Ľ˝ľżŔÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐÖ×ŘŮÚŰÜÝŢßŕáâăäĺćçčéęëěíîďđńňóôőö÷řůúűüýţ˙"
+  },
+  "win1250": "windows1250",
+  "cp1250": "windows1250",
+  "windows1251": {
+    "type": "_sbcs",
+    "chars": "ЂЃ‚ѓ„…†‡€‰Љ‹ЊЌЋЏђ‘’“”•–—�™љ›њќћџ ЎўЈ¤Ґ¦§Ё©Є«¬­®Ї°±Ііґµ¶·ё№є»јЅѕїАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
+  },
+  "win1251": "windows1251",
+  "cp1251": "windows1251",
+  "windows1252": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰Š‹Œ�Ž��‘’“”•–—˜™š›œ�žŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "win1252": "windows1252",
+  "cp1252": "windows1252",
+  "windows1253": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡�‰�‹�����‘’“”•–—�™�›���� ΅Ά£¤¥¦§¨©�«¬­®―°±²³΄µ¶·ΈΉΊ»Ό½ΎΏΐΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡ�ΣΤΥΦΧΨΩΪΫάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ�"
+  },
+  "win1253": "windows1253",
+  "cp1253": "windows1253",
+  "windows1254": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰Š‹Œ����‘’“”•–—˜™š›œ��Ÿ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏĞÑÒÓÔÕÖ×ØÙÚÛÜİŞßàáâãäåæçèéêëìíîïğñòóôõö÷øùúûüışÿ"
+  },
+  "win1254": "windows1254",
+  "cp1254": "windows1254",
+  "windows1255": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰�‹�����‘’“”•–—˜™�›���� ¡¢£₪¥¦§¨©×«¬­®¯°±²³´µ¶·¸¹÷»¼½¾¿ְֱֲֳִֵֶַָֹֺֻּֽ־ֿ׀ׁׂ׃װױײ׳״�������אבגדהוזחטיךכלםמןנסעףפץצקרשת��‎‏�"
+  },
+  "win1255": "windows1255",
+  "cp1255": "windows1255",
+  "windows1256": {
+    "type": "_sbcs",
+    "chars": "€پ‚ƒ„…†‡ˆ‰ٹ‹Œچژڈگ‘’“”•–—ک™ڑ›œ‌‍ں ،¢£¤¥¦§¨©ھ«¬­®¯°±²³´µ¶·¸¹؛»¼½¾؟ہءآأؤإئابةتثجحخدذرزسشصض×طظعغـفقكàلâمنهوçèéêëىيîïًٌٍَôُِ÷ّùْûü‎‏ے"
+  },
+  "win1256": "windows1256",
+  "cp1256": "windows1256",
+  "windows1257": {
+    "type": "_sbcs",
+    "chars": "€�‚�„…†‡�‰�‹�¨ˇ¸�‘’“”•–—�™�›�¯˛� �¢£¤�¦§Ø©Ŗ«¬­®Æ°±²³´µ¶·ø¹ŗ»¼½¾æĄĮĀĆÄÅĘĒČÉŹĖĢĶĪĻŠŃŅÓŌÕÖ×ŲŁŚŪÜŻŽßąįāćäåęēčéźėģķīļšńņóōõö÷ųłśūüżž˙"
+  },
+  "win1257": "windows1257",
+  "cp1257": "windows1257",
+  "windows1258": {
+    "type": "_sbcs",
+    "chars": "€�‚ƒ„…†‡ˆ‰�‹Œ����‘’“”•–—˜™�›œ��Ÿ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
+  },
+  "win1258": "windows1258",
+  "cp1258": "windows1258",
+  "iso88591": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "cp28591": "iso88591",
+  "iso88592": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ą˘Ł¤ĽŚ§¨ŠŞŤŹ­ŽŻ°ą˛ł´ľśˇ¸šşťź˝žżŔÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐÖ×ŘŮÚŰÜÝŢßŕáâăäĺćçčéęëěíîďđńňóôőö÷řůúűüýţ˙"
+  },
+  "cp28592": "iso88592",
+  "iso88593": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ħ˘£¤�Ĥ§¨İŞĞĴ­�Ż°ħ²³´µĥ·¸ışğĵ½�żÀÁÂ�ÄĊĈÇÈÉÊËÌÍÎÏ�ÑÒÓÔĠÖ×ĜÙÚÛÜŬŜßàáâ�äċĉçèéêëìíîï�ñòóôġö÷ĝùúûüŭŝ˙"
+  },
+  "cp28593": "iso88593",
+  "iso88594": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄĸŖ¤ĨĻ§¨ŠĒĢŦ­Ž¯°ą˛ŗ´ĩļˇ¸šēģŧŊžŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎĪĐŅŌĶÔÕÖ×ØŲÚÛÜŨŪßāáâãäåæįčéęëėíîīđņōķôõö÷øųúûüũū˙"
+  },
+  "cp28594": "iso88594",
+  "iso88595": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ЁЂЃЄЅІЇЈЉЊЋЌ­ЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя№ёђѓєѕіїјљњћќ§ўџ"
+  },
+  "cp28595": "iso88595",
+  "iso88596": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ���¤�������،­�������������؛���؟�ءآأؤإئابةتثجحخدذرزسشصضطظعغ�����ـفقكلمنهوىيًٌٍَُِّْ�������������"
+  },
+  "cp28596": "iso88596",
+  "iso88597": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ‘’£€₯¦§¨©ͺ«¬­�―°±²³΄΅Ά·ΈΉΊ»Ό½ΎΏΐΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡ�ΣΤΥΦΧΨΩΪΫάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ�"
+  },
+  "cp28597": "iso88597",
+  "iso88598": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ �¢£¤¥¦§¨©×«¬­®¯°±²³´µ¶·¸¹÷»¼½¾��������������������������������‗אבגדהוזחטיךכלםמןנסעףפץצקרשת��‎‏�"
+  },
+  "cp28598": "iso88598",
+  "iso88599": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏĞÑÒÓÔÕÖ×ØÙÚÛÜİŞßàáâãäåæçèéêëìíîïğñòóôõö÷øùúûüışÿ"
+  },
+  "cp28599": "iso88599",
+  "iso885910": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄĒĢĪĨĶ§ĻĐŠŦŽ­ŪŊ°ąēģīĩķ·ļđšŧž―ūŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎÏÐŅŌÓÔÕÖŨØŲÚÛÜÝÞßāáâãäåæįčéęëėíîïðņōóôõöũøųúûüýþĸ"
+  },
+  "cp28600": "iso885910",
+  "iso885911": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  },
+  "cp28601": "iso885911",
+  "iso885913": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ”¢£¤„¦§Ø©Ŗ«¬­®Æ°±²³“µ¶·ø¹ŗ»¼½¾æĄĮĀĆÄÅĘĒČÉŹĖĢĶĪĻŠŃŅÓŌÕÖ×ŲŁŚŪÜŻŽßąįāćäåęēčéźėģķīļšńņóōõö÷ųłśūüżž’"
+  },
+  "cp28603": "iso885913",
+  "iso885914": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ḃḃ£ĊċḊ§Ẁ©ẂḋỲ­®ŸḞḟĠġṀṁ¶ṖẁṗẃṠỳẄẅṡÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏŴÑÒÓÔÕÖṪØÙÚÛÜÝŶßàáâãäåæçèéêëìíîïŵñòóôõöṫøùúûüýŷÿ"
+  },
+  "cp28604": "iso885914",
+  "iso885915": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£€¥Š§š©ª«¬­®¯°±²³Žµ¶·ž¹º»ŒœŸ¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "cp28605": "iso885915",
+  "iso885916": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄąŁ€„Š§š©Ș«Ź­źŻ°±ČłŽ”¶·žčș»ŒœŸżÀÁÂĂÄĆÆÇÈÉÊËÌÍÎÏĐŃÒÓÔŐÖŚŰÙÚÛÜĘȚßàáâăäćæçèéêëìíîïđńòóôőöśűùúûüęțÿ"
+  },
+  "cp28606": "iso885916",
+  "cp437": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm437": "cp437",
+  "csibm437": "cp437",
+  "cp737": {
+    "type": "_sbcs",
+    "chars": "ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩαβγδεζηθικλμνξοπρσςτυφχψ░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀ωάέήϊίόύϋώΆΈΉΊΌΎΏ±≥≤ΪΫ÷≈°∙·√ⁿ²■ "
+  },
+  "ibm737": "cp737",
+  "csibm737": "cp737",
+  "cp775": {
+    "type": "_sbcs",
+    "chars": "ĆüéāäģåćłēŖŗīŹÄÅÉæÆōöĢ¢ŚśÖÜø£ØפĀĪóŻżź”¦©®¬½¼Ł«»░▒▓│┤ĄČĘĖ╣║╗╝ĮŠ┐└┴┬├─┼ŲŪ╚╔╩╦╠═╬Žąčęėįšųūž┘┌█▄▌▐▀ÓßŌŃõÕµńĶķĻļņĒŅ’­±“¾¶§÷„°∙·¹³²■ "
+  },
+  "ibm775": "cp775",
+  "csibm775": "cp775",
+  "cp850": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø׃áíóúñѪº¿®¬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ðÐÊËÈıÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµþÞÚÛÙýݯ´­±‗¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm850": "cp850",
+  "csibm850": "cp850",
+  "cp852": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäůćçłëŐőîŹÄĆÉĹĺôöĽľŚśÖÜŤťŁ×čáíóúĄąŽžĘ꬟Ⱥ«»░▒▓│┤ÁÂĚŞ╣║╗╝Żż┐└┴┬├─┼Ăă╚╔╩╦╠═╬¤đĐĎËďŇÍÎě┘┌█▄ŢŮ▀ÓßÔŃńňŠšŔÚŕŰýÝţ´­˝˛ˇ˘§÷¸°¨˙űŘř■ "
+  },
+  "ibm852": "cp852",
+  "csibm852": "cp852",
+  "cp855": {
+    "type": "_sbcs",
+    "chars": "ђЂѓЃёЁєЄѕЅіІїЇјЈљЉњЊћЋќЌўЎџЏюЮъЪаАбБцЦдДеЕфФгГ«»░▒▓│┤хХиИ╣║╗╝йЙ┐└┴┬├─┼кК╚╔╩╦╠═╬¤лЛмМнНоОп┘┌█▄Пя▀ЯрРсСтТуУжЖвВьЬ№­ыЫзЗшШэЭщЩчЧ§■ "
+  },
+  "ibm855": "cp855",
+  "csibm855": "cp855",
+  "cp856": {
+    "type": "_sbcs",
+    "chars": "אבגדהוזחטיךכלםמןנסעףפץצקרשת�£�×����������®¬½¼�«»░▒▓│┤���©╣║╗╝¢¥┐└┴┬├─┼��╚╔╩╦╠═╬¤���������┘┌█▄¦�▀������µ�������¯´­±‗¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm856": "cp856",
+  "csibm856": "cp856",
+  "cp857": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîıÄÅÉæÆôöòûùİÖÜø£ØŞşáíóúñÑĞ𿮬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ºªÊËÈ�ÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµ�×ÚÛÙìÿ¯´­±�¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm857": "cp857",
+  "csibm857": "cp857",
+  "cp858": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø׃áíóúñѪº¿®¬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ðÐÊËÈ€ÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµþÞÚÛÙýݯ´­±‗¾¶§÷¸°¨·¹³²■ "
+  },
+  "ibm858": "cp858",
+  "csibm858": "cp858",
+  "cp860": {
+    "type": "_sbcs",
+    "chars": "ÇüéâãàÁçêÊèÍÔìÃÂÉÀÈôõòÚùÌÕÜ¢£Ù₧ÓáíóúñѪº¿Ò¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm860": "cp860",
+  "csibm860": "cp860",
+  "cp861": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèÐðÞÄÅÉæÆôöþûÝýÖÜø£Ø₧ƒáíóúÁÍÓÚ¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm861": "cp861",
+  "csibm861": "cp861",
+  "cp862": {
+    "type": "_sbcs",
+    "chars": "אבגדהוזחטיךכלםמןנסעףפץצקרשת¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm862": "cp862",
+  "csibm862": "cp862",
+  "cp863": {
+    "type": "_sbcs",
+    "chars": "ÇüéâÂà¶çêëèïî‗À§ÉÈÊôËÏûù¤ÔÜ¢£ÙÛƒ¦´óú¨¸³¯Î⌐¬½¼¾«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm863": "cp863",
+  "csibm863": "cp863",
+  "cp864": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$٪&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~°·∙√▒─│┼┤┬├┴┐┌└┘β∞φ±½¼≈«»ﻷﻸ��ﻻﻼ� ­ﺂ£¤ﺄ��ﺎﺏﺕﺙ،ﺝﺡﺥ٠١٢٣٤٥٦٧٨٩ﻑ؛ﺱﺵﺹ؟¢ﺀﺁﺃﺅﻊﺋﺍﺑﺓﺗﺛﺟﺣﺧﺩﺫﺭﺯﺳﺷﺻﺿﻁﻅﻋﻏ¦¬÷×ﻉـﻓﻗﻛﻟﻣﻧﻫﻭﻯﻳﺽﻌﻎﻍﻡﹽّﻥﻩﻬﻰﻲﻐﻕﻵﻶﻝﻙﻱ■�"
+  },
+  "ibm864": "cp864",
+  "csibm864": "cp864",
+  "cp865": {
+    "type": "_sbcs",
+    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø₧ƒáíóúñѪº¿⌐¬½¼¡«¤░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+  },
+  "ibm865": "cp865",
+  "csibm865": "cp865",
+  "cp866": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёЄєЇїЎў°∙·√№¤■ "
+  },
+  "ibm866": "cp866",
+  "csibm866": "cp866",
+  "cp869": {
+    "type": "_sbcs",
+    "chars": "������Ά�·¬¦‘’Έ―ΉΊΪΌ��ΎΫ©Ώ²³ά£έήίϊΐόύΑΒΓΔΕΖΗ½ΘΙ«»░▒▓│┤ΚΛΜΝ╣║╗╝ΞΟ┐└┴┬├─┼ΠΡ╚╔╩╦╠═╬ΣΤΥΦΧΨΩαβγ┘┌█▄δε▀ζηθικλμνξοπρσςτ΄­±υφχ§ψ΅°¨ωϋΰώ■ "
+  },
+  "ibm869": "cp869",
+  "csibm869": "cp869",
+  "cp922": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®‾°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏŠÑÒÓÔÕÖ×ØÙÚÛÜÝŽßàáâãäåæçèéêëìíîïšñòóôõö÷øùúûüýžÿ"
+  },
+  "ibm922": "cp922",
+  "csibm922": "cp922",
+  "cp1046": {
+    "type": "_sbcs",
+    "chars": "ﺈ×÷ﹱˆ■│─┐┌└┘ﹹﹻﹽﹿﹷﺊﻰﻳﻲﻎﻏﻐﻶﻸﻺﻼ ¤ﺋﺑﺗﺛﺟﺣ،­ﺧﺳ٠١٢٣٤٥٦٧٨٩ﺷ؛ﺻﺿﻊ؟ﻋءآأؤإئابةتثجحخدذرزسشصضطﻇعغﻌﺂﺄﺎﻓـفقكلمنهوىيًٌٍَُِّْﻗﻛﻟﻵﻷﻹﻻﻣﻧﻬﻩ�"
+  },
+  "ibm1046": "cp1046",
+  "csibm1046": "cp1046",
+  "cp1124": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ЁЂҐЄЅІЇЈЉЊЋЌ­ЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя№ёђґєѕіїјљњћќ§ўџ"
+  },
+  "ibm1124": "cp1124",
+  "csibm1124": "cp1124",
+  "cp1125": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёҐґЄєІіЇї·√№¤■ "
+  },
+  "ibm1125": "cp1125",
+  "csibm1125": "cp1125",
+  "cp1129": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§œ©ª«¬­®¯°±²³Ÿµ¶·Œ¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
+  },
+  "ibm1129": "cp1129",
+  "csibm1129": "cp1129",
+  "cp1133": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ກຂຄງຈສຊຍດຕຖທນບປຜຝພຟມຢຣລວຫອຮ���ຯະາຳິີຶືຸູຼັົຽ���ເແໂໃໄ່້໊໋໌ໍໆ�ໜໝ₭����������������໐໑໒໓໔໕໖໗໘໙��¢¬¦�"
+  },
+  "ibm1133": "cp1133",
+  "csibm1133": "cp1133",
+  "cp1161": {
+    "type": "_sbcs",
+    "chars": "��������������������������������่กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู้๊๋€฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛¢¬¦ "
+  },
+  "ibm1161": "cp1161",
+  "csibm1161": "cp1161",
+  "cp1162": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  },
+  "ibm1162": "cp1162",
+  "csibm1162": "cp1162",
+  "cp1163": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£€¥¦§œ©ª«¬­®¯°±²³Ÿµ¶·Œ¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
+  },
+  "ibm1163": "cp1163",
+  "csibm1163": "cp1163",
+  "maccroatian": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®Š™´¨≠ŽØ∞±≤≥∆µ∂∑∏š∫ªºΩžø¿¡¬√ƒ≈Ć«Č… ÀÃÕŒœĐ—“”‘’÷◊�©⁄¤‹›Æ»–·‚„‰ÂćÁčÈÍÎÏÌÓÔđÒÚÛÙıˆ˜¯πË˚¸Êæˇ"
+  },
+  "maccyrillic": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ†°¢£§•¶І®©™Ђђ≠Ѓѓ∞±≤≥іµ∂ЈЄєЇїЉљЊњјЅ¬√ƒ≈∆«»… ЋћЌќѕ–—“”‘’÷„ЎўЏџ№Ёёяабвгдежзийклмнопрстуфхцчшщъыьэю¤"
+  },
+  "macgreek": {
+    "type": "_sbcs",
+    "chars": "Ĺ²É³ÖÜ΅àâä΄¨çéèê룙î‰ôö¦­ùûü†ΓΔΘΛΞΠß®©ΣΪ§≠°·Α±≤≥¥ΒΕΖΗΙΚΜΦΫΨΩάΝ¬ΟΡ≈Τ«»… ΥΧΆΈœ–―“”‘’÷ΉΊΌΎέήίόΏύαβψδεφγηιξκλμνοπώρστθωςχυζϊϋΐΰ�"
+  },
+  "maciceland": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûüÝ°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤ÐðÞþý·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macroman": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›fifl‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macromania": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ĂŞ∞±≤≥¥µ∂∑∏π∫ªºΩăş¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›Ţţ‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macthai": {
+    "type": "_sbcs",
+    "chars": "«»…“”�•‘’� กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู​–—฿เแโใไๅๆ็่้๊๋์ํ™๏๐๑๒๓๔๕๖๗๘๙®©����"
+  },
+  "macturkish": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸĞğİıŞş‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙ�ˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "macukraine": {
+    "type": "_sbcs",
+    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ†°Ґ£§•¶І®©™Ђђ≠Ѓѓ∞±≤≥іµґЈЄєЇїЉљЊњјЅ¬√ƒ≈∆«»… ЋћЌќѕ–—“”‘’÷„ЎўЏџ№Ёёяабвгдежзийклмнопрстуфхцчшщъыьэю¤"
+  },
+  "koi8r": {
+    "type": "_sbcs",
+    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ё╓╔╕╖╗╘╙╚╛╜╝╞╟╠╡Ё╢╣╤╥╦╧╨╩╪╫╬©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "koi8u": {
+    "type": "_sbcs",
+    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ёє╔ії╗╘╙╚╛ґ╝╞╟╠╡ЁЄ╣ІЇ╦╧╨╩╪Ґ╬©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "koi8ru": {
+    "type": "_sbcs",
+    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ёє╔ії╗╘╙╚╛ґў╞╟╠╡ЁЄ╣ІЇ╦╧╨╩╪ҐЎ©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "koi8t": {
+    "type": "_sbcs",
+    "chars": "қғ‚Ғ„…†‡�‰ҳ‹ҲҷҶ�Қ‘’“”•–—�™�›�����ӯӮё¤ӣ¦§���«¬­®�°±²Ё�Ӣ¶·�№�»���©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
+  },
+  "armscii8": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ �և։)(»«—.՝,-֊…՜՛՞ԱաԲբԳգԴդԵեԶզԷէԸըԹթԺժԻիԼլԽխԾծԿկՀհՁձՂղՃճՄմՅյՆնՇշՈոՉչՊպՋջՌռՍսՎվՏտՐրՑցՒւՓփՔքՕօՖֆ՚�"
+  },
+  "rk1048": {
+    "type": "_sbcs",
+    "chars": "ЂЃ‚ѓ„…†‡€‰Љ‹ЊҚҺЏђ‘’“”•–—�™љ›њқһџ ҰұӘ¤Ө¦§Ё©Ғ«¬­®Ү°±Ііөµ¶·ё№ғ»әҢңүАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
+  },
+  "tcvn": {
+    "type": "_sbcs",
+    "chars": "\u0000ÚỤ\u0003ỪỬỮ\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010ỨỰỲỶỸÝỴ\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ÀẢÃÁẠẶẬÈẺẼÉẸỆÌỈĨÍỊÒỎÕÓỌỘỜỞỠỚỢÙỦŨ ĂÂÊÔƠƯĐăâêôơưđẶ̀̀̉̃́àảãáạẲằẳẵắẴẮẦẨẪẤỀặầẩẫấậèỂẻẽéẹềểễếệìỉỄẾỒĩíịòỔỏõóọồổỗốộờởỡớợùỖủũúụừửữứựỳỷỹýỵỐ"
+  },
+  "georgianacademy": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿აბგდევზთიკლმნოპჟრსტუფქღყშჩცძწჭხჯჰჱჲჳჴჵჶçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "georgianps": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿აბგდევზჱთიკლმნჲოპჟრსტჳუფქღყშჩცძწჭხჴჯჰჵæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
+  },
+  "pt154": {
+    "type": "_sbcs",
+    "chars": "ҖҒӮғ„…ҶҮҲүҠӢҢҚҺҸҗ‘’“”•–—ҳҷҡӣңқһҹ ЎўЈӨҘҰ§Ё©Ә«¬ӯ®Ҝ°ұІіҙө¶·ё№ә»јҪҫҝАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
+  },
+  "viscii": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001Ẳ\u0003\u0004ẴẪ\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013Ỷ\u0015\u0016\u0017\u0018Ỹ\u001a\u001b\u001c\u001dỴ\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ẠẮẰẶẤẦẨẬẼẸẾỀỂỄỆỐỒỔỖỘỢỚỜỞỊỎỌỈỦŨỤỲÕắằặấầẩậẽẹếềểễệốồổỗỠƠộờởịỰỨỪỬơớƯÀÁÂÃẢĂẳẵÈÉÊẺÌÍĨỳĐứÒÓÔạỷừửÙÚỹỵÝỡưàáâãảăữẫèéêẻìíĩỉđựòóôõỏọụùúũủýợỮ"
+  },
+  "iso646cn": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#¥%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}‾��������������������������������������������������������������������������������������������������������������������������������"
+  },
+  "iso646jp": {
+    "type": "_sbcs",
+    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[¥]^_`abcdefghijklmnopqrstuvwxyz{|}‾��������������������������������������������������������������������������������������������������������������������������������"
+  },
+  "hproman8": {
+    "type": "_sbcs",
+    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ÀÂÈÊËÎÏ´ˋˆ¨˜ÙÛ₤¯Ýý°ÇçÑñ¡¿¤£¥§ƒ¢âêôûáéóúàèòùäëöüÅîØÆåíøæÄìÖÜÉïßÔÁÃãÐðÍÌÓÒÕõŠšÚŸÿÞþ·µ¶¾—¼½ªº«■»±�"
+  },
+  "macintosh": {
+    "type": "_sbcs",
+    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›fifl‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
+  },
+  "ascii": {
+    "type": "_sbcs",
+    "chars": "��������������������������������������������������������������������������������������������������������������������������������"
+  },
+  "tis620": {
+    "type": "_sbcs",
+    "chars": "���������������������������������กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
+  }
+}
\ No newline at end of file
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/sbcs-data.js b/node_modules/encoding/node_modules/iconv-lite/encodings/sbcs-data.js
new file mode 100644
index 0000000..066f904
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/sbcs-data.js
@@ -0,0 +1,179 @@
+"use strict";
+
+// Manually added data to be used by sbcs codec in addition to generated one.
+
+module.exports = {
+    // Not supported by iconv, not sure why.
+    "10029": "maccenteuro",
+    "maccenteuro": {
+        "type": "_sbcs",
+        "chars": "ÄĀāÉĄÖÜáąČäčĆć鏟ĎíďĒēĖóėôöõúĚěü†°Ę£§•¶ß®©™ę¨≠ģĮįĪ≤≥īĶ∂∑łĻļĽľĹĺŅņѬ√ńŇ∆«»… ňŐÕőŌ–—“”‘’÷◊ōŔŕŘ‹›řŖŗŠ‚„šŚśÁŤťÍŽžŪÓÔūŮÚůŰűŲųÝýķŻŁżĢˇ"
+    },
+
+    "808": "cp808",
+    "ibm808": "cp808",
+    "cp808": {
+        "type": "_sbcs",
+        "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёЄєЇїЎў°∙·√№€■ "
+    },
+
+    "mik": {
+        "type": "_sbcs",
+        "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя└┴┬├─┼╣║╚╔╩╦╠═╬┐░▒▓│┤№§╗╝┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
+    },
+
+    "cp720": {
+        "type": "_sbcs",
+        "chars": "\x80\x81éâ\x84à\x86çêëèïî\x8d\x8e\x8f\x90\u0651\u0652ô¤ـûùءآأؤ£إئابةتثجحخدذرزسشص«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀ضطظعغفµقكلمنهوىي≡\u064b\u064c\u064d\u064e\u064f\u0650≈°∙·√ⁿ²■\u00a0"
+    },
+
+    // Aliases of generated encodings.
+    "ascii8bit": "ascii",
+    "usascii": "ascii",
+    "ansix34": "ascii",
+    "ansix341968": "ascii",
+    "ansix341986": "ascii",
+    "csascii": "ascii",
+    "cp367": "ascii",
+    "ibm367": "ascii",
+    "isoir6": "ascii",
+    "iso646us": "ascii",
+    "iso646irv": "ascii",
+    "us": "ascii",
+
+    "latin1": "iso88591",
+    "latin2": "iso88592",
+    "latin3": "iso88593",
+    "latin4": "iso88594",
+    "latin5": "iso88599",
+    "latin6": "iso885910",
+    "latin7": "iso885913",
+    "latin8": "iso885914",
+    "latin9": "iso885915",
+    "latin10": "iso885916",
+
+    "csisolatin1": "iso88591",
+    "csisolatin2": "iso88592",
+    "csisolatin3": "iso88593",
+    "csisolatin4": "iso88594",
+    "csisolatincyrillic": "iso88595",
+    "csisolatinarabic": "iso88596",
+    "csisolatingreek" : "iso88597",
+    "csisolatinhebrew": "iso88598",
+    "csisolatin5": "iso88599",
+    "csisolatin6": "iso885910",
+
+    "l1": "iso88591",
+    "l2": "iso88592",
+    "l3": "iso88593",
+    "l4": "iso88594",
+    "l5": "iso88599",
+    "l6": "iso885910",
+    "l7": "iso885913",
+    "l8": "iso885914",
+    "l9": "iso885915",
+    "l10": "iso885916",
+
+    "isoir14": "iso646jp",
+    "isoir57": "iso646cn",
+    "isoir100": "iso88591",
+    "isoir101": "iso88592",
+    "isoir109": "iso88593",
+    "isoir110": "iso88594",
+    "isoir144": "iso88595",
+    "isoir127": "iso88596",
+    "isoir126": "iso88597",
+    "isoir138": "iso88598",
+    "isoir148": "iso88599",
+    "isoir157": "iso885910",
+    "isoir166": "tis620",
+    "isoir179": "iso885913",
+    "isoir199": "iso885914",
+    "isoir203": "iso885915",
+    "isoir226": "iso885916",
+
+    "cp819": "iso88591",
+    "ibm819": "iso88591",
+
+    "cyrillic": "iso88595",
+
+    "arabic": "iso88596",
+    "arabic8": "iso88596",
+    "ecma114": "iso88596",
+    "asmo708": "iso88596",
+
+    "greek" : "iso88597",
+    "greek8" : "iso88597",
+    "ecma118" : "iso88597",
+    "elot928" : "iso88597",
+
+    "hebrew": "iso88598",
+    "hebrew8": "iso88598",
+
+    "turkish": "iso88599",
+    "turkish8": "iso88599",
+
+    "thai": "iso885911",
+    "thai8": "iso885911",
+
+    "celtic": "iso885914",
+    "celtic8": "iso885914",
+    "isoceltic": "iso885914",
+
+    "tis6200": "tis620",
+    "tis62025291": "tis620",
+    "tis62025330": "tis620",
+
+    "10000": "macroman",
+    "10006": "macgreek",
+    "10007": "maccyrillic",
+    "10079": "maciceland",
+    "10081": "macturkish",
+
+    "cspc8codepage437": "cp437",
+    "cspc775baltic": "cp775",
+    "cspc850multilingual": "cp850",
+    "cspcp852": "cp852",
+    "cspc862latinhebrew": "cp862",
+    "cpgr": "cp869",
+
+    "msee": "cp1250",
+    "mscyrl": "cp1251",
+    "msansi": "cp1252",
+    "msgreek": "cp1253",
+    "msturk": "cp1254",
+    "mshebr": "cp1255",
+    "msarab": "cp1256",
+    "winbaltrim": "cp1257",
+
+    "cp20866": "koi8r",
+    "20866": "koi8r",
+    "ibm878": "koi8r",
+    "cskoi8r": "koi8r",
+
+    "cp21866": "koi8u",
+    "21866": "koi8u",
+    "ibm1168": "koi8u",
+
+    "strk10482002": "rk1048",
+
+    "tcvn5712": "tcvn",
+    "tcvn57121": "tcvn",
+
+    "gb198880": "iso646cn",
+    "cn": "iso646cn",
+
+    "csiso14jisc6220ro": "iso646jp",
+    "jisc62201969ro": "iso646jp",
+    "jp": "iso646jp",
+
+    "cshproman8": "hproman8",
+    "r8": "hproman8",
+    "roman8": "hproman8",
+    "xroman8": "hproman8",
+    "ibm1051": "hproman8",
+
+    "mac": "macintosh",
+    "csmacintosh": "macintosh",
+};
+
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/tables/big5-added.json b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/big5-added.json
new file mode 100644
index 0000000..3c3d3c2
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/big5-added.json
@@ -0,0 +1,122 @@
+[
+["8740","䏰䰲䘃䖦䕸𧉧䵷䖳𧲱䳢𧳅㮕䜶䝄䱇䱀𤊿𣘗𧍒𦺋𧃒䱗𪍑䝏䗚䲅𧱬䴇䪤䚡𦬣爥𥩔𡩣𣸆𣽡晍囻"],
+["8767","綕夝𨮹㷴霴𧯯寛𡵞媤㘥𩺰嫑宷峼杮薓𩥅瑡璝㡵𡵓𣚞𦀡㻬"],
+["87a1","𥣞㫵竼龗𤅡𨤍𣇪𠪊𣉞䌊蒄龖鐯䤰蘓墖靊鈘秐稲晠権袝瑌篅枂稬剏遆㓦珄𥶹瓆鿇垳䤯呌䄱𣚎堘穲𧭥讏䚮𦺈䆁𥶙箮𢒼鿈𢓁𢓉𢓌鿉蔄𣖻䂴鿊䓡𪷿拁灮鿋"],
+["8840","㇀",4,"𠄌㇅𠃑𠃍㇆㇇𠃋𡿨㇈𠃊㇉㇊㇋㇌𠄎㇍㇎ĀÁǍÀĒÉĚÈŌÓǑÒ࿿Ê̄Ế࿿Ê̌ỀÊāáǎàɑēéěèīíǐìōóǒòūúǔùǖǘǚ"],
+["88a1","ǜü࿿ê̄ế࿿ê̌ềêɡ⏚⏛"],
+["8940","𪎩𡅅"],
+["8943","攊"],
+["8946","丽滝鵎釟"],
+["894c","𧜵撑会伨侨兖兴农凤务动医华发变团声处备夲头学实実岚庆总斉柾栄桥济炼电纤纬纺织经统缆缷艺苏药视设询车轧轮"],
+["89a1","琑糼緍楆竉刧"],
+["89ab","醌碸酞肼"],
+["89b0","贋胶𠧧"],
+["89b5","肟黇䳍鷉鸌䰾𩷶𧀎鸊𪄳㗁"],
+["89c1","溚舾甙"],
+["89c5","䤑马骏龙禇𨑬𡷊𠗐𢫦两亁亀亇亿仫伷㑌侽㹈倃傈㑽㒓㒥円夅凛凼刅争剹劐匧㗇厩㕑厰㕓参吣㕭㕲㚁咓咣咴咹哐哯唘唣唨㖘唿㖥㖿嗗㗅"],
+["8a40","𧶄唥"],
+["8a43","𠱂𠴕𥄫喐𢳆㧬𠍁蹆𤶸𩓥䁓𨂾睺𢰸㨴䟕𨅝𦧲𤷪擝𠵼𠾴𠳕𡃴撍蹾𠺖𠰋𠽤𢲩𨉖𤓓"],
+["8a64","𠵆𩩍𨃩䟴𤺧𢳂骲㩧𩗴㿭㔆𥋇𩟔𧣈𢵄鵮頕"],
+["8a76","䏙𦂥撴哣𢵌𢯊𡁷㧻𡁯"],
+["8aa1","𦛚𦜖𧦠擪𥁒𠱃蹨𢆡𨭌𠜱"],
+["8aac","䠋𠆩㿺塳𢶍"],
+["8ab2","𤗈𠓼𦂗𠽌𠶖啹䂻䎺"],
+["8abb","䪴𢩦𡂝膪飵𠶜捹㧾𢝵跀嚡摼㹃"],
+["8ac9","𪘁𠸉𢫏𢳉"],
+["8ace","𡃈𣧂㦒㨆𨊛㕸𥹉𢃇噒𠼱𢲲𩜠㒼氽𤸻"],
+["8adf","𧕴𢺋𢈈𪙛𨳍𠹺𠰴𦠜羓𡃏𢠃𢤹㗻𥇣𠺌𠾍𠺪㾓𠼰𠵇𡅏𠹌"],
+["8af6","𠺫𠮩𠵈𡃀𡄽㿹𢚖搲𠾭"],
+["8b40","𣏴𧘹𢯎𠵾𠵿𢱑𢱕㨘𠺘𡃇𠼮𪘲𦭐𨳒𨶙𨳊閪哌苄喹"],
+["8b55","𩻃鰦骶𧝞𢷮煀腭胬尜𦕲脴㞗卟𨂽醶𠻺𠸏𠹷𠻻㗝𤷫㘉𠳖嚯𢞵𡃉𠸐𠹸𡁸𡅈𨈇𡑕𠹹𤹐𢶤婔𡀝𡀞𡃵𡃶垜𠸑"],
+["8ba1","𧚔𨋍𠾵𠹻𥅾㜃𠾶𡆀𥋘𪊽𤧚𡠺𤅷𨉼墙剨㘚𥜽箲孨䠀䬬鼧䧧鰟鮍𥭴𣄽嗻㗲嚉丨夂𡯁屮靑𠂆乛亻㔾尣彑忄㣺扌攵歺氵氺灬爫丬犭𤣩罒礻糹罓𦉪㓁"],
+["8bde","𦍋耂肀𦘒𦥑卝衤见𧢲讠贝钅镸长门𨸏韦页风飞饣𩠐鱼鸟黄歯龜丷𠂇阝户钢"],
+["8c40","倻淾𩱳龦㷉袏𤅎灷峵䬠𥇍㕙𥴰愢𨨲辧釶熑朙玺𣊁𪄇㲋𡦀䬐磤琂冮𨜏䀉橣𪊺䈣蘏𠩯稪𩥇𨫪靕灍匤𢁾鏴盙𨧣龧矝亣俰傼丯众龨吴綋墒壐𡶶庒庙忂𢜒斋"],
+["8ca1","𣏹椙橃𣱣泿"],
+["8ca7","爀𤔅玌㻛𤨓嬕璹讃𥲤𥚕窓篬糃繬苸薗龩袐龪躹龫迏蕟駠鈡龬𨶹𡐿䁱䊢娚"],
+["8cc9","顨杫䉶圽"],
+["8cce","藖𤥻芿𧄍䲁𦵴嵻𦬕𦾾龭龮宖龯曧繛湗秊㶈䓃𣉖𢞖䎚䔶"],
+["8ce6","峕𣬚諹屸㴒𣕑嵸龲煗䕘𤃬𡸣䱷㥸㑊𠆤𦱁諌侴𠈹妿腬顖𩣺弻"],
+["8d40","𠮟"],
+["8d42","𢇁𨥭䄂䚻𩁹㼇龳𪆵䃸㟖䛷𦱆䅼𨚲𧏿䕭㣔𥒚䕡䔛䶉䱻䵶䗪㿈𤬏㙡䓞䒽䇭崾嵈嵖㷼㠏嶤嶹㠠㠸幂庽弥徃㤈㤔㤿㥍惗愽峥㦉憷憹懏㦸戬抐拥挘㧸嚱"],
+["8da1","㨃揢揻搇摚㩋擀崕嘡龟㪗斆㪽旿晓㫲暒㬢朖㭂枤栀㭘桊梄㭲㭱㭻椉楃牜楤榟榅㮼槖㯝橥橴橱檂㯬檙㯲檫檵櫔櫶殁毁毪汵沪㳋洂洆洦涁㳯涤涱渕渘温溆𨧀溻滢滚齿滨滩漤漴㵆𣽁澁澾㵪㵵熷岙㶊瀬㶑灐灔灯灿炉𠌥䏁㗱𠻘"],
+["8e40","𣻗垾𦻓焾𥟠㙎榢𨯩孴穉𥣡𩓙穥穽𥦬窻窰竂竃燑𦒍䇊竚竝竪䇯咲𥰁笋筕笩𥌎𥳾箢筯莜𥮴𦱿篐萡箒箸𥴠㶭𥱥蒒篺簆簵𥳁籄粃𤢂粦晽𤕸糉糇糦籴糳糵糎"],
+["8ea1","繧䔝𦹄絝𦻖璍綉綫焵綳緒𤁗𦀩緤㴓緵𡟹緥𨍭縝𦄡𦅚繮纒䌫鑬縧罀罁罇礶𦋐駡羗𦍑羣𡙡𠁨䕜𣝦䔃𨌺翺𦒉者耈耝耨耯𪂇𦳃耻耼聡𢜔䦉𦘦𣷣𦛨朥肧𨩈脇脚墰𢛶汿𦒘𤾸擧𡒊舘𡡞橓𤩥𤪕䑺舩𠬍𦩒𣵾俹𡓽蓢荢𦬊𤦧𣔰𡝳𣷸芪椛芳䇛"],
+["8f40","蕋苐茚𠸖𡞴㛁𣅽𣕚艻苢茘𣺋𦶣𦬅𦮗𣗎㶿茝嗬莅䔋𦶥莬菁菓㑾𦻔橗蕚㒖𦹂𢻯葘𥯤葱㷓䓤檧葊𣲵祘蒨𦮖𦹷𦹃蓞萏莑䒠蒓蓤𥲑䉀𥳀䕃蔴嫲𦺙䔧蕳䔖枿蘖"],
+["8fa1","𨘥𨘻藁𧂈蘂𡖂𧃍䕫䕪蘨㙈𡢢号𧎚虾蝱𪃸蟮𢰧螱蟚蠏噡虬桖䘏衅衆𧗠𣶹𧗤衞袜䙛袴袵揁装睷𧜏覇覊覦覩覧覼𨨥觧𧤤𧪽誜瞓釾誐𧩙竩𧬺𣾏䜓𧬸煼謌謟𥐰𥕥謿譌譍誩𤩺讐讛誯𡛟䘕衏貛𧵔𧶏貫㜥𧵓賖𧶘𧶽贒贃𡤐賛灜贑𤳉㻐起"],
+["9040","趩𨀂𡀔𤦊㭼𨆼𧄌竧躭躶軃鋔輙輭𨍥𨐒辥錃𪊟𠩐辳䤪𨧞𨔽𣶻廸𣉢迹𪀔𨚼𨔁𢌥㦀𦻗逷𨔼𧪾遡𨕬𨘋邨𨜓郄𨛦邮都酧㫰醩釄粬𨤳𡺉鈎沟鉁鉢𥖹銹𨫆𣲛𨬌𥗛"],
+["90a1","𠴱錬鍫𨫡𨯫炏嫃𨫢𨫥䥥鉄𨯬𨰹𨯿鍳鑛躼閅閦鐦閠濶䊹𢙺𨛘𡉼𣸮䧟氜陻隖䅬隣𦻕懚隶磵𨫠隽双䦡𦲸𠉴𦐐𩂯𩃥𤫑𡤕𣌊霱虂霶䨏䔽䖅𤫩灵孁霛靜𩇕靗孊𩇫靟鐥僐𣂷𣂼鞉鞟鞱鞾韀韒韠𥑬韮琜𩐳響韵𩐝𧥺䫑頴頳顋顦㬎𧅵㵑𠘰𤅜"],
+["9140","𥜆飊颷飈飇䫿𦴧𡛓喰飡飦飬鍸餹𤨩䭲𩡗𩤅駵騌騻騐驘𥜥㛄𩂱𩯕髠髢𩬅髴䰎鬔鬭𨘀倴鬴𦦨㣃𣁽魐魀𩴾婅𡡣鮎𤉋鰂鯿鰌𩹨鷔𩾷𪆒𪆫𪃡𪄣𪇟鵾鶃𪄴鸎梈"],
+["91a1","鷄𢅛𪆓𪈠𡤻𪈳鴹𪂹𪊴麐麕麞麢䴴麪麯𤍤黁㭠㧥㴝伲㞾𨰫鼂鼈䮖鐤𦶢鼗鼖鼹嚟嚊齅馸𩂋韲葿齢齩竜龎爖䮾𤥵𤦻煷𤧸𤍈𤩑玞𨯚𡣺禟𨥾𨸶鍩鏳𨩄鋬鎁鏋𨥬𤒹爗㻫睲穃烐𤑳𤏸煾𡟯炣𡢾𣖙㻇𡢅𥐯𡟸㜢𡛻𡠹㛡𡝴𡣑𥽋㜣𡛀坛𤨥𡏾𡊨"],
+["9240","𡏆𡒶蔃𣚦蔃葕𤦔𧅥𣸱𥕜𣻻𧁒䓴𣛮𩦝𦼦柹㜳㰕㷧塬𡤢栐䁗𣜿𤃡𤂋𤄏𦰡哋嚞𦚱嚒𠿟𠮨𠸍鏆𨬓鎜仸儫㠙𤐶亼𠑥𠍿佋侊𥙑婨𠆫𠏋㦙𠌊𠐔㐵伩𠋀𨺳𠉵諚𠈌亘"],
+["92a1","働儍侢伃𤨎𣺊佂倮偬傁俌俥偘僼兙兛兝兞湶𣖕𣸹𣺿浲𡢄𣺉冨凃𠗠䓝𠒣𠒒𠒑赺𨪜𠜎剙劤𠡳勡鍮䙺熌𤎌𠰠𤦬𡃤槑𠸝瑹㻞璙琔瑖玘䮎𤪼𤂍叐㖄爏𤃉喴𠍅响𠯆圝鉝雴鍦埝垍坿㘾壋媙𨩆𡛺𡝯𡜐娬妸銏婾嫏娒𥥆𡧳𡡡𤊕㛵洅瑃娡𥺃"],
+["9340","媁𨯗𠐓鏠璌𡌃焅䥲鐈𨧻鎽㞠尞岞幞幈𡦖𡥼𣫮廍孏𡤃𡤄㜁𡢠㛝𡛾㛓脪𨩇𡶺𣑲𨦨弌弎𡤧𡞫婫𡜻孄蘔𧗽衠恾𢡠𢘫忛㺸𢖯𢖾𩂈𦽳懀𠀾𠁆𢘛憙憘恵𢲛𢴇𤛔𩅍"],
+["93a1","摱𤙥𢭪㨩𢬢𣑐𩣪𢹸挷𪑛撶挱揑𤧣𢵧护𢲡搻敫楲㯴𣂎𣊭𤦉𣊫唍𣋠𡣙𩐿曎𣊉𣆳㫠䆐𥖄𨬢𥖏𡛼𥕛𥐥磮𣄃𡠪𣈴㑤𣈏𣆂𤋉暎𦴤晫䮓昰𧡰𡷫晣𣋒𣋡昞𥡲㣑𣠺𣞼㮙𣞢𣏾瓐㮖枏𤘪梶栞㯄檾㡣𣟕𤒇樳橒櫉欅𡤒攑梘橌㯗橺歗𣿀𣲚鎠鋲𨯪𨫋"],
+["9440","銉𨀞𨧜鑧涥漋𤧬浧𣽿㶏渄𤀼娽渊塇洤硂焻𤌚𤉶烱牐犇犔𤞏𤜥兹𤪤𠗫瑺𣻸𣙟𤩊𤤗𥿡㼆㺱𤫟𨰣𣼵悧㻳瓌琼鎇琷䒟𦷪䕑疃㽣𤳙𤴆㽘畕癳𪗆㬙瑨𨫌𤦫𤦎㫻"],
+["94a1","㷍𤩎㻿𤧅𤣳釺圲鍂𨫣𡡤僟𥈡𥇧睸𣈲眎眏睻𤚗𣞁㩞𤣰琸璛㺿𤪺𤫇䃈𤪖𦆮錇𥖁砞碍碈磒珐祙𧝁𥛣䄎禛蒖禥樭𣻺稺秴䅮𡛦䄲鈵秱𠵌𤦌𠊙𣶺𡝮㖗啫㕰㚪𠇔𠰍竢婙𢛵𥪯𥪜娍𠉛磰娪𥯆竾䇹籝籭䈑𥮳𥺼𥺦糍𤧹𡞰粎籼粮檲緜縇緓罎𦉡"],
+["9540","𦅜𧭈綗𥺂䉪𦭵𠤖柖𠁎𣗏埄𦐒𦏸𤥢翝笧𠠬𥫩𥵃笌𥸎駦虅驣樜𣐿㧢𤧷𦖭騟𦖠蒀𧄧𦳑䓪脷䐂胆脉腂𦞴飃𦩂艢艥𦩑葓𦶧蘐𧈛媆䅿𡡀嬫𡢡嫤𡣘蚠蜨𣶏蠭𧐢娂"],
+["95a1","衮佅袇袿裦襥襍𥚃襔𧞅𧞄𨯵𨯙𨮜𨧹㺭蒣䛵䛏㟲訽訜𩑈彍鈫𤊄旔焩烄𡡅鵭貟賩𧷜妚矃姰䍮㛔踪躧𤰉輰轊䋴汘澻𢌡䢛潹溋𡟚鯩㚵𤤯邻邗啱䤆醻鐄𨩋䁢𨫼鐧𨰝𨰻蓥訫閙閧閗閖𨴴瑅㻂𤣿𤩂𤏪㻧𣈥随𨻧𨹦𨹥㻌𤧭𤩸𣿮琒瑫㻼靁𩂰"],
+["9640","桇䨝𩂓𥟟靝鍨𨦉𨰦𨬯𦎾銺嬑譩䤼珹𤈛鞛靱餸𠼦巁𨯅𤪲頟𩓚鋶𩗗釥䓀𨭐𤩧𨭤飜𨩅㼀鈪䤥萔餻饍𧬆㷽馛䭯馪驜𨭥𥣈檏騡嫾騯𩣱䮐𩥈馼䮽䮗鍽塲𡌂堢𤦸"],
+["96a1","𡓨硄𢜟𣶸棅㵽鑘㤧慐𢞁𢥫愇鱏鱓鱻鰵鰐魿鯏𩸭鮟𪇵𪃾鴡䲮𤄄鸘䲰鴌𪆴𪃭𪃳𩤯鶥蒽𦸒𦿟𦮂藼䔳𦶤𦺄𦷰萠藮𦸀𣟗𦁤秢𣖜𣙀䤭𤧞㵢鏛銾鍈𠊿碹鉷鑍俤㑀遤𥕝砽硔碶硋𡝗𣇉𤥁㚚佲濚濙瀞瀞吔𤆵垻壳垊鴖埗焴㒯𤆬燫𦱀𤾗嬨𡞵𨩉"],
+["9740","愌嫎娋䊼𤒈㜬䭻𨧼鎻鎸𡣖𠼝葲𦳀𡐓𤋺𢰦𤏁妔𣶷𦝁綨𦅛𦂤𤦹𤦋𨧺鋥珢㻩璴𨭣𡢟㻡𤪳櫘珳珻㻖𤨾𤪔𡟙𤩦𠎧𡐤𤧥瑈𤤖炥𤥶銄珦鍟𠓾錱𨫎𨨖鎆𨯧𥗕䤵𨪂煫"],
+["97a1","𤥃𠳿嚤𠘚𠯫𠲸唂秄𡟺緾𡛂𤩐𡡒䔮鐁㜊𨫀𤦭妰𡢿𡢃𧒄媡㛢𣵛㚰鉟婹𨪁𡡢鍴㳍𠪴䪖㦊僴㵩㵌𡎜煵䋻𨈘渏𩃤䓫浗𧹏灧沯㳖𣿭𣸭渂漌㵯𠏵畑㚼㓈䚀㻚䡱姄鉮䤾轁𨰜𦯀堒埈㛖𡑒烾𤍢𤩱𢿣𡊰𢎽梹楧𡎘𣓥𧯴𣛟𨪃𣟖𣏺𤲟樚𣚭𦲷萾䓟䓎"],
+["9840","𦴦𦵑𦲂𦿞漗𧄉茽𡜺菭𦲀𧁓𡟛妉媂𡞳婡婱𡤅𤇼㜭姯𡜼㛇熎鎐暚𤊥婮娫𤊓樫𣻹𧜶𤑛𤋊焝𤉙𨧡侰𦴨峂𤓎𧹍𤎽樌𤉖𡌄炦焳𤏩㶥泟勇𤩏繥姫崯㷳彜𤩝𡟟綤萦"],
+["98a1","咅𣫺𣌀𠈔坾𠣕𠘙㿥𡾞𪊶瀃𩅛嵰玏糓𨩙𩐠俈翧狍猐𧫴猸猹𥛶獁獈㺩𧬘遬燵𤣲珡臶㻊県㻑沢国琙琞琟㻢㻰㻴㻺瓓㼎㽓畂畭畲疍㽼痈痜㿀癍㿗癴㿜発𤽜熈嘣覀塩䀝睃䀹条䁅㗛瞘䁪䁯属瞾矋売砘点砜䂨砹硇硑硦葈𥔵礳栃礲䄃"],
+["9940","䄉禑禙辻稆込䅧窑䆲窼艹䇄竏竛䇏両筢筬筻簒簛䉠䉺类粜䊌粸䊔糭输烀𠳏総緔緐緽羮羴犟䎗耠耥笹耮耱联㷌垴炠肷胩䏭脌猪脎脒畠脔䐁㬹腖腙腚"],
+["99a1","䐓堺腼膄䐥膓䐭膥埯臁臤艔䒏芦艶苊苘苿䒰荗险榊萅烵葤惣蒈䔄蒾蓡蓸蔐蔸蕒䔻蕯蕰藠䕷虲蚒蚲蛯际螋䘆䘗袮裿褤襇覑𧥧訩訸誔誴豑賔賲贜䞘塟跃䟭仮踺嗘坔蹱嗵躰䠷軎転軤軭軲辷迁迊迌逳駄䢭飠鈓䤞鈨鉘鉫銱銮銿"],
+["9a40","鋣鋫鋳鋴鋽鍃鎄鎭䥅䥑麿鐗匁鐝鐭鐾䥪鑔鑹锭関䦧间阳䧥枠䨤靀䨵鞲韂噔䫤惨颹䬙飱塄餎餙冴餜餷饂饝饢䭰駅䮝騼鬏窃魩鮁鯝鯱鯴䱭鰠㝯𡯂鵉鰺"],
+["9aa1","黾噐鶓鶽鷀鷼银辶鹻麬麱麽黆铜黢黱黸竈齄𠂔𠊷𠎠椚铃妬𠓗塀铁㞹𠗕𠘕𠙶𡚺块煳𠫂𠫍𠮿呪吆𠯋咞𠯻𠰻𠱓𠱥𠱼惧𠲍噺𠲵𠳝𠳭𠵯𠶲𠷈楕鰯螥𠸄𠸎𠻗𠾐𠼭𠹳尠𠾼帋𡁜𡁏𡁶朞𡁻𡂈𡂖㙇𡂿𡃓𡄯𡄻卤蒭𡋣𡍵𡌶讁𡕷𡘙𡟃𡟇乸炻𡠭𡥪"],
+["9b40","𡨭𡩅𡰪𡱰𡲬𡻈拃𡻕𡼕熘桕𢁅槩㛈𢉼𢏗𢏺𢜪𢡱𢥏苽𢥧𢦓𢫕覥𢫨辠𢬎鞸𢬿顇骽𢱌"],
+["9b62","𢲈𢲷𥯨𢴈𢴒𢶷𢶕𢹂𢽴𢿌𣀳𣁦𣌟𣏞徱晈暿𧩹𣕧𣗳爁𤦺矗𣘚𣜖纇𠍆墵朎"],
+["9ba1","椘𣪧𧙗𥿢𣸑𣺹𧗾𢂚䣐䪸𤄙𨪚𤋮𤌍𤀻𤌴𤎖𤩅𠗊凒𠘑妟𡺨㮾𣳿𤐄𤓖垈𤙴㦛𤜯𨗨𩧉㝢𢇃譞𨭎駖𤠒𤣻𤨕爉𤫀𠱸奥𤺥𤾆𠝹軚𥀬劏圿煱𥊙𥐙𣽊𤪧喼𥑆𥑮𦭒釔㑳𥔿𧘲𥕞䜘𥕢𥕦𥟇𤤿𥡝偦㓻𣏌惞𥤃䝼𨥈𥪮𥮉𥰆𡶐垡煑澶𦄂𧰒遖𦆲𤾚譢𦐂𦑊"],
+["9c40","嵛𦯷輶𦒄𡤜諪𤧶𦒈𣿯𦔒䯀𦖿𦚵𢜛鑥𥟡憕娧晉侻嚹𤔡𦛼乪𤤴陖涏𦲽㘘襷𦞙𦡮𦐑𦡞營𦣇筂𩃀𠨑𦤦鄄𦤹穅鷰𦧺騦𦨭㙟𦑩𠀡禃𦨴𦭛崬𣔙菏𦮝䛐𦲤画补𦶮墶"],
+["9ca1","㜜𢖍𧁋𧇍㱔𧊀𧊅銁𢅺𧊋錰𧋦𤧐氹钟𧑐𠻸蠧裵𢤦𨑳𡞱溸𤨪𡠠㦤㚹尐秣䔿暶𩲭𩢤襃𧟌𧡘囖䃟𡘊㦡𣜯𨃨𡏅熭荦𧧝𩆨婧䲷𧂯𨦫𧧽𧨊𧬋𧵦𤅺筃祾𨀉澵𪋟樃𨌘厢𦸇鎿栶靝𨅯𨀣𦦵𡏭𣈯𨁈嶅𨰰𨂃圕頣𨥉嶫𤦈斾槕叒𤪥𣾁㰑朶𨂐𨃴𨄮𡾡𨅏"],
+["9d40","𨆉𨆯𨈚𨌆𨌯𨎊㗊𨑨𨚪䣺揦𨥖砈鉕𨦸䏲𨧧䏟𨧨𨭆𨯔姸𨰉輋𨿅𩃬筑𩄐𩄼㷷𩅞𤫊运犏嚋𩓧𩗩𩖰𩖸𩜲𩣑𩥉𩥪𩧃𩨨𩬎𩵚𩶛纟𩻸𩼣䲤镇𪊓熢𪋿䶑递𪗋䶜𠲜达嗁"],
+["9da1","辺𢒰边𤪓䔉繿潖檱仪㓤𨬬𧢝㜺躀𡟵𨀤𨭬𨮙𧨾𦚯㷫𧙕𣲷𥘵𥥖亚𥺁𦉘嚿𠹭踎孭𣺈𤲞揞拐𡟶𡡻攰嘭𥱊吚𥌑㷆𩶘䱽嘢嘞罉𥻘奵𣵀蝰东𠿪𠵉𣚺脗鵞贘瘻鱅癎瞹鍅吲腈苷嘥脲萘肽嗪祢噃吖𠺝㗎嘅嗱曱𨋢㘭甴嗰喺咗啲𠱁𠲖廐𥅈𠹶𢱢"],
+["9e40","𠺢麫絚嗞𡁵抝靭咔賍燶酶揼掹揾啩𢭃鱲𢺳冚㓟𠶧冧呍唞唓癦踭𦢊疱肶蠄螆裇膶萜𡃁䓬猄𤜆宐茋𦢓噻𢛴𧴯𤆣𧵳𦻐𧊶酰𡇙鈈𣳼𪚩𠺬𠻹牦𡲢䝎𤿂𧿹𠿫䃺"],
+["9ea1","鱝攟𢶠䣳𤟠𩵼𠿬𠸊恢𧖣𠿭"],
+["9ead","𦁈𡆇熣纎鵐业丄㕷嬍沲卧㚬㧜卽㚥𤘘墚𤭮舭呋垪𥪕𠥹"],
+["9ec5","㩒𢑥獴𩺬䴉鯭𣳾𩼰䱛𤾩𩖞𩿞葜𣶶𧊲𦞳𣜠挮紥𣻷𣸬㨪逈勌㹴㙺䗩𠒎癀嫰𠺶硺𧼮墧䂿噼鮋嵴癔𪐴麅䳡痹㟻愙𣃚𤏲"],
+["9ef5","噝𡊩垧𤥣𩸆刴𧂮㖭汊鵼"],
+["9f40","籖鬹埞𡝬屓擓𩓐𦌵𧅤蚭𠴨𦴢𤫢𠵱"],
+["9f4f","凾𡼏嶎霃𡷑麁遌笟鬂峑箣扨挵髿篏鬪籾鬮籂粆鰕篼鬉鼗鰛𤤾齚啳寃俽麘俲剠㸆勑坧偖妷帒韈鶫轜呩鞴饀鞺匬愰"],
+["9fa1","椬叚鰊鴂䰻陁榀傦畆𡝭駚剳"],
+["9fae","酙隁酜"],
+["9fb2","酑𨺗捿𦴣櫊嘑醎畺抅𠏼獏籰𥰡𣳽"],
+["9fc1","𤤙盖鮝个𠳔莾衂"],
+["9fc9","届槀僭坺刟巵从氱𠇲伹咜哚劚趂㗾弌㗳"],
+["9fdb","歒酼龥鮗頮颴骺麨麄煺笔"],
+["9fe7","毺蠘罸"],
+["9feb","嘠𪙊蹷齓"],
+["9ff0","跔蹏鸜踁抂𨍽踨蹵竓𤩷稾磘泪詧瘇"],
+["a040","𨩚鼦泎蟖痃𪊲硓咢贌狢獱謭猂瓱賫𤪻蘯徺袠䒷"],
+["a055","𡠻𦸅"],
+["a058","詾𢔛"],
+["a05b","惽癧髗鵄鍮鮏蟵"],
+["a063","蠏賷猬霡鮰㗖犲䰇籑饊𦅙慙䰄麖慽"],
+["a073","坟慯抦戹拎㩜懢厪𣏵捤栂㗒"],
+["a0a1","嵗𨯂迚𨸹"],
+["a0a6","僙𡵆礆匲阸𠼻䁥"],
+["a0ae","矾"],
+["a0b0","糂𥼚糚稭聦聣絍甅瓲覔舚朌聢𧒆聛瓰脃眤覉𦟌畓𦻑螩蟎臈螌詉貭譃眫瓸蓚㘵榲趦"],
+["a0d4","覩瑨涹蟁𤀑瓧㷛煶悤憜㳑煢恷"],
+["a0e2","罱𨬭牐惩䭾删㰘𣳇𥻗𧙖𥔱𡥄𡋾𩤃𦷜𧂭峁𦆭𨨏𣙷𠃮𦡆𤼎䕢嬟𦍌齐麦𦉫"],
+["a3c0","␀",31,"␡"],
+["c6a1","①",9,"⑴",9,"ⅰ",9,"丶丿亅亠冂冖冫勹匸卩厶夊宀巛⼳广廴彐彡攴无疒癶辵隶¨ˆヽヾゝゞ〃仝々〆〇ー［］✽ぁ",23],
+["c740","す",58,"ァアィイ"],
+["c7a1","ゥ",81,"А",5,"ЁЖ",4],
+["c840","Л",26,"ёж",25,"⇧↸↹㇏𠃌乚𠂊刂䒑"],
+["c8a1","龰冈龱𧘇"],
+["c8cd","￢￤＇＂㈱№℡゛゜⺀⺄⺆⺇⺈⺊⺌⺍⺕⺜⺝⺥⺧⺪⺬⺮⺶⺼⺾⻆⻊⻌⻍⻏⻖⻗⻞⻣"],
+["c8f5","ʃɐɛɔɵœøŋʊɪ"],
+["f9fe","￭"],
+["fa40","𠕇鋛𠗟𣿅蕌䊵珯况㙉𤥂𨧤鍄𡧛苮𣳈砼杄拟𤤳𨦪𠊠𦮳𡌅侫𢓭倈𦴩𧪄𣘀𤪱𢔓倩𠍾徤𠎀𠍇滛𠐟偽儁㑺儎顬㝃萖𤦤𠒇兠𣎴兪𠯿𢃼𠋥𢔰𠖎𣈳𡦃宂蝽𠖳𣲙冲冸"],
+["faa1","鴴凉减凑㳜凓𤪦决凢卂凭菍椾𣜭彻刋刦刼劵剗劔効勅簕蕂勠蘍𦬓包𨫞啉滙𣾀𠥔𣿬匳卄𠯢泋𡜦栛珕恊㺪㣌𡛨燝䒢卭却𨚫卾卿𡖖𡘓矦厓𨪛厠厫厮玧𥝲㽙玜叁叅汉义埾叙㪫𠮏叠𣿫𢶣叶𠱷吓灹唫晗浛呭𦭓𠵴啝咏咤䞦𡜍𠻝㶴𠵍"],
+["fb40","𨦼𢚘啇䳭启琗喆喩嘅𡣗𤀺䕒𤐵暳𡂴嘷曍𣊊暤暭噍噏磱囱鞇叾圀囯园𨭦㘣𡉏坆𤆥汮炋坂㚱𦱾埦𡐖堃𡑔𤍣堦𤯵塜墪㕡壠壜𡈼壻寿坃𪅐𤉸鏓㖡够梦㛃湙"],
+["fba1","𡘾娤啓𡚒蔅姉𠵎𦲁𦴪𡟜姙𡟻𡞲𦶦浱𡠨𡛕姹𦹅媫婣㛦𤦩婷㜈媖瑥嫓𦾡𢕔㶅𡤑㜲𡚸広勐孶斈孼𧨎䀄䡝𠈄寕慠𡨴𥧌𠖥寳宝䴐尅𡭄尓珎尔𡲥𦬨屉䣝岅峩峯嶋𡷹𡸷崐崘嵆𡺤岺巗苼㠭𤤁𢁉𢅳芇㠶㯂帮檊幵幺𤒼𠳓厦亷廐厨𡝱帉廴𨒂"],
+["fc40","廹廻㢠廼栾鐛弍𠇁弢㫞䢮𡌺强𦢈𢏐彘𢑱彣鞽𦹮彲鍀𨨶徧嶶㵟𥉐𡽪𧃸𢙨釖𠊞𨨩怱暅𡡷㥣㷇㘹垐𢞴祱㹀悞悤悳𤦂𤦏𧩓璤僡媠慤萤慂慈𦻒憁凴𠙖憇宪𣾷"],
+["fca1","𢡟懓𨮝𩥝懐㤲𢦀𢣁怣慜攞掋𠄘担𡝰拕𢸍捬𤧟㨗搸揸𡎎𡟼撐澊𢸶頔𤂌𥜝擡擥鑻㩦携㩗敍漖𤨨𤨣斅敭敟𣁾斵𤥀䬷旑䃘𡠩无旣忟𣐀昘𣇷𣇸晄𣆤𣆥晋𠹵晧𥇦晳晴𡸽𣈱𨗴𣇈𥌓矅𢣷馤朂𤎜𤨡㬫槺𣟂杞杧杢𤇍𩃭柗䓩栢湐鈼栁𣏦𦶠桝"],
+["fd40","𣑯槡樋𨫟楳棃𣗍椁椀㴲㨁𣘼㮀枬楡𨩊䋼椶榘㮡𠏉荣傐槹𣙙𢄪橅𣜃檝㯳枱櫈𩆜㰍欝𠤣惞欵歴𢟍溵𣫛𠎵𡥘㝀吡𣭚毡𣻼毜氷𢒋𤣱𦭑汚舦汹𣶼䓅𣶽𤆤𤤌𤤀"],
+["fda1","𣳉㛥㳫𠴲鮃𣇹𢒑羏样𦴥𦶡𦷫涖浜湼漄𤥿𤂅𦹲蔳𦽴凇沜渝萮𨬡港𣸯瑓𣾂秌湏媑𣁋濸㜍澝𣸰滺𡒗𤀽䕕鏰潄潜㵎潴𩅰㴻澟𤅄濓𤂑𤅕𤀹𣿰𣾴𤄿凟𤅖𤅗𤅀𦇝灋灾炧炁烌烕烖烟䄄㷨熴熖𤉷焫煅媈煊煮岜𤍥煏鍢𤋁焬𤑚𤨧𤨢熺𨯨炽爎"],
+["fe40","鑂爕夑鑃爤鍁𥘅爮牀𤥴梽牕牗㹕𣁄栍漽犂猪猫𤠣𨠫䣭𨠄猨献珏玪𠰺𦨮珉瑉𤇢𡛧𤨤昣㛅𤦷𤦍𤧻珷琕椃𤨦琹𠗃㻗瑜𢢭瑠𨺲瑇珤瑶莹瑬㜰瑴鏱樬璂䥓𤪌"],
+["fea1","𤅟𤩹𨮏孆𨰃𡢞瓈𡦈甎瓩甞𨻙𡩋寗𨺬鎅畍畊畧畮𤾂㼄𤴓疎瑝疞疴瘂瘬癑癏癯癶𦏵皐臯㟸𦤑𦤎皡皥皷盌𦾟葢𥂝𥅽𡸜眞眦着撯𥈠睘𣊬瞯𨥤𨥨𡛁矴砉𡍶𤨒棊碯磇磓隥礮𥗠磗礴碱𧘌辸袄𨬫𦂃𢘜禆褀椂禀𥡗禝𧬹礼禩渪𧄦㺨秆𩄍秔"]
+]
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/tables/cp936.json b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/cp936.json
new file mode 100644
index 0000000..49ddb9a
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/cp936.json
@@ -0,0 +1,264 @@
+[
+["0","\u0000",127,"€"],
+["8140","丂丄丅丆丏丒丗丟丠両丣並丩丮丯丱丳丵丷丼乀乁乂乄乆乊乑乕乗乚乛乢乣乤乥乧乨乪",5,"乲乴",9,"乿",6,"亇亊"],
+["8180","亐亖亗亙亜亝亞亣亪亯亰亱亴亶亷亸亹亼亽亾仈仌仏仐仒仚仛仜仠仢仦仧仩仭仮仯仱仴仸仹仺仼仾伀伂",6,"伋伌伒",4,"伜伝伡伣伨伩伬伭伮伱伳伵伷伹伻伾",4,"佄佅佇",5,"佒佔佖佡佢佦佨佪佫佭佮佱佲併佷佸佹佺佽侀侁侂侅來侇侊侌侎侐侒侓侕侖侘侙侚侜侞侟価侢"],
+["8240","侤侫侭侰",4,"侶",8,"俀俁係俆俇俈俉俋俌俍俒",4,"俙俛俠俢俤俥俧俫俬俰俲俴俵俶俷俹俻俼俽俿",11],
+["8280","個倎倐們倓倕倖倗倛倝倞倠倢倣値倧倫倯",10,"倻倽倿偀偁偂偄偅偆偉偊偋偍偐",4,"偖偗偘偙偛偝",7,"偦",5,"偭",8,"偸偹偺偼偽傁傂傃傄傆傇傉傊傋傌傎",20,"傤傦傪傫傭",4,"傳",6,"傼"],
+["8340","傽",17,"僐",5,"僗僘僙僛",10,"僨僩僪僫僯僰僱僲僴僶",4,"僼",9,"儈"],
+["8380","儉儊儌",5,"儓",13,"儢",28,"兂兇兊兌兎兏児兒兓兗兘兙兛兝",4,"兣兤兦內兩兪兯兲兺兾兿冃冄円冇冊冋冎冏冐冑冓冔冘冚冝冞冟冡冣冦",4,"冭冮冴冸冹冺冾冿凁凂凃凅凈凊凍凎凐凒",5],
+["8440","凘凙凚凜凞凟凢凣凥",5,"凬凮凱凲凴凷凾刄刅刉刋刌刏刐刓刔刕刜刞刟刡刢刣別刦刧刪刬刯刱刲刴刵刼刾剄",5,"剋剎剏剒剓剕剗剘"],
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+]
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/tables/cp949.json b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/cp949.json
new file mode 100644
index 0000000..2022a00
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/cp949.json
@@ -0,0 +1,273 @@
+[
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+["ba81","틒틓틕틖틗틙틚틛틝",6,"틦",9,"틲틳틵틶틷틹틺벙벚베벡벤벧벨벰벱벳벴벵벼벽변별볍볏볐병볕볘볜보복볶본볼봄봅봇봉봐봔봤봬뵀뵈뵉뵌뵐뵘뵙뵤뵨부북분붇불붉붊붐붑붓붕붙붚붜붤붰붸뷔뷕뷘뷜뷩뷰뷴뷸븀븃븅브븍븐블븜븝븟비빅빈빌빎빔빕빗빙빚빛빠빡빤"],
+["bb41","틻",4,"팂팄팆",5,"팏팑팒팓팕팗",4,"팞팢팣"],
+["bb61","팤팦팧팪팫팭팮팯팱",6,"팺팾",5,"퍆퍇퍈퍉"],
+["bb81","퍊",31,"빨빪빰빱빳빴빵빻빼빽뺀뺄뺌뺍뺏뺐뺑뺘뺙뺨뻐뻑뻔뻗뻘뻠뻣뻤뻥뻬뼁뼈뼉뼘뼙뼛뼜뼝뽀뽁뽄뽈뽐뽑뽕뾔뾰뿅뿌뿍뿐뿔뿜뿟뿡쀼쁑쁘쁜쁠쁨쁩삐삑삔삘삠삡삣삥사삭삯산삳살삵삶삼삽삿샀상샅새색샌샐샘샙샛샜생샤"],
+["bc41","퍪",17,"퍾퍿펁펂펃펅펆펇"],
+["bc61","펈펉펊펋펎펒",5,"펚펛펝펞펟펡",6,"펪펬펮"],
+["bc81","펯",4,"펵펶펷펹펺펻펽",6,"폆폇폊",5,"폑",5,"샥샨샬샴샵샷샹섀섄섈섐섕서",4,"섣설섦섧섬섭섯섰성섶세섹센셀셈셉셋셌셍셔셕션셜셤셥셧셨셩셰셴셸솅소속솎손솔솖솜솝솟송솥솨솩솬솰솽쇄쇈쇌쇔쇗쇘쇠쇤쇨쇰쇱쇳쇼쇽숀숄숌숍숏숑수숙순숟술숨숩숫숭"],
+["bd41","폗폙",7,"폢폤",7,"폮폯폱폲폳폵폶폷"],
+["bd61","폸폹폺폻폾퐀퐂",5,"퐉",13],
+["bd81","퐗",5,"퐞",25,"숯숱숲숴쉈쉐쉑쉔쉘쉠쉥쉬쉭쉰쉴쉼쉽쉿슁슈슉슐슘슛슝스슥슨슬슭슴습슷승시식신싣실싫심십싯싱싶싸싹싻싼쌀쌈쌉쌌쌍쌓쌔쌕쌘쌜쌤쌥쌨쌩썅써썩썬썰썲썸썹썼썽쎄쎈쎌쏀쏘쏙쏜쏟쏠쏢쏨쏩쏭쏴쏵쏸쐈쐐쐤쐬쐰"],
+["be41","퐸",7,"푁푂푃푅",14],
+["be61","푔",7,"푝푞푟푡푢푣푥",7,"푮푰푱푲"],
+["be81","푳",4,"푺푻푽푾풁풃",4,"풊풌풎",5,"풕",8,"쐴쐼쐽쑈쑤쑥쑨쑬쑴쑵쑹쒀쒔쒜쒸쒼쓩쓰쓱쓴쓸쓺쓿씀씁씌씐씔씜씨씩씬씰씸씹씻씽아악안앉않알앍앎앓암압앗았앙앝앞애액앤앨앰앱앳앴앵야약얀얄얇얌얍얏양얕얗얘얜얠얩어억언얹얻얼얽얾엄",6,"엌엎"],
+["bf41","풞",10,"풪",14],
+["bf61","풹",18,"퓍퓎퓏퓑퓒퓓퓕"],
+["bf81","퓖",5,"퓝퓞퓠",7,"퓩퓪퓫퓭퓮퓯퓱",6,"퓹퓺퓼에엑엔엘엠엡엣엥여역엮연열엶엷염",5,"옅옆옇예옌옐옘옙옛옜오옥온올옭옮옰옳옴옵옷옹옻와왁완왈왐왑왓왔왕왜왝왠왬왯왱외왹왼욀욈욉욋욍요욕욘욜욤욥욧용우욱운울욹욺움웁웃웅워웍원월웜웝웠웡웨"],
+["c041","퓾",5,"픅픆픇픉픊픋픍",6,"픖픘",5],
+["c061","픞",25],
+["c081","픸픹픺픻픾픿핁핂핃핅",6,"핎핐핒",5,"핚핛핝핞핟핡핢핣웩웬웰웸웹웽위윅윈윌윔윕윗윙유육윤율윰윱윳융윷으윽은을읊음읍읏응",7,"읜읠읨읫이익인일읽읾잃임입잇있잉잊잎자작잔잖잗잘잚잠잡잣잤장잦재잭잰잴잼잽잿쟀쟁쟈쟉쟌쟎쟐쟘쟝쟤쟨쟬저적전절젊"],
+["c141","핤핦핧핪핬핮",5,"핶핷핹핺핻핽",6,"햆햊햋"],
+["c161","햌햍햎햏햑",19,"햦햧"],
+["c181","햨",31,"점접젓정젖제젝젠젤젬젭젯젱져젼졀졈졉졌졍졔조족존졸졺좀좁좃종좆좇좋좌좍좔좝좟좡좨좼좽죄죈죌죔죕죗죙죠죡죤죵주죽준줄줅줆줌줍줏중줘줬줴쥐쥑쥔쥘쥠쥡쥣쥬쥰쥴쥼즈즉즌즐즘즙즛증지직진짇질짊짐집짓"],
+["c241","헊헋헍헎헏헑헓",4,"헚헜헞",5,"헦헧헩헪헫헭헮"],
+["c261","헯",4,"헶헸헺",5,"혂혃혅혆혇혉",6,"혒"],
+["c281","혖",5,"혝혞혟혡혢혣혥",7,"혮",9,"혺혻징짖짙짚짜짝짠짢짤짧짬짭짯짰짱째짹짼쨀쨈쨉쨋쨌쨍쨔쨘쨩쩌쩍쩐쩔쩜쩝쩟쩠쩡쩨쩽쪄쪘쪼쪽쫀쫄쫌쫍쫏쫑쫓쫘쫙쫠쫬쫴쬈쬐쬔쬘쬠쬡쭁쭈쭉쭌쭐쭘쭙쭝쭤쭸쭹쮜쮸쯔쯤쯧쯩찌찍찐찔찜찝찡찢찧차착찬찮찰참찹찻"],
+["c341","혽혾혿홁홂홃홄홆홇홊홌홎홏홐홒홓홖홗홙홚홛홝",4],
+["c361","홢",4,"홨홪",5,"홲홳홵",11],
+["c381","횁횂횄횆",5,"횎횏횑횒횓횕",7,"횞횠횢",5,"횩횪찼창찾채책챈챌챔챕챗챘챙챠챤챦챨챰챵처척천철첨첩첫첬청체첵첸첼쳄쳅쳇쳉쳐쳔쳤쳬쳰촁초촉촌촐촘촙촛총촤촨촬촹최쵠쵤쵬쵭쵯쵱쵸춈추축춘출춤춥춧충춰췄췌췐취췬췰췸췹췻췽츄츈츌츔츙츠측츤츨츰츱츳층"],
+["c441","횫횭횮횯횱",7,"횺횼",7,"훆훇훉훊훋"],
+["c461","훍훎훏훐훒훓훕훖훘훚",5,"훡훢훣훥훦훧훩",4],
+["c481","훮훯훱훲훳훴훶",5,"훾훿휁휂휃휅",11,"휒휓휔치칙친칟칠칡침칩칫칭카칵칸칼캄캅캇캉캐캑캔캘캠캡캣캤캥캬캭컁커컥컨컫컬컴컵컷컸컹케켁켄켈켐켑켓켕켜켠켤켬켭켯켰켱켸코콕콘콜콤콥콧콩콰콱콴콸쾀쾅쾌쾡쾨쾰쿄쿠쿡쿤쿨쿰쿱쿳쿵쿼퀀퀄퀑퀘퀭퀴퀵퀸퀼"],
+["c541","휕휖휗휚휛휝휞휟휡",6,"휪휬휮",5,"휶휷휹"],
+["c561","휺휻휽",6,"흅흆흈흊",5,"흒흓흕흚",4],
+["c581","흟흢흤흦흧흨흪흫흭흮흯흱흲흳흵",6,"흾흿힀힂",5,"힊힋큄큅큇큉큐큔큘큠크큭큰클큼큽킁키킥킨킬킴킵킷킹타탁탄탈탉탐탑탓탔탕태택탠탤탬탭탯탰탱탸턍터턱턴털턺텀텁텃텄텅테텍텐텔템텝텟텡텨텬텼톄톈토톡톤톨톰톱톳통톺톼퇀퇘퇴퇸툇툉툐투툭툰툴툼툽툿퉁퉈퉜"],
+["c641","힍힎힏힑",6,"힚힜힞",5],
+["c6a1","퉤튀튁튄튈튐튑튕튜튠튤튬튱트특튼튿틀틂틈틉틋틔틘틜틤틥티틱틴틸팀팁팃팅파팍팎판팔팖팜팝팟팠팡팥패팩팬팰팸팹팻팼팽퍄퍅퍼퍽펀펄펌펍펏펐펑페펙펜펠펨펩펫펭펴편펼폄폅폈평폐폘폡폣포폭폰폴폼폽폿퐁"],
+["c7a1","퐈퐝푀푄표푠푤푭푯푸푹푼푿풀풂품풉풋풍풔풩퓌퓐퓔퓜퓟퓨퓬퓰퓸퓻퓽프픈플픔픕픗피픽핀필핌핍핏핑하학한할핥함합핫항해핵핸핼햄햅햇했행햐향허헉헌헐헒험헙헛헝헤헥헨헬헴헵헷헹혀혁현혈혐협혓혔형혜혠"],
+["c8a1","혤혭호혹혼홀홅홈홉홋홍홑화확환활홧황홰홱홴횃횅회획횐횔횝횟횡효횬횰횹횻후훅훈훌훑훔훗훙훠훤훨훰훵훼훽휀휄휑휘휙휜휠휨휩휫휭휴휵휸휼흄흇흉흐흑흔흖흗흘흙흠흡흣흥흩희흰흴흼흽힁히힉힌힐힘힙힛힝"],
+["caa1","伽佳假價加可呵哥嘉嫁家暇架枷柯歌珂痂稼苛茄街袈訶賈跏軻迦駕刻却各恪慤殼珏脚覺角閣侃刊墾奸姦干幹懇揀杆柬桿澗癎看磵稈竿簡肝艮艱諫間乫喝曷渴碣竭葛褐蝎鞨勘坎堪嵌感憾戡敢柑橄減甘疳監瞰紺邯鑑鑒龕"],
+["cba1","匣岬甲胛鉀閘剛堈姜岡崗康强彊慷江畺疆糠絳綱羌腔舡薑襁講鋼降鱇介价個凱塏愷愾慨改槪漑疥皆盖箇芥蓋豈鎧開喀客坑更粳羹醵倨去居巨拒据據擧渠炬祛距踞車遽鉅鋸乾件健巾建愆楗腱虔蹇鍵騫乞傑杰桀儉劍劒檢"],
+["cca1","瞼鈐黔劫怯迲偈憩揭擊格檄激膈覡隔堅牽犬甄絹繭肩見譴遣鵑抉決潔結缺訣兼慊箝謙鉗鎌京俓倞傾儆勁勍卿坰境庚徑慶憬擎敬景暻更梗涇炅烱璟璥瓊痙硬磬竟競絅經耕耿脛莖警輕逕鏡頃頸驚鯨係啓堺契季屆悸戒桂械"],
+["cda1","棨溪界癸磎稽系繫繼計誡谿階鷄古叩告呱固姑孤尻庫拷攷故敲暠枯槁沽痼皐睾稿羔考股膏苦苽菰藁蠱袴誥賈辜錮雇顧高鼓哭斛曲梏穀谷鵠困坤崑昆梱棍滾琨袞鯤汨滑骨供公共功孔工恐恭拱控攻珙空蚣貢鞏串寡戈果瓜"],
+["cea1","科菓誇課跨過鍋顆廓槨藿郭串冠官寬慣棺款灌琯瓘管罐菅觀貫關館刮恝括适侊光匡壙廣曠洸炚狂珖筐胱鑛卦掛罫乖傀塊壞怪愧拐槐魁宏紘肱轟交僑咬喬嬌嶠巧攪敎校橋狡皎矯絞翹膠蕎蛟較轎郊餃驕鮫丘久九仇俱具勾"],
+["cfa1","區口句咎嘔坵垢寇嶇廐懼拘救枸柩構歐毆毬求溝灸狗玖球瞿矩究絿耉臼舅舊苟衢謳購軀逑邱鉤銶駒驅鳩鷗龜國局菊鞠鞫麴君窘群裙軍郡堀屈掘窟宮弓穹窮芎躬倦券勸卷圈拳捲權淃眷厥獗蕨蹶闕机櫃潰詭軌饋句晷歸貴"],
+["d0a1","鬼龜叫圭奎揆槻珪硅窺竅糾葵規赳逵閨勻均畇筠菌鈞龜橘克剋劇戟棘極隙僅劤勤懃斤根槿瑾筋芹菫覲謹近饉契今妗擒昑檎琴禁禽芩衾衿襟金錦伋及急扱汲級給亘兢矜肯企伎其冀嗜器圻基埼夔奇妓寄岐崎己幾忌技旗旣"],
+["d1a1","朞期杞棋棄機欺氣汽沂淇玘琦琪璂璣畸畿碁磯祁祇祈祺箕紀綺羈耆耭肌記譏豈起錡錤飢饑騎騏驥麒緊佶吉拮桔金喫儺喇奈娜懦懶拏拿癩",5,"那樂",4,"諾酪駱亂卵暖欄煖爛蘭難鸞捏捺南嵐枏楠湳濫男藍襤拉"],
+["d2a1","納臘蠟衲囊娘廊",4,"乃來內奈柰耐冷女年撚秊念恬拈捻寧寗努勞奴弩怒擄櫓爐瑙盧",5,"駑魯",10,"濃籠聾膿農惱牢磊腦賂雷尿壘",7,"嫩訥杻紐勒",5,"能菱陵尼泥匿溺多茶"],
+["d3a1","丹亶但單團壇彖斷旦檀段湍短端簞緞蛋袒鄲鍛撻澾獺疸達啖坍憺擔曇淡湛潭澹痰聃膽蕁覃談譚錟沓畓答踏遝唐堂塘幢戇撞棠當糖螳黨代垈坮大對岱帶待戴擡玳臺袋貸隊黛宅德悳倒刀到圖堵塗導屠島嶋度徒悼挑掉搗桃"],
+["d4a1","棹櫂淘渡滔濤燾盜睹禱稻萄覩賭跳蹈逃途道都鍍陶韜毒瀆牘犢獨督禿篤纛讀墩惇敦旽暾沌焞燉豚頓乭突仝冬凍動同憧東桐棟洞潼疼瞳童胴董銅兜斗杜枓痘竇荳讀豆逗頭屯臀芚遁遯鈍得嶝橙燈登等藤謄鄧騰喇懶拏癩羅"],
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+["eaa1","運隕雲韻蔚鬱亐熊雄元原員圓園垣媛嫄寃怨愿援沅洹湲源爰猿瑗苑袁轅遠阮院願鴛月越鉞位偉僞危圍委威尉慰暐渭爲瑋緯胃萎葦蔿蝟衛褘謂違韋魏乳侑儒兪劉唯喩孺宥幼幽庾悠惟愈愉揄攸有杻柔柚柳楡楢油洧流游溜"],
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+["eca1","議醫二以伊利吏夷姨履已弛彛怡易李梨泥爾珥理異痍痢移罹而耳肄苡荑裏裡貽貳邇里離飴餌匿溺瀷益翊翌翼謚人仁刃印吝咽因姻寅引忍湮燐璘絪茵藺蚓認隣靭靷鱗麟一佚佾壹日溢逸鎰馹任壬妊姙恁林淋稔臨荏賃入卄"],
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+["eea1","障再哉在宰才材栽梓渽滓災縡裁財載齋齎爭箏諍錚佇低儲咀姐底抵杵楮樗沮渚狙猪疽箸紵苧菹著藷詛貯躇這邸雎齟勣吊嫡寂摘敵滴狄炙的積笛籍績翟荻謫賊赤跡蹟迪迹適鏑佃佺傳全典前剪塡塼奠專展廛悛戰栓殿氈澱"],
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+["f0a1","靜頂鼎制劑啼堤帝弟悌提梯濟祭第臍薺製諸蹄醍除際霽題齊俎兆凋助嘲弔彫措操早晁曺曹朝條棗槽漕潮照燥爪璪眺祖祚租稠窕粗糟組繰肇藻蚤詔調趙躁造遭釣阻雕鳥族簇足鏃存尊卒拙猝倧宗從悰慫棕淙琮種終綜縱腫"],
+["f1a1","踪踵鍾鐘佐坐左座挫罪主住侏做姝胄呪周嗾奏宙州廚晝朱柱株注洲湊澍炷珠疇籌紂紬綢舟蛛註誅走躊輳週酎酒鑄駐竹粥俊儁准埈寯峻晙樽浚準濬焌畯竣蠢逡遵雋駿茁中仲衆重卽櫛楫汁葺增憎曾拯烝甑症繒蒸證贈之只"],
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+["f3a1","鏶集徵懲澄且侘借叉嗟嵯差次此磋箚茶蹉車遮捉搾着窄錯鑿齪撰澯燦璨瓚竄簒纂粲纘讚贊鑽餐饌刹察擦札紮僭參塹慘慙懺斬站讒讖倉倡創唱娼廠彰愴敞昌昶暢槍滄漲猖瘡窓脹艙菖蒼債埰寀寨彩採砦綵菜蔡采釵冊柵策"],
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diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/tables/cp950.json b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/cp950.json
new file mode 100644
index 0000000..d8bc871
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/cp950.json
@@ -0,0 +1,177 @@
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+["e0a1","遄遉逽鄐鄍鄏鄑鄖鄔鄋鄎酮酯鉈鉒鈰鈺鉦鈳鉥鉞銃鈮鉊鉆鉭鉬鉏鉠鉧鉯鈶鉡鉰鈱鉔鉣鉐鉲鉎鉓鉌鉖鈲閟閜閞閛隒隓隑隗雎雺雽雸雵靳靷靸靲頏頍頎颬飶飹馯馲馰馵骭骫魛鳪鳭鳧麀黽僦僔僗僨僳僛僪僝僤僓僬僰僯僣僠"],
+["e140","凘劀劁勩勫匰厬嘧嘕嘌嘒嗼嘏嘜嘁嘓嘂嗺嘝嘄嗿嗹墉塼墐墘墆墁塿塴墋塺墇墑墎塶墂墈塻墔墏壾奫嫜嫮嫥嫕嫪嫚嫭嫫嫳嫢嫠嫛嫬嫞嫝嫙嫨嫟孷寠"],
+["e1a1","寣屣嶂嶀嵽嶆嵺嶁嵷嶊嶉嶈嵾嵼嶍嵹嵿幘幙幓廘廑廗廎廜廕廙廒廔彄彃彯徶愬愨慁慞慱慳慒慓慲慬憀慴慔慺慛慥愻慪慡慖戩戧戫搫摍摛摝摴摶摲摳摽摵摦撦摎撂摞摜摋摓摠摐摿搿摬摫摙摥摷敳斠暡暠暟朅朄朢榱榶槉"],
+["e240","榠槎榖榰榬榼榑榙榎榧榍榩榾榯榿槄榽榤槔榹槊榚槏榳榓榪榡榞槙榗榐槂榵榥槆歊歍歋殞殟殠毃毄毾滎滵滱漃漥滸漷滻漮漉潎漙漚漧漘漻漒滭漊"],
+["e2a1","漶潳滹滮漭潀漰漼漵滫漇漎潃漅滽滶漹漜滼漺漟漍漞漈漡熇熐熉熀熅熂熏煻熆熁熗牄牓犗犕犓獃獍獑獌瑢瑳瑱瑵瑲瑧瑮甀甂甃畽疐瘖瘈瘌瘕瘑瘊瘔皸瞁睼瞅瞂睮瞀睯睾瞃碲碪碴碭碨硾碫碞碥碠碬碢碤禘禊禋禖禕禔禓"],
+["e340","禗禈禒禐稫穊稰稯稨稦窨窫窬竮箈箜箊箑箐箖箍箌箛箎箅箘劄箙箤箂粻粿粼粺綧綷緂綣綪緁緀緅綝緎緄緆緋緌綯綹綖綼綟綦綮綩綡緉罳翢翣翥翞"],
+["e3a1","耤聝聜膉膆膃膇膍膌膋舕蒗蒤蒡蒟蒺蓎蓂蒬蒮蒫蒹蒴蓁蓍蒪蒚蒱蓐蒝蒧蒻蒢蒔蓇蓌蒛蒩蒯蒨蓖蒘蒶蓏蒠蓗蓔蓒蓛蒰蒑虡蜳蜣蜨蝫蝀蜮蜞蜡蜙蜛蝃蜬蝁蜾蝆蜠蜲蜪蜭蜼蜒蜺蜱蜵蝂蜦蜧蜸蜤蜚蜰蜑裷裧裱裲裺裾裮裼裶裻"],
+["e440","裰裬裫覝覡覟覞觩觫觨誫誙誋誒誏誖谽豨豩賕賏賗趖踉踂跿踍跽踊踃踇踆踅跾踀踄輐輑輎輍鄣鄜鄠鄢鄟鄝鄚鄤鄡鄛酺酲酹酳銥銤鉶銛鉺銠銔銪銍"],
+["e4a1","銦銚銫鉹銗鉿銣鋮銎銂銕銢鉽銈銡銊銆銌銙銧鉾銇銩銝銋鈭隞隡雿靘靽靺靾鞃鞀鞂靻鞄鞁靿韎韍頖颭颮餂餀餇馝馜駃馹馻馺駂馽駇骱髣髧鬾鬿魠魡魟鳱鳲鳵麧僿儃儰僸儆儇僶僾儋儌僽儊劋劌勱勯噈噂噌嘵噁噊噉噆噘"],
+["e540","噚噀嘳嘽嘬嘾嘸嘪嘺圚墫墝墱墠墣墯墬墥墡壿嫿嫴嫽嫷嫶嬃嫸嬂嫹嬁嬇嬅嬏屧嶙嶗嶟嶒嶢嶓嶕嶠嶜嶡嶚嶞幩幝幠幜緳廛廞廡彉徲憋憃慹憱憰憢憉"],
+["e5a1","憛憓憯憭憟憒憪憡憍慦憳戭摮摰撖撠撅撗撜撏撋撊撌撣撟摨撱撘敶敺敹敻斲斳暵暰暩暲暷暪暯樀樆樗槥槸樕槱槤樠槿槬槢樛樝槾樧槲槮樔槷槧橀樈槦槻樍槼槫樉樄樘樥樏槶樦樇槴樖歑殥殣殢殦氁氀毿氂潁漦潾澇濆澒"],
+["e640","澍澉澌潢潏澅潚澖潶潬澂潕潲潒潐潗澔澓潝漀潡潫潽潧澐潓澋潩潿澕潣潷潪潻熲熯熛熰熠熚熩熵熝熥熞熤熡熪熜熧熳犘犚獘獒獞獟獠獝獛獡獚獙"],
+["e6a1","獢璇璉璊璆璁瑽璅璈瑼瑹甈甇畾瘥瘞瘙瘝瘜瘣瘚瘨瘛皜皝皞皛瞍瞏瞉瞈磍碻磏磌磑磎磔磈磃磄磉禚禡禠禜禢禛歶稹窲窴窳箷篋箾箬篎箯箹篊箵糅糈糌糋緷緛緪緧緗緡縃緺緦緶緱緰緮緟罶羬羰羭翭翫翪翬翦翨聤聧膣膟"],
+["e740","膞膕膢膙膗舖艏艓艒艐艎艑蔤蔻蔏蔀蔩蔎蔉蔍蔟蔊蔧蔜蓻蔫蓺蔈蔌蓴蔪蓲蔕蓷蓫蓳蓼蔒蓪蓩蔖蓾蔨蔝蔮蔂蓽蔞蓶蔱蔦蓧蓨蓰蓯蓹蔘蔠蔰蔋蔙蔯虢"],
+["e7a1","蝖蝣蝤蝷蟡蝳蝘蝔蝛蝒蝡蝚蝑蝞蝭蝪蝐蝎蝟蝝蝯蝬蝺蝮蝜蝥蝏蝻蝵蝢蝧蝩衚褅褌褔褋褗褘褙褆褖褑褎褉覢覤覣觭觰觬諏諆誸諓諑諔諕誻諗誾諀諅諘諃誺誽諙谾豍貏賥賟賙賨賚賝賧趠趜趡趛踠踣踥踤踮踕踛踖踑踙踦踧"],
+["e840","踔踒踘踓踜踗踚輬輤輘輚輠輣輖輗遳遰遯遧遫鄯鄫鄩鄪鄲鄦鄮醅醆醊醁醂醄醀鋐鋃鋄鋀鋙銶鋏鋱鋟鋘鋩鋗鋝鋌鋯鋂鋨鋊鋈鋎鋦鋍鋕鋉鋠鋞鋧鋑鋓"],
+["e8a1","銵鋡鋆銴镼閬閫閮閰隤隢雓霅霈霂靚鞊鞎鞈韐韏頞頝頦頩頨頠頛頧颲餈飺餑餔餖餗餕駜駍駏駓駔駎駉駖駘駋駗駌骳髬髫髳髲髱魆魃魧魴魱魦魶魵魰魨魤魬鳼鳺鳽鳿鳷鴇鴀鳹鳻鴈鴅鴄麃黓鼏鼐儜儓儗儚儑凞匴叡噰噠噮"],
+["e940","噳噦噣噭噲噞噷圜圛壈墽壉墿墺壂墼壆嬗嬙嬛嬡嬔嬓嬐嬖嬨嬚嬠嬞寯嶬嶱嶩嶧嶵嶰嶮嶪嶨嶲嶭嶯嶴幧幨幦幯廩廧廦廨廥彋徼憝憨憖懅憴懆懁懌憺"],
+["e9a1","憿憸憌擗擖擐擏擉撽撉擃擛擳擙攳敿敼斢曈暾曀曊曋曏暽暻暺曌朣樴橦橉橧樲橨樾橝橭橶橛橑樨橚樻樿橁橪橤橐橏橔橯橩橠樼橞橖橕橍橎橆歕歔歖殧殪殫毈毇氄氃氆澭濋澣濇澼濎濈潞濄澽澞濊澨瀄澥澮澺澬澪濏澿澸"],
+["ea40","澢濉澫濍澯澲澰燅燂熿熸燖燀燁燋燔燊燇燏熽燘熼燆燚燛犝犞獩獦獧獬獥獫獪瑿璚璠璔璒璕璡甋疀瘯瘭瘱瘽瘳瘼瘵瘲瘰皻盦瞚瞝瞡瞜瞛瞢瞣瞕瞙"],
+["eaa1","瞗磝磩磥磪磞磣磛磡磢磭磟磠禤穄穈穇窶窸窵窱窷篞篣篧篝篕篥篚篨篹篔篪篢篜篫篘篟糒糔糗糐糑縒縡縗縌縟縠縓縎縜縕縚縢縋縏縖縍縔縥縤罃罻罼罺羱翯耪耩聬膱膦膮膹膵膫膰膬膴膲膷膧臲艕艖艗蕖蕅蕫蕍蕓蕡蕘"],
+["eb40","蕀蕆蕤蕁蕢蕄蕑蕇蕣蔾蕛蕱蕎蕮蕵蕕蕧蕠薌蕦蕝蕔蕥蕬虣虥虤螛螏螗螓螒螈螁螖螘蝹螇螣螅螐螑螝螄螔螜螚螉褞褦褰褭褮褧褱褢褩褣褯褬褟觱諠"],
+["eba1","諢諲諴諵諝謔諤諟諰諈諞諡諨諿諯諻貑貒貐賵賮賱賰賳赬赮趥趧踳踾踸蹀蹅踶踼踽蹁踰踿躽輶輮輵輲輹輷輴遶遹遻邆郺鄳鄵鄶醓醐醑醍醏錧錞錈錟錆錏鍺錸錼錛錣錒錁鍆錭錎錍鋋錝鋺錥錓鋹鋷錴錂錤鋿錩錹錵錪錔錌"],
+["ec40","錋鋾錉錀鋻錖閼闍閾閹閺閶閿閵閽隩雔霋霒霐鞙鞗鞔韰韸頵頯頲餤餟餧餩馞駮駬駥駤駰駣駪駩駧骹骿骴骻髶髺髹髷鬳鮀鮅鮇魼魾魻鮂鮓鮒鮐魺鮕"],
+["eca1","魽鮈鴥鴗鴠鴞鴔鴩鴝鴘鴢鴐鴙鴟麈麆麇麮麭黕黖黺鼒鼽儦儥儢儤儠儩勴嚓嚌嚍嚆嚄嚃噾嚂噿嚁壖壔壏壒嬭嬥嬲嬣嬬嬧嬦嬯嬮孻寱寲嶷幬幪徾徻懃憵憼懧懠懥懤懨懞擯擩擣擫擤擨斁斀斶旚曒檍檖檁檥檉檟檛檡檞檇檓檎"],
+["ed40","檕檃檨檤檑橿檦檚檅檌檒歛殭氉濌澩濴濔濣濜濭濧濦濞濲濝濢濨燡燱燨燲燤燰燢獳獮獯璗璲璫璐璪璭璱璥璯甐甑甒甏疄癃癈癉癇皤盩瞵瞫瞲瞷瞶"],
+["eda1","瞴瞱瞨矰磳磽礂磻磼磲礅磹磾礄禫禨穜穛穖穘穔穚窾竀竁簅簏篲簀篿篻簎篴簋篳簂簉簃簁篸篽簆篰篱簐簊糨縭縼繂縳顈縸縪繉繀繇縩繌縰縻縶繄縺罅罿罾罽翴翲耬膻臄臌臊臅臇膼臩艛艚艜薃薀薏薧薕薠薋薣蕻薤薚薞"],
+["ee40","蕷蕼薉薡蕺蕸蕗薎薖薆薍薙薝薁薢薂薈薅蕹蕶薘薐薟虨螾螪螭蟅螰螬螹螵螼螮蟉蟃蟂蟌螷螯蟄蟊螴螶螿螸螽蟞螲褵褳褼褾襁襒褷襂覭覯覮觲觳謞"],
+["eea1","謘謖謑謅謋謢謏謒謕謇謍謈謆謜謓謚豏豰豲豱豯貕貔賹赯蹎蹍蹓蹐蹌蹇轃轀邅遾鄸醚醢醛醙醟醡醝醠鎡鎃鎯鍤鍖鍇鍼鍘鍜鍶鍉鍐鍑鍠鍭鎏鍌鍪鍹鍗鍕鍒鍏鍱鍷鍻鍡鍞鍣鍧鎀鍎鍙闇闀闉闃闅閷隮隰隬霠霟霘霝霙鞚鞡鞜"],
+["ef40","鞞鞝韕韔韱顁顄顊顉顅顃餥餫餬餪餳餲餯餭餱餰馘馣馡騂駺駴駷駹駸駶駻駽駾駼騃骾髾髽鬁髼魈鮚鮨鮞鮛鮦鮡鮥鮤鮆鮢鮠鮯鴳鵁鵧鴶鴮鴯鴱鴸鴰"],
+["efa1","鵅鵂鵃鴾鴷鵀鴽翵鴭麊麉麍麰黈黚黻黿鼤鼣鼢齔龠儱儭儮嚘嚜嚗嚚嚝嚙奰嬼屩屪巀幭幮懘懟懭懮懱懪懰懫懖懩擿攄擽擸攁攃擼斔旛曚曛曘櫅檹檽櫡櫆檺檶檷櫇檴檭歞毉氋瀇瀌瀍瀁瀅瀔瀎濿瀀濻瀦濼濷瀊爁燿燹爃燽獶"],
+["f040","璸瓀璵瓁璾璶璻瓂甔甓癜癤癙癐癓癗癚皦皽盬矂瞺磿礌礓礔礉礐礒礑禭禬穟簜簩簙簠簟簭簝簦簨簢簥簰繜繐繖繣繘繢繟繑繠繗繓羵羳翷翸聵臑臒"],
+["f0a1","臐艟艞薴藆藀藃藂薳薵薽藇藄薿藋藎藈藅薱薶藒蘤薸薷薾虩蟧蟦蟢蟛蟫蟪蟥蟟蟳蟤蟔蟜蟓蟭蟘蟣螤蟗蟙蠁蟴蟨蟝襓襋襏襌襆襐襑襉謪謧謣謳謰謵譇謯謼謾謱謥謷謦謶謮謤謻謽謺豂豵貙貘貗賾贄贂贀蹜蹢蹠蹗蹖蹞蹥蹧"],
+["f140","蹛蹚蹡蹝蹩蹔轆轇轈轋鄨鄺鄻鄾醨醥醧醯醪鎵鎌鎒鎷鎛鎝鎉鎧鎎鎪鎞鎦鎕鎈鎙鎟鎍鎱鎑鎲鎤鎨鎴鎣鎥闒闓闑隳雗雚巂雟雘雝霣霢霥鞬鞮鞨鞫鞤鞪"],
+["f1a1","鞢鞥韗韙韖韘韺顐顑顒颸饁餼餺騏騋騉騍騄騑騊騅騇騆髀髜鬈鬄鬅鬩鬵魊魌魋鯇鯆鯃鮿鯁鮵鮸鯓鮶鯄鮹鮽鵜鵓鵏鵊鵛鵋鵙鵖鵌鵗鵒鵔鵟鵘鵚麎麌黟鼁鼀鼖鼥鼫鼪鼩鼨齌齕儴儵劖勷厴嚫嚭嚦嚧嚪嚬壚壝壛夒嬽嬾嬿巃幰"],
+["f240","徿懻攇攐攍攉攌攎斄旞旝曞櫧櫠櫌櫑櫙櫋櫟櫜櫐櫫櫏櫍櫞歠殰氌瀙瀧瀠瀖瀫瀡瀢瀣瀩瀗瀤瀜瀪爌爊爇爂爅犥犦犤犣犡瓋瓅璷瓃甖癠矉矊矄矱礝礛"],
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+["f7a1","驉驒驐髐鬙鬫鬻魖魕鱆鱈鰿鱄鰹鰳鱁鰼鰷鰴鰲鰽鰶鷛鷒鷞鷚鷋鷐鷜鷑鷟鷩鷙鷘鷖鷵鷕鷝麶黰鼵鼳鼲齂齫龕龢儽劙壨壧奲孍巘蠯彏戁戃戄攩攥斖曫欑欒欏毊灛灚爢玂玁玃癰矔籧籦纕艬蘺虀蘹蘼蘱蘻蘾蠰蠲蠮蠳襶襴襳觾"],
+["f840","讌讎讋讈豅贙躘轤轣醼鑢鑕鑝鑗鑞韄韅頀驖驙鬞鬟鬠鱒鱘鱐鱊鱍鱋鱕鱙鱌鱎鷻鷷鷯鷣鷫鷸鷤鷶鷡鷮鷦鷲鷰鷢鷬鷴鷳鷨鷭黂黐黲黳鼆鼜鼸鼷鼶齃齏"],
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+["f940","纘纛纙臠臡虆虇虈襹襺襼襻觿讘讙躥躤躣鑮鑭鑯鑱鑳靉顲饟鱨鱮鱭鸋鸍鸐鸏鸒鸑麡黵鼉齇齸齻齺齹圞灦籯蠼趲躦釃鑴鑸鑶鑵驠鱴鱳鱱鱵鸔鸓黶鼊"],
+["f9a1","龤灨灥糷虪蠾蠽蠿讞貜躩軉靋顳顴飌饡馫驤驦驧鬤鸕鸗齈戇欞爧虌躨钂钀钁驩驨鬮鸙爩虋讟钃鱹麷癵驫鱺鸝灩灪麤齾齉龘碁銹裏墻恒粧嫺╔╦╗╠╬╣╚╩╝╒╤╕╞╪╡╘╧╛╓╥╖╟╫╢╙╨╜║═╭╮╰╯▓"]
+]
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/tables/eucjp.json b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/eucjp.json
new file mode 100644
index 0000000..4fa61ca
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/eucjp.json
@@ -0,0 +1,182 @@
+[
+["0","\u0000",127],
+["8ea1","｡",62],
+["a1a1","　、。，．・：；？！゛゜´｀¨＾￣＿ヽヾゝゞ〃仝々〆〇ー―‐／＼～∥｜…‥‘’“”（）〔〕［］｛｝〈",9,"＋－±×÷＝≠＜＞≦≧∞∴♂♀°′″℃￥＄￠￡％＃＆＊＠§☆★○●◎◇"],
+["a2a1","◆□■△▲▽▼※〒→←↑↓〓"],
+["a2ba","∈∋⊆⊇⊂⊃∪∩"],
+["a2ca","∧∨￢⇒⇔∀∃"],
+["a2dc","∠⊥⌒∂∇≡≒≪≫√∽∝∵∫∬"],
+["a2f2","ʼn♯♭♪†‡¶"],
+["a2fe","◯"],
+["a3b0","０",9],
+["a3c1","Ａ",25],
+["a3e1","ａ",25],
+["a4a1","ぁ",82],
+["a5a1","ァ",85],
+["a6a1","Α",16,"Σ",6],
+["a6c1","α",16,"σ",6],
+["a7a1","А",5,"ЁЖ",25],
+["a7d1","а",5,"ёж",25],
+["a8a1","─│┌┐┘└├┬┤┴┼━┃┏┓┛┗┣┳┫┻╋┠┯┨┷┿┝┰┥┸╂"],
+["ada1","①",19,"Ⅰ",9],
+["adc0","㍉㌔㌢㍍㌘㌧㌃㌶㍑㍗㌍㌦㌣㌫㍊㌻㎜㎝㎞㎎㎏㏄㎡"],
+["addf","㍻〝〟№㏍℡㊤",4,"㈱㈲㈹㍾㍽㍼≒≡∫∮∑√⊥∠∟⊿∵∩∪"],
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+["b1a1","院陰隠韻吋右宇烏羽迂雨卯鵜窺丑碓臼渦嘘唄欝蔚鰻姥厩浦瓜閏噂云運雲荏餌叡営嬰影映曳栄永泳洩瑛盈穎頴英衛詠鋭液疫益駅悦謁越閲榎厭円園堰奄宴延怨掩援沿演炎焔煙燕猿縁艶苑薗遠鉛鴛塩於汚甥凹央奥往応"],
+["b2a1","押旺横欧殴王翁襖鴬鴎黄岡沖荻億屋憶臆桶牡乙俺卸恩温穏音下化仮何伽価佳加可嘉夏嫁家寡科暇果架歌河火珂禍禾稼箇花苛茄荷華菓蝦課嘩貨迦過霞蚊俄峨我牙画臥芽蛾賀雅餓駕介会解回塊壊廻快怪悔恢懐戒拐改"],
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+["b4a1","粥刈苅瓦乾侃冠寒刊勘勧巻喚堪姦完官寛干幹患感慣憾換敢柑桓棺款歓汗漢澗潅環甘監看竿管簡緩缶翰肝艦莞観諌貫還鑑間閑関陥韓館舘丸含岸巌玩癌眼岩翫贋雁頑顔願企伎危喜器基奇嬉寄岐希幾忌揮机旗既期棋棄"],
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+["b6a1","供侠僑兇競共凶協匡卿叫喬境峡強彊怯恐恭挟教橋況狂狭矯胸脅興蕎郷鏡響饗驚仰凝尭暁業局曲極玉桐粁僅勤均巾錦斤欣欽琴禁禽筋緊芹菌衿襟謹近金吟銀九倶句区狗玖矩苦躯駆駈駒具愚虞喰空偶寓遇隅串櫛釧屑屈"],
+["b7a1","掘窟沓靴轡窪熊隈粂栗繰桑鍬勲君薫訓群軍郡卦袈祁係傾刑兄啓圭珪型契形径恵慶慧憩掲携敬景桂渓畦稽系経継繋罫茎荊蛍計詣警軽頚鶏芸迎鯨劇戟撃激隙桁傑欠決潔穴結血訣月件倹倦健兼券剣喧圏堅嫌建憲懸拳捲"],
+["b8a1","検権牽犬献研硯絹県肩見謙賢軒遣鍵険顕験鹸元原厳幻弦減源玄現絃舷言諺限乎個古呼固姑孤己庫弧戸故枯湖狐糊袴股胡菰虎誇跨鈷雇顧鼓五互伍午呉吾娯後御悟梧檎瑚碁語誤護醐乞鯉交佼侯候倖光公功効勾厚口向"],
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+["baa1","此頃今困坤墾婚恨懇昏昆根梱混痕紺艮魂些佐叉唆嵯左差査沙瑳砂詐鎖裟坐座挫債催再最哉塞妻宰彩才採栽歳済災采犀砕砦祭斎細菜裁載際剤在材罪財冴坂阪堺榊肴咲崎埼碕鷺作削咋搾昨朔柵窄策索錯桜鮭笹匙冊刷"],
+["bba1","察拶撮擦札殺薩雑皐鯖捌錆鮫皿晒三傘参山惨撒散桟燦珊産算纂蚕讃賛酸餐斬暫残仕仔伺使刺司史嗣四士始姉姿子屍市師志思指支孜斯施旨枝止死氏獅祉私糸紙紫肢脂至視詞詩試誌諮資賜雌飼歯事似侍児字寺慈持時"],
+["bca1","次滋治爾璽痔磁示而耳自蒔辞汐鹿式識鴫竺軸宍雫七叱執失嫉室悉湿漆疾質実蔀篠偲柴芝屡蕊縞舎写射捨赦斜煮社紗者謝車遮蛇邪借勺尺杓灼爵酌釈錫若寂弱惹主取守手朱殊狩珠種腫趣酒首儒受呪寿授樹綬需囚収周"],
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+["c0a1","澄摺寸世瀬畝是凄制勢姓征性成政整星晴棲栖正清牲生盛精聖声製西誠誓請逝醒青静斉税脆隻席惜戚斥昔析石積籍績脊責赤跡蹟碩切拙接摂折設窃節説雪絶舌蝉仙先千占宣専尖川戦扇撰栓栴泉浅洗染潜煎煽旋穿箭線"],
+["c1a1","繊羨腺舛船薦詮賎践選遷銭銑閃鮮前善漸然全禅繕膳糎噌塑岨措曾曽楚狙疏疎礎祖租粗素組蘇訴阻遡鼠僧創双叢倉喪壮奏爽宋層匝惣想捜掃挿掻操早曹巣槍槽漕燥争痩相窓糟総綜聡草荘葬蒼藻装走送遭鎗霜騒像増憎"],
+["c2a1","臓蔵贈造促側則即息捉束測足速俗属賊族続卒袖其揃存孫尊損村遜他多太汰詑唾堕妥惰打柁舵楕陀駄騨体堆対耐岱帯待怠態戴替泰滞胎腿苔袋貸退逮隊黛鯛代台大第醍題鷹滝瀧卓啄宅托択拓沢濯琢託鐸濁諾茸凧蛸只"],
+["c3a1","叩但達辰奪脱巽竪辿棚谷狸鱈樽誰丹単嘆坦担探旦歎淡湛炭短端箪綻耽胆蛋誕鍛団壇弾断暖檀段男談値知地弛恥智池痴稚置致蜘遅馳築畜竹筑蓄逐秩窒茶嫡着中仲宙忠抽昼柱注虫衷註酎鋳駐樗瀦猪苧著貯丁兆凋喋寵"],
+["c4a1","帖帳庁弔張彫徴懲挑暢朝潮牒町眺聴脹腸蝶調諜超跳銚長頂鳥勅捗直朕沈珍賃鎮陳津墜椎槌追鎚痛通塚栂掴槻佃漬柘辻蔦綴鍔椿潰坪壷嬬紬爪吊釣鶴亭低停偵剃貞呈堤定帝底庭廷弟悌抵挺提梯汀碇禎程締艇訂諦蹄逓"],
+["c5a1","邸鄭釘鼎泥摘擢敵滴的笛適鏑溺哲徹撤轍迭鉄典填天展店添纏甜貼転顛点伝殿澱田電兎吐堵塗妬屠徒斗杜渡登菟賭途都鍍砥砺努度土奴怒倒党冬凍刀唐塔塘套宕島嶋悼投搭東桃梼棟盗淘湯涛灯燈当痘祷等答筒糖統到"],
+["c6a1","董蕩藤討謄豆踏逃透鐙陶頭騰闘働動同堂導憧撞洞瞳童胴萄道銅峠鴇匿得徳涜特督禿篤毒独読栃橡凸突椴届鳶苫寅酉瀞噸屯惇敦沌豚遁頓呑曇鈍奈那内乍凪薙謎灘捺鍋楢馴縄畷南楠軟難汝二尼弐迩匂賑肉虹廿日乳入"],
+["c7a1","如尿韮任妊忍認濡禰祢寧葱猫熱年念捻撚燃粘乃廼之埜嚢悩濃納能脳膿農覗蚤巴把播覇杷波派琶破婆罵芭馬俳廃拝排敗杯盃牌背肺輩配倍培媒梅楳煤狽買売賠陪這蝿秤矧萩伯剥博拍柏泊白箔粕舶薄迫曝漠爆縛莫駁麦"],
+["c8a1","函箱硲箸肇筈櫨幡肌畑畠八鉢溌発醗髪伐罰抜筏閥鳩噺塙蛤隼伴判半反叛帆搬斑板氾汎版犯班畔繁般藩販範釆煩頒飯挽晩番盤磐蕃蛮匪卑否妃庇彼悲扉批披斐比泌疲皮碑秘緋罷肥被誹費避非飛樋簸備尾微枇毘琵眉美"],
+["c9a1","鼻柊稗匹疋髭彦膝菱肘弼必畢筆逼桧姫媛紐百謬俵彪標氷漂瓢票表評豹廟描病秒苗錨鋲蒜蛭鰭品彬斌浜瀕貧賓頻敏瓶不付埠夫婦富冨布府怖扶敷斧普浮父符腐膚芙譜負賦赴阜附侮撫武舞葡蕪部封楓風葺蕗伏副復幅服"],
+["caa1","福腹複覆淵弗払沸仏物鮒分吻噴墳憤扮焚奮粉糞紛雰文聞丙併兵塀幣平弊柄並蔽閉陛米頁僻壁癖碧別瞥蔑箆偏変片篇編辺返遍便勉娩弁鞭保舗鋪圃捕歩甫補輔穂募墓慕戊暮母簿菩倣俸包呆報奉宝峰峯崩庖抱捧放方朋"],
+["cba1","法泡烹砲縫胞芳萌蓬蜂褒訪豊邦鋒飽鳳鵬乏亡傍剖坊妨帽忘忙房暴望某棒冒紡肪膨謀貌貿鉾防吠頬北僕卜墨撲朴牧睦穆釦勃没殆堀幌奔本翻凡盆摩磨魔麻埋妹昧枚毎哩槙幕膜枕鮪柾鱒桝亦俣又抹末沫迄侭繭麿万慢満"],
+["cca1","漫蔓味未魅巳箕岬密蜜湊蓑稔脈妙粍民眠務夢無牟矛霧鵡椋婿娘冥名命明盟迷銘鳴姪牝滅免棉綿緬面麺摸模茂妄孟毛猛盲網耗蒙儲木黙目杢勿餅尤戻籾貰問悶紋門匁也冶夜爺耶野弥矢厄役約薬訳躍靖柳薮鑓愉愈油癒"],
+["cda1","諭輸唯佑優勇友宥幽悠憂揖有柚湧涌猶猷由祐裕誘遊邑郵雄融夕予余与誉輿預傭幼妖容庸揚揺擁曜楊様洋溶熔用窯羊耀葉蓉要謡踊遥陽養慾抑欲沃浴翌翼淀羅螺裸来莱頼雷洛絡落酪乱卵嵐欄濫藍蘭覧利吏履李梨理璃"],
+["cea1","痢裏裡里離陸律率立葎掠略劉流溜琉留硫粒隆竜龍侶慮旅虜了亮僚両凌寮料梁涼猟療瞭稜糧良諒遼量陵領力緑倫厘林淋燐琳臨輪隣鱗麟瑠塁涙累類令伶例冷励嶺怜玲礼苓鈴隷零霊麗齢暦歴列劣烈裂廉恋憐漣煉簾練聯"],
+["cfa1","蓮連錬呂魯櫓炉賂路露労婁廊弄朗楼榔浪漏牢狼篭老聾蝋郎六麓禄肋録論倭和話歪賄脇惑枠鷲亙亘鰐詫藁蕨椀湾碗腕"],
+["d0a1","弌丐丕个丱丶丼丿乂乖乘亂亅豫亊舒弍于亞亟亠亢亰亳亶从仍仄仆仂仗仞仭仟价伉佚估佛佝佗佇佶侈侏侘佻佩佰侑佯來侖儘俔俟俎俘俛俑俚俐俤俥倚倨倔倪倥倅伜俶倡倩倬俾俯們倆偃假會偕偐偈做偖偬偸傀傚傅傴傲"],
+["d1a1","僉僊傳僂僖僞僥僭僣僮價僵儉儁儂儖儕儔儚儡儺儷儼儻儿兀兒兌兔兢竸兩兪兮冀冂囘册冉冏冑冓冕冖冤冦冢冩冪冫决冱冲冰况冽凅凉凛几處凩凭凰凵凾刄刋刔刎刧刪刮刳刹剏剄剋剌剞剔剪剴剩剳剿剽劍劔劒剱劈劑辨"],
+["d2a1","辧劬劭劼劵勁勍勗勞勣勦飭勠勳勵勸勹匆匈甸匍匐匏匕匚匣匯匱匳匸區卆卅丗卉卍凖卞卩卮夘卻卷厂厖厠厦厥厮厰厶參簒雙叟曼燮叮叨叭叺吁吽呀听吭吼吮吶吩吝呎咏呵咎呟呱呷呰咒呻咀呶咄咐咆哇咢咸咥咬哄哈咨"],
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+["d5a1","奸妁妝佞侫妣妲姆姨姜妍姙姚娥娟娑娜娉娚婀婬婉娵娶婢婪媚媼媾嫋嫂媽嫣嫗嫦嫩嫖嫺嫻嬌嬋嬖嬲嫐嬪嬶嬾孃孅孀孑孕孚孛孥孩孰孳孵學斈孺宀它宦宸寃寇寉寔寐寤實寢寞寥寫寰寶寳尅將專對尓尠尢尨尸尹屁屆屎屓"],
+["d6a1","屐屏孱屬屮乢屶屹岌岑岔妛岫岻岶岼岷峅岾峇峙峩峽峺峭嶌峪崋崕崗嵜崟崛崑崔崢崚崙崘嵌嵒嵎嵋嵬嵳嵶嶇嶄嶂嶢嶝嶬嶮嶽嶐嶷嶼巉巍巓巒巖巛巫已巵帋帚帙帑帛帶帷幄幃幀幎幗幔幟幢幤幇幵并幺麼广庠廁廂廈廐廏"],
+["d7a1","廖廣廝廚廛廢廡廨廩廬廱廳廰廴廸廾弃弉彝彜弋弑弖弩弭弸彁彈彌彎弯彑彖彗彙彡彭彳彷徃徂彿徊很徑徇從徙徘徠徨徭徼忖忻忤忸忱忝悳忿怡恠怙怐怩怎怱怛怕怫怦怏怺恚恁恪恷恟恊恆恍恣恃恤恂恬恫恙悁悍惧悃悚"],
+["d8a1","悄悛悖悗悒悧悋惡悸惠惓悴忰悽惆悵惘慍愕愆惶惷愀惴惺愃愡惻惱愍愎慇愾愨愧慊愿愼愬愴愽慂慄慳慷慘慙慚慫慴慯慥慱慟慝慓慵憙憖憇憬憔憚憊憑憫憮懌懊應懷懈懃懆憺懋罹懍懦懣懶懺懴懿懽懼懾戀戈戉戍戌戔戛"],
+["d9a1","戞戡截戮戰戲戳扁扎扞扣扛扠扨扼抂抉找抒抓抖拔抃抔拗拑抻拏拿拆擔拈拜拌拊拂拇抛拉挌拮拱挧挂挈拯拵捐挾捍搜捏掖掎掀掫捶掣掏掉掟掵捫捩掾揩揀揆揣揉插揶揄搖搴搆搓搦搶攝搗搨搏摧摯摶摎攪撕撓撥撩撈撼"],
+["daa1","據擒擅擇撻擘擂擱擧舉擠擡抬擣擯攬擶擴擲擺攀擽攘攜攅攤攣攫攴攵攷收攸畋效敖敕敍敘敞敝敲數斂斃變斛斟斫斷旃旆旁旄旌旒旛旙无旡旱杲昊昃旻杳昵昶昴昜晏晄晉晁晞晝晤晧晨晟晢晰暃暈暎暉暄暘暝曁暹曉暾暼"],
+["dba1","曄暸曖曚曠昿曦曩曰曵曷朏朖朞朦朧霸朮朿朶杁朸朷杆杞杠杙杣杤枉杰枩杼杪枌枋枦枡枅枷柯枴柬枳柩枸柤柞柝柢柮枹柎柆柧檜栞框栩桀桍栲桎梳栫桙档桷桿梟梏梭梔條梛梃檮梹桴梵梠梺椏梍桾椁棊椈棘椢椦棡椌棍"],
+["dca1","棔棧棕椶椒椄棗棣椥棹棠棯椨椪椚椣椡棆楹楷楜楸楫楔楾楮椹楴椽楙椰楡楞楝榁楪榲榮槐榿槁槓榾槎寨槊槝榻槃榧樮榑榠榜榕榴槞槨樂樛槿權槹槲槧樅榱樞槭樔槫樊樒櫁樣樓橄樌橲樶橸橇橢橙橦橈樸樢檐檍檠檄檢檣"],
+["dda1","檗蘗檻櫃櫂檸檳檬櫞櫑櫟檪櫚櫪櫻欅蘖櫺欒欖鬱欟欸欷盜欹飮歇歃歉歐歙歔歛歟歡歸歹歿殀殄殃殍殘殕殞殤殪殫殯殲殱殳殷殼毆毋毓毟毬毫毳毯麾氈氓气氛氤氣汞汕汢汪沂沍沚沁沛汾汨汳沒沐泄泱泓沽泗泅泝沮沱沾"],
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+["e0a1","燹燿爍爐爛爨爭爬爰爲爻爼爿牀牆牋牘牴牾犂犁犇犒犖犢犧犹犲狃狆狄狎狒狢狠狡狹狷倏猗猊猜猖猝猴猯猩猥猾獎獏默獗獪獨獰獸獵獻獺珈玳珎玻珀珥珮珞璢琅瑯琥珸琲琺瑕琿瑟瑙瑁瑜瑩瑰瑣瑪瑶瑾璋璞璧瓊瓏瓔珱"],
+["e1a1","瓠瓣瓧瓩瓮瓲瓰瓱瓸瓷甄甃甅甌甎甍甕甓甞甦甬甼畄畍畊畉畛畆畚畩畤畧畫畭畸當疆疇畴疊疉疂疔疚疝疥疣痂疳痃疵疽疸疼疱痍痊痒痙痣痞痾痿痼瘁痰痺痲痳瘋瘍瘉瘟瘧瘠瘡瘢瘤瘴瘰瘻癇癈癆癜癘癡癢癨癩癪癧癬癰"],
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+["8fc9a1","濚濞濨濩濰濵濹濼濽瀀瀅瀆瀇瀍瀗瀠瀣瀯瀴瀷瀹瀼灃灄灈灉灊灋灔灕灝灞灎灤灥灬灮灵灶灾炁炅炆炔",4,"炛炤炫炰炱炴炷烊烑烓烔烕烖烘烜烤烺焃",4,"焋焌焏焞焠焫焭焯焰焱焸煁煅煆煇煊煋煐煒煗煚煜煞煠"],
+["8fcaa1","煨煹熀熅熇熌熒熚熛熠熢熯熰熲熳熺熿燀燁燄燋燌燓燖燙燚燜燸燾爀爇爈爉爓爗爚爝爟爤爫爯爴爸爹牁牂牃牅牎牏牐牓牕牖牚牜牞牠牣牨牫牮牯牱牷牸牻牼牿犄犉犍犎犓犛犨犭犮犱犴犾狁狇狉狌狕狖狘狟狥狳狴狺狻"],
+["8fcba1","狾猂猄猅猇猋猍猒猓猘猙猞猢猤猧猨猬猱猲猵猺猻猽獃獍獐獒獖獘獝獞獟獠獦獧獩獫獬獮獯獱獷獹獼玀玁玃玅玆玎玐玓玕玗玘玜玞玟玠玢玥玦玪玫玭玵玷玹玼玽玿珅珆珉珋珌珏珒珓珖珙珝珡珣珦珧珩珴珵珷珹珺珻珽"],
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+["8fcda1","甒甖甗甠甡甤甧甩甪甯甶甹甽甾甿畀畃畇畈畎畐畒畗畞畟畡畯畱畹",5,"疁疅疐疒疓疕疙疜疢疤疴疺疿痀痁痄痆痌痎痏痗痜痟痠痡痤痧痬痮痯痱痹瘀瘂瘃瘄瘇瘈瘊瘌瘏瘒瘓瘕瘖瘙瘛瘜瘝瘞瘣瘥瘦瘩瘭瘲瘳瘵瘸瘹"],
+["8fcea1","瘺瘼癊癀癁癃癄癅癉癋癕癙癟癤癥癭癮癯癱癴皁皅皌皍皕皛皜皝皟皠皢",6,"皪皭皽盁盅盉盋盌盎盔盙盠盦盨盬盰盱盶盹盼眀眆眊眎眒眔眕眗眙眚眜眢眨眭眮眯眴眵眶眹眽眾睂睅睆睊睍睎睏睒睖睗睜睞睟睠睢"],
+["8fcfa1","睤睧睪睬睰睲睳睴睺睽瞀瞄瞌瞍瞔瞕瞖瞚瞟瞢瞧瞪瞮瞯瞱瞵瞾矃矉矑矒矕矙矞矟矠矤矦矪矬矰矱矴矸矻砅砆砉砍砎砑砝砡砢砣砭砮砰砵砷硃硄硇硈硌硎硒硜硞硠硡硣硤硨硪确硺硾碊碏碔碘碡碝碞碟碤碨碬碭碰碱碲碳"],
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+["8fd1a1","秠秢秥秪秫秭秱秸秼稂稃稇稉稊稌稑稕稛稞稡稧稫稭稯稰稴稵稸稹稺穄穅穇穈穌穕穖穙穜穝穟穠穥穧穪穭穵穸穾窀窂窅窆窊窋窐窑窔窞窠窣窬窳窵窹窻窼竆竉竌竎竑竛竨竩竫竬竱竴竻竽竾笇笔笟笣笧笩笪笫笭笮笯笰"],
+["8fd2a1","笱笴笽笿筀筁筇筎筕筠筤筦筩筪筭筯筲筳筷箄箉箎箐箑箖箛箞箠箥箬箯箰箲箵箶箺箻箼箽篂篅篈篊篔篖篗篙篚篛篨篪篲篴篵篸篹篺篼篾簁簂簃簄簆簉簋簌簎簏簙簛簠簥簦簨簬簱簳簴簶簹簺籆籊籕籑籒籓籙",5],
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+["8fd4a1","綞綦綧綪綳綶綷綹緂",4,"緌緍緎緗緙縀緢緥緦緪緫緭緱緵緶緹緺縈縐縑縕縗縜縝縠縧縨縬縭縯縳縶縿繄繅繇繎繐繒繘繟繡繢繥繫繮繯繳繸繾纁纆纇纊纍纑纕纘纚纝纞缼缻缽缾缿罃罄罇罏罒罓罛罜罝罡罣罤罥罦罭"],
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+["8fd6a1","胰胲胳胶胹胺胾脃脋脖脗脘脜脞脠脤脧脬脰脵脺脼腅腇腊腌腒腗腠腡腧腨腩腭腯腷膁膐膄膅膆膋膎膖膘膛膞膢膮膲膴膻臋臃臅臊臎臏臕臗臛臝臞臡臤臫臬臰臱臲臵臶臸臹臽臿舀舃舏舓舔舙舚舝舡舢舨舲舴舺艃艄艅艆"],
+["8fd7a1","艋艎艏艑艖艜艠艣艧艭艴艻艽艿芀芁芃芄芇芉芊芎芑芔芖芘芚芛芠芡芣芤芧芨芩芪芮芰芲芴芷芺芼芾芿苆苐苕苚苠苢苤苨苪苭苯苶苷苽苾茀茁茇茈茊茋荔茛茝茞茟茡茢茬茭茮茰茳茷茺茼茽荂荃荄荇荍荎荑荕荖荗荰荸"],
+["8fd8a1","荽荿莀莂莄莆莍莒莔莕莘莙莛莜莝莦莧莩莬莾莿菀菇菉菏菐菑菔菝荓菨菪菶菸菹菼萁萆萊萏萑萕萙莭萯萹葅葇葈葊葍葏葑葒葖葘葙葚葜葠葤葥葧葪葰葳葴葶葸葼葽蒁蒅蒒蒓蒕蒞蒦蒨蒩蒪蒯蒱蒴蒺蒽蒾蓀蓂蓇蓈蓌蓏蓓"],
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+["8fdaa1","藿蘀蘄蘅蘍蘎蘐蘑蘒蘘蘙蘛蘞蘡蘧蘩蘶蘸蘺蘼蘽虀虂虆虒虓虖虗虘虙虝虠",4,"虩虬虯虵虶虷虺蚍蚑蚖蚘蚚蚜蚡蚦蚧蚨蚭蚱蚳蚴蚵蚷蚸蚹蚿蛀蛁蛃蛅蛑蛒蛕蛗蛚蛜蛠蛣蛥蛧蚈蛺蛼蛽蜄蜅蜇蜋蜎蜏蜐蜓蜔蜙蜞蜟蜡蜣"],
+["8fdba1","蜨蜮蜯蜱蜲蜹蜺蜼蜽蜾蝀蝃蝅蝍蝘蝝蝡蝤蝥蝯蝱蝲蝻螃",6,"螋螌螐螓螕螗螘螙螞螠螣螧螬螭螮螱螵螾螿蟁蟈蟉蟊蟎蟕蟖蟙蟚蟜蟟蟢蟣蟤蟪蟫蟭蟱蟳蟸蟺蟿蠁蠃蠆蠉蠊蠋蠐蠙蠒蠓蠔蠘蠚蠛蠜蠞蠟蠨蠭蠮蠰蠲蠵"],
+["8fdca1","蠺蠼衁衃衅衈衉衊衋衎衑衕衖衘衚衜衟衠衤衩衱衹衻袀袘袚袛袜袟袠袨袪袺袽袾裀裊",4,"裑裒裓裛裞裧裯裰裱裵裷褁褆褍褎褏褕褖褘褙褚褜褠褦褧褨褰褱褲褵褹褺褾襀襂襅襆襉襏襒襗襚襛襜襡襢襣襫襮襰襳襵襺"],
+["8fdda1","襻襼襽覉覍覐覔覕覛覜覟覠覥覰覴覵覶覷覼觔",4,"觥觩觫觭觱觳觶觹觽觿訄訅訇訏訑訒訔訕訞訠訢訤訦訫訬訯訵訷訽訾詀詃詅詇詉詍詎詓詖詗詘詜詝詡詥詧詵詶詷詹詺詻詾詿誀誃誆誋誏誐誒誖誗誙誟誧誩誮誯誳"],
+["8fdea1","誶誷誻誾諃諆諈諉諊諑諓諔諕諗諝諟諬諰諴諵諶諼諿謅謆謋謑謜謞謟謊謭謰謷謼譂",4,"譈譒譓譔譙譍譞譣譭譶譸譹譼譾讁讄讅讋讍讏讔讕讜讞讟谸谹谽谾豅豇豉豋豏豑豓豔豗豘豛豝豙豣豤豦豨豩豭豳豵豶豻豾貆"],
+["8fdfa1","貇貋貐貒貓貙貛貜貤貹貺賅賆賉賋賏賖賕賙賝賡賨賬賯賰賲賵賷賸賾賿贁贃贉贒贗贛赥赩赬赮赿趂趄趈趍趐趑趕趞趟趠趦趫趬趯趲趵趷趹趻跀跅跆跇跈跊跎跑跔跕跗跙跤跥跧跬跰趼跱跲跴跽踁踄踅踆踋踑踔踖踠踡踢"],
+["8fe0a1","踣踦踧踱踳踶踷踸踹踽蹀蹁蹋蹍蹎蹏蹔蹛蹜蹝蹞蹡蹢蹩蹬蹭蹯蹰蹱蹹蹺蹻躂躃躉躐躒躕躚躛躝躞躢躧躩躭躮躳躵躺躻軀軁軃軄軇軏軑軔軜軨軮軰軱軷軹軺軭輀輂輇輈輏輐輖輗輘輞輠輡輣輥輧輨輬輭輮輴輵輶輷輺轀轁"],
+["8fe1a1","轃轇轏轑",4,"轘轝轞轥辝辠辡辤辥辦辵辶辸达迀迁迆迊迋迍运迒迓迕迠迣迤迨迮迱迵迶迻迾适逄逈逌逘逛逨逩逯逪逬逭逳逴逷逿遃遄遌遛遝遢遦遧遬遰遴遹邅邈邋邌邎邐邕邗邘邙邛邠邡邢邥邰邲邳邴邶邽郌邾郃"],
+["8fe2a1","郄郅郇郈郕郗郘郙郜郝郟郥郒郶郫郯郰郴郾郿鄀鄄鄅鄆鄈鄍鄐鄔鄖鄗鄘鄚鄜鄞鄠鄥鄢鄣鄧鄩鄮鄯鄱鄴鄶鄷鄹鄺鄼鄽酃酇酈酏酓酗酙酚酛酡酤酧酭酴酹酺酻醁醃醅醆醊醎醑醓醔醕醘醞醡醦醨醬醭醮醰醱醲醳醶醻醼醽醿"],
+["8fe3a1","釂釃釅釓釔釗釙釚釞釤釥釩釪釬",5,"釷釹釻釽鈀鈁鈄鈅鈆鈇鈉鈊鈌鈐鈒鈓鈖鈘鈜鈝鈣鈤鈥鈦鈨鈮鈯鈰鈳鈵鈶鈸鈹鈺鈼鈾鉀鉂鉃鉆鉇鉊鉍鉎鉏鉑鉘鉙鉜鉝鉠鉡鉥鉧鉨鉩鉮鉯鉰鉵",4,"鉻鉼鉽鉿銈銉銊銍銎銒銗"],
+["8fe4a1","銙銟銠銤銥銧銨銫銯銲銶銸銺銻銼銽銿",4,"鋅鋆鋇鋈鋋鋌鋍鋎鋐鋓鋕鋗鋘鋙鋜鋝鋟鋠鋡鋣鋥鋧鋨鋬鋮鋰鋹鋻鋿錀錂錈錍錑錔錕錜錝錞錟錡錤錥錧錩錪錳錴錶錷鍇鍈鍉鍐鍑鍒鍕鍗鍘鍚鍞鍤鍥鍧鍩鍪鍭鍯鍰鍱鍳鍴鍶"],
+["8fe5a1","鍺鍽鍿鎀鎁鎂鎈鎊鎋鎍鎏鎒鎕鎘鎛鎞鎡鎣鎤鎦鎨鎫鎴鎵鎶鎺鎩鏁鏄鏅鏆鏇鏉",4,"鏓鏙鏜鏞鏟鏢鏦鏧鏹鏷鏸鏺鏻鏽鐁鐂鐄鐈鐉鐍鐎鐏鐕鐖鐗鐟鐮鐯鐱鐲鐳鐴鐻鐿鐽鑃鑅鑈鑊鑌鑕鑙鑜鑟鑡鑣鑨鑫鑭鑮鑯鑱鑲钄钃镸镹"],
+["8fe6a1","镾閄閈閌閍閎閝閞閟閡閦閩閫閬閴閶閺閽閿闆闈闉闋闐闑闒闓闙闚闝闞闟闠闤闦阝阞阢阤阥阦阬阱阳阷阸阹阺阼阽陁陒陔陖陗陘陡陮陴陻陼陾陿隁隂隃隄隉隑隖隚隝隟隤隥隦隩隮隯隳隺雊雒嶲雘雚雝雞雟雩雯雱雺霂"],
+["8fe7a1","霃霅霉霚霛霝霡霢霣霨霱霳靁靃靊靎靏靕靗靘靚靛靣靧靪靮靳靶靷靸靻靽靿鞀鞉鞕鞖鞗鞙鞚鞞鞟鞢鞬鞮鞱鞲鞵鞶鞸鞹鞺鞼鞾鞿韁韄韅韇韉韊韌韍韎韐韑韔韗韘韙韝韞韠韛韡韤韯韱韴韷韸韺頇頊頙頍頎頔頖頜頞頠頣頦"],
+["8fe8a1","頫頮頯頰頲頳頵頥頾顄顇顊顑顒顓顖顗顙顚顢顣顥顦顪顬颫颭颮颰颴颷颸颺颻颿飂飅飈飌飡飣飥飦飧飪飳飶餂餇餈餑餕餖餗餚餛餜餟餢餦餧餫餱",4,"餹餺餻餼饀饁饆饇饈饍饎饔饘饙饛饜饞饟饠馛馝馟馦馰馱馲馵"],
+["8fe9a1","馹馺馽馿駃駉駓駔駙駚駜駞駧駪駫駬駰駴駵駹駽駾騂騃騄騋騌騐騑騖騞騠騢騣騤騧騭騮騳騵騶騸驇驁驄驊驋驌驎驑驔驖驝骪骬骮骯骲骴骵骶骹骻骾骿髁髃髆髈髎髐髒髕髖髗髛髜髠髤髥髧髩髬髲髳髵髹髺髽髿",4],
+["8feaa1","鬄鬅鬈鬉鬋鬌鬍鬎鬐鬒鬖鬙鬛鬜鬠鬦鬫鬭鬳鬴鬵鬷鬹鬺鬽魈魋魌魕魖魗魛魞魡魣魥魦魨魪",4,"魳魵魷魸魹魿鮀鮄鮅鮆鮇鮉鮊鮋鮍鮏鮐鮔鮚鮝鮞鮦鮧鮩鮬鮰鮱鮲鮷鮸鮻鮼鮾鮿鯁鯇鯈鯎鯐鯗鯘鯝鯟鯥鯧鯪鯫鯯鯳鯷鯸"],
+["8feba1","鯹鯺鯽鯿鰀鰂鰋鰏鰑鰖鰘鰙鰚鰜鰞鰢鰣鰦",4,"鰱鰵鰶鰷鰽鱁鱃鱄鱅鱉鱊鱎鱏鱐鱓鱔鱖鱘鱛鱝鱞鱟鱣鱩鱪鱜鱫鱨鱮鱰鱲鱵鱷鱻鳦鳲鳷鳹鴋鴂鴑鴗鴘鴜鴝鴞鴯鴰鴲鴳鴴鴺鴼鵅鴽鵂鵃鵇鵊鵓鵔鵟鵣鵢鵥鵩鵪鵫鵰鵶鵷鵻"],
+["8feca1","鵼鵾鶃鶄鶆鶊鶍鶎鶒鶓鶕鶖鶗鶘鶡鶪鶬鶮鶱鶵鶹鶼鶿鷃鷇鷉鷊鷔鷕鷖鷗鷚鷞鷟鷠鷥鷧鷩鷫鷮鷰鷳鷴鷾鸊鸂鸇鸎鸐鸑鸒鸕鸖鸙鸜鸝鹺鹻鹼麀麂麃麄麅麇麎麏麖麘麛麞麤麨麬麮麯麰麳麴麵黆黈黋黕黟黤黧黬黭黮黰黱黲黵"],
+["8feda1","黸黿鼂鼃鼉鼏鼐鼑鼒鼔鼖鼗鼙鼚鼛鼟鼢鼦鼪鼫鼯鼱鼲鼴鼷鼹鼺鼼鼽鼿齁齃",4,"齓齕齖齗齘齚齝齞齨齩齭",4,"齳齵齺齽龏龐龑龒龔龖龗龞龡龢龣龥"]
+]
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/tables/gb18030-ranges.json b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/gb18030-ranges.json
new file mode 100644
index 0000000..85c6934
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/gb18030-ranges.json
@@ -0,0 +1 @@
+{"uChars":[128,165,169,178,184,216,226,235,238,244,248,251,253,258,276,284,300,325,329,334,364,463,465,467,469,471,473,475,477,506,594,610,712,716,730,930,938,962,970,1026,1104,1106,8209,8215,8218,8222,8231,8241,8244,8246,8252,8365,8452,8454,8458,8471,8482,8556,8570,8596,8602,8713,8720,8722,8726,8731,8737,8740,8742,8748,8751,8760,8766,8777,8781,8787,8802,8808,8816,8854,8858,8870,8896,8979,9322,9372,9548,9588,9616,9622,9634,9652,9662,9672,9676,9680,9702,9735,9738,9793,9795,11906,11909,11913,11917,11928,11944,11947,11951,11956,11960,11964,11979,12284,12292,12312,12319,12330,12351,12436,12447,12535,12543,12586,12842,12850,12964,13200,13215,13218,13253,13263,13267,13270,13384,13428,13727,13839,13851,14617,14703,14801,14816,14964,15183,15471,15585,16471,16736,17208,17325,17330,17374,17623,17997,18018,18212,18218,18301,18318,18760,18811,18814,18820,18823,18844,18848,18872,19576,19620,19738,19887,40870,59244,59336,59367,59413,59417,59423,59431,59437,59443,59452,59460,59478,59493,63789,63866,63894,63976,63986,64016,64018,64021,64025,64034,64037,64042,65074,65093,65107,65112,65127,65132,65375,65510,65536],"gbChars":[0,36,38,45,50,81,89,95,96,100,103,104,105,109,126,133,148,172,175,179,208,306,307,308,309,310,311,312,313,341,428,443,544,545,558,741,742,749,750,805,819,820,7922,7924,7925,7927,7934,7943,7944,7945,7950,8062,8148,8149,8152,8164,8174,8236,8240,8262,8264,8374,8380,8381,8384,8388,8390,8392,8393,8394,8396,8401,8406,8416,8419,8424,8437,8439,8445,8482,8485,8496,8521,8603,8936,8946,9046,9050,9063,9066,9076,9092,9100,9108,9111,9113,9131,9162,9164,9218,9219,11329,11331,11334,11336,11346,11361,11363,11366,11370,11372,11375,11389,11682,11686,11687,11692,11694,11714,11716,11723,11725,11730,11736,11982,11989,12102,12336,12348,12350,12384,12393,12395,12397,12510,12553,12851,12962,12973,13738,13823,13919,13933,14080,14298,14585,14698,15583,15847,16318,16434,16438,16481,16729,17102,17122,17315,17320,17402,17418,17859,17909,17911,17915,17916,17936,17939,17961,18664,18703,18814,18962,19043,33469,33470,33471,33484,33485,33490,33497,33501,33505,33513,33520,33536,33550,37845,37921,37948,38029,38038,38064,38065,38066,38069,38075,38076,38078,39108,39109,39113,39114,39115,39116,39265,39394,189000]}
\ No newline at end of file
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/tables/gbk-added.json b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/gbk-added.json
new file mode 100644
index 0000000..b742e36
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/gbk-added.json
@@ -0,0 +1,56 @@
+[
+["a140","",62],
+["a180","",32],
+["a240","",62],
+["a280","",32],
+["a2ab","",5],
+["a2e3","€"],
+["a2ef",""],
+["a2fd",""],
+["a340","",62],
+["a380","",31,"　"],
+["a440","",62],
+["a480","",32],
+["a4f4","",10],
+["a540","",62],
+["a580","",32],
+["a5f7","",7],
+["a640","",62],
+["a680","",32],
+["a6b9","",7],
+["a6d9","",6],
+["a6ec",""],
+["a6f3",""],
+["a6f6","",8],
+["a740","",62],
+["a780","",32],
+["a7c2","",14],
+["a7f2","",12],
+["a896","",10],
+["a8bc","ḿ"],
+["a8bf","ǹ"],
+["a8c1",""],
+["a8ea","",20],
+["a958",""],
+["a95b",""],
+["a95d",""],
+["a989","〾⿰",11],
+["a997","",12],
+["a9f0","",14],
+["aaa1","",93],
+["aba1","",93],
+["aca1","",93],
+["ada1","",93],
+["aea1","",93],
+["afa1","",93],
+["d7fa","",4],
+["f8a1","",93],
+["f9a1","",93],
+["faa1","",93],
+["fba1","",93],
+["fca1","",93],
+["fda1","",93],
+["fe50","⺁⺄㑳㑇⺈⺋㖞㘚㘎⺌⺗㥮㤘㧏㧟㩳㧐㭎㱮㳠⺧⺪䁖䅟⺮䌷⺳⺶⺷䎱䎬⺻䏝䓖䙡䙌"],
+["fe80","䜣䜩䝼䞍⻊䥇䥺䥽䦂䦃䦅䦆䦟䦛䦷䦶䲣䲟䲠䲡䱷䲢䴓",6,"䶮",93],
+["8135f437",""]
+]
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/tables/shiftjis.json b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/shiftjis.json
new file mode 100644
index 0000000..5a3a43c
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/tables/shiftjis.json
@@ -0,0 +1,125 @@
+[
+["0","\u0000",128],
+["a1","｡",62],
+["8140","　、。，．・：；？！゛゜´｀¨＾￣＿ヽヾゝゞ〃仝々〆〇ー―‐／＼～∥｜…‥‘’“”（）〔〕［］｛｝〈",9,"＋－±×"],
+["8180","÷＝≠＜＞≦≧∞∴♂♀°′″℃￥＄￠￡％＃＆＊＠§☆★○●◎◇◆□■△▲▽▼※〒→←↑↓〓"],
+["81b8","∈∋⊆⊇⊂⊃∪∩"],
+["81c8","∧∨￢⇒⇔∀∃"],
+["81da","∠⊥⌒∂∇≡≒≪≫√∽∝∵∫∬"],
+["81f0","ʼn♯♭♪†‡¶"],
+["81fc","◯"],
+["824f","０",9],
+["8260","Ａ",25],
+["8281","ａ",25],
+["829f","ぁ",82],
+["8340","ァ",62],
+["8380","ム",22],
+["839f","Α",16,"Σ",6],
+["83bf","α",16,"σ",6],
+["8440","А",5,"ЁЖ",25],
+["8470","а",5,"ёж",7],
+["8480","о",17],
+["849f","─│┌┐┘└├┬┤┴┼━┃┏┓┛┗┣┳┫┻╋┠┯┨┷┿┝┰┥┸╂"],
+["8740","①",19,"Ⅰ",9],
+["875f","㍉㌔㌢㍍㌘㌧㌃㌶㍑㍗㌍㌦㌣㌫㍊㌻㎜㎝㎞㎎㎏㏄㎡"],
+["877e","㍻"],
+["8780","〝〟№㏍℡㊤",4,"㈱㈲㈹㍾㍽㍼≒≡∫∮∑√⊥∠∟⊿∵∩∪"],
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+["f140","",62],
+["f180","",124],
+["f240","",62],
+["f280","",124],
+["f340","",62],
+["f380","",124],
+["f440","",62],
+["f480","",124],
+["f540","",62],
+["f580","",124],
+["f640","",62],
+["f680","",124],
+["f740","",62],
+["f780","",124],
+["f840","",62],
+["f880","",124],
+["f940",""],
+["fa40","ⅰ",9,"Ⅰ",9,"￢￤＇＂㈱№℡∵纊褜鍈銈蓜俉炻昱棈鋹曻彅丨仡仼伀伃伹佖侒侊侚侔俍偀倢俿倞偆偰偂傔僴僘兊"],
+["fa80","兤冝冾凬刕劜劦勀勛匀匇匤卲厓厲叝﨎咜咊咩哿喆坙坥垬埈埇﨏塚增墲夋奓奛奝奣妤妺孖寀甯寘寬尞岦岺峵崧嵓﨑嵂嵭嶸嶹巐弡弴彧德忞恝悅悊惞惕愠惲愑愷愰憘戓抦揵摠撝擎敎昀昕昻昉昮昞昤晥晗晙晴晳暙暠暲暿曺朎朗杦枻桒柀栁桄棏﨓楨﨔榘槢樰橫橆橳橾櫢櫤毖氿汜沆汯泚洄涇浯"],
+["fb40","涖涬淏淸淲淼渹湜渧渼溿澈澵濵瀅瀇瀨炅炫焏焄煜煆煇凞燁燾犱犾猤猪獷玽珉珖珣珒琇珵琦琪琩琮瑢璉璟甁畯皂皜皞皛皦益睆劯砡硎硤硺礰礼神"],
+["fb80","祥禔福禛竑竧靖竫箞精絈絜綷綠緖繒罇羡羽茁荢荿菇菶葈蒴蕓蕙蕫﨟薰蘒﨡蠇裵訒訷詹誧誾諟諸諶譓譿賰賴贒赶﨣軏﨤逸遧郞都鄕鄧釚釗釞釭釮釤釥鈆鈐鈊鈺鉀鈼鉎鉙鉑鈹鉧銧鉷鉸鋧鋗鋙鋐﨧鋕鋠鋓錥錡鋻﨨錞鋿錝錂鍰鍗鎤鏆鏞鏸鐱鑅鑈閒隆﨩隝隯霳霻靃靍靏靑靕顗顥飯飼餧館馞驎髙"],
+["fc40","髜魵魲鮏鮱鮻鰀鵰鵫鶴鸙黑"]
+]
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/utf16.js b/node_modules/encoding/node_modules/iconv-lite/encodings/utf16.js
new file mode 100644
index 0000000..97d0669
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/utf16.js
@@ -0,0 +1,197 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// Note: UTF16-LE (or UCS2) codec is Node.js native. See encodings/internal.js
+
+// == UTF16-BE codec. ==========================================================
+
+exports.utf16be = Utf16BECodec;
+function Utf16BECodec() {
+}
+
+Utf16BECodec.prototype.encoder = Utf16BEEncoder;
+Utf16BECodec.prototype.decoder = Utf16BEDecoder;
+Utf16BECodec.prototype.bomAware = true;
+
+
+// -- Encoding
+
+function Utf16BEEncoder() {
+}
+
+Utf16BEEncoder.prototype.write = function(str) {
+    var buf = Buffer.from(str, 'ucs2');
+    for (var i = 0; i < buf.length; i += 2) {
+        var tmp = buf[i]; buf[i] = buf[i+1]; buf[i+1] = tmp;
+    }
+    return buf;
+}
+
+Utf16BEEncoder.prototype.end = function() {
+}
+
+
+// -- Decoding
+
+function Utf16BEDecoder() {
+    this.overflowByte = -1;
+}
+
+Utf16BEDecoder.prototype.write = function(buf) {
+    if (buf.length == 0)
+        return '';
+
+    var buf2 = Buffer.alloc(buf.length + 1),
+        i = 0, j = 0;
+
+    if (this.overflowByte !== -1) {
+        buf2[0] = buf[0];
+        buf2[1] = this.overflowByte;
+        i = 1; j = 2;
+    }
+
+    for (; i < buf.length-1; i += 2, j+= 2) {
+        buf2[j] = buf[i+1];
+        buf2[j+1] = buf[i];
+    }
+
+    this.overflowByte = (i == buf.length-1) ? buf[buf.length-1] : -1;
+
+    return buf2.slice(0, j).toString('ucs2');
+}
+
+Utf16BEDecoder.prototype.end = function() {
+    this.overflowByte = -1;
+}
+
+
+// == UTF-16 codec =============================================================
+// Decoder chooses automatically from UTF-16LE and UTF-16BE using BOM and space-based heuristic.
+// Defaults to UTF-16LE, as it's prevalent and default in Node.
+// http://en.wikipedia.org/wiki/UTF-16 and http://encoding.spec.whatwg.org/#utf-16le
+// Decoder default can be changed: iconv.decode(buf, 'utf16', {defaultEncoding: 'utf-16be'});
+
+// Encoder uses UTF-16LE and prepends BOM (which can be overridden with addBOM: false).
+
+exports.utf16 = Utf16Codec;
+function Utf16Codec(codecOptions, iconv) {
+    this.iconv = iconv;
+}
+
+Utf16Codec.prototype.encoder = Utf16Encoder;
+Utf16Codec.prototype.decoder = Utf16Decoder;
+
+
+// -- Encoding (pass-through)
+
+function Utf16Encoder(options, codec) {
+    options = options || {};
+    if (options.addBOM === undefined)
+        options.addBOM = true;
+    this.encoder = codec.iconv.getEncoder('utf-16le', options);
+}
+
+Utf16Encoder.prototype.write = function(str) {
+    return this.encoder.write(str);
+}
+
+Utf16Encoder.prototype.end = function() {
+    return this.encoder.end();
+}
+
+
+// -- Decoding
+
+function Utf16Decoder(options, codec) {
+    this.decoder = null;
+    this.initialBufs = [];
+    this.initialBufsLen = 0;
+
+    this.options = options || {};
+    this.iconv = codec.iconv;
+}
+
+Utf16Decoder.prototype.write = function(buf) {
+    if (!this.decoder) {
+        // Codec is not chosen yet. Accumulate initial bytes.
+        this.initialBufs.push(buf);
+        this.initialBufsLen += buf.length;
+        
+        if (this.initialBufsLen < 16) // We need more bytes to use space heuristic (see below)
+            return '';
+
+        // We have enough bytes -> detect endianness.
+        var encoding = detectEncoding(this.initialBufs, this.options.defaultEncoding);
+        this.decoder = this.iconv.getDecoder(encoding, this.options);
+
+        var resStr = '';
+        for (var i = 0; i < this.initialBufs.length; i++)
+            resStr += this.decoder.write(this.initialBufs[i]);
+
+        this.initialBufs.length = this.initialBufsLen = 0;
+        return resStr;
+    }
+
+    return this.decoder.write(buf);
+}
+
+Utf16Decoder.prototype.end = function() {
+    if (!this.decoder) {
+        var encoding = detectEncoding(this.initialBufs, this.options.defaultEncoding);
+        this.decoder = this.iconv.getDecoder(encoding, this.options);
+
+        var resStr = '';
+        for (var i = 0; i < this.initialBufs.length; i++)
+            resStr += this.decoder.write(this.initialBufs[i]);
+
+        var trail = this.decoder.end();
+        if (trail)
+            resStr += trail;
+
+        this.initialBufs.length = this.initialBufsLen = 0;
+        return resStr;
+    }
+    return this.decoder.end();
+}
+
+function detectEncoding(bufs, defaultEncoding) {
+    var b = [];
+    var charsProcessed = 0;
+    var asciiCharsLE = 0, asciiCharsBE = 0; // Number of ASCII chars when decoded as LE or BE.
+
+    outer_loop:
+    for (var i = 0; i < bufs.length; i++) {
+        var buf = bufs[i];
+        for (var j = 0; j < buf.length; j++) {
+            b.push(buf[j]);
+            if (b.length === 2) {
+                if (charsProcessed === 0) {
+                    // Check BOM first.
+                    if (b[0] === 0xFF && b[1] === 0xFE) return 'utf-16le';
+                    if (b[0] === 0xFE && b[1] === 0xFF) return 'utf-16be';
+                }
+
+                if (b[0] === 0 && b[1] !== 0) asciiCharsBE++;
+                if (b[0] !== 0 && b[1] === 0) asciiCharsLE++;
+
+                b.length = 0;
+                charsProcessed++;
+
+                if (charsProcessed >= 100) {
+                    break outer_loop;
+                }
+            }
+        }
+    }
+
+    // Make decisions.
+    // Most of the time, the content has ASCII chars (U+00**), but the opposite (U+**00) is uncommon.
+    // So, we count ASCII as if it was LE or BE, and decide from that.
+    if (asciiCharsBE > asciiCharsLE) return 'utf-16be';
+    if (asciiCharsBE < asciiCharsLE) return 'utf-16le';
+
+    // Couldn't decide (likely all zeros or not enough data).
+    return defaultEncoding || 'utf-16le';
+}
+
+
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/utf32.js b/node_modules/encoding/node_modules/iconv-lite/encodings/utf32.js
new file mode 100644
index 0000000..2fa900a
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/utf32.js
@@ -0,0 +1,319 @@
+'use strict';
+
+var Buffer = require('safer-buffer').Buffer;
+
+// == UTF32-LE/BE codec. ==========================================================
+
+exports._utf32 = Utf32Codec;
+
+function Utf32Codec(codecOptions, iconv) {
+    this.iconv = iconv;
+    this.bomAware = true;
+    this.isLE = codecOptions.isLE;
+}
+
+exports.utf32le = { type: '_utf32', isLE: true };
+exports.utf32be = { type: '_utf32', isLE: false };
+
+// Aliases
+exports.ucs4le = 'utf32le';
+exports.ucs4be = 'utf32be';
+
+Utf32Codec.prototype.encoder = Utf32Encoder;
+Utf32Codec.prototype.decoder = Utf32Decoder;
+
+// -- Encoding
+
+function Utf32Encoder(options, codec) {
+    this.isLE = codec.isLE;
+    this.highSurrogate = 0;
+}
+
+Utf32Encoder.prototype.write = function(str) {
+    var src = Buffer.from(str, 'ucs2');
+    var dst = Buffer.alloc(src.length * 2);
+    var write32 = this.isLE ? dst.writeUInt32LE : dst.writeUInt32BE;
+    var offset = 0;
+
+    for (var i = 0; i < src.length; i += 2) {
+        var code = src.readUInt16LE(i);
+        var isHighSurrogate = (0xD800 <= code && code < 0xDC00);
+        var isLowSurrogate = (0xDC00 <= code && code < 0xE000);
+
+        if (this.highSurrogate) {
+            if (isHighSurrogate || !isLowSurrogate) {
+                // There shouldn't be two high surrogates in a row, nor a high surrogate which isn't followed by a low
+                // surrogate. If this happens, keep the pending high surrogate as a stand-alone semi-invalid character
+                // (technically wrong, but expected by some applications, like Windows file names).
+                write32.call(dst, this.highSurrogate, offset);
+                offset += 4;
+            }
+            else {
+                // Create 32-bit value from high and low surrogates;
+                var codepoint = (((this.highSurrogate - 0xD800) << 10) | (code - 0xDC00)) + 0x10000;
+
+                write32.call(dst, codepoint, offset);
+                offset += 4;
+                this.highSurrogate = 0;
+
+                continue;
+            }
+        }
+
+        if (isHighSurrogate)
+            this.highSurrogate = code;
+        else {
+            // Even if the current character is a low surrogate, with no previous high surrogate, we'll
+            // encode it as a semi-invalid stand-alone character for the same reasons expressed above for
+            // unpaired high surrogates.
+            write32.call(dst, code, offset);
+            offset += 4;
+            this.highSurrogate = 0;
+        }
+    }
+
+    if (offset < dst.length)
+        dst = dst.slice(0, offset);
+
+    return dst;
+};
+
+Utf32Encoder.prototype.end = function() {
+    // Treat any leftover high surrogate as a semi-valid independent character.
+    if (!this.highSurrogate)
+        return;
+
+    var buf = Buffer.alloc(4);
+
+    if (this.isLE)
+        buf.writeUInt32LE(this.highSurrogate, 0);
+    else
+        buf.writeUInt32BE(this.highSurrogate, 0);
+
+    this.highSurrogate = 0;
+
+    return buf;
+};
+
+// -- Decoding
+
+function Utf32Decoder(options, codec) {
+    this.isLE = codec.isLE;
+    this.badChar = codec.iconv.defaultCharUnicode.charCodeAt(0);
+    this.overflow = [];
+}
+
+Utf32Decoder.prototype.write = function(src) {
+    if (src.length === 0)
+        return '';
+
+    var i = 0;
+    var codepoint = 0;
+    var dst = Buffer.alloc(src.length + 4);
+    var offset = 0;
+    var isLE = this.isLE;
+    var overflow = this.overflow;
+    var badChar = this.badChar;
+
+    if (overflow.length > 0) {
+        for (; i < src.length && overflow.length < 4; i++)
+            overflow.push(src[i]);
+        
+        if (overflow.length === 4) {
+            // NOTE: codepoint is a signed int32 and can be negative.
+            // NOTE: We copied this block from below to help V8 optimize it (it works with array, not buffer).
+            if (isLE) {
+                codepoint = overflow[i] | (overflow[i+1] << 8) | (overflow[i+2] << 16) | (overflow[i+3] << 24);
+            } else {
+                codepoint = overflow[i+3] | (overflow[i+2] << 8) | (overflow[i+1] << 16) | (overflow[i] << 24);
+            }
+            overflow.length = 0;
+
+            offset = _writeCodepoint(dst, offset, codepoint, badChar);
+        }
+    }
+
+    // Main loop. Should be as optimized as possible.
+    for (; i < src.length - 3; i += 4) {
+        // NOTE: codepoint is a signed int32 and can be negative.
+        if (isLE) {
+            codepoint = src[i] | (src[i+1] << 8) | (src[i+2] << 16) | (src[i+3] << 24);
+        } else {
+            codepoint = src[i+3] | (src[i+2] << 8) | (src[i+1] << 16) | (src[i] << 24);
+        }
+        offset = _writeCodepoint(dst, offset, codepoint, badChar);
+    }
+
+    // Keep overflowing bytes.
+    for (; i < src.length; i++) {
+        overflow.push(src[i]);
+    }
+
+    return dst.slice(0, offset).toString('ucs2');
+};
+
+function _writeCodepoint(dst, offset, codepoint, badChar) {
+    // NOTE: codepoint is signed int32 and can be negative. We keep it that way to help V8 with optimizations.
+    if (codepoint < 0 || codepoint > 0x10FFFF) {
+        // Not a valid Unicode codepoint
+        codepoint = badChar;
+    } 
+
+    // Ephemeral Planes: Write high surrogate.
+    if (codepoint >= 0x10000) {
+        codepoint -= 0x10000;
+
+        var high = 0xD800 | (codepoint >> 10);
+        dst[offset++] = high & 0xff;
+        dst[offset++] = high >> 8;
+
+        // Low surrogate is written below.
+        var codepoint = 0xDC00 | (codepoint & 0x3FF);
+    }
+
+    // Write BMP char or low surrogate.
+    dst[offset++] = codepoint & 0xff;
+    dst[offset++] = codepoint >> 8;
+
+    return offset;
+};
+
+Utf32Decoder.prototype.end = function() {
+    this.overflow.length = 0;
+};
+
+// == UTF-32 Auto codec =============================================================
+// Decoder chooses automatically from UTF-32LE and UTF-32BE using BOM and space-based heuristic.
+// Defaults to UTF-32LE. http://en.wikipedia.org/wiki/UTF-32
+// Encoder/decoder default can be changed: iconv.decode(buf, 'utf32', {defaultEncoding: 'utf-32be'});
+
+// Encoder prepends BOM (which can be overridden with (addBOM: false}).
+
+exports.utf32 = Utf32AutoCodec;
+exports.ucs4 = 'utf32';
+
+function Utf32AutoCodec(options, iconv) {
+    this.iconv = iconv;
+}
+
+Utf32AutoCodec.prototype.encoder = Utf32AutoEncoder;
+Utf32AutoCodec.prototype.decoder = Utf32AutoDecoder;
+
+// -- Encoding
+
+function Utf32AutoEncoder(options, codec) {
+    options = options || {};
+
+    if (options.addBOM === undefined)
+        options.addBOM = true;
+
+    this.encoder = codec.iconv.getEncoder(options.defaultEncoding || 'utf-32le', options);
+}
+
+Utf32AutoEncoder.prototype.write = function(str) {
+    return this.encoder.write(str);
+};
+
+Utf32AutoEncoder.prototype.end = function() {
+    return this.encoder.end();
+};
+
+// -- Decoding
+
+function Utf32AutoDecoder(options, codec) {
+    this.decoder = null;
+    this.initialBufs = [];
+    this.initialBufsLen = 0;
+    this.options = options || {};
+    this.iconv = codec.iconv;
+}
+
+Utf32AutoDecoder.prototype.write = function(buf) {
+    if (!this.decoder) { 
+        // Codec is not chosen yet. Accumulate initial bytes.
+        this.initialBufs.push(buf);
+        this.initialBufsLen += buf.length;
+
+        if (this.initialBufsLen < 32) // We need more bytes to use space heuristic (see below)
+            return '';
+
+        // We have enough bytes -> detect endianness.
+        var encoding = detectEncoding(this.initialBufs, this.options.defaultEncoding);
+        this.decoder = this.iconv.getDecoder(encoding, this.options);
+
+        var resStr = '';
+        for (var i = 0; i < this.initialBufs.length; i++)
+            resStr += this.decoder.write(this.initialBufs[i]);
+
+        this.initialBufs.length = this.initialBufsLen = 0;
+        return resStr;
+    }
+
+    return this.decoder.write(buf);
+};
+
+Utf32AutoDecoder.prototype.end = function() {
+    if (!this.decoder) {
+        var encoding = detectEncoding(this.initialBufs, this.options.defaultEncoding);
+        this.decoder = this.iconv.getDecoder(encoding, this.options);
+
+        var resStr = '';
+        for (var i = 0; i < this.initialBufs.length; i++)
+            resStr += this.decoder.write(this.initialBufs[i]);
+
+        var trail = this.decoder.end();
+        if (trail)
+            resStr += trail;
+
+        this.initialBufs.length = this.initialBufsLen = 0;
+        return resStr;
+    }
+
+    return this.decoder.end();
+};
+
+function detectEncoding(bufs, defaultEncoding) {
+    var b = [];
+    var charsProcessed = 0;
+    var invalidLE = 0, invalidBE = 0;   // Number of invalid chars when decoded as LE or BE.
+    var bmpCharsLE = 0, bmpCharsBE = 0; // Number of BMP chars when decoded as LE or BE.
+
+    outer_loop:
+    for (var i = 0; i < bufs.length; i++) {
+        var buf = bufs[i];
+        for (var j = 0; j < buf.length; j++) {
+            b.push(buf[j]);
+            if (b.length === 4) {
+                if (charsProcessed === 0) {
+                    // Check BOM first.
+                    if (b[0] === 0xFF && b[1] === 0xFE && b[2] === 0 && b[3] === 0) {
+                        return 'utf-32le';
+                    }
+                    if (b[0] === 0 && b[1] === 0 && b[2] === 0xFE && b[3] === 0xFF) {
+                        return 'utf-32be';
+                    }
+                }
+
+                if (b[0] !== 0 || b[1] > 0x10) invalidBE++;
+                if (b[3] !== 0 || b[2] > 0x10) invalidLE++;
+
+                if (b[0] === 0 && b[1] === 0 && (b[2] !== 0 || b[3] !== 0)) bmpCharsBE++;
+                if ((b[0] !== 0 || b[1] !== 0) && b[2] === 0 && b[3] === 0) bmpCharsLE++;
+
+                b.length = 0;
+                charsProcessed++;
+
+                if (charsProcessed >= 100) {
+                    break outer_loop;
+                }
+            }
+        }
+    }
+
+    // Make decisions.
+    if (bmpCharsBE - invalidBE > bmpCharsLE - invalidLE)  return 'utf-32be';
+    if (bmpCharsBE - invalidBE < bmpCharsLE - invalidLE)  return 'utf-32le';
+
+    // Couldn't decide (likely all zeros or not enough data).
+    return defaultEncoding || 'utf-32le';
+}
diff --git a/node_modules/encoding/node_modules/iconv-lite/encodings/utf7.js b/node_modules/encoding/node_modules/iconv-lite/encodings/utf7.js
new file mode 100644
index 0000000..eacae34
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/encodings/utf7.js
@@ -0,0 +1,290 @@
+"use strict";
+var Buffer = require("safer-buffer").Buffer;
+
+// UTF-7 codec, according to https://tools.ietf.org/html/rfc2152
+// See also below a UTF-7-IMAP codec, according to http://tools.ietf.org/html/rfc3501#section-5.1.3
+
+exports.utf7 = Utf7Codec;
+exports.unicode11utf7 = 'utf7'; // Alias UNICODE-1-1-UTF-7
+function Utf7Codec(codecOptions, iconv) {
+    this.iconv = iconv;
+};
+
+Utf7Codec.prototype.encoder = Utf7Encoder;
+Utf7Codec.prototype.decoder = Utf7Decoder;
+Utf7Codec.prototype.bomAware = true;
+
+
+// -- Encoding
+
+var nonDirectChars = /[^A-Za-z0-9'\(\),-\.\/:\? \n\r\t]+/g;
+
+function Utf7Encoder(options, codec) {
+    this.iconv = codec.iconv;
+}
+
+Utf7Encoder.prototype.write = function(str) {
+    // Naive implementation.
+    // Non-direct chars are encoded as "+<base64>-"; single "+" char is encoded as "+-".
+    return Buffer.from(str.replace(nonDirectChars, function(chunk) {
+        return "+" + (chunk === '+' ? '' : 
+            this.iconv.encode(chunk, 'utf16-be').toString('base64').replace(/=+$/, '')) 
+            + "-";
+    }.bind(this)));
+}
+
+Utf7Encoder.prototype.end = function() {
+}
+
+
+// -- Decoding
+
+function Utf7Decoder(options, codec) {
+    this.iconv = codec.iconv;
+    this.inBase64 = false;
+    this.base64Accum = '';
+}
+
+var base64Regex = /[A-Za-z0-9\/+]/;
+var base64Chars = [];
+for (var i = 0; i < 256; i++)
+    base64Chars[i] = base64Regex.test(String.fromCharCode(i));
+
+var plusChar = '+'.charCodeAt(0), 
+    minusChar = '-'.charCodeAt(0),
+    andChar = '&'.charCodeAt(0);
+
+Utf7Decoder.prototype.write = function(buf) {
+    var res = "", lastI = 0,
+        inBase64 = this.inBase64,
+        base64Accum = this.base64Accum;
+
+    // The decoder is more involved as we must handle chunks in stream.
+
+    for (var i = 0; i < buf.length; i++) {
+        if (!inBase64) { // We're in direct mode.
+            // Write direct chars until '+'
+            if (buf[i] == plusChar) {
+                res += this.iconv.decode(buf.slice(lastI, i), "ascii"); // Write direct chars.
+                lastI = i+1;
+                inBase64 = true;
+            }
+        } else { // We decode base64.
+            if (!base64Chars[buf[i]]) { // Base64 ended.
+                if (i == lastI && buf[i] == minusChar) {// "+-" -> "+"
+                    res += "+";
+                } else {
+                    var b64str = base64Accum + this.iconv.decode(buf.slice(lastI, i), "ascii");
+                    res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
+                }
+
+                if (buf[i] != minusChar) // Minus is absorbed after base64.
+                    i--;
+
+                lastI = i+1;
+                inBase64 = false;
+                base64Accum = '';
+            }
+        }
+    }
+
+    if (!inBase64) {
+        res += this.iconv.decode(buf.slice(lastI), "ascii"); // Write direct chars.
+    } else {
+        var b64str = base64Accum + this.iconv.decode(buf.slice(lastI), "ascii");
+
+        var canBeDecoded = b64str.length - (b64str.length % 8); // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
+        base64Accum = b64str.slice(canBeDecoded); // The rest will be decoded in future.
+        b64str = b64str.slice(0, canBeDecoded);
+
+        res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
+    }
+
+    this.inBase64 = inBase64;
+    this.base64Accum = base64Accum;
+
+    return res;
+}
+
+Utf7Decoder.prototype.end = function() {
+    var res = "";
+    if (this.inBase64 && this.base64Accum.length > 0)
+        res = this.iconv.decode(Buffer.from(this.base64Accum, 'base64'), "utf16-be");
+
+    this.inBase64 = false;
+    this.base64Accum = '';
+    return res;
+}
+
+
+// UTF-7-IMAP codec.
+// RFC3501 Sec. 5.1.3 Modified UTF-7 (http://tools.ietf.org/html/rfc3501#section-5.1.3)
+// Differences:
+//  * Base64 part is started by "&" instead of "+"
+//  * Direct characters are 0x20-0x7E, except "&" (0x26)
+//  * In Base64, "," is used instead of "/"
+//  * Base64 must not be used to represent direct characters.
+//  * No implicit shift back from Base64 (should always end with '-')
+//  * String must end in non-shifted position.
+//  * "-&" while in base64 is not allowed.
+
+
+exports.utf7imap = Utf7IMAPCodec;
+function Utf7IMAPCodec(codecOptions, iconv) {
+    this.iconv = iconv;
+};
+
+Utf7IMAPCodec.prototype.encoder = Utf7IMAPEncoder;
+Utf7IMAPCodec.prototype.decoder = Utf7IMAPDecoder;
+Utf7IMAPCodec.prototype.bomAware = true;
+
+
+// -- Encoding
+
+function Utf7IMAPEncoder(options, codec) {
+    this.iconv = codec.iconv;
+    this.inBase64 = false;
+    this.base64Accum = Buffer.alloc(6);
+    this.base64AccumIdx = 0;
+}
+
+Utf7IMAPEncoder.prototype.write = function(str) {
+    var inBase64 = this.inBase64,
+        base64Accum = this.base64Accum,
+        base64AccumIdx = this.base64AccumIdx,
+        buf = Buffer.alloc(str.length*5 + 10), bufIdx = 0;
+
+    for (var i = 0; i < str.length; i++) {
+        var uChar = str.charCodeAt(i);
+        if (0x20 <= uChar && uChar <= 0x7E) { // Direct character or '&'.
+            if (inBase64) {
+                if (base64AccumIdx > 0) {
+                    bufIdx += buf.write(base64Accum.slice(0, base64AccumIdx).toString('base64').replace(/\//g, ',').replace(/=+$/, ''), bufIdx);
+                    base64AccumIdx = 0;
+                }
+
+                buf[bufIdx++] = minusChar; // Write '-', then go to direct mode.
+                inBase64 = false;
+            }
+
+            if (!inBase64) {
+                buf[bufIdx++] = uChar; // Write direct character
+
+                if (uChar === andChar)  // Ampersand -> '&-'
+                    buf[bufIdx++] = minusChar;
+            }
+
+        } else { // Non-direct character
+            if (!inBase64) {
+                buf[bufIdx++] = andChar; // Write '&', then go to base64 mode.
+                inBase64 = true;
+            }
+            if (inBase64) {
+                base64Accum[base64AccumIdx++] = uChar >> 8;
+                base64Accum[base64AccumIdx++] = uChar & 0xFF;
+
+                if (base64AccumIdx == base64Accum.length) {
+                    bufIdx += buf.write(base64Accum.toString('base64').replace(/\//g, ','), bufIdx);
+                    base64AccumIdx = 0;
+                }
+            }
+        }
+    }
+
+    this.inBase64 = inBase64;
+    this.base64AccumIdx = base64AccumIdx;
+
+    return buf.slice(0, bufIdx);
+}
+
+Utf7IMAPEncoder.prototype.end = function() {
+    var buf = Buffer.alloc(10), bufIdx = 0;
+    if (this.inBase64) {
+        if (this.base64AccumIdx > 0) {
+            bufIdx += buf.write(this.base64Accum.slice(0, this.base64AccumIdx).toString('base64').replace(/\//g, ',').replace(/=+$/, ''), bufIdx);
+            this.base64AccumIdx = 0;
+        }
+
+        buf[bufIdx++] = minusChar; // Write '-', then go to direct mode.
+        this.inBase64 = false;
+    }
+
+    return buf.slice(0, bufIdx);
+}
+
+
+// -- Decoding
+
+function Utf7IMAPDecoder(options, codec) {
+    this.iconv = codec.iconv;
+    this.inBase64 = false;
+    this.base64Accum = '';
+}
+
+var base64IMAPChars = base64Chars.slice();
+base64IMAPChars[','.charCodeAt(0)] = true;
+
+Utf7IMAPDecoder.prototype.write = function(buf) {
+    var res = "", lastI = 0,
+        inBase64 = this.inBase64,
+        base64Accum = this.base64Accum;
+
+    // The decoder is more involved as we must handle chunks in stream.
+    // It is forgiving, closer to standard UTF-7 (for example, '-' is optional at the end).
+
+    for (var i = 0; i < buf.length; i++) {
+        if (!inBase64) { // We're in direct mode.
+            // Write direct chars until '&'
+            if (buf[i] == andChar) {
+                res += this.iconv.decode(buf.slice(lastI, i), "ascii"); // Write direct chars.
+                lastI = i+1;
+                inBase64 = true;
+            }
+        } else { // We decode base64.
+            if (!base64IMAPChars[buf[i]]) { // Base64 ended.
+                if (i == lastI && buf[i] == minusChar) { // "&-" -> "&"
+                    res += "&";
+                } else {
+                    var b64str = base64Accum + this.iconv.decode(buf.slice(lastI, i), "ascii").replace(/,/g, '/');
+                    res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
+                }
+
+                if (buf[i] != minusChar) // Minus may be absorbed after base64.
+                    i--;
+
+                lastI = i+1;
+                inBase64 = false;
+                base64Accum = '';
+            }
+        }
+    }
+
+    if (!inBase64) {
+        res += this.iconv.decode(buf.slice(lastI), "ascii"); // Write direct chars.
+    } else {
+        var b64str = base64Accum + this.iconv.decode(buf.slice(lastI), "ascii").replace(/,/g, '/');
+
+        var canBeDecoded = b64str.length - (b64str.length % 8); // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
+        base64Accum = b64str.slice(canBeDecoded); // The rest will be decoded in future.
+        b64str = b64str.slice(0, canBeDecoded);
+
+        res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
+    }
+
+    this.inBase64 = inBase64;
+    this.base64Accum = base64Accum;
+
+    return res;
+}
+
+Utf7IMAPDecoder.prototype.end = function() {
+    var res = "";
+    if (this.inBase64 && this.base64Accum.length > 0)
+        res = this.iconv.decode(Buffer.from(this.base64Accum, 'base64'), "utf16-be");
+
+    this.inBase64 = false;
+    this.base64Accum = '';
+    return res;
+}
+
+
diff --git a/node_modules/encoding/node_modules/iconv-lite/lib/bom-handling.js b/node_modules/encoding/node_modules/iconv-lite/lib/bom-handling.js
new file mode 100644
index 0000000..1050872
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/lib/bom-handling.js
@@ -0,0 +1,52 @@
+"use strict";
+
+var BOMChar = '\uFEFF';
+
+exports.PrependBOM = PrependBOMWrapper
+function PrependBOMWrapper(encoder, options) {
+    this.encoder = encoder;
+    this.addBOM = true;
+}
+
+PrependBOMWrapper.prototype.write = function(str) {
+    if (this.addBOM) {
+        str = BOMChar + str;
+        this.addBOM = false;
+    }
+
+    return this.encoder.write(str);
+}
+
+PrependBOMWrapper.prototype.end = function() {
+    return this.encoder.end();
+}
+
+
+//------------------------------------------------------------------------------
+
+exports.StripBOM = StripBOMWrapper;
+function StripBOMWrapper(decoder, options) {
+    this.decoder = decoder;
+    this.pass = false;
+    this.options = options || {};
+}
+
+StripBOMWrapper.prototype.write = function(buf) {
+    var res = this.decoder.write(buf);
+    if (this.pass || !res)
+        return res;
+
+    if (res[0] === BOMChar) {
+        res = res.slice(1);
+        if (typeof this.options.stripBOM === 'function')
+            this.options.stripBOM();
+    }
+
+    this.pass = true;
+    return res;
+}
+
+StripBOMWrapper.prototype.end = function() {
+    return this.decoder.end();
+}
+
diff --git a/node_modules/encoding/node_modules/iconv-lite/lib/index.d.ts b/node_modules/encoding/node_modules/iconv-lite/lib/index.d.ts
new file mode 100644
index 0000000..99f200f
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/lib/index.d.ts
@@ -0,0 +1,41 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License.
+ *  REQUIREMENT: This definition is dependent on the @types/node definition.
+ *  Install with `npm install @types/node --save-dev`
+ *--------------------------------------------------------------------------------------------*/
+
+declare module 'iconv-lite' {
+	// Basic API
+	export function decode(buffer: Buffer, encoding: string, options?: Options): string;
+
+	export function encode(content: string, encoding: string, options?: Options): Buffer;
+
+	export function encodingExists(encoding: string): boolean;
+
+	// Stream API
+	export function decodeStream(encoding: string, options?: Options): NodeJS.ReadWriteStream;
+
+	export function encodeStream(encoding: string, options?: Options): NodeJS.ReadWriteStream;
+
+	// Low-level stream APIs
+	export function getEncoder(encoding: string, options?: Options): EncoderStream;
+
+	export function getDecoder(encoding: string, options?: Options): DecoderStream;
+}
+
+export interface Options {
+    stripBOM?: boolean;
+    addBOM?: boolean;
+    defaultEncoding?: string;
+}
+
+export interface EncoderStream {
+	write(str: string): Buffer;
+	end(): Buffer | undefined;
+}
+
+export interface DecoderStream {
+	write(buf: Buffer): string;
+	end(): string | undefined;
+}
diff --git a/node_modules/encoding/node_modules/iconv-lite/lib/index.js b/node_modules/encoding/node_modules/iconv-lite/lib/index.js
new file mode 100644
index 0000000..657701c
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/lib/index.js
@@ -0,0 +1,180 @@
+"use strict";
+
+var Buffer = require("safer-buffer").Buffer;
+
+var bomHandling = require("./bom-handling"),
+    iconv = module.exports;
+
+// All codecs and aliases are kept here, keyed by encoding name/alias.
+// They are lazy loaded in `iconv.getCodec` from `encodings/index.js`.
+iconv.encodings = null;
+
+// Characters emitted in case of error.
+iconv.defaultCharUnicode = '�';
+iconv.defaultCharSingleByte = '?';
+
+// Public API.
+iconv.encode = function encode(str, encoding, options) {
+    str = "" + (str || ""); // Ensure string.
+
+    var encoder = iconv.getEncoder(encoding, options);
+
+    var res = encoder.write(str);
+    var trail = encoder.end();
+    
+    return (trail && trail.length > 0) ? Buffer.concat([res, trail]) : res;
+}
+
+iconv.decode = function decode(buf, encoding, options) {
+    if (typeof buf === 'string') {
+        if (!iconv.skipDecodeWarning) {
+            console.error('Iconv-lite warning: decode()-ing strings is deprecated. Refer to https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding');
+            iconv.skipDecodeWarning = true;
+        }
+
+        buf = Buffer.from("" + (buf || ""), "binary"); // Ensure buffer.
+    }
+
+    var decoder = iconv.getDecoder(encoding, options);
+
+    var res = decoder.write(buf);
+    var trail = decoder.end();
+
+    return trail ? (res + trail) : res;
+}
+
+iconv.encodingExists = function encodingExists(enc) {
+    try {
+        iconv.getCodec(enc);
+        return true;
+    } catch (e) {
+        return false;
+    }
+}
+
+// Legacy aliases to convert functions
+iconv.toEncoding = iconv.encode;
+iconv.fromEncoding = iconv.decode;
+
+// Search for a codec in iconv.encodings. Cache codec data in iconv._codecDataCache.
+iconv._codecDataCache = {};
+iconv.getCodec = function getCodec(encoding) {
+    if (!iconv.encodings)
+        iconv.encodings = require("../encodings"); // Lazy load all encoding definitions.
+    
+    // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.
+    var enc = iconv._canonicalizeEncoding(encoding);
+
+    // Traverse iconv.encodings to find actual codec.
+    var codecOptions = {};
+    while (true) {
+        var codec = iconv._codecDataCache[enc];
+        if (codec)
+            return codec;
+
+        var codecDef = iconv.encodings[enc];
+
+        switch (typeof codecDef) {
+            case "string": // Direct alias to other encoding.
+                enc = codecDef;
+                break;
+
+            case "object": // Alias with options. Can be layered.
+                for (var key in codecDef)
+                    codecOptions[key] = codecDef[key];
+
+                if (!codecOptions.encodingName)
+                    codecOptions.encodingName = enc;
+                
+                enc = codecDef.type;
+                break;
+
+            case "function": // Codec itself.
+                if (!codecOptions.encodingName)
+                    codecOptions.encodingName = enc;
+
+                // The codec function must load all tables and return object with .encoder and .decoder methods.
+                // It'll be called only once (for each different options object).
+                codec = new codecDef(codecOptions, iconv);
+
+                iconv._codecDataCache[codecOptions.encodingName] = codec; // Save it to be reused later.
+                return codec;
+
+            default:
+                throw new Error("Encoding not recognized: '" + encoding + "' (searched as: '"+enc+"')");
+        }
+    }
+}
+
+iconv._canonicalizeEncoding = function(encoding) {
+    // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.
+    return (''+encoding).toLowerCase().replace(/:\d{4}$|[^0-9a-z]/g, "");
+}
+
+iconv.getEncoder = function getEncoder(encoding, options) {
+    var codec = iconv.getCodec(encoding),
+        encoder = new codec.encoder(options, codec);
+
+    if (codec.bomAware && options && options.addBOM)
+        encoder = new bomHandling.PrependBOM(encoder, options);
+
+    return encoder;
+}
+
+iconv.getDecoder = function getDecoder(encoding, options) {
+    var codec = iconv.getCodec(encoding),
+        decoder = new codec.decoder(options, codec);
+
+    if (codec.bomAware && !(options && options.stripBOM === false))
+        decoder = new bomHandling.StripBOM(decoder, options);
+
+    return decoder;
+}
+
+// Streaming API
+// NOTE: Streaming API naturally depends on 'stream' module from Node.js. Unfortunately in browser environments this module can add
+// up to 100Kb to the output bundle. To avoid unnecessary code bloat, we don't enable Streaming API in browser by default.
+// If you would like to enable it explicitly, please add the following code to your app:
+// > iconv.enableStreamingAPI(require('stream'));
+iconv.enableStreamingAPI = function enableStreamingAPI(stream_module) {
+    if (iconv.supportsStreams)
+        return;
+
+    // Dependency-inject stream module to create IconvLite stream classes.
+    var streams = require("./streams")(stream_module);
+
+    // Not public API yet, but expose the stream classes.
+    iconv.IconvLiteEncoderStream = streams.IconvLiteEncoderStream;
+    iconv.IconvLiteDecoderStream = streams.IconvLiteDecoderStream;
+
+    // Streaming API.
+    iconv.encodeStream = function encodeStream(encoding, options) {
+        return new iconv.IconvLiteEncoderStream(iconv.getEncoder(encoding, options), options);
+    }
+
+    iconv.decodeStream = function decodeStream(encoding, options) {
+        return new iconv.IconvLiteDecoderStream(iconv.getDecoder(encoding, options), options);
+    }
+
+    iconv.supportsStreams = true;
+}
+
+// Enable Streaming API automatically if 'stream' module is available and non-empty (the majority of environments).
+var stream_module;
+try {
+    stream_module = require("stream");
+} catch (e) {}
+
+if (stream_module && stream_module.Transform) {
+    iconv.enableStreamingAPI(stream_module);
+
+} else {
+    // In rare cases where 'stream' module is not available by default, throw a helpful exception.
+    iconv.encodeStream = iconv.decodeStream = function() {
+        throw new Error("iconv-lite Streaming API is not enabled. Use iconv.enableStreamingAPI(require('stream')); to enable it.");
+    };
+}
+
+if ("Ā" != "\u0100") {
+    console.error("iconv-lite warning: js files use non-utf8 encoding. See https://github.com/ashtuchkin/iconv-lite/wiki/Javascript-source-file-encodings for more info.");
+}
diff --git a/node_modules/encoding/node_modules/iconv-lite/lib/streams.js b/node_modules/encoding/node_modules/iconv-lite/lib/streams.js
new file mode 100644
index 0000000..a150648
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/lib/streams.js
@@ -0,0 +1,109 @@
+"use strict";
+
+var Buffer = require("safer-buffer").Buffer;
+
+// NOTE: Due to 'stream' module being pretty large (~100Kb, significant in browser environments), 
+// we opt to dependency-inject it instead of creating a hard dependency.
+module.exports = function(stream_module) {
+    var Transform = stream_module.Transform;
+
+    // == Encoder stream =======================================================
+
+    function IconvLiteEncoderStream(conv, options) {
+        this.conv = conv;
+        options = options || {};
+        options.decodeStrings = false; // We accept only strings, so we don't need to decode them.
+        Transform.call(this, options);
+    }
+
+    IconvLiteEncoderStream.prototype = Object.create(Transform.prototype, {
+        constructor: { value: IconvLiteEncoderStream }
+    });
+
+    IconvLiteEncoderStream.prototype._transform = function(chunk, encoding, done) {
+        if (typeof chunk != 'string')
+            return done(new Error("Iconv encoding stream needs strings as its input."));
+        try {
+            var res = this.conv.write(chunk);
+            if (res && res.length) this.push(res);
+            done();
+        }
+        catch (e) {
+            done(e);
+        }
+    }
+
+    IconvLiteEncoderStream.prototype._flush = function(done) {
+        try {
+            var res = this.conv.end();
+            if (res && res.length) this.push(res);
+            done();
+        }
+        catch (e) {
+            done(e);
+        }
+    }
+
+    IconvLiteEncoderStream.prototype.collect = function(cb) {
+        var chunks = [];
+        this.on('error', cb);
+        this.on('data', function(chunk) { chunks.push(chunk); });
+        this.on('end', function() {
+            cb(null, Buffer.concat(chunks));
+        });
+        return this;
+    }
+
+
+    // == Decoder stream =======================================================
+
+    function IconvLiteDecoderStream(conv, options) {
+        this.conv = conv;
+        options = options || {};
+        options.encoding = this.encoding = 'utf8'; // We output strings.
+        Transform.call(this, options);
+    }
+
+    IconvLiteDecoderStream.prototype = Object.create(Transform.prototype, {
+        constructor: { value: IconvLiteDecoderStream }
+    });
+
+    IconvLiteDecoderStream.prototype._transform = function(chunk, encoding, done) {
+        if (!Buffer.isBuffer(chunk) && !(chunk instanceof Uint8Array))
+            return done(new Error("Iconv decoding stream needs buffers as its input."));
+        try {
+            var res = this.conv.write(chunk);
+            if (res && res.length) this.push(res, this.encoding);
+            done();
+        }
+        catch (e) {
+            done(e);
+        }
+    }
+
+    IconvLiteDecoderStream.prototype._flush = function(done) {
+        try {
+            var res = this.conv.end();
+            if (res && res.length) this.push(res, this.encoding);                
+            done();
+        }
+        catch (e) {
+            done(e);
+        }
+    }
+
+    IconvLiteDecoderStream.prototype.collect = function(cb) {
+        var res = '';
+        this.on('error', cb);
+        this.on('data', function(chunk) { res += chunk; });
+        this.on('end', function() {
+            cb(null, res);
+        });
+        return this;
+    }
+
+    return {
+        IconvLiteEncoderStream: IconvLiteEncoderStream,
+        IconvLiteDecoderStream: IconvLiteDecoderStream,
+    };
+};
diff --git a/node_modules/encoding/node_modules/iconv-lite/package.json b/node_modules/encoding/node_modules/iconv-lite/package.json
new file mode 100644
index 0000000..d351115
--- /dev/null
+++ b/node_modules/encoding/node_modules/iconv-lite/package.json
@@ -0,0 +1,44 @@
+{
+    "name": "iconv-lite",
+    "description": "Convert character encodings in pure javascript.",
+    "version": "0.6.3",
+    "license": "MIT",
+    "keywords": [
+        "iconv",
+        "convert",
+        "charset",
+        "icu"
+    ],
+    "author": "Alexander Shtuchkin <ashtuchkin@gmail.com>",
+    "main": "./lib/index.js",
+    "typings": "./lib/index.d.ts",
+    "homepage": "https://github.com/ashtuchkin/iconv-lite",
+    "bugs": "https://github.com/ashtuchkin/iconv-lite/issues",
+    "repository": {
+        "type": "git",
+        "url": "git://github.com/ashtuchkin/iconv-lite.git"
+    },
+    "engines": {
+        "node": ">=0.10.0"
+    },
+    "scripts": {
+        "coverage": "c8 _mocha --grep .",
+        "test": "mocha --reporter spec --grep ."
+    },
+    "browser": {
+        "stream": false
+    },
+    "devDependencies": {
+        "async": "^3.2.0",
+        "c8": "^7.2.0",
+        "errto": "^0.2.1",
+        "iconv": "^2.3.5",
+        "mocha": "^3.5.3",
+        "request": "^2.88.2",
+        "semver": "^6.3.0",
+        "unorm": "^1.6.0"
+    },
+    "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3.0.0"
+    }
+}
diff --git a/node_modules/encoding/package.json b/node_modules/encoding/package.json
new file mode 100644
index 0000000..773a943
--- /dev/null
+++ b/node_modules/encoding/package.json
@@ -0,0 +1,18 @@
+{
+    "name": "encoding",
+    "version": "0.1.13",
+    "description": "Convert encodings, uses iconv-lite",
+    "main": "lib/encoding.js",
+    "scripts": {
+        "test": "nodeunit test"
+    },
+    "repository": "https://github.com/andris9/encoding.git",
+    "author": "Andris Reinman",
+    "license": "MIT",
+    "dependencies": {
+        "iconv-lite": "^0.6.2"
+    },
+    "devDependencies": {
+        "nodeunit": "0.11.3"
+    }
+}
diff --git a/node_modules/encoding/test/test.js b/node_modules/encoding/test/test.js
new file mode 100644
index 0000000..3a7dfee
--- /dev/null
+++ b/node_modules/encoding/test/test.js
@@ -0,0 +1,49 @@
+'use strict';
+
+var encoding = require('../lib/encoding');
+
+exports['General tests'] = {
+    'From UTF-8 to Latin_1': function (test) {
+        var input = 'ÕÄÖÜ',
+            expected = Buffer.from([0xd5, 0xc4, 0xd6, 0xdc]);
+        test.deepEqual(encoding.convert(input, 'latin1'), expected);
+        test.done();
+    },
+
+    'From Latin_1 to UTF-8': function (test) {
+        var input = Buffer.from([0xd5, 0xc4, 0xd6, 0xdc]),
+            expected = 'ÕÄÖÜ';
+        test.deepEqual(encoding.convert(input, 'utf-8', 'latin1').toString(), expected);
+        test.done();
+    },
+
+    'From UTF-8 to UTF-8': function (test) {
+        var input = 'ÕÄÖÜ',
+            expected = Buffer.from('ÕÄÖÜ');
+        test.deepEqual(encoding.convert(input, 'utf-8', 'utf-8'), expected);
+        test.done();
+    },
+
+    'From Latin_13 to Latin_15': function (test) {
+        var input = Buffer.from([0xd5, 0xc4, 0xd6, 0xdc, 0xd0]),
+            expected = Buffer.from([0xd5, 0xc4, 0xd6, 0xdc, 0xa6]);
+        test.deepEqual(encoding.convert(input, 'latin_15', 'latin13'), expected);
+        test.done();
+    }
+
+    /*
+    // ISO-2022-JP is not supported by iconv-lite
+    "From ISO-2022-JP to UTF-8 with Iconv": function (test) {
+        var input = Buffer.from(
+            "GyRCM1g5OzU7PVEwdzgmPSQ4IUYkMnFKczlwGyhC",
+            "base64"
+        ),
+        expected = Buffer.from(
+            "5a2m5qCh5oqA6KGT5ZOh56CU5L+u5qSc6KiO5Lya5aCx5ZGK",
+            "base64"
+        );
+        test.deepEqual(encoding.convert(input, "utf-8", "ISO-2022-JP"), expected);
+        test.done();
+    },
+    */
+};
diff --git a/node_modules/env-paths/index.d.ts b/node_modules/env-paths/index.d.ts
new file mode 100644
index 0000000..277ddc0
--- /dev/null
+++ b/node_modules/env-paths/index.d.ts
@@ -0,0 +1,101 @@
+declare namespace envPaths {
+	export interface Options {
+		/**
+		__Don't use this option unless you really have to!__
+
+		Suffix appended to the project name to avoid name conflicts with native apps. Pass an empty string to disable it.
+
+		@default 'nodejs'
+		*/
+		readonly suffix?: string;
+	}
+
+	export interface Paths {
+		/**
+		Directory for data files.
+
+		Example locations (with the default `nodejs` suffix):
+
+		- macOS: `~/Library/Application Support/MyApp-nodejs`
+		- Windows: `%LOCALAPPDATA%\MyApp-nodejs\Data` (for example, `C:\Users\USERNAME\AppData\Local\MyApp-nodejs\Data`)
+		- Linux: `~/.local/share/MyApp-nodejs` (or `$XDG_DATA_HOME/MyApp-nodejs`)
+		*/
+		readonly data: string;
+
+		/**
+		Directory for data files.
+
+		Example locations (with the default `nodejs` suffix):
+
+		- macOS: `~/Library/Preferences/MyApp-nodejs`
+		- Windows: `%APPDATA%\MyApp-nodejs\Config` (for example, `C:\Users\USERNAME\AppData\Roaming\MyApp-nodejs\Config`)
+		- Linux: `~/.config/MyApp-nodejs` (or `$XDG_CONFIG_HOME/MyApp-nodejs`)
+		*/
+		readonly config: string;
+
+		/**
+		Directory for non-essential data files.
+
+		Example locations (with the default `nodejs` suffix):
+
+		- macOS: `~/Library/Caches/MyApp-nodejs`
+		- Windows: `%LOCALAPPDATA%\MyApp-nodejs\Cache` (for example, `C:\Users\USERNAME\AppData\Local\MyApp-nodejs\Cache`)
+		- Linux: `~/.cache/MyApp-nodejs` (or `$XDG_CACHE_HOME/MyApp-nodejs`)
+		*/
+		readonly cache: string;
+
+		/**
+		Directory for log files.
+
+		Example locations (with the default `nodejs` suffix):
+
+		- macOS: `~/Library/Logs/MyApp-nodejs`
+		- Windows: `%LOCALAPPDATA%\MyApp-nodejs\Log` (for example, `C:\Users\USERNAME\AppData\Local\MyApp-nodejs\Log`)
+		- Linux: `~/.local/state/MyApp-nodejs` (or `$XDG_STATE_HOME/MyApp-nodejs`)
+		*/
+		readonly log: string;
+
+		/**
+		Directory for temporary files.
+
+		Example locations (with the default `nodejs` suffix):
+
+		- macOS: `/var/folders/jf/f2twvvvs5jl_m49tf034ffpw0000gn/T/MyApp-nodejs`
+		- Windows: `%LOCALAPPDATA%\Temp\MyApp-nodejs` (for example, `C:\Users\USERNAME\AppData\Local\Temp\MyApp-nodejs`)
+		- Linux: `/tmp/USERNAME/MyApp-nodejs`
+		*/
+		readonly temp: string;
+	}
+}
+
+declare const envPaths: {
+	/**
+	Get paths for storing things like data, config, cache, etc.
+
+	Note: It only generates the path strings. It doesn't create the directories for you. You could use [`make-dir`](https://github.com/sindresorhus/make-dir) to create the directories.
+
+	@param name - Name of your project. Used to generate the paths.
+	@returns The paths to use for your project on current OS.
+
+	@example
+	```
+	import envPaths = require('env-paths');
+
+	const paths = envPaths('MyApp');
+
+	paths.data;
+	//=> '/home/sindresorhus/.local/share/MyApp-nodejs'
+
+	paths.config
+	//=> '/home/sindresorhus/.config/MyApp-nodejs'
+	```
+	*/
+	(name: string, options?: envPaths.Options): envPaths.Paths;
+
+	// TODO: Remove this for the next major release, refactor the whole definition to:
+	// declare function envPaths(name: string, options?: envPaths.Options): envPaths.Paths;
+	// export = envPaths;
+	default: typeof envPaths;
+};
+
+export = envPaths;
diff --git a/node_modules/env-paths/index.js b/node_modules/env-paths/index.js
new file mode 100644
index 0000000..7e7b50b
--- /dev/null
+++ b/node_modules/env-paths/index.js
@@ -0,0 +1,74 @@
+'use strict';
+const path = require('path');
+const os = require('os');
+
+const homedir = os.homedir();
+const tmpdir = os.tmpdir();
+const {env} = process;
+
+const macos = name => {
+	const library = path.join(homedir, 'Library');
+
+	return {
+		data: path.join(library, 'Application Support', name),
+		config: path.join(library, 'Preferences', name),
+		cache: path.join(library, 'Caches', name),
+		log: path.join(library, 'Logs', name),
+		temp: path.join(tmpdir, name)
+	};
+};
+
+const windows = name => {
+	const appData = env.APPDATA || path.join(homedir, 'AppData', 'Roaming');
+	const localAppData = env.LOCALAPPDATA || path.join(homedir, 'AppData', 'Local');
+
+	return {
+		// Data/config/cache/log are invented by me as Windows isn't opinionated about this
+		data: path.join(localAppData, name, 'Data'),
+		config: path.join(appData, name, 'Config'),
+		cache: path.join(localAppData, name, 'Cache'),
+		log: path.join(localAppData, name, 'Log'),
+		temp: path.join(tmpdir, name)
+	};
+};
+
+// https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html
+const linux = name => {
+	const username = path.basename(homedir);
+
+	return {
+		data: path.join(env.XDG_DATA_HOME || path.join(homedir, '.local', 'share'), name),
+		config: path.join(env.XDG_CONFIG_HOME || path.join(homedir, '.config'), name),
+		cache: path.join(env.XDG_CACHE_HOME || path.join(homedir, '.cache'), name),
+		// https://wiki.debian.org/XDGBaseDirectorySpecification#state
+		log: path.join(env.XDG_STATE_HOME || path.join(homedir, '.local', 'state'), name),
+		temp: path.join(tmpdir, username, name)
+	};
+};
+
+const envPaths = (name, options) => {
+	if (typeof name !== 'string') {
+		throw new TypeError(`Expected string, got ${typeof name}`);
+	}
+
+	options = Object.assign({suffix: 'nodejs'}, options);
+
+	if (options.suffix) {
+		// Add suffix to prevent possible conflict with native apps
+		name += `-${options.suffix}`;
+	}
+
+	if (process.platform === 'darwin') {
+		return macos(name);
+	}
+
+	if (process.platform === 'win32') {
+		return windows(name);
+	}
+
+	return linux(name);
+};
+
+module.exports = envPaths;
+// TODO: Remove this for the next major release
+module.exports.default = envPaths;
diff --git a/node_modules/env-paths/license b/node_modules/env-paths/license
new file mode 100644
index 0000000..e7af2f7
--- /dev/null
+++ b/node_modules/env-paths/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/env-paths/package.json b/node_modules/env-paths/package.json
new file mode 100644
index 0000000..fae4ebc
--- /dev/null
+++ b/node_modules/env-paths/package.json
@@ -0,0 +1,45 @@
+{
+	"name": "env-paths",
+	"version": "2.2.1",
+	"description": "Get paths for storing things like data, config, cache, etc",
+	"license": "MIT",
+	"repository": "sindresorhus/env-paths",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=6"
+	},
+	"scripts": {
+		"test": "xo && ava && tsd"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"common",
+		"user",
+		"paths",
+		"env",
+		"environment",
+		"directory",
+		"dir",
+		"appdir",
+		"path",
+		"data",
+		"config",
+		"cache",
+		"logs",
+		"temp",
+		"linux",
+		"unix"
+	],
+	"devDependencies": {
+		"ava": "^1.4.1",
+		"tsd": "^0.7.1",
+		"xo": "^0.24.0"
+	}
+}
diff --git a/node_modules/env-paths/readme.md b/node_modules/env-paths/readme.md
new file mode 100644
index 0000000..b66d571
--- /dev/null
+++ b/node_modules/env-paths/readme.md
@@ -0,0 +1,115 @@
+# env-paths
+
+> Get paths for storing things like data, config, cache, etc
+
+Uses the correct OS-specific paths. Most developers get this wrong.
+
+
+## Install
+
+```
+$ npm install env-paths
+```
+
+
+## Usage
+
+```js
+const envPaths = require('env-paths');
+
+const paths = envPaths('MyApp');
+
+paths.data;
+//=> '/home/sindresorhus/.local/share/MyApp-nodejs'
+
+paths.config
+//=> '/home/sindresorhus/.config/MyApp-nodejs'
+```
+
+
+## API
+
+### paths = envPaths(name, options?)
+
+Note: It only generates the path strings. It doesn't create the directories for you. You could use [`make-dir`](https://github.com/sindresorhus/make-dir) to create the directories.
+
+#### name
+
+Type: `string`
+
+Name of your project. Used to generate the paths.
+
+#### options
+
+Type: `object`
+
+##### suffix
+
+Type: `string`<br>
+Default: `'nodejs'`
+
+**Don't use this option unless you really have to!**<br>
+Suffix appended to the project name to avoid name conflicts with native
+apps. Pass an empty string to disable it.
+
+### paths.data
+
+Directory for data files.
+
+Example locations (with the default `nodejs` [suffix](#suffix)):
+
+- macOS: `~/Library/Application Support/MyApp-nodejs`
+- Windows: `%LOCALAPPDATA%\MyApp-nodejs\Data` (for example, `C:\Users\USERNAME\AppData\Local\MyApp-nodejs\Data`)
+- Linux: `~/.local/share/MyApp-nodejs` (or `$XDG_DATA_HOME/MyApp-nodejs`)
+
+### paths.config
+
+Directory for config files.
+
+Example locations (with the default `nodejs` [suffix](#suffix)):
+
+- macOS: `~/Library/Preferences/MyApp-nodejs`
+- Windows: `%APPDATA%\MyApp-nodejs\Config` (for example, `C:\Users\USERNAME\AppData\Roaming\MyApp-nodejs\Config`)
+- Linux: `~/.config/MyApp-nodejs` (or `$XDG_CONFIG_HOME/MyApp-nodejs`)
+
+### paths.cache
+
+Directory for non-essential data files.
+
+Example locations (with the default `nodejs` [suffix](#suffix)):
+
+- macOS: `~/Library/Caches/MyApp-nodejs`
+- Windows: `%LOCALAPPDATA%\MyApp-nodejs\Cache` (for example, `C:\Users\USERNAME\AppData\Local\MyApp-nodejs\Cache`)
+- Linux: `~/.cache/MyApp-nodejs` (or `$XDG_CACHE_HOME/MyApp-nodejs`)
+
+### paths.log
+
+Directory for log files.
+
+Example locations (with the default `nodejs` [suffix](#suffix)):
+
+- macOS: `~/Library/Logs/MyApp-nodejs`
+- Windows: `%LOCALAPPDATA%\MyApp-nodejs\Log` (for example, `C:\Users\USERNAME\AppData\Local\MyApp-nodejs\Log`)
+- Linux: `~/.local/state/MyApp-nodejs` (or `$XDG_STATE_HOME/MyApp-nodejs`)
+
+### paths.temp
+
+Directory for temporary files.
+
+Example locations (with the default `nodejs` [suffix](#suffix)):
+
+- macOS: `/var/folders/jf/f2twvvvs5jl_m49tf034ffpw0000gn/T/MyApp-nodejs`
+- Windows: `%LOCALAPPDATA%\Temp\MyApp-nodejs` (for example, `C:\Users\USERNAME\AppData\Local\Temp\MyApp-nodejs`)
+- Linux: `/tmp/USERNAME/MyApp-nodejs`
+
+---
+
+<div align="center">
+	<b>
+		<a href="https://tidelift.com/subscription/pkg/npm-env-paths?utm_source=npm-env-paths&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
+	</b>
+	<br>
+	<sub>
+		Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
+	</sub>
+</div>
diff --git a/node_modules/err-code/.editorconfig b/node_modules/err-code/.editorconfig
new file mode 100644
index 0000000..829280b
--- /dev/null
+++ b/node_modules/err-code/.editorconfig
@@ -0,0 +1,12 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[package.json]
+indent_size = 2
diff --git a/node_modules/err-code/.eslintrc.json b/node_modules/err-code/.eslintrc.json
new file mode 100644
index 0000000..4829595
--- /dev/null
+++ b/node_modules/err-code/.eslintrc.json
@@ -0,0 +1,7 @@
+{
+    "root": true,
+    "extends": [
+        "@satazor/eslint-config/es6",
+        "@satazor/eslint-config/addons/node"
+    ]
+}
\ No newline at end of file
diff --git a/node_modules/err-code/.travis.yml b/node_modules/err-code/.travis.yml
new file mode 100644
index 0000000..b29cf66
--- /dev/null
+++ b/node_modules/err-code/.travis.yml
@@ -0,0 +1,4 @@
+language: node_js
+node_js:
+  - "4"
+  - "6"
diff --git a/node_modules/err-code/README.md b/node_modules/err-code/README.md
new file mode 100644
index 0000000..5afdab0
--- /dev/null
+++ b/node_modules/err-code/README.md
@@ -0,0 +1,70 @@
+# err-code
+
+[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Dependency status][david-dm-image]][david-dm-url] [![Dev Dependency status][david-dm-dev-image]][david-dm-dev-url] [![Greenkeeper badge][greenkeeper-image]][greenkeeper-url]
+
+[npm-url]:https://npmjs.org/package/err-code
+[downloads-image]:http://img.shields.io/npm/dm/err-code.svg
+[npm-image]:http://img.shields.io/npm/v/err-code.svg
+[travis-url]:https://travis-ci.org/IndigoUnited/js-err-code
+[travis-image]:http://img.shields.io/travis/IndigoUnited/js-err-code/master.svg
+[david-dm-url]:https://david-dm.org/IndigoUnited/js-err-code
+[david-dm-image]:https://img.shields.io/david/IndigoUnited/js-err-code.svg
+[david-dm-dev-url]:https://david-dm.org/IndigoUnited/js-err-code?type=dev
+[david-dm-dev-image]:https://img.shields.io/david/dev/IndigoUnited/js-err-code.svg
+[greenkeeper-image]:https://badges.greenkeeper.io/IndigoUnited/js-err-code.svg
+[greenkeeper-url]:https://greenkeeper.io/
+
+Create new error instances with a code and additional properties.
+
+
+## Installation
+
+```console
+$ npm install err-code
+// or
+$ bower install err-code
+```
+
+The browser file is named index.umd.js which supports CommonJS, AMD and globals (errCode).
+
+
+## Why
+
+I find myself doing this repeatedly:
+
+```js
+var err = new Error('My message');
+err.code = 'SOMECODE';
+err.detail = 'Additional information about the error';
+throw err;
+```
+
+
+## Usage
+
+Simple usage.
+
+```js
+var errcode = require('err-code');
+
+// fill error with message + code
+throw errcode(new Error('My message'), 'ESOMECODE');
+// fill error with message + code + props
+throw errcode(new Error('My message'), 'ESOMECODE', { detail: 'Additional information about the error' });
+// fill error with message + props
+throw errcode(new Error('My message'), { detail: 'Additional information about the error' });
+```
+
+## Pre-existing fields
+
+If the passed `Error` already has a `.code` field, or fields specified in the third argument to `errcode` they will be overwritten, unless the fields are read only or otherwise throw during assignment in which case a new object will be created that shares a prototype chain with the original `Error`. The `.stack` and `.message` properties will be carried over from the original error and `.code` or any passed properties will be set on it.
+
+
+## Tests
+
+`$ npm test`
+
+
+## License
+
+Released under the [MIT License](http://www.opensource.org/licenses/mit-license.php).
diff --git a/node_modules/err-code/bower.json b/node_modules/err-code/bower.json
new file mode 100644
index 0000000..a39cb70
--- /dev/null
+++ b/node_modules/err-code/bower.json
@@ -0,0 +1,30 @@
+{
+  "name": "err-code",
+  "version": "1.1.1",
+  "description": "Create new error instances with a code and additional properties",
+  "main": "index.umd.js",
+  "homepage": "https://github.com/IndigoUnited/js-err-code",
+  "authors": [
+    "IndigoUnited <hello@indigounited.com> (http://indigounited.com)"
+  ],
+  "moduleType": [
+    "amd",
+    "globals",
+    "node"
+  ],
+  "keywords": [
+      "error",
+      "err",
+      "code",
+      "properties",
+      "property"
+  ],
+  "license": "MIT",
+  "ignore": [
+    "**/.*",
+    "node_modules",
+    "bower_components",
+    "test",
+    "tests"
+  ]
+}
diff --git a/node_modules/err-code/index.js b/node_modules/err-code/index.js
new file mode 100644
index 0000000..9ff3e9c
--- /dev/null
+++ b/node_modules/err-code/index.js
@@ -0,0 +1,47 @@
+'use strict';
+
+function assign(obj, props) {
+    for (const key in props) {
+        Object.defineProperty(obj, key, {
+            value: props[key],
+            enumerable: true,
+            configurable: true,
+        });
+    }
+
+    return obj;
+}
+
+function createError(err, code, props) {
+    if (!err || typeof err === 'string') {
+        throw new TypeError('Please pass an Error to err-code');
+    }
+
+    if (!props) {
+        props = {};
+    }
+
+    if (typeof code === 'object') {
+        props = code;
+        code = undefined;
+    }
+
+    if (code != null) {
+        props.code = code;
+    }
+
+    try {
+        return assign(err, props);
+    } catch (_) {
+        props.message = err.message;
+        props.stack = err.stack;
+
+        const ErrClass = function () {};
+
+        ErrClass.prototype = Object.create(Object.getPrototypeOf(err));
+
+        return assign(new ErrClass(), props);
+    }
+}
+
+module.exports = createError;
diff --git a/node_modules/err-code/index.umd.js b/node_modules/err-code/index.umd.js
new file mode 100644
index 0000000..4100726
--- /dev/null
+++ b/node_modules/err-code/index.umd.js
@@ -0,0 +1,51 @@
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.errCode = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
+'use strict';
+
+function assign(obj, props) {
+    for (const key in props) {
+        Object.defineProperty(obj, key, {
+            value: props[key],
+            enumerable: true,
+            configurable: true,
+        });
+    }
+
+    return obj;
+}
+
+function createError(err, code, props) {
+    if (!err || typeof err === 'string') {
+        throw new TypeError('Please pass an Error to err-code');
+    }
+
+    if (!props) {
+        props = {};
+    }
+
+    if (typeof code === 'object') {
+        props = code;
+        code = undefined;
+    }
+
+    if (code != null) {
+        props.code = code;
+    }
+
+    try {
+        return assign(err, props);
+    } catch (_) {
+        props.message = err.message;
+        props.stack = err.stack;
+
+        const ErrClass = function () {};
+
+        ErrClass.prototype = Object.create(Object.getPrototypeOf(err));
+
+        return assign(new ErrClass(), props);
+    }
+}
+
+module.exports = createError;
+
+},{}]},{},[1])(1)
+});
diff --git a/node_modules/err-code/package.json b/node_modules/err-code/package.json
new file mode 100644
index 0000000..8c6007b
--- /dev/null
+++ b/node_modules/err-code/package.json
@@ -0,0 +1,34 @@
+{
+  "name": "err-code",
+  "version": "2.0.3",
+  "description": "Create an error with a code",
+  "main": "index.js",
+  "scripts": {
+    "lint": "eslint '{*.js,test/**/*.js}' --ignore-pattern *.umd.js",
+    "test": "mocha --bail",
+    "browserify": "browserify -s err-code index.js > index.umd.js"
+  },
+  "bugs": {
+    "url": "https://github.com/IndigoUnited/js-err-code/issues/"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/IndigoUnited/js-err-code.git"
+  },
+  "keywords": [
+    "error",
+    "err",
+    "code",
+    "properties",
+    "property"
+  ],
+  "author": "IndigoUnited <hello@indigounited.com> (http://indigounited.com)",
+  "license": "MIT",
+  "devDependencies": {
+    "@satazor/eslint-config": "^3.0.0",
+    "browserify": "^16.5.1",
+    "eslint": "^7.2.0",
+    "expect.js": "^0.3.1",
+    "mocha": "^8.0.1"
+  }
+}
diff --git a/node_modules/err-code/test/.eslintrc.json b/node_modules/err-code/test/.eslintrc.json
new file mode 100644
index 0000000..f9fbb2d
--- /dev/null
+++ b/node_modules/err-code/test/.eslintrc.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "mocha": true
+    }
+}
\ No newline at end of file
diff --git a/node_modules/err-code/test/test.js b/node_modules/err-code/test/test.js
new file mode 100644
index 0000000..22ba0a8
--- /dev/null
+++ b/node_modules/err-code/test/test.js
@@ -0,0 +1,159 @@
+'use strict';
+
+const errcode = require('../index');
+const expect = require('expect.js');
+
+describe('errcode', () => {
+    describe('string as first argument', () => {
+        it('should throw an error', () => {
+            expect(() => { errcode('my message'); }).to.throwError((err) => {
+                expect(err).to.be.a(TypeError);
+            });
+        });
+    });
+
+    describe('error as first argument', () => {
+        it('should accept an error and do nothing', () => {
+            const myErr = new Error('my message');
+            const err = errcode(myErr);
+
+            expect(err).to.be(myErr);
+            expect(err.hasOwnProperty(err.code)).to.be(false);
+        });
+
+        it('should accept an error and add a code', () => {
+            const myErr = new Error('my message');
+            const err = errcode(myErr, 'ESOME');
+
+            expect(err).to.be(myErr);
+            expect(err.code).to.be('ESOME');
+        });
+
+        it('should accept an error object and add code & properties', () => {
+            const myErr = new Error('my message');
+            const err = errcode(myErr, 'ESOME', { foo: 'bar', bar: 'foo' });
+
+            expect(err).to.be.an(Error);
+            expect(err.code).to.be('ESOME');
+            expect(err.foo).to.be('bar');
+            expect(err.bar).to.be('foo');
+        });
+
+        it('should create an error object without code but with properties', () => {
+            const myErr = new Error('my message');
+            const err = errcode(myErr, { foo: 'bar', bar: 'foo' });
+
+            expect(err).to.be.an(Error);
+            expect(err.code).to.be(undefined);
+            expect(err.foo).to.be('bar');
+            expect(err.bar).to.be('foo');
+        });
+
+        it('should set a non-writable field', () => {
+            const myErr = new Error('my message');
+
+            Object.defineProperty(myErr, 'code', {
+                value: 'derp',
+                writable: false,
+            });
+            const err = errcode(myErr, 'ERR_WAT');
+
+            expect(err).to.be.an(Error);
+            expect(err.stack).to.equal(myErr.stack);
+            expect(err.code).to.be('ERR_WAT');
+        });
+
+        it('should add a code to frozen object', () => {
+            const myErr = new Error('my message');
+            const err = errcode(Object.freeze(myErr), 'ERR_WAT');
+
+            expect(err).to.be.an(Error);
+            expect(err.stack).to.equal(myErr.stack);
+            expect(err.code).to.be('ERR_WAT');
+        });
+
+        it('should to set a field that throws at assignment time', () => {
+            const myErr = new Error('my message');
+
+            Object.defineProperty(myErr, 'code', {
+                enumerable: true,
+                set() {
+                    throw new Error('Nope!');
+                },
+                get() {
+                    return 'derp';
+                },
+            });
+            const err = errcode(myErr, 'ERR_WAT');
+
+            expect(err).to.be.an(Error);
+            expect(err.stack).to.equal(myErr.stack);
+            expect(err.code).to.be('ERR_WAT');
+        });
+
+        it('should retain error type', () => {
+            const myErr = new TypeError('my message');
+
+            Object.defineProperty(myErr, 'code', {
+                value: 'derp',
+                writable: false,
+            });
+            const err = errcode(myErr, 'ERR_WAT');
+
+            expect(err).to.be.a(TypeError);
+            expect(err.stack).to.equal(myErr.stack);
+            expect(err.code).to.be('ERR_WAT');
+        });
+
+        it('should add a code to a class that extends Error', () => {
+            class CustomError extends Error {
+                set code(val) {
+                    throw new Error('Nope!');
+                }
+            }
+
+            const myErr = new CustomError('my message');
+
+            Object.defineProperty(myErr, 'code', {
+                value: 'derp',
+                writable: false,
+                configurable: false,
+            });
+            const err = errcode(myErr, 'ERR_WAT');
+
+            expect(err).to.be.a(CustomError);
+            expect(err.stack).to.equal(myErr.stack);
+            expect(err.code).to.be('ERR_WAT');
+
+            // original prototype chain should be intact
+            expect(() => {
+                const otherErr = new CustomError('my message');
+
+                otherErr.code = 'derp';
+            }).to.throwError();
+        });
+
+        it('should support errors that are not Errors', () => {
+            const err = errcode({
+                message: 'Oh noes!',
+            }, 'ERR_WAT');
+
+            expect(err.message).to.be('Oh noes!');
+            expect(err.code).to.be('ERR_WAT');
+        });
+    });
+
+    describe('falsy first arguments', () => {
+        it('should not allow passing null as the first argument', () => {
+            expect(() => { errcode(null); }).to.throwError((err) => {
+                expect(err).to.be.a(TypeError);
+            });
+        });
+
+        it('should not allow passing undefined as the first argument', () => {
+            expect(() => { errcode(undefined); }).to.throwError((err) => {
+                expect(err).to.be.a(TypeError);
+            });
+        });
+    });
+});
diff --git a/node_modules/fs-minipass/LICENSE b/node_modules/fs-minipass/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/fs-minipass/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/fs-minipass/README.md b/node_modules/fs-minipass/README.md
new file mode 100644
index 0000000..1e61241
--- /dev/null
+++ b/node_modules/fs-minipass/README.md
@@ -0,0 +1,70 @@
+# fs-minipass
+
+Filesystem streams based on [minipass](http://npm.im/minipass).
+
+4 classes are exported:
+
+- ReadStream
+- ReadStreamSync
+- WriteStream
+- WriteStreamSync
+
+When using `ReadStreamSync`, all of the data is made available
+immediately upon consuming the stream.  Nothing is buffered in memory
+when the stream is constructed.  If the stream is piped to a writer,
+then it will synchronously `read()` and emit data into the writer as
+fast as the writer can consume it.  (That is, it will respect
+backpressure.)  If you call `stream.read()` then it will read the
+entire file and return the contents.
+
+When using `WriteStreamSync`, every write is flushed to the file
+synchronously.  If your writes all come in a single tick, then it'll
+write it all out in a single tick.  It's as synchronous as you are.
+
+The async versions work much like their node builtin counterparts,
+with the exception of introducing significantly less Stream machinery
+overhead.
+
+## USAGE
+
+It's just streams, you pipe them or read() them or write() to them.
+
+```js
+const fsm = require('fs-minipass')
+const readStream = new fsm.ReadStream('file.txt')
+const writeStream = new fsm.WriteStream('output.txt')
+writeStream.write('some file header or whatever\n')
+readStream.pipe(writeStream)
+```
+
+## ReadStream(path, options)
+
+Path string is required, but somewhat irrelevant if an open file
+descriptor is passed in as an option.
+
+Options:
+
+- `fd` Pass in a numeric file descriptor, if the file is already open.
+- `readSize` The size of reads to do, defaults to 16MB
+- `size` The size of the file, if known.  Prevents zero-byte read()
+  call at the end.
+- `autoClose` Set to `false` to prevent the file descriptor from being
+  closed when the file is done being read.
+
+## WriteStream(path, options)
+
+Path string is required, but somewhat irrelevant if an open file
+descriptor is passed in as an option.
+
+Options:
+
+- `fd` Pass in a numeric file descriptor, if the file is already open.
+- `mode` The mode to create the file with. Defaults to `0o666`.
+- `start` The position in the file to start reading.  If not
+  specified, then the file will start writing at position zero, and be
+  truncated by default.
+- `autoClose` Set to `false` to prevent the file descriptor from being
+  closed when the stream is ended.
+- `flags` Flags to use when opening the file.  Irrelevant if `fd` is
+  passed in, since file won't be opened in that case.  Defaults to
+  `'a'` if a `pos` is specified, or `'w'` otherwise.
diff --git a/node_modules/fs-minipass/index.js b/node_modules/fs-minipass/index.js
new file mode 100644
index 0000000..9b0779c
--- /dev/null
+++ b/node_modules/fs-minipass/index.js
@@ -0,0 +1,422 @@
+'use strict'
+const MiniPass = require('minipass')
+const EE = require('events').EventEmitter
+const fs = require('fs')
+
+let writev = fs.writev
+/* istanbul ignore next */
+if (!writev) {
+  // This entire block can be removed if support for earlier than Node.js
+  // 12.9.0 is not needed.
+  const binding = process.binding('fs')
+  const FSReqWrap = binding.FSReqWrap || binding.FSReqCallback
+
+  writev = (fd, iovec, pos, cb) => {
+    const done = (er, bw) => cb(er, bw, iovec)
+    const req = new FSReqWrap()
+    req.oncomplete = done
+    binding.writeBuffers(fd, iovec, pos, req)
+  }
+}
+
+const _autoClose = Symbol('_autoClose')
+const _close = Symbol('_close')
+const _ended = Symbol('_ended')
+const _fd = Symbol('_fd')
+const _finished = Symbol('_finished')
+const _flags = Symbol('_flags')
+const _flush = Symbol('_flush')
+const _handleChunk = Symbol('_handleChunk')
+const _makeBuf = Symbol('_makeBuf')
+const _mode = Symbol('_mode')
+const _needDrain = Symbol('_needDrain')
+const _onerror = Symbol('_onerror')
+const _onopen = Symbol('_onopen')
+const _onread = Symbol('_onread')
+const _onwrite = Symbol('_onwrite')
+const _open = Symbol('_open')
+const _path = Symbol('_path')
+const _pos = Symbol('_pos')
+const _queue = Symbol('_queue')
+const _read = Symbol('_read')
+const _readSize = Symbol('_readSize')
+const _reading = Symbol('_reading')
+const _remain = Symbol('_remain')
+const _size = Symbol('_size')
+const _write = Symbol('_write')
+const _writing = Symbol('_writing')
+const _defaultFlag = Symbol('_defaultFlag')
+const _errored = Symbol('_errored')
+
+class ReadStream extends MiniPass {
+  constructor (path, opt) {
+    opt = opt || {}
+    super(opt)
+
+    this.readable = true
+    this.writable = false
+
+    if (typeof path !== 'string')
+      throw new TypeError('path must be a string')
+
+    this[_errored] = false
+    this[_fd] = typeof opt.fd === 'number' ? opt.fd : null
+    this[_path] = path
+    this[_readSize] = opt.readSize || 16*1024*1024
+    this[_reading] = false
+    this[_size] = typeof opt.size === 'number' ? opt.size : Infinity
+    this[_remain] = this[_size]
+    this[_autoClose] = typeof opt.autoClose === 'boolean' ?
+      opt.autoClose : true
+
+    if (typeof this[_fd] === 'number')
+      this[_read]()
+    else
+      this[_open]()
+  }
+
+  get fd () { return this[_fd] }
+  get path () { return this[_path] }
+
+  write () {
+    throw new TypeError('this is a readable stream')
+  }
+
+  end () {
+    throw new TypeError('this is a readable stream')
+  }
+
+  [_open] () {
+    fs.open(this[_path], 'r', (er, fd) => this[_onopen](er, fd))
+  }
+
+  [_onopen] (er, fd) {
+    if (er)
+      this[_onerror](er)
+    else {
+      this[_fd] = fd
+      this.emit('open', fd)
+      this[_read]()
+    }
+  }
+
+  [_makeBuf] () {
+    return Buffer.allocUnsafe(Math.min(this[_readSize], this[_remain]))
+  }
+
+  [_read] () {
+    if (!this[_reading]) {
+      this[_reading] = true
+      const buf = this[_makeBuf]()
+      /* istanbul ignore if */
+      if (buf.length === 0)
+        return process.nextTick(() => this[_onread](null, 0, buf))
+      fs.read(this[_fd], buf, 0, buf.length, null, (er, br, buf) =>
+        this[_onread](er, br, buf))
+    }
+  }
+
+  [_onread] (er, br, buf) {
+    this[_reading] = false
+    if (er)
+      this[_onerror](er)
+    else if (this[_handleChunk](br, buf))
+      this[_read]()
+  }
+
+  [_close] () {
+    if (this[_autoClose] && typeof this[_fd] === 'number') {
+      const fd = this[_fd]
+      this[_fd] = null
+      fs.close(fd, er => er ? this.emit('error', er) : this.emit('close'))
+    }
+  }
+
+  [_onerror] (er) {
+    this[_reading] = true
+    this[_close]()
+    this.emit('error', er)
+  }
+
+  [_handleChunk] (br, buf) {
+    let ret = false
+    // no effect if infinite
+    this[_remain] -= br
+    if (br > 0)
+      ret = super.write(br < buf.length ? buf.slice(0, br) : buf)
+
+    if (br === 0 || this[_remain] <= 0) {
+      ret = false
+      this[_close]()
+      super.end()
+    }
+
+    return ret
+  }
+
+  emit (ev, data) {
+    switch (ev) {
+      case 'prefinish':
+      case 'finish':
+        break
+
+      case 'drain':
+        if (typeof this[_fd] === 'number')
+          this[_read]()
+        break
+
+      case 'error':
+        if (this[_errored])
+          return
+        this[_errored] = true
+        return super.emit(ev, data)
+
+      default:
+        return super.emit(ev, data)
+    }
+  }
+}
+
+class ReadStreamSync extends ReadStream {
+  [_open] () {
+    let threw = true
+    try {
+      this[_onopen](null, fs.openSync(this[_path], 'r'))
+      threw = false
+    } finally {
+      if (threw)
+        this[_close]()
+    }
+  }
+
+  [_read] () {
+    let threw = true
+    try {
+      if (!this[_reading]) {
+        this[_reading] = true
+        do {
+          const buf = this[_makeBuf]()
+          /* istanbul ignore next */
+          const br = buf.length === 0 ? 0
+            : fs.readSync(this[_fd], buf, 0, buf.length, null)
+          if (!this[_handleChunk](br, buf))
+            break
+        } while (true)
+        this[_reading] = false
+      }
+      threw = false
+    } finally {
+      if (threw)
+        this[_close]()
+    }
+  }
+
+  [_close] () {
+    if (this[_autoClose] && typeof this[_fd] === 'number') {
+      const fd = this[_fd]
+      this[_fd] = null
+      fs.closeSync(fd)
+      this.emit('close')
+    }
+  }
+}
+
+class WriteStream extends EE {
+  constructor (path, opt) {
+    opt = opt || {}
+    super(opt)
+    this.readable = false
+    this.writable = true
+    this[_errored] = false
+    this[_writing] = false
+    this[_ended] = false
+    this[_needDrain] = false
+    this[_queue] = []
+    this[_path] = path
+    this[_fd] = typeof opt.fd === 'number' ? opt.fd : null
+    this[_mode] = opt.mode === undefined ? 0o666 : opt.mode
+    this[_pos] = typeof opt.start === 'number' ? opt.start : null
+    this[_autoClose] = typeof opt.autoClose === 'boolean' ?
+      opt.autoClose : true
+
+    // truncating makes no sense when writing into the middle
+    const defaultFlag = this[_pos] !== null ? 'r+' : 'w'
+    this[_defaultFlag] = opt.flags === undefined
+    this[_flags] = this[_defaultFlag] ? defaultFlag : opt.flags
+
+    if (this[_fd] === null)
+      this[_open]()
+  }
+
+  emit (ev, data) {
+    if (ev === 'error') {
+      if (this[_errored])
+        return
+      this[_errored] = true
+    }
+    return super.emit(ev, data)
+  }
+
+
+  get fd () { return this[_fd] }
+  get path () { return this[_path] }
+
+  [_onerror] (er) {
+    this[_close]()
+    this[_writing] = true
+    this.emit('error', er)
+  }
+
+  [_open] () {
+    fs.open(this[_path], this[_flags], this[_mode],
+      (er, fd) => this[_onopen](er, fd))
+  }
+
+  [_onopen] (er, fd) {
+    if (this[_defaultFlag] &&
+        this[_flags] === 'r+' &&
+        er && er.code === 'ENOENT') {
+      this[_flags] = 'w'
+      this[_open]()
+    } else if (er)
+      this[_onerror](er)
+    else {
+      this[_fd] = fd
+      this.emit('open', fd)
+      this[_flush]()
+    }
+  }
+
+  end (buf, enc) {
+    if (buf)
+      this.write(buf, enc)
+
+    this[_ended] = true
+
+    // synthetic after-write logic, where drain/finish live
+    if (!this[_writing] && !this[_queue].length &&
+        typeof this[_fd] === 'number')
+      this[_onwrite](null, 0)
+    return this
+  }
+
+  write (buf, enc) {
+    if (typeof buf === 'string')
+      buf = Buffer.from(buf, enc)
+
+    if (this[_ended]) {
+      this.emit('error', new Error('write() after end()'))
+      return false
+    }
+
+    if (this[_fd] === null || this[_writing] || this[_queue].length) {
+      this[_queue].push(buf)
+      this[_needDrain] = true
+      return false
+    }
+
+    this[_writing] = true
+    this[_write](buf)
+    return true
+  }
+
+  [_write] (buf) {
+    fs.write(this[_fd], buf, 0, buf.length, this[_pos], (er, bw) =>
+      this[_onwrite](er, bw))
+  }
+
+  [_onwrite] (er, bw) {
+    if (er)
+      this[_onerror](er)
+    else {
+      if (this[_pos] !== null)
+        this[_pos] += bw
+      if (this[_queue].length)
+        this[_flush]()
+      else {
+        this[_writing] = false
+
+        if (this[_ended] && !this[_finished]) {
+          this[_finished] = true
+          this[_close]()
+          this.emit('finish')
+        } else if (this[_needDrain]) {
+          this[_needDrain] = false
+          this.emit('drain')
+        }
+      }
+    }
+  }
+
+  [_flush] () {
+    if (this[_queue].length === 0) {
+      if (this[_ended])
+        this[_onwrite](null, 0)
+    } else if (this[_queue].length === 1)
+      this[_write](this[_queue].pop())
+    else {
+      const iovec = this[_queue]
+      this[_queue] = []
+      writev(this[_fd], iovec, this[_pos],
+        (er, bw) => this[_onwrite](er, bw))
+    }
+  }
+
+  [_close] () {
+    if (this[_autoClose] && typeof this[_fd] === 'number') {
+      const fd = this[_fd]
+      this[_fd] = null
+      fs.close(fd, er => er ? this.emit('error', er) : this.emit('close'))
+    }
+  }
+}
+
+class WriteStreamSync extends WriteStream {
+  [_open] () {
+    let fd
+    // only wrap in a try{} block if we know we'll retry, to avoid
+    // the rethrow obscuring the error's source frame in most cases.
+    if (this[_defaultFlag] && this[_flags] === 'r+') {
+      try {
+        fd = fs.openSync(this[_path], this[_flags], this[_mode])
+      } catch (er) {
+        if (er.code === 'ENOENT') {
+          this[_flags] = 'w'
+          return this[_open]()
+        } else
+          throw er
+      }
+    } else
+      fd = fs.openSync(this[_path], this[_flags], this[_mode])
+
+    this[_onopen](null, fd)
+  }
+
+  [_close] () {
+    if (this[_autoClose] && typeof this[_fd] === 'number') {
+      const fd = this[_fd]
+      this[_fd] = null
+      fs.closeSync(fd)
+      this.emit('close')
+    }
+  }
+
+  [_write] (buf) {
+    // throw the original, but try to close if it fails
+    let threw = true
+    try {
+      this[_onwrite](null,
+        fs.writeSync(this[_fd], buf, 0, buf.length, this[_pos]))
+      threw = false
+    } finally {
+      if (threw)
+        try { this[_close]() } catch (_) {}
+    }
+  }
+}
+
+exports.ReadStream = ReadStream
+exports.ReadStreamSync = ReadStreamSync
+
+exports.WriteStream = WriteStream
+exports.WriteStreamSync = WriteStreamSync
diff --git a/node_modules/fs-minipass/package.json b/node_modules/fs-minipass/package.json
new file mode 100644
index 0000000..2f2436c
--- /dev/null
+++ b/node_modules/fs-minipass/package.json
@@ -0,0 +1,39 @@
+{
+  "name": "fs-minipass",
+  "version": "2.1.0",
+  "main": "index.js",
+  "scripts": {
+    "test": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags"
+  },
+  "keywords": [],
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "ISC",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/npm/fs-minipass.git"
+  },
+  "bugs": {
+    "url": "https://github.com/npm/fs-minipass/issues"
+  },
+  "homepage": "https://github.com/npm/fs-minipass#readme",
+  "description": "fs read and write streams based on minipass",
+  "dependencies": {
+    "minipass": "^3.0.0"
+  },
+  "devDependencies": {
+    "mutate-fs": "^2.0.1",
+    "tap": "^14.6.4"
+  },
+  "files": [
+    "index.js"
+  ],
+  "tap": {
+    "check-coverage": true
+  },
+  "engines": {
+    "node": ">= 8"
+  }
+}
diff --git a/node_modules/fs.realpath/LICENSE b/node_modules/fs.realpath/LICENSE
new file mode 100644
index 0000000..5bd884c
--- /dev/null
+++ b/node_modules/fs.realpath/LICENSE
@@ -0,0 +1,43 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+----
+
+This library bundles a version of the `fs.realpath` and `fs.realpathSync`
+methods from Node.js v0.10 under the terms of the Node.js MIT license.
+
+Node's license follows, also included at the header of `old.js` which contains
+the licensed code:
+
+  Copyright Joyent, Inc. and other Node contributors.
+
+  Permission is hereby granted, free of charge, to any person obtaining a
+  copy of this software and associated documentation files (the "Software"),
+  to deal in the Software without restriction, including without limitation
+  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+  and/or sell copies of the Software, and to permit persons to whom the
+  Software is furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+  DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/fs.realpath/README.md b/node_modules/fs.realpath/README.md
new file mode 100644
index 0000000..a42ceac
--- /dev/null
+++ b/node_modules/fs.realpath/README.md
@@ -0,0 +1,33 @@
+# fs.realpath
+
+A backwards-compatible fs.realpath for Node v6 and above
+
+In Node v6, the JavaScript implementation of fs.realpath was replaced
+with a faster (but less resilient) native implementation.  That raises
+new and platform-specific errors and cannot handle long or excessively
+symlink-looping paths.
+
+This module handles those cases by detecting the new errors and
+falling back to the JavaScript implementation.  On versions of Node
+prior to v6, it has no effect.
+
+## USAGE
+
+```js
+var rp = require('fs.realpath')
+
+// async version
+rp.realpath(someLongAndLoopingPath, function (er, real) {
+  // the ELOOP was handled, but it was a bit slower
+})
+
+// sync version
+var real = rp.realpathSync(someLongAndLoopingPath)
+
+// monkeypatch at your own risk!
+// This replaces the fs.realpath/fs.realpathSync builtins
+rp.monkeypatch()
+
+// un-do the monkeypatching
+rp.unmonkeypatch()
+```
diff --git a/node_modules/fs.realpath/index.js b/node_modules/fs.realpath/index.js
new file mode 100644
index 0000000..b09c7c7
--- /dev/null
+++ b/node_modules/fs.realpath/index.js
@@ -0,0 +1,66 @@
+module.exports = realpath
+realpath.realpath = realpath
+realpath.sync = realpathSync
+realpath.realpathSync = realpathSync
+realpath.monkeypatch = monkeypatch
+realpath.unmonkeypatch = unmonkeypatch
+
+var fs = require('fs')
+var origRealpath = fs.realpath
+var origRealpathSync = fs.realpathSync
+
+var version = process.version
+var ok = /^v[0-5]\./.test(version)
+var old = require('./old.js')
+
+function newError (er) {
+  return er && er.syscall === 'realpath' && (
+    er.code === 'ELOOP' ||
+    er.code === 'ENOMEM' ||
+    er.code === 'ENAMETOOLONG'
+  )
+}
+
+function realpath (p, cache, cb) {
+  if (ok) {
+    return origRealpath(p, cache, cb)
+  }
+
+  if (typeof cache === 'function') {
+    cb = cache
+    cache = null
+  }
+  origRealpath(p, cache, function (er, result) {
+    if (newError(er)) {
+      old.realpath(p, cache, cb)
+    } else {
+      cb(er, result)
+    }
+  })
+}
+
+function realpathSync (p, cache) {
+  if (ok) {
+    return origRealpathSync(p, cache)
+  }
+
+  try {
+    return origRealpathSync(p, cache)
+  } catch (er) {
+    if (newError(er)) {
+      return old.realpathSync(p, cache)
+    } else {
+      throw er
+    }
+  }
+}
+
+function monkeypatch () {
+  fs.realpath = realpath
+  fs.realpathSync = realpathSync
+}
+
+function unmonkeypatch () {
+  fs.realpath = origRealpath
+  fs.realpathSync = origRealpathSync
+}
diff --git a/node_modules/fs.realpath/old.js b/node_modules/fs.realpath/old.js
new file mode 100644
index 0000000..b40305e
--- /dev/null
+++ b/node_modules/fs.realpath/old.js
@@ -0,0 +1,303 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var pathModule = require('path');
+var isWindows = process.platform === 'win32';
+var fs = require('fs');
+
+// JavaScript implementation of realpath, ported from node pre-v6
+
+var DEBUG = process.env.NODE_DEBUG && /fs/.test(process.env.NODE_DEBUG);
+
+function rethrow() {
+  // Only enable in debug mode. A backtrace uses ~1000 bytes of heap space and
+  // is fairly slow to generate.
+  var callback;
+  if (DEBUG) {
+    var backtrace = new Error;
+    callback = debugCallback;
+  } else
+    callback = missingCallback;
+
+  return callback;
+
+  function debugCallback(err) {
+    if (err) {
+      backtrace.message = err.message;
+      err = backtrace;
+      missingCallback(err);
+    }
+  }
+
+  function missingCallback(err) {
+    if (err) {
+      if (process.throwDeprecation)
+        throw err;  // Forgot a callback but don't know where? Use NODE_DEBUG=fs
+      else if (!process.noDeprecation) {
+        var msg = 'fs: missing callback ' + (err.stack || err.message);
+        if (process.traceDeprecation)
+          console.trace(msg);
+        else
+          console.error(msg);
+      }
+    }
+  }
+}
+
+function maybeCallback(cb) {
+  return typeof cb === 'function' ? cb : rethrow();
+}
+
+var normalize = pathModule.normalize;
+
+// Regexp that finds the next partion of a (partial) path
+// result is [base_with_slash, base], e.g. ['somedir/', 'somedir']
+if (isWindows) {
+  var nextPartRe = /(.*?)(?:[\/\\]+|$)/g;
+} else {
+  var nextPartRe = /(.*?)(?:[\/]+|$)/g;
+}
+
+// Regex to find the device root, including trailing slash. E.g. 'c:\\'.
+if (isWindows) {
+  var splitRootRe = /^(?:[a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/][^\\\/]+)?[\\\/]*/;
+} else {
+  var splitRootRe = /^[\/]*/;
+}
+
+exports.realpathSync = function realpathSync(p, cache) {
+  // make p is absolute
+  p = pathModule.resolve(p);
+
+  if (cache && Object.prototype.hasOwnProperty.call(cache, p)) {
+    return cache[p];
+  }
+
+  var original = p,
+      seenLinks = {},
+      knownHard = {};
+
+  // current character position in p
+  var pos;
+  // the partial path so far, including a trailing slash if any
+  var current;
+  // the partial path without a trailing slash (except when pointing at a root)
+  var base;
+  // the partial path scanned in the previous round, with slash
+  var previous;
+
+  start();
+
+  function start() {
+    // Skip over roots
+    var m = splitRootRe.exec(p);
+    pos = m[0].length;
+    current = m[0];
+    base = m[0];
+    previous = '';
+
+    // On windows, check that the root exists. On unix there is no need.
+    if (isWindows && !knownHard[base]) {
+      fs.lstatSync(base);
+      knownHard[base] = true;
+    }
+  }
+
+  // walk down the path, swapping out linked pathparts for their real
+  // values
+  // NB: p.length changes.
+  while (pos < p.length) {
+    // find the next part
+    nextPartRe.lastIndex = pos;
+    var result = nextPartRe.exec(p);
+    previous = current;
+    current += result[0];
+    base = previous + result[1];
+    pos = nextPartRe.lastIndex;
+
+    // continue if not a symlink
+    if (knownHard[base] || (cache && cache[base] === base)) {
+      continue;
+    }
+
+    var resolvedLink;
+    if (cache && Object.prototype.hasOwnProperty.call(cache, base)) {
+      // some known symbolic link.  no need to stat again.
+      resolvedLink = cache[base];
+    } else {
+      var stat = fs.lstatSync(base);
+      if (!stat.isSymbolicLink()) {
+        knownHard[base] = true;
+        if (cache) cache[base] = base;
+        continue;
+      }
+
+      // read the link if it wasn't read before
+      // dev/ino always return 0 on windows, so skip the check.
+      var linkTarget = null;
+      if (!isWindows) {
+        var id = stat.dev.toString(32) + ':' + stat.ino.toString(32);
+        if (seenLinks.hasOwnProperty(id)) {
+          linkTarget = seenLinks[id];
+        }
+      }
+      if (linkTarget === null) {
+        fs.statSync(base);
+        linkTarget = fs.readlinkSync(base);
+      }
+      resolvedLink = pathModule.resolve(previous, linkTarget);
+      // track this, if given a cache.
+      if (cache) cache[base] = resolvedLink;
+      if (!isWindows) seenLinks[id] = linkTarget;
+    }
+
+    // resolve the link, then start over
+    p = pathModule.resolve(resolvedLink, p.slice(pos));
+    start();
+  }
+
+  if (cache) cache[original] = p;
+
+  return p;
+};
+
+
+exports.realpath = function realpath(p, cache, cb) {
+  if (typeof cb !== 'function') {
+    cb = maybeCallback(cache);
+    cache = null;
+  }
+
+  // make p is absolute
+  p = pathModule.resolve(p);
+
+  if (cache && Object.prototype.hasOwnProperty.call(cache, p)) {
+    return process.nextTick(cb.bind(null, null, cache[p]));
+  }
+
+  var original = p,
+      seenLinks = {},
+      knownHard = {};
+
+  // current character position in p
+  var pos;
+  // the partial path so far, including a trailing slash if any
+  var current;
+  // the partial path without a trailing slash (except when pointing at a root)
+  var base;
+  // the partial path scanned in the previous round, with slash
+  var previous;
+
+  start();
+
+  function start() {
+    // Skip over roots
+    var m = splitRootRe.exec(p);
+    pos = m[0].length;
+    current = m[0];
+    base = m[0];
+    previous = '';
+
+    // On windows, check that the root exists. On unix there is no need.
+    if (isWindows && !knownHard[base]) {
+      fs.lstat(base, function(err) {
+        if (err) return cb(err);
+        knownHard[base] = true;
+        LOOP();
+      });
+    } else {
+      process.nextTick(LOOP);
+    }
+  }
+
+  // walk down the path, swapping out linked pathparts for their real
+  // values
+  function LOOP() {
+    // stop if scanned past end of path
+    if (pos >= p.length) {
+      if (cache) cache[original] = p;
+      return cb(null, p);
+    }
+
+    // find the next part
+    nextPartRe.lastIndex = pos;
+    var result = nextPartRe.exec(p);
+    previous = current;
+    current += result[0];
+    base = previous + result[1];
+    pos = nextPartRe.lastIndex;
+
+    // continue if not a symlink
+    if (knownHard[base] || (cache && cache[base] === base)) {
+      return process.nextTick(LOOP);
+    }
+
+    if (cache && Object.prototype.hasOwnProperty.call(cache, base)) {
+      // known symbolic link.  no need to stat again.
+      return gotResolvedLink(cache[base]);
+    }
+
+    return fs.lstat(base, gotStat);
+  }
+
+  function gotStat(err, stat) {
+    if (err) return cb(err);
+
+    // if not a symlink, skip to the next path part
+    if (!stat.isSymbolicLink()) {
+      knownHard[base] = true;
+      if (cache) cache[base] = base;
+      return process.nextTick(LOOP);
+    }
+
+    // stat & read the link if not read before
+    // call gotTarget as soon as the link target is known
+    // dev/ino always return 0 on windows, so skip the check.
+    if (!isWindows) {
+      var id = stat.dev.toString(32) + ':' + stat.ino.toString(32);
+      if (seenLinks.hasOwnProperty(id)) {
+        return gotTarget(null, seenLinks[id], base);
+      }
+    }
+    fs.stat(base, function(err) {
+      if (err) return cb(err);
+
+      fs.readlink(base, function(err, target) {
+        if (!isWindows) seenLinks[id] = target;
+        gotTarget(err, target);
+      });
+    });
+  }
+
+  function gotTarget(err, target, base) {
+    if (err) return cb(err);
+
+    var resolvedLink = pathModule.resolve(previous, target);
+    if (cache) cache[base] = resolvedLink;
+    gotResolvedLink(resolvedLink);
+  }
+
+  function gotResolvedLink(resolvedLink) {
+    // resolve the link, then start over
+    p = pathModule.resolve(resolvedLink, p.slice(pos));
+    start();
+  }
+};
diff --git a/node_modules/fs.realpath/package.json b/node_modules/fs.realpath/package.json
new file mode 100644
index 0000000..3edc57d
--- /dev/null
+++ b/node_modules/fs.realpath/package.json
@@ -0,0 +1,26 @@
+{
+  "name": "fs.realpath",
+  "version": "1.0.0",
+  "description": "Use node's fs.realpath, but fall back to the JS implementation if the native one fails",
+  "main": "index.js",
+  "dependencies": {},
+  "devDependencies": {},
+  "scripts": {
+    "test": "tap test/*.js --cov"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/isaacs/fs.realpath.git"
+  },
+  "keywords": [
+    "realpath",
+    "fs",
+    "polyfill"
+  ],
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "ISC",
+  "files": [
+    "old.js",
+    "index.js"
+  ]
+}
diff --git a/node_modules/gauge/CHANGELOG.md b/node_modules/gauge/CHANGELOG.md
new file mode 100644
index 0000000..3c5cc91
--- /dev/null
+++ b/node_modules/gauge/CHANGELOG.md
@@ -0,0 +1,163 @@
+### v3.0.0
+* Drops support for Node v4, v6, v7 and v8
+
+### v2.7.4
+
+* Reset colors prior to ending a line, to eliminate flicker when a line
+  is trucated between start and end color sequences.
+
+### v2.7.3
+
+* Only create our onExit handler when we're enabled and remove it when we're
+  disabled.  This stops us from creating multiple onExit handlers when
+  multiple gauge objects are being used.
+* Fix bug where if a theme name were given instead of a theme object, it
+  would crash.
+* Remove supports-color because it's not actually used.  Uhm.  Yes, I just
+  updated it.  >.>
+
+### v2.7.2
+
+* Use supports-color instead of has-color (as the module has been renamed)
+
+### v2.7.1
+
+* Bug fix: Calls to show/pulse while the progress bar is disabled should still
+  update our internal representation of what would be shown should it be enabled.
+
+### v2.7.0
+
+* New feature: Add new `isEnabled` method to allow introspection of the gauge's
+  "enabledness" as controlled by `.enable()` and `.disable()`.
+
+### v2.6.0
+
+* Bug fix: Don't run the code associated with `enable`/`disable` if the gauge
+  is already enabled or disabled respectively.  This prevents leaking event
+  listeners, amongst other weirdness.
+* New feature: Template items can have default values that will be used if no
+  value was otherwise passed in.
+
+### v2.5.3
+
+* Default to `enabled` only if we have a tty.  Users can always override
+  this by passing in the `enabled` option explicitly or by calling calling
+  `gauge.enable()`.
+
+### v2.5.2
+
+* Externalized `./console-strings.js` into `console-control-strings`.
+
+### v2.5.1
+
+* Update to `signal-exit@3.0.0`, which fixes a compatibility bug with the
+  node profiler.
+* [#39](https://github.com/iarna/gauge/pull/39) Fix tests on 0.10 and add
+  a missing devDependency. ([@helloyou2012](https://github.com/helloyou2012))
+
+### v2.5.0
+
+* Add way to programmatically fetch a list of theme names in a themeset
+  (`Themeset.getThemeNames`).
+
+### v2.4.0
+
+* Add support for setting themesets on existing gauge objects.
+* Add post-IO callback to `gauge.hide()` as it is somtetimes necessary when
+  your terminal is interleaving output from multiple filehandles (ie, stdout
+  & stderr).
+
+### v2.3.1
+
+* Fix a refactor bug in setTheme where it wasn't accepting the various types
+  of args it should.
+
+### v2.3.0
+
+#### FEATURES
+
+* Add setTemplate & setTheme back in.
+* Add support for named themes, you can now ask for things like 'colorASCII'
+  and 'brailleSpinner'.  Of course, you can still pass in theme objects.
+  Additionally you can now pass in an object with `hasUnicode`, `hasColor` and
+  `platform` keys in order to override our guesses as to those values when
+  selecting a default theme from the themeset.
+* Make the output stream optional (it defaults to `process.stderr` now).
+* Add `setWriteTo(stream[, tty])` to change the output stream and,
+  optionally, tty.
+
+#### BUG FIXES & REFACTORING
+
+* Abort the display phase early if we're supposed to be hidden and we are.
+* Stop printing a bunch of spaces at the end of lines, since we're already
+  using an erase-to-end-of-line code anyway.
+* The unicode themes were missing the subsection separator.
+
+### v2.2.1
+
+* Fix image in readme
+
+### v2.2.0
+
+* All new themes API– reference themes by name and pass in custom themes and
+  themesets (themesets get platform support autodetection done on them to
+  select the best theme).  Theme mixins let you add features to all existing
+  themes.
+* Much, much improved test coverage.
+
+### v2.1.0
+
+* Got rid of ░ in the default platform, noUnicode, hasColor theme.  Thanks
+  to @yongtw123 for pointing out this had snuck in.
+* Fiddled with the demo output to make it easier to see the spinner spin. Also
+  added prints before each platforms test output.
+* I forgot to include `signal-exit` in our deps.  <.< Thank you @KenanY for
+  finding this. Then I was lazy and made a new commit instead of using his
+  PR. Again, thank you for your patience @KenenY.
+* Drastically speed up travis testing.
+* Add a small javascript demo (demo.js) for showing off the various themes
+  (and testing them on diff platforms).
+* Change: The subsection separator from ⁄ and / (different chars) to >.
+* Fix crasher: A show or pulse without a label would cause the template renderer
+  to complain about a missing value.
+* New feature: Add the ability to disable the clean-up-on-exit behavior.
+  Not something I expect to be widely desirable, but important if you have
+  multiple distinct gauge instances in your app.
+* Use our own color support detection.
+  The `has-color` module proved too magic for my needs, making assumptions
+  as to which stream we write to and reading command line arguments.
+
+### v2.0.0
+
+This is a major rewrite of the internals.  Externally there are fewer
+changes:
+
+* On node>0.8 gauge object now prints updates at a fixed rate.  This means
+  that when you call `show` it may wate up to `updateInterval` ms before it
+  actually prints an update.  You override this behavior with the
+  `fixedFramerate` option.
+* The gauge object now keeps the cursor hidden as long as it's enabled and
+  shown.
+* The constructor's arguments have changed, now it takes a mandatory output
+  stream and an optional options object.  The stream no longer needs to be
+  an `ansi`ified stream, although it can be if you want (but we won't make
+  use of its special features).
+* Previously the gauge was disabled by default if `process.stdout` wasn't a
+  tty.  Now it always defaults to enabled.  If you want the previous
+  behavior set the `enabled` option to `process.stdout.isTTY`.
+* The constructor's options have changed– see the docs for details.
+* Themes are entirely different.  If you were using a custom theme, or
+  referring to one directly (eg via `Gauge.unicode` or `Gauge.ascii`) then
+  you'll need to change your code.  You can get the equivalent of the latter
+  with:
+  ```
+  var themes = require('gauge/themes')
+  var unicodeTheme = themes(true, true) // returns the color unicode theme for your platform
+  ```
+  The default themes no longer use any ambiguous width characters, so even
+  if you choose to display those as wide your progress bar should still
+  display correctly.
+* Templates are entirely different and if you were using a custom one, you
+  should consult the documentation to learn how to recreate it.  If you were
+  using the default, be aware that it has changed and the result looks quite
+  a bit different.
diff --git a/node_modules/gauge/LICENSE b/node_modules/gauge/LICENSE
new file mode 100644
index 0000000..e756052
--- /dev/null
+++ b/node_modules/gauge/LICENSE
@@ -0,0 +1,13 @@
+Copyright (c) 2014, Rebecca Turner <me@re-becca.org>
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/gauge/README.md b/node_modules/gauge/README.md
new file mode 100644
index 0000000..4757649
--- /dev/null
+++ b/node_modules/gauge/README.md
@@ -0,0 +1,402 @@
+gauge
+=====
+
+A nearly stateless terminal based horizontal gauge / progress bar.
+
+```javascript
+var Gauge = require("gauge")
+
+var gauge = new Gauge()
+
+gauge.show("working…", 0)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.25) }, 500)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.50) }, 1000)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.75) }, 1500)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.99) }, 2000)
+setTimeout(() => gauge.hide(), 2300)
+```
+
+See also the [demos](demo.js):
+
+![](gauge-demo.gif)
+
+
+### CHANGES FROM 1.x
+
+Gauge 2.x is breaking release, please see the [changelog] for details on
+what's changed if you were previously a user of this module.
+
+[changelog]: CHANGELOG.md
+
+### THE GAUGE CLASS
+
+This is the typical interface to the module– it provides a pretty
+fire-and-forget interface to displaying your status information.
+
+```
+var Gauge = require("gauge")
+
+var gauge = new Gauge([stream], [options])
+```
+
+* **stream** – *(optional, default STDERR)* A stream that progress bar
+  updates are to be written to.  Gauge honors backpressure and will pause
+  most writing if it is indicated.
+* **options** – *(optional)* An option object.
+
+Constructs a new gauge. Gauges are drawn on a single line, and are not drawn
+if **stream** isn't a tty and a tty isn't explicitly provided.
+
+If **stream** is a terminal or if you pass in **tty** to **options** then we
+will detect terminal resizes and redraw to fit.  We do this by watching for
+`resize` events on the tty.  (To work around a bug in versions of Node prior
+to 2.5.0, we watch for them on stdout if the tty is stderr.) Resizes to
+larger window sizes will be clean, but shrinking the window will always
+result in some cruft.
+
+**IMPORTANT:** If you previously were passing in a non-tty stream but you still
+want output (for example, a stream wrapped by the `ansi` module) then you
+need to pass in the **tty** option below, as `gauge` needs access to
+the underlying tty in order to do things like terminal resizes and terminal
+width detection.
+
+The **options** object can have the following properties, all of which are
+optional:
+
+* **updateInterval**: How often gauge updates should be drawn, in milliseconds.
+* **fixedFramerate**: Defaults to false on node 0.8, true on everything
+  else.  When this is true a timer is created to trigger once every
+  `updateInterval` ms, when false, updates are printed as soon as they come
+  in but updates more often than `updateInterval` are ignored.  The reason
+  0.8 doesn't have this set to true is that it can't `unref` its timer and
+  so it would stop your program from exiting– if you want to use this
+  feature with 0.8 just make sure you call `gauge.disable()` before you
+  expect your program to exit.
+* **themes**: A themeset to use when selecting the theme to use. Defaults
+  to `gauge/themes`, see the [themes] documentation for details.
+* **theme**: Select a theme for use, it can be a:
+  * Theme object, in which case the **themes** is not used.
+  * The name of a theme, which will be looked up in the current *themes*
+    object.
+  * A configuration object with any of `hasUnicode`, `hasColor` or
+    `platform` keys, which if will be used to override our guesses when making
+    a default theme selection.
+
+  If no theme is selected then a default is picked using a combination of our
+  best guesses at your OS, color support and unicode support.
+* **template**: Describes what you want your gauge to look like.  The
+  default is what npm uses.  Detailed [documentation] is later in this
+  document.
+* **hideCursor**: Defaults to true.  If true, then the cursor will be hidden
+  while the gauge is displayed.
+* **tty**: The tty that you're ultimately writing to.  Defaults to the same
+  as **stream**.  This is used for detecting the width of the terminal and
+  resizes. The width used is `tty.columns - 1`. If no tty is available then
+  a width of `79` is assumed.
+* **enabled**: Defaults to true if `tty` is a TTY, false otherwise.  If true
+  the gauge starts enabled.  If disabled then all update commands are
+  ignored and no gauge will be printed until you call `.enable()`.
+* **Plumbing**: The class to use to actually generate the gauge for
+  printing.  This defaults to `require('gauge/plumbing')` and ordinarily you
+  shouldn't need to override this.
+* **cleanupOnExit**: Defaults to true. Ordinarily we register an exit
+  handler to make sure your cursor is turned back on and the progress bar
+  erased when your process exits, even if you Ctrl-C out or otherwise exit
+  unexpectedly. You can disable this and it won't register the exit handler.
+
+[has-unicode]: https://www.npmjs.com/package/has-unicode
+[themes]: #themes
+[documentation]: #templates
+
+#### `gauge.show(section | status, [completed])`
+
+The first argument is either the section, the name of the current thing
+contributing to progress, or an object with keys like **section**,
+**subsection** & **completed** (or any others you have types for in a custom
+template).  If you don't want to update or set any of these you can pass
+`null` and it will be ignored.
+
+The second argument is the percent completed as a value between 0 and 1.
+Without it, completion is just not updated. You'll also note that completion
+can be passed in as part of a status object as the first argument. If both
+it and the completed argument are passed in, the completed argument wins.
+
+#### `gauge.hide([cb])`
+
+Removes the gauge from the terminal.  Optionally, callback `cb` after IO has
+had an opportunity to happen (currently this just means after `setImmediate`
+has called back.)
+
+It turns out this is important when you're pausing the progress bar on one
+filehandle and printing to another– otherwise (with a big enough print) node
+can end up printing the "end progress bar" bits to the progress bar filehandle
+while other stuff is printing to another filehandle. These getting interleaved
+can cause corruption in some terminals.
+
+#### `gauge.pulse([subsection])`
+
+* **subsection** – *(optional)* The specific thing that triggered this pulse
+
+Spins the spinner in the gauge to show output.  If **subsection** is
+included then it will be combined with the last name passed to `gauge.show`.
+
+#### `gauge.disable()`
+
+Hides the gauge and ignores further calls to `show` or `pulse`.
+
+#### `gauge.enable()`
+
+Shows the gauge and resumes updating when `show` or `pulse` is called.
+
+#### `gauge.isEnabled()`
+
+Returns true if the gauge is enabled.
+
+#### `gauge.setThemeset(themes)`
+
+Change the themeset to select a theme from. The same as the `themes` option
+used in the constructor. The theme will be reselected from this themeset.
+
+#### `gauge.setTheme(theme)`
+
+Change the active theme, will be displayed with the next show or pulse. This can be:
+
+* Theme object, in which case the **themes** is not used.
+* The name of a theme, which will be looked up in the current *themes*
+  object.
+* A configuration object with any of `hasUnicode`, `hasColor` or
+  `platform` keys, which if will be used to override our guesses when making
+  a default theme selection.
+
+If no theme is selected then a default is picked using a combination of our
+best guesses at your OS, color support and unicode support.
+
+#### `gauge.setTemplate(template)`
+
+Change the active template, will be displayed with the next show or pulse
+
+### Tracking Completion
+
+If you have more than one thing going on that you want to track completion
+of, you may find the related [are-we-there-yet] helpful.  It's `change`
+event can be wired up to the `show` method to get a more traditional
+progress bar interface.
+
+[are-we-there-yet]: https://www.npmjs.com/package/are-we-there-yet
+
+### THEMES
+
+```
+var themes = require('gauge/themes')
+
+// fetch the default color unicode theme for this platform
+var ourTheme = themes({hasUnicode: true, hasColor: true})
+
+// fetch the default non-color unicode theme for osx
+var ourTheme = themes({hasUnicode: true, hasColor: false, platform: 'darwin'})
+
+// create a new theme based on the color ascii theme for this platform
+// that brackets the progress bar with arrows
+var ourTheme = themes.newTheme(themes({hasUnicode: false, hasColor: true}), {
+  preProgressbar: '→',
+  postProgressbar: '←'
+})
+```
+
+The object returned by `gauge/themes` is an instance of the `ThemeSet` class.
+
+```
+var ThemeSet = require('gauge/theme-set')
+var themes = new ThemeSet()
+// or
+var themes = require('gauge/themes')
+var mythemes = themes.newThemeSet() // creates a new themeset based on the default themes
+```
+
+#### themes(opts)
+#### themes.getDefault(opts)
+
+Theme objects are a function that fetches the default theme based on
+platform, unicode and color support.
+
+Options is an object with the following properties:
+
+* **hasUnicode** - If true, fetch a unicode theme, if no unicode theme is
+  available then a non-unicode theme will be used.
+* **hasColor** - If true, fetch a color theme, if no color theme is
+  available a non-color theme will be used.
+* **platform** (optional) - Defaults to `process.platform`.  If no
+  platform match is available then `fallback` is used instead.
+
+If no compatible theme can be found then an error will be thrown with a
+`code` of `EMISSINGTHEME`.
+
+#### themes.addTheme(themeName, themeObj)
+#### themes.addTheme(themeName, [parentTheme], newTheme)
+
+Adds a named theme to the themeset.  You can pass in either a theme object,
+as returned by `themes.newTheme` or the arguments you'd pass to
+`themes.newTheme`.
+
+#### themes.getThemeNames()
+
+Return a list of all of the names of the themes in this themeset. Suitable
+for use in `themes.getTheme(…)`.
+
+#### themes.getTheme(name)
+
+Returns the theme object from this theme set named `name`.
+
+If `name` does not exist in this themeset an error will be thrown with
+a `code` of `EMISSINGTHEME`.
+
+#### themes.setDefault([opts], themeName)
+
+`opts` is an object with the following properties.
+
+* **platform** - Defaults to `'fallback'`.  If your theme is platform
+  specific, specify that here with the platform from `process.platform`, eg,
+  `win32`, `darwin`, etc.
+* **hasUnicode** - Defaults to `false`. If your theme uses unicode you
+  should set this to true.
+* **hasColor** - Defaults to `false`.  If your theme uses color you should
+  set this to true.
+
+`themeName` is the name of the theme (as given to `addTheme`) to use for
+this set of `opts`.
+
+#### themes.newTheme([parentTheme,] newTheme)
+
+Create a new theme object based on `parentTheme`.  If no `parentTheme` is
+provided then a minimal parentTheme that defines functions for rendering the
+activity indicator (spinner) and progress bar will be defined. (This
+fallback parent is defined in `gauge/base-theme`.)
+
+newTheme should be a bare object– we'll start by discussing the properties
+defined by the default themes:
+
+* **preProgressbar** - displayed prior to the progress bar, if the progress
+  bar is displayed.
+* **postProgressbar** - displayed after the progress bar, if the progress bar
+  is displayed.
+* **progressBarTheme** - The subtheme passed through to the progress bar
+  renderer, it's an object with `complete` and `remaining` properties
+  that are the strings you want repeated for those sections of the progress
+  bar.
+* **activityIndicatorTheme** - The theme for the activity indicator (spinner),
+  this can either be a string, in which each character is a different step, or
+  an array of strings.
+* **preSubsection** - Displayed as a separator between the `section` and
+  `subsection` when the latter is printed.
+
+More generally, themes can have any value that would be a valid value when rendering
+templates. The properties in the theme are used when their name matches a type in
+the template. Their values can be:
+
+* **strings & numbers** - They'll be included as is
+* **function (values, theme, width)** - Should return what you want in your output.
+  *values* is an object with values provided via `gauge.show`,
+  *theme* is the theme specific to this item (see below) or this theme object,
+  and *width* is the number of characters wide your result should be.
+
+There are a couple of special prefixes:
+
+* **pre** - Is shown prior to the property, if its displayed.
+* **post** - Is shown after the property, if its displayed.
+
+And one special suffix:
+
+* **Theme** - Its value is passed to a function-type item as the theme.
+
+#### themes.addToAllThemes(theme)
+
+This *mixes-in* `theme` into all themes currently defined. It also adds it
+to the default parent theme for this themeset, so future themes added to
+this themeset will get the values from `theme` by default.
+
+#### themes.newThemeSet()
+
+Copy the current themeset into a new one.  This allows you to easily inherit
+one themeset from another.
+
+### TEMPLATES
+
+A template is an array of objects and strings that, after being evaluated,
+will be turned into the gauge line.  The default template is:
+
+```javascript
+[
+    {type: 'progressbar', length: 20},
+    {type: 'activityIndicator', kerning: 1, length: 1},
+    {type: 'section', kerning: 1, default: ''},
+    {type: 'subsection', kerning: 1, default: ''}
+]
+```
+
+The various template elements can either be **plain strings**, in which case they will
+be be included verbatum in the output, or objects with the following properties:
+
+* *type* can be any of the following plus any keys you pass into `gauge.show` plus
+  any keys you have on a custom theme.
+  * `section` – What big thing you're working on now.
+  * `subsection` – What component of that thing is currently working.
+  * `activityIndicator` – Shows a spinner using the `activityIndicatorTheme`
+    from your active theme.
+  * `progressbar` – A progress bar representing your current `completed`
+    using the `progressbarTheme` from your active theme.
+* *kerning* – Number of spaces that must be between this item and other
+  items, if this item is displayed at all.
+* *maxLength* – The maximum length for this element. If its value is longer it
+  will be truncated.
+* *minLength* – The minimum length for this element. If its value is shorter it
+  will be padded according to the *align* value.
+* *align* – (Default: left) Possible values "left", "right" and "center". Works
+  as you'd expect from word processors.
+* *length* – Provides a single value for both *minLength* and *maxLength*. If both
+  *length* and *minLength or *maxLength* are specified then the latter take precedence.
+* *value* – A literal value to use for this template item.
+* *default* – A default value to use for this template item if a value
+  wasn't otherwise passed in.
+
+### PLUMBING
+
+This is the super simple, assume nothing, do no magic internals used by gauge to
+implement its ordinary interface.
+
+```
+var Plumbing = require('gauge/plumbing')
+var gauge = new Plumbing(theme, template, width)
+```
+
+* **theme**: The theme to use.
+* **template**: The template to use.
+* **width**: How wide your gauge should be
+
+#### `gauge.setTheme(theme)`
+
+Change the active theme.
+
+#### `gauge.setTemplate(template)`
+
+Change the active template.
+
+#### `gauge.setWidth(width)`
+
+Change the width to render at.
+
+#### `gauge.hide()`
+
+Return the string necessary to hide the progress bar
+
+#### `gauge.hideCursor()`
+
+Return a string to hide the cursor.
+
+#### `gauge.showCursor()`
+
+Return a string to show the cursor.
+
+#### `gauge.show(status)`
+
+Using `status` for values, render the provided template with the theme and return
+a string that is suitable for printing to update the gauge.
diff --git a/node_modules/gauge/base-theme.js b/node_modules/gauge/base-theme.js
new file mode 100644
index 0000000..0b67638
--- /dev/null
+++ b/node_modules/gauge/base-theme.js
@@ -0,0 +1,14 @@
+'use strict'
+var spin = require('./spin.js')
+var progressBar = require('./progress-bar.js')
+
+module.exports = {
+  activityIndicator: function (values, theme, width) {
+    if (values.spun == null) return
+    return spin(theme, values.spun)
+  },
+  progressbar: function (values, theme, width) {
+    if (values.completed == null) return
+    return progressBar(theme, width, values.completed)
+  }
+}
diff --git a/node_modules/gauge/error.js b/node_modules/gauge/error.js
new file mode 100644
index 0000000..d9914ba
--- /dev/null
+++ b/node_modules/gauge/error.js
@@ -0,0 +1,24 @@
+'use strict'
+var util = require('util')
+
+var User = exports.User = function User (msg) {
+  var err = new Error(msg)
+  Error.captureStackTrace(err, User)
+  err.code = 'EGAUGE'
+  return err
+}
+
+exports.MissingTemplateValue = function MissingTemplateValue (item, values) {
+  var err = new User(util.format('Missing template value "%s"', item.type))
+  Error.captureStackTrace(err, MissingTemplateValue)
+  err.template = item
+  err.values = values
+  return err
+}
+
+exports.Internal = function Internal (msg) {
+  var err = new Error(msg)
+  Error.captureStackTrace(err, Internal)
+  err.code = 'EGAUGEINTERNAL'
+  return err
+}
diff --git a/node_modules/gauge/has-color.js b/node_modules/gauge/has-color.js
new file mode 100644
index 0000000..16cba0e
--- /dev/null
+++ b/node_modules/gauge/has-color.js
@@ -0,0 +1,4 @@
+'use strict'
+var colorSupport = require('color-support')
+
+module.exports = colorSupport().hasBasic
diff --git a/node_modules/gauge/index.js b/node_modules/gauge/index.js
new file mode 100644
index 0000000..87a4bb9
--- /dev/null
+++ b/node_modules/gauge/index.js
@@ -0,0 +1,233 @@
+'use strict'
+var Plumbing = require('./plumbing.js')
+var hasUnicode = require('has-unicode')
+var hasColor = require('./has-color.js')
+var onExit = require('signal-exit')
+var defaultThemes = require('./themes')
+var setInterval = require('./set-interval.js')
+var process = require('./process.js')
+var setImmediate = require('./set-immediate')
+
+module.exports = Gauge
+
+function callWith (obj, method) {
+  return function () {
+    return method.call(obj)
+  }
+}
+
+function Gauge (arg1, arg2) {
+  var options, writeTo
+  if (arg1 && arg1.write) {
+    writeTo = arg1
+    options = arg2 || {}
+  } else if (arg2 && arg2.write) {
+    writeTo = arg2
+    options = arg1 || {}
+  } else {
+    writeTo = process.stderr
+    options = arg1 || arg2 || {}
+  }
+
+  this._status = {
+    spun: 0,
+    section: '',
+    subsection: ''
+  }
+  this._paused = false // are we paused for back pressure?
+  this._disabled = true // are all progress bar updates disabled?
+  this._showing = false // do we WANT the progress bar on screen
+  this._onScreen = false // IS the progress bar on screen
+  this._needsRedraw = false // should we print something at next tick?
+  this._hideCursor = options.hideCursor == null ? true : options.hideCursor
+  this._fixedFramerate = options.fixedFramerate == null
+    ? !(/^v0\.8\./.test(process.version))
+    : options.fixedFramerate
+  this._lastUpdateAt = null
+  this._updateInterval = options.updateInterval == null ? 50 : options.updateInterval
+
+  this._themes = options.themes || defaultThemes
+  this._theme = options.theme
+  var theme = this._computeTheme(options.theme)
+  var template = options.template || [
+    {type: 'progressbar', length: 20},
+    {type: 'activityIndicator', kerning: 1, length: 1},
+    {type: 'section', kerning: 1, default: ''},
+    {type: 'subsection', kerning: 1, default: ''}
+  ]
+  this.setWriteTo(writeTo, options.tty)
+  var PlumbingClass = options.Plumbing || Plumbing
+  this._gauge = new PlumbingClass(theme, template, this.getWidth())
+
+  this._$$doRedraw = callWith(this, this._doRedraw)
+  this._$$handleSizeChange = callWith(this, this._handleSizeChange)
+
+  this._cleanupOnExit = options.cleanupOnExit == null || options.cleanupOnExit
+  this._removeOnExit = null
+
+  if (options.enabled || (options.enabled == null && this._tty && this._tty.isTTY)) {
+    this.enable()
+  } else {
+    this.disable()
+  }
+}
+Gauge.prototype = {}
+
+Gauge.prototype.isEnabled = function () {
+  return !this._disabled
+}
+
+Gauge.prototype.setTemplate = function (template) {
+  this._gauge.setTemplate(template)
+  if (this._showing) this._requestRedraw()
+}
+
+Gauge.prototype._computeTheme = function (theme) {
+  if (!theme) theme = {}
+  if (typeof theme === 'string') {
+    theme = this._themes.getTheme(theme)
+  } else if (theme && (Object.keys(theme).length === 0 || theme.hasUnicode != null || theme.hasColor != null)) {
+    var useUnicode = theme.hasUnicode == null ? hasUnicode() : theme.hasUnicode
+    var useColor = theme.hasColor == null ? hasColor : theme.hasColor
+    theme = this._themes.getDefault({hasUnicode: useUnicode, hasColor: useColor, platform: theme.platform})
+  }
+  return theme
+}
+
+Gauge.prototype.setThemeset = function (themes) {
+  this._themes = themes
+  this.setTheme(this._theme)
+}
+
+Gauge.prototype.setTheme = function (theme) {
+  this._gauge.setTheme(this._computeTheme(theme))
+  if (this._showing) this._requestRedraw()
+  this._theme = theme
+}
+
+Gauge.prototype._requestRedraw = function () {
+  this._needsRedraw = true
+  if (!this._fixedFramerate) this._doRedraw()
+}
+
+Gauge.prototype.getWidth = function () {
+  return ((this._tty && this._tty.columns) || 80) - 1
+}
+
+Gauge.prototype.setWriteTo = function (writeTo, tty) {
+  var enabled = !this._disabled
+  if (enabled) this.disable()
+  this._writeTo = writeTo
+  this._tty = tty ||
+    (writeTo === process.stderr && process.stdout.isTTY && process.stdout) ||
+    (writeTo.isTTY && writeTo) ||
+    this._tty
+  if (this._gauge) this._gauge.setWidth(this.getWidth())
+  if (enabled) this.enable()
+}
+
+Gauge.prototype.enable = function () {
+  if (!this._disabled) return
+  this._disabled = false
+  if (this._tty) this._enableEvents()
+  if (this._showing) this.show()
+}
+
+Gauge.prototype.disable = function () {
+  if (this._disabled) return
+  if (this._showing) {
+    this._lastUpdateAt = null
+    this._showing = false
+    this._doRedraw()
+    this._showing = true
+  }
+  this._disabled = true
+  if (this._tty) this._disableEvents()
+}
+
+Gauge.prototype._enableEvents = function () {
+  if (this._cleanupOnExit) {
+    this._removeOnExit = onExit(callWith(this, this.disable))
+  }
+  this._tty.on('resize', this._$$handleSizeChange)
+  if (this._fixedFramerate) {
+    this.redrawTracker = setInterval(this._$$doRedraw, this._updateInterval)
+    if (this.redrawTracker.unref) this.redrawTracker.unref()
+  }
+}
+
+Gauge.prototype._disableEvents = function () {
+  this._tty.removeListener('resize', this._$$handleSizeChange)
+  if (this._fixedFramerate) clearInterval(this.redrawTracker)
+  if (this._removeOnExit) this._removeOnExit()
+}
+
+Gauge.prototype.hide = function (cb) {
+  if (this._disabled) return cb && process.nextTick(cb)
+  if (!this._showing) return cb && process.nextTick(cb)
+  this._showing = false
+  this._doRedraw()
+  cb && setImmediate(cb)
+}
+
+Gauge.prototype.show = function (section, completed) {
+  this._showing = true
+  if (typeof section === 'string') {
+    this._status.section = section
+  } else if (typeof section === 'object') {
+    var sectionKeys = Object.keys(section)
+    for (var ii = 0; ii < sectionKeys.length; ++ii) {
+      var key = sectionKeys[ii]
+      this._status[key] = section[key]
+    }
+  }
+  if (completed != null) this._status.completed = completed
+  if (this._disabled) return
+  this._requestRedraw()
+}
+
+Gauge.prototype.pulse = function (subsection) {
+  this._status.subsection = subsection || ''
+  this._status.spun++
+  if (this._disabled) return
+  if (!this._showing) return
+  this._requestRedraw()
+}
+
+Gauge.prototype._handleSizeChange = function () {
+  this._gauge.setWidth(this._tty.columns - 1)
+  this._requestRedraw()
+}
+
+Gauge.prototype._doRedraw = function () {
+  if (this._disabled || this._paused) return
+  if (!this._fixedFramerate) {
+    var now = Date.now()
+    if (this._lastUpdateAt && now - this._lastUpdateAt < this._updateInterval) return
+    this._lastUpdateAt = now
+  }
+  if (!this._showing && this._onScreen) {
+    this._onScreen = false
+    var result = this._gauge.hide()
+    if (this._hideCursor) {
+      result += this._gauge.showCursor()
+    }
+    return this._writeTo.write(result)
+  }
+  if (!this._showing && !this._onScreen) return
+  if (this._showing && !this._onScreen) {
+    this._onScreen = true
+    this._needsRedraw = true
+    if (this._hideCursor) {
+      this._writeTo.write(this._gauge.hideCursor())
+    }
+  }
+  if (!this._needsRedraw) return
+  if (!this._writeTo.write(this._gauge.show(this._status))) {
+    this._paused = true
+    this._writeTo.on('drain', callWith(this, function () {
+      this._paused = false
+      this._doRedraw()
+    }))
+  }
+}
diff --git a/node_modules/gauge/package.json b/node_modules/gauge/package.json
new file mode 100644
index 0000000..d3f0354
--- /dev/null
+++ b/node_modules/gauge/package.json
@@ -0,0 +1,66 @@
+{
+  "name": "gauge",
+  "version": "3.0.2",
+  "description": "A terminal based horizontal guage",
+  "main": "index.js",
+  "scripts": {
+    "test": "standard && tap test/*.js --coverage"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/iarna/gauge"
+  },
+  "keywords": [
+    "progressbar",
+    "progress",
+    "gauge"
+  ],
+  "author": "Rebecca Turner <me@re-becca.org>",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/npm/gauge/issues"
+  },
+  "homepage": "https://github.com/npm/gauge",
+  "dependencies": {
+    "aproba": "^1.0.3 || ^2.0.0",
+    "color-support": "^1.1.2",
+    "console-control-strings": "^1.0.0",
+    "has-unicode": "^2.0.1",
+    "object-assign": "^4.1.1",
+    "signal-exit": "^3.0.0",
+    "string-width": "^4.2.3",
+    "strip-ansi": "^6.0.1",
+    "wide-align": "^1.1.2"
+  },
+  "devDependencies": {
+    "readable-stream": "^2.0.6",
+    "require-inject": "^1.4.0",
+    "standard": "^11.0.1",
+    "tap": "^12.0.1",
+    "through2": "^2.0.0"
+  },
+  "files": [
+    "base-theme.js",
+    "CHANGELOG.md",
+    "error.js",
+    "has-color.js",
+    "index.js",
+    "LICENSE",
+    "package.json",
+    "plumbing.js",
+    "process.js",
+    "progress-bar.js",
+    "README.md",
+    "render-template.js",
+    "set-immediate.js",
+    "set-interval.js",
+    "spin.js",
+    "template-item.js",
+    "theme-set.js",
+    "themes.js",
+    "wide-truncate.js"
+  ],
+  "engines": {
+    "node": ">=10"
+  }
+}
diff --git a/node_modules/gauge/plumbing.js b/node_modules/gauge/plumbing.js
new file mode 100644
index 0000000..1afb4af
--- /dev/null
+++ b/node_modules/gauge/plumbing.js
@@ -0,0 +1,48 @@
+'use strict'
+var consoleControl = require('console-control-strings')
+var renderTemplate = require('./render-template.js')
+var validate = require('aproba')
+
+var Plumbing = module.exports = function (theme, template, width) {
+  if (!width) width = 80
+  validate('OAN', [theme, template, width])
+  this.showing = false
+  this.theme = theme
+  this.width = width
+  this.template = template
+}
+Plumbing.prototype = {}
+
+Plumbing.prototype.setTheme = function (theme) {
+  validate('O', [theme])
+  this.theme = theme
+}
+
+Plumbing.prototype.setTemplate = function (template) {
+  validate('A', [template])
+  this.template = template
+}
+
+Plumbing.prototype.setWidth = function (width) {
+  validate('N', [width])
+  this.width = width
+}
+
+Plumbing.prototype.hide = function () {
+  return consoleControl.gotoSOL() + consoleControl.eraseLine()
+}
+
+Plumbing.prototype.hideCursor = consoleControl.hideCursor
+
+Plumbing.prototype.showCursor = consoleControl.showCursor
+
+Plumbing.prototype.show = function (status) {
+  var values = Object.create(this.theme)
+  for (var key in status) {
+    values[key] = status[key]
+  }
+
+  return renderTemplate(this.width, this.template, values).trim() +
+         consoleControl.color('reset') +
+         consoleControl.eraseLine() + consoleControl.gotoSOL()
+}
diff --git a/node_modules/gauge/process.js b/node_modules/gauge/process.js
new file mode 100644
index 0000000..05e8569
--- /dev/null
+++ b/node_modules/gauge/process.js
@@ -0,0 +1,3 @@
+'use strict'
+// this exists so we can replace it during testing
+module.exports = process
diff --git a/node_modules/gauge/progress-bar.js b/node_modules/gauge/progress-bar.js
new file mode 100644
index 0000000..1780a8a
--- /dev/null
+++ b/node_modules/gauge/progress-bar.js
@@ -0,0 +1,35 @@
+'use strict'
+var validate = require('aproba')
+var renderTemplate = require('./render-template.js')
+var wideTruncate = require('./wide-truncate')
+var stringWidth = require('string-width')
+
+module.exports = function (theme, width, completed) {
+  validate('ONN', [theme, width, completed])
+  if (completed < 0) completed = 0
+  if (completed > 1) completed = 1
+  if (width <= 0) return ''
+  var sofar = Math.round(width * completed)
+  var rest = width - sofar
+  var template = [
+    {type: 'complete', value: repeat(theme.complete, sofar), length: sofar},
+    {type: 'remaining', value: repeat(theme.remaining, rest), length: rest}
+  ]
+  return renderTemplate(width, template, theme)
+}
+
+// lodash's way of repeating
+function repeat (string, width) {
+  var result = ''
+  var n = width
+  do {
+    if (n % 2) {
+      result += string
+    }
+    n = Math.floor(n / 2)
+    /* eslint no-self-assign: 0 */
+    string += string
+  } while (n && stringWidth(result) < width)
+
+  return wideTruncate(result, width)
+}
diff --git a/node_modules/gauge/render-template.js b/node_modules/gauge/render-template.js
new file mode 100644
index 0000000..9764c6e
--- /dev/null
+++ b/node_modules/gauge/render-template.js
@@ -0,0 +1,178 @@
+'use strict'
+var align = require('wide-align')
+var validate = require('aproba')
+var wideTruncate = require('./wide-truncate')
+var error = require('./error')
+var TemplateItem = require('./template-item')
+
+function renderValueWithValues (values) {
+  return function (item) {
+    return renderValue(item, values)
+  }
+}
+
+var renderTemplate = module.exports = function (width, template, values) {
+  var items = prepareItems(width, template, values)
+  var rendered = items.map(renderValueWithValues(values)).join('')
+  return align.left(wideTruncate(rendered, width), width)
+}
+
+function preType (item) {
+  var cappedTypeName = item.type[0].toUpperCase() + item.type.slice(1)
+  return 'pre' + cappedTypeName
+}
+
+function postType (item) {
+  var cappedTypeName = item.type[0].toUpperCase() + item.type.slice(1)
+  return 'post' + cappedTypeName
+}
+
+function hasPreOrPost (item, values) {
+  if (!item.type) return
+  return values[preType(item)] || values[postType(item)]
+}
+
+function generatePreAndPost (baseItem, parentValues) {
+  var item = Object.assign({}, baseItem)
+  var values = Object.create(parentValues)
+  var template = []
+  var pre = preType(item)
+  var post = postType(item)
+  if (values[pre]) {
+    template.push({value: values[pre]})
+    values[pre] = null
+  }
+  item.minLength = null
+  item.length = null
+  item.maxLength = null
+  template.push(item)
+  values[item.type] = values[item.type]
+  if (values[post]) {
+    template.push({value: values[post]})
+    values[post] = null
+  }
+  return function ($1, $2, length) {
+    return renderTemplate(length, template, values)
+  }
+}
+
+function prepareItems (width, template, values) {
+  function cloneAndObjectify (item, index, arr) {
+    var cloned = new TemplateItem(item, width)
+    var type = cloned.type
+    if (cloned.value == null) {
+      if (!(type in values)) {
+        if (cloned.default == null) {
+          throw new error.MissingTemplateValue(cloned, values)
+        } else {
+          cloned.value = cloned.default
+        }
+      } else {
+        cloned.value = values[type]
+      }
+    }
+    if (cloned.value == null || cloned.value === '') return null
+    cloned.index = index
+    cloned.first = index === 0
+    cloned.last = index === arr.length - 1
+    if (hasPreOrPost(cloned, values)) cloned.value = generatePreAndPost(cloned, values)
+    return cloned
+  }
+
+  var output = template.map(cloneAndObjectify).filter(function (item) { return item != null })
+
+  var remainingSpace = width
+  var variableCount = output.length
+
+  function consumeSpace (length) {
+    if (length > remainingSpace) length = remainingSpace
+    remainingSpace -= length
+  }
+
+  function finishSizing (item, length) {
+    if (item.finished) throw new error.Internal('Tried to finish template item that was already finished')
+    if (length === Infinity) throw new error.Internal('Length of template item cannot be infinity')
+    if (length != null) item.length = length
+    item.minLength = null
+    item.maxLength = null
+    --variableCount
+    item.finished = true
+    if (item.length == null) item.length = item.getBaseLength()
+    if (item.length == null) throw new error.Internal('Finished template items must have a length')
+    consumeSpace(item.getLength())
+  }
+
+  output.forEach(function (item) {
+    if (!item.kerning) return
+    var prevPadRight = item.first ? 0 : output[item.index - 1].padRight
+    if (!item.first && prevPadRight < item.kerning) item.padLeft = item.kerning - prevPadRight
+    if (!item.last) item.padRight = item.kerning
+  })
+
+  // Finish any that have a fixed (literal or intuited) length
+  output.forEach(function (item) {
+    if (item.getBaseLength() == null) return
+    finishSizing(item)
+  })
+
+  var resized = 0
+  var resizing
+  var hunkSize
+  do {
+    resizing = false
+    hunkSize = Math.round(remainingSpace / variableCount)
+    output.forEach(function (item) {
+      if (item.finished) return
+      if (!item.maxLength) return
+      if (item.getMaxLength() < hunkSize) {
+        finishSizing(item, item.maxLength)
+        resizing = true
+      }
+    })
+  } while (resizing && resized++ < output.length)
+  if (resizing) throw new error.Internal('Resize loop iterated too many times while determining maxLength')
+
+  resized = 0
+  do {
+    resizing = false
+    hunkSize = Math.round(remainingSpace / variableCount)
+    output.forEach(function (item) {
+      if (item.finished) return
+      if (!item.minLength) return
+      if (item.getMinLength() >= hunkSize) {
+        finishSizing(item, item.minLength)
+        resizing = true
+      }
+    })
+  } while (resizing && resized++ < output.length)
+  if (resizing) throw new error.Internal('Resize loop iterated too many times while determining minLength')
+
+  hunkSize = Math.round(remainingSpace / variableCount)
+  output.forEach(function (item) {
+    if (item.finished) return
+    finishSizing(item, hunkSize)
+  })
+
+  return output
+}
+
+function renderFunction (item, values, length) {
+  validate('OON', arguments)
+  if (item.type) {
+    return item.value(values, values[item.type + 'Theme'] || {}, length)
+  } else {
+    return item.value(values, {}, length)
+  }
+}
+
+function renderValue (item, values) {
+  var length = item.getBaseLength()
+  var value = typeof item.value === 'function' ? renderFunction(item, values, length) : item.value
+  if (value == null || value === '') return ''
+  var alignWith = align[item.align] || align.left
+  var leftPadding = item.padLeft ? align.left('', item.padLeft) : ''
+  var rightPadding = item.padRight ? align.right('', item.padRight) : ''
+  var truncated = wideTruncate(String(value), length)
+  var aligned = alignWith(truncated, length)
+  return leftPadding + aligned + rightPadding
+}
diff --git a/node_modules/gauge/set-immediate.js b/node_modules/gauge/set-immediate.js
new file mode 100644
index 0000000..6650a48
--- /dev/null
+++ b/node_modules/gauge/set-immediate.js
@@ -0,0 +1,7 @@
+'use strict'
+var process = require('./process')
+try {
+  module.exports = setImmediate
+} catch (ex) {
+  module.exports = process.nextTick
+}
diff --git a/node_modules/gauge/set-interval.js b/node_modules/gauge/set-interval.js
new file mode 100644
index 0000000..5761987
--- /dev/null
+++ b/node_modules/gauge/set-interval.js
@@ -0,0 +1,3 @@
+'use strict'
+// this exists so we can replace it during testing
+module.exports = setInterval
diff --git a/node_modules/gauge/spin.js b/node_modules/gauge/spin.js
new file mode 100644
index 0000000..34142ee
--- /dev/null
+++ b/node_modules/gauge/spin.js
@@ -0,0 +1,5 @@
+'use strict'
+
+module.exports = function spin (spinstr, spun) {
+  return spinstr[spun % spinstr.length]
+}
diff --git a/node_modules/gauge/template-item.js b/node_modules/gauge/template-item.js
new file mode 100644
index 0000000..4f02fef
--- /dev/null
+++ b/node_modules/gauge/template-item.js
@@ -0,0 +1,72 @@
+'use strict'
+var stringWidth = require('string-width')
+
+module.exports = TemplateItem
+
+function isPercent (num) {
+  if (typeof num !== 'string') return false
+  return num.slice(-1) === '%'
+}
+
+function percent (num) {
+  return Number(num.slice(0, -1)) / 100
+}
+
+function TemplateItem (values, outputLength) {
+  this.overallOutputLength = outputLength
+  this.finished = false
+  this.type = null
+  this.value = null
+  this.length = null
+  this.maxLength = null
+  this.minLength = null
+  this.kerning = null
+  this.align = 'left'
+  this.padLeft = 0
+  this.padRight = 0
+  this.index = null
+  this.first = null
+  this.last = null
+  if (typeof values === 'string') {
+    this.value = values
+  } else {
+    for (var prop in values) this[prop] = values[prop]
+  }
+  // Realize percents
+  if (isPercent(this.length)) {
+    this.length = Math.round(this.overallOutputLength * percent(this.length))
+  }
+  if (isPercent(this.minLength)) {
+    this.minLength = Math.round(this.overallOutputLength * percent(this.minLength))
+  }
+  if (isPercent(this.maxLength)) {
+    this.maxLength = Math.round(this.overallOutputLength * percent(this.maxLength))
+  }
+  return this
+}
+
+TemplateItem.prototype = {}
+
+TemplateItem.prototype.getBaseLength = function () {
+  var length = this.length
+  if (length == null && typeof this.value === 'string' && this.maxLength == null && this.minLength == null) {
+    length = stringWidth(this.value)
+  }
+  return length
+}
+
+TemplateItem.prototype.getLength = function () {
+  var length = this.getBaseLength()
+  if (length == null) return null
+  return length + this.padLeft + this.padRight
+}
+
+TemplateItem.prototype.getMaxLength = function () {
+  if (this.maxLength == null) return null
+  return this.maxLength + this.padLeft + this.padRight
+}
+
+TemplateItem.prototype.getMinLength = function () {
+  if (this.minLength == null) return null
+  return this.minLength + this.padLeft + this.padRight
+}
diff --git a/node_modules/gauge/theme-set.js b/node_modules/gauge/theme-set.js
new file mode 100644
index 0000000..c022d61
--- /dev/null
+++ b/node_modules/gauge/theme-set.js
@@ -0,0 +1,114 @@
+'use strict'
+var objectAssign = require('object-assign')
+
+module.exports = function () {
+  return ThemeSetProto.newThemeSet()
+}
+
+var ThemeSetProto = {}
+
+ThemeSetProto.baseTheme = require('./base-theme.js')
+
+ThemeSetProto.newTheme = function (parent, theme) {
+  if (!theme) {
+    theme = parent
+    parent = this.baseTheme
+  }
+  return objectAssign({}, parent, theme)
+}
+
+ThemeSetProto.getThemeNames = function () {
+  return Object.keys(this.themes)
+}
+
+ThemeSetProto.addTheme = function (name, parent, theme) {
+  this.themes[name] = this.newTheme(parent, theme)
+}
+
+ThemeSetProto.addToAllThemes = function (theme) {
+  var themes = this.themes
+  Object.keys(themes).forEach(function (name) {
+    objectAssign(themes[name], theme)
+  })
+  objectAssign(this.baseTheme, theme)
+}
+
+ThemeSetProto.getTheme = function (name) {
+  if (!this.themes[name]) throw this.newMissingThemeError(name)
+  return this.themes[name]
+}
+
+ThemeSetProto.setDefault = function (opts, name) {
+  if (name == null) {
+    name = opts
+    opts = {}
+  }
+  var platform = opts.platform == null ? 'fallback' : opts.platform
+  var hasUnicode = !!opts.hasUnicode
+  var hasColor = !!opts.hasColor
+  if (!this.defaults[platform]) this.defaults[platform] = {true: {}, false: {}}
+  this.defaults[platform][hasUnicode][hasColor] = name
+}
+
+ThemeSetProto.getDefault = function (opts) {
+  if (!opts) opts = {}
+  var platformName = opts.platform || process.platform
+  var platform = this.defaults[platformName] || this.defaults.fallback
+  var hasUnicode = !!opts.hasUnicode
+  var hasColor = !!opts.hasColor
+  if (!platform) throw this.newMissingDefaultThemeError(platformName, hasUnicode, hasColor)
+  if (!platform[hasUnicode][hasColor]) {
+    if (hasUnicode && hasColor && platform[!hasUnicode][hasColor]) {
+      hasUnicode = false
+    } else if (hasUnicode && hasColor && platform[hasUnicode][!hasColor]) {
+      hasColor = false
+    } else if (hasUnicode && hasColor && platform[!hasUnicode][!hasColor]) {
+      hasUnicode = false
+      hasColor = false
+    } else if (hasUnicode && !hasColor && platform[!hasUnicode][hasColor]) {
+      hasUnicode = false
+    } else if (!hasUnicode && hasColor && platform[hasUnicode][!hasColor]) {
+      hasColor = false
+    } else if (platform === this.defaults.fallback) {
+      throw this.newMissingDefaultThemeError(platformName, hasUnicode, hasColor)
+    }
+  }
+  if (platform[hasUnicode][hasColor]) {
+    return this.getTheme(platform[hasUnicode][hasColor])
+  } else {
+    return this.getDefault(objectAssign({}, opts, {platform: 'fallback'}))
+  }
+}
+
+ThemeSetProto.newMissingThemeError = function newMissingThemeError (name) {
+  var err = new Error('Could not find a gauge theme named "' + name + '"')
+  Error.captureStackTrace.call(err, newMissingThemeError)
+  err.theme = name
+  err.code = 'EMISSINGTHEME'
+  return err
+}
+
+ThemeSetProto.newMissingDefaultThemeError = function newMissingDefaultThemeError (platformName, hasUnicode, hasColor) {
+  var err = new Error(
+    'Could not find a gauge theme for your platform/unicode/color use combo:\n' +
+    '    platform = ' + platformName + '\n' +
+    '    hasUnicode = ' + hasUnicode + '\n' +
+    '    hasColor = ' + hasColor)
+  Error.captureStackTrace.call(err, newMissingDefaultThemeError)
+  err.platform = platformName
+  err.hasUnicode = hasUnicode
+  err.hasColor = hasColor
+  err.code = 'EMISSINGTHEME'
+  return err
+}
+
+ThemeSetProto.newThemeSet = function () {
+  var themeset = function (opts) {
+    return themeset.getDefault(opts)
+  }
+  return objectAssign(themeset, ThemeSetProto, {
+    themes: objectAssign({}, this.themes),
+    baseTheme: objectAssign({}, this.baseTheme),
+    defaults: JSON.parse(JSON.stringify(this.defaults || {}))
+  })
+}
diff --git a/node_modules/gauge/themes.js b/node_modules/gauge/themes.js
new file mode 100644
index 0000000..df1184d
--- /dev/null
+++ b/node_modules/gauge/themes.js
@@ -0,0 +1,56 @@
+'use strict'
+var color = require('console-control-strings').color
+var ThemeSet = require('./theme-set.js')
+
+var themes = module.exports = new ThemeSet()
+
+themes.addTheme('ASCII', {
+  preProgressbar: '[',
+  postProgressbar: ']',
+  progressbarTheme: {
+    complete: '#',
+    remaining: '.'
+  },
+  activityIndicatorTheme: '-\\|/',
+  preSubsection: '>'
+})
+
+themes.addTheme('colorASCII', themes.getTheme('ASCII'), {
+  progressbarTheme: {
+    preComplete: color('bgBrightWhite', 'brightWhite'),
+    complete: '#',
+    postComplete: color('reset'),
+    preRemaining: color('bgBrightBlack', 'brightBlack'),
+    remaining: '.',
+    postRemaining: color('reset')
+  }
+})
+
+themes.addTheme('brailleSpinner', {
+  preProgressbar: '⸨',
+  postProgressbar: '⸩',
+  progressbarTheme: {
+    complete: '#',
+    remaining: '⠂'
+  },
+  activityIndicatorTheme: '⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏',
+  preSubsection: '>'
+})
+
+themes.addTheme('colorBrailleSpinner', themes.getTheme('brailleSpinner'), {
+  progressbarTheme: {
+    preComplete: color('bgBrightWhite', 'brightWhite'),
+    complete: '#',
+    postComplete: color('reset'),
+    preRemaining: color('bgBrightBlack', 'brightBlack'),
+    remaining: '⠂',
+    postRemaining: color('reset')
+  }
+})
+
+themes.setDefault({}, 'ASCII')
+themes.setDefault({hasColor: true}, 'colorASCII')
+themes.setDefault({platform: 'darwin', hasUnicode: true}, 'brailleSpinner')
+themes.setDefault({platform: 'darwin', hasUnicode: true, hasColor: true}, 'colorBrailleSpinner')
+themes.setDefault({platform: 'linux', hasUnicode: true}, 'brailleSpinner')
+themes.setDefault({platform: 'linux', hasUnicode: true, hasColor: true}, 'colorBrailleSpinner')
diff --git a/node_modules/gauge/wide-truncate.js b/node_modules/gauge/wide-truncate.js
new file mode 100644
index 0000000..c531bc4
--- /dev/null
+++ b/node_modules/gauge/wide-truncate.js
@@ -0,0 +1,25 @@
+'use strict'
+var stringWidth = require('string-width')
+var stripAnsi = require('strip-ansi')
+
+module.exports = wideTruncate
+
+function wideTruncate (str, target) {
+  if (stringWidth(str) === 0) return str
+  if (target <= 0) return ''
+  if (stringWidth(str) <= target) return str
+
+  // We compute the number of bytes of ansi sequences here and add
+  // that to our initial truncation to ensure that we don't slice one
+  // that we want to keep in half.
+  var noAnsi = stripAnsi(str)
+  var ansiSize = str.length + noAnsi.length
+  var truncated = str.slice(0, target + ansiSize)
+
+  // we have to shrink the result to account for our ansi sequence buffer
+  // (if an ansi sequence was truncated) and double width characters.
+  while (stringWidth(truncated) > target) {
+    truncated = truncated.slice(0, -1)
+  }
+  return truncated
+}
diff --git a/node_modules/glob/LICENSE b/node_modules/glob/LICENSE
new file mode 100644
index 0000000..42ca266
--- /dev/null
+++ b/node_modules/glob/LICENSE
@@ -0,0 +1,21 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+## Glob Logo
+
+Glob's logo created by Tanya Brassie <http://tanyabrassie.com/>, licensed
+under a Creative Commons Attribution-ShareAlike 4.0 International License
+https://creativecommons.org/licenses/by-sa/4.0/
diff --git a/node_modules/glob/README.md b/node_modules/glob/README.md
new file mode 100644
index 0000000..83f0c83
--- /dev/null
+++ b/node_modules/glob/README.md
@@ -0,0 +1,378 @@
+# Glob
+
+Match files using the patterns the shell uses, like stars and stuff.
+
+[![Build Status](https://travis-ci.org/isaacs/node-glob.svg?branch=master)](https://travis-ci.org/isaacs/node-glob/) [![Build Status](https://ci.appveyor.com/api/projects/status/kd7f3yftf7unxlsx?svg=true)](https://ci.appveyor.com/project/isaacs/node-glob) [![Coverage Status](https://coveralls.io/repos/isaacs/node-glob/badge.svg?branch=master&service=github)](https://coveralls.io/github/isaacs/node-glob?branch=master)
+
+This is a glob implementation in JavaScript.  It uses the `minimatch`
+library to do its matching.
+
+![a fun cartoon logo made of glob characters](logo/glob.png)
+
+## Usage
+
+Install with npm
+
+```
+npm i glob
+```
+
+```javascript
+var glob = require("glob")
+
+// options is optional
+glob("**/*.js", options, function (er, files) {
+  // files is an array of filenames.
+  // If the `nonull` option is set, and nothing
+  // was found, then files is ["**/*.js"]
+  // er is an error object or null.
+})
+```
+
+## Glob Primer
+
+"Globs" are the patterns you type when you do stuff like `ls *.js` on
+the command line, or put `build/*` in a `.gitignore` file.
+
+Before parsing the path part patterns, braced sections are expanded
+into a set.  Braced sections start with `{` and end with `}`, with any
+number of comma-delimited sections within.  Braced sections may contain
+slash characters, so `a{/b/c,bcd}` would expand into `a/b/c` and `abcd`.
+
+The following characters have special magic meaning when used in a
+path portion:
+
+* `*` Matches 0 or more characters in a single path portion
+* `?` Matches 1 character
+* `[...]` Matches a range of characters, similar to a RegExp range.
+  If the first character of the range is `!` or `^` then it matches
+  any character not in the range.
+* `!(pattern|pattern|pattern)` Matches anything that does not match
+  any of the patterns provided.
+* `?(pattern|pattern|pattern)` Matches zero or one occurrence of the
+  patterns provided.
+* `+(pattern|pattern|pattern)` Matches one or more occurrences of the
+  patterns provided.
+* `*(a|b|c)` Matches zero or more occurrences of the patterns provided
+* `@(pattern|pat*|pat?erN)` Matches exactly one of the patterns
+  provided
+* `**` If a "globstar" is alone in a path portion, then it matches
+  zero or more directories and subdirectories searching for matches.
+  It does not crawl symlinked directories.
+
+### Dots
+
+If a file or directory path portion has a `.` as the first character,
+then it will not match any glob pattern unless that pattern's
+corresponding path part also has a `.` as its first character.
+
+For example, the pattern `a/.*/c` would match the file at `a/.b/c`.
+However the pattern `a/*/c` would not, because `*` does not start with
+a dot character.
+
+You can make glob treat dots as normal characters by setting
+`dot:true` in the options.
+
+### Basename Matching
+
+If you set `matchBase:true` in the options, and the pattern has no
+slashes in it, then it will seek for any file anywhere in the tree
+with a matching basename.  For example, `*.js` would match
+`test/simple/basic.js`.
+
+### Empty Sets
+
+If no matching files are found, then an empty array is returned.  This
+differs from the shell, where the pattern itself is returned.  For
+example:
+
+    $ echo a*s*d*f
+    a*s*d*f
+
+To get the bash-style behavior, set the `nonull:true` in the options.
+
+### See Also:
+
+* `man sh`
+* `man bash` (Search for "Pattern Matching")
+* `man 3 fnmatch`
+* `man 5 gitignore`
+* [minimatch documentation](https://github.com/isaacs/minimatch)
+
+## glob.hasMagic(pattern, [options])
+
+Returns `true` if there are any special characters in the pattern, and
+`false` otherwise.
+
+Note that the options affect the results.  If `noext:true` is set in
+the options object, then `+(a|b)` will not be considered a magic
+pattern.  If the pattern has a brace expansion, like `a/{b/c,x/y}`
+then that is considered magical, unless `nobrace:true` is set in the
+options.
+
+## glob(pattern, [options], cb)
+
+* `pattern` `{String}` Pattern to be matched
+* `options` `{Object}`
+* `cb` `{Function}`
+  * `err` `{Error | null}`
+  * `matches` `{Array<String>}` filenames found matching the pattern
+
+Perform an asynchronous glob search.
+
+## glob.sync(pattern, [options])
+
+* `pattern` `{String}` Pattern to be matched
+* `options` `{Object}`
+* return: `{Array<String>}` filenames found matching the pattern
+
+Perform a synchronous glob search.
+
+## Class: glob.Glob
+
+Create a Glob object by instantiating the `glob.Glob` class.
+
+```javascript
+var Glob = require("glob").Glob
+var mg = new Glob(pattern, options, cb)
+```
+
+It's an EventEmitter, and starts walking the filesystem to find matches
+immediately.
+
+### new glob.Glob(pattern, [options], [cb])
+
+* `pattern` `{String}` pattern to search for
+* `options` `{Object}`
+* `cb` `{Function}` Called when an error occurs, or matches are found
+  * `err` `{Error | null}`
+  * `matches` `{Array<String>}` filenames found matching the pattern
+
+Note that if the `sync` flag is set in the options, then matches will
+be immediately available on the `g.found` member.
+
+### Properties
+
+* `minimatch` The minimatch object that the glob uses.
+* `options` The options object passed in.
+* `aborted` Boolean which is set to true when calling `abort()`.  There
+  is no way at this time to continue a glob search after aborting, but
+  you can re-use the statCache to avoid having to duplicate syscalls.
+* `cache` Convenience object.  Each field has the following possible
+  values:
+  * `false` - Path does not exist
+  * `true` - Path exists
+  * `'FILE'` - Path exists, and is not a directory
+  * `'DIR'` - Path exists, and is a directory
+  * `[file, entries, ...]` - Path exists, is a directory, and the
+    array value is the results of `fs.readdir`
+* `statCache` Cache of `fs.stat` results, to prevent statting the same
+  path multiple times.
+* `symlinks` A record of which paths are symbolic links, which is
+  relevant in resolving `**` patterns.
+* `realpathCache` An optional object which is passed to `fs.realpath`
+  to minimize unnecessary syscalls.  It is stored on the instantiated
+  Glob object, and may be re-used.
+
+### Events
+
+* `end` When the matching is finished, this is emitted with all the
+  matches found.  If the `nonull` option is set, and no match was found,
+  then the `matches` list contains the original pattern.  The matches
+  are sorted, unless the `nosort` flag is set.
+* `match` Every time a match is found, this is emitted with the specific
+  thing that matched. It is not deduplicated or resolved to a realpath.
+* `error` Emitted when an unexpected error is encountered, or whenever
+  any fs error occurs if `options.strict` is set.
+* `abort` When `abort()` is called, this event is raised.
+
+### Methods
+
+* `pause` Temporarily stop the search
+* `resume` Resume the search
+* `abort` Stop the search forever
+
+### Options
+
+All the options that can be passed to Minimatch can also be passed to
+Glob to change pattern matching behavior.  Also, some have been added,
+or have glob-specific ramifications.
+
+All options are false by default, unless otherwise noted.
+
+All options are added to the Glob object, as well.
+
+If you are running many `glob` operations, you can pass a Glob object
+as the `options` argument to a subsequent operation to shortcut some
+`stat` and `readdir` calls.  At the very least, you may pass in shared
+`symlinks`, `statCache`, `realpathCache`, and `cache` options, so that
+parallel glob operations will be sped up by sharing information about
+the filesystem.
+
+* `cwd` The current working directory in which to search.  Defaults
+  to `process.cwd()`.
+* `root` The place where patterns starting with `/` will be mounted
+  onto.  Defaults to `path.resolve(options.cwd, "/")` (`/` on Unix
+  systems, and `C:\` or some such on Windows.)
+* `dot` Include `.dot` files in normal matches and `globstar` matches.
+  Note that an explicit dot in a portion of the pattern will always
+  match dot files.
+* `nomount` By default, a pattern starting with a forward-slash will be
+  "mounted" onto the root setting, so that a valid filesystem path is
+  returned.  Set this flag to disable that behavior.
+* `mark` Add a `/` character to directory matches.  Note that this
+  requires additional stat calls.
+* `nosort` Don't sort the results.
+* `stat` Set to true to stat *all* results.  This reduces performance
+  somewhat, and is completely unnecessary, unless `readdir` is presumed
+  to be an untrustworthy indicator of file existence.
+* `silent` When an unusual error is encountered when attempting to
+  read a directory, a warning will be printed to stderr.  Set the
+  `silent` option to true to suppress these warnings.
+* `strict` When an unusual error is encountered when attempting to
+  read a directory, the process will just continue on in search of
+  other matches.  Set the `strict` option to raise an error in these
+  cases.
+* `cache` See `cache` property above.  Pass in a previously generated
+  cache object to save some fs calls.
+* `statCache` A cache of results of filesystem information, to prevent
+  unnecessary stat calls.  While it should not normally be necessary
+  to set this, you may pass the statCache from one glob() call to the
+  options object of another, if you know that the filesystem will not
+  change between calls.  (See "Race Conditions" below.)
+* `symlinks` A cache of known symbolic links.  You may pass in a
+  previously generated `symlinks` object to save `lstat` calls when
+  resolving `**` matches.
+* `sync` DEPRECATED: use `glob.sync(pattern, opts)` instead.
+* `nounique` In some cases, brace-expanded patterns can result in the
+  same file showing up multiple times in the result set.  By default,
+  this implementation prevents duplicates in the result set.  Set this
+  flag to disable that behavior.
+* `nonull` Set to never return an empty set, instead returning a set
+  containing the pattern itself.  This is the default in glob(3).
+* `debug` Set to enable debug logging in minimatch and glob.
+* `nobrace` Do not expand `{a,b}` and `{1..3}` brace sets.
+* `noglobstar` Do not match `**` against multiple filenames.  (Ie,
+  treat it as a normal `*` instead.)
+* `noext` Do not match `+(a|b)` "extglob" patterns.
+* `nocase` Perform a case-insensitive match.  Note: on
+  case-insensitive filesystems, non-magic patterns will match by
+  default, since `stat` and `readdir` will not raise errors.
+* `matchBase` Perform a basename-only match if the pattern does not
+  contain any slash characters.  That is, `*.js` would be treated as
+  equivalent to `**/*.js`, matching all js files in all directories.
+* `nodir` Do not match directories, only files.  (Note: to match
+  *only* directories, simply put a `/` at the end of the pattern.)
+* `ignore` Add a pattern or an array of glob patterns to exclude matches.
+  Note: `ignore` patterns are *always* in `dot:true` mode, regardless
+  of any other settings.
+* `follow` Follow symlinked directories when expanding `**` patterns.
+  Note that this can result in a lot of duplicate references in the
+  presence of cyclic links.
+* `realpath` Set to true to call `fs.realpath` on all of the results.
+  In the case of a symlink that cannot be resolved, the full absolute
+  path to the matched entry is returned (though it will usually be a
+  broken symlink)
+* `absolute` Set to true to always receive absolute paths for matched
+  files.  Unlike `realpath`, this also affects the values returned in
+  the `match` event.
+* `fs` File-system object with Node's `fs` API. By default, the built-in
+  `fs` module will be used. Set to a volume provided by a library like
+  `memfs` to avoid using the "real" file-system.
+
+## Comparisons to other fnmatch/glob implementations
+
+While strict compliance with the existing standards is a worthwhile
+goal, some discrepancies exist between node-glob and other
+implementations, and are intentional.
+
+The double-star character `**` is supported by default, unless the
+`noglobstar` flag is set.  This is supported in the manner of bsdglob
+and bash 4.3, where `**` only has special significance if it is the only
+thing in a path part.  That is, `a/**/b` will match `a/x/y/b`, but
+`a/**b` will not.
+
+Note that symlinked directories are not crawled as part of a `**`,
+though their contents may match against subsequent portions of the
+pattern.  This prevents infinite loops and duplicates and the like.
+
+If an escaped pattern has no matches, and the `nonull` flag is set,
+then glob returns the pattern as-provided, rather than
+interpreting the character escapes.  For example,
+`glob.match([], "\\*a\\?")` will return `"\\*a\\?"` rather than
+`"*a?"`.  This is akin to setting the `nullglob` option in bash, except
+that it does not resolve escaped pattern characters.
+
+If brace expansion is not disabled, then it is performed before any
+other interpretation of the glob pattern.  Thus, a pattern like
+`+(a|{b),c)}`, which would not be valid in bash or zsh, is expanded
+**first** into the set of `+(a|b)` and `+(a|c)`, and those patterns are
+checked for validity.  Since those two are valid, matching proceeds.
+
+### Comments and Negation
+
+Previously, this module let you mark a pattern as a "comment" if it
+started with a `#` character, or a "negated" pattern if it started
+with a `!` character.
+
+These options were deprecated in version 5, and removed in version 6.
+
+To specify things that should not match, use the `ignore` option.
+
+## Windows
+
+**Please only use forward-slashes in glob expressions.**
+
+Though windows uses either `/` or `\` as its path separator, only `/`
+characters are used by this glob implementation.  You must use
+forward-slashes **only** in glob expressions.  Back-slashes will always
+be interpreted as escape characters, not path separators.
+
+Results from absolute patterns such as `/foo/*` are mounted onto the
+root setting using `path.join`.  On windows, this will by default result
+in `/foo/*` matching `C:\foo\bar.txt`.
+
+## Race Conditions
+
+Glob searching, by its very nature, is susceptible to race conditions,
+since it relies on directory walking and such.
+
+As a result, it is possible that a file that exists when glob looks for
+it may have been deleted or modified by the time it returns the result.
+
+As part of its internal implementation, this program caches all stat
+and readdir calls that it makes, in order to cut down on system
+overhead.  However, this also makes it even more susceptible to races,
+especially if the cache or statCache objects are reused between glob
+calls.
+
+Users are thus advised not to use a glob result as a guarantee of
+filesystem state in the face of rapid changes.  For the vast majority
+of operations, this is never a problem.
+
+## Glob Logo
+Glob's logo was created by [Tanya Brassie](http://tanyabrassie.com/). Logo files can be found [here](https://github.com/isaacs/node-glob/tree/master/logo).
+
+The logo is licensed under a [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/).
+
+## Contributing
+
+Any change to behavior (including bugfixes) must come with a test.
+
+Patches that fail tests or reduce performance will be rejected.
+
+```
+# to run tests
+npm test
+
+# to re-generate test fixtures
+npm run test-regen
+
+# to benchmark against bash/zsh
+npm run bench
+
+# to profile javascript
+npm run prof
+```
+
+![](oh-my-glob.gif)
diff --git a/node_modules/glob/common.js b/node_modules/glob/common.js
new file mode 100644
index 0000000..424c46e
--- /dev/null
+++ b/node_modules/glob/common.js
@@ -0,0 +1,238 @@
+exports.setopts = setopts
+exports.ownProp = ownProp
+exports.makeAbs = makeAbs
+exports.finish = finish
+exports.mark = mark
+exports.isIgnored = isIgnored
+exports.childrenIgnored = childrenIgnored
+
+function ownProp (obj, field) {
+  return Object.prototype.hasOwnProperty.call(obj, field)
+}
+
+var fs = require("fs")
+var path = require("path")
+var minimatch = require("minimatch")
+var isAbsolute = require("path-is-absolute")
+var Minimatch = minimatch.Minimatch
+
+function alphasort (a, b) {
+  return a.localeCompare(b, 'en')
+}
+
+function setupIgnores (self, options) {
+  self.ignore = options.ignore || []
+
+  if (!Array.isArray(self.ignore))
+    self.ignore = [self.ignore]
+
+  if (self.ignore.length) {
+    self.ignore = self.ignore.map(ignoreMap)
+  }
+}
+
+// ignore patterns are always in dot:true mode.
+function ignoreMap (pattern) {
+  var gmatcher = null
+  if (pattern.slice(-3) === '/**') {
+    var gpattern = pattern.replace(/(\/\*\*)+$/, '')
+    gmatcher = new Minimatch(gpattern, { dot: true })
+  }
+
+  return {
+    matcher: new Minimatch(pattern, { dot: true }),
+    gmatcher: gmatcher
+  }
+}
+
+function setopts (self, pattern, options) {
+  if (!options)
+    options = {}
+
+  // base-matching: just use globstar for that.
+  if (options.matchBase && -1 === pattern.indexOf("/")) {
+    if (options.noglobstar) {
+      throw new Error("base matching requires globstar")
+    }
+    pattern = "**/" + pattern
+  }
+
+  self.silent = !!options.silent
+  self.pattern = pattern
+  self.strict = options.strict !== false
+  self.realpath = !!options.realpath
+  self.realpathCache = options.realpathCache || Object.create(null)
+  self.follow = !!options.follow
+  self.dot = !!options.dot
+  self.mark = !!options.mark
+  self.nodir = !!options.nodir
+  if (self.nodir)
+    self.mark = true
+  self.sync = !!options.sync
+  self.nounique = !!options.nounique
+  self.nonull = !!options.nonull
+  self.nosort = !!options.nosort
+  self.nocase = !!options.nocase
+  self.stat = !!options.stat
+  self.noprocess = !!options.noprocess
+  self.absolute = !!options.absolute
+  self.fs = options.fs || fs
+
+  self.maxLength = options.maxLength || Infinity
+  self.cache = options.cache || Object.create(null)
+  self.statCache = options.statCache || Object.create(null)
+  self.symlinks = options.symlinks || Object.create(null)
+
+  setupIgnores(self, options)
+
+  self.changedCwd = false
+  var cwd = process.cwd()
+  if (!ownProp(options, "cwd"))
+    self.cwd = cwd
+  else {
+    self.cwd = path.resolve(options.cwd)
+    self.changedCwd = self.cwd !== cwd
+  }
+
+  self.root = options.root || path.resolve(self.cwd, "/")
+  self.root = path.resolve(self.root)
+  if (process.platform === "win32")
+    self.root = self.root.replace(/\\/g, "/")
+
+  // TODO: is an absolute `cwd` supposed to be resolved against `root`?
+  // e.g. { cwd: '/test', root: __dirname } === path.join(__dirname, '/test')
+  self.cwdAbs = isAbsolute(self.cwd) ? self.cwd : makeAbs(self, self.cwd)
+  if (process.platform === "win32")
+    self.cwdAbs = self.cwdAbs.replace(/\\/g, "/")
+  self.nomount = !!options.nomount
+
+  // disable comments and negation in Minimatch.
+  // Note that they are not supported in Glob itself anyway.
+  options.nonegate = true
+  options.nocomment = true
+  // always treat \ in patterns as escapes, not path separators
+  options.allowWindowsEscape = false
+
+  self.minimatch = new Minimatch(pattern, options)
+  self.options = self.minimatch.options
+}
+
+function finish (self) {
+  var nou = self.nounique
+  var all = nou ? [] : Object.create(null)
+
+  for (var i = 0, l = self.matches.length; i < l; i ++) {
+    var matches = self.matches[i]
+    if (!matches || Object.keys(matches).length === 0) {
+      if (self.nonull) {
+        // do like the shell, and spit out the literal glob
+        var literal = self.minimatch.globSet[i]
+        if (nou)
+          all.push(literal)
+        else
+          all[literal] = true
+      }
+    } else {
+      // had matches
+      var m = Object.keys(matches)
+      if (nou)
+        all.push.apply(all, m)
+      else
+        m.forEach(function (m) {
+          all[m] = true
+        })
+    }
+  }
+
+  if (!nou)
+    all = Object.keys(all)
+
+  if (!self.nosort)
+    all = all.sort(alphasort)
+
+  // at *some* point we statted all of these
+  if (self.mark) {
+    for (var i = 0; i < all.length; i++) {
+      all[i] = self._mark(all[i])
+    }
+    if (self.nodir) {
+      all = all.filter(function (e) {
+        var notDir = !(/\/$/.test(e))
+        var c = self.cache[e] || self.cache[makeAbs(self, e)]
+        if (notDir && c)
+          notDir = c !== 'DIR' && !Array.isArray(c)
+        return notDir
+      })
+    }
+  }
+
+  if (self.ignore.length)
+    all = all.filter(function(m) {
+      return !isIgnored(self, m)
+    })
+
+  self.found = all
+}
+
+function mark (self, p) {
+  var abs = makeAbs(self, p)
+  var c = self.cache[abs]
+  var m = p
+  if (c) {
+    var isDir = c === 'DIR' || Array.isArray(c)
+    var slash = p.slice(-1) === '/'
+
+    if (isDir && !slash)
+      m += '/'
+    else if (!isDir && slash)
+      m = m.slice(0, -1)
+
+    if (m !== p) {
+      var mabs = makeAbs(self, m)
+      self.statCache[mabs] = self.statCache[abs]
+      self.cache[mabs] = self.cache[abs]
+    }
+  }
+
+  return m
+}
+
+// lotta situps...
+function makeAbs (self, f) {
+  var abs = f
+  if (f.charAt(0) === '/') {
+    abs = path.join(self.root, f)
+  } else if (isAbsolute(f) || f === '') {
+    abs = f
+  } else if (self.changedCwd) {
+    abs = path.resolve(self.cwd, f)
+  } else {
+    abs = path.resolve(f)
+  }
+
+  if (process.platform === 'win32')
+    abs = abs.replace(/\\/g, '/')
+
+  return abs
+}
+
+
+// Return true, if pattern ends with globstar '**', for the accompanying parent directory.
+// Ex:- If node_modules/** is the pattern, add 'node_modules' to ignore list along with it's contents
+function isIgnored (self, path) {
+  if (!self.ignore.length)
+    return false
+
+  return self.ignore.some(function(item) {
+    return item.matcher.match(path) || !!(item.gmatcher && item.gmatcher.match(path))
+  })
+}
+
+function childrenIgnored (self, path) {
+  if (!self.ignore.length)
+    return false
+
+  return self.ignore.some(function(item) {
+    return !!(item.gmatcher && item.gmatcher.match(path))
+  })
+}
diff --git a/node_modules/glob/glob.js b/node_modules/glob/glob.js
new file mode 100644
index 0000000..37a4d7e
--- /dev/null
+++ b/node_modules/glob/glob.js
@@ -0,0 +1,790 @@
+// Approach:
+//
+// 1. Get the minimatch set
+// 2. For each pattern in the set, PROCESS(pattern, false)
+// 3. Store matches per-set, then uniq them
+//
+// PROCESS(pattern, inGlobStar)
+// Get the first [n] items from pattern that are all strings
+// Join these together.  This is PREFIX.
+//   If there is no more remaining, then stat(PREFIX) and
+//   add to matches if it succeeds.  END.
+//
+// If inGlobStar and PREFIX is symlink and points to dir
+//   set ENTRIES = []
+// else readdir(PREFIX) as ENTRIES
+//   If fail, END
+//
+// with ENTRIES
+//   If pattern[n] is GLOBSTAR
+//     // handle the case where the globstar match is empty
+//     // by pruning it out, and testing the resulting pattern
+//     PROCESS(pattern[0..n] + pattern[n+1 .. $], false)
+//     // handle other cases.
+//     for ENTRY in ENTRIES (not dotfiles)
+//       // attach globstar + tail onto the entry
+//       // Mark that this entry is a globstar match
+//       PROCESS(pattern[0..n] + ENTRY + pattern[n .. $], true)
+//
+//   else // not globstar
+//     for ENTRY in ENTRIES (not dotfiles, unless pattern[n] is dot)
+//       Test ENTRY against pattern[n]
+//       If fails, continue
+//       If passes, PROCESS(pattern[0..n] + item + pattern[n+1 .. $])
+//
+// Caveat:
+//   Cache all stats and readdirs results to minimize syscall.  Since all
+//   we ever care about is existence and directory-ness, we can just keep
+//   `true` for files, and [children,...] for directories, or `false` for
+//   things that don't exist.
+
+module.exports = glob
+
+var rp = require('fs.realpath')
+var minimatch = require('minimatch')
+var Minimatch = minimatch.Minimatch
+var inherits = require('inherits')
+var EE = require('events').EventEmitter
+var path = require('path')
+var assert = require('assert')
+var isAbsolute = require('path-is-absolute')
+var globSync = require('./sync.js')
+var common = require('./common.js')
+var setopts = common.setopts
+var ownProp = common.ownProp
+var inflight = require('inflight')
+var util = require('util')
+var childrenIgnored = common.childrenIgnored
+var isIgnored = common.isIgnored
+
+var once = require('once')
+
+function glob (pattern, options, cb) {
+  if (typeof options === 'function') cb = options, options = {}
+  if (!options) options = {}
+
+  if (options.sync) {
+    if (cb)
+      throw new TypeError('callback provided to sync glob')
+    return globSync(pattern, options)
+  }
+
+  return new Glob(pattern, options, cb)
+}
+
+glob.sync = globSync
+var GlobSync = glob.GlobSync = globSync.GlobSync
+
+// old api surface
+glob.glob = glob
+
+function extend (origin, add) {
+  if (add === null || typeof add !== 'object') {
+    return origin
+  }
+
+  var keys = Object.keys(add)
+  var i = keys.length
+  while (i--) {
+    origin[keys[i]] = add[keys[i]]
+  }
+  return origin
+}
+
+glob.hasMagic = function (pattern, options_) {
+  var options = extend({}, options_)
+  options.noprocess = true
+
+  var g = new Glob(pattern, options)
+  var set = g.minimatch.set
+
+  if (!pattern)
+    return false
+
+  if (set.length > 1)
+    return true
+
+  for (var j = 0; j < set[0].length; j++) {
+    if (typeof set[0][j] !== 'string')
+      return true
+  }
+
+  return false
+}
+
+glob.Glob = Glob
+inherits(Glob, EE)
+function Glob (pattern, options, cb) {
+  if (typeof options === 'function') {
+    cb = options
+    options = null
+  }
+
+  if (options && options.sync) {
+    if (cb)
+      throw new TypeError('callback provided to sync glob')
+    return new GlobSync(pattern, options)
+  }
+
+  if (!(this instanceof Glob))
+    return new Glob(pattern, options, cb)
+
+  setopts(this, pattern, options)
+  this._didRealPath = false
+
+  // process each pattern in the minimatch set
+  var n = this.minimatch.set.length
+
+  // The matches are stored as {<filename>: true,...} so that
+  // duplicates are automagically pruned.
+  // Later, we do an Object.keys() on these.
+  // Keep them as a list so we can fill in when nonull is set.
+  this.matches = new Array(n)
+
+  if (typeof cb === 'function') {
+    cb = once(cb)
+    this.on('error', cb)
+    this.on('end', function (matches) {
+      cb(null, matches)
+    })
+  }
+
+  var self = this
+  this._processing = 0
+
+  this._emitQueue = []
+  this._processQueue = []
+  this.paused = false
+
+  if (this.noprocess)
+    return this
+
+  if (n === 0)
+    return done()
+
+  var sync = true
+  for (var i = 0; i < n; i ++) {
+    this._process(this.minimatch.set[i], i, false, done)
+  }
+  sync = false
+
+  function done () {
+    --self._processing
+    if (self._processing <= 0) {
+      if (sync) {
+        process.nextTick(function () {
+          self._finish()
+        })
+      } else {
+        self._finish()
+      }
+    }
+  }
+}
+
+Glob.prototype._finish = function () {
+  assert(this instanceof Glob)
+  if (this.aborted)
+    return
+
+  if (this.realpath && !this._didRealpath)
+    return this._realpath()
+
+  common.finish(this)
+  this.emit('end', this.found)
+}
+
+Glob.prototype._realpath = function () {
+  if (this._didRealpath)
+    return
+
+  this._didRealpath = true
+
+  var n = this.matches.length
+  if (n === 0)
+    return this._finish()
+
+  var self = this
+  for (var i = 0; i < this.matches.length; i++)
+    this._realpathSet(i, next)
+
+  function next () {
+    if (--n === 0)
+      self._finish()
+  }
+}
+
+Glob.prototype._realpathSet = function (index, cb) {
+  var matchset = this.matches[index]
+  if (!matchset)
+    return cb()
+
+  var found = Object.keys(matchset)
+  var self = this
+  var n = found.length
+
+  if (n === 0)
+    return cb()
+
+  var set = this.matches[index] = Object.create(null)
+  found.forEach(function (p, i) {
+    // If there's a problem with the stat, then it means that
+    // one or more of the links in the realpath couldn't be
+    // resolved.  just return the abs value in that case.
+    p = self._makeAbs(p)
+    rp.realpath(p, self.realpathCache, function (er, real) {
+      if (!er)
+        set[real] = true
+      else if (er.syscall === 'stat')
+        set[p] = true
+      else
+        self.emit('error', er) // srsly wtf right here
+
+      if (--n === 0) {
+        self.matches[index] = set
+        cb()
+      }
+    })
+  })
+}
+
+Glob.prototype._mark = function (p) {
+  return common.mark(this, p)
+}
+
+Glob.prototype._makeAbs = function (f) {
+  return common.makeAbs(this, f)
+}
+
+Glob.prototype.abort = function () {
+  this.aborted = true
+  this.emit('abort')
+}
+
+Glob.prototype.pause = function () {
+  if (!this.paused) {
+    this.paused = true
+    this.emit('pause')
+  }
+}
+
+Glob.prototype.resume = function () {
+  if (this.paused) {
+    this.emit('resume')
+    this.paused = false
+    if (this._emitQueue.length) {
+      var eq = this._emitQueue.slice(0)
+      this._emitQueue.length = 0
+      for (var i = 0; i < eq.length; i ++) {
+        var e = eq[i]
+        this._emitMatch(e[0], e[1])
+      }
+    }
+    if (this._processQueue.length) {
+      var pq = this._processQueue.slice(0)
+      this._processQueue.length = 0
+      for (var i = 0; i < pq.length; i ++) {
+        var p = pq[i]
+        this._processing--
+        this._process(p[0], p[1], p[2], p[3])
+      }
+    }
+  }
+}
+
+Glob.prototype._process = function (pattern, index, inGlobStar, cb) {
+  assert(this instanceof Glob)
+  assert(typeof cb === 'function')
+
+  if (this.aborted)
+    return
+
+  this._processing++
+  if (this.paused) {
+    this._processQueue.push([pattern, index, inGlobStar, cb])
+    return
+  }
+
+  //console.error('PROCESS %d', this._processing, pattern)
+
+  // Get the first [n] parts of pattern that are all strings.
+  var n = 0
+  while (typeof pattern[n] === 'string') {
+    n ++
+  }
+  // now n is the index of the first one that is *not* a string.
+
+  // see if there's anything else
+  var prefix
+  switch (n) {
+    // if not, then this is rather simple
+    case pattern.length:
+      this._processSimple(pattern.join('/'), index, cb)
+      return
+
+    case 0:
+      // pattern *starts* with some non-trivial item.
+      // going to readdir(cwd), but not include the prefix in matches.
+      prefix = null
+      break
+
+    default:
+      // pattern has some string bits in the front.
+      // whatever it starts with, whether that's 'absolute' like /foo/bar,
+      // or 'relative' like '../baz'
+      prefix = pattern.slice(0, n).join('/')
+      break
+  }
+
+  var remain = pattern.slice(n)
+
+  // get the list of entries.
+  var read
+  if (prefix === null)
+    read = '.'
+  else if (isAbsolute(prefix) ||
+      isAbsolute(pattern.map(function (p) {
+        return typeof p === 'string' ? p : '[*]'
+      }).join('/'))) {
+    if (!prefix || !isAbsolute(prefix))
+      prefix = '/' + prefix
+    read = prefix
+  } else
+    read = prefix
+
+  var abs = this._makeAbs(read)
+
+  //if ignored, skip _processing
+  if (childrenIgnored(this, read))
+    return cb()
+
+  var isGlobStar = remain[0] === minimatch.GLOBSTAR
+  if (isGlobStar)
+    this._processGlobStar(prefix, read, abs, remain, index, inGlobStar, cb)
+  else
+    this._processReaddir(prefix, read, abs, remain, index, inGlobStar, cb)
+}
+
+Glob.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar, cb) {
+  var self = this
+  this._readdir(abs, inGlobStar, function (er, entries) {
+    return self._processReaddir2(prefix, read, abs, remain, index, inGlobStar, entries, cb)
+  })
+}
+
+Glob.prototype._processReaddir2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) {
+
+  // if the abs isn't a dir, then nothing can match!
+  if (!entries)
+    return cb()
+
+  // It will only match dot entries if it starts with a dot, or if
+  // dot is set.  Stuff like @(.foo|.bar) isn't allowed.
+  var pn = remain[0]
+  var negate = !!this.minimatch.negate
+  var rawGlob = pn._glob
+  var dotOk = this.dot || rawGlob.charAt(0) === '.'
+
+  var matchedEntries = []
+  for (var i = 0; i < entries.length; i++) {
+    var e = entries[i]
+    if (e.charAt(0) !== '.' || dotOk) {
+      var m
+      if (negate && !prefix) {
+        m = !e.match(pn)
+      } else {
+        m = e.match(pn)
+      }
+      if (m)
+        matchedEntries.push(e)
+    }
+  }
+
+  //console.error('prd2', prefix, entries, remain[0]._glob, matchedEntries)
+
+  var len = matchedEntries.length
+  // If there are no matched entries, then nothing matches.
+  if (len === 0)
+    return cb()
+
+  // if this is the last remaining pattern bit, then no need for
+  // an additional stat *unless* the user has specified mark or
+  // stat explicitly.  We know they exist, since readdir returned
+  // them.
+
+  if (remain.length === 1 && !this.mark && !this.stat) {
+    if (!this.matches[index])
+      this.matches[index] = Object.create(null)
+
+    for (var i = 0; i < len; i ++) {
+      var e = matchedEntries[i]
+      if (prefix) {
+        if (prefix !== '/')
+          e = prefix + '/' + e
+        else
+          e = prefix + e
+      }
+
+      if (e.charAt(0) === '/' && !this.nomount) {
+        e = path.join(this.root, e)
+      }
+      this._emitMatch(index, e)
+    }
+    // This was the last one, and no stats were needed
+    return cb()
+  }
+
+  // now test all matched entries as stand-ins for that part
+  // of the pattern.
+  remain.shift()
+  for (var i = 0; i < len; i ++) {
+    var e = matchedEntries[i]
+    var newPattern
+    if (prefix) {
+      if (prefix !== '/')
+        e = prefix + '/' + e
+      else
+        e = prefix + e
+    }
+    this._process([e].concat(remain), index, inGlobStar, cb)
+  }
+  cb()
+}
+
+Glob.prototype._emitMatch = function (index, e) {
+  if (this.aborted)
+    return
+
+  if (isIgnored(this, e))
+    return
+
+  if (this.paused) {
+    this._emitQueue.push([index, e])
+    return
+  }
+
+  var abs = isAbsolute(e) ? e : this._makeAbs(e)
+
+  if (this.mark)
+    e = this._mark(e)
+
+  if (this.absolute)
+    e = abs
+
+  if (this.matches[index][e])
+    return
+
+  if (this.nodir) {
+    var c = this.cache[abs]
+    if (c === 'DIR' || Array.isArray(c))
+      return
+  }
+
+  this.matches[index][e] = true
+
+  var st = this.statCache[abs]
+  if (st)
+    this.emit('stat', e, st)
+
+  this.emit('match', e)
+}
+
+Glob.prototype._readdirInGlobStar = function (abs, cb) {
+  if (this.aborted)
+    return
+
+  // follow all symlinked directories forever
+  // just proceed as if this is a non-globstar situation
+  if (this.follow)
+    return this._readdir(abs, false, cb)
+
+  var lstatkey = 'lstat\0' + abs
+  var self = this
+  var lstatcb = inflight(lstatkey, lstatcb_)
+
+  if (lstatcb)
+    self.fs.lstat(abs, lstatcb)
+
+  function lstatcb_ (er, lstat) {
+    if (er && er.code === 'ENOENT')
+      return cb()
+
+    var isSym = lstat && lstat.isSymbolicLink()
+    self.symlinks[abs] = isSym
+
+    // If it's not a symlink or a dir, then it's definitely a regular file.
+    // don't bother doing a readdir in that case.
+    if (!isSym && lstat && !lstat.isDirectory()) {
+      self.cache[abs] = 'FILE'
+      cb()
+    } else
+      self._readdir(abs, false, cb)
+  }
+}
+
+Glob.prototype._readdir = function (abs, inGlobStar, cb) {
+  if (this.aborted)
+    return
+
+  cb = inflight('readdir\0'+abs+'\0'+inGlobStar, cb)
+  if (!cb)
+    return
+
+  //console.error('RD %j %j', +inGlobStar, abs)
+  if (inGlobStar && !ownProp(this.symlinks, abs))
+    return this._readdirInGlobStar(abs, cb)
+
+  if (ownProp(this.cache, abs)) {
+    var c = this.cache[abs]
+    if (!c || c === 'FILE')
+      return cb()
+
+    if (Array.isArray(c))
+      return cb(null, c)
+  }
+
+  var self = this
+  self.fs.readdir(abs, readdirCb(this, abs, cb))
+}
+
+function readdirCb (self, abs, cb) {
+  return function (er, entries) {
+    if (er)
+      self._readdirError(abs, er, cb)
+    else
+      self._readdirEntries(abs, entries, cb)
+  }
+}
+
+Glob.prototype._readdirEntries = function (abs, entries, cb) {
+  if (this.aborted)
+    return
+
+  // if we haven't asked to stat everything, then just
+  // assume that everything in there exists, so we can avoid
+  // having to stat it a second time.
+  if (!this.mark && !this.stat) {
+    for (var i = 0; i < entries.length; i ++) {
+      var e = entries[i]
+      if (abs === '/')
+        e = abs + e
+      else
+        e = abs + '/' + e
+      this.cache[e] = true
+    }
+  }
+
+  this.cache[abs] = entries
+  return cb(null, entries)
+}
+
+Glob.prototype._readdirError = function (f, er, cb) {
+  if (this.aborted)
+    return
+
+  // handle errors, and cache the information
+  switch (er.code) {
+    case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205
+    case 'ENOTDIR': // totally normal. means it *does* exist.
+      var abs = this._makeAbs(f)
+      this.cache[abs] = 'FILE'
+      if (abs === this.cwdAbs) {
+        var error = new Error(er.code + ' invalid cwd ' + this.cwd)
+        error.path = this.cwd
+        error.code = er.code
+        this.emit('error', error)
+        this.abort()
+      }
+      break
+
+    case 'ENOENT': // not terribly unusual
+    case 'ELOOP':
+    case 'ENAMETOOLONG':
+    case 'UNKNOWN':
+      this.cache[this._makeAbs(f)] = false
+      break
+
+    default: // some unusual error.  Treat as failure.
+      this.cache[this._makeAbs(f)] = false
+      if (this.strict) {
+        this.emit('error', er)
+        // If the error is handled, then we abort
+        // if not, we threw out of here
+        this.abort()
+      }
+      if (!this.silent)
+        console.error('glob error', er)
+      break
+  }
+
+  return cb()
+}
+
+Glob.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar, cb) {
+  var self = this
+  this._readdir(abs, inGlobStar, function (er, entries) {
+    self._processGlobStar2(prefix, read, abs, remain, index, inGlobStar, entries, cb)
+  })
+}
+
+
+Glob.prototype._processGlobStar2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) {
+  //console.error('pgs2', prefix, remain[0], entries)
+
+  // no entries means not a dir, so it can never have matches
+  // foo.txt/** doesn't match foo.txt
+  if (!entries)
+    return cb()
+
+  // test without the globstar, and with every child both below
+  // and replacing the globstar.
+  var remainWithoutGlobStar = remain.slice(1)
+  var gspref = prefix ? [ prefix ] : []
+  var noGlobStar = gspref.concat(remainWithoutGlobStar)
+
+  // the noGlobStar pattern exits the inGlobStar state
+  this._process(noGlobStar, index, false, cb)
+
+  var isSym = this.symlinks[abs]
+  var len = entries.length
+
+  // If it's a symlink, and we're in a globstar, then stop
+  if (isSym && inGlobStar)
+    return cb()
+
+  for (var i = 0; i < len; i++) {
+    var e = entries[i]
+    if (e.charAt(0) === '.' && !this.dot)
+      continue
+
+    // these two cases enter the inGlobStar state
+    var instead = gspref.concat(entries[i], remainWithoutGlobStar)
+    this._process(instead, index, true, cb)
+
+    var below = gspref.concat(entries[i], remain)
+    this._process(below, index, true, cb)
+  }
+
+  cb()
+}
+
+Glob.prototype._processSimple = function (prefix, index, cb) {
+  // XXX review this.  Shouldn't it be doing the mounting etc
+  // before doing stat?  kinda weird?
+  var self = this
+  this._stat(prefix, function (er, exists) {
+    self._processSimple2(prefix, index, er, exists, cb)
+  })
+}
+Glob.prototype._processSimple2 = function (prefix, index, er, exists, cb) {
+
+  //console.error('ps2', prefix, exists)
+
+  if (!this.matches[index])
+    this.matches[index] = Object.create(null)
+
+  // If it doesn't exist, then just mark the lack of results
+  if (!exists)
+    return cb()
+
+  if (prefix && isAbsolute(prefix) && !this.nomount) {
+    var trail = /[\/\\]$/.test(prefix)
+    if (prefix.charAt(0) === '/') {
+      prefix = path.join(this.root, prefix)
+    } else {
+      prefix = path.resolve(this.root, prefix)
+      if (trail)
+        prefix += '/'
+    }
+  }
+
+  if (process.platform === 'win32')
+    prefix = prefix.replace(/\\/g, '/')
+
+  // Mark this as a match
+  this._emitMatch(index, prefix)
+  cb()
+}
+
+// Returns either 'DIR', 'FILE', or false
+Glob.prototype._stat = function (f, cb) {
+  var abs = this._makeAbs(f)
+  var needDir = f.slice(-1) === '/'
+
+  if (f.length > this.maxLength)
+    return cb()
+
+  if (!this.stat && ownProp(this.cache, abs)) {
+    var c = this.cache[abs]
+
+    if (Array.isArray(c))
+      c = 'DIR'
+
+    // It exists, but maybe not how we need it
+    if (!needDir || c === 'DIR')
+      return cb(null, c)
+
+    if (needDir && c === 'FILE')
+      return cb()
+
+    // otherwise we have to stat, because maybe c=true
+    // if we know it exists, but not what it is.
+  }
+
+  var exists
+  var stat = this.statCache[abs]
+  if (stat !== undefined) {
+    if (stat === false)
+      return cb(null, stat)
+    else {
+      var type = stat.isDirectory() ? 'DIR' : 'FILE'
+      if (needDir && type === 'FILE')
+        return cb()
+      else
+        return cb(null, type, stat)
+    }
+  }
+
+  var self = this
+  var statcb = inflight('stat\0' + abs, lstatcb_)
+  if (statcb)
+    self.fs.lstat(abs, statcb)
+
+  function lstatcb_ (er, lstat) {
+    if (lstat && lstat.isSymbolicLink()) {
+      // If it's a symlink, then treat it as the target, unless
+      // the target does not exist, then treat it as a file.
+      return self.fs.stat(abs, function (er, stat) {
+        if (er)
+          self._stat2(f, abs, null, lstat, cb)
+        else
+          self._stat2(f, abs, er, stat, cb)
+      })
+    } else {
+      self._stat2(f, abs, er, lstat, cb)
+    }
+  }
+}
+
+Glob.prototype._stat2 = function (f, abs, er, stat, cb) {
+  if (er && (er.code === 'ENOENT' || er.code === 'ENOTDIR')) {
+    this.statCache[abs] = false
+    return cb()
+  }
+
+  var needDir = f.slice(-1) === '/'
+  this.statCache[abs] = stat
+
+  if (abs.slice(-1) === '/' && stat && !stat.isDirectory())
+    return cb(null, false, stat)
+
+  var c = true
+  if (stat)
+    c = stat.isDirectory() ? 'DIR' : 'FILE'
+  this.cache[abs] = this.cache[abs] || c
+
+  if (needDir && c === 'FILE')
+    return cb()
+
+  return cb(null, c, stat)
+}
diff --git a/node_modules/glob/package.json b/node_modules/glob/package.json
new file mode 100644
index 0000000..5940b64
--- /dev/null
+++ b/node_modules/glob/package.json
@@ -0,0 +1,55 @@
+{
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "name": "glob",
+  "description": "a little globber",
+  "version": "7.2.3",
+  "publishConfig": {
+    "tag": "v7-legacy"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/isaacs/node-glob.git"
+  },
+  "main": "glob.js",
+  "files": [
+    "glob.js",
+    "sync.js",
+    "common.js"
+  ],
+  "engines": {
+    "node": "*"
+  },
+  "dependencies": {
+    "fs.realpath": "^1.0.0",
+    "inflight": "^1.0.4",
+    "inherits": "2",
+    "minimatch": "^3.1.1",
+    "once": "^1.3.0",
+    "path-is-absolute": "^1.0.0"
+  },
+  "devDependencies": {
+    "memfs": "^3.2.0",
+    "mkdirp": "0",
+    "rimraf": "^2.2.8",
+    "tap": "^15.0.6",
+    "tick": "0.0.6"
+  },
+  "tap": {
+    "before": "test/00-setup.js",
+    "after": "test/zz-cleanup.js",
+    "jobs": 1
+  },
+  "scripts": {
+    "prepublish": "npm run benchclean",
+    "profclean": "rm -f v8.log profile.txt",
+    "test": "tap",
+    "test-regen": "npm run profclean && TEST_REGEN=1 node test/00-setup.js",
+    "bench": "bash benchmark.sh",
+    "prof": "bash prof.sh && cat profile.txt",
+    "benchclean": "node benchclean.js"
+  },
+  "license": "ISC",
+  "funding": {
+    "url": "https://github.com/sponsors/isaacs"
+  }
+}
diff --git a/node_modules/glob/sync.js b/node_modules/glob/sync.js
new file mode 100644
index 0000000..2c4f480
--- /dev/null
+++ b/node_modules/glob/sync.js
@@ -0,0 +1,486 @@
+module.exports = globSync
+globSync.GlobSync = GlobSync
+
+var rp = require('fs.realpath')
+var minimatch = require('minimatch')
+var Minimatch = minimatch.Minimatch
+var Glob = require('./glob.js').Glob
+var util = require('util')
+var path = require('path')
+var assert = require('assert')
+var isAbsolute = require('path-is-absolute')
+var common = require('./common.js')
+var setopts = common.setopts
+var ownProp = common.ownProp
+var childrenIgnored = common.childrenIgnored
+var isIgnored = common.isIgnored
+
+function globSync (pattern, options) {
+  if (typeof options === 'function' || arguments.length === 3)
+    throw new TypeError('callback provided to sync glob\n'+
+                        'See: https://github.com/isaacs/node-glob/issues/167')
+
+  return new GlobSync(pattern, options).found
+}
+
+function GlobSync (pattern, options) {
+  if (!pattern)
+    throw new Error('must provide pattern')
+
+  if (typeof options === 'function' || arguments.length === 3)
+    throw new TypeError('callback provided to sync glob\n'+
+                        'See: https://github.com/isaacs/node-glob/issues/167')
+
+  if (!(this instanceof GlobSync))
+    return new GlobSync(pattern, options)
+
+  setopts(this, pattern, options)
+
+  if (this.noprocess)
+    return this
+
+  var n = this.minimatch.set.length
+  this.matches = new Array(n)
+  for (var i = 0; i < n; i ++) {
+    this._process(this.minimatch.set[i], i, false)
+  }
+  this._finish()
+}
+
+GlobSync.prototype._finish = function () {
+  assert.ok(this instanceof GlobSync)
+  if (this.realpath) {
+    var self = this
+    this.matches.forEach(function (matchset, index) {
+      var set = self.matches[index] = Object.create(null)
+      for (var p in matchset) {
+        try {
+          p = self._makeAbs(p)
+          var real = rp.realpathSync(p, self.realpathCache)
+          set[real] = true
+        } catch (er) {
+          if (er.syscall === 'stat')
+            set[self._makeAbs(p)] = true
+          else
+            throw er
+        }
+      }
+    })
+  }
+  common.finish(this)
+}
+
+
+GlobSync.prototype._process = function (pattern, index, inGlobStar) {
+  assert.ok(this instanceof GlobSync)
+
+  // Get the first [n] parts of pattern that are all strings.
+  var n = 0
+  while (typeof pattern[n] === 'string') {
+    n ++
+  }
+  // now n is the index of the first one that is *not* a string.
+
+  // See if there's anything else
+  var prefix
+  switch (n) {
+    // if not, then this is rather simple
+    case pattern.length:
+      this._processSimple(pattern.join('/'), index)
+      return
+
+    case 0:
+      // pattern *starts* with some non-trivial item.
+      // going to readdir(cwd), but not include the prefix in matches.
+      prefix = null
+      break
+
+    default:
+      // pattern has some string bits in the front.
+      // whatever it starts with, whether that's 'absolute' like /foo/bar,
+      // or 'relative' like '../baz'
+      prefix = pattern.slice(0, n).join('/')
+      break
+  }
+
+  var remain = pattern.slice(n)
+
+  // get the list of entries.
+  var read
+  if (prefix === null)
+    read = '.'
+  else if (isAbsolute(prefix) ||
+      isAbsolute(pattern.map(function (p) {
+        return typeof p === 'string' ? p : '[*]'
+      }).join('/'))) {
+    if (!prefix || !isAbsolute(prefix))
+      prefix = '/' + prefix
+    read = prefix
+  } else
+    read = prefix
+
+  var abs = this._makeAbs(read)
+
+  //if ignored, skip processing
+  if (childrenIgnored(this, read))
+    return
+
+  var isGlobStar = remain[0] === minimatch.GLOBSTAR
+  if (isGlobStar)
+    this._processGlobStar(prefix, read, abs, remain, index, inGlobStar)
+  else
+    this._processReaddir(prefix, read, abs, remain, index, inGlobStar)
+}
+
+
+GlobSync.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar) {
+  var entries = this._readdir(abs, inGlobStar)
+
+  // if the abs isn't a dir, then nothing can match!
+  if (!entries)
+    return
+
+  // It will only match dot entries if it starts with a dot, or if
+  // dot is set.  Stuff like @(.foo|.bar) isn't allowed.
+  var pn = remain[0]
+  var negate = !!this.minimatch.negate
+  var rawGlob = pn._glob
+  var dotOk = this.dot || rawGlob.charAt(0) === '.'
+
+  var matchedEntries = []
+  for (var i = 0; i < entries.length; i++) {
+    var e = entries[i]
+    if (e.charAt(0) !== '.' || dotOk) {
+      var m
+      if (negate && !prefix) {
+        m = !e.match(pn)
+      } else {
+        m = e.match(pn)
+      }
+      if (m)
+        matchedEntries.push(e)
+    }
+  }
+
+  var len = matchedEntries.length
+  // If there are no matched entries, then nothing matches.
+  if (len === 0)
+    return
+
+  // if this is the last remaining pattern bit, then no need for
+  // an additional stat *unless* the user has specified mark or
+  // stat explicitly.  We know they exist, since readdir returned
+  // them.
+
+  if (remain.length === 1 && !this.mark && !this.stat) {
+    if (!this.matches[index])
+      this.matches[index] = Object.create(null)
+
+    for (var i = 0; i < len; i ++) {
+      var e = matchedEntries[i]
+      if (prefix) {
+        if (prefix.slice(-1) !== '/')
+          e = prefix + '/' + e
+        else
+          e = prefix + e
+      }
+
+      if (e.charAt(0) === '/' && !this.nomount) {
+        e = path.join(this.root, e)
+      }
+      this._emitMatch(index, e)
+    }
+    // This was the last one, and no stats were needed
+    return
+  }
+
+  // now test all matched entries as stand-ins for that part
+  // of the pattern.
+  remain.shift()
+  for (var i = 0; i < len; i ++) {
+    var e = matchedEntries[i]
+    var newPattern
+    if (prefix)
+      newPattern = [prefix, e]
+    else
+      newPattern = [e]
+    this._process(newPattern.concat(remain), index, inGlobStar)
+  }
+}
+
+
+GlobSync.prototype._emitMatch = function (index, e) {
+  if (isIgnored(this, e))
+    return
+
+  var abs = this._makeAbs(e)
+
+  if (this.mark)
+    e = this._mark(e)
+
+  if (this.absolute) {
+    e = abs
+  }
+
+  if (this.matches[index][e])
+    return
+
+  if (this.nodir) {
+    var c = this.cache[abs]
+    if (c === 'DIR' || Array.isArray(c))
+      return
+  }
+
+  this.matches[index][e] = true
+
+  if (this.stat)
+    this._stat(e)
+}
+
+
+GlobSync.prototype._readdirInGlobStar = function (abs) {
+  // follow all symlinked directories forever
+  // just proceed as if this is a non-globstar situation
+  if (this.follow)
+    return this._readdir(abs, false)
+
+  var entries
+  var lstat
+  var stat
+  try {
+    lstat = this.fs.lstatSync(abs)
+  } catch (er) {
+    if (er.code === 'ENOENT') {
+      // lstat failed, doesn't exist
+      return null
+    }
+  }
+
+  var isSym = lstat && lstat.isSymbolicLink()
+  this.symlinks[abs] = isSym
+
+  // If it's not a symlink or a dir, then it's definitely a regular file.
+  // don't bother doing a readdir in that case.
+  if (!isSym && lstat && !lstat.isDirectory())
+    this.cache[abs] = 'FILE'
+  else
+    entries = this._readdir(abs, false)
+
+  return entries
+}
+
+GlobSync.prototype._readdir = function (abs, inGlobStar) {
+  var entries
+
+  if (inGlobStar && !ownProp(this.symlinks, abs))
+    return this._readdirInGlobStar(abs)
+
+  if (ownProp(this.cache, abs)) {
+    var c = this.cache[abs]
+    if (!c || c === 'FILE')
+      return null
+
+    if (Array.isArray(c))
+      return c
+  }
+
+  try {
+    return this._readdirEntries(abs, this.fs.readdirSync(abs))
+  } catch (er) {
+    this._readdirError(abs, er)
+    return null
+  }
+}
+
+GlobSync.prototype._readdirEntries = function (abs, entries) {
+  // if we haven't asked to stat everything, then just
+  // assume that everything in there exists, so we can avoid
+  // having to stat it a second time.
+  if (!this.mark && !this.stat) {
+    for (var i = 0; i < entries.length; i ++) {
+      var e = entries[i]
+      if (abs === '/')
+        e = abs + e
+      else
+        e = abs + '/' + e
+      this.cache[e] = true
+    }
+  }
+
+  this.cache[abs] = entries
+
+  // mark and cache dir-ness
+  return entries
+}
+
+GlobSync.prototype._readdirError = function (f, er) {
+  // handle errors, and cache the information
+  switch (er.code) {
+    case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205
+    case 'ENOTDIR': // totally normal. means it *does* exist.
+      var abs = this._makeAbs(f)
+      this.cache[abs] = 'FILE'
+      if (abs === this.cwdAbs) {
+        var error = new Error(er.code + ' invalid cwd ' + this.cwd)
+        error.path = this.cwd
+        error.code = er.code
+        throw error
+      }
+      break
+
+    case 'ENOENT': // not terribly unusual
+    case 'ELOOP':
+    case 'ENAMETOOLONG':
+    case 'UNKNOWN':
+      this.cache[this._makeAbs(f)] = false
+      break
+
+    default: // some unusual error.  Treat as failure.
+      this.cache[this._makeAbs(f)] = false
+      if (this.strict)
+        throw er
+      if (!this.silent)
+        console.error('glob error', er)
+      break
+  }
+}
+
+GlobSync.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar) {
+
+  var entries = this._readdir(abs, inGlobStar)
+
+  // no entries means not a dir, so it can never have matches
+  // foo.txt/** doesn't match foo.txt
+  if (!entries)
+    return
+
+  // test without the globstar, and with every child both below
+  // and replacing the globstar.
+  var remainWithoutGlobStar = remain.slice(1)
+  var gspref = prefix ? [ prefix ] : []
+  var noGlobStar = gspref.concat(remainWithoutGlobStar)
+
+  // the noGlobStar pattern exits the inGlobStar state
+  this._process(noGlobStar, index, false)
+
+  var len = entries.length
+  var isSym = this.symlinks[abs]
+
+  // If it's a symlink, and we're in a globstar, then stop
+  if (isSym && inGlobStar)
+    return
+
+  for (var i = 0; i < len; i++) {
+    var e = entries[i]
+    if (e.charAt(0) === '.' && !this.dot)
+      continue
+
+    // these two cases enter the inGlobStar state
+    var instead = gspref.concat(entries[i], remainWithoutGlobStar)
+    this._process(instead, index, true)
+
+    var below = gspref.concat(entries[i], remain)
+    this._process(below, index, true)
+  }
+}
+
+GlobSync.prototype._processSimple = function (prefix, index) {
+  // XXX review this.  Shouldn't it be doing the mounting etc
+  // before doing stat?  kinda weird?
+  var exists = this._stat(prefix)
+
+  if (!this.matches[index])
+    this.matches[index] = Object.create(null)
+
+  // If it doesn't exist, then just mark the lack of results
+  if (!exists)
+    return
+
+  if (prefix && isAbsolute(prefix) && !this.nomount) {
+    var trail = /[\/\\]$/.test(prefix)
+    if (prefix.charAt(0) === '/') {
+      prefix = path.join(this.root, prefix)
+    } else {
+      prefix = path.resolve(this.root, prefix)
+      if (trail)
+        prefix += '/'
+    }
+  }
+
+  if (process.platform === 'win32')
+    prefix = prefix.replace(/\\/g, '/')
+
+  // Mark this as a match
+  this._emitMatch(index, prefix)
+}
+
+// Returns either 'DIR', 'FILE', or false
+GlobSync.prototype._stat = function (f) {
+  var abs = this._makeAbs(f)
+  var needDir = f.slice(-1) === '/'
+
+  if (f.length > this.maxLength)
+    return false
+
+  if (!this.stat && ownProp(this.cache, abs)) {
+    var c = this.cache[abs]
+
+    if (Array.isArray(c))
+      c = 'DIR'
+
+    // It exists, but maybe not how we need it
+    if (!needDir || c === 'DIR')
+      return c
+
+    if (needDir && c === 'FILE')
+      return false
+
+    // otherwise we have to stat, because maybe c=true
+    // if we know it exists, but not what it is.
+  }
+
+  var exists
+  var stat = this.statCache[abs]
+  if (!stat) {
+    var lstat
+    try {
+      lstat = this.fs.lstatSync(abs)
+    } catch (er) {
+      if (er && (er.code === 'ENOENT' || er.code === 'ENOTDIR')) {
+        this.statCache[abs] = false
+        return false
+      }
+    }
+
+    if (lstat && lstat.isSymbolicLink()) {
+      try {
+        stat = this.fs.statSync(abs)
+      } catch (er) {
+        stat = lstat
+      }
+    } else {
+      stat = lstat
+    }
+  }
+
+  this.statCache[abs] = stat
+
+  var c = true
+  if (stat)
+    c = stat.isDirectory() ? 'DIR' : 'FILE'
+
+  this.cache[abs] = this.cache[abs] || c
+
+  if (needDir && c === 'FILE')
+    return false
+
+  return c
+}
+
+GlobSync.prototype._mark = function (p) {
+  return common.mark(this, p)
+}
+
+GlobSync.prototype._makeAbs = function (f) {
+  return common.makeAbs(this, f)
+}
diff --git a/node_modules/graceful-fs/LICENSE b/node_modules/graceful-fs/LICENSE
new file mode 100644
index 0000000..e906a25
--- /dev/null
+++ b/node_modules/graceful-fs/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) 2011-2022 Isaac Z. Schlueter, Ben Noordhuis, and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/graceful-fs/README.md b/node_modules/graceful-fs/README.md
new file mode 100644
index 0000000..82d6e4d
--- /dev/null
+++ b/node_modules/graceful-fs/README.md
@@ -0,0 +1,143 @@
+# graceful-fs
+
+graceful-fs functions as a drop-in replacement for the fs module,
+making various improvements.
+
+The improvements are meant to normalize behavior across different
+platforms and environments, and to make filesystem access more
+resilient to errors.
+
+## Improvements over [fs module](https://nodejs.org/api/fs.html)
+
+* Queues up `open` and `readdir` calls, and retries them once
+  something closes if there is an EMFILE error from too many file
+  descriptors.
+* fixes `lchmod` for Node versions prior to 0.6.2.
+* implements `fs.lutimes` if possible. Otherwise it becomes a noop.
+* ignores `EINVAL` and `EPERM` errors in `chown`, `fchown` or
+  `lchown` if the user isn't root.
+* makes `lchmod` and `lchown` become noops, if not available.
+* retries reading a file if `read` results in EAGAIN error.
+
+On Windows, it retries renaming a file for up to one second if `EACCESS`
+or `EPERM` error occurs, likely because antivirus software has locked
+the directory.
+
+## USAGE
+
+```javascript
+// use just like fs
+var fs = require('graceful-fs')
+
+// now go and do stuff with it...
+fs.readFile('some-file-or-whatever', (err, data) => {
+  // Do stuff here.
+})
+```
+
+## Sync methods
+
+This module cannot intercept or handle `EMFILE` or `ENFILE` errors from sync
+methods.  If you use sync methods which open file descriptors then you are
+responsible for dealing with any errors.
+
+This is a known limitation, not a bug.
+
+## Global Patching
+
+If you want to patch the global fs module (or any other fs-like
+module) you can do this:
+
+```javascript
+// Make sure to read the caveat below.
+var realFs = require('fs')
+var gracefulFs = require('graceful-fs')
+gracefulFs.gracefulify(realFs)
+```
+
+This should only ever be done at the top-level application layer, in
+order to delay on EMFILE errors from any fs-using dependencies.  You
+should **not** do this in a library, because it can cause unexpected
+delays in other parts of the program.
+
+## Changes
+
+This module is fairly stable at this point, and used by a lot of
+things.  That being said, because it implements a subtle behavior
+change in a core part of the node API, even modest changes can be
+extremely breaking, and the versioning is thus biased towards
+bumping the major when in doubt.
+
+The main change between major versions has been switching between
+providing a fully-patched `fs` module vs monkey-patching the node core
+builtin, and the approach by which a non-monkey-patched `fs` was
+created.
+
+The goal is to trade `EMFILE` errors for slower fs operations.  So, if
+you try to open a zillion files, rather than crashing, `open`
+operations will be queued up and wait for something else to `close`.
+
+There are advantages to each approach.  Monkey-patching the fs means
+that no `EMFILE` errors can possibly occur anywhere in your
+application, because everything is using the same core `fs` module,
+which is patched.  However, it can also obviously cause undesirable
+side-effects, especially if the module is loaded multiple times.
+
+Implementing a separate-but-identical patched `fs` module is more
+surgical (and doesn't run the risk of patching multiple times), but
+also imposes the challenge of keeping in sync with the core module.
+
+The current approach loads the `fs` module, and then creates a
+lookalike object that has all the same methods, except a few that are
+patched.  It is safe to use in all versions of Node from 0.8 through
+7.0.
+
+### v4
+
+* Do not monkey-patch the fs module.  This module may now be used as a
+  drop-in dep, and users can opt into monkey-patching the fs builtin
+  if their app requires it.
+
+### v3
+
+* Monkey-patch fs, because the eval approach no longer works on recent
+  node.
+* fixed possible type-error throw if rename fails on windows
+* verify that we *never* get EMFILE errors
+* Ignore ENOSYS from chmod/chown
+* clarify that graceful-fs must be used as a drop-in
+
+### v2.1.0
+
+* Use eval rather than monkey-patching fs.
+* readdir: Always sort the results
+* win32: requeue a file if error has an OK status
+
+### v2.0
+
+* A return to monkey patching
+* wrap process.cwd
+
+### v1.1
+
+* wrap readFile
+* Wrap fs.writeFile.
+* readdir protection
+* Don't clobber the fs builtin
+* Handle fs.read EAGAIN errors by trying again
+* Expose the curOpen counter
+* No-op lchown/lchmod if not implemented
+* fs.rename patch only for win32
+* Patch fs.rename to handle AV software on Windows
+* Close #4 Chown should not fail on einval or eperm if non-root
+* Fix isaacs/fstream#1 Only wrap fs one time
+* Fix #3 Start at 1024 max files, then back off on EMFILE
+* lutimes that doens't blow up on Linux
+* A full on-rewrite using a queue instead of just swallowing the EMFILE error
+* Wrap Read/Write streams as well
+
+### 1.0
+
+* Update engines for node 0.6
+* Be lstat-graceful on Windows
+* first
diff --git a/node_modules/graceful-fs/clone.js b/node_modules/graceful-fs/clone.js
new file mode 100644
index 0000000..dff3cc8
--- /dev/null
+++ b/node_modules/graceful-fs/clone.js
@@ -0,0 +1,23 @@
+'use strict'
+
+module.exports = clone
+
+var getPrototypeOf = Object.getPrototypeOf || function (obj) {
+  return obj.__proto__
+}
+
+function clone (obj) {
+  if (obj === null || typeof obj !== 'object')
+    return obj
+
+  if (obj instanceof Object)
+    var copy = { __proto__: getPrototypeOf(obj) }
+  else
+    var copy = Object.create(null)
+
+  Object.getOwnPropertyNames(obj).forEach(function (key) {
+    Object.defineProperty(copy, key, Object.getOwnPropertyDescriptor(obj, key))
+  })
+
+  return copy
+}
diff --git a/node_modules/graceful-fs/graceful-fs.js b/node_modules/graceful-fs/graceful-fs.js
new file mode 100644
index 0000000..8d5b89e
--- /dev/null
+++ b/node_modules/graceful-fs/graceful-fs.js
@@ -0,0 +1,448 @@
+var fs = require('fs')
+var polyfills = require('./polyfills.js')
+var legacy = require('./legacy-streams.js')
+var clone = require('./clone.js')
+
+var util = require('util')
+
+/* istanbul ignore next - node 0.x polyfill */
+var gracefulQueue
+var previousSymbol
+
+/* istanbul ignore else - node 0.x polyfill */
+if (typeof Symbol === 'function' && typeof Symbol.for === 'function') {
+  gracefulQueue = Symbol.for('graceful-fs.queue')
+  // This is used in testing by future versions
+  previousSymbol = Symbol.for('graceful-fs.previous')
+} else {
+  gracefulQueue = '___graceful-fs.queue'
+  previousSymbol = '___graceful-fs.previous'
+}
+
+function noop () {}
+
+function publishQueue(context, queue) {
+  Object.defineProperty(context, gracefulQueue, {
+    get: function() {
+      return queue
+    }
+  })
+}
+
+var debug = noop
+if (util.debuglog)
+  debug = util.debuglog('gfs4')
+else if (/\bgfs4\b/i.test(process.env.NODE_DEBUG || ''))
+  debug = function() {
+    var m = util.format.apply(util, arguments)
+    m = 'GFS4: ' + m.split(/\n/).join('\nGFS4: ')
+    console.error(m)
+  }
+
+// Once time initialization
+if (!fs[gracefulQueue]) {
+  // This queue can be shared by multiple loaded instances
+  var queue = global[gracefulQueue] || []
+  publishQueue(fs, queue)
+
+  // Patch fs.close/closeSync to shared queue version, because we need
+  // to retry() whenever a close happens *anywhere* in the program.
+  // This is essential when multiple graceful-fs instances are
+  // in play at the same time.
+  fs.close = (function (fs$close) {
+    function close (fd, cb) {
+      return fs$close.call(fs, fd, function (err) {
+        // This function uses the graceful-fs shared queue
+        if (!err) {
+          resetQueue()
+        }
+
+        if (typeof cb === 'function')
+          cb.apply(this, arguments)
+      })
+    }
+
+    Object.defineProperty(close, previousSymbol, {
+      value: fs$close
+    })
+    return close
+  })(fs.close)
+
+  fs.closeSync = (function (fs$closeSync) {
+    function closeSync (fd) {
+      // This function uses the graceful-fs shared queue
+      fs$closeSync.apply(fs, arguments)
+      resetQueue()
+    }
+
+    Object.defineProperty(closeSync, previousSymbol, {
+      value: fs$closeSync
+    })
+    return closeSync
+  })(fs.closeSync)
+
+  if (/\bgfs4\b/i.test(process.env.NODE_DEBUG || '')) {
+    process.on('exit', function() {
+      debug(fs[gracefulQueue])
+      require('assert').equal(fs[gracefulQueue].length, 0)
+    })
+  }
+}
+
+if (!global[gracefulQueue]) {
+  publishQueue(global, fs[gracefulQueue]);
+}
+
+module.exports = patch(clone(fs))
+if (process.env.TEST_GRACEFUL_FS_GLOBAL_PATCH && !fs.__patched) {
+    module.exports = patch(fs)
+    fs.__patched = true;
+}
+
+function patch (fs) {
+  // Everything that references the open() function needs to be in here
+  polyfills(fs)
+  fs.gracefulify = patch
+
+  fs.createReadStream = createReadStream
+  fs.createWriteStream = createWriteStream
+  var fs$readFile = fs.readFile
+  fs.readFile = readFile
+  function readFile (path, options, cb) {
+    if (typeof options === 'function')
+      cb = options, options = null
+
+    return go$readFile(path, options, cb)
+
+    function go$readFile (path, options, cb, startTime) {
+      return fs$readFile(path, options, function (err) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([go$readFile, [path, options, cb], err, startTime || Date.now(), Date.now()])
+        else {
+          if (typeof cb === 'function')
+            cb.apply(this, arguments)
+        }
+      })
+    }
+  }
+
+  var fs$writeFile = fs.writeFile
+  fs.writeFile = writeFile
+  function writeFile (path, data, options, cb) {
+    if (typeof options === 'function')
+      cb = options, options = null
+
+    return go$writeFile(path, data, options, cb)
+
+    function go$writeFile (path, data, options, cb, startTime) {
+      return fs$writeFile(path, data, options, function (err) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([go$writeFile, [path, data, options, cb], err, startTime || Date.now(), Date.now()])
+        else {
+          if (typeof cb === 'function')
+            cb.apply(this, arguments)
+        }
+      })
+    }
+  }
+
+  var fs$appendFile = fs.appendFile
+  if (fs$appendFile)
+    fs.appendFile = appendFile
+  function appendFile (path, data, options, cb) {
+    if (typeof options === 'function')
+      cb = options, options = null
+
+    return go$appendFile(path, data, options, cb)
+
+    function go$appendFile (path, data, options, cb, startTime) {
+      return fs$appendFile(path, data, options, function (err) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([go$appendFile, [path, data, options, cb], err, startTime || Date.now(), Date.now()])
+        else {
+          if (typeof cb === 'function')
+            cb.apply(this, arguments)
+        }
+      })
+    }
+  }
+
+  var fs$copyFile = fs.copyFile
+  if (fs$copyFile)
+    fs.copyFile = copyFile
+  function copyFile (src, dest, flags, cb) {
+    if (typeof flags === 'function') {
+      cb = flags
+      flags = 0
+    }
+    return go$copyFile(src, dest, flags, cb)
+
+    function go$copyFile (src, dest, flags, cb, startTime) {
+      return fs$copyFile(src, dest, flags, function (err) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([go$copyFile, [src, dest, flags, cb], err, startTime || Date.now(), Date.now()])
+        else {
+          if (typeof cb === 'function')
+            cb.apply(this, arguments)
+        }
+      })
+    }
+  }
+
+  var fs$readdir = fs.readdir
+  fs.readdir = readdir
+  var noReaddirOptionVersions = /^v[0-5]\./
+  function readdir (path, options, cb) {
+    if (typeof options === 'function')
+      cb = options, options = null
+
+    var go$readdir = noReaddirOptionVersions.test(process.version)
+      ? function go$readdir (path, options, cb, startTime) {
+        return fs$readdir(path, fs$readdirCallback(
+          path, options, cb, startTime
+        ))
+      }
+      : function go$readdir (path, options, cb, startTime) {
+        return fs$readdir(path, options, fs$readdirCallback(
+          path, options, cb, startTime
+        ))
+      }
+
+    return go$readdir(path, options, cb)
+
+    function fs$readdirCallback (path, options, cb, startTime) {
+      return function (err, files) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([
+            go$readdir,
+            [path, options, cb],
+            err,
+            startTime || Date.now(),
+            Date.now()
+          ])
+        else {
+          if (files && files.sort)
+            files.sort()
+
+          if (typeof cb === 'function')
+            cb.call(this, err, files)
+        }
+      }
+    }
+  }
+
+  if (process.version.substr(0, 4) === 'v0.8') {
+    var legStreams = legacy(fs)
+    ReadStream = legStreams.ReadStream
+    WriteStream = legStreams.WriteStream
+  }
+
+  var fs$ReadStream = fs.ReadStream
+  if (fs$ReadStream) {
+    ReadStream.prototype = Object.create(fs$ReadStream.prototype)
+    ReadStream.prototype.open = ReadStream$open
+  }
+
+  var fs$WriteStream = fs.WriteStream
+  if (fs$WriteStream) {
+    WriteStream.prototype = Object.create(fs$WriteStream.prototype)
+    WriteStream.prototype.open = WriteStream$open
+  }
+
+  Object.defineProperty(fs, 'ReadStream', {
+    get: function () {
+      return ReadStream
+    },
+    set: function (val) {
+      ReadStream = val
+    },
+    enumerable: true,
+    configurable: true
+  })
+  Object.defineProperty(fs, 'WriteStream', {
+    get: function () {
+      return WriteStream
+    },
+    set: function (val) {
+      WriteStream = val
+    },
+    enumerable: true,
+    configurable: true
+  })
+
+  // legacy names
+  var FileReadStream = ReadStream
+  Object.defineProperty(fs, 'FileReadStream', {
+    get: function () {
+      return FileReadStream
+    },
+    set: function (val) {
+      FileReadStream = val
+    },
+    enumerable: true,
+    configurable: true
+  })
+  var FileWriteStream = WriteStream
+  Object.defineProperty(fs, 'FileWriteStream', {
+    get: function () {
+      return FileWriteStream
+    },
+    set: function (val) {
+      FileWriteStream = val
+    },
+    enumerable: true,
+    configurable: true
+  })
+
+  function ReadStream (path, options) {
+    if (this instanceof ReadStream)
+      return fs$ReadStream.apply(this, arguments), this
+    else
+      return ReadStream.apply(Object.create(ReadStream.prototype), arguments)
+  }
+
+  function ReadStream$open () {
+    var that = this
+    open(that.path, that.flags, that.mode, function (err, fd) {
+      if (err) {
+        if (that.autoClose)
+          that.destroy()
+
+        that.emit('error', err)
+      } else {
+        that.fd = fd
+        that.emit('open', fd)
+        that.read()
+      }
+    })
+  }
+
+  function WriteStream (path, options) {
+    if (this instanceof WriteStream)
+      return fs$WriteStream.apply(this, arguments), this
+    else
+      return WriteStream.apply(Object.create(WriteStream.prototype), arguments)
+  }
+
+  function WriteStream$open () {
+    var that = this
+    open(that.path, that.flags, that.mode, function (err, fd) {
+      if (err) {
+        that.destroy()
+        that.emit('error', err)
+      } else {
+        that.fd = fd
+        that.emit('open', fd)
+      }
+    })
+  }
+
+  function createReadStream (path, options) {
+    return new fs.ReadStream(path, options)
+  }
+
+  function createWriteStream (path, options) {
+    return new fs.WriteStream(path, options)
+  }
+
+  var fs$open = fs.open
+  fs.open = open
+  function open (path, flags, mode, cb) {
+    if (typeof mode === 'function')
+      cb = mode, mode = null
+
+    return go$open(path, flags, mode, cb)
+
+    function go$open (path, flags, mode, cb, startTime) {
+      return fs$open(path, flags, mode, function (err, fd) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([go$open, [path, flags, mode, cb], err, startTime || Date.now(), Date.now()])
+        else {
+          if (typeof cb === 'function')
+            cb.apply(this, arguments)
+        }
+      })
+    }
+  }
+
+  return fs
+}
+
+function enqueue (elem) {
+  debug('ENQUEUE', elem[0].name, elem[1])
+  fs[gracefulQueue].push(elem)
+  retry()
+}
+
+// keep track of the timeout between retry() calls
+var retryTimer
+
+// reset the startTime and lastTime to now
+// this resets the start of the 60 second overall timeout as well as the
+// delay between attempts so that we'll retry these jobs sooner
+function resetQueue () {
+  var now = Date.now()
+  for (var i = 0; i < fs[gracefulQueue].length; ++i) {
+    // entries that are only a length of 2 are from an older version, don't
+    // bother modifying those since they'll be retried anyway.
+    if (fs[gracefulQueue][i].length > 2) {
+      fs[gracefulQueue][i][3] = now // startTime
+      fs[gracefulQueue][i][4] = now // lastTime
+    }
+  }
+  // call retry to make sure we're actively processing the queue
+  retry()
+}
+
+function retry () {
+  // clear the timer and remove it to help prevent unintended concurrency
+  clearTimeout(retryTimer)
+  retryTimer = undefined
+
+  if (fs[gracefulQueue].length === 0)
+    return
+
+  var elem = fs[gracefulQueue].shift()
+  var fn = elem[0]
+  var args = elem[1]
+  // these items may be unset if they were added by an older graceful-fs
+  var err = elem[2]
+  var startTime = elem[3]
+  var lastTime = elem[4]
+
+  // if we don't have a startTime we have no way of knowing if we've waited
+  // long enough, so go ahead and retry this item now
+  if (startTime === undefined) {
+    debug('RETRY', fn.name, args)
+    fn.apply(null, args)
+  } else if (Date.now() - startTime >= 60000) {
+    // it's been more than 60 seconds total, bail now
+    debug('TIMEOUT', fn.name, args)
+    var cb = args.pop()
+    if (typeof cb === 'function')
+      cb.call(null, err)
+  } else {
+    // the amount of time between the last attempt and right now
+    var sinceAttempt = Date.now() - lastTime
+    // the amount of time between when we first tried, and when we last tried
+    // rounded up to at least 1
+    var sinceStart = Math.max(lastTime - startTime, 1)
+    // backoff. wait longer than the total time we've been retrying, but only
+    // up to a maximum of 100ms
+    var desiredDelay = Math.min(sinceStart * 1.2, 100)
+    // it's been long enough since the last retry, do it again
+    if (sinceAttempt >= desiredDelay) {
+      debug('RETRY', fn.name, args)
+      fn.apply(null, args.concat([startTime]))
+    } else {
+      // if we can't do this job yet, push it to the end of the queue
+      // and let the next iteration check again
+      fs[gracefulQueue].push(elem)
+    }
+  }
+
+  // schedule our next run if one isn't already scheduled
+  if (retryTimer === undefined) {
+    retryTimer = setTimeout(retry, 0)
+  }
+}
diff --git a/node_modules/graceful-fs/legacy-streams.js b/node_modules/graceful-fs/legacy-streams.js
new file mode 100644
index 0000000..d617b50
--- /dev/null
+++ b/node_modules/graceful-fs/legacy-streams.js
@@ -0,0 +1,118 @@
+var Stream = require('stream').Stream
+
+module.exports = legacy
+
+function legacy (fs) {
+  return {
+    ReadStream: ReadStream,
+    WriteStream: WriteStream
+  }
+
+  function ReadStream (path, options) {
+    if (!(this instanceof ReadStream)) return new ReadStream(path, options);
+
+    Stream.call(this);
+
+    var self = this;
+
+    this.path = path;
+    this.fd = null;
+    this.readable = true;
+    this.paused = false;
+
+    this.flags = 'r';
+    this.mode = 438; /*=0666*/
+    this.bufferSize = 64 * 1024;
+
+    options = options || {};
+
+    // Mixin options into this
+    var keys = Object.keys(options);
+    for (var index = 0, length = keys.length; index < length; index++) {
+      var key = keys[index];
+      this[key] = options[key];
+    }
+
+    if (this.encoding) this.setEncoding(this.encoding);
+
+    if (this.start !== undefined) {
+      if ('number' !== typeof this.start) {
+        throw TypeError('start must be a Number');
+      }
+      if (this.end === undefined) {
+        this.end = Infinity;
+      } else if ('number' !== typeof this.end) {
+        throw TypeError('end must be a Number');
+      }
+
+      if (this.start > this.end) {
+        throw new Error('start must be <= end');
+      }
+
+      this.pos = this.start;
+    }
+
+    if (this.fd !== null) {
+      process.nextTick(function() {
+        self._read();
+      });
+      return;
+    }
+
+    fs.open(this.path, this.flags, this.mode, function (err, fd) {
+      if (err) {
+        self.emit('error', err);
+        self.readable = false;
+        return;
+      }
+
+      self.fd = fd;
+      self.emit('open', fd);
+      self._read();
+    })
+  }
+
+  function WriteStream (path, options) {
+    if (!(this instanceof WriteStream)) return new WriteStream(path, options);
+
+    Stream.call(this);
+
+    this.path = path;
+    this.fd = null;
+    this.writable = true;
+
+    this.flags = 'w';
+    this.encoding = 'binary';
+    this.mode = 438; /*=0666*/
+    this.bytesWritten = 0;
+
+    options = options || {};
+
+    // Mixin options into this
+    var keys = Object.keys(options);
+    for (var index = 0, length = keys.length; index < length; index++) {
+      var key = keys[index];
+      this[key] = options[key];
+    }
+
+    if (this.start !== undefined) {
+      if ('number' !== typeof this.start) {
+        throw TypeError('start must be a Number');
+      }
+      if (this.start < 0) {
+        throw new Error('start must be >= zero');
+      }
+
+      this.pos = this.start;
+    }
+
+    this.busy = false;
+    this._queue = [];
+
+    if (this.fd === null) {
+      this._open = fs.open;
+      this._queue.push([this._open, this.path, this.flags, this.mode, undefined]);
+      this.flush();
+    }
+  }
+}
diff --git a/node_modules/graceful-fs/package.json b/node_modules/graceful-fs/package.json
new file mode 100644
index 0000000..87babf0
--- /dev/null
+++ b/node_modules/graceful-fs/package.json
@@ -0,0 +1,53 @@
+{
+  "name": "graceful-fs",
+  "description": "A drop-in replacement for fs, making various improvements.",
+  "version": "4.2.11",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/isaacs/node-graceful-fs"
+  },
+  "main": "graceful-fs.js",
+  "directories": {
+    "test": "test"
+  },
+  "scripts": {
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags",
+    "test": "nyc --silent node test.js | tap -c -",
+    "posttest": "nyc report"
+  },
+  "keywords": [
+    "fs",
+    "module",
+    "reading",
+    "retry",
+    "retries",
+    "queue",
+    "error",
+    "errors",
+    "handling",
+    "EMFILE",
+    "EAGAIN",
+    "EINVAL",
+    "EPERM",
+    "EACCESS"
+  ],
+  "license": "ISC",
+  "devDependencies": {
+    "import-fresh": "^2.0.0",
+    "mkdirp": "^0.5.0",
+    "rimraf": "^2.2.8",
+    "tap": "^16.3.4"
+  },
+  "files": [
+    "fs.js",
+    "graceful-fs.js",
+    "legacy-streams.js",
+    "polyfills.js",
+    "clone.js"
+  ],
+  "tap": {
+    "reporter": "classic"
+  }
+}
diff --git a/node_modules/graceful-fs/polyfills.js b/node_modules/graceful-fs/polyfills.js
new file mode 100644
index 0000000..453f1a9
--- /dev/null
+++ b/node_modules/graceful-fs/polyfills.js
@@ -0,0 +1,355 @@
+var constants = require('constants')
+
+var origCwd = process.cwd
+var cwd = null
+
+var platform = process.env.GRACEFUL_FS_PLATFORM || process.platform
+
+process.cwd = function() {
+  if (!cwd)
+    cwd = origCwd.call(process)
+  return cwd
+}
+try {
+  process.cwd()
+} catch (er) {}
+
+// This check is needed until node.js 12 is required
+if (typeof process.chdir === 'function') {
+  var chdir = process.chdir
+  process.chdir = function (d) {
+    cwd = null
+    chdir.call(process, d)
+  }
+  if (Object.setPrototypeOf) Object.setPrototypeOf(process.chdir, chdir)
+}
+
+module.exports = patch
+
+function patch (fs) {
+  // (re-)implement some things that are known busted or missing.
+
+  // lchmod, broken prior to 0.6.2
+  // back-port the fix here.
+  if (constants.hasOwnProperty('O_SYMLINK') &&
+      process.version.match(/^v0\.6\.[0-2]|^v0\.5\./)) {
+    patchLchmod(fs)
+  }
+
+  // lutimes implementation, or no-op
+  if (!fs.lutimes) {
+    patchLutimes(fs)
+  }
+
+  // https://github.com/isaacs/node-graceful-fs/issues/4
+  // Chown should not fail on einval or eperm if non-root.
+  // It should not fail on enosys ever, as this just indicates
+  // that a fs doesn't support the intended operation.
+
+  fs.chown = chownFix(fs.chown)
+  fs.fchown = chownFix(fs.fchown)
+  fs.lchown = chownFix(fs.lchown)
+
+  fs.chmod = chmodFix(fs.chmod)
+  fs.fchmod = chmodFix(fs.fchmod)
+  fs.lchmod = chmodFix(fs.lchmod)
+
+  fs.chownSync = chownFixSync(fs.chownSync)
+  fs.fchownSync = chownFixSync(fs.fchownSync)
+  fs.lchownSync = chownFixSync(fs.lchownSync)
+
+  fs.chmodSync = chmodFixSync(fs.chmodSync)
+  fs.fchmodSync = chmodFixSync(fs.fchmodSync)
+  fs.lchmodSync = chmodFixSync(fs.lchmodSync)
+
+  fs.stat = statFix(fs.stat)
+  fs.fstat = statFix(fs.fstat)
+  fs.lstat = statFix(fs.lstat)
+
+  fs.statSync = statFixSync(fs.statSync)
+  fs.fstatSync = statFixSync(fs.fstatSync)
+  fs.lstatSync = statFixSync(fs.lstatSync)
+
+  // if lchmod/lchown do not exist, then make them no-ops
+  if (fs.chmod && !fs.lchmod) {
+    fs.lchmod = function (path, mode, cb) {
+      if (cb) process.nextTick(cb)
+    }
+    fs.lchmodSync = function () {}
+  }
+  if (fs.chown && !fs.lchown) {
+    fs.lchown = function (path, uid, gid, cb) {
+      if (cb) process.nextTick(cb)
+    }
+    fs.lchownSync = function () {}
+  }
+
+  // on Windows, A/V software can lock the directory, causing this
+  // to fail with an EACCES or EPERM if the directory contains newly
+  // created files.  Try again on failure, for up to 60 seconds.
+
+  // Set the timeout this long because some Windows Anti-Virus, such as Parity
+  // bit9, may lock files for up to a minute, causing npm package install
+  // failures. Also, take care to yield the scheduler. Windows scheduling gives
+  // CPU to a busy looping process, which can cause the program causing the lock
+  // contention to be starved of CPU by node, so the contention doesn't resolve.
+  if (platform === "win32") {
+    fs.rename = typeof fs.rename !== 'function' ? fs.rename
+    : (function (fs$rename) {
+      function rename (from, to, cb) {
+        var start = Date.now()
+        var backoff = 0;
+        fs$rename(from, to, function CB (er) {
+          if (er
+              && (er.code === "EACCES" || er.code === "EPERM" || er.code === "EBUSY")
+              && Date.now() - start < 60000) {
+            setTimeout(function() {
+              fs.stat(to, function (stater, st) {
+                if (stater && stater.code === "ENOENT")
+                  fs$rename(from, to, CB);
+                else
+                  cb(er)
+              })
+            }, backoff)
+            if (backoff < 100)
+              backoff += 10;
+            return;
+          }
+          if (cb) cb(er)
+        })
+      }
+      if (Object.setPrototypeOf) Object.setPrototypeOf(rename, fs$rename)
+      return rename
+    })(fs.rename)
+  }
+
+  // if read() returns EAGAIN, then just try it again.
+  fs.read = typeof fs.read !== 'function' ? fs.read
+  : (function (fs$read) {
+    function read (fd, buffer, offset, length, position, callback_) {
+      var callback
+      if (callback_ && typeof callback_ === 'function') {
+        var eagCounter = 0
+        callback = function (er, _, __) {
+          if (er && er.code === 'EAGAIN' && eagCounter < 10) {
+            eagCounter ++
+            return fs$read.call(fs, fd, buffer, offset, length, position, callback)
+          }
+          callback_.apply(this, arguments)
+        }
+      }
+      return fs$read.call(fs, fd, buffer, offset, length, position, callback)
+    }
+
+    // This ensures `util.promisify` works as it does for native `fs.read`.
+    if (Object.setPrototypeOf) Object.setPrototypeOf(read, fs$read)
+    return read
+  })(fs.read)
+
+  fs.readSync = typeof fs.readSync !== 'function' ? fs.readSync
+  : (function (fs$readSync) { return function (fd, buffer, offset, length, position) {
+    var eagCounter = 0
+    while (true) {
+      try {
+        return fs$readSync.call(fs, fd, buffer, offset, length, position)
+      } catch (er) {
+        if (er.code === 'EAGAIN' && eagCounter < 10) {
+          eagCounter ++
+          continue
+        }
+        throw er
+      }
+    }
+  }})(fs.readSync)
+
+  function patchLchmod (fs) {
+    fs.lchmod = function (path, mode, callback) {
+      fs.open( path
+             , constants.O_WRONLY | constants.O_SYMLINK
+             , mode
+             , function (err, fd) {
+        if (err) {
+          if (callback) callback(err)
+          return
+        }
+        // prefer to return the chmod error, if one occurs,
+        // but still try to close, and report closing errors if they occur.
+        fs.fchmod(fd, mode, function (err) {
+          fs.close(fd, function(err2) {
+            if (callback) callback(err || err2)
+          })
+        })
+      })
+    }
+
+    fs.lchmodSync = function (path, mode) {
+      var fd = fs.openSync(path, constants.O_WRONLY | constants.O_SYMLINK, mode)
+
+      // prefer to return the chmod error, if one occurs,
+      // but still try to close, and report closing errors if they occur.
+      var threw = true
+      var ret
+      try {
+        ret = fs.fchmodSync(fd, mode)
+        threw = false
+      } finally {
+        if (threw) {
+          try {
+            fs.closeSync(fd)
+          } catch (er) {}
+        } else {
+          fs.closeSync(fd)
+        }
+      }
+      return ret
+    }
+  }
+
+  function patchLutimes (fs) {
+    if (constants.hasOwnProperty("O_SYMLINK") && fs.futimes) {
+      fs.lutimes = function (path, at, mt, cb) {
+        fs.open(path, constants.O_SYMLINK, function (er, fd) {
+          if (er) {
+            if (cb) cb(er)
+            return
+          }
+          fs.futimes(fd, at, mt, function (er) {
+            fs.close(fd, function (er2) {
+              if (cb) cb(er || er2)
+            })
+          })
+        })
+      }
+
+      fs.lutimesSync = function (path, at, mt) {
+        var fd = fs.openSync(path, constants.O_SYMLINK)
+        var ret
+        var threw = true
+        try {
+          ret = fs.futimesSync(fd, at, mt)
+          threw = false
+        } finally {
+          if (threw) {
+            try {
+              fs.closeSync(fd)
+            } catch (er) {}
+          } else {
+            fs.closeSync(fd)
+          }
+        }
+        return ret
+      }
+
+    } else if (fs.futimes) {
+      fs.lutimes = function (_a, _b, _c, cb) { if (cb) process.nextTick(cb) }
+      fs.lutimesSync = function () {}
+    }
+  }
+
+  function chmodFix (orig) {
+    if (!orig) return orig
+    return function (target, mode, cb) {
+      return orig.call(fs, target, mode, function (er) {
+        if (chownErOk(er)) er = null
+        if (cb) cb.apply(this, arguments)
+      })
+    }
+  }
+
+  function chmodFixSync (orig) {
+    if (!orig) return orig
+    return function (target, mode) {
+      try {
+        return orig.call(fs, target, mode)
+      } catch (er) {
+        if (!chownErOk(er)) throw er
+      }
+    }
+  }
+
+
+  function chownFix (orig) {
+    if (!orig) return orig
+    return function (target, uid, gid, cb) {
+      return orig.call(fs, target, uid, gid, function (er) {
+        if (chownErOk(er)) er = null
+        if (cb) cb.apply(this, arguments)
+      })
+    }
+  }
+
+  function chownFixSync (orig) {
+    if (!orig) return orig
+    return function (target, uid, gid) {
+      try {
+        return orig.call(fs, target, uid, gid)
+      } catch (er) {
+        if (!chownErOk(er)) throw er
+      }
+    }
+  }
+
+  function statFix (orig) {
+    if (!orig) return orig
+    // Older versions of Node erroneously returned signed integers for
+    // uid + gid.
+    return function (target, options, cb) {
+      if (typeof options === 'function') {
+        cb = options
+        options = null
+      }
+      function callback (er, stats) {
+        if (stats) {
+          if (stats.uid < 0) stats.uid += 0x100000000
+          if (stats.gid < 0) stats.gid += 0x100000000
+        }
+        if (cb) cb.apply(this, arguments)
+      }
+      return options ? orig.call(fs, target, options, callback)
+        : orig.call(fs, target, callback)
+    }
+  }
+
+  function statFixSync (orig) {
+    if (!orig) return orig
+    // Older versions of Node erroneously returned signed integers for
+    // uid + gid.
+    return function (target, options) {
+      var stats = options ? orig.call(fs, target, options)
+        : orig.call(fs, target)
+      if (stats) {
+        if (stats.uid < 0) stats.uid += 0x100000000
+        if (stats.gid < 0) stats.gid += 0x100000000
+      }
+      return stats;
+    }
+  }
+
+  // ENOSYS means that the fs doesn't support the op. Just ignore
+  // that, because it doesn't matter.
+  //
+  // if there's no getuid, or if getuid() is something other
+  // than 0, and the error is EINVAL or EPERM, then just ignore
+  // it.
+  //
+  // This specific case is a silent failure in cp, install, tar,
+  // and most other unix tools that manage permissions.
+  //
+  // When running as root, or if other types of errors are
+  // encountered, then it's strict.
+  function chownErOk (er) {
+    if (!er)
+      return true
+
+    if (er.code === "ENOSYS")
+      return true
+
+    var nonroot = !process.getuid || process.getuid() !== 0
+    if (nonroot) {
+      if (er.code === "EINVAL" || er.code === "EPERM")
+        return true
+    }
+
+    return false
+  }
+}
diff --git a/node_modules/has-unicode/LICENSE b/node_modules/has-unicode/LICENSE
new file mode 100644
index 0000000..d42e25e
--- /dev/null
+++ b/node_modules/has-unicode/LICENSE
@@ -0,0 +1,14 @@
+Copyright (c) 2014, Rebecca Turner <me@re-becca.org>
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
diff --git a/node_modules/has-unicode/README.md b/node_modules/has-unicode/README.md
new file mode 100644
index 0000000..5a03e59
--- /dev/null
+++ b/node_modules/has-unicode/README.md
@@ -0,0 +1,43 @@
+has-unicode
+===========
+
+Try to guess if your terminal supports unicode
+
+```javascript
+var hasUnicode = require("has-unicode")
+
+if (hasUnicode()) {
+  // the terminal probably has unicode support
+}
+```
+```javascript
+var hasUnicode = require("has-unicode").tryHarder
+hasUnicode(function(unicodeSupported) {
+  if (unicodeSupported) {
+    // the terminal probably has unicode support
+  }
+})
+```
+
+## Detecting Unicode
+
+What we actually detect is UTF-8 support, as that's what Node itself supports.
+If you have a UTF-16 locale then you won't be detected as unicode capable.
+
+### Windows
+
+Since at least Windows 7, `cmd` and `powershell` have been unicode capable,
+but unfortunately even then it's not guaranteed. In many localizations it
+still uses legacy code pages and there's no facility short of running
+programs or linking C++ that will let us detect this. As such, we
+report any Windows installation as NOT unicode capable, and recommend
+that you encourage your users to override this via config.
+
+### Unix Like Operating Systems
+
+We look at the environment variables `LC_ALL`, `LC_CTYPE`, and `LANG` in
+that order.  For `LC_ALL` and `LANG`, it looks for `.UTF-8` in the value. 
+For `LC_CTYPE` it looks to see if the value is `UTF-8`.  This is sufficient
+for most POSIX systems.  While locale data can be put in `/etc/locale.conf`
+as well, AFAIK it's always copied into the environment.
+
diff --git a/node_modules/has-unicode/index.js b/node_modules/has-unicode/index.js
new file mode 100644
index 0000000..9b0fe44
--- /dev/null
+++ b/node_modules/has-unicode/index.js
@@ -0,0 +1,16 @@
+"use strict"
+var os = require("os")
+
+var hasUnicode = module.exports = function () {
+  // Recent Win32 platforms (>XP) CAN support unicode in the console but
+  // don't have to, and in non-english locales often use traditional local
+  // code pages. There's no way, short of windows system calls or execing
+  // the chcp command line program to figure this out. As such, we default
+  // this to false and encourage your users to override it via config if
+  // appropriate.
+  if (os.type() == "Windows_NT") { return false }
+
+  var isUTF8 = /UTF-?8$/i
+  var ctype = process.env.LC_ALL || process.env.LC_CTYPE || process.env.LANG
+  return isUTF8.test(ctype)
+}
diff --git a/node_modules/has-unicode/package.json b/node_modules/has-unicode/package.json
new file mode 100644
index 0000000..ebe9d76
--- /dev/null
+++ b/node_modules/has-unicode/package.json
@@ -0,0 +1,30 @@
+{
+  "name": "has-unicode",
+  "version": "2.0.1",
+  "description": "Try to guess if your terminal supports unicode",
+  "main": "index.js",
+  "scripts": {
+    "test": "tap test/*.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/iarna/has-unicode"
+  },
+  "keywords": [
+    "unicode",
+    "terminal"
+  ],
+  "files": [
+    "index.js"
+  ],
+  "author": "Rebecca Turner <me@re-becca.org>",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/iarna/has-unicode/issues"
+  },
+  "homepage": "https://github.com/iarna/has-unicode",
+  "devDependencies": {
+    "require-inject": "^1.3.0",
+    "tap": "^2.3.1"
+  }
+}
diff --git a/node_modules/http-cache-semantics/LICENSE b/node_modules/http-cache-semantics/LICENSE
new file mode 100644
index 0000000..493d2ea
--- /dev/null
+++ b/node_modules/http-cache-semantics/LICENSE
@@ -0,0 +1,9 @@
+Copyright 2016-2018 Kornel Lesiński
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/node_modules/http-cache-semantics/README.md b/node_modules/http-cache-semantics/README.md
new file mode 100644
index 0000000..685aa55
--- /dev/null
+++ b/node_modules/http-cache-semantics/README.md
@@ -0,0 +1,203 @@
+# Can I cache this? [![Build Status](https://travis-ci.org/kornelski/http-cache-semantics.svg?branch=master)](https://travis-ci.org/kornelski/http-cache-semantics)
+
+`CachePolicy` tells when responses can be reused from a cache, taking into account [HTTP RFC 7234](http://httpwg.org/specs/rfc7234.html) rules for user agents and shared caches.
+It also implements [RFC 5861](https://tools.ietf.org/html/rfc5861), implementing `stale-if-error` and `stale-while-revalidate`.
+It's aware of many tricky details such as the `Vary` header, proxy revalidation, and authenticated responses.
+
+## Usage
+
+Cacheability of an HTTP response depends on how it was requested, so both `request` and `response` are required to create the policy.
+
+```js
+const policy = new CachePolicy(request, response, options);
+
+if (!policy.storable()) {
+    // throw the response away, it's not usable at all
+    return;
+}
+
+// Cache the data AND the policy object in your cache
+// (this is pseudocode, roll your own cache (lru-cache package works))
+letsPretendThisIsSomeCache.set(
+    request.url,
+    { policy, response },
+    policy.timeToLive()
+);
+```
+
+```js
+// And later, when you receive a new request:
+const { policy, response } = letsPretendThisIsSomeCache.get(newRequest.url);
+
+// It's not enough that it exists in the cache, it has to match the new request, too:
+if (policy && policy.satisfiesWithoutRevalidation(newRequest)) {
+    // OK, the previous response can be used to respond to the `newRequest`.
+    // Response headers have to be updated, e.g. to add Age and remove uncacheable headers.
+    response.headers = policy.responseHeaders();
+    return response;
+}
+```
+
+It may be surprising, but it's not enough for an HTTP response to be [fresh](#yo-fresh) to satisfy a request. It may need to match request headers specified in `Vary`. Even a matching fresh response may still not be usable if the new request restricted cacheability, etc.
+
+The key method is `satisfiesWithoutRevalidation(newRequest)`, which checks whether the `newRequest` is compatible with the original request and whether all caching conditions are met.
+
+### Constructor options
+
+Request and response must have a `headers` property with all header names in lower case. `url`, `status` and `method` are optional (defaults are any URL, status `200`, and `GET` method).
+
+```js
+const request = {
+    url: '/',
+    method: 'GET',
+    headers: {
+        accept: '*/*',
+    },
+};
+
+const response = {
+    status: 200,
+    headers: {
+        'cache-control': 'public, max-age=7234',
+    },
+};
+
+const options = {
+    shared: true,
+    cacheHeuristic: 0.1,
+    immutableMinTimeToLive: 24 * 3600 * 1000, // 24h
+    ignoreCargoCult: false,
+};
+```
+
+If `options.shared` is `true` (default), then the response is evaluated from a perspective of a shared cache (i.e. `private` is not cacheable and `s-maxage` is respected). If `options.shared` is `false`, then the response is evaluated from a perspective of a single-user cache (i.e. `private` is cacheable and `s-maxage` is ignored). `shared: true` is recommended for HTTP clients.
+
+`options.cacheHeuristic` is a fraction of response's age that is used as a fallback cache duration. The default is 0.1 (10%), e.g. if a file hasn't been modified for 100 days, it'll be cached for 100\*0.1 = 10 days.
+
+`options.immutableMinTimeToLive` is a number of milliseconds to assume as the default time to cache responses with `Cache-Control: immutable`. Note that [per RFC](http://httpwg.org/http-extensions/immutable.html) these can become stale, so `max-age` still overrides the default.
+
+If `options.ignoreCargoCult` is true, common anti-cache directives will be completely ignored if the non-standard `pre-check` and `post-check` directives are present. These two useless directives are most commonly found in bad StackOverflow answers and PHP's "session limiter" defaults.
+
+### `storable()`
+
+Returns `true` if the response can be stored in a cache. If it's `false` then you MUST NOT store either the request or the response.
+
+### `satisfiesWithoutRevalidation(newRequest)`
+
+This is the most important method. Use this method to check whether the cached response is still fresh in the context of the new request.
+
+If it returns `true`, then the given `request` matches the original response this cache policy has been created with, and the response can be reused without contacting the server. Note that the old response can't be returned without being updated, see `responseHeaders()`.
+
+If it returns `false`, then the response may not be matching at all (e.g. it's for a different URL or method), or may require to be refreshed first (see `revalidationHeaders()`).
+
+### `responseHeaders()`
+
+Returns updated, filtered set of response headers to return to clients receiving the cached response. This function is necessary, because proxies MUST always remove hop-by-hop headers (such as `TE` and `Connection`) and update response's `Age` to avoid doubling cache time.
+
+```js
+cachedResponse.headers = cachePolicy.responseHeaders(cachedResponse);
+```
+
+### `timeToLive()`
+
+Returns approximate time in _milliseconds_ until the response becomes stale (i.e. not fresh).
+
+After that time (when `timeToLive() <= 0`) the response might not be usable without revalidation. However, there are exceptions, e.g. a client can explicitly allow stale responses, so always check with `satisfiesWithoutRevalidation()`.
+`stale-if-error` and `stale-while-revalidate` extend the time to live of the cache, that can still be used if stale.
+
+### `toObject()`/`fromObject(json)`
+
+Chances are you'll want to store the `CachePolicy` object along with the cached response. `obj = policy.toObject()` gives a plain JSON-serializable object. `policy = CachePolicy.fromObject(obj)` creates an instance from it.
+
+### Refreshing stale cache (revalidation)
+
+When a cached response has expired, it can be made fresh again by making a request to the origin server. The server may respond with status 304 (Not Modified) without sending the response body again, saving bandwidth.
+
+The following methods help perform the update efficiently and correctly.
+
+#### `revalidationHeaders(newRequest)`
+
+Returns updated, filtered set of request headers to send to the origin server to check if the cached response can be reused. These headers allow the origin server to return status 304 indicating the response is still fresh. All headers unrelated to caching are passed through as-is.
+
+Use this method when updating cache from the origin server.
+
+```js
+updateRequest.headers = cachePolicy.revalidationHeaders(updateRequest);
+```
+
+#### `revalidatedPolicy(revalidationRequest, revalidationResponse)`
+
+Use this method to update the cache after receiving a new response from the origin server. It returns an object with two keys:
+
+-   `policy` — A new `CachePolicy` with HTTP headers updated from `revalidationResponse`. You can always replace the old cached `CachePolicy` with the new one.
+-   `modified` — Boolean indicating whether the response body has changed.
+    -   If `false`, then a valid 304 Not Modified response has been received, and you can reuse the old cached response body. This is also affected by `stale-if-error`.
+    -   If `true`, you should use new response's body (if present), or make another request to the origin server without any conditional headers (i.e. don't use `revalidationHeaders()` this time) to get the new resource.
+
+```js
+// When serving requests from cache:
+const { oldPolicy, oldResponse } = letsPretendThisIsSomeCache.get(
+    newRequest.url
+);
+
+if (!oldPolicy.satisfiesWithoutRevalidation(newRequest)) {
+    // Change the request to ask the origin server if the cached response can be used
+    newRequest.headers = oldPolicy.revalidationHeaders(newRequest);
+
+    // Send request to the origin server. The server may respond with status 304
+    const newResponse = await makeRequest(newRequest);
+
+    // Create updated policy and combined response from the old and new data
+    const { policy, modified } = oldPolicy.revalidatedPolicy(
+        newRequest,
+        newResponse
+    );
+    const response = modified ? newResponse : oldResponse;
+
+    // Update the cache with the newer/fresher response
+    letsPretendThisIsSomeCache.set(
+        newRequest.url,
+        { policy, response },
+        policy.timeToLive()
+    );
+
+    // And proceed returning cached response as usual
+    response.headers = policy.responseHeaders();
+    return response;
+}
+```
+
+# Yo, FRESH
+
+![satisfiesWithoutRevalidation](fresh.jpg)
+
+## Used by
+
+-   [ImageOptim API](https://imageoptim.com/api), [make-fetch-happen](https://github.com/zkat/make-fetch-happen), [cacheable-request](https://www.npmjs.com/package/cacheable-request) ([got](https://www.npmjs.com/package/got)), [npm/registry-fetch](https://github.com/npm/registry-fetch), [etc.](https://github.com/kornelski/http-cache-semantics/network/dependents)
+
+## Implemented
+
+-   `Cache-Control` response header with all the quirks.
+-   `Expires` with check for bad clocks.
+-   `Pragma` response header.
+-   `Age` response header.
+-   `Vary` response header.
+-   Default cacheability of statuses and methods.
+-   Requests for stale data.
+-   Filtering of hop-by-hop headers.
+-   Basic revalidation request
+-   `stale-if-error`
+
+## Unimplemented
+
+-   Merging of range requests, `If-Range` (but correctly supports them as non-cacheable)
+-   Revalidation of multiple representations
+
+### Trusting server `Date`
+
+Per the RFC, the cache should take into account the time between server-supplied `Date` and the time it received the response. The RFC-mandated behavior creates two problems:
+
+ * Servers with incorrectly set timezone may add several hours to cache age (or more, if the clock is completely wrong).
+ * Even reasonably correct clocks may be off by a couple of seconds, breaking `max-age=1` trick (which is useful for reverse proxies on high-traffic servers).
+
+Previous versions of this library had an option to ignore the server date if it was "too inaccurate". To support the `max-age=1` trick the library also has to ignore dates that pretty accurate. There's no point of having an option to trust dates that are only a bit inaccurate, so this library won't trust any server dates. `max-age` will be interpreted from the time the response has been received, not from when it has been sent. This will affect only [RFC 1149 networks](https://tools.ietf.org/html/rfc1149).
diff --git a/node_modules/http-cache-semantics/index.js b/node_modules/http-cache-semantics/index.js
new file mode 100644
index 0000000..31fba48
--- /dev/null
+++ b/node_modules/http-cache-semantics/index.js
@@ -0,0 +1,674 @@
+'use strict';
+// rfc7231 6.1
+const statusCodeCacheableByDefault = new Set([
+    200,
+    203,
+    204,
+    206,
+    300,
+    301,
+    308,
+    404,
+    405,
+    410,
+    414,
+    501,
+]);
+
+// This implementation does not understand partial responses (206)
+const understoodStatuses = new Set([
+    200,
+    203,
+    204,
+    300,
+    301,
+    302,
+    303,
+    307,
+    308,
+    404,
+    405,
+    410,
+    414,
+    501,
+]);
+
+const errorStatusCodes = new Set([
+    500,
+    502,
+    503, 
+    504,
+]);
+
+const hopByHopHeaders = {
+    date: true, // included, because we add Age update Date
+    connection: true,
+    'keep-alive': true,
+    'proxy-authenticate': true,
+    'proxy-authorization': true,
+    te: true,
+    trailer: true,
+    'transfer-encoding': true,
+    upgrade: true,
+};
+
+const excludedFromRevalidationUpdate = {
+    // Since the old body is reused, it doesn't make sense to change properties of the body
+    'content-length': true,
+    'content-encoding': true,
+    'transfer-encoding': true,
+    'content-range': true,
+};
+
+function toNumberOrZero(s) {
+    const n = parseInt(s, 10);
+    return isFinite(n) ? n : 0;
+}
+
+// RFC 5861
+function isErrorResponse(response) {
+    // consider undefined response as faulty
+    if(!response) {
+        return true
+    }
+    return errorStatusCodes.has(response.status);
+}
+
+function parseCacheControl(header) {
+    const cc = {};
+    if (!header) return cc;
+
+    // TODO: When there is more than one value present for a given directive (e.g., two Expires header fields, multiple Cache-Control: max-age directives),
+    // the directive's value is considered invalid. Caches are encouraged to consider responses that have invalid freshness information to be stale
+    const parts = header.trim().split(/,/);
+    for (const part of parts) {
+        const [k, v] = part.split(/=/, 2);
+        cc[k.trim()] = v === undefined ? true : v.trim().replace(/^"|"$/g, '');
+    }
+
+    return cc;
+}
+
+function formatCacheControl(cc) {
+    let parts = [];
+    for (const k in cc) {
+        const v = cc[k];
+        parts.push(v === true ? k : k + '=' + v);
+    }
+    if (!parts.length) {
+        return undefined;
+    }
+    return parts.join(', ');
+}
+
+module.exports = class CachePolicy {
+    constructor(
+        req,
+        res,
+        {
+            shared,
+            cacheHeuristic,
+            immutableMinTimeToLive,
+            ignoreCargoCult,
+            _fromObject,
+        } = {}
+    ) {
+        if (_fromObject) {
+            this._fromObject(_fromObject);
+            return;
+        }
+
+        if (!res || !res.headers) {
+            throw Error('Response headers missing');
+        }
+        this._assertRequestHasHeaders(req);
+
+        this._responseTime = this.now();
+        this._isShared = shared !== false;
+        this._cacheHeuristic =
+            undefined !== cacheHeuristic ? cacheHeuristic : 0.1; // 10% matches IE
+        this._immutableMinTtl =
+            undefined !== immutableMinTimeToLive
+                ? immutableMinTimeToLive
+                : 24 * 3600 * 1000;
+
+        this._status = 'status' in res ? res.status : 200;
+        this._resHeaders = res.headers;
+        this._rescc = parseCacheControl(res.headers['cache-control']);
+        this._method = 'method' in req ? req.method : 'GET';
+        this._url = req.url;
+        this._host = req.headers.host;
+        this._noAuthorization = !req.headers.authorization;
+        this._reqHeaders = res.headers.vary ? req.headers : null; // Don't keep all request headers if they won't be used
+        this._reqcc = parseCacheControl(req.headers['cache-control']);
+
+        // Assume that if someone uses legacy, non-standard uncecessary options they don't understand caching,
+        // so there's no point stricly adhering to the blindly copy&pasted directives.
+        if (
+            ignoreCargoCult &&
+            'pre-check' in this._rescc &&
+            'post-check' in this._rescc
+        ) {
+            delete this._rescc['pre-check'];
+            delete this._rescc['post-check'];
+            delete this._rescc['no-cache'];
+            delete this._rescc['no-store'];
+            delete this._rescc['must-revalidate'];
+            this._resHeaders = Object.assign({}, this._resHeaders, {
+                'cache-control': formatCacheControl(this._rescc),
+            });
+            delete this._resHeaders.expires;
+            delete this._resHeaders.pragma;
+        }
+
+        // When the Cache-Control header field is not present in a request, caches MUST consider the no-cache request pragma-directive
+        // as having the same effect as if "Cache-Control: no-cache" were present (see Section 5.2.1).
+        if (
+            res.headers['cache-control'] == null &&
+            /no-cache/.test(res.headers.pragma)
+        ) {
+            this._rescc['no-cache'] = true;
+        }
+    }
+
+    now() {
+        return Date.now();
+    }
+
+    storable() {
+        // The "no-store" request directive indicates that a cache MUST NOT store any part of either this request or any response to it.
+        return !!(
+            !this._reqcc['no-store'] &&
+            // A cache MUST NOT store a response to any request, unless:
+            // The request method is understood by the cache and defined as being cacheable, and
+            ('GET' === this._method ||
+                'HEAD' === this._method ||
+                ('POST' === this._method && this._hasExplicitExpiration())) &&
+            // the response status code is understood by the cache, and
+            understoodStatuses.has(this._status) &&
+            // the "no-store" cache directive does not appear in request or response header fields, and
+            !this._rescc['no-store'] &&
+            // the "private" response directive does not appear in the response, if the cache is shared, and
+            (!this._isShared || !this._rescc.private) &&
+            // the Authorization header field does not appear in the request, if the cache is shared,
+            (!this._isShared ||
+                this._noAuthorization ||
+                this._allowsStoringAuthenticated()) &&
+            // the response either:
+            // contains an Expires header field, or
+            (this._resHeaders.expires ||
+                // contains a max-age response directive, or
+                // contains a s-maxage response directive and the cache is shared, or
+                // contains a public response directive.
+                this._rescc['max-age'] ||
+                (this._isShared && this._rescc['s-maxage']) ||
+                this._rescc.public ||
+                // has a status code that is defined as cacheable by default
+                statusCodeCacheableByDefault.has(this._status))
+        );
+    }
+
+    _hasExplicitExpiration() {
+        // 4.2.1 Calculating Freshness Lifetime
+        return (
+            (this._isShared && this._rescc['s-maxage']) ||
+            this._rescc['max-age'] ||
+            this._resHeaders.expires
+        );
+    }
+
+    _assertRequestHasHeaders(req) {
+        if (!req || !req.headers) {
+            throw Error('Request headers missing');
+        }
+    }
+
+    satisfiesWithoutRevalidation(req) {
+        this._assertRequestHasHeaders(req);
+
+        // When presented with a request, a cache MUST NOT reuse a stored response, unless:
+        // the presented request does not contain the no-cache pragma (Section 5.4), nor the no-cache cache directive,
+        // unless the stored response is successfully validated (Section 4.3), and
+        const requestCC = parseCacheControl(req.headers['cache-control']);
+        if (requestCC['no-cache'] || /no-cache/.test(req.headers.pragma)) {
+            return false;
+        }
+
+        if (requestCC['max-age'] && this.age() > requestCC['max-age']) {
+            return false;
+        }
+
+        if (
+            requestCC['min-fresh'] &&
+            this.timeToLive() < 1000 * requestCC['min-fresh']
+        ) {
+            return false;
+        }
+
+        // the stored response is either:
+        // fresh, or allowed to be served stale
+        if (this.stale()) {
+            const allowsStale =
+                requestCC['max-stale'] &&
+                !this._rescc['must-revalidate'] &&
+                (true === requestCC['max-stale'] ||
+                    requestCC['max-stale'] > this.age() - this.maxAge());
+            if (!allowsStale) {
+                return false;
+            }
+        }
+
+        return this._requestMatches(req, false);
+    }
+
+    _requestMatches(req, allowHeadMethod) {
+        // The presented effective request URI and that of the stored response match, and
+        return (
+            (!this._url || this._url === req.url) &&
+            this._host === req.headers.host &&
+            // the request method associated with the stored response allows it to be used for the presented request, and
+            (!req.method ||
+                this._method === req.method ||
+                (allowHeadMethod && 'HEAD' === req.method)) &&
+            // selecting header fields nominated by the stored response (if any) match those presented, and
+            this._varyMatches(req)
+        );
+    }
+
+    _allowsStoringAuthenticated() {
+        //  following Cache-Control response directives (Section 5.2.2) have such an effect: must-revalidate, public, and s-maxage.
+        return (
+            this._rescc['must-revalidate'] ||
+            this._rescc.public ||
+            this._rescc['s-maxage']
+        );
+    }
+
+    _varyMatches(req) {
+        if (!this._resHeaders.vary) {
+            return true;
+        }
+
+        // A Vary header field-value of "*" always fails to match
+        if (this._resHeaders.vary === '*') {
+            return false;
+        }
+
+        const fields = this._resHeaders.vary
+            .trim()
+            .toLowerCase()
+            .split(/\s*,\s*/);
+        for (const name of fields) {
+            if (req.headers[name] !== this._reqHeaders[name]) return false;
+        }
+        return true;
+    }
+
+    _copyWithoutHopByHopHeaders(inHeaders) {
+        const headers = {};
+        for (const name in inHeaders) {
+            if (hopByHopHeaders[name]) continue;
+            headers[name] = inHeaders[name];
+        }
+        // 9.1.  Connection
+        if (inHeaders.connection) {
+            const tokens = inHeaders.connection.trim().split(/\s*,\s*/);
+            for (const name of tokens) {
+                delete headers[name];
+            }
+        }
+        if (headers.warning) {
+            const warnings = headers.warning.split(/,/).filter(warning => {
+                return !/^\s*1[0-9][0-9]/.test(warning);
+            });
+            if (!warnings.length) {
+                delete headers.warning;
+            } else {
+                headers.warning = warnings.join(',').trim();
+            }
+        }
+        return headers;
+    }
+
+    responseHeaders() {
+        const headers = this._copyWithoutHopByHopHeaders(this._resHeaders);
+        const age = this.age();
+
+        // A cache SHOULD generate 113 warning if it heuristically chose a freshness
+        // lifetime greater than 24 hours and the response's age is greater than 24 hours.
+        if (
+            age > 3600 * 24 &&
+            !this._hasExplicitExpiration() &&
+            this.maxAge() > 3600 * 24
+        ) {
+            headers.warning =
+                (headers.warning ? `${headers.warning}, ` : '') +
+                '113 - "rfc7234 5.5.4"';
+        }
+        headers.age = `${Math.round(age)}`;
+        headers.date = new Date(this.now()).toUTCString();
+        return headers;
+    }
+
+    /**
+     * Value of the Date response header or current time if Date was invalid
+     * @return timestamp
+     */
+    date() {
+        const serverDate = Date.parse(this._resHeaders.date);
+        if (isFinite(serverDate)) {
+            return serverDate;
+        }
+        return this._responseTime;
+    }
+
+    /**
+     * Value of the Age header, in seconds, updated for the current time.
+     * May be fractional.
+     *
+     * @return Number
+     */
+    age() {
+        let age = this._ageValue();
+
+        const residentTime = (this.now() - this._responseTime) / 1000;
+        return age + residentTime;
+    }
+
+    _ageValue() {
+        return toNumberOrZero(this._resHeaders.age);
+    }
+
+    /**
+     * Value of applicable max-age (or heuristic equivalent) in seconds. This counts since response's `Date`.
+     *
+     * For an up-to-date value, see `timeToLive()`.
+     *
+     * @return Number
+     */
+    maxAge() {
+        if (!this.storable() || this._rescc['no-cache']) {
+            return 0;
+        }
+
+        // Shared responses with cookies are cacheable according to the RFC, but IMHO it'd be unwise to do so by default
+        // so this implementation requires explicit opt-in via public header
+        if (
+            this._isShared &&
+            (this._resHeaders['set-cookie'] &&
+                !this._rescc.public &&
+                !this._rescc.immutable)
+        ) {
+            return 0;
+        }
+
+        if (this._resHeaders.vary === '*') {
+            return 0;
+        }
+
+        if (this._isShared) {
+            if (this._rescc['proxy-revalidate']) {
+                return 0;
+            }
+            // if a response includes the s-maxage directive, a shared cache recipient MUST ignore the Expires field.
+            if (this._rescc['s-maxage']) {
+                return toNumberOrZero(this._rescc['s-maxage']);
+            }
+        }
+
+        // If a response includes a Cache-Control field with the max-age directive, a recipient MUST ignore the Expires field.
+        if (this._rescc['max-age']) {
+            return toNumberOrZero(this._rescc['max-age']);
+        }
+
+        const defaultMinTtl = this._rescc.immutable ? this._immutableMinTtl : 0;
+
+        const serverDate = this.date();
+        if (this._resHeaders.expires) {
+            const expires = Date.parse(this._resHeaders.expires);
+            // A cache recipient MUST interpret invalid date formats, especially the value "0", as representing a time in the past (i.e., "already expired").
+            if (Number.isNaN(expires) || expires < serverDate) {
+                return 0;
+            }
+            return Math.max(defaultMinTtl, (expires - serverDate) / 1000);
+        }
+
+        if (this._resHeaders['last-modified']) {
+            const lastModified = Date.parse(this._resHeaders['last-modified']);
+            if (isFinite(lastModified) && serverDate > lastModified) {
+                return Math.max(
+                    defaultMinTtl,
+                    ((serverDate - lastModified) / 1000) * this._cacheHeuristic
+                );
+            }
+        }
+
+        return defaultMinTtl;
+    }
+
+    timeToLive() {
+        const age = this.maxAge() - this.age();
+        const staleIfErrorAge = age + toNumberOrZero(this._rescc['stale-if-error']);
+        const staleWhileRevalidateAge = age + toNumberOrZero(this._rescc['stale-while-revalidate']);
+        return Math.max(0, age, staleIfErrorAge, staleWhileRevalidateAge) * 1000;
+    }
+
+    stale() {
+        return this.maxAge() <= this.age();
+    }
+
+    _useStaleIfError() {
+        return this.maxAge() + toNumberOrZero(this._rescc['stale-if-error']) > this.age();
+    }
+
+    useStaleWhileRevalidate() {
+        return this.maxAge() + toNumberOrZero(this._rescc['stale-while-revalidate']) > this.age();
+    }
+
+    static fromObject(obj) {
+        return new this(undefined, undefined, { _fromObject: obj });
+    }
+
+    _fromObject(obj) {
+        if (this._responseTime) throw Error('Reinitialized');
+        if (!obj || obj.v !== 1) throw Error('Invalid serialization');
+
+        this._responseTime = obj.t;
+        this._isShared = obj.sh;
+        this._cacheHeuristic = obj.ch;
+        this._immutableMinTtl =
+            obj.imm !== undefined ? obj.imm : 24 * 3600 * 1000;
+        this._status = obj.st;
+        this._resHeaders = obj.resh;
+        this._rescc = obj.rescc;
+        this._method = obj.m;
+        this._url = obj.u;
+        this._host = obj.h;
+        this._noAuthorization = obj.a;
+        this._reqHeaders = obj.reqh;
+        this._reqcc = obj.reqcc;
+    }
+
+    toObject() {
+        return {
+            v: 1,
+            t: this._responseTime,
+            sh: this._isShared,
+            ch: this._cacheHeuristic,
+            imm: this._immutableMinTtl,
+            st: this._status,
+            resh: this._resHeaders,
+            rescc: this._rescc,
+            m: this._method,
+            u: this._url,
+            h: this._host,
+            a: this._noAuthorization,
+            reqh: this._reqHeaders,
+            reqcc: this._reqcc,
+        };
+    }
+
+    /**
+     * Headers for sending to the origin server to revalidate stale response.
+     * Allows server to return 304 to allow reuse of the previous response.
+     *
+     * Hop by hop headers are always stripped.
+     * Revalidation headers may be added or removed, depending on request.
+     */
+    revalidationHeaders(incomingReq) {
+        this._assertRequestHasHeaders(incomingReq);
+        const headers = this._copyWithoutHopByHopHeaders(incomingReq.headers);
+
+        // This implementation does not understand range requests
+        delete headers['if-range'];
+
+        if (!this._requestMatches(incomingReq, true) || !this.storable()) {
+            // revalidation allowed via HEAD
+            // not for the same resource, or wasn't allowed to be cached anyway
+            delete headers['if-none-match'];
+            delete headers['if-modified-since'];
+            return headers;
+        }
+
+        /* MUST send that entity-tag in any cache validation request (using If-Match or If-None-Match) if an entity-tag has been provided by the origin server. */
+        if (this._resHeaders.etag) {
+            headers['if-none-match'] = headers['if-none-match']
+                ? `${headers['if-none-match']}, ${this._resHeaders.etag}`
+                : this._resHeaders.etag;
+        }
+
+        // Clients MAY issue simple (non-subrange) GET requests with either weak validators or strong validators. Clients MUST NOT use weak validators in other forms of request.
+        const forbidsWeakValidators =
+            headers['accept-ranges'] ||
+            headers['if-match'] ||
+            headers['if-unmodified-since'] ||
+            (this._method && this._method != 'GET');
+
+        /* SHOULD send the Last-Modified value in non-subrange cache validation requests (using If-Modified-Since) if only a Last-Modified value has been provided by the origin server.
+        Note: This implementation does not understand partial responses (206) */
+        if (forbidsWeakValidators) {
+            delete headers['if-modified-since'];
+
+            if (headers['if-none-match']) {
+                const etags = headers['if-none-match']
+                    .split(/,/)
+                    .filter(etag => {
+                        return !/^\s*W\//.test(etag);
+                    });
+                if (!etags.length) {
+                    delete headers['if-none-match'];
+                } else {
+                    headers['if-none-match'] = etags.join(',').trim();
+                }
+            }
+        } else if (
+            this._resHeaders['last-modified'] &&
+            !headers['if-modified-since']
+        ) {
+            headers['if-modified-since'] = this._resHeaders['last-modified'];
+        }
+
+        return headers;
+    }
+
+    /**
+     * Creates new CachePolicy with information combined from the previews response,
+     * and the new revalidation response.
+     *
+     * Returns {policy, modified} where modified is a boolean indicating
+     * whether the response body has been modified, and old cached body can't be used.
+     *
+     * @return {Object} {policy: CachePolicy, modified: Boolean}
+     */
+    revalidatedPolicy(request, response) {
+        this._assertRequestHasHeaders(request);
+        if(this._useStaleIfError() && isErrorResponse(response)) {  // I consider the revalidation request unsuccessful
+          return {
+            modified: false,
+            matches: false,
+            policy: this,
+          };
+        }
+        if (!response || !response.headers) {
+            throw Error('Response headers missing');
+        }
+
+        // These aren't going to be supported exactly, since one CachePolicy object
+        // doesn't know about all the other cached objects.
+        let matches = false;
+        if (response.status !== undefined && response.status != 304) {
+            matches = false;
+        } else if (
+            response.headers.etag &&
+            !/^\s*W\//.test(response.headers.etag)
+        ) {
+            // "All of the stored responses with the same strong validator are selected.
+            // If none of the stored responses contain the same strong validator,
+            // then the cache MUST NOT use the new response to update any stored responses."
+            matches =
+                this._resHeaders.etag &&
+                this._resHeaders.etag.replace(/^\s*W\//, '') ===
+                    response.headers.etag;
+        } else if (this._resHeaders.etag && response.headers.etag) {
+            // "If the new response contains a weak validator and that validator corresponds
+            // to one of the cache's stored responses,
+            // then the most recent of those matching stored responses is selected for update."
+            matches =
+                this._resHeaders.etag.replace(/^\s*W\//, '') ===
+                response.headers.etag.replace(/^\s*W\//, '');
+        } else if (this._resHeaders['last-modified']) {
+            matches =
+                this._resHeaders['last-modified'] ===
+                response.headers['last-modified'];
+        } else {
+            // If the new response does not include any form of validator (such as in the case where
+            // a client generates an If-Modified-Since request from a source other than the Last-Modified
+            // response header field), and there is only one stored response, and that stored response also
+            // lacks a validator, then that stored response is selected for update.
+            if (
+                !this._resHeaders.etag &&
+                !this._resHeaders['last-modified'] &&
+                !response.headers.etag &&
+                !response.headers['last-modified']
+            ) {
+                matches = true;
+            }
+        }
+
+        if (!matches) {
+            return {
+                policy: new this.constructor(request, response),
+                // Client receiving 304 without body, even if it's invalid/mismatched has no option
+                // but to reuse a cached body. We don't have a good way to tell clients to do
+                // error recovery in such case.
+                modified: response.status != 304,
+                matches: false,
+            };
+        }
+
+        // use other header fields provided in the 304 (Not Modified) response to replace all instances
+        // of the corresponding header fields in the stored response.
+        const headers = {};
+        for (const k in this._resHeaders) {
+            headers[k] =
+                k in response.headers && !excludedFromRevalidationUpdate[k]
+                    ? response.headers[k]
+                    : this._resHeaders[k];
+        }
+
+        const newResponse = Object.assign({}, response, {
+            status: this._status,
+            method: this._method,
+            headers,
+        });
+        return {
+            policy: new this.constructor(request, newResponse, {
+                shared: this._isShared,
+                cacheHeuristic: this._cacheHeuristic,
+                immutableMinTimeToLive: this._immutableMinTtl,
+            }),
+            modified: false,
+            matches: true,
+        };
+    }
+};
diff --git a/node_modules/http-cache-semantics/package.json b/node_modules/http-cache-semantics/package.json
new file mode 100644
index 0000000..defbb04
--- /dev/null
+++ b/node_modules/http-cache-semantics/package.json
@@ -0,0 +1,18 @@
+{
+    "name": "http-cache-semantics",
+    "version": "4.1.1",
+    "description": "Parses Cache-Control and other headers. Helps building correct HTTP caches and proxies",
+    "repository": "https://github.com/kornelski/http-cache-semantics.git",
+    "main": "index.js",
+    "scripts": {
+        "test": "mocha"
+    },
+    "files": [
+        "index.js"
+    ],
+    "author": "Kornel Lesiński <kornel@geekhood.net> (https://kornel.ski/)",
+    "license": "BSD-2-Clause",
+    "devDependencies": {
+        "mocha": "^10.0"
+    }
+}
diff --git a/node_modules/http-proxy-agent/README.md b/node_modules/http-proxy-agent/README.md
new file mode 100644
index 0000000..d60e206
--- /dev/null
+++ b/node_modules/http-proxy-agent/README.md
@@ -0,0 +1,74 @@
+http-proxy-agent
+================
+### An HTTP(s) proxy `http.Agent` implementation for HTTP
+[![Build Status](https://github.com/TooTallNate/node-http-proxy-agent/workflows/Node%20CI/badge.svg)](https://github.com/TooTallNate/node-http-proxy-agent/actions?workflow=Node+CI)
+
+This module provides an `http.Agent` implementation that connects to a specified
+HTTP or HTTPS proxy server, and can be used with the built-in `http` module.
+
+__Note:__ For HTTP proxy usage with the `https` module, check out
+[`node-https-proxy-agent`](https://github.com/TooTallNate/node-https-proxy-agent).
+
+Installation
+------------
+
+Install with `npm`:
+
+``` bash
+$ npm install http-proxy-agent
+```
+
+
+Example
+-------
+
+``` js
+var url = require('url');
+var http = require('http');
+var HttpProxyAgent = require('http-proxy-agent');
+
+// HTTP/HTTPS proxy to connect to
+var proxy = process.env.http_proxy || 'http://168.63.76.32:3128';
+console.log('using proxy server %j', proxy);
+
+// HTTP endpoint for the proxy to connect to
+var endpoint = process.argv[2] || 'http://nodejs.org/api/';
+console.log('attempting to GET %j', endpoint);
+var opts = url.parse(endpoint);
+
+// create an instance of the `HttpProxyAgent` class with the proxy server information
+var agent = new HttpProxyAgent(proxy);
+opts.agent = agent;
+
+http.get(opts, function (res) {
+  console.log('"response" event!', res.headers);
+  res.pipe(process.stdout);
+});
+```
+
+
+License
+-------
+
+(The MIT License)
+
+Copyright (c) 2013 Nathan Rajlich &lt;nathan@tootallnate.net&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/http-proxy-agent/dist/agent.d.ts b/node_modules/http-proxy-agent/dist/agent.d.ts
new file mode 100644
index 0000000..3f043f7
--- /dev/null
+++ b/node_modules/http-proxy-agent/dist/agent.d.ts
@@ -0,0 +1,32 @@
+/// <reference types="node" />
+import net from 'net';
+import { Agent, ClientRequest, RequestOptions } from 'agent-base';
+import { HttpProxyAgentOptions } from '.';
+interface HttpProxyAgentClientRequest extends ClientRequest {
+    path: string;
+    output?: string[];
+    outputData?: {
+        data: string;
+    }[];
+    _header?: string | null;
+    _implicitHeader(): void;
+}
+/**
+ * The `HttpProxyAgent` implements an HTTP Agent subclass that connects
+ * to the specified "HTTP proxy server" in order to proxy HTTP requests.
+ *
+ * @api public
+ */
+export default class HttpProxyAgent extends Agent {
+    private secureProxy;
+    private proxy;
+    constructor(_opts: string | HttpProxyAgentOptions);
+    /**
+     * Called when the node-core HTTP client library is creating a
+     * new HTTP request.
+     *
+     * @api protected
+     */
+    callback(req: HttpProxyAgentClientRequest, opts: RequestOptions): Promise<net.Socket>;
+}
+export {};
diff --git a/node_modules/http-proxy-agent/dist/agent.js b/node_modules/http-proxy-agent/dist/agent.js
new file mode 100644
index 0000000..0252850
--- /dev/null
+++ b/node_modules/http-proxy-agent/dist/agent.js
@@ -0,0 +1,145 @@
+"use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const net_1 = __importDefault(require("net"));
+const tls_1 = __importDefault(require("tls"));
+const url_1 = __importDefault(require("url"));
+const debug_1 = __importDefault(require("debug"));
+const once_1 = __importDefault(require("@tootallnate/once"));
+const agent_base_1 = require("agent-base");
+const debug = debug_1.default('http-proxy-agent');
+function isHTTPS(protocol) {
+    return typeof protocol === 'string' ? /^https:?$/i.test(protocol) : false;
+}
+/**
+ * The `HttpProxyAgent` implements an HTTP Agent subclass that connects
+ * to the specified "HTTP proxy server" in order to proxy HTTP requests.
+ *
+ * @api public
+ */
+class HttpProxyAgent extends agent_base_1.Agent {
+    constructor(_opts) {
+        let opts;
+        if (typeof _opts === 'string') {
+            opts = url_1.default.parse(_opts);
+        }
+        else {
+            opts = _opts;
+        }
+        if (!opts) {
+            throw new Error('an HTTP(S) proxy server `host` and `port` must be specified!');
+        }
+        debug('Creating new HttpProxyAgent instance: %o', opts);
+        super(opts);
+        const proxy = Object.assign({}, opts);
+        // If `true`, then connect to the proxy server over TLS.
+        // Defaults to `false`.
+        this.secureProxy = opts.secureProxy || isHTTPS(proxy.protocol);
+        // Prefer `hostname` over `host`, and set the `port` if needed.
+        proxy.host = proxy.hostname || proxy.host;
+        if (typeof proxy.port === 'string') {
+            proxy.port = parseInt(proxy.port, 10);
+        }
+        if (!proxy.port && proxy.host) {
+            proxy.port = this.secureProxy ? 443 : 80;
+        }
+        if (proxy.host && proxy.path) {
+            // If both a `host` and `path` are specified then it's most likely
+            // the result of a `url.parse()` call... we need to remove the
+            // `path` portion so that `net.connect()` doesn't attempt to open
+            // that as a Unix socket file.
+            delete proxy.path;
+            delete proxy.pathname;
+        }
+        this.proxy = proxy;
+    }
+    /**
+     * Called when the node-core HTTP client library is creating a
+     * new HTTP request.
+     *
+     * @api protected
+     */
+    callback(req, opts) {
+        return __awaiter(this, void 0, void 0, function* () {
+            const { proxy, secureProxy } = this;
+            const parsed = url_1.default.parse(req.path);
+            if (!parsed.protocol) {
+                parsed.protocol = 'http:';
+            }
+            if (!parsed.hostname) {
+                parsed.hostname = opts.hostname || opts.host || null;
+            }
+            if (parsed.port == null && typeof opts.port) {
+                parsed.port = String(opts.port);
+            }
+            if (parsed.port === '80') {
+                // if port is 80, then we can remove the port so that the
+                // ":80" portion is not on the produced URL
+                delete parsed.port;
+            }
+            // Change the `http.ClientRequest` instance's "path" field
+            // to the absolute path of the URL that will be requested.
+            req.path = url_1.default.format(parsed);
+            // Inject the `Proxy-Authorization` header if necessary.
+            if (proxy.auth) {
+                req.setHeader('Proxy-Authorization', `Basic ${Buffer.from(proxy.auth).toString('base64')}`);
+            }
+            // Create a socket connection to the proxy server.
+            let socket;
+            if (secureProxy) {
+                debug('Creating `tls.Socket`: %o', proxy);
+                socket = tls_1.default.connect(proxy);
+            }
+            else {
+                debug('Creating `net.Socket`: %o', proxy);
+                socket = net_1.default.connect(proxy);
+            }
+            // At this point, the http ClientRequest's internal `_header` field
+            // might have already been set. If this is the case then we'll need
+            // to re-generate the string since we just changed the `req.path`.
+            if (req._header) {
+                let first;
+                let endOfHeaders;
+                debug('Regenerating stored HTTP header string for request');
+                req._header = null;
+                req._implicitHeader();
+                if (req.output && req.output.length > 0) {
+                    // Node < 12
+                    debug('Patching connection write() output buffer with updated header');
+                    first = req.output[0];
+                    endOfHeaders = first.indexOf('\r\n\r\n') + 4;
+                    req.output[0] = req._header + first.substring(endOfHeaders);
+                    debug('Output buffer: %o', req.output);
+                }
+                else if (req.outputData && req.outputData.length > 0) {
+                    // Node >= 12
+                    debug('Patching connection write() output buffer with updated header');
+                    first = req.outputData[0].data;
+                    endOfHeaders = first.indexOf('\r\n\r\n') + 4;
+                    req.outputData[0].data =
+                        req._header + first.substring(endOfHeaders);
+                    debug('Output buffer: %o', req.outputData[0].data);
+                }
+            }
+            // Wait for the socket's `connect` event, so that this `callback()`
+            // function throws instead of the `http` request machinery. This is
+            // important for i.e. `PacProxyAgent` which determines a failed proxy
+            // connection via the `callback()` function throwing.
+            yield once_1.default(socket, 'connect');
+            return socket;
+        });
+    }
+}
+exports.default = HttpProxyAgent;
+//# sourceMappingURL=agent.js.map
\ No newline at end of file
diff --git a/node_modules/http-proxy-agent/dist/agent.js.map b/node_modules/http-proxy-agent/dist/agent.js.map
new file mode 100644
index 0000000..7a40762
--- /dev/null
+++ b/node_modules/http-proxy-agent/dist/agent.js.map
@@ -0,0 +1 @@
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diff --git a/node_modules/http-proxy-agent/dist/index.d.ts b/node_modules/http-proxy-agent/dist/index.d.ts
new file mode 100644
index 0000000..24bdb52
--- /dev/null
+++ b/node_modules/http-proxy-agent/dist/index.d.ts
@@ -0,0 +1,21 @@
+/// <reference types="node" />
+import net from 'net';
+import tls from 'tls';
+import { Url } from 'url';
+import { AgentOptions } from 'agent-base';
+import _HttpProxyAgent from './agent';
+declare function createHttpProxyAgent(opts: string | createHttpProxyAgent.HttpProxyAgentOptions): _HttpProxyAgent;
+declare namespace createHttpProxyAgent {
+    interface BaseHttpProxyAgentOptions {
+        secureProxy?: boolean;
+        host?: string | null;
+        path?: string | null;
+        port?: string | number | null;
+    }
+    export interface HttpProxyAgentOptions extends AgentOptions, BaseHttpProxyAgentOptions, Partial<Omit<Url & net.NetConnectOpts & tls.ConnectionOptions, keyof BaseHttpProxyAgentOptions>> {
+    }
+    export type HttpProxyAgent = _HttpProxyAgent;
+    export const HttpProxyAgent: typeof _HttpProxyAgent;
+    export {};
+}
+export = createHttpProxyAgent;
diff --git a/node_modules/http-proxy-agent/dist/index.js b/node_modules/http-proxy-agent/dist/index.js
new file mode 100644
index 0000000..0a71180
--- /dev/null
+++ b/node_modules/http-proxy-agent/dist/index.js
@@ -0,0 +1,14 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+const agent_1 = __importDefault(require("./agent"));
+function createHttpProxyAgent(opts) {
+    return new agent_1.default(opts);
+}
+(function (createHttpProxyAgent) {
+    createHttpProxyAgent.HttpProxyAgent = agent_1.default;
+    createHttpProxyAgent.prototype = agent_1.default.prototype;
+})(createHttpProxyAgent || (createHttpProxyAgent = {}));
+module.exports = createHttpProxyAgent;
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/node_modules/http-proxy-agent/dist/index.js.map b/node_modules/http-proxy-agent/dist/index.js.map
new file mode 100644
index 0000000..e07dae5
--- /dev/null
+++ b/node_modules/http-proxy-agent/dist/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";;;;AAIA,oDAAsC;AAEtC,SAAS,oBAAoB,CAC5B,IAAyD;IAEzD,OAAO,IAAI,eAAe,CAAC,IAAI,CAAC,CAAC;AAClC,CAAC;AAED,WAAU,oBAAoB;IAmBhB,mCAAc,GAAG,eAAe,CAAC;IAE9C,oBAAoB,CAAC,SAAS,GAAG,eAAe,CAAC,SAAS,CAAC;AAC5D,CAAC,EAtBS,oBAAoB,KAApB,oBAAoB,QAsB7B;AAED,iBAAS,oBAAoB,CAAC"}
\ No newline at end of file
diff --git a/node_modules/http-proxy-agent/package.json b/node_modules/http-proxy-agent/package.json
new file mode 100644
index 0000000..870dd5d
--- /dev/null
+++ b/node_modules/http-proxy-agent/package.json
@@ -0,0 +1,57 @@
+{
+  "name": "http-proxy-agent",
+  "version": "4.0.1",
+  "description": "An HTTP(s) proxy `http.Agent` implementation for HTTP",
+  "main": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "prebuild": "rimraf dist",
+    "build": "tsc",
+    "test": "mocha",
+    "test-lint": "eslint src --ext .js,.ts",
+    "prepublishOnly": "npm run build"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/TooTallNate/node-http-proxy-agent.git"
+  },
+  "keywords": [
+    "http",
+    "proxy",
+    "endpoint",
+    "agent"
+  ],
+  "author": "Nathan Rajlich <nathan@tootallnate.net> (http://n8.io/)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/TooTallNate/node-http-proxy-agent/issues"
+  },
+  "dependencies": {
+    "@tootallnate/once": "1",
+    "agent-base": "6",
+    "debug": "4"
+  },
+  "devDependencies": {
+    "@types/debug": "4",
+    "@types/node": "^12.12.11",
+    "@typescript-eslint/eslint-plugin": "1.6.0",
+    "@typescript-eslint/parser": "1.1.0",
+    "eslint": "5.16.0",
+    "eslint-config-airbnb": "17.1.0",
+    "eslint-config-prettier": "4.1.0",
+    "eslint-import-resolver-typescript": "1.1.1",
+    "eslint-plugin-import": "2.16.0",
+    "eslint-plugin-jsx-a11y": "6.2.1",
+    "eslint-plugin-react": "7.12.4",
+    "mocha": "^6.2.2",
+    "proxy": "1",
+    "rimraf": "^3.0.0",
+    "typescript": "^3.5.3"
+  },
+  "engines": {
+    "node": ">= 6"
+  }
+}
diff --git a/node_modules/https-proxy-agent/README.md b/node_modules/https-proxy-agent/README.md
new file mode 100644
index 0000000..328656a
--- /dev/null
+++ b/node_modules/https-proxy-agent/README.md
@@ -0,0 +1,137 @@
+https-proxy-agent
+================
+### An HTTP(s) proxy `http.Agent` implementation for HTTPS
+[![Build Status](https://github.com/TooTallNate/node-https-proxy-agent/workflows/Node%20CI/badge.svg)](https://github.com/TooTallNate/node-https-proxy-agent/actions?workflow=Node+CI)
+
+This module provides an `http.Agent` implementation that connects to a specified
+HTTP or HTTPS proxy server, and can be used with the built-in `https` module.
+
+Specifically, this `Agent` implementation connects to an intermediary "proxy"
+server and issues the [CONNECT HTTP method][CONNECT], which tells the proxy to
+open a direct TCP connection to the destination server.
+
+Since this agent implements the CONNECT HTTP method, it also works with other
+protocols that use this method when connecting over proxies (i.e. WebSockets).
+See the "Examples" section below for more.
+
+
+Installation
+------------
+
+Install with `npm`:
+
+``` bash
+$ npm install https-proxy-agent
+```
+
+
+Examples
+--------
+
+#### `https` module example
+
+``` js
+var url = require('url');
+var https = require('https');
+var HttpsProxyAgent = require('https-proxy-agent');
+
+// HTTP/HTTPS proxy to connect to
+var proxy = process.env.http_proxy || 'http://168.63.76.32:3128';
+console.log('using proxy server %j', proxy);
+
+// HTTPS endpoint for the proxy to connect to
+var endpoint = process.argv[2] || 'https://graph.facebook.com/tootallnate';
+console.log('attempting to GET %j', endpoint);
+var options = url.parse(endpoint);
+
+// create an instance of the `HttpsProxyAgent` class with the proxy server information
+var agent = new HttpsProxyAgent(proxy);
+options.agent = agent;
+
+https.get(options, function (res) {
+  console.log('"response" event!', res.headers);
+  res.pipe(process.stdout);
+});
+```
+
+#### `ws` WebSocket connection example
+
+``` js
+var url = require('url');
+var WebSocket = require('ws');
+var HttpsProxyAgent = require('https-proxy-agent');
+
+// HTTP/HTTPS proxy to connect to
+var proxy = process.env.http_proxy || 'http://168.63.76.32:3128';
+console.log('using proxy server %j', proxy);
+
+// WebSocket endpoint for the proxy to connect to
+var endpoint = process.argv[2] || 'ws://echo.websocket.org';
+var parsed = url.parse(endpoint);
+console.log('attempting to connect to WebSocket %j', endpoint);
+
+// create an instance of the `HttpsProxyAgent` class with the proxy server information
+var options = url.parse(proxy);
+
+var agent = new HttpsProxyAgent(options);
+
+// finally, initiate the WebSocket connection
+var socket = new WebSocket(endpoint, { agent: agent });
+
+socket.on('open', function () {
+  console.log('"open" event!');
+  socket.send('hello world');
+});
+
+socket.on('message', function (data, flags) {
+  console.log('"message" event! %j %j', data, flags);
+  socket.close();
+});
+```
+
+API
+---
+
+### new HttpsProxyAgent(Object options)
+
+The `HttpsProxyAgent` class implements an `http.Agent` subclass that connects
+to the specified "HTTP(s) proxy server" in order to proxy HTTPS and/or WebSocket
+requests. This is achieved by using the [HTTP `CONNECT` method][CONNECT].
+
+The `options` argument may either be a string URI of the proxy server to use, or an
+"options" object with more specific properties:
+
+  * `host` - String - Proxy host to connect to (may use `hostname` as well). Required.
+  * `port` - Number - Proxy port to connect to. Required.
+  * `protocol` - String - If `https:`, then use TLS to connect to the proxy.
+  * `headers` - Object - Additional HTTP headers to be sent on the HTTP CONNECT method.
+  * Any other options given are passed to the `net.connect()`/`tls.connect()` functions.
+
+
+License
+-------
+
+(The MIT License)
+
+Copyright (c) 2013 Nathan Rajlich &lt;nathan@tootallnate.net&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+[CONNECT]: http://en.wikipedia.org/wiki/HTTP_tunnel#HTTP_CONNECT_Tunneling
diff --git a/node_modules/https-proxy-agent/dist/agent.d.ts b/node_modules/https-proxy-agent/dist/agent.d.ts
new file mode 100644
index 0000000..4f1c636
--- /dev/null
+++ b/node_modules/https-proxy-agent/dist/agent.d.ts
@@ -0,0 +1,30 @@
+/// <reference types="node" />
+import net from 'net';
+import { Agent, ClientRequest, RequestOptions } from 'agent-base';
+import { HttpsProxyAgentOptions } from '.';
+/**
+ * The `HttpsProxyAgent` implements an HTTP Agent subclass that connects to
+ * the specified "HTTP(s) proxy server" in order to proxy HTTPS requests.
+ *
+ * Outgoing HTTP requests are first tunneled through the proxy server using the
+ * `CONNECT` HTTP request method to establish a connection to the proxy server,
+ * and then the proxy server connects to the destination target and issues the
+ * HTTP request from the proxy server.
+ *
+ * `https:` requests have their socket connection upgraded to TLS once
+ * the connection to the proxy server has been established.
+ *
+ * @api public
+ */
+export default class HttpsProxyAgent extends Agent {
+    private secureProxy;
+    private proxy;
+    constructor(_opts: string | HttpsProxyAgentOptions);
+    /**
+     * Called when the node-core HTTP client library is creating a
+     * new HTTP request.
+     *
+     * @api protected
+     */
+    callback(req: ClientRequest, opts: RequestOptions): Promise<net.Socket>;
+}
diff --git a/node_modules/https-proxy-agent/dist/agent.js b/node_modules/https-proxy-agent/dist/agent.js
new file mode 100644
index 0000000..75d1136
--- /dev/null
+++ b/node_modules/https-proxy-agent/dist/agent.js
@@ -0,0 +1,177 @@
+"use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const net_1 = __importDefault(require("net"));
+const tls_1 = __importDefault(require("tls"));
+const url_1 = __importDefault(require("url"));
+const assert_1 = __importDefault(require("assert"));
+const debug_1 = __importDefault(require("debug"));
+const agent_base_1 = require("agent-base");
+const parse_proxy_response_1 = __importDefault(require("./parse-proxy-response"));
+const debug = debug_1.default('https-proxy-agent:agent');
+/**
+ * The `HttpsProxyAgent` implements an HTTP Agent subclass that connects to
+ * the specified "HTTP(s) proxy server" in order to proxy HTTPS requests.
+ *
+ * Outgoing HTTP requests are first tunneled through the proxy server using the
+ * `CONNECT` HTTP request method to establish a connection to the proxy server,
+ * and then the proxy server connects to the destination target and issues the
+ * HTTP request from the proxy server.
+ *
+ * `https:` requests have their socket connection upgraded to TLS once
+ * the connection to the proxy server has been established.
+ *
+ * @api public
+ */
+class HttpsProxyAgent extends agent_base_1.Agent {
+    constructor(_opts) {
+        let opts;
+        if (typeof _opts === 'string') {
+            opts = url_1.default.parse(_opts);
+        }
+        else {
+            opts = _opts;
+        }
+        if (!opts) {
+            throw new Error('an HTTP(S) proxy server `host` and `port` must be specified!');
+        }
+        debug('creating new HttpsProxyAgent instance: %o', opts);
+        super(opts);
+        const proxy = Object.assign({}, opts);
+        // If `true`, then connect to the proxy server over TLS.
+        // Defaults to `false`.
+        this.secureProxy = opts.secureProxy || isHTTPS(proxy.protocol);
+        // Prefer `hostname` over `host`, and set the `port` if needed.
+        proxy.host = proxy.hostname || proxy.host;
+        if (typeof proxy.port === 'string') {
+            proxy.port = parseInt(proxy.port, 10);
+        }
+        if (!proxy.port && proxy.host) {
+            proxy.port = this.secureProxy ? 443 : 80;
+        }
+        // ALPN is supported by Node.js >= v5.
+        // attempt to negotiate http/1.1 for proxy servers that support http/2
+        if (this.secureProxy && !('ALPNProtocols' in proxy)) {
+            proxy.ALPNProtocols = ['http 1.1'];
+        }
+        if (proxy.host && proxy.path) {
+            // If both a `host` and `path` are specified then it's most likely
+            // the result of a `url.parse()` call... we need to remove the
+            // `path` portion so that `net.connect()` doesn't attempt to open
+            // that as a Unix socket file.
+            delete proxy.path;
+            delete proxy.pathname;
+        }
+        this.proxy = proxy;
+    }
+    /**
+     * Called when the node-core HTTP client library is creating a
+     * new HTTP request.
+     *
+     * @api protected
+     */
+    callback(req, opts) {
+        return __awaiter(this, void 0, void 0, function* () {
+            const { proxy, secureProxy } = this;
+            // Create a socket connection to the proxy server.
+            let socket;
+            if (secureProxy) {
+                debug('Creating `tls.Socket`: %o', proxy);
+                socket = tls_1.default.connect(proxy);
+            }
+            else {
+                debug('Creating `net.Socket`: %o', proxy);
+                socket = net_1.default.connect(proxy);
+            }
+            const headers = Object.assign({}, proxy.headers);
+            const hostname = `${opts.host}:${opts.port}`;
+            let payload = `CONNECT ${hostname} HTTP/1.1\r\n`;
+            // Inject the `Proxy-Authorization` header if necessary.
+            if (proxy.auth) {
+                headers['Proxy-Authorization'] = `Basic ${Buffer.from(proxy.auth).toString('base64')}`;
+            }
+            // The `Host` header should only include the port
+            // number when it is not the default port.
+            let { host, port, secureEndpoint } = opts;
+            if (!isDefaultPort(port, secureEndpoint)) {
+                host += `:${port}`;
+            }
+            headers.Host = host;
+            headers.Connection = 'close';
+            for (const name of Object.keys(headers)) {
+                payload += `${name}: ${headers[name]}\r\n`;
+            }
+            const proxyResponsePromise = parse_proxy_response_1.default(socket);
+            socket.write(`${payload}\r\n`);
+            const { statusCode, buffered } = yield proxyResponsePromise;
+            if (statusCode === 200) {
+                req.once('socket', resume);
+                if (opts.secureEndpoint) {
+                    // The proxy is connecting to a TLS server, so upgrade
+                    // this socket connection to a TLS connection.
+                    debug('Upgrading socket connection to TLS');
+                    const servername = opts.servername || opts.host;
+                    return tls_1.default.connect(Object.assign(Object.assign({}, omit(opts, 'host', 'hostname', 'path', 'port')), { socket,
+                        servername }));
+                }
+                return socket;
+            }
+            // Some other status code that's not 200... need to re-play the HTTP
+            // header "data" events onto the socket once the HTTP machinery is
+            // attached so that the node core `http` can parse and handle the
+            // error status code.
+            // Close the original socket, and a new "fake" socket is returned
+            // instead, so that the proxy doesn't get the HTTP request
+            // written to it (which may contain `Authorization` headers or other
+            // sensitive data).
+            //
+            // See: https://hackerone.com/reports/541502
+            socket.destroy();
+            const fakeSocket = new net_1.default.Socket({ writable: false });
+            fakeSocket.readable = true;
+            // Need to wait for the "socket" event to re-play the "data" events.
+            req.once('socket', (s) => {
+                debug('replaying proxy buffer for failed request');
+                assert_1.default(s.listenerCount('data') > 0);
+                // Replay the "buffered" Buffer onto the fake `socket`, since at
+                // this point the HTTP module machinery has been hooked up for
+                // the user.
+                s.push(buffered);
+                s.push(null);
+            });
+            return fakeSocket;
+        });
+    }
+}
+exports.default = HttpsProxyAgent;
+function resume(socket) {
+    socket.resume();
+}
+function isDefaultPort(port, secure) {
+    return Boolean((!secure && port === 80) || (secure && port === 443));
+}
+function isHTTPS(protocol) {
+    return typeof protocol === 'string' ? /^https:?$/i.test(protocol) : false;
+}
+function omit(obj, ...keys) {
+    const ret = {};
+    let key;
+    for (key in obj) {
+        if (!keys.includes(key)) {
+            ret[key] = obj[key];
+        }
+    }
+    return ret;
+}
+//# sourceMappingURL=agent.js.map
\ No newline at end of file
diff --git a/node_modules/https-proxy-agent/dist/agent.js.map b/node_modules/https-proxy-agent/dist/agent.js.map
new file mode 100644
index 0000000..0af6c17
--- /dev/null
+++ b/node_modules/https-proxy-agent/dist/agent.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/node_modules/https-proxy-agent/dist/index.d.ts b/node_modules/https-proxy-agent/dist/index.d.ts
new file mode 100644
index 0000000..0d60062
--- /dev/null
+++ b/node_modules/https-proxy-agent/dist/index.d.ts
@@ -0,0 +1,23 @@
+/// <reference types="node" />
+import net from 'net';
+import tls from 'tls';
+import { Url } from 'url';
+import { AgentOptions } from 'agent-base';
+import { OutgoingHttpHeaders } from 'http';
+import _HttpsProxyAgent from './agent';
+declare function createHttpsProxyAgent(opts: string | createHttpsProxyAgent.HttpsProxyAgentOptions): _HttpsProxyAgent;
+declare namespace createHttpsProxyAgent {
+    interface BaseHttpsProxyAgentOptions {
+        headers?: OutgoingHttpHeaders;
+        secureProxy?: boolean;
+        host?: string | null;
+        path?: string | null;
+        port?: string | number | null;
+    }
+    export interface HttpsProxyAgentOptions extends AgentOptions, BaseHttpsProxyAgentOptions, Partial<Omit<Url & net.NetConnectOpts & tls.ConnectionOptions, keyof BaseHttpsProxyAgentOptions>> {
+    }
+    export type HttpsProxyAgent = _HttpsProxyAgent;
+    export const HttpsProxyAgent: typeof _HttpsProxyAgent;
+    export {};
+}
+export = createHttpsProxyAgent;
diff --git a/node_modules/https-proxy-agent/dist/index.js b/node_modules/https-proxy-agent/dist/index.js
new file mode 100644
index 0000000..b03e763
--- /dev/null
+++ b/node_modules/https-proxy-agent/dist/index.js
@@ -0,0 +1,14 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+const agent_1 = __importDefault(require("./agent"));
+function createHttpsProxyAgent(opts) {
+    return new agent_1.default(opts);
+}
+(function (createHttpsProxyAgent) {
+    createHttpsProxyAgent.HttpsProxyAgent = agent_1.default;
+    createHttpsProxyAgent.prototype = agent_1.default.prototype;
+})(createHttpsProxyAgent || (createHttpsProxyAgent = {}));
+module.exports = createHttpsProxyAgent;
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/node_modules/https-proxy-agent/dist/index.js.map b/node_modules/https-proxy-agent/dist/index.js.map
new file mode 100644
index 0000000..f3ce559
--- /dev/null
+++ b/node_modules/https-proxy-agent/dist/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";;;;AAKA,oDAAuC;AAEvC,SAAS,qBAAqB,CAC7B,IAA2D;IAE3D,OAAO,IAAI,eAAgB,CAAC,IAAI,CAAC,CAAC;AACnC,CAAC;AAED,WAAU,qBAAqB;IAoBjB,qCAAe,GAAG,eAAgB,CAAC;IAEhD,qBAAqB,CAAC,SAAS,GAAG,eAAgB,CAAC,SAAS,CAAC;AAC9D,CAAC,EAvBS,qBAAqB,KAArB,qBAAqB,QAuB9B;AAED,iBAAS,qBAAqB,CAAC"}
\ No newline at end of file
diff --git a/node_modules/https-proxy-agent/dist/parse-proxy-response.d.ts b/node_modules/https-proxy-agent/dist/parse-proxy-response.d.ts
new file mode 100644
index 0000000..7565674
--- /dev/null
+++ b/node_modules/https-proxy-agent/dist/parse-proxy-response.d.ts
@@ -0,0 +1,7 @@
+/// <reference types="node" />
+import { Readable } from 'stream';
+export interface ProxyResponse {
+    statusCode: number;
+    buffered: Buffer;
+}
+export default function parseProxyResponse(socket: Readable): Promise<ProxyResponse>;
diff --git a/node_modules/https-proxy-agent/dist/parse-proxy-response.js b/node_modules/https-proxy-agent/dist/parse-proxy-response.js
new file mode 100644
index 0000000..aa5ce3c
--- /dev/null
+++ b/node_modules/https-proxy-agent/dist/parse-proxy-response.js
@@ -0,0 +1,66 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const debug_1 = __importDefault(require("debug"));
+const debug = debug_1.default('https-proxy-agent:parse-proxy-response');
+function parseProxyResponse(socket) {
+    return new Promise((resolve, reject) => {
+        // we need to buffer any HTTP traffic that happens with the proxy before we get
+        // the CONNECT response, so that if the response is anything other than an "200"
+        // response code, then we can re-play the "data" events on the socket once the
+        // HTTP parser is hooked up...
+        let buffersLength = 0;
+        const buffers = [];
+        function read() {
+            const b = socket.read();
+            if (b)
+                ondata(b);
+            else
+                socket.once('readable', read);
+        }
+        function cleanup() {
+            socket.removeListener('end', onend);
+            socket.removeListener('error', onerror);
+            socket.removeListener('close', onclose);
+            socket.removeListener('readable', read);
+        }
+        function onclose(err) {
+            debug('onclose had error %o', err);
+        }
+        function onend() {
+            debug('onend');
+        }
+        function onerror(err) {
+            cleanup();
+            debug('onerror %o', err);
+            reject(err);
+        }
+        function ondata(b) {
+            buffers.push(b);
+            buffersLength += b.length;
+            const buffered = Buffer.concat(buffers, buffersLength);
+            const endOfHeaders = buffered.indexOf('\r\n\r\n');
+            if (endOfHeaders === -1) {
+                // keep buffering
+                debug('have not received end of HTTP headers yet...');
+                read();
+                return;
+            }
+            const firstLine = buffered.toString('ascii', 0, buffered.indexOf('\r\n'));
+            const statusCode = +firstLine.split(' ')[1];
+            debug('got proxy server response: %o', firstLine);
+            resolve({
+                statusCode,
+                buffered
+            });
+        }
+        socket.on('error', onerror);
+        socket.on('close', onclose);
+        socket.on('end', onend);
+        read();
+    });
+}
+exports.default = parseProxyResponse;
+//# sourceMappingURL=parse-proxy-response.js.map
\ No newline at end of file
diff --git a/node_modules/https-proxy-agent/dist/parse-proxy-response.js.map b/node_modules/https-proxy-agent/dist/parse-proxy-response.js.map
new file mode 100644
index 0000000..bacdb84
--- /dev/null
+++ b/node_modules/https-proxy-agent/dist/parse-proxy-response.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"parse-proxy-response.js","sourceRoot":"","sources":["../src/parse-proxy-response.ts"],"names":[],"mappings":";;;;;AAAA,kDAAgC;AAGhC,MAAM,KAAK,GAAG,eAAW,CAAC,wCAAwC,CAAC,CAAC;AAOpE,SAAwB,kBAAkB,CACzC,MAAgB;IAEhB,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;QACtC,+EAA+E;QAC/E,gFAAgF;QAChF,8EAA8E;QAC9E,8BAA8B;QAC9B,IAAI,aAAa,GAAG,CAAC,CAAC;QACtB,MAAM,OAAO,GAAa,EAAE,CAAC;QAE7B,SAAS,IAAI;YACZ,MAAM,CAAC,GAAG,MAAM,CAAC,IAAI,EAAE,CAAC;YACxB,IAAI,CAAC;gBAAE,MAAM,CAAC,CAAC,CAAC,CAAC;;gBACZ,MAAM,CAAC,IAAI,CAAC,UAAU,EAAE,IAAI,CAAC,CAAC;QACpC,CAAC;QAED,SAAS,OAAO;YACf,MAAM,CAAC,cAAc,CAAC,KAAK,EAAE,KAAK,CAAC,CAAC;YACpC,MAAM,CAAC,cAAc,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;YACxC,MAAM,CAAC,cAAc,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;YACxC,MAAM,CAAC,cAAc,CAAC,UAAU,EAAE,IAAI,CAAC,CAAC;QACzC,CAAC;QAED,SAAS,OAAO,CAAC,GAAW;YAC3B,KAAK,CAAC,sBAAsB,EAAE,GAAG,CAAC,CAAC;QACpC,CAAC;QAED,SAAS,KAAK;YACb,KAAK,CAAC,OAAO,CAAC,CAAC;QAChB,CAAC;QAED,SAAS,OAAO,CAAC,GAAU;YAC1B,OAAO,EAAE,CAAC;YACV,KAAK,CAAC,YAAY,EAAE,GAAG,CAAC,CAAC;YACzB,MAAM,CAAC,GAAG,CAAC,CAAC;QACb,CAAC;QAED,SAAS,MAAM,CAAC,CAAS;YACxB,OAAO,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC;YAChB,aAAa,IAAI,CAAC,CAAC,MAAM,CAAC;YAE1B,MAAM,QAAQ,GAAG,MAAM,CAAC,MAAM,CAAC,OAAO,EAAE,aAAa,CAAC,CAAC;YACvD,MAAM,YAAY,GAAG,QAAQ,CAAC,OAAO,CAAC,UAAU,CAAC,CAAC;YAElD,IAAI,YAAY,KAAK,CAAC,CAAC,EAAE;gBACxB,iBAAiB;gBACjB,KAAK,CAAC,8CAA8C,CAAC,CAAC;gBACtD,IAAI,EAAE,CAAC;gBACP,OAAO;aACP;YAED,MAAM,SAAS,GAAG,QAAQ,CAAC,QAAQ,CAClC,OAAO,EACP,CAAC,EACD,QAAQ,CAAC,OAAO,CAAC,MAAM,CAAC,CACxB,CAAC;YACF,MAAM,UAAU,GAAG,CAAC,SAAS,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC,CAAC;YAC5C,KAAK,CAAC,+BAA+B,EAAE,SAAS,CAAC,CAAC;YAClD,OAAO,CAAC;gBACP,UAAU;gBACV,QAAQ;aACR,CAAC,CAAC;QACJ,CAAC;QAED,MAAM,CAAC,EAAE,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;QAC5B,MAAM,CAAC,EAAE,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;QAC5B,MAAM,CAAC,EAAE,CAAC,KAAK,EAAE,KAAK,CAAC,CAAC;QAExB,IAAI,EAAE,CAAC;IACR,CAAC,CAAC,CAAC;AACJ,CAAC;AAvED,qCAuEC"}
\ No newline at end of file
diff --git a/node_modules/https-proxy-agent/package.json b/node_modules/https-proxy-agent/package.json
new file mode 100644
index 0000000..fb2aba1
--- /dev/null
+++ b/node_modules/https-proxy-agent/package.json
@@ -0,0 +1,56 @@
+{
+  "name": "https-proxy-agent",
+  "version": "5.0.1",
+  "description": "An HTTP(s) proxy `http.Agent` implementation for HTTPS",
+  "main": "dist/index",
+  "types": "dist/index",
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "prebuild": "rimraf dist",
+    "build": "tsc",
+    "test": "mocha --reporter spec",
+    "test-lint": "eslint src --ext .js,.ts",
+    "prepublishOnly": "npm run build"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/TooTallNate/node-https-proxy-agent.git"
+  },
+  "keywords": [
+    "https",
+    "proxy",
+    "endpoint",
+    "agent"
+  ],
+  "author": "Nathan Rajlich <nathan@tootallnate.net> (http://n8.io/)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/TooTallNate/node-https-proxy-agent/issues"
+  },
+  "dependencies": {
+    "agent-base": "6",
+    "debug": "4"
+  },
+  "devDependencies": {
+    "@types/debug": "4",
+    "@types/node": "^12.12.11",
+    "@typescript-eslint/eslint-plugin": "1.6.0",
+    "@typescript-eslint/parser": "1.1.0",
+    "eslint": "5.16.0",
+    "eslint-config-airbnb": "17.1.0",
+    "eslint-config-prettier": "4.1.0",
+    "eslint-import-resolver-typescript": "1.1.1",
+    "eslint-plugin-import": "2.16.0",
+    "eslint-plugin-jsx-a11y": "6.2.1",
+    "eslint-plugin-react": "7.12.4",
+    "mocha": "^6.2.2",
+    "proxy": "1",
+    "rimraf": "^3.0.0",
+    "typescript": "^3.5.3"
+  },
+  "engines": {
+    "node": ">= 6"
+  }
+}
diff --git a/node_modules/humanize-ms/History.md b/node_modules/humanize-ms/History.md
new file mode 100644
index 0000000..b159587
--- /dev/null
+++ b/node_modules/humanize-ms/History.md
@@ -0,0 +1,25 @@
+
+1.2.1 / 2017-05-19
+==================
+
+  * fix: package.json to reduce vulnerabilities (#3)
+
+1.2.0 / 2016-05-21
+==================
+
+  * feat: warn with stack
+
+1.1.0 / 2016-04-04
+==================
+
+  * deps: upgrade ms to 0.7.0
+
+1.0.1 / 2014-12-31
+==================
+
+  * feat(index.js): warn when result is undefined
+
+1.0.0 / 2014-08-14
+==================
+
+  * init
diff --git a/node_modules/humanize-ms/LICENSE b/node_modules/humanize-ms/LICENSE
new file mode 100644
index 0000000..89de354
--- /dev/null
+++ b/node_modules/humanize-ms/LICENSE
@@ -0,0 +1,17 @@
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/node_modules/humanize-ms/README.md b/node_modules/humanize-ms/README.md
new file mode 100644
index 0000000..20a2ca3
--- /dev/null
+++ b/node_modules/humanize-ms/README.md
@@ -0,0 +1,40 @@
+humanize-ms
+---------------
+
+[![NPM version][npm-image]][npm-url]
+[![build status][travis-image]][travis-url]
+[![Test coverage][coveralls-image]][coveralls-url]
+[![Gittip][gittip-image]][gittip-url]
+[![David deps][david-image]][david-url]
+
+[npm-image]: https://img.shields.io/npm/v/humanize-ms.svg?style=flat
+[npm-url]: https://npmjs.org/package/humanize-ms
+[travis-image]: https://img.shields.io/travis/node-modules/humanize-ms.svg?style=flat
+[travis-url]: https://travis-ci.org/node-modules/humanize-ms
+[coveralls-image]: https://img.shields.io/coveralls/node-modules/humanize-ms.svg?style=flat
+[coveralls-url]: https://coveralls.io/r/node-modules/humanize-ms?branch=master
+[gittip-image]: https://img.shields.io/gittip/dead-horse.svg?style=flat
+[gittip-url]: https://www.gittip.com/dead-horse/
+[david-image]: https://img.shields.io/david/node-modules/humanize-ms.svg?style=flat
+[david-url]: https://david-dm.org/node-modules/humanize-ms
+
+transform humanize time to ms
+
+## Installation
+
+```bash
+$ npm install humanize-ms
+```
+
+## Examples
+
+```js
+var ms = require('humanize-ms');
+
+ms('1s') // 1000
+ms(1000) // 1000
+```
+
+### License
+
+MIT
diff --git a/node_modules/humanize-ms/index.js b/node_modules/humanize-ms/index.js
new file mode 100644
index 0000000..660df81
--- /dev/null
+++ b/node_modules/humanize-ms/index.js
@@ -0,0 +1,24 @@
+/*!
+ * humanize-ms - index.js
+ * Copyright(c) 2014 dead_horse <dead_horse@qq.com>
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ */
+
+var util = require('util');
+var ms = require('ms');
+
+module.exports = function (t) {
+  if (typeof t === 'number') return t;
+  var r = ms(t);
+  if (r === undefined) {
+    var err = new Error(util.format('humanize-ms(%j) result undefined', t));
+    console.warn(err.stack);
+  }
+  return r;
+};
diff --git a/node_modules/humanize-ms/package.json b/node_modules/humanize-ms/package.json
new file mode 100644
index 0000000..da4ab7f
--- /dev/null
+++ b/node_modules/humanize-ms/package.json
@@ -0,0 +1,37 @@
+{
+  "name": "humanize-ms",
+  "version": "1.2.1",
+  "description": "transform humanize time to ms",
+  "main": "index.js",
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "test": "make test"
+  },
+  "keywords": [
+    "humanize",
+    "ms"
+  ],
+  "author": {
+    "name": "dead-horse",
+    "email": "dead_horse@qq.com",
+    "url": "http://deadhorse.me"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/node-modules/humanize-ms"
+  },
+  "license": "MIT",
+  "dependencies": {
+    "ms": "^2.0.0"
+  },
+  "devDependencies": {
+    "autod": "*",
+    "beautify-benchmark": "~0.2.4",
+    "benchmark": "~1.0.0",
+    "istanbul": "*",
+    "mocha": "*",
+    "should": "*"
+  }
+}
diff --git a/node_modules/imurmurhash/README.md b/node_modules/imurmurhash/README.md
new file mode 100644
index 0000000..f35b20a
--- /dev/null
+++ b/node_modules/imurmurhash/README.md
@@ -0,0 +1,122 @@
+iMurmurHash.js
+==============
+
+An incremental implementation of the MurmurHash3 (32-bit) hashing algorithm for JavaScript based on [Gary Court's implementation](https://github.com/garycourt/murmurhash-js) with [kazuyukitanimura's modifications](https://github.com/kazuyukitanimura/murmurhash-js).
+
+This version works significantly faster than the non-incremental version if you need to hash many small strings into a single hash, since string concatenation (to build the single string to pass the non-incremental version) is fairly costly. In one case tested, using the incremental version was about 50% faster than concatenating 5-10 strings and then hashing.
+
+Installation
+------------
+
+To use iMurmurHash in the browser, [download the latest version](https://raw.github.com/jensyt/imurmurhash-js/master/imurmurhash.min.js) and include it as a script on your site.
+
+```html
+<script type="text/javascript" src="/scripts/imurmurhash.min.js"></script>
+<script>
+// Your code here, access iMurmurHash using the global object MurmurHash3
+</script>
+```
+
+---
+
+To use iMurmurHash in Node.js, install the module using NPM:
+
+```bash
+npm install imurmurhash
+```
+
+Then simply include it in your scripts:
+
+```javascript
+MurmurHash3 = require('imurmurhash');
+```
+
+Quick Example
+-------------
+
+```javascript
+// Create the initial hash
+var hashState = MurmurHash3('string');
+
+// Incrementally add text
+hashState.hash('more strings');
+hashState.hash('even more strings');
+
+// All calls can be chained if desired
+hashState.hash('and').hash('some').hash('more');
+
+// Get a result
+hashState.result();
+// returns 0xe4ccfe6b
+```
+
+Functions
+---------
+
+### MurmurHash3 ([string], [seed])
+Get a hash state object, optionally initialized with the given _string_ and _seed_. _Seed_ must be a positive integer if provided. Calling this function without the `new` keyword will return a cached state object that has been reset. This is safe to use as long as the object is only used from a single thread and no other hashes are created while operating on this one. If this constraint cannot be met, you can use `new` to create a new state object. For example:
+
+```javascript
+// Use the cached object, calling the function again will return the same
+// object (but reset, so the current state would be lost)
+hashState = MurmurHash3();
+...
+
+// Create a new object that can be safely used however you wish. Calling the
+// function again will simply return a new state object, and no state loss
+// will occur, at the cost of creating more objects.
+hashState = new MurmurHash3();
+```
+
+Both methods can be mixed however you like if you have different use cases.
+
+---
+
+### MurmurHash3.prototype.hash (string)
+Incrementally add _string_ to the hash. This can be called as many times as you want for the hash state object, including after a call to `result()`. Returns `this` so calls can be chained.
+
+---
+
+### MurmurHash3.prototype.result ()
+Get the result of the hash as a 32-bit positive integer. This performs the tail and finalizer portions of the algorithm, but does not store the result in the state object. This means that it is perfectly safe to get results and then continue adding strings via `hash`.
+
+```javascript
+// Do the whole string at once
+MurmurHash3('this is a test string').result();
+// 0x70529328
+
+// Do part of the string, get a result, then the other part
+var m = MurmurHash3('this is a');
+m.result();
+// 0xbfc4f834
+m.hash(' test string').result();
+// 0x70529328 (same as above)
+```
+
+---
+
+### MurmurHash3.prototype.reset ([seed])
+Reset the state object for reuse, optionally using the given _seed_ (defaults to 0 like the constructor). Returns `this` so calls can be chained.
+
+---
+
+License (MIT)
+-------------
+Copyright (c) 2013 Gary Court, Jens Taylor
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/imurmurhash/imurmurhash.js b/node_modules/imurmurhash/imurmurhash.js
new file mode 100644
index 0000000..e63146a
--- /dev/null
+++ b/node_modules/imurmurhash/imurmurhash.js
@@ -0,0 +1,138 @@
+/**
+ * @preserve
+ * JS Implementation of incremental MurmurHash3 (r150) (as of May 10, 2013)
+ *
+ * @author <a href="mailto:jensyt@gmail.com">Jens Taylor</a>
+ * @see http://github.com/homebrewing/brauhaus-diff
+ * @author <a href="mailto:gary.court@gmail.com">Gary Court</a>
+ * @see http://github.com/garycourt/murmurhash-js
+ * @author <a href="mailto:aappleby@gmail.com">Austin Appleby</a>
+ * @see http://sites.google.com/site/murmurhash/
+ */
+(function(){
+    var cache;
+
+    // Call this function without `new` to use the cached object (good for
+    // single-threaded environments), or with `new` to create a new object.
+    //
+    // @param {string} key A UTF-16 or ASCII string
+    // @param {number} seed An optional positive integer
+    // @return {object} A MurmurHash3 object for incremental hashing
+    function MurmurHash3(key, seed) {
+        var m = this instanceof MurmurHash3 ? this : cache;
+        m.reset(seed)
+        if (typeof key === 'string' && key.length > 0) {
+            m.hash(key);
+        }
+
+        if (m !== this) {
+            return m;
+        }
+    };
+
+    // Incrementally add a string to this hash
+    //
+    // @param {string} key A UTF-16 or ASCII string
+    // @return {object} this
+    MurmurHash3.prototype.hash = function(key) {
+        var h1, k1, i, top, len;
+
+        len = key.length;
+        this.len += len;
+
+        k1 = this.k1;
+        i = 0;
+        switch (this.rem) {
+            case 0: k1 ^= len > i ? (key.charCodeAt(i++) & 0xffff) : 0;
+            case 1: k1 ^= len > i ? (key.charCodeAt(i++) & 0xffff) << 8 : 0;
+            case 2: k1 ^= len > i ? (key.charCodeAt(i++) & 0xffff) << 16 : 0;
+            case 3:
+                k1 ^= len > i ? (key.charCodeAt(i) & 0xff) << 24 : 0;
+                k1 ^= len > i ? (key.charCodeAt(i++) & 0xff00) >> 8 : 0;
+        }
+
+        this.rem = (len + this.rem) & 3; // & 3 is same as % 4
+        len -= this.rem;
+        if (len > 0) {
+            h1 = this.h1;
+            while (1) {
+                k1 = (k1 * 0x2d51 + (k1 & 0xffff) * 0xcc9e0000) & 0xffffffff;
+                k1 = (k1 << 15) | (k1 >>> 17);
+                k1 = (k1 * 0x3593 + (k1 & 0xffff) * 0x1b870000) & 0xffffffff;
+
+                h1 ^= k1;
+                h1 = (h1 << 13) | (h1 >>> 19);
+                h1 = (h1 * 5 + 0xe6546b64) & 0xffffffff;
+
+                if (i >= len) {
+                    break;
+                }
+
+                k1 = ((key.charCodeAt(i++) & 0xffff)) ^
+                     ((key.charCodeAt(i++) & 0xffff) << 8) ^
+                     ((key.charCodeAt(i++) & 0xffff) << 16);
+                top = key.charCodeAt(i++);
+                k1 ^= ((top & 0xff) << 24) ^
+                      ((top & 0xff00) >> 8);
+            }
+
+            k1 = 0;
+            switch (this.rem) {
+                case 3: k1 ^= (key.charCodeAt(i + 2) & 0xffff) << 16;
+                case 2: k1 ^= (key.charCodeAt(i + 1) & 0xffff) << 8;
+                case 1: k1 ^= (key.charCodeAt(i) & 0xffff);
+            }
+
+            this.h1 = h1;
+        }
+
+        this.k1 = k1;
+        return this;
+    };
+
+    // Get the result of this hash
+    //
+    // @return {number} The 32-bit hash
+    MurmurHash3.prototype.result = function() {
+        var k1, h1;
+        
+        k1 = this.k1;
+        h1 = this.h1;
+
+        if (k1 > 0) {
+            k1 = (k1 * 0x2d51 + (k1 & 0xffff) * 0xcc9e0000) & 0xffffffff;
+            k1 = (k1 << 15) | (k1 >>> 17);
+            k1 = (k1 * 0x3593 + (k1 & 0xffff) * 0x1b870000) & 0xffffffff;
+            h1 ^= k1;
+        }
+
+        h1 ^= this.len;
+
+        h1 ^= h1 >>> 16;
+        h1 = (h1 * 0xca6b + (h1 & 0xffff) * 0x85eb0000) & 0xffffffff;
+        h1 ^= h1 >>> 13;
+        h1 = (h1 * 0xae35 + (h1 & 0xffff) * 0xc2b20000) & 0xffffffff;
+        h1 ^= h1 >>> 16;
+
+        return h1 >>> 0;
+    };
+
+    // Reset the hash object for reuse
+    //
+    // @param {number} seed An optional positive integer
+    MurmurHash3.prototype.reset = function(seed) {
+        this.h1 = typeof seed === 'number' ? seed : 0;
+        this.rem = this.k1 = this.len = 0;
+        return this;
+    };
+
+    // A cached object to use. This can be safely used if you're in a single-
+    // threaded environment, otherwise you need to create new hashes to use.
+    cache = new MurmurHash3();
+
+    if (typeof(module) != 'undefined') {
+        module.exports = MurmurHash3;
+    } else {
+        this.MurmurHash3 = MurmurHash3;
+    }
+}());
diff --git a/node_modules/imurmurhash/imurmurhash.min.js b/node_modules/imurmurhash/imurmurhash.min.js
new file mode 100644
index 0000000..dc0ee88
--- /dev/null
+++ b/node_modules/imurmurhash/imurmurhash.min.js
@@ -0,0 +1,12 @@
+/**
+ * @preserve
+ * JS Implementation of incremental MurmurHash3 (r150) (as of May 10, 2013)
+ *
+ * @author <a href="mailto:jensyt@gmail.com">Jens Taylor</a>
+ * @see http://github.com/homebrewing/brauhaus-diff
+ * @author <a href="mailto:gary.court@gmail.com">Gary Court</a>
+ * @see http://github.com/garycourt/murmurhash-js
+ * @author <a href="mailto:aappleby@gmail.com">Austin Appleby</a>
+ * @see http://sites.google.com/site/murmurhash/
+ */
+!function(){function t(h,r){var s=this instanceof t?this:e;return s.reset(r),"string"==typeof h&&h.length>0&&s.hash(h),s!==this?s:void 0}var e;t.prototype.hash=function(t){var e,h,r,s,i;switch(i=t.length,this.len+=i,h=this.k1,r=0,this.rem){case 0:h^=i>r?65535&t.charCodeAt(r++):0;case 1:h^=i>r?(65535&t.charCodeAt(r++))<<8:0;case 2:h^=i>r?(65535&t.charCodeAt(r++))<<16:0;case 3:h^=i>r?(255&t.charCodeAt(r))<<24:0,h^=i>r?(65280&t.charCodeAt(r++))>>8:0}if(this.rem=3&i+this.rem,i-=this.rem,i>0){for(e=this.h1;;){if(h=4294967295&11601*h+3432906752*(65535&h),h=h<<15|h>>>17,h=4294967295&13715*h+461832192*(65535&h),e^=h,e=e<<13|e>>>19,e=4294967295&5*e+3864292196,r>=i)break;h=65535&t.charCodeAt(r++)^(65535&t.charCodeAt(r++))<<8^(65535&t.charCodeAt(r++))<<16,s=t.charCodeAt(r++),h^=(255&s)<<24^(65280&s)>>8}switch(h=0,this.rem){case 3:h^=(65535&t.charCodeAt(r+2))<<16;case 2:h^=(65535&t.charCodeAt(r+1))<<8;case 1:h^=65535&t.charCodeAt(r)}this.h1=e}return this.k1=h,this},t.prototype.result=function(){var t,e;return t=this.k1,e=this.h1,t>0&&(t=4294967295&11601*t+3432906752*(65535&t),t=t<<15|t>>>17,t=4294967295&13715*t+461832192*(65535&t),e^=t),e^=this.len,e^=e>>>16,e=4294967295&51819*e+2246770688*(65535&e),e^=e>>>13,e=4294967295&44597*e+3266445312*(65535&e),e^=e>>>16,e>>>0},t.prototype.reset=function(t){return this.h1="number"==typeof t?t:0,this.rem=this.k1=this.len=0,this},e=new t,"undefined"!=typeof module?module.exports=t:this.MurmurHash3=t}();
\ No newline at end of file
diff --git a/node_modules/imurmurhash/package.json b/node_modules/imurmurhash/package.json
new file mode 100644
index 0000000..8a93edb
--- /dev/null
+++ b/node_modules/imurmurhash/package.json
@@ -0,0 +1,40 @@
+{
+  "name": "imurmurhash",
+  "version": "0.1.4",
+  "description": "An incremental implementation of MurmurHash3",
+  "homepage": "https://github.com/jensyt/imurmurhash-js",
+  "main": "imurmurhash.js",
+  "files": [
+    "imurmurhash.js",
+    "imurmurhash.min.js",
+    "package.json",
+    "README.md"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jensyt/imurmurhash-js"
+  },
+  "bugs": {
+    "url": "https://github.com/jensyt/imurmurhash-js/issues"
+  },
+  "keywords": [
+    "murmur",
+    "murmurhash",
+    "murmurhash3",
+    "hash",
+    "incremental"
+  ],
+  "author": {
+    "name": "Jens Taylor",
+    "email": "jensyt@gmail.com",
+    "url": "https://github.com/homebrewing"
+  },
+  "license": "MIT",
+  "dependencies": {
+  },
+  "devDependencies": {
+  },
+  "engines": {
+    "node": ">=0.8.19"
+  }
+}
diff --git a/node_modules/indent-string/index.d.ts b/node_modules/indent-string/index.d.ts
new file mode 100644
index 0000000..1185231
--- /dev/null
+++ b/node_modules/indent-string/index.d.ts
@@ -0,0 +1,42 @@
+declare namespace indentString {
+	interface Options {
+		/**
+		The string to use for the indent.
+
+		@default ' '
+		*/
+		readonly indent?: string;
+
+		/**
+		Also indent empty lines.
+
+		@default false
+		*/
+		readonly includeEmptyLines?: boolean;
+	}
+}
+
+/**
+Indent each line in a string.
+
+@param string - The string to indent.
+@param count - How many times you want `options.indent` repeated. Default: `1`.
+
+@example
+```
+import indentString = require('indent-string');
+
+indentString('Unicorns\nRainbows', 4);
+//=> '    Unicorns\n    Rainbows'
+
+indentString('Unicorns\nRainbows', 4, {indent: '♥'});
+//=> '♥♥♥♥Unicorns\n♥♥♥♥Rainbows'
+```
+*/
+declare function indentString(
+	string: string,
+	count?: number,
+	options?: indentString.Options
+): string;
+
+export = indentString;
diff --git a/node_modules/indent-string/index.js b/node_modules/indent-string/index.js
new file mode 100644
index 0000000..e1ab804
--- /dev/null
+++ b/node_modules/indent-string/index.js
@@ -0,0 +1,35 @@
+'use strict';
+
+module.exports = (string, count = 1, options) => {
+	options = {
+		indent: ' ',
+		includeEmptyLines: false,
+		...options
+	};
+
+	if (typeof string !== 'string') {
+		throw new TypeError(
+			`Expected \`input\` to be a \`string\`, got \`${typeof string}\``
+		);
+	}
+
+	if (typeof count !== 'number') {
+		throw new TypeError(
+			`Expected \`count\` to be a \`number\`, got \`${typeof count}\``
+		);
+	}
+
+	if (typeof options.indent !== 'string') {
+		throw new TypeError(
+			`Expected \`options.indent\` to be a \`string\`, got \`${typeof options.indent}\``
+		);
+	}
+
+	if (count === 0) {
+		return string;
+	}
+
+	const regex = options.includeEmptyLines ? /^/gm : /^(?!\s*$)/gm;
+
+	return string.replace(regex, options.indent.repeat(count));
+};
diff --git a/node_modules/indent-string/license b/node_modules/indent-string/license
new file mode 100644
index 0000000..e7af2f7
--- /dev/null
+++ b/node_modules/indent-string/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/indent-string/package.json b/node_modules/indent-string/package.json
new file mode 100644
index 0000000..497bb83
--- /dev/null
+++ b/node_modules/indent-string/package.json
@@ -0,0 +1,37 @@
+{
+	"name": "indent-string",
+	"version": "4.0.0",
+	"description": "Indent each line in a string",
+	"license": "MIT",
+	"repository": "sindresorhus/indent-string",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=8"
+	},
+	"scripts": {
+		"test": "xo && ava && tsd"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"indent",
+		"string",
+		"pad",
+		"align",
+		"line",
+		"text",
+		"each",
+		"every"
+	],
+	"devDependencies": {
+		"ava": "^1.4.1",
+		"tsd": "^0.7.2",
+		"xo": "^0.24.0"
+	}
+}
diff --git a/node_modules/indent-string/readme.md b/node_modules/indent-string/readme.md
new file mode 100644
index 0000000..49967de
--- /dev/null
+++ b/node_modules/indent-string/readme.md
@@ -0,0 +1,70 @@
+# indent-string [![Build Status](https://travis-ci.org/sindresorhus/indent-string.svg?branch=master)](https://travis-ci.org/sindresorhus/indent-string)
+
+> Indent each line in a string
+
+
+## Install
+
+```
+$ npm install indent-string
+```
+
+
+## Usage
+
+```js
+const indentString = require('indent-string');
+
+indentString('Unicorns\nRainbows', 4);
+//=> '    Unicorns\n    Rainbows'
+
+indentString('Unicorns\nRainbows', 4, {indent: '♥'});
+//=> '♥♥♥♥Unicorns\n♥♥♥♥Rainbows'
+```
+
+
+## API
+
+### indentString(string, [count], [options])
+
+#### string
+
+Type: `string`
+
+The string to indent.
+
+#### count
+
+Type: `number`<br>
+Default: `1`
+
+How many times you want `options.indent` repeated.
+
+#### options
+
+Type: `object`
+
+##### indent
+
+Type: `string`<br>
+Default: `' '`
+
+The string to use for the indent.
+
+##### includeEmptyLines
+
+Type: `boolean`<br>
+Default: `false`
+
+Also indent empty lines.
+
+
+## Related
+
+- [indent-string-cli](https://github.com/sindresorhus/indent-string-cli) - CLI for this module
+- [strip-indent](https://github.com/sindresorhus/strip-indent) - Strip leading whitespace from every line in a string
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/node_modules/infer-owner/LICENSE b/node_modules/infer-owner/LICENSE
new file mode 100644
index 0000000..20a4762
--- /dev/null
+++ b/node_modules/infer-owner/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) npm, Inc. and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/infer-owner/README.md b/node_modules/infer-owner/README.md
new file mode 100644
index 0000000..146caf7
--- /dev/null
+++ b/node_modules/infer-owner/README.md
@@ -0,0 +1,41 @@
+# infer-owner
+
+Infer the owner of a path based on the owner of its nearest existing parent
+
+## USAGE
+
+```js
+const inferOwner = require('infer-owner')
+
+inferOwner('/some/cache/folder/file').then(owner => {
+  // owner is {uid, gid} that should be attached to
+  // the /some/cache/folder/file, based on ownership
+  // of /some/cache/folder, /some/cache, /some, or /,
+  // whichever is the first to exist
+})
+
+// same, but not async
+const owner = inferOwner.sync('/some/cache/folder/file')
+
+// results are cached!  to reset the cache (eg, to change
+// permissions for whatever reason), do this:
+inferOwner.clearCache()
+```
+
+This module endeavors to be as performant as possible.  Parallel requests
+for ownership of the same path will only stat the directories one time.
+
+## API
+
+* `inferOwner(path) -> Promise<{ uid, gid }>`
+
+    If the path exists, return its uid and gid.  If it does not, look to
+    its parent, then its grandparent, and so on.
+
+* `inferOwner(path) -> { uid, gid }`
+
+    Sync form of `inferOwner(path)`.
+
+* `inferOwner.clearCache()`
+
+    Delete all cached ownership information and in-flight tracking.
diff --git a/node_modules/infer-owner/index.js b/node_modules/infer-owner/index.js
new file mode 100644
index 0000000..a7bddcb
--- /dev/null
+++ b/node_modules/infer-owner/index.js
@@ -0,0 +1,71 @@
+const cache = new Map()
+const fs = require('fs')
+const { dirname, resolve } = require('path')
+
+
+const lstat = path => new Promise((res, rej) =>
+  fs.lstat(path, (er, st) => er ? rej(er) : res(st)))
+
+const inferOwner = path => {
+  path = resolve(path)
+  if (cache.has(path))
+    return Promise.resolve(cache.get(path))
+
+  const statThen = st => {
+    const { uid, gid } = st
+    cache.set(path, { uid, gid })
+    return { uid, gid }
+  }
+  const parent = dirname(path)
+  const parentTrap = parent === path ? null : er => {
+    return inferOwner(parent).then((owner) => {
+      cache.set(path, owner)
+      return owner
+    })
+  }
+  return lstat(path).then(statThen, parentTrap)
+}
+
+const inferOwnerSync = path => {
+  path = resolve(path)
+  if (cache.has(path))
+    return cache.get(path)
+
+  const parent = dirname(path)
+
+  // avoid obscuring call site by re-throwing
+  // "catch" the error by returning from a finally,
+  // only if we're not at the root, and the parent call works.
+  let threw = true
+  try {
+    const st = fs.lstatSync(path)
+    threw = false
+    const { uid, gid } = st
+    cache.set(path, { uid, gid })
+    return { uid, gid }
+  } finally {
+    if (threw && parent !== path) {
+      const owner = inferOwnerSync(parent)
+      cache.set(path, owner)
+      return owner // eslint-disable-line no-unsafe-finally
+    }
+  }
+}
+
+const inflight = new Map()
+module.exports = path => {
+  path = resolve(path)
+  if (inflight.has(path))
+    return Promise.resolve(inflight.get(path))
+  const p = inferOwner(path).then(owner => {
+    inflight.delete(path)
+    return owner
+  })
+  inflight.set(path, p)
+  return p
+}
+module.exports.sync = inferOwnerSync
+module.exports.clearCache = () => {
+  cache.clear()
+  inflight.clear()
+}
diff --git a/node_modules/infer-owner/package.json b/node_modules/infer-owner/package.json
new file mode 100644
index 0000000..c4b2b6e
--- /dev/null
+++ b/node_modules/infer-owner/package.json
@@ -0,0 +1,26 @@
+{
+  "name": "infer-owner",
+  "version": "1.0.4",
+  "description": "Infer the owner of a path based on the owner of its nearest existing parent",
+  "author": "Isaac Z. Schlueter <i@izs.me> (https://izs.me)",
+  "license": "ISC",
+  "scripts": {
+    "test": "tap -J test/*.js --100",
+    "snap": "TAP_SNAPSHOT=1 tap -J test/*.js --100",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags"
+  },
+  "devDependencies": {
+    "mutate-fs": "^2.1.1",
+    "tap": "^12.4.2"
+  },
+  "main": "index.js",
+  "repository": "https://github.com/npm/infer-owner",
+  "publishConfig": {
+    "access": "public"
+  },
+  "files": [
+    "index.js"
+  ]
+}
diff --git a/node_modules/inflight/LICENSE b/node_modules/inflight/LICENSE
new file mode 100644
index 0000000..05eeeb8
--- /dev/null
+++ b/node_modules/inflight/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/inflight/README.md b/node_modules/inflight/README.md
new file mode 100644
index 0000000..6dc8929
--- /dev/null
+++ b/node_modules/inflight/README.md
@@ -0,0 +1,37 @@
+# inflight
+
+Add callbacks to requests in flight to avoid async duplication
+
+## USAGE
+
+```javascript
+var inflight = require('inflight')
+
+// some request that does some stuff
+function req(key, callback) {
+  // key is any random string.  like a url or filename or whatever.
+  //
+  // will return either a falsey value, indicating that the
+  // request for this key is already in flight, or a new callback
+  // which when called will call all callbacks passed to inflightk
+  // with the same key
+  callback = inflight(key, callback)
+
+  // If we got a falsey value back, then there's already a req going
+  if (!callback) return
+
+  // this is where you'd fetch the url or whatever
+  // callback is also once()-ified, so it can safely be assigned
+  // to multiple events etc.  First call wins.
+  setTimeout(function() {
+    callback(null, key)
+  }, 100)
+}
+
+// only assigns a single setTimeout
+// when it dings, all cbs get called
+req('foo', cb1)
+req('foo', cb2)
+req('foo', cb3)
+req('foo', cb4)
+```
diff --git a/node_modules/inflight/inflight.js b/node_modules/inflight/inflight.js
new file mode 100644
index 0000000..48202b3
--- /dev/null
+++ b/node_modules/inflight/inflight.js
@@ -0,0 +1,54 @@
+var wrappy = require('wrappy')
+var reqs = Object.create(null)
+var once = require('once')
+
+module.exports = wrappy(inflight)
+
+function inflight (key, cb) {
+  if (reqs[key]) {
+    reqs[key].push(cb)
+    return null
+  } else {
+    reqs[key] = [cb]
+    return makeres(key)
+  }
+}
+
+function makeres (key) {
+  return once(function RES () {
+    var cbs = reqs[key]
+    var len = cbs.length
+    var args = slice(arguments)
+
+    // XXX It's somewhat ambiguous whether a new callback added in this
+    // pass should be queued for later execution if something in the
+    // list of callbacks throws, or if it should just be discarded.
+    // However, it's such an edge case that it hardly matters, and either
+    // choice is likely as surprising as the other.
+    // As it happens, we do go ahead and schedule it for later execution.
+    try {
+      for (var i = 0; i < len; i++) {
+        cbs[i].apply(null, args)
+      }
+    } finally {
+      if (cbs.length > len) {
+        // added more in the interim.
+        // de-zalgo, just in case, but don't call again.
+        cbs.splice(0, len)
+        process.nextTick(function () {
+          RES.apply(null, args)
+        })
+      } else {
+        delete reqs[key]
+      }
+    }
+  })
+}
+
+function slice (args) {
+  var length = args.length
+  var array = []
+
+  for (var i = 0; i < length; i++) array[i] = args[i]
+  return array
+}
diff --git a/node_modules/inflight/package.json b/node_modules/inflight/package.json
new file mode 100644
index 0000000..6084d35
--- /dev/null
+++ b/node_modules/inflight/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "inflight",
+  "version": "1.0.6",
+  "description": "Add callbacks to requests in flight to avoid async duplication",
+  "main": "inflight.js",
+  "files": [
+    "inflight.js"
+  ],
+  "dependencies": {
+    "once": "^1.3.0",
+    "wrappy": "1"
+  },
+  "devDependencies": {
+    "tap": "^7.1.2"
+  },
+  "scripts": {
+    "test": "tap test.js --100"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/inflight.git"
+  },
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "bugs": {
+    "url": "https://github.com/isaacs/inflight/issues"
+  },
+  "homepage": "https://github.com/isaacs/inflight",
+  "license": "ISC"
+}
diff --git a/node_modules/ip/README.md b/node_modules/ip/README.md
new file mode 100644
index 0000000..22e5819
--- /dev/null
+++ b/node_modules/ip/README.md
@@ -0,0 +1,90 @@
+# IP  
+[![](https://badge.fury.io/js/ip.svg)](https://www.npmjs.com/package/ip)  
+
+IP address utilities for node.js
+
+## Installation
+
+###  npm
+```shell
+npm install ip
+```
+
+### git
+
+```shell
+git clone https://github.com/indutny/node-ip.git
+```
+  
+## Usage
+Get your ip address, compare ip addresses, validate ip addresses, etc.
+
+```js
+var ip = require('ip');
+
+ip.address() // my ip address
+ip.isEqual('::1', '::0:1'); // true
+ip.toBuffer('127.0.0.1') // Buffer([127, 0, 0, 1])
+ip.toString(new Buffer([127, 0, 0, 1])) // 127.0.0.1
+ip.fromPrefixLen(24) // 255.255.255.0
+ip.mask('192.168.1.134', '255.255.255.0') // 192.168.1.0
+ip.cidr('192.168.1.134/26') // 192.168.1.128
+ip.not('255.255.255.0') // 0.0.0.255
+ip.or('192.168.1.134', '0.0.0.255') // 192.168.1.255
+ip.isPrivate('127.0.0.1') // true
+ip.isV4Format('127.0.0.1'); // true
+ip.isV6Format('::ffff:127.0.0.1'); // true
+
+// operate on buffers in-place
+var buf = new Buffer(128);
+var offset = 64;
+ip.toBuffer('127.0.0.1', buf, offset);  // [127, 0, 0, 1] at offset 64
+ip.toString(buf, offset, 4);            // '127.0.0.1'
+
+// subnet information
+ip.subnet('192.168.1.134', '255.255.255.192')
+// { networkAddress: '192.168.1.128',
+//   firstAddress: '192.168.1.129',
+//   lastAddress: '192.168.1.190',
+//   broadcastAddress: '192.168.1.191',
+//   subnetMask: '255.255.255.192',
+//   subnetMaskLength: 26,
+//   numHosts: 62,
+//   length: 64,
+//   contains: function(addr){...} }
+ip.cidrSubnet('192.168.1.134/26')
+// Same as previous.
+
+// range checking
+ip.cidrSubnet('192.168.1.134/26').contains('192.168.1.190') // true
+
+
+// ipv4 long conversion
+ip.toLong('127.0.0.1'); // 2130706433
+ip.fromLong(2130706433); // '127.0.0.1'
+```
+
+### License
+
+This software is licensed under the MIT License.
+
+Copyright Fedor Indutny, 2012.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to permit
+persons to whom the Software is furnished to do so, subject to the
+following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/ip/lib/ip.js b/node_modules/ip/lib/ip.js
new file mode 100644
index 0000000..4b2adb5
--- /dev/null
+++ b/node_modules/ip/lib/ip.js
@@ -0,0 +1,422 @@
+const ip = exports;
+const { Buffer } = require('buffer');
+const os = require('os');
+
+ip.toBuffer = function (ip, buff, offset) {
+  offset = ~~offset;
+
+  let result;
+
+  if (this.isV4Format(ip)) {
+    result = buff || Buffer.alloc(offset + 4);
+    ip.split(/\./g).map((byte) => {
+      result[offset++] = parseInt(byte, 10) & 0xff;
+    });
+  } else if (this.isV6Format(ip)) {
+    const sections = ip.split(':', 8);
+
+    let i;
+    for (i = 0; i < sections.length; i++) {
+      const isv4 = this.isV4Format(sections[i]);
+      let v4Buffer;
+
+      if (isv4) {
+        v4Buffer = this.toBuffer(sections[i]);
+        sections[i] = v4Buffer.slice(0, 2).toString('hex');
+      }
+
+      if (v4Buffer && ++i < 8) {
+        sections.splice(i, 0, v4Buffer.slice(2, 4).toString('hex'));
+      }
+    }
+
+    if (sections[0] === '') {
+      while (sections.length < 8) sections.unshift('0');
+    } else if (sections[sections.length - 1] === '') {
+      while (sections.length < 8) sections.push('0');
+    } else if (sections.length < 8) {
+      for (i = 0; i < sections.length && sections[i] !== ''; i++);
+      const argv = [i, 1];
+      for (i = 9 - sections.length; i > 0; i--) {
+        argv.push('0');
+      }
+      sections.splice(...argv);
+    }
+
+    result = buff || Buffer.alloc(offset + 16);
+    for (i = 0; i < sections.length; i++) {
+      const word = parseInt(sections[i], 16);
+      result[offset++] = (word >> 8) & 0xff;
+      result[offset++] = word & 0xff;
+    }
+  }
+
+  if (!result) {
+    throw Error(`Invalid ip address: ${ip}`);
+  }
+
+  return result;
+};
+
+ip.toString = function (buff, offset, length) {
+  offset = ~~offset;
+  length = length || (buff.length - offset);
+
+  let result = [];
+  if (length === 4) {
+    // IPv4
+    for (let i = 0; i < length; i++) {
+      result.push(buff[offset + i]);
+    }
+    result = result.join('.');
+  } else if (length === 16) {
+    // IPv6
+    for (let i = 0; i < length; i += 2) {
+      result.push(buff.readUInt16BE(offset + i).toString(16));
+    }
+    result = result.join(':');
+    result = result.replace(/(^|:)0(:0)*:0(:|$)/, '$1::$3');
+    result = result.replace(/:{3,4}/, '::');
+  }
+
+  return result;
+};
+
+const ipv4Regex = /^(\d{1,3}\.){3,3}\d{1,3}$/;
+const ipv6Regex = /^(::)?(((\d{1,3}\.){3}(\d{1,3}){1})?([0-9a-f]){0,4}:{0,2}){1,8}(::)?$/i;
+
+ip.isV4Format = function (ip) {
+  return ipv4Regex.test(ip);
+};
+
+ip.isV6Format = function (ip) {
+  return ipv6Regex.test(ip);
+};
+
+function _normalizeFamily(family) {
+  if (family === 4) {
+    return 'ipv4';
+  }
+  if (family === 6) {
+    return 'ipv6';
+  }
+  return family ? family.toLowerCase() : 'ipv4';
+}
+
+ip.fromPrefixLen = function (prefixlen, family) {
+  if (prefixlen > 32) {
+    family = 'ipv6';
+  } else {
+    family = _normalizeFamily(family);
+  }
+
+  let len = 4;
+  if (family === 'ipv6') {
+    len = 16;
+  }
+  const buff = Buffer.alloc(len);
+
+  for (let i = 0, n = buff.length; i < n; ++i) {
+    let bits = 8;
+    if (prefixlen < 8) {
+      bits = prefixlen;
+    }
+    prefixlen -= bits;
+
+    buff[i] = ~(0xff >> bits) & 0xff;
+  }
+
+  return ip.toString(buff);
+};
+
+ip.mask = function (addr, mask) {
+  addr = ip.toBuffer(addr);
+  mask = ip.toBuffer(mask);
+
+  const result = Buffer.alloc(Math.max(addr.length, mask.length));
+
+  // Same protocol - do bitwise and
+  let i;
+  if (addr.length === mask.length) {
+    for (i = 0; i < addr.length; i++) {
+      result[i] = addr[i] & mask[i];
+    }
+  } else if (mask.length === 4) {
+    // IPv6 address and IPv4 mask
+    // (Mask low bits)
+    for (i = 0; i < mask.length; i++) {
+      result[i] = addr[addr.length - 4 + i] & mask[i];
+    }
+  } else {
+    // IPv6 mask and IPv4 addr
+    for (i = 0; i < result.length - 6; i++) {
+      result[i] = 0;
+    }
+
+    // ::ffff:ipv4
+    result[10] = 0xff;
+    result[11] = 0xff;
+    for (i = 0; i < addr.length; i++) {
+      result[i + 12] = addr[i] & mask[i + 12];
+    }
+    i += 12;
+  }
+  for (; i < result.length; i++) {
+    result[i] = 0;
+  }
+
+  return ip.toString(result);
+};
+
+ip.cidr = function (cidrString) {
+  const cidrParts = cidrString.split('/');
+
+  const addr = cidrParts[0];
+  if (cidrParts.length !== 2) {
+    throw new Error(`invalid CIDR subnet: ${addr}`);
+  }
+
+  const mask = ip.fromPrefixLen(parseInt(cidrParts[1], 10));
+
+  return ip.mask(addr, mask);
+};
+
+ip.subnet = function (addr, mask) {
+  const networkAddress = ip.toLong(ip.mask(addr, mask));
+
+  // Calculate the mask's length.
+  const maskBuffer = ip.toBuffer(mask);
+  let maskLength = 0;
+
+  for (let i = 0; i < maskBuffer.length; i++) {
+    if (maskBuffer[i] === 0xff) {
+      maskLength += 8;
+    } else {
+      let octet = maskBuffer[i] & 0xff;
+      while (octet) {
+        octet = (octet << 1) & 0xff;
+        maskLength++;
+      }
+    }
+  }
+
+  const numberOfAddresses = 2 ** (32 - maskLength);
+
+  return {
+    networkAddress: ip.fromLong(networkAddress),
+    firstAddress: numberOfAddresses <= 2
+      ? ip.fromLong(networkAddress)
+      : ip.fromLong(networkAddress + 1),
+    lastAddress: numberOfAddresses <= 2
+      ? ip.fromLong(networkAddress + numberOfAddresses - 1)
+      : ip.fromLong(networkAddress + numberOfAddresses - 2),
+    broadcastAddress: ip.fromLong(networkAddress + numberOfAddresses - 1),
+    subnetMask: mask,
+    subnetMaskLength: maskLength,
+    numHosts: numberOfAddresses <= 2
+      ? numberOfAddresses : numberOfAddresses - 2,
+    length: numberOfAddresses,
+    contains(other) {
+      return networkAddress === ip.toLong(ip.mask(other, mask));
+    },
+  };
+};
+
+ip.cidrSubnet = function (cidrString) {
+  const cidrParts = cidrString.split('/');
+
+  const addr = cidrParts[0];
+  if (cidrParts.length !== 2) {
+    throw new Error(`invalid CIDR subnet: ${addr}`);
+  }
+
+  const mask = ip.fromPrefixLen(parseInt(cidrParts[1], 10));
+
+  return ip.subnet(addr, mask);
+};
+
+ip.not = function (addr) {
+  const buff = ip.toBuffer(addr);
+  for (let i = 0; i < buff.length; i++) {
+    buff[i] = 0xff ^ buff[i];
+  }
+  return ip.toString(buff);
+};
+
+ip.or = function (a, b) {
+  a = ip.toBuffer(a);
+  b = ip.toBuffer(b);
+
+  // same protocol
+  if (a.length === b.length) {
+    for (let i = 0; i < a.length; ++i) {
+      a[i] |= b[i];
+    }
+    return ip.toString(a);
+
+  // mixed protocols
+  }
+  let buff = a;
+  let other = b;
+  if (b.length > a.length) {
+    buff = b;
+    other = a;
+  }
+
+  const offset = buff.length - other.length;
+  for (let i = offset; i < buff.length; ++i) {
+    buff[i] |= other[i - offset];
+  }
+
+  return ip.toString(buff);
+};
+
+ip.isEqual = function (a, b) {
+  a = ip.toBuffer(a);
+  b = ip.toBuffer(b);
+
+  // Same protocol
+  if (a.length === b.length) {
+    for (let i = 0; i < a.length; i++) {
+      if (a[i] !== b[i]) return false;
+    }
+    return true;
+  }
+
+  // Swap
+  if (b.length === 4) {
+    const t = b;
+    b = a;
+    a = t;
+  }
+
+  // a - IPv4, b - IPv6
+  for (let i = 0; i < 10; i++) {
+    if (b[i] !== 0) return false;
+  }
+
+  const word = b.readUInt16BE(10);
+  if (word !== 0 && word !== 0xffff) return false;
+
+  for (let i = 0; i < 4; i++) {
+    if (a[i] !== b[i + 12]) return false;
+  }
+
+  return true;
+};
+
+ip.isPrivate = function (addr) {
+  return /^(::f{4}:)?10\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$/i
+    .test(addr)
+    || /^(::f{4}:)?192\.168\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr)
+    || /^(::f{4}:)?172\.(1[6-9]|2\d|30|31)\.([0-9]{1,3})\.([0-9]{1,3})$/i
+      .test(addr)
+    || /^(::f{4}:)?127\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr)
+    || /^(::f{4}:)?169\.254\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr)
+    || /^f[cd][0-9a-f]{2}:/i.test(addr)
+    || /^fe80:/i.test(addr)
+    || /^::1$/.test(addr)
+    || /^::$/.test(addr);
+};
+
+ip.isPublic = function (addr) {
+  return !ip.isPrivate(addr);
+};
+
+ip.isLoopback = function (addr) {
+  return /^(::f{4}:)?127\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})/
+    .test(addr)
+    || /^fe80::1$/.test(addr)
+    || /^::1$/.test(addr)
+    || /^::$/.test(addr);
+};
+
+ip.loopback = function (family) {
+  //
+  // Default to `ipv4`
+  //
+  family = _normalizeFamily(family);
+
+  if (family !== 'ipv4' && family !== 'ipv6') {
+    throw new Error('family must be ipv4 or ipv6');
+  }
+
+  return family === 'ipv4' ? '127.0.0.1' : 'fe80::1';
+};
+
+//
+// ### function address (name, family)
+// #### @name {string|'public'|'private'} **Optional** Name or security
+//      of the network interface.
+// #### @family {ipv4|ipv6} **Optional** IP family of the address (defaults
+//      to ipv4).
+//
+// Returns the address for the network interface on the current system with
+// the specified `name`:
+//   * String: First `family` address of the interface.
+//             If not found see `undefined`.
+//   * 'public': the first public ip address of family.
+//   * 'private': the first private ip address of family.
+//   * undefined: First address with `ipv4` or loopback address `127.0.0.1`.
+//
+ip.address = function (name, family) {
+  const interfaces = os.networkInterfaces();
+
+  //
+  // Default to `ipv4`
+  //
+  family = _normalizeFamily(family);
+
+  //
+  // If a specific network interface has been named,
+  // return the address.
+  //
+  if (name && name !== 'private' && name !== 'public') {
+    const res = interfaces[name].filter((details) => {
+      const itemFamily = _normalizeFamily(details.family);
+      return itemFamily === family;
+    });
+    if (res.length === 0) {
+      return undefined;
+    }
+    return res[0].address;
+  }
+
+  const all = Object.keys(interfaces).map((nic) => {
+    //
+    // Note: name will only be `public` or `private`
+    // when this is called.
+    //
+    const addresses = interfaces[nic].filter((details) => {
+      details.family = _normalizeFamily(details.family);
+      if (details.family !== family || ip.isLoopback(details.address)) {
+        return false;
+      } if (!name) {
+        return true;
+      }
+
+      return name === 'public' ? ip.isPrivate(details.address)
+        : ip.isPublic(details.address);
+    });
+
+    return addresses.length ? addresses[0].address : undefined;
+  }).filter(Boolean);
+
+  return !all.length ? ip.loopback(family) : all[0];
+};
+
+ip.toLong = function (ip) {
+  let ipl = 0;
+  ip.split('.').forEach((octet) => {
+    ipl <<= 8;
+    ipl += parseInt(octet);
+  });
+  return (ipl >>> 0);
+};
+
+ip.fromLong = function (ipl) {
+  return (`${ipl >>> 24}.${
+    ipl >> 16 & 255}.${
+    ipl >> 8 & 255}.${
+    ipl & 255}`);
+};
diff --git a/node_modules/ip/package.json b/node_modules/ip/package.json
new file mode 100644
index 0000000..f0d95e9
--- /dev/null
+++ b/node_modules/ip/package.json
@@ -0,0 +1,25 @@
+{
+  "name": "ip",
+  "version": "2.0.0",
+  "author": "Fedor Indutny <fedor@indutny.com>",
+  "homepage": "https://github.com/indutny/node-ip",
+  "repository": {
+    "type": "git",
+    "url": "http://github.com/indutny/node-ip.git"
+  },
+  "files": [
+    "lib",
+    "README.md"
+  ],
+  "main": "lib/ip",
+  "devDependencies": {
+    "eslint": "^8.15.0",
+    "mocha": "^10.0.0"
+  },
+  "scripts": {
+    "lint": "eslint lib/*.js test/*.js",
+    "test": "npm run lint && mocha --reporter spec test/*-test.js",
+    "fix": "npm run lint -- --fix"
+  },
+  "license": "MIT"
+}
diff --git a/node_modules/is-fullwidth-code-point/index.d.ts b/node_modules/is-fullwidth-code-point/index.d.ts
new file mode 100644
index 0000000..729d202
--- /dev/null
+++ b/node_modules/is-fullwidth-code-point/index.d.ts
@@ -0,0 +1,17 @@
+/**
+Check if the character represented by a given [Unicode code point](https://en.wikipedia.org/wiki/Code_point) is [fullwidth](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms).
+
+@param codePoint - The [code point](https://en.wikipedia.org/wiki/Code_point) of a character.
+
+@example
+```
+import isFullwidthCodePoint from 'is-fullwidth-code-point';
+
+isFullwidthCodePoint('谢'.codePointAt(0));
+//=> true
+
+isFullwidthCodePoint('a'.codePointAt(0));
+//=> false
+```
+*/
+export default function isFullwidthCodePoint(codePoint: number): boolean;
diff --git a/node_modules/is-fullwidth-code-point/index.js b/node_modules/is-fullwidth-code-point/index.js
new file mode 100644
index 0000000..671f97f
--- /dev/null
+++ b/node_modules/is-fullwidth-code-point/index.js
@@ -0,0 +1,50 @@
+/* eslint-disable yoda */
+'use strict';
+
+const isFullwidthCodePoint = codePoint => {
+	if (Number.isNaN(codePoint)) {
+		return false;
+	}
+
+	// Code points are derived from:
+	// http://www.unix.org/Public/UNIDATA/EastAsianWidth.txt
+	if (
+		codePoint >= 0x1100 && (
+			codePoint <= 0x115F || // Hangul Jamo
+			codePoint === 0x2329 || // LEFT-POINTING ANGLE BRACKET
+			codePoint === 0x232A || // RIGHT-POINTING ANGLE BRACKET
+			// CJK Radicals Supplement .. Enclosed CJK Letters and Months
+			(0x2E80 <= codePoint && codePoint <= 0x3247 && codePoint !== 0x303F) ||
+			// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
+			(0x3250 <= codePoint && codePoint <= 0x4DBF) ||
+			// CJK Unified Ideographs .. Yi Radicals
+			(0x4E00 <= codePoint && codePoint <= 0xA4C6) ||
+			// Hangul Jamo Extended-A
+			(0xA960 <= codePoint && codePoint <= 0xA97C) ||
+			// Hangul Syllables
+			(0xAC00 <= codePoint && codePoint <= 0xD7A3) ||
+			// CJK Compatibility Ideographs
+			(0xF900 <= codePoint && codePoint <= 0xFAFF) ||
+			// Vertical Forms
+			(0xFE10 <= codePoint && codePoint <= 0xFE19) ||
+			// CJK Compatibility Forms .. Small Form Variants
+			(0xFE30 <= codePoint && codePoint <= 0xFE6B) ||
+			// Halfwidth and Fullwidth Forms
+			(0xFF01 <= codePoint && codePoint <= 0xFF60) ||
+			(0xFFE0 <= codePoint && codePoint <= 0xFFE6) ||
+			// Kana Supplement
+			(0x1B000 <= codePoint && codePoint <= 0x1B001) ||
+			// Enclosed Ideographic Supplement
+			(0x1F200 <= codePoint && codePoint <= 0x1F251) ||
+			// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
+			(0x20000 <= codePoint && codePoint <= 0x3FFFD)
+		)
+	) {
+		return true;
+	}
+
+	return false;
+};
+
+module.exports = isFullwidthCodePoint;
+module.exports.default = isFullwidthCodePoint;
diff --git a/node_modules/is-fullwidth-code-point/license b/node_modules/is-fullwidth-code-point/license
new file mode 100644
index 0000000..e7af2f7
--- /dev/null
+++ b/node_modules/is-fullwidth-code-point/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/is-fullwidth-code-point/package.json b/node_modules/is-fullwidth-code-point/package.json
new file mode 100644
index 0000000..2137e88
--- /dev/null
+++ b/node_modules/is-fullwidth-code-point/package.json
@@ -0,0 +1,42 @@
+{
+	"name": "is-fullwidth-code-point",
+	"version": "3.0.0",
+	"description": "Check if the character represented by a given Unicode code point is fullwidth",
+	"license": "MIT",
+	"repository": "sindresorhus/is-fullwidth-code-point",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=8"
+	},
+	"scripts": {
+		"test": "xo && ava && tsd-check"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"fullwidth",
+		"full-width",
+		"full",
+		"width",
+		"unicode",
+		"character",
+		"string",
+		"codepoint",
+		"code",
+		"point",
+		"is",
+		"detect",
+		"check"
+	],
+	"devDependencies": {
+		"ava": "^1.3.1",
+		"tsd-check": "^0.5.0",
+		"xo": "^0.24.0"
+	}
+}
diff --git a/node_modules/is-fullwidth-code-point/readme.md b/node_modules/is-fullwidth-code-point/readme.md
new file mode 100644
index 0000000..4236bba
--- /dev/null
+++ b/node_modules/is-fullwidth-code-point/readme.md
@@ -0,0 +1,39 @@
+# is-fullwidth-code-point [![Build Status](https://travis-ci.org/sindresorhus/is-fullwidth-code-point.svg?branch=master)](https://travis-ci.org/sindresorhus/is-fullwidth-code-point)
+
+> Check if the character represented by a given [Unicode code point](https://en.wikipedia.org/wiki/Code_point) is [fullwidth](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms)
+
+
+## Install
+
+```
+$ npm install is-fullwidth-code-point
+```
+
+
+## Usage
+
+```js
+const isFullwidthCodePoint = require('is-fullwidth-code-point');
+
+isFullwidthCodePoint('谢'.codePointAt(0));
+//=> true
+
+isFullwidthCodePoint('a'.codePointAt(0));
+//=> false
+```
+
+
+## API
+
+### isFullwidthCodePoint(codePoint)
+
+#### codePoint
+
+Type: `number`
+
+The [code point](https://en.wikipedia.org/wiki/Code_point) of a character.
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/node_modules/is-lambda/.npmignore b/node_modules/is-lambda/.npmignore
new file mode 100644
index 0000000..3c3629e
--- /dev/null
+++ b/node_modules/is-lambda/.npmignore
@@ -0,0 +1 @@
+node_modules
diff --git a/node_modules/is-lambda/.travis.yml b/node_modules/is-lambda/.travis.yml
new file mode 100644
index 0000000..03dcca5
--- /dev/null
+++ b/node_modules/is-lambda/.travis.yml
@@ -0,0 +1,8 @@
+language: node_js
+node_js:
+- '7'
+- '6'
+- '5'
+- '4'
+- '0.12'
+- '0.10'
diff --git a/node_modules/is-lambda/LICENSE b/node_modules/is-lambda/LICENSE
new file mode 100644
index 0000000..4a59c94
--- /dev/null
+++ b/node_modules/is-lambda/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016-2017 Thomas Watson Steen
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/node_modules/is-lambda/README.md b/node_modules/is-lambda/README.md
new file mode 100644
index 0000000..31a8f56
--- /dev/null
+++ b/node_modules/is-lambda/README.md
@@ -0,0 +1,27 @@
+# is-lambda
+
+Returns `true` if the current environment is an [AWS
+Lambda](https://aws.amazon.com/lambda/) server.
+
+[![Build status](https://travis-ci.org/watson/is-lambda.svg?branch=master)](https://travis-ci.org/watson/is-lambda)
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](https://github.com/feross/standard)
+
+## Installation
+
+```
+npm install is-lambda
+```
+
+## Usage
+
+```js
+var isLambda = require('is-lambda')
+
+if (isLambda) {
+  console.log('The code is running on a AWS Lambda')
+}
+```
+
+## License
+
+MIT
diff --git a/node_modules/is-lambda/index.js b/node_modules/is-lambda/index.js
new file mode 100644
index 0000000..b245ab1
--- /dev/null
+++ b/node_modules/is-lambda/index.js
@@ -0,0 +1,6 @@
+'use strict'
+
+module.exports = !!(
+  (process.env.LAMBDA_TASK_ROOT && process.env.AWS_EXECUTION_ENV) ||
+  false
+)
diff --git a/node_modules/is-lambda/package.json b/node_modules/is-lambda/package.json
new file mode 100644
index 0000000..d855089
--- /dev/null
+++ b/node_modules/is-lambda/package.json
@@ -0,0 +1,35 @@
+{
+  "name": "is-lambda",
+  "version": "1.0.1",
+  "description": "Detect if your code is running on an AWS Lambda server",
+  "main": "index.js",
+  "dependencies": {},
+  "devDependencies": {
+    "clear-require": "^1.0.1",
+    "standard": "^10.0.2"
+  },
+  "scripts": {
+    "test": "standard && node test.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/watson/is-lambda.git"
+  },
+  "keywords": [
+    "aws",
+    "hosting",
+    "hosted",
+    "lambda",
+    "detect"
+  ],
+  "author": "Thomas Watson Steen <w@tson.dk> (https://twitter.com/wa7son)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/watson/is-lambda/issues"
+  },
+  "homepage": "https://github.com/watson/is-lambda",
+  "coordinates": [
+    37.3859955,
+    -122.0838831
+  ]
+}
diff --git a/node_modules/is-lambda/test.js b/node_modules/is-lambda/test.js
new file mode 100644
index 0000000..e8e7325
--- /dev/null
+++ b/node_modules/is-lambda/test.js
@@ -0,0 +1,16 @@
+'use strict'
+
+var assert = require('assert')
+var clearRequire = require('clear-require')
+
+process.env.AWS_EXECUTION_ENV = 'AWS_Lambda_nodejs6.10'
+process.env.LAMBDA_TASK_ROOT = '/var/task'
+
+var isCI = require('./')
+assert(isCI)
+
+delete process.env.AWS_EXECUTION_ENV
+
+clearRequire('./')
+isCI = require('./')
+assert(!isCI)
diff --git a/node_modules/isexe/.npmignore b/node_modules/isexe/.npmignore
new file mode 100644
index 0000000..c1cb757
--- /dev/null
+++ b/node_modules/isexe/.npmignore
@@ -0,0 +1,2 @@
+.nyc_output/
+coverage/
diff --git a/node_modules/isexe/LICENSE b/node_modules/isexe/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/isexe/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/isexe/README.md b/node_modules/isexe/README.md
new file mode 100644
index 0000000..35769e8
--- /dev/null
+++ b/node_modules/isexe/README.md
@@ -0,0 +1,51 @@
+# isexe
+
+Minimal module to check if a file is executable, and a normal file.
+
+Uses `fs.stat` and tests against the `PATHEXT` environment variable on
+Windows.
+
+## USAGE
+
+```javascript
+var isexe = require('isexe')
+isexe('some-file-name', function (err, isExe) {
+  if (err) {
+    console.error('probably file does not exist or something', err)
+  } else if (isExe) {
+    console.error('this thing can be run')
+  } else {
+    console.error('cannot be run')
+  }
+})
+
+// same thing but synchronous, throws errors
+var isExe = isexe.sync('some-file-name')
+
+// treat errors as just "not executable"
+isexe('maybe-missing-file', { ignoreErrors: true }, callback)
+var isExe = isexe.sync('maybe-missing-file', { ignoreErrors: true })
+```
+
+## API
+
+### `isexe(path, [options], [callback])`
+
+Check if the path is executable.  If no callback provided, and a
+global `Promise` object is available, then a Promise will be returned.
+
+Will raise whatever errors may be raised by `fs.stat`, unless
+`options.ignoreErrors` is set to true.
+
+### `isexe.sync(path, [options])`
+
+Same as `isexe` but returns the value and throws any errors raised.
+
+### Options
+
+* `ignoreErrors` Treat all errors as "no, this is not executable", but
+  don't raise them.
+* `uid` Number to use as the user id
+* `gid` Number to use as the group id
+* `pathExt` List of path extensions to use instead of `PATHEXT`
+  environment variable on Windows.
diff --git a/node_modules/isexe/index.js b/node_modules/isexe/index.js
new file mode 100644
index 0000000..553fb32
--- /dev/null
+++ b/node_modules/isexe/index.js
@@ -0,0 +1,57 @@
+var fs = require('fs')
+var core
+if (process.platform === 'win32' || global.TESTING_WINDOWS) {
+  core = require('./windows.js')
+} else {
+  core = require('./mode.js')
+}
+
+module.exports = isexe
+isexe.sync = sync
+
+function isexe (path, options, cb) {
+  if (typeof options === 'function') {
+    cb = options
+    options = {}
+  }
+
+  if (!cb) {
+    if (typeof Promise !== 'function') {
+      throw new TypeError('callback not provided')
+    }
+
+    return new Promise(function (resolve, reject) {
+      isexe(path, options || {}, function (er, is) {
+        if (er) {
+          reject(er)
+        } else {
+          resolve(is)
+        }
+      })
+    })
+  }
+
+  core(path, options || {}, function (er, is) {
+    // ignore EACCES because that just means we aren't allowed to run it
+    if (er) {
+      if (er.code === 'EACCES' || options && options.ignoreErrors) {
+        er = null
+        is = false
+      }
+    }
+    cb(er, is)
+  })
+}
+
+function sync (path, options) {
+  // my kingdom for a filtered catch
+  try {
+    return core.sync(path, options || {})
+  } catch (er) {
+    if (options && options.ignoreErrors || er.code === 'EACCES') {
+      return false
+    } else {
+      throw er
+    }
+  }
+}
diff --git a/node_modules/isexe/mode.js b/node_modules/isexe/mode.js
new file mode 100644
index 0000000..1995ea4
--- /dev/null
+++ b/node_modules/isexe/mode.js
@@ -0,0 +1,41 @@
+module.exports = isexe
+isexe.sync = sync
+
+var fs = require('fs')
+
+function isexe (path, options, cb) {
+  fs.stat(path, function (er, stat) {
+    cb(er, er ? false : checkStat(stat, options))
+  })
+}
+
+function sync (path, options) {
+  return checkStat(fs.statSync(path), options)
+}
+
+function checkStat (stat, options) {
+  return stat.isFile() && checkMode(stat, options)
+}
+
+function checkMode (stat, options) {
+  var mod = stat.mode
+  var uid = stat.uid
+  var gid = stat.gid
+
+  var myUid = options.uid !== undefined ?
+    options.uid : process.getuid && process.getuid()
+  var myGid = options.gid !== undefined ?
+    options.gid : process.getgid && process.getgid()
+
+  var u = parseInt('100', 8)
+  var g = parseInt('010', 8)
+  var o = parseInt('001', 8)
+  var ug = u | g
+
+  var ret = (mod & o) ||
+    (mod & g) && gid === myGid ||
+    (mod & u) && uid === myUid ||
+    (mod & ug) && myUid === 0
+
+  return ret
+}
diff --git a/node_modules/isexe/package.json b/node_modules/isexe/package.json
new file mode 100644
index 0000000..e452689
--- /dev/null
+++ b/node_modules/isexe/package.json
@@ -0,0 +1,31 @@
+{
+  "name": "isexe",
+  "version": "2.0.0",
+  "description": "Minimal module to check if a file is executable.",
+  "main": "index.js",
+  "directories": {
+    "test": "test"
+  },
+  "devDependencies": {
+    "mkdirp": "^0.5.1",
+    "rimraf": "^2.5.0",
+    "tap": "^10.3.0"
+  },
+  "scripts": {
+    "test": "tap test/*.js --100",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --all; git push origin --tags"
+  },
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "ISC",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/isaacs/isexe.git"
+  },
+  "keywords": [],
+  "bugs": {
+    "url": "https://github.com/isaacs/isexe/issues"
+  },
+  "homepage": "https://github.com/isaacs/isexe#readme"
+}
diff --git a/node_modules/isexe/test/basic.js b/node_modules/isexe/test/basic.js
new file mode 100644
index 0000000..d926df6
--- /dev/null
+++ b/node_modules/isexe/test/basic.js
@@ -0,0 +1,221 @@
+var t = require('tap')
+var fs = require('fs')
+var path = require('path')
+var fixture = path.resolve(__dirname, 'fixtures')
+var meow = fixture + '/meow.cat'
+var mine = fixture + '/mine.cat'
+var ours = fixture + '/ours.cat'
+var fail = fixture + '/fail.false'
+var noent = fixture + '/enoent.exe'
+var mkdirp = require('mkdirp')
+var rimraf = require('rimraf')
+
+var isWindows = process.platform === 'win32'
+var hasAccess = typeof fs.access === 'function'
+var winSkip = isWindows && 'windows'
+var accessSkip = !hasAccess && 'no fs.access function'
+var hasPromise = typeof Promise === 'function'
+var promiseSkip = !hasPromise && 'no global Promise'
+
+function reset () {
+  delete require.cache[require.resolve('../')]
+  return require('../')
+}
+
+t.test('setup fixtures', function (t) {
+  rimraf.sync(fixture)
+  mkdirp.sync(fixture)
+  fs.writeFileSync(meow, '#!/usr/bin/env cat\nmeow\n')
+  fs.chmodSync(meow, parseInt('0755', 8))
+  fs.writeFileSync(fail, '#!/usr/bin/env false\n')
+  fs.chmodSync(fail, parseInt('0644', 8))
+  fs.writeFileSync(mine, '#!/usr/bin/env cat\nmine\n')
+  fs.chmodSync(mine, parseInt('0744', 8))
+  fs.writeFileSync(ours, '#!/usr/bin/env cat\nours\n')
+  fs.chmodSync(ours, parseInt('0754', 8))
+  t.end()
+})
+
+t.test('promise', { skip: promiseSkip }, function (t) {
+  var isexe = reset()
+  t.test('meow async', function (t) {
+    isexe(meow).then(function (is) {
+      t.ok(is)
+      t.end()
+    })
+  })
+  t.test('fail async', function (t) {
+    isexe(fail).then(function (is) {
+      t.notOk(is)
+      t.end()
+    })
+  })
+  t.test('noent async', function (t) {
+    isexe(noent).catch(function (er) {
+      t.ok(er)
+      t.end()
+    })
+  })
+  t.test('noent ignore async', function (t) {
+    isexe(noent, { ignoreErrors: true }).then(function (is) {
+      t.notOk(is)
+      t.end()
+    })
+  })
+  t.end()
+})
+
+t.test('no promise', function (t) {
+  global.Promise = null
+  var isexe = reset()
+  t.throws('try to meow a promise', function () {
+    isexe(meow)
+  })
+  t.end()
+})
+
+t.test('access', { skip: accessSkip || winSkip }, function (t) {
+  runTest(t)
+})
+
+t.test('mode', { skip: winSkip }, function (t) {
+  delete fs.access
+  delete fs.accessSync
+  var isexe = reset()
+  t.ok(isexe.sync(ours, { uid: 0, gid: 0 }))
+  t.ok(isexe.sync(mine, { uid: 0, gid: 0 }))
+  runTest(t)
+})
+
+t.test('windows', function (t) {
+  global.TESTING_WINDOWS = true
+  var pathExt = '.EXE;.CAT;.CMD;.COM'
+  t.test('pathExt option', function (t) {
+    runTest(t, { pathExt: '.EXE;.CAT;.CMD;.COM' })
+  })
+  t.test('pathExt env', function (t) {
+    process.env.PATHEXT = pathExt
+    runTest(t)
+  })
+  t.test('no pathExt', function (t) {
+    // with a pathExt of '', any filename is fine.
+    // so the "fail" one would still pass.
+    runTest(t, { pathExt: '', skipFail: true })
+  })
+  t.test('pathext with empty entry', function (t) {
+    // with a pathExt of '', any filename is fine.
+    // so the "fail" one would still pass.
+    runTest(t, { pathExt: ';' + pathExt, skipFail: true })
+  })
+  t.end()
+})
+
+t.test('cleanup', function (t) {
+  rimraf.sync(fixture)
+  t.end()
+})
+
+function runTest (t, options) {
+  var isexe = reset()
+
+  var optionsIgnore = Object.create(options || {})
+  optionsIgnore.ignoreErrors = true
+
+  if (!options || !options.skipFail) {
+    t.notOk(isexe.sync(fail, options))
+  }
+  t.notOk(isexe.sync(noent, optionsIgnore))
+  if (!options) {
+    t.ok(isexe.sync(meow))
+  } else {
+    t.ok(isexe.sync(meow, options))
+  }
+
+  t.ok(isexe.sync(mine, options))
+  t.ok(isexe.sync(ours, options))
+  t.throws(function () {
+    isexe.sync(noent, options)
+  })
+
+  t.test('meow async', function (t) {
+    if (!options) {
+      isexe(meow, function (er, is) {
+        if (er) {
+          throw er
+        }
+        t.ok(is)
+        t.end()
+      })
+    } else {
+      isexe(meow, options, function (er, is) {
+        if (er) {
+          throw er
+        }
+        t.ok(is)
+        t.end()
+      })
+    }
+  })
+
+  t.test('mine async', function (t) {
+    isexe(mine, options, function (er, is) {
+      if (er) {
+        throw er
+      }
+      t.ok(is)
+      t.end()
+    })
+  })
+
+  t.test('ours async', function (t) {
+    isexe(ours, options, function (er, is) {
+      if (er) {
+        throw er
+      }
+      t.ok(is)
+      t.end()
+    })
+  })
+
+  if (!options || !options.skipFail) {
+    t.test('fail async', function (t) {
+      isexe(fail, options, function (er, is) {
+        if (er) {
+          throw er
+        }
+        t.notOk(is)
+        t.end()
+      })
+    })
+  }
+
+  t.test('noent async', function (t) {
+    isexe(noent, options, function (er, is) {
+      t.ok(er)
+      t.notOk(is)
+      t.end()
+    })
+  })
+
+  t.test('noent ignore async', function (t) {
+    isexe(noent, optionsIgnore, function (er, is) {
+      if (er) {
+        throw er
+      }
+      t.notOk(is)
+      t.end()
+    })
+  })
+
+  t.test('directory is not executable', function (t) {
+    isexe(__dirname, options, function (er, is) {
+      if (er) {
+        throw er
+      }
+      t.notOk(is)
+      t.end()
+    })
+  })
+
+  t.end()
+}
diff --git a/node_modules/isexe/windows.js b/node_modules/isexe/windows.js
new file mode 100644
index 0000000..3499673
--- /dev/null
+++ b/node_modules/isexe/windows.js
@@ -0,0 +1,42 @@
+module.exports = isexe
+isexe.sync = sync
+
+var fs = require('fs')
+
+function checkPathExt (path, options) {
+  var pathext = options.pathExt !== undefined ?
+    options.pathExt : process.env.PATHEXT
+
+  if (!pathext) {
+    return true
+  }
+
+  pathext = pathext.split(';')
+  if (pathext.indexOf('') !== -1) {
+    return true
+  }
+  for (var i = 0; i < pathext.length; i++) {
+    var p = pathext[i].toLowerCase()
+    if (p && path.substr(-p.length).toLowerCase() === p) {
+      return true
+    }
+  }
+  return false
+}
+
+function checkStat (stat, path, options) {
+  if (!stat.isSymbolicLink() && !stat.isFile()) {
+    return false
+  }
+  return checkPathExt(path, options)
+}
+
+function isexe (path, options, cb) {
+  fs.stat(path, function (er, stat) {
+    cb(er, er ? false : checkStat(stat, path, options))
+  })
+}
+
+function sync (path, options) {
+  return checkStat(fs.statSync(path), path, options)
+}
diff --git a/node_modules/lru-cache/LICENSE b/node_modules/lru-cache/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/lru-cache/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/lru-cache/README.md b/node_modules/lru-cache/README.md
new file mode 100644
index 0000000..435dfeb
--- /dev/null
+++ b/node_modules/lru-cache/README.md
@@ -0,0 +1,166 @@
+# lru cache
+
+A cache object that deletes the least-recently-used items.
+
+[![Build Status](https://travis-ci.org/isaacs/node-lru-cache.svg?branch=master)](https://travis-ci.org/isaacs/node-lru-cache) [![Coverage Status](https://coveralls.io/repos/isaacs/node-lru-cache/badge.svg?service=github)](https://coveralls.io/github/isaacs/node-lru-cache)
+
+## Installation:
+
+```javascript
+npm install lru-cache --save
+```
+
+## Usage:
+
+```javascript
+var LRU = require("lru-cache")
+  , options = { max: 500
+              , length: function (n, key) { return n * 2 + key.length }
+              , dispose: function (key, n) { n.close() }
+              , maxAge: 1000 * 60 * 60 }
+  , cache = new LRU(options)
+  , otherCache = new LRU(50) // sets just the max size
+
+cache.set("key", "value")
+cache.get("key") // "value"
+
+// non-string keys ARE fully supported
+// but note that it must be THE SAME object, not
+// just a JSON-equivalent object.
+var someObject = { a: 1 }
+cache.set(someObject, 'a value')
+// Object keys are not toString()-ed
+cache.set('[object Object]', 'a different value')
+assert.equal(cache.get(someObject), 'a value')
+// A similar object with same keys/values won't work,
+// because it's a different object identity
+assert.equal(cache.get({ a: 1 }), undefined)
+
+cache.reset()    // empty the cache
+```
+
+If you put more stuff in it, then items will fall out.
+
+If you try to put an oversized thing in it, then it'll fall out right
+away.
+
+## Options
+
+* `max` The maximum size of the cache, checked by applying the length
+  function to all values in the cache.  Not setting this is kind of
+  silly, since that's the whole purpose of this lib, but it defaults
+  to `Infinity`.  Setting it to a non-number or negative number will
+  throw a `TypeError`.  Setting it to 0 makes it be `Infinity`.
+* `maxAge` Maximum age in ms.  Items are not pro-actively pruned out
+  as they age, but if you try to get an item that is too old, it'll
+  drop it and return undefined instead of giving it to you.
+  Setting this to a negative value will make everything seem old!
+  Setting it to a non-number will throw a `TypeError`.
+* `length` Function that is used to calculate the length of stored
+  items.  If you're storing strings or buffers, then you probably want
+  to do something like `function(n, key){return n.length}`.  The default is
+  `function(){return 1}`, which is fine if you want to store `max`
+  like-sized things.  The item is passed as the first argument, and
+  the key is passed as the second argumnet.
+* `dispose` Function that is called on items when they are dropped
+  from the cache.  This can be handy if you want to close file
+  descriptors or do other cleanup tasks when items are no longer
+  accessible.  Called with `key, value`.  It's called *before*
+  actually removing the item from the internal cache, so if you want
+  to immediately put it back in, you'll have to do that in a
+  `nextTick` or `setTimeout` callback or it won't do anything.
+* `stale` By default, if you set a `maxAge`, it'll only actually pull
+  stale items out of the cache when you `get(key)`.  (That is, it's
+  not pre-emptively doing a `setTimeout` or anything.)  If you set
+  `stale:true`, it'll return the stale value before deleting it.  If
+  you don't set this, then it'll return `undefined` when you try to
+  get a stale entry, as if it had already been deleted.
+* `noDisposeOnSet` By default, if you set a `dispose()` method, then
+  it'll be called whenever a `set()` operation overwrites an existing
+  key.  If you set this option, `dispose()` will only be called when a
+  key falls out of the cache, not when it is overwritten.
+* `updateAgeOnGet` When using time-expiring entries with `maxAge`,
+  setting this to `true` will make each item's effective time update
+  to the current time whenever it is retrieved from cache, causing it
+  to not expire.  (It can still fall out of cache based on recency of
+  use, of course.)
+
+## API
+
+* `set(key, value, maxAge)`
+* `get(key) => value`
+
+    Both of these will update the "recently used"-ness of the key.
+    They do what you think. `maxAge` is optional and overrides the
+    cache `maxAge` option if provided.
+
+    If the key is not found, `get()` will return `undefined`.
+
+    The key and val can be any value.
+
+* `peek(key)`
+
+    Returns the key value (or `undefined` if not found) without
+    updating the "recently used"-ness of the key.
+
+    (If you find yourself using this a lot, you *might* be using the
+    wrong sort of data structure, but there are some use cases where
+    it's handy.)
+
+* `del(key)`
+
+    Deletes a key out of the cache.
+
+* `reset()`
+
+    Clear the cache entirely, throwing away all values.
+
+* `has(key)`
+
+    Check if a key is in the cache, without updating the recent-ness
+    or deleting it for being stale.
+
+* `forEach(function(value,key,cache), [thisp])`
+
+    Just like `Array.prototype.forEach`.  Iterates over all the keys
+    in the cache, in order of recent-ness.  (Ie, more recently used
+    items are iterated over first.)
+
+* `rforEach(function(value,key,cache), [thisp])`
+
+    The same as `cache.forEach(...)` but items are iterated over in
+    reverse order.  (ie, less recently used items are iterated over
+    first.)
+
+* `keys()`
+
+    Return an array of the keys in the cache.
+
+* `values()`
+
+    Return an array of the values in the cache.
+
+* `length`
+
+    Return total length of objects in cache taking into account
+    `length` options function.
+
+* `itemCount`
+
+    Return total quantity of objects currently in cache. Note, that
+    `stale` (see options) items are returned as part of this item
+    count.
+
+* `dump()`
+
+    Return an array of the cache entries ready for serialization and usage
+    with 'destinationCache.load(arr)`.
+
+* `load(cacheEntriesArray)`
+
+    Loads another cache entries array, obtained with `sourceCache.dump()`,
+    into the cache. The destination cache is reset before loading new entries
+
+* `prune()`
+
+    Manually iterates over the entire cache proactively pruning old entries
diff --git a/node_modules/lru-cache/index.js b/node_modules/lru-cache/index.js
new file mode 100644
index 0000000..573b6b8
--- /dev/null
+++ b/node_modules/lru-cache/index.js
@@ -0,0 +1,334 @@
+'use strict'
+
+// A linked list to keep track of recently-used-ness
+const Yallist = require('yallist')
+
+const MAX = Symbol('max')
+const LENGTH = Symbol('length')
+const LENGTH_CALCULATOR = Symbol('lengthCalculator')
+const ALLOW_STALE = Symbol('allowStale')
+const MAX_AGE = Symbol('maxAge')
+const DISPOSE = Symbol('dispose')
+const NO_DISPOSE_ON_SET = Symbol('noDisposeOnSet')
+const LRU_LIST = Symbol('lruList')
+const CACHE = Symbol('cache')
+const UPDATE_AGE_ON_GET = Symbol('updateAgeOnGet')
+
+const naiveLength = () => 1
+
+// lruList is a yallist where the head is the youngest
+// item, and the tail is the oldest.  the list contains the Hit
+// objects as the entries.
+// Each Hit object has a reference to its Yallist.Node.  This
+// never changes.
+//
+// cache is a Map (or PseudoMap) that matches the keys to
+// the Yallist.Node object.
+class LRUCache {
+  constructor (options) {
+    if (typeof options === 'number')
+      options = { max: options }
+
+    if (!options)
+      options = {}
+
+    if (options.max && (typeof options.max !== 'number' || options.max < 0))
+      throw new TypeError('max must be a non-negative number')
+    // Kind of weird to have a default max of Infinity, but oh well.
+    const max = this[MAX] = options.max || Infinity
+
+    const lc = options.length || naiveLength
+    this[LENGTH_CALCULATOR] = (typeof lc !== 'function') ? naiveLength : lc
+    this[ALLOW_STALE] = options.stale || false
+    if (options.maxAge && typeof options.maxAge !== 'number')
+      throw new TypeError('maxAge must be a number')
+    this[MAX_AGE] = options.maxAge || 0
+    this[DISPOSE] = options.dispose
+    this[NO_DISPOSE_ON_SET] = options.noDisposeOnSet || false
+    this[UPDATE_AGE_ON_GET] = options.updateAgeOnGet || false
+    this.reset()
+  }
+
+  // resize the cache when the max changes.
+  set max (mL) {
+    if (typeof mL !== 'number' || mL < 0)
+      throw new TypeError('max must be a non-negative number')
+
+    this[MAX] = mL || Infinity
+    trim(this)
+  }
+  get max () {
+    return this[MAX]
+  }
+
+  set allowStale (allowStale) {
+    this[ALLOW_STALE] = !!allowStale
+  }
+  get allowStale () {
+    return this[ALLOW_STALE]
+  }
+
+  set maxAge (mA) {
+    if (typeof mA !== 'number')
+      throw new TypeError('maxAge must be a non-negative number')
+
+    this[MAX_AGE] = mA
+    trim(this)
+  }
+  get maxAge () {
+    return this[MAX_AGE]
+  }
+
+  // resize the cache when the lengthCalculator changes.
+  set lengthCalculator (lC) {
+    if (typeof lC !== 'function')
+      lC = naiveLength
+
+    if (lC !== this[LENGTH_CALCULATOR]) {
+      this[LENGTH_CALCULATOR] = lC
+      this[LENGTH] = 0
+      this[LRU_LIST].forEach(hit => {
+        hit.length = this[LENGTH_CALCULATOR](hit.value, hit.key)
+        this[LENGTH] += hit.length
+      })
+    }
+    trim(this)
+  }
+  get lengthCalculator () { return this[LENGTH_CALCULATOR] }
+
+  get length () { return this[LENGTH] }
+  get itemCount () { return this[LRU_LIST].length }
+
+  rforEach (fn, thisp) {
+    thisp = thisp || this
+    for (let walker = this[LRU_LIST].tail; walker !== null;) {
+      const prev = walker.prev
+      forEachStep(this, fn, walker, thisp)
+      walker = prev
+    }
+  }
+
+  forEach (fn, thisp) {
+    thisp = thisp || this
+    for (let walker = this[LRU_LIST].head; walker !== null;) {
+      const next = walker.next
+      forEachStep(this, fn, walker, thisp)
+      walker = next
+    }
+  }
+
+  keys () {
+    return this[LRU_LIST].toArray().map(k => k.key)
+  }
+
+  values () {
+    return this[LRU_LIST].toArray().map(k => k.value)
+  }
+
+  reset () {
+    if (this[DISPOSE] &&
+        this[LRU_LIST] &&
+        this[LRU_LIST].length) {
+      this[LRU_LIST].forEach(hit => this[DISPOSE](hit.key, hit.value))
+    }
+
+    this[CACHE] = new Map() // hash of items by key
+    this[LRU_LIST] = new Yallist() // list of items in order of use recency
+    this[LENGTH] = 0 // length of items in the list
+  }
+
+  dump () {
+    return this[LRU_LIST].map(hit =>
+      isStale(this, hit) ? false : {
+        k: hit.key,
+        v: hit.value,
+        e: hit.now + (hit.maxAge || 0)
+      }).toArray().filter(h => h)
+  }
+
+  dumpLru () {
+    return this[LRU_LIST]
+  }
+
+  set (key, value, maxAge) {
+    maxAge = maxAge || this[MAX_AGE]
+
+    if (maxAge && typeof maxAge !== 'number')
+      throw new TypeError('maxAge must be a number')
+
+    const now = maxAge ? Date.now() : 0
+    const len = this[LENGTH_CALCULATOR](value, key)
+
+    if (this[CACHE].has(key)) {
+      if (len > this[MAX]) {
+        del(this, this[CACHE].get(key))
+        return false
+      }
+
+      const node = this[CACHE].get(key)
+      const item = node.value
+
+      // dispose of the old one before overwriting
+      // split out into 2 ifs for better coverage tracking
+      if (this[DISPOSE]) {
+        if (!this[NO_DISPOSE_ON_SET])
+          this[DISPOSE](key, item.value)
+      }
+
+      item.now = now
+      item.maxAge = maxAge
+      item.value = value
+      this[LENGTH] += len - item.length
+      item.length = len
+      this.get(key)
+      trim(this)
+      return true
+    }
+
+    const hit = new Entry(key, value, len, now, maxAge)
+
+    // oversized objects fall out of cache automatically.
+    if (hit.length > this[MAX]) {
+      if (this[DISPOSE])
+        this[DISPOSE](key, value)
+
+      return false
+    }
+
+    this[LENGTH] += hit.length
+    this[LRU_LIST].unshift(hit)
+    this[CACHE].set(key, this[LRU_LIST].head)
+    trim(this)
+    return true
+  }
+
+  has (key) {
+    if (!this[CACHE].has(key)) return false
+    const hit = this[CACHE].get(key).value
+    return !isStale(this, hit)
+  }
+
+  get (key) {
+    return get(this, key, true)
+  }
+
+  peek (key) {
+    return get(this, key, false)
+  }
+
+  pop () {
+    const node = this[LRU_LIST].tail
+    if (!node)
+      return null
+
+    del(this, node)
+    return node.value
+  }
+
+  del (key) {
+    del(this, this[CACHE].get(key))
+  }
+
+  load (arr) {
+    // reset the cache
+    this.reset()
+
+    const now = Date.now()
+    // A previous serialized cache has the most recent items first
+    for (let l = arr.length - 1; l >= 0; l--) {
+      const hit = arr[l]
+      const expiresAt = hit.e || 0
+      if (expiresAt === 0)
+        // the item was created without expiration in a non aged cache
+        this.set(hit.k, hit.v)
+      else {
+        const maxAge = expiresAt - now
+        // dont add already expired items
+        if (maxAge > 0) {
+          this.set(hit.k, hit.v, maxAge)
+        }
+      }
+    }
+  }
+
+  prune () {
+    this[CACHE].forEach((value, key) => get(this, key, false))
+  }
+}
+
+const get = (self, key, doUse) => {
+  const node = self[CACHE].get(key)
+  if (node) {
+    const hit = node.value
+    if (isStale(self, hit)) {
+      del(self, node)
+      if (!self[ALLOW_STALE])
+        return undefined
+    } else {
+      if (doUse) {
+        if (self[UPDATE_AGE_ON_GET])
+          node.value.now = Date.now()
+        self[LRU_LIST].unshiftNode(node)
+      }
+    }
+    return hit.value
+  }
+}
+
+const isStale = (self, hit) => {
+  if (!hit || (!hit.maxAge && !self[MAX_AGE]))
+    return false
+
+  const diff = Date.now() - hit.now
+  return hit.maxAge ? diff > hit.maxAge
+    : self[MAX_AGE] && (diff > self[MAX_AGE])
+}
+
+const trim = self => {
+  if (self[LENGTH] > self[MAX]) {
+    for (let walker = self[LRU_LIST].tail;
+      self[LENGTH] > self[MAX] && walker !== null;) {
+      // We know that we're about to delete this one, and also
+      // what the next least recently used key will be, so just
+      // go ahead and set it now.
+      const prev = walker.prev
+      del(self, walker)
+      walker = prev
+    }
+  }
+}
+
+const del = (self, node) => {
+  if (node) {
+    const hit = node.value
+    if (self[DISPOSE])
+      self[DISPOSE](hit.key, hit.value)
+
+    self[LENGTH] -= hit.length
+    self[CACHE].delete(hit.key)
+    self[LRU_LIST].removeNode(node)
+  }
+}
+
+class Entry {
+  constructor (key, value, length, now, maxAge) {
+    this.key = key
+    this.value = value
+    this.length = length
+    this.now = now
+    this.maxAge = maxAge || 0
+  }
+}
+
+const forEachStep = (self, fn, node, thisp) => {
+  let hit = node.value
+  if (isStale(self, hit)) {
+    del(self, node)
+    if (!self[ALLOW_STALE])
+      hit = undefined
+  }
+  if (hit)
+    fn.call(thisp, hit.value, hit.key, self)
+}
+
+module.exports = LRUCache
diff --git a/node_modules/lru-cache/package.json b/node_modules/lru-cache/package.json
new file mode 100644
index 0000000..43b7502
--- /dev/null
+++ b/node_modules/lru-cache/package.json
@@ -0,0 +1,34 @@
+{
+  "name": "lru-cache",
+  "description": "A cache object that deletes the least-recently-used items.",
+  "version": "6.0.0",
+  "author": "Isaac Z. Schlueter <i@izs.me>",
+  "keywords": [
+    "mru",
+    "lru",
+    "cache"
+  ],
+  "scripts": {
+    "test": "tap",
+    "snap": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags"
+  },
+  "main": "index.js",
+  "repository": "git://github.com/isaacs/node-lru-cache.git",
+  "devDependencies": {
+    "benchmark": "^2.1.4",
+    "tap": "^14.10.7"
+  },
+  "license": "ISC",
+  "dependencies": {
+    "yallist": "^4.0.0"
+  },
+  "files": [
+    "index.js"
+  ],
+  "engines": {
+    "node": ">=10"
+  }
+}
diff --git a/node_modules/make-dir/index.d.ts b/node_modules/make-dir/index.d.ts
new file mode 100644
index 0000000..3a78251
--- /dev/null
+++ b/node_modules/make-dir/index.d.ts
@@ -0,0 +1,66 @@
+/// <reference types="node"/>
+import * as fs from 'fs';
+
+declare namespace makeDir {
+	interface Options {
+		/**
+		Directory [permissions](https://x-team.com/blog/file-system-permissions-umask-node-js/).
+
+		@default 0o777
+		*/
+		readonly mode?: number;
+
+		/**
+		Use a custom `fs` implementation. For example [`graceful-fs`](https://github.com/isaacs/node-graceful-fs).
+
+		Using a custom `fs` implementation will block the use of the native `recursive` option if `fs.mkdir` or `fs.mkdirSync` is not the native function.
+
+		@default require('fs')
+		*/
+		readonly fs?: typeof fs;
+	}
+}
+
+declare const makeDir: {
+	/**
+	Make a directory and its parents if needed - Think `mkdir -p`.
+
+	@param path - Directory to create.
+	@returns The path to the created directory.
+
+	@example
+	```
+	import makeDir = require('make-dir');
+
+	(async () => {
+		const path = await makeDir('unicorn/rainbow/cake');
+
+		console.log(path);
+		//=> '/Users/sindresorhus/fun/unicorn/rainbow/cake'
+
+		// Multiple directories:
+		const paths = await Promise.all([
+			makeDir('unicorn/rainbow'),
+			makeDir('foo/bar')
+		]);
+
+		console.log(paths);
+		// [
+		// 	'/Users/sindresorhus/fun/unicorn/rainbow',
+		// 	'/Users/sindresorhus/fun/foo/bar'
+		// ]
+	})();
+	```
+	*/
+	(path: string, options?: makeDir.Options): Promise<string>;
+
+	/**
+	Synchronously make a directory and its parents if needed - Think `mkdir -p`.
+
+	@param path - Directory to create.
+	@returns The path to the created directory.
+	*/
+	sync(path: string, options?: makeDir.Options): string;
+};
+
+export = makeDir;
diff --git a/node_modules/make-dir/index.js b/node_modules/make-dir/index.js
new file mode 100644
index 0000000..75889d8
--- /dev/null
+++ b/node_modules/make-dir/index.js
@@ -0,0 +1,156 @@
+'use strict';
+const fs = require('fs');
+const path = require('path');
+const {promisify} = require('util');
+const semver = require('semver');
+
+const useNativeRecursiveOption = semver.satisfies(process.version, '>=10.12.0');
+
+// https://github.com/nodejs/node/issues/8987
+// https://github.com/libuv/libuv/pull/1088
+const checkPath = pth => {
+	if (process.platform === 'win32') {
+		const pathHasInvalidWinCharacters = /[<>:"|?*]/.test(pth.replace(path.parse(pth).root, ''));
+
+		if (pathHasInvalidWinCharacters) {
+			const error = new Error(`Path contains invalid characters: ${pth}`);
+			error.code = 'EINVAL';
+			throw error;
+		}
+	}
+};
+
+const processOptions = options => {
+	// https://github.com/sindresorhus/make-dir/issues/18
+	const defaults = {
+		mode: 0o777,
+		fs
+	};
+
+	return {
+		...defaults,
+		...options
+	};
+};
+
+const permissionError = pth => {
+	// This replicates the exception of `fs.mkdir` with native the
+	// `recusive` option when run on an invalid drive under Windows.
+	const error = new Error(`operation not permitted, mkdir '${pth}'`);
+	error.code = 'EPERM';
+	error.errno = -4048;
+	error.path = pth;
+	error.syscall = 'mkdir';
+	return error;
+};
+
+const makeDir = async (input, options) => {
+	checkPath(input);
+	options = processOptions(options);
+
+	const mkdir = promisify(options.fs.mkdir);
+	const stat = promisify(options.fs.stat);
+
+	if (useNativeRecursiveOption && options.fs.mkdir === fs.mkdir) {
+		const pth = path.resolve(input);
+
+		await mkdir(pth, {
+			mode: options.mode,
+			recursive: true
+		});
+
+		return pth;
+	}
+
+	const make = async pth => {
+		try {
+			await mkdir(pth, options.mode);
+
+			return pth;
+		} catch (error) {
+			if (error.code === 'EPERM') {
+				throw error;
+			}
+
+			if (error.code === 'ENOENT') {
+				if (path.dirname(pth) === pth) {
+					throw permissionError(pth);
+				}
+
+				if (error.message.includes('null bytes')) {
+					throw error;
+				}
+
+				await make(path.dirname(pth));
+
+				return make(pth);
+			}
+
+			try {
+				const stats = await stat(pth);
+				if (!stats.isDirectory()) {
+					throw new Error('The path is not a directory');
+				}
+			} catch (_) {
+				throw error;
+			}
+
+			return pth;
+		}
+	};
+
+	return make(path.resolve(input));
+};
+
+module.exports = makeDir;
+
+module.exports.sync = (input, options) => {
+	checkPath(input);
+	options = processOptions(options);
+
+	if (useNativeRecursiveOption && options.fs.mkdirSync === fs.mkdirSync) {
+		const pth = path.resolve(input);
+
+		fs.mkdirSync(pth, {
+			mode: options.mode,
+			recursive: true
+		});
+
+		return pth;
+	}
+
+	const make = pth => {
+		try {
+			options.fs.mkdirSync(pth, options.mode);
+		} catch (error) {
+			if (error.code === 'EPERM') {
+				throw error;
+			}
+
+			if (error.code === 'ENOENT') {
+				if (path.dirname(pth) === pth) {
+					throw permissionError(pth);
+				}
+
+				if (error.message.includes('null bytes')) {
+					throw error;
+				}
+
+				make(path.dirname(pth));
+				return make(pth);
+			}
+
+			try {
+				if (!options.fs.statSync(pth).isDirectory()) {
+					throw new Error('The path is not a directory');
+				}
+			} catch (_) {
+				throw error;
+			}
+		}
+
+		return pth;
+	};
+
+	return make(path.resolve(input));
+};
diff --git a/node_modules/make-dir/license b/node_modules/make-dir/license
new file mode 100644
index 0000000..e7af2f7
--- /dev/null
+++ b/node_modules/make-dir/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/make-dir/node_modules/.bin/semver b/node_modules/make-dir/node_modules/.bin/semver
new file mode 100644
index 0000000..77443e7
--- /dev/null
+++ b/node_modules/make-dir/node_modules/.bin/semver
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../semver/bin/semver.js" "$@"
+else 
+  exec node  "$basedir/../semver/bin/semver.js" "$@"
+fi
diff --git a/node_modules/make-dir/node_modules/.bin/semver.cmd b/node_modules/make-dir/node_modules/.bin/semver.cmd
new file mode 100644
index 0000000..9913fa9
--- /dev/null
+++ b/node_modules/make-dir/node_modules/.bin/semver.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\semver\bin\semver.js" %*
diff --git a/node_modules/make-dir/node_modules/.bin/semver.ps1 b/node_modules/make-dir/node_modules/.bin/semver.ps1
new file mode 100644
index 0000000..314717a
--- /dev/null
+++ b/node_modules/make-dir/node_modules/.bin/semver.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../semver/bin/semver.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../semver/bin/semver.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../semver/bin/semver.js" $args
+  } else {
+    & "node$exe"  "$basedir/../semver/bin/semver.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/node_modules/make-dir/node_modules/semver/LICENSE b/node_modules/make-dir/node_modules/semver/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/make-dir/node_modules/semver/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/make-dir/node_modules/semver/README.md b/node_modules/make-dir/node_modules/semver/README.md
new file mode 100644
index 0000000..2293a14
--- /dev/null
+++ b/node_modules/make-dir/node_modules/semver/README.md
@@ -0,0 +1,443 @@
+semver(1) -- The semantic versioner for npm
+===========================================
+
+## Install
+
+```bash
+npm install semver
+````
+
+## Usage
+
+As a node module:
+
+```js
+const semver = require('semver')
+
+semver.valid('1.2.3') // '1.2.3'
+semver.valid('a.b.c') // null
+semver.clean('  =v1.2.3   ') // '1.2.3'
+semver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true
+semver.gt('1.2.3', '9.8.7') // false
+semver.lt('1.2.3', '9.8.7') // true
+semver.minVersion('>=1.0.0') // '1.0.0'
+semver.valid(semver.coerce('v2')) // '2.0.0'
+semver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7'
+```
+
+As a command-line utility:
+
+```
+$ semver -h
+
+A JavaScript implementation of the https://semver.org/ specification
+Copyright Isaac Z. Schlueter
+
+Usage: semver [options] <version> [<version> [...]]
+Prints valid versions sorted by SemVer precedence
+
+Options:
+-r --range <range>
+        Print versions that match the specified range.
+
+-i --increment [<level>]
+        Increment a version by the specified level.  Level can
+        be one of: major, minor, patch, premajor, preminor,
+        prepatch, or prerelease.  Default level is 'patch'.
+        Only one version may be specified.
+
+--preid <identifier>
+        Identifier to be used to prefix premajor, preminor,
+        prepatch or prerelease version increments.
+
+-l --loose
+        Interpret versions and ranges loosely
+
+-p --include-prerelease
+        Always include prerelease versions in range matching
+
+-c --coerce
+        Coerce a string into SemVer if possible
+        (does not imply --loose)
+
+--rtl
+        Coerce version strings right to left
+
+--ltr
+        Coerce version strings left to right (default)
+
+Program exits successfully if any valid version satisfies
+all supplied ranges, and prints all satisfying versions.
+
+If no satisfying versions are found, then exits failure.
+
+Versions are printed in ascending order, so supplying
+multiple versions to the utility will just sort them.
+```
+
+## Versions
+
+A "version" is described by the `v2.0.0` specification found at
+<https://semver.org/>.
+
+A leading `"="` or `"v"` character is stripped off and ignored.
+
+## Ranges
+
+A `version range` is a set of `comparators` which specify versions
+that satisfy the range.
+
+A `comparator` is composed of an `operator` and a `version`.  The set
+of primitive `operators` is:
+
+* `<` Less than
+* `<=` Less than or equal to
+* `>` Greater than
+* `>=` Greater than or equal to
+* `=` Equal.  If no operator is specified, then equality is assumed,
+  so this operator is optional, but MAY be included.
+
+For example, the comparator `>=1.2.7` would match the versions
+`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6`
+or `1.1.0`.
+
+Comparators can be joined by whitespace to form a `comparator set`,
+which is satisfied by the **intersection** of all of the comparators
+it includes.
+
+A range is composed of one or more comparator sets, joined by `||`.  A
+version matches a range if and only if every comparator in at least
+one of the `||`-separated comparator sets is satisfied by the version.
+
+For example, the range `>=1.2.7 <1.3.0` would match the versions
+`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`,
+or `1.1.0`.
+
+The range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`,
+`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`.
+
+### Prerelease Tags
+
+If a version has a prerelease tag (for example, `1.2.3-alpha.3`) then
+it will only be allowed to satisfy comparator sets if at least one
+comparator with the same `[major, minor, patch]` tuple also has a
+prerelease tag.
+
+For example, the range `>1.2.3-alpha.3` would be allowed to match the
+version `1.2.3-alpha.7`, but it would *not* be satisfied by
+`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically "greater
+than" `1.2.3-alpha.3` according to the SemVer sort rules.  The version
+range only accepts prerelease tags on the `1.2.3` version.  The
+version `3.4.5` *would* satisfy the range, because it does not have a
+prerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`.
+
+The purpose for this behavior is twofold.  First, prerelease versions
+frequently are updated very quickly, and contain many breaking changes
+that are (by the author's design) not yet fit for public consumption.
+Therefore, by default, they are excluded from range matching
+semantics.
+
+Second, a user who has opted into using a prerelease version has
+clearly indicated the intent to use *that specific* set of
+alpha/beta/rc versions.  By including a prerelease tag in the range,
+the user is indicating that they are aware of the risk.  However, it
+is still not appropriate to assume that they have opted into taking a
+similar risk on the *next* set of prerelease versions.
+
+Note that this behavior can be suppressed (treating all prerelease
+versions as if they were normal versions, for the purpose of range
+matching) by setting the `includePrerelease` flag on the options
+object to any
+[functions](https://github.com/npm/node-semver#functions) that do
+range matching.
+
+#### Prerelease Identifiers
+
+The method `.inc` takes an additional `identifier` string argument that
+will append the value of the string as a prerelease identifier:
+
+```javascript
+semver.inc('1.2.3', 'prerelease', 'beta')
+// '1.2.4-beta.0'
+```
+
+command-line example:
+
+```bash
+$ semver 1.2.3 -i prerelease --preid beta
+1.2.4-beta.0
+```
+
+Which then can be used to increment further:
+
+```bash
+$ semver 1.2.4-beta.0 -i prerelease
+1.2.4-beta.1
+```
+
+### Advanced Range Syntax
+
+Advanced range syntax desugars to primitive comparators in
+deterministic ways.
+
+Advanced ranges may be combined in the same way as primitive
+comparators using white space or `||`.
+
+#### Hyphen Ranges `X.Y.Z - A.B.C`
+
+Specifies an inclusive set.
+
+* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4`
+
+If a partial version is provided as the first version in the inclusive
+range, then the missing pieces are replaced with zeroes.
+
+* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4`
+
+If a partial version is provided as the second version in the
+inclusive range, then all versions that start with the supplied parts
+of the tuple are accepted, but nothing that would be greater than the
+provided tuple parts.
+
+* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0`
+* `1.2.3 - 2` := `>=1.2.3 <3.0.0`
+
+#### X-Ranges `1.2.x` `1.X` `1.2.*` `*`
+
+Any of `X`, `x`, or `*` may be used to "stand in" for one of the
+numeric values in the `[major, minor, patch]` tuple.
+
+* `*` := `>=0.0.0` (Any version satisfies)
+* `1.x` := `>=1.0.0 <2.0.0` (Matching major version)
+* `1.2.x` := `>=1.2.0 <1.3.0` (Matching major and minor versions)
+
+A partial version range is treated as an X-Range, so the special
+character is in fact optional.
+
+* `""` (empty string) := `*` := `>=0.0.0`
+* `1` := `1.x.x` := `>=1.0.0 <2.0.0`
+* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0`
+
+#### Tilde Ranges `~1.2.3` `~1.2` `~1`
+
+Allows patch-level changes if a minor version is specified on the
+comparator.  Allows minor-level changes if not.
+
+* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0`
+* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0` (Same as `1.2.x`)
+* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0` (Same as `1.x`)
+* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0`
+* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0` (Same as `0.2.x`)
+* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0` (Same as `0.x`)
+* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0` Note that prereleases in
+  the `1.2.3` version will be allowed, if they are greater than or
+  equal to `beta.2`.  So, `1.2.3-beta.4` would be allowed, but
+  `1.2.4-beta.2` would not, because it is a prerelease of a
+  different `[major, minor, patch]` tuple.
+
+#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4`
+
+Allows changes that do not modify the left-most non-zero element in the
+`[major, minor, patch]` tuple.  In other words, this allows patch and
+minor updates for versions `1.0.0` and above, patch updates for
+versions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`.
+
+Many authors treat a `0.x` version as if the `x` were the major
+"breaking-change" indicator.
+
+Caret ranges are ideal when an author may make breaking changes
+between `0.2.4` and `0.3.0` releases, which is a common practice.
+However, it presumes that there will *not* be breaking changes between
+`0.2.4` and `0.2.5`.  It allows for changes that are presumed to be
+additive (but non-breaking), according to commonly observed practices.
+
+* `^1.2.3` := `>=1.2.3 <2.0.0`
+* `^0.2.3` := `>=0.2.3 <0.3.0`
+* `^0.0.3` := `>=0.0.3 <0.0.4`
+* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0` Note that prereleases in
+  the `1.2.3` version will be allowed, if they are greater than or
+  equal to `beta.2`.  So, `1.2.3-beta.4` would be allowed, but
+  `1.2.4-beta.2` would not, because it is a prerelease of a
+  different `[major, minor, patch]` tuple.
+* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4`  Note that prereleases in the
+  `0.0.3` version *only* will be allowed, if they are greater than or
+  equal to `beta`.  So, `0.0.3-pr.2` would be allowed.
+
+When parsing caret ranges, a missing `patch` value desugars to the
+number `0`, but will allow flexibility within that value, even if the
+major and minor versions are both `0`.
+
+* `^1.2.x` := `>=1.2.0 <2.0.0`
+* `^0.0.x` := `>=0.0.0 <0.1.0`
+* `^0.0` := `>=0.0.0 <0.1.0`
+
+A missing `minor` and `patch` values will desugar to zero, but also
+allow flexibility within those values, even if the major version is
+zero.
+
+* `^1.x` := `>=1.0.0 <2.0.0`
+* `^0.x` := `>=0.0.0 <1.0.0`
+
+### Range Grammar
+
+Putting all this together, here is a Backus-Naur grammar for ranges,
+for the benefit of parser authors:
+
+```bnf
+range-set  ::= range ( logical-or range ) *
+logical-or ::= ( ' ' ) * '||' ( ' ' ) *
+range      ::= hyphen | simple ( ' ' simple ) * | ''
+hyphen     ::= partial ' - ' partial
+simple     ::= primitive | partial | tilde | caret
+primitive  ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
+partial    ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
+xr         ::= 'x' | 'X' | '*' | nr
+nr         ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *
+tilde      ::= '~' partial
+caret      ::= '^' partial
+qualifier  ::= ( '-' pre )? ( '+' build )?
+pre        ::= parts
+build      ::= parts
+parts      ::= part ( '.' part ) *
+part       ::= nr | [-0-9A-Za-z]+
+```
+
+## Functions
+
+All methods and classes take a final `options` object argument.  All
+options in this object are `false` by default.  The options supported
+are:
+
+- `loose`  Be more forgiving about not-quite-valid semver strings.
+  (Any resulting output will always be 100% strict compliant, of
+  course.)  For backwards compatibility reasons, if the `options`
+  argument is a boolean value instead of an object, it is interpreted
+  to be the `loose` param.
+- `includePrerelease`  Set to suppress the [default
+  behavior](https://github.com/npm/node-semver#prerelease-tags) of
+  excluding prerelease tagged versions from ranges unless they are
+  explicitly opted into.
+
+Strict-mode Comparators and Ranges will be strict about the SemVer
+strings that they parse.
+
+* `valid(v)`: Return the parsed version, or null if it's not valid.
+* `inc(v, release)`: Return the version incremented by the release
+  type (`major`,   `premajor`, `minor`, `preminor`, `patch`,
+  `prepatch`, or `prerelease`), or null if it's not valid
+  * `premajor` in one call will bump the version up to the next major
+    version and down to a prerelease of that major version.
+    `preminor`, and `prepatch` work the same way.
+  * If called from a non-prerelease version, the `prerelease` will work the
+    same as `prepatch`. It increments the patch version, then makes a
+    prerelease. If the input version is already a prerelease it simply
+    increments it.
+* `prerelease(v)`: Returns an array of prerelease components, or null
+  if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`
+* `major(v)`: Return the major version number.
+* `minor(v)`: Return the minor version number.
+* `patch(v)`: Return the patch version number.
+* `intersects(r1, r2, loose)`: Return true if the two supplied ranges
+  or comparators intersect.
+* `parse(v)`: Attempt to parse a string as a semantic version, returning either
+  a `SemVer` object or `null`.
+
+### Comparison
+
+* `gt(v1, v2)`: `v1 > v2`
+* `gte(v1, v2)`: `v1 >= v2`
+* `lt(v1, v2)`: `v1 < v2`
+* `lte(v1, v2)`: `v1 <= v2`
+* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent,
+  even if they're not the exact same string.  You already know how to
+  compare strings.
+* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`.
+* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call
+  the corresponding function above.  `"==="` and `"!=="` do simple
+  string comparison, but are included for completeness.  Throws if an
+  invalid comparison string is provided.
+* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if
+  `v2` is greater.  Sorts in ascending order if passed to `Array.sort()`.
+* `rcompare(v1, v2)`: The reverse of compare.  Sorts an array of versions
+  in descending order when passed to `Array.sort()`.
+* `compareBuild(v1, v2)`: The same as `compare` but considers `build` when two versions
+  are equal.  Sorts in ascending order if passed to `Array.sort()`.
+  `v2` is greater.  Sorts in ascending order if passed to `Array.sort()`.
+* `diff(v1, v2)`: Returns difference between two versions by the release type
+  (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),
+  or null if the versions are the same.
+
+### Comparators
+
+* `intersects(comparator)`: Return true if the comparators intersect
+
+### Ranges
+
+* `validRange(range)`: Return the valid range or null if it's not valid
+* `satisfies(version, range)`: Return true if the version satisfies the
+  range.
+* `maxSatisfying(versions, range)`: Return the highest version in the list
+  that satisfies the range, or `null` if none of them do.
+* `minSatisfying(versions, range)`: Return the lowest version in the list
+  that satisfies the range, or `null` if none of them do.
+* `minVersion(range)`: Return the lowest version that can possibly match
+  the given range.
+* `gtr(version, range)`: Return `true` if version is greater than all the
+  versions possible in the range.
+* `ltr(version, range)`: Return `true` if version is less than all the
+  versions possible in the range.
+* `outside(version, range, hilo)`: Return true if the version is outside
+  the bounds of the range in either the high or low direction.  The
+  `hilo` argument must be either the string `'>'` or `'<'`.  (This is
+  the function called by `gtr` and `ltr`.)
+* `intersects(range)`: Return true if any of the ranges comparators intersect
+
+Note that, since ranges may be non-contiguous, a version might not be
+greater than a range, less than a range, *or* satisfy a range!  For
+example, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9`
+until `2.0.0`, so the version `1.2.10` would not be greater than the
+range (because `2.0.1` satisfies, which is higher), nor less than the
+range (since `1.2.8` satisfies, which is lower), and it also does not
+satisfy the range.
+
+If you want to know if a version satisfies or does not satisfy a
+range, use the `satisfies(version, range)` function.
+
+### Coercion
+
+* `coerce(version, options)`: Coerces a string to semver if possible
+
+This aims to provide a very forgiving translation of a non-semver string to
+semver. It looks for the first digit in a string, and consumes all
+remaining characters which satisfy at least a partial semver (e.g., `1`,
+`1.2`, `1.2.3`) up to the max permitted length (256 characters).  Longer
+versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`).  All
+surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes
+`3.4.0`).  Only text which lacks digits will fail coercion (`version one`
+is not valid).  The maximum  length for any semver component considered for
+coercion is 16 characters; longer components will be ignored
+(`10000000000000000.4.7.4` becomes `4.7.4`).  The maximum value for any
+semver component is `Integer.MAX_SAFE_INTEGER || (2**53 - 1)`; higher value
+components are invalid (`9999999999999999.4.7.4` is likely invalid).
+
+If the `options.rtl` flag is set, then `coerce` will return the right-most
+coercible tuple that does not share an ending index with a longer coercible
+tuple.  For example, `1.2.3.4` will return `2.3.4` in rtl mode, not
+`4.0.0`.  `1.2.3/4` will return `4.0.0`, because the `4` is not a part of
+any other overlapping SemVer tuple.
+
+### Clean
+
+* `clean(version)`: Clean a string to be a valid semver if possible
+
+This will return a cleaned and trimmed semver version. If the provided version is not valid a null will be returned. This does not work for ranges. 
+
+ex.
+* `s.clean(' = v 2.1.5foo')`: `null`
+* `s.clean(' = v 2.1.5foo', { loose: true })`: `'2.1.5-foo'`
+* `s.clean(' = v 2.1.5-foo')`: `null`
+* `s.clean(' = v 2.1.5-foo', { loose: true })`: `'2.1.5-foo'`
+* `s.clean('=v2.1.5')`: `'2.1.5'`
+* `s.clean('  =v2.1.5')`: `2.1.5`
+* `s.clean('      2.1.5   ')`: `'2.1.5'`
+* `s.clean('~1.0.0')`: `null`
diff --git a/node_modules/make-dir/node_modules/semver/bin/semver.js b/node_modules/make-dir/node_modules/semver/bin/semver.js
new file mode 100644
index 0000000..666034a
--- /dev/null
+++ b/node_modules/make-dir/node_modules/semver/bin/semver.js
@@ -0,0 +1,174 @@
+#!/usr/bin/env node
+// Standalone semver comparison program.
+// Exits successfully and prints matching version(s) if
+// any supplied version is valid and passes all tests.
+
+var argv = process.argv.slice(2)
+
+var versions = []
+
+var range = []
+
+var inc = null
+
+var version = require('../package.json').version
+
+var loose = false
+
+var includePrerelease = false
+
+var coerce = false
+
+var rtl = false
+
+var identifier
+
+var semver = require('../semver')
+
+var reverse = false
+
+var options = {}
+
+main()
+
+function main () {
+  if (!argv.length) return help()
+  while (argv.length) {
+    var a = argv.shift()
+    var indexOfEqualSign = a.indexOf('=')
+    if (indexOfEqualSign !== -1) {
+      a = a.slice(0, indexOfEqualSign)
+      argv.unshift(a.slice(indexOfEqualSign + 1))
+    }
+    switch (a) {
+      case '-rv': case '-rev': case '--rev': case '--reverse':
+        reverse = true
+        break
+      case '-l': case '--loose':
+        loose = true
+        break
+      case '-p': case '--include-prerelease':
+        includePrerelease = true
+        break
+      case '-v': case '--version':
+        versions.push(argv.shift())
+        break
+      case '-i': case '--inc': case '--increment':
+        switch (argv[0]) {
+          case 'major': case 'minor': case 'patch': case 'prerelease':
+          case 'premajor': case 'preminor': case 'prepatch':
+            inc = argv.shift()
+            break
+          default:
+            inc = 'patch'
+            break
+        }
+        break
+      case '--preid':
+        identifier = argv.shift()
+        break
+      case '-r': case '--range':
+        range.push(argv.shift())
+        break
+      case '-c': case '--coerce':
+        coerce = true
+        break
+      case '--rtl':
+        rtl = true
+        break
+      case '--ltr':
+        rtl = false
+        break
+      case '-h': case '--help': case '-?':
+        return help()
+      default:
+        versions.push(a)
+        break
+    }
+  }
+
+  var options = { loose: loose, includePrerelease: includePrerelease, rtl: rtl }
+
+  versions = versions.map(function (v) {
+    return coerce ? (semver.coerce(v, options) || { version: v }).version : v
+  }).filter(function (v) {
+    return semver.valid(v)
+  })
+  if (!versions.length) return fail()
+  if (inc && (versions.length !== 1 || range.length)) { return failInc() }
+
+  for (var i = 0, l = range.length; i < l; i++) {
+    versions = versions.filter(function (v) {
+      return semver.satisfies(v, range[i], options)
+    })
+    if (!versions.length) return fail()
+  }
+  return success(versions)
+}
+
+function failInc () {
+  console.error('--inc can only be used on a single version with no range')
+  fail()
+}
+
+function fail () { process.exit(1) }
+
+function success () {
+  var compare = reverse ? 'rcompare' : 'compare'
+  versions.sort(function (a, b) {
+    return semver[compare](a, b, options)
+  }).map(function (v) {
+    return semver.clean(v, options)
+  }).map(function (v) {
+    return inc ? semver.inc(v, inc, options, identifier) : v
+  }).forEach(function (v, i, _) { console.log(v) })
+}
+
+function help () {
+  console.log(['SemVer ' + version,
+    '',
+    'A JavaScript implementation of the https://semver.org/ specification',
+    'Copyright Isaac Z. Schlueter',
+    '',
+    'Usage: semver [options] <version> [<version> [...]]',
+    'Prints valid versions sorted by SemVer precedence',
+    '',
+    'Options:',
+    '-r --range <range>',
+    '        Print versions that match the specified range.',
+    '',
+    '-i --increment [<level>]',
+    '        Increment a version by the specified level.  Level can',
+    '        be one of: major, minor, patch, premajor, preminor,',
+    "        prepatch, or prerelease.  Default level is 'patch'.",
+    '        Only one version may be specified.',
+    '',
+    '--preid <identifier>',
+    '        Identifier to be used to prefix premajor, preminor,',
+    '        prepatch or prerelease version increments.',
+    '',
+    '-l --loose',
+    '        Interpret versions and ranges loosely',
+    '',
+    '-p --include-prerelease',
+    '        Always include prerelease versions in range matching',
+    '',
+    '-c --coerce',
+    '        Coerce a string into SemVer if possible',
+    '        (does not imply --loose)',
+    '',
+    '--rtl',
+    '        Coerce version strings right to left',
+    '',
+    '--ltr',
+    '        Coerce version strings left to right (default)',
+    '',
+    'Program exits successfully if any valid version satisfies',
+    'all supplied ranges, and prints all satisfying versions.',
+    '',
+    'If no satisfying versions are found, then exits failure.',
+    '',
+    'Versions are printed in ascending order, so supplying',
+    'multiple versions to the utility will just sort them.'
+  ].join('\n'))
+}
diff --git a/node_modules/make-dir/node_modules/semver/package.json b/node_modules/make-dir/node_modules/semver/package.json
new file mode 100644
index 0000000..6b970a6
--- /dev/null
+++ b/node_modules/make-dir/node_modules/semver/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "semver",
+  "version": "6.3.1",
+  "description": "The semantic version parser used by npm.",
+  "main": "semver.js",
+  "scripts": {
+    "test": "tap test/ --100 --timeout=30",
+    "lint": "echo linting disabled",
+    "postlint": "template-oss-check",
+    "template-oss-apply": "template-oss-apply --force",
+    "lintfix": "npm run lint -- --fix",
+    "snap": "tap test/ --100 --timeout=30",
+    "posttest": "npm run lint"
+  },
+  "devDependencies": {
+    "@npmcli/template-oss": "4.17.0",
+    "tap": "^12.7.0"
+  },
+  "license": "ISC",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/node-semver.git"
+  },
+  "bin": {
+    "semver": "./bin/semver.js"
+  },
+  "files": [
+    "bin",
+    "range.bnf",
+    "semver.js"
+  ],
+  "author": "GitHub Inc.",
+  "templateOSS": {
+    "//@npmcli/template-oss": "This file is partially managed by @npmcli/template-oss. Edits may be overwritten.",
+    "content": "./scripts/template-oss",
+    "version": "4.17.0"
+  }
+}
diff --git a/node_modules/make-dir/node_modules/semver/range.bnf b/node_modules/make-dir/node_modules/semver/range.bnf
new file mode 100644
index 0000000..d4c6ae0
--- /dev/null
+++ b/node_modules/make-dir/node_modules/semver/range.bnf
@@ -0,0 +1,16 @@
+range-set  ::= range ( logical-or range ) *
+logical-or ::= ( ' ' ) * '||' ( ' ' ) *
+range      ::= hyphen | simple ( ' ' simple ) * | ''
+hyphen     ::= partial ' - ' partial
+simple     ::= primitive | partial | tilde | caret
+primitive  ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
+partial    ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
+xr         ::= 'x' | 'X' | '*' | nr
+nr         ::= '0' | [1-9] ( [0-9] ) *
+tilde      ::= '~' partial
+caret      ::= '^' partial
+qualifier  ::= ( '-' pre )? ( '+' build )?
+pre        ::= parts
+build      ::= parts
+parts      ::= part ( '.' part ) *
+part       ::= nr | [-0-9A-Za-z]+
diff --git a/node_modules/make-dir/node_modules/semver/semver.js b/node_modules/make-dir/node_modules/semver/semver.js
new file mode 100644
index 0000000..39319c1
--- /dev/null
+++ b/node_modules/make-dir/node_modules/semver/semver.js
@@ -0,0 +1,1643 @@
+exports = module.exports = SemVer
+
+var debug
+/* istanbul ignore next */
+if (typeof process === 'object' &&
+    process.env &&
+    process.env.NODE_DEBUG &&
+    /\bsemver\b/i.test(process.env.NODE_DEBUG)) {
+  debug = function () {
+    var args = Array.prototype.slice.call(arguments, 0)
+    args.unshift('SEMVER')
+    console.log.apply(console, args)
+  }
+} else {
+  debug = function () {}
+}
+
+// Note: this is the semver.org version of the spec that it implements
+// Not necessarily the package version of this code.
+exports.SEMVER_SPEC_VERSION = '2.0.0'
+
+var MAX_LENGTH = 256
+var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER ||
+  /* istanbul ignore next */ 9007199254740991
+
+// Max safe segment length for coercion.
+var MAX_SAFE_COMPONENT_LENGTH = 16
+
+var MAX_SAFE_BUILD_LENGTH = MAX_LENGTH - 6
+
+// The actual regexps go on exports.re
+var re = exports.re = []
+var safeRe = exports.safeRe = []
+var src = exports.src = []
+var t = exports.tokens = {}
+var R = 0
+
+function tok (n) {
+  t[n] = R++
+}
+
+var LETTERDASHNUMBER = '[a-zA-Z0-9-]'
+
+// Replace some greedy regex tokens to prevent regex dos issues. These regex are
+// used internally via the safeRe object since all inputs in this library get
+// normalized first to trim and collapse all extra whitespace. The original
+// regexes are exported for userland consumption and lower level usage. A
+// future breaking change could export the safer regex only with a note that
+// all input should have extra whitespace removed.
+var safeRegexReplacements = [
+  ['\\s', 1],
+  ['\\d', MAX_LENGTH],
+  [LETTERDASHNUMBER, MAX_SAFE_BUILD_LENGTH],
+]
+
+function makeSafeRe (value) {
+  for (var i = 0; i < safeRegexReplacements.length; i++) {
+    var token = safeRegexReplacements[i][0]
+    var max = safeRegexReplacements[i][1]
+    value = value
+      .split(token + '*').join(token + '{0,' + max + '}')
+      .split(token + '+').join(token + '{1,' + max + '}')
+  }
+  return value
+}
+
+// The following Regular Expressions can be used for tokenizing,
+// validating, and parsing SemVer version strings.
+
+// ## Numeric Identifier
+// A single `0`, or a non-zero digit followed by zero or more digits.
+
+tok('NUMERICIDENTIFIER')
+src[t.NUMERICIDENTIFIER] = '0|[1-9]\\d*'
+tok('NUMERICIDENTIFIERLOOSE')
+src[t.NUMERICIDENTIFIERLOOSE] = '\\d+'
+
+// ## Non-numeric Identifier
+// Zero or more digits, followed by a letter or hyphen, and then zero or
+// more letters, digits, or hyphens.
+
+tok('NONNUMERICIDENTIFIER')
+src[t.NONNUMERICIDENTIFIER] = '\\d*[a-zA-Z-]' + LETTERDASHNUMBER + '*'
+
+// ## Main Version
+// Three dot-separated numeric identifiers.
+
+tok('MAINVERSION')
+src[t.MAINVERSION] = '(' + src[t.NUMERICIDENTIFIER] + ')\\.' +
+                   '(' + src[t.NUMERICIDENTIFIER] + ')\\.' +
+                   '(' + src[t.NUMERICIDENTIFIER] + ')'
+
+tok('MAINVERSIONLOOSE')
+src[t.MAINVERSIONLOOSE] = '(' + src[t.NUMERICIDENTIFIERLOOSE] + ')\\.' +
+                        '(' + src[t.NUMERICIDENTIFIERLOOSE] + ')\\.' +
+                        '(' + src[t.NUMERICIDENTIFIERLOOSE] + ')'
+
+// ## Pre-release Version Identifier
+// A numeric identifier, or a non-numeric identifier.
+
+tok('PRERELEASEIDENTIFIER')
+src[t.PRERELEASEIDENTIFIER] = '(?:' + src[t.NUMERICIDENTIFIER] +
+                            '|' + src[t.NONNUMERICIDENTIFIER] + ')'
+
+tok('PRERELEASEIDENTIFIERLOOSE')
+src[t.PRERELEASEIDENTIFIERLOOSE] = '(?:' + src[t.NUMERICIDENTIFIERLOOSE] +
+                                 '|' + src[t.NONNUMERICIDENTIFIER] + ')'
+
+// ## Pre-release Version
+// Hyphen, followed by one or more dot-separated pre-release version
+// identifiers.
+
+tok('PRERELEASE')
+src[t.PRERELEASE] = '(?:-(' + src[t.PRERELEASEIDENTIFIER] +
+                  '(?:\\.' + src[t.PRERELEASEIDENTIFIER] + ')*))'
+
+tok('PRERELEASELOOSE')
+src[t.PRERELEASELOOSE] = '(?:-?(' + src[t.PRERELEASEIDENTIFIERLOOSE] +
+                       '(?:\\.' + src[t.PRERELEASEIDENTIFIERLOOSE] + ')*))'
+
+// ## Build Metadata Identifier
+// Any combination of digits, letters, or hyphens.
+
+tok('BUILDIDENTIFIER')
+src[t.BUILDIDENTIFIER] = LETTERDASHNUMBER + '+'
+
+// ## Build Metadata
+// Plus sign, followed by one or more period-separated build metadata
+// identifiers.
+
+tok('BUILD')
+src[t.BUILD] = '(?:\\+(' + src[t.BUILDIDENTIFIER] +
+             '(?:\\.' + src[t.BUILDIDENTIFIER] + ')*))'
+
+// ## Full Version String
+// A main version, followed optionally by a pre-release version and
+// build metadata.
+
+// Note that the only major, minor, patch, and pre-release sections of
+// the version string are capturing groups.  The build metadata is not a
+// capturing group, because it should not ever be used in version
+// comparison.
+
+tok('FULL')
+tok('FULLPLAIN')
+src[t.FULLPLAIN] = 'v?' + src[t.MAINVERSION] +
+                  src[t.PRERELEASE] + '?' +
+                  src[t.BUILD] + '?'
+
+src[t.FULL] = '^' + src[t.FULLPLAIN] + '$'
+
+// like full, but allows v1.2.3 and =1.2.3, which people do sometimes.
+// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty
+// common in the npm registry.
+tok('LOOSEPLAIN')
+src[t.LOOSEPLAIN] = '[v=\\s]*' + src[t.MAINVERSIONLOOSE] +
+                  src[t.PRERELEASELOOSE] + '?' +
+                  src[t.BUILD] + '?'
+
+tok('LOOSE')
+src[t.LOOSE] = '^' + src[t.LOOSEPLAIN] + '$'
+
+tok('GTLT')
+src[t.GTLT] = '((?:<|>)?=?)'
+
+// Something like "2.*" or "1.2.x".
+// Note that "x.x" is a valid xRange identifer, meaning "any version"
+// Only the first item is strictly required.
+tok('XRANGEIDENTIFIERLOOSE')
+src[t.XRANGEIDENTIFIERLOOSE] = src[t.NUMERICIDENTIFIERLOOSE] + '|x|X|\\*'
+tok('XRANGEIDENTIFIER')
+src[t.XRANGEIDENTIFIER] = src[t.NUMERICIDENTIFIER] + '|x|X|\\*'
+
+tok('XRANGEPLAIN')
+src[t.XRANGEPLAIN] = '[v=\\s]*(' + src[t.XRANGEIDENTIFIER] + ')' +
+                   '(?:\\.(' + src[t.XRANGEIDENTIFIER] + ')' +
+                   '(?:\\.(' + src[t.XRANGEIDENTIFIER] + ')' +
+                   '(?:' + src[t.PRERELEASE] + ')?' +
+                   src[t.BUILD] + '?' +
+                   ')?)?'
+
+tok('XRANGEPLAINLOOSE')
+src[t.XRANGEPLAINLOOSE] = '[v=\\s]*(' + src[t.XRANGEIDENTIFIERLOOSE] + ')' +
+                        '(?:\\.(' + src[t.XRANGEIDENTIFIERLOOSE] + ')' +
+                        '(?:\\.(' + src[t.XRANGEIDENTIFIERLOOSE] + ')' +
+                        '(?:' + src[t.PRERELEASELOOSE] + ')?' +
+                        src[t.BUILD] + '?' +
+                        ')?)?'
+
+tok('XRANGE')
+src[t.XRANGE] = '^' + src[t.GTLT] + '\\s*' + src[t.XRANGEPLAIN] + '$'
+tok('XRANGELOOSE')
+src[t.XRANGELOOSE] = '^' + src[t.GTLT] + '\\s*' + src[t.XRANGEPLAINLOOSE] + '$'
+
+// Coercion.
+// Extract anything that could conceivably be a part of a valid semver
+tok('COERCE')
+src[t.COERCE] = '(^|[^\\d])' +
+              '(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '})' +
+              '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
+              '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
+              '(?:$|[^\\d])'
+tok('COERCERTL')
+re[t.COERCERTL] = new RegExp(src[t.COERCE], 'g')
+safeRe[t.COERCERTL] = new RegExp(makeSafeRe(src[t.COERCE]), 'g')
+
+// Tilde ranges.
+// Meaning is "reasonably at or greater than"
+tok('LONETILDE')
+src[t.LONETILDE] = '(?:~>?)'
+
+tok('TILDETRIM')
+src[t.TILDETRIM] = '(\\s*)' + src[t.LONETILDE] + '\\s+'
+re[t.TILDETRIM] = new RegExp(src[t.TILDETRIM], 'g')
+safeRe[t.TILDETRIM] = new RegExp(makeSafeRe(src[t.TILDETRIM]), 'g')
+var tildeTrimReplace = '$1~'
+
+tok('TILDE')
+src[t.TILDE] = '^' + src[t.LONETILDE] + src[t.XRANGEPLAIN] + '$'
+tok('TILDELOOSE')
+src[t.TILDELOOSE] = '^' + src[t.LONETILDE] + src[t.XRANGEPLAINLOOSE] + '$'
+
+// Caret ranges.
+// Meaning is "at least and backwards compatible with"
+tok('LONECARET')
+src[t.LONECARET] = '(?:\\^)'
+
+tok('CARETTRIM')
+src[t.CARETTRIM] = '(\\s*)' + src[t.LONECARET] + '\\s+'
+re[t.CARETTRIM] = new RegExp(src[t.CARETTRIM], 'g')
+safeRe[t.CARETTRIM] = new RegExp(makeSafeRe(src[t.CARETTRIM]), 'g')
+var caretTrimReplace = '$1^'
+
+tok('CARET')
+src[t.CARET] = '^' + src[t.LONECARET] + src[t.XRANGEPLAIN] + '$'
+tok('CARETLOOSE')
+src[t.CARETLOOSE] = '^' + src[t.LONECARET] + src[t.XRANGEPLAINLOOSE] + '$'
+
+// A simple gt/lt/eq thing, or just "" to indicate "any version"
+tok('COMPARATORLOOSE')
+src[t.COMPARATORLOOSE] = '^' + src[t.GTLT] + '\\s*(' + src[t.LOOSEPLAIN] + ')$|^$'
+tok('COMPARATOR')
+src[t.COMPARATOR] = '^' + src[t.GTLT] + '\\s*(' + src[t.FULLPLAIN] + ')$|^$'
+
+// An expression to strip any whitespace between the gtlt and the thing
+// it modifies, so that `> 1.2.3` ==> `>1.2.3`
+tok('COMPARATORTRIM')
+src[t.COMPARATORTRIM] = '(\\s*)' + src[t.GTLT] +
+                      '\\s*(' + src[t.LOOSEPLAIN] + '|' + src[t.XRANGEPLAIN] + ')'
+
+// this one has to use the /g flag
+re[t.COMPARATORTRIM] = new RegExp(src[t.COMPARATORTRIM], 'g')
+safeRe[t.COMPARATORTRIM] = new RegExp(makeSafeRe(src[t.COMPARATORTRIM]), 'g')
+var comparatorTrimReplace = '$1$2$3'
+
+// Something like `1.2.3 - 1.2.4`
+// Note that these all use the loose form, because they'll be
+// checked against either the strict or loose comparator form
+// later.
+tok('HYPHENRANGE')
+src[t.HYPHENRANGE] = '^\\s*(' + src[t.XRANGEPLAIN] + ')' +
+                   '\\s+-\\s+' +
+                   '(' + src[t.XRANGEPLAIN] + ')' +
+                   '\\s*$'
+
+tok('HYPHENRANGELOOSE')
+src[t.HYPHENRANGELOOSE] = '^\\s*(' + src[t.XRANGEPLAINLOOSE] + ')' +
+                        '\\s+-\\s+' +
+                        '(' + src[t.XRANGEPLAINLOOSE] + ')' +
+                        '\\s*$'
+
+// Star ranges basically just allow anything at all.
+tok('STAR')
+src[t.STAR] = '(<|>)?=?\\s*\\*'
+
+// Compile to actual regexp objects.
+// All are flag-free, unless they were created above with a flag.
+for (var i = 0; i < R; i++) {
+  debug(i, src[i])
+  if (!re[i]) {
+    re[i] = new RegExp(src[i])
+
+    // Replace all greedy whitespace to prevent regex dos issues. These regex are
+    // used internally via the safeRe object since all inputs in this library get
+    // normalized first to trim and collapse all extra whitespace. The original
+    // regexes are exported for userland consumption and lower level usage. A
+    // future breaking change could export the safer regex only with a note that
+    // all input should have extra whitespace removed.
+    safeRe[i] = new RegExp(makeSafeRe(src[i]))
+  }
+}
+
+exports.parse = parse
+function parse (version, options) {
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    }
+  }
+
+  if (version instanceof SemVer) {
+    return version
+  }
+
+  if (typeof version !== 'string') {
+    return null
+  }
+
+  if (version.length > MAX_LENGTH) {
+    return null
+  }
+
+  var r = options.loose ? safeRe[t.LOOSE] : safeRe[t.FULL]
+  if (!r.test(version)) {
+    return null
+  }
+
+  try {
+    return new SemVer(version, options)
+  } catch (er) {
+    return null
+  }
+}
+
+exports.valid = valid
+function valid (version, options) {
+  var v = parse(version, options)
+  return v ? v.version : null
+}
+
+exports.clean = clean
+function clean (version, options) {
+  var s = parse(version.trim().replace(/^[=v]+/, ''), options)
+  return s ? s.version : null
+}
+
+exports.SemVer = SemVer
+
+function SemVer (version, options) {
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    }
+  }
+  if (version instanceof SemVer) {
+    if (version.loose === options.loose) {
+      return version
+    } else {
+      version = version.version
+    }
+  } else if (typeof version !== 'string') {
+    throw new TypeError('Invalid Version: ' + version)
+  }
+
+  if (version.length > MAX_LENGTH) {
+    throw new TypeError('version is longer than ' + MAX_LENGTH + ' characters')
+  }
+
+  if (!(this instanceof SemVer)) {
+    return new SemVer(version, options)
+  }
+
+  debug('SemVer', version, options)
+  this.options = options
+  this.loose = !!options.loose
+
+  var m = version.trim().match(options.loose ? safeRe[t.LOOSE] : safeRe[t.FULL])
+
+  if (!m) {
+    throw new TypeError('Invalid Version: ' + version)
+  }
+
+  this.raw = version
+
+  // these are actually numbers
+  this.major = +m[1]
+  this.minor = +m[2]
+  this.patch = +m[3]
+
+  if (this.major > MAX_SAFE_INTEGER || this.major < 0) {
+    throw new TypeError('Invalid major version')
+  }
+
+  if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) {
+    throw new TypeError('Invalid minor version')
+  }
+
+  if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) {
+    throw new TypeError('Invalid patch version')
+  }
+
+  // numberify any prerelease numeric ids
+  if (!m[4]) {
+    this.prerelease = []
+  } else {
+    this.prerelease = m[4].split('.').map(function (id) {
+      if (/^[0-9]+$/.test(id)) {
+        var num = +id
+        if (num >= 0 && num < MAX_SAFE_INTEGER) {
+          return num
+        }
+      }
+      return id
+    })
+  }
+
+  this.build = m[5] ? m[5].split('.') : []
+  this.format()
+}
+
+SemVer.prototype.format = function () {
+  this.version = this.major + '.' + this.minor + '.' + this.patch
+  if (this.prerelease.length) {
+    this.version += '-' + this.prerelease.join('.')
+  }
+  return this.version
+}
+
+SemVer.prototype.toString = function () {
+  return this.version
+}
+
+SemVer.prototype.compare = function (other) {
+  debug('SemVer.compare', this.version, this.options, other)
+  if (!(other instanceof SemVer)) {
+    other = new SemVer(other, this.options)
+  }
+
+  return this.compareMain(other) || this.comparePre(other)
+}
+
+SemVer.prototype.compareMain = function (other) {
+  if (!(other instanceof SemVer)) {
+    other = new SemVer(other, this.options)
+  }
+
+  return compareIdentifiers(this.major, other.major) ||
+         compareIdentifiers(this.minor, other.minor) ||
+         compareIdentifiers(this.patch, other.patch)
+}
+
+SemVer.prototype.comparePre = function (other) {
+  if (!(other instanceof SemVer)) {
+    other = new SemVer(other, this.options)
+  }
+
+  // NOT having a prerelease is > having one
+  if (this.prerelease.length && !other.prerelease.length) {
+    return -1
+  } else if (!this.prerelease.length && other.prerelease.length) {
+    return 1
+  } else if (!this.prerelease.length && !other.prerelease.length) {
+    return 0
+  }
+
+  var i = 0
+  do {
+    var a = this.prerelease[i]
+    var b = other.prerelease[i]
+    debug('prerelease compare', i, a, b)
+    if (a === undefined && b === undefined) {
+      return 0
+    } else if (b === undefined) {
+      return 1
+    } else if (a === undefined) {
+      return -1
+    } else if (a === b) {
+      continue
+    } else {
+      return compareIdentifiers(a, b)
+    }
+  } while (++i)
+}
+
+SemVer.prototype.compareBuild = function (other) {
+  if (!(other instanceof SemVer)) {
+    other = new SemVer(other, this.options)
+  }
+
+  var i = 0
+  do {
+    var a = this.build[i]
+    var b = other.build[i]
+    debug('prerelease compare', i, a, b)
+    if (a === undefined && b === undefined) {
+      return 0
+    } else if (b === undefined) {
+      return 1
+    } else if (a === undefined) {
+      return -1
+    } else if (a === b) {
+      continue
+    } else {
+      return compareIdentifiers(a, b)
+    }
+  } while (++i)
+}
+
+// preminor will bump the version up to the next minor release, and immediately
+// down to pre-release. premajor and prepatch work the same way.
+SemVer.prototype.inc = function (release, identifier) {
+  switch (release) {
+    case 'premajor':
+      this.prerelease.length = 0
+      this.patch = 0
+      this.minor = 0
+      this.major++
+      this.inc('pre', identifier)
+      break
+    case 'preminor':
+      this.prerelease.length = 0
+      this.patch = 0
+      this.minor++
+      this.inc('pre', identifier)
+      break
+    case 'prepatch':
+      // If this is already a prerelease, it will bump to the next version
+      // drop any prereleases that might already exist, since they are not
+      // relevant at this point.
+      this.prerelease.length = 0
+      this.inc('patch', identifier)
+      this.inc('pre', identifier)
+      break
+    // If the input is a non-prerelease version, this acts the same as
+    // prepatch.
+    case 'prerelease':
+      if (this.prerelease.length === 0) {
+        this.inc('patch', identifier)
+      }
+      this.inc('pre', identifier)
+      break
+
+    case 'major':
+      // If this is a pre-major version, bump up to the same major version.
+      // Otherwise increment major.
+      // 1.0.0-5 bumps to 1.0.0
+      // 1.1.0 bumps to 2.0.0
+      if (this.minor !== 0 ||
+          this.patch !== 0 ||
+          this.prerelease.length === 0) {
+        this.major++
+      }
+      this.minor = 0
+      this.patch = 0
+      this.prerelease = []
+      break
+    case 'minor':
+      // If this is a pre-minor version, bump up to the same minor version.
+      // Otherwise increment minor.
+      // 1.2.0-5 bumps to 1.2.0
+      // 1.2.1 bumps to 1.3.0
+      if (this.patch !== 0 || this.prerelease.length === 0) {
+        this.minor++
+      }
+      this.patch = 0
+      this.prerelease = []
+      break
+    case 'patch':
+      // If this is not a pre-release version, it will increment the patch.
+      // If it is a pre-release it will bump up to the same patch version.
+      // 1.2.0-5 patches to 1.2.0
+      // 1.2.0 patches to 1.2.1
+      if (this.prerelease.length === 0) {
+        this.patch++
+      }
+      this.prerelease = []
+      break
+    // This probably shouldn't be used publicly.
+    // 1.0.0 "pre" would become 1.0.0-0 which is the wrong direction.
+    case 'pre':
+      if (this.prerelease.length === 0) {
+        this.prerelease = [0]
+      } else {
+        var i = this.prerelease.length
+        while (--i >= 0) {
+          if (typeof this.prerelease[i] === 'number') {
+            this.prerelease[i]++
+            i = -2
+          }
+        }
+        if (i === -1) {
+          // didn't increment anything
+          this.prerelease.push(0)
+        }
+      }
+      if (identifier) {
+        // 1.2.0-beta.1 bumps to 1.2.0-beta.2,
+        // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0
+        if (this.prerelease[0] === identifier) {
+          if (isNaN(this.prerelease[1])) {
+            this.prerelease = [identifier, 0]
+          }
+        } else {
+          this.prerelease = [identifier, 0]
+        }
+      }
+      break
+
+    default:
+      throw new Error('invalid increment argument: ' + release)
+  }
+  this.format()
+  this.raw = this.version
+  return this
+}
+
+exports.inc = inc
+function inc (version, release, loose, identifier) {
+  if (typeof (loose) === 'string') {
+    identifier = loose
+    loose = undefined
+  }
+
+  try {
+    return new SemVer(version, loose).inc(release, identifier).version
+  } catch (er) {
+    return null
+  }
+}
+
+exports.diff = diff
+function diff (version1, version2) {
+  if (eq(version1, version2)) {
+    return null
+  } else {
+    var v1 = parse(version1)
+    var v2 = parse(version2)
+    var prefix = ''
+    if (v1.prerelease.length || v2.prerelease.length) {
+      prefix = 'pre'
+      var defaultResult = 'prerelease'
+    }
+    for (var key in v1) {
+      if (key === 'major' || key === 'minor' || key === 'patch') {
+        if (v1[key] !== v2[key]) {
+          return prefix + key
+        }
+      }
+    }
+    return defaultResult // may be undefined
+  }
+}
+
+exports.compareIdentifiers = compareIdentifiers
+
+var numeric = /^[0-9]+$/
+function compareIdentifiers (a, b) {
+  var anum = numeric.test(a)
+  var bnum = numeric.test(b)
+
+  if (anum && bnum) {
+    a = +a
+    b = +b
+  }
+
+  return a === b ? 0
+    : (anum && !bnum) ? -1
+    : (bnum && !anum) ? 1
+    : a < b ? -1
+    : 1
+}
+
+exports.rcompareIdentifiers = rcompareIdentifiers
+function rcompareIdentifiers (a, b) {
+  return compareIdentifiers(b, a)
+}
+
+exports.major = major
+function major (a, loose) {
+  return new SemVer(a, loose).major
+}
+
+exports.minor = minor
+function minor (a, loose) {
+  return new SemVer(a, loose).minor
+}
+
+exports.patch = patch
+function patch (a, loose) {
+  return new SemVer(a, loose).patch
+}
+
+exports.compare = compare
+function compare (a, b, loose) {
+  return new SemVer(a, loose).compare(new SemVer(b, loose))
+}
+
+exports.compareLoose = compareLoose
+function compareLoose (a, b) {
+  return compare(a, b, true)
+}
+
+exports.compareBuild = compareBuild
+function compareBuild (a, b, loose) {
+  var versionA = new SemVer(a, loose)
+  var versionB = new SemVer(b, loose)
+  return versionA.compare(versionB) || versionA.compareBuild(versionB)
+}
+
+exports.rcompare = rcompare
+function rcompare (a, b, loose) {
+  return compare(b, a, loose)
+}
+
+exports.sort = sort
+function sort (list, loose) {
+  return list.sort(function (a, b) {
+    return exports.compareBuild(a, b, loose)
+  })
+}
+
+exports.rsort = rsort
+function rsort (list, loose) {
+  return list.sort(function (a, b) {
+    return exports.compareBuild(b, a, loose)
+  })
+}
+
+exports.gt = gt
+function gt (a, b, loose) {
+  return compare(a, b, loose) > 0
+}
+
+exports.lt = lt
+function lt (a, b, loose) {
+  return compare(a, b, loose) < 0
+}
+
+exports.eq = eq
+function eq (a, b, loose) {
+  return compare(a, b, loose) === 0
+}
+
+exports.neq = neq
+function neq (a, b, loose) {
+  return compare(a, b, loose) !== 0
+}
+
+exports.gte = gte
+function gte (a, b, loose) {
+  return compare(a, b, loose) >= 0
+}
+
+exports.lte = lte
+function lte (a, b, loose) {
+  return compare(a, b, loose) <= 0
+}
+
+exports.cmp = cmp
+function cmp (a, op, b, loose) {
+  switch (op) {
+    case '===':
+      if (typeof a === 'object')
+        a = a.version
+      if (typeof b === 'object')
+        b = b.version
+      return a === b
+
+    case '!==':
+      if (typeof a === 'object')
+        a = a.version
+      if (typeof b === 'object')
+        b = b.version
+      return a !== b
+
+    case '':
+    case '=':
+    case '==':
+      return eq(a, b, loose)
+
+    case '!=':
+      return neq(a, b, loose)
+
+    case '>':
+      return gt(a, b, loose)
+
+    case '>=':
+      return gte(a, b, loose)
+
+    case '<':
+      return lt(a, b, loose)
+
+    case '<=':
+      return lte(a, b, loose)
+
+    default:
+      throw new TypeError('Invalid operator: ' + op)
+  }
+}
+
+exports.Comparator = Comparator
+function Comparator (comp, options) {
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    }
+  }
+
+  if (comp instanceof Comparator) {
+    if (comp.loose === !!options.loose) {
+      return comp
+    } else {
+      comp = comp.value
+    }
+  }
+
+  if (!(this instanceof Comparator)) {
+    return new Comparator(comp, options)
+  }
+
+  comp = comp.trim().split(/\s+/).join(' ')
+  debug('comparator', comp, options)
+  this.options = options
+  this.loose = !!options.loose
+  this.parse(comp)
+
+  if (this.semver === ANY) {
+    this.value = ''
+  } else {
+    this.value = this.operator + this.semver.version
+  }
+
+  debug('comp', this)
+}
+
+var ANY = {}
+Comparator.prototype.parse = function (comp) {
+  var r = this.options.loose ? safeRe[t.COMPARATORLOOSE] : safeRe[t.COMPARATOR]
+  var m = comp.match(r)
+
+  if (!m) {
+    throw new TypeError('Invalid comparator: ' + comp)
+  }
+
+  this.operator = m[1] !== undefined ? m[1] : ''
+  if (this.operator === '=') {
+    this.operator = ''
+  }
+
+  // if it literally is just '>' or '' then allow anything.
+  if (!m[2]) {
+    this.semver = ANY
+  } else {
+    this.semver = new SemVer(m[2], this.options.loose)
+  }
+}
+
+Comparator.prototype.toString = function () {
+  return this.value
+}
+
+Comparator.prototype.test = function (version) {
+  debug('Comparator.test', version, this.options.loose)
+
+  if (this.semver === ANY || version === ANY) {
+    return true
+  }
+
+  if (typeof version === 'string') {
+    try {
+      version = new SemVer(version, this.options)
+    } catch (er) {
+      return false
+    }
+  }
+
+  return cmp(version, this.operator, this.semver, this.options)
+}
+
+Comparator.prototype.intersects = function (comp, options) {
+  if (!(comp instanceof Comparator)) {
+    throw new TypeError('a Comparator is required')
+  }
+
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    }
+  }
+
+  var rangeTmp
+
+  if (this.operator === '') {
+    if (this.value === '') {
+      return true
+    }
+    rangeTmp = new Range(comp.value, options)
+    return satisfies(this.value, rangeTmp, options)
+  } else if (comp.operator === '') {
+    if (comp.value === '') {
+      return true
+    }
+    rangeTmp = new Range(this.value, options)
+    return satisfies(comp.semver, rangeTmp, options)
+  }
+
+  var sameDirectionIncreasing =
+    (this.operator === '>=' || this.operator === '>') &&
+    (comp.operator === '>=' || comp.operator === '>')
+  var sameDirectionDecreasing =
+    (this.operator === '<=' || this.operator === '<') &&
+    (comp.operator === '<=' || comp.operator === '<')
+  var sameSemVer = this.semver.version === comp.semver.version
+  var differentDirectionsInclusive =
+    (this.operator === '>=' || this.operator === '<=') &&
+    (comp.operator === '>=' || comp.operator === '<=')
+  var oppositeDirectionsLessThan =
+    cmp(this.semver, '<', comp.semver, options) &&
+    ((this.operator === '>=' || this.operator === '>') &&
+    (comp.operator === '<=' || comp.operator === '<'))
+  var oppositeDirectionsGreaterThan =
+    cmp(this.semver, '>', comp.semver, options) &&
+    ((this.operator === '<=' || this.operator === '<') &&
+    (comp.operator === '>=' || comp.operator === '>'))
+
+  return sameDirectionIncreasing || sameDirectionDecreasing ||
+    (sameSemVer && differentDirectionsInclusive) ||
+    oppositeDirectionsLessThan || oppositeDirectionsGreaterThan
+}
+
+exports.Range = Range
+function Range (range, options) {
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    }
+  }
+
+  if (range instanceof Range) {
+    if (range.loose === !!options.loose &&
+        range.includePrerelease === !!options.includePrerelease) {
+      return range
+    } else {
+      return new Range(range.raw, options)
+    }
+  }
+
+  if (range instanceof Comparator) {
+    return new Range(range.value, options)
+  }
+
+  if (!(this instanceof Range)) {
+    return new Range(range, options)
+  }
+
+  this.options = options
+  this.loose = !!options.loose
+  this.includePrerelease = !!options.includePrerelease
+
+  // First reduce all whitespace as much as possible so we do not have to rely
+  // on potentially slow regexes like \s*. This is then stored and used for
+  // future error messages as well.
+  this.raw = range
+    .trim()
+    .split(/\s+/)
+    .join(' ')
+
+  // First, split based on boolean or ||
+  this.set = this.raw.split('||').map(function (range) {
+    return this.parseRange(range.trim())
+  }, this).filter(function (c) {
+    // throw out any that are not relevant for whatever reason
+    return c.length
+  })
+
+  if (!this.set.length) {
+    throw new TypeError('Invalid SemVer Range: ' + this.raw)
+  }
+
+  this.format()
+}
+
+Range.prototype.format = function () {
+  this.range = this.set.map(function (comps) {
+    return comps.join(' ').trim()
+  }).join('||').trim()
+  return this.range
+}
+
+Range.prototype.toString = function () {
+  return this.range
+}
+
+Range.prototype.parseRange = function (range) {
+  var loose = this.options.loose
+  // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4`
+  var hr = loose ? safeRe[t.HYPHENRANGELOOSE] : safeRe[t.HYPHENRANGE]
+  range = range.replace(hr, hyphenReplace)
+  debug('hyphen replace', range)
+  // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5`
+  range = range.replace(safeRe[t.COMPARATORTRIM], comparatorTrimReplace)
+  debug('comparator trim', range, safeRe[t.COMPARATORTRIM])
+
+  // `~ 1.2.3` => `~1.2.3`
+  range = range.replace(safeRe[t.TILDETRIM], tildeTrimReplace)
+
+  // `^ 1.2.3` => `^1.2.3`
+  range = range.replace(safeRe[t.CARETTRIM], caretTrimReplace)
+
+  // normalize spaces
+  range = range.split(/\s+/).join(' ')
+
+  // At this point, the range is completely trimmed and
+  // ready to be split into comparators.
+
+  var compRe = loose ? safeRe[t.COMPARATORLOOSE] : safeRe[t.COMPARATOR]
+  var set = range.split(' ').map(function (comp) {
+    return parseComparator(comp, this.options)
+  }, this).join(' ').split(/\s+/)
+  if (this.options.loose) {
+    // in loose mode, throw out any that are not valid comparators
+    set = set.filter(function (comp) {
+      return !!comp.match(compRe)
+    })
+  }
+  set = set.map(function (comp) {
+    return new Comparator(comp, this.options)
+  }, this)
+
+  return set
+}
+
+Range.prototype.intersects = function (range, options) {
+  if (!(range instanceof Range)) {
+    throw new TypeError('a Range is required')
+  }
+
+  return this.set.some(function (thisComparators) {
+    return (
+      isSatisfiable(thisComparators, options) &&
+      range.set.some(function (rangeComparators) {
+        return (
+          isSatisfiable(rangeComparators, options) &&
+          thisComparators.every(function (thisComparator) {
+            return rangeComparators.every(function (rangeComparator) {
+              return thisComparator.intersects(rangeComparator, options)
+            })
+          })
+        )
+      })
+    )
+  })
+}
+
+// take a set of comparators and determine whether there
+// exists a version which can satisfy it
+function isSatisfiable (comparators, options) {
+  var result = true
+  var remainingComparators = comparators.slice()
+  var testComparator = remainingComparators.pop()
+
+  while (result && remainingComparators.length) {
+    result = remainingComparators.every(function (otherComparator) {
+      return testComparator.intersects(otherComparator, options)
+    })
+
+    testComparator = remainingComparators.pop()
+  }
+
+  return result
+}
+
+// Mostly just for testing and legacy API reasons
+exports.toComparators = toComparators
+function toComparators (range, options) {
+  return new Range(range, options).set.map(function (comp) {
+    return comp.map(function (c) {
+      return c.value
+    }).join(' ').trim().split(' ')
+  })
+}
+
+// comprised of xranges, tildes, stars, and gtlt's at this point.
+// already replaced the hyphen ranges
+// turn into a set of JUST comparators.
+function parseComparator (comp, options) {
+  debug('comp', comp, options)
+  comp = replaceCarets(comp, options)
+  debug('caret', comp)
+  comp = replaceTildes(comp, options)
+  debug('tildes', comp)
+  comp = replaceXRanges(comp, options)
+  debug('xrange', comp)
+  comp = replaceStars(comp, options)
+  debug('stars', comp)
+  return comp
+}
+
+function isX (id) {
+  return !id || id.toLowerCase() === 'x' || id === '*'
+}
+
+// ~, ~> --> * (any, kinda silly)
+// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0
+// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0
+// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0
+// ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0
+// ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0
+function replaceTildes (comp, options) {
+  return comp.trim().split(/\s+/).map(function (comp) {
+    return replaceTilde(comp, options)
+  }).join(' ')
+}
+
+function replaceTilde (comp, options) {
+  var r = options.loose ? safeRe[t.TILDELOOSE] : safeRe[t.TILDE]
+  return comp.replace(r, function (_, M, m, p, pr) {
+    debug('tilde', comp, _, M, m, p, pr)
+    var ret
+
+    if (isX(M)) {
+      ret = ''
+    } else if (isX(m)) {
+      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0'
+    } else if (isX(p)) {
+      // ~1.2 == >=1.2.0 <1.3.0
+      ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0'
+    } else if (pr) {
+      debug('replaceTilde pr', pr)
+      ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+            ' <' + M + '.' + (+m + 1) + '.0'
+    } else {
+      // ~1.2.3 == >=1.2.3 <1.3.0
+      ret = '>=' + M + '.' + m + '.' + p +
+            ' <' + M + '.' + (+m + 1) + '.0'
+    }
+
+    debug('tilde return', ret)
+    return ret
+  })
+}
+
+// ^ --> * (any, kinda silly)
+// ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0
+// ^2.0, ^2.0.x --> >=2.0.0 <3.0.0
+// ^1.2, ^1.2.x --> >=1.2.0 <2.0.0
+// ^1.2.3 --> >=1.2.3 <2.0.0
+// ^1.2.0 --> >=1.2.0 <2.0.0
+function replaceCarets (comp, options) {
+  return comp.trim().split(/\s+/).map(function (comp) {
+    return replaceCaret(comp, options)
+  }).join(' ')
+}
+
+function replaceCaret (comp, options) {
+  debug('caret', comp, options)
+  var r = options.loose ? safeRe[t.CARETLOOSE] : safeRe[t.CARET]
+  return comp.replace(r, function (_, M, m, p, pr) {
+    debug('caret', comp, _, M, m, p, pr)
+    var ret
+
+    if (isX(M)) {
+      ret = ''
+    } else if (isX(m)) {
+      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0'
+    } else if (isX(p)) {
+      if (M === '0') {
+        ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0'
+      } else {
+        ret = '>=' + M + '.' + m + '.0 <' + (+M + 1) + '.0.0'
+      }
+    } else if (pr) {
+      debug('replaceCaret pr', pr)
+      if (M === '0') {
+        if (m === '0') {
+          ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+                ' <' + M + '.' + m + '.' + (+p + 1)
+        } else {
+          ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+                ' <' + M + '.' + (+m + 1) + '.0'
+        }
+      } else {
+        ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+              ' <' + (+M + 1) + '.0.0'
+      }
+    } else {
+      debug('no pr')
+      if (M === '0') {
+        if (m === '0') {
+          ret = '>=' + M + '.' + m + '.' + p +
+                ' <' + M + '.' + m + '.' + (+p + 1)
+        } else {
+          ret = '>=' + M + '.' + m + '.' + p +
+                ' <' + M + '.' + (+m + 1) + '.0'
+        }
+      } else {
+        ret = '>=' + M + '.' + m + '.' + p +
+              ' <' + (+M + 1) + '.0.0'
+      }
+    }
+
+    debug('caret return', ret)
+    return ret
+  })
+}
+
+function replaceXRanges (comp, options) {
+  debug('replaceXRanges', comp, options)
+  return comp.split(/\s+/).map(function (comp) {
+    return replaceXRange(comp, options)
+  }).join(' ')
+}
+
+function replaceXRange (comp, options) {
+  comp = comp.trim()
+  var r = options.loose ? safeRe[t.XRANGELOOSE] : safeRe[t.XRANGE]
+  return comp.replace(r, function (ret, gtlt, M, m, p, pr) {
+    debug('xRange', comp, ret, gtlt, M, m, p, pr)
+    var xM = isX(M)
+    var xm = xM || isX(m)
+    var xp = xm || isX(p)
+    var anyX = xp
+
+    if (gtlt === '=' && anyX) {
+      gtlt = ''
+    }
+
+    // if we're including prereleases in the match, then we need
+    // to fix this to -0, the lowest possible prerelease value
+    pr = options.includePrerelease ? '-0' : ''
+
+    if (xM) {
+      if (gtlt === '>' || gtlt === '<') {
+        // nothing is allowed
+        ret = '<0.0.0-0'
+      } else {
+        // nothing is forbidden
+        ret = '*'
+      }
+    } else if (gtlt && anyX) {
+      // we know patch is an x, because we have any x at all.
+      // replace X with 0
+      if (xm) {
+        m = 0
+      }
+      p = 0
+
+      if (gtlt === '>') {
+        // >1 => >=2.0.0
+        // >1.2 => >=1.3.0
+        // >1.2.3 => >= 1.2.4
+        gtlt = '>='
+        if (xm) {
+          M = +M + 1
+          m = 0
+          p = 0
+        } else {
+          m = +m + 1
+          p = 0
+        }
+      } else if (gtlt === '<=') {
+        // <=0.7.x is actually <0.8.0, since any 0.7.x should
+        // pass.  Similarly, <=7.x is actually <8.0.0, etc.
+        gtlt = '<'
+        if (xm) {
+          M = +M + 1
+        } else {
+          m = +m + 1
+        }
+      }
+
+      ret = gtlt + M + '.' + m + '.' + p + pr
+    } else if (xm) {
+      ret = '>=' + M + '.0.0' + pr + ' <' + (+M + 1) + '.0.0' + pr
+    } else if (xp) {
+      ret = '>=' + M + '.' + m + '.0' + pr +
+        ' <' + M + '.' + (+m + 1) + '.0' + pr
+    }
+
+    debug('xRange return', ret)
+
+    return ret
+  })
+}
+
+// Because * is AND-ed with everything else in the comparator,
+// and '' means "any version", just remove the *s entirely.
+function replaceStars (comp, options) {
+  debug('replaceStars', comp, options)
+  // Looseness is ignored here.  star is always as loose as it gets!
+  return comp.trim().replace(safeRe[t.STAR], '')
+}
+
+// This function is passed to string.replace(re[t.HYPHENRANGE])
+// M, m, patch, prerelease, build
+// 1.2 - 3.4.5 => >=1.2.0 <=3.4.5
+// 1.2.3 - 3.4 => >=1.2.0 <3.5.0 Any 3.4.x will do
+// 1.2 - 3.4 => >=1.2.0 <3.5.0
+function hyphenReplace ($0,
+  from, fM, fm, fp, fpr, fb,
+  to, tM, tm, tp, tpr, tb) {
+  if (isX(fM)) {
+    from = ''
+  } else if (isX(fm)) {
+    from = '>=' + fM + '.0.0'
+  } else if (isX(fp)) {
+    from = '>=' + fM + '.' + fm + '.0'
+  } else {
+    from = '>=' + from
+  }
+
+  if (isX(tM)) {
+    to = ''
+  } else if (isX(tm)) {
+    to = '<' + (+tM + 1) + '.0.0'
+  } else if (isX(tp)) {
+    to = '<' + tM + '.' + (+tm + 1) + '.0'
+  } else if (tpr) {
+    to = '<=' + tM + '.' + tm + '.' + tp + '-' + tpr
+  } else {
+    to = '<=' + to
+  }
+
+  return (from + ' ' + to).trim()
+}
+
+// if ANY of the sets match ALL of its comparators, then pass
+Range.prototype.test = function (version) {
+  if (!version) {
+    return false
+  }
+
+  if (typeof version === 'string') {
+    try {
+      version = new SemVer(version, this.options)
+    } catch (er) {
+      return false
+    }
+  }
+
+  for (var i = 0; i < this.set.length; i++) {
+    if (testSet(this.set[i], version, this.options)) {
+      return true
+    }
+  }
+  return false
+}
+
+function testSet (set, version, options) {
+  for (var i = 0; i < set.length; i++) {
+    if (!set[i].test(version)) {
+      return false
+    }
+  }
+
+  if (version.prerelease.length && !options.includePrerelease) {
+    // Find the set of versions that are allowed to have prereleases
+    // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0
+    // That should allow `1.2.3-pr.2` to pass.
+    // However, `1.2.4-alpha.notready` should NOT be allowed,
+    // even though it's within the range set by the comparators.
+    for (i = 0; i < set.length; i++) {
+      debug(set[i].semver)
+      if (set[i].semver === ANY) {
+        continue
+      }
+
+      if (set[i].semver.prerelease.length > 0) {
+        var allowed = set[i].semver
+        if (allowed.major === version.major &&
+            allowed.minor === version.minor &&
+            allowed.patch === version.patch) {
+          return true
+        }
+      }
+    }
+
+    // Version has a -pre, but it's not one of the ones we like.
+    return false
+  }
+
+  return true
+}
+
+exports.satisfies = satisfies
+function satisfies (version, range, options) {
+  try {
+    range = new Range(range, options)
+  } catch (er) {
+    return false
+  }
+  return range.test(version)
+}
+
+exports.maxSatisfying = maxSatisfying
+function maxSatisfying (versions, range, options) {
+  var max = null
+  var maxSV = null
+  try {
+    var rangeObj = new Range(range, options)
+  } catch (er) {
+    return null
+  }
+  versions.forEach(function (v) {
+    if (rangeObj.test(v)) {
+      // satisfies(v, range, options)
+      if (!max || maxSV.compare(v) === -1) {
+        // compare(max, v, true)
+        max = v
+        maxSV = new SemVer(max, options)
+      }
+    }
+  })
+  return max
+}
+
+exports.minSatisfying = minSatisfying
+function minSatisfying (versions, range, options) {
+  var min = null
+  var minSV = null
+  try {
+    var rangeObj = new Range(range, options)
+  } catch (er) {
+    return null
+  }
+  versions.forEach(function (v) {
+    if (rangeObj.test(v)) {
+      // satisfies(v, range, options)
+      if (!min || minSV.compare(v) === 1) {
+        // compare(min, v, true)
+        min = v
+        minSV = new SemVer(min, options)
+      }
+    }
+  })
+  return min
+}
+
+exports.minVersion = minVersion
+function minVersion (range, loose) {
+  range = new Range(range, loose)
+
+  var minver = new SemVer('0.0.0')
+  if (range.test(minver)) {
+    return minver
+  }
+
+  minver = new SemVer('0.0.0-0')
+  if (range.test(minver)) {
+    return minver
+  }
+
+  minver = null
+  for (var i = 0; i < range.set.length; ++i) {
+    var comparators = range.set[i]
+
+    comparators.forEach(function (comparator) {
+      // Clone to avoid manipulating the comparator's semver object.
+      var compver = new SemVer(comparator.semver.version)
+      switch (comparator.operator) {
+        case '>':
+          if (compver.prerelease.length === 0) {
+            compver.patch++
+          } else {
+            compver.prerelease.push(0)
+          }
+          compver.raw = compver.format()
+          /* fallthrough */
+        case '':
+        case '>=':
+          if (!minver || gt(minver, compver)) {
+            minver = compver
+          }
+          break
+        case '<':
+        case '<=':
+          /* Ignore maximum versions */
+          break
+        /* istanbul ignore next */
+        default:
+          throw new Error('Unexpected operation: ' + comparator.operator)
+      }
+    })
+  }
+
+  if (minver && range.test(minver)) {
+    return minver
+  }
+
+  return null
+}
+
+exports.validRange = validRange
+function validRange (range, options) {
+  try {
+    // Return '*' instead of '' so that truthiness works.
+    // This will throw if it's invalid anyway
+    return new Range(range, options).range || '*'
+  } catch (er) {
+    return null
+  }
+}
+
+// Determine if version is less than all the versions possible in the range
+exports.ltr = ltr
+function ltr (version, range, options) {
+  return outside(version, range, '<', options)
+}
+
+// Determine if version is greater than all the versions possible in the range.
+exports.gtr = gtr
+function gtr (version, range, options) {
+  return outside(version, range, '>', options)
+}
+
+exports.outside = outside
+function outside (version, range, hilo, options) {
+  version = new SemVer(version, options)
+  range = new Range(range, options)
+
+  var gtfn, ltefn, ltfn, comp, ecomp
+  switch (hilo) {
+    case '>':
+      gtfn = gt
+      ltefn = lte
+      ltfn = lt
+      comp = '>'
+      ecomp = '>='
+      break
+    case '<':
+      gtfn = lt
+      ltefn = gte
+      ltfn = gt
+      comp = '<'
+      ecomp = '<='
+      break
+    default:
+      throw new TypeError('Must provide a hilo val of "<" or ">"')
+  }
+
+  // If it satisifes the range it is not outside
+  if (satisfies(version, range, options)) {
+    return false
+  }
+
+  // From now on, variable terms are as if we're in "gtr" mode.
+  // but note that everything is flipped for the "ltr" function.
+
+  for (var i = 0; i < range.set.length; ++i) {
+    var comparators = range.set[i]
+
+    var high = null
+    var low = null
+
+    comparators.forEach(function (comparator) {
+      if (comparator.semver === ANY) {
+        comparator = new Comparator('>=0.0.0')
+      }
+      high = high || comparator
+      low = low || comparator
+      if (gtfn(comparator.semver, high.semver, options)) {
+        high = comparator
+      } else if (ltfn(comparator.semver, low.semver, options)) {
+        low = comparator
+      }
+    })
+
+    // If the edge version comparator has a operator then our version
+    // isn't outside it
+    if (high.operator === comp || high.operator === ecomp) {
+      return false
+    }
+
+    // If the lowest version comparator has an operator and our version
+    // is less than it then it isn't higher than the range
+    if ((!low.operator || low.operator === comp) &&
+        ltefn(version, low.semver)) {
+      return false
+    } else if (low.operator === ecomp && ltfn(version, low.semver)) {
+      return false
+    }
+  }
+  return true
+}
+
+exports.prerelease = prerelease
+function prerelease (version, options) {
+  var parsed = parse(version, options)
+  return (parsed && parsed.prerelease.length) ? parsed.prerelease : null
+}
+
+exports.intersects = intersects
+function intersects (r1, r2, options) {
+  r1 = new Range(r1, options)
+  r2 = new Range(r2, options)
+  return r1.intersects(r2)
+}
+
+exports.coerce = coerce
+function coerce (version, options) {
+  if (version instanceof SemVer) {
+    return version
+  }
+
+  if (typeof version === 'number') {
+    version = String(version)
+  }
+
+  if (typeof version !== 'string') {
+    return null
+  }
+
+  options = options || {}
+
+  var match = null
+  if (!options.rtl) {
+    match = version.match(safeRe[t.COERCE])
+  } else {
+    // Find the right-most coercible string that does not share
+    // a terminus with a more left-ward coercible string.
+    // Eg, '1.2.3.4' wants to coerce '2.3.4', not '3.4' or '4'
+    //
+    // Walk through the string checking with a /g regexp
+    // Manually set the index so as to pick up overlapping matches.
+    // Stop when we get a match that ends at the string end, since no
+    // coercible string can be more right-ward without the same terminus.
+    var next
+    while ((next = safeRe[t.COERCERTL].exec(version)) &&
+      (!match || match.index + match[0].length !== version.length)
+    ) {
+      if (!match ||
+          next.index + next[0].length !== match.index + match[0].length) {
+        match = next
+      }
+      safeRe[t.COERCERTL].lastIndex = next.index + next[1].length + next[2].length
+    }
+    // leave it in a clean state
+    safeRe[t.COERCERTL].lastIndex = -1
+  }
+
+  if (match === null) {
+    return null
+  }
+
+  return parse(match[2] +
+    '.' + (match[3] || '0') +
+    '.' + (match[4] || '0'), options)
+}
diff --git a/node_modules/make-dir/package.json b/node_modules/make-dir/package.json
new file mode 100644
index 0000000..98403ea
--- /dev/null
+++ b/node_modules/make-dir/package.json
@@ -0,0 +1,59 @@
+{
+	"name": "make-dir",
+	"version": "3.1.0",
+	"description": "Make a directory and its parents if needed - Think `mkdir -p`",
+	"license": "MIT",
+	"repository": "sindresorhus/make-dir",
+	"funding": "https://github.com/sponsors/sindresorhus",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=8"
+	},
+	"scripts": {
+		"test": "xo && nyc ava && tsd"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"mkdir",
+		"mkdirp",
+		"make",
+		"directories",
+		"dir",
+		"dirs",
+		"folders",
+		"directory",
+		"folder",
+		"path",
+		"parent",
+		"parents",
+		"intermediate",
+		"recursively",
+		"recursive",
+		"create",
+		"fs",
+		"filesystem",
+		"file-system"
+	],
+	"dependencies": {
+		"semver": "^6.0.0"
+	},
+	"devDependencies": {
+		"@types/graceful-fs": "^4.1.3",
+		"@types/node": "^13.7.1",
+		"ava": "^1.4.0",
+		"codecov": "^3.2.0",
+		"graceful-fs": "^4.1.15",
+		"nyc": "^15.0.0",
+		"path-type": "^4.0.0",
+		"tempy": "^0.2.1",
+		"tsd": "^0.11.0",
+		"xo": "^0.25.4"
+	}
+}
diff --git a/node_modules/make-dir/readme.md b/node_modules/make-dir/readme.md
new file mode 100644
index 0000000..a10a1a4
--- /dev/null
+++ b/node_modules/make-dir/readme.md
@@ -0,0 +1,125 @@
+# make-dir [![Build Status](https://travis-ci.org/sindresorhus/make-dir.svg?branch=master)](https://travis-ci.org/sindresorhus/make-dir) [![codecov](https://codecov.io/gh/sindresorhus/make-dir/branch/master/graph/badge.svg)](https://codecov.io/gh/sindresorhus/make-dir)
+
+> Make a directory and its parents if needed - Think `mkdir -p`
+
+## Advantages over [`mkdirp`](https://github.com/substack/node-mkdirp)
+
+- Promise API *(Async/await ready!)*
+- Fixes many `mkdirp` issues: [#96](https://github.com/substack/node-mkdirp/pull/96) [#70](https://github.com/substack/node-mkdirp/issues/70) [#66](https://github.com/substack/node-mkdirp/issues/66)
+- 100% test coverage
+- CI-tested on macOS, Linux, and Windows
+- Actively maintained
+- Doesn't bundle a CLI
+- Uses the native `fs.mkdir/mkdirSync` [`recursive` option](https://nodejs.org/dist/latest/docs/api/fs.html#fs_fs_mkdir_path_options_callback) in Node.js >=10.12.0 unless [overridden](#fs)
+
+## Install
+
+```
+$ npm install make-dir
+```
+
+## Usage
+
+```
+$ pwd
+/Users/sindresorhus/fun
+$ tree
+.
+```
+
+```js
+const makeDir = require('make-dir');
+
+(async () => {
+	const path = await makeDir('unicorn/rainbow/cake');
+
+	console.log(path);
+	//=> '/Users/sindresorhus/fun/unicorn/rainbow/cake'
+})();
+```
+
+```
+$ tree
+.
+└── unicorn
+    └── rainbow
+        └── cake
+```
+
+Multiple directories:
+
+```js
+const makeDir = require('make-dir');
+
+(async () => {
+	const paths = await Promise.all([
+		makeDir('unicorn/rainbow'),
+		makeDir('foo/bar')
+	]);
+
+	console.log(paths);
+	/*
+	[
+		'/Users/sindresorhus/fun/unicorn/rainbow',
+		'/Users/sindresorhus/fun/foo/bar'
+	]
+	*/
+})();
+```
+
+## API
+
+### makeDir(path, options?)
+
+Returns a `Promise` for the path to the created directory.
+
+### makeDir.sync(path, options?)
+
+Returns the path to the created directory.
+
+#### path
+
+Type: `string`
+
+Directory to create.
+
+#### options
+
+Type: `object`
+
+##### mode
+
+Type: `integer`\
+Default: `0o777`
+
+Directory [permissions](https://x-team.com/blog/file-system-permissions-umask-node-js/).
+
+##### fs
+
+Type: `object`\
+Default: `require('fs')`
+
+Use a custom `fs` implementation. For example [`graceful-fs`](https://github.com/isaacs/node-graceful-fs).
+
+Using a custom `fs` implementation will block the use of the native `recursive` option if `fs.mkdir` or `fs.mkdirSync` is not the native function.
+
+## Related
+
+- [make-dir-cli](https://github.com/sindresorhus/make-dir-cli) - CLI for this module
+- [del](https://github.com/sindresorhus/del) - Delete files and directories
+- [globby](https://github.com/sindresorhus/globby) - User-friendly glob matching
+- [cpy](https://github.com/sindresorhus/cpy) - Copy files
+- [cpy-cli](https://github.com/sindresorhus/cpy-cli) - Copy files on the command-line
+- [move-file](https://github.com/sindresorhus/move-file) - Move a file
+
+---
+
+<div align="center">
+	<b>
+		<a href="https://tidelift.com/subscription/pkg/npm-make-dir?utm_source=npm-make-dir&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
+	</b>
+	<br>
+	<sub>
+		Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
+	</sub>
+</div>
diff --git a/node_modules/make-fetch-happen/LICENSE b/node_modules/make-fetch-happen/LICENSE
new file mode 100644
index 0000000..8d28acf
--- /dev/null
+++ b/node_modules/make-fetch-happen/LICENSE
@@ -0,0 +1,16 @@
+ISC License
+
+Copyright (c) npm, Inc.
+
+Permission to use, copy, modify, and/or distribute this software for
+any purpose with or without fee is hereby granted, provided that the
+above copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE COPYRIGHT HOLDER DISCLAIMS
+ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
+USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/make-fetch-happen/README.md b/node_modules/make-fetch-happen/README.md
new file mode 100644
index 0000000..87659c9
--- /dev/null
+++ b/node_modules/make-fetch-happen/README.md
@@ -0,0 +1,395 @@
+# make-fetch-happen
+[![npm version](https://img.shields.io/npm/v/make-fetch-happen.svg)](https://npm.im/make-fetch-happen) [![license](https://img.shields.io/npm/l/make-fetch-happen.svg)](https://npm.im/make-fetch-happen) [![Travis](https://img.shields.io/travis/npm/make-fetch-happen.svg)](https://travis-ci.org/npm/make-fetch-happen) [![Coverage Status](https://coveralls.io/repos/github/npm/make-fetch-happen/badge.svg?branch=latest)](https://coveralls.io/github/npm/make-fetch-happen?branch=latest)
+
+[`make-fetch-happen`](https://github.com/npm/make-fetch-happen) is a Node.js
+library that wraps [`minipass-fetch`](https://github.com/npm/minipass-fetch) with additional
+features [`minipass-fetch`](https://github.com/npm/minipass-fetch) doesn't intend to include, including HTTP Cache support, request
+pooling, proxies, retries, [and more](#features)!
+
+## Install
+
+`$ npm install --save make-fetch-happen`
+
+## Table of Contents
+
+* [Example](#example)
+* [Features](#features)
+* [Contributing](#contributing)
+* [API](#api)
+  * [`fetch`](#fetch)
+  * [`fetch.defaults`](#fetch-defaults)
+  * [`minipass-fetch` options](#minipass-fetch-options)
+  * [`make-fetch-happen` options](#extra-options)
+    * [`opts.cachePath`](#opts-cache-path)
+    * [`opts.cache`](#opts-cache)
+    * [`opts.proxy`](#opts-proxy)
+    * [`opts.noProxy`](#opts-no-proxy)
+    * [`opts.ca, opts.cert, opts.key`](#https-opts)
+    * [`opts.maxSockets`](#opts-max-sockets)
+    * [`opts.retry`](#opts-retry)
+    * [`opts.onRetry`](#opts-onretry)
+    * [`opts.integrity`](#opts-integrity)
+* [Message From Our Sponsors](#wow)
+
+### Example
+
+```javascript
+const fetch = require('make-fetch-happen').defaults({
+  cachePath: './my-cache' // path where cache will be written (and read)
+})
+
+fetch('https://registry.npmjs.org/make-fetch-happen').then(res => {
+  return res.json() // download the body as JSON
+}).then(body => {
+  console.log(`got ${body.name} from web`)
+  return fetch('https://registry.npmjs.org/make-fetch-happen', {
+    cache: 'no-cache' // forces a conditional request
+  })
+}).then(res => {
+  console.log(res.status) // 304! cache validated!
+  return res.json().then(body => {
+    console.log(`got ${body.name} from cache`)
+  })
+})
+```
+
+### Features
+
+* Builds around [`minipass-fetch`](https://npm.im/minipass-fetch) for the core [`fetch` API](https://fetch.spec.whatwg.org) implementation
+* Request pooling out of the box
+* Quite fast, really
+* Automatic HTTP-semantics-aware request retries
+* Cache-fallback automatic "offline mode"
+* Proxy support (http, https, socks, socks4, socks5)
+* Built-in request caching following full HTTP caching rules (`Cache-Control`, `ETag`, `304`s, cache fallback on error, etc).
+* Customize cache storage with any [Cache API](https://developer.mozilla.org/en-US/docs/Web/API/Cache)-compliant `Cache` instance. Cache to Redis!
+* Node.js Stream support
+* Transparent gzip and deflate support
+* [Subresource Integrity](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity) support
+* Literally punches nazis
+* (PENDING) Range request caching and resuming
+
+### Contributing
+
+The make-fetch-happen team enthusiastically welcomes contributions and project participation! There's a bunch of things you can do if you want to contribute! The [Contributor Guide](https://github.com/npm/cli/blob/latest/CONTRIBUTING.md) outlines the process for community interaction and contribution. Please don't hesitate to jump in if you'd like to, or even ask us questions if something isn't clear.
+
+All participants and maintainers in this project are expected to follow the [npm Code of Conduct](https://www.npmjs.com/policies/conduct), and just generally be excellent to each other.
+
+Please refer to the [Changelog](CHANGELOG.md) for project history details, too.
+
+Happy hacking!
+
+### API
+
+#### <a name="fetch"></a> `> fetch(uriOrRequest, [opts]) -> Promise<Response>`
+
+This function implements most of the [`fetch` API](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch): given a `uri` string or a `Request` instance, it will fire off an http request and return a Promise containing the relevant response.
+
+If `opts` is provided, the [`minipass-fetch`-specific options](#minipass-fetch-options) will be passed to that library. There are also [additional options](#extra-options) specific to make-fetch-happen that add various features, such as HTTP caching, integrity verification, proxy support, and more.
+
+##### Example
+
+```javascript
+fetch('https://google.com').then(res => res.buffer())
+```
+
+#### <a name="fetch-defaults"></a> `> fetch.defaults([defaultUrl], [defaultOpts])`
+
+Returns a new `fetch` function that will call `make-fetch-happen` using `defaultUrl` and `defaultOpts` as default values to any calls.
+
+A defaulted `fetch` will also have a `.defaults()` method, so they can be chained.
+
+##### Example
+
+```javascript
+const fetch = require('make-fetch-happen').defaults({
+  cachePath: './my-local-cache'
+})
+
+fetch('https://registry.npmjs.org/make-fetch-happen') // will always use the cache
+```
+
+#### <a name="minipass-fetch-options"></a> `> minipass-fetch options`
+
+The following options for `minipass-fetch` are used as-is:
+
+* method
+* body
+* redirect
+* follow
+* timeout
+* compress
+* size
+
+These other options are modified or augmented by make-fetch-happen:
+
+* headers - Default `User-Agent` set to make-fetch happen. `Connection` is set to `keep-alive` or `close` automatically depending on `opts.agent`.
+* agent
+  * If agent is null, an http or https Agent will be automatically used. By default, these will be `http.globalAgent` and `https.globalAgent`.
+  * If [`opts.proxy`](#opts-proxy) is provided and `opts.agent` is null, the agent will be set to an appropriate proxy-handling agent.
+  * If `opts.agent` is an object, it will be used as the request-pooling agent argument for this request.
+  * If `opts.agent` is `false`, it will be passed as-is to the underlying request library. This causes a new Agent to be spawned for every request.
+
+For more details, see [the documentation for `minipass-fetch` itself](https://github.com/npm/minipass-fetch#options).
+
+#### <a name="extra-options"></a> `> make-fetch-happen options`
+
+make-fetch-happen augments the `minipass-fetch` API with additional features available through extra options. The following extra options are available:
+
+* [`opts.cachePath`](#opts-cache-path) - Cache target to read/write
+* [`opts.cache`](#opts-cache) - `fetch` cache mode. Controls cache *behavior*.
+* [`opts.proxy`](#opts-proxy) - Proxy agent
+* [`opts.noProxy`](#opts-no-proxy) - Domain segments to disable proxying for.
+* [`opts.ca, opts.cert, opts.key, opts.strictSSL`](#https-opts)
+* [`opts.localAddress`](#opts-local-address)
+* [`opts.maxSockets`](#opts-max-sockets)
+* [`opts.retry`](#opts-retry) - Request retry settings
+* [`opts.onRetry`](#opts-onretry) - a function called whenever a retry is attempted
+* [`opts.integrity`](#opts-integrity) - [Subresource Integrity](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity) metadata.
+
+#### <a name="opts-cache-path"></a> `> opts.cachePath`
+
+A string `Path` to be used as the cache root for [`cacache`](https://npm.im/cacache).
+
+**NOTE**: Requests will not be cached unless their response bodies are consumed. You will need to use one of the `res.json()`, `res.buffer()`, etc methods on the response, or drain the `res.body` stream, in order for it to be written.
+
+The default cache manager also adds the following headers to cached responses:
+
+* `X-Local-Cache`: Path to the cache the content was found in
+* `X-Local-Cache-Key`: Unique cache entry key for this response
+* `X-Local-Cache-Mode`: Either `stream` or `buffer` to indicate how the response was read from cacache
+* `X-Local-Cache-Hash`: Specific integrity hash for the cached entry
+* `X-Local-Cache-Status`: One of `miss`, `hit`, `stale`, `revalidated`, `updated`, or `skip` to signal how the response was created
+* `X-Local-Cache-Time`: UTCString of the cache insertion time for the entry
+
+Using [`cacache`](https://npm.im/cacache), a call like this may be used to
+manually fetch the cached entry:
+
+```javascript
+const h = response.headers
+cacache.get(h.get('x-local-cache'), h.get('x-local-cache-key'))
+
+// grab content only, directly:
+cacache.get.byDigest(h.get('x-local-cache'), h.get('x-local-cache-hash'))
+```
+
+##### Example
+
+```javascript
+fetch('https://registry.npmjs.org/make-fetch-happen', {
+  cachePath: './my-local-cache'
+}) // -> 200-level response will be written to disk
+```
+
+A possible (minimal) implementation for `MyCustomRedisCache`:
+
+```javascript
+const bluebird = require('bluebird')
+const redis = require("redis")
+bluebird.promisifyAll(redis.RedisClient.prototype)
+class MyCustomRedisCache {
+  constructor (opts) {
+    this.redis = redis.createClient(opts)
+  }
+  match (req) {
+    return this.redis.getAsync(req.url).then(res => {
+      if (res) {
+        const parsed = JSON.parse(res)
+        return new fetch.Response(parsed.body, {
+          url: req.url,
+          headers: parsed.headers,
+          status: 200
+        })
+      }
+    })
+  }
+  put (req, res) {
+    return res.buffer().then(body => {
+      return this.redis.setAsync(req.url, JSON.stringify({
+        body: body,
+        headers: res.headers.raw()
+      }))
+    }).then(() => {
+      // return the response itself
+      return res
+    })
+  }
+  'delete' (req) {
+    return this.redis.unlinkAsync(req.url)
+  }
+}
+```
+
+#### <a name="opts-cache"></a> `> opts.cache`
+
+This option follows the standard `fetch` API cache option. This option will do nothing if [`opts.cachePath`](#opts-cache-path) is null. The following values are accepted (as strings):
+
+* `default` - Fetch will inspect the HTTP cache on the way to the network. If there is a fresh response it will be used. If there is a stale response a conditional request will be created, and a normal request otherwise. It then updates the HTTP cache with the response. If the revalidation request fails (for example, on a 500 or if you're offline), the stale response will be returned.
+* `no-store` - Fetch behaves as if there is no HTTP cache at all.
+* `reload` - Fetch behaves as if there is no HTTP cache on the way to the network. Ergo, it creates a normal request and updates the HTTP cache with the response.
+* `no-cache` - Fetch creates a conditional request if there is a response in the HTTP cache and a normal request otherwise. It then updates the HTTP cache with the response.
+* `force-cache` - Fetch uses any response in the HTTP cache matching the request, not paying attention to staleness. If there was no response, it creates a normal request and updates the HTTP cache with the response.
+* `only-if-cached` - Fetch uses any response in the HTTP cache matching the request, not paying attention to staleness. If there was no response, it returns a network error. (Can only be used when request’s mode is "same-origin". Any cached redirects will be followed assuming request’s redirect mode is "follow" and the redirects do not violate request’s mode.)
+
+(Note: option descriptions are taken from https://fetch.spec.whatwg.org/#http-network-or-cache-fetch)
+
+##### Example
+
+```javascript
+const fetch = require('make-fetch-happen').defaults({
+  cachePath: './my-cache'
+})
+
+// Will error with ENOTCACHED if we haven't already cached this url
+fetch('https://registry.npmjs.org/make-fetch-happen', {
+  cache: 'only-if-cached'
+})
+
+// Will refresh any local content and cache the new response
+fetch('https://registry.npmjs.org/make-fetch-happen', {
+  cache: 'reload'
+})
+
+// Will use any local data, even if stale. Otherwise, will hit network.
+fetch('https://registry.npmjs.org/make-fetch-happen', {
+  cache: 'force-cache'
+})
+```
+
+#### <a name="opts-proxy"></a> `> opts.proxy`
+
+A string or `new url.URL()`-d URI to proxy through. Different Proxy handlers will be
+used depending on the proxy's protocol.
+
+Additionally, `process.env.HTTP_PROXY`, `process.env.HTTPS_PROXY`, and
+`process.env.PROXY` are used if present and no `opts.proxy` value is provided.
+
+(Pending) `process.env.NO_PROXY` may also be configured to skip proxying requests for all, or specific domains.
+
+##### Example
+
+```javascript
+fetch('https://registry.npmjs.org/make-fetch-happen', {
+  proxy: 'https://corporate.yourcompany.proxy:4445'
+})
+
+fetch('https://registry.npmjs.org/make-fetch-happen', {
+  proxy: {
+    protocol: 'https:',
+    hostname: 'corporate.yourcompany.proxy',
+    port: 4445
+  }
+})
+```
+
+#### <a name="opts-no-proxy"></a> `> opts.noProxy`
+
+If present, should be a comma-separated string or an array of domain extensions
+that a proxy should _not_ be used for.
+
+This option may also be provided through `process.env.NO_PROXY`.
+
+#### <a name="https-opts"></a> `> opts.ca, opts.cert, opts.key, opts.strictSSL`
+
+These values are passed in directly to the HTTPS agent and will be used for both
+proxied and unproxied outgoing HTTPS requests. They mostly correspond to the
+same options the `https` module accepts, which will be themselves passed to
+`tls.connect()`. `opts.strictSSL` corresponds to `rejectUnauthorized`.
+
+#### <a name="opts-local-address"></a> `> opts.localAddress`
+
+Passed directly to `http` and `https` request calls. Determines the local
+address to bind to.
+
+#### <a name="opts-max-sockets"></a> `> opts.maxSockets`
+
+Default: 15
+
+Maximum number of active concurrent sockets to use for the underlying
+Http/Https/Proxy agents. This setting applies once per spawned agent.
+
+15 is probably a _pretty good value_ for most use-cases, and balances speed
+with, uh, not knocking out people's routers. 🤓
+
+#### <a name="opts-retry"></a> `> opts.retry`
+
+An object that can be used to tune request retry settings. Retries will only be attempted on the following conditions:
+
+* Request method is NOT `POST` AND
+* Request status is one of: `408`, `420`, `429`, or any status in the 500-range. OR
+* Request errored with `ECONNRESET`, `ECONNREFUSED`, `EADDRINUSE`, `ETIMEDOUT`, or the `fetch` error `request-timeout`.
+
+The following are worth noting as explicitly not retried:
+
+* `getaddrinfo ENOTFOUND` and will be assumed to be either an unreachable domain or the user will be assumed offline. If a response is cached, it will be returned immediately.
+
+If `opts.retry` is `false`, it is equivalent to `{retries: 0}`
+
+If `opts.retry` is a number, it is equivalent to `{retries: num}`
+
+The following retry options are available if you want more control over it:
+
+* retries
+* factor
+* minTimeout
+* maxTimeout
+* randomize
+
+For details on what each of these do, refer to the [`retry`](https://npm.im/retry) documentation.
+
+##### Example
+
+```javascript
+fetch('https://flaky.site.com', {
+  retry: {
+    retries: 10,
+    randomize: true
+  }
+})
+
+fetch('http://reliable.site.com', {
+  retry: false
+})
+
+fetch('http://one-more.site.com', {
+  retry: 3
+})
+```
+
+#### <a name="opts-onretry"></a> `> opts.onRetry`
+
+A function called whenever a retry is attempted.
+
+##### Example
+
+```javascript
+fetch('https://flaky.site.com', {
+  onRetry() {
+    console.log('we will retry!')
+  }
+})
+```
+
+#### <a name="opts-integrity"></a> `> opts.integrity`
+
+Matches the response body against the given [Subresource Integrity](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity) metadata. If verification fails, the request will fail with an `EINTEGRITY` error.
+
+`integrity` may either be a string or an [`ssri`](https://npm.im/ssri) `Integrity`-like.
+
+##### Example
+
+```javascript
+fetch('https://registry.npmjs.org/make-fetch-happen/-/make-fetch-happen-1.0.0.tgz', {
+  integrity: 'sha1-o47j7zAYnedYFn1dF/fR9OV3z8Q='
+}) // -> ok
+
+fetch('https://malicious-registry.org/make-fetch-happen/-/make-fetch-happen-1.0.0.tgz', {
+  integrity: 'sha1-o47j7zAYnedYFn1dF/fR9OV3z8Q='
+}) // Error: EINTEGRITY
+```
+
+### <a name="wow"></a> Message From Our Sponsors
+
+![](stop.gif)
+
+![](happening.gif)
diff --git a/node_modules/make-fetch-happen/lib/agent.js b/node_modules/make-fetch-happen/lib/agent.js
new file mode 100644
index 0000000..3675dd8
--- /dev/null
+++ b/node_modules/make-fetch-happen/lib/agent.js
@@ -0,0 +1,194 @@
+'use strict'
+const LRU = require('lru-cache')
+const url = require('url')
+const isLambda = require('is-lambda')
+
+const AGENT_CACHE = new LRU({ max: 50 })
+const HttpAgent = require('agentkeepalive')
+const HttpsAgent = HttpAgent.HttpsAgent
+
+module.exports = getAgent
+
+const getAgentTimeout = timeout =>
+  typeof timeout !== 'number' || !timeout ? 0 : timeout + 1
+
+const getMaxSockets = maxSockets => maxSockets || 15
+
+function getAgent (uri, opts) {
+  const parsedUri = new url.URL(typeof uri === 'string' ? uri : uri.url)
+  const isHttps = parsedUri.protocol === 'https:'
+  const pxuri = getProxyUri(parsedUri.href, opts)
+
+  // If opts.timeout is zero, set the agentTimeout to zero as well. A timeout
+  // of zero disables the timeout behavior (OS limits still apply). Else, if
+  // opts.timeout is a non-zero value, set it to timeout + 1, to ensure that
+  // the node-fetch-npm timeout will always fire first, giving us more
+  // consistent errors.
+  const agentTimeout = getAgentTimeout(opts.timeout)
+  const agentMaxSockets = getMaxSockets(opts.maxSockets)
+
+  const key = [
+    `https:${isHttps}`,
+    pxuri
+      ? `proxy:${pxuri.protocol}//${pxuri.host}:${pxuri.port}`
+      : '>no-proxy<',
+    `local-address:${opts.localAddress || '>no-local-address<'}`,
+    `strict-ssl:${isHttps ? opts.rejectUnauthorized : '>no-strict-ssl<'}`,
+    `ca:${(isHttps && opts.ca) || '>no-ca<'}`,
+    `cert:${(isHttps && opts.cert) || '>no-cert<'}`,
+    `key:${(isHttps && opts.key) || '>no-key<'}`,
+    `timeout:${agentTimeout}`,
+    `maxSockets:${agentMaxSockets}`,
+  ].join(':')
+
+  if (opts.agent != null) { // `agent: false` has special behavior!
+    return opts.agent
+  }
+
+  // keep alive in AWS lambda makes no sense
+  const lambdaAgent = !isLambda ? null
+    : isHttps ? require('https').globalAgent
+    : require('http').globalAgent
+
+  if (isLambda && !pxuri)
+    return lambdaAgent
+
+  if (AGENT_CACHE.peek(key))
+    return AGENT_CACHE.get(key)
+
+  if (pxuri) {
+    const pxopts = isLambda ? {
+      ...opts,
+      agent: lambdaAgent,
+    } : opts
+    const proxy = getProxy(pxuri, pxopts, isHttps)
+    AGENT_CACHE.set(key, proxy)
+    return proxy
+  }
+
+  const agent = isHttps ? new HttpsAgent({
+    maxSockets: agentMaxSockets,
+    ca: opts.ca,
+    cert: opts.cert,
+    key: opts.key,
+    localAddress: opts.localAddress,
+    rejectUnauthorized: opts.rejectUnauthorized,
+    timeout: agentTimeout,
+  }) : new HttpAgent({
+    maxSockets: agentMaxSockets,
+    localAddress: opts.localAddress,
+    timeout: agentTimeout,
+  })
+  AGENT_CACHE.set(key, agent)
+  return agent
+}
+
+function checkNoProxy (uri, opts) {
+  const host = new url.URL(uri).hostname.split('.').reverse()
+  let noproxy = (opts.noProxy || getProcessEnv('no_proxy'))
+  if (typeof noproxy === 'string')
+    noproxy = noproxy.split(/\s*,\s*/g)
+
+  return noproxy && noproxy.some(no => {
+    const noParts = no.split('.').filter(x => x).reverse()
+    if (!noParts.length)
+      return false
+    for (let i = 0; i < noParts.length; i++) {
+      if (host[i] !== noParts[i])
+        return false
+    }
+    return true
+  })
+}
+
+module.exports.getProcessEnv = getProcessEnv
+
+function getProcessEnv (env) {
+  if (!env)
+    return
+
+  let value
+
+  if (Array.isArray(env)) {
+    for (const e of env) {
+      value = process.env[e] ||
+        process.env[e.toUpperCase()] ||
+        process.env[e.toLowerCase()]
+      if (typeof value !== 'undefined')
+        break
+    }
+  }
+
+  if (typeof env === 'string') {
+    value = process.env[env] ||
+      process.env[env.toUpperCase()] ||
+      process.env[env.toLowerCase()]
+  }
+
+  return value
+}
+
+module.exports.getProxyUri = getProxyUri
+function getProxyUri (uri, opts) {
+  const protocol = new url.URL(uri).protocol
+
+  const proxy = opts.proxy ||
+    (
+      protocol === 'https:' &&
+      getProcessEnv('https_proxy')
+    ) ||
+    (
+      protocol === 'http:' &&
+      getProcessEnv(['https_proxy', 'http_proxy', 'proxy'])
+    )
+  if (!proxy)
+    return null
+
+  const parsedProxy = (typeof proxy === 'string') ? new url.URL(proxy) : proxy
+
+  return !checkNoProxy(uri, opts) && parsedProxy
+}
+
+const getAuth = u =>
+  u.username && u.password ? decodeURIComponent(`${u.username}:${u.password}`)
+  : u.username ? decodeURIComponent(u.username)
+  : null
+
+const getPath = u => u.pathname + u.search + u.hash
+
+const HttpProxyAgent = require('http-proxy-agent')
+const HttpsProxyAgent = require('https-proxy-agent')
+const SocksProxyAgent = require('socks-proxy-agent')
+module.exports.getProxy = getProxy
+function getProxy (proxyUrl, opts, isHttps) {
+  const popts = {
+    host: proxyUrl.hostname,
+    port: proxyUrl.port,
+    protocol: proxyUrl.protocol,
+    path: getPath(proxyUrl),
+    auth: getAuth(proxyUrl),
+    ca: opts.ca,
+    cert: opts.cert,
+    key: opts.key,
+    timeout: getAgentTimeout(opts.timeout),
+    localAddress: opts.localAddress,
+    maxSockets: getMaxSockets(opts.maxSockets),
+    rejectUnauthorized: opts.rejectUnauthorized,
+  }
+
+  if (proxyUrl.protocol === 'http:' || proxyUrl.protocol === 'https:') {
+    if (!isHttps)
+      return new HttpProxyAgent(popts)
+    else
+      return new HttpsProxyAgent(popts)
+  } else if (proxyUrl.protocol.startsWith('socks'))
+    return new SocksProxyAgent(popts)
+  else {
+    throw Object.assign(
+      new Error(`unsupported proxy protocol: '${proxyUrl.protocol}'`),
+      {
+        url: proxyUrl.href,
+      }
+    )
+  }
+}
diff --git a/node_modules/make-fetch-happen/lib/cache/entry.js b/node_modules/make-fetch-happen/lib/cache/entry.js
new file mode 100644
index 0000000..a2acea1
--- /dev/null
+++ b/node_modules/make-fetch-happen/lib/cache/entry.js
@@ -0,0 +1,460 @@
+const { Request, Response } = require('minipass-fetch')
+const Minipass = require('minipass')
+const MinipassCollect = require('minipass-collect')
+const MinipassFlush = require('minipass-flush')
+const MinipassPipeline = require('minipass-pipeline')
+const cacache = require('cacache')
+const url = require('url')
+
+const CachePolicy = require('./policy.js')
+const cacheKey = require('./key.js')
+const remote = require('../remote.js')
+
+const hasOwnProperty = (obj, prop) => Object.prototype.hasOwnProperty.call(obj, prop)
+
+// maximum amount of data we will buffer into memory
+// if we'll exceed this, we switch to streaming
+const MAX_MEM_SIZE = 5 * 1024 * 1024 // 5MB
+
+// allow list for request headers that will be written to the cache index
+// note: we will also store any request headers
+// that are named in a response's vary header
+const KEEP_REQUEST_HEADERS = [
+  'accept-charset',
+  'accept-encoding',
+  'accept-language',
+  'accept',
+  'cache-control',
+]
+
+// allow list for response headers that will be written to the cache index
+// note: we must not store the real response's age header, or when we load
+// a cache policy based on the metadata it will think the cached response
+// is always stale
+const KEEP_RESPONSE_HEADERS = [
+  'cache-control',
+  'content-encoding',
+  'content-language',
+  'content-type',
+  'date',
+  'etag',
+  'expires',
+  'last-modified',
+  'location',
+  'pragma',
+  'vary',
+]
+
+// return an object containing all metadata to be written to the index
+const getMetadata = (request, response, options) => {
+  const metadata = {
+    time: Date.now(),
+    url: request.url,
+    reqHeaders: {},
+    resHeaders: {},
+  }
+
+  // only save the status if it's not a 200 or 304
+  if (response.status !== 200 && response.status !== 304)
+    metadata.status = response.status
+
+  for (const name of KEEP_REQUEST_HEADERS) {
+    if (request.headers.has(name))
+      metadata.reqHeaders[name] = request.headers.get(name)
+  }
+
+  // if the request's host header differs from the host in the url
+  // we need to keep it, otherwise it's just noise and we ignore it
+  const host = request.headers.get('host')
+  const parsedUrl = new url.URL(request.url)
+  if (host && parsedUrl.host !== host)
+    metadata.reqHeaders.host = host
+
+  // if the response has a vary header, make sure
+  // we store the relevant request headers too
+  if (response.headers.has('vary')) {
+    const vary = response.headers.get('vary')
+    // a vary of "*" means every header causes a different response.
+    // in that scenario, we do not include any additional headers
+    // as the freshness check will always fail anyway and we don't
+    // want to bloat the cache indexes
+    if (vary !== '*') {
+      // copy any other request headers that will vary the response
+      const varyHeaders = vary.trim().toLowerCase().split(/\s*,\s*/)
+      for (const name of varyHeaders) {
+        // explicitly ignore accept-encoding here
+        if (name !== 'accept-encoding' && request.headers.has(name))
+          metadata.reqHeaders[name] = request.headers.get(name)
+      }
+    }
+  }
+
+  for (const name of KEEP_RESPONSE_HEADERS) {
+    if (response.headers.has(name))
+      metadata.resHeaders[name] = response.headers.get(name)
+  }
+
+  // we only store accept-encoding and content-encoding if the user
+  // has disabled automatic compression and decompression in minipass-fetch
+  // since if it's enabled (the default) then the content will have
+  // already been decompressed making the header a lie
+  if (options.compress === false) {
+    metadata.reqHeaders['accept-encoding'] = request.headers.get('accept-encoding')
+    metadata.resHeaders['content-encoding'] = response.headers.get('content-encoding')
+  }
+
+  return metadata
+}
+
+// symbols used to hide objects that may be lazily evaluated in a getter
+const _request = Symbol('request')
+const _response = Symbol('response')
+const _policy = Symbol('policy')
+
+class CacheEntry {
+  constructor ({ entry, request, response, options }) {
+    if (entry) {
+      this.key = entry.key
+      this.entry = entry
+      // previous versions of this module didn't write an explicit timestamp in
+      // the metadata, so fall back to the entry's timestamp. we can't use the
+      // entry timestamp to determine staleness because cacache will update it
+      // when it verifies its data
+      this.entry.metadata.time = this.entry.metadata.time || this.entry.time
+    } else
+      this.key = cacheKey(request)
+
+    this.options = options
+
+    // these properties are behind getters that lazily evaluate
+    this[_request] = request
+    this[_response] = response
+    this[_policy] = null
+  }
+
+  // returns a CacheEntry instance that satisfies the given request
+  // or undefined if no existing entry satisfies
+  static async find (request, options) {
+    try {
+      // compacts the index and returns an array of unique entries
+      var matches = await cacache.index.compact(options.cachePath, cacheKey(request), (A, B) => {
+        const entryA = new CacheEntry({ entry: A, options })
+        const entryB = new CacheEntry({ entry: B, options })
+        return entryA.policy.satisfies(entryB.request)
+      }, {
+        validateEntry: (entry) => {
+          // if an integrity is null, it needs to have a status specified
+          if (entry.integrity === null)
+            return !!(entry.metadata && entry.metadata.status)
+
+          return true
+        },
+      })
+    } catch (err) {
+      // if the compact request fails, ignore the error and return
+      return
+    }
+
+    // a cache mode of 'reload' means to behave as though we have no cache
+    // on the way to the network. return undefined to allow cacheFetch to
+    // create a brand new request no matter what.
+    if (options.cache === 'reload')
+      return
+
+    // find the specific entry that satisfies the request
+    let match
+    for (const entry of matches) {
+      const _entry = new CacheEntry({
+        entry,
+        options,
+      })
+
+      if (_entry.policy.satisfies(request)) {
+        match = _entry
+        break
+      }
+    }
+
+    return match
+  }
+
+  // if the user made a PUT/POST/PATCH then we invalidate our
+  // cache for the same url by deleting the index entirely
+  static async invalidate (request, options) {
+    const key = cacheKey(request)
+    try {
+      await cacache.rm.entry(options.cachePath, key, { removeFully: true })
+    } catch (err) {
+      // ignore errors
+    }
+  }
+
+  get request () {
+    if (!this[_request]) {
+      this[_request] = new Request(this.entry.metadata.url, {
+        method: 'GET',
+        headers: this.entry.metadata.reqHeaders,
+      })
+    }
+
+    return this[_request]
+  }
+
+  get response () {
+    if (!this[_response]) {
+      this[_response] = new Response(null, {
+        url: this.entry.metadata.url,
+        counter: this.options.counter,
+        status: this.entry.metadata.status || 200,
+        headers: {
+          ...this.entry.metadata.resHeaders,
+          'content-length': this.entry.size,
+        },
+      })
+    }
+
+    return this[_response]
+  }
+
+  get policy () {
+    if (!this[_policy]) {
+      this[_policy] = new CachePolicy({
+        entry: this.entry,
+        request: this.request,
+        response: this.response,
+        options: this.options,
+      })
+    }
+
+    return this[_policy]
+  }
+
+  // wraps the response in a pipeline that stores the data
+  // in the cache while the user consumes it
+  async store (status) {
+    // if we got a status other than 200, 301, or 308,
+    // or the CachePolicy forbid storage, append the
+    // cache status header and return it untouched
+    if (this.request.method !== 'GET' || ![200, 301, 308].includes(this.response.status) || !this.policy.storable()) {
+      this.response.headers.set('x-local-cache-status', 'skip')
+      return this.response
+    }
+
+    const size = this.response.headers.get('content-length')
+    const fitsInMemory = !!size && Number(size) < MAX_MEM_SIZE
+    const shouldBuffer = this.options.memoize !== false && fitsInMemory
+    const cacheOpts = {
+      algorithms: this.options.algorithms,
+      metadata: getMetadata(this.request, this.response, this.options),
+      size,
+      memoize: fitsInMemory && this.options.memoize,
+    }
+
+    let body = null
+    // we only set a body if the status is a 200, redirects are
+    // stored as metadata only
+    if (this.response.status === 200) {
+      let cacheWriteResolve, cacheWriteReject
+      const cacheWritePromise = new Promise((resolve, reject) => {
+        cacheWriteResolve = resolve
+        cacheWriteReject = reject
+      })
+
+      body = new MinipassPipeline(new MinipassFlush({
+        flush () {
+          return cacheWritePromise
+        },
+      }))
+
+      let abortStream, onResume
+      if (shouldBuffer) {
+        // if the result fits in memory, use a collect stream to gather
+        // the response and write it to cacache while also passing it through
+        // to the user
+        onResume = () => {
+          const collector = new MinipassCollect.PassThrough()
+          abortStream = collector
+          collector.on('collect', (data) => {
+            // TODO if the cache write fails, log a warning but return the response anyway
+            cacache.put(this.options.cachePath, this.key, data, cacheOpts).then(cacheWriteResolve, cacheWriteReject)
+          })
+          body.unshift(collector)
+          body.unshift(this.response.body)
+        }
+      } else {
+        // if it does not fit in memory, create a tee stream and use
+        // that to pipe to both the cache and the user simultaneously
+        onResume = () => {
+          const tee = new Minipass()
+          const cacheStream = cacache.put.stream(this.options.cachePath, this.key, cacheOpts)
+          abortStream = cacheStream
+          tee.pipe(cacheStream)
+          // TODO if the cache write fails, log a warning but return the response anyway
+          cacheStream.promise().then(cacheWriteResolve, cacheWriteReject)
+          body.unshift(tee)
+          body.unshift(this.response.body)
+        }
+      }
+
+      body.once('resume', onResume)
+      body.once('end', () => body.removeListener('resume', onResume))
+      this.response.body.on('error', (err) => {
+        // the abortStream will either be a MinipassCollect if we buffer
+        // or a cacache write stream, either way be sure to listen for
+        // errors from the actual response and avoid writing data that we
+        // know to be invalid to the cache
+        abortStream.destroy(err)
+      })
+    } else
+      await cacache.index.insert(this.options.cachePath, this.key, null, cacheOpts)
+
+    // note: we do not set the x-local-cache-hash header because we do not know
+    // the hash value until after the write to the cache completes, which doesn't
+    // happen until after the response has been sent and it's too late to write
+    // the header anyway
+    this.response.headers.set('x-local-cache', encodeURIComponent(this.options.cachePath))
+    this.response.headers.set('x-local-cache-key', encodeURIComponent(this.key))
+    this.response.headers.set('x-local-cache-mode', shouldBuffer ? 'buffer' : 'stream')
+    this.response.headers.set('x-local-cache-status', status)
+    this.response.headers.set('x-local-cache-time', new Date().toISOString())
+    const newResponse = new Response(body, {
+      url: this.response.url,
+      status: this.response.status,
+      headers: this.response.headers,
+      counter: this.options.counter,
+    })
+    return newResponse
+  }
+
+  // use the cached data to create a response and return it
+  async respond (method, options, status) {
+    let response
+    const size = Number(this.response.headers.get('content-length'))
+    const fitsInMemory = !!size && size < MAX_MEM_SIZE
+    const shouldBuffer = this.options.memoize !== false && fitsInMemory
+    if (method === 'HEAD' || [301, 308].includes(this.response.status)) {
+      // if the request is a HEAD, or the response is a redirect,
+      // then the metadata in the entry already includes everything
+      // we need to build a response
+      response = this.response
+    } else {
+      // we're responding with a full cached response, so create a body
+      // that reads from cacache and attach it to a new Response
+      const body = new Minipass()
+      const removeOnResume = () => body.removeListener('resume', onResume)
+      let onResume
+      if (shouldBuffer) {
+        onResume = async () => {
+          removeOnResume()
+          try {
+            const content = await cacache.get.byDigest(this.options.cachePath, this.entry.integrity, { memoize: this.options.memoize })
+            body.end(content)
+          } catch (err) {
+            if (err.code === 'EINTEGRITY')
+              await cacache.rm.content(this.options.cachePath, this.entry.integrity, { memoize: this.options.memoize })
+            if (err.code === 'ENOENT' || err.code === 'EINTEGRITY')
+              await CacheEntry.invalidate(this.request, this.options)
+            body.emit('error', err)
+          }
+        }
+      } else {
+        onResume = () => {
+          const cacheStream = cacache.get.stream.byDigest(this.options.cachePath, this.entry.integrity, { memoize: this.options.memoize })
+          cacheStream.on('error', async (err) => {
+            cacheStream.pause()
+            if (err.code === 'EINTEGRITY')
+              await cacache.rm.content(this.options.cachePath, this.entry.integrity, { memoize: this.options.memoize })
+            if (err.code === 'ENOENT' || err.code === 'EINTEGRITY')
+              await CacheEntry.invalidate(this.request, this.options)
+            body.emit('error', err)
+            cacheStream.resume()
+          })
+          cacheStream.pipe(body)
+        }
+      }
+
+      body.once('resume', onResume)
+      body.once('end', removeOnResume)
+      response = new Response(body, {
+        url: this.entry.metadata.url,
+        counter: options.counter,
+        status: 200,
+        headers: {
+          ...this.policy.responseHeaders(),
+        },
+      })
+    }
+
+    response.headers.set('x-local-cache', encodeURIComponent(this.options.cachePath))
+    response.headers.set('x-local-cache-hash', encodeURIComponent(this.entry.integrity))
+    response.headers.set('x-local-cache-key', encodeURIComponent(this.key))
+    response.headers.set('x-local-cache-mode', shouldBuffer ? 'buffer' : 'stream')
+    response.headers.set('x-local-cache-status', status)
+    response.headers.set('x-local-cache-time', new Date(this.entry.metadata.time).toUTCString())
+    return response
+  }
+
+  // use the provided request along with this cache entry to
+  // revalidate the stored response. returns a response, either
+  // from the cache or from the update
+  async revalidate (request, options) {
+    const revalidateRequest = new Request(request, {
+      headers: this.policy.revalidationHeaders(request),
+    })
+
+    try {
+      // NOTE: be sure to remove the headers property from the
+      // user supplied options, since we have already defined
+      // them on the new request object. if they're still in the
+      // options then those will overwrite the ones from the policy
+      var response = await remote(revalidateRequest, {
+        ...options,
+        headers: undefined,
+      })
+    } catch (err) {
+      // if the network fetch fails, return the stale
+      // cached response unless it has a cache-control
+      // of 'must-revalidate'
+      if (!this.policy.mustRevalidate)
+        return this.respond(request.method, options, 'stale')
+
+      throw err
+    }
+
+    if (this.policy.revalidated(revalidateRequest, response)) {
+      // we got a 304, write a new index to the cache and respond from cache
+      const metadata = getMetadata(request, response, options)
+      // 304 responses do not include headers that are specific to the response data
+      // since they do not include a body, so we copy values for headers that were
+      // in the old cache entry to the new one, if the new metadata does not already
+      // include that header
+      for (const name of KEEP_RESPONSE_HEADERS) {
+        if (!hasOwnProperty(metadata.resHeaders, name) && hasOwnProperty(this.entry.metadata.resHeaders, name))
+          metadata.resHeaders[name] = this.entry.metadata.resHeaders[name]
+      }
+
+      try {
+        await cacache.index.insert(options.cachePath, this.key, this.entry.integrity, {
+          size: this.entry.size,
+          metadata,
+        })
+      } catch (err) {
+        // if updating the cache index fails, we ignore it and
+        // respond anyway
+      }
+      return this.respond(request.method, options, 'revalidated')
+    }
+
+    // if we got a modified response, create a new entry based on it
+    const newEntry = new CacheEntry({
+      request,
+      response,
+      options,
+    })
+
+    // respond with the new entry while writing it to the cache
+    return newEntry.store('updated')
+  }
+}
+
+module.exports = CacheEntry
diff --git a/node_modules/make-fetch-happen/lib/cache/errors.js b/node_modules/make-fetch-happen/lib/cache/errors.js
new file mode 100644
index 0000000..31e97c4
--- /dev/null
+++ b/node_modules/make-fetch-happen/lib/cache/errors.js
@@ -0,0 +1,10 @@
+class NotCachedError extends Error {
+  constructor (url) {
+    super(`request to ${url} failed: cache mode is 'only-if-cached' but no cached response is available.`)
+    this.code = 'ENOTCACHED'
+  }
+}
+
+module.exports = {
+  NotCachedError,
+}
diff --git a/node_modules/make-fetch-happen/lib/cache/index.js b/node_modules/make-fetch-happen/lib/cache/index.js
new file mode 100644
index 0000000..cca93d9
--- /dev/null
+++ b/node_modules/make-fetch-happen/lib/cache/index.js
@@ -0,0 +1,45 @@
+const { NotCachedError } = require('./errors.js')
+const CacheEntry = require('./entry.js')
+const remote = require('../remote.js')
+
+// do whatever is necessary to get a Response and return it
+const cacheFetch = async (request, options) => {
+  // try to find a cached entry that satisfies this request
+  const entry = await CacheEntry.find(request, options)
+  if (!entry) {
+    // no cached result, if the cache mode is 'only-if-cached' that's a failure
+    if (options.cache === 'only-if-cached')
+      throw new NotCachedError(request.url)
+
+    // otherwise, we make a request, store it and return it
+    const response = await remote(request, options)
+    const entry = new CacheEntry({ request, response, options })
+    return entry.store('miss')
+  }
+
+  // we have a cached response that satisfies this request, however if the cache
+  // mode is 'no-cache' then we send the revalidation request no matter what
+  if (options.cache === 'no-cache')
+    return entry.revalidate(request, options)
+
+  // if the cached entry is not stale, or if the cache mode is 'force-cache' or
+  // 'only-if-cached' we can respond with the cached entry. set the status
+  // based on the result of needsRevalidation and respond
+  const _needsRevalidation = entry.policy.needsRevalidation(request)
+  if (options.cache === 'force-cache' ||
+      options.cache === 'only-if-cached' ||
+      !_needsRevalidation)
+    return entry.respond(request.method, options, _needsRevalidation ? 'stale' : 'hit')
+
+  // if we got here, the cache entry is stale so revalidate it
+  return entry.revalidate(request, options)
+}
+
+cacheFetch.invalidate = async (request, options) => {
+  if (!options.cachePath)
+    return
+
+  return CacheEntry.invalidate(request, options)
+}
+
+module.exports = cacheFetch
diff --git a/node_modules/make-fetch-happen/lib/cache/key.js b/node_modules/make-fetch-happen/lib/cache/key.js
new file mode 100644
index 0000000..f7684d5
--- /dev/null
+++ b/node_modules/make-fetch-happen/lib/cache/key.js
@@ -0,0 +1,17 @@
+const { URL, format } = require('url')
+
+// options passed to url.format() when generating a key
+const formatOptions = {
+  auth: false,
+  fragment: false,
+  search: true,
+  unicode: false,
+}
+
+// returns a string to be used as the cache key for the Request
+const cacheKey = (request) => {
+  const parsed = new URL(request.url)
+  return `make-fetch-happen:request-cache:${format(parsed, formatOptions)}`
+}
+
+module.exports = cacheKey
diff --git a/node_modules/make-fetch-happen/lib/cache/policy.js b/node_modules/make-fetch-happen/lib/cache/policy.js
new file mode 100644
index 0000000..e0959f6
--- /dev/null
+++ b/node_modules/make-fetch-happen/lib/cache/policy.js
@@ -0,0 +1,161 @@
+const CacheSemantics = require('http-cache-semantics')
+const Negotiator = require('negotiator')
+const ssri = require('ssri')
+
+// HACK: negotiator lazy loads several of its own modules
+// as a micro optimization. we need to be sure that they're
+// in memory as soon as possible at startup so that we do
+// not try to lazy load them after the directory has been
+// retired during a self update of the npm CLI, we do this
+// by calling all of the methods that trigger a lazy load
+// on a fake instance.
+const preloadNegotiator = new Negotiator({ headers: {} })
+preloadNegotiator.charsets()
+preloadNegotiator.encodings()
+preloadNegotiator.languages()
+preloadNegotiator.mediaTypes()
+
+// options passed to http-cache-semantics constructor
+const policyOptions = {
+  shared: false,
+  ignoreCargoCult: true,
+}
+
+// a fake empty response, used when only testing the
+// request for storability
+const emptyResponse = { status: 200, headers: {} }
+
+// returns a plain object representation of the Request
+const requestObject = (request) => {
+  const _obj = {
+    method: request.method,
+    url: request.url,
+    headers: {},
+  }
+
+  request.headers.forEach((value, key) => {
+    _obj.headers[key] = value
+  })
+
+  return _obj
+}
+
+// returns a plain object representation of the Response
+const responseObject = (response) => {
+  const _obj = {
+    status: response.status,
+    headers: {},
+  }
+
+  response.headers.forEach((value, key) => {
+    _obj.headers[key] = value
+  })
+
+  return _obj
+}
+
+class CachePolicy {
+  constructor ({ entry, request, response, options }) {
+    this.entry = entry
+    this.request = requestObject(request)
+    this.response = responseObject(response)
+    this.options = options
+    this.policy = new CacheSemantics(this.request, this.response, policyOptions)
+
+    if (this.entry) {
+      // if we have an entry, copy the timestamp to the _responseTime
+      // this is necessary because the CacheSemantics constructor forces
+      // the value to Date.now() which means a policy created from a
+      // cache entry is likely to always identify itself as stale
+      this.policy._responseTime = this.entry.metadata.time
+    }
+  }
+
+  // static method to quickly determine if a request alone is storable
+  static storable (request, options) {
+    // no cachePath means no caching
+    if (!options.cachePath)
+      return false
+
+    // user explicitly asked not to cache
+    if (options.cache === 'no-store')
+      return false
+
+    // we only cache GET and HEAD requests
+    if (!['GET', 'HEAD'].includes(request.method))
+      return false
+
+    // otherwise, let http-cache-semantics make the decision
+    // based on the request's headers
+    const policy = new CacheSemantics(requestObject(request), emptyResponse, policyOptions)
+    return policy.storable()
+  }
+
+  // returns true if the policy satisfies the request
+  satisfies (request) {
+    const _req = requestObject(request)
+    if (this.request.headers.host !== _req.headers.host)
+      return false
+
+    const negotiatorA = new Negotiator(this.request)
+    const negotiatorB = new Negotiator(_req)
+
+    if (JSON.stringify(negotiatorA.mediaTypes()) !== JSON.stringify(negotiatorB.mediaTypes()))
+      return false
+
+    if (JSON.stringify(negotiatorA.languages()) !== JSON.stringify(negotiatorB.languages()))
+      return false
+
+    if (JSON.stringify(negotiatorA.encodings()) !== JSON.stringify(negotiatorB.encodings()))
+      return false
+
+    if (this.options.integrity)
+      return ssri.parse(this.options.integrity).match(this.entry.integrity)
+
+    return true
+  }
+
+  // returns true if the request and response allow caching
+  storable () {
+    return this.policy.storable()
+  }
+
+  // NOTE: this is a hack to avoid parsing the cache-control
+  // header ourselves, it returns true if the response's
+  // cache-control contains must-revalidate
+  get mustRevalidate () {
+    return !!this.policy._rescc['must-revalidate']
+  }
+
+  // returns true if the cached response requires revalidation
+  // for the given request
+  needsRevalidation (request) {
+    const _req = requestObject(request)
+    // force method to GET because we only cache GETs
+    // but can serve a HEAD from a cached GET
+    _req.method = 'GET'
+    return !this.policy.satisfiesWithoutRevalidation(_req)
+  }
+
+  responseHeaders () {
+    return this.policy.responseHeaders()
+  }
+
+  // returns a new object containing the appropriate headers
+  // to send a revalidation request
+  revalidationHeaders (request) {
+    const _req = requestObject(request)
+    return this.policy.revalidationHeaders(_req)
+  }
+
+  // returns true if the request/response was revalidated
+  // successfully. returns false if a new response was received
+  revalidated (request, response) {
+    const _req = requestObject(request)
+    const _res = responseObject(response)
+    const policy = this.policy.revalidatedPolicy(_req, _res)
+    return !policy.modified
+  }
+}
+
+module.exports = CachePolicy
diff --git a/node_modules/make-fetch-happen/lib/fetch.js b/node_modules/make-fetch-happen/lib/fetch.js
new file mode 100644
index 0000000..dfded79
--- /dev/null
+++ b/node_modules/make-fetch-happen/lib/fetch.js
@@ -0,0 +1,100 @@
+'use strict'
+
+const { FetchError, Request, isRedirect } = require('minipass-fetch')
+const url = require('url')
+
+const CachePolicy = require('./cache/policy.js')
+const cache = require('./cache/index.js')
+const remote = require('./remote.js')
+
+// given a Request, a Response and user options
+// return true if the response is a redirect that
+// can be followed. we throw errors that will result
+// in the fetch being rejected if the redirect is
+// possible but invalid for some reason
+const canFollowRedirect = (request, response, options) => {
+  if (!isRedirect(response.status))
+    return false
+
+  if (options.redirect === 'manual')
+    return false
+
+  if (options.redirect === 'error')
+    throw new FetchError(`redirect mode is set to error: ${request.url}`, 'no-redirect', { code: 'ENOREDIRECT' })
+
+  if (!response.headers.has('location'))
+    throw new FetchError(`redirect location header missing for: ${request.url}`, 'no-location', { code: 'EINVALIDREDIRECT' })
+
+  if (request.counter >= request.follow)
+    throw new FetchError(`maximum redirect reached at: ${request.url}`, 'max-redirect', { code: 'EMAXREDIRECT' })
+
+  return true
+}
+
+// given a Request, a Response, and the user's options return an object
+// with a new Request and a new options object that will be used for
+// following the redirect
+const getRedirect = (request, response, options) => {
+  const _opts = { ...options }
+  const location = response.headers.get('location')
+  const redirectUrl = new url.URL(location, /^https?:/.test(location) ? undefined : request.url)
+  // Comment below is used under the following license:
+  // Copyright (c) 2010-2012 Mikeal Rogers
+  // Licensed under the Apache License, Version 2.0 (the "License");
+  // you may not use this file except in compliance with the License.
+  // You may obtain a copy of the License at
+  // http://www.apache.org/licenses/LICENSE-2.0
+  // Unless required by applicable law or agreed to in writing,
+  // software distributed under the License is distributed on an "AS
+  // IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+  // express or implied. See the License for the specific language
+  // governing permissions and limitations under the License.
+
+  // Remove authorization if changing hostnames (but not if just
+  // changing ports or protocols).  This matches the behavior of request:
+  // https://github.com/request/request/blob/b12a6245/lib/redirect.js#L134-L138
+  if (new url.URL(request.url).hostname !== redirectUrl.hostname)
+    request.headers.delete('authorization')
+
+  // for POST request with 301/302 response, or any request with 303 response,
+  // use GET when following redirect
+  if (response.status === 303 || (request.method === 'POST' && [301, 302].includes(response.status))) {
+    _opts.method = 'GET'
+    _opts.body = null
+    request.headers.delete('content-length')
+  }
+
+  _opts.headers = {}
+  request.headers.forEach((value, key) => {
+    _opts.headers[key] = value
+  })
+
+  _opts.counter = ++request.counter
+  const redirectReq = new Request(url.format(redirectUrl), _opts)
+  return {
+    request: redirectReq,
+    options: _opts,
+  }
+}
+
+const fetch = async (request, options) => {
+  const response = CachePolicy.storable(request, options)
+    ? await cache(request, options)
+    : await remote(request, options)
+
+  // if the request wasn't a GET or HEAD, and the response
+  // status is between 200 and 399 inclusive, invalidate the
+  // request url
+  if (!['GET', 'HEAD'].includes(request.method) &&
+      response.status >= 200 &&
+      response.status <= 399)
+    await cache.invalidate(request, options)
+
+  if (!canFollowRedirect(request, response, options))
+    return response
+
+  const redirect = getRedirect(request, response, options)
+  return fetch(redirect.request, redirect.options)
+}
+
+module.exports = fetch
diff --git a/node_modules/make-fetch-happen/lib/index.js b/node_modules/make-fetch-happen/lib/index.js
new file mode 100644
index 0000000..6028bc0
--- /dev/null
+++ b/node_modules/make-fetch-happen/lib/index.js
@@ -0,0 +1,40 @@
+const { FetchError, Headers, Request, Response } = require('minipass-fetch')
+
+const configureOptions = require('./options.js')
+const fetch = require('./fetch.js')
+
+const makeFetchHappen = (url, opts) => {
+  const options = configureOptions(opts)
+
+  const request = new Request(url, options)
+  return fetch(request, options)
+}
+
+makeFetchHappen.defaults = (defaultUrl, defaultOptions = {}) => {
+  if (typeof defaultUrl === 'object') {
+    defaultOptions = defaultUrl
+    defaultUrl = null
+  }
+
+  const defaultedFetch = (url, options = {}) => {
+    const finalUrl = url || defaultUrl
+    const finalOptions = {
+      ...defaultOptions,
+      ...options,
+      headers: {
+        ...defaultOptions.headers,
+        ...options.headers,
+      },
+    }
+    return makeFetchHappen(finalUrl, finalOptions)
+  }
+
+  defaultedFetch.defaults = makeFetchHappen.defaults
+  return defaultedFetch
+}
+
+module.exports = makeFetchHappen
+module.exports.FetchError = FetchError
+module.exports.Headers = Headers
+module.exports.Request = Request
+module.exports.Response = Response
diff --git a/node_modules/make-fetch-happen/lib/options.js b/node_modules/make-fetch-happen/lib/options.js
new file mode 100644
index 0000000..f6138e6
--- /dev/null
+++ b/node_modules/make-fetch-happen/lib/options.js
@@ -0,0 +1,44 @@
+const conditionalHeaders = [
+  'if-modified-since',
+  'if-none-match',
+  'if-unmodified-since',
+  'if-match',
+  'if-range',
+]
+
+const configureOptions = (opts) => {
+  const {strictSSL, ...options} = { ...opts }
+  options.method = options.method ? options.method.toUpperCase() : 'GET'
+  options.rejectUnauthorized = strictSSL !== false
+
+  if (!options.retry)
+    options.retry = { retries: 0 }
+  else if (typeof options.retry === 'string') {
+    const retries = parseInt(options.retry, 10)
+    if (isFinite(retries))
+      options.retry = { retries }
+    else
+      options.retry = { retries: 0 }
+  } else if (typeof options.retry === 'number')
+    options.retry = { retries: options.retry }
+  else
+    options.retry = { retries: 0, ...options.retry }
+
+  options.cache = options.cache || 'default'
+  if (options.cache === 'default') {
+    const hasConditionalHeader = Object.keys(options.headers || {}).some((name) => {
+      return conditionalHeaders.includes(name.toLowerCase())
+    })
+    if (hasConditionalHeader)
+      options.cache = 'no-store'
+  }
+
+  // cacheManager is deprecated, but if it's set and
+  // cachePath is not we should copy it to the new field
+  if (options.cacheManager && !options.cachePath)
+    options.cachePath = options.cacheManager
+
+  return options
+}
+
+module.exports = configureOptions
diff --git a/node_modules/make-fetch-happen/lib/remote.js b/node_modules/make-fetch-happen/lib/remote.js
new file mode 100644
index 0000000..7e4ed24
--- /dev/null
+++ b/node_modules/make-fetch-happen/lib/remote.js
@@ -0,0 +1,102 @@
+const Minipass = require('minipass')
+const MinipassPipeline = require('minipass-pipeline')
+const fetch = require('minipass-fetch')
+const promiseRetry = require('promise-retry')
+const ssri = require('ssri')
+
+const getAgent = require('./agent.js')
+const pkg = require('../package.json')
+
+const USER_AGENT = `${pkg.name}/${pkg.version} (+https://npm.im/${pkg.name})`
+
+const RETRY_ERRORS = [
+  'ECONNRESET', // remote socket closed on us
+  'ECONNREFUSED', // remote host refused to open connection
+  'EADDRINUSE', // failed to bind to a local port (proxy?)
+  'ETIMEDOUT', // someone in the transaction is WAY TOO SLOW
+  'ERR_SOCKET_TIMEOUT', // same as above, but this one comes from agentkeepalive
+  // Known codes we do NOT retry on:
+  // ENOTFOUND (getaddrinfo failure. Either bad hostname, or offline)
+]
+
+const RETRY_TYPES = [
+  'request-timeout',
+]
+
+// make a request directly to the remote source,
+// retrying certain classes of errors as well as
+// following redirects (through the cache if necessary)
+// and verifying response integrity
+const remoteFetch = (request, options) => {
+  const agent = getAgent(request.url, options)
+  if (!request.headers.has('connection'))
+    request.headers.set('connection', agent ? 'keep-alive' : 'close')
+
+  if (!request.headers.has('user-agent'))
+    request.headers.set('user-agent', USER_AGENT)
+
+  // keep our own options since we're overriding the agent
+  // and the redirect mode
+  const _opts = {
+    ...options,
+    agent,
+    redirect: 'manual',
+  }
+
+  return promiseRetry(async (retryHandler, attemptNum) => {
+    const req = new fetch.Request(request, _opts)
+    try {
+      let res = await fetch(req, _opts)
+      if (_opts.integrity && res.status === 200) {
+        // we got a 200 response and the user has specified an expected
+        // integrity value, so wrap the response in an ssri stream to verify it
+        const integrityStream = ssri.integrityStream({ integrity: _opts.integrity })
+        res = new fetch.Response(new MinipassPipeline(res.body, integrityStream), res)
+      }
+
+      res.headers.set('x-fetch-attempts', attemptNum)
+
+      // do not retry POST requests, or requests with a streaming body
+      // do retry requests with a 408, 420, 429 or 500+ status in the response
+      const isStream = Minipass.isStream(req.body)
+      const isRetriable = req.method !== 'POST' &&
+          !isStream &&
+          ([408, 420, 429].includes(res.status) || res.status >= 500)
+
+      if (isRetriable) {
+        if (typeof options.onRetry === 'function')
+          options.onRetry(res)
+
+        return retryHandler(res)
+      }
+
+      return res
+    } catch (err) {
+      const code = (err.code === 'EPROMISERETRY')
+        ? err.retried.code
+        : err.code
+
+      // err.retried will be the thing that was thrown from above
+      // if it's a response, we just got a bad status code and we
+      // can re-throw to allow the retry
+      const isRetryError = err.retried instanceof fetch.Response ||
+        (RETRY_ERRORS.includes(code) && RETRY_TYPES.includes(err.type))
+
+      if (req.method === 'POST' || isRetryError)
+        throw err
+
+      if (typeof options.onRetry === 'function')
+        options.onRetry(err)
+
+      return retryHandler(err)
+    }
+  }, options.retry).catch((err) => {
+    // don't reject for http errors, just return them
+    if (err.status >= 400 && err.type !== 'system')
+      return err
+
+    throw err
+  })
+}
+
+module.exports = remoteFetch
diff --git a/node_modules/make-fetch-happen/package.json b/node_modules/make-fetch-happen/package.json
new file mode 100644
index 0000000..dae7b37
--- /dev/null
+++ b/node_modules/make-fetch-happen/package.json
@@ -0,0 +1,76 @@
+{
+  "name": "make-fetch-happen",
+  "version": "9.1.0",
+  "description": "Opinionated, caching, retrying fetch client",
+  "main": "lib/index.js",
+  "files": [
+    "lib"
+  ],
+  "scripts": {
+    "preversion": "npm t",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push --follow-tags",
+    "test": "tap",
+    "posttest": "npm run lint",
+    "eslint": "eslint",
+    "lint": "npm run eslint -- lib test",
+    "lintfix": "npm run lint -- --fix"
+  },
+  "repository": "https://github.com/npm/make-fetch-happen",
+  "keywords": [
+    "http",
+    "request",
+    "fetch",
+    "mean girls",
+    "caching",
+    "cache",
+    "subresource integrity"
+  ],
+  "author": {
+    "name": "Kat Marchán",
+    "email": "kzm@zkat.tech",
+    "twitter": "maybekatz"
+  },
+  "license": "ISC",
+  "dependencies": {
+    "agentkeepalive": "^4.1.3",
+    "cacache": "^15.2.0",
+    "http-cache-semantics": "^4.1.0",
+    "http-proxy-agent": "^4.0.1",
+    "https-proxy-agent": "^5.0.0",
+    "is-lambda": "^1.0.1",
+    "lru-cache": "^6.0.0",
+    "minipass": "^3.1.3",
+    "minipass-collect": "^1.0.2",
+    "minipass-fetch": "^1.3.2",
+    "minipass-flush": "^1.0.5",
+    "minipass-pipeline": "^1.2.4",
+    "negotiator": "^0.6.2",
+    "promise-retry": "^2.0.1",
+    "socks-proxy-agent": "^6.0.0",
+    "ssri": "^8.0.0"
+  },
+  "devDependencies": {
+    "eslint": "^7.26.0",
+    "eslint-plugin-import": "^2.23.2",
+    "eslint-plugin-node": "^11.1.0",
+    "eslint-plugin-promise": "^5.1.0",
+    "eslint-plugin-standard": "^5.0.0",
+    "mkdirp": "^1.0.4",
+    "nock": "^13.0.11",
+    "npmlog": "^5.0.0",
+    "require-inject": "^1.4.2",
+    "rimraf": "^3.0.2",
+    "safe-buffer": "^5.2.1",
+    "standard-version": "^9.3.0",
+    "tap": "^15.0.9"
+  },
+  "engines": {
+    "node": ">= 10"
+  },
+  "tap": {
+    "color": 1,
+    "files": "test/*.js",
+    "check-coverage": true
+  }
+}
diff --git a/node_modules/minimatch/LICENSE b/node_modules/minimatch/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/minimatch/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/minimatch/README.md b/node_modules/minimatch/README.md
new file mode 100644
index 0000000..33ede1d
--- /dev/null
+++ b/node_modules/minimatch/README.md
@@ -0,0 +1,230 @@
+# minimatch
+
+A minimal matching utility.
+
+[![Build Status](https://travis-ci.org/isaacs/minimatch.svg?branch=master)](http://travis-ci.org/isaacs/minimatch)
+
+
+This is the matching library used internally by npm.
+
+It works by converting glob expressions into JavaScript `RegExp`
+objects.
+
+## Usage
+
+```javascript
+var minimatch = require("minimatch")
+
+minimatch("bar.foo", "*.foo") // true!
+minimatch("bar.foo", "*.bar") // false!
+minimatch("bar.foo", "*.+(bar|foo)", { debug: true }) // true, and noisy!
+```
+
+## Features
+
+Supports these glob features:
+
+* Brace Expansion
+* Extended glob matching
+* "Globstar" `**` matching
+
+See:
+
+* `man sh`
+* `man bash`
+* `man 3 fnmatch`
+* `man 5 gitignore`
+
+## Minimatch Class
+
+Create a minimatch object by instantiating the `minimatch.Minimatch` class.
+
+```javascript
+var Minimatch = require("minimatch").Minimatch
+var mm = new Minimatch(pattern, options)
+```
+
+### Properties
+
+* `pattern` The original pattern the minimatch object represents.
+* `options` The options supplied to the constructor.
+* `set` A 2-dimensional array of regexp or string expressions.
+  Each row in the
+  array corresponds to a brace-expanded pattern.  Each item in the row
+  corresponds to a single path-part.  For example, the pattern
+  `{a,b/c}/d` would expand to a set of patterns like:
+
+        [ [ a, d ]
+        , [ b, c, d ] ]
+
+    If a portion of the pattern doesn't have any "magic" in it
+    (that is, it's something like `"foo"` rather than `fo*o?`), then it
+    will be left as a string rather than converted to a regular
+    expression.
+
+* `regexp` Created by the `makeRe` method.  A single regular expression
+  expressing the entire pattern.  This is useful in cases where you wish
+  to use the pattern somewhat like `fnmatch(3)` with `FNM_PATH` enabled.
+* `negate` True if the pattern is negated.
+* `comment` True if the pattern is a comment.
+* `empty` True if the pattern is `""`.
+
+### Methods
+
+* `makeRe` Generate the `regexp` member if necessary, and return it.
+  Will return `false` if the pattern is invalid.
+* `match(fname)` Return true if the filename matches the pattern, or
+  false otherwise.
+* `matchOne(fileArray, patternArray, partial)` Take a `/`-split
+  filename, and match it against a single row in the `regExpSet`.  This
+  method is mainly for internal use, but is exposed so that it can be
+  used by a glob-walker that needs to avoid excessive filesystem calls.
+
+All other methods are internal, and will be called as necessary.
+
+### minimatch(path, pattern, options)
+
+Main export.  Tests a path against the pattern using the options.
+
+```javascript
+var isJS = minimatch(file, "*.js", { matchBase: true })
+```
+
+### minimatch.filter(pattern, options)
+
+Returns a function that tests its
+supplied argument, suitable for use with `Array.filter`.  Example:
+
+```javascript
+var javascripts = fileList.filter(minimatch.filter("*.js", {matchBase: true}))
+```
+
+### minimatch.match(list, pattern, options)
+
+Match against the list of
+files, in the style of fnmatch or glob.  If nothing is matched, and
+options.nonull is set, then return a list containing the pattern itself.
+
+```javascript
+var javascripts = minimatch.match(fileList, "*.js", {matchBase: true}))
+```
+
+### minimatch.makeRe(pattern, options)
+
+Make a regular expression object from the pattern.
+
+## Options
+
+All options are `false` by default.
+
+### debug
+
+Dump a ton of stuff to stderr.
+
+### nobrace
+
+Do not expand `{a,b}` and `{1..3}` brace sets.
+
+### noglobstar
+
+Disable `**` matching against multiple folder names.
+
+### dot
+
+Allow patterns to match filenames starting with a period, even if
+the pattern does not explicitly have a period in that spot.
+
+Note that by default, `a/**/b` will **not** match `a/.d/b`, unless `dot`
+is set.
+
+### noext
+
+Disable "extglob" style patterns like `+(a|b)`.
+
+### nocase
+
+Perform a case-insensitive match.
+
+### nonull
+
+When a match is not found by `minimatch.match`, return a list containing
+the pattern itself if this option is set.  When not set, an empty list
+is returned if there are no matches.
+
+### matchBase
+
+If set, then patterns without slashes will be matched
+against the basename of the path if it contains slashes.  For example,
+`a?b` would match the path `/xyz/123/acb`, but not `/xyz/acb/123`.
+
+### nocomment
+
+Suppress the behavior of treating `#` at the start of a pattern as a
+comment.
+
+### nonegate
+
+Suppress the behavior of treating a leading `!` character as negation.
+
+### flipNegate
+
+Returns from negate expressions the same as if they were not negated.
+(Ie, true on a hit, false on a miss.)
+
+### partial
+
+Compare a partial path to a pattern.  As long as the parts of the path that
+are present are not contradicted by the pattern, it will be treated as a
+match.  This is useful in applications where you're walking through a
+folder structure, and don't yet have the full path, but want to ensure that
+you do not walk down paths that can never be a match.
+
+For example,
+
+```js
+minimatch('/a/b', '/a/*/c/d', { partial: true })  // true, might be /a/b/c/d
+minimatch('/a/b', '/**/d', { partial: true })     // true, might be /a/b/.../d
+minimatch('/x/y/z', '/a/**/z', { partial: true }) // false, because x !== a
+```
+
+### allowWindowsEscape
+
+Windows path separator `\` is by default converted to `/`, which
+prohibits the usage of `\` as a escape character. This flag skips that
+behavior and allows using the escape character.
+
+## Comparisons to other fnmatch/glob implementations
+
+While strict compliance with the existing standards is a worthwhile
+goal, some discrepancies exist between minimatch and other
+implementations, and are intentional.
+
+If the pattern starts with a `!` character, then it is negated.  Set the
+`nonegate` flag to suppress this behavior, and treat leading `!`
+characters normally.  This is perhaps relevant if you wish to start the
+pattern with a negative extglob pattern like `!(a|B)`.  Multiple `!`
+characters at the start of a pattern will negate the pattern multiple
+times.
+
+If a pattern starts with `#`, then it is treated as a comment, and
+will not match anything.  Use `\#` to match a literal `#` at the
+start of a line, or set the `nocomment` flag to suppress this behavior.
+
+The double-star character `**` is supported by default, unless the
+`noglobstar` flag is set.  This is supported in the manner of bsdglob
+and bash 4.1, where `**` only has special significance if it is the only
+thing in a path part.  That is, `a/**/b` will match `a/x/y/b`, but
+`a/**b` will not.
+
+If an escaped pattern has no matches, and the `nonull` flag is set,
+then minimatch.match returns the pattern as-provided, rather than
+interpreting the character escapes.  For example,
+`minimatch.match([], "\\*a\\?")` will return `"\\*a\\?"` rather than
+`"*a?"`.  This is akin to setting the `nullglob` option in bash, except
+that it does not resolve escaped pattern characters.
+
+If brace expansion is not disabled, then it is performed before any
+other interpretation of the glob pattern.  Thus, a pattern like
+`+(a|{b),c)}`, which would not be valid in bash or zsh, is expanded
+**first** into the set of `+(a|b)` and `+(a|c)`, and those patterns are
+checked for validity.  Since those two are valid, matching proceeds.
diff --git a/node_modules/minimatch/minimatch.js b/node_modules/minimatch/minimatch.js
new file mode 100644
index 0000000..fda45ad
--- /dev/null
+++ b/node_modules/minimatch/minimatch.js
@@ -0,0 +1,947 @@
+module.exports = minimatch
+minimatch.Minimatch = Minimatch
+
+var path = (function () { try { return require('path') } catch (e) {}}()) || {
+  sep: '/'
+}
+minimatch.sep = path.sep
+
+var GLOBSTAR = minimatch.GLOBSTAR = Minimatch.GLOBSTAR = {}
+var expand = require('brace-expansion')
+
+var plTypes = {
+  '!': { open: '(?:(?!(?:', close: '))[^/]*?)'},
+  '?': { open: '(?:', close: ')?' },
+  '+': { open: '(?:', close: ')+' },
+  '*': { open: '(?:', close: ')*' },
+  '@': { open: '(?:', close: ')' }
+}
+
+// any single thing other than /
+// don't need to escape / when using new RegExp()
+var qmark = '[^/]'
+
+// * => any number of characters
+var star = qmark + '*?'
+
+// ** when dots are allowed.  Anything goes, except .. and .
+// not (^ or / followed by one or two dots followed by $ or /),
+// followed by anything, any number of times.
+var twoStarDot = '(?:(?!(?:\\\/|^)(?:\\.{1,2})($|\\\/)).)*?'
+
+// not a ^ or / followed by a dot,
+// followed by anything, any number of times.
+var twoStarNoDot = '(?:(?!(?:\\\/|^)\\.).)*?'
+
+// characters that need to be escaped in RegExp.
+var reSpecials = charSet('().*{}+?[]^$\\!')
+
+// "abc" -> { a:true, b:true, c:true }
+function charSet (s) {
+  return s.split('').reduce(function (set, c) {
+    set[c] = true
+    return set
+  }, {})
+}
+
+// normalizes slashes.
+var slashSplit = /\/+/
+
+minimatch.filter = filter
+function filter (pattern, options) {
+  options = options || {}
+  return function (p, i, list) {
+    return minimatch(p, pattern, options)
+  }
+}
+
+function ext (a, b) {
+  b = b || {}
+  var t = {}
+  Object.keys(a).forEach(function (k) {
+    t[k] = a[k]
+  })
+  Object.keys(b).forEach(function (k) {
+    t[k] = b[k]
+  })
+  return t
+}
+
+minimatch.defaults = function (def) {
+  if (!def || typeof def !== 'object' || !Object.keys(def).length) {
+    return minimatch
+  }
+
+  var orig = minimatch
+
+  var m = function minimatch (p, pattern, options) {
+    return orig(p, pattern, ext(def, options))
+  }
+
+  m.Minimatch = function Minimatch (pattern, options) {
+    return new orig.Minimatch(pattern, ext(def, options))
+  }
+  m.Minimatch.defaults = function defaults (options) {
+    return orig.defaults(ext(def, options)).Minimatch
+  }
+
+  m.filter = function filter (pattern, options) {
+    return orig.filter(pattern, ext(def, options))
+  }
+
+  m.defaults = function defaults (options) {
+    return orig.defaults(ext(def, options))
+  }
+
+  m.makeRe = function makeRe (pattern, options) {
+    return orig.makeRe(pattern, ext(def, options))
+  }
+
+  m.braceExpand = function braceExpand (pattern, options) {
+    return orig.braceExpand(pattern, ext(def, options))
+  }
+
+  m.match = function (list, pattern, options) {
+    return orig.match(list, pattern, ext(def, options))
+  }
+
+  return m
+}
+
+Minimatch.defaults = function (def) {
+  return minimatch.defaults(def).Minimatch
+}
+
+function minimatch (p, pattern, options) {
+  assertValidPattern(pattern)
+
+  if (!options) options = {}
+
+  // shortcut: comments match nothing.
+  if (!options.nocomment && pattern.charAt(0) === '#') {
+    return false
+  }
+
+  return new Minimatch(pattern, options).match(p)
+}
+
+function Minimatch (pattern, options) {
+  if (!(this instanceof Minimatch)) {
+    return new Minimatch(pattern, options)
+  }
+
+  assertValidPattern(pattern)
+
+  if (!options) options = {}
+
+  pattern = pattern.trim()
+
+  // windows support: need to use /, not \
+  if (!options.allowWindowsEscape && path.sep !== '/') {
+    pattern = pattern.split(path.sep).join('/')
+  }
+
+  this.options = options
+  this.set = []
+  this.pattern = pattern
+  this.regexp = null
+  this.negate = false
+  this.comment = false
+  this.empty = false
+  this.partial = !!options.partial
+
+  // make the set of regexps etc.
+  this.make()
+}
+
+Minimatch.prototype.debug = function () {}
+
+Minimatch.prototype.make = make
+function make () {
+  var pattern = this.pattern
+  var options = this.options
+
+  // empty patterns and comments match nothing.
+  if (!options.nocomment && pattern.charAt(0) === '#') {
+    this.comment = true
+    return
+  }
+  if (!pattern) {
+    this.empty = true
+    return
+  }
+
+  // step 1: figure out negation, etc.
+  this.parseNegate()
+
+  // step 2: expand braces
+  var set = this.globSet = this.braceExpand()
+
+  if (options.debug) this.debug = function debug() { console.error.apply(console, arguments) }
+
+  this.debug(this.pattern, set)
+
+  // step 3: now we have a set, so turn each one into a series of path-portion
+  // matching patterns.
+  // These will be regexps, except in the case of "**", which is
+  // set to the GLOBSTAR object for globstar behavior,
+  // and will not contain any / characters
+  set = this.globParts = set.map(function (s) {
+    return s.split(slashSplit)
+  })
+
+  this.debug(this.pattern, set)
+
+  // glob --> regexps
+  set = set.map(function (s, si, set) {
+    return s.map(this.parse, this)
+  }, this)
+
+  this.debug(this.pattern, set)
+
+  // filter out everything that didn't compile properly.
+  set = set.filter(function (s) {
+    return s.indexOf(false) === -1
+  })
+
+  this.debug(this.pattern, set)
+
+  this.set = set
+}
+
+Minimatch.prototype.parseNegate = parseNegate
+function parseNegate () {
+  var pattern = this.pattern
+  var negate = false
+  var options = this.options
+  var negateOffset = 0
+
+  if (options.nonegate) return
+
+  for (var i = 0, l = pattern.length
+    ; i < l && pattern.charAt(i) === '!'
+    ; i++) {
+    negate = !negate
+    negateOffset++
+  }
+
+  if (negateOffset) this.pattern = pattern.substr(negateOffset)
+  this.negate = negate
+}
+
+// Brace expansion:
+// a{b,c}d -> abd acd
+// a{b,}c -> abc ac
+// a{0..3}d -> a0d a1d a2d a3d
+// a{b,c{d,e}f}g -> abg acdfg acefg
+// a{b,c}d{e,f}g -> abdeg acdeg abdeg abdfg
+//
+// Invalid sets are not expanded.
+// a{2..}b -> a{2..}b
+// a{b}c -> a{b}c
+minimatch.braceExpand = function (pattern, options) {
+  return braceExpand(pattern, options)
+}
+
+Minimatch.prototype.braceExpand = braceExpand
+
+function braceExpand (pattern, options) {
+  if (!options) {
+    if (this instanceof Minimatch) {
+      options = this.options
+    } else {
+      options = {}
+    }
+  }
+
+  pattern = typeof pattern === 'undefined'
+    ? this.pattern : pattern
+
+  assertValidPattern(pattern)
+
+  // Thanks to Yeting Li <https://github.com/yetingli> for
+  // improving this regexp to avoid a ReDOS vulnerability.
+  if (options.nobrace || !/\{(?:(?!\{).)*\}/.test(pattern)) {
+    // shortcut. no need to expand.
+    return [pattern]
+  }
+
+  return expand(pattern)
+}
+
+var MAX_PATTERN_LENGTH = 1024 * 64
+var assertValidPattern = function (pattern) {
+  if (typeof pattern !== 'string') {
+    throw new TypeError('invalid pattern')
+  }
+
+  if (pattern.length > MAX_PATTERN_LENGTH) {
+    throw new TypeError('pattern is too long')
+  }
+}
+
+// parse a component of the expanded set.
+// At this point, no pattern may contain "/" in it
+// so we're going to return a 2d array, where each entry is the full
+// pattern, split on '/', and then turned into a regular expression.
+// A regexp is made at the end which joins each array with an
+// escaped /, and another full one which joins each regexp with |.
+//
+// Following the lead of Bash 4.1, note that "**" only has special meaning
+// when it is the *only* thing in a path portion.  Otherwise, any series
+// of * is equivalent to a single *.  Globstar behavior is enabled by
+// default, and can be disabled by setting options.noglobstar.
+Minimatch.prototype.parse = parse
+var SUBPARSE = {}
+function parse (pattern, isSub) {
+  assertValidPattern(pattern)
+
+  var options = this.options
+
+  // shortcuts
+  if (pattern === '**') {
+    if (!options.noglobstar)
+      return GLOBSTAR
+    else
+      pattern = '*'
+  }
+  if (pattern === '') return ''
+
+  var re = ''
+  var hasMagic = !!options.nocase
+  var escaping = false
+  // ? => one single character
+  var patternListStack = []
+  var negativeLists = []
+  var stateChar
+  var inClass = false
+  var reClassStart = -1
+  var classStart = -1
+  // . and .. never match anything that doesn't start with .,
+  // even when options.dot is set.
+  var patternStart = pattern.charAt(0) === '.' ? '' // anything
+  // not (start or / followed by . or .. followed by / or end)
+  : options.dot ? '(?!(?:^|\\\/)\\.{1,2}(?:$|\\\/))'
+  : '(?!\\.)'
+  var self = this
+
+  function clearStateChar () {
+    if (stateChar) {
+      // we had some state-tracking character
+      // that wasn't consumed by this pass.
+      switch (stateChar) {
+        case '*':
+          re += star
+          hasMagic = true
+        break
+        case '?':
+          re += qmark
+          hasMagic = true
+        break
+        default:
+          re += '\\' + stateChar
+        break
+      }
+      self.debug('clearStateChar %j %j', stateChar, re)
+      stateChar = false
+    }
+  }
+
+  for (var i = 0, len = pattern.length, c
+    ; (i < len) && (c = pattern.charAt(i))
+    ; i++) {
+    this.debug('%s\t%s %s %j', pattern, i, re, c)
+
+    // skip over any that are escaped.
+    if (escaping && reSpecials[c]) {
+      re += '\\' + c
+      escaping = false
+      continue
+    }
+
+    switch (c) {
+      /* istanbul ignore next */
+      case '/': {
+        // completely not allowed, even escaped.
+        // Should already be path-split by now.
+        return false
+      }
+
+      case '\\':
+        clearStateChar()
+        escaping = true
+      continue
+
+      // the various stateChar values
+      // for the "extglob" stuff.
+      case '?':
+      case '*':
+      case '+':
+      case '@':
+      case '!':
+        this.debug('%s\t%s %s %j <-- stateChar', pattern, i, re, c)
+
+        // all of those are literals inside a class, except that
+        // the glob [!a] means [^a] in regexp
+        if (inClass) {
+          this.debug('  in class')
+          if (c === '!' && i === classStart + 1) c = '^'
+          re += c
+          continue
+        }
+
+        // if we already have a stateChar, then it means
+        // that there was something like ** or +? in there.
+        // Handle the stateChar, then proceed with this one.
+        self.debug('call clearStateChar %j', stateChar)
+        clearStateChar()
+        stateChar = c
+        // if extglob is disabled, then +(asdf|foo) isn't a thing.
+        // just clear the statechar *now*, rather than even diving into
+        // the patternList stuff.
+        if (options.noext) clearStateChar()
+      continue
+
+      case '(':
+        if (inClass) {
+          re += '('
+          continue
+        }
+
+        if (!stateChar) {
+          re += '\\('
+          continue
+        }
+
+        patternListStack.push({
+          type: stateChar,
+          start: i - 1,
+          reStart: re.length,
+          open: plTypes[stateChar].open,
+          close: plTypes[stateChar].close
+        })
+        // negation is (?:(?!js)[^/]*)
+        re += stateChar === '!' ? '(?:(?!(?:' : '(?:'
+        this.debug('plType %j %j', stateChar, re)
+        stateChar = false
+      continue
+
+      case ')':
+        if (inClass || !patternListStack.length) {
+          re += '\\)'
+          continue
+        }
+
+        clearStateChar()
+        hasMagic = true
+        var pl = patternListStack.pop()
+        // negation is (?:(?!js)[^/]*)
+        // The others are (?:<pattern>)<type>
+        re += pl.close
+        if (pl.type === '!') {
+          negativeLists.push(pl)
+        }
+        pl.reEnd = re.length
+      continue
+
+      case '|':
+        if (inClass || !patternListStack.length || escaping) {
+          re += '\\|'
+          escaping = false
+          continue
+        }
+
+        clearStateChar()
+        re += '|'
+      continue
+
+      // these are mostly the same in regexp and glob
+      case '[':
+        // swallow any state-tracking char before the [
+        clearStateChar()
+
+        if (inClass) {
+          re += '\\' + c
+          continue
+        }
+
+        inClass = true
+        classStart = i
+        reClassStart = re.length
+        re += c
+      continue
+
+      case ']':
+        //  a right bracket shall lose its special
+        //  meaning and represent itself in
+        //  a bracket expression if it occurs
+        //  first in the list.  -- POSIX.2 2.8.3.2
+        if (i === classStart + 1 || !inClass) {
+          re += '\\' + c
+          escaping = false
+          continue
+        }
+
+        // handle the case where we left a class open.
+        // "[z-a]" is valid, equivalent to "\[z-a\]"
+        // split where the last [ was, make sure we don't have
+        // an invalid re. if so, re-walk the contents of the
+        // would-be class to re-translate any characters that
+        // were passed through as-is
+        // TODO: It would probably be faster to determine this
+        // without a try/catch and a new RegExp, but it's tricky
+        // to do safely.  For now, this is safe and works.
+        var cs = pattern.substring(classStart + 1, i)
+        try {
+          RegExp('[' + cs + ']')
+        } catch (er) {
+          // not a valid class!
+          var sp = this.parse(cs, SUBPARSE)
+          re = re.substr(0, reClassStart) + '\\[' + sp[0] + '\\]'
+          hasMagic = hasMagic || sp[1]
+          inClass = false
+          continue
+        }
+
+        // finish up the class.
+        hasMagic = true
+        inClass = false
+        re += c
+      continue
+
+      default:
+        // swallow any state char that wasn't consumed
+        clearStateChar()
+
+        if (escaping) {
+          // no need
+          escaping = false
+        } else if (reSpecials[c]
+          && !(c === '^' && inClass)) {
+          re += '\\'
+        }
+
+        re += c
+
+    } // switch
+  } // for
+
+  // handle the case where we left a class open.
+  // "[abc" is valid, equivalent to "\[abc"
+  if (inClass) {
+    // split where the last [ was, and escape it
+    // this is a huge pita.  We now have to re-walk
+    // the contents of the would-be class to re-translate
+    // any characters that were passed through as-is
+    cs = pattern.substr(classStart + 1)
+    sp = this.parse(cs, SUBPARSE)
+    re = re.substr(0, reClassStart) + '\\[' + sp[0]
+    hasMagic = hasMagic || sp[1]
+  }
+
+  // handle the case where we had a +( thing at the *end*
+  // of the pattern.
+  // each pattern list stack adds 3 chars, and we need to go through
+  // and escape any | chars that were passed through as-is for the regexp.
+  // Go through and escape them, taking care not to double-escape any
+  // | chars that were already escaped.
+  for (pl = patternListStack.pop(); pl; pl = patternListStack.pop()) {
+    var tail = re.slice(pl.reStart + pl.open.length)
+    this.debug('setting tail', re, pl)
+    // maybe some even number of \, then maybe 1 \, followed by a |
+    tail = tail.replace(/((?:\\{2}){0,64})(\\?)\|/g, function (_, $1, $2) {
+      if (!$2) {
+        // the | isn't already escaped, so escape it.
+        $2 = '\\'
+      }
+
+      // need to escape all those slashes *again*, without escaping the
+      // one that we need for escaping the | character.  As it works out,
+      // escaping an even number of slashes can be done by simply repeating
+      // it exactly after itself.  That's why this trick works.
+      //
+      // I am sorry that you have to see this.
+      return $1 + $1 + $2 + '|'
+    })
+
+    this.debug('tail=%j\n   %s', tail, tail, pl, re)
+    var t = pl.type === '*' ? star
+      : pl.type === '?' ? qmark
+      : '\\' + pl.type
+
+    hasMagic = true
+    re = re.slice(0, pl.reStart) + t + '\\(' + tail
+  }
+
+  // handle trailing things that only matter at the very end.
+  clearStateChar()
+  if (escaping) {
+    // trailing \\
+    re += '\\\\'
+  }
+
+  // only need to apply the nodot start if the re starts with
+  // something that could conceivably capture a dot
+  var addPatternStart = false
+  switch (re.charAt(0)) {
+    case '[': case '.': case '(': addPatternStart = true
+  }
+
+  // Hack to work around lack of negative lookbehind in JS
+  // A pattern like: *.!(x).!(y|z) needs to ensure that a name
+  // like 'a.xyz.yz' doesn't match.  So, the first negative
+  // lookahead, has to look ALL the way ahead, to the end of
+  // the pattern.
+  for (var n = negativeLists.length - 1; n > -1; n--) {
+    var nl = negativeLists[n]
+
+    var nlBefore = re.slice(0, nl.reStart)
+    var nlFirst = re.slice(nl.reStart, nl.reEnd - 8)
+    var nlLast = re.slice(nl.reEnd - 8, nl.reEnd)
+    var nlAfter = re.slice(nl.reEnd)
+
+    nlLast += nlAfter
+
+    // Handle nested stuff like *(*.js|!(*.json)), where open parens
+    // mean that we should *not* include the ) in the bit that is considered
+    // "after" the negated section.
+    var openParensBefore = nlBefore.split('(').length - 1
+    var cleanAfter = nlAfter
+    for (i = 0; i < openParensBefore; i++) {
+      cleanAfter = cleanAfter.replace(/\)[+*?]?/, '')
+    }
+    nlAfter = cleanAfter
+
+    var dollar = ''
+    if (nlAfter === '' && isSub !== SUBPARSE) {
+      dollar = '$'
+    }
+    var newRe = nlBefore + nlFirst + nlAfter + dollar + nlLast
+    re = newRe
+  }
+
+  // if the re is not "" at this point, then we need to make sure
+  // it doesn't match against an empty path part.
+  // Otherwise a/* will match a/, which it should not.
+  if (re !== '' && hasMagic) {
+    re = '(?=.)' + re
+  }
+
+  if (addPatternStart) {
+    re = patternStart + re
+  }
+
+  // parsing just a piece of a larger pattern.
+  if (isSub === SUBPARSE) {
+    return [re, hasMagic]
+  }
+
+  // skip the regexp for non-magical patterns
+  // unescape anything in it, though, so that it'll be
+  // an exact match against a file etc.
+  if (!hasMagic) {
+    return globUnescape(pattern)
+  }
+
+  var flags = options.nocase ? 'i' : ''
+  try {
+    var regExp = new RegExp('^' + re + '$', flags)
+  } catch (er) /* istanbul ignore next - should be impossible */ {
+    // If it was an invalid regular expression, then it can't match
+    // anything.  This trick looks for a character after the end of
+    // the string, which is of course impossible, except in multi-line
+    // mode, but it's not a /m regex.
+    return new RegExp('$.')
+  }
+
+  regExp._glob = pattern
+  regExp._src = re
+
+  return regExp
+}
+
+minimatch.makeRe = function (pattern, options) {
+  return new Minimatch(pattern, options || {}).makeRe()
+}
+
+Minimatch.prototype.makeRe = makeRe
+function makeRe () {
+  if (this.regexp || this.regexp === false) return this.regexp
+
+  // at this point, this.set is a 2d array of partial
+  // pattern strings, or "**".
+  //
+  // It's better to use .match().  This function shouldn't
+  // be used, really, but it's pretty convenient sometimes,
+  // when you just want to work with a regex.
+  var set = this.set
+
+  if (!set.length) {
+    this.regexp = false
+    return this.regexp
+  }
+  var options = this.options
+
+  var twoStar = options.noglobstar ? star
+    : options.dot ? twoStarDot
+    : twoStarNoDot
+  var flags = options.nocase ? 'i' : ''
+
+  var re = set.map(function (pattern) {
+    return pattern.map(function (p) {
+      return (p === GLOBSTAR) ? twoStar
+      : (typeof p === 'string') ? regExpEscape(p)
+      : p._src
+    }).join('\\\/')
+  }).join('|')
+
+  // must match entire pattern
+  // ending in a * or ** will make it less strict.
+  re = '^(?:' + re + ')$'
+
+  // can match anything, as long as it's not this.
+  if (this.negate) re = '^(?!' + re + ').*$'
+
+  try {
+    this.regexp = new RegExp(re, flags)
+  } catch (ex) /* istanbul ignore next - should be impossible */ {
+    this.regexp = false
+  }
+  return this.regexp
+}
+
+minimatch.match = function (list, pattern, options) {
+  options = options || {}
+  var mm = new Minimatch(pattern, options)
+  list = list.filter(function (f) {
+    return mm.match(f)
+  })
+  if (mm.options.nonull && !list.length) {
+    list.push(pattern)
+  }
+  return list
+}
+
+Minimatch.prototype.match = function match (f, partial) {
+  if (typeof partial === 'undefined') partial = this.partial
+  this.debug('match', f, this.pattern)
+  // short-circuit in the case of busted things.
+  // comments, etc.
+  if (this.comment) return false
+  if (this.empty) return f === ''
+
+  if (f === '/' && partial) return true
+
+  var options = this.options
+
+  // windows: need to use /, not \
+  if (path.sep !== '/') {
+    f = f.split(path.sep).join('/')
+  }
+
+  // treat the test path as a set of pathparts.
+  f = f.split(slashSplit)
+  this.debug(this.pattern, 'split', f)
+
+  // just ONE of the pattern sets in this.set needs to match
+  // in order for it to be valid.  If negating, then just one
+  // match means that we have failed.
+  // Either way, return on the first hit.
+
+  var set = this.set
+  this.debug(this.pattern, 'set', set)
+
+  // Find the basename of the path by looking for the last non-empty segment
+  var filename
+  var i
+  for (i = f.length - 1; i >= 0; i--) {
+    filename = f[i]
+    if (filename) break
+  }
+
+  for (i = 0; i < set.length; i++) {
+    var pattern = set[i]
+    var file = f
+    if (options.matchBase && pattern.length === 1) {
+      file = [filename]
+    }
+    var hit = this.matchOne(file, pattern, partial)
+    if (hit) {
+      if (options.flipNegate) return true
+      return !this.negate
+    }
+  }
+
+  // didn't get any hits.  this is success if it's a negative
+  // pattern, failure otherwise.
+  if (options.flipNegate) return false
+  return this.negate
+}
+
+// set partial to true to test if, for example,
+// "/a/b" matches the start of "/*/b/*/d"
+// Partial means, if you run out of file before you run
+// out of pattern, then that's fine, as long as all
+// the parts match.
+Minimatch.prototype.matchOne = function (file, pattern, partial) {
+  var options = this.options
+
+  this.debug('matchOne',
+    { 'this': this, file: file, pattern: pattern })
+
+  this.debug('matchOne', file.length, pattern.length)
+
+  for (var fi = 0,
+      pi = 0,
+      fl = file.length,
+      pl = pattern.length
+      ; (fi < fl) && (pi < pl)
+      ; fi++, pi++) {
+    this.debug('matchOne loop')
+    var p = pattern[pi]
+    var f = file[fi]
+
+    this.debug(pattern, p, f)
+
+    // should be impossible.
+    // some invalid regexp stuff in the set.
+    /* istanbul ignore if */
+    if (p === false) return false
+
+    if (p === GLOBSTAR) {
+      this.debug('GLOBSTAR', [pattern, p, f])
+
+      // "**"
+      // a/**/b/**/c would match the following:
+      // a/b/x/y/z/c
+      // a/x/y/z/b/c
+      // a/b/x/b/x/c
+      // a/b/c
+      // To do this, take the rest of the pattern after
+      // the **, and see if it would match the file remainder.
+      // If so, return success.
+      // If not, the ** "swallows" a segment, and try again.
+      // This is recursively awful.
+      //
+      // a/**/b/**/c matching a/b/x/y/z/c
+      // - a matches a
+      // - doublestar
+      //   - matchOne(b/x/y/z/c, b/**/c)
+      //     - b matches b
+      //     - doublestar
+      //       - matchOne(x/y/z/c, c) -> no
+      //       - matchOne(y/z/c, c) -> no
+      //       - matchOne(z/c, c) -> no
+      //       - matchOne(c, c) yes, hit
+      var fr = fi
+      var pr = pi + 1
+      if (pr === pl) {
+        this.debug('** at the end')
+        // a ** at the end will just swallow the rest.
+        // We have found a match.
+        // however, it will not swallow /.x, unless
+        // options.dot is set.
+        // . and .. are *never* matched by **, for explosively
+        // exponential reasons.
+        for (; fi < fl; fi++) {
+          if (file[fi] === '.' || file[fi] === '..' ||
+            (!options.dot && file[fi].charAt(0) === '.')) return false
+        }
+        return true
+      }
+
+      // ok, let's see if we can swallow whatever we can.
+      while (fr < fl) {
+        var swallowee = file[fr]
+
+        this.debug('\nglobstar while', file, fr, pattern, pr, swallowee)
+
+        // XXX remove this slice.  Just pass the start index.
+        if (this.matchOne(file.slice(fr), pattern.slice(pr), partial)) {
+          this.debug('globstar found match!', fr, fl, swallowee)
+          // found a match.
+          return true
+        } else {
+          // can't swallow "." or ".." ever.
+          // can only swallow ".foo" when explicitly asked.
+          if (swallowee === '.' || swallowee === '..' ||
+            (!options.dot && swallowee.charAt(0) === '.')) {
+            this.debug('dot detected!', file, fr, pattern, pr)
+            break
+          }
+
+          // ** swallows a segment, and continue.
+          this.debug('globstar swallow a segment, and continue')
+          fr++
+        }
+      }
+
+      // no match was found.
+      // However, in partial mode, we can't say this is necessarily over.
+      // If there's more *pattern* left, then
+      /* istanbul ignore if */
+      if (partial) {
+        // ran out of file
+        this.debug('\n>>> no match, partial?', file, fr, pattern, pr)
+        if (fr === fl) return true
+      }
+      return false
+    }
+
+    // something other than **
+    // non-magic patterns just have to match exactly
+    // patterns with magic have been turned into regexps.
+    var hit
+    if (typeof p === 'string') {
+      hit = f === p
+      this.debug('string match', p, f, hit)
+    } else {
+      hit = f.match(p)
+      this.debug('pattern match', p, f, hit)
+    }
+
+    if (!hit) return false
+  }
+
+  // Note: ending in / means that we'll get a final ""
+  // at the end of the pattern.  This can only match a
+  // corresponding "" at the end of the file.
+  // If the file ends in /, then it can only match a
+  // a pattern that ends in /, unless the pattern just
+  // doesn't have any more for it. But, a/b/ should *not*
+  // match "a/b/*", even though "" matches against the
+  // [^/]*? pattern, except in partial mode, where it might
+  // simply not be reached yet.
+  // However, a/b/ should still satisfy a/*
+
+  // now either we fell off the end of the pattern, or we're done.
+  if (fi === fl && pi === pl) {
+    // ran out of pattern and filename at the same time.
+    // an exact hit!
+    return true
+  } else if (fi === fl) {
+    // ran out of file, but still had pattern left.
+    // this is ok if we're doing the match as part of
+    // a glob fs traversal.
+    return partial
+  } else /* istanbul ignore else */ if (pi === pl) {
+    // ran out of pattern, still have file left.
+    // this is only acceptable if we're on the very last
+    // empty segment of a file with a trailing slash.
+    // a/* should match a/b/
+    return (fi === fl - 1) && (file[fi] === '')
+  }
+
+  // should be unreachable.
+  /* istanbul ignore next */
+  throw new Error('wtf?')
+}
+
+// replace stuff like \* with *
+function globUnescape (s) {
+  return s.replace(/\\(.)/g, '$1')
+}
+
+function regExpEscape (s) {
+  return s.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&')
+}
diff --git a/node_modules/minimatch/package.json b/node_modules/minimatch/package.json
new file mode 100644
index 0000000..566efdf
--- /dev/null
+++ b/node_modules/minimatch/package.json
@@ -0,0 +1,33 @@
+{
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me)",
+  "name": "minimatch",
+  "description": "a glob matcher in javascript",
+  "version": "3.1.2",
+  "publishConfig": {
+    "tag": "v3-legacy"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/isaacs/minimatch.git"
+  },
+  "main": "minimatch.js",
+  "scripts": {
+    "test": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --all; git push origin --tags"
+  },
+  "engines": {
+    "node": "*"
+  },
+  "dependencies": {
+    "brace-expansion": "^1.1.7"
+  },
+  "devDependencies": {
+    "tap": "^15.1.6"
+  },
+  "license": "ISC",
+  "files": [
+    "minimatch.js"
+  ]
+}
diff --git a/node_modules/minipass-collect/LICENSE b/node_modules/minipass-collect/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/minipass-collect/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/minipass-collect/README.md b/node_modules/minipass-collect/README.md
new file mode 100644
index 0000000..ae1c3da
--- /dev/null
+++ b/node_modules/minipass-collect/README.md
@@ -0,0 +1,48 @@
+# minipass-collect
+
+A Minipass stream that collects all the data into a single chunk
+
+Note that this buffers ALL data written to it, so it's only good for
+situations where you are sure the entire stream fits in memory.
+
+Note: this is primarily useful for the `Collect.PassThrough` class, since
+Minipass streams already have a `.collect()` method which returns a promise
+that resolves to the array of chunks, and a `.concat()` method that returns
+the data concatenated into a single Buffer or String.
+
+## USAGE
+
+```js
+const Collect = require('minipass-collect')
+
+const collector = new Collect()
+collector.on('data', allTheData => {
+  console.log('all the data!', allTheData)
+})
+
+someSourceOfData.pipe(collector)
+
+// note that you can also simply do:
+someSourceOfData.pipe(new Minipass()).concat().then(data => ...)
+// or even, if someSourceOfData is a Minipass:
+someSourceOfData.concat().then(data => ...)
+// but you might prefer to have it stream-shaped rather than
+// Promise-shaped in some scenarios.
+```
+
+If you want to collect the data, but _also_ act as a passthrough stream,
+then use `Collect.PassThrough` instead (for example to memoize streaming
+responses), and listen on the `collect` event.
+
+```js
+const Collect = require('minipass-collect')
+
+const collector = new Collect.PassThrough()
+collector.on('collect', allTheData => {
+  console.log('all the data!', allTheData)
+})
+
+someSourceOfData.pipe(collector).pipe(someOtherStream)
+```
+
+All [minipass options](http://npm.im/minipass) are supported.
diff --git a/node_modules/minipass-collect/index.js b/node_modules/minipass-collect/index.js
new file mode 100644
index 0000000..2fe68c0
--- /dev/null
+++ b/node_modules/minipass-collect/index.js
@@ -0,0 +1,71 @@
+const Minipass = require('minipass')
+const _data = Symbol('_data')
+const _length = Symbol('_length')
+class Collect extends Minipass {
+  constructor (options) {
+    super(options)
+    this[_data] = []
+    this[_length] = 0
+  }
+  write (chunk, encoding, cb) {
+    if (typeof encoding === 'function')
+      cb = encoding, encoding = 'utf8'
+
+    if (!encoding)
+      encoding = 'utf8'
+
+    const c = Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk, encoding)
+    this[_data].push(c)
+    this[_length] += c.length
+    if (cb)
+      cb()
+    return true
+  }
+  end (chunk, encoding, cb) {
+    if (typeof chunk === 'function')
+      cb = chunk, chunk = null
+    if (typeof encoding === 'function')
+      cb = encoding, encoding = 'utf8'
+    if (chunk)
+      this.write(chunk, encoding)
+    const result = Buffer.concat(this[_data], this[_length])
+    super.write(result)
+    return super.end(cb)
+  }
+}
+module.exports = Collect
+
+// it would be possible to DRY this a bit by doing something like
+// this.collector = new Collect() and listening on its data event,
+// but it's not much code, and we may as well save the extra obj
+class CollectPassThrough extends Minipass {
+  constructor (options) {
+    super(options)
+    this[_data] = []
+    this[_length] = 0
+  }
+  write (chunk, encoding, cb) {
+    if (typeof encoding === 'function')
+      cb = encoding, encoding = 'utf8'
+
+    if (!encoding)
+      encoding = 'utf8'
+
+    const c = Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk, encoding)
+    this[_data].push(c)
+    this[_length] += c.length
+    return super.write(chunk, encoding, cb)
+  }
+  end (chunk, encoding, cb) {
+    if (typeof chunk === 'function')
+      cb = chunk, chunk = null
+    if (typeof encoding === 'function')
+      cb = encoding, encoding = 'utf8'
+    if (chunk)
+      this.write(chunk, encoding)
+    const result = Buffer.concat(this[_data], this[_length])
+    this.emit('collect', result)
+    return super.end(cb)
+  }
+}
+module.exports.PassThrough = CollectPassThrough
diff --git a/node_modules/minipass-collect/package.json b/node_modules/minipass-collect/package.json
new file mode 100644
index 0000000..54d87ac
--- /dev/null
+++ b/node_modules/minipass-collect/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "minipass-collect",
+  "version": "1.0.2",
+  "description": "A Minipass stream that collects all the data into a single chunk",
+  "author": "Isaac Z. Schlueter <i@izs.me> (https://izs.me)",
+  "license": "ISC",
+  "scripts": {
+    "test": "tap",
+    "snap": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags"
+  },
+  "tap": {
+    "check-coverage": true
+  },
+  "devDependencies": {
+    "tap": "^14.6.9"
+  },
+  "dependencies": {
+    "minipass": "^3.0.0"
+  },
+  "files": [
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 8"
+  }
+}
diff --git a/node_modules/minipass-fetch/LICENSE b/node_modules/minipass-fetch/LICENSE
new file mode 100644
index 0000000..3c3410c
--- /dev/null
+++ b/node_modules/minipass-fetch/LICENSE
@@ -0,0 +1,28 @@
+The MIT License (MIT)
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+Copyright (c) 2016 David Frank
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+---
+
+Note: This is a derivative work based on "node-fetch" by David Frank,
+modified and distributed under the terms of the MIT license above.
+https://github.com/bitinn/node-fetch
diff --git a/node_modules/minipass-fetch/README.md b/node_modules/minipass-fetch/README.md
new file mode 100644
index 0000000..925e6be
--- /dev/null
+++ b/node_modules/minipass-fetch/README.md
@@ -0,0 +1,29 @@
+# minipass-fetch
+
+An implementation of window.fetch in Node.js using Minipass streams
+
+This is a fork (or more precisely, a reimplementation) of
+[node-fetch](http://npm.im/node-fetch).  All streams have been replaced
+with [minipass streams](http://npm.im/minipass).
+
+The goal of this module is to stay in sync with the API presented by
+`node-fetch`, with the exception of the streaming interface provided.
+
+## Why
+
+Minipass streams are faster and more deterministic in their timing contract
+than node-core streams, making them a better fit for many server-side use
+cases.
+
+## API
+
+See [node-fetch](http://npm.im/node-fetch)
+
+Differences from `node-fetch` (and, by extension, from the WhatWG Fetch
+specification):
+
+- Returns [minipass](http://npm.im/minipass) streams instead of node-core
+  streams.
+- Supports the full set of [TLS Options that may be provided to
+  `https.request()`](https://nodejs.org/api/https.html#https_https_request_options_callback)
+  when making `https` requests.
diff --git a/node_modules/minipass-fetch/index.js b/node_modules/minipass-fetch/index.js
new file mode 100644
index 0000000..07efc17
--- /dev/null
+++ b/node_modules/minipass-fetch/index.js
@@ -0,0 +1 @@
+module.exports = require('./lib/index.js')
diff --git a/node_modules/minipass-fetch/lib/abort-error.js b/node_modules/minipass-fetch/lib/abort-error.js
new file mode 100644
index 0000000..b18f643
--- /dev/null
+++ b/node_modules/minipass-fetch/lib/abort-error.js
@@ -0,0 +1,17 @@
+'use strict'
+class AbortError extends Error {
+  constructor (message) {
+    super(message)
+    this.code = 'FETCH_ABORTED'
+    this.type = 'aborted'
+    Error.captureStackTrace(this, this.constructor)
+  }
+
+  get name () {
+    return 'AbortError'
+  }
+
+  // don't allow name to be overridden, but don't throw either
+  set name (s) {}
+}
+module.exports = AbortError
diff --git a/node_modules/minipass-fetch/lib/blob.js b/node_modules/minipass-fetch/lib/blob.js
new file mode 100644
index 0000000..9225db6
--- /dev/null
+++ b/node_modules/minipass-fetch/lib/blob.js
@@ -0,0 +1,97 @@
+'use strict'
+const Minipass = require('minipass')
+const TYPE = Symbol('type')
+const BUFFER = Symbol('buffer')
+
+class Blob {
+  constructor (blobParts, options) {
+    this[TYPE] = ''
+
+    const buffers = []
+    let size = 0
+
+    if (blobParts) {
+      const a = blobParts
+      const length = Number(a.length)
+      for (let i = 0; i < length; i++) {
+        const element = a[i]
+        const buffer = element instanceof Buffer ? element
+          : ArrayBuffer.isView(element)
+            ? Buffer.from(element.buffer, element.byteOffset, element.byteLength)
+          : element instanceof ArrayBuffer ? Buffer.from(element)
+          : element instanceof Blob ? element[BUFFER]
+          : typeof element === 'string' ? Buffer.from(element)
+          : Buffer.from(String(element))
+        size += buffer.length
+        buffers.push(buffer)
+      }
+    }
+
+    this[BUFFER] = Buffer.concat(buffers, size)
+
+    const type = options && options.type !== undefined
+      && String(options.type).toLowerCase()
+    if (type && !/[^\u0020-\u007E]/.test(type)) {
+      this[TYPE] = type
+    }
+  }
+
+  get size () {
+    return this[BUFFER].length
+  }
+
+  get type () {
+    return this[TYPE]
+  }
+
+  text () {
+    return Promise.resolve(this[BUFFER].toString())
+  }
+
+  arrayBuffer () {
+    const buf = this[BUFFER]
+    const off = buf.byteOffset
+    const len = buf.byteLength
+    const ab = buf.buffer.slice(off, off + len)
+    return Promise.resolve(ab)
+  }
+
+  stream () {
+    return new Minipass().end(this[BUFFER])
+  }
+
+  slice (start, end, type) {
+    const size = this.size
+    const relativeStart = start === undefined ? 0
+      : start < 0 ? Math.max(size + start, 0)
+      : Math.min(start, size)
+    const relativeEnd = end === undefined ? size
+      : end < 0 ? Math.max(size + end, 0)
+      : Math.min(end, size)
+    const span = Math.max(relativeEnd - relativeStart, 0)
+
+    const buffer = this[BUFFER]
+    const slicedBuffer = buffer.slice(
+      relativeStart,
+      relativeStart + span
+    )
+    const blob = new Blob([], { type })
+    blob[BUFFER] = slicedBuffer
+    return blob
+  }
+
+  get [Symbol.toStringTag] () {
+    return 'Blob'
+  }
+
+  static get BUFFER () {
+    return BUFFER
+  }
+}
+
+Object.defineProperties(Blob.prototype, {
+  size: { enumerable: true },
+  type: { enumerable: true },
+})
+
+module.exports = Blob
diff --git a/node_modules/minipass-fetch/lib/body.js b/node_modules/minipass-fetch/lib/body.js
new file mode 100644
index 0000000..fb7ffc3
--- /dev/null
+++ b/node_modules/minipass-fetch/lib/body.js
@@ -0,0 +1,334 @@
+'use strict'
+const Minipass = require('minipass')
+const MinipassSized = require('minipass-sized')
+
+const Blob = require('./blob.js')
+const {BUFFER} = Blob
+const FetchError = require('./fetch-error.js')
+
+// optional dependency on 'encoding'
+let convert
+try {
+  convert = require('encoding').convert
+} catch (e) {}
+
+const INTERNALS = Symbol('Body internals')
+const CONSUME_BODY = Symbol('consumeBody')
+
+class Body {
+  constructor (bodyArg, options = {}) {
+    const { size = 0, timeout = 0 } = options
+    const body = bodyArg === undefined || bodyArg === null ? null
+      : isURLSearchParams(bodyArg) ? Buffer.from(bodyArg.toString())
+      : isBlob(bodyArg) ? bodyArg
+      : Buffer.isBuffer(bodyArg) ? bodyArg
+      : Object.prototype.toString.call(bodyArg) === '[object ArrayBuffer]'
+        ? Buffer.from(bodyArg)
+      : ArrayBuffer.isView(bodyArg)
+        ? Buffer.from(bodyArg.buffer, bodyArg.byteOffset, bodyArg.byteLength)
+      : Minipass.isStream(bodyArg) ? bodyArg
+      : Buffer.from(String(bodyArg))
+
+    this[INTERNALS] = {
+      body,
+      disturbed: false,
+      error: null,
+    }
+
+    this.size = size
+    this.timeout = timeout
+
+    if (Minipass.isStream(body)) {
+      body.on('error', er => {
+        const error = er.name === 'AbortError' ? er
+          : new FetchError(`Invalid response while trying to fetch ${
+            this.url}: ${er.message}`, 'system', er)
+        this[INTERNALS].error = error
+      })
+    }
+  }
+
+  get body () {
+    return this[INTERNALS].body
+  }
+
+  get bodyUsed () {
+    return this[INTERNALS].disturbed
+  }
+
+  arrayBuffer () {
+    return this[CONSUME_BODY]().then(buf =>
+      buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength))
+  }
+
+  blob () {
+    const ct = this.headers && this.headers.get('content-type') || ''
+    return this[CONSUME_BODY]().then(buf => Object.assign(
+      new Blob([], { type: ct.toLowerCase() }),
+      { [BUFFER]: buf }
+    ))
+  }
+
+  json () {
+    return this[CONSUME_BODY]().then(buf => {
+      try {
+        return JSON.parse(buf.toString())
+      } catch (er) {
+        return Promise.reject(new FetchError(
+          `invalid json response body at ${
+            this.url} reason: ${er.message}`, 'invalid-json'))
+      }
+    })
+  }
+
+  text () {
+    return this[CONSUME_BODY]().then(buf => buf.toString())
+  }
+
+  buffer () {
+    return this[CONSUME_BODY]()
+  }
+
+  textConverted () {
+    return this[CONSUME_BODY]().then(buf => convertBody(buf, this.headers))
+  }
+
+  [CONSUME_BODY] () {
+    if (this[INTERNALS].disturbed)
+      return Promise.reject(new TypeError(`body used already for: ${
+        this.url}`))
+
+    this[INTERNALS].disturbed = true
+
+    if (this[INTERNALS].error)
+      return Promise.reject(this[INTERNALS].error)
+
+    // body is null
+    if (this.body === null) {
+      return Promise.resolve(Buffer.alloc(0))
+    }
+
+    if (Buffer.isBuffer(this.body))
+      return Promise.resolve(this.body)
+
+    const upstream = isBlob(this.body) ? this.body.stream() : this.body
+
+    /* istanbul ignore if: should never happen */
+    if (!Minipass.isStream(upstream))
+      return Promise.resolve(Buffer.alloc(0))
+
+    const stream = this.size && upstream instanceof MinipassSized ? upstream
+      : !this.size && upstream instanceof Minipass &&
+        !(upstream instanceof MinipassSized) ? upstream
+      : this.size ? new MinipassSized({ size: this.size })
+      : new Minipass()
+
+    // allow timeout on slow response body
+    const resTimeout = this.timeout ? setTimeout(() => {
+      stream.emit('error', new FetchError(
+        `Response timeout while trying to fetch ${
+          this.url} (over ${this.timeout}ms)`, 'body-timeout'))
+    }, this.timeout) : null
+
+    // do not keep the process open just for this timeout, even
+    // though we expect it'll get cleared eventually.
+    if (resTimeout) {
+      resTimeout.unref()
+    }
+
+    // do the pipe in the promise, because the pipe() can send too much
+    // data through right away and upset the MP Sized object
+    return new Promise((resolve, reject) => {
+      // if the stream is some other kind of stream, then pipe through a MP
+      // so we can collect it more easily.
+      if (stream !== upstream) {
+        upstream.on('error', er => stream.emit('error', er))
+        upstream.pipe(stream)
+      }
+      resolve()
+    }).then(() => stream.concat()).then(buf => {
+      clearTimeout(resTimeout)
+      return buf
+    }).catch(er => {
+      clearTimeout(resTimeout)
+      // request was aborted, reject with this Error
+      if (er.name === 'AbortError' || er.name === 'FetchError')
+        throw er
+      else if (er.name === 'RangeError')
+        throw new FetchError(`Could not create Buffer from response body for ${
+          this.url}: ${er.message}`, 'system', er)
+      else
+        // other errors, such as incorrect content-encoding or content-length
+        throw new FetchError(`Invalid response body while trying to fetch ${
+          this.url}: ${er.message}`, 'system', er)
+    })
+  }
+
+  static clone (instance) {
+    if (instance.bodyUsed)
+      throw new Error('cannot clone body after it is used')
+
+    const body = instance.body
+
+    // check that body is a stream and not form-data object
+    // NB: can't clone the form-data object without having it as a dependency
+    if (Minipass.isStream(body) && typeof body.getBoundary !== 'function') {
+      // create a dedicated tee stream so that we don't lose data
+      // potentially sitting in the body stream's buffer by writing it
+      // immediately to p1 and not having it for p2.
+      const tee = new Minipass()
+      const p1 = new Minipass()
+      const p2 = new Minipass()
+      tee.on('error', er => {
+        p1.emit('error', er)
+        p2.emit('error', er)
+      })
+      body.on('error', er => tee.emit('error', er))
+      tee.pipe(p1)
+      tee.pipe(p2)
+      body.pipe(tee)
+      // set instance body to one fork, return the other
+      instance[INTERNALS].body = p1
+      return p2
+    } else
+      return instance.body
+  }
+
+  static extractContentType (body) {
+    return body === null || body === undefined ? null
+      : typeof body === 'string' ? 'text/plain;charset=UTF-8'
+      : isURLSearchParams(body)
+        ? 'application/x-www-form-urlencoded;charset=UTF-8'
+      : isBlob(body) ? body.type || null
+      : Buffer.isBuffer(body) ? null
+      : Object.prototype.toString.call(body) === '[object ArrayBuffer]' ? null
+      : ArrayBuffer.isView(body) ? null
+      : typeof body.getBoundary === 'function'
+        ? `multipart/form-data;boundary=${body.getBoundary()}`
+      : Minipass.isStream(body) ? null
+      : 'text/plain;charset=UTF-8'
+  }
+
+  static getTotalBytes (instance) {
+    const {body} = instance
+    return (body === null || body === undefined) ? 0
+    : isBlob(body) ? body.size
+    : Buffer.isBuffer(body) ? body.length
+    : body && typeof body.getLengthSync === 'function' && (
+        // detect form data input from form-data module
+        body._lengthRetrievers &&
+        /* istanbul ignore next */ body._lengthRetrievers.length == 0 || // 1.x
+        body.hasKnownLength && body.hasKnownLength()) // 2.x
+      ? body.getLengthSync()
+    : null
+  }
+
+  static writeToStream (dest, instance) {
+    const {body} = instance
+
+    if (body === null || body === undefined)
+      dest.end()
+    else if (Buffer.isBuffer(body) || typeof body === 'string')
+      dest.end(body)
+    else {
+      // body is stream or blob
+      const stream = isBlob(body) ? body.stream() : body
+      stream.on('error', er => dest.emit('error', er)).pipe(dest)
+    }
+
+    return dest
+  }
+}
+
+Object.defineProperties(Body.prototype, {
+  body: { enumerable: true },
+  bodyUsed: { enumerable: true },
+  arrayBuffer: { enumerable: true },
+  blob: { enumerable: true },
+  json: { enumerable: true },
+  text: { enumerable: true }
+})
+
+
+const isURLSearchParams = obj =>
+  // Duck-typing as a necessary condition.
+  (typeof obj !== 'object' ||
+    typeof obj.append !== 'function' ||
+    typeof obj.delete !== 'function' ||
+    typeof obj.get !== 'function' ||
+    typeof obj.getAll !== 'function' ||
+    typeof obj.has !== 'function' ||
+    typeof obj.set !== 'function') ? false
+  // Brand-checking and more duck-typing as optional condition.
+  : obj.constructor.name === 'URLSearchParams' ||
+    Object.prototype.toString.call(obj) === '[object URLSearchParams]' ||
+    typeof obj.sort === 'function'
+
+const isBlob = obj =>
+  typeof obj === 'object' &&
+  typeof obj.arrayBuffer === 'function' &&
+  typeof obj.type === 'string' &&
+  typeof obj.stream === 'function' &&
+  typeof obj.constructor === 'function' &&
+  typeof obj.constructor.name === 'string' &&
+  /^(Blob|File)$/.test(obj.constructor.name) &&
+  /^(Blob|File)$/.test(obj[Symbol.toStringTag])
+
+
+const convertBody = (buffer, headers) => {
+  /* istanbul ignore if */
+  if (typeof convert !== 'function')
+    throw new Error('The package `encoding` must be installed to use the textConverted() function')
+
+  const ct = headers && headers.get('content-type')
+  let charset = 'utf-8'
+  let res, str
+
+  // header
+  if (ct)
+    res = /charset=([^;]*)/i.exec(ct)
+
+  // no charset in content type, peek at response body for at most 1024 bytes
+  str = buffer.slice(0, 1024).toString()
+
+  // html5
+  if (!res && str)
+    res = /<meta.+?charset=(['"])(.+?)\1/i.exec(str)
+
+  // html4
+  if (!res && str) {
+    res = /<meta[\s]+?http-equiv=(['"])content-type\1[\s]+?content=(['"])(.+?)\2/i.exec(str)
+
+    if (!res) {
+      res = /<meta[\s]+?content=(['"])(.+?)\1[\s]+?http-equiv=(['"])content-type\3/i.exec(str)
+      if (res)
+        res.pop() // drop last quote
+    }
+
+    if (res)
+      res = /charset=(.*)/i.exec(res.pop())
+  }
+
+  // xml
+  if (!res && str)
+    res = /<\?xml.+?encoding=(['"])(.+?)\1/i.exec(str)
+
+  // found charset
+  if (res) {
+    charset = res.pop()
+
+    // prevent decode issues when sites use incorrect encoding
+    // ref: https://hsivonen.fi/encoding-menu/
+    if (charset === 'gb2312' || charset === 'gbk')
+      charset = 'gb18030'
+  }
+
+  // turn raw buffers into a single utf-8 buffer
+  return convert(
+    buffer,
+    'UTF-8',
+    charset
+  ).toString()
+}
+
+module.exports = Body
diff --git a/node_modules/minipass-fetch/lib/fetch-error.js b/node_modules/minipass-fetch/lib/fetch-error.js
new file mode 100644
index 0000000..b0445cf
--- /dev/null
+++ b/node_modules/minipass-fetch/lib/fetch-error.js
@@ -0,0 +1,31 @@
+'use strict'
+class FetchError extends Error {
+  constructor (message, type, systemError) {
+    super(message)
+    this.code = 'FETCH_ERROR'
+
+    // pick up code, expected, path, ...
+    if (systemError)
+      Object.assign(this, systemError)
+
+    this.errno = this.code
+
+    // override anything the system error might've clobbered
+    this.type = this.code === 'EBADSIZE' && this.found > this.expect
+      ? 'max-size' : type
+    this.message = message
+    Error.captureStackTrace(this, this.constructor)
+  }
+
+  get name () {
+    return 'FetchError'
+  }
+
+  // don't allow name to be overwritten
+  set name (n) {}
+
+  get [Symbol.toStringTag] () {
+    return 'FetchError'
+  }
+}
+module.exports = FetchError
diff --git a/node_modules/minipass-fetch/lib/headers.js b/node_modules/minipass-fetch/lib/headers.js
new file mode 100644
index 0000000..233675f
--- /dev/null
+++ b/node_modules/minipass-fetch/lib/headers.js
@@ -0,0 +1,250 @@
+'use strict'
+const invalidTokenRegex = /[^\^_`a-zA-Z\-0-9!#$%&'*+.|~]/
+const invalidHeaderCharRegex = /[^\t\x20-\x7e\x80-\xff]/
+
+const validateName = name => {
+  name = `${name}`
+  if (invalidTokenRegex.test(name) || name === '')
+    throw new TypeError(`${name} is not a legal HTTP header name`)
+}
+
+const validateValue = value => {
+  value = `${value}`
+  if (invalidHeaderCharRegex.test(value))
+    throw new TypeError(`${value} is not a legal HTTP header value`)
+}
+
+const find = (map, name) => {
+  name = name.toLowerCase()
+  for (const key in map) {
+    if (key.toLowerCase() === name)
+      return key
+  }
+  return undefined
+}
+
+const MAP = Symbol('map')
+class Headers {
+  constructor (init = undefined) {
+    this[MAP] = Object.create(null)
+    if (init instanceof Headers) {
+      const rawHeaders = init.raw()
+      const headerNames = Object.keys(rawHeaders)
+      for (const headerName of headerNames) {
+        for (const value of rawHeaders[headerName]) {
+          this.append(headerName, value)
+        }
+      }
+      return
+    }
+
+    // no-op
+    if (init === undefined || init === null)
+      return
+
+    if (typeof init === 'object') {
+      const method = init[Symbol.iterator]
+      if (method !== null && method !== undefined) {
+        if (typeof method !== 'function')
+          throw new TypeError('Header pairs must be iterable')
+
+        // sequence<sequence<ByteString>>
+        // Note: per spec we have to first exhaust the lists then process them
+        const pairs = []
+        for (const pair of init) {
+          if (typeof pair !== 'object' ||
+              typeof pair[Symbol.iterator] !== 'function')
+            throw new TypeError('Each header pair must be iterable')
+          const arrPair = Array.from(pair)
+          if (arrPair.length !== 2)
+            throw new TypeError('Each header pair must be a name/value tuple')
+          pairs.push(arrPair)
+        }
+
+        for (const pair of pairs) {
+          this.append(pair[0], pair[1])
+        }
+      } else {
+        // record<ByteString, ByteString>
+        for (const key of Object.keys(init)) {
+          this.append(key, init[key])
+        }
+      }
+    } else
+      throw new TypeError('Provided initializer must be an object')
+  }
+
+  get (name) {
+    name = `${name}`
+    validateName(name)
+    const key = find(this[MAP], name)
+    if (key === undefined)
+      return null
+
+    return this[MAP][key].join(', ')
+  }
+
+  forEach (callback, thisArg = undefined) {
+    let pairs = getHeaders(this)
+    for (let i = 0; i < pairs.length; i++) {
+      const [name, value] = pairs[i]
+      callback.call(thisArg, value, name, this)
+      // refresh in case the callback added more headers
+      pairs = getHeaders(this)
+    }
+  }
+
+  set (name, value) {
+    name = `${name}`
+    value = `${value}`
+    validateName(name)
+    validateValue(value)
+    const key = find(this[MAP], name)
+    this[MAP][key !== undefined ? key : name] = [value]
+  }
+
+  append (name, value) {
+    name = `${name}`
+    value = `${value}`
+    validateName(name)
+    validateValue(value)
+    const key = find(this[MAP], name)
+    if (key !== undefined)
+      this[MAP][key].push(value)
+    else
+      this[MAP][name] = [value]
+  }
+
+  has (name) {
+    name = `${name}`
+    validateName(name)
+    return find(this[MAP], name) !== undefined
+  }
+
+  delete (name) {
+    name = `${name}`
+    validateName(name)
+    const key = find(this[MAP], name)
+    if (key !== undefined)
+      delete this[MAP][key]
+  }
+
+  raw () {
+    return this[MAP]
+  }
+
+  keys () {
+    return new HeadersIterator(this, 'key')
+  }
+
+  values () {
+    return new HeadersIterator(this, 'value')
+  }
+
+  [Symbol.iterator]() {
+    return new HeadersIterator(this, 'key+value')
+  }
+
+  entries () {
+    return new HeadersIterator(this, 'key+value')
+  }
+
+  get [Symbol.toStringTag] () {
+    return 'Headers'
+  }
+
+  static exportNodeCompatibleHeaders (headers) {
+    const obj = Object.assign(Object.create(null), headers[MAP])
+
+    // http.request() only supports string as Host header. This hack makes
+    // specifying custom Host header possible.
+    const hostHeaderKey = find(headers[MAP], 'Host')
+    if (hostHeaderKey !== undefined)
+      obj[hostHeaderKey] = obj[hostHeaderKey][0]
+
+    return obj
+  }
+
+  static createHeadersLenient (obj) {
+    const headers = new Headers()
+    for (const name of Object.keys(obj)) {
+      if (invalidTokenRegex.test(name))
+        continue
+
+      if (Array.isArray(obj[name])) {
+        for (const val of obj[name]) {
+          if (invalidHeaderCharRegex.test(val))
+            continue
+
+          if (headers[MAP][name] === undefined)
+            headers[MAP][name] = [val]
+          else
+            headers[MAP][name].push(val)
+        }
+      } else if (!invalidHeaderCharRegex.test(obj[name]))
+        headers[MAP][name] = [obj[name]]
+    }
+    return headers
+  }
+}
+
+Object.defineProperties(Headers.prototype, {
+  get: { enumerable: true },
+  forEach: { enumerable: true },
+  set: { enumerable: true },
+  append: { enumerable: true },
+  has: { enumerable: true },
+  delete: { enumerable: true },
+  keys: { enumerable: true },
+  values: { enumerable: true },
+  entries: { enumerable: true },
+})
+
+const getHeaders = (headers, kind = 'key+value') =>
+  Object.keys(headers[MAP]).sort().map(
+    kind === 'key' ? k => k.toLowerCase()
+    : kind === 'value' ? k => headers[MAP][k].join(', ')
+    : k => [k.toLowerCase(), headers[MAP][k].join(', ')]
+  )
+
+const INTERNAL = Symbol('internal')
+
+class HeadersIterator {
+  constructor (target, kind) {
+    this[INTERNAL] = {
+      target,
+      kind,
+      index: 0,
+    }
+  }
+
+  get [Symbol.toStringTag] () {
+    return 'HeadersIterator'
+  }
+
+  next () {
+    /* istanbul ignore if: should be impossible */
+    if (!this || Object.getPrototypeOf(this) !== HeadersIterator.prototype)
+      throw new TypeError('Value of `this` is not a HeadersIterator')
+
+    const { target, kind, index } = this[INTERNAL]
+    const values = getHeaders(target, kind)
+    const len = values.length
+    if (index >= len) {
+      return {
+        value: undefined,
+        done: true,
+      }
+    }
+
+    this[INTERNAL].index++
+
+    return { value: values[index], done: false }
+  }
+}
+
+// manually extend because 'extends' requires a ctor
+Object.setPrototypeOf(HeadersIterator.prototype,
+  Object.getPrototypeOf(Object.getPrototypeOf([][Symbol.iterator]())))
+
+module.exports = Headers
diff --git a/node_modules/minipass-fetch/lib/index.js b/node_modules/minipass-fetch/lib/index.js
new file mode 100644
index 0000000..2ffcba8
--- /dev/null
+++ b/node_modules/minipass-fetch/lib/index.js
@@ -0,0 +1,341 @@
+'use strict'
+const Url = require('url')
+const http = require('http')
+const https = require('https')
+const zlib = require('minizlib')
+const Minipass = require('minipass')
+
+const Body = require('./body.js')
+const { writeToStream, getTotalBytes } = Body
+const Response = require('./response.js')
+const Headers = require('./headers.js')
+const { createHeadersLenient } = Headers
+const Request = require('./request.js')
+const { getNodeRequestOptions } = Request
+const FetchError = require('./fetch-error.js')
+const AbortError = require('./abort-error.js')
+
+const resolveUrl = Url.resolve
+
+const fetch = (url, opts) => {
+  if (/^data:/.test(url)) {
+    const request = new Request(url, opts)
+    try {
+      const split = url.split(',')
+      const data = Buffer.from(split[1], 'base64')
+      const type = split[0].match(/^data:(.*);base64$/)[1]
+      return Promise.resolve(new Response(data, {
+        headers: {
+          'Content-Type': type,
+          'Content-Length': data.length,
+        }
+      }))
+    } catch (er) {
+      return Promise.reject(new FetchError(`[${request.method}] ${
+        request.url} invalid URL, ${er.message}`, 'system', er))
+    }
+  }
+
+  return new Promise((resolve, reject) => {
+    // build request object
+    const request = new Request(url, opts)
+    let options
+    try {
+      options = getNodeRequestOptions(request)
+    } catch (er) {
+      return reject(er)
+    }
+
+    const send = (options.protocol === 'https:' ? https : http).request
+    const { signal } = request
+    let response = null
+    const abort = () => {
+      const error = new AbortError('The user aborted a request.')
+      reject(error)
+      if (Minipass.isStream(request.body) &&
+          typeof request.body.destroy === 'function') {
+        request.body.destroy(error)
+      }
+      if (response && response.body) {
+        response.body.emit('error', error)
+      }
+    }
+
+    if (signal && signal.aborted)
+      return abort()
+
+    const abortAndFinalize = () => {
+      abort()
+      finalize()
+    }
+
+    const finalize = () => {
+      req.abort()
+      if (signal)
+        signal.removeEventListener('abort', abortAndFinalize)
+      clearTimeout(reqTimeout)
+    }
+
+    // send request
+    const req = send(options)
+
+    if (signal)
+      signal.addEventListener('abort', abortAndFinalize)
+
+    let reqTimeout = null
+    if (request.timeout) {
+      req.once('socket', socket => {
+        reqTimeout = setTimeout(() => {
+          reject(new FetchError(`network timeout at: ${
+            request.url}`, 'request-timeout'))
+          finalize()
+        }, request.timeout)
+      })
+    }
+
+    req.on('error', er => {
+      // if a 'response' event is emitted before the 'error' event, then by the
+      // time this handler is run it's too late to reject the Promise for the
+      // response. instead, we forward the error event to the response stream
+      // so that the error will surface to the user when they try to consume
+      // the body. this is done as a side effect of aborting the request except
+      // for in windows, where we must forward the event manually, otherwise
+      // there is no longer a ref'd socket attached to the request and the
+      // stream never ends so the event loop runs out of work and the process
+      // exits without warning.
+      // coverage skipped here due to the difficulty in testing
+      // istanbul ignore next
+      if (req.res)
+        req.res.emit('error', er)
+      reject(new FetchError(`request to ${request.url} failed, reason: ${
+        er.message}`, 'system', er))
+      finalize()
+    })
+
+    req.on('response', res => {
+      clearTimeout(reqTimeout)
+
+      const headers = createHeadersLenient(res.headers)
+
+      // HTTP fetch step 5
+      if (fetch.isRedirect(res.statusCode)) {
+        // HTTP fetch step 5.2
+        const location = headers.get('Location')
+
+        // HTTP fetch step 5.3
+        const locationURL = location === null ? null
+          : resolveUrl(request.url, location)
+
+        // HTTP fetch step 5.5
+        switch (request.redirect) {
+          case 'error':
+            reject(new FetchError(`uri requested responds with a redirect, redirect mode is set to error: ${
+              request.url}`, 'no-redirect'))
+            finalize()
+            return
+
+          case 'manual':
+            // node-fetch-specific step: make manual redirect a bit easier to
+            // use by setting the Location header value to the resolved URL.
+            if (locationURL !== null) {
+              // handle corrupted header
+              try {
+                headers.set('Location', locationURL)
+              } catch (err) {
+                /* istanbul ignore next: nodejs server prevent invalid
+                   response headers, we can't test this through normal
+                   request */
+                reject(err)
+              }
+            }
+            break
+
+          case 'follow':
+            // HTTP-redirect fetch step 2
+            if (locationURL === null) {
+              break
+            }
+
+            // HTTP-redirect fetch step 5
+            if (request.counter >= request.follow) {
+              reject(new FetchError(`maximum redirect reached at: ${
+                request.url}`, 'max-redirect'))
+              finalize()
+              return
+            }
+
+            // HTTP-redirect fetch step 9
+            if (res.statusCode !== 303 &&
+                request.body &&
+                getTotalBytes(request) === null) {
+              reject(new FetchError(
+                'Cannot follow redirect with body being a readable stream',
+                'unsupported-redirect'
+              ))
+              finalize()
+              return
+            }
+
+            // Update host due to redirection
+            request.headers.set('host', Url.parse(locationURL).host)
+
+            // HTTP-redirect fetch step 6 (counter increment)
+            // Create a new Request object.
+            const requestOpts = {
+              headers: new Headers(request.headers),
+              follow: request.follow,
+              counter: request.counter + 1,
+              agent: request.agent,
+              compress: request.compress,
+              method: request.method,
+              body: request.body,
+              signal: request.signal,
+              timeout: request.timeout,
+            }
+
+            // HTTP-redirect fetch step 11
+            if (res.statusCode === 303 || (
+                (res.statusCode === 301 || res.statusCode === 302) &&
+                request.method === 'POST'
+            )) {
+              requestOpts.method = 'GET'
+              requestOpts.body = undefined
+              requestOpts.headers.delete('content-length')
+            }
+
+            // HTTP-redirect fetch step 15
+            resolve(fetch(new Request(locationURL, requestOpts)))
+            finalize()
+            return
+        }
+      } // end if(isRedirect)
+
+
+      // prepare response
+      res.once('end', () =>
+        signal && signal.removeEventListener('abort', abortAndFinalize))
+
+      const body = new Minipass()
+      // exceedingly rare that the stream would have an error,
+      // but just in case we proxy it to the stream in use.
+      res.on('error', /* istanbul ignore next */ er => body.emit('error', er))
+      res.on('data', (chunk) => body.write(chunk))
+      res.on('end', () => body.end())
+
+      const responseOptions = {
+        url: request.url,
+        status: res.statusCode,
+        statusText: res.statusMessage,
+        headers: headers,
+        size: request.size,
+        timeout: request.timeout,
+        counter: request.counter,
+        trailer: new Promise(resolve =>
+          res.on('end', () => resolve(createHeadersLenient(res.trailers))))
+      }
+
+      // HTTP-network fetch step 12.1.1.3
+      const codings = headers.get('Content-Encoding')
+
+      // HTTP-network fetch step 12.1.1.4: handle content codings
+
+      // in following scenarios we ignore compression support
+      // 1. compression support is disabled
+      // 2. HEAD request
+      // 3. no Content-Encoding header
+      // 4. no content response (204)
+      // 5. content not modified response (304)
+      if (!request.compress ||
+          request.method === 'HEAD' ||
+          codings === null ||
+          res.statusCode === 204 ||
+          res.statusCode === 304) {
+        response = new Response(body, responseOptions)
+        resolve(response)
+        return
+      }
+
+
+      // Be less strict when decoding compressed responses, since sometimes
+      // servers send slightly invalid responses that are still accepted
+      // by common browsers.
+      // Always using Z_SYNC_FLUSH is what cURL does.
+      const zlibOptions = {
+        flush: zlib.constants.Z_SYNC_FLUSH,
+        finishFlush: zlib.constants.Z_SYNC_FLUSH,
+      }
+
+      // for gzip
+      if (codings == 'gzip' || codings == 'x-gzip') {
+        const unzip = new zlib.Gunzip(zlibOptions)
+        response = new Response(
+          // exceedingly rare that the stream would have an error,
+          // but just in case we proxy it to the stream in use.
+          body.on('error', /* istanbul ignore next */ er => unzip.emit('error', er)).pipe(unzip),
+          responseOptions
+        )
+        resolve(response)
+        return
+      }
+
+      // for deflate
+      if (codings == 'deflate' || codings == 'x-deflate') {
+        // handle the infamous raw deflate response from old servers
+        // a hack for old IIS and Apache servers
+        const raw = res.pipe(new Minipass())
+        raw.once('data', chunk => {
+          // see http://stackoverflow.com/questions/37519828
+          const decoder = (chunk[0] & 0x0F) === 0x08
+            ? new zlib.Inflate()
+            : new zlib.InflateRaw()
+          // exceedingly rare that the stream would have an error,
+          // but just in case we proxy it to the stream in use.
+          body.on('error', /* istanbul ignore next */ er => decoder.emit('error', er)).pipe(decoder)
+          response = new Response(decoder, responseOptions)
+          resolve(response)
+        })
+        return
+      }
+
+
+      // for br
+      if (codings == 'br') {
+        // ignoring coverage so tests don't have to fake support (or lack of) for brotli
+        // istanbul ignore next
+        try {
+          var decoder = new zlib.BrotliDecompress()
+        } catch (err) {
+          reject(err)
+          finalize()
+          return
+        }
+        // exceedingly rare that the stream would have an error,
+        // but just in case we proxy it to the stream in use.
+        body.on('error', /* istanbul ignore next */ er => decoder.emit('error', er)).pipe(decoder)
+        response = new Response(decoder, responseOptions)
+        resolve(response)
+        return
+      }
+
+      // otherwise, use response as-is
+      response = new Response(body, responseOptions)
+      resolve(response)
+    })
+
+    writeToStream(req, request)
+  })
+}
+
+module.exports = fetch
+
+fetch.isRedirect = code =>
+  code === 301 ||
+  code === 302 ||
+  code === 303 ||
+  code === 307 ||
+  code === 308
+
+fetch.Headers = Headers
+fetch.Request = Request
+fetch.Response = Response
+fetch.FetchError = FetchError
diff --git a/node_modules/minipass-fetch/lib/request.js b/node_modules/minipass-fetch/lib/request.js
new file mode 100644
index 0000000..278b278
--- /dev/null
+++ b/node_modules/minipass-fetch/lib/request.js
@@ -0,0 +1,263 @@
+'use strict'
+const Url = require('url')
+const Minipass = require('minipass')
+const Headers = require('./headers.js')
+const { exportNodeCompatibleHeaders } = Headers
+const Body = require('./body.js')
+const { clone, extractContentType, getTotalBytes } = Body
+
+const version = require('../package.json').version
+const defaultUserAgent =
+  `minipass-fetch/${version} (+https://github.com/isaacs/minipass-fetch)`
+
+const INTERNALS = Symbol('Request internals')
+
+const { parse: parseUrl, format: formatUrl } = Url
+
+const isRequest = input =>
+  typeof input === 'object' && typeof input[INTERNALS] === 'object'
+
+const isAbortSignal = signal => {
+  const proto = (
+    signal
+    && typeof signal === 'object'
+    && Object.getPrototypeOf(signal)
+  )
+  return !!(proto && proto.constructor.name === 'AbortSignal')
+}
+
+class Request extends Body {
+  constructor (input, init = {}) {
+    const parsedURL = isRequest(input) ? Url.parse(input.url)
+      : input && input.href ? Url.parse(input.href)
+      : Url.parse(`${input}`)
+
+    if (isRequest(input))
+      init = { ...input[INTERNALS], ...init }
+    else if (!input || typeof input === 'string')
+      input = {}
+
+    const method = (init.method || input.method || 'GET').toUpperCase()
+    const isGETHEAD = method === 'GET' || method === 'HEAD'
+
+    if ((init.body !== null && init.body !== undefined ||
+        isRequest(input) && input.body !== null) && isGETHEAD)
+      throw new TypeError('Request with GET/HEAD method cannot have body')
+
+    const inputBody = init.body !== null && init.body !== undefined ? init.body
+      : isRequest(input) && input.body !== null ? clone(input)
+      : null
+
+    super(inputBody, {
+      timeout: init.timeout || input.timeout || 0,
+      size: init.size || input.size || 0,
+    })
+
+    const headers = new Headers(init.headers || input.headers || {})
+
+    if (inputBody !== null && inputBody !== undefined &&
+        !headers.has('Content-Type')) {
+      const contentType = extractContentType(inputBody)
+      if (contentType)
+        headers.append('Content-Type', contentType)
+    }
+
+    const signal = 'signal' in init ? init.signal
+      : null
+
+    if (signal !== null && signal !== undefined && !isAbortSignal(signal))
+      throw new TypeError('Expected signal must be an instanceof AbortSignal')
+
+    // TLS specific options that are handled by node
+    const {
+      ca,
+      cert,
+      ciphers,
+      clientCertEngine,
+      crl,
+      dhparam,
+      ecdhCurve,
+      family,
+      honorCipherOrder,
+      key,
+      passphrase,
+      pfx,
+      rejectUnauthorized = process.env.NODE_TLS_REJECT_UNAUTHORIZED !== '0',
+      secureOptions,
+      secureProtocol,
+      servername,
+      sessionIdContext,
+    } = init
+
+    this[INTERNALS] = {
+      method,
+      redirect: init.redirect || input.redirect || 'follow',
+      headers,
+      parsedURL,
+      signal,
+      ca,
+      cert,
+      ciphers,
+      clientCertEngine,
+      crl,
+      dhparam,
+      ecdhCurve,
+      family,
+      honorCipherOrder,
+      key,
+      passphrase,
+      pfx,
+      rejectUnauthorized,
+      secureOptions,
+      secureProtocol,
+      servername,
+      sessionIdContext,
+    }
+
+    // node-fetch-only options
+    this.follow = init.follow !== undefined ? init.follow
+      : input.follow !== undefined ? input.follow
+      : 20
+    this.compress = init.compress !== undefined ? init.compress
+      : input.compress !== undefined ? input.compress
+      : true
+    this.counter = init.counter || input.counter || 0
+    this.agent = init.agent || input.agent
+  }
+
+  get method() {
+    return this[INTERNALS].method
+  }
+
+  get url() {
+    return formatUrl(this[INTERNALS].parsedURL)
+  }
+
+  get headers() {
+    return this[INTERNALS].headers
+  }
+
+  get redirect() {
+    return this[INTERNALS].redirect
+  }
+
+  get signal() {
+    return this[INTERNALS].signal
+  }
+
+  clone () {
+    return new Request(this)
+  }
+
+  get [Symbol.toStringTag] () {
+    return 'Request'
+  }
+
+  static getNodeRequestOptions (request) {
+    const parsedURL = request[INTERNALS].parsedURL
+    const headers = new Headers(request[INTERNALS].headers)
+
+    // fetch step 1.3
+    if (!headers.has('Accept'))
+      headers.set('Accept', '*/*')
+
+    // Basic fetch
+    if (!parsedURL.protocol || !parsedURL.hostname)
+      throw new TypeError('Only absolute URLs are supported')
+
+    if (!/^https?:$/.test(parsedURL.protocol))
+      throw new TypeError('Only HTTP(S) protocols are supported')
+
+    if (request.signal &&
+        Minipass.isStream(request.body) &&
+        typeof request.body.destroy !== 'function') {
+      throw new Error(
+        'Cancellation of streamed requests with AbortSignal is not supported')
+    }
+
+    // HTTP-network-or-cache fetch steps 2.4-2.7
+    const contentLengthValue =
+      (request.body === null || request.body === undefined) &&
+        /^(POST|PUT)$/i.test(request.method) ? '0'
+      : request.body !== null && request.body !== undefined
+        ? getTotalBytes(request)
+      : null
+
+    if (contentLengthValue)
+      headers.set('Content-Length', contentLengthValue + '')
+
+    // HTTP-network-or-cache fetch step 2.11
+    if (!headers.has('User-Agent'))
+      headers.set('User-Agent', defaultUserAgent)
+
+    // HTTP-network-or-cache fetch step 2.15
+    if (request.compress && !headers.has('Accept-Encoding'))
+      headers.set('Accept-Encoding', 'gzip,deflate')
+
+    const agent = typeof request.agent === 'function'
+      ? request.agent(parsedURL)
+      : request.agent
+
+    if (!headers.has('Connection') && !agent)
+      headers.set('Connection', 'close')
+
+    // TLS specific options that are handled by node
+    const {
+      ca,
+      cert,
+      ciphers,
+      clientCertEngine,
+      crl,
+      dhparam,
+      ecdhCurve,
+      family,
+      honorCipherOrder,
+      key,
+      passphrase,
+      pfx,
+      rejectUnauthorized,
+      secureOptions,
+      secureProtocol,
+      servername,
+      sessionIdContext,
+    } = request[INTERNALS]
+
+    // HTTP-network fetch step 4.2
+    // chunked encoding is handled by Node.js
+
+    return {
+      ...parsedURL,
+      method: request.method,
+      headers: exportNodeCompatibleHeaders(headers),
+      agent,
+      ca,
+      cert,
+      ciphers,
+      clientCertEngine,
+      crl,
+      dhparam,
+      ecdhCurve,
+      family,
+      honorCipherOrder,
+      key,
+      passphrase,
+      pfx,
+      rejectUnauthorized,
+      secureOptions,
+      secureProtocol,
+      servername,
+      sessionIdContext,
+    }
+  }
+}
+
+module.exports = Request
+
+Object.defineProperties(Request.prototype, {
+  method: { enumerable: true },
+  url: { enumerable: true },
+  headers: { enumerable: true },
+  redirect: { enumerable: true },
+  clone: { enumerable: true },
+  signal: { enumerable: true },
+})
diff --git a/node_modules/minipass-fetch/lib/response.js b/node_modules/minipass-fetch/lib/response.js
new file mode 100644
index 0000000..854f789
--- /dev/null
+++ b/node_modules/minipass-fetch/lib/response.js
@@ -0,0 +1,89 @@
+'use strict'
+const http = require('http')
+const { STATUS_CODES } = http
+
+const Headers = require('./headers.js')
+const Body = require('./body.js')
+const { clone, extractContentType } = Body
+
+const INTERNALS = Symbol('Response internals')
+
+class Response extends Body {
+  constructor (body = null, opts = {}) {
+    super(body, opts)
+
+    const status = opts.status || 200
+    const headers = new Headers(opts.headers)
+
+    if (body !== null && body !== undefined && !headers.has('Content-Type')) {
+      const contentType = extractContentType(body)
+      if (contentType)
+        headers.append('Content-Type', contentType)
+    }
+
+    this[INTERNALS] = {
+      url: opts.url,
+      status,
+      statusText: opts.statusText || STATUS_CODES[status],
+      headers,
+      counter: opts.counter,
+      trailer: Promise.resolve(opts.trailer || new Headers()),
+    }
+  }
+
+  get trailer () {
+    return this[INTERNALS].trailer
+  }
+
+  get url () {
+    return this[INTERNALS].url || ''
+  }
+
+  get status () {
+    return this[INTERNALS].status
+  }
+
+  get ok ()  {
+    return this[INTERNALS].status >= 200 && this[INTERNALS].status < 300
+  }
+
+  get redirected () {
+    return this[INTERNALS].counter > 0
+  }
+
+  get statusText () {
+    return this[INTERNALS].statusText
+  }
+
+  get headers () {
+    return this[INTERNALS].headers
+  }
+
+  clone () {
+    return new Response(clone(this), {
+      url: this.url,
+      status: this.status,
+      statusText: this.statusText,
+      headers: this.headers,
+      ok: this.ok,
+      redirected: this.redirected,
+      trailer: this.trailer,
+    })
+  }
+
+  get [Symbol.toStringTag] () {
+    return 'Response'
+  }
+}
+
+module.exports = Response
+
+Object.defineProperties(Response.prototype, {
+  url: { enumerable: true },
+  status: { enumerable: true },
+  ok: { enumerable: true },
+  redirected: { enumerable: true },
+  statusText: { enumerable: true },
+  headers: { enumerable: true },
+  clone: { enumerable: true },
+})
diff --git a/node_modules/minipass-fetch/package.json b/node_modules/minipass-fetch/package.json
new file mode 100644
index 0000000..1d7d9e4
--- /dev/null
+++ b/node_modules/minipass-fetch/package.json
@@ -0,0 +1,53 @@
+{
+  "name": "minipass-fetch",
+  "version": "1.4.1",
+  "description": "An implementation of window.fetch in Node.js using Minipass streams",
+  "license": "MIT",
+  "main": "lib/index.js",
+  "scripts": {
+    "test": "tap",
+    "snap": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags"
+  },
+  "tap": {
+    "coverage-map": "map.js",
+    "check-coverage": true
+  },
+  "devDependencies": {
+    "@ungap/url-search-params": "^0.1.2",
+    "abort-controller": "^3.0.0",
+    "abortcontroller-polyfill": "~1.3.0",
+    "form-data": "^2.5.1",
+    "parted": "^0.1.1",
+    "string-to-arraybuffer": "^1.0.2",
+    "tap": "^15.0.9",
+    "whatwg-url": "^7.0.0"
+  },
+  "dependencies": {
+    "minipass": "^3.1.0",
+    "minipass-sized": "^1.0.3",
+    "minizlib": "^2.0.0"
+  },
+  "optionalDependencies": {
+    "encoding": "^0.1.12"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/npm/minipass-fetch.git"
+  },
+  "keywords": [
+    "fetch",
+    "minipass",
+    "node-fetch",
+    "window.fetch"
+  ],
+  "files": [
+    "index.js",
+    "lib/*.js"
+  ],
+  "engines": {
+    "node": ">=8"
+  }
+}
diff --git a/node_modules/minipass-flush/LICENSE b/node_modules/minipass-flush/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/minipass-flush/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/minipass-flush/README.md b/node_modules/minipass-flush/README.md
new file mode 100644
index 0000000..7eea400
--- /dev/null
+++ b/node_modules/minipass-flush/README.md
@@ -0,0 +1,47 @@
+# minipass-flush
+
+A Minipass stream that calls a flush function before emitting 'end'
+
+## USAGE
+
+```js
+const Flush = require('minipass-flush')
+cons f = new Flush({
+  flush (cb) {
+    // call the cb when done, or return a promise
+    // the 'end' event will wait for it, along with
+    // close, finish, and prefinish.
+    // call the cb with an error, or return a rejecting
+    // promise to emit 'error' instead of doing the 'end'
+    return rerouteAllEncryptions().then(() => clearAllChannels())
+  },
+  // all other minipass options accepted as well
+})
+
+someDataSource.pipe(f).on('end', () => {
+  // proper flushing has been accomplished
+})
+
+// Or as a subclass implementing a 'flush' method:
+class MyFlush extends Flush {
+  flush (cb) {
+    // old fashioned callback style!
+    rerouteAllEncryptions(er => {
+      if (er)
+        return cb(er)
+      clearAllChannels(er => {
+        if (er)
+          cb(er)
+        cb()
+      })
+    })
+  }
+}
+```
+
+That's about it.
+
+If your `flush` method doesn't have to do anything asynchronous, then it's
+better to call the callback right away in this tick, rather than returning
+`Promise.resolve()`, so that the `end` event can happen as soon as
+possible.
diff --git a/node_modules/minipass-flush/index.js b/node_modules/minipass-flush/index.js
new file mode 100644
index 0000000..cb2537f
--- /dev/null
+++ b/node_modules/minipass-flush/index.js
@@ -0,0 +1,39 @@
+const Minipass = require('minipass')
+const _flush = Symbol('_flush')
+const _flushed = Symbol('_flushed')
+const _flushing = Symbol('_flushing')
+class Flush extends Minipass {
+  constructor (opt = {}) {
+    if (typeof opt === 'function')
+      opt = { flush: opt }
+
+    super(opt)
+
+    // or extend this class and provide a 'flush' method in your subclass
+    if (typeof opt.flush !== 'function' && typeof this.flush !== 'function')
+      throw new TypeError('must provide flush function in options')
+
+    this[_flush] = opt.flush || this.flush
+  }
+
+  emit (ev, ...data) {
+    if ((ev !== 'end' && ev !== 'finish') || this[_flushed])
+      return super.emit(ev, ...data)
+
+    if (this[_flushing])
+      return
+
+    this[_flushing] = true
+
+    const afterFlush = er => {
+      this[_flushed] = true
+      er ? super.emit('error', er) : super.emit('end')
+    }
+
+    const ret = this[_flush](afterFlush)
+    if (ret && ret.then)
+      ret.then(() => afterFlush(), er => afterFlush(er))
+  }
+}
+
+module.exports = Flush
diff --git a/node_modules/minipass-flush/package.json b/node_modules/minipass-flush/package.json
new file mode 100644
index 0000000..09127d0
--- /dev/null
+++ b/node_modules/minipass-flush/package.json
@@ -0,0 +1,39 @@
+{
+  "name": "minipass-flush",
+  "version": "1.0.5",
+  "description": "A Minipass stream that calls a flush function before emitting 'end'",
+  "author": "Isaac Z. Schlueter <i@izs.me> (https://izs.me)",
+  "license": "ISC",
+  "scripts": {
+    "test": "tap",
+    "snap": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags"
+  },
+  "tap": {
+    "check-coverage": true
+  },
+  "devDependencies": {
+    "tap": "^14.6.9"
+  },
+  "dependencies": {
+    "minipass": "^3.0.0"
+  },
+  "files": [
+    "index.js"
+  ],
+  "main": "index.js",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/isaacs/minipass-flush.git"
+  },
+  "keywords": [
+    "minipass",
+    "flush",
+    "stream"
+  ],
+  "engines": {
+    "node": ">= 8"
+  }
+}
diff --git a/node_modules/minipass-pipeline/LICENSE b/node_modules/minipass-pipeline/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/minipass-pipeline/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/minipass-pipeline/README.md b/node_modules/minipass-pipeline/README.md
new file mode 100644
index 0000000..12daa99
--- /dev/null
+++ b/node_modules/minipass-pipeline/README.md
@@ -0,0 +1,69 @@
+# minipass-pipeline
+
+Create a pipeline of streams using Minipass.
+
+Calls `.pipe()` on all the streams in the list.  Returns a stream where
+writes got to the first pipe in the chain, and reads are from the last.
+
+Errors are proxied along the chain and emitted on the Pipeline stream.
+
+## USAGE
+
+```js
+const Pipeline = require('minipass-pipeline')
+
+// the list of streams to pipeline together,
+// a bit like `input | transform | output` in bash
+const p = new Pipeline(input, transform, output)
+
+p.write('foo') // writes to input
+p.on('data', chunk => doSomething()) // reads from output stream
+
+// less contrived example (but still pretty contrived)...
+const decode = new bunzipDecoder()
+const unpack = tar.extract({ cwd: 'target-dir' })
+const tbz = new Pipeline(decode, unpack)
+
+fs.createReadStream('archive.tbz').pipe(tbz)
+
+// specify any minipass options if you like, as the first argument
+// it'll only try to pipeline event emitters with a .pipe() method
+const p = new Pipeline({ objectMode: true }, input, transform, output)
+
+// If you don't know the things to pipe in right away, that's fine.
+// use p.push(stream) to add to the end, or p.unshift(stream) to the front
+const databaseDecoderStreamDoohickey = (connectionInfo) => {
+  const p = new Pipeline()
+  logIntoDatabase(connectionInfo).then(connection => {
+    initializeDecoderRing(connectionInfo).then(decoderRing => {
+      p.push(connection, decoderRing)
+      getUpstreamSource(upstream => {
+        p.unshift(upstream)
+      })
+    })
+  })
+  // return to caller right away
+  // emitted data will be upstream -> connection -> decoderRing pipeline
+  return p
+}
+```
+
+Pipeline is a [minipass](http://npm.im/minipass) stream, so it's as
+synchronous as the streams it wraps.  It will buffer data until there is a
+reader, but no longer, so make sure to attach your listeners before you
+pipe it somewhere else.
+
+## `new Pipeline(opts = {}, ...streams)`
+
+Create a new Pipeline with the specified Minipass options and any streams
+provided.
+
+## `pipeline.push(stream, ...)`
+
+Attach one or more streams to the pipeline at the end (read) side of the
+pipe chain.
+
+## `pipeline.unshift(stream, ...)`
+
+Attach one or more streams to the pipeline at the start (write) side of the
+pipe chain.
diff --git a/node_modules/minipass-pipeline/index.js b/node_modules/minipass-pipeline/index.js
new file mode 100644
index 0000000..b94ea14
--- /dev/null
+++ b/node_modules/minipass-pipeline/index.js
@@ -0,0 +1,128 @@
+const Minipass = require('minipass')
+const EE = require('events')
+const isStream = s => s && s instanceof EE && (
+  typeof s.pipe === 'function' || // readable
+  (typeof s.write === 'function' && typeof s.end === 'function') // writable
+)
+
+const _head = Symbol('_head')
+const _tail = Symbol('_tail')
+const _linkStreams = Symbol('_linkStreams')
+const _setHead = Symbol('_setHead')
+const _setTail = Symbol('_setTail')
+const _onError = Symbol('_onError')
+const _onData = Symbol('_onData')
+const _onEnd = Symbol('_onEnd')
+const _onDrain = Symbol('_onDrain')
+const _streams = Symbol('_streams')
+class Pipeline extends Minipass {
+  constructor (opts, ...streams) {
+    if (isStream(opts)) {
+      streams.unshift(opts)
+      opts = {}
+    }
+
+    super(opts)
+    this[_streams] = []
+    if (streams.length)
+      this.push(...streams)
+  }
+
+  [_linkStreams] (streams) {
+    // reduce takes (left,right), and we return right to make it the
+    // new left value.
+    return streams.reduce((src, dest) => {
+      src.on('error', er => dest.emit('error', er))
+      src.pipe(dest)
+      return dest
+    })
+  }
+
+  push (...streams) {
+    this[_streams].push(...streams)
+    if (this[_tail])
+      streams.unshift(this[_tail])
+
+    const linkRet = this[_linkStreams](streams)
+
+    this[_setTail](linkRet)
+    if (!this[_head])
+      this[_setHead](streams[0])
+  }
+
+  unshift (...streams) {
+    this[_streams].unshift(...streams)
+    if (this[_head])
+      streams.push(this[_head])
+
+    const linkRet = this[_linkStreams](streams)
+    this[_setHead](streams[0])
+    if (!this[_tail])
+      this[_setTail](linkRet)
+  }
+
+  destroy (er) {
+    // set fire to the whole thing.
+    this[_streams].forEach(s =>
+      typeof s.destroy === 'function' && s.destroy())
+    return super.destroy(er)
+  }
+
+  // readable interface -> tail
+  [_setTail] (stream) {
+    this[_tail] = stream
+    stream.on('error', er => this[_onError](stream, er))
+    stream.on('data', chunk => this[_onData](stream, chunk))
+    stream.on('end', () => this[_onEnd](stream))
+    stream.on('finish', () => this[_onEnd](stream))
+  }
+
+  // errors proxied down the pipeline
+  // they're considered part of the "read" interface
+  [_onError] (stream, er) {
+    if (stream === this[_tail])
+      this.emit('error', er)
+  }
+  [_onData] (stream, chunk) {
+    if (stream === this[_tail])
+      super.write(chunk)
+  }
+  [_onEnd] (stream) {
+    if (stream === this[_tail])
+      super.end()
+  }
+  pause () {
+    super.pause()
+    return this[_tail] && this[_tail].pause && this[_tail].pause()
+  }
+
+  // NB: Minipass calls its internal private [RESUME] method during
+  // pipe drains, to avoid hazards where stream.resume() is overridden.
+  // Thus, we need to listen to the resume *event*, not override the
+  // resume() method, and proxy *that* to the tail.
+  emit (ev, ...args) {
+    if (ev === 'resume' && this[_tail] && this[_tail].resume)
+      this[_tail].resume()
+    return super.emit(ev, ...args)
+  }
+
+  // writable interface -> head
+  [_setHead] (stream) {
+    this[_head] = stream
+    stream.on('drain', () => this[_onDrain](stream))
+  }
+  [_onDrain] (stream) {
+    if (stream === this[_head])
+      this.emit('drain')
+  }
+  write (chunk, enc, cb) {
+    return this[_head].write(chunk, enc, cb) &&
+      (this.flowing || this.buffer.length === 0)
+  }
+  end (chunk, enc, cb) {
+    this[_head].end(chunk, enc, cb)
+    return this
+  }
+}
+
+module.exports = Pipeline
diff --git a/node_modules/minipass-pipeline/package.json b/node_modules/minipass-pipeline/package.json
new file mode 100644
index 0000000..d608dc6
--- /dev/null
+++ b/node_modules/minipass-pipeline/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "minipass-pipeline",
+  "version": "1.2.4",
+  "description": "create a pipeline of streams using Minipass",
+  "author": "Isaac Z. Schlueter <i@izs.me> (https://izs.me)",
+  "license": "ISC",
+  "scripts": {
+    "test": "tap",
+    "snap": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags"
+  },
+  "tap": {
+    "check-coverage": true
+  },
+  "devDependencies": {
+    "tap": "^14.6.9"
+  },
+  "dependencies": {
+    "minipass": "^3.0.0"
+  },
+  "files": [
+    "index.js"
+  ],
+  "engines": {
+    "node": ">=8"
+  }
+}
diff --git a/node_modules/minipass-sized/.npmignore b/node_modules/minipass-sized/.npmignore
new file mode 100644
index 0000000..2bec044
--- /dev/null
+++ b/node_modules/minipass-sized/.npmignore
@@ -0,0 +1,22 @@
+# ignore most things, include some others
+/*
+/.*
+
+!bin/
+!lib/
+!docs/
+!package.json
+!package-lock.json
+!README.md
+!CONTRIBUTING.md
+!LICENSE
+!CHANGELOG.md
+!example/
+!scripts/
+!tap-snapshots/
+!test/
+!.travis.yml
+!.gitignore
+!.gitattributes
+!coverage-map.js
+!index.js
diff --git a/node_modules/minipass-sized/LICENSE b/node_modules/minipass-sized/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/minipass-sized/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/minipass-sized/README.md b/node_modules/minipass-sized/README.md
new file mode 100644
index 0000000..6da403e
--- /dev/null
+++ b/node_modules/minipass-sized/README.md
@@ -0,0 +1,28 @@
+# minipass-sized
+
+A Minipass stream that raises an error if you get a different number of
+bytes than expected.
+
+## USAGE
+
+Use just like any old [minipass](http://npm.im/minipass) stream, but
+provide a `size` option to the constructor.
+
+The `size` option must be a positive integer, smaller than
+`Number.MAX_SAFE_INTEGER`.
+
+```js
+const MinipassSized = require('minipass-sized')
+// figure out how much data you expect to get
+const expectedSize = +headers['content-length']
+const stream = new MinipassSized({ size: expectedSize })
+stream.on('error', er => {
+  // if it's the wrong size, then this will raise an error with
+  // { found: <number>, expect: <number>, code: 'EBADSIZE' }
+})
+response.pipe(stream)
+```
+
+Caveats: this does not work with `objectMode` streams, and will throw a
+`TypeError` from the constructor if the size argument is missing or
+invalid.
diff --git a/node_modules/minipass-sized/index.js b/node_modules/minipass-sized/index.js
new file mode 100644
index 0000000..a0c8acd
--- /dev/null
+++ b/node_modules/minipass-sized/index.js
@@ -0,0 +1,67 @@
+const Minipass = require('minipass')
+
+class SizeError extends Error {
+  constructor (found, expect) {
+    super(`Bad data size: expected ${expect} bytes, but got ${found}`)
+    this.expect = expect
+    this.found = found
+    this.code = 'EBADSIZE'
+	  Error.captureStackTrace(this, this.constructor)
+  }
+  get name () {
+    return 'SizeError'
+  }
+}
+
+class MinipassSized extends Minipass {
+  constructor (options = {}) {
+    super(options)
+
+    if (options.objectMode)
+      throw new TypeError(`${
+        this.constructor.name
+      } streams only work with string and buffer data`)
+
+    this.found = 0
+    this.expect = options.size
+    if (typeof this.expect !== 'number' ||
+        this.expect > Number.MAX_SAFE_INTEGER ||
+        isNaN(this.expect) ||
+        this.expect < 0 ||
+        !isFinite(this.expect) ||
+        this.expect !== Math.floor(this.expect))
+      throw new Error('invalid expected size: ' + this.expect)
+  }
+
+  write (chunk, encoding, cb) {
+    const buffer = Buffer.isBuffer(chunk) ? chunk
+      : typeof chunk === 'string' ?
+        Buffer.from(chunk, typeof encoding === 'string' ? encoding : 'utf8')
+      : chunk
+
+    if (!Buffer.isBuffer(buffer)) {
+      this.emit('error', new TypeError(`${
+        this.constructor.name
+      } streams only work with string and buffer data`))
+      return false
+    }
+
+    this.found += buffer.length
+    if (this.found > this.expect)
+      this.emit('error', new SizeError(this.found, this.expect))
+
+    return super.write(chunk, encoding, cb)
+  }
+
+  emit (ev, ...data) {
+    if (ev === 'end') {
+      if (this.found !== this.expect)
+        this.emit('error', new SizeError(this.found, this.expect))
+    }
+    return super.emit(ev, ...data)
+  }
+}
+
+MinipassSized.SizeError = SizeError
+
+module.exports = MinipassSized
diff --git a/node_modules/minipass-sized/package-lock.json b/node_modules/minipass-sized/package-lock.json
new file mode 100644
index 0000000..944b285
--- /dev/null
+++ b/node_modules/minipass-sized/package-lock.json
@@ -0,0 +1,3464 @@
+{
+  "name": "minipass-sized",
+  "version": "1.0.3",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "@babel/code-frame": {
+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.5.5.tgz",
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+      "dev": true,
+      "requires": {
+        "@babel/highlight": "^7.0.0"
+      }
+    },
+    "@babel/generator": {
+      "version": "7.6.0",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.6.0.tgz",
+      "integrity": "sha512-Ms8Mo7YBdMMn1BYuNtKuP/z0TgEIhbcyB8HVR6PPNYp4P61lMsABiS4A3VG1qznjXVCf3r+fVHhm4efTYVsySA==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.6.0",
+        "jsesc": "^2.5.1",
+        "lodash": "^4.17.13",
+        "source-map": "^0.5.0",
+        "trim-right": "^1.0.1"
+      },
+      "dependencies": {
+        "source-map": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
+          "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+          "dev": true
+        }
+      }
+    },
+    "@babel/helper-function-name": {
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.1.0.tgz",
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+      "dev": true,
+      "requires": {
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+        "@babel/template": "^7.1.0",
+        "@babel/types": "^7.0.0"
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+    "@babel/helper-get-function-arity": {
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+      "dev": true,
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+      "dev": true,
+      "requires": {
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+      }
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+      "dev": true,
+      "requires": {
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^4.0.0"
+      }
+    },
+    "@babel/parser": {
+      "version": "7.6.0",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.6.0.tgz",
+      "integrity": "sha512-+o2q111WEx4srBs7L9eJmcwi655eD8sXniLqMB93TBK9GrNzGrxDWSjiqz2hLU0Ha8MTXFIP0yd9fNdP+m43ZQ==",
+      "dev": true
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+      }
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+      "dev": true,
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+      "dev": true,
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+        "y18n": "^4.0.0",
+        "yargs-parser": "^13.1.1"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+          "dev": true
+        },
+        "cliui": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
+          "integrity": "sha512-PYeGSEmmHM6zvoef2w8TPzlrnNpXIjTipYK780YswmIP9vjxmd6Y2a3CB2Ks6/AU8NHjZugXvo8w3oWM2qnwXA==",
+          "dev": true,
+          "requires": {
+            "string-width": "^3.1.0",
+            "strip-ansi": "^5.2.0",
+            "wrap-ansi": "^5.1.0"
+          }
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "dev": true,
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        },
+        "wrap-ansi": {
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz",
+          "integrity": "sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.0",
+            "string-width": "^3.0.0",
+            "strip-ansi": "^5.0.0"
+          }
+        }
+      }
+    },
+    "yargs-parser": {
+      "version": "13.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz",
+      "integrity": "sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==",
+      "dev": true,
+      "requires": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
+      }
+    },
+    "yn": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz",
+      "integrity": "sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==",
+      "dev": true
+    }
+  }
+}
diff --git a/node_modules/minipass-sized/package.json b/node_modules/minipass-sized/package.json
new file mode 100644
index 0000000..a3257fd
--- /dev/null
+++ b/node_modules/minipass-sized/package.json
@@ -0,0 +1,39 @@
+{
+  "name": "minipass-sized",
+  "version": "1.0.3",
+  "description": "A Minipass stream that raises an error if you get a different number of bytes than expected",
+  "author": "Isaac Z. Schlueter <i@izs.me> (https://izs.me)",
+  "license": "ISC",
+  "scripts": {
+    "test": "tap",
+    "snap": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags"
+  },
+  "tap": {
+    "check-coverage": true
+  },
+  "devDependencies": {
+    "tap": "^14.6.4"
+  },
+  "dependencies": {
+    "minipass": "^3.0.0"
+  },
+  "main": "index.js",
+  "keywords": [
+    "minipass",
+    "size",
+    "length"
+  ],
+  "directories": {
+    "test": "test"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/isaacs/minipass-sized.git"
+  },
+  "engines": {
+    "node": ">=8"
+  }
+}
diff --git a/node_modules/minipass-sized/test/basic.js b/node_modules/minipass-sized/test/basic.js
new file mode 100644
index 0000000..bbdcada
--- /dev/null
+++ b/node_modules/minipass-sized/test/basic.js
@@ -0,0 +1,83 @@
+const t = require('tap')
+const MPS = require('../')
+
+t.test('ok if size checks out', t => {
+  const mps = new MPS({ size: 4 })
+
+  mps.write(Buffer.from('a').toString('hex'), 'hex')
+  mps.write(Buffer.from('sd'))
+  mps.end('f')
+  return mps.concat().then(data => t.equal(data.toString(), 'asdf'))
+})
+
+t.test('error if size exceeded', t => {
+  const mps = new MPS({ size: 1 })
+  mps.on('error', er => {
+    t.match(er, {
+      message: 'Bad data size: expected 1 bytes, but got 4',
+      found: 4,
+      expect: 1,
+      code: 'EBADSIZE',
+      name: 'SizeError',
+    })
+    t.end()
+  })
+  mps.write('asdf')
+})
+
+t.test('error if size is not met', t => {
+  const mps = new MPS({ size: 999 })
+  t.throws(() => mps.end(), {
+    message: 'Bad data size: expected 999 bytes, but got 0',
+    found: 0,
+    name: 'SizeError',
+    expect: 999,
+    code: 'EBADSIZE',
+  })
+  t.end()
+})
+
+t.test('error if non-string/buffer is written', t => {
+  const mps = new MPS({size:1})
+  mps.on('error', er => {
+    t.match(er, {
+      message: 'MinipassSized streams only work with string and buffer data'
+    })
+    t.end()
+  })
+  mps.write({some:'object'})
+})
+
+t.test('projectiles', t => {
+  t.throws(() => new MPS(), {
+    message: 'invalid expected size: undefined'
+  }, 'size is required')
+  t.throws(() => new MPS({size: true}), {
+    message: 'invalid expected size: true'
+  }, 'size must be number')
+  t.throws(() => new MPS({size: NaN}), {
+    message: 'invalid expected size: NaN'
+  }, 'size must not be NaN')
+  t.throws(() => new MPS({size:1.2}), {
+    message: 'invalid expected size: 1.2'
+  }, 'size must be integer')
+  t.throws(() => new MPS({size: Infinity}), {
+    message: 'invalid expected size: Infinity'
+  }, 'size must be finite')
+  t.throws(() => new MPS({size: -1}), {
+    message: 'invalid expected size: -1'
+  }, 'size must be positive')
+  t.throws(() => new MPS({objectMode: true}), {
+    message: 'MinipassSized streams only work with string and buffer data'
+  }, 'no objectMode')
+  t.throws(() => new MPS({size: Number.MAX_SAFE_INTEGER + 1000000}), {
+    message: 'invalid expected size: 9007199255740992'
+  })
+  t.end()
+})
+
+t.test('exports SizeError class', t => {
+  t.isa(MPS.SizeError, 'function')
+  t.isa(MPS.SizeError.prototype, Error)
+  t.end()
+})
diff --git a/node_modules/minipass/LICENSE b/node_modules/minipass/LICENSE
new file mode 100644
index 0000000..bf1dece
--- /dev/null
+++ b/node_modules/minipass/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) 2017-2022 npm, Inc., Isaac Z. Schlueter, and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/minipass/README.md b/node_modules/minipass/README.md
new file mode 100644
index 0000000..2cde46c
--- /dev/null
+++ b/node_modules/minipass/README.md
@@ -0,0 +1,728 @@
+# minipass
+
+A _very_ minimal implementation of a [PassThrough
+stream](https://nodejs.org/api/stream.html#stream_class_stream_passthrough)
+
+[It's very
+fast](https://docs.google.com/spreadsheets/d/1oObKSrVwLX_7Ut4Z6g3fZW-AX1j1-k6w-cDsrkaSbHM/edit#gid=0)
+for objects, strings, and buffers.
+
+Supports `pipe()`ing (including multi-`pipe()` and backpressure transmission),
+buffering data until either a `data` event handler or `pipe()` is added (so
+you don't lose the first chunk), and most other cases where PassThrough is
+a good idea.
+
+There is a `read()` method, but it's much more efficient to consume data
+from this stream via `'data'` events or by calling `pipe()` into some other
+stream.  Calling `read()` requires the buffer to be flattened in some
+cases, which requires copying memory.
+
+If you set `objectMode: true` in the options, then whatever is written will
+be emitted.  Otherwise, it'll do a minimal amount of Buffer copying to
+ensure proper Streams semantics when `read(n)` is called.
+
+`objectMode` can also be set by doing `stream.objectMode = true`, or by
+writing any non-string/non-buffer data.  `objectMode` cannot be set to
+false once it is set.
+
+This is not a `through` or `through2` stream.  It doesn't transform the
+data, it just passes it right through.  If you want to transform the data,
+extend the class, and override the `write()` method.  Once you're done
+transforming the data however you want, call `super.write()` with the
+transform output.
+
+For some examples of streams that extend Minipass in various ways, check
+out:
+
+- [minizlib](http://npm.im/minizlib)
+- [fs-minipass](http://npm.im/fs-minipass)
+- [tar](http://npm.im/tar)
+- [minipass-collect](http://npm.im/minipass-collect)
+- [minipass-flush](http://npm.im/minipass-flush)
+- [minipass-pipeline](http://npm.im/minipass-pipeline)
+- [tap](http://npm.im/tap)
+- [tap-parser](http://npm.im/tap-parser)
+- [treport](http://npm.im/treport)
+- [minipass-fetch](http://npm.im/minipass-fetch)
+- [pacote](http://npm.im/pacote)
+- [make-fetch-happen](http://npm.im/make-fetch-happen)
+- [cacache](http://npm.im/cacache)
+- [ssri](http://npm.im/ssri)
+- [npm-registry-fetch](http://npm.im/npm-registry-fetch)
+- [minipass-json-stream](http://npm.im/minipass-json-stream)
+- [minipass-sized](http://npm.im/minipass-sized)
+
+## Differences from Node.js Streams
+
+There are several things that make Minipass streams different from (and in
+some ways superior to) Node.js core streams.
+
+Please read these caveats if you are familiar with node-core streams and
+intend to use Minipass streams in your programs.
+
+You can avoid most of these differences entirely (for a very
+small performance penalty) by setting `{async: true}` in the
+constructor options.
+
+### Timing
+
+Minipass streams are designed to support synchronous use-cases.  Thus, data
+is emitted as soon as it is available, always.  It is buffered until read,
+but no longer.  Another way to look at it is that Minipass streams are
+exactly as synchronous as the logic that writes into them.
+
+This can be surprising if your code relies on `PassThrough.write()` always
+providing data on the next tick rather than the current one, or being able
+to call `resume()` and not have the entire buffer disappear immediately.
+
+However, without this synchronicity guarantee, there would be no way for
+Minipass to achieve the speeds it does, or support the synchronous use
+cases that it does.  Simply put, waiting takes time.
+
+This non-deferring approach makes Minipass streams much easier to reason
+about, especially in the context of Promises and other flow-control
+mechanisms.
+
+Example:
+
+```js
+const Minipass = require('minipass')
+const stream = new Minipass({ async: true })
+stream.on('data', () => console.log('data event'))
+console.log('before write')
+stream.write('hello')
+console.log('after write')
+// output:
+// before write
+// data event
+// after write
+```
+
+### Exception: Async Opt-In
+
+If you wish to have a Minipass stream with behavior that more
+closely mimics Node.js core streams, you can set the stream in
+async mode either by setting `async: true` in the constructor
+options, or by setting `stream.async = true` later on.
+
+```js
+const Minipass = require('minipass')
+const asyncStream = new Minipass({ async: true })
+asyncStream.on('data', () => console.log('data event'))
+console.log('before write')
+asyncStream.write('hello')
+console.log('after write')
+// output:
+// before write
+// after write
+// data event <-- this is deferred until the next tick
+```
+
+Switching _out_ of async mode is unsafe, as it could cause data
+corruption, and so is not enabled.  Example:
+
+```js
+const Minipass = require('minipass')
+const stream = new Minipass({ encoding: 'utf8' })
+stream.on('data', chunk => console.log(chunk))
+stream.async = true
+console.log('before writes')
+stream.write('hello')
+setStreamSyncAgainSomehow(stream) // <-- this doesn't actually exist!
+stream.write('world')
+console.log('after writes')
+// hypothetical output would be:
+// before writes
+// world
+// after writes
+// hello
+// NOT GOOD!
+```
+
+To avoid this problem, once set into async mode, any attempt to
+make the stream sync again will be ignored.
+
+```js
+const Minipass = require('minipass')
+const stream = new Minipass({ encoding: 'utf8' })
+stream.on('data', chunk => console.log(chunk))
+stream.async = true
+console.log('before writes')
+stream.write('hello')
+stream.async = false // <-- no-op, stream already async
+stream.write('world')
+console.log('after writes')
+// actual output:
+// before writes
+// after writes
+// hello
+// world
+```
+
+### No High/Low Water Marks
+
+Node.js core streams will optimistically fill up a buffer, returning `true`
+on all writes until the limit is hit, even if the data has nowhere to go.
+Then, they will not attempt to draw more data in until the buffer size dips
+below a minimum value.
+
+Minipass streams are much simpler.  The `write()` method will return `true`
+if the data has somewhere to go (which is to say, given the timing
+guarantees, that the data is already there by the time `write()` returns).
+
+If the data has nowhere to go, then `write()` returns false, and the data
+sits in a buffer, to be drained out immediately as soon as anyone consumes
+it.
+
+Since nothing is ever buffered unnecessarily, there is much less
+copying data, and less bookkeeping about buffer capacity levels.
+
+### Hazards of Buffering (or: Why Minipass Is So Fast)
+
+Since data written to a Minipass stream is immediately written all the way
+through the pipeline, and `write()` always returns true/false based on
+whether the data was fully flushed, backpressure is communicated
+immediately to the upstream caller.  This minimizes buffering.
+
+Consider this case:
+
+```js
+const {PassThrough} = require('stream')
+const p1 = new PassThrough({ highWaterMark: 1024 })
+const p2 = new PassThrough({ highWaterMark: 1024 })
+const p3 = new PassThrough({ highWaterMark: 1024 })
+const p4 = new PassThrough({ highWaterMark: 1024 })
+
+p1.pipe(p2).pipe(p3).pipe(p4)
+p4.on('data', () => console.log('made it through'))
+
+// this returns false and buffers, then writes to p2 on next tick (1)
+// p2 returns false and buffers, pausing p1, then writes to p3 on next tick (2)
+// p3 returns false and buffers, pausing p2, then writes to p4 on next tick (3)
+// p4 returns false and buffers, pausing p3, then emits 'data' and 'drain'
+// on next tick (4)
+// p3 sees p4's 'drain' event, and calls resume(), emitting 'resume' and
+// 'drain' on next tick (5)
+// p2 sees p3's 'drain', calls resume(), emits 'resume' and 'drain' on next tick (6)
+// p1 sees p2's 'drain', calls resume(), emits 'resume' and 'drain' on next
+// tick (7)
+
+p1.write(Buffer.alloc(2048)) // returns false
+```
+
+Along the way, the data was buffered and deferred at each stage, and
+multiple event deferrals happened, for an unblocked pipeline where it was
+perfectly safe to write all the way through!
+
+Furthermore, setting a `highWaterMark` of `1024` might lead someone reading
+the code to think an advisory maximum of 1KiB is being set for the
+pipeline.  However, the actual advisory buffering level is the _sum_ of
+`highWaterMark` values, since each one has its own bucket.
+
+Consider the Minipass case:
+
+```js
+const m1 = new Minipass()
+const m2 = new Minipass()
+const m3 = new Minipass()
+const m4 = new Minipass()
+
+m1.pipe(m2).pipe(m3).pipe(m4)
+m4.on('data', () => console.log('made it through'))
+
+// m1 is flowing, so it writes the data to m2 immediately
+// m2 is flowing, so it writes the data to m3 immediately
+// m3 is flowing, so it writes the data to m4 immediately
+// m4 is flowing, so it fires the 'data' event immediately, returns true
+// m4's write returned true, so m3 is still flowing, returns true
+// m3's write returned true, so m2 is still flowing, returns true
+// m2's write returned true, so m1 is still flowing, returns true
+// No event deferrals or buffering along the way!
+
+m1.write(Buffer.alloc(2048)) // returns true
+```
+
+It is extremely unlikely that you _don't_ want to buffer any data written,
+or _ever_ buffer data that can be flushed all the way through.  Neither
+node-core streams nor Minipass ever fail to buffer written data, but
+node-core streams do a lot of unnecessary buffering and pausing.
+
+As always, the faster implementation is the one that does less stuff and
+waits less time to do it.
+
+### Immediately emit `end` for empty streams (when not paused)
+
+If a stream is not paused, and `end()` is called before writing any data
+into it, then it will emit `end` immediately.
+
+If you have logic that occurs on the `end` event which you don't want to
+potentially happen immediately (for example, closing file descriptors,
+moving on to the next entry in an archive parse stream, etc.) then be sure
+to call `stream.pause()` on creation, and then `stream.resume()` once you
+are ready to respond to the `end` event.
+
+However, this is _usually_ not a problem because:
+
+### Emit `end` When Asked
+
+One hazard of immediately emitting `'end'` is that you may not yet have had
+a chance to add a listener.  In order to avoid this hazard, Minipass
+streams safely re-emit the `'end'` event if a new listener is added after
+`'end'` has been emitted.
+
+Ie, if you do `stream.on('end', someFunction)`, and the stream has already
+emitted `end`, then it will call the handler right away.  (You can think of
+this somewhat like attaching a new `.then(fn)` to a previously-resolved
+Promise.)
+
+To prevent calling handlers multiple times who would not expect multiple
+ends to occur, all listeners are removed from the `'end'` event whenever it
+is emitted.
+
+### Emit `error` When Asked
+
+The most recent error object passed to the `'error'` event is
+stored on the stream.  If a new `'error'` event handler is added,
+and an error was previously emitted, then the event handler will
+be called immediately (or on `process.nextTick` in the case of
+async streams).
+
+This makes it much more difficult to end up trying to interact
+with a broken stream, if the error handler is added after an
+error was previously emitted.
+
+### Impact of "immediate flow" on Tee-streams
+
+A "tee stream" is a stream piping to multiple destinations:
+
+```js
+const tee = new Minipass()
+t.pipe(dest1)
+t.pipe(dest2)
+t.write('foo') // goes to both destinations
+```
+
+Since Minipass streams _immediately_ process any pending data through the
+pipeline when a new pipe destination is added, this can have surprising
+effects, especially when a stream comes in from some other function and may
+or may not have data in its buffer.
+
+```js
+// WARNING! WILL LOSE DATA!
+const src = new Minipass()
+src.write('foo')
+src.pipe(dest1) // 'foo' chunk flows to dest1 immediately, and is gone
+src.pipe(dest2) // gets nothing!
+```
+
+One solution is to create a dedicated tee-stream junction that pipes to
+both locations, and then pipe to _that_ instead.
+
+```js
+// Safe example: tee to both places
+const src = new Minipass()
+src.write('foo')
+const tee = new Minipass()
+tee.pipe(dest1)
+tee.pipe(dest2)
+src.pipe(tee) // tee gets 'foo', pipes to both locations
+```
+
+The same caveat applies to `on('data')` event listeners.  The first one
+added will _immediately_ receive all of the data, leaving nothing for the
+second:
+
+```js
+// WARNING! WILL LOSE DATA!
+const src = new Minipass()
+src.write('foo')
+src.on('data', handler1) // receives 'foo' right away
+src.on('data', handler2) // nothing to see here!
+```
+
+Using a dedicated tee-stream can be used in this case as well:
+
+```js
+// Safe example: tee to both data handlers
+const src = new Minipass()
+src.write('foo')
+const tee = new Minipass()
+tee.on('data', handler1)
+tee.on('data', handler2)
+src.pipe(tee)
+```
+
+All of the hazards in this section are avoided by setting `{
+async: true }` in the Minipass constructor, or by setting
+`stream.async = true` afterwards.  Note that this does add some
+overhead, so should only be done in cases where you are willing
+to lose a bit of performance in order to avoid having to refactor
+program logic.
+
+## USAGE
+
+It's a stream!  Use it like a stream and it'll most likely do what you
+want.
+
+```js
+const Minipass = require('minipass')
+const mp = new Minipass(options) // optional: { encoding, objectMode }
+mp.write('foo')
+mp.pipe(someOtherStream)
+mp.end('bar')
+```
+
+### OPTIONS
+
+* `encoding` How would you like the data coming _out_ of the stream to be
+  encoded?  Accepts any values that can be passed to `Buffer.toString()`.
+* `objectMode` Emit data exactly as it comes in.  This will be flipped on
+  by default if you write() something other than a string or Buffer at any
+  point.  Setting `objectMode: true` will prevent setting any encoding
+  value.
+* `async` Defaults to `false`.  Set to `true` to defer data
+  emission until next tick.  This reduces performance slightly,
+  but makes Minipass streams use timing behavior closer to Node
+  core streams.  See [Timing](#timing) for more details.
+
+### API
+
+Implements the user-facing portions of Node.js's `Readable` and `Writable`
+streams.
+
+### Methods
+
+* `write(chunk, [encoding], [callback])` - Put data in.  (Note that, in the
+  base Minipass class, the same data will come out.)  Returns `false` if
+  the stream will buffer the next write, or true if it's still in "flowing"
+  mode.
+* `end([chunk, [encoding]], [callback])` - Signal that you have no more
+  data to write.  This will queue an `end` event to be fired when all the
+  data has been consumed.
+* `setEncoding(encoding)` - Set the encoding for data coming of the stream.
+  This can only be done once.
+* `pause()` - No more data for a while, please.  This also prevents `end`
+  from being emitted for empty streams until the stream is resumed.
+* `resume()` - Resume the stream.  If there's data in the buffer, it is all
+  discarded.  Any buffered events are immediately emitted.
+* `pipe(dest)` - Send all output to the stream provided.  When
+  data is emitted, it is immediately written to any and all pipe
+  destinations.  (Or written on next tick in `async` mode.)
+* `unpipe(dest)` - Stop piping to the destination stream.  This
+  is immediate, meaning that any asynchronously queued data will
+  _not_ make it to the destination when running in `async` mode.
+    * `options.end` - Boolean, end the destination stream when
+      the source stream ends.  Default `true`.
+    * `options.proxyErrors` - Boolean, proxy `error` events from
+      the source stream to the destination stream.  Note that
+      errors are _not_ proxied after the pipeline terminates,
+      either due to the source emitting `'end'` or manually
+      unpiping with `src.unpipe(dest)`.  Default `false`.
+* `on(ev, fn)`, `emit(ev, fn)` - Minipass streams are EventEmitters.  Some
+  events are given special treatment, however.  (See below under "events".)
+* `promise()` - Returns a Promise that resolves when the stream emits
+  `end`, or rejects if the stream emits `error`.
+* `collect()` - Return a Promise that resolves on `end` with an array
+  containing each chunk of data that was emitted, or rejects if the stream
+  emits `error`.  Note that this consumes the stream data.
+* `concat()` - Same as `collect()`, but concatenates the data into a single
+  Buffer object.  Will reject the returned promise if the stream is in
+  objectMode, or if it goes into objectMode by the end of the data.
+* `read(n)` - Consume `n` bytes of data out of the buffer.  If `n` is not
+  provided, then consume all of it.  If `n` bytes are not available, then
+  it returns null.  **Note** consuming streams in this way is less
+  efficient, and can lead to unnecessary Buffer copying.
+* `destroy([er])` - Destroy the stream.  If an error is provided, then an
+  `'error'` event is emitted.  If the stream has a `close()` method, and
+  has not emitted a `'close'` event yet, then `stream.close()` will be
+  called.  Any Promises returned by `.promise()`, `.collect()` or
+  `.concat()` will be rejected.  After being destroyed, writing to the
+  stream will emit an error.  No more data will be emitted if the stream is
+  destroyed, even if it was previously buffered.
+
+### Properties
+
+* `bufferLength` Read-only.  Total number of bytes buffered, or in the case
+  of objectMode, the total number of objects.
+* `encoding` The encoding that has been set.  (Setting this is equivalent
+  to calling `setEncoding(enc)` and has the same prohibition against
+  setting multiple times.)
+* `flowing` Read-only.  Boolean indicating whether a chunk written to the
+  stream will be immediately emitted.
+* `emittedEnd` Read-only.  Boolean indicating whether the end-ish events
+  (ie, `end`, `prefinish`, `finish`) have been emitted.  Note that
+  listening on any end-ish event will immediateyl re-emit it if it has
+  already been emitted.
+* `writable` Whether the stream is writable.  Default `true`.  Set to
+  `false` when `end()`
+* `readable` Whether the stream is readable.  Default `true`.
+* `buffer` A [yallist](http://npm.im/yallist) linked list of chunks written
+  to the stream that have not yet been emitted.  (It's probably a bad idea
+  to mess with this.)
+* `pipes` A [yallist](http://npm.im/yallist) linked list of streams that
+  this stream is piping into.  (It's probably a bad idea to mess with
+  this.)
+* `destroyed` A getter that indicates whether the stream was destroyed.
+* `paused` True if the stream has been explicitly paused, otherwise false.
+* `objectMode` Indicates whether the stream is in `objectMode`.  Once set
+  to `true`, it cannot be set to `false`.
+
+### Events
+
+* `data` Emitted when there's data to read.  Argument is the data to read.
+  This is never emitted while not flowing.  If a listener is attached, that
+  will resume the stream.
+* `end` Emitted when there's no more data to read.  This will be emitted
+  immediately for empty streams when `end()` is called.  If a listener is
+  attached, and `end` was already emitted, then it will be emitted again.
+  All listeners are removed when `end` is emitted.
+* `prefinish` An end-ish event that follows the same logic as `end` and is
+  emitted in the same conditions where `end` is emitted.  Emitted after
+  `'end'`.
+* `finish` An end-ish event that follows the same logic as `end` and is
+  emitted in the same conditions where `end` is emitted.  Emitted after
+  `'prefinish'`.
+* `close` An indication that an underlying resource has been released.
+  Minipass does not emit this event, but will defer it until after `end`
+  has been emitted, since it throws off some stream libraries otherwise.
+* `drain` Emitted when the internal buffer empties, and it is again
+  suitable to `write()` into the stream.
+* `readable` Emitted when data is buffered and ready to be read by a
+  consumer.
+* `resume` Emitted when stream changes state from buffering to flowing
+  mode.  (Ie, when `resume` is called, `pipe` is called, or a `data` event
+  listener is added.)
+
+### Static Methods
+
+* `Minipass.isStream(stream)` Returns `true` if the argument is a stream,
+  and false otherwise.  To be considered a stream, the object must be
+  either an instance of Minipass, or an EventEmitter that has either a
+  `pipe()` method, or both `write()` and `end()` methods.  (Pretty much any
+  stream in node-land will return `true` for this.)
+
+## EXAMPLES
+
+Here are some examples of things you can do with Minipass streams.
+
+### simple "are you done yet" promise
+
+```js
+mp.promise().then(() => {
+  // stream is finished
+}, er => {
+  // stream emitted an error
+})
+```
+
+### collecting
+
+```js
+mp.collect().then(all => {
+  // all is an array of all the data emitted
+  // encoding is supported in this case, so
+  // so the result will be a collection of strings if
+  // an encoding is specified, or buffers/objects if not.
+  //
+  // In an async function, you may do
+  // const data = await stream.collect()
+})
+```
+
+### collecting into a single blob
+
+This is a bit slower because it concatenates the data into one chunk for
+you, but if you're going to do it yourself anyway, it's convenient this
+way:
+
+```js
+mp.concat().then(onebigchunk => {
+  // onebigchunk is a string if the stream
+  // had an encoding set, or a buffer otherwise.
+})
+```
+
+### iteration
+
+You can iterate over streams synchronously or asynchronously in platforms
+that support it.
+
+Synchronous iteration will end when the currently available data is
+consumed, even if the `end` event has not been reached.  In string and
+buffer mode, the data is concatenated, so unless multiple writes are
+occurring in the same tick as the `read()`, sync iteration loops will
+generally only have a single iteration.
+
+To consume chunks in this way exactly as they have been written, with no
+flattening, create the stream with the `{ objectMode: true }` option.
+
+```js
+const mp = new Minipass({ objectMode: true })
+mp.write('a')
+mp.write('b')
+for (let letter of mp) {
+  console.log(letter) // a, b
+}
+mp.write('c')
+mp.write('d')
+for (let letter of mp) {
+  console.log(letter) // c, d
+}
+mp.write('e')
+mp.end()
+for (let letter of mp) {
+  console.log(letter) // e
+}
+for (let letter of mp) {
+  console.log(letter) // nothing
+}
+```
+
+Asynchronous iteration will continue until the end event is reached,
+consuming all of the data.
+
+```js
+const mp = new Minipass({ encoding: 'utf8' })
+
+// some source of some data
+let i = 5
+const inter = setInterval(() => {
+  if (i-- > 0)
+    mp.write(Buffer.from('foo\n', 'utf8'))
+  else {
+    mp.end()
+    clearInterval(inter)
+  }
+}, 100)
+
+// consume the data with asynchronous iteration
+async function consume () {
+  for await (let chunk of mp) {
+    console.log(chunk)
+  }
+  return 'ok'
+}
+
+consume().then(res => console.log(res))
+// logs `foo\n` 5 times, and then `ok`
+```
+
+### subclass that `console.log()`s everything written into it
+
+```js
+class Logger extends Minipass {
+  write (chunk, encoding, callback) {
+    console.log('WRITE', chunk, encoding)
+    return super.write(chunk, encoding, callback)
+  }
+  end (chunk, encoding, callback) {
+    console.log('END', chunk, encoding)
+    return super.end(chunk, encoding, callback)
+  }
+}
+
+someSource.pipe(new Logger()).pipe(someDest)
+```
+
+### same thing, but using an inline anonymous class
+
+```js
+// js classes are fun
+someSource
+  .pipe(new (class extends Minipass {
+    emit (ev, ...data) {
+      // let's also log events, because debugging some weird thing
+      console.log('EMIT', ev)
+      return super.emit(ev, ...data)
+    }
+    write (chunk, encoding, callback) {
+      console.log('WRITE', chunk, encoding)
+      return super.write(chunk, encoding, callback)
+    }
+    end (chunk, encoding, callback) {
+      console.log('END', chunk, encoding)
+      return super.end(chunk, encoding, callback)
+    }
+  }))
+  .pipe(someDest)
+```
+
+### subclass that defers 'end' for some reason
+
+```js
+class SlowEnd extends Minipass {
+  emit (ev, ...args) {
+    if (ev === 'end') {
+      console.log('going to end, hold on a sec')
+      setTimeout(() => {
+        console.log('ok, ready to end now')
+        super.emit('end', ...args)
+      }, 100)
+    } else {
+      return super.emit(ev, ...args)
+    }
+  }
+}
+```
+
+### transform that creates newline-delimited JSON
+
+```js
+class NDJSONEncode extends Minipass {
+  write (obj, cb) {
+    try {
+      // JSON.stringify can throw, emit an error on that
+      return super.write(JSON.stringify(obj) + '\n', 'utf8', cb)
+    } catch (er) {
+      this.emit('error', er)
+    }
+  }
+  end (obj, cb) {
+    if (typeof obj === 'function') {
+      cb = obj
+      obj = undefined
+    }
+    if (obj !== undefined) {
+      this.write(obj)
+    }
+    return super.end(cb)
+  }
+}
+```
+
+### transform that parses newline-delimited JSON
+
+```js
+class NDJSONDecode extends Minipass {
+  constructor (options) {
+    // always be in object mode, as far as Minipass is concerned
+    super({ objectMode: true })
+    this._jsonBuffer = ''
+  }
+  write (chunk, encoding, cb) {
+    if (typeof chunk === 'string' &&
+        typeof encoding === 'string' &&
+        encoding !== 'utf8') {
+      chunk = Buffer.from(chunk, encoding).toString()
+    } else if (Buffer.isBuffer(chunk))
+      chunk = chunk.toString()
+    }
+    if (typeof encoding === 'function') {
+      cb = encoding
+    }
+    const jsonData = (this._jsonBuffer + chunk).split('\n')
+    this._jsonBuffer = jsonData.pop()
+    for (let i = 0; i < jsonData.length; i++) {
+      try {
+        // JSON.parse can throw, emit an error on that
+        super.write(JSON.parse(jsonData[i]))
+      } catch (er) {
+        this.emit('error', er)
+        continue
+      }
+    }
+    if (cb)
+      cb()
+  }
+}
+```
diff --git a/node_modules/minipass/index.d.ts b/node_modules/minipass/index.d.ts
new file mode 100644
index 0000000..65faf63
--- /dev/null
+++ b/node_modules/minipass/index.d.ts
@@ -0,0 +1,155 @@
+/// <reference types="node" />
+import { EventEmitter } from 'events'
+import { Stream } from 'stream'
+
+declare namespace Minipass {
+  type Encoding = BufferEncoding | 'buffer' | null
+
+  interface Writable extends EventEmitter {
+    end(): any
+    write(chunk: any, ...args: any[]): any
+  }
+
+  interface Readable extends EventEmitter {
+    pause(): any
+    resume(): any
+    pipe(): any
+  }
+
+  interface Pipe<R, W> {
+    src: Minipass<R, W>
+    dest: Writable
+    opts: PipeOptions
+  }
+
+  type DualIterable<T> = Iterable<T> & AsyncIterable<T>
+
+  type ContiguousData = Buffer | ArrayBufferLike | ArrayBufferView | string
+
+  type BufferOrString = Buffer | string
+
+  interface StringOptions {
+    encoding: BufferEncoding
+    objectMode?: boolean
+    async?: boolean
+  }
+
+  interface BufferOptions {
+    encoding?: null | 'buffer'
+    objectMode?: boolean
+    async?: boolean
+  }
+
+  interface ObjectModeOptions {
+    objectMode: true
+    async?: boolean
+  }
+
+  interface PipeOptions {
+    end?: boolean
+    proxyErrors?: boolean
+  }
+
+  type Options<T> = T extends string
+    ? StringOptions
+    : T extends Buffer
+    ? BufferOptions
+    : ObjectModeOptions
+}
+
+declare class Minipass<
+    RType extends any = Buffer,
+    WType extends any = RType extends Minipass.BufferOrString
+      ? Minipass.ContiguousData
+      : RType
+  >
+  extends Stream
+  implements Minipass.DualIterable<RType>
+{
+  static isStream(stream: any): stream is Minipass.Readable | Minipass.Writable
+
+  readonly bufferLength: number
+  readonly flowing: boolean
+  readonly writable: boolean
+  readonly readable: boolean
+  readonly paused: boolean
+  readonly emittedEnd: boolean
+  readonly destroyed: boolean
+
+  /**
+   * Not technically private or readonly, but not safe to mutate.
+   */
+  private readonly buffer: RType[]
+  private readonly pipes: Minipass.Pipe<RType, WType>[]
+
+  /**
+   * Technically writable, but mutating it can change the type,
+   * so is not safe to do in TypeScript.
+   */
+  readonly objectMode: boolean
+  async: boolean
+
+  /**
+   * Note: encoding is not actually read-only, and setEncoding(enc)
+   * exists. However, this type definition will insist that TypeScript
+   * programs declare the type of a Minipass stream up front, and if
+   * that type is string, then an encoding MUST be set in the ctor. If
+   * the type is Buffer, then the encoding must be missing, or set to
+   * 'buffer' or null. If the type is anything else, then objectMode
+   * must be set in the constructor options.  So there is effectively
+   * no allowed way that a TS program can set the encoding after
+   * construction, as doing so will destroy any hope of type safety.
+   * TypeScript does not provide many options for changing the type of
+   * an object at run-time, which is what changing the encoding does.
+   */
+  readonly encoding: Minipass.Encoding
+  // setEncoding(encoding: Encoding): void
+
+  // Options required if not reading buffers
+  constructor(
+    ...args: RType extends Buffer
+      ? [] | [Minipass.Options<RType>]
+      : [Minipass.Options<RType>]
+  )
+
+  write(chunk: WType, cb?: () => void): boolean
+  write(chunk: WType, encoding?: Minipass.Encoding, cb?: () => void): boolean
+  read(size?: number): RType
+  end(cb?: () => void): this
+  end(chunk: any, cb?: () => void): this
+  end(chunk: any, encoding?: Minipass.Encoding, cb?: () => void): this
+  pause(): void
+  resume(): void
+  promise(): Promise<void>
+  collect(): Promise<RType[]>
+
+  concat(): RType extends Minipass.BufferOrString ? Promise<RType> : never
+  destroy(er?: any): void
+  pipe<W extends Minipass.Writable>(dest: W, opts?: Minipass.PipeOptions): W
+  unpipe<W extends Minipass.Writable>(dest: W): void
+
+  /**
+   * alias for on()
+   */
+  addEventHandler(event: string, listener: (...args: any[]) => any): this
+
+  on(event: string, listener: (...args: any[]) => any): this
+  on(event: 'data', listener: (chunk: RType) => any): this
+  on(event: 'error', listener: (error: any) => any): this
+  on(
+    event:
+      | 'readable'
+      | 'drain'
+      | 'resume'
+      | 'end'
+      | 'prefinish'
+      | 'finish'
+      | 'close',
+    listener: () => any
+  ): this
+
+  [Symbol.iterator](): Iterator<RType>
+  [Symbol.asyncIterator](): AsyncIterator<RType>
+}
+
+export = Minipass
diff --git a/node_modules/minipass/index.js b/node_modules/minipass/index.js
new file mode 100644
index 0000000..e8797aa
--- /dev/null
+++ b/node_modules/minipass/index.js
@@ -0,0 +1,649 @@
+'use strict'
+const proc = typeof process === 'object' && process ? process : {
+  stdout: null,
+  stderr: null,
+}
+const EE = require('events')
+const Stream = require('stream')
+const SD = require('string_decoder').StringDecoder
+
+const EOF = Symbol('EOF')
+const MAYBE_EMIT_END = Symbol('maybeEmitEnd')
+const EMITTED_END = Symbol('emittedEnd')
+const EMITTING_END = Symbol('emittingEnd')
+const EMITTED_ERROR = Symbol('emittedError')
+const CLOSED = Symbol('closed')
+const READ = Symbol('read')
+const FLUSH = Symbol('flush')
+const FLUSHCHUNK = Symbol('flushChunk')
+const ENCODING = Symbol('encoding')
+const DECODER = Symbol('decoder')
+const FLOWING = Symbol('flowing')
+const PAUSED = Symbol('paused')
+const RESUME = Symbol('resume')
+const BUFFERLENGTH = Symbol('bufferLength')
+const BUFFERPUSH = Symbol('bufferPush')
+const BUFFERSHIFT = Symbol('bufferShift')
+const OBJECTMODE = Symbol('objectMode')
+const DESTROYED = Symbol('destroyed')
+const EMITDATA = Symbol('emitData')
+const EMITEND = Symbol('emitEnd')
+const EMITEND2 = Symbol('emitEnd2')
+const ASYNC = Symbol('async')
+
+const defer = fn => Promise.resolve().then(fn)
+
+// TODO remove when Node v8 support drops
+const doIter = global._MP_NO_ITERATOR_SYMBOLS_  !== '1'
+const ASYNCITERATOR = doIter && Symbol.asyncIterator
+  || Symbol('asyncIterator not implemented')
+const ITERATOR = doIter && Symbol.iterator
+  || Symbol('iterator not implemented')
+
+// events that mean 'the stream is over'
+// these are treated specially, and re-emitted
+// if they are listened for after emitting.
+const isEndish = ev =>
+  ev === 'end' ||
+  ev === 'finish' ||
+  ev === 'prefinish'
+
+const isArrayBuffer = b => b instanceof ArrayBuffer ||
+  typeof b === 'object' &&
+  b.constructor &&
+  b.constructor.name === 'ArrayBuffer' &&
+  b.byteLength >= 0
+
+const isArrayBufferView = b => !Buffer.isBuffer(b) && ArrayBuffer.isView(b)
+
+class Pipe {
+  constructor (src, dest, opts) {
+    this.src = src
+    this.dest = dest
+    this.opts = opts
+    this.ondrain = () => src[RESUME]()
+    dest.on('drain', this.ondrain)
+  }
+  unpipe () {
+    this.dest.removeListener('drain', this.ondrain)
+  }
+  // istanbul ignore next - only here for the prototype
+  proxyErrors () {}
+  end () {
+    this.unpipe()
+    if (this.opts.end)
+      this.dest.end()
+  }
+}
+
+class PipeProxyErrors extends Pipe {
+  unpipe () {
+    this.src.removeListener('error', this.proxyErrors)
+    super.unpipe()
+  }
+  constructor (src, dest, opts) {
+    super(src, dest, opts)
+    this.proxyErrors = er => dest.emit('error', er)
+    src.on('error', this.proxyErrors)
+  }
+}
+
+module.exports = class Minipass extends Stream {
+  constructor (options) {
+    super()
+    this[FLOWING] = false
+    // whether we're explicitly paused
+    this[PAUSED] = false
+    this.pipes = []
+    this.buffer = []
+    this[OBJECTMODE] = options && options.objectMode || false
+    if (this[OBJECTMODE])
+      this[ENCODING] = null
+    else
+      this[ENCODING] = options && options.encoding || null
+    if (this[ENCODING] === 'buffer')
+      this[ENCODING] = null
+    this[ASYNC] = options && !!options.async || false
+    this[DECODER] = this[ENCODING] ? new SD(this[ENCODING]) : null
+    this[EOF] = false
+    this[EMITTED_END] = false
+    this[EMITTING_END] = false
+    this[CLOSED] = false
+    this[EMITTED_ERROR] = null
+    this.writable = true
+    this.readable = true
+    this[BUFFERLENGTH] = 0
+    this[DESTROYED] = false
+  }
+
+  get bufferLength () { return this[BUFFERLENGTH] }
+
+  get encoding () { return this[ENCODING] }
+  set encoding (enc) {
+    if (this[OBJECTMODE])
+      throw new Error('cannot set encoding in objectMode')
+
+    if (this[ENCODING] && enc !== this[ENCODING] &&
+        (this[DECODER] && this[DECODER].lastNeed || this[BUFFERLENGTH]))
+      throw new Error('cannot change encoding')
+
+    if (this[ENCODING] !== enc) {
+      this[DECODER] = enc ? new SD(enc) : null
+      if (this.buffer.length)
+        this.buffer = this.buffer.map(chunk => this[DECODER].write(chunk))
+    }
+
+    this[ENCODING] = enc
+  }
+
+  setEncoding (enc) {
+    this.encoding = enc
+  }
+
+  get objectMode () { return this[OBJECTMODE] }
+  set objectMode (om) { this[OBJECTMODE] = this[OBJECTMODE] || !!om }
+
+  get ['async'] () { return this[ASYNC] }
+  set ['async'] (a) { this[ASYNC] = this[ASYNC] || !!a }
+
+  write (chunk, encoding, cb) {
+    if (this[EOF])
+      throw new Error('write after end')
+
+    if (this[DESTROYED]) {
+      this.emit('error', Object.assign(
+        new Error('Cannot call write after a stream was destroyed'),
+        { code: 'ERR_STREAM_DESTROYED' }
+      ))
+      return true
+    }
+
+    if (typeof encoding === 'function')
+      cb = encoding, encoding = 'utf8'
+
+    if (!encoding)
+      encoding = 'utf8'
+
+    const fn = this[ASYNC] ? defer : f => f()
+
+    // convert array buffers and typed array views into buffers
+    // at some point in the future, we may want to do the opposite!
+    // leave strings and buffers as-is
+    // anything else switches us into object mode
+    if (!this[OBJECTMODE] && !Buffer.isBuffer(chunk)) {
+      if (isArrayBufferView(chunk))
+        chunk = Buffer.from(chunk.buffer, chunk.byteOffset, chunk.byteLength)
+      else if (isArrayBuffer(chunk))
+        chunk = Buffer.from(chunk)
+      else if (typeof chunk !== 'string')
+        // use the setter so we throw if we have encoding set
+        this.objectMode = true
+    }
+
+    // handle object mode up front, since it's simpler
+    // this yields better performance, fewer checks later.
+    if (this[OBJECTMODE]) {
+      /* istanbul ignore if - maybe impossible? */
+      if (this.flowing && this[BUFFERLENGTH] !== 0)
+        this[FLUSH](true)
+
+      if (this.flowing)
+        this.emit('data', chunk)
+      else
+        this[BUFFERPUSH](chunk)
+
+      if (this[BUFFERLENGTH] !== 0)
+        this.emit('readable')
+
+      if (cb)
+        fn(cb)
+
+      return this.flowing
+    }
+
+    // at this point the chunk is a buffer or string
+    // don't buffer it up or send it to the decoder
+    if (!chunk.length) {
+      if (this[BUFFERLENGTH] !== 0)
+        this.emit('readable')
+      if (cb)
+        fn(cb)
+      return this.flowing
+    }
+
+    // fast-path writing strings of same encoding to a stream with
+    // an empty buffer, skipping the buffer/decoder dance
+    if (typeof chunk === 'string' &&
+        // unless it is a string already ready for us to use
+        !(encoding === this[ENCODING] && !this[DECODER].lastNeed)) {
+      chunk = Buffer.from(chunk, encoding)
+    }
+
+    if (Buffer.isBuffer(chunk) && this[ENCODING])
+      chunk = this[DECODER].write(chunk)
+
+    // Note: flushing CAN potentially switch us into not-flowing mode
+    if (this.flowing && this[BUFFERLENGTH] !== 0)
+      this[FLUSH](true)
+
+    if (this.flowing)
+      this.emit('data', chunk)
+    else
+      this[BUFFERPUSH](chunk)
+
+    if (this[BUFFERLENGTH] !== 0)
+      this.emit('readable')
+
+    if (cb)
+      fn(cb)
+
+    return this.flowing
+  }
+
+  read (n) {
+    if (this[DESTROYED])
+      return null
+
+    if (this[BUFFERLENGTH] === 0 || n === 0 || n > this[BUFFERLENGTH]) {
+      this[MAYBE_EMIT_END]()
+      return null
+    }
+
+    if (this[OBJECTMODE])
+      n = null
+
+    if (this.buffer.length > 1 && !this[OBJECTMODE]) {
+      if (this.encoding)
+        this.buffer = [this.buffer.join('')]
+      else
+        this.buffer = [Buffer.concat(this.buffer, this[BUFFERLENGTH])]
+    }
+
+    const ret = this[READ](n || null, this.buffer[0])
+    this[MAYBE_EMIT_END]()
+    return ret
+  }
+
+  [READ] (n, chunk) {
+    if (n === chunk.length || n === null)
+      this[BUFFERSHIFT]()
+    else {
+      this.buffer[0] = chunk.slice(n)
+      chunk = chunk.slice(0, n)
+      this[BUFFERLENGTH] -= n
+    }
+
+    this.emit('data', chunk)
+
+    if (!this.buffer.length && !this[EOF])
+      this.emit('drain')
+
+    return chunk
+  }
+
+  end (chunk, encoding, cb) {
+    if (typeof chunk === 'function')
+      cb = chunk, chunk = null
+    if (typeof encoding === 'function')
+      cb = encoding, encoding = 'utf8'
+    if (chunk)
+      this.write(chunk, encoding)
+    if (cb)
+      this.once('end', cb)
+    this[EOF] = true
+    this.writable = false
+
+    // if we haven't written anything, then go ahead and emit,
+    // even if we're not reading.
+    // we'll re-emit if a new 'end' listener is added anyway.
+    // This makes MP more suitable to write-only use cases.
+    if (this.flowing || !this[PAUSED])
+      this[MAYBE_EMIT_END]()
+    return this
+  }
+
+  // don't let the internal resume be overwritten
+  [RESUME] () {
+    if (this[DESTROYED])
+      return
+
+    this[PAUSED] = false
+    this[FLOWING] = true
+    this.emit('resume')
+    if (this.buffer.length)
+      this[FLUSH]()
+    else if (this[EOF])
+      this[MAYBE_EMIT_END]()
+    else
+      this.emit('drain')
+  }
+
+  resume () {
+    return this[RESUME]()
+  }
+
+  pause () {
+    this[FLOWING] = false
+    this[PAUSED] = true
+  }
+
+  get destroyed () {
+    return this[DESTROYED]
+  }
+
+  get flowing () {
+    return this[FLOWING]
+  }
+
+  get paused () {
+    return this[PAUSED]
+  }
+
+  [BUFFERPUSH] (chunk) {
+    if (this[OBJECTMODE])
+      this[BUFFERLENGTH] += 1
+    else
+      this[BUFFERLENGTH] += chunk.length
+    this.buffer.push(chunk)
+  }
+
+  [BUFFERSHIFT] () {
+    if (this.buffer.length) {
+      if (this[OBJECTMODE])
+        this[BUFFERLENGTH] -= 1
+      else
+        this[BUFFERLENGTH] -= this.buffer[0].length
+    }
+    return this.buffer.shift()
+  }
+
+  [FLUSH] (noDrain) {
+    do {} while (this[FLUSHCHUNK](this[BUFFERSHIFT]()))
+
+    if (!noDrain && !this.buffer.length && !this[EOF])
+      this.emit('drain')
+  }
+
+  [FLUSHCHUNK] (chunk) {
+    return chunk ? (this.emit('data', chunk), this.flowing) : false
+  }
+
+  pipe (dest, opts) {
+    if (this[DESTROYED])
+      return
+
+    const ended = this[EMITTED_END]
+    opts = opts || {}
+    if (dest === proc.stdout || dest === proc.stderr)
+      opts.end = false
+    else
+      opts.end = opts.end !== false
+    opts.proxyErrors = !!opts.proxyErrors
+
+    // piping an ended stream ends immediately
+    if (ended) {
+      if (opts.end)
+        dest.end()
+    } else {
+      this.pipes.push(!opts.proxyErrors ? new Pipe(this, dest, opts)
+        : new PipeProxyErrors(this, dest, opts))
+      if (this[ASYNC])
+        defer(() => this[RESUME]())
+      else
+        this[RESUME]()
+    }
+
+    return dest
+  }
+
+  unpipe (dest) {
+    const p = this.pipes.find(p => p.dest === dest)
+    if (p) {
+      this.pipes.splice(this.pipes.indexOf(p), 1)
+      p.unpipe()
+    }
+  }
+
+  addListener (ev, fn) {
+    return this.on(ev, fn)
+  }
+
+  on (ev, fn) {
+    const ret = super.on(ev, fn)
+    if (ev === 'data' && !this.pipes.length && !this.flowing)
+      this[RESUME]()
+    else if (ev === 'readable' && this[BUFFERLENGTH] !== 0)
+      super.emit('readable')
+    else if (isEndish(ev) && this[EMITTED_END]) {
+      super.emit(ev)
+      this.removeAllListeners(ev)
+    } else if (ev === 'error' && this[EMITTED_ERROR]) {
+      if (this[ASYNC])
+        defer(() => fn.call(this, this[EMITTED_ERROR]))
+      else
+        fn.call(this, this[EMITTED_ERROR])
+    }
+    return ret
+  }
+
+  get emittedEnd () {
+    return this[EMITTED_END]
+  }
+
+  [MAYBE_EMIT_END] () {
+    if (!this[EMITTING_END] &&
+        !this[EMITTED_END] &&
+        !this[DESTROYED] &&
+        this.buffer.length === 0 &&
+        this[EOF]) {
+      this[EMITTING_END] = true
+      this.emit('end')
+      this.emit('prefinish')
+      this.emit('finish')
+      if (this[CLOSED])
+        this.emit('close')
+      this[EMITTING_END] = false
+    }
+  }
+
+  emit (ev, data, ...extra) {
+    // error and close are only events allowed after calling destroy()
+    if (ev !== 'error' && ev !== 'close' && ev !== DESTROYED && this[DESTROYED])
+      return
+    else if (ev === 'data') {
+      return !data ? false
+        : this[ASYNC] ? defer(() => this[EMITDATA](data))
+        : this[EMITDATA](data)
+    } else if (ev === 'end') {
+      return this[EMITEND]()
+    } else if (ev === 'close') {
+      this[CLOSED] = true
+      // don't emit close before 'end' and 'finish'
+      if (!this[EMITTED_END] && !this[DESTROYED])
+        return
+      const ret = super.emit('close')
+      this.removeAllListeners('close')
+      return ret
+    } else if (ev === 'error') {
+      this[EMITTED_ERROR] = data
+      const ret = super.emit('error', data)
+      this[MAYBE_EMIT_END]()
+      return ret
+    } else if (ev === 'resume') {
+      const ret = super.emit('resume')
+      this[MAYBE_EMIT_END]()
+      return ret
+    } else if (ev === 'finish' || ev === 'prefinish') {
+      const ret = super.emit(ev)
+      this.removeAllListeners(ev)
+      return ret
+    }
+
+    // Some other unknown event
+    const ret = super.emit(ev, data, ...extra)
+    this[MAYBE_EMIT_END]()
+    return ret
+  }
+
+  [EMITDATA] (data) {
+    for (const p of this.pipes) {
+      if (p.dest.write(data) === false)
+        this.pause()
+    }
+    const ret = super.emit('data', data)
+    this[MAYBE_EMIT_END]()
+    return ret
+  }
+
+  [EMITEND] () {
+    if (this[EMITTED_END])
+      return
+
+    this[EMITTED_END] = true
+    this.readable = false
+    if (this[ASYNC])
+      defer(() => this[EMITEND2]())
+    else
+      this[EMITEND2]()
+  }
+
+  [EMITEND2] () {
+    if (this[DECODER]) {
+      const data = this[DECODER].end()
+      if (data) {
+        for (const p of this.pipes) {
+          p.dest.write(data)
+        }
+        super.emit('data', data)
+      }
+    }
+
+    for (const p of this.pipes) {
+      p.end()
+    }
+    const ret = super.emit('end')
+    this.removeAllListeners('end')
+    return ret
+  }
+
+  // const all = await stream.collect()
+  collect () {
+    const buf = []
+    if (!this[OBJECTMODE])
+      buf.dataLength = 0
+    // set the promise first, in case an error is raised
+    // by triggering the flow here.
+    const p = this.promise()
+    this.on('data', c => {
+      buf.push(c)
+      if (!this[OBJECTMODE])
+        buf.dataLength += c.length
+    })
+    return p.then(() => buf)
+  }
+
+  // const data = await stream.concat()
+  concat () {
+    return this[OBJECTMODE]
+      ? Promise.reject(new Error('cannot concat in objectMode'))
+      : this.collect().then(buf =>
+          this[OBJECTMODE]
+            ? Promise.reject(new Error('cannot concat in objectMode'))
+            : this[ENCODING] ? buf.join('') : Buffer.concat(buf, buf.dataLength))
+  }
+
+  // stream.promise().then(() => done, er => emitted error)
+  promise () {
+    return new Promise((resolve, reject) => {
+      this.on(DESTROYED, () => reject(new Error('stream destroyed')))
+      this.on('error', er => reject(er))
+      this.on('end', () => resolve())
+    })
+  }
+
+  // for await (let chunk of stream)
+  [ASYNCITERATOR] () {
+    const next = () => {
+      const res = this.read()
+      if (res !== null)
+        return Promise.resolve({ done: false, value: res })
+
+      if (this[EOF])
+        return Promise.resolve({ done: true })
+
+      let resolve = null
+      let reject = null
+      const onerr = er => {
+        this.removeListener('data', ondata)
+        this.removeListener('end', onend)
+        reject(er)
+      }
+      const ondata = value => {
+        this.removeListener('error', onerr)
+        this.removeListener('end', onend)
+        this.pause()
+        resolve({ value: value, done: !!this[EOF] })
+      }
+      const onend = () => {
+        this.removeListener('error', onerr)
+        this.removeListener('data', ondata)
+        resolve({ done: true })
+      }
+      const ondestroy = () => onerr(new Error('stream destroyed'))
+      return new Promise((res, rej) => {
+        reject = rej
+        resolve = res
+        this.once(DESTROYED, ondestroy)
+        this.once('error', onerr)
+        this.once('end', onend)
+        this.once('data', ondata)
+      })
+    }
+
+    return { next }
+  }
+
+  // for (let chunk of stream)
+  [ITERATOR] () {
+    const next = () => {
+      const value = this.read()
+      const done = value === null
+      return { value, done }
+    }
+    return { next }
+  }
+
+  destroy (er) {
+    if (this[DESTROYED]) {
+      if (er)
+        this.emit('error', er)
+      else
+        this.emit(DESTROYED)
+      return this
+    }
+
+    this[DESTROYED] = true
+
+    // throw away all buffered data, it's never coming out
+    this.buffer.length = 0
+    this[BUFFERLENGTH] = 0
+
+    if (typeof this.close === 'function' && !this[CLOSED])
+      this.close()
+
+    if (er)
+      this.emit('error', er)
+    else // if no error to emit, still reject pending promises
+      this.emit(DESTROYED)
+
+    return this
+  }
+
+  static isStream (s) {
+    return !!s && (s instanceof Minipass || s instanceof Stream ||
+      s instanceof EE && (
+        typeof s.pipe === 'function' || // readable
+        (typeof s.write === 'function' && typeof s.end === 'function') // writable
+      ))
+  }
+}
diff --git a/node_modules/minipass/package.json b/node_modules/minipass/package.json
new file mode 100644
index 0000000..548d03f
--- /dev/null
+++ b/node_modules/minipass/package.json
@@ -0,0 +1,56 @@
+{
+  "name": "minipass",
+  "version": "3.3.6",
+  "description": "minimal implementation of a PassThrough stream",
+  "main": "index.js",
+  "types": "index.d.ts",
+  "dependencies": {
+    "yallist": "^4.0.0"
+  },
+  "devDependencies": {
+    "@types/node": "^17.0.41",
+    "end-of-stream": "^1.4.0",
+    "prettier": "^2.6.2",
+    "tap": "^16.2.0",
+    "through2": "^2.0.3",
+    "ts-node": "^10.8.1",
+    "typescript": "^4.7.3"
+  },
+  "scripts": {
+    "test": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/isaacs/minipass.git"
+  },
+  "keywords": [
+    "passthrough",
+    "stream"
+  ],
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "ISC",
+  "files": [
+    "index.d.ts",
+    "index.js"
+  ],
+  "tap": {
+    "check-coverage": true
+  },
+  "engines": {
+    "node": ">=8"
+  },
+  "prettier": {
+    "semi": false,
+    "printWidth": 80,
+    "tabWidth": 2,
+    "useTabs": false,
+    "singleQuote": true,
+    "jsxSingleQuote": false,
+    "bracketSameLine": true,
+    "arrowParens": "avoid",
+    "endOfLine": "lf"
+  }
+}
diff --git a/node_modules/minizlib/LICENSE b/node_modules/minizlib/LICENSE
new file mode 100644
index 0000000..ffce738
--- /dev/null
+++ b/node_modules/minizlib/LICENSE
@@ -0,0 +1,26 @@
+Minizlib was created by Isaac Z. Schlueter.
+It is a derivative work of the Node.js project.
+
+"""
+Copyright Isaac Z. Schlueter and Contributors
+Copyright Node.js contributors. All rights reserved.
+Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+"""
diff --git a/node_modules/minizlib/README.md b/node_modules/minizlib/README.md
new file mode 100644
index 0000000..80e067a
--- /dev/null
+++ b/node_modules/minizlib/README.md
@@ -0,0 +1,60 @@
+# minizlib
+
+A fast zlib stream built on [minipass](http://npm.im/minipass) and
+Node.js's zlib binding.
+
+This module was created to serve the needs of
+[node-tar](http://npm.im/tar) and
+[minipass-fetch](http://npm.im/minipass-fetch).
+
+Brotli is supported in versions of node with a Brotli binding.
+
+## How does this differ from the streams in `require('zlib')`?
+
+First, there are no convenience methods to compress or decompress a
+buffer.  If you want those, use the built-in `zlib` module.  This is
+only streams.  That being said, Minipass streams to make it fairly easy to
+use as one-liners: `new zlib.Deflate().end(data).read()` will return the
+deflate compressed result.
+
+This module compresses and decompresses the data as fast as you feed
+it in.  It is synchronous, and runs on the main process thread.  Zlib
+and Brotli operations can be high CPU, but they're very fast, and doing it
+this way means much less bookkeeping and artificial deferral.
+
+Node's built in zlib streams are built on top of `stream.Transform`.
+They do the maximally safe thing with respect to consistent
+asynchrony, buffering, and backpressure.
+
+See [Minipass](http://npm.im/minipass) for more on the differences between
+Node.js core streams and Minipass streams, and the convenience methods
+provided by that class.
+
+## Classes
+
+- Deflate
+- Inflate
+- Gzip
+- Gunzip
+- DeflateRaw
+- InflateRaw
+- Unzip
+- BrotliCompress (Node v10 and higher)
+- BrotliDecompress (Node v10 and higher)
+
+## USAGE
+
+```js
+const zlib = require('minizlib')
+const input = sourceOfCompressedData()
+const decode = new zlib.BrotliDecompress()
+const output = whereToWriteTheDecodedData()
+input.pipe(decode).pipe(output)
+```
+
+## REPRODUCIBLE BUILDS
+
+To create reproducible gzip compressed files across different operating
+systems, set `portable: true` in the options.  This causes minizlib to set
+the `OS` indicator in byte 9 of the extended gzip header to `0xFF` for
+'unknown'.
diff --git a/node_modules/minizlib/constants.js b/node_modules/minizlib/constants.js
new file mode 100644
index 0000000..641ebc7
--- /dev/null
+++ b/node_modules/minizlib/constants.js
@@ -0,0 +1,115 @@
+// Update with any zlib constants that are added or changed in the future.
+// Node v6 didn't export this, so we just hard code the version and rely
+// on all the other hard-coded values from zlib v4736.  When node v6
+// support drops, we can just export the realZlibConstants object.
+const realZlibConstants = require('zlib').constants ||
+  /* istanbul ignore next */ { ZLIB_VERNUM: 4736 }
+
+module.exports = Object.freeze(Object.assign(Object.create(null), {
+  Z_NO_FLUSH: 0,
+  Z_PARTIAL_FLUSH: 1,
+  Z_SYNC_FLUSH: 2,
+  Z_FULL_FLUSH: 3,
+  Z_FINISH: 4,
+  Z_BLOCK: 5,
+  Z_OK: 0,
+  Z_STREAM_END: 1,
+  Z_NEED_DICT: 2,
+  Z_ERRNO: -1,
+  Z_STREAM_ERROR: -2,
+  Z_DATA_ERROR: -3,
+  Z_MEM_ERROR: -4,
+  Z_BUF_ERROR: -5,
+  Z_VERSION_ERROR: -6,
+  Z_NO_COMPRESSION: 0,
+  Z_BEST_SPEED: 1,
+  Z_BEST_COMPRESSION: 9,
+  Z_DEFAULT_COMPRESSION: -1,
+  Z_FILTERED: 1,
+  Z_HUFFMAN_ONLY: 2,
+  Z_RLE: 3,
+  Z_FIXED: 4,
+  Z_DEFAULT_STRATEGY: 0,
+  DEFLATE: 1,
+  INFLATE: 2,
+  GZIP: 3,
+  GUNZIP: 4,
+  DEFLATERAW: 5,
+  INFLATERAW: 6,
+  UNZIP: 7,
+  BROTLI_DECODE: 8,
+  BROTLI_ENCODE: 9,
+  Z_MIN_WINDOWBITS: 8,
+  Z_MAX_WINDOWBITS: 15,
+  Z_DEFAULT_WINDOWBITS: 15,
+  Z_MIN_CHUNK: 64,
+  Z_MAX_CHUNK: Infinity,
+  Z_DEFAULT_CHUNK: 16384,
+  Z_MIN_MEMLEVEL: 1,
+  Z_MAX_MEMLEVEL: 9,
+  Z_DEFAULT_MEMLEVEL: 8,
+  Z_MIN_LEVEL: -1,
+  Z_MAX_LEVEL: 9,
+  Z_DEFAULT_LEVEL: -1,
+  BROTLI_OPERATION_PROCESS: 0,
+  BROTLI_OPERATION_FLUSH: 1,
+  BROTLI_OPERATION_FINISH: 2,
+  BROTLI_OPERATION_EMIT_METADATA: 3,
+  BROTLI_MODE_GENERIC: 0,
+  BROTLI_MODE_TEXT: 1,
+  BROTLI_MODE_FONT: 2,
+  BROTLI_DEFAULT_MODE: 0,
+  BROTLI_MIN_QUALITY: 0,
+  BROTLI_MAX_QUALITY: 11,
+  BROTLI_DEFAULT_QUALITY: 11,
+  BROTLI_MIN_WINDOW_BITS: 10,
+  BROTLI_MAX_WINDOW_BITS: 24,
+  BROTLI_LARGE_MAX_WINDOW_BITS: 30,
+  BROTLI_DEFAULT_WINDOW: 22,
+  BROTLI_MIN_INPUT_BLOCK_BITS: 16,
+  BROTLI_MAX_INPUT_BLOCK_BITS: 24,
+  BROTLI_PARAM_MODE: 0,
+  BROTLI_PARAM_QUALITY: 1,
+  BROTLI_PARAM_LGWIN: 2,
+  BROTLI_PARAM_LGBLOCK: 3,
+  BROTLI_PARAM_DISABLE_LITERAL_CONTEXT_MODELING: 4,
+  BROTLI_PARAM_SIZE_HINT: 5,
+  BROTLI_PARAM_LARGE_WINDOW: 6,
+  BROTLI_PARAM_NPOSTFIX: 7,
+  BROTLI_PARAM_NDIRECT: 8,
+  BROTLI_DECODER_RESULT_ERROR: 0,
+  BROTLI_DECODER_RESULT_SUCCESS: 1,
+  BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT: 2,
+  BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT: 3,
+  BROTLI_DECODER_PARAM_DISABLE_RING_BUFFER_REALLOCATION: 0,
+  BROTLI_DECODER_PARAM_LARGE_WINDOW: 1,
+  BROTLI_DECODER_NO_ERROR: 0,
+  BROTLI_DECODER_SUCCESS: 1,
+  BROTLI_DECODER_NEEDS_MORE_INPUT: 2,
+  BROTLI_DECODER_NEEDS_MORE_OUTPUT: 3,
+  BROTLI_DECODER_ERROR_FORMAT_EXUBERANT_NIBBLE: -1,
+  BROTLI_DECODER_ERROR_FORMAT_RESERVED: -2,
+  BROTLI_DECODER_ERROR_FORMAT_EXUBERANT_META_NIBBLE: -3,
+  BROTLI_DECODER_ERROR_FORMAT_SIMPLE_HUFFMAN_ALPHABET: -4,
+  BROTLI_DECODER_ERROR_FORMAT_SIMPLE_HUFFMAN_SAME: -5,
+  BROTLI_DECODER_ERROR_FORMAT_CL_SPACE: -6,
+  BROTLI_DECODER_ERROR_FORMAT_HUFFMAN_SPACE: -7,
+  BROTLI_DECODER_ERROR_FORMAT_CONTEXT_MAP_REPEAT: -8,
+  BROTLI_DECODER_ERROR_FORMAT_BLOCK_LENGTH_1: -9,
+  BROTLI_DECODER_ERROR_FORMAT_BLOCK_LENGTH_2: -10,
+  BROTLI_DECODER_ERROR_FORMAT_TRANSFORM: -11,
+  BROTLI_DECODER_ERROR_FORMAT_DICTIONARY: -12,
+  BROTLI_DECODER_ERROR_FORMAT_WINDOW_BITS: -13,
+  BROTLI_DECODER_ERROR_FORMAT_PADDING_1: -14,
+  BROTLI_DECODER_ERROR_FORMAT_PADDING_2: -15,
+  BROTLI_DECODER_ERROR_FORMAT_DISTANCE: -16,
+  BROTLI_DECODER_ERROR_DICTIONARY_NOT_SET: -19,
+  BROTLI_DECODER_ERROR_INVALID_ARGUMENTS: -20,
+  BROTLI_DECODER_ERROR_ALLOC_CONTEXT_MODES: -21,
+  BROTLI_DECODER_ERROR_ALLOC_TREE_GROUPS: -22,
+  BROTLI_DECODER_ERROR_ALLOC_CONTEXT_MAP: -25,
+  BROTLI_DECODER_ERROR_ALLOC_RING_BUFFER_1: -26,
+  BROTLI_DECODER_ERROR_ALLOC_RING_BUFFER_2: -27,
+  BROTLI_DECODER_ERROR_ALLOC_BLOCK_TYPE_TREES: -30,
+  BROTLI_DECODER_ERROR_UNREACHABLE: -31,
+}, realZlibConstants))
diff --git a/node_modules/minizlib/index.js b/node_modules/minizlib/index.js
new file mode 100644
index 0000000..fbaf69e
--- /dev/null
+++ b/node_modules/minizlib/index.js
@@ -0,0 +1,348 @@
+'use strict'
+
+const assert = require('assert')
+const Buffer = require('buffer').Buffer
+const realZlib = require('zlib')
+
+const constants = exports.constants = require('./constants.js')
+const Minipass = require('minipass')
+
+const OriginalBufferConcat = Buffer.concat
+
+const _superWrite = Symbol('_superWrite')
+class ZlibError extends Error {
+  constructor (err) {
+    super('zlib: ' + err.message)
+    this.code = err.code
+    this.errno = err.errno
+    /* istanbul ignore if */
+    if (!this.code)
+      this.code = 'ZLIB_ERROR'
+
+    this.message = 'zlib: ' + err.message
+    Error.captureStackTrace(this, this.constructor)
+  }
+
+  get name () {
+    return 'ZlibError'
+  }
+}
+
+// the Zlib class they all inherit from
+// This thing manages the queue of requests, and returns
+// true or false if there is anything in the queue when
+// you call the .write() method.
+const _opts = Symbol('opts')
+const _flushFlag = Symbol('flushFlag')
+const _finishFlushFlag = Symbol('finishFlushFlag')
+const _fullFlushFlag = Symbol('fullFlushFlag')
+const _handle = Symbol('handle')
+const _onError = Symbol('onError')
+const _sawError = Symbol('sawError')
+const _level = Symbol('level')
+const _strategy = Symbol('strategy')
+const _ended = Symbol('ended')
+const _defaultFullFlush = Symbol('_defaultFullFlush')
+
+class ZlibBase extends Minipass {
+  constructor (opts, mode) {
+    if (!opts || typeof opts !== 'object')
+      throw new TypeError('invalid options for ZlibBase constructor')
+
+    super(opts)
+    this[_sawError] = false
+    this[_ended] = false
+    this[_opts] = opts
+
+    this[_flushFlag] = opts.flush
+    this[_finishFlushFlag] = opts.finishFlush
+    // this will throw if any options are invalid for the class selected
+    try {
+      this[_handle] = new realZlib[mode](opts)
+    } catch (er) {
+      // make sure that all errors get decorated properly
+      throw new ZlibError(er)
+    }
+
+    this[_onError] = (err) => {
+      // no sense raising multiple errors, since we abort on the first one.
+      if (this[_sawError])
+        return
+
+      this[_sawError] = true
+
+      // there is no way to cleanly recover.
+      // continuing only obscures problems.
+      this.close()
+      this.emit('error', err)
+    }
+
+    this[_handle].on('error', er => this[_onError](new ZlibError(er)))
+    this.once('end', () => this.close)
+  }
+
+  close () {
+    if (this[_handle]) {
+      this[_handle].close()
+      this[_handle] = null
+      this.emit('close')
+    }
+  }
+
+  reset () {
+    if (!this[_sawError]) {
+      assert(this[_handle], 'zlib binding closed')
+      return this[_handle].reset()
+    }
+  }
+
+  flush (flushFlag) {
+    if (this.ended)
+      return
+
+    if (typeof flushFlag !== 'number')
+      flushFlag = this[_fullFlushFlag]
+    this.write(Object.assign(Buffer.alloc(0), { [_flushFlag]: flushFlag }))
+  }
+
+  end (chunk, encoding, cb) {
+    if (chunk)
+      this.write(chunk, encoding)
+    this.flush(this[_finishFlushFlag])
+    this[_ended] = true
+    return super.end(null, null, cb)
+  }
+
+  get ended () {
+    return this[_ended]
+  }
+
+  write (chunk, encoding, cb) {
+    // process the chunk using the sync process
+    // then super.write() all the outputted chunks
+    if (typeof encoding === 'function')
+      cb = encoding, encoding = 'utf8'
+
+    if (typeof chunk === 'string')
+      chunk = Buffer.from(chunk, encoding)
+
+    if (this[_sawError])
+      return
+    assert(this[_handle], 'zlib binding closed')
+
+    // _processChunk tries to .close() the native handle after it's done, so we
+    // intercept that by temporarily making it a no-op.
+    const nativeHandle = this[_handle]._handle
+    const originalNativeClose = nativeHandle.close
+    nativeHandle.close = () => {}
+    const originalClose = this[_handle].close
+    this[_handle].close = () => {}
+    // It also calls `Buffer.concat()` at the end, which may be convenient
+    // for some, but which we are not interested in as it slows us down.
+    Buffer.concat = (args) => args
+    let result
+    try {
+      const flushFlag = typeof chunk[_flushFlag] === 'number'
+        ? chunk[_flushFlag] : this[_flushFlag]
+      result = this[_handle]._processChunk(chunk, flushFlag)
+      // if we don't throw, reset it back how it was
+      Buffer.concat = OriginalBufferConcat
+    } catch (err) {
+      // or if we do, put Buffer.concat() back before we emit error
+      // Error events call into user code, which may call Buffer.concat()
+      Buffer.concat = OriginalBufferConcat
+      this[_onError](new ZlibError(err))
+    } finally {
+      if (this[_handle]) {
+        // Core zlib resets `_handle` to null after attempting to close the
+        // native handle. Our no-op handler prevented actual closure, but we
+        // need to restore the `._handle` property.
+        this[_handle]._handle = nativeHandle
+        nativeHandle.close = originalNativeClose
+        this[_handle].close = originalClose
+        // `_processChunk()` adds an 'error' listener. If we don't remove it
+        // after each call, these handlers start piling up.
+        this[_handle].removeAllListeners('error')
+        // make sure OUR error listener is still attached tho
+      }
+    }
+
+    if (this[_handle])
+      this[_handle].on('error', er => this[_onError](new ZlibError(er)))
+
+    let writeReturn
+    if (result) {
+      if (Array.isArray(result) && result.length > 0) {
+        // The first buffer is always `handle._outBuffer`, which would be
+        // re-used for later invocations; so, we always have to copy that one.
+        writeReturn = this[_superWrite](Buffer.from(result[0]))
+        for (let i = 1; i < result.length; i++) {
+          writeReturn = this[_superWrite](result[i])
+        }
+      } else {
+        writeReturn = this[_superWrite](Buffer.from(result))
+      }
+    }
+
+    if (cb)
+      cb()
+    return writeReturn
+  }
+
+  [_superWrite] (data) {
+    return super.write(data)
+  }
+}
+
+class Zlib extends ZlibBase {
+  constructor (opts, mode) {
+    opts = opts || {}
+
+    opts.flush = opts.flush || constants.Z_NO_FLUSH
+    opts.finishFlush = opts.finishFlush || constants.Z_FINISH
+    super(opts, mode)
+
+    this[_fullFlushFlag] = constants.Z_FULL_FLUSH
+    this[_level] = opts.level
+    this[_strategy] = opts.strategy
+  }
+
+  params (level, strategy) {
+    if (this[_sawError])
+      return
+
+    if (!this[_handle])
+      throw new Error('cannot switch params when binding is closed')
+
+    // no way to test this without also not supporting params at all
+    /* istanbul ignore if */
+    if (!this[_handle].params)
+      throw new Error('not supported in this implementation')
+
+    if (this[_level] !== level || this[_strategy] !== strategy) {
+      this.flush(constants.Z_SYNC_FLUSH)
+      assert(this[_handle], 'zlib binding closed')
+      // .params() calls .flush(), but the latter is always async in the
+      // core zlib. We override .flush() temporarily to intercept that and
+      // flush synchronously.
+      const origFlush = this[_handle].flush
+      this[_handle].flush = (flushFlag, cb) => {
+        this.flush(flushFlag)
+        cb()
+      }
+      try {
+        this[_handle].params(level, strategy)
+      } finally {
+        this[_handle].flush = origFlush
+      }
+      /* istanbul ignore else */
+      if (this[_handle]) {
+        this[_level] = level
+        this[_strategy] = strategy
+      }
+    }
+  }
+}
+
+// minimal 2-byte header
+class Deflate extends Zlib {
+  constructor (opts) {
+    super(opts, 'Deflate')
+  }
+}
+
+class Inflate extends Zlib {
+  constructor (opts) {
+    super(opts, 'Inflate')
+  }
+}
+
+// gzip - bigger header, same deflate compression
+const _portable = Symbol('_portable')
+class Gzip extends Zlib {
+  constructor (opts) {
+    super(opts, 'Gzip')
+    this[_portable] = opts && !!opts.portable
+  }
+
+  [_superWrite] (data) {
+    if (!this[_portable])
+      return super[_superWrite](data)
+
+    // we'll always get the header emitted in one first chunk
+    // overwrite the OS indicator byte with 0xFF
+    this[_portable] = false
+    data[9] = 255
+    return super[_superWrite](data)
+  }
+}
+
+class Gunzip extends Zlib {
+  constructor (opts) {
+    super(opts, 'Gunzip')
+  }
+}
+
+// raw - no header
+class DeflateRaw extends Zlib {
+  constructor (opts) {
+    super(opts, 'DeflateRaw')
+  }
+}
+
+class InflateRaw extends Zlib {
+  constructor (opts) {
+    super(opts, 'InflateRaw')
+  }
+}
+
+// auto-detect header.
+class Unzip extends Zlib {
+  constructor (opts) {
+    super(opts, 'Unzip')
+  }
+}
+
+class Brotli extends ZlibBase {
+  constructor (opts, mode) {
+    opts = opts || {}
+
+    opts.flush = opts.flush || constants.BROTLI_OPERATION_PROCESS
+    opts.finishFlush = opts.finishFlush || constants.BROTLI_OPERATION_FINISH
+
+    super(opts, mode)
+
+    this[_fullFlushFlag] = constants.BROTLI_OPERATION_FLUSH
+  }
+}
+
+class BrotliCompress extends Brotli {
+  constructor (opts) {
+    super(opts, 'BrotliCompress')
+  }
+}
+
+class BrotliDecompress extends Brotli {
+  constructor (opts) {
+    super(opts, 'BrotliDecompress')
+  }
+}
+
+exports.Deflate = Deflate
+exports.Inflate = Inflate
+exports.Gzip = Gzip
+exports.Gunzip = Gunzip
+exports.DeflateRaw = DeflateRaw
+exports.InflateRaw = InflateRaw
+exports.Unzip = Unzip
+/* istanbul ignore else */
+if (typeof realZlib.BrotliCompress === 'function') {
+  exports.BrotliCompress = BrotliCompress
+  exports.BrotliDecompress = BrotliDecompress
+} else {
+  exports.BrotliCompress = exports.BrotliDecompress = class {
+    constructor () {
+      throw new Error('Brotli is not supported in this version of Node.js')
+    }
+  }
+}
diff --git a/node_modules/minizlib/package.json b/node_modules/minizlib/package.json
new file mode 100644
index 0000000..98825a5
--- /dev/null
+++ b/node_modules/minizlib/package.json
@@ -0,0 +1,42 @@
+{
+  "name": "minizlib",
+  "version": "2.1.2",
+  "description": "A small fast zlib stream built on [minipass](http://npm.im/minipass) and Node.js's zlib binding.",
+  "main": "index.js",
+  "dependencies": {
+    "minipass": "^3.0.0",
+    "yallist": "^4.0.0"
+  },
+  "scripts": {
+    "test": "tap test/*.js --100 -J",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --all; git push origin --tags"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/isaacs/minizlib.git"
+  },
+  "keywords": [
+    "zlib",
+    "gzip",
+    "gunzip",
+    "deflate",
+    "inflate",
+    "compression",
+    "zip",
+    "unzip"
+  ],
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "MIT",
+  "devDependencies": {
+    "tap": "^14.6.9"
+  },
+  "files": [
+    "index.js",
+    "constants.js"
+  ],
+  "engines": {
+    "node": ">= 8"
+  }
+}
diff --git a/node_modules/mkdirp/CHANGELOG.md b/node_modules/mkdirp/CHANGELOG.md
new file mode 100644
index 0000000..8145838
--- /dev/null
+++ b/node_modules/mkdirp/CHANGELOG.md
@@ -0,0 +1,15 @@
+# Changers Lorgs!
+
+## 1.0
+
+Full rewrite.  Essentially a brand new module.
+
+- Return a promise instead of taking a callback.
+- Use native `fs.mkdir(path, { recursive: true })` when available.
+- Drop support for outdated Node.js versions.  (Technically still works on
+  Node.js v8, but only 10 and above are officially supported.)
+
+## 0.x
+
+Original and most widely used recursive directory creation implementation
+in JavaScript, dating back to 2010.
diff --git a/node_modules/mkdirp/LICENSE b/node_modules/mkdirp/LICENSE
new file mode 100644
index 0000000..13fcd15
--- /dev/null
+++ b/node_modules/mkdirp/LICENSE
@@ -0,0 +1,21 @@
+Copyright James Halliday (mail@substack.net) and Isaac Z. Schlueter (i@izs.me)
+
+This project is free software released under the MIT license:
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/node_modules/mkdirp/bin/cmd.js b/node_modules/mkdirp/bin/cmd.js
new file mode 100644
index 0000000..6e0aa8d
--- /dev/null
+++ b/node_modules/mkdirp/bin/cmd.js
@@ -0,0 +1,68 @@
+#!/usr/bin/env node
+
+const usage = () => `
+usage: mkdirp [DIR1,DIR2..] {OPTIONS}
+
+  Create each supplied directory including any necessary parent directories
+  that don't yet exist.
+
+  If the directory already exists, do nothing.
+
+OPTIONS are:
+
+  -m<mode>       If a directory needs to be created, set the mode as an octal
+  --mode=<mode>  permission string.
+
+  -v --version   Print the mkdirp version number
+
+  -h --help      Print this helpful banner
+
+  -p --print     Print the first directories created for each path provided
+
+  --manual       Use manual implementation, even if native is available
+`
+
+const dirs = []
+const opts = {}
+let print = false
+let dashdash = false
+let manual = false
+for (const arg of process.argv.slice(2)) {
+  if (dashdash)
+    dirs.push(arg)
+  else if (arg === '--')
+    dashdash = true
+  else if (arg === '--manual')
+    manual = true
+  else if (/^-h/.test(arg) || /^--help/.test(arg)) {
+    console.log(usage())
+    process.exit(0)
+  } else if (arg === '-v' || arg === '--version') {
+    console.log(require('../package.json').version)
+    process.exit(0)
+  } else if (arg === '-p' || arg === '--print') {
+    print = true
+  } else if (/^-m/.test(arg) || /^--mode=/.test(arg)) {
+    const mode = parseInt(arg.replace(/^(-m|--mode=)/, ''), 8)
+    if (isNaN(mode)) {
+      console.error(`invalid mode argument: ${arg}\nMust be an octal number.`)
+      process.exit(1)
+    }
+    opts.mode = mode
+  } else
+    dirs.push(arg)
+}
+
+const mkdirp = require('../')
+const impl = manual ? mkdirp.manual : mkdirp
+if (dirs.length === 0)
+  console.error(usage())
+
+Promise.all(dirs.map(dir => impl(dir, opts)))
+  .then(made => print ? made.forEach(m => m && console.log(m)) : null)
+  .catch(er => {
+    console.error(er.message)
+    if (er.code)
+      console.error('  code: ' + er.code)
+    process.exit(1)
+  })
diff --git a/node_modules/mkdirp/index.js b/node_modules/mkdirp/index.js
new file mode 100644
index 0000000..ad7a16c
--- /dev/null
+++ b/node_modules/mkdirp/index.js
@@ -0,0 +1,31 @@
+const optsArg = require('./lib/opts-arg.js')
+const pathArg = require('./lib/path-arg.js')
+
+const {mkdirpNative, mkdirpNativeSync} = require('./lib/mkdirp-native.js')
+const {mkdirpManual, mkdirpManualSync} = require('./lib/mkdirp-manual.js')
+const {useNative, useNativeSync} = require('./lib/use-native.js')
+
+
+const mkdirp = (path, opts) => {
+  path = pathArg(path)
+  opts = optsArg(opts)
+  return useNative(opts)
+    ? mkdirpNative(path, opts)
+    : mkdirpManual(path, opts)
+}
+
+const mkdirpSync = (path, opts) => {
+  path = pathArg(path)
+  opts = optsArg(opts)
+  return useNativeSync(opts)
+    ? mkdirpNativeSync(path, opts)
+    : mkdirpManualSync(path, opts)
+}
+
+mkdirp.sync = mkdirpSync
+mkdirp.native = (path, opts) => mkdirpNative(pathArg(path), optsArg(opts))
+mkdirp.manual = (path, opts) => mkdirpManual(pathArg(path), optsArg(opts))
+mkdirp.nativeSync = (path, opts) => mkdirpNativeSync(pathArg(path), optsArg(opts))
+mkdirp.manualSync = (path, opts) => mkdirpManualSync(pathArg(path), optsArg(opts))
+
+module.exports = mkdirp
diff --git a/node_modules/mkdirp/lib/find-made.js b/node_modules/mkdirp/lib/find-made.js
new file mode 100644
index 0000000..022e492
--- /dev/null
+++ b/node_modules/mkdirp/lib/find-made.js
@@ -0,0 +1,29 @@
+const {dirname} = require('path')
+
+const findMade = (opts, parent, path = undefined) => {
+  // we never want the 'made' return value to be a root directory
+  if (path === parent)
+    return Promise.resolve()
+
+  return opts.statAsync(parent).then(
+    st => st.isDirectory() ? path : undefined, // will fail later
+    er => er.code === 'ENOENT'
+      ? findMade(opts, dirname(parent), parent)
+      : undefined
+  )
+}
+
+const findMadeSync = (opts, parent, path = undefined) => {
+  if (path === parent)
+    return undefined
+
+  try {
+    return opts.statSync(parent).isDirectory() ? path : undefined
+  } catch (er) {
+    return er.code === 'ENOENT'
+      ? findMadeSync(opts, dirname(parent), parent)
+      : undefined
+  }
+}
+
+module.exports = {findMade, findMadeSync}
diff --git a/node_modules/mkdirp/lib/mkdirp-manual.js b/node_modules/mkdirp/lib/mkdirp-manual.js
new file mode 100644
index 0000000..2eb18cd
--- /dev/null
+++ b/node_modules/mkdirp/lib/mkdirp-manual.js
@@ -0,0 +1,64 @@
+const {dirname} = require('path')
+
+const mkdirpManual = (path, opts, made) => {
+  opts.recursive = false
+  const parent = dirname(path)
+  if (parent === path) {
+    return opts.mkdirAsync(path, opts).catch(er => {
+      // swallowed by recursive implementation on posix systems
+      // any other error is a failure
+      if (er.code !== 'EISDIR')
+        throw er
+    })
+  }
+
+  return opts.mkdirAsync(path, opts).then(() => made || path, er => {
+    if (er.code === 'ENOENT')
+      return mkdirpManual(parent, opts)
+        .then(made => mkdirpManual(path, opts, made))
+    if (er.code !== 'EEXIST' && er.code !== 'EROFS')
+      throw er
+    return opts.statAsync(path).then(st => {
+      if (st.isDirectory())
+        return made
+      else
+        throw er
+    }, () => { throw er })
+  })
+}
+
+const mkdirpManualSync = (path, opts, made) => {
+  const parent = dirname(path)
+  opts.recursive = false
+
+  if (parent === path) {
+    try {
+      return opts.mkdirSync(path, opts)
+    } catch (er) {
+      // swallowed by recursive implementation on posix systems
+      // any other error is a failure
+      if (er.code !== 'EISDIR')
+        throw er
+      else
+        return
+    }
+  }
+
+  try {
+    opts.mkdirSync(path, opts)
+    return made || path
+  } catch (er) {
+    if (er.code === 'ENOENT')
+      return mkdirpManualSync(path, opts, mkdirpManualSync(parent, opts, made))
+    if (er.code !== 'EEXIST' && er.code !== 'EROFS')
+      throw er
+    try {
+      if (!opts.statSync(path).isDirectory())
+        throw er
+    } catch (_) {
+      throw er
+    }
+  }
+}
+
+module.exports = {mkdirpManual, mkdirpManualSync}
diff --git a/node_modules/mkdirp/lib/mkdirp-native.js b/node_modules/mkdirp/lib/mkdirp-native.js
new file mode 100644
index 0000000..c7a6b69
--- /dev/null
+++ b/node_modules/mkdirp/lib/mkdirp-native.js
@@ -0,0 +1,39 @@
+const {dirname} = require('path')
+const {findMade, findMadeSync} = require('./find-made.js')
+const {mkdirpManual, mkdirpManualSync} = require('./mkdirp-manual.js')
+
+const mkdirpNative = (path, opts) => {
+  opts.recursive = true
+  const parent = dirname(path)
+  if (parent === path)
+    return opts.mkdirAsync(path, opts)
+
+  return findMade(opts, path).then(made =>
+    opts.mkdirAsync(path, opts).then(() => made)
+    .catch(er => {
+      if (er.code === 'ENOENT')
+        return mkdirpManual(path, opts)
+      else
+        throw er
+    }))
+}
+
+const mkdirpNativeSync = (path, opts) => {
+  opts.recursive = true
+  const parent = dirname(path)
+  if (parent === path)
+    return opts.mkdirSync(path, opts)
+
+  const made = findMadeSync(opts, path)
+  try {
+    opts.mkdirSync(path, opts)
+    return made
+  } catch (er) {
+    if (er.code === 'ENOENT')
+      return mkdirpManualSync(path, opts)
+    else
+      throw er
+  }
+}
+
+module.exports = {mkdirpNative, mkdirpNativeSync}
diff --git a/node_modules/mkdirp/lib/opts-arg.js b/node_modules/mkdirp/lib/opts-arg.js
new file mode 100644
index 0000000..2fa4833
--- /dev/null
+++ b/node_modules/mkdirp/lib/opts-arg.js
@@ -0,0 +1,23 @@
+const { promisify } = require('util')
+const fs = require('fs')
+const optsArg = opts => {
+  if (!opts)
+    opts = { mode: 0o777, fs }
+  else if (typeof opts === 'object')
+    opts = { mode: 0o777, fs, ...opts }
+  else if (typeof opts === 'number')
+    opts = { mode: opts, fs }
+  else if (typeof opts === 'string')
+    opts = { mode: parseInt(opts, 8), fs }
+  else
+    throw new TypeError('invalid options argument')
+
+  opts.mkdir = opts.mkdir || opts.fs.mkdir || fs.mkdir
+  opts.mkdirAsync = promisify(opts.mkdir)
+  opts.stat = opts.stat || opts.fs.stat || fs.stat
+  opts.statAsync = promisify(opts.stat)
+  opts.statSync = opts.statSync || opts.fs.statSync || fs.statSync
+  opts.mkdirSync = opts.mkdirSync || opts.fs.mkdirSync || fs.mkdirSync
+  return opts
+}
+module.exports = optsArg
diff --git a/node_modules/mkdirp/lib/path-arg.js b/node_modules/mkdirp/lib/path-arg.js
new file mode 100644
index 0000000..cc07de5
--- /dev/null
+++ b/node_modules/mkdirp/lib/path-arg.js
@@ -0,0 +1,29 @@
+const platform = process.env.__TESTING_MKDIRP_PLATFORM__ || process.platform
+const { resolve, parse } = require('path')
+const pathArg = path => {
+  if (/\0/.test(path)) {
+    // simulate same failure that node raises
+    throw Object.assign(
+      new TypeError('path must be a string without null bytes'),
+      {
+        path,
+        code: 'ERR_INVALID_ARG_VALUE',
+      }
+    )
+  }
+
+  path = resolve(path)
+  if (platform === 'win32') {
+    const badWinChars = /[*|"<>?:]/
+    const {root} = parse(path)
+    if (badWinChars.test(path.substr(root.length))) {
+      throw Object.assign(new Error('Illegal characters in path.'), {
+        path,
+        code: 'EINVAL',
+      })
+    }
+  }
+
+  return path
+}
+module.exports = pathArg
diff --git a/node_modules/mkdirp/lib/use-native.js b/node_modules/mkdirp/lib/use-native.js
new file mode 100644
index 0000000..079361d
--- /dev/null
+++ b/node_modules/mkdirp/lib/use-native.js
@@ -0,0 +1,10 @@
+const fs = require('fs')
+
+const version = process.env.__TESTING_MKDIRP_NODE_VERSION__ || process.version
+const versArr = version.replace(/^v/, '').split('.')
+const hasNative = +versArr[0] > 10 || +versArr[0] === 10 && +versArr[1] >= 12
+
+const useNative = !hasNative ? () => false : opts => opts.mkdir === fs.mkdir
+const useNativeSync = !hasNative ? () => false : opts => opts.mkdirSync === fs.mkdirSync
+
+module.exports = {useNative, useNativeSync}
diff --git a/node_modules/mkdirp/package.json b/node_modules/mkdirp/package.json
new file mode 100644
index 0000000..2913ed0
--- /dev/null
+++ b/node_modules/mkdirp/package.json
@@ -0,0 +1,44 @@
+{
+  "name": "mkdirp",
+  "description": "Recursively mkdir, like `mkdir -p`",
+  "version": "1.0.4",
+  "main": "index.js",
+  "keywords": [
+    "mkdir",
+    "directory",
+    "make dir",
+    "make",
+    "dir",
+    "recursive",
+    "native"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/isaacs/node-mkdirp.git"
+  },
+  "scripts": {
+    "test": "tap",
+    "snap": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags"
+  },
+  "tap": {
+    "check-coverage": true,
+    "coverage-map": "map.js"
+  },
+  "devDependencies": {
+    "require-inject": "^1.4.4",
+    "tap": "^14.10.7"
+  },
+  "bin": "bin/cmd.js",
+  "license": "MIT",
+  "engines": {
+    "node": ">=10"
+  },
+  "files": [
+    "bin",
+    "lib",
+    "index.js"
+  ]
+}
diff --git a/node_modules/mkdirp/readme.markdown b/node_modules/mkdirp/readme.markdown
new file mode 100644
index 0000000..827de59
--- /dev/null
+++ b/node_modules/mkdirp/readme.markdown
@@ -0,0 +1,266 @@
+# mkdirp
+
+Like `mkdir -p`, but in Node.js!
+
+Now with a modern API and no\* bugs!
+
+<small>\* may contain some bugs</small>
+
+# example
+
+## pow.js
+
+```js
+const mkdirp = require('mkdirp')
+
+// return value is a Promise resolving to the first directory created
+mkdirp('/tmp/foo/bar/baz').then(made =>
+  console.log(`made directories, starting with ${made}`))
+```
+
+Output (where `/tmp/foo` already exists)
+
+```
+made directories, starting with /tmp/foo/bar
+```
+
+Or, if you don't have time to wait around for promises:
+
+```js
+const mkdirp = require('mkdirp')
+
+// return value is the first directory created
+const made = mkdirp.sync('/tmp/foo/bar/baz')
+console.log(`made directories, starting with ${made}`)
+```
+
+And now /tmp/foo/bar/baz exists, huzzah!
+
+# methods
+
+```js
+const mkdirp = require('mkdirp')
+```
+
+## mkdirp(dir, [opts]) -> Promise<String | undefined>
+
+Create a new directory and any necessary subdirectories at `dir` with octal
+permission string `opts.mode`. If `opts` is a string or number, it will be
+treated as the `opts.mode`.
+
+If `opts.mode` isn't specified, it defaults to `0o777 &
+(~process.umask())`.
+
+Promise resolves to first directory `made` that had to be created, or
+`undefined` if everything already exists.  Promise rejects if any errors
+are encountered.  Note that, in the case of promise rejection, some
+directories _may_ have been created, as recursive directory creation is not
+an atomic operation.
+
+You can optionally pass in an alternate `fs` implementation by passing in
+`opts.fs`. Your implementation should have `opts.fs.mkdir(path, opts, cb)`
+and `opts.fs.stat(path, cb)`.
+
+You can also override just one or the other of `mkdir` and `stat` by
+passing in `opts.stat` or `opts.mkdir`, or providing an `fs` option that
+only overrides one of these.
+
+## mkdirp.sync(dir, opts) -> String|null
+
+Synchronously create a new directory and any necessary subdirectories at
+`dir` with octal permission string `opts.mode`. If `opts` is a string or
+number, it will be treated as the `opts.mode`.
+
+If `opts.mode` isn't specified, it defaults to `0o777 &
+(~process.umask())`.
+
+Returns the first directory that had to be created, or undefined if
+everything already exists.
+
+You can optionally pass in an alternate `fs` implementation by passing in
+`opts.fs`. Your implementation should have `opts.fs.mkdirSync(path, mode)`
+and `opts.fs.statSync(path)`.
+
+You can also override just one or the other of `mkdirSync` and `statSync`
+by passing in `opts.statSync` or `opts.mkdirSync`, or providing an `fs`
+option that only overrides one of these.
+
+## mkdirp.manual, mkdirp.manualSync
+
+Use the manual implementation (not the native one).  This is the default
+when the native implementation is not available or the stat/mkdir
+implementation is overridden.
+
+## mkdirp.native, mkdirp.nativeSync
+
+Use the native implementation (not the manual one).  This is the default
+when the native implementation is available and stat/mkdir are not
+overridden.
+
+# implementation
+
+On Node.js v10.12.0 and above, use the native `fs.mkdir(p,
+{recursive:true})` option, unless `fs.mkdir`/`fs.mkdirSync` has been
+overridden by an option.
+
+## native implementation
+
+- If the path is a root directory, then pass it to the underlying
+  implementation and return the result/error.  (In this case, it'll either
+  succeed or fail, but we aren't actually creating any dirs.)
+- Walk up the path statting each directory, to find the first path that
+  will be created, `made`.
+- Call `fs.mkdir(path, { recursive: true })` (or `fs.mkdirSync`)
+- If error, raise it to the caller.
+- Return `made`.
+
+## manual implementation
+
+- Call underlying `fs.mkdir` implementation, with `recursive: false`
+- If error:
+  - If path is a root directory, raise to the caller and do not handle it
+  - If ENOENT, mkdirp parent dir, store result as `made`
+  - stat(path)
+    - If error, raise original `mkdir` error
+    - If directory, return `made`
+    - Else, raise original `mkdir` error
+- else
+  - return `undefined` if a root dir, or `made` if set, or `path`
+
+## windows vs unix caveat
+
+On Windows file systems, attempts to create a root directory (ie, a drive
+letter or root UNC path) will fail.  If the root directory exists, then it
+will fail with `EPERM`.  If the root directory does not exist, then it will
+fail with `ENOENT`.
+
+On posix file systems, attempts to create a root directory (in recursive
+mode) will succeed silently, as it is treated like just another directory
+that already exists.  (In non-recursive mode, of course, it fails with
+`EEXIST`.)
+
+In order to preserve this system-specific behavior (and because it's not as
+if we can create the parent of a root directory anyway), attempts to create
+a root directory are passed directly to the `fs` implementation, and any
+errors encountered are not handled.
+
+## native error caveat
+
+The native implementation (as of at least Node.js v13.4.0) does not provide
+appropriate errors in some cases (see
+[nodejs/node#31481](https://github.com/nodejs/node/issues/31481) and
+[nodejs/node#28015](https://github.com/nodejs/node/issues/28015)).
+
+In order to work around this issue, the native implementation will fall
+back to the manual implementation if an `ENOENT` error is encountered.
+
+# choosing a recursive mkdir implementation
+
+There are a few to choose from!  Use the one that suits your needs best :D
+
+## use `fs.mkdir(path, {recursive: true}, cb)` if:
+
+- You wish to optimize performance even at the expense of other factors.
+- You don't need to know the first dir created.
+- You are ok with getting `ENOENT` as the error when some other problem is
+  the actual cause.
+- You can limit your platforms to Node.js v10.12 and above.
+- You're ok with using callbacks instead of promises.
+- You don't need/want a CLI.
+- You don't need to override the `fs` methods in use.
+
+## use this module (mkdirp 1.x) if:
+
+- You need to know the first directory that was created.
+- You wish to use the native implementation if available, but fall back
+  when it's not.
+- You prefer promise-returning APIs to callback-taking APIs.
+- You want more useful error messages than the native recursive mkdir
+  provides (at least as of Node.js v13.4), and are ok with re-trying on
+  `ENOENT` to achieve this.
+- You need (or at least, are ok with) a CLI.
+- You need to override the `fs` methods in use.
+
+## use [`make-dir`](http://npm.im/make-dir) if:
+
+- You do not need to know the first dir created (and wish to save a few
+  `stat` calls when using the native implementation for this reason).
+- You wish to use the native implementation if available, but fall back
+  when it's not.
+- You prefer promise-returning APIs to callback-taking APIs.
+- You are ok with occasionally getting `ENOENT` errors for failures that
+  are actually related to something other than a missing file system entry.
+- You don't need/want a CLI.
+- You need to override the `fs` methods in use.
+
+## use mkdirp 0.x if:
+
+- You need to know the first directory that was created.
+- You need (or at least, are ok with) a CLI.
+- You need to override the `fs` methods in use.
+- You're ok with using callbacks instead of promises.
+- You are not running on Windows, where the root-level ENOENT errors can
+  lead to infinite regress.
+- You think vinyl just sounds warmer and richer for some weird reason.
+- You are supporting truly ancient Node.js versions, before even the advent
+  of a `Promise` language primitive.  (Please don't.  You deserve better.)
+
+# cli
+
+This package also ships with a `mkdirp` command.
+
+```
+$ mkdirp -h
+
+usage: mkdirp [DIR1,DIR2..] {OPTIONS}
+
+  Create each supplied directory including any necessary parent directories
+  that don't yet exist.
+
+  If the directory already exists, do nothing.
+
+OPTIONS are:
+
+  -m<mode>       If a directory needs to be created, set the mode as an octal
+  --mode=<mode>  permission string.
+
+  -v --version   Print the mkdirp version number
+
+  -h --help      Print this helpful banner
+
+  -p --print     Print the first directories created for each path provided
+
+  --manual       Use manual implementation, even if native is available
+```
+
+# install
+
+With [npm](http://npmjs.org) do:
+
+```
+npm install mkdirp
+```
+
+to get the library locally, or
+
+```
+npm install -g mkdirp
+```
+
+to get the command everywhere, or
+
+```
+npx mkdirp ...
+```
+
+to run the command without installing it globally.
+
+# platform support
+
+This module works on node v8, but only v10 and above are officially
+supported, as Node v8 reached its LTS end of life 2020-01-01, which is in
+the past, as of this writing.
+
+# license
+
+MIT
diff --git a/node_modules/node-addon-api/LICENSE.md b/node_modules/node-addon-api/LICENSE.md
new file mode 100644
index 0000000..e2fad66
--- /dev/null
+++ b/node_modules/node-addon-api/LICENSE.md
@@ -0,0 +1,13 @@
+The MIT License (MIT)
+=====================
+
+Copyright (c) 2017 Node.js API collaborators
+-----------------------------------
+
+*Node.js API collaborators listed at <https://github.com/nodejs/node-addon-api#collaborators>*
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/node_modules/node-addon-api/README.md b/node_modules/node-addon-api/README.md
new file mode 100644
index 0000000..db7cb7f
--- /dev/null
+++ b/node_modules/node-addon-api/README.md
@@ -0,0 +1,293 @@
+NOTE: The default branch has been renamed!
+master is now named main
+
+If you have a local clone, you can update it by running:
+
+```shell
+git branch -m master main
+git fetch origin
+git branch -u origin/main main
+```
+
+# **node-addon-api module**
+This module contains **header-only C++ wrapper classes** which simplify
+the use of the C based [Node-API](https://nodejs.org/dist/latest/docs/api/n-api.html)
+provided by Node.js when using C++. It provides a C++ object model
+and exception handling semantics with low overhead.
+
+There are three options for implementing addons: Node-API, nan, or direct
+use of internal V8, libuv and Node.js libraries. Unless there is a need for
+direct access to functionality which is not exposed by Node-API as outlined
+in [C/C++ addons](https://nodejs.org/dist/latest/docs/api/addons.html)
+in Node.js core, use Node-API. Refer to
+[C/C++ addons with Node-API](https://nodejs.org/dist/latest/docs/api/n-api.html)
+for more information on Node-API.
+
+Node-API is an ABI stable C interface provided by Node.js for building native
+addons. It is independent from the underlying JavaScript runtime (e.g. V8 or ChakraCore)
+and is maintained as part of Node.js itself. It is intended to insulate
+native addons from changes in the underlying JavaScript engine and allow
+modules compiled for one version to run on later versions of Node.js without
+recompilation.
+
+The `node-addon-api` module, which is not part of Node.js, preserves the benefits
+of the Node-API as it consists only of inline code that depends only on the stable API
+provided by Node-API. As such, modules built against one version of Node.js
+using node-addon-api should run without having to be rebuilt with newer versions
+of Node.js.
+
+It is important to remember that *other* Node.js interfaces such as
+`libuv` (included in a project via `#include <uv.h>`) are not ABI-stable across
+Node.js major versions. Thus, an addon must use Node-API and/or `node-addon-api`
+exclusively and build against a version of Node.js that includes an
+implementation of Node-API (meaning an active LTS version of Node.js) in
+order to benefit from ABI stability across Node.js major versions. Node.js
+provides an [ABI stability guide][] containing a detailed explanation of ABI
+stability in general, and the Node-API ABI stability guarantee in particular.
+
+As new APIs are added to Node-API, node-addon-api must be updated to provide
+wrappers for those new APIs. For this reason node-addon-api provides
+methods that allow callers to obtain the underlying Node-API handles so
+direct calls to Node-API and the use of the objects/methods provided by
+node-addon-api can be used together. For example, in order to be able
+to use an API for which the node-addon-api does not yet provide a wrapper.
+
+APIs exposed by node-addon-api are generally used to create and
+manipulate JavaScript values. Concepts and operations generally map
+to ideas specified in the **ECMA262 Language Specification**.
+
+The [Node-API Resource](https://nodejs.github.io/node-addon-examples/) offers an
+excellent orientation and tips for developers just getting started with Node-API
+and node-addon-api.
+
+- **[Setup](#setup)**
+- **[API Documentation](#api)**
+- **[Examples](#examples)**
+- **[Tests](#tests)**
+- **[More resource and info about native Addons](#resources)**
+- **[Badges](#badges)**
+- **[Code of Conduct](CODE_OF_CONDUCT.md)**
+- **[Contributors](#contributors)**
+- **[License](#license)**
+
+## **Current version: 4.3.0**
+
+(See [CHANGELOG.md](CHANGELOG.md) for complete Changelog)
+
+[![NPM](https://nodei.co/npm/node-addon-api.png?downloads=true&downloadRank=true)](https://nodei.co/npm/node-addon-api/) [![NPM](https://nodei.co/npm-dl/node-addon-api.png?months=6&height=1)](https://nodei.co/npm/node-addon-api/)
+
+<a name="setup"></a>
+
+node-addon-api is based on [Node-API](https://nodejs.org/api/n-api.html) and supports using different Node-API versions.
+This allows addons built with it to run with Node.js versions which support the targeted Node-API version.
+**However** the node-addon-api support model is to support only the active LTS Node.js versions. This means that
+every year there will be a new major which drops support for the Node.js LTS version which has gone out of service.
+
+The oldest Node.js version supported by the current version of node-addon-api is Node.js 12.x.
+
+## Setup
+  - [Installation and usage](doc/setup.md)
+  - [node-gyp](doc/node-gyp.md)
+  - [cmake-js](doc/cmake-js.md)
+  - [Conversion tool](doc/conversion-tool.md)
+  - [Checker tool](doc/checker-tool.md)
+  - [Generator](doc/generator.md)
+  - [Prebuild tools](doc/prebuild_tools.md)
+
+<a name="api"></a>
+
+### **API Documentation**
+
+The following is the documentation for node-addon-api.
+
+ - [Full Class Hierarchy](doc/hierarchy.md)
+ - [Addon Structure](doc/addon.md)
+ - Data Types:
+    - [Env](doc/env.md)
+    - [CallbackInfo](doc/callbackinfo.md)
+    - [Reference](doc/reference.md)
+    - [Value](doc/value.md)
+        - [Name](doc/name.md)
+            - [Symbol](doc/symbol.md)
+            - [String](doc/string.md)
+        - [Number](doc/number.md)
+        - [Date](doc/date.md)
+        - [BigInt](doc/bigint.md)
+        - [Boolean](doc/boolean.md)
+        - [External](doc/external.md)
+        - [Object](doc/object.md)
+            - [Array](doc/array.md)
+            - [ObjectReference](doc/object_reference.md)
+    - [PropertyDescriptor](doc/property_descriptor.md)
+    - [Function](doc/function.md)
+        - [FunctionReference](doc/function_reference.md)
+    - [ObjectWrap](doc/object_wrap.md)
+        - [ClassPropertyDescriptor](doc/class_property_descriptor.md)
+    - [Buffer](doc/buffer.md)
+    - [ArrayBuffer](doc/array_buffer.md)
+    - [TypedArray](doc/typed_array.md)
+      - [TypedArrayOf](doc/typed_array_of.md)
+    - [DataView](doc/dataview.md)
+ - [Error Handling](doc/error_handling.md)
+    - [Error](doc/error.md)
+      - [TypeError](doc/type_error.md)
+      - [RangeError](doc/range_error.md)
+ - [Object Lifetime Management](doc/object_lifetime_management.md)
+    - [HandleScope](doc/handle_scope.md)
+    - [EscapableHandleScope](doc/escapable_handle_scope.md)
+ - [Memory Management](doc/memory_management.md)
+ - [Async Operations](doc/async_operations.md)
+    - [AsyncWorker](doc/async_worker.md)
+    - [AsyncContext](doc/async_context.md)
+    - [AsyncWorker Variants](doc/async_worker_variants.md)
+ - [Thread-safe Functions](doc/threadsafe.md)
+    - [ThreadSafeFunction](doc/threadsafe_function.md)
+    - [TypedThreadSafeFunction](doc/typed_threadsafe_function.md)
+ - [Promises](doc/promises.md)
+ - [Version management](doc/version_management.md)
+
+<a name="examples"></a>
+
+### **Examples**
+
+Are you new to **node-addon-api**? Take a look at our **[examples](https://github.com/nodejs/node-addon-examples)**
+
+- **[Hello World](https://github.com/nodejs/node-addon-examples/tree/HEAD/1_hello_world/node-addon-api)**
+- **[Pass arguments to a function](https://github.com/nodejs/node-addon-examples/tree/HEAD/2_function_arguments/node-addon-api)**
+- **[Callbacks](https://github.com/nodejs/node-addon-examples/tree/HEAD/3_callbacks/node-addon-api)**
+- **[Object factory](https://github.com/nodejs/node-addon-examples/tree/HEAD/4_object_factory/node-addon-api)**
+- **[Function factory](https://github.com/nodejs/node-addon-examples/tree/HEAD/5_function_factory/node-addon-api)**
+- **[Wrapping C++ Object](https://github.com/nodejs/node-addon-examples/tree/HEAD/6_object_wrap/node-addon-api)**
+- **[Factory of wrapped object](https://github.com/nodejs/node-addon-examples/tree/HEAD/7_factory_wrap/node-addon-api)**
+- **[Passing wrapped object around](https://github.com/nodejs/node-addon-examples/tree/HEAD/8_passing_wrapped/node-addon-api)**
+
+<a name="tests"></a>
+
+### **Tests**
+
+To run the **node-addon-api** tests do:
+
+```
+npm install
+npm test
+```
+
+To avoid testing the deprecated portions of the API run
+```
+npm install
+npm test --disable-deprecated
+```
+
+To run the tests targeting a specific version of Node-API run
+```
+npm install
+export NAPI_VERSION=X
+npm test --NAPI_VERSION=X
+```
+
+where X is the version of Node-API you want to target.
+
+### **Debug**
+
+To run the **node-addon-api** tests with `--debug` option:
+
+```
+npm run-script dev
+```
+
+If you want faster build, you might use the following option:
+
+```
+npm run-script dev:incremental
+```
+
+Take a look and get inspired by our **[test suite](https://github.com/nodejs/node-addon-api/tree/HEAD/test)**
+
+### **Benchmarks**
+
+You can run the available benchmarks using the following command:
+
+```
+npm run-script benchmark
+```
+
+See [benchmark/README.md](benchmark/README.md) for more details about running and adding benchmarks.
+
+<a name="resources"></a>
+
+### **More resource and info about native Addons**
+- **[C++ Addons](https://nodejs.org/dist/latest/docs/api/addons.html)**
+- **[Node-API](https://nodejs.org/dist/latest/docs/api/n-api.html)**
+- **[Node-API - Next Generation Node API for Native Modules](https://youtu.be/-Oniup60Afs)**
+- **[How We Migrated Realm JavaScript From NAN to Node-API](https://developer.mongodb.com/article/realm-javascript-nan-to-n-api)**
+
+As node-addon-api's core mission is to expose the plain C Node-API as C++
+wrappers, tools that facilitate n-api/node-addon-api providing more
+convenient patterns on developing a Node.js add-ons with n-api/node-addon-api
+can be published to NPM as standalone packages. It is also recommended to tag
+such packages with `node-addon-api` to provide more visibility to the community.
+
+Quick links to NPM searches: [keywords:node-addon-api](https://www.npmjs.com/search?q=keywords%3Anode-addon-api).
+
+<a name="other-bindings"></a>
+
+### **Other bindings**
+
+- **[napi-rs](https://napi.rs)** - (`Rust`)
+
+<a name="badges"></a>
+
+### **Badges**
+
+The use of badges is recommended to indicate the minimum version of Node-API
+required for the module. This helps to determine which Node.js major versions are
+supported. Addon maintainers can consult the [Node-API support matrix][] to determine
+which Node.js versions provide a given Node-API version. The following badges are
+available:
+
+![Node-API v1 Badge](https://github.com/nodejs/abi-stable-node/blob/doc/assets/Node-API%20v1%20Badge.svg)
+![Node-API v2 Badge](https://github.com/nodejs/abi-stable-node/blob/doc/assets/Node-API%20v2%20Badge.svg)
+![Node-API v3 Badge](https://github.com/nodejs/abi-stable-node/blob/doc/assets/Node-API%20v3%20Badge.svg)
+![Node-API v4 Badge](https://github.com/nodejs/abi-stable-node/blob/doc/assets/Node-API%20v4%20Badge.svg)
+![Node-API v5 Badge](https://github.com/nodejs/abi-stable-node/blob/doc/assets/Node-API%20v5%20Badge.svg)
+![Node-API v6 Badge](https://github.com/nodejs/abi-stable-node/blob/doc/assets/Node-API%20v6%20Badge.svg)
+![Node-API v7 Badge](https://github.com/nodejs/abi-stable-node/blob/doc/assets/Node-API%20v7%20Badge.svg)
+![Node-API v8 Badge](https://github.com/nodejs/abi-stable-node/blob/doc/assets/Node-API%20v8%20Badge.svg)
+![Node-API Experimental Version Badge](https://github.com/nodejs/abi-stable-node/blob/doc/assets/Node-API%20Experimental%20Version%20Badge.svg)
+
+## **Contributing**
+
+We love contributions from the community to **node-addon-api**!
+See [CONTRIBUTING.md](CONTRIBUTING.md) for more details on our philosophy around extending this module.
+
+<a name="contributors"></a>
+
+## Team members
+
+### Active
+| Name                | GitHub Link                                           |
+| ------------------- | ----------------------------------------------------- |
+| Anna Henningsen     | [addaleax](https://github.com/addaleax)               |
+| Chengzhong Wu       | [legendecas](https://github.com/legendecas)           |
+| Gabriel Schulhof    | [gabrielschulhof](https://github.com/gabrielschulhof) |
+| Jim Schlight        | [jschlight](https://github.com/jschlight)             |
+| Michael Dawson      | [mhdawson](https://github.com/mhdawson)               |
+| Kevin Eady          | [KevinEady](https://github.com/KevinEady)
+| Nicola Del Gobbo    | [NickNaso](https://github.com/NickNaso)               |
+
+### Emeritus
+| Name                | GitHub Link                                           |
+| ------------------- | ----------------------------------------------------- |
+| Arunesh Chandra     | [aruneshchandra](https://github.com/aruneshchandra)   |
+| Benjamin Byholm     | [kkoopa](https://github.com/kkoopa)                   |
+| Jason Ginchereau    | [jasongin](https://github.com/jasongin)               |
+| Hitesh Kanwathirtha | [digitalinfinity](https://github.com/digitalinfinity) |
+| Sampson Gao         | [sampsongao](https://github.com/sampsongao)           |
+| Taylor Woll         | [boingoing](https://github.com/boingoing)             |
+
+<a name="license"></a>
+
+Licensed under [MIT](./LICENSE.md)
+
+[ABI stability guide]: https://nodejs.org/en/docs/guides/abi-stability/
+[Node-API support matrix]: https://nodejs.org/dist/latest/docs/api/n-api.html#n_api_n_api_version_matrix
diff --git a/node_modules/node-addon-api/common.gypi b/node_modules/node-addon-api/common.gypi
new file mode 100644
index 0000000..9be254f
--- /dev/null
+++ b/node_modules/node-addon-api/common.gypi
@@ -0,0 +1,21 @@
+{
+  'variables': {
+    'NAPI_VERSION%': "<!(node -p \"process.versions.napi\")",
+    'disable_deprecated': "<!(node -p \"process.env['npm_config_disable_deprecated']\")"
+  },
+  'conditions': [
+    ['NAPI_VERSION!=""', { 'defines': ['NAPI_VERSION=<@(NAPI_VERSION)'] } ],
+    ['disable_deprecated=="true"', {
+      'defines': ['NODE_ADDON_API_DISABLE_DEPRECATED']
+    }],
+    ['OS=="mac"', {
+      'cflags+': ['-fvisibility=hidden'],
+      'xcode_settings': {
+        'OTHER_CFLAGS': ['-fvisibility=hidden']
+      }
+    }]
+  ],
+  'include_dirs': ["<!(node -p \"require('../').include_dir\")"],
+  'cflags': [ '-Werror', '-Wall', '-Wextra', '-Wpedantic', '-Wunused-parameter' ],
+  'cflags_cc': [ '-Werror', '-Wall', '-Wextra', '-Wpedantic', '-Wunused-parameter' ]
+}
diff --git a/node_modules/node-addon-api/except.gypi b/node_modules/node-addon-api/except.gypi
new file mode 100644
index 0000000..e2fb2c5
--- /dev/null
+++ b/node_modules/node-addon-api/except.gypi
@@ -0,0 +1,25 @@
+{
+  'defines': [ 'NAPI_CPP_EXCEPTIONS' ],
+  'cflags!': [ '-fno-exceptions' ],
+  'cflags_cc!': [ '-fno-exceptions' ],
+  'conditions': [
+    ["OS=='win'", {
+      "defines": [
+        "_HAS_EXCEPTIONS=1"
+      ],
+      "msvs_settings": {
+        "VCCLCompilerTool": {
+          "ExceptionHandling": 1,
+          'EnablePREfast': 'true',
+        },
+      },
+    }],
+    ["OS=='mac'", {
+      'xcode_settings': {
+        'GCC_ENABLE_CPP_EXCEPTIONS': 'YES',
+        'CLANG_CXX_LIBRARY': 'libc++',
+        'MACOSX_DEPLOYMENT_TARGET': '10.7',
+      },
+    }],
+  ],
+}
diff --git a/node_modules/node-addon-api/index.js b/node_modules/node-addon-api/index.js
new file mode 100644
index 0000000..2fa51c5
--- /dev/null
+++ b/node_modules/node-addon-api/index.js
@@ -0,0 +1,11 @@
+const path = require('path');
+
+const include_dir = path.relative('.', __dirname);
+
+module.exports = {
+  include: `"${__dirname}"`, // deprecated, can be removed as part of 4.0.0
+  include_dir,
+  gyp: path.join(include_dir, 'node_api.gyp:nothing'),
+  isNodeApiBuiltin: true,
+  needsFlag: false
+};
diff --git a/node_modules/node-addon-api/napi-inl.deprecated.h b/node_modules/node-addon-api/napi-inl.deprecated.h
new file mode 100644
index 0000000..51e954c
--- /dev/null
+++ b/node_modules/node-addon-api/napi-inl.deprecated.h
@@ -0,0 +1,192 @@
+#ifndef SRC_NAPI_INL_DEPRECATED_H_
+#define SRC_NAPI_INL_DEPRECATED_H_
+
+////////////////////////////////////////////////////////////////////////////////
+// PropertyDescriptor class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename Getter>
+inline PropertyDescriptor
+PropertyDescriptor::Accessor(const char* utf8name,
+                             Getter getter,
+                             napi_property_attributes attributes,
+                             void* /*data*/) {
+  using CbData = details::CallbackData<Getter, Napi::Value>;
+  // TODO: Delete when the function is destroyed
+  auto callbackData = new CbData({ getter, nullptr });
+
+  return PropertyDescriptor({
+    utf8name,
+    nullptr,
+    nullptr,
+    CbData::Wrapper,
+    nullptr,
+    nullptr,
+    attributes,
+    callbackData
+  });
+}
+
+template <typename Getter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(const std::string& utf8name,
+                                                       Getter getter,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  return Accessor(utf8name.c_str(), getter, attributes, data);
+}
+
+template <typename Getter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(napi_value name,
+                                                       Getter getter,
+                                                       napi_property_attributes attributes,
+                                                       void* /*data*/) {
+  using CbData = details::CallbackData<Getter, Napi::Value>;
+  // TODO: Delete when the function is destroyed
+  auto callbackData = new CbData({ getter, nullptr });
+
+  return PropertyDescriptor({
+    nullptr,
+    name,
+    nullptr,
+    CbData::Wrapper,
+    nullptr,
+    nullptr,
+    attributes,
+    callbackData
+  });
+}
+
+template <typename Getter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Name name,
+                                                       Getter getter,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  napi_value nameValue = name;
+  return PropertyDescriptor::Accessor(nameValue, getter, attributes, data);
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(const char* utf8name,
+                                                       Getter getter,
+                                                       Setter setter,
+                                                       napi_property_attributes attributes,
+                                                       void* /*data*/) {
+  using CbData = details::AccessorCallbackData<Getter, Setter>;
+  // TODO: Delete when the function is destroyed
+  auto callbackData = new CbData({ getter, setter, nullptr });
+
+  return PropertyDescriptor({
+    utf8name,
+    nullptr,
+    nullptr,
+    CbData::GetterWrapper,
+    CbData::SetterWrapper,
+    nullptr,
+    attributes,
+    callbackData
+  });
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(const std::string& utf8name,
+                                                       Getter getter,
+                                                       Setter setter,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  return Accessor(utf8name.c_str(), getter, setter, attributes, data);
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(napi_value name,
+                                                       Getter getter,
+                                                       Setter setter,
+                                                       napi_property_attributes attributes,
+                                                       void* /*data*/) {
+  using CbData = details::AccessorCallbackData<Getter, Setter>;
+  // TODO: Delete when the function is destroyed
+  auto callbackData = new CbData({ getter, setter, nullptr });
+
+  return PropertyDescriptor({
+    nullptr,
+    name,
+    nullptr,
+    CbData::GetterWrapper,
+    CbData::SetterWrapper,
+    nullptr,
+    attributes,
+    callbackData
+  });
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Name name,
+                                                       Getter getter,
+                                                       Setter setter,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  napi_value nameValue = name;
+  return PropertyDescriptor::Accessor(nameValue, getter, setter, attributes, data);
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(const char* utf8name,
+                                                       Callable cb,
+                                                       napi_property_attributes attributes,
+                                                       void* /*data*/) {
+  using ReturnType = decltype(cb(CallbackInfo(nullptr, nullptr)));
+  using CbData = details::CallbackData<Callable, ReturnType>;
+  // TODO: Delete when the function is destroyed
+  auto callbackData = new CbData({ cb, nullptr });
+
+  return PropertyDescriptor({
+    utf8name,
+    nullptr,
+    CbData::Wrapper,
+    nullptr,
+    nullptr,
+    nullptr,
+    attributes,
+    callbackData
+  });
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(const std::string& utf8name,
+                                                       Callable cb,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  return Function(utf8name.c_str(), cb, attributes, data);
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(napi_value name,
+                                                       Callable cb,
+                                                       napi_property_attributes attributes,
+                                                       void* /*data*/) {
+  using ReturnType = decltype(cb(CallbackInfo(nullptr, nullptr)));
+  using CbData = details::CallbackData<Callable, ReturnType>;
+  // TODO: Delete when the function is destroyed
+  auto callbackData = new CbData({ cb, nullptr });
+
+  return PropertyDescriptor({
+    nullptr,
+    name,
+    CbData::Wrapper,
+    nullptr,
+    nullptr,
+    nullptr,
+    attributes,
+    callbackData
+  });
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(Name name,
+                                                       Callable cb,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  napi_value nameValue = name;
+  return PropertyDescriptor::Function(nameValue, cb, attributes, data);
+}
+
+#endif // !SRC_NAPI_INL_DEPRECATED_H_
diff --git a/node_modules/node-addon-api/napi-inl.h b/node_modules/node-addon-api/napi-inl.h
new file mode 100644
index 0000000..bd54feb
--- /dev/null
+++ b/node_modules/node-addon-api/napi-inl.h
@@ -0,0 +1,6209 @@
+#ifndef SRC_NAPI_INL_H_
+#define SRC_NAPI_INL_H_
+
+////////////////////////////////////////////////////////////////////////////////
+// Node-API C++ Wrapper Classes
+//
+// Inline header-only implementations for "Node-API" ABI-stable C APIs for
+// Node.js.
+////////////////////////////////////////////////////////////////////////////////
+
+// Note: Do not include this file directly! Include "napi.h" instead.
+
+#include <algorithm>
+#include <cstring>
+#include <mutex>
+#include <type_traits>
+#include <utility>
+
+namespace Napi {
+
+// Helpers to handle functions exposed from C++.
+namespace details {
+
+// Attach a data item to an object and delete it when the object gets
+// garbage-collected.
+// TODO: Replace this code with `napi_add_finalizer()` whenever it becomes
+// available on all supported versions of Node.js.
+template <typename FreeType>
+static inline napi_status AttachData(napi_env env,
+                                     napi_value obj,
+                                     FreeType* data,
+                                     napi_finalize finalizer = nullptr,
+                                     void* hint = nullptr) {
+  napi_status status;
+  if (finalizer == nullptr) {
+    finalizer = [](napi_env /*env*/, void* data, void* /*hint*/) {
+      delete static_cast<FreeType*>(data);
+    };
+  }
+#if (NAPI_VERSION < 5)
+  napi_value symbol, external;
+  status = napi_create_symbol(env, nullptr, &symbol);
+  if (status == napi_ok) {
+    status = napi_create_external(env,
+                              data,
+                              finalizer,
+                              hint,
+                              &external);
+    if (status == napi_ok) {
+      napi_property_descriptor desc = {
+        nullptr,
+        symbol,
+        nullptr,
+        nullptr,
+        nullptr,
+        external,
+        napi_default,
+        nullptr
+      };
+      status = napi_define_properties(env, obj, 1, &desc);
+    }
+  }
+#else  // NAPI_VERSION >= 5
+  status = napi_add_finalizer(env, obj, data, finalizer, hint, nullptr);
+#endif
+  return status;
+}
+
+// For use in JS to C++ callback wrappers to catch any Napi::Error exceptions
+// and rethrow them as JavaScript exceptions before returning from the callback.
+template <typename Callable>
+inline napi_value WrapCallback(Callable callback) {
+#ifdef NAPI_CPP_EXCEPTIONS
+  try {
+    return callback();
+  } catch (const Error& e) {
+    e.ThrowAsJavaScriptException();
+    return nullptr;
+  }
+#else // NAPI_CPP_EXCEPTIONS
+  // When C++ exceptions are disabled, errors are immediately thrown as JS
+  // exceptions, so there is no need to catch and rethrow them here.
+  return callback();
+#endif // NAPI_CPP_EXCEPTIONS
+}
+
+// For use in JS to C++ void callback wrappers to catch any Napi::Error
+// exceptions and rethrow them as JavaScript exceptions before returning from the
+// callback.
+template <typename Callable>
+inline void WrapVoidCallback(Callable callback) {
+#ifdef NAPI_CPP_EXCEPTIONS
+  try {
+    callback();
+  } catch (const Error& e) {
+    e.ThrowAsJavaScriptException();
+  }
+#else // NAPI_CPP_EXCEPTIONS
+  // When C++ exceptions are disabled, errors are immediately thrown as JS
+  // exceptions, so there is no need to catch and rethrow them here.
+  callback();
+#endif // NAPI_CPP_EXCEPTIONS
+}
+
+template <typename Callable, typename Return>
+struct CallbackData {
+  static inline
+  napi_value Wrapper(napi_env env, napi_callback_info info) {
+    return details::WrapCallback([&] {
+      CallbackInfo callbackInfo(env, info);
+      CallbackData* callbackData =
+        static_cast<CallbackData*>(callbackInfo.Data());
+      callbackInfo.SetData(callbackData->data);
+      return callbackData->callback(callbackInfo);
+    });
+  }
+
+  Callable callback;
+  void* data;
+};
+
+template <typename Callable>
+struct CallbackData<Callable, void> {
+  static inline
+  napi_value Wrapper(napi_env env, napi_callback_info info) {
+    return details::WrapCallback([&] {
+      CallbackInfo callbackInfo(env, info);
+      CallbackData* callbackData =
+        static_cast<CallbackData*>(callbackInfo.Data());
+      callbackInfo.SetData(callbackData->data);
+      callbackData->callback(callbackInfo);
+      return nullptr;
+    });
+  }
+
+  Callable callback;
+  void* data;
+};
+
+template <void (*Callback)(const CallbackInfo& info)>
+static napi_value
+TemplatedVoidCallback(napi_env env, napi_callback_info info) NAPI_NOEXCEPT {
+  return details::WrapCallback([&] {
+    CallbackInfo cbInfo(env, info);
+    Callback(cbInfo);
+    return nullptr;
+  });
+}
+
+template <Napi::Value (*Callback)(const CallbackInfo& info)>
+static napi_value
+TemplatedCallback(napi_env env, napi_callback_info info) NAPI_NOEXCEPT {
+  return details::WrapCallback([&] {
+    CallbackInfo cbInfo(env, info);
+    return Callback(cbInfo);
+  });
+}
+
+template <typename T,
+          Napi::Value (T::*UnwrapCallback)(const CallbackInfo& info)>
+static napi_value
+TemplatedInstanceCallback(napi_env env, napi_callback_info info) NAPI_NOEXCEPT {
+  return details::WrapCallback([&] {
+    CallbackInfo cbInfo(env, info);
+    T* instance = T::Unwrap(cbInfo.This().As<Object>());
+    return (instance->*UnwrapCallback)(cbInfo);
+  });
+}
+
+template <typename T, void (T::*UnwrapCallback)(const CallbackInfo& info)>
+static napi_value
+TemplatedInstanceVoidCallback(napi_env env,
+                              napi_callback_info info) NAPI_NOEXCEPT {
+  return details::WrapCallback([&] {
+    CallbackInfo cbInfo(env, info);
+    T* instance = T::Unwrap(cbInfo.This().As<Object>());
+    (instance->*UnwrapCallback)(cbInfo);
+    return nullptr;
+  });
+}
+
+template <typename T, typename Finalizer, typename Hint = void>
+struct FinalizeData {
+  static inline void Wrapper(napi_env env,
+                             void* data,
+                             void* finalizeHint) NAPI_NOEXCEPT {
+    WrapVoidCallback([&] {
+      FinalizeData* finalizeData = static_cast<FinalizeData*>(finalizeHint);
+      finalizeData->callback(Env(env), static_cast<T*>(data));
+      delete finalizeData;
+    });
+  }
+
+  static inline void WrapperWithHint(napi_env env,
+                                     void* data,
+                                     void* finalizeHint) NAPI_NOEXCEPT {
+    WrapVoidCallback([&] {
+      FinalizeData* finalizeData = static_cast<FinalizeData*>(finalizeHint);
+      finalizeData->callback(Env(env), static_cast<T*>(data), finalizeData->hint);
+      delete finalizeData;
+    });
+  }
+
+  Finalizer callback;
+  Hint* hint;
+};
+
+#if (NAPI_VERSION > 3 && !defined(__wasm32__))
+template <typename ContextType=void,
+          typename Finalizer=std::function<void(Env, void*, ContextType*)>,
+          typename FinalizerDataType=void>
+struct ThreadSafeFinalize {
+  static inline
+  void Wrapper(napi_env env, void* rawFinalizeData, void* /* rawContext */) {
+    if (rawFinalizeData == nullptr)
+      return;
+
+    ThreadSafeFinalize* finalizeData =
+        static_cast<ThreadSafeFinalize*>(rawFinalizeData);
+    finalizeData->callback(Env(env));
+    delete finalizeData;
+  }
+
+  static inline
+  void FinalizeWrapperWithData(napi_env env,
+                               void* rawFinalizeData,
+                               void* /* rawContext */) {
+    if (rawFinalizeData == nullptr)
+      return;
+
+    ThreadSafeFinalize* finalizeData =
+        static_cast<ThreadSafeFinalize*>(rawFinalizeData);
+    finalizeData->callback(Env(env), finalizeData->data);
+    delete finalizeData;
+  }
+
+  static inline
+  void FinalizeWrapperWithContext(napi_env env,
+                                  void* rawFinalizeData,
+                                  void* rawContext) {
+    if (rawFinalizeData == nullptr)
+      return;
+
+    ThreadSafeFinalize* finalizeData =
+        static_cast<ThreadSafeFinalize*>(rawFinalizeData);
+    finalizeData->callback(Env(env), static_cast<ContextType*>(rawContext));
+    delete finalizeData;
+  }
+
+  static inline
+  void FinalizeFinalizeWrapperWithDataAndContext(napi_env env,
+                                         void* rawFinalizeData,
+                                         void* rawContext) {
+    if (rawFinalizeData == nullptr)
+      return;
+
+    ThreadSafeFinalize* finalizeData =
+        static_cast<ThreadSafeFinalize*>(rawFinalizeData);
+    finalizeData->callback(Env(env), finalizeData->data,
+        static_cast<ContextType*>(rawContext));
+    delete finalizeData;
+  }
+
+  FinalizerDataType* data;
+  Finalizer callback;
+};
+
+template <typename ContextType, typename DataType, typename CallJs, CallJs call>
+typename std::enable_if<call != nullptr>::type static inline CallJsWrapper(
+    napi_env env, napi_value jsCallback, void* context, void* data) {
+  call(env,
+       Function(env, jsCallback),
+       static_cast<ContextType*>(context),
+       static_cast<DataType*>(data));
+}
+
+template <typename ContextType, typename DataType, typename CallJs, CallJs call>
+typename std::enable_if<call == nullptr>::type static inline CallJsWrapper(
+    napi_env env, napi_value jsCallback, void* /*context*/, void* /*data*/) {
+  if (jsCallback != nullptr) {
+    Function(env, jsCallback).Call(0, nullptr);
+  }
+}
+
+#if NAPI_VERSION > 4
+
+template <typename CallbackType, typename TSFN>
+napi_value DefaultCallbackWrapper(napi_env /*env*/, std::nullptr_t /*cb*/) {
+  return nullptr;
+}
+
+template <typename CallbackType, typename TSFN>
+napi_value DefaultCallbackWrapper(napi_env /*env*/, Napi::Function cb) {
+  return cb;
+}
+
+#else
+template <typename CallbackType, typename TSFN>
+napi_value DefaultCallbackWrapper(napi_env env, Napi::Function cb) {
+  if (cb.IsEmpty()) {
+    return TSFN::EmptyFunctionFactory(env);
+  }
+  return cb;
+}
+#endif  // NAPI_VERSION > 4
+#endif  // NAPI_VERSION > 3 && !defined(__wasm32__)
+
+template <typename Getter, typename Setter>
+struct AccessorCallbackData {
+  static inline
+  napi_value GetterWrapper(napi_env env, napi_callback_info info) {
+    return details::WrapCallback([&] {
+      CallbackInfo callbackInfo(env, info);
+      AccessorCallbackData* callbackData =
+        static_cast<AccessorCallbackData*>(callbackInfo.Data());
+      callbackInfo.SetData(callbackData->data);
+      return callbackData->getterCallback(callbackInfo);
+    });
+  }
+
+  static inline
+  napi_value SetterWrapper(napi_env env, napi_callback_info info) {
+    return details::WrapCallback([&] {
+      CallbackInfo callbackInfo(env, info);
+      AccessorCallbackData* callbackData =
+        static_cast<AccessorCallbackData*>(callbackInfo.Data());
+      callbackInfo.SetData(callbackData->data);
+      callbackData->setterCallback(callbackInfo);
+      return nullptr;
+    });
+  }
+
+  Getter getterCallback;
+  Setter setterCallback;
+  void* data;
+};
+
+}  // namespace details
+
+#ifndef NODE_ADDON_API_DISABLE_DEPRECATED
+# include "napi-inl.deprecated.h"
+#endif // !NODE_ADDON_API_DISABLE_DEPRECATED
+
+////////////////////////////////////////////////////////////////////////////////
+// Module registration
+////////////////////////////////////////////////////////////////////////////////
+
+// Register an add-on based on an initializer function.
+#define NODE_API_MODULE(modname, regfunc)                                      \
+  static napi_value __napi_##regfunc(napi_env env, napi_value exports) {       \
+    return Napi::RegisterModule(env, exports, regfunc);                        \
+  }                                                                            \
+  NAPI_MODULE(modname, __napi_##regfunc)
+
+// Register an add-on based on a subclass of `Addon<T>` with a custom Node.js
+// module name.
+#define NODE_API_NAMED_ADDON(modname, classname)                 \
+  static napi_value __napi_ ## classname(napi_env env,           \
+                                         napi_value exports) {   \
+    return Napi::RegisterModule(env, exports, &classname::Init); \
+  }                                                              \
+  NAPI_MODULE(modname, __napi_ ## classname)
+
+// Register an add-on based on a subclass of `Addon<T>` with the Node.js module
+// name given by node-gyp from the `target_name` in binding.gyp.
+#define NODE_API_ADDON(classname) \
+  NODE_API_NAMED_ADDON(NODE_GYP_MODULE_NAME, classname)
+
+// Adapt the NAPI_MODULE registration function:
+//  - Wrap the arguments in NAPI wrappers.
+//  - Catch any NAPI errors and rethrow as JS exceptions.
+inline napi_value RegisterModule(napi_env env,
+                                 napi_value exports,
+                                 ModuleRegisterCallback registerCallback) {
+  return details::WrapCallback([&] {
+    return napi_value(registerCallback(Napi::Env(env),
+                                       Napi::Object(env, exports)));
+  });
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Maybe class
+////////////////////////////////////////////////////////////////////////////////
+
+template <class T>
+bool Maybe<T>::IsNothing() const {
+  return !_has_value;
+}
+
+template <class T>
+bool Maybe<T>::IsJust() const {
+  return _has_value;
+}
+
+template <class T>
+void Maybe<T>::Check() const {
+  NAPI_CHECK(IsJust(), "Napi::Maybe::Check", "Maybe value is Nothing.");
+}
+
+template <class T>
+T Maybe<T>::Unwrap() const {
+  NAPI_CHECK(IsJust(), "Napi::Maybe::Unwrap", "Maybe value is Nothing.");
+  return _value;
+}
+
+template <class T>
+T Maybe<T>::UnwrapOr(const T& default_value) const {
+  return _has_value ? _value : default_value;
+}
+
+template <class T>
+bool Maybe<T>::UnwrapTo(T* out) const {
+  if (IsJust()) {
+    *out = _value;
+    return true;
+  };
+  return false;
+}
+
+template <class T>
+bool Maybe<T>::operator==(const Maybe& other) const {
+  return (IsJust() == other.IsJust()) &&
+         (!IsJust() || Unwrap() == other.Unwrap());
+}
+
+template <class T>
+bool Maybe<T>::operator!=(const Maybe& other) const {
+  return !operator==(other);
+}
+
+template <class T>
+Maybe<T>::Maybe() : _has_value(false) {}
+
+template <class T>
+Maybe<T>::Maybe(const T& t) : _has_value(true), _value(t) {}
+
+template <class T>
+inline Maybe<T> Nothing() {
+  return Maybe<T>();
+}
+
+template <class T>
+inline Maybe<T> Just(const T& t) {
+  return Maybe<T>(t);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Env class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Env::Env(napi_env env) : _env(env) {
+}
+
+inline Env::operator napi_env() const {
+  return _env;
+}
+
+inline Object Env::Global() const {
+  napi_value value;
+  napi_status status = napi_get_global(*this, &value);
+  NAPI_THROW_IF_FAILED(*this, status, Object());
+  return Object(*this, value);
+}
+
+inline Value Env::Undefined() const {
+  napi_value value;
+  napi_status status = napi_get_undefined(*this, &value);
+  NAPI_THROW_IF_FAILED(*this, status, Value());
+  return Value(*this, value);
+}
+
+inline Value Env::Null() const {
+  napi_value value;
+  napi_status status = napi_get_null(*this, &value);
+  NAPI_THROW_IF_FAILED(*this, status, Value());
+  return Value(*this, value);
+}
+
+inline bool Env::IsExceptionPending() const {
+  bool result;
+  napi_status status = napi_is_exception_pending(_env, &result);
+  if (status != napi_ok) result = false; // Checking for a pending exception shouldn't throw.
+  return result;
+}
+
+inline Error Env::GetAndClearPendingException() {
+  napi_value value;
+  napi_status status = napi_get_and_clear_last_exception(_env, &value);
+  if (status != napi_ok) {
+    // Don't throw another exception when failing to get the exception!
+    return Error();
+  }
+  return Error(_env, value);
+}
+
+inline MaybeOrValue<Value> Env::RunScript(const char* utf8script) {
+  String script = String::New(_env, utf8script);
+  return RunScript(script);
+}
+
+inline MaybeOrValue<Value> Env::RunScript(const std::string& utf8script) {
+  return RunScript(utf8script.c_str());
+}
+
+inline MaybeOrValue<Value> Env::RunScript(String script) {
+  napi_value result;
+  napi_status status = napi_run_script(_env, script, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(
+      _env, status, Napi::Value(_env, result), Napi::Value);
+}
+
+#if NAPI_VERSION > 2
+template <typename Hook, typename Arg>
+void Env::CleanupHook<Hook, Arg>::Wrapper(void* data) NAPI_NOEXCEPT {
+  auto* cleanupData =
+      static_cast<typename Napi::Env::CleanupHook<Hook, Arg>::CleanupData*>(
+          data);
+  cleanupData->hook();
+  delete cleanupData;
+}
+
+template <typename Hook, typename Arg>
+void Env::CleanupHook<Hook, Arg>::WrapperWithArg(void* data) NAPI_NOEXCEPT {
+  auto* cleanupData =
+      static_cast<typename Napi::Env::CleanupHook<Hook, Arg>::CleanupData*>(
+          data);
+  cleanupData->hook(static_cast<Arg*>(cleanupData->arg));
+  delete cleanupData;
+}
+#endif  // NAPI_VERSION > 2
+
+#if NAPI_VERSION > 5
+template <typename T, Env::Finalizer<T> fini>
+inline void Env::SetInstanceData(T* data) {
+  napi_status status =
+    napi_set_instance_data(_env, data, [](napi_env env, void* data, void*) {
+      fini(env, static_cast<T*>(data));
+    }, nullptr);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+template <typename DataType,
+          typename HintType,
+          Napi::Env::FinalizerWithHint<DataType, HintType> fini>
+inline void Env::SetInstanceData(DataType* data, HintType* hint) {
+  napi_status status =
+    napi_set_instance_data(_env, data,
+      [](napi_env env, void* data, void* hint) {
+        fini(env, static_cast<DataType*>(data), static_cast<HintType*>(hint));
+      }, hint);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+template <typename T>
+inline T* Env::GetInstanceData() {
+  void* data = nullptr;
+
+  napi_status status = napi_get_instance_data(_env, &data);
+  NAPI_THROW_IF_FAILED(_env, status, nullptr);
+
+  return static_cast<T*>(data);
+}
+
+template <typename T> void Env::DefaultFini(Env, T* data) {
+  delete data;
+}
+
+template <typename DataType, typename HintType>
+void Env::DefaultFiniWithHint(Env, DataType* data, HintType*) {
+  delete data;
+}
+#endif  // NAPI_VERSION > 5
+
+////////////////////////////////////////////////////////////////////////////////
+// Value class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Value::Value() : _env(nullptr), _value(nullptr) {
+}
+
+inline Value::Value(napi_env env, napi_value value) : _env(env), _value(value) {
+}
+
+inline Value::operator napi_value() const {
+  return _value;
+}
+
+inline bool Value::operator ==(const Value& other) const {
+  return StrictEquals(other);
+}
+
+inline bool Value::operator !=(const Value& other) const {
+  return !this->operator ==(other);
+}
+
+inline bool Value::StrictEquals(const Value& other) const {
+  bool result;
+  napi_status status = napi_strict_equals(_env, *this, other, &result);
+  NAPI_THROW_IF_FAILED(_env, status, false);
+  return result;
+}
+
+inline Napi::Env Value::Env() const {
+  return Napi::Env(_env);
+}
+
+inline bool Value::IsEmpty() const {
+  return _value == nullptr;
+}
+
+inline napi_valuetype Value::Type() const {
+  if (IsEmpty()) {
+    return napi_undefined;
+  }
+
+  napi_valuetype type;
+  napi_status status = napi_typeof(_env, _value, &type);
+  NAPI_THROW_IF_FAILED(_env, status, napi_undefined);
+  return type;
+}
+
+inline bool Value::IsUndefined() const {
+  return Type() == napi_undefined;
+}
+
+inline bool Value::IsNull() const {
+  return Type() == napi_null;
+}
+
+inline bool Value::IsBoolean() const {
+  return Type() == napi_boolean;
+}
+
+inline bool Value::IsNumber() const {
+  return Type() == napi_number;
+}
+
+#if NAPI_VERSION > 5
+inline bool Value::IsBigInt() const {
+  return Type() == napi_bigint;
+}
+#endif  // NAPI_VERSION > 5
+
+#if (NAPI_VERSION > 4)
+inline bool Value::IsDate() const {
+  if (IsEmpty()) {
+    return false;
+  }
+
+  bool result;
+  napi_status status = napi_is_date(_env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, false);
+  return result;
+}
+#endif
+
+inline bool Value::IsString() const {
+  return Type() == napi_string;
+}
+
+inline bool Value::IsSymbol() const {
+  return Type() == napi_symbol;
+}
+
+inline bool Value::IsArray() const {
+  if (IsEmpty()) {
+    return false;
+  }
+
+  bool result;
+  napi_status status = napi_is_array(_env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, false);
+  return result;
+}
+
+inline bool Value::IsArrayBuffer() const {
+  if (IsEmpty()) {
+    return false;
+  }
+
+  bool result;
+  napi_status status = napi_is_arraybuffer(_env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, false);
+  return result;
+}
+
+inline bool Value::IsTypedArray() const {
+  if (IsEmpty()) {
+    return false;
+  }
+
+  bool result;
+  napi_status status = napi_is_typedarray(_env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, false);
+  return result;
+}
+
+inline bool Value::IsObject() const {
+  return Type() == napi_object || IsFunction();
+}
+
+inline bool Value::IsFunction() const {
+  return Type() == napi_function;
+}
+
+inline bool Value::IsPromise() const {
+  if (IsEmpty()) {
+    return false;
+  }
+
+  bool result;
+  napi_status status = napi_is_promise(_env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, false);
+  return result;
+}
+
+inline bool Value::IsDataView() const {
+  if (IsEmpty()) {
+    return false;
+  }
+
+  bool result;
+  napi_status status = napi_is_dataview(_env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, false);
+  return result;
+}
+
+inline bool Value::IsBuffer() const {
+  if (IsEmpty()) {
+    return false;
+  }
+
+  bool result;
+  napi_status status = napi_is_buffer(_env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, false);
+  return result;
+}
+
+inline bool Value::IsExternal() const {
+  return Type() == napi_external;
+}
+
+template <typename T>
+inline T Value::As() const {
+  return T(_env, _value);
+}
+
+inline MaybeOrValue<Boolean> Value::ToBoolean() const {
+  napi_value result;
+  napi_status status = napi_coerce_to_bool(_env, _value, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(
+      _env, status, Napi::Boolean(_env, result), Napi::Boolean);
+}
+
+inline MaybeOrValue<Number> Value::ToNumber() const {
+  napi_value result;
+  napi_status status = napi_coerce_to_number(_env, _value, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(
+      _env, status, Napi::Number(_env, result), Napi::Number);
+}
+
+inline MaybeOrValue<String> Value::ToString() const {
+  napi_value result;
+  napi_status status = napi_coerce_to_string(_env, _value, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(
+      _env, status, Napi::String(_env, result), Napi::String);
+}
+
+inline MaybeOrValue<Object> Value::ToObject() const {
+  napi_value result;
+  napi_status status = napi_coerce_to_object(_env, _value, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(
+      _env, status, Napi::Object(_env, result), Napi::Object);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Boolean class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Boolean Boolean::New(napi_env env, bool val) {
+  napi_value value;
+  napi_status status = napi_get_boolean(env, val, &value);
+  NAPI_THROW_IF_FAILED(env, status, Boolean());
+  return Boolean(env, value);
+}
+
+inline Boolean::Boolean() : Napi::Value() {
+}
+
+inline Boolean::Boolean(napi_env env, napi_value value) : Napi::Value(env, value) {
+}
+
+inline Boolean::operator bool() const {
+  return Value();
+}
+
+inline bool Boolean::Value() const {
+  bool result;
+  napi_status status = napi_get_value_bool(_env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, false);
+  return result;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Number class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Number Number::New(napi_env env, double val) {
+  napi_value value;
+  napi_status status = napi_create_double(env, val, &value);
+  NAPI_THROW_IF_FAILED(env, status, Number());
+  return Number(env, value);
+}
+
+inline Number::Number() : Value() {
+}
+
+inline Number::Number(napi_env env, napi_value value) : Value(env, value) {
+}
+
+inline Number::operator int32_t() const {
+  return Int32Value();
+}
+
+inline Number::operator uint32_t() const {
+  return Uint32Value();
+}
+
+inline Number::operator int64_t() const {
+  return Int64Value();
+}
+
+inline Number::operator float() const {
+  return FloatValue();
+}
+
+inline Number::operator double() const {
+  return DoubleValue();
+}
+
+inline int32_t Number::Int32Value() const {
+  int32_t result;
+  napi_status status = napi_get_value_int32(_env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return result;
+}
+
+inline uint32_t Number::Uint32Value() const {
+  uint32_t result;
+  napi_status status = napi_get_value_uint32(_env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return result;
+}
+
+inline int64_t Number::Int64Value() const {
+  int64_t result;
+  napi_status status = napi_get_value_int64(_env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return result;
+}
+
+inline float Number::FloatValue() const {
+  return static_cast<float>(DoubleValue());
+}
+
+inline double Number::DoubleValue() const {
+  double result;
+  napi_status status = napi_get_value_double(_env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return result;
+}
+
+#if NAPI_VERSION > 5
+////////////////////////////////////////////////////////////////////////////////
+// BigInt Class
+////////////////////////////////////////////////////////////////////////////////
+
+inline BigInt BigInt::New(napi_env env, int64_t val) {
+  napi_value value;
+  napi_status status = napi_create_bigint_int64(env, val, &value);
+  NAPI_THROW_IF_FAILED(env, status, BigInt());
+  return BigInt(env, value);
+}
+
+inline BigInt BigInt::New(napi_env env, uint64_t val) {
+  napi_value value;
+  napi_status status = napi_create_bigint_uint64(env, val, &value);
+  NAPI_THROW_IF_FAILED(env, status, BigInt());
+  return BigInt(env, value);
+}
+
+inline BigInt BigInt::New(napi_env env, int sign_bit, size_t word_count, const uint64_t* words) {
+  napi_value value;
+  napi_status status = napi_create_bigint_words(env, sign_bit, word_count, words, &value);
+  NAPI_THROW_IF_FAILED(env, status, BigInt());
+  return BigInt(env, value);
+}
+
+inline BigInt::BigInt() : Value() {
+}
+
+inline BigInt::BigInt(napi_env env, napi_value value) : Value(env, value) {
+}
+
+inline int64_t BigInt::Int64Value(bool* lossless) const {
+  int64_t result;
+  napi_status status = napi_get_value_bigint_int64(
+      _env, _value, &result, lossless);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return result;
+}
+
+inline uint64_t BigInt::Uint64Value(bool* lossless) const {
+  uint64_t result;
+  napi_status status = napi_get_value_bigint_uint64(
+      _env, _value, &result, lossless);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return result;
+}
+
+inline size_t BigInt::WordCount() const {
+  size_t word_count;
+  napi_status status = napi_get_value_bigint_words(
+      _env, _value, nullptr, &word_count, nullptr);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return word_count;
+}
+
+inline void BigInt::ToWords(int* sign_bit, size_t* word_count, uint64_t* words) {
+  napi_status status = napi_get_value_bigint_words(
+      _env, _value, sign_bit, word_count, words);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+#endif  // NAPI_VERSION > 5
+
+#if (NAPI_VERSION > 4)
+////////////////////////////////////////////////////////////////////////////////
+// Date Class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Date Date::New(napi_env env, double val) {
+  napi_value value;
+  napi_status status = napi_create_date(env, val, &value);
+  NAPI_THROW_IF_FAILED(env, status, Date());
+  return Date(env, value);
+}
+
+inline Date::Date() : Value() {
+}
+
+inline Date::Date(napi_env env, napi_value value) : Value(env, value) {
+}
+
+inline Date::operator double() const {
+  return ValueOf();
+}
+
+inline double Date::ValueOf() const {
+  double result;
+  napi_status status = napi_get_date_value(
+      _env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return result;
+}
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+// Name class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Name::Name() : Value() {
+}
+
+inline Name::Name(napi_env env, napi_value value) : Value(env, value) {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// String class
+////////////////////////////////////////////////////////////////////////////////
+
+inline String String::New(napi_env env, const std::string& val) {
+  return String::New(env, val.c_str(), val.size());
+}
+
+inline String String::New(napi_env env, const std::u16string& val) {
+  return String::New(env, val.c_str(), val.size());
+}
+
+inline String String::New(napi_env env, const char* val) {
+  // TODO(@gabrielschulhof) Remove if-statement when core's error handling is
+  // available in all supported versions.
+  if (val == nullptr) {
+    // Throw an error that looks like it came from core.
+    NAPI_THROW_IF_FAILED(env, napi_invalid_arg, String());
+  }
+  napi_value value;
+  napi_status status = napi_create_string_utf8(env, val, std::strlen(val), &value);
+  NAPI_THROW_IF_FAILED(env, status, String());
+  return String(env, value);
+}
+
+inline String String::New(napi_env env, const char16_t* val) {
+  napi_value value;
+  // TODO(@gabrielschulhof) Remove if-statement when core's error handling is
+  // available in all supported versions.
+  if (val == nullptr) {
+    // Throw an error that looks like it came from core.
+    NAPI_THROW_IF_FAILED(env, napi_invalid_arg, String());
+  }
+  napi_status status = napi_create_string_utf16(env, val, std::u16string(val).size(), &value);
+  NAPI_THROW_IF_FAILED(env, status, String());
+  return String(env, value);
+}
+
+inline String String::New(napi_env env, const char* val, size_t length) {
+  napi_value value;
+  napi_status status = napi_create_string_utf8(env, val, length, &value);
+  NAPI_THROW_IF_FAILED(env, status, String());
+  return String(env, value);
+}
+
+inline String String::New(napi_env env, const char16_t* val, size_t length) {
+  napi_value value;
+  napi_status status = napi_create_string_utf16(env, val, length, &value);
+  NAPI_THROW_IF_FAILED(env, status, String());
+  return String(env, value);
+}
+
+inline String::String() : Name() {
+}
+
+inline String::String(napi_env env, napi_value value) : Name(env, value) {
+}
+
+inline String::operator std::string() const {
+  return Utf8Value();
+}
+
+inline String::operator std::u16string() const {
+  return Utf16Value();
+}
+
+inline std::string String::Utf8Value() const {
+  size_t length;
+  napi_status status = napi_get_value_string_utf8(_env, _value, nullptr, 0, &length);
+  NAPI_THROW_IF_FAILED(_env, status, "");
+
+  std::string value;
+  value.reserve(length + 1);
+  value.resize(length);
+  status = napi_get_value_string_utf8(_env, _value, &value[0], value.capacity(), nullptr);
+  NAPI_THROW_IF_FAILED(_env, status, "");
+  return value;
+}
+
+inline std::u16string String::Utf16Value() const {
+  size_t length;
+  napi_status status = napi_get_value_string_utf16(_env, _value, nullptr, 0, &length);
+  NAPI_THROW_IF_FAILED(_env, status, NAPI_WIDE_TEXT(""));
+
+  std::u16string value;
+  value.reserve(length + 1);
+  value.resize(length);
+  status = napi_get_value_string_utf16(_env, _value, &value[0], value.capacity(), nullptr);
+  NAPI_THROW_IF_FAILED(_env, status, NAPI_WIDE_TEXT(""));
+  return value;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Symbol class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Symbol Symbol::New(napi_env env, const char* description) {
+  napi_value descriptionValue = description != nullptr ?
+    String::New(env, description) : static_cast<napi_value>(nullptr);
+  return Symbol::New(env, descriptionValue);
+}
+
+inline Symbol Symbol::New(napi_env env, const std::string& description) {
+  napi_value descriptionValue = String::New(env, description);
+  return Symbol::New(env, descriptionValue);
+}
+
+inline Symbol Symbol::New(napi_env env, String description) {
+  napi_value descriptionValue = description;
+  return Symbol::New(env, descriptionValue);
+}
+
+inline Symbol Symbol::New(napi_env env, napi_value description) {
+  napi_value value;
+  napi_status status = napi_create_symbol(env, description, &value);
+  NAPI_THROW_IF_FAILED(env, status, Symbol());
+  return Symbol(env, value);
+}
+
+inline MaybeOrValue<Symbol> Symbol::WellKnown(napi_env env,
+                                              const std::string& name) {
+#if defined(NODE_ADDON_API_ENABLE_MAYBE)
+  Value symbol_obj;
+  Value symbol_value;
+  if (Napi::Env(env).Global().Get("Symbol").UnwrapTo(&symbol_obj) &&
+      symbol_obj.As<Object>().Get(name).UnwrapTo(&symbol_value)) {
+    return Just<Symbol>(symbol_value.As<Symbol>());
+  }
+  return Nothing<Symbol>();
+#else
+  return Napi::Env(env).Global().Get("Symbol").As<Object>().Get(name).As<Symbol>();
+#endif
+}
+
+inline MaybeOrValue<Symbol> Symbol::For(napi_env env,
+                                        const std::string& description) {
+  napi_value descriptionValue = String::New(env, description);
+  return Symbol::For(env, descriptionValue);
+}
+
+inline MaybeOrValue<Symbol> Symbol::For(napi_env env, const char* description) {
+  napi_value descriptionValue = String::New(env, description);
+  return Symbol::For(env, descriptionValue);
+}
+
+inline MaybeOrValue<Symbol> Symbol::For(napi_env env, String description) {
+  return Symbol::For(env, static_cast<napi_value>(description));
+}
+
+inline MaybeOrValue<Symbol> Symbol::For(napi_env env, napi_value description) {
+#if defined(NODE_ADDON_API_ENABLE_MAYBE)
+  Value symbol_obj;
+  Value symbol_for_value;
+  Value symbol_value;
+  if (Napi::Env(env).Global().Get("Symbol").UnwrapTo(&symbol_obj) &&
+      symbol_obj.As<Object>().Get("for").UnwrapTo(&symbol_for_value) &&
+      symbol_for_value.As<Function>()
+          .Call(symbol_obj, {description})
+          .UnwrapTo(&symbol_value)) {
+    return Just<Symbol>(symbol_value.As<Symbol>());
+  }
+  return Nothing<Symbol>();
+#else
+  Object symbol_obj = Napi::Env(env).Global().Get("Symbol").As<Object>();
+  return symbol_obj.Get("for")
+      .As<Function>()
+      .Call(symbol_obj, {description})
+      .As<Symbol>();
+#endif
+}
+
+inline Symbol::Symbol() : Name() {
+}
+
+inline Symbol::Symbol(napi_env env, napi_value value) : Name(env, value) {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Automagic value creation
+////////////////////////////////////////////////////////////////////////////////
+
+namespace details {
+template <typename T>
+struct vf_number {
+  static Number From(napi_env env, T value) {
+    return Number::New(env, static_cast<double>(value));
+  }
+};
+
+template<>
+struct vf_number<bool> {
+  static Boolean From(napi_env env, bool value) {
+    return Boolean::New(env, value);
+  }
+};
+
+struct vf_utf8_charp {
+  static String From(napi_env env, const char* value) {
+    return String::New(env, value);
+  }
+};
+
+struct vf_utf16_charp {
+  static String From(napi_env env, const char16_t* value) {
+    return String::New(env, value);
+  }
+};
+struct vf_utf8_string {
+  static String From(napi_env env, const std::string& value) {
+    return String::New(env, value);
+  }
+};
+
+struct vf_utf16_string {
+  static String From(napi_env env, const std::u16string& value) {
+    return String::New(env, value);
+  }
+};
+
+template <typename T>
+struct vf_fallback {
+  static Value From(napi_env env, const T& value) {
+    return Value(env, value);
+  }
+};
+
+template <typename...> struct disjunction : std::false_type {};
+template <typename B> struct disjunction<B> : B {};
+template <typename B, typename... Bs>
+struct disjunction<B, Bs...>
+    : std::conditional<bool(B::value), B, disjunction<Bs...>>::type {};
+
+template <typename T>
+struct can_make_string
+    : disjunction<typename std::is_convertible<T, const char *>::type,
+                  typename std::is_convertible<T, const char16_t *>::type,
+                  typename std::is_convertible<T, std::string>::type,
+                  typename std::is_convertible<T, std::u16string>::type> {};
+}
+
+template <typename T>
+Value Value::From(napi_env env, const T& value) {
+  using Helper = typename std::conditional<
+    std::is_integral<T>::value || std::is_floating_point<T>::value,
+    details::vf_number<T>,
+    typename std::conditional<
+      details::can_make_string<T>::value,
+      String,
+      details::vf_fallback<T>
+    >::type
+  >::type;
+  return Helper::From(env, value);
+}
+
+template <typename T>
+String String::From(napi_env env, const T& value) {
+  struct Dummy {};
+  using Helper = typename std::conditional<
+    std::is_convertible<T, const char*>::value,
+    details::vf_utf8_charp,
+    typename std::conditional<
+      std::is_convertible<T, const char16_t*>::value,
+      details::vf_utf16_charp,
+      typename std::conditional<
+        std::is_convertible<T, std::string>::value,
+        details::vf_utf8_string,
+        typename std::conditional<
+          std::is_convertible<T, std::u16string>::value,
+          details::vf_utf16_string,
+          Dummy
+        >::type
+      >::type
+    >::type
+  >::type;
+  return Helper::From(env, value);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Object class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename Key>
+inline Object::PropertyLValue<Key>::operator Value() const {
+  MaybeOrValue<Value> val = Object(_env, _object).Get(_key);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  return val.Unwrap();
+#else
+  return val;
+#endif
+}
+
+template <typename Key> template <typename ValueType>
+inline Object::PropertyLValue<Key>& Object::PropertyLValue<Key>::operator =(ValueType value) {
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  MaybeOrValue<bool> result =
+#endif
+      Object(_env, _object).Set(_key, value);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  result.Unwrap();
+#endif
+  return *this;
+}
+
+template <typename Key>
+inline Object::PropertyLValue<Key>::PropertyLValue(Object object, Key key)
+  : _env(object.Env()), _object(object), _key(key) {}
+
+inline Object Object::New(napi_env env) {
+  napi_value value;
+  napi_status status = napi_create_object(env, &value);
+  NAPI_THROW_IF_FAILED(env, status, Object());
+  return Object(env, value);
+}
+
+inline Object::Object() : Value() {
+}
+
+inline Object::Object(napi_env env, napi_value value) : Value(env, value) {
+}
+
+inline Object::PropertyLValue<std::string> Object::operator [](const char* utf8name) {
+  return PropertyLValue<std::string>(*this, utf8name);
+}
+
+inline Object::PropertyLValue<std::string> Object::operator [](const std::string& utf8name) {
+  return PropertyLValue<std::string>(*this, utf8name);
+}
+
+inline Object::PropertyLValue<uint32_t> Object::operator [](uint32_t index) {
+  return PropertyLValue<uint32_t>(*this, index);
+}
+
+inline Object::PropertyLValue<Value> Object::operator[](Value index) {
+  return PropertyLValue<Value>(*this, index);
+}
+
+inline Object::PropertyLValue<Value> Object::operator[](Value index) const {
+  return PropertyLValue<Value>(*this, index);
+}
+
+inline MaybeOrValue<Value> Object::operator[](const char* utf8name) const {
+  return Get(utf8name);
+}
+
+inline MaybeOrValue<Value> Object::operator[](
+    const std::string& utf8name) const {
+  return Get(utf8name);
+}
+
+inline MaybeOrValue<Value> Object::operator[](uint32_t index) const {
+  return Get(index);
+}
+
+inline MaybeOrValue<bool> Object::Has(napi_value key) const {
+  bool result;
+  napi_status status = napi_has_property(_env, _value, key, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, result, bool);
+}
+
+inline MaybeOrValue<bool> Object::Has(Value key) const {
+  bool result;
+  napi_status status = napi_has_property(_env, _value, key, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, result, bool);
+}
+
+inline MaybeOrValue<bool> Object::Has(const char* utf8name) const {
+  bool result;
+  napi_status status = napi_has_named_property(_env, _value, utf8name, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, result, bool);
+}
+
+inline MaybeOrValue<bool> Object::Has(const std::string& utf8name) const {
+  return Has(utf8name.c_str());
+}
+
+inline MaybeOrValue<bool> Object::HasOwnProperty(napi_value key) const {
+  bool result;
+  napi_status status = napi_has_own_property(_env, _value, key, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, result, bool);
+}
+
+inline MaybeOrValue<bool> Object::HasOwnProperty(Value key) const {
+  bool result;
+  napi_status status = napi_has_own_property(_env, _value, key, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, result, bool);
+}
+
+inline MaybeOrValue<bool> Object::HasOwnProperty(const char* utf8name) const {
+  napi_value key;
+  napi_status status = napi_create_string_utf8(_env, utf8name, std::strlen(utf8name), &key);
+  NAPI_MAYBE_THROW_IF_FAILED(_env, status, bool);
+  return HasOwnProperty(key);
+}
+
+inline MaybeOrValue<bool> Object::HasOwnProperty(
+    const std::string& utf8name) const {
+  return HasOwnProperty(utf8name.c_str());
+}
+
+inline MaybeOrValue<Value> Object::Get(napi_value key) const {
+  napi_value result;
+  napi_status status = napi_get_property(_env, _value, key, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, Value(_env, result), Value);
+}
+
+inline MaybeOrValue<Value> Object::Get(Value key) const {
+  napi_value result;
+  napi_status status = napi_get_property(_env, _value, key, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, Value(_env, result), Value);
+}
+
+inline MaybeOrValue<Value> Object::Get(const char* utf8name) const {
+  napi_value result;
+  napi_status status = napi_get_named_property(_env, _value, utf8name, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, Value(_env, result), Value);
+}
+
+inline MaybeOrValue<Value> Object::Get(const std::string& utf8name) const {
+  return Get(utf8name.c_str());
+}
+
+template <typename ValueType>
+inline MaybeOrValue<bool> Object::Set(napi_value key, const ValueType& value) {
+  napi_status status =
+      napi_set_property(_env, _value, key, Value::From(_env, value));
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, status == napi_ok, bool);
+}
+
+template <typename ValueType>
+inline MaybeOrValue<bool> Object::Set(Value key, const ValueType& value) {
+  napi_status status =
+      napi_set_property(_env, _value, key, Value::From(_env, value));
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, status == napi_ok, bool);
+}
+
+template <typename ValueType>
+inline MaybeOrValue<bool> Object::Set(const char* utf8name,
+                                      const ValueType& value) {
+  napi_status status =
+      napi_set_named_property(_env, _value, utf8name, Value::From(_env, value));
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, status == napi_ok, bool);
+}
+
+template <typename ValueType>
+inline MaybeOrValue<bool> Object::Set(const std::string& utf8name,
+                                      const ValueType& value) {
+  return Set(utf8name.c_str(), value);
+}
+
+inline MaybeOrValue<bool> Object::Delete(napi_value key) {
+  bool result;
+  napi_status status = napi_delete_property(_env, _value, key, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, result, bool);
+}
+
+inline MaybeOrValue<bool> Object::Delete(Value key) {
+  bool result;
+  napi_status status = napi_delete_property(_env, _value, key, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, result, bool);
+}
+
+inline MaybeOrValue<bool> Object::Delete(const char* utf8name) {
+  return Delete(String::New(_env, utf8name));
+}
+
+inline MaybeOrValue<bool> Object::Delete(const std::string& utf8name) {
+  return Delete(String::New(_env, utf8name));
+}
+
+inline MaybeOrValue<bool> Object::Has(uint32_t index) const {
+  bool result;
+  napi_status status = napi_has_element(_env, _value, index, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, result, bool);
+}
+
+inline MaybeOrValue<Value> Object::Get(uint32_t index) const {
+  napi_value value;
+  napi_status status = napi_get_element(_env, _value, index, &value);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, Value(_env, value), Value);
+}
+
+template <typename ValueType>
+inline MaybeOrValue<bool> Object::Set(uint32_t index, const ValueType& value) {
+  napi_status status =
+      napi_set_element(_env, _value, index, Value::From(_env, value));
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, status == napi_ok, bool);
+}
+
+inline MaybeOrValue<bool> Object::Delete(uint32_t index) {
+  bool result;
+  napi_status status = napi_delete_element(_env, _value, index, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, result, bool);
+}
+
+inline MaybeOrValue<Array> Object::GetPropertyNames() const {
+  napi_value result;
+  napi_status status = napi_get_property_names(_env, _value, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, Array(_env, result), Array);
+}
+
+inline MaybeOrValue<bool> Object::DefineProperty(
+    const PropertyDescriptor& property) {
+  napi_status status = napi_define_properties(_env, _value, 1,
+    reinterpret_cast<const napi_property_descriptor*>(&property));
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, status == napi_ok, bool);
+}
+
+inline MaybeOrValue<bool> Object::DefineProperties(
+    const std::initializer_list<PropertyDescriptor>& properties) {
+  napi_status status = napi_define_properties(_env, _value, properties.size(),
+    reinterpret_cast<const napi_property_descriptor*>(properties.begin()));
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, status == napi_ok, bool);
+}
+
+inline MaybeOrValue<bool> Object::DefineProperties(
+    const std::vector<PropertyDescriptor>& properties) {
+  napi_status status = napi_define_properties(_env, _value, properties.size(),
+    reinterpret_cast<const napi_property_descriptor*>(properties.data()));
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, status == napi_ok, bool);
+}
+
+inline MaybeOrValue<bool> Object::InstanceOf(
+    const Function& constructor) const {
+  bool result;
+  napi_status status = napi_instanceof(_env, _value, constructor, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, result, bool);
+}
+
+template <typename Finalizer, typename T>
+inline void Object::AddFinalizer(Finalizer finalizeCallback, T* data) {
+  details::FinalizeData<T, Finalizer>* finalizeData =
+      new details::FinalizeData<T, Finalizer>(
+          {std::move(finalizeCallback), nullptr});
+  napi_status status =
+      details::AttachData(_env,
+                          *this,
+                          data,
+                          details::FinalizeData<T, Finalizer>::Wrapper,
+                          finalizeData);
+  if (status != napi_ok) {
+    delete finalizeData;
+    NAPI_THROW_IF_FAILED_VOID(_env, status);
+  }
+}
+
+template <typename Finalizer, typename T, typename Hint>
+inline void Object::AddFinalizer(Finalizer finalizeCallback,
+                                 T* data,
+                                 Hint* finalizeHint) {
+  details::FinalizeData<T, Finalizer, Hint>* finalizeData =
+      new details::FinalizeData<T, Finalizer, Hint>(
+          {std::move(finalizeCallback), finalizeHint});
+  napi_status status =
+      details::AttachData(_env,
+                          *this,
+                          data,
+                          details::FinalizeData<T, Finalizer, Hint>::WrapperWithHint,
+                          finalizeData);
+  if (status != napi_ok) {
+    delete finalizeData;
+    NAPI_THROW_IF_FAILED_VOID(_env, status);
+  }
+}
+
+#ifdef NAPI_CPP_EXCEPTIONS
+inline Object::const_iterator::const_iterator(const Object* object,
+                                              const Type type) {
+  _object = object;
+  _keys = object->GetPropertyNames();
+  _index = type == Type::BEGIN ? 0 : _keys.Length();
+}
+
+inline Object::const_iterator Napi::Object::begin() const {
+  const_iterator it(this, Object::const_iterator::Type::BEGIN);
+  return it;
+}
+
+inline Object::const_iterator Napi::Object::end() const {
+  const_iterator it(this, Object::const_iterator::Type::END);
+  return it;
+}
+
+inline Object::const_iterator& Object::const_iterator::operator++() {
+  ++_index;
+  return *this;
+}
+
+inline bool Object::const_iterator::operator==(
+    const const_iterator& other) const {
+  return _index == other._index;
+}
+
+inline bool Object::const_iterator::operator!=(
+    const const_iterator& other) const {
+  return _index != other._index;
+}
+
+inline const std::pair<Value, Object::PropertyLValue<Value>>
+Object::const_iterator::operator*() const {
+  const Value key = _keys[_index];
+  const PropertyLValue<Value> value = (*_object)[key];
+  return {key, value};
+}
+
+inline Object::iterator::iterator(Object* object, const Type type) {
+  _object = object;
+  _keys = object->GetPropertyNames();
+  _index = type == Type::BEGIN ? 0 : _keys.Length();
+}
+
+inline Object::iterator Napi::Object::begin() {
+  iterator it(this, Object::iterator::Type::BEGIN);
+  return it;
+}
+
+inline Object::iterator Napi::Object::end() {
+  iterator it(this, Object::iterator::Type::END);
+  return it;
+}
+
+inline Object::iterator& Object::iterator::operator++() {
+  ++_index;
+  return *this;
+}
+
+inline bool Object::iterator::operator==(const iterator& other) const {
+  return _index == other._index;
+}
+
+inline bool Object::iterator::operator!=(const iterator& other) const {
+  return _index != other._index;
+}
+
+inline std::pair<Value, Object::PropertyLValue<Value>>
+Object::iterator::operator*() {
+  Value key = _keys[_index];
+  PropertyLValue<Value> value = (*_object)[key];
+  return {key, value};
+}
+#endif  // NAPI_CPP_EXCEPTIONS
+
+#if NAPI_VERSION >= 8
+inline MaybeOrValue<bool> Object::Freeze() {
+  napi_status status = napi_object_freeze(_env, _value);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, status == napi_ok, bool);
+}
+
+inline MaybeOrValue<bool> Object::Seal() {
+  napi_status status = napi_object_seal(_env, _value);
+  NAPI_RETURN_OR_THROW_IF_FAILED(_env, status, status == napi_ok, bool);
+}
+#endif  // NAPI_VERSION >= 8
+
+////////////////////////////////////////////////////////////////////////////////
+// External class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline External<T> External<T>::New(napi_env env, T* data) {
+  napi_value value;
+  napi_status status = napi_create_external(env, data, nullptr, nullptr, &value);
+  NAPI_THROW_IF_FAILED(env, status, External());
+  return External(env, value);
+}
+
+template <typename T>
+template <typename Finalizer>
+inline External<T> External<T>::New(napi_env env,
+                                    T* data,
+                                    Finalizer finalizeCallback) {
+  napi_value value;
+  details::FinalizeData<T, Finalizer>* finalizeData =
+      new details::FinalizeData<T, Finalizer>(
+          {std::move(finalizeCallback), nullptr});
+  napi_status status = napi_create_external(
+    env,
+    data,
+    details::FinalizeData<T, Finalizer>::Wrapper,
+    finalizeData,
+    &value);
+  if (status != napi_ok) {
+    delete finalizeData;
+    NAPI_THROW_IF_FAILED(env, status, External());
+  }
+  return External(env, value);
+}
+
+template <typename T>
+template <typename Finalizer, typename Hint>
+inline External<T> External<T>::New(napi_env env,
+                                    T* data,
+                                    Finalizer finalizeCallback,
+                                    Hint* finalizeHint) {
+  napi_value value;
+  details::FinalizeData<T, Finalizer, Hint>* finalizeData =
+      new details::FinalizeData<T, Finalizer, Hint>(
+          {std::move(finalizeCallback), finalizeHint});
+  napi_status status = napi_create_external(
+    env,
+    data,
+    details::FinalizeData<T, Finalizer, Hint>::WrapperWithHint,
+    finalizeData,
+    &value);
+  if (status != napi_ok) {
+    delete finalizeData;
+    NAPI_THROW_IF_FAILED(env, status, External());
+  }
+  return External(env, value);
+}
+
+template <typename T>
+inline External<T>::External() : Value() {
+}
+
+template <typename T>
+inline External<T>::External(napi_env env, napi_value value) : Value(env, value) {
+}
+
+template <typename T>
+inline T* External<T>::Data() const {
+  void* data;
+  napi_status status = napi_get_value_external(_env, _value, &data);
+  NAPI_THROW_IF_FAILED(_env, status, nullptr);
+  return reinterpret_cast<T*>(data);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Array class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Array Array::New(napi_env env) {
+  napi_value value;
+  napi_status status = napi_create_array(env, &value);
+  NAPI_THROW_IF_FAILED(env, status, Array());
+  return Array(env, value);
+}
+
+inline Array Array::New(napi_env env, size_t length) {
+  napi_value value;
+  napi_status status = napi_create_array_with_length(env, length, &value);
+  NAPI_THROW_IF_FAILED(env, status, Array());
+  return Array(env, value);
+}
+
+inline Array::Array() : Object() {
+}
+
+inline Array::Array(napi_env env, napi_value value) : Object(env, value) {
+}
+
+inline uint32_t Array::Length() const {
+  uint32_t result;
+  napi_status status = napi_get_array_length(_env, _value, &result);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return result;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ArrayBuffer class
+////////////////////////////////////////////////////////////////////////////////
+
+inline ArrayBuffer ArrayBuffer::New(napi_env env, size_t byteLength) {
+  napi_value value;
+  void* data;
+  napi_status status = napi_create_arraybuffer(env, byteLength, &data, &value);
+  NAPI_THROW_IF_FAILED(env, status, ArrayBuffer());
+
+  return ArrayBuffer(env, value);
+}
+
+inline ArrayBuffer ArrayBuffer::New(napi_env env,
+                                    void* externalData,
+                                    size_t byteLength) {
+  napi_value value;
+  napi_status status = napi_create_external_arraybuffer(
+    env, externalData, byteLength, nullptr, nullptr, &value);
+  NAPI_THROW_IF_FAILED(env, status, ArrayBuffer());
+
+  return ArrayBuffer(env, value);
+}
+
+template <typename Finalizer>
+inline ArrayBuffer ArrayBuffer::New(napi_env env,
+                                    void* externalData,
+                                    size_t byteLength,
+                                    Finalizer finalizeCallback) {
+  napi_value value;
+  details::FinalizeData<void, Finalizer>* finalizeData =
+      new details::FinalizeData<void, Finalizer>(
+          {std::move(finalizeCallback), nullptr});
+  napi_status status = napi_create_external_arraybuffer(
+    env,
+    externalData,
+    byteLength,
+    details::FinalizeData<void, Finalizer>::Wrapper,
+    finalizeData,
+    &value);
+  if (status != napi_ok) {
+    delete finalizeData;
+    NAPI_THROW_IF_FAILED(env, status, ArrayBuffer());
+  }
+
+  return ArrayBuffer(env, value);
+}
+
+template <typename Finalizer, typename Hint>
+inline ArrayBuffer ArrayBuffer::New(napi_env env,
+                                    void* externalData,
+                                    size_t byteLength,
+                                    Finalizer finalizeCallback,
+                                    Hint* finalizeHint) {
+  napi_value value;
+  details::FinalizeData<void, Finalizer, Hint>* finalizeData =
+      new details::FinalizeData<void, Finalizer, Hint>(
+          {std::move(finalizeCallback), finalizeHint});
+  napi_status status = napi_create_external_arraybuffer(
+    env,
+    externalData,
+    byteLength,
+    details::FinalizeData<void, Finalizer, Hint>::WrapperWithHint,
+    finalizeData,
+    &value);
+  if (status != napi_ok) {
+    delete finalizeData;
+    NAPI_THROW_IF_FAILED(env, status, ArrayBuffer());
+  }
+
+  return ArrayBuffer(env, value);
+}
+
+inline ArrayBuffer::ArrayBuffer() : Object() {
+}
+
+inline ArrayBuffer::ArrayBuffer(napi_env env, napi_value value)
+  : Object(env, value) {
+}
+
+inline void* ArrayBuffer::Data() {
+  void* data;
+  napi_status status = napi_get_arraybuffer_info(_env, _value, &data, nullptr);
+  NAPI_THROW_IF_FAILED(_env, status, nullptr);
+  return data;
+}
+
+inline size_t ArrayBuffer::ByteLength() {
+  size_t length;
+  napi_status status = napi_get_arraybuffer_info(_env, _value, nullptr, &length);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return length;
+}
+
+#if NAPI_VERSION >= 7
+inline bool ArrayBuffer::IsDetached() const {
+  bool detached;
+  napi_status status = napi_is_detached_arraybuffer(_env, _value, &detached);
+  NAPI_THROW_IF_FAILED(_env, status, false);
+  return detached;
+}
+
+inline void ArrayBuffer::Detach() {
+  napi_status status = napi_detach_arraybuffer(_env, _value);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+#endif  // NAPI_VERSION >= 7
+
+////////////////////////////////////////////////////////////////////////////////
+// DataView class
+////////////////////////////////////////////////////////////////////////////////
+inline DataView DataView::New(napi_env env,
+                              Napi::ArrayBuffer arrayBuffer) {
+  return New(env, arrayBuffer, 0, arrayBuffer.ByteLength());
+}
+
+inline DataView DataView::New(napi_env env,
+                              Napi::ArrayBuffer arrayBuffer,
+                              size_t byteOffset) {
+  if (byteOffset > arrayBuffer.ByteLength()) {
+    NAPI_THROW(RangeError::New(env,
+        "Start offset is outside the bounds of the buffer"),
+        DataView());
+  }
+  return New(env, arrayBuffer, byteOffset,
+      arrayBuffer.ByteLength() - byteOffset);
+}
+
+inline DataView DataView::New(napi_env env,
+                              Napi::ArrayBuffer arrayBuffer,
+                              size_t byteOffset,
+                              size_t byteLength) {
+  if (byteOffset + byteLength > arrayBuffer.ByteLength()) {
+    NAPI_THROW(RangeError::New(env, "Invalid DataView length"),
+               DataView());
+  }
+  napi_value value;
+  napi_status status = napi_create_dataview(
+    env, byteLength, arrayBuffer, byteOffset, &value);
+  NAPI_THROW_IF_FAILED(env, status, DataView());
+  return DataView(env, value);
+}
+
+inline DataView::DataView() : Object() {
+}
+
+inline DataView::DataView(napi_env env, napi_value value) : Object(env, value) {
+  napi_status status = napi_get_dataview_info(
+    _env,
+    _value   /* dataView */,
+    &_length /* byteLength */,
+    &_data   /* data */,
+    nullptr  /* arrayBuffer */,
+    nullptr  /* byteOffset */);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline Napi::ArrayBuffer DataView::ArrayBuffer() const {
+  napi_value arrayBuffer;
+  napi_status status = napi_get_dataview_info(
+    _env,
+    _value       /* dataView */,
+    nullptr      /* byteLength */,
+    nullptr      /* data */,
+    &arrayBuffer /* arrayBuffer */,
+    nullptr      /* byteOffset */);
+  NAPI_THROW_IF_FAILED(_env, status, Napi::ArrayBuffer());
+  return Napi::ArrayBuffer(_env, arrayBuffer);
+}
+
+inline size_t DataView::ByteOffset() const {
+  size_t byteOffset;
+  napi_status status = napi_get_dataview_info(
+    _env,
+    _value      /* dataView */,
+    nullptr     /* byteLength */,
+    nullptr     /* data */,
+    nullptr     /* arrayBuffer */,
+    &byteOffset /* byteOffset */);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return byteOffset;
+}
+
+inline size_t DataView::ByteLength() const {
+  return _length;
+}
+
+inline void* DataView::Data() const {
+  return _data;
+}
+
+inline float DataView::GetFloat32(size_t byteOffset) const {
+  return ReadData<float>(byteOffset);
+}
+
+inline double DataView::GetFloat64(size_t byteOffset) const {
+  return ReadData<double>(byteOffset);
+}
+
+inline int8_t DataView::GetInt8(size_t byteOffset) const {
+  return ReadData<int8_t>(byteOffset);
+}
+
+inline int16_t DataView::GetInt16(size_t byteOffset) const {
+  return ReadData<int16_t>(byteOffset);
+}
+
+inline int32_t DataView::GetInt32(size_t byteOffset) const {
+  return ReadData<int32_t>(byteOffset);
+}
+
+inline uint8_t DataView::GetUint8(size_t byteOffset) const {
+  return ReadData<uint8_t>(byteOffset);
+}
+
+inline uint16_t DataView::GetUint16(size_t byteOffset) const {
+  return ReadData<uint16_t>(byteOffset);
+}
+
+inline uint32_t DataView::GetUint32(size_t byteOffset) const {
+  return ReadData<uint32_t>(byteOffset);
+}
+
+inline void DataView::SetFloat32(size_t byteOffset, float value) const {
+  WriteData<float>(byteOffset, value);
+}
+
+inline void DataView::SetFloat64(size_t byteOffset, double value) const {
+  WriteData<double>(byteOffset, value);
+}
+
+inline void DataView::SetInt8(size_t byteOffset, int8_t value) const {
+  WriteData<int8_t>(byteOffset, value);
+}
+
+inline void DataView::SetInt16(size_t byteOffset, int16_t value) const {
+  WriteData<int16_t>(byteOffset, value);
+}
+
+inline void DataView::SetInt32(size_t byteOffset, int32_t value) const {
+  WriteData<int32_t>(byteOffset, value);
+}
+
+inline void DataView::SetUint8(size_t byteOffset, uint8_t value) const {
+  WriteData<uint8_t>(byteOffset, value);
+}
+
+inline void DataView::SetUint16(size_t byteOffset, uint16_t value) const {
+  WriteData<uint16_t>(byteOffset, value);
+}
+
+inline void DataView::SetUint32(size_t byteOffset, uint32_t value) const {
+  WriteData<uint32_t>(byteOffset, value);
+}
+
+template <typename T>
+inline T DataView::ReadData(size_t byteOffset) const {
+  if (byteOffset + sizeof(T) > _length ||
+      byteOffset + sizeof(T) < byteOffset) {  // overflow
+    NAPI_THROW(RangeError::New(_env,
+        "Offset is outside the bounds of the DataView"), 0);
+  }
+
+  return *reinterpret_cast<T*>(static_cast<uint8_t*>(_data) + byteOffset);
+}
+
+template <typename T>
+inline void DataView::WriteData(size_t byteOffset, T value) const {
+  if (byteOffset + sizeof(T) > _length ||
+      byteOffset + sizeof(T) < byteOffset) {  // overflow
+    NAPI_THROW_VOID(RangeError::New(_env,
+        "Offset is outside the bounds of the DataView"));
+  }
+
+  *reinterpret_cast<T*>(static_cast<uint8_t*>(_data) + byteOffset) = value;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// TypedArray class
+////////////////////////////////////////////////////////////////////////////////
+
+inline TypedArray::TypedArray()
+  : Object(), _type(TypedArray::unknown_array_type), _length(0) {
+}
+
+inline TypedArray::TypedArray(napi_env env, napi_value value)
+  : Object(env, value), _type(TypedArray::unknown_array_type), _length(0) {
+}
+
+inline TypedArray::TypedArray(napi_env env,
+                              napi_value value,
+                              napi_typedarray_type type,
+                              size_t length)
+  : Object(env, value), _type(type), _length(length) {
+}
+
+inline napi_typedarray_type TypedArray::TypedArrayType() const {
+  if (_type == TypedArray::unknown_array_type) {
+    napi_status status = napi_get_typedarray_info(_env, _value,
+      &const_cast<TypedArray*>(this)->_type, &const_cast<TypedArray*>(this)->_length,
+      nullptr, nullptr, nullptr);
+    NAPI_THROW_IF_FAILED(_env, status, napi_int8_array);
+  }
+
+  return _type;
+}
+
+inline uint8_t TypedArray::ElementSize() const {
+  switch (TypedArrayType()) {
+    case napi_int8_array:
+    case napi_uint8_array:
+    case napi_uint8_clamped_array:
+      return 1;
+    case napi_int16_array:
+    case napi_uint16_array:
+      return 2;
+    case napi_int32_array:
+    case napi_uint32_array:
+    case napi_float32_array:
+      return 4;
+    case napi_float64_array:
+#if (NAPI_VERSION > 5)
+    case napi_bigint64_array:
+    case napi_biguint64_array:
+#endif  // (NAPI_VERSION > 5)
+      return 8;
+    default:
+      return 0;
+  }
+}
+
+inline size_t TypedArray::ElementLength() const {
+  if (_type == TypedArray::unknown_array_type) {
+    napi_status status = napi_get_typedarray_info(_env, _value,
+      &const_cast<TypedArray*>(this)->_type, &const_cast<TypedArray*>(this)->_length,
+      nullptr, nullptr, nullptr);
+    NAPI_THROW_IF_FAILED(_env, status, 0);
+  }
+
+  return _length;
+}
+
+inline size_t TypedArray::ByteOffset() const {
+  size_t byteOffset;
+  napi_status status = napi_get_typedarray_info(
+    _env, _value, nullptr, nullptr, nullptr, nullptr, &byteOffset);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return byteOffset;
+}
+
+inline size_t TypedArray::ByteLength() const {
+  return ElementSize() * ElementLength();
+}
+
+inline Napi::ArrayBuffer TypedArray::ArrayBuffer() const {
+  napi_value arrayBuffer;
+  napi_status status = napi_get_typedarray_info(
+    _env, _value, nullptr, nullptr, nullptr, &arrayBuffer, nullptr);
+  NAPI_THROW_IF_FAILED(_env, status, Napi::ArrayBuffer());
+  return Napi::ArrayBuffer(_env, arrayBuffer);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// TypedArrayOf<T> class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline TypedArrayOf<T> TypedArrayOf<T>::New(napi_env env,
+                                            size_t elementLength,
+                                            napi_typedarray_type type) {
+  Napi::ArrayBuffer arrayBuffer = Napi::ArrayBuffer::New(env, elementLength * sizeof (T));
+  return New(env, elementLength, arrayBuffer, 0, type);
+}
+
+template <typename T>
+inline TypedArrayOf<T> TypedArrayOf<T>::New(napi_env env,
+                                            size_t elementLength,
+                                            Napi::ArrayBuffer arrayBuffer,
+                                            size_t bufferOffset,
+                                            napi_typedarray_type type) {
+  napi_value value;
+  napi_status status = napi_create_typedarray(
+    env, type, elementLength, arrayBuffer, bufferOffset, &value);
+  NAPI_THROW_IF_FAILED(env, status, TypedArrayOf<T>());
+
+  return TypedArrayOf<T>(
+    env, value, type, elementLength,
+    reinterpret_cast<T*>(reinterpret_cast<uint8_t*>(arrayBuffer.Data()) + bufferOffset));
+}
+
+template <typename T>
+inline TypedArrayOf<T>::TypedArrayOf() : TypedArray(), _data(nullptr) {
+}
+
+template <typename T>
+inline TypedArrayOf<T>::TypedArrayOf(napi_env env, napi_value value)
+  : TypedArray(env, value), _data(nullptr) {
+  napi_status status = napi_ok;
+  if (value != nullptr) {
+    void* data = nullptr;
+    status = napi_get_typedarray_info(
+        _env, _value, &_type, &_length, &data, nullptr, nullptr);
+    _data = static_cast<T*>(data);
+  } else {
+    _type = TypedArrayTypeForPrimitiveType<T>();
+    _length = 0;
+  }
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+template <typename T>
+inline TypedArrayOf<T>::TypedArrayOf(napi_env env,
+                                     napi_value value,
+                                     napi_typedarray_type type,
+                                     size_t length,
+                                     T* data)
+  : TypedArray(env, value, type, length), _data(data) {
+  if (!(type == TypedArrayTypeForPrimitiveType<T>() ||
+      (type == napi_uint8_clamped_array && std::is_same<T, uint8_t>::value))) {
+    NAPI_THROW_VOID(TypeError::New(env, "Array type must match the template parameter. "
+      "(Uint8 arrays may optionally have the \"clamped\" array type.)"));
+  }
+}
+
+template <typename T>
+inline T& TypedArrayOf<T>::operator [](size_t index) {
+  return _data[index];
+}
+
+template <typename T>
+inline const T& TypedArrayOf<T>::operator [](size_t index) const {
+  return _data[index];
+}
+
+template <typename T>
+inline T* TypedArrayOf<T>::Data() {
+  return _data;
+}
+
+template <typename T>
+inline const T* TypedArrayOf<T>::Data() const {
+  return _data;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Function class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename CbData>
+static inline napi_status
+CreateFunction(napi_env env,
+               const char* utf8name,
+               napi_callback cb,
+               CbData* data,
+               napi_value* result) {
+  napi_status status =
+      napi_create_function(env, utf8name, NAPI_AUTO_LENGTH, cb, data, result);
+  if (status == napi_ok) {
+    status = Napi::details::AttachData(env, *result, data);
+  }
+
+  return status;
+}
+
+template <Function::VoidCallback cb>
+inline Function Function::New(napi_env env, const char* utf8name, void* data) {
+  napi_value result = nullptr;
+  napi_status status = napi_create_function(env,
+                                            utf8name,
+                                            NAPI_AUTO_LENGTH,
+                                            details::TemplatedVoidCallback<cb>,
+                                            data,
+                                            &result);
+  NAPI_THROW_IF_FAILED(env, status, Function());
+  return Function(env, result);
+}
+
+template <Function::Callback cb>
+inline Function Function::New(napi_env env, const char* utf8name, void* data) {
+  napi_value result = nullptr;
+  napi_status status = napi_create_function(env,
+                                            utf8name,
+                                            NAPI_AUTO_LENGTH,
+                                            details::TemplatedCallback<cb>,
+                                            data,
+                                            &result);
+  NAPI_THROW_IF_FAILED(env, status, Function());
+  return Function(env, result);
+}
+
+template <Function::VoidCallback cb>
+inline Function Function::New(napi_env env,
+                              const std::string& utf8name,
+                              void* data) {
+  return Function::New<cb>(env, utf8name.c_str(), data);
+}
+
+template <Function::Callback cb>
+inline Function Function::New(napi_env env,
+                              const std::string& utf8name,
+                              void* data) {
+  return Function::New<cb>(env, utf8name.c_str(), data);
+}
+
+template <typename Callable>
+inline Function Function::New(napi_env env,
+                              Callable cb,
+                              const char* utf8name,
+                              void* data) {
+  using ReturnType = decltype(cb(CallbackInfo(nullptr, nullptr)));
+  using CbData = details::CallbackData<Callable, ReturnType>;
+  auto callbackData = new CbData{std::move(cb), data};
+
+  napi_value value;
+  napi_status status = CreateFunction(env,
+                                      utf8name,
+                                      CbData::Wrapper,
+                                      callbackData,
+                                      &value);
+  if (status != napi_ok) {
+    delete callbackData;
+    NAPI_THROW_IF_FAILED(env, status, Function());
+  }
+
+  return Function(env, value);
+}
+
+template <typename Callable>
+inline Function Function::New(napi_env env,
+                              Callable cb,
+                              const std::string& utf8name,
+                              void* data) {
+  return New(env, cb, utf8name.c_str(), data);
+}
+
+inline Function::Function() : Object() {
+}
+
+inline Function::Function(napi_env env, napi_value value) : Object(env, value) {
+}
+
+inline MaybeOrValue<Value> Function::operator()(
+    const std::initializer_list<napi_value>& args) const {
+  return Call(Env().Undefined(), args);
+}
+
+inline MaybeOrValue<Value> Function::Call(
+    const std::initializer_list<napi_value>& args) const {
+  return Call(Env().Undefined(), args);
+}
+
+inline MaybeOrValue<Value> Function::Call(
+    const std::vector<napi_value>& args) const {
+  return Call(Env().Undefined(), args);
+}
+
+inline MaybeOrValue<Value> Function::Call(size_t argc,
+                                          const napi_value* args) const {
+  return Call(Env().Undefined(), argc, args);
+}
+
+inline MaybeOrValue<Value> Function::Call(
+    napi_value recv, const std::initializer_list<napi_value>& args) const {
+  return Call(recv, args.size(), args.begin());
+}
+
+inline MaybeOrValue<Value> Function::Call(
+    napi_value recv, const std::vector<napi_value>& args) const {
+  return Call(recv, args.size(), args.data());
+}
+
+inline MaybeOrValue<Value> Function::Call(napi_value recv,
+                                          size_t argc,
+                                          const napi_value* args) const {
+  napi_value result;
+  napi_status status = napi_call_function(
+    _env, recv, _value, argc, args, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(
+      _env, status, Napi::Value(_env, result), Napi::Value);
+}
+
+inline MaybeOrValue<Value> Function::MakeCallback(
+    napi_value recv,
+    const std::initializer_list<napi_value>& args,
+    napi_async_context context) const {
+  return MakeCallback(recv, args.size(), args.begin(), context);
+}
+
+inline MaybeOrValue<Value> Function::MakeCallback(
+    napi_value recv,
+    const std::vector<napi_value>& args,
+    napi_async_context context) const {
+  return MakeCallback(recv, args.size(), args.data(), context);
+}
+
+inline MaybeOrValue<Value> Function::MakeCallback(
+    napi_value recv,
+    size_t argc,
+    const napi_value* args,
+    napi_async_context context) const {
+  napi_value result;
+  napi_status status = napi_make_callback(
+    _env, context, recv, _value, argc, args, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(
+      _env, status, Napi::Value(_env, result), Napi::Value);
+}
+
+inline MaybeOrValue<Object> Function::New(
+    const std::initializer_list<napi_value>& args) const {
+  return New(args.size(), args.begin());
+}
+
+inline MaybeOrValue<Object> Function::New(
+    const std::vector<napi_value>& args) const {
+  return New(args.size(), args.data());
+}
+
+inline MaybeOrValue<Object> Function::New(size_t argc,
+                                          const napi_value* args) const {
+  napi_value result;
+  napi_status status = napi_new_instance(
+    _env, _value, argc, args, &result);
+  NAPI_RETURN_OR_THROW_IF_FAILED(
+      _env, status, Napi::Object(_env, result), Napi::Object);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Promise class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Promise::Deferred Promise::Deferred::New(napi_env env) {
+  return Promise::Deferred(env);
+}
+
+inline Promise::Deferred::Deferred(napi_env env) : _env(env) {
+  napi_status status = napi_create_promise(_env, &_deferred, &_promise);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline Promise Promise::Deferred::Promise() const {
+  return Napi::Promise(_env, _promise);
+}
+
+inline Napi::Env Promise::Deferred::Env() const {
+  return Napi::Env(_env);
+}
+
+inline void Promise::Deferred::Resolve(napi_value value) const {
+  napi_status status = napi_resolve_deferred(_env, _deferred, value);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline void Promise::Deferred::Reject(napi_value value) const {
+  napi_status status = napi_reject_deferred(_env, _deferred, value);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline Promise::Promise(napi_env env, napi_value value) : Object(env, value) {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Buffer<T> class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline Buffer<T> Buffer<T>::New(napi_env env, size_t length) {
+  napi_value value;
+  void* data;
+  napi_status status = napi_create_buffer(env, length * sizeof (T), &data, &value);
+  NAPI_THROW_IF_FAILED(env, status, Buffer<T>());
+  return Buffer(env, value, length, static_cast<T*>(data));
+}
+
+template <typename T>
+inline Buffer<T> Buffer<T>::New(napi_env env, T* data, size_t length) {
+  napi_value value;
+  napi_status status = napi_create_external_buffer(
+    env, length * sizeof (T), data, nullptr, nullptr, &value);
+  NAPI_THROW_IF_FAILED(env, status, Buffer<T>());
+  return Buffer(env, value, length, data);
+}
+
+template <typename T>
+template <typename Finalizer>
+inline Buffer<T> Buffer<T>::New(napi_env env,
+                                T* data,
+                                size_t length,
+                                Finalizer finalizeCallback) {
+  napi_value value;
+  details::FinalizeData<T, Finalizer>* finalizeData =
+      new details::FinalizeData<T, Finalizer>(
+          {std::move(finalizeCallback), nullptr});
+  napi_status status = napi_create_external_buffer(
+    env,
+    length * sizeof (T),
+    data,
+    details::FinalizeData<T, Finalizer>::Wrapper,
+    finalizeData,
+    &value);
+  if (status != napi_ok) {
+    delete finalizeData;
+    NAPI_THROW_IF_FAILED(env, status, Buffer());
+  }
+  return Buffer(env, value, length, data);
+}
+
+template <typename T>
+template <typename Finalizer, typename Hint>
+inline Buffer<T> Buffer<T>::New(napi_env env,
+                                T* data,
+                                size_t length,
+                                Finalizer finalizeCallback,
+                                Hint* finalizeHint) {
+  napi_value value;
+  details::FinalizeData<T, Finalizer, Hint>* finalizeData =
+      new details::FinalizeData<T, Finalizer, Hint>(
+          {std::move(finalizeCallback), finalizeHint});
+  napi_status status = napi_create_external_buffer(
+    env,
+    length * sizeof (T),
+    data,
+    details::FinalizeData<T, Finalizer, Hint>::WrapperWithHint,
+    finalizeData,
+    &value);
+  if (status != napi_ok) {
+    delete finalizeData;
+    NAPI_THROW_IF_FAILED(env, status, Buffer());
+  }
+  return Buffer(env, value, length, data);
+}
+
+template <typename T>
+inline Buffer<T> Buffer<T>::Copy(napi_env env, const T* data, size_t length) {
+  napi_value value;
+  napi_status status = napi_create_buffer_copy(
+    env, length * sizeof (T), data, nullptr, &value);
+  NAPI_THROW_IF_FAILED(env, status, Buffer<T>());
+  return Buffer<T>(env, value);
+}
+
+template <typename T>
+inline Buffer<T>::Buffer() : Uint8Array(), _length(0), _data(nullptr) {
+}
+
+template <typename T>
+inline Buffer<T>::Buffer(napi_env env, napi_value value)
+  : Uint8Array(env, value), _length(0), _data(nullptr) {
+}
+
+template <typename T>
+inline Buffer<T>::Buffer(napi_env env, napi_value value, size_t length, T* data)
+  : Uint8Array(env, value), _length(length), _data(data) {
+}
+
+template <typename T>
+inline size_t Buffer<T>::Length() const {
+  EnsureInfo();
+  return _length;
+}
+
+template <typename T>
+inline T* Buffer<T>::Data() const {
+  EnsureInfo();
+  return _data;
+}
+
+template <typename T>
+inline void Buffer<T>::EnsureInfo() const {
+  // The Buffer instance may have been constructed from a napi_value whose
+  // length/data are not yet known. Fetch and cache these values just once,
+  // since they can never change during the lifetime of the Buffer.
+  if (_data == nullptr) {
+    size_t byteLength;
+    void* voidData;
+    napi_status status = napi_get_buffer_info(_env, _value, &voidData, &byteLength);
+    NAPI_THROW_IF_FAILED_VOID(_env, status);
+    _length = byteLength / sizeof (T);
+    _data = static_cast<T*>(voidData);
+  }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Error class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Error Error::New(napi_env env) {
+  napi_status status;
+  napi_value error = nullptr;
+  bool is_exception_pending;
+  napi_extended_error_info last_error_info_copy;
+
+  {
+    // We must retrieve the last error info before doing anything else because
+    // doing anything else will replace the last error info.
+    const napi_extended_error_info* last_error_info;
+    status = napi_get_last_error_info(env, &last_error_info);
+    NAPI_FATAL_IF_FAILED(status, "Error::New", "napi_get_last_error_info");
+
+    // All fields of the `napi_extended_error_info` structure gets reset in
+    // subsequent Node-API function calls on the same `env`. This includes a
+    // call to `napi_is_exception_pending()`. So here it is necessary to make a
+    // copy of the information as the `error_code` field is used later on.
+    memcpy(&last_error_info_copy,
+           last_error_info,
+           sizeof(napi_extended_error_info));
+  }
+
+  status = napi_is_exception_pending(env, &is_exception_pending);
+  NAPI_FATAL_IF_FAILED(status, "Error::New", "napi_is_exception_pending");
+
+  // A pending exception takes precedence over any internal error status.
+  if (is_exception_pending) {
+    status = napi_get_and_clear_last_exception(env, &error);
+    NAPI_FATAL_IF_FAILED(status, "Error::New", "napi_get_and_clear_last_exception");
+  }
+  else {
+    const char* error_message = last_error_info_copy.error_message != nullptr
+                                    ? last_error_info_copy.error_message
+                                    : "Error in native callback";
+
+    napi_value message;
+    status = napi_create_string_utf8(
+      env,
+      error_message,
+      std::strlen(error_message),
+      &message);
+    NAPI_FATAL_IF_FAILED(status, "Error::New", "napi_create_string_utf8");
+
+    switch (last_error_info_copy.error_code) {
+      case napi_object_expected:
+      case napi_string_expected:
+      case napi_boolean_expected:
+      case napi_number_expected:
+        status = napi_create_type_error(env, nullptr, message, &error);
+        break;
+      default:
+        status = napi_create_error(env, nullptr, message, &error);
+        break;
+    }
+    NAPI_FATAL_IF_FAILED(status, "Error::New", "napi_create_error");
+  }
+
+  return Error(env, error);
+}
+
+inline Error Error::New(napi_env env, const char* message) {
+  return Error::New<Error>(env, message, std::strlen(message), napi_create_error);
+}
+
+inline Error Error::New(napi_env env, const std::string& message) {
+  return Error::New<Error>(env, message.c_str(), message.size(), napi_create_error);
+}
+
+inline NAPI_NO_RETURN void Error::Fatal(const char* location, const char* message) {
+  napi_fatal_error(location, NAPI_AUTO_LENGTH, message, NAPI_AUTO_LENGTH);
+}
+
+inline Error::Error() : ObjectReference() {
+}
+
+inline Error::Error(napi_env env, napi_value value) : ObjectReference(env, nullptr) {
+  if (value != nullptr) {
+    // Attempting to create a reference on the error object.
+    // If it's not a Object/Function/Symbol, this call will return an error
+    // status.
+    napi_status status = napi_create_reference(env, value, 1, &_ref);
+
+    if (status != napi_ok) {
+      napi_value wrappedErrorObj;
+
+      // Create an error object
+      status = napi_create_object(env, &wrappedErrorObj);
+      NAPI_FATAL_IF_FAILED(status, "Error::Error", "napi_create_object");
+
+      // property flag that we attach to show the error object is wrapped
+      napi_property_descriptor wrapObjFlag = {
+          ERROR_WRAP_VALUE,  // Unique GUID identifier since Symbol isn't a
+                             // viable option
+          nullptr,
+          nullptr,
+          nullptr,
+          nullptr,
+          Value::From(env, value),
+          napi_enumerable,
+          nullptr};
+
+      status = napi_define_properties(env, wrappedErrorObj, 1, &wrapObjFlag);
+      NAPI_FATAL_IF_FAILED(status, "Error::Error", "napi_define_properties");
+
+      // Create a reference on the newly wrapped object
+      status = napi_create_reference(env, wrappedErrorObj, 1, &_ref);
+    }
+
+    // Avoid infinite recursion in the failure case.
+    NAPI_FATAL_IF_FAILED(status, "Error::Error", "napi_create_reference");
+  }
+}
+
+inline Object Error::Value() const {
+  if (_ref == nullptr) {
+    return Object(_env, nullptr);
+  }
+
+  napi_value refValue;
+  napi_status status = napi_get_reference_value(_env, _ref, &refValue);
+  NAPI_THROW_IF_FAILED(_env, status, Object());
+
+  napi_valuetype type;
+  status = napi_typeof(_env, refValue, &type);
+  NAPI_THROW_IF_FAILED(_env, status, Object());
+
+  // If refValue isn't a symbol, then we proceed to whether the refValue has the
+  // wrapped error flag
+  if (type != napi_symbol) {
+    // We are checking if the object is wrapped
+    bool isWrappedObject = false;
+
+    status = napi_has_property(
+        _env, refValue, String::From(_env, ERROR_WRAP_VALUE), &isWrappedObject);
+
+    // Don't care about status
+    if (isWrappedObject) {
+      napi_value unwrappedValue;
+      status = napi_get_property(_env,
+                                 refValue,
+                                 String::From(_env, ERROR_WRAP_VALUE),
+                                 &unwrappedValue);
+      NAPI_THROW_IF_FAILED(_env, status, Object());
+
+      return Object(_env, unwrappedValue);
+    }
+  }
+
+  return Object(_env, refValue);
+}
+
+inline Error::Error(Error&& other) : ObjectReference(std::move(other)) {
+}
+
+inline Error& Error::operator =(Error&& other) {
+  static_cast<Reference<Object>*>(this)->operator=(std::move(other));
+  return *this;
+}
+
+inline Error::Error(const Error& other) : ObjectReference(other) {
+}
+
+inline Error& Error::operator =(const Error& other) {
+  Reset();
+
+  _env = other.Env();
+  HandleScope scope(_env);
+
+  napi_value value = other.Value();
+  if (value != nullptr) {
+    napi_status status = napi_create_reference(_env, value, 1, &_ref);
+    NAPI_THROW_IF_FAILED(_env, status, *this);
+  }
+
+  return *this;
+}
+
+inline const std::string& Error::Message() const NAPI_NOEXCEPT {
+  if (_message.size() == 0 && _env != nullptr) {
+#ifdef NAPI_CPP_EXCEPTIONS
+    try {
+      _message = Get("message").As<String>();
+    }
+    catch (...) {
+      // Catch all errors here, to include e.g. a std::bad_alloc from
+      // the std::string::operator=, because this method may not throw.
+    }
+#else // NAPI_CPP_EXCEPTIONS
+#if defined(NODE_ADDON_API_ENABLE_MAYBE)
+    Napi::Value message_val;
+    if (Get("message").UnwrapTo(&message_val)) {
+      _message = message_val.As<String>();
+    }
+#else
+    _message = Get("message").As<String>();
+#endif
+#endif // NAPI_CPP_EXCEPTIONS
+  }
+  return _message;
+}
+
+// we created an object on the &_ref
+inline void Error::ThrowAsJavaScriptException() const {
+  HandleScope scope(_env);
+  if (!IsEmpty()) {
+#ifdef NODE_API_SWALLOW_UNTHROWABLE_EXCEPTIONS
+    bool pendingException = false;
+
+    // check if there is already a pending exception. If so don't try to throw a
+    // new one as that is not allowed/possible
+    napi_status status = napi_is_exception_pending(_env, &pendingException);
+
+    if ((status != napi_ok) ||
+        ((status == napi_ok) && (pendingException == false))) {
+      // We intentionally don't use `NAPI_THROW_*` macros here to ensure
+      // that there is no possible recursion as `ThrowAsJavaScriptException`
+      // is part of `NAPI_THROW_*` macro definition for noexcept.
+
+      status = napi_throw(_env, Value());
+
+      if (status == napi_pending_exception) {
+        // The environment must be terminating as we checked earlier and there
+        // was no pending exception. In this case continuing will result
+        // in a fatal error and there is nothing the author has done incorrectly
+        // in their code that is worth flagging through a fatal error
+        return;
+      }
+    } else {
+      status = napi_pending_exception;
+    }
+#else
+    // We intentionally don't use `NAPI_THROW_*` macros here to ensure
+    // that there is no possible recursion as `ThrowAsJavaScriptException`
+    // is part of `NAPI_THROW_*` macro definition for noexcept.
+
+    napi_status status = napi_throw(_env, Value());
+#endif
+
+#ifdef NAPI_CPP_EXCEPTIONS
+    if (status != napi_ok) {
+      throw Error::New(_env);
+    }
+#else // NAPI_CPP_EXCEPTIONS
+    NAPI_FATAL_IF_FAILED(status, "Error::ThrowAsJavaScriptException", "napi_throw");
+#endif // NAPI_CPP_EXCEPTIONS
+  }
+}
+
+#ifdef NAPI_CPP_EXCEPTIONS
+
+inline const char* Error::what() const NAPI_NOEXCEPT {
+  return Message().c_str();
+}
+
+#endif // NAPI_CPP_EXCEPTIONS
+
+template <typename TError>
+inline TError Error::New(napi_env env,
+                         const char* message,
+                         size_t length,
+                         create_error_fn create_error) {
+  napi_value str;
+  napi_status status = napi_create_string_utf8(env, message, length, &str);
+  NAPI_THROW_IF_FAILED(env, status, TError());
+
+  napi_value error;
+  status = create_error(env, nullptr, str, &error);
+  NAPI_THROW_IF_FAILED(env, status, TError());
+
+  return TError(env, error);
+}
+
+inline TypeError TypeError::New(napi_env env, const char* message) {
+  return Error::New<TypeError>(env, message, std::strlen(message), napi_create_type_error);
+}
+
+inline TypeError TypeError::New(napi_env env, const std::string& message) {
+  return Error::New<TypeError>(env, message.c_str(), message.size(), napi_create_type_error);
+}
+
+inline TypeError::TypeError() : Error() {
+}
+
+inline TypeError::TypeError(napi_env env, napi_value value) : Error(env, value) {
+}
+
+inline RangeError RangeError::New(napi_env env, const char* message) {
+  return Error::New<RangeError>(env, message, std::strlen(message), napi_create_range_error);
+}
+
+inline RangeError RangeError::New(napi_env env, const std::string& message) {
+  return Error::New<RangeError>(env, message.c_str(), message.size(), napi_create_range_error);
+}
+
+inline RangeError::RangeError() : Error() {
+}
+
+inline RangeError::RangeError(napi_env env, napi_value value) : Error(env, value) {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Reference<T> class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline Reference<T> Reference<T>::New(const T& value, uint32_t initialRefcount) {
+  napi_env env = value.Env();
+  napi_value val = value;
+
+  if (val == nullptr) {
+    return Reference<T>(env, nullptr);
+  }
+
+  napi_ref ref;
+  napi_status status = napi_create_reference(env, value, initialRefcount, &ref);
+  NAPI_THROW_IF_FAILED(env, status, Reference<T>());
+
+  return Reference<T>(env, ref);
+}
+
+
+template <typename T>
+inline Reference<T>::Reference() : _env(nullptr), _ref(nullptr), _suppressDestruct(false) {
+}
+
+template <typename T>
+inline Reference<T>::Reference(napi_env env, napi_ref ref)
+  : _env(env), _ref(ref), _suppressDestruct(false) {
+}
+
+template <typename T>
+inline Reference<T>::~Reference() {
+  if (_ref != nullptr) {
+    if (!_suppressDestruct) {
+      napi_delete_reference(_env, _ref);
+    }
+
+    _ref = nullptr;
+  }
+}
+
+template <typename T>
+inline Reference<T>::Reference(Reference<T>&& other)
+  : _env(other._env), _ref(other._ref), _suppressDestruct(other._suppressDestruct) {
+  other._env = nullptr;
+  other._ref = nullptr;
+  other._suppressDestruct = false;
+}
+
+template <typename T>
+inline Reference<T>& Reference<T>::operator =(Reference<T>&& other) {
+  Reset();
+  _env = other._env;
+  _ref = other._ref;
+  _suppressDestruct = other._suppressDestruct;
+  other._env = nullptr;
+  other._ref = nullptr;
+  other._suppressDestruct = false;
+  return *this;
+}
+
+template <typename T>
+inline Reference<T>::Reference(const Reference<T>& other)
+  : _env(other._env), _ref(nullptr), _suppressDestruct(false) {
+  HandleScope scope(_env);
+
+  napi_value value = other.Value();
+  if (value != nullptr) {
+    // Copying is a limited scenario (currently only used for Error object) and always creates a
+    // strong reference to the given value even if the incoming reference is weak.
+    napi_status status = napi_create_reference(_env, value, 1, &_ref);
+    NAPI_FATAL_IF_FAILED(status, "Reference<T>::Reference", "napi_create_reference");
+  }
+}
+
+template <typename T>
+inline Reference<T>::operator napi_ref() const {
+  return _ref;
+}
+
+template <typename T>
+inline bool Reference<T>::operator ==(const Reference<T> &other) const {
+  HandleScope scope(_env);
+  return this->Value().StrictEquals(other.Value());
+}
+
+template <typename T>
+inline bool Reference<T>::operator !=(const Reference<T> &other) const {
+  return !this->operator ==(other);
+}
+
+template <typename T>
+inline Napi::Env Reference<T>::Env() const {
+  return Napi::Env(_env);
+}
+
+template <typename T>
+inline bool Reference<T>::IsEmpty() const {
+  return _ref == nullptr;
+}
+
+template <typename T>
+inline T Reference<T>::Value() const {
+  if (_ref == nullptr) {
+    return T(_env, nullptr);
+  }
+
+  napi_value value;
+  napi_status status = napi_get_reference_value(_env, _ref, &value);
+  NAPI_THROW_IF_FAILED(_env, status, T());
+  return T(_env, value);
+}
+
+template <typename T>
+inline uint32_t Reference<T>::Ref() {
+  uint32_t result;
+  napi_status status = napi_reference_ref(_env, _ref, &result);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return result;
+}
+
+template <typename T>
+inline uint32_t Reference<T>::Unref() {
+  uint32_t result;
+  napi_status status = napi_reference_unref(_env, _ref, &result);
+  NAPI_THROW_IF_FAILED(_env, status, 0);
+  return result;
+}
+
+template <typename T>
+inline void Reference<T>::Reset() {
+  if (_ref != nullptr) {
+    napi_status status = napi_delete_reference(_env, _ref);
+    NAPI_THROW_IF_FAILED_VOID(_env, status);
+    _ref = nullptr;
+  }
+}
+
+template <typename T>
+inline void Reference<T>::Reset(const T& value, uint32_t refcount) {
+  Reset();
+  _env = value.Env();
+
+  napi_value val = value;
+  if (val != nullptr) {
+    napi_status status = napi_create_reference(_env, value, refcount, &_ref);
+    NAPI_THROW_IF_FAILED_VOID(_env, status);
+  }
+}
+
+template <typename T>
+inline void Reference<T>::SuppressDestruct() {
+  _suppressDestruct = true;
+}
+
+template <typename T>
+inline Reference<T> Weak(T value) {
+  return Reference<T>::New(value, 0);
+}
+
+inline ObjectReference Weak(Object value) {
+  return Reference<Object>::New(value, 0);
+}
+
+inline FunctionReference Weak(Function value) {
+  return Reference<Function>::New(value, 0);
+}
+
+template <typename T>
+inline Reference<T> Persistent(T value) {
+  return Reference<T>::New(value, 1);
+}
+
+inline ObjectReference Persistent(Object value) {
+  return Reference<Object>::New(value, 1);
+}
+
+inline FunctionReference Persistent(Function value) {
+  return Reference<Function>::New(value, 1);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ObjectReference class
+////////////////////////////////////////////////////////////////////////////////
+
+inline ObjectReference::ObjectReference(): Reference<Object>() {
+}
+
+inline ObjectReference::ObjectReference(napi_env env, napi_ref ref): Reference<Object>(env, ref) {
+}
+
+inline ObjectReference::ObjectReference(Reference<Object>&& other)
+  : Reference<Object>(std::move(other)) {
+}
+
+inline ObjectReference& ObjectReference::operator =(Reference<Object>&& other) {
+  static_cast<Reference<Object>*>(this)->operator=(std::move(other));
+  return *this;
+}
+
+inline ObjectReference::ObjectReference(ObjectReference&& other)
+  : Reference<Object>(std::move(other)) {
+}
+
+inline ObjectReference& ObjectReference::operator =(ObjectReference&& other) {
+  static_cast<Reference<Object>*>(this)->operator=(std::move(other));
+  return *this;
+}
+
+inline ObjectReference::ObjectReference(const ObjectReference& other)
+  : Reference<Object>(other) {
+}
+
+inline MaybeOrValue<Napi::Value> ObjectReference::Get(
+    const char* utf8name) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Napi::Value> result = Value().Get(utf8name);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()));
+  }
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Value();
+  }
+  return scope.Escape(result);
+#endif
+}
+
+inline MaybeOrValue<Napi::Value> ObjectReference::Get(
+    const std::string& utf8name) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Napi::Value> result = Value().Get(utf8name);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()));
+  }
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Value();
+  }
+  return scope.Escape(result);
+#endif
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(const char* utf8name,
+                                               napi_value value) {
+  HandleScope scope(_env);
+  return Value().Set(utf8name, value);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(const char* utf8name,
+                                               Napi::Value value) {
+  HandleScope scope(_env);
+  return Value().Set(utf8name, value);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(const char* utf8name,
+                                               const char* utf8value) {
+  HandleScope scope(_env);
+  return Value().Set(utf8name, utf8value);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(const char* utf8name,
+                                               bool boolValue) {
+  HandleScope scope(_env);
+  return Value().Set(utf8name, boolValue);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(const char* utf8name,
+                                               double numberValue) {
+  HandleScope scope(_env);
+  return Value().Set(utf8name, numberValue);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(const std::string& utf8name,
+                                               napi_value value) {
+  HandleScope scope(_env);
+  return Value().Set(utf8name, value);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(const std::string& utf8name,
+                                               Napi::Value value) {
+  HandleScope scope(_env);
+  return Value().Set(utf8name, value);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(const std::string& utf8name,
+                                               std::string& utf8value) {
+  HandleScope scope(_env);
+  return Value().Set(utf8name, utf8value);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(const std::string& utf8name,
+                                               bool boolValue) {
+  HandleScope scope(_env);
+  return Value().Set(utf8name, boolValue);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(const std::string& utf8name,
+                                               double numberValue) {
+  HandleScope scope(_env);
+  return Value().Set(utf8name, numberValue);
+}
+
+inline MaybeOrValue<Napi::Value> ObjectReference::Get(uint32_t index) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Napi::Value> result = Value().Get(index);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()));
+  }
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Value();
+  }
+  return scope.Escape(result);
+#endif
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(uint32_t index,
+                                               napi_value value) {
+  HandleScope scope(_env);
+  return Value().Set(index, value);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(uint32_t index,
+                                               Napi::Value value) {
+  HandleScope scope(_env);
+  return Value().Set(index, value);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(uint32_t index,
+                                               const char* utf8value) {
+  HandleScope scope(_env);
+  return Value().Set(index, utf8value);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(uint32_t index,
+                                               const std::string& utf8value) {
+  HandleScope scope(_env);
+  return Value().Set(index, utf8value);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(uint32_t index, bool boolValue) {
+  HandleScope scope(_env);
+  return Value().Set(index, boolValue);
+}
+
+inline MaybeOrValue<bool> ObjectReference::Set(uint32_t index,
+                                               double numberValue) {
+  HandleScope scope(_env);
+  return Value().Set(index, numberValue);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// FunctionReference class
+////////////////////////////////////////////////////////////////////////////////
+
+inline FunctionReference::FunctionReference(): Reference<Function>() {
+}
+
+inline FunctionReference::FunctionReference(napi_env env, napi_ref ref)
+  : Reference<Function>(env, ref) {
+}
+
+inline FunctionReference::FunctionReference(Reference<Function>&& other)
+  : Reference<Function>(std::move(other)) {
+}
+
+inline FunctionReference& FunctionReference::operator =(Reference<Function>&& other) {
+  static_cast<Reference<Function>*>(this)->operator=(std::move(other));
+  return *this;
+}
+
+inline FunctionReference::FunctionReference(FunctionReference&& other)
+  : Reference<Function>(std::move(other)) {
+}
+
+inline FunctionReference& FunctionReference::operator =(FunctionReference&& other) {
+  static_cast<Reference<Function>*>(this)->operator=(std::move(other));
+  return *this;
+}
+
+inline MaybeOrValue<Napi::Value> FunctionReference::operator()(
+    const std::initializer_list<napi_value>& args) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Napi::Value> result = Value()(args);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()));
+  }
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Value();
+  }
+  return scope.Escape(result);
+#endif
+}
+
+inline MaybeOrValue<Napi::Value> FunctionReference::Call(
+    const std::initializer_list<napi_value>& args) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Napi::Value> result = Value().Call(args);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()));
+  }
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Value();
+  }
+  return scope.Escape(result);
+#endif
+}
+
+inline MaybeOrValue<Napi::Value> FunctionReference::Call(
+    const std::vector<napi_value>& args) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Napi::Value> result = Value().Call(args);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()));
+  }
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Value();
+  }
+  return scope.Escape(result);
+#endif
+}
+
+inline MaybeOrValue<Napi::Value> FunctionReference::Call(
+    napi_value recv, const std::initializer_list<napi_value>& args) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Napi::Value> result = Value().Call(recv, args);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()));
+  }
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Value();
+  }
+  return scope.Escape(result);
+#endif
+}
+
+inline MaybeOrValue<Napi::Value> FunctionReference::Call(
+    napi_value recv, const std::vector<napi_value>& args) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Napi::Value> result = Value().Call(recv, args);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()));
+  }
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Value();
+  }
+  return scope.Escape(result);
+#endif
+}
+
+inline MaybeOrValue<Napi::Value> FunctionReference::Call(
+    napi_value recv, size_t argc, const napi_value* args) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Napi::Value> result = Value().Call(recv, argc, args);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()));
+  }
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Value();
+  }
+  return scope.Escape(result);
+#endif
+}
+
+inline MaybeOrValue<Napi::Value> FunctionReference::MakeCallback(
+    napi_value recv,
+    const std::initializer_list<napi_value>& args,
+    napi_async_context context) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Napi::Value> result = Value().MakeCallback(recv, args, context);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()));
+  }
+
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Value();
+  }
+  return scope.Escape(result);
+#endif
+}
+
+inline MaybeOrValue<Napi::Value> FunctionReference::MakeCallback(
+    napi_value recv,
+    const std::vector<napi_value>& args,
+    napi_async_context context) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Napi::Value> result = Value().MakeCallback(recv, args, context);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()));
+  }
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Value();
+  }
+  return scope.Escape(result);
+#endif
+}
+
+inline MaybeOrValue<Napi::Value> FunctionReference::MakeCallback(
+    napi_value recv,
+    size_t argc,
+    const napi_value* args,
+    napi_async_context context) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Napi::Value> result =
+      Value().MakeCallback(recv, argc, args, context);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()));
+  }
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Value();
+  }
+  return scope.Escape(result);
+#endif
+}
+
+inline MaybeOrValue<Object> FunctionReference::New(
+    const std::initializer_list<napi_value>& args) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Object> result = Value().New(args);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()).As<Object>());
+  }
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Object();
+  }
+  return scope.Escape(result).As<Object>();
+#endif
+}
+
+inline MaybeOrValue<Object> FunctionReference::New(
+    const std::vector<napi_value>& args) const {
+  EscapableHandleScope scope(_env);
+  MaybeOrValue<Object> result = Value().New(args);
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+  if (result.IsJust()) {
+    return Just(scope.Escape(result.Unwrap()).As<Object>());
+  }
+  return result;
+#else
+  if (scope.Env().IsExceptionPending()) {
+    return Object();
+  }
+  return scope.Escape(result).As<Object>();
+#endif
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// CallbackInfo class
+////////////////////////////////////////////////////////////////////////////////
+
+inline CallbackInfo::CallbackInfo(napi_env env, napi_callback_info info)
+    : _env(env), _info(info), _this(nullptr), _dynamicArgs(nullptr), _data(nullptr) {
+  _argc = _staticArgCount;
+  _argv = _staticArgs;
+  napi_status status = napi_get_cb_info(env, info, &_argc, _argv, &_this, &_data);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+
+  if (_argc > _staticArgCount) {
+    // Use either a fixed-size array (on the stack) or a dynamically-allocated
+    // array (on the heap) depending on the number of args.
+    _dynamicArgs = new napi_value[_argc];
+    _argv = _dynamicArgs;
+
+    status = napi_get_cb_info(env, info, &_argc, _argv, nullptr, nullptr);
+    NAPI_THROW_IF_FAILED_VOID(_env, status);
+  }
+}
+
+inline CallbackInfo::~CallbackInfo() {
+  if (_dynamicArgs != nullptr) {
+    delete[] _dynamicArgs;
+  }
+}
+
+inline Value CallbackInfo::NewTarget() const {
+  napi_value newTarget;
+  napi_status status = napi_get_new_target(_env, _info, &newTarget);
+  NAPI_THROW_IF_FAILED(_env, status, Value());
+  return Value(_env, newTarget);
+}
+
+inline bool CallbackInfo::IsConstructCall() const {
+  return !NewTarget().IsEmpty();
+}
+
+inline Napi::Env CallbackInfo::Env() const {
+  return Napi::Env(_env);
+}
+
+inline size_t CallbackInfo::Length() const {
+  return _argc;
+}
+
+inline const Value CallbackInfo::operator [](size_t index) const {
+  return index < _argc ? Value(_env, _argv[index]) : Env().Undefined();
+}
+
+inline Value CallbackInfo::This() const {
+  if (_this == nullptr) {
+    return Env().Undefined();
+  }
+  return Object(_env, _this);
+}
+
+inline void* CallbackInfo::Data() const {
+  return _data;
+}
+
+inline void CallbackInfo::SetData(void* data) {
+  _data = data;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// PropertyDescriptor class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename PropertyDescriptor::GetterCallback Getter>
+PropertyDescriptor
+PropertyDescriptor::Accessor(const char* utf8name,
+                             napi_property_attributes attributes,
+                             void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+
+  desc.utf8name = utf8name;
+  desc.getter = details::TemplatedCallback<Getter>;
+  desc.attributes = attributes;
+  desc.data = data;
+
+  return desc;
+}
+
+template <typename PropertyDescriptor::GetterCallback Getter>
+PropertyDescriptor
+PropertyDescriptor::Accessor(const std::string& utf8name,
+                             napi_property_attributes attributes,
+                             void* data) {
+  return Accessor<Getter>(utf8name.c_str(), attributes, data);
+}
+
+template <typename PropertyDescriptor::GetterCallback Getter>
+PropertyDescriptor
+PropertyDescriptor::Accessor(Name name,
+                             napi_property_attributes attributes,
+                             void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+
+  desc.name = name;
+  desc.getter = details::TemplatedCallback<Getter>;
+  desc.attributes = attributes;
+  desc.data = data;
+
+  return desc;
+}
+
+template <
+typename PropertyDescriptor::GetterCallback Getter,
+typename PropertyDescriptor::SetterCallback Setter>
+PropertyDescriptor
+PropertyDescriptor::Accessor(const char* utf8name,
+                             napi_property_attributes attributes,
+                             void* data) {
+
+  napi_property_descriptor desc = napi_property_descriptor();
+
+  desc.utf8name = utf8name;
+  desc.getter = details::TemplatedCallback<Getter>;
+  desc.setter = details::TemplatedVoidCallback<Setter>;
+  desc.attributes = attributes;
+  desc.data = data;
+
+  return desc;
+}
+
+template <
+typename PropertyDescriptor::GetterCallback Getter,
+typename PropertyDescriptor::SetterCallback Setter>
+PropertyDescriptor
+PropertyDescriptor::Accessor(const std::string& utf8name,
+                             napi_property_attributes attributes,
+                             void* data) {
+  return Accessor<Getter, Setter>(utf8name.c_str(), attributes, data);
+}
+
+template <
+typename PropertyDescriptor::GetterCallback Getter,
+typename PropertyDescriptor::SetterCallback Setter>
+PropertyDescriptor
+PropertyDescriptor::Accessor(Name name,
+                             napi_property_attributes attributes,
+                             void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+
+  desc.name = name;
+  desc.getter = details::TemplatedCallback<Getter>;
+  desc.setter = details::TemplatedVoidCallback<Setter>;
+  desc.attributes = attributes;
+  desc.data = data;
+
+  return desc;
+}
+
+template <typename Getter>
+inline PropertyDescriptor
+PropertyDescriptor::Accessor(Napi::Env env,
+                             Napi::Object object,
+                             const char* utf8name,
+                             Getter getter,
+                             napi_property_attributes attributes,
+                             void* data) {
+  using CbData = details::CallbackData<Getter, Napi::Value>;
+  auto callbackData = new CbData({ getter, data });
+
+  napi_status status = AttachData(env, object, callbackData);
+  if (status != napi_ok) {
+    delete callbackData;
+    NAPI_THROW_IF_FAILED(env, status, napi_property_descriptor());
+  }
+
+  return PropertyDescriptor({
+    utf8name,
+    nullptr,
+    nullptr,
+    CbData::Wrapper,
+    nullptr,
+    nullptr,
+    attributes,
+    callbackData
+  });
+}
+
+template <typename Getter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Napi::Env env,
+                                                       Napi::Object object,
+                                                       const std::string& utf8name,
+                                                       Getter getter,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  return Accessor(env, object, utf8name.c_str(), getter, attributes, data);
+}
+
+template <typename Getter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Napi::Env env,
+                                                       Napi::Object object,
+                                                       Name name,
+                                                       Getter getter,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  using CbData = details::CallbackData<Getter, Napi::Value>;
+  auto callbackData = new CbData({ getter, data });
+
+  napi_status status = AttachData(env, object, callbackData);
+  if (status != napi_ok) {
+    delete callbackData;
+    NAPI_THROW_IF_FAILED(env, status, napi_property_descriptor());
+  }
+
+  return PropertyDescriptor({
+    nullptr,
+    name,
+    nullptr,
+    CbData::Wrapper,
+    nullptr,
+    nullptr,
+    attributes,
+    callbackData
+  });
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Napi::Env env,
+                                                       Napi::Object object,
+                                                       const char* utf8name,
+                                                       Getter getter,
+                                                       Setter setter,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  using CbData = details::AccessorCallbackData<Getter, Setter>;
+  auto callbackData = new CbData({ getter, setter, data });
+
+  napi_status status = AttachData(env, object, callbackData);
+  if (status != napi_ok) {
+    delete callbackData;
+    NAPI_THROW_IF_FAILED(env, status, napi_property_descriptor());
+  }
+
+  return PropertyDescriptor({
+    utf8name,
+    nullptr,
+    nullptr,
+    CbData::GetterWrapper,
+    CbData::SetterWrapper,
+    nullptr,
+    attributes,
+    callbackData
+  });
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Napi::Env env,
+                                                       Napi::Object object,
+                                                       const std::string& utf8name,
+                                                       Getter getter,
+                                                       Setter setter,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  return Accessor(env, object, utf8name.c_str(), getter, setter, attributes, data);
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Napi::Env env,
+                                                       Napi::Object object,
+                                                       Name name,
+                                                       Getter getter,
+                                                       Setter setter,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  using CbData = details::AccessorCallbackData<Getter, Setter>;
+  auto callbackData = new CbData({ getter, setter, data });
+
+  napi_status status = AttachData(env, object, callbackData);
+  if (status != napi_ok) {
+    delete callbackData;
+    NAPI_THROW_IF_FAILED(env, status, napi_property_descriptor());
+  }
+
+  return PropertyDescriptor({
+    nullptr,
+    name,
+    nullptr,
+    CbData::GetterWrapper,
+    CbData::SetterWrapper,
+    nullptr,
+    attributes,
+    callbackData
+  });
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(Napi::Env env,
+                                                       Napi::Object /*object*/,
+                                                       const char* utf8name,
+                                                       Callable cb,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  return PropertyDescriptor({
+    utf8name,
+    nullptr,
+    nullptr,
+    nullptr,
+    nullptr,
+    Napi::Function::New(env, cb, utf8name, data),
+    attributes,
+    nullptr
+  });
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(Napi::Env env,
+                                                       Napi::Object object,
+                                                       const std::string& utf8name,
+                                                       Callable cb,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  return Function(env, object, utf8name.c_str(), cb, attributes, data);
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(Napi::Env env,
+                                                       Napi::Object /*object*/,
+                                                       Name name,
+                                                       Callable cb,
+                                                       napi_property_attributes attributes,
+                                                       void* data) {
+  return PropertyDescriptor({
+    nullptr,
+    name,
+    nullptr,
+    nullptr,
+    nullptr,
+    Napi::Function::New(env, cb, nullptr, data),
+    attributes,
+    nullptr
+  });
+}
+
+inline PropertyDescriptor PropertyDescriptor::Value(const char* utf8name,
+                                                    napi_value value,
+                                                    napi_property_attributes attributes) {
+  return PropertyDescriptor({
+    utf8name, nullptr, nullptr, nullptr, nullptr, value, attributes, nullptr
+  });
+}
+
+inline PropertyDescriptor PropertyDescriptor::Value(const std::string& utf8name,
+                                                    napi_value value,
+                                                    napi_property_attributes attributes) {
+  return Value(utf8name.c_str(), value, attributes);
+}
+
+inline PropertyDescriptor PropertyDescriptor::Value(napi_value name,
+                                                    napi_value value,
+                                                    napi_property_attributes attributes) {
+  return PropertyDescriptor({
+    nullptr, name, nullptr, nullptr, nullptr, value, attributes, nullptr
+  });
+}
+
+inline PropertyDescriptor PropertyDescriptor::Value(Name name,
+                                                    Napi::Value value,
+                                                    napi_property_attributes attributes) {
+  napi_value nameValue = name;
+  napi_value valueValue = value;
+  return PropertyDescriptor::Value(nameValue, valueValue, attributes);
+}
+
+inline PropertyDescriptor::PropertyDescriptor(napi_property_descriptor desc)
+  : _desc(desc) {
+}
+
+inline PropertyDescriptor::operator napi_property_descriptor&() {
+  return _desc;
+}
+
+inline PropertyDescriptor::operator const napi_property_descriptor&() const {
+  return _desc;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// InstanceWrap<T> class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline void InstanceWrap<T>::AttachPropData(napi_env env,
+                                       napi_value value,
+                                       const napi_property_descriptor* prop) {
+  napi_status status;
+  if (!(prop->attributes & napi_static)) {
+    if (prop->method == T::InstanceVoidMethodCallbackWrapper) {
+      status = Napi::details::AttachData(env,
+                    value,
+                    static_cast<InstanceVoidMethodCallbackData*>(prop->data));
+      NAPI_THROW_IF_FAILED_VOID(env, status);
+    } else if (prop->method == T::InstanceMethodCallbackWrapper) {
+      status = Napi::details::AttachData(env,
+                        value,
+                        static_cast<InstanceMethodCallbackData*>(prop->data));
+      NAPI_THROW_IF_FAILED_VOID(env, status);
+    } else if (prop->getter == T::InstanceGetterCallbackWrapper ||
+        prop->setter == T::InstanceSetterCallbackWrapper) {
+      status = Napi::details::AttachData(env,
+                          value,
+                          static_cast<InstanceAccessorCallbackData*>(prop->data));
+      NAPI_THROW_IF_FAILED_VOID(env, status);
+    }
+  }
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+    const char* utf8name,
+    InstanceVoidMethodCallback method,
+    napi_property_attributes attributes,
+    void* data) {
+  InstanceVoidMethodCallbackData* callbackData =
+    new InstanceVoidMethodCallbackData({ method, data});
+
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.method = T::InstanceVoidMethodCallbackWrapper;
+  desc.data = callbackData;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+    const char* utf8name,
+    InstanceMethodCallback method,
+    napi_property_attributes attributes,
+    void* data) {
+  InstanceMethodCallbackData* callbackData = new InstanceMethodCallbackData({ method, data });
+
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.method = T::InstanceMethodCallbackWrapper;
+  desc.data = callbackData;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+    Symbol name,
+    InstanceVoidMethodCallback method,
+    napi_property_attributes attributes,
+    void* data) {
+  InstanceVoidMethodCallbackData* callbackData =
+    new InstanceVoidMethodCallbackData({ method, data});
+
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.method = T::InstanceVoidMethodCallbackWrapper;
+  desc.data = callbackData;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+    Symbol name,
+    InstanceMethodCallback method,
+    napi_property_attributes attributes,
+    void* data) {
+  InstanceMethodCallbackData* callbackData = new InstanceMethodCallbackData({ method, data });
+
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.method = T::InstanceMethodCallbackWrapper;
+  desc.data = callbackData;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceVoidMethodCallback method>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+    const char* utf8name,
+    napi_property_attributes attributes,
+    void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.method = details::TemplatedInstanceVoidCallback<T, method>;
+  desc.data = data;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceMethodCallback method>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+    const char* utf8name,
+    napi_property_attributes attributes,
+    void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.method = details::TemplatedInstanceCallback<T, method>;
+  desc.data = data;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceVoidMethodCallback method>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+    Symbol name,
+    napi_property_attributes attributes,
+    void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.method = details::TemplatedInstanceVoidCallback<T, method>;
+  desc.data = data;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceMethodCallback method>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+    Symbol name,
+    napi_property_attributes attributes,
+    void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.method = details::TemplatedInstanceCallback<T, method>;
+  desc.data = data;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceAccessor(
+    const char* utf8name,
+    InstanceGetterCallback getter,
+    InstanceSetterCallback setter,
+    napi_property_attributes attributes,
+    void* data) {
+  InstanceAccessorCallbackData* callbackData =
+    new InstanceAccessorCallbackData({ getter, setter, data });
+
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.getter = getter != nullptr ? T::InstanceGetterCallbackWrapper : nullptr;
+  desc.setter = setter != nullptr ? T::InstanceSetterCallbackWrapper : nullptr;
+  desc.data = callbackData;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceAccessor(
+    Symbol name,
+    InstanceGetterCallback getter,
+    InstanceSetterCallback setter,
+    napi_property_attributes attributes,
+    void* data) {
+  InstanceAccessorCallbackData* callbackData =
+    new InstanceAccessorCallbackData({ getter, setter, data });
+
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.getter = getter != nullptr ? T::InstanceGetterCallbackWrapper : nullptr;
+  desc.setter = setter != nullptr ? T::InstanceSetterCallbackWrapper : nullptr;
+  desc.data = callbackData;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceGetterCallback getter,
+          typename InstanceWrap<T>::InstanceSetterCallback setter>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceAccessor(
+    const char* utf8name,
+    napi_property_attributes attributes,
+    void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.getter = details::TemplatedInstanceCallback<T, getter>;
+  desc.setter = This::WrapSetter(This::SetterTag<setter>());
+  desc.data = data;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceGetterCallback getter,
+          typename InstanceWrap<T>::InstanceSetterCallback setter>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceAccessor(
+    Symbol name,
+    napi_property_attributes attributes,
+    void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.getter = details::TemplatedInstanceCallback<T, getter>;
+  desc.setter = This::WrapSetter(This::SetterTag<setter>());
+  desc.data = data;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceValue(
+    const char* utf8name,
+    Napi::Value value,
+    napi_property_attributes attributes) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.value = value;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceValue(
+    Symbol name,
+    Napi::Value value,
+    napi_property_attributes attributes) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.value = value;
+  desc.attributes = attributes;
+  return desc;
+}
+
+template <typename T>
+inline napi_value InstanceWrap<T>::InstanceVoidMethodCallbackWrapper(
+    napi_env env,
+    napi_callback_info info) {
+  return details::WrapCallback([&] {
+    CallbackInfo callbackInfo(env, info);
+    InstanceVoidMethodCallbackData* callbackData =
+      reinterpret_cast<InstanceVoidMethodCallbackData*>(callbackInfo.Data());
+    callbackInfo.SetData(callbackData->data);
+    T* instance = T::Unwrap(callbackInfo.This().As<Object>());
+    auto cb = callbackData->callback;
+    (instance->*cb)(callbackInfo);
+    return nullptr;
+  });
+}
+
+template <typename T>
+inline napi_value InstanceWrap<T>::InstanceMethodCallbackWrapper(
+    napi_env env,
+    napi_callback_info info) {
+  return details::WrapCallback([&] {
+    CallbackInfo callbackInfo(env, info);
+    InstanceMethodCallbackData* callbackData =
+      reinterpret_cast<InstanceMethodCallbackData*>(callbackInfo.Data());
+    callbackInfo.SetData(callbackData->data);
+    T* instance = T::Unwrap(callbackInfo.This().As<Object>());
+    auto cb = callbackData->callback;
+    return (instance->*cb)(callbackInfo);
+  });
+}
+
+template <typename T>
+inline napi_value InstanceWrap<T>::InstanceGetterCallbackWrapper(
+    napi_env env,
+    napi_callback_info info) {
+  return details::WrapCallback([&] {
+    CallbackInfo callbackInfo(env, info);
+    InstanceAccessorCallbackData* callbackData =
+      reinterpret_cast<InstanceAccessorCallbackData*>(callbackInfo.Data());
+    callbackInfo.SetData(callbackData->data);
+    T* instance = T::Unwrap(callbackInfo.This().As<Object>());
+    auto cb = callbackData->getterCallback;
+    return (instance->*cb)(callbackInfo);
+  });
+}
+
+template <typename T>
+inline napi_value InstanceWrap<T>::InstanceSetterCallbackWrapper(
+    napi_env env,
+    napi_callback_info info) {
+  return details::WrapCallback([&] {
+    CallbackInfo callbackInfo(env, info);
+    InstanceAccessorCallbackData* callbackData =
+      reinterpret_cast<InstanceAccessorCallbackData*>(callbackInfo.Data());
+    callbackInfo.SetData(callbackData->data);
+    T* instance = T::Unwrap(callbackInfo.This().As<Object>());
+    auto cb = callbackData->setterCallback;
+    (instance->*cb)(callbackInfo, callbackInfo[0]);
+    return nullptr;
+  });
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceSetterCallback method>
+inline napi_value InstanceWrap<T>::WrappedMethod(
+    napi_env env, napi_callback_info info) NAPI_NOEXCEPT {
+  return details::WrapCallback([&] {
+    const CallbackInfo cbInfo(env, info);
+    T* instance = T::Unwrap(cbInfo.This().As<Object>());
+    (instance->*method)(cbInfo, cbInfo[0]);
+    return nullptr;
+  });
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ObjectWrap<T> class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline ObjectWrap<T>::ObjectWrap(const Napi::CallbackInfo& callbackInfo) {
+  napi_env env = callbackInfo.Env();
+  napi_value wrapper = callbackInfo.This();
+  napi_status status;
+  napi_ref ref;
+  T* instance = static_cast<T*>(this);
+  status = napi_wrap(env, wrapper, instance, FinalizeCallback, nullptr, &ref);
+  NAPI_THROW_IF_FAILED_VOID(env, status);
+
+  Reference<Object>* instanceRef = instance;
+  *instanceRef = Reference<Object>(env, ref);
+}
+
+template <typename T>
+inline ObjectWrap<T>::~ObjectWrap() {
+  // If the JS object still exists at this point, remove the finalizer added
+  // through `napi_wrap()`.
+  if (!IsEmpty()) {
+    Object object = Value();
+    // It is not valid to call `napi_remove_wrap()` with an empty `object`.
+    // This happens e.g. during garbage collection.
+    if (!object.IsEmpty() && _construction_failed) {
+      napi_remove_wrap(Env(), object, nullptr);
+    }
+  }
+}
+
+template<typename T>
+inline T* ObjectWrap<T>::Unwrap(Object wrapper) {
+  void* unwrapped;
+  napi_status status = napi_unwrap(wrapper.Env(), wrapper, &unwrapped);
+  NAPI_THROW_IF_FAILED(wrapper.Env(), status, nullptr);
+  return static_cast<T*>(unwrapped);
+}
+
+template <typename T>
+inline Function
+ObjectWrap<T>::DefineClass(Napi::Env env,
+                           const char* utf8name,
+                           const size_t props_count,
+                           const napi_property_descriptor* descriptors,
+                           void* data) {
+  napi_status status;
+  std::vector<napi_property_descriptor> props(props_count);
+
+  // We copy the descriptors to a local array because before defining the class
+  // we must replace static method property descriptors with value property
+  // descriptors such that the value is a function-valued `napi_value` created
+  // with `CreateFunction()`.
+  //
+  // This replacement could be made for instance methods as well, but V8 aborts
+  // if we do that, because it expects methods defined on the prototype template
+  // to have `FunctionTemplate`s.
+  for (size_t index = 0; index < props_count; index++) {
+    props[index] = descriptors[index];
+    napi_property_descriptor* prop = &props[index];
+    if (prop->method == T::StaticMethodCallbackWrapper) {
+      status = CreateFunction(env,
+                             utf8name,
+                             prop->method,
+                             static_cast<StaticMethodCallbackData*>(prop->data),
+               &(prop->value));
+      NAPI_THROW_IF_FAILED(env, status, Function());
+      prop->method = nullptr;
+      prop->data = nullptr;
+    } else if (prop->method == T::StaticVoidMethodCallbackWrapper) {
+      status = CreateFunction(env,
+                         utf8name,
+                         prop->method,
+                         static_cast<StaticVoidMethodCallbackData*>(prop->data),
+                         &(prop->value));
+      NAPI_THROW_IF_FAILED(env, status, Function());
+      prop->method = nullptr;
+      prop->data = nullptr;
+    }
+  }
+
+  napi_value value;
+  status = napi_define_class(env,
+                             utf8name,
+                             NAPI_AUTO_LENGTH,
+                             T::ConstructorCallbackWrapper,
+                             data,
+                             props_count,
+                             props.data(),
+                             &value);
+  NAPI_THROW_IF_FAILED(env, status, Function());
+
+  // After defining the class we iterate once more over the property descriptors
+  // and attach the data associated with accessors and instance methods to the
+  // newly created JavaScript class.
+  for (size_t idx = 0; idx < props_count; idx++) {
+    const napi_property_descriptor* prop = &props[idx];
+
+    if (prop->getter == T::StaticGetterCallbackWrapper ||
+        prop->setter == T::StaticSetterCallbackWrapper) {
+      status = Napi::details::AttachData(env,
+                          value,
+                          static_cast<StaticAccessorCallbackData*>(prop->data));
+      NAPI_THROW_IF_FAILED(env, status, Function());
+    } else {
+      // InstanceWrap<T>::AttachPropData is responsible for attaching the data
+      // of instance methods and accessors.
+      T::AttachPropData(env, value, prop);
+    }
+  }
+
+  return Function(env, value);
+}
+
+template <typename T>
+inline Function ObjectWrap<T>::DefineClass(
+    Napi::Env env,
+    const char* utf8name,
+    const std::initializer_list<ClassPropertyDescriptor<T>>& properties,
+    void* data) {
+  return DefineClass(env,
+          utf8name,
+          properties.size(),
+          reinterpret_cast<const napi_property_descriptor*>(properties.begin()),
+          data);
+}
+
+template <typename T>
+inline Function ObjectWrap<T>::DefineClass(
+    Napi::Env env,
+    const char* utf8name,
+    const std::vector<ClassPropertyDescriptor<T>>& properties,
+    void* data) {
+  return DefineClass(env,
+           utf8name,
+           properties.size(),
+           reinterpret_cast<const napi_property_descriptor*>(properties.data()),
+           data);
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+    const char* utf8name,
+    StaticVoidMethodCallback method,
+    napi_property_attributes attributes,
+    void* data) {
+  StaticVoidMethodCallbackData* callbackData = new StaticVoidMethodCallbackData({ method, data });
+
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.method = T::StaticVoidMethodCallbackWrapper;
+  desc.data = callbackData;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+    const char* utf8name,
+    StaticMethodCallback method,
+    napi_property_attributes attributes,
+    void* data) {
+  StaticMethodCallbackData* callbackData = new StaticMethodCallbackData({ method, data });
+
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.method = T::StaticMethodCallbackWrapper;
+  desc.data = callbackData;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+    Symbol name,
+    StaticVoidMethodCallback method,
+    napi_property_attributes attributes,
+    void* data) {
+  StaticVoidMethodCallbackData* callbackData = new StaticVoidMethodCallbackData({ method, data });
+
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.method = T::StaticVoidMethodCallbackWrapper;
+  desc.data = callbackData;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+    Symbol name,
+    StaticMethodCallback method,
+    napi_property_attributes attributes,
+    void* data) {
+  StaticMethodCallbackData* callbackData = new StaticMethodCallbackData({ method, data });
+
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.method = T::StaticMethodCallbackWrapper;
+  desc.data = callbackData;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticVoidMethodCallback method>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+    const char* utf8name,
+    napi_property_attributes attributes,
+    void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.method = details::TemplatedVoidCallback<method>;
+  desc.data = data;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticVoidMethodCallback method>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+    Symbol name,
+    napi_property_attributes attributes,
+    void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.method = details::TemplatedVoidCallback<method>;
+  desc.data = data;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticMethodCallback method>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+    const char* utf8name,
+    napi_property_attributes attributes,
+    void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.method = details::TemplatedCallback<method>;
+  desc.data = data;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticMethodCallback method>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+    Symbol name,
+    napi_property_attributes attributes,
+    void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.method = details::TemplatedCallback<method>;
+  desc.data = data;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticAccessor(
+    const char* utf8name,
+    StaticGetterCallback getter,
+    StaticSetterCallback setter,
+    napi_property_attributes attributes,
+    void* data) {
+  StaticAccessorCallbackData* callbackData =
+    new StaticAccessorCallbackData({ getter, setter, data });
+
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.getter = getter != nullptr ? T::StaticGetterCallbackWrapper : nullptr;
+  desc.setter = setter != nullptr ? T::StaticSetterCallbackWrapper : nullptr;
+  desc.data = callbackData;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticAccessor(
+    Symbol name,
+    StaticGetterCallback getter,
+    StaticSetterCallback setter,
+    napi_property_attributes attributes,
+    void* data) {
+  StaticAccessorCallbackData* callbackData =
+    new StaticAccessorCallbackData({ getter, setter, data });
+
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.getter = getter != nullptr ? T::StaticGetterCallbackWrapper : nullptr;
+  desc.setter = setter != nullptr ? T::StaticSetterCallbackWrapper : nullptr;
+  desc.data = callbackData;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticGetterCallback getter,
+          typename ObjectWrap<T>::StaticSetterCallback setter>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticAccessor(
+    const char* utf8name,
+    napi_property_attributes attributes,
+    void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.getter = details::TemplatedCallback<getter>;
+  desc.setter = This::WrapStaticSetter(This::StaticSetterTag<setter>());
+  desc.data = data;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticGetterCallback getter,
+          typename ObjectWrap<T>::StaticSetterCallback setter>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticAccessor(
+    Symbol name,
+    napi_property_attributes attributes,
+    void* data) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.getter = details::TemplatedCallback<getter>;
+  desc.setter = This::WrapStaticSetter(This::StaticSetterTag<setter>());
+  desc.data = data;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticValue(const char* utf8name,
+    Napi::Value value, napi_property_attributes attributes) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.utf8name = utf8name;
+  desc.value = value;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticValue(Symbol name,
+    Napi::Value value, napi_property_attributes attributes) {
+  napi_property_descriptor desc = napi_property_descriptor();
+  desc.name = name;
+  desc.value = value;
+  desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+  return desc;
+}
+
+template <typename T>
+inline void ObjectWrap<T>::Finalize(Napi::Env /*env*/) {}
+
+template <typename T>
+inline napi_value ObjectWrap<T>::ConstructorCallbackWrapper(
+    napi_env env,
+    napi_callback_info info) {
+  napi_value new_target;
+  napi_status status = napi_get_new_target(env, info, &new_target);
+  if (status != napi_ok) return nullptr;
+
+  bool isConstructCall = (new_target != nullptr);
+  if (!isConstructCall) {
+    napi_throw_type_error(env, nullptr, "Class constructors cannot be invoked without 'new'");
+    return nullptr;
+  }
+
+  napi_value wrapper = details::WrapCallback([&] {
+    CallbackInfo callbackInfo(env, info);
+    T* instance = new T(callbackInfo);
+#ifdef NAPI_CPP_EXCEPTIONS
+    instance->_construction_failed = false;
+#else
+    if (callbackInfo.Env().IsExceptionPending()) {
+      // We need to clear the exception so that removing the wrap might work.
+      Error e = callbackInfo.Env().GetAndClearPendingException();
+      delete instance;
+      e.ThrowAsJavaScriptException();
+    } else {
+      instance->_construction_failed = false;
+    }
+# endif  // NAPI_CPP_EXCEPTIONS
+    return callbackInfo.This();
+  });
+
+  return wrapper;
+}
+
+template <typename T>
+inline napi_value ObjectWrap<T>::StaticVoidMethodCallbackWrapper(
+    napi_env env,
+    napi_callback_info info) {
+  return details::WrapCallback([&] {
+    CallbackInfo callbackInfo(env, info);
+    StaticVoidMethodCallbackData* callbackData =
+      reinterpret_cast<StaticVoidMethodCallbackData*>(callbackInfo.Data());
+    callbackInfo.SetData(callbackData->data);
+    callbackData->callback(callbackInfo);
+    return nullptr;
+  });
+}
+
+template <typename T>
+inline napi_value ObjectWrap<T>::StaticMethodCallbackWrapper(
+    napi_env env,
+    napi_callback_info info) {
+  return details::WrapCallback([&] {
+    CallbackInfo callbackInfo(env, info);
+    StaticMethodCallbackData* callbackData =
+      reinterpret_cast<StaticMethodCallbackData*>(callbackInfo.Data());
+    callbackInfo.SetData(callbackData->data);
+    return callbackData->callback(callbackInfo);
+  });
+}
+
+template <typename T>
+inline napi_value ObjectWrap<T>::StaticGetterCallbackWrapper(
+    napi_env env,
+    napi_callback_info info) {
+  return details::WrapCallback([&] {
+    CallbackInfo callbackInfo(env, info);
+    StaticAccessorCallbackData* callbackData =
+      reinterpret_cast<StaticAccessorCallbackData*>(callbackInfo.Data());
+    callbackInfo.SetData(callbackData->data);
+    return callbackData->getterCallback(callbackInfo);
+  });
+}
+
+template <typename T>
+inline napi_value ObjectWrap<T>::StaticSetterCallbackWrapper(
+    napi_env env,
+    napi_callback_info info) {
+  return details::WrapCallback([&] {
+    CallbackInfo callbackInfo(env, info);
+    StaticAccessorCallbackData* callbackData =
+      reinterpret_cast<StaticAccessorCallbackData*>(callbackInfo.Data());
+    callbackInfo.SetData(callbackData->data);
+    callbackData->setterCallback(callbackInfo, callbackInfo[0]);
+    return nullptr;
+  });
+}
+
+template <typename T>
+inline void ObjectWrap<T>::FinalizeCallback(napi_env env, void* data, void* /*hint*/) {
+  HandleScope scope(env);
+  T* instance = static_cast<T*>(data);
+  instance->Finalize(Napi::Env(env));
+  delete instance;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticSetterCallback method>
+inline napi_value ObjectWrap<T>::WrappedMethod(
+    napi_env env, napi_callback_info info) NAPI_NOEXCEPT {
+  return details::WrapCallback([&] {
+    const CallbackInfo cbInfo(env, info);
+    method(cbInfo, cbInfo[0]);
+    return nullptr;
+  });
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// HandleScope class
+////////////////////////////////////////////////////////////////////////////////
+
+inline HandleScope::HandleScope(napi_env env, napi_handle_scope scope)
+    : _env(env), _scope(scope) {
+}
+
+inline HandleScope::HandleScope(Napi::Env env) : _env(env) {
+  napi_status status = napi_open_handle_scope(_env, &_scope);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline HandleScope::~HandleScope() {
+  napi_status status = napi_close_handle_scope(_env, _scope);
+  NAPI_FATAL_IF_FAILED(status,
+                       "HandleScope::~HandleScope",
+                       "napi_close_handle_scope");
+}
+
+inline HandleScope::operator napi_handle_scope() const {
+  return _scope;
+}
+
+inline Napi::Env HandleScope::Env() const {
+  return Napi::Env(_env);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// EscapableHandleScope class
+////////////////////////////////////////////////////////////////////////////////
+
+inline EscapableHandleScope::EscapableHandleScope(
+  napi_env env, napi_escapable_handle_scope scope) : _env(env), _scope(scope) {
+}
+
+inline EscapableHandleScope::EscapableHandleScope(Napi::Env env) : _env(env) {
+  napi_status status = napi_open_escapable_handle_scope(_env, &_scope);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline EscapableHandleScope::~EscapableHandleScope() {
+  napi_status status = napi_close_escapable_handle_scope(_env, _scope);
+  NAPI_FATAL_IF_FAILED(status,
+                       "EscapableHandleScope::~EscapableHandleScope",
+                       "napi_close_escapable_handle_scope");
+}
+
+inline EscapableHandleScope::operator napi_escapable_handle_scope() const {
+  return _scope;
+}
+
+inline Napi::Env EscapableHandleScope::Env() const {
+  return Napi::Env(_env);
+}
+
+inline Value EscapableHandleScope::Escape(napi_value escapee) {
+  napi_value result;
+  napi_status status = napi_escape_handle(_env, _scope, escapee, &result);
+  NAPI_THROW_IF_FAILED(_env, status, Value());
+  return Value(_env, result);
+}
+
+
+#if (NAPI_VERSION > 2)
+////////////////////////////////////////////////////////////////////////////////
+// CallbackScope class
+////////////////////////////////////////////////////////////////////////////////
+
+inline CallbackScope::CallbackScope(
+  napi_env env, napi_callback_scope scope) : _env(env), _scope(scope) {
+}
+
+inline CallbackScope::CallbackScope(napi_env env, napi_async_context context)
+    : _env(env) {
+  napi_status status = napi_open_callback_scope(
+      _env, Object::New(env), context, &_scope);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline CallbackScope::~CallbackScope() {
+  napi_status status = napi_close_callback_scope(_env, _scope);
+  NAPI_FATAL_IF_FAILED(status,
+                       "CallbackScope::~CallbackScope",
+                       "napi_close_callback_scope");
+}
+
+inline CallbackScope::operator napi_callback_scope() const {
+  return _scope;
+}
+
+inline Napi::Env CallbackScope::Env() const {
+  return Napi::Env(_env);
+}
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+// AsyncContext class
+////////////////////////////////////////////////////////////////////////////////
+
+inline AsyncContext::AsyncContext(napi_env env, const char* resource_name)
+  : AsyncContext(env, resource_name, Object::New(env)) {
+}
+
+inline AsyncContext::AsyncContext(napi_env env,
+                                  const char* resource_name,
+                                  const Object& resource)
+    : _env(env), _context(nullptr) {
+  napi_value resource_id;
+  napi_status status = napi_create_string_utf8(
+      _env, resource_name, NAPI_AUTO_LENGTH, &resource_id);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+
+  status = napi_async_init(_env, resource, resource_id, &_context);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline AsyncContext::~AsyncContext() {
+  if (_context != nullptr) {
+    napi_async_destroy(_env, _context);
+    _context = nullptr;
+  }
+}
+
+inline AsyncContext::AsyncContext(AsyncContext&& other) {
+  _env = other._env;
+  other._env = nullptr;
+  _context = other._context;
+  other._context = nullptr;
+}
+
+inline AsyncContext& AsyncContext::operator =(AsyncContext&& other) {
+  _env = other._env;
+  other._env = nullptr;
+  _context = other._context;
+  other._context = nullptr;
+  return *this;
+}
+
+inline AsyncContext::operator napi_async_context() const {
+  return _context;
+}
+
+inline Napi::Env AsyncContext::Env() const {
+  return Napi::Env(_env);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// AsyncWorker class
+////////////////////////////////////////////////////////////////////////////////
+
+inline AsyncWorker::AsyncWorker(const Function& callback)
+  : AsyncWorker(callback, "generic") {
+}
+
+inline AsyncWorker::AsyncWorker(const Function& callback,
+                                const char* resource_name)
+  : AsyncWorker(callback, resource_name, Object::New(callback.Env())) {
+}
+
+inline AsyncWorker::AsyncWorker(const Function& callback,
+                                const char* resource_name,
+                                const Object& resource)
+  : AsyncWorker(Object::New(callback.Env()),
+                callback,
+                resource_name,
+                resource) {
+}
+
+inline AsyncWorker::AsyncWorker(const Object& receiver,
+                                const Function& callback)
+  : AsyncWorker(receiver, callback, "generic") {
+}
+
+inline AsyncWorker::AsyncWorker(const Object& receiver,
+                                const Function& callback,
+                                const char* resource_name)
+  : AsyncWorker(receiver,
+                callback,
+                resource_name,
+                Object::New(callback.Env())) {
+}
+
+inline AsyncWorker::AsyncWorker(const Object& receiver,
+                                const Function& callback,
+                                const char* resource_name,
+                                const Object& resource)
+  : _env(callback.Env()),
+    _receiver(Napi::Persistent(receiver)),
+    _callback(Napi::Persistent(callback)),
+    _suppress_destruct(false) {
+  napi_value resource_id;
+  napi_status status = napi_create_string_latin1(
+      _env, resource_name, NAPI_AUTO_LENGTH, &resource_id);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+
+  status = napi_create_async_work(_env, resource, resource_id, OnAsyncWorkExecute,
+                                  OnAsyncWorkComplete, this, &_work);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline AsyncWorker::AsyncWorker(Napi::Env env)
+  : AsyncWorker(env, "generic") {
+}
+
+inline AsyncWorker::AsyncWorker(Napi::Env env,
+                                const char* resource_name)
+  : AsyncWorker(env, resource_name, Object::New(env)) {
+}
+
+inline AsyncWorker::AsyncWorker(Napi::Env env,
+                                const char* resource_name,
+                                const Object& resource)
+  : _env(env),
+    _receiver(),
+    _callback(),
+    _suppress_destruct(false) {
+  napi_value resource_id;
+  napi_status status = napi_create_string_latin1(
+      _env, resource_name, NAPI_AUTO_LENGTH, &resource_id);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+
+  status = napi_create_async_work(_env, resource, resource_id, OnAsyncWorkExecute,
+                                  OnAsyncWorkComplete, this, &_work);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline AsyncWorker::~AsyncWorker() {
+  if (_work != nullptr) {
+    napi_delete_async_work(_env, _work);
+    _work = nullptr;
+  }
+}
+
+inline void AsyncWorker::Destroy() {
+  delete this;
+}
+
+inline AsyncWorker::AsyncWorker(AsyncWorker&& other) {
+  _env = other._env;
+  other._env = nullptr;
+  _work = other._work;
+  other._work = nullptr;
+  _receiver = std::move(other._receiver);
+  _callback = std::move(other._callback);
+  _error = std::move(other._error);
+  _suppress_destruct = other._suppress_destruct;
+}
+
+inline AsyncWorker& AsyncWorker::operator =(AsyncWorker&& other) {
+  _env = other._env;
+  other._env = nullptr;
+  _work = other._work;
+  other._work = nullptr;
+  _receiver = std::move(other._receiver);
+  _callback = std::move(other._callback);
+  _error = std::move(other._error);
+  _suppress_destruct = other._suppress_destruct;
+  return *this;
+}
+
+inline AsyncWorker::operator napi_async_work() const {
+  return _work;
+}
+
+inline Napi::Env AsyncWorker::Env() const {
+  return Napi::Env(_env);
+}
+
+inline void AsyncWorker::Queue() {
+  napi_status status = napi_queue_async_work(_env, _work);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline void AsyncWorker::Cancel() {
+  napi_status status = napi_cancel_async_work(_env, _work);
+  NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline ObjectReference& AsyncWorker::Receiver() {
+  return _receiver;
+}
+
+inline FunctionReference& AsyncWorker::Callback() {
+  return _callback;
+}
+
+inline void AsyncWorker::SuppressDestruct() {
+  _suppress_destruct = true;
+}
+
+inline void AsyncWorker::OnOK() {
+  if (!_callback.IsEmpty()) {
+    _callback.Call(_receiver.Value(), GetResult(_callback.Env()));
+  }
+}
+
+inline void AsyncWorker::OnError(const Error& e) {
+  if (!_callback.IsEmpty()) {
+    _callback.Call(_receiver.Value(), std::initializer_list<napi_value>{ e.Value() });
+  }
+}
+
+inline void AsyncWorker::SetError(const std::string& error) {
+  _error = error;
+}
+
+inline std::vector<napi_value> AsyncWorker::GetResult(Napi::Env /*env*/) {
+  return {};
+}
+// The OnAsyncWorkExecute method receives an napi_env argument. However, do NOT
+// use it within this method, as it does not run on the JavaScript thread and
+// must not run any method that would cause JavaScript to run. In practice,
+// this means that almost any use of napi_env will be incorrect.
+inline void AsyncWorker::OnAsyncWorkExecute(napi_env env, void* asyncworker) {
+  AsyncWorker* self = static_cast<AsyncWorker*>(asyncworker);
+  self->OnExecute(env);
+}
+// The OnExecute method receives an napi_env argument. However, do NOT
+// use it within this method, as it does not run on the JavaScript thread and
+// must not run any method that would cause JavaScript to run. In practice,
+// this means that almost any use of napi_env will be incorrect.
+inline void AsyncWorker::OnExecute(Napi::Env /*DO_NOT_USE*/) {
+#ifdef NAPI_CPP_EXCEPTIONS
+  try {
+    Execute();
+  } catch (const std::exception& e) {
+    SetError(e.what());
+  }
+#else // NAPI_CPP_EXCEPTIONS
+  Execute();
+#endif // NAPI_CPP_EXCEPTIONS
+}
+
+inline void AsyncWorker::OnAsyncWorkComplete(napi_env env,
+                                             napi_status status,
+                                             void* asyncworker) {
+  AsyncWorker* self = static_cast<AsyncWorker*>(asyncworker);
+  self->OnWorkComplete(env, status);
+}
+inline void AsyncWorker::OnWorkComplete(Napi::Env /*env*/, napi_status status) {
+  if (status != napi_cancelled) {
+    HandleScope scope(_env);
+    details::WrapCallback([&] {
+      if (_error.size() == 0) {
+        OnOK();
+      }
+      else {
+        OnError(Error::New(_env, _error));
+      }
+      return nullptr;
+    });
+  }
+  if (!_suppress_destruct) {
+    Destroy();
+  }
+}
+
+#if (NAPI_VERSION > 3 && !defined(__wasm32__))
+////////////////////////////////////////////////////////////////////////////////
+// TypedThreadSafeFunction<ContextType,DataType,CallJs> class
+////////////////////////////////////////////////////////////////////////////////
+
+// Starting with NAPI 5, the JavaScript function `func` parameter of
+// `napi_create_threadsafe_function` is optional.
+#if NAPI_VERSION > 4
+// static, with Callback [missing] Resource [missing] Finalizer [missing]
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+    napi_env env,
+    ResourceString resourceName,
+    size_t maxQueueSize,
+    size_t initialThreadCount,
+    ContextType* context) {
+  TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+  napi_status status =
+      napi_create_threadsafe_function(env,
+                                      nullptr,
+                                      nullptr,
+                                      String::From(env, resourceName),
+                                      maxQueueSize,
+                                      initialThreadCount,
+                                      nullptr,
+                                      nullptr,
+                                      context,
+                                      CallJsInternal,
+                                      &tsfn._tsfn);
+  if (status != napi_ok) {
+    NAPI_THROW_IF_FAILED(
+        env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+  }
+
+  return tsfn;
+}
+
+// static, with Callback [missing] Resource [passed] Finalizer [missing]
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+    napi_env env,
+    const Object& resource,
+    ResourceString resourceName,
+    size_t maxQueueSize,
+    size_t initialThreadCount,
+    ContextType* context) {
+  TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+  napi_status status =
+      napi_create_threadsafe_function(env,
+                                      nullptr,
+                                      resource,
+                                      String::From(env, resourceName),
+                                      maxQueueSize,
+                                      initialThreadCount,
+                                      nullptr,
+                                      nullptr,
+                                      context,
+                                      CallJsInternal,
+                                      &tsfn._tsfn);
+  if (status != napi_ok) {
+    NAPI_THROW_IF_FAILED(
+        env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+  }
+
+  return tsfn;
+}
+
+// static, with Callback [missing] Resource [missing] Finalizer [passed]
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString,
+          typename Finalizer,
+          typename FinalizerDataType>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+    napi_env env,
+    ResourceString resourceName,
+    size_t maxQueueSize,
+    size_t initialThreadCount,
+    ContextType* context,
+    Finalizer finalizeCallback,
+    FinalizerDataType* data) {
+  TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+  auto* finalizeData = new details::
+      ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>(
+          {data, finalizeCallback});
+  napi_status status = napi_create_threadsafe_function(
+      env,
+      nullptr,
+      nullptr,
+      String::From(env, resourceName),
+      maxQueueSize,
+      initialThreadCount,
+      finalizeData,
+      details::ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>::
+          FinalizeFinalizeWrapperWithDataAndContext,
+      context,
+      CallJsInternal,
+      &tsfn._tsfn);
+  if (status != napi_ok) {
+    delete finalizeData;
+    NAPI_THROW_IF_FAILED(
+        env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+  }
+
+  return tsfn;
+}
+
+// static, with Callback [missing] Resource [passed] Finalizer [passed]
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString,
+          typename Finalizer,
+          typename FinalizerDataType>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+    napi_env env,
+    const Object& resource,
+    ResourceString resourceName,
+    size_t maxQueueSize,
+    size_t initialThreadCount,
+    ContextType* context,
+    Finalizer finalizeCallback,
+    FinalizerDataType* data) {
+  TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+  auto* finalizeData = new details::
+      ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>(
+          {data, finalizeCallback});
+  napi_status status = napi_create_threadsafe_function(
+      env,
+      nullptr,
+      resource,
+      String::From(env, resourceName),
+      maxQueueSize,
+      initialThreadCount,
+      finalizeData,
+      details::ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>::
+          FinalizeFinalizeWrapperWithDataAndContext,
+      context,
+      CallJsInternal,
+      &tsfn._tsfn);
+  if (status != napi_ok) {
+    delete finalizeData;
+    NAPI_THROW_IF_FAILED(
+        env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+  }
+
+  return tsfn;
+}
+#endif
+
+// static, with Callback [passed] Resource [missing] Finalizer [missing]
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+    napi_env env,
+    const Function& callback,
+    ResourceString resourceName,
+    size_t maxQueueSize,
+    size_t initialThreadCount,
+    ContextType* context) {
+  TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+  napi_status status =
+      napi_create_threadsafe_function(env,
+                                      callback,
+                                      nullptr,
+                                      String::From(env, resourceName),
+                                      maxQueueSize,
+                                      initialThreadCount,
+                                      nullptr,
+                                      nullptr,
+                                      context,
+                                      CallJsInternal,
+                                      &tsfn._tsfn);
+  if (status != napi_ok) {
+    NAPI_THROW_IF_FAILED(
+        env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+  }
+
+  return tsfn;
+}
+
+// static, with Callback [passed] Resource [passed] Finalizer [missing]
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+    napi_env env,
+    const Function& callback,
+    const Object& resource,
+    ResourceString resourceName,
+    size_t maxQueueSize,
+    size_t initialThreadCount,
+    ContextType* context) {
+  TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+  napi_status status =
+      napi_create_threadsafe_function(env,
+                                      callback,
+                                      resource,
+                                      String::From(env, resourceName),
+                                      maxQueueSize,
+                                      initialThreadCount,
+                                      nullptr,
+                                      nullptr,
+                                      context,
+                                      CallJsInternal,
+                                      &tsfn._tsfn);
+  if (status != napi_ok) {
+    NAPI_THROW_IF_FAILED(
+        env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+  }
+
+  return tsfn;
+}
+
+// static, with Callback [passed] Resource [missing] Finalizer [passed]
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString,
+          typename Finalizer,
+          typename FinalizerDataType>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+    napi_env env,
+    const Function& callback,
+    ResourceString resourceName,
+    size_t maxQueueSize,
+    size_t initialThreadCount,
+    ContextType* context,
+    Finalizer finalizeCallback,
+    FinalizerDataType* data) {
+  TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+  auto* finalizeData = new details::
+      ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>(
+          {data, finalizeCallback});
+  napi_status status = napi_create_threadsafe_function(
+      env,
+      callback,
+      nullptr,
+      String::From(env, resourceName),
+      maxQueueSize,
+      initialThreadCount,
+      finalizeData,
+      details::ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>::
+          FinalizeFinalizeWrapperWithDataAndContext,
+      context,
+      CallJsInternal,
+      &tsfn._tsfn);
+  if (status != napi_ok) {
+    delete finalizeData;
+    NAPI_THROW_IF_FAILED(
+        env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+  }
+
+  return tsfn;
+}
+
+// static, with: Callback [passed] Resource [passed] Finalizer [passed]
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename CallbackType,
+          typename ResourceString,
+          typename Finalizer,
+          typename FinalizerDataType>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+    napi_env env,
+    CallbackType callback,
+    const Object& resource,
+    ResourceString resourceName,
+    size_t maxQueueSize,
+    size_t initialThreadCount,
+    ContextType* context,
+    Finalizer finalizeCallback,
+    FinalizerDataType* data) {
+  TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+  auto* finalizeData = new details::
+      ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>(
+          {data, finalizeCallback});
+  napi_status status = napi_create_threadsafe_function(
+      env,
+      details::DefaultCallbackWrapper<
+          CallbackType,
+          TypedThreadSafeFunction<ContextType, DataType, CallJs>>(env,
+                                                                  callback),
+      resource,
+      String::From(env, resourceName),
+      maxQueueSize,
+      initialThreadCount,
+      finalizeData,
+      details::ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>::
+          FinalizeFinalizeWrapperWithDataAndContext,
+      context,
+      CallJsInternal,
+      &tsfn._tsfn);
+  if (status != napi_ok) {
+    delete finalizeData;
+    NAPI_THROW_IF_FAILED(
+        env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+  }
+
+  return tsfn;
+}
+
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>::
+    TypedThreadSafeFunction()
+    : _tsfn() {}
+
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>::
+    TypedThreadSafeFunction(napi_threadsafe_function tsfn)
+    : _tsfn(tsfn) {}
+
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>::
+operator napi_threadsafe_function() const {
+  return _tsfn;
+}
+
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline napi_status
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::BlockingCall(
+    DataType* data) const {
+  return napi_call_threadsafe_function(_tsfn, data, napi_tsfn_blocking);
+}
+
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline napi_status
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::NonBlockingCall(
+    DataType* data) const {
+  return napi_call_threadsafe_function(_tsfn, data, napi_tsfn_nonblocking);
+}
+
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline void TypedThreadSafeFunction<ContextType, DataType, CallJs>::Ref(
+    napi_env env) const {
+  if (_tsfn != nullptr) {
+    napi_status status = napi_ref_threadsafe_function(env, _tsfn);
+    NAPI_THROW_IF_FAILED_VOID(env, status);
+  }
+}
+
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline void TypedThreadSafeFunction<ContextType, DataType, CallJs>::Unref(
+    napi_env env) const {
+  if (_tsfn != nullptr) {
+    napi_status status = napi_unref_threadsafe_function(env, _tsfn);
+    NAPI_THROW_IF_FAILED_VOID(env, status);
+  }
+}
+
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline napi_status
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::Acquire() const {
+  return napi_acquire_threadsafe_function(_tsfn);
+}
+
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline napi_status
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::Release() {
+  return napi_release_threadsafe_function(_tsfn, napi_tsfn_release);
+}
+
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline napi_status
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::Abort() {
+  return napi_release_threadsafe_function(_tsfn, napi_tsfn_abort);
+}
+
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline ContextType*
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::GetContext() const {
+  void* context;
+  napi_status status = napi_get_threadsafe_function_context(_tsfn, &context);
+  NAPI_FATAL_IF_FAILED(status,
+                       "TypedThreadSafeFunction::GetContext",
+                       "napi_get_threadsafe_function_context");
+  return static_cast<ContextType*>(context);
+}
+
+// static
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+void TypedThreadSafeFunction<ContextType, DataType, CallJs>::CallJsInternal(
+    napi_env env, napi_value jsCallback, void* context, void* data) {
+  details::CallJsWrapper<ContextType, DataType, decltype(CallJs), CallJs>(
+      env, jsCallback, context, data);
+}
+
+#if NAPI_VERSION == 4
+// static
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+Napi::Function
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::EmptyFunctionFactory(
+    Napi::Env env) {
+  return Napi::Function::New(env, [](const CallbackInfo& cb) {});
+}
+
+// static
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+Napi::Function
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::FunctionOrEmpty(
+    Napi::Env env, Napi::Function& callback) {
+  if (callback.IsEmpty()) {
+    return EmptyFunctionFactory(env);
+  }
+  return callback;
+}
+
+#else
+// static
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+std::nullptr_t
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::EmptyFunctionFactory(
+    Napi::Env /*env*/) {
+  return nullptr;
+}
+
+// static
+template <typename ContextType,
+          typename DataType,
+          void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+Napi::Function
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::FunctionOrEmpty(
+    Napi::Env /*env*/, Napi::Function& callback) {
+  return callback;
+}
+
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+// ThreadSafeFunction class
+////////////////////////////////////////////////////////////////////////////////
+
+// static
+template <typename ResourceString>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+                                  const Function& callback,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount) {
+  return New(env, callback, Object(), resourceName, maxQueueSize,
+             initialThreadCount);
+}
+
+// static
+template <typename ResourceString, typename ContextType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+                                  const Function& callback,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  ContextType* context) {
+  return New(env, callback, Object(), resourceName, maxQueueSize,
+             initialThreadCount, context);
+}
+
+// static
+template <typename ResourceString, typename Finalizer>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+                                  const Function& callback,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  Finalizer finalizeCallback) {
+  return New(env, callback, Object(), resourceName, maxQueueSize,
+             initialThreadCount, finalizeCallback);
+}
+
+// static
+template <typename ResourceString, typename Finalizer,
+          typename FinalizerDataType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+                                  const Function& callback,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  Finalizer finalizeCallback,
+                                  FinalizerDataType* data) {
+  return New(env, callback, Object(), resourceName, maxQueueSize,
+             initialThreadCount, finalizeCallback, data);
+}
+
+// static
+template <typename ResourceString, typename ContextType, typename Finalizer>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+                                  const Function& callback,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  ContextType* context,
+                                  Finalizer finalizeCallback) {
+  return New(env, callback, Object(), resourceName, maxQueueSize,
+             initialThreadCount, context, finalizeCallback);
+}
+
+// static
+template <typename ResourceString, typename ContextType,
+          typename Finalizer, typename FinalizerDataType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+                                                  const Function& callback,
+                                                  ResourceString resourceName,
+                                                  size_t maxQueueSize,
+                                                  size_t initialThreadCount,
+                                                  ContextType* context,
+                                                  Finalizer finalizeCallback,
+                                                  FinalizerDataType* data) {
+  return New(env, callback, Object(), resourceName, maxQueueSize,
+             initialThreadCount, context, finalizeCallback, data);
+}
+
+// static
+template <typename ResourceString>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+                                  const Function& callback,
+                                  const Object& resource,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount) {
+  return New(env, callback, resource, resourceName, maxQueueSize,
+             initialThreadCount, static_cast<void*>(nullptr) /* context */);
+}
+
+// static
+template <typename ResourceString, typename ContextType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+                                  const Function& callback,
+                                  const Object& resource,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  ContextType* context) {
+  return New(env, callback, resource, resourceName, maxQueueSize,
+             initialThreadCount, context,
+             [](Env, ContextType*) {} /* empty finalizer */);
+}
+
+// static
+template <typename ResourceString, typename Finalizer>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+                                  const Function& callback,
+                                  const Object& resource,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  Finalizer finalizeCallback) {
+  return New(env, callback, resource, resourceName, maxQueueSize,
+             initialThreadCount, static_cast<void*>(nullptr) /* context */,
+             finalizeCallback, static_cast<void*>(nullptr) /* data */,
+             details::ThreadSafeFinalize<void, Finalizer>::Wrapper);
+}
+
+// static
+template <typename ResourceString, typename Finalizer,
+          typename FinalizerDataType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+                                  const Function& callback,
+                                  const Object& resource,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  Finalizer finalizeCallback,
+                                  FinalizerDataType* data) {
+  return New(env, callback, resource, resourceName, maxQueueSize,
+             initialThreadCount, static_cast<void*>(nullptr) /* context */,
+             finalizeCallback, data,
+             details::ThreadSafeFinalize<
+                 void, Finalizer, FinalizerDataType>::FinalizeWrapperWithData);
+}
+
+// static
+template <typename ResourceString, typename ContextType, typename Finalizer>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+                                  const Function& callback,
+                                  const Object& resource,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  ContextType* context,
+                                  Finalizer finalizeCallback) {
+  return New(env, callback, resource, resourceName, maxQueueSize,
+             initialThreadCount, context, finalizeCallback,
+             static_cast<void*>(nullptr) /* data */,
+             details::ThreadSafeFinalize<
+                 ContextType, Finalizer>::FinalizeWrapperWithContext);
+}
+
+// static
+template <typename ResourceString, typename ContextType,
+          typename Finalizer, typename FinalizerDataType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+                                                  const Function& callback,
+                                                  const Object& resource,
+                                                  ResourceString resourceName,
+                                                  size_t maxQueueSize,
+                                                  size_t initialThreadCount,
+                                                  ContextType* context,
+                                                  Finalizer finalizeCallback,
+                                                  FinalizerDataType* data) {
+  return New(env, callback, resource, resourceName, maxQueueSize,
+             initialThreadCount, context, finalizeCallback, data,
+             details::ThreadSafeFinalize<ContextType, Finalizer,
+                 FinalizerDataType>::FinalizeFinalizeWrapperWithDataAndContext);
+}
+
+inline ThreadSafeFunction::ThreadSafeFunction()
+  : _tsfn() {
+}
+
+inline ThreadSafeFunction::ThreadSafeFunction(
+    napi_threadsafe_function tsfn)
+  : _tsfn(tsfn) {
+}
+
+inline ThreadSafeFunction::operator napi_threadsafe_function() const {
+  return _tsfn;
+}
+
+inline napi_status ThreadSafeFunction::BlockingCall() const {
+  return CallInternal(nullptr, napi_tsfn_blocking);
+}
+
+template <>
+inline napi_status ThreadSafeFunction::BlockingCall(
+    void* data) const {
+  return napi_call_threadsafe_function(_tsfn, data, napi_tsfn_blocking);
+}
+
+template <typename Callback>
+inline napi_status ThreadSafeFunction::BlockingCall(
+    Callback callback) const {
+  return CallInternal(new CallbackWrapper(callback), napi_tsfn_blocking);
+}
+
+template <typename DataType, typename Callback>
+inline napi_status ThreadSafeFunction::BlockingCall(
+    DataType* data, Callback callback) const {
+  auto wrapper = [data, callback](Env env, Function jsCallback) {
+    callback(env, jsCallback, data);
+  };
+  return CallInternal(new CallbackWrapper(wrapper), napi_tsfn_blocking);
+}
+
+inline napi_status ThreadSafeFunction::NonBlockingCall() const {
+  return CallInternal(nullptr, napi_tsfn_nonblocking);
+}
+
+template <>
+inline napi_status ThreadSafeFunction::NonBlockingCall(
+    void* data) const {
+  return napi_call_threadsafe_function(_tsfn, data, napi_tsfn_nonblocking);
+}
+
+template <typename Callback>
+inline napi_status ThreadSafeFunction::NonBlockingCall(
+    Callback callback) const {
+  return CallInternal(new CallbackWrapper(callback), napi_tsfn_nonblocking);
+}
+
+template <typename DataType, typename Callback>
+inline napi_status ThreadSafeFunction::NonBlockingCall(
+    DataType* data, Callback callback) const {
+  auto wrapper = [data, callback](Env env, Function jsCallback) {
+    callback(env, jsCallback, data);
+  };
+  return CallInternal(new CallbackWrapper(wrapper), napi_tsfn_nonblocking);
+}
+
+inline void ThreadSafeFunction::Ref(napi_env env) const {
+  if (_tsfn != nullptr) {
+    napi_status status = napi_ref_threadsafe_function(env, _tsfn);
+    NAPI_THROW_IF_FAILED_VOID(env, status);
+  }
+}
+
+inline void ThreadSafeFunction::Unref(napi_env env) const {
+  if (_tsfn != nullptr) {
+    napi_status status = napi_unref_threadsafe_function(env, _tsfn);
+    NAPI_THROW_IF_FAILED_VOID(env, status);
+  }
+}
+
+inline napi_status ThreadSafeFunction::Acquire() const {
+  return napi_acquire_threadsafe_function(_tsfn);
+}
+
+inline napi_status ThreadSafeFunction::Release() {
+  return napi_release_threadsafe_function(_tsfn, napi_tsfn_release);
+}
+
+inline napi_status ThreadSafeFunction::Abort() {
+  return napi_release_threadsafe_function(_tsfn, napi_tsfn_abort);
+}
+
+inline ThreadSafeFunction::ConvertibleContext
+ThreadSafeFunction::GetContext() const {
+  void* context;
+  napi_status status = napi_get_threadsafe_function_context(_tsfn, &context);
+  NAPI_FATAL_IF_FAILED(status, "ThreadSafeFunction::GetContext", "napi_get_threadsafe_function_context");
+  return ConvertibleContext({ context });
+}
+
+// static
+template <typename ResourceString, typename ContextType,
+          typename Finalizer, typename FinalizerDataType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+                                                  const Function& callback,
+                                                  const Object& resource,
+                                                  ResourceString resourceName,
+                                                  size_t maxQueueSize,
+                                                  size_t initialThreadCount,
+                                                  ContextType* context,
+                                                  Finalizer finalizeCallback,
+                                                  FinalizerDataType* data,
+                                                  napi_finalize wrapper) {
+  static_assert(details::can_make_string<ResourceString>::value
+      || std::is_convertible<ResourceString, napi_value>::value,
+      "Resource name should be convertible to the string type");
+
+  ThreadSafeFunction tsfn;
+  auto* finalizeData = new details::ThreadSafeFinalize<ContextType, Finalizer,
+      FinalizerDataType>({ data, finalizeCallback });
+  napi_status status = napi_create_threadsafe_function(env, callback, resource,
+      Value::From(env, resourceName), maxQueueSize, initialThreadCount,
+      finalizeData, wrapper, context, CallJS, &tsfn._tsfn);
+  if (status != napi_ok) {
+    delete finalizeData;
+    NAPI_THROW_IF_FAILED(env, status, ThreadSafeFunction());
+  }
+
+  return tsfn;
+}
+
+inline napi_status ThreadSafeFunction::CallInternal(
+    CallbackWrapper* callbackWrapper,
+    napi_threadsafe_function_call_mode mode) const {
+  napi_status status = napi_call_threadsafe_function(
+      _tsfn, callbackWrapper, mode);
+  if (status != napi_ok && callbackWrapper != nullptr) {
+    delete callbackWrapper;
+  }
+
+  return status;
+}
+
+// static
+inline void ThreadSafeFunction::CallJS(napi_env env,
+                                       napi_value jsCallback,
+                                       void* /* context */,
+                                       void* data) {
+  if (env == nullptr && jsCallback == nullptr) {
+    return;
+  }
+
+  if (data != nullptr) {
+    auto* callbackWrapper = static_cast<CallbackWrapper*>(data);
+    (*callbackWrapper)(env, Function(env, jsCallback));
+    delete callbackWrapper;
+  } else if (jsCallback != nullptr) {
+    Function(env, jsCallback).Call({});
+  }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Async Progress Worker Base class
+////////////////////////////////////////////////////////////////////////////////
+template <typename DataType>
+inline AsyncProgressWorkerBase<DataType>::AsyncProgressWorkerBase(const Object& receiver,
+                                                                  const Function& callback,
+                                                                  const char* resource_name,
+                                                                  const Object& resource,
+                                                                  size_t queue_size)
+  : AsyncWorker(receiver, callback, resource_name, resource) {
+  // Fill all possible arguments to work around ambiguous ThreadSafeFunction::New signatures.
+  _tsfn = ThreadSafeFunction::New(callback.Env(),
+                                  callback,
+                                  resource,
+                                  resource_name,
+                                  queue_size,
+                                  /** initialThreadCount */ 1,
+                                  /** context */ this,
+                                  OnThreadSafeFunctionFinalize,
+                                  /** finalizeData */ this);
+}
+
+#if NAPI_VERSION > 4
+template <typename DataType>
+inline AsyncProgressWorkerBase<DataType>::AsyncProgressWorkerBase(Napi::Env env,
+                                                                  const char* resource_name,
+                                                                  const Object& resource,
+                                                                  size_t queue_size)
+  : AsyncWorker(env, resource_name, resource) {
+  // TODO: Once the changes to make the callback optional for threadsafe
+  // functions are available on all versions we can remove the dummy Function here.
+  Function callback;
+  // Fill all possible arguments to work around ambiguous ThreadSafeFunction::New signatures.
+  _tsfn = ThreadSafeFunction::New(env,
+                                  callback,
+                                  resource,
+                                  resource_name,
+                                  queue_size,
+                                  /** initialThreadCount */ 1,
+                                  /** context */ this,
+                                  OnThreadSafeFunctionFinalize,
+                                  /** finalizeData */ this);
+}
+#endif
+
+template<typename DataType>
+inline AsyncProgressWorkerBase<DataType>::~AsyncProgressWorkerBase() {
+  // Abort pending tsfn call.
+  // Don't send progress events after we've already completed.
+  // It's ok to call ThreadSafeFunction::Abort and ThreadSafeFunction::Release duplicated.
+  _tsfn.Abort();
+}
+
+template <typename DataType>
+inline void AsyncProgressWorkerBase<DataType>::OnAsyncWorkProgress(Napi::Env /* env */,
+                                Napi::Function /* jsCallback */,
+                                void* data) {
+  ThreadSafeData* tsd = static_cast<ThreadSafeData*>(data);
+  tsd->asyncprogressworker()->OnWorkProgress(tsd->data());
+  delete tsd;
+}
+
+template <typename DataType>
+inline napi_status AsyncProgressWorkerBase<DataType>::NonBlockingCall(DataType* data) {
+  auto tsd = new AsyncProgressWorkerBase::ThreadSafeData(this, data);
+  return _tsfn.NonBlockingCall(tsd, OnAsyncWorkProgress);
+}
+
+template <typename DataType>
+inline void AsyncProgressWorkerBase<DataType>::OnWorkComplete(Napi::Env /* env */, napi_status status) {
+  _work_completed = true;
+  _complete_status = status;
+  _tsfn.Release();
+}
+
+template <typename DataType>
+inline void AsyncProgressWorkerBase<DataType>::OnThreadSafeFunctionFinalize(Napi::Env env, void* /* data */, AsyncProgressWorkerBase* context) {
+  if (context->_work_completed) {
+    context->AsyncWorker::OnWorkComplete(env, context->_complete_status);
+  }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Async Progress Worker class
+////////////////////////////////////////////////////////////////////////////////
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(const Function& callback)
+  : AsyncProgressWorker(callback, "generic") {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(const Function& callback,
+                                const char* resource_name)
+  : AsyncProgressWorker(callback, resource_name, Object::New(callback.Env())) {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(const Function& callback,
+                                const char* resource_name,
+                                const Object& resource)
+  : AsyncProgressWorker(Object::New(callback.Env()),
+                callback,
+                resource_name,
+                resource) {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(const Object& receiver,
+                                                   const Function& callback)
+  : AsyncProgressWorker(receiver, callback, "generic") {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(const Object& receiver,
+                                                   const Function& callback,
+                                                   const char* resource_name)
+  : AsyncProgressWorker(receiver,
+                callback,
+                resource_name,
+                Object::New(callback.Env())) {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(const Object& receiver,
+                                                   const Function& callback,
+                                                   const char* resource_name,
+                                                   const Object& resource)
+  : AsyncProgressWorkerBase(receiver, callback, resource_name, resource),
+    _asyncdata(nullptr),
+    _asyncsize(0) {
+}
+
+#if NAPI_VERSION > 4
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(Napi::Env env)
+  : AsyncProgressWorker(env, "generic") {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(Napi::Env env,
+                                                   const char* resource_name)
+  : AsyncProgressWorker(env, resource_name, Object::New(env)) {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(Napi::Env env,
+                                                   const char* resource_name,
+                                                   const Object& resource)
+  : AsyncProgressWorkerBase(env, resource_name, resource),
+    _asyncdata(nullptr),
+    _asyncsize(0) {
+}
+#endif
+
+template<class T>
+inline AsyncProgressWorker<T>::~AsyncProgressWorker() {
+  {
+    std::lock_guard<std::mutex> lock(this->_mutex);
+    _asyncdata = nullptr;
+    _asyncsize = 0;
+  }
+}
+
+template<class T>
+inline void AsyncProgressWorker<T>::Execute() {
+  ExecutionProgress progress(this);
+  Execute(progress);
+}
+
+template<class T>
+inline void AsyncProgressWorker<T>::OnWorkProgress(void*) {
+  T* data;
+  size_t size;
+  {
+    std::lock_guard<std::mutex> lock(this->_mutex);
+    data = this->_asyncdata;
+    size = this->_asyncsize;
+    this->_asyncdata = nullptr;
+    this->_asyncsize = 0;
+  }
+
+  /**
+   * The callback of ThreadSafeFunction is not been invoked immediately on the
+   * callback of uv_async_t (uv io poll), rather the callback of TSFN is
+   * invoked on the right next uv idle callback. There are chances that during
+   * the deferring the signal of uv_async_t is been sent again, i.e. potential
+   * not coalesced two calls of the TSFN callback.
+   */
+  if (data == nullptr) {
+    return;
+  }
+
+  this->OnProgress(data, size);
+  delete[] data;
+}
+
+template<class T>
+inline void AsyncProgressWorker<T>::SendProgress_(const T* data, size_t count) {
+    T* new_data = new T[count];
+    std::copy(data, data + count, new_data);
+
+    T* old_data;
+    {
+      std::lock_guard<std::mutex> lock(this->_mutex);
+      old_data = _asyncdata;
+      _asyncdata = new_data;
+      _asyncsize = count;
+    }
+    this->NonBlockingCall(nullptr);
+
+    delete[] old_data;
+}
+
+template<class T>
+inline void AsyncProgressWorker<T>::Signal() const {
+  this->NonBlockingCall(static_cast<T*>(nullptr));
+}
+
+template<class T>
+inline void AsyncProgressWorker<T>::ExecutionProgress::Signal() const {
+  _worker->Signal();
+}
+
+template<class T>
+inline void AsyncProgressWorker<T>::ExecutionProgress::Send(const T* data, size_t count) const {
+  _worker->SendProgress_(data, count);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Async Progress Queue Worker class
+////////////////////////////////////////////////////////////////////////////////
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(const Function& callback)
+  : AsyncProgressQueueWorker(callback, "generic") {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(const Function& callback,
+                                                             const char* resource_name)
+  : AsyncProgressQueueWorker(callback, resource_name, Object::New(callback.Env())) {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(const Function& callback,
+                                                             const char* resource_name,
+                                                             const Object& resource)
+  : AsyncProgressQueueWorker(Object::New(callback.Env()),
+                             callback,
+                             resource_name,
+                             resource) {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(const Object& receiver,
+                                                             const Function& callback)
+  : AsyncProgressQueueWorker(receiver, callback, "generic") {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(const Object& receiver,
+                                                             const Function& callback,
+                                                             const char* resource_name)
+  : AsyncProgressQueueWorker(receiver,
+                             callback,
+                             resource_name,
+                             Object::New(callback.Env())) {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(const Object& receiver,
+                                                             const Function& callback,
+                                                             const char* resource_name,
+                                                             const Object& resource)
+  : AsyncProgressWorkerBase<std::pair<T*, size_t>>(receiver, callback, resource_name, resource, /** unlimited queue size */0) {
+}
+
+#if NAPI_VERSION > 4
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(Napi::Env env)
+  : AsyncProgressQueueWorker(env, "generic") {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(Napi::Env env,
+                                const char* resource_name)
+  : AsyncProgressQueueWorker(env, resource_name, Object::New(env)) {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(Napi::Env env,
+                                                             const char* resource_name,
+                                                             const Object& resource)
+  : AsyncProgressWorkerBase<std::pair<T*, size_t>>(env, resource_name, resource, /** unlimited queue size */0) {
+}
+#endif
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::Execute() {
+  ExecutionProgress progress(this);
+  Execute(progress);
+}
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::OnWorkProgress(std::pair<T*, size_t>* datapair) {
+  if (datapair == nullptr) {
+    return;
+  }
+
+  T *data = datapair->first;
+  size_t size = datapair->second;
+
+  this->OnProgress(data, size);
+  delete datapair;
+  delete[] data;
+}
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::SendProgress_(const T* data, size_t count) {
+    T* new_data = new T[count];
+    std::copy(data, data + count, new_data);
+
+    auto pair = new std::pair<T*, size_t>(new_data, count);
+    this->NonBlockingCall(pair);
+}
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::Signal() const {
+  this->NonBlockingCall(nullptr);
+}
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::OnWorkComplete(Napi::Env env, napi_status status) {
+  // Draining queued items in TSFN.
+  AsyncProgressWorkerBase<std::pair<T*, size_t>>::OnWorkComplete(env, status);
+}
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::ExecutionProgress::Signal() const {
+  _worker->Signal();
+}
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::ExecutionProgress::Send(const T* data, size_t count) const {
+  _worker->SendProgress_(data, count);
+}
+#endif  // NAPI_VERSION > 3 && !defined(__wasm32__)
+
+////////////////////////////////////////////////////////////////////////////////
+// Memory Management class
+////////////////////////////////////////////////////////////////////////////////
+
+inline int64_t MemoryManagement::AdjustExternalMemory(Env env, int64_t change_in_bytes) {
+  int64_t result;
+  napi_status status = napi_adjust_external_memory(env, change_in_bytes, &result);
+  NAPI_THROW_IF_FAILED(env, status, 0);
+  return result;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Version Management class
+////////////////////////////////////////////////////////////////////////////////
+
+inline uint32_t VersionManagement::GetNapiVersion(Env env) {
+  uint32_t result;
+  napi_status status = napi_get_version(env, &result);
+  NAPI_THROW_IF_FAILED(env, status, 0);
+  return result;
+}
+
+inline const napi_node_version* VersionManagement::GetNodeVersion(Env env) {
+  const napi_node_version* result;
+  napi_status status = napi_get_node_version(env, &result);
+  NAPI_THROW_IF_FAILED(env, status, 0);
+  return result;
+}
+
+#if NAPI_VERSION > 5
+////////////////////////////////////////////////////////////////////////////////
+// Addon<T> class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline Object Addon<T>::Init(Env env, Object exports) {
+  T* addon = new T(env, exports);
+  env.SetInstanceData(addon);
+  return addon->entry_point_;
+}
+
+template <typename T>
+inline T* Addon<T>::Unwrap(Object wrapper) {
+  return wrapper.Env().GetInstanceData<T>();
+}
+
+template <typename T>
+inline void
+Addon<T>::DefineAddon(Object exports,
+                      const std::initializer_list<AddonProp>& props) {
+  DefineProperties(exports, props);
+  entry_point_ = exports;
+}
+
+template <typename T>
+inline Napi::Object
+Addon<T>::DefineProperties(Object object,
+                           const std::initializer_list<AddonProp>& props) {
+  const napi_property_descriptor* properties =
+    reinterpret_cast<const napi_property_descriptor*>(props.begin());
+  size_t size = props.size();
+  napi_status status = napi_define_properties(object.Env(),
+                                              object,
+                                              size,
+                                              properties);
+  NAPI_THROW_IF_FAILED(object.Env(), status, object);
+  for (size_t idx = 0; idx < size; idx++)
+    T::AttachPropData(object.Env(), object, &properties[idx]);
+  return object;
+}
+#endif  // NAPI_VERSION > 5
+
+#if NAPI_VERSION > 2
+template <typename Hook, typename Arg>
+Env::CleanupHook<Hook, Arg> Env::AddCleanupHook(Hook hook, Arg* arg) {
+  return CleanupHook<Hook, Arg>(*this, hook, arg);
+}
+
+template <typename Hook>
+Env::CleanupHook<Hook> Env::AddCleanupHook(Hook hook) {
+  return CleanupHook<Hook>(*this, hook);
+}
+
+template <typename Hook, typename Arg>
+Env::CleanupHook<Hook, Arg>::CleanupHook(Napi::Env env, Hook hook)
+    : wrapper(Env::CleanupHook<Hook, Arg>::Wrapper) {
+  data = new CleanupData{std::move(hook), nullptr};
+  napi_status status = napi_add_env_cleanup_hook(env, wrapper, data);
+  if (status != napi_ok) {
+    delete data;
+    data = nullptr;
+  }
+}
+
+template <typename Hook, typename Arg>
+Env::CleanupHook<Hook, Arg>::CleanupHook(Napi::Env env, Hook hook, Arg* arg)
+    : wrapper(Env::CleanupHook<Hook, Arg>::WrapperWithArg) {
+  data = new CleanupData{std::move(hook), arg};
+  napi_status status = napi_add_env_cleanup_hook(env, wrapper, data);
+  if (status != napi_ok) {
+    delete data;
+    data = nullptr;
+  }
+}
+
+template <class Hook, class Arg>
+bool Env::CleanupHook<Hook, Arg>::Remove(Env env) {
+  napi_status status = napi_remove_env_cleanup_hook(env, wrapper, data);
+  delete data;
+  data = nullptr;
+  return status == napi_ok;
+}
+
+template <class Hook, class Arg>
+bool Env::CleanupHook<Hook, Arg>::IsEmpty() const {
+  return data == nullptr;
+}
+#endif  // NAPI_VERSION > 2
+
+} // namespace Napi
+
+#endif // SRC_NAPI_INL_H_
diff --git a/node_modules/node-addon-api/napi.h b/node_modules/node-addon-api/napi.h
new file mode 100644
index 0000000..2864306
--- /dev/null
+++ b/node_modules/node-addon-api/napi.h
@@ -0,0 +1,2983 @@
+#ifndef SRC_NAPI_H_
+#define SRC_NAPI_H_
+
+#include <node_api.h>
+#include <functional>
+#include <initializer_list>
+#include <memory>
+#include <mutex>
+#include <string>
+#include <vector>
+
+// VS2015 RTM has bugs with constexpr, so require min of VS2015 Update 3 (known good version)
+#if !defined(_MSC_VER) || _MSC_FULL_VER >= 190024210
+#define NAPI_HAS_CONSTEXPR 1
+#endif
+
+// VS2013 does not support char16_t literal strings, so we'll work around it using wchar_t strings
+// and casting them. This is safe as long as the character sizes are the same.
+#if defined(_MSC_VER) && _MSC_VER <= 1800
+static_assert(sizeof(char16_t) == sizeof(wchar_t), "Size mismatch between char16_t and wchar_t");
+#define NAPI_WIDE_TEXT(x) reinterpret_cast<char16_t*>(L ## x)
+#else
+#define NAPI_WIDE_TEXT(x) u ## x
+#endif
+
+// If C++ exceptions are not explicitly enabled or disabled, enable them
+// if exceptions were enabled in the compiler settings.
+#if !defined(NAPI_CPP_EXCEPTIONS) && !defined(NAPI_DISABLE_CPP_EXCEPTIONS)
+  #if defined(_CPPUNWIND) || defined (__EXCEPTIONS)
+    #define NAPI_CPP_EXCEPTIONS
+  #else
+    #error Exception support not detected. \
+      Define either NAPI_CPP_EXCEPTIONS or NAPI_DISABLE_CPP_EXCEPTIONS.
+  #endif
+#endif
+
+// If C++ NAPI_CPP_EXCEPTIONS are enabled, NODE_ADDON_API_ENABLE_MAYBE should
+// not be set
+#if defined(NAPI_CPP_EXCEPTIONS) && defined(NODE_ADDON_API_ENABLE_MAYBE)
+#error NODE_ADDON_API_ENABLE_MAYBE should not be set when \
+    NAPI_CPP_EXCEPTIONS is defined.
+#endif
+
+#ifdef _NOEXCEPT
+  #define NAPI_NOEXCEPT _NOEXCEPT
+#else
+  #define NAPI_NOEXCEPT noexcept
+#endif
+
+#ifdef NAPI_CPP_EXCEPTIONS
+
+// When C++ exceptions are enabled, Errors are thrown directly. There is no need
+// to return anything after the throw statements. The variadic parameter is an
+// optional return value that is ignored.
+// We need _VOID versions of the macros to avoid warnings resulting from
+// leaving the NAPI_THROW_* `...` argument empty.
+
+#define NAPI_THROW(e, ...)  throw e
+#define NAPI_THROW_VOID(e)  throw e
+
+#define NAPI_THROW_IF_FAILED(env, status, ...)           \
+  if ((status) != napi_ok) throw Napi::Error::New(env);
+
+#define NAPI_THROW_IF_FAILED_VOID(env, status)           \
+  if ((status) != napi_ok) throw Napi::Error::New(env);
+
+#else // NAPI_CPP_EXCEPTIONS
+
+// When C++ exceptions are disabled, Errors are thrown as JavaScript exceptions,
+// which are pending until the callback returns to JS.  The variadic parameter
+// is an optional return value; usually it is an empty result.
+// We need _VOID versions of the macros to avoid warnings resulting from
+// leaving the NAPI_THROW_* `...` argument empty.
+
+#define NAPI_THROW(e, ...)                               \
+  do {                                                   \
+    (e).ThrowAsJavaScriptException();                    \
+    return __VA_ARGS__;                                  \
+  } while (0)
+
+#define NAPI_THROW_VOID(e)                               \
+  do {                                                   \
+    (e).ThrowAsJavaScriptException();                    \
+    return;                                              \
+  } while (0)
+
+#define NAPI_THROW_IF_FAILED(env, status, ...)                                 \
+  if ((status) != napi_ok) {                                                   \
+    Napi::Error::New(env).ThrowAsJavaScriptException();                        \
+    return __VA_ARGS__;                                                        \
+  }
+
+#define NAPI_THROW_IF_FAILED_VOID(env, status)                                 \
+  if ((status) != napi_ok) {                                                   \
+    Napi::Error::New(env).ThrowAsJavaScriptException();                        \
+    return;                                                                    \
+  }
+
+#endif // NAPI_CPP_EXCEPTIONS
+
+#ifdef NODE_ADDON_API_ENABLE_MAYBE
+#define NAPI_MAYBE_THROW_IF_FAILED(env, status, type)                          \
+  NAPI_THROW_IF_FAILED(env, status, Napi::Nothing<type>())
+
+#define NAPI_RETURN_OR_THROW_IF_FAILED(env, status, result, type)              \
+  NAPI_MAYBE_THROW_IF_FAILED(env, status, type);                               \
+  return Napi::Just<type>(result);
+#else
+#define NAPI_MAYBE_THROW_IF_FAILED(env, status, type)                          \
+  NAPI_THROW_IF_FAILED(env, status, type())
+
+#define NAPI_RETURN_OR_THROW_IF_FAILED(env, status, result, type)              \
+  NAPI_MAYBE_THROW_IF_FAILED(env, status, type);                               \
+  return result;
+#endif
+
+# define NAPI_DISALLOW_ASSIGN(CLASS) void operator=(const CLASS&) = delete;
+# define NAPI_DISALLOW_COPY(CLASS) CLASS(const CLASS&) = delete;
+
+#define NAPI_DISALLOW_ASSIGN_COPY(CLASS)  \
+    NAPI_DISALLOW_ASSIGN(CLASS)           \
+    NAPI_DISALLOW_COPY(CLASS)
+
+#define NAPI_CHECK(condition, location, message)                               \
+  do {                                                                         \
+    if (!(condition)) {                                                        \
+      Napi::Error::Fatal((location), (message));                               \
+    }                                                                          \
+  } while (0)
+
+#define NAPI_FATAL_IF_FAILED(status, location, message)                        \
+  NAPI_CHECK((status) == napi_ok, location, message)
+
+////////////////////////////////////////////////////////////////////////////////
+/// Node-API C++ Wrapper Classes
+///
+/// These classes wrap the "Node-API" ABI-stable C APIs for Node.js, providing a
+/// C++ object model and C++ exception-handling semantics with low overhead.
+/// The wrappers are all header-only so that they do not affect the ABI.
+////////////////////////////////////////////////////////////////////////////////
+namespace Napi {
+
+  // Forward declarations
+  class Env;
+  class Value;
+  class Boolean;
+  class Number;
+#if NAPI_VERSION > 5
+  class BigInt;
+#endif  // NAPI_VERSION > 5
+#if (NAPI_VERSION > 4)
+  class Date;
+#endif
+  class String;
+  class Object;
+  class Array;
+  class ArrayBuffer;
+  class Function;
+  class Error;
+  class PropertyDescriptor;
+  class CallbackInfo;
+  class TypedArray;
+  template <typename T> class TypedArrayOf;
+
+  using Int8Array =
+      TypedArrayOf<int8_t>;  ///< Typed-array of signed 8-bit integers
+  using Uint8Array =
+      TypedArrayOf<uint8_t>;  ///< Typed-array of unsigned 8-bit integers
+  using Int16Array =
+      TypedArrayOf<int16_t>;  ///< Typed-array of signed 16-bit integers
+  using Uint16Array =
+      TypedArrayOf<uint16_t>;  ///< Typed-array of unsigned 16-bit integers
+  using Int32Array =
+      TypedArrayOf<int32_t>;  ///< Typed-array of signed 32-bit integers
+  using Uint32Array =
+      TypedArrayOf<uint32_t>;  ///< Typed-array of unsigned 32-bit integers
+  using Float32Array =
+      TypedArrayOf<float>;  ///< Typed-array of 32-bit floating-point values
+  using Float64Array =
+      TypedArrayOf<double>;  ///< Typed-array of 64-bit floating-point values
+#if NAPI_VERSION > 5
+  using BigInt64Array =
+      TypedArrayOf<int64_t>;  ///< Typed array of signed 64-bit integers
+  using BigUint64Array =
+      TypedArrayOf<uint64_t>;  ///< Typed array of unsigned 64-bit integers
+#endif  // NAPI_VERSION > 5
+
+  /// Defines the signature of a Node-API C++ module's registration callback
+  /// (init) function.
+  using ModuleRegisterCallback = Object (*)(Env env, Object exports);
+
+  class MemoryManagement;
+
+  /// A simple Maybe type, representing an object which may or may not have a
+  /// value.
+  ///
+  /// If an API method returns a Maybe<>, the API method can potentially fail
+  /// either because an exception is thrown, or because an exception is pending,
+  /// e.g. because a previous API call threw an exception that hasn't been
+  /// caught yet. In that case, a "Nothing" value is returned.
+  template <class T>
+  class Maybe {
+   public:
+    bool IsNothing() const;
+    bool IsJust() const;
+
+    /// Short-hand for Unwrap(), which doesn't return a value. Could be used
+    /// where the actual value of the Maybe is not needed like Object::Set.
+    /// If this Maybe is nothing (empty), node-addon-api will crash the
+    /// process.
+    void Check() const;
+
+    /// Return the value of type T contained in the Maybe. If this Maybe is
+    /// nothing (empty), node-addon-api will crash the process.
+    T Unwrap() const;
+
+    /// Return the value of type T contained in the Maybe, or using a default
+    /// value if this Maybe is nothing (empty).
+    T UnwrapOr(const T& default_value) const;
+
+    /// Converts this Maybe to a value of type T in the out. If this Maybe is
+    /// nothing (empty), `false` is returned and `out` is left untouched.
+    bool UnwrapTo(T* out) const;
+
+    bool operator==(const Maybe& other) const;
+    bool operator!=(const Maybe& other) const;
+
+   private:
+    Maybe();
+    explicit Maybe(const T& t);
+
+    bool _has_value;
+    T _value;
+
+    template <class U>
+    friend Maybe<U> Nothing();
+    template <class U>
+    friend Maybe<U> Just(const U& u);
+  };
+
+  template <class T>
+  inline Maybe<T> Nothing();
+
+  template <class T>
+  inline Maybe<T> Just(const T& t);
+
+#if defined(NODE_ADDON_API_ENABLE_MAYBE)
+  template <typename T>
+  using MaybeOrValue = Maybe<T>;
+#else
+  template <typename T>
+  using MaybeOrValue = T;
+#endif
+
+  /// Environment for Node-API values and operations.
+  ///
+  /// All Node-API values and operations must be associated with an environment.
+  /// An environment instance is always provided to callback functions; that
+  /// environment must then be used for any creation of Node-API values or other
+  /// Node-API operations within the callback. (Many methods infer the
+  /// environment from the `this` instance that the method is called on.)
+  ///
+  /// In the future, multiple environments per process may be supported,
+  /// although current implementations only support one environment per process.
+  ///
+  /// In the V8 JavaScript engine, a Node-API environment approximately
+  /// corresponds to an Isolate.
+  class Env {
+   private:
+#if NAPI_VERSION > 2
+    template <typename Hook, typename Arg = void>
+    class CleanupHook;
+#endif  // NAPI_VERSION > 2
+#if NAPI_VERSION > 5
+    template <typename T> static void DefaultFini(Env, T* data);
+    template <typename DataType, typename HintType>
+    static void DefaultFiniWithHint(Env, DataType* data, HintType* hint);
+#endif  // NAPI_VERSION > 5
+  public:
+    Env(napi_env env);
+
+    operator napi_env() const;
+
+    Object Global() const;
+    Value Undefined() const;
+    Value Null() const;
+
+    bool IsExceptionPending() const;
+    Error GetAndClearPendingException();
+
+    MaybeOrValue<Value> RunScript(const char* utf8script);
+    MaybeOrValue<Value> RunScript(const std::string& utf8script);
+    MaybeOrValue<Value> RunScript(String script);
+
+#if NAPI_VERSION > 2
+    template <typename Hook>
+    CleanupHook<Hook> AddCleanupHook(Hook hook);
+
+    template <typename Hook, typename Arg>
+    CleanupHook<Hook, Arg> AddCleanupHook(Hook hook, Arg* arg);
+#endif  // NAPI_VERSION > 2
+
+#if NAPI_VERSION > 5
+    template <typename T> T* GetInstanceData();
+
+    template <typename T> using Finalizer = void (*)(Env, T*);
+    template <typename T, Finalizer<T> fini = Env::DefaultFini<T>>
+    void SetInstanceData(T* data);
+
+    template <typename DataType, typename HintType>
+    using FinalizerWithHint = void (*)(Env, DataType*, HintType*);
+    template <typename DataType,
+              typename HintType,
+              FinalizerWithHint<DataType, HintType> fini =
+                Env::DefaultFiniWithHint<DataType, HintType>>
+    void SetInstanceData(DataType* data, HintType* hint);
+#endif  // NAPI_VERSION > 5
+
+  private:
+    napi_env _env;
+
+#if NAPI_VERSION > 2
+    template <typename Hook, typename Arg>
+    class CleanupHook {
+     public:
+      CleanupHook(Env env, Hook hook, Arg* arg);
+      CleanupHook(Env env, Hook hook);
+      bool Remove(Env env);
+      bool IsEmpty() const;
+
+     private:
+      static inline void Wrapper(void* data) NAPI_NOEXCEPT;
+      static inline void WrapperWithArg(void* data) NAPI_NOEXCEPT;
+
+      void (*wrapper)(void* arg);
+      struct CleanupData {
+        Hook hook;
+        Arg* arg;
+      } * data;
+    };
+  };
+#endif  // NAPI_VERSION > 2
+
+  /// A JavaScript value of unknown type.
+  ///
+  /// For type-specific operations, convert to one of the Value subclasses using a `To*` or `As()`
+  /// method. The `To*` methods do type coercion; the `As()` method does not.
+  ///
+  ///     Napi::Value value = ...
+  ///     if (!value.IsString()) throw Napi::TypeError::New(env, "Invalid arg...");
+  ///     Napi::String str = value.As<Napi::String>(); // Cast to a string value
+  ///
+  ///     Napi::Value anotherValue = ...
+  ///     bool isTruthy = anotherValue.ToBoolean(); // Coerce to a boolean value
+  class Value {
+  public:
+    Value();                               ///< Creates a new _empty_ Value instance.
+    Value(napi_env env,
+          napi_value value);  ///< Wraps a Node-API value primitive.
+
+    /// Creates a JS value from a C++ primitive.
+    ///
+    /// `value` may be any of:
+    /// - bool
+    /// - Any integer type
+    /// - Any floating point type
+    /// - const char* (encoded using UTF-8, null-terminated)
+    /// - const char16_t* (encoded using UTF-16-LE, null-terminated)
+    /// - std::string (encoded using UTF-8)
+    /// - std::u16string
+    /// - napi::Value
+    /// - napi_value
+    template <typename T>
+    static Value From(napi_env env, const T& value);
+
+    /// Converts to a Node-API value primitive.
+    ///
+    /// If the instance is _empty_, this returns `nullptr`.
+    operator napi_value() const;
+
+    /// Tests if this value strictly equals another value.
+    bool operator ==(const Value& other) const;
+
+    /// Tests if this value does not strictly equal another value.
+    bool operator !=(const Value& other) const;
+
+    /// Tests if this value strictly equals another value.
+    bool StrictEquals(const Value& other) const;
+
+    /// Gets the environment the value is associated with.
+    Napi::Env Env() const;
+
+    /// Checks if the value is empty (uninitialized).
+    ///
+    /// An empty value is invalid, and most attempts to perform an operation on an empty value
+    /// will result in an exception. Note an empty value is distinct from JavaScript `null` or
+    /// `undefined`, which are valid values.
+    ///
+    /// When C++ exceptions are disabled at compile time, a method with a `Value` return type may
+    /// return an empty value to indicate a pending exception. So when not using C++ exceptions,
+    /// callers should check whether the value is empty before attempting to use it.
+    bool IsEmpty() const;
+
+    napi_valuetype Type() const; ///< Gets the type of the value.
+
+    bool IsUndefined() const;   ///< Tests if a value is an undefined JavaScript value.
+    bool IsNull() const;        ///< Tests if a value is a null JavaScript value.
+    bool IsBoolean() const;     ///< Tests if a value is a JavaScript boolean.
+    bool IsNumber() const;      ///< Tests if a value is a JavaScript number.
+#if NAPI_VERSION > 5
+    bool IsBigInt() const;      ///< Tests if a value is a JavaScript bigint.
+#endif  // NAPI_VERSION > 5
+#if (NAPI_VERSION > 4)
+    bool IsDate() const;        ///< Tests if a value is a JavaScript date.
+#endif
+    bool IsString() const;      ///< Tests if a value is a JavaScript string.
+    bool IsSymbol() const;      ///< Tests if a value is a JavaScript symbol.
+    bool IsArray() const;       ///< Tests if a value is a JavaScript array.
+    bool IsArrayBuffer() const; ///< Tests if a value is a JavaScript array buffer.
+    bool IsTypedArray() const;  ///< Tests if a value is a JavaScript typed array.
+    bool IsObject() const;      ///< Tests if a value is a JavaScript object.
+    bool IsFunction() const;    ///< Tests if a value is a JavaScript function.
+    bool IsPromise() const;     ///< Tests if a value is a JavaScript promise.
+    bool IsDataView() const;    ///< Tests if a value is a JavaScript data view.
+    bool IsBuffer() const;      ///< Tests if a value is a Node buffer.
+    bool IsExternal() const;    ///< Tests if a value is a pointer to external data.
+
+    /// Casts to another type of `Napi::Value`, when the actual type is known or assumed.
+    ///
+    /// This conversion does NOT coerce the type. Calling any methods inappropriate for the actual
+    /// value type will throw `Napi::Error`.
+    template <typename T> T As() const;
+
+    MaybeOrValue<Boolean> ToBoolean()
+        const;  ///< Coerces a value to a JavaScript boolean.
+    MaybeOrValue<Number> ToNumber()
+        const;  ///< Coerces a value to a JavaScript number.
+    MaybeOrValue<String> ToString()
+        const;  ///< Coerces a value to a JavaScript string.
+    MaybeOrValue<Object> ToObject()
+        const;  ///< Coerces a value to a JavaScript object.
+
+   protected:
+    /// !cond INTERNAL
+    napi_env _env;
+    napi_value _value;
+    /// !endcond
+  };
+
+  /// A JavaScript boolean value.
+  class Boolean : public Value {
+  public:
+   static Boolean New(napi_env env,  ///< Node-API environment
+                      bool value     ///< Boolean value
+   );
+
+   Boolean();  ///< Creates a new _empty_ Boolean instance.
+   Boolean(napi_env env,
+           napi_value value);  ///< Wraps a Node-API value primitive.
+
+   operator bool() const;  ///< Converts a Boolean value to a boolean primitive.
+   bool Value() const;     ///< Converts a Boolean value to a boolean primitive.
+  };
+
+  /// A JavaScript number value.
+  class Number : public Value {
+  public:
+   static Number New(napi_env env,  ///< Node-API environment
+                     double value   ///< Number value
+   );
+
+   Number();  ///< Creates a new _empty_ Number instance.
+   Number(napi_env env,
+          napi_value value);  ///< Wraps a Node-API value primitive.
+
+   operator int32_t()
+       const;  ///< Converts a Number value to a 32-bit signed integer value.
+   operator uint32_t()
+       const;  ///< Converts a Number value to a 32-bit unsigned integer value.
+   operator int64_t()
+       const;  ///< Converts a Number value to a 64-bit signed integer value.
+   operator float()
+       const;  ///< Converts a Number value to a 32-bit floating-point value.
+   operator double()
+       const;  ///< Converts a Number value to a 64-bit floating-point value.
+
+   int32_t Int32Value()
+       const;  ///< Converts a Number value to a 32-bit signed integer value.
+   uint32_t Uint32Value()
+       const;  ///< Converts a Number value to a 32-bit unsigned integer value.
+   int64_t Int64Value()
+       const;  ///< Converts a Number value to a 64-bit signed integer value.
+   float FloatValue()
+       const;  ///< Converts a Number value to a 32-bit floating-point value.
+   double DoubleValue()
+       const;  ///< Converts a Number value to a 64-bit floating-point value.
+  };
+
+#if NAPI_VERSION > 5
+  /// A JavaScript bigint value.
+  class BigInt : public Value {
+  public:
+   static BigInt New(napi_env env,  ///< Node-API environment
+                     int64_t value  ///< Number value
+   );
+   static BigInt New(napi_env env,   ///< Node-API environment
+                     uint64_t value  ///< Number value
+   );
+
+   /// Creates a new BigInt object using a specified sign bit and a
+   /// specified list of digits/words.
+   /// The resulting number is calculated as:
+   /// (-1)^sign_bit * (words[0] * (2^64)^0 + words[1] * (2^64)^1 + ...)
+   static BigInt New(napi_env env,          ///< Node-API environment
+                     int sign_bit,          ///< Sign bit. 1 if negative.
+                     size_t word_count,     ///< Number of words in array
+                     const uint64_t* words  ///< Array of words
+   );
+
+   BigInt();  ///< Creates a new _empty_ BigInt instance.
+   BigInt(napi_env env,
+          napi_value value);  ///< Wraps a Node-API value primitive.
+
+   int64_t Int64Value(bool* lossless)
+       const;  ///< Converts a BigInt value to a 64-bit signed integer value.
+   uint64_t Uint64Value(bool* lossless)
+       const;  ///< Converts a BigInt value to a 64-bit unsigned integer value.
+
+   size_t WordCount() const;  ///< The number of 64-bit words needed to store
+                              ///< the result of ToWords().
+
+   /// Writes the contents of this BigInt to a specified memory location.
+   /// `sign_bit` must be provided and will be set to 1 if this BigInt is
+   /// negative.
+   /// `*word_count` has to be initialized to the length of the `words` array.
+   /// Upon return, it will be set to the actual number of words that would
+   /// be needed to store this BigInt (i.e. the return value of `WordCount()`).
+   void ToWords(int* sign_bit, size_t* word_count, uint64_t* words);
+  };
+#endif  // NAPI_VERSION > 5
+
+#if (NAPI_VERSION > 4)
+  /// A JavaScript date value.
+  class Date : public Value {
+  public:
+    /// Creates a new Date value from a double primitive.
+   static Date New(napi_env env,  ///< Node-API environment
+                   double value   ///< Number value
+   );
+
+   Date();  ///< Creates a new _empty_ Date instance.
+   Date(napi_env env, napi_value value);  ///< Wraps a Node-API value primitive.
+   operator double() const;  ///< Converts a Date value to double primitive
+
+   double ValueOf() const;  ///< Converts a Date value to a double primitive.
+  };
+  #endif
+
+  /// A JavaScript string or symbol value (that can be used as a property name).
+  class Name : public Value {
+  public:
+    Name();                               ///< Creates a new _empty_ Name instance.
+    Name(napi_env env,
+         napi_value value);  ///< Wraps a Node-API value primitive.
+  };
+
+  /// A JavaScript string value.
+  class String : public Name {
+  public:
+    /// Creates a new String value from a UTF-8 encoded C++ string.
+   static String New(napi_env env,             ///< Node-API environment
+                     const std::string& value  ///< UTF-8 encoded C++ string
+   );
+
+   /// Creates a new String value from a UTF-16 encoded C++ string.
+   static String New(napi_env env,                ///< Node-API environment
+                     const std::u16string& value  ///< UTF-16 encoded C++ string
+   );
+
+   /// Creates a new String value from a UTF-8 encoded C string.
+   static String New(
+       napi_env env,      ///< Node-API environment
+       const char* value  ///< UTF-8 encoded null-terminated C string
+   );
+
+   /// Creates a new String value from a UTF-16 encoded C string.
+   static String New(
+       napi_env env,          ///< Node-API environment
+       const char16_t* value  ///< UTF-16 encoded null-terminated C string
+   );
+
+   /// Creates a new String value from a UTF-8 encoded C string with specified
+   /// length.
+   static String New(napi_env env,       ///< Node-API environment
+                     const char* value,  ///< UTF-8 encoded C string (not
+                                         ///< necessarily null-terminated)
+                     size_t length       ///< length of the string in bytes
+   );
+
+   /// Creates a new String value from a UTF-16 encoded C string with specified
+   /// length.
+   static String New(
+       napi_env env,           ///< Node-API environment
+       const char16_t* value,  ///< UTF-16 encoded C string (not necessarily
+                               ///< null-terminated)
+       size_t length           ///< Length of the string in 2-byte code units
+   );
+
+   /// Creates a new String based on the original object's type.
+   ///
+   /// `value` may be any of:
+   /// - const char* (encoded using UTF-8, null-terminated)
+   /// - const char16_t* (encoded using UTF-16-LE, null-terminated)
+   /// - std::string (encoded using UTF-8)
+   /// - std::u16string
+   template <typename T>
+   static String From(napi_env env, const T& value);
+
+   String();  ///< Creates a new _empty_ String instance.
+   String(napi_env env,
+          napi_value value);  ///< Wraps a Node-API value primitive.
+
+   operator std::string()
+       const;  ///< Converts a String value to a UTF-8 encoded C++ string.
+   operator std::u16string()
+       const;  ///< Converts a String value to a UTF-16 encoded C++ string.
+   std::string Utf8Value()
+       const;  ///< Converts a String value to a UTF-8 encoded C++ string.
+   std::u16string Utf16Value()
+       const;  ///< Converts a String value to a UTF-16 encoded C++ string.
+  };
+
+  /// A JavaScript symbol value.
+  class Symbol : public Name {
+  public:
+    /// Creates a new Symbol value with an optional description.
+   static Symbol New(
+       napi_env env,  ///< Node-API environment
+       const char* description =
+           nullptr  ///< Optional UTF-8 encoded null-terminated C string
+                    ///  describing the symbol
+   );
+
+   /// Creates a new Symbol value with a description.
+   static Symbol New(
+       napi_env env,  ///< Node-API environment
+       const std::string&
+           description  ///< UTF-8 encoded C++ string describing the symbol
+   );
+
+   /// Creates a new Symbol value with a description.
+   static Symbol New(napi_env env,       ///< Node-API environment
+                     String description  ///< String value describing the symbol
+   );
+
+   /// Creates a new Symbol value with a description.
+   static Symbol New(
+       napi_env env,           ///< Node-API environment
+       napi_value description  ///< String value describing the symbol
+   );
+
+   /// Get a public Symbol (e.g. Symbol.iterator).
+   static MaybeOrValue<Symbol> WellKnown(napi_env, const std::string& name);
+
+   // Create a symbol in the global registry, UTF-8 Encoded cpp string
+   static MaybeOrValue<Symbol> For(napi_env env,
+                                   const std::string& description);
+
+   // Create a symbol in the global registry, C style string (null terminated)
+   static MaybeOrValue<Symbol> For(napi_env env, const char* description);
+
+   // Create a symbol in the global registry, String value describing the symbol
+   static MaybeOrValue<Symbol> For(napi_env env, String description);
+
+   // Create a symbol in the global registry, napi_value describing the symbol
+   static MaybeOrValue<Symbol> For(napi_env env, napi_value description);
+
+   Symbol();  ///< Creates a new _empty_ Symbol instance.
+   Symbol(napi_env env,
+          napi_value value);  ///< Wraps a Node-API value primitive.
+  };
+
+  /// A JavaScript object value.
+  class Object : public Value {
+  public:
+   /// Enables property and element assignments using indexing syntax.
+   ///
+   /// This is a convenient helper to get and set object properties. As
+   /// getting and setting object properties may throw with JavaScript
+   /// exceptions, it is notable that these operations may fail.
+   /// When NODE_ADDON_API_ENABLE_MAYBE is defined, the process will abort
+   /// on JavaScript exceptions.
+   ///
+   /// Example:
+   ///
+   ///     Napi::Value propertyValue = object1['A'];
+   ///     object2['A'] = propertyValue;
+   ///     Napi::Value elementValue = array[0];
+   ///     array[1] = elementValue;
+   template <typename Key>
+   class PropertyLValue {
+    public:
+      /// Converts an L-value to a value.
+      operator Value() const;
+
+      /// Assigns a value to the property. The type of value can be
+      /// anything supported by `Object::Set`.
+      template <typename ValueType>
+      PropertyLValue& operator =(ValueType value);
+
+    private:
+      PropertyLValue() = delete;
+      PropertyLValue(Object object, Key key);
+      napi_env _env;
+      napi_value _object;
+      Key _key;
+
+      friend class Napi::Object;
+   };
+
+    /// Creates a new Object value.
+    static Object New(napi_env env  ///< Node-API environment
+    );
+
+    Object();                               ///< Creates a new _empty_ Object instance.
+    Object(napi_env env,
+           napi_value value);  ///< Wraps a Node-API value primitive.
+
+    /// Gets or sets a named property.
+    PropertyLValue<std::string> operator [](
+      const char* utf8name ///< UTF-8 encoded null-terminated property name
+    );
+
+    /// Gets or sets a named property.
+    PropertyLValue<std::string> operator [](
+      const std::string& utf8name ///< UTF-8 encoded property name
+    );
+
+    /// Gets or sets an indexed property or array element.
+    PropertyLValue<uint32_t> operator [](
+      uint32_t index /// Property / element index
+    );
+
+    /// Gets or sets an indexed property or array element.
+    PropertyLValue<Value> operator[](Value index  /// Property / element index
+    );
+
+    /// Gets or sets an indexed property or array element.
+    PropertyLValue<Value> operator[](Value index  /// Property / element index
+    ) const;
+
+    /// Gets a named property.
+    MaybeOrValue<Value> operator[](
+        const char* utf8name  ///< UTF-8 encoded null-terminated property name
+    ) const;
+
+    /// Gets a named property.
+    MaybeOrValue<Value> operator[](
+        const std::string& utf8name  ///< UTF-8 encoded property name
+    ) const;
+
+    /// Gets an indexed property or array element.
+    MaybeOrValue<Value> operator[](uint32_t index  ///< Property / element index
+    ) const;
+
+    /// Checks whether a property is present.
+    MaybeOrValue<bool> Has(napi_value key  ///< Property key primitive
+    ) const;
+
+    /// Checks whether a property is present.
+    MaybeOrValue<bool> Has(Value key  ///< Property key
+    ) const;
+
+    /// Checks whether a named property is present.
+    MaybeOrValue<bool> Has(
+        const char* utf8name  ///< UTF-8 encoded null-terminated property name
+    ) const;
+
+    /// Checks whether a named property is present.
+    MaybeOrValue<bool> Has(
+        const std::string& utf8name  ///< UTF-8 encoded property name
+    ) const;
+
+    /// Checks whether a own property is present.
+    MaybeOrValue<bool> HasOwnProperty(
+        napi_value key  ///< Property key primitive
+    ) const;
+
+    /// Checks whether a own property is present.
+    MaybeOrValue<bool> HasOwnProperty(Value key  ///< Property key
+    ) const;
+
+    /// Checks whether a own property is present.
+    MaybeOrValue<bool> HasOwnProperty(
+        const char* utf8name  ///< UTF-8 encoded null-terminated property name
+    ) const;
+
+    /// Checks whether a own property is present.
+    MaybeOrValue<bool> HasOwnProperty(
+        const std::string& utf8name  ///< UTF-8 encoded property name
+    ) const;
+
+    /// Gets a property.
+    MaybeOrValue<Value> Get(napi_value key  ///< Property key primitive
+    ) const;
+
+    /// Gets a property.
+    MaybeOrValue<Value> Get(Value key  ///< Property key
+    ) const;
+
+    /// Gets a named property.
+    MaybeOrValue<Value> Get(
+        const char* utf8name  ///< UTF-8 encoded null-terminated property name
+    ) const;
+
+    /// Gets a named property.
+    MaybeOrValue<Value> Get(
+        const std::string& utf8name  ///< UTF-8 encoded property name
+    ) const;
+
+    /// Sets a property.
+    template <typename ValueType>
+    MaybeOrValue<bool> Set(napi_value key,         ///< Property key primitive
+                           const ValueType& value  ///< Property value primitive
+    );
+
+    /// Sets a property.
+    template <typename ValueType>
+    MaybeOrValue<bool> Set(Value key,              ///< Property key
+                           const ValueType& value  ///< Property value
+    );
+
+    /// Sets a named property.
+    template <typename ValueType>
+    MaybeOrValue<bool> Set(
+        const char* utf8name,  ///< UTF-8 encoded null-terminated property name
+        const ValueType& value);
+
+    /// Sets a named property.
+    template <typename ValueType>
+    MaybeOrValue<bool> Set(
+        const std::string& utf8name,  ///< UTF-8 encoded property name
+        const ValueType& value        ///< Property value primitive
+    );
+
+    /// Delete property.
+    MaybeOrValue<bool> Delete(napi_value key  ///< Property key primitive
+    );
+
+    /// Delete property.
+    MaybeOrValue<bool> Delete(Value key  ///< Property key
+    );
+
+    /// Delete property.
+    MaybeOrValue<bool> Delete(
+        const char* utf8name  ///< UTF-8 encoded null-terminated property name
+    );
+
+    /// Delete property.
+    MaybeOrValue<bool> Delete(
+        const std::string& utf8name  ///< UTF-8 encoded property name
+    );
+
+    /// Checks whether an indexed property is present.
+    MaybeOrValue<bool> Has(uint32_t index  ///< Property / element index
+    ) const;
+
+    /// Gets an indexed property or array element.
+    MaybeOrValue<Value> Get(uint32_t index  ///< Property / element index
+    ) const;
+
+    /// Sets an indexed property or array element.
+    template <typename ValueType>
+    MaybeOrValue<bool> Set(uint32_t index,         ///< Property / element index
+                           const ValueType& value  ///< Property value primitive
+    );
+
+    /// Deletes an indexed property or array element.
+    MaybeOrValue<bool> Delete(uint32_t index  ///< Property / element index
+    );
+
+    /// This operation can fail in case of Proxy.[[OwnPropertyKeys]] and
+    /// Proxy.[[GetOwnProperty]] calling into JavaScript. See:
+    /// -
+    /// https://tc39.es/ecma262/#sec-proxy-object-internal-methods-and-internal-slots-ownpropertykeys
+    /// -
+    /// https://tc39.es/ecma262/#sec-proxy-object-internal-methods-and-internal-slots-getownproperty-p
+    MaybeOrValue<Array> GetPropertyNames() const;  ///< Get all property names
+
+    /// Defines a property on the object.
+    ///
+    /// This operation can fail in case of Proxy.[[DefineOwnProperty]] calling
+    /// into JavaScript. See
+    /// https://tc39.es/ecma262/#sec-proxy-object-internal-methods-and-internal-slots-defineownproperty-p-desc
+    MaybeOrValue<bool> DefineProperty(
+        const PropertyDescriptor&
+            property  ///< Descriptor for the property to be defined
+    );
+
+    /// Defines properties on the object.
+    ///
+    /// This operation can fail in case of Proxy.[[DefineOwnProperty]] calling
+    /// into JavaScript. See
+    /// https://tc39.es/ecma262/#sec-proxy-object-internal-methods-and-internal-slots-defineownproperty-p-desc
+    MaybeOrValue<bool> DefineProperties(
+        const std::initializer_list<PropertyDescriptor>& properties
+        ///< List of descriptors for the properties to be defined
+    );
+
+    /// Defines properties on the object.
+    ///
+    /// This operation can fail in case of Proxy.[[DefineOwnProperty]] calling
+    /// into JavaScript. See
+    /// https://tc39.es/ecma262/#sec-proxy-object-internal-methods-and-internal-slots-defineownproperty-p-desc
+    MaybeOrValue<bool> DefineProperties(
+        const std::vector<PropertyDescriptor>& properties
+        ///< Vector of descriptors for the properties to be defined
+    );
+
+    /// Checks if an object is an instance created by a constructor function.
+    ///
+    /// This is equivalent to the JavaScript `instanceof` operator.
+    ///
+    /// This operation can fail in case of Proxy.[[GetPrototypeOf]] calling into
+    /// JavaScript.
+    /// See
+    /// https://tc39.es/ecma262/#sec-proxy-object-internal-methods-and-internal-slots-getprototypeof
+    MaybeOrValue<bool> InstanceOf(
+        const Function& constructor  ///< Constructor function
+    ) const;
+
+    template <typename Finalizer, typename T>
+    inline void AddFinalizer(Finalizer finalizeCallback, T* data);
+
+    template <typename Finalizer, typename T, typename Hint>
+    inline void AddFinalizer(Finalizer finalizeCallback,
+                             T* data,
+                             Hint* finalizeHint);
+
+#ifdef NAPI_CPP_EXCEPTIONS
+    class const_iterator;
+
+    inline const_iterator begin() const;
+
+    inline const_iterator end() const;
+
+    class iterator;
+
+    inline iterator begin();
+
+    inline iterator end();
+#endif  // NAPI_CPP_EXCEPTIONS
+
+#if NAPI_VERSION >= 8
+    /// This operation can fail in case of Proxy.[[GetPrototypeOf]] calling into
+    /// JavaScript.
+    /// See
+    /// https://tc39.es/ecma262/#sec-proxy-object-internal-methods-and-internal-slots-getprototypeof
+    MaybeOrValue<bool> Freeze();
+    /// This operation can fail in case of Proxy.[[GetPrototypeOf]] calling into
+    /// JavaScript.
+    /// See
+    /// https://tc39.es/ecma262/#sec-proxy-object-internal-methods-and-internal-slots-getprototypeof
+    MaybeOrValue<bool> Seal();
+#endif  // NAPI_VERSION >= 8
+  };
+
+  template <typename T>
+  class External : public Value {
+  public:
+    static External New(napi_env env, T* data);
+
+    // Finalizer must implement `void operator()(Env env, T* data)`.
+    template <typename Finalizer>
+    static External New(napi_env env,
+                        T* data,
+                        Finalizer finalizeCallback);
+    // Finalizer must implement `void operator()(Env env, T* data, Hint* hint)`.
+    template <typename Finalizer, typename Hint>
+    static External New(napi_env env,
+                        T* data,
+                        Finalizer finalizeCallback,
+                        Hint* finalizeHint);
+
+    External();
+    External(napi_env env, napi_value value);
+
+    T* Data() const;
+  };
+
+  class Array : public Object {
+  public:
+    static Array New(napi_env env);
+    static Array New(napi_env env, size_t length);
+
+    Array();
+    Array(napi_env env, napi_value value);
+
+    uint32_t Length() const;
+  };
+
+#ifdef NAPI_CPP_EXCEPTIONS
+  class Object::const_iterator {
+   private:
+    enum class Type { BEGIN, END };
+
+    inline const_iterator(const Object* object, const Type type);
+
+   public:
+    inline const_iterator& operator++();
+
+    inline bool operator==(const const_iterator& other) const;
+
+    inline bool operator!=(const const_iterator& other) const;
+
+    inline const std::pair<Value, Object::PropertyLValue<Value>> operator*()
+        const;
+
+   private:
+    const Napi::Object* _object;
+    Array _keys;
+    uint32_t _index;
+
+    friend class Object;
+  };
+
+  class Object::iterator {
+   private:
+    enum class Type { BEGIN, END };
+
+    inline iterator(Object* object, const Type type);
+
+   public:
+    inline iterator& operator++();
+
+    inline bool operator==(const iterator& other) const;
+
+    inline bool operator!=(const iterator& other) const;
+
+    inline std::pair<Value, Object::PropertyLValue<Value>> operator*();
+
+   private:
+    Napi::Object* _object;
+    Array _keys;
+    uint32_t _index;
+
+    friend class Object;
+  };
+#endif  // NAPI_CPP_EXCEPTIONS
+
+  /// A JavaScript array buffer value.
+  class ArrayBuffer : public Object {
+  public:
+    /// Creates a new ArrayBuffer instance over a new automatically-allocated buffer.
+   static ArrayBuffer New(
+       napi_env env,      ///< Node-API environment
+       size_t byteLength  ///< Length of the buffer to be allocated, in bytes
+   );
+
+   /// Creates a new ArrayBuffer instance, using an external buffer with
+   /// specified byte length.
+   static ArrayBuffer New(
+       napi_env env,        ///< Node-API environment
+       void* externalData,  ///< Pointer to the external buffer to be used by
+                            ///< the array
+       size_t byteLength    ///< Length of the external buffer to be used by the
+                            ///< array, in bytes
+   );
+
+   /// Creates a new ArrayBuffer instance, using an external buffer with
+   /// specified byte length.
+   template <typename Finalizer>
+   static ArrayBuffer New(
+       napi_env env,        ///< Node-API environment
+       void* externalData,  ///< Pointer to the external buffer to be used by
+                            ///< the array
+       size_t byteLength,   ///< Length of the external buffer to be used by the
+                            ///< array,
+                            ///  in bytes
+       Finalizer finalizeCallback  ///< Function to be called when the array
+                                   ///< buffer is destroyed;
+                                   ///  must implement `void operator()(Env env,
+                                   ///  void* externalData)`
+   );
+
+   /// Creates a new ArrayBuffer instance, using an external buffer with
+   /// specified byte length.
+   template <typename Finalizer, typename Hint>
+   static ArrayBuffer New(
+       napi_env env,        ///< Node-API environment
+       void* externalData,  ///< Pointer to the external buffer to be used by
+                            ///< the array
+       size_t byteLength,   ///< Length of the external buffer to be used by the
+                            ///< array,
+                            ///  in bytes
+       Finalizer finalizeCallback,  ///< Function to be called when the array
+                                    ///< buffer is destroyed;
+                                    ///  must implement `void operator()(Env
+                                    ///  env, void* externalData, Hint* hint)`
+       Hint* finalizeHint  ///< Hint (second parameter) to be passed to the
+                           ///< finalize callback
+   );
+
+   ArrayBuffer();  ///< Creates a new _empty_ ArrayBuffer instance.
+   ArrayBuffer(napi_env env,
+               napi_value value);  ///< Wraps a Node-API value primitive.
+
+   void* Data();         ///< Gets a pointer to the data buffer.
+   size_t ByteLength();  ///< Gets the length of the array buffer in bytes.
+
+#if NAPI_VERSION >= 7
+    bool IsDetached() const;
+    void Detach();
+#endif  // NAPI_VERSION >= 7
+  };
+
+  /// A JavaScript typed-array value with unknown array type.
+  ///
+  /// For type-specific operations, cast to a `TypedArrayOf<T>` instance using the `As()`
+  /// method:
+  ///
+  ///     Napi::TypedArray array = ...
+  ///     if (t.TypedArrayType() == napi_int32_array) {
+  ///         Napi::Int32Array int32Array = t.As<Napi::Int32Array>();
+  ///     }
+  class TypedArray : public Object {
+  public:
+    TypedArray();                               ///< Creates a new _empty_ TypedArray instance.
+    TypedArray(napi_env env,
+               napi_value value);  ///< Wraps a Node-API value primitive.
+
+    napi_typedarray_type TypedArrayType() const; ///< Gets the type of this typed-array.
+    Napi::ArrayBuffer ArrayBuffer() const;       ///< Gets the backing array buffer.
+
+    uint8_t ElementSize() const;  ///< Gets the size in bytes of one element in the array.
+    size_t ElementLength() const; ///< Gets the number of elements in the array.
+    size_t ByteOffset() const;    ///< Gets the offset into the buffer where the array starts.
+    size_t ByteLength() const;    ///< Gets the length of the array in bytes.
+
+  protected:
+    /// !cond INTERNAL
+    napi_typedarray_type _type;
+    size_t _length;
+
+    TypedArray(napi_env env, napi_value value, napi_typedarray_type type, size_t length);
+
+    static const napi_typedarray_type unknown_array_type = static_cast<napi_typedarray_type>(-1);
+
+    template <typename T>
+    static
+#if defined(NAPI_HAS_CONSTEXPR)
+    constexpr
+#endif
+    napi_typedarray_type TypedArrayTypeForPrimitiveType() {
+      return std::is_same<T, int8_t>::value ? napi_int8_array
+        : std::is_same<T, uint8_t>::value ? napi_uint8_array
+        : std::is_same<T, int16_t>::value ? napi_int16_array
+        : std::is_same<T, uint16_t>::value ? napi_uint16_array
+        : std::is_same<T, int32_t>::value ? napi_int32_array
+        : std::is_same<T, uint32_t>::value ? napi_uint32_array
+        : std::is_same<T, float>::value ? napi_float32_array
+        : std::is_same<T, double>::value ? napi_float64_array
+#if NAPI_VERSION > 5
+        : std::is_same<T, int64_t>::value ? napi_bigint64_array
+        : std::is_same<T, uint64_t>::value ? napi_biguint64_array
+#endif  // NAPI_VERSION > 5
+        : unknown_array_type;
+    }
+    /// !endcond
+  };
+
+  /// A JavaScript typed-array value with known array type.
+  ///
+  /// Note while it is possible to create and access Uint8 "clamped" arrays using this class,
+  /// the _clamping_ behavior is only applied in JavaScript.
+  template <typename T>
+  class TypedArrayOf : public TypedArray {
+  public:
+    /// Creates a new TypedArray instance over a new automatically-allocated array buffer.
+    ///
+    /// The array type parameter can normally be omitted (because it is inferred from the template
+    /// parameter T), except when creating a "clamped" array:
+    ///
+    ///     Uint8Array::New(env, length, napi_uint8_clamped_array)
+   static TypedArrayOf New(
+       napi_env env,          ///< Node-API environment
+       size_t elementLength,  ///< Length of the created array, as a number of
+                              ///< elements
+#if defined(NAPI_HAS_CONSTEXPR)
+       napi_typedarray_type type =
+           TypedArray::TypedArrayTypeForPrimitiveType<T>()
+#else
+       napi_typedarray_type type
+#endif
+       ///< Type of array, if different from the default array type for the
+       ///< template parameter T.
+   );
+
+    /// Creates a new TypedArray instance over a provided array buffer.
+    ///
+    /// The array type parameter can normally be omitted (because it is inferred from the template
+    /// parameter T), except when creating a "clamped" array:
+    ///
+    ///     Uint8Array::New(env, length, buffer, 0, napi_uint8_clamped_array)
+   static TypedArrayOf New(
+       napi_env env,          ///< Node-API environment
+       size_t elementLength,  ///< Length of the created array, as a number of
+                              ///< elements
+       Napi::ArrayBuffer arrayBuffer,  ///< Backing array buffer instance to use
+       size_t bufferOffset,  ///< Offset into the array buffer where the
+                             ///< typed-array starts
+#if defined(NAPI_HAS_CONSTEXPR)
+       napi_typedarray_type type =
+           TypedArray::TypedArrayTypeForPrimitiveType<T>()
+#else
+       napi_typedarray_type type
+#endif
+       ///< Type of array, if different from the default array type for the
+       ///< template parameter T.
+   );
+
+    TypedArrayOf();                               ///< Creates a new _empty_ TypedArrayOf instance.
+    TypedArrayOf(napi_env env,
+                 napi_value value);  ///< Wraps a Node-API value primitive.
+
+    T& operator [](size_t index);             ///< Gets or sets an element in the array.
+    const T& operator [](size_t index) const; ///< Gets an element in the array.
+
+    /// Gets a pointer to the array's backing buffer.
+    ///
+    /// This is not necessarily the same as the `ArrayBuffer::Data()` pointer, because the
+    /// typed-array may have a non-zero `ByteOffset()` into the `ArrayBuffer`.
+    T* Data();
+
+    /// Gets a pointer to the array's backing buffer.
+    ///
+    /// This is not necessarily the same as the `ArrayBuffer::Data()` pointer, because the
+    /// typed-array may have a non-zero `ByteOffset()` into the `ArrayBuffer`.
+    const T* Data() const;
+
+  private:
+    T* _data;
+
+    TypedArrayOf(napi_env env,
+                 napi_value value,
+                 napi_typedarray_type type,
+                 size_t length,
+                 T* data);
+  };
+
+  /// The DataView provides a low-level interface for reading/writing multiple
+  /// number types in an ArrayBuffer irrespective of the platform's endianness.
+  class DataView : public Object {
+  public:
+    static DataView New(napi_env env,
+                        Napi::ArrayBuffer arrayBuffer);
+    static DataView New(napi_env env,
+                        Napi::ArrayBuffer arrayBuffer,
+                        size_t byteOffset);
+    static DataView New(napi_env env,
+                        Napi::ArrayBuffer arrayBuffer,
+                        size_t byteOffset,
+                        size_t byteLength);
+
+    DataView();                               ///< Creates a new _empty_ DataView instance.
+    DataView(napi_env env,
+             napi_value value);  ///< Wraps a Node-API value primitive.
+
+    Napi::ArrayBuffer ArrayBuffer() const;    ///< Gets the backing array buffer.
+    size_t ByteOffset() const;    ///< Gets the offset into the buffer where the array starts.
+    size_t ByteLength() const;    ///< Gets the length of the array in bytes.
+
+    void* Data() const;
+
+    float GetFloat32(size_t byteOffset) const;
+    double GetFloat64(size_t byteOffset) const;
+    int8_t GetInt8(size_t byteOffset) const;
+    int16_t GetInt16(size_t byteOffset) const;
+    int32_t GetInt32(size_t byteOffset) const;
+    uint8_t GetUint8(size_t byteOffset) const;
+    uint16_t GetUint16(size_t byteOffset) const;
+    uint32_t GetUint32(size_t byteOffset) const;
+
+    void SetFloat32(size_t byteOffset, float value) const;
+    void SetFloat64(size_t byteOffset, double value) const;
+    void SetInt8(size_t byteOffset, int8_t value) const;
+    void SetInt16(size_t byteOffset, int16_t value) const;
+    void SetInt32(size_t byteOffset, int32_t value) const;
+    void SetUint8(size_t byteOffset, uint8_t value) const;
+    void SetUint16(size_t byteOffset, uint16_t value) const;
+    void SetUint32(size_t byteOffset, uint32_t value) const;
+
+  private:
+    template <typename T>
+    T ReadData(size_t byteOffset) const;
+
+    template <typename T>
+    void WriteData(size_t byteOffset, T value) const;
+
+    void* _data;
+    size_t _length;
+  };
+
+  class Function : public Object {
+  public:
+   using VoidCallback = void (*)(const CallbackInfo& info);
+   using Callback = Value (*)(const CallbackInfo& info);
+
+   template <VoidCallback cb>
+   static Function New(napi_env env,
+                       const char* utf8name = nullptr,
+                       void* data = nullptr);
+
+   template <Callback cb>
+   static Function New(napi_env env,
+                       const char* utf8name = nullptr,
+                       void* data = nullptr);
+
+   template <VoidCallback cb>
+   static Function New(napi_env env,
+                       const std::string& utf8name,
+                       void* data = nullptr);
+
+   template <Callback cb>
+   static Function New(napi_env env,
+                       const std::string& utf8name,
+                       void* data = nullptr);
+
+   /// Callable must implement operator() accepting a const CallbackInfo&
+   /// and return either void or Value.
+   template <typename Callable>
+   static Function New(napi_env env,
+                       Callable cb,
+                       const char* utf8name = nullptr,
+                       void* data = nullptr);
+   /// Callable must implement operator() accepting a const CallbackInfo&
+   /// and return either void or Value.
+   template <typename Callable>
+   static Function New(napi_env env,
+                       Callable cb,
+                       const std::string& utf8name,
+                       void* data = nullptr);
+
+   Function();
+   Function(napi_env env, napi_value value);
+
+   MaybeOrValue<Value> operator()(
+       const std::initializer_list<napi_value>& args) const;
+
+   MaybeOrValue<Value> Call(
+       const std::initializer_list<napi_value>& args) const;
+   MaybeOrValue<Value> Call(const std::vector<napi_value>& args) const;
+   MaybeOrValue<Value> Call(size_t argc, const napi_value* args) const;
+   MaybeOrValue<Value> Call(
+       napi_value recv, const std::initializer_list<napi_value>& args) const;
+   MaybeOrValue<Value> Call(napi_value recv,
+                            const std::vector<napi_value>& args) const;
+   MaybeOrValue<Value> Call(napi_value recv,
+                            size_t argc,
+                            const napi_value* args) const;
+
+   MaybeOrValue<Value> MakeCallback(
+       napi_value recv,
+       const std::initializer_list<napi_value>& args,
+       napi_async_context context = nullptr) const;
+   MaybeOrValue<Value> MakeCallback(napi_value recv,
+                                    const std::vector<napi_value>& args,
+                                    napi_async_context context = nullptr) const;
+   MaybeOrValue<Value> MakeCallback(napi_value recv,
+                                    size_t argc,
+                                    const napi_value* args,
+                                    napi_async_context context = nullptr) const;
+
+   MaybeOrValue<Object> New(
+       const std::initializer_list<napi_value>& args) const;
+   MaybeOrValue<Object> New(const std::vector<napi_value>& args) const;
+   MaybeOrValue<Object> New(size_t argc, const napi_value* args) const;
+  };
+
+  class Promise : public Object {
+  public:
+    class Deferred {
+    public:
+      static Deferred New(napi_env env);
+      Deferred(napi_env env);
+
+      Napi::Promise Promise() const;
+      Napi::Env Env() const;
+
+      void Resolve(napi_value value) const;
+      void Reject(napi_value value) const;
+
+    private:
+      napi_env _env;
+      napi_deferred _deferred;
+      napi_value _promise;
+    };
+
+    Promise(napi_env env, napi_value value);
+  };
+
+  template <typename T>
+  class Buffer : public Uint8Array {
+  public:
+    static Buffer<T> New(napi_env env, size_t length);
+    static Buffer<T> New(napi_env env, T* data, size_t length);
+
+    // Finalizer must implement `void operator()(Env env, T* data)`.
+    template <typename Finalizer>
+    static Buffer<T> New(napi_env env, T* data,
+                         size_t length,
+                         Finalizer finalizeCallback);
+    // Finalizer must implement `void operator()(Env env, T* data, Hint* hint)`.
+    template <typename Finalizer, typename Hint>
+    static Buffer<T> New(napi_env env, T* data,
+                         size_t length,
+                         Finalizer finalizeCallback,
+                         Hint* finalizeHint);
+
+    static Buffer<T> Copy(napi_env env, const T* data, size_t length);
+
+    Buffer();
+    Buffer(napi_env env, napi_value value);
+    size_t Length() const;
+    T* Data() const;
+
+  private:
+    mutable size_t _length;
+    mutable T* _data;
+
+    Buffer(napi_env env, napi_value value, size_t length, T* data);
+    void EnsureInfo() const;
+  };
+
+  /// Holds a counted reference to a value; initially a weak reference unless otherwise specified,
+  /// may be changed to/from a strong reference by adjusting the refcount.
+  ///
+  /// The referenced value is not immediately destroyed when the reference count is zero; it is
+  /// merely then eligible for garbage-collection if there are no other references to the value.
+  template <typename T>
+  class Reference {
+  public:
+    static Reference<T> New(const T& value, uint32_t initialRefcount = 0);
+
+    Reference();
+    Reference(napi_env env, napi_ref ref);
+    ~Reference();
+
+    // A reference can be moved but cannot be copied.
+    Reference(Reference<T>&& other);
+    Reference<T>& operator =(Reference<T>&& other);
+    NAPI_DISALLOW_ASSIGN(Reference<T>)
+
+    operator napi_ref() const;
+    bool operator ==(const Reference<T> &other) const;
+    bool operator !=(const Reference<T> &other) const;
+
+    Napi::Env Env() const;
+    bool IsEmpty() const;
+
+    // Note when getting the value of a Reference it is usually correct to do so
+    // within a HandleScope so that the value handle gets cleaned up efficiently.
+    T Value() const;
+
+    uint32_t Ref();
+    uint32_t Unref();
+    void Reset();
+    void Reset(const T& value, uint32_t refcount = 0);
+
+    // Call this on a reference that is declared as static data, to prevent its
+    // destructor from running at program shutdown time, which would attempt to
+    // reset the reference when the environment is no longer valid. Avoid using
+    // this if at all possible. If you do need to use static data, MAKE SURE to
+    // warn your users that your addon is NOT threadsafe.
+    void SuppressDestruct();
+
+  protected:
+    Reference(const Reference<T>&);
+
+    /// !cond INTERNAL
+    napi_env _env;
+    napi_ref _ref;
+    /// !endcond
+
+  private:
+    bool _suppressDestruct;
+  };
+
+  class ObjectReference: public Reference<Object> {
+  public:
+    ObjectReference();
+    ObjectReference(napi_env env, napi_ref ref);
+
+    // A reference can be moved but cannot be copied.
+    ObjectReference(Reference<Object>&& other);
+    ObjectReference& operator =(Reference<Object>&& other);
+    ObjectReference(ObjectReference&& other);
+    ObjectReference& operator =(ObjectReference&& other);
+    NAPI_DISALLOW_ASSIGN(ObjectReference)
+
+    MaybeOrValue<Napi::Value> Get(const char* utf8name) const;
+    MaybeOrValue<Napi::Value> Get(const std::string& utf8name) const;
+    MaybeOrValue<bool> Set(const char* utf8name, napi_value value);
+    MaybeOrValue<bool> Set(const char* utf8name, Napi::Value value);
+    MaybeOrValue<bool> Set(const char* utf8name, const char* utf8value);
+    MaybeOrValue<bool> Set(const char* utf8name, bool boolValue);
+    MaybeOrValue<bool> Set(const char* utf8name, double numberValue);
+    MaybeOrValue<bool> Set(const std::string& utf8name, napi_value value);
+    MaybeOrValue<bool> Set(const std::string& utf8name, Napi::Value value);
+    MaybeOrValue<bool> Set(const std::string& utf8name, std::string& utf8value);
+    MaybeOrValue<bool> Set(const std::string& utf8name, bool boolValue);
+    MaybeOrValue<bool> Set(const std::string& utf8name, double numberValue);
+
+    MaybeOrValue<Napi::Value> Get(uint32_t index) const;
+    MaybeOrValue<bool> Set(uint32_t index, const napi_value value);
+    MaybeOrValue<bool> Set(uint32_t index, const Napi::Value value);
+    MaybeOrValue<bool> Set(uint32_t index, const char* utf8value);
+    MaybeOrValue<bool> Set(uint32_t index, const std::string& utf8value);
+    MaybeOrValue<bool> Set(uint32_t index, bool boolValue);
+    MaybeOrValue<bool> Set(uint32_t index, double numberValue);
+
+   protected:
+    ObjectReference(const ObjectReference&);
+  };
+
+  class FunctionReference: public Reference<Function> {
+  public:
+    FunctionReference();
+    FunctionReference(napi_env env, napi_ref ref);
+
+    // A reference can be moved but cannot be copied.
+    FunctionReference(Reference<Function>&& other);
+    FunctionReference& operator =(Reference<Function>&& other);
+    FunctionReference(FunctionReference&& other);
+    FunctionReference& operator =(FunctionReference&& other);
+    NAPI_DISALLOW_ASSIGN_COPY(FunctionReference)
+
+    MaybeOrValue<Napi::Value> operator()(
+        const std::initializer_list<napi_value>& args) const;
+
+    MaybeOrValue<Napi::Value> Call(
+        const std::initializer_list<napi_value>& args) const;
+    MaybeOrValue<Napi::Value> Call(const std::vector<napi_value>& args) const;
+    MaybeOrValue<Napi::Value> Call(
+        napi_value recv, const std::initializer_list<napi_value>& args) const;
+    MaybeOrValue<Napi::Value> Call(napi_value recv,
+                                   const std::vector<napi_value>& args) const;
+    MaybeOrValue<Napi::Value> Call(napi_value recv,
+                                   size_t argc,
+                                   const napi_value* args) const;
+
+    MaybeOrValue<Napi::Value> MakeCallback(
+        napi_value recv,
+        const std::initializer_list<napi_value>& args,
+        napi_async_context context = nullptr) const;
+    MaybeOrValue<Napi::Value> MakeCallback(
+        napi_value recv,
+        const std::vector<napi_value>& args,
+        napi_async_context context = nullptr) const;
+    MaybeOrValue<Napi::Value> MakeCallback(
+        napi_value recv,
+        size_t argc,
+        const napi_value* args,
+        napi_async_context context = nullptr) const;
+
+    MaybeOrValue<Object> New(
+        const std::initializer_list<napi_value>& args) const;
+    MaybeOrValue<Object> New(const std::vector<napi_value>& args) const;
+  };
+
+  // Shortcuts to creating a new reference with inferred type and refcount = 0.
+  template <typename T> Reference<T> Weak(T value);
+  ObjectReference Weak(Object value);
+  FunctionReference Weak(Function value);
+
+  // Shortcuts to creating a new reference with inferred type and refcount = 1.
+  template <typename T> Reference<T> Persistent(T value);
+  ObjectReference Persistent(Object value);
+  FunctionReference Persistent(Function value);
+
+  /// A persistent reference to a JavaScript error object. Use of this class
+  /// depends somewhat on whether C++ exceptions are enabled at compile time.
+  ///
+  /// ### Handling Errors With C++ Exceptions
+  ///
+  /// If C++ exceptions are enabled, then the `Error` class extends
+  /// `std::exception` and enables integrated error-handling for C++ exceptions
+  /// and JavaScript exceptions.
+  ///
+  /// If a Node-API call fails without executing any JavaScript code (for
+  /// example due to an invalid argument), then the Node-API wrapper
+  /// automatically converts and throws the error as a C++ exception of type
+  /// `Napi::Error`. Or if a JavaScript function called by C++ code via Node-API
+  /// throws a JavaScript exception, then the Node-API wrapper automatically
+  /// converts and throws it as a C++ exception of type `Napi::Error`.
+  ///
+  /// If a C++ exception of type `Napi::Error` escapes from a Node-API C++
+  /// callback, then the Node-API wrapper automatically converts and throws it
+  /// as a JavaScript exception. Therefore, catching a C++ exception of type
+  /// `Napi::Error` prevents a JavaScript exception from being thrown.
+  ///
+  /// #### Example 1A - Throwing a C++ exception:
+  ///
+  ///     Napi::Env env = ...
+  ///     throw Napi::Error::New(env, "Example exception");
+  ///
+  /// Following C++ statements will not be executed. The exception will bubble
+  /// up as a C++ exception of type `Napi::Error`, until it is either caught
+  /// while still in C++, or else automatically propataged as a JavaScript
+  /// exception when the callback returns to JavaScript.
+  ///
+  /// #### Example 2A - Propagating a Node-API C++ exception:
+  ///
+  ///     Napi::Function jsFunctionThatThrows = someObj.As<Napi::Function>();
+  ///     Napi::Value result = jsFunctionThatThrows({ arg1, arg2 });
+  ///
+  /// Following C++ statements will not be executed. The exception will bubble
+  /// up as a C++ exception of type `Napi::Error`, until it is either caught
+  /// while still in C++, or else automatically propagated as a JavaScript
+  /// exception when the callback returns to JavaScript.
+  ///
+  /// #### Example 3A - Handling a Node-API C++ exception:
+  ///
+  ///     Napi::Function jsFunctionThatThrows = someObj.As<Napi::Function>();
+  ///     Napi::Value result;
+  ///     try {
+  ///        result = jsFunctionThatThrows({ arg1, arg2 });
+  ///     } catch (const Napi::Error& e) {
+  ///       cerr << "Caught JavaScript exception: " + e.what();
+  ///     }
+  ///
+  /// Since the exception was caught here, it will not be propagated as a
+  /// JavaScript exception.
+  ///
+  /// ### Handling Errors Without C++ Exceptions
+  ///
+  /// If C++ exceptions are disabled (by defining `NAPI_DISABLE_CPP_EXCEPTIONS`)
+  /// then this class does not extend `std::exception`, and APIs in the `Napi`
+  /// namespace do not throw C++ exceptions when they fail. Instead, they raise
+  /// _pending_ JavaScript exceptions and return _empty_ `Value`s. Calling code
+  /// should check `Value::IsEmpty()` before attempting to use a returned value,
+  /// and may use methods on the `Env` class to check for, get, and clear a
+  /// pending JavaScript exception. If the pending exception is not cleared, it
+  /// will be thrown when the native callback returns to JavaScript.
+  ///
+  /// #### Example 1B - Throwing a JS exception
+  ///
+  ///     Napi::Env env = ...
+  ///     Napi::Error::New(env, "Example
+  ///     exception").ThrowAsJavaScriptException(); return;
+  ///
+  /// After throwing a JS exception, the code should generally return
+  /// immediately from the native callback, after performing any necessary
+  /// cleanup.
+  ///
+  /// #### Example 2B - Propagating a Node-API JS exception:
+  ///
+  ///     Napi::Function jsFunctionThatThrows = someObj.As<Napi::Function>();
+  ///     Napi::Value result = jsFunctionThatThrows({ arg1, arg2 });
+  ///     if (result.IsEmpty()) return;
+  ///
+  /// An empty value result from a Node-API call indicates an error occurred,
+  /// and a JavaScript exception is pending. To let the exception propagate, the
+  /// code should generally return immediately from the native callback, after
+  /// performing any necessary cleanup.
+  ///
+  /// #### Example 3B - Handling a Node-API JS exception:
+  ///
+  ///     Napi::Function jsFunctionThatThrows = someObj.As<Napi::Function>();
+  ///     Napi::Value result = jsFunctionThatThrows({ arg1, arg2 });
+  ///     if (result.IsEmpty()) {
+  ///       Napi::Error e = env.GetAndClearPendingException();
+  ///       cerr << "Caught JavaScript exception: " + e.Message();
+  ///     }
+  ///
+  /// Since the exception was cleared here, it will not be propagated as a
+  /// JavaScript exception after the native callback returns.
+  class Error : public ObjectReference
+#ifdef NAPI_CPP_EXCEPTIONS
+    , public std::exception
+#endif // NAPI_CPP_EXCEPTIONS
+    {
+  public:
+    static Error New(napi_env env);
+    static Error New(napi_env env, const char* message);
+    static Error New(napi_env env, const std::string& message);
+
+    static NAPI_NO_RETURN void Fatal(const char* location, const char* message);
+
+    Error();
+    Error(napi_env env, napi_value value);
+
+    // An error can be moved or copied.
+    Error(Error&& other);
+    Error& operator =(Error&& other);
+    Error(const Error&);
+    Error& operator =(const Error&);
+
+    const std::string& Message() const NAPI_NOEXCEPT;
+    void ThrowAsJavaScriptException() const;
+
+    Object Value() const;
+
+#ifdef NAPI_CPP_EXCEPTIONS
+    const char* what() const NAPI_NOEXCEPT override;
+#endif // NAPI_CPP_EXCEPTIONS
+
+  protected:
+    /// !cond INTERNAL
+   using create_error_fn = napi_status (*)(napi_env envb,
+                                           napi_value code,
+                                           napi_value msg,
+                                           napi_value* result);
+
+   template <typename TError>
+   static TError New(napi_env env,
+                     const char* message,
+                     size_t length,
+                     create_error_fn create_error);
+   /// !endcond
+
+  private:
+   const char* ERROR_WRAP_VALUE =
+       "4bda9e7e-4913-4dbc-95de-891cbf66598e-errorVal";
+   mutable std::string _message;
+  };
+
+  class TypeError : public Error {
+  public:
+    static TypeError New(napi_env env, const char* message);
+    static TypeError New(napi_env env, const std::string& message);
+
+    TypeError();
+    TypeError(napi_env env, napi_value value);
+  };
+
+  class RangeError : public Error {
+  public:
+    static RangeError New(napi_env env, const char* message);
+    static RangeError New(napi_env env, const std::string& message);
+
+    RangeError();
+    RangeError(napi_env env, napi_value value);
+  };
+
+  class CallbackInfo {
+  public:
+    CallbackInfo(napi_env env, napi_callback_info info);
+    ~CallbackInfo();
+
+    // Disallow copying to prevent multiple free of _dynamicArgs
+    NAPI_DISALLOW_ASSIGN_COPY(CallbackInfo)
+
+    Napi::Env Env() const;
+    Value NewTarget() const;
+    bool IsConstructCall() const;
+    size_t Length() const;
+    const Value operator [](size_t index) const;
+    Value This() const;
+    void* Data() const;
+    void SetData(void* data);
+
+  private:
+    const size_t _staticArgCount = 6;
+    napi_env _env;
+    napi_callback_info _info;
+    napi_value _this;
+    size_t _argc;
+    napi_value* _argv;
+    napi_value _staticArgs[6];
+    napi_value* _dynamicArgs;
+    void* _data;
+  };
+
+  class PropertyDescriptor {
+  public:
+   using GetterCallback = Napi::Value (*)(const Napi::CallbackInfo& info);
+   using SetterCallback = void (*)(const Napi::CallbackInfo& info);
+
+#ifndef NODE_ADDON_API_DISABLE_DEPRECATED
+    template <typename Getter>
+    static PropertyDescriptor Accessor(const char* utf8name,
+                                       Getter getter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Getter>
+    static PropertyDescriptor Accessor(const std::string& utf8name,
+                                       Getter getter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Getter>
+    static PropertyDescriptor Accessor(napi_value name,
+                                       Getter getter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Getter>
+    static PropertyDescriptor Accessor(Name name,
+                                       Getter getter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Getter, typename Setter>
+    static PropertyDescriptor Accessor(const char* utf8name,
+                                       Getter getter,
+                                       Setter setter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Getter, typename Setter>
+    static PropertyDescriptor Accessor(const std::string& utf8name,
+                                       Getter getter,
+                                       Setter setter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Getter, typename Setter>
+    static PropertyDescriptor Accessor(napi_value name,
+                                       Getter getter,
+                                       Setter setter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Getter, typename Setter>
+    static PropertyDescriptor Accessor(Name name,
+                                       Getter getter,
+                                       Setter setter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Callable>
+    static PropertyDescriptor Function(const char* utf8name,
+                                       Callable cb,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Callable>
+    static PropertyDescriptor Function(const std::string& utf8name,
+                                       Callable cb,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Callable>
+    static PropertyDescriptor Function(napi_value name,
+                                       Callable cb,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Callable>
+    static PropertyDescriptor Function(Name name,
+                                       Callable cb,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+#endif // !NODE_ADDON_API_DISABLE_DEPRECATED
+
+    template <GetterCallback Getter>
+    static PropertyDescriptor Accessor(const char* utf8name,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+
+    template <GetterCallback Getter>
+    static PropertyDescriptor Accessor(const std::string& utf8name,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+
+    template <GetterCallback Getter>
+    static PropertyDescriptor Accessor(Name name,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+
+    template <GetterCallback Getter, SetterCallback Setter>
+    static PropertyDescriptor Accessor(const char* utf8name,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+
+    template <GetterCallback Getter, SetterCallback Setter>
+    static PropertyDescriptor Accessor(const std::string& utf8name,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+
+    template <GetterCallback Getter, SetterCallback Setter>
+    static PropertyDescriptor Accessor(Name name,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+
+    template <typename Getter>
+    static PropertyDescriptor Accessor(Napi::Env env,
+                                       Napi::Object object,
+                                       const char* utf8name,
+                                       Getter getter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Getter>
+    static PropertyDescriptor Accessor(Napi::Env env,
+                                       Napi::Object object,
+                                       const std::string& utf8name,
+                                       Getter getter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Getter>
+    static PropertyDescriptor Accessor(Napi::Env env,
+                                       Napi::Object object,
+                                       Name name,
+                                       Getter getter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Getter, typename Setter>
+    static PropertyDescriptor Accessor(Napi::Env env,
+                                       Napi::Object object,
+                                       const char* utf8name,
+                                       Getter getter,
+                                       Setter setter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Getter, typename Setter>
+    static PropertyDescriptor Accessor(Napi::Env env,
+                                       Napi::Object object,
+                                       const std::string& utf8name,
+                                       Getter getter,
+                                       Setter setter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Getter, typename Setter>
+    static PropertyDescriptor Accessor(Napi::Env env,
+                                       Napi::Object object,
+                                       Name name,
+                                       Getter getter,
+                                       Setter setter,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Callable>
+    static PropertyDescriptor Function(Napi::Env env,
+                                       Napi::Object object,
+                                       const char* utf8name,
+                                       Callable cb,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Callable>
+    static PropertyDescriptor Function(Napi::Env env,
+                                       Napi::Object object,
+                                       const std::string& utf8name,
+                                       Callable cb,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    template <typename Callable>
+    static PropertyDescriptor Function(Napi::Env env,
+                                       Napi::Object object,
+                                       Name name,
+                                       Callable cb,
+                                       napi_property_attributes attributes = napi_default,
+                                       void* data = nullptr);
+    static PropertyDescriptor Value(const char* utf8name,
+                                    napi_value value,
+                                    napi_property_attributes attributes = napi_default);
+    static PropertyDescriptor Value(const std::string& utf8name,
+                                    napi_value value,
+                                    napi_property_attributes attributes = napi_default);
+    static PropertyDescriptor Value(napi_value name,
+                                    napi_value value,
+                                    napi_property_attributes attributes = napi_default);
+    static PropertyDescriptor Value(Name name,
+                                    Napi::Value value,
+                                    napi_property_attributes attributes = napi_default);
+
+    PropertyDescriptor(napi_property_descriptor desc);
+
+    operator napi_property_descriptor&();
+    operator const napi_property_descriptor&() const;
+
+  private:
+    napi_property_descriptor _desc;
+  };
+
+  /// Property descriptor for use with `ObjectWrap::DefineClass()`.
+  ///
+  /// This is different from the standalone `PropertyDescriptor` because it is specific to each
+  /// `ObjectWrap<T>` subclass. This prevents using descriptors from a different class when
+  /// defining a new class (preventing the callbacks from having incorrect `this` pointers).
+  template <typename T>
+  class ClassPropertyDescriptor {
+  public:
+    ClassPropertyDescriptor(napi_property_descriptor desc) : _desc(desc) {}
+
+    operator napi_property_descriptor&() { return _desc; }
+    operator const napi_property_descriptor&() const { return _desc; }
+
+  private:
+    napi_property_descriptor _desc;
+  };
+
+  template <typename T, typename TCallback>
+  struct MethodCallbackData {
+    TCallback callback;
+    void* data;
+  };
+
+  template <typename T, typename TGetterCallback, typename TSetterCallback>
+  struct AccessorCallbackData {
+    TGetterCallback getterCallback;
+    TSetterCallback setterCallback;
+    void* data;
+  };
+
+  template <typename T>
+  class InstanceWrap {
+   public:
+    using InstanceVoidMethodCallback = void (T::*)(const CallbackInfo& info);
+    using InstanceMethodCallback = Napi::Value (T::*)(const CallbackInfo& info);
+    using InstanceGetterCallback = Napi::Value (T::*)(const CallbackInfo& info);
+    using InstanceSetterCallback = void (T::*)(const CallbackInfo& info,
+                                               const Napi::Value& value);
+
+    using PropertyDescriptor = ClassPropertyDescriptor<T>;
+
+    static PropertyDescriptor InstanceMethod(const char* utf8name,
+                                             InstanceVoidMethodCallback method,
+                                             napi_property_attributes attributes = napi_default,
+                                             void* data = nullptr);
+    static PropertyDescriptor InstanceMethod(const char* utf8name,
+                                             InstanceMethodCallback method,
+                                             napi_property_attributes attributes = napi_default,
+                                             void* data = nullptr);
+    static PropertyDescriptor InstanceMethod(Symbol name,
+                                             InstanceVoidMethodCallback method,
+                                             napi_property_attributes attributes = napi_default,
+                                             void* data = nullptr);
+    static PropertyDescriptor InstanceMethod(Symbol name,
+                                             InstanceMethodCallback method,
+                                             napi_property_attributes attributes = napi_default,
+                                             void* data = nullptr);
+    template <InstanceVoidMethodCallback method>
+    static PropertyDescriptor InstanceMethod(const char* utf8name,
+                                             napi_property_attributes attributes = napi_default,
+                                             void* data = nullptr);
+    template <InstanceMethodCallback method>
+    static PropertyDescriptor InstanceMethod(const char* utf8name,
+                                             napi_property_attributes attributes = napi_default,
+                                             void* data = nullptr);
+    template <InstanceVoidMethodCallback method>
+    static PropertyDescriptor InstanceMethod(Symbol name,
+                                             napi_property_attributes attributes = napi_default,
+                                             void* data = nullptr);
+    template <InstanceMethodCallback method>
+    static PropertyDescriptor InstanceMethod(Symbol name,
+                                             napi_property_attributes attributes = napi_default,
+                                             void* data = nullptr);
+    static PropertyDescriptor InstanceAccessor(const char* utf8name,
+                                               InstanceGetterCallback getter,
+                                               InstanceSetterCallback setter,
+                                               napi_property_attributes attributes = napi_default,
+                                               void* data = nullptr);
+    static PropertyDescriptor InstanceAccessor(Symbol name,
+                                               InstanceGetterCallback getter,
+                                               InstanceSetterCallback setter,
+                                               napi_property_attributes attributes = napi_default,
+                                               void* data = nullptr);
+    template <InstanceGetterCallback getter, InstanceSetterCallback setter=nullptr>
+    static PropertyDescriptor InstanceAccessor(const char* utf8name,
+                                               napi_property_attributes attributes = napi_default,
+                                               void* data = nullptr);
+    template <InstanceGetterCallback getter, InstanceSetterCallback setter=nullptr>
+    static PropertyDescriptor InstanceAccessor(Symbol name,
+                                               napi_property_attributes attributes = napi_default,
+                                               void* data = nullptr);
+    static PropertyDescriptor InstanceValue(const char* utf8name,
+                                            Napi::Value value,
+                                            napi_property_attributes attributes = napi_default);
+    static PropertyDescriptor InstanceValue(Symbol name,
+                                            Napi::Value value,
+                                            napi_property_attributes attributes = napi_default);
+
+   protected:
+    static void AttachPropData(napi_env env, napi_value value, const napi_property_descriptor* prop);
+
+   private:
+    using This = InstanceWrap<T>;
+
+    using InstanceVoidMethodCallbackData =
+        MethodCallbackData<T, InstanceVoidMethodCallback>;
+    using InstanceMethodCallbackData =
+        MethodCallbackData<T, InstanceMethodCallback>;
+    using InstanceAccessorCallbackData =
+        AccessorCallbackData<T, InstanceGetterCallback, InstanceSetterCallback>;
+
+    static napi_value InstanceVoidMethodCallbackWrapper(napi_env env, napi_callback_info info);
+    static napi_value InstanceMethodCallbackWrapper(napi_env env, napi_callback_info info);
+    static napi_value InstanceGetterCallbackWrapper(napi_env env, napi_callback_info info);
+    static napi_value InstanceSetterCallbackWrapper(napi_env env, napi_callback_info info);
+
+    template <InstanceSetterCallback method>
+    static napi_value WrappedMethod(napi_env env,
+                                    napi_callback_info info) NAPI_NOEXCEPT;
+
+    template <InstanceSetterCallback setter> struct SetterTag {};
+
+    template <InstanceSetterCallback setter>
+    static napi_callback WrapSetter(SetterTag<setter>) NAPI_NOEXCEPT {
+      return &This::WrappedMethod<setter>;
+    }
+    static napi_callback WrapSetter(SetterTag<nullptr>) NAPI_NOEXCEPT {
+      return nullptr;
+    }
+  };
+
+  /// Base class to be extended by C++ classes exposed to JavaScript; each C++ class instance gets
+  /// "wrapped" by a JavaScript object that is managed by this class.
+  ///
+  /// At initialization time, the `DefineClass()` method must be used to
+  /// hook up the accessor and method callbacks. It takes a list of
+  /// property descriptors, which can be constructed via the various
+  /// static methods on the base class.
+  ///
+  /// #### Example:
+  ///
+  ///     class Example: public Napi::ObjectWrap<Example> {
+  ///       public:
+  ///         static void Initialize(Napi::Env& env, Napi::Object& target) {
+  ///           Napi::Function constructor = DefineClass(env, "Example", {
+  ///             InstanceAccessor<&Example::GetSomething, &Example::SetSomething>("value"),
+  ///             InstanceMethod<&Example::DoSomething>("doSomething"),
+  ///           });
+  ///           target.Set("Example", constructor);
+  ///         }
+  ///
+  ///         Example(const Napi::CallbackInfo& info); // Constructor
+  ///         Napi::Value GetSomething(const Napi::CallbackInfo& info);
+  ///         void SetSomething(const Napi::CallbackInfo& info, const Napi::Value& value);
+  ///         Napi::Value DoSomething(const Napi::CallbackInfo& info);
+  ///     }
+  template <typename T>
+  class ObjectWrap : public InstanceWrap<T>, public Reference<Object> {
+  public:
+    ObjectWrap(const CallbackInfo& callbackInfo);
+    virtual ~ObjectWrap();
+
+    static T* Unwrap(Object wrapper);
+
+    // Methods exposed to JavaScript must conform to one of these callback signatures.
+    using StaticVoidMethodCallback = void (*)(const CallbackInfo& info);
+    using StaticMethodCallback = Napi::Value (*)(const CallbackInfo& info);
+    using StaticGetterCallback = Napi::Value (*)(const CallbackInfo& info);
+    using StaticSetterCallback = void (*)(const CallbackInfo& info,
+                                          const Napi::Value& value);
+
+    using PropertyDescriptor = ClassPropertyDescriptor<T>;
+
+    static Function DefineClass(Napi::Env env,
+                                const char* utf8name,
+                                const std::initializer_list<PropertyDescriptor>& properties,
+                                void* data = nullptr);
+    static Function DefineClass(Napi::Env env,
+                                const char* utf8name,
+                                const std::vector<PropertyDescriptor>& properties,
+                                void* data = nullptr);
+    static PropertyDescriptor StaticMethod(const char* utf8name,
+                                           StaticVoidMethodCallback method,
+                                           napi_property_attributes attributes = napi_default,
+                                           void* data = nullptr);
+    static PropertyDescriptor StaticMethod(const char* utf8name,
+                                           StaticMethodCallback method,
+                                           napi_property_attributes attributes = napi_default,
+                                           void* data = nullptr);
+    static PropertyDescriptor StaticMethod(Symbol name,
+                                           StaticVoidMethodCallback method,
+                                           napi_property_attributes attributes = napi_default,
+                                           void* data = nullptr);
+    static PropertyDescriptor StaticMethod(Symbol name,
+                                           StaticMethodCallback method,
+                                           napi_property_attributes attributes = napi_default,
+                                           void* data = nullptr);
+    template <StaticVoidMethodCallback method>
+    static PropertyDescriptor StaticMethod(const char* utf8name,
+                                           napi_property_attributes attributes = napi_default,
+                                           void* data = nullptr);
+    template <StaticVoidMethodCallback method>
+    static PropertyDescriptor StaticMethod(Symbol name,
+                                           napi_property_attributes attributes = napi_default,
+                                           void* data = nullptr);
+    template <StaticMethodCallback method>
+    static PropertyDescriptor StaticMethod(const char* utf8name,
+                                           napi_property_attributes attributes = napi_default,
+                                           void* data = nullptr);
+    template <StaticMethodCallback method>
+    static PropertyDescriptor StaticMethod(Symbol name,
+                                           napi_property_attributes attributes = napi_default,
+                                           void* data = nullptr);
+    static PropertyDescriptor StaticAccessor(const char* utf8name,
+                                             StaticGetterCallback getter,
+                                             StaticSetterCallback setter,
+                                             napi_property_attributes attributes = napi_default,
+                                             void* data = nullptr);
+    static PropertyDescriptor StaticAccessor(Symbol name,
+                                             StaticGetterCallback getter,
+                                             StaticSetterCallback setter,
+                                             napi_property_attributes attributes = napi_default,
+                                             void* data = nullptr);
+    template <StaticGetterCallback getter, StaticSetterCallback setter=nullptr>
+    static PropertyDescriptor StaticAccessor(const char* utf8name,
+                                             napi_property_attributes attributes = napi_default,
+                                             void* data = nullptr);
+    template <StaticGetterCallback getter, StaticSetterCallback setter=nullptr>
+    static PropertyDescriptor StaticAccessor(Symbol name,
+                                             napi_property_attributes attributes = napi_default,
+                                             void* data = nullptr);
+    static PropertyDescriptor StaticValue(const char* utf8name,
+                                          Napi::Value value,
+                                          napi_property_attributes attributes = napi_default);
+    static PropertyDescriptor StaticValue(Symbol name,
+                                          Napi::Value value,
+                                          napi_property_attributes attributes = napi_default);
+    virtual void Finalize(Napi::Env env);
+
+  private:
+    using This = ObjectWrap<T>;
+
+    static napi_value ConstructorCallbackWrapper(napi_env env, napi_callback_info info);
+    static napi_value StaticVoidMethodCallbackWrapper(napi_env env, napi_callback_info info);
+    static napi_value StaticMethodCallbackWrapper(napi_env env, napi_callback_info info);
+    static napi_value StaticGetterCallbackWrapper(napi_env env, napi_callback_info info);
+    static napi_value StaticSetterCallbackWrapper(napi_env env, napi_callback_info info);
+    static void FinalizeCallback(napi_env env, void* data, void* hint);
+    static Function DefineClass(Napi::Env env,
+                                const char* utf8name,
+                                const size_t props_count,
+                                const napi_property_descriptor* props,
+                                void* data = nullptr);
+
+    using StaticVoidMethodCallbackData =
+        MethodCallbackData<T, StaticVoidMethodCallback>;
+    using StaticMethodCallbackData =
+        MethodCallbackData<T, StaticMethodCallback>;
+
+    using StaticAccessorCallbackData =
+        AccessorCallbackData<T, StaticGetterCallback, StaticSetterCallback>;
+
+    template <StaticSetterCallback method>
+    static napi_value WrappedMethod(napi_env env,
+                                    napi_callback_info info) NAPI_NOEXCEPT;
+
+    template <StaticSetterCallback setter> struct StaticSetterTag {};
+
+    template <StaticSetterCallback setter>
+    static napi_callback WrapStaticSetter(StaticSetterTag<setter>)
+        NAPI_NOEXCEPT {
+      return &This::WrappedMethod<setter>;
+    }
+    static napi_callback WrapStaticSetter(StaticSetterTag<nullptr>)
+        NAPI_NOEXCEPT {
+      return nullptr;
+    }
+
+    bool _construction_failed = true;
+  };
+
+  class HandleScope {
+  public:
+    HandleScope(napi_env env, napi_handle_scope scope);
+    explicit HandleScope(Napi::Env env);
+    ~HandleScope();
+
+    // Disallow copying to prevent double close of napi_handle_scope
+    NAPI_DISALLOW_ASSIGN_COPY(HandleScope)
+
+    operator napi_handle_scope() const;
+
+    Napi::Env Env() const;
+
+  private:
+    napi_env _env;
+    napi_handle_scope _scope;
+  };
+
+  class EscapableHandleScope {
+  public:
+    EscapableHandleScope(napi_env env, napi_escapable_handle_scope scope);
+    explicit EscapableHandleScope(Napi::Env env);
+    ~EscapableHandleScope();
+
+    // Disallow copying to prevent double close of napi_escapable_handle_scope
+    NAPI_DISALLOW_ASSIGN_COPY(EscapableHandleScope)
+
+    operator napi_escapable_handle_scope() const;
+
+    Napi::Env Env() const;
+    Value Escape(napi_value escapee);
+
+  private:
+    napi_env _env;
+    napi_escapable_handle_scope _scope;
+  };
+
+#if (NAPI_VERSION > 2)
+  class CallbackScope {
+  public:
+    CallbackScope(napi_env env, napi_callback_scope scope);
+    CallbackScope(napi_env env, napi_async_context context);
+    virtual ~CallbackScope();
+
+    // Disallow copying to prevent double close of napi_callback_scope
+    NAPI_DISALLOW_ASSIGN_COPY(CallbackScope)
+
+    operator napi_callback_scope() const;
+
+    Napi::Env Env() const;
+
+  private:
+    napi_env _env;
+    napi_callback_scope _scope;
+  };
+#endif
+
+  class AsyncContext {
+  public:
+    explicit AsyncContext(napi_env env, const char* resource_name);
+    explicit AsyncContext(napi_env env, const char* resource_name, const Object& resource);
+    virtual ~AsyncContext();
+
+    AsyncContext(AsyncContext&& other);
+    AsyncContext& operator =(AsyncContext&& other);
+    NAPI_DISALLOW_ASSIGN_COPY(AsyncContext)
+
+    operator napi_async_context() const;
+
+    Napi::Env Env() const;
+
+  private:
+    napi_env _env;
+    napi_async_context _context;
+  };
+
+  class AsyncWorker {
+  public:
+    virtual ~AsyncWorker();
+
+    // An async worker can be moved but cannot be copied.
+    AsyncWorker(AsyncWorker&& other);
+    AsyncWorker& operator =(AsyncWorker&& other);
+    NAPI_DISALLOW_ASSIGN_COPY(AsyncWorker)
+
+    operator napi_async_work() const;
+
+    Napi::Env Env() const;
+
+    void Queue();
+    void Cancel();
+    void SuppressDestruct();
+
+    ObjectReference& Receiver();
+    FunctionReference& Callback();
+
+    virtual void OnExecute(Napi::Env env);
+    virtual void OnWorkComplete(Napi::Env env,
+                                napi_status status);
+
+  protected:
+    explicit AsyncWorker(const Function& callback);
+    explicit AsyncWorker(const Function& callback,
+                         const char* resource_name);
+    explicit AsyncWorker(const Function& callback,
+                         const char* resource_name,
+                         const Object& resource);
+    explicit AsyncWorker(const Object& receiver,
+                         const Function& callback);
+    explicit AsyncWorker(const Object& receiver,
+                         const Function& callback,
+                         const char* resource_name);
+    explicit AsyncWorker(const Object& receiver,
+                         const Function& callback,
+                         const char* resource_name,
+                         const Object& resource);
+
+    explicit AsyncWorker(Napi::Env env);
+    explicit AsyncWorker(Napi::Env env,
+                         const char* resource_name);
+    explicit AsyncWorker(Napi::Env env,
+                         const char* resource_name,
+                         const Object& resource);
+
+    virtual void Execute() = 0;
+    virtual void OnOK();
+    virtual void OnError(const Error& e);
+    virtual void Destroy();
+    virtual std::vector<napi_value> GetResult(Napi::Env env);
+
+    void SetError(const std::string& error);
+
+  private:
+    static inline void OnAsyncWorkExecute(napi_env env, void* asyncworker);
+    static inline void OnAsyncWorkComplete(napi_env env,
+                                           napi_status status,
+                                           void* asyncworker);
+
+    napi_env _env;
+    napi_async_work _work;
+    ObjectReference _receiver;
+    FunctionReference _callback;
+    std::string _error;
+    bool _suppress_destruct;
+  };
+
+  #if (NAPI_VERSION > 3 && !defined(__wasm32__))
+  class ThreadSafeFunction {
+  public:
+    // This API may only be called from the main thread.
+    template <typename ResourceString>
+    static ThreadSafeFunction New(napi_env env,
+                                  const Function& callback,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount);
+
+    // This API may only be called from the main thread.
+    template <typename ResourceString, typename ContextType>
+    static ThreadSafeFunction New(napi_env env,
+                                  const Function& callback,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  ContextType* context);
+
+    // This API may only be called from the main thread.
+    template <typename ResourceString, typename Finalizer>
+    static ThreadSafeFunction New(napi_env env,
+                                  const Function& callback,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  Finalizer finalizeCallback);
+
+    // This API may only be called from the main thread.
+    template <typename ResourceString, typename Finalizer,
+              typename FinalizerDataType>
+    static ThreadSafeFunction New(napi_env env,
+                                  const Function& callback,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  Finalizer finalizeCallback,
+                                  FinalizerDataType* data);
+
+    // This API may only be called from the main thread.
+    template <typename ResourceString, typename ContextType, typename Finalizer>
+    static ThreadSafeFunction New(napi_env env,
+                                  const Function& callback,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  ContextType* context,
+                                  Finalizer finalizeCallback);
+
+    // This API may only be called from the main thread.
+    template <typename ResourceString, typename ContextType,
+              typename Finalizer, typename FinalizerDataType>
+    static ThreadSafeFunction New(napi_env env,
+                                  const Function& callback,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  ContextType* context,
+                                  Finalizer finalizeCallback,
+                                  FinalizerDataType* data);
+
+    // This API may only be called from the main thread.
+    template <typename ResourceString>
+    static ThreadSafeFunction New(napi_env env,
+                                  const Function& callback,
+                                  const Object& resource,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount);
+
+    // This API may only be called from the main thread.
+    template <typename ResourceString, typename ContextType>
+    static ThreadSafeFunction New(napi_env env,
+                                  const Function& callback,
+                                  const Object& resource,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  ContextType* context);
+
+    // This API may only be called from the main thread.
+    template <typename ResourceString, typename Finalizer>
+    static ThreadSafeFunction New(napi_env env,
+                                  const Function& callback,
+                                  const Object& resource,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  Finalizer finalizeCallback);
+
+    // This API may only be called from the main thread.
+    template <typename ResourceString, typename Finalizer,
+              typename FinalizerDataType>
+    static ThreadSafeFunction New(napi_env env,
+                                  const Function& callback,
+                                  const Object& resource,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  Finalizer finalizeCallback,
+                                  FinalizerDataType* data);
+
+    // This API may only be called from the main thread.
+    template <typename ResourceString, typename ContextType, typename Finalizer>
+    static ThreadSafeFunction New(napi_env env,
+                                  const Function& callback,
+                                  const Object& resource,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  ContextType* context,
+                                  Finalizer finalizeCallback);
+
+    // This API may only be called from the main thread.
+    template <typename ResourceString, typename ContextType,
+              typename Finalizer, typename FinalizerDataType>
+    static ThreadSafeFunction New(napi_env env,
+                                  const Function& callback,
+                                  const Object& resource,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  ContextType* context,
+                                  Finalizer finalizeCallback,
+                                  FinalizerDataType* data);
+
+    ThreadSafeFunction();
+    ThreadSafeFunction(napi_threadsafe_function tsFunctionValue);
+
+    operator napi_threadsafe_function() const;
+
+    // This API may be called from any thread.
+    napi_status BlockingCall() const;
+
+    // This API may be called from any thread.
+    template <typename Callback>
+    napi_status BlockingCall(Callback callback) const;
+
+    // This API may be called from any thread.
+    template <typename DataType, typename Callback>
+    napi_status BlockingCall(DataType* data, Callback callback) const;
+
+    // This API may be called from any thread.
+    napi_status NonBlockingCall() const;
+
+    // This API may be called from any thread.
+    template <typename Callback>
+    napi_status NonBlockingCall(Callback callback) const;
+
+    // This API may be called from any thread.
+    template <typename DataType, typename Callback>
+    napi_status NonBlockingCall(DataType* data, Callback callback) const;
+
+    // This API may only be called from the main thread.
+    void Ref(napi_env env) const;
+
+    // This API may only be called from the main thread.
+    void Unref(napi_env env) const;
+
+    // This API may be called from any thread.
+    napi_status Acquire() const;
+
+    // This API may be called from any thread.
+    napi_status Release();
+
+    // This API may be called from any thread.
+    napi_status Abort();
+
+    struct ConvertibleContext
+    {
+      template <class T>
+      operator T*() { return static_cast<T*>(context); }
+      void* context;
+    };
+
+    // This API may be called from any thread.
+    ConvertibleContext GetContext() const;
+
+  private:
+    using CallbackWrapper = std::function<void(Napi::Env, Napi::Function)>;
+
+    template <typename ResourceString, typename ContextType,
+              typename Finalizer, typename FinalizerDataType>
+    static ThreadSafeFunction New(napi_env env,
+                                  const Function& callback,
+                                  const Object& resource,
+                                  ResourceString resourceName,
+                                  size_t maxQueueSize,
+                                  size_t initialThreadCount,
+                                  ContextType* context,
+                                  Finalizer finalizeCallback,
+                                  FinalizerDataType* data,
+                                  napi_finalize wrapper);
+
+    napi_status CallInternal(CallbackWrapper* callbackWrapper,
+                        napi_threadsafe_function_call_mode mode) const;
+
+    static void CallJS(napi_env env,
+                       napi_value jsCallback,
+                       void* context,
+                       void* data);
+
+    napi_threadsafe_function _tsfn;
+  };
+
+  // A TypedThreadSafeFunction by default has no context (nullptr) and can
+  // accept any type (void) to its CallJs.
+  template <typename ContextType = std::nullptr_t,
+            typename DataType = void,
+            void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*) =
+                nullptr>
+  class TypedThreadSafeFunction {
+   public:
+    // This API may only be called from the main thread.
+    // Helper function that returns nullptr if running Node-API 5+, otherwise a
+    // non-empty, no-op Function. This provides the ability to specify at
+    // compile-time a callback parameter to `New` that safely does no action
+    // when targeting _any_ Node-API version.
+#if NAPI_VERSION > 4
+    static std::nullptr_t EmptyFunctionFactory(Napi::Env env);
+#else
+    static Napi::Function EmptyFunctionFactory(Napi::Env env);
+#endif
+    static Napi::Function FunctionOrEmpty(Napi::Env env,
+                                          Napi::Function& callback);
+
+#if NAPI_VERSION > 4
+    // This API may only be called from the main thread.
+    // Creates a new threadsafe function with:
+    //   Callback [missing] Resource [missing] Finalizer [missing]
+    template <typename ResourceString>
+    static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+        napi_env env,
+        ResourceString resourceName,
+        size_t maxQueueSize,
+        size_t initialThreadCount,
+        ContextType* context = nullptr);
+
+    // This API may only be called from the main thread.
+    // Creates a new threadsafe function with:
+    //   Callback [missing] Resource [passed] Finalizer [missing]
+    template <typename ResourceString>
+    static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+        napi_env env,
+        const Object& resource,
+        ResourceString resourceName,
+        size_t maxQueueSize,
+        size_t initialThreadCount,
+        ContextType* context = nullptr);
+
+    // This API may only be called from the main thread.
+    // Creates a new threadsafe function with:
+    //   Callback [missing] Resource [missing] Finalizer [passed]
+    template <typename ResourceString,
+              typename Finalizer,
+              typename FinalizerDataType = void>
+    static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+        napi_env env,
+        ResourceString resourceName,
+        size_t maxQueueSize,
+        size_t initialThreadCount,
+        ContextType* context,
+        Finalizer finalizeCallback,
+        FinalizerDataType* data = nullptr);
+
+    // This API may only be called from the main thread.
+    // Creates a new threadsafe function with:
+    //   Callback [missing] Resource [passed] Finalizer [passed]
+    template <typename ResourceString,
+              typename Finalizer,
+              typename FinalizerDataType = void>
+    static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+        napi_env env,
+        const Object& resource,
+        ResourceString resourceName,
+        size_t maxQueueSize,
+        size_t initialThreadCount,
+        ContextType* context,
+        Finalizer finalizeCallback,
+        FinalizerDataType* data = nullptr);
+#endif
+
+    // This API may only be called from the main thread.
+    // Creates a new threadsafe function with:
+    //   Callback [passed] Resource [missing] Finalizer [missing]
+    template <typename ResourceString>
+    static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+        napi_env env,
+        const Function& callback,
+        ResourceString resourceName,
+        size_t maxQueueSize,
+        size_t initialThreadCount,
+        ContextType* context = nullptr);
+
+    // This API may only be called from the main thread.
+    // Creates a new threadsafe function with:
+    //   Callback [passed] Resource [passed] Finalizer [missing]
+    template <typename ResourceString>
+    static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+        napi_env env,
+        const Function& callback,
+        const Object& resource,
+        ResourceString resourceName,
+        size_t maxQueueSize,
+        size_t initialThreadCount,
+        ContextType* context = nullptr);
+
+    // This API may only be called from the main thread.
+    // Creates a new threadsafe function with:
+    //   Callback [passed] Resource [missing] Finalizer [passed]
+    template <typename ResourceString,
+              typename Finalizer,
+              typename FinalizerDataType = void>
+    static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+        napi_env env,
+        const Function& callback,
+        ResourceString resourceName,
+        size_t maxQueueSize,
+        size_t initialThreadCount,
+        ContextType* context,
+        Finalizer finalizeCallback,
+        FinalizerDataType* data = nullptr);
+
+    // This API may only be called from the main thread.
+    // Creates a new threadsafe function with:
+    //   Callback [passed] Resource [passed] Finalizer [passed]
+    template <typename CallbackType,
+              typename ResourceString,
+              typename Finalizer,
+              typename FinalizerDataType>
+    static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+        napi_env env,
+        CallbackType callback,
+        const Object& resource,
+        ResourceString resourceName,
+        size_t maxQueueSize,
+        size_t initialThreadCount,
+        ContextType* context,
+        Finalizer finalizeCallback,
+        FinalizerDataType* data = nullptr);
+
+    TypedThreadSafeFunction();
+    TypedThreadSafeFunction(napi_threadsafe_function tsFunctionValue);
+
+    operator napi_threadsafe_function() const;
+
+    // This API may be called from any thread.
+    napi_status BlockingCall(DataType* data = nullptr) const;
+
+    // This API may be called from any thread.
+    napi_status NonBlockingCall(DataType* data = nullptr) const;
+
+    // This API may only be called from the main thread.
+    void Ref(napi_env env) const;
+
+    // This API may only be called from the main thread.
+    void Unref(napi_env env) const;
+
+    // This API may be called from any thread.
+    napi_status Acquire() const;
+
+    // This API may be called from any thread.
+    napi_status Release();
+
+    // This API may be called from any thread.
+    napi_status Abort();
+
+    // This API may be called from any thread.
+    ContextType* GetContext() const;
+
+   private:
+    template <typename ResourceString,
+              typename Finalizer,
+              typename FinalizerDataType>
+    static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+        napi_env env,
+        const Function& callback,
+        const Object& resource,
+        ResourceString resourceName,
+        size_t maxQueueSize,
+        size_t initialThreadCount,
+        ContextType* context,
+        Finalizer finalizeCallback,
+        FinalizerDataType* data,
+        napi_finalize wrapper);
+
+    static void CallJsInternal(napi_env env,
+                               napi_value jsCallback,
+                               void* context,
+                               void* data);
+
+   protected:
+    napi_threadsafe_function _tsfn;
+  };
+  template <typename DataType>
+  class AsyncProgressWorkerBase : public AsyncWorker {
+    public:
+     virtual void OnWorkProgress(DataType* data) = 0;
+     class ThreadSafeData {
+       public:
+        ThreadSafeData(AsyncProgressWorkerBase* asyncprogressworker, DataType* data)
+          : _asyncprogressworker(asyncprogressworker), _data(data) {}
+
+        AsyncProgressWorkerBase* asyncprogressworker() { return _asyncprogressworker; };
+        DataType* data() { return _data; };
+
+       private:
+        AsyncProgressWorkerBase* _asyncprogressworker;
+        DataType* _data;
+     };
+     void OnWorkComplete(Napi::Env env, napi_status status) override;
+    protected:
+     explicit AsyncProgressWorkerBase(const Object& receiver,
+                                      const Function& callback,
+                                      const char* resource_name,
+                                      const Object& resource,
+                                      size_t queue_size = 1);
+    virtual ~AsyncProgressWorkerBase();
+
+// Optional callback of Napi::ThreadSafeFunction only available after NAPI_VERSION 4.
+// Refs: https://github.com/nodejs/node/pull/27791
+#if NAPI_VERSION > 4
+     explicit AsyncProgressWorkerBase(Napi::Env env,
+                                      const char* resource_name,
+                                      const Object& resource,
+                                      size_t queue_size = 1);
+#endif
+
+     static inline void OnAsyncWorkProgress(Napi::Env env,
+                                            Napi::Function jsCallback,
+                                            void* data);
+
+     napi_status NonBlockingCall(DataType* data);
+
+    private:
+     ThreadSafeFunction _tsfn;
+     bool _work_completed = false;
+     napi_status _complete_status;
+     static inline void OnThreadSafeFunctionFinalize(Napi::Env env, void* data, AsyncProgressWorkerBase* context);
+  };
+
+  template<class T>
+  class AsyncProgressWorker : public AsyncProgressWorkerBase<void> {
+    public:
+     virtual ~AsyncProgressWorker();
+
+     class ExecutionProgress {
+        friend class AsyncProgressWorker;
+       public:
+        void Signal() const;
+        void Send(const T* data, size_t count) const;
+       private:
+        explicit ExecutionProgress(AsyncProgressWorker* worker) : _worker(worker) {}
+        AsyncProgressWorker* const _worker;
+     };
+
+     void OnWorkProgress(void*) override;
+
+    protected:
+     explicit AsyncProgressWorker(const Function& callback);
+     explicit AsyncProgressWorker(const Function& callback,
+                                  const char* resource_name);
+     explicit AsyncProgressWorker(const Function& callback,
+                                  const char* resource_name,
+                                  const Object& resource);
+     explicit AsyncProgressWorker(const Object& receiver,
+                                  const Function& callback);
+     explicit AsyncProgressWorker(const Object& receiver,
+                                  const Function& callback,
+                                  const char* resource_name);
+     explicit AsyncProgressWorker(const Object& receiver,
+                                  const Function& callback,
+                                  const char* resource_name,
+                                  const Object& resource);
+
+// Optional callback of Napi::ThreadSafeFunction only available after NAPI_VERSION 4.
+// Refs: https://github.com/nodejs/node/pull/27791
+#if NAPI_VERSION > 4
+     explicit AsyncProgressWorker(Napi::Env env);
+     explicit AsyncProgressWorker(Napi::Env env,
+                                  const char* resource_name);
+     explicit AsyncProgressWorker(Napi::Env env,
+                                  const char* resource_name,
+                                  const Object& resource);
+#endif
+     virtual void Execute(const ExecutionProgress& progress) = 0;
+     virtual void OnProgress(const T* data, size_t count) = 0;
+
+    private:
+     void Execute() override;
+     void Signal() const;
+     void SendProgress_(const T* data, size_t count);
+
+     std::mutex _mutex;
+     T* _asyncdata;
+     size_t _asyncsize;
+  };
+
+  template<class T>
+  class AsyncProgressQueueWorker : public AsyncProgressWorkerBase<std::pair<T*, size_t>> {
+    public:
+     virtual ~AsyncProgressQueueWorker() {};
+
+     class ExecutionProgress {
+        friend class AsyncProgressQueueWorker;
+       public:
+        void Signal() const;
+        void Send(const T* data, size_t count) const;
+       private:
+        explicit ExecutionProgress(AsyncProgressQueueWorker* worker) : _worker(worker) {}
+        AsyncProgressQueueWorker* const _worker;
+     };
+
+     void OnWorkComplete(Napi::Env env, napi_status status) override;
+     void OnWorkProgress(std::pair<T*, size_t>*) override;
+
+    protected:
+     explicit AsyncProgressQueueWorker(const Function& callback);
+     explicit AsyncProgressQueueWorker(const Function& callback,
+                                       const char* resource_name);
+     explicit AsyncProgressQueueWorker(const Function& callback,
+                                       const char* resource_name,
+                                       const Object& resource);
+     explicit AsyncProgressQueueWorker(const Object& receiver,
+                                       const Function& callback);
+     explicit AsyncProgressQueueWorker(const Object& receiver,
+                                       const Function& callback,
+                                       const char* resource_name);
+     explicit AsyncProgressQueueWorker(const Object& receiver,
+                                       const Function& callback,
+                                       const char* resource_name,
+                                       const Object& resource);
+
+// Optional callback of Napi::ThreadSafeFunction only available after NAPI_VERSION 4.
+// Refs: https://github.com/nodejs/node/pull/27791
+#if NAPI_VERSION > 4
+     explicit AsyncProgressQueueWorker(Napi::Env env);
+     explicit AsyncProgressQueueWorker(Napi::Env env,
+                                       const char* resource_name);
+     explicit AsyncProgressQueueWorker(Napi::Env env,
+                                       const char* resource_name,
+                                       const Object& resource);
+#endif
+     virtual void Execute(const ExecutionProgress& progress) = 0;
+     virtual void OnProgress(const T* data, size_t count) = 0;
+
+    private:
+     void Execute() override;
+     void Signal() const;
+     void SendProgress_(const T* data, size_t count);
+  };
+  #endif  // NAPI_VERSION > 3 && !defined(__wasm32__)
+
+  // Memory management.
+  class MemoryManagement {
+    public:
+      static int64_t AdjustExternalMemory(Env env, int64_t change_in_bytes);
+  };
+
+  // Version management
+  class VersionManagement {
+    public:
+      static uint32_t GetNapiVersion(Env env);
+      static const napi_node_version* GetNodeVersion(Env env);
+  };
+
+#if NAPI_VERSION > 5
+  template <typename T>
+  class Addon : public InstanceWrap<T> {
+   public:
+    static inline Object Init(Env env, Object exports);
+    static T* Unwrap(Object wrapper);
+
+   protected:
+    using AddonProp = ClassPropertyDescriptor<T>;
+    void DefineAddon(Object exports,
+                     const std::initializer_list<AddonProp>& props);
+    Napi::Object DefineProperties(Object object,
+                                 const std::initializer_list<AddonProp>& props);
+
+   private:
+    Object entry_point_;
+  };
+#endif  // NAPI_VERSION > 5
+
+} // namespace Napi
+
+// Inline implementations of all the above class methods are included here.
+#include "napi-inl.h"
+
+#endif // SRC_NAPI_H_
diff --git a/node_modules/node-addon-api/node_api.gyp b/node_modules/node-addon-api/node_api.gyp
new file mode 100644
index 0000000..4ff0ae7
--- /dev/null
+++ b/node_modules/node-addon-api/node_api.gyp
@@ -0,0 +1,9 @@
+{
+  'targets': [
+    {
+      'target_name': 'nothing',
+      'type': 'static_library',
+      'sources': [ 'nothing.c' ]
+    }
+  ]
+}
diff --git a/node_modules/node-addon-api/noexcept.gypi b/node_modules/node-addon-api/noexcept.gypi
new file mode 100644
index 0000000..404a05f
--- /dev/null
+++ b/node_modules/node-addon-api/noexcept.gypi
@@ -0,0 +1,26 @@
+{
+  'defines': [ 'NAPI_DISABLE_CPP_EXCEPTIONS' ],
+  'cflags': [ '-fno-exceptions' ],
+  'cflags_cc': [ '-fno-exceptions' ],
+  'conditions': [
+    ["OS=='win'", {
+      # _HAS_EXCEPTIONS is already defined and set to 0 in common.gypi
+      #"defines": [
+      #  "_HAS_EXCEPTIONS=0"
+      #],
+      "msvs_settings": {
+        "VCCLCompilerTool": {
+          'ExceptionHandling': 0,
+          'EnablePREfast': 'true',
+        },
+      },
+    }],
+    ["OS=='mac'", {
+      'xcode_settings': {
+        'CLANG_CXX_LIBRARY': 'libc++',
+        'MACOSX_DEPLOYMENT_TARGET': '10.7',
+        'GCC_ENABLE_CPP_EXCEPTIONS': 'NO',
+      },
+    }],
+  ],
+}
diff --git a/node_modules/node-addon-api/nothing.c b/node_modules/node-addon-api/nothing.c
new file mode 100644
index 0000000..e69de29
diff --git a/node_modules/node-addon-api/package-support.json b/node_modules/node-addon-api/package-support.json
new file mode 100644
index 0000000..10d3607
--- /dev/null
+++ b/node_modules/node-addon-api/package-support.json
@@ -0,0 +1,21 @@
+{
+  "versions": [
+    {
+      "version": "*",
+      "target": {
+        "node": "active"
+      },
+      "response": {
+        "type": "time-permitting",
+        "paid": false,
+        "contact": {
+          "name": "node-addon-api team",
+          "url": "https://github.com/nodejs/node-addon-api/issues"
+        }
+      },
+      "backing": [ { "project": "https://github.com/nodejs" },
+                   { "foundation": "https://openjsf.org/" }
+      ]
+    }
+  ]
+}
diff --git a/node_modules/node-addon-api/package.json b/node_modules/node-addon-api/package.json
new file mode 100644
index 0000000..fb74a1c
--- /dev/null
+++ b/node_modules/node-addon-api/package.json
@@ -0,0 +1,399 @@
+{
+  "bugs": {
+    "url": "https://github.com/nodejs/node-addon-api/issues"
+  },
+  "contributors": [
+    {
+      "name": "Abhishek Kumar Singh",
+      "url": "https://github.com/abhi11210646"
+    },
+    {
+      "name": "Alba Mendez",
+      "url": "https://github.com/jmendeth"
+    },
+    {
+      "name": "Alexander Floh",
+      "url": "https://github.com/alexanderfloh"
+    },
+    {
+      "name": "András Timár, Dr",
+      "url": "https://github.com/timarandras"
+    },
+    {
+      "name": "Andrew Petersen",
+      "url": "https://github.com/kirbysayshi"
+    },
+    {
+      "name": "Anisha Rohra",
+      "url": "https://github.com/anisha-rohra"
+    },
+    {
+      "name": "Anna Henningsen",
+      "url": "https://github.com/addaleax"
+    },
+    {
+      "name": "Arnaud Botella",
+      "url": "https://github.com/BotellaA"
+    },
+    {
+      "name": "Arunesh Chandra",
+      "url": "https://github.com/aruneshchandra"
+    },
+    {
+      "name": "Azlan Mukhtar",
+      "url": "https://github.com/azlan"
+    },
+    {
+      "name": "Ben Berman",
+      "url": "https://github.com/rivertam"
+    },
+    {
+      "name": "Benjamin Byholm",
+      "url": "https://github.com/kkoopa"
+    },
+    {
+      "name": "Bill Gallafent",
+      "url": "https://github.com/gallafent"
+    },
+    {
+      "name": "blagoev",
+      "url": "https://github.com/blagoev"
+    },
+    {
+      "name": "Bruce A. MacNaughton",
+      "url": "https://github.com/bmacnaughton"
+    },
+    {
+      "name": "Cory Mickelson",
+      "url": "https://github.com/corymickelson"
+    },
+    {
+      "name": "Daniel Bevenius",
+      "url": "https://github.com/danbev"
+    },
+    {
+      "name": "Darshan Sen",
+      "url": "https://github.com/RaisinTen"
+    },
+    {
+      "name": "David Halls",
+      "url": "https://github.com/davedoesdev"
+    },
+    {
+      "name": "Deepak Rajamohan",
+      "url": "https://github.com/deepakrkris"
+    },
+    {
+      "name": "Dmitry Ashkadov",
+      "url": "https://github.com/dmitryash"
+    },
+    {
+      "name": "Dongjin Na",
+      "url": "https://github.com/nadongguri"
+    },
+    {
+      "name": "Doni Rubiagatra",
+      "url": "https://github.com/rubiagatra"
+    },
+    {
+      "name": "Ferdinand Holzer",
+      "url": "https://github.com/fholzer"
+    },
+    {
+      "name": "Eric Bickle",
+      "url": "https://github.com/ebickle"
+    },
+    {
+      "name": "Gabriel Schulhof",
+      "url": "https://github.com/gabrielschulhof"
+    },
+    {
+      "name": "Guenter Sandner",
+      "url": "https://github.com/gms1"
+    },
+    {
+      "name": "Gus Caplan",
+      "url": "https://github.com/devsnek"
+    },
+    {
+      "name": "Helio Frota",
+      "url": "https://github.com/helio-frota"
+    },
+    {
+      "name": "Hitesh Kanwathirtha",
+      "url": "https://github.com/digitalinfinity"
+    },
+    {
+      "name": "ikokostya",
+      "url": "https://github.com/ikokostya"
+    },
+    {
+      "name": "Jack Xia",
+      "url": "https://github.com/JckXia"
+    },
+    {
+      "name": "Jake Barnes",
+      "url": "https://github.com/DuBistKomisch"
+    },
+    {
+      "name": "Jake Yoon",
+      "url": "https://github.com/yjaeseok"
+    },
+    {
+      "name": "Jason Ginchereau",
+      "url": "https://github.com/jasongin"
+    },
+    {
+      "name": "Jeroen Janssen",
+      "url": "https://github.com/japj"
+    },
+    {
+      "name": "Jim Schlight",
+      "url": "https://github.com/jschlight"
+    },
+    {
+      "name": "Jinho Bang",
+      "url": "https://github.com/romandev"
+    },
+    {
+      "name": "José Expósito",
+      "url": "https://github.com/JoseExposito"
+    },
+    {
+      "name": "joshgarde",
+      "url": "https://github.com/joshgarde"
+    },
+    {
+      "name": "Kasumi Hanazuki",
+      "url": "https://github.com/hanazuki"
+    },
+    {
+      "name": "Kelvin",
+      "url": "https://github.com/kelvinhammond"
+    },
+    {
+      "name": "Kevin Eady",
+      "url": "https://github.com/KevinEady"
+    },
+    {
+      "name": "Kévin VOYER",
+      "url": "https://github.com/kecsou"
+    },
+    {
+      "name": "kidneysolo",
+      "url": "https://github.com/kidneysolo"
+    },
+    {
+      "name": "Koki Nishihara",
+      "url": "https://github.com/Nishikoh"
+    },
+    {
+      "name": "Konstantin Tarkus",
+      "url": "https://github.com/koistya"
+    },
+    {
+      "name": "Kyle Farnung",
+      "url": "https://github.com/kfarnung"
+    },
+    {
+      "name": "legendecas",
+      "url": "https://github.com/legendecas"
+    },
+    {
+      "name": "LongYinan",
+      "url": "https://github.com/Brooooooklyn"
+    },
+    {
+      "name": "Lovell Fuller",
+      "url": "https://github.com/lovell"
+    },
+    {
+      "name": "Luciano Martorella",
+      "url": "https://github.com/lmartorella"
+    },
+    {
+      "name": "mastergberry",
+      "url": "https://github.com/mastergberry"
+    },
+    {
+      "name": "Mathias Küsel",
+      "url": "https://github.com/mathiask88"
+    },
+    {
+      "name": "Matteo Collina",
+      "url": "https://github.com/mcollina"
+    },
+    {
+      "name": "Michael Dawson",
+      "url": "https://github.com/mhdawson"
+    },
+    {
+      "name": "Michael Price",
+      "url": "https://github.com/mikepricedev"
+    },
+    {
+      "name": "Michele Campus",
+      "url": "https://github.com/kYroL01"
+    },
+    {
+      "name": "Mikhail Cheshkov",
+      "url": "https://github.com/mcheshkov"
+    },
+    {
+      "name": "nempoBu4",
+      "url": "https://github.com/nempoBu4"
+    },
+    {
+      "name": "Nicola Del Gobbo",
+      "url": "https://github.com/NickNaso"
+    },
+    {
+      "name": "Nick Soggin",
+      "url": "https://github.com/iSkore"
+    },
+    {
+      "name": "Nikolai Vavilov",
+      "url": "https://github.com/seishun"
+    },
+    {
+      "name": "Nurbol Alpysbayev",
+      "url": "https://github.com/anurbol"
+    },
+    {
+      "name": "pacop",
+      "url": "https://github.com/pacop"
+    },
+    {
+      "name": "Philipp Renoth",
+      "url": "https://github.com/DaAitch"
+    },
+    {
+      "name": "Rolf Timmermans",
+      "url": "https://github.com/rolftimmermans"
+    },
+    {
+      "name": "Ross Weir",
+      "url": "https://github.com/ross-weir"
+    },
+    {
+      "name": "Ryuichi Okumura",
+      "url": "https://github.com/okuryu"
+    },
+    {
+      "name": "Sampson Gao",
+      "url": "https://github.com/sampsongao"
+    },
+    {
+      "name": "Sam Roberts",
+      "url": "https://github.com/sam-github"
+    },
+    {
+      "name": "strager",
+      "url": "https://github.com/strager"
+    },
+    {
+      "name": "Taylor Woll",
+      "url": "https://github.com/boingoing"
+    },
+    {
+      "name": "Thomas Gentilhomme",
+      "url": "https://github.com/fraxken"
+    },
+    {
+      "name": "Tim Rach",
+      "url": "https://github.com/timrach"
+    },
+    {
+      "name": "Tobias Nießen",
+      "url": "https://github.com/tniessen"
+    },
+    {
+      "name": "todoroff",
+      "url": "https://github.com/todoroff"
+    },
+    {
+      "name": "Tux3",
+      "url": "https://github.com/tux3"
+    },
+    {
+      "name": "Vlad Velmisov",
+      "url": "https://github.com/Velmisov"
+    },
+    {
+      "name": "WenheLI",
+      "url": "https://github.com/WenheLI"
+    },
+
+    {
+      "name": "Yohei Kishimoto",
+      "url": "https://github.com/morokosi"
+    },
+    {
+      "name": "Yulong Wang",
+      "url": "https://github.com/fs-eire"
+    },
+    {
+      "name": "Ziqiu Zhao",
+      "url": "https://github.com/ZzqiZQute"
+    }
+  ],
+  "description": "Node.js API (Node-API)",
+  "devDependencies": {
+    "benchmark": "^2.1.4",
+    "bindings": "^1.5.0",
+    "clang-format": "^1.4.0",
+    "eslint": "^7.32.0",
+    "eslint-config-semistandard": "^16.0.0",
+    "eslint-config-standard": "^16.0.3",
+    "eslint-plugin-import": "^2.24.2",
+    "eslint-plugin-node": "^11.1.0",
+    "eslint-plugin-promise": "^5.1.0",
+    "fs-extra": "^9.0.1",
+    "path": "^0.12.7",
+    "pre-commit": "^1.2.2",
+    "safe-buffer": "^5.1.1"
+  },
+  "directories": {},
+  "gypfile": false,
+  "homepage": "https://github.com/nodejs/node-addon-api",
+  "keywords": [
+    "n-api",
+    "napi",
+    "addon",
+    "native",
+    "bindings",
+    "c",
+    "c++",
+    "nan",
+    "node-addon-api"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "node-addon-api",
+  "readme": "README.md",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/nodejs/node-addon-api.git"
+  },
+  "files": [
+    "*.{c,h,gyp,gypi}",
+    "package-support.json",
+    "tools/"
+  ],
+  "scripts": {
+    "prebenchmark": "node-gyp rebuild -C benchmark",
+    "benchmark": "node benchmark",
+    "pretest": "node-gyp rebuild -C test",
+    "test": "node test",
+    "predev": "node-gyp rebuild -C test --debug",
+    "dev": "node test",
+    "predev:incremental": "node-gyp configure build -C test --debug",
+    "dev:incremental": "node test",
+    "doc": "doxygen doc/Doxyfile",
+    "lint": "node tools/eslint-format && node tools/clang-format",
+    "lint:fix": "node tools/clang-format --fix && node tools/eslint-format --fix"
+  },
+  "pre-commit": "lint",
+  "version": "4.3.0",
+  "support": true
+}
diff --git a/node_modules/node-addon-api/tools/README.md b/node_modules/node-addon-api/tools/README.md
new file mode 100644
index 0000000..6b80e94
--- /dev/null
+++ b/node_modules/node-addon-api/tools/README.md
@@ -0,0 +1,73 @@
+# Tools
+
+## clang-format
+
+The clang-format checking tools is designed to check changed lines of code compared to given git-refs.
+
+## Migration Script
+
+The migration tool is designed to reduce repetitive work in the migration process. However, the script is not aiming to convert every thing for you. There are usually some small fixes and major reconstruction required.
+
+### How To Use
+
+To run the conversion script, first make sure you have the latest `node-addon-api` in your `node_modules` directory.
+```
+npm install node-addon-api
+```
+
+Then run the script passing your project directory
+```
+node ./node_modules/node-addon-api/tools/conversion.js ./
+```
+
+After finish, recompile and debug things that are missed by the script.
+
+
+### Quick Fixes
+Here is the list of things that can be fixed easily.
+  1. Change your methods' return value to void if it doesn't return value to JavaScript.
+  2. Use `.` to access attribute or to invoke member function in Napi::Object instead of `->`.
+  3. `Napi::New(env, value);` to `Napi::[Type]::New(env, value);
+
+
+### Major Reconstructions
+The implementation of `Napi::ObjectWrap` is significantly different from NAN's. `Napi::ObjectWrap` takes a pointer to the wrapped object and creates a reference to the wrapped object inside ObjectWrap constructor. `Napi::ObjectWrap` also associates wrapped object's instance methods to Javascript module instead of static methods like NAN.
+
+So if you use Nan::ObjectWrap in your module, you will need to execute the following steps.
+
+  1. Convert your [ClassName]::New function to a constructor function that takes a `Napi::CallbackInfo`. Declare it as
+```
+[ClassName](const Napi::CallbackInfo& info);
+```
+and define it as
+```
+[ClassName]::[ClassName](const Napi::CallbackInfo& info) : Napi::ObjectWrap<[ClassName]>(info){
+  ...
+}
+```
+This way, the `Napi::ObjectWrap` constructor will be invoked after the object has been instantiated and `Napi::ObjectWrap` can use the `this` pointer to create a reference to the wrapped object.
+
+  2. Move your original constructor code into the new constructor. Delete your original constructor.
+  3. In your class initialization function, associate native methods in the following way.
+```
+Napi::FunctionReference constructor;
+
+void [ClassName]::Init(Napi::Env env, Napi::Object exports, Napi::Object module) {
+  Napi::HandleScope scope(env);
+  Napi::Function ctor = DefineClass(env, "Canvas", {
+    InstanceMethod<&[ClassName]::Func1>("Func1"),
+    InstanceMethod<&[ClassName]::Func2>("Func2"),
+    InstanceAccessor<&[ClassName]::ValueGetter>("Value"),
+    StaticMethod<&[ClassName]::StaticMethod>("MethodName"),
+    InstanceValue("Value", Napi::[Type]::New(env, value)),
+  });
+
+  constructor = Napi::Persistent(ctor);
+  constructor .SuppressDestruct();
+  exports.Set("[ClassName]", ctor);
+}
+```
+  4. In function where you need to Unwrap the ObjectWrap in NAN like `[ClassName]* native = Nan::ObjectWrap::Unwrap<[ClassName]>(info.This());`, use `this` pointer directly as the unwrapped object as each ObjectWrap instance is associated with a unique object instance.
+
+
+If you still find issues after following this guide, please leave us an issue describing your problem and we will try to resolve it.
diff --git a/node_modules/node-addon-api/tools/check-napi.js b/node_modules/node-addon-api/tools/check-napi.js
new file mode 100644
index 0000000..48fdfc0
--- /dev/null
+++ b/node_modules/node-addon-api/tools/check-napi.js
@@ -0,0 +1,100 @@
+'use strict';
+// Descend into a directory structure and, for each file matching *.node, output
+// based on the imports found in the file whether it's an N-API module or not.
+
+const fs = require('fs');
+const path = require('path');
+const child_process = require('child_process');
+
+// Read the output of the command, break it into lines, and use the reducer to
+// decide whether the file is an N-API module or not.
+function checkFile(file, command, argv, reducer) {
+  const child = child_process.spawn(command, argv, {
+    stdio: ['inherit', 'pipe', 'inherit']
+  });
+  let leftover = '';
+  let isNapi = undefined;
+  child.stdout.on('data', (chunk) => {
+    if (isNapi === undefined) {
+      chunk = (leftover + chunk.toString()).split(/[\r\n]+/);
+      leftover = chunk.pop();
+      isNapi = chunk.reduce(reducer, isNapi);
+      if (isNapi !== undefined) {
+        child.kill();
+      }
+    }
+  });
+  child.on('close', (code, signal) => {
+    if ((code === null && signal !== null) || (code !== 0)) {
+      console.log(
+        command + ' exited with code: '  + code + ' and signal: ' + signal);
+    } else {
+      // Green if it's a N-API module, red otherwise.
+      console.log(
+          '\x1b[' + (isNapi ? '42' : '41') + 'm' +
+          (isNapi ? '    N-API' : 'Not N-API') +
+          '\x1b[0m: ' + file);
+    }
+  });
+}
+
+// Use nm -a to list symbols.
+function checkFileUNIX(file) {
+  checkFile(file, 'nm', ['-a', file], (soFar, line) => {
+    if (soFar === undefined) {
+      line = line.match(/([0-9a-f]*)? ([a-zA-Z]) (.*$)/);
+      if (line[2] === 'U') {
+        if (/^napi/.test(line[3])) {
+          soFar = true;
+        }
+      }
+    }
+    return soFar;
+  });
+}
+
+// Use dumpbin /imports to list symbols.
+function checkFileWin32(file) {
+  checkFile(file, 'dumpbin', ['/imports', file], (soFar, line) => {
+    if (soFar === undefined) {
+      line = line.match(/([0-9a-f]*)? +([a-zA-Z0-9]) (.*$)/);
+      if (line && /^napi/.test(line[line.length - 1])) {
+        soFar = true;
+      }
+    }
+    return soFar;
+  });
+}
+
+// Descend into a directory structure and pass each file ending in '.node' to
+// one of the above checks, depending on the OS.
+function recurse(top) {
+  fs.readdir(top, (error, items) => {
+    if (error) {
+      throw ("error reading directory " + top + ": " + error);
+    }
+    items.forEach((item) => {
+      item = path.join(top, item);
+      fs.stat(item, ((item) => (error, stats) => {
+        if (error) {
+          throw ("error about " + item + ": " + error);
+        }
+        if (stats.isDirectory()) {
+          recurse(item);
+        } else if (/[.]node$/.test(item) &&
+            // Explicitly ignore files called 'nothing.node' because they are
+            // artefacts of node-addon-api having identified a version of
+            // Node.js that ships with a correct implementation of N-API.
+            path.basename(item) !== 'nothing.node') {
+          process.platform === 'win32' ?
+              checkFileWin32(item) :
+              checkFileUNIX(item);
+        }
+      })(item));
+    });
+  });
+}
+
+// Start with the directory given on the command line or the current directory
+// if nothing was given.
+recurse(process.argv.length > 3 ? process.argv[2] : '.');
diff --git a/node_modules/node-addon-api/tools/clang-format.js b/node_modules/node-addon-api/tools/clang-format.js
new file mode 100644
index 0000000..b76d89b
--- /dev/null
+++ b/node_modules/node-addon-api/tools/clang-format.js
@@ -0,0 +1,68 @@
+#!/usr/bin/env node
+
+const spawn = require('child_process').spawnSync;
+const path = require('path');
+
+const filesToCheck = ['*.h', '*.cc'];
+const FORMAT_START = process.env.FORMAT_START || 'main';
+
+function main (args) {
+  let fix = false;
+  while (args.length > 0) {
+    switch (args[0]) {
+      case '-f':
+      case '--fix':
+        fix = true;
+        break;
+      default:
+    }
+    args.shift();
+  }
+
+  const clangFormatPath = path.dirname(require.resolve('clang-format'));
+  const options = ['--binary=node_modules/.bin/clang-format', '--style=file'];
+  if (fix) {
+    options.push(FORMAT_START);
+  } else {
+    options.push('--diff', FORMAT_START);
+  }
+
+  const gitClangFormatPath = path.join(clangFormatPath, 'bin/git-clang-format');
+  const result = spawn(
+    'python',
+    [gitClangFormatPath, ...options, '--', ...filesToCheck],
+    { encoding: 'utf-8' }
+  );
+
+  if (result.stderr) {
+    console.error('Error running git-clang-format:', result.stderr);
+    return 2;
+  }
+
+  const clangFormatOutput = result.stdout.trim();
+  // Bail fast if in fix mode.
+  if (fix) {
+    console.log(clangFormatOutput);
+    return 0;
+  }
+  // Detect if there is any complains from clang-format
+  if (
+    clangFormatOutput !== '' &&
+    clangFormatOutput !== 'no modified files to format' &&
+    clangFormatOutput !== 'clang-format did not modify any files'
+  ) {
+    console.error(clangFormatOutput);
+    const fixCmd = 'npm run lint:fix';
+    console.error(`
+      ERROR: please run "${fixCmd}" to format changes in your commit
+        Note that when running the command locally, please keep your local
+        main branch and working branch up to date with nodejs/node-addon-api
+        to exclude un-related complains.
+        Or you can run "env FORMAT_START=upstream/main ${fixCmd}".`);
+    return 1;
+  }
+}
+
+if (require.main === module) {
+  process.exitCode = main(process.argv.slice(2));
+}
diff --git a/node_modules/node-addon-api/tools/conversion.js b/node_modules/node-addon-api/tools/conversion.js
new file mode 100644
index 0000000..5aef2c3
--- /dev/null
+++ b/node_modules/node-addon-api/tools/conversion.js
@@ -0,0 +1,309 @@
+#! /usr/bin/env node
+
+'use strict'
+
+const fs = require('fs');
+const path = require('path');
+
+const args = process.argv.slice(2);
+const dir = args[0];
+if (!dir) {
+  console.log('Usage: node ' + path.basename(__filename) + ' <target-dir>');
+  process.exit(1);
+}
+
+const NodeApiVersion = require('../package.json').version;
+
+const disable = args[1];
+if (disable != "--disable" && dir != "--disable") {
+  var ConfigFileOperations = {
+    'package.json': [
+       [ /([ ]*)"dependencies": {/g, '$1"dependencies": {\n$1  "node-addon-api": "' + NodeApiVersion + '",'],
+       [ /[ ]*"nan": *"[^"]+"(,|)[\n\r]/g, '' ]
+    ],
+    'binding.gyp': [
+       [ /([ ]*)'include_dirs': \[/g, '$1\'include_dirs\': [\n$1  \'<!(node -p "require(\\\'node-addon-api\\\').include_dir")\',' ],
+       [ /([ ]*)"include_dirs": \[/g, '$1"include_dirs": [\n$1  "<!(node -p \\"require(\'node-addon-api\').include_dir\\")",' ],
+       [ /[ ]*("|')<!\(node -e ("|'|\\"|\\')require\(("|'|\\"|\\')nan("|'|\\"|\\')\)("|'|\\"|\\')\)("|')(,|)[\r\n]/g, '' ],
+       [ /([ ]*)("|')target_name("|'): ("|')(.+?)("|'),/g, '$1$2target_name$2: $4$5$6,\n      $2cflags!$2: [ $2-fno-exceptions$2 ],\n      $2cflags_cc!$2: [ $2-fno-exceptions$2 ],\n      $2xcode_settings$2: { $2GCC_ENABLE_CPP_EXCEPTIONS$2: $2YES$2,\n        $2CLANG_CXX_LIBRARY$2: $2libc++$2,\n        $2MACOSX_DEPLOYMENT_TARGET$2: $210.7$2,\n      },\n      $2msvs_settings$2: {\n        $2VCCLCompilerTool$2: { $2ExceptionHandling$2: 1 },\n      },' ],
+    ]
+  };
+} else {
+  var ConfigFileOperations = {
+    'package.json': [
+      [ /([ ]*)"dependencies": {/g, '$1"dependencies": {\n$1  "node-addon-api": "' + NodeApiVersion + '",'],
+      [ /[ ]*"nan": *"[^"]+"(,|)[\n\r]/g, '' ]
+    ],
+    'binding.gyp': [
+      [ /([ ]*)'include_dirs': \[/g, '$1\'include_dirs\': [\n$1  \'<!(node -p "require(\\\'node-addon-api\\\').include_dir")\',' ],
+      [ /([ ]*)"include_dirs": \[/g, '$1"include_dirs": [\n$1  "<!(node -p \'require(\\\"node-addon-api\\\").include_dir\')",' ],
+      [ /[ ]*("|')<!\(node -e ("|'|\\"|\\')require\(("|'|\\"|\\')nan("|'|\\"|\\')\)("|'|\\"|\\')\)("|')(,|)[\r\n]/g, '' ],
+      [ /([ ]*)("|')target_name("|'): ("|')(.+?)("|'),/g, '$1$2target_name$2: $4$5$6,\n      $2cflags!$2: [ $2-fno-exceptions$2 ],\n      $2cflags_cc!$2: [ $2-fno-exceptions$2 ],\n      $2defines$2: [ $2NAPI_DISABLE_CPP_EXCEPTIONS$2 ],\n      $2conditions$2: [\n        [\'OS==\"win\"\', { $2defines$2: [ $2_HAS_EXCEPTIONS=1$2 ] }]\n      ]' ],
+    ]
+  };
+}
+
+var SourceFileOperations = [
+  [ /Nan::SetMethod\(target,[\s]*\"(.*)\"[\s]*,[\s]*([^)]+)\)/g, 'exports.Set(Napi::String::New(env, \"$1\"), Napi::Function::New(env, $2))' ],
+
+  [ /v8::Local<v8::FunctionTemplate>\s+(\w+)\s*=\s*Nan::New<FunctionTemplate>\([\w\d:]+\);(?:\w+->Reset\(\1\))?\s+\1->SetClassName\(Nan::String::New\("(\w+)"\)\);/g, 'Napi::Function $1 = DefineClass(env, "$2", {' ],
+  [ /Local<FunctionTemplate>\s+(\w+)\s*=\s*Nan::New<FunctionTemplate>\([\w\d:]+\);\s+(\w+)\.Reset\((\1)\);\s+\1->SetClassName\((Nan::String::New|Nan::New<(v8::)*String>)\("(.+?)"\)\);/g, 'Napi::Function $1 = DefineClass(env, "$6", {'],
+  [ /Local<FunctionTemplate>\s+(\w+)\s*=\s*Nan::New<FunctionTemplate>\([\w\d:]+\);(?:\w+->Reset\(\1\))?\s+\1->SetClassName\(Nan::String::New\("(\w+)"\)\);/g, 'Napi::Function $1 = DefineClass(env, "$2", {' ],
+  [ /Nan::New<v8::FunctionTemplate>\(([\w\d:]+)\)->GetFunction\(\)/g, 'Napi::Function::New(env, $1)' ],
+  [ /Nan::New<FunctionTemplate>\(([\w\d:]+)\)->GetFunction()/g, 'Napi::Function::New(env, $1);' ],
+  [ /Nan::New<v8::FunctionTemplate>\(([\w\d:]+)\)/g, 'Napi::Function::New(env, $1)' ],
+  [ /Nan::New<FunctionTemplate>\(([\w\d:]+)\)/g, 'Napi::Function::New(env, $1)' ],
+
+  // FunctionTemplate to FunctionReference
+  [ /Nan::Persistent<(v8::)*FunctionTemplate>/g, 'Napi::FunctionReference' ],
+  [ /Nan::Persistent<(v8::)*Function>/g, 'Napi::FunctionReference' ],
+  [ /v8::Local<v8::FunctionTemplate>/g, 'Napi::FunctionReference' ],
+  [ /Local<FunctionTemplate>/g, 'Napi::FunctionReference' ],
+  [ /v8::FunctionTemplate/g, 'Napi::FunctionReference' ],
+  [ /FunctionTemplate/g, 'Napi::FunctionReference' ],
+
+
+  [ /([ ]*)Nan::SetPrototypeMethod\(\w+, "(\w+)", (\w+)\);/g, '$1InstanceMethod("$2", &$3),' ],
+  [ /([ ]*)(?:\w+\.Reset\(\w+\);\s+)?\(target\)\.Set\("(\w+)",\s*Nan::GetFunction\((\w+)\)\);/gm,
+    '});\n\n' +
+    '$1constructor = Napi::Persistent($3);\n' +
+    '$1constructor.SuppressDestruct();\n' +
+    '$1target.Set("$2", $3);' ],
+
+
+  // TODO: Other attribute combinations
+  [ /static_cast<PropertyAttribute>\(ReadOnly\s*\|\s*DontDelete\)/gm,
+    'static_cast<napi_property_attributes>(napi_enumerable | napi_configurable)' ],
+
+  [ /([\w\d:<>]+?)::Cast\((.+?)\)/g, '$2.As<$1>()' ],
+
+  [ /\*Nan::Utf8String\(([^)]+)\)/g, '$1->As<Napi::String>().Utf8Value().c_str()' ],
+  [ /Nan::Utf8String +(\w+)\(([^)]+)\)/g, 'std::string $1 = $2.As<Napi::String>()' ],
+  [ /Nan::Utf8String/g, 'std::string' ],
+
+  [ /v8::String::Utf8Value (.+?)\((.+?)\)/g, 'Napi::String $1(env, $2)' ],
+  [ /String::Utf8Value (.+?)\((.+?)\)/g, 'Napi::String $1(env, $2)' ],
+  [ /\.length\(\)/g, '.Length()' ],
+
+  [ /Nan::MakeCallback\(([^,]+),[\s\\]+([^,]+),/gm, '$2.MakeCallback($1,' ],
+
+  [ /class\s+(\w+)\s*:\s*public\s+Nan::ObjectWrap/g, 'class $1 : public Napi::ObjectWrap<$1>' ],
+  [ /(\w+)\(([^\)]*)\)\s*:\s*Nan::ObjectWrap\(\)\s*(,)?/gm, '$1($2) : Napi::ObjectWrap<$1>()$3' ],
+
+  // HandleOKCallback to OnOK
+  [ /HandleOKCallback/g, 'OnOK' ],
+  // HandleErrorCallback to OnError
+  [ /HandleErrorCallback/g, 'OnError' ],
+
+  // ex. .As<Function>() to .As<Napi::Object>()
+  [ /\.As<v8::(Value|Boolean|String|Number|Object|Array|Symbol|External|Function)>\(\)/g, '.As<Napi::$1>()' ],
+  [ /\.As<(Value|Boolean|String|Number|Object|Array|Symbol|External|Function)>\(\)/g, '.As<Napi::$1>()' ],
+
+  // ex. Nan::New<Number>(info[0]) to Napi::Number::New(info[0])
+  [ /Nan::New<(v8::)*Integer>\((.+?)\)/g, 'Napi::Number::New(env, $2)' ],
+  [ /Nan::New\(([0-9\.]+)\)/g, 'Napi::Number::New(env, $1)' ],
+  [ /Nan::New<(v8::)*String>\("(.+?)"\)/g, 'Napi::String::New(env, "$2")' ],
+  [ /Nan::New\("(.+?)"\)/g, 'Napi::String::New(env, "$1")' ],
+  [ /Nan::New<(v8::)*(.+?)>\(\)/g, 'Napi::$2::New(env)' ],
+  [ /Nan::New<(.+?)>\(\)/g, 'Napi::$1::New(env)' ],
+  [ /Nan::New<(v8::)*(.+?)>\(/g, 'Napi::$2::New(env, ' ],
+  [ /Nan::New<(.+?)>\(/g, 'Napi::$1::New(env, ' ],
+  [ /Nan::NewBuffer\(/g, 'Napi::Buffer<char>::New(env, ' ],
+  // TODO: Properly handle this
+  [ /Nan::New\(/g, 'Napi::New(env, ' ],
+
+  [ /\.IsInt32\(\)/g, '.IsNumber()' ],
+  [ /->IsInt32\(\)/g, '.IsNumber()' ],
+
+
+  [ /(.+?)->BooleanValue\(\)/g, '$1.As<Napi::Boolean>().Value()' ],
+  [ /(.+?)->Int32Value\(\)/g, '$1.As<Napi::Number>().Int32Value()' ],
+  [ /(.+?)->Uint32Value\(\)/g, '$1.As<Napi::Number>().Uint32Value()' ],
+  [ /(.+?)->IntegerValue\(\)/g, '$1.As<Napi::Number>().Int64Value()' ],
+  [ /(.+?)->NumberValue\(\)/g, '$1.As<Napi::Number>().DoubleValue()' ],
+
+  // ex. Nan::To<bool>(info[0]) to info[0].Value()
+  [ /Nan::To<v8::(Boolean|String|Number|Object|Array|Symbol|Function)>\((.+?)\)/g, '$2.To<Napi::$1>()' ],
+  [ /Nan::To<(Boolean|String|Number|Object|Array|Symbol|Function)>\((.+?)\)/g, '$2.To<Napi::$1>()' ],
+  // ex. Nan::To<bool>(info[0]) to info[0].As<Napi::Boolean>().Value()
+  [ /Nan::To<bool>\((.+?)\)/g, '$1.As<Napi::Boolean>().Value()' ],
+  // ex. Nan::To<int>(info[0]) to info[0].As<Napi::Number>().Int32Value()
+  [ /Nan::To<int>\((.+?)\)/g, '$1.As<Napi::Number>().Int32Value()' ],
+  // ex. Nan::To<int32_t>(info[0]) to info[0].As<Napi::Number>().Int32Value()
+  [ /Nan::To<int32_t>\((.+?)\)/g, '$1.As<Napi::Number>().Int32Value()' ],
+  // ex. Nan::To<uint32_t>(info[0]) to info[0].As<Napi::Number>().Uint32Value()
+  [ /Nan::To<uint32_t>\((.+?)\)/g, '$1.As<Napi::Number>().Uint32Value()' ],
+  // ex. Nan::To<int64_t>(info[0]) to info[0].As<Napi::Number>().Int64Value()
+  [ /Nan::To<int64_t>\((.+?)\)/g, '$1.As<Napi::Number>().Int64Value()' ],
+  // ex. Nan::To<float>(info[0]) to info[0].As<Napi::Number>().FloatValue()
+  [ /Nan::To<float>\((.+?)\)/g, '$1.As<Napi::Number>().FloatValue()' ],
+  // ex. Nan::To<double>(info[0]) to info[0].As<Napi::Number>().DoubleValue()
+  [ /Nan::To<double>\((.+?)\)/g, '$1.As<Napi::Number>().DoubleValue()' ],
+
+  [ /Nan::New\((\w+)\)->HasInstance\((\w+)\)/g, '$2.InstanceOf($1.Value())' ],
+
+  [ /Nan::Has\(([^,]+),\s*/gm, '($1).Has(' ],
+  [ /\.Has\([\s|\\]*Nan::New<(v8::)*String>\(([^)]+)\)\)/gm, '.Has($1)' ],
+  [ /\.Has\([\s|\\]*Nan::New\(([^)]+)\)\)/gm, '.Has($1)' ],
+
+  [ /Nan::Get\(([^,]+),\s*/gm, '($1).Get(' ],
+  [ /\.Get\([\s|\\]*Nan::New<(v8::)*String>\(([^)]+)\)\)/gm, '.Get($1)' ],
+  [ /\.Get\([\s|\\]*Nan::New\(([^)]+)\)\)/gm, '.Get($1)' ],
+
+  [ /Nan::Set\(([^,]+),\s*/gm, '($1).Set(' ],
+  [ /\.Set\([\s|\\]*Nan::New<(v8::)*String>\(([^)]+)\)\s*,/gm, '.Set($1,' ],
+  [ /\.Set\([\s|\\]*Nan::New\(([^)]+)\)\s*,/gm, '.Set($1,' ],
+
+
+  // ex. node::Buffer::HasInstance(info[0]) to info[0].IsBuffer()
+  [ /node::Buffer::HasInstance\((.+?)\)/g, '$1.IsBuffer()' ],
+  // ex. node::Buffer::Length(info[0]) to info[0].Length()
+  [ /node::Buffer::Length\((.+?)\)/g, '$1.As<Napi::Buffer<char>>().Length()' ],
+  // ex. node::Buffer::Data(info[0]) to info[0].Data()
+  [ /node::Buffer::Data\((.+?)\)/g, '$1.As<Napi::Buffer<char>>().Data()' ],
+  [ /Nan::CopyBuffer\(/g, 'Napi::Buffer::Copy(env, ' ],
+
+  // Nan::AsyncQueueWorker(worker)
+  [ /Nan::AsyncQueueWorker\((.+)\);/g, '$1.Queue();' ],
+  [ /Nan::(Undefined|Null|True|False)\(\)/g, 'env.$1()' ],
+
+  // Nan::ThrowError(error) to Napi::Error::New(env, error).ThrowAsJavaScriptException()
+  [ /([ ]*)return Nan::Throw(\w*?)Error\((.+?)\);/g, '$1Napi::$2Error::New(env, $3).ThrowAsJavaScriptException();\n$1return env.Null();' ],
+  [ /Nan::Throw(\w*?)Error\((.+?)\);\n(\s*)return;/g, 'Napi::$1Error::New(env, $2).ThrowAsJavaScriptException();\n$3return env.Null();' ],
+  [ /Nan::Throw(\w*?)Error\((.+?)\);/g, 'Napi::$1Error::New(env, $2).ThrowAsJavaScriptException();\n' ],
+  // Nan::RangeError(error) to Napi::RangeError::New(env, error)
+  [ /Nan::(\w*?)Error\((.+)\)/g, 'Napi::$1Error::New(env, $2)' ],
+
+  [ /Nan::Set\((.+?),\n* *(.+?),\n* *(.+?),\n* *(.+?)\)/g, '$1.Set($2, $3, $4)' ],
+
+  [ /Nan::(Escapable)?HandleScope\s+(\w+)\s*;/g, 'Napi::$1HandleScope $2(env);' ],
+  [ /Nan::(Escapable)?HandleScope/g, 'Napi::$1HandleScope' ],
+  [ /Nan::ForceSet\(([^,]+), ?/g, '$1->DefineProperty(' ],
+  [ /\.ForceSet\(Napi::String::New\(env, "(\w+)"\),\s*?/g, '.DefineProperty("$1", ' ],
+  // [ /Nan::GetPropertyNames\(([^,]+)\)/, '$1->GetPropertyNames()' ],
+  [ /Nan::Equals\(([^,]+),/g, '$1.StrictEquals(' ],
+
+
+  [ /(.+)->Set\(/g, '$1.Set\(' ],
+
+
+  [ /Nan::Callback/g, 'Napi::FunctionReference' ],
+
+
+  [ /Nan::Persistent<Object>/g, 'Napi::ObjectReference' ],
+  [ /Nan::ADDON_REGISTER_FUNCTION_ARGS_TYPE target/g, 'Napi::Env& env, Napi::Object& target' ],
+
+  [ /(\w+)\*\s+(\w+)\s*=\s*Nan::ObjectWrap::Unwrap<\w+>\(info\.This\(\)\);/g, '$1* $2 = this;' ],
+  [ /Nan::ObjectWrap::Unwrap<(\w+)>\((.*)\);/g, '$2.Unwrap<$1>();' ],
+
+  [ /Nan::NAN_METHOD_RETURN_TYPE/g, 'void' ],
+  [ /NAN_INLINE/g, 'inline' ],
+
+  [ /Nan::NAN_METHOD_ARGS_TYPE/g, 'const Napi::CallbackInfo&' ],
+  [ /NAN_METHOD\(([\w\d:]+?)\)/g, 'Napi::Value $1(const Napi::CallbackInfo& info)'],
+  [ /static\s*NAN_GETTER\(([\w\d:]+?)\)/g, 'Napi::Value $1(const Napi::CallbackInfo& info)' ],
+  [ /NAN_GETTER\(([\w\d:]+?)\)/g, 'Napi::Value $1(const Napi::CallbackInfo& info)' ],
+  [ /static\s*NAN_SETTER\(([\w\d:]+?)\)/g, 'void $1(const Napi::CallbackInfo& info, const Napi::Value& value)' ],
+  [ /NAN_SETTER\(([\w\d:]+?)\)/g, 'void $1(const Napi::CallbackInfo& info, const Napi::Value& value)' ],
+  [ /void Init\((v8::)*Local<(v8::)*Object> exports\)/g, 'Napi::Object Init(Napi::Env env, Napi::Object exports)' ],
+  [ /NAN_MODULE_INIT\(([\w\d:]+?)\);/g, 'Napi::Object $1(Napi::Env env, Napi::Object exports);' ],
+  [ /NAN_MODULE_INIT\(([\w\d:]+?)\)/g, 'Napi::Object $1(Napi::Env env, Napi::Object exports)' ],
+
+
+  [ /::(Init(?:ialize)?)\(target\)/g, '::$1(env, target, module)' ],
+  [ /constructor_template/g, 'constructor' ],
+
+  [ /Nan::FunctionCallbackInfo<(v8::)?Value>[ ]*& [ ]*info\)[ ]*{\n*([ ]*)/gm, 'Napi::CallbackInfo& info) {\n$2Napi::Env env = info.Env();\n$2' ],
+  [ /Nan::FunctionCallbackInfo<(v8::)*Value>\s*&\s*info\);/g, 'Napi::CallbackInfo& info);' ],
+  [ /Nan::FunctionCallbackInfo<(v8::)*Value>\s*&/g, 'Napi::CallbackInfo&' ],
+
+  [ /Buffer::HasInstance\(([^)]+)\)/g, '$1.IsBuffer()' ],
+
+  [ /info\[(\d+)\]->/g, 'info[$1].' ],
+  [ /info\[([\w\d]+)\]->/g, 'info[$1].' ],
+  [ /info\.This\(\)->/g, 'info.This().' ],
+  [ /->Is(Object|String|Int32|Number)\(\)/g, '.Is$1()' ],
+  [ /info.GetReturnValue\(\).SetUndefined\(\)/g, 'return env.Undefined()' ],
+  [ /info\.GetReturnValue\(\)\.Set\(((\n|.)+?)\);/g, 'return $1;' ],
+
+
+  // ex. Local<Value> to Napi::Value
+  [ /v8::Local<v8::(Value|Boolean|String|Number|Object|Array|Symbol|External|Function)>/g, 'Napi::$1' ],
+  [ /Local<(Value|Boolean|String|Number|Object|Array|Symbol|External|Function)>/g, 'Napi::$1' ],
+
+  // Declare an env in helper functions that take a Napi::Value
+  [ /(\w+)\(Napi::Value (\w+)(,\s*[^\()]+)?\)\s*{\n*([ ]*)/gm, '$1(Napi::Value $2$3) {\n$4Napi::Env env = $2.Env();\n$4' ],
+
+  // delete #include <node.h> and/or <v8.h>
+  [ /#include +(<|")(?:node|nan).h("|>)/g, "#include $1napi.h$2\n#include $1uv.h$2" ],
+  // NODE_MODULE to NODE_API_MODULE
+  [ /NODE_MODULE/g, 'NODE_API_MODULE' ],
+  [ /Nan::/g, 'Napi::' ],
+  [ /nan.h/g, 'napi.h' ],
+
+  // delete .FromJust()
+  [ /\.FromJust\(\)/g, '' ],
+  // delete .ToLocalCheck()
+  [ /\.ToLocalChecked\(\)/g, '' ],
+  [ /^.*->SetInternalFieldCount\(.*$/gm, '' ],
+
+  // replace using node; and/or using v8; to using Napi;
+  [ /using (node|v8);/g, 'using Napi;' ],
+  [ /using namespace (node|Nan|v8);/g, 'using namespace Napi;' ],
+  // delete using v8::Local;
+  [ /using v8::Local;\n/g, '' ],
+  // replace using v8::XXX; with using Napi::XXX
+  [ /using v8::([A-Za-z]+);/g, 'using Napi::$1;' ],
+
+];
+
+var paths = listFiles(dir);
+paths.forEach(function(dirEntry) {
+  var filename = dirEntry.split('\\').pop().split('/').pop();
+
+  // Check whether the file is a source file or a config file
+  // then execute function accordingly
+  var sourcePattern = /.+\.h|.+\.cc|.+\.cpp/;
+  if (sourcePattern.test(filename)) {
+    convertFile(dirEntry, SourceFileOperations);
+  } else if (ConfigFileOperations[filename] != null) {
+    convertFile(dirEntry, ConfigFileOperations[filename]);
+  }
+});
+
+function listFiles(dir, filelist) {
+  var files = fs.readdirSync(dir);
+  filelist = filelist || [];
+  files.forEach(function(file) {
+    if (file === 'node_modules') {
+      return
+    }
+
+    if (fs.statSync(path.join(dir, file)).isDirectory()) {
+      filelist = listFiles(path.join(dir, file), filelist);
+    } else {
+      filelist.push(path.join(dir, file));
+    }
+  });
+  return filelist;
+}
+
+function convert(content, operations) {
+  for (let i = 0; i < operations.length; i ++) {
+    let operation = operations[i];
+    content = content.replace(operation[0], operation[1]);
+  }
+  return content;
+}
+
+function convertFile(fileName, operations) {
+  fs.readFile(fileName, "utf-8", function (err, file) {
+    if (err) throw err;
+
+    file = convert(file, operations);
+
+    fs.writeFile(fileName, file, function(err){
+      if (err) throw err;
+    });
+  });
+}
diff --git a/node_modules/node-addon-api/tools/eslint-format.js b/node_modules/node-addon-api/tools/eslint-format.js
new file mode 100644
index 0000000..5938835
--- /dev/null
+++ b/node_modules/node-addon-api/tools/eslint-format.js
@@ -0,0 +1,71 @@
+#!/usr/bin/env node
+
+const spawn = require('child_process').spawnSync;
+
+const filesToCheck = '*.js';
+const FORMAT_START = process.env.FORMAT_START || 'main';
+
+function main (args) {
+  let fix = false;
+  while (args.length > 0) {
+    switch (args[0]) {
+      case '-f':
+      case '--fix':
+        fix = true;
+        break;
+      default:
+    }
+    args.shift();
+  }
+
+  // Check js files that change on unstaged file
+  const fileUnStaged = spawn(
+    'git',
+    ['diff', '--name-only', FORMAT_START, filesToCheck],
+    {
+      encoding: 'utf-8'
+    }
+  );
+
+  // Check js files that change on staged file
+  const fileStaged = spawn(
+    'git',
+    ['diff', '--name-only', '--cached', FORMAT_START, filesToCheck],
+    {
+      encoding: 'utf-8'
+    }
+  );
+
+  const options = [
+    ...fileStaged.stdout.split('\n').filter((f) => f !== ''),
+    ...fileUnStaged.stdout.split('\n').filter((f) => f !== '')
+  ];
+
+  if (fix) {
+    options.push('--fix');
+  }
+  const result = spawn('node_modules/.bin/eslint', [...options], {
+    encoding: 'utf-8'
+  });
+
+  if (result.status === 1) {
+    console.error('Eslint error:', result.stdout);
+    const fixCmd = 'npm run lint:fix';
+    console.error(`ERROR: please run "${fixCmd}" to format changes in your commit
+    Note that when running the command locally, please keep your local
+    main branch and working branch up to date with nodejs/node-addon-api
+    to exclude un-related complains.
+    Or you can run "env FORMAT_START=upstream/main ${fixCmd}".
+    Also fix JS files by yourself if necessary.`);
+    return 1;
+  }
+
+  if (result.stderr) {
+    console.error('Error running eslint:', result.stderr);
+    return 2;
+  }
+}
+
+if (require.main === module) {
+  process.exitCode = main(process.argv.slice(2));
+}
diff --git a/node_modules/node-fetch/LICENSE.md b/node_modules/node-fetch/LICENSE.md
new file mode 100644
index 0000000..660ffec
--- /dev/null
+++ b/node_modules/node-fetch/LICENSE.md
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 David Frank
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/node_modules/node-fetch/README.md b/node_modules/node-fetch/README.md
new file mode 100644
index 0000000..55f09b7
--- /dev/null
+++ b/node_modules/node-fetch/README.md
@@ -0,0 +1,634 @@
+node-fetch
+==========
+
+[![npm version][npm-image]][npm-url]
+[![build status][travis-image]][travis-url]
+[![coverage status][codecov-image]][codecov-url]
+[![install size][install-size-image]][install-size-url]
+[![Discord][discord-image]][discord-url]
+
+A light-weight module that brings `window.fetch` to Node.js
+
+(We are looking for [v2 maintainers and collaborators](https://github.com/bitinn/node-fetch/issues/567))
+
+[![Backers][opencollective-image]][opencollective-url]
+
+<!-- TOC -->
+
+- [Motivation](#motivation)
+- [Features](#features)
+- [Difference from client-side fetch](#difference-from-client-side-fetch)
+- [Installation](#installation)
+- [Loading and configuring the module](#loading-and-configuring-the-module)
+- [Common Usage](#common-usage)
+    - [Plain text or HTML](#plain-text-or-html)
+    - [JSON](#json)
+    - [Simple Post](#simple-post)
+    - [Post with JSON](#post-with-json)
+    - [Post with form parameters](#post-with-form-parameters)
+    - [Handling exceptions](#handling-exceptions)
+    - [Handling client and server errors](#handling-client-and-server-errors)
+- [Advanced Usage](#advanced-usage)
+    - [Streams](#streams)
+    - [Buffer](#buffer)
+    - [Accessing Headers and other Meta data](#accessing-headers-and-other-meta-data)
+    - [Extract Set-Cookie Header](#extract-set-cookie-header)
+    - [Post data using a file stream](#post-data-using-a-file-stream)
+    - [Post with form-data (detect multipart)](#post-with-form-data-detect-multipart)
+    - [Request cancellation with AbortSignal](#request-cancellation-with-abortsignal)
+- [API](#api)
+    - [fetch(url[, options])](#fetchurl-options)
+    - [Options](#options)
+    - [Class: Request](#class-request)
+    - [Class: Response](#class-response)
+    - [Class: Headers](#class-headers)
+    - [Interface: Body](#interface-body)
+    - [Class: FetchError](#class-fetcherror)
+- [License](#license)
+- [Acknowledgement](#acknowledgement)
+
+<!-- /TOC -->
+
+## Motivation
+
+Instead of implementing `XMLHttpRequest` in Node.js to run browser-specific [Fetch polyfill](https://github.com/github/fetch), why not go from native `http` to `fetch` API directly? Hence, `node-fetch`, minimal code for a `window.fetch` compatible API on Node.js runtime.
+
+See Matt Andrews' [isomorphic-fetch](https://github.com/matthew-andrews/isomorphic-fetch) or Leonardo Quixada's [cross-fetch](https://github.com/lquixada/cross-fetch) for isomorphic usage (exports `node-fetch` for server-side, `whatwg-fetch` for client-side).
+
+## Features
+
+- Stay consistent with `window.fetch` API.
+- Make conscious trade-off when following [WHATWG fetch spec][whatwg-fetch] and [stream spec](https://streams.spec.whatwg.org/) implementation details, document known differences.
+- Use native promise but allow substituting it with [insert your favorite promise library].
+- Use native Node streams for body on both request and response.
+- Decode content encoding (gzip/deflate) properly and convert string output (such as `res.text()` and `res.json()`) to UTF-8 automatically.
+- Useful extensions such as timeout, redirect limit, response size limit, [explicit errors](ERROR-HANDLING.md) for troubleshooting.
+
+## Difference from client-side fetch
+
+- See [Known Differences](LIMITS.md) for details.
+- If you happen to use a missing feature that `window.fetch` offers, feel free to open an issue.
+- Pull requests are welcomed too!
+
+## Installation
+
+Current stable release (`2.x`)
+
+```sh
+$ npm install node-fetch
+```
+
+## Loading and configuring the module
+We suggest you load the module via `require` until the stabilization of ES modules in node:
+```js
+const fetch = require('node-fetch');
+```
+
+If you are using a Promise library other than native, set it through `fetch.Promise`:
+```js
+const Bluebird = require('bluebird');
+
+fetch.Promise = Bluebird;
+```
+
+## Common Usage
+
+NOTE: The documentation below is up-to-date with `2.x` releases; see the [`1.x` readme](https://github.com/bitinn/node-fetch/blob/1.x/README.md), [changelog](https://github.com/bitinn/node-fetch/blob/1.x/CHANGELOG.md) and [2.x upgrade guide](UPGRADE-GUIDE.md) for the differences.
+
+#### Plain text or HTML
+```js
+fetch('https://github.com/')
+    .then(res => res.text())
+    .then(body => console.log(body));
+```
+
+#### JSON
+
+```js
+
+fetch('https://api.github.com/users/github')
+    .then(res => res.json())
+    .then(json => console.log(json));
+```
+
+#### Simple Post
+```js
+fetch('https://httpbin.org/post', { method: 'POST', body: 'a=1' })
+    .then(res => res.json()) // expecting a json response
+    .then(json => console.log(json));
+```
+
+#### Post with JSON
+
+```js
+const body = { a: 1 };
+
+fetch('https://httpbin.org/post', {
+        method: 'post',
+        body:    JSON.stringify(body),
+        headers: { 'Content-Type': 'application/json' },
+    })
+    .then(res => res.json())
+    .then(json => console.log(json));
+```
+
+#### Post with form parameters
+`URLSearchParams` is available in Node.js as of v7.5.0. See [official documentation](https://nodejs.org/api/url.html#url_class_urlsearchparams) for more usage methods.
+
+NOTE: The `Content-Type` header is only set automatically to `x-www-form-urlencoded` when an instance of `URLSearchParams` is given as such:
+
+```js
+const { URLSearchParams } = require('url');
+
+const params = new URLSearchParams();
+params.append('a', 1);
+
+fetch('https://httpbin.org/post', { method: 'POST', body: params })
+    .then(res => res.json())
+    .then(json => console.log(json));
+```
+
+#### Handling exceptions
+NOTE: 3xx-5xx responses are *NOT* exceptions and should be handled in `then()`; see the next section for more information.
+
+Adding a catch to the fetch promise chain will catch *all* exceptions, such as errors originating from node core libraries, network errors and operational errors, which are instances of FetchError. See the [error handling document](ERROR-HANDLING.md)  for more details.
+
+```js
+fetch('https://domain.invalid/')
+    .catch(err => console.error(err));
+```
+
+#### Handling client and server errors
+It is common to create a helper function to check that the response contains no client (4xx) or server (5xx) error responses:
+
+```js
+function checkStatus(res) {
+    if (res.ok) { // res.status >= 200 && res.status < 300
+        return res;
+    } else {
+        throw MyCustomError(res.statusText);
+    }
+}
+
+fetch('https://httpbin.org/status/400')
+    .then(checkStatus)
+    .then(res => console.log('will not get here...'))
+```
+
+## Advanced Usage
+
+#### Streams
+The "Node.js way" is to use streams when possible:
+
+```js
+fetch('https://assets-cdn.github.com/images/modules/logos_page/Octocat.png')
+    .then(res => {
+        const dest = fs.createWriteStream('./octocat.png');
+        res.body.pipe(dest);
+    });
+```
+
+In Node.js 14 you can also use async iterators to read `body`; however, be careful to catch
+errors -- the longer a response runs, the more likely it is to encounter an error.
+
+```js
+const fetch = require('node-fetch');
+const response = await fetch('https://httpbin.org/stream/3');
+try {
+	for await (const chunk of response.body) {
+		console.dir(JSON.parse(chunk.toString()));
+	}
+} catch (err) {
+	console.error(err.stack);
+}
+```
+
+In Node.js 12 you can also use async iterators to read `body`; however, async iterators with streams
+did not mature until Node.js 14, so you need to do some extra work to ensure you handle errors
+directly from the stream and wait on it response to fully close.
+
+```js
+const fetch = require('node-fetch');
+const read = async body => {
+    let error;
+    body.on('error', err => {
+        error = err;
+    });
+    for await (const chunk of body) {
+        console.dir(JSON.parse(chunk.toString()));
+    }
+    return new Promise((resolve, reject) => {
+        body.on('close', () => {
+            error ? reject(error) : resolve();
+        });
+    });
+};
+try {
+    const response = await fetch('https://httpbin.org/stream/3');
+    await read(response.body);
+} catch (err) {
+    console.error(err.stack);
+}
+```
+
+#### Buffer
+If you prefer to cache binary data in full, use buffer(). (NOTE: `buffer()` is a `node-fetch`-only API)
+
+```js
+const fileType = require('file-type');
+
+fetch('https://assets-cdn.github.com/images/modules/logos_page/Octocat.png')
+    .then(res => res.buffer())
+    .then(buffer => fileType(buffer))
+    .then(type => { /* ... */ });
+```
+
+#### Accessing Headers and other Meta data
+```js
+fetch('https://github.com/')
+    .then(res => {
+        console.log(res.ok);
+        console.log(res.status);
+        console.log(res.statusText);
+        console.log(res.headers.raw());
+        console.log(res.headers.get('content-type'));
+    });
+```
+
+#### Extract Set-Cookie Header
+
+Unlike browsers, you can access raw `Set-Cookie` headers manually using `Headers.raw()`. This is a `node-fetch` only API.
+
+```js
+fetch(url).then(res => {
+    // returns an array of values, instead of a string of comma-separated values
+    console.log(res.headers.raw()['set-cookie']);
+});
+```
+
+#### Post data using a file stream
+
+```js
+const { createReadStream } = require('fs');
+
+const stream = createReadStream('input.txt');
+
+fetch('https://httpbin.org/post', { method: 'POST', body: stream })
+    .then(res => res.json())
+    .then(json => console.log(json));
+```
+
+#### Post with form-data (detect multipart)
+
+```js
+const FormData = require('form-data');
+
+const form = new FormData();
+form.append('a', 1);
+
+fetch('https://httpbin.org/post', { method: 'POST', body: form })
+    .then(res => res.json())
+    .then(json => console.log(json));
+
+// OR, using custom headers
+// NOTE: getHeaders() is non-standard API
+
+const form = new FormData();
+form.append('a', 1);
+
+const options = {
+    method: 'POST',
+    body: form,
+    headers: form.getHeaders()
+}
+
+fetch('https://httpbin.org/post', options)
+    .then(res => res.json())
+    .then(json => console.log(json));
+```
+
+#### Request cancellation with AbortSignal
+
+> NOTE: You may cancel streamed requests only on Node >= v8.0.0
+
+You may cancel requests with `AbortController`. A suggested implementation is [`abort-controller`](https://www.npmjs.com/package/abort-controller).
+
+An example of timing out a request after 150ms could be achieved as the following:
+
+```js
+import AbortController from 'abort-controller';
+
+const controller = new AbortController();
+const timeout = setTimeout(
+  () => { controller.abort(); },
+  150,
+);
+
+fetch(url, { signal: controller.signal })
+  .then(res => res.json())
+  .then(
+    data => {
+      useData(data)
+    },
+    err => {
+      if (err.name === 'AbortError') {
+        // request was aborted
+      }
+    },
+  )
+  .finally(() => {
+    clearTimeout(timeout);
+  });
+```
+
+See [test cases](https://github.com/bitinn/node-fetch/blob/master/test/test.js) for more examples.
+
+
+## API
+
+### fetch(url[, options])
+
+- `url` A string representing the URL for fetching
+- `options` [Options](#fetch-options) for the HTTP(S) request
+- Returns: <code>Promise&lt;[Response](#class-response)&gt;</code>
+
+Perform an HTTP(S) fetch.
+
+`url` should be an absolute url, such as `https://example.com/`. A path-relative URL (`/file/under/root`) or protocol-relative URL (`//can-be-http-or-https.com/`) will result in a rejected `Promise`.
+
+<a id="fetch-options"></a>
+### Options
+
+The default values are shown after each option key.
+
+```js
+{
+    // These properties are part of the Fetch Standard
+    method: 'GET',
+    headers: {},        // request headers. format is the identical to that accepted by the Headers constructor (see below)
+    body: null,         // request body. can be null, a string, a Buffer, a Blob, or a Node.js Readable stream
+    redirect: 'follow', // set to `manual` to extract redirect headers, `error` to reject redirect
+    signal: null,       // pass an instance of AbortSignal to optionally abort requests
+
+    // The following properties are node-fetch extensions
+    follow: 20,         // maximum redirect count. 0 to not follow redirect
+    timeout: 0,         // req/res timeout in ms, it resets on redirect. 0 to disable (OS limit applies). Signal is recommended instead.
+    compress: true,     // support gzip/deflate content encoding. false to disable
+    size: 0,            // maximum response body size in bytes. 0 to disable
+    agent: null         // http(s).Agent instance or function that returns an instance (see below)
+}
+```
+
+##### Default Headers
+
+If no values are set, the following request headers will be sent automatically:
+
+Header              | Value
+------------------- | --------------------------------------------------------
+`Accept-Encoding`   | `gzip,deflate` _(when `options.compress === true`)_
+`Accept`            | `*/*`
+`Content-Length`    | _(automatically calculated, if possible)_
+`Transfer-Encoding` | `chunked` _(when `req.body` is a stream)_
+`User-Agent`        | `node-fetch/1.0 (+https://github.com/bitinn/node-fetch)`
+
+Note: when `body` is a `Stream`, `Content-Length` is not set automatically.
+
+##### Custom Agent
+
+The `agent` option allows you to specify networking related options which are out of the scope of Fetch, including and not limited to the following:
+
+- Support self-signed certificate
+- Use only IPv4 or IPv6
+- Custom DNS Lookup
+
+See [`http.Agent`](https://nodejs.org/api/http.html#http_new_agent_options) for more information.
+
+If no agent is specified, the default agent provided by Node.js is used. Note that [this changed in Node.js 19](https://github.com/nodejs/node/blob/4267b92604ad78584244488e7f7508a690cb80d0/lib/_http_agent.js#L564) to have `keepalive` true by default. If you wish to enable `keepalive` in an earlier version of Node.js, you can override the agent as per the following code sample. 
+
+In addition, the `agent` option accepts a function that returns `http`(s)`.Agent` instance given current [URL](https://nodejs.org/api/url.html), this is useful during a redirection chain across HTTP and HTTPS protocol.
+
+```js
+const httpAgent = new http.Agent({
+    keepAlive: true
+});
+const httpsAgent = new https.Agent({
+    keepAlive: true
+});
+
+const options = {
+    agent: function (_parsedURL) {
+        if (_parsedURL.protocol == 'http:') {
+            return httpAgent;
+        } else {
+            return httpsAgent;
+        }
+    }
+}
+```
+
+<a id="class-request"></a>
+### Class: Request
+
+An HTTP(S) request containing information about URL, method, headers, and the body. This class implements the [Body](#iface-body) interface.
+
+Due to the nature of Node.js, the following properties are not implemented at this moment:
+
+- `type`
+- `destination`
+- `referrer`
+- `referrerPolicy`
+- `mode`
+- `credentials`
+- `cache`
+- `integrity`
+- `keepalive`
+
+The following node-fetch extension properties are provided:
+
+- `follow`
+- `compress`
+- `counter`
+- `agent`
+
+See [options](#fetch-options) for exact meaning of these extensions.
+
+#### new Request(input[, options])
+
+<small>*(spec-compliant)*</small>
+
+- `input` A string representing a URL, or another `Request` (which will be cloned)
+- `options` [Options][#fetch-options] for the HTTP(S) request
+
+Constructs a new `Request` object. The constructor is identical to that in the [browser](https://developer.mozilla.org/en-US/docs/Web/API/Request/Request).
+
+In most cases, directly `fetch(url, options)` is simpler than creating a `Request` object.
+
+<a id="class-response"></a>
+### Class: Response
+
+An HTTP(S) response. This class implements the [Body](#iface-body) interface.
+
+The following properties are not implemented in node-fetch at this moment:
+
+- `Response.error()`
+- `Response.redirect()`
+- `type`
+- `trailer`
+
+#### new Response([body[, options]])
+
+<small>*(spec-compliant)*</small>
+
+- `body` A `String` or [`Readable` stream][node-readable]
+- `options` A [`ResponseInit`][response-init] options dictionary
+
+Constructs a new `Response` object. The constructor is identical to that in the [browser](https://developer.mozilla.org/en-US/docs/Web/API/Response/Response).
+
+Because Node.js does not implement service workers (for which this class was designed), one rarely has to construct a `Response` directly.
+
+#### response.ok
+
+<small>*(spec-compliant)*</small>
+
+Convenience property representing if the request ended normally. Will evaluate to true if the response status was greater than or equal to 200 but smaller than 300.
+
+#### response.redirected
+
+<small>*(spec-compliant)*</small>
+
+Convenience property representing if the request has been redirected at least once. Will evaluate to true if the internal redirect counter is greater than 0.
+
+<a id="class-headers"></a>
+### Class: Headers
+
+This class allows manipulating and iterating over a set of HTTP headers. All methods specified in the [Fetch Standard][whatwg-fetch] are implemented.
+
+#### new Headers([init])
+
+<small>*(spec-compliant)*</small>
+
+- `init` Optional argument to pre-fill the `Headers` object
+
+Construct a new `Headers` object. `init` can be either `null`, a `Headers` object, an key-value map object or any iterable object.
+
+```js
+// Example adapted from https://fetch.spec.whatwg.org/#example-headers-class
+
+const meta = {
+  'Content-Type': 'text/xml',
+  'Breaking-Bad': '<3'
+};
+const headers = new Headers(meta);
+
+// The above is equivalent to
+const meta = [
+  [ 'Content-Type', 'text/xml' ],
+  [ 'Breaking-Bad', '<3' ]
+];
+const headers = new Headers(meta);
+
+// You can in fact use any iterable objects, like a Map or even another Headers
+const meta = new Map();
+meta.set('Content-Type', 'text/xml');
+meta.set('Breaking-Bad', '<3');
+const headers = new Headers(meta);
+const copyOfHeaders = new Headers(headers);
+```
+
+<a id="iface-body"></a>
+### Interface: Body
+
+`Body` is an abstract interface with methods that are applicable to both `Request` and `Response` classes.
+
+The following methods are not yet implemented in node-fetch at this moment:
+
+- `formData()`
+
+#### body.body
+
+<small>*(deviation from spec)*</small>
+
+* Node.js [`Readable` stream][node-readable]
+
+Data are encapsulated in the `Body` object. Note that while the [Fetch Standard][whatwg-fetch] requires the property to always be a WHATWG `ReadableStream`, in node-fetch it is a Node.js [`Readable` stream][node-readable].
+
+#### body.bodyUsed
+
+<small>*(spec-compliant)*</small>
+
+* `Boolean`
+
+A boolean property for if this body has been consumed. Per the specs, a consumed body cannot be used again.
+
+#### body.arrayBuffer()
+#### body.blob()
+#### body.json()
+#### body.text()
+
+<small>*(spec-compliant)*</small>
+
+* Returns: <code>Promise</code>
+
+Consume the body and return a promise that will resolve to one of these formats.
+
+#### body.buffer()
+
+<small>*(node-fetch extension)*</small>
+
+* Returns: <code>Promise&lt;Buffer&gt;</code>
+
+Consume the body and return a promise that will resolve to a Buffer.
+
+#### body.textConverted()
+
+<small>*(node-fetch extension)*</small>
+
+* Returns: <code>Promise&lt;String&gt;</code>
+
+Identical to `body.text()`, except instead of always converting to UTF-8, encoding sniffing will be performed and text converted to UTF-8 if possible.
+
+(This API requires an optional dependency of the npm package [encoding](https://www.npmjs.com/package/encoding), which you need to install manually. `webpack` users may see [a warning message](https://github.com/bitinn/node-fetch/issues/412#issuecomment-379007792) due to this optional dependency.)
+
+<a id="class-fetcherror"></a>
+### Class: FetchError
+
+<small>*(node-fetch extension)*</small>
+
+An operational error in the fetching process. See [ERROR-HANDLING.md][] for more info.
+
+<a id="class-aborterror"></a>
+### Class: AbortError
+
+<small>*(node-fetch extension)*</small>
+
+An Error thrown when the request is aborted in response to an `AbortSignal`'s `abort` event. It has a `name` property of `AbortError`. See [ERROR-HANDLING.MD][] for more info.
+
+## Acknowledgement
+
+Thanks to [github/fetch](https://github.com/github/fetch) for providing a solid implementation reference.
+
+`node-fetch` v1 was maintained by [@bitinn](https://github.com/bitinn); v2 was maintained by [@TimothyGu](https://github.com/timothygu), [@bitinn](https://github.com/bitinn) and [@jimmywarting](https://github.com/jimmywarting); v2 readme is written by [@jkantr](https://github.com/jkantr).
+
+## License
+
+MIT
+
+[npm-image]: https://flat.badgen.net/npm/v/node-fetch
+[npm-url]: https://www.npmjs.com/package/node-fetch
+[travis-image]: https://flat.badgen.net/travis/bitinn/node-fetch
+[travis-url]: https://travis-ci.org/bitinn/node-fetch
+[codecov-image]: https://flat.badgen.net/codecov/c/github/bitinn/node-fetch/master
+[codecov-url]: https://codecov.io/gh/bitinn/node-fetch
+[install-size-image]: https://flat.badgen.net/packagephobia/install/node-fetch
+[install-size-url]: https://packagephobia.now.sh/result?p=node-fetch
+[discord-image]: https://img.shields.io/discord/619915844268326952?color=%237289DA&label=Discord&style=flat-square
+[discord-url]: https://discord.gg/Zxbndcm
+[opencollective-image]: https://opencollective.com/node-fetch/backers.svg
+[opencollective-url]: https://opencollective.com/node-fetch
+[whatwg-fetch]: https://fetch.spec.whatwg.org/
+[response-init]: https://fetch.spec.whatwg.org/#responseinit
+[node-readable]: https://nodejs.org/api/stream.html#stream_readable_streams
+[mdn-headers]: https://developer.mozilla.org/en-US/docs/Web/API/Headers
+[LIMITS.md]: https://github.com/bitinn/node-fetch/blob/master/LIMITS.md
+[ERROR-HANDLING.md]: https://github.com/bitinn/node-fetch/blob/master/ERROR-HANDLING.md
+[UPGRADE-GUIDE.md]: https://github.com/bitinn/node-fetch/blob/master/UPGRADE-GUIDE.md
diff --git a/node_modules/node-fetch/browser.js b/node_modules/node-fetch/browser.js
new file mode 100644
index 0000000..ee86265
--- /dev/null
+++ b/node_modules/node-fetch/browser.js
@@ -0,0 +1,25 @@
+"use strict";
+
+// ref: https://github.com/tc39/proposal-global
+var getGlobal = function () {
+	// the only reliable means to get the global object is
+	// `Function('return this')()`
+	// However, this causes CSP violations in Chrome apps.
+	if (typeof self !== 'undefined') { return self; }
+	if (typeof window !== 'undefined') { return window; }
+	if (typeof global !== 'undefined') { return global; }
+	throw new Error('unable to locate global object');
+}
+
+var globalObject = getGlobal();
+
+module.exports = exports = globalObject.fetch;
+
+// Needed for TypeScript and Webpack.
+if (globalObject.fetch) {
+	exports.default = globalObject.fetch.bind(globalObject);
+}
+
+exports.Headers = globalObject.Headers;
+exports.Request = globalObject.Request;
+exports.Response = globalObject.Response;
diff --git a/node_modules/node-fetch/lib/index.es.js b/node_modules/node-fetch/lib/index.es.js
new file mode 100644
index 0000000..aae9799
--- /dev/null
+++ b/node_modules/node-fetch/lib/index.es.js
@@ -0,0 +1,1777 @@
+process.emitWarning("The .es.js file is deprecated. Use .mjs instead.");
+
+import Stream from 'stream';
+import http from 'http';
+import Url from 'url';
+import whatwgUrl from 'whatwg-url';
+import https from 'https';
+import zlib from 'zlib';
+
+// Based on https://github.com/tmpvar/jsdom/blob/aa85b2abf07766ff7bf5c1f6daafb3726f2f2db5/lib/jsdom/living/blob.js
+
+// fix for "Readable" isn't a named export issue
+const Readable = Stream.Readable;
+
+const BUFFER = Symbol('buffer');
+const TYPE = Symbol('type');
+
+class Blob {
+	constructor() {
+		this[TYPE] = '';
+
+		const blobParts = arguments[0];
+		const options = arguments[1];
+
+		const buffers = [];
+		let size = 0;
+
+		if (blobParts) {
+			const a = blobParts;
+			const length = Number(a.length);
+			for (let i = 0; i < length; i++) {
+				const element = a[i];
+				let buffer;
+				if (element instanceof Buffer) {
+					buffer = element;
+				} else if (ArrayBuffer.isView(element)) {
+					buffer = Buffer.from(element.buffer, element.byteOffset, element.byteLength);
+				} else if (element instanceof ArrayBuffer) {
+					buffer = Buffer.from(element);
+				} else if (element instanceof Blob) {
+					buffer = element[BUFFER];
+				} else {
+					buffer = Buffer.from(typeof element === 'string' ? element : String(element));
+				}
+				size += buffer.length;
+				buffers.push(buffer);
+			}
+		}
+
+		this[BUFFER] = Buffer.concat(buffers);
+
+		let type = options && options.type !== undefined && String(options.type).toLowerCase();
+		if (type && !/[^\u0020-\u007E]/.test(type)) {
+			this[TYPE] = type;
+		}
+	}
+	get size() {
+		return this[BUFFER].length;
+	}
+	get type() {
+		return this[TYPE];
+	}
+	text() {
+		return Promise.resolve(this[BUFFER].toString());
+	}
+	arrayBuffer() {
+		const buf = this[BUFFER];
+		const ab = buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
+		return Promise.resolve(ab);
+	}
+	stream() {
+		const readable = new Readable();
+		readable._read = function () {};
+		readable.push(this[BUFFER]);
+		readable.push(null);
+		return readable;
+	}
+	toString() {
+		return '[object Blob]';
+	}
+	slice() {
+		const size = this.size;
+
+		const start = arguments[0];
+		const end = arguments[1];
+		let relativeStart, relativeEnd;
+		if (start === undefined) {
+			relativeStart = 0;
+		} else if (start < 0) {
+			relativeStart = Math.max(size + start, 0);
+		} else {
+			relativeStart = Math.min(start, size);
+		}
+		if (end === undefined) {
+			relativeEnd = size;
+		} else if (end < 0) {
+			relativeEnd = Math.max(size + end, 0);
+		} else {
+			relativeEnd = Math.min(end, size);
+		}
+		const span = Math.max(relativeEnd - relativeStart, 0);
+
+		const buffer = this[BUFFER];
+		const slicedBuffer = buffer.slice(relativeStart, relativeStart + span);
+		const blob = new Blob([], { type: arguments[2] });
+		blob[BUFFER] = slicedBuffer;
+		return blob;
+	}
+}
+
+Object.defineProperties(Blob.prototype, {
+	size: { enumerable: true },
+	type: { enumerable: true },
+	slice: { enumerable: true }
+});
+
+Object.defineProperty(Blob.prototype, Symbol.toStringTag, {
+	value: 'Blob',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+/**
+ * fetch-error.js
+ *
+ * FetchError interface for operational errors
+ */
+
+/**
+ * Create FetchError instance
+ *
+ * @param   String      message      Error message for human
+ * @param   String      type         Error type for machine
+ * @param   String      systemError  For Node.js system error
+ * @return  FetchError
+ */
+function FetchError(message, type, systemError) {
+  Error.call(this, message);
+
+  this.message = message;
+  this.type = type;
+
+  // when err.type is `system`, err.code contains system error code
+  if (systemError) {
+    this.code = this.errno = systemError.code;
+  }
+
+  // hide custom error implementation details from end-users
+  Error.captureStackTrace(this, this.constructor);
+}
+
+FetchError.prototype = Object.create(Error.prototype);
+FetchError.prototype.constructor = FetchError;
+FetchError.prototype.name = 'FetchError';
+
+let convert;
+try {
+	convert = require('encoding').convert;
+} catch (e) {}
+
+const INTERNALS = Symbol('Body internals');
+
+// fix an issue where "PassThrough" isn't a named export for node <10
+const PassThrough = Stream.PassThrough;
+
+/**
+ * Body mixin
+ *
+ * Ref: https://fetch.spec.whatwg.org/#body
+ *
+ * @param   Stream  body  Readable stream
+ * @param   Object  opts  Response options
+ * @return  Void
+ */
+function Body(body) {
+	var _this = this;
+
+	var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
+	    _ref$size = _ref.size;
+
+	let size = _ref$size === undefined ? 0 : _ref$size;
+	var _ref$timeout = _ref.timeout;
+	let timeout = _ref$timeout === undefined ? 0 : _ref$timeout;
+
+	if (body == null) {
+		// body is undefined or null
+		body = null;
+	} else if (isURLSearchParams(body)) {
+		// body is a URLSearchParams
+		body = Buffer.from(body.toString());
+	} else if (isBlob(body)) ; else if (Buffer.isBuffer(body)) ; else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
+		// body is ArrayBuffer
+		body = Buffer.from(body);
+	} else if (ArrayBuffer.isView(body)) {
+		// body is ArrayBufferView
+		body = Buffer.from(body.buffer, body.byteOffset, body.byteLength);
+	} else if (body instanceof Stream) ; else {
+		// none of the above
+		// coerce to string then buffer
+		body = Buffer.from(String(body));
+	}
+	this[INTERNALS] = {
+		body,
+		disturbed: false,
+		error: null
+	};
+	this.size = size;
+	this.timeout = timeout;
+
+	if (body instanceof Stream) {
+		body.on('error', function (err) {
+			const error = err.name === 'AbortError' ? err : new FetchError(`Invalid response body while trying to fetch ${_this.url}: ${err.message}`, 'system', err);
+			_this[INTERNALS].error = error;
+		});
+	}
+}
+
+Body.prototype = {
+	get body() {
+		return this[INTERNALS].body;
+	},
+
+	get bodyUsed() {
+		return this[INTERNALS].disturbed;
+	},
+
+	/**
+  * Decode response as ArrayBuffer
+  *
+  * @return  Promise
+  */
+	arrayBuffer() {
+		return consumeBody.call(this).then(function (buf) {
+			return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
+		});
+	},
+
+	/**
+  * Return raw response as Blob
+  *
+  * @return Promise
+  */
+	blob() {
+		let ct = this.headers && this.headers.get('content-type') || '';
+		return consumeBody.call(this).then(function (buf) {
+			return Object.assign(
+			// Prevent copying
+			new Blob([], {
+				type: ct.toLowerCase()
+			}), {
+				[BUFFER]: buf
+			});
+		});
+	},
+
+	/**
+  * Decode response as json
+  *
+  * @return  Promise
+  */
+	json() {
+		var _this2 = this;
+
+		return consumeBody.call(this).then(function (buffer) {
+			try {
+				return JSON.parse(buffer.toString());
+			} catch (err) {
+				return Body.Promise.reject(new FetchError(`invalid json response body at ${_this2.url} reason: ${err.message}`, 'invalid-json'));
+			}
+		});
+	},
+
+	/**
+  * Decode response as text
+  *
+  * @return  Promise
+  */
+	text() {
+		return consumeBody.call(this).then(function (buffer) {
+			return buffer.toString();
+		});
+	},
+
+	/**
+  * Decode response as buffer (non-spec api)
+  *
+  * @return  Promise
+  */
+	buffer() {
+		return consumeBody.call(this);
+	},
+
+	/**
+  * Decode response as text, while automatically detecting the encoding and
+  * trying to decode to UTF-8 (non-spec api)
+  *
+  * @return  Promise
+  */
+	textConverted() {
+		var _this3 = this;
+
+		return consumeBody.call(this).then(function (buffer) {
+			return convertBody(buffer, _this3.headers);
+		});
+	}
+};
+
+// In browsers, all properties are enumerable.
+Object.defineProperties(Body.prototype, {
+	body: { enumerable: true },
+	bodyUsed: { enumerable: true },
+	arrayBuffer: { enumerable: true },
+	blob: { enumerable: true },
+	json: { enumerable: true },
+	text: { enumerable: true }
+});
+
+Body.mixIn = function (proto) {
+	for (const name of Object.getOwnPropertyNames(Body.prototype)) {
+		// istanbul ignore else: future proof
+		if (!(name in proto)) {
+			const desc = Object.getOwnPropertyDescriptor(Body.prototype, name);
+			Object.defineProperty(proto, name, desc);
+		}
+	}
+};
+
+/**
+ * Consume and convert an entire Body to a Buffer.
+ *
+ * Ref: https://fetch.spec.whatwg.org/#concept-body-consume-body
+ *
+ * @return  Promise
+ */
+function consumeBody() {
+	var _this4 = this;
+
+	if (this[INTERNALS].disturbed) {
+		return Body.Promise.reject(new TypeError(`body used already for: ${this.url}`));
+	}
+
+	this[INTERNALS].disturbed = true;
+
+	if (this[INTERNALS].error) {
+		return Body.Promise.reject(this[INTERNALS].error);
+	}
+
+	let body = this.body;
+
+	// body is null
+	if (body === null) {
+		return Body.Promise.resolve(Buffer.alloc(0));
+	}
+
+	// body is blob
+	if (isBlob(body)) {
+		body = body.stream();
+	}
+
+	// body is buffer
+	if (Buffer.isBuffer(body)) {
+		return Body.Promise.resolve(body);
+	}
+
+	// istanbul ignore if: should never happen
+	if (!(body instanceof Stream)) {
+		return Body.Promise.resolve(Buffer.alloc(0));
+	}
+
+	// body is stream
+	// get ready to actually consume the body
+	let accum = [];
+	let accumBytes = 0;
+	let abort = false;
+
+	return new Body.Promise(function (resolve, reject) {
+		let resTimeout;
+
+		// allow timeout on slow response body
+		if (_this4.timeout) {
+			resTimeout = setTimeout(function () {
+				abort = true;
+				reject(new FetchError(`Response timeout while trying to fetch ${_this4.url} (over ${_this4.timeout}ms)`, 'body-timeout'));
+			}, _this4.timeout);
+		}
+
+		// handle stream errors
+		body.on('error', function (err) {
+			if (err.name === 'AbortError') {
+				// if the request was aborted, reject with this Error
+				abort = true;
+				reject(err);
+			} else {
+				// other errors, such as incorrect content-encoding
+				reject(new FetchError(`Invalid response body while trying to fetch ${_this4.url}: ${err.message}`, 'system', err));
+			}
+		});
+
+		body.on('data', function (chunk) {
+			if (abort || chunk === null) {
+				return;
+			}
+
+			if (_this4.size && accumBytes + chunk.length > _this4.size) {
+				abort = true;
+				reject(new FetchError(`content size at ${_this4.url} over limit: ${_this4.size}`, 'max-size'));
+				return;
+			}
+
+			accumBytes += chunk.length;
+			accum.push(chunk);
+		});
+
+		body.on('end', function () {
+			if (abort) {
+				return;
+			}
+
+			clearTimeout(resTimeout);
+
+			try {
+				resolve(Buffer.concat(accum, accumBytes));
+			} catch (err) {
+				// handle streams that have accumulated too much data (issue #414)
+				reject(new FetchError(`Could not create Buffer from response body for ${_this4.url}: ${err.message}`, 'system', err));
+			}
+		});
+	});
+}
+
+/**
+ * Detect buffer encoding and convert to target encoding
+ * ref: http://www.w3.org/TR/2011/WD-html5-20110113/parsing.html#determining-the-character-encoding
+ *
+ * @param   Buffer  buffer    Incoming buffer
+ * @param   String  encoding  Target encoding
+ * @return  String
+ */
+function convertBody(buffer, headers) {
+	if (typeof convert !== 'function') {
+		throw new Error('The package `encoding` must be installed to use the textConverted() function');
+	}
+
+	const ct = headers.get('content-type');
+	let charset = 'utf-8';
+	let res, str;
+
+	// header
+	if (ct) {
+		res = /charset=([^;]*)/i.exec(ct);
+	}
+
+	// no charset in content type, peek at response body for at most 1024 bytes
+	str = buffer.slice(0, 1024).toString();
+
+	// html5
+	if (!res && str) {
+		res = /<meta.+?charset=(['"])(.+?)\1/i.exec(str);
+	}
+
+	// html4
+	if (!res && str) {
+		res = /<meta[\s]+?http-equiv=(['"])content-type\1[\s]+?content=(['"])(.+?)\2/i.exec(str);
+		if (!res) {
+			res = /<meta[\s]+?content=(['"])(.+?)\1[\s]+?http-equiv=(['"])content-type\3/i.exec(str);
+			if (res) {
+				res.pop(); // drop last quote
+			}
+		}
+
+		if (res) {
+			res = /charset=(.*)/i.exec(res.pop());
+		}
+	}
+
+	// xml
+	if (!res && str) {
+		res = /<\?xml.+?encoding=(['"])(.+?)\1/i.exec(str);
+	}
+
+	// found charset
+	if (res) {
+		charset = res.pop();
+
+		// prevent decode issues when sites use incorrect encoding
+		// ref: https://hsivonen.fi/encoding-menu/
+		if (charset === 'gb2312' || charset === 'gbk') {
+			charset = 'gb18030';
+		}
+	}
+
+	// turn raw buffers into a single utf-8 buffer
+	return convert(buffer, 'UTF-8', charset).toString();
+}
+
+/**
+ * Detect a URLSearchParams object
+ * ref: https://github.com/bitinn/node-fetch/issues/296#issuecomment-307598143
+ *
+ * @param   Object  obj     Object to detect by type or brand
+ * @return  String
+ */
+function isURLSearchParams(obj) {
+	// Duck-typing as a necessary condition.
+	if (typeof obj !== 'object' || typeof obj.append !== 'function' || typeof obj.delete !== 'function' || typeof obj.get !== 'function' || typeof obj.getAll !== 'function' || typeof obj.has !== 'function' || typeof obj.set !== 'function') {
+		return false;
+	}
+
+	// Brand-checking and more duck-typing as optional condition.
+	return obj.constructor.name === 'URLSearchParams' || Object.prototype.toString.call(obj) === '[object URLSearchParams]' || typeof obj.sort === 'function';
+}
+
+/**
+ * Check if `obj` is a W3C `Blob` object (which `File` inherits from)
+ * @param  {*} obj
+ * @return {boolean}
+ */
+function isBlob(obj) {
+	return typeof obj === 'object' && typeof obj.arrayBuffer === 'function' && typeof obj.type === 'string' && typeof obj.stream === 'function' && typeof obj.constructor === 'function' && typeof obj.constructor.name === 'string' && /^(Blob|File)$/.test(obj.constructor.name) && /^(Blob|File)$/.test(obj[Symbol.toStringTag]);
+}
+
+/**
+ * Clone body given Res/Req instance
+ *
+ * @param   Mixed  instance  Response or Request instance
+ * @return  Mixed
+ */
+function clone(instance) {
+	let p1, p2;
+	let body = instance.body;
+
+	// don't allow cloning a used body
+	if (instance.bodyUsed) {
+		throw new Error('cannot clone body after it is used');
+	}
+
+	// check that body is a stream and not form-data object
+	// note: we can't clone the form-data object without having it as a dependency
+	if (body instanceof Stream && typeof body.getBoundary !== 'function') {
+		// tee instance body
+		p1 = new PassThrough();
+		p2 = new PassThrough();
+		body.pipe(p1);
+		body.pipe(p2);
+		// set instance body to teed body and return the other teed body
+		instance[INTERNALS].body = p1;
+		body = p2;
+	}
+
+	return body;
+}
+
+/**
+ * Performs the operation "extract a `Content-Type` value from |object|" as
+ * specified in the specification:
+ * https://fetch.spec.whatwg.org/#concept-bodyinit-extract
+ *
+ * This function assumes that instance.body is present.
+ *
+ * @param   Mixed  instance  Any options.body input
+ */
+function extractContentType(body) {
+	if (body === null) {
+		// body is null
+		return null;
+	} else if (typeof body === 'string') {
+		// body is string
+		return 'text/plain;charset=UTF-8';
+	} else if (isURLSearchParams(body)) {
+		// body is a URLSearchParams
+		return 'application/x-www-form-urlencoded;charset=UTF-8';
+	} else if (isBlob(body)) {
+		// body is blob
+		return body.type || null;
+	} else if (Buffer.isBuffer(body)) {
+		// body is buffer
+		return null;
+	} else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
+		// body is ArrayBuffer
+		return null;
+	} else if (ArrayBuffer.isView(body)) {
+		// body is ArrayBufferView
+		return null;
+	} else if (typeof body.getBoundary === 'function') {
+		// detect form data input from form-data module
+		return `multipart/form-data;boundary=${body.getBoundary()}`;
+	} else if (body instanceof Stream) {
+		// body is stream
+		// can't really do much about this
+		return null;
+	} else {
+		// Body constructor defaults other things to string
+		return 'text/plain;charset=UTF-8';
+	}
+}
+
+/**
+ * The Fetch Standard treats this as if "total bytes" is a property on the body.
+ * For us, we have to explicitly get it with a function.
+ *
+ * ref: https://fetch.spec.whatwg.org/#concept-body-total-bytes
+ *
+ * @param   Body    instance   Instance of Body
+ * @return  Number?            Number of bytes, or null if not possible
+ */
+function getTotalBytes(instance) {
+	const body = instance.body;
+
+
+	if (body === null) {
+		// body is null
+		return 0;
+	} else if (isBlob(body)) {
+		return body.size;
+	} else if (Buffer.isBuffer(body)) {
+		// body is buffer
+		return body.length;
+	} else if (body && typeof body.getLengthSync === 'function') {
+		// detect form data input from form-data module
+		if (body._lengthRetrievers && body._lengthRetrievers.length == 0 || // 1.x
+		body.hasKnownLength && body.hasKnownLength()) {
+			// 2.x
+			return body.getLengthSync();
+		}
+		return null;
+	} else {
+		// body is stream
+		return null;
+	}
+}
+
+/**
+ * Write a Body to a Node.js WritableStream (e.g. http.Request) object.
+ *
+ * @param   Body    instance   Instance of Body
+ * @return  Void
+ */
+function writeToStream(dest, instance) {
+	const body = instance.body;
+
+
+	if (body === null) {
+		// body is null
+		dest.end();
+	} else if (isBlob(body)) {
+		body.stream().pipe(dest);
+	} else if (Buffer.isBuffer(body)) {
+		// body is buffer
+		dest.write(body);
+		dest.end();
+	} else {
+		// body is stream
+		body.pipe(dest);
+	}
+}
+
+// expose Promise
+Body.Promise = global.Promise;
+
+/**
+ * headers.js
+ *
+ * Headers class offers convenient helpers
+ */
+
+const invalidTokenRegex = /[^\^_`a-zA-Z\-0-9!#$%&'*+.|~]/;
+const invalidHeaderCharRegex = /[^\t\x20-\x7e\x80-\xff]/;
+
+function validateName(name) {
+	name = `${name}`;
+	if (invalidTokenRegex.test(name) || name === '') {
+		throw new TypeError(`${name} is not a legal HTTP header name`);
+	}
+}
+
+function validateValue(value) {
+	value = `${value}`;
+	if (invalidHeaderCharRegex.test(value)) {
+		throw new TypeError(`${value} is not a legal HTTP header value`);
+	}
+}
+
+/**
+ * Find the key in the map object given a header name.
+ *
+ * Returns undefined if not found.
+ *
+ * @param   String  name  Header name
+ * @return  String|Undefined
+ */
+function find(map, name) {
+	name = name.toLowerCase();
+	for (const key in map) {
+		if (key.toLowerCase() === name) {
+			return key;
+		}
+	}
+	return undefined;
+}
+
+const MAP = Symbol('map');
+class Headers {
+	/**
+  * Headers class
+  *
+  * @param   Object  headers  Response headers
+  * @return  Void
+  */
+	constructor() {
+		let init = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : undefined;
+
+		this[MAP] = Object.create(null);
+
+		if (init instanceof Headers) {
+			const rawHeaders = init.raw();
+			const headerNames = Object.keys(rawHeaders);
+
+			for (const headerName of headerNames) {
+				for (const value of rawHeaders[headerName]) {
+					this.append(headerName, value);
+				}
+			}
+
+			return;
+		}
+
+		// We don't worry about converting prop to ByteString here as append()
+		// will handle it.
+		if (init == null) ; else if (typeof init === 'object') {
+			const method = init[Symbol.iterator];
+			if (method != null) {
+				if (typeof method !== 'function') {
+					throw new TypeError('Header pairs must be iterable');
+				}
+
+				// sequence<sequence<ByteString>>
+				// Note: per spec we have to first exhaust the lists then process them
+				const pairs = [];
+				for (const pair of init) {
+					if (typeof pair !== 'object' || typeof pair[Symbol.iterator] !== 'function') {
+						throw new TypeError('Each header pair must be iterable');
+					}
+					pairs.push(Array.from(pair));
+				}
+
+				for (const pair of pairs) {
+					if (pair.length !== 2) {
+						throw new TypeError('Each header pair must be a name/value tuple');
+					}
+					this.append(pair[0], pair[1]);
+				}
+			} else {
+				// record<ByteString, ByteString>
+				for (const key of Object.keys(init)) {
+					const value = init[key];
+					this.append(key, value);
+				}
+			}
+		} else {
+			throw new TypeError('Provided initializer must be an object');
+		}
+	}
+
+	/**
+  * Return combined header value given name
+  *
+  * @param   String  name  Header name
+  * @return  Mixed
+  */
+	get(name) {
+		name = `${name}`;
+		validateName(name);
+		const key = find(this[MAP], name);
+		if (key === undefined) {
+			return null;
+		}
+
+		return this[MAP][key].join(', ');
+	}
+
+	/**
+  * Iterate over all headers
+  *
+  * @param   Function  callback  Executed for each item with parameters (value, name, thisArg)
+  * @param   Boolean   thisArg   `this` context for callback function
+  * @return  Void
+  */
+	forEach(callback) {
+		let thisArg = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : undefined;
+
+		let pairs = getHeaders(this);
+		let i = 0;
+		while (i < pairs.length) {
+			var _pairs$i = pairs[i];
+			const name = _pairs$i[0],
+			      value = _pairs$i[1];
+
+			callback.call(thisArg, value, name, this);
+			pairs = getHeaders(this);
+			i++;
+		}
+	}
+
+	/**
+  * Overwrite header values given name
+  *
+  * @param   String  name   Header name
+  * @param   String  value  Header value
+  * @return  Void
+  */
+	set(name, value) {
+		name = `${name}`;
+		value = `${value}`;
+		validateName(name);
+		validateValue(value);
+		const key = find(this[MAP], name);
+		this[MAP][key !== undefined ? key : name] = [value];
+	}
+
+	/**
+  * Append a value onto existing header
+  *
+  * @param   String  name   Header name
+  * @param   String  value  Header value
+  * @return  Void
+  */
+	append(name, value) {
+		name = `${name}`;
+		value = `${value}`;
+		validateName(name);
+		validateValue(value);
+		const key = find(this[MAP], name);
+		if (key !== undefined) {
+			this[MAP][key].push(value);
+		} else {
+			this[MAP][name] = [value];
+		}
+	}
+
+	/**
+  * Check for header name existence
+  *
+  * @param   String   name  Header name
+  * @return  Boolean
+  */
+	has(name) {
+		name = `${name}`;
+		validateName(name);
+		return find(this[MAP], name) !== undefined;
+	}
+
+	/**
+  * Delete all header values given name
+  *
+  * @param   String  name  Header name
+  * @return  Void
+  */
+	delete(name) {
+		name = `${name}`;
+		validateName(name);
+		const key = find(this[MAP], name);
+		if (key !== undefined) {
+			delete this[MAP][key];
+		}
+	}
+
+	/**
+  * Return raw headers (non-spec api)
+  *
+  * @return  Object
+  */
+	raw() {
+		return this[MAP];
+	}
+
+	/**
+  * Get an iterator on keys.
+  *
+  * @return  Iterator
+  */
+	keys() {
+		return createHeadersIterator(this, 'key');
+	}
+
+	/**
+  * Get an iterator on values.
+  *
+  * @return  Iterator
+  */
+	values() {
+		return createHeadersIterator(this, 'value');
+	}
+
+	/**
+  * Get an iterator on entries.
+  *
+  * This is the default iterator of the Headers object.
+  *
+  * @return  Iterator
+  */
+	[Symbol.iterator]() {
+		return createHeadersIterator(this, 'key+value');
+	}
+}
+Headers.prototype.entries = Headers.prototype[Symbol.iterator];
+
+Object.defineProperty(Headers.prototype, Symbol.toStringTag, {
+	value: 'Headers',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+Object.defineProperties(Headers.prototype, {
+	get: { enumerable: true },
+	forEach: { enumerable: true },
+	set: { enumerable: true },
+	append: { enumerable: true },
+	has: { enumerable: true },
+	delete: { enumerable: true },
+	keys: { enumerable: true },
+	values: { enumerable: true },
+	entries: { enumerable: true }
+});
+
+function getHeaders(headers) {
+	let kind = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'key+value';
+
+	const keys = Object.keys(headers[MAP]).sort();
+	return keys.map(kind === 'key' ? function (k) {
+		return k.toLowerCase();
+	} : kind === 'value' ? function (k) {
+		return headers[MAP][k].join(', ');
+	} : function (k) {
+		return [k.toLowerCase(), headers[MAP][k].join(', ')];
+	});
+}
+
+const INTERNAL = Symbol('internal');
+
+function createHeadersIterator(target, kind) {
+	const iterator = Object.create(HeadersIteratorPrototype);
+	iterator[INTERNAL] = {
+		target,
+		kind,
+		index: 0
+	};
+	return iterator;
+}
+
+const HeadersIteratorPrototype = Object.setPrototypeOf({
+	next() {
+		// istanbul ignore if
+		if (!this || Object.getPrototypeOf(this) !== HeadersIteratorPrototype) {
+			throw new TypeError('Value of `this` is not a HeadersIterator');
+		}
+
+		var _INTERNAL = this[INTERNAL];
+		const target = _INTERNAL.target,
+		      kind = _INTERNAL.kind,
+		      index = _INTERNAL.index;
+
+		const values = getHeaders(target, kind);
+		const len = values.length;
+		if (index >= len) {
+			return {
+				value: undefined,
+				done: true
+			};
+		}
+
+		this[INTERNAL].index = index + 1;
+
+		return {
+			value: values[index],
+			done: false
+		};
+	}
+}, Object.getPrototypeOf(Object.getPrototypeOf([][Symbol.iterator]())));
+
+Object.defineProperty(HeadersIteratorPrototype, Symbol.toStringTag, {
+	value: 'HeadersIterator',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+/**
+ * Export the Headers object in a form that Node.js can consume.
+ *
+ * @param   Headers  headers
+ * @return  Object
+ */
+function exportNodeCompatibleHeaders(headers) {
+	const obj = Object.assign({ __proto__: null }, headers[MAP]);
+
+	// http.request() only supports string as Host header. This hack makes
+	// specifying custom Host header possible.
+	const hostHeaderKey = find(headers[MAP], 'Host');
+	if (hostHeaderKey !== undefined) {
+		obj[hostHeaderKey] = obj[hostHeaderKey][0];
+	}
+
+	return obj;
+}
+
+/**
+ * Create a Headers object from an object of headers, ignoring those that do
+ * not conform to HTTP grammar productions.
+ *
+ * @param   Object  obj  Object of headers
+ * @return  Headers
+ */
+function createHeadersLenient(obj) {
+	const headers = new Headers();
+	for (const name of Object.keys(obj)) {
+		if (invalidTokenRegex.test(name)) {
+			continue;
+		}
+		if (Array.isArray(obj[name])) {
+			for (const val of obj[name]) {
+				if (invalidHeaderCharRegex.test(val)) {
+					continue;
+				}
+				if (headers[MAP][name] === undefined) {
+					headers[MAP][name] = [val];
+				} else {
+					headers[MAP][name].push(val);
+				}
+			}
+		} else if (!invalidHeaderCharRegex.test(obj[name])) {
+			headers[MAP][name] = [obj[name]];
+		}
+	}
+	return headers;
+}
+
+const INTERNALS$1 = Symbol('Response internals');
+
+// fix an issue where "STATUS_CODES" aren't a named export for node <10
+const STATUS_CODES = http.STATUS_CODES;
+
+/**
+ * Response class
+ *
+ * @param   Stream  body  Readable stream
+ * @param   Object  opts  Response options
+ * @return  Void
+ */
+class Response {
+	constructor() {
+		let body = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+		let opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+		Body.call(this, body, opts);
+
+		const status = opts.status || 200;
+		const headers = new Headers(opts.headers);
+
+		if (body != null && !headers.has('Content-Type')) {
+			const contentType = extractContentType(body);
+			if (contentType) {
+				headers.append('Content-Type', contentType);
+			}
+		}
+
+		this[INTERNALS$1] = {
+			url: opts.url,
+			status,
+			statusText: opts.statusText || STATUS_CODES[status],
+			headers,
+			counter: opts.counter
+		};
+	}
+
+	get url() {
+		return this[INTERNALS$1].url || '';
+	}
+
+	get status() {
+		return this[INTERNALS$1].status;
+	}
+
+	/**
+  * Convenience property representing if the request ended normally
+  */
+	get ok() {
+		return this[INTERNALS$1].status >= 200 && this[INTERNALS$1].status < 300;
+	}
+
+	get redirected() {
+		return this[INTERNALS$1].counter > 0;
+	}
+
+	get statusText() {
+		return this[INTERNALS$1].statusText;
+	}
+
+	get headers() {
+		return this[INTERNALS$1].headers;
+	}
+
+	/**
+  * Clone this response
+  *
+  * @return  Response
+  */
+	clone() {
+		return new Response(clone(this), {
+			url: this.url,
+			status: this.status,
+			statusText: this.statusText,
+			headers: this.headers,
+			ok: this.ok,
+			redirected: this.redirected
+		});
+	}
+}
+
+Body.mixIn(Response.prototype);
+
+Object.defineProperties(Response.prototype, {
+	url: { enumerable: true },
+	status: { enumerable: true },
+	ok: { enumerable: true },
+	redirected: { enumerable: true },
+	statusText: { enumerable: true },
+	headers: { enumerable: true },
+	clone: { enumerable: true }
+});
+
+Object.defineProperty(Response.prototype, Symbol.toStringTag, {
+	value: 'Response',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+const INTERNALS$2 = Symbol('Request internals');
+const URL = Url.URL || whatwgUrl.URL;
+
+// fix an issue where "format", "parse" aren't a named export for node <10
+const parse_url = Url.parse;
+const format_url = Url.format;
+
+/**
+ * Wrapper around `new URL` to handle arbitrary URLs
+ *
+ * @param  {string} urlStr
+ * @return {void}
+ */
+function parseURL(urlStr) {
+	/*
+ 	Check whether the URL is absolute or not
+ 		Scheme: https://tools.ietf.org/html/rfc3986#section-3.1
+ 	Absolute URL: https://tools.ietf.org/html/rfc3986#section-4.3
+ */
+	if (/^[a-zA-Z][a-zA-Z\d+\-.]*:/.exec(urlStr)) {
+		urlStr = new URL(urlStr).toString();
+	}
+
+	// Fallback to old implementation for arbitrary URLs
+	return parse_url(urlStr);
+}
+
+const streamDestructionSupported = 'destroy' in Stream.Readable.prototype;
+
+/**
+ * Check if a value is an instance of Request.
+ *
+ * @param   Mixed   input
+ * @return  Boolean
+ */
+function isRequest(input) {
+	return typeof input === 'object' && typeof input[INTERNALS$2] === 'object';
+}
+
+function isAbortSignal(signal) {
+	const proto = signal && typeof signal === 'object' && Object.getPrototypeOf(signal);
+	return !!(proto && proto.constructor.name === 'AbortSignal');
+}
+
+/**
+ * Request class
+ *
+ * @param   Mixed   input  Url or Request instance
+ * @param   Object  init   Custom options
+ * @return  Void
+ */
+class Request {
+	constructor(input) {
+		let init = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+		let parsedURL;
+
+		// normalize input
+		if (!isRequest(input)) {
+			if (input && input.href) {
+				// in order to support Node.js' Url objects; though WHATWG's URL objects
+				// will fall into this branch also (since their `toString()` will return
+				// `href` property anyway)
+				parsedURL = parseURL(input.href);
+			} else {
+				// coerce input to a string before attempting to parse
+				parsedURL = parseURL(`${input}`);
+			}
+			input = {};
+		} else {
+			parsedURL = parseURL(input.url);
+		}
+
+		let method = init.method || input.method || 'GET';
+		method = method.toUpperCase();
+
+		if ((init.body != null || isRequest(input) && input.body !== null) && (method === 'GET' || method === 'HEAD')) {
+			throw new TypeError('Request with GET/HEAD method cannot have body');
+		}
+
+		let inputBody = init.body != null ? init.body : isRequest(input) && input.body !== null ? clone(input) : null;
+
+		Body.call(this, inputBody, {
+			timeout: init.timeout || input.timeout || 0,
+			size: init.size || input.size || 0
+		});
+
+		const headers = new Headers(init.headers || input.headers || {});
+
+		if (inputBody != null && !headers.has('Content-Type')) {
+			const contentType = extractContentType(inputBody);
+			if (contentType) {
+				headers.append('Content-Type', contentType);
+			}
+		}
+
+		let signal = isRequest(input) ? input.signal : null;
+		if ('signal' in init) signal = init.signal;
+
+		if (signal != null && !isAbortSignal(signal)) {
+			throw new TypeError('Expected signal to be an instanceof AbortSignal');
+		}
+
+		this[INTERNALS$2] = {
+			method,
+			redirect: init.redirect || input.redirect || 'follow',
+			headers,
+			parsedURL,
+			signal
+		};
+
+		// node-fetch-only options
+		this.follow = init.follow !== undefined ? init.follow : input.follow !== undefined ? input.follow : 20;
+		this.compress = init.compress !== undefined ? init.compress : input.compress !== undefined ? input.compress : true;
+		this.counter = init.counter || input.counter || 0;
+		this.agent = init.agent || input.agent;
+	}
+
+	get method() {
+		return this[INTERNALS$2].method;
+	}
+
+	get url() {
+		return format_url(this[INTERNALS$2].parsedURL);
+	}
+
+	get headers() {
+		return this[INTERNALS$2].headers;
+	}
+
+	get redirect() {
+		return this[INTERNALS$2].redirect;
+	}
+
+	get signal() {
+		return this[INTERNALS$2].signal;
+	}
+
+	/**
+  * Clone this request
+  *
+  * @return  Request
+  */
+	clone() {
+		return new Request(this);
+	}
+}
+
+Body.mixIn(Request.prototype);
+
+Object.defineProperty(Request.prototype, Symbol.toStringTag, {
+	value: 'Request',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+Object.defineProperties(Request.prototype, {
+	method: { enumerable: true },
+	url: { enumerable: true },
+	headers: { enumerable: true },
+	redirect: { enumerable: true },
+	clone: { enumerable: true },
+	signal: { enumerable: true }
+});
+
+/**
+ * Convert a Request to Node.js http request options.
+ *
+ * @param   Request  A Request instance
+ * @return  Object   The options object to be passed to http.request
+ */
+function getNodeRequestOptions(request) {
+	const parsedURL = request[INTERNALS$2].parsedURL;
+	const headers = new Headers(request[INTERNALS$2].headers);
+
+	// fetch step 1.3
+	if (!headers.has('Accept')) {
+		headers.set('Accept', '*/*');
+	}
+
+	// Basic fetch
+	if (!parsedURL.protocol || !parsedURL.hostname) {
+		throw new TypeError('Only absolute URLs are supported');
+	}
+
+	if (!/^https?:$/.test(parsedURL.protocol)) {
+		throw new TypeError('Only HTTP(S) protocols are supported');
+	}
+
+	if (request.signal && request.body instanceof Stream.Readable && !streamDestructionSupported) {
+		throw new Error('Cancellation of streamed requests with AbortSignal is not supported in node < 8');
+	}
+
+	// HTTP-network-or-cache fetch steps 2.4-2.7
+	let contentLengthValue = null;
+	if (request.body == null && /^(POST|PUT)$/i.test(request.method)) {
+		contentLengthValue = '0';
+	}
+	if (request.body != null) {
+		const totalBytes = getTotalBytes(request);
+		if (typeof totalBytes === 'number') {
+			contentLengthValue = String(totalBytes);
+		}
+	}
+	if (contentLengthValue) {
+		headers.set('Content-Length', contentLengthValue);
+	}
+
+	// HTTP-network-or-cache fetch step 2.11
+	if (!headers.has('User-Agent')) {
+		headers.set('User-Agent', 'node-fetch/1.0 (+https://github.com/bitinn/node-fetch)');
+	}
+
+	// HTTP-network-or-cache fetch step 2.15
+	if (request.compress && !headers.has('Accept-Encoding')) {
+		headers.set('Accept-Encoding', 'gzip,deflate');
+	}
+
+	let agent = request.agent;
+	if (typeof agent === 'function') {
+		agent = agent(parsedURL);
+	}
+
+	// HTTP-network fetch step 4.2
+	// chunked encoding is handled by Node.js
+
+	return Object.assign({}, parsedURL, {
+		method: request.method,
+		headers: exportNodeCompatibleHeaders(headers),
+		agent
+	});
+}
+
+/**
+ * abort-error.js
+ *
+ * AbortError interface for cancelled requests
+ */
+
+/**
+ * Create AbortError instance
+ *
+ * @param   String      message      Error message for human
+ * @return  AbortError
+ */
+function AbortError(message) {
+  Error.call(this, message);
+
+  this.type = 'aborted';
+  this.message = message;
+
+  // hide custom error implementation details from end-users
+  Error.captureStackTrace(this, this.constructor);
+}
+
+AbortError.prototype = Object.create(Error.prototype);
+AbortError.prototype.constructor = AbortError;
+AbortError.prototype.name = 'AbortError';
+
+const URL$1 = Url.URL || whatwgUrl.URL;
+
+// fix an issue where "PassThrough", "resolve" aren't a named export for node <10
+const PassThrough$1 = Stream.PassThrough;
+
+const isDomainOrSubdomain = function isDomainOrSubdomain(destination, original) {
+	const orig = new URL$1(original).hostname;
+	const dest = new URL$1(destination).hostname;
+
+	return orig === dest || orig[orig.length - dest.length - 1] === '.' && orig.endsWith(dest);
+};
+
+/**
+ * isSameProtocol reports whether the two provided URLs use the same protocol.
+ *
+ * Both domains must already be in canonical form.
+ * @param {string|URL} original
+ * @param {string|URL} destination
+ */
+const isSameProtocol = function isSameProtocol(destination, original) {
+	const orig = new URL$1(original).protocol;
+	const dest = new URL$1(destination).protocol;
+
+	return orig === dest;
+};
+
+/**
+ * Fetch function
+ *
+ * @param   Mixed    url   Absolute url or Request instance
+ * @param   Object   opts  Fetch options
+ * @return  Promise
+ */
+function fetch(url, opts) {
+
+	// allow custom promise
+	if (!fetch.Promise) {
+		throw new Error('native promise missing, set fetch.Promise to your favorite alternative');
+	}
+
+	Body.Promise = fetch.Promise;
+
+	// wrap http.request into fetch
+	return new fetch.Promise(function (resolve, reject) {
+		// build request object
+		const request = new Request(url, opts);
+		const options = getNodeRequestOptions(request);
+
+		const send = (options.protocol === 'https:' ? https : http).request;
+		const signal = request.signal;
+
+		let response = null;
+
+		const abort = function abort() {
+			let error = new AbortError('The user aborted a request.');
+			reject(error);
+			if (request.body && request.body instanceof Stream.Readable) {
+				destroyStream(request.body, error);
+			}
+			if (!response || !response.body) return;
+			response.body.emit('error', error);
+		};
+
+		if (signal && signal.aborted) {
+			abort();
+			return;
+		}
+
+		const abortAndFinalize = function abortAndFinalize() {
+			abort();
+			finalize();
+		};
+
+		// send request
+		const req = send(options);
+		let reqTimeout;
+
+		if (signal) {
+			signal.addEventListener('abort', abortAndFinalize);
+		}
+
+		function finalize() {
+			req.abort();
+			if (signal) signal.removeEventListener('abort', abortAndFinalize);
+			clearTimeout(reqTimeout);
+		}
+
+		if (request.timeout) {
+			req.once('socket', function (socket) {
+				reqTimeout = setTimeout(function () {
+					reject(new FetchError(`network timeout at: ${request.url}`, 'request-timeout'));
+					finalize();
+				}, request.timeout);
+			});
+		}
+
+		req.on('error', function (err) {
+			reject(new FetchError(`request to ${request.url} failed, reason: ${err.message}`, 'system', err));
+
+			if (response && response.body) {
+				destroyStream(response.body, err);
+			}
+
+			finalize();
+		});
+
+		fixResponseChunkedTransferBadEnding(req, function (err) {
+			if (signal && signal.aborted) {
+				return;
+			}
+
+			if (response && response.body) {
+				destroyStream(response.body, err);
+			}
+		});
+
+		/* c8 ignore next 18 */
+		if (parseInt(process.version.substring(1)) < 14) {
+			// Before Node.js 14, pipeline() does not fully support async iterators and does not always
+			// properly handle when the socket close/end events are out of order.
+			req.on('socket', function (s) {
+				s.addListener('close', function (hadError) {
+					// if a data listener is still present we didn't end cleanly
+					const hasDataListener = s.listenerCount('data') > 0;
+
+					// if end happened before close but the socket didn't emit an error, do it now
+					if (response && hasDataListener && !hadError && !(signal && signal.aborted)) {
+						const err = new Error('Premature close');
+						err.code = 'ERR_STREAM_PREMATURE_CLOSE';
+						response.body.emit('error', err);
+					}
+				});
+			});
+		}
+
+		req.on('response', function (res) {
+			clearTimeout(reqTimeout);
+
+			const headers = createHeadersLenient(res.headers);
+
+			// HTTP fetch step 5
+			if (fetch.isRedirect(res.statusCode)) {
+				// HTTP fetch step 5.2
+				const location = headers.get('Location');
+
+				// HTTP fetch step 5.3
+				let locationURL = null;
+				try {
+					locationURL = location === null ? null : new URL$1(location, request.url).toString();
+				} catch (err) {
+					// error here can only be invalid URL in Location: header
+					// do not throw when options.redirect == manual
+					// let the user extract the errorneous redirect URL
+					if (request.redirect !== 'manual') {
+						reject(new FetchError(`uri requested responds with an invalid redirect URL: ${location}`, 'invalid-redirect'));
+						finalize();
+						return;
+					}
+				}
+
+				// HTTP fetch step 5.5
+				switch (request.redirect) {
+					case 'error':
+						reject(new FetchError(`uri requested responds with a redirect, redirect mode is set to error: ${request.url}`, 'no-redirect'));
+						finalize();
+						return;
+					case 'manual':
+						// node-fetch-specific step: make manual redirect a bit easier to use by setting the Location header value to the resolved URL.
+						if (locationURL !== null) {
+							// handle corrupted header
+							try {
+								headers.set('Location', locationURL);
+							} catch (err) {
+								// istanbul ignore next: nodejs server prevent invalid response headers, we can't test this through normal request
+								reject(err);
+							}
+						}
+						break;
+					case 'follow':
+						// HTTP-redirect fetch step 2
+						if (locationURL === null) {
+							break;
+						}
+
+						// HTTP-redirect fetch step 5
+						if (request.counter >= request.follow) {
+							reject(new FetchError(`maximum redirect reached at: ${request.url}`, 'max-redirect'));
+							finalize();
+							return;
+						}
+
+						// HTTP-redirect fetch step 6 (counter increment)
+						// Create a new Request object.
+						const requestOpts = {
+							headers: new Headers(request.headers),
+							follow: request.follow,
+							counter: request.counter + 1,
+							agent: request.agent,
+							compress: request.compress,
+							method: request.method,
+							body: request.body,
+							signal: request.signal,
+							timeout: request.timeout,
+							size: request.size
+						};
+
+						if (!isDomainOrSubdomain(request.url, locationURL) || !isSameProtocol(request.url, locationURL)) {
+							for (const name of ['authorization', 'www-authenticate', 'cookie', 'cookie2']) {
+								requestOpts.headers.delete(name);
+							}
+						}
+
+						// HTTP-redirect fetch step 9
+						if (res.statusCode !== 303 && request.body && getTotalBytes(request) === null) {
+							reject(new FetchError('Cannot follow redirect with body being a readable stream', 'unsupported-redirect'));
+							finalize();
+							return;
+						}
+
+						// HTTP-redirect fetch step 11
+						if (res.statusCode === 303 || (res.statusCode === 301 || res.statusCode === 302) && request.method === 'POST') {
+							requestOpts.method = 'GET';
+							requestOpts.body = undefined;
+							requestOpts.headers.delete('content-length');
+						}
+
+						// HTTP-redirect fetch step 15
+						resolve(fetch(new Request(locationURL, requestOpts)));
+						finalize();
+						return;
+				}
+			}
+
+			// prepare response
+			res.once('end', function () {
+				if (signal) signal.removeEventListener('abort', abortAndFinalize);
+			});
+			let body = res.pipe(new PassThrough$1());
+
+			const response_options = {
+				url: request.url,
+				status: res.statusCode,
+				statusText: res.statusMessage,
+				headers: headers,
+				size: request.size,
+				timeout: request.timeout,
+				counter: request.counter
+			};
+
+			// HTTP-network fetch step 12.1.1.3
+			const codings = headers.get('Content-Encoding');
+
+			// HTTP-network fetch step 12.1.1.4: handle content codings
+
+			// in following scenarios we ignore compression support
+			// 1. compression support is disabled
+			// 2. HEAD request
+			// 3. no Content-Encoding header
+			// 4. no content response (204)
+			// 5. content not modified response (304)
+			if (!request.compress || request.method === 'HEAD' || codings === null || res.statusCode === 204 || res.statusCode === 304) {
+				response = new Response(body, response_options);
+				resolve(response);
+				return;
+			}
+
+			// For Node v6+
+			// Be less strict when decoding compressed responses, since sometimes
+			// servers send slightly invalid responses that are still accepted
+			// by common browsers.
+			// Always using Z_SYNC_FLUSH is what cURL does.
+			const zlibOptions = {
+				flush: zlib.Z_SYNC_FLUSH,
+				finishFlush: zlib.Z_SYNC_FLUSH
+			};
+
+			// for gzip
+			if (codings == 'gzip' || codings == 'x-gzip') {
+				body = body.pipe(zlib.createGunzip(zlibOptions));
+				response = new Response(body, response_options);
+				resolve(response);
+				return;
+			}
+
+			// for deflate
+			if (codings == 'deflate' || codings == 'x-deflate') {
+				// handle the infamous raw deflate response from old servers
+				// a hack for old IIS and Apache servers
+				const raw = res.pipe(new PassThrough$1());
+				raw.once('data', function (chunk) {
+					// see http://stackoverflow.com/questions/37519828
+					if ((chunk[0] & 0x0F) === 0x08) {
+						body = body.pipe(zlib.createInflate());
+					} else {
+						body = body.pipe(zlib.createInflateRaw());
+					}
+					response = new Response(body, response_options);
+					resolve(response);
+				});
+				raw.on('end', function () {
+					// some old IIS servers return zero-length OK deflate responses, so 'data' is never emitted.
+					if (!response) {
+						response = new Response(body, response_options);
+						resolve(response);
+					}
+				});
+				return;
+			}
+
+			// for br
+			if (codings == 'br' && typeof zlib.createBrotliDecompress === 'function') {
+				body = body.pipe(zlib.createBrotliDecompress());
+				response = new Response(body, response_options);
+				resolve(response);
+				return;
+			}
+
+			// otherwise, use response as-is
+			response = new Response(body, response_options);
+			resolve(response);
+		});
+
+		writeToStream(req, request);
+	});
+}
+function fixResponseChunkedTransferBadEnding(request, errorCallback) {
+	let socket;
+
+	request.on('socket', function (s) {
+		socket = s;
+	});
+
+	request.on('response', function (response) {
+		const headers = response.headers;
+
+		if (headers['transfer-encoding'] === 'chunked' && !headers['content-length']) {
+			response.once('close', function (hadError) {
+				// tests for socket presence, as in some situations the
+				// the 'socket' event is not triggered for the request
+				// (happens in deno), avoids `TypeError`
+				// if a data listener is still present we didn't end cleanly
+				const hasDataListener = socket && socket.listenerCount('data') > 0;
+
+				if (hasDataListener && !hadError) {
+					const err = new Error('Premature close');
+					err.code = 'ERR_STREAM_PREMATURE_CLOSE';
+					errorCallback(err);
+				}
+			});
+		}
+	});
+}
+
+function destroyStream(stream, err) {
+	if (stream.destroy) {
+		stream.destroy(err);
+	} else {
+		// node < 8
+		stream.emit('error', err);
+		stream.end();
+	}
+}
+
+/**
+ * Redirect code matching
+ *
+ * @param   Number   code  Status code
+ * @return  Boolean
+ */
+fetch.isRedirect = function (code) {
+	return code === 301 || code === 302 || code === 303 || code === 307 || code === 308;
+};
+
+// expose Promise
+fetch.Promise = global.Promise;
+
+export default fetch;
+export { Headers, Request, Response, FetchError, AbortError };
diff --git a/node_modules/node-fetch/lib/index.js b/node_modules/node-fetch/lib/index.js
new file mode 100644
index 0000000..567ff5d
--- /dev/null
+++ b/node_modules/node-fetch/lib/index.js
@@ -0,0 +1,1787 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
+
+var Stream = _interopDefault(require('stream'));
+var http = _interopDefault(require('http'));
+var Url = _interopDefault(require('url'));
+var whatwgUrl = _interopDefault(require('whatwg-url'));
+var https = _interopDefault(require('https'));
+var zlib = _interopDefault(require('zlib'));
+
+// Based on https://github.com/tmpvar/jsdom/blob/aa85b2abf07766ff7bf5c1f6daafb3726f2f2db5/lib/jsdom/living/blob.js
+
+// fix for "Readable" isn't a named export issue
+const Readable = Stream.Readable;
+
+const BUFFER = Symbol('buffer');
+const TYPE = Symbol('type');
+
+class Blob {
+	constructor() {
+		this[TYPE] = '';
+
+		const blobParts = arguments[0];
+		const options = arguments[1];
+
+		const buffers = [];
+		let size = 0;
+
+		if (blobParts) {
+			const a = blobParts;
+			const length = Number(a.length);
+			for (let i = 0; i < length; i++) {
+				const element = a[i];
+				let buffer;
+				if (element instanceof Buffer) {
+					buffer = element;
+				} else if (ArrayBuffer.isView(element)) {
+					buffer = Buffer.from(element.buffer, element.byteOffset, element.byteLength);
+				} else if (element instanceof ArrayBuffer) {
+					buffer = Buffer.from(element);
+				} else if (element instanceof Blob) {
+					buffer = element[BUFFER];
+				} else {
+					buffer = Buffer.from(typeof element === 'string' ? element : String(element));
+				}
+				size += buffer.length;
+				buffers.push(buffer);
+			}
+		}
+
+		this[BUFFER] = Buffer.concat(buffers);
+
+		let type = options && options.type !== undefined && String(options.type).toLowerCase();
+		if (type && !/[^\u0020-\u007E]/.test(type)) {
+			this[TYPE] = type;
+		}
+	}
+	get size() {
+		return this[BUFFER].length;
+	}
+	get type() {
+		return this[TYPE];
+	}
+	text() {
+		return Promise.resolve(this[BUFFER].toString());
+	}
+	arrayBuffer() {
+		const buf = this[BUFFER];
+		const ab = buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
+		return Promise.resolve(ab);
+	}
+	stream() {
+		const readable = new Readable();
+		readable._read = function () {};
+		readable.push(this[BUFFER]);
+		readable.push(null);
+		return readable;
+	}
+	toString() {
+		return '[object Blob]';
+	}
+	slice() {
+		const size = this.size;
+
+		const start = arguments[0];
+		const end = arguments[1];
+		let relativeStart, relativeEnd;
+		if (start === undefined) {
+			relativeStart = 0;
+		} else if (start < 0) {
+			relativeStart = Math.max(size + start, 0);
+		} else {
+			relativeStart = Math.min(start, size);
+		}
+		if (end === undefined) {
+			relativeEnd = size;
+		} else if (end < 0) {
+			relativeEnd = Math.max(size + end, 0);
+		} else {
+			relativeEnd = Math.min(end, size);
+		}
+		const span = Math.max(relativeEnd - relativeStart, 0);
+
+		const buffer = this[BUFFER];
+		const slicedBuffer = buffer.slice(relativeStart, relativeStart + span);
+		const blob = new Blob([], { type: arguments[2] });
+		blob[BUFFER] = slicedBuffer;
+		return blob;
+	}
+}
+
+Object.defineProperties(Blob.prototype, {
+	size: { enumerable: true },
+	type: { enumerable: true },
+	slice: { enumerable: true }
+});
+
+Object.defineProperty(Blob.prototype, Symbol.toStringTag, {
+	value: 'Blob',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+/**
+ * fetch-error.js
+ *
+ * FetchError interface for operational errors
+ */
+
+/**
+ * Create FetchError instance
+ *
+ * @param   String      message      Error message for human
+ * @param   String      type         Error type for machine
+ * @param   String      systemError  For Node.js system error
+ * @return  FetchError
+ */
+function FetchError(message, type, systemError) {
+  Error.call(this, message);
+
+  this.message = message;
+  this.type = type;
+
+  // when err.type is `system`, err.code contains system error code
+  if (systemError) {
+    this.code = this.errno = systemError.code;
+  }
+
+  // hide custom error implementation details from end-users
+  Error.captureStackTrace(this, this.constructor);
+}
+
+FetchError.prototype = Object.create(Error.prototype);
+FetchError.prototype.constructor = FetchError;
+FetchError.prototype.name = 'FetchError';
+
+let convert;
+try {
+	convert = require('encoding').convert;
+} catch (e) {}
+
+const INTERNALS = Symbol('Body internals');
+
+// fix an issue where "PassThrough" isn't a named export for node <10
+const PassThrough = Stream.PassThrough;
+
+/**
+ * Body mixin
+ *
+ * Ref: https://fetch.spec.whatwg.org/#body
+ *
+ * @param   Stream  body  Readable stream
+ * @param   Object  opts  Response options
+ * @return  Void
+ */
+function Body(body) {
+	var _this = this;
+
+	var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
+	    _ref$size = _ref.size;
+
+	let size = _ref$size === undefined ? 0 : _ref$size;
+	var _ref$timeout = _ref.timeout;
+	let timeout = _ref$timeout === undefined ? 0 : _ref$timeout;
+
+	if (body == null) {
+		// body is undefined or null
+		body = null;
+	} else if (isURLSearchParams(body)) {
+		// body is a URLSearchParams
+		body = Buffer.from(body.toString());
+	} else if (isBlob(body)) ; else if (Buffer.isBuffer(body)) ; else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
+		// body is ArrayBuffer
+		body = Buffer.from(body);
+	} else if (ArrayBuffer.isView(body)) {
+		// body is ArrayBufferView
+		body = Buffer.from(body.buffer, body.byteOffset, body.byteLength);
+	} else if (body instanceof Stream) ; else {
+		// none of the above
+		// coerce to string then buffer
+		body = Buffer.from(String(body));
+	}
+	this[INTERNALS] = {
+		body,
+		disturbed: false,
+		error: null
+	};
+	this.size = size;
+	this.timeout = timeout;
+
+	if (body instanceof Stream) {
+		body.on('error', function (err) {
+			const error = err.name === 'AbortError' ? err : new FetchError(`Invalid response body while trying to fetch ${_this.url}: ${err.message}`, 'system', err);
+			_this[INTERNALS].error = error;
+		});
+	}
+}
+
+Body.prototype = {
+	get body() {
+		return this[INTERNALS].body;
+	},
+
+	get bodyUsed() {
+		return this[INTERNALS].disturbed;
+	},
+
+	/**
+  * Decode response as ArrayBuffer
+  *
+  * @return  Promise
+  */
+	arrayBuffer() {
+		return consumeBody.call(this).then(function (buf) {
+			return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
+		});
+	},
+
+	/**
+  * Return raw response as Blob
+  *
+  * @return Promise
+  */
+	blob() {
+		let ct = this.headers && this.headers.get('content-type') || '';
+		return consumeBody.call(this).then(function (buf) {
+			return Object.assign(
+			// Prevent copying
+			new Blob([], {
+				type: ct.toLowerCase()
+			}), {
+				[BUFFER]: buf
+			});
+		});
+	},
+
+	/**
+  * Decode response as json
+  *
+  * @return  Promise
+  */
+	json() {
+		var _this2 = this;
+
+		return consumeBody.call(this).then(function (buffer) {
+			try {
+				return JSON.parse(buffer.toString());
+			} catch (err) {
+				return Body.Promise.reject(new FetchError(`invalid json response body at ${_this2.url} reason: ${err.message}`, 'invalid-json'));
+			}
+		});
+	},
+
+	/**
+  * Decode response as text
+  *
+  * @return  Promise
+  */
+	text() {
+		return consumeBody.call(this).then(function (buffer) {
+			return buffer.toString();
+		});
+	},
+
+	/**
+  * Decode response as buffer (non-spec api)
+  *
+  * @return  Promise
+  */
+	buffer() {
+		return consumeBody.call(this);
+	},
+
+	/**
+  * Decode response as text, while automatically detecting the encoding and
+  * trying to decode to UTF-8 (non-spec api)
+  *
+  * @return  Promise
+  */
+	textConverted() {
+		var _this3 = this;
+
+		return consumeBody.call(this).then(function (buffer) {
+			return convertBody(buffer, _this3.headers);
+		});
+	}
+};
+
+// In browsers, all properties are enumerable.
+Object.defineProperties(Body.prototype, {
+	body: { enumerable: true },
+	bodyUsed: { enumerable: true },
+	arrayBuffer: { enumerable: true },
+	blob: { enumerable: true },
+	json: { enumerable: true },
+	text: { enumerable: true }
+});
+
+Body.mixIn = function (proto) {
+	for (const name of Object.getOwnPropertyNames(Body.prototype)) {
+		// istanbul ignore else: future proof
+		if (!(name in proto)) {
+			const desc = Object.getOwnPropertyDescriptor(Body.prototype, name);
+			Object.defineProperty(proto, name, desc);
+		}
+	}
+};
+
+/**
+ * Consume and convert an entire Body to a Buffer.
+ *
+ * Ref: https://fetch.spec.whatwg.org/#concept-body-consume-body
+ *
+ * @return  Promise
+ */
+function consumeBody() {
+	var _this4 = this;
+
+	if (this[INTERNALS].disturbed) {
+		return Body.Promise.reject(new TypeError(`body used already for: ${this.url}`));
+	}
+
+	this[INTERNALS].disturbed = true;
+
+	if (this[INTERNALS].error) {
+		return Body.Promise.reject(this[INTERNALS].error);
+	}
+
+	let body = this.body;
+
+	// body is null
+	if (body === null) {
+		return Body.Promise.resolve(Buffer.alloc(0));
+	}
+
+	// body is blob
+	if (isBlob(body)) {
+		body = body.stream();
+	}
+
+	// body is buffer
+	if (Buffer.isBuffer(body)) {
+		return Body.Promise.resolve(body);
+	}
+
+	// istanbul ignore if: should never happen
+	if (!(body instanceof Stream)) {
+		return Body.Promise.resolve(Buffer.alloc(0));
+	}
+
+	// body is stream
+	// get ready to actually consume the body
+	let accum = [];
+	let accumBytes = 0;
+	let abort = false;
+
+	return new Body.Promise(function (resolve, reject) {
+		let resTimeout;
+
+		// allow timeout on slow response body
+		if (_this4.timeout) {
+			resTimeout = setTimeout(function () {
+				abort = true;
+				reject(new FetchError(`Response timeout while trying to fetch ${_this4.url} (over ${_this4.timeout}ms)`, 'body-timeout'));
+			}, _this4.timeout);
+		}
+
+		// handle stream errors
+		body.on('error', function (err) {
+			if (err.name === 'AbortError') {
+				// if the request was aborted, reject with this Error
+				abort = true;
+				reject(err);
+			} else {
+				// other errors, such as incorrect content-encoding
+				reject(new FetchError(`Invalid response body while trying to fetch ${_this4.url}: ${err.message}`, 'system', err));
+			}
+		});
+
+		body.on('data', function (chunk) {
+			if (abort || chunk === null) {
+				return;
+			}
+
+			if (_this4.size && accumBytes + chunk.length > _this4.size) {
+				abort = true;
+				reject(new FetchError(`content size at ${_this4.url} over limit: ${_this4.size}`, 'max-size'));
+				return;
+			}
+
+			accumBytes += chunk.length;
+			accum.push(chunk);
+		});
+
+		body.on('end', function () {
+			if (abort) {
+				return;
+			}
+
+			clearTimeout(resTimeout);
+
+			try {
+				resolve(Buffer.concat(accum, accumBytes));
+			} catch (err) {
+				// handle streams that have accumulated too much data (issue #414)
+				reject(new FetchError(`Could not create Buffer from response body for ${_this4.url}: ${err.message}`, 'system', err));
+			}
+		});
+	});
+}
+
+/**
+ * Detect buffer encoding and convert to target encoding
+ * ref: http://www.w3.org/TR/2011/WD-html5-20110113/parsing.html#determining-the-character-encoding
+ *
+ * @param   Buffer  buffer    Incoming buffer
+ * @param   String  encoding  Target encoding
+ * @return  String
+ */
+function convertBody(buffer, headers) {
+	if (typeof convert !== 'function') {
+		throw new Error('The package `encoding` must be installed to use the textConverted() function');
+	}
+
+	const ct = headers.get('content-type');
+	let charset = 'utf-8';
+	let res, str;
+
+	// header
+	if (ct) {
+		res = /charset=([^;]*)/i.exec(ct);
+	}
+
+	// no charset in content type, peek at response body for at most 1024 bytes
+	str = buffer.slice(0, 1024).toString();
+
+	// html5
+	if (!res && str) {
+		res = /<meta.+?charset=(['"])(.+?)\1/i.exec(str);
+	}
+
+	// html4
+	if (!res && str) {
+		res = /<meta[\s]+?http-equiv=(['"])content-type\1[\s]+?content=(['"])(.+?)\2/i.exec(str);
+		if (!res) {
+			res = /<meta[\s]+?content=(['"])(.+?)\1[\s]+?http-equiv=(['"])content-type\3/i.exec(str);
+			if (res) {
+				res.pop(); // drop last quote
+			}
+		}
+
+		if (res) {
+			res = /charset=(.*)/i.exec(res.pop());
+		}
+	}
+
+	// xml
+	if (!res && str) {
+		res = /<\?xml.+?encoding=(['"])(.+?)\1/i.exec(str);
+	}
+
+	// found charset
+	if (res) {
+		charset = res.pop();
+
+		// prevent decode issues when sites use incorrect encoding
+		// ref: https://hsivonen.fi/encoding-menu/
+		if (charset === 'gb2312' || charset === 'gbk') {
+			charset = 'gb18030';
+		}
+	}
+
+	// turn raw buffers into a single utf-8 buffer
+	return convert(buffer, 'UTF-8', charset).toString();
+}
+
+/**
+ * Detect a URLSearchParams object
+ * ref: https://github.com/bitinn/node-fetch/issues/296#issuecomment-307598143
+ *
+ * @param   Object  obj     Object to detect by type or brand
+ * @return  String
+ */
+function isURLSearchParams(obj) {
+	// Duck-typing as a necessary condition.
+	if (typeof obj !== 'object' || typeof obj.append !== 'function' || typeof obj.delete !== 'function' || typeof obj.get !== 'function' || typeof obj.getAll !== 'function' || typeof obj.has !== 'function' || typeof obj.set !== 'function') {
+		return false;
+	}
+
+	// Brand-checking and more duck-typing as optional condition.
+	return obj.constructor.name === 'URLSearchParams' || Object.prototype.toString.call(obj) === '[object URLSearchParams]' || typeof obj.sort === 'function';
+}
+
+/**
+ * Check if `obj` is a W3C `Blob` object (which `File` inherits from)
+ * @param  {*} obj
+ * @return {boolean}
+ */
+function isBlob(obj) {
+	return typeof obj === 'object' && typeof obj.arrayBuffer === 'function' && typeof obj.type === 'string' && typeof obj.stream === 'function' && typeof obj.constructor === 'function' && typeof obj.constructor.name === 'string' && /^(Blob|File)$/.test(obj.constructor.name) && /^(Blob|File)$/.test(obj[Symbol.toStringTag]);
+}
+
+/**
+ * Clone body given Res/Req instance
+ *
+ * @param   Mixed  instance  Response or Request instance
+ * @return  Mixed
+ */
+function clone(instance) {
+	let p1, p2;
+	let body = instance.body;
+
+	// don't allow cloning a used body
+	if (instance.bodyUsed) {
+		throw new Error('cannot clone body after it is used');
+	}
+
+	// check that body is a stream and not form-data object
+	// note: we can't clone the form-data object without having it as a dependency
+	if (body instanceof Stream && typeof body.getBoundary !== 'function') {
+		// tee instance body
+		p1 = new PassThrough();
+		p2 = new PassThrough();
+		body.pipe(p1);
+		body.pipe(p2);
+		// set instance body to teed body and return the other teed body
+		instance[INTERNALS].body = p1;
+		body = p2;
+	}
+
+	return body;
+}
+
+/**
+ * Performs the operation "extract a `Content-Type` value from |object|" as
+ * specified in the specification:
+ * https://fetch.spec.whatwg.org/#concept-bodyinit-extract
+ *
+ * This function assumes that instance.body is present.
+ *
+ * @param   Mixed  instance  Any options.body input
+ */
+function extractContentType(body) {
+	if (body === null) {
+		// body is null
+		return null;
+	} else if (typeof body === 'string') {
+		// body is string
+		return 'text/plain;charset=UTF-8';
+	} else if (isURLSearchParams(body)) {
+		// body is a URLSearchParams
+		return 'application/x-www-form-urlencoded;charset=UTF-8';
+	} else if (isBlob(body)) {
+		// body is blob
+		return body.type || null;
+	} else if (Buffer.isBuffer(body)) {
+		// body is buffer
+		return null;
+	} else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
+		// body is ArrayBuffer
+		return null;
+	} else if (ArrayBuffer.isView(body)) {
+		// body is ArrayBufferView
+		return null;
+	} else if (typeof body.getBoundary === 'function') {
+		// detect form data input from form-data module
+		return `multipart/form-data;boundary=${body.getBoundary()}`;
+	} else if (body instanceof Stream) {
+		// body is stream
+		// can't really do much about this
+		return null;
+	} else {
+		// Body constructor defaults other things to string
+		return 'text/plain;charset=UTF-8';
+	}
+}
+
+/**
+ * The Fetch Standard treats this as if "total bytes" is a property on the body.
+ * For us, we have to explicitly get it with a function.
+ *
+ * ref: https://fetch.spec.whatwg.org/#concept-body-total-bytes
+ *
+ * @param   Body    instance   Instance of Body
+ * @return  Number?            Number of bytes, or null if not possible
+ */
+function getTotalBytes(instance) {
+	const body = instance.body;
+
+
+	if (body === null) {
+		// body is null
+		return 0;
+	} else if (isBlob(body)) {
+		return body.size;
+	} else if (Buffer.isBuffer(body)) {
+		// body is buffer
+		return body.length;
+	} else if (body && typeof body.getLengthSync === 'function') {
+		// detect form data input from form-data module
+		if (body._lengthRetrievers && body._lengthRetrievers.length == 0 || // 1.x
+		body.hasKnownLength && body.hasKnownLength()) {
+			// 2.x
+			return body.getLengthSync();
+		}
+		return null;
+	} else {
+		// body is stream
+		return null;
+	}
+}
+
+/**
+ * Write a Body to a Node.js WritableStream (e.g. http.Request) object.
+ *
+ * @param   Body    instance   Instance of Body
+ * @return  Void
+ */
+function writeToStream(dest, instance) {
+	const body = instance.body;
+
+
+	if (body === null) {
+		// body is null
+		dest.end();
+	} else if (isBlob(body)) {
+		body.stream().pipe(dest);
+	} else if (Buffer.isBuffer(body)) {
+		// body is buffer
+		dest.write(body);
+		dest.end();
+	} else {
+		// body is stream
+		body.pipe(dest);
+	}
+}
+
+// expose Promise
+Body.Promise = global.Promise;
+
+/**
+ * headers.js
+ *
+ * Headers class offers convenient helpers
+ */
+
+const invalidTokenRegex = /[^\^_`a-zA-Z\-0-9!#$%&'*+.|~]/;
+const invalidHeaderCharRegex = /[^\t\x20-\x7e\x80-\xff]/;
+
+function validateName(name) {
+	name = `${name}`;
+	if (invalidTokenRegex.test(name) || name === '') {
+		throw new TypeError(`${name} is not a legal HTTP header name`);
+	}
+}
+
+function validateValue(value) {
+	value = `${value}`;
+	if (invalidHeaderCharRegex.test(value)) {
+		throw new TypeError(`${value} is not a legal HTTP header value`);
+	}
+}
+
+/**
+ * Find the key in the map object given a header name.
+ *
+ * Returns undefined if not found.
+ *
+ * @param   String  name  Header name
+ * @return  String|Undefined
+ */
+function find(map, name) {
+	name = name.toLowerCase();
+	for (const key in map) {
+		if (key.toLowerCase() === name) {
+			return key;
+		}
+	}
+	return undefined;
+}
+
+const MAP = Symbol('map');
+class Headers {
+	/**
+  * Headers class
+  *
+  * @param   Object  headers  Response headers
+  * @return  Void
+  */
+	constructor() {
+		let init = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : undefined;
+
+		this[MAP] = Object.create(null);
+
+		if (init instanceof Headers) {
+			const rawHeaders = init.raw();
+			const headerNames = Object.keys(rawHeaders);
+
+			for (const headerName of headerNames) {
+				for (const value of rawHeaders[headerName]) {
+					this.append(headerName, value);
+				}
+			}
+
+			return;
+		}
+
+		// We don't worry about converting prop to ByteString here as append()
+		// will handle it.
+		if (init == null) ; else if (typeof init === 'object') {
+			const method = init[Symbol.iterator];
+			if (method != null) {
+				if (typeof method !== 'function') {
+					throw new TypeError('Header pairs must be iterable');
+				}
+
+				// sequence<sequence<ByteString>>
+				// Note: per spec we have to first exhaust the lists then process them
+				const pairs = [];
+				for (const pair of init) {
+					if (typeof pair !== 'object' || typeof pair[Symbol.iterator] !== 'function') {
+						throw new TypeError('Each header pair must be iterable');
+					}
+					pairs.push(Array.from(pair));
+				}
+
+				for (const pair of pairs) {
+					if (pair.length !== 2) {
+						throw new TypeError('Each header pair must be a name/value tuple');
+					}
+					this.append(pair[0], pair[1]);
+				}
+			} else {
+				// record<ByteString, ByteString>
+				for (const key of Object.keys(init)) {
+					const value = init[key];
+					this.append(key, value);
+				}
+			}
+		} else {
+			throw new TypeError('Provided initializer must be an object');
+		}
+	}
+
+	/**
+  * Return combined header value given name
+  *
+  * @param   String  name  Header name
+  * @return  Mixed
+  */
+	get(name) {
+		name = `${name}`;
+		validateName(name);
+		const key = find(this[MAP], name);
+		if (key === undefined) {
+			return null;
+		}
+
+		return this[MAP][key].join(', ');
+	}
+
+	/**
+  * Iterate over all headers
+  *
+  * @param   Function  callback  Executed for each item with parameters (value, name, thisArg)
+  * @param   Boolean   thisArg   `this` context for callback function
+  * @return  Void
+  */
+	forEach(callback) {
+		let thisArg = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : undefined;
+
+		let pairs = getHeaders(this);
+		let i = 0;
+		while (i < pairs.length) {
+			var _pairs$i = pairs[i];
+			const name = _pairs$i[0],
+			      value = _pairs$i[1];
+
+			callback.call(thisArg, value, name, this);
+			pairs = getHeaders(this);
+			i++;
+		}
+	}
+
+	/**
+  * Overwrite header values given name
+  *
+  * @param   String  name   Header name
+  * @param   String  value  Header value
+  * @return  Void
+  */
+	set(name, value) {
+		name = `${name}`;
+		value = `${value}`;
+		validateName(name);
+		validateValue(value);
+		const key = find(this[MAP], name);
+		this[MAP][key !== undefined ? key : name] = [value];
+	}
+
+	/**
+  * Append a value onto existing header
+  *
+  * @param   String  name   Header name
+  * @param   String  value  Header value
+  * @return  Void
+  */
+	append(name, value) {
+		name = `${name}`;
+		value = `${value}`;
+		validateName(name);
+		validateValue(value);
+		const key = find(this[MAP], name);
+		if (key !== undefined) {
+			this[MAP][key].push(value);
+		} else {
+			this[MAP][name] = [value];
+		}
+	}
+
+	/**
+  * Check for header name existence
+  *
+  * @param   String   name  Header name
+  * @return  Boolean
+  */
+	has(name) {
+		name = `${name}`;
+		validateName(name);
+		return find(this[MAP], name) !== undefined;
+	}
+
+	/**
+  * Delete all header values given name
+  *
+  * @param   String  name  Header name
+  * @return  Void
+  */
+	delete(name) {
+		name = `${name}`;
+		validateName(name);
+		const key = find(this[MAP], name);
+		if (key !== undefined) {
+			delete this[MAP][key];
+		}
+	}
+
+	/**
+  * Return raw headers (non-spec api)
+  *
+  * @return  Object
+  */
+	raw() {
+		return this[MAP];
+	}
+
+	/**
+  * Get an iterator on keys.
+  *
+  * @return  Iterator
+  */
+	keys() {
+		return createHeadersIterator(this, 'key');
+	}
+
+	/**
+  * Get an iterator on values.
+  *
+  * @return  Iterator
+  */
+	values() {
+		return createHeadersIterator(this, 'value');
+	}
+
+	/**
+  * Get an iterator on entries.
+  *
+  * This is the default iterator of the Headers object.
+  *
+  * @return  Iterator
+  */
+	[Symbol.iterator]() {
+		return createHeadersIterator(this, 'key+value');
+	}
+}
+Headers.prototype.entries = Headers.prototype[Symbol.iterator];
+
+Object.defineProperty(Headers.prototype, Symbol.toStringTag, {
+	value: 'Headers',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+Object.defineProperties(Headers.prototype, {
+	get: { enumerable: true },
+	forEach: { enumerable: true },
+	set: { enumerable: true },
+	append: { enumerable: true },
+	has: { enumerable: true },
+	delete: { enumerable: true },
+	keys: { enumerable: true },
+	values: { enumerable: true },
+	entries: { enumerable: true }
+});
+
+function getHeaders(headers) {
+	let kind = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'key+value';
+
+	const keys = Object.keys(headers[MAP]).sort();
+	return keys.map(kind === 'key' ? function (k) {
+		return k.toLowerCase();
+	} : kind === 'value' ? function (k) {
+		return headers[MAP][k].join(', ');
+	} : function (k) {
+		return [k.toLowerCase(), headers[MAP][k].join(', ')];
+	});
+}
+
+const INTERNAL = Symbol('internal');
+
+function createHeadersIterator(target, kind) {
+	const iterator = Object.create(HeadersIteratorPrototype);
+	iterator[INTERNAL] = {
+		target,
+		kind,
+		index: 0
+	};
+	return iterator;
+}
+
+const HeadersIteratorPrototype = Object.setPrototypeOf({
+	next() {
+		// istanbul ignore if
+		if (!this || Object.getPrototypeOf(this) !== HeadersIteratorPrototype) {
+			throw new TypeError('Value of `this` is not a HeadersIterator');
+		}
+
+		var _INTERNAL = this[INTERNAL];
+		const target = _INTERNAL.target,
+		      kind = _INTERNAL.kind,
+		      index = _INTERNAL.index;
+
+		const values = getHeaders(target, kind);
+		const len = values.length;
+		if (index >= len) {
+			return {
+				value: undefined,
+				done: true
+			};
+		}
+
+		this[INTERNAL].index = index + 1;
+
+		return {
+			value: values[index],
+			done: false
+		};
+	}
+}, Object.getPrototypeOf(Object.getPrototypeOf([][Symbol.iterator]())));
+
+Object.defineProperty(HeadersIteratorPrototype, Symbol.toStringTag, {
+	value: 'HeadersIterator',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+/**
+ * Export the Headers object in a form that Node.js can consume.
+ *
+ * @param   Headers  headers
+ * @return  Object
+ */
+function exportNodeCompatibleHeaders(headers) {
+	const obj = Object.assign({ __proto__: null }, headers[MAP]);
+
+	// http.request() only supports string as Host header. This hack makes
+	// specifying custom Host header possible.
+	const hostHeaderKey = find(headers[MAP], 'Host');
+	if (hostHeaderKey !== undefined) {
+		obj[hostHeaderKey] = obj[hostHeaderKey][0];
+	}
+
+	return obj;
+}
+
+/**
+ * Create a Headers object from an object of headers, ignoring those that do
+ * not conform to HTTP grammar productions.
+ *
+ * @param   Object  obj  Object of headers
+ * @return  Headers
+ */
+function createHeadersLenient(obj) {
+	const headers = new Headers();
+	for (const name of Object.keys(obj)) {
+		if (invalidTokenRegex.test(name)) {
+			continue;
+		}
+		if (Array.isArray(obj[name])) {
+			for (const val of obj[name]) {
+				if (invalidHeaderCharRegex.test(val)) {
+					continue;
+				}
+				if (headers[MAP][name] === undefined) {
+					headers[MAP][name] = [val];
+				} else {
+					headers[MAP][name].push(val);
+				}
+			}
+		} else if (!invalidHeaderCharRegex.test(obj[name])) {
+			headers[MAP][name] = [obj[name]];
+		}
+	}
+	return headers;
+}
+
+const INTERNALS$1 = Symbol('Response internals');
+
+// fix an issue where "STATUS_CODES" aren't a named export for node <10
+const STATUS_CODES = http.STATUS_CODES;
+
+/**
+ * Response class
+ *
+ * @param   Stream  body  Readable stream
+ * @param   Object  opts  Response options
+ * @return  Void
+ */
+class Response {
+	constructor() {
+		let body = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+		let opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+		Body.call(this, body, opts);
+
+		const status = opts.status || 200;
+		const headers = new Headers(opts.headers);
+
+		if (body != null && !headers.has('Content-Type')) {
+			const contentType = extractContentType(body);
+			if (contentType) {
+				headers.append('Content-Type', contentType);
+			}
+		}
+
+		this[INTERNALS$1] = {
+			url: opts.url,
+			status,
+			statusText: opts.statusText || STATUS_CODES[status],
+			headers,
+			counter: opts.counter
+		};
+	}
+
+	get url() {
+		return this[INTERNALS$1].url || '';
+	}
+
+	get status() {
+		return this[INTERNALS$1].status;
+	}
+
+	/**
+  * Convenience property representing if the request ended normally
+  */
+	get ok() {
+		return this[INTERNALS$1].status >= 200 && this[INTERNALS$1].status < 300;
+	}
+
+	get redirected() {
+		return this[INTERNALS$1].counter > 0;
+	}
+
+	get statusText() {
+		return this[INTERNALS$1].statusText;
+	}
+
+	get headers() {
+		return this[INTERNALS$1].headers;
+	}
+
+	/**
+  * Clone this response
+  *
+  * @return  Response
+  */
+	clone() {
+		return new Response(clone(this), {
+			url: this.url,
+			status: this.status,
+			statusText: this.statusText,
+			headers: this.headers,
+			ok: this.ok,
+			redirected: this.redirected
+		});
+	}
+}
+
+Body.mixIn(Response.prototype);
+
+Object.defineProperties(Response.prototype, {
+	url: { enumerable: true },
+	status: { enumerable: true },
+	ok: { enumerable: true },
+	redirected: { enumerable: true },
+	statusText: { enumerable: true },
+	headers: { enumerable: true },
+	clone: { enumerable: true }
+});
+
+Object.defineProperty(Response.prototype, Symbol.toStringTag, {
+	value: 'Response',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+const INTERNALS$2 = Symbol('Request internals');
+const URL = Url.URL || whatwgUrl.URL;
+
+// fix an issue where "format", "parse" aren't a named export for node <10
+const parse_url = Url.parse;
+const format_url = Url.format;
+
+/**
+ * Wrapper around `new URL` to handle arbitrary URLs
+ *
+ * @param  {string} urlStr
+ * @return {void}
+ */
+function parseURL(urlStr) {
+	/*
+ 	Check whether the URL is absolute or not
+ 		Scheme: https://tools.ietf.org/html/rfc3986#section-3.1
+ 	Absolute URL: https://tools.ietf.org/html/rfc3986#section-4.3
+ */
+	if (/^[a-zA-Z][a-zA-Z\d+\-.]*:/.exec(urlStr)) {
+		urlStr = new URL(urlStr).toString();
+	}
+
+	// Fallback to old implementation for arbitrary URLs
+	return parse_url(urlStr);
+}
+
+const streamDestructionSupported = 'destroy' in Stream.Readable.prototype;
+
+/**
+ * Check if a value is an instance of Request.
+ *
+ * @param   Mixed   input
+ * @return  Boolean
+ */
+function isRequest(input) {
+	return typeof input === 'object' && typeof input[INTERNALS$2] === 'object';
+}
+
+function isAbortSignal(signal) {
+	const proto = signal && typeof signal === 'object' && Object.getPrototypeOf(signal);
+	return !!(proto && proto.constructor.name === 'AbortSignal');
+}
+
+/**
+ * Request class
+ *
+ * @param   Mixed   input  Url or Request instance
+ * @param   Object  init   Custom options
+ * @return  Void
+ */
+class Request {
+	constructor(input) {
+		let init = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+		let parsedURL;
+
+		// normalize input
+		if (!isRequest(input)) {
+			if (input && input.href) {
+				// in order to support Node.js' Url objects; though WHATWG's URL objects
+				// will fall into this branch also (since their `toString()` will return
+				// `href` property anyway)
+				parsedURL = parseURL(input.href);
+			} else {
+				// coerce input to a string before attempting to parse
+				parsedURL = parseURL(`${input}`);
+			}
+			input = {};
+		} else {
+			parsedURL = parseURL(input.url);
+		}
+
+		let method = init.method || input.method || 'GET';
+		method = method.toUpperCase();
+
+		if ((init.body != null || isRequest(input) && input.body !== null) && (method === 'GET' || method === 'HEAD')) {
+			throw new TypeError('Request with GET/HEAD method cannot have body');
+		}
+
+		let inputBody = init.body != null ? init.body : isRequest(input) && input.body !== null ? clone(input) : null;
+
+		Body.call(this, inputBody, {
+			timeout: init.timeout || input.timeout || 0,
+			size: init.size || input.size || 0
+		});
+
+		const headers = new Headers(init.headers || input.headers || {});
+
+		if (inputBody != null && !headers.has('Content-Type')) {
+			const contentType = extractContentType(inputBody);
+			if (contentType) {
+				headers.append('Content-Type', contentType);
+			}
+		}
+
+		let signal = isRequest(input) ? input.signal : null;
+		if ('signal' in init) signal = init.signal;
+
+		if (signal != null && !isAbortSignal(signal)) {
+			throw new TypeError('Expected signal to be an instanceof AbortSignal');
+		}
+
+		this[INTERNALS$2] = {
+			method,
+			redirect: init.redirect || input.redirect || 'follow',
+			headers,
+			parsedURL,
+			signal
+		};
+
+		// node-fetch-only options
+		this.follow = init.follow !== undefined ? init.follow : input.follow !== undefined ? input.follow : 20;
+		this.compress = init.compress !== undefined ? init.compress : input.compress !== undefined ? input.compress : true;
+		this.counter = init.counter || input.counter || 0;
+		this.agent = init.agent || input.agent;
+	}
+
+	get method() {
+		return this[INTERNALS$2].method;
+	}
+
+	get url() {
+		return format_url(this[INTERNALS$2].parsedURL);
+	}
+
+	get headers() {
+		return this[INTERNALS$2].headers;
+	}
+
+	get redirect() {
+		return this[INTERNALS$2].redirect;
+	}
+
+	get signal() {
+		return this[INTERNALS$2].signal;
+	}
+
+	/**
+  * Clone this request
+  *
+  * @return  Request
+  */
+	clone() {
+		return new Request(this);
+	}
+}
+
+Body.mixIn(Request.prototype);
+
+Object.defineProperty(Request.prototype, Symbol.toStringTag, {
+	value: 'Request',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+Object.defineProperties(Request.prototype, {
+	method: { enumerable: true },
+	url: { enumerable: true },
+	headers: { enumerable: true },
+	redirect: { enumerable: true },
+	clone: { enumerable: true },
+	signal: { enumerable: true }
+});
+
+/**
+ * Convert a Request to Node.js http request options.
+ *
+ * @param   Request  A Request instance
+ * @return  Object   The options object to be passed to http.request
+ */
+function getNodeRequestOptions(request) {
+	const parsedURL = request[INTERNALS$2].parsedURL;
+	const headers = new Headers(request[INTERNALS$2].headers);
+
+	// fetch step 1.3
+	if (!headers.has('Accept')) {
+		headers.set('Accept', '*/*');
+	}
+
+	// Basic fetch
+	if (!parsedURL.protocol || !parsedURL.hostname) {
+		throw new TypeError('Only absolute URLs are supported');
+	}
+
+	if (!/^https?:$/.test(parsedURL.protocol)) {
+		throw new TypeError('Only HTTP(S) protocols are supported');
+	}
+
+	if (request.signal && request.body instanceof Stream.Readable && !streamDestructionSupported) {
+		throw new Error('Cancellation of streamed requests with AbortSignal is not supported in node < 8');
+	}
+
+	// HTTP-network-or-cache fetch steps 2.4-2.7
+	let contentLengthValue = null;
+	if (request.body == null && /^(POST|PUT)$/i.test(request.method)) {
+		contentLengthValue = '0';
+	}
+	if (request.body != null) {
+		const totalBytes = getTotalBytes(request);
+		if (typeof totalBytes === 'number') {
+			contentLengthValue = String(totalBytes);
+		}
+	}
+	if (contentLengthValue) {
+		headers.set('Content-Length', contentLengthValue);
+	}
+
+	// HTTP-network-or-cache fetch step 2.11
+	if (!headers.has('User-Agent')) {
+		headers.set('User-Agent', 'node-fetch/1.0 (+https://github.com/bitinn/node-fetch)');
+	}
+
+	// HTTP-network-or-cache fetch step 2.15
+	if (request.compress && !headers.has('Accept-Encoding')) {
+		headers.set('Accept-Encoding', 'gzip,deflate');
+	}
+
+	let agent = request.agent;
+	if (typeof agent === 'function') {
+		agent = agent(parsedURL);
+	}
+
+	// HTTP-network fetch step 4.2
+	// chunked encoding is handled by Node.js
+
+	return Object.assign({}, parsedURL, {
+		method: request.method,
+		headers: exportNodeCompatibleHeaders(headers),
+		agent
+	});
+}
+
+/**
+ * abort-error.js
+ *
+ * AbortError interface for cancelled requests
+ */
+
+/**
+ * Create AbortError instance
+ *
+ * @param   String      message      Error message for human
+ * @return  AbortError
+ */
+function AbortError(message) {
+  Error.call(this, message);
+
+  this.type = 'aborted';
+  this.message = message;
+
+  // hide custom error implementation details from end-users
+  Error.captureStackTrace(this, this.constructor);
+}
+
+AbortError.prototype = Object.create(Error.prototype);
+AbortError.prototype.constructor = AbortError;
+AbortError.prototype.name = 'AbortError';
+
+const URL$1 = Url.URL || whatwgUrl.URL;
+
+// fix an issue where "PassThrough", "resolve" aren't a named export for node <10
+const PassThrough$1 = Stream.PassThrough;
+
+const isDomainOrSubdomain = function isDomainOrSubdomain(destination, original) {
+	const orig = new URL$1(original).hostname;
+	const dest = new URL$1(destination).hostname;
+
+	return orig === dest || orig[orig.length - dest.length - 1] === '.' && orig.endsWith(dest);
+};
+
+/**
+ * isSameProtocol reports whether the two provided URLs use the same protocol.
+ *
+ * Both domains must already be in canonical form.
+ * @param {string|URL} original
+ * @param {string|URL} destination
+ */
+const isSameProtocol = function isSameProtocol(destination, original) {
+	const orig = new URL$1(original).protocol;
+	const dest = new URL$1(destination).protocol;
+
+	return orig === dest;
+};
+
+/**
+ * Fetch function
+ *
+ * @param   Mixed    url   Absolute url or Request instance
+ * @param   Object   opts  Fetch options
+ * @return  Promise
+ */
+function fetch(url, opts) {
+
+	// allow custom promise
+	if (!fetch.Promise) {
+		throw new Error('native promise missing, set fetch.Promise to your favorite alternative');
+	}
+
+	Body.Promise = fetch.Promise;
+
+	// wrap http.request into fetch
+	return new fetch.Promise(function (resolve, reject) {
+		// build request object
+		const request = new Request(url, opts);
+		const options = getNodeRequestOptions(request);
+
+		const send = (options.protocol === 'https:' ? https : http).request;
+		const signal = request.signal;
+
+		let response = null;
+
+		const abort = function abort() {
+			let error = new AbortError('The user aborted a request.');
+			reject(error);
+			if (request.body && request.body instanceof Stream.Readable) {
+				destroyStream(request.body, error);
+			}
+			if (!response || !response.body) return;
+			response.body.emit('error', error);
+		};
+
+		if (signal && signal.aborted) {
+			abort();
+			return;
+		}
+
+		const abortAndFinalize = function abortAndFinalize() {
+			abort();
+			finalize();
+		};
+
+		// send request
+		const req = send(options);
+		let reqTimeout;
+
+		if (signal) {
+			signal.addEventListener('abort', abortAndFinalize);
+		}
+
+		function finalize() {
+			req.abort();
+			if (signal) signal.removeEventListener('abort', abortAndFinalize);
+			clearTimeout(reqTimeout);
+		}
+
+		if (request.timeout) {
+			req.once('socket', function (socket) {
+				reqTimeout = setTimeout(function () {
+					reject(new FetchError(`network timeout at: ${request.url}`, 'request-timeout'));
+					finalize();
+				}, request.timeout);
+			});
+		}
+
+		req.on('error', function (err) {
+			reject(new FetchError(`request to ${request.url} failed, reason: ${err.message}`, 'system', err));
+
+			if (response && response.body) {
+				destroyStream(response.body, err);
+			}
+
+			finalize();
+		});
+
+		fixResponseChunkedTransferBadEnding(req, function (err) {
+			if (signal && signal.aborted) {
+				return;
+			}
+
+			if (response && response.body) {
+				destroyStream(response.body, err);
+			}
+		});
+
+		/* c8 ignore next 18 */
+		if (parseInt(process.version.substring(1)) < 14) {
+			// Before Node.js 14, pipeline() does not fully support async iterators and does not always
+			// properly handle when the socket close/end events are out of order.
+			req.on('socket', function (s) {
+				s.addListener('close', function (hadError) {
+					// if a data listener is still present we didn't end cleanly
+					const hasDataListener = s.listenerCount('data') > 0;
+
+					// if end happened before close but the socket didn't emit an error, do it now
+					if (response && hasDataListener && !hadError && !(signal && signal.aborted)) {
+						const err = new Error('Premature close');
+						err.code = 'ERR_STREAM_PREMATURE_CLOSE';
+						response.body.emit('error', err);
+					}
+				});
+			});
+		}
+
+		req.on('response', function (res) {
+			clearTimeout(reqTimeout);
+
+			const headers = createHeadersLenient(res.headers);
+
+			// HTTP fetch step 5
+			if (fetch.isRedirect(res.statusCode)) {
+				// HTTP fetch step 5.2
+				const location = headers.get('Location');
+
+				// HTTP fetch step 5.3
+				let locationURL = null;
+				try {
+					locationURL = location === null ? null : new URL$1(location, request.url).toString();
+				} catch (err) {
+					// error here can only be invalid URL in Location: header
+					// do not throw when options.redirect == manual
+					// let the user extract the errorneous redirect URL
+					if (request.redirect !== 'manual') {
+						reject(new FetchError(`uri requested responds with an invalid redirect URL: ${location}`, 'invalid-redirect'));
+						finalize();
+						return;
+					}
+				}
+
+				// HTTP fetch step 5.5
+				switch (request.redirect) {
+					case 'error':
+						reject(new FetchError(`uri requested responds with a redirect, redirect mode is set to error: ${request.url}`, 'no-redirect'));
+						finalize();
+						return;
+					case 'manual':
+						// node-fetch-specific step: make manual redirect a bit easier to use by setting the Location header value to the resolved URL.
+						if (locationURL !== null) {
+							// handle corrupted header
+							try {
+								headers.set('Location', locationURL);
+							} catch (err) {
+								// istanbul ignore next: nodejs server prevent invalid response headers, we can't test this through normal request
+								reject(err);
+							}
+						}
+						break;
+					case 'follow':
+						// HTTP-redirect fetch step 2
+						if (locationURL === null) {
+							break;
+						}
+
+						// HTTP-redirect fetch step 5
+						if (request.counter >= request.follow) {
+							reject(new FetchError(`maximum redirect reached at: ${request.url}`, 'max-redirect'));
+							finalize();
+							return;
+						}
+
+						// HTTP-redirect fetch step 6 (counter increment)
+						// Create a new Request object.
+						const requestOpts = {
+							headers: new Headers(request.headers),
+							follow: request.follow,
+							counter: request.counter + 1,
+							agent: request.agent,
+							compress: request.compress,
+							method: request.method,
+							body: request.body,
+							signal: request.signal,
+							timeout: request.timeout,
+							size: request.size
+						};
+
+						if (!isDomainOrSubdomain(request.url, locationURL) || !isSameProtocol(request.url, locationURL)) {
+							for (const name of ['authorization', 'www-authenticate', 'cookie', 'cookie2']) {
+								requestOpts.headers.delete(name);
+							}
+						}
+
+						// HTTP-redirect fetch step 9
+						if (res.statusCode !== 303 && request.body && getTotalBytes(request) === null) {
+							reject(new FetchError('Cannot follow redirect with body being a readable stream', 'unsupported-redirect'));
+							finalize();
+							return;
+						}
+
+						// HTTP-redirect fetch step 11
+						if (res.statusCode === 303 || (res.statusCode === 301 || res.statusCode === 302) && request.method === 'POST') {
+							requestOpts.method = 'GET';
+							requestOpts.body = undefined;
+							requestOpts.headers.delete('content-length');
+						}
+
+						// HTTP-redirect fetch step 15
+						resolve(fetch(new Request(locationURL, requestOpts)));
+						finalize();
+						return;
+				}
+			}
+
+			// prepare response
+			res.once('end', function () {
+				if (signal) signal.removeEventListener('abort', abortAndFinalize);
+			});
+			let body = res.pipe(new PassThrough$1());
+
+			const response_options = {
+				url: request.url,
+				status: res.statusCode,
+				statusText: res.statusMessage,
+				headers: headers,
+				size: request.size,
+				timeout: request.timeout,
+				counter: request.counter
+			};
+
+			// HTTP-network fetch step 12.1.1.3
+			const codings = headers.get('Content-Encoding');
+
+			// HTTP-network fetch step 12.1.1.4: handle content codings
+
+			// in following scenarios we ignore compression support
+			// 1. compression support is disabled
+			// 2. HEAD request
+			// 3. no Content-Encoding header
+			// 4. no content response (204)
+			// 5. content not modified response (304)
+			if (!request.compress || request.method === 'HEAD' || codings === null || res.statusCode === 204 || res.statusCode === 304) {
+				response = new Response(body, response_options);
+				resolve(response);
+				return;
+			}
+
+			// For Node v6+
+			// Be less strict when decoding compressed responses, since sometimes
+			// servers send slightly invalid responses that are still accepted
+			// by common browsers.
+			// Always using Z_SYNC_FLUSH is what cURL does.
+			const zlibOptions = {
+				flush: zlib.Z_SYNC_FLUSH,
+				finishFlush: zlib.Z_SYNC_FLUSH
+			};
+
+			// for gzip
+			if (codings == 'gzip' || codings == 'x-gzip') {
+				body = body.pipe(zlib.createGunzip(zlibOptions));
+				response = new Response(body, response_options);
+				resolve(response);
+				return;
+			}
+
+			// for deflate
+			if (codings == 'deflate' || codings == 'x-deflate') {
+				// handle the infamous raw deflate response from old servers
+				// a hack for old IIS and Apache servers
+				const raw = res.pipe(new PassThrough$1());
+				raw.once('data', function (chunk) {
+					// see http://stackoverflow.com/questions/37519828
+					if ((chunk[0] & 0x0F) === 0x08) {
+						body = body.pipe(zlib.createInflate());
+					} else {
+						body = body.pipe(zlib.createInflateRaw());
+					}
+					response = new Response(body, response_options);
+					resolve(response);
+				});
+				raw.on('end', function () {
+					// some old IIS servers return zero-length OK deflate responses, so 'data' is never emitted.
+					if (!response) {
+						response = new Response(body, response_options);
+						resolve(response);
+					}
+				});
+				return;
+			}
+
+			// for br
+			if (codings == 'br' && typeof zlib.createBrotliDecompress === 'function') {
+				body = body.pipe(zlib.createBrotliDecompress());
+				response = new Response(body, response_options);
+				resolve(response);
+				return;
+			}
+
+			// otherwise, use response as-is
+			response = new Response(body, response_options);
+			resolve(response);
+		});
+
+		writeToStream(req, request);
+	});
+}
+function fixResponseChunkedTransferBadEnding(request, errorCallback) {
+	let socket;
+
+	request.on('socket', function (s) {
+		socket = s;
+	});
+
+	request.on('response', function (response) {
+		const headers = response.headers;
+
+		if (headers['transfer-encoding'] === 'chunked' && !headers['content-length']) {
+			response.once('close', function (hadError) {
+				// tests for socket presence, as in some situations the
+				// the 'socket' event is not triggered for the request
+				// (happens in deno), avoids `TypeError`
+				// if a data listener is still present we didn't end cleanly
+				const hasDataListener = socket && socket.listenerCount('data') > 0;
+
+				if (hasDataListener && !hadError) {
+					const err = new Error('Premature close');
+					err.code = 'ERR_STREAM_PREMATURE_CLOSE';
+					errorCallback(err);
+				}
+			});
+		}
+	});
+}
+
+function destroyStream(stream, err) {
+	if (stream.destroy) {
+		stream.destroy(err);
+	} else {
+		// node < 8
+		stream.emit('error', err);
+		stream.end();
+	}
+}
+
+/**
+ * Redirect code matching
+ *
+ * @param   Number   code  Status code
+ * @return  Boolean
+ */
+fetch.isRedirect = function (code) {
+	return code === 301 || code === 302 || code === 303 || code === 307 || code === 308;
+};
+
+// expose Promise
+fetch.Promise = global.Promise;
+
+module.exports = exports = fetch;
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.default = exports;
+exports.Headers = Headers;
+exports.Request = Request;
+exports.Response = Response;
+exports.FetchError = FetchError;
+exports.AbortError = AbortError;
diff --git a/node_modules/node-fetch/lib/index.mjs b/node_modules/node-fetch/lib/index.mjs
new file mode 100644
index 0000000..2863dd9
--- /dev/null
+++ b/node_modules/node-fetch/lib/index.mjs
@@ -0,0 +1,1775 @@
+import Stream from 'stream';
+import http from 'http';
+import Url from 'url';
+import whatwgUrl from 'whatwg-url';
+import https from 'https';
+import zlib from 'zlib';
+
+// Based on https://github.com/tmpvar/jsdom/blob/aa85b2abf07766ff7bf5c1f6daafb3726f2f2db5/lib/jsdom/living/blob.js
+
+// fix for "Readable" isn't a named export issue
+const Readable = Stream.Readable;
+
+const BUFFER = Symbol('buffer');
+const TYPE = Symbol('type');
+
+class Blob {
+	constructor() {
+		this[TYPE] = '';
+
+		const blobParts = arguments[0];
+		const options = arguments[1];
+
+		const buffers = [];
+		let size = 0;
+
+		if (blobParts) {
+			const a = blobParts;
+			const length = Number(a.length);
+			for (let i = 0; i < length; i++) {
+				const element = a[i];
+				let buffer;
+				if (element instanceof Buffer) {
+					buffer = element;
+				} else if (ArrayBuffer.isView(element)) {
+					buffer = Buffer.from(element.buffer, element.byteOffset, element.byteLength);
+				} else if (element instanceof ArrayBuffer) {
+					buffer = Buffer.from(element);
+				} else if (element instanceof Blob) {
+					buffer = element[BUFFER];
+				} else {
+					buffer = Buffer.from(typeof element === 'string' ? element : String(element));
+				}
+				size += buffer.length;
+				buffers.push(buffer);
+			}
+		}
+
+		this[BUFFER] = Buffer.concat(buffers);
+
+		let type = options && options.type !== undefined && String(options.type).toLowerCase();
+		if (type && !/[^\u0020-\u007E]/.test(type)) {
+			this[TYPE] = type;
+		}
+	}
+	get size() {
+		return this[BUFFER].length;
+	}
+	get type() {
+		return this[TYPE];
+	}
+	text() {
+		return Promise.resolve(this[BUFFER].toString());
+	}
+	arrayBuffer() {
+		const buf = this[BUFFER];
+		const ab = buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
+		return Promise.resolve(ab);
+	}
+	stream() {
+		const readable = new Readable();
+		readable._read = function () {};
+		readable.push(this[BUFFER]);
+		readable.push(null);
+		return readable;
+	}
+	toString() {
+		return '[object Blob]';
+	}
+	slice() {
+		const size = this.size;
+
+		const start = arguments[0];
+		const end = arguments[1];
+		let relativeStart, relativeEnd;
+		if (start === undefined) {
+			relativeStart = 0;
+		} else if (start < 0) {
+			relativeStart = Math.max(size + start, 0);
+		} else {
+			relativeStart = Math.min(start, size);
+		}
+		if (end === undefined) {
+			relativeEnd = size;
+		} else if (end < 0) {
+			relativeEnd = Math.max(size + end, 0);
+		} else {
+			relativeEnd = Math.min(end, size);
+		}
+		const span = Math.max(relativeEnd - relativeStart, 0);
+
+		const buffer = this[BUFFER];
+		const slicedBuffer = buffer.slice(relativeStart, relativeStart + span);
+		const blob = new Blob([], { type: arguments[2] });
+		blob[BUFFER] = slicedBuffer;
+		return blob;
+	}
+}
+
+Object.defineProperties(Blob.prototype, {
+	size: { enumerable: true },
+	type: { enumerable: true },
+	slice: { enumerable: true }
+});
+
+Object.defineProperty(Blob.prototype, Symbol.toStringTag, {
+	value: 'Blob',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+/**
+ * fetch-error.js
+ *
+ * FetchError interface for operational errors
+ */
+
+/**
+ * Create FetchError instance
+ *
+ * @param   String      message      Error message for human
+ * @param   String      type         Error type for machine
+ * @param   String      systemError  For Node.js system error
+ * @return  FetchError
+ */
+function FetchError(message, type, systemError) {
+  Error.call(this, message);
+
+  this.message = message;
+  this.type = type;
+
+  // when err.type is `system`, err.code contains system error code
+  if (systemError) {
+    this.code = this.errno = systemError.code;
+  }
+
+  // hide custom error implementation details from end-users
+  Error.captureStackTrace(this, this.constructor);
+}
+
+FetchError.prototype = Object.create(Error.prototype);
+FetchError.prototype.constructor = FetchError;
+FetchError.prototype.name = 'FetchError';
+
+let convert;
+try {
+	convert = require('encoding').convert;
+} catch (e) {}
+
+const INTERNALS = Symbol('Body internals');
+
+// fix an issue where "PassThrough" isn't a named export for node <10
+const PassThrough = Stream.PassThrough;
+
+/**
+ * Body mixin
+ *
+ * Ref: https://fetch.spec.whatwg.org/#body
+ *
+ * @param   Stream  body  Readable stream
+ * @param   Object  opts  Response options
+ * @return  Void
+ */
+function Body(body) {
+	var _this = this;
+
+	var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
+	    _ref$size = _ref.size;
+
+	let size = _ref$size === undefined ? 0 : _ref$size;
+	var _ref$timeout = _ref.timeout;
+	let timeout = _ref$timeout === undefined ? 0 : _ref$timeout;
+
+	if (body == null) {
+		// body is undefined or null
+		body = null;
+	} else if (isURLSearchParams(body)) {
+		// body is a URLSearchParams
+		body = Buffer.from(body.toString());
+	} else if (isBlob(body)) ; else if (Buffer.isBuffer(body)) ; else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
+		// body is ArrayBuffer
+		body = Buffer.from(body);
+	} else if (ArrayBuffer.isView(body)) {
+		// body is ArrayBufferView
+		body = Buffer.from(body.buffer, body.byteOffset, body.byteLength);
+	} else if (body instanceof Stream) ; else {
+		// none of the above
+		// coerce to string then buffer
+		body = Buffer.from(String(body));
+	}
+	this[INTERNALS] = {
+		body,
+		disturbed: false,
+		error: null
+	};
+	this.size = size;
+	this.timeout = timeout;
+
+	if (body instanceof Stream) {
+		body.on('error', function (err) {
+			const error = err.name === 'AbortError' ? err : new FetchError(`Invalid response body while trying to fetch ${_this.url}: ${err.message}`, 'system', err);
+			_this[INTERNALS].error = error;
+		});
+	}
+}
+
+Body.prototype = {
+	get body() {
+		return this[INTERNALS].body;
+	},
+
+	get bodyUsed() {
+		return this[INTERNALS].disturbed;
+	},
+
+	/**
+  * Decode response as ArrayBuffer
+  *
+  * @return  Promise
+  */
+	arrayBuffer() {
+		return consumeBody.call(this).then(function (buf) {
+			return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
+		});
+	},
+
+	/**
+  * Return raw response as Blob
+  *
+  * @return Promise
+  */
+	blob() {
+		let ct = this.headers && this.headers.get('content-type') || '';
+		return consumeBody.call(this).then(function (buf) {
+			return Object.assign(
+			// Prevent copying
+			new Blob([], {
+				type: ct.toLowerCase()
+			}), {
+				[BUFFER]: buf
+			});
+		});
+	},
+
+	/**
+  * Decode response as json
+  *
+  * @return  Promise
+  */
+	json() {
+		var _this2 = this;
+
+		return consumeBody.call(this).then(function (buffer) {
+			try {
+				return JSON.parse(buffer.toString());
+			} catch (err) {
+				return Body.Promise.reject(new FetchError(`invalid json response body at ${_this2.url} reason: ${err.message}`, 'invalid-json'));
+			}
+		});
+	},
+
+	/**
+  * Decode response as text
+  *
+  * @return  Promise
+  */
+	text() {
+		return consumeBody.call(this).then(function (buffer) {
+			return buffer.toString();
+		});
+	},
+
+	/**
+  * Decode response as buffer (non-spec api)
+  *
+  * @return  Promise
+  */
+	buffer() {
+		return consumeBody.call(this);
+	},
+
+	/**
+  * Decode response as text, while automatically detecting the encoding and
+  * trying to decode to UTF-8 (non-spec api)
+  *
+  * @return  Promise
+  */
+	textConverted() {
+		var _this3 = this;
+
+		return consumeBody.call(this).then(function (buffer) {
+			return convertBody(buffer, _this3.headers);
+		});
+	}
+};
+
+// In browsers, all properties are enumerable.
+Object.defineProperties(Body.prototype, {
+	body: { enumerable: true },
+	bodyUsed: { enumerable: true },
+	arrayBuffer: { enumerable: true },
+	blob: { enumerable: true },
+	json: { enumerable: true },
+	text: { enumerable: true }
+});
+
+Body.mixIn = function (proto) {
+	for (const name of Object.getOwnPropertyNames(Body.prototype)) {
+		// istanbul ignore else: future proof
+		if (!(name in proto)) {
+			const desc = Object.getOwnPropertyDescriptor(Body.prototype, name);
+			Object.defineProperty(proto, name, desc);
+		}
+	}
+};
+
+/**
+ * Consume and convert an entire Body to a Buffer.
+ *
+ * Ref: https://fetch.spec.whatwg.org/#concept-body-consume-body
+ *
+ * @return  Promise
+ */
+function consumeBody() {
+	var _this4 = this;
+
+	if (this[INTERNALS].disturbed) {
+		return Body.Promise.reject(new TypeError(`body used already for: ${this.url}`));
+	}
+
+	this[INTERNALS].disturbed = true;
+
+	if (this[INTERNALS].error) {
+		return Body.Promise.reject(this[INTERNALS].error);
+	}
+
+	let body = this.body;
+
+	// body is null
+	if (body === null) {
+		return Body.Promise.resolve(Buffer.alloc(0));
+	}
+
+	// body is blob
+	if (isBlob(body)) {
+		body = body.stream();
+	}
+
+	// body is buffer
+	if (Buffer.isBuffer(body)) {
+		return Body.Promise.resolve(body);
+	}
+
+	// istanbul ignore if: should never happen
+	if (!(body instanceof Stream)) {
+		return Body.Promise.resolve(Buffer.alloc(0));
+	}
+
+	// body is stream
+	// get ready to actually consume the body
+	let accum = [];
+	let accumBytes = 0;
+	let abort = false;
+
+	return new Body.Promise(function (resolve, reject) {
+		let resTimeout;
+
+		// allow timeout on slow response body
+		if (_this4.timeout) {
+			resTimeout = setTimeout(function () {
+				abort = true;
+				reject(new FetchError(`Response timeout while trying to fetch ${_this4.url} (over ${_this4.timeout}ms)`, 'body-timeout'));
+			}, _this4.timeout);
+		}
+
+		// handle stream errors
+		body.on('error', function (err) {
+			if (err.name === 'AbortError') {
+				// if the request was aborted, reject with this Error
+				abort = true;
+				reject(err);
+			} else {
+				// other errors, such as incorrect content-encoding
+				reject(new FetchError(`Invalid response body while trying to fetch ${_this4.url}: ${err.message}`, 'system', err));
+			}
+		});
+
+		body.on('data', function (chunk) {
+			if (abort || chunk === null) {
+				return;
+			}
+
+			if (_this4.size && accumBytes + chunk.length > _this4.size) {
+				abort = true;
+				reject(new FetchError(`content size at ${_this4.url} over limit: ${_this4.size}`, 'max-size'));
+				return;
+			}
+
+			accumBytes += chunk.length;
+			accum.push(chunk);
+		});
+
+		body.on('end', function () {
+			if (abort) {
+				return;
+			}
+
+			clearTimeout(resTimeout);
+
+			try {
+				resolve(Buffer.concat(accum, accumBytes));
+			} catch (err) {
+				// handle streams that have accumulated too much data (issue #414)
+				reject(new FetchError(`Could not create Buffer from response body for ${_this4.url}: ${err.message}`, 'system', err));
+			}
+		});
+	});
+}
+
+/**
+ * Detect buffer encoding and convert to target encoding
+ * ref: http://www.w3.org/TR/2011/WD-html5-20110113/parsing.html#determining-the-character-encoding
+ *
+ * @param   Buffer  buffer    Incoming buffer
+ * @param   String  encoding  Target encoding
+ * @return  String
+ */
+function convertBody(buffer, headers) {
+	if (typeof convert !== 'function') {
+		throw new Error('The package `encoding` must be installed to use the textConverted() function');
+	}
+
+	const ct = headers.get('content-type');
+	let charset = 'utf-8';
+	let res, str;
+
+	// header
+	if (ct) {
+		res = /charset=([^;]*)/i.exec(ct);
+	}
+
+	// no charset in content type, peek at response body for at most 1024 bytes
+	str = buffer.slice(0, 1024).toString();
+
+	// html5
+	if (!res && str) {
+		res = /<meta.+?charset=(['"])(.+?)\1/i.exec(str);
+	}
+
+	// html4
+	if (!res && str) {
+		res = /<meta[\s]+?http-equiv=(['"])content-type\1[\s]+?content=(['"])(.+?)\2/i.exec(str);
+		if (!res) {
+			res = /<meta[\s]+?content=(['"])(.+?)\1[\s]+?http-equiv=(['"])content-type\3/i.exec(str);
+			if (res) {
+				res.pop(); // drop last quote
+			}
+		}
+
+		if (res) {
+			res = /charset=(.*)/i.exec(res.pop());
+		}
+	}
+
+	// xml
+	if (!res && str) {
+		res = /<\?xml.+?encoding=(['"])(.+?)\1/i.exec(str);
+	}
+
+	// found charset
+	if (res) {
+		charset = res.pop();
+
+		// prevent decode issues when sites use incorrect encoding
+		// ref: https://hsivonen.fi/encoding-menu/
+		if (charset === 'gb2312' || charset === 'gbk') {
+			charset = 'gb18030';
+		}
+	}
+
+	// turn raw buffers into a single utf-8 buffer
+	return convert(buffer, 'UTF-8', charset).toString();
+}
+
+/**
+ * Detect a URLSearchParams object
+ * ref: https://github.com/bitinn/node-fetch/issues/296#issuecomment-307598143
+ *
+ * @param   Object  obj     Object to detect by type or brand
+ * @return  String
+ */
+function isURLSearchParams(obj) {
+	// Duck-typing as a necessary condition.
+	if (typeof obj !== 'object' || typeof obj.append !== 'function' || typeof obj.delete !== 'function' || typeof obj.get !== 'function' || typeof obj.getAll !== 'function' || typeof obj.has !== 'function' || typeof obj.set !== 'function') {
+		return false;
+	}
+
+	// Brand-checking and more duck-typing as optional condition.
+	return obj.constructor.name === 'URLSearchParams' || Object.prototype.toString.call(obj) === '[object URLSearchParams]' || typeof obj.sort === 'function';
+}
+
+/**
+ * Check if `obj` is a W3C `Blob` object (which `File` inherits from)
+ * @param  {*} obj
+ * @return {boolean}
+ */
+function isBlob(obj) {
+	return typeof obj === 'object' && typeof obj.arrayBuffer === 'function' && typeof obj.type === 'string' && typeof obj.stream === 'function' && typeof obj.constructor === 'function' && typeof obj.constructor.name === 'string' && /^(Blob|File)$/.test(obj.constructor.name) && /^(Blob|File)$/.test(obj[Symbol.toStringTag]);
+}
+
+/**
+ * Clone body given Res/Req instance
+ *
+ * @param   Mixed  instance  Response or Request instance
+ * @return  Mixed
+ */
+function clone(instance) {
+	let p1, p2;
+	let body = instance.body;
+
+	// don't allow cloning a used body
+	if (instance.bodyUsed) {
+		throw new Error('cannot clone body after it is used');
+	}
+
+	// check that body is a stream and not form-data object
+	// note: we can't clone the form-data object without having it as a dependency
+	if (body instanceof Stream && typeof body.getBoundary !== 'function') {
+		// tee instance body
+		p1 = new PassThrough();
+		p2 = new PassThrough();
+		body.pipe(p1);
+		body.pipe(p2);
+		// set instance body to teed body and return the other teed body
+		instance[INTERNALS].body = p1;
+		body = p2;
+	}
+
+	return body;
+}
+
+/**
+ * Performs the operation "extract a `Content-Type` value from |object|" as
+ * specified in the specification:
+ * https://fetch.spec.whatwg.org/#concept-bodyinit-extract
+ *
+ * This function assumes that instance.body is present.
+ *
+ * @param   Mixed  instance  Any options.body input
+ */
+function extractContentType(body) {
+	if (body === null) {
+		// body is null
+		return null;
+	} else if (typeof body === 'string') {
+		// body is string
+		return 'text/plain;charset=UTF-8';
+	} else if (isURLSearchParams(body)) {
+		// body is a URLSearchParams
+		return 'application/x-www-form-urlencoded;charset=UTF-8';
+	} else if (isBlob(body)) {
+		// body is blob
+		return body.type || null;
+	} else if (Buffer.isBuffer(body)) {
+		// body is buffer
+		return null;
+	} else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
+		// body is ArrayBuffer
+		return null;
+	} else if (ArrayBuffer.isView(body)) {
+		// body is ArrayBufferView
+		return null;
+	} else if (typeof body.getBoundary === 'function') {
+		// detect form data input from form-data module
+		return `multipart/form-data;boundary=${body.getBoundary()}`;
+	} else if (body instanceof Stream) {
+		// body is stream
+		// can't really do much about this
+		return null;
+	} else {
+		// Body constructor defaults other things to string
+		return 'text/plain;charset=UTF-8';
+	}
+}
+
+/**
+ * The Fetch Standard treats this as if "total bytes" is a property on the body.
+ * For us, we have to explicitly get it with a function.
+ *
+ * ref: https://fetch.spec.whatwg.org/#concept-body-total-bytes
+ *
+ * @param   Body    instance   Instance of Body
+ * @return  Number?            Number of bytes, or null if not possible
+ */
+function getTotalBytes(instance) {
+	const body = instance.body;
+
+
+	if (body === null) {
+		// body is null
+		return 0;
+	} else if (isBlob(body)) {
+		return body.size;
+	} else if (Buffer.isBuffer(body)) {
+		// body is buffer
+		return body.length;
+	} else if (body && typeof body.getLengthSync === 'function') {
+		// detect form data input from form-data module
+		if (body._lengthRetrievers && body._lengthRetrievers.length == 0 || // 1.x
+		body.hasKnownLength && body.hasKnownLength()) {
+			// 2.x
+			return body.getLengthSync();
+		}
+		return null;
+	} else {
+		// body is stream
+		return null;
+	}
+}
+
+/**
+ * Write a Body to a Node.js WritableStream (e.g. http.Request) object.
+ *
+ * @param   Body    instance   Instance of Body
+ * @return  Void
+ */
+function writeToStream(dest, instance) {
+	const body = instance.body;
+
+
+	if (body === null) {
+		// body is null
+		dest.end();
+	} else if (isBlob(body)) {
+		body.stream().pipe(dest);
+	} else if (Buffer.isBuffer(body)) {
+		// body is buffer
+		dest.write(body);
+		dest.end();
+	} else {
+		// body is stream
+		body.pipe(dest);
+	}
+}
+
+// expose Promise
+Body.Promise = global.Promise;
+
+/**
+ * headers.js
+ *
+ * Headers class offers convenient helpers
+ */
+
+const invalidTokenRegex = /[^\^_`a-zA-Z\-0-9!#$%&'*+.|~]/;
+const invalidHeaderCharRegex = /[^\t\x20-\x7e\x80-\xff]/;
+
+function validateName(name) {
+	name = `${name}`;
+	if (invalidTokenRegex.test(name) || name === '') {
+		throw new TypeError(`${name} is not a legal HTTP header name`);
+	}
+}
+
+function validateValue(value) {
+	value = `${value}`;
+	if (invalidHeaderCharRegex.test(value)) {
+		throw new TypeError(`${value} is not a legal HTTP header value`);
+	}
+}
+
+/**
+ * Find the key in the map object given a header name.
+ *
+ * Returns undefined if not found.
+ *
+ * @param   String  name  Header name
+ * @return  String|Undefined
+ */
+function find(map, name) {
+	name = name.toLowerCase();
+	for (const key in map) {
+		if (key.toLowerCase() === name) {
+			return key;
+		}
+	}
+	return undefined;
+}
+
+const MAP = Symbol('map');
+class Headers {
+	/**
+  * Headers class
+  *
+  * @param   Object  headers  Response headers
+  * @return  Void
+  */
+	constructor() {
+		let init = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : undefined;
+
+		this[MAP] = Object.create(null);
+
+		if (init instanceof Headers) {
+			const rawHeaders = init.raw();
+			const headerNames = Object.keys(rawHeaders);
+
+			for (const headerName of headerNames) {
+				for (const value of rawHeaders[headerName]) {
+					this.append(headerName, value);
+				}
+			}
+
+			return;
+		}
+
+		// We don't worry about converting prop to ByteString here as append()
+		// will handle it.
+		if (init == null) ; else if (typeof init === 'object') {
+			const method = init[Symbol.iterator];
+			if (method != null) {
+				if (typeof method !== 'function') {
+					throw new TypeError('Header pairs must be iterable');
+				}
+
+				// sequence<sequence<ByteString>>
+				// Note: per spec we have to first exhaust the lists then process them
+				const pairs = [];
+				for (const pair of init) {
+					if (typeof pair !== 'object' || typeof pair[Symbol.iterator] !== 'function') {
+						throw new TypeError('Each header pair must be iterable');
+					}
+					pairs.push(Array.from(pair));
+				}
+
+				for (const pair of pairs) {
+					if (pair.length !== 2) {
+						throw new TypeError('Each header pair must be a name/value tuple');
+					}
+					this.append(pair[0], pair[1]);
+				}
+			} else {
+				// record<ByteString, ByteString>
+				for (const key of Object.keys(init)) {
+					const value = init[key];
+					this.append(key, value);
+				}
+			}
+		} else {
+			throw new TypeError('Provided initializer must be an object');
+		}
+	}
+
+	/**
+  * Return combined header value given name
+  *
+  * @param   String  name  Header name
+  * @return  Mixed
+  */
+	get(name) {
+		name = `${name}`;
+		validateName(name);
+		const key = find(this[MAP], name);
+		if (key === undefined) {
+			return null;
+		}
+
+		return this[MAP][key].join(', ');
+	}
+
+	/**
+  * Iterate over all headers
+  *
+  * @param   Function  callback  Executed for each item with parameters (value, name, thisArg)
+  * @param   Boolean   thisArg   `this` context for callback function
+  * @return  Void
+  */
+	forEach(callback) {
+		let thisArg = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : undefined;
+
+		let pairs = getHeaders(this);
+		let i = 0;
+		while (i < pairs.length) {
+			var _pairs$i = pairs[i];
+			const name = _pairs$i[0],
+			      value = _pairs$i[1];
+
+			callback.call(thisArg, value, name, this);
+			pairs = getHeaders(this);
+			i++;
+		}
+	}
+
+	/**
+  * Overwrite header values given name
+  *
+  * @param   String  name   Header name
+  * @param   String  value  Header value
+  * @return  Void
+  */
+	set(name, value) {
+		name = `${name}`;
+		value = `${value}`;
+		validateName(name);
+		validateValue(value);
+		const key = find(this[MAP], name);
+		this[MAP][key !== undefined ? key : name] = [value];
+	}
+
+	/**
+  * Append a value onto existing header
+  *
+  * @param   String  name   Header name
+  * @param   String  value  Header value
+  * @return  Void
+  */
+	append(name, value) {
+		name = `${name}`;
+		value = `${value}`;
+		validateName(name);
+		validateValue(value);
+		const key = find(this[MAP], name);
+		if (key !== undefined) {
+			this[MAP][key].push(value);
+		} else {
+			this[MAP][name] = [value];
+		}
+	}
+
+	/**
+  * Check for header name existence
+  *
+  * @param   String   name  Header name
+  * @return  Boolean
+  */
+	has(name) {
+		name = `${name}`;
+		validateName(name);
+		return find(this[MAP], name) !== undefined;
+	}
+
+	/**
+  * Delete all header values given name
+  *
+  * @param   String  name  Header name
+  * @return  Void
+  */
+	delete(name) {
+		name = `${name}`;
+		validateName(name);
+		const key = find(this[MAP], name);
+		if (key !== undefined) {
+			delete this[MAP][key];
+		}
+	}
+
+	/**
+  * Return raw headers (non-spec api)
+  *
+  * @return  Object
+  */
+	raw() {
+		return this[MAP];
+	}
+
+	/**
+  * Get an iterator on keys.
+  *
+  * @return  Iterator
+  */
+	keys() {
+		return createHeadersIterator(this, 'key');
+	}
+
+	/**
+  * Get an iterator on values.
+  *
+  * @return  Iterator
+  */
+	values() {
+		return createHeadersIterator(this, 'value');
+	}
+
+	/**
+  * Get an iterator on entries.
+  *
+  * This is the default iterator of the Headers object.
+  *
+  * @return  Iterator
+  */
+	[Symbol.iterator]() {
+		return createHeadersIterator(this, 'key+value');
+	}
+}
+Headers.prototype.entries = Headers.prototype[Symbol.iterator];
+
+Object.defineProperty(Headers.prototype, Symbol.toStringTag, {
+	value: 'Headers',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+Object.defineProperties(Headers.prototype, {
+	get: { enumerable: true },
+	forEach: { enumerable: true },
+	set: { enumerable: true },
+	append: { enumerable: true },
+	has: { enumerable: true },
+	delete: { enumerable: true },
+	keys: { enumerable: true },
+	values: { enumerable: true },
+	entries: { enumerable: true }
+});
+
+function getHeaders(headers) {
+	let kind = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'key+value';
+
+	const keys = Object.keys(headers[MAP]).sort();
+	return keys.map(kind === 'key' ? function (k) {
+		return k.toLowerCase();
+	} : kind === 'value' ? function (k) {
+		return headers[MAP][k].join(', ');
+	} : function (k) {
+		return [k.toLowerCase(), headers[MAP][k].join(', ')];
+	});
+}
+
+const INTERNAL = Symbol('internal');
+
+function createHeadersIterator(target, kind) {
+	const iterator = Object.create(HeadersIteratorPrototype);
+	iterator[INTERNAL] = {
+		target,
+		kind,
+		index: 0
+	};
+	return iterator;
+}
+
+const HeadersIteratorPrototype = Object.setPrototypeOf({
+	next() {
+		// istanbul ignore if
+		if (!this || Object.getPrototypeOf(this) !== HeadersIteratorPrototype) {
+			throw new TypeError('Value of `this` is not a HeadersIterator');
+		}
+
+		var _INTERNAL = this[INTERNAL];
+		const target = _INTERNAL.target,
+		      kind = _INTERNAL.kind,
+		      index = _INTERNAL.index;
+
+		const values = getHeaders(target, kind);
+		const len = values.length;
+		if (index >= len) {
+			return {
+				value: undefined,
+				done: true
+			};
+		}
+
+		this[INTERNAL].index = index + 1;
+
+		return {
+			value: values[index],
+			done: false
+		};
+	}
+}, Object.getPrototypeOf(Object.getPrototypeOf([][Symbol.iterator]())));
+
+Object.defineProperty(HeadersIteratorPrototype, Symbol.toStringTag, {
+	value: 'HeadersIterator',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+/**
+ * Export the Headers object in a form that Node.js can consume.
+ *
+ * @param   Headers  headers
+ * @return  Object
+ */
+function exportNodeCompatibleHeaders(headers) {
+	const obj = Object.assign({ __proto__: null }, headers[MAP]);
+
+	// http.request() only supports string as Host header. This hack makes
+	// specifying custom Host header possible.
+	const hostHeaderKey = find(headers[MAP], 'Host');
+	if (hostHeaderKey !== undefined) {
+		obj[hostHeaderKey] = obj[hostHeaderKey][0];
+	}
+
+	return obj;
+}
+
+/**
+ * Create a Headers object from an object of headers, ignoring those that do
+ * not conform to HTTP grammar productions.
+ *
+ * @param   Object  obj  Object of headers
+ * @return  Headers
+ */
+function createHeadersLenient(obj) {
+	const headers = new Headers();
+	for (const name of Object.keys(obj)) {
+		if (invalidTokenRegex.test(name)) {
+			continue;
+		}
+		if (Array.isArray(obj[name])) {
+			for (const val of obj[name]) {
+				if (invalidHeaderCharRegex.test(val)) {
+					continue;
+				}
+				if (headers[MAP][name] === undefined) {
+					headers[MAP][name] = [val];
+				} else {
+					headers[MAP][name].push(val);
+				}
+			}
+		} else if (!invalidHeaderCharRegex.test(obj[name])) {
+			headers[MAP][name] = [obj[name]];
+		}
+	}
+	return headers;
+}
+
+const INTERNALS$1 = Symbol('Response internals');
+
+// fix an issue where "STATUS_CODES" aren't a named export for node <10
+const STATUS_CODES = http.STATUS_CODES;
+
+/**
+ * Response class
+ *
+ * @param   Stream  body  Readable stream
+ * @param   Object  opts  Response options
+ * @return  Void
+ */
+class Response {
+	constructor() {
+		let body = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+		let opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+		Body.call(this, body, opts);
+
+		const status = opts.status || 200;
+		const headers = new Headers(opts.headers);
+
+		if (body != null && !headers.has('Content-Type')) {
+			const contentType = extractContentType(body);
+			if (contentType) {
+				headers.append('Content-Type', contentType);
+			}
+		}
+
+		this[INTERNALS$1] = {
+			url: opts.url,
+			status,
+			statusText: opts.statusText || STATUS_CODES[status],
+			headers,
+			counter: opts.counter
+		};
+	}
+
+	get url() {
+		return this[INTERNALS$1].url || '';
+	}
+
+	get status() {
+		return this[INTERNALS$1].status;
+	}
+
+	/**
+  * Convenience property representing if the request ended normally
+  */
+	get ok() {
+		return this[INTERNALS$1].status >= 200 && this[INTERNALS$1].status < 300;
+	}
+
+	get redirected() {
+		return this[INTERNALS$1].counter > 0;
+	}
+
+	get statusText() {
+		return this[INTERNALS$1].statusText;
+	}
+
+	get headers() {
+		return this[INTERNALS$1].headers;
+	}
+
+	/**
+  * Clone this response
+  *
+  * @return  Response
+  */
+	clone() {
+		return new Response(clone(this), {
+			url: this.url,
+			status: this.status,
+			statusText: this.statusText,
+			headers: this.headers,
+			ok: this.ok,
+			redirected: this.redirected
+		});
+	}
+}
+
+Body.mixIn(Response.prototype);
+
+Object.defineProperties(Response.prototype, {
+	url: { enumerable: true },
+	status: { enumerable: true },
+	ok: { enumerable: true },
+	redirected: { enumerable: true },
+	statusText: { enumerable: true },
+	headers: { enumerable: true },
+	clone: { enumerable: true }
+});
+
+Object.defineProperty(Response.prototype, Symbol.toStringTag, {
+	value: 'Response',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+const INTERNALS$2 = Symbol('Request internals');
+const URL = Url.URL || whatwgUrl.URL;
+
+// fix an issue where "format", "parse" aren't a named export for node <10
+const parse_url = Url.parse;
+const format_url = Url.format;
+
+/**
+ * Wrapper around `new URL` to handle arbitrary URLs
+ *
+ * @param  {string} urlStr
+ * @return {void}
+ */
+function parseURL(urlStr) {
+	/*
+ 	Check whether the URL is absolute or not
+ 		Scheme: https://tools.ietf.org/html/rfc3986#section-3.1
+ 	Absolute URL: https://tools.ietf.org/html/rfc3986#section-4.3
+ */
+	if (/^[a-zA-Z][a-zA-Z\d+\-.]*:/.exec(urlStr)) {
+		urlStr = new URL(urlStr).toString();
+	}
+
+	// Fallback to old implementation for arbitrary URLs
+	return parse_url(urlStr);
+}
+
+const streamDestructionSupported = 'destroy' in Stream.Readable.prototype;
+
+/**
+ * Check if a value is an instance of Request.
+ *
+ * @param   Mixed   input
+ * @return  Boolean
+ */
+function isRequest(input) {
+	return typeof input === 'object' && typeof input[INTERNALS$2] === 'object';
+}
+
+function isAbortSignal(signal) {
+	const proto = signal && typeof signal === 'object' && Object.getPrototypeOf(signal);
+	return !!(proto && proto.constructor.name === 'AbortSignal');
+}
+
+/**
+ * Request class
+ *
+ * @param   Mixed   input  Url or Request instance
+ * @param   Object  init   Custom options
+ * @return  Void
+ */
+class Request {
+	constructor(input) {
+		let init = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+		let parsedURL;
+
+		// normalize input
+		if (!isRequest(input)) {
+			if (input && input.href) {
+				// in order to support Node.js' Url objects; though WHATWG's URL objects
+				// will fall into this branch also (since their `toString()` will return
+				// `href` property anyway)
+				parsedURL = parseURL(input.href);
+			} else {
+				// coerce input to a string before attempting to parse
+				parsedURL = parseURL(`${input}`);
+			}
+			input = {};
+		} else {
+			parsedURL = parseURL(input.url);
+		}
+
+		let method = init.method || input.method || 'GET';
+		method = method.toUpperCase();
+
+		if ((init.body != null || isRequest(input) && input.body !== null) && (method === 'GET' || method === 'HEAD')) {
+			throw new TypeError('Request with GET/HEAD method cannot have body');
+		}
+
+		let inputBody = init.body != null ? init.body : isRequest(input) && input.body !== null ? clone(input) : null;
+
+		Body.call(this, inputBody, {
+			timeout: init.timeout || input.timeout || 0,
+			size: init.size || input.size || 0
+		});
+
+		const headers = new Headers(init.headers || input.headers || {});
+
+		if (inputBody != null && !headers.has('Content-Type')) {
+			const contentType = extractContentType(inputBody);
+			if (contentType) {
+				headers.append('Content-Type', contentType);
+			}
+		}
+
+		let signal = isRequest(input) ? input.signal : null;
+		if ('signal' in init) signal = init.signal;
+
+		if (signal != null && !isAbortSignal(signal)) {
+			throw new TypeError('Expected signal to be an instanceof AbortSignal');
+		}
+
+		this[INTERNALS$2] = {
+			method,
+			redirect: init.redirect || input.redirect || 'follow',
+			headers,
+			parsedURL,
+			signal
+		};
+
+		// node-fetch-only options
+		this.follow = init.follow !== undefined ? init.follow : input.follow !== undefined ? input.follow : 20;
+		this.compress = init.compress !== undefined ? init.compress : input.compress !== undefined ? input.compress : true;
+		this.counter = init.counter || input.counter || 0;
+		this.agent = init.agent || input.agent;
+	}
+
+	get method() {
+		return this[INTERNALS$2].method;
+	}
+
+	get url() {
+		return format_url(this[INTERNALS$2].parsedURL);
+	}
+
+	get headers() {
+		return this[INTERNALS$2].headers;
+	}
+
+	get redirect() {
+		return this[INTERNALS$2].redirect;
+	}
+
+	get signal() {
+		return this[INTERNALS$2].signal;
+	}
+
+	/**
+  * Clone this request
+  *
+  * @return  Request
+  */
+	clone() {
+		return new Request(this);
+	}
+}
+
+Body.mixIn(Request.prototype);
+
+Object.defineProperty(Request.prototype, Symbol.toStringTag, {
+	value: 'Request',
+	writable: false,
+	enumerable: false,
+	configurable: true
+});
+
+Object.defineProperties(Request.prototype, {
+	method: { enumerable: true },
+	url: { enumerable: true },
+	headers: { enumerable: true },
+	redirect: { enumerable: true },
+	clone: { enumerable: true },
+	signal: { enumerable: true }
+});
+
+/**
+ * Convert a Request to Node.js http request options.
+ *
+ * @param   Request  A Request instance
+ * @return  Object   The options object to be passed to http.request
+ */
+function getNodeRequestOptions(request) {
+	const parsedURL = request[INTERNALS$2].parsedURL;
+	const headers = new Headers(request[INTERNALS$2].headers);
+
+	// fetch step 1.3
+	if (!headers.has('Accept')) {
+		headers.set('Accept', '*/*');
+	}
+
+	// Basic fetch
+	if (!parsedURL.protocol || !parsedURL.hostname) {
+		throw new TypeError('Only absolute URLs are supported');
+	}
+
+	if (!/^https?:$/.test(parsedURL.protocol)) {
+		throw new TypeError('Only HTTP(S) protocols are supported');
+	}
+
+	if (request.signal && request.body instanceof Stream.Readable && !streamDestructionSupported) {
+		throw new Error('Cancellation of streamed requests with AbortSignal is not supported in node < 8');
+	}
+
+	// HTTP-network-or-cache fetch steps 2.4-2.7
+	let contentLengthValue = null;
+	if (request.body == null && /^(POST|PUT)$/i.test(request.method)) {
+		contentLengthValue = '0';
+	}
+	if (request.body != null) {
+		const totalBytes = getTotalBytes(request);
+		if (typeof totalBytes === 'number') {
+			contentLengthValue = String(totalBytes);
+		}
+	}
+	if (contentLengthValue) {
+		headers.set('Content-Length', contentLengthValue);
+	}
+
+	// HTTP-network-or-cache fetch step 2.11
+	if (!headers.has('User-Agent')) {
+		headers.set('User-Agent', 'node-fetch/1.0 (+https://github.com/bitinn/node-fetch)');
+	}
+
+	// HTTP-network-or-cache fetch step 2.15
+	if (request.compress && !headers.has('Accept-Encoding')) {
+		headers.set('Accept-Encoding', 'gzip,deflate');
+	}
+
+	let agent = request.agent;
+	if (typeof agent === 'function') {
+		agent = agent(parsedURL);
+	}
+
+	// HTTP-network fetch step 4.2
+	// chunked encoding is handled by Node.js
+
+	return Object.assign({}, parsedURL, {
+		method: request.method,
+		headers: exportNodeCompatibleHeaders(headers),
+		agent
+	});
+}
+
+/**
+ * abort-error.js
+ *
+ * AbortError interface for cancelled requests
+ */
+
+/**
+ * Create AbortError instance
+ *
+ * @param   String      message      Error message for human
+ * @return  AbortError
+ */
+function AbortError(message) {
+  Error.call(this, message);
+
+  this.type = 'aborted';
+  this.message = message;
+
+  // hide custom error implementation details from end-users
+  Error.captureStackTrace(this, this.constructor);
+}
+
+AbortError.prototype = Object.create(Error.prototype);
+AbortError.prototype.constructor = AbortError;
+AbortError.prototype.name = 'AbortError';
+
+const URL$1 = Url.URL || whatwgUrl.URL;
+
+// fix an issue where "PassThrough", "resolve" aren't a named export for node <10
+const PassThrough$1 = Stream.PassThrough;
+
+const isDomainOrSubdomain = function isDomainOrSubdomain(destination, original) {
+	const orig = new URL$1(original).hostname;
+	const dest = new URL$1(destination).hostname;
+
+	return orig === dest || orig[orig.length - dest.length - 1] === '.' && orig.endsWith(dest);
+};
+
+/**
+ * isSameProtocol reports whether the two provided URLs use the same protocol.
+ *
+ * Both domains must already be in canonical form.
+ * @param {string|URL} original
+ * @param {string|URL} destination
+ */
+const isSameProtocol = function isSameProtocol(destination, original) {
+	const orig = new URL$1(original).protocol;
+	const dest = new URL$1(destination).protocol;
+
+	return orig === dest;
+};
+
+/**
+ * Fetch function
+ *
+ * @param   Mixed    url   Absolute url or Request instance
+ * @param   Object   opts  Fetch options
+ * @return  Promise
+ */
+function fetch(url, opts) {
+
+	// allow custom promise
+	if (!fetch.Promise) {
+		throw new Error('native promise missing, set fetch.Promise to your favorite alternative');
+	}
+
+	Body.Promise = fetch.Promise;
+
+	// wrap http.request into fetch
+	return new fetch.Promise(function (resolve, reject) {
+		// build request object
+		const request = new Request(url, opts);
+		const options = getNodeRequestOptions(request);
+
+		const send = (options.protocol === 'https:' ? https : http).request;
+		const signal = request.signal;
+
+		let response = null;
+
+		const abort = function abort() {
+			let error = new AbortError('The user aborted a request.');
+			reject(error);
+			if (request.body && request.body instanceof Stream.Readable) {
+				destroyStream(request.body, error);
+			}
+			if (!response || !response.body) return;
+			response.body.emit('error', error);
+		};
+
+		if (signal && signal.aborted) {
+			abort();
+			return;
+		}
+
+		const abortAndFinalize = function abortAndFinalize() {
+			abort();
+			finalize();
+		};
+
+		// send request
+		const req = send(options);
+		let reqTimeout;
+
+		if (signal) {
+			signal.addEventListener('abort', abortAndFinalize);
+		}
+
+		function finalize() {
+			req.abort();
+			if (signal) signal.removeEventListener('abort', abortAndFinalize);
+			clearTimeout(reqTimeout);
+		}
+
+		if (request.timeout) {
+			req.once('socket', function (socket) {
+				reqTimeout = setTimeout(function () {
+					reject(new FetchError(`network timeout at: ${request.url}`, 'request-timeout'));
+					finalize();
+				}, request.timeout);
+			});
+		}
+
+		req.on('error', function (err) {
+			reject(new FetchError(`request to ${request.url} failed, reason: ${err.message}`, 'system', err));
+
+			if (response && response.body) {
+				destroyStream(response.body, err);
+			}
+
+			finalize();
+		});
+
+		fixResponseChunkedTransferBadEnding(req, function (err) {
+			if (signal && signal.aborted) {
+				return;
+			}
+
+			if (response && response.body) {
+				destroyStream(response.body, err);
+			}
+		});
+
+		/* c8 ignore next 18 */
+		if (parseInt(process.version.substring(1)) < 14) {
+			// Before Node.js 14, pipeline() does not fully support async iterators and does not always
+			// properly handle when the socket close/end events are out of order.
+			req.on('socket', function (s) {
+				s.addListener('close', function (hadError) {
+					// if a data listener is still present we didn't end cleanly
+					const hasDataListener = s.listenerCount('data') > 0;
+
+					// if end happened before close but the socket didn't emit an error, do it now
+					if (response && hasDataListener && !hadError && !(signal && signal.aborted)) {
+						const err = new Error('Premature close');
+						err.code = 'ERR_STREAM_PREMATURE_CLOSE';
+						response.body.emit('error', err);
+					}
+				});
+			});
+		}
+
+		req.on('response', function (res) {
+			clearTimeout(reqTimeout);
+
+			const headers = createHeadersLenient(res.headers);
+
+			// HTTP fetch step 5
+			if (fetch.isRedirect(res.statusCode)) {
+				// HTTP fetch step 5.2
+				const location = headers.get('Location');
+
+				// HTTP fetch step 5.3
+				let locationURL = null;
+				try {
+					locationURL = location === null ? null : new URL$1(location, request.url).toString();
+				} catch (err) {
+					// error here can only be invalid URL in Location: header
+					// do not throw when options.redirect == manual
+					// let the user extract the errorneous redirect URL
+					if (request.redirect !== 'manual') {
+						reject(new FetchError(`uri requested responds with an invalid redirect URL: ${location}`, 'invalid-redirect'));
+						finalize();
+						return;
+					}
+				}
+
+				// HTTP fetch step 5.5
+				switch (request.redirect) {
+					case 'error':
+						reject(new FetchError(`uri requested responds with a redirect, redirect mode is set to error: ${request.url}`, 'no-redirect'));
+						finalize();
+						return;
+					case 'manual':
+						// node-fetch-specific step: make manual redirect a bit easier to use by setting the Location header value to the resolved URL.
+						if (locationURL !== null) {
+							// handle corrupted header
+							try {
+								headers.set('Location', locationURL);
+							} catch (err) {
+								// istanbul ignore next: nodejs server prevent invalid response headers, we can't test this through normal request
+								reject(err);
+							}
+						}
+						break;
+					case 'follow':
+						// HTTP-redirect fetch step 2
+						if (locationURL === null) {
+							break;
+						}
+
+						// HTTP-redirect fetch step 5
+						if (request.counter >= request.follow) {
+							reject(new FetchError(`maximum redirect reached at: ${request.url}`, 'max-redirect'));
+							finalize();
+							return;
+						}
+
+						// HTTP-redirect fetch step 6 (counter increment)
+						// Create a new Request object.
+						const requestOpts = {
+							headers: new Headers(request.headers),
+							follow: request.follow,
+							counter: request.counter + 1,
+							agent: request.agent,
+							compress: request.compress,
+							method: request.method,
+							body: request.body,
+							signal: request.signal,
+							timeout: request.timeout,
+							size: request.size
+						};
+
+						if (!isDomainOrSubdomain(request.url, locationURL) || !isSameProtocol(request.url, locationURL)) {
+							for (const name of ['authorization', 'www-authenticate', 'cookie', 'cookie2']) {
+								requestOpts.headers.delete(name);
+							}
+						}
+
+						// HTTP-redirect fetch step 9
+						if (res.statusCode !== 303 && request.body && getTotalBytes(request) === null) {
+							reject(new FetchError('Cannot follow redirect with body being a readable stream', 'unsupported-redirect'));
+							finalize();
+							return;
+						}
+
+						// HTTP-redirect fetch step 11
+						if (res.statusCode === 303 || (res.statusCode === 301 || res.statusCode === 302) && request.method === 'POST') {
+							requestOpts.method = 'GET';
+							requestOpts.body = undefined;
+							requestOpts.headers.delete('content-length');
+						}
+
+						// HTTP-redirect fetch step 15
+						resolve(fetch(new Request(locationURL, requestOpts)));
+						finalize();
+						return;
+				}
+			}
+
+			// prepare response
+			res.once('end', function () {
+				if (signal) signal.removeEventListener('abort', abortAndFinalize);
+			});
+			let body = res.pipe(new PassThrough$1());
+
+			const response_options = {
+				url: request.url,
+				status: res.statusCode,
+				statusText: res.statusMessage,
+				headers: headers,
+				size: request.size,
+				timeout: request.timeout,
+				counter: request.counter
+			};
+
+			// HTTP-network fetch step 12.1.1.3
+			const codings = headers.get('Content-Encoding');
+
+			// HTTP-network fetch step 12.1.1.4: handle content codings
+
+			// in following scenarios we ignore compression support
+			// 1. compression support is disabled
+			// 2. HEAD request
+			// 3. no Content-Encoding header
+			// 4. no content response (204)
+			// 5. content not modified response (304)
+			if (!request.compress || request.method === 'HEAD' || codings === null || res.statusCode === 204 || res.statusCode === 304) {
+				response = new Response(body, response_options);
+				resolve(response);
+				return;
+			}
+
+			// For Node v6+
+			// Be less strict when decoding compressed responses, since sometimes
+			// servers send slightly invalid responses that are still accepted
+			// by common browsers.
+			// Always using Z_SYNC_FLUSH is what cURL does.
+			const zlibOptions = {
+				flush: zlib.Z_SYNC_FLUSH,
+				finishFlush: zlib.Z_SYNC_FLUSH
+			};
+
+			// for gzip
+			if (codings == 'gzip' || codings == 'x-gzip') {
+				body = body.pipe(zlib.createGunzip(zlibOptions));
+				response = new Response(body, response_options);
+				resolve(response);
+				return;
+			}
+
+			// for deflate
+			if (codings == 'deflate' || codings == 'x-deflate') {
+				// handle the infamous raw deflate response from old servers
+				// a hack for old IIS and Apache servers
+				const raw = res.pipe(new PassThrough$1());
+				raw.once('data', function (chunk) {
+					// see http://stackoverflow.com/questions/37519828
+					if ((chunk[0] & 0x0F) === 0x08) {
+						body = body.pipe(zlib.createInflate());
+					} else {
+						body = body.pipe(zlib.createInflateRaw());
+					}
+					response = new Response(body, response_options);
+					resolve(response);
+				});
+				raw.on('end', function () {
+					// some old IIS servers return zero-length OK deflate responses, so 'data' is never emitted.
+					if (!response) {
+						response = new Response(body, response_options);
+						resolve(response);
+					}
+				});
+				return;
+			}
+
+			// for br
+			if (codings == 'br' && typeof zlib.createBrotliDecompress === 'function') {
+				body = body.pipe(zlib.createBrotliDecompress());
+				response = new Response(body, response_options);
+				resolve(response);
+				return;
+			}
+
+			// otherwise, use response as-is
+			response = new Response(body, response_options);
+			resolve(response);
+		});
+
+		writeToStream(req, request);
+	});
+}
+function fixResponseChunkedTransferBadEnding(request, errorCallback) {
+	let socket;
+
+	request.on('socket', function (s) {
+		socket = s;
+	});
+
+	request.on('response', function (response) {
+		const headers = response.headers;
+
+		if (headers['transfer-encoding'] === 'chunked' && !headers['content-length']) {
+			response.once('close', function (hadError) {
+				// tests for socket presence, as in some situations the
+				// the 'socket' event is not triggered for the request
+				// (happens in deno), avoids `TypeError`
+				// if a data listener is still present we didn't end cleanly
+				const hasDataListener = socket && socket.listenerCount('data') > 0;
+
+				if (hasDataListener && !hadError) {
+					const err = new Error('Premature close');
+					err.code = 'ERR_STREAM_PREMATURE_CLOSE';
+					errorCallback(err);
+				}
+			});
+		}
+	});
+}
+
+function destroyStream(stream, err) {
+	if (stream.destroy) {
+		stream.destroy(err);
+	} else {
+		// node < 8
+		stream.emit('error', err);
+		stream.end();
+	}
+}
+
+/**
+ * Redirect code matching
+ *
+ * @param   Number   code  Status code
+ * @return  Boolean
+ */
+fetch.isRedirect = function (code) {
+	return code === 301 || code === 302 || code === 303 || code === 307 || code === 308;
+};
+
+// expose Promise
+fetch.Promise = global.Promise;
+
+export default fetch;
+export { Headers, Request, Response, FetchError, AbortError };
diff --git a/node_modules/node-fetch/package.json b/node_modules/node-fetch/package.json
new file mode 100644
index 0000000..e0be176
--- /dev/null
+++ b/node_modules/node-fetch/package.json
@@ -0,0 +1,89 @@
+{
+    "name": "node-fetch",
+    "version": "2.7.0",
+    "description": "A light-weight module that brings window.fetch to node.js",
+    "main": "lib/index.js",
+    "browser": "./browser.js",
+    "module": "lib/index.mjs",
+    "files": [
+        "lib/index.js",
+        "lib/index.mjs",
+        "lib/index.es.js",
+        "browser.js"
+    ],
+    "engines": {
+        "node": "4.x || >=6.0.0"
+    },
+    "scripts": {
+        "build": "cross-env BABEL_ENV=rollup rollup -c",
+        "prepare": "npm run build",
+        "test": "cross-env BABEL_ENV=test mocha --require babel-register --throw-deprecation test/test.js",
+        "report": "cross-env BABEL_ENV=coverage nyc --reporter lcov --reporter text mocha -R spec test/test.js",
+        "coverage": "cross-env BABEL_ENV=coverage nyc --reporter json --reporter text mocha -R spec test/test.js && codecov -f coverage/coverage-final.json"
+    },
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/bitinn/node-fetch.git"
+    },
+    "keywords": [
+        "fetch",
+        "http",
+        "promise"
+    ],
+    "author": "David Frank",
+    "license": "MIT",
+    "bugs": {
+        "url": "https://github.com/bitinn/node-fetch/issues"
+    },
+    "homepage": "https://github.com/bitinn/node-fetch",
+    "dependencies": {
+        "whatwg-url": "^5.0.0"
+    },
+    "peerDependencies": {
+        "encoding": "^0.1.0"
+    },
+    "peerDependenciesMeta": {
+        "encoding": {
+            "optional": true
+        }
+    },
+    "devDependencies": {
+        "@ungap/url-search-params": "^0.1.2",
+        "abort-controller": "^1.1.0",
+        "abortcontroller-polyfill": "^1.3.0",
+        "babel-core": "^6.26.3",
+        "babel-plugin-istanbul": "^4.1.6",
+        "babel-plugin-transform-async-generator-functions": "^6.24.1",
+        "babel-polyfill": "^6.26.0",
+        "babel-preset-env": "1.4.0",
+        "babel-register": "^6.16.3",
+        "chai": "^3.5.0",
+        "chai-as-promised": "^7.1.1",
+        "chai-iterator": "^1.1.1",
+        "chai-string": "~1.3.0",
+        "codecov": "3.3.0",
+        "cross-env": "^5.2.0",
+        "form-data": "^2.3.3",
+        "is-builtin-module": "^1.0.0",
+        "mocha": "^5.0.0",
+        "nyc": "11.9.0",
+        "parted": "^0.1.1",
+        "promise": "^8.0.3",
+        "resumer": "0.0.0",
+        "rollup": "^0.63.4",
+        "rollup-plugin-babel": "^3.0.7",
+        "string-to-arraybuffer": "^1.0.2",
+        "teeny-request": "3.7.0"
+    },
+    "release": {
+        "branches": [
+            "+([0-9]).x",
+            "main",
+            "next",
+            {
+                "name": "beta",
+                "prerelease": true
+            }
+        ]
+    }
+}
diff --git a/node_modules/node-gyp/.github/ISSUE_TEMPLATE.md b/node_modules/node-gyp/.github/ISSUE_TEMPLATE.md
new file mode 100644
index 0000000..c6b213d
--- /dev/null
+++ b/node_modules/node-gyp/.github/ISSUE_TEMPLATE.md
@@ -0,0 +1,52 @@
+<!--
+Thank you for reporting an issue!
+
+Remember, this issue tracker is for reporting issues ONLY with node-gyp.
+
+If you have an issue installing a specific module, please file an issue on
+that module's issue tracker (`npm issues modulename`). Open issue here only if
+you are sure this is an issue with node-gyp, not with the module you are
+trying to build.
+
+Fill out the form below. We probably won't investigate an issue that does not
+provide the basic information we require.
+
+-->
+
+Please look thru your error log for the string `gyp info using node-gyp@` and if the version number is less than the [current release of node-gyp](https://github.com/nodejs/node-gyp/releases) then __please upgrade__ using the instructions at https://github.com/nodejs/node-gyp/blob/master/docs/Updating-npm-bundled-node-gyp.md and try your command again.
+
+Requests for help with [`node-sass` are very common](https://github.com/nodejs/node-gyp/issues?q=label%3A%22Node+Sass+--%3E+Dart+Sass%22). Please be aware that this package is deprecated, you should seek alternatives and avoid opening new issues about it here.
+
+* **Node Version**: <!-- `node -v` and `npm -v` -->
+* **Platform**: <!-- `uname -a` (UNIX), or `systeminfo | findstr /B /C:"OS Name" /C:"OS Version" /C:"System Type"` (Windows) -->
+* **Compiler**: <!-- `cc -v` (UNIX) or `msbuild /version & cl` (Windows) -->
+* **Module**: <!-- what you tried to build/install -->
+
+<details><summary>Verbose output (from npm or node-gyp):</summary>
+
+```
+Paste your log here, between the backticks. It can be:
+  - npm --verbose output,
+  - or contents of npm-debug.log,
+  - or output of node-gyp rebuild --verbose.
+Include the command you were trying to run.
+
+This should look like this:
+
+>npm --verbose
+npm info it worked if it ends with ok
+npm verb cli [
+npm verb cli   'C:\\...\\node\\13.9.0\\x64\\node.exe',
+npm verb cli   'C:\\...\\node\\13.9.0\\x64\\node_modules\\npm\\bin\\npm-cli.js',
+npm verb cli   '--verbose'
+npm verb cli ]
+npm info using npm@6.13.7
+npm info using node@v13.9.0
+
+Usage: npm <command>
+(...)
+```
+
+</details>
+
+<!-- Any further details -->
diff --git a/node_modules/node-gyp/.github/PULL_REQUEST_TEMPLATE.md b/node_modules/node-gyp/.github/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 0000000..bcc4bb1
--- /dev/null
+++ b/node_modules/node-gyp/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,17 @@
+<!--
+Thank you for your pull request. Please review the below requirements.
+
+Contributor guide: https://github.com/nodejs/node/blob/master/CONTRIBUTING.md
+-->
+
+##### Checklist
+<!-- Remove items that do not apply. For completed items, change [ ] to [x]. -->
+
+- [ ] `npm install && npm test` passes
+- [ ] tests are included <!-- Bug fixes and new features should include tests -->
+- [ ] documentation is changed or added
+- [ ] commit message follows [commit guidelines](https://github.com/googleapis/release-please#how-should-i-write-my-commits)
+
+##### Description of change
+<!-- Provide a description of the change -->
+
diff --git a/node_modules/node-gyp/.github/workflows/release-please.yml b/node_modules/node-gyp/.github/workflows/release-please.yml
new file mode 100644
index 0000000..7d3cf9d
--- /dev/null
+++ b/node_modules/node-gyp/.github/workflows/release-please.yml
@@ -0,0 +1,56 @@
+name: release-please
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: google-github-actions/release-please-action@v2
+        id: release
+        with:
+          package-name: node-gyp
+          release-type: node
+          changelog-types: >
+            [{"type":"feat","section":"Features","hidden":false},
+            {"type":"fix","section":"Bug Fixes","hidden":false},
+            {"type":"bin","section":"Core","hidden":false},
+            {"type":"gyp","section":"Core","hidden":false},
+            {"type":"lib","section":"Core","hidden":false},
+            {"type":"src","section":"Core","hidden":false},
+            {"type":"test","section":"Tests","hidden":false},
+            {"type":"build","section":"Core","hidden":false},
+            {"type":"clean","section":"Core","hidden":false},
+            {"type":"configure","section":"Core","hidden":false},
+            {"type":"install","section":"Core","hidden":false},
+            {"type":"list","section":"Core","hidden":false},
+            {"type":"rebuild","section":"Core","hidden":false},
+            {"type":"remove","section":"Core","hidden":false},
+            {"type":"deps","section":"Core","hidden":false},
+            {"type":"python","section":"Core","hidden":false},
+            {"type":"lin","section":"Core","hidden":false},
+            {"type":"linux","section":"Core","hidden":false},
+            {"type":"mac","section":"Core","hidden":false},
+            {"type":"macos","section":"Core","hidden":false},
+            {"type":"win","section":"Core","hidden":false},
+            {"type":"windows","section":"Core","hidden":false},
+            {"type":"zos","section":"Core","hidden":false},
+            {"type":"doc","section":"Doc","hidden":false},
+            {"type":"docs","section":"Doc","hidden":false},
+            {"type":"readme","section":"Doc","hidden":false},
+            {"type":"chore","section":"Miscellaneous","hidden":false},
+            {"type":"refactor","section":"Miscellaneous","hidden":false},
+            {"type":"ci","section":"Miscellaneous","hidden":false},
+            {"type":"meta","section":"Miscellaneous","hidden":false}]
+
+          # Standard Conventional Commits: `feat` and `fix`
+          # node-gyp subdirectories: `bin`, `gyp`, `lib`, `src`, `test`
+          # node-gyp subcommands: `build`, `clean`, `configure`, `install`, `list`, `rebuild`, `remove`
+          # Core abstract category: `deps`
+          # Languages/platforms: `python`, `lin`, `linux`, `mac`, `macos`, `win`, `window`, `zos`
+          # Documentation: `doc`, `docs`, `readme`
+          # Standard Conventional Commits: `chore` (under "Miscellaneous")
+          # Miscellaneous abstract categories: `refactor`, `ci`, `meta`
diff --git a/node_modules/node-gyp/.github/workflows/tests.yml b/node_modules/node-gyp/.github/workflows/tests.yml
new file mode 100644
index 0000000..f7c9b97
--- /dev/null
+++ b/node_modules/node-gyp/.github/workflows/tests.yml
@@ -0,0 +1,45 @@
+# TODO: Line 43, enable pytest --doctest-modules
+
+name: Tests
+on: [push, pull_request]
+jobs:
+  Tests:
+    strategy:
+      fail-fast: false
+      max-parallel: 15
+      matrix:
+        node: [12.x, 14.x, 16.x]
+        python: ["3.6", "3.8", "3.10"]
+        os: [macos-latest, ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node }}
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node }}
+      - name: Use Python ${{ matrix.python }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python }}
+        env:
+          PYTHON_VERSION: ${{ matrix.python }}
+      - name: Install Dependencies
+        run: |
+          npm install --no-progress
+          pip install flake8 pytest
+      - name: Set Windows environment
+        if: matrix.os == 'windows-latest'
+        run: |
+          echo 'GYP_MSVS_VERSION=2015' >> $Env:GITHUB_ENV
+          echo 'GYP_MSVS_OVERRIDE_PATH=C:\\Dummy' >> $Env:GITHUB_ENV
+      - name: Lint Python
+        if: matrix.os == 'ubuntu-latest'
+        run: flake8 . --ignore=E203,W503  --max-complexity=101 --max-line-length=88 --show-source --statistics
+      - name: Run Python tests
+        run: python -m pytest
+      # - name: Run doctests with pytest
+      #   run: python -m pytest --doctest-modules
+      - name: Run Node tests
+        run: npm test
diff --git a/node_modules/node-gyp/.github/workflows/visual-studio.yml b/node_modules/node-gyp/.github/workflows/visual-studio.yml
new file mode 100644
index 0000000..6bb4574
--- /dev/null
+++ b/node_modules/node-gyp/.github/workflows/visual-studio.yml
@@ -0,0 +1,25 @@
+name: Tests on Windows
+on: [push, pull_request]
+jobs:
+  Tests:
+    strategy:
+      fail-fast: false
+      max-parallel: 15
+      matrix:
+        os: [windows-2022]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+      - name: Install Dependencies
+        run: |
+          npm install --no-progress
+      - name: Set Windows environment
+        if: matrix.os == 'windows-latest'
+        run: |
+          echo 'GYP_MSVS_VERSION=2015' >> $Env:GITHUB_ENV
+          echo 'GYP_MSVS_OVERRIDE_PATH=C:\\Dummy' >> $Env:GITHUB_ENV
+      - name: Environment Information
+        run: npx envinfo
+      - name: Run Node tests
+        run: npm test
diff --git a/node_modules/node-gyp/CHANGELOG.md b/node_modules/node-gyp/CHANGELOG.md
new file mode 100644
index 0000000..1e54fd6
--- /dev/null
+++ b/node_modules/node-gyp/CHANGELOG.md
@@ -0,0 +1,687 @@
+# Changelog
+
+### [8.4.1](https://www.github.com/nodejs/node-gyp/compare/v8.4.0...v8.4.1) (2021-11-19)
+
+
+### Bug Fixes
+
+* windows command missing space ([#2553](https://www.github.com/nodejs/node-gyp/issues/2553)) ([cc37b88](https://www.github.com/nodejs/node-gyp/commit/cc37b880690706d3c5d04d5a68c76c392a0a23ed))
+
+
+### Doc
+
+* fix typo in powershell node-gyp update ([787cf7f](https://www.github.com/nodejs/node-gyp/commit/787cf7f8e5ddd5039e02b64ace6b7b15e06fe0a4))
+
+
+### Core
+
+* npmlog@6.0.0 ([8083f6b](https://www.github.com/nodejs/node-gyp/commit/8083f6b855bd7f3326af04c5f5269fc28d7f2508))
+
+## [8.4.0](https://www.github.com/nodejs/node-gyp/compare/v8.3.0...v8.4.0) (2021-11-05)
+
+
+### Features
+
+* build with config.gypi from node headers ([a27dc08](https://www.github.com/nodejs/node-gyp/commit/a27dc08696911c6d81e76cc228697243069103c1))
+* support vs2022 ([#2533](https://www.github.com/nodejs/node-gyp/issues/2533)) ([5a00387](https://www.github.com/nodejs/node-gyp/commit/5a00387e5f8018264a1822f6c4d5dbf425f21cf6))
+
+## [8.3.0](https://www.github.com/nodejs/node-gyp/compare/v8.2.0...v8.3.0) (2021-10-11)
+
+
+### Features
+
+* **gyp:** update gyp to v0.10.0 ([#2521](https://www.github.com/nodejs/node-gyp/issues/2521)) ([5585792](https://www.github.com/nodejs/node-gyp/commit/5585792922a97f0629f143c560efd74470eae87f))
+
+
+### Tests
+
+* Python 3.10 was release on Oct. 4th ([#2504](https://www.github.com/nodejs/node-gyp/issues/2504)) ([0a67dcd](https://www.github.com/nodejs/node-gyp/commit/0a67dcd1307f3560495219253241eafcbf4e2a69))
+
+
+### Miscellaneous
+
+* **deps:** bump make-fetch-happen from 8.0.14 to 9.1.0 ([b05b4fe](https://www.github.com/nodejs/node-gyp/commit/b05b4fe9891f718f40edf547e9b50e982826d48a))
+* refactor the creation of config.gypi file ([f2ad87f](https://www.github.com/nodejs/node-gyp/commit/f2ad87ff65f98ad66daa7225ad59d99b759a2b07))
+
+## [8.2.0](https://www.github.com/nodejs/node-gyp/compare/v8.1.0...v8.2.0) (2021-08-23)
+
+
+### Features
+
+* **gyp:** update gyp to v0.9.6 ([#2481](https://www.github.com/nodejs/node-gyp/issues/2481)) ([ed9a9ed](https://www.github.com/nodejs/node-gyp/commit/ed9a9ed653a17c84afa3c327161992d0da7d0cea))
+
+
+### Bug Fixes
+
+* add error arg back into catch block for older Node.js users ([5cde818](https://www.github.com/nodejs/node-gyp/commit/5cde818aac715477e9e9747966bb6b4c4ed070a8))
+* change default gyp update message ([#2420](https://www.github.com/nodejs/node-gyp/issues/2420)) ([cfd12ff](https://www.github.com/nodejs/node-gyp/commit/cfd12ff3bb0eb4525173413ef6a94b3cd8398cad))
+* doc how to update node-gyp independently from npm ([c8c0af7](https://www.github.com/nodejs/node-gyp/commit/c8c0af72e78141a02b5da4cd4d704838333a90bd))
+* missing spaces ([f0882b1](https://www.github.com/nodejs/node-gyp/commit/f0882b1264b2fa701adbc81a3be0b3cba80e333d))
+
+
+### Core
+
+* deep-copy process.config during configure ([#2368](https://www.github.com/nodejs/node-gyp/issues/2368)) ([5f1a06c](https://www.github.com/nodejs/node-gyp/commit/5f1a06c50f3b0c3d292f64948f85a004cfcc5c87))
+
+
+### Miscellaneous
+
+* **deps:** bump tar from 6.1.0 to 6.1.2 ([#2474](https://www.github.com/nodejs/node-gyp/issues/2474)) ([ec15a3e](https://www.github.com/nodejs/node-gyp/commit/ec15a3e5012004172713c11eebcc9d852d32d380))
+* fix typos discovered by codespell ([#2442](https://www.github.com/nodejs/node-gyp/issues/2442)) ([2d0ce55](https://www.github.com/nodejs/node-gyp/commit/2d0ce5595e232a3fc7c562cdf39efb77e2312cc1))
+* GitHub Actions Test on node: [12.x, 14.x, 16.x] ([#2439](https://www.github.com/nodejs/node-gyp/issues/2439)) ([b7bccdb](https://www.github.com/nodejs/node-gyp/commit/b7bccdb527d93b0bb0ce99713f083ce2985fe85c))
+
+
+### Doc
+
+* correct link to "binding.gyp files out in the wild" ([#2483](https://www.github.com/nodejs/node-gyp/issues/2483)) ([660dd7b](https://www.github.com/nodejs/node-gyp/commit/660dd7b2a822c184be8027b300e68be67b366772))
+* **wiki:** Add a link to the node-midi binding.gyp file. ([b354711](https://www.github.com/nodejs/node-gyp/commit/b3547115f6e356358138310e857c7f1ec627a8a7))
+* **wiki:** add bcrypt ([e199cfa](https://www.github.com/nodejs/node-gyp/commit/e199cfa8fc6161492d2a6ade2190510d0ebf7c0f))
+* **wiki:** Add helpful information ([4eda827](https://www.github.com/nodejs/node-gyp/commit/4eda8275c03dae6d2f5c40f3c1dbe930d84b0f2b))
+* **wiki:** Add node-canvas ([13a9553](https://www.github.com/nodejs/node-gyp/commit/13a955317b39caf98fd1f412d8d3f41599e979fd))
+* **wiki:** Add node-openvg-canvas and node-openvg. ([61f709e](https://www.github.com/nodejs/node-gyp/commit/61f709ec4d9f256a6467e9ff84430a48eeb629d1))
+* **wiki:** add one more example ([77f3632](https://www.github.com/nodejs/node-gyp/commit/77f363272930d3d4d24fd3973be22e6237128fcc))
+* **wiki:** add topcube, node-osmium, and node-osrm ([1a75d2b](https://www.github.com/nodejs/node-gyp/commit/1a75d2bf2f562ba50846893a516e111cfbb50885))
+* **wiki:** Added details for properly fixing ([3d4d9d5](https://www.github.com/nodejs/node-gyp/commit/3d4d9d52d6b5b49de06bb0bb5b68e2686d2b7ebd))
+* **wiki:** Added Ghostscript4JS ([bf4bed1](https://www.github.com/nodejs/node-gyp/commit/bf4bed1b96a7d22fba6f97f4552ad09f32ac3737))
+* **wiki:** added levelup ([1575bce](https://www.github.com/nodejs/node-gyp/commit/1575bce3a53db628bfb023fd6f3258fdf98c3195))
+* **wiki:** Added nk-mysql (nodamysql) ([5b4f2d0](https://www.github.com/nodejs/node-gyp/commit/5b4f2d0e1d5d3eadfd03aaf9c1668340f76c4bea))
+* **wiki:** Added nk-xrm-installer .gyp references, including .py scripts for providing complete reference to examples of fetching source via http, extracting, and moving files (as opposed to copying) ([ceb3088](https://www.github.com/nodejs/node-gyp/commit/ceb30885b74f6789374ef52267b84767be93ebe4))
+* **wiki:** Added tip about resolving frustrating LNK1181 error ([e64798d](https://www.github.com/nodejs/node-gyp/commit/e64798de8cac6031ad598a86d7599e81b4d20b17))
+* **wiki:** ADDED: Node.js binding to OpenCV ([e2dc777](https://www.github.com/nodejs/node-gyp/commit/e2dc77730b09d7ee8682d7713a7603a2d7aacabd))
+* **wiki:** Adding link to node-cryptopp's gyp file ([875adbe](https://www.github.com/nodejs/node-gyp/commit/875adbe2a4669fa5f2be0250ffbf98fb55e800fd))
+* **wiki:** Adding the sharp library to the list ([9dce0e4](https://www.github.com/nodejs/node-gyp/commit/9dce0e41650c3fa973e6135a79632d022c662a1d))
+* **wiki:** Adds node-fann ([23e3d48](https://www.github.com/nodejs/node-gyp/commit/23e3d485ed894ba7c631e9c062f5e366b50c416c))
+* **wiki:** Adds node-inotify and v8-profiler ([b6e542f](https://www.github.com/nodejs/node-gyp/commit/b6e542f644dbbfe22b88524ec500696e06ee4af7))
+* **wiki:** Bumping Python version from 2.3 to 2.7 as per the node-gyp readme ([55ebd6e](https://www.github.com/nodejs/node-gyp/commit/55ebd6ebacde975bf84f7bf4d8c66e64cc7cd0da))
+* **wiki:** C++ build tools version upgraded ([5b899b7](https://www.github.com/nodejs/node-gyp/commit/5b899b70db729c392ced7c98e8e17590c6499fc3))
+* **wiki:** change bcrypt url to binding.gyp file ([e11bdd8](https://www.github.com/nodejs/node-gyp/commit/e11bdd84de6144492d3eb327d67cbf2d62da1a76))
+* **wiki:** Clarification + direct link to VS2010 ([531c724](https://www.github.com/nodejs/node-gyp/commit/531c724561d947b5d870de8d52dd8c3c51c5ec2d))
+* **wiki:** Correcting the link to node-osmium ([fae7516](https://www.github.com/nodejs/node-gyp/commit/fae7516a1d2829b6e234eaded74fb112ebd79a05))
+* **wiki:** Created "binding.gyp" files out in the wild (markdown) ([d4fd143](https://www.github.com/nodejs/node-gyp/commit/d4fd14355bbe57f229f082f47bb2b3670868203f))
+* **wiki:** Created Common issues (markdown) ([a38299e](https://www.github.com/nodejs/node-gyp/commit/a38299ea340ceb0e732c6dc6a1b4760257644839))
+* **wiki:** Created Error: "pre" versions of node cannot be installed (markdown) ([98bc80d](https://www.github.com/nodejs/node-gyp/commit/98bc80d7a62ba70c881f3c39d94f804322e57852))
+* **wiki:** Created Linking to OpenSSL (markdown) ([c46d00d](https://www.github.com/nodejs/node-gyp/commit/c46d00d83bac5173dea8bbbb175a1a7de74fdaca))
+* **wiki:** Created Updating npm's bundled node gyp (markdown) ([e0ac8d1](https://www.github.com/nodejs/node-gyp/commit/e0ac8d15af46aadd1c220599e63199b154a514e6))
+* **wiki:** Created use of undeclared identifier 'TypedArray' (markdown) ([65ba711](https://www.github.com/nodejs/node-gyp/commit/65ba71139e9b7f64ac823e575ee9dbf17d937ce4))
+* **wiki:** Created Visual Studio 2010 Setup (markdown) ([5b80e83](https://www.github.com/nodejs/node-gyp/commit/5b80e834c8f79dda9fb2770a876ff3cf649c06f3))
+* **wiki:** Created Visual studio 2012 setup (markdown) ([becef31](https://www.github.com/nodejs/node-gyp/commit/becef316b6c46a33e783667720ee074a0141d1a5))
+* **wiki:** Destroyed Visual Studio 2010 Setup (markdown) ([93423b4](https://www.github.com/nodejs/node-gyp/commit/93423b43606de9664aeb79635825f5e9941ec9bc))
+* **wiki:** Destroyed Visual studio 2012 setup (markdown) ([3601508](https://www.github.com/nodejs/node-gyp/commit/3601508bb10fa05da0ddc7e70d57e4b4dd679657))
+* **wiki:** Different commands for Windows npm v6 vs. v7 ([0fce46b](https://www.github.com/nodejs/node-gyp/commit/0fce46b53340c85e8091cde347d5ed23a443c82f))
+* **wiki:** Drop  in favor of ([9285ff6](https://www.github.com/nodejs/node-gyp/commit/9285ff6e451c52c070a05f05f0a9602621d91d53))
+* **wiki:** Explicit link to Visual C++ 2010 Express ([378c363](https://www.github.com/nodejs/node-gyp/commit/378c3632f02c096ed819ec8f2611c65bef0c0554))
+* **wiki:** fix link to gyp file used to build libsqlite3 ([54db8d7](https://www.github.com/nodejs/node-gyp/commit/54db8d7ac33e3f98220960b5d86cfa18a75b53cb))
+* **wiki:** Fix link to node-zipfile ([92e49a8](https://www.github.com/nodejs/node-gyp/commit/92e49a858ed69cb4847a26a5676ab56ef5e2de33))
+* **wiki:** fixed node-serialport link ([954ee53](https://www.github.com/nodejs/node-gyp/commit/954ee530b3972d1db591fce32368e4e31b5a25d8))
+* **wiki:** I highly missing it in common issue as every windows biggner face that issue ([d617fae](https://www.github.com/nodejs/node-gyp/commit/d617faee29c40871ca5c8f93efd0ce929a40d541))
+* **wiki:** if ouns that the -h did not help. I founs on github that there was support for visual studio 2015, while i couldn't install node-red beacuse it kept telling me the key 2015 was missing. looking in he gyp python code i found the local file was bot up t dat with the github repo. updating took several efforts before i tried to drop the -g option. ([408b72f](https://www.github.com/nodejs/node-gyp/commit/408b72f561329408daeb17834436e381406efcc8))
+* **wiki:** If permissions error, please try  and then the command. ([ee8e1c1](https://www.github.com/nodejs/node-gyp/commit/ee8e1c1e5334096d58e0d6bca6c006f2ee9c88cb))
+* **wiki:** Improve Unix instructions ([c3e5487](https://www.github.com/nodejs/node-gyp/commit/c3e548736645b535ea5bce613d74ca3e98598243))
+* **wiki:** link to docs/ from README ([b52e487](https://www.github.com/nodejs/node-gyp/commit/b52e487eac1eb421573d1e67114a242eeff45a00))
+* **wiki:** Lower case L ([3aa2c6b](https://www.github.com/nodejs/node-gyp/commit/3aa2c6bdb07971b87505e32e32548d75264bd19f))
+* **wiki:** Make changes discussed in https://github.com/nodejs/node-gyp/issues/2416 ([1dcad87](https://www.github.com/nodejs/node-gyp/commit/1dcad873539027511a5f0243baf770ea90f6f4e2))
+* **wiki:** move wiki docs into doc/ ([f0a4835](https://www.github.com/nodejs/node-gyp/commit/f0a48355d86534ec3bdabcdb3ce3340fa2e17f39))
+* **wiki:** node-sass in the wild ([d310a73](https://www.github.com/nodejs/node-gyp/commit/d310a73d64d0065050377baac7047472f7424a1b))
+* **wiki:** node-srs was a 404 ([bbca21a](https://www.github.com/nodejs/node-gyp/commit/bbca21a1e1ede4c473aff365ca71989a5bda7b57))
+* **wiki:** Note: VS2010 seems to be no longer available!  VS2013 or nothing! ([7b5dcaf](https://www.github.com/nodejs/node-gyp/commit/7b5dcafafccdceae4b8f2b53ac9081a694b6ade8))
+* **wiki:** safer doc names, remove unnecessary TypedArray doc ([161c235](https://www.github.com/nodejs/node-gyp/commit/161c2353ef5b562f4acfb2fd77608fcbd0800fc0))
+* **wiki:** sorry, forgot to mention a specific windows version. ([d69dffc](https://www.github.com/nodejs/node-gyp/commit/d69dffc16c2b1e3c60dcb5d1c35a49270ba22a35))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([7444b47](https://www.github.com/nodejs/node-gyp/commit/7444b47a7caac1e14d1da474a7fcfcf88d328017))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([d766b74](https://www.github.com/nodejs/node-gyp/commit/d766b7427851e6c2edc02e2504a7be9be7e330c0))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([d319b0e](https://www.github.com/nodejs/node-gyp/commit/d319b0e98c7085de8e51bc5595eba4264b99a7d5))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([3c6692d](https://www.github.com/nodejs/node-gyp/commit/3c6692d538f0ce973869aa237118b7d2483feccd))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([93392d5](https://www.github.com/nodejs/node-gyp/commit/93392d559ce6f250b9c7fe8177e6c88603809dc1))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([8841158](https://www.github.com/nodejs/node-gyp/commit/88411588f300e9b7c00fe516ecd977a1feeeb15c))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([81bfa1f](https://www.github.com/nodejs/node-gyp/commit/81bfa1f1b63d522a9f8a9ae9ca0c7ae90fe75140))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([d1cd237](https://www.github.com/nodejs/node-gyp/commit/d1cd237bad06fa507adb354b9e2181a14dc63d24))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([3de9e17](https://www.github.com/nodejs/node-gyp/commit/3de9e17e0b8a387eafe7bd18d0ec1e3191d118e8))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([a9b7096](https://www.github.com/nodejs/node-gyp/commit/a9b70968fb956eab3b95672048b94350e1565ca3))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([3236069](https://www.github.com/nodejs/node-gyp/commit/3236069689e7e0eb15b324fce74ab58158956f98))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([1462755](https://www.github.com/nodejs/node-gyp/commit/14627556966e5d513bdb8e5208f0e1300f68991f))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([7ab1337](https://www.github.com/nodejs/node-gyp/commit/7ab133752a6c402bb96dcd3d671d73e03e9487ad))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([640895d](https://www.github.com/nodejs/node-gyp/commit/640895d36b7448c646a3b850c1e159106f83c724))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([ced8c96](https://www.github.com/nodejs/node-gyp/commit/ced8c968457f285ab8989c291d28173d7730833c))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([27b883a](https://www.github.com/nodejs/node-gyp/commit/27b883a350ad0db6b9130d7b996f35855ec34c7a))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([d29fb13](https://www.github.com/nodejs/node-gyp/commit/d29fb134f1c4b9dd729ba95f2979e69e0934809f))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([2765891](https://www.github.com/nodejs/node-gyp/commit/27658913e6220cf0371b4b73e25a0e4ab11108a1))
+* **wiki:** Updated "binding.gyp" files out in the wild (markdown) ([dc97766](https://www.github.com/nodejs/node-gyp/commit/dc9776648d432bca6775c176641f16da14522d4c))
+* **wiki:** Updated Error: "pre" versions of node cannot be installed (markdown) ([e9f8b33](https://www.github.com/nodejs/node-gyp/commit/e9f8b33d1f87d04f22cb09a814d7c55d0fa38446))
+* **wiki:** Updated Home (markdown) ([3407109](https://www.github.com/nodejs/node-gyp/commit/3407109325cf7ba1e925656b9eb75feffab0557c))
+* **wiki:** Updated Home (markdown) ([6e392bc](https://www.github.com/nodejs/node-gyp/commit/6e392bcdd3dd1691773e6e16e1dffc35931b81e0))
+* **wiki:** Updated Home (markdown) ([65efe32](https://www.github.com/nodejs/node-gyp/commit/65efe32ccb8d446ce569453364f922dd9d27c945))
+* **wiki:** Updated Home (markdown) ([ea28f09](https://www.github.com/nodejs/node-gyp/commit/ea28f0947af91fa638be355143f5df89d2e431c8))
+* **wiki:** Updated Home (markdown) ([0e37ff4](https://www.github.com/nodejs/node-gyp/commit/0e37ff48b306c12149661b375895741d3d710da7))
+* **wiki:** Updated Home (markdown) ([b398ef4](https://www.github.com/nodejs/node-gyp/commit/b398ef46f660d2b1506508550dadfb4c35639e4b))
+* **wiki:** Updated Linking to OpenSSL (markdown) ([8919028](https://www.github.com/nodejs/node-gyp/commit/8919028921fd304f08044098434f0dc6071fb7cf))
+* **wiki:** Updated Linking to OpenSSL (markdown) ([c00eb77](https://www.github.com/nodejs/node-gyp/commit/c00eb778fc7dc27e4dab3a9219035ea20458b33b))
+* **wiki:** Updated node-levelup to node-leveldown (broken links) ([59668bb](https://www.github.com/nodejs/node-gyp/commit/59668bb0b904feccf3c09afa2fd37378c77af967))
+* **wiki:** Updated Updating npm's bundled node gyp (markdown) ([d314854](https://www.github.com/nodejs/node-gyp/commit/d31485415ef69d46effa6090c95698341965de1b))
+* **wiki:** Updated Updating npm's bundled node gyp (markdown) ([11858b0](https://www.github.com/nodejs/node-gyp/commit/11858b0655d1eee00c62ad628e719d4378803d14))
+* **wiki:** Updated Updating npm's bundled node gyp (markdown) ([33561e9](https://www.github.com/nodejs/node-gyp/commit/33561e9cbf5f4eb46111318503c77df2c6eb484a))
+* **wiki:** Updated Updating npm's bundled node gyp (markdown) ([4a7f2d0](https://www.github.com/nodejs/node-gyp/commit/4a7f2d0d869a65c99a78504976567017edadf657))
+* **wiki:** Updated Updating npm's bundled node gyp (markdown) ([979a706](https://www.github.com/nodejs/node-gyp/commit/979a7063b950c088a7f4896fc3a48e1d00dfd231))
+* **wiki:** Updated Updating npm's bundled node gyp (markdown) ([e50e04d](https://www.github.com/nodejs/node-gyp/commit/e50e04d7b6a3754ea0aa11fe8cef491b3bc5bdd4))
+
+## [8.1.0](https://www.github.com/nodejs/node-gyp/compare/v8.0.0...v8.1.0) (2021-05-28)
+
+
+### Features
+
+* **gyp:** update gyp to v0.9.1 ([#2402](https://www.github.com/nodejs/node-gyp/issues/2402)) ([814b1b0](https://www.github.com/nodejs/node-gyp/commit/814b1b0eda102afb9fc87e81638a9cf5b650bb10))
+
+
+### Miscellaneous
+
+* add `release-please-action` for automated releases ([#2395](https://www.github.com/nodejs/node-gyp/issues/2395)) ([07e9d7c](https://www.github.com/nodejs/node-gyp/commit/07e9d7c7ee80ba119ea760c635f72fd8e7efe198))
+
+
+### Core
+
+* fail gracefully if we can't find the username ([#2375](https://www.github.com/nodejs/node-gyp/issues/2375)) ([fca4795](https://www.github.com/nodejs/node-gyp/commit/fca4795512c67dc8420aaa0d913b5b89a4b147f3))
+* log as yes/no whether build dir was created ([#2370](https://www.github.com/nodejs/node-gyp/issues/2370)) ([245dee5](https://www.github.com/nodejs/node-gyp/commit/245dee5b62581309946872ae253226ea3a42c0e3))
+
+
+### Doc
+
+* fix v8.0.0 release date ([4b83c3d](https://www.github.com/nodejs/node-gyp/commit/4b83c3de7300457919d53f26d96ea9ad6f6bedd8))
+* remove redundant version info ([#2403](https://www.github.com/nodejs/node-gyp/issues/2403)) ([1423670](https://www.github.com/nodejs/node-gyp/commit/14236709de64b100a424396b91a5115639daa0ef))
+* Update README.md Visual Studio Community page polski to auto ([#2371](https://www.github.com/nodejs/node-gyp/issues/2371)) ([1b4697a](https://www.github.com/nodejs/node-gyp/commit/1b4697abf69ef574a48faf832a7098f4c6c224a5))
+
+## v8.0.0 2021-04-03
+
+* [[`0d8a6f1b19`](https://github.com/nodejs/node-gyp/commit/0d8a6f1b19)] - **ci**: update actions/setup-node to v2 (#2302) (Sora Morimoto) [#2302](https://github.com/nodejs/node-gyp/pull/2302)
+* [[`15a5c7d45b`](https://github.com/nodejs/node-gyp/commit/15a5c7d45b)] - **ci**: migrate deprecated grammar (#2285) (Jiawen Geng) [#2285](https://github.com/nodejs/node-gyp/pull/2285)
+* [[`06ddde27f9`](https://github.com/nodejs/node-gyp/commit/06ddde27f9)] - **deps**: sync mutual dependencies with npm (DeeDeeG) [#2348](https://github.com/nodejs/node-gyp/pull/2348)
+* [[`a5fd1f41e3`](https://github.com/nodejs/node-gyp/commit/a5fd1f41e3)] - **doc**: add downloads badge (#2352) (Jiawen Geng) [#2352](https://github.com/nodejs/node-gyp/pull/2352)
+* [[`cc1cbce056`](https://github.com/nodejs/node-gyp/commit/cc1cbce056)] - **doc**: update macOS\_Catalina.md (#2293) (iMrLopez) [#2293](https://github.com/nodejs/node-gyp/pull/2293)
+* [[`6287118fc4`](https://github.com/nodejs/node-gyp/commit/6287118fc4)] - **doc**: updated README.md to copy easily (#2281) (மனோஜ்குமார் பழனிச்சாமி) [#2281](https://github.com/nodejs/node-gyp/pull/2281)
+* [[`66c0f04467`](https://github.com/nodejs/node-gyp/commit/66c0f04467)] - **doc**: add missing `sudo` to Catalina doc (Karl Horky) [#2244](https://github.com/nodejs/node-gyp/pull/2244)
+* [[`0da2e0140d`](https://github.com/nodejs/node-gyp/commit/0da2e0140d)] - **gyp**: update gyp to v0.8.1 (#2355) (DeeDeeG) [#2355](https://github.com/nodejs/node-gyp/pull/2355)
+* [[`0093ec8646`](https://github.com/nodejs/node-gyp/commit/0093ec8646)] - **gyp**: Improve our flake8 linting tests (Christian Clauss) [#2356](https://github.com/nodejs/node-gyp/pull/2356)
+* [[`a78b584236`](https://github.com/nodejs/node-gyp/commit/a78b584236)] - **(SEMVER-MAJOR)** **gyp**: remove support for Python 2 (#2300) (Christian Clauss) [#2300](https://github.com/nodejs/node-gyp/pull/2300)
+* [[`c3c510d89e`](https://github.com/nodejs/node-gyp/commit/c3c510d89e)] - **gyp**: update gyp to v0.8.0 (#2318) (Christian Clauss) [#2318](https://github.com/nodejs/node-gyp/pull/2318)
+* [[`9e1397c52e`](https://github.com/nodejs/node-gyp/commit/9e1397c52e)] - **(SEMVER-MAJOR)** **gyp**: update gyp to v0.7.0 (#2284) (Jiawen Geng) [#2284](https://github.com/nodejs/node-gyp/pull/2284)
+* [[`1bd18f3e77`](https://github.com/nodejs/node-gyp/commit/1bd18f3e77)] - **(SEMVER-MAJOR)** **lib**: drop Python 2 support in find-python.js (#2333) (DeeDeeG) [#2333](https://github.com/nodejs/node-gyp/pull/2333)
+* [[`e81602ef55`](https://github.com/nodejs/node-gyp/commit/e81602ef55)] - **(SEMVER-MAJOR)** **lib**: migrate requests to fetch (#2220) (Matias Lopez) [#2220](https://github.com/nodejs/node-gyp/pull/2220)
+* [[`392b7760b4`](https://github.com/nodejs/node-gyp/commit/392b7760b4)] - **lib**: avoid changing process.config (#2322) (Michaël Zasso) [#2322](https://github.com/nodejs/node-gyp/pull/2322)
+
+## v7.1.2 2020-10-17
+
+* [[`096e3aded5`](https://github.com/nodejs/node-gyp/commit/096e3aded5)] - **gyp**: update gyp to 0.6.2 (Myles Borins) [#2241](https://github.com/nodejs/node-gyp/pull/2241)
+* [[`54f97cd243`](https://github.com/nodejs/node-gyp/commit/54f97cd243)] - **doc**: add cmd to reset `xcode-select` to initial state (Valera Rozuvan) [#2235](https://github.com/nodejs/node-gyp/pull/2235)
+
+## v7.1.1 2020-10-15
+
+This release restores the location of shared library builds to the pre-v7
+location. In v7.0.0 until this release, shared library outputs were placed
+in a lib.target subdirectory inside the build/{Release,Debug} directory for
+builds using `make` (Linux, etc.). This is inconsistent with macOS (Xcode)
+behavior and previous node-gyp behavior so has been reverted.
+We consider this a bug-fix rather than semver-major change.
+
+* [[`18bf2d1d38`](https://github.com/nodejs/node-gyp/commit/18bf2d1d38)] - **deps**: update deps to match npm@7 (Rod Vagg) [#2240](https://github.com/nodejs/node-gyp/pull/2240)
+* [[`ee6a837cb7`](https://github.com/nodejs/node-gyp/commit/ee6a837cb7)] - **gyp**: update gyp to 0.6.1 (Rod Vagg) [#2238](https://github.com/nodejs/node-gyp/pull/2238)
+* [[`3e7f8ccafc`](https://github.com/nodejs/node-gyp/commit/3e7f8ccafc)] - **lib**: better log message when ps fails (Martin Midtgaard) [#2229](https://github.com/nodejs/node-gyp/pull/2229)
+* [[`7fb314339f`](https://github.com/nodejs/node-gyp/commit/7fb314339f)] - **test**: GitHub Actions: Test on Python 3.9 (Christian Clauss) [#2230](https://github.com/nodejs/node-gyp/pull/2230)
+* [[`754996b9ec`](https://github.com/nodejs/node-gyp/commit/754996b9ec)] - **doc**: replace status badges with new Actions badge (Rod Vagg) [#2218](https://github.com/nodejs/node-gyp/pull/2218)
+* [[`2317dc400c`](https://github.com/nodejs/node-gyp/commit/2317dc400c)] - **ci**: switch to GitHub Actions (Shelley Vohr) [#2210](https://github.com/nodejs/node-gyp/pull/2210)
+* [[`2cca9b74f7`](https://github.com/nodejs/node-gyp/commit/2cca9b74f7)] - **doc**: drop the --production flag for installing windows-build-tools (DeeDeeG) [#2206](https://github.com/nodejs/node-gyp/pull/2206)
+
+## v7.1.0 2020-08-12
+
+* [[`aaf33c3029`](https://github.com/nodejs/node-gyp/commit/aaf33c3029)] - **build**: add update-gyp script (Samuel Attard) [#2167](https://github.com/nodejs/node-gyp/pull/2167)
+* * [[`3baa4e4172`](https://github.com/nodejs/node-gyp/commit/3baa4e4172)] - **(SEMVER-MINOR)** **gyp**: update gyp to 0.4.0 (Samuel Attard) [#2165](https://github.com/nodejs/node-gyp/pull/2165)
+* * [[`f461d56c53`](https://github.com/nodejs/node-gyp/commit/f461d56c53)] - **(SEMVER-MINOR)** **build**: support apple silicon (arm64 darwin) builds (Samuel Attard) [#2165](https://github.com/nodejs/node-gyp/pull/2165)
+* * [[`ee6fa7d3bc`](https://github.com/nodejs/node-gyp/commit/ee6fa7d3bc)] - **docs**: note that node-gyp@7 should solve Catalina CLT issues (Rod Vagg) [#2156](https://github.com/nodejs/node-gyp/pull/2156)
+* * [[`4fc8ff179d`](https://github.com/nodejs/node-gyp/commit/4fc8ff179d)] - **doc**: silence curl for macOS Catalina acid test (Chia Wei Ong) [#2150](https://github.com/nodejs/node-gyp/pull/2150)
+* * [[`7857cb2eb1`](https://github.com/nodejs/node-gyp/commit/7857cb2eb1)] - **deps**: increase "engines" to "node" : "\>= 10.12.0" (DeeDeeG) [#2153](https://github.com/nodejs/node-gyp/pull/2153)
+
+## v7.0.0 2020-06-03
+
+* [[`e18a61afc1`](https://github.com/nodejs/node-gyp/commit/e18a61afc1)] - **build**: shrink bloated addon binaries on windows (Shelley Vohr) [#2060](https://github.com/nodejs/node-gyp/pull/2060)
+* [[`4937722cf5`](https://github.com/nodejs/node-gyp/commit/4937722cf5)] - **(SEMVER-MAJOR)** **deps**: replace mkdirp with {recursive} mkdir (Rod Vagg) [#2123](https://github.com/nodejs/node-gyp/pull/2123)
+* [[`d45438a047`](https://github.com/nodejs/node-gyp/commit/d45438a047)] - **(SEMVER-MAJOR)** **deps**: update deps, match to npm@7 (Rod Vagg) [#2126](https://github.com/nodejs/node-gyp/pull/2126)
+* [[`ba4f34b7d6`](https://github.com/nodejs/node-gyp/commit/ba4f34b7d6)] - **doc**: update catalina xcode clt download link (Dario Vladovic) [#2133](https://github.com/nodejs/node-gyp/pull/2133)
+* [[`f7bfce96ed`](https://github.com/nodejs/node-gyp/commit/f7bfce96ed)] - **doc**: update acid test and introduce curl|bash test script (Dario Vladovic) [#2105](https://github.com/nodejs/node-gyp/pull/2105)
+* [[`e529f3309d`](https://github.com/nodejs/node-gyp/commit/e529f3309d)] - **doc**: update README to reflect upgrade to gyp-next (Ujjwal Sharma) [#2092](https://github.com/nodejs/node-gyp/pull/2092)
+* [[`9aed6286a3`](https://github.com/nodejs/node-gyp/commit/9aed6286a3)] - **doc**: give more attention to Catalina issues doc (Matheus Marchini) [#2134](https://github.com/nodejs/node-gyp/pull/2134)
+* [[`963f2a7b48`](https://github.com/nodejs/node-gyp/commit/963f2a7b48)] - **doc**: improve Catalina discoverability for search engines (Matheus Marchini) [#2135](https://github.com/nodejs/node-gyp/pull/2135)
+* [[`7b75af349b`](https://github.com/nodejs/node-gyp/commit/7b75af349b)] - **doc**: add macOS Catalina software update info (Karl Horky) [#2078](https://github.com/nodejs/node-gyp/pull/2078)
+* [[`4f23c7bee2`](https://github.com/nodejs/node-gyp/commit/4f23c7bee2)] - **doc**: update link to the code of conduct (#2073) (Michaël Zasso) [#2073](https://github.com/nodejs/node-gyp/pull/2073)
+* [[`473cfa283f`](https://github.com/nodejs/node-gyp/commit/473cfa283f)] - **doc**: note in README that Python 3.8 is supported (#2072) (Michaël Zasso) [#2072](https://github.com/nodejs/node-gyp/pull/2072)
+* [[`e7402b4a7c`](https://github.com/nodejs/node-gyp/commit/e7402b4a7c)] - **doc**: update catalina xcode cli tools download link (#2044) (Dario Vladović) [#2044](https://github.com/nodejs/node-gyp/pull/2044)
+* [[`35de45984f`](https://github.com/nodejs/node-gyp/commit/35de45984f)] - **doc**: update catalina xcode cli tools download link; formatting (Jonathan Hult) [#2034](https://github.com/nodejs/node-gyp/pull/2034)
+* [[`48642191f5`](https://github.com/nodejs/node-gyp/commit/48642191f5)] - **doc**: add download link for Command Line Tools for Xcode (Przemysław Bitkowski) [#2029](https://github.com/nodejs/node-gyp/pull/2029)
+* [[`ae5b150051`](https://github.com/nodejs/node-gyp/commit/ae5b150051)] - **doc**: Catalina suggestion: remove /Library/Developer/CommandLineTools (Christian Clauss) [#2022](https://github.com/nodejs/node-gyp/pull/2022)
+* [[`d1dea13fe4`](https://github.com/nodejs/node-gyp/commit/d1dea13fe4)] - **doc**: fix changelog 6.1.0 release year to be 2020 (Quentin Vernot) [#2021](https://github.com/nodejs/node-gyp/pull/2021)
+* [[`6356117b08`](https://github.com/nodejs/node-gyp/commit/6356117b08)] - **doc, bin**: stop suggesting opening  node-gyp issues (Bartosz Sosnowski) [#2096](https://github.com/nodejs/node-gyp/pull/2096)
+* [[`a6b76a8b48`](https://github.com/nodejs/node-gyp/commit/a6b76a8b48)] - **gyp**: update gyp to 0.2.1 (Ujjwal Sharma) [#2092](https://github.com/nodejs/node-gyp/pull/2092)
+* [[`ebc34ec823`](https://github.com/nodejs/node-gyp/commit/ebc34ec823)] - **gyp**: update gyp to 0.2.0 (Ujjwal Sharma) [#2092](https://github.com/nodejs/node-gyp/pull/2092)
+* [[`972780bde7`](https://github.com/nodejs/node-gyp/commit/972780bde7)] - **(SEMVER-MAJOR)** **gyp**: sync code base with nodejs repo (#1975) (Michaël Zasso) [#1975](https://github.com/nodejs/node-gyp/pull/1975)
+* [[`c255ffbf6a`](https://github.com/nodejs/node-gyp/commit/c255ffbf6a)] - **lib**: drop "-2" flag for "py.exe" launcher (DeeDeeG) [#2131](https://github.com/nodejs/node-gyp/pull/2131)
+* [[`1f7e1e93b5`](https://github.com/nodejs/node-gyp/commit/1f7e1e93b5)] - **lib**: ignore VS instances that cause COMExceptions (Andrew Casey) [#2018](https://github.com/nodejs/node-gyp/pull/2018)
+* [[`741ab096d5`](https://github.com/nodejs/node-gyp/commit/741ab096d5)] - **test**: remove support for EOL versions of Node.js (Shelley Vohr)
+* [[`ca86ef2539`](https://github.com/nodejs/node-gyp/commit/ca86ef2539)] - **test**: bump actions/checkout from v1 to v2 (BSKY) [#2063](https://github.com/nodejs/node-gyp/pull/2063)
+
+## v6.1.0 2020-01-08
+
+* [[`9a7dd16b76`](https://github.com/nodejs/node-gyp/commit/9a7dd16b76)] - **doc**: remove backticks from Python version list (Rod Vagg) [#2011](https://github.com/nodejs/node-gyp/pull/2011)
+* [[`26cd6eaea6`](https://github.com/nodejs/node-gyp/commit/26cd6eaea6)] - **doc**: add GitHub Actions badge (#1994) (Rod Vagg) [#1994](https://github.com/nodejs/node-gyp/pull/1994)
+* [[`312c12ef4f`](https://github.com/nodejs/node-gyp/commit/312c12ef4f)] - **doc**: update macOS\_Catalina.md (#1992) (James Home) [#1992](https://github.com/nodejs/node-gyp/pull/1992)
+* [[`f7b6b6b77b`](https://github.com/nodejs/node-gyp/commit/f7b6b6b77b)] - **doc**: fix typo in README.md (#1985) (Suraneti Rodsuwan) [#1985](https://github.com/nodejs/node-gyp/pull/1985)
+* [[`6b8f2652dd`](https://github.com/nodejs/node-gyp/commit/6b8f2652dd)] - **doc**: add travis badge (Rod Vagg) [#1971](https://github.com/nodejs/node-gyp/pull/1971)
+* [[`20aa0b44f7`](https://github.com/nodejs/node-gyp/commit/20aa0b44f7)] - **doc**: macOS Catalina add two commands (Christian Clauss) [#1962](https://github.com/nodejs/node-gyp/pull/1962)
+* [[`14f2a07a39`](https://github.com/nodejs/node-gyp/commit/14f2a07a39)] - **gyp**: list(dict) so we can del dict(key) while iterating (Christian Clauss) [#2009](https://github.com/nodejs/node-gyp/pull/2009)
+* [[`f242ce4d2c`](https://github.com/nodejs/node-gyp/commit/f242ce4d2c)] - **lib**: compatibility with semver ≥ 7 (`new` for semver.Range) (Xavier Guimard) [#2006](https://github.com/nodejs/node-gyp/pull/2006)
+* [[`3bcba2a01a`](https://github.com/nodejs/node-gyp/commit/3bcba2a01a)] - **(SEMVER-MINOR)** **lib**: noproxy support, match proxy detection to `request` (Matias Lopez) [#1978](https://github.com/nodejs/node-gyp/pull/1978)
+* [[`470cc2178e`](https://github.com/nodejs/node-gyp/commit/470cc2178e)] - **test**: remove old docker test harness (#1993) (Rod Vagg) [#1993](https://github.com/nodejs/node-gyp/pull/1993)
+* [[`31ecc8421d`](https://github.com/nodejs/node-gyp/commit/31ecc8421d)] - **test**: add Windows to GitHub Actions testing (#1996) (Christian Clauss) [#1996](https://github.com/nodejs/node-gyp/pull/1996)
+* [[`5a729e86ee`](https://github.com/nodejs/node-gyp/commit/5a729e86ee)] - **test**: fix typo in header download test (#2001) (Richard Lau) [#2001](https://github.com/nodejs/node-gyp/pull/2001)
+* [[`345c70e56d`](https://github.com/nodejs/node-gyp/commit/345c70e56d)] - **test**: direct python invocation & simpler pyenv (Matias Lopez) [#1979](https://github.com/nodejs/node-gyp/pull/1979)
+* [[`d6a7e0e1fb`](https://github.com/nodejs/node-gyp/commit/d6a7e0e1fb)] - **test**: fix macOS Travis on Python 2.7 & 3.7 (Christian Clauss) [#1979](https://github.com/nodejs/node-gyp/pull/1979)
+* [[`5a64e9bd32`](https://github.com/nodejs/node-gyp/commit/5a64e9bd32)] - **test**: initial Github Actions with Ubuntu & macOS (Christian Clauss) [#1985](https://github.com/nodejs/node-gyp/pull/1985)
+* [[`04da736d38`](https://github.com/nodejs/node-gyp/commit/04da736d38)] - **test**: fix Python unittests (cclauss) [#1961](https://github.com/nodejs/node-gyp/pull/1961)
+* [[`0670e5189d`](https://github.com/nodejs/node-gyp/commit/0670e5189d)] - **test**: add header download test (Rod Vagg) [#1796](https://github.com/nodejs/node-gyp/pull/1796)
+* [[`c506a6a150`](https://github.com/nodejs/node-gyp/commit/c506a6a150)] - **test**: configure proper devDir for invoking configure() (Rod Vagg) [#1796](https://github.com/nodejs/node-gyp/pull/1796)
+
+## v6.0.1 2019-11-01
+
+* [[`8ec2e681d5`](https://github.com/nodejs/node-gyp/commit/8ec2e681d5)] - **doc**: add macOS\_Catalina.md document (cclauss) [#1940](https://github.com/nodejs/node-gyp/pull/1940)
+* [[`1b11be63cc`](https://github.com/nodejs/node-gyp/commit/1b11be63cc)] - **gyp**: python3 fixes: utf8 decode, use of 'None' in eval (Wilfried Goesgens) [#1925](https://github.com/nodejs/node-gyp/pull/1925)
+* [[`c0282daa48`](https://github.com/nodejs/node-gyp/commit/c0282daa48)] - **gyp**: iteritems() -\> items() in compile\_commands\_json.py (cclauss) [#1947](https://github.com/nodejs/node-gyp/pull/1947)
+* [[`d8e09a1b6a`](https://github.com/nodejs/node-gyp/commit/d8e09a1b6a)] - **gyp**: make cmake python3 compatible (gengjiawen) [#1944](https://github.com/nodejs/node-gyp/pull/1944)
+* [[`9c0f3404f0`](https://github.com/nodejs/node-gyp/commit/9c0f3404f0)] - **gyp**: fix TypeError in XcodeVersion() (Christian Clauss) [#1939](https://github.com/nodejs/node-gyp/pull/1939)
+* [[`bb2eb72a3f`](https://github.com/nodejs/node-gyp/commit/bb2eb72a3f)] - **gyp**: finish decode stdout on Python 3 (Christian Clauss) [#1937](https://github.com/nodejs/node-gyp/pull/1937)
+* [[`f0693413d9`](https://github.com/nodejs/node-gyp/commit/f0693413d9)] - **src,win**: allow 403 errors for arm64 node.lib (Richard Lau) [#1934](https://github.com/nodejs/node-gyp/pull/1934)
+* [[`c60c22de58`](https://github.com/nodejs/node-gyp/commit/c60c22de58)] - **deps**: update deps to roughly match current npm@6 (Rod Vagg) [#1920](https://github.com/nodejs/node-gyp/pull/1920)
+* [[`b91718eefc`](https://github.com/nodejs/node-gyp/commit/b91718eefc)] - **test**: upgrade Linux Travis CI to Python 3.8 (Christian Clauss) [#1923](https://github.com/nodejs/node-gyp/pull/1923)
+* [[`3538a317b6`](https://github.com/nodejs/node-gyp/commit/3538a317b6)] - **doc**: adjustments to the README.md for new users (Dan Pike) [#1919](https://github.com/nodejs/node-gyp/pull/1919)
+* [[`4fff8458c0`](https://github.com/nodejs/node-gyp/commit/4fff8458c0)] - **travis**: ignore failed `brew upgrade npm`, update xcode (Christian Clauss) [#1932](https://github.com/nodejs/node-gyp/pull/1932)
+* [[`60e4488f08`](https://github.com/nodejs/node-gyp/commit/60e4488f08)] - **build**: avoid bare exceptions in xcode\_emulation.py (Christian Clauss) [#1932](https://github.com/nodejs/node-gyp/pull/1932)
+* [[`032db2a2d0`](https://github.com/nodejs/node-gyp/commit/032db2a2d0)] - **lib,install**: always download SHA sums on Windows (Sam Hughes) [#1926](https://github.com/nodejs/node-gyp/pull/1926)
+* [[`5a83630c33`](https://github.com/nodejs/node-gyp/commit/5a83630c33)] - **travis**: add Windows + Python 3.8 to the mix (Rod Vagg) [#1921](https://github.com/nodejs/node-gyp/pull/1921)
+
+## v6.0.0 2019-10-04
+
+* [[`dd0e97ef0b`](https://github.com/nodejs/node-gyp/commit/dd0e97ef0b)] - **(SEMVER-MAJOR)** **lib**: try to find `python` after `python3` (Sam Roberts) [#1907](https://github.com/nodejs/node-gyp/pull/1907)
+* [[`f60ed47d14`](https://github.com/nodejs/node-gyp/commit/f60ed47d14)] - **travis**: add Python 3.5 and 3.6 tests on Linux (Christian Clauss) [#1903](https://github.com/nodejs/node-gyp/pull/1903)
+* [[`c763ca1838`](https://github.com/nodejs/node-gyp/commit/c763ca1838)] - **(SEMVER-MAJOR)** **doc**: Declare that node-gyp is Python 3 compatible (cclauss) [#1811](https://github.com/nodejs/node-gyp/pull/1811)
+* [[`3d1c60ab81`](https://github.com/nodejs/node-gyp/commit/3d1c60ab81)] - **(SEMVER-MAJOR)** **lib**: accept Python 3 by default (João Reis) [#1844](https://github.com/nodejs/node-gyp/pull/1844)
+* [[`c6e3b65a23`](https://github.com/nodejs/node-gyp/commit/c6e3b65a23)] - **(SEMVER-MAJOR)** **lib**: raise the minimum Python version from 2.6 to 2.7 (cclauss) [#1818](https://github.com/nodejs/node-gyp/pull/1818)
+
+## v5.1.1 2020-05-25
+
+* [[`bdd3a79abe`](https://github.com/nodejs/node-gyp/commit/bdd3a79abe)] - **build**: shrink bloated addon binaries on windows (Shelley Vohr) [#2060](https://github.com/nodejs/node-gyp/pull/2060)
+* [[`1f2ba75bc0`](https://github.com/nodejs/node-gyp/commit/1f2ba75bc0)] - **doc**: add macOS Catalina software update info (Karl Horky) [#2078](https://github.com/nodejs/node-gyp/pull/2078)
+* [[`c106d915f5`](https://github.com/nodejs/node-gyp/commit/c106d915f5)] - **doc**: update catalina xcode cli tools download link (#2044) (Dario Vladović) [#2044](https://github.com/nodejs/node-gyp/pull/2044)
+* [[`9a6fea92e2`](https://github.com/nodejs/node-gyp/commit/9a6fea92e2)] - **doc**: update catalina xcode cli tools download link; formatting (Jonathan Hult) [#2034](https://github.com/nodejs/node-gyp/pull/2034)
+* [[`59b0b1add8`](https://github.com/nodejs/node-gyp/commit/59b0b1add8)] - **doc**: add download link for Command Line Tools for Xcode (Przemysław Bitkowski) [#2029](https://github.com/nodejs/node-gyp/pull/2029)
+* [[`bb8d0e7b10`](https://github.com/nodejs/node-gyp/commit/bb8d0e7b10)] - **doc**: Catalina suggestion: remove /Library/Developer/CommandLineTools (Christian Clauss) [#2022](https://github.com/nodejs/node-gyp/pull/2022)
+* [[`fb2e80d4e3`](https://github.com/nodejs/node-gyp/commit/fb2e80d4e3)] - **doc**: update link to the code of conduct (#2073) (Michaël Zasso) [#2073](https://github.com/nodejs/node-gyp/pull/2073)
+* [[`251d9c885c`](https://github.com/nodejs/node-gyp/commit/251d9c885c)] - **doc**: note in README that Python 3.8 is supported (#2072) (Michaël Zasso) [#2072](https://github.com/nodejs/node-gyp/pull/2072)
+* [[`2b6fc3c8d6`](https://github.com/nodejs/node-gyp/commit/2b6fc3c8d6)] - **doc, bin**: stop suggesting opening  node-gyp issues (Bartosz Sosnowski) [#2096](https://github.com/nodejs/node-gyp/pull/2096)
+* [[`a876ae58ad`](https://github.com/nodejs/node-gyp/commit/a876ae58ad)] - **test**: bump actions/checkout from v1 to v2 (BSKY) [#2063](https://github.com/nodejs/node-gyp/pull/2063)
+
+## v5.1.0 2020-02-05
+
+* [[`f37a8b40d0`](https://github.com/nodejs/node-gyp/commit/f37a8b40d0)] - **doc**: add GitHub Actions badge (#1994) (Rod Vagg) [#1994](https://github.com/nodejs/node-gyp/pull/1994)
+* [[`cb3f6aae5e`](https://github.com/nodejs/node-gyp/commit/cb3f6aae5e)] - **doc**: update macOS\_Catalina.md (#1992) (James Home) [#1992](https://github.com/nodejs/node-gyp/pull/1992)
+* [[`0607596a4c`](https://github.com/nodejs/node-gyp/commit/0607596a4c)] - **doc**: fix typo in README.md (#1985) (Suraneti Rodsuwan) [#1985](https://github.com/nodejs/node-gyp/pull/1985)
+* [[`0d5a415a14`](https://github.com/nodejs/node-gyp/commit/0d5a415a14)] - **doc**: add travis badge (Rod Vagg) [#1971](https://github.com/nodejs/node-gyp/pull/1971)
+* [[`103740cd95`](https://github.com/nodejs/node-gyp/commit/103740cd95)] - **gyp**: list(dict) so we can del dict(key) while iterating (Christian Clauss) [#2009](https://github.com/nodejs/node-gyp/pull/2009)
+* [[`278dcddbdd`](https://github.com/nodejs/node-gyp/commit/278dcddbdd)] - **lib**: ignore VS instances that cause COMExceptions (Andrew Casey) [#2018](https://github.com/nodejs/node-gyp/pull/2018)
+* [[`1694907bbf`](https://github.com/nodejs/node-gyp/commit/1694907bbf)] - **lib**: compatibility with semver ≥ 7 (`new` for semver.Range) (Xavier Guimard) [#2006](https://github.com/nodejs/node-gyp/pull/2006)
+* [[`a3f1143514`](https://github.com/nodejs/node-gyp/commit/a3f1143514)] - **(SEMVER-MINOR)** **lib**: noproxy support, match proxy detection to `request` (Matias Lopez) [#1978](https://github.com/nodejs/node-gyp/pull/1978)
+* [[`52365819c7`](https://github.com/nodejs/node-gyp/commit/52365819c7)] - **test**: remove old docker test harness (#1993) (Rod Vagg) [#1993](https://github.com/nodejs/node-gyp/pull/1993)
+* [[`bc509c511d`](https://github.com/nodejs/node-gyp/commit/bc509c511d)] - **test**: add Windows to GitHub Actions testing (#1996) (Christian Clauss) [#1996](https://github.com/nodejs/node-gyp/pull/1996)
+* [[`91ee26dd48`](https://github.com/nodejs/node-gyp/commit/91ee26dd48)] - **test**: fix typo in header download test (#2001) (Richard Lau) [#2001](https://github.com/nodejs/node-gyp/pull/2001)
+* [[`0923f344c9`](https://github.com/nodejs/node-gyp/commit/0923f344c9)] - **test**: direct python invocation & simpler pyenv (Matias Lopez) [#1979](https://github.com/nodejs/node-gyp/pull/1979)
+* [[`32c8744b34`](https://github.com/nodejs/node-gyp/commit/32c8744b34)] - **test**: fix macOS Travis on Python 2.7 & 3.7 (Christian Clauss) [#1979](https://github.com/nodejs/node-gyp/pull/1979)
+* [[`fd4b1351e4`](https://github.com/nodejs/node-gyp/commit/fd4b1351e4)] - **test**: initial Github Actions with Ubuntu & macOS (Christian Clauss) [#1985](https://github.com/nodejs/node-gyp/pull/1985)
+
+## v5.0.7 2019-12-16
+
+Republish of v5.0.6 with unnecessary tarball removed from pack file.
+
+## v5.0.6 2019-12-16
+
+* [[`cdec00286f`](https://github.com/nodejs/node-gyp/commit/cdec00286f)] - **doc**: adjustments to the README.md for new users (Dan Pike) [#1919](https://github.com/nodejs/node-gyp/pull/1919)
+* [[`b7c8233ef2`](https://github.com/nodejs/node-gyp/commit/b7c8233ef2)] - **test**: fix Python unittests (cclauss) [#1961](https://github.com/nodejs/node-gyp/pull/1961)
+* [[`e12b00ab0a`](https://github.com/nodejs/node-gyp/commit/e12b00ab0a)] - **doc**: macOS Catalina add two commands (Christian Clauss) [#1962](https://github.com/nodejs/node-gyp/pull/1962)
+* [[`70b9890c0d`](https://github.com/nodejs/node-gyp/commit/70b9890c0d)] - **test**: add header download test (Rod Vagg) [#1796](https://github.com/nodejs/node-gyp/pull/1796)
+* [[`4029fa8629`](https://github.com/nodejs/node-gyp/commit/4029fa8629)] - **test**: configure proper devDir for invoking configure() (Rod Vagg) [#1796](https://github.com/nodejs/node-gyp/pull/1796)
+* [[`fe8b02cc8b`](https://github.com/nodejs/node-gyp/commit/fe8b02cc8b)] - **doc**: add macOS\_Catalina.md document (cclauss) [#1940](https://github.com/nodejs/node-gyp/pull/1940)
+* [[`8ea47ce365`](https://github.com/nodejs/node-gyp/commit/8ea47ce365)] - **gyp**: python3 fixes: utf8 decode, use of 'None' in eval (Wilfried Goesgens) [#1925](https://github.com/nodejs/node-gyp/pull/1925)
+* [[`c7229716ba`](https://github.com/nodejs/node-gyp/commit/c7229716ba)] - **gyp**: iteritems() -\> items() in compile\_commands\_json.py (cclauss) [#1947](https://github.com/nodejs/node-gyp/pull/1947)
+* [[`2a18b2a0f8`](https://github.com/nodejs/node-gyp/commit/2a18b2a0f8)] - **gyp**: make cmake python3 compatible (gengjiawen) [#1944](https://github.com/nodejs/node-gyp/pull/1944)
+* [[`70f391e844`](https://github.com/nodejs/node-gyp/commit/70f391e844)] - **gyp**: fix TypeError in XcodeVersion() (Christian Clauss) [#1939](https://github.com/nodejs/node-gyp/pull/1939)
+* [[`9f4f0fa34e`](https://github.com/nodejs/node-gyp/commit/9f4f0fa34e)] - **gyp**: finish decode stdout on Python 3 (Christian Clauss) [#1937](https://github.com/nodejs/node-gyp/pull/1937)
+* [[`7cf507906d`](https://github.com/nodejs/node-gyp/commit/7cf507906d)] - **src,win**: allow 403 errors for arm64 node.lib (Richard Lau) [#1934](https://github.com/nodejs/node-gyp/pull/1934)
+* [[`ad0d182c01`](https://github.com/nodejs/node-gyp/commit/ad0d182c01)] - **deps**: update deps to roughly match current npm@6 (Rod Vagg) [#1920](https://github.com/nodejs/node-gyp/pull/1920)
+* [[`1553081ed6`](https://github.com/nodejs/node-gyp/commit/1553081ed6)] - **test**: upgrade Linux Travis CI to Python 3.8 (Christian Clauss) [#1923](https://github.com/nodejs/node-gyp/pull/1923)
+* [[`0705cae9aa`](https://github.com/nodejs/node-gyp/commit/0705cae9aa)] - **travis**: ignore failed `brew upgrade npm`, update xcode (Christian Clauss) [#1932](https://github.com/nodejs/node-gyp/pull/1932)
+* [[`7bfdb6f5bf`](https://github.com/nodejs/node-gyp/commit/7bfdb6f5bf)] - **build**: avoid bare exceptions in xcode\_emulation.py (Christian Clauss) [#1932](https://github.com/nodejs/node-gyp/pull/1932)
+* [[`7edf7658fa`](https://github.com/nodejs/node-gyp/commit/7edf7658fa)] - **lib,install**: always download SHA sums on Windows (Sam Hughes) [#1926](https://github.com/nodejs/node-gyp/pull/1926)
+* [[`69056d04fe`](https://github.com/nodejs/node-gyp/commit/69056d04fe)] - **travis**: add Windows + Python 3.8 to the mix (Rod Vagg) [#1921](https://github.com/nodejs/node-gyp/pull/1921)
+
+## v5.0.5 2019-10-04
+
+* [[`3891391746`](https://github.com/nodejs/node-gyp/commit/3891391746)] - **doc**: reconcile README with Python 3 compat changes (Rod Vagg) [#1911](https://github.com/nodejs/node-gyp/pull/1911)
+* [[`07f81f1920`](https://github.com/nodejs/node-gyp/commit/07f81f1920)] - **lib**: accept Python 3 after Python 2 (Sam Roberts) [#1910](https://github.com/nodejs/node-gyp/pull/1910)
+* [[`04ce59f4a2`](https://github.com/nodejs/node-gyp/commit/04ce59f4a2)] - **doc**: clarify Python configuration, etc (Sam Roberts) [#1908](https://github.com/nodejs/node-gyp/pull/1908)
+* [[`01c46ee3df`](https://github.com/nodejs/node-gyp/commit/01c46ee3df)] - **gyp**: add \_\_lt\_\_ to MSVSSolutionEntry (João Reis) [#1904](https://github.com/nodejs/node-gyp/pull/1904)
+* [[`735d961b99`](https://github.com/nodejs/node-gyp/commit/735d961b99)] - **win**: support VS 2017 Desktop Express (João Reis) [#1902](https://github.com/nodejs/node-gyp/pull/1902)
+* [[`3834156a92`](https://github.com/nodejs/node-gyp/commit/3834156a92)] - **test**: add Python 3.5 and 3.6 tests on Linux (cclauss) [#1909](https://github.com/nodejs/node-gyp/pull/1909)
+* [[`1196e990d8`](https://github.com/nodejs/node-gyp/commit/1196e990d8)] - **src**: update to standard@14 (Rod Vagg) [#1899](https://github.com/nodejs/node-gyp/pull/1899)
+* [[`53ee7dfe89`](https://github.com/nodejs/node-gyp/commit/53ee7dfe89)] - **gyp**: fix undefined name: cflags --\> ldflags (Christian Clauss) [#1901](https://github.com/nodejs/node-gyp/pull/1901)
+* [[`5871dcf6c9`](https://github.com/nodejs/node-gyp/commit/5871dcf6c9)] - **src,win**: add support for fetching arm64 node.lib (Richard Townsend) [#1875](https://github.com/nodejs/node-gyp/pull/1875)
+
+## v5.0.4 2019-09-27
+
+* [[`1236869ffc`](https://github.com/nodejs/node-gyp/commit/1236869ffc)] - **gyp**: modify XcodeVersion() to convert "4.2" to "0420" and "10.0" to "1000" (Christian Clauss) [#1895](https://github.com/nodejs/node-gyp/pull/1895)
+* [[`36638afe48`](https://github.com/nodejs/node-gyp/commit/36638afe48)] - **gyp**: more decode stdout on Python 3 (cclauss) [#1894](https://github.com/nodejs/node-gyp/pull/1894)
+* [[`f753c167c5`](https://github.com/nodejs/node-gyp/commit/f753c167c5)] - **gyp**: decode stdout on Python 3 (cclauss) [#1890](https://github.com/nodejs/node-gyp/pull/1890)
+* [[`60a4083523`](https://github.com/nodejs/node-gyp/commit/60a4083523)] - **doc**: update xcode install instructions to match Node's BUILDING (Nhan Khong) [#1884](https://github.com/nodejs/node-gyp/pull/1884)
+* [[`19dbc9ac32`](https://github.com/nodejs/node-gyp/commit/19dbc9ac32)] - **deps**: update tar to 4.4.12 (Matheus Marchini) [#1889](https://github.com/nodejs/node-gyp/pull/1889)
+* [[`5f3ed92181`](https://github.com/nodejs/node-gyp/commit/5f3ed92181)] - **bin**: fix the usage instructions (Halit Ogunc) [#1888](https://github.com/nodejs/node-gyp/pull/1888)
+* [[`aab118edf1`](https://github.com/nodejs/node-gyp/commit/aab118edf1)] - **lib**: adding keep-alive header to download requests (Milad Farazmand) [#1863](https://github.com/nodejs/node-gyp/pull/1863)
+* [[`1186e89326`](https://github.com/nodejs/node-gyp/commit/1186e89326)] - **lib**: ignore non-critical os.userInfo() failures (Rod Vagg) [#1835](https://github.com/nodejs/node-gyp/pull/1835)
+* [[`785e527c3d`](https://github.com/nodejs/node-gyp/commit/785e527c3d)] - **doc**: fix missing argument for setting python path (lagorsse) [#1802](https://github.com/nodejs/node-gyp/pull/1802)
+* [[`a97615196c`](https://github.com/nodejs/node-gyp/commit/a97615196c)] - **gyp**: rm semicolons (Python != JavaScript) (MattIPv4) [#1858](https://github.com/nodejs/node-gyp/pull/1858)
+* [[`06019bac24`](https://github.com/nodejs/node-gyp/commit/06019bac24)] - **gyp**: assorted typo fixes (XhmikosR) [#1853](https://github.com/nodejs/node-gyp/pull/1853)
+* [[`3f4972c1ca`](https://github.com/nodejs/node-gyp/commit/3f4972c1ca)] - **gyp**: use "is" when comparing to None (Vladyslav Burzakovskyy) [#1860](https://github.com/nodejs/node-gyp/pull/1860)
+* [[`1cb4708073`](https://github.com/nodejs/node-gyp/commit/1cb4708073)] - **src,win**: improve unmanaged handling (Peter Sabath) [#1852](https://github.com/nodejs/node-gyp/pull/1852)
+* [[`5553cd910e`](https://github.com/nodejs/node-gyp/commit/5553cd910e)] - **gyp**: improve Windows+Cygwin compatibility (Jose Quijada) [#1817](https://github.com/nodejs/node-gyp/pull/1817)
+* [[`8bcb1fbb43`](https://github.com/nodejs/node-gyp/commit/8bcb1fbb43)] - **gyp**: Python 3 Windows fixes (João Reis) [#1843](https://github.com/nodejs/node-gyp/pull/1843)
+* [[`2e24d0a326`](https://github.com/nodejs/node-gyp/commit/2e24d0a326)] - **test**: accept Python 3 in test-find-python.js (João Reis) [#1843](https://github.com/nodejs/node-gyp/pull/1843)
+* [[`1267b4dc1c`](https://github.com/nodejs/node-gyp/commit/1267b4dc1c)] - **build**: add test run Python 3.7 on macOS (Christian Clauss) [#1843](https://github.com/nodejs/node-gyp/pull/1843)
+* [[`da1b031aa3`](https://github.com/nodejs/node-gyp/commit/da1b031aa3)] - **build**: import StringIO on Python 2 and Python 3 (Christian Clauss) [#1836](https://github.com/nodejs/node-gyp/pull/1836)
+* [[`fa0ed4aa42`](https://github.com/nodejs/node-gyp/commit/fa0ed4aa42)] - **build**: more Python 3 compat, replace compile with ast (cclauss) [#1820](https://github.com/nodejs/node-gyp/pull/1820)
+* [[`18d5c7c9d0`](https://github.com/nodejs/node-gyp/commit/18d5c7c9d0)] - **win,src**: update win\_delay\_load\_hook.cc to work with /clr (Ivan Petrovic) [#1819](https://github.com/nodejs/node-gyp/pull/1819)
+
+## v5.0.3 2019-07-17
+
+* [[`66ad305775`](https://github.com/nodejs/node-gyp/commit/66ad305775)] - **python**: accept Python 3 conditionally (João Reis) [#1815](https://github.com/nodejs/node-gyp/pull/1815)
+* [[`7e7fce3fed`](https://github.com/nodejs/node-gyp/commit/7e7fce3fed)] - **python**: move Python detection to its own file (João Reis) [#1815](https://github.com/nodejs/node-gyp/pull/1815)
+* [[`e40c99e283`](https://github.com/nodejs/node-gyp/commit/e40c99e283)] - **src**: implement standard.js linting (Rod Vagg) [#1794](https://github.com/nodejs/node-gyp/pull/1794)
+* [[`bb92c761a9`](https://github.com/nodejs/node-gyp/commit/bb92c761a9)] - **test**: add Node.js 6 on Windows to Travis CI (João Reis) [#1812](https://github.com/nodejs/node-gyp/pull/1812)
+* [[`7fd924079f`](https://github.com/nodejs/node-gyp/commit/7fd924079f)] - **test**: increase tap timeout (João Reis) [#1812](https://github.com/nodejs/node-gyp/pull/1812)
+* [[`7e8127068f`](https://github.com/nodejs/node-gyp/commit/7e8127068f)] - **test**: cover supported node versions with travis (Rod Vagg) [#1809](https://github.com/nodejs/node-gyp/pull/1809)
+* [[`24109148df`](https://github.com/nodejs/node-gyp/commit/24109148df)] - **test**: downgrade to tap@^12 for continued Node 6 support (Rod Vagg) [#1808](https://github.com/nodejs/node-gyp/pull/1808)
+* [[`656117cc4a`](https://github.com/nodejs/node-gyp/commit/656117cc4a)] - **win**: make VS path match case-insensitive (João Reis) [#1806](https://github.com/nodejs/node-gyp/pull/1806)
+
+## v5.0.2 2019-06-27
+
+* [[`2761afbf73`](https://github.com/nodejs/node-gyp/commit/2761afbf73)] - **build,test**: add duplicate symbol test (Gabriel Schulhof) [#1689](https://github.com/nodejs/node-gyp/pull/1689)
+* [[`82f129d6de`](https://github.com/nodejs/node-gyp/commit/82f129d6de)] - **gyp**: replace optparse to argparse (KiYugadgeter) [#1591](https://github.com/nodejs/node-gyp/pull/1591)
+* [[`afaaa29c61`](https://github.com/nodejs/node-gyp/commit/afaaa29c61)] - **gyp**: remove from \_\_future\_\_ import with\_statement (cclauss) [#1799](https://github.com/nodejs/node-gyp/pull/1799)
+* [[`a991f633d6`](https://github.com/nodejs/node-gyp/commit/a991f633d6)] - **gyp**: fix the remaining Python 3 issues (cclauss) [#1793](https://github.com/nodejs/node-gyp/pull/1793)
+* [[`f952b08f84`](https://github.com/nodejs/node-gyp/commit/f952b08f84)] - **gyp**: move from \_\_future\_\_ import to the top of the file (cclauss) [#1789](https://github.com/nodejs/node-gyp/pull/1789)
+* [[`4f4a677dfa`](https://github.com/nodejs/node-gyp/commit/4f4a677dfa)] - **gyp**: use different default compiler for z/OS (Shuowang (Wayne) Zhang) [#1768](https://github.com/nodejs/node-gyp/pull/1768)
+* [[`03683f09d6`](https://github.com/nodejs/node-gyp/commit/03683f09d6)] - **lib**: code de-duplication (Pavel Medvedev) [#965](https://github.com/nodejs/node-gyp/pull/965)
+* [[`611bc3c89f`](https://github.com/nodejs/node-gyp/commit/611bc3c89f)] - **lib**: add .json suffix for explicit require (Rod Vagg) [#1787](https://github.com/nodejs/node-gyp/pull/1787)
+* [[`d3478d7b0b`](https://github.com/nodejs/node-gyp/commit/d3478d7b0b)] - **meta**: add to .gitignore (Refael Ackermann) [#1573](https://github.com/nodejs/node-gyp/pull/1573)
+* [[`7a9a038e9e`](https://github.com/nodejs/node-gyp/commit/7a9a038e9e)] - **test**: add parallel test runs on macOS and Windows (cclauss) [#1800](https://github.com/nodejs/node-gyp/pull/1800)
+* [[`7dd7f2b2a2`](https://github.com/nodejs/node-gyp/commit/7dd7f2b2a2)] - **test**: fix Python syntax error in test-adding.js (cclauss) [#1793](https://github.com/nodejs/node-gyp/pull/1793)
+* [[`395f843de0`](https://github.com/nodejs/node-gyp/commit/395f843de0)] - **test**: replace self-signed cert with 'localhost' (Rod Vagg) [#1795](https://github.com/nodejs/node-gyp/pull/1795)
+* [[`a52c6eb9e8`](https://github.com/nodejs/node-gyp/commit/a52c6eb9e8)] - **test**: migrate from tape to tap (Rod Vagg) [#1795](https://github.com/nodejs/node-gyp/pull/1795)
+* [[`ec2eb44a30`](https://github.com/nodejs/node-gyp/commit/ec2eb44a30)] - **test**: use Nan in duplicate\_symbols (Gabriel Schulhof) [#1689](https://github.com/nodejs/node-gyp/pull/1689)
+* [[`1597c84aad`](https://github.com/nodejs/node-gyp/commit/1597c84aad)] - **test**: use Travis CI to run tests on every pull request (cclauss) [#1752](https://github.com/nodejs/node-gyp/pull/1752)
+* [[`dd9bf929ac`](https://github.com/nodejs/node-gyp/commit/dd9bf929ac)] - **zos**: update compiler options (Shuowang (Wayne) Zhang) [#1768](https://github.com/nodejs/node-gyp/pull/1768)
+
+## v5.0.1 2019-06-20
+
+* [[`e3861722ed`](https://github.com/nodejs/node-gyp/commit/e3861722ed)] - **doc**: document --jobs max (David Sanders) [#1770](https://github.com/nodejs/node-gyp/pull/1770)
+* [[`1cfdb28886`](https://github.com/nodejs/node-gyp/commit/1cfdb28886)] - **lib**: reintroduce support for iojs file naming for releases \>= 1 && \< 4 (Samuel Attard) [#1777](https://github.com/nodejs/node-gyp/pull/1777)
+
+## v5.0.0 2019-06-13
+
+* [[`8a83972743`](https://github.com/nodejs/node-gyp/commit/8a83972743)] - **(SEMVER-MAJOR)** **bin**: follow XDG OS conventions for storing data (Selwyn) [#1570](https://github.com/nodejs/node-gyp/pull/1570)
+* [[`9e46872ea3`](https://github.com/nodejs/node-gyp/commit/9e46872ea3)] - **bin,lib**: remove extra comments/lines/spaces (Jon Moss) [#1508](https://github.com/nodejs/node-gyp/pull/1508)
+* [[`8098ebdeb4`](https://github.com/nodejs/node-gyp/commit/8098ebdeb4)] - **deps**: replace `osenv` dependency with native `os` (Selwyn)
+* [[`f83b457e03`](https://github.com/nodejs/node-gyp/commit/f83b457e03)] - **deps**: bump request to 2.8.7, fixes heok/hawk issues (Rohit Hazra) [#1492](https://github.com/nodejs/node-gyp/pull/1492)
+* [[`323cee7323`](https://github.com/nodejs/node-gyp/commit/323cee7323)] - **deps**: pin `request` version range (Refael Ackermann) [#1300](https://github.com/nodejs/node-gyp/pull/1300)
+* [[`c515912d08`](https://github.com/nodejs/node-gyp/commit/c515912d08)] - **doc**: improve issue template (Bartosz Sosnowski) [#1618](https://github.com/nodejs/node-gyp/pull/1618)
+* [[`cca2d66727`](https://github.com/nodejs/node-gyp/commit/cca2d66727)] - **doc**: python info needs own header (Taylor D. Lee) [#1245](https://github.com/nodejs/node-gyp/pull/1245)
+* [[`3e64c780f5`](https://github.com/nodejs/node-gyp/commit/3e64c780f5)] - **doc**: lint README.md (Jon Moss) [#1498](https://github.com/nodejs/node-gyp/pull/1498)
+* [[`a20faedc91`](https://github.com/nodejs/node-gyp/commit/a20faedc91)] - **(SEMVER-MAJOR)** **gyp**: enable MARMASM items only on new VS versions (João Reis) [#1762](https://github.com/nodejs/node-gyp/pull/1762)
+* [[`721eb691cf`](https://github.com/nodejs/node-gyp/commit/721eb691cf)] - **gyp**: teach MSVS generator about MARMASM Items (Jon Kunkee) [#1679](https://github.com/nodejs/node-gyp/pull/1679)
+* [[`91744bfecc`](https://github.com/nodejs/node-gyp/commit/91744bfecc)] - **gyp**: add support for Windows on Arm (Richard Townsend) [#1739](https://github.com/nodejs/node-gyp/pull/1739)
+* [[`a6e0a6c7ed`](https://github.com/nodejs/node-gyp/commit/a6e0a6c7ed)] - **gyp**: move compile\_commands\_json (Paul Maréchal) [#1661](https://github.com/nodejs/node-gyp/pull/1661)
+* [[`92e8b52cee`](https://github.com/nodejs/node-gyp/commit/92e8b52cee)] - **gyp**: fix target --\> self.target (cclauss)
+* [[`febdfa2137`](https://github.com/nodejs/node-gyp/commit/febdfa2137)] - **gyp**: fix sntex error (cclauss) [#1333](https://github.com/nodejs/node-gyp/pull/1333)
+* [[`588d333c14`](https://github.com/nodejs/node-gyp/commit/588d333c14)] - **gyp**: \_winreg module was renamed to winreg in Python 3. (Craig Rodrigues)
+* [[`98226d198c`](https://github.com/nodejs/node-gyp/commit/98226d198c)] - **gyp**: replace basestring with str, but only on Python 3. (Craig Rodrigues)
+* [[`7535e4478e`](https://github.com/nodejs/node-gyp/commit/7535e4478e)] - **gyp**: replace deprecated functions (Craig Rodrigues)
+* [[`2040cd21cc`](https://github.com/nodejs/node-gyp/commit/2040cd21cc)] - **gyp**: use print as a function, as specified in PEP 3105. (Craig Rodrigues)
+* [[`abef93ded5`](https://github.com/nodejs/node-gyp/commit/abef93ded5)] - **gyp**: get ready for python 3 (cclauss)
+* [[`43031fadcb`](https://github.com/nodejs/node-gyp/commit/43031fadcb)] - **python**: clean-up detection (João Reis) [#1582](https://github.com/nodejs/node-gyp/pull/1582)
+* [[`49ab79d221`](https://github.com/nodejs/node-gyp/commit/49ab79d221)] - **python**: more informative error (Refael Ackermann) [#1269](https://github.com/nodejs/node-gyp/pull/1269)
+* [[`997bc3c748`](https://github.com/nodejs/node-gyp/commit/997bc3c748)] - **readme**: add ARM64 info to MSVC setup instructions (Jon Kunkee) [#1655](https://github.com/nodejs/node-gyp/pull/1655)
+* [[`788e767179`](https://github.com/nodejs/node-gyp/commit/788e767179)] - **test**: remove unused variable (João Reis)
+* [[`6f5a408934`](https://github.com/nodejs/node-gyp/commit/6f5a408934)] - **tools**: fix usage of inherited -fPIC and -fPIE (Jens) [#1340](https://github.com/nodejs/node-gyp/pull/1340)
+* [[`0efb8fb34b`](https://github.com/nodejs/node-gyp/commit/0efb8fb34b)] - **(SEMVER-MAJOR)** **win**: support running in VS Command Prompt (João Reis) [#1762](https://github.com/nodejs/node-gyp/pull/1762)
+* [[`360ddbdf3a`](https://github.com/nodejs/node-gyp/commit/360ddbdf3a)] - **(SEMVER-MAJOR)** **win**: add support for Visual Studio 2019 (João Reis) [#1762](https://github.com/nodejs/node-gyp/pull/1762)
+* [[`8f43f68275`](https://github.com/nodejs/node-gyp/commit/8f43f68275)] - **(SEMVER-MAJOR)** **win**: detect all VS versions in node-gyp (João Reis) [#1762](https://github.com/nodejs/node-gyp/pull/1762)
+* [[`7fe4095974`](https://github.com/nodejs/node-gyp/commit/7fe4095974)] - **(SEMVER-MAJOR)** **win**: generic Visual Studio 2017 detection (João Reis) [#1762](https://github.com/nodejs/node-gyp/pull/1762)
+* [[`7a71d68bce`](https://github.com/nodejs/node-gyp/commit/7a71d68bce)] - **win**: use msbuild from the configure stage (Bartosz Sosnowski) [#1654](https://github.com/nodejs/node-gyp/pull/1654)
+* [[`d3b21220a0`](https://github.com/nodejs/node-gyp/commit/d3b21220a0)] - **win**: fix delay-load hook for electron 4 (Andy Dill)
+* [[`81f3a92338`](https://github.com/nodejs/node-gyp/commit/81f3a92338)] - Update list of Node.js versions to test against. (Ben Noordhuis) [#1670](https://github.com/nodejs/node-gyp/pull/1670)
+* [[`4748f6ab75`](https://github.com/nodejs/node-gyp/commit/4748f6ab75)] - Remove deprecated compatibility code. (Ben Noordhuis) [#1670](https://github.com/nodejs/node-gyp/pull/1670)
+* [[`45e3221fd4`](https://github.com/nodejs/node-gyp/commit/45e3221fd4)] - Remove an outdated workaround for Python 2.4 (cclauss) [#1650](https://github.com/nodejs/node-gyp/pull/1650)
+* [[`721dc7d314`](https://github.com/nodejs/node-gyp/commit/721dc7d314)] - Add ARM64 to MSBuild /Platform logic (Jon Kunkee) [#1655](https://github.com/nodejs/node-gyp/pull/1655)
+* [[`a5b7410497`](https://github.com/nodejs/node-gyp/commit/a5b7410497)] - Add ESLint no-unused-vars rule (Jon Moss) [#1497](https://github.com/nodejs/node-gyp/pull/1497)
+
+## v4.0.0 2019-04-24
+
+* [[`ceed5cbe10`](https://github.com/nodejs/node-gyp/commit/ceed5cbe10)] - **deps**: updated tar package version to 4.4.8 (Pobegaylo Maksim) [#1713](https://github.com/nodejs/node-gyp/pull/1713)
+* [[`374519e066`](https://github.com/nodejs/node-gyp/commit/374519e066)] - **(SEMVER-MAJOR)** Upgrade to tar v3 (isaacs) [#1212](https://github.com/nodejs/node-gyp/pull/1212)
+* [[`e6699d13cd`](https://github.com/nodejs/node-gyp/commit/e6699d13cd)] - **test**: fix addon test for Node.js 12 and V8 7.4 (Richard Lau) [#1705](https://github.com/nodejs/node-gyp/pull/1705)
+* [[`0c6bf530a0`](https://github.com/nodejs/node-gyp/commit/0c6bf530a0)] - **lib**: use print() for python version detection (GreenAddress) [#1534](https://github.com/nodejs/node-gyp/pull/1534)
+
+## v3.8.0 2018-08-09
+
+* [[`c5929cb4fe`](https://github.com/nodejs/node-gyp/commit/c5929cb4fe)] - **doc**: update Xcode preferences tab name. (Ivan Daniluk) [#1330](https://github.com/nodejs/node-gyp/pull/1330)
+* [[`8b488da8b9`](https://github.com/nodejs/node-gyp/commit/8b488da8b9)] - **doc**: update link to commit guidelines (Jonas Hermsmeier) [#1456](https://github.com/nodejs/node-gyp/pull/1456)
+* [[`b4fe8c16f9`](https://github.com/nodejs/node-gyp/commit/b4fe8c16f9)] - **doc**: fix visual studio links (Bartosz Sosnowski) [#1490](https://github.com/nodejs/node-gyp/pull/1490)
+* [[`536759c7e9`](https://github.com/nodejs/node-gyp/commit/536759c7e9)] - **configure**: use sys.version\_info to get python version (Yang Guo) [#1504](https://github.com/nodejs/node-gyp/pull/1504)
+* [[`94c39c604e`](https://github.com/nodejs/node-gyp/commit/94c39c604e)] - **gyp**: fix ninja build failure (GYP patch) (Daniel Bevenius) [nodejs/node#12484](https://github.com/nodejs/node/pull/12484)
+* [[`e8ea74e0fa`](https://github.com/nodejs/node-gyp/commit/e8ea74e0fa)] - **tools**: patch gyp to avoid xcrun errors (Ujjwal Sharma) [nodejs/node#21520](https://github.com/nodejs/node/pull/21520)
+* [[`ea9aff44f2`](https://github.com/nodejs/node-gyp/commit/ea9aff44f2)] - **tools**: fix "the the" typos in comments (Masashi Hirano) [nodejs/node#20716](https://github.com/nodejs/node/pull/20716)
+* [[`207e5aa4fd`](https://github.com/nodejs/node-gyp/commit/207e5aa4fd)] - **gyp**: implement LD/LDXX for ninja and FIPS (Sam Roberts) 
+* [[`b416c5f4b7`](https://github.com/nodejs/node-gyp/commit/b416c5f4b7)] - **gyp**: enable cctest to use objects (gyp part) (Daniel Bevenius) [nodejs/node#12450](https://github.com/nodejs/node/pull/12450)
+* [[`40692d016b`](https://github.com/nodejs/node-gyp/commit/40692d016b)] - **gyp**: add compile\_commands.json gyp generator (Ben Noordhuis) [nodejs/node#12450](https://github.com/nodejs/node/pull/12450)
+* [[`fc3c4e2b10`](https://github.com/nodejs/node-gyp/commit/fc3c4e2b10)] - **gyp**: float gyp patch for long filenames (Anna Henningsen) [nodejs/node#7963](https://github.com/nodejs/node/pull/7963)
+* [[`8aedbfdef6`](https://github.com/nodejs/node-gyp/commit/8aedbfdef6)] - **gyp**: backport GYP fix to fix AIX shared suffix (Stewart Addison) 
+* [[`6cd84b84fc`](https://github.com/nodejs/node-gyp/commit/6cd84b84fc)] - **test**: formatting and minor fixes for execFileSync replacement (Rod Vagg) [#1521](https://github.com/nodejs/node-gyp/pull/1521)
+* [[`60e421363f`](https://github.com/nodejs/node-gyp/commit/60e421363f)] - **test**: added test/processExecSync.js for when execFileSync is not available. (Rohit Hazra) [#1492](https://github.com/nodejs/node-gyp/pull/1492)
+* [[`969447c5bd`](https://github.com/nodejs/node-gyp/commit/969447c5bd)] - **deps**: bump request to 2.8.7, fixes heok/hawk issues (Rohit Hazra) [#1492](https://github.com/nodejs/node-gyp/pull/1492)
+* [[`340403ccfe`](https://github.com/nodejs/node-gyp/commit/340403ccfe)] - **win**: improve parsing of SDK version (Alessandro Vergani) [#1516](https://github.com/nodejs/node-gyp/pull/1516)
+
+## v3.7.0 2018-06-08
+
+* [[`84cea7b30d`](https://github.com/nodejs/node-gyp/commit/84cea7b30d)] - Remove unused gyp test scripts. (Ben Noordhuis) [#1458](https://github.com/nodejs/node-gyp/pull/1458)
+* [[`0540e4ec63`](https://github.com/nodejs/node-gyp/commit/0540e4ec63)] - **gyp**: escape spaces in filenames in make generator (Jeff Senn) [#1436](https://github.com/nodejs/node-gyp/pull/1436)
+* [[`88fc6fa0ec`](https://github.com/nodejs/node-gyp/commit/88fc6fa0ec)] - Drop dependency on minimatch. (Brian Woodward) [#1158](https://github.com/nodejs/node-gyp/pull/1158)
+* [[`1e203c5148`](https://github.com/nodejs/node-gyp/commit/1e203c5148)] - Fix include path when pointing to Node.js source (Richard Lau) [#1055](https://github.com/nodejs/node-gyp/pull/1055)
+* [[`53d8cb967c`](https://github.com/nodejs/node-gyp/commit/53d8cb967c)] - Prefix build targets with /t: on Windows (Natalie Wolfe) [#1164](https://github.com/nodejs/node-gyp/pull/1164)
+* [[`53a5f8ff38`](https://github.com/nodejs/node-gyp/commit/53a5f8ff38)] - **gyp**: add support for .mm files to msvs generator (Julien Racle) [#1167](https://github.com/nodejs/node-gyp/pull/1167)
+* [[`dd8561e528`](https://github.com/nodejs/node-gyp/commit/dd8561e528)] - **zos**: don't use universal-new-lines mode (John Barboza) [#1451](https://github.com/nodejs/node-gyp/pull/1451)
+* [[`e5a69010ed`](https://github.com/nodejs/node-gyp/commit/e5a69010ed)] - **zos**: add search locations for libnode.x (John Barboza) [#1451](https://github.com/nodejs/node-gyp/pull/1451)
+* [[`79febace53`](https://github.com/nodejs/node-gyp/commit/79febace53)] - **doc**: update macOS information in README (Josh Parnham) [#1323](https://github.com/nodejs/node-gyp/pull/1323)
+* [[`9425448945`](https://github.com/nodejs/node-gyp/commit/9425448945)] - **gyp**: don't print xcodebuild not found errors (Gibson Fahnestock) [#1370](https://github.com/nodejs/node-gyp/pull/1370)
+* [[`6f1286f5b2`](https://github.com/nodejs/node-gyp/commit/6f1286f5b2)] - Fix infinite install loop. (Ben Noordhuis) [#1384](https://github.com/nodejs/node-gyp/pull/1384)
+* [[`2580b9139e`](https://github.com/nodejs/node-gyp/commit/2580b9139e)] - Update `--nodedir` description in README. (Ben Noordhuis) [#1372](https://github.com/nodejs/node-gyp/pull/1372)
+* [[`a61360391a`](https://github.com/nodejs/node-gyp/commit/a61360391a)] - Update README with another way to install on windows (JeffAtDeere) [#1352](https://github.com/nodejs/node-gyp/pull/1352)
+* [[`47496bf6dc`](https://github.com/nodejs/node-gyp/commit/47496bf6dc)] - Fix IndexError when parsing GYP files. (Ben Noordhuis) [#1267](https://github.com/nodejs/node-gyp/pull/1267)
+* [[`b2024dee7b`](https://github.com/nodejs/node-gyp/commit/b2024dee7b)] - **zos**: support platform (John Barboza) [#1276](https://github.com/nodejs/node-gyp/pull/1276)
+* [[`90d86512f4`](https://github.com/nodejs/node-gyp/commit/90d86512f4)] - **win**: run PS with `-NoProfile` (Refael Ackermann) [#1292](https://github.com/nodejs/node-gyp/pull/1292)
+* [[`2da5f86ef7`](https://github.com/nodejs/node-gyp/commit/2da5f86ef7)] - **doc**: add github PR and Issue templates (Gibson Fahnestock) [#1228](https://github.com/nodejs/node-gyp/pull/1228)
+* [[`a46a770d68`](https://github.com/nodejs/node-gyp/commit/a46a770d68)] - **doc**: update proposed DCO and CoC (Mikeal Rogers) [#1229](https://github.com/nodejs/node-gyp/pull/1229)
+* [[`7e803d58e0`](https://github.com/nodejs/node-gyp/commit/7e803d58e0)] - **doc**: headerify the Install instructions (Nick Schonning) [#1225](https://github.com/nodejs/node-gyp/pull/1225)
+* [[`f27599193a`](https://github.com/nodejs/node-gyp/commit/f27599193a)] - **gyp**: update xml string encoding conversion (Liu Chao) [#1203](https://github.com/nodejs/node-gyp/pull/1203)
+* [[`0a07e481f7`](https://github.com/nodejs/node-gyp/commit/0a07e481f7)] - **configure**: don't set ensure if tarball is set (Gibson Fahnestock) [#1220](https://github.com/nodejs/node-gyp/pull/1220)
+
+## v3.6.3 2018-06-08
+
+* [[`90cd2e8da9`](https://github.com/nodejs/node-gyp/commit/90cd2e8da9)] - **gyp**: fix regex to match multi-digit versions (Jonas Hermsmeier) [#1455](https://github.com/nodejs/node-gyp/pull/1455)
+* [[`7900122337`](https://github.com/nodejs/node-gyp/commit/7900122337)] - deps: pin `request` version range (Refael Ackerman) [#1300](https://github.com/nodejs/node-gyp/pull/1300)
+
+## v3.6.2 2017-06-01
+
+* [[`72afdd62cd`](https://github.com/nodejs/node-gyp/commit/72afdd62cd)] - **build**: rename copyNodeLib() to doBuild() (Liu Chao) [#1206](https://github.com/nodejs/node-gyp/pull/1206)
+* [[`bad903ac70`](https://github.com/nodejs/node-gyp/commit/bad903ac70)] - **win**: more robust parsing of SDK version (Refael Ackermann) [#1198](https://github.com/nodejs/node-gyp/pull/1198)
+* [[`241752f381`](https://github.com/nodejs/node-gyp/commit/241752f381)] - Log dist-url. (Ben Noordhuis) [#1170](https://github.com/nodejs/node-gyp/pull/1170)
+* [[`386746c7d1`](https://github.com/nodejs/node-gyp/commit/386746c7d1)] - **configure**: use full path in node_lib_file GYP var (Pavel Medvedev) [#964](https://github.com/nodejs/node-gyp/pull/964)
+* [[`0913b2dd99`](https://github.com/nodejs/node-gyp/commit/0913b2dd99)] - **build, win**: use target_arch to link with node.lib (Pavel Medvedev) [#964](https://github.com/nodejs/node-gyp/pull/964)
+* [[`c307b302f7`](https://github.com/nodejs/node-gyp/commit/c307b302f7)] - **doc**: blorb about setting `npm_config_OPTION_NAME` (Refael Ackermann) [#1185](https://github.com/nodejs/node-gyp/pull/1185)
+
+## v3.6.1 2017-04-30
+
+* [[`49801716c2`](https://github.com/nodejs/node-gyp/commit/49801716c2)] - **test**: fix test-find-python on v0.10.x buildbot. (Ben Noordhuis) [#1172](https://github.com/nodejs/node-gyp/pull/1172)
+* [[`a83a3801fc`](https://github.com/nodejs/node-gyp/commit/a83a3801fc)] - **test**: fix test/test-configure-python on AIX (Richard Lau) [#1131](https://github.com/nodejs/node-gyp/pull/1131)
+* [[`8a767145c9`](https://github.com/nodejs/node-gyp/commit/8a767145c9)] - **gyp**: Revert quote_cmd workaround (Kunal Pathak) [#1153](https://github.com/nodejs/node-gyp/pull/1153)
+* [[`c09cf7671e`](https://github.com/nodejs/node-gyp/commit/c09cf7671e)] - **doc**: add a note for using `configure` on Windows (Vse Mozhet Byt) [#1152](https://github.com/nodejs/node-gyp/pull/1152)
+* [[`da9cb5f411`](https://github.com/nodejs/node-gyp/commit/da9cb5f411)] - Delete superfluous .patch files. (Ben Noordhuis) [#1122](https://github.com/nodejs/node-gyp/pull/1122)
+
+## v3.6.0 2017-03-16
+
+* [[`ae141e1906`](https://github.com/nodejs/node-gyp/commit/ae141e1906)] - **win**: find and setup for VS2017 (Refael Ackermann) [#1130](https://github.com/nodejs/node-gyp/pull/1130)
+* [[`ec5fc36a80`](https://github.com/nodejs/node-gyp/commit/ec5fc36a80)] - Add support to build node.js with chakracore for ARM. (Kunal Pathak) [#873](https://github.com/nodejs/node-gyp/pull/873)
+* [[`a04ea3051a`](https://github.com/nodejs/node-gyp/commit/a04ea3051a)] - Add support to build node.js with chakracore. (Kunal Pathak) [#873](https://github.com/nodejs/node-gyp/pull/873)
+* [[`93d7fa83c8`](https://github.com/nodejs/node-gyp/commit/93d7fa83c8)] - Upgrade semver dependency. (Ben Noordhuis) [#1107](https://github.com/nodejs/node-gyp/pull/1107)
+* [[`ff9a6fadfd`](https://github.com/nodejs/node-gyp/commit/ff9a6fadfd)] - Update link of gyp as Google code is shutting down (Peter Dave Hello) [#1061](https://github.com/nodejs/node-gyp/pull/1061)
+
+## v3.5.0 2017-01-10
+
+* [[`762d19a39e`](https://github.com/nodejs/node-gyp/commit/762d19a39e)] - \[doc\] merge History.md and CHANGELOG.md (Rod Vagg) 
+* [[`80fc5c3d31`](https://github.com/nodejs/node-gyp/commit/80fc5c3d31)] - Fix deprecated dependency warning (Simone Primarosa) [#1069](https://github.com/nodejs/node-gyp/pull/1069)
+* [[`05c44944fd`](https://github.com/nodejs/node-gyp/commit/05c44944fd)] - Open the build file with universal-newlines mode (Guy Margalit) [#1053](https://github.com/nodejs/node-gyp/pull/1053)
+* [[`37ae7be114`](https://github.com/nodejs/node-gyp/commit/37ae7be114)] - Try python launcher when stock python is python 3. (Ben Noordhuis) [#992](https://github.com/nodejs/node-gyp/pull/992)
+* [[`e3778d9907`](https://github.com/nodejs/node-gyp/commit/e3778d9907)] - Add lots of findPython() tests. (Ben Noordhuis) [#992](https://github.com/nodejs/node-gyp/pull/992)
+* [[`afc766adf6`](https://github.com/nodejs/node-gyp/commit/afc766adf6)] - Unset executable bit for .bat files (Pavel Medvedev) [#969](https://github.com/nodejs/node-gyp/pull/969)
+* [[`ddac348991`](https://github.com/nodejs/node-gyp/commit/ddac348991)] - Use push on PYTHONPATH and add tests (Michael Hart) [#990](https://github.com/nodejs/node-gyp/pull/990)
+* [[`b182a19042`](https://github.com/nodejs/node-gyp/commit/b182a19042)] - ***Revert*** "add "path-array" dep" (Michael Hart) [#990](https://github.com/nodejs/node-gyp/pull/990)
+* [[`7c08b85c5a`](https://github.com/nodejs/node-gyp/commit/7c08b85c5a)] - ***Revert*** "**configure**: use "path-array" for PYTHONPATH" (Michael Hart) [#990](https://github.com/nodejs/node-gyp/pull/990)
+* [[`9c8d275526`](https://github.com/nodejs/node-gyp/commit/9c8d275526)] - Add --devdir flag. (Ben Noordhuis) [#916](https://github.com/nodejs/node-gyp/pull/916)
+* [[`f6eab1f9e4`](https://github.com/nodejs/node-gyp/commit/f6eab1f9e4)] - **doc**: add windows-build-tools to readme (Felix Rieseberg) [#970](https://github.com/nodejs/node-gyp/pull/970)
+
+## v3.4.0 2016-06-28
+
+* [[`ce5fd04e94`](https://github.com/nodejs/node-gyp/commit/ce5fd04e94)] - **deps**: update minimatch version (delphiactual) [#961](https://github.com/nodejs/node-gyp/pull/961)
+* [[`77383ddd85`](https://github.com/nodejs/node-gyp/commit/77383ddd85)] - Replace fs.accessSync call to fs.statSync (Richard Lau) [#955](https://github.com/nodejs/node-gyp/pull/955)
+* [[`0dba4bda57`](https://github.com/nodejs/node-gyp/commit/0dba4bda57)] - **test**: add simple addon test (Richard Lau) [#955](https://github.com/nodejs/node-gyp/pull/955)
+* [[`c4344b3889`](https://github.com/nodejs/node-gyp/commit/c4344b3889)] - **doc**: add --target option to README (Gibson Fahnestock) [#958](https://github.com/nodejs/node-gyp/pull/958)
+* [[`cc778e9215`](https://github.com/nodejs/node-gyp/commit/cc778e9215)] - Override BUILDING_UV_SHARED, BUILDING_V8_SHARED. (Ben Noordhuis) [#915](https://github.com/nodejs/node-gyp/pull/915)
+* [[`af35b2ad32`](https://github.com/nodejs/node-gyp/commit/af35b2ad32)] - Move VC++ Build Tools to Build Tools landing page. (Andrew Pardoe) [#953](https://github.com/nodejs/node-gyp/pull/953)
+* [[`f31482e226`](https://github.com/nodejs/node-gyp/commit/f31482e226)] - **win**: work around __pfnDliNotifyHook2 type change (Alexis Campailla) [#952](https://github.com/nodejs/node-gyp/pull/952)
+* [[`3df8222fa5`](https://github.com/nodejs/node-gyp/commit/3df8222fa5)] - Allow for npmlog@3.x (Rebecca Turner) [#950](https://github.com/nodejs/node-gyp/pull/950)
+* [[`a4fa07b390`](https://github.com/nodejs/node-gyp/commit/a4fa07b390)] - More verbose error on locating msbuild.exe failure. (Mateusz Jaworski) [#930](https://github.com/nodejs/node-gyp/pull/930)
+* [[`4ee31329e0`](https://github.com/nodejs/node-gyp/commit/4ee31329e0)] - **doc**: add command options to README.md (Gibson Fahnestock) [#937](https://github.com/nodejs/node-gyp/pull/937)
+* [[`c8c7ca86b9`](https://github.com/nodejs/node-gyp/commit/c8c7ca86b9)] - Add --silent option for zero output. (Gibson Fahnestock) [#937](https://github.com/nodejs/node-gyp/pull/937)
+* [[`ac29d23a7c`](https://github.com/nodejs/node-gyp/commit/ac29d23a7c)] - Upgrade to glob@7.0.3. (Ben Noordhuis) [#943](https://github.com/nodejs/node-gyp/pull/943)
+* [[`15fd56be3d`](https://github.com/nodejs/node-gyp/commit/15fd56be3d)] - Enable V8 deprecation warnings for native modules (Matt Loring) [#920](https://github.com/nodejs/node-gyp/pull/920)
+* [[`7f1c1b960c`](https://github.com/nodejs/node-gyp/commit/7f1c1b960c)] - **gyp**: improvements for android generator (Robert Chiras) [#935](https://github.com/nodejs/node-gyp/pull/935)
+* [[`088082766c`](https://github.com/nodejs/node-gyp/commit/088082766c)] - Update Windows install instructions (Sara Itani) [#867](https://github.com/nodejs/node-gyp/pull/867)
+* [[`625c1515f9`](https://github.com/nodejs/node-gyp/commit/625c1515f9)] - **gyp**: inherit CC/CXX for CC/CXX.host (Johan Bergström) [#908](https://github.com/nodejs/node-gyp/pull/908)
+* [[`3bcb1720e4`](https://github.com/nodejs/node-gyp/commit/3bcb1720e4)] - Add support for the Python launcher on Windows (Patrick Westerhoff) [#894](https://github.com/nodejs/node-gyp/pull/894
+
+## v3.3.1 2016-03-04
+
+* [[`a981ef847a`](https://github.com/nodejs/node-gyp/commit/a981ef847a)] - **gyp**: fix android generator (Robert Chiras) [#889](https://github.com/nodejs/node-gyp/pull/889)
+
+## v3.3.0 2016-02-16
+
+* [[`818d854a4d`](https://github.com/nodejs/node-gyp/commit/818d854a4d)] - Introduce NODEJS_ORG_MIRROR and IOJS_ORG_MIRROR (Rod Vagg) [#878](https://github.com/nodejs/node-gyp/pull/878)
+* [[`d1e4cc4b62`](https://github.com/nodejs/node-gyp/commit/d1e4cc4b62)] - **(SEMVER-MINOR)** Download headers tarball for ~0.12.10 || ~0.10.42 (Rod Vagg) [#877](https://github.com/nodejs/node-gyp/pull/877)
+* [[`6e28ad1bea`](https://github.com/nodejs/node-gyp/commit/6e28ad1bea)] - Allow for npmlog@2.x (Rebecca Turner) [#861](https://github.com/nodejs/node-gyp/pull/861)
+* [[`07371e5812`](https://github.com/nodejs/node-gyp/commit/07371e5812)] - Use -fPIC for NetBSD. (Marcin Cieślak) [#856](https://github.com/nodejs/node-gyp/pull/856)
+* [[`8c4b0ffa50`](https://github.com/nodejs/node-gyp/commit/8c4b0ffa50)] - **(SEMVER-MINOR)** Add --cafile command line option. (Ben Noordhuis) [#837](https://github.com/nodejs/node-gyp/pull/837)
+* [[`b3ad43498e`](https://github.com/nodejs/node-gyp/commit/b3ad43498e)] - **(SEMVER-MINOR)** Make download() function testable. (Ben Noordhuis) [#837](https://github.com/nodejs/node-gyp/pull/837)
+
+## v3.2.1 2015-12-03
+
+* [[`ab89b477c4`](https://github.com/nodejs/node-gyp/commit/ab89b477c4)] - Upgrade gyp to b3cef02. (Ben Noordhuis) [#831](https://github.com/nodejs/node-gyp/pull/831)
+* [[`90078ecb17`](https://github.com/nodejs/node-gyp/commit/90078ecb17)] - Define WIN32_LEAN_AND_MEAN conditionally. (Ben Noordhuis) [#824](https://github.com/nodejs/node-gyp/pull/824)
+
+## v3.2.0 2015-11-25
+
+* [[`268f1ca4c7`](https://github.com/nodejs/node-gyp/commit/268f1ca4c7)] - Use result of `which` when searching for python. (Refael Ackermann) [#668](https://github.com/nodejs/node-gyp/pull/668)
+* [[`817ed9bd78`](https://github.com/nodejs/node-gyp/commit/817ed9bd78)] - Add test for python executable search logic. (Ben Noordhuis) [#756](https://github.com/nodejs/node-gyp/pull/756)
+* [[`0e2dfda1f3`](https://github.com/nodejs/node-gyp/commit/0e2dfda1f3)] - Fix test/test-options when run through `npm test`. (Ben Noordhuis) [#755](https://github.com/nodejs/node-gyp/pull/755)
+* [[`9bfa0876b4`](https://github.com/nodejs/node-gyp/commit/9bfa0876b4)] - Add support for AIX (Michael Dawson) [#753](https://github.com/nodejs/node-gyp/pull/753)
+* [[`a8d441a0a2`](https://github.com/nodejs/node-gyp/commit/a8d441a0a2)] - Update README for Windows 10 support. (Jason Williams) [#766](https://github.com/nodejs/node-gyp/pull/766)
+* [[`d1d6015276`](https://github.com/nodejs/node-gyp/commit/d1d6015276)] - Update broken links and switch to HTTPS. (andrew morton) 
+
+## v3.1.0 2015-11-14
+
+* [[`9049241f91`](https://github.com/nodejs/node-gyp/commit/9049241f91)] - **gyp**: don't use links at all, just copy the files instead (Nathan Zadoks)
+* [[`8ef90348d1`](https://github.com/nodejs/node-gyp/commit/8ef90348d1)] - **gyp**: apply https://codereview.chromium.org/11361103/ (Nathan Rajlich)
+* [[`a2ed0df84e`](https://github.com/nodejs/node-gyp/commit/a2ed0df84e)] - **gyp**: always install into $PRODUCT_DIR (Nathan Rajlich)
+* [[`cc8b2fa83e`](https://github.com/nodejs/node-gyp/commit/cc8b2fa83e)] - Update gyp to b3cef02. (Imran Iqbal) [#781](https://github.com/nodejs/node-gyp/pull/781)
+* [[`f5d86eb84e`](https://github.com/nodejs/node-gyp/commit/f5d86eb84e)] - Update to tar@2.0.0. (Edgar Muentes) [#797](https://github.com/nodejs/node-gyp/pull/797)
+* [[`2ac7de02c4`](https://github.com/nodejs/node-gyp/commit/2ac7de02c4)] - Fix infinite loop with zero-length options. (Ben Noordhuis) [#745](https://github.com/nodejs/node-gyp/pull/745)
+* [[`101bed639b`](https://github.com/nodejs/node-gyp/commit/101bed639b)] - This platform value came from debian package, and now the value (Jérémy Lal) [#738](https://github.com/nodejs/node-gyp/pull/738)
+
+## v3.0.3 2015-09-14
+
+* [[`ad827cda30`](https://github.com/nodejs/node-gyp/commit/ad827cda30)] - tarballUrl global and && when checking for iojs (Lars-Magnus Skog) [#729](https://github.com/nodejs/node-gyp/pull/729)
+
+## v3.0.2 2015-09-12
+
+* [[`6e8c3bf3c6`](https://github.com/nodejs/node-gyp/commit/6e8c3bf3c6)] - add back support for passing additional cmdline args (Rod Vagg) [#723](https://github.com/nodejs/node-gyp/pull/723)
+* [[`ff82f2f3b9`](https://github.com/nodejs/node-gyp/commit/ff82f2f3b9)] - fixed broken link in docs to Visual Studio 2013 download (simon-p-r) [#722](https://github.com/nodejs/node-gyp/pull/722)
+
+## v3.0.1 2015-09-08
+
+* [[`846337e36b`](https://github.com/nodejs/node-gyp/commit/846337e36b)] - normalise versions for target == this comparison (Rod Vagg) [#716](https://github.com/nodejs/node-gyp/pull/716)
+
+## v3.0.0 2015-09-08
+
+* [[`9720d0373c`](https://github.com/nodejs/node-gyp/commit/9720d0373c)] - remove node_modules from tree (Rod Vagg) [#711](https://github.com/nodejs/node-gyp/pull/711)
+* [[`6dcf220db7`](https://github.com/nodejs/node-gyp/commit/6dcf220db7)] - test version major directly, don't use semver.satisfies() (Rod Vagg) [#711](https://github.com/nodejs/node-gyp/pull/711)
+* [[`938dd18d1c`](https://github.com/nodejs/node-gyp/commit/938dd18d1c)] - refactor for clarity, fix dist-url, add env var dist-url functionality (Rod Vagg) [#711](https://github.com/nodejs/node-gyp/pull/711)
+* [[`9e9df66a06`](https://github.com/nodejs/node-gyp/commit/9e9df66a06)] - use process.release, make aware of io.js & node v4 differences (Rod Vagg) [#711](https://github.com/nodejs/node-gyp/pull/711)
+* [[`1ea7ed01f4`](https://github.com/nodejs/node-gyp/commit/1ea7ed01f4)] - **deps**: update graceful-fs dependency to the latest (Sakthipriyan Vairamani) [#714](https://github.com/nodejs/node-gyp/pull/714)
+* [[`0fbc387b35`](https://github.com/nodejs/node-gyp/commit/0fbc387b35)] - Update repository URLs. (Ben Noordhuis) [#715](https://github.com/nodejs/node-gyp/pull/715)
+* [[`bbedb8868b`](https://github.com/nodejs/node-gyp/commit/bbedb8868b)] - **(SEMVER-MAJOR)** **win**: enable delay-load hook by default (Jeremiah Senkpiel) [#708](https://github.com/nodejs/node-gyp/pull/708)
+* [[`85ed107565`](https://github.com/nodejs/node-gyp/commit/85ed107565)] - Merge pull request #664 from othiym23/othiym23/allow-semver-5 (Nathan Rajlich)
+* [[`0c720d234c`](https://github.com/nodejs/node-gyp/commit/0c720d234c)] - allow semver@5 (Forrest L Norvell)
+
+## 2.0.2 / 2015-07-14
+
+  * Use HTTPS for dist url (#656, @SonicHedgehog)
+  * Merge pull request #648 from nevosegal/master
+  * Merge pull request #650 from magic890/patch-1
+  * Updated Installation section on README
+  * Updated link to gyp user documentation
+  * Fix download error message spelling (#643, @tomxtobin)
+  * Merge pull request #637 from lygstate/master
+  * Set NODE_GYP_DIR for addon.gypi to setting absolute path for
+    src/win_delay_load_hook.c, and fixes of the long relative path issue on Win32.
+    Fixes #636 (#637, @lygstate).
+
+## 2.0.1 / 2015-05-28
+
+  * configure: try/catch the semver range.test() call
+  * README: update for visual studio 2013 (#510, @samccone)
+
+## 2.0.0 / 2015-05-24
+
+  * configure: check for python2 executable by default, fallback to python
+  * configure: don't clobber existing $PYTHONPATH
+  * configure: use "path-array" for PYTHONPATH
+  * gyp: fix for non-acsii userprofile name on Windows
+  * gyp: always install into $PRODUCT_DIR
+  * gyp: apply https://codereview.chromium.org/11361103/
+  * gyp: don't use links at all, just copy the files instead
+  * gyp: update gyp to e1c8fcf7
+  * Updated README.md with updated Windows build info
+  * Show URL when a download fails
+  * package: add a "license" field
+  * move HMODULE m declaration to top
+  * Only add "-undefined dynamic_lookup" to loadable_module targets
+  * win: optionally allow node.exe/iojs.exe to be renamed
+  * Avoid downloading shasums if using tarPath
+  * Add target name preprocessor define: `NODE_GYP_MODULE_NAME`
+  * Show better error message in case of bad network settings
diff --git a/node_modules/node-gyp/CONTRIBUTING.md b/node_modules/node-gyp/CONTRIBUTING.md
new file mode 100644
index 0000000..c1c50ea
--- /dev/null
+++ b/node_modules/node-gyp/CONTRIBUTING.md
@@ -0,0 +1,34 @@
+# Contributing to node-gyp
+
+## Code of Conduct
+
+Please read the
+[Code of Conduct](https://github.com/nodejs/admin/blob/master/CODE_OF_CONDUCT.md)
+which explains the minimum behavior expectations for node-gyp contributors.
+
+<a id="developers-certificate-of-origin"></a>
+## Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+* (a) The contribution was created in whole or in part by me and I
+  have the right to submit it under the open source license
+  indicated in the file; or
+
+* (b) The contribution is based upon previous work that, to the best
+  of my knowledge, is covered under an appropriate open source
+  license and I have the right under that license to submit that
+  work with modifications, whether created in whole or in part
+  by me, under the same open source license (unless I am
+  permitted to submit under a different license), as indicated
+  in the file; or
+
+* (c) The contribution was provided directly to me by some other
+  person who certified (a), (b) or (c) and I have not modified
+  it.
+
+* (d) I understand and agree that this project and the contribution
+  are public and that a record of the contribution (including all
+  personal information I submit with it, including my sign-off) is
+  maintained indefinitely and may be redistributed consistent with
+  this project or the open source license(s) involved.
diff --git a/node_modules/node-gyp/LICENSE b/node_modules/node-gyp/LICENSE
new file mode 100644
index 0000000..2ea4dc5
--- /dev/null
+++ b/node_modules/node-gyp/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2012 Nathan Rajlich <nathan@tootallnate.net>
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/node-gyp/README.md b/node_modules/node-gyp/README.md
new file mode 100644
index 0000000..71eea0a
--- /dev/null
+++ b/node_modules/node-gyp/README.md
@@ -0,0 +1,256 @@
+# `node-gyp` - Node.js native addon build tool
+
+[![Build Status](https://github.com/nodejs/node-gyp/workflows/Tests/badge.svg?branch=master)](https://github.com/nodejs/node-gyp/actions?query=workflow%3ATests+branch%3Amaster)
+![npm](https://img.shields.io/npm/dm/node-gyp)
+
+`node-gyp` is a cross-platform command-line tool written in Node.js for
+compiling native addon modules for Node.js. It contains a vendored copy of the
+[gyp-next](https://github.com/nodejs/gyp-next) project that was previously used
+by the Chromium team, extended to support the development of Node.js native addons.
+
+Note that `node-gyp` is _not_ used to build Node.js itself.
+
+Multiple target versions of Node.js are supported (i.e. `0.8`, ..., `4`, `5`, `6`,
+etc.), regardless of what version of Node.js is actually installed on your system
+(`node-gyp` downloads the necessary development files or headers for the target version).
+
+## Features
+
+ * The same build commands work on any of the supported platforms
+ * Supports the targeting of different versions of Node.js
+
+## Installation
+
+You can install `node-gyp` using `npm`:
+
+``` bash
+npm install -g node-gyp
+```
+
+Depending on your operating system, you will need to install:
+
+### On Unix
+
+   * Python v3.6, v3.7, v3.8, or v3.9
+   * `make`
+   * A proper C/C++ compiler toolchain, like [GCC](https://gcc.gnu.org)
+
+### On macOS
+
+**ATTENTION**: If your Mac has been _upgraded_ to macOS Catalina (10.15), please read [macOS_Catalina.md](macOS_Catalina.md).
+
+   * Python v3.6, v3.7, v3.8, or v3.9
+   * [Xcode](https://developer.apple.com/xcode/download/)
+     * You also need to install the `XCode Command Line Tools` by running `xcode-select --install`. Alternatively, if you already have the full Xcode installed, you can find them under the menu `Xcode -> Open Developer Tool -> More Developer Tools...`. This step will install `clang`, `clang++`, and `make`.
+
+### On Windows
+
+Install the current version of Python from the [Microsoft Store package](https://docs.python.org/3/using/windows.html#the-microsoft-store-package).
+
+Install tools and configuration manually:
+   * Install Visual C++ Build Environment: [Visual Studio Build Tools](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=BuildTools)
+   (using "Visual C++ build tools" workload) or [Visual Studio Community](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=Community)
+   (using the "Desktop development with C++" workload)
+   * Launch cmd, `npm config set msvs_version 2017`
+
+   If the above steps didn't work for you, please visit [Microsoft's Node.js Guidelines for Windows](https://github.com/Microsoft/nodejs-guidelines/blob/master/windows-environment.md#compiling-native-addon-modules) for additional tips.
+
+   To target native ARM64 Node.js on Windows 10 on ARM, add the components "Visual C++ compilers and libraries for ARM64" and "Visual C++ ATL for ARM64".
+
+### Configuring Python Dependency
+
+`node-gyp` requires that you have installed a compatible version of Python, one of: v3.6, v3.7,
+v3.8, or v3.9. If you have multiple Python versions installed, you can identify which Python
+version `node-gyp` should use in one of the following ways:
+
+1. by setting the `--python` command-line option, e.g.:
+
+``` bash
+node-gyp <command> --python /path/to/executable/python
+```
+
+2. If `node-gyp` is called by way of `npm`, *and* you have multiple versions of
+Python installed, then you can set `npm`'s 'python' config key to the appropriate
+value:
+
+``` bash
+npm config set python /path/to/executable/python
+```
+
+3. If the `PYTHON` environment variable is set to the path of a Python executable,
+then that version will be used, if it is a compatible version.
+
+4. If the `NODE_GYP_FORCE_PYTHON` environment variable is set to the path of a
+Python executable, it will be used instead of any of the other configured or
+builtin Python search paths. If it's not a compatible version, no further
+searching will be done.
+
+### Build for Third Party Node.js Runtimes
+
+When building modules for thid party Node.js runtimes like Electron, which have
+different build configurations from the official Node.js distribution, you
+should use `--dist-url` or `--nodedir` flags to specify the headers of the
+runtime to build for.
+
+Also when `--dist-url` or `--nodedir` flags are passed, node-gyp will use the
+`config.gypi` shipped in the headers distribution to generate build
+configurations, which is different from the default mode that would use the
+`process.config` object of the running Node.js instance.
+
+Some old versions of Electron shipped malformed `config.gypi` in their headers
+distributions, and you might need to pass `--force-process-config` to node-gyp
+to work around configuration errors.
+
+## How to Use
+
+To compile your native addon, first go to its root directory:
+
+``` bash
+cd my_node_addon
+```
+
+The next step is to generate the appropriate project build files for the current
+platform. Use `configure` for that:
+
+``` bash
+node-gyp configure
+```
+
+Auto-detection fails for Visual C++ Build Tools 2015, so `--msvs_version=2015`
+needs to be added (not needed when run by npm as configured above):
+``` bash
+node-gyp configure --msvs_version=2015
+```
+
+__Note__: The `configure` step looks for a `binding.gyp` file in the current
+directory to process. See below for instructions on creating a `binding.gyp` file.
+
+Now you will have either a `Makefile` (on Unix platforms) or a `vcxproj` file
+(on Windows) in the `build/` directory. Next, invoke the `build` command:
+
+``` bash
+node-gyp build
+```
+
+Now you have your compiled `.node` bindings file! The compiled bindings end up
+in `build/Debug/` or `build/Release/`, depending on the build mode. At this point,
+you can require the `.node` file with Node.js and run your tests!
+
+__Note:__ To create a _Debug_ build of the bindings file, pass the `--debug` (or
+`-d`) switch when running either the `configure`, `build` or `rebuild` commands.
+
+## The `binding.gyp` file
+
+A `binding.gyp` file describes the configuration to build your module, in a
+JSON-like format. This file gets placed in the root of your package, alongside
+`package.json`.
+
+A barebones `gyp` file appropriate for building a Node.js addon could look like:
+
+```python
+{
+  "targets": [
+    {
+      "target_name": "binding",
+      "sources": [ "src/binding.cc" ]
+    }
+  ]
+}
+```
+
+## Further reading
+
+The **[docs](./docs/)** directory contains additional documentation on specific node-gyp topics that may be useful if you are experiencing problems installing or building addons using node-gyp.
+
+Some additional resources for Node.js native addons and writing `gyp` configuration files:
+
+ * ["Going Native" a nodeschool.io tutorial](http://nodeschool.io/#goingnative)
+ * ["Hello World" node addon example](https://github.com/nodejs/node/tree/master/test/addons/hello-world)
+ * [gyp user documentation](https://gyp.gsrc.io/docs/UserDocumentation.md)
+ * [gyp input format reference](https://gyp.gsrc.io/docs/InputFormatReference.md)
+ * [*"binding.gyp" files out in the wild* wiki page](./docs/binding.gyp-files-in-the-wild.md)
+
+## Commands
+
+`node-gyp` responds to the following commands:
+
+| **Command**   | **Description**
+|:--------------|:---------------------------------------------------------------
+| `help`        | Shows the help dialog
+| `build`       | Invokes `make`/`msbuild.exe` and builds the native addon
+| `clean`       | Removes the `build` directory if it exists
+| `configure`   | Generates project build files for the current platform
+| `rebuild`     | Runs `clean`, `configure` and `build` all in a row
+| `install`     | Installs Node.js header files for the given version
+| `list`        | Lists the currently installed Node.js header versions
+| `remove`      | Removes the Node.js header files for the given version
+
+
+## Command Options
+
+`node-gyp` accepts the following command options:
+
+| **Command**                       | **Description**
+|:----------------------------------|:------------------------------------------
+| `-j n`, `--jobs n`                | Run `make` in parallel. The value `max` will use all available CPU cores
+| `--target=v6.2.1`                 | Node.js version to build for (default is `process.version`)
+| `--silly`, `--loglevel=silly`     | Log all progress to console
+| `--verbose`, `--loglevel=verbose` | Log most progress to console
+| `--silent`, `--loglevel=silent`   | Don't log anything to console
+| `debug`, `--debug`                | Make Debug build (default is `Release`)
+| `--release`, `--no-debug`         | Make Release build
+| `-C $dir`, `--directory=$dir`     | Run command in different directory
+| `--make=$make`                    | Override `make` command (e.g. `gmake`)
+| `--thin=yes`                      | Enable thin static libraries
+| `--arch=$arch`                    | Set target architecture (e.g. ia32)
+| `--tarball=$path`                 | Get headers from a local tarball
+| `--devdir=$path`                  | SDK download directory (default is OS cache directory)
+| `--ensure`                        | Don't reinstall headers if already present
+| `--dist-url=$url`                 | Download header tarball from custom URL
+| `--proxy=$url`                    | Set HTTP(S) proxy for downloading header tarball
+| `--noproxy=$urls`                 | Set urls to ignore proxies when downloading header tarball
+| `--cafile=$cafile`                | Override default CA chain (to download tarball)
+| `--nodedir=$path`                 | Set the path to the node source code
+| `--python=$path`                  | Set path to the Python binary
+| `--msvs_version=$version`         | Set Visual Studio version (Windows only)
+| `--solution=$solution`            | Set Visual Studio Solution version (Windows only)
+| `--force-process-config`          | Force using runtime's `process.config` object to generate `config.gypi` file
+
+## Configuration
+
+### Environment variables
+
+Use the form `npm_config_OPTION_NAME` for any of the command options listed
+above (dashes in option names should be replaced by underscores).
+
+For example, to set `devdir` equal to `/tmp/.gyp`, you would:
+
+Run this on Unix:
+
+```bash
+export npm_config_devdir=/tmp/.gyp
+```
+
+Or this on Windows:
+
+```console
+set npm_config_devdir=c:\temp\.gyp
+```
+
+### `npm` configuration
+
+Use the form `OPTION_NAME` for any of the command options listed above.
+
+For example, to set `devdir` equal to `/tmp/.gyp`, you would run:
+
+```bash
+npm config set [--global] devdir /tmp/.gyp
+```
+
+**Note:** Configuration set via `npm` will only be used when `node-gyp`
+is run via `npm`, not when `node-gyp` is run directly.
+
+## License
+
+`node-gyp` is available under the MIT license. See the [LICENSE
+file](LICENSE) for details.
diff --git a/node_modules/node-gyp/addon.gypi b/node_modules/node-gyp/addon.gypi
new file mode 100644
index 0000000..9327b0d
--- /dev/null
+++ b/node_modules/node-gyp/addon.gypi
@@ -0,0 +1,185 @@
+{
+  'variables' : {
+    'node_engine_include_dir%': 'deps/v8/include',
+    'node_host_binary%': 'node',
+    'node_with_ltcg%': 'true',
+  },
+  'target_defaults': {
+    'type': 'loadable_module',
+    'win_delay_load_hook': 'true',
+    'product_prefix': '',
+
+    'conditions': [
+      [ 'node_engine=="chakracore"', {
+        'variables': {
+          'node_engine_include_dir%': 'deps/chakrashim/include'
+        },
+      }]
+    ],
+
+    'include_dirs': [
+      '<(node_root_dir)/include/node',
+      '<(node_root_dir)/src',
+      '<(node_root_dir)/deps/openssl/config',
+      '<(node_root_dir)/deps/openssl/openssl/include',
+      '<(node_root_dir)/deps/uv/include',
+      '<(node_root_dir)/deps/zlib',
+      '<(node_root_dir)/<(node_engine_include_dir)'
+    ],
+    'defines!': [
+      'BUILDING_UV_SHARED=1',  # Inherited from common.gypi.
+      'BUILDING_V8_SHARED=1',  # Inherited from common.gypi.
+    ],
+    'defines': [
+      'NODE_GYP_MODULE_NAME=>(_target_name)',
+      'USING_UV_SHARED=1',
+      'USING_V8_SHARED=1',
+      # Warn when using deprecated V8 APIs.
+      'V8_DEPRECATION_WARNINGS=1'
+    ],
+
+    'target_conditions': [
+      ['_type=="loadable_module"', {
+        'product_extension': 'node',
+        'defines': [
+          'BUILDING_NODE_EXTENSION'
+        ],
+        'xcode_settings': {
+          'OTHER_LDFLAGS': [
+            '-undefined dynamic_lookup'
+          ],
+        },
+      }],
+
+      ['_type=="static_library"', {
+        # set to `1` to *disable* the -T thin archive 'ld' flag.
+        # older linkers don't support this flag.
+        'standalone_static_library': '<(standalone_static_library)'
+      }],
+
+      ['_type!="executable"', {
+        'conditions': [
+          [ 'OS=="android"', {
+            'cflags!': [ '-fPIE' ],
+          }]
+        ]
+      }],
+
+      ['_win_delay_load_hook=="true"', {
+        # If the addon specifies `'win_delay_load_hook': 'true'` in its
+        # binding.gyp, link a delay-load hook into the DLL. This hook ensures
+        # that the addon will work regardless of whether the node/iojs binary
+        # is named node.exe, iojs.exe, or something else.
+        'conditions': [
+          [ 'OS=="win"', {
+            'defines': [ 'HOST_BINARY=\"<(node_host_binary)<(EXECUTABLE_SUFFIX)\"', ],
+            'sources': [
+              '<(node_gyp_dir)/src/win_delay_load_hook.cc',
+            ],
+            'msvs_settings': {
+              'VCLinkerTool': {
+                'DelayLoadDLLs': [ '<(node_host_binary)<(EXECUTABLE_SUFFIX)' ],
+                # Don't print a linker warning when no imports from either .exe
+                # are used.
+                'AdditionalOptions': [ '/ignore:4199' ],
+              },
+            },
+          }],
+        ],
+      }],
+    ],
+
+    'conditions': [
+      [ 'OS=="mac"', {
+        'defines': [
+          '_DARWIN_USE_64_BIT_INODE=1'
+        ],
+        'xcode_settings': {
+          'DYLIB_INSTALL_NAME_BASE': '@rpath'
+        },
+      }],
+      [ 'OS=="aix"', {
+        'ldflags': [
+          '-Wl,-bimport:<(node_exp_file)'
+        ],
+      }],
+      [ 'OS=="zos"', {
+        'cflags': [
+          '-q64',
+          '-Wc,DLL',
+          '-qlonglong',
+          '-qenum=int',
+          '-qxclang=-fexec-charset=ISO8859-1'
+        ],
+        'defines': [
+          '_ALL_SOURCE=1',
+          'MAP_FAILED=-1',
+          '_UNIX03_SOURCE=1'
+        ],
+        'ldflags': [
+          '-q64',
+          '<(node_exp_file)'
+        ],
+      }],
+      [ 'OS=="win"', {
+        'conditions': [
+          ['node_engine=="chakracore"', {
+            'library_dirs': [ '<(node_root_dir)/$(ConfigurationName)' ],
+            'libraries': [ '<@(node_engine_libs)' ],
+          }],
+          ['node_with_ltcg=="true"', {
+            'msvs_settings': {
+              'VCCLCompilerTool': {
+                'WholeProgramOptimization': 'true' # /GL, whole program optimization, needed for LTCG
+              },
+              'VCLibrarianTool': {
+                'AdditionalOptions': [
+                  '/LTCG:INCREMENTAL', # incremental link-time code generation
+                ]
+              },
+              'VCLinkerTool': {
+                'OptimizeReferences': 2, # /OPT:REF
+                'EnableCOMDATFolding': 2, # /OPT:ICF
+                'LinkIncremental': 1, # disable incremental linking
+                'AdditionalOptions': [
+                  '/LTCG:INCREMENTAL', # incremental link-time code generation
+                ]
+              }
+            }
+          }]
+        ],
+        'libraries': [
+          '-lkernel32.lib',
+          '-luser32.lib',
+          '-lgdi32.lib',
+          '-lwinspool.lib',
+          '-lcomdlg32.lib',
+          '-ladvapi32.lib',
+          '-lshell32.lib',
+          '-lole32.lib',
+          '-loleaut32.lib',
+          '-luuid.lib',
+          '-lodbc32.lib',
+          '-lDelayImp.lib',
+          '-l"<(node_lib_file)"'
+        ],
+        'msvs_disabled_warnings': [
+          # warning C4251: 'node::ObjectWrap::handle_' : class 'v8::Persistent<T>'
+          # needs to have dll-interface to be used by
+          # clients of class 'node::ObjectWrap'
+          4251
+        ],
+      }, {
+        # OS!="win"
+        'defines': [
+          '_LARGEFILE_SOURCE',
+          '_FILE_OFFSET_BITS=64'
+        ],
+      }],
+      [ 'OS in "freebsd openbsd netbsd solaris android" or \
+         (OS=="linux" and target_arch!="ia32")', {
+        'cflags': [ '-fPIC' ],
+      }],
+    ]
+  }
+}
diff --git a/node_modules/node-gyp/bin/node-gyp.js b/node_modules/node-gyp/bin/node-gyp.js
new file mode 100644
index 0000000..8652ea2
--- /dev/null
+++ b/node_modules/node-gyp/bin/node-gyp.js
@@ -0,0 +1,140 @@
+#!/usr/bin/env node
+
+'use strict'
+
+process.title = 'node-gyp'
+
+const envPaths = require('env-paths')
+const gyp = require('../')
+const log = require('npmlog')
+const os = require('os')
+
+/**
+ * Process and execute the selected commands.
+ */
+
+const prog = gyp()
+var completed = false
+prog.parseArgv(process.argv)
+prog.devDir = prog.opts.devdir
+
+var homeDir = os.homedir()
+if (prog.devDir) {
+  prog.devDir = prog.devDir.replace(/^~/, homeDir)
+} else if (homeDir) {
+  prog.devDir = envPaths('node-gyp', { suffix: '' }).cache
+} else {
+  throw new Error(
+    "node-gyp requires that the user's home directory is specified " +
+    'in either of the environmental variables HOME or USERPROFILE. ' +
+    'Overide with: --devdir /path/to/.node-gyp')
+}
+
+if (prog.todo.length === 0) {
+  if (~process.argv.indexOf('-v') || ~process.argv.indexOf('--version')) {
+    console.log('v%s', prog.version)
+  } else {
+    console.log('%s', prog.usage())
+  }
+  process.exit(0)
+}
+
+log.info('it worked if it ends with', 'ok')
+log.verbose('cli', process.argv)
+log.info('using', 'node-gyp@%s', prog.version)
+log.info('using', 'node@%s | %s | %s', process.versions.node, process.platform, process.arch)
+
+/**
+ * Change dir if -C/--directory was passed.
+ */
+
+var dir = prog.opts.directory
+if (dir) {
+  var fs = require('fs')
+  try {
+    var stat = fs.statSync(dir)
+    if (stat.isDirectory()) {
+      log.info('chdir', dir)
+      process.chdir(dir)
+    } else {
+      log.warn('chdir', dir + ' is not a directory')
+    }
+  } catch (e) {
+    if (e.code === 'ENOENT') {
+      log.warn('chdir', dir + ' is not a directory')
+    } else {
+      log.warn('chdir', 'error during chdir() "%s"', e.message)
+    }
+  }
+}
+
+function run () {
+  var command = prog.todo.shift()
+  if (!command) {
+    // done!
+    completed = true
+    log.info('ok')
+    return
+  }
+
+  prog.commands[command.name](command.args, function (err) {
+    if (err) {
+      log.error(command.name + ' error')
+      log.error('stack', err.stack)
+      errorMessage()
+      log.error('not ok')
+      return process.exit(1)
+    }
+    if (command.name === 'list') {
+      var versions = arguments[1]
+      if (versions.length > 0) {
+        versions.forEach(function (version) {
+          console.log(version)
+        })
+      } else {
+        console.log('No node development files installed. Use `node-gyp install` to install a version.')
+      }
+    } else if (arguments.length >= 2) {
+      console.log.apply(console, [].slice.call(arguments, 1))
+    }
+
+    // now run the next command in the queue
+    process.nextTick(run)
+  })
+}
+
+process.on('exit', function (code) {
+  if (!completed && !code) {
+    log.error('Completion callback never invoked!')
+    issueMessage()
+    process.exit(6)
+  }
+})
+
+process.on('uncaughtException', function (err) {
+  log.error('UNCAUGHT EXCEPTION')
+  log.error('stack', err.stack)
+  issueMessage()
+  process.exit(7)
+})
+
+function errorMessage () {
+  // copied from npm's lib/utils/error-handler.js
+  var os = require('os')
+  log.error('System', os.type() + ' ' + os.release())
+  log.error('command', process.argv
+    .map(JSON.stringify).join(' '))
+  log.error('cwd', process.cwd())
+  log.error('node -v', process.version)
+  log.error('node-gyp -v', 'v' + prog.package.version)
+}
+
+function issueMessage () {
+  errorMessage()
+  log.error('', ['Node-gyp failed to build your package.',
+    'Try to update npm and/or node-gyp and if it does not help file an issue with the package author.'
+  ].join('\n'))
+}
+
+// start running the given commands!
+run()
diff --git a/node_modules/node-gyp/docs/Common-issues.md b/node_modules/node-gyp/docs/Common-issues.md
new file mode 100644
index 0000000..ae05fe3
--- /dev/null
+++ b/node_modules/node-gyp/docs/Common-issues.md
@@ -0,0 +1,14 @@
+## Python Issues OSX
+
+Make sure you are using the native Python version in OSX.  If you use a MacPorts of HomeBrew version, you may run into problems.
+
+If you have issues with `execvp`, be sure to check your `$PYTHON` environment variable.  If it is not set to the native version, unset it and try again.
+
+Notes: https://gist.github.com/erichocean/5177582
+
+## npm ERR! `node-gyp rebuild`(Windows)
+* just install the build tools from [here](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=BuildTools)
+Please note the version as is required in below command e.g **2017**
+* Launch cmd, run `npm config set msvs_version 2017`
+* close and open new CMD/terminal and all is well :100: 
+
diff --git a/node_modules/node-gyp/docs/Error-pre-versions-of-node-cannot-be-installed.md b/node_modules/node-gyp/docs/Error-pre-versions-of-node-cannot-be-installed.md
new file mode 100644
index 0000000..c1e1158
--- /dev/null
+++ b/node_modules/node-gyp/docs/Error-pre-versions-of-node-cannot-be-installed.md
@@ -0,0 +1,94 @@
+When using `node-gyp` you might see an error like this when attempting to compile/install a node.js native addon:
+
+```
+$ npm install bcrypt
+npm http GET https://registry.npmjs.org/bcrypt/0.7.5
+npm http 304 https://registry.npmjs.org/bcrypt/0.7.5
+npm http GET https://registry.npmjs.org/bindings/1.0.0
+npm http 304 https://registry.npmjs.org/bindings/1.0.0
+
+> bcrypt@0.7.5 install /home/ubuntu/public/song-swap/node_modules/bcrypt
+> node-gyp rebuild
+
+gyp ERR! configure error
+gyp ERR! stack Error: "pre" versions of node cannot be installed, use the --nodedir flag instead
+gyp ERR! stack     at install (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/install.js:69:16)
+gyp ERR! stack     at Object.self.commands.(anonymous function) [as install] (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/node-gyp.js:56:37)
+gyp ERR! stack     at getNodeDir (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:219:20)
+gyp ERR! stack     at /usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:105:9
+gyp ERR! stack     at ChildProcess.exithandler (child_process.js:630:7)
+gyp ERR! stack     at ChildProcess.EventEmitter.emit (events.js:99:17)
+gyp ERR! stack     at maybeClose (child_process.js:730:16)
+gyp ERR! stack     at Process.ChildProcess._handle.onexit (child_process.js:797:5)
+gyp ERR! System Linux 3.5.0-21-generic
+gyp ERR! command "node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
+gyp ERR! cwd /home/ubuntu/public/song-swap/node_modules/bcrypt
+gyp ERR! node -v v0.11.2-pre
+gyp ERR! node-gyp -v v0.9.5
+gyp ERR! not ok
+npm ERR! bcrypt@0.7.5 install: `node-gyp rebuild`
+npm ERR! `sh "-c" "node-gyp rebuild"` failed with 1
+npm ERR!
+npm ERR! Failed at the bcrypt@0.7.5 install script.
+npm ERR! This is most likely a problem with the bcrypt package,
+npm ERR! not with npm itself.
+npm ERR! Tell the author that this fails on your system:
+npm ERR!     node-gyp rebuild
+npm ERR! You can get their info via:
+npm ERR!     npm owner ls bcrypt
+npm ERR! There is likely additional logging output above.
+
+npm ERR! System Linux 3.5.0-21-generic
+npm ERR! command "/usr/local/bin/node" "/usr/local/bin/npm" "install" "bcrypt"
+npm ERR! cwd /home/ubuntu/public/song-swap
+npm ERR! node -v v0.11.2-pre
+npm ERR! npm -v 1.2.18
+npm ERR! code ELIFECYCLE
+npm ERR!
+npm ERR! Additional logging details can be found in:
+npm ERR!     /home/ubuntu/public/song-swap/npm-debug.log
+npm ERR! not ok code 0
+```
+
+The main error here is:
+
+```
+Error: "pre" versions of node cannot be installed, use the --nodedir flag instead
+```
+
+This error is caused when you attempt to compile a native addon using a version of node.js with `-pre` at the end of the version number:
+
+``` bash
+$ node -v
+v0.10.4-pre
+```
+
+## How to avoid (the short answer)
+
+To avoid this error completely just use a stable release of node.js. i.e. `v0.10.4`, and __not__ `v0.10.4-pre`.
+
+## How to fix (the long answer)
+
+This error happens because `node-gyp` does not know what header files were used to compile your "pre" version of node, and therefore it needs you to specify the node source code directory path using the `--nodedir` flag.
+
+For example, if I compiled my development ("pre") version of node.js using the source code in `/Users/nrajlich/node`, then I could invoke `node-gyp` like:
+
+``` bash
+$ node-gyp rebuild --nodedir=/Users/nrajlich/node
+```
+
+Or install an native addon through `npm` like:
+
+``` bash
+$ npm install bcrypt --nodedir=/Users/nrajlich/node
+```
+
+### Always use `--nodedir`
+
+__Note:__ This is for advanced users who use `-pre` versions of node more often than tagged releases.
+
+If you're invoking `node-gyp` through `npm`, then you can leverage `npm`'s configuration system and not have to specify the `--nodedir` flag all the time:
+
+``` bash
+$ npm config set nodedir /Users/nrajlich/node
+```
\ No newline at end of file
diff --git a/node_modules/node-gyp/docs/Home.md b/node_modules/node-gyp/docs/Home.md
new file mode 100644
index 0000000..fe09986
--- /dev/null
+++ b/node_modules/node-gyp/docs/Home.md
@@ -0,0 +1,7 @@
+Welcome to the node-gyp wiki!
+
+ * [["binding.gyp" files out in the wild]]
+ * [[Linking to OpenSSL]]
+ * [[Common Issues]]
+ * [[Updating npm's bundled node-gyp]]
+ * [[Error: "pre" versions of node cannot be installed]]
diff --git a/node_modules/node-gyp/docs/Linking-to-OpenSSL.md b/node_modules/node-gyp/docs/Linking-to-OpenSSL.md
new file mode 100644
index 0000000..ec80929
--- /dev/null
+++ b/node_modules/node-gyp/docs/Linking-to-OpenSSL.md
@@ -0,0 +1,86 @@
+A handful of native addons require linking to OpenSSL in one way or another. This introduces a small challenge since node will sometimes bundle OpenSSL statically (the default for node >= v0.8.x), or sometimes dynamically link to the system OpenSSL (default for node <= v0.6.x).
+
+Good native addons should account for both scenarios. It's recommended that you use the `binding.gyp` file provided below as a starting-point for any addon that needs to use OpenSSL:
+
+``` python
+{
+  'variables': {
+    # node v0.6.x doesn't give us its build variables,
+    # but on Unix it was only possible to use the system OpenSSL library,
+    # so default the variable to "true", v0.8.x node and up will overwrite it.
+    'node_shared_openssl%': 'true'
+  },
+  'targets': [
+    {
+      'target_name': 'binding',
+      'sources': [
+        'src/binding.cc'
+      ],
+      'conditions': [
+        ['node_shared_openssl=="false"', {
+          # so when "node_shared_openssl" is "false", then OpenSSL has been
+          # bundled into the node executable. So we need to include the same
+          # header files that were used when building node.
+          'include_dirs': [
+            '<(node_root_dir)/deps/openssl/openssl/include'
+          ],
+          "conditions" : [
+            ["target_arch=='ia32'", {
+              "include_dirs": [ "<(node_root_dir)/deps/openssl/config/piii" ]
+            }],
+            ["target_arch=='x64'", {
+              "include_dirs": [ "<(node_root_dir)/deps/openssl/config/k8" ]
+            }],
+            ["target_arch=='arm'", {
+              "include_dirs": [ "<(node_root_dir)/deps/openssl/config/arm" ]
+            }]
+          ]
+        }]
+      ]
+    }
+  ]
+}
+```
+
+This ensures that when OpenSSL is statically linked into `node` then, the bundled OpenSSL headers are included, but when the system OpenSSL is in use, then only those headers will be used.
+
+## Windows?
+
+As you can see this baseline `binding.gyp` file only accounts for the Unix scenario. Currently on Windows the situation is a little less ideal. On Windows, OpenSSL is _always_ statically compiled into the `node` executable, so ideally it would be possible to use that copy of OpenSSL when building native addons.
+
+Unfortunately it doesn't seem like that is possible at the moment, as there would need to be tweaks made to the generated `node.lib` file to include the openssl glue functions, or a new `openssl.lib` file would need to be created during the node build. I'm not sure which is the easiest/most feasible.
+
+In the meantime, one possible solution is using another copy of OpenSSL, which is what [`node-bcrypt`](https://github.com/ncb000gt/node.bcrypt.js) currently does. Adding something like this to your `binding.gyp` file's `"conditions"` block would enable this:
+
+``` python
+    [ 'OS=="win"', {
+      'conditions': [
+        # "openssl_root" is the directory on Windows of the OpenSSL files.
+        # Check the "target_arch" variable to set good default values for
+        # both 64-bit and 32-bit builds of the module.
+        ['target_arch=="x64"', {
+          'variables': {
+            'openssl_root%': 'C:/OpenSSL-Win64'
+          },
+        }, {
+          'variables': {
+            'openssl_root%': 'C:/OpenSSL-Win32'
+          },
+        }],
+      ],
+      'libraries': [ 
+        '-l<(openssl_root)/lib/libeay32.lib',
+      ],
+      'include_dirs': [
+        '<(openssl_root)/include',
+      ],
+    }]
+```
+
+Now you can direct your users to install OpenSSL on Windows from here (be sure to tell them to install the 64-bit version if they're compiling against a 64-bit version of node): http://slproweb.com/products/Win32OpenSSL.html
+
+Also note that both `node-gyp` and `npm` allow you to overwrite that default `openssl_root` variable on the command line:
+
+``` bash
+$ node-gyp rebuild --openssl-root="C:\Users\Nathan\Desktop\openssl"
+```
\ No newline at end of file
diff --git a/node_modules/node-gyp/docs/Updating-npm-bundled-node-gyp.md b/node_modules/node-gyp/docs/Updating-npm-bundled-node-gyp.md
new file mode 100644
index 0000000..0777687
--- /dev/null
+++ b/node_modules/node-gyp/docs/Updating-npm-bundled-node-gyp.md
@@ -0,0 +1,45 @@
+# Updating the npm-bundled version of node-gyp
+
+[Many issues](https://github.com/nodejs/node-gyp/labels/ERR%21%20node-gyp%20-v%20%3C%3D%20v5.1.0) are opened by users who are
+not running a [current version of node-gyp](https://github.com/nodejs/node-gyp/releases).
+
+`npm` bundles its own, internal, copy of `node-gyp`. This internal copy is independent of any globally installed copy of node-gyp that
+may have been installed via `npm install -g node-gyp`.
+
+Generally, npm's library files are installed inside your global "node_modules", where npm is installed (run `npm prefix` and add `lib/node_modules`, or just `node_modules` for Windows). There are some exceptions to this. Inside this global `node_modules/` there will be an `npm/` directory and inside this you'll find a `node_modules/node-gyp/` directory. So it may look something like `/usr/local/lib/node_modules/npm/node_modules/node-gyp/`. This is the version of node-gyp that ships with npm.
+
+When you install a _new_ version of node-gyp outside of npm, it'll go into your global node_modules, but not under the `npm/node_modules`. So that may look like `/usr/local/lib/node_modules/node-gyp/`. It'll have the `node-gyp` executable linked into your `PATH` so running `node-gyp` will use this version.
+
+The catch is that npm won't use this version unless you tell it to, it'll keep on using the one you have installed. You need to instruct it to by setting the `node_gyp` config variable (which goes into your `~/.npmrc`). You do this by running the `npm config set` command as below. Then npm will use the command in the path you supply whenever it needs to build a native addon.
+
+**Important**: You also need to remember to unset this when you upgrade npm with a newer version of node-gyp, or you have to manually keep your globally installed node-gyp to date. See "Undo" below.
+
+## Linux and macOS
+```
+npm install --global node-gyp@latest
+npm config set node_gyp $(npm prefix -g)/lib/node_modules/node-gyp/bin/node-gyp.js
+```
+
+`sudo` may be required for the first command if you get a permission error.
+
+## Windows
+
+### Windows Command Prompt
+```
+npm install --global node-gyp@latest
+for /f "delims=" %P in ('npm prefix -g') do npm config set node_gyp "%P\node_modules\node-gyp\bin\node-gyp.js"
+```
+
+### Powershell
+```
+npm install --global node-gyp@latest
+npm prefix -g | % {npm config set node_gyp "$_\node_modules\node-gyp\bin\node-gyp.js"}
+```
+
+## Undo
+**Beware** if you don't unset the `node_gyp` config option, npm will continue to use the globally installed version of node-gyp rather than the one it ships with, which may end up being newer.
+
+```
+npm config delete node_gyp
+npm uninstall --global node-gyp
+```
diff --git a/node_modules/node-gyp/docs/binding.gyp-files-in-the-wild.md b/node_modules/node-gyp/docs/binding.gyp-files-in-the-wild.md
new file mode 100644
index 0000000..c4603dd
--- /dev/null
+++ b/node_modules/node-gyp/docs/binding.gyp-files-in-the-wild.md
@@ -0,0 +1,48 @@
+This page contains links to some examples of existing `binding.gyp` files that other node modules are using. Take a look at them for inspiration.
+
+To add to this page, just add the link to the project's `binding.gyp` file below:
+
+ * [ons](https://github.com/XadillaX/aliyun-ons/blob/master/binding.gyp)
+ * [thmclrx](https://github.com/XadillaX/thmclrx/blob/master/binding.gyp)
+ * [libxmljs](https://github.com/polotek/libxmljs/blob/master/binding.gyp)
+ * [node-buffertools](https://github.com/bnoordhuis/node-buffertools/blob/master/binding.gyp)
+ * [node-canvas](https://github.com/LearnBoost/node-canvas/blob/master/binding.gyp)
+ * [node-ffi](https://github.com/rbranson/node-ffi/blob/master/binding.gyp) + [libffi](https://github.com/rbranson/node-ffi/blob/master/deps/libffi/libffi.gyp)
+ * [node-time](https://github.com/TooTallNate/node-time/blob/master/binding.gyp)
+ * [node-sass](https://github.com/sass/node-sass/blob/master/binding.gyp) + [libsass](https://github.com/sass/node-sass/blob/master/src/libsass.gyp)
+ * [node-serialport](https://github.com/voodootikigod/node-serialport/blob/master/binding.gyp)
+ * [node-weak](https://github.com/TooTallNate/node-weak/blob/master/binding.gyp)
+ * [pty.js](https://github.com/chjj/pty.js/blob/master/binding.gyp)
+ * [ref](https://github.com/TooTallNate/ref/blob/master/binding.gyp)
+ * [appjs](https://github.com/milani/appjs/blob/master/binding.gyp)
+ * [nwm](https://github.com/mixu/nwm/blob/master/binding.gyp)
+ * [bcrypt](https://github.com/ncb000gt/node.bcrypt.js/blob/master/binding.gyp)
+ * [nk-mysql](https://github.com/mmod/nodamysql/blob/master/binding.gyp)
+ * [nk-xrm-installer](https://github.com/mmod/nk-xrm-installer/blob/master/binding.gyp) + [includable.gypi](https://github.com/mmod/nk-xrm-installer/blob/master/includable.gypi) + [unpack.py](https://github.com/mmod/nk-xrm-installer/blob/master/unpack.py) + [disburse.py](https://github.com/mmod/nk-xrm-installer/blob/master/disburse.py)   
+   <sub>.py files above provide complete reference for examples of fetching source via http, extracting, and moving files.</sub>
+ * [node-memwatch](https://github.com/lloyd/node-memwatch/blob/master/binding.gyp)
+ * [node-ip2location](https://github.com/bolgovr/node-ip2location/blob/master/binding.gyp)
+ * [node-midi](https://github.com/justinlatimer/node-midi/blob/master/binding.gyp)
+ * [node-sqlite3](https://github.com/developmentseed/node-sqlite3/blob/master/binding.gyp) + [libsqlite3](https://github.com/developmentseed/node-sqlite3/blob/master/deps/sqlite3.gyp)
+ * [node-zipfile](https://github.com/mapbox/node-zipfile/blob/master/binding.gyp)
+ * [node-mapnik](https://github.com/mapnik/node-mapnik/blob/master/binding.gyp)
+ * [node-inotify](https://github.com/c4milo/node-inotify/blob/master/binding.gyp)
+ * [v8-profiler](https://github.com/c4milo/v8-profiler/blob/master/binding.gyp)
+ * [airtunes](https://github.com/radioline/node_airtunes/blob/master/binding.gyp)
+ * [node-fann](https://github.com/c4milo/node-fann/blob/master/binding.gyp)
+ * [node-talib](https://github.com/oransel/node-talib/blob/master/binding.gyp)
+ * [node-leveldown](https://github.com/rvagg/node-leveldown/blob/master/binding.gyp) + [leveldb.gyp](https://github.com/rvagg/node-leveldown/blob/master/deps/leveldb/leveldb.gyp) + [snappy.gyp](https://github.com/rvagg/node-leveldown/blob/master/deps/snappy/snappy.gyp)
+ * [node-expat](https://github.com/astro/node-expat/blob/master/binding.gyp) + [libexpat](https://github.com/astro/node-expat/blob/master/deps/libexpat/libexpat.gyp)
+ * [node-openvg-canvas](https://github.com/luismreis/node-openvg-canvas/blob/master/binding.gyp) + [node-openvg](https://github.com/luismreis/node-openvg/blob/master/binding.gyp)
+ * [node-cryptopp](https://github.com/BatikhSouri/node-cryptopp/blob/master/binding.gyp)
+ * [topcube](https://github.com/creationix/topcube/blob/master/binding.gyp)
+ * [node-osmium](https://github.com/osmcode/node-osmium/blob/master/binding.gyp)
+ * [node-osrm](https://github.com/DennisOSRM/node-osrm)
+ * [node-oracle](https://github.com/joeferner/node-oracle/blob/master/binding.gyp)
+ * [node-process-list](https://github.com/ReklatsMasters/node-process-list/blob/master/binding.gyp)
+ * [node-nanomsg](https://github.com/nickdesaulniers/node-nanomsg/blob/master/binding.gyp)
+ * [Ghostscript4JS](https://github.com/NickNaso/ghostscript4js/blob/master/binding.gyp)
+ * [nodecv](https://github.com/xudafeng/nodecv/blob/master/binding.gyp)
+ * [magick-cli](https://github.com/NickNaso/magick-cli/blob/master/binding.gyp)
+ * [sharp](https://github.com/lovell/sharp/blob/master/binding.gyp)
+ * [krb5](https://github.com/adaltas/node-krb5/blob/master/binding.gyp)
\ No newline at end of file
diff --git a/node_modules/node-gyp/gyp/.flake8 b/node_modules/node-gyp/gyp/.flake8
new file mode 100644
index 0000000..ea0c768
--- /dev/null
+++ b/node_modules/node-gyp/gyp/.flake8
@@ -0,0 +1,4 @@
+[flake8]
+max-complexity = 101
+max-line-length = 88
+extend-ignore = E203  # whitespace before ':' to agree with psf/black
diff --git a/node_modules/node-gyp/gyp/.github/workflows/Python_tests.yml b/node_modules/node-gyp/gyp/.github/workflows/Python_tests.yml
new file mode 100644
index 0000000..92303b6
--- /dev/null
+++ b/node_modules/node-gyp/gyp/.github/workflows/Python_tests.yml
@@ -0,0 +1,30 @@
+# TODO: Enable os: windows-latest
+# TODO: Enable pytest --doctest-modules
+
+name: Python_tests
+on: [push, pull_request]
+jobs:
+  Python_tests:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      max-parallel: 8
+      matrix:
+        os: [macos-latest, ubuntu-latest] # , windows-latest]
+        python-version: [3.6, 3.7, 3.8, 3.9]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements_dev.txt
+      - name: Lint with flake8
+        run: flake8 . --ignore=E203,W503  --max-complexity=101 --max-line-length=88 --show-source --statistics
+      - name: Test with pytest
+        run: pytest
+      # - name: Run doctests with pytest
+      #   run: pytest --doctest-modules
diff --git a/node_modules/node-gyp/gyp/.github/workflows/node-gyp.yml b/node_modules/node-gyp/gyp/.github/workflows/node-gyp.yml
new file mode 100644
index 0000000..bd7c85f
--- /dev/null
+++ b/node_modules/node-gyp/gyp/.github/workflows/node-gyp.yml
@@ -0,0 +1,42 @@
+name: node-gyp integration
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, ubuntu-latest, windows-latest]
+        python: [3.6, 3.9]
+
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Clone gyp-next
+        uses: actions/checkout@v2
+        with:
+          path: gyp-next
+      - name: Clone nodejs/node-gyp
+        uses: actions/checkout@v2
+        with:
+          repository: nodejs/node-gyp
+          path: node-gyp
+      - uses: actions/setup-node@v2
+        with:
+          node-version: 14.x
+      - uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python }}
+      - name: Install dependencies
+        run: |
+          cd node-gyp
+          npm install --no-progress
+      - name: Replace gyp in node-gyp
+        shell: bash
+        run: |
+          rm -rf node-gyp/gyp
+          cp -r gyp-next node-gyp/gyp
+      - name: Run tests
+        run: |
+          cd node-gyp
+          npm test
diff --git a/node_modules/node-gyp/gyp/.github/workflows/nodejs-windows.yml b/node_modules/node-gyp/gyp/.github/workflows/nodejs-windows.yml
new file mode 100644
index 0000000..fffe96e
--- /dev/null
+++ b/node_modules/node-gyp/gyp/.github/workflows/nodejs-windows.yml
@@ -0,0 +1,27 @@
+name: Node.js Windows integration
+
+on: [push, pull_request]
+
+jobs:
+  build-windows:
+    runs-on: windows-latest
+    steps:
+      - name: Clone gyp-next
+        uses: actions/checkout@v2
+        with:
+          path: gyp-next
+      - name: Clone nodejs/node
+        uses: actions/checkout@v2
+        with:
+          repository: nodejs/node
+          path: node
+      - name: Install deps
+        run: choco install nasm
+      - name: Replace gyp in Node.js
+        run: |
+          rm -Recurse node/tools/gyp
+          cp -Recurse gyp-next node/tools/gyp
+      - name: Build Node.js
+        run: |
+          cd node
+          ./vcbuild.bat
diff --git a/node_modules/node-gyp/gyp/.github/workflows/release-please.yml b/node_modules/node-gyp/gyp/.github/workflows/release-please.yml
new file mode 100644
index 0000000..288afdb
--- /dev/null
+++ b/node_modules/node-gyp/gyp/.github/workflows/release-please.yml
@@ -0,0 +1,16 @@
+on:
+  push:
+    branches:
+      - main
+
+name: release-please
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: GoogleCloudPlatform/release-please-action@v2
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          release-type: python
+          package-name: gyp-next
+          bump-minor-pre-major: Yes
diff --git a/node_modules/node-gyp/gyp/AUTHORS b/node_modules/node-gyp/gyp/AUTHORS
new file mode 100644
index 0000000..f49a357
--- /dev/null
+++ b/node_modules/node-gyp/gyp/AUTHORS
@@ -0,0 +1,16 @@
+# Names should be added to this file like so:
+# Name or Organization <email address>
+
+Google Inc. <*@google.com>
+Bloomberg Finance L.P. <*@bloomberg.net>
+IBM Inc. <*@*.ibm.com>
+Yandex LLC <*@yandex-team.ru>
+
+Steven Knight <knight@baldmt.com>
+Ryan Norton <rnorton10@gmail.com>
+David J. Sankel <david@sankelsoftware.com>
+Eric N. Vander Weele <ericvw@gmail.com>
+Tom Freudenberg <th.freudenberg@gmail.com>
+Julien Brianceau <jbriance@cisco.com>
+Refael Ackermann <refack@gmail.com>
+Ujjwal Sharma <ryzokuken@disroot.org>
diff --git a/node_modules/node-gyp/gyp/CHANGELOG.md b/node_modules/node-gyp/gyp/CHANGELOG.md
new file mode 100644
index 0000000..b7d55ed
--- /dev/null
+++ b/node_modules/node-gyp/gyp/CHANGELOG.md
@@ -0,0 +1,177 @@
+# Changelog
+
+## [0.10.0](https://www.github.com/nodejs/gyp-next/compare/v0.9.6...v0.10.0) (2021-08-26)
+
+
+### Features
+
+* **msvs:** add support for Visual Studio 2022 ([#124](https://www.github.com/nodejs/gyp-next/issues/124)) ([4bd9215](https://www.github.com/nodejs/gyp-next/commit/4bd9215c44d300f06e916aec1d6327c22b78272d))
+
+### [0.9.6](https://www.github.com/nodejs/gyp-next/compare/v0.9.5...v0.9.6) (2021-08-23)
+
+
+### Bug Fixes
+
+* align flake8 test ([#122](https://www.github.com/nodejs/gyp-next/issues/122)) ([f1faa8d](https://www.github.com/nodejs/gyp-next/commit/f1faa8d3081e1a47e917ff910892f00dff16cf8a))
+* **msvs:** fix paths again in action command arguments ([#121](https://www.github.com/nodejs/gyp-next/issues/121)) ([7159dfb](https://www.github.com/nodejs/gyp-next/commit/7159dfbc5758c9ec717e215f2c36daf482c846a1))
+
+### [0.9.5](https://www.github.com/nodejs/gyp-next/compare/v0.9.4...v0.9.5) (2021-08-18)
+
+
+### Bug Fixes
+
+* add python 3.6 to node-gyp integration test ([3462d4c](https://www.github.com/nodejs/gyp-next/commit/3462d4ce3c31cce747513dc7ca9760c81d57c60e))
+* revert for windows compatibility ([d078e7d](https://www.github.com/nodejs/gyp-next/commit/d078e7d7ae080ddae243188f6415f940376a7368))
+* support msvs_quote_cmd in ninja generator ([#117](https://www.github.com/nodejs/gyp-next/issues/117)) ([46486ac](https://www.github.com/nodejs/gyp-next/commit/46486ac6e9329529d51061e006a5b39631e46729))
+
+### [0.9.4](https://www.github.com/nodejs/gyp-next/compare/v0.9.3...v0.9.4) (2021-08-09)
+
+
+### Bug Fixes
+
+* .S is an extension for asm file on Windows ([#115](https://www.github.com/nodejs/gyp-next/issues/115)) ([d2fad44](https://www.github.com/nodejs/gyp-next/commit/d2fad44ef3a79ca8900f1307060153ded57053fc))
+
+### [0.9.3](https://www.github.com/nodejs/gyp-next/compare/v0.9.2...v0.9.3) (2021-07-07)
+
+
+### Bug Fixes
+
+* build failure with ninja and Python 3 on Windows ([#113](https://www.github.com/nodejs/gyp-next/issues/113)) ([c172d10](https://www.github.com/nodejs/gyp-next/commit/c172d105deff5db4244e583942215918fa80dd3c))
+
+### [0.9.2](https://www.github.com/nodejs/gyp-next/compare/v0.9.1...v0.9.2) (2021-05-21)
+
+
+### Bug Fixes
+
+* add support of utf8 encoding ([#105](https://www.github.com/nodejs/gyp-next/issues/105)) ([4d0f93c](https://www.github.com/nodejs/gyp-next/commit/4d0f93c249286d1f0c0f665f5fe7346119f98cf1))
+
+### [0.9.1](https://www.github.com/nodejs/gyp-next/compare/v0.9.0...v0.9.1) (2021-05-14)
+
+
+### Bug Fixes
+
+* py lint ([3b6a8ee](https://www.github.com/nodejs/gyp-next/commit/3b6a8ee7a66193a8a6867eba9e1d2b70bdf04402))
+
+## [0.9.0](https://www.github.com/nodejs/gyp-next/compare/v0.8.1...v0.9.0) (2021-05-13)
+
+
+### Features
+
+* use LDFLAGS_host for host toolset ([#98](https://www.github.com/nodejs/gyp-next/issues/98)) ([bea5c7b](https://www.github.com/nodejs/gyp-next/commit/bea5c7bd67d6ad32acbdce79767a5481c70675a2))
+
+
+### Bug Fixes
+
+* msvs.py: remove overindentation ([#102](https://www.github.com/nodejs/gyp-next/issues/102)) ([3f83e99](https://www.github.com/nodejs/gyp-next/commit/3f83e99056d004d9579ceb786e06b624ddc36529))
+* update gyp.el to change case to cl-case ([#93](https://www.github.com/nodejs/gyp-next/issues/93)) ([13d5b66](https://www.github.com/nodejs/gyp-next/commit/13d5b66aab35985af9c2fb1174fdc6e1c1407ecc))
+
+### [0.8.1](https://www.github.com/nodejs/gyp-next/compare/v0.8.0...v0.8.1) (2021-02-18)
+
+
+### Bug Fixes
+
+* update shebang lines from python to python3 ([#94](https://www.github.com/nodejs/gyp-next/issues/94)) ([a1b0d41](https://www.github.com/nodejs/gyp-next/commit/a1b0d4171a8049a4ab7a614202063dec332f2df4))
+
+## [0.8.0](https://www.github.com/nodejs/gyp-next/compare/v0.7.0...v0.8.0) (2021-01-15)
+
+
+### ⚠ BREAKING CHANGES
+
+* remove support for Python 2
+
+### Bug Fixes
+
+* revert posix build job ([#86](https://www.github.com/nodejs/gyp-next/issues/86)) ([39dc34f](https://www.github.com/nodejs/gyp-next/commit/39dc34f0799c074624005fb9bbccf6e028607f9d))
+
+
+### gyp
+
+* Remove support for Python 2 ([#88](https://www.github.com/nodejs/gyp-next/issues/88)) ([22e4654](https://www.github.com/nodejs/gyp-next/commit/22e465426fd892403c95534229af819a99c3f8dc))
+
+## [0.7.0](https://www.github.com/nodejs/gyp-next/compare/v0.6.2...v0.7.0) (2020-12-17)
+
+
+### ⚠ BREAKING CHANGES
+
+* **msvs:** On Windows, arguments passed to the "action" commands are no longer transformed to replace slashes with backslashes.
+
+### Features
+
+* **xcode:** --cross-compiling overrides arch-specific settings ([973bae0](https://www.github.com/nodejs/gyp-next/commit/973bae0b7b08be7b680ecae9565fbd04b3e0787d))
+
+
+### Bug Fixes
+
+* **msvs:** do not fix paths in action command arguments ([fc22f83](https://www.github.com/nodejs/gyp-next/commit/fc22f8335e2016da4aae4f4233074bd651d2faea))
+* cmake on python 3 ([fd61f5f](https://www.github.com/nodejs/gyp-next/commit/fd61f5faa5275ec8fc98e3c7868c0dd46f109540))
+* ValueError: invalid mode: 'rU' while trying to load binding.gyp ([d0504e6](https://www.github.com/nodejs/gyp-next/commit/d0504e6700ce48f44957a4d5891b142a60be946f))
+* xcode cmake parsing ([eefe8d1](https://www.github.com/nodejs/gyp-next/commit/eefe8d10e99863bc4ac7e2ed32facd608d400d4b))
+
+### [0.6.2](https://www.github.com/nodejs/gyp-next/compare/v0.6.1...v0.6.2) (2020-10-16)
+
+
+### Bug Fixes
+
+* do not rewrite absolute paths to avoid long paths ([#74](https://www.github.com/nodejs/gyp-next/issues/74)) ([c2ccc1a](https://www.github.com/nodejs/gyp-next/commit/c2ccc1a81f7f94433a94f4d01a2e820db4c4331a))
+* only include MARMASM when toolset is target ([5a2794a](https://www.github.com/nodejs/gyp-next/commit/5a2794aefb58f0c00404ff042b61740bc8b8d5cd))
+
+### [0.6.1](https://github.com/nodejs/gyp-next/compare/v0.6.0...v0.6.1) (2020-10-14)
+
+
+### Bug Fixes
+
+* Correctly rename object files for absolute paths in MSVS generator.
+
+## [0.6.0](https://github.com/nodejs/gyp-next/compare/v0.5.0...v0.6.0) (2020-10-13)
+
+
+### Features
+
+* The Makefile generator will now output shared libraries directly to the product directory on all platforms (previously only macOS).
+
+## [0.5.0](https://github.com/nodejs/gyp-next/compare/v0.4.0...v0.5.0) (2020-09-30)
+
+
+### Features
+
+* Extended compile_commands_json generator to consider more file extensions than just `c` and `cc`. `cpp` and `cxx` are now supported.
+* Source files with duplicate basenames are now supported.
+
+### Removed
+
+* The `--no-duplicate-basename-check` option was removed.
+* The `msvs_enable_marmasm` configuration option was removed in favor of auto-inclusion of the "marmasm" sections for Windows on ARM.
+
+## [0.4.0](https://github.com/nodejs/gyp-next/compare/v0.3.0...v0.4.0) (2020-07-14)
+
+
+### Features
+
+* Added support for passing arbitrary architectures to Xcode builds, enables `arm64` builds.
+
+### Bug Fixes
+
+* Fixed a bug on Solaris where copying archives failed.
+
+## [0.3.0](https://github.com/nodejs/gyp-next/compare/v0.2.1...v0.3.0) (2020-06-06)
+
+
+### Features
+
+* Added support for MSVC cross-compilation. This allows compilation on x64 for a Windows ARM target.
+
+### Bug Fixes
+
+* Fixed XCode CLT version detection on macOS Catalina.
+
+### [0.2.1](https://github.com/nodejs/gyp-next/compare/v0.2.0...v0.2.1) (2020-05-05)
+
+
+### Bug Fixes
+
+* Relicensed to Node.js contributors.
+* Fixed Windows bug introduced in v0.2.0.
+
+## [0.2.0](https://github.com/nodejs/gyp-next/releases/tag/v0.2.0) (2020-04-06)
+
+This is the first release of this project, based on https://chromium.googlesource.com/external/gyp with changes made over the years in Node.js and node-gyp.
diff --git a/node_modules/node-gyp/gyp/CODE_OF_CONDUCT.md b/node_modules/node-gyp/gyp/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..d724027
--- /dev/null
+++ b/node_modules/node-gyp/gyp/CODE_OF_CONDUCT.md
@@ -0,0 +1,4 @@
+# Code of Conduct
+
+* [Node.js Code of Conduct](https://github.com/nodejs/admin/blob/HEAD/CODE_OF_CONDUCT.md)
+* [Node.js Moderation Policy](https://github.com/nodejs/admin/blob/HEAD/Moderation-Policy.md)
diff --git a/node_modules/node-gyp/gyp/CONTRIBUTING.md b/node_modules/node-gyp/gyp/CONTRIBUTING.md
new file mode 100644
index 0000000..1a0bcde
--- /dev/null
+++ b/node_modules/node-gyp/gyp/CONTRIBUTING.md
@@ -0,0 +1,32 @@
+# Contributing to gyp-next
+
+## Code of Conduct
+
+This project is bound to the [Node.js Code of Conduct](https://github.com/nodejs/admin/blob/HEAD/CODE_OF_CONDUCT.md).
+
+<a id="developers-certificate-of-origin"></a>
+## Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+* (a) The contribution was created in whole or in part by me and I
+  have the right to submit it under the open source license
+  indicated in the file; or
+
+* (b) The contribution is based upon previous work that, to the best
+  of my knowledge, is covered under an appropriate open source
+  license and I have the right under that license to submit that
+  work with modifications, whether created in whole or in part
+  by me, under the same open source license (unless I am
+  permitted to submit under a different license), as indicated
+  in the file; or
+
+* (c) The contribution was provided directly to me by some other
+  person who certified (a), (b) or (c) and I have not modified
+  it.
+
+* (d) I understand and agree that this project and the contribution
+  are public and that a record of the contribution (including all
+  personal information I submit with it, including my sign-off) is
+  maintained indefinitely and may be redistributed consistent with
+  this project or the open source license(s) involved.
diff --git a/node_modules/node-gyp/gyp/LICENSE b/node_modules/node-gyp/gyp/LICENSE
new file mode 100644
index 0000000..c6944c5
--- /dev/null
+++ b/node_modules/node-gyp/gyp/LICENSE
@@ -0,0 +1,28 @@
+Copyright (c) 2020 Node.js contributors. All rights reserved.
+Copyright (c) 2009 Google Inc. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/node_modules/node-gyp/gyp/README.md b/node_modules/node-gyp/gyp/README.md
new file mode 100644
index 0000000..9ffc2b2
--- /dev/null
+++ b/node_modules/node-gyp/gyp/README.md
@@ -0,0 +1,7 @@
+GYP can Generate Your Projects.
+===================================
+
+Documents are available at [gyp.gsrc.io](https://gyp.gsrc.io), or you can check out ```md-pages``` branch to read those documents offline.
+
+__gyp-next__ is [released](https://github.com/nodejs/gyp-next/releases) to the [__Python Packaging Index__](https://pypi.org/project/gyp-next) (PyPI) and can be installed with the command:
+* `python3 -m pip install gyp-next`
diff --git a/node_modules/node-gyp/gyp/data/win/large-pdb-shim.cc b/node_modules/node-gyp/gyp/data/win/large-pdb-shim.cc
new file mode 100644
index 0000000..8bca510
--- /dev/null
+++ b/node_modules/node-gyp/gyp/data/win/large-pdb-shim.cc
@@ -0,0 +1,12 @@
+// Copyright (c) 2013 Google Inc. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This file is used to generate an empty .pdb -- with a 4KB pagesize -- that is
+// then used during the final link for modules that have large PDBs. Otherwise,
+// the linker will generate a pdb with a page size of 1KB, which imposes a limit
+// of 1GB on the .pdb. By generating an initial empty .pdb with the compiler
+// (rather than the linker), this limit is avoided. With this in place PDBs may
+// grow to 2GB.
+//
+// This file is referenced by the msvs_large_pdb mechanism in MSVSUtil.py.
diff --git a/node_modules/node-gyp/gyp/gyp b/node_modules/node-gyp/gyp/gyp
new file mode 100644
index 0000000..1b8b9bd
--- /dev/null
+++ b/node_modules/node-gyp/gyp/gyp
@@ -0,0 +1,8 @@
+#!/bin/sh
+# Copyright 2013 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+set -e
+base=$(dirname "$0")
+exec python "${base}/gyp_main.py" "$@"
diff --git a/node_modules/node-gyp/gyp/gyp.bat b/node_modules/node-gyp/gyp/gyp.bat
new file mode 100644
index 0000000..ad797c3
--- /dev/null
+++ b/node_modules/node-gyp/gyp/gyp.bat
@@ -0,0 +1,5 @@
+@rem Copyright (c) 2009 Google Inc. All rights reserved.
+@rem Use of this source code is governed by a BSD-style license that can be
+@rem found in the LICENSE file.
+
+@python "%~dp0gyp_main.py" %*
diff --git a/node_modules/node-gyp/gyp/gyp_main.py b/node_modules/node-gyp/gyp/gyp_main.py
new file mode 100644
index 0000000..f23dcdf
--- /dev/null
+++ b/node_modules/node-gyp/gyp/gyp_main.py
@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2009 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import os
+import sys
+import subprocess
+
+
+def IsCygwin():
+    # Function copied from pylib/gyp/common.py
+    try:
+        out = subprocess.Popen(
+            "uname", stdout=subprocess.PIPE, stderr=subprocess.STDOUT
+        )
+        stdout, _ = out.communicate()
+        return "CYGWIN" in stdout.decode("utf-8")
+    except Exception:
+        return False
+
+
+def UnixifyPath(path):
+    try:
+        if not IsCygwin():
+            return path
+        out = subprocess.Popen(
+            ["cygpath", "-u", path], stdout=subprocess.PIPE, stderr=subprocess.STDOUT
+        )
+        stdout, _ = out.communicate()
+        return stdout.decode("utf-8")
+    except Exception:
+        return path
+
+
+# Make sure we're using the version of pylib in this repo, not one installed
+# elsewhere on the system. Also convert to Unix style path on Cygwin systems,
+# else the 'gyp' library will not be found
+path = UnixifyPath(sys.argv[0])
+sys.path.insert(0, os.path.join(os.path.dirname(path), "pylib"))
+import gyp  # noqa: E402
+
+if __name__ == "__main__":
+    sys.exit(gyp.script_main())
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/MSVSNew.py b/node_modules/node-gyp/gyp/pylib/gyp/MSVSNew.py
new file mode 100644
index 0000000..d6b1897
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/MSVSNew.py
@@ -0,0 +1,367 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""New implementation of Visual Studio project generation."""
+
+import hashlib
+import os
+import random
+from operator import attrgetter
+
+import gyp.common
+
+
+def cmp(x, y):
+    return (x > y) - (x < y)
+
+
+# Initialize random number generator
+random.seed()
+
+# GUIDs for project types
+ENTRY_TYPE_GUIDS = {
+    "project": "{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}",
+    "folder": "{2150E333-8FDC-42A3-9474-1A3956D46DE8}",
+}
+
+# ------------------------------------------------------------------------------
+# Helper functions
+
+
+def MakeGuid(name, seed="msvs_new"):
+    """Returns a GUID for the specified target name.
+
+  Args:
+    name: Target name.
+    seed: Seed for MD5 hash.
+  Returns:
+    A GUID-line string calculated from the name and seed.
+
+  This generates something which looks like a GUID, but depends only on the
+  name and seed.  This means the same name/seed will always generate the same
+  GUID, so that projects and solutions which refer to each other can explicitly
+  determine the GUID to refer to explicitly.  It also means that the GUID will
+  not change when the project for a target is rebuilt.
+  """
+    # Calculate a MD5 signature for the seed and name.
+    d = hashlib.md5((str(seed) + str(name)).encode("utf-8")).hexdigest().upper()
+    # Convert most of the signature to GUID form (discard the rest)
+    guid = (
+        "{"
+        + d[:8]
+        + "-"
+        + d[8:12]
+        + "-"
+        + d[12:16]
+        + "-"
+        + d[16:20]
+        + "-"
+        + d[20:32]
+        + "}"
+    )
+    return guid
+
+
+# ------------------------------------------------------------------------------
+
+
+class MSVSSolutionEntry:
+    def __cmp__(self, other):
+        # Sort by name then guid (so things are in order on vs2008).
+        return cmp((self.name, self.get_guid()), (other.name, other.get_guid()))
+
+
+class MSVSFolder(MSVSSolutionEntry):
+    """Folder in a Visual Studio project or solution."""
+
+    def __init__(self, path, name=None, entries=None, guid=None, items=None):
+        """Initializes the folder.
+
+    Args:
+      path: Full path to the folder.
+      name: Name of the folder.
+      entries: List of folder entries to nest inside this folder.  May contain
+          Folder or Project objects.  May be None, if the folder is empty.
+      guid: GUID to use for folder, if not None.
+      items: List of solution items to include in the folder project.  May be
+          None, if the folder does not directly contain items.
+    """
+        if name:
+            self.name = name
+        else:
+            # Use last layer.
+            self.name = os.path.basename(path)
+
+        self.path = path
+        self.guid = guid
+
+        # Copy passed lists (or set to empty lists)
+        self.entries = sorted(entries or [], key=attrgetter("path"))
+        self.items = list(items or [])
+
+        self.entry_type_guid = ENTRY_TYPE_GUIDS["folder"]
+
+    def get_guid(self):
+        if self.guid is None:
+            # Use consistent guids for folders (so things don't regenerate).
+            self.guid = MakeGuid(self.path, seed="msvs_folder")
+        return self.guid
+
+
+# ------------------------------------------------------------------------------
+
+
+class MSVSProject(MSVSSolutionEntry):
+    """Visual Studio project."""
+
+    def __init__(
+        self,
+        path,
+        name=None,
+        dependencies=None,
+        guid=None,
+        spec=None,
+        build_file=None,
+        config_platform_overrides=None,
+        fixpath_prefix=None,
+    ):
+        """Initializes the project.
+
+    Args:
+      path: Absolute path to the project file.
+      name: Name of project.  If None, the name will be the same as the base
+          name of the project file.
+      dependencies: List of other Project objects this project is dependent
+          upon, if not None.
+      guid: GUID to use for project, if not None.
+      spec: Dictionary specifying how to build this project.
+      build_file: Filename of the .gyp file that the vcproj file comes from.
+      config_platform_overrides: optional dict of configuration platforms to
+          used in place of the default for this target.
+      fixpath_prefix: the path used to adjust the behavior of _fixpath
+    """
+        self.path = path
+        self.guid = guid
+        self.spec = spec
+        self.build_file = build_file
+        # Use project filename if name not specified
+        self.name = name or os.path.splitext(os.path.basename(path))[0]
+
+        # Copy passed lists (or set to empty lists)
+        self.dependencies = list(dependencies or [])
+
+        self.entry_type_guid = ENTRY_TYPE_GUIDS["project"]
+
+        if config_platform_overrides:
+            self.config_platform_overrides = config_platform_overrides
+        else:
+            self.config_platform_overrides = {}
+        self.fixpath_prefix = fixpath_prefix
+        self.msbuild_toolset = None
+
+    def set_dependencies(self, dependencies):
+        self.dependencies = list(dependencies or [])
+
+    def get_guid(self):
+        if self.guid is None:
+            # Set GUID from path
+            # TODO(rspangler): This is fragile.
+            # 1. We can't just use the project filename sans path, since there could
+            #    be multiple projects with the same base name (for example,
+            #    foo/unittest.vcproj and bar/unittest.vcproj).
+            # 2. The path needs to be relative to $SOURCE_ROOT, so that the project
+            #    GUID is the same whether it's included from base/base.sln or
+            #    foo/bar/baz/baz.sln.
+            # 3. The GUID needs to be the same each time this builder is invoked, so
+            #    that we don't need to rebuild the solution when the project changes.
+            # 4. We should be able to handle pre-built project files by reading the
+            #    GUID from the files.
+            self.guid = MakeGuid(self.name)
+        return self.guid
+
+    def set_msbuild_toolset(self, msbuild_toolset):
+        self.msbuild_toolset = msbuild_toolset
+
+
+# ------------------------------------------------------------------------------
+
+
+class MSVSSolution:
+    """Visual Studio solution."""
+
+    def __init__(
+        self, path, version, entries=None, variants=None, websiteProperties=True
+    ):
+        """Initializes the solution.
+
+    Args:
+      path: Path to solution file.
+      version: Format version to emit.
+      entries: List of entries in solution.  May contain Folder or Project
+          objects.  May be None, if the folder is empty.
+      variants: List of build variant strings.  If none, a default list will
+          be used.
+      websiteProperties: Flag to decide if the website properties section
+          is generated.
+    """
+        self.path = path
+        self.websiteProperties = websiteProperties
+        self.version = version
+
+        # Copy passed lists (or set to empty lists)
+        self.entries = list(entries or [])
+
+        if variants:
+            # Copy passed list
+            self.variants = variants[:]
+        else:
+            # Use default
+            self.variants = ["Debug|Win32", "Release|Win32"]
+        # TODO(rspangler): Need to be able to handle a mapping of solution config
+        # to project config.  Should we be able to handle variants being a dict,
+        # or add a separate variant_map variable?  If it's a dict, we can't
+        # guarantee the order of variants since dict keys aren't ordered.
+
+        # TODO(rspangler): Automatically write to disk for now; should delay until
+        # node-evaluation time.
+        self.Write()
+
+    def Write(self, writer=gyp.common.WriteOnDiff):
+        """Writes the solution file to disk.
+
+    Raises:
+      IndexError: An entry appears multiple times.
+    """
+        # Walk the entry tree and collect all the folders and projects.
+        all_entries = set()
+        entries_to_check = self.entries[:]
+        while entries_to_check:
+            e = entries_to_check.pop(0)
+
+            # If this entry has been visited, nothing to do.
+            if e in all_entries:
+                continue
+
+            all_entries.add(e)
+
+            # If this is a folder, check its entries too.
+            if isinstance(e, MSVSFolder):
+                entries_to_check += e.entries
+
+        all_entries = sorted(all_entries, key=attrgetter("path"))
+
+        # Open file and print header
+        f = writer(self.path)
+        f.write(
+            "Microsoft Visual Studio Solution File, "
+            "Format Version %s\r\n" % self.version.SolutionVersion()
+        )
+        f.write("# %s\r\n" % self.version.Description())
+
+        # Project entries
+        sln_root = os.path.split(self.path)[0]
+        for e in all_entries:
+            relative_path = gyp.common.RelativePath(e.path, sln_root)
+            # msbuild does not accept an empty folder_name.
+            # use '.' in case relative_path is empty.
+            folder_name = relative_path.replace("/", "\\") or "."
+            f.write(
+                'Project("%s") = "%s", "%s", "%s"\r\n'
+                % (
+                    e.entry_type_guid,  # Entry type GUID
+                    e.name,  # Folder name
+                    folder_name,  # Folder name (again)
+                    e.get_guid(),  # Entry GUID
+                )
+            )
+
+            # TODO(rspangler): Need a way to configure this stuff
+            if self.websiteProperties:
+                f.write(
+                    "\tProjectSection(WebsiteProperties) = preProject\r\n"
+                    '\t\tDebug.AspNetCompiler.Debug = "True"\r\n'
+                    '\t\tRelease.AspNetCompiler.Debug = "False"\r\n'
+                    "\tEndProjectSection\r\n"
+                )
+
+            if isinstance(e, MSVSFolder):
+                if e.items:
+                    f.write("\tProjectSection(SolutionItems) = preProject\r\n")
+                    for i in e.items:
+                        f.write(f"\t\t{i} = {i}\r\n")
+                    f.write("\tEndProjectSection\r\n")
+
+            if isinstance(e, MSVSProject):
+                if e.dependencies:
+                    f.write("\tProjectSection(ProjectDependencies) = postProject\r\n")
+                    for d in e.dependencies:
+                        f.write(f"\t\t{d.get_guid()} = {d.get_guid()}\r\n")
+                    f.write("\tEndProjectSection\r\n")
+
+            f.write("EndProject\r\n")
+
+        # Global section
+        f.write("Global\r\n")
+
+        # Configurations (variants)
+        f.write("\tGlobalSection(SolutionConfigurationPlatforms) = preSolution\r\n")
+        for v in self.variants:
+            f.write(f"\t\t{v} = {v}\r\n")
+        f.write("\tEndGlobalSection\r\n")
+
+        # Sort config guids for easier diffing of solution changes.
+        config_guids = []
+        config_guids_overrides = {}
+        for e in all_entries:
+            if isinstance(e, MSVSProject):
+                config_guids.append(e.get_guid())
+                config_guids_overrides[e.get_guid()] = e.config_platform_overrides
+        config_guids.sort()
+
+        f.write("\tGlobalSection(ProjectConfigurationPlatforms) = postSolution\r\n")
+        for g in config_guids:
+            for v in self.variants:
+                nv = config_guids_overrides[g].get(v, v)
+                # Pick which project configuration to build for this solution
+                # configuration.
+                f.write(
+                    "\t\t%s.%s.ActiveCfg = %s\r\n"
+                    % (
+                        g,  # Project GUID
+                        v,  # Solution build configuration
+                        nv,  # Project build config for that solution config
+                    )
+                )
+
+                # Enable project in this solution configuration.
+                f.write(
+                    "\t\t%s.%s.Build.0 = %s\r\n"
+                    % (
+                        g,  # Project GUID
+                        v,  # Solution build configuration
+                        nv,  # Project build config for that solution config
+                    )
+                )
+        f.write("\tEndGlobalSection\r\n")
+
+        # TODO(rspangler): Should be able to configure this stuff too (though I've
+        # never seen this be any different)
+        f.write("\tGlobalSection(SolutionProperties) = preSolution\r\n")
+        f.write("\t\tHideSolutionNode = FALSE\r\n")
+        f.write("\tEndGlobalSection\r\n")
+
+        # Folder mappings
+        # Omit this section if there are no folders
+        if any([e.entries for e in all_entries if isinstance(e, MSVSFolder)]):
+            f.write("\tGlobalSection(NestedProjects) = preSolution\r\n")
+            for e in all_entries:
+                if not isinstance(e, MSVSFolder):
+                    continue  # Does not apply to projects, only folders
+                for subentry in e.entries:
+                    f.write(f"\t\t{subentry.get_guid()} = {e.get_guid()}\r\n")
+            f.write("\tEndGlobalSection\r\n")
+
+        f.write("EndGlobal\r\n")
+
+        f.close()
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/MSVSProject.py b/node_modules/node-gyp/gyp/pylib/gyp/MSVSProject.py
new file mode 100644
index 0000000..f0cfabe
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/MSVSProject.py
@@ -0,0 +1,206 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Visual Studio project reader/writer."""
+
+import gyp.easy_xml as easy_xml
+
+# ------------------------------------------------------------------------------
+
+
+class Tool:
+    """Visual Studio tool."""
+
+    def __init__(self, name, attrs=None):
+        """Initializes the tool.
+
+    Args:
+      name: Tool name.
+      attrs: Dict of tool attributes; may be None.
+    """
+        self._attrs = attrs or {}
+        self._attrs["Name"] = name
+
+    def _GetSpecification(self):
+        """Creates an element for the tool.
+
+    Returns:
+      A new xml.dom.Element for the tool.
+    """
+        return ["Tool", self._attrs]
+
+
+class Filter:
+    """Visual Studio filter - that is, a virtual folder."""
+
+    def __init__(self, name, contents=None):
+        """Initializes the folder.
+
+    Args:
+      name: Filter (folder) name.
+      contents: List of filenames and/or Filter objects contained.
+    """
+        self.name = name
+        self.contents = list(contents or [])
+
+
+# ------------------------------------------------------------------------------
+
+
+class Writer:
+    """Visual Studio XML project writer."""
+
+    def __init__(self, project_path, version, name, guid=None, platforms=None):
+        """Initializes the project.
+
+    Args:
+      project_path: Path to the project file.
+      version: Format version to emit.
+      name: Name of the project.
+      guid: GUID to use for project, if not None.
+      platforms: Array of string, the supported platforms.  If null, ['Win32']
+    """
+        self.project_path = project_path
+        self.version = version
+        self.name = name
+        self.guid = guid
+
+        # Default to Win32 for platforms.
+        if not platforms:
+            platforms = ["Win32"]
+
+        # Initialize the specifications of the various sections.
+        self.platform_section = ["Platforms"]
+        for platform in platforms:
+            self.platform_section.append(["Platform", {"Name": platform}])
+        self.tool_files_section = ["ToolFiles"]
+        self.configurations_section = ["Configurations"]
+        self.files_section = ["Files"]
+
+        # Keep a dict keyed on filename to speed up access.
+        self.files_dict = dict()
+
+    def AddToolFile(self, path):
+        """Adds a tool file to the project.
+
+    Args:
+      path: Relative path from project to tool file.
+    """
+        self.tool_files_section.append(["ToolFile", {"RelativePath": path}])
+
+    def _GetSpecForConfiguration(self, config_type, config_name, attrs, tools):
+        """Returns the specification for a configuration.
+
+    Args:
+      config_type: Type of configuration node.
+      config_name: Configuration name.
+      attrs: Dict of configuration attributes; may be None.
+      tools: List of tools (strings or Tool objects); may be None.
+    Returns:
+    """
+        # Handle defaults
+        if not attrs:
+            attrs = {}
+        if not tools:
+            tools = []
+
+        # Add configuration node and its attributes
+        node_attrs = attrs.copy()
+        node_attrs["Name"] = config_name
+        specification = [config_type, node_attrs]
+
+        # Add tool nodes and their attributes
+        if tools:
+            for t in tools:
+                if isinstance(t, Tool):
+                    specification.append(t._GetSpecification())
+                else:
+                    specification.append(Tool(t)._GetSpecification())
+        return specification
+
+    def AddConfig(self, name, attrs=None, tools=None):
+        """Adds a configuration to the project.
+
+    Args:
+      name: Configuration name.
+      attrs: Dict of configuration attributes; may be None.
+      tools: List of tools (strings or Tool objects); may be None.
+    """
+        spec = self._GetSpecForConfiguration("Configuration", name, attrs, tools)
+        self.configurations_section.append(spec)
+
+    def _AddFilesToNode(self, parent, files):
+        """Adds files and/or filters to the parent node.
+
+    Args:
+      parent: Destination node
+      files: A list of Filter objects and/or relative paths to files.
+
+    Will call itself recursively, if the files list contains Filter objects.
+    """
+        for f in files:
+            if isinstance(f, Filter):
+                node = ["Filter", {"Name": f.name}]
+                self._AddFilesToNode(node, f.contents)
+            else:
+                node = ["File", {"RelativePath": f}]
+                self.files_dict[f] = node
+            parent.append(node)
+
+    def AddFiles(self, files):
+        """Adds files to the project.
+
+    Args:
+      files: A list of Filter objects and/or relative paths to files.
+
+    This makes a copy of the file/filter tree at the time of this call.  If you
+    later add files to a Filter object which was passed into a previous call
+    to AddFiles(), it will not be reflected in this project.
+    """
+        self._AddFilesToNode(self.files_section, files)
+        # TODO(rspangler) This also doesn't handle adding files to an existing
+        # filter.  That is, it doesn't merge the trees.
+
+    def AddFileConfig(self, path, config, attrs=None, tools=None):
+        """Adds a configuration to a file.
+
+    Args:
+      path: Relative path to the file.
+      config: Name of configuration to add.
+      attrs: Dict of configuration attributes; may be None.
+      tools: List of tools (strings or Tool objects); may be None.
+
+    Raises:
+      ValueError: Relative path does not match any file added via AddFiles().
+    """
+        # Find the file node with the right relative path
+        parent = self.files_dict.get(path)
+        if not parent:
+            raise ValueError('AddFileConfig: file "%s" not in project.' % path)
+
+        # Add the config to the file node
+        spec = self._GetSpecForConfiguration("FileConfiguration", config, attrs, tools)
+        parent.append(spec)
+
+    def WriteIfChanged(self):
+        """Writes the project file."""
+        # First create XML content definition
+        content = [
+            "VisualStudioProject",
+            {
+                "ProjectType": "Visual C++",
+                "Version": self.version.ProjectVersion(),
+                "Name": self.name,
+                "ProjectGUID": self.guid,
+                "RootNamespace": self.name,
+                "Keyword": "Win32Proj",
+            },
+            self.platform_section,
+            self.tool_files_section,
+            self.configurations_section,
+            ["References"],  # empty section
+            self.files_section,
+            ["Globals"],  # empty section
+        ]
+        easy_xml.WriteXmlIfChanged(content, self.project_path, encoding="Windows-1252")
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/MSVSSettings.py b/node_modules/node-gyp/gyp/pylib/gyp/MSVSSettings.py
new file mode 100644
index 0000000..e89a971
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/MSVSSettings.py
@@ -0,0 +1,1270 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+r"""Code to validate and convert settings of the Microsoft build tools.
+
+This file contains code to validate and convert settings of the Microsoft
+build tools.  The function ConvertToMSBuildSettings(), ValidateMSVSSettings(),
+and ValidateMSBuildSettings() are the entry points.
+
+This file was created by comparing the projects created by Visual Studio 2008
+and Visual Studio 2010 for all available settings through the user interface.
+The MSBuild schemas were also considered.  They are typically found in the
+MSBuild install directory, e.g. c:\Program Files (x86)\MSBuild
+"""
+
+import re
+import sys
+
+# Dictionaries of settings validators. The key is the tool name, the value is
+# a dictionary mapping setting names to validation functions.
+_msvs_validators = {}
+_msbuild_validators = {}
+
+
+# A dictionary of settings converters. The key is the tool name, the value is
+# a dictionary mapping setting names to conversion functions.
+_msvs_to_msbuild_converters = {}
+
+
+# Tool name mapping from MSVS to MSBuild.
+_msbuild_name_of_tool = {}
+
+
+class _Tool:
+    """Represents a tool used by MSVS or MSBuild.
+
+  Attributes:
+      msvs_name: The name of the tool in MSVS.
+      msbuild_name: The name of the tool in MSBuild.
+  """
+
+    def __init__(self, msvs_name, msbuild_name):
+        self.msvs_name = msvs_name
+        self.msbuild_name = msbuild_name
+
+
+def _AddTool(tool):
+    """Adds a tool to the four dictionaries used to process settings.
+
+  This only defines the tool.  Each setting also needs to be added.
+
+  Args:
+    tool: The _Tool object to be added.
+  """
+    _msvs_validators[tool.msvs_name] = {}
+    _msbuild_validators[tool.msbuild_name] = {}
+    _msvs_to_msbuild_converters[tool.msvs_name] = {}
+    _msbuild_name_of_tool[tool.msvs_name] = tool.msbuild_name
+
+
+def _GetMSBuildToolSettings(msbuild_settings, tool):
+    """Returns an MSBuild tool dictionary.  Creates it if needed."""
+    return msbuild_settings.setdefault(tool.msbuild_name, {})
+
+
+class _Type:
+    """Type of settings (Base class)."""
+
+    def ValidateMSVS(self, value):
+        """Verifies that the value is legal for MSVS.
+
+    Args:
+      value: the value to check for this type.
+
+    Raises:
+      ValueError if value is not valid for MSVS.
+    """
+
+    def ValidateMSBuild(self, value):
+        """Verifies that the value is legal for MSBuild.
+
+    Args:
+      value: the value to check for this type.
+
+    Raises:
+      ValueError if value is not valid for MSBuild.
+    """
+
+    def ConvertToMSBuild(self, value):
+        """Returns the MSBuild equivalent of the MSVS value given.
+
+    Args:
+      value: the MSVS value to convert.
+
+    Returns:
+      the MSBuild equivalent.
+
+    Raises:
+      ValueError if value is not valid.
+    """
+        return value
+
+
+class _String(_Type):
+    """A setting that's just a string."""
+
+    def ValidateMSVS(self, value):
+        if not isinstance(value, str):
+            raise ValueError("expected string; got %r" % value)
+
+    def ValidateMSBuild(self, value):
+        if not isinstance(value, str):
+            raise ValueError("expected string; got %r" % value)
+
+    def ConvertToMSBuild(self, value):
+        # Convert the macros
+        return ConvertVCMacrosToMSBuild(value)
+
+
+class _StringList(_Type):
+    """A settings that's a list of strings."""
+
+    def ValidateMSVS(self, value):
+        if not isinstance(value, (list, str)):
+            raise ValueError("expected string list; got %r" % value)
+
+    def ValidateMSBuild(self, value):
+        if not isinstance(value, (list, str)):
+            raise ValueError("expected string list; got %r" % value)
+
+    def ConvertToMSBuild(self, value):
+        # Convert the macros
+        if isinstance(value, list):
+            return [ConvertVCMacrosToMSBuild(i) for i in value]
+        else:
+            return ConvertVCMacrosToMSBuild(value)
+
+
+class _Boolean(_Type):
+    """Boolean settings, can have the values 'false' or 'true'."""
+
+    def _Validate(self, value):
+        if value != "true" and value != "false":
+            raise ValueError("expected bool; got %r" % value)
+
+    def ValidateMSVS(self, value):
+        self._Validate(value)
+
+    def ValidateMSBuild(self, value):
+        self._Validate(value)
+
+    def ConvertToMSBuild(self, value):
+        self._Validate(value)
+        return value
+
+
+class _Integer(_Type):
+    """Integer settings."""
+
+    def __init__(self, msbuild_base=10):
+        _Type.__init__(self)
+        self._msbuild_base = msbuild_base
+
+    def ValidateMSVS(self, value):
+        # Try to convert, this will raise ValueError if invalid.
+        self.ConvertToMSBuild(value)
+
+    def ValidateMSBuild(self, value):
+        # Try to convert, this will raise ValueError if invalid.
+        int(value, self._msbuild_base)
+
+    def ConvertToMSBuild(self, value):
+        msbuild_format = (self._msbuild_base == 10) and "%d" or "0x%04x"
+        return msbuild_format % int(value)
+
+
+class _Enumeration(_Type):
+    """Type of settings that is an enumeration.
+
+  In MSVS, the values are indexes like '0', '1', and '2'.
+  MSBuild uses text labels that are more representative, like 'Win32'.
+
+  Constructor args:
+    label_list: an array of MSBuild labels that correspond to the MSVS index.
+        In the rare cases where MSVS has skipped an index value, None is
+        used in the array to indicate the unused spot.
+    new: an array of labels that are new to MSBuild.
+  """
+
+    def __init__(self, label_list, new=None):
+        _Type.__init__(self)
+        self._label_list = label_list
+        self._msbuild_values = {value for value in label_list if value is not None}
+        if new is not None:
+            self._msbuild_values.update(new)
+
+    def ValidateMSVS(self, value):
+        # Try to convert.  It will raise an exception if not valid.
+        self.ConvertToMSBuild(value)
+
+    def ValidateMSBuild(self, value):
+        if value not in self._msbuild_values:
+            raise ValueError("unrecognized enumerated value %s" % value)
+
+    def ConvertToMSBuild(self, value):
+        index = int(value)
+        if index < 0 or index >= len(self._label_list):
+            raise ValueError(
+                "index value (%d) not in expected range [0, %d)"
+                % (index, len(self._label_list))
+            )
+        label = self._label_list[index]
+        if label is None:
+            raise ValueError("converted value for %s not specified." % value)
+        return label
+
+
+# Instantiate the various generic types.
+_boolean = _Boolean()
+_integer = _Integer()
+# For now, we don't do any special validation on these types:
+_string = _String()
+_file_name = _String()
+_folder_name = _String()
+_file_list = _StringList()
+_folder_list = _StringList()
+_string_list = _StringList()
+# Some boolean settings went from numerical values to boolean.  The
+# mapping is 0: default, 1: false, 2: true.
+_newly_boolean = _Enumeration(["", "false", "true"])
+
+
+def _Same(tool, name, setting_type):
+    """Defines a setting that has the same name in MSVS and MSBuild.
+
+  Args:
+    tool: a dictionary that gives the names of the tool for MSVS and MSBuild.
+    name: the name of the setting.
+    setting_type: the type of this setting.
+  """
+    _Renamed(tool, name, name, setting_type)
+
+
+def _Renamed(tool, msvs_name, msbuild_name, setting_type):
+    """Defines a setting for which the name has changed.
+
+  Args:
+    tool: a dictionary that gives the names of the tool for MSVS and MSBuild.
+    msvs_name: the name of the MSVS setting.
+    msbuild_name: the name of the MSBuild setting.
+    setting_type: the type of this setting.
+  """
+
+    def _Translate(value, msbuild_settings):
+        msbuild_tool_settings = _GetMSBuildToolSettings(msbuild_settings, tool)
+        msbuild_tool_settings[msbuild_name] = setting_type.ConvertToMSBuild(value)
+
+    _msvs_validators[tool.msvs_name][msvs_name] = setting_type.ValidateMSVS
+    _msbuild_validators[tool.msbuild_name][msbuild_name] = setting_type.ValidateMSBuild
+    _msvs_to_msbuild_converters[tool.msvs_name][msvs_name] = _Translate
+
+
+def _Moved(tool, settings_name, msbuild_tool_name, setting_type):
+    _MovedAndRenamed(
+        tool, settings_name, msbuild_tool_name, settings_name, setting_type
+    )
+
+
+def _MovedAndRenamed(
+    tool, msvs_settings_name, msbuild_tool_name, msbuild_settings_name, setting_type
+):
+    """Defines a setting that may have moved to a new section.
+
+  Args:
+    tool: a dictionary that gives the names of the tool for MSVS and MSBuild.
+    msvs_settings_name: the MSVS name of the setting.
+    msbuild_tool_name: the name of the MSBuild tool to place the setting under.
+    msbuild_settings_name: the MSBuild name of the setting.
+    setting_type: the type of this setting.
+  """
+
+    def _Translate(value, msbuild_settings):
+        tool_settings = msbuild_settings.setdefault(msbuild_tool_name, {})
+        tool_settings[msbuild_settings_name] = setting_type.ConvertToMSBuild(value)
+
+    _msvs_validators[tool.msvs_name][msvs_settings_name] = setting_type.ValidateMSVS
+    validator = setting_type.ValidateMSBuild
+    _msbuild_validators[msbuild_tool_name][msbuild_settings_name] = validator
+    _msvs_to_msbuild_converters[tool.msvs_name][msvs_settings_name] = _Translate
+
+
+def _MSVSOnly(tool, name, setting_type):
+    """Defines a setting that is only found in MSVS.
+
+  Args:
+    tool: a dictionary that gives the names of the tool for MSVS and MSBuild.
+    name: the name of the setting.
+    setting_type: the type of this setting.
+  """
+
+    def _Translate(unused_value, unused_msbuild_settings):
+        # Since this is for MSVS only settings, no translation will happen.
+        pass
+
+    _msvs_validators[tool.msvs_name][name] = setting_type.ValidateMSVS
+    _msvs_to_msbuild_converters[tool.msvs_name][name] = _Translate
+
+
+def _MSBuildOnly(tool, name, setting_type):
+    """Defines a setting that is only found in MSBuild.
+
+  Args:
+    tool: a dictionary that gives the names of the tool for MSVS and MSBuild.
+    name: the name of the setting.
+    setting_type: the type of this setting.
+  """
+
+    def _Translate(value, msbuild_settings):
+        # Let msbuild-only properties get translated as-is from msvs_settings.
+        tool_settings = msbuild_settings.setdefault(tool.msbuild_name, {})
+        tool_settings[name] = value
+
+    _msbuild_validators[tool.msbuild_name][name] = setting_type.ValidateMSBuild
+    _msvs_to_msbuild_converters[tool.msvs_name][name] = _Translate
+
+
+def _ConvertedToAdditionalOption(tool, msvs_name, flag):
+    """Defines a setting that's handled via a command line option in MSBuild.
+
+  Args:
+    tool: a dictionary that gives the names of the tool for MSVS and MSBuild.
+    msvs_name: the name of the MSVS setting that if 'true' becomes a flag
+    flag: the flag to insert at the end of the AdditionalOptions
+  """
+
+    def _Translate(value, msbuild_settings):
+        if value == "true":
+            tool_settings = _GetMSBuildToolSettings(msbuild_settings, tool)
+            if "AdditionalOptions" in tool_settings:
+                new_flags = "{} {}".format(tool_settings["AdditionalOptions"], flag)
+            else:
+                new_flags = flag
+            tool_settings["AdditionalOptions"] = new_flags
+
+    _msvs_validators[tool.msvs_name][msvs_name] = _boolean.ValidateMSVS
+    _msvs_to_msbuild_converters[tool.msvs_name][msvs_name] = _Translate
+
+
+def _CustomGeneratePreprocessedFile(tool, msvs_name):
+    def _Translate(value, msbuild_settings):
+        tool_settings = _GetMSBuildToolSettings(msbuild_settings, tool)
+        if value == "0":
+            tool_settings["PreprocessToFile"] = "false"
+            tool_settings["PreprocessSuppressLineNumbers"] = "false"
+        elif value == "1":  # /P
+            tool_settings["PreprocessToFile"] = "true"
+            tool_settings["PreprocessSuppressLineNumbers"] = "false"
+        elif value == "2":  # /EP /P
+            tool_settings["PreprocessToFile"] = "true"
+            tool_settings["PreprocessSuppressLineNumbers"] = "true"
+        else:
+            raise ValueError("value must be one of [0, 1, 2]; got %s" % value)
+
+    # Create a bogus validator that looks for '0', '1', or '2'
+    msvs_validator = _Enumeration(["a", "b", "c"]).ValidateMSVS
+    _msvs_validators[tool.msvs_name][msvs_name] = msvs_validator
+    msbuild_validator = _boolean.ValidateMSBuild
+    msbuild_tool_validators = _msbuild_validators[tool.msbuild_name]
+    msbuild_tool_validators["PreprocessToFile"] = msbuild_validator
+    msbuild_tool_validators["PreprocessSuppressLineNumbers"] = msbuild_validator
+    _msvs_to_msbuild_converters[tool.msvs_name][msvs_name] = _Translate
+
+
+fix_vc_macro_slashes_regex_list = ("IntDir", "OutDir")
+fix_vc_macro_slashes_regex = re.compile(
+    r"(\$\((?:%s)\))(?:[\\/]+)" % "|".join(fix_vc_macro_slashes_regex_list)
+)
+
+# Regular expression to detect keys that were generated by exclusion lists
+_EXCLUDED_SUFFIX_RE = re.compile("^(.*)_excluded$")
+
+
+def _ValidateExclusionSetting(setting, settings, error_msg, stderr=sys.stderr):
+    """Verify that 'setting' is valid if it is generated from an exclusion list.
+
+  If the setting appears to be generated from an exclusion list, the root name
+  is checked.
+
+  Args:
+      setting:   A string that is the setting name to validate
+      settings:  A dictionary where the keys are valid settings
+      error_msg: The message to emit in the event of error
+      stderr:    The stream receiving the error messages.
+  """
+    # This may be unrecognized because it's an exclusion list. If the
+    # setting name has the _excluded suffix, then check the root name.
+    unrecognized = True
+    m = re.match(_EXCLUDED_SUFFIX_RE, setting)
+    if m:
+        root_setting = m.group(1)
+        unrecognized = root_setting not in settings
+
+    if unrecognized:
+        # We don't know this setting. Give a warning.
+        print(error_msg, file=stderr)
+
+
+def FixVCMacroSlashes(s):
+    """Replace macros which have excessive following slashes.
+
+  These macros are known to have a built-in trailing slash. Furthermore, many
+  scripts hiccup on processing paths with extra slashes in the middle.
+
+  This list is probably not exhaustive.  Add as needed.
+  """
+    if "$" in s:
+        s = fix_vc_macro_slashes_regex.sub(r"\1", s)
+    return s
+
+
+def ConvertVCMacrosToMSBuild(s):
+    """Convert the MSVS macros found in the string to the MSBuild equivalent.
+
+  This list is probably not exhaustive.  Add as needed.
+  """
+    if "$" in s:
+        replace_map = {
+            "$(ConfigurationName)": "$(Configuration)",
+            "$(InputDir)": "%(RelativeDir)",
+            "$(InputExt)": "%(Extension)",
+            "$(InputFileName)": "%(Filename)%(Extension)",
+            "$(InputName)": "%(Filename)",
+            "$(InputPath)": "%(Identity)",
+            "$(ParentName)": "$(ProjectFileName)",
+            "$(PlatformName)": "$(Platform)",
+            "$(SafeInputName)": "%(Filename)",
+        }
+        for old, new in replace_map.items():
+            s = s.replace(old, new)
+        s = FixVCMacroSlashes(s)
+    return s
+
+
+def ConvertToMSBuildSettings(msvs_settings, stderr=sys.stderr):
+    """Converts MSVS settings (VS2008 and earlier) to MSBuild settings (VS2010+).
+
+  Args:
+      msvs_settings: A dictionary.  The key is the tool name.  The values are
+          themselves dictionaries of settings and their values.
+      stderr: The stream receiving the error messages.
+
+  Returns:
+      A dictionary of MSBuild settings.  The key is either the MSBuild tool name
+      or the empty string (for the global settings).  The values are themselves
+      dictionaries of settings and their values.
+  """
+    msbuild_settings = {}
+    for msvs_tool_name, msvs_tool_settings in msvs_settings.items():
+        if msvs_tool_name in _msvs_to_msbuild_converters:
+            msvs_tool = _msvs_to_msbuild_converters[msvs_tool_name]
+            for msvs_setting, msvs_value in msvs_tool_settings.items():
+                if msvs_setting in msvs_tool:
+                    # Invoke the translation function.
+                    try:
+                        msvs_tool[msvs_setting](msvs_value, msbuild_settings)
+                    except ValueError as e:
+                        print(
+                            "Warning: while converting %s/%s to MSBuild, "
+                            "%s" % (msvs_tool_name, msvs_setting, e),
+                            file=stderr,
+                        )
+                else:
+                    _ValidateExclusionSetting(
+                        msvs_setting,
+                        msvs_tool,
+                        (
+                            "Warning: unrecognized setting %s/%s "
+                            "while converting to MSBuild."
+                            % (msvs_tool_name, msvs_setting)
+                        ),
+                        stderr,
+                    )
+        else:
+            print(
+                "Warning: unrecognized tool %s while converting to "
+                "MSBuild." % msvs_tool_name,
+                file=stderr,
+            )
+    return msbuild_settings
+
+
+def ValidateMSVSSettings(settings, stderr=sys.stderr):
+    """Validates that the names of the settings are valid for MSVS.
+
+  Args:
+      settings: A dictionary.  The key is the tool name.  The values are
+          themselves dictionaries of settings and their values.
+      stderr: The stream receiving the error messages.
+  """
+    _ValidateSettings(_msvs_validators, settings, stderr)
+
+
+def ValidateMSBuildSettings(settings, stderr=sys.stderr):
+    """Validates that the names of the settings are valid for MSBuild.
+
+  Args:
+      settings: A dictionary.  The key is the tool name.  The values are
+          themselves dictionaries of settings and their values.
+      stderr: The stream receiving the error messages.
+  """
+    _ValidateSettings(_msbuild_validators, settings, stderr)
+
+
+def _ValidateSettings(validators, settings, stderr):
+    """Validates that the settings are valid for MSBuild or MSVS.
+
+  We currently only validate the names of the settings, not their values.
+
+  Args:
+      validators: A dictionary of tools and their validators.
+      settings: A dictionary.  The key is the tool name.  The values are
+          themselves dictionaries of settings and their values.
+      stderr: The stream receiving the error messages.
+  """
+    for tool_name in settings:
+        if tool_name in validators:
+            tool_validators = validators[tool_name]
+            for setting, value in settings[tool_name].items():
+                if setting in tool_validators:
+                    try:
+                        tool_validators[setting](value)
+                    except ValueError as e:
+                        print(
+                            f"Warning: for {tool_name}/{setting}, {e}",
+                            file=stderr,
+                        )
+                else:
+                    _ValidateExclusionSetting(
+                        setting,
+                        tool_validators,
+                        (f"Warning: unrecognized setting {tool_name}/{setting}"),
+                        stderr,
+                    )
+
+        else:
+            print("Warning: unrecognized tool %s" % (tool_name), file=stderr)
+
+
+# MSVS and MBuild names of the tools.
+_compile = _Tool("VCCLCompilerTool", "ClCompile")
+_link = _Tool("VCLinkerTool", "Link")
+_midl = _Tool("VCMIDLTool", "Midl")
+_rc = _Tool("VCResourceCompilerTool", "ResourceCompile")
+_lib = _Tool("VCLibrarianTool", "Lib")
+_manifest = _Tool("VCManifestTool", "Manifest")
+_masm = _Tool("MASM", "MASM")
+_armasm = _Tool("ARMASM", "ARMASM")
+
+
+_AddTool(_compile)
+_AddTool(_link)
+_AddTool(_midl)
+_AddTool(_rc)
+_AddTool(_lib)
+_AddTool(_manifest)
+_AddTool(_masm)
+_AddTool(_armasm)
+# Add sections only found in the MSBuild settings.
+_msbuild_validators[""] = {}
+_msbuild_validators["ProjectReference"] = {}
+_msbuild_validators["ManifestResourceCompile"] = {}
+
+# Descriptions of the compiler options, i.e. VCCLCompilerTool in MSVS and
+# ClCompile in MSBuild.
+# See "c:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\1033\cl.xml" for
+# the schema of the MSBuild ClCompile settings.
+
+# Options that have the same name in MSVS and MSBuild
+_Same(_compile, "AdditionalIncludeDirectories", _folder_list)  # /I
+_Same(_compile, "AdditionalOptions", _string_list)
+_Same(_compile, "AdditionalUsingDirectories", _folder_list)  # /AI
+_Same(_compile, "AssemblerListingLocation", _file_name)  # /Fa
+_Same(_compile, "BrowseInformationFile", _file_name)
+_Same(_compile, "BufferSecurityCheck", _boolean)  # /GS
+_Same(_compile, "DisableLanguageExtensions", _boolean)  # /Za
+_Same(_compile, "DisableSpecificWarnings", _string_list)  # /wd
+_Same(_compile, "EnableFiberSafeOptimizations", _boolean)  # /GT
+_Same(_compile, "EnablePREfast", _boolean)  # /analyze Visible='false'
+_Same(_compile, "ExpandAttributedSource", _boolean)  # /Fx
+_Same(_compile, "FloatingPointExceptions", _boolean)  # /fp:except
+_Same(_compile, "ForceConformanceInForLoopScope", _boolean)  # /Zc:forScope
+_Same(_compile, "ForcedIncludeFiles", _file_list)  # /FI
+_Same(_compile, "ForcedUsingFiles", _file_list)  # /FU
+_Same(_compile, "GenerateXMLDocumentationFiles", _boolean)  # /doc
+_Same(_compile, "IgnoreStandardIncludePath", _boolean)  # /X
+_Same(_compile, "MinimalRebuild", _boolean)  # /Gm
+_Same(_compile, "OmitDefaultLibName", _boolean)  # /Zl
+_Same(_compile, "OmitFramePointers", _boolean)  # /Oy
+_Same(_compile, "PreprocessorDefinitions", _string_list)  # /D
+_Same(_compile, "ProgramDataBaseFileName", _file_name)  # /Fd
+_Same(_compile, "RuntimeTypeInfo", _boolean)  # /GR
+_Same(_compile, "ShowIncludes", _boolean)  # /showIncludes
+_Same(_compile, "SmallerTypeCheck", _boolean)  # /RTCc
+_Same(_compile, "StringPooling", _boolean)  # /GF
+_Same(_compile, "SuppressStartupBanner", _boolean)  # /nologo
+_Same(_compile, "TreatWChar_tAsBuiltInType", _boolean)  # /Zc:wchar_t
+_Same(_compile, "UndefineAllPreprocessorDefinitions", _boolean)  # /u
+_Same(_compile, "UndefinePreprocessorDefinitions", _string_list)  # /U
+_Same(_compile, "UseFullPaths", _boolean)  # /FC
+_Same(_compile, "WholeProgramOptimization", _boolean)  # /GL
+_Same(_compile, "XMLDocumentationFileName", _file_name)
+_Same(_compile, "CompileAsWinRT", _boolean)  # /ZW
+
+_Same(
+    _compile,
+    "AssemblerOutput",
+    _Enumeration(
+        [
+            "NoListing",
+            "AssemblyCode",  # /FA
+            "All",  # /FAcs
+            "AssemblyAndMachineCode",  # /FAc
+            "AssemblyAndSourceCode",
+        ]
+    ),
+)  # /FAs
+_Same(
+    _compile,
+    "BasicRuntimeChecks",
+    _Enumeration(
+        [
+            "Default",
+            "StackFrameRuntimeCheck",  # /RTCs
+            "UninitializedLocalUsageCheck",  # /RTCu
+            "EnableFastChecks",
+        ]
+    ),
+)  # /RTC1
+_Same(
+    _compile, "BrowseInformation", _Enumeration(["false", "true", "true"])  # /FR
+)  # /Fr
+_Same(
+    _compile,
+    "CallingConvention",
+    _Enumeration(["Cdecl", "FastCall", "StdCall", "VectorCall"]),  # /Gd  # /Gr  # /Gz
+)  # /Gv
+_Same(
+    _compile,
+    "CompileAs",
+    _Enumeration(["Default", "CompileAsC", "CompileAsCpp"]),  # /TC
+)  # /TP
+_Same(
+    _compile,
+    "DebugInformationFormat",
+    _Enumeration(
+        [
+            "",  # Disabled
+            "OldStyle",  # /Z7
+            None,
+            "ProgramDatabase",  # /Zi
+            "EditAndContinue",
+        ]
+    ),
+)  # /ZI
+_Same(
+    _compile,
+    "EnableEnhancedInstructionSet",
+    _Enumeration(
+        [
+            "NotSet",
+            "StreamingSIMDExtensions",  # /arch:SSE
+            "StreamingSIMDExtensions2",  # /arch:SSE2
+            "AdvancedVectorExtensions",  # /arch:AVX (vs2012+)
+            "NoExtensions",  # /arch:IA32 (vs2012+)
+            # This one only exists in the new msbuild format.
+            "AdvancedVectorExtensions2",  # /arch:AVX2 (vs2013r2+)
+        ]
+    ),
+)
+_Same(
+    _compile,
+    "ErrorReporting",
+    _Enumeration(
+        [
+            "None",  # /errorReport:none
+            "Prompt",  # /errorReport:prompt
+            "Queue",
+        ],  # /errorReport:queue
+        new=["Send"],
+    ),
+)  # /errorReport:send"
+_Same(
+    _compile,
+    "ExceptionHandling",
+    _Enumeration(["false", "Sync", "Async"], new=["SyncCThrow"]),  # /EHsc  # /EHa
+)  # /EHs
+_Same(
+    _compile, "FavorSizeOrSpeed", _Enumeration(["Neither", "Speed", "Size"])  # /Ot
+)  # /Os
+_Same(
+    _compile,
+    "FloatingPointModel",
+    _Enumeration(["Precise", "Strict", "Fast"]),  # /fp:precise  # /fp:strict
+)  # /fp:fast
+_Same(
+    _compile,
+    "InlineFunctionExpansion",
+    _Enumeration(
+        ["Default", "OnlyExplicitInline", "AnySuitable"],  # /Ob1  # /Ob2
+        new=["Disabled"],
+    ),
+)  # /Ob0
+_Same(
+    _compile,
+    "Optimization",
+    _Enumeration(["Disabled", "MinSpace", "MaxSpeed", "Full"]),  # /Od  # /O1  # /O2
+)  # /Ox
+_Same(
+    _compile,
+    "RuntimeLibrary",
+    _Enumeration(
+        [
+            "MultiThreaded",  # /MT
+            "MultiThreadedDebug",  # /MTd
+            "MultiThreadedDLL",  # /MD
+            "MultiThreadedDebugDLL",
+        ]
+    ),
+)  # /MDd
+_Same(
+    _compile,
+    "StructMemberAlignment",
+    _Enumeration(
+        [
+            "Default",
+            "1Byte",  # /Zp1
+            "2Bytes",  # /Zp2
+            "4Bytes",  # /Zp4
+            "8Bytes",  # /Zp8
+            "16Bytes",
+        ]
+    ),
+)  # /Zp16
+_Same(
+    _compile,
+    "WarningLevel",
+    _Enumeration(
+        [
+            "TurnOffAllWarnings",  # /W0
+            "Level1",  # /W1
+            "Level2",  # /W2
+            "Level3",  # /W3
+            "Level4",
+        ],  # /W4
+        new=["EnableAllWarnings"],
+    ),
+)  # /Wall
+
+# Options found in MSVS that have been renamed in MSBuild.
+_Renamed(
+    _compile, "EnableFunctionLevelLinking", "FunctionLevelLinking", _boolean
+)  # /Gy
+_Renamed(_compile, "EnableIntrinsicFunctions", "IntrinsicFunctions", _boolean)  # /Oi
+_Renamed(_compile, "KeepComments", "PreprocessKeepComments", _boolean)  # /C
+_Renamed(_compile, "ObjectFile", "ObjectFileName", _file_name)  # /Fo
+_Renamed(_compile, "OpenMP", "OpenMPSupport", _boolean)  # /openmp
+_Renamed(
+    _compile, "PrecompiledHeaderThrough", "PrecompiledHeaderFile", _file_name
+)  # Used with /Yc and /Yu
+_Renamed(
+    _compile, "PrecompiledHeaderFile", "PrecompiledHeaderOutputFile", _file_name
+)  # /Fp
+_Renamed(
+    _compile,
+    "UsePrecompiledHeader",
+    "PrecompiledHeader",
+    _Enumeration(
+        ["NotUsing", "Create", "Use"]  # VS recognized '' for this value too.  # /Yc
+    ),
+)  # /Yu
+_Renamed(_compile, "WarnAsError", "TreatWarningAsError", _boolean)  # /WX
+
+_ConvertedToAdditionalOption(_compile, "DefaultCharIsUnsigned", "/J")
+
+# MSVS options not found in MSBuild.
+_MSVSOnly(_compile, "Detect64BitPortabilityProblems", _boolean)
+_MSVSOnly(_compile, "UseUnicodeResponseFiles", _boolean)
+
+# MSBuild options not found in MSVS.
+_MSBuildOnly(_compile, "BuildingInIDE", _boolean)
+_MSBuildOnly(
+    _compile, "CompileAsManaged", _Enumeration([], new=["false", "true"])
+)  # /clr
+_MSBuildOnly(_compile, "CreateHotpatchableImage", _boolean)  # /hotpatch
+_MSBuildOnly(_compile, "MultiProcessorCompilation", _boolean)  # /MP
+_MSBuildOnly(_compile, "PreprocessOutputPath", _string)  # /Fi
+_MSBuildOnly(_compile, "ProcessorNumber", _integer)  # the number of processors
+_MSBuildOnly(_compile, "TrackerLogDirectory", _folder_name)
+_MSBuildOnly(_compile, "TreatSpecificWarningsAsErrors", _string_list)  # /we
+_MSBuildOnly(_compile, "UseUnicodeForAssemblerListing", _boolean)  # /FAu
+
+# Defines a setting that needs very customized processing
+_CustomGeneratePreprocessedFile(_compile, "GeneratePreprocessedFile")
+
+
+# Directives for converting MSVS VCLinkerTool to MSBuild Link.
+# See "c:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\1033\link.xml" for
+# the schema of the MSBuild Link settings.
+
+# Options that have the same name in MSVS and MSBuild
+_Same(_link, "AdditionalDependencies", _file_list)
+_Same(_link, "AdditionalLibraryDirectories", _folder_list)  # /LIBPATH
+#  /MANIFESTDEPENDENCY:
+_Same(_link, "AdditionalManifestDependencies", _file_list)
+_Same(_link, "AdditionalOptions", _string_list)
+_Same(_link, "AddModuleNamesToAssembly", _file_list)  # /ASSEMBLYMODULE
+_Same(_link, "AllowIsolation", _boolean)  # /ALLOWISOLATION
+_Same(_link, "AssemblyLinkResource", _file_list)  # /ASSEMBLYLINKRESOURCE
+_Same(_link, "BaseAddress", _string)  # /BASE
+_Same(_link, "CLRUnmanagedCodeCheck", _boolean)  # /CLRUNMANAGEDCODECHECK
+_Same(_link, "DelayLoadDLLs", _file_list)  # /DELAYLOAD
+_Same(_link, "DelaySign", _boolean)  # /DELAYSIGN
+_Same(_link, "EmbedManagedResourceFile", _file_list)  # /ASSEMBLYRESOURCE
+_Same(_link, "EnableUAC", _boolean)  # /MANIFESTUAC
+_Same(_link, "EntryPointSymbol", _string)  # /ENTRY
+_Same(_link, "ForceSymbolReferences", _file_list)  # /INCLUDE
+_Same(_link, "FunctionOrder", _file_name)  # /ORDER
+_Same(_link, "GenerateDebugInformation", _boolean)  # /DEBUG
+_Same(_link, "GenerateMapFile", _boolean)  # /MAP
+_Same(_link, "HeapCommitSize", _string)
+_Same(_link, "HeapReserveSize", _string)  # /HEAP
+_Same(_link, "IgnoreAllDefaultLibraries", _boolean)  # /NODEFAULTLIB
+_Same(_link, "IgnoreEmbeddedIDL", _boolean)  # /IGNOREIDL
+_Same(_link, "ImportLibrary", _file_name)  # /IMPLIB
+_Same(_link, "KeyContainer", _file_name)  # /KEYCONTAINER
+_Same(_link, "KeyFile", _file_name)  # /KEYFILE
+_Same(_link, "ManifestFile", _file_name)  # /ManifestFile
+_Same(_link, "MapExports", _boolean)  # /MAPINFO:EXPORTS
+_Same(_link, "MapFileName", _file_name)
+_Same(_link, "MergedIDLBaseFileName", _file_name)  # /IDLOUT
+_Same(_link, "MergeSections", _string)  # /MERGE
+_Same(_link, "MidlCommandFile", _file_name)  # /MIDL
+_Same(_link, "ModuleDefinitionFile", _file_name)  # /DEF
+_Same(_link, "OutputFile", _file_name)  # /OUT
+_Same(_link, "PerUserRedirection", _boolean)
+_Same(_link, "Profile", _boolean)  # /PROFILE
+_Same(_link, "ProfileGuidedDatabase", _file_name)  # /PGD
+_Same(_link, "ProgramDatabaseFile", _file_name)  # /PDB
+_Same(_link, "RegisterOutput", _boolean)
+_Same(_link, "SetChecksum", _boolean)  # /RELEASE
+_Same(_link, "StackCommitSize", _string)
+_Same(_link, "StackReserveSize", _string)  # /STACK
+_Same(_link, "StripPrivateSymbols", _file_name)  # /PDBSTRIPPED
+_Same(_link, "SupportUnloadOfDelayLoadedDLL", _boolean)  # /DELAY:UNLOAD
+_Same(_link, "SuppressStartupBanner", _boolean)  # /NOLOGO
+_Same(_link, "SwapRunFromCD", _boolean)  # /SWAPRUN:CD
+_Same(_link, "TurnOffAssemblyGeneration", _boolean)  # /NOASSEMBLY
+_Same(_link, "TypeLibraryFile", _file_name)  # /TLBOUT
+_Same(_link, "TypeLibraryResourceID", _integer)  # /TLBID
+_Same(_link, "UACUIAccess", _boolean)  # /uiAccess='true'
+_Same(_link, "Version", _string)  # /VERSION
+
+_Same(_link, "EnableCOMDATFolding", _newly_boolean)  # /OPT:ICF
+_Same(_link, "FixedBaseAddress", _newly_boolean)  # /FIXED
+_Same(_link, "LargeAddressAware", _newly_boolean)  # /LARGEADDRESSAWARE
+_Same(_link, "OptimizeReferences", _newly_boolean)  # /OPT:REF
+_Same(_link, "RandomizedBaseAddress", _newly_boolean)  # /DYNAMICBASE
+_Same(_link, "TerminalServerAware", _newly_boolean)  # /TSAWARE
+
+_subsystem_enumeration = _Enumeration(
+    [
+        "NotSet",
+        "Console",  # /SUBSYSTEM:CONSOLE
+        "Windows",  # /SUBSYSTEM:WINDOWS
+        "Native",  # /SUBSYSTEM:NATIVE
+        "EFI Application",  # /SUBSYSTEM:EFI_APPLICATION
+        "EFI Boot Service Driver",  # /SUBSYSTEM:EFI_BOOT_SERVICE_DRIVER
+        "EFI ROM",  # /SUBSYSTEM:EFI_ROM
+        "EFI Runtime",  # /SUBSYSTEM:EFI_RUNTIME_DRIVER
+        "WindowsCE",
+    ],  # /SUBSYSTEM:WINDOWSCE
+    new=["POSIX"],
+)  # /SUBSYSTEM:POSIX
+
+_target_machine_enumeration = _Enumeration(
+    [
+        "NotSet",
+        "MachineX86",  # /MACHINE:X86
+        None,
+        "MachineARM",  # /MACHINE:ARM
+        "MachineEBC",  # /MACHINE:EBC
+        "MachineIA64",  # /MACHINE:IA64
+        None,
+        "MachineMIPS",  # /MACHINE:MIPS
+        "MachineMIPS16",  # /MACHINE:MIPS16
+        "MachineMIPSFPU",  # /MACHINE:MIPSFPU
+        "MachineMIPSFPU16",  # /MACHINE:MIPSFPU16
+        None,
+        None,
+        None,
+        "MachineSH4",  # /MACHINE:SH4
+        None,
+        "MachineTHUMB",  # /MACHINE:THUMB
+        "MachineX64",
+    ]
+)  # /MACHINE:X64
+
+_Same(
+    _link, "AssemblyDebug", _Enumeration(["", "true", "false"])  # /ASSEMBLYDEBUG
+)  # /ASSEMBLYDEBUG:DISABLE
+_Same(
+    _link,
+    "CLRImageType",
+    _Enumeration(
+        [
+            "Default",
+            "ForceIJWImage",  # /CLRIMAGETYPE:IJW
+            "ForcePureILImage",  # /Switch="CLRIMAGETYPE:PURE
+            "ForceSafeILImage",
+        ]
+    ),
+)  # /Switch="CLRIMAGETYPE:SAFE
+_Same(
+    _link,
+    "CLRThreadAttribute",
+    _Enumeration(
+        [
+            "DefaultThreadingAttribute",  # /CLRTHREADATTRIBUTE:NONE
+            "MTAThreadingAttribute",  # /CLRTHREADATTRIBUTE:MTA
+            "STAThreadingAttribute",
+        ]
+    ),
+)  # /CLRTHREADATTRIBUTE:STA
+_Same(
+    _link,
+    "DataExecutionPrevention",
+    _Enumeration(["", "false", "true"]),  # /NXCOMPAT:NO
+)  # /NXCOMPAT
+_Same(
+    _link,
+    "Driver",
+    _Enumeration(["NotSet", "Driver", "UpOnly", "WDM"]),  # /Driver  # /DRIVER:UPONLY
+)  # /DRIVER:WDM
+_Same(
+    _link,
+    "LinkTimeCodeGeneration",
+    _Enumeration(
+        [
+            "Default",
+            "UseLinkTimeCodeGeneration",  # /LTCG
+            "PGInstrument",  # /LTCG:PGInstrument
+            "PGOptimization",  # /LTCG:PGOptimize
+            "PGUpdate",
+        ]
+    ),
+)  # /LTCG:PGUpdate
+_Same(
+    _link,
+    "ShowProgress",
+    _Enumeration(
+        ["NotSet", "LinkVerbose", "LinkVerboseLib"],  # /VERBOSE  # /VERBOSE:Lib
+        new=[
+            "LinkVerboseICF",  # /VERBOSE:ICF
+            "LinkVerboseREF",  # /VERBOSE:REF
+            "LinkVerboseSAFESEH",  # /VERBOSE:SAFESEH
+            "LinkVerboseCLR",
+        ],
+    ),
+)  # /VERBOSE:CLR
+_Same(_link, "SubSystem", _subsystem_enumeration)
+_Same(_link, "TargetMachine", _target_machine_enumeration)
+_Same(
+    _link,
+    "UACExecutionLevel",
+    _Enumeration(
+        [
+            "AsInvoker",  # /level='asInvoker'
+            "HighestAvailable",  # /level='highestAvailable'
+            "RequireAdministrator",
+        ]
+    ),
+)  # /level='requireAdministrator'
+_Same(_link, "MinimumRequiredVersion", _string)
+_Same(_link, "TreatLinkerWarningAsErrors", _boolean)  # /WX
+
+
+# Options found in MSVS that have been renamed in MSBuild.
+_Renamed(
+    _link,
+    "ErrorReporting",
+    "LinkErrorReporting",
+    _Enumeration(
+        [
+            "NoErrorReport",  # /ERRORREPORT:NONE
+            "PromptImmediately",  # /ERRORREPORT:PROMPT
+            "QueueForNextLogin",
+        ],  # /ERRORREPORT:QUEUE
+        new=["SendErrorReport"],
+    ),
+)  # /ERRORREPORT:SEND
+_Renamed(
+    _link, "IgnoreDefaultLibraryNames", "IgnoreSpecificDefaultLibraries", _file_list
+)  # /NODEFAULTLIB
+_Renamed(_link, "ResourceOnlyDLL", "NoEntryPoint", _boolean)  # /NOENTRY
+_Renamed(_link, "SwapRunFromNet", "SwapRunFromNET", _boolean)  # /SWAPRUN:NET
+
+_Moved(_link, "GenerateManifest", "", _boolean)
+_Moved(_link, "IgnoreImportLibrary", "", _boolean)
+_Moved(_link, "LinkIncremental", "", _newly_boolean)
+_Moved(_link, "LinkLibraryDependencies", "ProjectReference", _boolean)
+_Moved(_link, "UseLibraryDependencyInputs", "ProjectReference", _boolean)
+
+# MSVS options not found in MSBuild.
+_MSVSOnly(_link, "OptimizeForWindows98", _newly_boolean)
+_MSVSOnly(_link, "UseUnicodeResponseFiles", _boolean)
+
+# MSBuild options not found in MSVS.
+_MSBuildOnly(_link, "BuildingInIDE", _boolean)
+_MSBuildOnly(_link, "ImageHasSafeExceptionHandlers", _boolean)  # /SAFESEH
+_MSBuildOnly(_link, "LinkDLL", _boolean)  # /DLL Visible='false'
+_MSBuildOnly(_link, "LinkStatus", _boolean)  # /LTCG:STATUS
+_MSBuildOnly(_link, "PreventDllBinding", _boolean)  # /ALLOWBIND
+_MSBuildOnly(_link, "SupportNobindOfDelayLoadedDLL", _boolean)  # /DELAY:NOBIND
+_MSBuildOnly(_link, "TrackerLogDirectory", _folder_name)
+_MSBuildOnly(_link, "MSDOSStubFileName", _file_name)  # /STUB Visible='false'
+_MSBuildOnly(_link, "SectionAlignment", _integer)  # /ALIGN
+_MSBuildOnly(_link, "SpecifySectionAttributes", _string)  # /SECTION
+_MSBuildOnly(
+    _link,
+    "ForceFileOutput",
+    _Enumeration(
+        [],
+        new=[
+            "Enabled",  # /FORCE
+            # /FORCE:MULTIPLE
+            "MultiplyDefinedSymbolOnly",
+            "UndefinedSymbolOnly",
+        ],
+    ),
+)  # /FORCE:UNRESOLVED
+_MSBuildOnly(
+    _link,
+    "CreateHotPatchableImage",
+    _Enumeration(
+        [],
+        new=[
+            "Enabled",  # /FUNCTIONPADMIN
+            "X86Image",  # /FUNCTIONPADMIN:5
+            "X64Image",  # /FUNCTIONPADMIN:6
+            "ItaniumImage",
+        ],
+    ),
+)  # /FUNCTIONPADMIN:16
+_MSBuildOnly(
+    _link,
+    "CLRSupportLastError",
+    _Enumeration(
+        [],
+        new=[
+            "Enabled",  # /CLRSupportLastError
+            "Disabled",  # /CLRSupportLastError:NO
+            # /CLRSupportLastError:SYSTEMDLL
+            "SystemDlls",
+        ],
+    ),
+)
+
+
+# Directives for converting VCResourceCompilerTool to ResourceCompile.
+# See "c:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\1033\rc.xml" for
+# the schema of the MSBuild ResourceCompile settings.
+
+_Same(_rc, "AdditionalOptions", _string_list)
+_Same(_rc, "AdditionalIncludeDirectories", _folder_list)  # /I
+_Same(_rc, "Culture", _Integer(msbuild_base=16))
+_Same(_rc, "IgnoreStandardIncludePath", _boolean)  # /X
+_Same(_rc, "PreprocessorDefinitions", _string_list)  # /D
+_Same(_rc, "ResourceOutputFileName", _string)  # /fo
+_Same(_rc, "ShowProgress", _boolean)  # /v
+# There is no UI in VisualStudio 2008 to set the following properties.
+# However they are found in CL and other tools.  Include them here for
+# completeness, as they are very likely to have the same usage pattern.
+_Same(_rc, "SuppressStartupBanner", _boolean)  # /nologo
+_Same(_rc, "UndefinePreprocessorDefinitions", _string_list)  # /u
+
+# MSBuild options not found in MSVS.
+_MSBuildOnly(_rc, "NullTerminateStrings", _boolean)  # /n
+_MSBuildOnly(_rc, "TrackerLogDirectory", _folder_name)
+
+
+# Directives for converting VCMIDLTool to Midl.
+# See "c:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\1033\midl.xml" for
+# the schema of the MSBuild Midl settings.
+
+_Same(_midl, "AdditionalIncludeDirectories", _folder_list)  # /I
+_Same(_midl, "AdditionalOptions", _string_list)
+_Same(_midl, "CPreprocessOptions", _string)  # /cpp_opt
+_Same(_midl, "ErrorCheckAllocations", _boolean)  # /error allocation
+_Same(_midl, "ErrorCheckBounds", _boolean)  # /error bounds_check
+_Same(_midl, "ErrorCheckEnumRange", _boolean)  # /error enum
+_Same(_midl, "ErrorCheckRefPointers", _boolean)  # /error ref
+_Same(_midl, "ErrorCheckStubData", _boolean)  # /error stub_data
+_Same(_midl, "GenerateStublessProxies", _boolean)  # /Oicf
+_Same(_midl, "GenerateTypeLibrary", _boolean)
+_Same(_midl, "HeaderFileName", _file_name)  # /h
+_Same(_midl, "IgnoreStandardIncludePath", _boolean)  # /no_def_idir
+_Same(_midl, "InterfaceIdentifierFileName", _file_name)  # /iid
+_Same(_midl, "MkTypLibCompatible", _boolean)  # /mktyplib203
+_Same(_midl, "OutputDirectory", _string)  # /out
+_Same(_midl, "PreprocessorDefinitions", _string_list)  # /D
+_Same(_midl, "ProxyFileName", _file_name)  # /proxy
+_Same(_midl, "RedirectOutputAndErrors", _file_name)  # /o
+_Same(_midl, "SuppressStartupBanner", _boolean)  # /nologo
+_Same(_midl, "TypeLibraryName", _file_name)  # /tlb
+_Same(_midl, "UndefinePreprocessorDefinitions", _string_list)  # /U
+_Same(_midl, "WarnAsError", _boolean)  # /WX
+
+_Same(
+    _midl,
+    "DefaultCharType",
+    _Enumeration(["Unsigned", "Signed", "Ascii"]),  # /char unsigned  # /char signed
+)  # /char ascii7
+_Same(
+    _midl,
+    "TargetEnvironment",
+    _Enumeration(
+        [
+            "NotSet",
+            "Win32",  # /env win32
+            "Itanium",  # /env ia64
+            "X64",  # /env x64
+            "ARM64",  # /env arm64
+        ]
+    ),
+)
+_Same(
+    _midl,
+    "EnableErrorChecks",
+    _Enumeration(["EnableCustom", "None", "All"]),  # /error none
+)  # /error all
+_Same(
+    _midl,
+    "StructMemberAlignment",
+    _Enumeration(["NotSet", "1", "2", "4", "8"]),  # Zp1  # Zp2  # Zp4
+)  # Zp8
+_Same(
+    _midl,
+    "WarningLevel",
+    _Enumeration(["0", "1", "2", "3", "4"]),  # /W0  # /W1  # /W2  # /W3
+)  # /W4
+
+_Renamed(_midl, "DLLDataFileName", "DllDataFileName", _file_name)  # /dlldata
+_Renamed(_midl, "ValidateParameters", "ValidateAllParameters", _boolean)  # /robust
+
+# MSBuild options not found in MSVS.
+_MSBuildOnly(_midl, "ApplicationConfigurationMode", _boolean)  # /app_config
+_MSBuildOnly(_midl, "ClientStubFile", _file_name)  # /cstub
+_MSBuildOnly(
+    _midl, "GenerateClientFiles", _Enumeration([], new=["Stub", "None"])  # /client stub
+)  # /client none
+_MSBuildOnly(
+    _midl, "GenerateServerFiles", _Enumeration([], new=["Stub", "None"])  # /client stub
+)  # /client none
+_MSBuildOnly(_midl, "LocaleID", _integer)  # /lcid DECIMAL
+_MSBuildOnly(_midl, "ServerStubFile", _file_name)  # /sstub
+_MSBuildOnly(_midl, "SuppressCompilerWarnings", _boolean)  # /no_warn
+_MSBuildOnly(_midl, "TrackerLogDirectory", _folder_name)
+_MSBuildOnly(
+    _midl, "TypeLibFormat", _Enumeration([], new=["NewFormat", "OldFormat"])  # /newtlb
+)  # /oldtlb
+
+
+# Directives for converting VCLibrarianTool to Lib.
+# See "c:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\1033\lib.xml" for
+# the schema of the MSBuild Lib settings.
+
+_Same(_lib, "AdditionalDependencies", _file_list)
+_Same(_lib, "AdditionalLibraryDirectories", _folder_list)  # /LIBPATH
+_Same(_lib, "AdditionalOptions", _string_list)
+_Same(_lib, "ExportNamedFunctions", _string_list)  # /EXPORT
+_Same(_lib, "ForceSymbolReferences", _string)  # /INCLUDE
+_Same(_lib, "IgnoreAllDefaultLibraries", _boolean)  # /NODEFAULTLIB
+_Same(_lib, "IgnoreSpecificDefaultLibraries", _file_list)  # /NODEFAULTLIB
+_Same(_lib, "ModuleDefinitionFile", _file_name)  # /DEF
+_Same(_lib, "OutputFile", _file_name)  # /OUT
+_Same(_lib, "SuppressStartupBanner", _boolean)  # /NOLOGO
+_Same(_lib, "UseUnicodeResponseFiles", _boolean)
+_Same(_lib, "LinkTimeCodeGeneration", _boolean)  # /LTCG
+_Same(_lib, "TargetMachine", _target_machine_enumeration)
+
+# TODO(jeanluc) _link defines the same value that gets moved to
+# ProjectReference.  We may want to validate that they are consistent.
+_Moved(_lib, "LinkLibraryDependencies", "ProjectReference", _boolean)
+
+_MSBuildOnly(_lib, "DisplayLibrary", _string)  # /LIST Visible='false'
+_MSBuildOnly(
+    _lib,
+    "ErrorReporting",
+    _Enumeration(
+        [],
+        new=[
+            "PromptImmediately",  # /ERRORREPORT:PROMPT
+            "QueueForNextLogin",  # /ERRORREPORT:QUEUE
+            "SendErrorReport",  # /ERRORREPORT:SEND
+            "NoErrorReport",
+        ],
+    ),
+)  # /ERRORREPORT:NONE
+_MSBuildOnly(_lib, "MinimumRequiredVersion", _string)
+_MSBuildOnly(_lib, "Name", _file_name)  # /NAME
+_MSBuildOnly(_lib, "RemoveObjects", _file_list)  # /REMOVE
+_MSBuildOnly(_lib, "SubSystem", _subsystem_enumeration)
+_MSBuildOnly(_lib, "TrackerLogDirectory", _folder_name)
+_MSBuildOnly(_lib, "TreatLibWarningAsErrors", _boolean)  # /WX
+_MSBuildOnly(_lib, "Verbose", _boolean)
+
+
+# Directives for converting VCManifestTool to Mt.
+# See "c:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\1033\mt.xml" for
+# the schema of the MSBuild Lib settings.
+
+# Options that have the same name in MSVS and MSBuild
+_Same(_manifest, "AdditionalManifestFiles", _file_list)  # /manifest
+_Same(_manifest, "AdditionalOptions", _string_list)
+_Same(_manifest, "AssemblyIdentity", _string)  # /identity:
+_Same(_manifest, "ComponentFileName", _file_name)  # /dll
+_Same(_manifest, "GenerateCatalogFiles", _boolean)  # /makecdfs
+_Same(_manifest, "InputResourceManifests", _string)  # /inputresource
+_Same(_manifest, "OutputManifestFile", _file_name)  # /out
+_Same(_manifest, "RegistrarScriptFile", _file_name)  # /rgs
+_Same(_manifest, "ReplacementsFile", _file_name)  # /replacements
+_Same(_manifest, "SuppressStartupBanner", _boolean)  # /nologo
+_Same(_manifest, "TypeLibraryFile", _file_name)  # /tlb:
+_Same(_manifest, "UpdateFileHashes", _boolean)  # /hashupdate
+_Same(_manifest, "UpdateFileHashesSearchPath", _file_name)
+_Same(_manifest, "VerboseOutput", _boolean)  # /verbose
+
+# Options that have moved location.
+_MovedAndRenamed(
+    _manifest,
+    "ManifestResourceFile",
+    "ManifestResourceCompile",
+    "ResourceOutputFileName",
+    _file_name,
+)
+_Moved(_manifest, "EmbedManifest", "", _boolean)
+
+# MSVS options not found in MSBuild.
+_MSVSOnly(_manifest, "DependencyInformationFile", _file_name)
+_MSVSOnly(_manifest, "UseFAT32Workaround", _boolean)
+_MSVSOnly(_manifest, "UseUnicodeResponseFiles", _boolean)
+
+# MSBuild options not found in MSVS.
+_MSBuildOnly(_manifest, "EnableDPIAwareness", _boolean)
+_MSBuildOnly(_manifest, "GenerateCategoryTags", _boolean)  # /category
+_MSBuildOnly(
+    _manifest, "ManifestFromManagedAssembly", _file_name
+)  # /managedassemblyname
+_MSBuildOnly(_manifest, "OutputResourceManifests", _string)  # /outputresource
+_MSBuildOnly(_manifest, "SuppressDependencyElement", _boolean)  # /nodependency
+_MSBuildOnly(_manifest, "TrackerLogDirectory", _folder_name)
+
+
+# Directives for MASM.
+# See "$(VCTargetsPath)\BuildCustomizations\masm.xml" for the schema of the
+# MSBuild MASM settings.
+
+# Options that have the same name in MSVS and MSBuild.
+_Same(_masm, "UseSafeExceptionHandlers", _boolean)  # /safeseh
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/MSVSSettings_test.py b/node_modules/node-gyp/gyp/pylib/gyp/MSVSSettings_test.py
new file mode 100644
index 0000000..6ca0968
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/MSVSSettings_test.py
@@ -0,0 +1,1547 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Unit tests for the MSVSSettings.py file."""
+
+import unittest
+import gyp.MSVSSettings as MSVSSettings
+
+from io import StringIO
+
+
+class TestSequenceFunctions(unittest.TestCase):
+    def setUp(self):
+        self.stderr = StringIO()
+
+    def _ExpectedWarnings(self, expected):
+        """Compares recorded lines to expected warnings."""
+        self.stderr.seek(0)
+        actual = self.stderr.read().split("\n")
+        actual = [line for line in actual if line]
+        self.assertEqual(sorted(expected), sorted(actual))
+
+    def testValidateMSVSSettings_tool_names(self):
+        """Tests that only MSVS tool names are allowed."""
+        MSVSSettings.ValidateMSVSSettings(
+            {
+                "VCCLCompilerTool": {},
+                "VCLinkerTool": {},
+                "VCMIDLTool": {},
+                "foo": {},
+                "VCResourceCompilerTool": {},
+                "VCLibrarianTool": {},
+                "VCManifestTool": {},
+                "ClCompile": {},
+            },
+            self.stderr,
+        )
+        self._ExpectedWarnings(
+            ["Warning: unrecognized tool foo", "Warning: unrecognized tool ClCompile"]
+        )
+
+    def testValidateMSVSSettings_settings(self):
+        """Tests that for invalid MSVS settings."""
+        MSVSSettings.ValidateMSVSSettings(
+            {
+                "VCCLCompilerTool": {
+                    "AdditionalIncludeDirectories": "folder1;folder2",
+                    "AdditionalOptions": ["string1", "string2"],
+                    "AdditionalUsingDirectories": "folder1;folder2",
+                    "AssemblerListingLocation": "a_file_name",
+                    "AssemblerOutput": "0",
+                    "BasicRuntimeChecks": "5",
+                    "BrowseInformation": "fdkslj",
+                    "BrowseInformationFile": "a_file_name",
+                    "BufferSecurityCheck": "true",
+                    "CallingConvention": "-1",
+                    "CompileAs": "1",
+                    "DebugInformationFormat": "2",
+                    "DefaultCharIsUnsigned": "true",
+                    "Detect64BitPortabilityProblems": "true",
+                    "DisableLanguageExtensions": "true",
+                    "DisableSpecificWarnings": "string1;string2",
+                    "EnableEnhancedInstructionSet": "1",
+                    "EnableFiberSafeOptimizations": "true",
+                    "EnableFunctionLevelLinking": "true",
+                    "EnableIntrinsicFunctions": "true",
+                    "EnablePREfast": "true",
+                    "Enableprefast": "bogus",
+                    "ErrorReporting": "1",
+                    "ExceptionHandling": "1",
+                    "ExpandAttributedSource": "true",
+                    "FavorSizeOrSpeed": "1",
+                    "FloatingPointExceptions": "true",
+                    "FloatingPointModel": "1",
+                    "ForceConformanceInForLoopScope": "true",
+                    "ForcedIncludeFiles": "file1;file2",
+                    "ForcedUsingFiles": "file1;file2",
+                    "GeneratePreprocessedFile": "1",
+                    "GenerateXMLDocumentationFiles": "true",
+                    "IgnoreStandardIncludePath": "true",
+                    "InlineFunctionExpansion": "1",
+                    "KeepComments": "true",
+                    "MinimalRebuild": "true",
+                    "ObjectFile": "a_file_name",
+                    "OmitDefaultLibName": "true",
+                    "OmitFramePointers": "true",
+                    "OpenMP": "true",
+                    "Optimization": "1",
+                    "PrecompiledHeaderFile": "a_file_name",
+                    "PrecompiledHeaderThrough": "a_file_name",
+                    "PreprocessorDefinitions": "string1;string2",
+                    "ProgramDataBaseFileName": "a_file_name",
+                    "RuntimeLibrary": "1",
+                    "RuntimeTypeInfo": "true",
+                    "ShowIncludes": "true",
+                    "SmallerTypeCheck": "true",
+                    "StringPooling": "true",
+                    "StructMemberAlignment": "1",
+                    "SuppressStartupBanner": "true",
+                    "TreatWChar_tAsBuiltInType": "true",
+                    "UndefineAllPreprocessorDefinitions": "true",
+                    "UndefinePreprocessorDefinitions": "string1;string2",
+                    "UseFullPaths": "true",
+                    "UsePrecompiledHeader": "1",
+                    "UseUnicodeResponseFiles": "true",
+                    "WarnAsError": "true",
+                    "WarningLevel": "1",
+                    "WholeProgramOptimization": "true",
+                    "XMLDocumentationFileName": "a_file_name",
+                    "ZZXYZ": "bogus",
+                },
+                "VCLinkerTool": {
+                    "AdditionalDependencies": "file1;file2",
+                    "AdditionalDependencies_excluded": "file3",
+                    "AdditionalLibraryDirectories": "folder1;folder2",
+                    "AdditionalManifestDependencies": "file1;file2",
+                    "AdditionalOptions": "a string1",
+                    "AddModuleNamesToAssembly": "file1;file2",
+                    "AllowIsolation": "true",
+                    "AssemblyDebug": "2",
+                    "AssemblyLinkResource": "file1;file2",
+                    "BaseAddress": "a string1",
+                    "CLRImageType": "2",
+                    "CLRThreadAttribute": "2",
+                    "CLRUnmanagedCodeCheck": "true",
+                    "DataExecutionPrevention": "2",
+                    "DelayLoadDLLs": "file1;file2",
+                    "DelaySign": "true",
+                    "Driver": "2",
+                    "EmbedManagedResourceFile": "file1;file2",
+                    "EnableCOMDATFolding": "2",
+                    "EnableUAC": "true",
+                    "EntryPointSymbol": "a string1",
+                    "ErrorReporting": "2",
+                    "FixedBaseAddress": "2",
+                    "ForceSymbolReferences": "file1;file2",
+                    "FunctionOrder": "a_file_name",
+                    "GenerateDebugInformation": "true",
+                    "GenerateManifest": "true",
+                    "GenerateMapFile": "true",
+                    "HeapCommitSize": "a string1",
+                    "HeapReserveSize": "a string1",
+                    "IgnoreAllDefaultLibraries": "true",
+                    "IgnoreDefaultLibraryNames": "file1;file2",
+                    "IgnoreEmbeddedIDL": "true",
+                    "IgnoreImportLibrary": "true",
+                    "ImportLibrary": "a_file_name",
+                    "KeyContainer": "a_file_name",
+                    "KeyFile": "a_file_name",
+                    "LargeAddressAware": "2",
+                    "LinkIncremental": "2",
+                    "LinkLibraryDependencies": "true",
+                    "LinkTimeCodeGeneration": "2",
+                    "ManifestFile": "a_file_name",
+                    "MapExports": "true",
+                    "MapFileName": "a_file_name",
+                    "MergedIDLBaseFileName": "a_file_name",
+                    "MergeSections": "a string1",
+                    "MidlCommandFile": "a_file_name",
+                    "ModuleDefinitionFile": "a_file_name",
+                    "OptimizeForWindows98": "1",
+                    "OptimizeReferences": "2",
+                    "OutputFile": "a_file_name",
+                    "PerUserRedirection": "true",
+                    "Profile": "true",
+                    "ProfileGuidedDatabase": "a_file_name",
+                    "ProgramDatabaseFile": "a_file_name",
+                    "RandomizedBaseAddress": "2",
+                    "RegisterOutput": "true",
+                    "ResourceOnlyDLL": "true",
+                    "SetChecksum": "true",
+                    "ShowProgress": "2",
+                    "StackCommitSize": "a string1",
+                    "StackReserveSize": "a string1",
+                    "StripPrivateSymbols": "a_file_name",
+                    "SubSystem": "2",
+                    "SupportUnloadOfDelayLoadedDLL": "true",
+                    "SuppressStartupBanner": "true",
+                    "SwapRunFromCD": "true",
+                    "SwapRunFromNet": "true",
+                    "TargetMachine": "2",
+                    "TerminalServerAware": "2",
+                    "TurnOffAssemblyGeneration": "true",
+                    "TypeLibraryFile": "a_file_name",
+                    "TypeLibraryResourceID": "33",
+                    "UACExecutionLevel": "2",
+                    "UACUIAccess": "true",
+                    "UseLibraryDependencyInputs": "true",
+                    "UseUnicodeResponseFiles": "true",
+                    "Version": "a string1",
+                },
+                "VCMIDLTool": {
+                    "AdditionalIncludeDirectories": "folder1;folder2",
+                    "AdditionalOptions": "a string1",
+                    "CPreprocessOptions": "a string1",
+                    "DefaultCharType": "1",
+                    "DLLDataFileName": "a_file_name",
+                    "EnableErrorChecks": "1",
+                    "ErrorCheckAllocations": "true",
+                    "ErrorCheckBounds": "true",
+                    "ErrorCheckEnumRange": "true",
+                    "ErrorCheckRefPointers": "true",
+                    "ErrorCheckStubData": "true",
+                    "GenerateStublessProxies": "true",
+                    "GenerateTypeLibrary": "true",
+                    "HeaderFileName": "a_file_name",
+                    "IgnoreStandardIncludePath": "true",
+                    "InterfaceIdentifierFileName": "a_file_name",
+                    "MkTypLibCompatible": "true",
+                    "notgood": "bogus",
+                    "OutputDirectory": "a string1",
+                    "PreprocessorDefinitions": "string1;string2",
+                    "ProxyFileName": "a_file_name",
+                    "RedirectOutputAndErrors": "a_file_name",
+                    "StructMemberAlignment": "1",
+                    "SuppressStartupBanner": "true",
+                    "TargetEnvironment": "1",
+                    "TypeLibraryName": "a_file_name",
+                    "UndefinePreprocessorDefinitions": "string1;string2",
+                    "ValidateParameters": "true",
+                    "WarnAsError": "true",
+                    "WarningLevel": "1",
+                },
+                "VCResourceCompilerTool": {
+                    "AdditionalOptions": "a string1",
+                    "AdditionalIncludeDirectories": "folder1;folder2",
+                    "Culture": "1003",
+                    "IgnoreStandardIncludePath": "true",
+                    "notgood2": "bogus",
+                    "PreprocessorDefinitions": "string1;string2",
+                    "ResourceOutputFileName": "a string1",
+                    "ShowProgress": "true",
+                    "SuppressStartupBanner": "true",
+                    "UndefinePreprocessorDefinitions": "string1;string2",
+                },
+                "VCLibrarianTool": {
+                    "AdditionalDependencies": "file1;file2",
+                    "AdditionalLibraryDirectories": "folder1;folder2",
+                    "AdditionalOptions": "a string1",
+                    "ExportNamedFunctions": "string1;string2",
+                    "ForceSymbolReferences": "a string1",
+                    "IgnoreAllDefaultLibraries": "true",
+                    "IgnoreSpecificDefaultLibraries": "file1;file2",
+                    "LinkLibraryDependencies": "true",
+                    "ModuleDefinitionFile": "a_file_name",
+                    "OutputFile": "a_file_name",
+                    "SuppressStartupBanner": "true",
+                    "UseUnicodeResponseFiles": "true",
+                },
+                "VCManifestTool": {
+                    "AdditionalManifestFiles": "file1;file2",
+                    "AdditionalOptions": "a string1",
+                    "AssemblyIdentity": "a string1",
+                    "ComponentFileName": "a_file_name",
+                    "DependencyInformationFile": "a_file_name",
+                    "GenerateCatalogFiles": "true",
+                    "InputResourceManifests": "a string1",
+                    "ManifestResourceFile": "a_file_name",
+                    "OutputManifestFile": "a_file_name",
+                    "RegistrarScriptFile": "a_file_name",
+                    "ReplacementsFile": "a_file_name",
+                    "SuppressStartupBanner": "true",
+                    "TypeLibraryFile": "a_file_name",
+                    "UpdateFileHashes": "truel",
+                    "UpdateFileHashesSearchPath": "a_file_name",
+                    "UseFAT32Workaround": "true",
+                    "UseUnicodeResponseFiles": "true",
+                    "VerboseOutput": "true",
+                },
+            },
+            self.stderr,
+        )
+        self._ExpectedWarnings(
+            [
+                "Warning: for VCCLCompilerTool/BasicRuntimeChecks, "
+                "index value (5) not in expected range [0, 4)",
+                "Warning: for VCCLCompilerTool/BrowseInformation, "
+                "invalid literal for int() with base 10: 'fdkslj'",
+                "Warning: for VCCLCompilerTool/CallingConvention, "
+                "index value (-1) not in expected range [0, 4)",
+                "Warning: for VCCLCompilerTool/DebugInformationFormat, "
+                "converted value for 2 not specified.",
+                "Warning: unrecognized setting VCCLCompilerTool/Enableprefast",
+                "Warning: unrecognized setting VCCLCompilerTool/ZZXYZ",
+                "Warning: for VCLinkerTool/TargetMachine, "
+                "converted value for 2 not specified.",
+                "Warning: unrecognized setting VCMIDLTool/notgood",
+                "Warning: unrecognized setting VCResourceCompilerTool/notgood2",
+                "Warning: for VCManifestTool/UpdateFileHashes, "
+                "expected bool; got 'truel'"
+                "",
+            ]
+        )
+
+    def testValidateMSBuildSettings_settings(self):
+        """Tests that for invalid MSBuild settings."""
+        MSVSSettings.ValidateMSBuildSettings(
+            {
+                "ClCompile": {
+                    "AdditionalIncludeDirectories": "folder1;folder2",
+                    "AdditionalOptions": ["string1", "string2"],
+                    "AdditionalUsingDirectories": "folder1;folder2",
+                    "AssemblerListingLocation": "a_file_name",
+                    "AssemblerOutput": "NoListing",
+                    "BasicRuntimeChecks": "StackFrameRuntimeCheck",
+                    "BrowseInformation": "false",
+                    "BrowseInformationFile": "a_file_name",
+                    "BufferSecurityCheck": "true",
+                    "BuildingInIDE": "true",
+                    "CallingConvention": "Cdecl",
+                    "CompileAs": "CompileAsC",
+                    "CompileAsManaged": "true",
+                    "CreateHotpatchableImage": "true",
+                    "DebugInformationFormat": "ProgramDatabase",
+                    "DisableLanguageExtensions": "true",
+                    "DisableSpecificWarnings": "string1;string2",
+                    "EnableEnhancedInstructionSet": "StreamingSIMDExtensions",
+                    "EnableFiberSafeOptimizations": "true",
+                    "EnablePREfast": "true",
+                    "Enableprefast": "bogus",
+                    "ErrorReporting": "Prompt",
+                    "ExceptionHandling": "SyncCThrow",
+                    "ExpandAttributedSource": "true",
+                    "FavorSizeOrSpeed": "Neither",
+                    "FloatingPointExceptions": "true",
+                    "FloatingPointModel": "Precise",
+                    "ForceConformanceInForLoopScope": "true",
+                    "ForcedIncludeFiles": "file1;file2",
+                    "ForcedUsingFiles": "file1;file2",
+                    "FunctionLevelLinking": "false",
+                    "GenerateXMLDocumentationFiles": "true",
+                    "IgnoreStandardIncludePath": "true",
+                    "InlineFunctionExpansion": "OnlyExplicitInline",
+                    "IntrinsicFunctions": "false",
+                    "MinimalRebuild": "true",
+                    "MultiProcessorCompilation": "true",
+                    "ObjectFileName": "a_file_name",
+                    "OmitDefaultLibName": "true",
+                    "OmitFramePointers": "true",
+                    "OpenMPSupport": "true",
+                    "Optimization": "Disabled",
+                    "PrecompiledHeader": "NotUsing",
+                    "PrecompiledHeaderFile": "a_file_name",
+                    "PrecompiledHeaderOutputFile": "a_file_name",
+                    "PreprocessKeepComments": "true",
+                    "PreprocessorDefinitions": "string1;string2",
+                    "PreprocessOutputPath": "a string1",
+                    "PreprocessSuppressLineNumbers": "false",
+                    "PreprocessToFile": "false",
+                    "ProcessorNumber": "33",
+                    "ProgramDataBaseFileName": "a_file_name",
+                    "RuntimeLibrary": "MultiThreaded",
+                    "RuntimeTypeInfo": "true",
+                    "ShowIncludes": "true",
+                    "SmallerTypeCheck": "true",
+                    "StringPooling": "true",
+                    "StructMemberAlignment": "1Byte",
+                    "SuppressStartupBanner": "true",
+                    "TrackerLogDirectory": "a_folder",
+                    "TreatSpecificWarningsAsErrors": "string1;string2",
+                    "TreatWarningAsError": "true",
+                    "TreatWChar_tAsBuiltInType": "true",
+                    "UndefineAllPreprocessorDefinitions": "true",
+                    "UndefinePreprocessorDefinitions": "string1;string2",
+                    "UseFullPaths": "true",
+                    "UseUnicodeForAssemblerListing": "true",
+                    "WarningLevel": "TurnOffAllWarnings",
+                    "WholeProgramOptimization": "true",
+                    "XMLDocumentationFileName": "a_file_name",
+                    "ZZXYZ": "bogus",
+                },
+                "Link": {
+                    "AdditionalDependencies": "file1;file2",
+                    "AdditionalLibraryDirectories": "folder1;folder2",
+                    "AdditionalManifestDependencies": "file1;file2",
+                    "AdditionalOptions": "a string1",
+                    "AddModuleNamesToAssembly": "file1;file2",
+                    "AllowIsolation": "true",
+                    "AssemblyDebug": "",
+                    "AssemblyLinkResource": "file1;file2",
+                    "BaseAddress": "a string1",
+                    "BuildingInIDE": "true",
+                    "CLRImageType": "ForceIJWImage",
+                    "CLRSupportLastError": "Enabled",
+                    "CLRThreadAttribute": "MTAThreadingAttribute",
+                    "CLRUnmanagedCodeCheck": "true",
+                    "CreateHotPatchableImage": "X86Image",
+                    "DataExecutionPrevention": "false",
+                    "DelayLoadDLLs": "file1;file2",
+                    "DelaySign": "true",
+                    "Driver": "NotSet",
+                    "EmbedManagedResourceFile": "file1;file2",
+                    "EnableCOMDATFolding": "false",
+                    "EnableUAC": "true",
+                    "EntryPointSymbol": "a string1",
+                    "FixedBaseAddress": "false",
+                    "ForceFileOutput": "Enabled",
+                    "ForceSymbolReferences": "file1;file2",
+                    "FunctionOrder": "a_file_name",
+                    "GenerateDebugInformation": "true",
+                    "GenerateMapFile": "true",
+                    "HeapCommitSize": "a string1",
+                    "HeapReserveSize": "a string1",
+                    "IgnoreAllDefaultLibraries": "true",
+                    "IgnoreEmbeddedIDL": "true",
+                    "IgnoreSpecificDefaultLibraries": "a_file_list",
+                    "ImageHasSafeExceptionHandlers": "true",
+                    "ImportLibrary": "a_file_name",
+                    "KeyContainer": "a_file_name",
+                    "KeyFile": "a_file_name",
+                    "LargeAddressAware": "false",
+                    "LinkDLL": "true",
+                    "LinkErrorReporting": "SendErrorReport",
+                    "LinkStatus": "true",
+                    "LinkTimeCodeGeneration": "UseLinkTimeCodeGeneration",
+                    "ManifestFile": "a_file_name",
+                    "MapExports": "true",
+                    "MapFileName": "a_file_name",
+                    "MergedIDLBaseFileName": "a_file_name",
+                    "MergeSections": "a string1",
+                    "MidlCommandFile": "a_file_name",
+                    "MinimumRequiredVersion": "a string1",
+                    "ModuleDefinitionFile": "a_file_name",
+                    "MSDOSStubFileName": "a_file_name",
+                    "NoEntryPoint": "true",
+                    "OptimizeReferences": "false",
+                    "OutputFile": "a_file_name",
+                    "PerUserRedirection": "true",
+                    "PreventDllBinding": "true",
+                    "Profile": "true",
+                    "ProfileGuidedDatabase": "a_file_name",
+                    "ProgramDatabaseFile": "a_file_name",
+                    "RandomizedBaseAddress": "false",
+                    "RegisterOutput": "true",
+                    "SectionAlignment": "33",
+                    "SetChecksum": "true",
+                    "ShowProgress": "LinkVerboseREF",
+                    "SpecifySectionAttributes": "a string1",
+                    "StackCommitSize": "a string1",
+                    "StackReserveSize": "a string1",
+                    "StripPrivateSymbols": "a_file_name",
+                    "SubSystem": "Console",
+                    "SupportNobindOfDelayLoadedDLL": "true",
+                    "SupportUnloadOfDelayLoadedDLL": "true",
+                    "SuppressStartupBanner": "true",
+                    "SwapRunFromCD": "true",
+                    "SwapRunFromNET": "true",
+                    "TargetMachine": "MachineX86",
+                    "TerminalServerAware": "false",
+                    "TrackerLogDirectory": "a_folder",
+                    "TreatLinkerWarningAsErrors": "true",
+                    "TurnOffAssemblyGeneration": "true",
+                    "TypeLibraryFile": "a_file_name",
+                    "TypeLibraryResourceID": "33",
+                    "UACExecutionLevel": "AsInvoker",
+                    "UACUIAccess": "true",
+                    "Version": "a string1",
+                },
+                "ResourceCompile": {
+                    "AdditionalIncludeDirectories": "folder1;folder2",
+                    "AdditionalOptions": "a string1",
+                    "Culture": "0x236",
+                    "IgnoreStandardIncludePath": "true",
+                    "NullTerminateStrings": "true",
+                    "PreprocessorDefinitions": "string1;string2",
+                    "ResourceOutputFileName": "a string1",
+                    "ShowProgress": "true",
+                    "SuppressStartupBanner": "true",
+                    "TrackerLogDirectory": "a_folder",
+                    "UndefinePreprocessorDefinitions": "string1;string2",
+                },
+                "Midl": {
+                    "AdditionalIncludeDirectories": "folder1;folder2",
+                    "AdditionalOptions": "a string1",
+                    "ApplicationConfigurationMode": "true",
+                    "ClientStubFile": "a_file_name",
+                    "CPreprocessOptions": "a string1",
+                    "DefaultCharType": "Signed",
+                    "DllDataFileName": "a_file_name",
+                    "EnableErrorChecks": "EnableCustom",
+                    "ErrorCheckAllocations": "true",
+                    "ErrorCheckBounds": "true",
+                    "ErrorCheckEnumRange": "true",
+                    "ErrorCheckRefPointers": "true",
+                    "ErrorCheckStubData": "true",
+                    "GenerateClientFiles": "Stub",
+                    "GenerateServerFiles": "None",
+                    "GenerateStublessProxies": "true",
+                    "GenerateTypeLibrary": "true",
+                    "HeaderFileName": "a_file_name",
+                    "IgnoreStandardIncludePath": "true",
+                    "InterfaceIdentifierFileName": "a_file_name",
+                    "LocaleID": "33",
+                    "MkTypLibCompatible": "true",
+                    "OutputDirectory": "a string1",
+                    "PreprocessorDefinitions": "string1;string2",
+                    "ProxyFileName": "a_file_name",
+                    "RedirectOutputAndErrors": "a_file_name",
+                    "ServerStubFile": "a_file_name",
+                    "StructMemberAlignment": "NotSet",
+                    "SuppressCompilerWarnings": "true",
+                    "SuppressStartupBanner": "true",
+                    "TargetEnvironment": "Itanium",
+                    "TrackerLogDirectory": "a_folder",
+                    "TypeLibFormat": "NewFormat",
+                    "TypeLibraryName": "a_file_name",
+                    "UndefinePreprocessorDefinitions": "string1;string2",
+                    "ValidateAllParameters": "true",
+                    "WarnAsError": "true",
+                    "WarningLevel": "1",
+                },
+                "Lib": {
+                    "AdditionalDependencies": "file1;file2",
+                    "AdditionalLibraryDirectories": "folder1;folder2",
+                    "AdditionalOptions": "a string1",
+                    "DisplayLibrary": "a string1",
+                    "ErrorReporting": "PromptImmediately",
+                    "ExportNamedFunctions": "string1;string2",
+                    "ForceSymbolReferences": "a string1",
+                    "IgnoreAllDefaultLibraries": "true",
+                    "IgnoreSpecificDefaultLibraries": "file1;file2",
+                    "LinkTimeCodeGeneration": "true",
+                    "MinimumRequiredVersion": "a string1",
+                    "ModuleDefinitionFile": "a_file_name",
+                    "Name": "a_file_name",
+                    "OutputFile": "a_file_name",
+                    "RemoveObjects": "file1;file2",
+                    "SubSystem": "Console",
+                    "SuppressStartupBanner": "true",
+                    "TargetMachine": "MachineX86i",
+                    "TrackerLogDirectory": "a_folder",
+                    "TreatLibWarningAsErrors": "true",
+                    "UseUnicodeResponseFiles": "true",
+                    "Verbose": "true",
+                },
+                "Manifest": {
+                    "AdditionalManifestFiles": "file1;file2",
+                    "AdditionalOptions": "a string1",
+                    "AssemblyIdentity": "a string1",
+                    "ComponentFileName": "a_file_name",
+                    "EnableDPIAwareness": "fal",
+                    "GenerateCatalogFiles": "truel",
+                    "GenerateCategoryTags": "true",
+                    "InputResourceManifests": "a string1",
+                    "ManifestFromManagedAssembly": "a_file_name",
+                    "notgood3": "bogus",
+                    "OutputManifestFile": "a_file_name",
+                    "OutputResourceManifests": "a string1",
+                    "RegistrarScriptFile": "a_file_name",
+                    "ReplacementsFile": "a_file_name",
+                    "SuppressDependencyElement": "true",
+                    "SuppressStartupBanner": "true",
+                    "TrackerLogDirectory": "a_folder",
+                    "TypeLibraryFile": "a_file_name",
+                    "UpdateFileHashes": "true",
+                    "UpdateFileHashesSearchPath": "a_file_name",
+                    "VerboseOutput": "true",
+                },
+                "ProjectReference": {
+                    "LinkLibraryDependencies": "true",
+                    "UseLibraryDependencyInputs": "true",
+                },
+                "ManifestResourceCompile": {"ResourceOutputFileName": "a_file_name"},
+                "": {
+                    "EmbedManifest": "true",
+                    "GenerateManifest": "true",
+                    "IgnoreImportLibrary": "true",
+                    "LinkIncremental": "false",
+                },
+            },
+            self.stderr,
+        )
+        self._ExpectedWarnings(
+            [
+                "Warning: unrecognized setting ClCompile/Enableprefast",
+                "Warning: unrecognized setting ClCompile/ZZXYZ",
+                "Warning: unrecognized setting Manifest/notgood3",
+                "Warning: for Manifest/GenerateCatalogFiles, "
+                "expected bool; got 'truel'",
+                "Warning: for Lib/TargetMachine, unrecognized enumerated value "
+                "MachineX86i",
+                "Warning: for Manifest/EnableDPIAwareness, expected bool; got 'fal'",
+            ]
+        )
+
+    def testConvertToMSBuildSettings_empty(self):
+        """Tests an empty conversion."""
+        msvs_settings = {}
+        expected_msbuild_settings = {}
+        actual_msbuild_settings = MSVSSettings.ConvertToMSBuildSettings(
+            msvs_settings, self.stderr
+        )
+        self.assertEqual(expected_msbuild_settings, actual_msbuild_settings)
+        self._ExpectedWarnings([])
+
+    def testConvertToMSBuildSettings_minimal(self):
+        """Tests a minimal conversion."""
+        msvs_settings = {
+            "VCCLCompilerTool": {
+                "AdditionalIncludeDirectories": "dir1",
+                "AdditionalOptions": "/foo",
+                "BasicRuntimeChecks": "0",
+            },
+            "VCLinkerTool": {
+                "LinkTimeCodeGeneration": "1",
+                "ErrorReporting": "1",
+                "DataExecutionPrevention": "2",
+            },
+        }
+        expected_msbuild_settings = {
+            "ClCompile": {
+                "AdditionalIncludeDirectories": "dir1",
+                "AdditionalOptions": "/foo",
+                "BasicRuntimeChecks": "Default",
+            },
+            "Link": {
+                "LinkTimeCodeGeneration": "UseLinkTimeCodeGeneration",
+                "LinkErrorReporting": "PromptImmediately",
+                "DataExecutionPrevention": "true",
+            },
+        }
+        actual_msbuild_settings = MSVSSettings.ConvertToMSBuildSettings(
+            msvs_settings, self.stderr
+        )
+        self.assertEqual(expected_msbuild_settings, actual_msbuild_settings)
+        self._ExpectedWarnings([])
+
+    def testConvertToMSBuildSettings_warnings(self):
+        """Tests conversion that generates warnings."""
+        msvs_settings = {
+            "VCCLCompilerTool": {
+                "AdditionalIncludeDirectories": "1",
+                "AdditionalOptions": "2",
+                # These are incorrect values:
+                "BasicRuntimeChecks": "12",
+                "BrowseInformation": "21",
+                "UsePrecompiledHeader": "13",
+                "GeneratePreprocessedFile": "14",
+            },
+            "VCLinkerTool": {
+                # These are incorrect values:
+                "Driver": "10",
+                "LinkTimeCodeGeneration": "31",
+                "ErrorReporting": "21",
+                "FixedBaseAddress": "6",
+            },
+            "VCResourceCompilerTool": {
+                # Custom
+                "Culture": "1003"
+            },
+        }
+        expected_msbuild_settings = {
+            "ClCompile": {
+                "AdditionalIncludeDirectories": "1",
+                "AdditionalOptions": "2",
+            },
+            "Link": {},
+            "ResourceCompile": {
+                # Custom
+                "Culture": "0x03eb"
+            },
+        }
+        actual_msbuild_settings = MSVSSettings.ConvertToMSBuildSettings(
+            msvs_settings, self.stderr
+        )
+        self.assertEqual(expected_msbuild_settings, actual_msbuild_settings)
+        self._ExpectedWarnings(
+            [
+                "Warning: while converting VCCLCompilerTool/BasicRuntimeChecks to "
+                "MSBuild, index value (12) not in expected range [0, 4)",
+                "Warning: while converting VCCLCompilerTool/BrowseInformation to "
+                "MSBuild, index value (21) not in expected range [0, 3)",
+                "Warning: while converting VCCLCompilerTool/UsePrecompiledHeader to "
+                "MSBuild, index value (13) not in expected range [0, 3)",
+                "Warning: while converting "
+                "VCCLCompilerTool/GeneratePreprocessedFile to "
+                "MSBuild, value must be one of [0, 1, 2]; got 14",
+                "Warning: while converting VCLinkerTool/Driver to "
+                "MSBuild, index value (10) not in expected range [0, 4)",
+                "Warning: while converting VCLinkerTool/LinkTimeCodeGeneration to "
+                "MSBuild, index value (31) not in expected range [0, 5)",
+                "Warning: while converting VCLinkerTool/ErrorReporting to "
+                "MSBuild, index value (21) not in expected range [0, 3)",
+                "Warning: while converting VCLinkerTool/FixedBaseAddress to "
+                "MSBuild, index value (6) not in expected range [0, 3)",
+            ]
+        )
+
+    def testConvertToMSBuildSettings_full_synthetic(self):
+        """Tests conversion of all the MSBuild settings."""
+        msvs_settings = {
+            "VCCLCompilerTool": {
+                "AdditionalIncludeDirectories": "folder1;folder2;folder3",
+                "AdditionalOptions": "a_string",
+                "AdditionalUsingDirectories": "folder1;folder2;folder3",
+                "AssemblerListingLocation": "a_file_name",
+                "AssemblerOutput": "0",
+                "BasicRuntimeChecks": "1",
+                "BrowseInformation": "2",
+                "BrowseInformationFile": "a_file_name",
+                "BufferSecurityCheck": "true",
+                "CallingConvention": "0",
+                "CompileAs": "1",
+                "DebugInformationFormat": "4",
+                "DefaultCharIsUnsigned": "true",
+                "Detect64BitPortabilityProblems": "true",
+                "DisableLanguageExtensions": "true",
+                "DisableSpecificWarnings": "d1;d2;d3",
+                "EnableEnhancedInstructionSet": "0",
+                "EnableFiberSafeOptimizations": "true",
+                "EnableFunctionLevelLinking": "true",
+                "EnableIntrinsicFunctions": "true",
+                "EnablePREfast": "true",
+                "ErrorReporting": "1",
+                "ExceptionHandling": "2",
+                "ExpandAttributedSource": "true",
+                "FavorSizeOrSpeed": "0",
+                "FloatingPointExceptions": "true",
+                "FloatingPointModel": "1",
+                "ForceConformanceInForLoopScope": "true",
+                "ForcedIncludeFiles": "file1;file2;file3",
+                "ForcedUsingFiles": "file1;file2;file3",
+                "GeneratePreprocessedFile": "1",
+                "GenerateXMLDocumentationFiles": "true",
+                "IgnoreStandardIncludePath": "true",
+                "InlineFunctionExpansion": "2",
+                "KeepComments": "true",
+                "MinimalRebuild": "true",
+                "ObjectFile": "a_file_name",
+                "OmitDefaultLibName": "true",
+                "OmitFramePointers": "true",
+                "OpenMP": "true",
+                "Optimization": "3",
+                "PrecompiledHeaderFile": "a_file_name",
+                "PrecompiledHeaderThrough": "a_file_name",
+                "PreprocessorDefinitions": "d1;d2;d3",
+                "ProgramDataBaseFileName": "a_file_name",
+                "RuntimeLibrary": "0",
+                "RuntimeTypeInfo": "true",
+                "ShowIncludes": "true",
+                "SmallerTypeCheck": "true",
+                "StringPooling": "true",
+                "StructMemberAlignment": "1",
+                "SuppressStartupBanner": "true",
+                "TreatWChar_tAsBuiltInType": "true",
+                "UndefineAllPreprocessorDefinitions": "true",
+                "UndefinePreprocessorDefinitions": "d1;d2;d3",
+                "UseFullPaths": "true",
+                "UsePrecompiledHeader": "1",
+                "UseUnicodeResponseFiles": "true",
+                "WarnAsError": "true",
+                "WarningLevel": "2",
+                "WholeProgramOptimization": "true",
+                "XMLDocumentationFileName": "a_file_name",
+            },
+            "VCLinkerTool": {
+                "AdditionalDependencies": "file1;file2;file3",
+                "AdditionalLibraryDirectories": "folder1;folder2;folder3",
+                "AdditionalLibraryDirectories_excluded": "folder1;folder2;folder3",
+                "AdditionalManifestDependencies": "file1;file2;file3",
+                "AdditionalOptions": "a_string",
+                "AddModuleNamesToAssembly": "file1;file2;file3",
+                "AllowIsolation": "true",
+                "AssemblyDebug": "0",
+                "AssemblyLinkResource": "file1;file2;file3",
+                "BaseAddress": "a_string",
+                "CLRImageType": "1",
+                "CLRThreadAttribute": "2",
+                "CLRUnmanagedCodeCheck": "true",
+                "DataExecutionPrevention": "0",
+                "DelayLoadDLLs": "file1;file2;file3",
+                "DelaySign": "true",
+                "Driver": "1",
+                "EmbedManagedResourceFile": "file1;file2;file3",
+                "EnableCOMDATFolding": "0",
+                "EnableUAC": "true",
+                "EntryPointSymbol": "a_string",
+                "ErrorReporting": "0",
+                "FixedBaseAddress": "1",
+                "ForceSymbolReferences": "file1;file2;file3",
+                "FunctionOrder": "a_file_name",
+                "GenerateDebugInformation": "true",
+                "GenerateManifest": "true",
+                "GenerateMapFile": "true",
+                "HeapCommitSize": "a_string",
+                "HeapReserveSize": "a_string",
+                "IgnoreAllDefaultLibraries": "true",
+                "IgnoreDefaultLibraryNames": "file1;file2;file3",
+                "IgnoreEmbeddedIDL": "true",
+                "IgnoreImportLibrary": "true",
+                "ImportLibrary": "a_file_name",
+                "KeyContainer": "a_file_name",
+                "KeyFile": "a_file_name",
+                "LargeAddressAware": "2",
+                "LinkIncremental": "1",
+                "LinkLibraryDependencies": "true",
+                "LinkTimeCodeGeneration": "2",
+                "ManifestFile": "a_file_name",
+                "MapExports": "true",
+                "MapFileName": "a_file_name",
+                "MergedIDLBaseFileName": "a_file_name",
+                "MergeSections": "a_string",
+                "MidlCommandFile": "a_file_name",
+                "ModuleDefinitionFile": "a_file_name",
+                "OptimizeForWindows98": "1",
+                "OptimizeReferences": "0",
+                "OutputFile": "a_file_name",
+                "PerUserRedirection": "true",
+                "Profile": "true",
+                "ProfileGuidedDatabase": "a_file_name",
+                "ProgramDatabaseFile": "a_file_name",
+                "RandomizedBaseAddress": "1",
+                "RegisterOutput": "true",
+                "ResourceOnlyDLL": "true",
+                "SetChecksum": "true",
+                "ShowProgress": "0",
+                "StackCommitSize": "a_string",
+                "StackReserveSize": "a_string",
+                "StripPrivateSymbols": "a_file_name",
+                "SubSystem": "2",
+                "SupportUnloadOfDelayLoadedDLL": "true",
+                "SuppressStartupBanner": "true",
+                "SwapRunFromCD": "true",
+                "SwapRunFromNet": "true",
+                "TargetMachine": "3",
+                "TerminalServerAware": "2",
+                "TurnOffAssemblyGeneration": "true",
+                "TypeLibraryFile": "a_file_name",
+                "TypeLibraryResourceID": "33",
+                "UACExecutionLevel": "1",
+                "UACUIAccess": "true",
+                "UseLibraryDependencyInputs": "false",
+                "UseUnicodeResponseFiles": "true",
+                "Version": "a_string",
+            },
+            "VCResourceCompilerTool": {
+                "AdditionalIncludeDirectories": "folder1;folder2;folder3",
+                "AdditionalOptions": "a_string",
+                "Culture": "1003",
+                "IgnoreStandardIncludePath": "true",
+                "PreprocessorDefinitions": "d1;d2;d3",
+                "ResourceOutputFileName": "a_string",
+                "ShowProgress": "true",
+                "SuppressStartupBanner": "true",
+                "UndefinePreprocessorDefinitions": "d1;d2;d3",
+            },
+            "VCMIDLTool": {
+                "AdditionalIncludeDirectories": "folder1;folder2;folder3",
+                "AdditionalOptions": "a_string",
+                "CPreprocessOptions": "a_string",
+                "DefaultCharType": "0",
+                "DLLDataFileName": "a_file_name",
+                "EnableErrorChecks": "2",
+                "ErrorCheckAllocations": "true",
+                "ErrorCheckBounds": "true",
+                "ErrorCheckEnumRange": "true",
+                "ErrorCheckRefPointers": "true",
+                "ErrorCheckStubData": "true",
+                "GenerateStublessProxies": "true",
+                "GenerateTypeLibrary": "true",
+                "HeaderFileName": "a_file_name",
+                "IgnoreStandardIncludePath": "true",
+                "InterfaceIdentifierFileName": "a_file_name",
+                "MkTypLibCompatible": "true",
+                "OutputDirectory": "a_string",
+                "PreprocessorDefinitions": "d1;d2;d3",
+                "ProxyFileName": "a_file_name",
+                "RedirectOutputAndErrors": "a_file_name",
+                "StructMemberAlignment": "3",
+                "SuppressStartupBanner": "true",
+                "TargetEnvironment": "1",
+                "TypeLibraryName": "a_file_name",
+                "UndefinePreprocessorDefinitions": "d1;d2;d3",
+                "ValidateParameters": "true",
+                "WarnAsError": "true",
+                "WarningLevel": "4",
+            },
+            "VCLibrarianTool": {
+                "AdditionalDependencies": "file1;file2;file3",
+                "AdditionalLibraryDirectories": "folder1;folder2;folder3",
+                "AdditionalLibraryDirectories_excluded": "folder1;folder2;folder3",
+                "AdditionalOptions": "a_string",
+                "ExportNamedFunctions": "d1;d2;d3",
+                "ForceSymbolReferences": "a_string",
+                "IgnoreAllDefaultLibraries": "true",
+                "IgnoreSpecificDefaultLibraries": "file1;file2;file3",
+                "LinkLibraryDependencies": "true",
+                "ModuleDefinitionFile": "a_file_name",
+                "OutputFile": "a_file_name",
+                "SuppressStartupBanner": "true",
+                "UseUnicodeResponseFiles": "true",
+            },
+            "VCManifestTool": {
+                "AdditionalManifestFiles": "file1;file2;file3",
+                "AdditionalOptions": "a_string",
+                "AssemblyIdentity": "a_string",
+                "ComponentFileName": "a_file_name",
+                "DependencyInformationFile": "a_file_name",
+                "EmbedManifest": "true",
+                "GenerateCatalogFiles": "true",
+                "InputResourceManifests": "a_string",
+                "ManifestResourceFile": "my_name",
+                "OutputManifestFile": "a_file_name",
+                "RegistrarScriptFile": "a_file_name",
+                "ReplacementsFile": "a_file_name",
+                "SuppressStartupBanner": "true",
+                "TypeLibraryFile": "a_file_name",
+                "UpdateFileHashes": "true",
+                "UpdateFileHashesSearchPath": "a_file_name",
+                "UseFAT32Workaround": "true",
+                "UseUnicodeResponseFiles": "true",
+                "VerboseOutput": "true",
+            },
+        }
+        expected_msbuild_settings = {
+            "ClCompile": {
+                "AdditionalIncludeDirectories": "folder1;folder2;folder3",
+                "AdditionalOptions": "a_string /J",
+                "AdditionalUsingDirectories": "folder1;folder2;folder3",
+                "AssemblerListingLocation": "a_file_name",
+                "AssemblerOutput": "NoListing",
+                "BasicRuntimeChecks": "StackFrameRuntimeCheck",
+                "BrowseInformation": "true",
+                "BrowseInformationFile": "a_file_name",
+                "BufferSecurityCheck": "true",
+                "CallingConvention": "Cdecl",
+                "CompileAs": "CompileAsC",
+                "DebugInformationFormat": "EditAndContinue",
+                "DisableLanguageExtensions": "true",
+                "DisableSpecificWarnings": "d1;d2;d3",
+                "EnableEnhancedInstructionSet": "NotSet",
+                "EnableFiberSafeOptimizations": "true",
+                "EnablePREfast": "true",
+                "ErrorReporting": "Prompt",
+                "ExceptionHandling": "Async",
+                "ExpandAttributedSource": "true",
+                "FavorSizeOrSpeed": "Neither",
+                "FloatingPointExceptions": "true",
+                "FloatingPointModel": "Strict",
+                "ForceConformanceInForLoopScope": "true",
+                "ForcedIncludeFiles": "file1;file2;file3",
+                "ForcedUsingFiles": "file1;file2;file3",
+                "FunctionLevelLinking": "true",
+                "GenerateXMLDocumentationFiles": "true",
+                "IgnoreStandardIncludePath": "true",
+                "InlineFunctionExpansion": "AnySuitable",
+                "IntrinsicFunctions": "true",
+                "MinimalRebuild": "true",
+                "ObjectFileName": "a_file_name",
+                "OmitDefaultLibName": "true",
+                "OmitFramePointers": "true",
+                "OpenMPSupport": "true",
+                "Optimization": "Full",
+                "PrecompiledHeader": "Create",
+                "PrecompiledHeaderFile": "a_file_name",
+                "PrecompiledHeaderOutputFile": "a_file_name",
+                "PreprocessKeepComments": "true",
+                "PreprocessorDefinitions": "d1;d2;d3",
+                "PreprocessSuppressLineNumbers": "false",
+                "PreprocessToFile": "true",
+                "ProgramDataBaseFileName": "a_file_name",
+                "RuntimeLibrary": "MultiThreaded",
+                "RuntimeTypeInfo": "true",
+                "ShowIncludes": "true",
+                "SmallerTypeCheck": "true",
+                "StringPooling": "true",
+                "StructMemberAlignment": "1Byte",
+                "SuppressStartupBanner": "true",
+                "TreatWarningAsError": "true",
+                "TreatWChar_tAsBuiltInType": "true",
+                "UndefineAllPreprocessorDefinitions": "true",
+                "UndefinePreprocessorDefinitions": "d1;d2;d3",
+                "UseFullPaths": "true",
+                "WarningLevel": "Level2",
+                "WholeProgramOptimization": "true",
+                "XMLDocumentationFileName": "a_file_name",
+            },
+            "Link": {
+                "AdditionalDependencies": "file1;file2;file3",
+                "AdditionalLibraryDirectories": "folder1;folder2;folder3",
+                "AdditionalManifestDependencies": "file1;file2;file3",
+                "AdditionalOptions": "a_string",
+                "AddModuleNamesToAssembly": "file1;file2;file3",
+                "AllowIsolation": "true",
+                "AssemblyDebug": "",
+                "AssemblyLinkResource": "file1;file2;file3",
+                "BaseAddress": "a_string",
+                "CLRImageType": "ForceIJWImage",
+                "CLRThreadAttribute": "STAThreadingAttribute",
+                "CLRUnmanagedCodeCheck": "true",
+                "DataExecutionPrevention": "",
+                "DelayLoadDLLs": "file1;file2;file3",
+                "DelaySign": "true",
+                "Driver": "Driver",
+                "EmbedManagedResourceFile": "file1;file2;file3",
+                "EnableCOMDATFolding": "",
+                "EnableUAC": "true",
+                "EntryPointSymbol": "a_string",
+                "FixedBaseAddress": "false",
+                "ForceSymbolReferences": "file1;file2;file3",
+                "FunctionOrder": "a_file_name",
+                "GenerateDebugInformation": "true",
+                "GenerateMapFile": "true",
+                "HeapCommitSize": "a_string",
+                "HeapReserveSize": "a_string",
+                "IgnoreAllDefaultLibraries": "true",
+                "IgnoreEmbeddedIDL": "true",
+                "IgnoreSpecificDefaultLibraries": "file1;file2;file3",
+                "ImportLibrary": "a_file_name",
+                "KeyContainer": "a_file_name",
+                "KeyFile": "a_file_name",
+                "LargeAddressAware": "true",
+                "LinkErrorReporting": "NoErrorReport",
+                "LinkTimeCodeGeneration": "PGInstrument",
+                "ManifestFile": "a_file_name",
+                "MapExports": "true",
+                "MapFileName": "a_file_name",
+                "MergedIDLBaseFileName": "a_file_name",
+                "MergeSections": "a_string",
+                "MidlCommandFile": "a_file_name",
+                "ModuleDefinitionFile": "a_file_name",
+                "NoEntryPoint": "true",
+                "OptimizeReferences": "",
+                "OutputFile": "a_file_name",
+                "PerUserRedirection": "true",
+                "Profile": "true",
+                "ProfileGuidedDatabase": "a_file_name",
+                "ProgramDatabaseFile": "a_file_name",
+                "RandomizedBaseAddress": "false",
+                "RegisterOutput": "true",
+                "SetChecksum": "true",
+                "ShowProgress": "NotSet",
+                "StackCommitSize": "a_string",
+                "StackReserveSize": "a_string",
+                "StripPrivateSymbols": "a_file_name",
+                "SubSystem": "Windows",
+                "SupportUnloadOfDelayLoadedDLL": "true",
+                "SuppressStartupBanner": "true",
+                "SwapRunFromCD": "true",
+                "SwapRunFromNET": "true",
+                "TargetMachine": "MachineARM",
+                "TerminalServerAware": "true",
+                "TurnOffAssemblyGeneration": "true",
+                "TypeLibraryFile": "a_file_name",
+                "TypeLibraryResourceID": "33",
+                "UACExecutionLevel": "HighestAvailable",
+                "UACUIAccess": "true",
+                "Version": "a_string",
+            },
+            "ResourceCompile": {
+                "AdditionalIncludeDirectories": "folder1;folder2;folder3",
+                "AdditionalOptions": "a_string",
+                "Culture": "0x03eb",
+                "IgnoreStandardIncludePath": "true",
+                "PreprocessorDefinitions": "d1;d2;d3",
+                "ResourceOutputFileName": "a_string",
+                "ShowProgress": "true",
+                "SuppressStartupBanner": "true",
+                "UndefinePreprocessorDefinitions": "d1;d2;d3",
+            },
+            "Midl": {
+                "AdditionalIncludeDirectories": "folder1;folder2;folder3",
+                "AdditionalOptions": "a_string",
+                "CPreprocessOptions": "a_string",
+                "DefaultCharType": "Unsigned",
+                "DllDataFileName": "a_file_name",
+                "EnableErrorChecks": "All",
+                "ErrorCheckAllocations": "true",
+                "ErrorCheckBounds": "true",
+                "ErrorCheckEnumRange": "true",
+                "ErrorCheckRefPointers": "true",
+                "ErrorCheckStubData": "true",
+                "GenerateStublessProxies": "true",
+                "GenerateTypeLibrary": "true",
+                "HeaderFileName": "a_file_name",
+                "IgnoreStandardIncludePath": "true",
+                "InterfaceIdentifierFileName": "a_file_name",
+                "MkTypLibCompatible": "true",
+                "OutputDirectory": "a_string",
+                "PreprocessorDefinitions": "d1;d2;d3",
+                "ProxyFileName": "a_file_name",
+                "RedirectOutputAndErrors": "a_file_name",
+                "StructMemberAlignment": "4",
+                "SuppressStartupBanner": "true",
+                "TargetEnvironment": "Win32",
+                "TypeLibraryName": "a_file_name",
+                "UndefinePreprocessorDefinitions": "d1;d2;d3",
+                "ValidateAllParameters": "true",
+                "WarnAsError": "true",
+                "WarningLevel": "4",
+            },
+            "Lib": {
+                "AdditionalDependencies": "file1;file2;file3",
+                "AdditionalLibraryDirectories": "folder1;folder2;folder3",
+                "AdditionalOptions": "a_string",
+                "ExportNamedFunctions": "d1;d2;d3",
+                "ForceSymbolReferences": "a_string",
+                "IgnoreAllDefaultLibraries": "true",
+                "IgnoreSpecificDefaultLibraries": "file1;file2;file3",
+                "ModuleDefinitionFile": "a_file_name",
+                "OutputFile": "a_file_name",
+                "SuppressStartupBanner": "true",
+                "UseUnicodeResponseFiles": "true",
+            },
+            "Manifest": {
+                "AdditionalManifestFiles": "file1;file2;file3",
+                "AdditionalOptions": "a_string",
+                "AssemblyIdentity": "a_string",
+                "ComponentFileName": "a_file_name",
+                "GenerateCatalogFiles": "true",
+                "InputResourceManifests": "a_string",
+                "OutputManifestFile": "a_file_name",
+                "RegistrarScriptFile": "a_file_name",
+                "ReplacementsFile": "a_file_name",
+                "SuppressStartupBanner": "true",
+                "TypeLibraryFile": "a_file_name",
+                "UpdateFileHashes": "true",
+                "UpdateFileHashesSearchPath": "a_file_name",
+                "VerboseOutput": "true",
+            },
+            "ManifestResourceCompile": {"ResourceOutputFileName": "my_name"},
+            "ProjectReference": {
+                "LinkLibraryDependencies": "true",
+                "UseLibraryDependencyInputs": "false",
+            },
+            "": {
+                "EmbedManifest": "true",
+                "GenerateManifest": "true",
+                "IgnoreImportLibrary": "true",
+                "LinkIncremental": "false",
+            },
+        }
+        self.maxDiff = 9999  # on failure display a long diff
+        actual_msbuild_settings = MSVSSettings.ConvertToMSBuildSettings(
+            msvs_settings, self.stderr
+        )
+        self.assertEqual(expected_msbuild_settings, actual_msbuild_settings)
+        self._ExpectedWarnings([])
+
+    def testConvertToMSBuildSettings_actual(self):
+        """Tests the conversion of an actual project.
+
+    A VS2008 project with most of the options defined was created through the
+    VS2008 IDE.  It was then converted to VS2010.  The tool settings found in
+    the .vcproj and .vcxproj files were converted to the two dictionaries
+    msvs_settings and expected_msbuild_settings.
+
+    Note that for many settings, the VS2010 converter adds macros like
+    %(AdditionalIncludeDirectories) to make sure than inherited values are
+    included.  Since the Gyp projects we generate do not use inheritance,
+    we removed these macros.  They were:
+        ClCompile:
+            AdditionalIncludeDirectories:  ';%(AdditionalIncludeDirectories)'
+            AdditionalOptions:  ' %(AdditionalOptions)'
+            AdditionalUsingDirectories:  ';%(AdditionalUsingDirectories)'
+            DisableSpecificWarnings: ';%(DisableSpecificWarnings)',
+            ForcedIncludeFiles:  ';%(ForcedIncludeFiles)',
+            ForcedUsingFiles:  ';%(ForcedUsingFiles)',
+            PreprocessorDefinitions:  ';%(PreprocessorDefinitions)',
+            UndefinePreprocessorDefinitions:
+                ';%(UndefinePreprocessorDefinitions)',
+        Link:
+            AdditionalDependencies:  ';%(AdditionalDependencies)',
+            AdditionalLibraryDirectories:  ';%(AdditionalLibraryDirectories)',
+            AdditionalManifestDependencies:
+                ';%(AdditionalManifestDependencies)',
+            AdditionalOptions:  ' %(AdditionalOptions)',
+            AddModuleNamesToAssembly:  ';%(AddModuleNamesToAssembly)',
+            AssemblyLinkResource:  ';%(AssemblyLinkResource)',
+            DelayLoadDLLs:  ';%(DelayLoadDLLs)',
+            EmbedManagedResourceFile:  ';%(EmbedManagedResourceFile)',
+            ForceSymbolReferences:  ';%(ForceSymbolReferences)',
+            IgnoreSpecificDefaultLibraries:
+                ';%(IgnoreSpecificDefaultLibraries)',
+        ResourceCompile:
+            AdditionalIncludeDirectories:  ';%(AdditionalIncludeDirectories)',
+            AdditionalOptions:  ' %(AdditionalOptions)',
+            PreprocessorDefinitions:  ';%(PreprocessorDefinitions)',
+        Manifest:
+            AdditionalManifestFiles:  ';%(AdditionalManifestFiles)',
+            AdditionalOptions:  ' %(AdditionalOptions)',
+            InputResourceManifests:  ';%(InputResourceManifests)',
+    """
+        msvs_settings = {
+            "VCCLCompilerTool": {
+                "AdditionalIncludeDirectories": "dir1",
+                "AdditionalOptions": "/more",
+                "AdditionalUsingDirectories": "test",
+                "AssemblerListingLocation": "$(IntDir)\\a",
+                "AssemblerOutput": "1",
+                "BasicRuntimeChecks": "3",
+                "BrowseInformation": "1",
+                "BrowseInformationFile": "$(IntDir)\\e",
+                "BufferSecurityCheck": "false",
+                "CallingConvention": "1",
+                "CompileAs": "1",
+                "DebugInformationFormat": "4",
+                "DefaultCharIsUnsigned": "true",
+                "Detect64BitPortabilityProblems": "true",
+                "DisableLanguageExtensions": "true",
+                "DisableSpecificWarnings": "abc",
+                "EnableEnhancedInstructionSet": "1",
+                "EnableFiberSafeOptimizations": "true",
+                "EnableFunctionLevelLinking": "true",
+                "EnableIntrinsicFunctions": "true",
+                "EnablePREfast": "true",
+                "ErrorReporting": "2",
+                "ExceptionHandling": "2",
+                "ExpandAttributedSource": "true",
+                "FavorSizeOrSpeed": "2",
+                "FloatingPointExceptions": "true",
+                "FloatingPointModel": "1",
+                "ForceConformanceInForLoopScope": "false",
+                "ForcedIncludeFiles": "def",
+                "ForcedUsingFiles": "ge",
+                "GeneratePreprocessedFile": "2",
+                "GenerateXMLDocumentationFiles": "true",
+                "IgnoreStandardIncludePath": "true",
+                "InlineFunctionExpansion": "1",
+                "KeepComments": "true",
+                "MinimalRebuild": "true",
+                "ObjectFile": "$(IntDir)\\b",
+                "OmitDefaultLibName": "true",
+                "OmitFramePointers": "true",
+                "OpenMP": "true",
+                "Optimization": "3",
+                "PrecompiledHeaderFile": "$(IntDir)\\$(TargetName).pche",
+                "PrecompiledHeaderThrough": "StdAfx.hd",
+                "PreprocessorDefinitions": "WIN32;_DEBUG;_CONSOLE",
+                "ProgramDataBaseFileName": "$(IntDir)\\vc90b.pdb",
+                "RuntimeLibrary": "3",
+                "RuntimeTypeInfo": "false",
+                "ShowIncludes": "true",
+                "SmallerTypeCheck": "true",
+                "StringPooling": "true",
+                "StructMemberAlignment": "3",
+                "SuppressStartupBanner": "false",
+                "TreatWChar_tAsBuiltInType": "false",
+                "UndefineAllPreprocessorDefinitions": "true",
+                "UndefinePreprocessorDefinitions": "wer",
+                "UseFullPaths": "true",
+                "UsePrecompiledHeader": "0",
+                "UseUnicodeResponseFiles": "false",
+                "WarnAsError": "true",
+                "WarningLevel": "3",
+                "WholeProgramOptimization": "true",
+                "XMLDocumentationFileName": "$(IntDir)\\c",
+            },
+            "VCLinkerTool": {
+                "AdditionalDependencies": "zx",
+                "AdditionalLibraryDirectories": "asd",
+                "AdditionalManifestDependencies": "s2",
+                "AdditionalOptions": "/mor2",
+                "AddModuleNamesToAssembly": "d1",
+                "AllowIsolation": "false",
+                "AssemblyDebug": "1",
+                "AssemblyLinkResource": "d5",
+                "BaseAddress": "23423",
+                "CLRImageType": "3",
+                "CLRThreadAttribute": "1",
+                "CLRUnmanagedCodeCheck": "true",
+                "DataExecutionPrevention": "0",
+                "DelayLoadDLLs": "d4",
+                "DelaySign": "true",
+                "Driver": "2",
+                "EmbedManagedResourceFile": "d2",
+                "EnableCOMDATFolding": "1",
+                "EnableUAC": "false",
+                "EntryPointSymbol": "f5",
+                "ErrorReporting": "2",
+                "FixedBaseAddress": "1",
+                "ForceSymbolReferences": "d3",
+                "FunctionOrder": "fssdfsd",
+                "GenerateDebugInformation": "true",
+                "GenerateManifest": "false",
+                "GenerateMapFile": "true",
+                "HeapCommitSize": "13",
+                "HeapReserveSize": "12",
+                "IgnoreAllDefaultLibraries": "true",
+                "IgnoreDefaultLibraryNames": "flob;flok",
+                "IgnoreEmbeddedIDL": "true",
+                "IgnoreImportLibrary": "true",
+                "ImportLibrary": "f4",
+                "KeyContainer": "f7",
+                "KeyFile": "f6",
+                "LargeAddressAware": "2",
+                "LinkIncremental": "0",
+                "LinkLibraryDependencies": "false",
+                "LinkTimeCodeGeneration": "1",
+                "ManifestFile": "$(IntDir)\\$(TargetFileName).2intermediate.manifest",
+                "MapExports": "true",
+                "MapFileName": "d5",
+                "MergedIDLBaseFileName": "f2",
+                "MergeSections": "f5",
+                "MidlCommandFile": "f1",
+                "ModuleDefinitionFile": "sdsd",
+                "OptimizeForWindows98": "2",
+                "OptimizeReferences": "2",
+                "OutputFile": "$(OutDir)\\$(ProjectName)2.exe",
+                "PerUserRedirection": "true",
+                "Profile": "true",
+                "ProfileGuidedDatabase": "$(TargetDir)$(TargetName).pgdd",
+                "ProgramDatabaseFile": "Flob.pdb",
+                "RandomizedBaseAddress": "1",
+                "RegisterOutput": "true",
+                "ResourceOnlyDLL": "true",
+                "SetChecksum": "false",
+                "ShowProgress": "1",
+                "StackCommitSize": "15",
+                "StackReserveSize": "14",
+                "StripPrivateSymbols": "d3",
+                "SubSystem": "1",
+                "SupportUnloadOfDelayLoadedDLL": "true",
+                "SuppressStartupBanner": "false",
+                "SwapRunFromCD": "true",
+                "SwapRunFromNet": "true",
+                "TargetMachine": "1",
+                "TerminalServerAware": "1",
+                "TurnOffAssemblyGeneration": "true",
+                "TypeLibraryFile": "f3",
+                "TypeLibraryResourceID": "12",
+                "UACExecutionLevel": "2",
+                "UACUIAccess": "true",
+                "UseLibraryDependencyInputs": "true",
+                "UseUnicodeResponseFiles": "false",
+                "Version": "333",
+            },
+            "VCResourceCompilerTool": {
+                "AdditionalIncludeDirectories": "f3",
+                "AdditionalOptions": "/more3",
+                "Culture": "3084",
+                "IgnoreStandardIncludePath": "true",
+                "PreprocessorDefinitions": "_UNICODE;UNICODE2",
+                "ResourceOutputFileName": "$(IntDir)/$(InputName)3.res",
+                "ShowProgress": "true",
+            },
+            "VCManifestTool": {
+                "AdditionalManifestFiles": "sfsdfsd",
+                "AdditionalOptions": "afdsdafsd",
+                "AssemblyIdentity": "sddfdsadfsa",
+                "ComponentFileName": "fsdfds",
+                "DependencyInformationFile": "$(IntDir)\\mt.depdfd",
+                "EmbedManifest": "false",
+                "GenerateCatalogFiles": "true",
+                "InputResourceManifests": "asfsfdafs",
+                "ManifestResourceFile":
+                    "$(IntDir)\\$(TargetFileName).embed.manifest.resfdsf",
+                "OutputManifestFile": "$(TargetPath).manifestdfs",
+                "RegistrarScriptFile": "sdfsfd",
+                "ReplacementsFile": "sdffsd",
+                "SuppressStartupBanner": "false",
+                "TypeLibraryFile": "sfsd",
+                "UpdateFileHashes": "true",
+                "UpdateFileHashesSearchPath": "sfsd",
+                "UseFAT32Workaround": "true",
+                "UseUnicodeResponseFiles": "false",
+                "VerboseOutput": "true",
+            },
+        }
+        expected_msbuild_settings = {
+            "ClCompile": {
+                "AdditionalIncludeDirectories": "dir1",
+                "AdditionalOptions": "/more /J",
+                "AdditionalUsingDirectories": "test",
+                "AssemblerListingLocation": "$(IntDir)a",
+                "AssemblerOutput": "AssemblyCode",
+                "BasicRuntimeChecks": "EnableFastChecks",
+                "BrowseInformation": "true",
+                "BrowseInformationFile": "$(IntDir)e",
+                "BufferSecurityCheck": "false",
+                "CallingConvention": "FastCall",
+                "CompileAs": "CompileAsC",
+                "DebugInformationFormat": "EditAndContinue",
+                "DisableLanguageExtensions": "true",
+                "DisableSpecificWarnings": "abc",
+                "EnableEnhancedInstructionSet": "StreamingSIMDExtensions",
+                "EnableFiberSafeOptimizations": "true",
+                "EnablePREfast": "true",
+                "ErrorReporting": "Queue",
+                "ExceptionHandling": "Async",
+                "ExpandAttributedSource": "true",
+                "FavorSizeOrSpeed": "Size",
+                "FloatingPointExceptions": "true",
+                "FloatingPointModel": "Strict",
+                "ForceConformanceInForLoopScope": "false",
+                "ForcedIncludeFiles": "def",
+                "ForcedUsingFiles": "ge",
+                "FunctionLevelLinking": "true",
+                "GenerateXMLDocumentationFiles": "true",
+                "IgnoreStandardIncludePath": "true",
+                "InlineFunctionExpansion": "OnlyExplicitInline",
+                "IntrinsicFunctions": "true",
+                "MinimalRebuild": "true",
+                "ObjectFileName": "$(IntDir)b",
+                "OmitDefaultLibName": "true",
+                "OmitFramePointers": "true",
+                "OpenMPSupport": "true",
+                "Optimization": "Full",
+                "PrecompiledHeader": "NotUsing",  # Actual conversion gives ''
+                "PrecompiledHeaderFile": "StdAfx.hd",
+                "PrecompiledHeaderOutputFile": "$(IntDir)$(TargetName).pche",
+                "PreprocessKeepComments": "true",
+                "PreprocessorDefinitions": "WIN32;_DEBUG;_CONSOLE",
+                "PreprocessSuppressLineNumbers": "true",
+                "PreprocessToFile": "true",
+                "ProgramDataBaseFileName": "$(IntDir)vc90b.pdb",
+                "RuntimeLibrary": "MultiThreadedDebugDLL",
+                "RuntimeTypeInfo": "false",
+                "ShowIncludes": "true",
+                "SmallerTypeCheck": "true",
+                "StringPooling": "true",
+                "StructMemberAlignment": "4Bytes",
+                "SuppressStartupBanner": "false",
+                "TreatWarningAsError": "true",
+                "TreatWChar_tAsBuiltInType": "false",
+                "UndefineAllPreprocessorDefinitions": "true",
+                "UndefinePreprocessorDefinitions": "wer",
+                "UseFullPaths": "true",
+                "WarningLevel": "Level3",
+                "WholeProgramOptimization": "true",
+                "XMLDocumentationFileName": "$(IntDir)c",
+            },
+            "Link": {
+                "AdditionalDependencies": "zx",
+                "AdditionalLibraryDirectories": "asd",
+                "AdditionalManifestDependencies": "s2",
+                "AdditionalOptions": "/mor2",
+                "AddModuleNamesToAssembly": "d1",
+                "AllowIsolation": "false",
+                "AssemblyDebug": "true",
+                "AssemblyLinkResource": "d5",
+                "BaseAddress": "23423",
+                "CLRImageType": "ForceSafeILImage",
+                "CLRThreadAttribute": "MTAThreadingAttribute",
+                "CLRUnmanagedCodeCheck": "true",
+                "DataExecutionPrevention": "",
+                "DelayLoadDLLs": "d4",
+                "DelaySign": "true",
+                "Driver": "UpOnly",
+                "EmbedManagedResourceFile": "d2",
+                "EnableCOMDATFolding": "false",
+                "EnableUAC": "false",
+                "EntryPointSymbol": "f5",
+                "FixedBaseAddress": "false",
+                "ForceSymbolReferences": "d3",
+                "FunctionOrder": "fssdfsd",
+                "GenerateDebugInformation": "true",
+                "GenerateMapFile": "true",
+                "HeapCommitSize": "13",
+                "HeapReserveSize": "12",
+                "IgnoreAllDefaultLibraries": "true",
+                "IgnoreEmbeddedIDL": "true",
+                "IgnoreSpecificDefaultLibraries": "flob;flok",
+                "ImportLibrary": "f4",
+                "KeyContainer": "f7",
+                "KeyFile": "f6",
+                "LargeAddressAware": "true",
+                "LinkErrorReporting": "QueueForNextLogin",
+                "LinkTimeCodeGeneration": "UseLinkTimeCodeGeneration",
+                "ManifestFile": "$(IntDir)$(TargetFileName).2intermediate.manifest",
+                "MapExports": "true",
+                "MapFileName": "d5",
+                "MergedIDLBaseFileName": "f2",
+                "MergeSections": "f5",
+                "MidlCommandFile": "f1",
+                "ModuleDefinitionFile": "sdsd",
+                "NoEntryPoint": "true",
+                "OptimizeReferences": "true",
+                "OutputFile": "$(OutDir)$(ProjectName)2.exe",
+                "PerUserRedirection": "true",
+                "Profile": "true",
+                "ProfileGuidedDatabase": "$(TargetDir)$(TargetName).pgdd",
+                "ProgramDatabaseFile": "Flob.pdb",
+                "RandomizedBaseAddress": "false",
+                "RegisterOutput": "true",
+                "SetChecksum": "false",
+                "ShowProgress": "LinkVerbose",
+                "StackCommitSize": "15",
+                "StackReserveSize": "14",
+                "StripPrivateSymbols": "d3",
+                "SubSystem": "Console",
+                "SupportUnloadOfDelayLoadedDLL": "true",
+                "SuppressStartupBanner": "false",
+                "SwapRunFromCD": "true",
+                "SwapRunFromNET": "true",
+                "TargetMachine": "MachineX86",
+                "TerminalServerAware": "false",
+                "TurnOffAssemblyGeneration": "true",
+                "TypeLibraryFile": "f3",
+                "TypeLibraryResourceID": "12",
+                "UACExecutionLevel": "RequireAdministrator",
+                "UACUIAccess": "true",
+                "Version": "333",
+            },
+            "ResourceCompile": {
+                "AdditionalIncludeDirectories": "f3",
+                "AdditionalOptions": "/more3",
+                "Culture": "0x0c0c",
+                "IgnoreStandardIncludePath": "true",
+                "PreprocessorDefinitions": "_UNICODE;UNICODE2",
+                "ResourceOutputFileName": "$(IntDir)%(Filename)3.res",
+                "ShowProgress": "true",
+            },
+            "Manifest": {
+                "AdditionalManifestFiles": "sfsdfsd",
+                "AdditionalOptions": "afdsdafsd",
+                "AssemblyIdentity": "sddfdsadfsa",
+                "ComponentFileName": "fsdfds",
+                "GenerateCatalogFiles": "true",
+                "InputResourceManifests": "asfsfdafs",
+                "OutputManifestFile": "$(TargetPath).manifestdfs",
+                "RegistrarScriptFile": "sdfsfd",
+                "ReplacementsFile": "sdffsd",
+                "SuppressStartupBanner": "false",
+                "TypeLibraryFile": "sfsd",
+                "UpdateFileHashes": "true",
+                "UpdateFileHashesSearchPath": "sfsd",
+                "VerboseOutput": "true",
+            },
+            "ProjectReference": {
+                "LinkLibraryDependencies": "false",
+                "UseLibraryDependencyInputs": "true",
+            },
+            "": {
+                "EmbedManifest": "false",
+                "GenerateManifest": "false",
+                "IgnoreImportLibrary": "true",
+                "LinkIncremental": "",
+            },
+            "ManifestResourceCompile": {
+                "ResourceOutputFileName":
+                    "$(IntDir)$(TargetFileName).embed.manifest.resfdsf"
+            },
+        }
+        self.maxDiff = 9999  # on failure display a long diff
+        actual_msbuild_settings = MSVSSettings.ConvertToMSBuildSettings(
+            msvs_settings, self.stderr
+        )
+        self.assertEqual(expected_msbuild_settings, actual_msbuild_settings)
+        self._ExpectedWarnings([])
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/MSVSToolFile.py b/node_modules/node-gyp/gyp/pylib/gyp/MSVSToolFile.py
new file mode 100644
index 0000000..2e5c811
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/MSVSToolFile.py
@@ -0,0 +1,59 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Visual Studio project reader/writer."""
+
+import gyp.easy_xml as easy_xml
+
+
+class Writer:
+    """Visual Studio XML tool file writer."""
+
+    def __init__(self, tool_file_path, name):
+        """Initializes the tool file.
+
+    Args:
+      tool_file_path: Path to the tool file.
+      name: Name of the tool file.
+    """
+        self.tool_file_path = tool_file_path
+        self.name = name
+        self.rules_section = ["Rules"]
+
+    def AddCustomBuildRule(
+        self, name, cmd, description, additional_dependencies, outputs, extensions
+    ):
+        """Adds a rule to the tool file.
+
+    Args:
+      name: Name of the rule.
+      description: Description of the rule.
+      cmd: Command line of the rule.
+      additional_dependencies: other files which may trigger the rule.
+      outputs: outputs of the rule.
+      extensions: extensions handled by the rule.
+    """
+        rule = [
+            "CustomBuildRule",
+            {
+                "Name": name,
+                "ExecutionDescription": description,
+                "CommandLine": cmd,
+                "Outputs": ";".join(outputs),
+                "FileExtensions": ";".join(extensions),
+                "AdditionalDependencies": ";".join(additional_dependencies),
+            },
+        ]
+        self.rules_section.append(rule)
+
+    def WriteIfChanged(self):
+        """Writes the tool file."""
+        content = [
+            "VisualStudioToolFile",
+            {"Version": "8.00", "Name": self.name},
+            self.rules_section,
+        ]
+        easy_xml.WriteXmlIfChanged(
+            content, self.tool_file_path, encoding="Windows-1252"
+        )
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/MSVSUserFile.py b/node_modules/node-gyp/gyp/pylib/gyp/MSVSUserFile.py
new file mode 100644
index 0000000..e580c00
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/MSVSUserFile.py
@@ -0,0 +1,153 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Visual Studio user preferences file writer."""
+
+import os
+import re
+import socket  # for gethostname
+
+import gyp.easy_xml as easy_xml
+
+
+# ------------------------------------------------------------------------------
+
+
+def _FindCommandInPath(command):
+    """If there are no slashes in the command given, this function
+     searches the PATH env to find the given command, and converts it
+     to an absolute path.  We have to do this because MSVS is looking
+     for an actual file to launch a debugger on, not just a command
+     line.  Note that this happens at GYP time, so anything needing to
+     be built needs to have a full path."""
+    if "/" in command or "\\" in command:
+        # If the command already has path elements (either relative or
+        # absolute), then assume it is constructed properly.
+        return command
+    else:
+        # Search through the path list and find an existing file that
+        # we can access.
+        paths = os.environ.get("PATH", "").split(os.pathsep)
+        for path in paths:
+            item = os.path.join(path, command)
+            if os.path.isfile(item) and os.access(item, os.X_OK):
+                return item
+    return command
+
+
+def _QuoteWin32CommandLineArgs(args):
+    new_args = []
+    for arg in args:
+        # Replace all double-quotes with double-double-quotes to escape
+        # them for cmd shell, and then quote the whole thing if there
+        # are any.
+        if arg.find('"') != -1:
+            arg = '""'.join(arg.split('"'))
+            arg = '"%s"' % arg
+
+        # Otherwise, if there are any spaces, quote the whole arg.
+        elif re.search(r"[ \t\n]", arg):
+            arg = '"%s"' % arg
+        new_args.append(arg)
+    return new_args
+
+
+class Writer:
+    """Visual Studio XML user user file writer."""
+
+    def __init__(self, user_file_path, version, name):
+        """Initializes the user file.
+
+    Args:
+      user_file_path: Path to the user file.
+      version: Version info.
+      name: Name of the user file.
+    """
+        self.user_file_path = user_file_path
+        self.version = version
+        self.name = name
+        self.configurations = {}
+
+    def AddConfig(self, name):
+        """Adds a configuration to the project.
+
+    Args:
+      name: Configuration name.
+    """
+        self.configurations[name] = ["Configuration", {"Name": name}]
+
+    def AddDebugSettings(
+        self, config_name, command, environment={}, working_directory=""
+    ):
+        """Adds a DebugSettings node to the user file for a particular config.
+
+    Args:
+      command: command line to run.  First element in the list is the
+        executable.  All elements of the command will be quoted if
+        necessary.
+      working_directory: other files which may trigger the rule. (optional)
+    """
+        command = _QuoteWin32CommandLineArgs(command)
+
+        abs_command = _FindCommandInPath(command[0])
+
+        if environment and isinstance(environment, dict):
+            env_list = [f'{key}="{val}"' for (key, val) in environment.items()]
+            environment = " ".join(env_list)
+        else:
+            environment = ""
+
+        n_cmd = [
+            "DebugSettings",
+            {
+                "Command": abs_command,
+                "WorkingDirectory": working_directory,
+                "CommandArguments": " ".join(command[1:]),
+                "RemoteMachine": socket.gethostname(),
+                "Environment": environment,
+                "EnvironmentMerge": "true",
+                # Currently these are all "dummy" values that we're just setting
+                # in the default manner that MSVS does it.  We could use some of
+                # these to add additional capabilities, I suppose, but they might
+                # not have parity with other platforms then.
+                "Attach": "false",
+                "DebuggerType": "3",  # 'auto' debugger
+                "Remote": "1",
+                "RemoteCommand": "",
+                "HttpUrl": "",
+                "PDBPath": "",
+                "SQLDebugging": "",
+                "DebuggerFlavor": "0",
+                "MPIRunCommand": "",
+                "MPIRunArguments": "",
+                "MPIRunWorkingDirectory": "",
+                "ApplicationCommand": "",
+                "ApplicationArguments": "",
+                "ShimCommand": "",
+                "MPIAcceptMode": "",
+                "MPIAcceptFilter": "",
+            },
+        ]
+
+        # Find the config, and add it if it doesn't exist.
+        if config_name not in self.configurations:
+            self.AddConfig(config_name)
+
+        # Add the DebugSettings onto the appropriate config.
+        self.configurations[config_name].append(n_cmd)
+
+    def WriteIfChanged(self):
+        """Writes the user file."""
+        configs = ["Configurations"]
+        for config, spec in sorted(self.configurations.items()):
+            configs.append(spec)
+
+        content = [
+            "VisualStudioUserFile",
+            {"Version": self.version.ProjectVersion(), "Name": self.name},
+            configs,
+        ]
+        easy_xml.WriteXmlIfChanged(
+            content, self.user_file_path, encoding="Windows-1252"
+        )
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/MSVSUtil.py b/node_modules/node-gyp/gyp/pylib/gyp/MSVSUtil.py
new file mode 100644
index 0000000..36bb782
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/MSVSUtil.py
@@ -0,0 +1,271 @@
+# Copyright (c) 2013 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Utility functions shared amongst the Windows generators."""
+
+import copy
+import os
+
+
+# A dictionary mapping supported target types to extensions.
+TARGET_TYPE_EXT = {
+    "executable": "exe",
+    "loadable_module": "dll",
+    "shared_library": "dll",
+    "static_library": "lib",
+    "windows_driver": "sys",
+}
+
+
+def _GetLargePdbShimCcPath():
+    """Returns the path of the large_pdb_shim.cc file."""
+    this_dir = os.path.abspath(os.path.dirname(__file__))
+    src_dir = os.path.abspath(os.path.join(this_dir, "..", ".."))
+    win_data_dir = os.path.join(src_dir, "data", "win")
+    large_pdb_shim_cc = os.path.join(win_data_dir, "large-pdb-shim.cc")
+    return large_pdb_shim_cc
+
+
+def _DeepCopySomeKeys(in_dict, keys):
+    """Performs a partial deep-copy on |in_dict|, only copying the keys in |keys|.
+
+  Arguments:
+    in_dict: The dictionary to copy.
+    keys: The keys to be copied. If a key is in this list and doesn't exist in
+        |in_dict| this is not an error.
+  Returns:
+    The partially deep-copied dictionary.
+  """
+    d = {}
+    for key in keys:
+        if key not in in_dict:
+            continue
+        d[key] = copy.deepcopy(in_dict[key])
+    return d
+
+
+def _SuffixName(name, suffix):
+    """Add a suffix to the end of a target.
+
+  Arguments:
+    name: name of the target (foo#target)
+    suffix: the suffix to be added
+  Returns:
+    Target name with suffix added (foo_suffix#target)
+  """
+    parts = name.rsplit("#", 1)
+    parts[0] = f"{parts[0]}_{suffix}"
+    return "#".join(parts)
+
+
+def _ShardName(name, number):
+    """Add a shard number to the end of a target.
+
+  Arguments:
+    name: name of the target (foo#target)
+    number: shard number
+  Returns:
+    Target name with shard added (foo_1#target)
+  """
+    return _SuffixName(name, str(number))
+
+
+def ShardTargets(target_list, target_dicts):
+    """Shard some targets apart to work around the linkers limits.
+
+  Arguments:
+    target_list: List of target pairs: 'base/base.gyp:base'.
+    target_dicts: Dict of target properties keyed on target pair.
+  Returns:
+    Tuple of the new sharded versions of the inputs.
+  """
+    # Gather the targets to shard, and how many pieces.
+    targets_to_shard = {}
+    for t in target_dicts:
+        shards = int(target_dicts[t].get("msvs_shard", 0))
+        if shards:
+            targets_to_shard[t] = shards
+    # Shard target_list.
+    new_target_list = []
+    for t in target_list:
+        if t in targets_to_shard:
+            for i in range(targets_to_shard[t]):
+                new_target_list.append(_ShardName(t, i))
+        else:
+            new_target_list.append(t)
+    # Shard target_dict.
+    new_target_dicts = {}
+    for t in target_dicts:
+        if t in targets_to_shard:
+            for i in range(targets_to_shard[t]):
+                name = _ShardName(t, i)
+                new_target_dicts[name] = copy.copy(target_dicts[t])
+                new_target_dicts[name]["target_name"] = _ShardName(
+                    new_target_dicts[name]["target_name"], i
+                )
+                sources = new_target_dicts[name].get("sources", [])
+                new_sources = []
+                for pos in range(i, len(sources), targets_to_shard[t]):
+                    new_sources.append(sources[pos])
+                new_target_dicts[name]["sources"] = new_sources
+        else:
+            new_target_dicts[t] = target_dicts[t]
+    # Shard dependencies.
+    for t in sorted(new_target_dicts):
+        for deptype in ("dependencies", "dependencies_original"):
+            dependencies = copy.copy(new_target_dicts[t].get(deptype, []))
+            new_dependencies = []
+            for d in dependencies:
+                if d in targets_to_shard:
+                    for i in range(targets_to_shard[d]):
+                        new_dependencies.append(_ShardName(d, i))
+                else:
+                    new_dependencies.append(d)
+            new_target_dicts[t][deptype] = new_dependencies
+
+    return (new_target_list, new_target_dicts)
+
+
+def _GetPdbPath(target_dict, config_name, vars):
+    """Returns the path to the PDB file that will be generated by a given
+  configuration.
+
+  The lookup proceeds as follows:
+    - Look for an explicit path in the VCLinkerTool configuration block.
+    - Look for an 'msvs_large_pdb_path' variable.
+    - Use '<(PRODUCT_DIR)/<(product_name).(exe|dll).pdb' if 'product_name' is
+      specified.
+    - Use '<(PRODUCT_DIR)/<(target_name).(exe|dll).pdb'.
+
+  Arguments:
+    target_dict: The target dictionary to be searched.
+    config_name: The name of the configuration of interest.
+    vars: A dictionary of common GYP variables with generator-specific values.
+  Returns:
+    The path of the corresponding PDB file.
+  """
+    config = target_dict["configurations"][config_name]
+    msvs = config.setdefault("msvs_settings", {})
+
+    linker = msvs.get("VCLinkerTool", {})
+
+    pdb_path = linker.get("ProgramDatabaseFile")
+    if pdb_path:
+        return pdb_path
+
+    variables = target_dict.get("variables", {})
+    pdb_path = variables.get("msvs_large_pdb_path", None)
+    if pdb_path:
+        return pdb_path
+
+    pdb_base = target_dict.get("product_name", target_dict["target_name"])
+    pdb_base = "{}.{}.pdb".format(pdb_base, TARGET_TYPE_EXT[target_dict["type"]])
+    pdb_path = vars["PRODUCT_DIR"] + "/" + pdb_base
+
+    return pdb_path
+
+
+def InsertLargePdbShims(target_list, target_dicts, vars):
+    """Insert a shim target that forces the linker to use 4KB pagesize PDBs.
+
+  This is a workaround for targets with PDBs greater than 1GB in size, the
+  limit for the 1KB pagesize PDBs created by the linker by default.
+
+  Arguments:
+    target_list: List of target pairs: 'base/base.gyp:base'.
+    target_dicts: Dict of target properties keyed on target pair.
+    vars: A dictionary of common GYP variables with generator-specific values.
+  Returns:
+    Tuple of the shimmed version of the inputs.
+  """
+    # Determine which targets need shimming.
+    targets_to_shim = []
+    for t in target_dicts:
+        target_dict = target_dicts[t]
+
+        # We only want to shim targets that have msvs_large_pdb enabled.
+        if not int(target_dict.get("msvs_large_pdb", 0)):
+            continue
+        # This is intended for executable, shared_library and loadable_module
+        # targets where every configuration is set up to produce a PDB output.
+        # If any of these conditions is not true then the shim logic will fail
+        # below.
+        targets_to_shim.append(t)
+
+    large_pdb_shim_cc = _GetLargePdbShimCcPath()
+
+    for t in targets_to_shim:
+        target_dict = target_dicts[t]
+        target_name = target_dict.get("target_name")
+
+        base_dict = _DeepCopySomeKeys(
+            target_dict, ["configurations", "default_configuration", "toolset"]
+        )
+
+        # This is the dict for copying the source file (part of the GYP tree)
+        # to the intermediate directory of the project. This is necessary because
+        # we can't always build a relative path to the shim source file (on Windows
+        # GYP and the project may be on different drives), and Ninja hates absolute
+        # paths (it ends up generating the .obj and .obj.d alongside the source
+        # file, polluting GYPs tree).
+        copy_suffix = "large_pdb_copy"
+        copy_target_name = target_name + "_" + copy_suffix
+        full_copy_target_name = _SuffixName(t, copy_suffix)
+        shim_cc_basename = os.path.basename(large_pdb_shim_cc)
+        shim_cc_dir = vars["SHARED_INTERMEDIATE_DIR"] + "/" + copy_target_name
+        shim_cc_path = shim_cc_dir + "/" + shim_cc_basename
+        copy_dict = copy.deepcopy(base_dict)
+        copy_dict["target_name"] = copy_target_name
+        copy_dict["type"] = "none"
+        copy_dict["sources"] = [large_pdb_shim_cc]
+        copy_dict["copies"] = [
+            {"destination": shim_cc_dir, "files": [large_pdb_shim_cc]}
+        ]
+
+        # This is the dict for the PDB generating shim target. It depends on the
+        # copy target.
+        shim_suffix = "large_pdb_shim"
+        shim_target_name = target_name + "_" + shim_suffix
+        full_shim_target_name = _SuffixName(t, shim_suffix)
+        shim_dict = copy.deepcopy(base_dict)
+        shim_dict["target_name"] = shim_target_name
+        shim_dict["type"] = "static_library"
+        shim_dict["sources"] = [shim_cc_path]
+        shim_dict["dependencies"] = [full_copy_target_name]
+
+        # Set up the shim to output its PDB to the same location as the final linker
+        # target.
+        for config_name, config in shim_dict.get("configurations").items():
+            pdb_path = _GetPdbPath(target_dict, config_name, vars)
+
+            # A few keys that we don't want to propagate.
+            for key in ["msvs_precompiled_header", "msvs_precompiled_source", "test"]:
+                config.pop(key, None)
+
+            msvs = config.setdefault("msvs_settings", {})
+
+            # Update the compiler directives in the shim target.
+            compiler = msvs.setdefault("VCCLCompilerTool", {})
+            compiler["DebugInformationFormat"] = "3"
+            compiler["ProgramDataBaseFileName"] = pdb_path
+
+            # Set the explicit PDB path in the appropriate configuration of the
+            # original target.
+            config = target_dict["configurations"][config_name]
+            msvs = config.setdefault("msvs_settings", {})
+            linker = msvs.setdefault("VCLinkerTool", {})
+            linker["GenerateDebugInformation"] = "true"
+            linker["ProgramDatabaseFile"] = pdb_path
+
+        # Add the new targets. They must go to the beginning of the list so that
+        # the dependency generation works as expected in ninja.
+        target_list.insert(0, full_copy_target_name)
+        target_list.insert(0, full_shim_target_name)
+        target_dicts[full_copy_target_name] = copy_dict
+        target_dicts[full_shim_target_name] = shim_dict
+
+        # Update the original target to depend on the shim target.
+        target_dict.setdefault("dependencies", []).append(full_shim_target_name)
+
+    return (target_list, target_dicts)
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/MSVSVersion.py b/node_modules/node-gyp/gyp/pylib/gyp/MSVSVersion.py
new file mode 100644
index 0000000..8d7f21e
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/MSVSVersion.py
@@ -0,0 +1,574 @@
+# Copyright (c) 2013 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Handle version information related to Visual Stuio."""
+
+import errno
+import os
+import re
+import subprocess
+import sys
+import glob
+
+
+def JoinPath(*args):
+    return os.path.normpath(os.path.join(*args))
+
+
+class VisualStudioVersion:
+    """Information regarding a version of Visual Studio."""
+
+    def __init__(
+        self,
+        short_name,
+        description,
+        solution_version,
+        project_version,
+        flat_sln,
+        uses_vcxproj,
+        path,
+        sdk_based,
+        default_toolset=None,
+        compatible_sdks=None,
+    ):
+        self.short_name = short_name
+        self.description = description
+        self.solution_version = solution_version
+        self.project_version = project_version
+        self.flat_sln = flat_sln
+        self.uses_vcxproj = uses_vcxproj
+        self.path = path
+        self.sdk_based = sdk_based
+        self.default_toolset = default_toolset
+        compatible_sdks = compatible_sdks or []
+        compatible_sdks.sort(key=lambda v: float(v.replace("v", "")), reverse=True)
+        self.compatible_sdks = compatible_sdks
+
+    def ShortName(self):
+        return self.short_name
+
+    def Description(self):
+        """Get the full description of the version."""
+        return self.description
+
+    def SolutionVersion(self):
+        """Get the version number of the sln files."""
+        return self.solution_version
+
+    def ProjectVersion(self):
+        """Get the version number of the vcproj or vcxproj files."""
+        return self.project_version
+
+    def FlatSolution(self):
+        return self.flat_sln
+
+    def UsesVcxproj(self):
+        """Returns true if this version uses a vcxproj file."""
+        return self.uses_vcxproj
+
+    def ProjectExtension(self):
+        """Returns the file extension for the project."""
+        return self.uses_vcxproj and ".vcxproj" or ".vcproj"
+
+    def Path(self):
+        """Returns the path to Visual Studio installation."""
+        return self.path
+
+    def ToolPath(self, tool):
+        """Returns the path to a given compiler tool. """
+        return os.path.normpath(os.path.join(self.path, "VC/bin", tool))
+
+    def DefaultToolset(self):
+        """Returns the msbuild toolset version that will be used in the absence
+    of a user override."""
+        return self.default_toolset
+
+    def _SetupScriptInternal(self, target_arch):
+        """Returns a command (with arguments) to be used to set up the
+    environment."""
+        assert target_arch in ("x86", "x64"), "target_arch not supported"
+        # If WindowsSDKDir is set and SetEnv.Cmd exists then we are using the
+        # depot_tools build tools and should run SetEnv.Cmd to set up the
+        # environment. The check for WindowsSDKDir alone is not sufficient because
+        # this is set by running vcvarsall.bat.
+        sdk_dir = os.environ.get("WindowsSDKDir", "")
+        setup_path = JoinPath(sdk_dir, "Bin", "SetEnv.Cmd")
+        if self.sdk_based and sdk_dir and os.path.exists(setup_path):
+            return [setup_path, "/" + target_arch]
+
+        is_host_arch_x64 = (
+            os.environ.get("PROCESSOR_ARCHITECTURE") == "AMD64"
+            or os.environ.get("PROCESSOR_ARCHITEW6432") == "AMD64"
+        )
+
+        # For VS2017 (and newer) it's fairly easy
+        if self.short_name >= "2017":
+            script_path = JoinPath(
+                self.path, "VC", "Auxiliary", "Build", "vcvarsall.bat"
+            )
+
+            # Always use a native executable, cross-compiling if necessary.
+            host_arch = "amd64" if is_host_arch_x64 else "x86"
+            msvc_target_arch = "amd64" if target_arch == "x64" else "x86"
+            arg = host_arch
+            if host_arch != msvc_target_arch:
+                arg += "_" + msvc_target_arch
+
+            return [script_path, arg]
+
+        # We try to find the best version of the env setup batch.
+        vcvarsall = JoinPath(self.path, "VC", "vcvarsall.bat")
+        if target_arch == "x86":
+            if (
+                self.short_name >= "2013"
+                and self.short_name[-1] != "e"
+                and is_host_arch_x64
+            ):
+                # VS2013 and later, non-Express have a x64-x86 cross that we want
+                # to prefer.
+                return [vcvarsall, "amd64_x86"]
+            else:
+                # Otherwise, the standard x86 compiler. We don't use VC/vcvarsall.bat
+                # for x86 because vcvarsall calls vcvars32, which it can only find if
+                # VS??COMNTOOLS is set, which isn't guaranteed.
+                return [JoinPath(self.path, "Common7", "Tools", "vsvars32.bat")]
+        elif target_arch == "x64":
+            arg = "x86_amd64"
+            # Use the 64-on-64 compiler if we're not using an express edition and
+            # we're running on a 64bit OS.
+            if self.short_name[-1] != "e" and is_host_arch_x64:
+                arg = "amd64"
+            return [vcvarsall, arg]
+
+    def SetupScript(self, target_arch):
+        script_data = self._SetupScriptInternal(target_arch)
+        script_path = script_data[0]
+        if not os.path.exists(script_path):
+            raise Exception(
+                "%s is missing - make sure VC++ tools are installed." % script_path
+            )
+        return script_data
+
+
+def _RegistryQueryBase(sysdir, key, value):
+    """Use reg.exe to read a particular key.
+
+  While ideally we might use the win32 module, we would like gyp to be
+  python neutral, so for instance cygwin python lacks this module.
+
+  Arguments:
+    sysdir: The system subdirectory to attempt to launch reg.exe from.
+    key: The registry key to read from.
+    value: The particular value to read.
+  Return:
+    stdout from reg.exe, or None for failure.
+  """
+    # Skip if not on Windows or Python Win32 setup issue
+    if sys.platform not in ("win32", "cygwin"):
+        return None
+    # Setup params to pass to and attempt to launch reg.exe
+    cmd = [os.path.join(os.environ.get("WINDIR", ""), sysdir, "reg.exe"), "query", key]
+    if value:
+        cmd.extend(["/v", value])
+    p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    # Obtain the stdout from reg.exe, reading to the end so p.returncode is valid
+    # Note that the error text may be in [1] in some cases
+    text = p.communicate()[0].decode("utf-8")
+    # Check return code from reg.exe; officially 0==success and 1==error
+    if p.returncode:
+        return None
+    return text
+
+
+def _RegistryQuery(key, value=None):
+    r"""Use reg.exe to read a particular key through _RegistryQueryBase.
+
+  First tries to launch from %WinDir%\Sysnative to avoid WoW64 redirection. If
+  that fails, it falls back to System32.  Sysnative is available on Vista and
+  up and available on Windows Server 2003 and XP through KB patch 942589. Note
+  that Sysnative will always fail if using 64-bit python due to it being a
+  virtual directory and System32 will work correctly in the first place.
+
+  KB 942589 - http://support.microsoft.com/kb/942589/en-us.
+
+  Arguments:
+    key: The registry key.
+    value: The particular registry value to read (optional).
+  Return:
+    stdout from reg.exe, or None for failure.
+  """
+    text = None
+    try:
+        text = _RegistryQueryBase("Sysnative", key, value)
+    except OSError as e:
+        if e.errno == errno.ENOENT:
+            text = _RegistryQueryBase("System32", key, value)
+        else:
+            raise
+    return text
+
+
+def _RegistryGetValueUsingWinReg(key, value):
+    """Use the _winreg module to obtain the value of a registry key.
+
+  Args:
+    key: The registry key.
+    value: The particular registry value to read.
+  Return:
+    contents of the registry key's value, or None on failure.  Throws
+    ImportError if winreg is unavailable.
+  """
+    from winreg import HKEY_LOCAL_MACHINE, OpenKey, QueryValueEx
+    try:
+        root, subkey = key.split("\\", 1)
+        assert root == "HKLM"  # Only need HKLM for now.
+        with OpenKey(HKEY_LOCAL_MACHINE, subkey) as hkey:
+            return QueryValueEx(hkey, value)[0]
+    except OSError:
+        return None
+
+
+def _RegistryGetValue(key, value):
+    """Use _winreg or reg.exe to obtain the value of a registry key.
+
+  Using _winreg is preferable because it solves an issue on some corporate
+  environments where access to reg.exe is locked down. However, we still need
+  to fallback to reg.exe for the case where the _winreg module is not available
+  (for example in cygwin python).
+
+  Args:
+    key: The registry key.
+    value: The particular registry value to read.
+  Return:
+    contents of the registry key's value, or None on failure.
+  """
+    try:
+        return _RegistryGetValueUsingWinReg(key, value)
+    except ImportError:
+        pass
+
+    # Fallback to reg.exe if we fail to import _winreg.
+    text = _RegistryQuery(key, value)
+    if not text:
+        return None
+    # Extract value.
+    match = re.search(r"REG_\w+\s+([^\r]+)\r\n", text)
+    if not match:
+        return None
+    return match.group(1)
+
+
+def _CreateVersion(name, path, sdk_based=False):
+    """Sets up MSVS project generation.
+
+  Setup is based off the GYP_MSVS_VERSION environment variable or whatever is
+  autodetected if GYP_MSVS_VERSION is not explicitly specified. If a version is
+  passed in that doesn't match a value in versions python will throw a error.
+  """
+    if path:
+        path = os.path.normpath(path)
+    versions = {
+        "2022": VisualStudioVersion(
+            "2022",
+            "Visual Studio 2022",
+            solution_version="12.00",
+            project_version="17.0",
+            flat_sln=False,
+            uses_vcxproj=True,
+            path=path,
+            sdk_based=sdk_based,
+            default_toolset="v143",
+            compatible_sdks=["v8.1", "v10.0"],
+        ),
+        "2019": VisualStudioVersion(
+            "2019",
+            "Visual Studio 2019",
+            solution_version="12.00",
+            project_version="16.0",
+            flat_sln=False,
+            uses_vcxproj=True,
+            path=path,
+            sdk_based=sdk_based,
+            default_toolset="v142",
+            compatible_sdks=["v8.1", "v10.0"],
+        ),
+        "2017": VisualStudioVersion(
+            "2017",
+            "Visual Studio 2017",
+            solution_version="12.00",
+            project_version="15.0",
+            flat_sln=False,
+            uses_vcxproj=True,
+            path=path,
+            sdk_based=sdk_based,
+            default_toolset="v141",
+            compatible_sdks=["v8.1", "v10.0"],
+        ),
+        "2015": VisualStudioVersion(
+            "2015",
+            "Visual Studio 2015",
+            solution_version="12.00",
+            project_version="14.0",
+            flat_sln=False,
+            uses_vcxproj=True,
+            path=path,
+            sdk_based=sdk_based,
+            default_toolset="v140",
+        ),
+        "2013": VisualStudioVersion(
+            "2013",
+            "Visual Studio 2013",
+            solution_version="13.00",
+            project_version="12.0",
+            flat_sln=False,
+            uses_vcxproj=True,
+            path=path,
+            sdk_based=sdk_based,
+            default_toolset="v120",
+        ),
+        "2013e": VisualStudioVersion(
+            "2013e",
+            "Visual Studio 2013",
+            solution_version="13.00",
+            project_version="12.0",
+            flat_sln=True,
+            uses_vcxproj=True,
+            path=path,
+            sdk_based=sdk_based,
+            default_toolset="v120",
+        ),
+        "2012": VisualStudioVersion(
+            "2012",
+            "Visual Studio 2012",
+            solution_version="12.00",
+            project_version="4.0",
+            flat_sln=False,
+            uses_vcxproj=True,
+            path=path,
+            sdk_based=sdk_based,
+            default_toolset="v110",
+        ),
+        "2012e": VisualStudioVersion(
+            "2012e",
+            "Visual Studio 2012",
+            solution_version="12.00",
+            project_version="4.0",
+            flat_sln=True,
+            uses_vcxproj=True,
+            path=path,
+            sdk_based=sdk_based,
+            default_toolset="v110",
+        ),
+        "2010": VisualStudioVersion(
+            "2010",
+            "Visual Studio 2010",
+            solution_version="11.00",
+            project_version="4.0",
+            flat_sln=False,
+            uses_vcxproj=True,
+            path=path,
+            sdk_based=sdk_based,
+        ),
+        "2010e": VisualStudioVersion(
+            "2010e",
+            "Visual C++ Express 2010",
+            solution_version="11.00",
+            project_version="4.0",
+            flat_sln=True,
+            uses_vcxproj=True,
+            path=path,
+            sdk_based=sdk_based,
+        ),
+        "2008": VisualStudioVersion(
+            "2008",
+            "Visual Studio 2008",
+            solution_version="10.00",
+            project_version="9.00",
+            flat_sln=False,
+            uses_vcxproj=False,
+            path=path,
+            sdk_based=sdk_based,
+        ),
+        "2008e": VisualStudioVersion(
+            "2008e",
+            "Visual Studio 2008",
+            solution_version="10.00",
+            project_version="9.00",
+            flat_sln=True,
+            uses_vcxproj=False,
+            path=path,
+            sdk_based=sdk_based,
+        ),
+        "2005": VisualStudioVersion(
+            "2005",
+            "Visual Studio 2005",
+            solution_version="9.00",
+            project_version="8.00",
+            flat_sln=False,
+            uses_vcxproj=False,
+            path=path,
+            sdk_based=sdk_based,
+        ),
+        "2005e": VisualStudioVersion(
+            "2005e",
+            "Visual Studio 2005",
+            solution_version="9.00",
+            project_version="8.00",
+            flat_sln=True,
+            uses_vcxproj=False,
+            path=path,
+            sdk_based=sdk_based,
+        ),
+    }
+    return versions[str(name)]
+
+
+def _ConvertToCygpath(path):
+    """Convert to cygwin path if we are using cygwin."""
+    if sys.platform == "cygwin":
+        p = subprocess.Popen(["cygpath", path], stdout=subprocess.PIPE)
+        path = p.communicate()[0].decode("utf-8").strip()
+    return path
+
+
+def _DetectVisualStudioVersions(versions_to_check, force_express):
+    """Collect the list of installed visual studio versions.
+
+  Returns:
+    A list of visual studio versions installed in descending order of
+    usage preference.
+    Base this on the registry and a quick check if devenv.exe exists.
+    Possibilities are:
+      2005(e) - Visual Studio 2005 (8)
+      2008(e) - Visual Studio 2008 (9)
+      2010(e) - Visual Studio 2010 (10)
+      2012(e) - Visual Studio 2012 (11)
+      2013(e) - Visual Studio 2013 (12)
+      2015    - Visual Studio 2015 (14)
+      2017    - Visual Studio 2017 (15)
+      2019    - Visual Studio 2019 (16)
+      2022    - Visual Studio 2022 (17)
+    Where (e) is e for express editions of MSVS and blank otherwise.
+  """
+    version_to_year = {
+        "8.0": "2005",
+        "9.0": "2008",
+        "10.0": "2010",
+        "11.0": "2012",
+        "12.0": "2013",
+        "14.0": "2015",
+        "15.0": "2017",
+        "16.0": "2019",
+        "17.0": "2022",
+    }
+    versions = []
+    for version in versions_to_check:
+        # Old method of searching for which VS version is installed
+        # We don't use the 2010-encouraged-way because we also want to get the
+        # path to the binaries, which it doesn't offer.
+        keys = [
+            r"HKLM\Software\Microsoft\VisualStudio\%s" % version,
+            r"HKLM\Software\Wow6432Node\Microsoft\VisualStudio\%s" % version,
+            r"HKLM\Software\Microsoft\VCExpress\%s" % version,
+            r"HKLM\Software\Wow6432Node\Microsoft\VCExpress\%s" % version,
+        ]
+        for index in range(len(keys)):
+            path = _RegistryGetValue(keys[index], "InstallDir")
+            if not path:
+                continue
+            path = _ConvertToCygpath(path)
+            # Check for full.
+            full_path = os.path.join(path, "devenv.exe")
+            express_path = os.path.join(path, "*express.exe")
+            if not force_express and os.path.exists(full_path):
+                # Add this one.
+                versions.append(
+                    _CreateVersion(
+                        version_to_year[version], os.path.join(path, "..", "..")
+                    )
+                )
+            # Check for express.
+            elif glob.glob(express_path):
+                # Add this one.
+                versions.append(
+                    _CreateVersion(
+                        version_to_year[version] + "e", os.path.join(path, "..", "..")
+                    )
+                )
+
+        # The old method above does not work when only SDK is installed.
+        keys = [
+            r"HKLM\Software\Microsoft\VisualStudio\SxS\VC7",
+            r"HKLM\Software\Wow6432Node\Microsoft\VisualStudio\SxS\VC7",
+            r"HKLM\Software\Microsoft\VisualStudio\SxS\VS7",
+            r"HKLM\Software\Wow6432Node\Microsoft\VisualStudio\SxS\VS7",
+        ]
+        for index in range(len(keys)):
+            path = _RegistryGetValue(keys[index], version)
+            if not path:
+                continue
+            path = _ConvertToCygpath(path)
+            if version == "15.0":
+                if os.path.exists(path):
+                    versions.append(_CreateVersion("2017", path))
+            elif version != "14.0":  # There is no Express edition for 2015.
+                versions.append(
+                    _CreateVersion(
+                        version_to_year[version] + "e",
+                        os.path.join(path, ".."),
+                        sdk_based=True,
+                    )
+                )
+
+    return versions
+
+
+def SelectVisualStudioVersion(version="auto", allow_fallback=True):
+    """Select which version of Visual Studio projects to generate.
+
+  Arguments:
+    version: Hook to allow caller to force a particular version (vs auto).
+  Returns:
+    An object representing a visual studio project format version.
+  """
+    # In auto mode, check environment variable for override.
+    if version == "auto":
+        version = os.environ.get("GYP_MSVS_VERSION", "auto")
+    version_map = {
+        "auto": ("17.0", "16.0", "15.0", "14.0", "12.0", "10.0", "9.0", "8.0", "11.0"),
+        "2005": ("8.0",),
+        "2005e": ("8.0",),
+        "2008": ("9.0",),
+        "2008e": ("9.0",),
+        "2010": ("10.0",),
+        "2010e": ("10.0",),
+        "2012": ("11.0",),
+        "2012e": ("11.0",),
+        "2013": ("12.0",),
+        "2013e": ("12.0",),
+        "2015": ("14.0",),
+        "2017": ("15.0",),
+        "2019": ("16.0",),
+        "2022": ("17.0",),
+    }
+    override_path = os.environ.get("GYP_MSVS_OVERRIDE_PATH")
+    if override_path:
+        msvs_version = os.environ.get("GYP_MSVS_VERSION")
+        if not msvs_version:
+            raise ValueError(
+                "GYP_MSVS_OVERRIDE_PATH requires GYP_MSVS_VERSION to be "
+                "set to a particular version (e.g. 2010e)."
+            )
+        return _CreateVersion(msvs_version, override_path, sdk_based=True)
+    version = str(version)
+    versions = _DetectVisualStudioVersions(version_map[version], "e" in version)
+    if not versions:
+        if not allow_fallback:
+            raise ValueError("Could not locate Visual Studio installation.")
+        if version == "auto":
+            # Default to 2005 if we couldn't find anything
+            return _CreateVersion("2005", None)
+        else:
+            return _CreateVersion(version, None)
+    return versions[0]
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/__init__.py b/node_modules/node-gyp/gyp/pylib/gyp/__init__.py
new file mode 100644
index 0000000..6790ef9
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/__init__.py
@@ -0,0 +1,666 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+import copy
+import gyp.input
+import argparse
+import os.path
+import re
+import shlex
+import sys
+import traceback
+from gyp.common import GypError
+
+# Default debug modes for GYP
+debug = {}
+
+# List of "official" debug modes, but you can use anything you like.
+DEBUG_GENERAL = "general"
+DEBUG_VARIABLES = "variables"
+DEBUG_INCLUDES = "includes"
+
+
+def DebugOutput(mode, message, *args):
+    if "all" in gyp.debug or mode in gyp.debug:
+        ctx = ("unknown", 0, "unknown")
+        try:
+            f = traceback.extract_stack(limit=2)
+            if f:
+                ctx = f[0][:3]
+        except Exception:
+            pass
+        if args:
+            message %= args
+        print(
+            "%s:%s:%d:%s %s"
+            % (mode.upper(), os.path.basename(ctx[0]), ctx[1], ctx[2], message)
+        )
+
+
+def FindBuildFiles():
+    extension = ".gyp"
+    files = os.listdir(os.getcwd())
+    build_files = []
+    for file in files:
+        if file.endswith(extension):
+            build_files.append(file)
+    return build_files
+
+
+def Load(
+    build_files,
+    format,
+    default_variables={},
+    includes=[],
+    depth=".",
+    params=None,
+    check=False,
+    circular_check=True,
+):
+    """
+  Loads one or more specified build files.
+  default_variables and includes will be copied before use.
+  Returns the generator for the specified format and the
+  data returned by loading the specified build files.
+  """
+    if params is None:
+        params = {}
+
+    if "-" in format:
+        format, params["flavor"] = format.split("-", 1)
+
+    default_variables = copy.copy(default_variables)
+
+    # Default variables provided by this program and its modules should be
+    # named WITH_CAPITAL_LETTERS to provide a distinct "best practice" namespace,
+    # avoiding collisions with user and automatic variables.
+    default_variables["GENERATOR"] = format
+    default_variables["GENERATOR_FLAVOR"] = params.get("flavor", "")
+
+    # Format can be a custom python file, or by default the name of a module
+    # within gyp.generator.
+    if format.endswith(".py"):
+        generator_name = os.path.splitext(format)[0]
+        path, generator_name = os.path.split(generator_name)
+
+        # Make sure the path to the custom generator is in sys.path
+        # Don't worry about removing it once we are done.  Keeping the path
+        # to each generator that is used in sys.path is likely harmless and
+        # arguably a good idea.
+        path = os.path.abspath(path)
+        if path not in sys.path:
+            sys.path.insert(0, path)
+    else:
+        generator_name = "gyp.generator." + format
+
+    # These parameters are passed in order (as opposed to by key)
+    # because ActivePython cannot handle key parameters to __import__.
+    generator = __import__(generator_name, globals(), locals(), generator_name)
+    for (key, val) in generator.generator_default_variables.items():
+        default_variables.setdefault(key, val)
+
+    # Give the generator the opportunity to set additional variables based on
+    # the params it will receive in the output phase.
+    if getattr(generator, "CalculateVariables", None):
+        generator.CalculateVariables(default_variables, params)
+
+    # Give the generator the opportunity to set generator_input_info based on
+    # the params it will receive in the output phase.
+    if getattr(generator, "CalculateGeneratorInputInfo", None):
+        generator.CalculateGeneratorInputInfo(params)
+
+    # Fetch the generator specific info that gets fed to input, we use getattr
+    # so we can default things and the generators only have to provide what
+    # they need.
+    generator_input_info = {
+        "non_configuration_keys": getattr(
+            generator, "generator_additional_non_configuration_keys", []
+        ),
+        "path_sections": getattr(generator, "generator_additional_path_sections", []),
+        "extra_sources_for_rules": getattr(
+            generator, "generator_extra_sources_for_rules", []
+        ),
+        "generator_supports_multiple_toolsets": getattr(
+            generator, "generator_supports_multiple_toolsets", False
+        ),
+        "generator_wants_static_library_dependencies_adjusted": getattr(
+            generator, "generator_wants_static_library_dependencies_adjusted", True
+        ),
+        "generator_wants_sorted_dependencies": getattr(
+            generator, "generator_wants_sorted_dependencies", False
+        ),
+        "generator_filelist_paths": getattr(
+            generator, "generator_filelist_paths", None
+        ),
+    }
+
+    # Process the input specific to this generator.
+    result = gyp.input.Load(
+        build_files,
+        default_variables,
+        includes[:],
+        depth,
+        generator_input_info,
+        check,
+        circular_check,
+        params["parallel"],
+        params["root_targets"],
+    )
+    return [generator] + result
+
+
+def NameValueListToDict(name_value_list):
+    """
+  Takes an array of strings of the form 'NAME=VALUE' and creates a dictionary
+  of the pairs.  If a string is simply NAME, then the value in the dictionary
+  is set to True.  If VALUE can be converted to an integer, it is.
+  """
+    result = {}
+    for item in name_value_list:
+        tokens = item.split("=", 1)
+        if len(tokens) == 2:
+            # If we can make it an int, use that, otherwise, use the string.
+            try:
+                token_value = int(tokens[1])
+            except ValueError:
+                token_value = tokens[1]
+            # Set the variable to the supplied value.
+            result[tokens[0]] = token_value
+        else:
+            # No value supplied, treat it as a boolean and set it.
+            result[tokens[0]] = True
+    return result
+
+
+def ShlexEnv(env_name):
+    flags = os.environ.get(env_name, [])
+    if flags:
+        flags = shlex.split(flags)
+    return flags
+
+
+def FormatOpt(opt, value):
+    if opt.startswith("--"):
+        return f"{opt}={value}"
+    return opt + value
+
+
+def RegenerateAppendFlag(flag, values, predicate, env_name, options):
+    """Regenerate a list of command line flags, for an option of action='append'.
+
+  The |env_name|, if given, is checked in the environment and used to generate
+  an initial list of options, then the options that were specified on the
+  command line (given in |values|) are appended.  This matches the handling of
+  environment variables and command line flags where command line flags override
+  the environment, while not requiring the environment to be set when the flags
+  are used again.
+  """
+    flags = []
+    if options.use_environment and env_name:
+        for flag_value in ShlexEnv(env_name):
+            value = FormatOpt(flag, predicate(flag_value))
+            if value in flags:
+                flags.remove(value)
+            flags.append(value)
+    if values:
+        for flag_value in values:
+            flags.append(FormatOpt(flag, predicate(flag_value)))
+    return flags
+
+
+def RegenerateFlags(options):
+    """Given a parsed options object, and taking the environment variables into
+  account, returns a list of flags that should regenerate an equivalent options
+  object (even in the absence of the environment variables.)
+
+  Any path options will be normalized relative to depth.
+
+  The format flag is not included, as it is assumed the calling generator will
+  set that as appropriate.
+  """
+
+    def FixPath(path):
+        path = gyp.common.FixIfRelativePath(path, options.depth)
+        if not path:
+            return os.path.curdir
+        return path
+
+    def Noop(value):
+        return value
+
+    # We always want to ignore the environment when regenerating, to avoid
+    # duplicate or changed flags in the environment at the time of regeneration.
+    flags = ["--ignore-environment"]
+    for name, metadata in options._regeneration_metadata.items():
+        opt = metadata["opt"]
+        value = getattr(options, name)
+        value_predicate = metadata["type"] == "path" and FixPath or Noop
+        action = metadata["action"]
+        env_name = metadata["env_name"]
+        if action == "append":
+            flags.extend(
+                RegenerateAppendFlag(opt, value, value_predicate, env_name, options)
+            )
+        elif action in ("store", None):  # None is a synonym for 'store'.
+            if value:
+                flags.append(FormatOpt(opt, value_predicate(value)))
+            elif options.use_environment and env_name and os.environ.get(env_name):
+                flags.append(FormatOpt(opt, value_predicate(os.environ.get(env_name))))
+        elif action in ("store_true", "store_false"):
+            if (action == "store_true" and value) or (
+                action == "store_false" and not value
+            ):
+                flags.append(opt)
+            elif options.use_environment and env_name:
+                print(
+                    "Warning: environment regeneration unimplemented "
+                    "for %s flag %r env_name %r" % (action, opt, env_name),
+                    file=sys.stderr,
+                )
+        else:
+            print(
+                "Warning: regeneration unimplemented for action %r "
+                "flag %r" % (action, opt),
+                file=sys.stderr,
+            )
+
+    return flags
+
+
+class RegeneratableOptionParser(argparse.ArgumentParser):
+    def __init__(self, usage):
+        self.__regeneratable_options = {}
+        argparse.ArgumentParser.__init__(self, usage=usage)
+
+    def add_argument(self, *args, **kw):
+        """Add an option to the parser.
+
+    This accepts the same arguments as ArgumentParser.add_argument, plus the
+    following:
+      regenerate: can be set to False to prevent this option from being included
+                  in regeneration.
+      env_name: name of environment variable that additional values for this
+                option come from.
+      type: adds type='path', to tell the regenerator that the values of
+            this option need to be made relative to options.depth
+    """
+        env_name = kw.pop("env_name", None)
+        if "dest" in kw and kw.pop("regenerate", True):
+            dest = kw["dest"]
+
+            # The path type is needed for regenerating, for optparse we can just treat
+            # it as a string.
+            type = kw.get("type")
+            if type == "path":
+                kw["type"] = str
+
+            self.__regeneratable_options[dest] = {
+                "action": kw.get("action"),
+                "type": type,
+                "env_name": env_name,
+                "opt": args[0],
+            }
+
+        argparse.ArgumentParser.add_argument(self, *args, **kw)
+
+    def parse_args(self, *args):
+        values, args = argparse.ArgumentParser.parse_known_args(self, *args)
+        values._regeneration_metadata = self.__regeneratable_options
+        return values, args
+
+
+def gyp_main(args):
+    my_name = os.path.basename(sys.argv[0])
+    usage = "usage: %(prog)s [options ...] [build_file ...]"
+
+    parser = RegeneratableOptionParser(usage=usage.replace("%s", "%(prog)s"))
+    parser.add_argument(
+        "--build",
+        dest="configs",
+        action="append",
+        help="configuration for build after project generation",
+    )
+    parser.add_argument(
+        "--check", dest="check", action="store_true", help="check format of gyp files"
+    )
+    parser.add_argument(
+        "--config-dir",
+        dest="config_dir",
+        action="store",
+        env_name="GYP_CONFIG_DIR",
+        default=None,
+        help="The location for configuration files like " "include.gypi.",
+    )
+    parser.add_argument(
+        "-d",
+        "--debug",
+        dest="debug",
+        metavar="DEBUGMODE",
+        action="append",
+        default=[],
+        help="turn on a debugging "
+        'mode for debugging GYP.  Supported modes are "variables", '
+        '"includes" and "general" or "all" for all of them.',
+    )
+    parser.add_argument(
+        "-D",
+        dest="defines",
+        action="append",
+        metavar="VAR=VAL",
+        env_name="GYP_DEFINES",
+        help="sets variable VAR to value VAL",
+    )
+    parser.add_argument(
+        "--depth",
+        dest="depth",
+        metavar="PATH",
+        type="path",
+        help="set DEPTH gyp variable to a relative path to PATH",
+    )
+    parser.add_argument(
+        "-f",
+        "--format",
+        dest="formats",
+        action="append",
+        env_name="GYP_GENERATORS",
+        regenerate=False,
+        help="output formats to generate",
+    )
+    parser.add_argument(
+        "-G",
+        dest="generator_flags",
+        action="append",
+        default=[],
+        metavar="FLAG=VAL",
+        env_name="GYP_GENERATOR_FLAGS",
+        help="sets generator flag FLAG to VAL",
+    )
+    parser.add_argument(
+        "--generator-output",
+        dest="generator_output",
+        action="store",
+        default=None,
+        metavar="DIR",
+        type="path",
+        env_name="GYP_GENERATOR_OUTPUT",
+        help="puts generated build files under DIR",
+    )
+    parser.add_argument(
+        "--ignore-environment",
+        dest="use_environment",
+        action="store_false",
+        default=True,
+        regenerate=False,
+        help="do not read options from environment variables",
+    )
+    parser.add_argument(
+        "-I",
+        "--include",
+        dest="includes",
+        action="append",
+        metavar="INCLUDE",
+        type="path",
+        help="files to include in all loaded .gyp files",
+    )
+    # --no-circular-check disables the check for circular relationships between
+    # .gyp files.  These relationships should not exist, but they've only been
+    # observed to be harmful with the Xcode generator.  Chromium's .gyp files
+    # currently have some circular relationships on non-Mac platforms, so this
+    # option allows the strict behavior to be used on Macs and the lenient
+    # behavior to be used elsewhere.
+    # TODO(mark): Remove this option when http://crbug.com/35878 is fixed.
+    parser.add_argument(
+        "--no-circular-check",
+        dest="circular_check",
+        action="store_false",
+        default=True,
+        regenerate=False,
+        help="don't check for circular relationships between files",
+    )
+    parser.add_argument(
+        "--no-parallel",
+        action="store_true",
+        default=False,
+        help="Disable multiprocessing",
+    )
+    parser.add_argument(
+        "-S",
+        "--suffix",
+        dest="suffix",
+        default="",
+        help="suffix to add to generated files",
+    )
+    parser.add_argument(
+        "--toplevel-dir",
+        dest="toplevel_dir",
+        action="store",
+        default=None,
+        metavar="DIR",
+        type="path",
+        help="directory to use as the root of the source tree",
+    )
+    parser.add_argument(
+        "-R",
+        "--root-target",
+        dest="root_targets",
+        action="append",
+        metavar="TARGET",
+        help="include only TARGET and its deep dependencies",
+    )
+
+    options, build_files_arg = parser.parse_args(args)
+    build_files = build_files_arg
+
+    # Set up the configuration directory (defaults to ~/.gyp)
+    if not options.config_dir:
+        home = None
+        home_dot_gyp = None
+        if options.use_environment:
+            home_dot_gyp = os.environ.get("GYP_CONFIG_DIR", None)
+            if home_dot_gyp:
+                home_dot_gyp = os.path.expanduser(home_dot_gyp)
+
+        if not home_dot_gyp:
+            home_vars = ["HOME"]
+            if sys.platform in ("cygwin", "win32"):
+                home_vars.append("USERPROFILE")
+            for home_var in home_vars:
+                home = os.getenv(home_var)
+                if home:
+                    home_dot_gyp = os.path.join(home, ".gyp")
+                    if not os.path.exists(home_dot_gyp):
+                        home_dot_gyp = None
+                    else:
+                        break
+    else:
+        home_dot_gyp = os.path.expanduser(options.config_dir)
+
+    if home_dot_gyp and not os.path.exists(home_dot_gyp):
+        home_dot_gyp = None
+
+    if not options.formats:
+        # If no format was given on the command line, then check the env variable.
+        generate_formats = []
+        if options.use_environment:
+            generate_formats = os.environ.get("GYP_GENERATORS", [])
+        if generate_formats:
+            generate_formats = re.split(r"[\s,]", generate_formats)
+        if generate_formats:
+            options.formats = generate_formats
+        else:
+            # Nothing in the variable, default based on platform.
+            if sys.platform == "darwin":
+                options.formats = ["xcode"]
+            elif sys.platform in ("win32", "cygwin"):
+                options.formats = ["msvs"]
+            else:
+                options.formats = ["make"]
+
+    if not options.generator_output and options.use_environment:
+        g_o = os.environ.get("GYP_GENERATOR_OUTPUT")
+        if g_o:
+            options.generator_output = g_o
+
+    options.parallel = not options.no_parallel
+
+    for mode in options.debug:
+        gyp.debug[mode] = 1
+
+    # Do an extra check to avoid work when we're not debugging.
+    if DEBUG_GENERAL in gyp.debug:
+        DebugOutput(DEBUG_GENERAL, "running with these options:")
+        for option, value in sorted(options.__dict__.items()):
+            if option[0] == "_":
+                continue
+            if isinstance(value, str):
+                DebugOutput(DEBUG_GENERAL, "  %s: '%s'", option, value)
+            else:
+                DebugOutput(DEBUG_GENERAL, "  %s: %s", option, value)
+
+    if not build_files:
+        build_files = FindBuildFiles()
+    if not build_files:
+        raise GypError((usage + "\n\n%s: error: no build_file") % (my_name, my_name))
+
+    # TODO(mark): Chromium-specific hack!
+    # For Chromium, the gyp "depth" variable should always be a relative path
+    # to Chromium's top-level "src" directory.  If no depth variable was set
+    # on the command line, try to find a "src" directory by looking at the
+    # absolute path to each build file's directory.  The first "src" component
+    # found will be treated as though it were the path used for --depth.
+    if not options.depth:
+        for build_file in build_files:
+            build_file_dir = os.path.abspath(os.path.dirname(build_file))
+            build_file_dir_components = build_file_dir.split(os.path.sep)
+            components_len = len(build_file_dir_components)
+            for index in range(components_len - 1, -1, -1):
+                if build_file_dir_components[index] == "src":
+                    options.depth = os.path.sep.join(build_file_dir_components)
+                    break
+                del build_file_dir_components[index]
+
+            # If the inner loop found something, break without advancing to another
+            # build file.
+            if options.depth:
+                break
+
+        if not options.depth:
+            raise GypError(
+                "Could not automatically locate src directory.  This is"
+                "a temporary Chromium feature that will be removed.  Use"
+                "--depth as a workaround."
+            )
+
+    # If toplevel-dir is not set, we assume that depth is the root of our source
+    # tree.
+    if not options.toplevel_dir:
+        options.toplevel_dir = options.depth
+
+    # -D on the command line sets variable defaults - D isn't just for define,
+    # it's for default.  Perhaps there should be a way to force (-F?) a
+    # variable's value so that it can't be overridden by anything else.
+    cmdline_default_variables = {}
+    defines = []
+    if options.use_environment:
+        defines += ShlexEnv("GYP_DEFINES")
+    if options.defines:
+        defines += options.defines
+    cmdline_default_variables = NameValueListToDict(defines)
+    if DEBUG_GENERAL in gyp.debug:
+        DebugOutput(
+            DEBUG_GENERAL, "cmdline_default_variables: %s", cmdline_default_variables
+        )
+
+    # Set up includes.
+    includes = []
+
+    # If ~/.gyp/include.gypi exists, it'll be forcibly included into every
+    # .gyp file that's loaded, before anything else is included.
+    if home_dot_gyp:
+        default_include = os.path.join(home_dot_gyp, "include.gypi")
+        if os.path.exists(default_include):
+            print("Using overrides found in " + default_include)
+            includes.append(default_include)
+
+    # Command-line --include files come after the default include.
+    if options.includes:
+        includes.extend(options.includes)
+
+    # Generator flags should be prefixed with the target generator since they
+    # are global across all generator runs.
+    gen_flags = []
+    if options.use_environment:
+        gen_flags += ShlexEnv("GYP_GENERATOR_FLAGS")
+    if options.generator_flags:
+        gen_flags += options.generator_flags
+    generator_flags = NameValueListToDict(gen_flags)
+    if DEBUG_GENERAL in gyp.debug.keys():
+        DebugOutput(DEBUG_GENERAL, "generator_flags: %s", generator_flags)
+
+    # Generate all requested formats (use a set in case we got one format request
+    # twice)
+    for format in set(options.formats):
+        params = {
+            "options": options,
+            "build_files": build_files,
+            "generator_flags": generator_flags,
+            "cwd": os.getcwd(),
+            "build_files_arg": build_files_arg,
+            "gyp_binary": sys.argv[0],
+            "home_dot_gyp": home_dot_gyp,
+            "parallel": options.parallel,
+            "root_targets": options.root_targets,
+            "target_arch": cmdline_default_variables.get("target_arch", ""),
+        }
+
+        # Start with the default variables from the command line.
+        [generator, flat_list, targets, data] = Load(
+            build_files,
+            format,
+            cmdline_default_variables,
+            includes,
+            options.depth,
+            params,
+            options.check,
+            options.circular_check,
+        )
+
+        # TODO(mark): Pass |data| for now because the generator needs a list of
+        # build files that came in.  In the future, maybe it should just accept
+        # a list, and not the whole data dict.
+        # NOTE: flat_list is the flattened dependency graph specifying the order
+        # that targets may be built.  Build systems that operate serially or that
+        # need to have dependencies defined before dependents reference them should
+        # generate targets in the order specified in flat_list.
+        generator.GenerateOutput(flat_list, targets, data, params)
+
+        if options.configs:
+            valid_configs = targets[flat_list[0]]["configurations"]
+            for conf in options.configs:
+                if conf not in valid_configs:
+                    raise GypError("Invalid config specified via --build: %s" % conf)
+            generator.PerformBuild(data, options.configs, params)
+
+    # Done
+    return 0
+
+
+def main(args):
+    try:
+        return gyp_main(args)
+    except GypError as e:
+        sys.stderr.write("gyp: %s\n" % e)
+        return 1
+
+
+# NOTE: setuptools generated console_scripts calls function with no arguments
+def script_main():
+    return main(sys.argv[1:])
+
+
+if __name__ == "__main__":
+    sys.exit(script_main())
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/common.py b/node_modules/node-gyp/gyp/pylib/gyp/common.py
new file mode 100644
index 0000000..9213fcc
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/common.py
@@ -0,0 +1,654 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import errno
+import filecmp
+import os.path
+import re
+import tempfile
+import sys
+import subprocess
+
+from collections.abc import MutableSet
+
+
+# A minimal memoizing decorator. It'll blow up if the args aren't immutable,
+# among other "problems".
+class memoize:
+    def __init__(self, func):
+        self.func = func
+        self.cache = {}
+
+    def __call__(self, *args):
+        try:
+            return self.cache[args]
+        except KeyError:
+            result = self.func(*args)
+            self.cache[args] = result
+            return result
+
+
+class GypError(Exception):
+    """Error class representing an error, which is to be presented
+  to the user.  The main entry point will catch and display this.
+  """
+
+    pass
+
+
+def ExceptionAppend(e, msg):
+    """Append a message to the given exception's message."""
+    if not e.args:
+        e.args = (msg,)
+    elif len(e.args) == 1:
+        e.args = (str(e.args[0]) + " " + msg,)
+    else:
+        e.args = (str(e.args[0]) + " " + msg,) + e.args[1:]
+
+
+def FindQualifiedTargets(target, qualified_list):
+    """
+  Given a list of qualified targets, return the qualified targets for the
+  specified |target|.
+  """
+    return [t for t in qualified_list if ParseQualifiedTarget(t)[1] == target]
+
+
+def ParseQualifiedTarget(target):
+    # Splits a qualified target into a build file, target name and toolset.
+
+    # NOTE: rsplit is used to disambiguate the Windows drive letter separator.
+    target_split = target.rsplit(":", 1)
+    if len(target_split) == 2:
+        [build_file, target] = target_split
+    else:
+        build_file = None
+
+    target_split = target.rsplit("#", 1)
+    if len(target_split) == 2:
+        [target, toolset] = target_split
+    else:
+        toolset = None
+
+    return [build_file, target, toolset]
+
+
+def ResolveTarget(build_file, target, toolset):
+    # This function resolves a target into a canonical form:
+    # - a fully defined build file, either absolute or relative to the current
+    # directory
+    # - a target name
+    # - a toolset
+    #
+    # build_file is the file relative to which 'target' is defined.
+    # target is the qualified target.
+    # toolset is the default toolset for that target.
+    [parsed_build_file, target, parsed_toolset] = ParseQualifiedTarget(target)
+
+    if parsed_build_file:
+        if build_file:
+            # If a relative path, parsed_build_file is relative to the directory
+            # containing build_file.  If build_file is not in the current directory,
+            # parsed_build_file is not a usable path as-is.  Resolve it by
+            # interpreting it as relative to build_file.  If parsed_build_file is
+            # absolute, it is usable as a path regardless of the current directory,
+            # and os.path.join will return it as-is.
+            build_file = os.path.normpath(
+                os.path.join(os.path.dirname(build_file), parsed_build_file)
+            )
+            # Further (to handle cases like ../cwd), make it relative to cwd)
+            if not os.path.isabs(build_file):
+                build_file = RelativePath(build_file, ".")
+        else:
+            build_file = parsed_build_file
+
+    if parsed_toolset:
+        toolset = parsed_toolset
+
+    return [build_file, target, toolset]
+
+
+def BuildFile(fully_qualified_target):
+    # Extracts the build file from the fully qualified target.
+    return ParseQualifiedTarget(fully_qualified_target)[0]
+
+
+def GetEnvironFallback(var_list, default):
+    """Look up a key in the environment, with fallback to secondary keys
+  and finally falling back to a default value."""
+    for var in var_list:
+        if var in os.environ:
+            return os.environ[var]
+    return default
+
+
+def QualifiedTarget(build_file, target, toolset):
+    # "Qualified" means the file that a target was defined in and the target
+    # name, separated by a colon, suffixed by a # and the toolset name:
+    # /path/to/file.gyp:target_name#toolset
+    fully_qualified = build_file + ":" + target
+    if toolset:
+        fully_qualified = fully_qualified + "#" + toolset
+    return fully_qualified
+
+
+@memoize
+def RelativePath(path, relative_to, follow_path_symlink=True):
+    # Assuming both |path| and |relative_to| are relative to the current
+    # directory, returns a relative path that identifies path relative to
+    # relative_to.
+    # If |follow_symlink_path| is true (default) and |path| is a symlink, then
+    # this method returns a path to the real file represented by |path|. If it is
+    # false, this method returns a path to the symlink. If |path| is not a
+    # symlink, this option has no effect.
+
+    # Convert to normalized (and therefore absolute paths).
+    if follow_path_symlink:
+        path = os.path.realpath(path)
+    else:
+        path = os.path.abspath(path)
+    relative_to = os.path.realpath(relative_to)
+
+    # On Windows, we can't create a relative path to a different drive, so just
+    # use the absolute path.
+    if sys.platform == "win32":
+        if (
+            os.path.splitdrive(path)[0].lower()
+            != os.path.splitdrive(relative_to)[0].lower()
+        ):
+            return path
+
+    # Split the paths into components.
+    path_split = path.split(os.path.sep)
+    relative_to_split = relative_to.split(os.path.sep)
+
+    # Determine how much of the prefix the two paths share.
+    prefix_len = len(os.path.commonprefix([path_split, relative_to_split]))
+
+    # Put enough ".." components to back up out of relative_to to the common
+    # prefix, and then append the part of path_split after the common prefix.
+    relative_split = [os.path.pardir] * (
+        len(relative_to_split) - prefix_len
+    ) + path_split[prefix_len:]
+
+    if len(relative_split) == 0:
+        # The paths were the same.
+        return ""
+
+    # Turn it back into a string and we're done.
+    return os.path.join(*relative_split)
+
+
+@memoize
+def InvertRelativePath(path, toplevel_dir=None):
+    """Given a path like foo/bar that is relative to toplevel_dir, return
+  the inverse relative path back to the toplevel_dir.
+
+  E.g. os.path.normpath(os.path.join(path, InvertRelativePath(path)))
+  should always produce the empty string, unless the path contains symlinks.
+  """
+    if not path:
+        return path
+    toplevel_dir = "." if toplevel_dir is None else toplevel_dir
+    return RelativePath(toplevel_dir, os.path.join(toplevel_dir, path))
+
+
+def FixIfRelativePath(path, relative_to):
+    # Like RelativePath but returns |path| unchanged if it is absolute.
+    if os.path.isabs(path):
+        return path
+    return RelativePath(path, relative_to)
+
+
+def UnrelativePath(path, relative_to):
+    # Assuming that |relative_to| is relative to the current directory, and |path|
+    # is a path relative to the dirname of |relative_to|, returns a path that
+    # identifies |path| relative to the current directory.
+    rel_dir = os.path.dirname(relative_to)
+    return os.path.normpath(os.path.join(rel_dir, path))
+
+
+# re objects used by EncodePOSIXShellArgument.  See IEEE 1003.1 XCU.2.2 at
+# http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_02
+# and the documentation for various shells.
+
+# _quote is a pattern that should match any argument that needs to be quoted
+# with double-quotes by EncodePOSIXShellArgument.  It matches the following
+# characters appearing anywhere in an argument:
+#   \t, \n, space  parameter separators
+#   #              comments
+#   $              expansions (quoted to always expand within one argument)
+#   %              called out by IEEE 1003.1 XCU.2.2
+#   &              job control
+#   '              quoting
+#   (, )           subshell execution
+#   *, ?, [        pathname expansion
+#   ;              command delimiter
+#   <, >, |        redirection
+#   =              assignment
+#   {, }           brace expansion (bash)
+#   ~              tilde expansion
+# It also matches the empty string, because "" (or '') is the only way to
+# represent an empty string literal argument to a POSIX shell.
+#
+# This does not match the characters in _escape, because those need to be
+# backslash-escaped regardless of whether they appear in a double-quoted
+# string.
+_quote = re.compile("[\t\n #$%&'()*;<=>?[{|}~]|^$")
+
+# _escape is a pattern that should match any character that needs to be
+# escaped with a backslash, whether or not the argument matched the _quote
+# pattern.  _escape is used with re.sub to backslash anything in _escape's
+# first match group, hence the (parentheses) in the regular expression.
+#
+# _escape matches the following characters appearing anywhere in an argument:
+#   "  to prevent POSIX shells from interpreting this character for quoting
+#   \  to prevent POSIX shells from interpreting this character for escaping
+#   `  to prevent POSIX shells from interpreting this character for command
+#      substitution
+# Missing from this list is $, because the desired behavior of
+# EncodePOSIXShellArgument is to permit parameter (variable) expansion.
+#
+# Also missing from this list is !, which bash will interpret as the history
+# expansion character when history is enabled.  bash does not enable history
+# by default in non-interactive shells, so this is not thought to be a problem.
+# ! was omitted from this list because bash interprets "\!" as a literal string
+# including the backslash character (avoiding history expansion but retaining
+# the backslash), which would not be correct for argument encoding.  Handling
+# this case properly would also be problematic because bash allows the history
+# character to be changed with the histchars shell variable.  Fortunately,
+# as history is not enabled in non-interactive shells and
+# EncodePOSIXShellArgument is only expected to encode for non-interactive
+# shells, there is no room for error here by ignoring !.
+_escape = re.compile(r'(["\\`])')
+
+
+def EncodePOSIXShellArgument(argument):
+    """Encodes |argument| suitably for consumption by POSIX shells.
+
+  argument may be quoted and escaped as necessary to ensure that POSIX shells
+  treat the returned value as a literal representing the argument passed to
+  this function.  Parameter (variable) expansions beginning with $ are allowed
+  to remain intact without escaping the $, to allow the argument to contain
+  references to variables to be expanded by the shell.
+  """
+
+    if not isinstance(argument, str):
+        argument = str(argument)
+
+    if _quote.search(argument):
+        quote = '"'
+    else:
+        quote = ""
+
+    encoded = quote + re.sub(_escape, r"\\\1", argument) + quote
+
+    return encoded
+
+
+def EncodePOSIXShellList(list):
+    """Encodes |list| suitably for consumption by POSIX shells.
+
+  Returns EncodePOSIXShellArgument for each item in list, and joins them
+  together using the space character as an argument separator.
+  """
+
+    encoded_arguments = []
+    for argument in list:
+        encoded_arguments.append(EncodePOSIXShellArgument(argument))
+    return " ".join(encoded_arguments)
+
+
+def DeepDependencyTargets(target_dicts, roots):
+    """Returns the recursive list of target dependencies."""
+    dependencies = set()
+    pending = set(roots)
+    while pending:
+        # Pluck out one.
+        r = pending.pop()
+        # Skip if visited already.
+        if r in dependencies:
+            continue
+        # Add it.
+        dependencies.add(r)
+        # Add its children.
+        spec = target_dicts[r]
+        pending.update(set(spec.get("dependencies", [])))
+        pending.update(set(spec.get("dependencies_original", [])))
+    return list(dependencies - set(roots))
+
+
+def BuildFileTargets(target_list, build_file):
+    """From a target_list, returns the subset from the specified build_file.
+  """
+    return [p for p in target_list if BuildFile(p) == build_file]
+
+
+def AllTargets(target_list, target_dicts, build_file):
+    """Returns all targets (direct and dependencies) for the specified build_file.
+  """
+    bftargets = BuildFileTargets(target_list, build_file)
+    deptargets = DeepDependencyTargets(target_dicts, bftargets)
+    return bftargets + deptargets
+
+
+def WriteOnDiff(filename):
+    """Write to a file only if the new contents differ.
+
+  Arguments:
+    filename: name of the file to potentially write to.
+  Returns:
+    A file like object which will write to temporary file and only overwrite
+    the target if it differs (on close).
+  """
+
+    class Writer:
+        """Wrapper around file which only covers the target if it differs."""
+
+        def __init__(self):
+            # On Cygwin remove the "dir" argument
+            # `C:` prefixed paths are treated as relative,
+            # consequently ending up with current dir "/cygdrive/c/..."
+            # being prefixed to those, which was
+            # obviously a non-existent path,
+            # for example: "/cygdrive/c/<some folder>/C:\<my win style abs path>".
+            # For more details see:
+            # https://docs.python.org/2/library/tempfile.html#tempfile.mkstemp
+            base_temp_dir = "" if IsCygwin() else os.path.dirname(filename)
+            # Pick temporary file.
+            tmp_fd, self.tmp_path = tempfile.mkstemp(
+                suffix=".tmp",
+                prefix=os.path.split(filename)[1] + ".gyp.",
+                dir=base_temp_dir,
+            )
+            try:
+                self.tmp_file = os.fdopen(tmp_fd, "wb")
+            except Exception:
+                # Don't leave turds behind.
+                os.unlink(self.tmp_path)
+                raise
+
+        def __getattr__(self, attrname):
+            # Delegate everything else to self.tmp_file
+            return getattr(self.tmp_file, attrname)
+
+        def close(self):
+            try:
+                # Close tmp file.
+                self.tmp_file.close()
+                # Determine if different.
+                same = False
+                try:
+                    same = filecmp.cmp(self.tmp_path, filename, False)
+                except OSError as e:
+                    if e.errno != errno.ENOENT:
+                        raise
+
+                if same:
+                    # The new file is identical to the old one, just get rid of the new
+                    # one.
+                    os.unlink(self.tmp_path)
+                else:
+                    # The new file is different from the old one,
+                    # or there is no old one.
+                    # Rename the new file to the permanent name.
+                    #
+                    # tempfile.mkstemp uses an overly restrictive mode, resulting in a
+                    # file that can only be read by the owner, regardless of the umask.
+                    # There's no reason to not respect the umask here,
+                    # which means that an extra hoop is required
+                    # to fetch it and reset the new file's mode.
+                    #
+                    # No way to get the umask without setting a new one?  Set a safe one
+                    # and then set it back to the old value.
+                    umask = os.umask(0o77)
+                    os.umask(umask)
+                    os.chmod(self.tmp_path, 0o666 & ~umask)
+                    if sys.platform == "win32" and os.path.exists(filename):
+                        # NOTE: on windows (but not cygwin) rename will not replace an
+                        # existing file, so it must be preceded with a remove.
+                        # Sadly there is no way to make the switch atomic.
+                        os.remove(filename)
+                    os.rename(self.tmp_path, filename)
+            except Exception:
+                # Don't leave turds behind.
+                os.unlink(self.tmp_path)
+                raise
+
+        def write(self, s):
+            self.tmp_file.write(s.encode("utf-8"))
+
+    return Writer()
+
+
+def EnsureDirExists(path):
+    """Make sure the directory for |path| exists."""
+    try:
+        os.makedirs(os.path.dirname(path))
+    except OSError:
+        pass
+
+
+def GetFlavor(params):
+    """Returns |params.flavor| if it's set, the system's default flavor else."""
+    flavors = {
+        "cygwin": "win",
+        "win32": "win",
+        "darwin": "mac",
+    }
+
+    if "flavor" in params:
+        return params["flavor"]
+    if sys.platform in flavors:
+        return flavors[sys.platform]
+    if sys.platform.startswith("sunos"):
+        return "solaris"
+    if sys.platform.startswith(("dragonfly", "freebsd")):
+        return "freebsd"
+    if sys.platform.startswith("openbsd"):
+        return "openbsd"
+    if sys.platform.startswith("netbsd"):
+        return "netbsd"
+    if sys.platform.startswith("aix"):
+        return "aix"
+    if sys.platform.startswith(("os390", "zos")):
+        return "zos"
+
+    return "linux"
+
+
+def CopyTool(flavor, out_path, generator_flags={}):
+    """Finds (flock|mac|win)_tool.gyp in the gyp directory and copies it
+  to |out_path|."""
+    # aix and solaris just need flock emulation. mac and win use more complicated
+    # support scripts.
+    prefix = {"aix": "flock", "solaris": "flock", "mac": "mac", "win": "win"}.get(
+        flavor, None
+    )
+    if not prefix:
+        return
+
+    # Slurp input file.
+    source_path = os.path.join(
+        os.path.dirname(os.path.abspath(__file__)), "%s_tool.py" % prefix
+    )
+    with open(source_path) as source_file:
+        source = source_file.readlines()
+
+    # Set custom header flags.
+    header = "# Generated by gyp. Do not edit.\n"
+    mac_toolchain_dir = generator_flags.get("mac_toolchain_dir", None)
+    if flavor == "mac" and mac_toolchain_dir:
+        header += "import os;\nos.environ['DEVELOPER_DIR']='%s'\n" % mac_toolchain_dir
+
+    # Add header and write it out.
+    tool_path = os.path.join(out_path, "gyp-%s-tool" % prefix)
+    with open(tool_path, "w") as tool_file:
+        tool_file.write("".join([source[0], header] + source[1:]))
+
+    # Make file executable.
+    os.chmod(tool_path, 0o755)
+
+
+# From Alex Martelli,
+# http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/52560
+# ASPN: Python Cookbook: Remove duplicates from a sequence
+# First comment, dated 2001/10/13.
+# (Also in the printed Python Cookbook.)
+
+
+def uniquer(seq, idfun=lambda x: x):
+    seen = {}
+    result = []
+    for item in seq:
+        marker = idfun(item)
+        if marker in seen:
+            continue
+        seen[marker] = 1
+        result.append(item)
+    return result
+
+
+# Based on http://code.activestate.com/recipes/576694/.
+class OrderedSet(MutableSet):
+    def __init__(self, iterable=None):
+        self.end = end = []
+        end += [None, end, end]  # sentinel node for doubly linked list
+        self.map = {}  # key --> [key, prev, next]
+        if iterable is not None:
+            self |= iterable
+
+    def __len__(self):
+        return len(self.map)
+
+    def __contains__(self, key):
+        return key in self.map
+
+    def add(self, key):
+        if key not in self.map:
+            end = self.end
+            curr = end[1]
+            curr[2] = end[1] = self.map[key] = [key, curr, end]
+
+    def discard(self, key):
+        if key in self.map:
+            key, prev_item, next_item = self.map.pop(key)
+            prev_item[2] = next_item
+            next_item[1] = prev_item
+
+    def __iter__(self):
+        end = self.end
+        curr = end[2]
+        while curr is not end:
+            yield curr[0]
+            curr = curr[2]
+
+    def __reversed__(self):
+        end = self.end
+        curr = end[1]
+        while curr is not end:
+            yield curr[0]
+            curr = curr[1]
+
+    # The second argument is an addition that causes a pylint warning.
+    def pop(self, last=True):  # pylint: disable=W0221
+        if not self:
+            raise KeyError("set is empty")
+        key = self.end[1][0] if last else self.end[2][0]
+        self.discard(key)
+        return key
+
+    def __repr__(self):
+        if not self:
+            return f"{self.__class__.__name__}()"
+        return f"{self.__class__.__name__}({list(self)!r})"
+
+    def __eq__(self, other):
+        if isinstance(other, OrderedSet):
+            return len(self) == len(other) and list(self) == list(other)
+        return set(self) == set(other)
+
+    # Extensions to the recipe.
+    def update(self, iterable):
+        for i in iterable:
+            if i not in self:
+                self.add(i)
+
+
+class CycleError(Exception):
+    """An exception raised when an unexpected cycle is detected."""
+
+    def __init__(self, nodes):
+        self.nodes = nodes
+
+    def __str__(self):
+        return "CycleError: cycle involving: " + str(self.nodes)
+
+
+def TopologicallySorted(graph, get_edges):
+    r"""Topologically sort based on a user provided edge definition.
+
+  Args:
+    graph: A list of node names.
+    get_edges: A function mapping from node name to a hashable collection
+               of node names which this node has outgoing edges to.
+  Returns:
+    A list containing all of the node in graph in topological order.
+    It is assumed that calling get_edges once for each node and caching is
+    cheaper than repeatedly calling get_edges.
+  Raises:
+    CycleError in the event of a cycle.
+  Example:
+    graph = {'a': '$(b) $(c)', 'b': 'hi', 'c': '$(b)'}
+    def GetEdges(node):
+      return re.findall(r'\$\(([^))]\)', graph[node])
+    print TopologicallySorted(graph.keys(), GetEdges)
+    ==>
+    ['a', 'c', b']
+  """
+    get_edges = memoize(get_edges)
+    visited = set()
+    visiting = set()
+    ordered_nodes = []
+
+    def Visit(node):
+        if node in visiting:
+            raise CycleError(visiting)
+        if node in visited:
+            return
+        visited.add(node)
+        visiting.add(node)
+        for neighbor in get_edges(node):
+            Visit(neighbor)
+        visiting.remove(node)
+        ordered_nodes.insert(0, node)
+
+    for node in sorted(graph):
+        Visit(node)
+    return ordered_nodes
+
+
+def CrossCompileRequested():
+    # TODO: figure out how to not build extra host objects in the
+    # non-cross-compile case when this is enabled, and enable unconditionally.
+    return (
+        os.environ.get("GYP_CROSSCOMPILE")
+        or os.environ.get("AR_host")
+        or os.environ.get("CC_host")
+        or os.environ.get("CXX_host")
+        or os.environ.get("AR_target")
+        or os.environ.get("CC_target")
+        or os.environ.get("CXX_target")
+    )
+
+
+def IsCygwin():
+    try:
+        out = subprocess.Popen(
+            "uname", stdout=subprocess.PIPE, stderr=subprocess.STDOUT
+        )
+        stdout = out.communicate()[0].decode("utf-8")
+        return "CYGWIN" in str(stdout)
+    except Exception:
+        return False
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/common_test.py b/node_modules/node-gyp/gyp/pylib/gyp/common_test.py
new file mode 100644
index 0000000..0534408
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/common_test.py
@@ -0,0 +1,78 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Unit tests for the common.py file."""
+
+import gyp.common
+import unittest
+import sys
+
+
+class TestTopologicallySorted(unittest.TestCase):
+    def test_Valid(self):
+        """Test that sorting works on a valid graph with one possible order."""
+        graph = {
+            "a": ["b", "c"],
+            "b": [],
+            "c": ["d"],
+            "d": ["b"],
+        }
+
+        def GetEdge(node):
+            return tuple(graph[node])
+
+        self.assertEqual(
+            gyp.common.TopologicallySorted(graph.keys(), GetEdge), ["a", "c", "d", "b"]
+        )
+
+    def test_Cycle(self):
+        """Test that an exception is thrown on a cyclic graph."""
+        graph = {
+            "a": ["b"],
+            "b": ["c"],
+            "c": ["d"],
+            "d": ["a"],
+        }
+
+        def GetEdge(node):
+            return tuple(graph[node])
+
+        self.assertRaises(
+            gyp.common.CycleError, gyp.common.TopologicallySorted, graph.keys(), GetEdge
+        )
+
+
+class TestGetFlavor(unittest.TestCase):
+    """Test that gyp.common.GetFlavor works as intended"""
+
+    original_platform = ""
+
+    def setUp(self):
+        self.original_platform = sys.platform
+
+    def tearDown(self):
+        sys.platform = self.original_platform
+
+    def assertFlavor(self, expected, argument, param):
+        sys.platform = argument
+        self.assertEqual(expected, gyp.common.GetFlavor(param))
+
+    def test_platform_default(self):
+        self.assertFlavor("freebsd", "freebsd9", {})
+        self.assertFlavor("freebsd", "freebsd10", {})
+        self.assertFlavor("openbsd", "openbsd5", {})
+        self.assertFlavor("solaris", "sunos5", {})
+        self.assertFlavor("solaris", "sunos", {})
+        self.assertFlavor("linux", "linux2", {})
+        self.assertFlavor("linux", "linux3", {})
+        self.assertFlavor("linux", "linux", {})
+
+    def test_param(self):
+        self.assertFlavor("foobar", "linux2", {"flavor": "foobar"})
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/easy_xml.py b/node_modules/node-gyp/gyp/pylib/gyp/easy_xml.py
new file mode 100644
index 0000000..bda1a47
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/easy_xml.py
@@ -0,0 +1,165 @@
+# Copyright (c) 2011 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import sys
+import re
+import os
+import locale
+from functools import reduce
+
+
+def XmlToString(content, encoding="utf-8", pretty=False):
+    """ Writes the XML content to disk, touching the file only if it has changed.
+
+  Visual Studio files have a lot of pre-defined structures.  This function makes
+  it easy to represent these structures as Python data structures, instead of
+  having to create a lot of function calls.
+
+  Each XML element of the content is represented as a list composed of:
+  1. The name of the element, a string,
+  2. The attributes of the element, a dictionary (optional), and
+  3+. The content of the element, if any.  Strings are simple text nodes and
+      lists are child elements.
+
+  Example 1:
+      <test/>
+  becomes
+      ['test']
+
+  Example 2:
+      <myelement a='value1' b='value2'>
+         <childtype>This is</childtype>
+         <childtype>it!</childtype>
+      </myelement>
+
+  becomes
+      ['myelement', {'a':'value1', 'b':'value2'},
+         ['childtype', 'This is'],
+         ['childtype', 'it!'],
+      ]
+
+  Args:
+    content:  The structured content to be converted.
+    encoding: The encoding to report on the first XML line.
+    pretty: True if we want pretty printing with indents and new lines.
+
+  Returns:
+    The XML content as a string.
+  """
+    # We create a huge list of all the elements of the file.
+    xml_parts = ['<?xml version="1.0" encoding="%s"?>' % encoding]
+    if pretty:
+        xml_parts.append("\n")
+    _ConstructContentList(xml_parts, content, pretty)
+
+    # Convert it to a string
+    return "".join(xml_parts)
+
+
+def _ConstructContentList(xml_parts, specification, pretty, level=0):
+    """ Appends the XML parts corresponding to the specification.
+
+  Args:
+    xml_parts: A list of XML parts to be appended to.
+    specification:  The specification of the element.  See EasyXml docs.
+    pretty: True if we want pretty printing with indents and new lines.
+    level: Indentation level.
+  """
+    # The first item in a specification is the name of the element.
+    if pretty:
+        indentation = "  " * level
+        new_line = "\n"
+    else:
+        indentation = ""
+        new_line = ""
+    name = specification[0]
+    if not isinstance(name, str):
+        raise Exception(
+            "The first item of an EasyXml specification should be "
+            "a string.  Specification was " + str(specification)
+        )
+    xml_parts.append(indentation + "<" + name)
+
+    # Optionally in second position is a dictionary of the attributes.
+    rest = specification[1:]
+    if rest and isinstance(rest[0], dict):
+        for at, val in sorted(rest[0].items()):
+            xml_parts.append(f' {at}="{_XmlEscape(val, attr=True)}"')
+        rest = rest[1:]
+    if rest:
+        xml_parts.append(">")
+        all_strings = reduce(lambda x, y: x and isinstance(y, str), rest, True)
+        multi_line = not all_strings
+        if multi_line and new_line:
+            xml_parts.append(new_line)
+        for child_spec in rest:
+            # If it's a string, append a text node.
+            # Otherwise recurse over that child definition
+            if isinstance(child_spec, str):
+                xml_parts.append(_XmlEscape(child_spec))
+            else:
+                _ConstructContentList(xml_parts, child_spec, pretty, level + 1)
+        if multi_line and indentation:
+            xml_parts.append(indentation)
+        xml_parts.append(f"</{name}>{new_line}")
+    else:
+        xml_parts.append("/>%s" % new_line)
+
+
+def WriteXmlIfChanged(content, path, encoding="utf-8", pretty=False,
+                      win32=(sys.platform == "win32")):
+    """ Writes the XML content to disk, touching the file only if it has changed.
+
+  Args:
+    content:  The structured content to be written.
+    path: Location of the file.
+    encoding: The encoding to report on the first line of the XML file.
+    pretty: True if we want pretty printing with indents and new lines.
+  """
+    xml_string = XmlToString(content, encoding, pretty)
+    if win32 and os.linesep != "\r\n":
+        xml_string = xml_string.replace("\n", "\r\n")
+
+    default_encoding = locale.getdefaultlocale()[1]
+    if default_encoding and default_encoding.upper() != encoding.upper():
+        xml_string = xml_string.encode(encoding)
+
+    # Get the old content
+    try:
+        with open(path) as file:
+            existing = file.read()
+    except OSError:
+        existing = None
+
+    # It has changed, write it
+    if existing != xml_string:
+        with open(path, "wb") as file:
+            file.write(xml_string)
+
+
+_xml_escape_map = {
+    '"': "&quot;",
+    "'": "&apos;",
+    "<": "&lt;",
+    ">": "&gt;",
+    "&": "&amp;",
+    "\n": "&#xA;",
+    "\r": "&#xD;",
+}
+
+
+_xml_escape_re = re.compile("(%s)" % "|".join(map(re.escape, _xml_escape_map.keys())))
+
+
+def _XmlEscape(value, attr=False):
+    """ Escape a string for inclusion in XML."""
+
+    def replace(match):
+        m = match.string[match.start() : match.end()]
+        # don't replace single quotes in attrs
+        if attr and m == "'":
+            return m
+        return _xml_escape_map[m]
+
+    return _xml_escape_re.sub(replace, value)
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/easy_xml_test.py b/node_modules/node-gyp/gyp/pylib/gyp/easy_xml_test.py
new file mode 100644
index 0000000..342f693
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/easy_xml_test.py
@@ -0,0 +1,109 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2011 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+""" Unit tests for the easy_xml.py file. """
+
+import gyp.easy_xml as easy_xml
+import unittest
+
+from io import StringIO
+
+
+class TestSequenceFunctions(unittest.TestCase):
+    def setUp(self):
+        self.stderr = StringIO()
+
+    def test_EasyXml_simple(self):
+        self.assertEqual(
+            easy_xml.XmlToString(["test"]),
+            '<?xml version="1.0" encoding="utf-8"?><test/>',
+        )
+
+        self.assertEqual(
+            easy_xml.XmlToString(["test"], encoding="Windows-1252"),
+            '<?xml version="1.0" encoding="Windows-1252"?><test/>',
+        )
+
+    def test_EasyXml_simple_with_attributes(self):
+        self.assertEqual(
+            easy_xml.XmlToString(["test2", {"a": "value1", "b": "value2"}]),
+            '<?xml version="1.0" encoding="utf-8"?><test2 a="value1" b="value2"/>',
+        )
+
+    def test_EasyXml_escaping(self):
+        original = "<test>'\"\r&\nfoo"
+        converted = "&lt;test&gt;'&quot;&#xD;&amp;&#xA;foo"
+        converted_apos = converted.replace("'", "&apos;")
+        self.assertEqual(
+            easy_xml.XmlToString(["test3", {"a": original}, original]),
+            '<?xml version="1.0" encoding="utf-8"?><test3 a="%s">%s</test3>'
+            % (converted, converted_apos),
+        )
+
+    def test_EasyXml_pretty(self):
+        self.assertEqual(
+            easy_xml.XmlToString(
+                ["test3", ["GrandParent", ["Parent1", ["Child"]], ["Parent2"]]],
+                pretty=True,
+            ),
+            '<?xml version="1.0" encoding="utf-8"?>\n'
+            "<test3>\n"
+            "  <GrandParent>\n"
+            "    <Parent1>\n"
+            "      <Child/>\n"
+            "    </Parent1>\n"
+            "    <Parent2/>\n"
+            "  </GrandParent>\n"
+            "</test3>\n",
+        )
+
+    def test_EasyXml_complex(self):
+        # We want to create:
+        target = (
+            '<?xml version="1.0" encoding="utf-8"?>'
+            "<Project>"
+            '<PropertyGroup Label="Globals">'
+            "<ProjectGuid>{D2250C20-3A94-4FB9-AF73-11BC5B73884B}</ProjectGuid>"
+            "<Keyword>Win32Proj</Keyword>"
+            "<RootNamespace>automated_ui_tests</RootNamespace>"
+            "</PropertyGroup>"
+            '<Import Project="$(VCTargetsPath)\\Microsoft.Cpp.props"/>'
+            "<PropertyGroup "
+            "Condition=\"'$(Configuration)|$(Platform)'=="
+            '\'Debug|Win32\'" Label="Configuration">'
+            "<ConfigurationType>Application</ConfigurationType>"
+            "<CharacterSet>Unicode</CharacterSet>"
+            "</PropertyGroup>"
+            "</Project>"
+        )
+
+        xml = easy_xml.XmlToString(
+            [
+                "Project",
+                [
+                    "PropertyGroup",
+                    {"Label": "Globals"},
+                    ["ProjectGuid", "{D2250C20-3A94-4FB9-AF73-11BC5B73884B}"],
+                    ["Keyword", "Win32Proj"],
+                    ["RootNamespace", "automated_ui_tests"],
+                ],
+                ["Import", {"Project": "$(VCTargetsPath)\\Microsoft.Cpp.props"}],
+                [
+                    "PropertyGroup",
+                    {
+                        "Condition": "'$(Configuration)|$(Platform)'=='Debug|Win32'",
+                        "Label": "Configuration",
+                    },
+                    ["ConfigurationType", "Application"],
+                    ["CharacterSet", "Unicode"],
+                ],
+            ]
+        )
+        self.assertEqual(xml, target)
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/flock_tool.py b/node_modules/node-gyp/gyp/pylib/gyp/flock_tool.py
new file mode 100644
index 0000000..1cb9815
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/flock_tool.py
@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+# Copyright (c) 2011 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""These functions are executed via gyp-flock-tool when using the Makefile
+generator.  Used on systems that don't have a built-in flock."""
+
+import fcntl
+import os
+import struct
+import subprocess
+import sys
+
+
+def main(args):
+    executor = FlockTool()
+    executor.Dispatch(args)
+
+
+class FlockTool:
+    """This class emulates the 'flock' command."""
+
+    def Dispatch(self, args):
+        """Dispatches a string command to a method."""
+        if len(args) < 1:
+            raise Exception("Not enough arguments")
+
+        method = "Exec%s" % self._CommandifyName(args[0])
+        getattr(self, method)(*args[1:])
+
+    def _CommandifyName(self, name_string):
+        """Transforms a tool name like copy-info-plist to CopyInfoPlist"""
+        return name_string.title().replace("-", "")
+
+    def ExecFlock(self, lockfile, *cmd_list):
+        """Emulates the most basic behavior of Linux's flock(1)."""
+        # Rely on exception handling to report errors.
+        # Note that the stock python on SunOS has a bug
+        # where fcntl.flock(fd, LOCK_EX) always fails
+        # with EBADF, that's why we use this F_SETLK
+        # hack instead.
+        fd = os.open(lockfile, os.O_WRONLY | os.O_NOCTTY | os.O_CREAT, 0o666)
+        if sys.platform.startswith("aix"):
+            # Python on AIX is compiled with LARGEFILE support, which changes the
+            # struct size.
+            op = struct.pack("hhIllqq", fcntl.F_WRLCK, 0, 0, 0, 0, 0, 0)
+        else:
+            op = struct.pack("hhllhhl", fcntl.F_WRLCK, 0, 0, 0, 0, 0, 0)
+        fcntl.fcntl(fd, fcntl.F_SETLK, op)
+        return subprocess.call(cmd_list)
+
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/__init__.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/analyzer.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/analyzer.py
new file mode 100644
index 0000000..f15df00
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/analyzer.py
@@ -0,0 +1,808 @@
+# Copyright (c) 2014 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""
+This script is intended for use as a GYP_GENERATOR. It takes as input (by way of
+the generator flag config_path) the path of a json file that dictates the files
+and targets to search for. The following keys are supported:
+files: list of paths (relative) of the files to search for.
+test_targets: unqualified target names to search for. Any target in this list
+that depends upon a file in |files| is output regardless of the type of target
+or chain of dependencies.
+additional_compile_targets: Unqualified targets to search for in addition to
+test_targets. Targets in the combined list that depend upon a file in |files|
+are not necessarily output. For example, if the target is of type none then the
+target is not output (but one of the descendants of the target will be).
+
+The following is output:
+error: only supplied if there is an error.
+compile_targets: minimal set of targets that directly or indirectly (for
+  targets of type none) depend on the files in |files| and is one of the
+  supplied targets or a target that one of the supplied targets depends on.
+  The expectation is this set of targets is passed into a build step. This list
+  always contains the output of test_targets as well.
+test_targets: set of targets from the supplied |test_targets| that either
+  directly or indirectly depend upon a file in |files|. This list if useful
+  if additional processing needs to be done for certain targets after the
+  build, such as running tests.
+status: outputs one of three values: none of the supplied files were found,
+  one of the include files changed so that it should be assumed everything
+  changed (in this case test_targets and compile_targets are not output) or at
+  least one file was found.
+invalid_targets: list of supplied targets that were not found.
+
+Example:
+Consider a graph like the following:
+  A     D
+ / \
+B   C
+A depends upon both B and C, A is of type none and B and C are executables.
+D is an executable, has no dependencies and nothing depends on it.
+If |additional_compile_targets| = ["A"], |test_targets| = ["B", "C"] and
+files = ["b.cc", "d.cc"] (B depends upon b.cc and D depends upon d.cc), then
+the following is output:
+|compile_targets| = ["B"] B must built as it depends upon the changed file b.cc
+and the supplied target A depends upon it. A is not output as a build_target
+as it is of type none with no rules and actions.
+|test_targets| = ["B"] B directly depends upon the change file b.cc.
+
+Even though the file d.cc, which D depends upon, has changed D is not output
+as it was not supplied by way of |additional_compile_targets| or |test_targets|.
+
+If the generator flag analyzer_output_path is specified, output is written
+there. Otherwise output is written to stdout.
+
+In Gyp the "all" target is shorthand for the root targets in the files passed
+to gyp. For example, if file "a.gyp" contains targets "a1" and
+"a2", and file "b.gyp" contains targets "b1" and "b2" and "a2" has a dependency
+on "b2" and gyp is supplied "a.gyp" then "all" consists of "a1" and "a2".
+Notice that "b1" and "b2" are not in the "all" target as "b.gyp" was not
+directly supplied to gyp. OTOH if both "a.gyp" and "b.gyp" are supplied to gyp
+then the "all" target includes "b1" and "b2".
+"""
+
+
+import gyp.common
+import json
+import os
+import posixpath
+
+debug = False
+
+found_dependency_string = "Found dependency"
+no_dependency_string = "No dependencies"
+# Status when it should be assumed that everything has changed.
+all_changed_string = "Found dependency (all)"
+
+# MatchStatus is used indicate if and how a target depends upon the supplied
+# sources.
+# The target's sources contain one of the supplied paths.
+MATCH_STATUS_MATCHES = 1
+# The target has a dependency on another target that contains one of the
+# supplied paths.
+MATCH_STATUS_MATCHES_BY_DEPENDENCY = 2
+# The target's sources weren't in the supplied paths and none of the target's
+# dependencies depend upon a target that matched.
+MATCH_STATUS_DOESNT_MATCH = 3
+# The target doesn't contain the source, but the dependent targets have not yet
+# been visited to determine a more specific status yet.
+MATCH_STATUS_TBD = 4
+
+generator_supports_multiple_toolsets = gyp.common.CrossCompileRequested()
+
+generator_wants_static_library_dependencies_adjusted = False
+
+generator_default_variables = {}
+for dirname in [
+    "INTERMEDIATE_DIR",
+    "SHARED_INTERMEDIATE_DIR",
+    "PRODUCT_DIR",
+    "LIB_DIR",
+    "SHARED_LIB_DIR",
+]:
+    generator_default_variables[dirname] = "!!!"
+
+for unused in [
+    "RULE_INPUT_PATH",
+    "RULE_INPUT_ROOT",
+    "RULE_INPUT_NAME",
+    "RULE_INPUT_DIRNAME",
+    "RULE_INPUT_EXT",
+    "EXECUTABLE_PREFIX",
+    "EXECUTABLE_SUFFIX",
+    "STATIC_LIB_PREFIX",
+    "STATIC_LIB_SUFFIX",
+    "SHARED_LIB_PREFIX",
+    "SHARED_LIB_SUFFIX",
+    "CONFIGURATION_NAME",
+]:
+    generator_default_variables[unused] = ""
+
+
+def _ToGypPath(path):
+    """Converts a path to the format used by gyp."""
+    if os.sep == "\\" and os.altsep == "/":
+        return path.replace("\\", "/")
+    return path
+
+
+def _ResolveParent(path, base_path_components):
+    """Resolves |path|, which starts with at least one '../'. Returns an empty
+  string if the path shouldn't be considered. See _AddSources() for a
+  description of |base_path_components|."""
+    depth = 0
+    while path.startswith("../"):
+        depth += 1
+        path = path[3:]
+    # Relative includes may go outside the source tree. For example, an action may
+    # have inputs in /usr/include, which are not in the source tree.
+    if depth > len(base_path_components):
+        return ""
+    if depth == len(base_path_components):
+        return path
+    return (
+        "/".join(base_path_components[0 : len(base_path_components) - depth])
+        + "/"
+        + path
+    )
+
+
+def _AddSources(sources, base_path, base_path_components, result):
+    """Extracts valid sources from |sources| and adds them to |result|. Each
+  source file is relative to |base_path|, but may contain '..'. To make
+  resolving '..' easier |base_path_components| contains each of the
+  directories in |base_path|. Additionally each source may contain variables.
+  Such sources are ignored as it is assumed dependencies on them are expressed
+  and tracked in some other means."""
+    # NOTE: gyp paths are always posix style.
+    for source in sources:
+        if not len(source) or source.startswith("!!!") or source.startswith("$"):
+            continue
+        # variable expansion may lead to //.
+        org_source = source
+        source = source[0] + source[1:].replace("//", "/")
+        if source.startswith("../"):
+            source = _ResolveParent(source, base_path_components)
+            if len(source):
+                result.append(source)
+            continue
+        result.append(base_path + source)
+        if debug:
+            print("AddSource", org_source, result[len(result) - 1])
+
+
+def _ExtractSourcesFromAction(action, base_path, base_path_components, results):
+    if "inputs" in action:
+        _AddSources(action["inputs"], base_path, base_path_components, results)
+
+
+def _ToLocalPath(toplevel_dir, path):
+    """Converts |path| to a path relative to |toplevel_dir|."""
+    if path == toplevel_dir:
+        return ""
+    if path.startswith(toplevel_dir + "/"):
+        return path[len(toplevel_dir) + len("/") :]
+    return path
+
+
+def _ExtractSources(target, target_dict, toplevel_dir):
+    # |target| is either absolute or relative and in the format of the OS. Gyp
+    # source paths are always posix. Convert |target| to a posix path relative to
+    # |toplevel_dir_|. This is done to make it easy to build source paths.
+    base_path = posixpath.dirname(_ToLocalPath(toplevel_dir, _ToGypPath(target)))
+    base_path_components = base_path.split("/")
+
+    # Add a trailing '/' so that _AddSources() can easily build paths.
+    if len(base_path):
+        base_path += "/"
+
+    if debug:
+        print("ExtractSources", target, base_path)
+
+    results = []
+    if "sources" in target_dict:
+        _AddSources(target_dict["sources"], base_path, base_path_components, results)
+    # Include the inputs from any actions. Any changes to these affect the
+    # resulting output.
+    if "actions" in target_dict:
+        for action in target_dict["actions"]:
+            _ExtractSourcesFromAction(action, base_path, base_path_components, results)
+    if "rules" in target_dict:
+        for rule in target_dict["rules"]:
+            _ExtractSourcesFromAction(rule, base_path, base_path_components, results)
+
+    return results
+
+
+class Target:
+    """Holds information about a particular target:
+  deps: set of Targets this Target depends upon. This is not recursive, only the
+    direct dependent Targets.
+  match_status: one of the MatchStatus values.
+  back_deps: set of Targets that have a dependency on this Target.
+  visited: used during iteration to indicate whether we've visited this target.
+    This is used for two iterations, once in building the set of Targets and
+    again in _GetBuildTargets().
+  name: fully qualified name of the target.
+  requires_build: True if the target type is such that it needs to be built.
+    See _DoesTargetTypeRequireBuild for details.
+  added_to_compile_targets: used when determining if the target was added to the
+    set of targets that needs to be built.
+  in_roots: true if this target is a descendant of one of the root nodes.
+  is_executable: true if the type of target is executable.
+  is_static_library: true if the type of target is static_library.
+  is_or_has_linked_ancestor: true if the target does a link (eg executable), or
+    if there is a target in back_deps that does a link."""
+
+    def __init__(self, name):
+        self.deps = set()
+        self.match_status = MATCH_STATUS_TBD
+        self.back_deps = set()
+        self.name = name
+        # TODO(sky): I don't like hanging this off Target. This state is specific
+        # to certain functions and should be isolated there.
+        self.visited = False
+        self.requires_build = False
+        self.added_to_compile_targets = False
+        self.in_roots = False
+        self.is_executable = False
+        self.is_static_library = False
+        self.is_or_has_linked_ancestor = False
+
+
+class Config:
+    """Details what we're looking for
+  files: set of files to search for
+  targets: see file description for details."""
+
+    def __init__(self):
+        self.files = []
+        self.targets = set()
+        self.additional_compile_target_names = set()
+        self.test_target_names = set()
+
+    def Init(self, params):
+        """Initializes Config. This is a separate method as it raises an exception
+    if there is a parse error."""
+        generator_flags = params.get("generator_flags", {})
+        config_path = generator_flags.get("config_path", None)
+        if not config_path:
+            return
+        try:
+            f = open(config_path)
+            config = json.load(f)
+            f.close()
+        except OSError:
+            raise Exception("Unable to open file " + config_path)
+        except ValueError as e:
+            raise Exception("Unable to parse config file " + config_path + str(e))
+        if not isinstance(config, dict):
+            raise Exception("config_path must be a JSON file containing a dictionary")
+        self.files = config.get("files", [])
+        self.additional_compile_target_names = set(
+            config.get("additional_compile_targets", [])
+        )
+        self.test_target_names = set(config.get("test_targets", []))
+
+
+def _WasBuildFileModified(build_file, data, files, toplevel_dir):
+    """Returns true if the build file |build_file| is either in |files| or
+  one of the files included by |build_file| is in |files|. |toplevel_dir| is
+  the root of the source tree."""
+    if _ToLocalPath(toplevel_dir, _ToGypPath(build_file)) in files:
+        if debug:
+            print("gyp file modified", build_file)
+        return True
+
+    # First element of included_files is the file itself.
+    if len(data[build_file]["included_files"]) <= 1:
+        return False
+
+    for include_file in data[build_file]["included_files"][1:]:
+        # |included_files| are relative to the directory of the |build_file|.
+        rel_include_file = _ToGypPath(
+            gyp.common.UnrelativePath(include_file, build_file)
+        )
+        if _ToLocalPath(toplevel_dir, rel_include_file) in files:
+            if debug:
+                print(
+                    "included gyp file modified, gyp_file=",
+                    build_file,
+                    "included file=",
+                    rel_include_file,
+                )
+            return True
+    return False
+
+
+def _GetOrCreateTargetByName(targets, target_name):
+    """Creates or returns the Target at targets[target_name]. If there is no
+  Target for |target_name| one is created. Returns a tuple of whether a new
+  Target was created and the Target."""
+    if target_name in targets:
+        return False, targets[target_name]
+    target = Target(target_name)
+    targets[target_name] = target
+    return True, target
+
+
+def _DoesTargetTypeRequireBuild(target_dict):
+    """Returns true if the target type is such that it needs to be built."""
+    # If a 'none' target has rules or actions we assume it requires a build.
+    return bool(
+        target_dict["type"] != "none"
+        or target_dict.get("actions")
+        or target_dict.get("rules")
+    )
+
+
+def _GenerateTargets(data, target_list, target_dicts, toplevel_dir, files, build_files):
+    """Returns a tuple of the following:
+  . A dictionary mapping from fully qualified name to Target.
+  . A list of the targets that have a source file in |files|.
+  . Targets that constitute the 'all' target. See description at top of file
+    for details on the 'all' target.
+  This sets the |match_status| of the targets that contain any of the source
+  files in |files| to MATCH_STATUS_MATCHES.
+  |toplevel_dir| is the root of the source tree."""
+    # Maps from target name to Target.
+    name_to_target = {}
+
+    # Targets that matched.
+    matching_targets = []
+
+    # Queue of targets to visit.
+    targets_to_visit = target_list[:]
+
+    # Maps from build file to a boolean indicating whether the build file is in
+    # |files|.
+    build_file_in_files = {}
+
+    # Root targets across all files.
+    roots = set()
+
+    # Set of Targets in |build_files|.
+    build_file_targets = set()
+
+    while len(targets_to_visit) > 0:
+        target_name = targets_to_visit.pop()
+        created_target, target = _GetOrCreateTargetByName(name_to_target, target_name)
+        if created_target:
+            roots.add(target)
+        elif target.visited:
+            continue
+
+        target.visited = True
+        target.requires_build = _DoesTargetTypeRequireBuild(target_dicts[target_name])
+        target_type = target_dicts[target_name]["type"]
+        target.is_executable = target_type == "executable"
+        target.is_static_library = target_type == "static_library"
+        target.is_or_has_linked_ancestor = (
+            target_type == "executable" or target_type == "shared_library"
+        )
+
+        build_file = gyp.common.ParseQualifiedTarget(target_name)[0]
+        if build_file not in build_file_in_files:
+            build_file_in_files[build_file] = _WasBuildFileModified(
+                build_file, data, files, toplevel_dir
+            )
+
+        if build_file in build_files:
+            build_file_targets.add(target)
+
+        # If a build file (or any of its included files) is modified we assume all
+        # targets in the file are modified.
+        if build_file_in_files[build_file]:
+            print("matching target from modified build file", target_name)
+            target.match_status = MATCH_STATUS_MATCHES
+            matching_targets.append(target)
+        else:
+            sources = _ExtractSources(
+                target_name, target_dicts[target_name], toplevel_dir
+            )
+            for source in sources:
+                if _ToGypPath(os.path.normpath(source)) in files:
+                    print("target", target_name, "matches", source)
+                    target.match_status = MATCH_STATUS_MATCHES
+                    matching_targets.append(target)
+                    break
+
+        # Add dependencies to visit as well as updating back pointers for deps.
+        for dep in target_dicts[target_name].get("dependencies", []):
+            targets_to_visit.append(dep)
+
+            created_dep_target, dep_target = _GetOrCreateTargetByName(
+                name_to_target, dep
+            )
+            if not created_dep_target:
+                roots.discard(dep_target)
+
+            target.deps.add(dep_target)
+            dep_target.back_deps.add(target)
+
+    return name_to_target, matching_targets, roots & build_file_targets
+
+
+def _GetUnqualifiedToTargetMapping(all_targets, to_find):
+    """Returns a tuple of the following:
+  . mapping (dictionary) from unqualified name to Target for all the
+    Targets in |to_find|.
+  . any target names not found. If this is empty all targets were found."""
+    result = {}
+    if not to_find:
+        return {}, []
+    to_find = set(to_find)
+    for target_name in all_targets.keys():
+        extracted = gyp.common.ParseQualifiedTarget(target_name)
+        if len(extracted) > 1 and extracted[1] in to_find:
+            to_find.remove(extracted[1])
+            result[extracted[1]] = all_targets[target_name]
+            if not to_find:
+                return result, []
+    return result, [x for x in to_find]
+
+
+def _DoesTargetDependOnMatchingTargets(target):
+    """Returns true if |target| or any of its dependencies is one of the
+  targets containing the files supplied as input to analyzer. This updates
+  |matches| of the Targets as it recurses.
+  target: the Target to look for."""
+    if target.match_status == MATCH_STATUS_DOESNT_MATCH:
+        return False
+    if (
+        target.match_status == MATCH_STATUS_MATCHES
+        or target.match_status == MATCH_STATUS_MATCHES_BY_DEPENDENCY
+    ):
+        return True
+    for dep in target.deps:
+        if _DoesTargetDependOnMatchingTargets(dep):
+            target.match_status = MATCH_STATUS_MATCHES_BY_DEPENDENCY
+            print("\t", target.name, "matches by dep", dep.name)
+            return True
+    target.match_status = MATCH_STATUS_DOESNT_MATCH
+    return False
+
+
+def _GetTargetsDependingOnMatchingTargets(possible_targets):
+    """Returns the list of Targets in |possible_targets| that depend (either
+  directly on indirectly) on at least one of the targets containing the files
+  supplied as input to analyzer.
+  possible_targets: targets to search from."""
+    found = []
+    print("Targets that matched by dependency:")
+    for target in possible_targets:
+        if _DoesTargetDependOnMatchingTargets(target):
+            found.append(target)
+    return found
+
+
+def _AddCompileTargets(target, roots, add_if_no_ancestor, result):
+    """Recurses through all targets that depend on |target|, adding all targets
+  that need to be built (and are in |roots|) to |result|.
+  roots: set of root targets.
+  add_if_no_ancestor: If true and there are no ancestors of |target| then add
+  |target| to |result|. |target| must still be in |roots|.
+  result: targets that need to be built are added here."""
+    if target.visited:
+        return
+
+    target.visited = True
+    target.in_roots = target in roots
+
+    for back_dep_target in target.back_deps:
+        _AddCompileTargets(back_dep_target, roots, False, result)
+        target.added_to_compile_targets |= back_dep_target.added_to_compile_targets
+        target.in_roots |= back_dep_target.in_roots
+        target.is_or_has_linked_ancestor |= back_dep_target.is_or_has_linked_ancestor
+
+    # Always add 'executable' targets. Even though they may be built by other
+    # targets that depend upon them it makes detection of what is going to be
+    # built easier.
+    # And always add static_libraries that have no dependencies on them from
+    # linkables. This is necessary as the other dependencies on them may be
+    # static libraries themselves, which are not compile time dependencies.
+    if target.in_roots and (
+        target.is_executable
+        or (
+            not target.added_to_compile_targets
+            and (add_if_no_ancestor or target.requires_build)
+        )
+        or (
+            target.is_static_library
+            and add_if_no_ancestor
+            and not target.is_or_has_linked_ancestor
+        )
+    ):
+        print(
+            "\t\tadding to compile targets",
+            target.name,
+            "executable",
+            target.is_executable,
+            "added_to_compile_targets",
+            target.added_to_compile_targets,
+            "add_if_no_ancestor",
+            add_if_no_ancestor,
+            "requires_build",
+            target.requires_build,
+            "is_static_library",
+            target.is_static_library,
+            "is_or_has_linked_ancestor",
+            target.is_or_has_linked_ancestor,
+        )
+        result.add(target)
+        target.added_to_compile_targets = True
+
+
+def _GetCompileTargets(matching_targets, supplied_targets):
+    """Returns the set of Targets that require a build.
+  matching_targets: targets that changed and need to be built.
+  supplied_targets: set of targets supplied to analyzer to search from."""
+    result = set()
+    for target in matching_targets:
+        print("finding compile targets for match", target.name)
+        _AddCompileTargets(target, supplied_targets, True, result)
+    return result
+
+
+def _WriteOutput(params, **values):
+    """Writes the output, either to stdout or a file is specified."""
+    if "error" in values:
+        print("Error:", values["error"])
+    if "status" in values:
+        print(values["status"])
+    if "targets" in values:
+        values["targets"].sort()
+        print("Supplied targets that depend on changed files:")
+        for target in values["targets"]:
+            print("\t", target)
+    if "invalid_targets" in values:
+        values["invalid_targets"].sort()
+        print("The following targets were not found:")
+        for target in values["invalid_targets"]:
+            print("\t", target)
+    if "build_targets" in values:
+        values["build_targets"].sort()
+        print("Targets that require a build:")
+        for target in values["build_targets"]:
+            print("\t", target)
+    if "compile_targets" in values:
+        values["compile_targets"].sort()
+        print("Targets that need to be built:")
+        for target in values["compile_targets"]:
+            print("\t", target)
+    if "test_targets" in values:
+        values["test_targets"].sort()
+        print("Test targets:")
+        for target in values["test_targets"]:
+            print("\t", target)
+
+    output_path = params.get("generator_flags", {}).get("analyzer_output_path", None)
+    if not output_path:
+        print(json.dumps(values))
+        return
+    try:
+        f = open(output_path, "w")
+        f.write(json.dumps(values) + "\n")
+        f.close()
+    except OSError as e:
+        print("Error writing to output file", output_path, str(e))
+
+
+def _WasGypIncludeFileModified(params, files):
+    """Returns true if one of the files in |files| is in the set of included
+  files."""
+    if params["options"].includes:
+        for include in params["options"].includes:
+            if _ToGypPath(os.path.normpath(include)) in files:
+                print("Include file modified, assuming all changed", include)
+                return True
+    return False
+
+
+def _NamesNotIn(names, mapping):
+    """Returns a list of the values in |names| that are not in |mapping|."""
+    return [name for name in names if name not in mapping]
+
+
+def _LookupTargets(names, mapping):
+    """Returns a list of the mapping[name] for each value in |names| that is in
+  |mapping|."""
+    return [mapping[name] for name in names if name in mapping]
+
+
+def CalculateVariables(default_variables, params):
+    """Calculate additional variables for use in the build (called by gyp)."""
+    flavor = gyp.common.GetFlavor(params)
+    if flavor == "mac":
+        default_variables.setdefault("OS", "mac")
+    elif flavor == "win":
+        default_variables.setdefault("OS", "win")
+        gyp.msvs_emulation.CalculateCommonVariables(default_variables, params)
+    else:
+        operating_system = flavor
+        if flavor == "android":
+            operating_system = "linux"  # Keep this legacy behavior for now.
+        default_variables.setdefault("OS", operating_system)
+
+
+class TargetCalculator:
+    """Calculates the matching test_targets and matching compile_targets."""
+
+    def __init__(
+        self,
+        files,
+        additional_compile_target_names,
+        test_target_names,
+        data,
+        target_list,
+        target_dicts,
+        toplevel_dir,
+        build_files,
+    ):
+        self._additional_compile_target_names = set(additional_compile_target_names)
+        self._test_target_names = set(test_target_names)
+        (
+            self._name_to_target,
+            self._changed_targets,
+            self._root_targets,
+        ) = _GenerateTargets(
+            data, target_list, target_dicts, toplevel_dir, frozenset(files), build_files
+        )
+        (
+            self._unqualified_mapping,
+            self.invalid_targets,
+        ) = _GetUnqualifiedToTargetMapping(
+            self._name_to_target, self._supplied_target_names_no_all()
+        )
+
+    def _supplied_target_names(self):
+        return self._additional_compile_target_names | self._test_target_names
+
+    def _supplied_target_names_no_all(self):
+        """Returns the supplied test targets without 'all'."""
+        result = self._supplied_target_names()
+        result.discard("all")
+        return result
+
+    def is_build_impacted(self):
+        """Returns true if the supplied files impact the build at all."""
+        return self._changed_targets
+
+    def find_matching_test_target_names(self):
+        """Returns the set of output test targets."""
+        assert self.is_build_impacted()
+        # Find the test targets first. 'all' is special cased to mean all the
+        # root targets. To deal with all the supplied |test_targets| are expanded
+        # to include the root targets during lookup. If any of the root targets
+        # match, we remove it and replace it with 'all'.
+        test_target_names_no_all = set(self._test_target_names)
+        test_target_names_no_all.discard("all")
+        test_targets_no_all = _LookupTargets(
+            test_target_names_no_all, self._unqualified_mapping
+        )
+        test_target_names_contains_all = "all" in self._test_target_names
+        if test_target_names_contains_all:
+            test_targets = [
+                x for x in (set(test_targets_no_all) | set(self._root_targets))
+            ]
+        else:
+            test_targets = [x for x in test_targets_no_all]
+        print("supplied test_targets")
+        for target_name in self._test_target_names:
+            print("\t", target_name)
+        print("found test_targets")
+        for target in test_targets:
+            print("\t", target.name)
+        print("searching for matching test targets")
+        matching_test_targets = _GetTargetsDependingOnMatchingTargets(test_targets)
+        matching_test_targets_contains_all = test_target_names_contains_all and set(
+            matching_test_targets
+        ) & set(self._root_targets)
+        if matching_test_targets_contains_all:
+            # Remove any of the targets for all that were not explicitly supplied,
+            # 'all' is subsequentely added to the matching names below.
+            matching_test_targets = [
+                x for x in (set(matching_test_targets) & set(test_targets_no_all))
+            ]
+        print("matched test_targets")
+        for target in matching_test_targets:
+            print("\t", target.name)
+        matching_target_names = [
+            gyp.common.ParseQualifiedTarget(target.name)[1]
+            for target in matching_test_targets
+        ]
+        if matching_test_targets_contains_all:
+            matching_target_names.append("all")
+            print("\tall")
+        return matching_target_names
+
+    def find_matching_compile_target_names(self):
+        """Returns the set of output compile targets."""
+        assert self.is_build_impacted()
+        # Compile targets are found by searching up from changed targets.
+        # Reset the visited status for _GetBuildTargets.
+        for target in self._name_to_target.values():
+            target.visited = False
+
+        supplied_targets = _LookupTargets(
+            self._supplied_target_names_no_all(), self._unqualified_mapping
+        )
+        if "all" in self._supplied_target_names():
+            supplied_targets = [
+                x for x in (set(supplied_targets) | set(self._root_targets))
+            ]
+        print("Supplied test_targets & compile_targets")
+        for target in supplied_targets:
+            print("\t", target.name)
+        print("Finding compile targets")
+        compile_targets = _GetCompileTargets(self._changed_targets, supplied_targets)
+        return [
+            gyp.common.ParseQualifiedTarget(target.name)[1]
+            for target in compile_targets
+        ]
+
+
+def GenerateOutput(target_list, target_dicts, data, params):
+    """Called by gyp as the final stage. Outputs results."""
+    config = Config()
+    try:
+        config.Init(params)
+
+        if not config.files:
+            raise Exception(
+                "Must specify files to analyze via config_path generator " "flag"
+            )
+
+        toplevel_dir = _ToGypPath(os.path.abspath(params["options"].toplevel_dir))
+        if debug:
+            print("toplevel_dir", toplevel_dir)
+
+        if _WasGypIncludeFileModified(params, config.files):
+            result_dict = {
+                "status": all_changed_string,
+                "test_targets": list(config.test_target_names),
+                "compile_targets": list(
+                    config.additional_compile_target_names | config.test_target_names
+                ),
+            }
+            _WriteOutput(params, **result_dict)
+            return
+
+        calculator = TargetCalculator(
+            config.files,
+            config.additional_compile_target_names,
+            config.test_target_names,
+            data,
+            target_list,
+            target_dicts,
+            toplevel_dir,
+            params["build_files"],
+        )
+        if not calculator.is_build_impacted():
+            result_dict = {
+                "status": no_dependency_string,
+                "test_targets": [],
+                "compile_targets": [],
+            }
+            if calculator.invalid_targets:
+                result_dict["invalid_targets"] = calculator.invalid_targets
+            _WriteOutput(params, **result_dict)
+            return
+
+        test_target_names = calculator.find_matching_test_target_names()
+        compile_target_names = calculator.find_matching_compile_target_names()
+        found_at_least_one_target = compile_target_names or test_target_names
+        result_dict = {
+            "test_targets": test_target_names,
+            "status": found_dependency_string
+            if found_at_least_one_target
+            else no_dependency_string,
+            "compile_targets": list(set(compile_target_names) | set(test_target_names)),
+        }
+        if calculator.invalid_targets:
+            result_dict["invalid_targets"] = calculator.invalid_targets
+        _WriteOutput(params, **result_dict)
+
+    except Exception as e:
+        _WriteOutput(params, error=str(e))
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/android.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/android.py
new file mode 100644
index 0000000..cdf1a48
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/android.py
@@ -0,0 +1,1173 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Notes:
+#
+# This generates makefiles suitable for inclusion into the Android build system
+# via an Android.mk file. It is based on make.py, the standard makefile
+# generator.
+#
+# The code below generates a separate .mk file for each target, but
+# all are sourced by the top-level GypAndroid.mk.  This means that all
+# variables in .mk-files clobber one another, and furthermore that any
+# variables set potentially clash with other Android build system variables.
+# Try to avoid setting global variables where possible.
+
+
+import gyp
+import gyp.common
+import gyp.generator.make as make  # Reuse global functions from make backend.
+import os
+import re
+import subprocess
+
+generator_default_variables = {
+    "OS": "android",
+    "EXECUTABLE_PREFIX": "",
+    "EXECUTABLE_SUFFIX": "",
+    "STATIC_LIB_PREFIX": "lib",
+    "SHARED_LIB_PREFIX": "lib",
+    "STATIC_LIB_SUFFIX": ".a",
+    "SHARED_LIB_SUFFIX": ".so",
+    "INTERMEDIATE_DIR": "$(gyp_intermediate_dir)",
+    "SHARED_INTERMEDIATE_DIR": "$(gyp_shared_intermediate_dir)",
+    "PRODUCT_DIR": "$(gyp_shared_intermediate_dir)",
+    "SHARED_LIB_DIR": "$(builddir)/lib.$(TOOLSET)",
+    "LIB_DIR": "$(obj).$(TOOLSET)",
+    "RULE_INPUT_ROOT": "%(INPUT_ROOT)s",  # This gets expanded by Python.
+    "RULE_INPUT_DIRNAME": "%(INPUT_DIRNAME)s",  # This gets expanded by Python.
+    "RULE_INPUT_PATH": "$(RULE_SOURCES)",
+    "RULE_INPUT_EXT": "$(suffix $<)",
+    "RULE_INPUT_NAME": "$(notdir $<)",
+    "CONFIGURATION_NAME": "$(GYP_CONFIGURATION)",
+}
+
+# Make supports multiple toolsets
+generator_supports_multiple_toolsets = True
+
+
+# Generator-specific gyp specs.
+generator_additional_non_configuration_keys = [
+    # Boolean to declare that this target does not want its name mangled.
+    "android_unmangled_name",
+    # Map of android build system variables to set.
+    "aosp_build_settings",
+]
+generator_additional_path_sections = []
+generator_extra_sources_for_rules = []
+
+
+ALL_MODULES_FOOTER = """\
+# "gyp_all_modules" is a concatenation of the "gyp_all_modules" targets from
+# all the included sub-makefiles. This is just here to clarify.
+gyp_all_modules:
+"""
+
+header = """\
+# This file is generated by gyp; do not edit.
+
+"""
+
+# Map gyp target types to Android module classes.
+MODULE_CLASSES = {
+    "static_library": "STATIC_LIBRARIES",
+    "shared_library": "SHARED_LIBRARIES",
+    "executable": "EXECUTABLES",
+}
+
+
+def IsCPPExtension(ext):
+    return make.COMPILABLE_EXTENSIONS.get(ext) == "cxx"
+
+
+def Sourceify(path):
+    """Convert a path to its source directory form. The Android backend does not
+    support options.generator_output, so this function is a noop."""
+    return path
+
+
+# Map from qualified target to path to output.
+# For Android, the target of these maps is a tuple ('static', 'modulename'),
+# ('dynamic', 'modulename'), or ('path', 'some/path') instead of a string,
+# since we link by module.
+target_outputs = {}
+# Map from qualified target to any linkable output.  A subset
+# of target_outputs.  E.g. when mybinary depends on liba, we want to
+# include liba in the linker line; when otherbinary depends on
+# mybinary, we just want to build mybinary first.
+target_link_deps = {}
+
+
+class AndroidMkWriter:
+    """AndroidMkWriter packages up the writing of one target-specific Android.mk.
+
+    Its only real entry point is Write(), and is mostly used for namespacing.
+    """
+
+    def __init__(self, android_top_dir):
+        self.android_top_dir = android_top_dir
+
+    def Write(
+        self,
+        qualified_target,
+        relative_target,
+        base_path,
+        output_filename,
+        spec,
+        configs,
+        part_of_all,
+        write_alias_target,
+        sdk_version,
+    ):
+        """The main entry point: writes a .mk file for a single target.
+
+        Arguments:
+          qualified_target: target we're generating
+          relative_target: qualified target name relative to the root
+          base_path: path relative to source root we're building in, used to resolve
+                     target-relative paths
+          output_filename: output .mk file name to write
+          spec, configs: gyp info
+          part_of_all: flag indicating this target is part of 'all'
+          write_alias_target: flag indicating whether to create short aliases for
+                              this target
+          sdk_version: what to emit for LOCAL_SDK_VERSION in output
+        """
+        gyp.common.EnsureDirExists(output_filename)
+
+        self.fp = open(output_filename, "w")
+
+        self.fp.write(header)
+
+        self.qualified_target = qualified_target
+        self.relative_target = relative_target
+        self.path = base_path
+        self.target = spec["target_name"]
+        self.type = spec["type"]
+        self.toolset = spec["toolset"]
+
+        deps, link_deps = self.ComputeDeps(spec)
+
+        # Some of the generation below can add extra output, sources, or
+        # link dependencies.  All of the out params of the functions that
+        # follow use names like extra_foo.
+        extra_outputs = []
+        extra_sources = []
+
+        self.android_class = MODULE_CLASSES.get(self.type, "GYP")
+        self.android_module = self.ComputeAndroidModule(spec)
+        (self.android_stem, self.android_suffix) = self.ComputeOutputParts(spec)
+        self.output = self.output_binary = self.ComputeOutput(spec)
+
+        # Standard header.
+        self.WriteLn("include $(CLEAR_VARS)\n")
+
+        # Module class and name.
+        self.WriteLn("LOCAL_MODULE_CLASS := " + self.android_class)
+        self.WriteLn("LOCAL_MODULE := " + self.android_module)
+        # Only emit LOCAL_MODULE_STEM if it's different to LOCAL_MODULE.
+        # The library module classes fail if the stem is set. ComputeOutputParts
+        # makes sure that stem == modulename in these cases.
+        if self.android_stem != self.android_module:
+            self.WriteLn("LOCAL_MODULE_STEM := " + self.android_stem)
+        self.WriteLn("LOCAL_MODULE_SUFFIX := " + self.android_suffix)
+        if self.toolset == "host":
+            self.WriteLn("LOCAL_IS_HOST_MODULE := true")
+            self.WriteLn("LOCAL_MULTILIB := $(GYP_HOST_MULTILIB)")
+        elif sdk_version > 0:
+            self.WriteLn(
+                "LOCAL_MODULE_TARGET_ARCH := " "$(TARGET_$(GYP_VAR_PREFIX)ARCH)"
+            )
+            self.WriteLn("LOCAL_SDK_VERSION := %s" % sdk_version)
+
+        # Grab output directories; needed for Actions and Rules.
+        if self.toolset == "host":
+            self.WriteLn(
+                "gyp_intermediate_dir := "
+                "$(call local-intermediates-dir,,$(GYP_HOST_VAR_PREFIX))"
+            )
+        else:
+            self.WriteLn(
+                "gyp_intermediate_dir := "
+                "$(call local-intermediates-dir,,$(GYP_VAR_PREFIX))"
+            )
+        self.WriteLn(
+            "gyp_shared_intermediate_dir := "
+            "$(call intermediates-dir-for,GYP,shared,,,$(GYP_VAR_PREFIX))"
+        )
+        self.WriteLn()
+
+        # List files this target depends on so that actions/rules/copies/sources
+        # can depend on the list.
+        # TODO: doesn't pull in things through transitive link deps; needed?
+        target_dependencies = [x[1] for x in deps if x[0] == "path"]
+        self.WriteLn("# Make sure our deps are built first.")
+        self.WriteList(
+            target_dependencies, "GYP_TARGET_DEPENDENCIES", local_pathify=True
+        )
+
+        # Actions must come first, since they can generate more OBJs for use below.
+        if "actions" in spec:
+            self.WriteActions(spec["actions"], extra_sources, extra_outputs)
+
+        # Rules must be early like actions.
+        if "rules" in spec:
+            self.WriteRules(spec["rules"], extra_sources, extra_outputs)
+
+        if "copies" in spec:
+            self.WriteCopies(spec["copies"], extra_outputs)
+
+        # GYP generated outputs.
+        self.WriteList(extra_outputs, "GYP_GENERATED_OUTPUTS", local_pathify=True)
+
+        # Set LOCAL_ADDITIONAL_DEPENDENCIES so that Android's build rules depend
+        # on both our dependency targets and our generated files.
+        self.WriteLn("# Make sure our deps and generated files are built first.")
+        self.WriteLn(
+            "LOCAL_ADDITIONAL_DEPENDENCIES := $(GYP_TARGET_DEPENDENCIES) "
+            "$(GYP_GENERATED_OUTPUTS)"
+        )
+        self.WriteLn()
+
+        # Sources.
+        if spec.get("sources", []) or extra_sources:
+            self.WriteSources(spec, configs, extra_sources)
+
+        self.WriteTarget(
+            spec, configs, deps, link_deps, part_of_all, write_alias_target
+        )
+
+        # Update global list of target outputs, used in dependency tracking.
+        target_outputs[qualified_target] = ("path", self.output_binary)
+
+        # Update global list of link dependencies.
+        if self.type == "static_library":
+            target_link_deps[qualified_target] = ("static", self.android_module)
+        elif self.type == "shared_library":
+            target_link_deps[qualified_target] = ("shared", self.android_module)
+
+        self.fp.close()
+        return self.android_module
+
+    def WriteActions(self, actions, extra_sources, extra_outputs):
+        """Write Makefile code for any 'actions' from the gyp input.
+
+        extra_sources: a list that will be filled in with newly generated source
+                       files, if any
+        extra_outputs: a list that will be filled in with any outputs of these
+                       actions (used to make other pieces dependent on these
+                       actions)
+        """
+        for action in actions:
+            name = make.StringToMakefileVariable(
+                "{}_{}".format(self.relative_target, action["action_name"])
+            )
+            self.WriteLn('### Rules for action "%s":' % action["action_name"])
+            inputs = action["inputs"]
+            outputs = action["outputs"]
+
+            # Build up a list of outputs.
+            # Collect the output dirs we'll need.
+            dirs = set()
+            for out in outputs:
+                if not out.startswith("$"):
+                    print(
+                        'WARNING: Action for target "%s" writes output to local path '
+                        '"%s".' % (self.target, out)
+                    )
+                dir = os.path.split(out)[0]
+                if dir:
+                    dirs.add(dir)
+            if int(action.get("process_outputs_as_sources", False)):
+                extra_sources += outputs
+
+            # Prepare the actual command.
+            command = gyp.common.EncodePOSIXShellList(action["action"])
+            if "message" in action:
+                quiet_cmd = "Gyp action: %s ($@)" % action["message"]
+            else:
+                quiet_cmd = "Gyp action: %s ($@)" % name
+            if len(dirs) > 0:
+                command = "mkdir -p %s" % " ".join(dirs) + "; " + command
+
+            cd_action = "cd $(gyp_local_path)/%s; " % self.path
+            command = cd_action + command
+
+            # The makefile rules are all relative to the top dir, but the gyp actions
+            # are defined relative to their containing dir.  This replaces the gyp_*
+            # variables for the action rule with an absolute version so that the
+            # output goes in the right place.
+            # Only write the gyp_* rules for the "primary" output (:1);
+            # it's superfluous for the "extra outputs", and this avoids accidentally
+            # writing duplicate dummy rules for those outputs.
+            main_output = make.QuoteSpaces(self.LocalPathify(outputs[0]))
+            self.WriteLn("%s: gyp_local_path := $(LOCAL_PATH)" % main_output)
+            self.WriteLn("%s: gyp_var_prefix := $(GYP_VAR_PREFIX)" % main_output)
+            self.WriteLn(
+                "%s: gyp_intermediate_dir := "
+                "$(abspath $(gyp_intermediate_dir))" % main_output
+            )
+            self.WriteLn(
+                "%s: gyp_shared_intermediate_dir := "
+                "$(abspath $(gyp_shared_intermediate_dir))" % main_output
+            )
+
+            # Android's envsetup.sh adds a number of directories to the path including
+            # the built host binary directory. This causes actions/rules invoked by
+            # gyp to sometimes use these instead of system versions, e.g. bison.
+            # The built host binaries may not be suitable, and can cause errors.
+            # So, we remove them from the PATH using the ANDROID_BUILD_PATHS variable
+            # set by envsetup.
+            self.WriteLn(
+                "%s: export PATH := $(subst $(ANDROID_BUILD_PATHS),,$(PATH))"
+                % main_output
+            )
+
+            # Don't allow spaces in input/output filenames, but make an exception for
+            # filenames which start with '$(' since it's okay for there to be spaces
+            # inside of make function/macro invocations.
+            for input in inputs:
+                if not input.startswith("$(") and " " in input:
+                    raise gyp.common.GypError(
+                        'Action input filename "%s" in target %s contains a space'
+                        % (input, self.target)
+                    )
+            for output in outputs:
+                if not output.startswith("$(") and " " in output:
+                    raise gyp.common.GypError(
+                        'Action output filename "%s" in target %s contains a space'
+                        % (output, self.target)
+                    )
+
+            self.WriteLn(
+                "%s: %s $(GYP_TARGET_DEPENDENCIES)"
+                % (main_output, " ".join(map(self.LocalPathify, inputs)))
+            )
+            self.WriteLn('\t@echo "%s"' % quiet_cmd)
+            self.WriteLn("\t$(hide)%s\n" % command)
+            for output in outputs[1:]:
+                # Make each output depend on the main output, with an empty command
+                # to force make to notice that the mtime has changed.
+                self.WriteLn(f"{self.LocalPathify(output)}: {main_output} ;")
+
+            extra_outputs += outputs
+            self.WriteLn()
+
+        self.WriteLn()
+
+    def WriteRules(self, rules, extra_sources, extra_outputs):
+        """Write Makefile code for any 'rules' from the gyp input.
+
+        extra_sources: a list that will be filled in with newly generated source
+                       files, if any
+        extra_outputs: a list that will be filled in with any outputs of these
+                       rules (used to make other pieces dependent on these rules)
+        """
+        if len(rules) == 0:
+            return
+
+        for rule in rules:
+            if len(rule.get("rule_sources", [])) == 0:
+                continue
+            name = make.StringToMakefileVariable(
+                "{}_{}".format(self.relative_target, rule["rule_name"])
+            )
+            self.WriteLn('\n### Generated for rule "%s":' % name)
+            self.WriteLn('# "%s":' % rule)
+
+            inputs = rule.get("inputs")
+            for rule_source in rule.get("rule_sources", []):
+                (rule_source_dirname, rule_source_basename) = os.path.split(rule_source)
+                (rule_source_root, rule_source_ext) = os.path.splitext(
+                    rule_source_basename
+                )
+
+                outputs = [
+                    self.ExpandInputRoot(out, rule_source_root, rule_source_dirname)
+                    for out in rule["outputs"]
+                ]
+
+                dirs = set()
+                for out in outputs:
+                    if not out.startswith("$"):
+                        print(
+                            "WARNING: Rule for target %s writes output to local path %s"
+                            % (self.target, out)
+                        )
+                    dir = os.path.dirname(out)
+                    if dir:
+                        dirs.add(dir)
+                extra_outputs += outputs
+                if int(rule.get("process_outputs_as_sources", False)):
+                    extra_sources.extend(outputs)
+
+                components = []
+                for component in rule["action"]:
+                    component = self.ExpandInputRoot(
+                        component, rule_source_root, rule_source_dirname
+                    )
+                    if "$(RULE_SOURCES)" in component:
+                        component = component.replace("$(RULE_SOURCES)", rule_source)
+                    components.append(component)
+
+                command = gyp.common.EncodePOSIXShellList(components)
+                cd_action = "cd $(gyp_local_path)/%s; " % self.path
+                command = cd_action + command
+                if dirs:
+                    command = "mkdir -p %s" % " ".join(dirs) + "; " + command
+
+                # We set up a rule to build the first output, and then set up
+                # a rule for each additional output to depend on the first.
+                outputs = map(self.LocalPathify, outputs)
+                main_output = outputs[0]
+                self.WriteLn("%s: gyp_local_path := $(LOCAL_PATH)" % main_output)
+                self.WriteLn("%s: gyp_var_prefix := $(GYP_VAR_PREFIX)" % main_output)
+                self.WriteLn(
+                    "%s: gyp_intermediate_dir := "
+                    "$(abspath $(gyp_intermediate_dir))" % main_output
+                )
+                self.WriteLn(
+                    "%s: gyp_shared_intermediate_dir := "
+                    "$(abspath $(gyp_shared_intermediate_dir))" % main_output
+                )
+
+                # See explanation in WriteActions.
+                self.WriteLn(
+                    "%s: export PATH := "
+                    "$(subst $(ANDROID_BUILD_PATHS),,$(PATH))" % main_output
+                )
+
+                main_output_deps = self.LocalPathify(rule_source)
+                if inputs:
+                    main_output_deps += " "
+                    main_output_deps += " ".join([self.LocalPathify(f) for f in inputs])
+
+                self.WriteLn(
+                    "%s: %s $(GYP_TARGET_DEPENDENCIES)"
+                    % (main_output, main_output_deps)
+                )
+                self.WriteLn("\t%s\n" % command)
+                for output in outputs[1:]:
+                    # Make each output depend on the main output, with an empty command
+                    # to force make to notice that the mtime has changed.
+                    self.WriteLn(f"{output}: {main_output} ;")
+                self.WriteLn()
+
+        self.WriteLn()
+
+    def WriteCopies(self, copies, extra_outputs):
+        """Write Makefile code for any 'copies' from the gyp input.
+
+        extra_outputs: a list that will be filled in with any outputs of this action
+                       (used to make other pieces dependent on this action)
+        """
+        self.WriteLn("### Generated for copy rule.")
+
+        variable = make.StringToMakefileVariable(self.relative_target + "_copies")
+        outputs = []
+        for copy in copies:
+            for path in copy["files"]:
+                # The Android build system does not allow generation of files into the
+                # source tree. The destination should start with a variable, which will
+                # typically be $(gyp_intermediate_dir) or
+                # $(gyp_shared_intermediate_dir). Note that we can't use an assertion
+                # because some of the gyp tests depend on this.
+                if not copy["destination"].startswith("$"):
+                    print(
+                        "WARNING: Copy rule for target %s writes output to "
+                        "local path %s" % (self.target, copy["destination"])
+                    )
+
+                # LocalPathify() calls normpath, stripping trailing slashes.
+                path = Sourceify(self.LocalPathify(path))
+                filename = os.path.split(path)[1]
+                output = Sourceify(
+                    self.LocalPathify(os.path.join(copy["destination"], filename))
+                )
+
+                self.WriteLn(f"{output}: {path} $(GYP_TARGET_DEPENDENCIES) | $(ACP)")
+                self.WriteLn("\t@echo Copying: $@")
+                self.WriteLn("\t$(hide) mkdir -p $(dir $@)")
+                self.WriteLn("\t$(hide) $(ACP) -rpf $< $@")
+                self.WriteLn()
+                outputs.append(output)
+        self.WriteLn(
+            "{} = {}".format(variable, " ".join(map(make.QuoteSpaces, outputs)))
+        )
+        extra_outputs.append("$(%s)" % variable)
+        self.WriteLn()
+
+    def WriteSourceFlags(self, spec, configs):
+        """Write out the flags and include paths used to compile source files for
+        the current target.
+
+        Args:
+          spec, configs: input from gyp.
+        """
+        for configname, config in sorted(configs.items()):
+            extracted_includes = []
+
+            self.WriteLn("\n# Flags passed to both C and C++ files.")
+            cflags, includes_from_cflags = self.ExtractIncludesFromCFlags(
+                config.get("cflags", []) + config.get("cflags_c", [])
+            )
+            extracted_includes.extend(includes_from_cflags)
+            self.WriteList(cflags, "MY_CFLAGS_%s" % configname)
+
+            self.WriteList(
+                config.get("defines"),
+                "MY_DEFS_%s" % configname,
+                prefix="-D",
+                quoter=make.EscapeCppDefine,
+            )
+
+            self.WriteLn("\n# Include paths placed before CFLAGS/CPPFLAGS")
+            includes = list(config.get("include_dirs", []))
+            includes.extend(extracted_includes)
+            includes = map(Sourceify, map(self.LocalPathify, includes))
+            includes = self.NormalizeIncludePaths(includes)
+            self.WriteList(includes, "LOCAL_C_INCLUDES_%s" % configname)
+
+            self.WriteLn("\n# Flags passed to only C++ (and not C) files.")
+            self.WriteList(config.get("cflags_cc"), "LOCAL_CPPFLAGS_%s" % configname)
+
+        self.WriteLn(
+            "\nLOCAL_CFLAGS := $(MY_CFLAGS_$(GYP_CONFIGURATION)) "
+            "$(MY_DEFS_$(GYP_CONFIGURATION))"
+        )
+        # Undefine ANDROID for host modules
+        # TODO: the source code should not use macro ANDROID to tell if it's host
+        # or target module.
+        if self.toolset == "host":
+            self.WriteLn("# Undefine ANDROID for host modules")
+            self.WriteLn("LOCAL_CFLAGS += -UANDROID")
+        self.WriteLn(
+            "LOCAL_C_INCLUDES := $(GYP_COPIED_SOURCE_ORIGIN_DIRS) "
+            "$(LOCAL_C_INCLUDES_$(GYP_CONFIGURATION))"
+        )
+        self.WriteLn("LOCAL_CPPFLAGS := $(LOCAL_CPPFLAGS_$(GYP_CONFIGURATION))")
+        # Android uses separate flags for assembly file invocations, but gyp expects
+        # the same CFLAGS to be applied:
+        self.WriteLn("LOCAL_ASFLAGS := $(LOCAL_CFLAGS)")
+
+    def WriteSources(self, spec, configs, extra_sources):
+        """Write Makefile code for any 'sources' from the gyp input.
+        These are source files necessary to build the current target.
+        We need to handle shared_intermediate directory source files as
+        a special case by copying them to the intermediate directory and
+        treating them as a generated sources. Otherwise the Android build
+        rules won't pick them up.
+
+        Args:
+          spec, configs: input from gyp.
+          extra_sources: Sources generated from Actions or Rules.
+        """
+        sources = filter(make.Compilable, spec.get("sources", []))
+        generated_not_sources = [x for x in extra_sources if not make.Compilable(x)]
+        extra_sources = filter(make.Compilable, extra_sources)
+
+        # Determine and output the C++ extension used by these sources.
+        # We simply find the first C++ file and use that extension.
+        all_sources = sources + extra_sources
+        local_cpp_extension = ".cpp"
+        for source in all_sources:
+            (root, ext) = os.path.splitext(source)
+            if IsCPPExtension(ext):
+                local_cpp_extension = ext
+                break
+        if local_cpp_extension != ".cpp":
+            self.WriteLn("LOCAL_CPP_EXTENSION := %s" % local_cpp_extension)
+
+        # We need to move any non-generated sources that are coming from the
+        # shared intermediate directory out of LOCAL_SRC_FILES and put them
+        # into LOCAL_GENERATED_SOURCES. We also need to move over any C++ files
+        # that don't match our local_cpp_extension, since Android will only
+        # generate Makefile rules for a single LOCAL_CPP_EXTENSION.
+        local_files = []
+        for source in sources:
+            (root, ext) = os.path.splitext(source)
+            if "$(gyp_shared_intermediate_dir)" in source:
+                extra_sources.append(source)
+            elif "$(gyp_intermediate_dir)" in source:
+                extra_sources.append(source)
+            elif IsCPPExtension(ext) and ext != local_cpp_extension:
+                extra_sources.append(source)
+            else:
+                local_files.append(os.path.normpath(os.path.join(self.path, source)))
+
+        # For any generated source, if it is coming from the shared intermediate
+        # directory then we add a Make rule to copy them to the local intermediate
+        # directory first. This is because the Android LOCAL_GENERATED_SOURCES
+        # must be in the local module intermediate directory for the compile rules
+        # to work properly. If the file has the wrong C++ extension, then we add
+        # a rule to copy that to intermediates and use the new version.
+        final_generated_sources = []
+        # If a source file gets copied, we still need to add the original source
+        # directory as header search path, for GCC searches headers in the
+        # directory that contains the source file by default.
+        origin_src_dirs = []
+        for source in extra_sources:
+            local_file = source
+            if "$(gyp_intermediate_dir)/" not in local_file:
+                basename = os.path.basename(local_file)
+                local_file = "$(gyp_intermediate_dir)/" + basename
+            (root, ext) = os.path.splitext(local_file)
+            if IsCPPExtension(ext) and ext != local_cpp_extension:
+                local_file = root + local_cpp_extension
+            if local_file != source:
+                self.WriteLn(f"{local_file}: {self.LocalPathify(source)}")
+                self.WriteLn("\tmkdir -p $(@D); cp $< $@")
+                origin_src_dirs.append(os.path.dirname(source))
+            final_generated_sources.append(local_file)
+
+        # We add back in all of the non-compilable stuff to make sure that the
+        # make rules have dependencies on them.
+        final_generated_sources.extend(generated_not_sources)
+        self.WriteList(final_generated_sources, "LOCAL_GENERATED_SOURCES")
+
+        origin_src_dirs = gyp.common.uniquer(origin_src_dirs)
+        origin_src_dirs = map(Sourceify, map(self.LocalPathify, origin_src_dirs))
+        self.WriteList(origin_src_dirs, "GYP_COPIED_SOURCE_ORIGIN_DIRS")
+
+        self.WriteList(local_files, "LOCAL_SRC_FILES")
+
+        # Write out the flags used to compile the source; this must be done last
+        # so that GYP_COPIED_SOURCE_ORIGIN_DIRS can be used as an include path.
+        self.WriteSourceFlags(spec, configs)
+
+    def ComputeAndroidModule(self, spec):
+        """Return the Android module name used for a gyp spec.
+
+        We use the complete qualified target name to avoid collisions between
+        duplicate targets in different directories. We also add a suffix to
+        distinguish gyp-generated module names.
+        """
+
+        if int(spec.get("android_unmangled_name", 0)):
+            assert self.type != "shared_library" or self.target.startswith("lib")
+            return self.target
+
+        if self.type == "shared_library":
+            # For reasons of convention, the Android build system requires that all
+            # shared library modules are named 'libfoo' when generating -l flags.
+            prefix = "lib_"
+        else:
+            prefix = ""
+
+        if spec["toolset"] == "host":
+            suffix = "_$(TARGET_$(GYP_VAR_PREFIX)ARCH)_host_gyp"
+        else:
+            suffix = "_gyp"
+
+        if self.path:
+            middle = make.StringToMakefileVariable(f"{self.path}_{self.target}")
+        else:
+            middle = make.StringToMakefileVariable(self.target)
+
+        return "".join([prefix, middle, suffix])
+
+    def ComputeOutputParts(self, spec):
+        """Return the 'output basename' of a gyp spec, split into filename + ext.
+
+        Android libraries must be named the same thing as their module name,
+        otherwise the linker can't find them, so product_name and so on must be
+        ignored if we are building a library, and the "lib" prepending is
+        not done for Android.
+        """
+        assert self.type != "loadable_module"  # TODO: not supported?
+
+        target = spec["target_name"]
+        target_prefix = ""
+        target_ext = ""
+        if self.type == "static_library":
+            target = self.ComputeAndroidModule(spec)
+            target_ext = ".a"
+        elif self.type == "shared_library":
+            target = self.ComputeAndroidModule(spec)
+            target_ext = ".so"
+        elif self.type == "none":
+            target_ext = ".stamp"
+        elif self.type != "executable":
+            print(
+                "ERROR: What output file should be generated?",
+                "type",
+                self.type,
+                "target",
+                target,
+            )
+
+        if self.type != "static_library" and self.type != "shared_library":
+            target_prefix = spec.get("product_prefix", target_prefix)
+            target = spec.get("product_name", target)
+            product_ext = spec.get("product_extension")
+            if product_ext:
+                target_ext = "." + product_ext
+
+        target_stem = target_prefix + target
+        return (target_stem, target_ext)
+
+    def ComputeOutputBasename(self, spec):
+        """Return the 'output basename' of a gyp spec.
+
+        E.g., the loadable module 'foobar' in directory 'baz' will produce
+          'libfoobar.so'
+        """
+        return "".join(self.ComputeOutputParts(spec))
+
+    def ComputeOutput(self, spec):
+        """Return the 'output' (full output path) of a gyp spec.
+
+        E.g., the loadable module 'foobar' in directory 'baz' will produce
+          '$(obj)/baz/libfoobar.so'
+        """
+        if self.type == "executable":
+            # We install host executables into shared_intermediate_dir so they can be
+            # run by gyp rules that refer to PRODUCT_DIR.
+            path = "$(gyp_shared_intermediate_dir)"
+        elif self.type == "shared_library":
+            if self.toolset == "host":
+                path = "$($(GYP_HOST_VAR_PREFIX)HOST_OUT_INTERMEDIATE_LIBRARIES)"
+            else:
+                path = "$($(GYP_VAR_PREFIX)TARGET_OUT_INTERMEDIATE_LIBRARIES)"
+        else:
+            # Other targets just get built into their intermediate dir.
+            if self.toolset == "host":
+                path = (
+                    "$(call intermediates-dir-for,%s,%s,true,,"
+                    "$(GYP_HOST_VAR_PREFIX))"
+                    % (self.android_class, self.android_module)
+                )
+            else:
+                path = "$(call intermediates-dir-for,{},{},,,$(GYP_VAR_PREFIX))".format(
+                    self.android_class,
+                    self.android_module,
+                )
+
+        assert spec.get("product_dir") is None  # TODO: not supported?
+        return os.path.join(path, self.ComputeOutputBasename(spec))
+
+    def NormalizeIncludePaths(self, include_paths):
+        """Normalize include_paths.
+        Convert absolute paths to relative to the Android top directory.
+
+        Args:
+          include_paths: A list of unprocessed include paths.
+        Returns:
+          A list of normalized include paths.
+        """
+        normalized = []
+        for path in include_paths:
+            if path[0] == "/":
+                path = gyp.common.RelativePath(path, self.android_top_dir)
+            normalized.append(path)
+        return normalized
+
+    def ExtractIncludesFromCFlags(self, cflags):
+        """Extract includes "-I..." out from cflags
+
+        Args:
+          cflags: A list of compiler flags, which may be mixed with "-I.."
+        Returns:
+          A tuple of lists: (clean_clfags, include_paths). "-I.." is trimmed.
+        """
+        clean_cflags = []
+        include_paths = []
+        for flag in cflags:
+            if flag.startswith("-I"):
+                include_paths.append(flag[2:])
+            else:
+                clean_cflags.append(flag)
+
+        return (clean_cflags, include_paths)
+
+    def FilterLibraries(self, libraries):
+        """Filter the 'libraries' key to separate things that shouldn't be ldflags.
+
+        Library entries that look like filenames should be converted to android
+        module names instead of being passed to the linker as flags.
+
+        Args:
+          libraries: the value of spec.get('libraries')
+        Returns:
+          A tuple (static_lib_modules, dynamic_lib_modules, ldflags)
+        """
+        static_lib_modules = []
+        dynamic_lib_modules = []
+        ldflags = []
+        for libs in libraries:
+            # Libs can have multiple words.
+            for lib in libs.split():
+                # Filter the system libraries, which are added by default by the Android
+                # build system.
+                if (
+                    lib == "-lc"
+                    or lib == "-lstdc++"
+                    or lib == "-lm"
+                    or lib.endswith("libgcc.a")
+                ):
+                    continue
+                match = re.search(r"([^/]+)\.a$", lib)
+                if match:
+                    static_lib_modules.append(match.group(1))
+                    continue
+                match = re.search(r"([^/]+)\.so$", lib)
+                if match:
+                    dynamic_lib_modules.append(match.group(1))
+                    continue
+                if lib.startswith("-l"):
+                    ldflags.append(lib)
+        return (static_lib_modules, dynamic_lib_modules, ldflags)
+
+    def ComputeDeps(self, spec):
+        """Compute the dependencies of a gyp spec.
+
+        Returns a tuple (deps, link_deps), where each is a list of
+        filenames that will need to be put in front of make for either
+        building (deps) or linking (link_deps).
+        """
+        deps = []
+        link_deps = []
+        if "dependencies" in spec:
+            deps.extend(
+                [
+                    target_outputs[dep]
+                    for dep in spec["dependencies"]
+                    if target_outputs[dep]
+                ]
+            )
+            for dep in spec["dependencies"]:
+                if dep in target_link_deps:
+                    link_deps.append(target_link_deps[dep])
+            deps.extend(link_deps)
+        return (gyp.common.uniquer(deps), gyp.common.uniquer(link_deps))
+
+    def WriteTargetFlags(self, spec, configs, link_deps):
+        """Write Makefile code to specify the link flags and library dependencies.
+
+        spec, configs: input from gyp.
+        link_deps: link dependency list; see ComputeDeps()
+        """
+        # Libraries (i.e. -lfoo)
+        # These must be included even for static libraries as some of them provide
+        # implicit include paths through the build system.
+        libraries = gyp.common.uniquer(spec.get("libraries", []))
+        static_libs, dynamic_libs, ldflags_libs = self.FilterLibraries(libraries)
+
+        if self.type != "static_library":
+            for configname, config in sorted(configs.items()):
+                ldflags = list(config.get("ldflags", []))
+                self.WriteLn("")
+                self.WriteList(ldflags, "LOCAL_LDFLAGS_%s" % configname)
+            self.WriteList(ldflags_libs, "LOCAL_GYP_LIBS")
+            self.WriteLn(
+                "LOCAL_LDFLAGS := $(LOCAL_LDFLAGS_$(GYP_CONFIGURATION)) "
+                "$(LOCAL_GYP_LIBS)"
+            )
+
+        # Link dependencies (i.e. other gyp targets this target depends on)
+        # These need not be included for static libraries as within the gyp build
+        # we do not use the implicit include path mechanism.
+        if self.type != "static_library":
+            static_link_deps = [x[1] for x in link_deps if x[0] == "static"]
+            shared_link_deps = [x[1] for x in link_deps if x[0] == "shared"]
+        else:
+            static_link_deps = []
+            shared_link_deps = []
+
+        # Only write the lists if they are non-empty.
+        if static_libs or static_link_deps:
+            self.WriteLn("")
+            self.WriteList(static_libs + static_link_deps, "LOCAL_STATIC_LIBRARIES")
+            self.WriteLn("# Enable grouping to fix circular references")
+            self.WriteLn("LOCAL_GROUP_STATIC_LIBRARIES := true")
+        if dynamic_libs or shared_link_deps:
+            self.WriteLn("")
+            self.WriteList(dynamic_libs + shared_link_deps, "LOCAL_SHARED_LIBRARIES")
+
+    def WriteTarget(
+        self, spec, configs, deps, link_deps, part_of_all, write_alias_target
+    ):
+        """Write Makefile code to produce the final target of the gyp spec.
+
+        spec, configs: input from gyp.
+        deps, link_deps: dependency lists; see ComputeDeps()
+        part_of_all: flag indicating this target is part of 'all'
+        write_alias_target: flag indicating whether to create short aliases for this
+                            target
+        """
+        self.WriteLn("### Rules for final target.")
+
+        if self.type != "none":
+            self.WriteTargetFlags(spec, configs, link_deps)
+
+        settings = spec.get("aosp_build_settings", {})
+        if settings:
+            self.WriteLn("### Set directly by aosp_build_settings.")
+            for k, v in settings.items():
+                if isinstance(v, list):
+                    self.WriteList(v, k)
+                else:
+                    self.WriteLn(f"{k} := {make.QuoteIfNecessary(v)}")
+            self.WriteLn("")
+
+        # Add to the set of targets which represent the gyp 'all' target. We use the
+        # name 'gyp_all_modules' as the Android build system doesn't allow the use
+        # of the Make target 'all' and because 'all_modules' is the equivalent of
+        # the Make target 'all' on Android.
+        if part_of_all and write_alias_target:
+            self.WriteLn('# Add target alias to "gyp_all_modules" target.')
+            self.WriteLn(".PHONY: gyp_all_modules")
+            self.WriteLn("gyp_all_modules: %s" % self.android_module)
+            self.WriteLn("")
+
+        # Add an alias from the gyp target name to the Android module name. This
+        # simplifies manual builds of the target, and is required by the test
+        # framework.
+        if self.target != self.android_module and write_alias_target:
+            self.WriteLn("# Alias gyp target name.")
+            self.WriteLn(".PHONY: %s" % self.target)
+            self.WriteLn(f"{self.target}: {self.android_module}")
+            self.WriteLn("")
+
+        # Add the command to trigger build of the target type depending
+        # on the toolset. Ex: BUILD_STATIC_LIBRARY vs. BUILD_HOST_STATIC_LIBRARY
+        # NOTE: This has to come last!
+        modifier = ""
+        if self.toolset == "host":
+            modifier = "HOST_"
+        if self.type == "static_library":
+            self.WriteLn("include $(BUILD_%sSTATIC_LIBRARY)" % modifier)
+        elif self.type == "shared_library":
+            self.WriteLn("LOCAL_PRELINK_MODULE := false")
+            self.WriteLn("include $(BUILD_%sSHARED_LIBRARY)" % modifier)
+        elif self.type == "executable":
+            self.WriteLn("LOCAL_CXX_STL := libc++_static")
+            # Executables are for build and test purposes only, so they're installed
+            # to a directory that doesn't get included in the system image.
+            self.WriteLn("LOCAL_MODULE_PATH := $(gyp_shared_intermediate_dir)")
+            self.WriteLn("include $(BUILD_%sEXECUTABLE)" % modifier)
+        else:
+            self.WriteLn("LOCAL_MODULE_PATH := $(PRODUCT_OUT)/gyp_stamp")
+            self.WriteLn("LOCAL_UNINSTALLABLE_MODULE := true")
+            if self.toolset == "target":
+                self.WriteLn("LOCAL_2ND_ARCH_VAR_PREFIX := $(GYP_VAR_PREFIX)")
+            else:
+                self.WriteLn("LOCAL_2ND_ARCH_VAR_PREFIX := $(GYP_HOST_VAR_PREFIX)")
+            self.WriteLn()
+            self.WriteLn("include $(BUILD_SYSTEM)/base_rules.mk")
+            self.WriteLn()
+            self.WriteLn("$(LOCAL_BUILT_MODULE): $(LOCAL_ADDITIONAL_DEPENDENCIES)")
+            self.WriteLn('\t$(hide) echo "Gyp timestamp: $@"')
+            self.WriteLn("\t$(hide) mkdir -p $(dir $@)")
+            self.WriteLn("\t$(hide) touch $@")
+            self.WriteLn()
+            self.WriteLn("LOCAL_2ND_ARCH_VAR_PREFIX :=")
+
+    def WriteList(
+        self,
+        value_list,
+        variable=None,
+        prefix="",
+        quoter=make.QuoteIfNecessary,
+        local_pathify=False,
+    ):
+        """Write a variable definition that is a list of values.
+
+        E.g. WriteList(['a','b'], 'foo', prefix='blah') writes out
+             foo = blaha blahb
+        but in a pretty-printed style.
+        """
+        values = ""
+        if value_list:
+            value_list = [quoter(prefix + value) for value in value_list]
+            if local_pathify:
+                value_list = [self.LocalPathify(value) for value in value_list]
+            values = " \\\n\t" + " \\\n\t".join(value_list)
+        self.fp.write(f"{variable} :={values}\n\n")
+
+    def WriteLn(self, text=""):
+        self.fp.write(text + "\n")
+
+    def LocalPathify(self, path):
+        """Convert a subdirectory-relative path into a normalized path which starts
+        with the make variable $(LOCAL_PATH) (i.e. the top of the project tree).
+        Absolute paths, or paths that contain variables, are just normalized."""
+        if "$(" in path or os.path.isabs(path):
+            # path is not a file in the project tree in this case, but calling
+            # normpath is still important for trimming trailing slashes.
+            return os.path.normpath(path)
+        local_path = os.path.join("$(LOCAL_PATH)", self.path, path)
+        local_path = os.path.normpath(local_path)
+        # Check that normalizing the path didn't ../ itself out of $(LOCAL_PATH)
+        # - i.e. that the resulting path is still inside the project tree. The
+        # path may legitimately have ended up containing just $(LOCAL_PATH), though,
+        # so we don't look for a slash.
+        assert local_path.startswith(
+            "$(LOCAL_PATH)"
+        ), f"Path {path} attempts to escape from gyp path {self.path} !)"
+        return local_path
+
+    def ExpandInputRoot(self, template, expansion, dirname):
+        if "%(INPUT_ROOT)s" not in template and "%(INPUT_DIRNAME)s" not in template:
+            return template
+        path = template % {
+            "INPUT_ROOT": expansion,
+            "INPUT_DIRNAME": dirname,
+        }
+        return os.path.normpath(path)
+
+
+def PerformBuild(data, configurations, params):
+    # The android backend only supports the default configuration.
+    options = params["options"]
+    makefile = os.path.abspath(os.path.join(options.toplevel_dir, "GypAndroid.mk"))
+    env = dict(os.environ)
+    env["ONE_SHOT_MAKEFILE"] = makefile
+    arguments = ["make", "-C", os.environ["ANDROID_BUILD_TOP"], "gyp_all_modules"]
+    print("Building: %s" % arguments)
+    subprocess.check_call(arguments, env=env)
+
+
+def GenerateOutput(target_list, target_dicts, data, params):
+    options = params["options"]
+    generator_flags = params.get("generator_flags", {})
+    limit_to_target_all = generator_flags.get("limit_to_target_all", False)
+    write_alias_targets = generator_flags.get("write_alias_targets", True)
+    sdk_version = generator_flags.get("aosp_sdk_version", 0)
+    android_top_dir = os.environ.get("ANDROID_BUILD_TOP")
+    assert android_top_dir, "$ANDROID_BUILD_TOP not set; you need to run lunch."
+
+    def CalculateMakefilePath(build_file, base_name):
+        """Determine where to write a Makefile for a given gyp file."""
+        # Paths in gyp files are relative to the .gyp file, but we want
+        # paths relative to the source root for the master makefile.  Grab
+        # the path of the .gyp file as the base to relativize against.
+        # E.g. "foo/bar" when we're constructing targets for "foo/bar/baz.gyp".
+        base_path = gyp.common.RelativePath(os.path.dirname(build_file), options.depth)
+        # We write the file in the base_path directory.
+        output_file = os.path.join(options.depth, base_path, base_name)
+        assert (
+            not options.generator_output
+        ), "The Android backend does not support options.generator_output."
+        base_path = gyp.common.RelativePath(
+            os.path.dirname(build_file), options.toplevel_dir
+        )
+        return base_path, output_file
+
+    # TODO:  search for the first non-'Default' target.  This can go
+    # away when we add verification that all targets have the
+    # necessary configurations.
+    default_configuration = None
+    for target in target_list:
+        spec = target_dicts[target]
+        if spec["default_configuration"] != "Default":
+            default_configuration = spec["default_configuration"]
+            break
+    if not default_configuration:
+        default_configuration = "Default"
+
+    makefile_name = "GypAndroid" + options.suffix + ".mk"
+    makefile_path = os.path.join(options.toplevel_dir, makefile_name)
+    assert (
+        not options.generator_output
+    ), "The Android backend does not support options.generator_output."
+    gyp.common.EnsureDirExists(makefile_path)
+    root_makefile = open(makefile_path, "w")
+
+    root_makefile.write(header)
+
+    # We set LOCAL_PATH just once, here, to the top of the project tree. This
+    # allows all the other paths we use to be relative to the Android.mk file,
+    # as the Android build system expects.
+    root_makefile.write("\nLOCAL_PATH := $(call my-dir)\n")
+
+    # Find the list of targets that derive from the gyp file(s) being built.
+    needed_targets = set()
+    for build_file in params["build_files"]:
+        for target in gyp.common.AllTargets(target_list, target_dicts, build_file):
+            needed_targets.add(target)
+
+    build_files = set()
+    include_list = set()
+    android_modules = {}
+    for qualified_target in target_list:
+        build_file, target, toolset = gyp.common.ParseQualifiedTarget(qualified_target)
+        relative_build_file = gyp.common.RelativePath(build_file, options.toplevel_dir)
+        build_files.add(relative_build_file)
+        included_files = data[build_file]["included_files"]
+        for included_file in included_files:
+            # The included_files entries are relative to the dir of the build file
+            # that included them, so we have to undo that and then make them relative
+            # to the root dir.
+            relative_include_file = gyp.common.RelativePath(
+                gyp.common.UnrelativePath(included_file, build_file),
+                options.toplevel_dir,
+            )
+            abs_include_file = os.path.abspath(relative_include_file)
+            # If the include file is from the ~/.gyp dir, we should use absolute path
+            # so that relocating the src dir doesn't break the path.
+            if params["home_dot_gyp"] and abs_include_file.startswith(
+                params["home_dot_gyp"]
+            ):
+                build_files.add(abs_include_file)
+            else:
+                build_files.add(relative_include_file)
+
+        base_path, output_file = CalculateMakefilePath(
+            build_file, target + "." + toolset + options.suffix + ".mk"
+        )
+
+        spec = target_dicts[qualified_target]
+        configs = spec["configurations"]
+
+        part_of_all = qualified_target in needed_targets
+        if limit_to_target_all and not part_of_all:
+            continue
+
+        relative_target = gyp.common.QualifiedTarget(
+            relative_build_file, target, toolset
+        )
+        writer = AndroidMkWriter(android_top_dir)
+        android_module = writer.Write(
+            qualified_target,
+            relative_target,
+            base_path,
+            output_file,
+            spec,
+            configs,
+            part_of_all=part_of_all,
+            write_alias_target=write_alias_targets,
+            sdk_version=sdk_version,
+        )
+        if android_module in android_modules:
+            print(
+                "ERROR: Android module names must be unique. The following "
+                "targets both generate Android module name %s.\n  %s\n  %s"
+                % (android_module, android_modules[android_module], qualified_target)
+            )
+            return
+        android_modules[android_module] = qualified_target
+
+        # Our root_makefile lives at the source root.  Compute the relative path
+        # from there to the output_file for including.
+        mkfile_rel_path = gyp.common.RelativePath(
+            output_file, os.path.dirname(makefile_path)
+        )
+        include_list.add(mkfile_rel_path)
+
+    root_makefile.write("GYP_CONFIGURATION ?= %s\n" % default_configuration)
+    root_makefile.write("GYP_VAR_PREFIX ?=\n")
+    root_makefile.write("GYP_HOST_VAR_PREFIX ?=\n")
+    root_makefile.write("GYP_HOST_MULTILIB ?= first\n")
+
+    # Write out the sorted list of includes.
+    root_makefile.write("\n")
+    for include_file in sorted(include_list):
+        root_makefile.write("include $(LOCAL_PATH)/" + include_file + "\n")
+    root_makefile.write("\n")
+
+    if write_alias_targets:
+        root_makefile.write(ALL_MODULES_FOOTER)
+
+    root_makefile.close()
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/cmake.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/cmake.py
new file mode 100644
index 0000000..c95d184
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/cmake.py
@@ -0,0 +1,1321 @@
+# Copyright (c) 2013 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""cmake output module
+
+This module is under development and should be considered experimental.
+
+This module produces cmake (2.8.8+) input as its output. One CMakeLists.txt is
+created for each configuration.
+
+This module's original purpose was to support editing in IDEs like KDevelop
+which use CMake for project management. It is also possible to use CMake to
+generate projects for other IDEs such as eclipse cdt and code::blocks. QtCreator
+will convert the CMakeLists.txt to a code::blocks cbp for the editor to read,
+but build using CMake. As a result QtCreator editor is unaware of compiler
+defines. The generated CMakeLists.txt can also be used to build on Linux. There
+is currently no support for building on platforms other than Linux.
+
+The generated CMakeLists.txt should properly compile all projects. However,
+there is a mismatch between gyp and cmake with regard to linking. All attempts
+are made to work around this, but CMake sometimes sees -Wl,--start-group as a
+library and incorrectly repeats it. As a result the output of this generator
+should not be relied on for building.
+
+When using with kdevelop, use version 4.4+. Previous versions of kdevelop will
+not be able to find the header file directories described in the generated
+CMakeLists.txt file.
+"""
+
+
+import multiprocessing
+import os
+import signal
+import subprocess
+import gyp.common
+import gyp.xcode_emulation
+
+_maketrans = str.maketrans
+
+generator_default_variables = {
+    "EXECUTABLE_PREFIX": "",
+    "EXECUTABLE_SUFFIX": "",
+    "STATIC_LIB_PREFIX": "lib",
+    "STATIC_LIB_SUFFIX": ".a",
+    "SHARED_LIB_PREFIX": "lib",
+    "SHARED_LIB_SUFFIX": ".so",
+    "SHARED_LIB_DIR": "${builddir}/lib.${TOOLSET}",
+    "LIB_DIR": "${obj}.${TOOLSET}",
+    "INTERMEDIATE_DIR": "${obj}.${TOOLSET}/${TARGET}/geni",
+    "SHARED_INTERMEDIATE_DIR": "${obj}/gen",
+    "PRODUCT_DIR": "${builddir}",
+    "RULE_INPUT_PATH": "${RULE_INPUT_PATH}",
+    "RULE_INPUT_DIRNAME": "${RULE_INPUT_DIRNAME}",
+    "RULE_INPUT_NAME": "${RULE_INPUT_NAME}",
+    "RULE_INPUT_ROOT": "${RULE_INPUT_ROOT}",
+    "RULE_INPUT_EXT": "${RULE_INPUT_EXT}",
+    "CONFIGURATION_NAME": "${configuration}",
+}
+
+FULL_PATH_VARS = ("${CMAKE_CURRENT_LIST_DIR}", "${builddir}", "${obj}")
+
+generator_supports_multiple_toolsets = True
+generator_wants_static_library_dependencies_adjusted = True
+
+COMPILABLE_EXTENSIONS = {
+    ".c": "cc",
+    ".cc": "cxx",
+    ".cpp": "cxx",
+    ".cxx": "cxx",
+    ".s": "s",  # cc
+    ".S": "s",  # cc
+}
+
+
+def RemovePrefix(a, prefix):
+    """Returns 'a' without 'prefix' if it starts with 'prefix'."""
+    return a[len(prefix) :] if a.startswith(prefix) else a
+
+
+def CalculateVariables(default_variables, params):
+    """Calculate additional variables for use in the build (called by gyp)."""
+    default_variables.setdefault("OS", gyp.common.GetFlavor(params))
+
+
+def Compilable(filename):
+    """Return true if the file is compilable (should be in OBJS)."""
+    return any(filename.endswith(e) for e in COMPILABLE_EXTENSIONS)
+
+
+def Linkable(filename):
+    """Return true if the file is linkable (should be on the link line)."""
+    return filename.endswith(".o")
+
+
+def NormjoinPathForceCMakeSource(base_path, rel_path):
+    """Resolves rel_path against base_path and returns the result.
+
+  If rel_path is an absolute path it is returned unchanged.
+  Otherwise it is resolved against base_path and normalized.
+  If the result is a relative path, it is forced to be relative to the
+  CMakeLists.txt.
+  """
+    if os.path.isabs(rel_path):
+        return rel_path
+    if any([rel_path.startswith(var) for var in FULL_PATH_VARS]):
+        return rel_path
+    # TODO: do we need to check base_path for absolute variables as well?
+    return os.path.join(
+        "${CMAKE_CURRENT_LIST_DIR}", os.path.normpath(os.path.join(base_path, rel_path))
+    )
+
+
+def NormjoinPath(base_path, rel_path):
+    """Resolves rel_path against base_path and returns the result.
+  TODO: what is this really used for?
+  If rel_path begins with '$' it is returned unchanged.
+  Otherwise it is resolved against base_path if relative, then normalized.
+  """
+    if rel_path.startswith("$") and not rel_path.startswith("${configuration}"):
+        return rel_path
+    return os.path.normpath(os.path.join(base_path, rel_path))
+
+
+def CMakeStringEscape(a):
+    """Escapes the string 'a' for use inside a CMake string.
+
+  This means escaping
+  '\' otherwise it may be seen as modifying the next character
+  '"' otherwise it will end the string
+  ';' otherwise the string becomes a list
+
+  The following do not need to be escaped
+  '#' when the lexer is in string state, this does not start a comment
+
+  The following are yet unknown
+  '$' generator variables (like ${obj}) must not be escaped,
+      but text $ should be escaped
+      what is wanted is to know which $ come from generator variables
+  """
+    return a.replace("\\", "\\\\").replace(";", "\\;").replace('"', '\\"')
+
+
+def SetFileProperty(output, source_name, property_name, values, sep):
+    """Given a set of source file, sets the given property on them."""
+    output.write("set_source_files_properties(")
+    output.write(source_name)
+    output.write(" PROPERTIES ")
+    output.write(property_name)
+    output.write(' "')
+    for value in values:
+        output.write(CMakeStringEscape(value))
+        output.write(sep)
+    output.write('")\n')
+
+
+def SetFilesProperty(output, variable, property_name, values, sep):
+    """Given a set of source files, sets the given property on them."""
+    output.write("set_source_files_properties(")
+    WriteVariable(output, variable)
+    output.write(" PROPERTIES ")
+    output.write(property_name)
+    output.write(' "')
+    for value in values:
+        output.write(CMakeStringEscape(value))
+        output.write(sep)
+    output.write('")\n')
+
+
+def SetTargetProperty(output, target_name, property_name, values, sep=""):
+    """Given a target, sets the given property."""
+    output.write("set_target_properties(")
+    output.write(target_name)
+    output.write(" PROPERTIES ")
+    output.write(property_name)
+    output.write(' "')
+    for value in values:
+        output.write(CMakeStringEscape(value))
+        output.write(sep)
+    output.write('")\n')
+
+
+def SetVariable(output, variable_name, value):
+    """Sets a CMake variable."""
+    output.write("set(")
+    output.write(variable_name)
+    output.write(' "')
+    output.write(CMakeStringEscape(value))
+    output.write('")\n')
+
+
+def SetVariableList(output, variable_name, values):
+    """Sets a CMake variable to a list."""
+    if not values:
+        return SetVariable(output, variable_name, "")
+    if len(values) == 1:
+        return SetVariable(output, variable_name, values[0])
+    output.write("list(APPEND ")
+    output.write(variable_name)
+    output.write('\n  "')
+    output.write('"\n  "'.join([CMakeStringEscape(value) for value in values]))
+    output.write('")\n')
+
+
+def UnsetVariable(output, variable_name):
+    """Unsets a CMake variable."""
+    output.write("unset(")
+    output.write(variable_name)
+    output.write(")\n")
+
+
+def WriteVariable(output, variable_name, prepend=None):
+    if prepend:
+        output.write(prepend)
+    output.write("${")
+    output.write(variable_name)
+    output.write("}")
+
+
+class CMakeTargetType:
+    def __init__(self, command, modifier, property_modifier):
+        self.command = command
+        self.modifier = modifier
+        self.property_modifier = property_modifier
+
+
+cmake_target_type_from_gyp_target_type = {
+    "executable": CMakeTargetType("add_executable", None, "RUNTIME"),
+    "static_library": CMakeTargetType("add_library", "STATIC", "ARCHIVE"),
+    "shared_library": CMakeTargetType("add_library", "SHARED", "LIBRARY"),
+    "loadable_module": CMakeTargetType("add_library", "MODULE", "LIBRARY"),
+    "none": CMakeTargetType("add_custom_target", "SOURCES", None),
+}
+
+
+def StringToCMakeTargetName(a):
+    """Converts the given string 'a' to a valid CMake target name.
+
+  All invalid characters are replaced by '_'.
+  Invalid for cmake: ' ', '/', '(', ')', '"'
+  Invalid for make: ':'
+  Invalid for unknown reasons but cause failures: '.'
+  """
+    return a.translate(_maketrans(' /():."', "_______"))
+
+
+def WriteActions(target_name, actions, extra_sources, extra_deps, path_to_gyp, output):
+    """Write CMake for the 'actions' in the target.
+
+  Args:
+    target_name: the name of the CMake target being generated.
+    actions: the Gyp 'actions' dict for this target.
+    extra_sources: [(<cmake_src>, <src>)] to append with generated source files.
+    extra_deps: [<cmake_taget>] to append with generated targets.
+    path_to_gyp: relative path from CMakeLists.txt being generated to
+        the Gyp file in which the target being generated is defined.
+  """
+    for action in actions:
+        action_name = StringToCMakeTargetName(action["action_name"])
+        action_target_name = f"{target_name}__{action_name}"
+
+        inputs = action["inputs"]
+        inputs_name = action_target_name + "__input"
+        SetVariableList(
+            output,
+            inputs_name,
+            [NormjoinPathForceCMakeSource(path_to_gyp, dep) for dep in inputs],
+        )
+
+        outputs = action["outputs"]
+        cmake_outputs = [
+            NormjoinPathForceCMakeSource(path_to_gyp, out) for out in outputs
+        ]
+        outputs_name = action_target_name + "__output"
+        SetVariableList(output, outputs_name, cmake_outputs)
+
+        # Build up a list of outputs.
+        # Collect the output dirs we'll need.
+        dirs = {dir for dir in (os.path.dirname(o) for o in outputs) if dir}
+
+        if int(action.get("process_outputs_as_sources", False)):
+            extra_sources.extend(zip(cmake_outputs, outputs))
+
+        # add_custom_command
+        output.write("add_custom_command(OUTPUT ")
+        WriteVariable(output, outputs_name)
+        output.write("\n")
+
+        if len(dirs) > 0:
+            for directory in dirs:
+                output.write("  COMMAND ${CMAKE_COMMAND} -E make_directory ")
+                output.write(directory)
+                output.write("\n")
+
+        output.write("  COMMAND ")
+        output.write(gyp.common.EncodePOSIXShellList(action["action"]))
+        output.write("\n")
+
+        output.write("  DEPENDS ")
+        WriteVariable(output, inputs_name)
+        output.write("\n")
+
+        output.write("  WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/")
+        output.write(path_to_gyp)
+        output.write("\n")
+
+        output.write("  COMMENT ")
+        if "message" in action:
+            output.write(action["message"])
+        else:
+            output.write(action_target_name)
+        output.write("\n")
+
+        output.write("  VERBATIM\n")
+        output.write(")\n")
+
+        # add_custom_target
+        output.write("add_custom_target(")
+        output.write(action_target_name)
+        output.write("\n  DEPENDS ")
+        WriteVariable(output, outputs_name)
+        output.write("\n  SOURCES ")
+        WriteVariable(output, inputs_name)
+        output.write("\n)\n")
+
+        extra_deps.append(action_target_name)
+
+
+def NormjoinRulePathForceCMakeSource(base_path, rel_path, rule_source):
+    if rel_path.startswith(("${RULE_INPUT_PATH}", "${RULE_INPUT_DIRNAME}")):
+        if any([rule_source.startswith(var) for var in FULL_PATH_VARS]):
+            return rel_path
+    return NormjoinPathForceCMakeSource(base_path, rel_path)
+
+
+def WriteRules(target_name, rules, extra_sources, extra_deps, path_to_gyp, output):
+    """Write CMake for the 'rules' in the target.
+
+  Args:
+    target_name: the name of the CMake target being generated.
+    actions: the Gyp 'actions' dict for this target.
+    extra_sources: [(<cmake_src>, <src>)] to append with generated source files.
+    extra_deps: [<cmake_taget>] to append with generated targets.
+    path_to_gyp: relative path from CMakeLists.txt being generated to
+        the Gyp file in which the target being generated is defined.
+  """
+    for rule in rules:
+        rule_name = StringToCMakeTargetName(target_name + "__" + rule["rule_name"])
+
+        inputs = rule.get("inputs", [])
+        inputs_name = rule_name + "__input"
+        SetVariableList(
+            output,
+            inputs_name,
+            [NormjoinPathForceCMakeSource(path_to_gyp, dep) for dep in inputs],
+        )
+        outputs = rule["outputs"]
+        var_outputs = []
+
+        for count, rule_source in enumerate(rule.get("rule_sources", [])):
+            action_name = rule_name + "_" + str(count)
+
+            rule_source_dirname, rule_source_basename = os.path.split(rule_source)
+            rule_source_root, rule_source_ext = os.path.splitext(rule_source_basename)
+
+            SetVariable(output, "RULE_INPUT_PATH", rule_source)
+            SetVariable(output, "RULE_INPUT_DIRNAME", rule_source_dirname)
+            SetVariable(output, "RULE_INPUT_NAME", rule_source_basename)
+            SetVariable(output, "RULE_INPUT_ROOT", rule_source_root)
+            SetVariable(output, "RULE_INPUT_EXT", rule_source_ext)
+
+            # Build up a list of outputs.
+            # Collect the output dirs we'll need.
+            dirs = {dir for dir in (os.path.dirname(o) for o in outputs) if dir}
+
+            # Create variables for the output, as 'local' variable will be unset.
+            these_outputs = []
+            for output_index, out in enumerate(outputs):
+                output_name = action_name + "_" + str(output_index)
+                SetVariable(
+                    output,
+                    output_name,
+                    NormjoinRulePathForceCMakeSource(path_to_gyp, out, rule_source),
+                )
+                if int(rule.get("process_outputs_as_sources", False)):
+                    extra_sources.append(("${" + output_name + "}", out))
+                these_outputs.append("${" + output_name + "}")
+                var_outputs.append("${" + output_name + "}")
+
+            # add_custom_command
+            output.write("add_custom_command(OUTPUT\n")
+            for out in these_outputs:
+                output.write("  ")
+                output.write(out)
+                output.write("\n")
+
+            for directory in dirs:
+                output.write("  COMMAND ${CMAKE_COMMAND} -E make_directory ")
+                output.write(directory)
+                output.write("\n")
+
+            output.write("  COMMAND ")
+            output.write(gyp.common.EncodePOSIXShellList(rule["action"]))
+            output.write("\n")
+
+            output.write("  DEPENDS ")
+            WriteVariable(output, inputs_name)
+            output.write(" ")
+            output.write(NormjoinPath(path_to_gyp, rule_source))
+            output.write("\n")
+
+            # CMAKE_CURRENT_LIST_DIR is where the CMakeLists.txt lives.
+            # The cwd is the current build directory.
+            output.write("  WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/")
+            output.write(path_to_gyp)
+            output.write("\n")
+
+            output.write("  COMMENT ")
+            if "message" in rule:
+                output.write(rule["message"])
+            else:
+                output.write(action_name)
+            output.write("\n")
+
+            output.write("  VERBATIM\n")
+            output.write(")\n")
+
+            UnsetVariable(output, "RULE_INPUT_PATH")
+            UnsetVariable(output, "RULE_INPUT_DIRNAME")
+            UnsetVariable(output, "RULE_INPUT_NAME")
+            UnsetVariable(output, "RULE_INPUT_ROOT")
+            UnsetVariable(output, "RULE_INPUT_EXT")
+
+        # add_custom_target
+        output.write("add_custom_target(")
+        output.write(rule_name)
+        output.write(" DEPENDS\n")
+        for out in var_outputs:
+            output.write("  ")
+            output.write(out)
+            output.write("\n")
+        output.write("SOURCES ")
+        WriteVariable(output, inputs_name)
+        output.write("\n")
+        for rule_source in rule.get("rule_sources", []):
+            output.write("  ")
+            output.write(NormjoinPath(path_to_gyp, rule_source))
+            output.write("\n")
+        output.write(")\n")
+
+        extra_deps.append(rule_name)
+
+
+def WriteCopies(target_name, copies, extra_deps, path_to_gyp, output):
+    """Write CMake for the 'copies' in the target.
+
+  Args:
+    target_name: the name of the CMake target being generated.
+    actions: the Gyp 'actions' dict for this target.
+    extra_deps: [<cmake_taget>] to append with generated targets.
+    path_to_gyp: relative path from CMakeLists.txt being generated to
+        the Gyp file in which the target being generated is defined.
+  """
+    copy_name = target_name + "__copies"
+
+    # CMake gets upset with custom targets with OUTPUT which specify no output.
+    have_copies = any(copy["files"] for copy in copies)
+    if not have_copies:
+        output.write("add_custom_target(")
+        output.write(copy_name)
+        output.write(")\n")
+        extra_deps.append(copy_name)
+        return
+
+    class Copy:
+        def __init__(self, ext, command):
+            self.cmake_inputs = []
+            self.cmake_outputs = []
+            self.gyp_inputs = []
+            self.gyp_outputs = []
+            self.ext = ext
+            self.inputs_name = None
+            self.outputs_name = None
+            self.command = command
+
+    file_copy = Copy("", "copy")
+    dir_copy = Copy("_dirs", "copy_directory")
+
+    for copy in copies:
+        files = copy["files"]
+        destination = copy["destination"]
+        for src in files:
+            path = os.path.normpath(src)
+            basename = os.path.split(path)[1]
+            dst = os.path.join(destination, basename)
+
+            copy = file_copy if os.path.basename(src) else dir_copy
+
+            copy.cmake_inputs.append(NormjoinPathForceCMakeSource(path_to_gyp, src))
+            copy.cmake_outputs.append(NormjoinPathForceCMakeSource(path_to_gyp, dst))
+            copy.gyp_inputs.append(src)
+            copy.gyp_outputs.append(dst)
+
+    for copy in (file_copy, dir_copy):
+        if copy.cmake_inputs:
+            copy.inputs_name = copy_name + "__input" + copy.ext
+            SetVariableList(output, copy.inputs_name, copy.cmake_inputs)
+
+            copy.outputs_name = copy_name + "__output" + copy.ext
+            SetVariableList(output, copy.outputs_name, copy.cmake_outputs)
+
+    # add_custom_command
+    output.write("add_custom_command(\n")
+
+    output.write("OUTPUT")
+    for copy in (file_copy, dir_copy):
+        if copy.outputs_name:
+            WriteVariable(output, copy.outputs_name, " ")
+    output.write("\n")
+
+    for copy in (file_copy, dir_copy):
+        for src, dst in zip(copy.gyp_inputs, copy.gyp_outputs):
+            # 'cmake -E copy src dst' will create the 'dst' directory if needed.
+            output.write("COMMAND ${CMAKE_COMMAND} -E %s " % copy.command)
+            output.write(src)
+            output.write(" ")
+            output.write(dst)
+            output.write("\n")
+
+    output.write("DEPENDS")
+    for copy in (file_copy, dir_copy):
+        if copy.inputs_name:
+            WriteVariable(output, copy.inputs_name, " ")
+    output.write("\n")
+
+    output.write("WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/")
+    output.write(path_to_gyp)
+    output.write("\n")
+
+    output.write("COMMENT Copying for ")
+    output.write(target_name)
+    output.write("\n")
+
+    output.write("VERBATIM\n")
+    output.write(")\n")
+
+    # add_custom_target
+    output.write("add_custom_target(")
+    output.write(copy_name)
+    output.write("\n  DEPENDS")
+    for copy in (file_copy, dir_copy):
+        if copy.outputs_name:
+            WriteVariable(output, copy.outputs_name, " ")
+    output.write("\n  SOURCES")
+    if file_copy.inputs_name:
+        WriteVariable(output, file_copy.inputs_name, " ")
+    output.write("\n)\n")
+
+    extra_deps.append(copy_name)
+
+
+def CreateCMakeTargetBaseName(qualified_target):
+    """This is the name we would like the target to have."""
+    _, gyp_target_name, gyp_target_toolset = gyp.common.ParseQualifiedTarget(
+        qualified_target
+    )
+    cmake_target_base_name = gyp_target_name
+    if gyp_target_toolset and gyp_target_toolset != "target":
+        cmake_target_base_name += "_" + gyp_target_toolset
+    return StringToCMakeTargetName(cmake_target_base_name)
+
+
+def CreateCMakeTargetFullName(qualified_target):
+    """An unambiguous name for the target."""
+    gyp_file, gyp_target_name, gyp_target_toolset = gyp.common.ParseQualifiedTarget(
+        qualified_target
+    )
+    cmake_target_full_name = gyp_file + ":" + gyp_target_name
+    if gyp_target_toolset and gyp_target_toolset != "target":
+        cmake_target_full_name += "_" + gyp_target_toolset
+    return StringToCMakeTargetName(cmake_target_full_name)
+
+
+class CMakeNamer:
+    """Converts Gyp target names into CMake target names.
+
+  CMake requires that target names be globally unique. One way to ensure
+  this is to fully qualify the names of the targets. Unfortunately, this
+  ends up with all targets looking like "chrome_chrome_gyp_chrome" instead
+  of just "chrome". If this generator were only interested in building, it
+  would be possible to fully qualify all target names, then create
+  unqualified target names which depend on all qualified targets which
+  should have had that name. This is more or less what the 'make' generator
+  does with aliases. However, one goal of this generator is to create CMake
+  files for use with IDEs, and fully qualified names are not as user
+  friendly.
+
+  Since target name collision is rare, we do the above only when required.
+
+  Toolset variants are always qualified from the base, as this is required for
+  building. However, it also makes sense for an IDE, as it is possible for
+  defines to be different.
+  """
+
+    def __init__(self, target_list):
+        self.cmake_target_base_names_conficting = set()
+
+        cmake_target_base_names_seen = set()
+        for qualified_target in target_list:
+            cmake_target_base_name = CreateCMakeTargetBaseName(qualified_target)
+
+            if cmake_target_base_name not in cmake_target_base_names_seen:
+                cmake_target_base_names_seen.add(cmake_target_base_name)
+            else:
+                self.cmake_target_base_names_conficting.add(cmake_target_base_name)
+
+    def CreateCMakeTargetName(self, qualified_target):
+        base_name = CreateCMakeTargetBaseName(qualified_target)
+        if base_name in self.cmake_target_base_names_conficting:
+            return CreateCMakeTargetFullName(qualified_target)
+        return base_name
+
+
+def WriteTarget(
+    namer,
+    qualified_target,
+    target_dicts,
+    build_dir,
+    config_to_use,
+    options,
+    generator_flags,
+    all_qualified_targets,
+    flavor,
+    output,
+):
+    # The make generator does this always.
+    # TODO: It would be nice to be able to tell CMake all dependencies.
+    circular_libs = generator_flags.get("circular", True)
+
+    if not generator_flags.get("standalone", False):
+        output.write("\n#")
+        output.write(qualified_target)
+        output.write("\n")
+
+    gyp_file, _, _ = gyp.common.ParseQualifiedTarget(qualified_target)
+    rel_gyp_file = gyp.common.RelativePath(gyp_file, options.toplevel_dir)
+    rel_gyp_dir = os.path.dirname(rel_gyp_file)
+
+    # Relative path from build dir to top dir.
+    build_to_top = gyp.common.InvertRelativePath(build_dir, options.toplevel_dir)
+    # Relative path from build dir to gyp dir.
+    build_to_gyp = os.path.join(build_to_top, rel_gyp_dir)
+
+    path_from_cmakelists_to_gyp = build_to_gyp
+
+    spec = target_dicts.get(qualified_target, {})
+    config = spec.get("configurations", {}).get(config_to_use, {})
+
+    xcode_settings = None
+    if flavor == "mac":
+        xcode_settings = gyp.xcode_emulation.XcodeSettings(spec)
+
+    target_name = spec.get("target_name", "<missing target name>")
+    target_type = spec.get("type", "<missing target type>")
+    target_toolset = spec.get("toolset")
+
+    cmake_target_type = cmake_target_type_from_gyp_target_type.get(target_type)
+    if cmake_target_type is None:
+        print(
+            "Target %s has unknown target type %s, skipping."
+            % (target_name, target_type)
+        )
+        return
+
+    SetVariable(output, "TARGET", target_name)
+    SetVariable(output, "TOOLSET", target_toolset)
+
+    cmake_target_name = namer.CreateCMakeTargetName(qualified_target)
+
+    extra_sources = []
+    extra_deps = []
+
+    # Actions must come first, since they can generate more OBJs for use below.
+    if "actions" in spec:
+        WriteActions(
+            cmake_target_name,
+            spec["actions"],
+            extra_sources,
+            extra_deps,
+            path_from_cmakelists_to_gyp,
+            output,
+        )
+
+    # Rules must be early like actions.
+    if "rules" in spec:
+        WriteRules(
+            cmake_target_name,
+            spec["rules"],
+            extra_sources,
+            extra_deps,
+            path_from_cmakelists_to_gyp,
+            output,
+        )
+
+    # Copies
+    if "copies" in spec:
+        WriteCopies(
+            cmake_target_name,
+            spec["copies"],
+            extra_deps,
+            path_from_cmakelists_to_gyp,
+            output,
+        )
+
+    # Target and sources
+    srcs = spec.get("sources", [])
+
+    # Gyp separates the sheep from the goats based on file extensions.
+    # A full separation is done here because of flag handing (see below).
+    s_sources = []
+    c_sources = []
+    cxx_sources = []
+    linkable_sources = []
+    other_sources = []
+    for src in srcs:
+        _, ext = os.path.splitext(src)
+        src_type = COMPILABLE_EXTENSIONS.get(ext, None)
+        src_norm_path = NormjoinPath(path_from_cmakelists_to_gyp, src)
+
+        if src_type == "s":
+            s_sources.append(src_norm_path)
+        elif src_type == "cc":
+            c_sources.append(src_norm_path)
+        elif src_type == "cxx":
+            cxx_sources.append(src_norm_path)
+        elif Linkable(ext):
+            linkable_sources.append(src_norm_path)
+        else:
+            other_sources.append(src_norm_path)
+
+    for extra_source in extra_sources:
+        src, real_source = extra_source
+        _, ext = os.path.splitext(real_source)
+        src_type = COMPILABLE_EXTENSIONS.get(ext, None)
+
+        if src_type == "s":
+            s_sources.append(src)
+        elif src_type == "cc":
+            c_sources.append(src)
+        elif src_type == "cxx":
+            cxx_sources.append(src)
+        elif Linkable(ext):
+            linkable_sources.append(src)
+        else:
+            other_sources.append(src)
+
+    s_sources_name = None
+    if s_sources:
+        s_sources_name = cmake_target_name + "__asm_srcs"
+        SetVariableList(output, s_sources_name, s_sources)
+
+    c_sources_name = None
+    if c_sources:
+        c_sources_name = cmake_target_name + "__c_srcs"
+        SetVariableList(output, c_sources_name, c_sources)
+
+    cxx_sources_name = None
+    if cxx_sources:
+        cxx_sources_name = cmake_target_name + "__cxx_srcs"
+        SetVariableList(output, cxx_sources_name, cxx_sources)
+
+    linkable_sources_name = None
+    if linkable_sources:
+        linkable_sources_name = cmake_target_name + "__linkable_srcs"
+        SetVariableList(output, linkable_sources_name, linkable_sources)
+
+    other_sources_name = None
+    if other_sources:
+        other_sources_name = cmake_target_name + "__other_srcs"
+        SetVariableList(output, other_sources_name, other_sources)
+
+    # CMake gets upset when executable targets provide no sources.
+    # http://www.cmake.org/pipermail/cmake/2010-July/038461.html
+    dummy_sources_name = None
+    has_sources = (
+        s_sources_name
+        or c_sources_name
+        or cxx_sources_name
+        or linkable_sources_name
+        or other_sources_name
+    )
+    if target_type == "executable" and not has_sources:
+        dummy_sources_name = cmake_target_name + "__dummy_srcs"
+        SetVariable(
+            output, dummy_sources_name, "${obj}.${TOOLSET}/${TARGET}/genc/dummy.c"
+        )
+        output.write('if(NOT EXISTS "')
+        WriteVariable(output, dummy_sources_name)
+        output.write('")\n')
+        output.write('  file(WRITE "')
+        WriteVariable(output, dummy_sources_name)
+        output.write('" "")\n')
+        output.write("endif()\n")
+
+    # CMake is opposed to setting linker directories and considers the practice
+    # of setting linker directories dangerous. Instead, it favors the use of
+    # find_library and passing absolute paths to target_link_libraries.
+    # However, CMake does provide the command link_directories, which adds
+    # link directories to targets defined after it is called.
+    # As a result, link_directories must come before the target definition.
+    # CMake unfortunately has no means of removing entries from LINK_DIRECTORIES.
+    library_dirs = config.get("library_dirs")
+    if library_dirs is not None:
+        output.write("link_directories(")
+        for library_dir in library_dirs:
+            output.write(" ")
+            output.write(NormjoinPath(path_from_cmakelists_to_gyp, library_dir))
+            output.write("\n")
+        output.write(")\n")
+
+    output.write(cmake_target_type.command)
+    output.write("(")
+    output.write(cmake_target_name)
+
+    if cmake_target_type.modifier is not None:
+        output.write(" ")
+        output.write(cmake_target_type.modifier)
+
+    if s_sources_name:
+        WriteVariable(output, s_sources_name, " ")
+    if c_sources_name:
+        WriteVariable(output, c_sources_name, " ")
+    if cxx_sources_name:
+        WriteVariable(output, cxx_sources_name, " ")
+    if linkable_sources_name:
+        WriteVariable(output, linkable_sources_name, " ")
+    if other_sources_name:
+        WriteVariable(output, other_sources_name, " ")
+    if dummy_sources_name:
+        WriteVariable(output, dummy_sources_name, " ")
+
+    output.write(")\n")
+
+    # Let CMake know if the 'all' target should depend on this target.
+    exclude_from_all = (
+        "TRUE" if qualified_target not in all_qualified_targets else "FALSE"
+    )
+    SetTargetProperty(output, cmake_target_name, "EXCLUDE_FROM_ALL", exclude_from_all)
+    for extra_target_name in extra_deps:
+        SetTargetProperty(
+            output, extra_target_name, "EXCLUDE_FROM_ALL", exclude_from_all
+        )
+
+    # Output name and location.
+    if target_type != "none":
+        # Link as 'C' if there are no other files
+        if not c_sources and not cxx_sources:
+            SetTargetProperty(output, cmake_target_name, "LINKER_LANGUAGE", ["C"])
+
+        # Mark uncompiled sources as uncompiled.
+        if other_sources_name:
+            output.write("set_source_files_properties(")
+            WriteVariable(output, other_sources_name, "")
+            output.write(' PROPERTIES HEADER_FILE_ONLY "TRUE")\n')
+
+        # Mark object sources as linkable.
+        if linkable_sources_name:
+            output.write("set_source_files_properties(")
+            WriteVariable(output, other_sources_name, "")
+            output.write(' PROPERTIES EXTERNAL_OBJECT "TRUE")\n')
+
+        # Output directory
+        target_output_directory = spec.get("product_dir")
+        if target_output_directory is None:
+            if target_type in ("executable", "loadable_module"):
+                target_output_directory = generator_default_variables["PRODUCT_DIR"]
+            elif target_type == "shared_library":
+                target_output_directory = "${builddir}/lib.${TOOLSET}"
+            elif spec.get("standalone_static_library", False):
+                target_output_directory = generator_default_variables["PRODUCT_DIR"]
+            else:
+                base_path = gyp.common.RelativePath(
+                    os.path.dirname(gyp_file), options.toplevel_dir
+                )
+                target_output_directory = "${obj}.${TOOLSET}"
+                target_output_directory = os.path.join(
+                    target_output_directory, base_path
+                )
+
+        cmake_target_output_directory = NormjoinPathForceCMakeSource(
+            path_from_cmakelists_to_gyp, target_output_directory
+        )
+        SetTargetProperty(
+            output,
+            cmake_target_name,
+            cmake_target_type.property_modifier + "_OUTPUT_DIRECTORY",
+            cmake_target_output_directory,
+        )
+
+        # Output name
+        default_product_prefix = ""
+        default_product_name = target_name
+        default_product_ext = ""
+        if target_type == "static_library":
+            static_library_prefix = generator_default_variables["STATIC_LIB_PREFIX"]
+            default_product_name = RemovePrefix(
+                default_product_name, static_library_prefix
+            )
+            default_product_prefix = static_library_prefix
+            default_product_ext = generator_default_variables["STATIC_LIB_SUFFIX"]
+
+        elif target_type in ("loadable_module", "shared_library"):
+            shared_library_prefix = generator_default_variables["SHARED_LIB_PREFIX"]
+            default_product_name = RemovePrefix(
+                default_product_name, shared_library_prefix
+            )
+            default_product_prefix = shared_library_prefix
+            default_product_ext = generator_default_variables["SHARED_LIB_SUFFIX"]
+
+        elif target_type != "executable":
+            print(
+                "ERROR: What output file should be generated?",
+                "type",
+                target_type,
+                "target",
+                target_name,
+            )
+
+        product_prefix = spec.get("product_prefix", default_product_prefix)
+        product_name = spec.get("product_name", default_product_name)
+        product_ext = spec.get("product_extension")
+        if product_ext:
+            product_ext = "." + product_ext
+        else:
+            product_ext = default_product_ext
+
+        SetTargetProperty(output, cmake_target_name, "PREFIX", product_prefix)
+        SetTargetProperty(
+            output,
+            cmake_target_name,
+            cmake_target_type.property_modifier + "_OUTPUT_NAME",
+            product_name,
+        )
+        SetTargetProperty(output, cmake_target_name, "SUFFIX", product_ext)
+
+        # Make the output of this target referenceable as a source.
+        cmake_target_output_basename = product_prefix + product_name + product_ext
+        cmake_target_output = os.path.join(
+            cmake_target_output_directory, cmake_target_output_basename
+        )
+        SetFileProperty(output, cmake_target_output, "GENERATED", ["TRUE"], "")
+
+        # Includes
+        includes = config.get("include_dirs")
+        if includes:
+            # This (target include directories) is what requires CMake 2.8.8
+            includes_name = cmake_target_name + "__include_dirs"
+            SetVariableList(
+                output,
+                includes_name,
+                [
+                    NormjoinPathForceCMakeSource(path_from_cmakelists_to_gyp, include)
+                    for include in includes
+                ],
+            )
+            output.write("set_property(TARGET ")
+            output.write(cmake_target_name)
+            output.write(" APPEND PROPERTY INCLUDE_DIRECTORIES ")
+            WriteVariable(output, includes_name, "")
+            output.write(")\n")
+
+        # Defines
+        defines = config.get("defines")
+        if defines is not None:
+            SetTargetProperty(
+                output, cmake_target_name, "COMPILE_DEFINITIONS", defines, ";"
+            )
+
+        # Compile Flags - http://www.cmake.org/Bug/view.php?id=6493
+        # CMake currently does not have target C and CXX flags.
+        # So, instead of doing...
+
+        # cflags_c = config.get('cflags_c')
+        # if cflags_c is not None:
+        #   SetTargetProperty(output, cmake_target_name,
+        #                       'C_COMPILE_FLAGS', cflags_c, ' ')
+
+        # cflags_cc = config.get('cflags_cc')
+        # if cflags_cc is not None:
+        #   SetTargetProperty(output, cmake_target_name,
+        #                       'CXX_COMPILE_FLAGS', cflags_cc, ' ')
+
+        # Instead we must...
+        cflags = config.get("cflags", [])
+        cflags_c = config.get("cflags_c", [])
+        cflags_cxx = config.get("cflags_cc", [])
+        if xcode_settings:
+            cflags = xcode_settings.GetCflags(config_to_use)
+            cflags_c = xcode_settings.GetCflagsC(config_to_use)
+            cflags_cxx = xcode_settings.GetCflagsCC(config_to_use)
+            # cflags_objc = xcode_settings.GetCflagsObjC(config_to_use)
+            # cflags_objcc = xcode_settings.GetCflagsObjCC(config_to_use)
+
+        if (not cflags_c or not c_sources) and (not cflags_cxx or not cxx_sources):
+            SetTargetProperty(output, cmake_target_name, "COMPILE_FLAGS", cflags, " ")
+
+        elif c_sources and not (s_sources or cxx_sources):
+            flags = []
+            flags.extend(cflags)
+            flags.extend(cflags_c)
+            SetTargetProperty(output, cmake_target_name, "COMPILE_FLAGS", flags, " ")
+
+        elif cxx_sources and not (s_sources or c_sources):
+            flags = []
+            flags.extend(cflags)
+            flags.extend(cflags_cxx)
+            SetTargetProperty(output, cmake_target_name, "COMPILE_FLAGS", flags, " ")
+
+        else:
+            # TODO: This is broken, one cannot generally set properties on files,
+            # as other targets may require different properties on the same files.
+            if s_sources and cflags:
+                SetFilesProperty(output, s_sources_name, "COMPILE_FLAGS", cflags, " ")
+
+            if c_sources and (cflags or cflags_c):
+                flags = []
+                flags.extend(cflags)
+                flags.extend(cflags_c)
+                SetFilesProperty(output, c_sources_name, "COMPILE_FLAGS", flags, " ")
+
+            if cxx_sources and (cflags or cflags_cxx):
+                flags = []
+                flags.extend(cflags)
+                flags.extend(cflags_cxx)
+                SetFilesProperty(output, cxx_sources_name, "COMPILE_FLAGS", flags, " ")
+
+        # Linker flags
+        ldflags = config.get("ldflags")
+        if ldflags is not None:
+            SetTargetProperty(output, cmake_target_name, "LINK_FLAGS", ldflags, " ")
+
+        # XCode settings
+        xcode_settings = config.get("xcode_settings", {})
+        for xcode_setting, xcode_value in xcode_settings.items():
+            SetTargetProperty(
+                output,
+                cmake_target_name,
+                "XCODE_ATTRIBUTE_%s" % xcode_setting,
+                xcode_value,
+                "" if isinstance(xcode_value, str) else " ",
+            )
+
+    # Note on Dependencies and Libraries:
+    # CMake wants to handle link order, resolving the link line up front.
+    # Gyp does not retain or enforce specifying enough information to do so.
+    # So do as other gyp generators and use --start-group and --end-group.
+    # Give CMake as little information as possible so that it doesn't mess it up.
+
+    # Dependencies
+    rawDeps = spec.get("dependencies", [])
+
+    static_deps = []
+    shared_deps = []
+    other_deps = []
+    for rawDep in rawDeps:
+        dep_cmake_name = namer.CreateCMakeTargetName(rawDep)
+        dep_spec = target_dicts.get(rawDep, {})
+        dep_target_type = dep_spec.get("type", None)
+
+        if dep_target_type == "static_library":
+            static_deps.append(dep_cmake_name)
+        elif dep_target_type == "shared_library":
+            shared_deps.append(dep_cmake_name)
+        else:
+            other_deps.append(dep_cmake_name)
+
+    # ensure all external dependencies are complete before internal dependencies
+    # extra_deps currently only depend on their own deps, so otherwise run early
+    if static_deps or shared_deps or other_deps:
+        for extra_dep in extra_deps:
+            output.write("add_dependencies(")
+            output.write(extra_dep)
+            output.write("\n")
+            for deps in (static_deps, shared_deps, other_deps):
+                for dep in gyp.common.uniquer(deps):
+                    output.write("  ")
+                    output.write(dep)
+                    output.write("\n")
+            output.write(")\n")
+
+    linkable = target_type in ("executable", "loadable_module", "shared_library")
+    other_deps.extend(extra_deps)
+    if other_deps or (not linkable and (static_deps or shared_deps)):
+        output.write("add_dependencies(")
+        output.write(cmake_target_name)
+        output.write("\n")
+        for dep in gyp.common.uniquer(other_deps):
+            output.write("  ")
+            output.write(dep)
+            output.write("\n")
+        if not linkable:
+            for deps in (static_deps, shared_deps):
+                for lib_dep in gyp.common.uniquer(deps):
+                    output.write("  ")
+                    output.write(lib_dep)
+                    output.write("\n")
+        output.write(")\n")
+
+    # Libraries
+    if linkable:
+        external_libs = [lib for lib in spec.get("libraries", []) if len(lib) > 0]
+        if external_libs or static_deps or shared_deps:
+            output.write("target_link_libraries(")
+            output.write(cmake_target_name)
+            output.write("\n")
+            if static_deps:
+                write_group = circular_libs and len(static_deps) > 1 and flavor != "mac"
+                if write_group:
+                    output.write("-Wl,--start-group\n")
+                for dep in gyp.common.uniquer(static_deps):
+                    output.write("  ")
+                    output.write(dep)
+                    output.write("\n")
+                if write_group:
+                    output.write("-Wl,--end-group\n")
+            if shared_deps:
+                for dep in gyp.common.uniquer(shared_deps):
+                    output.write("  ")
+                    output.write(dep)
+                    output.write("\n")
+            if external_libs:
+                for lib in gyp.common.uniquer(external_libs):
+                    output.write('  "')
+                    output.write(RemovePrefix(lib, "$(SDKROOT)"))
+                    output.write('"\n')
+
+            output.write(")\n")
+
+    UnsetVariable(output, "TOOLSET")
+    UnsetVariable(output, "TARGET")
+
+
+def GenerateOutputForConfig(target_list, target_dicts, data, params, config_to_use):
+    options = params["options"]
+    generator_flags = params["generator_flags"]
+    flavor = gyp.common.GetFlavor(params)
+
+    # generator_dir: relative path from pwd to where make puts build files.
+    # Makes migrating from make to cmake easier, cmake doesn't put anything here.
+    # Each Gyp configuration creates a different CMakeLists.txt file
+    # to avoid incompatibilities between Gyp and CMake configurations.
+    generator_dir = os.path.relpath(options.generator_output or ".")
+
+    # output_dir: relative path from generator_dir to the build directory.
+    output_dir = generator_flags.get("output_dir", "out")
+
+    # build_dir: relative path from source root to our output files.
+    # e.g. "out/Debug"
+    build_dir = os.path.normpath(os.path.join(generator_dir, output_dir, config_to_use))
+
+    toplevel_build = os.path.join(options.toplevel_dir, build_dir)
+
+    output_file = os.path.join(toplevel_build, "CMakeLists.txt")
+    gyp.common.EnsureDirExists(output_file)
+
+    output = open(output_file, "w")
+    output.write("cmake_minimum_required(VERSION 2.8.8 FATAL_ERROR)\n")
+    output.write("cmake_policy(VERSION 2.8.8)\n")
+
+    gyp_file, project_target, _ = gyp.common.ParseQualifiedTarget(target_list[-1])
+    output.write("project(")
+    output.write(project_target)
+    output.write(")\n")
+
+    SetVariable(output, "configuration", config_to_use)
+
+    ar = None
+    cc = None
+    cxx = None
+
+    make_global_settings = data[gyp_file].get("make_global_settings", [])
+    build_to_top = gyp.common.InvertRelativePath(build_dir, options.toplevel_dir)
+    for key, value in make_global_settings:
+        if key == "AR":
+            ar = os.path.join(build_to_top, value)
+        if key == "CC":
+            cc = os.path.join(build_to_top, value)
+        if key == "CXX":
+            cxx = os.path.join(build_to_top, value)
+
+    ar = gyp.common.GetEnvironFallback(["AR_target", "AR"], ar)
+    cc = gyp.common.GetEnvironFallback(["CC_target", "CC"], cc)
+    cxx = gyp.common.GetEnvironFallback(["CXX_target", "CXX"], cxx)
+
+    if ar:
+        SetVariable(output, "CMAKE_AR", ar)
+    if cc:
+        SetVariable(output, "CMAKE_C_COMPILER", cc)
+    if cxx:
+        SetVariable(output, "CMAKE_CXX_COMPILER", cxx)
+
+    # The following appears to be as-yet undocumented.
+    # http://public.kitware.com/Bug/view.php?id=8392
+    output.write("enable_language(ASM)\n")
+    # ASM-ATT does not support .S files.
+    # output.write('enable_language(ASM-ATT)\n')
+
+    if cc:
+        SetVariable(output, "CMAKE_ASM_COMPILER", cc)
+
+    SetVariable(output, "builddir", "${CMAKE_CURRENT_BINARY_DIR}")
+    SetVariable(output, "obj", "${builddir}/obj")
+    output.write("\n")
+
+    # TODO: Undocumented/unsupported (the CMake Java generator depends on it).
+    # CMake by default names the object resulting from foo.c to be foo.c.o.
+    # Gyp traditionally names the object resulting from foo.c foo.o.
+    # This should be irrelevant, but some targets extract .o files from .a
+    # and depend on the name of the extracted .o files.
+    output.write("set(CMAKE_C_OUTPUT_EXTENSION_REPLACE 1)\n")
+    output.write("set(CMAKE_CXX_OUTPUT_EXTENSION_REPLACE 1)\n")
+    output.write("\n")
+
+    # Force ninja to use rsp files. Otherwise link and ar lines can get too long,
+    # resulting in 'Argument list too long' errors.
+    # However, rsp files don't work correctly on Mac.
+    if flavor != "mac":
+        output.write("set(CMAKE_NINJA_FORCE_RESPONSE_FILE 1)\n")
+    output.write("\n")
+
+    namer = CMakeNamer(target_list)
+
+    # The list of targets upon which the 'all' target should depend.
+    # CMake has it's own implicit 'all' target, one is not created explicitly.
+    all_qualified_targets = set()
+    for build_file in params["build_files"]:
+        for qualified_target in gyp.common.AllTargets(
+            target_list, target_dicts, os.path.normpath(build_file)
+        ):
+            all_qualified_targets.add(qualified_target)
+
+    for qualified_target in target_list:
+        if flavor == "mac":
+            gyp_file, _, _ = gyp.common.ParseQualifiedTarget(qualified_target)
+            spec = target_dicts[qualified_target]
+            gyp.xcode_emulation.MergeGlobalXcodeSettingsToSpec(data[gyp_file], spec)
+
+        WriteTarget(
+            namer,
+            qualified_target,
+            target_dicts,
+            build_dir,
+            config_to_use,
+            options,
+            generator_flags,
+            all_qualified_targets,
+            flavor,
+            output,
+        )
+
+    output.close()
+
+
+def PerformBuild(data, configurations, params):
+    options = params["options"]
+    generator_flags = params["generator_flags"]
+
+    # generator_dir: relative path from pwd to where make puts build files.
+    # Makes migrating from make to cmake easier, cmake doesn't put anything here.
+    generator_dir = os.path.relpath(options.generator_output or ".")
+
+    # output_dir: relative path from generator_dir to the build directory.
+    output_dir = generator_flags.get("output_dir", "out")
+
+    for config_name in configurations:
+        # build_dir: relative path from source root to our output files.
+        # e.g. "out/Debug"
+        build_dir = os.path.normpath(
+            os.path.join(generator_dir, output_dir, config_name)
+        )
+        arguments = ["cmake", "-G", "Ninja"]
+        print(f"Generating [{config_name}]: {arguments}")
+        subprocess.check_call(arguments, cwd=build_dir)
+
+        arguments = ["ninja", "-C", build_dir]
+        print(f"Building [{config_name}]: {arguments}")
+        subprocess.check_call(arguments)
+
+
+def CallGenerateOutputForConfig(arglist):
+    # Ignore the interrupt signal so that the parent process catches it and
+    # kills all multiprocessing children.
+    signal.signal(signal.SIGINT, signal.SIG_IGN)
+
+    target_list, target_dicts, data, params, config_name = arglist
+    GenerateOutputForConfig(target_list, target_dicts, data, params, config_name)
+
+
+def GenerateOutput(target_list, target_dicts, data, params):
+    user_config = params.get("generator_flags", {}).get("config", None)
+    if user_config:
+        GenerateOutputForConfig(target_list, target_dicts, data, params, user_config)
+    else:
+        config_names = target_dicts[target_list[0]]["configurations"]
+        if params["parallel"]:
+            try:
+                pool = multiprocessing.Pool(len(config_names))
+                arglists = []
+                for config_name in config_names:
+                    arglists.append(
+                        (target_list, target_dicts, data, params, config_name)
+                    )
+                    pool.map(CallGenerateOutputForConfig, arglists)
+            except KeyboardInterrupt as e:
+                pool.terminate()
+                raise e
+        else:
+            for config_name in config_names:
+                GenerateOutputForConfig(
+                    target_list, target_dicts, data, params, config_name
+                )
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/compile_commands_json.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/compile_commands_json.py
new file mode 100644
index 0000000..f330a04
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/compile_commands_json.py
@@ -0,0 +1,120 @@
+# Copyright (c) 2016 Ben Noordhuis <info@bnoordhuis.nl>. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import gyp.common
+import gyp.xcode_emulation
+import json
+import os
+
+generator_additional_non_configuration_keys = []
+generator_additional_path_sections = []
+generator_extra_sources_for_rules = []
+generator_filelist_paths = None
+generator_supports_multiple_toolsets = True
+generator_wants_sorted_dependencies = False
+
+# Lifted from make.py.  The actual values don't matter much.
+generator_default_variables = {
+    "CONFIGURATION_NAME": "$(BUILDTYPE)",
+    "EXECUTABLE_PREFIX": "",
+    "EXECUTABLE_SUFFIX": "",
+    "INTERMEDIATE_DIR": "$(obj).$(TOOLSET)/$(TARGET)/geni",
+    "PRODUCT_DIR": "$(builddir)",
+    "RULE_INPUT_DIRNAME": "%(INPUT_DIRNAME)s",
+    "RULE_INPUT_EXT": "$(suffix $<)",
+    "RULE_INPUT_NAME": "$(notdir $<)",
+    "RULE_INPUT_PATH": "$(abspath $<)",
+    "RULE_INPUT_ROOT": "%(INPUT_ROOT)s",
+    "SHARED_INTERMEDIATE_DIR": "$(obj)/gen",
+    "SHARED_LIB_PREFIX": "lib",
+    "STATIC_LIB_PREFIX": "lib",
+    "STATIC_LIB_SUFFIX": ".a",
+}
+
+
+def IsMac(params):
+    return "mac" == gyp.common.GetFlavor(params)
+
+
+def CalculateVariables(default_variables, params):
+    default_variables.setdefault("OS", gyp.common.GetFlavor(params))
+
+
+def AddCommandsForTarget(cwd, target, params, per_config_commands):
+    output_dir = params["generator_flags"].get("output_dir", "out")
+    for configuration_name, configuration in target["configurations"].items():
+        if IsMac(params):
+            xcode_settings = gyp.xcode_emulation.XcodeSettings(target)
+            cflags = xcode_settings.GetCflags(configuration_name)
+            cflags_c = xcode_settings.GetCflagsC(configuration_name)
+            cflags_cc = xcode_settings.GetCflagsCC(configuration_name)
+        else:
+            cflags = configuration.get("cflags", [])
+            cflags_c = configuration.get("cflags_c", [])
+            cflags_cc = configuration.get("cflags_cc", [])
+
+        cflags_c = cflags + cflags_c
+        cflags_cc = cflags + cflags_cc
+
+        defines = configuration.get("defines", [])
+        defines = ["-D" + s for s in defines]
+
+        # TODO(bnoordhuis) Handle generated source files.
+        extensions = (".c", ".cc", ".cpp", ".cxx")
+        sources = [s for s in target.get("sources", []) if s.endswith(extensions)]
+
+        def resolve(filename):
+            return os.path.abspath(os.path.join(cwd, filename))
+
+        # TODO(bnoordhuis) Handle generated header files.
+        include_dirs = configuration.get("include_dirs", [])
+        include_dirs = [s for s in include_dirs if not s.startswith("$(obj)")]
+        includes = ["-I" + resolve(s) for s in include_dirs]
+
+        defines = gyp.common.EncodePOSIXShellList(defines)
+        includes = gyp.common.EncodePOSIXShellList(includes)
+        cflags_c = gyp.common.EncodePOSIXShellList(cflags_c)
+        cflags_cc = gyp.common.EncodePOSIXShellList(cflags_cc)
+
+        commands = per_config_commands.setdefault(configuration_name, [])
+        for source in sources:
+            file = resolve(source)
+            isc = source.endswith(".c")
+            cc = "cc" if isc else "c++"
+            cflags = cflags_c if isc else cflags_cc
+            command = " ".join(
+                (
+                    cc,
+                    defines,
+                    includes,
+                    cflags,
+                    "-c",
+                    gyp.common.EncodePOSIXShellArgument(file),
+                )
+            )
+            commands.append(dict(command=command, directory=output_dir, file=file))
+
+
+def GenerateOutput(target_list, target_dicts, data, params):
+    per_config_commands = {}
+    for qualified_target, target in target_dicts.items():
+        build_file, target_name, toolset = gyp.common.ParseQualifiedTarget(
+            qualified_target
+        )
+        if IsMac(params):
+            settings = data[build_file]
+            gyp.xcode_emulation.MergeGlobalXcodeSettingsToSpec(settings, target)
+        cwd = os.path.dirname(build_file)
+        AddCommandsForTarget(cwd, target, params, per_config_commands)
+
+    output_dir = params["generator_flags"].get("output_dir", "out")
+    for configuration_name, commands in per_config_commands.items():
+        filename = os.path.join(output_dir, configuration_name, "compile_commands.json")
+        gyp.common.EnsureDirExists(filename)
+        fp = open(filename, "w")
+        json.dump(commands, fp=fp, indent=0, check_circular=False)
+
+
+def PerformBuild(data, configurations, params):
+    pass
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/dump_dependency_json.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/dump_dependency_json.py
new file mode 100644
index 0000000..99d5c1f
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/dump_dependency_json.py
@@ -0,0 +1,103 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+import os
+import gyp
+import gyp.common
+import gyp.msvs_emulation
+import json
+
+generator_supports_multiple_toolsets = True
+
+generator_wants_static_library_dependencies_adjusted = False
+
+generator_filelist_paths = {}
+
+generator_default_variables = {}
+for dirname in [
+    "INTERMEDIATE_DIR",
+    "SHARED_INTERMEDIATE_DIR",
+    "PRODUCT_DIR",
+    "LIB_DIR",
+    "SHARED_LIB_DIR",
+]:
+    # Some gyp steps fail if these are empty(!).
+    generator_default_variables[dirname] = "dir"
+for unused in [
+    "RULE_INPUT_PATH",
+    "RULE_INPUT_ROOT",
+    "RULE_INPUT_NAME",
+    "RULE_INPUT_DIRNAME",
+    "RULE_INPUT_EXT",
+    "EXECUTABLE_PREFIX",
+    "EXECUTABLE_SUFFIX",
+    "STATIC_LIB_PREFIX",
+    "STATIC_LIB_SUFFIX",
+    "SHARED_LIB_PREFIX",
+    "SHARED_LIB_SUFFIX",
+    "CONFIGURATION_NAME",
+]:
+    generator_default_variables[unused] = ""
+
+
+def CalculateVariables(default_variables, params):
+    generator_flags = params.get("generator_flags", {})
+    for key, val in generator_flags.items():
+        default_variables.setdefault(key, val)
+    default_variables.setdefault("OS", gyp.common.GetFlavor(params))
+
+    flavor = gyp.common.GetFlavor(params)
+    if flavor == "win":
+        gyp.msvs_emulation.CalculateCommonVariables(default_variables, params)
+
+
+def CalculateGeneratorInputInfo(params):
+    """Calculate the generator specific info that gets fed to input (called by
+  gyp)."""
+    generator_flags = params.get("generator_flags", {})
+    if generator_flags.get("adjust_static_libraries", False):
+        global generator_wants_static_library_dependencies_adjusted
+        generator_wants_static_library_dependencies_adjusted = True
+
+    toplevel = params["options"].toplevel_dir
+    generator_dir = os.path.relpath(params["options"].generator_output or ".")
+    # output_dir: relative path from generator_dir to the build directory.
+    output_dir = generator_flags.get("output_dir", "out")
+    qualified_out_dir = os.path.normpath(
+        os.path.join(toplevel, generator_dir, output_dir, "gypfiles")
+    )
+    global generator_filelist_paths
+    generator_filelist_paths = {
+        "toplevel": toplevel,
+        "qualified_out_dir": qualified_out_dir,
+    }
+
+
+def GenerateOutput(target_list, target_dicts, data, params):
+    # Map of target -> list of targets it depends on.
+    edges = {}
+
+    # Queue of targets to visit.
+    targets_to_visit = target_list[:]
+
+    while len(targets_to_visit) > 0:
+        target = targets_to_visit.pop()
+        if target in edges:
+            continue
+        edges[target] = []
+
+        for dep in target_dicts[target].get("dependencies", []):
+            edges[target].append(dep)
+            targets_to_visit.append(dep)
+
+    try:
+        filepath = params["generator_flags"]["output_dir"]
+    except KeyError:
+        filepath = "."
+    filename = os.path.join(filepath, "dump.json")
+    f = open(filename, "w")
+    json.dump(edges, f)
+    f.close()
+    print("Wrote json to %s." % filename)
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/eclipse.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/eclipse.py
new file mode 100644
index 0000000..1ff0dc8
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/eclipse.py
@@ -0,0 +1,464 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""GYP backend that generates Eclipse CDT settings files.
+
+This backend DOES NOT generate Eclipse CDT projects. Instead, it generates XML
+files that can be imported into an Eclipse CDT project. The XML file contains a
+list of include paths and symbols (i.e. defines).
+
+Because a full .cproject definition is not created by this generator, it's not
+possible to properly define the include dirs and symbols for each file
+individually.  Instead, one set of includes/symbols is generated for the entire
+project.  This works fairly well (and is a vast improvement in general), but may
+still result in a few indexer issues here and there.
+
+This generator has no automated tests, so expect it to be broken.
+"""
+
+from xml.sax.saxutils import escape
+import os.path
+import subprocess
+import gyp
+import gyp.common
+import gyp.msvs_emulation
+import shlex
+import xml.etree.cElementTree as ET
+
+generator_wants_static_library_dependencies_adjusted = False
+
+generator_default_variables = {}
+
+for dirname in ["INTERMEDIATE_DIR", "PRODUCT_DIR", "LIB_DIR", "SHARED_LIB_DIR"]:
+    # Some gyp steps fail if these are empty(!), so we convert them to variables
+    generator_default_variables[dirname] = "$" + dirname
+
+for unused in [
+    "RULE_INPUT_PATH",
+    "RULE_INPUT_ROOT",
+    "RULE_INPUT_NAME",
+    "RULE_INPUT_DIRNAME",
+    "RULE_INPUT_EXT",
+    "EXECUTABLE_PREFIX",
+    "EXECUTABLE_SUFFIX",
+    "STATIC_LIB_PREFIX",
+    "STATIC_LIB_SUFFIX",
+    "SHARED_LIB_PREFIX",
+    "SHARED_LIB_SUFFIX",
+    "CONFIGURATION_NAME",
+]:
+    generator_default_variables[unused] = ""
+
+# Include dirs will occasionally use the SHARED_INTERMEDIATE_DIR variable as
+# part of the path when dealing with generated headers.  This value will be
+# replaced dynamically for each configuration.
+generator_default_variables["SHARED_INTERMEDIATE_DIR"] = "$SHARED_INTERMEDIATE_DIR"
+
+
+def CalculateVariables(default_variables, params):
+    generator_flags = params.get("generator_flags", {})
+    for key, val in generator_flags.items():
+        default_variables.setdefault(key, val)
+    flavor = gyp.common.GetFlavor(params)
+    default_variables.setdefault("OS", flavor)
+    if flavor == "win":
+        gyp.msvs_emulation.CalculateCommonVariables(default_variables, params)
+
+
+def CalculateGeneratorInputInfo(params):
+    """Calculate the generator specific info that gets fed to input (called by
+  gyp)."""
+    generator_flags = params.get("generator_flags", {})
+    if generator_flags.get("adjust_static_libraries", False):
+        global generator_wants_static_library_dependencies_adjusted
+        generator_wants_static_library_dependencies_adjusted = True
+
+
+def GetAllIncludeDirectories(
+    target_list,
+    target_dicts,
+    shared_intermediate_dirs,
+    config_name,
+    params,
+    compiler_path,
+):
+    """Calculate the set of include directories to be used.
+
+  Returns:
+    A list including all the include_dir's specified for every target followed
+    by any include directories that were added as cflag compiler options.
+  """
+
+    gyp_includes_set = set()
+    compiler_includes_list = []
+
+    # Find compiler's default include dirs.
+    if compiler_path:
+        command = shlex.split(compiler_path)
+        command.extend(["-E", "-xc++", "-v", "-"])
+        proc = subprocess.Popen(
+            args=command,
+            stdin=subprocess.PIPE,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE,
+        )
+        output = proc.communicate()[1].decode("utf-8")
+        # Extract the list of include dirs from the output, which has this format:
+        #   ...
+        #   #include "..." search starts here:
+        #   #include <...> search starts here:
+        #    /usr/include/c++/4.6
+        #    /usr/local/include
+        #   End of search list.
+        #   ...
+        in_include_list = False
+        for line in output.splitlines():
+            if line.startswith("#include"):
+                in_include_list = True
+                continue
+            if line.startswith("End of search list."):
+                break
+            if in_include_list:
+                include_dir = line.strip()
+                if include_dir not in compiler_includes_list:
+                    compiler_includes_list.append(include_dir)
+
+    flavor = gyp.common.GetFlavor(params)
+    if flavor == "win":
+        generator_flags = params.get("generator_flags", {})
+    for target_name in target_list:
+        target = target_dicts[target_name]
+        if config_name in target["configurations"]:
+            config = target["configurations"][config_name]
+
+            # Look for any include dirs that were explicitly added via cflags. This
+            # may be done in gyp files to force certain includes to come at the end.
+            # TODO(jgreenwald): Change the gyp files to not abuse cflags for this, and
+            # remove this.
+            if flavor == "win":
+                msvs_settings = gyp.msvs_emulation.MsvsSettings(target, generator_flags)
+                cflags = msvs_settings.GetCflags(config_name)
+            else:
+                cflags = config["cflags"]
+            for cflag in cflags:
+                if cflag.startswith("-I"):
+                    include_dir = cflag[2:]
+                    if include_dir not in compiler_includes_list:
+                        compiler_includes_list.append(include_dir)
+
+            # Find standard gyp include dirs.
+            if "include_dirs" in config:
+                include_dirs = config["include_dirs"]
+                for shared_intermediate_dir in shared_intermediate_dirs:
+                    for include_dir in include_dirs:
+                        include_dir = include_dir.replace(
+                            "$SHARED_INTERMEDIATE_DIR", shared_intermediate_dir
+                        )
+                        if not os.path.isabs(include_dir):
+                            base_dir = os.path.dirname(target_name)
+
+                            include_dir = base_dir + "/" + include_dir
+                            include_dir = os.path.abspath(include_dir)
+
+                        gyp_includes_set.add(include_dir)
+
+    # Generate a list that has all the include dirs.
+    all_includes_list = list(gyp_includes_set)
+    all_includes_list.sort()
+    for compiler_include in compiler_includes_list:
+        if compiler_include not in gyp_includes_set:
+            all_includes_list.append(compiler_include)
+
+    # All done.
+    return all_includes_list
+
+
+def GetCompilerPath(target_list, data, options):
+    """Determine a command that can be used to invoke the compiler.
+
+  Returns:
+    If this is a gyp project that has explicit make settings, try to determine
+    the compiler from that.  Otherwise, see if a compiler was specified via the
+    CC_target environment variable.
+  """
+    # First, see if the compiler is configured in make's settings.
+    build_file, _, _ = gyp.common.ParseQualifiedTarget(target_list[0])
+    make_global_settings_dict = data[build_file].get("make_global_settings", {})
+    for key, value in make_global_settings_dict:
+        if key in ["CC", "CXX"]:
+            return os.path.join(options.toplevel_dir, value)
+
+    # Check to see if the compiler was specified as an environment variable.
+    for key in ["CC_target", "CC", "CXX"]:
+        compiler = os.environ.get(key)
+        if compiler:
+            return compiler
+
+    return "gcc"
+
+
+def GetAllDefines(target_list, target_dicts, data, config_name, params, compiler_path):
+    """Calculate the defines for a project.
+
+  Returns:
+    A dict that includes explicit defines declared in gyp files along with all
+    of the default defines that the compiler uses.
+  """
+
+    # Get defines declared in the gyp files.
+    all_defines = {}
+    flavor = gyp.common.GetFlavor(params)
+    if flavor == "win":
+        generator_flags = params.get("generator_flags", {})
+    for target_name in target_list:
+        target = target_dicts[target_name]
+
+        if flavor == "win":
+            msvs_settings = gyp.msvs_emulation.MsvsSettings(target, generator_flags)
+            extra_defines = msvs_settings.GetComputedDefines(config_name)
+        else:
+            extra_defines = []
+        if config_name in target["configurations"]:
+            config = target["configurations"][config_name]
+            target_defines = config["defines"]
+        else:
+            target_defines = []
+        for define in target_defines + extra_defines:
+            split_define = define.split("=", 1)
+            if len(split_define) == 1:
+                split_define.append("1")
+            if split_define[0].strip() in all_defines:
+                # Already defined
+                continue
+            all_defines[split_define[0].strip()] = split_define[1].strip()
+    # Get default compiler defines (if possible).
+    if flavor == "win":
+        return all_defines  # Default defines already processed in the loop above.
+    if compiler_path:
+        command = shlex.split(compiler_path)
+        command.extend(["-E", "-dM", "-"])
+        cpp_proc = subprocess.Popen(
+            args=command, cwd=".", stdin=subprocess.PIPE, stdout=subprocess.PIPE
+        )
+        cpp_output = cpp_proc.communicate()[0].decode("utf-8")
+        cpp_lines = cpp_output.split("\n")
+        for cpp_line in cpp_lines:
+            if not cpp_line.strip():
+                continue
+            cpp_line_parts = cpp_line.split(" ", 2)
+            key = cpp_line_parts[1]
+            if len(cpp_line_parts) >= 3:
+                val = cpp_line_parts[2]
+            else:
+                val = "1"
+            all_defines[key] = val
+
+    return all_defines
+
+
+def WriteIncludePaths(out, eclipse_langs, include_dirs):
+    """Write the includes section of a CDT settings export file."""
+
+    out.write(
+        '  <section name="org.eclipse.cdt.internal.ui.wizards.'
+        'settingswizards.IncludePaths">\n'
+    )
+    out.write('    <language name="holder for library settings"></language>\n')
+    for lang in eclipse_langs:
+        out.write('    <language name="%s">\n' % lang)
+        for include_dir in include_dirs:
+            out.write(
+                '      <includepath workspace_path="false">%s</includepath>\n'
+                % include_dir
+            )
+        out.write("    </language>\n")
+    out.write("  </section>\n")
+
+
+def WriteMacros(out, eclipse_langs, defines):
+    """Write the macros section of a CDT settings export file."""
+
+    out.write(
+        '  <section name="org.eclipse.cdt.internal.ui.wizards.'
+        'settingswizards.Macros">\n'
+    )
+    out.write('    <language name="holder for library settings"></language>\n')
+    for lang in eclipse_langs:
+        out.write('    <language name="%s">\n' % lang)
+        for key in sorted(defines):
+            out.write(
+                "      <macro><name>%s</name><value>%s</value></macro>\n"
+                % (escape(key), escape(defines[key]))
+            )
+        out.write("    </language>\n")
+    out.write("  </section>\n")
+
+
+def GenerateOutputForConfig(target_list, target_dicts, data, params, config_name):
+    options = params["options"]
+    generator_flags = params.get("generator_flags", {})
+
+    # build_dir: relative path from source root to our output files.
+    # e.g. "out/Debug"
+    build_dir = os.path.join(generator_flags.get("output_dir", "out"), config_name)
+
+    toplevel_build = os.path.join(options.toplevel_dir, build_dir)
+    # Ninja uses out/Debug/gen while make uses out/Debug/obj/gen as the
+    # SHARED_INTERMEDIATE_DIR. Include both possible locations.
+    shared_intermediate_dirs = [
+        os.path.join(toplevel_build, "obj", "gen"),
+        os.path.join(toplevel_build, "gen"),
+    ]
+
+    GenerateCdtSettingsFile(
+        target_list,
+        target_dicts,
+        data,
+        params,
+        config_name,
+        os.path.join(toplevel_build, "eclipse-cdt-settings.xml"),
+        options,
+        shared_intermediate_dirs,
+    )
+    GenerateClasspathFile(
+        target_list,
+        target_dicts,
+        options.toplevel_dir,
+        toplevel_build,
+        os.path.join(toplevel_build, "eclipse-classpath.xml"),
+    )
+
+
+def GenerateCdtSettingsFile(
+    target_list,
+    target_dicts,
+    data,
+    params,
+    config_name,
+    out_name,
+    options,
+    shared_intermediate_dirs,
+):
+    gyp.common.EnsureDirExists(out_name)
+    with open(out_name, "w") as out:
+        out.write('<?xml version="1.0" encoding="UTF-8"?>\n')
+        out.write("<cdtprojectproperties>\n")
+
+        eclipse_langs = [
+            "C++ Source File",
+            "C Source File",
+            "Assembly Source File",
+            "GNU C++",
+            "GNU C",
+            "Assembly",
+        ]
+        compiler_path = GetCompilerPath(target_list, data, options)
+        include_dirs = GetAllIncludeDirectories(
+            target_list,
+            target_dicts,
+            shared_intermediate_dirs,
+            config_name,
+            params,
+            compiler_path,
+        )
+        WriteIncludePaths(out, eclipse_langs, include_dirs)
+        defines = GetAllDefines(
+            target_list, target_dicts, data, config_name, params, compiler_path
+        )
+        WriteMacros(out, eclipse_langs, defines)
+
+        out.write("</cdtprojectproperties>\n")
+
+
+def GenerateClasspathFile(
+    target_list, target_dicts, toplevel_dir, toplevel_build, out_name
+):
+    """Generates a classpath file suitable for symbol navigation and code
+  completion of Java code (such as in Android projects) by finding all
+  .java and .jar files used as action inputs."""
+    gyp.common.EnsureDirExists(out_name)
+    result = ET.Element("classpath")
+
+    def AddElements(kind, paths):
+        # First, we need to normalize the paths so they are all relative to the
+        # toplevel dir.
+        rel_paths = set()
+        for path in paths:
+            if os.path.isabs(path):
+                rel_paths.add(os.path.relpath(path, toplevel_dir))
+            else:
+                rel_paths.add(path)
+
+        for path in sorted(rel_paths):
+            entry_element = ET.SubElement(result, "classpathentry")
+            entry_element.set("kind", kind)
+            entry_element.set("path", path)
+
+    AddElements("lib", GetJavaJars(target_list, target_dicts, toplevel_dir))
+    AddElements("src", GetJavaSourceDirs(target_list, target_dicts, toplevel_dir))
+    # Include the standard JRE container and a dummy out folder
+    AddElements("con", ["org.eclipse.jdt.launching.JRE_CONTAINER"])
+    # Include a dummy out folder so that Eclipse doesn't use the default /bin
+    # folder in the root of the project.
+    AddElements("output", [os.path.join(toplevel_build, ".eclipse-java-build")])
+
+    ET.ElementTree(result).write(out_name)
+
+
+def GetJavaJars(target_list, target_dicts, toplevel_dir):
+    """Generates a sequence of all .jars used as inputs."""
+    for target_name in target_list:
+        target = target_dicts[target_name]
+        for action in target.get("actions", []):
+            for input_ in action["inputs"]:
+                if os.path.splitext(input_)[1] == ".jar" and not input_.startswith("$"):
+                    if os.path.isabs(input_):
+                        yield input_
+                    else:
+                        yield os.path.join(os.path.dirname(target_name), input_)
+
+
+def GetJavaSourceDirs(target_list, target_dicts, toplevel_dir):
+    """Generates a sequence of all likely java package root directories."""
+    for target_name in target_list:
+        target = target_dicts[target_name]
+        for action in target.get("actions", []):
+            for input_ in action["inputs"]:
+                if os.path.splitext(input_)[1] == ".java" and not input_.startswith(
+                    "$"
+                ):
+                    dir_ = os.path.dirname(
+                        os.path.join(os.path.dirname(target_name), input_)
+                    )
+                    # If there is a parent 'src' or 'java' folder, navigate up to it -
+                    # these are canonical package root names in Chromium.  This will
+                    # break if 'src' or 'java' exists in the package structure. This
+                    # could be further improved by inspecting the java file for the
+                    # package name if this proves to be too fragile in practice.
+                    parent_search = dir_
+                    while os.path.basename(parent_search) not in ["src", "java"]:
+                        parent_search, _ = os.path.split(parent_search)
+                        if not parent_search or parent_search == toplevel_dir:
+                            # Didn't find a known root, just return the original path
+                            yield dir_
+                            break
+                    else:
+                        yield parent_search
+
+
+def GenerateOutput(target_list, target_dicts, data, params):
+    """Generate an XML settings file that can be imported into a CDT project."""
+
+    if params["options"].generator_output:
+        raise NotImplementedError("--generator_output not implemented for eclipse")
+
+    user_config = params.get("generator_flags", {}).get("config", None)
+    if user_config:
+        GenerateOutputForConfig(target_list, target_dicts, data, params, user_config)
+    else:
+        config_names = target_dicts[target_list[0]]["configurations"]
+        for config_name in config_names:
+            GenerateOutputForConfig(
+                target_list, target_dicts, data, params, config_name
+            )
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/gypd.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/gypd.py
new file mode 100644
index 0000000..4171704
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/gypd.py
@@ -0,0 +1,89 @@
+# Copyright (c) 2011 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""gypd output module
+
+This module produces gyp input as its output.  Output files are given the
+.gypd extension to avoid overwriting the .gyp files that they are generated
+from.  Internal references to .gyp files (such as those found in
+"dependencies" sections) are not adjusted to point to .gypd files instead;
+unlike other paths, which are relative to the .gyp or .gypd file, such paths
+are relative to the directory from which gyp was run to create the .gypd file.
+
+This generator module is intended to be a sample and a debugging aid, hence
+the "d" for "debug" in .gypd.  It is useful to inspect the results of the
+various merges, expansions, and conditional evaluations performed by gyp
+and to see a representation of what would be fed to a generator module.
+
+It's not advisable to rename .gypd files produced by this module to .gyp,
+because they will have all merges, expansions, and evaluations already
+performed and the relevant constructs not present in the output; paths to
+dependencies may be wrong; and various sections that do not belong in .gyp
+files such as such as "included_files" and "*_excluded" will be present.
+Output will also be stripped of comments.  This is not intended to be a
+general-purpose gyp pretty-printer; for that, you probably just want to
+run "pprint.pprint(eval(open('source.gyp').read()))", which will still strip
+comments but won't do all of the other things done to this module's output.
+
+The specific formatting of the output generated by this module is subject
+to change.
+"""
+
+
+import gyp.common
+import pprint
+
+
+# These variables should just be spit back out as variable references.
+_generator_identity_variables = [
+    "CONFIGURATION_NAME",
+    "EXECUTABLE_PREFIX",
+    "EXECUTABLE_SUFFIX",
+    "INTERMEDIATE_DIR",
+    "LIB_DIR",
+    "PRODUCT_DIR",
+    "RULE_INPUT_ROOT",
+    "RULE_INPUT_DIRNAME",
+    "RULE_INPUT_EXT",
+    "RULE_INPUT_NAME",
+    "RULE_INPUT_PATH",
+    "SHARED_INTERMEDIATE_DIR",
+    "SHARED_LIB_DIR",
+    "SHARED_LIB_PREFIX",
+    "SHARED_LIB_SUFFIX",
+    "STATIC_LIB_PREFIX",
+    "STATIC_LIB_SUFFIX",
+]
+
+# gypd doesn't define a default value for OS like many other generator
+# modules.  Specify "-D OS=whatever" on the command line to provide a value.
+generator_default_variables = {}
+
+# gypd supports multiple toolsets
+generator_supports_multiple_toolsets = True
+
+# TODO(mark): This always uses <, which isn't right.  The input module should
+# notify the generator to tell it which phase it is operating in, and this
+# module should use < for the early phase and then switch to > for the late
+# phase.  Bonus points for carrying @ back into the output too.
+for v in _generator_identity_variables:
+    generator_default_variables[v] = "<(%s)" % v
+
+
+def GenerateOutput(target_list, target_dicts, data, params):
+    output_files = {}
+    for qualified_target in target_list:
+        [input_file, target] = gyp.common.ParseQualifiedTarget(qualified_target)[0:2]
+
+        if input_file[-4:] != ".gyp":
+            continue
+        input_file_stem = input_file[:-4]
+        output_file = input_file_stem + params["options"].suffix + ".gypd"
+
+        output_files[output_file] = output_files.get(output_file, input_file)
+
+    for output_file, input_file in output_files.items():
+        output = open(output_file, "w")
+        pprint.pprint(data[input_file], output)
+        output.close()
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/gypsh.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/gypsh.py
new file mode 100644
index 0000000..82a07dd
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/gypsh.py
@@ -0,0 +1,58 @@
+# Copyright (c) 2011 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""gypsh output module
+
+gypsh is a GYP shell.  It's not really a generator per se.  All it does is
+fire up an interactive Python session with a few local variables set to the
+variables passed to the generator.  Like gypd, it's intended as a debugging
+aid, to facilitate the exploration of .gyp structures after being processed
+by the input module.
+
+The expected usage is "gyp -f gypsh -D OS=desired_os".
+"""
+
+
+import code
+import sys
+
+
+# All of this stuff about generator variables was lovingly ripped from gypd.py.
+# That module has a much better description of what's going on and why.
+_generator_identity_variables = [
+    "EXECUTABLE_PREFIX",
+    "EXECUTABLE_SUFFIX",
+    "INTERMEDIATE_DIR",
+    "PRODUCT_DIR",
+    "RULE_INPUT_ROOT",
+    "RULE_INPUT_DIRNAME",
+    "RULE_INPUT_EXT",
+    "RULE_INPUT_NAME",
+    "RULE_INPUT_PATH",
+    "SHARED_INTERMEDIATE_DIR",
+]
+
+generator_default_variables = {}
+
+for v in _generator_identity_variables:
+    generator_default_variables[v] = "<(%s)" % v
+
+
+def GenerateOutput(target_list, target_dicts, data, params):
+    locals = {
+        "target_list": target_list,
+        "target_dicts": target_dicts,
+        "data": data,
+    }
+
+    # Use a banner that looks like the stock Python one and like what
+    # code.interact uses by default, but tack on something to indicate what
+    # locals are available, and identify gypsh.
+    banner = "Python {} on {}\nlocals.keys() = {}\ngypsh".format(
+        sys.version,
+        sys.platform,
+        repr(sorted(locals.keys())),
+    )
+
+    code.interact(banner, local=locals)
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/make.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/make.py
new file mode 100644
index 0000000..c595f20
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/make.py
@@ -0,0 +1,2518 @@
+# Copyright (c) 2013 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Notes:
+#
+# This is all roughly based on the Makefile system used by the Linux
+# kernel, but is a non-recursive make -- we put the entire dependency
+# graph in front of make and let it figure it out.
+#
+# The code below generates a separate .mk file for each target, but
+# all are sourced by the top-level Makefile.  This means that all
+# variables in .mk-files clobber one another.  Be careful to use :=
+# where appropriate for immediate evaluation, and similarly to watch
+# that you're not relying on a variable value to last between different
+# .mk files.
+#
+# TODOs:
+#
+# Global settings and utility functions are currently stuffed in the
+# toplevel Makefile.  It may make sense to generate some .mk files on
+# the side to keep the files readable.
+
+
+import os
+import re
+import subprocess
+import gyp
+import gyp.common
+import gyp.xcode_emulation
+from gyp.common import GetEnvironFallback
+
+import hashlib
+
+generator_default_variables = {
+    "EXECUTABLE_PREFIX": "",
+    "EXECUTABLE_SUFFIX": "",
+    "STATIC_LIB_PREFIX": "lib",
+    "SHARED_LIB_PREFIX": "lib",
+    "STATIC_LIB_SUFFIX": ".a",
+    "INTERMEDIATE_DIR": "$(obj).$(TOOLSET)/$(TARGET)/geni",
+    "SHARED_INTERMEDIATE_DIR": "$(obj)/gen",
+    "PRODUCT_DIR": "$(builddir)",
+    "RULE_INPUT_ROOT": "%(INPUT_ROOT)s",  # This gets expanded by Python.
+    "RULE_INPUT_DIRNAME": "%(INPUT_DIRNAME)s",  # This gets expanded by Python.
+    "RULE_INPUT_PATH": "$(abspath $<)",
+    "RULE_INPUT_EXT": "$(suffix $<)",
+    "RULE_INPUT_NAME": "$(notdir $<)",
+    "CONFIGURATION_NAME": "$(BUILDTYPE)",
+}
+
+# Make supports multiple toolsets
+generator_supports_multiple_toolsets = True
+
+# Request sorted dependencies in the order from dependents to dependencies.
+generator_wants_sorted_dependencies = False
+
+# Placates pylint.
+generator_additional_non_configuration_keys = []
+generator_additional_path_sections = []
+generator_extra_sources_for_rules = []
+generator_filelist_paths = None
+
+
+def CalculateVariables(default_variables, params):
+    """Calculate additional variables for use in the build (called by gyp)."""
+    flavor = gyp.common.GetFlavor(params)
+    if flavor == "mac":
+        default_variables.setdefault("OS", "mac")
+        default_variables.setdefault("SHARED_LIB_SUFFIX", ".dylib")
+        default_variables.setdefault(
+            "SHARED_LIB_DIR", generator_default_variables["PRODUCT_DIR"]
+        )
+        default_variables.setdefault(
+            "LIB_DIR", generator_default_variables["PRODUCT_DIR"]
+        )
+
+        # Copy additional generator configuration data from Xcode, which is shared
+        # by the Mac Make generator.
+        import gyp.generator.xcode as xcode_generator
+
+        global generator_additional_non_configuration_keys
+        generator_additional_non_configuration_keys = getattr(
+            xcode_generator, "generator_additional_non_configuration_keys", []
+        )
+        global generator_additional_path_sections
+        generator_additional_path_sections = getattr(
+            xcode_generator, "generator_additional_path_sections", []
+        )
+        global generator_extra_sources_for_rules
+        generator_extra_sources_for_rules = getattr(
+            xcode_generator, "generator_extra_sources_for_rules", []
+        )
+        COMPILABLE_EXTENSIONS.update({".m": "objc", ".mm": "objcxx"})
+    else:
+        operating_system = flavor
+        if flavor == "android":
+            operating_system = "linux"  # Keep this legacy behavior for now.
+        default_variables.setdefault("OS", operating_system)
+        if flavor == "aix":
+            default_variables.setdefault("SHARED_LIB_SUFFIX", ".a")
+        else:
+            default_variables.setdefault("SHARED_LIB_SUFFIX", ".so")
+        default_variables.setdefault("SHARED_LIB_DIR", "$(builddir)/lib.$(TOOLSET)")
+        default_variables.setdefault("LIB_DIR", "$(obj).$(TOOLSET)")
+
+
+def CalculateGeneratorInputInfo(params):
+    """Calculate the generator specific info that gets fed to input (called by
+    gyp)."""
+    generator_flags = params.get("generator_flags", {})
+    android_ndk_version = generator_flags.get("android_ndk_version", None)
+    # Android NDK requires a strict link order.
+    if android_ndk_version:
+        global generator_wants_sorted_dependencies
+        generator_wants_sorted_dependencies = True
+
+    output_dir = params["options"].generator_output or params["options"].toplevel_dir
+    builddir_name = generator_flags.get("output_dir", "out")
+    qualified_out_dir = os.path.normpath(
+        os.path.join(output_dir, builddir_name, "gypfiles")
+    )
+
+    global generator_filelist_paths
+    generator_filelist_paths = {
+        "toplevel": params["options"].toplevel_dir,
+        "qualified_out_dir": qualified_out_dir,
+    }
+
+
+# The .d checking code below uses these functions:
+# wildcard, sort, foreach, shell, wordlist
+# wildcard can handle spaces, the rest can't.
+# Since I could find no way to make foreach work with spaces in filenames
+# correctly, the .d files have spaces replaced with another character. The .d
+# file for
+#     Chromium\ Framework.framework/foo
+# is for example
+#     out/Release/.deps/out/Release/Chromium?Framework.framework/foo
+# This is the replacement character.
+SPACE_REPLACEMENT = "?"
+
+
+LINK_COMMANDS_LINUX = """\
+quiet_cmd_alink = AR($(TOOLSET)) $@
+cmd_alink = rm -f $@ && $(AR.$(TOOLSET)) crs $@ $(filter %.o,$^)
+
+quiet_cmd_alink_thin = AR($(TOOLSET)) $@
+cmd_alink_thin = rm -f $@ && $(AR.$(TOOLSET)) crsT $@ $(filter %.o,$^)
+
+# Due to circular dependencies between libraries :(, we wrap the
+# special "figure out circular dependencies" flags around the entire
+# input list during linking.
+quiet_cmd_link = LINK($(TOOLSET)) $@
+cmd_link = $(LINK.$(TOOLSET)) -o $@ $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,--start-group $(LD_INPUTS) $(LIBS) -Wl,--end-group
+
+# We support two kinds of shared objects (.so):
+# 1) shared_library, which is just bundling together many dependent libraries
+# into a link line.
+# 2) loadable_module, which is generating a module intended for dlopen().
+#
+# They differ only slightly:
+# In the former case, we want to package all dependent code into the .so.
+# In the latter case, we want to package just the API exposed by the
+# outermost module.
+# This means shared_library uses --whole-archive, while loadable_module doesn't.
+# (Note that --whole-archive is incompatible with the --start-group used in
+# normal linking.)
+
+# Other shared-object link notes:
+# - Set SONAME to the library filename so our binaries don't reference
+# the local, absolute paths used on the link command-line.
+quiet_cmd_solink = SOLINK($(TOOLSET)) $@
+cmd_solink = $(LINK.$(TOOLSET)) -o $@ -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -Wl,--whole-archive $(LD_INPUTS) -Wl,--no-whole-archive $(LIBS)
+
+quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
+cmd_solink_module = $(LINK.$(TOOLSET)) -o $@ -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -Wl,--start-group $(filter-out FORCE_DO_CMD, $^) -Wl,--end-group $(LIBS)
+"""  # noqa: E501
+
+LINK_COMMANDS_MAC = """\
+quiet_cmd_alink = LIBTOOL-STATIC $@
+cmd_alink = rm -f $@ && ./gyp-mac-tool filter-libtool libtool $(GYP_LIBTOOLFLAGS) -static -o $@ $(filter %.o,$^)
+
+quiet_cmd_link = LINK($(TOOLSET)) $@
+cmd_link = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o "$@" $(LD_INPUTS) $(LIBS)
+
+quiet_cmd_solink = SOLINK($(TOOLSET)) $@
+cmd_solink = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o "$@" $(LD_INPUTS) $(LIBS)
+
+quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
+cmd_solink_module = $(LINK.$(TOOLSET)) -bundle $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(filter-out FORCE_DO_CMD, $^) $(LIBS)
+"""  # noqa: E501
+
+LINK_COMMANDS_ANDROID = """\
+quiet_cmd_alink = AR($(TOOLSET)) $@
+cmd_alink = rm -f $@ && $(AR.$(TOOLSET)) crs $@ $(filter %.o,$^)
+
+quiet_cmd_alink_thin = AR($(TOOLSET)) $@
+cmd_alink_thin = rm -f $@ && $(AR.$(TOOLSET)) crsT $@ $(filter %.o,$^)
+
+# Due to circular dependencies between libraries :(, we wrap the
+# special "figure out circular dependencies" flags around the entire
+# input list during linking.
+quiet_cmd_link = LINK($(TOOLSET)) $@
+quiet_cmd_link_host = LINK($(TOOLSET)) $@
+cmd_link = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ -Wl,--start-group $(LD_INPUTS) -Wl,--end-group $(LIBS)
+cmd_link_host = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ -Wl,--start-group $(LD_INPUTS) -Wl,--end-group $(LIBS)
+
+# Other shared-object link notes:
+# - Set SONAME to the library filename so our binaries don't reference
+# the local, absolute paths used on the link command-line.
+quiet_cmd_solink = SOLINK($(TOOLSET)) $@
+cmd_solink = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -o $@ -Wl,--whole-archive $(LD_INPUTS) -Wl,--no-whole-archive $(LIBS)
+
+quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
+cmd_solink_module = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -o $@ -Wl,--start-group $(filter-out FORCE_DO_CMD, $^) -Wl,--end-group $(LIBS)
+quiet_cmd_solink_module_host = SOLINK_MODULE($(TOOLSET)) $@
+cmd_solink_module_host = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -o $@ $(filter-out FORCE_DO_CMD, $^) $(LIBS)
+"""  # noqa: E501
+
+
+LINK_COMMANDS_AIX = """\
+quiet_cmd_alink = AR($(TOOLSET)) $@
+cmd_alink = rm -f $@ && $(AR.$(TOOLSET)) -X32_64 crs $@ $(filter %.o,$^)
+
+quiet_cmd_alink_thin = AR($(TOOLSET)) $@
+cmd_alink_thin = rm -f $@ && $(AR.$(TOOLSET)) -X32_64 crs $@ $(filter %.o,$^)
+
+quiet_cmd_link = LINK($(TOOLSET)) $@
+cmd_link = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(LD_INPUTS) $(LIBS)
+
+quiet_cmd_solink = SOLINK($(TOOLSET)) $@
+cmd_solink = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(LD_INPUTS) $(LIBS)
+
+quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
+cmd_solink_module = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(filter-out FORCE_DO_CMD, $^) $(LIBS)
+"""  # noqa: E501
+
+
+LINK_COMMANDS_OS390 = """\
+quiet_cmd_alink = AR($(TOOLSET)) $@
+cmd_alink = rm -f $@ && $(AR.$(TOOLSET)) crs $@ $(filter %.o,$^)
+
+quiet_cmd_alink_thin = AR($(TOOLSET)) $@
+cmd_alink_thin = rm -f $@ && $(AR.$(TOOLSET)) crsT $@ $(filter %.o,$^)
+
+quiet_cmd_link = LINK($(TOOLSET)) $@
+cmd_link = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(LD_INPUTS) $(LIBS)
+
+quiet_cmd_solink = SOLINK($(TOOLSET)) $@
+cmd_solink = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(LD_INPUTS) $(LIBS) -Wl,DLL
+
+quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
+cmd_solink_module = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ $(filter-out FORCE_DO_CMD, $^) $(LIBS) -Wl,DLL
+"""  # noqa: E501
+
+
+# Header of toplevel Makefile.
+# This should go into the build tree, but it's easier to keep it here for now.
+SHARED_HEADER = (
+    """\
+# We borrow heavily from the kernel build setup, though we are simpler since
+# we don't have Kconfig tweaking settings on us.
+
+# The implicit make rules have it looking for RCS files, among other things.
+# We instead explicitly write all the rules we care about.
+# It's even quicker (saves ~200ms) to pass -r on the command line.
+MAKEFLAGS=-r
+
+# The source directory tree.
+srcdir := %(srcdir)s
+abs_srcdir := $(abspath $(srcdir))
+
+# The name of the builddir.
+builddir_name ?= %(builddir)s
+
+# The V=1 flag on command line makes us verbosely print command lines.
+ifdef V
+  quiet=
+else
+  quiet=quiet_
+endif
+
+# Specify BUILDTYPE=Release on the command line for a release build.
+BUILDTYPE ?= %(default_configuration)s
+
+# Directory all our build output goes into.
+# Note that this must be two directories beneath src/ for unit tests to pass,
+# as they reach into the src/ directory for data with relative paths.
+builddir ?= $(builddir_name)/$(BUILDTYPE)
+abs_builddir := $(abspath $(builddir))
+depsdir := $(builddir)/.deps
+
+# Object output directory.
+obj := $(builddir)/obj
+abs_obj := $(abspath $(obj))
+
+# We build up a list of every single one of the targets so we can slurp in the
+# generated dependency rule Makefiles in one pass.
+all_deps :=
+
+%(make_global_settings)s
+
+CC.target ?= %(CC.target)s
+CFLAGS.target ?= $(CPPFLAGS) $(CFLAGS)
+CXX.target ?= %(CXX.target)s
+CXXFLAGS.target ?= $(CPPFLAGS) $(CXXFLAGS)
+LINK.target ?= %(LINK.target)s
+LDFLAGS.target ?= $(LDFLAGS)
+AR.target ?= $(AR)
+
+# C++ apps need to be linked with g++.
+LINK ?= $(CXX.target)
+
+# TODO(evan): move all cross-compilation logic to gyp-time so we don't need
+# to replicate this environment fallback in make as well.
+CC.host ?= %(CC.host)s
+CFLAGS.host ?= $(CPPFLAGS_host) $(CFLAGS_host)
+CXX.host ?= %(CXX.host)s
+CXXFLAGS.host ?= $(CPPFLAGS_host) $(CXXFLAGS_host)
+LINK.host ?= %(LINK.host)s
+LDFLAGS.host ?= $(LDFLAGS_host)
+AR.host ?= %(AR.host)s
+
+# Define a dir function that can handle spaces.
+# http://www.gnu.org/software/make/manual/make.html#Syntax-of-Functions
+# "leading spaces cannot appear in the text of the first argument as written.
+# These characters can be put into the argument value by variable substitution."
+empty :=
+space := $(empty) $(empty)
+
+# http://stackoverflow.com/questions/1189781/using-make-dir-or-notdir-on-a-path-with-spaces
+replace_spaces = $(subst $(space),"""
+    + SPACE_REPLACEMENT
+    + """,$1)
+unreplace_spaces = $(subst """
+    + SPACE_REPLACEMENT
+    + """,$(space),$1)
+dirx = $(call unreplace_spaces,$(dir $(call replace_spaces,$1)))
+
+# Flags to make gcc output dependency info.  Note that you need to be
+# careful here to use the flags that ccache and distcc can understand.
+# We write to a dep file on the side first and then rename at the end
+# so we can't end up with a broken dep file.
+depfile = $(depsdir)/$(call replace_spaces,$@).d
+DEPFLAGS = %(makedep_args)s -MF $(depfile).raw
+
+# We have to fixup the deps output in a few ways.
+# (1) the file output should mention the proper .o file.
+# ccache or distcc lose the path to the target, so we convert a rule of
+# the form:
+#   foobar.o: DEP1 DEP2
+# into
+#   path/to/foobar.o: DEP1 DEP2
+# (2) we want missing files not to cause us to fail to build.
+# We want to rewrite
+#   foobar.o: DEP1 DEP2 \\
+#               DEP3
+# to
+#   DEP1:
+#   DEP2:
+#   DEP3:
+# so if the files are missing, they're just considered phony rules.
+# We have to do some pretty insane escaping to get those backslashes
+# and dollar signs past make, the shell, and sed at the same time.
+# Doesn't work with spaces, but that's fine: .d files have spaces in
+# their names replaced with other characters."""
+    r"""
+define fixup_dep
+# The depfile may not exist if the input file didn't have any #includes.
+touch $(depfile).raw
+# Fixup path as in (1).
+sed -e "s|^$(notdir $@)|$@|" $(depfile).raw >> $(depfile)
+# Add extra rules as in (2).
+# We remove slashes and replace spaces with new lines;
+# remove blank lines;
+# delete the first line and append a colon to the remaining lines.
+sed -e 's|\\||' -e 'y| |\n|' $(depfile).raw |\
+  grep -v '^$$'                             |\
+  sed -e 1d -e 's|$$|:|'                     \
+    >> $(depfile)
+rm $(depfile).raw
+endef
+"""
+    """
+# Command definitions:
+# - cmd_foo is the actual command to run;
+# - quiet_cmd_foo is the brief-output summary of the command.
+
+quiet_cmd_cc = CC($(TOOLSET)) $@
+cmd_cc = $(CC.$(TOOLSET)) -o $@ $< $(GYP_CFLAGS) $(DEPFLAGS) $(CFLAGS.$(TOOLSET)) -c
+
+quiet_cmd_cxx = CXX($(TOOLSET)) $@
+cmd_cxx = $(CXX.$(TOOLSET)) -o $@ $< $(GYP_CXXFLAGS) $(DEPFLAGS) $(CXXFLAGS.$(TOOLSET)) -c
+%(extra_commands)s
+quiet_cmd_touch = TOUCH $@
+cmd_touch = touch $@
+
+quiet_cmd_copy = COPY $@
+# send stderr to /dev/null to ignore messages when linking directories.
+cmd_copy = ln -f "$<" "$@" 2>/dev/null || (rm -rf "$@" && cp %(copy_archive_args)s "$<" "$@")
+
+%(link_commands)s
+"""  # noqa: E501
+    r"""
+# Define an escape_quotes function to escape single quotes.
+# This allows us to handle quotes properly as long as we always use
+# use single quotes and escape_quotes.
+escape_quotes = $(subst ','\'',$(1))
+# This comment is here just to include a ' to unconfuse syntax highlighting.
+# Define an escape_vars function to escape '$' variable syntax.
+# This allows us to read/write command lines with shell variables (e.g.
+# $LD_LIBRARY_PATH), without triggering make substitution.
+escape_vars = $(subst $$,$$$$,$(1))
+# Helper that expands to a shell command to echo a string exactly as it is in
+# make. This uses printf instead of echo because printf's behaviour with respect
+# to escape sequences is more portable than echo's across different shells
+# (e.g., dash, bash).
+exact_echo = printf '%%s\n' '$(call escape_quotes,$(1))'
+"""
+    """
+# Helper to compare the command we're about to run against the command
+# we logged the last time we ran the command.  Produces an empty
+# string (false) when the commands match.
+# Tricky point: Make has no string-equality test function.
+# The kernel uses the following, but it seems like it would have false
+# positives, where one string reordered its arguments.
+#   arg_check = $(strip $(filter-out $(cmd_$(1)), $(cmd_$@)) \\
+#                       $(filter-out $(cmd_$@), $(cmd_$(1))))
+# We instead substitute each for the empty string into the other, and
+# say they're equal if both substitutions produce the empty string.
+# .d files contain """
+    + SPACE_REPLACEMENT
+    + """ instead of spaces, take that into account.
+command_changed = $(or $(subst $(cmd_$(1)),,$(cmd_$(call replace_spaces,$@))),\\
+                       $(subst $(cmd_$(call replace_spaces,$@)),,$(cmd_$(1))))
+
+# Helper that is non-empty when a prerequisite changes.
+# Normally make does this implicitly, but we force rules to always run
+# so we can check their command lines.
+#   $? -- new prerequisites
+#   $| -- order-only dependencies
+prereq_changed = $(filter-out FORCE_DO_CMD,$(filter-out $|,$?))
+
+# Helper that executes all postbuilds until one fails.
+define do_postbuilds
+  @E=0;\\
+  for p in $(POSTBUILDS); do\\
+    eval $$p;\\
+    E=$$?;\\
+    if [ $$E -ne 0 ]; then\\
+      break;\\
+    fi;\\
+  done;\\
+  if [ $$E -ne 0 ]; then\\
+    rm -rf "$@";\\
+    exit $$E;\\
+  fi
+endef
+
+# do_cmd: run a command via the above cmd_foo names, if necessary.
+# Should always run for a given target to handle command-line changes.
+# Second argument, if non-zero, makes it do asm/C/C++ dependency munging.
+# Third argument, if non-zero, makes it do POSTBUILDS processing.
+# Note: We intentionally do NOT call dirx for depfile, since it contains """
+    + SPACE_REPLACEMENT
+    + """ for
+# spaces already and dirx strips the """
+    + SPACE_REPLACEMENT
+    + """ characters.
+define do_cmd
+$(if $(or $(command_changed),$(prereq_changed)),
+  @$(call exact_echo,  $($(quiet)cmd_$(1)))
+  @mkdir -p "$(call dirx,$@)" "$(dir $(depfile))"
+  $(if $(findstring flock,$(word %(flock_index)d,$(cmd_$1))),
+    @$(cmd_$(1))
+    @echo "  $(quiet_cmd_$(1)): Finished",
+    @$(cmd_$(1))
+  )
+  @$(call exact_echo,$(call escape_vars,cmd_$(call replace_spaces,$@) := $(cmd_$(1)))) > $(depfile)
+  @$(if $(2),$(fixup_dep))
+  $(if $(and $(3), $(POSTBUILDS)),
+    $(call do_postbuilds)
+  )
+)
+endef
+
+# Declare the "%(default_target)s" target first so it is the default,
+# even though we don't have the deps yet.
+.PHONY: %(default_target)s
+%(default_target)s:
+
+# make looks for ways to re-generate included makefiles, but in our case, we
+# don't have a direct way. Explicitly telling make that it has nothing to do
+# for them makes it go faster.
+%%.d: ;
+
+# Use FORCE_DO_CMD to force a target to run.  Should be coupled with
+# do_cmd.
+.PHONY: FORCE_DO_CMD
+FORCE_DO_CMD:
+
+"""  # noqa: E501
+)
+
+SHARED_HEADER_MAC_COMMANDS = """
+quiet_cmd_objc = CXX($(TOOLSET)) $@
+cmd_objc = $(CC.$(TOOLSET)) $(GYP_OBJCFLAGS) $(DEPFLAGS) -c -o $@ $<
+
+quiet_cmd_objcxx = CXX($(TOOLSET)) $@
+cmd_objcxx = $(CXX.$(TOOLSET)) $(GYP_OBJCXXFLAGS) $(DEPFLAGS) -c -o $@ $<
+
+# Commands for precompiled header files.
+quiet_cmd_pch_c = CXX($(TOOLSET)) $@
+cmd_pch_c = $(CC.$(TOOLSET)) $(GYP_PCH_CFLAGS) $(DEPFLAGS) $(CXXFLAGS.$(TOOLSET)) -c -o $@ $<
+quiet_cmd_pch_cc = CXX($(TOOLSET)) $@
+cmd_pch_cc = $(CC.$(TOOLSET)) $(GYP_PCH_CXXFLAGS) $(DEPFLAGS) $(CXXFLAGS.$(TOOLSET)) -c -o $@ $<
+quiet_cmd_pch_m = CXX($(TOOLSET)) $@
+cmd_pch_m = $(CC.$(TOOLSET)) $(GYP_PCH_OBJCFLAGS) $(DEPFLAGS) -c -o $@ $<
+quiet_cmd_pch_mm = CXX($(TOOLSET)) $@
+cmd_pch_mm = $(CC.$(TOOLSET)) $(GYP_PCH_OBJCXXFLAGS) $(DEPFLAGS) -c -o $@ $<
+
+# gyp-mac-tool is written next to the root Makefile by gyp.
+# Use $(4) for the command, since $(2) and $(3) are used as flag by do_cmd
+# already.
+quiet_cmd_mac_tool = MACTOOL $(4) $<
+cmd_mac_tool = ./gyp-mac-tool $(4) $< "$@"
+
+quiet_cmd_mac_package_framework = PACKAGE FRAMEWORK $@
+cmd_mac_package_framework = ./gyp-mac-tool package-framework "$@" $(4)
+
+quiet_cmd_infoplist = INFOPLIST $@
+cmd_infoplist = $(CC.$(TOOLSET)) -E -P -Wno-trigraphs -x c $(INFOPLIST_DEFINES) "$<" -o "$@"
+"""  # noqa: E501
+
+
+def WriteRootHeaderSuffixRules(writer):
+    extensions = sorted(COMPILABLE_EXTENSIONS.keys(), key=str.lower)
+
+    writer.write("# Suffix rules, putting all outputs into $(obj).\n")
+    for ext in extensions:
+        writer.write("$(obj).$(TOOLSET)/%%.o: $(srcdir)/%%%s FORCE_DO_CMD\n" % ext)
+        writer.write("\t@$(call do_cmd,%s,1)\n" % COMPILABLE_EXTENSIONS[ext])
+
+    writer.write("\n# Try building from generated source, too.\n")
+    for ext in extensions:
+        writer.write(
+            "$(obj).$(TOOLSET)/%%.o: $(obj).$(TOOLSET)/%%%s FORCE_DO_CMD\n" % ext
+        )
+        writer.write("\t@$(call do_cmd,%s,1)\n" % COMPILABLE_EXTENSIONS[ext])
+    writer.write("\n")
+    for ext in extensions:
+        writer.write("$(obj).$(TOOLSET)/%%.o: $(obj)/%%%s FORCE_DO_CMD\n" % ext)
+        writer.write("\t@$(call do_cmd,%s,1)\n" % COMPILABLE_EXTENSIONS[ext])
+    writer.write("\n")
+
+
+SHARED_HEADER_SUFFIX_RULES_COMMENT1 = """\
+# Suffix rules, putting all outputs into $(obj).
+"""
+
+
+SHARED_HEADER_SUFFIX_RULES_COMMENT2 = """\
+# Try building from generated source, too.
+"""
+
+
+SHARED_FOOTER = """\
+# "all" is a concatenation of the "all" targets from all the included
+# sub-makefiles. This is just here to clarify.
+all:
+
+# Add in dependency-tracking rules.  $(all_deps) is the list of every single
+# target in our tree. Only consider the ones with .d (dependency) info:
+d_files := $(wildcard $(foreach f,$(all_deps),$(depsdir)/$(f).d))
+ifneq ($(d_files),)
+  include $(d_files)
+endif
+"""
+
+header = """\
+# This file is generated by gyp; do not edit.
+
+"""
+
+# Maps every compilable file extension to the do_cmd that compiles it.
+COMPILABLE_EXTENSIONS = {
+    ".c": "cc",
+    ".cc": "cxx",
+    ".cpp": "cxx",
+    ".cxx": "cxx",
+    ".s": "cc",
+    ".S": "cc",
+}
+
+
+def Compilable(filename):
+    """Return true if the file is compilable (should be in OBJS)."""
+    for res in (filename.endswith(e) for e in COMPILABLE_EXTENSIONS):
+        if res:
+            return True
+    return False
+
+
+def Linkable(filename):
+    """Return true if the file is linkable (should be on the link line)."""
+    return filename.endswith(".o")
+
+
+def Target(filename):
+    """Translate a compilable filename to its .o target."""
+    return os.path.splitext(filename)[0] + ".o"
+
+
+def EscapeShellArgument(s):
+    """Quotes an argument so that it will be interpreted literally by a POSIX
+    shell. Taken from
+    http://stackoverflow.com/questions/35817/whats-the-best-way-to-escape-ossystem-calls-in-python
+    """
+    return "'" + s.replace("'", "'\\''") + "'"
+
+
+def EscapeMakeVariableExpansion(s):
+    """Make has its own variable expansion syntax using $. We must escape it for
+    string to be interpreted literally."""
+    return s.replace("$", "$$")
+
+
+def EscapeCppDefine(s):
+    """Escapes a CPP define so that it will reach the compiler unaltered."""
+    s = EscapeShellArgument(s)
+    s = EscapeMakeVariableExpansion(s)
+    # '#' characters must be escaped even embedded in a string, else Make will
+    # treat it as the start of a comment.
+    return s.replace("#", r"\#")
+
+
+def QuoteIfNecessary(string):
+    """TODO: Should this ideally be replaced with one or more of the above
+    functions?"""
+    if '"' in string:
+        string = '"' + string.replace('"', '\\"') + '"'
+    return string
+
+
+def StringToMakefileVariable(string):
+    """Convert a string to a value that is acceptable as a make variable name."""
+    return re.sub("[^a-zA-Z0-9_]", "_", string)
+
+
+srcdir_prefix = ""
+
+
+def Sourceify(path):
+    """Convert a path to its source directory form."""
+    if "$(" in path:
+        return path
+    if os.path.isabs(path):
+        return path
+    return srcdir_prefix + path
+
+
+def QuoteSpaces(s, quote=r"\ "):
+    return s.replace(" ", quote)
+
+
+def SourceifyAndQuoteSpaces(path):
+    """Convert a path to its source directory form and quote spaces."""
+    return QuoteSpaces(Sourceify(path))
+
+
+# Map from qualified target to path to output.
+target_outputs = {}
+# Map from qualified target to any linkable output.  A subset
+# of target_outputs.  E.g. when mybinary depends on liba, we want to
+# include liba in the linker line; when otherbinary depends on
+# mybinary, we just want to build mybinary first.
+target_link_deps = {}
+
+
+class MakefileWriter:
+    """MakefileWriter packages up the writing of one target-specific foobar.mk.
+
+    Its only real entry point is Write(), and is mostly used for namespacing.
+    """
+
+    def __init__(self, generator_flags, flavor):
+        self.generator_flags = generator_flags
+        self.flavor = flavor
+
+        self.suffix_rules_srcdir = {}
+        self.suffix_rules_objdir1 = {}
+        self.suffix_rules_objdir2 = {}
+
+        # Generate suffix rules for all compilable extensions.
+        for ext in COMPILABLE_EXTENSIONS.keys():
+            # Suffix rules for source folder.
+            self.suffix_rules_srcdir.update(
+                {
+                    ext: (
+                        """\
+$(obj).$(TOOLSET)/$(TARGET)/%%.o: $(srcdir)/%%%s FORCE_DO_CMD
+\t@$(call do_cmd,%s,1)
+"""
+                        % (ext, COMPILABLE_EXTENSIONS[ext])
+                    )
+                }
+            )
+
+            # Suffix rules for generated source files.
+            self.suffix_rules_objdir1.update(
+                {
+                    ext: (
+                        """\
+$(obj).$(TOOLSET)/$(TARGET)/%%.o: $(obj).$(TOOLSET)/%%%s FORCE_DO_CMD
+\t@$(call do_cmd,%s,1)
+"""
+                        % (ext, COMPILABLE_EXTENSIONS[ext])
+                    )
+                }
+            )
+            self.suffix_rules_objdir2.update(
+                {
+                    ext: (
+                        """\
+$(obj).$(TOOLSET)/$(TARGET)/%%.o: $(obj)/%%%s FORCE_DO_CMD
+\t@$(call do_cmd,%s,1)
+"""
+                        % (ext, COMPILABLE_EXTENSIONS[ext])
+                    )
+                }
+            )
+
+    def Write(
+        self, qualified_target, base_path, output_filename, spec, configs, part_of_all
+    ):
+        """The main entry point: writes a .mk file for a single target.
+
+        Arguments:
+          qualified_target: target we're generating
+          base_path: path relative to source root we're building in, used to resolve
+                     target-relative paths
+          output_filename: output .mk file name to write
+          spec, configs: gyp info
+          part_of_all: flag indicating this target is part of 'all'
+        """
+        gyp.common.EnsureDirExists(output_filename)
+
+        self.fp = open(output_filename, "w")
+
+        self.fp.write(header)
+
+        self.qualified_target = qualified_target
+        self.path = base_path
+        self.target = spec["target_name"]
+        self.type = spec["type"]
+        self.toolset = spec["toolset"]
+
+        self.is_mac_bundle = gyp.xcode_emulation.IsMacBundle(self.flavor, spec)
+        if self.flavor == "mac":
+            self.xcode_settings = gyp.xcode_emulation.XcodeSettings(spec)
+        else:
+            self.xcode_settings = None
+
+        deps, link_deps = self.ComputeDeps(spec)
+
+        # Some of the generation below can add extra output, sources, or
+        # link dependencies.  All of the out params of the functions that
+        # follow use names like extra_foo.
+        extra_outputs = []
+        extra_sources = []
+        extra_link_deps = []
+        extra_mac_bundle_resources = []
+        mac_bundle_deps = []
+
+        if self.is_mac_bundle:
+            self.output = self.ComputeMacBundleOutput(spec)
+            self.output_binary = self.ComputeMacBundleBinaryOutput(spec)
+        else:
+            self.output = self.output_binary = self.ComputeOutput(spec)
+
+        self.is_standalone_static_library = bool(
+            spec.get("standalone_static_library", 0)
+        )
+        self._INSTALLABLE_TARGETS = ("executable", "loadable_module", "shared_library")
+        if self.is_standalone_static_library or self.type in self._INSTALLABLE_TARGETS:
+            self.alias = os.path.basename(self.output)
+            install_path = self._InstallableTargetInstallPath()
+        else:
+            self.alias = self.output
+            install_path = self.output
+
+        self.WriteLn("TOOLSET := " + self.toolset)
+        self.WriteLn("TARGET := " + self.target)
+
+        # Actions must come first, since they can generate more OBJs for use below.
+        if "actions" in spec:
+            self.WriteActions(
+                spec["actions"],
+                extra_sources,
+                extra_outputs,
+                extra_mac_bundle_resources,
+                part_of_all,
+            )
+
+        # Rules must be early like actions.
+        if "rules" in spec:
+            self.WriteRules(
+                spec["rules"],
+                extra_sources,
+                extra_outputs,
+                extra_mac_bundle_resources,
+                part_of_all,
+            )
+
+        if "copies" in spec:
+            self.WriteCopies(spec["copies"], extra_outputs, part_of_all)
+
+        # Bundle resources.
+        if self.is_mac_bundle:
+            all_mac_bundle_resources = (
+                spec.get("mac_bundle_resources", []) + extra_mac_bundle_resources
+            )
+            self.WriteMacBundleResources(all_mac_bundle_resources, mac_bundle_deps)
+            self.WriteMacInfoPlist(mac_bundle_deps)
+
+        # Sources.
+        all_sources = spec.get("sources", []) + extra_sources
+        if all_sources:
+            self.WriteSources(
+                configs,
+                deps,
+                all_sources,
+                extra_outputs,
+                extra_link_deps,
+                part_of_all,
+                gyp.xcode_emulation.MacPrefixHeader(
+                    self.xcode_settings,
+                    lambda p: Sourceify(self.Absolutify(p)),
+                    self.Pchify,
+                ),
+            )
+            sources = [x for x in all_sources if Compilable(x)]
+            if sources:
+                self.WriteLn(SHARED_HEADER_SUFFIX_RULES_COMMENT1)
+                extensions = {os.path.splitext(s)[1] for s in sources}
+                for ext in extensions:
+                    if ext in self.suffix_rules_srcdir:
+                        self.WriteLn(self.suffix_rules_srcdir[ext])
+                self.WriteLn(SHARED_HEADER_SUFFIX_RULES_COMMENT2)
+                for ext in extensions:
+                    if ext in self.suffix_rules_objdir1:
+                        self.WriteLn(self.suffix_rules_objdir1[ext])
+                for ext in extensions:
+                    if ext in self.suffix_rules_objdir2:
+                        self.WriteLn(self.suffix_rules_objdir2[ext])
+                self.WriteLn("# End of this set of suffix rules")
+
+                # Add dependency from bundle to bundle binary.
+                if self.is_mac_bundle:
+                    mac_bundle_deps.append(self.output_binary)
+
+        self.WriteTarget(
+            spec,
+            configs,
+            deps,
+            extra_link_deps + link_deps,
+            mac_bundle_deps,
+            extra_outputs,
+            part_of_all,
+        )
+
+        # Update global list of target outputs, used in dependency tracking.
+        target_outputs[qualified_target] = install_path
+
+        # Update global list of link dependencies.
+        if self.type in ("static_library", "shared_library"):
+            target_link_deps[qualified_target] = self.output_binary
+
+        # Currently any versions have the same effect, but in future the behavior
+        # could be different.
+        if self.generator_flags.get("android_ndk_version", None):
+            self.WriteAndroidNdkModuleRule(self.target, all_sources, link_deps)
+
+        self.fp.close()
+
+    def WriteSubMake(self, output_filename, makefile_path, targets, build_dir):
+        """Write a "sub-project" Makefile.
+
+        This is a small, wrapper Makefile that calls the top-level Makefile to build
+        the targets from a single gyp file (i.e. a sub-project).
+
+        Arguments:
+          output_filename: sub-project Makefile name to write
+          makefile_path: path to the top-level Makefile
+          targets: list of "all" targets for this sub-project
+          build_dir: build output directory, relative to the sub-project
+        """
+        gyp.common.EnsureDirExists(output_filename)
+        self.fp = open(output_filename, "w")
+        self.fp.write(header)
+        # For consistency with other builders, put sub-project build output in the
+        # sub-project dir (see test/subdirectory/gyptest-subdir-all.py).
+        self.WriteLn(
+            "export builddir_name ?= %s"
+            % os.path.join(os.path.dirname(output_filename), build_dir)
+        )
+        self.WriteLn(".PHONY: all")
+        self.WriteLn("all:")
+        if makefile_path:
+            makefile_path = " -C " + makefile_path
+        self.WriteLn("\t$(MAKE){} {}".format(makefile_path, " ".join(targets)))
+        self.fp.close()
+
+    def WriteActions(
+        self,
+        actions,
+        extra_sources,
+        extra_outputs,
+        extra_mac_bundle_resources,
+        part_of_all,
+    ):
+        """Write Makefile code for any 'actions' from the gyp input.
+
+        extra_sources: a list that will be filled in with newly generated source
+                       files, if any
+        extra_outputs: a list that will be filled in with any outputs of these
+                       actions (used to make other pieces dependent on these
+                       actions)
+        part_of_all: flag indicating this target is part of 'all'
+        """
+        env = self.GetSortedXcodeEnv()
+        for action in actions:
+            name = StringToMakefileVariable(
+                "{}_{}".format(self.qualified_target, action["action_name"])
+            )
+            self.WriteLn('### Rules for action "%s":' % action["action_name"])
+            inputs = action["inputs"]
+            outputs = action["outputs"]
+
+            # Build up a list of outputs.
+            # Collect the output dirs we'll need.
+            dirs = set()
+            for out in outputs:
+                dir = os.path.split(out)[0]
+                if dir:
+                    dirs.add(dir)
+            if int(action.get("process_outputs_as_sources", False)):
+                extra_sources += outputs
+            if int(action.get("process_outputs_as_mac_bundle_resources", False)):
+                extra_mac_bundle_resources += outputs
+
+            # Write the actual command.
+            action_commands = action["action"]
+            if self.flavor == "mac":
+                action_commands = [
+                    gyp.xcode_emulation.ExpandEnvVars(command, env)
+                    for command in action_commands
+                ]
+            command = gyp.common.EncodePOSIXShellList(action_commands)
+            if "message" in action:
+                self.WriteLn(
+                    "quiet_cmd_{} = ACTION {} $@".format(name, action["message"])
+                )
+            else:
+                self.WriteLn(f"quiet_cmd_{name} = ACTION {name} $@")
+            if len(dirs) > 0:
+                command = "mkdir -p %s" % " ".join(dirs) + "; " + command
+
+            cd_action = "cd %s; " % Sourceify(self.path or ".")
+
+            # command and cd_action get written to a toplevel variable called
+            # cmd_foo. Toplevel variables can't handle things that change per
+            # makefile like $(TARGET), so hardcode the target.
+            command = command.replace("$(TARGET)", self.target)
+            cd_action = cd_action.replace("$(TARGET)", self.target)
+
+            # Set LD_LIBRARY_PATH in case the action runs an executable from this
+            # build which links to shared libs from this build.
+            # actions run on the host, so they should in theory only use host
+            # libraries, but until everything is made cross-compile safe, also use
+            # target libraries.
+            # TODO(piman): when everything is cross-compile safe, remove lib.target
+            self.WriteLn(
+                "cmd_%s = LD_LIBRARY_PATH=$(builddir)/lib.host:"
+                "$(builddir)/lib.target:$$LD_LIBRARY_PATH; "
+                "export LD_LIBRARY_PATH; "
+                "%s%s" % (name, cd_action, command)
+            )
+            self.WriteLn()
+            outputs = [self.Absolutify(o) for o in outputs]
+            # The makefile rules are all relative to the top dir, but the gyp actions
+            # are defined relative to their containing dir.  This replaces the obj
+            # variable for the action rule with an absolute version so that the output
+            # goes in the right place.
+            # Only write the 'obj' and 'builddir' rules for the "primary" output (:1);
+            # it's superfluous for the "extra outputs", and this avoids accidentally
+            # writing duplicate dummy rules for those outputs.
+            # Same for environment.
+            self.WriteLn("%s: obj := $(abs_obj)" % QuoteSpaces(outputs[0]))
+            self.WriteLn("%s: builddir := $(abs_builddir)" % QuoteSpaces(outputs[0]))
+            self.WriteSortedXcodeEnv(outputs[0], self.GetSortedXcodeEnv())
+
+            for input in inputs:
+                assert " " not in input, (
+                    "Spaces in action input filenames not supported (%s)" % input
+                )
+            for output in outputs:
+                assert " " not in output, (
+                    "Spaces in action output filenames not supported (%s)" % output
+                )
+
+            # See the comment in WriteCopies about expanding env vars.
+            outputs = [gyp.xcode_emulation.ExpandEnvVars(o, env) for o in outputs]
+            inputs = [gyp.xcode_emulation.ExpandEnvVars(i, env) for i in inputs]
+
+            self.WriteDoCmd(
+                outputs,
+                [Sourceify(self.Absolutify(i)) for i in inputs],
+                part_of_all=part_of_all,
+                command=name,
+            )
+
+            # Stuff the outputs in a variable so we can refer to them later.
+            outputs_variable = "action_%s_outputs" % name
+            self.WriteLn("{} := {}".format(outputs_variable, " ".join(outputs)))
+            extra_outputs.append("$(%s)" % outputs_variable)
+            self.WriteLn()
+
+        self.WriteLn()
+
+    def WriteRules(
+        self,
+        rules,
+        extra_sources,
+        extra_outputs,
+        extra_mac_bundle_resources,
+        part_of_all,
+    ):
+        """Write Makefile code for any 'rules' from the gyp input.
+
+        extra_sources: a list that will be filled in with newly generated source
+                       files, if any
+        extra_outputs: a list that will be filled in with any outputs of these
+                       rules (used to make other pieces dependent on these rules)
+        part_of_all: flag indicating this target is part of 'all'
+        """
+        env = self.GetSortedXcodeEnv()
+        for rule in rules:
+            name = StringToMakefileVariable(
+                "{}_{}".format(self.qualified_target, rule["rule_name"])
+            )
+            count = 0
+            self.WriteLn("### Generated for rule %s:" % name)
+
+            all_outputs = []
+
+            for rule_source in rule.get("rule_sources", []):
+                dirs = set()
+                (rule_source_dirname, rule_source_basename) = os.path.split(rule_source)
+                (rule_source_root, rule_source_ext) = os.path.splitext(
+                    rule_source_basename
+                )
+
+                outputs = [
+                    self.ExpandInputRoot(out, rule_source_root, rule_source_dirname)
+                    for out in rule["outputs"]
+                ]
+
+                for out in outputs:
+                    dir = os.path.dirname(out)
+                    if dir:
+                        dirs.add(dir)
+                if int(rule.get("process_outputs_as_sources", False)):
+                    extra_sources += outputs
+                if int(rule.get("process_outputs_as_mac_bundle_resources", False)):
+                    extra_mac_bundle_resources += outputs
+                inputs = [
+                    Sourceify(self.Absolutify(i))
+                    for i in [rule_source] + rule.get("inputs", [])
+                ]
+                actions = ["$(call do_cmd,%s_%d)" % (name, count)]
+
+                if name == "resources_grit":
+                    # HACK: This is ugly.  Grit intentionally doesn't touch the
+                    # timestamp of its output file when the file doesn't change,
+                    # which is fine in hash-based dependency systems like scons
+                    # and forge, but not kosher in the make world.  After some
+                    # discussion, hacking around it here seems like the least
+                    # amount of pain.
+                    actions += ["@touch --no-create $@"]
+
+                # See the comment in WriteCopies about expanding env vars.
+                outputs = [gyp.xcode_emulation.ExpandEnvVars(o, env) for o in outputs]
+                inputs = [gyp.xcode_emulation.ExpandEnvVars(i, env) for i in inputs]
+
+                outputs = [self.Absolutify(o) for o in outputs]
+                all_outputs += outputs
+                # Only write the 'obj' and 'builddir' rules for the "primary" output
+                # (:1); it's superfluous for the "extra outputs", and this avoids
+                # accidentally writing duplicate dummy rules for those outputs.
+                self.WriteLn("%s: obj := $(abs_obj)" % outputs[0])
+                self.WriteLn("%s: builddir := $(abs_builddir)" % outputs[0])
+                self.WriteMakeRule(
+                    outputs, inputs, actions, command="%s_%d" % (name, count)
+                )
+                # Spaces in rule filenames are not supported, but rule variables have
+                # spaces in them (e.g. RULE_INPUT_PATH expands to '$(abspath $<)').
+                # The spaces within the variables are valid, so remove the variables
+                # before checking.
+                variables_with_spaces = re.compile(r"\$\([^ ]* \$<\)")
+                for output in outputs:
+                    output = re.sub(variables_with_spaces, "", output)
+                    assert " " not in output, (
+                        "Spaces in rule filenames not yet supported (%s)" % output
+                    )
+                self.WriteLn("all_deps += %s" % " ".join(outputs))
+
+                action = [
+                    self.ExpandInputRoot(ac, rule_source_root, rule_source_dirname)
+                    for ac in rule["action"]
+                ]
+                mkdirs = ""
+                if len(dirs) > 0:
+                    mkdirs = "mkdir -p %s; " % " ".join(dirs)
+                cd_action = "cd %s; " % Sourceify(self.path or ".")
+
+                # action, cd_action, and mkdirs get written to a toplevel variable
+                # called cmd_foo. Toplevel variables can't handle things that change
+                # per makefile like $(TARGET), so hardcode the target.
+                if self.flavor == "mac":
+                    action = [
+                        gyp.xcode_emulation.ExpandEnvVars(command, env)
+                        for command in action
+                    ]
+                action = gyp.common.EncodePOSIXShellList(action)
+                action = action.replace("$(TARGET)", self.target)
+                cd_action = cd_action.replace("$(TARGET)", self.target)
+                mkdirs = mkdirs.replace("$(TARGET)", self.target)
+
+                # Set LD_LIBRARY_PATH in case the rule runs an executable from this
+                # build which links to shared libs from this build.
+                # rules run on the host, so they should in theory only use host
+                # libraries, but until everything is made cross-compile safe, also use
+                # target libraries.
+                # TODO(piman): when everything is cross-compile safe, remove lib.target
+                self.WriteLn(
+                    "cmd_%(name)s_%(count)d = LD_LIBRARY_PATH="
+                    "$(builddir)/lib.host:$(builddir)/lib.target:$$LD_LIBRARY_PATH; "
+                    "export LD_LIBRARY_PATH; "
+                    "%(cd_action)s%(mkdirs)s%(action)s"
+                    % {
+                        "action": action,
+                        "cd_action": cd_action,
+                        "count": count,
+                        "mkdirs": mkdirs,
+                        "name": name,
+                    }
+                )
+                self.WriteLn(
+                    "quiet_cmd_%(name)s_%(count)d = RULE %(name)s_%(count)d $@"
+                    % {"count": count, "name": name}
+                )
+                self.WriteLn()
+                count += 1
+
+            outputs_variable = "rule_%s_outputs" % name
+            self.WriteList(all_outputs, outputs_variable)
+            extra_outputs.append("$(%s)" % outputs_variable)
+
+            self.WriteLn("### Finished generating for rule: %s" % name)
+            self.WriteLn()
+        self.WriteLn("### Finished generating for all rules")
+        self.WriteLn("")
+
+    def WriteCopies(self, copies, extra_outputs, part_of_all):
+        """Write Makefile code for any 'copies' from the gyp input.
+
+        extra_outputs: a list that will be filled in with any outputs of this action
+                       (used to make other pieces dependent on this action)
+        part_of_all: flag indicating this target is part of 'all'
+        """
+        self.WriteLn("### Generated for copy rule.")
+
+        variable = StringToMakefileVariable(self.qualified_target + "_copies")
+        outputs = []
+        for copy in copies:
+            for path in copy["files"]:
+                # Absolutify() may call normpath, and will strip trailing slashes.
+                path = Sourceify(self.Absolutify(path))
+                filename = os.path.split(path)[1]
+                output = Sourceify(
+                    self.Absolutify(os.path.join(copy["destination"], filename))
+                )
+
+                # If the output path has variables in it, which happens in practice for
+                # 'copies', writing the environment as target-local doesn't work,
+                # because the variables are already needed for the target name.
+                # Copying the environment variables into global make variables doesn't
+                # work either, because then the .d files will potentially contain spaces
+                # after variable expansion, and .d file handling cannot handle spaces.
+                # As a workaround, manually expand variables at gyp time. Since 'copies'
+                # can't run scripts, there's no need to write the env then.
+                # WriteDoCmd() will escape spaces for .d files.
+                env = self.GetSortedXcodeEnv()
+                output = gyp.xcode_emulation.ExpandEnvVars(output, env)
+                path = gyp.xcode_emulation.ExpandEnvVars(path, env)
+                self.WriteDoCmd([output], [path], "copy", part_of_all)
+                outputs.append(output)
+        self.WriteLn(
+            "{} = {}".format(variable, " ".join(QuoteSpaces(o) for o in outputs))
+        )
+        extra_outputs.append("$(%s)" % variable)
+        self.WriteLn()
+
+    def WriteMacBundleResources(self, resources, bundle_deps):
+        """Writes Makefile code for 'mac_bundle_resources'."""
+        self.WriteLn("### Generated for mac_bundle_resources")
+
+        for output, res in gyp.xcode_emulation.GetMacBundleResources(
+            generator_default_variables["PRODUCT_DIR"],
+            self.xcode_settings,
+            [Sourceify(self.Absolutify(r)) for r in resources],
+        ):
+            _, ext = os.path.splitext(output)
+            if ext != ".xcassets":
+                # Make does not supports '.xcassets' emulation.
+                self.WriteDoCmd(
+                    [output], [res], "mac_tool,,,copy-bundle-resource", part_of_all=True
+                )
+                bundle_deps.append(output)
+
+    def WriteMacInfoPlist(self, bundle_deps):
+        """Write Makefile code for bundle Info.plist files."""
+        info_plist, out, defines, extra_env = gyp.xcode_emulation.GetMacInfoPlist(
+            generator_default_variables["PRODUCT_DIR"],
+            self.xcode_settings,
+            lambda p: Sourceify(self.Absolutify(p)),
+        )
+        if not info_plist:
+            return
+        if defines:
+            # Create an intermediate file to store preprocessed results.
+            intermediate_plist = "$(obj).$(TOOLSET)/$(TARGET)/" + os.path.basename(
+                info_plist
+            )
+            self.WriteList(
+                defines,
+                intermediate_plist + ": INFOPLIST_DEFINES",
+                "-D",
+                quoter=EscapeCppDefine,
+            )
+            self.WriteMakeRule(
+                [intermediate_plist],
+                [info_plist],
+                [
+                    "$(call do_cmd,infoplist)",
+                    # "Convert" the plist so that any weird whitespace changes from the
+                    # preprocessor do not affect the XML parser in mac_tool.
+                    "@plutil -convert xml1 $@ $@",
+                ],
+            )
+            info_plist = intermediate_plist
+        # plists can contain envvars and substitute them into the file.
+        self.WriteSortedXcodeEnv(
+            out, self.GetSortedXcodeEnv(additional_settings=extra_env)
+        )
+        self.WriteDoCmd(
+            [out], [info_plist], "mac_tool,,,copy-info-plist", part_of_all=True
+        )
+        bundle_deps.append(out)
+
+    def WriteSources(
+        self,
+        configs,
+        deps,
+        sources,
+        extra_outputs,
+        extra_link_deps,
+        part_of_all,
+        precompiled_header,
+    ):
+        """Write Makefile code for any 'sources' from the gyp input.
+        These are source files necessary to build the current target.
+
+        configs, deps, sources: input from gyp.
+        extra_outputs: a list of extra outputs this action should be dependent on;
+                       used to serialize action/rules before compilation
+        extra_link_deps: a list that will be filled in with any outputs of
+                         compilation (to be used in link lines)
+        part_of_all: flag indicating this target is part of 'all'
+        """
+
+        # Write configuration-specific variables for CFLAGS, etc.
+        for configname in sorted(configs.keys()):
+            config = configs[configname]
+            self.WriteList(
+                config.get("defines"),
+                "DEFS_%s" % configname,
+                prefix="-D",
+                quoter=EscapeCppDefine,
+            )
+
+            if self.flavor == "mac":
+                cflags = self.xcode_settings.GetCflags(
+                    configname, arch=config.get("xcode_configuration_platform")
+                )
+                cflags_c = self.xcode_settings.GetCflagsC(configname)
+                cflags_cc = self.xcode_settings.GetCflagsCC(configname)
+                cflags_objc = self.xcode_settings.GetCflagsObjC(configname)
+                cflags_objcc = self.xcode_settings.GetCflagsObjCC(configname)
+            else:
+                cflags = config.get("cflags")
+                cflags_c = config.get("cflags_c")
+                cflags_cc = config.get("cflags_cc")
+
+            self.WriteLn("# Flags passed to all source files.")
+            self.WriteList(cflags, "CFLAGS_%s" % configname)
+            self.WriteLn("# Flags passed to only C files.")
+            self.WriteList(cflags_c, "CFLAGS_C_%s" % configname)
+            self.WriteLn("# Flags passed to only C++ files.")
+            self.WriteList(cflags_cc, "CFLAGS_CC_%s" % configname)
+            if self.flavor == "mac":
+                self.WriteLn("# Flags passed to only ObjC files.")
+                self.WriteList(cflags_objc, "CFLAGS_OBJC_%s" % configname)
+                self.WriteLn("# Flags passed to only ObjC++ files.")
+                self.WriteList(cflags_objcc, "CFLAGS_OBJCC_%s" % configname)
+            includes = config.get("include_dirs")
+            if includes:
+                includes = [Sourceify(self.Absolutify(i)) for i in includes]
+            self.WriteList(includes, "INCS_%s" % configname, prefix="-I")
+
+        compilable = list(filter(Compilable, sources))
+        objs = [self.Objectify(self.Absolutify(Target(c))) for c in compilable]
+        self.WriteList(objs, "OBJS")
+
+        for obj in objs:
+            assert " " not in obj, "Spaces in object filenames not supported (%s)" % obj
+        self.WriteLn(
+            "# Add to the list of files we specially track " "dependencies for."
+        )
+        self.WriteLn("all_deps += $(OBJS)")
+        self.WriteLn()
+
+        # Make sure our dependencies are built first.
+        if deps:
+            self.WriteMakeRule(
+                ["$(OBJS)"],
+                deps,
+                comment="Make sure our dependencies are built " "before any of us.",
+                order_only=True,
+            )
+
+        # Make sure the actions and rules run first.
+        # If they generate any extra headers etc., the per-.o file dep tracking
+        # will catch the proper rebuilds, so order only is still ok here.
+        if extra_outputs:
+            self.WriteMakeRule(
+                ["$(OBJS)"],
+                extra_outputs,
+                comment="Make sure our actions/rules run " "before any of us.",
+                order_only=True,
+            )
+
+        pchdeps = precompiled_header.GetObjDependencies(compilable, objs)
+        if pchdeps:
+            self.WriteLn("# Dependencies from obj files to their precompiled headers")
+            for source, obj, gch in pchdeps:
+                self.WriteLn(f"{obj}: {gch}")
+            self.WriteLn("# End precompiled header dependencies")
+
+        if objs:
+            extra_link_deps.append("$(OBJS)")
+            self.WriteLn(
+                """\
+# CFLAGS et al overrides must be target-local.
+# See "Target-specific Variable Values" in the GNU Make manual."""
+            )
+            self.WriteLn("$(OBJS): TOOLSET := $(TOOLSET)")
+            self.WriteLn(
+                "$(OBJS): GYP_CFLAGS := "
+                "$(DEFS_$(BUILDTYPE)) "
+                "$(INCS_$(BUILDTYPE)) "
+                "%s " % precompiled_header.GetInclude("c") + "$(CFLAGS_$(BUILDTYPE)) "
+                "$(CFLAGS_C_$(BUILDTYPE))"
+            )
+            self.WriteLn(
+                "$(OBJS): GYP_CXXFLAGS := "
+                "$(DEFS_$(BUILDTYPE)) "
+                "$(INCS_$(BUILDTYPE)) "
+                "%s " % precompiled_header.GetInclude("cc") + "$(CFLAGS_$(BUILDTYPE)) "
+                "$(CFLAGS_CC_$(BUILDTYPE))"
+            )
+            if self.flavor == "mac":
+                self.WriteLn(
+                    "$(OBJS): GYP_OBJCFLAGS := "
+                    "$(DEFS_$(BUILDTYPE)) "
+                    "$(INCS_$(BUILDTYPE)) "
+                    "%s " % precompiled_header.GetInclude("m")
+                    + "$(CFLAGS_$(BUILDTYPE)) "
+                    "$(CFLAGS_C_$(BUILDTYPE)) "
+                    "$(CFLAGS_OBJC_$(BUILDTYPE))"
+                )
+                self.WriteLn(
+                    "$(OBJS): GYP_OBJCXXFLAGS := "
+                    "$(DEFS_$(BUILDTYPE)) "
+                    "$(INCS_$(BUILDTYPE)) "
+                    "%s " % precompiled_header.GetInclude("mm")
+                    + "$(CFLAGS_$(BUILDTYPE)) "
+                    "$(CFLAGS_CC_$(BUILDTYPE)) "
+                    "$(CFLAGS_OBJCC_$(BUILDTYPE))"
+                )
+
+        self.WritePchTargets(precompiled_header.GetPchBuildCommands())
+
+        # If there are any object files in our input file list, link them into our
+        # output.
+        extra_link_deps += [source for source in sources if Linkable(source)]
+
+        self.WriteLn()
+
+    def WritePchTargets(self, pch_commands):
+        """Writes make rules to compile prefix headers."""
+        if not pch_commands:
+            return
+
+        for gch, lang_flag, lang, input in pch_commands:
+            extra_flags = {
+                "c": "$(CFLAGS_C_$(BUILDTYPE))",
+                "cc": "$(CFLAGS_CC_$(BUILDTYPE))",
+                "m": "$(CFLAGS_C_$(BUILDTYPE)) $(CFLAGS_OBJC_$(BUILDTYPE))",
+                "mm": "$(CFLAGS_CC_$(BUILDTYPE)) $(CFLAGS_OBJCC_$(BUILDTYPE))",
+            }[lang]
+            var_name = {
+                "c": "GYP_PCH_CFLAGS",
+                "cc": "GYP_PCH_CXXFLAGS",
+                "m": "GYP_PCH_OBJCFLAGS",
+                "mm": "GYP_PCH_OBJCXXFLAGS",
+            }[lang]
+            self.WriteLn(
+                f"{gch}: {var_name} := {lang_flag} " + "$(DEFS_$(BUILDTYPE)) "
+                "$(INCS_$(BUILDTYPE)) "
+                "$(CFLAGS_$(BUILDTYPE)) " + extra_flags
+            )
+
+            self.WriteLn(f"{gch}: {input} FORCE_DO_CMD")
+            self.WriteLn("\t@$(call do_cmd,pch_%s,1)" % lang)
+            self.WriteLn("")
+            assert " " not in gch, "Spaces in gch filenames not supported (%s)" % gch
+            self.WriteLn("all_deps += %s" % gch)
+            self.WriteLn("")
+
+    def ComputeOutputBasename(self, spec):
+        """Return the 'output basename' of a gyp spec.
+
+        E.g., the loadable module 'foobar' in directory 'baz' will produce
+          'libfoobar.so'
+        """
+        assert not self.is_mac_bundle
+
+        if self.flavor == "mac" and self.type in (
+            "static_library",
+            "executable",
+            "shared_library",
+            "loadable_module",
+        ):
+            return self.xcode_settings.GetExecutablePath()
+
+        target = spec["target_name"]
+        target_prefix = ""
+        target_ext = ""
+        if self.type == "static_library":
+            if target[:3] == "lib":
+                target = target[3:]
+            target_prefix = "lib"
+            target_ext = ".a"
+        elif self.type in ("loadable_module", "shared_library"):
+            if target[:3] == "lib":
+                target = target[3:]
+            target_prefix = "lib"
+            if self.flavor == "aix":
+                target_ext = ".a"
+            else:
+                target_ext = ".so"
+        elif self.type == "none":
+            target = "%s.stamp" % target
+        elif self.type != "executable":
+            print(
+                "ERROR: What output file should be generated?",
+                "type",
+                self.type,
+                "target",
+                target,
+            )
+
+        target_prefix = spec.get("product_prefix", target_prefix)
+        target = spec.get("product_name", target)
+        product_ext = spec.get("product_extension")
+        if product_ext:
+            target_ext = "." + product_ext
+
+        return target_prefix + target + target_ext
+
+    def _InstallImmediately(self):
+        return (
+            self.toolset == "target"
+            and self.flavor == "mac"
+            and self.type
+            in ("static_library", "executable", "shared_library", "loadable_module")
+        )
+
+    def ComputeOutput(self, spec):
+        """Return the 'output' (full output path) of a gyp spec.
+
+        E.g., the loadable module 'foobar' in directory 'baz' will produce
+          '$(obj)/baz/libfoobar.so'
+        """
+        assert not self.is_mac_bundle
+
+        path = os.path.join("$(obj)." + self.toolset, self.path)
+        if self.type == "executable" or self._InstallImmediately():
+            path = "$(builddir)"
+        path = spec.get("product_dir", path)
+        return os.path.join(path, self.ComputeOutputBasename(spec))
+
+    def ComputeMacBundleOutput(self, spec):
+        """Return the 'output' (full output path) to a bundle output directory."""
+        assert self.is_mac_bundle
+        path = generator_default_variables["PRODUCT_DIR"]
+        return os.path.join(path, self.xcode_settings.GetWrapperName())
+
+    def ComputeMacBundleBinaryOutput(self, spec):
+        """Return the 'output' (full output path) to the binary in a bundle."""
+        path = generator_default_variables["PRODUCT_DIR"]
+        return os.path.join(path, self.xcode_settings.GetExecutablePath())
+
+    def ComputeDeps(self, spec):
+        """Compute the dependencies of a gyp spec.
+
+        Returns a tuple (deps, link_deps), where each is a list of
+        filenames that will need to be put in front of make for either
+        building (deps) or linking (link_deps).
+        """
+        deps = []
+        link_deps = []
+        if "dependencies" in spec:
+            deps.extend(
+                [
+                    target_outputs[dep]
+                    for dep in spec["dependencies"]
+                    if target_outputs[dep]
+                ]
+            )
+            for dep in spec["dependencies"]:
+                if dep in target_link_deps:
+                    link_deps.append(target_link_deps[dep])
+            deps.extend(link_deps)
+            # TODO: It seems we need to transitively link in libraries (e.g. -lfoo)?
+            # This hack makes it work:
+            # link_deps.extend(spec.get('libraries', []))
+        return (gyp.common.uniquer(deps), gyp.common.uniquer(link_deps))
+
+    def WriteDependencyOnExtraOutputs(self, target, extra_outputs):
+        self.WriteMakeRule(
+            [self.output_binary],
+            extra_outputs,
+            comment="Build our special outputs first.",
+            order_only=True,
+        )
+
+    def WriteTarget(
+        self, spec, configs, deps, link_deps, bundle_deps, extra_outputs, part_of_all
+    ):
+        """Write Makefile code to produce the final target of the gyp spec.
+
+        spec, configs: input from gyp.
+        deps, link_deps: dependency lists; see ComputeDeps()
+        extra_outputs: any extra outputs that our target should depend on
+        part_of_all: flag indicating this target is part of 'all'
+        """
+
+        self.WriteLn("### Rules for final target.")
+
+        if extra_outputs:
+            self.WriteDependencyOnExtraOutputs(self.output_binary, extra_outputs)
+            self.WriteMakeRule(
+                extra_outputs,
+                deps,
+                comment=("Preserve order dependency of " "special output on deps."),
+                order_only=True,
+            )
+
+        target_postbuilds = {}
+        if self.type != "none":
+            for configname in sorted(configs.keys()):
+                config = configs[configname]
+                if self.flavor == "mac":
+                    ldflags = self.xcode_settings.GetLdflags(
+                        configname,
+                        generator_default_variables["PRODUCT_DIR"],
+                        lambda p: Sourceify(self.Absolutify(p)),
+                        arch=config.get("xcode_configuration_platform"),
+                    )
+
+                    # TARGET_POSTBUILDS_$(BUILDTYPE) is added to postbuilds later on.
+                    gyp_to_build = gyp.common.InvertRelativePath(self.path)
+                    target_postbuild = self.xcode_settings.AddImplicitPostbuilds(
+                        configname,
+                        QuoteSpaces(
+                            os.path.normpath(os.path.join(gyp_to_build, self.output))
+                        ),
+                        QuoteSpaces(
+                            os.path.normpath(
+                                os.path.join(gyp_to_build, self.output_binary)
+                            )
+                        ),
+                    )
+                    if target_postbuild:
+                        target_postbuilds[configname] = target_postbuild
+                else:
+                    ldflags = config.get("ldflags", [])
+                    # Compute an rpath for this output if needed.
+                    if any(dep.endswith(".so") or ".so." in dep for dep in deps):
+                        # We want to get the literal string "$ORIGIN"
+                        # into the link command, so we need lots of escaping.
+                        ldflags.append(r"-Wl,-rpath=\$$ORIGIN/")
+                        ldflags.append(r"-Wl,-rpath-link=\$(builddir)/")
+                library_dirs = config.get("library_dirs", [])
+                ldflags += [("-L%s" % library_dir) for library_dir in library_dirs]
+                self.WriteList(ldflags, "LDFLAGS_%s" % configname)
+                if self.flavor == "mac":
+                    self.WriteList(
+                        self.xcode_settings.GetLibtoolflags(configname),
+                        "LIBTOOLFLAGS_%s" % configname,
+                    )
+            libraries = spec.get("libraries")
+            if libraries:
+                # Remove duplicate entries
+                libraries = gyp.common.uniquer(libraries)
+                if self.flavor == "mac":
+                    libraries = self.xcode_settings.AdjustLibraries(libraries)
+            self.WriteList(libraries, "LIBS")
+            self.WriteLn(
+                "%s: GYP_LDFLAGS := $(LDFLAGS_$(BUILDTYPE))"
+                % QuoteSpaces(self.output_binary)
+            )
+            self.WriteLn("%s: LIBS := $(LIBS)" % QuoteSpaces(self.output_binary))
+
+            if self.flavor == "mac":
+                self.WriteLn(
+                    "%s: GYP_LIBTOOLFLAGS := $(LIBTOOLFLAGS_$(BUILDTYPE))"
+                    % QuoteSpaces(self.output_binary)
+                )
+
+        # Postbuild actions. Like actions, but implicitly depend on the target's
+        # output.
+        postbuilds = []
+        if self.flavor == "mac":
+            if target_postbuilds:
+                postbuilds.append("$(TARGET_POSTBUILDS_$(BUILDTYPE))")
+            postbuilds.extend(gyp.xcode_emulation.GetSpecPostbuildCommands(spec))
+
+        if postbuilds:
+            # Envvars may be referenced by TARGET_POSTBUILDS_$(BUILDTYPE),
+            # so we must output its definition first, since we declare variables
+            # using ":=".
+            self.WriteSortedXcodeEnv(self.output, self.GetSortedXcodePostbuildEnv())
+
+            for configname in target_postbuilds:
+                self.WriteLn(
+                    "%s: TARGET_POSTBUILDS_%s := %s"
+                    % (
+                        QuoteSpaces(self.output),
+                        configname,
+                        gyp.common.EncodePOSIXShellList(target_postbuilds[configname]),
+                    )
+                )
+
+            # Postbuilds expect to be run in the gyp file's directory, so insert an
+            # implicit postbuild to cd to there.
+            postbuilds.insert(0, gyp.common.EncodePOSIXShellList(["cd", self.path]))
+            for i, postbuild in enumerate(postbuilds):
+                if not postbuild.startswith("$"):
+                    postbuilds[i] = EscapeShellArgument(postbuild)
+            self.WriteLn("%s: builddir := $(abs_builddir)" % QuoteSpaces(self.output))
+            self.WriteLn(
+                "%s: POSTBUILDS := %s"
+                % (QuoteSpaces(self.output), " ".join(postbuilds))
+            )
+
+        # A bundle directory depends on its dependencies such as bundle resources
+        # and bundle binary. When all dependencies have been built, the bundle
+        # needs to be packaged.
+        if self.is_mac_bundle:
+            # If the framework doesn't contain a binary, then nothing depends
+            # on the actions -- make the framework depend on them directly too.
+            self.WriteDependencyOnExtraOutputs(self.output, extra_outputs)
+
+            # Bundle dependencies. Note that the code below adds actions to this
+            # target, so if you move these two lines, move the lines below as well.
+            self.WriteList([QuoteSpaces(dep) for dep in bundle_deps], "BUNDLE_DEPS")
+            self.WriteLn("%s: $(BUNDLE_DEPS)" % QuoteSpaces(self.output))
+
+            # After the framework is built, package it. Needs to happen before
+            # postbuilds, since postbuilds depend on this.
+            if self.type in ("shared_library", "loadable_module"):
+                self.WriteLn(
+                    "\t@$(call do_cmd,mac_package_framework,,,%s)"
+                    % self.xcode_settings.GetFrameworkVersion()
+                )
+
+            # Bundle postbuilds can depend on the whole bundle, so run them after
+            # the bundle is packaged, not already after the bundle binary is done.
+            if postbuilds:
+                self.WriteLn("\t@$(call do_postbuilds)")
+            postbuilds = []  # Don't write postbuilds for target's output.
+
+            # Needed by test/mac/gyptest-rebuild.py.
+            self.WriteLn("\t@true  # No-op, used by tests")
+
+            # Since this target depends on binary and resources which are in
+            # nested subfolders, the framework directory will be older than
+            # its dependencies usually. To prevent this rule from executing
+            # on every build (expensive, especially with postbuilds), expliclity
+            # update the time on the framework directory.
+            self.WriteLn("\t@touch -c %s" % QuoteSpaces(self.output))
+
+        if postbuilds:
+            assert not self.is_mac_bundle, (
+                "Postbuilds for bundles should be done "
+                "on the bundle, not the binary (target '%s')" % self.target
+            )
+            assert "product_dir" not in spec, (
+                "Postbuilds do not work with " "custom product_dir"
+            )
+
+        if self.type == "executable":
+            self.WriteLn(
+                "%s: LD_INPUTS := %s"
+                % (
+                    QuoteSpaces(self.output_binary),
+                    " ".join(QuoteSpaces(dep) for dep in link_deps),
+                )
+            )
+            if self.toolset == "host" and self.flavor == "android":
+                self.WriteDoCmd(
+                    [self.output_binary],
+                    link_deps,
+                    "link_host",
+                    part_of_all,
+                    postbuilds=postbuilds,
+                )
+            else:
+                self.WriteDoCmd(
+                    [self.output_binary],
+                    link_deps,
+                    "link",
+                    part_of_all,
+                    postbuilds=postbuilds,
+                )
+
+        elif self.type == "static_library":
+            for link_dep in link_deps:
+                assert " " not in link_dep, (
+                    "Spaces in alink input filenames not supported (%s)" % link_dep
+                )
+            if (
+                self.flavor not in ("mac", "openbsd", "netbsd", "win")
+                and not self.is_standalone_static_library
+            ):
+                self.WriteDoCmd(
+                    [self.output_binary],
+                    link_deps,
+                    "alink_thin",
+                    part_of_all,
+                    postbuilds=postbuilds,
+                )
+            else:
+                self.WriteDoCmd(
+                    [self.output_binary],
+                    link_deps,
+                    "alink",
+                    part_of_all,
+                    postbuilds=postbuilds,
+                )
+        elif self.type == "shared_library":
+            self.WriteLn(
+                "%s: LD_INPUTS := %s"
+                % (
+                    QuoteSpaces(self.output_binary),
+                    " ".join(QuoteSpaces(dep) for dep in link_deps),
+                )
+            )
+            self.WriteDoCmd(
+                [self.output_binary],
+                link_deps,
+                "solink",
+                part_of_all,
+                postbuilds=postbuilds,
+            )
+        elif self.type == "loadable_module":
+            for link_dep in link_deps:
+                assert " " not in link_dep, (
+                    "Spaces in module input filenames not supported (%s)" % link_dep
+                )
+            if self.toolset == "host" and self.flavor == "android":
+                self.WriteDoCmd(
+                    [self.output_binary],
+                    link_deps,
+                    "solink_module_host",
+                    part_of_all,
+                    postbuilds=postbuilds,
+                )
+            else:
+                self.WriteDoCmd(
+                    [self.output_binary],
+                    link_deps,
+                    "solink_module",
+                    part_of_all,
+                    postbuilds=postbuilds,
+                )
+        elif self.type == "none":
+            # Write a stamp line.
+            self.WriteDoCmd(
+                [self.output_binary], deps, "touch", part_of_all, postbuilds=postbuilds
+            )
+        else:
+            print("WARNING: no output for", self.type, self.target)
+
+        # Add an alias for each target (if there are any outputs).
+        # Installable target aliases are created below.
+        if (self.output and self.output != self.target) and (
+            self.type not in self._INSTALLABLE_TARGETS
+        ):
+            self.WriteMakeRule(
+                [self.target], [self.output], comment="Add target alias", phony=True
+            )
+            if part_of_all:
+                self.WriteMakeRule(
+                    ["all"],
+                    [self.target],
+                    comment='Add target alias to "all" target.',
+                    phony=True,
+                )
+
+        # Add special-case rules for our installable targets.
+        # 1) They need to install to the build dir or "product" dir.
+        # 2) They get shortcuts for building (e.g. "make chrome").
+        # 3) They are part of "make all".
+        if self.type in self._INSTALLABLE_TARGETS or self.is_standalone_static_library:
+            if self.type == "shared_library":
+                file_desc = "shared library"
+            elif self.type == "static_library":
+                file_desc = "static library"
+            else:
+                file_desc = "executable"
+            install_path = self._InstallableTargetInstallPath()
+            installable_deps = [self.output]
+            if (
+                self.flavor == "mac"
+                and "product_dir" not in spec
+                and self.toolset == "target"
+            ):
+                # On mac, products are created in install_path immediately.
+                assert install_path == self.output, "{} != {}".format(
+                    install_path,
+                    self.output,
+                )
+
+            # Point the target alias to the final binary output.
+            self.WriteMakeRule(
+                [self.target], [install_path], comment="Add target alias", phony=True
+            )
+            if install_path != self.output:
+                assert not self.is_mac_bundle  # See comment a few lines above.
+                self.WriteDoCmd(
+                    [install_path],
+                    [self.output],
+                    "copy",
+                    comment="Copy this to the %s output path." % file_desc,
+                    part_of_all=part_of_all,
+                )
+                installable_deps.append(install_path)
+            if self.output != self.alias and self.alias != self.target:
+                self.WriteMakeRule(
+                    [self.alias],
+                    installable_deps,
+                    comment="Short alias for building this %s." % file_desc,
+                    phony=True,
+                )
+            if part_of_all:
+                self.WriteMakeRule(
+                    ["all"],
+                    [install_path],
+                    comment='Add %s to "all" target.' % file_desc,
+                    phony=True,
+                )
+
+    def WriteList(self, value_list, variable=None, prefix="", quoter=QuoteIfNecessary):
+        """Write a variable definition that is a list of values.
+
+        E.g. WriteList(['a','b'], 'foo', prefix='blah') writes out
+             foo = blaha blahb
+        but in a pretty-printed style.
+        """
+        values = ""
+        if value_list:
+            value_list = [quoter(prefix + value) for value in value_list]
+            values = " \\\n\t" + " \\\n\t".join(value_list)
+        self.fp.write(f"{variable} :={values}\n\n")
+
+    def WriteDoCmd(
+        self, outputs, inputs, command, part_of_all, comment=None, postbuilds=False
+    ):
+        """Write a Makefile rule that uses do_cmd.
+
+        This makes the outputs dependent on the command line that was run,
+        as well as support the V= make command line flag.
+        """
+        suffix = ""
+        if postbuilds:
+            assert "," not in command
+            suffix = ",,1"  # Tell do_cmd to honor $POSTBUILDS
+        self.WriteMakeRule(
+            outputs,
+            inputs,
+            actions=[f"$(call do_cmd,{command}{suffix})"],
+            comment=comment,
+            command=command,
+            force=True,
+        )
+        # Add our outputs to the list of targets we read depfiles from.
+        # all_deps is only used for deps file reading, and for deps files we replace
+        # spaces with ? because escaping doesn't work with make's $(sort) and
+        # other functions.
+        outputs = [QuoteSpaces(o, SPACE_REPLACEMENT) for o in outputs]
+        self.WriteLn("all_deps += %s" % " ".join(outputs))
+
+    def WriteMakeRule(
+        self,
+        outputs,
+        inputs,
+        actions=None,
+        comment=None,
+        order_only=False,
+        force=False,
+        phony=False,
+        command=None,
+    ):
+        """Write a Makefile rule, with some extra tricks.
+
+        outputs: a list of outputs for the rule (note: this is not directly
+                 supported by make; see comments below)
+        inputs: a list of inputs for the rule
+        actions: a list of shell commands to run for the rule
+        comment: a comment to put in the Makefile above the rule (also useful
+                 for making this Python script's code self-documenting)
+        order_only: if true, makes the dependency order-only
+        force: if true, include FORCE_DO_CMD as an order-only dep
+        phony: if true, the rule does not actually generate the named output, the
+               output is just a name to run the rule
+        command: (optional) command name to generate unambiguous labels
+        """
+        outputs = [QuoteSpaces(o) for o in outputs]
+        inputs = [QuoteSpaces(i) for i in inputs]
+
+        if comment:
+            self.WriteLn("# " + comment)
+        if phony:
+            self.WriteLn(".PHONY: " + " ".join(outputs))
+        if actions:
+            self.WriteLn("%s: TOOLSET := $(TOOLSET)" % outputs[0])
+        force_append = " FORCE_DO_CMD" if force else ""
+
+        if order_only:
+            # Order only rule: Just write a simple rule.
+            # TODO(evanm): just make order_only a list of deps instead of this hack.
+            self.WriteLn(
+                "{}: | {}{}".format(" ".join(outputs), " ".join(inputs), force_append)
+            )
+        elif len(outputs) == 1:
+            # Regular rule, one output: Just write a simple rule.
+            self.WriteLn("{}: {}{}".format(outputs[0], " ".join(inputs), force_append))
+        else:
+            # Regular rule, more than one output: Multiple outputs are tricky in
+            # make. We will write three rules:
+            # - All outputs depend on an intermediate file.
+            # - Make .INTERMEDIATE depend on the intermediate.
+            # - The intermediate file depends on the inputs and executes the
+            #   actual command.
+            # - The intermediate recipe will 'touch' the intermediate file.
+            # - The multi-output rule will have an do-nothing recipe.
+
+            # Hash the target name to avoid generating overlong filenames.
+            cmddigest = hashlib.sha1(
+                (command or self.target).encode("utf-8")
+            ).hexdigest()
+            intermediate = "%s.intermediate" % cmddigest
+            self.WriteLn("{}: {}".format(" ".join(outputs), intermediate))
+            self.WriteLn("\t%s" % "@:")
+            self.WriteLn("{}: {}".format(".INTERMEDIATE", intermediate))
+            self.WriteLn(
+                "{}: {}{}".format(intermediate, " ".join(inputs), force_append)
+            )
+            actions.insert(0, "$(call do_cmd,touch)")
+
+        if actions:
+            for action in actions:
+                self.WriteLn("\t%s" % action)
+        self.WriteLn()
+
+    def WriteAndroidNdkModuleRule(self, module_name, all_sources, link_deps):
+        """Write a set of LOCAL_XXX definitions for Android NDK.
+
+        These variable definitions will be used by Android NDK but do nothing for
+        non-Android applications.
+
+        Arguments:
+          module_name: Android NDK module name, which must be unique among all
+              module names.
+          all_sources: A list of source files (will be filtered by Compilable).
+          link_deps: A list of link dependencies, which must be sorted in
+              the order from dependencies to dependents.
+        """
+        if self.type not in ("executable", "shared_library", "static_library"):
+            return
+
+        self.WriteLn("# Variable definitions for Android applications")
+        self.WriteLn("include $(CLEAR_VARS)")
+        self.WriteLn("LOCAL_MODULE := " + module_name)
+        self.WriteLn(
+            "LOCAL_CFLAGS := $(CFLAGS_$(BUILDTYPE)) "
+            "$(DEFS_$(BUILDTYPE)) "
+            # LOCAL_CFLAGS is applied to both of C and C++.  There is
+            # no way to specify $(CFLAGS_C_$(BUILDTYPE)) only for C
+            # sources.
+            "$(CFLAGS_C_$(BUILDTYPE)) "
+            # $(INCS_$(BUILDTYPE)) includes the prefix '-I' while
+            # LOCAL_C_INCLUDES does not expect it.  So put it in
+            # LOCAL_CFLAGS.
+            "$(INCS_$(BUILDTYPE))"
+        )
+        # LOCAL_CXXFLAGS is obsolete and LOCAL_CPPFLAGS is preferred.
+        self.WriteLn("LOCAL_CPPFLAGS := $(CFLAGS_CC_$(BUILDTYPE))")
+        self.WriteLn("LOCAL_C_INCLUDES :=")
+        self.WriteLn("LOCAL_LDLIBS := $(LDFLAGS_$(BUILDTYPE)) $(LIBS)")
+
+        # Detect the C++ extension.
+        cpp_ext = {".cc": 0, ".cpp": 0, ".cxx": 0}
+        default_cpp_ext = ".cpp"
+        for filename in all_sources:
+            ext = os.path.splitext(filename)[1]
+            if ext in cpp_ext:
+                cpp_ext[ext] += 1
+                if cpp_ext[ext] > cpp_ext[default_cpp_ext]:
+                    default_cpp_ext = ext
+        self.WriteLn("LOCAL_CPP_EXTENSION := " + default_cpp_ext)
+
+        self.WriteList(
+            list(map(self.Absolutify, filter(Compilable, all_sources))),
+            "LOCAL_SRC_FILES",
+        )
+
+        # Filter out those which do not match prefix and suffix and produce
+        # the resulting list without prefix and suffix.
+        def DepsToModules(deps, prefix, suffix):
+            modules = []
+            for filepath in deps:
+                filename = os.path.basename(filepath)
+                if filename.startswith(prefix) and filename.endswith(suffix):
+                    modules.append(filename[len(prefix) : -len(suffix)])
+            return modules
+
+        # Retrieve the default value of 'SHARED_LIB_SUFFIX'
+        params = {"flavor": "linux"}
+        default_variables = {}
+        CalculateVariables(default_variables, params)
+
+        self.WriteList(
+            DepsToModules(
+                link_deps,
+                generator_default_variables["SHARED_LIB_PREFIX"],
+                default_variables["SHARED_LIB_SUFFIX"],
+            ),
+            "LOCAL_SHARED_LIBRARIES",
+        )
+        self.WriteList(
+            DepsToModules(
+                link_deps,
+                generator_default_variables["STATIC_LIB_PREFIX"],
+                generator_default_variables["STATIC_LIB_SUFFIX"],
+            ),
+            "LOCAL_STATIC_LIBRARIES",
+        )
+
+        if self.type == "executable":
+            self.WriteLn("include $(BUILD_EXECUTABLE)")
+        elif self.type == "shared_library":
+            self.WriteLn("include $(BUILD_SHARED_LIBRARY)")
+        elif self.type == "static_library":
+            self.WriteLn("include $(BUILD_STATIC_LIBRARY)")
+        self.WriteLn()
+
+    def WriteLn(self, text=""):
+        self.fp.write(text + "\n")
+
+    def GetSortedXcodeEnv(self, additional_settings=None):
+        return gyp.xcode_emulation.GetSortedXcodeEnv(
+            self.xcode_settings,
+            "$(abs_builddir)",
+            os.path.join("$(abs_srcdir)", self.path),
+            "$(BUILDTYPE)",
+            additional_settings,
+        )
+
+    def GetSortedXcodePostbuildEnv(self):
+        # CHROMIUM_STRIP_SAVE_FILE is a chromium-specific hack.
+        # TODO(thakis): It would be nice to have some general mechanism instead.
+        strip_save_file = self.xcode_settings.GetPerTargetSetting(
+            "CHROMIUM_STRIP_SAVE_FILE", ""
+        )
+        # Even if strip_save_file is empty, explicitly write it. Else a postbuild
+        # might pick up an export from an earlier target.
+        return self.GetSortedXcodeEnv(
+            additional_settings={"CHROMIUM_STRIP_SAVE_FILE": strip_save_file}
+        )
+
+    def WriteSortedXcodeEnv(self, target, env):
+        for k, v in env:
+            # For
+            #  foo := a\ b
+            # the escaped space does the right thing. For
+            #  export foo := a\ b
+            # it does not -- the backslash is written to the env as literal character.
+            # So don't escape spaces in |env[k]|.
+            self.WriteLn(f"{QuoteSpaces(target)}: export {k} := {v}")
+
+    def Objectify(self, path):
+        """Convert a path to its output directory form."""
+        if "$(" in path:
+            path = path.replace("$(obj)/", "$(obj).%s/$(TARGET)/" % self.toolset)
+        if "$(obj)" not in path:
+            path = f"$(obj).{self.toolset}/$(TARGET)/{path}"
+        return path
+
+    def Pchify(self, path, lang):
+        """Convert a prefix header path to its output directory form."""
+        path = self.Absolutify(path)
+        if "$(" in path:
+            path = path.replace(
+                "$(obj)/", f"$(obj).{self.toolset}/$(TARGET)/pch-{lang}"
+            )
+            return path
+        return f"$(obj).{self.toolset}/$(TARGET)/pch-{lang}/{path}"
+
+    def Absolutify(self, path):
+        """Convert a subdirectory-relative path into a base-relative path.
+        Skips over paths that contain variables."""
+        if "$(" in path:
+            # Don't call normpath in this case, as it might collapse the
+            # path too aggressively if it features '..'. However it's still
+            # important to strip trailing slashes.
+            return path.rstrip("/")
+        return os.path.normpath(os.path.join(self.path, path))
+
+    def ExpandInputRoot(self, template, expansion, dirname):
+        if "%(INPUT_ROOT)s" not in template and "%(INPUT_DIRNAME)s" not in template:
+            return template
+        path = template % {
+            "INPUT_ROOT": expansion,
+            "INPUT_DIRNAME": dirname,
+        }
+        return path
+
+    def _InstallableTargetInstallPath(self):
+        """Returns the location of the final output for an installable target."""
+        # Functionality removed for all platforms to match Xcode and hoist
+        # shared libraries into PRODUCT_DIR for users:
+        # Xcode puts shared_library results into PRODUCT_DIR, and some gyp files
+        # rely on this. Emulate this behavior for mac.
+        # if self.type == "shared_library" and (
+        #     self.flavor != "mac" or self.toolset != "target"
+        # ):
+        #    # Install all shared libs into a common directory (per toolset) for
+        #    # convenient access with LD_LIBRARY_PATH.
+        #    return "$(builddir)/lib.%s/%s" % (self.toolset, self.alias)
+        return "$(builddir)/" + self.alias
+
+
+def WriteAutoRegenerationRule(params, root_makefile, makefile_name, build_files):
+    """Write the target to regenerate the Makefile."""
+    options = params["options"]
+    build_files_args = [
+        gyp.common.RelativePath(filename, options.toplevel_dir)
+        for filename in params["build_files_arg"]
+    ]
+
+    gyp_binary = gyp.common.FixIfRelativePath(
+        params["gyp_binary"], options.toplevel_dir
+    )
+    if not gyp_binary.startswith(os.sep):
+        gyp_binary = os.path.join(".", gyp_binary)
+
+    root_makefile.write(
+        "quiet_cmd_regen_makefile = ACTION Regenerating $@\n"
+        "cmd_regen_makefile = cd $(srcdir); %(cmd)s\n"
+        "%(makefile_name)s: %(deps)s\n"
+        "\t$(call do_cmd,regen_makefile)\n\n"
+        % {
+            "makefile_name": makefile_name,
+            "deps": " ".join(SourceifyAndQuoteSpaces(bf) for bf in build_files),
+            "cmd": gyp.common.EncodePOSIXShellList(
+                [gyp_binary, "-fmake"] + gyp.RegenerateFlags(options) + build_files_args
+            ),
+        }
+    )
+
+
+def PerformBuild(data, configurations, params):
+    options = params["options"]
+    for config in configurations:
+        arguments = ["make"]
+        if options.toplevel_dir and options.toplevel_dir != ".":
+            arguments += "-C", options.toplevel_dir
+        arguments.append("BUILDTYPE=" + config)
+        print(f"Building [{config}]: {arguments}")
+        subprocess.check_call(arguments)
+
+
+def GenerateOutput(target_list, target_dicts, data, params):
+    options = params["options"]
+    flavor = gyp.common.GetFlavor(params)
+    generator_flags = params.get("generator_flags", {})
+    builddir_name = generator_flags.get("output_dir", "out")
+    android_ndk_version = generator_flags.get("android_ndk_version", None)
+    default_target = generator_flags.get("default_target", "all")
+
+    def CalculateMakefilePath(build_file, base_name):
+        """Determine where to write a Makefile for a given gyp file."""
+        # Paths in gyp files are relative to the .gyp file, but we want
+        # paths relative to the source root for the master makefile.  Grab
+        # the path of the .gyp file as the base to relativize against.
+        # E.g. "foo/bar" when we're constructing targets for "foo/bar/baz.gyp".
+        base_path = gyp.common.RelativePath(os.path.dirname(build_file), options.depth)
+        # We write the file in the base_path directory.
+        output_file = os.path.join(options.depth, base_path, base_name)
+        if options.generator_output:
+            output_file = os.path.join(
+                options.depth, options.generator_output, base_path, base_name
+            )
+        base_path = gyp.common.RelativePath(
+            os.path.dirname(build_file), options.toplevel_dir
+        )
+        return base_path, output_file
+
+    # TODO:  search for the first non-'Default' target.  This can go
+    # away when we add verification that all targets have the
+    # necessary configurations.
+    default_configuration = None
+    toolsets = {target_dicts[target]["toolset"] for target in target_list}
+    for target in target_list:
+        spec = target_dicts[target]
+        if spec["default_configuration"] != "Default":
+            default_configuration = spec["default_configuration"]
+            break
+    if not default_configuration:
+        default_configuration = "Default"
+
+    srcdir = "."
+    makefile_name = "Makefile" + options.suffix
+    makefile_path = os.path.join(options.toplevel_dir, makefile_name)
+    if options.generator_output:
+        global srcdir_prefix
+        makefile_path = os.path.join(
+            options.toplevel_dir, options.generator_output, makefile_name
+        )
+        srcdir = gyp.common.RelativePath(srcdir, options.generator_output)
+        srcdir_prefix = "$(srcdir)/"
+
+    flock_command = "flock"
+    copy_archive_arguments = "-af"
+    makedep_arguments = "-MMD"
+    header_params = {
+        "default_target": default_target,
+        "builddir": builddir_name,
+        "default_configuration": default_configuration,
+        "flock": flock_command,
+        "flock_index": 1,
+        "link_commands": LINK_COMMANDS_LINUX,
+        "extra_commands": "",
+        "srcdir": srcdir,
+        "copy_archive_args": copy_archive_arguments,
+        "makedep_args": makedep_arguments,
+        "CC.target": GetEnvironFallback(("CC_target", "CC"), "$(CC)"),
+        "AR.target": GetEnvironFallback(("AR_target", "AR"), "$(AR)"),
+        "CXX.target": GetEnvironFallback(("CXX_target", "CXX"), "$(CXX)"),
+        "LINK.target": GetEnvironFallback(("LINK_target", "LINK"), "$(LINK)"),
+        "CC.host": GetEnvironFallback(("CC_host", "CC"), "gcc"),
+        "AR.host": GetEnvironFallback(("AR_host", "AR"), "ar"),
+        "CXX.host": GetEnvironFallback(("CXX_host", "CXX"), "g++"),
+        "LINK.host": GetEnvironFallback(("LINK_host", "LINK"), "$(CXX.host)"),
+    }
+    if flavor == "mac":
+        flock_command = "./gyp-mac-tool flock"
+        header_params.update(
+            {
+                "flock": flock_command,
+                "flock_index": 2,
+                "link_commands": LINK_COMMANDS_MAC,
+                "extra_commands": SHARED_HEADER_MAC_COMMANDS,
+            }
+        )
+    elif flavor == "android":
+        header_params.update({"link_commands": LINK_COMMANDS_ANDROID})
+    elif flavor == "zos":
+        copy_archive_arguments = "-fPR"
+        makedep_arguments = "-qmakedep=gcc"
+        header_params.update(
+            {
+                "copy_archive_args": copy_archive_arguments,
+                "makedep_args": makedep_arguments,
+                "link_commands": LINK_COMMANDS_OS390,
+                "CC.target": GetEnvironFallback(("CC_target", "CC"), "njsc"),
+                "CXX.target": GetEnvironFallback(("CXX_target", "CXX"), "njsc++"),
+                "CC.host": GetEnvironFallback(("CC_host", "CC"), "njsc"),
+                "CXX.host": GetEnvironFallback(("CXX_host", "CXX"), "njsc++"),
+            }
+        )
+    elif flavor == "solaris":
+        copy_archive_arguments = "-pPRf@"
+        header_params.update(
+            {
+                "copy_archive_args": copy_archive_arguments,
+                "flock": "./gyp-flock-tool flock",
+                "flock_index": 2,
+            }
+        )
+    elif flavor == "freebsd":
+        # Note: OpenBSD has sysutils/flock. lockf seems to be FreeBSD specific.
+        header_params.update({"flock": "lockf"})
+    elif flavor == "openbsd":
+        copy_archive_arguments = "-pPRf"
+        header_params.update({"copy_archive_args": copy_archive_arguments})
+    elif flavor == "aix":
+        copy_archive_arguments = "-pPRf"
+        header_params.update(
+            {
+                "copy_archive_args": copy_archive_arguments,
+                "link_commands": LINK_COMMANDS_AIX,
+                "flock": "./gyp-flock-tool flock",
+                "flock_index": 2,
+            }
+        )
+
+    build_file, _, _ = gyp.common.ParseQualifiedTarget(target_list[0])
+    make_global_settings_array = data[build_file].get("make_global_settings", [])
+    wrappers = {}
+    for key, value in make_global_settings_array:
+        if key.endswith("_wrapper"):
+            wrappers[key[: -len("_wrapper")]] = "$(abspath %s)" % value
+    make_global_settings = ""
+    for key, value in make_global_settings_array:
+        if re.match(".*_wrapper", key):
+            continue
+        if value[0] != "$":
+            value = "$(abspath %s)" % value
+        wrapper = wrappers.get(key)
+        if wrapper:
+            value = f"{wrapper} {value}"
+            del wrappers[key]
+        if key in ("CC", "CC.host", "CXX", "CXX.host"):
+            make_global_settings += (
+                "ifneq (,$(filter $(origin %s), undefined default))\n" % key
+            )
+            # Let gyp-time envvars win over global settings.
+            env_key = key.replace(".", "_")  # CC.host -> CC_host
+            if env_key in os.environ:
+                value = os.environ[env_key]
+            make_global_settings += f"  {key} = {value}\n"
+            make_global_settings += "endif\n"
+        else:
+            make_global_settings += f"{key} ?= {value}\n"
+    # TODO(ukai): define cmd when only wrapper is specified in
+    # make_global_settings.
+
+    header_params["make_global_settings"] = make_global_settings
+
+    gyp.common.EnsureDirExists(makefile_path)
+    root_makefile = open(makefile_path, "w")
+    root_makefile.write(SHARED_HEADER % header_params)
+    # Currently any versions have the same effect, but in future the behavior
+    # could be different.
+    if android_ndk_version:
+        root_makefile.write(
+            "# Define LOCAL_PATH for build of Android applications.\n"
+            "LOCAL_PATH := $(call my-dir)\n"
+            "\n"
+        )
+    for toolset in toolsets:
+        root_makefile.write("TOOLSET := %s\n" % toolset)
+        WriteRootHeaderSuffixRules(root_makefile)
+
+    # Put build-time support tools next to the root Makefile.
+    dest_path = os.path.dirname(makefile_path)
+    gyp.common.CopyTool(flavor, dest_path)
+
+    # Find the list of targets that derive from the gyp file(s) being built.
+    needed_targets = set()
+    for build_file in params["build_files"]:
+        for target in gyp.common.AllTargets(target_list, target_dicts, build_file):
+            needed_targets.add(target)
+
+    build_files = set()
+    include_list = set()
+    for qualified_target in target_list:
+        build_file, target, toolset = gyp.common.ParseQualifiedTarget(qualified_target)
+
+        this_make_global_settings = data[build_file].get("make_global_settings", [])
+        assert make_global_settings_array == this_make_global_settings, (
+            "make_global_settings needs to be the same for all targets "
+            f"{this_make_global_settings} vs. {make_global_settings}"
+        )
+
+        build_files.add(gyp.common.RelativePath(build_file, options.toplevel_dir))
+        included_files = data[build_file]["included_files"]
+        for included_file in included_files:
+            # The included_files entries are relative to the dir of the build file
+            # that included them, so we have to undo that and then make them relative
+            # to the root dir.
+            relative_include_file = gyp.common.RelativePath(
+                gyp.common.UnrelativePath(included_file, build_file),
+                options.toplevel_dir,
+            )
+            abs_include_file = os.path.abspath(relative_include_file)
+            # If the include file is from the ~/.gyp dir, we should use absolute path
+            # so that relocating the src dir doesn't break the path.
+            if params["home_dot_gyp"] and abs_include_file.startswith(
+                params["home_dot_gyp"]
+            ):
+                build_files.add(abs_include_file)
+            else:
+                build_files.add(relative_include_file)
+
+        base_path, output_file = CalculateMakefilePath(
+            build_file, target + "." + toolset + options.suffix + ".mk"
+        )
+
+        spec = target_dicts[qualified_target]
+        configs = spec["configurations"]
+
+        if flavor == "mac":
+            gyp.xcode_emulation.MergeGlobalXcodeSettingsToSpec(data[build_file], spec)
+
+        writer = MakefileWriter(generator_flags, flavor)
+        writer.Write(
+            qualified_target,
+            base_path,
+            output_file,
+            spec,
+            configs,
+            part_of_all=qualified_target in needed_targets,
+        )
+
+        # Our root_makefile lives at the source root.  Compute the relative path
+        # from there to the output_file for including.
+        mkfile_rel_path = gyp.common.RelativePath(
+            output_file, os.path.dirname(makefile_path)
+        )
+        include_list.add(mkfile_rel_path)
+
+    # Write out per-gyp (sub-project) Makefiles.
+    depth_rel_path = gyp.common.RelativePath(options.depth, os.getcwd())
+    for build_file in build_files:
+        # The paths in build_files were relativized above, so undo that before
+        # testing against the non-relativized items in target_list and before
+        # calculating the Makefile path.
+        build_file = os.path.join(depth_rel_path, build_file)
+        gyp_targets = [
+            target_dicts[qualified_target]["target_name"]
+            for qualified_target in target_list
+            if qualified_target.startswith(build_file)
+            and qualified_target in needed_targets
+        ]
+        # Only generate Makefiles for gyp files with targets.
+        if not gyp_targets:
+            continue
+        base_path, output_file = CalculateMakefilePath(
+            build_file, os.path.splitext(os.path.basename(build_file))[0] + ".Makefile"
+        )
+        makefile_rel_path = gyp.common.RelativePath(
+            os.path.dirname(makefile_path), os.path.dirname(output_file)
+        )
+        writer.WriteSubMake(output_file, makefile_rel_path, gyp_targets, builddir_name)
+
+    # Write out the sorted list of includes.
+    root_makefile.write("\n")
+    for include_file in sorted(include_list):
+        # We wrap each .mk include in an if statement so users can tell make to
+        # not load a file by setting NO_LOAD.  The below make code says, only
+        # load the .mk file if the .mk filename doesn't start with a token in
+        # NO_LOAD.
+        root_makefile.write(
+            "ifeq ($(strip $(foreach prefix,$(NO_LOAD),\\\n"
+            "    $(findstring $(join ^,$(prefix)),\\\n"
+            "                 $(join ^," + include_file + ")))),)\n"
+        )
+        root_makefile.write("  include " + include_file + "\n")
+        root_makefile.write("endif\n")
+    root_makefile.write("\n")
+
+    if not generator_flags.get("standalone") and generator_flags.get(
+        "auto_regeneration", True
+    ):
+        WriteAutoRegenerationRule(params, root_makefile, makefile_name, build_files)
+
+    root_makefile.write(SHARED_FOOTER)
+
+    root_makefile.close()
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/msvs.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/msvs.py
new file mode 100644
index 0000000..8308fa8
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/msvs.py
@@ -0,0 +1,3978 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+import ntpath
+import os
+import posixpath
+import re
+import subprocess
+import sys
+
+from collections import OrderedDict
+
+import gyp.common
+import gyp.easy_xml as easy_xml
+import gyp.generator.ninja as ninja_generator
+import gyp.MSVSNew as MSVSNew
+import gyp.MSVSProject as MSVSProject
+import gyp.MSVSSettings as MSVSSettings
+import gyp.MSVSToolFile as MSVSToolFile
+import gyp.MSVSUserFile as MSVSUserFile
+import gyp.MSVSUtil as MSVSUtil
+import gyp.MSVSVersion as MSVSVersion
+from gyp.common import GypError
+from gyp.common import OrderedSet
+
+
+# Regular expression for validating Visual Studio GUIDs.  If the GUID
+# contains lowercase hex letters, MSVS will be fine. However,
+# IncrediBuild BuildConsole will parse the solution file, but then
+# silently skip building the target causing hard to track down errors.
+# Note that this only happens with the BuildConsole, and does not occur
+# if IncrediBuild is executed from inside Visual Studio.  This regex
+# validates that the string looks like a GUID with all uppercase hex
+# letters.
+VALID_MSVS_GUID_CHARS = re.compile(r"^[A-F0-9\-]+$")
+
+generator_supports_multiple_toolsets = gyp.common.CrossCompileRequested()
+
+generator_default_variables = {
+    "DRIVER_PREFIX": "",
+    "DRIVER_SUFFIX": ".sys",
+    "EXECUTABLE_PREFIX": "",
+    "EXECUTABLE_SUFFIX": ".exe",
+    "STATIC_LIB_PREFIX": "",
+    "SHARED_LIB_PREFIX": "",
+    "STATIC_LIB_SUFFIX": ".lib",
+    "SHARED_LIB_SUFFIX": ".dll",
+    "INTERMEDIATE_DIR": "$(IntDir)",
+    "SHARED_INTERMEDIATE_DIR": "$(OutDir)/obj/global_intermediate",
+    "OS": "win",
+    "PRODUCT_DIR": "$(OutDir)",
+    "LIB_DIR": "$(OutDir)lib",
+    "RULE_INPUT_ROOT": "$(InputName)",
+    "RULE_INPUT_DIRNAME": "$(InputDir)",
+    "RULE_INPUT_EXT": "$(InputExt)",
+    "RULE_INPUT_NAME": "$(InputFileName)",
+    "RULE_INPUT_PATH": "$(InputPath)",
+    "CONFIGURATION_NAME": "$(ConfigurationName)",
+}
+
+
+# The msvs specific sections that hold paths
+generator_additional_path_sections = [
+    "msvs_cygwin_dirs",
+    "msvs_props",
+]
+
+
+generator_additional_non_configuration_keys = [
+    "msvs_cygwin_dirs",
+    "msvs_cygwin_shell",
+    "msvs_large_pdb",
+    "msvs_shard",
+    "msvs_external_builder",
+    "msvs_external_builder_out_dir",
+    "msvs_external_builder_build_cmd",
+    "msvs_external_builder_clean_cmd",
+    "msvs_external_builder_clcompile_cmd",
+    "msvs_enable_winrt",
+    "msvs_requires_importlibrary",
+    "msvs_enable_winphone",
+    "msvs_application_type_revision",
+    "msvs_target_platform_version",
+    "msvs_target_platform_minversion",
+]
+
+generator_filelist_paths = None
+
+# List of precompiled header related keys.
+precomp_keys = [
+    "msvs_precompiled_header",
+    "msvs_precompiled_source",
+]
+
+
+cached_username = None
+
+
+cached_domain = None
+
+
+# TODO(gspencer): Switch the os.environ calls to be
+# win32api.GetDomainName() and win32api.GetUserName() once the
+# python version in depot_tools has been updated to work on Vista
+# 64-bit.
+def _GetDomainAndUserName():
+    if sys.platform not in ("win32", "cygwin"):
+        return ("DOMAIN", "USERNAME")
+    global cached_username
+    global cached_domain
+    if not cached_domain or not cached_username:
+        domain = os.environ.get("USERDOMAIN")
+        username = os.environ.get("USERNAME")
+        if not domain or not username:
+            call = subprocess.Popen(
+                ["net", "config", "Workstation"], stdout=subprocess.PIPE
+            )
+            config = call.communicate()[0].decode("utf-8")
+            username_re = re.compile(r"^User name\s+(\S+)", re.MULTILINE)
+            username_match = username_re.search(config)
+            if username_match:
+                username = username_match.group(1)
+            domain_re = re.compile(r"^Logon domain\s+(\S+)", re.MULTILINE)
+            domain_match = domain_re.search(config)
+            if domain_match:
+                domain = domain_match.group(1)
+        cached_domain = domain
+        cached_username = username
+    return (cached_domain, cached_username)
+
+
+fixpath_prefix = None
+
+
+def _NormalizedSource(source):
+    """Normalize the path.
+
+  But not if that gets rid of a variable, as this may expand to something
+  larger than one directory.
+
+  Arguments:
+      source: The path to be normalize.d
+
+  Returns:
+      The normalized path.
+  """
+    normalized = os.path.normpath(source)
+    if source.count("$") == normalized.count("$"):
+        source = normalized
+    return source
+
+
+def _FixPath(path, separator="\\"):
+    """Convert paths to a form that will make sense in a vcproj file.
+
+  Arguments:
+    path: The path to convert, may contain / etc.
+  Returns:
+    The path with all slashes made into backslashes.
+  """
+    if (
+        fixpath_prefix
+        and path
+        and not os.path.isabs(path)
+        and not path[0] == "$"
+        and not _IsWindowsAbsPath(path)
+    ):
+        path = os.path.join(fixpath_prefix, path)
+    if separator == "\\":
+        path = path.replace("/", "\\")
+    path = _NormalizedSource(path)
+    if separator == "/":
+        path = path.replace("\\", "/")
+    if path and path[-1] == separator:
+        path = path[:-1]
+    return path
+
+
+def _IsWindowsAbsPath(path):
+    """
+  On Cygwin systems Python needs a little help determining if a path
+  is an absolute Windows path or not, so that
+  it does not treat those as relative, which results in bad paths like:
+  '..\\C:\\<some path>\\some_source_code_file.cc'
+  """
+    return path.startswith("c:") or path.startswith("C:")
+
+
+def _FixPaths(paths, separator="\\"):
+    """Fix each of the paths of the list."""
+    return [_FixPath(i, separator) for i in paths]
+
+
+def _ConvertSourcesToFilterHierarchy(
+    sources, prefix=None, excluded=None, list_excluded=True, msvs_version=None
+):
+    """Converts a list split source file paths into a vcproj folder hierarchy.
+
+  Arguments:
+    sources: A list of source file paths split.
+    prefix: A list of source file path layers meant to apply to each of sources.
+    excluded: A set of excluded files.
+    msvs_version: A MSVSVersion object.
+
+  Returns:
+    A hierarchy of filenames and MSVSProject.Filter objects that matches the
+    layout of the source tree.
+    For example:
+    _ConvertSourcesToFilterHierarchy([['a', 'bob1.c'], ['b', 'bob2.c']],
+                                     prefix=['joe'])
+    -->
+    [MSVSProject.Filter('a', contents=['joe\\a\\bob1.c']),
+     MSVSProject.Filter('b', contents=['joe\\b\\bob2.c'])]
+  """
+    if not prefix:
+        prefix = []
+    result = []
+    excluded_result = []
+    folders = OrderedDict()
+    # Gather files into the final result, excluded, or folders.
+    for s in sources:
+        if len(s) == 1:
+            filename = _NormalizedSource("\\".join(prefix + s))
+            if filename in excluded:
+                excluded_result.append(filename)
+            else:
+                result.append(filename)
+        elif msvs_version and not msvs_version.UsesVcxproj():
+            # For MSVS 2008 and earlier, we need to process all files before walking
+            # the sub folders.
+            if not folders.get(s[0]):
+                folders[s[0]] = []
+            folders[s[0]].append(s[1:])
+        else:
+            contents = _ConvertSourcesToFilterHierarchy(
+                [s[1:]],
+                prefix + [s[0]],
+                excluded=excluded,
+                list_excluded=list_excluded,
+                msvs_version=msvs_version,
+            )
+            contents = MSVSProject.Filter(s[0], contents=contents)
+            result.append(contents)
+    # Add a folder for excluded files.
+    if excluded_result and list_excluded:
+        excluded_folder = MSVSProject.Filter(
+            "_excluded_files", contents=excluded_result
+        )
+        result.append(excluded_folder)
+
+    if msvs_version and msvs_version.UsesVcxproj():
+        return result
+
+    # Populate all the folders.
+    for f in folders:
+        contents = _ConvertSourcesToFilterHierarchy(
+            folders[f],
+            prefix=prefix + [f],
+            excluded=excluded,
+            list_excluded=list_excluded,
+            msvs_version=msvs_version,
+        )
+        contents = MSVSProject.Filter(f, contents=contents)
+        result.append(contents)
+    return result
+
+
+def _ToolAppend(tools, tool_name, setting, value, only_if_unset=False):
+    if not value:
+        return
+    _ToolSetOrAppend(tools, tool_name, setting, value, only_if_unset)
+
+
+def _ToolSetOrAppend(tools, tool_name, setting, value, only_if_unset=False):
+    # TODO(bradnelson): ugly hack, fix this more generally!!!
+    if "Directories" in setting or "Dependencies" in setting:
+        if type(value) == str:
+            value = value.replace("/", "\\")
+        else:
+            value = [i.replace("/", "\\") for i in value]
+    if not tools.get(tool_name):
+        tools[tool_name] = dict()
+    tool = tools[tool_name]
+    if "CompileAsWinRT" == setting:
+        return
+    if tool.get(setting):
+        if only_if_unset:
+            return
+        if type(tool[setting]) == list and type(value) == list:
+            tool[setting] += value
+        else:
+            raise TypeError(
+                'Appending "%s" to a non-list setting "%s" for tool "%s" is '
+                "not allowed, previous value: %s"
+                % (value, setting, tool_name, str(tool[setting]))
+            )
+    else:
+        tool[setting] = value
+
+
+def _ConfigTargetVersion(config_data):
+    return config_data.get("msvs_target_version", "Windows7")
+
+
+def _ConfigPlatform(config_data):
+    return config_data.get("msvs_configuration_platform", "Win32")
+
+
+def _ConfigBaseName(config_name, platform_name):
+    if config_name.endswith("_" + platform_name):
+        return config_name[0 : -len(platform_name) - 1]
+    else:
+        return config_name
+
+
+def _ConfigFullName(config_name, config_data):
+    platform_name = _ConfigPlatform(config_data)
+    return f"{_ConfigBaseName(config_name, platform_name)}|{platform_name}"
+
+
+def _ConfigWindowsTargetPlatformVersion(config_data, version):
+    target_ver = config_data.get("msvs_windows_target_platform_version")
+    if target_ver and re.match(r"^\d+", target_ver):
+        return target_ver
+    config_ver = config_data.get("msvs_windows_sdk_version")
+    vers = [config_ver] if config_ver else version.compatible_sdks
+    for ver in vers:
+        for key in [
+            r"HKLM\Software\Microsoft\Microsoft SDKs\Windows\%s",
+            r"HKLM\Software\Wow6432Node\Microsoft\Microsoft SDKs\Windows\%s",
+        ]:
+            sdk_dir = MSVSVersion._RegistryGetValue(key % ver, "InstallationFolder")
+            if not sdk_dir:
+                continue
+            version = MSVSVersion._RegistryGetValue(key % ver, "ProductVersion") or ""
+            # Find a matching entry in sdk_dir\include.
+            expected_sdk_dir = r"%s\include" % sdk_dir
+            names = sorted(
+                (
+                    x
+                    for x in (
+                        os.listdir(expected_sdk_dir)
+                        if os.path.isdir(expected_sdk_dir)
+                        else []
+                    )
+                    if x.startswith(version)
+                ),
+                reverse=True,
+            )
+            if names:
+                return names[0]
+            else:
+                print(
+                    "Warning: No include files found for detected "
+                    "Windows SDK version %s" % (version),
+                    file=sys.stdout,
+                )
+
+
+def _BuildCommandLineForRuleRaw(
+    spec, cmd, cygwin_shell, has_input_path, quote_cmd, do_setup_env
+):
+
+    if [x for x in cmd if "$(InputDir)" in x]:
+        input_dir_preamble = (
+            "set INPUTDIR=$(InputDir)\n"
+            "if NOT DEFINED INPUTDIR set INPUTDIR=.\\\n"
+            "set INPUTDIR=%INPUTDIR:~0,-1%\n"
+        )
+    else:
+        input_dir_preamble = ""
+
+    if cygwin_shell:
+        # Find path to cygwin.
+        cygwin_dir = _FixPath(spec.get("msvs_cygwin_dirs", ["."])[0])
+        # Prepare command.
+        direct_cmd = cmd
+        direct_cmd = [
+            i.replace("$(IntDir)", '`cygpath -m "${INTDIR}"`') for i in direct_cmd
+        ]
+        direct_cmd = [
+            i.replace("$(OutDir)", '`cygpath -m "${OUTDIR}"`') for i in direct_cmd
+        ]
+        direct_cmd = [
+            i.replace("$(InputDir)", '`cygpath -m "${INPUTDIR}"`') for i in direct_cmd
+        ]
+        if has_input_path:
+            direct_cmd = [
+                i.replace("$(InputPath)", '`cygpath -m "${INPUTPATH}"`')
+                for i in direct_cmd
+            ]
+        direct_cmd = ['\\"%s\\"' % i.replace('"', '\\\\\\"') for i in direct_cmd]
+        # direct_cmd = gyp.common.EncodePOSIXShellList(direct_cmd)
+        direct_cmd = " ".join(direct_cmd)
+        # TODO(quote):  regularize quoting path names throughout the module
+        cmd = ""
+        if do_setup_env:
+            cmd += 'call "$(ProjectDir)%(cygwin_dir)s\\setup_env.bat" && '
+        cmd += "set CYGWIN=nontsec&& "
+        if direct_cmd.find("NUMBER_OF_PROCESSORS") >= 0:
+            cmd += "set /a NUMBER_OF_PROCESSORS_PLUS_1=%%NUMBER_OF_PROCESSORS%%+1&& "
+        if direct_cmd.find("INTDIR") >= 0:
+            cmd += "set INTDIR=$(IntDir)&& "
+        if direct_cmd.find("OUTDIR") >= 0:
+            cmd += "set OUTDIR=$(OutDir)&& "
+        if has_input_path and direct_cmd.find("INPUTPATH") >= 0:
+            cmd += "set INPUTPATH=$(InputPath) && "
+        cmd += 'bash -c "%(cmd)s"'
+        cmd = cmd % {"cygwin_dir": cygwin_dir, "cmd": direct_cmd}
+        return input_dir_preamble + cmd
+    else:
+        # Convert cat --> type to mimic unix.
+        if cmd[0] == "cat":
+            command = ["type"]
+        else:
+            command = [cmd[0].replace("/", "\\")]
+        # Add call before command to ensure that commands can be tied together one
+        # after the other without aborting in Incredibuild, since IB makes a bat
+        # file out of the raw command string, and some commands (like python) are
+        # actually batch files themselves.
+        command.insert(0, "call")
+        # Fix the paths
+        # TODO(quote): This is a really ugly heuristic, and will miss path fixing
+        #              for arguments like "--arg=path" or "/opt:path".
+        # If the argument starts with a slash or dash, it's probably a command line
+        # switch
+        # Return the path with forward slashes because the command using it might
+        # not support backslashes.
+        arguments = [i if (i[:1] in "/-") else _FixPath(i, "/") for i in cmd[1:]]
+        arguments = [i.replace("$(InputDir)", "%INPUTDIR%") for i in arguments]
+        arguments = [MSVSSettings.FixVCMacroSlashes(i) for i in arguments]
+        if quote_cmd:
+            # Support a mode for using cmd directly.
+            # Convert any paths to native form (first element is used directly).
+            # TODO(quote):  regularize quoting path names throughout the module
+            arguments = ['"%s"' % i for i in arguments]
+        # Collapse into a single command.
+        return input_dir_preamble + " ".join(command + arguments)
+
+
+def _BuildCommandLineForRule(spec, rule, has_input_path, do_setup_env):
+    # Currently this weird argument munging is used to duplicate the way a
+    # python script would need to be run as part of the chrome tree.
+    # Eventually we should add some sort of rule_default option to set this
+    # per project. For now the behavior chrome needs is the default.
+    mcs = rule.get("msvs_cygwin_shell")
+    if mcs is None:
+        mcs = int(spec.get("msvs_cygwin_shell", 1))
+    elif isinstance(mcs, str):
+        mcs = int(mcs)
+    quote_cmd = int(rule.get("msvs_quote_cmd", 1))
+    return _BuildCommandLineForRuleRaw(
+        spec, rule["action"], mcs, has_input_path, quote_cmd, do_setup_env=do_setup_env
+    )
+
+
+def _AddActionStep(actions_dict, inputs, outputs, description, command):
+    """Merge action into an existing list of actions.
+
+  Care must be taken so that actions which have overlapping inputs either don't
+  get assigned to the same input, or get collapsed into one.
+
+  Arguments:
+    actions_dict: dictionary keyed on input name, which maps to a list of
+      dicts describing the actions attached to that input file.
+    inputs: list of inputs
+    outputs: list of outputs
+    description: description of the action
+    command: command line to execute
+  """
+    # Require there to be at least one input (call sites will ensure this).
+    assert inputs
+
+    action = {
+        "inputs": inputs,
+        "outputs": outputs,
+        "description": description,
+        "command": command,
+    }
+
+    # Pick where to stick this action.
+    # While less than optimal in terms of build time, attach them to the first
+    # input for now.
+    chosen_input = inputs[0]
+
+    # Add it there.
+    if chosen_input not in actions_dict:
+        actions_dict[chosen_input] = []
+    actions_dict[chosen_input].append(action)
+
+
+def _AddCustomBuildToolForMSVS(
+    p, spec, primary_input, inputs, outputs, description, cmd
+):
+    """Add a custom build tool to execute something.
+
+  Arguments:
+    p: the target project
+    spec: the target project dict
+    primary_input: input file to attach the build tool to
+    inputs: list of inputs
+    outputs: list of outputs
+    description: description of the action
+    cmd: command line to execute
+  """
+    inputs = _FixPaths(inputs)
+    outputs = _FixPaths(outputs)
+    tool = MSVSProject.Tool(
+        "VCCustomBuildTool",
+        {
+            "Description": description,
+            "AdditionalDependencies": ";".join(inputs),
+            "Outputs": ";".join(outputs),
+            "CommandLine": cmd,
+        },
+    )
+    # Add to the properties of primary input for each config.
+    for config_name, c_data in spec["configurations"].items():
+        p.AddFileConfig(
+            _FixPath(primary_input), _ConfigFullName(config_name, c_data), tools=[tool]
+        )
+
+
+def _AddAccumulatedActionsToMSVS(p, spec, actions_dict):
+    """Add actions accumulated into an actions_dict, merging as needed.
+
+  Arguments:
+    p: the target project
+    spec: the target project dict
+    actions_dict: dictionary keyed on input name, which maps to a list of
+        dicts describing the actions attached to that input file.
+  """
+    for primary_input in actions_dict:
+        inputs = OrderedSet()
+        outputs = OrderedSet()
+        descriptions = []
+        commands = []
+        for action in actions_dict[primary_input]:
+            inputs.update(OrderedSet(action["inputs"]))
+            outputs.update(OrderedSet(action["outputs"]))
+            descriptions.append(action["description"])
+            commands.append(action["command"])
+        # Add the custom build step for one input file.
+        description = ", and also ".join(descriptions)
+        command = "\r\n".join(commands)
+        _AddCustomBuildToolForMSVS(
+            p,
+            spec,
+            primary_input=primary_input,
+            inputs=inputs,
+            outputs=outputs,
+            description=description,
+            cmd=command,
+        )
+
+
+def _RuleExpandPath(path, input_file):
+    """Given the input file to which a rule applied, string substitute a path.
+
+  Arguments:
+    path: a path to string expand
+    input_file: the file to which the rule applied.
+  Returns:
+    The string substituted path.
+  """
+    path = path.replace(
+        "$(InputName)", os.path.splitext(os.path.split(input_file)[1])[0]
+    )
+    path = path.replace("$(InputDir)", os.path.dirname(input_file))
+    path = path.replace(
+        "$(InputExt)", os.path.splitext(os.path.split(input_file)[1])[1]
+    )
+    path = path.replace("$(InputFileName)", os.path.split(input_file)[1])
+    path = path.replace("$(InputPath)", input_file)
+    return path
+
+
+def _FindRuleTriggerFiles(rule, sources):
+    """Find the list of files which a particular rule applies to.
+
+  Arguments:
+    rule: the rule in question
+    sources: the set of all known source files for this project
+  Returns:
+    The list of sources that trigger a particular rule.
+  """
+    return rule.get("rule_sources", [])
+
+
+def _RuleInputsAndOutputs(rule, trigger_file):
+    """Find the inputs and outputs generated by a rule.
+
+  Arguments:
+    rule: the rule in question.
+    trigger_file: the main trigger for this rule.
+  Returns:
+    The pair of (inputs, outputs) involved in this rule.
+  """
+    raw_inputs = _FixPaths(rule.get("inputs", []))
+    raw_outputs = _FixPaths(rule.get("outputs", []))
+    inputs = OrderedSet()
+    outputs = OrderedSet()
+    inputs.add(trigger_file)
+    for i in raw_inputs:
+        inputs.add(_RuleExpandPath(i, trigger_file))
+    for o in raw_outputs:
+        outputs.add(_RuleExpandPath(o, trigger_file))
+    return (inputs, outputs)
+
+
+def _GenerateNativeRulesForMSVS(p, rules, output_dir, spec, options):
+    """Generate a native rules file.
+
+  Arguments:
+    p: the target project
+    rules: the set of rules to include
+    output_dir: the directory in which the project/gyp resides
+    spec: the project dict
+    options: global generator options
+  """
+    rules_filename = "{}{}.rules".format(spec["target_name"], options.suffix)
+    rules_file = MSVSToolFile.Writer(
+        os.path.join(output_dir, rules_filename), spec["target_name"]
+    )
+    # Add each rule.
+    for r in rules:
+        rule_name = r["rule_name"]
+        rule_ext = r["extension"]
+        inputs = _FixPaths(r.get("inputs", []))
+        outputs = _FixPaths(r.get("outputs", []))
+        # Skip a rule with no action and no inputs.
+        if "action" not in r and not r.get("rule_sources", []):
+            continue
+        cmd = _BuildCommandLineForRule(spec, r, has_input_path=True, do_setup_env=True)
+        rules_file.AddCustomBuildRule(
+            name=rule_name,
+            description=r.get("message", rule_name),
+            extensions=[rule_ext],
+            additional_dependencies=inputs,
+            outputs=outputs,
+            cmd=cmd,
+        )
+    # Write out rules file.
+    rules_file.WriteIfChanged()
+
+    # Add rules file to project.
+    p.AddToolFile(rules_filename)
+
+
+def _Cygwinify(path):
+    path = path.replace("$(OutDir)", "$(OutDirCygwin)")
+    path = path.replace("$(IntDir)", "$(IntDirCygwin)")
+    return path
+
+
+def _GenerateExternalRules(rules, output_dir, spec, sources, options, actions_to_add):
+    """Generate an external makefile to do a set of rules.
+
+  Arguments:
+    rules: the list of rules to include
+    output_dir: path containing project and gyp files
+    spec: project specification data
+    sources: set of sources known
+    options: global generator options
+    actions_to_add: The list of actions we will add to.
+  """
+    filename = "{}_rules{}.mk".format(spec["target_name"], options.suffix)
+    mk_file = gyp.common.WriteOnDiff(os.path.join(output_dir, filename))
+    # Find cygwin style versions of some paths.
+    mk_file.write('OutDirCygwin:=$(shell cygpath -u "$(OutDir)")\n')
+    mk_file.write('IntDirCygwin:=$(shell cygpath -u "$(IntDir)")\n')
+    # Gather stuff needed to emit all: target.
+    all_inputs = OrderedSet()
+    all_outputs = OrderedSet()
+    all_output_dirs = OrderedSet()
+    first_outputs = []
+    for rule in rules:
+        trigger_files = _FindRuleTriggerFiles(rule, sources)
+        for tf in trigger_files:
+            inputs, outputs = _RuleInputsAndOutputs(rule, tf)
+            all_inputs.update(OrderedSet(inputs))
+            all_outputs.update(OrderedSet(outputs))
+            # Only use one target from each rule as the dependency for
+            # 'all' so we don't try to build each rule multiple times.
+            first_outputs.append(list(outputs)[0])
+            # Get the unique output directories for this rule.
+            output_dirs = [os.path.split(i)[0] for i in outputs]
+            for od in output_dirs:
+                all_output_dirs.add(od)
+    first_outputs_cyg = [_Cygwinify(i) for i in first_outputs]
+    # Write out all: target, including mkdir for each output directory.
+    mk_file.write("all: %s\n" % " ".join(first_outputs_cyg))
+    for od in all_output_dirs:
+        if od:
+            mk_file.write('\tmkdir -p `cygpath -u "%s"`\n' % od)
+    mk_file.write("\n")
+    # Define how each output is generated.
+    for rule in rules:
+        trigger_files = _FindRuleTriggerFiles(rule, sources)
+        for tf in trigger_files:
+            # Get all the inputs and outputs for this rule for this trigger file.
+            inputs, outputs = _RuleInputsAndOutputs(rule, tf)
+            inputs = [_Cygwinify(i) for i in inputs]
+            outputs = [_Cygwinify(i) for i in outputs]
+            # Prepare the command line for this rule.
+            cmd = [_RuleExpandPath(c, tf) for c in rule["action"]]
+            cmd = ['"%s"' % i for i in cmd]
+            cmd = " ".join(cmd)
+            # Add it to the makefile.
+            mk_file.write("{}: {}\n".format(" ".join(outputs), " ".join(inputs)))
+            mk_file.write("\t%s\n\n" % cmd)
+    # Close up the file.
+    mk_file.close()
+
+    # Add makefile to list of sources.
+    sources.add(filename)
+    # Add a build action to call makefile.
+    cmd = [
+        "make",
+        "OutDir=$(OutDir)",
+        "IntDir=$(IntDir)",
+        "-j",
+        "${NUMBER_OF_PROCESSORS_PLUS_1}",
+        "-f",
+        filename,
+    ]
+    cmd = _BuildCommandLineForRuleRaw(spec, cmd, True, False, True, True)
+    # Insert makefile as 0'th input, so it gets the action attached there,
+    # as this is easier to understand from in the IDE.
+    all_inputs = list(all_inputs)
+    all_inputs.insert(0, filename)
+    _AddActionStep(
+        actions_to_add,
+        inputs=_FixPaths(all_inputs),
+        outputs=_FixPaths(all_outputs),
+        description="Running external rules for %s" % spec["target_name"],
+        command=cmd,
+    )
+
+
+def _EscapeEnvironmentVariableExpansion(s):
+    """Escapes % characters.
+
+  Escapes any % characters so that Windows-style environment variable
+  expansions will leave them alone.
+  See http://connect.microsoft.com/VisualStudio/feedback/details/106127/cl-d-name-text-containing-percentage-characters-doesnt-compile
+  to understand why we have to do this.
+
+  Args:
+      s: The string to be escaped.
+
+  Returns:
+      The escaped string.
+  """  # noqa: E731,E123,E501
+    s = s.replace("%", "%%")
+    return s
+
+
+quote_replacer_regex = re.compile(r'(\\*)"')
+
+
+def _EscapeCommandLineArgumentForMSVS(s):
+    """Escapes a Windows command-line argument.
+
+  So that the Win32 CommandLineToArgv function will turn the escaped result back
+  into the original string.
+  See http://msdn.microsoft.com/en-us/library/17w5ykft.aspx
+  ("Parsing C++ Command-Line Arguments") to understand why we have to do
+  this.
+
+  Args:
+      s: the string to be escaped.
+  Returns:
+      the escaped string.
+  """
+
+    def _Replace(match):
+        # For a literal quote, CommandLineToArgv requires an odd number of
+        # backslashes preceding it, and it produces half as many literal backslashes
+        # (rounded down). So we need to produce 2n+1 backslashes.
+        return 2 * match.group(1) + '\\"'
+
+    # Escape all quotes so that they are interpreted literally.
+    s = quote_replacer_regex.sub(_Replace, s)
+    # Now add unescaped quotes so that any whitespace is interpreted literally.
+    s = '"' + s + '"'
+    return s
+
+
+delimiters_replacer_regex = re.compile(r"(\\*)([,;]+)")
+
+
+def _EscapeVCProjCommandLineArgListItem(s):
+    """Escapes command line arguments for MSVS.
+
+  The VCProj format stores string lists in a single string using commas and
+  semi-colons as separators, which must be quoted if they are to be
+  interpreted literally. However, command-line arguments may already have
+  quotes, and the VCProj parser is ignorant of the backslash escaping
+  convention used by CommandLineToArgv, so the command-line quotes and the
+  VCProj quotes may not be the same quotes. So to store a general
+  command-line argument in a VCProj list, we need to parse the existing
+  quoting according to VCProj's convention and quote any delimiters that are
+  not already quoted by that convention. The quotes that we add will also be
+  seen by CommandLineToArgv, so if backslashes precede them then we also have
+  to escape those backslashes according to the CommandLineToArgv
+  convention.
+
+  Args:
+      s: the string to be escaped.
+  Returns:
+      the escaped string.
+  """
+
+    def _Replace(match):
+        # For a non-literal quote, CommandLineToArgv requires an even number of
+        # backslashes preceding it, and it produces half as many literal
+        # backslashes. So we need to produce 2n backslashes.
+        return 2 * match.group(1) + '"' + match.group(2) + '"'
+
+    segments = s.split('"')
+    # The unquoted segments are at the even-numbered indices.
+    for i in range(0, len(segments), 2):
+        segments[i] = delimiters_replacer_regex.sub(_Replace, segments[i])
+    # Concatenate back into a single string
+    s = '"'.join(segments)
+    if len(segments) % 2 == 0:
+        # String ends while still quoted according to VCProj's convention. This
+        # means the delimiter and the next list item that follow this one in the
+        # .vcproj file will be misinterpreted as part of this item. There is nothing
+        # we can do about this. Adding an extra quote would correct the problem in
+        # the VCProj but cause the same problem on the final command-line. Moving
+        # the item to the end of the list does works, but that's only possible if
+        # there's only one such item. Let's just warn the user.
+        print(
+            "Warning: MSVS may misinterpret the odd number of " + "quotes in " + s,
+            file=sys.stderr,
+        )
+    return s
+
+
+def _EscapeCppDefineForMSVS(s):
+    """Escapes a CPP define so that it will reach the compiler unaltered."""
+    s = _EscapeEnvironmentVariableExpansion(s)
+    s = _EscapeCommandLineArgumentForMSVS(s)
+    s = _EscapeVCProjCommandLineArgListItem(s)
+    # cl.exe replaces literal # characters with = in preprocessor definitions for
+    # some reason. Octal-encode to work around that.
+    s = s.replace("#", "\\%03o" % ord("#"))
+    return s
+
+
+quote_replacer_regex2 = re.compile(r'(\\+)"')
+
+
+def _EscapeCommandLineArgumentForMSBuild(s):
+    """Escapes a Windows command-line argument for use by MSBuild."""
+
+    def _Replace(match):
+        return (len(match.group(1)) / 2 * 4) * "\\" + '\\"'
+
+    # Escape all quotes so that they are interpreted literally.
+    s = quote_replacer_regex2.sub(_Replace, s)
+    return s
+
+
+def _EscapeMSBuildSpecialCharacters(s):
+    escape_dictionary = {
+        "%": "%25",
+        "$": "%24",
+        "@": "%40",
+        "'": "%27",
+        ";": "%3B",
+        "?": "%3F",
+        "*": "%2A",
+    }
+    result = "".join([escape_dictionary.get(c, c) for c in s])
+    return result
+
+
+def _EscapeCppDefineForMSBuild(s):
+    """Escapes a CPP define so that it will reach the compiler unaltered."""
+    s = _EscapeEnvironmentVariableExpansion(s)
+    s = _EscapeCommandLineArgumentForMSBuild(s)
+    s = _EscapeMSBuildSpecialCharacters(s)
+    # cl.exe replaces literal # characters with = in preprocessor definitions for
+    # some reason. Octal-encode to work around that.
+    s = s.replace("#", "\\%03o" % ord("#"))
+    return s
+
+
+def _GenerateRulesForMSVS(
+    p, output_dir, options, spec, sources, excluded_sources, actions_to_add
+):
+    """Generate all the rules for a particular project.
+
+  Arguments:
+    p: the project
+    output_dir: directory to emit rules to
+    options: global options passed to the generator
+    spec: the specification for this project
+    sources: the set of all known source files in this project
+    excluded_sources: the set of sources excluded from normal processing
+    actions_to_add: deferred list of actions to add in
+  """
+    rules = spec.get("rules", [])
+    rules_native = [r for r in rules if not int(r.get("msvs_external_rule", 0))]
+    rules_external = [r for r in rules if int(r.get("msvs_external_rule", 0))]
+
+    # Handle rules that use a native rules file.
+    if rules_native:
+        _GenerateNativeRulesForMSVS(p, rules_native, output_dir, spec, options)
+
+    # Handle external rules (non-native rules).
+    if rules_external:
+        _GenerateExternalRules(
+            rules_external, output_dir, spec, sources, options, actions_to_add
+        )
+    _AdjustSourcesForRules(rules, sources, excluded_sources, False)
+
+
+def _AdjustSourcesForRules(rules, sources, excluded_sources, is_msbuild):
+    # Add outputs generated by each rule (if applicable).
+    for rule in rules:
+        # Add in the outputs from this rule.
+        trigger_files = _FindRuleTriggerFiles(rule, sources)
+        for trigger_file in trigger_files:
+            # Remove trigger_file from excluded_sources to let the rule be triggered
+            # (e.g. rule trigger ax_enums.idl is added to excluded_sources
+            # because it's also in an action's inputs in the same project)
+            excluded_sources.discard(_FixPath(trigger_file))
+            # Done if not processing outputs as sources.
+            if int(rule.get("process_outputs_as_sources", False)):
+                inputs, outputs = _RuleInputsAndOutputs(rule, trigger_file)
+                inputs = OrderedSet(_FixPaths(inputs))
+                outputs = OrderedSet(_FixPaths(outputs))
+                inputs.remove(_FixPath(trigger_file))
+                sources.update(inputs)
+                if not is_msbuild:
+                    excluded_sources.update(inputs)
+                sources.update(outputs)
+
+
+def _FilterActionsFromExcluded(excluded_sources, actions_to_add):
+    """Take inputs with actions attached out of the list of exclusions.
+
+  Arguments:
+    excluded_sources: list of source files not to be built.
+    actions_to_add: dict of actions keyed on source file they're attached to.
+  Returns:
+    excluded_sources with files that have actions attached removed.
+  """
+    must_keep = OrderedSet(_FixPaths(actions_to_add.keys()))
+    return [s for s in excluded_sources if s not in must_keep]
+
+
+def _GetDefaultConfiguration(spec):
+    return spec["configurations"][spec["default_configuration"]]
+
+
+def _GetGuidOfProject(proj_path, spec):
+    """Get the guid for the project.
+
+  Arguments:
+    proj_path: Path of the vcproj or vcxproj file to generate.
+    spec: The target dictionary containing the properties of the target.
+  Returns:
+    the guid.
+  Raises:
+    ValueError: if the specified GUID is invalid.
+  """
+    # Pluck out the default configuration.
+    default_config = _GetDefaultConfiguration(spec)
+    # Decide the guid of the project.
+    guid = default_config.get("msvs_guid")
+    if guid:
+        if VALID_MSVS_GUID_CHARS.match(guid) is None:
+            raise ValueError(
+                'Invalid MSVS guid: "%s".  Must match regex: "%s".'
+                % (guid, VALID_MSVS_GUID_CHARS.pattern)
+            )
+        guid = "{%s}" % guid
+    guid = guid or MSVSNew.MakeGuid(proj_path)
+    return guid
+
+
+def _GetMsbuildToolsetOfProject(proj_path, spec, version):
+    """Get the platform toolset for the project.
+
+  Arguments:
+    proj_path: Path of the vcproj or vcxproj file to generate.
+    spec: The target dictionary containing the properties of the target.
+    version: The MSVSVersion object.
+  Returns:
+    the platform toolset string or None.
+  """
+    # Pluck out the default configuration.
+    default_config = _GetDefaultConfiguration(spec)
+    toolset = default_config.get("msbuild_toolset")
+    if not toolset and version.DefaultToolset():
+        toolset = version.DefaultToolset()
+    if spec["type"] == "windows_driver":
+        toolset = "WindowsKernelModeDriver10.0"
+    return toolset
+
+
+def _GenerateProject(project, options, version, generator_flags, spec):
+    """Generates a vcproj file.
+
+  Arguments:
+    project: the MSVSProject object.
+    options: global generator options.
+    version: the MSVSVersion object.
+    generator_flags: dict of generator-specific flags.
+  Returns:
+    A list of source files that cannot be found on disk.
+  """
+    default_config = _GetDefaultConfiguration(project.spec)
+
+    # Skip emitting anything if told to with msvs_existing_vcproj option.
+    if default_config.get("msvs_existing_vcproj"):
+        return []
+
+    if version.UsesVcxproj():
+        return _GenerateMSBuildProject(project, options, version, generator_flags, spec)
+    else:
+        return _GenerateMSVSProject(project, options, version, generator_flags)
+
+
+def _GenerateMSVSProject(project, options, version, generator_flags):
+    """Generates a .vcproj file.  It may create .rules and .user files too.
+
+  Arguments:
+    project: The project object we will generate the file for.
+    options: Global options passed to the generator.
+    version: The VisualStudioVersion object.
+    generator_flags: dict of generator-specific flags.
+  """
+    spec = project.spec
+    gyp.common.EnsureDirExists(project.path)
+
+    platforms = _GetUniquePlatforms(spec)
+    p = MSVSProject.Writer(
+        project.path, version, spec["target_name"], project.guid, platforms
+    )
+
+    # Get directory project file is in.
+    project_dir = os.path.split(project.path)[0]
+    gyp_path = _NormalizedSource(project.build_file)
+    relative_path_of_gyp_file = gyp.common.RelativePath(gyp_path, project_dir)
+
+    config_type = _GetMSVSConfigurationType(spec, project.build_file)
+    for config_name, config in spec["configurations"].items():
+        _AddConfigurationToMSVSProject(p, spec, config_type, config_name, config)
+
+    # Prepare list of sources and excluded sources.
+    gyp_file = os.path.split(project.build_file)[1]
+    sources, excluded_sources = _PrepareListOfSources(spec, generator_flags, gyp_file)
+
+    # Add rules.
+    actions_to_add = {}
+    _GenerateRulesForMSVS(
+        p, project_dir, options, spec, sources, excluded_sources, actions_to_add
+    )
+    list_excluded = generator_flags.get("msvs_list_excluded_files", True)
+    sources, excluded_sources, excluded_idl = _AdjustSourcesAndConvertToFilterHierarchy(
+        spec, options, project_dir, sources, excluded_sources, list_excluded, version
+    )
+
+    # Add in files.
+    missing_sources = _VerifySourcesExist(sources, project_dir)
+    p.AddFiles(sources)
+
+    _AddToolFilesToMSVS(p, spec)
+    _HandlePreCompiledHeaders(p, sources, spec)
+    _AddActions(actions_to_add, spec, relative_path_of_gyp_file)
+    _AddCopies(actions_to_add, spec)
+    _WriteMSVSUserFile(project.path, version, spec)
+
+    # NOTE: this stanza must appear after all actions have been decided.
+    # Don't excluded sources with actions attached, or they won't run.
+    excluded_sources = _FilterActionsFromExcluded(excluded_sources, actions_to_add)
+    _ExcludeFilesFromBeingBuilt(p, spec, excluded_sources, excluded_idl, list_excluded)
+    _AddAccumulatedActionsToMSVS(p, spec, actions_to_add)
+
+    # Write it out.
+    p.WriteIfChanged()
+
+    return missing_sources
+
+
+def _GetUniquePlatforms(spec):
+    """Returns the list of unique platforms for this spec, e.g ['win32', ...].
+
+  Arguments:
+    spec: The target dictionary containing the properties of the target.
+  Returns:
+    The MSVSUserFile object created.
+  """
+    # Gather list of unique platforms.
+    platforms = OrderedSet()
+    for configuration in spec["configurations"]:
+        platforms.add(_ConfigPlatform(spec["configurations"][configuration]))
+    platforms = list(platforms)
+    return platforms
+
+
+def _CreateMSVSUserFile(proj_path, version, spec):
+    """Generates a .user file for the user running this Gyp program.
+
+  Arguments:
+    proj_path: The path of the project file being created.  The .user file
+               shares the same path (with an appropriate suffix).
+    version: The VisualStudioVersion object.
+    spec: The target dictionary containing the properties of the target.
+  Returns:
+    The MSVSUserFile object created.
+  """
+    (domain, username) = _GetDomainAndUserName()
+    vcuser_filename = ".".join([proj_path, domain, username, "user"])
+    user_file = MSVSUserFile.Writer(vcuser_filename, version, spec["target_name"])
+    return user_file
+
+
+def _GetMSVSConfigurationType(spec, build_file):
+    """Returns the configuration type for this project.
+
+  It's a number defined by Microsoft.  May raise an exception.
+
+  Args:
+      spec: The target dictionary containing the properties of the target.
+      build_file: The path of the gyp file.
+  Returns:
+      An integer, the configuration type.
+  """
+    try:
+        config_type = {
+            "executable": "1",  # .exe
+            "shared_library": "2",  # .dll
+            "loadable_module": "2",  # .dll
+            "static_library": "4",  # .lib
+            "windows_driver": "5",  # .sys
+            "none": "10",  # Utility type
+        }[spec["type"]]
+    except KeyError:
+        if spec.get("type"):
+            raise GypError(
+                "Target type %s is not a valid target type for "
+                "target %s in %s." % (spec["type"], spec["target_name"], build_file)
+            )
+        else:
+            raise GypError(
+                "Missing type field for target %s in %s."
+                % (spec["target_name"], build_file)
+            )
+    return config_type
+
+
+def _AddConfigurationToMSVSProject(p, spec, config_type, config_name, config):
+    """Adds a configuration to the MSVS project.
+
+  Many settings in a vcproj file are specific to a configuration.  This
+  function the main part of the vcproj file that's configuration specific.
+
+  Arguments:
+    p: The target project being generated.
+    spec: The target dictionary containing the properties of the target.
+    config_type: The configuration type, a number as defined by Microsoft.
+    config_name: The name of the configuration.
+    config: The dictionary that defines the special processing to be done
+            for this configuration.
+  """
+    # Get the information for this configuration
+    include_dirs, midl_include_dirs, resource_include_dirs = _GetIncludeDirs(config)
+    libraries = _GetLibraries(spec)
+    library_dirs = _GetLibraryDirs(config)
+    out_file, vc_tool, _ = _GetOutputFilePathAndTool(spec, msbuild=False)
+    defines = _GetDefines(config)
+    defines = [_EscapeCppDefineForMSVS(d) for d in defines]
+    disabled_warnings = _GetDisabledWarnings(config)
+    prebuild = config.get("msvs_prebuild")
+    postbuild = config.get("msvs_postbuild")
+    def_file = _GetModuleDefinition(spec)
+    precompiled_header = config.get("msvs_precompiled_header")
+
+    # Prepare the list of tools as a dictionary.
+    tools = dict()
+    # Add in user specified msvs_settings.
+    msvs_settings = config.get("msvs_settings", {})
+    MSVSSettings.ValidateMSVSSettings(msvs_settings)
+
+    # Prevent default library inheritance from the environment.
+    _ToolAppend(tools, "VCLinkerTool", "AdditionalDependencies", ["$(NOINHERIT)"])
+
+    for tool in msvs_settings:
+        settings = config["msvs_settings"][tool]
+        for setting in settings:
+            _ToolAppend(tools, tool, setting, settings[setting])
+    # Add the information to the appropriate tool
+    _ToolAppend(tools, "VCCLCompilerTool", "AdditionalIncludeDirectories", include_dirs)
+    _ToolAppend(tools, "VCMIDLTool", "AdditionalIncludeDirectories", midl_include_dirs)
+    _ToolAppend(
+        tools,
+        "VCResourceCompilerTool",
+        "AdditionalIncludeDirectories",
+        resource_include_dirs,
+    )
+    # Add in libraries.
+    _ToolAppend(tools, "VCLinkerTool", "AdditionalDependencies", libraries)
+    _ToolAppend(tools, "VCLinkerTool", "AdditionalLibraryDirectories", library_dirs)
+    if out_file:
+        _ToolAppend(tools, vc_tool, "OutputFile", out_file, only_if_unset=True)
+    # Add defines.
+    _ToolAppend(tools, "VCCLCompilerTool", "PreprocessorDefinitions", defines)
+    _ToolAppend(tools, "VCResourceCompilerTool", "PreprocessorDefinitions", defines)
+    # Change program database directory to prevent collisions.
+    _ToolAppend(
+        tools,
+        "VCCLCompilerTool",
+        "ProgramDataBaseFileName",
+        "$(IntDir)$(ProjectName)\\vc80.pdb",
+        only_if_unset=True,
+    )
+    # Add disabled warnings.
+    _ToolAppend(tools, "VCCLCompilerTool", "DisableSpecificWarnings", disabled_warnings)
+    # Add Pre-build.
+    _ToolAppend(tools, "VCPreBuildEventTool", "CommandLine", prebuild)
+    # Add Post-build.
+    _ToolAppend(tools, "VCPostBuildEventTool", "CommandLine", postbuild)
+    # Turn on precompiled headers if appropriate.
+    if precompiled_header:
+        precompiled_header = os.path.split(precompiled_header)[1]
+        _ToolAppend(tools, "VCCLCompilerTool", "UsePrecompiledHeader", "2")
+        _ToolAppend(
+            tools, "VCCLCompilerTool", "PrecompiledHeaderThrough", precompiled_header
+        )
+        _ToolAppend(tools, "VCCLCompilerTool", "ForcedIncludeFiles", precompiled_header)
+    # Loadable modules don't generate import libraries;
+    # tell dependent projects to not expect one.
+    if spec["type"] == "loadable_module":
+        _ToolAppend(tools, "VCLinkerTool", "IgnoreImportLibrary", "true")
+    # Set the module definition file if any.
+    if def_file:
+        _ToolAppend(tools, "VCLinkerTool", "ModuleDefinitionFile", def_file)
+
+    _AddConfigurationToMSVS(p, spec, tools, config, config_type, config_name)
+
+
+def _GetIncludeDirs(config):
+    """Returns the list of directories to be used for #include directives.
+
+  Arguments:
+    config: The dictionary that defines the special processing to be done
+            for this configuration.
+  Returns:
+    The list of directory paths.
+  """
+    # TODO(bradnelson): include_dirs should really be flexible enough not to
+    #                   require this sort of thing.
+    include_dirs = config.get("include_dirs", []) + config.get(
+        "msvs_system_include_dirs", []
+    )
+    midl_include_dirs = config.get("midl_include_dirs", []) + config.get(
+        "msvs_system_include_dirs", []
+    )
+    resource_include_dirs = config.get("resource_include_dirs", include_dirs)
+    include_dirs = _FixPaths(include_dirs)
+    midl_include_dirs = _FixPaths(midl_include_dirs)
+    resource_include_dirs = _FixPaths(resource_include_dirs)
+    return include_dirs, midl_include_dirs, resource_include_dirs
+
+
+def _GetLibraryDirs(config):
+    """Returns the list of directories to be used for library search paths.
+
+  Arguments:
+    config: The dictionary that defines the special processing to be done
+            for this configuration.
+  Returns:
+    The list of directory paths.
+  """
+
+    library_dirs = config.get("library_dirs", [])
+    library_dirs = _FixPaths(library_dirs)
+    return library_dirs
+
+
+def _GetLibraries(spec):
+    """Returns the list of libraries for this configuration.
+
+  Arguments:
+    spec: The target dictionary containing the properties of the target.
+  Returns:
+    The list of directory paths.
+  """
+    libraries = spec.get("libraries", [])
+    # Strip out -l, as it is not used on windows (but is needed so we can pass
+    # in libraries that are assumed to be in the default library path).
+    # Also remove duplicate entries, leaving only the last duplicate, while
+    # preserving order.
+    found = OrderedSet()
+    unique_libraries_list = []
+    for entry in reversed(libraries):
+        library = re.sub(r"^\-l", "", entry)
+        if not os.path.splitext(library)[1]:
+            library += ".lib"
+        if library not in found:
+            found.add(library)
+            unique_libraries_list.append(library)
+    unique_libraries_list.reverse()
+    return unique_libraries_list
+
+
+def _GetOutputFilePathAndTool(spec, msbuild):
+    """Returns the path and tool to use for this target.
+
+  Figures out the path of the file this spec will create and the name of
+  the VC tool that will create it.
+
+  Arguments:
+    spec: The target dictionary containing the properties of the target.
+  Returns:
+    A triple of (file path, name of the vc tool, name of the msbuild tool)
+  """
+    # Select a name for the output file.
+    out_file = ""
+    vc_tool = ""
+    msbuild_tool = ""
+    output_file_map = {
+        "executable": ("VCLinkerTool", "Link", "$(OutDir)", ".exe"),
+        "shared_library": ("VCLinkerTool", "Link", "$(OutDir)", ".dll"),
+        "loadable_module": ("VCLinkerTool", "Link", "$(OutDir)", ".dll"),
+        "windows_driver": ("VCLinkerTool", "Link", "$(OutDir)", ".sys"),
+        "static_library": ("VCLibrarianTool", "Lib", "$(OutDir)lib\\", ".lib"),
+    }
+    output_file_props = output_file_map.get(spec["type"])
+    if output_file_props and int(spec.get("msvs_auto_output_file", 1)):
+        vc_tool, msbuild_tool, out_dir, suffix = output_file_props
+        if spec.get("standalone_static_library", 0):
+            out_dir = "$(OutDir)"
+        out_dir = spec.get("product_dir", out_dir)
+        product_extension = spec.get("product_extension")
+        if product_extension:
+            suffix = "." + product_extension
+        elif msbuild:
+            suffix = "$(TargetExt)"
+        prefix = spec.get("product_prefix", "")
+        product_name = spec.get("product_name", "$(ProjectName)")
+        out_file = ntpath.join(out_dir, prefix + product_name + suffix)
+    return out_file, vc_tool, msbuild_tool
+
+
+def _GetOutputTargetExt(spec):
+    """Returns the extension for this target, including the dot
+
+  If product_extension is specified, set target_extension to this to avoid
+  MSB8012, returns None otherwise. Ignores any target_extension settings in
+  the input files.
+
+  Arguments:
+    spec: The target dictionary containing the properties of the target.
+  Returns:
+    A string with the extension, or None
+  """
+    target_extension = spec.get("product_extension")
+    if target_extension:
+        return "." + target_extension
+    return None
+
+
+def _GetDefines(config):
+    """Returns the list of preprocessor definitions for this configuration.
+
+  Arguments:
+    config: The dictionary that defines the special processing to be done
+            for this configuration.
+  Returns:
+    The list of preprocessor definitions.
+  """
+    defines = []
+    for d in config.get("defines", []):
+        if type(d) == list:
+            fd = "=".join([str(dpart) for dpart in d])
+        else:
+            fd = str(d)
+        defines.append(fd)
+    return defines
+
+
+def _GetDisabledWarnings(config):
+    return [str(i) for i in config.get("msvs_disabled_warnings", [])]
+
+
+def _GetModuleDefinition(spec):
+    def_file = ""
+    if spec["type"] in [
+        "shared_library",
+        "loadable_module",
+        "executable",
+        "windows_driver",
+    ]:
+        def_files = [s for s in spec.get("sources", []) if s.endswith(".def")]
+        if len(def_files) == 1:
+            def_file = _FixPath(def_files[0])
+        elif def_files:
+            raise ValueError(
+                "Multiple module definition files in one target, target %s lists "
+                "multiple .def files: %s" % (spec["target_name"], " ".join(def_files))
+            )
+    return def_file
+
+
+def _ConvertToolsToExpectedForm(tools):
+    """Convert tools to a form expected by Visual Studio.
+
+  Arguments:
+    tools: A dictionary of settings; the tool name is the key.
+  Returns:
+    A list of Tool objects.
+  """
+    tool_list = []
+    for tool, settings in tools.items():
+        # Collapse settings with lists.
+        settings_fixed = {}
+        for setting, value in settings.items():
+            if type(value) == list:
+                if (
+                    tool == "VCLinkerTool" and setting == "AdditionalDependencies"
+                ) or setting == "AdditionalOptions":
+                    settings_fixed[setting] = " ".join(value)
+                else:
+                    settings_fixed[setting] = ";".join(value)
+            else:
+                settings_fixed[setting] = value
+        # Add in this tool.
+        tool_list.append(MSVSProject.Tool(tool, settings_fixed))
+    return tool_list
+
+
+def _AddConfigurationToMSVS(p, spec, tools, config, config_type, config_name):
+    """Add to the project file the configuration specified by config.
+
+  Arguments:
+    p: The target project being generated.
+    spec: the target project dict.
+    tools: A dictionary of settings; the tool name is the key.
+    config: The dictionary that defines the special processing to be done
+            for this configuration.
+    config_type: The configuration type, a number as defined by Microsoft.
+    config_name: The name of the configuration.
+  """
+    attributes = _GetMSVSAttributes(spec, config, config_type)
+    # Add in this configuration.
+    tool_list = _ConvertToolsToExpectedForm(tools)
+    p.AddConfig(_ConfigFullName(config_name, config), attrs=attributes, tools=tool_list)
+
+
+def _GetMSVSAttributes(spec, config, config_type):
+    # Prepare configuration attributes.
+    prepared_attrs = {}
+    source_attrs = config.get("msvs_configuration_attributes", {})
+    for a in source_attrs:
+        prepared_attrs[a] = source_attrs[a]
+    # Add props files.
+    vsprops_dirs = config.get("msvs_props", [])
+    vsprops_dirs = _FixPaths(vsprops_dirs)
+    if vsprops_dirs:
+        prepared_attrs["InheritedPropertySheets"] = ";".join(vsprops_dirs)
+    # Set configuration type.
+    prepared_attrs["ConfigurationType"] = config_type
+    output_dir = prepared_attrs.get(
+        "OutputDirectory", "$(SolutionDir)$(ConfigurationName)"
+    )
+    prepared_attrs["OutputDirectory"] = _FixPath(output_dir) + "\\"
+    if "IntermediateDirectory" not in prepared_attrs:
+        intermediate = "$(ConfigurationName)\\obj\\$(ProjectName)"
+        prepared_attrs["IntermediateDirectory"] = _FixPath(intermediate) + "\\"
+    else:
+        intermediate = _FixPath(prepared_attrs["IntermediateDirectory"]) + "\\"
+        intermediate = MSVSSettings.FixVCMacroSlashes(intermediate)
+        prepared_attrs["IntermediateDirectory"] = intermediate
+    return prepared_attrs
+
+
+def _AddNormalizedSources(sources_set, sources_array):
+    sources_set.update(_NormalizedSource(s) for s in sources_array)
+
+
+def _PrepareListOfSources(spec, generator_flags, gyp_file):
+    """Prepare list of sources and excluded sources.
+
+  Besides the sources specified directly in the spec, adds the gyp file so
+  that a change to it will cause a re-compile. Also adds appropriate sources
+  for actions and copies. Assumes later stage will un-exclude files which
+  have custom build steps attached.
+
+  Arguments:
+    spec: The target dictionary containing the properties of the target.
+    gyp_file: The name of the gyp file.
+  Returns:
+    A pair of (list of sources, list of excluded sources).
+    The sources will be relative to the gyp file.
+  """
+    sources = OrderedSet()
+    _AddNormalizedSources(sources, spec.get("sources", []))
+    excluded_sources = OrderedSet()
+    # Add in the gyp file.
+    if not generator_flags.get("standalone"):
+        sources.add(gyp_file)
+
+    # Add in 'action' inputs and outputs.
+    for a in spec.get("actions", []):
+        inputs = a["inputs"]
+        inputs = [_NormalizedSource(i) for i in inputs]
+        # Add all inputs to sources and excluded sources.
+        inputs = OrderedSet(inputs)
+        sources.update(inputs)
+        if not spec.get("msvs_external_builder"):
+            excluded_sources.update(inputs)
+        if int(a.get("process_outputs_as_sources", False)):
+            _AddNormalizedSources(sources, a.get("outputs", []))
+    # Add in 'copies' inputs and outputs.
+    for cpy in spec.get("copies", []):
+        _AddNormalizedSources(sources, cpy.get("files", []))
+    return (sources, excluded_sources)
+
+
+def _AdjustSourcesAndConvertToFilterHierarchy(
+    spec, options, gyp_dir, sources, excluded_sources, list_excluded, version
+):
+    """Adjusts the list of sources and excluded sources.
+
+  Also converts the sets to lists.
+
+  Arguments:
+    spec: The target dictionary containing the properties of the target.
+    options: Global generator options.
+    gyp_dir: The path to the gyp file being processed.
+    sources: A set of sources to be included for this project.
+    excluded_sources: A set of sources to be excluded for this project.
+    version: A MSVSVersion object.
+  Returns:
+    A trio of (list of sources, list of excluded sources,
+               path of excluded IDL file)
+  """
+    # Exclude excluded sources coming into the generator.
+    excluded_sources.update(OrderedSet(spec.get("sources_excluded", [])))
+    # Add excluded sources into sources for good measure.
+    sources.update(excluded_sources)
+    # Convert to proper windows form.
+    # NOTE: sources goes from being a set to a list here.
+    # NOTE: excluded_sources goes from being a set to a list here.
+    sources = _FixPaths(sources)
+    # Convert to proper windows form.
+    excluded_sources = _FixPaths(excluded_sources)
+
+    excluded_idl = _IdlFilesHandledNonNatively(spec, sources)
+
+    precompiled_related = _GetPrecompileRelatedFiles(spec)
+    # Find the excluded ones, minus the precompiled header related ones.
+    fully_excluded = [i for i in excluded_sources if i not in precompiled_related]
+
+    # Convert to folders and the right slashes.
+    sources = [i.split("\\") for i in sources]
+    sources = _ConvertSourcesToFilterHierarchy(
+        sources,
+        excluded=fully_excluded,
+        list_excluded=list_excluded,
+        msvs_version=version,
+    )
+
+    # Prune filters with a single child to flatten ugly directory structures
+    # such as ../../src/modules/module1 etc.
+    if version.UsesVcxproj():
+        while (
+            all([isinstance(s, MSVSProject.Filter) for s in sources])
+            and len({s.name for s in sources}) == 1
+        ):
+            assert all([len(s.contents) == 1 for s in sources])
+            sources = [s.contents[0] for s in sources]
+    else:
+        while len(sources) == 1 and isinstance(sources[0], MSVSProject.Filter):
+            sources = sources[0].contents
+
+    return sources, excluded_sources, excluded_idl
+
+
+def _IdlFilesHandledNonNatively(spec, sources):
+    # If any non-native rules use 'idl' as an extension exclude idl files.
+    # Gather a list here to use later.
+    using_idl = False
+    for rule in spec.get("rules", []):
+        if rule["extension"] == "idl" and int(rule.get("msvs_external_rule", 0)):
+            using_idl = True
+            break
+    if using_idl:
+        excluded_idl = [i for i in sources if i.endswith(".idl")]
+    else:
+        excluded_idl = []
+    return excluded_idl
+
+
+def _GetPrecompileRelatedFiles(spec):
+    # Gather a list of precompiled header related sources.
+    precompiled_related = []
+    for _, config in spec["configurations"].items():
+        for k in precomp_keys:
+            f = config.get(k)
+            if f:
+                precompiled_related.append(_FixPath(f))
+    return precompiled_related
+
+
+def _ExcludeFilesFromBeingBuilt(p, spec, excluded_sources, excluded_idl, list_excluded):
+    exclusions = _GetExcludedFilesFromBuild(spec, excluded_sources, excluded_idl)
+    for file_name, excluded_configs in exclusions.items():
+        if not list_excluded and len(excluded_configs) == len(spec["configurations"]):
+            # If we're not listing excluded files, then they won't appear in the
+            # project, so don't try to configure them to be excluded.
+            pass
+        else:
+            for config_name, config in excluded_configs:
+                p.AddFileConfig(
+                    file_name,
+                    _ConfigFullName(config_name, config),
+                    {"ExcludedFromBuild": "true"},
+                )
+
+
+def _GetExcludedFilesFromBuild(spec, excluded_sources, excluded_idl):
+    exclusions = {}
+    # Exclude excluded sources from being built.
+    for f in excluded_sources:
+        excluded_configs = []
+        for config_name, config in spec["configurations"].items():
+            precomped = [_FixPath(config.get(i, "")) for i in precomp_keys]
+            # Don't do this for ones that are precompiled header related.
+            if f not in precomped:
+                excluded_configs.append((config_name, config))
+        exclusions[f] = excluded_configs
+    # If any non-native rules use 'idl' as an extension exclude idl files.
+    # Exclude them now.
+    for f in excluded_idl:
+        excluded_configs = []
+        for config_name, config in spec["configurations"].items():
+            excluded_configs.append((config_name, config))
+        exclusions[f] = excluded_configs
+    return exclusions
+
+
+def _AddToolFilesToMSVS(p, spec):
+    # Add in tool files (rules).
+    tool_files = OrderedSet()
+    for _, config in spec["configurations"].items():
+        for f in config.get("msvs_tool_files", []):
+            tool_files.add(f)
+    for f in tool_files:
+        p.AddToolFile(f)
+
+
+def _HandlePreCompiledHeaders(p, sources, spec):
+    # Pre-compiled header source stubs need a different compiler flag
+    # (generate precompiled header) and any source file not of the same
+    # kind (i.e. C vs. C++) as the precompiled header source stub needs
+    # to have use of precompiled headers disabled.
+    extensions_excluded_from_precompile = []
+    for config_name, config in spec["configurations"].items():
+        source = config.get("msvs_precompiled_source")
+        if source:
+            source = _FixPath(source)
+            # UsePrecompiledHeader=1 for if using precompiled headers.
+            tool = MSVSProject.Tool("VCCLCompilerTool", {"UsePrecompiledHeader": "1"})
+            p.AddFileConfig(
+                source, _ConfigFullName(config_name, config), {}, tools=[tool]
+            )
+            basename, extension = os.path.splitext(source)
+            if extension == ".c":
+                extensions_excluded_from_precompile = [".cc", ".cpp", ".cxx"]
+            else:
+                extensions_excluded_from_precompile = [".c"]
+
+    def DisableForSourceTree(source_tree):
+        for source in source_tree:
+            if isinstance(source, MSVSProject.Filter):
+                DisableForSourceTree(source.contents)
+            else:
+                basename, extension = os.path.splitext(source)
+                if extension in extensions_excluded_from_precompile:
+                    for config_name, config in spec["configurations"].items():
+                        tool = MSVSProject.Tool(
+                            "VCCLCompilerTool",
+                            {
+                                "UsePrecompiledHeader": "0",
+                                "ForcedIncludeFiles": "$(NOINHERIT)",
+                            },
+                        )
+                        p.AddFileConfig(
+                            _FixPath(source),
+                            _ConfigFullName(config_name, config),
+                            {},
+                            tools=[tool],
+                        )
+
+    # Do nothing if there was no precompiled source.
+    if extensions_excluded_from_precompile:
+        DisableForSourceTree(sources)
+
+
+def _AddActions(actions_to_add, spec, relative_path_of_gyp_file):
+    # Add actions.
+    actions = spec.get("actions", [])
+    # Don't setup_env every time. When all the actions are run together in one
+    # batch file in VS, the PATH will grow too long.
+    # Membership in this set means that the cygwin environment has been set up,
+    # and does not need to be set up again.
+    have_setup_env = set()
+    for a in actions:
+        # Attach actions to the gyp file if nothing else is there.
+        inputs = a.get("inputs") or [relative_path_of_gyp_file]
+        attached_to = inputs[0]
+        need_setup_env = attached_to not in have_setup_env
+        cmd = _BuildCommandLineForRule(
+            spec, a, has_input_path=False, do_setup_env=need_setup_env
+        )
+        have_setup_env.add(attached_to)
+        # Add the action.
+        _AddActionStep(
+            actions_to_add,
+            inputs=inputs,
+            outputs=a.get("outputs", []),
+            description=a.get("message", a["action_name"]),
+            command=cmd,
+        )
+
+
+def _WriteMSVSUserFile(project_path, version, spec):
+    # Add run_as and test targets.
+    if "run_as" in spec:
+        run_as = spec["run_as"]
+        action = run_as.get("action", [])
+        environment = run_as.get("environment", [])
+        working_directory = run_as.get("working_directory", ".")
+    elif int(spec.get("test", 0)):
+        action = ["$(TargetPath)", "--gtest_print_time"]
+        environment = []
+        working_directory = "."
+    else:
+        return  # Nothing to add
+    # Write out the user file.
+    user_file = _CreateMSVSUserFile(project_path, version, spec)
+    for config_name, c_data in spec["configurations"].items():
+        user_file.AddDebugSettings(
+            _ConfigFullName(config_name, c_data), action, environment, working_directory
+        )
+    user_file.WriteIfChanged()
+
+
+def _AddCopies(actions_to_add, spec):
+    copies = _GetCopies(spec)
+    for inputs, outputs, cmd, description in copies:
+        _AddActionStep(
+            actions_to_add,
+            inputs=inputs,
+            outputs=outputs,
+            description=description,
+            command=cmd,
+        )
+
+
+def _GetCopies(spec):
+    copies = []
+    # Add copies.
+    for cpy in spec.get("copies", []):
+        for src in cpy.get("files", []):
+            dst = os.path.join(cpy["destination"], os.path.basename(src))
+            # _AddCustomBuildToolForMSVS() will call _FixPath() on the inputs and
+            # outputs, so do the same for our generated command line.
+            if src.endswith("/"):
+                src_bare = src[:-1]
+                base_dir = posixpath.split(src_bare)[0]
+                outer_dir = posixpath.split(src_bare)[1]
+                fixed_dst = _FixPath(dst)
+                full_dst = f'"{fixed_dst}\\{outer_dir}\\"'
+                cmd = 'mkdir {} 2>nul & cd "{}" && xcopy /e /f /y "{}" {}'.format(
+                    full_dst,
+                    _FixPath(base_dir),
+                    outer_dir,
+                    full_dst,
+                )
+                copies.append(
+                    (
+                        [src],
+                        ["dummy_copies", dst],
+                        cmd,
+                        f"Copying {src} to {fixed_dst}",
+                    )
+                )
+            else:
+                fix_dst = _FixPath(cpy["destination"])
+                cmd = 'mkdir "{}" 2>nul & set ERRORLEVEL=0 & copy /Y "{}" "{}"'.format(
+                    fix_dst,
+                    _FixPath(src),
+                    _FixPath(dst),
+                )
+                copies.append(([src], [dst], cmd, f"Copying {src} to {fix_dst}"))
+    return copies
+
+
+def _GetPathDict(root, path):
+    # |path| will eventually be empty (in the recursive calls) if it was initially
+    # relative; otherwise it will eventually end up as '\', 'D:\', etc.
+    if not path or path.endswith(os.sep):
+        return root
+    parent, folder = os.path.split(path)
+    parent_dict = _GetPathDict(root, parent)
+    if folder not in parent_dict:
+        parent_dict[folder] = dict()
+    return parent_dict[folder]
+
+
+def _DictsToFolders(base_path, bucket, flat):
+    # Convert to folders recursively.
+    children = []
+    for folder, contents in bucket.items():
+        if type(contents) == dict:
+            folder_children = _DictsToFolders(
+                os.path.join(base_path, folder), contents, flat
+            )
+            if flat:
+                children += folder_children
+            else:
+                folder_children = MSVSNew.MSVSFolder(
+                    os.path.join(base_path, folder),
+                    name="(" + folder + ")",
+                    entries=folder_children,
+                )
+                children.append(folder_children)
+        else:
+            children.append(contents)
+    return children
+
+
+def _CollapseSingles(parent, node):
+    # Recursively explorer the tree of dicts looking for projects which are
+    # the sole item in a folder which has the same name as the project. Bring
+    # such projects up one level.
+    if type(node) == dict and len(node) == 1 and next(iter(node)) == parent + ".vcproj":
+        return node[next(iter(node))]
+    if type(node) != dict:
+        return node
+    for child in node:
+        node[child] = _CollapseSingles(child, node[child])
+    return node
+
+
+def _GatherSolutionFolders(sln_projects, project_objects, flat):
+    root = {}
+    # Convert into a tree of dicts on path.
+    for p in sln_projects:
+        gyp_file, target = gyp.common.ParseQualifiedTarget(p)[0:2]
+        if p.endswith("#host"):
+            target += "_host"
+        gyp_dir = os.path.dirname(gyp_file)
+        path_dict = _GetPathDict(root, gyp_dir)
+        path_dict[target + ".vcproj"] = project_objects[p]
+    # Walk down from the top until we hit a folder that has more than one entry.
+    # In practice, this strips the top-level "src/" dir from the hierarchy in
+    # the solution.
+    while len(root) == 1 and type(root[next(iter(root))]) == dict:
+        root = root[next(iter(root))]
+    # Collapse singles.
+    root = _CollapseSingles("", root)
+    # Merge buckets until everything is a root entry.
+    return _DictsToFolders("", root, flat)
+
+
+def _GetPathOfProject(qualified_target, spec, options, msvs_version):
+    default_config = _GetDefaultConfiguration(spec)
+    proj_filename = default_config.get("msvs_existing_vcproj")
+    if not proj_filename:
+        proj_filename = spec["target_name"]
+        if spec["toolset"] == "host":
+            proj_filename += "_host"
+        proj_filename = proj_filename + options.suffix + msvs_version.ProjectExtension()
+
+    build_file = gyp.common.BuildFile(qualified_target)
+    proj_path = os.path.join(os.path.dirname(build_file), proj_filename)
+    fix_prefix = None
+    if options.generator_output:
+        project_dir_path = os.path.dirname(os.path.abspath(proj_path))
+        proj_path = os.path.join(options.generator_output, proj_path)
+        fix_prefix = gyp.common.RelativePath(
+            project_dir_path, os.path.dirname(proj_path)
+        )
+    return proj_path, fix_prefix
+
+
+def _GetPlatformOverridesOfProject(spec):
+    # Prepare a dict indicating which project configurations are used for which
+    # solution configurations for this target.
+    config_platform_overrides = {}
+    for config_name, c in spec["configurations"].items():
+        config_fullname = _ConfigFullName(config_name, c)
+        platform = c.get("msvs_target_platform", _ConfigPlatform(c))
+        fixed_config_fullname = "{}|{}".format(
+            _ConfigBaseName(config_name, _ConfigPlatform(c)),
+            platform,
+        )
+        if spec["toolset"] == "host" and generator_supports_multiple_toolsets:
+            fixed_config_fullname = f"{config_name}|x64"
+        config_platform_overrides[config_fullname] = fixed_config_fullname
+    return config_platform_overrides
+
+
+def _CreateProjectObjects(target_list, target_dicts, options, msvs_version):
+    """Create a MSVSProject object for the targets found in target list.
+
+  Arguments:
+    target_list: the list of targets to generate project objects for.
+    target_dicts: the dictionary of specifications.
+    options: global generator options.
+    msvs_version: the MSVSVersion object.
+  Returns:
+    A set of created projects, keyed by target.
+  """
+    global fixpath_prefix
+    # Generate each project.
+    projects = {}
+    for qualified_target in target_list:
+        spec = target_dicts[qualified_target]
+        proj_path, fixpath_prefix = _GetPathOfProject(
+            qualified_target, spec, options, msvs_version
+        )
+        guid = _GetGuidOfProject(proj_path, spec)
+        overrides = _GetPlatformOverridesOfProject(spec)
+        build_file = gyp.common.BuildFile(qualified_target)
+        # Create object for this project.
+        target_name = spec["target_name"]
+        if spec["toolset"] == "host":
+            target_name += "_host"
+        obj = MSVSNew.MSVSProject(
+            proj_path,
+            name=target_name,
+            guid=guid,
+            spec=spec,
+            build_file=build_file,
+            config_platform_overrides=overrides,
+            fixpath_prefix=fixpath_prefix,
+        )
+        # Set project toolset if any (MS build only)
+        if msvs_version.UsesVcxproj():
+            obj.set_msbuild_toolset(
+                _GetMsbuildToolsetOfProject(proj_path, spec, msvs_version)
+            )
+        projects[qualified_target] = obj
+    # Set all the dependencies, but not if we are using an external builder like
+    # ninja
+    for project in projects.values():
+        if not project.spec.get("msvs_external_builder"):
+            deps = project.spec.get("dependencies", [])
+            deps = [projects[d] for d in deps]
+            project.set_dependencies(deps)
+    return projects
+
+
+def _InitNinjaFlavor(params, target_list, target_dicts):
+    """Initialize targets for the ninja flavor.
+
+  This sets up the necessary variables in the targets to generate msvs projects
+  that use ninja as an external builder. The variables in the spec are only set
+  if they have not been set. This allows individual specs to override the
+  default values initialized here.
+  Arguments:
+    params: Params provided to the generator.
+    target_list: List of target pairs: 'base/base.gyp:base'.
+    target_dicts: Dict of target properties keyed on target pair.
+  """
+    for qualified_target in target_list:
+        spec = target_dicts[qualified_target]
+        if spec.get("msvs_external_builder"):
+            # The spec explicitly defined an external builder, so don't change it.
+            continue
+
+        path_to_ninja = spec.get("msvs_path_to_ninja", "ninja.exe")
+
+        spec["msvs_external_builder"] = "ninja"
+        if not spec.get("msvs_external_builder_out_dir"):
+            gyp_file, _, _ = gyp.common.ParseQualifiedTarget(qualified_target)
+            gyp_dir = os.path.dirname(gyp_file)
+            configuration = "$(Configuration)"
+            if params.get("target_arch") == "x64":
+                configuration += "_x64"
+            if params.get("target_arch") == "arm64":
+                configuration += "_arm64"
+            spec["msvs_external_builder_out_dir"] = os.path.join(
+                gyp.common.RelativePath(params["options"].toplevel_dir, gyp_dir),
+                ninja_generator.ComputeOutputDir(params),
+                configuration,
+            )
+        if not spec.get("msvs_external_builder_build_cmd"):
+            spec["msvs_external_builder_build_cmd"] = [
+                path_to_ninja,
+                "-C",
+                "$(OutDir)",
+                "$(ProjectName)",
+            ]
+        if not spec.get("msvs_external_builder_clean_cmd"):
+            spec["msvs_external_builder_clean_cmd"] = [
+                path_to_ninja,
+                "-C",
+                "$(OutDir)",
+                "-tclean",
+                "$(ProjectName)",
+            ]
+
+
+def CalculateVariables(default_variables, params):
+    """Generated variables that require params to be known."""
+
+    generator_flags = params.get("generator_flags", {})
+
+    # Select project file format version (if unset, default to auto detecting).
+    msvs_version = MSVSVersion.SelectVisualStudioVersion(
+        generator_flags.get("msvs_version", "auto")
+    )
+    # Stash msvs_version for later (so we don't have to probe the system twice).
+    params["msvs_version"] = msvs_version
+
+    # Set a variable so conditions can be based on msvs_version.
+    default_variables["MSVS_VERSION"] = msvs_version.ShortName()
+
+    # To determine processor word size on Windows, in addition to checking
+    # PROCESSOR_ARCHITECTURE (which reflects the word size of the current
+    # process), it is also necessary to check PROCESSOR_ARCITEW6432 (which
+    # contains the actual word size of the system when running thru WOW64).
+    if (
+        os.environ.get("PROCESSOR_ARCHITECTURE", "").find("64") >= 0
+        or os.environ.get("PROCESSOR_ARCHITEW6432", "").find("64") >= 0
+    ):
+        default_variables["MSVS_OS_BITS"] = 64
+    else:
+        default_variables["MSVS_OS_BITS"] = 32
+
+    if gyp.common.GetFlavor(params) == "ninja":
+        default_variables["SHARED_INTERMEDIATE_DIR"] = "$(OutDir)gen"
+
+
+def PerformBuild(data, configurations, params):
+    options = params["options"]
+    msvs_version = params["msvs_version"]
+    devenv = os.path.join(msvs_version.path, "Common7", "IDE", "devenv.com")
+
+    for build_file, build_file_dict in data.items():
+        (build_file_root, build_file_ext) = os.path.splitext(build_file)
+        if build_file_ext != ".gyp":
+            continue
+        sln_path = build_file_root + options.suffix + ".sln"
+        if options.generator_output:
+            sln_path = os.path.join(options.generator_output, sln_path)
+
+    for config in configurations:
+        arguments = [devenv, sln_path, "/Build", config]
+        print(f"Building [{config}]: {arguments}")
+        subprocess.check_call(arguments)
+
+
+def CalculateGeneratorInputInfo(params):
+    if params.get("flavor") == "ninja":
+        toplevel = params["options"].toplevel_dir
+        qualified_out_dir = os.path.normpath(
+            os.path.join(
+                toplevel,
+                ninja_generator.ComputeOutputDir(params),
+                "gypfiles-msvs-ninja",
+            )
+        )
+
+        global generator_filelist_paths
+        generator_filelist_paths = {
+            "toplevel": toplevel,
+            "qualified_out_dir": qualified_out_dir,
+        }
+
+
+def GenerateOutput(target_list, target_dicts, data, params):
+    """Generate .sln and .vcproj files.
+
+  This is the entry point for this generator.
+  Arguments:
+    target_list: List of target pairs: 'base/base.gyp:base'.
+    target_dicts: Dict of target properties keyed on target pair.
+    data: Dictionary containing per .gyp data.
+  """
+    global fixpath_prefix
+
+    options = params["options"]
+
+    # Get the project file format version back out of where we stashed it in
+    # GeneratorCalculatedVariables.
+    msvs_version = params["msvs_version"]
+
+    generator_flags = params.get("generator_flags", {})
+
+    # Optionally shard targets marked with 'msvs_shard': SHARD_COUNT.
+    (target_list, target_dicts) = MSVSUtil.ShardTargets(target_list, target_dicts)
+
+    # Optionally use the large PDB workaround for targets marked with
+    # 'msvs_large_pdb': 1.
+    (target_list, target_dicts) = MSVSUtil.InsertLargePdbShims(
+        target_list, target_dicts, generator_default_variables
+    )
+
+    # Optionally configure each spec to use ninja as the external builder.
+    if params.get("flavor") == "ninja":
+        _InitNinjaFlavor(params, target_list, target_dicts)
+
+    # Prepare the set of configurations.
+    configs = set()
+    for qualified_target in target_list:
+        spec = target_dicts[qualified_target]
+        for config_name, config in spec["configurations"].items():
+            config_name = _ConfigFullName(config_name, config)
+            configs.add(config_name)
+            if config_name == "Release|arm64":
+                configs.add("Release|x64")
+    configs = list(configs)
+
+    # Figure out all the projects that will be generated and their guids
+    project_objects = _CreateProjectObjects(
+        target_list, target_dicts, options, msvs_version
+    )
+
+    # Generate each project.
+    missing_sources = []
+    for project in project_objects.values():
+        fixpath_prefix = project.fixpath_prefix
+        missing_sources.extend(
+            _GenerateProject(project, options, msvs_version, generator_flags, spec)
+        )
+    fixpath_prefix = None
+
+    for build_file in data:
+        # Validate build_file extension
+        target_only_configs = configs
+        if generator_supports_multiple_toolsets:
+            target_only_configs = [i for i in configs if i.endswith("arm64")]
+        if not build_file.endswith(".gyp"):
+            continue
+        sln_path = os.path.splitext(build_file)[0] + options.suffix + ".sln"
+        if options.generator_output:
+            sln_path = os.path.join(options.generator_output, sln_path)
+        # Get projects in the solution, and their dependents.
+        sln_projects = gyp.common.BuildFileTargets(target_list, build_file)
+        sln_projects += gyp.common.DeepDependencyTargets(target_dicts, sln_projects)
+        # Create folder hierarchy.
+        root_entries = _GatherSolutionFolders(
+            sln_projects, project_objects, flat=msvs_version.FlatSolution()
+        )
+        # Create solution.
+        sln = MSVSNew.MSVSSolution(
+            sln_path,
+            entries=root_entries,
+            variants=target_only_configs,
+            websiteProperties=False,
+            version=msvs_version,
+        )
+        sln.Write()
+
+    if missing_sources:
+        error_message = "Missing input files:\n" + "\n".join(set(missing_sources))
+        if generator_flags.get("msvs_error_on_missing_sources", False):
+            raise GypError(error_message)
+        else:
+            print("Warning: " + error_message, file=sys.stdout)
+
+
+def _GenerateMSBuildFiltersFile(
+    filters_path,
+    source_files,
+    rule_dependencies,
+    extension_to_rule_name,
+    platforms,
+    toolset,
+):
+    """Generate the filters file.
+
+  This file is used by Visual Studio to organize the presentation of source
+  files into folders.
+
+  Arguments:
+      filters_path: The path of the file to be created.
+      source_files: The hierarchical structure of all the sources.
+      extension_to_rule_name: A dictionary mapping file extensions to rules.
+  """
+    filter_group = []
+    source_group = []
+    _AppendFiltersForMSBuild(
+        "",
+        source_files,
+        rule_dependencies,
+        extension_to_rule_name,
+        platforms,
+        toolset,
+        filter_group,
+        source_group,
+    )
+    if filter_group:
+        content = [
+            "Project",
+            {
+                "ToolsVersion": "4.0",
+                "xmlns": "http://schemas.microsoft.com/developer/msbuild/2003",
+            },
+            ["ItemGroup"] + filter_group,
+            ["ItemGroup"] + source_group,
+        ]
+        easy_xml.WriteXmlIfChanged(content, filters_path, pretty=True, win32=True)
+    elif os.path.exists(filters_path):
+        # We don't need this filter anymore.  Delete the old filter file.
+        os.unlink(filters_path)
+
+
+def _AppendFiltersForMSBuild(
+    parent_filter_name,
+    sources,
+    rule_dependencies,
+    extension_to_rule_name,
+    platforms,
+    toolset,
+    filter_group,
+    source_group,
+):
+    """Creates the list of filters and sources to be added in the filter file.
+
+  Args:
+      parent_filter_name: The name of the filter under which the sources are
+          found.
+      sources: The hierarchy of filters and sources to process.
+      extension_to_rule_name: A dictionary mapping file extensions to rules.
+      filter_group: The list to which filter entries will be appended.
+      source_group: The list to which source entries will be appended.
+  """
+    for source in sources:
+        if isinstance(source, MSVSProject.Filter):
+            # We have a sub-filter.  Create the name of that sub-filter.
+            if not parent_filter_name:
+                filter_name = source.name
+            else:
+                filter_name = f"{parent_filter_name}\\{source.name}"
+            # Add the filter to the group.
+            filter_group.append(
+                [
+                    "Filter",
+                    {"Include": filter_name},
+                    ["UniqueIdentifier", MSVSNew.MakeGuid(source.name)],
+                ]
+            )
+            # Recurse and add its dependents.
+            _AppendFiltersForMSBuild(
+                filter_name,
+                source.contents,
+                rule_dependencies,
+                extension_to_rule_name,
+                platforms,
+                toolset,
+                filter_group,
+                source_group,
+            )
+        else:
+            # It's a source.  Create a source entry.
+            _, element = _MapFileToMsBuildSourceType(
+                source, rule_dependencies, extension_to_rule_name, platforms, toolset
+            )
+            source_entry = [element, {"Include": source}]
+            # Specify the filter it is part of, if any.
+            if parent_filter_name:
+                source_entry.append(["Filter", parent_filter_name])
+            source_group.append(source_entry)
+
+
+def _MapFileToMsBuildSourceType(
+    source, rule_dependencies, extension_to_rule_name, platforms, toolset
+):
+    """Returns the group and element type of the source file.
+
+  Arguments:
+      source: The source file name.
+      extension_to_rule_name: A dictionary mapping file extensions to rules.
+
+  Returns:
+      A pair of (group this file should be part of, the label of element)
+  """
+    _, ext = os.path.splitext(source)
+    ext = ext.lower()
+    if ext in extension_to_rule_name:
+        group = "rule"
+        element = extension_to_rule_name[ext]
+    elif ext in [".cc", ".cpp", ".c", ".cxx", ".mm"]:
+        group = "compile"
+        element = "ClCompile"
+    elif ext in [".h", ".hxx"]:
+        group = "include"
+        element = "ClInclude"
+    elif ext == ".rc":
+        group = "resource"
+        element = "ResourceCompile"
+    elif ext in [".s", ".asm"]:
+        group = "masm"
+        element = "MASM"
+        if "arm64" in platforms and toolset == "target":
+            element = "MARMASM"
+    elif ext == ".idl":
+        group = "midl"
+        element = "Midl"
+    elif source in rule_dependencies:
+        group = "rule_dependency"
+        element = "CustomBuild"
+    else:
+        group = "none"
+        element = "None"
+    return (group, element)
+
+
+def _GenerateRulesForMSBuild(
+    output_dir,
+    options,
+    spec,
+    sources,
+    excluded_sources,
+    props_files_of_rules,
+    targets_files_of_rules,
+    actions_to_add,
+    rule_dependencies,
+    extension_to_rule_name,
+):
+    # MSBuild rules are implemented using three files: an XML file, a .targets
+    # file and a .props file.
+    # For more details see:
+    # https://devblogs.microsoft.com/cppblog/quick-help-on-vs2010-custom-build-rule/
+    rules = spec.get("rules", [])
+    rules_native = [r for r in rules if not int(r.get("msvs_external_rule", 0))]
+    rules_external = [r for r in rules if int(r.get("msvs_external_rule", 0))]
+
+    msbuild_rules = []
+    for rule in rules_native:
+        # Skip a rule with no action and no inputs.
+        if "action" not in rule and not rule.get("rule_sources", []):
+            continue
+        msbuild_rule = MSBuildRule(rule, spec)
+        msbuild_rules.append(msbuild_rule)
+        rule_dependencies.update(msbuild_rule.additional_dependencies.split(";"))
+        extension_to_rule_name[msbuild_rule.extension] = msbuild_rule.rule_name
+    if msbuild_rules:
+        base = spec["target_name"] + options.suffix
+        props_name = base + ".props"
+        targets_name = base + ".targets"
+        xml_name = base + ".xml"
+
+        props_files_of_rules.add(props_name)
+        targets_files_of_rules.add(targets_name)
+
+        props_path = os.path.join(output_dir, props_name)
+        targets_path = os.path.join(output_dir, targets_name)
+        xml_path = os.path.join(output_dir, xml_name)
+
+        _GenerateMSBuildRulePropsFile(props_path, msbuild_rules)
+        _GenerateMSBuildRuleTargetsFile(targets_path, msbuild_rules)
+        _GenerateMSBuildRuleXmlFile(xml_path, msbuild_rules)
+
+    if rules_external:
+        _GenerateExternalRules(
+            rules_external, output_dir, spec, sources, options, actions_to_add
+        )
+    _AdjustSourcesForRules(rules, sources, excluded_sources, True)
+
+
+class MSBuildRule:
+    """Used to store information used to generate an MSBuild rule.
+
+  Attributes:
+    rule_name: The rule name, sanitized to use in XML.
+    target_name: The name of the target.
+    after_targets: The name of the AfterTargets element.
+    before_targets: The name of the BeforeTargets element.
+    depends_on: The name of the DependsOn element.
+    compute_output: The name of the ComputeOutput element.
+    dirs_to_make: The name of the DirsToMake element.
+    inputs: The name of the _inputs element.
+    tlog: The name of the _tlog element.
+    extension: The extension this rule applies to.
+    description: The message displayed when this rule is invoked.
+    additional_dependencies: A string listing additional dependencies.
+    outputs: The outputs of this rule.
+    command: The command used to run the rule.
+  """
+
+    def __init__(self, rule, spec):
+        self.display_name = rule["rule_name"]
+        # Assure that the rule name is only characters and numbers
+        self.rule_name = re.sub(r"\W", "_", self.display_name)
+        # Create the various element names, following the example set by the
+        # Visual Studio 2008 to 2010 conversion.  I don't know if VS2010
+        # is sensitive to the exact names.
+        self.target_name = "_" + self.rule_name
+        self.after_targets = self.rule_name + "AfterTargets"
+        self.before_targets = self.rule_name + "BeforeTargets"
+        self.depends_on = self.rule_name + "DependsOn"
+        self.compute_output = "Compute%sOutput" % self.rule_name
+        self.dirs_to_make = self.rule_name + "DirsToMake"
+        self.inputs = self.rule_name + "_inputs"
+        self.tlog = self.rule_name + "_tlog"
+        self.extension = rule["extension"]
+        if not self.extension.startswith("."):
+            self.extension = "." + self.extension
+
+        self.description = MSVSSettings.ConvertVCMacrosToMSBuild(
+            rule.get("message", self.rule_name)
+        )
+        old_additional_dependencies = _FixPaths(rule.get("inputs", []))
+        self.additional_dependencies = ";".join(
+            [
+                MSVSSettings.ConvertVCMacrosToMSBuild(i)
+                for i in old_additional_dependencies
+            ]
+        )
+        old_outputs = _FixPaths(rule.get("outputs", []))
+        self.outputs = ";".join(
+            [MSVSSettings.ConvertVCMacrosToMSBuild(i) for i in old_outputs]
+        )
+        old_command = _BuildCommandLineForRule(
+            spec, rule, has_input_path=True, do_setup_env=True
+        )
+        self.command = MSVSSettings.ConvertVCMacrosToMSBuild(old_command)
+
+
+def _GenerateMSBuildRulePropsFile(props_path, msbuild_rules):
+    """Generate the .props file."""
+    content = [
+        "Project",
+        {"xmlns": "http://schemas.microsoft.com/developer/msbuild/2003"},
+    ]
+    for rule in msbuild_rules:
+        content.extend(
+            [
+                [
+                    "PropertyGroup",
+                    {
+                        "Condition": "'$(%s)' == '' and '$(%s)' == '' and "
+                        "'$(ConfigurationType)' != 'Makefile'"
+                        % (rule.before_targets, rule.after_targets)
+                    },
+                    [rule.before_targets, "Midl"],
+                    [rule.after_targets, "CustomBuild"],
+                ],
+                [
+                    "PropertyGroup",
+                    [
+                        rule.depends_on,
+                        {"Condition": "'$(ConfigurationType)' != 'Makefile'"},
+                        "_SelectedFiles;$(%s)" % rule.depends_on,
+                    ],
+                ],
+                [
+                    "ItemDefinitionGroup",
+                    [
+                        rule.rule_name,
+                        ["CommandLineTemplate", rule.command],
+                        ["Outputs", rule.outputs],
+                        ["ExecutionDescription", rule.description],
+                        ["AdditionalDependencies", rule.additional_dependencies],
+                    ],
+                ],
+            ]
+        )
+    easy_xml.WriteXmlIfChanged(content, props_path, pretty=True, win32=True)
+
+
+def _GenerateMSBuildRuleTargetsFile(targets_path, msbuild_rules):
+    """Generate the .targets file."""
+    content = [
+        "Project",
+        {"xmlns": "http://schemas.microsoft.com/developer/msbuild/2003"},
+    ]
+    item_group = [
+        "ItemGroup",
+        [
+            "PropertyPageSchema",
+            {"Include": "$(MSBuildThisFileDirectory)$(MSBuildThisFileName).xml"},
+        ],
+    ]
+    for rule in msbuild_rules:
+        item_group.append(
+            [
+                "AvailableItemName",
+                {"Include": rule.rule_name},
+                ["Targets", rule.target_name],
+            ]
+        )
+    content.append(item_group)
+
+    for rule in msbuild_rules:
+        content.append(
+            [
+                "UsingTask",
+                {
+                    "TaskName": rule.rule_name,
+                    "TaskFactory": "XamlTaskFactory",
+                    "AssemblyName": "Microsoft.Build.Tasks.v4.0",
+                },
+                ["Task", "$(MSBuildThisFileDirectory)$(MSBuildThisFileName).xml"],
+            ]
+        )
+    for rule in msbuild_rules:
+        rule_name = rule.rule_name
+        target_outputs = "%%(%s.Outputs)" % rule_name
+        target_inputs = (
+            "%%(%s.Identity);%%(%s.AdditionalDependencies);" "$(MSBuildProjectFile)"
+        ) % (rule_name, rule_name)
+        rule_inputs = "%%(%s.Identity)" % rule_name
+        extension_condition = (
+            "'%(Extension)'=='.obj' or "
+            "'%(Extension)'=='.res' or "
+            "'%(Extension)'=='.rsc' or "
+            "'%(Extension)'=='.lib'"
+        )
+        remove_section = [
+            "ItemGroup",
+            {"Condition": "'@(SelectedFiles)' != ''"},
+            [
+                rule_name,
+                {
+                    "Remove": "@(%s)" % rule_name,
+                    "Condition": "'%(Identity)' != '@(SelectedFiles)'",
+                },
+            ],
+        ]
+        inputs_section = [
+            "ItemGroup",
+            [rule.inputs, {"Include": "%%(%s.AdditionalDependencies)" % rule_name}],
+        ]
+        logging_section = [
+            "ItemGroup",
+            [
+                rule.tlog,
+                {
+                    "Include": "%%(%s.Outputs)" % rule_name,
+                    "Condition": (
+                        "'%%(%s.Outputs)' != '' and "
+                        "'%%(%s.ExcludedFromBuild)' != 'true'" % (rule_name, rule_name)
+                    ),
+                },
+                ["Source", "@(%s, '|')" % rule_name],
+                ["Inputs", "@(%s -> '%%(Fullpath)', ';')" % rule.inputs],
+            ],
+        ]
+        message_section = [
+            "Message",
+            {"Importance": "High", "Text": "%%(%s.ExecutionDescription)" % rule_name},
+        ]
+        write_tlog_section = [
+            "WriteLinesToFile",
+            {
+                "Condition": "'@(%s)' != '' and '%%(%s.ExcludedFromBuild)' != "
+                "'true'" % (rule.tlog, rule.tlog),
+                "File": "$(IntDir)$(ProjectName).write.1.tlog",
+                "Lines": "^%%(%s.Source);@(%s->'%%(Fullpath)')"
+                % (rule.tlog, rule.tlog),
+            },
+        ]
+        read_tlog_section = [
+            "WriteLinesToFile",
+            {
+                "Condition": "'@(%s)' != '' and '%%(%s.ExcludedFromBuild)' != "
+                "'true'" % (rule.tlog, rule.tlog),
+                "File": "$(IntDir)$(ProjectName).read.1.tlog",
+                "Lines": f"^%({rule.tlog}.Source);%({rule.tlog}.Inputs)",
+            },
+        ]
+        command_and_input_section = [
+            rule_name,
+            {
+                "Condition": "'@(%s)' != '' and '%%(%s.ExcludedFromBuild)' != "
+                "'true'" % (rule_name, rule_name),
+                "EchoOff": "true",
+                "StandardOutputImportance": "High",
+                "StandardErrorImportance": "High",
+                "CommandLineTemplate": "%%(%s.CommandLineTemplate)" % rule_name,
+                "AdditionalOptions": "%%(%s.AdditionalOptions)" % rule_name,
+                "Inputs": rule_inputs,
+            },
+        ]
+        content.extend(
+            [
+                [
+                    "Target",
+                    {
+                        "Name": rule.target_name,
+                        "BeforeTargets": "$(%s)" % rule.before_targets,
+                        "AfterTargets": "$(%s)" % rule.after_targets,
+                        "Condition": "'@(%s)' != ''" % rule_name,
+                        "DependsOnTargets": "$(%s);%s"
+                        % (rule.depends_on, rule.compute_output),
+                        "Outputs": target_outputs,
+                        "Inputs": target_inputs,
+                    },
+                    remove_section,
+                    inputs_section,
+                    logging_section,
+                    message_section,
+                    write_tlog_section,
+                    read_tlog_section,
+                    command_and_input_section,
+                ],
+                [
+                    "PropertyGroup",
+                    [
+                        "ComputeLinkInputsTargets",
+                        "$(ComputeLinkInputsTargets);",
+                        "%s;" % rule.compute_output,
+                    ],
+                    [
+                        "ComputeLibInputsTargets",
+                        "$(ComputeLibInputsTargets);",
+                        "%s;" % rule.compute_output,
+                    ],
+                ],
+                [
+                    "Target",
+                    {
+                        "Name": rule.compute_output,
+                        "Condition": "'@(%s)' != ''" % rule_name,
+                    },
+                    [
+                        "ItemGroup",
+                        [
+                            rule.dirs_to_make,
+                            {
+                                "Condition": "'@(%s)' != '' and "
+                                "'%%(%s.ExcludedFromBuild)' != 'true'"
+                                % (rule_name, rule_name),
+                                "Include": "%%(%s.Outputs)" % rule_name,
+                            },
+                        ],
+                        [
+                            "Link",
+                            {
+                                "Include": "%%(%s.Identity)" % rule.dirs_to_make,
+                                "Condition": extension_condition,
+                            },
+                        ],
+                        [
+                            "Lib",
+                            {
+                                "Include": "%%(%s.Identity)" % rule.dirs_to_make,
+                                "Condition": extension_condition,
+                            },
+                        ],
+                        [
+                            "ImpLib",
+                            {
+                                "Include": "%%(%s.Identity)" % rule.dirs_to_make,
+                                "Condition": extension_condition,
+                            },
+                        ],
+                    ],
+                    [
+                        "MakeDir",
+                        {
+                            "Directories": (
+                                "@(%s->'%%(RootDir)%%(Directory)')" % rule.dirs_to_make
+                            )
+                        },
+                    ],
+                ],
+            ]
+        )
+    easy_xml.WriteXmlIfChanged(content, targets_path, pretty=True, win32=True)
+
+
+def _GenerateMSBuildRuleXmlFile(xml_path, msbuild_rules):
+    # Generate the .xml file
+    content = [
+        "ProjectSchemaDefinitions",
+        {
+            "xmlns": (
+                "clr-namespace:Microsoft.Build.Framework.XamlTypes;"
+                "assembly=Microsoft.Build.Framework"
+            ),
+            "xmlns:x": "http://schemas.microsoft.com/winfx/2006/xaml",
+            "xmlns:sys": "clr-namespace:System;assembly=mscorlib",
+            "xmlns:transformCallback": "Microsoft.Cpp.Dev10.ConvertPropertyCallback",
+        },
+    ]
+    for rule in msbuild_rules:
+        content.extend(
+            [
+                [
+                    "Rule",
+                    {
+                        "Name": rule.rule_name,
+                        "PageTemplate": "tool",
+                        "DisplayName": rule.display_name,
+                        "Order": "200",
+                    },
+                    [
+                        "Rule.DataSource",
+                        [
+                            "DataSource",
+                            {"Persistence": "ProjectFile", "ItemType": rule.rule_name},
+                        ],
+                    ],
+                    [
+                        "Rule.Categories",
+                        [
+                            "Category",
+                            {"Name": "General"},
+                            ["Category.DisplayName", ["sys:String", "General"]],
+                        ],
+                        [
+                            "Category",
+                            {"Name": "Command Line", "Subtype": "CommandLine"},
+                            ["Category.DisplayName", ["sys:String", "Command Line"]],
+                        ],
+                    ],
+                    [
+                        "StringListProperty",
+                        {
+                            "Name": "Inputs",
+                            "Category": "Command Line",
+                            "IsRequired": "true",
+                            "Switch": " ",
+                        },
+                        [
+                            "StringListProperty.DataSource",
+                            [
+                                "DataSource",
+                                {
+                                    "Persistence": "ProjectFile",
+                                    "ItemType": rule.rule_name,
+                                    "SourceType": "Item",
+                                },
+                            ],
+                        ],
+                    ],
+                    [
+                        "StringProperty",
+                        {
+                            "Name": "CommandLineTemplate",
+                            "DisplayName": "Command Line",
+                            "Visible": "False",
+                            "IncludeInCommandLine": "False",
+                        },
+                    ],
+                    [
+                        "DynamicEnumProperty",
+                        {
+                            "Name": rule.before_targets,
+                            "Category": "General",
+                            "EnumProvider": "Targets",
+                            "IncludeInCommandLine": "False",
+                        },
+                        [
+                            "DynamicEnumProperty.DisplayName",
+                            ["sys:String", "Execute Before"],
+                        ],
+                        [
+                            "DynamicEnumProperty.Description",
+                            [
+                                "sys:String",
+                                "Specifies the targets for the build customization"
+                                " to run before.",
+                            ],
+                        ],
+                        [
+                            "DynamicEnumProperty.ProviderSettings",
+                            [
+                                "NameValuePair",
+                                {
+                                    "Name": "Exclude",
+                                    "Value": "^%s|^Compute" % rule.before_targets,
+                                },
+                            ],
+                        ],
+                        [
+                            "DynamicEnumProperty.DataSource",
+                            [
+                                "DataSource",
+                                {
+                                    "Persistence": "ProjectFile",
+                                    "HasConfigurationCondition": "true",
+                                },
+                            ],
+                        ],
+                    ],
+                    [
+                        "DynamicEnumProperty",
+                        {
+                            "Name": rule.after_targets,
+                            "Category": "General",
+                            "EnumProvider": "Targets",
+                            "IncludeInCommandLine": "False",
+                        },
+                        [
+                            "DynamicEnumProperty.DisplayName",
+                            ["sys:String", "Execute After"],
+                        ],
+                        [
+                            "DynamicEnumProperty.Description",
+                            [
+                                "sys:String",
+                                (
+                                    "Specifies the targets for the build customization"
+                                    " to run after."
+                                ),
+                            ],
+                        ],
+                        [
+                            "DynamicEnumProperty.ProviderSettings",
+                            [
+                                "NameValuePair",
+                                {
+                                    "Name": "Exclude",
+                                    "Value": "^%s|^Compute" % rule.after_targets,
+                                },
+                            ],
+                        ],
+                        [
+                            "DynamicEnumProperty.DataSource",
+                            [
+                                "DataSource",
+                                {
+                                    "Persistence": "ProjectFile",
+                                    "ItemType": "",
+                                    "HasConfigurationCondition": "true",
+                                },
+                            ],
+                        ],
+                    ],
+                    [
+                        "StringListProperty",
+                        {
+                            "Name": "Outputs",
+                            "DisplayName": "Outputs",
+                            "Visible": "False",
+                            "IncludeInCommandLine": "False",
+                        },
+                    ],
+                    [
+                        "StringProperty",
+                        {
+                            "Name": "ExecutionDescription",
+                            "DisplayName": "Execution Description",
+                            "Visible": "False",
+                            "IncludeInCommandLine": "False",
+                        },
+                    ],
+                    [
+                        "StringListProperty",
+                        {
+                            "Name": "AdditionalDependencies",
+                            "DisplayName": "Additional Dependencies",
+                            "IncludeInCommandLine": "False",
+                            "Visible": "false",
+                        },
+                    ],
+                    [
+                        "StringProperty",
+                        {
+                            "Subtype": "AdditionalOptions",
+                            "Name": "AdditionalOptions",
+                            "Category": "Command Line",
+                        },
+                        [
+                            "StringProperty.DisplayName",
+                            ["sys:String", "Additional Options"],
+                        ],
+                        [
+                            "StringProperty.Description",
+                            ["sys:String", "Additional Options"],
+                        ],
+                    ],
+                ],
+                [
+                    "ItemType",
+                    {"Name": rule.rule_name, "DisplayName": rule.display_name},
+                ],
+                [
+                    "FileExtension",
+                    {"Name": "*" + rule.extension, "ContentType": rule.rule_name},
+                ],
+                [
+                    "ContentType",
+                    {
+                        "Name": rule.rule_name,
+                        "DisplayName": "",
+                        "ItemType": rule.rule_name,
+                    },
+                ],
+            ]
+        )
+    easy_xml.WriteXmlIfChanged(content, xml_path, pretty=True, win32=True)
+
+
+def _GetConfigurationAndPlatform(name, settings, spec):
+    configuration = name.rsplit("_", 1)[0]
+    platform = settings.get("msvs_configuration_platform", "Win32")
+    if spec["toolset"] == "host" and platform == "arm64":
+        platform = "x64"  # Host-only tools are always built for x64
+    return (configuration, platform)
+
+
+def _GetConfigurationCondition(name, settings, spec):
+    return r"'$(Configuration)|$(Platform)'=='%s|%s'" % _GetConfigurationAndPlatform(
+        name, settings, spec
+    )
+
+
+def _GetMSBuildProjectConfigurations(configurations, spec):
+    group = ["ItemGroup", {"Label": "ProjectConfigurations"}]
+    for (name, settings) in sorted(configurations.items()):
+        configuration, platform = _GetConfigurationAndPlatform(name, settings, spec)
+        designation = f"{configuration}|{platform}"
+        group.append(
+            [
+                "ProjectConfiguration",
+                {"Include": designation},
+                ["Configuration", configuration],
+                ["Platform", platform],
+            ]
+        )
+    return [group]
+
+
+def _GetMSBuildGlobalProperties(spec, version, guid, gyp_file_name):
+    namespace = os.path.splitext(gyp_file_name)[0]
+    properties = [
+        [
+            "PropertyGroup",
+            {"Label": "Globals"},
+            ["ProjectGuid", guid],
+            ["Keyword", "Win32Proj"],
+            ["RootNamespace", namespace],
+            ["IgnoreWarnCompileDuplicatedFilename", "true"],
+        ]
+    ]
+
+    if (
+        os.environ.get("PROCESSOR_ARCHITECTURE") == "AMD64"
+        or os.environ.get("PROCESSOR_ARCHITEW6432") == "AMD64"
+    ):
+        properties[0].append(["PreferredToolArchitecture", "x64"])
+
+    if spec.get("msvs_target_platform_version"):
+        target_platform_version = spec.get("msvs_target_platform_version")
+        properties[0].append(["WindowsTargetPlatformVersion", target_platform_version])
+        if spec.get("msvs_target_platform_minversion"):
+            target_platform_minversion = spec.get("msvs_target_platform_minversion")
+            properties[0].append(
+                ["WindowsTargetPlatformMinVersion", target_platform_minversion]
+            )
+        else:
+            properties[0].append(
+                ["WindowsTargetPlatformMinVersion", target_platform_version]
+            )
+
+    if spec.get("msvs_enable_winrt"):
+        properties[0].append(["DefaultLanguage", "en-US"])
+        properties[0].append(["AppContainerApplication", "true"])
+        if spec.get("msvs_application_type_revision"):
+            app_type_revision = spec.get("msvs_application_type_revision")
+            properties[0].append(["ApplicationTypeRevision", app_type_revision])
+        else:
+            properties[0].append(["ApplicationTypeRevision", "8.1"])
+        if spec.get("msvs_enable_winphone"):
+            properties[0].append(["ApplicationType", "Windows Phone"])
+        else:
+            properties[0].append(["ApplicationType", "Windows Store"])
+
+    platform_name = None
+    msvs_windows_sdk_version = None
+    for configuration in spec["configurations"].values():
+        platform_name = platform_name or _ConfigPlatform(configuration)
+        msvs_windows_sdk_version = (
+            msvs_windows_sdk_version
+            or _ConfigWindowsTargetPlatformVersion(configuration, version)
+        )
+        if platform_name and msvs_windows_sdk_version:
+            break
+    if msvs_windows_sdk_version:
+        properties[0].append(
+            ["WindowsTargetPlatformVersion", str(msvs_windows_sdk_version)]
+        )
+    elif version.compatible_sdks:
+        raise GypError(
+            "%s requires any SDK of %s version, but none were found"
+            % (version.description, version.compatible_sdks)
+        )
+
+    if platform_name == "ARM":
+        properties[0].append(["WindowsSDKDesktopARMSupport", "true"])
+
+    return properties
+
+
+def _GetMSBuildConfigurationDetails(spec, build_file):
+    properties = {}
+    for name, settings in spec["configurations"].items():
+        msbuild_attributes = _GetMSBuildAttributes(spec, settings, build_file)
+        condition = _GetConfigurationCondition(name, settings, spec)
+        character_set = msbuild_attributes.get("CharacterSet")
+        config_type = msbuild_attributes.get("ConfigurationType")
+        _AddConditionalProperty(properties, condition, "ConfigurationType", config_type)
+        if config_type == "Driver":
+            _AddConditionalProperty(properties, condition, "DriverType", "WDM")
+            _AddConditionalProperty(
+                properties, condition, "TargetVersion", _ConfigTargetVersion(settings)
+            )
+        if character_set:
+            if "msvs_enable_winrt" not in spec:
+                _AddConditionalProperty(
+                    properties, condition, "CharacterSet", character_set
+                )
+    return _GetMSBuildPropertyGroup(spec, "Configuration", properties)
+
+
+def _GetMSBuildLocalProperties(msbuild_toolset):
+    # Currently the only local property we support is PlatformToolset
+    properties = {}
+    if msbuild_toolset:
+        properties = [
+            [
+                "PropertyGroup",
+                {"Label": "Locals"},
+                ["PlatformToolset", msbuild_toolset],
+            ]
+        ]
+    return properties
+
+
+def _GetMSBuildPropertySheets(configurations, spec):
+    user_props = r"$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props"
+    additional_props = {}
+    props_specified = False
+    for name, settings in sorted(configurations.items()):
+        configuration = _GetConfigurationCondition(name, settings, spec)
+        if "msbuild_props" in settings:
+            additional_props[configuration] = _FixPaths(settings["msbuild_props"])
+            props_specified = True
+        else:
+            additional_props[configuration] = ""
+
+    if not props_specified:
+        return [
+            [
+                "ImportGroup",
+                {"Label": "PropertySheets"},
+                [
+                    "Import",
+                    {
+                        "Project": user_props,
+                        "Condition": "exists('%s')" % user_props,
+                        "Label": "LocalAppDataPlatform",
+                    },
+                ],
+            ]
+        ]
+    else:
+        sheets = []
+        for condition, props in additional_props.items():
+            import_group = [
+                "ImportGroup",
+                {"Label": "PropertySheets", "Condition": condition},
+                [
+                    "Import",
+                    {
+                        "Project": user_props,
+                        "Condition": "exists('%s')" % user_props,
+                        "Label": "LocalAppDataPlatform",
+                    },
+                ],
+            ]
+            for props_file in props:
+                import_group.append(["Import", {"Project": props_file}])
+            sheets.append(import_group)
+        return sheets
+
+
+def _ConvertMSVSBuildAttributes(spec, config, build_file):
+    config_type = _GetMSVSConfigurationType(spec, build_file)
+    msvs_attributes = _GetMSVSAttributes(spec, config, config_type)
+    msbuild_attributes = {}
+    for a in msvs_attributes:
+        if a in ["IntermediateDirectory", "OutputDirectory"]:
+            directory = MSVSSettings.ConvertVCMacrosToMSBuild(msvs_attributes[a])
+            if not directory.endswith("\\"):
+                directory += "\\"
+            msbuild_attributes[a] = directory
+        elif a == "CharacterSet":
+            msbuild_attributes[a] = _ConvertMSVSCharacterSet(msvs_attributes[a])
+        elif a == "ConfigurationType":
+            msbuild_attributes[a] = _ConvertMSVSConfigurationType(msvs_attributes[a])
+        else:
+            print("Warning: Do not know how to convert MSVS attribute " + a)
+    return msbuild_attributes
+
+
+def _ConvertMSVSCharacterSet(char_set):
+    if char_set.isdigit():
+        char_set = {"0": "MultiByte", "1": "Unicode", "2": "MultiByte"}[char_set]
+    return char_set
+
+
+def _ConvertMSVSConfigurationType(config_type):
+    if config_type.isdigit():
+        config_type = {
+            "1": "Application",
+            "2": "DynamicLibrary",
+            "4": "StaticLibrary",
+            "5": "Driver",
+            "10": "Utility",
+        }[config_type]
+    return config_type
+
+
+def _GetMSBuildAttributes(spec, config, build_file):
+    if "msbuild_configuration_attributes" not in config:
+        msbuild_attributes = _ConvertMSVSBuildAttributes(spec, config, build_file)
+
+    else:
+        config_type = _GetMSVSConfigurationType(spec, build_file)
+        config_type = _ConvertMSVSConfigurationType(config_type)
+        msbuild_attributes = config.get("msbuild_configuration_attributes", {})
+        msbuild_attributes.setdefault("ConfigurationType", config_type)
+        output_dir = msbuild_attributes.get(
+            "OutputDirectory", "$(SolutionDir)$(Configuration)"
+        )
+        msbuild_attributes["OutputDirectory"] = _FixPath(output_dir) + "\\"
+        if "IntermediateDirectory" not in msbuild_attributes:
+            intermediate = _FixPath("$(Configuration)") + "\\"
+            msbuild_attributes["IntermediateDirectory"] = intermediate
+        if "CharacterSet" in msbuild_attributes:
+            msbuild_attributes["CharacterSet"] = _ConvertMSVSCharacterSet(
+                msbuild_attributes["CharacterSet"]
+            )
+    if "TargetName" not in msbuild_attributes:
+        prefix = spec.get("product_prefix", "")
+        product_name = spec.get("product_name", "$(ProjectName)")
+        target_name = prefix + product_name
+        msbuild_attributes["TargetName"] = target_name
+    if "TargetExt" not in msbuild_attributes and "product_extension" in spec:
+        ext = spec.get("product_extension")
+        msbuild_attributes["TargetExt"] = "." + ext
+
+    if spec.get("msvs_external_builder"):
+        external_out_dir = spec.get("msvs_external_builder_out_dir", ".")
+        msbuild_attributes["OutputDirectory"] = _FixPath(external_out_dir) + "\\"
+
+    # Make sure that 'TargetPath' matches 'Lib.OutputFile' or 'Link.OutputFile'
+    # (depending on the tool used) to avoid MSB8012 warning.
+    msbuild_tool_map = {
+        "executable": "Link",
+        "shared_library": "Link",
+        "loadable_module": "Link",
+        "windows_driver": "Link",
+        "static_library": "Lib",
+    }
+    msbuild_tool = msbuild_tool_map.get(spec["type"])
+    if msbuild_tool:
+        msbuild_settings = config["finalized_msbuild_settings"]
+        out_file = msbuild_settings[msbuild_tool].get("OutputFile")
+        if out_file:
+            msbuild_attributes["TargetPath"] = _FixPath(out_file)
+        target_ext = msbuild_settings[msbuild_tool].get("TargetExt")
+        if target_ext:
+            msbuild_attributes["TargetExt"] = target_ext
+
+    return msbuild_attributes
+
+
+def _GetMSBuildConfigurationGlobalProperties(spec, configurations, build_file):
+    # TODO(jeanluc) We could optimize out the following and do it only if
+    # there are actions.
+    # TODO(jeanluc) Handle the equivalent of setting 'CYGWIN=nontsec'.
+    new_paths = []
+    cygwin_dirs = spec.get("msvs_cygwin_dirs", ["."])[0]
+    if cygwin_dirs:
+        cyg_path = "$(MSBuildProjectDirectory)\\%s\\bin\\" % _FixPath(cygwin_dirs)
+        new_paths.append(cyg_path)
+        # TODO(jeanluc) Change the convention to have both a cygwin_dir and a
+        # python_dir.
+        python_path = cyg_path.replace("cygwin\\bin", "python_26")
+        new_paths.append(python_path)
+        if new_paths:
+            new_paths = "$(ExecutablePath);" + ";".join(new_paths)
+
+    properties = {}
+    for (name, configuration) in sorted(configurations.items()):
+        condition = _GetConfigurationCondition(name, configuration, spec)
+        attributes = _GetMSBuildAttributes(spec, configuration, build_file)
+        msbuild_settings = configuration["finalized_msbuild_settings"]
+        _AddConditionalProperty(
+            properties, condition, "IntDir", attributes["IntermediateDirectory"]
+        )
+        _AddConditionalProperty(
+            properties, condition, "OutDir", attributes["OutputDirectory"]
+        )
+        _AddConditionalProperty(
+            properties, condition, "TargetName", attributes["TargetName"]
+        )
+        if "TargetExt" in attributes:
+            _AddConditionalProperty(
+                properties, condition, "TargetExt", attributes["TargetExt"]
+            )
+
+        if attributes.get("TargetPath"):
+            _AddConditionalProperty(
+                properties, condition, "TargetPath", attributes["TargetPath"]
+            )
+        if attributes.get("TargetExt"):
+            _AddConditionalProperty(
+                properties, condition, "TargetExt", attributes["TargetExt"]
+            )
+
+        if new_paths:
+            _AddConditionalProperty(properties, condition, "ExecutablePath", new_paths)
+        tool_settings = msbuild_settings.get("", {})
+        for name, value in sorted(tool_settings.items()):
+            formatted_value = _GetValueFormattedForMSBuild("", name, value)
+            _AddConditionalProperty(properties, condition, name, formatted_value)
+    return _GetMSBuildPropertyGroup(spec, None, properties)
+
+
+def _AddConditionalProperty(properties, condition, name, value):
+    """Adds a property / conditional value pair to a dictionary.
+
+  Arguments:
+    properties: The dictionary to be modified.  The key is the name of the
+        property.  The value is itself a dictionary; its key is the value and
+        the value a list of condition for which this value is true.
+    condition: The condition under which the named property has the value.
+    name: The name of the property.
+    value: The value of the property.
+  """
+    if name not in properties:
+        properties[name] = {}
+    values = properties[name]
+    if value not in values:
+        values[value] = []
+    conditions = values[value]
+    conditions.append(condition)
+
+
+# Regex for msvs variable references ( i.e. $(FOO) ).
+MSVS_VARIABLE_REFERENCE = re.compile(r"\$\(([a-zA-Z_][a-zA-Z0-9_]*)\)")
+
+
+def _GetMSBuildPropertyGroup(spec, label, properties):
+    """Returns a PropertyGroup definition for the specified properties.
+
+  Arguments:
+    spec: The target project dict.
+    label: An optional label for the PropertyGroup.
+    properties: The dictionary to be converted.  The key is the name of the
+        property.  The value is itself a dictionary; its key is the value and
+        the value a list of condition for which this value is true.
+  """
+    group = ["PropertyGroup"]
+    if label:
+        group.append({"Label": label})
+    num_configurations = len(spec["configurations"])
+
+    def GetEdges(node):
+        # Use a definition of edges such that user_of_variable -> used_varible.
+        # This happens to be easier in this case, since a variable's
+        # definition contains all variables it references in a single string.
+        edges = set()
+        for value in sorted(properties[node].keys()):
+            # Add to edges all $(...) references to variables.
+            #
+            # Variable references that refer to names not in properties are excluded
+            # These can exist for instance to refer built in definitions like
+            # $(SolutionDir).
+            #
+            # Self references are ignored. Self reference is used in a few places to
+            # append to the default value. I.e. PATH=$(PATH);other_path
+            edges.update(
+                {
+                    v
+                    for v in MSVS_VARIABLE_REFERENCE.findall(value)
+                    if v in properties and v != node
+                }
+            )
+        return edges
+
+    properties_ordered = gyp.common.TopologicallySorted(properties.keys(), GetEdges)
+    # Walk properties in the reverse of a topological sort on
+    # user_of_variable -> used_variable as this ensures variables are
+    # defined before they are used.
+    # NOTE: reverse(topsort(DAG)) = topsort(reverse_edges(DAG))
+    for name in reversed(properties_ordered):
+        values = properties[name]
+        for value, conditions in sorted(values.items()):
+            if len(conditions) == num_configurations:
+                # If the value is the same all configurations,
+                # just add one unconditional entry.
+                group.append([name, value])
+            else:
+                for condition in conditions:
+                    group.append([name, {"Condition": condition}, value])
+    return [group]
+
+
+def _GetMSBuildToolSettingsSections(spec, configurations):
+    groups = []
+    for (name, configuration) in sorted(configurations.items()):
+        msbuild_settings = configuration["finalized_msbuild_settings"]
+        group = [
+            "ItemDefinitionGroup",
+            {"Condition": _GetConfigurationCondition(name, configuration, spec)},
+        ]
+        for tool_name, tool_settings in sorted(msbuild_settings.items()):
+            # Skip the tool named '' which is a holder of global settings handled
+            # by _GetMSBuildConfigurationGlobalProperties.
+            if tool_name:
+                if tool_settings:
+                    tool = [tool_name]
+                    for name, value in sorted(tool_settings.items()):
+                        formatted_value = _GetValueFormattedForMSBuild(
+                            tool_name, name, value
+                        )
+                        tool.append([name, formatted_value])
+                    group.append(tool)
+        groups.append(group)
+    return groups
+
+
+def _FinalizeMSBuildSettings(spec, configuration):
+    if "msbuild_settings" in configuration:
+        converted = False
+        msbuild_settings = configuration["msbuild_settings"]
+        MSVSSettings.ValidateMSBuildSettings(msbuild_settings)
+    else:
+        converted = True
+        msvs_settings = configuration.get("msvs_settings", {})
+        msbuild_settings = MSVSSettings.ConvertToMSBuildSettings(msvs_settings)
+    include_dirs, midl_include_dirs, resource_include_dirs = _GetIncludeDirs(
+        configuration
+    )
+    libraries = _GetLibraries(spec)
+    library_dirs = _GetLibraryDirs(configuration)
+    out_file, _, msbuild_tool = _GetOutputFilePathAndTool(spec, msbuild=True)
+    target_ext = _GetOutputTargetExt(spec)
+    defines = _GetDefines(configuration)
+    if converted:
+        # Visual Studio 2010 has TR1
+        defines = [d for d in defines if d != "_HAS_TR1=0"]
+        # Warn of ignored settings
+        ignored_settings = ["msvs_tool_files"]
+        for ignored_setting in ignored_settings:
+            value = configuration.get(ignored_setting)
+            if value:
+                print(
+                    "Warning: The automatic conversion to MSBuild does not handle "
+                    "%s.  Ignoring setting of %s" % (ignored_setting, str(value))
+                )
+
+    defines = [_EscapeCppDefineForMSBuild(d) for d in defines]
+    disabled_warnings = _GetDisabledWarnings(configuration)
+    prebuild = configuration.get("msvs_prebuild")
+    postbuild = configuration.get("msvs_postbuild")
+    def_file = _GetModuleDefinition(spec)
+    precompiled_header = configuration.get("msvs_precompiled_header")
+
+    # Add the information to the appropriate tool
+    # TODO(jeanluc) We could optimize and generate these settings only if
+    # the corresponding files are found, e.g. don't generate ResourceCompile
+    # if you don't have any resources.
+    _ToolAppend(
+        msbuild_settings, "ClCompile", "AdditionalIncludeDirectories", include_dirs
+    )
+    _ToolAppend(
+        msbuild_settings, "Midl", "AdditionalIncludeDirectories", midl_include_dirs
+    )
+    _ToolAppend(
+        msbuild_settings,
+        "ResourceCompile",
+        "AdditionalIncludeDirectories",
+        resource_include_dirs,
+    )
+    # Add in libraries, note that even for empty libraries, we want this
+    # set, to prevent inheriting default libraries from the environment.
+    _ToolSetOrAppend(msbuild_settings, "Link", "AdditionalDependencies", libraries)
+    _ToolAppend(msbuild_settings, "Link", "AdditionalLibraryDirectories", library_dirs)
+    if out_file:
+        _ToolAppend(
+            msbuild_settings, msbuild_tool, "OutputFile", out_file, only_if_unset=True
+        )
+    if target_ext:
+        _ToolAppend(
+            msbuild_settings, msbuild_tool, "TargetExt", target_ext, only_if_unset=True
+        )
+    # Add defines.
+    _ToolAppend(msbuild_settings, "ClCompile", "PreprocessorDefinitions", defines)
+    _ToolAppend(msbuild_settings, "ResourceCompile", "PreprocessorDefinitions", defines)
+    # Add disabled warnings.
+    _ToolAppend(
+        msbuild_settings, "ClCompile", "DisableSpecificWarnings", disabled_warnings
+    )
+    # Turn on precompiled headers if appropriate.
+    if precompiled_header:
+        precompiled_header = os.path.split(precompiled_header)[1]
+        _ToolAppend(msbuild_settings, "ClCompile", "PrecompiledHeader", "Use")
+        _ToolAppend(
+            msbuild_settings, "ClCompile", "PrecompiledHeaderFile", precompiled_header
+        )
+        _ToolAppend(
+            msbuild_settings, "ClCompile", "ForcedIncludeFiles", [precompiled_header]
+        )
+    else:
+        _ToolAppend(msbuild_settings, "ClCompile", "PrecompiledHeader", "NotUsing")
+    # Turn off WinRT compilation
+    _ToolAppend(msbuild_settings, "ClCompile", "CompileAsWinRT", "false")
+    # Turn on import libraries if appropriate
+    if spec.get("msvs_requires_importlibrary"):
+        _ToolAppend(msbuild_settings, "", "IgnoreImportLibrary", "false")
+    # Loadable modules don't generate import libraries;
+    # tell dependent projects to not expect one.
+    if spec["type"] == "loadable_module":
+        _ToolAppend(msbuild_settings, "", "IgnoreImportLibrary", "true")
+    # Set the module definition file if any.
+    if def_file:
+        _ToolAppend(msbuild_settings, "Link", "ModuleDefinitionFile", def_file)
+    configuration["finalized_msbuild_settings"] = msbuild_settings
+    if prebuild:
+        _ToolAppend(msbuild_settings, "PreBuildEvent", "Command", prebuild)
+    if postbuild:
+        _ToolAppend(msbuild_settings, "PostBuildEvent", "Command", postbuild)
+
+
+def _GetValueFormattedForMSBuild(tool_name, name, value):
+    if type(value) == list:
+        # For some settings, VS2010 does not automatically extends the settings
+        # TODO(jeanluc) Is this what we want?
+        if name in [
+            "AdditionalIncludeDirectories",
+            "AdditionalLibraryDirectories",
+            "AdditionalOptions",
+            "DelayLoadDLLs",
+            "DisableSpecificWarnings",
+            "PreprocessorDefinitions",
+        ]:
+            value.append("%%(%s)" % name)
+        # For most tools, entries in a list should be separated with ';' but some
+        # settings use a space.  Check for those first.
+        exceptions = {
+            "ClCompile": ["AdditionalOptions"],
+            "Link": ["AdditionalOptions"],
+            "Lib": ["AdditionalOptions"],
+        }
+        if tool_name in exceptions and name in exceptions[tool_name]:
+            char = " "
+        else:
+            char = ";"
+        formatted_value = char.join(
+            [MSVSSettings.ConvertVCMacrosToMSBuild(i) for i in value]
+        )
+    else:
+        formatted_value = MSVSSettings.ConvertVCMacrosToMSBuild(value)
+    return formatted_value
+
+
+def _VerifySourcesExist(sources, root_dir):
+    """Verifies that all source files exist on disk.
+
+  Checks that all regular source files, i.e. not created at run time,
+  exist on disk.  Missing files cause needless recompilation but no otherwise
+  visible errors.
+
+  Arguments:
+    sources: A recursive list of Filter/file names.
+    root_dir: The root directory for the relative path names.
+  Returns:
+    A list of source files that cannot be found on disk.
+  """
+    missing_sources = []
+    for source in sources:
+        if isinstance(source, MSVSProject.Filter):
+            missing_sources.extend(_VerifySourcesExist(source.contents, root_dir))
+        else:
+            if "$" not in source:
+                full_path = os.path.join(root_dir, source)
+                if not os.path.exists(full_path):
+                    missing_sources.append(full_path)
+    return missing_sources
+
+
+def _GetMSBuildSources(
+    spec,
+    sources,
+    exclusions,
+    rule_dependencies,
+    extension_to_rule_name,
+    actions_spec,
+    sources_handled_by_action,
+    list_excluded,
+):
+    groups = [
+        "none",
+        "masm",
+        "midl",
+        "include",
+        "compile",
+        "resource",
+        "rule",
+        "rule_dependency",
+    ]
+    grouped_sources = {}
+    for g in groups:
+        grouped_sources[g] = []
+
+    _AddSources2(
+        spec,
+        sources,
+        exclusions,
+        grouped_sources,
+        rule_dependencies,
+        extension_to_rule_name,
+        sources_handled_by_action,
+        list_excluded,
+    )
+    sources = []
+    for g in groups:
+        if grouped_sources[g]:
+            sources.append(["ItemGroup"] + grouped_sources[g])
+    if actions_spec:
+        sources.append(["ItemGroup"] + actions_spec)
+    return sources
+
+
+def _AddSources2(
+    spec,
+    sources,
+    exclusions,
+    grouped_sources,
+    rule_dependencies,
+    extension_to_rule_name,
+    sources_handled_by_action,
+    list_excluded,
+):
+    extensions_excluded_from_precompile = []
+    for source in sources:
+        if isinstance(source, MSVSProject.Filter):
+            _AddSources2(
+                spec,
+                source.contents,
+                exclusions,
+                grouped_sources,
+                rule_dependencies,
+                extension_to_rule_name,
+                sources_handled_by_action,
+                list_excluded,
+            )
+        else:
+            if source not in sources_handled_by_action:
+                detail = []
+                excluded_configurations = exclusions.get(source, [])
+                if len(excluded_configurations) == len(spec["configurations"]):
+                    detail.append(["ExcludedFromBuild", "true"])
+                else:
+                    for config_name, configuration in sorted(excluded_configurations):
+                        condition = _GetConfigurationCondition(
+                            config_name, configuration
+                        )
+                        detail.append(
+                            ["ExcludedFromBuild", {"Condition": condition}, "true"]
+                        )
+                # Add precompile if needed
+                for config_name, configuration in spec["configurations"].items():
+                    precompiled_source = configuration.get(
+                        "msvs_precompiled_source", ""
+                    )
+                    if precompiled_source != "":
+                        precompiled_source = _FixPath(precompiled_source)
+                        if not extensions_excluded_from_precompile:
+                            # If the precompiled header is generated by a C source,
+                            # we must not try to use it for C++ sources,
+                            # and vice versa.
+                            basename, extension = os.path.splitext(precompiled_source)
+                            if extension == ".c":
+                                extensions_excluded_from_precompile = [
+                                    ".cc",
+                                    ".cpp",
+                                    ".cxx",
+                                ]
+                            else:
+                                extensions_excluded_from_precompile = [".c"]
+
+                    if precompiled_source == source:
+                        condition = _GetConfigurationCondition(
+                            config_name, configuration, spec
+                        )
+                        detail.append(
+                            ["PrecompiledHeader", {"Condition": condition}, "Create"]
+                        )
+                    else:
+                        # Turn off precompiled header usage for source files of a
+                        # different type than the file that generated the
+                        # precompiled header.
+                        for extension in extensions_excluded_from_precompile:
+                            if source.endswith(extension):
+                                detail.append(["PrecompiledHeader", ""])
+                                detail.append(["ForcedIncludeFiles", ""])
+
+                group, element = _MapFileToMsBuildSourceType(
+                    source,
+                    rule_dependencies,
+                    extension_to_rule_name,
+                    _GetUniquePlatforms(spec),
+                    spec["toolset"],
+                )
+                if group == "compile" and not os.path.isabs(source):
+                    # Add an <ObjectFileName> value to support duplicate source
+                    # file basenames, except for absolute paths to avoid paths
+                    # with more than 260 characters.
+                    file_name = os.path.splitext(source)[0] + ".obj"
+                    if file_name.startswith("..\\"):
+                        file_name = re.sub(r"^(\.\.\\)+", "", file_name)
+                    elif file_name.startswith("$("):
+                        file_name = re.sub(r"^\$\([^)]+\)\\", "", file_name)
+                    detail.append(["ObjectFileName", "$(IntDir)\\" + file_name])
+                grouped_sources[group].append([element, {"Include": source}] + detail)
+
+
+def _GetMSBuildProjectReferences(project):
+    references = []
+    if project.dependencies:
+        group = ["ItemGroup"]
+        added_dependency_set = set()
+        for dependency in project.dependencies:
+            dependency_spec = dependency.spec
+            should_skip_dep = False
+            if project.spec["toolset"] == "target":
+                if dependency_spec["toolset"] == "host":
+                    if dependency_spec["type"] == "static_library":
+                        should_skip_dep = True
+            if dependency.name.startswith("run_"):
+                should_skip_dep = False
+            if should_skip_dep:
+                continue
+
+            canonical_name = dependency.name.replace("_host", "")
+            added_dependency_set.add(canonical_name)
+            guid = dependency.guid
+            project_dir = os.path.split(project.path)[0]
+            relative_path = gyp.common.RelativePath(dependency.path, project_dir)
+            project_ref = [
+                "ProjectReference",
+                {"Include": relative_path},
+                ["Project", guid],
+                ["ReferenceOutputAssembly", "false"],
+            ]
+            for config in dependency.spec.get("configurations", {}).values():
+                if config.get("msvs_use_library_dependency_inputs", 0):
+                    project_ref.append(["UseLibraryDependencyInputs", "true"])
+                    break
+                # If it's disabled in any config, turn it off in the reference.
+                if config.get("msvs_2010_disable_uldi_when_referenced", 0):
+                    project_ref.append(["UseLibraryDependencyInputs", "false"])
+                    break
+            group.append(project_ref)
+        references.append(group)
+    return references
+
+
+def _GenerateMSBuildProject(project, options, version, generator_flags, spec):
+    spec = project.spec
+    configurations = spec["configurations"]
+    toolset = spec["toolset"]
+    project_dir, project_file_name = os.path.split(project.path)
+    gyp.common.EnsureDirExists(project.path)
+    # Prepare list of sources and excluded sources.
+
+    gyp_file = os.path.split(project.build_file)[1]
+    sources, excluded_sources = _PrepareListOfSources(spec, generator_flags, gyp_file)
+    # Add rules.
+    actions_to_add = {}
+    props_files_of_rules = set()
+    targets_files_of_rules = set()
+    rule_dependencies = set()
+    extension_to_rule_name = {}
+    list_excluded = generator_flags.get("msvs_list_excluded_files", True)
+    platforms = _GetUniquePlatforms(spec)
+
+    # Don't generate rules if we are using an external builder like ninja.
+    if not spec.get("msvs_external_builder"):
+        _GenerateRulesForMSBuild(
+            project_dir,
+            options,
+            spec,
+            sources,
+            excluded_sources,
+            props_files_of_rules,
+            targets_files_of_rules,
+            actions_to_add,
+            rule_dependencies,
+            extension_to_rule_name,
+        )
+    else:
+        rules = spec.get("rules", [])
+        _AdjustSourcesForRules(rules, sources, excluded_sources, True)
+
+    sources, excluded_sources, excluded_idl = _AdjustSourcesAndConvertToFilterHierarchy(
+        spec, options, project_dir, sources, excluded_sources, list_excluded, version
+    )
+
+    # Don't add actions if we are using an external builder like ninja.
+    if not spec.get("msvs_external_builder"):
+        _AddActions(actions_to_add, spec, project.build_file)
+        _AddCopies(actions_to_add, spec)
+
+        # NOTE: this stanza must appear after all actions have been decided.
+        # Don't excluded sources with actions attached, or they won't run.
+        excluded_sources = _FilterActionsFromExcluded(excluded_sources, actions_to_add)
+
+    exclusions = _GetExcludedFilesFromBuild(spec, excluded_sources, excluded_idl)
+    actions_spec, sources_handled_by_action = _GenerateActionsForMSBuild(
+        spec, actions_to_add
+    )
+
+    _GenerateMSBuildFiltersFile(
+        project.path + ".filters",
+        sources,
+        rule_dependencies,
+        extension_to_rule_name,
+        platforms,
+        toolset,
+    )
+    missing_sources = _VerifySourcesExist(sources, project_dir)
+
+    for configuration in configurations.values():
+        _FinalizeMSBuildSettings(spec, configuration)
+
+    # Add attributes to root element
+
+    import_default_section = [
+        ["Import", {"Project": r"$(VCTargetsPath)\Microsoft.Cpp.Default.props"}]
+    ]
+    import_cpp_props_section = [
+        ["Import", {"Project": r"$(VCTargetsPath)\Microsoft.Cpp.props"}]
+    ]
+    import_cpp_targets_section = [
+        ["Import", {"Project": r"$(VCTargetsPath)\Microsoft.Cpp.targets"}]
+    ]
+    import_masm_props_section = [
+        ["Import", {"Project": r"$(VCTargetsPath)\BuildCustomizations\masm.props"}]
+    ]
+    import_masm_targets_section = [
+        ["Import", {"Project": r"$(VCTargetsPath)\BuildCustomizations\masm.targets"}]
+    ]
+    import_marmasm_props_section = [
+        ["Import", {"Project": r"$(VCTargetsPath)\BuildCustomizations\marmasm.props"}]
+    ]
+    import_marmasm_targets_section = [
+        ["Import", {"Project": r"$(VCTargetsPath)\BuildCustomizations\marmasm.targets"}]
+    ]
+    macro_section = [["PropertyGroup", {"Label": "UserMacros"}]]
+
+    content = [
+        "Project",
+        {
+            "xmlns": "http://schemas.microsoft.com/developer/msbuild/2003",
+            "ToolsVersion": version.ProjectVersion(),
+            "DefaultTargets": "Build",
+        },
+    ]
+
+    content += _GetMSBuildProjectConfigurations(configurations, spec)
+    content += _GetMSBuildGlobalProperties(
+        spec, version, project.guid, project_file_name
+    )
+    content += import_default_section
+    content += _GetMSBuildConfigurationDetails(spec, project.build_file)
+    if spec.get("msvs_enable_winphone"):
+        content += _GetMSBuildLocalProperties("v120_wp81")
+    else:
+        content += _GetMSBuildLocalProperties(project.msbuild_toolset)
+    content += import_cpp_props_section
+    content += import_masm_props_section
+    if "arm64" in platforms and toolset == "target":
+        content += import_marmasm_props_section
+    content += _GetMSBuildExtensions(props_files_of_rules)
+    content += _GetMSBuildPropertySheets(configurations, spec)
+    content += macro_section
+    content += _GetMSBuildConfigurationGlobalProperties(
+        spec, configurations, project.build_file
+    )
+    content += _GetMSBuildToolSettingsSections(spec, configurations)
+    content += _GetMSBuildSources(
+        spec,
+        sources,
+        exclusions,
+        rule_dependencies,
+        extension_to_rule_name,
+        actions_spec,
+        sources_handled_by_action,
+        list_excluded,
+    )
+    content += _GetMSBuildProjectReferences(project)
+    content += import_cpp_targets_section
+    content += import_masm_targets_section
+    if "arm64" in platforms and toolset == "target":
+        content += import_marmasm_targets_section
+    content += _GetMSBuildExtensionTargets(targets_files_of_rules)
+
+    if spec.get("msvs_external_builder"):
+        content += _GetMSBuildExternalBuilderTargets(spec)
+
+    # TODO(jeanluc) File a bug to get rid of runas.  We had in MSVS:
+    # has_run_as = _WriteMSVSUserFile(project.path, version, spec)
+
+    easy_xml.WriteXmlIfChanged(content, project.path, pretty=True, win32=True)
+
+    return missing_sources
+
+
+def _GetMSBuildExternalBuilderTargets(spec):
+    """Return a list of MSBuild targets for external builders.
+
+  The "Build" and "Clean" targets are always generated.  If the spec contains
+  'msvs_external_builder_clcompile_cmd', then the "ClCompile" target will also
+  be generated, to support building selected C/C++ files.
+
+  Arguments:
+    spec: The gyp target spec.
+  Returns:
+    List of MSBuild 'Target' specs.
+  """
+    build_cmd = _BuildCommandLineForRuleRaw(
+        spec, spec["msvs_external_builder_build_cmd"], False, False, False, False
+    )
+    build_target = ["Target", {"Name": "Build"}]
+    build_target.append(["Exec", {"Command": build_cmd}])
+
+    clean_cmd = _BuildCommandLineForRuleRaw(
+        spec, spec["msvs_external_builder_clean_cmd"], False, False, False, False
+    )
+    clean_target = ["Target", {"Name": "Clean"}]
+    clean_target.append(["Exec", {"Command": clean_cmd}])
+
+    targets = [build_target, clean_target]
+
+    if spec.get("msvs_external_builder_clcompile_cmd"):
+        clcompile_cmd = _BuildCommandLineForRuleRaw(
+            spec,
+            spec["msvs_external_builder_clcompile_cmd"],
+            False,
+            False,
+            False,
+            False,
+        )
+        clcompile_target = ["Target", {"Name": "ClCompile"}]
+        clcompile_target.append(["Exec", {"Command": clcompile_cmd}])
+        targets.append(clcompile_target)
+
+    return targets
+
+
+def _GetMSBuildExtensions(props_files_of_rules):
+    extensions = ["ImportGroup", {"Label": "ExtensionSettings"}]
+    for props_file in props_files_of_rules:
+        extensions.append(["Import", {"Project": props_file}])
+    return [extensions]
+
+
+def _GetMSBuildExtensionTargets(targets_files_of_rules):
+    targets_node = ["ImportGroup", {"Label": "ExtensionTargets"}]
+    for targets_file in sorted(targets_files_of_rules):
+        targets_node.append(["Import", {"Project": targets_file}])
+    return [targets_node]
+
+
+def _GenerateActionsForMSBuild(spec, actions_to_add):
+    """Add actions accumulated into an actions_to_add, merging as needed.
+
+  Arguments:
+    spec: the target project dict
+    actions_to_add: dictionary keyed on input name, which maps to a list of
+        dicts describing the actions attached to that input file.
+
+  Returns:
+    A pair of (action specification, the sources handled by this action).
+  """
+    sources_handled_by_action = OrderedSet()
+    actions_spec = []
+    for primary_input, actions in actions_to_add.items():
+        if generator_supports_multiple_toolsets:
+            primary_input = primary_input.replace(".exe", "_host.exe")
+        inputs = OrderedSet()
+        outputs = OrderedSet()
+        descriptions = []
+        commands = []
+        for action in actions:
+
+            def fixup_host_exe(i):
+                if "$(OutDir)" in i:
+                    i = i.replace(".exe", "_host.exe")
+                return i
+
+            if generator_supports_multiple_toolsets:
+                action["inputs"] = [fixup_host_exe(i) for i in action["inputs"]]
+            inputs.update(OrderedSet(action["inputs"]))
+            outputs.update(OrderedSet(action["outputs"]))
+            descriptions.append(action["description"])
+            cmd = action["command"]
+            if generator_supports_multiple_toolsets:
+                cmd = cmd.replace(".exe", "_host.exe")
+            # For most actions, add 'call' so that actions that invoke batch files
+            # return and continue executing.  msbuild_use_call provides a way to
+            # disable this but I have not seen any adverse effect from doing that
+            # for everything.
+            if action.get("msbuild_use_call", True):
+                cmd = "call " + cmd
+            commands.append(cmd)
+        # Add the custom build action for one input file.
+        description = ", and also ".join(descriptions)
+
+        # We can't join the commands simply with && because the command line will
+        # get too long. See also _AddActions: cygwin's setup_env mustn't be called
+        # for every invocation or the command that sets the PATH will grow too
+        # long.
+        command = "\r\n".join(
+            [c + "\r\nif %errorlevel% neq 0 exit /b %errorlevel%" for c in commands]
+        )
+        _AddMSBuildAction(
+            spec,
+            primary_input,
+            inputs,
+            outputs,
+            command,
+            description,
+            sources_handled_by_action,
+            actions_spec,
+        )
+    return actions_spec, sources_handled_by_action
+
+
+def _AddMSBuildAction(
+    spec,
+    primary_input,
+    inputs,
+    outputs,
+    cmd,
+    description,
+    sources_handled_by_action,
+    actions_spec,
+):
+    command = MSVSSettings.ConvertVCMacrosToMSBuild(cmd)
+    primary_input = _FixPath(primary_input)
+    inputs_array = _FixPaths(inputs)
+    outputs_array = _FixPaths(outputs)
+    additional_inputs = ";".join([i for i in inputs_array if i != primary_input])
+    outputs = ";".join(outputs_array)
+    sources_handled_by_action.add(primary_input)
+    action_spec = ["CustomBuild", {"Include": primary_input}]
+    action_spec.extend(
+        # TODO(jeanluc) 'Document' for all or just if as_sources?
+        [
+            ["FileType", "Document"],
+            ["Command", command],
+            ["Message", description],
+            ["Outputs", outputs],
+        ]
+    )
+    if additional_inputs:
+        action_spec.append(["AdditionalInputs", additional_inputs])
+    actions_spec.append(action_spec)
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/msvs_test.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/msvs_test.py
new file mode 100644
index 0000000..e80b57f
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/msvs_test.py
@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+""" Unit tests for the msvs.py file. """
+
+import gyp.generator.msvs as msvs
+import unittest
+
+from io import StringIO
+
+
+class TestSequenceFunctions(unittest.TestCase):
+    def setUp(self):
+        self.stderr = StringIO()
+
+    def test_GetLibraries(self):
+        self.assertEqual(msvs._GetLibraries({}), [])
+        self.assertEqual(msvs._GetLibraries({"libraries": []}), [])
+        self.assertEqual(
+            msvs._GetLibraries({"other": "foo", "libraries": ["a.lib"]}), ["a.lib"]
+        )
+        self.assertEqual(msvs._GetLibraries({"libraries": ["-la"]}), ["a.lib"])
+        self.assertEqual(
+            msvs._GetLibraries(
+                {
+                    "libraries": [
+                        "a.lib",
+                        "b.lib",
+                        "c.lib",
+                        "-lb.lib",
+                        "-lb.lib",
+                        "d.lib",
+                        "a.lib",
+                    ]
+                }
+            ),
+            ["c.lib", "b.lib", "d.lib", "a.lib"],
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/ninja.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/ninja.py
new file mode 100644
index 0000000..d173bf2
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/ninja.py
@@ -0,0 +1,2936 @@
+# Copyright (c) 2013 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+import collections
+import copy
+import hashlib
+import json
+import multiprocessing
+import os.path
+import re
+import signal
+import subprocess
+import sys
+import gyp
+import gyp.common
+import gyp.msvs_emulation
+import gyp.MSVSUtil as MSVSUtil
+import gyp.xcode_emulation
+
+from io import StringIO
+
+from gyp.common import GetEnvironFallback
+import gyp.ninja_syntax as ninja_syntax
+
+generator_default_variables = {
+    "EXECUTABLE_PREFIX": "",
+    "EXECUTABLE_SUFFIX": "",
+    "STATIC_LIB_PREFIX": "lib",
+    "STATIC_LIB_SUFFIX": ".a",
+    "SHARED_LIB_PREFIX": "lib",
+    # Gyp expects the following variables to be expandable by the build
+    # system to the appropriate locations.  Ninja prefers paths to be
+    # known at gyp time.  To resolve this, introduce special
+    # variables starting with $! and $| (which begin with a $ so gyp knows it
+    # should be treated specially, but is otherwise an invalid
+    # ninja/shell variable) that are passed to gyp here but expanded
+    # before writing out into the target .ninja files; see
+    # ExpandSpecial.
+    # $! is used for variables that represent a path and that can only appear at
+    # the start of a string, while $| is used for variables that can appear
+    # anywhere in a string.
+    "INTERMEDIATE_DIR": "$!INTERMEDIATE_DIR",
+    "SHARED_INTERMEDIATE_DIR": "$!PRODUCT_DIR/gen",
+    "PRODUCT_DIR": "$!PRODUCT_DIR",
+    "CONFIGURATION_NAME": "$|CONFIGURATION_NAME",
+    # Special variables that may be used by gyp 'rule' targets.
+    # We generate definitions for these variables on the fly when processing a
+    # rule.
+    "RULE_INPUT_ROOT": "${root}",
+    "RULE_INPUT_DIRNAME": "${dirname}",
+    "RULE_INPUT_PATH": "${source}",
+    "RULE_INPUT_EXT": "${ext}",
+    "RULE_INPUT_NAME": "${name}",
+}
+
+# Placates pylint.
+generator_additional_non_configuration_keys = []
+generator_additional_path_sections = []
+generator_extra_sources_for_rules = []
+generator_filelist_paths = None
+
+generator_supports_multiple_toolsets = gyp.common.CrossCompileRequested()
+
+
+def StripPrefix(arg, prefix):
+    if arg.startswith(prefix):
+        return arg[len(prefix) :]
+    return arg
+
+
+def QuoteShellArgument(arg, flavor):
+    """Quote a string such that it will be interpreted as a single argument
+    by the shell."""
+    # Rather than attempting to enumerate the bad shell characters, just
+    # allow common OK ones and quote anything else.
+    if re.match(r"^[a-zA-Z0-9_=.\\/-]+$", arg):
+        return arg  # No quoting necessary.
+    if flavor == "win":
+        return gyp.msvs_emulation.QuoteForRspFile(arg)
+    return "'" + arg.replace("'", "'" + '"\'"' + "'") + "'"
+
+
+def Define(d, flavor):
+    """Takes a preprocessor define and returns a -D parameter that's ninja- and
+    shell-escaped."""
+    if flavor == "win":
+        # cl.exe replaces literal # characters with = in preprocessor definitions for
+        # some reason. Octal-encode to work around that.
+        d = d.replace("#", "\\%03o" % ord("#"))
+    return QuoteShellArgument(ninja_syntax.escape("-D" + d), flavor)
+
+
+def AddArch(output, arch):
+    """Adds an arch string to an output path."""
+    output, extension = os.path.splitext(output)
+    return f"{output}.{arch}{extension}"
+
+
+class Target:
+    """Target represents the paths used within a single gyp target.
+
+    Conceptually, building a single target A is a series of steps:
+
+    1) actions/rules/copies  generates source/resources/etc.
+    2) compiles              generates .o files
+    3) link                  generates a binary (library/executable)
+    4) bundle                merges the above in a mac bundle
+
+    (Any of these steps can be optional.)
+
+    From a build ordering perspective, a dependent target B could just
+    depend on the last output of this series of steps.
+
+    But some dependent commands sometimes need to reach inside the box.
+    For example, when linking B it needs to get the path to the static
+    library generated by A.
+
+    This object stores those paths.  To keep things simple, member
+    variables only store concrete paths to single files, while methods
+    compute derived values like "the last output of the target".
+    """
+
+    def __init__(self, type):
+        # Gyp type ("static_library", etc.) of this target.
+        self.type = type
+        # File representing whether any input dependencies necessary for
+        # dependent actions have completed.
+        self.preaction_stamp = None
+        # File representing whether any input dependencies necessary for
+        # dependent compiles have completed.
+        self.precompile_stamp = None
+        # File representing the completion of actions/rules/copies, if any.
+        self.actions_stamp = None
+        # Path to the output of the link step, if any.
+        self.binary = None
+        # Path to the file representing the completion of building the bundle,
+        # if any.
+        self.bundle = None
+        # On Windows, incremental linking requires linking against all the .objs
+        # that compose a .lib (rather than the .lib itself). That list is stored
+        # here. In this case, we also need to save the compile_deps for the target,
+        # so that the target that directly depends on the .objs can also depend
+        # on those.
+        self.component_objs = None
+        self.compile_deps = None
+        # Windows only. The import .lib is the output of a build step, but
+        # because dependents only link against the lib (not both the lib and the
+        # dll) we keep track of the import library here.
+        self.import_lib = None
+        # Track if this target contains any C++ files, to decide if gcc or g++
+        # should be used for linking.
+        self.uses_cpp = False
+
+    def Linkable(self):
+        """Return true if this is a target that can be linked against."""
+        return self.type in ("static_library", "shared_library")
+
+    def UsesToc(self, flavor):
+        """Return true if the target should produce a restat rule based on a TOC
+        file."""
+        # For bundles, the .TOC should be produced for the binary, not for
+        # FinalOutput(). But the naive approach would put the TOC file into the
+        # bundle, so don't do this for bundles for now.
+        if flavor == "win" or self.bundle:
+            return False
+        return self.type in ("shared_library", "loadable_module")
+
+    def PreActionInput(self, flavor):
+        """Return the path, if any, that should be used as a dependency of
+        any dependent action step."""
+        if self.UsesToc(flavor):
+            return self.FinalOutput() + ".TOC"
+        return self.FinalOutput() or self.preaction_stamp
+
+    def PreCompileInput(self):
+        """Return the path, if any, that should be used as a dependency of
+        any dependent compile step."""
+        return self.actions_stamp or self.precompile_stamp
+
+    def FinalOutput(self):
+        """Return the last output of the target, which depends on all prior
+        steps."""
+        return self.bundle or self.binary or self.actions_stamp
+
+
+# A small discourse on paths as used within the Ninja build:
+# All files we produce (both at gyp and at build time) appear in the
+# build directory (e.g. out/Debug).
+#
+# Paths within a given .gyp file are always relative to the directory
+# containing the .gyp file.  Call these "gyp paths".  This includes
+# sources as well as the starting directory a given gyp rule/action
+# expects to be run from.  We call the path from the source root to
+# the gyp file the "base directory" within the per-.gyp-file
+# NinjaWriter code.
+#
+# All paths as written into the .ninja files are relative to the build
+# directory.  Call these paths "ninja paths".
+#
+# We translate between these two notions of paths with two helper
+# functions:
+#
+# - GypPathToNinja translates a gyp path (i.e. relative to the .gyp file)
+#   into the equivalent ninja path.
+#
+# - GypPathToUniqueOutput translates a gyp path into a ninja path to write
+#   an output file; the result can be namespaced such that it is unique
+#   to the input file name as well as the output target name.
+
+
+class NinjaWriter:
+    def __init__(
+        self,
+        hash_for_rules,
+        target_outputs,
+        base_dir,
+        build_dir,
+        output_file,
+        toplevel_build,
+        output_file_name,
+        flavor,
+        toplevel_dir=None,
+    ):
+        """
+        base_dir: path from source root to directory containing this gyp file,
+                  by gyp semantics, all input paths are relative to this
+        build_dir: path from source root to build output
+        toplevel_dir: path to the toplevel directory
+        """
+
+        self.hash_for_rules = hash_for_rules
+        self.target_outputs = target_outputs
+        self.base_dir = base_dir
+        self.build_dir = build_dir
+        self.ninja = ninja_syntax.Writer(output_file)
+        self.toplevel_build = toplevel_build
+        self.output_file_name = output_file_name
+
+        self.flavor = flavor
+        self.abs_build_dir = None
+        if toplevel_dir is not None:
+            self.abs_build_dir = os.path.abspath(os.path.join(toplevel_dir, build_dir))
+        self.obj_ext = ".obj" if flavor == "win" else ".o"
+        if flavor == "win":
+            # See docstring of msvs_emulation.GenerateEnvironmentFiles().
+            self.win_env = {}
+            for arch in ("x86", "x64"):
+                self.win_env[arch] = "environment." + arch
+
+        # Relative path from build output dir to base dir.
+        build_to_top = gyp.common.InvertRelativePath(build_dir, toplevel_dir)
+        self.build_to_base = os.path.join(build_to_top, base_dir)
+        # Relative path from base dir to build dir.
+        base_to_top = gyp.common.InvertRelativePath(base_dir, toplevel_dir)
+        self.base_to_build = os.path.join(base_to_top, build_dir)
+
+    def ExpandSpecial(self, path, product_dir=None):
+        """Expand specials like $!PRODUCT_DIR in |path|.
+
+        If |product_dir| is None, assumes the cwd is already the product
+        dir.  Otherwise, |product_dir| is the relative path to the product
+        dir.
+        """
+
+        PRODUCT_DIR = "$!PRODUCT_DIR"
+        if PRODUCT_DIR in path:
+            if product_dir:
+                path = path.replace(PRODUCT_DIR, product_dir)
+            else:
+                path = path.replace(PRODUCT_DIR + "/", "")
+                path = path.replace(PRODUCT_DIR + "\\", "")
+                path = path.replace(PRODUCT_DIR, ".")
+
+        INTERMEDIATE_DIR = "$!INTERMEDIATE_DIR"
+        if INTERMEDIATE_DIR in path:
+            int_dir = self.GypPathToUniqueOutput("gen")
+            # GypPathToUniqueOutput generates a path relative to the product dir,
+            # so insert product_dir in front if it is provided.
+            path = path.replace(
+                INTERMEDIATE_DIR, os.path.join(product_dir or "", int_dir)
+            )
+
+        CONFIGURATION_NAME = "$|CONFIGURATION_NAME"
+        path = path.replace(CONFIGURATION_NAME, self.config_name)
+
+        return path
+
+    def ExpandRuleVariables(self, path, root, dirname, source, ext, name):
+        if self.flavor == "win":
+            path = self.msvs_settings.ConvertVSMacros(path, config=self.config_name)
+        path = path.replace(generator_default_variables["RULE_INPUT_ROOT"], root)
+        path = path.replace(generator_default_variables["RULE_INPUT_DIRNAME"], dirname)
+        path = path.replace(generator_default_variables["RULE_INPUT_PATH"], source)
+        path = path.replace(generator_default_variables["RULE_INPUT_EXT"], ext)
+        path = path.replace(generator_default_variables["RULE_INPUT_NAME"], name)
+        return path
+
+    def GypPathToNinja(self, path, env=None):
+        """Translate a gyp path to a ninja path, optionally expanding environment
+        variable references in |path| with |env|.
+
+        See the above discourse on path conversions."""
+        if env:
+            if self.flavor == "mac":
+                path = gyp.xcode_emulation.ExpandEnvVars(path, env)
+            elif self.flavor == "win":
+                path = gyp.msvs_emulation.ExpandMacros(path, env)
+        if path.startswith("$!"):
+            expanded = self.ExpandSpecial(path)
+            if self.flavor == "win":
+                expanded = os.path.normpath(expanded)
+            return expanded
+        if "$|" in path:
+            path = self.ExpandSpecial(path)
+        assert "$" not in path, path
+        return os.path.normpath(os.path.join(self.build_to_base, path))
+
+    def GypPathToUniqueOutput(self, path, qualified=True):
+        """Translate a gyp path to a ninja path for writing output.
+
+        If qualified is True, qualify the resulting filename with the name
+        of the target.  This is necessary when e.g. compiling the same
+        path twice for two separate output targets.
+
+        See the above discourse on path conversions."""
+
+        path = self.ExpandSpecial(path)
+        assert not path.startswith("$"), path
+
+        # Translate the path following this scheme:
+        #   Input: foo/bar.gyp, target targ, references baz/out.o
+        #   Output: obj/foo/baz/targ.out.o (if qualified)
+        #           obj/foo/baz/out.o (otherwise)
+        #     (and obj.host instead of obj for cross-compiles)
+        #
+        # Why this scheme and not some other one?
+        # 1) for a given input, you can compute all derived outputs by matching
+        #    its path, even if the input is brought via a gyp file with '..'.
+        # 2) simple files like libraries and stamps have a simple filename.
+
+        obj = "obj"
+        if self.toolset != "target":
+            obj += "." + self.toolset
+
+        path_dir, path_basename = os.path.split(path)
+        assert not os.path.isabs(path_dir), (
+            "'%s' can not be absolute path (see crbug.com/462153)." % path_dir
+        )
+
+        if qualified:
+            path_basename = self.name + "." + path_basename
+        return os.path.normpath(
+            os.path.join(obj, self.base_dir, path_dir, path_basename)
+        )
+
+    def WriteCollapsedDependencies(self, name, targets, order_only=None):
+        """Given a list of targets, return a path for a single file
+        representing the result of building all the targets or None.
+
+        Uses a stamp file if necessary."""
+
+        assert targets == [item for item in targets if item], targets
+        if len(targets) == 0:
+            assert not order_only
+            return None
+        if len(targets) > 1 or order_only:
+            stamp = self.GypPathToUniqueOutput(name + ".stamp")
+            targets = self.ninja.build(stamp, "stamp", targets, order_only=order_only)
+            self.ninja.newline()
+        return targets[0]
+
+    def _SubninjaNameForArch(self, arch):
+        output_file_base = os.path.splitext(self.output_file_name)[0]
+        return f"{output_file_base}.{arch}.ninja"
+
+    def WriteSpec(self, spec, config_name, generator_flags):
+        """The main entry point for NinjaWriter: write the build rules for a spec.
+
+        Returns a Target object, which represents the output paths for this spec.
+        Returns None if there are no outputs (e.g. a settings-only 'none' type
+        target)."""
+
+        self.config_name = config_name
+        self.name = spec["target_name"]
+        self.toolset = spec["toolset"]
+        config = spec["configurations"][config_name]
+        self.target = Target(spec["type"])
+        self.is_standalone_static_library = bool(
+            spec.get("standalone_static_library", 0)
+        )
+
+        self.target_rpath = generator_flags.get("target_rpath", r"\$$ORIGIN/lib/")
+
+        self.is_mac_bundle = gyp.xcode_emulation.IsMacBundle(self.flavor, spec)
+        self.xcode_settings = self.msvs_settings = None
+        if self.flavor == "mac":
+            self.xcode_settings = gyp.xcode_emulation.XcodeSettings(spec)
+            mac_toolchain_dir = generator_flags.get("mac_toolchain_dir", None)
+            if mac_toolchain_dir:
+                self.xcode_settings.mac_toolchain_dir = mac_toolchain_dir
+
+        if self.flavor == "win":
+            self.msvs_settings = gyp.msvs_emulation.MsvsSettings(spec, generator_flags)
+            arch = self.msvs_settings.GetArch(config_name)
+            self.ninja.variable("arch", self.win_env[arch])
+            self.ninja.variable("cc", "$cl_" + arch)
+            self.ninja.variable("cxx", "$cl_" + arch)
+            self.ninja.variable("cc_host", "$cl_" + arch)
+            self.ninja.variable("cxx_host", "$cl_" + arch)
+            self.ninja.variable("asm", "$ml_" + arch)
+
+        if self.flavor == "mac":
+            self.archs = self.xcode_settings.GetActiveArchs(config_name)
+            if len(self.archs) > 1:
+                self.arch_subninjas = {
+                    arch: ninja_syntax.Writer(
+                        OpenOutput(
+                            os.path.join(
+                                self.toplevel_build, self._SubninjaNameForArch(arch)
+                            ),
+                            "w",
+                        )
+                    )
+                    for arch in self.archs
+                }
+
+        # Compute predepends for all rules.
+        # actions_depends is the dependencies this target depends on before running
+        # any of its action/rule/copy steps.
+        # compile_depends is the dependencies this target depends on before running
+        # any of its compile steps.
+        actions_depends = []
+        compile_depends = []
+        # TODO(evan): it is rather confusing which things are lists and which
+        # are strings.  Fix these.
+        if "dependencies" in spec:
+            for dep in spec["dependencies"]:
+                if dep in self.target_outputs:
+                    target = self.target_outputs[dep]
+                    actions_depends.append(target.PreActionInput(self.flavor))
+                    compile_depends.append(target.PreCompileInput())
+                    if target.uses_cpp:
+                        self.target.uses_cpp = True
+            actions_depends = [item for item in actions_depends if item]
+            compile_depends = [item for item in compile_depends if item]
+            actions_depends = self.WriteCollapsedDependencies(
+                "actions_depends", actions_depends
+            )
+            compile_depends = self.WriteCollapsedDependencies(
+                "compile_depends", compile_depends
+            )
+            self.target.preaction_stamp = actions_depends
+            self.target.precompile_stamp = compile_depends
+
+        # Write out actions, rules, and copies.  These must happen before we
+        # compile any sources, so compute a list of predependencies for sources
+        # while we do it.
+        extra_sources = []
+        mac_bundle_depends = []
+        self.target.actions_stamp = self.WriteActionsRulesCopies(
+            spec, extra_sources, actions_depends, mac_bundle_depends
+        )
+
+        # If we have actions/rules/copies, we depend directly on those, but
+        # otherwise we depend on dependent target's actions/rules/copies etc.
+        # We never need to explicitly depend on previous target's link steps,
+        # because no compile ever depends on them.
+        compile_depends_stamp = self.target.actions_stamp or compile_depends
+
+        # Write out the compilation steps, if any.
+        link_deps = []
+        try:
+            sources = extra_sources + spec.get("sources", [])
+        except TypeError:
+            print("extra_sources: ", str(extra_sources))
+            print('spec.get("sources"): ', str(spec.get("sources")))
+            raise
+        if sources:
+            if self.flavor == "mac" and len(self.archs) > 1:
+                # Write subninja file containing compile and link commands scoped to
+                # a single arch if a fat binary is being built.
+                for arch in self.archs:
+                    self.ninja.subninja(self._SubninjaNameForArch(arch))
+
+            pch = None
+            if self.flavor == "win":
+                gyp.msvs_emulation.VerifyMissingSources(
+                    sources, self.abs_build_dir, generator_flags, self.GypPathToNinja
+                )
+                pch = gyp.msvs_emulation.PrecompiledHeader(
+                    self.msvs_settings,
+                    config_name,
+                    self.GypPathToNinja,
+                    self.GypPathToUniqueOutput,
+                    self.obj_ext,
+                )
+            else:
+                pch = gyp.xcode_emulation.MacPrefixHeader(
+                    self.xcode_settings,
+                    self.GypPathToNinja,
+                    lambda path, lang: self.GypPathToUniqueOutput(path + "-" + lang),
+                )
+            link_deps = self.WriteSources(
+                self.ninja,
+                config_name,
+                config,
+                sources,
+                compile_depends_stamp,
+                pch,
+                spec,
+            )
+            # Some actions/rules output 'sources' that are already object files.
+            obj_outputs = [f for f in sources if f.endswith(self.obj_ext)]
+            if obj_outputs:
+                if self.flavor != "mac" or len(self.archs) == 1:
+                    link_deps += [self.GypPathToNinja(o) for o in obj_outputs]
+                else:
+                    print(
+                        "Warning: Actions/rules writing object files don't work with "
+                        "multiarch targets, dropping. (target %s)" % spec["target_name"]
+                    )
+        elif self.flavor == "mac" and len(self.archs) > 1:
+            link_deps = collections.defaultdict(list)
+
+        compile_deps = self.target.actions_stamp or actions_depends
+        if self.flavor == "win" and self.target.type == "static_library":
+            self.target.component_objs = link_deps
+            self.target.compile_deps = compile_deps
+
+        # Write out a link step, if needed.
+        output = None
+        is_empty_bundle = not link_deps and not mac_bundle_depends
+        if link_deps or self.target.actions_stamp or actions_depends:
+            output = self.WriteTarget(
+                spec, config_name, config, link_deps, compile_deps
+            )
+            if self.is_mac_bundle:
+                mac_bundle_depends.append(output)
+
+        # Bundle all of the above together, if needed.
+        if self.is_mac_bundle:
+            output = self.WriteMacBundle(spec, mac_bundle_depends, is_empty_bundle)
+
+        if not output:
+            return None
+
+        assert self.target.FinalOutput(), output
+        return self.target
+
+    def _WinIdlRule(self, source, prebuild, outputs):
+        """Handle the implicit VS .idl rule for one source file. Fills |outputs|
+        with files that are generated."""
+        outdir, output, vars, flags = self.msvs_settings.GetIdlBuildData(
+            source, self.config_name
+        )
+        outdir = self.GypPathToNinja(outdir)
+
+        def fix_path(path, rel=None):
+            path = os.path.join(outdir, path)
+            dirname, basename = os.path.split(source)
+            root, ext = os.path.splitext(basename)
+            path = self.ExpandRuleVariables(path, root, dirname, source, ext, basename)
+            if rel:
+                path = os.path.relpath(path, rel)
+            return path
+
+        vars = [(name, fix_path(value, outdir)) for name, value in vars]
+        output = [fix_path(p) for p in output]
+        vars.append(("outdir", outdir))
+        vars.append(("idlflags", flags))
+        input = self.GypPathToNinja(source)
+        self.ninja.build(output, "idl", input, variables=vars, order_only=prebuild)
+        outputs.extend(output)
+
+    def WriteWinIdlFiles(self, spec, prebuild):
+        """Writes rules to match MSVS's implicit idl handling."""
+        assert self.flavor == "win"
+        if self.msvs_settings.HasExplicitIdlRulesOrActions(spec):
+            return []
+        outputs = []
+        for source in filter(lambda x: x.endswith(".idl"), spec["sources"]):
+            self._WinIdlRule(source, prebuild, outputs)
+        return outputs
+
+    def WriteActionsRulesCopies(
+        self, spec, extra_sources, prebuild, mac_bundle_depends
+    ):
+        """Write out the Actions, Rules, and Copies steps.  Return a path
+        representing the outputs of these steps."""
+        outputs = []
+        if self.is_mac_bundle:
+            mac_bundle_resources = spec.get("mac_bundle_resources", [])[:]
+        else:
+            mac_bundle_resources = []
+        extra_mac_bundle_resources = []
+
+        if "actions" in spec:
+            outputs += self.WriteActions(
+                spec["actions"], extra_sources, prebuild, extra_mac_bundle_resources
+            )
+        if "rules" in spec:
+            outputs += self.WriteRules(
+                spec["rules"],
+                extra_sources,
+                prebuild,
+                mac_bundle_resources,
+                extra_mac_bundle_resources,
+            )
+        if "copies" in spec:
+            outputs += self.WriteCopies(spec["copies"], prebuild, mac_bundle_depends)
+
+        if "sources" in spec and self.flavor == "win":
+            outputs += self.WriteWinIdlFiles(spec, prebuild)
+
+        if self.xcode_settings and self.xcode_settings.IsIosFramework():
+            self.WriteiOSFrameworkHeaders(spec, outputs, prebuild)
+
+        stamp = self.WriteCollapsedDependencies("actions_rules_copies", outputs)
+
+        if self.is_mac_bundle:
+            xcassets = self.WriteMacBundleResources(
+                extra_mac_bundle_resources + mac_bundle_resources, mac_bundle_depends
+            )
+            partial_info_plist = self.WriteMacXCassets(xcassets, mac_bundle_depends)
+            self.WriteMacInfoPlist(partial_info_plist, mac_bundle_depends)
+
+        return stamp
+
+    def GenerateDescription(self, verb, message, fallback):
+        """Generate and return a description of a build step.
+
+        |verb| is the short summary, e.g. ACTION or RULE.
+        |message| is a hand-written description, or None if not available.
+        |fallback| is the gyp-level name of the step, usable as a fallback.
+        """
+        if self.toolset != "target":
+            verb += "(%s)" % self.toolset
+        if message:
+            return f"{verb} {self.ExpandSpecial(message)}"
+        else:
+            return f"{verb} {self.name}: {fallback}"
+
+    def WriteActions(
+        self, actions, extra_sources, prebuild, extra_mac_bundle_resources
+    ):
+        # Actions cd into the base directory.
+        env = self.GetToolchainEnv()
+        all_outputs = []
+        for action in actions:
+            # First write out a rule for the action.
+            name = "{}_{}".format(action["action_name"], self.hash_for_rules)
+            description = self.GenerateDescription(
+                "ACTION", action.get("message", None), name
+            )
+            win_shell_flags = (
+                self.msvs_settings.GetRuleShellFlags(action)
+                if self.flavor == "win"
+                else None
+            )
+            args = action["action"]
+            depfile = action.get("depfile", None)
+            if depfile:
+                depfile = self.ExpandSpecial(depfile, self.base_to_build)
+            pool = "console" if int(action.get("ninja_use_console", 0)) else None
+            rule_name, _ = self.WriteNewNinjaRule(
+                name, args, description, win_shell_flags, env, pool, depfile=depfile
+            )
+
+            inputs = [self.GypPathToNinja(i, env) for i in action["inputs"]]
+            if int(action.get("process_outputs_as_sources", False)):
+                extra_sources += action["outputs"]
+            if int(action.get("process_outputs_as_mac_bundle_resources", False)):
+                extra_mac_bundle_resources += action["outputs"]
+            outputs = [self.GypPathToNinja(o, env) for o in action["outputs"]]
+
+            # Then write out an edge using the rule.
+            self.ninja.build(outputs, rule_name, inputs, order_only=prebuild)
+            all_outputs += outputs
+
+            self.ninja.newline()
+
+        return all_outputs
+
+    def WriteRules(
+        self,
+        rules,
+        extra_sources,
+        prebuild,
+        mac_bundle_resources,
+        extra_mac_bundle_resources,
+    ):
+        env = self.GetToolchainEnv()
+        all_outputs = []
+        for rule in rules:
+            # Skip a rule with no action and no inputs.
+            if "action" not in rule and not rule.get("rule_sources", []):
+                continue
+
+            # First write out a rule for the rule action.
+            name = "{}_{}".format(rule["rule_name"], self.hash_for_rules)
+
+            args = rule["action"]
+            description = self.GenerateDescription(
+                "RULE",
+                rule.get("message", None),
+                ("%s " + generator_default_variables["RULE_INPUT_PATH"]) % name,
+            )
+            win_shell_flags = (
+                self.msvs_settings.GetRuleShellFlags(rule)
+                if self.flavor == "win"
+                else None
+            )
+            pool = "console" if int(rule.get("ninja_use_console", 0)) else None
+            rule_name, args = self.WriteNewNinjaRule(
+                name, args, description, win_shell_flags, env, pool
+            )
+
+            # TODO: if the command references the outputs directly, we should
+            # simplify it to just use $out.
+
+            # Rules can potentially make use of some special variables which
+            # must vary per source file.
+            # Compute the list of variables we'll need to provide.
+            special_locals = ("source", "root", "dirname", "ext", "name")
+            needed_variables = {"source"}
+            for argument in args:
+                for var in special_locals:
+                    if "${%s}" % var in argument:
+                        needed_variables.add(var)
+            needed_variables = sorted(needed_variables)
+
+            def cygwin_munge(path):
+                # pylint: disable=cell-var-from-loop
+                if win_shell_flags and win_shell_flags.cygwin:
+                    return path.replace("\\", "/")
+                return path
+
+            inputs = [self.GypPathToNinja(i, env) for i in rule.get("inputs", [])]
+
+            # If there are n source files matching the rule, and m additional rule
+            # inputs, then adding 'inputs' to each build edge written below will
+            # write m * n inputs. Collapsing reduces this to m + n.
+            sources = rule.get("rule_sources", [])
+            num_inputs = len(inputs)
+            if prebuild:
+                num_inputs += 1
+            if num_inputs > 2 and len(sources) > 2:
+                inputs = [
+                    self.WriteCollapsedDependencies(
+                        rule["rule_name"], inputs, order_only=prebuild
+                    )
+                ]
+                prebuild = []
+
+            # For each source file, write an edge that generates all the outputs.
+            for source in sources:
+                source = os.path.normpath(source)
+                dirname, basename = os.path.split(source)
+                root, ext = os.path.splitext(basename)
+
+                # Gather the list of inputs and outputs, expanding $vars if possible.
+                outputs = [
+                    self.ExpandRuleVariables(o, root, dirname, source, ext, basename)
+                    for o in rule["outputs"]
+                ]
+
+                if int(rule.get("process_outputs_as_sources", False)):
+                    extra_sources += outputs
+
+                was_mac_bundle_resource = source in mac_bundle_resources
+                if was_mac_bundle_resource or int(
+                    rule.get("process_outputs_as_mac_bundle_resources", False)
+                ):
+                    extra_mac_bundle_resources += outputs
+                    # Note: This is n_resources * n_outputs_in_rule.
+                    # Put to-be-removed items in a set and
+                    # remove them all in a single pass
+                    # if this becomes a performance issue.
+                    if was_mac_bundle_resource:
+                        mac_bundle_resources.remove(source)
+
+                extra_bindings = []
+                for var in needed_variables:
+                    if var == "root":
+                        extra_bindings.append(("root", cygwin_munge(root)))
+                    elif var == "dirname":
+                        # '$dirname' is a parameter to the rule action, which means
+                        # it shouldn't be converted to a Ninja path.  But we don't
+                        # want $!PRODUCT_DIR in there either.
+                        dirname_expanded = self.ExpandSpecial(
+                            dirname, self.base_to_build
+                        )
+                        extra_bindings.append(
+                            ("dirname", cygwin_munge(dirname_expanded))
+                        )
+                    elif var == "source":
+                        # '$source' is a parameter to the rule action, which means
+                        # it shouldn't be converted to a Ninja path.  But we don't
+                        # want $!PRODUCT_DIR in there either.
+                        source_expanded = self.ExpandSpecial(source, self.base_to_build)
+                        extra_bindings.append(("source", cygwin_munge(source_expanded)))
+                    elif var == "ext":
+                        extra_bindings.append(("ext", ext))
+                    elif var == "name":
+                        extra_bindings.append(("name", cygwin_munge(basename)))
+                    else:
+                        assert var is None, repr(var)
+
+                outputs = [self.GypPathToNinja(o, env) for o in outputs]
+                if self.flavor == "win":
+                    # WriteNewNinjaRule uses unique_name to create a rsp file on win.
+                    extra_bindings.append(
+                        ("unique_name", hashlib.md5(outputs[0]).hexdigest())
+                    )
+
+                self.ninja.build(
+                    outputs,
+                    rule_name,
+                    self.GypPathToNinja(source),
+                    implicit=inputs,
+                    order_only=prebuild,
+                    variables=extra_bindings,
+                )
+
+                all_outputs.extend(outputs)
+
+        return all_outputs
+
+    def WriteCopies(self, copies, prebuild, mac_bundle_depends):
+        outputs = []
+        if self.xcode_settings:
+            extra_env = self.xcode_settings.GetPerTargetSettings()
+            env = self.GetToolchainEnv(additional_settings=extra_env)
+        else:
+            env = self.GetToolchainEnv()
+        for to_copy in copies:
+            for path in to_copy["files"]:
+                # Normalize the path so trailing slashes don't confuse us.
+                path = os.path.normpath(path)
+                basename = os.path.split(path)[1]
+                src = self.GypPathToNinja(path, env)
+                dst = self.GypPathToNinja(
+                    os.path.join(to_copy["destination"], basename), env
+                )
+                outputs += self.ninja.build(dst, "copy", src, order_only=prebuild)
+                if self.is_mac_bundle:
+                    # gyp has mac_bundle_resources to copy things into a bundle's
+                    # Resources folder, but there's no built-in way to copy files
+                    # to other places in the bundle.
+                    # Hence, some targets use copies for this.
+                    # Check if this file is copied into the current bundle,
+                    # and if so add it to the bundle depends so
+                    # that dependent targets get rebuilt if the copy input changes.
+                    if dst.startswith(
+                        self.xcode_settings.GetBundleContentsFolderPath()
+                    ):
+                        mac_bundle_depends.append(dst)
+
+        return outputs
+
+    def WriteiOSFrameworkHeaders(self, spec, outputs, prebuild):
+        """Prebuild steps to generate hmap files and copy headers to destination."""
+        framework = self.ComputeMacBundleOutput()
+        all_sources = spec["sources"]
+        copy_headers = spec["mac_framework_headers"]
+        output = self.GypPathToUniqueOutput("headers.hmap")
+        self.xcode_settings.header_map_path = output
+        all_headers = map(
+            self.GypPathToNinja, filter(lambda x: x.endswith(".h"), all_sources)
+        )
+        variables = [
+            ("framework", framework),
+            ("copy_headers", map(self.GypPathToNinja, copy_headers)),
+        ]
+        outputs.extend(
+            self.ninja.build(
+                output,
+                "compile_ios_framework_headers",
+                all_headers,
+                variables=variables,
+                order_only=prebuild,
+            )
+        )
+
+    def WriteMacBundleResources(self, resources, bundle_depends):
+        """Writes ninja edges for 'mac_bundle_resources'."""
+        xcassets = []
+
+        extra_env = self.xcode_settings.GetPerTargetSettings()
+        env = self.GetSortedXcodeEnv(additional_settings=extra_env)
+        env = self.ComputeExportEnvString(env)
+        isBinary = self.xcode_settings.IsBinaryOutputFormat(self.config_name)
+
+        for output, res in gyp.xcode_emulation.GetMacBundleResources(
+            generator_default_variables["PRODUCT_DIR"],
+            self.xcode_settings,
+            map(self.GypPathToNinja, resources),
+        ):
+            output = self.ExpandSpecial(output)
+            if os.path.splitext(output)[-1] != ".xcassets":
+                self.ninja.build(
+                    output,
+                    "mac_tool",
+                    res,
+                    variables=[
+                        ("mactool_cmd", "copy-bundle-resource"),
+                        ("env", env),
+                        ("binary", isBinary),
+                    ],
+                )
+                bundle_depends.append(output)
+            else:
+                xcassets.append(res)
+        return xcassets
+
+    def WriteMacXCassets(self, xcassets, bundle_depends):
+        """Writes ninja edges for 'mac_bundle_resources' .xcassets files.
+
+        This add an invocation of 'actool' via the 'mac_tool.py' helper script.
+        It assumes that the assets catalogs define at least one imageset and
+        thus an Assets.car file will be generated in the application resources
+        directory. If this is not the case, then the build will probably be done
+        at each invocation of ninja."""
+        if not xcassets:
+            return
+
+        extra_arguments = {}
+        settings_to_arg = {
+            "XCASSETS_APP_ICON": "app-icon",
+            "XCASSETS_LAUNCH_IMAGE": "launch-image",
+        }
+        settings = self.xcode_settings.xcode_settings[self.config_name]
+        for settings_key, arg_name in settings_to_arg.items():
+            value = settings.get(settings_key)
+            if value:
+                extra_arguments[arg_name] = value
+
+        partial_info_plist = None
+        if extra_arguments:
+            partial_info_plist = self.GypPathToUniqueOutput(
+                "assetcatalog_generated_info.plist"
+            )
+            extra_arguments["output-partial-info-plist"] = partial_info_plist
+
+        outputs = []
+        outputs.append(
+            os.path.join(self.xcode_settings.GetBundleResourceFolder(), "Assets.car")
+        )
+        if partial_info_plist:
+            outputs.append(partial_info_plist)
+
+        keys = QuoteShellArgument(json.dumps(extra_arguments), self.flavor)
+        extra_env = self.xcode_settings.GetPerTargetSettings()
+        env = self.GetSortedXcodeEnv(additional_settings=extra_env)
+        env = self.ComputeExportEnvString(env)
+
+        bundle_depends.extend(
+            self.ninja.build(
+                outputs,
+                "compile_xcassets",
+                xcassets,
+                variables=[("env", env), ("keys", keys)],
+            )
+        )
+        return partial_info_plist
+
+    def WriteMacInfoPlist(self, partial_info_plist, bundle_depends):
+        """Write build rules for bundle Info.plist files."""
+        info_plist, out, defines, extra_env = gyp.xcode_emulation.GetMacInfoPlist(
+            generator_default_variables["PRODUCT_DIR"],
+            self.xcode_settings,
+            self.GypPathToNinja,
+        )
+        if not info_plist:
+            return
+        out = self.ExpandSpecial(out)
+        if defines:
+            # Create an intermediate file to store preprocessed results.
+            intermediate_plist = self.GypPathToUniqueOutput(
+                os.path.basename(info_plist)
+            )
+            defines = " ".join([Define(d, self.flavor) for d in defines])
+            info_plist = self.ninja.build(
+                intermediate_plist,
+                "preprocess_infoplist",
+                info_plist,
+                variables=[("defines", defines)],
+            )
+
+        env = self.GetSortedXcodeEnv(additional_settings=extra_env)
+        env = self.ComputeExportEnvString(env)
+
+        if partial_info_plist:
+            intermediate_plist = self.GypPathToUniqueOutput("merged_info.plist")
+            info_plist = self.ninja.build(
+                intermediate_plist, "merge_infoplist", [partial_info_plist, info_plist]
+            )
+
+        keys = self.xcode_settings.GetExtraPlistItems(self.config_name)
+        keys = QuoteShellArgument(json.dumps(keys), self.flavor)
+        isBinary = self.xcode_settings.IsBinaryOutputFormat(self.config_name)
+        self.ninja.build(
+            out,
+            "copy_infoplist",
+            info_plist,
+            variables=[("env", env), ("keys", keys), ("binary", isBinary)],
+        )
+        bundle_depends.append(out)
+
+    def WriteSources(
+        self,
+        ninja_file,
+        config_name,
+        config,
+        sources,
+        predepends,
+        precompiled_header,
+        spec,
+    ):
+        """Write build rules to compile all of |sources|."""
+        if self.toolset == "host":
+            self.ninja.variable("ar", "$ar_host")
+            self.ninja.variable("cc", "$cc_host")
+            self.ninja.variable("cxx", "$cxx_host")
+            self.ninja.variable("ld", "$ld_host")
+            self.ninja.variable("ldxx", "$ldxx_host")
+            self.ninja.variable("nm", "$nm_host")
+            self.ninja.variable("readelf", "$readelf_host")
+
+        if self.flavor != "mac" or len(self.archs) == 1:
+            return self.WriteSourcesForArch(
+                self.ninja,
+                config_name,
+                config,
+                sources,
+                predepends,
+                precompiled_header,
+                spec,
+            )
+        else:
+            return {
+                arch: self.WriteSourcesForArch(
+                    self.arch_subninjas[arch],
+                    config_name,
+                    config,
+                    sources,
+                    predepends,
+                    precompiled_header,
+                    spec,
+                    arch=arch,
+                )
+                for arch in self.archs
+            }
+
+    def WriteSourcesForArch(
+        self,
+        ninja_file,
+        config_name,
+        config,
+        sources,
+        predepends,
+        precompiled_header,
+        spec,
+        arch=None,
+    ):
+        """Write build rules to compile all of |sources|."""
+
+        extra_defines = []
+        if self.flavor == "mac":
+            cflags = self.xcode_settings.GetCflags(config_name, arch=arch)
+            cflags_c = self.xcode_settings.GetCflagsC(config_name)
+            cflags_cc = self.xcode_settings.GetCflagsCC(config_name)
+            cflags_objc = ["$cflags_c"] + self.xcode_settings.GetCflagsObjC(config_name)
+            cflags_objcc = ["$cflags_cc"] + self.xcode_settings.GetCflagsObjCC(
+                config_name
+            )
+        elif self.flavor == "win":
+            asmflags = self.msvs_settings.GetAsmflags(config_name)
+            cflags = self.msvs_settings.GetCflags(config_name)
+            cflags_c = self.msvs_settings.GetCflagsC(config_name)
+            cflags_cc = self.msvs_settings.GetCflagsCC(config_name)
+            extra_defines = self.msvs_settings.GetComputedDefines(config_name)
+            # See comment at cc_command for why there's two .pdb files.
+            pdbpath_c = pdbpath_cc = self.msvs_settings.GetCompilerPdbName(
+                config_name, self.ExpandSpecial
+            )
+            if not pdbpath_c:
+                obj = "obj"
+                if self.toolset != "target":
+                    obj += "." + self.toolset
+                pdbpath = os.path.normpath(os.path.join(obj, self.base_dir, self.name))
+                pdbpath_c = pdbpath + ".c.pdb"
+                pdbpath_cc = pdbpath + ".cc.pdb"
+            self.WriteVariableList(ninja_file, "pdbname_c", [pdbpath_c])
+            self.WriteVariableList(ninja_file, "pdbname_cc", [pdbpath_cc])
+            self.WriteVariableList(ninja_file, "pchprefix", [self.name])
+        else:
+            cflags = config.get("cflags", [])
+            cflags_c = config.get("cflags_c", [])
+            cflags_cc = config.get("cflags_cc", [])
+
+        # Respect environment variables related to build, but target-specific
+        # flags can still override them.
+        if self.toolset == "target":
+            cflags_c = (
+                os.environ.get("CPPFLAGS", "").split()
+                + os.environ.get("CFLAGS", "").split()
+                + cflags_c
+            )
+            cflags_cc = (
+                os.environ.get("CPPFLAGS", "").split()
+                + os.environ.get("CXXFLAGS", "").split()
+                + cflags_cc
+            )
+        elif self.toolset == "host":
+            cflags_c = (
+                os.environ.get("CPPFLAGS_host", "").split()
+                + os.environ.get("CFLAGS_host", "").split()
+                + cflags_c
+            )
+            cflags_cc = (
+                os.environ.get("CPPFLAGS_host", "").split()
+                + os.environ.get("CXXFLAGS_host", "").split()
+                + cflags_cc
+            )
+
+        defines = config.get("defines", []) + extra_defines
+        self.WriteVariableList(
+            ninja_file, "defines", [Define(d, self.flavor) for d in defines]
+        )
+        if self.flavor == "win":
+            self.WriteVariableList(
+                ninja_file, "asmflags", map(self.ExpandSpecial, asmflags)
+            )
+            self.WriteVariableList(
+                ninja_file,
+                "rcflags",
+                [
+                    QuoteShellArgument(self.ExpandSpecial(f), self.flavor)
+                    for f in self.msvs_settings.GetRcflags(
+                        config_name, self.GypPathToNinja
+                    )
+                ],
+            )
+
+        include_dirs = config.get("include_dirs", [])
+
+        env = self.GetToolchainEnv()
+        if self.flavor == "win":
+            include_dirs = self.msvs_settings.AdjustIncludeDirs(
+                include_dirs, config_name
+            )
+        self.WriteVariableList(
+            ninja_file,
+            "includes",
+            [
+                QuoteShellArgument("-I" + self.GypPathToNinja(i, env), self.flavor)
+                for i in include_dirs
+            ],
+        )
+
+        if self.flavor == "win":
+            midl_include_dirs = config.get("midl_include_dirs", [])
+            midl_include_dirs = self.msvs_settings.AdjustMidlIncludeDirs(
+                midl_include_dirs, config_name
+            )
+            self.WriteVariableList(
+                ninja_file,
+                "midl_includes",
+                [
+                    QuoteShellArgument("-I" + self.GypPathToNinja(i, env), self.flavor)
+                    for i in midl_include_dirs
+                ],
+            )
+
+        pch_commands = precompiled_header.GetPchBuildCommands(arch)
+        if self.flavor == "mac":
+            # Most targets use no precompiled headers, so only write these if needed.
+            for ext, var in [
+                ("c", "cflags_pch_c"),
+                ("cc", "cflags_pch_cc"),
+                ("m", "cflags_pch_objc"),
+                ("mm", "cflags_pch_objcc"),
+            ]:
+                include = precompiled_header.GetInclude(ext, arch)
+                if include:
+                    ninja_file.variable(var, include)
+
+        arflags = config.get("arflags", [])
+
+        self.WriteVariableList(ninja_file, "cflags", map(self.ExpandSpecial, cflags))
+        self.WriteVariableList(
+            ninja_file, "cflags_c", map(self.ExpandSpecial, cflags_c)
+        )
+        self.WriteVariableList(
+            ninja_file, "cflags_cc", map(self.ExpandSpecial, cflags_cc)
+        )
+        if self.flavor == "mac":
+            self.WriteVariableList(
+                ninja_file, "cflags_objc", map(self.ExpandSpecial, cflags_objc)
+            )
+            self.WriteVariableList(
+                ninja_file, "cflags_objcc", map(self.ExpandSpecial, cflags_objcc)
+            )
+        self.WriteVariableList(ninja_file, "arflags", map(self.ExpandSpecial, arflags))
+        ninja_file.newline()
+        outputs = []
+        has_rc_source = False
+        for source in sources:
+            filename, ext = os.path.splitext(source)
+            ext = ext[1:]
+            obj_ext = self.obj_ext
+            if ext in ("cc", "cpp", "cxx"):
+                command = "cxx"
+                self.target.uses_cpp = True
+            elif ext == "c" or (ext == "S" and self.flavor != "win"):
+                command = "cc"
+            elif ext == "s" and self.flavor != "win":  # Doesn't generate .o.d files.
+                command = "cc_s"
+            elif (
+                self.flavor == "win"
+                and ext in ("asm", "S")
+                and not self.msvs_settings.HasExplicitAsmRules(spec)
+            ):
+                command = "asm"
+                # Add the _asm suffix as msvs is capable of handling .cc and
+                # .asm files of the same name without collision.
+                obj_ext = "_asm.obj"
+            elif self.flavor == "mac" and ext == "m":
+                command = "objc"
+            elif self.flavor == "mac" and ext == "mm":
+                command = "objcxx"
+                self.target.uses_cpp = True
+            elif self.flavor == "win" and ext == "rc":
+                command = "rc"
+                obj_ext = ".res"
+                has_rc_source = True
+            else:
+                # Ignore unhandled extensions.
+                continue
+            input = self.GypPathToNinja(source)
+            output = self.GypPathToUniqueOutput(filename + obj_ext)
+            if arch is not None:
+                output = AddArch(output, arch)
+            implicit = precompiled_header.GetObjDependencies([input], [output], arch)
+            variables = []
+            if self.flavor == "win":
+                variables, output, implicit = precompiled_header.GetFlagsModifications(
+                    input,
+                    output,
+                    implicit,
+                    command,
+                    cflags_c,
+                    cflags_cc,
+                    self.ExpandSpecial,
+                )
+            ninja_file.build(
+                output,
+                command,
+                input,
+                implicit=[gch for _, _, gch in implicit],
+                order_only=predepends,
+                variables=variables,
+            )
+            outputs.append(output)
+
+        if has_rc_source:
+            resource_include_dirs = config.get("resource_include_dirs", include_dirs)
+            self.WriteVariableList(
+                ninja_file,
+                "resource_includes",
+                [
+                    QuoteShellArgument("-I" + self.GypPathToNinja(i, env), self.flavor)
+                    for i in resource_include_dirs
+                ],
+            )
+
+        self.WritePchTargets(ninja_file, pch_commands)
+
+        ninja_file.newline()
+        return outputs
+
+    def WritePchTargets(self, ninja_file, pch_commands):
+        """Writes ninja rules to compile prefix headers."""
+        if not pch_commands:
+            return
+
+        for gch, lang_flag, lang, input in pch_commands:
+            var_name = {
+                "c": "cflags_pch_c",
+                "cc": "cflags_pch_cc",
+                "m": "cflags_pch_objc",
+                "mm": "cflags_pch_objcc",
+            }[lang]
+
+            map = {
+                "c": "cc",
+                "cc": "cxx",
+                "m": "objc",
+                "mm": "objcxx",
+            }
+            cmd = map.get(lang)
+            ninja_file.build(gch, cmd, input, variables=[(var_name, lang_flag)])
+
+    def WriteLink(self, spec, config_name, config, link_deps, compile_deps):
+        """Write out a link step. Fills out target.binary. """
+        if self.flavor != "mac" or len(self.archs) == 1:
+            return self.WriteLinkForArch(
+                self.ninja, spec, config_name, config, link_deps, compile_deps
+            )
+        else:
+            output = self.ComputeOutput(spec)
+            inputs = [
+                self.WriteLinkForArch(
+                    self.arch_subninjas[arch],
+                    spec,
+                    config_name,
+                    config,
+                    link_deps[arch],
+                    compile_deps,
+                    arch=arch,
+                )
+                for arch in self.archs
+            ]
+            extra_bindings = []
+            build_output = output
+            if not self.is_mac_bundle:
+                self.AppendPostbuildVariable(extra_bindings, spec, output, output)
+
+            # TODO(yyanagisawa): more work needed to fix:
+            # https://code.google.com/p/gyp/issues/detail?id=411
+            if (
+                spec["type"] in ("shared_library", "loadable_module")
+                and not self.is_mac_bundle
+            ):
+                extra_bindings.append(("lib", output))
+                self.ninja.build(
+                    [output, output + ".TOC"],
+                    "solipo",
+                    inputs,
+                    variables=extra_bindings,
+                )
+            else:
+                self.ninja.build(build_output, "lipo", inputs, variables=extra_bindings)
+            return output
+
+    def WriteLinkForArch(
+        self, ninja_file, spec, config_name, config, link_deps, compile_deps, arch=None
+    ):
+        """Write out a link step. Fills out target.binary. """
+        command = {
+            "executable": "link",
+            "loadable_module": "solink_module",
+            "shared_library": "solink",
+        }[spec["type"]]
+        command_suffix = ""
+
+        implicit_deps = set()
+        solibs = set()
+        order_deps = set()
+
+        if compile_deps:
+            # Normally, the compiles of the target already depend on compile_deps,
+            # but a shared_library target might have no sources and only link together
+            # a few static_library deps, so the link step also needs to depend
+            # on compile_deps to make sure actions in the shared_library target
+            # get run before the link.
+            order_deps.add(compile_deps)
+
+        if "dependencies" in spec:
+            # Two kinds of dependencies:
+            # - Linkable dependencies (like a .a or a .so): add them to the link line.
+            # - Non-linkable dependencies (like a rule that generates a file
+            #   and writes a stamp file): add them to implicit_deps
+            extra_link_deps = set()
+            for dep in spec["dependencies"]:
+                target = self.target_outputs.get(dep)
+                if not target:
+                    continue
+                linkable = target.Linkable()
+                if linkable:
+                    new_deps = []
+                    if (
+                        self.flavor == "win"
+                        and target.component_objs
+                        and self.msvs_settings.IsUseLibraryDependencyInputs(config_name)
+                    ):
+                        new_deps = target.component_objs
+                        if target.compile_deps:
+                            order_deps.add(target.compile_deps)
+                    elif self.flavor == "win" and target.import_lib:
+                        new_deps = [target.import_lib]
+                    elif target.UsesToc(self.flavor):
+                        solibs.add(target.binary)
+                        implicit_deps.add(target.binary + ".TOC")
+                    else:
+                        new_deps = [target.binary]
+                    for new_dep in new_deps:
+                        if new_dep not in extra_link_deps:
+                            extra_link_deps.add(new_dep)
+                            link_deps.append(new_dep)
+
+                final_output = target.FinalOutput()
+                if not linkable or final_output != target.binary:
+                    implicit_deps.add(final_output)
+
+        extra_bindings = []
+        if self.target.uses_cpp and self.flavor != "win":
+            extra_bindings.append(("ld", "$ldxx"))
+
+        output = self.ComputeOutput(spec, arch)
+        if arch is None and not self.is_mac_bundle:
+            self.AppendPostbuildVariable(extra_bindings, spec, output, output)
+
+        is_executable = spec["type"] == "executable"
+        # The ldflags config key is not used on mac or win. On those platforms
+        # linker flags are set via xcode_settings and msvs_settings, respectively.
+        if self.toolset == "target":
+            env_ldflags = os.environ.get("LDFLAGS", "").split()
+        elif self.toolset == "host":
+            env_ldflags = os.environ.get("LDFLAGS_host", "").split()
+
+        if self.flavor == "mac":
+            ldflags = self.xcode_settings.GetLdflags(
+                config_name,
+                self.ExpandSpecial(generator_default_variables["PRODUCT_DIR"]),
+                self.GypPathToNinja,
+                arch,
+            )
+            ldflags = env_ldflags + ldflags
+        elif self.flavor == "win":
+            manifest_base_name = self.GypPathToUniqueOutput(
+                self.ComputeOutputFileName(spec)
+            )
+            (
+                ldflags,
+                intermediate_manifest,
+                manifest_files,
+            ) = self.msvs_settings.GetLdflags(
+                config_name,
+                self.GypPathToNinja,
+                self.ExpandSpecial,
+                manifest_base_name,
+                output,
+                is_executable,
+                self.toplevel_build,
+            )
+            ldflags = env_ldflags + ldflags
+            self.WriteVariableList(ninja_file, "manifests", manifest_files)
+            implicit_deps = implicit_deps.union(manifest_files)
+            if intermediate_manifest:
+                self.WriteVariableList(
+                    ninja_file, "intermediatemanifest", [intermediate_manifest]
+                )
+            command_suffix = _GetWinLinkRuleNameSuffix(
+                self.msvs_settings.IsEmbedManifest(config_name)
+            )
+            def_file = self.msvs_settings.GetDefFile(self.GypPathToNinja)
+            if def_file:
+                implicit_deps.add(def_file)
+        else:
+            # Respect environment variables related to build, but target-specific
+            # flags can still override them.
+            ldflags = env_ldflags + config.get("ldflags", [])
+            if is_executable and len(solibs):
+                rpath = "lib/"
+                if self.toolset != "target":
+                    rpath += self.toolset
+                    ldflags.append(r"-Wl,-rpath=\$$ORIGIN/%s" % rpath)
+                else:
+                    ldflags.append("-Wl,-rpath=%s" % self.target_rpath)
+                ldflags.append("-Wl,-rpath-link=%s" % rpath)
+        self.WriteVariableList(ninja_file, "ldflags", map(self.ExpandSpecial, ldflags))
+
+        library_dirs = config.get("library_dirs", [])
+        if self.flavor == "win":
+            library_dirs = [
+                self.msvs_settings.ConvertVSMacros(library_dir, config_name)
+                for library_dir in library_dirs
+            ]
+            library_dirs = [
+                "/LIBPATH:"
+                + QuoteShellArgument(self.GypPathToNinja(library_dir), self.flavor)
+                for library_dir in library_dirs
+            ]
+        else:
+            library_dirs = [
+                QuoteShellArgument("-L" + self.GypPathToNinja(library_dir), self.flavor)
+                for library_dir in library_dirs
+            ]
+
+        libraries = gyp.common.uniquer(
+            map(self.ExpandSpecial, spec.get("libraries", []))
+        )
+        if self.flavor == "mac":
+            libraries = self.xcode_settings.AdjustLibraries(libraries, config_name)
+        elif self.flavor == "win":
+            libraries = self.msvs_settings.AdjustLibraries(libraries)
+
+        self.WriteVariableList(ninja_file, "libs", library_dirs + libraries)
+
+        linked_binary = output
+
+        if command in ("solink", "solink_module"):
+            extra_bindings.append(("soname", os.path.split(output)[1]))
+            extra_bindings.append(("lib", gyp.common.EncodePOSIXShellArgument(output)))
+            if self.flavor != "win":
+                link_file_list = output
+                if self.is_mac_bundle:
+                    # 'Dependency Framework.framework/Versions/A/Dependency Framework'
+                    # -> 'Dependency Framework.framework.rsp'
+                    link_file_list = self.xcode_settings.GetWrapperName()
+                if arch:
+                    link_file_list += "." + arch
+                link_file_list += ".rsp"
+                # If an rspfile contains spaces, ninja surrounds the filename with
+                # quotes around it and then passes it to open(), creating a file with
+                # quotes in its name (and when looking for the rsp file, the name
+                # makes it through bash which strips the quotes) :-/
+                link_file_list = link_file_list.replace(" ", "_")
+                extra_bindings.append(
+                    (
+                        "link_file_list",
+                        gyp.common.EncodePOSIXShellArgument(link_file_list),
+                    )
+                )
+            if self.flavor == "win":
+                extra_bindings.append(("binary", output))
+                if (
+                    "/NOENTRY" not in ldflags
+                    and not self.msvs_settings.GetNoImportLibrary(config_name)
+                ):
+                    self.target.import_lib = output + ".lib"
+                    extra_bindings.append(
+                        ("implibflag", "/IMPLIB:%s" % self.target.import_lib)
+                    )
+                    pdbname = self.msvs_settings.GetPDBName(
+                        config_name, self.ExpandSpecial, output + ".pdb"
+                    )
+                    output = [output, self.target.import_lib]
+                    if pdbname:
+                        output.append(pdbname)
+            elif not self.is_mac_bundle:
+                output = [output, output + ".TOC"]
+            else:
+                command = command + "_notoc"
+        elif self.flavor == "win":
+            extra_bindings.append(("binary", output))
+            pdbname = self.msvs_settings.GetPDBName(
+                config_name, self.ExpandSpecial, output + ".pdb"
+            )
+            if pdbname:
+                output = [output, pdbname]
+
+        if len(solibs):
+            extra_bindings.append(
+                ("solibs", gyp.common.EncodePOSIXShellList(sorted(solibs)))
+            )
+
+        ninja_file.build(
+            output,
+            command + command_suffix,
+            link_deps,
+            implicit=sorted(implicit_deps),
+            order_only=list(order_deps),
+            variables=extra_bindings,
+        )
+        return linked_binary
+
+    def WriteTarget(self, spec, config_name, config, link_deps, compile_deps):
+        extra_link_deps = any(
+            self.target_outputs.get(dep).Linkable()
+            for dep in spec.get("dependencies", [])
+            if dep in self.target_outputs
+        )
+        if spec["type"] == "none" or (not link_deps and not extra_link_deps):
+            # TODO(evan): don't call this function for 'none' target types, as
+            # it doesn't do anything, and we fake out a 'binary' with a stamp file.
+            self.target.binary = compile_deps
+            self.target.type = "none"
+        elif spec["type"] == "static_library":
+            self.target.binary = self.ComputeOutput(spec)
+            if (
+                self.flavor not in ("mac", "openbsd", "netbsd", "win")
+                and not self.is_standalone_static_library
+            ):
+                self.ninja.build(
+                    self.target.binary, "alink_thin", link_deps, order_only=compile_deps
+                )
+            else:
+                variables = []
+                if self.xcode_settings:
+                    libtool_flags = self.xcode_settings.GetLibtoolflags(config_name)
+                    if libtool_flags:
+                        variables.append(("libtool_flags", libtool_flags))
+                if self.msvs_settings:
+                    libflags = self.msvs_settings.GetLibFlags(
+                        config_name, self.GypPathToNinja
+                    )
+                    variables.append(("libflags", libflags))
+
+                if self.flavor != "mac" or len(self.archs) == 1:
+                    self.AppendPostbuildVariable(
+                        variables, spec, self.target.binary, self.target.binary
+                    )
+                    self.ninja.build(
+                        self.target.binary,
+                        "alink",
+                        link_deps,
+                        order_only=compile_deps,
+                        variables=variables,
+                    )
+                else:
+                    inputs = []
+                    for arch in self.archs:
+                        output = self.ComputeOutput(spec, arch)
+                        self.arch_subninjas[arch].build(
+                            output,
+                            "alink",
+                            link_deps[arch],
+                            order_only=compile_deps,
+                            variables=variables,
+                        )
+                        inputs.append(output)
+                    # TODO: It's not clear if
+                    # libtool_flags should be passed to the alink
+                    # call that combines single-arch .a files into a fat .a file.
+                    self.AppendPostbuildVariable(
+                        variables, spec, self.target.binary, self.target.binary
+                    )
+                    self.ninja.build(
+                        self.target.binary,
+                        "alink",
+                        inputs,
+                        # FIXME: test proving order_only=compile_deps isn't
+                        # needed.
+                        variables=variables,
+                    )
+        else:
+            self.target.binary = self.WriteLink(
+                spec, config_name, config, link_deps, compile_deps
+            )
+        return self.target.binary
+
+    def WriteMacBundle(self, spec, mac_bundle_depends, is_empty):
+        assert self.is_mac_bundle
+        package_framework = spec["type"] in ("shared_library", "loadable_module")
+        output = self.ComputeMacBundleOutput()
+        if is_empty:
+            output += ".stamp"
+        variables = []
+        self.AppendPostbuildVariable(
+            variables,
+            spec,
+            output,
+            self.target.binary,
+            is_command_start=not package_framework,
+        )
+        if package_framework and not is_empty:
+            if spec["type"] == "shared_library" and self.xcode_settings.isIOS:
+                self.ninja.build(
+                    output,
+                    "package_ios_framework",
+                    mac_bundle_depends,
+                    variables=variables,
+                )
+            else:
+                variables.append(("version", self.xcode_settings.GetFrameworkVersion()))
+                self.ninja.build(
+                    output, "package_framework", mac_bundle_depends, variables=variables
+                )
+        else:
+            self.ninja.build(output, "stamp", mac_bundle_depends, variables=variables)
+        self.target.bundle = output
+        return output
+
+    def GetToolchainEnv(self, additional_settings=None):
+        """Returns the variables toolchain would set for build steps."""
+        env = self.GetSortedXcodeEnv(additional_settings=additional_settings)
+        if self.flavor == "win":
+            env = self.GetMsvsToolchainEnv(additional_settings=additional_settings)
+        return env
+
+    def GetMsvsToolchainEnv(self, additional_settings=None):
+        """Returns the variables Visual Studio would set for build steps."""
+        return self.msvs_settings.GetVSMacroEnv(
+            "$!PRODUCT_DIR", config=self.config_name
+        )
+
+    def GetSortedXcodeEnv(self, additional_settings=None):
+        """Returns the variables Xcode would set for build steps."""
+        assert self.abs_build_dir
+        abs_build_dir = self.abs_build_dir
+        return gyp.xcode_emulation.GetSortedXcodeEnv(
+            self.xcode_settings,
+            abs_build_dir,
+            os.path.join(abs_build_dir, self.build_to_base),
+            self.config_name,
+            additional_settings,
+        )
+
+    def GetSortedXcodePostbuildEnv(self):
+        """Returns the variables Xcode would set for postbuild steps."""
+        postbuild_settings = {}
+        # CHROMIUM_STRIP_SAVE_FILE is a chromium-specific hack.
+        # TODO(thakis): It would be nice to have some general mechanism instead.
+        strip_save_file = self.xcode_settings.GetPerTargetSetting(
+            "CHROMIUM_STRIP_SAVE_FILE"
+        )
+        if strip_save_file:
+            postbuild_settings["CHROMIUM_STRIP_SAVE_FILE"] = strip_save_file
+        return self.GetSortedXcodeEnv(additional_settings=postbuild_settings)
+
+    def AppendPostbuildVariable(
+        self, variables, spec, output, binary, is_command_start=False
+    ):
+        """Adds a 'postbuild' variable if there is a postbuild for |output|."""
+        postbuild = self.GetPostbuildCommand(spec, output, binary, is_command_start)
+        if postbuild:
+            variables.append(("postbuilds", postbuild))
+
+    def GetPostbuildCommand(self, spec, output, output_binary, is_command_start):
+        """Returns a shell command that runs all the postbuilds, and removes
+        |output| if any of them fails. If |is_command_start| is False, then the
+        returned string will start with ' && '."""
+        if not self.xcode_settings or spec["type"] == "none" or not output:
+            return ""
+        output = QuoteShellArgument(output, self.flavor)
+        postbuilds = gyp.xcode_emulation.GetSpecPostbuildCommands(spec, quiet=True)
+        if output_binary is not None:
+            postbuilds = self.xcode_settings.AddImplicitPostbuilds(
+                self.config_name,
+                os.path.normpath(os.path.join(self.base_to_build, output)),
+                QuoteShellArgument(
+                    os.path.normpath(os.path.join(self.base_to_build, output_binary)),
+                    self.flavor,
+                ),
+                postbuilds,
+                quiet=True,
+            )
+
+        if not postbuilds:
+            return ""
+        # Postbuilds expect to be run in the gyp file's directory, so insert an
+        # implicit postbuild to cd to there.
+        postbuilds.insert(
+            0, gyp.common.EncodePOSIXShellList(["cd", self.build_to_base])
+        )
+        env = self.ComputeExportEnvString(self.GetSortedXcodePostbuildEnv())
+        # G will be non-null if any postbuild fails. Run all postbuilds in a
+        # subshell.
+        commands = (
+            env
+            + " ("
+            + " && ".join([ninja_syntax.escape(command) for command in postbuilds])
+        )
+        command_string = (
+            commands
+            + "); G=$$?; "
+            # Remove the final output if any postbuild failed.
+            "((exit $$G) || rm -rf %s) " % output
+            + "&& exit $$G)"
+        )
+        if is_command_start:
+            return "(" + command_string + " && "
+        else:
+            return "$ && (" + command_string
+
+    def ComputeExportEnvString(self, env):
+        """Given an environment, returns a string looking like
+            'export FOO=foo; export BAR="${FOO} bar;'
+        that exports |env| to the shell."""
+        export_str = []
+        for k, v in env:
+            export_str.append(
+                "export %s=%s;"
+                % (k, ninja_syntax.escape(gyp.common.EncodePOSIXShellArgument(v)))
+            )
+        return " ".join(export_str)
+
+    def ComputeMacBundleOutput(self):
+        """Return the 'output' (full output path) to a bundle output directory."""
+        assert self.is_mac_bundle
+        path = generator_default_variables["PRODUCT_DIR"]
+        return self.ExpandSpecial(
+            os.path.join(path, self.xcode_settings.GetWrapperName())
+        )
+
+    def ComputeOutputFileName(self, spec, type=None):
+        """Compute the filename of the final output for the current target."""
+        if not type:
+            type = spec["type"]
+
+        default_variables = copy.copy(generator_default_variables)
+        CalculateVariables(default_variables, {"flavor": self.flavor})
+
+        # Compute filename prefix: the product prefix, or a default for
+        # the product type.
+        DEFAULT_PREFIX = {
+            "loadable_module": default_variables["SHARED_LIB_PREFIX"],
+            "shared_library": default_variables["SHARED_LIB_PREFIX"],
+            "static_library": default_variables["STATIC_LIB_PREFIX"],
+            "executable": default_variables["EXECUTABLE_PREFIX"],
+        }
+        prefix = spec.get("product_prefix", DEFAULT_PREFIX.get(type, ""))
+
+        # Compute filename extension: the product extension, or a default
+        # for the product type.
+        DEFAULT_EXTENSION = {
+            "loadable_module": default_variables["SHARED_LIB_SUFFIX"],
+            "shared_library": default_variables["SHARED_LIB_SUFFIX"],
+            "static_library": default_variables["STATIC_LIB_SUFFIX"],
+            "executable": default_variables["EXECUTABLE_SUFFIX"],
+        }
+        extension = spec.get("product_extension")
+        if extension:
+            extension = "." + extension
+        else:
+            extension = DEFAULT_EXTENSION.get(type, "")
+
+        if "product_name" in spec:
+            # If we were given an explicit name, use that.
+            target = spec["product_name"]
+        else:
+            # Otherwise, derive a name from the target name.
+            target = spec["target_name"]
+            if prefix == "lib":
+                # Snip out an extra 'lib' from libs if appropriate.
+                target = StripPrefix(target, "lib")
+
+        if type in (
+            "static_library",
+            "loadable_module",
+            "shared_library",
+            "executable",
+        ):
+            return f"{prefix}{target}{extension}"
+        elif type == "none":
+            return "%s.stamp" % target
+        else:
+            raise Exception("Unhandled output type %s" % type)
+
+    def ComputeOutput(self, spec, arch=None):
+        """Compute the path for the final output of the spec."""
+        type = spec["type"]
+
+        if self.flavor == "win":
+            override = self.msvs_settings.GetOutputName(
+                self.config_name, self.ExpandSpecial
+            )
+            if override:
+                return override
+
+        if (
+            arch is None
+            and self.flavor == "mac"
+            and type
+            in ("static_library", "executable", "shared_library", "loadable_module")
+        ):
+            filename = self.xcode_settings.GetExecutablePath()
+        else:
+            filename = self.ComputeOutputFileName(spec, type)
+
+        if arch is None and "product_dir" in spec:
+            path = os.path.join(spec["product_dir"], filename)
+            return self.ExpandSpecial(path)
+
+        # Some products go into the output root, libraries go into shared library
+        # dir, and everything else goes into the normal place.
+        type_in_output_root = ["executable", "loadable_module"]
+        if self.flavor == "mac" and self.toolset == "target":
+            type_in_output_root += ["shared_library", "static_library"]
+        elif self.flavor == "win" and self.toolset == "target":
+            type_in_output_root += ["shared_library"]
+
+        if arch is not None:
+            # Make sure partial executables don't end up in a bundle or the regular
+            # output directory.
+            archdir = "arch"
+            if self.toolset != "target":
+                archdir = os.path.join("arch", "%s" % self.toolset)
+            return os.path.join(archdir, AddArch(filename, arch))
+        elif type in type_in_output_root or self.is_standalone_static_library:
+            return filename
+        elif type == "shared_library":
+            libdir = "lib"
+            if self.toolset != "target":
+                libdir = os.path.join("lib", "%s" % self.toolset)
+            return os.path.join(libdir, filename)
+        else:
+            return self.GypPathToUniqueOutput(filename, qualified=False)
+
+    def WriteVariableList(self, ninja_file, var, values):
+        assert not isinstance(values, str)
+        if values is None:
+            values = []
+        ninja_file.variable(var, " ".join(values))
+
+    def WriteNewNinjaRule(
+        self, name, args, description, win_shell_flags, env, pool, depfile=None
+    ):
+        """Write out a new ninja "rule" statement for a given command.
+
+        Returns the name of the new rule, and a copy of |args| with variables
+        expanded."""
+
+        if self.flavor == "win":
+            args = [
+                self.msvs_settings.ConvertVSMacros(
+                    arg, self.base_to_build, config=self.config_name
+                )
+                for arg in args
+            ]
+            description = self.msvs_settings.ConvertVSMacros(
+                description, config=self.config_name
+            )
+        elif self.flavor == "mac":
+            # |env| is an empty list on non-mac.
+            args = [gyp.xcode_emulation.ExpandEnvVars(arg, env) for arg in args]
+            description = gyp.xcode_emulation.ExpandEnvVars(description, env)
+
+        # TODO: we shouldn't need to qualify names; we do it because
+        # currently the ninja rule namespace is global, but it really
+        # should be scoped to the subninja.
+        rule_name = self.name
+        if self.toolset == "target":
+            rule_name += "." + self.toolset
+        rule_name += "." + name
+        rule_name = re.sub("[^a-zA-Z0-9_]", "_", rule_name)
+
+        # Remove variable references, but not if they refer to the magic rule
+        # variables.  This is not quite right, as it also protects these for
+        # actions, not just for rules where they are valid. Good enough.
+        protect = ["${root}", "${dirname}", "${source}", "${ext}", "${name}"]
+        protect = "(?!" + "|".join(map(re.escape, protect)) + ")"
+        description = re.sub(protect + r"\$", "_", description)
+
+        # gyp dictates that commands are run from the base directory.
+        # cd into the directory before running, and adjust paths in
+        # the arguments to point to the proper locations.
+        rspfile = None
+        rspfile_content = None
+        args = [self.ExpandSpecial(arg, self.base_to_build) for arg in args]
+        if self.flavor == "win":
+            rspfile = rule_name + ".$unique_name.rsp"
+            # The cygwin case handles this inside the bash sub-shell.
+            run_in = "" if win_shell_flags.cygwin else " " + self.build_to_base
+            if win_shell_flags.cygwin:
+                rspfile_content = self.msvs_settings.BuildCygwinBashCommandLine(
+                    args, self.build_to_base
+                )
+            else:
+                rspfile_content = gyp.msvs_emulation.EncodeRspFileList(
+                    args, win_shell_flags.quote)
+            command = (
+                "%s gyp-win-tool action-wrapper $arch " % sys.executable
+                + rspfile
+                + run_in
+            )
+        else:
+            env = self.ComputeExportEnvString(env)
+            command = gyp.common.EncodePOSIXShellList(args)
+            command = "cd %s; " % self.build_to_base + env + command
+
+        # GYP rules/actions express being no-ops by not touching their outputs.
+        # Avoid executing downstream dependencies in this case by specifying
+        # restat=1 to ninja.
+        self.ninja.rule(
+            rule_name,
+            command,
+            description,
+            depfile=depfile,
+            restat=True,
+            pool=pool,
+            rspfile=rspfile,
+            rspfile_content=rspfile_content,
+        )
+        self.ninja.newline()
+
+        return rule_name, args
+
+
+def CalculateVariables(default_variables, params):
+    """Calculate additional variables for use in the build (called by gyp)."""
+    global generator_additional_non_configuration_keys
+    global generator_additional_path_sections
+    flavor = gyp.common.GetFlavor(params)
+    if flavor == "mac":
+        default_variables.setdefault("OS", "mac")
+        default_variables.setdefault("SHARED_LIB_SUFFIX", ".dylib")
+        default_variables.setdefault(
+            "SHARED_LIB_DIR", generator_default_variables["PRODUCT_DIR"]
+        )
+        default_variables.setdefault(
+            "LIB_DIR", generator_default_variables["PRODUCT_DIR"]
+        )
+
+        # Copy additional generator configuration data from Xcode, which is shared
+        # by the Mac Ninja generator.
+        import gyp.generator.xcode as xcode_generator
+
+        generator_additional_non_configuration_keys = getattr(
+            xcode_generator, "generator_additional_non_configuration_keys", []
+        )
+        generator_additional_path_sections = getattr(
+            xcode_generator, "generator_additional_path_sections", []
+        )
+        global generator_extra_sources_for_rules
+        generator_extra_sources_for_rules = getattr(
+            xcode_generator, "generator_extra_sources_for_rules", []
+        )
+    elif flavor == "win":
+        exts = gyp.MSVSUtil.TARGET_TYPE_EXT
+        default_variables.setdefault("OS", "win")
+        default_variables["EXECUTABLE_SUFFIX"] = "." + exts["executable"]
+        default_variables["STATIC_LIB_PREFIX"] = ""
+        default_variables["STATIC_LIB_SUFFIX"] = "." + exts["static_library"]
+        default_variables["SHARED_LIB_PREFIX"] = ""
+        default_variables["SHARED_LIB_SUFFIX"] = "." + exts["shared_library"]
+
+        # Copy additional generator configuration data from VS, which is shared
+        # by the Windows Ninja generator.
+        import gyp.generator.msvs as msvs_generator
+
+        generator_additional_non_configuration_keys = getattr(
+            msvs_generator, "generator_additional_non_configuration_keys", []
+        )
+        generator_additional_path_sections = getattr(
+            msvs_generator, "generator_additional_path_sections", []
+        )
+
+        gyp.msvs_emulation.CalculateCommonVariables(default_variables, params)
+    else:
+        operating_system = flavor
+        if flavor == "android":
+            operating_system = "linux"  # Keep this legacy behavior for now.
+        default_variables.setdefault("OS", operating_system)
+        default_variables.setdefault("SHARED_LIB_SUFFIX", ".so")
+        default_variables.setdefault(
+            "SHARED_LIB_DIR", os.path.join("$!PRODUCT_DIR", "lib")
+        )
+        default_variables.setdefault("LIB_DIR", os.path.join("$!PRODUCT_DIR", "obj"))
+
+
+def ComputeOutputDir(params):
+    """Returns the path from the toplevel_dir to the build output directory."""
+    # generator_dir: relative path from pwd to where make puts build files.
+    # Makes migrating from make to ninja easier, ninja doesn't put anything here.
+    generator_dir = os.path.relpath(params["options"].generator_output or ".")
+
+    # output_dir: relative path from generator_dir to the build directory.
+    output_dir = params.get("generator_flags", {}).get("output_dir", "out")
+
+    # Relative path from source root to our output files.  e.g. "out"
+    return os.path.normpath(os.path.join(generator_dir, output_dir))
+
+
+def CalculateGeneratorInputInfo(params):
+    """Called by __init__ to initialize generator values based on params."""
+    # E.g. "out/gypfiles"
+    toplevel = params["options"].toplevel_dir
+    qualified_out_dir = os.path.normpath(
+        os.path.join(toplevel, ComputeOutputDir(params), "gypfiles")
+    )
+
+    global generator_filelist_paths
+    generator_filelist_paths = {
+        "toplevel": toplevel,
+        "qualified_out_dir": qualified_out_dir,
+    }
+
+
+def OpenOutput(path, mode="w"):
+    """Open |path| for writing, creating directories if necessary."""
+    gyp.common.EnsureDirExists(path)
+    return open(path, mode)
+
+
+def CommandWithWrapper(cmd, wrappers, prog):
+    wrapper = wrappers.get(cmd, "")
+    if wrapper:
+        return wrapper + " " + prog
+    return prog
+
+
+def GetDefaultConcurrentLinks():
+    """Returns a best-guess for a number of concurrent links."""
+    pool_size = int(os.environ.get("GYP_LINK_CONCURRENCY", 0))
+    if pool_size:
+        return pool_size
+
+    if sys.platform in ("win32", "cygwin"):
+        import ctypes
+
+        class MEMORYSTATUSEX(ctypes.Structure):
+            _fields_ = [
+                ("dwLength", ctypes.c_ulong),
+                ("dwMemoryLoad", ctypes.c_ulong),
+                ("ullTotalPhys", ctypes.c_ulonglong),
+                ("ullAvailPhys", ctypes.c_ulonglong),
+                ("ullTotalPageFile", ctypes.c_ulonglong),
+                ("ullAvailPageFile", ctypes.c_ulonglong),
+                ("ullTotalVirtual", ctypes.c_ulonglong),
+                ("ullAvailVirtual", ctypes.c_ulonglong),
+                ("sullAvailExtendedVirtual", ctypes.c_ulonglong),
+            ]
+
+        stat = MEMORYSTATUSEX()
+        stat.dwLength = ctypes.sizeof(stat)
+        ctypes.windll.kernel32.GlobalMemoryStatusEx(ctypes.byref(stat))
+
+        # VS 2015 uses 20% more working set than VS 2013 and can consume all RAM
+        # on a 64 GB machine.
+        mem_limit = max(1, stat.ullTotalPhys // (5 * (2 ** 30)))  # total / 5GB
+        hard_cap = max(1, int(os.environ.get("GYP_LINK_CONCURRENCY_MAX", 2 ** 32)))
+        return min(mem_limit, hard_cap)
+    elif sys.platform.startswith("linux"):
+        if os.path.exists("/proc/meminfo"):
+            with open("/proc/meminfo") as meminfo:
+                memtotal_re = re.compile(r"^MemTotal:\s*(\d*)\s*kB")
+                for line in meminfo:
+                    match = memtotal_re.match(line)
+                    if not match:
+                        continue
+                    # Allow 8Gb per link on Linux because Gold is quite memory hungry
+                    return max(1, int(match.group(1)) // (8 * (2 ** 20)))
+        return 1
+    elif sys.platform == "darwin":
+        try:
+            avail_bytes = int(subprocess.check_output(["sysctl", "-n", "hw.memsize"]))
+            # A static library debug build of Chromium's unit_tests takes ~2.7GB, so
+            # 4GB per ld process allows for some more bloat.
+            return max(1, avail_bytes // (4 * (2 ** 30)))  # total / 4GB
+        except subprocess.CalledProcessError:
+            return 1
+    else:
+        # TODO(scottmg): Implement this for other platforms.
+        return 1
+
+
+def _GetWinLinkRuleNameSuffix(embed_manifest):
+    """Returns the suffix used to select an appropriate linking rule depending on
+    whether the manifest embedding is enabled."""
+    return "_embed" if embed_manifest else ""
+
+
+def _AddWinLinkRules(master_ninja, embed_manifest):
+    """Adds link rules for Windows platform to |master_ninja|."""
+
+    def FullLinkCommand(ldcmd, out, binary_type):
+        resource_name = {"exe": "1", "dll": "2"}[binary_type]
+        return (
+            "%(python)s gyp-win-tool link-with-manifests $arch %(embed)s "
+            '%(out)s "%(ldcmd)s" %(resname)s $mt $rc "$intermediatemanifest" '
+            "$manifests"
+            % {
+                "python": sys.executable,
+                "out": out,
+                "ldcmd": ldcmd,
+                "resname": resource_name,
+                "embed": embed_manifest,
+            }
+        )
+
+    rule_name_suffix = _GetWinLinkRuleNameSuffix(embed_manifest)
+    use_separate_mspdbsrv = int(os.environ.get("GYP_USE_SEPARATE_MSPDBSRV", "0")) != 0
+    dlldesc = "LINK%s(DLL) $binary" % rule_name_suffix.upper()
+    dllcmd = (
+        "%s gyp-win-tool link-wrapper $arch %s "
+        "$ld /nologo $implibflag /DLL /OUT:$binary "
+        "@$binary.rsp" % (sys.executable, use_separate_mspdbsrv)
+    )
+    dllcmd = FullLinkCommand(dllcmd, "$binary", "dll")
+    master_ninja.rule(
+        "solink" + rule_name_suffix,
+        description=dlldesc,
+        command=dllcmd,
+        rspfile="$binary.rsp",
+        rspfile_content="$libs $in_newline $ldflags",
+        restat=True,
+        pool="link_pool",
+    )
+    master_ninja.rule(
+        "solink_module" + rule_name_suffix,
+        description=dlldesc,
+        command=dllcmd,
+        rspfile="$binary.rsp",
+        rspfile_content="$libs $in_newline $ldflags",
+        restat=True,
+        pool="link_pool",
+    )
+    # Note that ldflags goes at the end so that it has the option of
+    # overriding default settings earlier in the command line.
+    exe_cmd = (
+        "%s gyp-win-tool link-wrapper $arch %s "
+        "$ld /nologo /OUT:$binary @$binary.rsp"
+        % (sys.executable, use_separate_mspdbsrv)
+    )
+    exe_cmd = FullLinkCommand(exe_cmd, "$binary", "exe")
+    master_ninja.rule(
+        "link" + rule_name_suffix,
+        description="LINK%s $binary" % rule_name_suffix.upper(),
+        command=exe_cmd,
+        rspfile="$binary.rsp",
+        rspfile_content="$in_newline $libs $ldflags",
+        pool="link_pool",
+    )
+
+
+def GenerateOutputForConfig(target_list, target_dicts, data, params, config_name):
+    options = params["options"]
+    flavor = gyp.common.GetFlavor(params)
+    generator_flags = params.get("generator_flags", {})
+
+    # build_dir: relative path from source root to our output files.
+    # e.g. "out/Debug"
+    build_dir = os.path.normpath(os.path.join(ComputeOutputDir(params), config_name))
+
+    toplevel_build = os.path.join(options.toplevel_dir, build_dir)
+
+    master_ninja_file = OpenOutput(os.path.join(toplevel_build, "build.ninja"))
+    master_ninja = ninja_syntax.Writer(master_ninja_file, width=120)
+
+    # Put build-time support tools in out/{config_name}.
+    gyp.common.CopyTool(flavor, toplevel_build, generator_flags)
+
+    # Grab make settings for CC/CXX.
+    # The rules are
+    # - The priority from low to high is gcc/g++, the 'make_global_settings' in
+    #   gyp, the environment variable.
+    # - If there is no 'make_global_settings' for CC.host/CXX.host or
+    #   'CC_host'/'CXX_host' environment variable, cc_host/cxx_host should be set
+    #   to cc/cxx.
+    if flavor == "win":
+        ar = "lib.exe"
+        # cc and cxx must be set to the correct architecture by overriding with one
+        # of cl_x86 or cl_x64 below.
+        cc = "UNSET"
+        cxx = "UNSET"
+        ld = "link.exe"
+        ld_host = "$ld"
+    else:
+        ar = "ar"
+        cc = "cc"
+        cxx = "c++"
+        ld = "$cc"
+        ldxx = "$cxx"
+        ld_host = "$cc_host"
+        ldxx_host = "$cxx_host"
+
+    ar_host = ar
+    cc_host = None
+    cxx_host = None
+    cc_host_global_setting = None
+    cxx_host_global_setting = None
+    clang_cl = None
+    nm = "nm"
+    nm_host = "nm"
+    readelf = "readelf"
+    readelf_host = "readelf"
+
+    build_file, _, _ = gyp.common.ParseQualifiedTarget(target_list[0])
+    make_global_settings = data[build_file].get("make_global_settings", [])
+    build_to_root = gyp.common.InvertRelativePath(build_dir, options.toplevel_dir)
+    wrappers = {}
+    for key, value in make_global_settings:
+        if key == "AR":
+            ar = os.path.join(build_to_root, value)
+        if key == "AR.host":
+            ar_host = os.path.join(build_to_root, value)
+        if key == "CC":
+            cc = os.path.join(build_to_root, value)
+            if cc.endswith("clang-cl"):
+                clang_cl = cc
+        if key == "CXX":
+            cxx = os.path.join(build_to_root, value)
+        if key == "CC.host":
+            cc_host = os.path.join(build_to_root, value)
+            cc_host_global_setting = value
+        if key == "CXX.host":
+            cxx_host = os.path.join(build_to_root, value)
+            cxx_host_global_setting = value
+        if key == "LD":
+            ld = os.path.join(build_to_root, value)
+        if key == "LD.host":
+            ld_host = os.path.join(build_to_root, value)
+        if key == "LDXX":
+            ldxx = os.path.join(build_to_root, value)
+        if key == "LDXX.host":
+            ldxx_host = os.path.join(build_to_root, value)
+        if key == "NM":
+            nm = os.path.join(build_to_root, value)
+        if key == "NM.host":
+            nm_host = os.path.join(build_to_root, value)
+        if key == "READELF":
+            readelf = os.path.join(build_to_root, value)
+        if key == "READELF.host":
+            readelf_host = os.path.join(build_to_root, value)
+        if key.endswith("_wrapper"):
+            wrappers[key[: -len("_wrapper")]] = os.path.join(build_to_root, value)
+
+    # Support wrappers from environment variables too.
+    for key, value in os.environ.items():
+        if key.lower().endswith("_wrapper"):
+            key_prefix = key[: -len("_wrapper")]
+            key_prefix = re.sub(r"\.HOST$", ".host", key_prefix)
+            wrappers[key_prefix] = os.path.join(build_to_root, value)
+
+    mac_toolchain_dir = generator_flags.get("mac_toolchain_dir", None)
+    if mac_toolchain_dir:
+        wrappers["LINK"] = "export DEVELOPER_DIR='%s' &&" % mac_toolchain_dir
+
+    if flavor == "win":
+        configs = [
+            target_dicts[qualified_target]["configurations"][config_name]
+            for qualified_target in target_list
+        ]
+        shared_system_includes = None
+        if not generator_flags.get("ninja_use_custom_environment_files", 0):
+            shared_system_includes = gyp.msvs_emulation.ExtractSharedMSVSSystemIncludes(
+                configs, generator_flags
+            )
+        cl_paths = gyp.msvs_emulation.GenerateEnvironmentFiles(
+            toplevel_build, generator_flags, shared_system_includes, OpenOutput
+        )
+        for arch, path in sorted(cl_paths.items()):
+            if clang_cl:
+                # If we have selected clang-cl, use that instead.
+                path = clang_cl
+            command = CommandWithWrapper(
+                "CC", wrappers, QuoteShellArgument(path, "win")
+            )
+            if clang_cl:
+                # Use clang-cl to cross-compile for x86 or x86_64.
+                command += " -m32" if arch == "x86" else " -m64"
+            master_ninja.variable("cl_" + arch, command)
+
+    cc = GetEnvironFallback(["CC_target", "CC"], cc)
+    master_ninja.variable("cc", CommandWithWrapper("CC", wrappers, cc))
+    cxx = GetEnvironFallback(["CXX_target", "CXX"], cxx)
+    master_ninja.variable("cxx", CommandWithWrapper("CXX", wrappers, cxx))
+
+    if flavor == "win":
+        master_ninja.variable("ld", ld)
+        master_ninja.variable("idl", "midl.exe")
+        master_ninja.variable("ar", ar)
+        master_ninja.variable("rc", "rc.exe")
+        master_ninja.variable("ml_x86", "ml.exe")
+        master_ninja.variable("ml_x64", "ml64.exe")
+        master_ninja.variable("mt", "mt.exe")
+    else:
+        master_ninja.variable("ld", CommandWithWrapper("LINK", wrappers, ld))
+        master_ninja.variable("ldxx", CommandWithWrapper("LINK", wrappers, ldxx))
+        master_ninja.variable("ar", GetEnvironFallback(["AR_target", "AR"], ar))
+        if flavor != "mac":
+            # Mac does not use readelf/nm for .TOC generation, so avoiding polluting
+            # the master ninja with extra unused variables.
+            master_ninja.variable("nm", GetEnvironFallback(["NM_target", "NM"], nm))
+            master_ninja.variable(
+                "readelf", GetEnvironFallback(["READELF_target", "READELF"], readelf)
+            )
+
+    if generator_supports_multiple_toolsets:
+        if not cc_host:
+            cc_host = cc
+        if not cxx_host:
+            cxx_host = cxx
+
+        master_ninja.variable("ar_host", GetEnvironFallback(["AR_host"], ar_host))
+        master_ninja.variable("nm_host", GetEnvironFallback(["NM_host"], nm_host))
+        master_ninja.variable(
+            "readelf_host", GetEnvironFallback(["READELF_host"], readelf_host)
+        )
+        cc_host = GetEnvironFallback(["CC_host"], cc_host)
+        cxx_host = GetEnvironFallback(["CXX_host"], cxx_host)
+
+        # The environment variable could be used in 'make_global_settings', like
+        # ['CC.host', '$(CC)'] or ['CXX.host', '$(CXX)'], transform them here.
+        if "$(CC)" in cc_host and cc_host_global_setting:
+            cc_host = cc_host_global_setting.replace("$(CC)", cc)
+        if "$(CXX)" in cxx_host and cxx_host_global_setting:
+            cxx_host = cxx_host_global_setting.replace("$(CXX)", cxx)
+        master_ninja.variable(
+            "cc_host", CommandWithWrapper("CC.host", wrappers, cc_host)
+        )
+        master_ninja.variable(
+            "cxx_host", CommandWithWrapper("CXX.host", wrappers, cxx_host)
+        )
+        if flavor == "win":
+            master_ninja.variable("ld_host", ld_host)
+        else:
+            master_ninja.variable(
+                "ld_host", CommandWithWrapper("LINK", wrappers, ld_host)
+            )
+            master_ninja.variable(
+                "ldxx_host", CommandWithWrapper("LINK", wrappers, ldxx_host)
+            )
+
+    master_ninja.newline()
+
+    master_ninja.pool("link_pool", depth=GetDefaultConcurrentLinks())
+    master_ninja.newline()
+
+    deps = "msvc" if flavor == "win" else "gcc"
+
+    if flavor != "win":
+        master_ninja.rule(
+            "cc",
+            description="CC $out",
+            command=(
+                "$cc -MMD -MF $out.d $defines $includes $cflags $cflags_c "
+                "$cflags_pch_c -c $in -o $out"
+            ),
+            depfile="$out.d",
+            deps=deps,
+        )
+        master_ninja.rule(
+            "cc_s",
+            description="CC $out",
+            command=(
+                "$cc $defines $includes $cflags $cflags_c "
+                "$cflags_pch_c -c $in -o $out"
+            ),
+        )
+        master_ninja.rule(
+            "cxx",
+            description="CXX $out",
+            command=(
+                "$cxx -MMD -MF $out.d $defines $includes $cflags $cflags_cc "
+                "$cflags_pch_cc -c $in -o $out"
+            ),
+            depfile="$out.d",
+            deps=deps,
+        )
+    else:
+        # TODO(scottmg) Separate pdb names is a test to see if it works around
+        # http://crbug.com/142362. It seems there's a race between the creation of
+        # the .pdb by the precompiled header step for .cc and the compilation of
+        # .c files. This should be handled by mspdbsrv, but rarely errors out with
+        #   c1xx : fatal error C1033: cannot open program database
+        # By making the rules target separate pdb files this might be avoided.
+        cc_command = (
+            "ninja -t msvc -e $arch " + "-- "
+            "$cc /nologo /showIncludes /FC "
+            "@$out.rsp /c $in /Fo$out /Fd$pdbname_c "
+        )
+        cxx_command = (
+            "ninja -t msvc -e $arch " + "-- "
+            "$cxx /nologo /showIncludes /FC "
+            "@$out.rsp /c $in /Fo$out /Fd$pdbname_cc "
+        )
+        master_ninja.rule(
+            "cc",
+            description="CC $out",
+            command=cc_command,
+            rspfile="$out.rsp",
+            rspfile_content="$defines $includes $cflags $cflags_c",
+            deps=deps,
+        )
+        master_ninja.rule(
+            "cxx",
+            description="CXX $out",
+            command=cxx_command,
+            rspfile="$out.rsp",
+            rspfile_content="$defines $includes $cflags $cflags_cc",
+            deps=deps,
+        )
+        master_ninja.rule(
+            "idl",
+            description="IDL $in",
+            command=(
+                "%s gyp-win-tool midl-wrapper $arch $outdir "
+                "$tlb $h $dlldata $iid $proxy $in "
+                "$midl_includes $idlflags" % sys.executable
+            ),
+        )
+        master_ninja.rule(
+            "rc",
+            description="RC $in",
+            # Note: $in must be last otherwise rc.exe complains.
+            command=(
+                "%s gyp-win-tool rc-wrapper "
+                "$arch $rc $defines $resource_includes $rcflags /fo$out $in"
+                % sys.executable
+            ),
+        )
+        master_ninja.rule(
+            "asm",
+            description="ASM $out",
+            command=(
+                "%s gyp-win-tool asm-wrapper "
+                "$arch $asm $defines $includes $asmflags /c /Fo $out $in"
+                % sys.executable
+            ),
+        )
+
+    if flavor != "mac" and flavor != "win":
+        master_ninja.rule(
+            "alink",
+            description="AR $out",
+            command="rm -f $out && $ar rcs $arflags $out $in",
+        )
+        master_ninja.rule(
+            "alink_thin",
+            description="AR $out",
+            command="rm -f $out && $ar rcsT $arflags $out $in",
+        )
+
+        # This allows targets that only need to depend on $lib's API to declare an
+        # order-only dependency on $lib.TOC and avoid relinking such downstream
+        # dependencies when $lib changes only in non-public ways.
+        # The resulting string leaves an uninterpolated %{suffix} which
+        # is used in the final substitution below.
+        mtime_preserving_solink_base = (
+            "if [ ! -e $lib -o ! -e $lib.TOC ]; then "
+            "%(solink)s && %(extract_toc)s > $lib.TOC; else "
+            "%(solink)s && %(extract_toc)s > $lib.tmp && "
+            "if ! cmp -s $lib.tmp $lib.TOC; then mv $lib.tmp $lib.TOC ; "
+            "fi; fi"
+            % {
+                "solink": "$ld -shared $ldflags -o $lib -Wl,-soname=$soname %(suffix)s",
+                "extract_toc": (
+                    "{ $readelf -d $lib | grep SONAME ; "
+                    "$nm -gD -f p $lib | cut -f1-2 -d' '; }"
+                ),
+            }
+        )
+
+        master_ninja.rule(
+            "solink",
+            description="SOLINK $lib",
+            restat=True,
+            command=mtime_preserving_solink_base
+            % {"suffix": "@$link_file_list"},  # noqa: E501
+            rspfile="$link_file_list",
+            rspfile_content=(
+                "-Wl,--whole-archive $in $solibs -Wl," "--no-whole-archive $libs"
+            ),
+            pool="link_pool",
+        )
+        master_ninja.rule(
+            "solink_module",
+            description="SOLINK(module) $lib",
+            restat=True,
+            command=mtime_preserving_solink_base % {"suffix": "@$link_file_list"},
+            rspfile="$link_file_list",
+            rspfile_content="-Wl,--start-group $in $solibs $libs -Wl,--end-group",
+            pool="link_pool",
+        )
+        master_ninja.rule(
+            "link",
+            description="LINK $out",
+            command=(
+                "$ld $ldflags -o $out "
+                "-Wl,--start-group $in $solibs $libs -Wl,--end-group"
+            ),
+            pool="link_pool",
+        )
+    elif flavor == "win":
+        master_ninja.rule(
+            "alink",
+            description="LIB $out",
+            command=(
+                "%s gyp-win-tool link-wrapper $arch False "
+                "$ar /nologo /ignore:4221 /OUT:$out @$out.rsp" % sys.executable
+            ),
+            rspfile="$out.rsp",
+            rspfile_content="$in_newline $libflags",
+        )
+        _AddWinLinkRules(master_ninja, embed_manifest=True)
+        _AddWinLinkRules(master_ninja, embed_manifest=False)
+    else:
+        master_ninja.rule(
+            "objc",
+            description="OBJC $out",
+            command=(
+                "$cc -MMD -MF $out.d $defines $includes $cflags $cflags_objc "
+                "$cflags_pch_objc -c $in -o $out"
+            ),
+            depfile="$out.d",
+            deps=deps,
+        )
+        master_ninja.rule(
+            "objcxx",
+            description="OBJCXX $out",
+            command=(
+                "$cxx -MMD -MF $out.d $defines $includes $cflags $cflags_objcc "
+                "$cflags_pch_objcc -c $in -o $out"
+            ),
+            depfile="$out.d",
+            deps=deps,
+        )
+        master_ninja.rule(
+            "alink",
+            description="LIBTOOL-STATIC $out, POSTBUILDS",
+            command="rm -f $out && "
+            "./gyp-mac-tool filter-libtool libtool $libtool_flags "
+            "-static -o $out $in"
+            "$postbuilds",
+        )
+        master_ninja.rule(
+            "lipo",
+            description="LIPO $out, POSTBUILDS",
+            command="rm -f $out && lipo -create $in -output $out$postbuilds",
+        )
+        master_ninja.rule(
+            "solipo",
+            description="SOLIPO $out, POSTBUILDS",
+            command=(
+                "rm -f $lib $lib.TOC && lipo -create $in -output $lib$postbuilds &&"
+                "%(extract_toc)s > $lib.TOC"
+                % {
+                    "extract_toc": "{ otool -l $lib | grep LC_ID_DYLIB -A 5; "
+                    "nm -gP $lib | cut -f1-2 -d' ' | grep -v U$$; true; }"
+                }
+            ),
+        )
+
+        # Record the public interface of $lib in $lib.TOC. See the corresponding
+        # comment in the posix section above for details.
+        solink_base = "$ld %(type)s $ldflags -o $lib %(suffix)s"
+        mtime_preserving_solink_base = (
+            "if [ ! -e $lib -o ! -e $lib.TOC ] || "
+            # Always force dependent targets to relink if this library
+            # reexports something. Handling this correctly would require
+            # recursive TOC dumping but this is rare in practice, so punt.
+            "otool -l $lib | grep -q LC_REEXPORT_DYLIB ; then "
+            "%(solink)s && %(extract_toc)s > $lib.TOC; "
+            "else "
+            "%(solink)s && %(extract_toc)s > $lib.tmp && "
+            "if ! cmp -s $lib.tmp $lib.TOC; then "
+            "mv $lib.tmp $lib.TOC ; "
+            "fi; "
+            "fi"
+            % {
+                "solink": solink_base,
+                "extract_toc": "{ otool -l $lib | grep LC_ID_DYLIB -A 5; "
+                "nm -gP $lib | cut -f1-2 -d' ' | grep -v U$$; true; }",
+            }
+        )
+
+        solink_suffix = "@$link_file_list$postbuilds"
+        master_ninja.rule(
+            "solink",
+            description="SOLINK $lib, POSTBUILDS",
+            restat=True,
+            command=mtime_preserving_solink_base
+            % {"suffix": solink_suffix, "type": "-shared"},
+            rspfile="$link_file_list",
+            rspfile_content="$in $solibs $libs",
+            pool="link_pool",
+        )
+        master_ninja.rule(
+            "solink_notoc",
+            description="SOLINK $lib, POSTBUILDS",
+            restat=True,
+            command=solink_base % {"suffix": solink_suffix, "type": "-shared"},
+            rspfile="$link_file_list",
+            rspfile_content="$in $solibs $libs",
+            pool="link_pool",
+        )
+
+        master_ninja.rule(
+            "solink_module",
+            description="SOLINK(module) $lib, POSTBUILDS",
+            restat=True,
+            command=mtime_preserving_solink_base
+            % {"suffix": solink_suffix, "type": "-bundle"},
+            rspfile="$link_file_list",
+            rspfile_content="$in $solibs $libs",
+            pool="link_pool",
+        )
+        master_ninja.rule(
+            "solink_module_notoc",
+            description="SOLINK(module) $lib, POSTBUILDS",
+            restat=True,
+            command=solink_base % {"suffix": solink_suffix, "type": "-bundle"},
+            rspfile="$link_file_list",
+            rspfile_content="$in $solibs $libs",
+            pool="link_pool",
+        )
+
+        master_ninja.rule(
+            "link",
+            description="LINK $out, POSTBUILDS",
+            command=("$ld $ldflags -o $out " "$in $solibs $libs$postbuilds"),
+            pool="link_pool",
+        )
+        master_ninja.rule(
+            "preprocess_infoplist",
+            description="PREPROCESS INFOPLIST $out",
+            command=(
+                "$cc -E -P -Wno-trigraphs -x c $defines $in -o $out && "
+                "plutil -convert xml1 $out $out"
+            ),
+        )
+        master_ninja.rule(
+            "copy_infoplist",
+            description="COPY INFOPLIST $in",
+            command="$env ./gyp-mac-tool copy-info-plist $in $out $binary $keys",
+        )
+        master_ninja.rule(
+            "merge_infoplist",
+            description="MERGE INFOPLISTS $in",
+            command="$env ./gyp-mac-tool merge-info-plist $out $in",
+        )
+        master_ninja.rule(
+            "compile_xcassets",
+            description="COMPILE XCASSETS $in",
+            command="$env ./gyp-mac-tool compile-xcassets $keys $in",
+        )
+        master_ninja.rule(
+            "compile_ios_framework_headers",
+            description="COMPILE HEADER MAPS AND COPY FRAMEWORK HEADERS $in",
+            command="$env ./gyp-mac-tool compile-ios-framework-header-map $out "
+            "$framework $in && $env ./gyp-mac-tool "
+            "copy-ios-framework-headers $framework $copy_headers",
+        )
+        master_ninja.rule(
+            "mac_tool",
+            description="MACTOOL $mactool_cmd $in",
+            command="$env ./gyp-mac-tool $mactool_cmd $in $out $binary",
+        )
+        master_ninja.rule(
+            "package_framework",
+            description="PACKAGE FRAMEWORK $out, POSTBUILDS",
+            command="./gyp-mac-tool package-framework $out $version$postbuilds "
+            "&& touch $out",
+        )
+        master_ninja.rule(
+            "package_ios_framework",
+            description="PACKAGE IOS FRAMEWORK $out, POSTBUILDS",
+            command="./gyp-mac-tool package-ios-framework $out $postbuilds "
+            "&& touch $out",
+        )
+    if flavor == "win":
+        master_ninja.rule(
+            "stamp",
+            description="STAMP $out",
+            command="%s gyp-win-tool stamp $out" % sys.executable,
+        )
+    else:
+        master_ninja.rule(
+            "stamp", description="STAMP $out", command="${postbuilds}touch $out"
+        )
+    if flavor == "win":
+        master_ninja.rule(
+            "copy",
+            description="COPY $in $out",
+            command="%s gyp-win-tool recursive-mirror $in $out" % sys.executable,
+        )
+    elif flavor == "zos":
+        master_ninja.rule(
+            "copy",
+            description="COPY $in $out",
+            command="rm -rf $out && cp -fRP $in $out",
+        )
+    else:
+        master_ninja.rule(
+            "copy",
+            description="COPY $in $out",
+            command="ln -f $in $out 2>/dev/null || (rm -rf $out && cp -af $in $out)",
+        )
+    master_ninja.newline()
+
+    all_targets = set()
+    for build_file in params["build_files"]:
+        for target in gyp.common.AllTargets(
+            target_list, target_dicts, os.path.normpath(build_file)
+        ):
+            all_targets.add(target)
+    all_outputs = set()
+
+    # target_outputs is a map from qualified target name to a Target object.
+    target_outputs = {}
+    # target_short_names is a map from target short name to a list of Target
+    # objects.
+    target_short_names = {}
+
+    # short name of targets that were skipped because they didn't contain anything
+    # interesting.
+    # NOTE: there may be overlap between this an non_empty_target_names.
+    empty_target_names = set()
+
+    # Set of non-empty short target names.
+    # NOTE: there may be overlap between this an empty_target_names.
+    non_empty_target_names = set()
+
+    for qualified_target in target_list:
+        # qualified_target is like: third_party/icu/icu.gyp:icui18n#target
+        build_file, name, toolset = gyp.common.ParseQualifiedTarget(qualified_target)
+
+        this_make_global_settings = data[build_file].get("make_global_settings", [])
+        assert make_global_settings == this_make_global_settings, (
+            "make_global_settings needs to be the same for all targets. "
+            f"{this_make_global_settings} vs. {make_global_settings}"
+        )
+
+        spec = target_dicts[qualified_target]
+        if flavor == "mac":
+            gyp.xcode_emulation.MergeGlobalXcodeSettingsToSpec(data[build_file], spec)
+
+        # If build_file is a symlink, we must not follow it because there's a chance
+        # it could point to a path above toplevel_dir, and we cannot correctly deal
+        # with that case at the moment.
+        build_file = gyp.common.RelativePath(build_file, options.toplevel_dir, False)
+
+        qualified_target_for_hash = gyp.common.QualifiedTarget(
+            build_file, name, toolset
+        )
+        qualified_target_for_hash = qualified_target_for_hash.encode("utf-8")
+        hash_for_rules = hashlib.md5(qualified_target_for_hash).hexdigest()
+
+        base_path = os.path.dirname(build_file)
+        obj = "obj"
+        if toolset != "target":
+            obj += "." + toolset
+        output_file = os.path.join(obj, base_path, name + ".ninja")
+
+        ninja_output = StringIO()
+        writer = NinjaWriter(
+            hash_for_rules,
+            target_outputs,
+            base_path,
+            build_dir,
+            ninja_output,
+            toplevel_build,
+            output_file,
+            flavor,
+            toplevel_dir=options.toplevel_dir,
+        )
+
+        target = writer.WriteSpec(spec, config_name, generator_flags)
+
+        if ninja_output.tell() > 0:
+            # Only create files for ninja files that actually have contents.
+            with OpenOutput(os.path.join(toplevel_build, output_file)) as ninja_file:
+                ninja_file.write(ninja_output.getvalue())
+            ninja_output.close()
+            master_ninja.subninja(output_file)
+
+        if target:
+            if name != target.FinalOutput() and spec["toolset"] == "target":
+                target_short_names.setdefault(name, []).append(target)
+            target_outputs[qualified_target] = target
+            if qualified_target in all_targets:
+                all_outputs.add(target.FinalOutput())
+            non_empty_target_names.add(name)
+        else:
+            empty_target_names.add(name)
+
+    if target_short_names:
+        # Write a short name to build this target.  This benefits both the
+        # "build chrome" case as well as the gyp tests, which expect to be
+        # able to run actions and build libraries by their short name.
+        master_ninja.newline()
+        master_ninja.comment("Short names for targets.")
+        for short_name in sorted(target_short_names):
+            master_ninja.build(
+                short_name,
+                "phony",
+                [x.FinalOutput() for x in target_short_names[short_name]],
+            )
+
+    # Write phony targets for any empty targets that weren't written yet. As
+    # short names are  not necessarily unique only do this for short names that
+    # haven't already been output for another target.
+    empty_target_names = empty_target_names - non_empty_target_names
+    if empty_target_names:
+        master_ninja.newline()
+        master_ninja.comment("Empty targets (output for completeness).")
+        for name in sorted(empty_target_names):
+            master_ninja.build(name, "phony")
+
+    if all_outputs:
+        master_ninja.newline()
+        master_ninja.build("all", "phony", sorted(all_outputs))
+        master_ninja.default(generator_flags.get("default_target", "all"))
+
+    master_ninja_file.close()
+
+
+def PerformBuild(data, configurations, params):
+    options = params["options"]
+    for config in configurations:
+        builddir = os.path.join(options.toplevel_dir, "out", config)
+        arguments = ["ninja", "-C", builddir]
+        print(f"Building [{config}]: {arguments}")
+        subprocess.check_call(arguments)
+
+
+def CallGenerateOutputForConfig(arglist):
+    # Ignore the interrupt signal so that the parent process catches it and
+    # kills all multiprocessing children.
+    signal.signal(signal.SIGINT, signal.SIG_IGN)
+
+    (target_list, target_dicts, data, params, config_name) = arglist
+    GenerateOutputForConfig(target_list, target_dicts, data, params, config_name)
+
+
+def GenerateOutput(target_list, target_dicts, data, params):
+    # Update target_dicts for iOS device builds.
+    target_dicts = gyp.xcode_emulation.CloneConfigurationForDeviceAndEmulator(
+        target_dicts
+    )
+
+    user_config = params.get("generator_flags", {}).get("config", None)
+    if gyp.common.GetFlavor(params) == "win":
+        target_list, target_dicts = MSVSUtil.ShardTargets(target_list, target_dicts)
+        target_list, target_dicts = MSVSUtil.InsertLargePdbShims(
+            target_list, target_dicts, generator_default_variables
+        )
+
+    if user_config:
+        GenerateOutputForConfig(target_list, target_dicts, data, params, user_config)
+    else:
+        config_names = target_dicts[target_list[0]]["configurations"]
+        if params["parallel"]:
+            try:
+                pool = multiprocessing.Pool(len(config_names))
+                arglists = []
+                for config_name in config_names:
+                    arglists.append(
+                        (target_list, target_dicts, data, params, config_name)
+                    )
+                pool.map(CallGenerateOutputForConfig, arglists)
+            except KeyboardInterrupt as e:
+                pool.terminate()
+                raise e
+        else:
+            for config_name in config_names:
+                GenerateOutputForConfig(
+                    target_list, target_dicts, data, params, config_name
+                )
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/ninja_test.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/ninja_test.py
new file mode 100644
index 0000000..7d18068
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/ninja_test.py
@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+""" Unit tests for the ninja.py file. """
+
+import sys
+import unittest
+
+import gyp.generator.ninja as ninja
+
+
+class TestPrefixesAndSuffixes(unittest.TestCase):
+    def test_BinaryNamesWindows(self):
+        # These cannot run on non-Windows as they require a VS installation to
+        # correctly handle variable expansion.
+        if sys.platform.startswith("win"):
+            writer = ninja.NinjaWriter(
+                "foo", "wee", ".", ".", "build.ninja", ".", "build.ninja", "win"
+            )
+            spec = {"target_name": "wee"}
+            self.assertTrue(
+                writer.ComputeOutputFileName(spec, "executable").endswith(".exe")
+            )
+            self.assertTrue(
+                writer.ComputeOutputFileName(spec, "shared_library").endswith(".dll")
+            )
+            self.assertTrue(
+                writer.ComputeOutputFileName(spec, "static_library").endswith(".lib")
+            )
+
+    def test_BinaryNamesLinux(self):
+        writer = ninja.NinjaWriter(
+            "foo", "wee", ".", ".", "build.ninja", ".", "build.ninja", "linux"
+        )
+        spec = {"target_name": "wee"}
+        self.assertTrue("." not in writer.ComputeOutputFileName(spec, "executable"))
+        self.assertTrue(
+            writer.ComputeOutputFileName(spec, "shared_library").startswith("lib")
+        )
+        self.assertTrue(
+            writer.ComputeOutputFileName(spec, "static_library").startswith("lib")
+        )
+        self.assertTrue(
+            writer.ComputeOutputFileName(spec, "shared_library").endswith(".so")
+        )
+        self.assertTrue(
+            writer.ComputeOutputFileName(spec, "static_library").endswith(".a")
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/xcode.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/xcode.py
new file mode 100644
index 0000000..2f4d17e
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/xcode.py
@@ -0,0 +1,1394 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+import filecmp
+import gyp.common
+import gyp.xcodeproj_file
+import gyp.xcode_ninja
+import errno
+import os
+import sys
+import posixpath
+import re
+import shutil
+import subprocess
+import tempfile
+
+
+# Project files generated by this module will use _intermediate_var as a
+# custom Xcode setting whose value is a DerivedSources-like directory that's
+# project-specific and configuration-specific.  The normal choice,
+# DERIVED_FILE_DIR, is target-specific, which is thought to be too restrictive
+# as it is likely that multiple targets within a single project file will want
+# to access the same set of generated files.  The other option,
+# PROJECT_DERIVED_FILE_DIR, is unsuitable because while it is project-specific,
+# it is not configuration-specific.  INTERMEDIATE_DIR is defined as
+# $(PROJECT_DERIVED_FILE_DIR)/$(CONFIGURATION).
+_intermediate_var = "INTERMEDIATE_DIR"
+
+# SHARED_INTERMEDIATE_DIR is the same, except that it is shared among all
+# targets that share the same BUILT_PRODUCTS_DIR.
+_shared_intermediate_var = "SHARED_INTERMEDIATE_DIR"
+
+_library_search_paths_var = "LIBRARY_SEARCH_PATHS"
+
+generator_default_variables = {
+    "EXECUTABLE_PREFIX": "",
+    "EXECUTABLE_SUFFIX": "",
+    "STATIC_LIB_PREFIX": "lib",
+    "SHARED_LIB_PREFIX": "lib",
+    "STATIC_LIB_SUFFIX": ".a",
+    "SHARED_LIB_SUFFIX": ".dylib",
+    # INTERMEDIATE_DIR is a place for targets to build up intermediate products.
+    # It is specific to each build environment.  It is only guaranteed to exist
+    # and be constant within the context of a project, corresponding to a single
+    # input file.  Some build environments may allow their intermediate directory
+    # to be shared on a wider scale, but this is not guaranteed.
+    "INTERMEDIATE_DIR": "$(%s)" % _intermediate_var,
+    "OS": "mac",
+    "PRODUCT_DIR": "$(BUILT_PRODUCTS_DIR)",
+    "LIB_DIR": "$(BUILT_PRODUCTS_DIR)",
+    "RULE_INPUT_ROOT": "$(INPUT_FILE_BASE)",
+    "RULE_INPUT_EXT": "$(INPUT_FILE_SUFFIX)",
+    "RULE_INPUT_NAME": "$(INPUT_FILE_NAME)",
+    "RULE_INPUT_PATH": "$(INPUT_FILE_PATH)",
+    "RULE_INPUT_DIRNAME": "$(INPUT_FILE_DIRNAME)",
+    "SHARED_INTERMEDIATE_DIR": "$(%s)" % _shared_intermediate_var,
+    "CONFIGURATION_NAME": "$(CONFIGURATION)",
+}
+
+# The Xcode-specific sections that hold paths.
+generator_additional_path_sections = [
+    "mac_bundle_resources",
+    "mac_framework_headers",
+    "mac_framework_private_headers",
+    # 'mac_framework_dirs', input already handles _dirs endings.
+]
+
+# The Xcode-specific keys that exist on targets and aren't moved down to
+# configurations.
+generator_additional_non_configuration_keys = [
+    "ios_app_extension",
+    "ios_watch_app",
+    "ios_watchkit_extension",
+    "mac_bundle",
+    "mac_bundle_resources",
+    "mac_framework_headers",
+    "mac_framework_private_headers",
+    "mac_xctest_bundle",
+    "mac_xcuitest_bundle",
+    "xcode_create_dependents_test_runner",
+]
+
+# We want to let any rules apply to files that are resources also.
+generator_extra_sources_for_rules = [
+    "mac_bundle_resources",
+    "mac_framework_headers",
+    "mac_framework_private_headers",
+]
+
+generator_filelist_paths = None
+
+# Xcode's standard set of library directories, which don't need to be duplicated
+# in LIBRARY_SEARCH_PATHS. This list is not exhaustive, but that's okay.
+xcode_standard_library_dirs = frozenset(
+    ["$(SDKROOT)/usr/lib", "$(SDKROOT)/usr/local/lib"]
+)
+
+
+def CreateXCConfigurationList(configuration_names):
+    xccl = gyp.xcodeproj_file.XCConfigurationList({"buildConfigurations": []})
+    if len(configuration_names) == 0:
+        configuration_names = ["Default"]
+    for configuration_name in configuration_names:
+        xcbc = gyp.xcodeproj_file.XCBuildConfiguration({"name": configuration_name})
+        xccl.AppendProperty("buildConfigurations", xcbc)
+    xccl.SetProperty("defaultConfigurationName", configuration_names[0])
+    return xccl
+
+
+class XcodeProject:
+    def __init__(self, gyp_path, path, build_file_dict):
+        self.gyp_path = gyp_path
+        self.path = path
+        self.project = gyp.xcodeproj_file.PBXProject(path=path)
+        projectDirPath = gyp.common.RelativePath(
+            os.path.dirname(os.path.abspath(self.gyp_path)),
+            os.path.dirname(path) or ".",
+        )
+        self.project.SetProperty("projectDirPath", projectDirPath)
+        self.project_file = gyp.xcodeproj_file.XCProjectFile(
+            {"rootObject": self.project}
+        )
+        self.build_file_dict = build_file_dict
+
+        # TODO(mark): add destructor that cleans up self.path if created_dir is
+        # True and things didn't complete successfully.  Or do something even
+        # better with "try"?
+        self.created_dir = False
+        try:
+            os.makedirs(self.path)
+            self.created_dir = True
+        except OSError as e:
+            if e.errno != errno.EEXIST:
+                raise
+
+    def Finalize1(self, xcode_targets, serialize_all_tests):
+        # Collect a list of all of the build configuration names used by the
+        # various targets in the file.  It is very heavily advised to keep each
+        # target in an entire project (even across multiple project files) using
+        # the same set of configuration names.
+        configurations = []
+        for xct in self.project.GetProperty("targets"):
+            xccl = xct.GetProperty("buildConfigurationList")
+            xcbcs = xccl.GetProperty("buildConfigurations")
+            for xcbc in xcbcs:
+                name = xcbc.GetProperty("name")
+                if name not in configurations:
+                    configurations.append(name)
+
+        # Replace the XCConfigurationList attached to the PBXProject object with
+        # a new one specifying all of the configuration names used by the various
+        # targets.
+        try:
+            xccl = CreateXCConfigurationList(configurations)
+            self.project.SetProperty("buildConfigurationList", xccl)
+        except Exception:
+            sys.stderr.write("Problem with gyp file %s\n" % self.gyp_path)
+            raise
+
+        # The need for this setting is explained above where _intermediate_var is
+        # defined.  The comments below about wanting to avoid project-wide build
+        # settings apply here too, but this needs to be set on a project-wide basis
+        # so that files relative to the _intermediate_var setting can be displayed
+        # properly in the Xcode UI.
+        #
+        # Note that for configuration-relative files such as anything relative to
+        # _intermediate_var, for the purposes of UI tree view display, Xcode will
+        # only resolve the configuration name once, when the project file is
+        # opened.  If the active build configuration is changed, the project file
+        # must be closed and reopened if it is desired for the tree view to update.
+        # This is filed as Apple radar 6588391.
+        xccl.SetBuildSetting(
+            _intermediate_var, "$(PROJECT_DERIVED_FILE_DIR)/$(CONFIGURATION)"
+        )
+        xccl.SetBuildSetting(
+            _shared_intermediate_var, "$(SYMROOT)/DerivedSources/$(CONFIGURATION)"
+        )
+
+        # Set user-specified project-wide build settings and config files.  This
+        # is intended to be used very sparingly.  Really, almost everything should
+        # go into target-specific build settings sections.  The project-wide
+        # settings are only intended to be used in cases where Xcode attempts to
+        # resolve variable references in a project context as opposed to a target
+        # context, such as when resolving sourceTree references while building up
+        # the tree tree view for UI display.
+        # Any values set globally are applied to all configurations, then any
+        # per-configuration values are applied.
+        for xck, xcv in self.build_file_dict.get("xcode_settings", {}).items():
+            xccl.SetBuildSetting(xck, xcv)
+        if "xcode_config_file" in self.build_file_dict:
+            config_ref = self.project.AddOrGetFileInRootGroup(
+                self.build_file_dict["xcode_config_file"]
+            )
+            xccl.SetBaseConfiguration(config_ref)
+        build_file_configurations = self.build_file_dict.get("configurations", {})
+        if build_file_configurations:
+            for config_name in configurations:
+                build_file_configuration_named = build_file_configurations.get(
+                    config_name, {}
+                )
+                if build_file_configuration_named:
+                    xcc = xccl.ConfigurationNamed(config_name)
+                    for xck, xcv in build_file_configuration_named.get(
+                        "xcode_settings", {}
+                    ).items():
+                        xcc.SetBuildSetting(xck, xcv)
+                    if "xcode_config_file" in build_file_configuration_named:
+                        config_ref = self.project.AddOrGetFileInRootGroup(
+                            build_file_configurations[config_name]["xcode_config_file"]
+                        )
+                        xcc.SetBaseConfiguration(config_ref)
+
+        # Sort the targets based on how they appeared in the input.
+        # TODO(mark): Like a lot of other things here, this assumes internal
+        # knowledge of PBXProject - in this case, of its "targets" property.
+
+        # ordinary_targets are ordinary targets that are already in the project
+        # file. run_test_targets are the targets that run unittests and should be
+        # used for the Run All Tests target.  support_targets are the action/rule
+        # targets used by GYP file targets, just kept for the assert check.
+        ordinary_targets = []
+        run_test_targets = []
+        support_targets = []
+
+        # targets is full list of targets in the project.
+        targets = []
+
+        # does the it define it's own "all"?
+        has_custom_all = False
+
+        # targets_for_all is the list of ordinary_targets that should be listed
+        # in this project's "All" target.  It includes each non_runtest_target
+        # that does not have suppress_wildcard set.
+        targets_for_all = []
+
+        for target in self.build_file_dict["targets"]:
+            target_name = target["target_name"]
+            toolset = target["toolset"]
+            qualified_target = gyp.common.QualifiedTarget(
+                self.gyp_path, target_name, toolset
+            )
+            xcode_target = xcode_targets[qualified_target]
+            # Make sure that the target being added to the sorted list is already in
+            # the unsorted list.
+            assert xcode_target in self.project._properties["targets"]
+            targets.append(xcode_target)
+            ordinary_targets.append(xcode_target)
+            if xcode_target.support_target:
+                support_targets.append(xcode_target.support_target)
+                targets.append(xcode_target.support_target)
+
+            if not int(target.get("suppress_wildcard", False)):
+                targets_for_all.append(xcode_target)
+
+            if target_name.lower() == "all":
+                has_custom_all = True
+
+            # If this target has a 'run_as' attribute, add its target to the
+            # targets, and add it to the test targets.
+            if target.get("run_as"):
+                # Make a target to run something.  It should have one
+                # dependency, the parent xcode target.
+                xccl = CreateXCConfigurationList(configurations)
+                run_target = gyp.xcodeproj_file.PBXAggregateTarget(
+                    {
+                        "name": "Run " + target_name,
+                        "productName": xcode_target.GetProperty("productName"),
+                        "buildConfigurationList": xccl,
+                    },
+                    parent=self.project,
+                )
+                run_target.AddDependency(xcode_target)
+
+                command = target["run_as"]
+                script = ""
+                if command.get("working_directory"):
+                    script = (
+                        script
+                        + 'cd "%s"\n'
+                        % gyp.xcodeproj_file.ConvertVariablesToShellSyntax(
+                            command.get("working_directory")
+                        )
+                    )
+
+                if command.get("environment"):
+                    script = (
+                        script
+                        + "\n".join(
+                            [
+                                'export %s="%s"'
+                                % (
+                                    key,
+                                    gyp.xcodeproj_file.ConvertVariablesToShellSyntax(
+                                        val
+                                    ),
+                                )
+                                for (key, val) in command.get("environment").items()
+                            ]
+                        )
+                        + "\n"
+                    )
+
+                # Some test end up using sockets, files on disk, etc. and can get
+                # confused if more then one test runs at a time.  The generator
+                # flag 'xcode_serialize_all_test_runs' controls the forcing of all
+                # tests serially.  It defaults to True.  To get serial runs this
+                # little bit of python does the same as the linux flock utility to
+                # make sure only one runs at a time.
+                command_prefix = ""
+                if serialize_all_tests:
+                    command_prefix = """python -c "import fcntl, subprocess, sys
+file = open('$TMPDIR/GYP_serialize_test_runs', 'a')
+fcntl.flock(file.fileno(), fcntl.LOCK_EX)
+sys.exit(subprocess.call(sys.argv[1:]))" """
+
+                # If we were unable to exec for some reason, we want to exit
+                # with an error, and fixup variable references to be shell
+                # syntax instead of xcode syntax.
+                script = (
+                    script
+                    + "exec "
+                    + command_prefix
+                    + "%s\nexit 1\n"
+                    % gyp.xcodeproj_file.ConvertVariablesToShellSyntax(
+                        gyp.common.EncodePOSIXShellList(command.get("action"))
+                    )
+                )
+
+                ssbp = gyp.xcodeproj_file.PBXShellScriptBuildPhase(
+                    {"shellScript": script, "showEnvVarsInLog": 0}
+                )
+                run_target.AppendProperty("buildPhases", ssbp)
+
+                # Add the run target to the project file.
+                targets.append(run_target)
+                run_test_targets.append(run_target)
+                xcode_target.test_runner = run_target
+
+        # Make sure that the list of targets being replaced is the same length as
+        # the one replacing it, but allow for the added test runner targets.
+        assert len(self.project._properties["targets"]) == len(ordinary_targets) + len(
+            support_targets
+        )
+
+        self.project._properties["targets"] = targets
+
+        # Get rid of unnecessary levels of depth in groups like the Source group.
+        self.project.RootGroupsTakeOverOnlyChildren(True)
+
+        # Sort the groups nicely.  Do this after sorting the targets, because the
+        # Products group is sorted based on the order of the targets.
+        self.project.SortGroups()
+
+        # Create an "All" target if there's more than one target in this project
+        # file and the project didn't define its own "All" target.  Put a generated
+        # "All" target first so that people opening up the project for the first
+        # time will build everything by default.
+        if len(targets_for_all) > 1 and not has_custom_all:
+            xccl = CreateXCConfigurationList(configurations)
+            all_target = gyp.xcodeproj_file.PBXAggregateTarget(
+                {"buildConfigurationList": xccl, "name": "All"}, parent=self.project
+            )
+
+            for target in targets_for_all:
+                all_target.AddDependency(target)
+
+            # TODO(mark): This is evil because it relies on internal knowledge of
+            # PBXProject._properties.  It's important to get the "All" target first,
+            # though.
+            self.project._properties["targets"].insert(0, all_target)
+
+        # The same, but for run_test_targets.
+        if len(run_test_targets) > 1:
+            xccl = CreateXCConfigurationList(configurations)
+            run_all_tests_target = gyp.xcodeproj_file.PBXAggregateTarget(
+                {"buildConfigurationList": xccl, "name": "Run All Tests"},
+                parent=self.project,
+            )
+            for run_test_target in run_test_targets:
+                run_all_tests_target.AddDependency(run_test_target)
+
+            # Insert after the "All" target, which must exist if there is more than
+            # one run_test_target.
+            self.project._properties["targets"].insert(1, run_all_tests_target)
+
+    def Finalize2(self, xcode_targets, xcode_target_to_target_dict):
+        # Finalize2 needs to happen in a separate step because the process of
+        # updating references to other projects depends on the ordering of targets
+        # within remote project files.  Finalize1 is responsible for sorting duty,
+        # and once all project files are sorted, Finalize2 can come in and update
+        # these references.
+
+        # To support making a "test runner" target that will run all the tests
+        # that are direct dependents of any given target, we look for
+        # xcode_create_dependents_test_runner being set on an Aggregate target,
+        # and generate a second target that will run the tests runners found under
+        # the marked target.
+        for bf_tgt in self.build_file_dict["targets"]:
+            if int(bf_tgt.get("xcode_create_dependents_test_runner", 0)):
+                tgt_name = bf_tgt["target_name"]
+                toolset = bf_tgt["toolset"]
+                qualified_target = gyp.common.QualifiedTarget(
+                    self.gyp_path, tgt_name, toolset
+                )
+                xcode_target = xcode_targets[qualified_target]
+                if isinstance(xcode_target, gyp.xcodeproj_file.PBXAggregateTarget):
+                    # Collect all the run test targets.
+                    all_run_tests = []
+                    pbxtds = xcode_target.GetProperty("dependencies")
+                    for pbxtd in pbxtds:
+                        pbxcip = pbxtd.GetProperty("targetProxy")
+                        dependency_xct = pbxcip.GetProperty("remoteGlobalIDString")
+                        if hasattr(dependency_xct, "test_runner"):
+                            all_run_tests.append(dependency_xct.test_runner)
+
+                    # Directly depend on all the runners as they depend on the target
+                    # that builds them.
+                    if len(all_run_tests) > 0:
+                        run_all_target = gyp.xcodeproj_file.PBXAggregateTarget(
+                            {
+                                "name": "Run %s Tests" % tgt_name,
+                                "productName": tgt_name,
+                            },
+                            parent=self.project,
+                        )
+                        for run_test_target in all_run_tests:
+                            run_all_target.AddDependency(run_test_target)
+
+                        # Insert the test runner after the related target.
+                        idx = self.project._properties["targets"].index(xcode_target)
+                        self.project._properties["targets"].insert(
+                            idx + 1, run_all_target
+                        )
+
+        # Update all references to other projects, to make sure that the lists of
+        # remote products are complete.  Otherwise, Xcode will fill them in when
+        # it opens the project file, which will result in unnecessary diffs.
+        # TODO(mark): This is evil because it relies on internal knowledge of
+        # PBXProject._other_pbxprojects.
+        for other_pbxproject in self.project._other_pbxprojects.keys():
+            self.project.AddOrGetProjectReference(other_pbxproject)
+
+        self.project.SortRemoteProductReferences()
+
+        # Give everything an ID.
+        self.project_file.ComputeIDs()
+
+        # Make sure that no two objects in the project file have the same ID.  If
+        # multiple objects wind up with the same ID, upon loading the file, Xcode
+        # will only recognize one object (the last one in the file?) and the
+        # results are unpredictable.
+        self.project_file.EnsureNoIDCollisions()
+
+    def Write(self):
+        # Write the project file to a temporary location first.  Xcode watches for
+        # changes to the project file and presents a UI sheet offering to reload
+        # the project when it does change.  However, in some cases, especially when
+        # multiple projects are open or when Xcode is busy, things don't work so
+        # seamlessly.  Sometimes, Xcode is able to detect that a project file has
+        # changed but can't unload it because something else is referencing it.
+        # To mitigate this problem, and to avoid even having Xcode present the UI
+        # sheet when an open project is rewritten for inconsequential changes, the
+        # project file is written to a temporary file in the xcodeproj directory
+        # first.  The new temporary file is then compared to the existing project
+        # file, if any.  If they differ, the new file replaces the old; otherwise,
+        # the new project file is simply deleted.  Xcode properly detects a file
+        # being renamed over an open project file as a change and so it remains
+        # able to present the "project file changed" sheet under this system.
+        # Writing to a temporary file first also avoids the possible problem of
+        # Xcode rereading an incomplete project file.
+        (output_fd, new_pbxproj_path) = tempfile.mkstemp(
+            suffix=".tmp", prefix="project.pbxproj.gyp.", dir=self.path
+        )
+
+        try:
+            output_file = os.fdopen(output_fd, "w")
+
+            self.project_file.Print(output_file)
+            output_file.close()
+
+            pbxproj_path = os.path.join(self.path, "project.pbxproj")
+
+            same = False
+            try:
+                same = filecmp.cmp(pbxproj_path, new_pbxproj_path, False)
+            except OSError as e:
+                if e.errno != errno.ENOENT:
+                    raise
+
+            if same:
+                # The new file is identical to the old one, just get rid of the new
+                # one.
+                os.unlink(new_pbxproj_path)
+            else:
+                # The new file is different from the old one, or there is no old one.
+                # Rename the new file to the permanent name.
+                #
+                # tempfile.mkstemp uses an overly restrictive mode, resulting in a
+                # file that can only be read by the owner, regardless of the umask.
+                # There's no reason to not respect the umask here, which means that
+                # an extra hoop is required to fetch it and reset the new file's mode.
+                #
+                # No way to get the umask without setting a new one?  Set a safe one
+                # and then set it back to the old value.
+                umask = os.umask(0o77)
+                os.umask(umask)
+
+                os.chmod(new_pbxproj_path, 0o666 & ~umask)
+                os.rename(new_pbxproj_path, pbxproj_path)
+
+        except Exception:
+            # Don't leave turds behind.  In fact, if this code was responsible for
+            # creating the xcodeproj directory, get rid of that too.
+            os.unlink(new_pbxproj_path)
+            if self.created_dir:
+                shutil.rmtree(self.path, True)
+            raise
+
+
+def AddSourceToTarget(source, type, pbxp, xct):
+    # TODO(mark): Perhaps source_extensions and library_extensions can be made a
+    # little bit fancier.
+    source_extensions = ["c", "cc", "cpp", "cxx", "m", "mm", "s", "swift"]
+
+    # .o is conceptually more of a "source" than a "library," but Xcode thinks
+    # of "sources" as things to compile and "libraries" (or "frameworks") as
+    # things to link with. Adding an object file to an Xcode target's frameworks
+    # phase works properly.
+    library_extensions = ["a", "dylib", "framework", "o"]
+
+    basename = posixpath.basename(source)
+    (root, ext) = posixpath.splitext(basename)
+    if ext:
+        ext = ext[1:].lower()
+
+    if ext in source_extensions and type != "none":
+        xct.SourcesPhase().AddFile(source)
+    elif ext in library_extensions and type != "none":
+        xct.FrameworksPhase().AddFile(source)
+    else:
+        # Files that aren't added to a sources or frameworks build phase can still
+        # go into the project file, just not as part of a build phase.
+        pbxp.AddOrGetFileInRootGroup(source)
+
+
+def AddResourceToTarget(resource, pbxp, xct):
+    # TODO(mark): Combine with AddSourceToTarget above?  Or just inline this call
+    # where it's used.
+    xct.ResourcesPhase().AddFile(resource)
+
+
+def AddHeaderToTarget(header, pbxp, xct, is_public):
+    # TODO(mark): Combine with AddSourceToTarget above?  Or just inline this call
+    # where it's used.
+    settings = "{ATTRIBUTES = (%s, ); }" % ("Private", "Public")[is_public]
+    xct.HeadersPhase().AddFile(header, settings)
+
+
+_xcode_variable_re = re.compile(r"(\$\((.*?)\))")
+
+
+def ExpandXcodeVariables(string, expansions):
+    """Expands Xcode-style $(VARIABLES) in string per the expansions dict.
+
+  In some rare cases, it is appropriate to expand Xcode variables when a
+  project file is generated.  For any substring $(VAR) in string, if VAR is a
+  key in the expansions dict, $(VAR) will be replaced with expansions[VAR].
+  Any $(VAR) substring in string for which VAR is not a key in the expansions
+  dict will remain in the returned string.
+  """
+
+    matches = _xcode_variable_re.findall(string)
+    if matches is None:
+        return string
+
+    matches.reverse()
+    for match in matches:
+        (to_replace, variable) = match
+        if variable not in expansions:
+            continue
+
+        replacement = expansions[variable]
+        string = re.sub(re.escape(to_replace), replacement, string)
+
+    return string
+
+
+_xcode_define_re = re.compile(r"([\\\"\' ])")
+
+
+def EscapeXcodeDefine(s):
+    """We must escape the defines that we give to XCode so that it knows not to
+     split on spaces and to respect backslash and quote literals. However, we
+     must not quote the define, or Xcode will incorrectly interpret variables
+     especially $(inherited)."""
+    return re.sub(_xcode_define_re, r"\\\1", s)
+
+
+def PerformBuild(data, configurations, params):
+    options = params["options"]
+
+    for build_file, build_file_dict in data.items():
+        (build_file_root, build_file_ext) = os.path.splitext(build_file)
+        if build_file_ext != ".gyp":
+            continue
+        xcodeproj_path = build_file_root + options.suffix + ".xcodeproj"
+        if options.generator_output:
+            xcodeproj_path = os.path.join(options.generator_output, xcodeproj_path)
+
+    for config in configurations:
+        arguments = ["xcodebuild", "-project", xcodeproj_path]
+        arguments += ["-configuration", config]
+        print(f"Building [{config}]: {arguments}")
+        subprocess.check_call(arguments)
+
+
+def CalculateGeneratorInputInfo(params):
+    toplevel = params["options"].toplevel_dir
+    if params.get("flavor") == "ninja":
+        generator_dir = os.path.relpath(params["options"].generator_output or ".")
+        output_dir = params.get("generator_flags", {}).get("output_dir", "out")
+        output_dir = os.path.normpath(os.path.join(generator_dir, output_dir))
+        qualified_out_dir = os.path.normpath(
+            os.path.join(toplevel, output_dir, "gypfiles-xcode-ninja")
+        )
+    else:
+        output_dir = os.path.normpath(os.path.join(toplevel, "xcodebuild"))
+        qualified_out_dir = os.path.normpath(
+            os.path.join(toplevel, output_dir, "gypfiles")
+        )
+
+    global generator_filelist_paths
+    generator_filelist_paths = {
+        "toplevel": toplevel,
+        "qualified_out_dir": qualified_out_dir,
+    }
+
+
+def GenerateOutput(target_list, target_dicts, data, params):
+    # Optionally configure each spec to use ninja as the external builder.
+    ninja_wrapper = params.get("flavor") == "ninja"
+    if ninja_wrapper:
+        (target_list, target_dicts, data) = gyp.xcode_ninja.CreateWrapper(
+            target_list, target_dicts, data, params
+        )
+
+    options = params["options"]
+    generator_flags = params.get("generator_flags", {})
+    parallel_builds = generator_flags.get("xcode_parallel_builds", True)
+    serialize_all_tests = generator_flags.get("xcode_serialize_all_test_runs", True)
+    upgrade_check_project_version = generator_flags.get(
+        "xcode_upgrade_check_project_version", None
+    )
+
+    # Format upgrade_check_project_version with leading zeros as needed.
+    if upgrade_check_project_version:
+        upgrade_check_project_version = str(upgrade_check_project_version)
+        while len(upgrade_check_project_version) < 4:
+            upgrade_check_project_version = "0" + upgrade_check_project_version
+
+    skip_excluded_files = not generator_flags.get("xcode_list_excluded_files", True)
+    xcode_projects = {}
+    for build_file, build_file_dict in data.items():
+        (build_file_root, build_file_ext) = os.path.splitext(build_file)
+        if build_file_ext != ".gyp":
+            continue
+        xcodeproj_path = build_file_root + options.suffix + ".xcodeproj"
+        if options.generator_output:
+            xcodeproj_path = os.path.join(options.generator_output, xcodeproj_path)
+        xcp = XcodeProject(build_file, xcodeproj_path, build_file_dict)
+        xcode_projects[build_file] = xcp
+        pbxp = xcp.project
+
+        # Set project-level attributes from multiple options
+        project_attributes = {}
+        if parallel_builds:
+            project_attributes["BuildIndependentTargetsInParallel"] = "YES"
+        if upgrade_check_project_version:
+            project_attributes["LastUpgradeCheck"] = upgrade_check_project_version
+            project_attributes[
+                "LastTestingUpgradeCheck"
+            ] = upgrade_check_project_version
+            project_attributes["LastSwiftUpdateCheck"] = upgrade_check_project_version
+        pbxp.SetProperty("attributes", project_attributes)
+
+        # Add gyp/gypi files to project
+        if not generator_flags.get("standalone"):
+            main_group = pbxp.GetProperty("mainGroup")
+            build_group = gyp.xcodeproj_file.PBXGroup({"name": "Build"})
+            main_group.AppendChild(build_group)
+            for included_file in build_file_dict["included_files"]:
+                build_group.AddOrGetFileByPath(included_file, False)
+
+    xcode_targets = {}
+    xcode_target_to_target_dict = {}
+    for qualified_target in target_list:
+        [build_file, target_name, toolset] = gyp.common.ParseQualifiedTarget(
+            qualified_target
+        )
+
+        spec = target_dicts[qualified_target]
+        if spec["toolset"] != "target":
+            raise Exception(
+                "Multiple toolsets not supported in xcode build (target %s)"
+                % qualified_target
+            )
+        configuration_names = [spec["default_configuration"]]
+        for configuration_name in sorted(spec["configurations"].keys()):
+            if configuration_name not in configuration_names:
+                configuration_names.append(configuration_name)
+        xcp = xcode_projects[build_file]
+        pbxp = xcp.project
+
+        # Set up the configurations for the target according to the list of names
+        # supplied.
+        xccl = CreateXCConfigurationList(configuration_names)
+
+        # Create an XCTarget subclass object for the target. The type with
+        # "+bundle" appended will be used if the target has "mac_bundle" set.
+        # loadable_modules not in a mac_bundle are mapped to
+        # com.googlecode.gyp.xcode.bundle, a pseudo-type that xcode.py interprets
+        # to create a single-file mh_bundle.
+        _types = {
+            "executable": "com.apple.product-type.tool",
+            "loadable_module": "com.googlecode.gyp.xcode.bundle",
+            "shared_library": "com.apple.product-type.library.dynamic",
+            "static_library": "com.apple.product-type.library.static",
+            "mac_kernel_extension": "com.apple.product-type.kernel-extension",
+            "executable+bundle": "com.apple.product-type.application",
+            "loadable_module+bundle": "com.apple.product-type.bundle",
+            "loadable_module+xctest": "com.apple.product-type.bundle.unit-test",
+            "loadable_module+xcuitest": "com.apple.product-type.bundle.ui-testing",
+            "shared_library+bundle": "com.apple.product-type.framework",
+            "executable+extension+bundle": "com.apple.product-type.app-extension",
+            "executable+watch+extension+bundle":
+                "com.apple.product-type.watchkit-extension",
+            "executable+watch+bundle": "com.apple.product-type.application.watchapp",
+            "mac_kernel_extension+bundle": "com.apple.product-type.kernel-extension",
+        }
+
+        target_properties = {
+            "buildConfigurationList": xccl,
+            "name": target_name,
+        }
+
+        type = spec["type"]
+        is_xctest = int(spec.get("mac_xctest_bundle", 0))
+        is_xcuitest = int(spec.get("mac_xcuitest_bundle", 0))
+        is_bundle = int(spec.get("mac_bundle", 0)) or is_xctest
+        is_app_extension = int(spec.get("ios_app_extension", 0))
+        is_watchkit_extension = int(spec.get("ios_watchkit_extension", 0))
+        is_watch_app = int(spec.get("ios_watch_app", 0))
+        if type != "none":
+            type_bundle_key = type
+            if is_xcuitest:
+                type_bundle_key += "+xcuitest"
+                assert type == "loadable_module", (
+                    "mac_xcuitest_bundle targets must have type loadable_module "
+                    "(target %s)" % target_name
+                )
+            elif is_xctest:
+                type_bundle_key += "+xctest"
+                assert type == "loadable_module", (
+                    "mac_xctest_bundle targets must have type loadable_module "
+                    "(target %s)" % target_name
+                )
+            elif is_app_extension:
+                assert is_bundle, (
+                    "ios_app_extension flag requires mac_bundle "
+                    "(target %s)" % target_name
+                )
+                type_bundle_key += "+extension+bundle"
+            elif is_watchkit_extension:
+                assert is_bundle, (
+                    "ios_watchkit_extension flag requires mac_bundle "
+                    "(target %s)" % target_name
+                )
+                type_bundle_key += "+watch+extension+bundle"
+            elif is_watch_app:
+                assert is_bundle, (
+                    "ios_watch_app flag requires mac_bundle "
+                    "(target %s)" % target_name
+                )
+                type_bundle_key += "+watch+bundle"
+            elif is_bundle:
+                type_bundle_key += "+bundle"
+
+            xctarget_type = gyp.xcodeproj_file.PBXNativeTarget
+            try:
+                target_properties["productType"] = _types[type_bundle_key]
+            except KeyError as e:
+                gyp.common.ExceptionAppend(
+                    e,
+                    "-- unknown product type while " "writing target %s" % target_name,
+                )
+                raise
+        else:
+            xctarget_type = gyp.xcodeproj_file.PBXAggregateTarget
+            assert not is_bundle, (
+                'mac_bundle targets cannot have type none (target "%s")' % target_name
+            )
+            assert not is_xcuitest, (
+                'mac_xcuitest_bundle targets cannot have type none (target "%s")'
+                % target_name
+            )
+            assert not is_xctest, (
+                'mac_xctest_bundle targets cannot have type none (target "%s")'
+                % target_name
+            )
+
+        target_product_name = spec.get("product_name")
+        if target_product_name is not None:
+            target_properties["productName"] = target_product_name
+
+        xct = xctarget_type(
+            target_properties,
+            parent=pbxp,
+            force_outdir=spec.get("product_dir"),
+            force_prefix=spec.get("product_prefix"),
+            force_extension=spec.get("product_extension"),
+        )
+        pbxp.AppendProperty("targets", xct)
+        xcode_targets[qualified_target] = xct
+        xcode_target_to_target_dict[xct] = spec
+
+        spec_actions = spec.get("actions", [])
+        spec_rules = spec.get("rules", [])
+
+        # Xcode has some "issues" with checking dependencies for the "Compile
+        # sources" step with any source files/headers generated by actions/rules.
+        # To work around this, if a target is building anything directly (not
+        # type "none"), then a second target is used to run the GYP actions/rules
+        # and is made a dependency of this target.  This way the work is done
+        # before the dependency checks for what should be recompiled.
+        support_xct = None
+        # The Xcode "issues" don't affect xcode-ninja builds, since the dependency
+        # logic all happens in ninja.  Don't bother creating the extra targets in
+        # that case.
+        if type != "none" and (spec_actions or spec_rules) and not ninja_wrapper:
+            support_xccl = CreateXCConfigurationList(configuration_names)
+            support_target_suffix = generator_flags.get(
+                "support_target_suffix", " Support"
+            )
+            support_target_properties = {
+                "buildConfigurationList": support_xccl,
+                "name": target_name + support_target_suffix,
+            }
+            if target_product_name:
+                support_target_properties["productName"] = (
+                    target_product_name + " Support"
+                )
+            support_xct = gyp.xcodeproj_file.PBXAggregateTarget(
+                support_target_properties, parent=pbxp
+            )
+            pbxp.AppendProperty("targets", support_xct)
+            xct.AddDependency(support_xct)
+        # Hang the support target off the main target so it can be tested/found
+        # by the generator during Finalize.
+        xct.support_target = support_xct
+
+        prebuild_index = 0
+
+        # Add custom shell script phases for "actions" sections.
+        for action in spec_actions:
+            # There's no need to write anything into the script to ensure that the
+            # output directories already exist, because Xcode will look at the
+            # declared outputs and automatically ensure that they exist for us.
+
+            # Do we have a message to print when this action runs?
+            message = action.get("message")
+            if message:
+                message = "echo note: " + gyp.common.EncodePOSIXShellArgument(message)
+            else:
+                message = ""
+
+            # Turn the list into a string that can be passed to a shell.
+            action_string = gyp.common.EncodePOSIXShellList(action["action"])
+
+            # Convert Xcode-type variable references to sh-compatible environment
+            # variable references.
+            message_sh = gyp.xcodeproj_file.ConvertVariablesToShellSyntax(message)
+            action_string_sh = gyp.xcodeproj_file.ConvertVariablesToShellSyntax(
+                action_string
+            )
+
+            script = ""
+            # Include the optional message
+            if message_sh:
+                script += message_sh + "\n"
+            # Be sure the script runs in exec, and that if exec fails, the script
+            # exits signalling an error.
+            script += "exec " + action_string_sh + "\nexit 1\n"
+            ssbp = gyp.xcodeproj_file.PBXShellScriptBuildPhase(
+                {
+                    "inputPaths": action["inputs"],
+                    "name": 'Action "' + action["action_name"] + '"',
+                    "outputPaths": action["outputs"],
+                    "shellScript": script,
+                    "showEnvVarsInLog": 0,
+                }
+            )
+
+            if support_xct:
+                support_xct.AppendProperty("buildPhases", ssbp)
+            else:
+                # TODO(mark): this assumes too much knowledge of the internals of
+                # xcodeproj_file; some of these smarts should move into xcodeproj_file
+                # itself.
+                xct._properties["buildPhases"].insert(prebuild_index, ssbp)
+                prebuild_index = prebuild_index + 1
+
+            # TODO(mark): Should verify that at most one of these is specified.
+            if int(action.get("process_outputs_as_sources", False)):
+                for output in action["outputs"]:
+                    AddSourceToTarget(output, type, pbxp, xct)
+
+            if int(action.get("process_outputs_as_mac_bundle_resources", False)):
+                for output in action["outputs"]:
+                    AddResourceToTarget(output, pbxp, xct)
+
+        # tgt_mac_bundle_resources holds the list of bundle resources so
+        # the rule processing can check against it.
+        if is_bundle:
+            tgt_mac_bundle_resources = spec.get("mac_bundle_resources", [])
+        else:
+            tgt_mac_bundle_resources = []
+
+        # Add custom shell script phases driving "make" for "rules" sections.
+        #
+        # Xcode's built-in rule support is almost powerful enough to use directly,
+        # but there are a few significant deficiencies that render them unusable.
+        # There are workarounds for some of its inadequacies, but in aggregate,
+        # the workarounds added complexity to the generator, and some workarounds
+        # actually require input files to be crafted more carefully than I'd like.
+        # Consequently, until Xcode rules are made more capable, "rules" input
+        # sections will be handled in Xcode output by shell script build phases
+        # performed prior to the compilation phase.
+        #
+        # The following problems with Xcode rules were found.  The numbers are
+        # Apple radar IDs.  I hope that these shortcomings are addressed, I really
+        # liked having the rules handled directly in Xcode during the period that
+        # I was prototyping this.
+        #
+        # 6588600 Xcode compiles custom script rule outputs too soon, compilation
+        #         fails.  This occurs when rule outputs from distinct inputs are
+        #         interdependent.  The only workaround is to put rules and their
+        #         inputs in a separate target from the one that compiles the rule
+        #         outputs.  This requires input file cooperation and it means that
+        #         process_outputs_as_sources is unusable.
+        # 6584932 Need to declare that custom rule outputs should be excluded from
+        #         compilation.  A possible workaround is to lie to Xcode about a
+        #         rule's output, giving it a dummy file it doesn't know how to
+        #         compile.  The rule action script would need to touch the dummy.
+        # 6584839 I need a way to declare additional inputs to a custom rule.
+        #         A possible workaround is a shell script phase prior to
+        #         compilation that touches a rule's primary input files if any
+        #         would-be additional inputs are newer than the output.  Modifying
+        #         the source tree - even just modification times - feels dirty.
+        # 6564240 Xcode "custom script" build rules always dump all environment
+        #         variables.  This is a low-prioroty problem and is not a
+        #         show-stopper.
+        rules_by_ext = {}
+        for rule in spec_rules:
+            rules_by_ext[rule["extension"]] = rule
+
+            # First, some definitions:
+            #
+            # A "rule source" is a file that was listed in a target's "sources"
+            # list and will have a rule applied to it on the basis of matching the
+            # rule's "extensions" attribute.  Rule sources are direct inputs to
+            # rules.
+            #
+            # Rule definitions may specify additional inputs in their "inputs"
+            # attribute.  These additional inputs are used for dependency tracking
+            # purposes.
+            #
+            # A "concrete output" is a rule output with input-dependent variables
+            # resolved.  For example, given a rule with:
+            #   'extension': 'ext', 'outputs': ['$(INPUT_FILE_BASE).cc'],
+            # if the target's "sources" list contained "one.ext" and "two.ext",
+            # the "concrete output" for rule input "two.ext" would be "two.cc".  If
+            # a rule specifies multiple outputs, each input file that the rule is
+            # applied to will have the same number of concrete outputs.
+            #
+            # If any concrete outputs are outdated or missing relative to their
+            # corresponding rule_source or to any specified additional input, the
+            # rule action must be performed to generate the concrete outputs.
+
+            # concrete_outputs_by_rule_source will have an item at the same index
+            # as the rule['rule_sources'] that it corresponds to.  Each item is a
+            # list of all of the concrete outputs for the rule_source.
+            concrete_outputs_by_rule_source = []
+
+            # concrete_outputs_all is a flat list of all concrete outputs that this
+            # rule is able to produce, given the known set of input files
+            # (rule_sources) that apply to it.
+            concrete_outputs_all = []
+
+            # messages & actions are keyed by the same indices as rule['rule_sources']
+            # and concrete_outputs_by_rule_source.  They contain the message and
+            # action to perform after resolving input-dependent variables.  The
+            # message is optional, in which case None is stored for each rule source.
+            messages = []
+            actions = []
+
+            for rule_source in rule.get("rule_sources", []):
+                rule_source_dirname, rule_source_basename = posixpath.split(rule_source)
+                (rule_source_root, rule_source_ext) = posixpath.splitext(
+                    rule_source_basename
+                )
+
+                # These are the same variable names that Xcode uses for its own native
+                # rule support.  Because Xcode's rule engine is not being used, they
+                # need to be expanded as they are written to the makefile.
+                rule_input_dict = {
+                    "INPUT_FILE_BASE": rule_source_root,
+                    "INPUT_FILE_SUFFIX": rule_source_ext,
+                    "INPUT_FILE_NAME": rule_source_basename,
+                    "INPUT_FILE_PATH": rule_source,
+                    "INPUT_FILE_DIRNAME": rule_source_dirname,
+                }
+
+                concrete_outputs_for_this_rule_source = []
+                for output in rule.get("outputs", []):
+                    # Fortunately, Xcode and make both use $(VAR) format for their
+                    # variables, so the expansion is the only transformation necessary.
+                    # Any remaining $(VAR)-type variables in the string can be given
+                    # directly to make, which will pick up the correct settings from
+                    # what Xcode puts into the environment.
+                    concrete_output = ExpandXcodeVariables(output, rule_input_dict)
+                    concrete_outputs_for_this_rule_source.append(concrete_output)
+
+                    # Add all concrete outputs to the project.
+                    pbxp.AddOrGetFileInRootGroup(concrete_output)
+
+                concrete_outputs_by_rule_source.append(
+                    concrete_outputs_for_this_rule_source
+                )
+                concrete_outputs_all.extend(concrete_outputs_for_this_rule_source)
+
+                # TODO(mark): Should verify that at most one of these is specified.
+                if int(rule.get("process_outputs_as_sources", False)):
+                    for output in concrete_outputs_for_this_rule_source:
+                        AddSourceToTarget(output, type, pbxp, xct)
+
+                # If the file came from the mac_bundle_resources list or if the rule
+                # is marked to process outputs as bundle resource, do so.
+                was_mac_bundle_resource = rule_source in tgt_mac_bundle_resources
+                if was_mac_bundle_resource or int(
+                    rule.get("process_outputs_as_mac_bundle_resources", False)
+                ):
+                    for output in concrete_outputs_for_this_rule_source:
+                        AddResourceToTarget(output, pbxp, xct)
+
+                # Do we have a message to print when this rule runs?
+                message = rule.get("message")
+                if message:
+                    message = gyp.common.EncodePOSIXShellArgument(message)
+                    message = ExpandXcodeVariables(message, rule_input_dict)
+                messages.append(message)
+
+                # Turn the list into a string that can be passed to a shell.
+                action_string = gyp.common.EncodePOSIXShellList(rule["action"])
+
+                action = ExpandXcodeVariables(action_string, rule_input_dict)
+                actions.append(action)
+
+            if len(concrete_outputs_all) > 0:
+                # TODO(mark): There's a possibility for collision here.  Consider
+                # target "t" rule "A_r" and target "t_A" rule "r".
+                makefile_name = "%s.make" % re.sub(
+                    "[^a-zA-Z0-9_]", "_", "{}_{}".format(target_name, rule["rule_name"])
+                )
+                makefile_path = os.path.join(
+                    xcode_projects[build_file].path, makefile_name
+                )
+                # TODO(mark): try/close?  Write to a temporary file and swap it only
+                # if it's got changes?
+                makefile = open(makefile_path, "w")
+
+                # make will build the first target in the makefile by default.  By
+                # convention, it's called "all".  List all (or at least one)
+                # concrete output for each rule source as a prerequisite of the "all"
+                # target.
+                makefile.write("all: \\\n")
+                for concrete_output_index, concrete_output_by_rule_source in enumerate(
+                    concrete_outputs_by_rule_source
+                ):
+                    # Only list the first (index [0]) concrete output of each input
+                    # in the "all" target.  Otherwise, a parallel make (-j > 1) would
+                    # attempt to process each input multiple times simultaneously.
+                    # Otherwise, "all" could just contain the entire list of
+                    # concrete_outputs_all.
+                    concrete_output = concrete_output_by_rule_source[0]
+                    if (
+                        concrete_output_index
+                        == len(concrete_outputs_by_rule_source) - 1
+                    ):
+                        eol = ""
+                    else:
+                        eol = " \\"
+                    makefile.write(f"    {concrete_output}{eol}\n")
+
+                for (rule_source, concrete_outputs, message, action) in zip(
+                    rule["rule_sources"],
+                    concrete_outputs_by_rule_source,
+                    messages,
+                    actions,
+                ):
+                    makefile.write("\n")
+
+                    # Add a rule that declares it can build each concrete output of a
+                    # rule source.  Collect the names of the directories that are
+                    # required.
+                    concrete_output_dirs = []
+                    for concrete_output_index, concrete_output in enumerate(
+                        concrete_outputs
+                    ):
+                        if concrete_output_index == 0:
+                            bol = ""
+                        else:
+                            bol = "    "
+                        makefile.write(f"{bol}{concrete_output} \\\n")
+
+                        concrete_output_dir = posixpath.dirname(concrete_output)
+                        if (
+                            concrete_output_dir
+                            and concrete_output_dir not in concrete_output_dirs
+                        ):
+                            concrete_output_dirs.append(concrete_output_dir)
+
+                    makefile.write("    : \\\n")
+
+                    # The prerequisites for this rule are the rule source itself and
+                    # the set of additional rule inputs, if any.
+                    prerequisites = [rule_source]
+                    prerequisites.extend(rule.get("inputs", []))
+                    for prerequisite_index, prerequisite in enumerate(prerequisites):
+                        if prerequisite_index == len(prerequisites) - 1:
+                            eol = ""
+                        else:
+                            eol = " \\"
+                        makefile.write(f"    {prerequisite}{eol}\n")
+
+                    # Make sure that output directories exist before executing the rule
+                    # action.
+                    if len(concrete_output_dirs) > 0:
+                        makefile.write(
+                            '\t@mkdir -p "%s"\n' % '" "'.join(concrete_output_dirs)
+                        )
+
+                    # The rule message and action have already had
+                    # the necessary variable substitutions performed.
+                    if message:
+                        # Mark it with note: so Xcode picks it up in build output.
+                        makefile.write("\t@echo note: %s\n" % message)
+                    makefile.write("\t%s\n" % action)
+
+                makefile.close()
+
+                # It might be nice to ensure that needed output directories exist
+                # here rather than in each target in the Makefile, but that wouldn't
+                # work if there ever was a concrete output that had an input-dependent
+                # variable anywhere other than in the leaf position.
+
+                # Don't declare any inputPaths or outputPaths.  If they're present,
+                # Xcode will provide a slight optimization by only running the script
+                # phase if any output is missing or outdated relative to any input.
+                # Unfortunately, it will also assume that all outputs are touched by
+                # the script, and if the outputs serve as files in a compilation
+                # phase, they will be unconditionally rebuilt.  Since make might not
+                # rebuild everything that could be declared here as an output, this
+                # extra compilation activity is unnecessary.  With inputPaths and
+                # outputPaths not supplied, make will always be called, but it knows
+                # enough to not do anything when everything is up-to-date.
+
+                # To help speed things up, pass -j COUNT to make so it does some work
+                # in parallel.  Don't use ncpus because Xcode will build ncpus targets
+                # in parallel and if each target happens to have a rules step, there
+                # would be ncpus^2 things going.  With a machine that has 2 quad-core
+                # Xeons, a build can quickly run out of processes based on
+                # scheduling/other tasks, and randomly failing builds are no good.
+                script = (
+                    """JOB_COUNT="$(/usr/sbin/sysctl -n hw.ncpu)"
+if [ "${JOB_COUNT}" -gt 4 ]; then
+  JOB_COUNT=4
+fi
+exec xcrun make -f "${PROJECT_FILE_PATH}/%s" -j "${JOB_COUNT}"
+exit 1
+"""
+                    % makefile_name
+                )
+                ssbp = gyp.xcodeproj_file.PBXShellScriptBuildPhase(
+                    {
+                        "name": 'Rule "' + rule["rule_name"] + '"',
+                        "shellScript": script,
+                        "showEnvVarsInLog": 0,
+                    }
+                )
+
+                if support_xct:
+                    support_xct.AppendProperty("buildPhases", ssbp)
+                else:
+                    # TODO(mark): this assumes too much knowledge of the internals of
+                    # xcodeproj_file; some of these smarts should move
+                    # into xcodeproj_file itself.
+                    xct._properties["buildPhases"].insert(prebuild_index, ssbp)
+                    prebuild_index = prebuild_index + 1
+
+            # Extra rule inputs also go into the project file.  Concrete outputs were
+            # already added when they were computed.
+            groups = ["inputs", "inputs_excluded"]
+            if skip_excluded_files:
+                groups = [x for x in groups if not x.endswith("_excluded")]
+            for group in groups:
+                for item in rule.get(group, []):
+                    pbxp.AddOrGetFileInRootGroup(item)
+
+        # Add "sources".
+        for source in spec.get("sources", []):
+            (source_root, source_extension) = posixpath.splitext(source)
+            if source_extension[1:] not in rules_by_ext:
+                # AddSourceToTarget will add the file to a root group if it's not
+                # already there.
+                AddSourceToTarget(source, type, pbxp, xct)
+            else:
+                pbxp.AddOrGetFileInRootGroup(source)
+
+        # Add "mac_bundle_resources" and "mac_framework_private_headers" if
+        # it's a bundle of any type.
+        if is_bundle:
+            for resource in tgt_mac_bundle_resources:
+                (resource_root, resource_extension) = posixpath.splitext(resource)
+                if resource_extension[1:] not in rules_by_ext:
+                    AddResourceToTarget(resource, pbxp, xct)
+                else:
+                    pbxp.AddOrGetFileInRootGroup(resource)
+
+            for header in spec.get("mac_framework_private_headers", []):
+                AddHeaderToTarget(header, pbxp, xct, False)
+
+        # Add "mac_framework_headers". These can be valid for both frameworks
+        # and static libraries.
+        if is_bundle or type == "static_library":
+            for header in spec.get("mac_framework_headers", []):
+                AddHeaderToTarget(header, pbxp, xct, True)
+
+        # Add "copies".
+        pbxcp_dict = {}
+        for copy_group in spec.get("copies", []):
+            dest = copy_group["destination"]
+            if dest[0] not in ("/", "$"):
+                # Relative paths are relative to $(SRCROOT).
+                dest = "$(SRCROOT)/" + dest
+
+            code_sign = int(copy_group.get("xcode_code_sign", 0))
+            settings = (None, "{ATTRIBUTES = (CodeSignOnCopy, ); }")[code_sign]
+
+            # Coalesce multiple "copies" sections in the same target with the same
+            # "destination" property into the same PBXCopyFilesBuildPhase, otherwise
+            # they'll wind up with ID collisions.
+            pbxcp = pbxcp_dict.get(dest, None)
+            if pbxcp is None:
+                pbxcp = gyp.xcodeproj_file.PBXCopyFilesBuildPhase(
+                    {"name": "Copy to " + copy_group["destination"]}, parent=xct
+                )
+                pbxcp.SetDestination(dest)
+
+                # TODO(mark): The usual comment about this knowing too much about
+                # gyp.xcodeproj_file internals applies.
+                xct._properties["buildPhases"].insert(prebuild_index, pbxcp)
+
+                pbxcp_dict[dest] = pbxcp
+
+            for file in copy_group["files"]:
+                pbxcp.AddFile(file, settings)
+
+        # Excluded files can also go into the project file.
+        if not skip_excluded_files:
+            for key in [
+                "sources",
+                "mac_bundle_resources",
+                "mac_framework_headers",
+                "mac_framework_private_headers",
+            ]:
+                excluded_key = key + "_excluded"
+                for item in spec.get(excluded_key, []):
+                    pbxp.AddOrGetFileInRootGroup(item)
+
+        # So can "inputs" and "outputs" sections of "actions" groups.
+        groups = ["inputs", "inputs_excluded", "outputs", "outputs_excluded"]
+        if skip_excluded_files:
+            groups = [x for x in groups if not x.endswith("_excluded")]
+        for action in spec.get("actions", []):
+            for group in groups:
+                for item in action.get(group, []):
+                    # Exclude anything in BUILT_PRODUCTS_DIR.  They're products, not
+                    # sources.
+                    if not item.startswith("$(BUILT_PRODUCTS_DIR)/"):
+                        pbxp.AddOrGetFileInRootGroup(item)
+
+        for postbuild in spec.get("postbuilds", []):
+            action_string_sh = gyp.common.EncodePOSIXShellList(postbuild["action"])
+            script = "exec " + action_string_sh + "\nexit 1\n"
+
+            # Make the postbuild step depend on the output of ld or ar from this
+            # target. Apparently putting the script step after the link step isn't
+            # sufficient to ensure proper ordering in all cases. With an input
+            # declared but no outputs, the script step should run every time, as
+            # desired.
+            ssbp = gyp.xcodeproj_file.PBXShellScriptBuildPhase(
+                {
+                    "inputPaths": ["$(BUILT_PRODUCTS_DIR)/$(EXECUTABLE_PATH)"],
+                    "name": 'Postbuild "' + postbuild["postbuild_name"] + '"',
+                    "shellScript": script,
+                    "showEnvVarsInLog": 0,
+                }
+            )
+            xct.AppendProperty("buildPhases", ssbp)
+
+        # Add dependencies before libraries, because adding a dependency may imply
+        # adding a library.  It's preferable to keep dependencies listed first
+        # during a link phase so that they can override symbols that would
+        # otherwise be provided by libraries, which will usually include system
+        # libraries.  On some systems, ld is finicky and even requires the
+        # libraries to be ordered in such a way that unresolved symbols in
+        # earlier-listed libraries may only be resolved by later-listed libraries.
+        # The Mac linker doesn't work that way, but other platforms do, and so
+        # their linker invocations need to be constructed in this way.  There's
+        # no compelling reason for Xcode's linker invocations to differ.
+
+        if "dependencies" in spec:
+            for dependency in spec["dependencies"]:
+                xct.AddDependency(xcode_targets[dependency])
+                # The support project also gets the dependencies (in case they are
+                # needed for the actions/rules to work).
+                if support_xct:
+                    support_xct.AddDependency(xcode_targets[dependency])
+
+        if "libraries" in spec:
+            for library in spec["libraries"]:
+                xct.FrameworksPhase().AddFile(library)
+                # Add the library's directory to LIBRARY_SEARCH_PATHS if necessary.
+                # I wish Xcode handled this automatically.
+                library_dir = posixpath.dirname(library)
+                if library_dir not in xcode_standard_library_dirs and (
+                    not xct.HasBuildSetting(_library_search_paths_var)
+                    or library_dir not in xct.GetBuildSetting(_library_search_paths_var)
+                ):
+                    xct.AppendBuildSetting(_library_search_paths_var, library_dir)
+
+        for configuration_name in configuration_names:
+            configuration = spec["configurations"][configuration_name]
+            xcbc = xct.ConfigurationNamed(configuration_name)
+            for include_dir in configuration.get("mac_framework_dirs", []):
+                xcbc.AppendBuildSetting("FRAMEWORK_SEARCH_PATHS", include_dir)
+            for include_dir in configuration.get("include_dirs", []):
+                xcbc.AppendBuildSetting("HEADER_SEARCH_PATHS", include_dir)
+            for library_dir in configuration.get("library_dirs", []):
+                if library_dir not in xcode_standard_library_dirs and (
+                    not xcbc.HasBuildSetting(_library_search_paths_var)
+                    or library_dir
+                    not in xcbc.GetBuildSetting(_library_search_paths_var)
+                ):
+                    xcbc.AppendBuildSetting(_library_search_paths_var, library_dir)
+
+            if "defines" in configuration:
+                for define in configuration["defines"]:
+                    set_define = EscapeXcodeDefine(define)
+                    xcbc.AppendBuildSetting("GCC_PREPROCESSOR_DEFINITIONS", set_define)
+            if "xcode_settings" in configuration:
+                for xck, xcv in configuration["xcode_settings"].items():
+                    xcbc.SetBuildSetting(xck, xcv)
+            if "xcode_config_file" in configuration:
+                config_ref = pbxp.AddOrGetFileInRootGroup(
+                    configuration["xcode_config_file"]
+                )
+                xcbc.SetBaseConfiguration(config_ref)
+
+    build_files = []
+    for build_file, build_file_dict in data.items():
+        if build_file.endswith(".gyp"):
+            build_files.append(build_file)
+
+    for build_file in build_files:
+        xcode_projects[build_file].Finalize1(xcode_targets, serialize_all_tests)
+
+    for build_file in build_files:
+        xcode_projects[build_file].Finalize2(xcode_targets, xcode_target_to_target_dict)
+
+    for build_file in build_files:
+        xcode_projects[build_file].Write()
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/generator/xcode_test.py b/node_modules/node-gyp/gyp/pylib/gyp/generator/xcode_test.py
new file mode 100644
index 0000000..49772d1
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/generator/xcode_test.py
@@ -0,0 +1,25 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2013 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+""" Unit tests for the xcode.py file. """
+
+import gyp.generator.xcode as xcode
+import unittest
+import sys
+
+
+class TestEscapeXcodeDefine(unittest.TestCase):
+    if sys.platform == "darwin":
+
+        def test_InheritedRemainsUnescaped(self):
+            self.assertEqual(xcode.EscapeXcodeDefine("$(inherited)"), "$(inherited)")
+
+        def test_Escaping(self):
+            self.assertEqual(xcode.EscapeXcodeDefine('a b"c\\'), 'a\\ b\\"c\\\\')
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/input.py b/node_modules/node-gyp/gyp/pylib/gyp/input.py
new file mode 100644
index 0000000..354958b
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/input.py
@@ -0,0 +1,3137 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+import ast
+
+import gyp.common
+import gyp.simple_copy
+import multiprocessing
+import os.path
+import re
+import shlex
+import signal
+import subprocess
+import sys
+import threading
+import traceback
+from distutils.version import StrictVersion
+from gyp.common import GypError
+from gyp.common import OrderedSet
+
+# A list of types that are treated as linkable.
+linkable_types = [
+    "executable",
+    "shared_library",
+    "loadable_module",
+    "mac_kernel_extension",
+    "windows_driver",
+]
+
+# A list of sections that contain links to other targets.
+dependency_sections = ["dependencies", "export_dependent_settings"]
+
+# base_path_sections is a list of sections defined by GYP that contain
+# pathnames.  The generators can provide more keys, the two lists are merged
+# into path_sections, but you should call IsPathSection instead of using either
+# list directly.
+base_path_sections = [
+    "destination",
+    "files",
+    "include_dirs",
+    "inputs",
+    "libraries",
+    "outputs",
+    "sources",
+]
+path_sections = set()
+
+# These per-process dictionaries are used to cache build file data when loading
+# in parallel mode.
+per_process_data = {}
+per_process_aux_data = {}
+
+
+def IsPathSection(section):
+    # If section ends in one of the '=+?!' characters, it's applied to a section
+    # without the trailing characters.  '/' is notably absent from this list,
+    # because there's no way for a regular expression to be treated as a path.
+    while section and section[-1:] in "=+?!":
+        section = section[:-1]
+
+    if section in path_sections:
+        return True
+
+    # Sections matching the regexp '_(dir|file|path)s?$' are also
+    # considered PathSections. Using manual string matching since that
+    # is much faster than the regexp and this can be called hundreds of
+    # thousands of times so micro performance matters.
+    if "_" in section:
+        tail = section[-6:]
+        if tail[-1] == "s":
+            tail = tail[:-1]
+        if tail[-5:] in ("_file", "_path"):
+            return True
+        return tail[-4:] == "_dir"
+
+    return False
+
+
+# base_non_configuration_keys is a list of key names that belong in the target
+# itself and should not be propagated into its configurations.  It is merged
+# with a list that can come from the generator to
+# create non_configuration_keys.
+base_non_configuration_keys = [
+    # Sections that must exist inside targets and not configurations.
+    "actions",
+    "configurations",
+    "copies",
+    "default_configuration",
+    "dependencies",
+    "dependencies_original",
+    "libraries",
+    "postbuilds",
+    "product_dir",
+    "product_extension",
+    "product_name",
+    "product_prefix",
+    "rules",
+    "run_as",
+    "sources",
+    "standalone_static_library",
+    "suppress_wildcard",
+    "target_name",
+    "toolset",
+    "toolsets",
+    "type",
+    # Sections that can be found inside targets or configurations, but that
+    # should not be propagated from targets into their configurations.
+    "variables",
+]
+non_configuration_keys = []
+
+# Keys that do not belong inside a configuration dictionary.
+invalid_configuration_keys = [
+    "actions",
+    "all_dependent_settings",
+    "configurations",
+    "dependencies",
+    "direct_dependent_settings",
+    "libraries",
+    "link_settings",
+    "sources",
+    "standalone_static_library",
+    "target_name",
+    "type",
+]
+
+# Controls whether or not the generator supports multiple toolsets.
+multiple_toolsets = False
+
+# Paths for converting filelist paths to output paths: {
+#   toplevel,
+#   qualified_output_dir,
+# }
+generator_filelist_paths = None
+
+
+def GetIncludedBuildFiles(build_file_path, aux_data, included=None):
+    """Return a list of all build files included into build_file_path.
+
+  The returned list will contain build_file_path as well as all other files
+  that it included, either directly or indirectly.  Note that the list may
+  contain files that were included into a conditional section that evaluated
+  to false and was not merged into build_file_path's dict.
+
+  aux_data is a dict containing a key for each build file or included build
+  file.  Those keys provide access to dicts whose "included" keys contain
+  lists of all other files included by the build file.
+
+  included should be left at its default None value by external callers.  It
+  is used for recursion.
+
+  The returned list will not contain any duplicate entries.  Each build file
+  in the list will be relative to the current directory.
+  """
+
+    if included is None:
+        included = []
+
+    if build_file_path in included:
+        return included
+
+    included.append(build_file_path)
+
+    for included_build_file in aux_data[build_file_path].get("included", []):
+        GetIncludedBuildFiles(included_build_file, aux_data, included)
+
+    return included
+
+
+def CheckedEval(file_contents):
+    """Return the eval of a gyp file.
+  The gyp file is restricted to dictionaries and lists only, and
+  repeated keys are not allowed.
+  Note that this is slower than eval() is.
+  """
+
+    syntax_tree = ast.parse(file_contents)
+    assert isinstance(syntax_tree, ast.Module)
+    c1 = syntax_tree.body
+    assert len(c1) == 1
+    c2 = c1[0]
+    assert isinstance(c2, ast.Expr)
+    return CheckNode(c2.value, [])
+
+
+def CheckNode(node, keypath):
+    if isinstance(node, ast.Dict):
+        dict = {}
+        for key, value in zip(node.keys, node.values):
+            assert isinstance(key, ast.Str)
+            key = key.s
+            if key in dict:
+                raise GypError(
+                    "Key '"
+                    + key
+                    + "' repeated at level "
+                    + repr(len(keypath) + 1)
+                    + " with key path '"
+                    + ".".join(keypath)
+                    + "'"
+                )
+            kp = list(keypath)  # Make a copy of the list for descending this node.
+            kp.append(key)
+            dict[key] = CheckNode(value, kp)
+        return dict
+    elif isinstance(node, ast.List):
+        children = []
+        for index, child in enumerate(node.elts):
+            kp = list(keypath)  # Copy list.
+            kp.append(repr(index))
+            children.append(CheckNode(child, kp))
+        return children
+    elif isinstance(node, ast.Str):
+        return node.s
+    else:
+        raise TypeError(
+            "Unknown AST node at key path '" + ".".join(keypath) + "': " + repr(node)
+        )
+
+
+def LoadOneBuildFile(build_file_path, data, aux_data, includes, is_target, check):
+    if build_file_path in data:
+        return data[build_file_path]
+
+    if os.path.exists(build_file_path):
+        build_file_contents = open(build_file_path, encoding='utf-8').read()
+    else:
+        raise GypError(f"{build_file_path} not found (cwd: {os.getcwd()})")
+
+    build_file_data = None
+    try:
+        if check:
+            build_file_data = CheckedEval(build_file_contents)
+        else:
+            build_file_data = eval(build_file_contents, {"__builtins__": {}}, None)
+    except SyntaxError as e:
+        e.filename = build_file_path
+        raise
+    except Exception as e:
+        gyp.common.ExceptionAppend(e, "while reading " + build_file_path)
+        raise
+
+    if type(build_file_data) is not dict:
+        raise GypError("%s does not evaluate to a dictionary." % build_file_path)
+
+    data[build_file_path] = build_file_data
+    aux_data[build_file_path] = {}
+
+    # Scan for includes and merge them in.
+    if "skip_includes" not in build_file_data or not build_file_data["skip_includes"]:
+        try:
+            if is_target:
+                LoadBuildFileIncludesIntoDict(
+                    build_file_data, build_file_path, data, aux_data, includes, check
+                )
+            else:
+                LoadBuildFileIncludesIntoDict(
+                    build_file_data, build_file_path, data, aux_data, None, check
+                )
+        except Exception as e:
+            gyp.common.ExceptionAppend(
+                e, "while reading includes of " + build_file_path
+            )
+            raise
+
+    return build_file_data
+
+
+def LoadBuildFileIncludesIntoDict(
+    subdict, subdict_path, data, aux_data, includes, check
+):
+    includes_list = []
+    if includes is not None:
+        includes_list.extend(includes)
+    if "includes" in subdict:
+        for include in subdict["includes"]:
+            # "include" is specified relative to subdict_path, so compute the real
+            # path to include by appending the provided "include" to the directory
+            # in which subdict_path resides.
+            relative_include = os.path.normpath(
+                os.path.join(os.path.dirname(subdict_path), include)
+            )
+            includes_list.append(relative_include)
+        # Unhook the includes list, it's no longer needed.
+        del subdict["includes"]
+
+    # Merge in the included files.
+    for include in includes_list:
+        if "included" not in aux_data[subdict_path]:
+            aux_data[subdict_path]["included"] = []
+        aux_data[subdict_path]["included"].append(include)
+
+        gyp.DebugOutput(gyp.DEBUG_INCLUDES, "Loading Included File: '%s'", include)
+
+        MergeDicts(
+            subdict,
+            LoadOneBuildFile(include, data, aux_data, None, False, check),
+            subdict_path,
+            include,
+        )
+
+    # Recurse into subdictionaries.
+    for k, v in subdict.items():
+        if type(v) is dict:
+            LoadBuildFileIncludesIntoDict(v, subdict_path, data, aux_data, None, check)
+        elif type(v) is list:
+            LoadBuildFileIncludesIntoList(v, subdict_path, data, aux_data, check)
+
+
+# This recurses into lists so that it can look for dicts.
+def LoadBuildFileIncludesIntoList(sublist, sublist_path, data, aux_data, check):
+    for item in sublist:
+        if type(item) is dict:
+            LoadBuildFileIncludesIntoDict(
+                item, sublist_path, data, aux_data, None, check
+            )
+        elif type(item) is list:
+            LoadBuildFileIncludesIntoList(item, sublist_path, data, aux_data, check)
+
+
+# Processes toolsets in all the targets. This recurses into condition entries
+# since they can contain toolsets as well.
+def ProcessToolsetsInDict(data):
+    if "targets" in data:
+        target_list = data["targets"]
+        new_target_list = []
+        for target in target_list:
+            # If this target already has an explicit 'toolset', and no 'toolsets'
+            # list, don't modify it further.
+            if "toolset" in target and "toolsets" not in target:
+                new_target_list.append(target)
+                continue
+            if multiple_toolsets:
+                toolsets = target.get("toolsets", ["target"])
+            else:
+                toolsets = ["target"]
+            # Make sure this 'toolsets' definition is only processed once.
+            if "toolsets" in target:
+                del target["toolsets"]
+            if len(toolsets) > 0:
+                # Optimization: only do copies if more than one toolset is specified.
+                for build in toolsets[1:]:
+                    new_target = gyp.simple_copy.deepcopy(target)
+                    new_target["toolset"] = build
+                    new_target_list.append(new_target)
+                target["toolset"] = toolsets[0]
+                new_target_list.append(target)
+        data["targets"] = new_target_list
+    if "conditions" in data:
+        for condition in data["conditions"]:
+            if type(condition) is list:
+                for condition_dict in condition[1:]:
+                    if type(condition_dict) is dict:
+                        ProcessToolsetsInDict(condition_dict)
+
+
+# TODO(mark): I don't love this name.  It just means that it's going to load
+# a build file that contains targets and is expected to provide a targets dict
+# that contains the targets...
+def LoadTargetBuildFile(
+    build_file_path,
+    data,
+    aux_data,
+    variables,
+    includes,
+    depth,
+    check,
+    load_dependencies,
+):
+    # If depth is set, predefine the DEPTH variable to be a relative path from
+    # this build file's directory to the directory identified by depth.
+    if depth:
+        # TODO(dglazkov) The backslash/forward-slash replacement at the end is a
+        # temporary measure. This should really be addressed by keeping all paths
+        # in POSIX until actual project generation.
+        d = gyp.common.RelativePath(depth, os.path.dirname(build_file_path))
+        if d == "":
+            variables["DEPTH"] = "."
+        else:
+            variables["DEPTH"] = d.replace("\\", "/")
+
+    # The 'target_build_files' key is only set when loading target build files in
+    # the non-parallel code path, where LoadTargetBuildFile is called
+    # recursively.  In the parallel code path, we don't need to check whether the
+    # |build_file_path| has already been loaded, because the 'scheduled' set in
+    # ParallelState guarantees that we never load the same |build_file_path|
+    # twice.
+    if "target_build_files" in data:
+        if build_file_path in data["target_build_files"]:
+            # Already loaded.
+            return False
+        data["target_build_files"].add(build_file_path)
+
+    gyp.DebugOutput(
+        gyp.DEBUG_INCLUDES, "Loading Target Build File '%s'", build_file_path
+    )
+
+    build_file_data = LoadOneBuildFile(
+        build_file_path, data, aux_data, includes, True, check
+    )
+
+    # Store DEPTH for later use in generators.
+    build_file_data["_DEPTH"] = depth
+
+    # Set up the included_files key indicating which .gyp files contributed to
+    # this target dict.
+    if "included_files" in build_file_data:
+        raise GypError(build_file_path + " must not contain included_files key")
+
+    included = GetIncludedBuildFiles(build_file_path, aux_data)
+    build_file_data["included_files"] = []
+    for included_file in included:
+        # included_file is relative to the current directory, but it needs to
+        # be made relative to build_file_path's directory.
+        included_relative = gyp.common.RelativePath(
+            included_file, os.path.dirname(build_file_path)
+        )
+        build_file_data["included_files"].append(included_relative)
+
+    # Do a first round of toolsets expansion so that conditions can be defined
+    # per toolset.
+    ProcessToolsetsInDict(build_file_data)
+
+    # Apply "pre"/"early" variable expansions and condition evaluations.
+    ProcessVariablesAndConditionsInDict(
+        build_file_data, PHASE_EARLY, variables, build_file_path
+    )
+
+    # Since some toolsets might have been defined conditionally, perform
+    # a second round of toolsets expansion now.
+    ProcessToolsetsInDict(build_file_data)
+
+    # Look at each project's target_defaults dict, and merge settings into
+    # targets.
+    if "target_defaults" in build_file_data:
+        if "targets" not in build_file_data:
+            raise GypError("Unable to find targets in build file %s" % build_file_path)
+
+        index = 0
+        while index < len(build_file_data["targets"]):
+            # This procedure needs to give the impression that target_defaults is
+            # used as defaults, and the individual targets inherit from that.
+            # The individual targets need to be merged into the defaults.  Make
+            # a deep copy of the defaults for each target, merge the target dict
+            # as found in the input file into that copy, and then hook up the
+            # copy with the target-specific data merged into it as the replacement
+            # target dict.
+            old_target_dict = build_file_data["targets"][index]
+            new_target_dict = gyp.simple_copy.deepcopy(
+                build_file_data["target_defaults"]
+            )
+            MergeDicts(
+                new_target_dict, old_target_dict, build_file_path, build_file_path
+            )
+            build_file_data["targets"][index] = new_target_dict
+            index += 1
+
+        # No longer needed.
+        del build_file_data["target_defaults"]
+
+    # Look for dependencies.  This means that dependency resolution occurs
+    # after "pre" conditionals and variable expansion, but before "post" -
+    # in other words, you can't put a "dependencies" section inside a "post"
+    # conditional within a target.
+
+    dependencies = []
+    if "targets" in build_file_data:
+        for target_dict in build_file_data["targets"]:
+            if "dependencies" not in target_dict:
+                continue
+            for dependency in target_dict["dependencies"]:
+                dependencies.append(
+                    gyp.common.ResolveTarget(build_file_path, dependency, None)[0]
+                )
+
+    if load_dependencies:
+        for dependency in dependencies:
+            try:
+                LoadTargetBuildFile(
+                    dependency,
+                    data,
+                    aux_data,
+                    variables,
+                    includes,
+                    depth,
+                    check,
+                    load_dependencies,
+                )
+            except Exception as e:
+                gyp.common.ExceptionAppend(
+                    e, "while loading dependencies of %s" % build_file_path
+                )
+                raise
+    else:
+        return (build_file_path, dependencies)
+
+
+def CallLoadTargetBuildFile(
+    global_flags,
+    build_file_path,
+    variables,
+    includes,
+    depth,
+    check,
+    generator_input_info,
+):
+    """Wrapper around LoadTargetBuildFile for parallel processing.
+
+     This wrapper is used when LoadTargetBuildFile is executed in
+     a worker process.
+  """
+
+    try:
+        signal.signal(signal.SIGINT, signal.SIG_IGN)
+
+        # Apply globals so that the worker process behaves the same.
+        for key, value in global_flags.items():
+            globals()[key] = value
+
+        SetGeneratorGlobals(generator_input_info)
+        result = LoadTargetBuildFile(
+            build_file_path,
+            per_process_data,
+            per_process_aux_data,
+            variables,
+            includes,
+            depth,
+            check,
+            False,
+        )
+        if not result:
+            return result
+
+        (build_file_path, dependencies) = result
+
+        # We can safely pop the build_file_data from per_process_data because it
+        # will never be referenced by this process again, so we don't need to keep
+        # it in the cache.
+        build_file_data = per_process_data.pop(build_file_path)
+
+        # This gets serialized and sent back to the main process via a pipe.
+        # It's handled in LoadTargetBuildFileCallback.
+        return (build_file_path, build_file_data, dependencies)
+    except GypError as e:
+        sys.stderr.write("gyp: %s\n" % e)
+        return None
+    except Exception as e:
+        print("Exception:", e, file=sys.stderr)
+        print(traceback.format_exc(), file=sys.stderr)
+        return None
+
+
+class ParallelProcessingError(Exception):
+    pass
+
+
+class ParallelState:
+    """Class to keep track of state when processing input files in parallel.
+
+  If build files are loaded in parallel, use this to keep track of
+  state during farming out and processing parallel jobs. It's stored
+  in a global so that the callback function can have access to it.
+  """
+
+    def __init__(self):
+        # The multiprocessing pool.
+        self.pool = None
+        # The condition variable used to protect this object and notify
+        # the main loop when there might be more data to process.
+        self.condition = None
+        # The "data" dict that was passed to LoadTargetBuildFileParallel
+        self.data = None
+        # The number of parallel calls outstanding; decremented when a response
+        # was received.
+        self.pending = 0
+        # The set of all build files that have been scheduled, so we don't
+        # schedule the same one twice.
+        self.scheduled = set()
+        # A list of dependency build file paths that haven't been scheduled yet.
+        self.dependencies = []
+        # Flag to indicate if there was an error in a child process.
+        self.error = False
+
+    def LoadTargetBuildFileCallback(self, result):
+        """Handle the results of running LoadTargetBuildFile in another process.
+    """
+        self.condition.acquire()
+        if not result:
+            self.error = True
+            self.condition.notify()
+            self.condition.release()
+            return
+        (build_file_path0, build_file_data0, dependencies0) = result
+        self.data[build_file_path0] = build_file_data0
+        self.data["target_build_files"].add(build_file_path0)
+        for new_dependency in dependencies0:
+            if new_dependency not in self.scheduled:
+                self.scheduled.add(new_dependency)
+                self.dependencies.append(new_dependency)
+        self.pending -= 1
+        self.condition.notify()
+        self.condition.release()
+
+
+def LoadTargetBuildFilesParallel(
+    build_files, data, variables, includes, depth, check, generator_input_info
+):
+    parallel_state = ParallelState()
+    parallel_state.condition = threading.Condition()
+    # Make copies of the build_files argument that we can modify while working.
+    parallel_state.dependencies = list(build_files)
+    parallel_state.scheduled = set(build_files)
+    parallel_state.pending = 0
+    parallel_state.data = data
+
+    try:
+        parallel_state.condition.acquire()
+        while parallel_state.dependencies or parallel_state.pending:
+            if parallel_state.error:
+                break
+            if not parallel_state.dependencies:
+                parallel_state.condition.wait()
+                continue
+
+            dependency = parallel_state.dependencies.pop()
+
+            parallel_state.pending += 1
+            global_flags = {
+                "path_sections": globals()["path_sections"],
+                "non_configuration_keys": globals()["non_configuration_keys"],
+                "multiple_toolsets": globals()["multiple_toolsets"],
+            }
+
+            if not parallel_state.pool:
+                parallel_state.pool = multiprocessing.Pool(multiprocessing.cpu_count())
+            parallel_state.pool.apply_async(
+                CallLoadTargetBuildFile,
+                args=(
+                    global_flags,
+                    dependency,
+                    variables,
+                    includes,
+                    depth,
+                    check,
+                    generator_input_info,
+                ),
+                callback=parallel_state.LoadTargetBuildFileCallback,
+            )
+    except KeyboardInterrupt as e:
+        parallel_state.pool.terminate()
+        raise e
+
+    parallel_state.condition.release()
+
+    parallel_state.pool.close()
+    parallel_state.pool.join()
+    parallel_state.pool = None
+
+    if parallel_state.error:
+        sys.exit(1)
+
+
+# Look for the bracket that matches the first bracket seen in a
+# string, and return the start and end as a tuple.  For example, if
+# the input is something like "<(foo <(bar)) blah", then it would
+# return (1, 13), indicating the entire string except for the leading
+# "<" and trailing " blah".
+LBRACKETS = set("{[(")
+BRACKETS = {"}": "{", "]": "[", ")": "("}
+
+
+def FindEnclosingBracketGroup(input_str):
+    stack = []
+    start = -1
+    for index, char in enumerate(input_str):
+        if char in LBRACKETS:
+            stack.append(char)
+            if start == -1:
+                start = index
+        elif char in BRACKETS:
+            if not stack:
+                return (-1, -1)
+            if stack.pop() != BRACKETS[char]:
+                return (-1, -1)
+            if not stack:
+                return (start, index + 1)
+    return (-1, -1)
+
+
+def IsStrCanonicalInt(string):
+    """Returns True if |string| is in its canonical integer form.
+
+  The canonical form is such that str(int(string)) == string.
+  """
+    if type(string) is str:
+        # This function is called a lot so for maximum performance, avoid
+        # involving regexps which would otherwise make the code much
+        # shorter. Regexps would need twice the time of this function.
+        if string:
+            if string == "0":
+                return True
+            if string[0] == "-":
+                string = string[1:]
+                if not string:
+                    return False
+            if "1" <= string[0] <= "9":
+                return string.isdigit()
+
+    return False
+
+
+# This matches things like "<(asdf)", "<!(cmd)", "<!@(cmd)", "<|(list)",
+# "<!interpreter(arguments)", "<([list])", and even "<([)" and "<(<())".
+# In the last case, the inner "<()" is captured in match['content'].
+early_variable_re = re.compile(
+    r"(?P<replace>(?P<type><(?:(?:!?@?)|\|)?)"
+    r"(?P<command_string>[-a-zA-Z0-9_.]+)?"
+    r"\((?P<is_array>\s*\[?)"
+    r"(?P<content>.*?)(\]?)\))"
+)
+
+# This matches the same as early_variable_re, but with '>' instead of '<'.
+late_variable_re = re.compile(
+    r"(?P<replace>(?P<type>>(?:(?:!?@?)|\|)?)"
+    r"(?P<command_string>[-a-zA-Z0-9_.]+)?"
+    r"\((?P<is_array>\s*\[?)"
+    r"(?P<content>.*?)(\]?)\))"
+)
+
+# This matches the same as early_variable_re, but with '^' instead of '<'.
+latelate_variable_re = re.compile(
+    r"(?P<replace>(?P<type>[\^](?:(?:!?@?)|\|)?)"
+    r"(?P<command_string>[-a-zA-Z0-9_.]+)?"
+    r"\((?P<is_array>\s*\[?)"
+    r"(?P<content>.*?)(\]?)\))"
+)
+
+# Global cache of results from running commands so they don't have to be run
+# more then once.
+cached_command_results = {}
+
+
+def FixupPlatformCommand(cmd):
+    if sys.platform == "win32":
+        if type(cmd) is list:
+            cmd = [re.sub("^cat ", "type ", cmd[0])] + cmd[1:]
+        else:
+            cmd = re.sub("^cat ", "type ", cmd)
+    return cmd
+
+
+PHASE_EARLY = 0
+PHASE_LATE = 1
+PHASE_LATELATE = 2
+
+
+def ExpandVariables(input, phase, variables, build_file):
+    # Look for the pattern that gets expanded into variables
+    if phase == PHASE_EARLY:
+        variable_re = early_variable_re
+        expansion_symbol = "<"
+    elif phase == PHASE_LATE:
+        variable_re = late_variable_re
+        expansion_symbol = ">"
+    elif phase == PHASE_LATELATE:
+        variable_re = latelate_variable_re
+        expansion_symbol = "^"
+    else:
+        assert False
+
+    input_str = str(input)
+    if IsStrCanonicalInt(input_str):
+        return int(input_str)
+
+    # Do a quick scan to determine if an expensive regex search is warranted.
+    if expansion_symbol not in input_str:
+        return input_str
+
+    # Get the entire list of matches as a list of MatchObject instances.
+    # (using findall here would return strings instead of MatchObjects).
+    matches = list(variable_re.finditer(input_str))
+    if not matches:
+        return input_str
+
+    output = input_str
+    # Reverse the list of matches so that replacements are done right-to-left.
+    # That ensures that earlier replacements won't mess up the string in a
+    # way that causes later calls to find the earlier substituted text instead
+    # of what's intended for replacement.
+    matches.reverse()
+    for match_group in matches:
+        match = match_group.groupdict()
+        gyp.DebugOutput(gyp.DEBUG_VARIABLES, "Matches: %r", match)
+        # match['replace'] is the substring to look for, match['type']
+        # is the character code for the replacement type (< > <! >! <| >| <@
+        # >@ <!@ >!@), match['is_array'] contains a '[' for command
+        # arrays, and match['content'] is the name of the variable (< >)
+        # or command to run (<! >!). match['command_string'] is an optional
+        # command string. Currently, only 'pymod_do_main' is supported.
+
+        # run_command is true if a ! variant is used.
+        run_command = "!" in match["type"]
+        command_string = match["command_string"]
+
+        # file_list is true if a | variant is used.
+        file_list = "|" in match["type"]
+
+        # Capture these now so we can adjust them later.
+        replace_start = match_group.start("replace")
+        replace_end = match_group.end("replace")
+
+        # Find the ending paren, and re-evaluate the contained string.
+        (c_start, c_end) = FindEnclosingBracketGroup(input_str[replace_start:])
+
+        # Adjust the replacement range to match the entire command
+        # found by FindEnclosingBracketGroup (since the variable_re
+        # probably doesn't match the entire command if it contained
+        # nested variables).
+        replace_end = replace_start + c_end
+
+        # Find the "real" replacement, matching the appropriate closing
+        # paren, and adjust the replacement start and end.
+        replacement = input_str[replace_start:replace_end]
+
+        # Figure out what the contents of the variable parens are.
+        contents_start = replace_start + c_start + 1
+        contents_end = replace_end - 1
+        contents = input_str[contents_start:contents_end]
+
+        # Do filter substitution now for <|().
+        # Admittedly, this is different than the evaluation order in other
+        # contexts. However, since filtration has no chance to run on <|(),
+        # this seems like the only obvious way to give them access to filters.
+        if file_list:
+            processed_variables = gyp.simple_copy.deepcopy(variables)
+            ProcessListFiltersInDict(contents, processed_variables)
+            # Recurse to expand variables in the contents
+            contents = ExpandVariables(contents, phase, processed_variables, build_file)
+        else:
+            # Recurse to expand variables in the contents
+            contents = ExpandVariables(contents, phase, variables, build_file)
+
+        # Strip off leading/trailing whitespace so that variable matches are
+        # simpler below (and because they are rarely needed).
+        contents = contents.strip()
+
+        # expand_to_list is true if an @ variant is used.  In that case,
+        # the expansion should result in a list.  Note that the caller
+        # is to be expecting a list in return, and not all callers do
+        # because not all are working in list context.  Also, for list
+        # expansions, there can be no other text besides the variable
+        # expansion in the input string.
+        expand_to_list = "@" in match["type"] and input_str == replacement
+
+        if run_command or file_list:
+            # Find the build file's directory, so commands can be run or file lists
+            # generated relative to it.
+            build_file_dir = os.path.dirname(build_file)
+            if build_file_dir == "" and not file_list:
+                # If build_file is just a leaf filename indicating a file in the
+                # current directory, build_file_dir might be an empty string.  Set
+                # it to None to signal to subprocess.Popen that it should run the
+                # command in the current directory.
+                build_file_dir = None
+
+        # Support <|(listfile.txt ...) which generates a file
+        # containing items from a gyp list, generated at gyp time.
+        # This works around actions/rules which have more inputs than will
+        # fit on the command line.
+        if file_list:
+            if type(contents) is list:
+                contents_list = contents
+            else:
+                contents_list = contents.split(" ")
+            replacement = contents_list[0]
+            if os.path.isabs(replacement):
+                raise GypError('| cannot handle absolute paths, got "%s"' % replacement)
+
+            if not generator_filelist_paths:
+                path = os.path.join(build_file_dir, replacement)
+            else:
+                if os.path.isabs(build_file_dir):
+                    toplevel = generator_filelist_paths["toplevel"]
+                    rel_build_file_dir = gyp.common.RelativePath(
+                        build_file_dir, toplevel
+                    )
+                else:
+                    rel_build_file_dir = build_file_dir
+                qualified_out_dir = generator_filelist_paths["qualified_out_dir"]
+                path = os.path.join(qualified_out_dir, rel_build_file_dir, replacement)
+                gyp.common.EnsureDirExists(path)
+
+            replacement = gyp.common.RelativePath(path, build_file_dir)
+            f = gyp.common.WriteOnDiff(path)
+            for i in contents_list[1:]:
+                f.write("%s\n" % i)
+            f.close()
+
+        elif run_command:
+            use_shell = True
+            if match["is_array"]:
+                contents = eval(contents)
+                use_shell = False
+
+            # Check for a cached value to avoid executing commands, or generating
+            # file lists more than once. The cache key contains the command to be
+            # run as well as the directory to run it from, to account for commands
+            # that depend on their current directory.
+            # TODO(http://code.google.com/p/gyp/issues/detail?id=111): In theory,
+            # someone could author a set of GYP files where each time the command
+            # is invoked it produces different output by design. When the need
+            # arises, the syntax should be extended to support no caching off a
+            # command's output so it is run every time.
+            cache_key = (str(contents), build_file_dir)
+            cached_value = cached_command_results.get(cache_key, None)
+            if cached_value is None:
+                gyp.DebugOutput(
+                    gyp.DEBUG_VARIABLES,
+                    "Executing command '%s' in directory '%s'",
+                    contents,
+                    build_file_dir,
+                )
+
+                replacement = ""
+
+                if command_string == "pymod_do_main":
+                    # <!pymod_do_main(modulename param eters) loads |modulename| as a
+                    # python module and then calls that module's DoMain() function,
+                    # passing ["param", "eters"] as a single list argument. For modules
+                    # that don't load quickly, this can be faster than
+                    # <!(python modulename param eters). Do this in |build_file_dir|.
+                    oldwd = os.getcwd()  # Python doesn't like os.open('.'): no fchdir.
+                    if build_file_dir:  # build_file_dir may be None (see above).
+                        os.chdir(build_file_dir)
+                    sys.path.append(os.getcwd())
+                    try:
+
+                        parsed_contents = shlex.split(contents)
+                        try:
+                            py_module = __import__(parsed_contents[0])
+                        except ImportError as e:
+                            raise GypError(
+                                "Error importing pymod_do_main"
+                                "module (%s): %s" % (parsed_contents[0], e)
+                            )
+                        replacement = str(
+                            py_module.DoMain(parsed_contents[1:])
+                        ).rstrip()
+                    finally:
+                        sys.path.pop()
+                        os.chdir(oldwd)
+                    assert replacement is not None
+                elif command_string:
+                    raise GypError(
+                        "Unknown command string '%s' in '%s'."
+                        % (command_string, contents)
+                    )
+                else:
+                    # Fix up command with platform specific workarounds.
+                    contents = FixupPlatformCommand(contents)
+                    try:
+                        p = subprocess.Popen(
+                            contents,
+                            shell=use_shell,
+                            stdout=subprocess.PIPE,
+                            stderr=subprocess.PIPE,
+                            stdin=subprocess.PIPE,
+                            cwd=build_file_dir,
+                        )
+                    except Exception as e:
+                        raise GypError(
+                            "%s while executing command '%s' in %s"
+                            % (e, contents, build_file)
+                        )
+
+                    p_stdout, p_stderr = p.communicate("")
+                    p_stdout = p_stdout.decode("utf-8")
+                    p_stderr = p_stderr.decode("utf-8")
+
+                    if p.wait() != 0 or p_stderr:
+                        sys.stderr.write(p_stderr)
+                        # Simulate check_call behavior, since check_call only exists
+                        # in python 2.5 and later.
+                        raise GypError(
+                            "Call to '%s' returned exit status %d while in %s."
+                            % (contents, p.returncode, build_file)
+                        )
+                    replacement = p_stdout.rstrip()
+
+                cached_command_results[cache_key] = replacement
+            else:
+                gyp.DebugOutput(
+                    gyp.DEBUG_VARIABLES,
+                    "Had cache value for command '%s' in directory '%s'",
+                    contents,
+                    build_file_dir,
+                )
+                replacement = cached_value
+
+        else:
+            if contents not in variables:
+                if contents[-1] in ["!", "/"]:
+                    # In order to allow cross-compiles (nacl) to happen more naturally,
+                    # we will allow references to >(sources/) etc. to resolve to
+                    # and empty list if undefined. This allows actions to:
+                    # 'action!': [
+                    #   '>@(_sources!)',
+                    # ],
+                    # 'action/': [
+                    #   '>@(_sources/)',
+                    # ],
+                    replacement = []
+                else:
+                    raise GypError(
+                        "Undefined variable " + contents + " in " + build_file
+                    )
+            else:
+                replacement = variables[contents]
+
+        if isinstance(replacement, bytes) and not isinstance(replacement, str):
+            replacement = replacement.decode("utf-8")  # done on Python 3 only
+        if type(replacement) is list:
+            for item in replacement:
+                if isinstance(item, bytes) and not isinstance(item, str):
+                    item = item.decode("utf-8")  # done on Python 3 only
+                if not contents[-1] == "/" and type(item) not in (str, int):
+                    raise GypError(
+                        "Variable "
+                        + contents
+                        + " must expand to a string or list of strings; "
+                        + "list contains a "
+                        + item.__class__.__name__
+                    )
+            # Run through the list and handle variable expansions in it.  Since
+            # the list is guaranteed not to contain dicts, this won't do anything
+            # with conditions sections.
+            ProcessVariablesAndConditionsInList(
+                replacement, phase, variables, build_file
+            )
+        elif type(replacement) not in (str, int):
+            raise GypError(
+                "Variable "
+                + contents
+                + " must expand to a string or list of strings; "
+                + "found a "
+                + replacement.__class__.__name__
+            )
+
+        if expand_to_list:
+            # Expanding in list context.  It's guaranteed that there's only one
+            # replacement to do in |input_str| and that it's this replacement.  See
+            # above.
+            if type(replacement) is list:
+                # If it's already a list, make a copy.
+                output = replacement[:]
+            else:
+                # Split it the same way sh would split arguments.
+                output = shlex.split(str(replacement))
+        else:
+            # Expanding in string context.
+            encoded_replacement = ""
+            if type(replacement) is list:
+                # When expanding a list into string context, turn the list items
+                # into a string in a way that will work with a subprocess call.
+                #
+                # TODO(mark): This isn't completely correct.  This should
+                # call a generator-provided function that observes the
+                # proper list-to-argument quoting rules on a specific
+                # platform instead of just calling the POSIX encoding
+                # routine.
+                encoded_replacement = gyp.common.EncodePOSIXShellList(replacement)
+            else:
+                encoded_replacement = replacement
+
+            output = (
+                output[:replace_start] + str(encoded_replacement) + output[replace_end:]
+            )
+        # Prepare for the next match iteration.
+        input_str = output
+
+    if output == input:
+        gyp.DebugOutput(
+            gyp.DEBUG_VARIABLES,
+            "Found only identity matches on %r, avoiding infinite " "recursion.",
+            output,
+        )
+    else:
+        # Look for more matches now that we've replaced some, to deal with
+        # expanding local variables (variables defined in the same
+        # variables block as this one).
+        gyp.DebugOutput(gyp.DEBUG_VARIABLES, "Found output %r, recursing.", output)
+        if type(output) is list:
+            if output and type(output[0]) is list:
+                # Leave output alone if it's a list of lists.
+                # We don't want such lists to be stringified.
+                pass
+            else:
+                new_output = []
+                for item in output:
+                    new_output.append(
+                        ExpandVariables(item, phase, variables, build_file)
+                    )
+                output = new_output
+        else:
+            output = ExpandVariables(output, phase, variables, build_file)
+
+    # Convert all strings that are canonically-represented integers into integers.
+    if type(output) is list:
+        for index, outstr in enumerate(output):
+            if IsStrCanonicalInt(outstr):
+                output[index] = int(outstr)
+    elif IsStrCanonicalInt(output):
+        output = int(output)
+
+    return output
+
+
+# The same condition is often evaluated over and over again so it
+# makes sense to cache as much as possible between evaluations.
+cached_conditions_asts = {}
+
+
+def EvalCondition(condition, conditions_key, phase, variables, build_file):
+    """Returns the dict that should be used or None if the result was
+  that nothing should be used."""
+    if type(condition) is not list:
+        raise GypError(conditions_key + " must be a list")
+    if len(condition) < 2:
+        # It's possible that condition[0] won't work in which case this
+        # attempt will raise its own IndexError.  That's probably fine.
+        raise GypError(
+            conditions_key
+            + " "
+            + condition[0]
+            + " must be at least length 2, not "
+            + str(len(condition))
+        )
+
+    i = 0
+    result = None
+    while i < len(condition):
+        cond_expr = condition[i]
+        true_dict = condition[i + 1]
+        if type(true_dict) is not dict:
+            raise GypError(
+                "{} {} must be followed by a dictionary, not {}".format(
+                    conditions_key, cond_expr, type(true_dict)
+                )
+            )
+        if len(condition) > i + 2 and type(condition[i + 2]) is dict:
+            false_dict = condition[i + 2]
+            i = i + 3
+            if i != len(condition):
+                raise GypError(
+                    "{} {} has {} unexpected trailing items".format(
+                        conditions_key, cond_expr, len(condition) - i
+                    )
+                )
+        else:
+            false_dict = None
+            i = i + 2
+        if result is None:
+            result = EvalSingleCondition(
+                cond_expr, true_dict, false_dict, phase, variables, build_file
+            )
+
+    return result
+
+
+def EvalSingleCondition(cond_expr, true_dict, false_dict, phase, variables, build_file):
+    """Returns true_dict if cond_expr evaluates to true, and false_dict
+  otherwise."""
+    # Do expansions on the condition itself.  Since the condition can naturally
+    # contain variable references without needing to resort to GYP expansion
+    # syntax, this is of dubious value for variables, but someone might want to
+    # use a command expansion directly inside a condition.
+    cond_expr_expanded = ExpandVariables(cond_expr, phase, variables, build_file)
+    if type(cond_expr_expanded) not in (str, int):
+        raise ValueError(
+            "Variable expansion in this context permits str and int "
+            + "only, found "
+            + cond_expr_expanded.__class__.__name__
+        )
+
+    try:
+        if cond_expr_expanded in cached_conditions_asts:
+            ast_code = cached_conditions_asts[cond_expr_expanded]
+        else:
+            ast_code = compile(cond_expr_expanded, "<string>", "eval")
+            cached_conditions_asts[cond_expr_expanded] = ast_code
+        env = {"__builtins__": {}, "v": StrictVersion}
+        if eval(ast_code, env, variables):
+            return true_dict
+        return false_dict
+    except SyntaxError as e:
+        syntax_error = SyntaxError(
+            "%s while evaluating condition '%s' in %s "
+            "at character %d." % (str(e.args[0]), e.text, build_file, e.offset),
+            e.filename,
+            e.lineno,
+            e.offset,
+            e.text,
+        )
+        raise syntax_error
+    except NameError as e:
+        gyp.common.ExceptionAppend(
+            e,
+            f"while evaluating condition '{cond_expr_expanded}' in {build_file}",
+        )
+        raise GypError(e)
+
+
+def ProcessConditionsInDict(the_dict, phase, variables, build_file):
+    # Process a 'conditions' or 'target_conditions' section in the_dict,
+    # depending on phase.
+    # early -> conditions
+    # late -> target_conditions
+    # latelate -> no conditions
+    #
+    # Each item in a conditions list consists of cond_expr, a string expression
+    # evaluated as the condition, and true_dict, a dict that will be merged into
+    # the_dict if cond_expr evaluates to true.  Optionally, a third item,
+    # false_dict, may be present.  false_dict is merged into the_dict if
+    # cond_expr evaluates to false.
+    #
+    # Any dict merged into the_dict will be recursively processed for nested
+    # conditionals and other expansions, also according to phase, immediately
+    # prior to being merged.
+
+    if phase == PHASE_EARLY:
+        conditions_key = "conditions"
+    elif phase == PHASE_LATE:
+        conditions_key = "target_conditions"
+    elif phase == PHASE_LATELATE:
+        return
+    else:
+        assert False
+
+    if conditions_key not in the_dict:
+        return
+
+    conditions_list = the_dict[conditions_key]
+    # Unhook the conditions list, it's no longer needed.
+    del the_dict[conditions_key]
+
+    for condition in conditions_list:
+        merge_dict = EvalCondition(
+            condition, conditions_key, phase, variables, build_file
+        )
+
+        if merge_dict is not None:
+            # Expand variables and nested conditinals in the merge_dict before
+            # merging it.
+            ProcessVariablesAndConditionsInDict(
+                merge_dict, phase, variables, build_file
+            )
+
+            MergeDicts(the_dict, merge_dict, build_file, build_file)
+
+
+def LoadAutomaticVariablesFromDict(variables, the_dict):
+    # Any keys with plain string values in the_dict become automatic variables.
+    # The variable name is the key name with a "_" character prepended.
+    for key, value in the_dict.items():
+        if type(value) in (str, int, list):
+            variables["_" + key] = value
+
+
+def LoadVariablesFromVariablesDict(variables, the_dict, the_dict_key):
+    # Any keys in the_dict's "variables" dict, if it has one, becomes a
+    # variable.  The variable name is the key name in the "variables" dict.
+    # Variables that end with the % character are set only if they are unset in
+    # the variables dict.  the_dict_key is the name of the key that accesses
+    # the_dict in the_dict's parent dict.  If the_dict's parent is not a dict
+    # (it could be a list or it could be parentless because it is a root dict),
+    # the_dict_key will be None.
+    for key, value in the_dict.get("variables", {}).items():
+        if type(value) not in (str, int, list):
+            continue
+
+        if key.endswith("%"):
+            variable_name = key[:-1]
+            if variable_name in variables:
+                # If the variable is already set, don't set it.
+                continue
+            if the_dict_key == "variables" and variable_name in the_dict:
+                # If the variable is set without a % in the_dict, and the_dict is a
+                # variables dict (making |variables| a variables sub-dict of a
+                # variables dict), use the_dict's definition.
+                value = the_dict[variable_name]
+        else:
+            variable_name = key
+
+        variables[variable_name] = value
+
+
+def ProcessVariablesAndConditionsInDict(
+    the_dict, phase, variables_in, build_file, the_dict_key=None
+):
+    """Handle all variable and command expansion and conditional evaluation.
+
+  This function is the public entry point for all variable expansions and
+  conditional evaluations.  The variables_in dictionary will not be modified
+  by this function.
+  """
+
+    # Make a copy of the variables_in dict that can be modified during the
+    # loading of automatics and the loading of the variables dict.
+    variables = variables_in.copy()
+    LoadAutomaticVariablesFromDict(variables, the_dict)
+
+    if "variables" in the_dict:
+        # Make sure all the local variables are added to the variables
+        # list before we process them so that you can reference one
+        # variable from another.  They will be fully expanded by recursion
+        # in ExpandVariables.
+        for key, value in the_dict["variables"].items():
+            variables[key] = value
+
+        # Handle the associated variables dict first, so that any variable
+        # references within can be resolved prior to using them as variables.
+        # Pass a copy of the variables dict to avoid having it be tainted.
+        # Otherwise, it would have extra automatics added for everything that
+        # should just be an ordinary variable in this scope.
+        ProcessVariablesAndConditionsInDict(
+            the_dict["variables"], phase, variables, build_file, "variables"
+        )
+
+    LoadVariablesFromVariablesDict(variables, the_dict, the_dict_key)
+
+    for key, value in the_dict.items():
+        # Skip "variables", which was already processed if present.
+        if key != "variables" and type(value) is str:
+            expanded = ExpandVariables(value, phase, variables, build_file)
+            if type(expanded) not in (str, int):
+                raise ValueError(
+                    "Variable expansion in this context permits str and int "
+                    + "only, found "
+                    + expanded.__class__.__name__
+                    + " for "
+                    + key
+                )
+            the_dict[key] = expanded
+
+    # Variable expansion may have resulted in changes to automatics.  Reload.
+    # TODO(mark): Optimization: only reload if no changes were made.
+    variables = variables_in.copy()
+    LoadAutomaticVariablesFromDict(variables, the_dict)
+    LoadVariablesFromVariablesDict(variables, the_dict, the_dict_key)
+
+    # Process conditions in this dict.  This is done after variable expansion
+    # so that conditions may take advantage of expanded variables.  For example,
+    # if the_dict contains:
+    #   {'type':       '<(library_type)',
+    #    'conditions': [['_type=="static_library"', { ... }]]},
+    # _type, as used in the condition, will only be set to the value of
+    # library_type if variable expansion is performed before condition
+    # processing.  However, condition processing should occur prior to recursion
+    # so that variables (both automatic and "variables" dict type) may be
+    # adjusted by conditions sections, merged into the_dict, and have the
+    # intended impact on contained dicts.
+    #
+    # This arrangement means that a "conditions" section containing a "variables"
+    # section will only have those variables effective in subdicts, not in
+    # the_dict.  The workaround is to put a "conditions" section within a
+    # "variables" section.  For example:
+    #   {'conditions': [['os=="mac"', {'variables': {'define': 'IS_MAC'}}]],
+    #    'defines':    ['<(define)'],
+    #    'my_subdict': {'defines': ['<(define)']}},
+    # will not result in "IS_MAC" being appended to the "defines" list in the
+    # current scope but would result in it being appended to the "defines" list
+    # within "my_subdict".  By comparison:
+    #   {'variables': {'conditions': [['os=="mac"', {'define': 'IS_MAC'}]]},
+    #    'defines':    ['<(define)'],
+    #    'my_subdict': {'defines': ['<(define)']}},
+    # will append "IS_MAC" to both "defines" lists.
+
+    # Evaluate conditions sections, allowing variable expansions within them
+    # as well as nested conditionals.  This will process a 'conditions' or
+    # 'target_conditions' section, perform appropriate merging and recursive
+    # conditional and variable processing, and then remove the conditions section
+    # from the_dict if it is present.
+    ProcessConditionsInDict(the_dict, phase, variables, build_file)
+
+    # Conditional processing may have resulted in changes to automatics or the
+    # variables dict.  Reload.
+    variables = variables_in.copy()
+    LoadAutomaticVariablesFromDict(variables, the_dict)
+    LoadVariablesFromVariablesDict(variables, the_dict, the_dict_key)
+
+    # Recurse into child dicts, or process child lists which may result in
+    # further recursion into descendant dicts.
+    for key, value in the_dict.items():
+        # Skip "variables" and string values, which were already processed if
+        # present.
+        if key == "variables" or type(value) is str:
+            continue
+        if type(value) is dict:
+            # Pass a copy of the variables dict so that subdicts can't influence
+            # parents.
+            ProcessVariablesAndConditionsInDict(
+                value, phase, variables, build_file, key
+            )
+        elif type(value) is list:
+            # The list itself can't influence the variables dict, and
+            # ProcessVariablesAndConditionsInList will make copies of the variables
+            # dict if it needs to pass it to something that can influence it.  No
+            # copy is necessary here.
+            ProcessVariablesAndConditionsInList(value, phase, variables, build_file)
+        elif type(value) is not int:
+            raise TypeError("Unknown type " + value.__class__.__name__ + " for " + key)
+
+
+def ProcessVariablesAndConditionsInList(the_list, phase, variables, build_file):
+    # Iterate using an index so that new values can be assigned into the_list.
+    index = 0
+    while index < len(the_list):
+        item = the_list[index]
+        if type(item) is dict:
+            # Make a copy of the variables dict so that it won't influence anything
+            # outside of its own scope.
+            ProcessVariablesAndConditionsInDict(item, phase, variables, build_file)
+        elif type(item) is list:
+            ProcessVariablesAndConditionsInList(item, phase, variables, build_file)
+        elif type(item) is str:
+            expanded = ExpandVariables(item, phase, variables, build_file)
+            if type(expanded) in (str, int):
+                the_list[index] = expanded
+            elif type(expanded) is list:
+                the_list[index : index + 1] = expanded
+                index += len(expanded)
+
+                # index now identifies the next item to examine.  Continue right now
+                # without falling into the index increment below.
+                continue
+            else:
+                raise ValueError(
+                    "Variable expansion in this context permits strings and "
+                    + "lists only, found "
+                    + expanded.__class__.__name__
+                    + " at "
+                    + index
+                )
+        elif type(item) is not int:
+            raise TypeError(
+                "Unknown type " + item.__class__.__name__ + " at index " + index
+            )
+        index = index + 1
+
+
+def BuildTargetsDict(data):
+    """Builds a dict mapping fully-qualified target names to their target dicts.
+
+  |data| is a dict mapping loaded build files by pathname relative to the
+  current directory.  Values in |data| are build file contents.  For each
+  |data| value with a "targets" key, the value of the "targets" key is taken
+  as a list containing target dicts.  Each target's fully-qualified name is
+  constructed from the pathname of the build file (|data| key) and its
+  "target_name" property.  These fully-qualified names are used as the keys
+  in the returned dict.  These keys provide access to the target dicts,
+  the dicts in the "targets" lists.
+  """
+
+    targets = {}
+    for build_file in data["target_build_files"]:
+        for target in data[build_file].get("targets", []):
+            target_name = gyp.common.QualifiedTarget(
+                build_file, target["target_name"], target["toolset"]
+            )
+            if target_name in targets:
+                raise GypError("Duplicate target definitions for " + target_name)
+            targets[target_name] = target
+
+    return targets
+
+
+def QualifyDependencies(targets):
+    """Make dependency links fully-qualified relative to the current directory.
+
+  |targets| is a dict mapping fully-qualified target names to their target
+  dicts.  For each target in this dict, keys known to contain dependency
+  links are examined, and any dependencies referenced will be rewritten
+  so that they are fully-qualified and relative to the current directory.
+  All rewritten dependencies are suitable for use as keys to |targets| or a
+  similar dict.
+  """
+
+    all_dependency_sections = [
+        dep + op for dep in dependency_sections for op in ("", "!", "/")
+    ]
+
+    for target, target_dict in targets.items():
+        target_build_file = gyp.common.BuildFile(target)
+        toolset = target_dict["toolset"]
+        for dependency_key in all_dependency_sections:
+            dependencies = target_dict.get(dependency_key, [])
+            for index, dep in enumerate(dependencies):
+                dep_file, dep_target, dep_toolset = gyp.common.ResolveTarget(
+                    target_build_file, dep, toolset
+                )
+                if not multiple_toolsets:
+                    # Ignore toolset specification in the dependency if it is specified.
+                    dep_toolset = toolset
+                dependency = gyp.common.QualifiedTarget(
+                    dep_file, dep_target, dep_toolset
+                )
+                dependencies[index] = dependency
+
+                # Make sure anything appearing in a list other than "dependencies" also
+                # appears in the "dependencies" list.
+                if (
+                    dependency_key != "dependencies"
+                    and dependency not in target_dict["dependencies"]
+                ):
+                    raise GypError(
+                        "Found "
+                        + dependency
+                        + " in "
+                        + dependency_key
+                        + " of "
+                        + target
+                        + ", but not in dependencies"
+                    )
+
+
+def ExpandWildcardDependencies(targets, data):
+    """Expands dependencies specified as build_file:*.
+
+  For each target in |targets|, examines sections containing links to other
+  targets.  If any such section contains a link of the form build_file:*, it
+  is taken as a wildcard link, and is expanded to list each target in
+  build_file.  The |data| dict provides access to build file dicts.
+
+  Any target that does not wish to be included by wildcard can provide an
+  optional "suppress_wildcard" key in its target dict.  When present and
+  true, a wildcard dependency link will not include such targets.
+
+  All dependency names, including the keys to |targets| and the values in each
+  dependency list, must be qualified when this function is called.
+  """
+
+    for target, target_dict in targets.items():
+        target_build_file = gyp.common.BuildFile(target)
+        for dependency_key in dependency_sections:
+            dependencies = target_dict.get(dependency_key, [])
+
+            # Loop this way instead of "for dependency in" or "for index in range"
+            # because the dependencies list will be modified within the loop body.
+            index = 0
+            while index < len(dependencies):
+                (
+                    dependency_build_file,
+                    dependency_target,
+                    dependency_toolset,
+                ) = gyp.common.ParseQualifiedTarget(dependencies[index])
+                if dependency_target != "*" and dependency_toolset != "*":
+                    # Not a wildcard.  Keep it moving.
+                    index = index + 1
+                    continue
+
+                if dependency_build_file == target_build_file:
+                    # It's an error for a target to depend on all other targets in
+                    # the same file, because a target cannot depend on itself.
+                    raise GypError(
+                        "Found wildcard in "
+                        + dependency_key
+                        + " of "
+                        + target
+                        + " referring to same build file"
+                    )
+
+                # Take the wildcard out and adjust the index so that the next
+                # dependency in the list will be processed the next time through the
+                # loop.
+                del dependencies[index]
+                index = index - 1
+
+                # Loop through the targets in the other build file, adding them to
+                # this target's list of dependencies in place of the removed
+                # wildcard.
+                dependency_target_dicts = data[dependency_build_file]["targets"]
+                for dependency_target_dict in dependency_target_dicts:
+                    if int(dependency_target_dict.get("suppress_wildcard", False)):
+                        continue
+                    dependency_target_name = dependency_target_dict["target_name"]
+                    if (
+                        dependency_target != "*"
+                        and dependency_target != dependency_target_name
+                    ):
+                        continue
+                    dependency_target_toolset = dependency_target_dict["toolset"]
+                    if (
+                        dependency_toolset != "*"
+                        and dependency_toolset != dependency_target_toolset
+                    ):
+                        continue
+                    dependency = gyp.common.QualifiedTarget(
+                        dependency_build_file,
+                        dependency_target_name,
+                        dependency_target_toolset,
+                    )
+                    index = index + 1
+                    dependencies.insert(index, dependency)
+
+                index = index + 1
+
+
+def Unify(items):
+    """Removes duplicate elements from items, keeping the first element."""
+    seen = {}
+    return [seen.setdefault(e, e) for e in items if e not in seen]
+
+
+def RemoveDuplicateDependencies(targets):
+    """Makes sure every dependency appears only once in all targets's dependency
+  lists."""
+    for target_name, target_dict in targets.items():
+        for dependency_key in dependency_sections:
+            dependencies = target_dict.get(dependency_key, [])
+            if dependencies:
+                target_dict[dependency_key] = Unify(dependencies)
+
+
+def Filter(items, item):
+    """Removes item from items."""
+    res = {}
+    return [res.setdefault(e, e) for e in items if e != item]
+
+
+def RemoveSelfDependencies(targets):
+    """Remove self dependencies from targets that have the prune_self_dependency
+  variable set."""
+    for target_name, target_dict in targets.items():
+        for dependency_key in dependency_sections:
+            dependencies = target_dict.get(dependency_key, [])
+            if dependencies:
+                for t in dependencies:
+                    if t == target_name:
+                        if (
+                            targets[t]
+                            .get("variables", {})
+                            .get("prune_self_dependency", 0)
+                        ):
+                            target_dict[dependency_key] = Filter(
+                                dependencies, target_name
+                            )
+
+
+def RemoveLinkDependenciesFromNoneTargets(targets):
+    """Remove dependencies having the 'link_dependency' attribute from the 'none'
+  targets."""
+    for target_name, target_dict in targets.items():
+        for dependency_key in dependency_sections:
+            dependencies = target_dict.get(dependency_key, [])
+            if dependencies:
+                for t in dependencies:
+                    if target_dict.get("type", None) == "none":
+                        if targets[t].get("variables", {}).get("link_dependency", 0):
+                            target_dict[dependency_key] = Filter(
+                                target_dict[dependency_key], t
+                            )
+
+
+class DependencyGraphNode:
+    """
+
+  Attributes:
+    ref: A reference to an object that this DependencyGraphNode represents.
+    dependencies: List of DependencyGraphNodes on which this one depends.
+    dependents: List of DependencyGraphNodes that depend on this one.
+  """
+
+    class CircularException(GypError):
+        pass
+
+    def __init__(self, ref):
+        self.ref = ref
+        self.dependencies = []
+        self.dependents = []
+
+    def __repr__(self):
+        return "<DependencyGraphNode: %r>" % self.ref
+
+    def FlattenToList(self):
+        # flat_list is the sorted list of dependencies - actually, the list items
+        # are the "ref" attributes of DependencyGraphNodes.  Every target will
+        # appear in flat_list after all of its dependencies, and before all of its
+        # dependents.
+        flat_list = OrderedSet()
+
+        def ExtractNodeRef(node):
+            """Extracts the object that the node represents from the given node."""
+            return node.ref
+
+        # in_degree_zeros is the list of DependencyGraphNodes that have no
+        # dependencies not in flat_list.  Initially, it is a copy of the children
+        # of this node, because when the graph was built, nodes with no
+        # dependencies were made implicit dependents of the root node.
+        in_degree_zeros = sorted(self.dependents[:], key=ExtractNodeRef)
+
+        while in_degree_zeros:
+            # Nodes in in_degree_zeros have no dependencies not in flat_list, so they
+            # can be appended to flat_list.  Take these nodes out of in_degree_zeros
+            # as work progresses, so that the next node to process from the list can
+            # always be accessed at a consistent position.
+            node = in_degree_zeros.pop()
+            flat_list.add(node.ref)
+
+            # Look at dependents of the node just added to flat_list.  Some of them
+            # may now belong in in_degree_zeros.
+            for node_dependent in sorted(node.dependents, key=ExtractNodeRef):
+                is_in_degree_zero = True
+                # TODO: We want to check through the
+                # node_dependent.dependencies list but if it's long and we
+                # always start at the beginning, then we get O(n^2) behaviour.
+                for node_dependent_dependency in sorted(
+                    node_dependent.dependencies, key=ExtractNodeRef
+                ):
+                    if node_dependent_dependency.ref not in flat_list:
+                        # The dependent one or more dependencies not in flat_list.
+                        # There will be more chances to add it to flat_list
+                        # when examining it again as a dependent of those other
+                        # dependencies, provided that there are no cycles.
+                        is_in_degree_zero = False
+                        break
+
+                if is_in_degree_zero:
+                    # All of the dependent's dependencies are already in flat_list.  Add
+                    # it to in_degree_zeros where it will be processed in a future
+                    # iteration of the outer loop.
+                    in_degree_zeros += [node_dependent]
+
+        return list(flat_list)
+
+    def FindCycles(self):
+        """
+    Returns a list of cycles in the graph, where each cycle is its own list.
+    """
+        results = []
+        visited = set()
+
+        def Visit(node, path):
+            for child in node.dependents:
+                if child in path:
+                    results.append([child] + path[: path.index(child) + 1])
+                elif child not in visited:
+                    visited.add(child)
+                    Visit(child, [child] + path)
+
+        visited.add(self)
+        Visit(self, [self])
+
+        return results
+
+    def DirectDependencies(self, dependencies=None):
+        """Returns a list of just direct dependencies."""
+        if dependencies is None:
+            dependencies = []
+
+        for dependency in self.dependencies:
+            # Check for None, corresponding to the root node.
+            if dependency.ref and dependency.ref not in dependencies:
+                dependencies.append(dependency.ref)
+
+        return dependencies
+
+    def _AddImportedDependencies(self, targets, dependencies=None):
+        """Given a list of direct dependencies, adds indirect dependencies that
+    other dependencies have declared to export their settings.
+
+    This method does not operate on self.  Rather, it operates on the list
+    of dependencies in the |dependencies| argument.  For each dependency in
+    that list, if any declares that it exports the settings of one of its
+    own dependencies, those dependencies whose settings are "passed through"
+    are added to the list.  As new items are added to the list, they too will
+    be processed, so it is possible to import settings through multiple levels
+    of dependencies.
+
+    This method is not terribly useful on its own, it depends on being
+    "primed" with a list of direct dependencies such as one provided by
+    DirectDependencies.  DirectAndImportedDependencies is intended to be the
+    public entry point.
+    """
+
+        if dependencies is None:
+            dependencies = []
+
+        index = 0
+        while index < len(dependencies):
+            dependency = dependencies[index]
+            dependency_dict = targets[dependency]
+            # Add any dependencies whose settings should be imported to the list
+            # if not already present.  Newly-added items will be checked for
+            # their own imports when the list iteration reaches them.
+            # Rather than simply appending new items, insert them after the
+            # dependency that exported them.  This is done to more closely match
+            # the depth-first method used by DeepDependencies.
+            add_index = 1
+            for imported_dependency in dependency_dict.get(
+                "export_dependent_settings", []
+            ):
+                if imported_dependency not in dependencies:
+                    dependencies.insert(index + add_index, imported_dependency)
+                    add_index = add_index + 1
+            index = index + 1
+
+        return dependencies
+
+    def DirectAndImportedDependencies(self, targets, dependencies=None):
+        """Returns a list of a target's direct dependencies and all indirect
+    dependencies that a dependency has advertised settings should be exported
+    through the dependency for.
+    """
+
+        dependencies = self.DirectDependencies(dependencies)
+        return self._AddImportedDependencies(targets, dependencies)
+
+    def DeepDependencies(self, dependencies=None):
+        """Returns an OrderedSet of all of a target's dependencies, recursively."""
+        if dependencies is None:
+            # Using a list to get ordered output and a set to do fast "is it
+            # already added" checks.
+            dependencies = OrderedSet()
+
+        for dependency in self.dependencies:
+            # Check for None, corresponding to the root node.
+            if dependency.ref is None:
+                continue
+            if dependency.ref not in dependencies:
+                dependency.DeepDependencies(dependencies)
+                dependencies.add(dependency.ref)
+
+        return dependencies
+
+    def _LinkDependenciesInternal(
+        self, targets, include_shared_libraries, dependencies=None, initial=True
+    ):
+        """Returns an OrderedSet of dependency targets that are linked
+    into this target.
+
+    This function has a split personality, depending on the setting of
+    |initial|.  Outside callers should always leave |initial| at its default
+    setting.
+
+    When adding a target to the list of dependencies, this function will
+    recurse into itself with |initial| set to False, to collect dependencies
+    that are linked into the linkable target for which the list is being built.
+
+    If |include_shared_libraries| is False, the resulting dependencies will not
+    include shared_library targets that are linked into this target.
+    """
+        if dependencies is None:
+            # Using a list to get ordered output and a set to do fast "is it
+            # already added" checks.
+            dependencies = OrderedSet()
+
+        # Check for None, corresponding to the root node.
+        if self.ref is None:
+            return dependencies
+
+        # It's kind of sucky that |targets| has to be passed into this function,
+        # but that's presently the easiest way to access the target dicts so that
+        # this function can find target types.
+
+        if "target_name" not in targets[self.ref]:
+            raise GypError("Missing 'target_name' field in target.")
+
+        if "type" not in targets[self.ref]:
+            raise GypError(
+                "Missing 'type' field in target %s" % targets[self.ref]["target_name"]
+            )
+
+        target_type = targets[self.ref]["type"]
+
+        is_linkable = target_type in linkable_types
+
+        if initial and not is_linkable:
+            # If this is the first target being examined and it's not linkable,
+            # return an empty list of link dependencies, because the link
+            # dependencies are intended to apply to the target itself (initial is
+            # True) and this target won't be linked.
+            return dependencies
+
+        # Don't traverse 'none' targets if explicitly excluded.
+        if target_type == "none" and not targets[self.ref].get(
+            "dependencies_traverse", True
+        ):
+            dependencies.add(self.ref)
+            return dependencies
+
+        # Executables, mac kernel extensions, windows drivers and loadable modules
+        # are already fully and finally linked. Nothing else can be a link
+        # dependency of them, there can only be dependencies in the sense that a
+        # dependent target might run an executable or load the loadable_module.
+        if not initial and target_type in (
+            "executable",
+            "loadable_module",
+            "mac_kernel_extension",
+            "windows_driver",
+        ):
+            return dependencies
+
+        # Shared libraries are already fully linked.  They should only be included
+        # in |dependencies| when adjusting static library dependencies (in order to
+        # link against the shared_library's import lib), but should not be included
+        # in |dependencies| when propagating link_settings.
+        # The |include_shared_libraries| flag controls which of these two cases we
+        # are handling.
+        if (
+            not initial
+            and target_type == "shared_library"
+            and not include_shared_libraries
+        ):
+            return dependencies
+
+        # The target is linkable, add it to the list of link dependencies.
+        if self.ref not in dependencies:
+            dependencies.add(self.ref)
+            if initial or not is_linkable:
+                # If this is a subsequent target and it's linkable, don't look any
+                # further for linkable dependencies, as they'll already be linked into
+                # this target linkable.  Always look at dependencies of the initial
+                # target, and always look at dependencies of non-linkables.
+                for dependency in self.dependencies:
+                    dependency._LinkDependenciesInternal(
+                        targets, include_shared_libraries, dependencies, False
+                    )
+
+        return dependencies
+
+    def DependenciesForLinkSettings(self, targets):
+        """
+    Returns a list of dependency targets whose link_settings should be merged
+    into this target.
+    """
+
+        # TODO(sbaig) Currently, chrome depends on the bug that shared libraries'
+        # link_settings are propagated.  So for now, we will allow it, unless the
+        # 'allow_sharedlib_linksettings_propagation' flag is explicitly set to
+        # False.  Once chrome is fixed, we can remove this flag.
+        include_shared_libraries = targets[self.ref].get(
+            "allow_sharedlib_linksettings_propagation", True
+        )
+        return self._LinkDependenciesInternal(targets, include_shared_libraries)
+
+    def DependenciesToLinkAgainst(self, targets):
+        """
+    Returns a list of dependency targets that are linked into this target.
+    """
+        return self._LinkDependenciesInternal(targets, True)
+
+
+def BuildDependencyList(targets):
+    # Create a DependencyGraphNode for each target.  Put it into a dict for easy
+    # access.
+    dependency_nodes = {}
+    for target, spec in targets.items():
+        if target not in dependency_nodes:
+            dependency_nodes[target] = DependencyGraphNode(target)
+
+    # Set up the dependency links.  Targets that have no dependencies are treated
+    # as dependent on root_node.
+    root_node = DependencyGraphNode(None)
+    for target, spec in targets.items():
+        target_node = dependency_nodes[target]
+        dependencies = spec.get("dependencies")
+        if not dependencies:
+            target_node.dependencies = [root_node]
+            root_node.dependents.append(target_node)
+        else:
+            for dependency in dependencies:
+                dependency_node = dependency_nodes.get(dependency)
+                if not dependency_node:
+                    raise GypError(
+                        "Dependency '%s' not found while "
+                        "trying to load target %s" % (dependency, target)
+                    )
+                target_node.dependencies.append(dependency_node)
+                dependency_node.dependents.append(target_node)
+
+    flat_list = root_node.FlattenToList()
+
+    # If there's anything left unvisited, there must be a circular dependency
+    # (cycle).
+    if len(flat_list) != len(targets):
+        if not root_node.dependents:
+            # If all targets have dependencies, add the first target as a dependent
+            # of root_node so that the cycle can be discovered from root_node.
+            target = next(iter(targets))
+            target_node = dependency_nodes[target]
+            target_node.dependencies.append(root_node)
+            root_node.dependents.append(target_node)
+
+        cycles = []
+        for cycle in root_node.FindCycles():
+            paths = [node.ref for node in cycle]
+            cycles.append("Cycle: %s" % " -> ".join(paths))
+        raise DependencyGraphNode.CircularException(
+            "Cycles in dependency graph detected:\n" + "\n".join(cycles)
+        )
+
+    return [dependency_nodes, flat_list]
+
+
+def VerifyNoGYPFileCircularDependencies(targets):
+    # Create a DependencyGraphNode for each gyp file containing a target.  Put
+    # it into a dict for easy access.
+    dependency_nodes = {}
+    for target in targets:
+        build_file = gyp.common.BuildFile(target)
+        if build_file not in dependency_nodes:
+            dependency_nodes[build_file] = DependencyGraphNode(build_file)
+
+    # Set up the dependency links.
+    for target, spec in targets.items():
+        build_file = gyp.common.BuildFile(target)
+        build_file_node = dependency_nodes[build_file]
+        target_dependencies = spec.get("dependencies", [])
+        for dependency in target_dependencies:
+            try:
+                dependency_build_file = gyp.common.BuildFile(dependency)
+            except GypError as e:
+                gyp.common.ExceptionAppend(
+                    e, "while computing dependencies of .gyp file %s" % build_file
+                )
+                raise
+
+            if dependency_build_file == build_file:
+                # A .gyp file is allowed to refer back to itself.
+                continue
+            dependency_node = dependency_nodes.get(dependency_build_file)
+            if not dependency_node:
+                raise GypError("Dependency '%s' not found" % dependency_build_file)
+            if dependency_node not in build_file_node.dependencies:
+                build_file_node.dependencies.append(dependency_node)
+                dependency_node.dependents.append(build_file_node)
+
+    # Files that have no dependencies are treated as dependent on root_node.
+    root_node = DependencyGraphNode(None)
+    for build_file_node in dependency_nodes.values():
+        if len(build_file_node.dependencies) == 0:
+            build_file_node.dependencies.append(root_node)
+            root_node.dependents.append(build_file_node)
+
+    flat_list = root_node.FlattenToList()
+
+    # If there's anything left unvisited, there must be a circular dependency
+    # (cycle).
+    if len(flat_list) != len(dependency_nodes):
+        if not root_node.dependents:
+            # If all files have dependencies, add the first file as a dependent
+            # of root_node so that the cycle can be discovered from root_node.
+            file_node = next(iter(dependency_nodes.values()))
+            file_node.dependencies.append(root_node)
+            root_node.dependents.append(file_node)
+        cycles = []
+        for cycle in root_node.FindCycles():
+            paths = [node.ref for node in cycle]
+            cycles.append("Cycle: %s" % " -> ".join(paths))
+        raise DependencyGraphNode.CircularException(
+            "Cycles in .gyp file dependency graph detected:\n" + "\n".join(cycles)
+        )
+
+
+def DoDependentSettings(key, flat_list, targets, dependency_nodes):
+    # key should be one of all_dependent_settings, direct_dependent_settings,
+    # or link_settings.
+
+    for target in flat_list:
+        target_dict = targets[target]
+        build_file = gyp.common.BuildFile(target)
+
+        if key == "all_dependent_settings":
+            dependencies = dependency_nodes[target].DeepDependencies()
+        elif key == "direct_dependent_settings":
+            dependencies = dependency_nodes[target].DirectAndImportedDependencies(
+                targets
+            )
+        elif key == "link_settings":
+            dependencies = dependency_nodes[target].DependenciesForLinkSettings(targets)
+        else:
+            raise GypError(
+                "DoDependentSettings doesn't know how to determine "
+                "dependencies for " + key
+            )
+
+        for dependency in dependencies:
+            dependency_dict = targets[dependency]
+            if key not in dependency_dict:
+                continue
+            dependency_build_file = gyp.common.BuildFile(dependency)
+            MergeDicts(
+                target_dict, dependency_dict[key], build_file, dependency_build_file
+            )
+
+
+def AdjustStaticLibraryDependencies(
+    flat_list, targets, dependency_nodes, sort_dependencies
+):
+    # Recompute target "dependencies" properties.  For each static library
+    # target, remove "dependencies" entries referring to other static libraries,
+    # unless the dependency has the "hard_dependency" attribute set.  For each
+    # linkable target, add a "dependencies" entry referring to all of the
+    # target's computed list of link dependencies (including static libraries
+    # if no such entry is already present.
+    for target in flat_list:
+        target_dict = targets[target]
+        target_type = target_dict["type"]
+
+        if target_type == "static_library":
+            if "dependencies" not in target_dict:
+                continue
+
+            target_dict["dependencies_original"] = target_dict.get("dependencies", [])[
+                :
+            ]
+
+            # A static library should not depend on another static library unless
+            # the dependency relationship is "hard," which should only be done when
+            # a dependent relies on some side effect other than just the build
+            # product, like a rule or action output. Further, if a target has a
+            # non-hard dependency, but that dependency exports a hard dependency,
+            # the non-hard dependency can safely be removed, but the exported hard
+            # dependency must be added to the target to keep the same dependency
+            # ordering.
+            dependencies = dependency_nodes[target].DirectAndImportedDependencies(
+                targets
+            )
+            index = 0
+            while index < len(dependencies):
+                dependency = dependencies[index]
+                dependency_dict = targets[dependency]
+
+                # Remove every non-hard static library dependency and remove every
+                # non-static library dependency that isn't a direct dependency.
+                if (
+                    dependency_dict["type"] == "static_library"
+                    and not dependency_dict.get("hard_dependency", False)
+                ) or (
+                    dependency_dict["type"] != "static_library"
+                    and dependency not in target_dict["dependencies"]
+                ):
+                    # Take the dependency out of the list, and don't increment index
+                    # because the next dependency to analyze will shift into the index
+                    # formerly occupied by the one being removed.
+                    del dependencies[index]
+                else:
+                    index = index + 1
+
+            # Update the dependencies. If the dependencies list is empty, it's not
+            # needed, so unhook it.
+            if len(dependencies) > 0:
+                target_dict["dependencies"] = dependencies
+            else:
+                del target_dict["dependencies"]
+
+        elif target_type in linkable_types:
+            # Get a list of dependency targets that should be linked into this
+            # target.  Add them to the dependencies list if they're not already
+            # present.
+
+            link_dependencies = dependency_nodes[target].DependenciesToLinkAgainst(
+                targets
+            )
+            for dependency in link_dependencies:
+                if dependency == target:
+                    continue
+                if "dependencies" not in target_dict:
+                    target_dict["dependencies"] = []
+                if dependency not in target_dict["dependencies"]:
+                    target_dict["dependencies"].append(dependency)
+            # Sort the dependencies list in the order from dependents to dependencies.
+            # e.g. If A and B depend on C and C depends on D, sort them in A, B, C, D.
+            # Note: flat_list is already sorted in the order from dependencies to
+            # dependents.
+            if sort_dependencies and "dependencies" in target_dict:
+                target_dict["dependencies"] = [
+                    dep
+                    for dep in reversed(flat_list)
+                    if dep in target_dict["dependencies"]
+                ]
+
+
+# Initialize this here to speed up MakePathRelative.
+exception_re = re.compile(r"""["']?[-/$<>^]""")
+
+
+def MakePathRelative(to_file, fro_file, item):
+    # If item is a relative path, it's relative to the build file dict that it's
+    # coming from.  Fix it up to make it relative to the build file dict that
+    # it's going into.
+    # Exception: any |item| that begins with these special characters is
+    # returned without modification.
+    #   /   Used when a path is already absolute (shortcut optimization;
+    #       such paths would be returned as absolute anyway)
+    #   $   Used for build environment variables
+    #   -   Used for some build environment flags (such as -lapr-1 in a
+    #       "libraries" section)
+    #   <   Used for our own variable and command expansions (see ExpandVariables)
+    #   >   Used for our own variable and command expansions (see ExpandVariables)
+    #   ^   Used for our own variable and command expansions (see ExpandVariables)
+    #
+    #   "/' Used when a value is quoted.  If these are present, then we
+    #       check the second character instead.
+    #
+    if to_file == fro_file or exception_re.match(item):
+        return item
+    else:
+        # TODO(dglazkov) The backslash/forward-slash replacement at the end is a
+        # temporary measure. This should really be addressed by keeping all paths
+        # in POSIX until actual project generation.
+        ret = os.path.normpath(
+            os.path.join(
+                gyp.common.RelativePath(
+                    os.path.dirname(fro_file), os.path.dirname(to_file)
+                ),
+                item,
+            )
+        ).replace("\\", "/")
+        if item.endswith("/"):
+            ret += "/"
+        return ret
+
+
+def MergeLists(to, fro, to_file, fro_file, is_paths=False, append=True):
+    # Python documentation recommends objects which do not support hash
+    # set this value to None. Python library objects follow this rule.
+    def is_hashable(val):
+        return val.__hash__
+
+    # If x is hashable, returns whether x is in s. Else returns whether x is in items.
+    def is_in_set_or_list(x, s, items):
+        if is_hashable(x):
+            return x in s
+        return x in items
+
+    prepend_index = 0
+
+    # Make membership testing of hashables in |to| (in particular, strings)
+    # faster.
+    hashable_to_set = {x for x in to if is_hashable(x)}
+    for item in fro:
+        singleton = False
+        if type(item) in (str, int):
+            # The cheap and easy case.
+            if is_paths:
+                to_item = MakePathRelative(to_file, fro_file, item)
+            else:
+                to_item = item
+
+            if not (type(item) is str and item.startswith("-")):
+                # Any string that doesn't begin with a "-" is a singleton - it can
+                # only appear once in a list, to be enforced by the list merge append
+                # or prepend.
+                singleton = True
+        elif type(item) is dict:
+            # Make a copy of the dictionary, continuing to look for paths to fix.
+            # The other intelligent aspects of merge processing won't apply because
+            # item is being merged into an empty dict.
+            to_item = {}
+            MergeDicts(to_item, item, to_file, fro_file)
+        elif type(item) is list:
+            # Recurse, making a copy of the list.  If the list contains any
+            # descendant dicts, path fixing will occur.  Note that here, custom
+            # values for is_paths and append are dropped; those are only to be
+            # applied to |to| and |fro|, not sublists of |fro|.  append shouldn't
+            # matter anyway because the new |to_item| list is empty.
+            to_item = []
+            MergeLists(to_item, item, to_file, fro_file)
+        else:
+            raise TypeError(
+                "Attempt to merge list item of unsupported type "
+                + item.__class__.__name__
+            )
+
+        if append:
+            # If appending a singleton that's already in the list, don't append.
+            # This ensures that the earliest occurrence of the item will stay put.
+            if not singleton or not is_in_set_or_list(to_item, hashable_to_set, to):
+                to.append(to_item)
+                if is_hashable(to_item):
+                    hashable_to_set.add(to_item)
+        else:
+            # If prepending a singleton that's already in the list, remove the
+            # existing instance and proceed with the prepend.  This ensures that the
+            # item appears at the earliest possible position in the list.
+            while singleton and to_item in to:
+                to.remove(to_item)
+
+            # Don't just insert everything at index 0.  That would prepend the new
+            # items to the list in reverse order, which would be an unwelcome
+            # surprise.
+            to.insert(prepend_index, to_item)
+            if is_hashable(to_item):
+                hashable_to_set.add(to_item)
+            prepend_index = prepend_index + 1
+
+
+def MergeDicts(to, fro, to_file, fro_file):
+    # I wanted to name the parameter "from" but it's a Python keyword...
+    for k, v in fro.items():
+        # It would be nice to do "if not k in to: to[k] = v" but that wouldn't give
+        # copy semantics.  Something else may want to merge from the |fro| dict
+        # later, and having the same dict ref pointed to twice in the tree isn't
+        # what anyone wants considering that the dicts may subsequently be
+        # modified.
+        if k in to:
+            bad_merge = False
+            if type(v) in (str, int):
+                if type(to[k]) not in (str, int):
+                    bad_merge = True
+            elif not isinstance(v, type(to[k])):
+                bad_merge = True
+
+            if bad_merge:
+                raise TypeError(
+                    "Attempt to merge dict value of type "
+                    + v.__class__.__name__
+                    + " into incompatible type "
+                    + to[k].__class__.__name__
+                    + " for key "
+                    + k
+                )
+        if type(v) in (str, int):
+            # Overwrite the existing value, if any.  Cheap and easy.
+            is_path = IsPathSection(k)
+            if is_path:
+                to[k] = MakePathRelative(to_file, fro_file, v)
+            else:
+                to[k] = v
+        elif type(v) is dict:
+            # Recurse, guaranteeing copies will be made of objects that require it.
+            if k not in to:
+                to[k] = {}
+            MergeDicts(to[k], v, to_file, fro_file)
+        elif type(v) is list:
+            # Lists in dicts can be merged with different policies, depending on
+            # how the key in the "from" dict (k, the from-key) is written.
+            #
+            # If the from-key has          ...the to-list will have this action
+            # this character appended:...     applied when receiving the from-list:
+            #                           =  replace
+            #                           +  prepend
+            #                           ?  set, only if to-list does not yet exist
+            #                      (none)  append
+            #
+            # This logic is list-specific, but since it relies on the associated
+            # dict key, it's checked in this dict-oriented function.
+            ext = k[-1]
+            append = True
+            if ext == "=":
+                list_base = k[:-1]
+                lists_incompatible = [list_base, list_base + "?"]
+                to[list_base] = []
+            elif ext == "+":
+                list_base = k[:-1]
+                lists_incompatible = [list_base + "=", list_base + "?"]
+                append = False
+            elif ext == "?":
+                list_base = k[:-1]
+                lists_incompatible = [list_base, list_base + "=", list_base + "+"]
+            else:
+                list_base = k
+                lists_incompatible = [list_base + "=", list_base + "?"]
+
+            # Some combinations of merge policies appearing together are meaningless.
+            # It's stupid to replace and append simultaneously, for example.  Append
+            # and prepend are the only policies that can coexist.
+            for list_incompatible in lists_incompatible:
+                if list_incompatible in fro:
+                    raise GypError(
+                        "Incompatible list policies " + k + " and " + list_incompatible
+                    )
+
+            if list_base in to:
+                if ext == "?":
+                    # If the key ends in "?", the list will only be merged if it doesn't
+                    # already exist.
+                    continue
+                elif type(to[list_base]) is not list:
+                    # This may not have been checked above if merging in a list with an
+                    # extension character.
+                    raise TypeError(
+                        "Attempt to merge dict value of type "
+                        + v.__class__.__name__
+                        + " into incompatible type "
+                        + to[list_base].__class__.__name__
+                        + " for key "
+                        + list_base
+                        + "("
+                        + k
+                        + ")"
+                    )
+            else:
+                to[list_base] = []
+
+            # Call MergeLists, which will make copies of objects that require it.
+            # MergeLists can recurse back into MergeDicts, although this will be
+            # to make copies of dicts (with paths fixed), there will be no
+            # subsequent dict "merging" once entering a list because lists are
+            # always replaced, appended to, or prepended to.
+            is_paths = IsPathSection(list_base)
+            MergeLists(to[list_base], v, to_file, fro_file, is_paths, append)
+        else:
+            raise TypeError(
+                "Attempt to merge dict value of unsupported type "
+                + v.__class__.__name__
+                + " for key "
+                + k
+            )
+
+
+def MergeConfigWithInheritance(
+    new_configuration_dict, build_file, target_dict, configuration, visited
+):
+    # Skip if previously visited.
+    if configuration in visited:
+        return
+
+    # Look at this configuration.
+    configuration_dict = target_dict["configurations"][configuration]
+
+    # Merge in parents.
+    for parent in configuration_dict.get("inherit_from", []):
+        MergeConfigWithInheritance(
+            new_configuration_dict,
+            build_file,
+            target_dict,
+            parent,
+            visited + [configuration],
+        )
+
+    # Merge it into the new config.
+    MergeDicts(new_configuration_dict, configuration_dict, build_file, build_file)
+
+    # Drop abstract.
+    if "abstract" in new_configuration_dict:
+        del new_configuration_dict["abstract"]
+
+
+def SetUpConfigurations(target, target_dict):
+    # key_suffixes is a list of key suffixes that might appear on key names.
+    # These suffixes are handled in conditional evaluations (for =, +, and ?)
+    # and rules/exclude processing (for ! and /).  Keys with these suffixes
+    # should be treated the same as keys without.
+    key_suffixes = ["=", "+", "?", "!", "/"]
+
+    build_file = gyp.common.BuildFile(target)
+
+    # Provide a single configuration by default if none exists.
+    # TODO(mark): Signal an error if default_configurations exists but
+    # configurations does not.
+    if "configurations" not in target_dict:
+        target_dict["configurations"] = {"Default": {}}
+    if "default_configuration" not in target_dict:
+        concrete = [
+            i
+            for (i, config) in target_dict["configurations"].items()
+            if not config.get("abstract")
+        ]
+        target_dict["default_configuration"] = sorted(concrete)[0]
+
+    merged_configurations = {}
+    configs = target_dict["configurations"]
+    for (configuration, old_configuration_dict) in configs.items():
+        # Skip abstract configurations (saves work only).
+        if old_configuration_dict.get("abstract"):
+            continue
+        # Configurations inherit (most) settings from the enclosing target scope.
+        # Get the inheritance relationship right by making a copy of the target
+        # dict.
+        new_configuration_dict = {}
+        for (key, target_val) in target_dict.items():
+            key_ext = key[-1:]
+            if key_ext in key_suffixes:
+                key_base = key[:-1]
+            else:
+                key_base = key
+            if key_base not in non_configuration_keys:
+                new_configuration_dict[key] = gyp.simple_copy.deepcopy(target_val)
+
+        # Merge in configuration (with all its parents first).
+        MergeConfigWithInheritance(
+            new_configuration_dict, build_file, target_dict, configuration, []
+        )
+
+        merged_configurations[configuration] = new_configuration_dict
+
+    # Put the new configurations back into the target dict as a configuration.
+    for configuration in merged_configurations.keys():
+        target_dict["configurations"][configuration] = merged_configurations[
+            configuration
+        ]
+
+    # Now drop all the abstract ones.
+    configs = target_dict["configurations"]
+    target_dict["configurations"] = {
+        k: v for k, v in configs.items() if not v.get("abstract")
+    }
+
+    # Now that all of the target's configurations have been built, go through
+    # the target dict's keys and remove everything that's been moved into a
+    # "configurations" section.
+    delete_keys = []
+    for key in target_dict:
+        key_ext = key[-1:]
+        if key_ext in key_suffixes:
+            key_base = key[:-1]
+        else:
+            key_base = key
+        if key_base not in non_configuration_keys:
+            delete_keys.append(key)
+    for key in delete_keys:
+        del target_dict[key]
+
+    # Check the configurations to see if they contain invalid keys.
+    for configuration in target_dict["configurations"].keys():
+        configuration_dict = target_dict["configurations"][configuration]
+        for key in configuration_dict.keys():
+            if key in invalid_configuration_keys:
+                raise GypError(
+                    "%s not allowed in the %s configuration, found in "
+                    "target %s" % (key, configuration, target)
+                )
+
+
+def ProcessListFiltersInDict(name, the_dict):
+    """Process regular expression and exclusion-based filters on lists.
+
+  An exclusion list is in a dict key named with a trailing "!", like
+  "sources!".  Every item in such a list is removed from the associated
+  main list, which in this example, would be "sources".  Removed items are
+  placed into a "sources_excluded" list in the dict.
+
+  Regular expression (regex) filters are contained in dict keys named with a
+  trailing "/", such as "sources/" to operate on the "sources" list.  Regex
+  filters in a dict take the form:
+    'sources/': [ ['exclude', '_(linux|mac|win)\\.cc$'],
+                  ['include', '_mac\\.cc$'] ],
+  The first filter says to exclude all files ending in _linux.cc, _mac.cc, and
+  _win.cc.  The second filter then includes all files ending in _mac.cc that
+  are now or were once in the "sources" list.  Items matching an "exclude"
+  filter are subject to the same processing as would occur if they were listed
+  by name in an exclusion list (ending in "!").  Items matching an "include"
+  filter are brought back into the main list if previously excluded by an
+  exclusion list or exclusion regex filter.  Subsequent matching "exclude"
+  patterns can still cause items to be excluded after matching an "include".
+  """
+
+    # Look through the dictionary for any lists whose keys end in "!" or "/".
+    # These are lists that will be treated as exclude lists and regular
+    # expression-based exclude/include lists.  Collect the lists that are
+    # needed first, looking for the lists that they operate on, and assemble
+    # then into |lists|.  This is done in a separate loop up front, because
+    # the _included and _excluded keys need to be added to the_dict, and that
+    # can't be done while iterating through it.
+
+    lists = []
+    del_lists = []
+    for key, value in the_dict.items():
+        operation = key[-1]
+        if operation != "!" and operation != "/":
+            continue
+
+        if type(value) is not list:
+            raise ValueError(
+                name + " key " + key + " must be list, not " + value.__class__.__name__
+            )
+
+        list_key = key[:-1]
+        if list_key not in the_dict:
+            # This happens when there's a list like "sources!" but no corresponding
+            # "sources" list.  Since there's nothing for it to operate on, queue up
+            # the "sources!" list for deletion now.
+            del_lists.append(key)
+            continue
+
+        if type(the_dict[list_key]) is not list:
+            value = the_dict[list_key]
+            raise ValueError(
+                name
+                + " key "
+                + list_key
+                + " must be list, not "
+                + value.__class__.__name__
+                + " when applying "
+                + {"!": "exclusion", "/": "regex"}[operation]
+            )
+
+        if list_key not in lists:
+            lists.append(list_key)
+
+    # Delete the lists that are known to be unneeded at this point.
+    for del_list in del_lists:
+        del the_dict[del_list]
+
+    for list_key in lists:
+        the_list = the_dict[list_key]
+
+        # Initialize the list_actions list, which is parallel to the_list.  Each
+        # item in list_actions identifies whether the corresponding item in
+        # the_list should be excluded, unconditionally preserved (included), or
+        # whether no exclusion or inclusion has been applied.  Items for which
+        # no exclusion or inclusion has been applied (yet) have value -1, items
+        # excluded have value 0, and items included have value 1.  Includes and
+        # excludes override previous actions.  All items in list_actions are
+        # initialized to -1 because no excludes or includes have been processed
+        # yet.
+        list_actions = list((-1,) * len(the_list))
+
+        exclude_key = list_key + "!"
+        if exclude_key in the_dict:
+            for exclude_item in the_dict[exclude_key]:
+                for index, list_item in enumerate(the_list):
+                    if exclude_item == list_item:
+                        # This item matches the exclude_item, so set its action to 0
+                        # (exclude).
+                        list_actions[index] = 0
+
+            # The "whatever!" list is no longer needed, dump it.
+            del the_dict[exclude_key]
+
+        regex_key = list_key + "/"
+        if regex_key in the_dict:
+            for regex_item in the_dict[regex_key]:
+                [action, pattern] = regex_item
+                pattern_re = re.compile(pattern)
+
+                if action == "exclude":
+                    # This item matches an exclude regex, set its value to 0 (exclude).
+                    action_value = 0
+                elif action == "include":
+                    # This item matches an include regex, set its value to 1 (include).
+                    action_value = 1
+                else:
+                    # This is an action that doesn't make any sense.
+                    raise ValueError(
+                        "Unrecognized action "
+                        + action
+                        + " in "
+                        + name
+                        + " key "
+                        + regex_key
+                    )
+
+                for index, list_item in enumerate(the_list):
+                    if list_actions[index] == action_value:
+                        # Even if the regex matches, nothing will change so continue
+                        # (regex searches are expensive).
+                        continue
+                    if pattern_re.search(list_item):
+                        # Regular expression match.
+                        list_actions[index] = action_value
+
+            # The "whatever/" list is no longer needed, dump it.
+            del the_dict[regex_key]
+
+        # Add excluded items to the excluded list.
+        #
+        # Note that exclude_key ("sources!") is different from excluded_key
+        # ("sources_excluded").  The exclude_key list is input and it was already
+        # processed and deleted; the excluded_key list is output and it's about
+        # to be created.
+        excluded_key = list_key + "_excluded"
+        if excluded_key in the_dict:
+            raise GypError(
+                name + " key " + excluded_key + " must not be present prior "
+                " to applying exclusion/regex filters for " + list_key
+            )
+
+        excluded_list = []
+
+        # Go backwards through the list_actions list so that as items are deleted,
+        # the indices of items that haven't been seen yet don't shift.  That means
+        # that things need to be prepended to excluded_list to maintain them in the
+        # same order that they existed in the_list.
+        for index in range(len(list_actions) - 1, -1, -1):
+            if list_actions[index] == 0:
+                # Dump anything with action 0 (exclude).  Keep anything with action 1
+                # (include) or -1 (no include or exclude seen for the item).
+                excluded_list.insert(0, the_list[index])
+                del the_list[index]
+
+        # If anything was excluded, put the excluded list into the_dict at
+        # excluded_key.
+        if len(excluded_list) > 0:
+            the_dict[excluded_key] = excluded_list
+
+    # Now recurse into subdicts and lists that may contain dicts.
+    for key, value in the_dict.items():
+        if type(value) is dict:
+            ProcessListFiltersInDict(key, value)
+        elif type(value) is list:
+            ProcessListFiltersInList(key, value)
+
+
+def ProcessListFiltersInList(name, the_list):
+    for item in the_list:
+        if type(item) is dict:
+            ProcessListFiltersInDict(name, item)
+        elif type(item) is list:
+            ProcessListFiltersInList(name, item)
+
+
+def ValidateTargetType(target, target_dict):
+    """Ensures the 'type' field on the target is one of the known types.
+
+  Arguments:
+    target: string, name of target.
+    target_dict: dict, target spec.
+
+  Raises an exception on error.
+  """
+    VALID_TARGET_TYPES = (
+        "executable",
+        "loadable_module",
+        "static_library",
+        "shared_library",
+        "mac_kernel_extension",
+        "none",
+        "windows_driver",
+    )
+    target_type = target_dict.get("type", None)
+    if target_type not in VALID_TARGET_TYPES:
+        raise GypError(
+            "Target %s has an invalid target type '%s'.  "
+            "Must be one of %s." % (target, target_type, "/".join(VALID_TARGET_TYPES))
+        )
+    if (
+        target_dict.get("standalone_static_library", 0)
+        and not target_type == "static_library"
+    ):
+        raise GypError(
+            "Target %s has type %s but standalone_static_library flag is"
+            " only valid for static_library type." % (target, target_type)
+        )
+
+
+def ValidateRulesInTarget(target, target_dict, extra_sources_for_rules):
+    """Ensures that the rules sections in target_dict are valid and consistent,
+  and determines which sources they apply to.
+
+  Arguments:
+    target: string, name of target.
+    target_dict: dict, target spec containing "rules" and "sources" lists.
+    extra_sources_for_rules: a list of keys to scan for rule matches in
+        addition to 'sources'.
+  """
+
+    # Dicts to map between values found in rules' 'rule_name' and 'extension'
+    # keys and the rule dicts themselves.
+    rule_names = {}
+    rule_extensions = {}
+
+    rules = target_dict.get("rules", [])
+    for rule in rules:
+        # Make sure that there's no conflict among rule names and extensions.
+        rule_name = rule["rule_name"]
+        if rule_name in rule_names:
+            raise GypError(
+                f"rule {rule_name} exists in duplicate, target {target}"
+            )
+        rule_names[rule_name] = rule
+
+        rule_extension = rule["extension"]
+        if rule_extension.startswith("."):
+            rule_extension = rule_extension[1:]
+        if rule_extension in rule_extensions:
+            raise GypError(
+                (
+                    "extension %s associated with multiple rules, "
+                    + "target %s rules %s and %s"
+                )
+                % (
+                    rule_extension,
+                    target,
+                    rule_extensions[rule_extension]["rule_name"],
+                    rule_name,
+                )
+            )
+        rule_extensions[rule_extension] = rule
+
+        # Make sure rule_sources isn't already there.  It's going to be
+        # created below if needed.
+        if "rule_sources" in rule:
+            raise GypError(
+                "rule_sources must not exist in input, target %s rule %s"
+                % (target, rule_name)
+            )
+
+        rule_sources = []
+        source_keys = ["sources"]
+        source_keys.extend(extra_sources_for_rules)
+        for source_key in source_keys:
+            for source in target_dict.get(source_key, []):
+                (source_root, source_extension) = os.path.splitext(source)
+                if source_extension.startswith("."):
+                    source_extension = source_extension[1:]
+                if source_extension == rule_extension:
+                    rule_sources.append(source)
+
+        if len(rule_sources) > 0:
+            rule["rule_sources"] = rule_sources
+
+
+def ValidateRunAsInTarget(target, target_dict, build_file):
+    target_name = target_dict.get("target_name")
+    run_as = target_dict.get("run_as")
+    if not run_as:
+        return
+    if type(run_as) is not dict:
+        raise GypError(
+            "The 'run_as' in target %s from file %s should be a "
+            "dictionary." % (target_name, build_file)
+        )
+    action = run_as.get("action")
+    if not action:
+        raise GypError(
+            "The 'run_as' in target %s from file %s must have an "
+            "'action' section." % (target_name, build_file)
+        )
+    if type(action) is not list:
+        raise GypError(
+            "The 'action' for 'run_as' in target %s from file %s "
+            "must be a list." % (target_name, build_file)
+        )
+    working_directory = run_as.get("working_directory")
+    if working_directory and type(working_directory) is not str:
+        raise GypError(
+            "The 'working_directory' for 'run_as' in target %s "
+            "in file %s should be a string." % (target_name, build_file)
+        )
+    environment = run_as.get("environment")
+    if environment and type(environment) is not dict:
+        raise GypError(
+            "The 'environment' for 'run_as' in target %s "
+            "in file %s should be a dictionary." % (target_name, build_file)
+        )
+
+
+def ValidateActionsInTarget(target, target_dict, build_file):
+    """Validates the inputs to the actions in a target."""
+    target_name = target_dict.get("target_name")
+    actions = target_dict.get("actions", [])
+    for action in actions:
+        action_name = action.get("action_name")
+        if not action_name:
+            raise GypError(
+                "Anonymous action in target %s.  "
+                "An action must have an 'action_name' field." % target_name
+            )
+        inputs = action.get("inputs", None)
+        if inputs is None:
+            raise GypError("Action in target %s has no inputs." % target_name)
+        action_command = action.get("action")
+        if action_command and not action_command[0]:
+            raise GypError("Empty action as command in target %s." % target_name)
+
+
+def TurnIntIntoStrInDict(the_dict):
+    """Given dict the_dict, recursively converts all integers into strings.
+  """
+    # Use items instead of iteritems because there's no need to try to look at
+    # reinserted keys and their associated values.
+    for k, v in the_dict.items():
+        if type(v) is int:
+            v = str(v)
+            the_dict[k] = v
+        elif type(v) is dict:
+            TurnIntIntoStrInDict(v)
+        elif type(v) is list:
+            TurnIntIntoStrInList(v)
+
+        if type(k) is int:
+            del the_dict[k]
+            the_dict[str(k)] = v
+
+
+def TurnIntIntoStrInList(the_list):
+    """Given list the_list, recursively converts all integers into strings.
+  """
+    for index, item in enumerate(the_list):
+        if type(item) is int:
+            the_list[index] = str(item)
+        elif type(item) is dict:
+            TurnIntIntoStrInDict(item)
+        elif type(item) is list:
+            TurnIntIntoStrInList(item)
+
+
+def PruneUnwantedTargets(targets, flat_list, dependency_nodes, root_targets, data):
+    """Return only the targets that are deep dependencies of |root_targets|."""
+    qualified_root_targets = []
+    for target in root_targets:
+        target = target.strip()
+        qualified_targets = gyp.common.FindQualifiedTargets(target, flat_list)
+        if not qualified_targets:
+            raise GypError("Could not find target %s" % target)
+        qualified_root_targets.extend(qualified_targets)
+
+    wanted_targets = {}
+    for target in qualified_root_targets:
+        wanted_targets[target] = targets[target]
+        for dependency in dependency_nodes[target].DeepDependencies():
+            wanted_targets[dependency] = targets[dependency]
+
+    wanted_flat_list = [t for t in flat_list if t in wanted_targets]
+
+    # Prune unwanted targets from each build_file's data dict.
+    for build_file in data["target_build_files"]:
+        if "targets" not in data[build_file]:
+            continue
+        new_targets = []
+        for target in data[build_file]["targets"]:
+            qualified_name = gyp.common.QualifiedTarget(
+                build_file, target["target_name"], target["toolset"]
+            )
+            if qualified_name in wanted_targets:
+                new_targets.append(target)
+        data[build_file]["targets"] = new_targets
+
+    return wanted_targets, wanted_flat_list
+
+
+def VerifyNoCollidingTargets(targets):
+    """Verify that no two targets in the same directory share the same name.
+
+  Arguments:
+    targets: A list of targets in the form 'path/to/file.gyp:target_name'.
+  """
+    # Keep a dict going from 'subdirectory:target_name' to 'foo.gyp'.
+    used = {}
+    for target in targets:
+        # Separate out 'path/to/file.gyp, 'target_name' from
+        # 'path/to/file.gyp:target_name'.
+        path, name = target.rsplit(":", 1)
+        # Separate out 'path/to', 'file.gyp' from 'path/to/file.gyp'.
+        subdir, gyp = os.path.split(path)
+        # Use '.' for the current directory '', so that the error messages make
+        # more sense.
+        if not subdir:
+            subdir = "."
+        # Prepare a key like 'path/to:target_name'.
+        key = subdir + ":" + name
+        if key in used:
+            # Complain if this target is already used.
+            raise GypError(
+                'Duplicate target name "%s" in directory "%s" used both '
+                'in "%s" and "%s".' % (name, subdir, gyp, used[key])
+            )
+        used[key] = gyp
+
+
+def SetGeneratorGlobals(generator_input_info):
+    # Set up path_sections and non_configuration_keys with the default data plus
+    # the generator-specific data.
+    global path_sections
+    path_sections = set(base_path_sections)
+    path_sections.update(generator_input_info["path_sections"])
+
+    global non_configuration_keys
+    non_configuration_keys = base_non_configuration_keys[:]
+    non_configuration_keys.extend(generator_input_info["non_configuration_keys"])
+
+    global multiple_toolsets
+    multiple_toolsets = generator_input_info["generator_supports_multiple_toolsets"]
+
+    global generator_filelist_paths
+    generator_filelist_paths = generator_input_info["generator_filelist_paths"]
+
+
+def Load(
+    build_files,
+    variables,
+    includes,
+    depth,
+    generator_input_info,
+    check,
+    circular_check,
+    parallel,
+    root_targets,
+):
+    SetGeneratorGlobals(generator_input_info)
+    # A generator can have other lists (in addition to sources) be processed
+    # for rules.
+    extra_sources_for_rules = generator_input_info["extra_sources_for_rules"]
+
+    # Load build files.  This loads every target-containing build file into
+    # the |data| dictionary such that the keys to |data| are build file names,
+    # and the values are the entire build file contents after "early" or "pre"
+    # processing has been done and includes have been resolved.
+    # NOTE: data contains both "target" files (.gyp) and "includes" (.gypi), as
+    # well as meta-data (e.g. 'included_files' key). 'target_build_files' keeps
+    # track of the keys corresponding to "target" files.
+    data = {"target_build_files": set()}
+    # Normalize paths everywhere.  This is important because paths will be
+    # used as keys to the data dict and for references between input files.
+    build_files = set(map(os.path.normpath, build_files))
+    if parallel:
+        LoadTargetBuildFilesParallel(
+            build_files, data, variables, includes, depth, check, generator_input_info
+        )
+    else:
+        aux_data = {}
+        for build_file in build_files:
+            try:
+                LoadTargetBuildFile(
+                    build_file, data, aux_data, variables, includes, depth, check, True
+                )
+            except Exception as e:
+                gyp.common.ExceptionAppend(e, "while trying to load %s" % build_file)
+                raise
+
+    # Build a dict to access each target's subdict by qualified name.
+    targets = BuildTargetsDict(data)
+
+    # Fully qualify all dependency links.
+    QualifyDependencies(targets)
+
+    # Remove self-dependencies from targets that have 'prune_self_dependencies'
+    # set to 1.
+    RemoveSelfDependencies(targets)
+
+    # Expand dependencies specified as build_file:*.
+    ExpandWildcardDependencies(targets, data)
+
+    # Remove all dependencies marked as 'link_dependency' from the targets of
+    # type 'none'.
+    RemoveLinkDependenciesFromNoneTargets(targets)
+
+    # Apply exclude (!) and regex (/) list filters only for dependency_sections.
+    for target_name, target_dict in targets.items():
+        tmp_dict = {}
+        for key_base in dependency_sections:
+            for op in ("", "!", "/"):
+                key = key_base + op
+                if key in target_dict:
+                    tmp_dict[key] = target_dict[key]
+                    del target_dict[key]
+        ProcessListFiltersInDict(target_name, tmp_dict)
+        # Write the results back to |target_dict|.
+        for key in tmp_dict:
+            target_dict[key] = tmp_dict[key]
+
+    # Make sure every dependency appears at most once.
+    RemoveDuplicateDependencies(targets)
+
+    if circular_check:
+        # Make sure that any targets in a.gyp don't contain dependencies in other
+        # .gyp files that further depend on a.gyp.
+        VerifyNoGYPFileCircularDependencies(targets)
+
+    [dependency_nodes, flat_list] = BuildDependencyList(targets)
+
+    if root_targets:
+        # Remove, from |targets| and |flat_list|, the targets that are not deep
+        # dependencies of the targets specified in |root_targets|.
+        targets, flat_list = PruneUnwantedTargets(
+            targets, flat_list, dependency_nodes, root_targets, data
+        )
+
+    # Check that no two targets in the same directory have the same name.
+    VerifyNoCollidingTargets(flat_list)
+
+    # Handle dependent settings of various types.
+    for settings_type in [
+        "all_dependent_settings",
+        "direct_dependent_settings",
+        "link_settings",
+    ]:
+        DoDependentSettings(settings_type, flat_list, targets, dependency_nodes)
+
+        # Take out the dependent settings now that they've been published to all
+        # of the targets that require them.
+        for target in flat_list:
+            if settings_type in targets[target]:
+                del targets[target][settings_type]
+
+    # Make sure static libraries don't declare dependencies on other static
+    # libraries, but that linkables depend on all unlinked static libraries
+    # that they need so that their link steps will be correct.
+    gii = generator_input_info
+    if gii["generator_wants_static_library_dependencies_adjusted"]:
+        AdjustStaticLibraryDependencies(
+            flat_list,
+            targets,
+            dependency_nodes,
+            gii["generator_wants_sorted_dependencies"],
+        )
+
+    # Apply "post"/"late"/"target" variable expansions and condition evaluations.
+    for target in flat_list:
+        target_dict = targets[target]
+        build_file = gyp.common.BuildFile(target)
+        ProcessVariablesAndConditionsInDict(
+            target_dict, PHASE_LATE, variables, build_file
+        )
+
+    # Move everything that can go into a "configurations" section into one.
+    for target in flat_list:
+        target_dict = targets[target]
+        SetUpConfigurations(target, target_dict)
+
+    # Apply exclude (!) and regex (/) list filters.
+    for target in flat_list:
+        target_dict = targets[target]
+        ProcessListFiltersInDict(target, target_dict)
+
+    # Apply "latelate" variable expansions and condition evaluations.
+    for target in flat_list:
+        target_dict = targets[target]
+        build_file = gyp.common.BuildFile(target)
+        ProcessVariablesAndConditionsInDict(
+            target_dict, PHASE_LATELATE, variables, build_file
+        )
+
+    # Make sure that the rules make sense, and build up rule_sources lists as
+    # needed.  Not all generators will need to use the rule_sources lists, but
+    # some may, and it seems best to build the list in a common spot.
+    # Also validate actions and run_as elements in targets.
+    for target in flat_list:
+        target_dict = targets[target]
+        build_file = gyp.common.BuildFile(target)
+        ValidateTargetType(target, target_dict)
+        ValidateRulesInTarget(target, target_dict, extra_sources_for_rules)
+        ValidateRunAsInTarget(target, target_dict, build_file)
+        ValidateActionsInTarget(target, target_dict, build_file)
+
+    # Generators might not expect ints.  Turn them into strs.
+    TurnIntIntoStrInDict(data)
+
+    # TODO(mark): Return |data| for now because the generator needs a list of
+    # build files that came in.  In the future, maybe it should just accept
+    # a list, and not the whole data dict.
+    return [flat_list, targets, data]
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/input_test.py b/node_modules/node-gyp/gyp/pylib/gyp/input_test.py
new file mode 100644
index 0000000..a18f72e
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/input_test.py
@@ -0,0 +1,98 @@
+#!/usr/bin/env python3
+
+# Copyright 2013 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Unit tests for the input.py file."""
+
+import gyp.input
+import unittest
+
+
+class TestFindCycles(unittest.TestCase):
+    def setUp(self):
+        self.nodes = {}
+        for x in ("a", "b", "c", "d", "e"):
+            self.nodes[x] = gyp.input.DependencyGraphNode(x)
+
+    def _create_dependency(self, dependent, dependency):
+        dependent.dependencies.append(dependency)
+        dependency.dependents.append(dependent)
+
+    def test_no_cycle_empty_graph(self):
+        for label, node in self.nodes.items():
+            self.assertEqual([], node.FindCycles())
+
+    def test_no_cycle_line(self):
+        self._create_dependency(self.nodes["a"], self.nodes["b"])
+        self._create_dependency(self.nodes["b"], self.nodes["c"])
+        self._create_dependency(self.nodes["c"], self.nodes["d"])
+
+        for label, node in self.nodes.items():
+            self.assertEqual([], node.FindCycles())
+
+    def test_no_cycle_dag(self):
+        self._create_dependency(self.nodes["a"], self.nodes["b"])
+        self._create_dependency(self.nodes["a"], self.nodes["c"])
+        self._create_dependency(self.nodes["b"], self.nodes["c"])
+
+        for label, node in self.nodes.items():
+            self.assertEqual([], node.FindCycles())
+
+    def test_cycle_self_reference(self):
+        self._create_dependency(self.nodes["a"], self.nodes["a"])
+
+        self.assertEqual(
+            [[self.nodes["a"], self.nodes["a"]]], self.nodes["a"].FindCycles()
+        )
+
+    def test_cycle_two_nodes(self):
+        self._create_dependency(self.nodes["a"], self.nodes["b"])
+        self._create_dependency(self.nodes["b"], self.nodes["a"])
+
+        self.assertEqual(
+            [[self.nodes["a"], self.nodes["b"], self.nodes["a"]]],
+            self.nodes["a"].FindCycles(),
+        )
+        self.assertEqual(
+            [[self.nodes["b"], self.nodes["a"], self.nodes["b"]]],
+            self.nodes["b"].FindCycles(),
+        )
+
+    def test_two_cycles(self):
+        self._create_dependency(self.nodes["a"], self.nodes["b"])
+        self._create_dependency(self.nodes["b"], self.nodes["a"])
+
+        self._create_dependency(self.nodes["b"], self.nodes["c"])
+        self._create_dependency(self.nodes["c"], self.nodes["b"])
+
+        cycles = self.nodes["a"].FindCycles()
+        self.assertTrue([self.nodes["a"], self.nodes["b"], self.nodes["a"]] in cycles)
+        self.assertTrue([self.nodes["b"], self.nodes["c"], self.nodes["b"]] in cycles)
+        self.assertEqual(2, len(cycles))
+
+    def test_big_cycle(self):
+        self._create_dependency(self.nodes["a"], self.nodes["b"])
+        self._create_dependency(self.nodes["b"], self.nodes["c"])
+        self._create_dependency(self.nodes["c"], self.nodes["d"])
+        self._create_dependency(self.nodes["d"], self.nodes["e"])
+        self._create_dependency(self.nodes["e"], self.nodes["a"])
+
+        self.assertEqual(
+            [
+                [
+                    self.nodes["a"],
+                    self.nodes["b"],
+                    self.nodes["c"],
+                    self.nodes["d"],
+                    self.nodes["e"],
+                    self.nodes["a"],
+                ]
+            ],
+            self.nodes["a"].FindCycles(),
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/mac_tool.py b/node_modules/node-gyp/gyp/pylib/gyp/mac_tool.py
new file mode 100644
index 0000000..59647c9
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/mac_tool.py
@@ -0,0 +1,771 @@
+#!/usr/bin/env python3
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Utility functions to perform Xcode-style build steps.
+
+These functions are executed via gyp-mac-tool when using the Makefile generator.
+"""
+
+
+import fcntl
+import fnmatch
+import glob
+import json
+import os
+import plistlib
+import re
+import shutil
+import struct
+import subprocess
+import sys
+import tempfile
+
+
+def main(args):
+    executor = MacTool()
+    exit_code = executor.Dispatch(args)
+    if exit_code is not None:
+        sys.exit(exit_code)
+
+
+class MacTool:
+    """This class performs all the Mac tooling steps. The methods can either be
+  executed directly, or dispatched from an argument list."""
+
+    def Dispatch(self, args):
+        """Dispatches a string command to a method."""
+        if len(args) < 1:
+            raise Exception("Not enough arguments")
+
+        method = "Exec%s" % self._CommandifyName(args[0])
+        return getattr(self, method)(*args[1:])
+
+    def _CommandifyName(self, name_string):
+        """Transforms a tool name like copy-info-plist to CopyInfoPlist"""
+        return name_string.title().replace("-", "")
+
+    def ExecCopyBundleResource(self, source, dest, convert_to_binary):
+        """Copies a resource file to the bundle/Resources directory, performing any
+    necessary compilation on each resource."""
+        convert_to_binary = convert_to_binary == "True"
+        extension = os.path.splitext(source)[1].lower()
+        if os.path.isdir(source):
+            # Copy tree.
+            # TODO(thakis): This copies file attributes like mtime, while the
+            # single-file branch below doesn't. This should probably be changed to
+            # be consistent with the single-file branch.
+            if os.path.exists(dest):
+                shutil.rmtree(dest)
+            shutil.copytree(source, dest)
+        elif extension == ".xib":
+            return self._CopyXIBFile(source, dest)
+        elif extension == ".storyboard":
+            return self._CopyXIBFile(source, dest)
+        elif extension == ".strings" and not convert_to_binary:
+            self._CopyStringsFile(source, dest)
+        else:
+            if os.path.exists(dest):
+                os.unlink(dest)
+            shutil.copy(source, dest)
+
+        if convert_to_binary and extension in (".plist", ".strings"):
+            self._ConvertToBinary(dest)
+
+    def _CopyXIBFile(self, source, dest):
+        """Compiles a XIB file with ibtool into a binary plist in the bundle."""
+
+        # ibtool sometimes crashes with relative paths. See crbug.com/314728.
+        base = os.path.dirname(os.path.realpath(__file__))
+        if os.path.relpath(source):
+            source = os.path.join(base, source)
+        if os.path.relpath(dest):
+            dest = os.path.join(base, dest)
+
+        args = ["xcrun", "ibtool", "--errors", "--warnings", "--notices"]
+
+        if os.environ["XCODE_VERSION_ACTUAL"] > "0700":
+            args.extend(["--auto-activate-custom-fonts"])
+            if "IPHONEOS_DEPLOYMENT_TARGET" in os.environ:
+                args.extend(
+                    [
+                        "--target-device",
+                        "iphone",
+                        "--target-device",
+                        "ipad",
+                        "--minimum-deployment-target",
+                        os.environ["IPHONEOS_DEPLOYMENT_TARGET"],
+                    ]
+                )
+            else:
+                args.extend(
+                    [
+                        "--target-device",
+                        "mac",
+                        "--minimum-deployment-target",
+                        os.environ["MACOSX_DEPLOYMENT_TARGET"],
+                    ]
+                )
+
+        args.extend(
+            ["--output-format", "human-readable-text", "--compile", dest, source]
+        )
+
+        ibtool_section_re = re.compile(r"/\*.*\*/")
+        ibtool_re = re.compile(r".*note:.*is clipping its content")
+        try:
+            stdout = subprocess.check_output(args)
+        except subprocess.CalledProcessError as e:
+            print(e.output)
+            raise
+        current_section_header = None
+        for line in stdout.splitlines():
+            if ibtool_section_re.match(line):
+                current_section_header = line
+            elif not ibtool_re.match(line):
+                if current_section_header:
+                    print(current_section_header)
+                    current_section_header = None
+                print(line)
+        return 0
+
+    def _ConvertToBinary(self, dest):
+        subprocess.check_call(
+            ["xcrun", "plutil", "-convert", "binary1", "-o", dest, dest]
+        )
+
+    def _CopyStringsFile(self, source, dest):
+        """Copies a .strings file using iconv to reconvert the input into UTF-16."""
+        input_code = self._DetectInputEncoding(source) or "UTF-8"
+
+        # Xcode's CpyCopyStringsFile / builtin-copyStrings seems to call
+        # CFPropertyListCreateFromXMLData() behind the scenes; at least it prints
+        #     CFPropertyListCreateFromXMLData(): Old-style plist parser: missing
+        #     semicolon in dictionary.
+        # on invalid files. Do the same kind of validation.
+        import CoreFoundation
+
+        with open(source, "rb") as in_file:
+            s = in_file.read()
+        d = CoreFoundation.CFDataCreate(None, s, len(s))
+        _, error = CoreFoundation.CFPropertyListCreateFromXMLData(None, d, 0, None)
+        if error:
+            return
+
+        with open(dest, "wb") as fp:
+            fp.write(s.decode(input_code).encode("UTF-16"))
+
+    def _DetectInputEncoding(self, file_name):
+        """Reads the first few bytes from file_name and tries to guess the text
+    encoding. Returns None as a guess if it can't detect it."""
+        with open(file_name, "rb") as fp:
+            try:
+                header = fp.read(3)
+            except Exception:
+                return None
+        if header.startswith(b"\xFE\xFF"):
+            return "UTF-16"
+        elif header.startswith(b"\xFF\xFE"):
+            return "UTF-16"
+        elif header.startswith(b"\xEF\xBB\xBF"):
+            return "UTF-8"
+        else:
+            return None
+
+    def ExecCopyInfoPlist(self, source, dest, convert_to_binary, *keys):
+        """Copies the |source| Info.plist to the destination directory |dest|."""
+        # Read the source Info.plist into memory.
+        with open(source) as fd:
+            lines = fd.read()
+
+        # Insert synthesized key/value pairs (e.g. BuildMachineOSBuild).
+        plist = plistlib.readPlistFromString(lines)
+        if keys:
+            plist.update(json.loads(keys[0]))
+        lines = plistlib.writePlistToString(plist)
+
+        # Go through all the environment variables and replace them as variables in
+        # the file.
+        IDENT_RE = re.compile(r"[_/\s]")
+        for key in os.environ:
+            if key.startswith("_"):
+                continue
+            evar = "${%s}" % key
+            evalue = os.environ[key]
+            lines = lines.replace(lines, evar, evalue)
+
+            # Xcode supports various suffices on environment variables, which are
+            # all undocumented. :rfc1034identifier is used in the standard project
+            # template these days, and :identifier was used earlier. They are used to
+            # convert non-url characters into things that look like valid urls --
+            # except that the replacement character for :identifier, '_' isn't valid
+            # in a URL either -- oops, hence :rfc1034identifier was born.
+            evar = "${%s:identifier}" % key
+            evalue = IDENT_RE.sub("_", os.environ[key])
+            lines = lines.replace(lines, evar, evalue)
+
+            evar = "${%s:rfc1034identifier}" % key
+            evalue = IDENT_RE.sub("-", os.environ[key])
+            lines = lines.replace(lines, evar, evalue)
+
+        # Remove any keys with values that haven't been replaced.
+        lines = lines.splitlines()
+        for i in range(len(lines)):
+            if lines[i].strip().startswith("<string>${"):
+                lines[i] = None
+                lines[i - 1] = None
+        lines = "\n".join(line for line in lines if line is not None)
+
+        # Write out the file with variables replaced.
+        with open(dest, "w") as fd:
+            fd.write(lines)
+
+        # Now write out PkgInfo file now that the Info.plist file has been
+        # "compiled".
+        self._WritePkgInfo(dest)
+
+        if convert_to_binary == "True":
+            self._ConvertToBinary(dest)
+
+    def _WritePkgInfo(self, info_plist):
+        """This writes the PkgInfo file from the data stored in Info.plist."""
+        plist = plistlib.readPlist(info_plist)
+        if not plist:
+            return
+
+        # Only create PkgInfo for executable types.
+        package_type = plist["CFBundlePackageType"]
+        if package_type != "APPL":
+            return
+
+        # The format of PkgInfo is eight characters, representing the bundle type
+        # and bundle signature, each four characters. If that is missing, four
+        # '?' characters are used instead.
+        signature_code = plist.get("CFBundleSignature", "????")
+        if len(signature_code) != 4:  # Wrong length resets everything, too.
+            signature_code = "?" * 4
+
+        dest = os.path.join(os.path.dirname(info_plist), "PkgInfo")
+        with open(dest, "w") as fp:
+            fp.write(f"{package_type}{signature_code}")
+
+    def ExecFlock(self, lockfile, *cmd_list):
+        """Emulates the most basic behavior of Linux's flock(1)."""
+        # Rely on exception handling to report errors.
+        fd = os.open(lockfile, os.O_RDONLY | os.O_NOCTTY | os.O_CREAT, 0o666)
+        fcntl.flock(fd, fcntl.LOCK_EX)
+        return subprocess.call(cmd_list)
+
+    def ExecFilterLibtool(self, *cmd_list):
+        """Calls libtool and filters out '/path/to/libtool: file: foo.o has no
+    symbols'."""
+        libtool_re = re.compile(
+            r"^.*libtool: (?:for architecture: \S* )?" r"file: .* has no symbols$"
+        )
+        libtool_re5 = re.compile(
+            r"^.*libtool: warning for library: "
+            + r".* the table of contents is empty "
+            + r"\(no object file members in the library define global symbols\)$"
+        )
+        env = os.environ.copy()
+        # Ref:
+        # http://www.opensource.apple.com/source/cctools/cctools-809/misc/libtool.c
+        # The problem with this flag is that it resets the file mtime on the file to
+        # epoch=0, e.g. 1970-1-1 or 1969-12-31 depending on timezone.
+        env["ZERO_AR_DATE"] = "1"
+        libtoolout = subprocess.Popen(cmd_list, stderr=subprocess.PIPE, env=env)
+        err = libtoolout.communicate()[1].decode("utf-8")
+        for line in err.splitlines():
+            if not libtool_re.match(line) and not libtool_re5.match(line):
+                print(line, file=sys.stderr)
+        # Unconditionally touch the output .a file on the command line if present
+        # and the command succeeded. A bit hacky.
+        if not libtoolout.returncode:
+            for i in range(len(cmd_list) - 1):
+                if cmd_list[i] == "-o" and cmd_list[i + 1].endswith(".a"):
+                    os.utime(cmd_list[i + 1], None)
+                    break
+        return libtoolout.returncode
+
+    def ExecPackageIosFramework(self, framework):
+        # Find the name of the binary based on the part before the ".framework".
+        binary = os.path.basename(framework).split(".")[0]
+        module_path = os.path.join(framework, "Modules")
+        if not os.path.exists(module_path):
+            os.mkdir(module_path)
+        module_template = (
+            "framework module %s {\n"
+            '  umbrella header "%s.h"\n'
+            "\n"
+            "  export *\n"
+            "  module * { export * }\n"
+            "}\n" % (binary, binary)
+        )
+
+        with open(os.path.join(module_path, "module.modulemap"), "w") as module_file:
+            module_file.write(module_template)
+
+    def ExecPackageFramework(self, framework, version):
+        """Takes a path to Something.framework and the Current version of that and
+    sets up all the symlinks."""
+        # Find the name of the binary based on the part before the ".framework".
+        binary = os.path.basename(framework).split(".")[0]
+
+        CURRENT = "Current"
+        RESOURCES = "Resources"
+        VERSIONS = "Versions"
+
+        if not os.path.exists(os.path.join(framework, VERSIONS, version, binary)):
+            # Binary-less frameworks don't seem to contain symlinks (see e.g.
+            # chromium's out/Debug/org.chromium.Chromium.manifest/ bundle).
+            return
+
+        # Move into the framework directory to set the symlinks correctly.
+        pwd = os.getcwd()
+        os.chdir(framework)
+
+        # Set up the Current version.
+        self._Relink(version, os.path.join(VERSIONS, CURRENT))
+
+        # Set up the root symlinks.
+        self._Relink(os.path.join(VERSIONS, CURRENT, binary), binary)
+        self._Relink(os.path.join(VERSIONS, CURRENT, RESOURCES), RESOURCES)
+
+        # Back to where we were before!
+        os.chdir(pwd)
+
+    def _Relink(self, dest, link):
+        """Creates a symlink to |dest| named |link|. If |link| already exists,
+    it is overwritten."""
+        if os.path.lexists(link):
+            os.remove(link)
+        os.symlink(dest, link)
+
+    def ExecCompileIosFrameworkHeaderMap(self, out, framework, *all_headers):
+        framework_name = os.path.basename(framework).split(".")[0]
+        all_headers = [os.path.abspath(header) for header in all_headers]
+        filelist = {}
+        for header in all_headers:
+            filename = os.path.basename(header)
+            filelist[filename] = header
+            filelist[os.path.join(framework_name, filename)] = header
+        WriteHmap(out, filelist)
+
+    def ExecCopyIosFrameworkHeaders(self, framework, *copy_headers):
+        header_path = os.path.join(framework, "Headers")
+        if not os.path.exists(header_path):
+            os.makedirs(header_path)
+        for header in copy_headers:
+            shutil.copy(header, os.path.join(header_path, os.path.basename(header)))
+
+    def ExecCompileXcassets(self, keys, *inputs):
+        """Compiles multiple .xcassets files into a single .car file.
+
+    This invokes 'actool' to compile all the inputs .xcassets files. The
+    |keys| arguments is a json-encoded dictionary of extra arguments to
+    pass to 'actool' when the asset catalogs contains an application icon
+    or a launch image.
+
+    Note that 'actool' does not create the Assets.car file if the asset
+    catalogs does not contains imageset.
+    """
+        command_line = [
+            "xcrun",
+            "actool",
+            "--output-format",
+            "human-readable-text",
+            "--compress-pngs",
+            "--notices",
+            "--warnings",
+            "--errors",
+        ]
+        is_iphone_target = "IPHONEOS_DEPLOYMENT_TARGET" in os.environ
+        if is_iphone_target:
+            platform = os.environ["CONFIGURATION"].split("-")[-1]
+            if platform not in ("iphoneos", "iphonesimulator"):
+                platform = "iphonesimulator"
+            command_line.extend(
+                [
+                    "--platform",
+                    platform,
+                    "--target-device",
+                    "iphone",
+                    "--target-device",
+                    "ipad",
+                    "--minimum-deployment-target",
+                    os.environ["IPHONEOS_DEPLOYMENT_TARGET"],
+                    "--compile",
+                    os.path.abspath(os.environ["CONTENTS_FOLDER_PATH"]),
+                ]
+            )
+        else:
+            command_line.extend(
+                [
+                    "--platform",
+                    "macosx",
+                    "--target-device",
+                    "mac",
+                    "--minimum-deployment-target",
+                    os.environ["MACOSX_DEPLOYMENT_TARGET"],
+                    "--compile",
+                    os.path.abspath(os.environ["UNLOCALIZED_RESOURCES_FOLDER_PATH"]),
+                ]
+            )
+        if keys:
+            keys = json.loads(keys)
+            for key, value in keys.items():
+                arg_name = "--" + key
+                if isinstance(value, bool):
+                    if value:
+                        command_line.append(arg_name)
+                elif isinstance(value, list):
+                    for v in value:
+                        command_line.append(arg_name)
+                        command_line.append(str(v))
+                else:
+                    command_line.append(arg_name)
+                    command_line.append(str(value))
+        # Note: actool crashes if inputs path are relative, so use os.path.abspath
+        # to get absolute path name for inputs.
+        command_line.extend(map(os.path.abspath, inputs))
+        subprocess.check_call(command_line)
+
+    def ExecMergeInfoPlist(self, output, *inputs):
+        """Merge multiple .plist files into a single .plist file."""
+        merged_plist = {}
+        for path in inputs:
+            plist = self._LoadPlistMaybeBinary(path)
+            self._MergePlist(merged_plist, plist)
+        plistlib.writePlist(merged_plist, output)
+
+    def ExecCodeSignBundle(self, key, entitlements, provisioning, path, preserve):
+        """Code sign a bundle.
+
+    This function tries to code sign an iOS bundle, following the same
+    algorithm as Xcode:
+      1. pick the provisioning profile that best match the bundle identifier,
+         and copy it into the bundle as embedded.mobileprovision,
+      2. copy Entitlements.plist from user or SDK next to the bundle,
+      3. code sign the bundle.
+    """
+        substitutions, overrides = self._InstallProvisioningProfile(
+            provisioning, self._GetCFBundleIdentifier()
+        )
+        entitlements_path = self._InstallEntitlements(
+            entitlements, substitutions, overrides
+        )
+
+        args = ["codesign", "--force", "--sign", key]
+        if preserve == "True":
+            args.extend(["--deep", "--preserve-metadata=identifier,entitlements"])
+        else:
+            args.extend(["--entitlements", entitlements_path])
+        args.extend(["--timestamp=none", path])
+        subprocess.check_call(args)
+
+    def _InstallProvisioningProfile(self, profile, bundle_identifier):
+        """Installs embedded.mobileprovision into the bundle.
+
+    Args:
+      profile: string, optional, short name of the .mobileprovision file
+        to use, if empty or the file is missing, the best file installed
+        will be used
+      bundle_identifier: string, value of CFBundleIdentifier from Info.plist
+
+    Returns:
+      A tuple containing two dictionary: variables substitutions and values
+      to overrides when generating the entitlements file.
+    """
+        source_path, provisioning_data, team_id = self._FindProvisioningProfile(
+            profile, bundle_identifier
+        )
+        target_path = os.path.join(
+            os.environ["BUILT_PRODUCTS_DIR"],
+            os.environ["CONTENTS_FOLDER_PATH"],
+            "embedded.mobileprovision",
+        )
+        shutil.copy2(source_path, target_path)
+        substitutions = self._GetSubstitutions(bundle_identifier, team_id + ".")
+        return substitutions, provisioning_data["Entitlements"]
+
+    def _FindProvisioningProfile(self, profile, bundle_identifier):
+        """Finds the .mobileprovision file to use for signing the bundle.
+
+    Checks all the installed provisioning profiles (or if the user specified
+    the PROVISIONING_PROFILE variable, only consult it) and select the most
+    specific that correspond to the bundle identifier.
+
+    Args:
+      profile: string, optional, short name of the .mobileprovision file
+        to use, if empty or the file is missing, the best file installed
+        will be used
+      bundle_identifier: string, value of CFBundleIdentifier from Info.plist
+
+    Returns:
+      A tuple of the path to the selected provisioning profile, the data of
+      the embedded plist in the provisioning profile and the team identifier
+      to use for code signing.
+
+    Raises:
+      SystemExit: if no .mobileprovision can be used to sign the bundle.
+    """
+        profiles_dir = os.path.join(
+            os.environ["HOME"], "Library", "MobileDevice", "Provisioning Profiles"
+        )
+        if not os.path.isdir(profiles_dir):
+            print(
+                "cannot find mobile provisioning for %s" % (bundle_identifier),
+                file=sys.stderr,
+            )
+            sys.exit(1)
+        provisioning_profiles = None
+        if profile:
+            profile_path = os.path.join(profiles_dir, profile + ".mobileprovision")
+            if os.path.exists(profile_path):
+                provisioning_profiles = [profile_path]
+        if not provisioning_profiles:
+            provisioning_profiles = glob.glob(
+                os.path.join(profiles_dir, "*.mobileprovision")
+            )
+        valid_provisioning_profiles = {}
+        for profile_path in provisioning_profiles:
+            profile_data = self._LoadProvisioningProfile(profile_path)
+            app_id_pattern = profile_data.get("Entitlements", {}).get(
+                "application-identifier", ""
+            )
+            for team_identifier in profile_data.get("TeamIdentifier", []):
+                app_id = f"{team_identifier}.{bundle_identifier}"
+                if fnmatch.fnmatch(app_id, app_id_pattern):
+                    valid_provisioning_profiles[app_id_pattern] = (
+                        profile_path,
+                        profile_data,
+                        team_identifier,
+                    )
+        if not valid_provisioning_profiles:
+            print(
+                "cannot find mobile provisioning for %s" % (bundle_identifier),
+                file=sys.stderr,
+            )
+            sys.exit(1)
+        # If the user has multiple provisioning profiles installed that can be
+        # used for ${bundle_identifier}, pick the most specific one (ie. the
+        # provisioning profile whose pattern is the longest).
+        selected_key = max(valid_provisioning_profiles, key=lambda v: len(v))
+        return valid_provisioning_profiles[selected_key]
+
+    def _LoadProvisioningProfile(self, profile_path):
+        """Extracts the plist embedded in a provisioning profile.
+
+    Args:
+      profile_path: string, path to the .mobileprovision file
+
+    Returns:
+      Content of the plist embedded in the provisioning profile as a dictionary.
+    """
+        with tempfile.NamedTemporaryFile() as temp:
+            subprocess.check_call(
+                ["security", "cms", "-D", "-i", profile_path, "-o", temp.name]
+            )
+            return self._LoadPlistMaybeBinary(temp.name)
+
+    def _MergePlist(self, merged_plist, plist):
+        """Merge |plist| into |merged_plist|."""
+        for key, value in plist.items():
+            if isinstance(value, dict):
+                merged_value = merged_plist.get(key, {})
+                if isinstance(merged_value, dict):
+                    self._MergePlist(merged_value, value)
+                    merged_plist[key] = merged_value
+                else:
+                    merged_plist[key] = value
+            else:
+                merged_plist[key] = value
+
+    def _LoadPlistMaybeBinary(self, plist_path):
+        """Loads into a memory a plist possibly encoded in binary format.
+
+    This is a wrapper around plistlib.readPlist that tries to convert the
+    plist to the XML format if it can't be parsed (assuming that it is in
+    the binary format).
+
+    Args:
+      plist_path: string, path to a plist file, in XML or binary format
+
+    Returns:
+      Content of the plist as a dictionary.
+    """
+        try:
+            # First, try to read the file using plistlib that only supports XML,
+            # and if an exception is raised, convert a temporary copy to XML and
+            # load that copy.
+            return plistlib.readPlist(plist_path)
+        except Exception:
+            pass
+        with tempfile.NamedTemporaryFile() as temp:
+            shutil.copy2(plist_path, temp.name)
+            subprocess.check_call(["plutil", "-convert", "xml1", temp.name])
+            return plistlib.readPlist(temp.name)
+
+    def _GetSubstitutions(self, bundle_identifier, app_identifier_prefix):
+        """Constructs a dictionary of variable substitutions for Entitlements.plist.
+
+    Args:
+      bundle_identifier: string, value of CFBundleIdentifier from Info.plist
+      app_identifier_prefix: string, value for AppIdentifierPrefix
+
+    Returns:
+      Dictionary of substitutions to apply when generating Entitlements.plist.
+    """
+        return {
+            "CFBundleIdentifier": bundle_identifier,
+            "AppIdentifierPrefix": app_identifier_prefix,
+        }
+
+    def _GetCFBundleIdentifier(self):
+        """Extracts CFBundleIdentifier value from Info.plist in the bundle.
+
+    Returns:
+      Value of CFBundleIdentifier in the Info.plist located in the bundle.
+    """
+        info_plist_path = os.path.join(
+            os.environ["TARGET_BUILD_DIR"], os.environ["INFOPLIST_PATH"]
+        )
+        info_plist_data = self._LoadPlistMaybeBinary(info_plist_path)
+        return info_plist_data["CFBundleIdentifier"]
+
+    def _InstallEntitlements(self, entitlements, substitutions, overrides):
+        """Generates and install the ${BundleName}.xcent entitlements file.
+
+    Expands variables "$(variable)" pattern in the source entitlements file,
+    add extra entitlements defined in the .mobileprovision file and the copy
+    the generated plist to "${BundlePath}.xcent".
+
+    Args:
+      entitlements: string, optional, path to the Entitlements.plist template
+        to use, defaults to "${SDKROOT}/Entitlements.plist"
+      substitutions: dictionary, variable substitutions
+      overrides: dictionary, values to add to the entitlements
+
+    Returns:
+      Path to the generated entitlements file.
+    """
+        source_path = entitlements
+        target_path = os.path.join(
+            os.environ["BUILT_PRODUCTS_DIR"], os.environ["PRODUCT_NAME"] + ".xcent"
+        )
+        if not source_path:
+            source_path = os.path.join(os.environ["SDKROOT"], "Entitlements.plist")
+        shutil.copy2(source_path, target_path)
+        data = self._LoadPlistMaybeBinary(target_path)
+        data = self._ExpandVariables(data, substitutions)
+        if overrides:
+            for key in overrides:
+                if key not in data:
+                    data[key] = overrides[key]
+        plistlib.writePlist(data, target_path)
+        return target_path
+
+    def _ExpandVariables(self, data, substitutions):
+        """Expands variables "$(variable)" in data.
+
+    Args:
+      data: object, can be either string, list or dictionary
+      substitutions: dictionary, variable substitutions to perform
+
+    Returns:
+      Copy of data where each references to "$(variable)" has been replaced
+      by the corresponding value found in substitutions, or left intact if
+      the key was not found.
+    """
+        if isinstance(data, str):
+            for key, value in substitutions.items():
+                data = data.replace("$(%s)" % key, value)
+            return data
+        if isinstance(data, list):
+            return [self._ExpandVariables(v, substitutions) for v in data]
+        if isinstance(data, dict):
+            return {k: self._ExpandVariables(data[k], substitutions) for k in data}
+        return data
+
+
+def NextGreaterPowerOf2(x):
+    return 2 ** (x).bit_length()
+
+
+def WriteHmap(output_name, filelist):
+    """Generates a header map based on |filelist|.
+
+  Per Mark Mentovai:
+    A header map is structured essentially as a hash table, keyed by names used
+    in #includes, and providing pathnames to the actual files.
+
+  The implementation below and the comment above comes from inspecting:
+    http://www.opensource.apple.com/source/distcc/distcc-2503/distcc_dist/include_server/headermap.py?txt
+  while also looking at the implementation in clang in:
+    https://llvm.org/svn/llvm-project/cfe/trunk/lib/Lex/HeaderMap.cpp
+  """
+    magic = 1751998832
+    version = 1
+    _reserved = 0
+    count = len(filelist)
+    capacity = NextGreaterPowerOf2(count)
+    strings_offset = 24 + (12 * capacity)
+    max_value_length = max(len(value) for value in filelist.values())
+
+    out = open(output_name, "wb")
+    out.write(
+        struct.pack(
+            "<LHHLLLL",
+            magic,
+            version,
+            _reserved,
+            strings_offset,
+            count,
+            capacity,
+            max_value_length,
+        )
+    )
+
+    # Create empty hashmap buckets.
+    buckets = [None] * capacity
+    for file, path in filelist.items():
+        key = 0
+        for c in file:
+            key += ord(c.lower()) * 13
+
+        # Fill next empty bucket.
+        while buckets[key & capacity - 1] is not None:
+            key = key + 1
+        buckets[key & capacity - 1] = (file, path)
+
+    next_offset = 1
+    for bucket in buckets:
+        if bucket is None:
+            out.write(struct.pack("<LLL", 0, 0, 0))
+        else:
+            (file, path) = bucket
+            key_offset = next_offset
+            prefix_offset = key_offset + len(file) + 1
+            suffix_offset = prefix_offset + len(os.path.dirname(path) + os.sep) + 1
+            next_offset = suffix_offset + len(os.path.basename(path)) + 1
+            out.write(struct.pack("<LLL", key_offset, prefix_offset, suffix_offset))
+
+    # Pad byte since next offset starts at 1.
+    out.write(struct.pack("<x"))
+
+    for bucket in buckets:
+        if bucket is not None:
+            (file, path) = bucket
+            out.write(struct.pack("<%ds" % len(file), file))
+            out.write(struct.pack("<s", "\0"))
+            base = os.path.dirname(path) + os.sep
+            out.write(struct.pack("<%ds" % len(base), base))
+            out.write(struct.pack("<s", "\0"))
+            path = os.path.basename(path)
+            out.write(struct.pack("<%ds" % len(path), path))
+            out.write(struct.pack("<s", "\0"))
+
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/msvs_emulation.py b/node_modules/node-gyp/gyp/pylib/gyp/msvs_emulation.py
new file mode 100644
index 0000000..5b9c271
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/msvs_emulation.py
@@ -0,0 +1,1271 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""
+This module helps emulate Visual Studio 2008 behavior on top of other
+build systems, primarily ninja.
+"""
+
+import collections
+import os
+import re
+import subprocess
+import sys
+
+from gyp.common import OrderedSet
+import gyp.MSVSUtil
+import gyp.MSVSVersion
+
+windows_quoter_regex = re.compile(r'(\\*)"')
+
+
+def QuoteForRspFile(arg, quote_cmd=True):
+    """Quote a command line argument so that it appears as one argument when
+    processed via cmd.exe and parsed by CommandLineToArgvW (as is typical for
+    Windows programs)."""
+    # See http://goo.gl/cuFbX and http://goo.gl/dhPnp including the comment
+    # threads. This is actually the quoting rules for CommandLineToArgvW, not
+    # for the shell, because the shell doesn't do anything in Windows. This
+    # works more or less because most programs (including the compiler, etc.)
+    # use that function to handle command line arguments.
+
+    # Use a heuristic to try to find args that are paths, and normalize them
+    if arg.find("/") > 0 or arg.count("/") > 1:
+        arg = os.path.normpath(arg)
+
+    # For a literal quote, CommandLineToArgvW requires 2n+1 backslashes
+    # preceding it, and results in n backslashes + the quote. So we substitute
+    # in 2* what we match, +1 more, plus the quote.
+    if quote_cmd:
+        arg = windows_quoter_regex.sub(lambda mo: 2 * mo.group(1) + '\\"', arg)
+
+    # %'s also need to be doubled otherwise they're interpreted as batch
+    # positional arguments. Also make sure to escape the % so that they're
+    # passed literally through escaping so they can be singled to just the
+    # original %. Otherwise, trying to pass the literal representation that
+    # looks like an environment variable to the shell (e.g. %PATH%) would fail.
+    arg = arg.replace("%", "%%")
+
+    # These commands are used in rsp files, so no escaping for the shell (via ^)
+    # is necessary.
+
+    # As a workaround for programs that don't use CommandLineToArgvW, gyp
+    # supports msvs_quote_cmd=0, which simply disables all quoting.
+    if quote_cmd:
+        # Finally, wrap the whole thing in quotes so that the above quote rule
+        # applies and whitespace isn't a word break.
+        return f'"{arg}"'
+
+    return arg
+
+
+def EncodeRspFileList(args, quote_cmd):
+    """Process a list of arguments using QuoteCmdExeArgument."""
+    # Note that the first argument is assumed to be the command. Don't add
+    # quotes around it because then built-ins like 'echo', etc. won't work.
+    # Take care to normpath only the path in the case of 'call ../x.bat' because
+    # otherwise the whole thing is incorrectly interpreted as a path and not
+    # normalized correctly.
+    if not args:
+        return ""
+    if args[0].startswith("call "):
+        call, program = args[0].split(" ", 1)
+        program = call + " " + os.path.normpath(program)
+    else:
+        program = os.path.normpath(args[0])
+    return (program + " "
+            + " ".join(QuoteForRspFile(arg, quote_cmd) for arg in args[1:]))
+
+
+def _GenericRetrieve(root, default, path):
+    """Given a list of dictionary keys |path| and a tree of dicts |root|, find
+    value at path, or return |default| if any of the path doesn't exist."""
+    if not root:
+        return default
+    if not path:
+        return root
+    return _GenericRetrieve(root.get(path[0]), default, path[1:])
+
+
+def _AddPrefix(element, prefix):
+    """Add |prefix| to |element| or each subelement if element is iterable."""
+    if element is None:
+        return element
+    # Note, not Iterable because we don't want to handle strings like that.
+    if isinstance(element, list) or isinstance(element, tuple):
+        return [prefix + e for e in element]
+    else:
+        return prefix + element
+
+
+def _DoRemapping(element, map):
+    """If |element| then remap it through |map|. If |element| is iterable then
+    each item will be remapped. Any elements not found will be removed."""
+    if map is not None and element is not None:
+        if not callable(map):
+            map = map.get  # Assume it's a dict, otherwise a callable to do the remap.
+        if isinstance(element, list) or isinstance(element, tuple):
+            element = filter(None, [map(elem) for elem in element])
+        else:
+            element = map(element)
+    return element
+
+
+def _AppendOrReturn(append, element):
+    """If |append| is None, simply return |element|. If |append| is not None,
+    then add |element| to it, adding each item in |element| if it's a list or
+    tuple."""
+    if append is not None and element is not None:
+        if isinstance(element, list) or isinstance(element, tuple):
+            append.extend(element)
+        else:
+            append.append(element)
+    else:
+        return element
+
+
+def _FindDirectXInstallation():
+    """Try to find an installation location for the DirectX SDK. Check for the
+    standard environment variable, and if that doesn't exist, try to find
+    via the registry. May return None if not found in either location."""
+    # Return previously calculated value, if there is one
+    if hasattr(_FindDirectXInstallation, "dxsdk_dir"):
+        return _FindDirectXInstallation.dxsdk_dir
+
+    dxsdk_dir = os.environ.get("DXSDK_DIR")
+    if not dxsdk_dir:
+        # Setup params to pass to and attempt to launch reg.exe.
+        cmd = ["reg.exe", "query", r"HKLM\Software\Microsoft\DirectX", "/s"]
+        p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        stdout = p.communicate()[0].decode("utf-8")
+        for line in stdout.splitlines():
+            if "InstallPath" in line:
+                dxsdk_dir = line.split("    ")[3] + "\\"
+
+    # Cache return value
+    _FindDirectXInstallation.dxsdk_dir = dxsdk_dir
+    return dxsdk_dir
+
+
+def GetGlobalVSMacroEnv(vs_version):
+    """Get a dict of variables mapping internal VS macro names to their gyp
+    equivalents. Returns all variables that are independent of the target."""
+    env = {}
+    # '$(VSInstallDir)' and '$(VCInstallDir)' are available when and only when
+    # Visual Studio is actually installed.
+    if vs_version.Path():
+        env["$(VSInstallDir)"] = vs_version.Path()
+        env["$(VCInstallDir)"] = os.path.join(vs_version.Path(), "VC") + "\\"
+    # Chromium uses DXSDK_DIR in include/lib paths, but it may or may not be
+    # set. This happens when the SDK is sync'd via src-internal, rather than
+    # by typical end-user installation of the SDK. If it's not set, we don't
+    # want to leave the unexpanded variable in the path, so simply strip it.
+    dxsdk_dir = _FindDirectXInstallation()
+    env["$(DXSDK_DIR)"] = dxsdk_dir if dxsdk_dir else ""
+    # Try to find an installation location for the Windows DDK by checking
+    # the WDK_DIR environment variable, may be None.
+    env["$(WDK_DIR)"] = os.environ.get("WDK_DIR", "")
+    return env
+
+
+def ExtractSharedMSVSSystemIncludes(configs, generator_flags):
+    """Finds msvs_system_include_dirs that are common to all targets, removes
+    them from all targets, and returns an OrderedSet containing them."""
+    all_system_includes = OrderedSet(configs[0].get("msvs_system_include_dirs", []))
+    for config in configs[1:]:
+        system_includes = config.get("msvs_system_include_dirs", [])
+        all_system_includes = all_system_includes & OrderedSet(system_includes)
+    if not all_system_includes:
+        return None
+    # Expand macros in all_system_includes.
+    env = GetGlobalVSMacroEnv(GetVSVersion(generator_flags))
+    expanded_system_includes = OrderedSet(
+        [ExpandMacros(include, env) for include in all_system_includes]
+    )
+    if any(["$" in include for include in expanded_system_includes]):
+        # Some path relies on target-specific variables, bail.
+        return None
+
+    # Remove system includes shared by all targets from the targets.
+    for config in configs:
+        includes = config.get("msvs_system_include_dirs", [])
+        if includes:  # Don't insert a msvs_system_include_dirs key if not needed.
+            # This must check the unexpanded includes list:
+            new_includes = [i for i in includes if i not in all_system_includes]
+            config["msvs_system_include_dirs"] = new_includes
+    return expanded_system_includes
+
+
+class MsvsSettings:
+    """A class that understands the gyp 'msvs_...' values (especially the
+    msvs_settings field). They largely correpond to the VS2008 IDE DOM. This
+    class helps map those settings to command line options."""
+
+    def __init__(self, spec, generator_flags):
+        self.spec = spec
+        self.vs_version = GetVSVersion(generator_flags)
+
+        supported_fields = [
+            ("msvs_configuration_attributes", dict),
+            ("msvs_settings", dict),
+            ("msvs_system_include_dirs", list),
+            ("msvs_disabled_warnings", list),
+            ("msvs_precompiled_header", str),
+            ("msvs_precompiled_source", str),
+            ("msvs_configuration_platform", str),
+            ("msvs_target_platform", str),
+        ]
+        configs = spec["configurations"]
+        for field, default in supported_fields:
+            setattr(self, field, {})
+            for configname, config in configs.items():
+                getattr(self, field)[configname] = config.get(field, default())
+
+        self.msvs_cygwin_dirs = spec.get("msvs_cygwin_dirs", ["."])
+
+        unsupported_fields = [
+            "msvs_prebuild",
+            "msvs_postbuild",
+        ]
+        unsupported = []
+        for field in unsupported_fields:
+            for config in configs.values():
+                if field in config:
+                    unsupported += [
+                        "{} not supported (target {}).".format(
+                            field, spec["target_name"]
+                        )
+                    ]
+        if unsupported:
+            raise Exception("\n".join(unsupported))
+
+    def GetExtension(self):
+        """Returns the extension for the target, with no leading dot.
+
+        Uses 'product_extension' if specified, otherwise uses MSVS defaults based on
+        the target type.
+        """
+        ext = self.spec.get("product_extension", None)
+        if ext:
+            return ext
+        return gyp.MSVSUtil.TARGET_TYPE_EXT.get(self.spec["type"], "")
+
+    def GetVSMacroEnv(self, base_to_build=None, config=None):
+        """Get a dict of variables mapping internal VS macro names to their gyp
+        equivalents."""
+        target_arch = self.GetArch(config)
+        if target_arch == "x86":
+            target_platform = "Win32"
+        else:
+            target_platform = target_arch
+        target_name = self.spec.get("product_prefix", "") + self.spec.get(
+            "product_name", self.spec["target_name"]
+        )
+        target_dir = base_to_build + "\\" if base_to_build else ""
+        target_ext = "." + self.GetExtension()
+        target_file_name = target_name + target_ext
+
+        replacements = {
+            "$(InputName)": "${root}",
+            "$(InputPath)": "${source}",
+            "$(IntDir)": "$!INTERMEDIATE_DIR",
+            "$(OutDir)\\": target_dir,
+            "$(PlatformName)": target_platform,
+            "$(ProjectDir)\\": "",
+            "$(ProjectName)": self.spec["target_name"],
+            "$(TargetDir)\\": target_dir,
+            "$(TargetExt)": target_ext,
+            "$(TargetFileName)": target_file_name,
+            "$(TargetName)": target_name,
+            "$(TargetPath)": os.path.join(target_dir, target_file_name),
+        }
+        replacements.update(GetGlobalVSMacroEnv(self.vs_version))
+        return replacements
+
+    def ConvertVSMacros(self, s, base_to_build=None, config=None):
+        """Convert from VS macro names to something equivalent."""
+        env = self.GetVSMacroEnv(base_to_build, config=config)
+        return ExpandMacros(s, env)
+
+    def AdjustLibraries(self, libraries):
+        """Strip -l from library if it's specified with that."""
+        libs = [lib[2:] if lib.startswith("-l") else lib for lib in libraries]
+        return [
+            lib + ".lib"
+            if not lib.lower().endswith(".lib") and not lib.lower().endswith(".obj")
+            else lib
+            for lib in libs
+        ]
+
+    def _GetAndMunge(self, field, path, default, prefix, append, map):
+        """Retrieve a value from |field| at |path| or return |default|. If
+        |append| is specified, and the item is found, it will be appended to that
+        object instead of returned. If |map| is specified, results will be
+        remapped through |map| before being returned or appended."""
+        result = _GenericRetrieve(field, default, path)
+        result = _DoRemapping(result, map)
+        result = _AddPrefix(result, prefix)
+        return _AppendOrReturn(append, result)
+
+    class _GetWrapper:
+        def __init__(self, parent, field, base_path, append=None):
+            self.parent = parent
+            self.field = field
+            self.base_path = [base_path]
+            self.append = append
+
+        def __call__(self, name, map=None, prefix="", default=None):
+            return self.parent._GetAndMunge(
+                self.field,
+                self.base_path + [name],
+                default=default,
+                prefix=prefix,
+                append=self.append,
+                map=map,
+            )
+
+    def GetArch(self, config):
+        """Get architecture based on msvs_configuration_platform and
+        msvs_target_platform. Returns either 'x86' or 'x64'."""
+        configuration_platform = self.msvs_configuration_platform.get(config, "")
+        platform = self.msvs_target_platform.get(config, "")
+        if not platform:  # If no specific override, use the configuration's.
+            platform = configuration_platform
+        # Map from platform to architecture.
+        return {"Win32": "x86", "x64": "x64", "ARM64": "arm64"}.get(platform, "x86")
+
+    def _TargetConfig(self, config):
+        """Returns the target-specific configuration."""
+        # There's two levels of architecture/platform specification in VS. The
+        # first level is globally for the configuration (this is what we consider
+        # "the" config at the gyp level, which will be something like 'Debug' or
+        # 'Release'), VS2015 and later only use this level
+        if int(self.vs_version.short_name) >= 2015:
+            return config
+        # and a second target-specific configuration, which is an
+        # override for the global one. |config| is remapped here to take into
+        # account the local target-specific overrides to the global configuration.
+        arch = self.GetArch(config)
+        if arch == "x64" and not config.endswith("_x64"):
+            config += "_x64"
+        if arch == "x86" and config.endswith("_x64"):
+            config = config.rsplit("_", 1)[0]
+        return config
+
+    def _Setting(self, path, config, default=None, prefix="", append=None, map=None):
+        """_GetAndMunge for msvs_settings."""
+        return self._GetAndMunge(
+            self.msvs_settings[config], path, default, prefix, append, map
+        )
+
+    def _ConfigAttrib(
+        self, path, config, default=None, prefix="", append=None, map=None
+    ):
+        """_GetAndMunge for msvs_configuration_attributes."""
+        return self._GetAndMunge(
+            self.msvs_configuration_attributes[config],
+            path,
+            default,
+            prefix,
+            append,
+            map,
+        )
+
+    def AdjustIncludeDirs(self, include_dirs, config):
+        """Updates include_dirs to expand VS specific paths, and adds the system
+        include dirs used for platform SDK and similar."""
+        config = self._TargetConfig(config)
+        includes = include_dirs + self.msvs_system_include_dirs[config]
+        includes.extend(
+            self._Setting(
+                ("VCCLCompilerTool", "AdditionalIncludeDirectories"), config, default=[]
+            )
+        )
+        return [self.ConvertVSMacros(p, config=config) for p in includes]
+
+    def AdjustMidlIncludeDirs(self, midl_include_dirs, config):
+        """Updates midl_include_dirs to expand VS specific paths, and adds the
+        system include dirs used for platform SDK and similar."""
+        config = self._TargetConfig(config)
+        includes = midl_include_dirs + self.msvs_system_include_dirs[config]
+        includes.extend(
+            self._Setting(
+                ("VCMIDLTool", "AdditionalIncludeDirectories"), config, default=[]
+            )
+        )
+        return [self.ConvertVSMacros(p, config=config) for p in includes]
+
+    def GetComputedDefines(self, config):
+        """Returns the set of defines that are injected to the defines list based
+        on other VS settings."""
+        config = self._TargetConfig(config)
+        defines = []
+        if self._ConfigAttrib(["CharacterSet"], config) == "1":
+            defines.extend(("_UNICODE", "UNICODE"))
+        if self._ConfigAttrib(["CharacterSet"], config) == "2":
+            defines.append("_MBCS")
+        defines.extend(
+            self._Setting(
+                ("VCCLCompilerTool", "PreprocessorDefinitions"), config, default=[]
+            )
+        )
+        return defines
+
+    def GetCompilerPdbName(self, config, expand_special):
+        """Get the pdb file name that should be used for compiler invocations, or
+        None if there's no explicit name specified."""
+        config = self._TargetConfig(config)
+        pdbname = self._Setting(("VCCLCompilerTool", "ProgramDataBaseFileName"), config)
+        if pdbname:
+            pdbname = expand_special(self.ConvertVSMacros(pdbname))
+        return pdbname
+
+    def GetMapFileName(self, config, expand_special):
+        """Gets the explicitly overridden map file name for a target or returns None
+        if it's not set."""
+        config = self._TargetConfig(config)
+        map_file = self._Setting(("VCLinkerTool", "MapFileName"), config)
+        if map_file:
+            map_file = expand_special(self.ConvertVSMacros(map_file, config=config))
+        return map_file
+
+    def GetOutputName(self, config, expand_special):
+        """Gets the explicitly overridden output name for a target or returns None
+        if it's not overridden."""
+        config = self._TargetConfig(config)
+        type = self.spec["type"]
+        root = "VCLibrarianTool" if type == "static_library" else "VCLinkerTool"
+        # TODO(scottmg): Handle OutputDirectory without OutputFile.
+        output_file = self._Setting((root, "OutputFile"), config)
+        if output_file:
+            output_file = expand_special(
+                self.ConvertVSMacros(output_file, config=config)
+            )
+        return output_file
+
+    def GetPDBName(self, config, expand_special, default):
+        """Gets the explicitly overridden pdb name for a target or returns
+        default if it's not overridden, or if no pdb will be generated."""
+        config = self._TargetConfig(config)
+        output_file = self._Setting(("VCLinkerTool", "ProgramDatabaseFile"), config)
+        generate_debug_info = self._Setting(
+            ("VCLinkerTool", "GenerateDebugInformation"), config
+        )
+        if generate_debug_info == "true":
+            if output_file:
+                return expand_special(self.ConvertVSMacros(output_file, config=config))
+            else:
+                return default
+        else:
+            return None
+
+    def GetNoImportLibrary(self, config):
+        """If NoImportLibrary: true, ninja will not expect the output to include
+        an import library."""
+        config = self._TargetConfig(config)
+        noimplib = self._Setting(("NoImportLibrary",), config)
+        return noimplib == "true"
+
+    def GetAsmflags(self, config):
+        """Returns the flags that need to be added to ml invocations."""
+        config = self._TargetConfig(config)
+        asmflags = []
+        safeseh = self._Setting(("MASM", "UseSafeExceptionHandlers"), config)
+        if safeseh == "true":
+            asmflags.append("/safeseh")
+        return asmflags
+
+    def GetCflags(self, config):
+        """Returns the flags that need to be added to .c and .cc compilations."""
+        config = self._TargetConfig(config)
+        cflags = []
+        cflags.extend(["/wd" + w for w in self.msvs_disabled_warnings[config]])
+        cl = self._GetWrapper(
+            self, self.msvs_settings[config], "VCCLCompilerTool", append=cflags
+        )
+        cl(
+            "Optimization",
+            map={"0": "d", "1": "1", "2": "2", "3": "x"},
+            prefix="/O",
+            default="2",
+        )
+        cl("InlineFunctionExpansion", prefix="/Ob")
+        cl("DisableSpecificWarnings", prefix="/wd")
+        cl("StringPooling", map={"true": "/GF"})
+        cl("EnableFiberSafeOptimizations", map={"true": "/GT"})
+        cl("OmitFramePointers", map={"false": "-", "true": ""}, prefix="/Oy")
+        cl("EnableIntrinsicFunctions", map={"false": "-", "true": ""}, prefix="/Oi")
+        cl("FavorSizeOrSpeed", map={"1": "t", "2": "s"}, prefix="/O")
+        cl(
+            "FloatingPointModel",
+            map={"0": "precise", "1": "strict", "2": "fast"},
+            prefix="/fp:",
+            default="0",
+        )
+        cl("CompileAsManaged", map={"false": "", "true": "/clr"})
+        cl("WholeProgramOptimization", map={"true": "/GL"})
+        cl("WarningLevel", prefix="/W")
+        cl("WarnAsError", map={"true": "/WX"})
+        cl(
+            "CallingConvention",
+            map={"0": "d", "1": "r", "2": "z", "3": "v"},
+            prefix="/G",
+        )
+        cl("DebugInformationFormat", map={"1": "7", "3": "i", "4": "I"}, prefix="/Z")
+        cl("RuntimeTypeInfo", map={"true": "/GR", "false": "/GR-"})
+        cl("EnableFunctionLevelLinking", map={"true": "/Gy", "false": "/Gy-"})
+        cl("MinimalRebuild", map={"true": "/Gm"})
+        cl("BufferSecurityCheck", map={"true": "/GS", "false": "/GS-"})
+        cl("BasicRuntimeChecks", map={"1": "s", "2": "u", "3": "1"}, prefix="/RTC")
+        cl(
+            "RuntimeLibrary",
+            map={"0": "T", "1": "Td", "2": "D", "3": "Dd"},
+            prefix="/M",
+        )
+        cl("ExceptionHandling", map={"1": "sc", "2": "a"}, prefix="/EH")
+        cl("DefaultCharIsUnsigned", map={"true": "/J"})
+        cl(
+            "TreatWChar_tAsBuiltInType",
+            map={"false": "-", "true": ""},
+            prefix="/Zc:wchar_t",
+        )
+        cl("EnablePREfast", map={"true": "/analyze"})
+        cl("AdditionalOptions", prefix="")
+        cl(
+            "EnableEnhancedInstructionSet",
+            map={"1": "SSE", "2": "SSE2", "3": "AVX", "4": "IA32", "5": "AVX2"},
+            prefix="/arch:",
+        )
+        cflags.extend(
+            [
+                "/FI" + f
+                for f in self._Setting(
+                    ("VCCLCompilerTool", "ForcedIncludeFiles"), config, default=[]
+                )
+            ]
+        )
+        if float(self.vs_version.project_version) >= 12.0:
+            # New flag introduced in VS2013 (project version 12.0) Forces writes to
+            # the program database (PDB) to be serialized through MSPDBSRV.EXE.
+            # https://msdn.microsoft.com/en-us/library/dn502518.aspx
+            cflags.append("/FS")
+        # ninja handles parallelism by itself, don't have the compiler do it too.
+        cflags = [x for x in cflags if not x.startswith("/MP")]
+        return cflags
+
+    def _GetPchFlags(self, config, extension):
+        """Get the flags to be added to the cflags for precompiled header support."""
+        config = self._TargetConfig(config)
+        # The PCH is only built once by a particular source file. Usage of PCH must
+        # only be for the same language (i.e. C vs. C++), so only include the pch
+        # flags when the language matches.
+        if self.msvs_precompiled_header[config]:
+            source_ext = os.path.splitext(self.msvs_precompiled_source[config])[1]
+            if _LanguageMatchesForPch(source_ext, extension):
+                pch = self.msvs_precompiled_header[config]
+                pchbase = os.path.split(pch)[1]
+                return ["/Yu" + pch, "/FI" + pch, "/Fp${pchprefix}." + pchbase + ".pch"]
+        return []
+
+    def GetCflagsC(self, config):
+        """Returns the flags that need to be added to .c compilations."""
+        config = self._TargetConfig(config)
+        return self._GetPchFlags(config, ".c")
+
+    def GetCflagsCC(self, config):
+        """Returns the flags that need to be added to .cc compilations."""
+        config = self._TargetConfig(config)
+        return ["/TP"] + self._GetPchFlags(config, ".cc")
+
+    def _GetAdditionalLibraryDirectories(self, root, config, gyp_to_build_path):
+        """Get and normalize the list of paths in AdditionalLibraryDirectories
+        setting."""
+        config = self._TargetConfig(config)
+        libpaths = self._Setting(
+            (root, "AdditionalLibraryDirectories"), config, default=[]
+        )
+        libpaths = [
+            os.path.normpath(gyp_to_build_path(self.ConvertVSMacros(p, config=config)))
+            for p in libpaths
+        ]
+        return ['/LIBPATH:"' + p + '"' for p in libpaths]
+
+    def GetLibFlags(self, config, gyp_to_build_path):
+        """Returns the flags that need to be added to lib commands."""
+        config = self._TargetConfig(config)
+        libflags = []
+        lib = self._GetWrapper(
+            self, self.msvs_settings[config], "VCLibrarianTool", append=libflags
+        )
+        libflags.extend(
+            self._GetAdditionalLibraryDirectories(
+                "VCLibrarianTool", config, gyp_to_build_path
+            )
+        )
+        lib("LinkTimeCodeGeneration", map={"true": "/LTCG"})
+        lib(
+            "TargetMachine",
+            map={"1": "X86", "17": "X64", "3": "ARM"},
+            prefix="/MACHINE:",
+        )
+        lib("AdditionalOptions")
+        return libflags
+
+    def GetDefFile(self, gyp_to_build_path):
+        """Returns the .def file from sources, if any.  Otherwise returns None."""
+        spec = self.spec
+        if spec["type"] in ("shared_library", "loadable_module", "executable"):
+            def_files = [
+                s for s in spec.get("sources", []) if s.lower().endswith(".def")
+            ]
+            if len(def_files) == 1:
+                return gyp_to_build_path(def_files[0])
+            elif len(def_files) > 1:
+                raise Exception("Multiple .def files")
+        return None
+
+    def _GetDefFileAsLdflags(self, ldflags, gyp_to_build_path):
+        """.def files get implicitly converted to a ModuleDefinitionFile for the
+        linker in the VS generator. Emulate that behaviour here."""
+        def_file = self.GetDefFile(gyp_to_build_path)
+        if def_file:
+            ldflags.append('/DEF:"%s"' % def_file)
+
+    def GetPGDName(self, config, expand_special):
+        """Gets the explicitly overridden pgd name for a target or returns None
+        if it's not overridden."""
+        config = self._TargetConfig(config)
+        output_file = self._Setting(("VCLinkerTool", "ProfileGuidedDatabase"), config)
+        if output_file:
+            output_file = expand_special(
+                self.ConvertVSMacros(output_file, config=config)
+            )
+        return output_file
+
+    def GetLdflags(
+        self,
+        config,
+        gyp_to_build_path,
+        expand_special,
+        manifest_base_name,
+        output_name,
+        is_executable,
+        build_dir,
+    ):
+        """Returns the flags that need to be added to link commands, and the
+        manifest files."""
+        config = self._TargetConfig(config)
+        ldflags = []
+        ld = self._GetWrapper(
+            self, self.msvs_settings[config], "VCLinkerTool", append=ldflags
+        )
+        self._GetDefFileAsLdflags(ldflags, gyp_to_build_path)
+        ld("GenerateDebugInformation", map={"true": "/DEBUG"})
+        # TODO: These 'map' values come from machineTypeOption enum,
+        # and does not have an official value for ARM64 in VS2017 (yet).
+        # It needs to verify the ARM64 value when machineTypeOption is updated.
+        ld(
+            "TargetMachine",
+            map={"1": "X86", "17": "X64", "3": "ARM", "18": "ARM64"},
+            prefix="/MACHINE:",
+        )
+        ldflags.extend(
+            self._GetAdditionalLibraryDirectories(
+                "VCLinkerTool", config, gyp_to_build_path
+            )
+        )
+        ld("DelayLoadDLLs", prefix="/DELAYLOAD:")
+        ld("TreatLinkerWarningAsErrors", prefix="/WX", map={"true": "", "false": ":NO"})
+        out = self.GetOutputName(config, expand_special)
+        if out:
+            ldflags.append("/OUT:" + out)
+        pdb = self.GetPDBName(config, expand_special, output_name + ".pdb")
+        if pdb:
+            ldflags.append("/PDB:" + pdb)
+        pgd = self.GetPGDName(config, expand_special)
+        if pgd:
+            ldflags.append("/PGD:" + pgd)
+        map_file = self.GetMapFileName(config, expand_special)
+        ld("GenerateMapFile", map={"true": "/MAP:" + map_file if map_file else "/MAP"})
+        ld("MapExports", map={"true": "/MAPINFO:EXPORTS"})
+        ld("AdditionalOptions", prefix="")
+
+        minimum_required_version = self._Setting(
+            ("VCLinkerTool", "MinimumRequiredVersion"), config, default=""
+        )
+        if minimum_required_version:
+            minimum_required_version = "," + minimum_required_version
+        ld(
+            "SubSystem",
+            map={
+                "1": "CONSOLE%s" % minimum_required_version,
+                "2": "WINDOWS%s" % minimum_required_version,
+            },
+            prefix="/SUBSYSTEM:",
+        )
+
+        stack_reserve_size = self._Setting(
+            ("VCLinkerTool", "StackReserveSize"), config, default=""
+        )
+        if stack_reserve_size:
+            stack_commit_size = self._Setting(
+                ("VCLinkerTool", "StackCommitSize"), config, default=""
+            )
+            if stack_commit_size:
+                stack_commit_size = "," + stack_commit_size
+            ldflags.append(f"/STACK:{stack_reserve_size}{stack_commit_size}")
+
+        ld("TerminalServerAware", map={"1": ":NO", "2": ""}, prefix="/TSAWARE")
+        ld("LinkIncremental", map={"1": ":NO", "2": ""}, prefix="/INCREMENTAL")
+        ld("BaseAddress", prefix="/BASE:")
+        ld("FixedBaseAddress", map={"1": ":NO", "2": ""}, prefix="/FIXED")
+        ld("RandomizedBaseAddress", map={"1": ":NO", "2": ""}, prefix="/DYNAMICBASE")
+        ld("DataExecutionPrevention", map={"1": ":NO", "2": ""}, prefix="/NXCOMPAT")
+        ld("OptimizeReferences", map={"1": "NOREF", "2": "REF"}, prefix="/OPT:")
+        ld("ForceSymbolReferences", prefix="/INCLUDE:")
+        ld("EnableCOMDATFolding", map={"1": "NOICF", "2": "ICF"}, prefix="/OPT:")
+        ld(
+            "LinkTimeCodeGeneration",
+            map={"1": "", "2": ":PGINSTRUMENT", "3": ":PGOPTIMIZE", "4": ":PGUPDATE"},
+            prefix="/LTCG",
+        )
+        ld("IgnoreDefaultLibraryNames", prefix="/NODEFAULTLIB:")
+        ld("ResourceOnlyDLL", map={"true": "/NOENTRY"})
+        ld("EntryPointSymbol", prefix="/ENTRY:")
+        ld("Profile", map={"true": "/PROFILE"})
+        ld("LargeAddressAware", map={"1": ":NO", "2": ""}, prefix="/LARGEADDRESSAWARE")
+        # TODO(scottmg): This should sort of be somewhere else (not really a flag).
+        ld("AdditionalDependencies", prefix="")
+
+        if self.GetArch(config) == "x86":
+            safeseh_default = "true"
+        else:
+            safeseh_default = None
+        ld(
+            "ImageHasSafeExceptionHandlers",
+            map={"false": ":NO", "true": ""},
+            prefix="/SAFESEH",
+            default=safeseh_default,
+        )
+
+        # If the base address is not specifically controlled, DYNAMICBASE should
+        # be on by default.
+        if not any("DYNAMICBASE" in flag or flag == "/FIXED" for flag in ldflags):
+            ldflags.append("/DYNAMICBASE")
+
+        # If the NXCOMPAT flag has not been specified, default to on. Despite the
+        # documentation that says this only defaults to on when the subsystem is
+        # Vista or greater (which applies to the linker), the IDE defaults it on
+        # unless it's explicitly off.
+        if not any("NXCOMPAT" in flag for flag in ldflags):
+            ldflags.append("/NXCOMPAT")
+
+        have_def_file = any(flag.startswith("/DEF:") for flag in ldflags)
+        (
+            manifest_flags,
+            intermediate_manifest,
+            manifest_files,
+        ) = self._GetLdManifestFlags(
+            config,
+            manifest_base_name,
+            gyp_to_build_path,
+            is_executable and not have_def_file,
+            build_dir,
+        )
+        ldflags.extend(manifest_flags)
+        return ldflags, intermediate_manifest, manifest_files
+
+    def _GetLdManifestFlags(
+        self, config, name, gyp_to_build_path, allow_isolation, build_dir
+    ):
+        """Returns a 3-tuple:
+        - the set of flags that need to be added to the link to generate
+          a default manifest
+        - the intermediate manifest that the linker will generate that should be
+          used to assert it doesn't add anything to the merged one.
+        - the list of all the manifest files to be merged by the manifest tool and
+          included into the link."""
+        generate_manifest = self._Setting(
+            ("VCLinkerTool", "GenerateManifest"), config, default="true"
+        )
+        if generate_manifest != "true":
+            # This means not only that the linker should not generate the intermediate
+            # manifest but also that the manifest tool should do nothing even when
+            # additional manifests are specified.
+            return ["/MANIFEST:NO"], [], []
+
+        output_name = name + ".intermediate.manifest"
+        flags = [
+            "/MANIFEST",
+            "/ManifestFile:" + output_name,
+        ]
+
+        # Instead of using the MANIFESTUAC flags, we generate a .manifest to
+        # include into the list of manifests. This allows us to avoid the need to
+        # do two passes during linking. The /MANIFEST flag and /ManifestFile are
+        # still used, and the intermediate manifest is used to assert that the
+        # final manifest we get from merging all the additional manifest files
+        # (plus the one we generate here) isn't modified by merging the
+        # intermediate into it.
+
+        # Always NO, because we generate a manifest file that has what we want.
+        flags.append("/MANIFESTUAC:NO")
+
+        config = self._TargetConfig(config)
+        enable_uac = self._Setting(
+            ("VCLinkerTool", "EnableUAC"), config, default="true"
+        )
+        manifest_files = []
+        generated_manifest_outer = (
+            "<?xml version='1.0' encoding='UTF-8' standalone='yes'?>"
+            "<assembly xmlns='urn:schemas-microsoft-com:asm.v1' manifestVersion='1.0'>"
+            "%s</assembly>"
+        )
+        if enable_uac == "true":
+            execution_level = self._Setting(
+                ("VCLinkerTool", "UACExecutionLevel"), config, default="0"
+            )
+            execution_level_map = {
+                "0": "asInvoker",
+                "1": "highestAvailable",
+                "2": "requireAdministrator",
+            }
+
+            ui_access = self._Setting(
+                ("VCLinkerTool", "UACUIAccess"), config, default="false"
+            )
+
+            inner = """
+<trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+  <security>
+    <requestedPrivileges>
+      <requestedExecutionLevel level='{}' uiAccess='{}' />
+    </requestedPrivileges>
+  </security>
+</trustInfo>""".format(
+                execution_level_map[execution_level],
+                ui_access,
+            )
+        else:
+            inner = ""
+
+        generated_manifest_contents = generated_manifest_outer % inner
+        generated_name = name + ".generated.manifest"
+        # Need to join with the build_dir here as we're writing it during
+        # generation time, but we return the un-joined version because the build
+        # will occur in that directory. We only write the file if the contents
+        # have changed so that simply regenerating the project files doesn't
+        # cause a relink.
+        build_dir_generated_name = os.path.join(build_dir, generated_name)
+        gyp.common.EnsureDirExists(build_dir_generated_name)
+        f = gyp.common.WriteOnDiff(build_dir_generated_name)
+        f.write(generated_manifest_contents)
+        f.close()
+        manifest_files = [generated_name]
+
+        if allow_isolation:
+            flags.append("/ALLOWISOLATION")
+
+        manifest_files += self._GetAdditionalManifestFiles(config, gyp_to_build_path)
+        return flags, output_name, manifest_files
+
+    def _GetAdditionalManifestFiles(self, config, gyp_to_build_path):
+        """Gets additional manifest files that are added to the default one
+        generated by the linker."""
+        files = self._Setting(
+            ("VCManifestTool", "AdditionalManifestFiles"), config, default=[]
+        )
+        if isinstance(files, str):
+            files = files.split(";")
+        return [
+            os.path.normpath(gyp_to_build_path(self.ConvertVSMacros(f, config=config)))
+            for f in files
+        ]
+
+    def IsUseLibraryDependencyInputs(self, config):
+        """Returns whether the target should be linked via Use Library Dependency
+        Inputs (using component .objs of a given .lib)."""
+        config = self._TargetConfig(config)
+        uldi = self._Setting(("VCLinkerTool", "UseLibraryDependencyInputs"), config)
+        return uldi == "true"
+
+    def IsEmbedManifest(self, config):
+        """Returns whether manifest should be linked into binary."""
+        config = self._TargetConfig(config)
+        embed = self._Setting(
+            ("VCManifestTool", "EmbedManifest"), config, default="true"
+        )
+        return embed == "true"
+
+    def IsLinkIncremental(self, config):
+        """Returns whether the target should be linked incrementally."""
+        config = self._TargetConfig(config)
+        link_inc = self._Setting(("VCLinkerTool", "LinkIncremental"), config)
+        return link_inc != "1"
+
+    def GetRcflags(self, config, gyp_to_ninja_path):
+        """Returns the flags that need to be added to invocations of the resource
+        compiler."""
+        config = self._TargetConfig(config)
+        rcflags = []
+        rc = self._GetWrapper(
+            self, self.msvs_settings[config], "VCResourceCompilerTool", append=rcflags
+        )
+        rc("AdditionalIncludeDirectories", map=gyp_to_ninja_path, prefix="/I")
+        rcflags.append("/I" + gyp_to_ninja_path("."))
+        rc("PreprocessorDefinitions", prefix="/d")
+        # /l arg must be in hex without leading '0x'
+        rc("Culture", prefix="/l", map=lambda x: hex(int(x))[2:])
+        return rcflags
+
+    def BuildCygwinBashCommandLine(self, args, path_to_base):
+        """Build a command line that runs args via cygwin bash. We assume that all
+        incoming paths are in Windows normpath'd form, so they need to be
+        converted to posix style for the part of the command line that's passed to
+        bash. We also have to do some Visual Studio macro emulation here because
+        various rules use magic VS names for things. Also note that rules that
+        contain ninja variables cannot be fixed here (for example ${source}), so
+        the outer generator needs to make sure that the paths that are written out
+        are in posix style, if the command line will be used here."""
+        cygwin_dir = os.path.normpath(
+            os.path.join(path_to_base, self.msvs_cygwin_dirs[0])
+        )
+        cd = ("cd %s" % path_to_base).replace("\\", "/")
+        args = [a.replace("\\", "/").replace('"', '\\"') for a in args]
+        args = ["'%s'" % a.replace("'", "'\\''") for a in args]
+        bash_cmd = " ".join(args)
+        cmd = (
+            'call "%s\\setup_env.bat" && set CYGWIN=nontsec && ' % cygwin_dir
+            + f'bash -c "{cd} ; {bash_cmd}"'
+        )
+        return cmd
+
+    RuleShellFlags = collections.namedtuple("RuleShellFlags", ["cygwin", "quote"])
+
+    def GetRuleShellFlags(self, rule):
+        """Return RuleShellFlags about how the given rule should be run. This
+        includes whether it should run under cygwin (msvs_cygwin_shell), and
+        whether the commands should be quoted (msvs_quote_cmd)."""
+        # If the variable is unset, or set to 1 we use cygwin
+        cygwin = int(rule.get("msvs_cygwin_shell",
+                              self.spec.get("msvs_cygwin_shell", 1))) != 0
+        # Default to quoting. There's only a few special instances where the
+        # target command uses non-standard command line parsing and handle quotes
+        # and quote escaping differently.
+        quote_cmd = int(rule.get("msvs_quote_cmd", 1))
+        assert quote_cmd != 0 or cygwin != 1, \
+               "msvs_quote_cmd=0 only applicable for msvs_cygwin_shell=0"
+        return MsvsSettings.RuleShellFlags(cygwin, quote_cmd)
+
+    def _HasExplicitRuleForExtension(self, spec, extension):
+        """Determine if there's an explicit rule for a particular extension."""
+        for rule in spec.get("rules", []):
+            if rule["extension"] == extension:
+                return True
+        return False
+
+    def _HasExplicitIdlActions(self, spec):
+        """Determine if an action should not run midl for .idl files."""
+        return any(
+            [action.get("explicit_idl_action", 0) for action in spec.get("actions", [])]
+        )
+
+    def HasExplicitIdlRulesOrActions(self, spec):
+        """Determine if there's an explicit rule or action for idl files. When
+        there isn't we need to generate implicit rules to build MIDL .idl files."""
+        return self._HasExplicitRuleForExtension(
+            spec, "idl"
+        ) or self._HasExplicitIdlActions(spec)
+
+    def HasExplicitAsmRules(self, spec):
+        """Determine if there's an explicit rule for asm files. When there isn't we
+        need to generate implicit rules to assemble .asm files."""
+        return self._HasExplicitRuleForExtension(spec, "asm")
+
+    def GetIdlBuildData(self, source, config):
+        """Determine the implicit outputs for an idl file. Returns output
+        directory, outputs, and variables and flags that are required."""
+        config = self._TargetConfig(config)
+        midl_get = self._GetWrapper(self, self.msvs_settings[config], "VCMIDLTool")
+
+        def midl(name, default=None):
+            return self.ConvertVSMacros(midl_get(name, default=default), config=config)
+
+        tlb = midl("TypeLibraryName", default="${root}.tlb")
+        header = midl("HeaderFileName", default="${root}.h")
+        dlldata = midl("DLLDataFileName", default="dlldata.c")
+        iid = midl("InterfaceIdentifierFileName", default="${root}_i.c")
+        proxy = midl("ProxyFileName", default="${root}_p.c")
+        # Note that .tlb is not included in the outputs as it is not always
+        # generated depending on the content of the input idl file.
+        outdir = midl("OutputDirectory", default="")
+        output = [header, dlldata, iid, proxy]
+        variables = [
+            ("tlb", tlb),
+            ("h", header),
+            ("dlldata", dlldata),
+            ("iid", iid),
+            ("proxy", proxy),
+        ]
+        # TODO(scottmg): Are there configuration settings to set these flags?
+        target_platform = self.GetArch(config)
+        if target_platform == "x86":
+            target_platform = "win32"
+        flags = ["/char", "signed", "/env", target_platform, "/Oicf"]
+        return outdir, output, variables, flags
+
+
+def _LanguageMatchesForPch(source_ext, pch_source_ext):
+    c_exts = (".c",)
+    cc_exts = (".cc", ".cxx", ".cpp")
+    return (source_ext in c_exts and pch_source_ext in c_exts) or (
+        source_ext in cc_exts and pch_source_ext in cc_exts
+    )
+
+
+class PrecompiledHeader:
+    """Helper to generate dependencies and build rules to handle generation of
+    precompiled headers. Interface matches the GCH handler in xcode_emulation.py.
+    """
+
+    def __init__(
+        self, settings, config, gyp_to_build_path, gyp_to_unique_output, obj_ext
+    ):
+        self.settings = settings
+        self.config = config
+        pch_source = self.settings.msvs_precompiled_source[self.config]
+        self.pch_source = gyp_to_build_path(pch_source)
+        filename, _ = os.path.splitext(pch_source)
+        self.output_obj = gyp_to_unique_output(filename + obj_ext).lower()
+
+    def _PchHeader(self):
+        """Get the header that will appear in an #include line for all source
+        files."""
+        return self.settings.msvs_precompiled_header[self.config]
+
+    def GetObjDependencies(self, sources, objs, arch):
+        """Given a list of sources files and the corresponding object files,
+        returns a list of the pch files that should be depended upon. The
+        additional wrapping in the return value is for interface compatibility
+        with make.py on Mac, and xcode_emulation.py."""
+        assert arch is None
+        if not self._PchHeader():
+            return []
+        pch_ext = os.path.splitext(self.pch_source)[1]
+        for source in sources:
+            if _LanguageMatchesForPch(os.path.splitext(source)[1], pch_ext):
+                return [(None, None, self.output_obj)]
+        return []
+
+    def GetPchBuildCommands(self, arch):
+        """Not used on Windows as there are no additional build steps required
+        (instead, existing steps are modified in GetFlagsModifications below)."""
+        return []
+
+    def GetFlagsModifications(
+        self, input, output, implicit, command, cflags_c, cflags_cc, expand_special
+    ):
+        """Get the modified cflags and implicit dependencies that should be used
+        for the pch compilation step."""
+        if input == self.pch_source:
+            pch_output = ["/Yc" + self._PchHeader()]
+            if command == "cxx":
+                return (
+                    [("cflags_cc", map(expand_special, cflags_cc + pch_output))],
+                    self.output_obj,
+                    [],
+                )
+            elif command == "cc":
+                return (
+                    [("cflags_c", map(expand_special, cflags_c + pch_output))],
+                    self.output_obj,
+                    [],
+                )
+        return [], output, implicit
+
+
+vs_version = None
+
+
+def GetVSVersion(generator_flags):
+    global vs_version
+    if not vs_version:
+        vs_version = gyp.MSVSVersion.SelectVisualStudioVersion(
+            generator_flags.get("msvs_version", "auto"), allow_fallback=False
+        )
+    return vs_version
+
+
+def _GetVsvarsSetupArgs(generator_flags, arch):
+    vs = GetVSVersion(generator_flags)
+    return vs.SetupScript()
+
+
+def ExpandMacros(string, expansions):
+    """Expand $(Variable) per expansions dict. See MsvsSettings.GetVSMacroEnv
+    for the canonical way to retrieve a suitable dict."""
+    if "$" in string:
+        for old, new in expansions.items():
+            assert "$(" not in new, new
+            string = string.replace(old, new)
+    return string
+
+
+def _ExtractImportantEnvironment(output_of_set):
+    """Extracts environment variables required for the toolchain to run from
+    a textual dump output by the cmd.exe 'set' command."""
+    envvars_to_save = (
+        "goma_.*",  # TODO(scottmg): This is ugly, but needed for goma.
+        "include",
+        "lib",
+        "libpath",
+        "path",
+        "pathext",
+        "systemroot",
+        "temp",
+        "tmp",
+    )
+    env = {}
+    # This occasionally happens and leads to misleading SYSTEMROOT error messages
+    # if not caught here.
+    if output_of_set.count("=") == 0:
+        raise Exception("Invalid output_of_set. Value is:\n%s" % output_of_set)
+    for line in output_of_set.splitlines():
+        for envvar in envvars_to_save:
+            if re.match(envvar + "=", line.lower()):
+                var, setting = line.split("=", 1)
+                if envvar == "path":
+                    # Our own rules (for running gyp-win-tool) and other actions in
+                    # Chromium rely on python being in the path. Add the path to this
+                    # python here so that if it's not in the path when ninja is run
+                    # later, python will still be found.
+                    setting = os.path.dirname(sys.executable) + os.pathsep + setting
+                env[var.upper()] = setting
+                break
+    for required in ("SYSTEMROOT", "TEMP", "TMP"):
+        if required not in env:
+            raise Exception(
+                'Environment variable "%s" '
+                "required to be set to valid path" % required
+            )
+    return env
+
+
+def _FormatAsEnvironmentBlock(envvar_dict):
+    """Format as an 'environment block' directly suitable for CreateProcess.
+    Briefly this is a list of key=value\0, terminated by an additional \0. See
+    CreateProcess documentation for more details."""
+    block = ""
+    nul = "\0"
+    for key, value in envvar_dict.items():
+        block += key + "=" + value + nul
+    block += nul
+    return block
+
+
+def _ExtractCLPath(output_of_where):
+    """Gets the path to cl.exe based on the output of calling the environment
+    setup batch file, followed by the equivalent of `where`."""
+    # Take the first line, as that's the first found in the PATH.
+    for line in output_of_where.strip().splitlines():
+        if line.startswith("LOC:"):
+            return line[len("LOC:") :].strip()
+
+
+def GenerateEnvironmentFiles(
+    toplevel_build_dir, generator_flags, system_includes, open_out
+):
+    """It's not sufficient to have the absolute path to the compiler, linker,
+    etc. on Windows, as those tools rely on .dlls being in the PATH. We also
+    need to support both x86 and x64 compilers within the same build (to support
+    msvs_target_platform hackery). Different architectures require a different
+    compiler binary, and different supporting environment variables (INCLUDE,
+    LIB, LIBPATH). So, we extract the environment here, wrap all invocations
+    of compiler tools (cl, link, lib, rc, midl, etc.) via win_tool.py which
+    sets up the environment, and then we do not prefix the compiler with
+    an absolute path, instead preferring something like "cl.exe" in the rule
+    which will then run whichever the environment setup has put in the path.
+    When the following procedure to generate environment files does not
+    meet your requirement (e.g. for custom toolchains), you can pass
+    "-G ninja_use_custom_environment_files" to the gyp to suppress file
+    generation and use custom environment files prepared by yourself."""
+    archs = ("x86", "x64")
+    if generator_flags.get("ninja_use_custom_environment_files", 0):
+        cl_paths = {}
+        for arch in archs:
+            cl_paths[arch] = "cl.exe"
+        return cl_paths
+    vs = GetVSVersion(generator_flags)
+    cl_paths = {}
+    for arch in archs:
+        # Extract environment variables for subprocesses.
+        args = vs.SetupScript(arch)
+        args.extend(("&&", "set"))
+        popen = subprocess.Popen(
+            args, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT
+        )
+        variables = popen.communicate()[0].decode("utf-8")
+        if popen.returncode != 0:
+            raise Exception('"%s" failed with error %d' % (args, popen.returncode))
+        env = _ExtractImportantEnvironment(variables)
+
+        # Inject system includes from gyp files into INCLUDE.
+        if system_includes:
+            system_includes = system_includes | OrderedSet(
+                env.get("INCLUDE", "").split(";")
+            )
+            env["INCLUDE"] = ";".join(system_includes)
+
+        env_block = _FormatAsEnvironmentBlock(env)
+        f = open_out(os.path.join(toplevel_build_dir, "environment." + arch), "w")
+        f.write(env_block)
+        f.close()
+
+        # Find cl.exe location for this architecture.
+        args = vs.SetupScript(arch)
+        args.extend(
+            ("&&", "for", "%i", "in", "(cl.exe)", "do", "@echo", "LOC:%~$PATH:i")
+        )
+        popen = subprocess.Popen(args, shell=True, stdout=subprocess.PIPE)
+        output = popen.communicate()[0].decode("utf-8")
+        cl_paths[arch] = _ExtractCLPath(output)
+    return cl_paths
+
+
+def VerifyMissingSources(sources, build_dir, generator_flags, gyp_to_ninja):
+    """Emulate behavior of msvs_error_on_missing_sources present in the msvs
+    generator: Check that all regular source files, i.e. not created at run time,
+    exist on disk. Missing files cause needless recompilation when building via
+    VS, and we want this check to match for people/bots that build using ninja,
+    so they're not surprised when the VS build fails."""
+    if int(generator_flags.get("msvs_error_on_missing_sources", 0)):
+        no_specials = filter(lambda x: "$" not in x, sources)
+        relative = [os.path.join(build_dir, gyp_to_ninja(s)) for s in no_specials]
+        missing = [x for x in relative if not os.path.exists(x)]
+        if missing:
+            # They'll look like out\Release\..\..\stuff\things.cc, so normalize the
+            # path for a slightly less crazy looking output.
+            cleaned_up = [os.path.normpath(x) for x in missing]
+            raise Exception("Missing input files:\n%s" % "\n".join(cleaned_up))
+
+
+# Sets some values in default_variables, which are required for many
+# generators, run on Windows.
+def CalculateCommonVariables(default_variables, params):
+    generator_flags = params.get("generator_flags", {})
+
+    # Set a variable so conditions can be based on msvs_version.
+    msvs_version = gyp.msvs_emulation.GetVSVersion(generator_flags)
+    default_variables["MSVS_VERSION"] = msvs_version.ShortName()
+
+    # To determine processor word size on Windows, in addition to checking
+    # PROCESSOR_ARCHITECTURE (which reflects the word size of the current
+    # process), it is also necessary to check PROCESSOR_ARCHITEW6432 (which
+    # contains the actual word size of the system when running thru WOW64).
+    if "64" in os.environ.get("PROCESSOR_ARCHITECTURE", "") or "64" in os.environ.get(
+        "PROCESSOR_ARCHITEW6432", ""
+    ):
+        default_variables["MSVS_OS_BITS"] = 64
+    else:
+        default_variables["MSVS_OS_BITS"] = 32
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/ninja_syntax.py b/node_modules/node-gyp/gyp/pylib/gyp/ninja_syntax.py
new file mode 100644
index 0000000..0e3e86c
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/ninja_syntax.py
@@ -0,0 +1,174 @@
+# This file comes from
+#   https://github.com/martine/ninja/blob/master/misc/ninja_syntax.py
+# Do not edit!  Edit the upstream one instead.
+
+"""Python module for generating .ninja files.
+
+Note that this is emphatically not a required piece of Ninja; it's
+just a helpful utility for build-file-generation systems that already
+use Python.
+"""
+
+import textwrap
+
+
+def escape_path(word):
+    return word.replace("$ ", "$$ ").replace(" ", "$ ").replace(":", "$:")
+
+
+class Writer:
+    def __init__(self, output, width=78):
+        self.output = output
+        self.width = width
+
+    def newline(self):
+        self.output.write("\n")
+
+    def comment(self, text):
+        for line in textwrap.wrap(text, self.width - 2):
+            self.output.write("# " + line + "\n")
+
+    def variable(self, key, value, indent=0):
+        if value is None:
+            return
+        if isinstance(value, list):
+            value = " ".join(filter(None, value))  # Filter out empty strings.
+        self._line(f"{key} = {value}", indent)
+
+    def pool(self, name, depth):
+        self._line("pool %s" % name)
+        self.variable("depth", depth, indent=1)
+
+    def rule(
+        self,
+        name,
+        command,
+        description=None,
+        depfile=None,
+        generator=False,
+        pool=None,
+        restat=False,
+        rspfile=None,
+        rspfile_content=None,
+        deps=None,
+    ):
+        self._line("rule %s" % name)
+        self.variable("command", command, indent=1)
+        if description:
+            self.variable("description", description, indent=1)
+        if depfile:
+            self.variable("depfile", depfile, indent=1)
+        if generator:
+            self.variable("generator", "1", indent=1)
+        if pool:
+            self.variable("pool", pool, indent=1)
+        if restat:
+            self.variable("restat", "1", indent=1)
+        if rspfile:
+            self.variable("rspfile", rspfile, indent=1)
+        if rspfile_content:
+            self.variable("rspfile_content", rspfile_content, indent=1)
+        if deps:
+            self.variable("deps", deps, indent=1)
+
+    def build(
+        self, outputs, rule, inputs=None, implicit=None, order_only=None, variables=None
+    ):
+        outputs = self._as_list(outputs)
+        all_inputs = self._as_list(inputs)[:]
+        out_outputs = list(map(escape_path, outputs))
+        all_inputs = list(map(escape_path, all_inputs))
+
+        if implicit:
+            implicit = map(escape_path, self._as_list(implicit))
+            all_inputs.append("|")
+            all_inputs.extend(implicit)
+        if order_only:
+            order_only = map(escape_path, self._as_list(order_only))
+            all_inputs.append("||")
+            all_inputs.extend(order_only)
+
+        self._line(
+            "build {}: {}".format(" ".join(out_outputs), " ".join([rule] + all_inputs))
+        )
+
+        if variables:
+            if isinstance(variables, dict):
+                iterator = iter(variables.items())
+            else:
+                iterator = iter(variables)
+
+            for key, val in iterator:
+                self.variable(key, val, indent=1)
+
+        return outputs
+
+    def include(self, path):
+        self._line("include %s" % path)
+
+    def subninja(self, path):
+        self._line("subninja %s" % path)
+
+    def default(self, paths):
+        self._line("default %s" % " ".join(self._as_list(paths)))
+
+    def _count_dollars_before_index(self, s, i):
+        """Returns the number of '$' characters right in front of s[i]."""
+        dollar_count = 0
+        dollar_index = i - 1
+        while dollar_index > 0 and s[dollar_index] == "$":
+            dollar_count += 1
+            dollar_index -= 1
+        return dollar_count
+
+    def _line(self, text, indent=0):
+        """Write 'text' word-wrapped at self.width characters."""
+        leading_space = "  " * indent
+        while len(leading_space) + len(text) > self.width:
+            # The text is too wide; wrap if possible.
+
+            # Find the rightmost space that would obey our width constraint and
+            # that's not an escaped space.
+            available_space = self.width - len(leading_space) - len(" $")
+            space = available_space
+            while True:
+                space = text.rfind(" ", 0, space)
+                if space < 0 or self._count_dollars_before_index(text, space) % 2 == 0:
+                    break
+
+            if space < 0:
+                # No such space; just use the first unescaped space we can find.
+                space = available_space - 1
+                while True:
+                    space = text.find(" ", space + 1)
+                    if (
+                        space < 0
+                        or self._count_dollars_before_index(text, space) % 2 == 0
+                    ):
+                        break
+            if space < 0:
+                # Give up on breaking.
+                break
+
+            self.output.write(leading_space + text[0:space] + " $\n")
+            text = text[space + 1 :]
+
+            # Subsequent lines are continuations, so indent them.
+            leading_space = "  " * (indent + 2)
+
+        self.output.write(leading_space + text + "\n")
+
+    def _as_list(self, input):
+        if input is None:
+            return []
+        if isinstance(input, list):
+            return input
+        return [input]
+
+
+def escape(string):
+    """Escape a string such that it can be embedded into a Ninja file without
+    further interpretation."""
+    assert "\n" not in string, "Ninja syntax does not allow newlines"
+    # We only have one special metacharacter: '$'.
+    return string.replace("$", "$$")
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/simple_copy.py b/node_modules/node-gyp/gyp/pylib/gyp/simple_copy.py
new file mode 100644
index 0000000..729cec0
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/simple_copy.py
@@ -0,0 +1,61 @@
+# Copyright 2014 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""A clone of the default copy.deepcopy that doesn't handle cyclic
+structures or complex types except for dicts and lists. This is
+because gyp copies so large structure that small copy overhead ends up
+taking seconds in a project the size of Chromium."""
+
+
+class Error(Exception):
+    pass
+
+
+__all__ = ["Error", "deepcopy"]
+
+
+def deepcopy(x):
+    """Deep copy operation on gyp objects such as strings, ints, dicts
+  and lists. More than twice as fast as copy.deepcopy but much less
+  generic."""
+
+    try:
+        return _deepcopy_dispatch[type(x)](x)
+    except KeyError:
+        raise Error(
+            "Unsupported type %s for deepcopy. Use copy.deepcopy "
+            + "or expand simple_copy support." % type(x)
+        )
+
+
+_deepcopy_dispatch = d = {}
+
+
+def _deepcopy_atomic(x):
+    return x
+
+
+types = bool, float, int, str, type, type(None)
+
+for x in types:
+    d[x] = _deepcopy_atomic
+
+
+def _deepcopy_list(x):
+    return [deepcopy(a) for a in x]
+
+
+d[list] = _deepcopy_list
+
+
+def _deepcopy_dict(x):
+    y = {}
+    for key, value in x.items():
+        y[deepcopy(key)] = deepcopy(value)
+    return y
+
+
+d[dict] = _deepcopy_dict
+
+del d
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/win_tool.py b/node_modules/node-gyp/gyp/pylib/gyp/win_tool.py
new file mode 100644
index 0000000..638eee4
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/win_tool.py
@@ -0,0 +1,374 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Utility functions for Windows builds.
+
+These functions are executed via gyp-win-tool when using the ninja generator.
+"""
+
+
+import os
+import re
+import shutil
+import subprocess
+import stat
+import string
+import sys
+
+BASE_DIR = os.path.dirname(os.path.abspath(__file__))
+
+# A regex matching an argument corresponding to the output filename passed to
+# link.exe.
+_LINK_EXE_OUT_ARG = re.compile("/OUT:(?P<out>.+)$", re.IGNORECASE)
+
+
+def main(args):
+    executor = WinTool()
+    exit_code = executor.Dispatch(args)
+    if exit_code is not None:
+        sys.exit(exit_code)
+
+
+class WinTool:
+    """This class performs all the Windows tooling steps. The methods can either
+  be executed directly, or dispatched from an argument list."""
+
+    def _UseSeparateMspdbsrv(self, env, args):
+        """Allows to use a unique instance of mspdbsrv.exe per linker instead of a
+    shared one."""
+        if len(args) < 1:
+            raise Exception("Not enough arguments")
+
+        if args[0] != "link.exe":
+            return
+
+        # Use the output filename passed to the linker to generate an endpoint name
+        # for mspdbsrv.exe.
+        endpoint_name = None
+        for arg in args:
+            m = _LINK_EXE_OUT_ARG.match(arg)
+            if m:
+                endpoint_name = re.sub(
+                    r"\W+", "", "%s_%d" % (m.group("out"), os.getpid())
+                )
+                break
+
+        if endpoint_name is None:
+            return
+
+        # Adds the appropriate environment variable. This will be read by link.exe
+        # to know which instance of mspdbsrv.exe it should connect to (if it's
+        # not set then the default endpoint is used).
+        env["_MSPDBSRV_ENDPOINT_"] = endpoint_name
+
+    def Dispatch(self, args):
+        """Dispatches a string command to a method."""
+        if len(args) < 1:
+            raise Exception("Not enough arguments")
+
+        method = "Exec%s" % self._CommandifyName(args[0])
+        return getattr(self, method)(*args[1:])
+
+    def _CommandifyName(self, name_string):
+        """Transforms a tool name like recursive-mirror to RecursiveMirror."""
+        return name_string.title().replace("-", "")
+
+    def _GetEnv(self, arch):
+        """Gets the saved environment from a file for a given architecture."""
+        # The environment is saved as an "environment block" (see CreateProcess
+        # and msvs_emulation for details). We convert to a dict here.
+        # Drop last 2 NULs, one for list terminator, one for trailing vs. separator.
+        pairs = open(arch).read()[:-2].split("\0")
+        kvs = [item.split("=", 1) for item in pairs]
+        return dict(kvs)
+
+    def ExecStamp(self, path):
+        """Simple stamp command."""
+        open(path, "w").close()
+
+    def ExecRecursiveMirror(self, source, dest):
+        """Emulation of rm -rf out && cp -af in out."""
+        if os.path.exists(dest):
+            if os.path.isdir(dest):
+
+                def _on_error(fn, path, excinfo):
+                    # The operation failed, possibly because the file is set to
+                    # read-only. If that's why, make it writable and try the op again.
+                    if not os.access(path, os.W_OK):
+                        os.chmod(path, stat.S_IWRITE)
+                    fn(path)
+
+                shutil.rmtree(dest, onerror=_on_error)
+            else:
+                if not os.access(dest, os.W_OK):
+                    # Attempt to make the file writable before deleting it.
+                    os.chmod(dest, stat.S_IWRITE)
+                os.unlink(dest)
+
+        if os.path.isdir(source):
+            shutil.copytree(source, dest)
+        else:
+            shutil.copy2(source, dest)
+
+    def ExecLinkWrapper(self, arch, use_separate_mspdbsrv, *args):
+        """Filter diagnostic output from link that looks like:
+    '   Creating library ui.dll.lib and object ui.dll.exp'
+    This happens when there are exports from the dll or exe.
+    """
+        env = self._GetEnv(arch)
+        if use_separate_mspdbsrv == "True":
+            self._UseSeparateMspdbsrv(env, args)
+        if sys.platform == "win32":
+            args = list(args)  # *args is a tuple by default, which is read-only.
+            args[0] = args[0].replace("/", "\\")
+        # https://docs.python.org/2/library/subprocess.html:
+        # "On Unix with shell=True [...] if args is a sequence, the first item
+        # specifies the command string, and any additional items will be treated as
+        # additional arguments to the shell itself.  That is to say, Popen does the
+        # equivalent of:
+        #   Popen(['/bin/sh', '-c', args[0], args[1], ...])"
+        # For that reason, since going through the shell doesn't seem necessary on
+        # non-Windows don't do that there.
+        link = subprocess.Popen(
+            args,
+            shell=sys.platform == "win32",
+            env=env,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.STDOUT,
+        )
+        out = link.communicate()[0].decode("utf-8")
+        for line in out.splitlines():
+            if (
+                not line.startswith("   Creating library ")
+                and not line.startswith("Generating code")
+                and not line.startswith("Finished generating code")
+            ):
+                print(line)
+        return link.returncode
+
+    def ExecLinkWithManifests(
+        self,
+        arch,
+        embed_manifest,
+        out,
+        ldcmd,
+        resname,
+        mt,
+        rc,
+        intermediate_manifest,
+        *manifests
+    ):
+        """A wrapper for handling creating a manifest resource and then executing
+    a link command."""
+        # The 'normal' way to do manifests is to have link generate a manifest
+        # based on gathering dependencies from the object files, then merge that
+        # manifest with other manifests supplied as sources, convert the merged
+        # manifest to a resource, and then *relink*, including the compiled
+        # version of the manifest resource. This breaks incremental linking, and
+        # is generally overly complicated. Instead, we merge all the manifests
+        # provided (along with one that includes what would normally be in the
+        # linker-generated one, see msvs_emulation.py), and include that into the
+        # first and only link. We still tell link to generate a manifest, but we
+        # only use that to assert that our simpler process did not miss anything.
+        variables = {
+            "python": sys.executable,
+            "arch": arch,
+            "out": out,
+            "ldcmd": ldcmd,
+            "resname": resname,
+            "mt": mt,
+            "rc": rc,
+            "intermediate_manifest": intermediate_manifest,
+            "manifests": " ".join(manifests),
+        }
+        add_to_ld = ""
+        if manifests:
+            subprocess.check_call(
+                "%(python)s gyp-win-tool manifest-wrapper %(arch)s %(mt)s -nologo "
+                "-manifest %(manifests)s -out:%(out)s.manifest" % variables
+            )
+            if embed_manifest == "True":
+                subprocess.check_call(
+                    "%(python)s gyp-win-tool manifest-to-rc %(arch)s %(out)s.manifest"
+                    " %(out)s.manifest.rc %(resname)s" % variables
+                )
+                subprocess.check_call(
+                    "%(python)s gyp-win-tool rc-wrapper %(arch)s %(rc)s "
+                    "%(out)s.manifest.rc" % variables
+                )
+                add_to_ld = " %(out)s.manifest.res" % variables
+        subprocess.check_call(ldcmd + add_to_ld)
+
+        # Run mt.exe on the theoretically complete manifest we generated, merging
+        # it with the one the linker generated to confirm that the linker
+        # generated one does not add anything. This is strictly unnecessary for
+        # correctness, it's only to verify that e.g. /MANIFESTDEPENDENCY was not
+        # used in a #pragma comment.
+        if manifests:
+            # Merge the intermediate one with ours to .assert.manifest, then check
+            # that .assert.manifest is identical to ours.
+            subprocess.check_call(
+                "%(python)s gyp-win-tool manifest-wrapper %(arch)s %(mt)s -nologo "
+                "-manifest %(out)s.manifest %(intermediate_manifest)s "
+                "-out:%(out)s.assert.manifest" % variables
+            )
+            assert_manifest = "%(out)s.assert.manifest" % variables
+            our_manifest = "%(out)s.manifest" % variables
+            # Load and normalize the manifests. mt.exe sometimes removes whitespace,
+            # and sometimes doesn't unfortunately.
+            with open(our_manifest) as our_f:
+                with open(assert_manifest) as assert_f:
+                    translator = str.maketrans('', '', string.whitespace)
+                    our_data = our_f.read().translate(translator)
+                    assert_data = assert_f.read().translate(translator)
+            if our_data != assert_data:
+                os.unlink(out)
+
+                def dump(filename):
+                    print(filename, file=sys.stderr)
+                    print("-----", file=sys.stderr)
+                    with open(filename) as f:
+                        print(f.read(), file=sys.stderr)
+                        print("-----", file=sys.stderr)
+
+                dump(intermediate_manifest)
+                dump(our_manifest)
+                dump(assert_manifest)
+                sys.stderr.write(
+                    'Linker generated manifest "%s" added to final manifest "%s" '
+                    '(result in "%s"). '
+                    "Were /MANIFEST switches used in #pragma statements? "
+                    % (intermediate_manifest, our_manifest, assert_manifest)
+                )
+                return 1
+
+    def ExecManifestWrapper(self, arch, *args):
+        """Run manifest tool with environment set. Strip out undesirable warning
+    (some XML blocks are recognized by the OS loader, but not the manifest
+    tool)."""
+        env = self._GetEnv(arch)
+        popen = subprocess.Popen(
+            args, shell=True, env=env, stdout=subprocess.PIPE, stderr=subprocess.STDOUT
+        )
+        out = popen.communicate()[0].decode("utf-8")
+        for line in out.splitlines():
+            if line and "manifest authoring warning 81010002" not in line:
+                print(line)
+        return popen.returncode
+
+    def ExecManifestToRc(self, arch, *args):
+        """Creates a resource file pointing a SxS assembly manifest.
+    |args| is tuple containing path to resource file, path to manifest file
+    and resource name which can be "1" (for executables) or "2" (for DLLs)."""
+        manifest_path, resource_path, resource_name = args
+        with open(resource_path, "w") as output:
+            output.write(
+                '#include <windows.h>\n%s RT_MANIFEST "%s"'
+                % (resource_name, os.path.abspath(manifest_path).replace("\\", "/"))
+            )
+
+    def ExecMidlWrapper(self, arch, outdir, tlb, h, dlldata, iid, proxy, idl, *flags):
+        """Filter noisy filenames output from MIDL compile step that isn't
+    quietable via command line flags.
+    """
+        args = (
+            ["midl", "/nologo"]
+            + list(flags)
+            + [
+                "/out",
+                outdir,
+                "/tlb",
+                tlb,
+                "/h",
+                h,
+                "/dlldata",
+                dlldata,
+                "/iid",
+                iid,
+                "/proxy",
+                proxy,
+                idl,
+            ]
+        )
+        env = self._GetEnv(arch)
+        popen = subprocess.Popen(
+            args, shell=True, env=env, stdout=subprocess.PIPE, stderr=subprocess.STDOUT
+        )
+        out = popen.communicate()[0].decode("utf-8")
+        # Filter junk out of stdout, and write filtered versions. Output we want
+        # to filter is pairs of lines that look like this:
+        # Processing C:\Program Files (x86)\Microsoft SDKs\...\include\objidl.idl
+        # objidl.idl
+        lines = out.splitlines()
+        prefixes = ("Processing ", "64 bit Processing ")
+        processing = {os.path.basename(x) for x in lines if x.startswith(prefixes)}
+        for line in lines:
+            if not line.startswith(prefixes) and line not in processing:
+                print(line)
+        return popen.returncode
+
+    def ExecAsmWrapper(self, arch, *args):
+        """Filter logo banner from invocations of asm.exe."""
+        env = self._GetEnv(arch)
+        popen = subprocess.Popen(
+            args, shell=True, env=env, stdout=subprocess.PIPE, stderr=subprocess.STDOUT
+        )
+        out = popen.communicate()[0].decode("utf-8")
+        for line in out.splitlines():
+            if (
+                not line.startswith("Copyright (C) Microsoft Corporation")
+                and not line.startswith("Microsoft (R) Macro Assembler")
+                and not line.startswith(" Assembling: ")
+                and line
+            ):
+                print(line)
+        return popen.returncode
+
+    def ExecRcWrapper(self, arch, *args):
+        """Filter logo banner from invocations of rc.exe. Older versions of RC
+    don't support the /nologo flag."""
+        env = self._GetEnv(arch)
+        popen = subprocess.Popen(
+            args, shell=True, env=env, stdout=subprocess.PIPE, stderr=subprocess.STDOUT
+        )
+        out = popen.communicate()[0].decode("utf-8")
+        for line in out.splitlines():
+            if (
+                not line.startswith("Microsoft (R) Windows (R) Resource Compiler")
+                and not line.startswith("Copyright (C) Microsoft Corporation")
+                and line
+            ):
+                print(line)
+        return popen.returncode
+
+    def ExecActionWrapper(self, arch, rspfile, *dir):
+        """Runs an action command line from a response file using the environment
+    for |arch|. If |dir| is supplied, use that as the working directory."""
+        env = self._GetEnv(arch)
+        # TODO(scottmg): This is a temporary hack to get some specific variables
+        # through to actions that are set after gyp-time. http://crbug.com/333738.
+        for k, v in os.environ.items():
+            if k not in env:
+                env[k] = v
+        args = open(rspfile).read()
+        dir = dir[0] if dir else None
+        return subprocess.call(args, shell=True, env=env, cwd=dir)
+
+    def ExecClCompile(self, project_dir, selected_files):
+        """Executed by msvs-ninja projects when the 'ClCompile' target is used to
+    build selected C/C++ files."""
+        project_dir = os.path.relpath(project_dir, BASE_DIR)
+        selected_files = selected_files.split(";")
+        ninja_targets = [
+            os.path.join(project_dir, filename) + "^^" for filename in selected_files
+        ]
+        cmd = ["ninja.exe"]
+        cmd.extend(ninja_targets)
+        return subprocess.call(cmd, shell=True, cwd=BASE_DIR)
+
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/xcode_emulation.py b/node_modules/node-gyp/gyp/pylib/gyp/xcode_emulation.py
new file mode 100644
index 0000000..a75d8ee
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/xcode_emulation.py
@@ -0,0 +1,1939 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""
+This module contains classes that help to emulate xcodebuild behavior on top of
+other build systems, such as make and ninja.
+"""
+
+
+import copy
+import gyp.common
+import os
+import os.path
+import re
+import shlex
+import subprocess
+import sys
+from gyp.common import GypError
+
+# Populated lazily by XcodeVersion, for efficiency, and to fix an issue when
+# "xcodebuild" is called too quickly (it has been found to return incorrect
+# version number).
+XCODE_VERSION_CACHE = None
+
+# Populated lazily by GetXcodeArchsDefault, to an |XcodeArchsDefault| instance
+# corresponding to the installed version of Xcode.
+XCODE_ARCHS_DEFAULT_CACHE = None
+
+
+def XcodeArchsVariableMapping(archs, archs_including_64_bit=None):
+    """Constructs a dictionary with expansion for $(ARCHS_STANDARD) variable,
+  and optionally for $(ARCHS_STANDARD_INCLUDING_64_BIT)."""
+    mapping = {"$(ARCHS_STANDARD)": archs}
+    if archs_including_64_bit:
+        mapping["$(ARCHS_STANDARD_INCLUDING_64_BIT)"] = archs_including_64_bit
+    return mapping
+
+
+class XcodeArchsDefault:
+    """A class to resolve ARCHS variable from xcode_settings, resolving Xcode
+  macros and implementing filtering by VALID_ARCHS. The expansion of macros
+  depends on the SDKROOT used ("macosx", "iphoneos", "iphonesimulator") and
+  on the version of Xcode.
+  """
+
+    # Match variable like $(ARCHS_STANDARD).
+    variable_pattern = re.compile(r"\$\([a-zA-Z_][a-zA-Z0-9_]*\)$")
+
+    def __init__(self, default, mac, iphonesimulator, iphoneos):
+        self._default = (default,)
+        self._archs = {"mac": mac, "ios": iphoneos, "iossim": iphonesimulator}
+
+    def _VariableMapping(self, sdkroot):
+        """Returns the dictionary of variable mapping depending on the SDKROOT."""
+        sdkroot = sdkroot.lower()
+        if "iphoneos" in sdkroot:
+            return self._archs["ios"]
+        elif "iphonesimulator" in sdkroot:
+            return self._archs["iossim"]
+        else:
+            return self._archs["mac"]
+
+    def _ExpandArchs(self, archs, sdkroot):
+        """Expands variables references in ARCHS, and remove duplicates."""
+        variable_mapping = self._VariableMapping(sdkroot)
+        expanded_archs = []
+        for arch in archs:
+            if self.variable_pattern.match(arch):
+                variable = arch
+                try:
+                    variable_expansion = variable_mapping[variable]
+                    for arch in variable_expansion:
+                        if arch not in expanded_archs:
+                            expanded_archs.append(arch)
+                except KeyError:
+                    print('Warning: Ignoring unsupported variable "%s".' % variable)
+            elif arch not in expanded_archs:
+                expanded_archs.append(arch)
+        return expanded_archs
+
+    def ActiveArchs(self, archs, valid_archs, sdkroot):
+        """Expands variables references in ARCHS, and filter by VALID_ARCHS if it
+    is defined (if not set, Xcode accept any value in ARCHS, otherwise, only
+    values present in VALID_ARCHS are kept)."""
+        expanded_archs = self._ExpandArchs(archs or self._default, sdkroot or "")
+        if valid_archs:
+            filtered_archs = []
+            for arch in expanded_archs:
+                if arch in valid_archs:
+                    filtered_archs.append(arch)
+            expanded_archs = filtered_archs
+        return expanded_archs
+
+
+def GetXcodeArchsDefault():
+    """Returns the |XcodeArchsDefault| object to use to expand ARCHS for the
+  installed version of Xcode. The default values used by Xcode for ARCHS
+  and the expansion of the variables depends on the version of Xcode used.
+
+  For all version anterior to Xcode 5.0 or posterior to Xcode 5.1 included
+  uses $(ARCHS_STANDARD) if ARCHS is unset, while Xcode 5.0 to 5.0.2 uses
+  $(ARCHS_STANDARD_INCLUDING_64_BIT). This variable was added to Xcode 5.0
+  and deprecated with Xcode 5.1.
+
+  For "macosx" SDKROOT, all version starting with Xcode 5.0 includes 64-bit
+  architecture as part of $(ARCHS_STANDARD) and default to only building it.
+
+  For "iphoneos" and "iphonesimulator" SDKROOT, 64-bit architectures are part
+  of $(ARCHS_STANDARD_INCLUDING_64_BIT) from Xcode 5.0. From Xcode 5.1, they
+  are also part of $(ARCHS_STANDARD).
+
+  All these rules are coded in the construction of the |XcodeArchsDefault|
+  object to use depending on the version of Xcode detected. The object is
+  for performance reason."""
+    global XCODE_ARCHS_DEFAULT_CACHE
+    if XCODE_ARCHS_DEFAULT_CACHE:
+        return XCODE_ARCHS_DEFAULT_CACHE
+    xcode_version, _ = XcodeVersion()
+    if xcode_version < "0500":
+        XCODE_ARCHS_DEFAULT_CACHE = XcodeArchsDefault(
+            "$(ARCHS_STANDARD)",
+            XcodeArchsVariableMapping(["i386"]),
+            XcodeArchsVariableMapping(["i386"]),
+            XcodeArchsVariableMapping(["armv7"]),
+        )
+    elif xcode_version < "0510":
+        XCODE_ARCHS_DEFAULT_CACHE = XcodeArchsDefault(
+            "$(ARCHS_STANDARD_INCLUDING_64_BIT)",
+            XcodeArchsVariableMapping(["x86_64"], ["x86_64"]),
+            XcodeArchsVariableMapping(["i386"], ["i386", "x86_64"]),
+            XcodeArchsVariableMapping(
+                ["armv7", "armv7s"], ["armv7", "armv7s", "arm64"]
+            ),
+        )
+    else:
+        XCODE_ARCHS_DEFAULT_CACHE = XcodeArchsDefault(
+            "$(ARCHS_STANDARD)",
+            XcodeArchsVariableMapping(["x86_64"], ["x86_64"]),
+            XcodeArchsVariableMapping(["i386", "x86_64"], ["i386", "x86_64"]),
+            XcodeArchsVariableMapping(
+                ["armv7", "armv7s", "arm64"], ["armv7", "armv7s", "arm64"]
+            ),
+        )
+    return XCODE_ARCHS_DEFAULT_CACHE
+
+
+class XcodeSettings:
+    """A class that understands the gyp 'xcode_settings' object."""
+
+    # Populated lazily by _SdkPath(). Shared by all XcodeSettings, so cached
+    # at class-level for efficiency.
+    _sdk_path_cache = {}
+    _platform_path_cache = {}
+    _sdk_root_cache = {}
+
+    # Populated lazily by GetExtraPlistItems(). Shared by all XcodeSettings, so
+    # cached at class-level for efficiency.
+    _plist_cache = {}
+
+    # Populated lazily by GetIOSPostbuilds.  Shared by all XcodeSettings, so
+    # cached at class-level for efficiency.
+    _codesigning_key_cache = {}
+
+    def __init__(self, spec):
+        self.spec = spec
+
+        self.isIOS = False
+        self.mac_toolchain_dir = None
+        self.header_map_path = None
+
+        # Per-target 'xcode_settings' are pushed down into configs earlier by gyp.
+        # This means self.xcode_settings[config] always contains all settings
+        # for that config -- the per-target settings as well. Settings that are
+        # the same for all configs are implicitly per-target settings.
+        self.xcode_settings = {}
+        configs = spec["configurations"]
+        for configname, config in configs.items():
+            self.xcode_settings[configname] = config.get("xcode_settings", {})
+            self._ConvertConditionalKeys(configname)
+            if self.xcode_settings[configname].get("IPHONEOS_DEPLOYMENT_TARGET", None):
+                self.isIOS = True
+
+        # This is only non-None temporarily during the execution of some methods.
+        self.configname = None
+
+        # Used by _AdjustLibrary to match .a and .dylib entries in libraries.
+        self.library_re = re.compile(r"^lib([^/]+)\.(a|dylib)$")
+
+    def _ConvertConditionalKeys(self, configname):
+        """Converts or warns on conditional keys.  Xcode supports conditional keys,
+    such as CODE_SIGN_IDENTITY[sdk=iphoneos*].  This is a partial implementation
+    with some keys converted while the rest force a warning."""
+        settings = self.xcode_settings[configname]
+        conditional_keys = [key for key in settings if key.endswith("]")]
+        for key in conditional_keys:
+            # If you need more, speak up at http://crbug.com/122592
+            if key.endswith("[sdk=iphoneos*]"):
+                if configname.endswith("iphoneos"):
+                    new_key = key.split("[")[0]
+                    settings[new_key] = settings[key]
+            else:
+                print(
+                    "Warning: Conditional keys not implemented, ignoring:",
+                    " ".join(conditional_keys),
+                )
+            del settings[key]
+
+    def _Settings(self):
+        assert self.configname
+        return self.xcode_settings[self.configname]
+
+    def _Test(self, test_key, cond_key, default):
+        return self._Settings().get(test_key, default) == cond_key
+
+    def _Appendf(self, lst, test_key, format_str, default=None):
+        if test_key in self._Settings():
+            lst.append(format_str % str(self._Settings()[test_key]))
+        elif default:
+            lst.append(format_str % str(default))
+
+    def _WarnUnimplemented(self, test_key):
+        if test_key in self._Settings():
+            print('Warning: Ignoring not yet implemented key "%s".' % test_key)
+
+    def IsBinaryOutputFormat(self, configname):
+        default = "binary" if self.isIOS else "xml"
+        format = self.xcode_settings[configname].get("INFOPLIST_OUTPUT_FORMAT", default)
+        return format == "binary"
+
+    def IsIosFramework(self):
+        return self.spec["type"] == "shared_library" and self._IsBundle() and self.isIOS
+
+    def _IsBundle(self):
+        return (
+            int(self.spec.get("mac_bundle", 0)) != 0
+            or self._IsXCTest()
+            or self._IsXCUiTest()
+        )
+
+    def _IsXCTest(self):
+        return int(self.spec.get("mac_xctest_bundle", 0)) != 0
+
+    def _IsXCUiTest(self):
+        return int(self.spec.get("mac_xcuitest_bundle", 0)) != 0
+
+    def _IsIosAppExtension(self):
+        return int(self.spec.get("ios_app_extension", 0)) != 0
+
+    def _IsIosWatchKitExtension(self):
+        return int(self.spec.get("ios_watchkit_extension", 0)) != 0
+
+    def _IsIosWatchApp(self):
+        return int(self.spec.get("ios_watch_app", 0)) != 0
+
+    def GetFrameworkVersion(self):
+        """Returns the framework version of the current target. Only valid for
+    bundles."""
+        assert self._IsBundle()
+        return self.GetPerTargetSetting("FRAMEWORK_VERSION", default="A")
+
+    def GetWrapperExtension(self):
+        """Returns the bundle extension (.app, .framework, .plugin, etc).  Only
+    valid for bundles."""
+        assert self._IsBundle()
+        if self.spec["type"] in ("loadable_module", "shared_library"):
+            default_wrapper_extension = {
+                "loadable_module": "bundle",
+                "shared_library": "framework",
+            }[self.spec["type"]]
+            wrapper_extension = self.GetPerTargetSetting(
+                "WRAPPER_EXTENSION", default=default_wrapper_extension
+            )
+            return "." + self.spec.get("product_extension", wrapper_extension)
+        elif self.spec["type"] == "executable":
+            if self._IsIosAppExtension() or self._IsIosWatchKitExtension():
+                return "." + self.spec.get("product_extension", "appex")
+            else:
+                return "." + self.spec.get("product_extension", "app")
+        else:
+            assert False, "Don't know extension for '{}', target '{}'".format(
+                self.spec["type"],
+                self.spec["target_name"],
+            )
+
+    def GetProductName(self):
+        """Returns PRODUCT_NAME."""
+        return self.spec.get("product_name", self.spec["target_name"])
+
+    def GetFullProductName(self):
+        """Returns FULL_PRODUCT_NAME."""
+        if self._IsBundle():
+            return self.GetWrapperName()
+        else:
+            return self._GetStandaloneBinaryPath()
+
+    def GetWrapperName(self):
+        """Returns the directory name of the bundle represented by this target.
+    Only valid for bundles."""
+        assert self._IsBundle()
+        return self.GetProductName() + self.GetWrapperExtension()
+
+    def GetBundleContentsFolderPath(self):
+        """Returns the qualified path to the bundle's contents folder. E.g.
+    Chromium.app/Contents or Foo.bundle/Versions/A. Only valid for bundles."""
+        if self.isIOS:
+            return self.GetWrapperName()
+        assert self._IsBundle()
+        if self.spec["type"] == "shared_library":
+            return os.path.join(
+                self.GetWrapperName(), "Versions", self.GetFrameworkVersion()
+            )
+        else:
+            # loadable_modules have a 'Contents' folder like executables.
+            return os.path.join(self.GetWrapperName(), "Contents")
+
+    def GetBundleResourceFolder(self):
+        """Returns the qualified path to the bundle's resource folder. E.g.
+    Chromium.app/Contents/Resources. Only valid for bundles."""
+        assert self._IsBundle()
+        if self.isIOS:
+            return self.GetBundleContentsFolderPath()
+        return os.path.join(self.GetBundleContentsFolderPath(), "Resources")
+
+    def GetBundleExecutableFolderPath(self):
+        """Returns the qualified path to the bundle's executables folder. E.g.
+    Chromium.app/Contents/MacOS. Only valid for bundles."""
+        assert self._IsBundle()
+        if self.spec["type"] in ("shared_library") or self.isIOS:
+            return self.GetBundleContentsFolderPath()
+        elif self.spec["type"] in ("executable", "loadable_module"):
+            return os.path.join(self.GetBundleContentsFolderPath(), "MacOS")
+
+    def GetBundleJavaFolderPath(self):
+        """Returns the qualified path to the bundle's Java resource folder.
+    E.g. Chromium.app/Contents/Resources/Java. Only valid for bundles."""
+        assert self._IsBundle()
+        return os.path.join(self.GetBundleResourceFolder(), "Java")
+
+    def GetBundleFrameworksFolderPath(self):
+        """Returns the qualified path to the bundle's frameworks folder. E.g,
+    Chromium.app/Contents/Frameworks. Only valid for bundles."""
+        assert self._IsBundle()
+        return os.path.join(self.GetBundleContentsFolderPath(), "Frameworks")
+
+    def GetBundleSharedFrameworksFolderPath(self):
+        """Returns the qualified path to the bundle's frameworks folder. E.g,
+    Chromium.app/Contents/SharedFrameworks. Only valid for bundles."""
+        assert self._IsBundle()
+        return os.path.join(self.GetBundleContentsFolderPath(), "SharedFrameworks")
+
+    def GetBundleSharedSupportFolderPath(self):
+        """Returns the qualified path to the bundle's shared support folder. E.g,
+    Chromium.app/Contents/SharedSupport. Only valid for bundles."""
+        assert self._IsBundle()
+        if self.spec["type"] == "shared_library":
+            return self.GetBundleResourceFolder()
+        else:
+            return os.path.join(self.GetBundleContentsFolderPath(), "SharedSupport")
+
+    def GetBundlePlugInsFolderPath(self):
+        """Returns the qualified path to the bundle's plugins folder. E.g,
+    Chromium.app/Contents/PlugIns. Only valid for bundles."""
+        assert self._IsBundle()
+        return os.path.join(self.GetBundleContentsFolderPath(), "PlugIns")
+
+    def GetBundleXPCServicesFolderPath(self):
+        """Returns the qualified path to the bundle's XPC services folder. E.g,
+    Chromium.app/Contents/XPCServices. Only valid for bundles."""
+        assert self._IsBundle()
+        return os.path.join(self.GetBundleContentsFolderPath(), "XPCServices")
+
+    def GetBundlePlistPath(self):
+        """Returns the qualified path to the bundle's plist file. E.g.
+    Chromium.app/Contents/Info.plist. Only valid for bundles."""
+        assert self._IsBundle()
+        if (
+            self.spec["type"] in ("executable", "loadable_module")
+            or self.IsIosFramework()
+        ):
+            return os.path.join(self.GetBundleContentsFolderPath(), "Info.plist")
+        else:
+            return os.path.join(
+                self.GetBundleContentsFolderPath(), "Resources", "Info.plist"
+            )
+
+    def GetProductType(self):
+        """Returns the PRODUCT_TYPE of this target."""
+        if self._IsIosAppExtension():
+            assert self._IsBundle(), (
+                "ios_app_extension flag requires mac_bundle "
+                "(target %s)" % self.spec["target_name"]
+            )
+            return "com.apple.product-type.app-extension"
+        if self._IsIosWatchKitExtension():
+            assert self._IsBundle(), (
+                "ios_watchkit_extension flag requires "
+                "mac_bundle (target %s)" % self.spec["target_name"]
+            )
+            return "com.apple.product-type.watchkit-extension"
+        if self._IsIosWatchApp():
+            assert self._IsBundle(), (
+                "ios_watch_app flag requires mac_bundle "
+                "(target %s)" % self.spec["target_name"]
+            )
+            return "com.apple.product-type.application.watchapp"
+        if self._IsXCUiTest():
+            assert self._IsBundle(), (
+                "mac_xcuitest_bundle flag requires mac_bundle "
+                "(target %s)" % self.spec["target_name"]
+            )
+            return "com.apple.product-type.bundle.ui-testing"
+        if self._IsBundle():
+            return {
+                "executable": "com.apple.product-type.application",
+                "loadable_module": "com.apple.product-type.bundle",
+                "shared_library": "com.apple.product-type.framework",
+            }[self.spec["type"]]
+        else:
+            return {
+                "executable": "com.apple.product-type.tool",
+                "loadable_module": "com.apple.product-type.library.dynamic",
+                "shared_library": "com.apple.product-type.library.dynamic",
+                "static_library": "com.apple.product-type.library.static",
+            }[self.spec["type"]]
+
+    def GetMachOType(self):
+        """Returns the MACH_O_TYPE of this target."""
+        # Weird, but matches Xcode.
+        if not self._IsBundle() and self.spec["type"] == "executable":
+            return ""
+        return {
+            "executable": "mh_execute",
+            "static_library": "staticlib",
+            "shared_library": "mh_dylib",
+            "loadable_module": "mh_bundle",
+        }[self.spec["type"]]
+
+    def _GetBundleBinaryPath(self):
+        """Returns the name of the bundle binary of by this target.
+    E.g. Chromium.app/Contents/MacOS/Chromium. Only valid for bundles."""
+        assert self._IsBundle()
+        return os.path.join(
+            self.GetBundleExecutableFolderPath(), self.GetExecutableName()
+        )
+
+    def _GetStandaloneExecutableSuffix(self):
+        if "product_extension" in self.spec:
+            return "." + self.spec["product_extension"]
+        return {
+            "executable": "",
+            "static_library": ".a",
+            "shared_library": ".dylib",
+            "loadable_module": ".so",
+        }[self.spec["type"]]
+
+    def _GetStandaloneExecutablePrefix(self):
+        return self.spec.get(
+            "product_prefix",
+            {
+                "executable": "",
+                "static_library": "lib",
+                "shared_library": "lib",
+                # Non-bundled loadable_modules are called foo.so for some reason
+                # (that is, .so and no prefix) with the xcode build -- match that.
+                "loadable_module": "",
+            }[self.spec["type"]],
+        )
+
+    def _GetStandaloneBinaryPath(self):
+        """Returns the name of the non-bundle binary represented by this target.
+    E.g. hello_world. Only valid for non-bundles."""
+        assert not self._IsBundle()
+        assert self.spec["type"] in (
+            "executable",
+            "shared_library",
+            "static_library",
+            "loadable_module",
+        ), ("Unexpected type %s" % self.spec["type"])
+        target = self.spec["target_name"]
+        if self.spec["type"] == "static_library":
+            if target[:3] == "lib":
+                target = target[3:]
+        elif self.spec["type"] in ("loadable_module", "shared_library"):
+            if target[:3] == "lib":
+                target = target[3:]
+
+        target_prefix = self._GetStandaloneExecutablePrefix()
+        target = self.spec.get("product_name", target)
+        target_ext = self._GetStandaloneExecutableSuffix()
+        return target_prefix + target + target_ext
+
+    def GetExecutableName(self):
+        """Returns the executable name of the bundle represented by this target.
+    E.g. Chromium."""
+        if self._IsBundle():
+            return self.spec.get("product_name", self.spec["target_name"])
+        else:
+            return self._GetStandaloneBinaryPath()
+
+    def GetExecutablePath(self):
+        """Returns the qualified path to the primary executable of the bundle
+    represented by this target. E.g. Chromium.app/Contents/MacOS/Chromium."""
+        if self._IsBundle():
+            return self._GetBundleBinaryPath()
+        else:
+            return self._GetStandaloneBinaryPath()
+
+    def GetActiveArchs(self, configname):
+        """Returns the architectures this target should be built for."""
+        config_settings = self.xcode_settings[configname]
+        xcode_archs_default = GetXcodeArchsDefault()
+        return xcode_archs_default.ActiveArchs(
+            config_settings.get("ARCHS"),
+            config_settings.get("VALID_ARCHS"),
+            config_settings.get("SDKROOT"),
+        )
+
+    def _GetSdkVersionInfoItem(self, sdk, infoitem):
+        # xcodebuild requires Xcode and can't run on Command Line Tools-only
+        # systems from 10.7 onward.
+        # Since the CLT has no SDK paths anyway, returning None is the
+        # most sensible route and should still do the right thing.
+        try:
+            return GetStdoutQuiet(["xcrun", "--sdk", sdk, infoitem])
+        except GypError:
+            pass
+
+    def _SdkRoot(self, configname):
+        if configname is None:
+            configname = self.configname
+        return self.GetPerConfigSetting("SDKROOT", configname, default="")
+
+    def _XcodePlatformPath(self, configname=None):
+        sdk_root = self._SdkRoot(configname)
+        if sdk_root not in XcodeSettings._platform_path_cache:
+            platform_path = self._GetSdkVersionInfoItem(
+                sdk_root, "--show-sdk-platform-path"
+            )
+            XcodeSettings._platform_path_cache[sdk_root] = platform_path
+        return XcodeSettings._platform_path_cache[sdk_root]
+
+    def _SdkPath(self, configname=None):
+        sdk_root = self._SdkRoot(configname)
+        if sdk_root.startswith("/"):
+            return sdk_root
+        return self._XcodeSdkPath(sdk_root)
+
+    def _XcodeSdkPath(self, sdk_root):
+        if sdk_root not in XcodeSettings._sdk_path_cache:
+            sdk_path = self._GetSdkVersionInfoItem(sdk_root, "--show-sdk-path")
+            XcodeSettings._sdk_path_cache[sdk_root] = sdk_path
+            if sdk_root:
+                XcodeSettings._sdk_root_cache[sdk_path] = sdk_root
+        return XcodeSettings._sdk_path_cache[sdk_root]
+
+    def _AppendPlatformVersionMinFlags(self, lst):
+        self._Appendf(lst, "MACOSX_DEPLOYMENT_TARGET", "-mmacosx-version-min=%s")
+        if "IPHONEOS_DEPLOYMENT_TARGET" in self._Settings():
+            # TODO: Implement this better?
+            sdk_path_basename = os.path.basename(self._SdkPath())
+            if sdk_path_basename.lower().startswith("iphonesimulator"):
+                self._Appendf(
+                    lst, "IPHONEOS_DEPLOYMENT_TARGET", "-mios-simulator-version-min=%s"
+                )
+            else:
+                self._Appendf(
+                    lst, "IPHONEOS_DEPLOYMENT_TARGET", "-miphoneos-version-min=%s"
+                )
+
+    def GetCflags(self, configname, arch=None):
+        """Returns flags that need to be added to .c, .cc, .m, and .mm
+    compilations."""
+        # This functions (and the similar ones below) do not offer complete
+        # emulation of all xcode_settings keys. They're implemented on demand.
+
+        self.configname = configname
+        cflags = []
+
+        sdk_root = self._SdkPath()
+        if "SDKROOT" in self._Settings() and sdk_root:
+            cflags.append("-isysroot %s" % sdk_root)
+
+        if self.header_map_path:
+            cflags.append("-I%s" % self.header_map_path)
+
+        if self._Test("CLANG_WARN_CONSTANT_CONVERSION", "YES", default="NO"):
+            cflags.append("-Wconstant-conversion")
+
+        if self._Test("GCC_CHAR_IS_UNSIGNED_CHAR", "YES", default="NO"):
+            cflags.append("-funsigned-char")
+
+        if self._Test("GCC_CW_ASM_SYNTAX", "YES", default="YES"):
+            cflags.append("-fasm-blocks")
+
+        if "GCC_DYNAMIC_NO_PIC" in self._Settings():
+            if self._Settings()["GCC_DYNAMIC_NO_PIC"] == "YES":
+                cflags.append("-mdynamic-no-pic")
+        else:
+            pass
+            # TODO: In this case, it depends on the target. xcode passes
+            # mdynamic-no-pic by default for executable and possibly static lib
+            # according to mento
+
+        if self._Test("GCC_ENABLE_PASCAL_STRINGS", "YES", default="YES"):
+            cflags.append("-mpascal-strings")
+
+        self._Appendf(cflags, "GCC_OPTIMIZATION_LEVEL", "-O%s", default="s")
+
+        if self._Test("GCC_GENERATE_DEBUGGING_SYMBOLS", "YES", default="YES"):
+            dbg_format = self._Settings().get("DEBUG_INFORMATION_FORMAT", "dwarf")
+            if dbg_format == "dwarf":
+                cflags.append("-gdwarf-2")
+            elif dbg_format == "stabs":
+                raise NotImplementedError("stabs debug format is not supported yet.")
+            elif dbg_format == "dwarf-with-dsym":
+                cflags.append("-gdwarf-2")
+            else:
+                raise NotImplementedError("Unknown debug format %s" % dbg_format)
+
+        if self._Settings().get("GCC_STRICT_ALIASING") == "YES":
+            cflags.append("-fstrict-aliasing")
+        elif self._Settings().get("GCC_STRICT_ALIASING") == "NO":
+            cflags.append("-fno-strict-aliasing")
+
+        if self._Test("GCC_SYMBOLS_PRIVATE_EXTERN", "YES", default="NO"):
+            cflags.append("-fvisibility=hidden")
+
+        if self._Test("GCC_TREAT_WARNINGS_AS_ERRORS", "YES", default="NO"):
+            cflags.append("-Werror")
+
+        if self._Test("GCC_WARN_ABOUT_MISSING_NEWLINE", "YES", default="NO"):
+            cflags.append("-Wnewline-eof")
+
+        # In Xcode, this is only activated when GCC_COMPILER_VERSION is clang or
+        # llvm-gcc. It also requires a fairly recent libtool, and
+        # if the system clang isn't used, DYLD_LIBRARY_PATH needs to contain the
+        # path to the libLTO.dylib that matches the used clang.
+        if self._Test("LLVM_LTO", "YES", default="NO"):
+            cflags.append("-flto")
+
+        self._AppendPlatformVersionMinFlags(cflags)
+
+        # TODO:
+        if self._Test("COPY_PHASE_STRIP", "YES", default="NO"):
+            self._WarnUnimplemented("COPY_PHASE_STRIP")
+        self._WarnUnimplemented("GCC_DEBUGGING_SYMBOLS")
+        self._WarnUnimplemented("GCC_ENABLE_OBJC_EXCEPTIONS")
+
+        # TODO: This is exported correctly, but assigning to it is not supported.
+        self._WarnUnimplemented("MACH_O_TYPE")
+        self._WarnUnimplemented("PRODUCT_TYPE")
+
+        # If GYP_CROSSCOMPILE (--cross-compiling), disable architecture-specific
+        # additions and assume these will be provided as required via CC_host,
+        # CXX_host, CC_target and CXX_target.
+        if not gyp.common.CrossCompileRequested():
+            if arch is not None:
+                archs = [arch]
+            else:
+                assert self.configname
+                archs = self.GetActiveArchs(self.configname)
+            if len(archs) != 1:
+                # TODO: Supporting fat binaries will be annoying.
+                self._WarnUnimplemented("ARCHS")
+                archs = ["i386"]
+            cflags.append("-arch " + archs[0])
+
+            if archs[0] in ("i386", "x86_64"):
+                if self._Test("GCC_ENABLE_SSE3_EXTENSIONS", "YES", default="NO"):
+                    cflags.append("-msse3")
+                if self._Test(
+                    "GCC_ENABLE_SUPPLEMENTAL_SSE3_INSTRUCTIONS", "YES", default="NO"
+                ):
+                    cflags.append("-mssse3")  # Note 3rd 's'.
+                if self._Test("GCC_ENABLE_SSE41_EXTENSIONS", "YES", default="NO"):
+                    cflags.append("-msse4.1")
+                if self._Test("GCC_ENABLE_SSE42_EXTENSIONS", "YES", default="NO"):
+                    cflags.append("-msse4.2")
+
+        cflags += self._Settings().get("WARNING_CFLAGS", [])
+
+        if self._IsXCTest():
+            platform_root = self._XcodePlatformPath(configname)
+            if platform_root:
+                cflags.append("-F" + platform_root + "/Developer/Library/Frameworks/")
+
+        if sdk_root:
+            framework_root = sdk_root
+        else:
+            framework_root = ""
+        config = self.spec["configurations"][self.configname]
+        framework_dirs = config.get("mac_framework_dirs", [])
+        for directory in framework_dirs:
+            cflags.append("-F" + directory.replace("$(SDKROOT)", framework_root))
+
+        self.configname = None
+        return cflags
+
+    def GetCflagsC(self, configname):
+        """Returns flags that need to be added to .c, and .m compilations."""
+        self.configname = configname
+        cflags_c = []
+        if self._Settings().get("GCC_C_LANGUAGE_STANDARD", "") == "ansi":
+            cflags_c.append("-ansi")
+        else:
+            self._Appendf(cflags_c, "GCC_C_LANGUAGE_STANDARD", "-std=%s")
+        cflags_c += self._Settings().get("OTHER_CFLAGS", [])
+        self.configname = None
+        return cflags_c
+
+    def GetCflagsCC(self, configname):
+        """Returns flags that need to be added to .cc, and .mm compilations."""
+        self.configname = configname
+        cflags_cc = []
+
+        clang_cxx_language_standard = self._Settings().get(
+            "CLANG_CXX_LANGUAGE_STANDARD"
+        )
+        # Note: Don't make c++0x to c++11 so that c++0x can be used with older
+        # clangs that don't understand c++11 yet (like Xcode 4.2's).
+        if clang_cxx_language_standard:
+            cflags_cc.append("-std=%s" % clang_cxx_language_standard)
+
+        self._Appendf(cflags_cc, "CLANG_CXX_LIBRARY", "-stdlib=%s")
+
+        if self._Test("GCC_ENABLE_CPP_RTTI", "NO", default="YES"):
+            cflags_cc.append("-fno-rtti")
+        if self._Test("GCC_ENABLE_CPP_EXCEPTIONS", "NO", default="YES"):
+            cflags_cc.append("-fno-exceptions")
+        if self._Test("GCC_INLINES_ARE_PRIVATE_EXTERN", "YES", default="NO"):
+            cflags_cc.append("-fvisibility-inlines-hidden")
+        if self._Test("GCC_THREADSAFE_STATICS", "NO", default="YES"):
+            cflags_cc.append("-fno-threadsafe-statics")
+        # Note: This flag is a no-op for clang, it only has an effect for gcc.
+        if self._Test("GCC_WARN_ABOUT_INVALID_OFFSETOF_MACRO", "NO", default="YES"):
+            cflags_cc.append("-Wno-invalid-offsetof")
+
+        other_ccflags = []
+
+        for flag in self._Settings().get("OTHER_CPLUSPLUSFLAGS", ["$(inherited)"]):
+            # TODO: More general variable expansion. Missing in many other places too.
+            if flag in ("$inherited", "$(inherited)", "${inherited}"):
+                flag = "$OTHER_CFLAGS"
+            if flag in ("$OTHER_CFLAGS", "$(OTHER_CFLAGS)", "${OTHER_CFLAGS}"):
+                other_ccflags += self._Settings().get("OTHER_CFLAGS", [])
+            else:
+                other_ccflags.append(flag)
+        cflags_cc += other_ccflags
+
+        self.configname = None
+        return cflags_cc
+
+    def _AddObjectiveCGarbageCollectionFlags(self, flags):
+        gc_policy = self._Settings().get("GCC_ENABLE_OBJC_GC", "unsupported")
+        if gc_policy == "supported":
+            flags.append("-fobjc-gc")
+        elif gc_policy == "required":
+            flags.append("-fobjc-gc-only")
+
+    def _AddObjectiveCARCFlags(self, flags):
+        if self._Test("CLANG_ENABLE_OBJC_ARC", "YES", default="NO"):
+            flags.append("-fobjc-arc")
+
+    def _AddObjectiveCMissingPropertySynthesisFlags(self, flags):
+        if self._Test(
+            "CLANG_WARN_OBJC_MISSING_PROPERTY_SYNTHESIS", "YES", default="NO"
+        ):
+            flags.append("-Wobjc-missing-property-synthesis")
+
+    def GetCflagsObjC(self, configname):
+        """Returns flags that need to be added to .m compilations."""
+        self.configname = configname
+        cflags_objc = []
+        self._AddObjectiveCGarbageCollectionFlags(cflags_objc)
+        self._AddObjectiveCARCFlags(cflags_objc)
+        self._AddObjectiveCMissingPropertySynthesisFlags(cflags_objc)
+        self.configname = None
+        return cflags_objc
+
+    def GetCflagsObjCC(self, configname):
+        """Returns flags that need to be added to .mm compilations."""
+        self.configname = configname
+        cflags_objcc = []
+        self._AddObjectiveCGarbageCollectionFlags(cflags_objcc)
+        self._AddObjectiveCARCFlags(cflags_objcc)
+        self._AddObjectiveCMissingPropertySynthesisFlags(cflags_objcc)
+        if self._Test("GCC_OBJC_CALL_CXX_CDTORS", "YES", default="NO"):
+            cflags_objcc.append("-fobjc-call-cxx-cdtors")
+        self.configname = None
+        return cflags_objcc
+
+    def GetInstallNameBase(self):
+        """Return DYLIB_INSTALL_NAME_BASE for this target."""
+        # Xcode sets this for shared_libraries, and for nonbundled loadable_modules.
+        if self.spec["type"] != "shared_library" and (
+            self.spec["type"] != "loadable_module" or self._IsBundle()
+        ):
+            return None
+        install_base = self.GetPerTargetSetting(
+            "DYLIB_INSTALL_NAME_BASE",
+            default="/Library/Frameworks" if self._IsBundle() else "/usr/local/lib",
+        )
+        return install_base
+
+    def _StandardizePath(self, path):
+        """Do :standardizepath processing for path."""
+        # I'm not quite sure what :standardizepath does. Just call normpath(),
+        # but don't let @executable_path/../foo collapse to foo.
+        if "/" in path:
+            prefix, rest = "", path
+            if path.startswith("@"):
+                prefix, rest = path.split("/", 1)
+            rest = os.path.normpath(rest)  # :standardizepath
+            path = os.path.join(prefix, rest)
+        return path
+
+    def GetInstallName(self):
+        """Return LD_DYLIB_INSTALL_NAME for this target."""
+        # Xcode sets this for shared_libraries, and for nonbundled loadable_modules.
+        if self.spec["type"] != "shared_library" and (
+            self.spec["type"] != "loadable_module" or self._IsBundle()
+        ):
+            return None
+
+        default_install_name = (
+            "$(DYLIB_INSTALL_NAME_BASE:standardizepath)/$(EXECUTABLE_PATH)"
+        )
+        install_name = self.GetPerTargetSetting(
+            "LD_DYLIB_INSTALL_NAME", default=default_install_name
+        )
+
+        # Hardcode support for the variables used in chromium for now, to
+        # unblock people using the make build.
+        if "$" in install_name:
+            assert install_name in (
+                "$(DYLIB_INSTALL_NAME_BASE:standardizepath)/"
+                "$(WRAPPER_NAME)/$(PRODUCT_NAME)",
+                default_install_name,
+            ), (
+                "Variables in LD_DYLIB_INSTALL_NAME are not generally supported "
+                "yet in target '%s' (got '%s')"
+                % (self.spec["target_name"], install_name)
+            )
+
+            install_name = install_name.replace(
+                "$(DYLIB_INSTALL_NAME_BASE:standardizepath)",
+                self._StandardizePath(self.GetInstallNameBase()),
+            )
+            if self._IsBundle():
+                # These are only valid for bundles, hence the |if|.
+                install_name = install_name.replace(
+                    "$(WRAPPER_NAME)", self.GetWrapperName()
+                )
+                install_name = install_name.replace(
+                    "$(PRODUCT_NAME)", self.GetProductName()
+                )
+            else:
+                assert "$(WRAPPER_NAME)" not in install_name
+                assert "$(PRODUCT_NAME)" not in install_name
+
+            install_name = install_name.replace(
+                "$(EXECUTABLE_PATH)", self.GetExecutablePath()
+            )
+        return install_name
+
+    def _MapLinkerFlagFilename(self, ldflag, gyp_to_build_path):
+        """Checks if ldflag contains a filename and if so remaps it from
+    gyp-directory-relative to build-directory-relative."""
+        # This list is expanded on demand.
+        # They get matched as:
+        #   -exported_symbols_list file
+        #   -Wl,exported_symbols_list file
+        #   -Wl,exported_symbols_list,file
+        LINKER_FILE = r"(\S+)"
+        WORD = r"\S+"
+        linker_flags = [
+            ["-exported_symbols_list", LINKER_FILE],  # Needed for NaCl.
+            ["-unexported_symbols_list", LINKER_FILE],
+            ["-reexported_symbols_list", LINKER_FILE],
+            ["-sectcreate", WORD, WORD, LINKER_FILE],  # Needed for remoting.
+        ]
+        for flag_pattern in linker_flags:
+            regex = re.compile("(?:-Wl,)?" + "[ ,]".join(flag_pattern))
+            m = regex.match(ldflag)
+            if m:
+                ldflag = (
+                    ldflag[: m.start(1)]
+                    + gyp_to_build_path(m.group(1))
+                    + ldflag[m.end(1) :]
+                )
+        # Required for ffmpeg (no idea why they don't use LIBRARY_SEARCH_PATHS,
+        # TODO(thakis): Update ffmpeg.gyp):
+        if ldflag.startswith("-L"):
+            ldflag = "-L" + gyp_to_build_path(ldflag[len("-L") :])
+        return ldflag
+
+    def GetLdflags(self, configname, product_dir, gyp_to_build_path, arch=None):
+        """Returns flags that need to be passed to the linker.
+
+    Args:
+        configname: The name of the configuration to get ld flags for.
+        product_dir: The directory where products such static and dynamic
+            libraries are placed. This is added to the library search path.
+        gyp_to_build_path: A function that converts paths relative to the
+            current gyp file to paths relative to the build directory.
+    """
+        self.configname = configname
+        ldflags = []
+
+        # The xcode build is relative to a gyp file's directory, and OTHER_LDFLAGS
+        # can contain entries that depend on this. Explicitly absolutify these.
+        for ldflag in self._Settings().get("OTHER_LDFLAGS", []):
+            ldflags.append(self._MapLinkerFlagFilename(ldflag, gyp_to_build_path))
+
+        if self._Test("DEAD_CODE_STRIPPING", "YES", default="NO"):
+            ldflags.append("-Wl,-dead_strip")
+
+        if self._Test("PREBINDING", "YES", default="NO"):
+            ldflags.append("-Wl,-prebind")
+
+        self._Appendf(
+            ldflags, "DYLIB_COMPATIBILITY_VERSION", "-compatibility_version %s"
+        )
+        self._Appendf(ldflags, "DYLIB_CURRENT_VERSION", "-current_version %s")
+
+        self._AppendPlatformVersionMinFlags(ldflags)
+
+        if "SDKROOT" in self._Settings() and self._SdkPath():
+            ldflags.append("-isysroot " + self._SdkPath())
+
+        for library_path in self._Settings().get("LIBRARY_SEARCH_PATHS", []):
+            ldflags.append("-L" + gyp_to_build_path(library_path))
+
+        if "ORDER_FILE" in self._Settings():
+            ldflags.append(
+                "-Wl,-order_file "
+                + "-Wl,"
+                + gyp_to_build_path(self._Settings()["ORDER_FILE"])
+            )
+
+        if not gyp.common.CrossCompileRequested():
+            if arch is not None:
+                archs = [arch]
+            else:
+                assert self.configname
+                archs = self.GetActiveArchs(self.configname)
+            if len(archs) != 1:
+                # TODO: Supporting fat binaries will be annoying.
+                self._WarnUnimplemented("ARCHS")
+                archs = ["i386"]
+            ldflags.append("-arch " + archs[0])
+
+        # Xcode adds the product directory by default.
+        # Rewrite -L. to -L./ to work around http://www.openradar.me/25313838
+        ldflags.append("-L" + (product_dir if product_dir != "." else "./"))
+
+        install_name = self.GetInstallName()
+        if install_name and self.spec["type"] != "loadable_module":
+            ldflags.append("-install_name " + install_name.replace(" ", r"\ "))
+
+        for rpath in self._Settings().get("LD_RUNPATH_SEARCH_PATHS", []):
+            ldflags.append("-Wl,-rpath," + rpath)
+
+        sdk_root = self._SdkPath()
+        if not sdk_root:
+            sdk_root = ""
+        config = self.spec["configurations"][self.configname]
+        framework_dirs = config.get("mac_framework_dirs", [])
+        for directory in framework_dirs:
+            ldflags.append("-F" + directory.replace("$(SDKROOT)", sdk_root))
+
+        if self._IsXCTest():
+            platform_root = self._XcodePlatformPath(configname)
+            if sdk_root and platform_root:
+                ldflags.append("-F" + platform_root + "/Developer/Library/Frameworks/")
+                ldflags.append("-framework XCTest")
+
+        is_extension = self._IsIosAppExtension() or self._IsIosWatchKitExtension()
+        if sdk_root and is_extension:
+            # Adds the link flags for extensions. These flags are common for all
+            # extensions and provide loader and main function.
+            # These flags reflect the compilation options used by xcode to compile
+            # extensions.
+            xcode_version, _ = XcodeVersion()
+            if xcode_version < "0900":
+                ldflags.append("-lpkstart")
+                ldflags.append(
+                    sdk_root
+                    + "/System/Library/PrivateFrameworks/PlugInKit.framework/PlugInKit"
+                )
+            else:
+                ldflags.append("-e _NSExtensionMain")
+            ldflags.append("-fapplication-extension")
+
+        self._Appendf(ldflags, "CLANG_CXX_LIBRARY", "-stdlib=%s")
+
+        self.configname = None
+        return ldflags
+
+    def GetLibtoolflags(self, configname):
+        """Returns flags that need to be passed to the static linker.
+
+    Args:
+        configname: The name of the configuration to get ld flags for.
+    """
+        self.configname = configname
+        libtoolflags = []
+
+        for libtoolflag in self._Settings().get("OTHER_LDFLAGS", []):
+            libtoolflags.append(libtoolflag)
+        # TODO(thakis): ARCHS?
+
+        self.configname = None
+        return libtoolflags
+
+    def GetPerTargetSettings(self):
+        """Gets a list of all the per-target settings. This will only fetch keys
+    whose values are the same across all configurations."""
+        first_pass = True
+        result = {}
+        for configname in sorted(self.xcode_settings.keys()):
+            if first_pass:
+                result = dict(self.xcode_settings[configname])
+                first_pass = False
+            else:
+                for key, value in self.xcode_settings[configname].items():
+                    if key not in result:
+                        continue
+                    elif result[key] != value:
+                        del result[key]
+        return result
+
+    def GetPerConfigSetting(self, setting, configname, default=None):
+        if configname in self.xcode_settings:
+            return self.xcode_settings[configname].get(setting, default)
+        else:
+            return self.GetPerTargetSetting(setting, default)
+
+    def GetPerTargetSetting(self, setting, default=None):
+        """Tries to get xcode_settings.setting from spec. Assumes that the setting
+       has the same value in all configurations and throws otherwise."""
+        is_first_pass = True
+        result = None
+        for configname in sorted(self.xcode_settings.keys()):
+            if is_first_pass:
+                result = self.xcode_settings[configname].get(setting, None)
+                is_first_pass = False
+            else:
+                assert result == self.xcode_settings[configname].get(setting, None), (
+                    "Expected per-target setting for '%s', got per-config setting "
+                    "(target %s)" % (setting, self.spec["target_name"])
+                )
+        if result is None:
+            return default
+        return result
+
+    def _GetStripPostbuilds(self, configname, output_binary, quiet):
+        """Returns a list of shell commands that contain the shell commands
+    necessary to strip this target's binary. These should be run as postbuilds
+    before the actual postbuilds run."""
+        self.configname = configname
+
+        result = []
+        if self._Test("DEPLOYMENT_POSTPROCESSING", "YES", default="NO") and self._Test(
+            "STRIP_INSTALLED_PRODUCT", "YES", default="NO"
+        ):
+
+            default_strip_style = "debugging"
+            if (
+                self.spec["type"] == "loadable_module" or self._IsIosAppExtension()
+            ) and self._IsBundle():
+                default_strip_style = "non-global"
+            elif self.spec["type"] == "executable":
+                default_strip_style = "all"
+
+            strip_style = self._Settings().get("STRIP_STYLE", default_strip_style)
+            strip_flags = {"all": "", "non-global": "-x", "debugging": "-S"}[
+                strip_style
+            ]
+
+            explicit_strip_flags = self._Settings().get("STRIPFLAGS", "")
+            if explicit_strip_flags:
+                strip_flags += " " + _NormalizeEnvVarReferences(explicit_strip_flags)
+
+            if not quiet:
+                result.append("echo STRIP\\(%s\\)" % self.spec["target_name"])
+            result.append(f"strip {strip_flags} {output_binary}")
+
+        self.configname = None
+        return result
+
+    def _GetDebugInfoPostbuilds(self, configname, output, output_binary, quiet):
+        """Returns a list of shell commands that contain the shell commands
+    necessary to massage this target's debug information. These should be run
+    as postbuilds before the actual postbuilds run."""
+        self.configname = configname
+
+        # For static libraries, no dSYMs are created.
+        result = []
+        if (
+            self._Test("GCC_GENERATE_DEBUGGING_SYMBOLS", "YES", default="YES")
+            and self._Test(
+                "DEBUG_INFORMATION_FORMAT", "dwarf-with-dsym", default="dwarf"
+            )
+            and self.spec["type"] != "static_library"
+        ):
+            if not quiet:
+                result.append("echo DSYMUTIL\\(%s\\)" % self.spec["target_name"])
+            result.append("dsymutil {} -o {}".format(output_binary, output + ".dSYM"))
+
+        self.configname = None
+        return result
+
+    def _GetTargetPostbuilds(self, configname, output, output_binary, quiet=False):
+        """Returns a list of shell commands that contain the shell commands
+    to run as postbuilds for this target, before the actual postbuilds."""
+        # dSYMs need to build before stripping happens.
+        return self._GetDebugInfoPostbuilds(
+            configname, output, output_binary, quiet
+        ) + self._GetStripPostbuilds(configname, output_binary, quiet)
+
+    def _GetIOSPostbuilds(self, configname, output_binary):
+        """Return a shell command to codesign the iOS output binary so it can
+    be deployed to a device.  This should be run as the very last step of the
+    build."""
+        if not (
+            self.isIOS
+            and (self.spec["type"] == "executable" or self._IsXCTest())
+            or self.IsIosFramework()
+        ):
+            return []
+
+        postbuilds = []
+        product_name = self.GetFullProductName()
+        settings = self.xcode_settings[configname]
+
+        # Xcode expects XCTests to be copied into the TEST_HOST dir.
+        if self._IsXCTest():
+            source = os.path.join("${BUILT_PRODUCTS_DIR}", product_name)
+            test_host = os.path.dirname(settings.get("TEST_HOST"))
+            xctest_destination = os.path.join(test_host, "PlugIns", product_name)
+            postbuilds.extend([f"ditto {source} {xctest_destination}"])
+
+        key = self._GetIOSCodeSignIdentityKey(settings)
+        if not key:
+            return postbuilds
+
+        # Warn for any unimplemented signing xcode keys.
+        unimpl = ["OTHER_CODE_SIGN_FLAGS"]
+        unimpl = set(unimpl) & set(self.xcode_settings[configname].keys())
+        if unimpl:
+            print(
+                "Warning: Some codesign keys not implemented, ignoring: %s"
+                % ", ".join(sorted(unimpl))
+            )
+
+        if self._IsXCTest():
+            # For device xctests, Xcode copies two extra frameworks into $TEST_HOST.
+            test_host = os.path.dirname(settings.get("TEST_HOST"))
+            frameworks_dir = os.path.join(test_host, "Frameworks")
+            platform_root = self._XcodePlatformPath(configname)
+            frameworks = [
+                "Developer/Library/PrivateFrameworks/IDEBundleInjection.framework",
+                "Developer/Library/Frameworks/XCTest.framework",
+            ]
+            for framework in frameworks:
+                source = os.path.join(platform_root, framework)
+                destination = os.path.join(frameworks_dir, os.path.basename(framework))
+                postbuilds.extend([f"ditto {source} {destination}"])
+
+                # Then re-sign everything with 'preserve=True'
+                postbuilds.extend(
+                    [
+                        '%s code-sign-bundle "%s" "%s" "%s" "%s" %s'
+                        % (
+                            os.path.join("${TARGET_BUILD_DIR}", "gyp-mac-tool"),
+                            key,
+                            settings.get("CODE_SIGN_ENTITLEMENTS", ""),
+                            settings.get("PROVISIONING_PROFILE", ""),
+                            destination,
+                            True,
+                        )
+                    ]
+                )
+            plugin_dir = os.path.join(test_host, "PlugIns")
+            targets = [os.path.join(plugin_dir, product_name), test_host]
+            for target in targets:
+                postbuilds.extend(
+                    [
+                        '%s code-sign-bundle "%s" "%s" "%s" "%s" %s'
+                        % (
+                            os.path.join("${TARGET_BUILD_DIR}", "gyp-mac-tool"),
+                            key,
+                            settings.get("CODE_SIGN_ENTITLEMENTS", ""),
+                            settings.get("PROVISIONING_PROFILE", ""),
+                            target,
+                            True,
+                        )
+                    ]
+                )
+
+        postbuilds.extend(
+            [
+                '%s code-sign-bundle "%s" "%s" "%s" "%s" %s'
+                % (
+                    os.path.join("${TARGET_BUILD_DIR}", "gyp-mac-tool"),
+                    key,
+                    settings.get("CODE_SIGN_ENTITLEMENTS", ""),
+                    settings.get("PROVISIONING_PROFILE", ""),
+                    os.path.join("${BUILT_PRODUCTS_DIR}", product_name),
+                    False,
+                )
+            ]
+        )
+        return postbuilds
+
+    def _GetIOSCodeSignIdentityKey(self, settings):
+        identity = settings.get("CODE_SIGN_IDENTITY")
+        if not identity:
+            return None
+        if identity not in XcodeSettings._codesigning_key_cache:
+            output = subprocess.check_output(
+                ["security", "find-identity", "-p", "codesigning", "-v"]
+            )
+            for line in output.splitlines():
+                if identity in line:
+                    fingerprint = line.split()[1]
+                    cache = XcodeSettings._codesigning_key_cache
+                    assert identity not in cache or fingerprint == cache[identity], (
+                        "Multiple codesigning fingerprints for identity: %s" % identity
+                    )
+                    XcodeSettings._codesigning_key_cache[identity] = fingerprint
+        return XcodeSettings._codesigning_key_cache.get(identity, "")
+
+    def AddImplicitPostbuilds(
+        self, configname, output, output_binary, postbuilds=[], quiet=False
+    ):
+        """Returns a list of shell commands that should run before and after
+    |postbuilds|."""
+        assert output_binary is not None
+        pre = self._GetTargetPostbuilds(configname, output, output_binary, quiet)
+        post = self._GetIOSPostbuilds(configname, output_binary)
+        return pre + postbuilds + post
+
+    def _AdjustLibrary(self, library, config_name=None):
+        if library.endswith(".framework"):
+            l_flag = "-framework " + os.path.splitext(os.path.basename(library))[0]
+        else:
+            m = self.library_re.match(library)
+            if m:
+                l_flag = "-l" + m.group(1)
+            else:
+                l_flag = library
+
+        sdk_root = self._SdkPath(config_name)
+        if not sdk_root:
+            sdk_root = ""
+        # Xcode 7 started shipping with ".tbd" (text based stubs) files instead of
+        # ".dylib" without providing a real support for them. What it does, for
+        # "/usr/lib" libraries, is do "-L/usr/lib -lname" which is dependent on the
+        # library order and cause collision when building Chrome.
+        #
+        # Instead substitute ".tbd" to ".dylib" in the generated project when the
+        # following conditions are both true:
+        # - library is referenced in the gyp file as "$(SDKROOT)/**/*.dylib",
+        # - the ".dylib" file does not exists but a ".tbd" file do.
+        library = l_flag.replace("$(SDKROOT)", sdk_root)
+        if l_flag.startswith("$(SDKROOT)"):
+            basename, ext = os.path.splitext(library)
+            if ext == ".dylib" and not os.path.exists(library):
+                tbd_library = basename + ".tbd"
+                if os.path.exists(tbd_library):
+                    library = tbd_library
+        return library
+
+    def AdjustLibraries(self, libraries, config_name=None):
+        """Transforms entries like 'Cocoa.framework' in libraries into entries like
+    '-framework Cocoa', 'libcrypto.dylib' into '-lcrypto', etc.
+    """
+        libraries = [self._AdjustLibrary(library, config_name) for library in libraries]
+        return libraries
+
+    def _BuildMachineOSBuild(self):
+        return GetStdout(["sw_vers", "-buildVersion"])
+
+    def _XcodeIOSDeviceFamily(self, configname):
+        family = self.xcode_settings[configname].get("TARGETED_DEVICE_FAMILY", "1")
+        return [int(x) for x in family.split(",")]
+
+    def GetExtraPlistItems(self, configname=None):
+        """Returns a dictionary with extra items to insert into Info.plist."""
+        if configname not in XcodeSettings._plist_cache:
+            cache = {}
+            cache["BuildMachineOSBuild"] = self._BuildMachineOSBuild()
+
+            xcode_version, xcode_build = XcodeVersion()
+            cache["DTXcode"] = xcode_version
+            cache["DTXcodeBuild"] = xcode_build
+            compiler = self.xcode_settings[configname].get("GCC_VERSION")
+            if compiler is not None:
+                cache["DTCompiler"] = compiler
+
+            sdk_root = self._SdkRoot(configname)
+            if not sdk_root:
+                sdk_root = self._DefaultSdkRoot()
+            sdk_version = self._GetSdkVersionInfoItem(sdk_root, "--show-sdk-version")
+            cache["DTSDKName"] = sdk_root + (sdk_version or "")
+            if xcode_version >= "0720":
+                cache["DTSDKBuild"] = self._GetSdkVersionInfoItem(
+                    sdk_root, "--show-sdk-build-version"
+                )
+            elif xcode_version >= "0430":
+                cache["DTSDKBuild"] = sdk_version
+            else:
+                cache["DTSDKBuild"] = cache["BuildMachineOSBuild"]
+
+            if self.isIOS:
+                cache["MinimumOSVersion"] = self.xcode_settings[configname].get(
+                    "IPHONEOS_DEPLOYMENT_TARGET"
+                )
+                cache["DTPlatformName"] = sdk_root
+                cache["DTPlatformVersion"] = sdk_version
+
+                if configname.endswith("iphoneos"):
+                    cache["CFBundleSupportedPlatforms"] = ["iPhoneOS"]
+                    cache["DTPlatformBuild"] = cache["DTSDKBuild"]
+                else:
+                    cache["CFBundleSupportedPlatforms"] = ["iPhoneSimulator"]
+                    # This is weird, but Xcode sets DTPlatformBuild to an empty field
+                    # for simulator builds.
+                    cache["DTPlatformBuild"] = ""
+            XcodeSettings._plist_cache[configname] = cache
+
+        # Include extra plist items that are per-target, not per global
+        # XcodeSettings.
+        items = dict(XcodeSettings._plist_cache[configname])
+        if self.isIOS:
+            items["UIDeviceFamily"] = self._XcodeIOSDeviceFamily(configname)
+        return items
+
+    def _DefaultSdkRoot(self):
+        """Returns the default SDKROOT to use.
+
+    Prior to version 5.0.0, if SDKROOT was not explicitly set in the Xcode
+    project, then the environment variable was empty. Starting with this
+    version, Xcode uses the name of the newest SDK installed.
+    """
+        xcode_version, _ = XcodeVersion()
+        if xcode_version < "0500":
+            return ""
+        default_sdk_path = self._XcodeSdkPath("")
+        default_sdk_root = XcodeSettings._sdk_root_cache.get(default_sdk_path)
+        if default_sdk_root:
+            return default_sdk_root
+        try:
+            all_sdks = GetStdout(["xcodebuild", "-showsdks"])
+        except GypError:
+            # If xcodebuild fails, there will be no valid SDKs
+            return ""
+        for line in all_sdks.splitlines():
+            items = line.split()
+            if len(items) >= 3 and items[-2] == "-sdk":
+                sdk_root = items[-1]
+                sdk_path = self._XcodeSdkPath(sdk_root)
+                if sdk_path == default_sdk_path:
+                    return sdk_root
+        return ""
+
+
+class MacPrefixHeader:
+    """A class that helps with emulating Xcode's GCC_PREFIX_HEADER feature.
+
+  This feature consists of several pieces:
+  * If GCC_PREFIX_HEADER is present, all compilations in that project get an
+    additional |-include path_to_prefix_header| cflag.
+  * If GCC_PRECOMPILE_PREFIX_HEADER is present too, then the prefix header is
+    instead compiled, and all other compilations in the project get an
+    additional |-include path_to_compiled_header| instead.
+    + Compiled prefix headers have the extension gch. There is one gch file for
+      every language used in the project (c, cc, m, mm), since gch files for
+      different languages aren't compatible.
+    + gch files themselves are built with the target's normal cflags, but they
+      obviously don't get the |-include| flag. Instead, they need a -x flag that
+      describes their language.
+    + All o files in the target need to depend on the gch file, to make sure
+      it's built before any o file is built.
+
+  This class helps with some of these tasks, but it needs help from the build
+  system for writing dependencies to the gch files, for writing build commands
+  for the gch files, and for figuring out the location of the gch files.
+  """
+
+    def __init__(
+        self, xcode_settings, gyp_path_to_build_path, gyp_path_to_build_output
+    ):
+        """If xcode_settings is None, all methods on this class are no-ops.
+
+    Args:
+        gyp_path_to_build_path: A function that takes a gyp-relative path,
+            and returns a path relative to the build directory.
+        gyp_path_to_build_output: A function that takes a gyp-relative path and
+            a language code ('c', 'cc', 'm', or 'mm'), and that returns a path
+            to where the output of precompiling that path for that language
+            should be placed (without the trailing '.gch').
+    """
+        # This doesn't support per-configuration prefix headers. Good enough
+        # for now.
+        self.header = None
+        self.compile_headers = False
+        if xcode_settings:
+            self.header = xcode_settings.GetPerTargetSetting("GCC_PREFIX_HEADER")
+            self.compile_headers = (
+                xcode_settings.GetPerTargetSetting(
+                    "GCC_PRECOMPILE_PREFIX_HEADER", default="NO"
+                )
+                != "NO"
+            )
+        self.compiled_headers = {}
+        if self.header:
+            if self.compile_headers:
+                for lang in ["c", "cc", "m", "mm"]:
+                    self.compiled_headers[lang] = gyp_path_to_build_output(
+                        self.header, lang
+                    )
+            self.header = gyp_path_to_build_path(self.header)
+
+    def _CompiledHeader(self, lang, arch):
+        assert self.compile_headers
+        h = self.compiled_headers[lang]
+        if arch:
+            h += "." + arch
+        return h
+
+    def GetInclude(self, lang, arch=None):
+        """Gets the cflags to include the prefix header for language |lang|."""
+        if self.compile_headers and lang in self.compiled_headers:
+            return "-include %s" % self._CompiledHeader(lang, arch)
+        elif self.header:
+            return "-include %s" % self.header
+        else:
+            return ""
+
+    def _Gch(self, lang, arch):
+        """Returns the actual file name of the prefix header for language |lang|."""
+        assert self.compile_headers
+        return self._CompiledHeader(lang, arch) + ".gch"
+
+    def GetObjDependencies(self, sources, objs, arch=None):
+        """Given a list of source files and the corresponding object files, returns
+    a list of (source, object, gch) tuples, where |gch| is the build-directory
+    relative path to the gch file each object file depends on.  |compilable[i]|
+    has to be the source file belonging to |objs[i]|."""
+        if not self.header or not self.compile_headers:
+            return []
+
+        result = []
+        for source, obj in zip(sources, objs):
+            ext = os.path.splitext(source)[1]
+            lang = {
+                ".c": "c",
+                ".cpp": "cc",
+                ".cc": "cc",
+                ".cxx": "cc",
+                ".m": "m",
+                ".mm": "mm",
+            }.get(ext, None)
+            if lang:
+                result.append((source, obj, self._Gch(lang, arch)))
+        return result
+
+    def GetPchBuildCommands(self, arch=None):
+        """Returns [(path_to_gch, language_flag, language, header)].
+    |path_to_gch| and |header| are relative to the build directory.
+    """
+        if not self.header or not self.compile_headers:
+            return []
+        return [
+            (self._Gch("c", arch), "-x c-header", "c", self.header),
+            (self._Gch("cc", arch), "-x c++-header", "cc", self.header),
+            (self._Gch("m", arch), "-x objective-c-header", "m", self.header),
+            (self._Gch("mm", arch), "-x objective-c++-header", "mm", self.header),
+        ]
+
+
+def XcodeVersion():
+    """Returns a tuple of version and build version of installed Xcode."""
+    # `xcodebuild -version` output looks like
+    #    Xcode 4.6.3
+    #    Build version 4H1503
+    # or like
+    #    Xcode 3.2.6
+    #    Component versions: DevToolsCore-1809.0; DevToolsSupport-1806.0
+    #    BuildVersion: 10M2518
+    # Convert that to ('0463', '4H1503') or ('0326', '10M2518').
+    global XCODE_VERSION_CACHE
+    if XCODE_VERSION_CACHE:
+        return XCODE_VERSION_CACHE
+    version = ""
+    build = ""
+    try:
+        version_list = GetStdoutQuiet(["xcodebuild", "-version"]).splitlines()
+        # In some circumstances xcodebuild exits 0 but doesn't return
+        # the right results; for example, a user on 10.7 or 10.8 with
+        # a bogus path set via xcode-select
+        # In that case this may be a CLT-only install so fall back to
+        # checking that version.
+        if len(version_list) < 2:
+            raise GypError("xcodebuild returned unexpected results")
+        version = version_list[0].split()[-1]  # Last word on first line
+        build = version_list[-1].split()[-1]  # Last word on last line
+    except GypError:  # Xcode not installed so look for XCode Command Line Tools
+        version = CLTVersion()  # macOS Catalina returns 11.0.0.0.1.1567737322
+        if not version:
+            raise GypError("No Xcode or CLT version detected!")
+    # Be careful to convert "4.2.3" to "0423" and "11.0.0" to "1100":
+    version = version.split(".")[:3]  # Just major, minor, micro
+    version[0] = version[0].zfill(2)  # Add a leading zero if major is one digit
+    version = ("".join(version) + "00")[:4]  # Limit to exactly four characters
+    XCODE_VERSION_CACHE = (version, build)
+    return XCODE_VERSION_CACHE
+
+
+# This function ported from the logic in Homebrew's CLT version check
+def CLTVersion():
+    """Returns the version of command-line tools from pkgutil."""
+    # pkgutil output looks like
+    #   package-id: com.apple.pkg.CLTools_Executables
+    #   version: 5.0.1.0.1.1382131676
+    #   volume: /
+    #   location: /
+    #   install-time: 1382544035
+    #   groups: com.apple.FindSystemFiles.pkg-group
+    #           com.apple.DevToolsBoth.pkg-group
+    #           com.apple.DevToolsNonRelocatableShared.pkg-group
+    STANDALONE_PKG_ID = "com.apple.pkg.DeveloperToolsCLILeo"
+    FROM_XCODE_PKG_ID = "com.apple.pkg.DeveloperToolsCLI"
+    MAVERICKS_PKG_ID = "com.apple.pkg.CLTools_Executables"
+
+    regex = re.compile("version: (?P<version>.+)")
+    for key in [MAVERICKS_PKG_ID, STANDALONE_PKG_ID, FROM_XCODE_PKG_ID]:
+        try:
+            output = GetStdout(["/usr/sbin/pkgutil", "--pkg-info", key])
+            return re.search(regex, output).groupdict()["version"]
+        except GypError:
+            continue
+
+    regex = re.compile(r'Command Line Tools for Xcode\s+(?P<version>\S+)')
+    try:
+        output = GetStdout(["/usr/sbin/softwareupdate", "--history"])
+        return re.search(regex, output).groupdict()["version"]
+    except GypError:
+        return None
+
+
+def GetStdoutQuiet(cmdlist):
+    """Returns the content of standard output returned by invoking |cmdlist|.
+  Ignores the stderr.
+  Raises |GypError| if the command return with a non-zero return code."""
+    job = subprocess.Popen(cmdlist, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    out = job.communicate()[0].decode("utf-8")
+    if job.returncode != 0:
+        raise GypError("Error %d running %s" % (job.returncode, cmdlist[0]))
+    return out.rstrip("\n")
+
+
+def GetStdout(cmdlist):
+    """Returns the content of standard output returned by invoking |cmdlist|.
+  Raises |GypError| if the command return with a non-zero return code."""
+    job = subprocess.Popen(cmdlist, stdout=subprocess.PIPE)
+    out = job.communicate()[0].decode("utf-8")
+    if job.returncode != 0:
+        sys.stderr.write(out + "\n")
+        raise GypError("Error %d running %s" % (job.returncode, cmdlist[0]))
+    return out.rstrip("\n")
+
+
+def MergeGlobalXcodeSettingsToSpec(global_dict, spec):
+    """Merges the global xcode_settings dictionary into each configuration of the
+  target represented by spec. For keys that are both in the global and the local
+  xcode_settings dict, the local key gets precedence.
+  """
+    # The xcode generator special-cases global xcode_settings and does something
+    # that amounts to merging in the global xcode_settings into each local
+    # xcode_settings dict.
+    global_xcode_settings = global_dict.get("xcode_settings", {})
+    for config in spec["configurations"].values():
+        if "xcode_settings" in config:
+            new_settings = global_xcode_settings.copy()
+            new_settings.update(config["xcode_settings"])
+            config["xcode_settings"] = new_settings
+
+
+def IsMacBundle(flavor, spec):
+    """Returns if |spec| should be treated as a bundle.
+
+  Bundles are directories with a certain subdirectory structure, instead of
+  just a single file. Bundle rules do not produce a binary but also package
+  resources into that directory."""
+    is_mac_bundle = (
+        int(spec.get("mac_xctest_bundle", 0)) != 0
+        or int(spec.get("mac_xcuitest_bundle", 0)) != 0
+        or (int(spec.get("mac_bundle", 0)) != 0 and flavor == "mac")
+    )
+
+    if is_mac_bundle:
+        assert spec["type"] != "none", (
+            'mac_bundle targets cannot have type none (target "%s")'
+            % spec["target_name"]
+        )
+    return is_mac_bundle
+
+
+def GetMacBundleResources(product_dir, xcode_settings, resources):
+    """Yields (output, resource) pairs for every resource in |resources|.
+  Only call this for mac bundle targets.
+
+  Args:
+      product_dir: Path to the directory containing the output bundle,
+          relative to the build directory.
+      xcode_settings: The XcodeSettings of the current target.
+      resources: A list of bundle resources, relative to the build directory.
+  """
+    dest = os.path.join(product_dir, xcode_settings.GetBundleResourceFolder())
+    for res in resources:
+        output = dest
+
+        # The make generator doesn't support it, so forbid it everywhere
+        # to keep the generators more interchangeable.
+        assert " " not in res, "Spaces in resource filenames not supported (%s)" % res
+
+        # Split into (path,file).
+        res_parts = os.path.split(res)
+
+        # Now split the path into (prefix,maybe.lproj).
+        lproj_parts = os.path.split(res_parts[0])
+        # If the resource lives in a .lproj bundle, add that to the destination.
+        if lproj_parts[1].endswith(".lproj"):
+            output = os.path.join(output, lproj_parts[1])
+
+        output = os.path.join(output, res_parts[1])
+        # Compiled XIB files are referred to by .nib.
+        if output.endswith(".xib"):
+            output = os.path.splitext(output)[0] + ".nib"
+        # Compiled storyboard files are referred to by .storyboardc.
+        if output.endswith(".storyboard"):
+            output = os.path.splitext(output)[0] + ".storyboardc"
+
+        yield output, res
+
+
+def GetMacInfoPlist(product_dir, xcode_settings, gyp_path_to_build_path):
+    """Returns (info_plist, dest_plist, defines, extra_env), where:
+  * |info_plist| is the source plist path, relative to the
+    build directory,
+  * |dest_plist| is the destination plist path, relative to the
+    build directory,
+  * |defines| is a list of preprocessor defines (empty if the plist
+    shouldn't be preprocessed,
+  * |extra_env| is a dict of env variables that should be exported when
+    invoking |mac_tool copy-info-plist|.
+
+  Only call this for mac bundle targets.
+
+  Args:
+      product_dir: Path to the directory containing the output bundle,
+          relative to the build directory.
+      xcode_settings: The XcodeSettings of the current target.
+      gyp_to_build_path: A function that converts paths relative to the
+          current gyp file to paths relative to the build directory.
+  """
+    info_plist = xcode_settings.GetPerTargetSetting("INFOPLIST_FILE")
+    if not info_plist:
+        return None, None, [], {}
+
+    # The make generator doesn't support it, so forbid it everywhere
+    # to keep the generators more interchangeable.
+    assert " " not in info_plist, (
+        "Spaces in Info.plist filenames not supported (%s)" % info_plist
+    )
+
+    info_plist = gyp_path_to_build_path(info_plist)
+
+    # If explicitly set to preprocess the plist, invoke the C preprocessor and
+    # specify any defines as -D flags.
+    if (
+        xcode_settings.GetPerTargetSetting("INFOPLIST_PREPROCESS", default="NO")
+        == "YES"
+    ):
+        # Create an intermediate file based on the path.
+        defines = shlex.split(
+            xcode_settings.GetPerTargetSetting(
+                "INFOPLIST_PREPROCESSOR_DEFINITIONS", default=""
+            )
+        )
+    else:
+        defines = []
+
+    dest_plist = os.path.join(product_dir, xcode_settings.GetBundlePlistPath())
+    extra_env = xcode_settings.GetPerTargetSettings()
+
+    return info_plist, dest_plist, defines, extra_env
+
+
+def _GetXcodeEnv(
+    xcode_settings, built_products_dir, srcroot, configuration, additional_settings=None
+):
+    """Return the environment variables that Xcode would set. See
+  http://developer.apple.com/library/mac/#documentation/DeveloperTools/Reference/XcodeBuildSettingRef/1-Build_Setting_Reference/build_setting_ref.html#//apple_ref/doc/uid/TP40003931-CH3-SW153
+  for a full list.
+
+  Args:
+      xcode_settings: An XcodeSettings object. If this is None, this function
+          returns an empty dict.
+      built_products_dir: Absolute path to the built products dir.
+      srcroot: Absolute path to the source root.
+      configuration: The build configuration name.
+      additional_settings: An optional dict with more values to add to the
+          result.
+  """
+
+    if not xcode_settings:
+        return {}
+
+    # This function is considered a friend of XcodeSettings, so let it reach into
+    # its implementation details.
+    spec = xcode_settings.spec
+
+    # These are filled in on an as-needed basis.
+    env = {
+        "BUILT_FRAMEWORKS_DIR": built_products_dir,
+        "BUILT_PRODUCTS_DIR": built_products_dir,
+        "CONFIGURATION": configuration,
+        "PRODUCT_NAME": xcode_settings.GetProductName(),
+        # For FULL_PRODUCT_NAME see:
+        # /Developer/Platforms/MacOSX.platform/Developer/Library/Xcode/Specifications/MacOSX\ Product\ Types.xcspec  # noqa: E501
+        "SRCROOT": srcroot,
+        "SOURCE_ROOT": "${SRCROOT}",
+        # This is not true for static libraries, but currently the env is only
+        # written for bundles:
+        "TARGET_BUILD_DIR": built_products_dir,
+        "TEMP_DIR": "${TMPDIR}",
+        "XCODE_VERSION_ACTUAL": XcodeVersion()[0],
+    }
+    if xcode_settings.GetPerConfigSetting("SDKROOT", configuration):
+        env["SDKROOT"] = xcode_settings._SdkPath(configuration)
+    else:
+        env["SDKROOT"] = ""
+
+    if xcode_settings.mac_toolchain_dir:
+        env["DEVELOPER_DIR"] = xcode_settings.mac_toolchain_dir
+
+    if spec["type"] in (
+        "executable",
+        "static_library",
+        "shared_library",
+        "loadable_module",
+    ):
+        env["EXECUTABLE_NAME"] = xcode_settings.GetExecutableName()
+        env["EXECUTABLE_PATH"] = xcode_settings.GetExecutablePath()
+        env["FULL_PRODUCT_NAME"] = xcode_settings.GetFullProductName()
+        mach_o_type = xcode_settings.GetMachOType()
+        if mach_o_type:
+            env["MACH_O_TYPE"] = mach_o_type
+        env["PRODUCT_TYPE"] = xcode_settings.GetProductType()
+    if xcode_settings._IsBundle():
+        # xcodeproj_file.py sets the same Xcode subfolder value for this as for
+        # FRAMEWORKS_FOLDER_PATH so Xcode builds will actually use FFP's value.
+        env["BUILT_FRAMEWORKS_DIR"] = os.path.join(
+            built_products_dir + os.sep + xcode_settings.GetBundleFrameworksFolderPath()
+        )
+        env["CONTENTS_FOLDER_PATH"] = xcode_settings.GetBundleContentsFolderPath()
+        env["EXECUTABLE_FOLDER_PATH"] = xcode_settings.GetBundleExecutableFolderPath()
+        env[
+            "UNLOCALIZED_RESOURCES_FOLDER_PATH"
+        ] = xcode_settings.GetBundleResourceFolder()
+        env["JAVA_FOLDER_PATH"] = xcode_settings.GetBundleJavaFolderPath()
+        env["FRAMEWORKS_FOLDER_PATH"] = xcode_settings.GetBundleFrameworksFolderPath()
+        env[
+            "SHARED_FRAMEWORKS_FOLDER_PATH"
+        ] = xcode_settings.GetBundleSharedFrameworksFolderPath()
+        env[
+            "SHARED_SUPPORT_FOLDER_PATH"
+        ] = xcode_settings.GetBundleSharedSupportFolderPath()
+        env["PLUGINS_FOLDER_PATH"] = xcode_settings.GetBundlePlugInsFolderPath()
+        env["XPCSERVICES_FOLDER_PATH"] = xcode_settings.GetBundleXPCServicesFolderPath()
+        env["INFOPLIST_PATH"] = xcode_settings.GetBundlePlistPath()
+        env["WRAPPER_NAME"] = xcode_settings.GetWrapperName()
+
+    install_name = xcode_settings.GetInstallName()
+    if install_name:
+        env["LD_DYLIB_INSTALL_NAME"] = install_name
+    install_name_base = xcode_settings.GetInstallNameBase()
+    if install_name_base:
+        env["DYLIB_INSTALL_NAME_BASE"] = install_name_base
+    xcode_version, _ = XcodeVersion()
+    if xcode_version >= "0500" and not env.get("SDKROOT"):
+        sdk_root = xcode_settings._SdkRoot(configuration)
+        if not sdk_root:
+            sdk_root = xcode_settings._XcodeSdkPath("")
+        if sdk_root is None:
+            sdk_root = ""
+        env["SDKROOT"] = sdk_root
+
+    if not additional_settings:
+        additional_settings = {}
+    else:
+        # Flatten lists to strings.
+        for k in additional_settings:
+            if not isinstance(additional_settings[k], str):
+                additional_settings[k] = " ".join(additional_settings[k])
+    additional_settings.update(env)
+
+    for k in additional_settings:
+        additional_settings[k] = _NormalizeEnvVarReferences(additional_settings[k])
+
+    return additional_settings
+
+
+def _NormalizeEnvVarReferences(str):
+    """Takes a string containing variable references in the form ${FOO}, $(FOO),
+  or $FOO, and returns a string with all variable references in the form ${FOO}.
+  """
+    # $FOO -> ${FOO}
+    str = re.sub(r"\$([a-zA-Z_][a-zA-Z0-9_]*)", r"${\1}", str)
+
+    # $(FOO) -> ${FOO}
+    matches = re.findall(r"(\$\(([a-zA-Z0-9\-_]+)\))", str)
+    for match in matches:
+        to_replace, variable = match
+        assert "$(" not in match, "$($(FOO)) variables not supported: " + match
+        str = str.replace(to_replace, "${" + variable + "}")
+
+    return str
+
+
+def ExpandEnvVars(string, expansions):
+    """Expands ${VARIABLES}, $(VARIABLES), and $VARIABLES in string per the
+  expansions list. If the variable expands to something that references
+  another variable, this variable is expanded as well if it's in env --
+  until no variables present in env are left."""
+    for k, v in reversed(expansions):
+        string = string.replace("${" + k + "}", v)
+        string = string.replace("$(" + k + ")", v)
+        string = string.replace("$" + k, v)
+    return string
+
+
+def _TopologicallySortedEnvVarKeys(env):
+    """Takes a dict |env| whose values are strings that can refer to other keys,
+  for example env['foo'] = '$(bar) and $(baz)'. Returns a list L of all keys of
+  env such that key2 is after key1 in L if env[key2] refers to env[key1].
+
+  Throws an Exception in case of dependency cycles.
+  """
+    # Since environment variables can refer to other variables, the evaluation
+    # order is important. Below is the logic to compute the dependency graph
+    # and sort it.
+    regex = re.compile(r"\$\{([a-zA-Z0-9\-_]+)\}")
+
+    def GetEdges(node):
+        # Use a definition of edges such that user_of_variable -> used_varible.
+        # This happens to be easier in this case, since a variable's
+        # definition contains all variables it references in a single string.
+        # We can then reverse the result of the topological sort at the end.
+        # Since: reverse(topsort(DAG)) = topsort(reverse_edges(DAG))
+        matches = {v for v in regex.findall(env[node]) if v in env}
+        for dependee in matches:
+            assert "${" not in dependee, "Nested variables not supported: " + dependee
+        return matches
+
+    try:
+        # Topologically sort, and then reverse, because we used an edge definition
+        # that's inverted from the expected result of this function (see comment
+        # above).
+        order = gyp.common.TopologicallySorted(env.keys(), GetEdges)
+        order.reverse()
+        return order
+    except gyp.common.CycleError as e:
+        raise GypError(
+            "Xcode environment variables are cyclically dependent: " + str(e.nodes)
+        )
+
+
+def GetSortedXcodeEnv(
+    xcode_settings, built_products_dir, srcroot, configuration, additional_settings=None
+):
+    env = _GetXcodeEnv(
+        xcode_settings, built_products_dir, srcroot, configuration, additional_settings
+    )
+    return [(key, env[key]) for key in _TopologicallySortedEnvVarKeys(env)]
+
+
+def GetSpecPostbuildCommands(spec, quiet=False):
+    """Returns the list of postbuilds explicitly defined on |spec|, in a form
+  executable by a shell."""
+    postbuilds = []
+    for postbuild in spec.get("postbuilds", []):
+        if not quiet:
+            postbuilds.append(
+                "echo POSTBUILD\\(%s\\) %s"
+                % (spec["target_name"], postbuild["postbuild_name"])
+            )
+        postbuilds.append(gyp.common.EncodePOSIXShellList(postbuild["action"]))
+    return postbuilds
+
+
+def _HasIOSTarget(targets):
+    """Returns true if any target contains the iOS specific key
+  IPHONEOS_DEPLOYMENT_TARGET."""
+    for target_dict in targets.values():
+        for config in target_dict["configurations"].values():
+            if config.get("xcode_settings", {}).get("IPHONEOS_DEPLOYMENT_TARGET"):
+                return True
+    return False
+
+
+def _AddIOSDeviceConfigurations(targets):
+    """Clone all targets and append -iphoneos to the name. Configure these targets
+  to build for iOS devices and use correct architectures for those builds."""
+    for target_dict in targets.values():
+        toolset = target_dict["toolset"]
+        configs = target_dict["configurations"]
+        for config_name, simulator_config_dict in dict(configs).items():
+            iphoneos_config_dict = copy.deepcopy(simulator_config_dict)
+            configs[config_name + "-iphoneos"] = iphoneos_config_dict
+            configs[config_name + "-iphonesimulator"] = simulator_config_dict
+            if toolset == "target":
+                simulator_config_dict["xcode_settings"]["SDKROOT"] = "iphonesimulator"
+                iphoneos_config_dict["xcode_settings"]["SDKROOT"] = "iphoneos"
+    return targets
+
+
+def CloneConfigurationForDeviceAndEmulator(target_dicts):
+    """If |target_dicts| contains any iOS targets, automatically create -iphoneos
+  targets for iOS device builds."""
+    if _HasIOSTarget(target_dicts):
+        return _AddIOSDeviceConfigurations(target_dicts)
+    return target_dicts
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/xcode_ninja.py b/node_modules/node-gyp/gyp/pylib/gyp/xcode_ninja.py
new file mode 100644
index 0000000..bb74eac
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/xcode_ninja.py
@@ -0,0 +1,302 @@
+# Copyright (c) 2014 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Xcode-ninja wrapper project file generator.
+
+This updates the data structures passed to the Xcode gyp generator to build
+with ninja instead. The Xcode project itself is transformed into a list of
+executable targets, each with a build step to build with ninja, and a target
+with every source and resource file.  This appears to sidestep some of the
+major performance headaches experienced using complex projects and large number
+of targets within Xcode.
+"""
+
+import errno
+import gyp.generator.ninja
+import os
+import re
+import xml.sax.saxutils
+
+
+def _WriteWorkspace(main_gyp, sources_gyp, params):
+    """ Create a workspace to wrap main and sources gyp paths. """
+    (build_file_root, build_file_ext) = os.path.splitext(main_gyp)
+    workspace_path = build_file_root + ".xcworkspace"
+    options = params["options"]
+    if options.generator_output:
+        workspace_path = os.path.join(options.generator_output, workspace_path)
+    try:
+        os.makedirs(workspace_path)
+    except OSError as e:
+        if e.errno != errno.EEXIST:
+            raise
+    output_string = (
+        '<?xml version="1.0" encoding="UTF-8"?>\n' + '<Workspace version = "1.0">\n'
+    )
+    for gyp_name in [main_gyp, sources_gyp]:
+        name = os.path.splitext(os.path.basename(gyp_name))[0] + ".xcodeproj"
+        name = xml.sax.saxutils.quoteattr("group:" + name)
+        output_string += "  <FileRef location = %s></FileRef>\n" % name
+    output_string += "</Workspace>\n"
+
+    workspace_file = os.path.join(workspace_path, "contents.xcworkspacedata")
+
+    try:
+        with open(workspace_file) as input_file:
+            input_string = input_file.read()
+            if input_string == output_string:
+                return
+    except OSError:
+        # Ignore errors if the file doesn't exist.
+        pass
+
+    with open(workspace_file, "w") as output_file:
+        output_file.write(output_string)
+
+
+def _TargetFromSpec(old_spec, params):
+    """ Create fake target for xcode-ninja wrapper. """
+    # Determine ninja top level build dir (e.g. /path/to/out).
+    ninja_toplevel = None
+    jobs = 0
+    if params:
+        options = params["options"]
+        ninja_toplevel = os.path.join(
+            options.toplevel_dir, gyp.generator.ninja.ComputeOutputDir(params)
+        )
+        jobs = params.get("generator_flags", {}).get("xcode_ninja_jobs", 0)
+
+    target_name = old_spec.get("target_name")
+    product_name = old_spec.get("product_name", target_name)
+    product_extension = old_spec.get("product_extension")
+
+    ninja_target = {}
+    ninja_target["target_name"] = target_name
+    ninja_target["product_name"] = product_name
+    if product_extension:
+        ninja_target["product_extension"] = product_extension
+    ninja_target["toolset"] = old_spec.get("toolset")
+    ninja_target["default_configuration"] = old_spec.get("default_configuration")
+    ninja_target["configurations"] = {}
+
+    # Tell Xcode to look in |ninja_toplevel| for build products.
+    new_xcode_settings = {}
+    if ninja_toplevel:
+        new_xcode_settings["CONFIGURATION_BUILD_DIR"] = (
+            "%s/$(CONFIGURATION)$(EFFECTIVE_PLATFORM_NAME)" % ninja_toplevel
+        )
+
+    if "configurations" in old_spec:
+        for config in old_spec["configurations"]:
+            old_xcode_settings = old_spec["configurations"][config].get(
+                "xcode_settings", {}
+            )
+            if "IPHONEOS_DEPLOYMENT_TARGET" in old_xcode_settings:
+                new_xcode_settings["CODE_SIGNING_REQUIRED"] = "NO"
+                new_xcode_settings["IPHONEOS_DEPLOYMENT_TARGET"] = old_xcode_settings[
+                    "IPHONEOS_DEPLOYMENT_TARGET"
+                ]
+            for key in ["BUNDLE_LOADER", "TEST_HOST"]:
+                if key in old_xcode_settings:
+                    new_xcode_settings[key] = old_xcode_settings[key]
+
+            ninja_target["configurations"][config] = {}
+            ninja_target["configurations"][config][
+                "xcode_settings"
+            ] = new_xcode_settings
+
+    ninja_target["mac_bundle"] = old_spec.get("mac_bundle", 0)
+    ninja_target["mac_xctest_bundle"] = old_spec.get("mac_xctest_bundle", 0)
+    ninja_target["ios_app_extension"] = old_spec.get("ios_app_extension", 0)
+    ninja_target["ios_watchkit_extension"] = old_spec.get("ios_watchkit_extension", 0)
+    ninja_target["ios_watchkit_app"] = old_spec.get("ios_watchkit_app", 0)
+    ninja_target["type"] = old_spec["type"]
+    if ninja_toplevel:
+        ninja_target["actions"] = [
+            {
+                "action_name": "Compile and copy %s via ninja" % target_name,
+                "inputs": [],
+                "outputs": [],
+                "action": [
+                    "env",
+                    "PATH=%s" % os.environ["PATH"],
+                    "ninja",
+                    "-C",
+                    new_xcode_settings["CONFIGURATION_BUILD_DIR"],
+                    target_name,
+                ],
+                "message": "Compile and copy %s via ninja" % target_name,
+            },
+        ]
+        if jobs > 0:
+            ninja_target["actions"][0]["action"].extend(("-j", jobs))
+    return ninja_target
+
+
+def IsValidTargetForWrapper(target_extras, executable_target_pattern, spec):
+    """Limit targets for Xcode wrapper.
+
+  Xcode sometimes performs poorly with too many targets, so only include
+  proper executable targets, with filters to customize.
+  Arguments:
+    target_extras: Regular expression to always add, matching any target.
+    executable_target_pattern: Regular expression limiting executable targets.
+    spec: Specifications for target.
+  """
+    target_name = spec.get("target_name")
+    # Always include targets matching target_extras.
+    if target_extras is not None and re.search(target_extras, target_name):
+        return True
+
+    # Otherwise just show executable targets and xc_tests.
+    if int(spec.get("mac_xctest_bundle", 0)) != 0 or (
+        spec.get("type", "") == "executable"
+        and spec.get("product_extension", "") != "bundle"
+    ):
+
+        # If there is a filter and the target does not match, exclude the target.
+        if executable_target_pattern is not None:
+            if not re.search(executable_target_pattern, target_name):
+                return False
+        return True
+    return False
+
+
+def CreateWrapper(target_list, target_dicts, data, params):
+    """Initialize targets for the ninja wrapper.
+
+  This sets up the necessary variables in the targets to generate Xcode projects
+  that use ninja as an external builder.
+  Arguments:
+    target_list: List of target pairs: 'base/base.gyp:base'.
+    target_dicts: Dict of target properties keyed on target pair.
+    data: Dict of flattened build files keyed on gyp path.
+    params: Dict of global options for gyp.
+  """
+    orig_gyp = params["build_files"][0]
+    for gyp_name, gyp_dict in data.items():
+        if gyp_name == orig_gyp:
+            depth = gyp_dict["_DEPTH"]
+
+    # Check for custom main gyp name, otherwise use the default CHROMIUM_GYP_FILE
+    # and prepend .ninja before the .gyp extension.
+    generator_flags = params.get("generator_flags", {})
+    main_gyp = generator_flags.get("xcode_ninja_main_gyp", None)
+    if main_gyp is None:
+        (build_file_root, build_file_ext) = os.path.splitext(orig_gyp)
+        main_gyp = build_file_root + ".ninja" + build_file_ext
+
+    # Create new |target_list|, |target_dicts| and |data| data structures.
+    new_target_list = []
+    new_target_dicts = {}
+    new_data = {}
+
+    # Set base keys needed for |data|.
+    new_data[main_gyp] = {}
+    new_data[main_gyp]["included_files"] = []
+    new_data[main_gyp]["targets"] = []
+    new_data[main_gyp]["xcode_settings"] = data[orig_gyp].get("xcode_settings", {})
+
+    # Normally the xcode-ninja generator includes only valid executable targets.
+    # If |xcode_ninja_executable_target_pattern| is set, that list is reduced to
+    # executable targets that match the pattern. (Default all)
+    executable_target_pattern = generator_flags.get(
+        "xcode_ninja_executable_target_pattern", None
+    )
+
+    # For including other non-executable targets, add the matching target name
+    # to the |xcode_ninja_target_pattern| regular expression. (Default none)
+    target_extras = generator_flags.get("xcode_ninja_target_pattern", None)
+
+    for old_qualified_target in target_list:
+        spec = target_dicts[old_qualified_target]
+        if IsValidTargetForWrapper(target_extras, executable_target_pattern, spec):
+            # Add to new_target_list.
+            target_name = spec.get("target_name")
+            new_target_name = f"{main_gyp}:{target_name}#target"
+            new_target_list.append(new_target_name)
+
+            # Add to new_target_dicts.
+            new_target_dicts[new_target_name] = _TargetFromSpec(spec, params)
+
+            # Add to new_data.
+            for old_target in data[old_qualified_target.split(":")[0]]["targets"]:
+                if old_target["target_name"] == target_name:
+                    new_data_target = {}
+                    new_data_target["target_name"] = old_target["target_name"]
+                    new_data_target["toolset"] = old_target["toolset"]
+                    new_data[main_gyp]["targets"].append(new_data_target)
+
+    # Create sources target.
+    sources_target_name = "sources_for_indexing"
+    sources_target = _TargetFromSpec(
+        {
+            "target_name": sources_target_name,
+            "toolset": "target",
+            "default_configuration": "Default",
+            "mac_bundle": "0",
+            "type": "executable",
+        },
+        None,
+    )
+
+    # Tell Xcode to look everywhere for headers.
+    sources_target["configurations"] = {"Default": {"include_dirs": [depth]}}
+
+    # Put excluded files into the sources target so they can be opened in Xcode.
+    skip_excluded_files = not generator_flags.get(
+        "xcode_ninja_list_excluded_files", True
+    )
+
+    sources = []
+    for target, target_dict in target_dicts.items():
+        base = os.path.dirname(target)
+        files = target_dict.get("sources", []) + target_dict.get(
+            "mac_bundle_resources", []
+        )
+
+        if not skip_excluded_files:
+            files.extend(
+                target_dict.get("sources_excluded", [])
+                + target_dict.get("mac_bundle_resources_excluded", [])
+            )
+
+        for action in target_dict.get("actions", []):
+            files.extend(action.get("inputs", []))
+
+            if not skip_excluded_files:
+                files.extend(action.get("inputs_excluded", []))
+
+        # Remove files starting with $. These are mostly intermediate files for the
+        # build system.
+        files = [file for file in files if not file.startswith("$")]
+
+        # Make sources relative to root build file.
+        relative_path = os.path.dirname(main_gyp)
+        sources += [
+            os.path.relpath(os.path.join(base, file), relative_path) for file in files
+        ]
+
+    sources_target["sources"] = sorted(set(sources))
+
+    # Put sources_to_index in it's own gyp.
+    sources_gyp = os.path.join(os.path.dirname(main_gyp), sources_target_name + ".gyp")
+    fully_qualified_target_name = f"{sources_gyp}:{sources_target_name}#target"
+
+    # Add to new_target_list, new_target_dicts and new_data.
+    new_target_list.append(fully_qualified_target_name)
+    new_target_dicts[fully_qualified_target_name] = sources_target
+    new_data_target = {}
+    new_data_target["target_name"] = sources_target["target_name"]
+    new_data_target["_DEPTH"] = depth
+    new_data_target["toolset"] = "target"
+    new_data[sources_gyp] = {}
+    new_data[sources_gyp]["targets"] = []
+    new_data[sources_gyp]["included_files"] = []
+    new_data[sources_gyp]["xcode_settings"] = data[orig_gyp].get("xcode_settings", {})
+    new_data[sources_gyp]["targets"].append(new_data_target)
+
+    # Write workspace to file.
+    _WriteWorkspace(main_gyp, sources_gyp, params)
+    return (new_target_list, new_target_dicts, new_data)
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/xcodeproj_file.py b/node_modules/node-gyp/gyp/pylib/gyp/xcodeproj_file.py
new file mode 100644
index 0000000..076eea3
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/xcodeproj_file.py
@@ -0,0 +1,3197 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Xcode project file generator.
+
+This module is both an Xcode project file generator and a documentation of the
+Xcode project file format.  Knowledge of the project file format was gained
+based on extensive experience with Xcode, and by making changes to projects in
+Xcode.app and observing the resultant changes in the associated project files.
+
+XCODE PROJECT FILES
+
+The generator targets the file format as written by Xcode 3.2 (specifically,
+3.2.6), but past experience has taught that the format has not changed
+significantly in the past several years, and future versions of Xcode are able
+to read older project files.
+
+Xcode project files are "bundled": the project "file" from an end-user's
+perspective is actually a directory with an ".xcodeproj" extension.  The
+project file from this module's perspective is actually a file inside this
+directory, always named "project.pbxproj".  This file contains a complete
+description of the project and is all that is needed to use the xcodeproj.
+Other files contained in the xcodeproj directory are simply used to store
+per-user settings, such as the state of various UI elements in the Xcode
+application.
+
+The project.pbxproj file is a property list, stored in a format almost
+identical to the NeXTstep property list format.  The file is able to carry
+Unicode data, and is encoded in UTF-8.  The root element in the property list
+is a dictionary that contains several properties of minimal interest, and two
+properties of immense interest.  The most important property is a dictionary
+named "objects".  The entire structure of the project is represented by the
+children of this property.  The objects dictionary is keyed by unique 96-bit
+values represented by 24 uppercase hexadecimal characters.  Each value in the
+objects dictionary is itself a dictionary, describing an individual object.
+
+Each object in the dictionary is a member of a class, which is identified by
+the "isa" property of each object.  A variety of classes are represented in a
+project file.  Objects can refer to other objects by ID, using the 24-character
+hexadecimal object key.  A project's objects form a tree, with a root object
+of class PBXProject at the root.  As an example, the PBXProject object serves
+as parent to an XCConfigurationList object defining the build configurations
+used in the project, a PBXGroup object serving as a container for all files
+referenced in the project, and a list of target objects, each of which defines
+a target in the project.  There are several different types of target object,
+such as PBXNativeTarget and PBXAggregateTarget.  In this module, this
+relationship is expressed by having each target type derive from an abstract
+base named XCTarget.
+
+The project.pbxproj file's root dictionary also contains a property, sibling to
+the "objects" dictionary, named "rootObject".  The value of rootObject is a
+24-character object key referring to the root PBXProject object in the
+objects dictionary.
+
+In Xcode, every file used as input to a target or produced as a final product
+of a target must appear somewhere in the hierarchy rooted at the PBXGroup
+object referenced by the PBXProject's mainGroup property.  A PBXGroup is
+generally represented as a folder in the Xcode application.  PBXGroups can
+contain other PBXGroups as well as PBXFileReferences, which are pointers to
+actual files.
+
+Each XCTarget contains a list of build phases, represented in this module by
+the abstract base XCBuildPhase.  Examples of concrete XCBuildPhase derivations
+are PBXSourcesBuildPhase and PBXFrameworksBuildPhase, which correspond to the
+"Compile Sources" and "Link Binary With Libraries" phases displayed in the
+Xcode application.  Files used as input to these phases (for example, source
+files in the former case and libraries and frameworks in the latter) are
+represented by PBXBuildFile objects, referenced by elements of "files" lists
+in XCTarget objects.  Each PBXBuildFile object refers to a PBXBuildFile
+object as a "weak" reference: it does not "own" the PBXBuildFile, which is
+owned by the root object's mainGroup or a descendant group.  In most cases, the
+layer of indirection between an XCBuildPhase and a PBXFileReference via a
+PBXBuildFile appears extraneous, but there's actually one reason for this:
+file-specific compiler flags are added to the PBXBuildFile object so as to
+allow a single file to be a member of multiple targets while having distinct
+compiler flags for each.  These flags can be modified in the Xcode applciation
+in the "Build" tab of a File Info window.
+
+When a project is open in the Xcode application, Xcode will rewrite it.  As
+such, this module is careful to adhere to the formatting used by Xcode, to
+avoid insignificant changes appearing in the file when it is used in the
+Xcode application.  This will keep version control repositories happy, and
+makes it possible to compare a project file used in Xcode to one generated by
+this module to determine if any significant changes were made in the
+application.
+
+Xcode has its own way of assigning 24-character identifiers to each object,
+which is not duplicated here.  Because the identifier only is only generated
+once, when an object is created, and is then left unchanged, there is no need
+to attempt to duplicate Xcode's behavior in this area.  The generator is free
+to select any identifier, even at random, to refer to the objects it creates,
+and Xcode will retain those identifiers and use them when subsequently
+rewriting the project file.  However, the generator would choose new random
+identifiers each time the project files are generated, leading to difficulties
+comparing "used" project files to "pristine" ones produced by this module,
+and causing the appearance of changes as every object identifier is changed
+when updated projects are checked in to a version control repository.  To
+mitigate this problem, this module chooses identifiers in a more deterministic
+way, by hashing a description of each object as well as its parent and ancestor
+objects.  This strategy should result in minimal "shift" in IDs as successive
+generations of project files are produced.
+
+THIS MODULE
+
+This module introduces several classes, all derived from the XCObject class.
+Nearly all of the "brains" are built into the XCObject class, which understands
+how to create and modify objects, maintain the proper tree structure, compute
+identifiers, and print objects.  For the most part, classes derived from
+XCObject need only provide a _schema class object, a dictionary that
+expresses what properties objects of the class may contain.
+
+Given this structure, it's possible to build a minimal project file by creating
+objects of the appropriate types and making the proper connections:
+
+  config_list = XCConfigurationList()
+  group = PBXGroup()
+  project = PBXProject({'buildConfigurationList': config_list,
+                        'mainGroup': group})
+
+With the project object set up, it can be added to an XCProjectFile object.
+XCProjectFile is a pseudo-class in the sense that it is a concrete XCObject
+subclass that does not actually correspond to a class type found in a project
+file.  Rather, it is used to represent the project file's root dictionary.
+Printing an XCProjectFile will print the entire project file, including the
+full "objects" dictionary.
+
+  project_file = XCProjectFile({'rootObject': project})
+  project_file.ComputeIDs()
+  project_file.Print()
+
+Xcode project files are always encoded in UTF-8.  This module will accept
+strings of either the str class or the unicode class.  Strings of class str
+are assumed to already be encoded in UTF-8.  Obviously, if you're just using
+ASCII, you won't encounter difficulties because ASCII is a UTF-8 subset.
+Strings of class unicode are handled properly and encoded in UTF-8 when
+a project file is output.
+"""
+
+import gyp.common
+from functools import cmp_to_key
+import hashlib
+from operator import attrgetter
+import posixpath
+import re
+import struct
+import sys
+
+
+def cmp(x, y):
+    return (x > y) - (x < y)
+
+
+# See XCObject._EncodeString.  This pattern is used to determine when a string
+# can be printed unquoted.  Strings that match this pattern may be printed
+# unquoted.  Strings that do not match must be quoted and may be further
+# transformed to be properly encoded.  Note that this expression matches the
+# characters listed with "+", for 1 or more occurrences: if a string is empty,
+# it must not match this pattern, because it needs to be encoded as "".
+_unquoted = re.compile("^[A-Za-z0-9$./_]+$")
+
+# Strings that match this pattern are quoted regardless of what _unquoted says.
+# Oddly, Xcode will quote any string with a run of three or more underscores.
+_quoted = re.compile("___")
+
+# This pattern should match any character that needs to be escaped by
+# XCObject._EncodeString.  See that function.
+_escaped = re.compile('[\\\\"]|[\x00-\x1f]')
+
+
+# Used by SourceTreeAndPathFromPath
+_path_leading_variable = re.compile(r"^\$\((.*?)\)(/(.*))?$")
+
+
+def SourceTreeAndPathFromPath(input_path):
+    """Given input_path, returns a tuple with sourceTree and path values.
+
+  Examples:
+    input_path     (source_tree, output_path)
+    '$(VAR)/path'  ('VAR', 'path')
+    '$(VAR)'       ('VAR', None)
+    'path'         (None, 'path')
+  """
+
+    source_group_match = _path_leading_variable.match(input_path)
+    if source_group_match:
+        source_tree = source_group_match.group(1)
+        output_path = source_group_match.group(3)  # This may be None.
+    else:
+        source_tree = None
+        output_path = input_path
+
+    return (source_tree, output_path)
+
+
+def ConvertVariablesToShellSyntax(input_string):
+    return re.sub(r"\$\((.*?)\)", "${\\1}", input_string)
+
+
+class XCObject:
+    """The abstract base of all class types used in Xcode project files.
+
+  Class variables:
+    _schema: A dictionary defining the properties of this class.  The keys to
+             _schema are string property keys as used in project files.  Values
+             are a list of four or five elements:
+             [ is_list, property_type, is_strong, is_required, default ]
+             is_list: True if the property described is a list, as opposed
+                      to a single element.
+             property_type: The type to use as the value of the property,
+                            or if is_list is True, the type to use for each
+                            element of the value's list.  property_type must
+                            be an XCObject subclass, or one of the built-in
+                            types str, int, or dict.
+             is_strong: If property_type is an XCObject subclass, is_strong
+                        is True to assert that this class "owns," or serves
+                        as parent, to the property value (or, if is_list is
+                        True, values).  is_strong must be False if
+                        property_type is not an XCObject subclass.
+             is_required: True if the property is required for the class.
+                          Note that is_required being True does not preclude
+                          an empty string ("", in the case of property_type
+                          str) or list ([], in the case of is_list True) from
+                          being set for the property.
+             default: Optional.  If is_required is True, default may be set
+                      to provide a default value for objects that do not supply
+                      their own value.  If is_required is True and default
+                      is not provided, users of the class must supply their own
+                      value for the property.
+             Note that although the values of the array are expressed in
+             boolean terms, subclasses provide values as integers to conserve
+             horizontal space.
+    _should_print_single_line: False in XCObject.  Subclasses whose objects
+                               should be written to the project file in the
+                               alternate single-line format, such as
+                               PBXFileReference and PBXBuildFile, should
+                               set this to True.
+    _encode_transforms: Used by _EncodeString to encode unprintable characters.
+                        The index into this list is the ordinal of the
+                        character to transform; each value is a string
+                        used to represent the character in the output.  XCObject
+                        provides an _encode_transforms list suitable for most
+                        XCObject subclasses.
+    _alternate_encode_transforms: Provided for subclasses that wish to use
+                                  the alternate encoding rules.  Xcode seems
+                                  to use these rules when printing objects in
+                                  single-line format.  Subclasses that desire
+                                  this behavior should set _encode_transforms
+                                  to _alternate_encode_transforms.
+    _hashables: A list of XCObject subclasses that can be hashed by ComputeIDs
+                to construct this object's ID.  Most classes that need custom
+                hashing behavior should do it by overriding Hashables,
+                but in some cases an object's parent may wish to push a
+                hashable value into its child, and it can do so by appending
+                to _hashables.
+  Attributes:
+    id: The object's identifier, a 24-character uppercase hexadecimal string.
+        Usually, objects being created should not set id until the entire
+        project file structure is built.  At that point, UpdateIDs() should
+        be called on the root object to assign deterministic values for id to
+        each object in the tree.
+    parent: The object's parent.  This is set by a parent XCObject when a child
+            object is added to it.
+    _properties: The object's property dictionary.  An object's properties are
+                 described by its class' _schema variable.
+  """
+
+    _schema = {}
+    _should_print_single_line = False
+
+    # See _EncodeString.
+    _encode_transforms = []
+    i = 0
+    while i < ord(" "):
+        _encode_transforms.append("\\U%04x" % i)
+        i = i + 1
+    _encode_transforms[7] = "\\a"
+    _encode_transforms[8] = "\\b"
+    _encode_transforms[9] = "\\t"
+    _encode_transforms[10] = "\\n"
+    _encode_transforms[11] = "\\v"
+    _encode_transforms[12] = "\\f"
+    _encode_transforms[13] = "\\n"
+
+    _alternate_encode_transforms = list(_encode_transforms)
+    _alternate_encode_transforms[9] = chr(9)
+    _alternate_encode_transforms[10] = chr(10)
+    _alternate_encode_transforms[11] = chr(11)
+
+    def __init__(self, properties=None, id=None, parent=None):
+        self.id = id
+        self.parent = parent
+        self._properties = {}
+        self._hashables = []
+        self._SetDefaultsFromSchema()
+        self.UpdateProperties(properties)
+
+    def __repr__(self):
+        try:
+            name = self.Name()
+        except NotImplementedError:
+            return f"<{self.__class__.__name__} at 0x{id(self):x}>"
+        return f"<{self.__class__.__name__} {name!r} at 0x{id(self):x}>"
+
+    def Copy(self):
+        """Make a copy of this object.
+
+    The new object will have its own copy of lists and dicts.  Any XCObject
+    objects owned by this object (marked "strong") will be copied in the
+    new object, even those found in lists.  If this object has any weak
+    references to other XCObjects, the same references are added to the new
+    object without making a copy.
+    """
+
+        that = self.__class__(id=self.id, parent=self.parent)
+        for key, value in self._properties.items():
+            is_strong = self._schema[key][2]
+
+            if isinstance(value, XCObject):
+                if is_strong:
+                    new_value = value.Copy()
+                    new_value.parent = that
+                    that._properties[key] = new_value
+                else:
+                    that._properties[key] = value
+            elif isinstance(value, (str, int)):
+                that._properties[key] = value
+            elif isinstance(value, list):
+                if is_strong:
+                    # If is_strong is True, each element is an XCObject, so it's safe to
+                    # call Copy.
+                    that._properties[key] = []
+                    for item in value:
+                        new_item = item.Copy()
+                        new_item.parent = that
+                        that._properties[key].append(new_item)
+                else:
+                    that._properties[key] = value[:]
+            elif isinstance(value, dict):
+                # dicts are never strong.
+                if is_strong:
+                    raise TypeError(
+                        "Strong dict for key " + key + " in " + self.__class__.__name__
+                    )
+                else:
+                    that._properties[key] = value.copy()
+            else:
+                raise TypeError(
+                    "Unexpected type "
+                    + value.__class__.__name__
+                    + " for key "
+                    + key
+                    + " in "
+                    + self.__class__.__name__
+                )
+
+        return that
+
+    def Name(self):
+        """Return the name corresponding to an object.
+
+    Not all objects necessarily need to be nameable, and not all that do have
+    a "name" property.  Override as needed.
+    """
+
+        # If the schema indicates that "name" is required, try to access the
+        # property even if it doesn't exist.  This will result in a KeyError
+        # being raised for the property that should be present, which seems more
+        # appropriate than NotImplementedError in this case.
+        if "name" in self._properties or (
+            "name" in self._schema and self._schema["name"][3]
+        ):
+            return self._properties["name"]
+
+        raise NotImplementedError(self.__class__.__name__ + " must implement Name")
+
+    def Comment(self):
+        """Return a comment string for the object.
+
+    Most objects just use their name as the comment, but PBXProject uses
+    different values.
+
+    The returned comment is not escaped and does not have any comment marker
+    strings applied to it.
+    """
+
+        return self.Name()
+
+    def Hashables(self):
+        hashables = [self.__class__.__name__]
+
+        name = self.Name()
+        if name is not None:
+            hashables.append(name)
+
+        hashables.extend(self._hashables)
+
+        return hashables
+
+    def HashablesForChild(self):
+        return None
+
+    def ComputeIDs(self, recursive=True, overwrite=True, seed_hash=None):
+        """Set "id" properties deterministically.
+
+    An object's "id" property is set based on a hash of its class type and
+    name, as well as the class type and name of all ancestor objects.  As
+    such, it is only advisable to call ComputeIDs once an entire project file
+    tree is built.
+
+    If recursive is True, recurse into all descendant objects and update their
+    hashes.
+
+    If overwrite is True, any existing value set in the "id" property will be
+    replaced.
+    """
+
+        def _HashUpdate(hash, data):
+            """Update hash with data's length and contents.
+
+      If the hash were updated only with the value of data, it would be
+      possible for clowns to induce collisions by manipulating the names of
+      their objects.  By adding the length, it's exceedingly less likely that
+      ID collisions will be encountered, intentionally or not.
+      """
+
+            hash.update(struct.pack(">i", len(data)))
+            if isinstance(data, str):
+                data = data.encode("utf-8")
+            hash.update(data)
+
+        if seed_hash is None:
+            seed_hash = hashlib.sha1()
+
+        hash = seed_hash.copy()
+
+        hashables = self.Hashables()
+        assert len(hashables) > 0
+        for hashable in hashables:
+            _HashUpdate(hash, hashable)
+
+        if recursive:
+            hashables_for_child = self.HashablesForChild()
+            if hashables_for_child is None:
+                child_hash = hash
+            else:
+                assert len(hashables_for_child) > 0
+                child_hash = seed_hash.copy()
+                for hashable in hashables_for_child:
+                    _HashUpdate(child_hash, hashable)
+
+            for child in self.Children():
+                child.ComputeIDs(recursive, overwrite, child_hash)
+
+        if overwrite or self.id is None:
+            # Xcode IDs are only 96 bits (24 hex characters), but a SHA-1 digest is
+            # is 160 bits.  Instead of throwing out 64 bits of the digest, xor them
+            # into the portion that gets used.
+            assert hash.digest_size % 4 == 0
+            digest_int_count = hash.digest_size // 4
+            digest_ints = struct.unpack(">" + "I" * digest_int_count, hash.digest())
+            id_ints = [0, 0, 0]
+            for index in range(0, digest_int_count):
+                id_ints[index % 3] ^= digest_ints[index]
+            self.id = "%08X%08X%08X" % tuple(id_ints)
+
+    def EnsureNoIDCollisions(self):
+        """Verifies that no two objects have the same ID.  Checks all descendants.
+    """
+
+        ids = {}
+        descendants = self.Descendants()
+        for descendant in descendants:
+            if descendant.id in ids:
+                other = ids[descendant.id]
+                raise KeyError(
+                    'Duplicate ID %s, objects "%s" and "%s" in "%s"'
+                    % (
+                        descendant.id,
+                        str(descendant._properties),
+                        str(other._properties),
+                        self._properties["rootObject"].Name(),
+                    )
+                )
+            ids[descendant.id] = descendant
+
+    def Children(self):
+        """Returns a list of all of this object's owned (strong) children."""
+
+        children = []
+        for property, attributes in self._schema.items():
+            (is_list, property_type, is_strong) = attributes[0:3]
+            if is_strong and property in self._properties:
+                if not is_list:
+                    children.append(self._properties[property])
+                else:
+                    children.extend(self._properties[property])
+        return children
+
+    def Descendants(self):
+        """Returns a list of all of this object's descendants, including this
+    object.
+    """
+
+        children = self.Children()
+        descendants = [self]
+        for child in children:
+            descendants.extend(child.Descendants())
+        return descendants
+
+    def PBXProjectAncestor(self):
+        # The base case for recursion is defined at PBXProject.PBXProjectAncestor.
+        if self.parent:
+            return self.parent.PBXProjectAncestor()
+        return None
+
+    def _EncodeComment(self, comment):
+        """Encodes a comment to be placed in the project file output, mimicking
+    Xcode behavior.
+    """
+
+        # This mimics Xcode behavior by wrapping the comment in "/*" and "*/".  If
+        # the string already contains a "*/", it is turned into "(*)/".  This keeps
+        # the file writer from outputting something that would be treated as the
+        # end of a comment in the middle of something intended to be entirely a
+        # comment.
+
+        return "/* " + comment.replace("*/", "(*)/") + " */"
+
+    def _EncodeTransform(self, match):
+        # This function works closely with _EncodeString.  It will only be called
+        # by re.sub with match.group(0) containing a character matched by the
+        # the _escaped expression.
+        char = match.group(0)
+
+        # Backslashes (\) and quotation marks (") are always replaced with a
+        # backslash-escaped version of the same.  Everything else gets its
+        # replacement from the class' _encode_transforms array.
+        if char == "\\":
+            return "\\\\"
+        if char == '"':
+            return '\\"'
+        return self._encode_transforms[ord(char)]
+
+    def _EncodeString(self, value):
+        """Encodes a string to be placed in the project file output, mimicking
+    Xcode behavior.
+    """
+
+        # Use quotation marks when any character outside of the range A-Z, a-z, 0-9,
+        # $ (dollar sign), . (period), and _ (underscore) is present.  Also use
+        # quotation marks to represent empty strings.
+        #
+        # Escape " (double-quote) and \ (backslash) by preceding them with a
+        # backslash.
+        #
+        # Some characters below the printable ASCII range are encoded specially:
+        #     7 ^G BEL is encoded as "\a"
+        #     8 ^H BS  is encoded as "\b"
+        #    11 ^K VT  is encoded as "\v"
+        #    12 ^L NP  is encoded as "\f"
+        #   127 ^? DEL is passed through as-is without escaping
+        #  - In PBXFileReference and PBXBuildFile objects:
+        #     9 ^I HT  is passed through as-is without escaping
+        #    10 ^J NL  is passed through as-is without escaping
+        #    13 ^M CR  is passed through as-is without escaping
+        #  - In other objects:
+        #     9 ^I HT  is encoded as "\t"
+        #    10 ^J NL  is encoded as "\n"
+        #    13 ^M CR  is encoded as "\n" rendering it indistinguishable from
+        #              10 ^J NL
+        # All other characters within the ASCII control character range (0 through
+        # 31 inclusive) are encoded as "\U001f" referring to the Unicode code point
+        # in hexadecimal.  For example, character 14 (^N SO) is encoded as "\U000e".
+        # Characters above the ASCII range are passed through to the output encoded
+        # as UTF-8 without any escaping.  These mappings are contained in the
+        # class' _encode_transforms list.
+
+        if _unquoted.search(value) and not _quoted.search(value):
+            return value
+
+        return '"' + _escaped.sub(self._EncodeTransform, value) + '"'
+
+    def _XCPrint(self, file, tabs, line):
+        file.write("\t" * tabs + line)
+
+    def _XCPrintableValue(self, tabs, value, flatten_list=False):
+        """Returns a representation of value that may be printed in a project file,
+    mimicking Xcode's behavior.
+
+    _XCPrintableValue can handle str and int values, XCObjects (which are
+    made printable by returning their id property), and list and dict objects
+    composed of any of the above types.  When printing a list or dict, and
+    _should_print_single_line is False, the tabs parameter is used to determine
+    how much to indent the lines corresponding to the items in the list or
+    dict.
+
+    If flatten_list is True, single-element lists will be transformed into
+    strings.
+    """
+
+        printable = ""
+        comment = None
+
+        if self._should_print_single_line:
+            sep = " "
+            element_tabs = ""
+            end_tabs = ""
+        else:
+            sep = "\n"
+            element_tabs = "\t" * (tabs + 1)
+            end_tabs = "\t" * tabs
+
+        if isinstance(value, XCObject):
+            printable += value.id
+            comment = value.Comment()
+        elif isinstance(value, str):
+            printable += self._EncodeString(value)
+        elif isinstance(value, str):
+            printable += self._EncodeString(value.encode("utf-8"))
+        elif isinstance(value, int):
+            printable += str(value)
+        elif isinstance(value, list):
+            if flatten_list and len(value) <= 1:
+                if len(value) == 0:
+                    printable += self._EncodeString("")
+                else:
+                    printable += self._EncodeString(value[0])
+            else:
+                printable = "(" + sep
+                for item in value:
+                    printable += (
+                        element_tabs
+                        + self._XCPrintableValue(tabs + 1, item, flatten_list)
+                        + ","
+                        + sep
+                    )
+                printable += end_tabs + ")"
+        elif isinstance(value, dict):
+            printable = "{" + sep
+            for item_key, item_value in sorted(value.items()):
+                printable += (
+                    element_tabs
+                    + self._XCPrintableValue(tabs + 1, item_key, flatten_list)
+                    + " = "
+                    + self._XCPrintableValue(tabs + 1, item_value, flatten_list)
+                    + ";"
+                    + sep
+                )
+            printable += end_tabs + "}"
+        else:
+            raise TypeError("Can't make " + value.__class__.__name__ + " printable")
+
+        if comment:
+            printable += " " + self._EncodeComment(comment)
+
+        return printable
+
+    def _XCKVPrint(self, file, tabs, key, value):
+        """Prints a key and value, members of an XCObject's _properties dictionary,
+    to file.
+
+    tabs is an int identifying the indentation level.  If the class'
+    _should_print_single_line variable is True, tabs is ignored and the
+    key-value pair will be followed by a space insead of a newline.
+    """
+
+        if self._should_print_single_line:
+            printable = ""
+            after_kv = " "
+        else:
+            printable = "\t" * tabs
+            after_kv = "\n"
+
+        # Xcode usually prints remoteGlobalIDString values in PBXContainerItemProxy
+        # objects without comments.  Sometimes it prints them with comments, but
+        # the majority of the time, it doesn't.  To avoid unnecessary changes to
+        # the project file after Xcode opens it, don't write comments for
+        # remoteGlobalIDString.  This is a sucky hack and it would certainly be
+        # cleaner to extend the schema to indicate whether or not a comment should
+        # be printed, but since this is the only case where the problem occurs and
+        # Xcode itself can't seem to make up its mind, the hack will suffice.
+        #
+        # Also see PBXContainerItemProxy._schema['remoteGlobalIDString'].
+        if key == "remoteGlobalIDString" and isinstance(self, PBXContainerItemProxy):
+            value_to_print = value.id
+        else:
+            value_to_print = value
+
+        # PBXBuildFile's settings property is represented in the output as a dict,
+        # but a hack here has it represented as a string. Arrange to strip off the
+        # quotes so that it shows up in the output as expected.
+        if key == "settings" and isinstance(self, PBXBuildFile):
+            strip_value_quotes = True
+        else:
+            strip_value_quotes = False
+
+        # In another one-off, let's set flatten_list on buildSettings properties
+        # of XCBuildConfiguration objects, because that's how Xcode treats them.
+        if key == "buildSettings" and isinstance(self, XCBuildConfiguration):
+            flatten_list = True
+        else:
+            flatten_list = False
+
+        try:
+            printable_key = self._XCPrintableValue(tabs, key, flatten_list)
+            printable_value = self._XCPrintableValue(tabs, value_to_print, flatten_list)
+            if (
+                strip_value_quotes
+                and len(printable_value) > 1
+                and printable_value[0] == '"'
+                and printable_value[-1] == '"'
+            ):
+                printable_value = printable_value[1:-1]
+            printable += printable_key + " = " + printable_value + ";" + after_kv
+        except TypeError as e:
+            gyp.common.ExceptionAppend(e, 'while printing key "%s"' % key)
+            raise
+
+        self._XCPrint(file, 0, printable)
+
+    def Print(self, file=sys.stdout):
+        """Prints a reprentation of this object to file, adhering to Xcode output
+    formatting.
+    """
+
+        self.VerifyHasRequiredProperties()
+
+        if self._should_print_single_line:
+            # When printing an object in a single line, Xcode doesn't put any space
+            # between the beginning of a dictionary (or presumably a list) and the
+            # first contained item, so you wind up with snippets like
+            #   ...CDEF = {isa = PBXFileReference; fileRef = 0123...
+            # If it were me, I would have put a space in there after the opening
+            # curly, but I guess this is just another one of those inconsistencies
+            # between how Xcode prints PBXFileReference and PBXBuildFile objects as
+            # compared to other objects.  Mimic Xcode's behavior here by using an
+            # empty string for sep.
+            sep = ""
+            end_tabs = 0
+        else:
+            sep = "\n"
+            end_tabs = 2
+
+        # Start the object.  For example, '\t\tPBXProject = {\n'.
+        self._XCPrint(file, 2, self._XCPrintableValue(2, self) + " = {" + sep)
+
+        # "isa" isn't in the _properties dictionary, it's an intrinsic property
+        # of the class which the object belongs to.  Xcode always outputs "isa"
+        # as the first element of an object dictionary.
+        self._XCKVPrint(file, 3, "isa", self.__class__.__name__)
+
+        # The remaining elements of an object dictionary are sorted alphabetically.
+        for property, value in sorted(self._properties.items()):
+            self._XCKVPrint(file, 3, property, value)
+
+        # End the object.
+        self._XCPrint(file, end_tabs, "};\n")
+
+    def UpdateProperties(self, properties, do_copy=False):
+        """Merge the supplied properties into the _properties dictionary.
+
+    The input properties must adhere to the class schema or a KeyError or
+    TypeError exception will be raised.  If adding an object of an XCObject
+    subclass and the schema indicates a strong relationship, the object's
+    parent will be set to this object.
+
+    If do_copy is True, then lists, dicts, strong-owned XCObjects, and
+    strong-owned XCObjects in lists will be copied instead of having their
+    references added.
+    """
+
+        if properties is None:
+            return
+
+        for property, value in properties.items():
+            # Make sure the property is in the schema.
+            if property not in self._schema:
+                raise KeyError(property + " not in " + self.__class__.__name__)
+
+            # Make sure the property conforms to the schema.
+            (is_list, property_type, is_strong) = self._schema[property][0:3]
+            if is_list:
+                if value.__class__ != list:
+                    raise TypeError(
+                        property
+                        + " of "
+                        + self.__class__.__name__
+                        + " must be list, not "
+                        + value.__class__.__name__
+                    )
+                for item in value:
+                    if not isinstance(item, property_type) and not (
+                        isinstance(item, str) and property_type == str
+                    ):
+                        # Accept unicode where str is specified.  str is treated as
+                        # UTF-8-encoded.
+                        raise TypeError(
+                            "item of "
+                            + property
+                            + " of "
+                            + self.__class__.__name__
+                            + " must be "
+                            + property_type.__name__
+                            + ", not "
+                            + item.__class__.__name__
+                        )
+            elif not isinstance(value, property_type) and not (
+                isinstance(value, str) and property_type == str
+            ):
+                # Accept unicode where str is specified.  str is treated as
+                # UTF-8-encoded.
+                raise TypeError(
+                    property
+                    + " of "
+                    + self.__class__.__name__
+                    + " must be "
+                    + property_type.__name__
+                    + ", not "
+                    + value.__class__.__name__
+                )
+
+            # Checks passed, perform the assignment.
+            if do_copy:
+                if isinstance(value, XCObject):
+                    if is_strong:
+                        self._properties[property] = value.Copy()
+                    else:
+                        self._properties[property] = value
+                elif isinstance(value, (str, int)):
+                    self._properties[property] = value
+                elif isinstance(value, list):
+                    if is_strong:
+                        # If is_strong is True, each element is an XCObject,
+                        # so it's safe to call Copy.
+                        self._properties[property] = []
+                        for item in value:
+                            self._properties[property].append(item.Copy())
+                    else:
+                        self._properties[property] = value[:]
+                elif isinstance(value, dict):
+                    self._properties[property] = value.copy()
+                else:
+                    raise TypeError(
+                        "Don't know how to copy a "
+                        + value.__class__.__name__
+                        + " object for "
+                        + property
+                        + " in "
+                        + self.__class__.__name__
+                    )
+            else:
+                self._properties[property] = value
+
+            # Set up the child's back-reference to this object.  Don't use |value|
+            # any more because it may not be right if do_copy is true.
+            if is_strong:
+                if not is_list:
+                    self._properties[property].parent = self
+                else:
+                    for item in self._properties[property]:
+                        item.parent = self
+
+    def HasProperty(self, key):
+        return key in self._properties
+
+    def GetProperty(self, key):
+        return self._properties[key]
+
+    def SetProperty(self, key, value):
+        self.UpdateProperties({key: value})
+
+    def DelProperty(self, key):
+        if key in self._properties:
+            del self._properties[key]
+
+    def AppendProperty(self, key, value):
+        # TODO(mark): Support ExtendProperty too (and make this call that)?
+
+        # Schema validation.
+        if key not in self._schema:
+            raise KeyError(key + " not in " + self.__class__.__name__)
+
+        (is_list, property_type, is_strong) = self._schema[key][0:3]
+        if not is_list:
+            raise TypeError(key + " of " + self.__class__.__name__ + " must be list")
+        if not isinstance(value, property_type):
+            raise TypeError(
+                "item of "
+                + key
+                + " of "
+                + self.__class__.__name__
+                + " must be "
+                + property_type.__name__
+                + ", not "
+                + value.__class__.__name__
+            )
+
+        # If the property doesn't exist yet, create a new empty list to receive the
+        # item.
+        self._properties[key] = self._properties.get(key, [])
+
+        # Set up the ownership link.
+        if is_strong:
+            value.parent = self
+
+        # Store the item.
+        self._properties[key].append(value)
+
+    def VerifyHasRequiredProperties(self):
+        """Ensure that all properties identified as required by the schema are
+    set.
+    """
+
+        # TODO(mark): A stronger verification mechanism is needed.  Some
+        # subclasses need to perform validation beyond what the schema can enforce.
+        for property, attributes in self._schema.items():
+            (is_list, property_type, is_strong, is_required) = attributes[0:4]
+            if is_required and property not in self._properties:
+                raise KeyError(self.__class__.__name__ + " requires " + property)
+
+    def _SetDefaultsFromSchema(self):
+        """Assign object default values according to the schema.  This will not
+    overwrite properties that have already been set."""
+
+        defaults = {}
+        for property, attributes in self._schema.items():
+            (is_list, property_type, is_strong, is_required) = attributes[0:4]
+            if (
+                is_required
+                and len(attributes) >= 5
+                and property not in self._properties
+            ):
+                default = attributes[4]
+
+                defaults[property] = default
+
+        if len(defaults) > 0:
+            # Use do_copy=True so that each new object gets its own copy of strong
+            # objects, lists, and dicts.
+            self.UpdateProperties(defaults, do_copy=True)
+
+
+class XCHierarchicalElement(XCObject):
+    """Abstract base for PBXGroup and PBXFileReference.  Not represented in a
+  project file."""
+
+    # TODO(mark): Do name and path belong here?  Probably so.
+    # If path is set and name is not, name may have a default value.  Name will
+    # be set to the basename of path, if the basename of path is different from
+    # the full value of path.  If path is already just a leaf name, name will
+    # not be set.
+    _schema = XCObject._schema.copy()
+    _schema.update(
+        {
+            "comments": [0, str, 0, 0],
+            "fileEncoding": [0, str, 0, 0],
+            "includeInIndex": [0, int, 0, 0],
+            "indentWidth": [0, int, 0, 0],
+            "lineEnding": [0, int, 0, 0],
+            "sourceTree": [0, str, 0, 1, "<group>"],
+            "tabWidth": [0, int, 0, 0],
+            "usesTabs": [0, int, 0, 0],
+            "wrapsLines": [0, int, 0, 0],
+        }
+    )
+
+    def __init__(self, properties=None, id=None, parent=None):
+        # super
+        XCObject.__init__(self, properties, id, parent)
+        if "path" in self._properties and "name" not in self._properties:
+            path = self._properties["path"]
+            name = posixpath.basename(path)
+            if name != "" and path != name:
+                self.SetProperty("name", name)
+
+        if "path" in self._properties and (
+            "sourceTree" not in self._properties
+            or self._properties["sourceTree"] == "<group>"
+        ):
+            # If the pathname begins with an Xcode variable like "$(SDKROOT)/", take
+            # the variable out and make the path be relative to that variable by
+            # assigning the variable name as the sourceTree.
+            (source_tree, path) = SourceTreeAndPathFromPath(self._properties["path"])
+            if source_tree is not None:
+                self._properties["sourceTree"] = source_tree
+            if path is not None:
+                self._properties["path"] = path
+            if (
+                source_tree is not None
+                and path is None
+                and "name" not in self._properties
+            ):
+                # The path was of the form "$(SDKROOT)" with no path following it.
+                # This object is now relative to that variable, so it has no path
+                # attribute of its own.  It does, however, keep a name.
+                del self._properties["path"]
+                self._properties["name"] = source_tree
+
+    def Name(self):
+        if "name" in self._properties:
+            return self._properties["name"]
+        elif "path" in self._properties:
+            return self._properties["path"]
+        else:
+            # This happens in the case of the root PBXGroup.
+            return None
+
+    def Hashables(self):
+        """Custom hashables for XCHierarchicalElements.
+
+    XCHierarchicalElements are special.  Generally, their hashes shouldn't
+    change if the paths don't change.  The normal XCObject implementation of
+    Hashables adds a hashable for each object, which means that if
+    the hierarchical structure changes (possibly due to changes caused when
+    TakeOverOnlyChild runs and encounters slight changes in the hierarchy),
+    the hashes will change.  For example, if a project file initially contains
+    a/b/f1 and a/b becomes collapsed into a/b, f1 will have a single parent
+    a/b.  If someone later adds a/f2 to the project file, a/b can no longer be
+    collapsed, and f1 winds up with parent b and grandparent a.  That would
+    be sufficient to change f1's hash.
+
+    To counteract this problem, hashables for all XCHierarchicalElements except
+    for the main group (which has neither a name nor a path) are taken to be
+    just the set of path components.  Because hashables are inherited from
+    parents, this provides assurance that a/b/f1 has the same set of hashables
+    whether its parent is b or a/b.
+
+    The main group is a special case.  As it is permitted to have no name or
+    path, it is permitted to use the standard XCObject hash mechanism.  This
+    is not considered a problem because there can be only one main group.
+    """
+
+        if self == self.PBXProjectAncestor()._properties["mainGroup"]:
+            # super
+            return XCObject.Hashables(self)
+
+        hashables = []
+
+        # Put the name in first, ensuring that if TakeOverOnlyChild collapses
+        # children into a top-level group like "Source", the name always goes
+        # into the list of hashables without interfering with path components.
+        if "name" in self._properties:
+            # Make it less likely for people to manipulate hashes by following the
+            # pattern of always pushing an object type value onto the list first.
+            hashables.append(self.__class__.__name__ + ".name")
+            hashables.append(self._properties["name"])
+
+        # NOTE: This still has the problem that if an absolute path is encountered,
+        # including paths with a sourceTree, they'll still inherit their parents'
+        # hashables, even though the paths aren't relative to their parents.  This
+        # is not expected to be much of a problem in practice.
+        path = self.PathFromSourceTreeAndPath()
+        if path is not None:
+            components = path.split(posixpath.sep)
+            for component in components:
+                hashables.append(self.__class__.__name__ + ".path")
+                hashables.append(component)
+
+        hashables.extend(self._hashables)
+
+        return hashables
+
+    def Compare(self, other):
+        # Allow comparison of these types.  PBXGroup has the highest sort rank;
+        # PBXVariantGroup is treated as equal to PBXFileReference.
+        valid_class_types = {
+            PBXFileReference: "file",
+            PBXGroup: "group",
+            PBXVariantGroup: "file",
+        }
+        self_type = valid_class_types[self.__class__]
+        other_type = valid_class_types[other.__class__]
+
+        if self_type == other_type:
+            # If the two objects are of the same sort rank, compare their names.
+            return cmp(self.Name(), other.Name())
+
+        # Otherwise, sort groups before everything else.
+        if self_type == "group":
+            return -1
+        return 1
+
+    def CompareRootGroup(self, other):
+        # This function should be used only to compare direct children of the
+        # containing PBXProject's mainGroup.  These groups should appear in the
+        # listed order.
+        # TODO(mark): "Build" is used by gyp.generator.xcode, perhaps the
+        # generator should have a way of influencing this list rather than having
+        # to hardcode for the generator here.
+        order = [
+            "Source",
+            "Intermediates",
+            "Projects",
+            "Frameworks",
+            "Products",
+            "Build",
+        ]
+
+        # If the groups aren't in the listed order, do a name comparison.
+        # Otherwise, groups in the listed order should come before those that
+        # aren't.
+        self_name = self.Name()
+        other_name = other.Name()
+        self_in = isinstance(self, PBXGroup) and self_name in order
+        other_in = isinstance(self, PBXGroup) and other_name in order
+        if not self_in and not other_in:
+            return self.Compare(other)
+        if self_name in order and other_name not in order:
+            return -1
+        if other_name in order and self_name not in order:
+            return 1
+
+        # If both groups are in the listed order, go by the defined order.
+        self_index = order.index(self_name)
+        other_index = order.index(other_name)
+        if self_index < other_index:
+            return -1
+        if self_index > other_index:
+            return 1
+        return 0
+
+    def PathFromSourceTreeAndPath(self):
+        # Turn the object's sourceTree and path properties into a single flat
+        # string of a form comparable to the path parameter.  If there's a
+        # sourceTree property other than "<group>", wrap it in $(...) for the
+        # comparison.
+        components = []
+        if self._properties["sourceTree"] != "<group>":
+            components.append("$(" + self._properties["sourceTree"] + ")")
+        if "path" in self._properties:
+            components.append(self._properties["path"])
+
+        if len(components) > 0:
+            return posixpath.join(*components)
+
+        return None
+
+    def FullPath(self):
+        # Returns a full path to self relative to the project file, or relative
+        # to some other source tree.  Start with self, and walk up the chain of
+        # parents prepending their paths, if any, until no more parents are
+        # available (project-relative path) or until a path relative to some
+        # source tree is found.
+        xche = self
+        path = None
+        while isinstance(xche, XCHierarchicalElement) and (
+            path is None or (not path.startswith("/") and not path.startswith("$"))
+        ):
+            this_path = xche.PathFromSourceTreeAndPath()
+            if this_path is not None and path is not None:
+                path = posixpath.join(this_path, path)
+            elif this_path is not None:
+                path = this_path
+            xche = xche.parent
+
+        return path
+
+
+class PBXGroup(XCHierarchicalElement):
+    """
+  Attributes:
+    _children_by_path: Maps pathnames of children of this PBXGroup to the
+      actual child XCHierarchicalElement objects.
+    _variant_children_by_name_and_path: Maps (name, path) tuples of
+      PBXVariantGroup children to the actual child PBXVariantGroup objects.
+  """
+
+    _schema = XCHierarchicalElement._schema.copy()
+    _schema.update(
+        {
+            "children": [1, XCHierarchicalElement, 1, 1, []],
+            "name": [0, str, 0, 0],
+            "path": [0, str, 0, 0],
+        }
+    )
+
+    def __init__(self, properties=None, id=None, parent=None):
+        # super
+        XCHierarchicalElement.__init__(self, properties, id, parent)
+        self._children_by_path = {}
+        self._variant_children_by_name_and_path = {}
+        for child in self._properties.get("children", []):
+            self._AddChildToDicts(child)
+
+    def Hashables(self):
+        # super
+        hashables = XCHierarchicalElement.Hashables(self)
+
+        # It is not sufficient to just rely on name and parent to build a unique
+        # hashable : a node could have two child PBXGroup sharing a common name.
+        # To add entropy the hashable is enhanced with the names of all its
+        # children.
+        for child in self._properties.get("children", []):
+            child_name = child.Name()
+            if child_name is not None:
+                hashables.append(child_name)
+
+        return hashables
+
+    def HashablesForChild(self):
+        # To avoid a circular reference the hashables used to compute a child id do
+        # not include the child names.
+        return XCHierarchicalElement.Hashables(self)
+
+    def _AddChildToDicts(self, child):
+        # Sets up this PBXGroup object's dicts to reference the child properly.
+        child_path = child.PathFromSourceTreeAndPath()
+        if child_path:
+            if child_path in self._children_by_path:
+                raise ValueError("Found multiple children with path " + child_path)
+            self._children_by_path[child_path] = child
+
+        if isinstance(child, PBXVariantGroup):
+            child_name = child._properties.get("name", None)
+            key = (child_name, child_path)
+            if key in self._variant_children_by_name_and_path:
+                raise ValueError(
+                    "Found multiple PBXVariantGroup children with "
+                    + "name "
+                    + str(child_name)
+                    + " and path "
+                    + str(child_path)
+                )
+            self._variant_children_by_name_and_path[key] = child
+
+    def AppendChild(self, child):
+        # Callers should use this instead of calling
+        # AppendProperty('children', child) directly because this function
+        # maintains the group's dicts.
+        self.AppendProperty("children", child)
+        self._AddChildToDicts(child)
+
+    def GetChildByName(self, name):
+        # This is not currently optimized with a dict as GetChildByPath is because
+        # it has few callers.  Most callers probably want GetChildByPath.  This
+        # function is only useful to get children that have names but no paths,
+        # which is rare.  The children of the main group ("Source", "Products",
+        # etc.) is pretty much the only case where this likely to come up.
+        #
+        # TODO(mark): Maybe this should raise an error if more than one child is
+        # present with the same name.
+        if "children" not in self._properties:
+            return None
+
+        for child in self._properties["children"]:
+            if child.Name() == name:
+                return child
+
+        return None
+
+    def GetChildByPath(self, path):
+        if not path:
+            return None
+
+        if path in self._children_by_path:
+            return self._children_by_path[path]
+
+        return None
+
+    def GetChildByRemoteObject(self, remote_object):
+        # This method is a little bit esoteric.  Given a remote_object, which
+        # should be a PBXFileReference in another project file, this method will
+        # return this group's PBXReferenceProxy object serving as a local proxy
+        # for the remote PBXFileReference.
+        #
+        # This function might benefit from a dict optimization as GetChildByPath
+        # for some workloads, but profiling shows that it's not currently a
+        # problem.
+        if "children" not in self._properties:
+            return None
+
+        for child in self._properties["children"]:
+            if not isinstance(child, PBXReferenceProxy):
+                continue
+
+            container_proxy = child._properties["remoteRef"]
+            if container_proxy._properties["remoteGlobalIDString"] == remote_object:
+                return child
+
+        return None
+
+    def AddOrGetFileByPath(self, path, hierarchical):
+        """Returns an existing or new file reference corresponding to path.
+
+    If hierarchical is True, this method will create or use the necessary
+    hierarchical group structure corresponding to path.  Otherwise, it will
+    look in and create an item in the current group only.
+
+    If an existing matching reference is found, it is returned, otherwise, a
+    new one will be created, added to the correct group, and returned.
+
+    If path identifies a directory by virtue of carrying a trailing slash,
+    this method returns a PBXFileReference of "folder" type.  If path
+    identifies a variant, by virtue of it identifying a file inside a directory
+    with an ".lproj" extension, this method returns a PBXVariantGroup
+    containing the variant named by path, and possibly other variants.  For
+    all other paths, a "normal" PBXFileReference will be returned.
+    """
+
+        # Adding or getting a directory?  Directories end with a trailing slash.
+        is_dir = False
+        if path.endswith("/"):
+            is_dir = True
+        path = posixpath.normpath(path)
+        if is_dir:
+            path = path + "/"
+
+        # Adding or getting a variant?  Variants are files inside directories
+        # with an ".lproj" extension.  Xcode uses variants for localization.  For
+        # a variant path/to/Language.lproj/MainMenu.nib, put a variant group named
+        # MainMenu.nib inside path/to, and give it a variant named Language.  In
+        # this example, grandparent would be set to path/to and parent_root would
+        # be set to Language.
+        variant_name = None
+        parent = posixpath.dirname(path)
+        grandparent = posixpath.dirname(parent)
+        parent_basename = posixpath.basename(parent)
+        (parent_root, parent_ext) = posixpath.splitext(parent_basename)
+        if parent_ext == ".lproj":
+            variant_name = parent_root
+        if grandparent == "":
+            grandparent = None
+
+        # Putting a directory inside a variant group is not currently supported.
+        assert not is_dir or variant_name is None
+
+        path_split = path.split(posixpath.sep)
+        if (
+            len(path_split) == 1
+            or ((is_dir or variant_name is not None) and len(path_split) == 2)
+            or not hierarchical
+        ):
+            # The PBXFileReference or PBXVariantGroup will be added to or gotten from
+            # this PBXGroup, no recursion necessary.
+            if variant_name is None:
+                # Add or get a PBXFileReference.
+                file_ref = self.GetChildByPath(path)
+                if file_ref is not None:
+                    assert file_ref.__class__ == PBXFileReference
+                else:
+                    file_ref = PBXFileReference({"path": path})
+                    self.AppendChild(file_ref)
+            else:
+                # Add or get a PBXVariantGroup.  The variant group name is the same
+                # as the basename (MainMenu.nib in the example above).  grandparent
+                # specifies the path to the variant group itself, and path_split[-2:]
+                # is the path of the specific variant relative to its group.
+                variant_group_name = posixpath.basename(path)
+                variant_group_ref = self.AddOrGetVariantGroupByNameAndPath(
+                    variant_group_name, grandparent
+                )
+                variant_path = posixpath.sep.join(path_split[-2:])
+                variant_ref = variant_group_ref.GetChildByPath(variant_path)
+                if variant_ref is not None:
+                    assert variant_ref.__class__ == PBXFileReference
+                else:
+                    variant_ref = PBXFileReference(
+                        {"name": variant_name, "path": variant_path}
+                    )
+                    variant_group_ref.AppendChild(variant_ref)
+                # The caller is interested in the variant group, not the specific
+                # variant file.
+                file_ref = variant_group_ref
+            return file_ref
+        else:
+            # Hierarchical recursion.  Add or get a PBXGroup corresponding to the
+            # outermost path component, and then recurse into it, chopping off that
+            # path component.
+            next_dir = path_split[0]
+            group_ref = self.GetChildByPath(next_dir)
+            if group_ref is not None:
+                assert group_ref.__class__ == PBXGroup
+            else:
+                group_ref = PBXGroup({"path": next_dir})
+                self.AppendChild(group_ref)
+            return group_ref.AddOrGetFileByPath(
+                posixpath.sep.join(path_split[1:]), hierarchical
+            )
+
+    def AddOrGetVariantGroupByNameAndPath(self, name, path):
+        """Returns an existing or new PBXVariantGroup for name and path.
+
+    If a PBXVariantGroup identified by the name and path arguments is already
+    present as a child of this object, it is returned.  Otherwise, a new
+    PBXVariantGroup with the correct properties is created, added as a child,
+    and returned.
+
+    This method will generally be called by AddOrGetFileByPath, which knows
+    when to create a variant group based on the structure of the pathnames
+    passed to it.
+    """
+
+        key = (name, path)
+        if key in self._variant_children_by_name_and_path:
+            variant_group_ref = self._variant_children_by_name_and_path[key]
+            assert variant_group_ref.__class__ == PBXVariantGroup
+            return variant_group_ref
+
+        variant_group_properties = {"name": name}
+        if path is not None:
+            variant_group_properties["path"] = path
+        variant_group_ref = PBXVariantGroup(variant_group_properties)
+        self.AppendChild(variant_group_ref)
+
+        return variant_group_ref
+
+    def TakeOverOnlyChild(self, recurse=False):
+        """If this PBXGroup has only one child and it's also a PBXGroup, take
+    it over by making all of its children this object's children.
+
+    This function will continue to take over only children when those children
+    are groups.  If there are three PBXGroups representing a, b, and c, with
+    c inside b and b inside a, and a and b have no other children, this will
+    result in a taking over both b and c, forming a PBXGroup for a/b/c.
+
+    If recurse is True, this function will recurse into children and ask them
+    to collapse themselves by taking over only children as well.  Assuming
+    an example hierarchy with files at a/b/c/d1, a/b/c/d2, and a/b/c/d3/e/f
+    (d1, d2, and f are files, the rest are groups), recursion will result in
+    a group for a/b/c containing a group for d3/e.
+    """
+
+        # At this stage, check that child class types are PBXGroup exactly,
+        # instead of using isinstance.  The only subclass of PBXGroup,
+        # PBXVariantGroup, should not participate in reparenting in the same way:
+        # reparenting by merging different object types would be wrong.
+        while (
+            len(self._properties["children"]) == 1
+            and self._properties["children"][0].__class__ == PBXGroup
+        ):
+            # Loop to take over the innermost only-child group possible.
+
+            child = self._properties["children"][0]
+
+            # Assume the child's properties, including its children.  Save a copy
+            # of this object's old properties, because they'll still be needed.
+            # This object retains its existing id and parent attributes.
+            old_properties = self._properties
+            self._properties = child._properties
+            self._children_by_path = child._children_by_path
+
+            if (
+                "sourceTree" not in self._properties
+                or self._properties["sourceTree"] == "<group>"
+            ):
+                # The child was relative to its parent.  Fix up the path.  Note that
+                # children with a sourceTree other than "<group>" are not relative to
+                # their parents, so no path fix-up is needed in that case.
+                if "path" in old_properties:
+                    if "path" in self._properties:
+                        # Both the original parent and child have paths set.
+                        self._properties["path"] = posixpath.join(
+                            old_properties["path"], self._properties["path"]
+                        )
+                    else:
+                        # Only the original parent has a path, use it.
+                        self._properties["path"] = old_properties["path"]
+                if "sourceTree" in old_properties:
+                    # The original parent had a sourceTree set, use it.
+                    self._properties["sourceTree"] = old_properties["sourceTree"]
+
+            # If the original parent had a name set, keep using it.  If the original
+            # parent didn't have a name but the child did, let the child's name
+            # live on.  If the name attribute seems unnecessary now, get rid of it.
+            if "name" in old_properties and old_properties["name"] not in (
+                None,
+                self.Name(),
+            ):
+                self._properties["name"] = old_properties["name"]
+            if (
+                "name" in self._properties
+                and "path" in self._properties
+                and self._properties["name"] == self._properties["path"]
+            ):
+                del self._properties["name"]
+
+            # Notify all children of their new parent.
+            for child in self._properties["children"]:
+                child.parent = self
+
+        # If asked to recurse, recurse.
+        if recurse:
+            for child in self._properties["children"]:
+                if child.__class__ == PBXGroup:
+                    child.TakeOverOnlyChild(recurse)
+
+    def SortGroup(self):
+        self._properties["children"] = sorted(
+            self._properties["children"], key=cmp_to_key(lambda x, y: x.Compare(y))
+        )
+
+        # Recurse.
+        for child in self._properties["children"]:
+            if isinstance(child, PBXGroup):
+                child.SortGroup()
+
+
+class XCFileLikeElement(XCHierarchicalElement):
+    # Abstract base for objects that can be used as the fileRef property of
+    # PBXBuildFile.
+
+    def PathHashables(self):
+        # A PBXBuildFile that refers to this object will call this method to
+        # obtain additional hashables specific to this XCFileLikeElement.  Don't
+        # just use this object's hashables, they're not specific and unique enough
+        # on their own (without access to the parent hashables.)  Instead, provide
+        # hashables that identify this object by path by getting its hashables as
+        # well as the hashables of ancestor XCHierarchicalElement objects.
+
+        hashables = []
+        xche = self
+        while isinstance(xche, XCHierarchicalElement):
+            xche_hashables = xche.Hashables()
+            for index, xche_hashable in enumerate(xche_hashables):
+                hashables.insert(index, xche_hashable)
+            xche = xche.parent
+        return hashables
+
+
+class XCContainerPortal(XCObject):
+    # Abstract base for objects that can be used as the containerPortal property
+    # of PBXContainerItemProxy.
+    pass
+
+
+class XCRemoteObject(XCObject):
+    # Abstract base for objects that can be used as the remoteGlobalIDString
+    # property of PBXContainerItemProxy.
+    pass
+
+
+class PBXFileReference(XCFileLikeElement, XCContainerPortal, XCRemoteObject):
+    _schema = XCFileLikeElement._schema.copy()
+    _schema.update(
+        {
+            "explicitFileType": [0, str, 0, 0],
+            "lastKnownFileType": [0, str, 0, 0],
+            "name": [0, str, 0, 0],
+            "path": [0, str, 0, 1],
+        }
+    )
+
+    # Weird output rules for PBXFileReference.
+    _should_print_single_line = True
+    # super
+    _encode_transforms = XCFileLikeElement._alternate_encode_transforms
+
+    def __init__(self, properties=None, id=None, parent=None):
+        # super
+        XCFileLikeElement.__init__(self, properties, id, parent)
+        if "path" in self._properties and self._properties["path"].endswith("/"):
+            self._properties["path"] = self._properties["path"][:-1]
+            is_dir = True
+        else:
+            is_dir = False
+
+        if (
+            "path" in self._properties
+            and "lastKnownFileType" not in self._properties
+            and "explicitFileType" not in self._properties
+        ):
+            # TODO(mark): This is the replacement for a replacement for a quick hack.
+            # It is no longer incredibly sucky, but this list needs to be extended.
+            extension_map = {
+                "a": "archive.ar",
+                "app": "wrapper.application",
+                "bdic": "file",
+                "bundle": "wrapper.cfbundle",
+                "c": "sourcecode.c.c",
+                "cc": "sourcecode.cpp.cpp",
+                "cpp": "sourcecode.cpp.cpp",
+                "css": "text.css",
+                "cxx": "sourcecode.cpp.cpp",
+                "dart": "sourcecode",
+                "dylib": "compiled.mach-o.dylib",
+                "framework": "wrapper.framework",
+                "gyp": "sourcecode",
+                "gypi": "sourcecode",
+                "h": "sourcecode.c.h",
+                "hxx": "sourcecode.cpp.h",
+                "icns": "image.icns",
+                "java": "sourcecode.java",
+                "js": "sourcecode.javascript",
+                "kext": "wrapper.kext",
+                "m": "sourcecode.c.objc",
+                "mm": "sourcecode.cpp.objcpp",
+                "nib": "wrapper.nib",
+                "o": "compiled.mach-o.objfile",
+                "pdf": "image.pdf",
+                "pl": "text.script.perl",
+                "plist": "text.plist.xml",
+                "pm": "text.script.perl",
+                "png": "image.png",
+                "py": "text.script.python",
+                "r": "sourcecode.rez",
+                "rez": "sourcecode.rez",
+                "s": "sourcecode.asm",
+                "storyboard": "file.storyboard",
+                "strings": "text.plist.strings",
+                "swift": "sourcecode.swift",
+                "ttf": "file",
+                "xcassets": "folder.assetcatalog",
+                "xcconfig": "text.xcconfig",
+                "xcdatamodel": "wrapper.xcdatamodel",
+                "xcdatamodeld": "wrapper.xcdatamodeld",
+                "xib": "file.xib",
+                "y": "sourcecode.yacc",
+            }
+
+            prop_map = {
+                "dart": "explicitFileType",
+                "gyp": "explicitFileType",
+                "gypi": "explicitFileType",
+            }
+
+            if is_dir:
+                file_type = "folder"
+                prop_name = "lastKnownFileType"
+            else:
+                basename = posixpath.basename(self._properties["path"])
+                (root, ext) = posixpath.splitext(basename)
+                # Check the map using a lowercase extension.
+                # TODO(mark): Maybe it should try with the original case first and fall
+                # back to lowercase, in case there are any instances where case
+                # matters.  There currently aren't.
+                if ext != "":
+                    ext = ext[1:].lower()
+
+                # TODO(mark): "text" is the default value, but "file" is appropriate
+                # for unrecognized files not containing text.  Xcode seems to choose
+                # based on content.
+                file_type = extension_map.get(ext, "text")
+                prop_name = prop_map.get(ext, "lastKnownFileType")
+
+            self._properties[prop_name] = file_type
+
+
+class PBXVariantGroup(PBXGroup, XCFileLikeElement):
+    """PBXVariantGroup is used by Xcode to represent localizations."""
+
+    # No additions to the schema relative to PBXGroup.
+    pass
+
+
+# PBXReferenceProxy is also an XCFileLikeElement subclass.  It is defined below
+# because it uses PBXContainerItemProxy, defined below.
+
+
+class XCBuildConfiguration(XCObject):
+    _schema = XCObject._schema.copy()
+    _schema.update(
+        {
+            "baseConfigurationReference": [0, PBXFileReference, 0, 0],
+            "buildSettings": [0, dict, 0, 1, {}],
+            "name": [0, str, 0, 1],
+        }
+    )
+
+    def HasBuildSetting(self, key):
+        return key in self._properties["buildSettings"]
+
+    def GetBuildSetting(self, key):
+        return self._properties["buildSettings"][key]
+
+    def SetBuildSetting(self, key, value):
+        # TODO(mark): If a list, copy?
+        self._properties["buildSettings"][key] = value
+
+    def AppendBuildSetting(self, key, value):
+        if key not in self._properties["buildSettings"]:
+            self._properties["buildSettings"][key] = []
+        self._properties["buildSettings"][key].append(value)
+
+    def DelBuildSetting(self, key):
+        if key in self._properties["buildSettings"]:
+            del self._properties["buildSettings"][key]
+
+    def SetBaseConfiguration(self, value):
+        self._properties["baseConfigurationReference"] = value
+
+
+class XCConfigurationList(XCObject):
+    # _configs is the default list of configurations.
+    _configs = [
+        XCBuildConfiguration({"name": "Debug"}),
+        XCBuildConfiguration({"name": "Release"}),
+    ]
+
+    _schema = XCObject._schema.copy()
+    _schema.update(
+        {
+            "buildConfigurations": [1, XCBuildConfiguration, 1, 1, _configs],
+            "defaultConfigurationIsVisible": [0, int, 0, 1, 1],
+            "defaultConfigurationName": [0, str, 0, 1, "Release"],
+        }
+    )
+
+    def Name(self):
+        return (
+            "Build configuration list for "
+            + self.parent.__class__.__name__
+            + ' "'
+            + self.parent.Name()
+            + '"'
+        )
+
+    def ConfigurationNamed(self, name):
+        """Convenience accessor to obtain an XCBuildConfiguration by name."""
+        for configuration in self._properties["buildConfigurations"]:
+            if configuration._properties["name"] == name:
+                return configuration
+
+        raise KeyError(name)
+
+    def DefaultConfiguration(self):
+        """Convenience accessor to obtain the default XCBuildConfiguration."""
+        return self.ConfigurationNamed(self._properties["defaultConfigurationName"])
+
+    def HasBuildSetting(self, key):
+        """Determines the state of a build setting in all XCBuildConfiguration
+    child objects.
+
+    If all child objects have key in their build settings, and the value is the
+    same in all child objects, returns 1.
+
+    If no child objects have the key in their build settings, returns 0.
+
+    If some, but not all, child objects have the key in their build settings,
+    or if any children have different values for the key, returns -1.
+    """
+
+        has = None
+        value = None
+        for configuration in self._properties["buildConfigurations"]:
+            configuration_has = configuration.HasBuildSetting(key)
+            if has is None:
+                has = configuration_has
+            elif has != configuration_has:
+                return -1
+
+            if configuration_has:
+                configuration_value = configuration.GetBuildSetting(key)
+                if value is None:
+                    value = configuration_value
+                elif value != configuration_value:
+                    return -1
+
+        if not has:
+            return 0
+
+        return 1
+
+    def GetBuildSetting(self, key):
+        """Gets the build setting for key.
+
+    All child XCConfiguration objects must have the same value set for the
+    setting, or a ValueError will be raised.
+    """
+
+        # TODO(mark): This is wrong for build settings that are lists.  The list
+        # contents should be compared (and a list copy returned?)
+
+        value = None
+        for configuration in self._properties["buildConfigurations"]:
+            configuration_value = configuration.GetBuildSetting(key)
+            if value is None:
+                value = configuration_value
+            else:
+                if value != configuration_value:
+                    raise ValueError("Variant values for " + key)
+
+        return value
+
+    def SetBuildSetting(self, key, value):
+        """Sets the build setting for key to value in all child
+    XCBuildConfiguration objects.
+    """
+
+        for configuration in self._properties["buildConfigurations"]:
+            configuration.SetBuildSetting(key, value)
+
+    def AppendBuildSetting(self, key, value):
+        """Appends value to the build setting for key, which is treated as a list,
+    in all child XCBuildConfiguration objects.
+    """
+
+        for configuration in self._properties["buildConfigurations"]:
+            configuration.AppendBuildSetting(key, value)
+
+    def DelBuildSetting(self, key):
+        """Deletes the build setting key from all child XCBuildConfiguration
+    objects.
+    """
+
+        for configuration in self._properties["buildConfigurations"]:
+            configuration.DelBuildSetting(key)
+
+    def SetBaseConfiguration(self, value):
+        """Sets the build configuration in all child XCBuildConfiguration objects.
+    """
+
+        for configuration in self._properties["buildConfigurations"]:
+            configuration.SetBaseConfiguration(value)
+
+
+class PBXBuildFile(XCObject):
+    _schema = XCObject._schema.copy()
+    _schema.update(
+        {
+            "fileRef": [0, XCFileLikeElement, 0, 1],
+            "settings": [0, str, 0, 0],  # hack, it's a dict
+        }
+    )
+
+    # Weird output rules for PBXBuildFile.
+    _should_print_single_line = True
+    _encode_transforms = XCObject._alternate_encode_transforms
+
+    def Name(self):
+        # Example: "main.cc in Sources"
+        return self._properties["fileRef"].Name() + " in " + self.parent.Name()
+
+    def Hashables(self):
+        # super
+        hashables = XCObject.Hashables(self)
+
+        # It is not sufficient to just rely on Name() to get the
+        # XCFileLikeElement's name, because that is not a complete pathname.
+        # PathHashables returns hashables unique enough that no two
+        # PBXBuildFiles should wind up with the same set of hashables, unless
+        # someone adds the same file multiple times to the same target.  That
+        # would be considered invalid anyway.
+        hashables.extend(self._properties["fileRef"].PathHashables())
+
+        return hashables
+
+
+class XCBuildPhase(XCObject):
+    """Abstract base for build phase classes.  Not represented in a project
+  file.
+
+  Attributes:
+    _files_by_path: A dict mapping each path of a child in the files list by
+      path (keys) to the corresponding PBXBuildFile children (values).
+    _files_by_xcfilelikeelement: A dict mapping each XCFileLikeElement (keys)
+      to the corresponding PBXBuildFile children (values).
+  """
+
+    # TODO(mark): Some build phase types, like PBXShellScriptBuildPhase, don't
+    # actually have a "files" list.  XCBuildPhase should not have "files" but
+    # another abstract subclass of it should provide this, and concrete build
+    # phase types that do have "files" lists should be derived from that new
+    # abstract subclass.  XCBuildPhase should only provide buildActionMask and
+    # runOnlyForDeploymentPostprocessing, and not files or the various
+    # file-related methods and attributes.
+
+    _schema = XCObject._schema.copy()
+    _schema.update(
+        {
+            "buildActionMask": [0, int, 0, 1, 0x7FFFFFFF],
+            "files": [1, PBXBuildFile, 1, 1, []],
+            "runOnlyForDeploymentPostprocessing": [0, int, 0, 1, 0],
+        }
+    )
+
+    def __init__(self, properties=None, id=None, parent=None):
+        # super
+        XCObject.__init__(self, properties, id, parent)
+
+        self._files_by_path = {}
+        self._files_by_xcfilelikeelement = {}
+        for pbxbuildfile in self._properties.get("files", []):
+            self._AddBuildFileToDicts(pbxbuildfile)
+
+    def FileGroup(self, path):
+        # Subclasses must override this by returning a two-element tuple.  The
+        # first item in the tuple should be the PBXGroup to which "path" should be
+        # added, either as a child or deeper descendant.  The second item should
+        # be a boolean indicating whether files should be added into hierarchical
+        # groups or one single flat group.
+        raise NotImplementedError(self.__class__.__name__ + " must implement FileGroup")
+
+    def _AddPathToDict(self, pbxbuildfile, path):
+        """Adds path to the dict tracking paths belonging to this build phase.
+
+    If the path is already a member of this build phase, raises an exception.
+    """
+
+        if path in self._files_by_path:
+            raise ValueError("Found multiple build files with path " + path)
+        self._files_by_path[path] = pbxbuildfile
+
+    def _AddBuildFileToDicts(self, pbxbuildfile, path=None):
+        """Maintains the _files_by_path and _files_by_xcfilelikeelement dicts.
+
+    If path is specified, then it is the path that is being added to the
+    phase, and pbxbuildfile must contain either a PBXFileReference directly
+    referencing that path, or it must contain a PBXVariantGroup that itself
+    contains a PBXFileReference referencing the path.
+
+    If path is not specified, either the PBXFileReference's path or the paths
+    of all children of the PBXVariantGroup are taken as being added to the
+    phase.
+
+    If the path is already present in the phase, raises an exception.
+
+    If the PBXFileReference or PBXVariantGroup referenced by pbxbuildfile
+    are already present in the phase, referenced by a different PBXBuildFile
+    object, raises an exception.  This does not raise an exception when
+    a PBXFileReference or PBXVariantGroup reappear and are referenced by the
+    same PBXBuildFile that has already introduced them, because in the case
+    of PBXVariantGroup objects, they may correspond to multiple paths that are
+    not all added simultaneously.  When this situation occurs, the path needs
+    to be added to _files_by_path, but nothing needs to change in
+    _files_by_xcfilelikeelement, and the caller should have avoided adding
+    the PBXBuildFile if it is already present in the list of children.
+    """
+
+        xcfilelikeelement = pbxbuildfile._properties["fileRef"]
+
+        paths = []
+        if path is not None:
+            # It's best when the caller provides the path.
+            if isinstance(xcfilelikeelement, PBXVariantGroup):
+                paths.append(path)
+        else:
+            # If the caller didn't provide a path, there can be either multiple
+            # paths (PBXVariantGroup) or one.
+            if isinstance(xcfilelikeelement, PBXVariantGroup):
+                for variant in xcfilelikeelement._properties["children"]:
+                    paths.append(variant.FullPath())
+            else:
+                paths.append(xcfilelikeelement.FullPath())
+
+        # Add the paths first, because if something's going to raise, the
+        # messages provided by _AddPathToDict are more useful owing to its
+        # having access to a real pathname and not just an object's Name().
+        for a_path in paths:
+            self._AddPathToDict(pbxbuildfile, a_path)
+
+        # If another PBXBuildFile references this XCFileLikeElement, there's a
+        # problem.
+        if (
+            xcfilelikeelement in self._files_by_xcfilelikeelement
+            and self._files_by_xcfilelikeelement[xcfilelikeelement] != pbxbuildfile
+        ):
+            raise ValueError(
+                "Found multiple build files for " + xcfilelikeelement.Name()
+            )
+        self._files_by_xcfilelikeelement[xcfilelikeelement] = pbxbuildfile
+
+    def AppendBuildFile(self, pbxbuildfile, path=None):
+        # Callers should use this instead of calling
+        # AppendProperty('files', pbxbuildfile) directly because this function
+        # maintains the object's dicts.  Better yet, callers can just call AddFile
+        # with a pathname and not worry about building their own PBXBuildFile
+        # objects.
+        self.AppendProperty("files", pbxbuildfile)
+        self._AddBuildFileToDicts(pbxbuildfile, path)
+
+    def AddFile(self, path, settings=None):
+        (file_group, hierarchical) = self.FileGroup(path)
+        file_ref = file_group.AddOrGetFileByPath(path, hierarchical)
+
+        if file_ref in self._files_by_xcfilelikeelement and isinstance(
+            file_ref, PBXVariantGroup
+        ):
+            # There's already a PBXBuildFile in this phase corresponding to the
+            # PBXVariantGroup.  path just provides a new variant that belongs to
+            # the group.  Add the path to the dict.
+            pbxbuildfile = self._files_by_xcfilelikeelement[file_ref]
+            self._AddBuildFileToDicts(pbxbuildfile, path)
+        else:
+            # Add a new PBXBuildFile to get file_ref into the phase.
+            if settings is None:
+                pbxbuildfile = PBXBuildFile({"fileRef": file_ref})
+            else:
+                pbxbuildfile = PBXBuildFile({"fileRef": file_ref, "settings": settings})
+            self.AppendBuildFile(pbxbuildfile, path)
+
+
+class PBXHeadersBuildPhase(XCBuildPhase):
+    # No additions to the schema relative to XCBuildPhase.
+
+    def Name(self):
+        return "Headers"
+
+    def FileGroup(self, path):
+        return self.PBXProjectAncestor().RootGroupForPath(path)
+
+
+class PBXResourcesBuildPhase(XCBuildPhase):
+    # No additions to the schema relative to XCBuildPhase.
+
+    def Name(self):
+        return "Resources"
+
+    def FileGroup(self, path):
+        return self.PBXProjectAncestor().RootGroupForPath(path)
+
+
+class PBXSourcesBuildPhase(XCBuildPhase):
+    # No additions to the schema relative to XCBuildPhase.
+
+    def Name(self):
+        return "Sources"
+
+    def FileGroup(self, path):
+        return self.PBXProjectAncestor().RootGroupForPath(path)
+
+
+class PBXFrameworksBuildPhase(XCBuildPhase):
+    # No additions to the schema relative to XCBuildPhase.
+
+    def Name(self):
+        return "Frameworks"
+
+    def FileGroup(self, path):
+        (root, ext) = posixpath.splitext(path)
+        if ext != "":
+            ext = ext[1:].lower()
+        if ext == "o":
+            # .o files are added to Xcode Frameworks phases, but conceptually aren't
+            # frameworks, they're more like sources or intermediates. Redirect them
+            # to show up in one of those other groups.
+            return self.PBXProjectAncestor().RootGroupForPath(path)
+        else:
+            return (self.PBXProjectAncestor().FrameworksGroup(), False)
+
+
+class PBXShellScriptBuildPhase(XCBuildPhase):
+    _schema = XCBuildPhase._schema.copy()
+    _schema.update(
+        {
+            "inputPaths": [1, str, 0, 1, []],
+            "name": [0, str, 0, 0],
+            "outputPaths": [1, str, 0, 1, []],
+            "shellPath": [0, str, 0, 1, "/bin/sh"],
+            "shellScript": [0, str, 0, 1],
+            "showEnvVarsInLog": [0, int, 0, 0],
+        }
+    )
+
+    def Name(self):
+        if "name" in self._properties:
+            return self._properties["name"]
+
+        return "ShellScript"
+
+
+class PBXCopyFilesBuildPhase(XCBuildPhase):
+    _schema = XCBuildPhase._schema.copy()
+    _schema.update(
+        {
+            "dstPath": [0, str, 0, 1],
+            "dstSubfolderSpec": [0, int, 0, 1],
+            "name": [0, str, 0, 0],
+        }
+    )
+
+    # path_tree_re matches "$(DIR)/path", "$(DIR)/$(DIR2)/path" or just "$(DIR)".
+    # Match group 1 is "DIR", group 3 is "path" or "$(DIR2") or "$(DIR2)/path"
+    # or None. If group 3 is "path", group 4 will be None otherwise group 4 is
+    # "DIR2" and group 6 is "path".
+    path_tree_re = re.compile(r"^\$\((.*?)\)(/(\$\((.*?)\)(/(.*)|)|(.*)|)|)$")
+
+    # path_tree_{first,second}_to_subfolder map names of Xcode variables to the
+    # associated dstSubfolderSpec property value used in a PBXCopyFilesBuildPhase
+    # object.
+    path_tree_first_to_subfolder = {
+        # Types that can be chosen via the Xcode UI.
+        "BUILT_PRODUCTS_DIR": 16,  # Products Directory
+        "BUILT_FRAMEWORKS_DIR": 10,  # Not an official Xcode macro.
+        # Existed before support for the
+        # names below was added. Maps to
+        # "Frameworks".
+    }
+
+    path_tree_second_to_subfolder = {
+        "WRAPPER_NAME": 1,  # Wrapper
+        # Although Xcode's friendly name is "Executables", the destination
+        # is demonstrably the value of the build setting
+        # EXECUTABLE_FOLDER_PATH not EXECUTABLES_FOLDER_PATH.
+        "EXECUTABLE_FOLDER_PATH": 6,  # Executables.
+        "UNLOCALIZED_RESOURCES_FOLDER_PATH": 7,  # Resources
+        "JAVA_FOLDER_PATH": 15,  # Java Resources
+        "FRAMEWORKS_FOLDER_PATH": 10,  # Frameworks
+        "SHARED_FRAMEWORKS_FOLDER_PATH": 11,  # Shared Frameworks
+        "SHARED_SUPPORT_FOLDER_PATH": 12,  # Shared Support
+        "PLUGINS_FOLDER_PATH": 13,  # PlugIns
+        # For XPC Services, Xcode sets both dstPath and dstSubfolderSpec.
+        # Note that it re-uses the BUILT_PRODUCTS_DIR value for
+        # dstSubfolderSpec. dstPath is set below.
+        "XPCSERVICES_FOLDER_PATH": 16,  # XPC Services.
+    }
+
+    def Name(self):
+        if "name" in self._properties:
+            return self._properties["name"]
+
+        return "CopyFiles"
+
+    def FileGroup(self, path):
+        return self.PBXProjectAncestor().RootGroupForPath(path)
+
+    def SetDestination(self, path):
+        """Set the dstSubfolderSpec and dstPath properties from path.
+
+    path may be specified in the same notation used for XCHierarchicalElements,
+    specifically, "$(DIR)/path".
+    """
+
+        path_tree_match = self.path_tree_re.search(path)
+        if path_tree_match:
+            path_tree = path_tree_match.group(1)
+            if path_tree in self.path_tree_first_to_subfolder:
+                subfolder = self.path_tree_first_to_subfolder[path_tree]
+                relative_path = path_tree_match.group(3)
+                if relative_path is None:
+                    relative_path = ""
+
+                if subfolder == 16 and path_tree_match.group(4) is not None:
+                    # BUILT_PRODUCTS_DIR (16) is the first element in a path whose
+                    # second element is possibly one of the variable names in
+                    # path_tree_second_to_subfolder. Xcode sets the values of all these
+                    # variables to relative paths so .gyp files must prefix them with
+                    # BUILT_PRODUCTS_DIR, e.g.
+                    # $(BUILT_PRODUCTS_DIR)/$(PLUGINS_FOLDER_PATH). Then
+                    # xcode_emulation.py can export these variables with the same values
+                    # as Xcode yet make & ninja files can determine the absolute path
+                    # to the target. Xcode uses the dstSubfolderSpec value set here
+                    # to determine the full path.
+                    #
+                    # An alternative of xcode_emulation.py setting the values to
+                    # absolute paths when exporting these variables has been
+                    # ruled out because then the values would be different
+                    # depending on the build tool.
+                    #
+                    # Another alternative is to invent new names for the variables used
+                    # to match to the subfolder indices in the second table. .gyp files
+                    # then will not need to prepend $(BUILT_PRODUCTS_DIR) because
+                    # xcode_emulation.py can set the values of those variables to
+                    # the absolute paths when exporting. This is possibly the thinking
+                    # behind BUILT_FRAMEWORKS_DIR which is used in exactly this manner.
+                    #
+                    # Requiring prepending BUILT_PRODUCTS_DIR has been chosen because
+                    # this same way could be used to specify destinations in .gyp files
+                    # that pre-date this addition to GYP. However they would only work
+                    # with the Xcode generator.
+                    # The previous version of xcode_emulation.py
+                    # does not export these variables. Such files will get the benefit
+                    # of the Xcode UI showing the proper destination name simply by
+                    # regenerating the projects with this version of GYP.
+                    path_tree = path_tree_match.group(4)
+                    relative_path = path_tree_match.group(6)
+                    separator = "/"
+
+                    if path_tree in self.path_tree_second_to_subfolder:
+                        subfolder = self.path_tree_second_to_subfolder[path_tree]
+                        if relative_path is None:
+                            relative_path = ""
+                            separator = ""
+                        if path_tree == "XPCSERVICES_FOLDER_PATH":
+                            relative_path = (
+                                "$(CONTENTS_FOLDER_PATH)/XPCServices"
+                                + separator
+                                + relative_path
+                            )
+                    else:
+                        # subfolder = 16 from above
+                        # The second element of the path is an unrecognized variable.
+                        # Include it and any remaining elements in relative_path.
+                        relative_path = path_tree_match.group(3)
+
+            else:
+                # The path starts with an unrecognized Xcode variable
+                # name like $(SRCROOT).  Xcode will still handle this
+                # as an "absolute path" that starts with the variable.
+                subfolder = 0
+                relative_path = path
+        elif path.startswith("/"):
+            # Special case.  Absolute paths are in dstSubfolderSpec 0.
+            subfolder = 0
+            relative_path = path[1:]
+        else:
+            raise ValueError(
+                f"Can't use path {path} in a {self.__class__.__name__}"
+            )
+
+        self._properties["dstPath"] = relative_path
+        self._properties["dstSubfolderSpec"] = subfolder
+
+
+class PBXBuildRule(XCObject):
+    _schema = XCObject._schema.copy()
+    _schema.update(
+        {
+            "compilerSpec": [0, str, 0, 1],
+            "filePatterns": [0, str, 0, 0],
+            "fileType": [0, str, 0, 1],
+            "isEditable": [0, int, 0, 1, 1],
+            "outputFiles": [1, str, 0, 1, []],
+            "script": [0, str, 0, 0],
+        }
+    )
+
+    def Name(self):
+        # Not very inspired, but it's what Xcode uses.
+        return self.__class__.__name__
+
+    def Hashables(self):
+        # super
+        hashables = XCObject.Hashables(self)
+
+        # Use the hashables of the weak objects that this object refers to.
+        hashables.append(self._properties["fileType"])
+        if "filePatterns" in self._properties:
+            hashables.append(self._properties["filePatterns"])
+        return hashables
+
+
+class PBXContainerItemProxy(XCObject):
+    # When referencing an item in this project file, containerPortal is the
+    # PBXProject root object of this project file.  When referencing an item in
+    # another project file, containerPortal is a PBXFileReference identifying
+    # the other project file.
+    #
+    # When serving as a proxy to an XCTarget (in this project file or another),
+    # proxyType is 1.  When serving as a proxy to a PBXFileReference (in another
+    # project file), proxyType is 2.  Type 2 is used for references to the
+    # producs of the other project file's targets.
+    #
+    # Xcode is weird about remoteGlobalIDString.  Usually, it's printed without
+    # a comment, indicating that it's tracked internally simply as a string, but
+    # sometimes it's printed with a comment (usually when the object is initially
+    # created), indicating that it's tracked as a project file object at least
+    # sometimes.  This module always tracks it as an object, but contains a hack
+    # to prevent it from printing the comment in the project file output.  See
+    # _XCKVPrint.
+    _schema = XCObject._schema.copy()
+    _schema.update(
+        {
+            "containerPortal": [0, XCContainerPortal, 0, 1],
+            "proxyType": [0, int, 0, 1],
+            "remoteGlobalIDString": [0, XCRemoteObject, 0, 1],
+            "remoteInfo": [0, str, 0, 1],
+        }
+    )
+
+    def __repr__(self):
+        props = self._properties
+        name = "{}.gyp:{}".format(props["containerPortal"].Name(), props["remoteInfo"])
+        return f"<{self.__class__.__name__} {name!r} at 0x{id(self):x}>"
+
+    def Name(self):
+        # Admittedly not the best name, but it's what Xcode uses.
+        return self.__class__.__name__
+
+    def Hashables(self):
+        # super
+        hashables = XCObject.Hashables(self)
+
+        # Use the hashables of the weak objects that this object refers to.
+        hashables.extend(self._properties["containerPortal"].Hashables())
+        hashables.extend(self._properties["remoteGlobalIDString"].Hashables())
+        return hashables
+
+
+class PBXTargetDependency(XCObject):
+    # The "target" property accepts an XCTarget object, and obviously not
+    # NoneType.  But XCTarget is defined below, so it can't be put into the
+    # schema yet.  The definition of PBXTargetDependency can't be moved below
+    # XCTarget because XCTarget's own schema references PBXTargetDependency.
+    # Python doesn't deal well with this circular relationship, and doesn't have
+    # a real way to do forward declarations.  To work around, the type of
+    # the "target" property is reset below, after XCTarget is defined.
+    #
+    # At least one of "name" and "target" is required.
+    _schema = XCObject._schema.copy()
+    _schema.update(
+        {
+            "name": [0, str, 0, 0],
+            "target": [0, None.__class__, 0, 0],
+            "targetProxy": [0, PBXContainerItemProxy, 1, 1],
+        }
+    )
+
+    def __repr__(self):
+        name = self._properties.get("name") or self._properties["target"].Name()
+        return f"<{self.__class__.__name__} {name!r} at 0x{id(self):x}>"
+
+    def Name(self):
+        # Admittedly not the best name, but it's what Xcode uses.
+        return self.__class__.__name__
+
+    def Hashables(self):
+        # super
+        hashables = XCObject.Hashables(self)
+
+        # Use the hashables of the weak objects that this object refers to.
+        hashables.extend(self._properties["targetProxy"].Hashables())
+        return hashables
+
+
+class PBXReferenceProxy(XCFileLikeElement):
+    _schema = XCFileLikeElement._schema.copy()
+    _schema.update(
+        {
+            "fileType": [0, str, 0, 1],
+            "path": [0, str, 0, 1],
+            "remoteRef": [0, PBXContainerItemProxy, 1, 1],
+        }
+    )
+
+
+class XCTarget(XCRemoteObject):
+    # An XCTarget is really just an XCObject, the XCRemoteObject thing is just
+    # to allow PBXProject to be used in the remoteGlobalIDString property of
+    # PBXContainerItemProxy.
+    #
+    # Setting a "name" property at instantiation may also affect "productName",
+    # which may in turn affect the "PRODUCT_NAME" build setting in children of
+    # "buildConfigurationList".  See __init__ below.
+    _schema = XCRemoteObject._schema.copy()
+    _schema.update(
+        {
+            "buildConfigurationList": [
+                0,
+                XCConfigurationList,
+                1,
+                1,
+                XCConfigurationList(),
+            ],
+            "buildPhases": [1, XCBuildPhase, 1, 1, []],
+            "dependencies": [1, PBXTargetDependency, 1, 1, []],
+            "name": [0, str, 0, 1],
+            "productName": [0, str, 0, 1],
+        }
+    )
+
+    def __init__(
+        self,
+        properties=None,
+        id=None,
+        parent=None,
+        force_outdir=None,
+        force_prefix=None,
+        force_extension=None,
+    ):
+        # super
+        XCRemoteObject.__init__(self, properties, id, parent)
+
+        # Set up additional defaults not expressed in the schema.  If a "name"
+        # property was supplied, set "productName" if it is not present.  Also set
+        # the "PRODUCT_NAME" build setting in each configuration, but only if
+        # the setting is not present in any build configuration.
+        if "name" in self._properties:
+            if "productName" not in self._properties:
+                self.SetProperty("productName", self._properties["name"])
+
+        if "productName" in self._properties:
+            if "buildConfigurationList" in self._properties:
+                configs = self._properties["buildConfigurationList"]
+                if configs.HasBuildSetting("PRODUCT_NAME") == 0:
+                    configs.SetBuildSetting(
+                        "PRODUCT_NAME", self._properties["productName"]
+                    )
+
+    def AddDependency(self, other):
+        pbxproject = self.PBXProjectAncestor()
+        other_pbxproject = other.PBXProjectAncestor()
+        if pbxproject == other_pbxproject:
+            # Add a dependency to another target in the same project file.
+            container = PBXContainerItemProxy(
+                {
+                    "containerPortal": pbxproject,
+                    "proxyType": 1,
+                    "remoteGlobalIDString": other,
+                    "remoteInfo": other.Name(),
+                }
+            )
+            dependency = PBXTargetDependency(
+                {"target": other, "targetProxy": container}
+            )
+            self.AppendProperty("dependencies", dependency)
+        else:
+            # Add a dependency to a target in a different project file.
+            other_project_ref = pbxproject.AddOrGetProjectReference(other_pbxproject)[1]
+            container = PBXContainerItemProxy(
+                {
+                    "containerPortal": other_project_ref,
+                    "proxyType": 1,
+                    "remoteGlobalIDString": other,
+                    "remoteInfo": other.Name(),
+                }
+            )
+            dependency = PBXTargetDependency(
+                {"name": other.Name(), "targetProxy": container}
+            )
+            self.AppendProperty("dependencies", dependency)
+
+    # Proxy all of these through to the build configuration list.
+
+    def ConfigurationNamed(self, name):
+        return self._properties["buildConfigurationList"].ConfigurationNamed(name)
+
+    def DefaultConfiguration(self):
+        return self._properties["buildConfigurationList"].DefaultConfiguration()
+
+    def HasBuildSetting(self, key):
+        return self._properties["buildConfigurationList"].HasBuildSetting(key)
+
+    def GetBuildSetting(self, key):
+        return self._properties["buildConfigurationList"].GetBuildSetting(key)
+
+    def SetBuildSetting(self, key, value):
+        return self._properties["buildConfigurationList"].SetBuildSetting(key, value)
+
+    def AppendBuildSetting(self, key, value):
+        return self._properties["buildConfigurationList"].AppendBuildSetting(key, value)
+
+    def DelBuildSetting(self, key):
+        return self._properties["buildConfigurationList"].DelBuildSetting(key)
+
+
+# Redefine the type of the "target" property.  See PBXTargetDependency._schema
+# above.
+PBXTargetDependency._schema["target"][1] = XCTarget
+
+
+class PBXNativeTarget(XCTarget):
+    # buildPhases is overridden in the schema to be able to set defaults.
+    #
+    # NOTE: Contrary to most objects, it is advisable to set parent when
+    # constructing PBXNativeTarget.  A parent of an XCTarget must be a PBXProject
+    # object.  A parent reference is required for a PBXNativeTarget during
+    # construction to be able to set up the target defaults for productReference,
+    # because a PBXBuildFile object must be created for the target and it must
+    # be added to the PBXProject's mainGroup hierarchy.
+    _schema = XCTarget._schema.copy()
+    _schema.update(
+        {
+            "buildPhases": [
+                1,
+                XCBuildPhase,
+                1,
+                1,
+                [PBXSourcesBuildPhase(), PBXFrameworksBuildPhase()],
+            ],
+            "buildRules": [1, PBXBuildRule, 1, 1, []],
+            "productReference": [0, PBXFileReference, 0, 1],
+            "productType": [0, str, 0, 1],
+        }
+    )
+
+    # Mapping from Xcode product-types to settings.  The settings are:
+    #  filetype : used for explicitFileType in the project file
+    #  prefix : the prefix for the file name
+    #  suffix : the suffix for the file name
+    _product_filetypes = {
+        "com.apple.product-type.application": ["wrapper.application", "", ".app"],
+        "com.apple.product-type.application.watchapp": [
+            "wrapper.application",
+            "",
+            ".app",
+        ],
+        "com.apple.product-type.watchkit-extension": [
+            "wrapper.app-extension",
+            "",
+            ".appex",
+        ],
+        "com.apple.product-type.app-extension": ["wrapper.app-extension", "", ".appex"],
+        "com.apple.product-type.bundle": ["wrapper.cfbundle", "", ".bundle"],
+        "com.apple.product-type.framework": ["wrapper.framework", "", ".framework"],
+        "com.apple.product-type.library.dynamic": [
+            "compiled.mach-o.dylib",
+            "lib",
+            ".dylib",
+        ],
+        "com.apple.product-type.library.static": ["archive.ar", "lib", ".a"],
+        "com.apple.product-type.tool": ["compiled.mach-o.executable", "", ""],
+        "com.apple.product-type.bundle.unit-test": ["wrapper.cfbundle", "", ".xctest"],
+        "com.apple.product-type.bundle.ui-testing": ["wrapper.cfbundle", "", ".xctest"],
+        "com.googlecode.gyp.xcode.bundle": ["compiled.mach-o.dylib", "", ".so"],
+        "com.apple.product-type.kernel-extension": ["wrapper.kext", "", ".kext"],
+    }
+
+    def __init__(
+        self,
+        properties=None,
+        id=None,
+        parent=None,
+        force_outdir=None,
+        force_prefix=None,
+        force_extension=None,
+    ):
+        # super
+        XCTarget.__init__(self, properties, id, parent)
+
+        if (
+            "productName" in self._properties
+            and "productType" in self._properties
+            and "productReference" not in self._properties
+            and self._properties["productType"] in self._product_filetypes
+        ):
+            products_group = None
+            pbxproject = self.PBXProjectAncestor()
+            if pbxproject is not None:
+                products_group = pbxproject.ProductsGroup()
+
+            if products_group is not None:
+                (filetype, prefix, suffix) = self._product_filetypes[
+                    self._properties["productType"]
+                ]
+                # Xcode does not have a distinct type for loadable modules that are
+                # pure BSD targets (not in a bundle wrapper). GYP allows such modules
+                # to be specified by setting a target type to loadable_module without
+                # having mac_bundle set. These are mapped to the pseudo-product type
+                # com.googlecode.gyp.xcode.bundle.
+                #
+                # By picking up this special type and converting it to a dynamic
+                # library (com.apple.product-type.library.dynamic) with fix-ups,
+                # single-file loadable modules can be produced.
+                #
+                # MACH_O_TYPE is changed to mh_bundle to produce the proper file type
+                # (as opposed to mh_dylib). In order for linking to succeed,
+                # DYLIB_CURRENT_VERSION and DYLIB_COMPATIBILITY_VERSION must be
+                # cleared. They are meaningless for type mh_bundle.
+                #
+                # Finally, the .so extension is forcibly applied over the default
+                # (.dylib), unless another forced extension is already selected.
+                # .dylib is plainly wrong, and .bundle is used by loadable_modules in
+                # bundle wrappers (com.apple.product-type.bundle). .so seems an odd
+                # choice because it's used as the extension on many other systems that
+                # don't distinguish between linkable shared libraries and non-linkable
+                # loadable modules, but there's precedent: Python loadable modules on
+                # Mac OS X use an .so extension.
+                if self._properties["productType"] == "com.googlecode.gyp.xcode.bundle":
+                    self._properties[
+                        "productType"
+                    ] = "com.apple.product-type.library.dynamic"
+                    self.SetBuildSetting("MACH_O_TYPE", "mh_bundle")
+                    self.SetBuildSetting("DYLIB_CURRENT_VERSION", "")
+                    self.SetBuildSetting("DYLIB_COMPATIBILITY_VERSION", "")
+                    if force_extension is None:
+                        force_extension = suffix[1:]
+
+                if (
+                    self._properties["productType"]
+                    == "com.apple.product-type-bundle.unit.test"
+                    or self._properties["productType"]
+                    == "com.apple.product-type-bundle.ui-testing"
+                ):
+                    if force_extension is None:
+                        force_extension = suffix[1:]
+
+                if force_extension is not None:
+                    # If it's a wrapper (bundle), set WRAPPER_EXTENSION.
+                    # Extension override.
+                    suffix = "." + force_extension
+                    if filetype.startswith("wrapper."):
+                        self.SetBuildSetting("WRAPPER_EXTENSION", force_extension)
+                    else:
+                        self.SetBuildSetting("EXECUTABLE_EXTENSION", force_extension)
+
+                    if filetype.startswith("compiled.mach-o.executable"):
+                        product_name = self._properties["productName"]
+                        product_name += suffix
+                        suffix = ""
+                        self.SetProperty("productName", product_name)
+                        self.SetBuildSetting("PRODUCT_NAME", product_name)
+
+                # Xcode handles most prefixes based on the target type, however there
+                # are exceptions.  If a "BSD Dynamic Library" target is added in the
+                # Xcode UI, Xcode sets EXECUTABLE_PREFIX.  This check duplicates that
+                # behavior.
+                if force_prefix is not None:
+                    prefix = force_prefix
+                if filetype.startswith("wrapper."):
+                    self.SetBuildSetting("WRAPPER_PREFIX", prefix)
+                else:
+                    self.SetBuildSetting("EXECUTABLE_PREFIX", prefix)
+
+                if force_outdir is not None:
+                    self.SetBuildSetting("TARGET_BUILD_DIR", force_outdir)
+
+                # TODO(tvl): Remove the below hack.
+                #    http://code.google.com/p/gyp/issues/detail?id=122
+
+                # Some targets include the prefix in the target_name.  These targets
+                # really should just add a product_name setting that doesn't include
+                # the prefix.  For example:
+                #  target_name = 'libevent', product_name = 'event'
+                # This check cleans up for them.
+                product_name = self._properties["productName"]
+                prefix_len = len(prefix)
+                if prefix_len and (product_name[:prefix_len] == prefix):
+                    product_name = product_name[prefix_len:]
+                    self.SetProperty("productName", product_name)
+                    self.SetBuildSetting("PRODUCT_NAME", product_name)
+
+                ref_props = {
+                    "explicitFileType": filetype,
+                    "includeInIndex": 0,
+                    "path": prefix + product_name + suffix,
+                    "sourceTree": "BUILT_PRODUCTS_DIR",
+                }
+                file_ref = PBXFileReference(ref_props)
+                products_group.AppendChild(file_ref)
+                self.SetProperty("productReference", file_ref)
+
+    def GetBuildPhaseByType(self, type):
+        if "buildPhases" not in self._properties:
+            return None
+
+        the_phase = None
+        for phase in self._properties["buildPhases"]:
+            if isinstance(phase, type):
+                # Some phases may be present in multiples in a well-formed project file,
+                # but phases like PBXSourcesBuildPhase may only be present singly, and
+                # this function is intended as an aid to GetBuildPhaseByType.  Loop
+                # over the entire list of phases and assert if more than one of the
+                # desired type is found.
+                assert the_phase is None
+                the_phase = phase
+
+        return the_phase
+
+    def HeadersPhase(self):
+        headers_phase = self.GetBuildPhaseByType(PBXHeadersBuildPhase)
+        if headers_phase is None:
+            headers_phase = PBXHeadersBuildPhase()
+
+            # The headers phase should come before the resources, sources, and
+            # frameworks phases, if any.
+            insert_at = len(self._properties["buildPhases"])
+            for index, phase in enumerate(self._properties["buildPhases"]):
+                if (
+                    isinstance(phase, PBXResourcesBuildPhase)
+                    or isinstance(phase, PBXSourcesBuildPhase)
+                    or isinstance(phase, PBXFrameworksBuildPhase)
+                ):
+                    insert_at = index
+                    break
+
+            self._properties["buildPhases"].insert(insert_at, headers_phase)
+            headers_phase.parent = self
+
+        return headers_phase
+
+    def ResourcesPhase(self):
+        resources_phase = self.GetBuildPhaseByType(PBXResourcesBuildPhase)
+        if resources_phase is None:
+            resources_phase = PBXResourcesBuildPhase()
+
+            # The resources phase should come before the sources and frameworks
+            # phases, if any.
+            insert_at = len(self._properties["buildPhases"])
+            for index, phase in enumerate(self._properties["buildPhases"]):
+                if isinstance(phase, PBXSourcesBuildPhase) or isinstance(
+                    phase, PBXFrameworksBuildPhase
+                ):
+                    insert_at = index
+                    break
+
+            self._properties["buildPhases"].insert(insert_at, resources_phase)
+            resources_phase.parent = self
+
+        return resources_phase
+
+    def SourcesPhase(self):
+        sources_phase = self.GetBuildPhaseByType(PBXSourcesBuildPhase)
+        if sources_phase is None:
+            sources_phase = PBXSourcesBuildPhase()
+            self.AppendProperty("buildPhases", sources_phase)
+
+        return sources_phase
+
+    def FrameworksPhase(self):
+        frameworks_phase = self.GetBuildPhaseByType(PBXFrameworksBuildPhase)
+        if frameworks_phase is None:
+            frameworks_phase = PBXFrameworksBuildPhase()
+            self.AppendProperty("buildPhases", frameworks_phase)
+
+        return frameworks_phase
+
+    def AddDependency(self, other):
+        # super
+        XCTarget.AddDependency(self, other)
+
+        static_library_type = "com.apple.product-type.library.static"
+        shared_library_type = "com.apple.product-type.library.dynamic"
+        framework_type = "com.apple.product-type.framework"
+        if (
+            isinstance(other, PBXNativeTarget)
+            and "productType" in self._properties
+            and self._properties["productType"] != static_library_type
+            and "productType" in other._properties
+            and (
+                other._properties["productType"] == static_library_type
+                or (
+                    (
+                        other._properties["productType"] == shared_library_type
+                        or other._properties["productType"] == framework_type
+                    )
+                    and (
+                        (not other.HasBuildSetting("MACH_O_TYPE"))
+                        or other.GetBuildSetting("MACH_O_TYPE") != "mh_bundle"
+                    )
+                )
+            )
+        ):
+
+            file_ref = other.GetProperty("productReference")
+
+            pbxproject = self.PBXProjectAncestor()
+            other_pbxproject = other.PBXProjectAncestor()
+            if pbxproject != other_pbxproject:
+                other_project_product_group = pbxproject.AddOrGetProjectReference(
+                    other_pbxproject
+                )[0]
+                file_ref = other_project_product_group.GetChildByRemoteObject(file_ref)
+
+            self.FrameworksPhase().AppendProperty(
+                "files", PBXBuildFile({"fileRef": file_ref})
+            )
+
+
+class PBXAggregateTarget(XCTarget):
+    pass
+
+
+class PBXProject(XCContainerPortal):
+    # A PBXProject is really just an XCObject, the XCContainerPortal thing is
+    # just to allow PBXProject to be used in the containerPortal property of
+    # PBXContainerItemProxy.
+    """
+
+  Attributes:
+    path: "sample.xcodeproj".  TODO(mark) Document me!
+    _other_pbxprojects: A dictionary, keyed by other PBXProject objects.  Each
+                        value is a reference to the dict in the
+                        projectReferences list associated with the keyed
+                        PBXProject.
+  """
+
+    _schema = XCContainerPortal._schema.copy()
+    _schema.update(
+        {
+            "attributes": [0, dict, 0, 0],
+            "buildConfigurationList": [
+                0,
+                XCConfigurationList,
+                1,
+                1,
+                XCConfigurationList(),
+            ],
+            "compatibilityVersion": [0, str, 0, 1, "Xcode 3.2"],
+            "hasScannedForEncodings": [0, int, 0, 1, 1],
+            "mainGroup": [0, PBXGroup, 1, 1, PBXGroup()],
+            "projectDirPath": [0, str, 0, 1, ""],
+            "projectReferences": [1, dict, 0, 0],
+            "projectRoot": [0, str, 0, 1, ""],
+            "targets": [1, XCTarget, 1, 1, []],
+        }
+    )
+
+    def __init__(self, properties=None, id=None, parent=None, path=None):
+        self.path = path
+        self._other_pbxprojects = {}
+        # super
+        return XCContainerPortal.__init__(self, properties, id, parent)
+
+    def Name(self):
+        name = self.path
+        if name[-10:] == ".xcodeproj":
+            name = name[:-10]
+        return posixpath.basename(name)
+
+    def Path(self):
+        return self.path
+
+    def Comment(self):
+        return "Project object"
+
+    def Children(self):
+        # super
+        children = XCContainerPortal.Children(self)
+
+        # Add children that the schema doesn't know about.  Maybe there's a more
+        # elegant way around this, but this is the only case where we need to own
+        # objects in a dictionary (that is itself in a list), and three lines for
+        # a one-off isn't that big a deal.
+        if "projectReferences" in self._properties:
+            for reference in self._properties["projectReferences"]:
+                children.append(reference["ProductGroup"])
+
+        return children
+
+    def PBXProjectAncestor(self):
+        return self
+
+    def _GroupByName(self, name):
+        if "mainGroup" not in self._properties:
+            self.SetProperty("mainGroup", PBXGroup())
+
+        main_group = self._properties["mainGroup"]
+        group = main_group.GetChildByName(name)
+        if group is None:
+            group = PBXGroup({"name": name})
+            main_group.AppendChild(group)
+
+        return group
+
+    # SourceGroup and ProductsGroup are created by default in Xcode's own
+    # templates.
+    def SourceGroup(self):
+        return self._GroupByName("Source")
+
+    def ProductsGroup(self):
+        return self._GroupByName("Products")
+
+    # IntermediatesGroup is used to collect source-like files that are generated
+    # by rules or script phases and are placed in intermediate directories such
+    # as DerivedSources.
+    def IntermediatesGroup(self):
+        return self._GroupByName("Intermediates")
+
+    # FrameworksGroup and ProjectsGroup are top-level groups used to collect
+    # frameworks and projects.
+    def FrameworksGroup(self):
+        return self._GroupByName("Frameworks")
+
+    def ProjectsGroup(self):
+        return self._GroupByName("Projects")
+
+    def RootGroupForPath(self, path):
+        """Returns a PBXGroup child of this object to which path should be added.
+
+    This method is intended to choose between SourceGroup and
+    IntermediatesGroup on the basis of whether path is present in a source
+    directory or an intermediates directory.  For the purposes of this
+    determination, any path located within a derived file directory such as
+    PROJECT_DERIVED_FILE_DIR is treated as being in an intermediates
+    directory.
+
+    The returned value is a two-element tuple.  The first element is the
+    PBXGroup, and the second element specifies whether that group should be
+    organized hierarchically (True) or as a single flat list (False).
+    """
+
+        # TODO(mark): make this a class variable and bind to self on call?
+        # Also, this list is nowhere near exhaustive.
+        # INTERMEDIATE_DIR and SHARED_INTERMEDIATE_DIR are used by
+        # gyp.generator.xcode.  There should probably be some way for that module
+        # to push the names in, rather than having to hard-code them here.
+        source_tree_groups = {
+            "DERIVED_FILE_DIR": (self.IntermediatesGroup, True),
+            "INTERMEDIATE_DIR": (self.IntermediatesGroup, True),
+            "PROJECT_DERIVED_FILE_DIR": (self.IntermediatesGroup, True),
+            "SHARED_INTERMEDIATE_DIR": (self.IntermediatesGroup, True),
+        }
+
+        (source_tree, path) = SourceTreeAndPathFromPath(path)
+        if source_tree is not None and source_tree in source_tree_groups:
+            (group_func, hierarchical) = source_tree_groups[source_tree]
+            group = group_func()
+            return (group, hierarchical)
+
+        # TODO(mark): make additional choices based on file extension.
+
+        return (self.SourceGroup(), True)
+
+    def AddOrGetFileInRootGroup(self, path):
+        """Returns a PBXFileReference corresponding to path in the correct group
+    according to RootGroupForPath's heuristics.
+
+    If an existing PBXFileReference for path exists, it will be returned.
+    Otherwise, one will be created and returned.
+    """
+
+        (group, hierarchical) = self.RootGroupForPath(path)
+        return group.AddOrGetFileByPath(path, hierarchical)
+
+    def RootGroupsTakeOverOnlyChildren(self, recurse=False):
+        """Calls TakeOverOnlyChild for all groups in the main group."""
+
+        for group in self._properties["mainGroup"]._properties["children"]:
+            if isinstance(group, PBXGroup):
+                group.TakeOverOnlyChild(recurse)
+
+    def SortGroups(self):
+        # Sort the children of the mainGroup (like "Source" and "Products")
+        # according to their defined order.
+        self._properties["mainGroup"]._properties["children"] = sorted(
+            self._properties["mainGroup"]._properties["children"],
+            key=cmp_to_key(lambda x, y: x.CompareRootGroup(y)),
+        )
+
+        # Sort everything else by putting group before files, and going
+        # alphabetically by name within sections of groups and files.  SortGroup
+        # is recursive.
+        for group in self._properties["mainGroup"]._properties["children"]:
+            if not isinstance(group, PBXGroup):
+                continue
+
+            if group.Name() == "Products":
+                # The Products group is a special case.  Instead of sorting
+                # alphabetically, sort things in the order of the targets that
+                # produce the products.  To do this, just build up a new list of
+                # products based on the targets.
+                products = []
+                for target in self._properties["targets"]:
+                    if not isinstance(target, PBXNativeTarget):
+                        continue
+                    product = target._properties["productReference"]
+                    # Make sure that the product is already in the products group.
+                    assert product in group._properties["children"]
+                    products.append(product)
+
+                # Make sure that this process doesn't miss anything that was already
+                # in the products group.
+                assert len(products) == len(group._properties["children"])
+                group._properties["children"] = products
+            else:
+                group.SortGroup()
+
+    def AddOrGetProjectReference(self, other_pbxproject):
+        """Add a reference to another project file (via PBXProject object) to this
+    one.
+
+    Returns [ProductGroup, ProjectRef].  ProductGroup is a PBXGroup object in
+    this project file that contains a PBXReferenceProxy object for each
+    product of each PBXNativeTarget in the other project file.  ProjectRef is
+    a PBXFileReference to the other project file.
+
+    If this project file already references the other project file, the
+    existing ProductGroup and ProjectRef are returned.  The ProductGroup will
+    still be updated if necessary.
+    """
+
+        if "projectReferences" not in self._properties:
+            self._properties["projectReferences"] = []
+
+        product_group = None
+        project_ref = None
+
+        if other_pbxproject not in self._other_pbxprojects:
+            # This project file isn't yet linked to the other one.  Establish the
+            # link.
+            product_group = PBXGroup({"name": "Products"})
+
+            # ProductGroup is strong.
+            product_group.parent = self
+
+            # There's nothing unique about this PBXGroup, and if left alone, it will
+            # wind up with the same set of hashables as all other PBXGroup objects
+            # owned by the projectReferences list.  Add the hashables of the
+            # remote PBXProject that it's related to.
+            product_group._hashables.extend(other_pbxproject.Hashables())
+
+            # The other project reports its path as relative to the same directory
+            # that this project's path is relative to.  The other project's path
+            # is not necessarily already relative to this project.  Figure out the
+            # pathname that this project needs to use to refer to the other one.
+            this_path = posixpath.dirname(self.Path())
+            projectDirPath = self.GetProperty("projectDirPath")
+            if projectDirPath:
+                if posixpath.isabs(projectDirPath[0]):
+                    this_path = projectDirPath
+                else:
+                    this_path = posixpath.join(this_path, projectDirPath)
+            other_path = gyp.common.RelativePath(other_pbxproject.Path(), this_path)
+
+            # ProjectRef is weak (it's owned by the mainGroup hierarchy).
+            project_ref = PBXFileReference(
+                {
+                    "lastKnownFileType": "wrapper.pb-project",
+                    "path": other_path,
+                    "sourceTree": "SOURCE_ROOT",
+                }
+            )
+            self.ProjectsGroup().AppendChild(project_ref)
+
+            ref_dict = {"ProductGroup": product_group, "ProjectRef": project_ref}
+            self._other_pbxprojects[other_pbxproject] = ref_dict
+            self.AppendProperty("projectReferences", ref_dict)
+
+            # Xcode seems to sort this list case-insensitively
+            self._properties["projectReferences"] = sorted(
+                self._properties["projectReferences"],
+                key=lambda x: x["ProjectRef"].Name().lower
+            )
+        else:
+            # The link already exists.  Pull out the relevnt data.
+            project_ref_dict = self._other_pbxprojects[other_pbxproject]
+            product_group = project_ref_dict["ProductGroup"]
+            project_ref = project_ref_dict["ProjectRef"]
+
+        self._SetUpProductReferences(other_pbxproject, product_group, project_ref)
+
+        inherit_unique_symroot = self._AllSymrootsUnique(other_pbxproject, False)
+        targets = other_pbxproject.GetProperty("targets")
+        if all(self._AllSymrootsUnique(t, inherit_unique_symroot) for t in targets):
+            dir_path = project_ref._properties["path"]
+            product_group._hashables.extend(dir_path)
+
+        return [product_group, project_ref]
+
+    def _AllSymrootsUnique(self, target, inherit_unique_symroot):
+        # Returns True if all configurations have a unique 'SYMROOT' attribute.
+        # The value of inherit_unique_symroot decides, if a configuration is assumed
+        # to inherit a unique 'SYMROOT' attribute from its parent, if it doesn't
+        # define an explicit value for 'SYMROOT'.
+        symroots = self._DefinedSymroots(target)
+        for s in self._DefinedSymroots(target):
+            if (
+                s is not None
+                and not self._IsUniqueSymrootForTarget(s)
+                or s is None
+                and not inherit_unique_symroot
+            ):
+                return False
+        return True if symroots else inherit_unique_symroot
+
+    def _DefinedSymroots(self, target):
+        # Returns all values for the 'SYMROOT' attribute defined in all
+        # configurations for this target. If any configuration doesn't define the
+        # 'SYMROOT' attribute, None is added to the returned set. If all
+        # configurations don't define the 'SYMROOT' attribute, an empty set is
+        # returned.
+        config_list = target.GetProperty("buildConfigurationList")
+        symroots = set()
+        for config in config_list.GetProperty("buildConfigurations"):
+            setting = config.GetProperty("buildSettings")
+            if "SYMROOT" in setting:
+                symroots.add(setting["SYMROOT"])
+            else:
+                symroots.add(None)
+        if len(symroots) == 1 and None in symroots:
+            return set()
+        return symroots
+
+    def _IsUniqueSymrootForTarget(self, symroot):
+        # This method returns True if all configurations in target contain a
+        # 'SYMROOT' attribute that is unique for the given target. A value is
+        # unique, if the Xcode macro '$SRCROOT' appears in it in any form.
+        uniquifier = ["$SRCROOT", "$(SRCROOT)"]
+        if any(x in symroot for x in uniquifier):
+            return True
+        return False
+
+    def _SetUpProductReferences(self, other_pbxproject, product_group, project_ref):
+        # TODO(mark): This only adds references to products in other_pbxproject
+        # when they don't exist in this pbxproject.  Perhaps it should also
+        # remove references from this pbxproject that are no longer present in
+        # other_pbxproject.  Perhaps it should update various properties if they
+        # change.
+        for target in other_pbxproject._properties["targets"]:
+            if not isinstance(target, PBXNativeTarget):
+                continue
+
+            other_fileref = target._properties["productReference"]
+            if product_group.GetChildByRemoteObject(other_fileref) is None:
+                # Xcode sets remoteInfo to the name of the target and not the name
+                # of its product, despite this proxy being a reference to the product.
+                container_item = PBXContainerItemProxy(
+                    {
+                        "containerPortal": project_ref,
+                        "proxyType": 2,
+                        "remoteGlobalIDString": other_fileref,
+                        "remoteInfo": target.Name(),
+                    }
+                )
+                # TODO(mark): Does sourceTree get copied straight over from the other
+                # project?  Can the other project ever have lastKnownFileType here
+                # instead of explicitFileType?  (Use it if so?)  Can path ever be
+                # unset?  (I don't think so.)  Can other_fileref have name set, and
+                # does it impact the PBXReferenceProxy if so?  These are the questions
+                # that perhaps will be answered one day.
+                reference_proxy = PBXReferenceProxy(
+                    {
+                        "fileType": other_fileref._properties["explicitFileType"],
+                        "path": other_fileref._properties["path"],
+                        "sourceTree": other_fileref._properties["sourceTree"],
+                        "remoteRef": container_item,
+                    }
+                )
+
+                product_group.AppendChild(reference_proxy)
+
+    def SortRemoteProductReferences(self):
+        # For each remote project file, sort the associated ProductGroup in the
+        # same order that the targets are sorted in the remote project file.  This
+        # is the sort order used by Xcode.
+
+        def CompareProducts(x, y, remote_products):
+            # x and y are PBXReferenceProxy objects.  Go through their associated
+            # PBXContainerItem to get the remote PBXFileReference, which will be
+            # present in the remote_products list.
+            x_remote = x._properties["remoteRef"]._properties["remoteGlobalIDString"]
+            y_remote = y._properties["remoteRef"]._properties["remoteGlobalIDString"]
+            x_index = remote_products.index(x_remote)
+            y_index = remote_products.index(y_remote)
+
+            # Use the order of each remote PBXFileReference in remote_products to
+            # determine the sort order.
+            return cmp(x_index, y_index)
+
+        for other_pbxproject, ref_dict in self._other_pbxprojects.items():
+            # Build up a list of products in the remote project file, ordered the
+            # same as the targets that produce them.
+            remote_products = []
+            for target in other_pbxproject._properties["targets"]:
+                if not isinstance(target, PBXNativeTarget):
+                    continue
+                remote_products.append(target._properties["productReference"])
+
+            # Sort the PBXReferenceProxy children according to the list of remote
+            # products.
+            product_group = ref_dict["ProductGroup"]
+            product_group._properties["children"] = sorted(
+                product_group._properties["children"],
+                key=cmp_to_key(
+                    lambda x, y, rp=remote_products: CompareProducts(x, y, rp)),
+            )
+
+
+class XCProjectFile(XCObject):
+    _schema = XCObject._schema.copy()
+    _schema.update(
+        {
+            "archiveVersion": [0, int, 0, 1, 1],
+            "classes": [0, dict, 0, 1, {}],
+            "objectVersion": [0, int, 0, 1, 46],
+            "rootObject": [0, PBXProject, 1, 1],
+        }
+    )
+
+    def ComputeIDs(self, recursive=True, overwrite=True, hash=None):
+        # Although XCProjectFile is implemented here as an XCObject, it's not a
+        # proper object in the Xcode sense, and it certainly doesn't have its own
+        # ID.  Pass through an attempt to update IDs to the real root object.
+        if recursive:
+            self._properties["rootObject"].ComputeIDs(recursive, overwrite, hash)
+
+    def Print(self, file=sys.stdout):
+        self.VerifyHasRequiredProperties()
+
+        # Add the special "objects" property, which will be caught and handled
+        # separately during printing.  This structure allows a fairly standard
+        # loop do the normal printing.
+        self._properties["objects"] = {}
+        self._XCPrint(file, 0, "// !$*UTF8*$!\n")
+        if self._should_print_single_line:
+            self._XCPrint(file, 0, "{ ")
+        else:
+            self._XCPrint(file, 0, "{\n")
+        for property, value in sorted(
+            self._properties.items()
+        ):
+            if property == "objects":
+                self._PrintObjects(file)
+            else:
+                self._XCKVPrint(file, 1, property, value)
+        self._XCPrint(file, 0, "}\n")
+        del self._properties["objects"]
+
+    def _PrintObjects(self, file):
+        if self._should_print_single_line:
+            self._XCPrint(file, 0, "objects = {")
+        else:
+            self._XCPrint(file, 1, "objects = {\n")
+
+        objects_by_class = {}
+        for object in self.Descendants():
+            if object == self:
+                continue
+            class_name = object.__class__.__name__
+            if class_name not in objects_by_class:
+                objects_by_class[class_name] = []
+            objects_by_class[class_name].append(object)
+
+        for class_name in sorted(objects_by_class):
+            self._XCPrint(file, 0, "\n")
+            self._XCPrint(file, 0, "/* Begin " + class_name + " section */\n")
+            for object in sorted(
+                objects_by_class[class_name], key=attrgetter("id")
+            ):
+                object.Print(file)
+            self._XCPrint(file, 0, "/* End " + class_name + " section */\n")
+
+        if self._should_print_single_line:
+            self._XCPrint(file, 0, "}; ")
+        else:
+            self._XCPrint(file, 1, "};\n")
diff --git a/node_modules/node-gyp/gyp/pylib/gyp/xml_fix.py b/node_modules/node-gyp/gyp/pylib/gyp/xml_fix.py
new file mode 100644
index 0000000..5301963
--- /dev/null
+++ b/node_modules/node-gyp/gyp/pylib/gyp/xml_fix.py
@@ -0,0 +1,65 @@
+# Copyright (c) 2011 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Applies a fix to CR LF TAB handling in xml.dom.
+
+Fixes this: http://code.google.com/p/chromium/issues/detail?id=76293
+Working around this: http://bugs.python.org/issue5752
+TODO(bradnelson): Consider dropping this when we drop XP support.
+"""
+
+
+import xml.dom.minidom
+
+
+def _Replacement_write_data(writer, data, is_attrib=False):
+    """Writes datachars to writer."""
+    data = data.replace("&", "&amp;").replace("<", "&lt;")
+    data = data.replace('"', "&quot;").replace(">", "&gt;")
+    if is_attrib:
+        data = data.replace("\r", "&#xD;").replace("\n", "&#xA;").replace("\t", "&#x9;")
+    writer.write(data)
+
+
+def _Replacement_writexml(self, writer, indent="", addindent="", newl=""):
+    # indent = current indentation
+    # addindent = indentation to add to higher levels
+    # newl = newline string
+    writer.write(indent + "<" + self.tagName)
+
+    attrs = self._get_attributes()
+    a_names = sorted(attrs.keys())
+
+    for a_name in a_names:
+        writer.write(' %s="' % a_name)
+        _Replacement_write_data(writer, attrs[a_name].value, is_attrib=True)
+        writer.write('"')
+    if self.childNodes:
+        writer.write(">%s" % newl)
+        for node in self.childNodes:
+            node.writexml(writer, indent + addindent, addindent, newl)
+        writer.write(f"{indent}</{self.tagName}>{newl}")
+    else:
+        writer.write("/>%s" % newl)
+
+
+class XmlFix:
+    """Object to manage temporary patching of xml.dom.minidom."""
+
+    def __init__(self):
+        # Preserve current xml.dom.minidom functions.
+        self.write_data = xml.dom.minidom._write_data
+        self.writexml = xml.dom.minidom.Element.writexml
+        # Inject replacement versions of a function and a method.
+        xml.dom.minidom._write_data = _Replacement_write_data
+        xml.dom.minidom.Element.writexml = _Replacement_writexml
+
+    def Cleanup(self):
+        if self.write_data:
+            xml.dom.minidom._write_data = self.write_data
+            xml.dom.minidom.Element.writexml = self.writexml
+            self.write_data = None
+
+    def __del__(self):
+        self.Cleanup()
diff --git a/node_modules/node-gyp/gyp/requirements_dev.txt b/node_modules/node-gyp/gyp/requirements_dev.txt
new file mode 100644
index 0000000..28ecaca
--- /dev/null
+++ b/node_modules/node-gyp/gyp/requirements_dev.txt
@@ -0,0 +1,2 @@
+flake8
+pytest
diff --git a/node_modules/node-gyp/gyp/setup.py b/node_modules/node-gyp/gyp/setup.py
new file mode 100644
index 0000000..cf9d7d2
--- /dev/null
+++ b/node_modules/node-gyp/gyp/setup.py
@@ -0,0 +1,42 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2009 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+from os import path
+
+from setuptools import setup
+
+here = path.abspath(path.dirname(__file__))
+# Get the long description from the README file
+with open(path.join(here, "README.md")) as in_file:
+    long_description = in_file.read()
+
+setup(
+    name="gyp-next",
+    version="0.10.0",
+    description="A fork of the GYP build system for use in the Node.js projects",
+    long_description=long_description,
+    long_description_content_type="text/markdown",
+    author="Node.js contributors",
+    author_email="ryzokuken@disroot.org",
+    url="https://github.com/nodejs/gyp-next",
+    package_dir={"": "pylib"},
+    packages=["gyp", "gyp.generator"],
+    entry_points={"console_scripts": ["gyp=gyp:script_main"]},
+    python_requires=">=3.6",
+    classifiers=[
+        "Development Status :: 3 - Alpha",
+        "Environment :: Console",
+        "Intended Audience :: Developers",
+        "License :: OSI Approved :: BSD License",
+        "Natural Language :: English",
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+    ],
+)
diff --git a/node_modules/node-gyp/gyp/test_gyp.py b/node_modules/node-gyp/gyp/test_gyp.py
new file mode 100644
index 0000000..9ba2641
--- /dev/null
+++ b/node_modules/node-gyp/gyp/test_gyp.py
@@ -0,0 +1,260 @@
+#!/usr/bin/env python3
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""gyptest.py -- test runner for GYP tests."""
+
+
+import argparse
+import os
+import platform
+import subprocess
+import sys
+import time
+
+
+def is_test_name(f):
+    return f.startswith("gyptest") and f.endswith(".py")
+
+
+def find_all_gyptest_files(directory):
+    result = []
+    for root, dirs, files in os.walk(directory):
+        result.extend([os.path.join(root, f) for f in files if is_test_name(f)])
+    result.sort()
+    return result
+
+
+def main(argv=None):
+    if argv is None:
+        argv = sys.argv
+
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-a", "--all", action="store_true", help="run all tests")
+    parser.add_argument("-C", "--chdir", action="store", help="change to directory")
+    parser.add_argument(
+        "-f",
+        "--format",
+        action="store",
+        default="",
+        help="run tests with the specified formats",
+    )
+    parser.add_argument(
+        "-G",
+        "--gyp_option",
+        action="append",
+        default=[],
+        help="Add -G options to the gyp command line",
+    )
+    parser.add_argument(
+        "-l", "--list", action="store_true", help="list available tests and exit"
+    )
+    parser.add_argument(
+        "-n",
+        "--no-exec",
+        action="store_true",
+        help="no execute, just print the command line",
+    )
+    parser.add_argument(
+        "--path", action="append", default=[], help="additional $PATH directory"
+    )
+    parser.add_argument(
+        "-q",
+        "--quiet",
+        action="store_true",
+        help="quiet, don't print anything unless there are failures",
+    )
+    parser.add_argument(
+        "-v",
+        "--verbose",
+        action="store_true",
+        help="print configuration info and test results.",
+    )
+    parser.add_argument("tests", nargs="*")
+    args = parser.parse_args(argv[1:])
+
+    if args.chdir:
+        os.chdir(args.chdir)
+
+    if args.path:
+        extra_path = [os.path.abspath(p) for p in args.path]
+        extra_path = os.pathsep.join(extra_path)
+        os.environ["PATH"] = extra_path + os.pathsep + os.environ["PATH"]
+
+    if not args.tests:
+        if not args.all:
+            sys.stderr.write("Specify -a to get all tests.\n")
+            return 1
+        args.tests = ["test"]
+
+    tests = []
+    for arg in args.tests:
+        if os.path.isdir(arg):
+            tests.extend(find_all_gyptest_files(os.path.normpath(arg)))
+        else:
+            if not is_test_name(os.path.basename(arg)):
+                print(arg, "is not a valid gyp test name.", file=sys.stderr)
+                sys.exit(1)
+            tests.append(arg)
+
+    if args.list:
+        for test in tests:
+            print(test)
+        sys.exit(0)
+
+    os.environ["PYTHONPATH"] = os.path.abspath("test/lib")
+
+    if args.verbose:
+        print_configuration_info()
+
+    if args.gyp_option and not args.quiet:
+        print("Extra Gyp options: %s\n" % args.gyp_option)
+
+    if args.format:
+        format_list = args.format.split(",")
+    else:
+        format_list = {
+            "aix5": ["make"],
+            "freebsd7": ["make"],
+            "freebsd8": ["make"],
+            "openbsd5": ["make"],
+            "cygwin": ["msvs"],
+            "win32": ["msvs", "ninja"],
+            "linux": ["make", "ninja"],
+            "linux2": ["make", "ninja"],
+            "linux3": ["make", "ninja"],
+            # TODO: Re-enable xcode-ninja.
+            # https://bugs.chromium.org/p/gyp/issues/detail?id=530
+            # 'darwin':   ['make', 'ninja', 'xcode', 'xcode-ninja'],
+            "darwin": ["make", "ninja", "xcode"],
+        }[sys.platform]
+
+    gyp_options = []
+    for option in args.gyp_option:
+        gyp_options += ["-G", option]
+
+    runner = Runner(format_list, tests, gyp_options, args.verbose)
+    runner.run()
+
+    if not args.quiet:
+        runner.print_results()
+
+    return 1 if runner.failures else 0
+
+
+def print_configuration_info():
+    print("Test configuration:")
+    if sys.platform == "darwin":
+        sys.path.append(os.path.abspath("test/lib"))
+        import TestMac
+
+        print(f"  Mac {platform.mac_ver()[0]} {platform.mac_ver()[2]}")
+        print(f"  Xcode {TestMac.Xcode.Version()}")
+    elif sys.platform == "win32":
+        sys.path.append(os.path.abspath("pylib"))
+        import gyp.MSVSVersion
+
+        print("  Win %s %s\n" % platform.win32_ver()[0:2])
+        print("  MSVS %s" % gyp.MSVSVersion.SelectVisualStudioVersion().Description())
+    elif sys.platform in ("linux", "linux2"):
+        print("  Linux %s" % " ".join(platform.linux_distribution()))
+    print(f"  Python {platform.python_version()}")
+    print(f"  PYTHONPATH={os.environ['PYTHONPATH']}")
+    print()
+
+
+class Runner:
+    def __init__(self, formats, tests, gyp_options, verbose):
+        self.formats = formats
+        self.tests = tests
+        self.verbose = verbose
+        self.gyp_options = gyp_options
+        self.failures = []
+        self.num_tests = len(formats) * len(tests)
+        num_digits = len(str(self.num_tests))
+        self.fmt_str = "[%%%dd/%%%dd] (%%s) %%s" % (num_digits, num_digits)
+        self.isatty = sys.stdout.isatty() and not self.verbose
+        self.env = os.environ.copy()
+        self.hpos = 0
+
+    def run(self):
+        run_start = time.time()
+
+        i = 1
+        for fmt in self.formats:
+            for test in self.tests:
+                self.run_test(test, fmt, i)
+                i += 1
+
+        if self.isatty:
+            self.erase_current_line()
+
+        self.took = time.time() - run_start
+
+    def run_test(self, test, fmt, i):
+        if self.isatty:
+            self.erase_current_line()
+
+        msg = self.fmt_str % (i, self.num_tests, fmt, test)
+        self.print_(msg)
+
+        start = time.time()
+        cmd = [sys.executable, test] + self.gyp_options
+        self.env["TESTGYP_FORMAT"] = fmt
+        proc = subprocess.Popen(
+            cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, env=self.env
+        )
+        proc.wait()
+        took = time.time() - start
+
+        stdout = proc.stdout.read().decode("utf8")
+        if proc.returncode == 2:
+            res = "skipped"
+        elif proc.returncode:
+            res = "failed"
+            self.failures.append(f"({test}) {fmt}")
+        else:
+            res = "passed"
+        res_msg = f" {res} {took:.3f}s"
+        self.print_(res_msg)
+
+        if stdout and not stdout.endswith(("PASSED\n", "NO RESULT\n")):
+            print()
+            print("\n".join(f"    {line}" for line in stdout.splitlines()))
+        elif not self.isatty:
+            print()
+
+    def print_(self, msg):
+        print(msg, end="")
+        index = msg.rfind("\n")
+        if index == -1:
+            self.hpos += len(msg)
+        else:
+            self.hpos = len(msg) - index
+        sys.stdout.flush()
+
+    def erase_current_line(self):
+        print("\b" * self.hpos + " " * self.hpos + "\b" * self.hpos, end="")
+        sys.stdout.flush()
+        self.hpos = 0
+
+    def print_results(self):
+        num_failures = len(self.failures)
+        if num_failures:
+            print()
+            if num_failures == 1:
+                print("Failed the following test:")
+            else:
+                print("Failed the following %d tests:" % num_failures)
+            print("\t" + "\n\t".join(sorted(self.failures)))
+            print()
+        print(
+            "Ran %d tests in %.3fs, %d failed."
+            % (self.num_tests, self.took, num_failures)
+        )
+        print()
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/node_modules/node-gyp/gyp/tools/README b/node_modules/node-gyp/gyp/tools/README
new file mode 100644
index 0000000..84a73d1
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/README
@@ -0,0 +1,15 @@
+pretty_vcproj:
+  Usage: pretty_vcproj.py "c:\path\to\vcproj.vcproj" [key1=value1] [key2=value2]
+
+  They key/value pair are used to resolve vsprops name.
+
+  For example, if I want to diff the base.vcproj project:
+
+  pretty_vcproj.py z:\dev\src-chrome\src\base\build\base.vcproj "$(SolutionDir)=z:\dev\src-chrome\src\chrome\\" "$(CHROMIUM_BUILD)=" "$(CHROME_BUILD_TYPE)=" > original.txt
+  pretty_vcproj.py z:\dev\src-chrome\src\base\base_gyp.vcproj "$(SolutionDir)=z:\dev\src-chrome\src\chrome\\" "$(CHROMIUM_BUILD)=" "$(CHROME_BUILD_TYPE)=" > gyp.txt
+
+  And you can use your favorite diff tool to see the changes.
+
+  Note: In the case of base.vcproj, the original vcproj is one level up the generated one.
+        I suggest you do a search and replace for '"..\' and replace it with '"' in original.txt
+        before you perform the diff.
\ No newline at end of file
diff --git a/node_modules/node-gyp/gyp/tools/Xcode/README b/node_modules/node-gyp/gyp/tools/Xcode/README
new file mode 100644
index 0000000..2492a2c
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/Xcode/README
@@ -0,0 +1,5 @@
+Specifications contains syntax formatters for Xcode 3. These do not appear to be supported yet on Xcode 4. To use these with Xcode 3 please install both the gyp.pbfilespec and gyp.xclangspec files in
+
+~/Library/Application Support/Developer/Shared/Xcode/Specifications/
+
+and restart Xcode.
\ No newline at end of file
diff --git a/node_modules/node-gyp/gyp/tools/Xcode/Specifications/gyp.pbfilespec b/node_modules/node-gyp/gyp/tools/Xcode/Specifications/gyp.pbfilespec
new file mode 100644
index 0000000..85e2e26
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/Xcode/Specifications/gyp.pbfilespec
@@ -0,0 +1,27 @@
+/*
+	gyp.pbfilespec
+	GYP source file spec for Xcode 3
+
+	There is not much documentation available regarding the format
+	of .pbfilespec files. As a starting point, see for instance the
+	outdated documentation at:
+	http://maxao.free.fr/xcode-plugin-interface/specifications.html
+	and the files in:
+	/Developer/Library/PrivateFrameworks/XcodeEdit.framework/Versions/A/Resources/
+
+	Place this file in directory:
+	~/Library/Application Support/Developer/Shared/Xcode/Specifications/
+*/
+
+(
+	{
+		Identifier = sourcecode.gyp;
+		BasedOn = sourcecode;
+		Name = "GYP Files";
+		Extensions = ("gyp", "gypi");
+		MIMETypes = ("text/gyp");
+		Language = "xcode.lang.gyp";
+		IsTextFile = YES;
+		IsSourceFile = YES;
+	}
+)
diff --git a/node_modules/node-gyp/gyp/tools/Xcode/Specifications/gyp.xclangspec b/node_modules/node-gyp/gyp/tools/Xcode/Specifications/gyp.xclangspec
new file mode 100644
index 0000000..3b3506d
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/Xcode/Specifications/gyp.xclangspec
@@ -0,0 +1,226 @@
+/*
+	Copyright (c) 2011 Google Inc. All rights reserved.
+	Use of this source code is governed by a BSD-style license that can be
+	found in the LICENSE file.
+	
+	gyp.xclangspec
+	GYP language specification for Xcode 3
+
+	There is not much documentation available regarding the format
+	of .xclangspec files. As a starting point, see for instance the
+	outdated documentation at:
+	http://maxao.free.fr/xcode-plugin-interface/specifications.html
+	and the files in:
+	/Developer/Library/PrivateFrameworks/XcodeEdit.framework/Versions/A/Resources/
+
+	Place this file in directory:
+	~/Library/Application Support/Developer/Shared/Xcode/Specifications/
+*/
+
+(
+
+    {
+        Identifier = "xcode.lang.gyp.keyword";
+        Syntax = {
+            Words = (
+                "and",
+                "or",
+                "<!",
+                "<",
+             );
+            Type = "xcode.syntax.keyword";
+        };
+    },
+
+    {
+        Identifier = "xcode.lang.gyp.target.declarator";
+        Syntax = {
+        	Words = (
+        		"'target_name'",
+        	);
+            Type = "xcode.syntax.identifier.type";
+        };
+    },
+
+	{
+		Identifier = "xcode.lang.gyp.string.singlequote";
+		Syntax = {
+			IncludeRules = (
+				"xcode.lang.string",
+				"xcode.lang.gyp.keyword",
+				"xcode.lang.number",
+			);
+			Start = "'";
+			End = "'";
+		};
+	},
+	
+	{
+		Identifier = "xcode.lang.gyp.comma";
+		Syntax = {
+			Words = ( ",", );
+			
+		};
+	},
+
+	{
+		Identifier = "xcode.lang.gyp";
+		Description = "GYP Coloring";
+		BasedOn = "xcode.lang.simpleColoring";
+		IncludeInMenu = YES;
+		Name = "GYP";
+		Syntax = {
+			Tokenizer = "xcode.lang.gyp.lexer.toplevel";
+			IncludeRules = (
+				"xcode.lang.gyp.dictionary",
+			);
+			Type = "xcode.syntax.plain";
+		};
+	},
+
+	// The following rule returns tokens to the other rules
+	{
+		Identifier = "xcode.lang.gyp.lexer";
+		Syntax = {
+			IncludeRules = (
+				"xcode.lang.gyp.comment",
+				"xcode.lang.string",
+				'xcode.lang.gyp.targetname.declarator',
+				"xcode.lang.gyp.string.singlequote",
+				"xcode.lang.number",
+				"xcode.lang.gyp.comma",
+			);
+		};
+	},
+
+	{
+		Identifier = "xcode.lang.gyp.lexer.toplevel";
+		Syntax = {
+			IncludeRules = (
+				"xcode.lang.gyp.comment",
+			);
+		};
+	},
+
+	{
+        Identifier = "xcode.lang.gyp.assignment";
+        Syntax = {
+            Tokenizer = "xcode.lang.gyp.lexer";
+            Rules = (
+            	"xcode.lang.gyp.assignment.lhs",
+            	":",
+                "xcode.lang.gyp.assignment.rhs",
+            );
+        };
+       
+    },
+    
+    {
+        Identifier = "xcode.lang.gyp.target.declaration";
+        Syntax = {
+            Tokenizer = "xcode.lang.gyp.lexer";
+            Rules = (
+                "xcode.lang.gyp.target.declarator",
+                ":",
+                "xcode.lang.gyp.target.name",
+            );
+        };
+   },
+   
+   {
+        Identifier = "xcode.lang.gyp.target.name";
+        Syntax = {
+            Tokenizer = "xcode.lang.gyp.lexer";
+            Rules = (
+                "xcode.lang.gyp.string.singlequote",
+            );
+        	Type = "xcode.syntax.definition.function";
+        };
+    },
+    
+	{
+        Identifier = "xcode.lang.gyp.assignment.lhs";
+        Syntax = {
+            Tokenizer = "xcode.lang.gyp.lexer";
+            Rules = (
+            	"xcode.lang.gyp.string.singlequote",
+            );
+         	Type = "xcode.syntax.identifier.type";
+        };
+    },
+    
+    {
+        Identifier = "xcode.lang.gyp.assignment.rhs";
+        Syntax = {
+        	Tokenizer = "xcode.lang.gyp.lexer";
+            Rules = (
+            	"xcode.lang.gyp.string.singlequote?",
+                "xcode.lang.gyp.array?",
+				"xcode.lang.gyp.dictionary?",
+				"xcode.lang.number?",
+            );
+        };
+    },
+
+	{
+		Identifier = "xcode.lang.gyp.dictionary";
+		Syntax = {
+			Tokenizer = "xcode.lang.gyp.lexer";
+			Start = "{";
+			End = "}";
+			Foldable = YES;
+			Recursive = YES;
+			IncludeRules = (
+				"xcode.lang.gyp.target.declaration",
+				"xcode.lang.gyp.assignment",
+			);
+		};
+	},
+
+	{
+		Identifier = "xcode.lang.gyp.array";
+		Syntax = {
+			Tokenizer = "xcode.lang.gyp.lexer";
+			Start = "[";
+			End = "]";
+			Foldable = YES;
+			Recursive = YES;
+			IncludeRules = (
+				"xcode.lang.gyp.array",
+				"xcode.lang.gyp.dictionary",
+				"xcode.lang.gyp.string.singlequote",
+			);
+		};
+	},
+
+    {
+        Identifier = "xcode.lang.gyp.todo.mark";
+        Syntax = {
+            StartChars = "T";
+            Match = (
+                "^\(TODO\(.*\):[ \t]+.*\)$",       // include "TODO: " in the markers list
+            );
+            // This is the order of captures. All of the match strings above need the same order.
+            CaptureTypes = (
+                "xcode.syntax.mark"
+            );
+            Type = "xcode.syntax.comment";
+        };
+    },
+
+	{
+		Identifier = "xcode.lang.gyp.comment";
+		BasedOn = "xcode.lang.comment"; // for text macros
+		Syntax = {
+			Start = "#";
+			End = "\n";
+			IncludeRules = (
+				"xcode.lang.url",
+				"xcode.lang.url.mail",
+				"xcode.lang.comment.mark",
+				"xcode.lang.gyp.todo.mark",
+			);
+			Type = "xcode.syntax.comment";
+		};
+	},
+)
diff --git a/node_modules/node-gyp/gyp/tools/emacs/README b/node_modules/node-gyp/gyp/tools/emacs/README
new file mode 100644
index 0000000..eeef39f
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/emacs/README
@@ -0,0 +1,12 @@
+How to install gyp-mode for emacs:
+
+Add the following to your ~/.emacs (replace ... with the path to your gyp
+checkout).
+
+(setq load-path (cons ".../tools/emacs" load-path))
+(require 'gyp)
+
+Restart emacs (or eval-region the added lines) and you should be all set.
+
+Please note that ert is required for running the tests, which is included in
+Emacs 24, or available separately from https://github.com/ohler/ert
diff --git a/node_modules/node-gyp/gyp/tools/emacs/gyp-tests.el b/node_modules/node-gyp/gyp/tools/emacs/gyp-tests.el
new file mode 100644
index 0000000..07afc58
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/emacs/gyp-tests.el
@@ -0,0 +1,63 @@
+;;; gyp-tests.el - unit tests for gyp-mode.
+
+;; Copyright (c) 2012 Google Inc. All rights reserved.
+;; Use of this source code is governed by a BSD-style license that can be
+;; found in the LICENSE file.
+
+;; The recommended way to run these tests is to run them from the command-line,
+;; with the run-unit-tests.sh script.
+
+(require 'cl)
+(require 'ert)
+(require 'gyp)
+
+(defconst samples (directory-files "testdata" t ".gyp$")
+  "List of golden samples to check")
+
+(defun fontify (filename)
+  (with-temp-buffer
+    (insert-file-contents-literally filename)
+    (gyp-mode)
+    (font-lock-fontify-buffer)
+    (buffer-string)))
+
+(defun read-golden-sample (filename)
+  (with-temp-buffer
+    (insert-file-contents-literally (concat filename ".fontified"))
+    (read (current-buffer))))
+
+(defun equivalent-face (face)
+  "For the purposes of face comparison, we're not interested in the
+   differences between certain faces. For example, the difference between
+   font-lock-comment-delimiter and font-lock-comment-face."
+  (cl-case face
+    ((font-lock-comment-delimiter-face) font-lock-comment-face)
+    (t face)))
+
+(defun text-face-properties (s)
+  "Extract the text properties from s"
+  (let ((result (list t)))
+    (dotimes (i (length s))
+      (setq result (cons (equivalent-face (get-text-property i 'face s))
+                         result)))
+    (nreverse result)))
+
+(ert-deftest test-golden-samples ()
+  "Check that fontification produces the same results as the golden samples"
+  (dolist (sample samples)
+    (let ((golden (read-golden-sample sample))
+          (fontified (fontify sample)))
+      (should (equal golden fontified))
+      (should (equal (text-face-properties golden)
+                     (text-face-properties fontified))))))
+
+(defun create-golden-sample (filename)
+  "Create a golden sample by fontifying filename and writing out the printable
+   representation of the fontified buffer (with text properties) to the
+   FILENAME.fontified"
+  (with-temp-file (concat filename ".fontified")
+    (print (fontify filename) (current-buffer))))
+
+(defun create-golden-samples ()
+  "Recreate the golden samples"
+  (dolist (sample samples) (create-golden-sample sample)))
diff --git a/node_modules/node-gyp/gyp/tools/emacs/gyp.el b/node_modules/node-gyp/gyp/tools/emacs/gyp.el
new file mode 100644
index 0000000..042ff3a
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/emacs/gyp.el
@@ -0,0 +1,275 @@
+;;; gyp.el - font-lock-mode support for gyp files.
+
+;; Copyright (c) 2012 Google Inc. All rights reserved.
+;; Use of this source code is governed by a BSD-style license that can be
+;; found in the LICENSE file.
+
+;; Put this somewhere in your load-path and
+;; (require 'gyp)
+
+(require 'python)
+(require 'cl)
+
+(when (string-match "python-mode.el" (symbol-file 'python-mode 'defun))
+  (error (concat "python-mode must be loaded from python.el (bundled with "
+                 "recent emacsen), not from the older and less maintained "
+                 "python-mode.el")))
+
+(defadvice python-indent-calculate-levels (after gyp-outdent-closing-parens
+                                                 activate)
+  "De-indent closing parens, braces, and brackets in gyp-mode."
+  (when (and (eq major-mode 'gyp-mode)
+             (string-match "^ *[])}][],)}]* *$"
+                           (buffer-substring-no-properties
+                            (line-beginning-position) (line-end-position))))
+    (setf (first python-indent-levels)
+          (- (first python-indent-levels) python-continuation-offset))))
+
+(defadvice python-indent-guess-indent-offset (around
+                                              gyp-indent-guess-indent-offset
+                                              activate)
+  "Guess correct indent offset in gyp-mode."
+  (or (and (not (eq major-mode 'gyp-mode))
+           ad-do-it)
+      (save-excursion
+        (save-restriction
+          (widen)
+          (goto-char (point-min))
+          ;; Find first line ending with an opening brace that is not a comment.
+          (or (and (re-search-forward "\\(^[[{]$\\|^.*[^#].*[[{]$\\)")
+                   (forward-line)
+                   (/= (current-indentation) 0)
+                   (set (make-local-variable 'python-indent-offset)
+                        (current-indentation))
+                   (set (make-local-variable 'python-continuation-offset)
+                        (current-indentation)))
+              (message "Can't guess gyp indent offset, using default: %s"
+                       python-continuation-offset))))))
+
+(define-derived-mode gyp-mode python-mode "Gyp"
+  "Major mode for editing .gyp files. See http://code.google.com/p/gyp/"
+  ;; gyp-parse-history is a stack of (POSITION . PARSE-STATE) tuples,
+  ;; with greater positions at the top of the stack. PARSE-STATE
+  ;; is a list of section symbols (see gyp-section-name and gyp-parse-to)
+  ;; with most nested section symbol at the front of the list.
+  (set (make-local-variable 'gyp-parse-history) '((1 . (list))))
+  (gyp-add-font-lock-keywords))
+
+(defun gyp-set-indentation ()
+  "Hook function to configure python indentation to suit gyp mode."
+  (set (make-local-variable 'python-indent-offset) 2)
+  (set (make-local-variable 'python-continuation-offset) 2)
+  (set (make-local-variable 'python-indent-guess-indent-offset) t)
+  (python-indent-guess-indent-offset))
+
+(add-hook 'gyp-mode-hook 'gyp-set-indentation)
+
+(add-to-list 'auto-mode-alist '("\\.gyp\\'" . gyp-mode))
+(add-to-list 'auto-mode-alist '("\\.gypi\\'" . gyp-mode))
+(add-to-list 'auto-mode-alist '("/\\.gclient\\'" . gyp-mode))
+
+;;; Font-lock support
+
+(defconst gyp-dependencies-regexp
+  (regexp-opt (list "dependencies" "export_dependent_settings"))
+  "Regular expression to introduce 'dependencies' section")
+
+(defconst gyp-sources-regexp
+  (regexp-opt (list "action" "files" "include_dirs" "includes" "inputs"
+                    "libraries" "outputs" "sources"))
+  "Regular expression to introduce 'sources' sections")
+
+(defconst gyp-conditions-regexp
+  (regexp-opt (list "conditions" "target_conditions"))
+  "Regular expression to introduce conditions sections")
+
+(defconst gyp-variables-regexp
+  "^variables"
+  "Regular expression to introduce variables sections")
+
+(defconst gyp-defines-regexp
+  "^defines"
+  "Regular expression to introduce 'defines' sections")
+
+(defconst gyp-targets-regexp
+  "^targets"
+  "Regular expression to introduce 'targets' sections")
+
+(defun gyp-section-name (section)
+  "Map the sections we are interested in from SECTION to symbol.
+
+   SECTION is a string from the buffer that introduces a section.  The result is
+   a symbol representing the kind of section.
+
+   This allows us to treat (for the purposes of font-lock) several different
+   section names as the same kind of section. For example, a 'sources section
+   can be introduced by the 'sources', 'inputs', 'outputs' keyword.
+
+   'other is the default section kind when a more specific match is not made."
+  (cond ((string-match-p gyp-dependencies-regexp section) 'dependencies)
+        ((string-match-p gyp-sources-regexp section) 'sources)
+        ((string-match-p gyp-variables-regexp section) 'variables)
+        ((string-match-p gyp-conditions-regexp section) 'conditions)
+        ((string-match-p gyp-targets-regexp section) 'targets)
+        ((string-match-p gyp-defines-regexp section) 'defines)
+        (t 'other)))
+
+(defun gyp-invalidate-parse-states-after (target-point)
+  "Erase any parse information after target-point."
+  (while (> (caar gyp-parse-history) target-point)
+    (setq gyp-parse-history (cdr gyp-parse-history))))
+
+(defun gyp-parse-point ()
+  "The point of the last parse state added by gyp-parse-to."
+  (caar gyp-parse-history))
+
+(defun gyp-parse-sections ()
+  "A list of section symbols holding at the last parse state point."
+  (cdar gyp-parse-history))
+
+(defun gyp-inside-dictionary-p ()
+  "Predicate returning true if the parser is inside a dictionary."
+  (not (eq (cadar gyp-parse-history) 'list)))
+
+(defun gyp-add-parse-history (point sections)
+  "Add parse state SECTIONS to the parse history at POINT so that parsing can be
+   resumed instantly."
+  (while (>= (caar gyp-parse-history) point)
+    (setq gyp-parse-history (cdr gyp-parse-history)))
+  (setq gyp-parse-history (cons (cons point sections) gyp-parse-history)))
+
+(defun gyp-parse-to (target-point)
+  "Parses from (point) to TARGET-POINT adding the parse state information to
+   gyp-parse-state-history. Parsing stops if TARGET-POINT is reached or if a
+   string literal has been parsed. Returns nil if no further parsing can be
+   done, otherwise returns the position of the start of a parsed string, leaving
+   the point at the end of the string."
+  (let ((parsing t)
+        string-start)
+    (while parsing
+      (setq string-start nil)
+      ;; Parse up to a character that starts a sexp, or if the nesting
+      ;; level decreases.
+      (let ((state (parse-partial-sexp (gyp-parse-point)
+                                       target-point
+                                       -1
+                                       t))
+            (sections (gyp-parse-sections)))
+        (if (= (nth 0 state) -1)
+            (setq sections (cdr sections)) ; pop out a level
+          (cond ((looking-at-p "['\"]") ; a string
+                 (setq string-start (point))
+                 (goto-char (scan-sexps (point) 1))
+                 (if (gyp-inside-dictionary-p)
+                     ;; Look for sections inside a dictionary
+                     (let ((section (gyp-section-name
+                                     (buffer-substring-no-properties
+                                      (+ 1 string-start)
+                                      (- (point) 1)))))
+                       (setq sections (cons section (cdr sections)))))
+                 ;; Stop after the string so it can be fontified.
+                 (setq target-point (point)))
+                ((looking-at-p "{")
+                 ;; Inside a dictionary. Increase nesting.
+                 (forward-char 1)
+                 (setq sections (cons 'unknown sections)))
+                ((looking-at-p "\\[")
+                 ;; Inside a list. Increase nesting
+                 (forward-char 1)
+                 (setq sections (cons 'list sections)))
+                ((not (eobp))
+                 ;; other
+                 (forward-char 1))))
+        (gyp-add-parse-history (point) sections)
+        (setq parsing (< (point) target-point))))
+    string-start))
+
+(defun gyp-section-at-point ()
+  "Transform the last parse state, which is a list of nested sections and return
+   the section symbol that should be used to determine font-lock information for
+   the string. Can return nil indicating the string should not have any attached
+   section."
+  (let ((sections (gyp-parse-sections)))
+    (cond
+     ((eq (car sections) 'conditions)
+      ;; conditions can occur in a variables section, but we still want to
+      ;; highlight it as a keyword.
+      nil)
+     ((and (eq (car sections) 'list)
+           (eq (cadr sections) 'list))
+      ;; conditions and sources can have items in [[ ]]
+      (caddr sections))
+     (t (cadr sections)))))
+
+(defun gyp-section-match (limit)
+  "Parse from (point) to LIMIT returning by means of match data what was
+   matched. The group of the match indicates what style font-lock should apply.
+   See also `gyp-add-font-lock-keywords'."
+  (gyp-invalidate-parse-states-after (point))
+  (let ((group nil)
+        (string-start t))
+    (while (and (< (point) limit)
+                (not group)
+                string-start)
+      (setq string-start (gyp-parse-to limit))
+      (if string-start
+          (setq group (cl-case (gyp-section-at-point)
+                        ('dependencies 1)
+                        ('variables 2)
+                        ('conditions 2)
+                        ('sources 3)
+                        ('defines 4)
+                        (nil nil)))))
+    (if group
+        (progn
+          ;; Set the match data to indicate to the font-lock mechanism the
+          ;; highlighting to be performed.
+          (set-match-data (append (list string-start (point))
+                                  (make-list (* (1- group) 2) nil)
+                                  (list (1+ string-start) (1- (point)))))
+          t))))
+
+;;; Please see http://code.google.com/p/gyp/wiki/GypLanguageSpecification for
+;;; canonical list of keywords.
+(defun gyp-add-font-lock-keywords ()
+  "Add gyp-mode keywords to font-lock mechanism."
+  ;; TODO(jknotten): Move all the keyword highlighting into gyp-section-match
+  ;; so that we can do the font-locking in a single font-lock pass.
+  (font-lock-add-keywords
+   nil
+   (list
+    ;; Top-level keywords
+    (list (concat "['\"]\\("
+              (regexp-opt (list "action" "action_name" "actions" "cflags"
+                                "cflags_cc" "conditions" "configurations"
+                                "copies" "defines" "dependencies" "destination"
+                                "direct_dependent_settings"
+                                "export_dependent_settings" "extension" "files"
+                                "include_dirs" "includes" "inputs" "ldflags" "libraries"
+                                "link_settings" "mac_bundle" "message"
+                                "msvs_external_rule" "outputs" "product_name"
+                                "process_outputs_as_sources" "rules" "rule_name"
+                                "sources" "suppress_wildcard"
+                                "target_conditions" "target_defaults"
+                                "target_defines" "target_name" "toolsets"
+                                "targets" "type" "variables" "xcode_settings"))
+              "[!/+=]?\\)") 1 'font-lock-keyword-face t)
+    ;; Type of target
+    (list (concat "['\"]\\("
+              (regexp-opt (list "loadable_module" "static_library"
+                                "shared_library" "executable" "none"))
+              "\\)") 1 'font-lock-type-face t)
+    (list "\\(?:target\\|action\\)_name['\"]\\s-*:\\s-*['\"]\\([^ '\"]*\\)" 1
+          'font-lock-function-name-face t)
+    (list 'gyp-section-match
+          (list 1 'font-lock-function-name-face t t) ; dependencies
+          (list 2 'font-lock-variable-name-face t t) ; variables, conditions
+          (list 3 'font-lock-constant-face t t) ; sources
+          (list 4 'font-lock-preprocessor-face t t)) ; preprocessor
+    ;; Variable expansion
+    (list "<@?(\\([^\n )]+\\))" 1 'font-lock-variable-name-face t)
+    ;; Command expansion
+    (list "<!@?(\\([^\n )]+\\))" 1 'font-lock-variable-name-face t)
+    )))
+
+(provide 'gyp)
diff --git a/node_modules/node-gyp/gyp/tools/emacs/run-unit-tests.sh b/node_modules/node-gyp/gyp/tools/emacs/run-unit-tests.sh
new file mode 100644
index 0000000..6e62b9b
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/emacs/run-unit-tests.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+emacs --no-site-file --no-init-file --batch \
+      --load ert.el --load gyp.el --load gyp-tests.el \
+      -f ert-run-tests-batch-and-exit
diff --git a/node_modules/node-gyp/gyp/tools/emacs/testdata/media.gyp b/node_modules/node-gyp/gyp/tools/emacs/testdata/media.gyp
new file mode 100644
index 0000000..29300fe
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/emacs/testdata/media.gyp
@@ -0,0 +1,1105 @@
+# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+  'variables': {
+    'chromium_code': 1,
+    # Override to dynamically link the PulseAudio library.
+    'use_pulseaudio%': 0,
+    # Override to dynamically link the cras (ChromeOS audio) library.
+    'use_cras%': 0,
+  },
+  'targets': [
+    {
+      'target_name': 'media',
+      'type': '<(component)',
+      'dependencies': [
+        'yuv_convert',
+        '../base/base.gyp:base',
+        '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
+        '../build/temp_gyp/googleurl.gyp:googleurl',
+        '../crypto/crypto.gyp:crypto',
+        '../third_party/openmax/openmax.gyp:il',
+        '../ui/ui.gyp:ui',
+      ],
+      'defines': [
+        'MEDIA_IMPLEMENTATION',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'audio/android/audio_manager_android.cc',
+        'audio/android/audio_manager_android.h',
+        'audio/android/audio_track_output_android.cc',
+        'audio/android/audio_track_output_android.h',
+        'audio/android/opensles_input.cc',
+        'audio/android/opensles_input.h',
+        'audio/android/opensles_output.cc',
+        'audio/android/opensles_output.h',
+        'audio/async_socket_io_handler.h',
+        'audio/async_socket_io_handler_posix.cc',
+        'audio/async_socket_io_handler_win.cc',
+        'audio/audio_buffers_state.cc',
+        'audio/audio_buffers_state.h',
+        'audio/audio_io.h',
+        'audio/audio_input_controller.cc',
+        'audio/audio_input_controller.h',
+        'audio/audio_input_stream_impl.cc',
+        'audio/audio_input_stream_impl.h',
+        'audio/audio_device_name.cc',
+        'audio/audio_device_name.h',
+        'audio/audio_manager.cc',
+        'audio/audio_manager.h',
+        'audio/audio_manager_base.cc',
+        'audio/audio_manager_base.h',
+        'audio/audio_output_controller.cc',
+        'audio/audio_output_controller.h',
+        'audio/audio_output_dispatcher.cc',
+        'audio/audio_output_dispatcher.h',
+        'audio/audio_output_dispatcher_impl.cc',
+        'audio/audio_output_dispatcher_impl.h',
+        'audio/audio_output_mixer.cc',
+        'audio/audio_output_mixer.h',
+        'audio/audio_output_proxy.cc',
+        'audio/audio_output_proxy.h',
+        'audio/audio_parameters.cc',
+        'audio/audio_parameters.h',
+        'audio/audio_util.cc',
+        'audio/audio_util.h',
+        'audio/cross_process_notification.cc',
+        'audio/cross_process_notification.h',
+        'audio/cross_process_notification_win.cc',
+        'audio/cross_process_notification_posix.cc',
+        'audio/fake_audio_input_stream.cc',
+        'audio/fake_audio_input_stream.h',
+        'audio/fake_audio_output_stream.cc',
+        'audio/fake_audio_output_stream.h',
+        'audio/linux/audio_manager_linux.cc',
+        'audio/linux/audio_manager_linux.h',
+        'audio/linux/alsa_input.cc',
+        'audio/linux/alsa_input.h',
+        'audio/linux/alsa_output.cc',
+        'audio/linux/alsa_output.h',
+        'audio/linux/alsa_util.cc',
+        'audio/linux/alsa_util.h',
+        'audio/linux/alsa_wrapper.cc',
+        'audio/linux/alsa_wrapper.h',
+        'audio/linux/cras_output.cc',
+        'audio/linux/cras_output.h',
+        'audio/openbsd/audio_manager_openbsd.cc',
+        'audio/openbsd/audio_manager_openbsd.h',
+        'audio/mac/audio_input_mac.cc',
+        'audio/mac/audio_input_mac.h',
+        'audio/mac/audio_low_latency_input_mac.cc',
+        'audio/mac/audio_low_latency_input_mac.h',
+        'audio/mac/audio_low_latency_output_mac.cc',
+        'audio/mac/audio_low_latency_output_mac.h',
+        'audio/mac/audio_manager_mac.cc',
+        'audio/mac/audio_manager_mac.h',
+        'audio/mac/audio_output_mac.cc',
+        'audio/mac/audio_output_mac.h',
+        'audio/null_audio_sink.cc',
+        'audio/null_audio_sink.h',
+        'audio/pulse/pulse_output.cc',
+        'audio/pulse/pulse_output.h',
+        'audio/sample_rates.cc',
+        'audio/sample_rates.h',
+        'audio/simple_sources.cc',
+        'audio/simple_sources.h',
+        'audio/win/audio_low_latency_input_win.cc',
+        'audio/win/audio_low_latency_input_win.h',
+        'audio/win/audio_low_latency_output_win.cc',
+        'audio/win/audio_low_latency_output_win.h',
+        'audio/win/audio_manager_win.cc',
+        'audio/win/audio_manager_win.h',
+        'audio/win/avrt_wrapper_win.cc',
+        'audio/win/avrt_wrapper_win.h',
+        'audio/win/device_enumeration_win.cc',
+        'audio/win/device_enumeration_win.h',
+        'audio/win/wavein_input_win.cc',
+        'audio/win/wavein_input_win.h',
+        'audio/win/waveout_output_win.cc',
+        'audio/win/waveout_output_win.h',
+        'base/android/media_jni_registrar.cc',
+        'base/android/media_jni_registrar.h',
+        'base/audio_decoder.cc',
+        'base/audio_decoder.h',
+        'base/audio_decoder_config.cc',
+        'base/audio_decoder_config.h',
+        'base/audio_renderer.h',
+        'base/audio_renderer_mixer.cc',
+        'base/audio_renderer_mixer.h',
+        'base/audio_renderer_mixer_input.cc',
+        'base/audio_renderer_mixer_input.h',
+        'base/bitstream_buffer.h',
+        'base/buffers.cc',
+        'base/buffers.h',
+        'base/byte_queue.cc',
+        'base/byte_queue.h',
+        'base/channel_layout.cc',
+        'base/channel_layout.h',
+        'base/clock.cc',
+        'base/clock.h',
+        'base/composite_filter.cc',
+        'base/composite_filter.h',
+        'base/data_buffer.cc',
+        'base/data_buffer.h',
+        'base/data_source.cc',
+        'base/data_source.h',
+        'base/decoder_buffer.cc',
+        'base/decoder_buffer.h',
+        'base/decrypt_config.cc',
+        'base/decrypt_config.h',
+        'base/decryptor.h',
+        'base/decryptor_client.h',
+        'base/demuxer.cc',
+        'base/demuxer.h',
+        'base/demuxer_stream.cc',
+        'base/demuxer_stream.h',
+        'base/djb2.cc',
+        'base/djb2.h',
+        'base/filter_collection.cc',
+        'base/filter_collection.h',
+        'base/filter_host.h',
+        'base/filters.cc',
+        'base/filters.h',
+        'base/h264_bitstream_converter.cc',
+        'base/h264_bitstream_converter.h',
+        'base/media.h',
+        'base/media_android.cc',
+        'base/media_export.h',
+        'base/media_log.cc',
+        'base/media_log.h',
+        'base/media_log_event.h',
+        'base/media_posix.cc',
+        'base/media_switches.cc',
+        'base/media_switches.h',
+        'base/media_win.cc',
+        'base/message_loop_factory.cc',
+        'base/message_loop_factory.h',
+        'base/pipeline.cc',
+        'base/pipeline.h',
+        'base/pipeline_status.cc',
+        'base/pipeline_status.h',
+        'base/ranges.cc',
+        'base/ranges.h',
+        'base/seekable_buffer.cc',
+        'base/seekable_buffer.h',
+        'base/state_matrix.cc',
+        'base/state_matrix.h',
+        'base/stream_parser.cc',
+        'base/stream_parser.h',
+        'base/stream_parser_buffer.cc',
+        'base/stream_parser_buffer.h',
+        'base/video_decoder.cc',
+        'base/video_decoder.h',
+        'base/video_decoder_config.cc',
+        'base/video_decoder_config.h',
+        'base/video_frame.cc',
+        'base/video_frame.h',
+        'base/video_renderer.h',
+        'base/video_util.cc',
+        'base/video_util.h',
+        'crypto/aes_decryptor.cc',
+        'crypto/aes_decryptor.h',
+        'ffmpeg/ffmpeg_common.cc',
+        'ffmpeg/ffmpeg_common.h',
+        'ffmpeg/file_protocol.cc',
+        'ffmpeg/file_protocol.h',
+        'filters/audio_file_reader.cc',
+        'filters/audio_file_reader.h',
+        'filters/audio_renderer_algorithm.cc',
+        'filters/audio_renderer_algorithm.h',
+        'filters/audio_renderer_impl.cc',
+        'filters/audio_renderer_impl.h',
+        'filters/bitstream_converter.cc',
+        'filters/bitstream_converter.h',
+        'filters/chunk_demuxer.cc',
+        'filters/chunk_demuxer.h',
+        'filters/chunk_demuxer_client.h',
+        'filters/dummy_demuxer.cc',
+        'filters/dummy_demuxer.h',
+        'filters/ffmpeg_audio_decoder.cc',
+        'filters/ffmpeg_audio_decoder.h',
+        'filters/ffmpeg_demuxer.cc',
+        'filters/ffmpeg_demuxer.h',
+        'filters/ffmpeg_h264_bitstream_converter.cc',
+        'filters/ffmpeg_h264_bitstream_converter.h',
+        'filters/ffmpeg_glue.cc',
+        'filters/ffmpeg_glue.h',
+        'filters/ffmpeg_video_decoder.cc',
+        'filters/ffmpeg_video_decoder.h',
+        'filters/file_data_source.cc',
+        'filters/file_data_source.h',
+        'filters/gpu_video_decoder.cc',
+        'filters/gpu_video_decoder.h',
+        'filters/in_memory_url_protocol.cc',
+        'filters/in_memory_url_protocol.h',
+        'filters/source_buffer_stream.cc',
+        'filters/source_buffer_stream.h',
+        'filters/video_frame_generator.cc',
+        'filters/video_frame_generator.h',
+        'filters/video_renderer_base.cc',
+        'filters/video_renderer_base.h',
+        'video/capture/fake_video_capture_device.cc',
+        'video/capture/fake_video_capture_device.h',
+        'video/capture/linux/video_capture_device_linux.cc',
+        'video/capture/linux/video_capture_device_linux.h',
+        'video/capture/mac/video_capture_device_mac.h',
+        'video/capture/mac/video_capture_device_mac.mm',
+        'video/capture/mac/video_capture_device_qtkit_mac.h',
+        'video/capture/mac/video_capture_device_qtkit_mac.mm',
+        'video/capture/video_capture.h',
+        'video/capture/video_capture_device.h',
+        'video/capture/video_capture_device_dummy.cc',
+        'video/capture/video_capture_device_dummy.h',
+        'video/capture/video_capture_proxy.cc',
+        'video/capture/video_capture_proxy.h',
+        'video/capture/video_capture_types.h',
+        'video/capture/win/filter_base_win.cc',
+        'video/capture/win/filter_base_win.h',
+        'video/capture/win/pin_base_win.cc',
+        'video/capture/win/pin_base_win.h',
+        'video/capture/win/sink_filter_observer_win.h',
+        'video/capture/win/sink_filter_win.cc',
+        'video/capture/win/sink_filter_win.h',
+        'video/capture/win/sink_input_pin_win.cc',
+        'video/capture/win/sink_input_pin_win.h',
+        'video/capture/win/video_capture_device_win.cc',
+        'video/capture/win/video_capture_device_win.h',
+        'video/picture.cc',
+        'video/picture.h',
+        'video/video_decode_accelerator.cc',
+        'video/video_decode_accelerator.h',
+        'webm/webm_constants.h',
+        'webm/webm_cluster_parser.cc',
+        'webm/webm_cluster_parser.h',
+        'webm/webm_content_encodings.cc',
+        'webm/webm_content_encodings.h',
+        'webm/webm_content_encodings_client.cc',
+        'webm/webm_content_encodings_client.h',
+        'webm/webm_info_parser.cc',
+        'webm/webm_info_parser.h',
+        'webm/webm_parser.cc',
+        'webm/webm_parser.h',
+        'webm/webm_stream_parser.cc',
+        'webm/webm_stream_parser.h',
+        'webm/webm_tracks_parser.cc',
+        'webm/webm_tracks_parser.h',
+      ],
+      'direct_dependent_settings': {
+        'include_dirs': [
+          '..',
+        ],
+      },
+      'conditions': [
+        # Android doesn't use ffmpeg, so make the dependency conditional
+        # and exclude the sources which depend on ffmpeg.
+        ['OS != "android"', {
+          'dependencies': [
+            '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
+          ],
+        }],
+        ['OS == "android"', {
+          'sources!': [
+            'base/media_posix.cc',
+            'ffmpeg/ffmpeg_common.cc',
+            'ffmpeg/ffmpeg_common.h',
+            'ffmpeg/file_protocol.cc',
+            'ffmpeg/file_protocol.h',
+            'filters/audio_file_reader.cc',
+            'filters/audio_file_reader.h',
+            'filters/bitstream_converter.cc',
+            'filters/bitstream_converter.h',
+            'filters/chunk_demuxer.cc',
+            'filters/chunk_demuxer.h',
+            'filters/chunk_demuxer_client.h',
+            'filters/ffmpeg_audio_decoder.cc',
+            'filters/ffmpeg_audio_decoder.h',
+            'filters/ffmpeg_demuxer.cc',
+            'filters/ffmpeg_demuxer.h',
+            'filters/ffmpeg_h264_bitstream_converter.cc',
+            'filters/ffmpeg_h264_bitstream_converter.h',
+            'filters/ffmpeg_glue.cc',
+            'filters/ffmpeg_glue.h',
+            'filters/ffmpeg_video_decoder.cc',
+            'filters/ffmpeg_video_decoder.h',
+            'filters/gpu_video_decoder.cc',
+            'filters/gpu_video_decoder.h',
+            'webm/webm_cluster_parser.cc',
+            'webm/webm_cluster_parser.h',
+            'webm/webm_stream_parser.cc',
+            'webm/webm_stream_parser.h',
+          ],
+        }],
+        # The below 'android' condition were added temporarily and should be
+        # removed in downstream, because there is no Java environment setup in
+        # upstream yet.
+        ['OS == "android"', {
+          'sources!':[
+            'audio/android/audio_track_output_android.cc',
+          ],
+          'sources':[
+            'audio/android/audio_track_output_stub_android.cc',
+          ],
+          'link_settings': {
+            'libraries': [
+              '-lOpenSLES',
+            ],
+          },
+        }],
+        ['OS=="linux" or OS=="freebsd" or OS=="solaris"', {
+          'link_settings': {
+            'libraries': [
+              '-lasound',
+            ],
+          },
+        }],
+        ['OS=="openbsd"', {
+          'sources/': [ ['exclude', '/alsa_' ],
+                        ['exclude', '/audio_manager_linux' ] ],
+          'link_settings': {
+            'libraries': [
+            ],
+          },
+        }],
+        ['OS!="openbsd"', {
+          'sources!': [
+            'audio/openbsd/audio_manager_openbsd.cc',
+            'audio/openbsd/audio_manager_openbsd.h',
+          ],
+        }],
+        ['OS=="linux"', {
+          'variables': {
+            'conditions': [
+              ['sysroot!=""', {
+                'pkg-config': '../build/linux/pkg-config-wrapper "<(sysroot)" "<(target_arch)"',
+              }, {
+                'pkg-config': 'pkg-config'
+              }],
+            ],
+          },
+          'conditions': [
+            ['use_cras == 1', {
+              'cflags': [
+                '<!@(<(pkg-config) --cflags libcras)',
+              ],
+              'link_settings': {
+                'libraries': [
+                  '<!@(<(pkg-config) --libs libcras)',
+                ],
+              },
+              'defines': [
+                'USE_CRAS',
+              ],
+            }, {  # else: use_cras == 0
+              'sources!': [
+                'audio/linux/cras_output.cc',
+                'audio/linux/cras_output.h',
+              ],
+            }],
+          ],
+        }],
+        ['os_posix == 1', {
+          'conditions': [
+            ['use_pulseaudio == 1', {
+              'cflags': [
+                '<!@(pkg-config --cflags libpulse)',
+              ],
+              'link_settings': {
+                'libraries': [
+                  '<!@(pkg-config --libs-only-l libpulse)',
+                ],
+              },
+              'defines': [
+                'USE_PULSEAUDIO',
+              ],
+            }, {  # else: use_pulseaudio == 0
+              'sources!': [
+                'audio/pulse/pulse_output.cc',
+                'audio/pulse/pulse_output.h',
+              ],
+            }],
+          ],
+        }],
+        ['os_posix == 1 and OS != "android"', {
+          # Video capture isn't supported in Android yet.
+          'sources!': [
+            'video/capture/video_capture_device_dummy.cc',
+            'video/capture/video_capture_device_dummy.h',
+          ],
+        }],
+        ['OS=="mac"', {
+          'link_settings': {
+            'libraries': [
+              '$(SDKROOT)/System/Library/Frameworks/AudioUnit.framework',
+              '$(SDKROOT)/System/Library/Frameworks/AudioToolbox.framework',
+              '$(SDKROOT)/System/Library/Frameworks/CoreAudio.framework',
+              '$(SDKROOT)/System/Library/Frameworks/CoreVideo.framework',
+              '$(SDKROOT)/System/Library/Frameworks/QTKit.framework',
+            ],
+          },
+        }],
+        ['OS=="win"', {
+          'sources!': [
+            'audio/pulse/pulse_output.cc',
+            'audio/pulse/pulse_output.h',
+            'video/capture/video_capture_device_dummy.cc',
+            'video/capture/video_capture_device_dummy.h',
+          ],
+        }],
+        ['proprietary_codecs==1 or branding=="Chrome"', {
+          'sources': [
+            'mp4/avc.cc',
+            'mp4/avc.h',
+            'mp4/box_definitions.cc',
+            'mp4/box_definitions.h',
+            'mp4/box_reader.cc',
+            'mp4/box_reader.h',
+            'mp4/cenc.cc',
+            'mp4/cenc.h',
+            'mp4/mp4_stream_parser.cc',
+            'mp4/mp4_stream_parser.h',
+            'mp4/offset_byte_queue.cc',
+            'mp4/offset_byte_queue.h',
+            'mp4/track_run_iterator.cc',
+            'mp4/track_run_iterator.h',
+          ],
+        }],
+      ],
+    },
+    {
+      'target_name': 'yuv_convert',
+      'type': 'static_library',
+      'include_dirs': [
+        '..',
+      ],
+      'conditions': [
+        ['order_profiling != 0', {
+          'target_conditions' : [
+            ['_toolset=="target"', {
+              'cflags!': [ '-finstrument-functions' ],
+            }],
+          ],
+        }],
+        [ 'target_arch == "ia32" or target_arch == "x64"', {
+          'dependencies': [
+            'yuv_convert_simd_x86',
+          ],
+        }],
+        [ 'target_arch == "arm"', {
+          'dependencies': [
+            'yuv_convert_simd_arm',
+          ],
+        }],
+      ],
+      'sources': [
+        'base/yuv_convert.cc',
+        'base/yuv_convert.h',
+      ],
+    },
+    {
+      'target_name': 'yuv_convert_simd_x86',
+      'type': 'static_library',
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'base/simd/convert_rgb_to_yuv_c.cc',
+        'base/simd/convert_rgb_to_yuv_sse2.cc',
+        'base/simd/convert_rgb_to_yuv_ssse3.asm',
+        'base/simd/convert_rgb_to_yuv_ssse3.cc',
+        'base/simd/convert_rgb_to_yuv_ssse3.inc',
+        'base/simd/convert_yuv_to_rgb_c.cc',
+        'base/simd/convert_yuv_to_rgb_x86.cc',
+        'base/simd/convert_yuv_to_rgb_mmx.asm',
+        'base/simd/convert_yuv_to_rgb_mmx.inc',
+        'base/simd/convert_yuv_to_rgb_sse.asm',
+        'base/simd/filter_yuv.h',
+        'base/simd/filter_yuv_c.cc',
+        'base/simd/filter_yuv_mmx.cc',
+        'base/simd/filter_yuv_sse2.cc',
+        'base/simd/linear_scale_yuv_to_rgb_mmx.asm',
+        'base/simd/linear_scale_yuv_to_rgb_mmx.inc',
+        'base/simd/linear_scale_yuv_to_rgb_sse.asm',
+        'base/simd/scale_yuv_to_rgb_mmx.asm',
+        'base/simd/scale_yuv_to_rgb_mmx.inc',
+        'base/simd/scale_yuv_to_rgb_sse.asm',
+        'base/simd/yuv_to_rgb_table.cc',
+        'base/simd/yuv_to_rgb_table.h',
+      ],
+      'conditions': [
+        ['order_profiling != 0', {
+          'target_conditions' : [
+            ['_toolset=="target"', {
+              'cflags!': [ '-finstrument-functions' ],
+            }],
+          ],
+        }],
+        [ 'target_arch == "x64"', {
+          # Source files optimized for X64 systems.
+          'sources': [
+            'base/simd/linear_scale_yuv_to_rgb_mmx_x64.asm',
+            'base/simd/scale_yuv_to_rgb_sse2_x64.asm',
+          ],
+        }],
+        [ 'os_posix == 1 and OS != "mac" and OS != "android"', {
+          'cflags': [
+            '-msse2',
+          ],
+        }],
+        [ 'OS == "mac"', {
+          'configurations': {
+            'Debug': {
+              'xcode_settings': {
+                # gcc on the mac builds horribly unoptimized sse code in debug
+                # mode. Since this is rarely going to be debugged, run with full
+                # optimizations in Debug as well as Release.
+                'GCC_OPTIMIZATION_LEVEL': '3',  # -O3
+               },
+             },
+          },
+        }],
+        [ 'OS=="win"', {
+          'variables': {
+            'yasm_flags': [
+              '-DWIN32',
+              '-DMSVC',
+              '-DCHROMIUM',
+              '-Isimd',
+            ],
+          },
+        }],
+        [ 'OS=="mac"', {
+          'variables': {
+            'yasm_flags': [
+              '-DPREFIX',
+              '-DMACHO',
+              '-DCHROMIUM',
+              '-Isimd',
+            ],
+          },
+        }],
+        [ 'os_posix==1 and OS!="mac"', {
+          'variables': {
+            'conditions': [
+              [ 'target_arch=="ia32"', {
+                'yasm_flags': [
+                  '-DX86_32',
+                  '-DELF',
+                  '-DCHROMIUM',
+                  '-Isimd',
+                ],
+              }, {
+                'yasm_flags': [
+                  '-DARCH_X86_64',
+                  '-DELF',
+                  '-DPIC',
+                  '-DCHROMIUM',
+                  '-Isimd',
+                ],
+              }],
+            ],
+          },
+        }],
+      ],
+      'variables': {
+        'yasm_output_path': '<(SHARED_INTERMEDIATE_DIR)/media',
+      },
+      'msvs_2010_disable_uldi_when_referenced': 1,
+      'includes': [
+        '../third_party/yasm/yasm_compile.gypi',
+      ],
+    },
+    {
+      'target_name': 'yuv_convert_simd_arm',
+      'type': 'static_library',
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'base/simd/convert_rgb_to_yuv_c.cc',
+        'base/simd/convert_rgb_to_yuv.h',
+        'base/simd/convert_yuv_to_rgb_c.cc',
+        'base/simd/convert_yuv_to_rgb.h',
+        'base/simd/filter_yuv.h',
+        'base/simd/filter_yuv_c.cc',
+        'base/simd/yuv_to_rgb_table.cc',
+        'base/simd/yuv_to_rgb_table.h',
+      ],
+    },
+    {
+      'target_name': 'media_unittests',
+      'type': 'executable',
+      'dependencies': [
+        'media',
+        'media_test_support',
+        'yuv_convert',
+        '../base/base.gyp:base',
+        '../base/base.gyp:base_i18n',
+        '../base/base.gyp:test_support_base',
+        '../testing/gmock.gyp:gmock',
+        '../testing/gtest.gyp:gtest',
+        '../ui/ui.gyp:ui',
+      ],
+      'sources': [
+        'audio/async_socket_io_handler_unittest.cc',
+        'audio/audio_input_controller_unittest.cc',
+        'audio/audio_input_device_unittest.cc',
+        'audio/audio_input_unittest.cc',
+        'audio/audio_input_volume_unittest.cc',
+        'audio/audio_low_latency_input_output_unittest.cc',
+        'audio/audio_output_controller_unittest.cc',
+        'audio/audio_output_proxy_unittest.cc',
+        'audio/audio_parameters_unittest.cc',
+        'audio/audio_util_unittest.cc',
+        'audio/cross_process_notification_unittest.cc',
+        'audio/linux/alsa_output_unittest.cc',
+        'audio/mac/audio_low_latency_input_mac_unittest.cc',
+        'audio/mac/audio_output_mac_unittest.cc',
+        'audio/simple_sources_unittest.cc',
+        'audio/win/audio_low_latency_input_win_unittest.cc',
+        'audio/win/audio_low_latency_output_win_unittest.cc',
+        'audio/win/audio_output_win_unittest.cc',
+        'base/audio_renderer_mixer_unittest.cc',
+        'base/audio_renderer_mixer_input_unittest.cc',
+        'base/buffers_unittest.cc',
+        'base/clock_unittest.cc',
+        'base/composite_filter_unittest.cc',
+        'base/data_buffer_unittest.cc',
+        'base/decoder_buffer_unittest.cc',
+        'base/djb2_unittest.cc',
+        'base/fake_audio_render_callback.cc',
+        'base/fake_audio_render_callback.h',
+        'base/filter_collection_unittest.cc',
+        'base/h264_bitstream_converter_unittest.cc',
+        'base/pipeline_unittest.cc',
+        'base/ranges_unittest.cc',
+        'base/run_all_unittests.cc',
+        'base/seekable_buffer_unittest.cc',
+        'base/state_matrix_unittest.cc',
+        'base/test_data_util.cc',
+        'base/test_data_util.h',
+        'base/video_frame_unittest.cc',
+        'base/video_util_unittest.cc',
+        'base/yuv_convert_unittest.cc',
+        'crypto/aes_decryptor_unittest.cc',
+        'ffmpeg/ffmpeg_common_unittest.cc',
+        'filters/audio_renderer_algorithm_unittest.cc',
+        'filters/audio_renderer_impl_unittest.cc',
+        'filters/bitstream_converter_unittest.cc',
+        'filters/chunk_demuxer_unittest.cc',
+        'filters/ffmpeg_audio_decoder_unittest.cc',
+        'filters/ffmpeg_decoder_unittest.h',
+        'filters/ffmpeg_demuxer_unittest.cc',
+        'filters/ffmpeg_glue_unittest.cc',
+        'filters/ffmpeg_h264_bitstream_converter_unittest.cc',
+        'filters/ffmpeg_video_decoder_unittest.cc',
+        'filters/file_data_source_unittest.cc',
+        'filters/pipeline_integration_test.cc',
+        'filters/pipeline_integration_test_base.cc',
+        'filters/source_buffer_stream_unittest.cc',
+        'filters/video_renderer_base_unittest.cc',
+        'video/capture/video_capture_device_unittest.cc',
+        'webm/cluster_builder.cc',
+        'webm/cluster_builder.h',
+        'webm/webm_cluster_parser_unittest.cc',
+        'webm/webm_content_encodings_client_unittest.cc',
+        'webm/webm_parser_unittest.cc',
+      ],
+      'conditions': [
+        ['os_posix==1 and OS!="mac"', {
+          'conditions': [
+            ['linux_use_tcmalloc==1', {
+              'dependencies': [
+                '../base/allocator/allocator.gyp:allocator',
+              ],
+            }],
+          ],
+        }],
+        ['OS != "android"', {
+          'dependencies': [
+            '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
+          ],
+        }],
+        ['OS == "android"', {
+          'sources!': [
+            'audio/audio_input_volume_unittest.cc',
+            'base/test_data_util.cc',
+            'base/test_data_util.h',
+            'ffmpeg/ffmpeg_common_unittest.cc',
+            'filters/ffmpeg_audio_decoder_unittest.cc',
+            'filters/bitstream_converter_unittest.cc',
+            'filters/chunk_demuxer_unittest.cc',
+            'filters/ffmpeg_demuxer_unittest.cc',
+            'filters/ffmpeg_glue_unittest.cc',
+            'filters/ffmpeg_h264_bitstream_converter_unittest.cc',
+            'filters/ffmpeg_video_decoder_unittest.cc',
+            'filters/pipeline_integration_test.cc',
+            'filters/pipeline_integration_test_base.cc',
+            'mp4/mp4_stream_parser_unittest.cc',
+            'webm/webm_cluster_parser_unittest.cc',
+          ],
+        }],
+        ['OS == "linux"', {
+          'conditions': [
+            ['use_cras == 1', {
+              'sources': [
+                'audio/linux/cras_output_unittest.cc',
+              ],
+              'defines': [
+                'USE_CRAS',
+              ],
+            }],
+          ],
+        }],
+        [ 'target_arch=="ia32" or target_arch=="x64"', {
+          'sources': [
+            'base/simd/convert_rgb_to_yuv_unittest.cc',
+          ],
+        }],
+        ['proprietary_codecs==1 or branding=="Chrome"', {
+          'sources': [
+            'mp4/avc_unittest.cc',
+            'mp4/box_reader_unittest.cc',
+            'mp4/mp4_stream_parser_unittest.cc',
+            'mp4/offset_byte_queue_unittest.cc',
+          ],
+        }],
+      ],
+    },
+    {
+      'target_name': 'media_test_support',
+      'type': 'static_library',
+      'dependencies': [
+        'media',
+        '../base/base.gyp:base',
+        '../testing/gmock.gyp:gmock',
+        '../testing/gtest.gyp:gtest',
+      ],
+      'sources': [
+        'audio/test_audio_input_controller_factory.cc',
+        'audio/test_audio_input_controller_factory.h',
+        'base/mock_callback.cc',
+        'base/mock_callback.h',
+        'base/mock_data_source_host.cc',
+        'base/mock_data_source_host.h',
+        'base/mock_demuxer_host.cc',
+        'base/mock_demuxer_host.h',
+        'base/mock_filter_host.cc',
+        'base/mock_filter_host.h',
+        'base/mock_filters.cc',
+        'base/mock_filters.h',
+      ],
+    },
+    {
+      'target_name': 'scaler_bench',
+      'type': 'executable',
+      'dependencies': [
+        'media',
+        'yuv_convert',
+        '../base/base.gyp:base',
+        '../skia/skia.gyp:skia',
+      ],
+      'sources': [
+        'tools/scaler_bench/scaler_bench.cc',
+      ],
+    },
+    {
+      'target_name': 'qt_faststart',
+      'type': 'executable',
+      'sources': [
+        'tools/qt_faststart/qt_faststart.c'
+      ],
+    },
+    {
+      'target_name': 'seek_tester',
+      'type': 'executable',
+      'dependencies': [
+        'media',
+        '../base/base.gyp:base',
+      ],
+      'sources': [
+        'tools/seek_tester/seek_tester.cc',
+      ],
+    },
+  ],
+  'conditions': [
+    ['OS=="win"', {
+      'targets': [
+        {
+          'target_name': 'player_wtl',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            'yuv_convert',
+            '../base/base.gyp:base',
+            '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
+            '../ui/ui.gyp:ui',
+          ],
+          'include_dirs': [
+            '<(DEPTH)/third_party/wtl/include',
+          ],
+          'sources': [
+            'tools/player_wtl/list.h',
+            'tools/player_wtl/mainfrm.h',
+            'tools/player_wtl/movie.cc',
+            'tools/player_wtl/movie.h',
+            'tools/player_wtl/player_wtl.cc',
+            'tools/player_wtl/player_wtl.rc',
+            'tools/player_wtl/props.h',
+            'tools/player_wtl/seek.h',
+            'tools/player_wtl/resource.h',
+            'tools/player_wtl/view.h',
+          ],
+          'msvs_settings': {
+            'VCLinkerTool': {
+              'SubSystem': '2',         # Set /SUBSYSTEM:WINDOWS
+            },
+          },
+          'defines': [
+            '_CRT_SECURE_NO_WARNINGS=1',
+          ],
+        },
+      ],
+    }],
+    ['OS == "win" or toolkit_uses_gtk == 1', {
+      'targets': [
+        {
+          'target_name': 'shader_bench',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            'yuv_convert',
+            '../base/base.gyp:base',
+            '../ui/gl/gl.gyp:gl',
+          ],
+          'sources': [
+            'tools/shader_bench/shader_bench.cc',
+            'tools/shader_bench/cpu_color_painter.cc',
+            'tools/shader_bench/cpu_color_painter.h',
+            'tools/shader_bench/gpu_color_painter.cc',
+            'tools/shader_bench/gpu_color_painter.h',
+            'tools/shader_bench/gpu_painter.cc',
+            'tools/shader_bench/gpu_painter.h',
+            'tools/shader_bench/painter.cc',
+            'tools/shader_bench/painter.h',
+            'tools/shader_bench/window.cc',
+            'tools/shader_bench/window.h',
+          ],
+          'conditions': [
+            ['toolkit_uses_gtk == 1', {
+              'dependencies': [
+                '../build/linux/system.gyp:gtk',
+              ],
+              'sources': [
+                'tools/shader_bench/window_linux.cc',
+              ],
+            }],
+            ['OS=="win"', {
+              'dependencies': [
+                '../third_party/angle/src/build_angle.gyp:libEGL',
+                '../third_party/angle/src/build_angle.gyp:libGLESv2',
+              ],
+              'sources': [
+                'tools/shader_bench/window_win.cc',
+              ],
+            }],
+          ],
+        },
+      ],
+    }],
+    ['OS == "linux" and target_arch != "arm"', {
+      'targets': [
+        {
+          'target_name': 'tile_render_bench',
+          'type': 'executable',
+          'dependencies': [
+            '../base/base.gyp:base',
+            '../ui/gl/gl.gyp:gl',
+          ],
+          'libraries': [
+            '-lGL',
+            '-ldl',
+          ],
+          'sources': [
+            'tools/tile_render_bench/tile_render_bench.cc',
+          ],
+        },
+      ],
+    }],
+    ['os_posix == 1 and OS != "mac" and OS != "android"', {
+      'targets': [
+        {
+          'target_name': 'player_x11',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            'yuv_convert',
+            '../base/base.gyp:base',
+            '../ui/gl/gl.gyp:gl',
+          ],
+          'link_settings': {
+            'libraries': [
+              '-ldl',
+              '-lX11',
+              '-lXrender',
+              '-lXext',
+            ],
+          },
+          'sources': [
+            'tools/player_x11/data_source_logger.cc',
+            'tools/player_x11/data_source_logger.h',
+            'tools/player_x11/gl_video_renderer.cc',
+            'tools/player_x11/gl_video_renderer.h',
+            'tools/player_x11/player_x11.cc',
+            'tools/player_x11/x11_video_renderer.cc',
+            'tools/player_x11/x11_video_renderer.h',
+          ],
+        },
+      ],
+    }],
+    ['OS == "android"', {
+      'targets': [
+        {
+          'target_name': 'player_android',
+          'type': 'static_library',
+          'sources': [
+            'base/android/media_player_bridge.cc',
+            'base/android/media_player_bridge.h',
+          ],
+          'dependencies': [
+            '../base/base.gyp:base',
+          ],
+          'include_dirs': [
+            '<(SHARED_INTERMEDIATE_DIR)/media',
+          ],
+          'actions': [
+            {
+              'action_name': 'generate-jni-headers',
+              'inputs': [
+                '../base/android/jni_generator/jni_generator.py',
+                'base/android/java/src/org/chromium/media/MediaPlayerListener.java',
+              ],
+              'outputs': [
+                '<(SHARED_INTERMEDIATE_DIR)/media/jni/media_player_listener_jni.h',
+              ],
+              'action': [
+                'python',
+                '<(DEPTH)/base/android/jni_generator/jni_generator.py',
+                '-o',
+                '<@(_inputs)',
+                '<@(_outputs)',
+              ],
+            },
+          ],
+        },
+        {
+          'target_name': 'media_java',
+          'type': 'none',
+          'dependencies': [ '../base/base.gyp:base_java' ],
+          'variables': {
+            'package_name': 'media',
+            'java_in_dir': 'base/android/java',
+          },
+          'includes': [ '../build/java.gypi' ],
+        },
+
+      ],
+    }, { # OS != "android"'
+      # Android does not use ffmpeg, so disable the targets which require it.
+      'targets': [
+        {
+          'target_name': 'ffmpeg_unittests',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            'media_test_support',
+            '../base/base.gyp:base',
+            '../base/base.gyp:base_i18n',
+            '../base/base.gyp:test_support_base',
+            '../base/base.gyp:test_support_perf',
+            '../testing/gtest.gyp:gtest',
+            '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
+          ],
+          'sources': [
+            'ffmpeg/ffmpeg_unittest.cc',
+          ],
+          'conditions': [
+            ['toolkit_uses_gtk == 1', {
+              'dependencies': [
+                # Needed for the following #include chain:
+                #   base/run_all_unittests.cc
+                #   ../base/test_suite.h
+                #   gtk/gtk.h
+                '../build/linux/system.gyp:gtk',
+              ],
+              'conditions': [
+                ['linux_use_tcmalloc==1', {
+                  'dependencies': [
+                    '../base/allocator/allocator.gyp:allocator',
+                  ],
+                }],
+              ],
+            }],
+          ],
+        },
+        {
+          'target_name': 'ffmpeg_regression_tests',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            'media_test_support',
+            '../base/base.gyp:test_support_base',
+            '../testing/gmock.gyp:gmock',
+            '../testing/gtest.gyp:gtest',
+            '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
+          ],
+          'sources': [
+            'base/test_data_util.cc',
+            'base/run_all_unittests.cc',
+            'ffmpeg/ffmpeg_regression_tests.cc',
+            'filters/pipeline_integration_test_base.cc',
+          ],
+          'conditions': [
+            ['os_posix==1 and OS!="mac"', {
+              'conditions': [
+                ['linux_use_tcmalloc==1', {
+                  'dependencies': [
+                    '../base/allocator/allocator.gyp:allocator',
+                  ],
+                }],
+              ],
+            }],
+          ],
+        },
+        {
+          'target_name': 'ffmpeg_tests',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            '../base/base.gyp:base',
+            '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
+          ],
+          'sources': [
+            'test/ffmpeg_tests/ffmpeg_tests.cc',
+          ],
+        },
+        {
+          'target_name': 'media_bench',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            '../base/base.gyp:base',
+            '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
+          ],
+          'sources': [
+            'tools/media_bench/media_bench.cc',
+          ],
+        },
+      ],
+    }]
+  ],
+}
diff --git a/node_modules/node-gyp/gyp/tools/emacs/testdata/media.gyp.fontified b/node_modules/node-gyp/gyp/tools/emacs/testdata/media.gyp.fontified
new file mode 100644
index 0000000..962b7b2
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/emacs/testdata/media.gyp.fontified
@@ -0,0 +1,1107 @@
+
+#("# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+  'variables': {
+    'chromium_code': 1,
+    # Override to dynamically link the PulseAudio library.
+    'use_pulseaudio%': 0,
+    # Override to dynamically link the cras (ChromeOS audio) library.
+    'use_cras%': 0,
+  },
+  'targets': [
+    {
+      'target_name': 'media',
+      'type': '<(component)',
+      'dependencies': [
+        'yuv_convert',
+        '../base/base.gyp:base',
+        '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
+        '../build/temp_gyp/googleurl.gyp:googleurl',
+        '../crypto/crypto.gyp:crypto',
+        '../third_party/openmax/openmax.gyp:il',
+        '../ui/ui.gyp:ui',
+      ],
+      'defines': [
+        'MEDIA_IMPLEMENTATION',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'audio/android/audio_manager_android.cc',
+        'audio/android/audio_manager_android.h',
+        'audio/android/audio_track_output_android.cc',
+        'audio/android/audio_track_output_android.h',
+        'audio/android/opensles_input.cc',
+        'audio/android/opensles_input.h',
+        'audio/android/opensles_output.cc',
+        'audio/android/opensles_output.h',
+        'audio/async_socket_io_handler.h',
+        'audio/async_socket_io_handler_posix.cc',
+        'audio/async_socket_io_handler_win.cc',
+        'audio/audio_buffers_state.cc',
+        'audio/audio_buffers_state.h',
+        'audio/audio_io.h',
+        'audio/audio_input_controller.cc',
+        'audio/audio_input_controller.h',
+        'audio/audio_input_stream_impl.cc',
+        'audio/audio_input_stream_impl.h',
+        'audio/audio_device_name.cc',
+        'audio/audio_device_name.h',
+        'audio/audio_manager.cc',
+        'audio/audio_manager.h',
+        'audio/audio_manager_base.cc',
+        'audio/audio_manager_base.h',
+        'audio/audio_output_controller.cc',
+        'audio/audio_output_controller.h',
+        'audio/audio_output_dispatcher.cc',
+        'audio/audio_output_dispatcher.h',
+        'audio/audio_output_dispatcher_impl.cc',
+        'audio/audio_output_dispatcher_impl.h',
+        'audio/audio_output_mixer.cc',
+        'audio/audio_output_mixer.h',
+        'audio/audio_output_proxy.cc',
+        'audio/audio_output_proxy.h',
+        'audio/audio_parameters.cc',
+        'audio/audio_parameters.h',
+        'audio/audio_util.cc',
+        'audio/audio_util.h',
+        'audio/cross_process_notification.cc',
+        'audio/cross_process_notification.h',
+        'audio/cross_process_notification_win.cc',
+        'audio/cross_process_notification_posix.cc',
+        'audio/fake_audio_input_stream.cc',
+        'audio/fake_audio_input_stream.h',
+        'audio/fake_audio_output_stream.cc',
+        'audio/fake_audio_output_stream.h',
+        'audio/linux/audio_manager_linux.cc',
+        'audio/linux/audio_manager_linux.h',
+        'audio/linux/alsa_input.cc',
+        'audio/linux/alsa_input.h',
+        'audio/linux/alsa_output.cc',
+        'audio/linux/alsa_output.h',
+        'audio/linux/alsa_util.cc',
+        'audio/linux/alsa_util.h',
+        'audio/linux/alsa_wrapper.cc',
+        'audio/linux/alsa_wrapper.h',
+        'audio/linux/cras_output.cc',
+        'audio/linux/cras_output.h',
+        'audio/openbsd/audio_manager_openbsd.cc',
+        'audio/openbsd/audio_manager_openbsd.h',
+        'audio/mac/audio_input_mac.cc',
+        'audio/mac/audio_input_mac.h',
+        'audio/mac/audio_low_latency_input_mac.cc',
+        'audio/mac/audio_low_latency_input_mac.h',
+        'audio/mac/audio_low_latency_output_mac.cc',
+        'audio/mac/audio_low_latency_output_mac.h',
+        'audio/mac/audio_manager_mac.cc',
+        'audio/mac/audio_manager_mac.h',
+        'audio/mac/audio_output_mac.cc',
+        'audio/mac/audio_output_mac.h',
+        'audio/null_audio_sink.cc',
+        'audio/null_audio_sink.h',
+        'audio/pulse/pulse_output.cc',
+        'audio/pulse/pulse_output.h',
+        'audio/sample_rates.cc',
+        'audio/sample_rates.h',
+        'audio/simple_sources.cc',
+        'audio/simple_sources.h',
+        'audio/win/audio_low_latency_input_win.cc',
+        'audio/win/audio_low_latency_input_win.h',
+        'audio/win/audio_low_latency_output_win.cc',
+        'audio/win/audio_low_latency_output_win.h',
+        'audio/win/audio_manager_win.cc',
+        'audio/win/audio_manager_win.h',
+        'audio/win/avrt_wrapper_win.cc',
+        'audio/win/avrt_wrapper_win.h',
+        'audio/win/device_enumeration_win.cc',
+        'audio/win/device_enumeration_win.h',
+        'audio/win/wavein_input_win.cc',
+        'audio/win/wavein_input_win.h',
+        'audio/win/waveout_output_win.cc',
+        'audio/win/waveout_output_win.h',
+        'base/android/media_jni_registrar.cc',
+        'base/android/media_jni_registrar.h',
+        'base/audio_decoder.cc',
+        'base/audio_decoder.h',
+        'base/audio_decoder_config.cc',
+        'base/audio_decoder_config.h',
+        'base/audio_renderer.h',
+        'base/audio_renderer_mixer.cc',
+        'base/audio_renderer_mixer.h',
+        'base/audio_renderer_mixer_input.cc',
+        'base/audio_renderer_mixer_input.h',
+        'base/bitstream_buffer.h',
+        'base/buffers.cc',
+        'base/buffers.h',
+        'base/byte_queue.cc',
+        'base/byte_queue.h',
+        'base/channel_layout.cc',
+        'base/channel_layout.h',
+        'base/clock.cc',
+        'base/clock.h',
+        'base/composite_filter.cc',
+        'base/composite_filter.h',
+        'base/data_buffer.cc',
+        'base/data_buffer.h',
+        'base/data_source.cc',
+        'base/data_source.h',
+        'base/decoder_buffer.cc',
+        'base/decoder_buffer.h',
+        'base/decrypt_config.cc',
+        'base/decrypt_config.h',
+        'base/decryptor.h',
+        'base/decryptor_client.h',
+        'base/demuxer.cc',
+        'base/demuxer.h',
+        'base/demuxer_stream.cc',
+        'base/demuxer_stream.h',
+        'base/djb2.cc',
+        'base/djb2.h',
+        'base/filter_collection.cc',
+        'base/filter_collection.h',
+        'base/filter_host.h',
+        'base/filters.cc',
+        'base/filters.h',
+        'base/h264_bitstream_converter.cc',
+        'base/h264_bitstream_converter.h',
+        'base/media.h',
+        'base/media_android.cc',
+        'base/media_export.h',
+        'base/media_log.cc',
+        'base/media_log.h',
+        'base/media_log_event.h',
+        'base/media_posix.cc',
+        'base/media_switches.cc',
+        'base/media_switches.h',
+        'base/media_win.cc',
+        'base/message_loop_factory.cc',
+        'base/message_loop_factory.h',
+        'base/pipeline.cc',
+        'base/pipeline.h',
+        'base/pipeline_status.cc',
+        'base/pipeline_status.h',
+        'base/ranges.cc',
+        'base/ranges.h',
+        'base/seekable_buffer.cc',
+        'base/seekable_buffer.h',
+        'base/state_matrix.cc',
+        'base/state_matrix.h',
+        'base/stream_parser.cc',
+        'base/stream_parser.h',
+        'base/stream_parser_buffer.cc',
+        'base/stream_parser_buffer.h',
+        'base/video_decoder.cc',
+        'base/video_decoder.h',
+        'base/video_decoder_config.cc',
+        'base/video_decoder_config.h',
+        'base/video_frame.cc',
+        'base/video_frame.h',
+        'base/video_renderer.h',
+        'base/video_util.cc',
+        'base/video_util.h',
+        'crypto/aes_decryptor.cc',
+        'crypto/aes_decryptor.h',
+        'ffmpeg/ffmpeg_common.cc',
+        'ffmpeg/ffmpeg_common.h',
+        'ffmpeg/file_protocol.cc',
+        'ffmpeg/file_protocol.h',
+        'filters/audio_file_reader.cc',
+        'filters/audio_file_reader.h',
+        'filters/audio_renderer_algorithm.cc',
+        'filters/audio_renderer_algorithm.h',
+        'filters/audio_renderer_impl.cc',
+        'filters/audio_renderer_impl.h',
+        'filters/bitstream_converter.cc',
+        'filters/bitstream_converter.h',
+        'filters/chunk_demuxer.cc',
+        'filters/chunk_demuxer.h',
+        'filters/chunk_demuxer_client.h',
+        'filters/dummy_demuxer.cc',
+        'filters/dummy_demuxer.h',
+        'filters/ffmpeg_audio_decoder.cc',
+        'filters/ffmpeg_audio_decoder.h',
+        'filters/ffmpeg_demuxer.cc',
+        'filters/ffmpeg_demuxer.h',
+        'filters/ffmpeg_h264_bitstream_converter.cc',
+        'filters/ffmpeg_h264_bitstream_converter.h',
+        'filters/ffmpeg_glue.cc',
+        'filters/ffmpeg_glue.h',
+        'filters/ffmpeg_video_decoder.cc',
+        'filters/ffmpeg_video_decoder.h',
+        'filters/file_data_source.cc',
+        'filters/file_data_source.h',
+        'filters/gpu_video_decoder.cc',
+        'filters/gpu_video_decoder.h',
+        'filters/in_memory_url_protocol.cc',
+        'filters/in_memory_url_protocol.h',
+        'filters/source_buffer_stream.cc',
+        'filters/source_buffer_stream.h',
+        'filters/video_frame_generator.cc',
+        'filters/video_frame_generator.h',
+        'filters/video_renderer_base.cc',
+        'filters/video_renderer_base.h',
+        'video/capture/fake_video_capture_device.cc',
+        'video/capture/fake_video_capture_device.h',
+        'video/capture/linux/video_capture_device_linux.cc',
+        'video/capture/linux/video_capture_device_linux.h',
+        'video/capture/mac/video_capture_device_mac.h',
+        'video/capture/mac/video_capture_device_mac.mm',
+        'video/capture/mac/video_capture_device_qtkit_mac.h',
+        'video/capture/mac/video_capture_device_qtkit_mac.mm',
+        'video/capture/video_capture.h',
+        'video/capture/video_capture_device.h',
+        'video/capture/video_capture_device_dummy.cc',
+        'video/capture/video_capture_device_dummy.h',
+        'video/capture/video_capture_proxy.cc',
+        'video/capture/video_capture_proxy.h',
+        'video/capture/video_capture_types.h',
+        'video/capture/win/filter_base_win.cc',
+        'video/capture/win/filter_base_win.h',
+        'video/capture/win/pin_base_win.cc',
+        'video/capture/win/pin_base_win.h',
+        'video/capture/win/sink_filter_observer_win.h',
+        'video/capture/win/sink_filter_win.cc',
+        'video/capture/win/sink_filter_win.h',
+        'video/capture/win/sink_input_pin_win.cc',
+        'video/capture/win/sink_input_pin_win.h',
+        'video/capture/win/video_capture_device_win.cc',
+        'video/capture/win/video_capture_device_win.h',
+        'video/picture.cc',
+        'video/picture.h',
+        'video/video_decode_accelerator.cc',
+        'video/video_decode_accelerator.h',
+        'webm/webm_constants.h',
+        'webm/webm_cluster_parser.cc',
+        'webm/webm_cluster_parser.h',
+        'webm/webm_content_encodings.cc',
+        'webm/webm_content_encodings.h',
+        'webm/webm_content_encodings_client.cc',
+        'webm/webm_content_encodings_client.h',
+        'webm/webm_info_parser.cc',
+        'webm/webm_info_parser.h',
+        'webm/webm_parser.cc',
+        'webm/webm_parser.h',
+        'webm/webm_stream_parser.cc',
+        'webm/webm_stream_parser.h',
+        'webm/webm_tracks_parser.cc',
+        'webm/webm_tracks_parser.h',
+      ],
+      'direct_dependent_settings': {
+        'include_dirs': [
+          '..',
+        ],
+      },
+      'conditions': [
+        # Android doesn't use ffmpeg, so make the dependency conditional
+        # and exclude the sources which depend on ffmpeg.
+        ['OS != \"android\"', {
+          'dependencies': [
+            '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
+          ],
+        }],
+        ['OS == \"android\"', {
+          'sources!': [
+            'base/media_posix.cc',
+            'ffmpeg/ffmpeg_common.cc',
+            'ffmpeg/ffmpeg_common.h',
+            'ffmpeg/file_protocol.cc',
+            'ffmpeg/file_protocol.h',
+            'filters/audio_file_reader.cc',
+            'filters/audio_file_reader.h',
+            'filters/bitstream_converter.cc',
+            'filters/bitstream_converter.h',
+            'filters/chunk_demuxer.cc',
+            'filters/chunk_demuxer.h',
+            'filters/chunk_demuxer_client.h',
+            'filters/ffmpeg_audio_decoder.cc',
+            'filters/ffmpeg_audio_decoder.h',
+            'filters/ffmpeg_demuxer.cc',
+            'filters/ffmpeg_demuxer.h',
+            'filters/ffmpeg_h264_bitstream_converter.cc',
+            'filters/ffmpeg_h264_bitstream_converter.h',
+            'filters/ffmpeg_glue.cc',
+            'filters/ffmpeg_glue.h',
+            'filters/ffmpeg_video_decoder.cc',
+            'filters/ffmpeg_video_decoder.h',
+            'filters/gpu_video_decoder.cc',
+            'filters/gpu_video_decoder.h',
+            'webm/webm_cluster_parser.cc',
+            'webm/webm_cluster_parser.h',
+            'webm/webm_stream_parser.cc',
+            'webm/webm_stream_parser.h',
+          ],
+        }],
+        # The below 'android' condition were added temporarily and should be
+        # removed in downstream, because there is no Java environment setup in
+        # upstream yet.
+        ['OS == \"android\"', {
+          'sources!':[
+            'audio/android/audio_track_output_android.cc',
+          ],
+          'sources':[
+            'audio/android/audio_track_output_stub_android.cc',
+          ],
+          'link_settings': {
+            'libraries': [
+              '-lOpenSLES',
+            ],
+          },
+        }],
+        ['OS==\"linux\" or OS==\"freebsd\" or OS==\"solaris\"', {
+          'link_settings': {
+            'libraries': [
+              '-lasound',
+            ],
+          },
+        }],
+        ['OS==\"openbsd\"', {
+          'sources/': [ ['exclude', '/alsa_' ],
+                        ['exclude', '/audio_manager_linux' ] ],
+          'link_settings': {
+            'libraries': [
+            ],
+          },
+        }],
+        ['OS!=\"openbsd\"', {
+          'sources!': [
+            'audio/openbsd/audio_manager_openbsd.cc',
+            'audio/openbsd/audio_manager_openbsd.h',
+          ],
+        }],
+        ['OS==\"linux\"', {
+          'variables': {
+            'conditions': [
+              ['sysroot!=\"\"', {
+                'pkg-config': '../build/linux/pkg-config-wrapper \"<(sysroot)\" \"<(target_arch)\"',
+              }, {
+                'pkg-config': 'pkg-config'
+              }],
+            ],
+          },
+          'conditions': [
+            ['use_cras == 1', {
+              'cflags': [
+                '<!@(<(pkg-config) --cflags libcras)',
+              ],
+              'link_settings': {
+                'libraries': [
+                  '<!@(<(pkg-config) --libs libcras)',
+                ],
+              },
+              'defines': [
+                'USE_CRAS',
+              ],
+            }, {  # else: use_cras == 0
+              'sources!': [
+                'audio/linux/cras_output.cc',
+                'audio/linux/cras_output.h',
+              ],
+            }],
+          ],
+        }],
+        ['os_posix == 1', {
+          'conditions': [
+            ['use_pulseaudio == 1', {
+              'cflags': [
+                '<!@(pkg-config --cflags libpulse)',
+              ],
+              'link_settings': {
+                'libraries': [
+                  '<!@(pkg-config --libs-only-l libpulse)',
+                ],
+              },
+              'defines': [
+                'USE_PULSEAUDIO',
+              ],
+            }, {  # else: use_pulseaudio == 0
+              'sources!': [
+                'audio/pulse/pulse_output.cc',
+                'audio/pulse/pulse_output.h',
+              ],
+            }],
+          ],
+        }],
+        ['os_posix == 1 and OS != \"android\"', {
+          # Video capture isn't supported in Android yet.
+          'sources!': [
+            'video/capture/video_capture_device_dummy.cc',
+            'video/capture/video_capture_device_dummy.h',
+          ],
+        }],
+        ['OS==\"mac\"', {
+          'link_settings': {
+            'libraries': [
+              '$(SDKROOT)/System/Library/Frameworks/AudioUnit.framework',
+              '$(SDKROOT)/System/Library/Frameworks/AudioToolbox.framework',
+              '$(SDKROOT)/System/Library/Frameworks/CoreAudio.framework',
+              '$(SDKROOT)/System/Library/Frameworks/CoreVideo.framework',
+              '$(SDKROOT)/System/Library/Frameworks/QTKit.framework',
+            ],
+          },
+        }],
+        ['OS==\"win\"', {
+          'sources!': [
+            'audio/pulse/pulse_output.cc',
+            'audio/pulse/pulse_output.h',
+            'video/capture/video_capture_device_dummy.cc',
+            'video/capture/video_capture_device_dummy.h',
+          ],
+        }],
+        ['proprietary_codecs==1 or branding==\"Chrome\"', {
+          'sources': [
+            'mp4/avc.cc',
+            'mp4/avc.h',
+            'mp4/box_definitions.cc',
+            'mp4/box_definitions.h',
+            'mp4/box_reader.cc',
+            'mp4/box_reader.h',
+            'mp4/cenc.cc',
+            'mp4/cenc.h',
+            'mp4/mp4_stream_parser.cc',
+            'mp4/mp4_stream_parser.h',
+            'mp4/offset_byte_queue.cc',
+            'mp4/offset_byte_queue.h',
+            'mp4/track_run_iterator.cc',
+            'mp4/track_run_iterator.h',
+          ],
+        }],
+      ],
+    },
+    {
+      'target_name': 'yuv_convert',
+      'type': 'static_library',
+      'include_dirs': [
+        '..',
+      ],
+      'conditions': [
+        ['order_profiling != 0', {
+          'target_conditions' : [
+            ['_toolset==\"target\"', {
+              'cflags!': [ '-finstrument-functions' ],
+            }],
+          ],
+        }],
+        [ 'target_arch == \"ia32\" or target_arch == \"x64\"', {
+          'dependencies': [
+            'yuv_convert_simd_x86',
+          ],
+        }],
+        [ 'target_arch == \"arm\"', {
+          'dependencies': [
+            'yuv_convert_simd_arm',
+          ],
+        }],
+      ],
+      'sources': [
+        'base/yuv_convert.cc',
+        'base/yuv_convert.h',
+      ],
+    },
+    {
+      'target_name': 'yuv_convert_simd_x86',
+      'type': 'static_library',
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'base/simd/convert_rgb_to_yuv_c.cc',
+        'base/simd/convert_rgb_to_yuv_sse2.cc',
+        'base/simd/convert_rgb_to_yuv_ssse3.asm',
+        'base/simd/convert_rgb_to_yuv_ssse3.cc',
+        'base/simd/convert_rgb_to_yuv_ssse3.inc',
+        'base/simd/convert_yuv_to_rgb_c.cc',
+        'base/simd/convert_yuv_to_rgb_x86.cc',
+        'base/simd/convert_yuv_to_rgb_mmx.asm',
+        'base/simd/convert_yuv_to_rgb_mmx.inc',
+        'base/simd/convert_yuv_to_rgb_sse.asm',
+        'base/simd/filter_yuv.h',
+        'base/simd/filter_yuv_c.cc',
+        'base/simd/filter_yuv_mmx.cc',
+        'base/simd/filter_yuv_sse2.cc',
+        'base/simd/linear_scale_yuv_to_rgb_mmx.asm',
+        'base/simd/linear_scale_yuv_to_rgb_mmx.inc',
+        'base/simd/linear_scale_yuv_to_rgb_sse.asm',
+        'base/simd/scale_yuv_to_rgb_mmx.asm',
+        'base/simd/scale_yuv_to_rgb_mmx.inc',
+        'base/simd/scale_yuv_to_rgb_sse.asm',
+        'base/simd/yuv_to_rgb_table.cc',
+        'base/simd/yuv_to_rgb_table.h',
+      ],
+      'conditions': [
+        ['order_profiling != 0', {
+          'target_conditions' : [
+            ['_toolset==\"target\"', {
+              'cflags!': [ '-finstrument-functions' ],
+            }],
+          ],
+        }],
+        [ 'target_arch == \"x64\"', {
+          # Source files optimized for X64 systems.
+          'sources': [
+            'base/simd/linear_scale_yuv_to_rgb_mmx_x64.asm',
+            'base/simd/scale_yuv_to_rgb_sse2_x64.asm',
+          ],
+        }],
+        [ 'os_posix == 1 and OS != \"mac\" and OS != \"android\"', {
+          'cflags': [
+            '-msse2',
+          ],
+        }],
+        [ 'OS == \"mac\"', {
+          'configurations': {
+            'Debug': {
+              'xcode_settings': {
+                # gcc on the mac builds horribly unoptimized sse code in debug
+                # mode. Since this is rarely going to be debugged, run with full
+                # optimizations in Debug as well as Release.
+                'GCC_OPTIMIZATION_LEVEL': '3',  # -O3
+               },
+             },
+          },
+        }],
+        [ 'OS==\"win\"', {
+          'variables': {
+            'yasm_flags': [
+              '-DWIN32',
+              '-DMSVC',
+              '-DCHROMIUM',
+              '-Isimd',
+            ],
+          },
+        }],
+        [ 'OS==\"mac\"', {
+          'variables': {
+            'yasm_flags': [
+              '-DPREFIX',
+              '-DMACHO',
+              '-DCHROMIUM',
+              '-Isimd',
+            ],
+          },
+        }],
+        [ 'os_posix==1 and OS!=\"mac\"', {
+          'variables': {
+            'conditions': [
+              [ 'target_arch==\"ia32\"', {
+                'yasm_flags': [
+                  '-DX86_32',
+                  '-DELF',
+                  '-DCHROMIUM',
+                  '-Isimd',
+                ],
+              }, {
+                'yasm_flags': [
+                  '-DARCH_X86_64',
+                  '-DELF',
+                  '-DPIC',
+                  '-DCHROMIUM',
+                  '-Isimd',
+                ],
+              }],
+            ],
+          },
+        }],
+      ],
+      'variables': {
+        'yasm_output_path': '<(SHARED_INTERMEDIATE_DIR)/media',
+      },
+      'msvs_2010_disable_uldi_when_referenced': 1,
+      'includes': [
+        '../third_party/yasm/yasm_compile.gypi',
+      ],
+    },
+    {
+      'target_name': 'yuv_convert_simd_arm',
+      'type': 'static_library',
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'base/simd/convert_rgb_to_yuv_c.cc',
+        'base/simd/convert_rgb_to_yuv.h',
+        'base/simd/convert_yuv_to_rgb_c.cc',
+        'base/simd/convert_yuv_to_rgb.h',
+        'base/simd/filter_yuv.h',
+        'base/simd/filter_yuv_c.cc',
+        'base/simd/yuv_to_rgb_table.cc',
+        'base/simd/yuv_to_rgb_table.h',
+      ],
+    },
+    {
+      'target_name': 'media_unittests',
+      'type': 'executable',
+      'dependencies': [
+        'media',
+        'media_test_support',
+        'yuv_convert',
+        '../base/base.gyp:base',
+        '../base/base.gyp:base_i18n',
+        '../base/base.gyp:test_support_base',
+        '../testing/gmock.gyp:gmock',
+        '../testing/gtest.gyp:gtest',
+        '../ui/ui.gyp:ui',
+      ],
+      'sources': [
+        'audio/async_socket_io_handler_unittest.cc',
+        'audio/audio_input_controller_unittest.cc',
+        'audio/audio_input_device_unittest.cc',
+        'audio/audio_input_unittest.cc',
+        'audio/audio_input_volume_unittest.cc',
+        'audio/audio_low_latency_input_output_unittest.cc',
+        'audio/audio_output_controller_unittest.cc',
+        'audio/audio_output_proxy_unittest.cc',
+        'audio/audio_parameters_unittest.cc',
+        'audio/audio_util_unittest.cc',
+        'audio/cross_process_notification_unittest.cc',
+        'audio/linux/alsa_output_unittest.cc',
+        'audio/mac/audio_low_latency_input_mac_unittest.cc',
+        'audio/mac/audio_output_mac_unittest.cc',
+        'audio/simple_sources_unittest.cc',
+        'audio/win/audio_low_latency_input_win_unittest.cc',
+        'audio/win/audio_low_latency_output_win_unittest.cc',
+        'audio/win/audio_output_win_unittest.cc',
+        'base/audio_renderer_mixer_unittest.cc',
+        'base/audio_renderer_mixer_input_unittest.cc',
+        'base/buffers_unittest.cc',
+        'base/clock_unittest.cc',
+        'base/composite_filter_unittest.cc',
+        'base/data_buffer_unittest.cc',
+        'base/decoder_buffer_unittest.cc',
+        'base/djb2_unittest.cc',
+        'base/fake_audio_render_callback.cc',
+        'base/fake_audio_render_callback.h',
+        'base/filter_collection_unittest.cc',
+        'base/h264_bitstream_converter_unittest.cc',
+        'base/pipeline_unittest.cc',
+        'base/ranges_unittest.cc',
+        'base/run_all_unittests.cc',
+        'base/seekable_buffer_unittest.cc',
+        'base/state_matrix_unittest.cc',
+        'base/test_data_util.cc',
+        'base/test_data_util.h',
+        'base/video_frame_unittest.cc',
+        'base/video_util_unittest.cc',
+        'base/yuv_convert_unittest.cc',
+        'crypto/aes_decryptor_unittest.cc',
+        'ffmpeg/ffmpeg_common_unittest.cc',
+        'filters/audio_renderer_algorithm_unittest.cc',
+        'filters/audio_renderer_impl_unittest.cc',
+        'filters/bitstream_converter_unittest.cc',
+        'filters/chunk_demuxer_unittest.cc',
+        'filters/ffmpeg_audio_decoder_unittest.cc',
+        'filters/ffmpeg_decoder_unittest.h',
+        'filters/ffmpeg_demuxer_unittest.cc',
+        'filters/ffmpeg_glue_unittest.cc',
+        'filters/ffmpeg_h264_bitstream_converter_unittest.cc',
+        'filters/ffmpeg_video_decoder_unittest.cc',
+        'filters/file_data_source_unittest.cc',
+        'filters/pipeline_integration_test.cc',
+        'filters/pipeline_integration_test_base.cc',
+        'filters/source_buffer_stream_unittest.cc',
+        'filters/video_renderer_base_unittest.cc',
+        'video/capture/video_capture_device_unittest.cc',
+        'webm/cluster_builder.cc',
+        'webm/cluster_builder.h',
+        'webm/webm_cluster_parser_unittest.cc',
+        'webm/webm_content_encodings_client_unittest.cc',
+        'webm/webm_parser_unittest.cc',
+      ],
+      'conditions': [
+        ['os_posix==1 and OS!=\"mac\"', {
+          'conditions': [
+            ['linux_use_tcmalloc==1', {
+              'dependencies': [
+                '../base/allocator/allocator.gyp:allocator',
+              ],
+            }],
+          ],
+        }],
+        ['OS != \"android\"', {
+          'dependencies': [
+            '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
+          ],
+        }],
+        ['OS == \"android\"', {
+          'sources!': [
+            'audio/audio_input_volume_unittest.cc',
+            'base/test_data_util.cc',
+            'base/test_data_util.h',
+            'ffmpeg/ffmpeg_common_unittest.cc',
+            'filters/ffmpeg_audio_decoder_unittest.cc',
+            'filters/bitstream_converter_unittest.cc',
+            'filters/chunk_demuxer_unittest.cc',
+            'filters/ffmpeg_demuxer_unittest.cc',
+            'filters/ffmpeg_glue_unittest.cc',
+            'filters/ffmpeg_h264_bitstream_converter_unittest.cc',
+            'filters/ffmpeg_video_decoder_unittest.cc',
+            'filters/pipeline_integration_test.cc',
+            'filters/pipeline_integration_test_base.cc',
+            'mp4/mp4_stream_parser_unittest.cc',
+            'webm/webm_cluster_parser_unittest.cc',
+          ],
+        }],
+        ['OS == \"linux\"', {
+          'conditions': [
+            ['use_cras == 1', {
+              'sources': [
+                'audio/linux/cras_output_unittest.cc',
+              ],
+              'defines': [
+                'USE_CRAS',
+              ],
+            }],
+          ],
+        }],
+        [ 'target_arch==\"ia32\" or target_arch==\"x64\"', {
+          'sources': [
+            'base/simd/convert_rgb_to_yuv_unittest.cc',
+          ],
+        }],
+        ['proprietary_codecs==1 or branding==\"Chrome\"', {
+          'sources': [
+            'mp4/avc_unittest.cc',
+            'mp4/box_reader_unittest.cc',
+            'mp4/mp4_stream_parser_unittest.cc',
+            'mp4/offset_byte_queue_unittest.cc',
+          ],
+        }],
+      ],
+    },
+    {
+      'target_name': 'media_test_support',
+      'type': 'static_library',
+      'dependencies': [
+        'media',
+        '../base/base.gyp:base',
+        '../testing/gmock.gyp:gmock',
+        '../testing/gtest.gyp:gtest',
+      ],
+      'sources': [
+        'audio/test_audio_input_controller_factory.cc',
+        'audio/test_audio_input_controller_factory.h',
+        'base/mock_callback.cc',
+        'base/mock_callback.h',
+        'base/mock_data_source_host.cc',
+        'base/mock_data_source_host.h',
+        'base/mock_demuxer_host.cc',
+        'base/mock_demuxer_host.h',
+        'base/mock_filter_host.cc',
+        'base/mock_filter_host.h',
+        'base/mock_filters.cc',
+        'base/mock_filters.h',
+      ],
+    },
+    {
+      'target_name': 'scaler_bench',
+      'type': 'executable',
+      'dependencies': [
+        'media',
+        'yuv_convert',
+        '../base/base.gyp:base',
+        '../skia/skia.gyp:skia',
+      ],
+      'sources': [
+        'tools/scaler_bench/scaler_bench.cc',
+      ],
+    },
+    {
+      'target_name': 'qt_faststart',
+      'type': 'executable',
+      'sources': [
+        'tools/qt_faststart/qt_faststart.c'
+      ],
+    },
+    {
+      'target_name': 'seek_tester',
+      'type': 'executable',
+      'dependencies': [
+        'media',
+        '../base/base.gyp:base',
+      ],
+      'sources': [
+        'tools/seek_tester/seek_tester.cc',
+      ],
+    },
+  ],
+  'conditions': [
+    ['OS==\"win\"', {
+      'targets': [
+        {
+          'target_name': 'player_wtl',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            'yuv_convert',
+            '../base/base.gyp:base',
+            '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
+            '../ui/ui.gyp:ui',
+          ],
+          'include_dirs': [
+            '<(DEPTH)/third_party/wtl/include',
+          ],
+          'sources': [
+            'tools/player_wtl/list.h',
+            'tools/player_wtl/mainfrm.h',
+            'tools/player_wtl/movie.cc',
+            'tools/player_wtl/movie.h',
+            'tools/player_wtl/player_wtl.cc',
+            'tools/player_wtl/player_wtl.rc',
+            'tools/player_wtl/props.h',
+            'tools/player_wtl/seek.h',
+            'tools/player_wtl/resource.h',
+            'tools/player_wtl/view.h',
+          ],
+          'msvs_settings': {
+            'VCLinkerTool': {
+              'SubSystem': '2',         # Set /SUBSYSTEM:WINDOWS
+            },
+          },
+          'defines': [
+            '_CRT_SECURE_NO_WARNINGS=1',
+          ],
+        },
+      ],
+    }],
+    ['OS == \"win\" or toolkit_uses_gtk == 1', {
+      'targets': [
+        {
+          'target_name': 'shader_bench',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            'yuv_convert',
+            '../base/base.gyp:base',
+            '../ui/gl/gl.gyp:gl',
+          ],
+          'sources': [
+            'tools/shader_bench/shader_bench.cc',
+            'tools/shader_bench/cpu_color_painter.cc',
+            'tools/shader_bench/cpu_color_painter.h',
+            'tools/shader_bench/gpu_color_painter.cc',
+            'tools/shader_bench/gpu_color_painter.h',
+            'tools/shader_bench/gpu_painter.cc',
+            'tools/shader_bench/gpu_painter.h',
+            'tools/shader_bench/painter.cc',
+            'tools/shader_bench/painter.h',
+            'tools/shader_bench/window.cc',
+            'tools/shader_bench/window.h',
+          ],
+          'conditions': [
+            ['toolkit_uses_gtk == 1', {
+              'dependencies': [
+                '../build/linux/system.gyp:gtk',
+              ],
+              'sources': [
+                'tools/shader_bench/window_linux.cc',
+              ],
+            }],
+            ['OS==\"win\"', {
+              'dependencies': [
+                '../third_party/angle/src/build_angle.gyp:libEGL',
+                '../third_party/angle/src/build_angle.gyp:libGLESv2',
+              ],
+              'sources': [
+                'tools/shader_bench/window_win.cc',
+              ],
+            }],
+          ],
+        },
+      ],
+    }],
+    ['OS == \"linux\" and target_arch != \"arm\"', {
+      'targets': [
+        {
+          'target_name': 'tile_render_bench',
+          'type': 'executable',
+          'dependencies': [
+            '../base/base.gyp:base',
+            '../ui/gl/gl.gyp:gl',
+          ],
+          'libraries': [
+            '-lGL',
+            '-ldl',
+          ],
+          'sources': [
+            'tools/tile_render_bench/tile_render_bench.cc',
+          ],
+        },
+      ],
+    }],
+    ['os_posix == 1 and OS != \"mac\" and OS != \"android\"', {
+      'targets': [
+        {
+          'target_name': 'player_x11',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            'yuv_convert',
+            '../base/base.gyp:base',
+            '../ui/gl/gl.gyp:gl',
+          ],
+          'link_settings': {
+            'libraries': [
+              '-ldl',
+              '-lX11',
+              '-lXrender',
+              '-lXext',
+            ],
+          },
+          'sources': [
+            'tools/player_x11/data_source_logger.cc',
+            'tools/player_x11/data_source_logger.h',
+            'tools/player_x11/gl_video_renderer.cc',
+            'tools/player_x11/gl_video_renderer.h',
+            'tools/player_x11/player_x11.cc',
+            'tools/player_x11/x11_video_renderer.cc',
+            'tools/player_x11/x11_video_renderer.h',
+          ],
+        },
+      ],
+    }],
+    ['OS == \"android\"', {
+      'targets': [
+        {
+          'target_name': 'player_android',
+          'type': 'static_library',
+          'sources': [
+            'base/android/media_player_bridge.cc',
+            'base/android/media_player_bridge.h',
+          ],
+          'dependencies': [
+            '../base/base.gyp:base',
+          ],
+          'include_dirs': [
+            '<(SHARED_INTERMEDIATE_DIR)/media',
+          ],
+          'actions': [
+            {
+              'action_name': 'generate-jni-headers',
+              'inputs': [
+                '../base/android/jni_generator/jni_generator.py',
+                'base/android/java/src/org/chromium/media/MediaPlayerListener.java',
+              ],
+              'outputs': [
+                '<(SHARED_INTERMEDIATE_DIR)/media/jni/media_player_listener_jni.h',
+              ],
+              'action': [
+                'python',
+                '<(DEPTH)/base/android/jni_generator/jni_generator.py',
+                '-o',
+                '<@(_inputs)',
+                '<@(_outputs)',
+              ],
+            },
+          ],
+        },
+        {
+          'target_name': 'media_java',
+          'type': 'none',
+          'dependencies': [ '../base/base.gyp:base_java' ],
+          'variables': {
+            'package_name': 'media',
+            'java_in_dir': 'base/android/java',
+          },
+          'includes': [ '../build/java.gypi' ],
+        },
+
+      ],
+    }, { # OS != \"android\"'
+      # Android does not use ffmpeg, so disable the targets which require it.
+      'targets': [
+        {
+          'target_name': 'ffmpeg_unittests',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            'media_test_support',
+            '../base/base.gyp:base',
+            '../base/base.gyp:base_i18n',
+            '../base/base.gyp:test_support_base',
+            '../base/base.gyp:test_support_perf',
+            '../testing/gtest.gyp:gtest',
+            '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
+          ],
+          'sources': [
+            'ffmpeg/ffmpeg_unittest.cc',
+          ],
+          'conditions': [
+            ['toolkit_uses_gtk == 1', {
+              'dependencies': [
+                # Needed for the following #include chain:
+                #   base/run_all_unittests.cc
+                #   ../base/test_suite.h
+                #   gtk/gtk.h
+                '../build/linux/system.gyp:gtk',
+              ],
+              'conditions': [
+                ['linux_use_tcmalloc==1', {
+                  'dependencies': [
+                    '../base/allocator/allocator.gyp:allocator',
+                  ],
+                }],
+              ],
+            }],
+          ],
+        },
+        {
+          'target_name': 'ffmpeg_regression_tests',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            'media_test_support',
+            '../base/base.gyp:test_support_base',
+            '../testing/gmock.gyp:gmock',
+            '../testing/gtest.gyp:gtest',
+            '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
+          ],
+          'sources': [
+            'base/test_data_util.cc',
+            'base/run_all_unittests.cc',
+            'ffmpeg/ffmpeg_regression_tests.cc',
+            'filters/pipeline_integration_test_base.cc',
+          ],
+          'conditions': [
+            ['os_posix==1 and OS!=\"mac\"', {
+              'conditions': [
+                ['linux_use_tcmalloc==1', {
+                  'dependencies': [
+                    '../base/allocator/allocator.gyp:allocator',
+                  ],
+                }],
+              ],
+            }],
+          ],
+        },
+        {
+          'target_name': 'ffmpeg_tests',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            '../base/base.gyp:base',
+            '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
+          ],
+          'sources': [
+            'test/ffmpeg_tests/ffmpeg_tests.cc',
+          ],
+        },
+        {
+          'target_name': 'media_bench',
+          'type': 'executable',
+          'dependencies': [
+            'media',
+            '../base/base.gyp:base',
+            '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
+          ],
+          'sources': [
+            'tools/media_bench/media_bench.cc',
+          ],
+        },
+      ],
+    }]
+  ],
+}
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font-lock-string-face) 433 438 (face font-lock-function-name-face) 438 439 (face font-lock-string-face) 439 447 nil 447 448 (face font-lock-string-face) 448 452 (face font-lock-keyword-face) 452 453 (face font-lock-string-face) 453 455 nil 455 458 (face font-lock-string-face) 458 467 (face font-lock-variable-name-face) 467 469 (face font-lock-string-face) 469 477 nil 477 478 (face font-lock-string-face) 478 490 (face font-lock-keyword-face) 490 491 (face font-lock-string-face) 491 503 nil 503 504 (face font-lock-string-face) 504 515 (face font-lock-function-name-face) 515 516 (face font-lock-string-face) 516 526 nil 526 527 (face font-lock-string-face) 527 548 (face font-lock-function-name-face) 548 549 (face font-lock-string-face) 549 559 nil 559 560 (face font-lock-string-face) 560 643 (face font-lock-function-name-face) 643 644 (face font-lock-string-face) 644 654 nil 654 655 (face font-lock-string-face) 655 696 (face font-lock-function-name-face) 696 697 (face font-lock-string-face) 697 707 nil 707 708 (face font-lock-string-face) 708 735 (face font-lock-function-name-face) 735 736 (face font-lock-string-face) 736 746 nil 746 747 (face font-lock-string-face) 747 784 (face font-lock-function-name-face) 784 785 (face font-lock-string-face) 785 795 nil 795 796 (face font-lock-string-face) 796 811 (face font-lock-function-name-face) 811 812 (face font-lock-string-face) 812 829 nil 829 830 (face font-lock-string-face) 830 837 (face font-lock-keyword-face) 837 838 (face font-lock-string-face) 838 850 nil 850 851 (face font-lock-string-face) 851 871 (face font-lock-preprocessor-face) 871 872 (face font-lock-string-face) 872 889 nil 889 890 (face font-lock-string-face) 890 902 (face font-lock-keyword-face) 902 903 (face font-lock-string-face) 903 915 nil 915 916 (face font-lock-string-face) 916 918 (face font-lock-constant-face) 918 919 (face font-lock-string-face) 919 936 nil 936 937 (face font-lock-string-face) 937 944 (face font-lock-keyword-face) 944 945 (face font-lock-string-face) 945 957 nil 957 958 (face font-lock-string-face) 958 996 (face font-lock-constant-face) 996 997 (face font-lock-string-face) 997 1007 nil 1007 1008 (face font-lock-string-face) 1008 1045 (face font-lock-constant-face) 1045 1046 (face font-lock-string-face) 1046 1056 nil 1056 1057 (face font-lock-string-face) 1057 1100 (face font-lock-constant-face) 1100 1101 (face font-lock-string-face) 1101 1111 nil 1111 1112 (face font-lock-string-face) 1112 1154 (face font-lock-constant-face) 1154 1155 (face font-lock-string-face) 1155 1165 nil 1165 1166 (face font-lock-string-face) 1166 1197 (face font-lock-constant-face) 1197 1198 (face font-lock-string-face) 1198 1208 nil 1208 1209 (face font-lock-string-face) 1209 1239 (face font-lock-constant-face) 1239 1240 (face font-lock-string-face) 1240 1250 nil 1250 1251 (face font-lock-string-face) 1251 1283 (face font-lock-constant-face) 1283 1284 (face font-lock-string-face) 1284 1294 nil 1294 1295 (face font-lock-string-face) 1295 1326 (face font-lock-constant-face) 1326 1327 (face font-lock-string-face) 1327 1337 nil 1337 1338 (face font-lock-string-face) 1338 1369 (face font-lock-constant-face) 1369 1370 (face font-lock-string-face) 1370 1380 nil 1380 1381 (face font-lock-string-face) 1381 1419 (face font-lock-constant-face) 1419 1420 (face font-lock-string-face) 1420 1430 nil 1430 1431 (face font-lock-string-face) 1431 1467 (face font-lock-constant-face) 1467 1468 (face font-lock-string-face) 1468 1478 nil 1478 1479 (face font-lock-string-face) 1479 1507 (face font-lock-constant-face) 1507 1508 (face font-lock-string-face) 1508 1518 nil 1518 1519 (face font-lock-string-face) 1519 1546 (face font-lock-constant-face) 1546 1547 (face font-lock-string-face) 1547 1557 nil 1557 1558 (face font-lock-string-face) 1558 1574 (face font-lock-constant-face) 1574 1575 (face font-lock-string-face) 1575 1585 nil 1585 1586 (face font-lock-string-face) 1586 1617 (face font-lock-constant-face) 1617 1618 (face font-lock-string-face) 1618 1628 nil 1628 1629 (face font-lock-string-face) 1629 1659 (face font-lock-constant-face) 1659 1660 (face font-lock-string-face) 1660 1670 nil 1670 1671 (face font-lock-string-face) 1671 1703 (face font-lock-constant-face) 1703 1704 (face font-lock-string-face) 1704 1714 nil 1714 1715 (face font-lock-string-face) 1715 1746 (face font-lock-constant-face) 1746 1747 (face font-lock-string-face) 1747 1757 nil 1757 1758 (face font-lock-string-face) 1758 1784 (face font-lock-constant-face) 1784 1785 (face font-lock-string-face) 1785 1795 nil 1795 1796 (face font-lock-string-face) 1796 1821 (face font-lock-constant-face) 1821 1822 (face font-lock-string-face) 1822 1832 nil 1832 1833 (face font-lock-string-face) 1833 1855 (face font-lock-constant-face) 1855 1856 (face font-lock-string-face) 1856 1866 nil 1866 1867 (face font-lock-string-face) 1867 1888 (face font-lock-constant-face) 1888 1889 (face font-lock-string-face) 1889 1899 nil 1899 1900 (face font-lock-string-face) 1900 1927 (face font-lock-constant-face) 1927 1928 (face font-lock-string-face) 1928 1938 nil 1938 1939 (face font-lock-string-face) 1939 1965 (face font-lock-constant-face) 1965 1966 (face font-lock-string-face) 1966 1976 nil 1976 1977 (face font-lock-string-face) 1977 2009 (face font-lock-constant-face) 2009 2010 (face font-lock-string-face) 2010 2020 nil 2020 2021 (face font-lock-string-face) 2021 2052 (face font-lock-constant-face) 2052 2053 (face font-lock-string-face) 2053 2063 nil 2063 2064 (face font-lock-string-face) 2064 2096 (face font-lock-constant-face) 2096 2097 (face font-lock-string-face) 2097 2107 nil 2107 2108 (face font-lock-string-face) 2108 2139 (face font-lock-constant-face) 2139 2140 (face font-lock-string-face) 2140 2150 nil 2150 2151 (face font-lock-string-face) 2151 2188 (face font-lock-constant-face) 2188 2189 (face font-lock-string-face) 2189 2199 nil 2199 2200 (face font-lock-string-face) 2200 2236 (face font-lock-constant-face) 2236 2237 (face font-lock-string-face) 2237 2247 nil 2247 2248 (face font-lock-string-face) 2248 2275 (face font-lock-constant-face) 2275 2276 (face font-lock-string-face) 2276 2286 nil 2286 2287 (face font-lock-string-face) 2287 2313 (face font-lock-constant-face) 2313 2314 (face font-lock-string-face) 2314 2324 nil 2324 2325 (face font-lock-string-face) 2325 2352 (face font-lock-constant-face) 2352 2353 (face font-lock-string-face) 2353 2363 nil 2363 2364 (face font-lock-string-face) 2364 2390 (face font-lock-constant-face) 2390 2391 (face font-lock-string-face) 2391 2401 nil 2401 2402 (face font-lock-string-face) 2402 2427 (face font-lock-constant-face) 2427 2428 (face font-lock-string-face) 2428 2438 nil 2438 2439 (face font-lock-string-face) 2439 2463 (face font-lock-constant-face) 2463 2464 (face font-lock-string-face) 2464 2474 nil 2474 2475 (face font-lock-string-face) 2475 2494 (face font-lock-constant-face) 2494 2495 (face font-lock-string-face) 2495 2505 nil 2505 2506 (face font-lock-string-face) 2506 2524 (face font-lock-constant-face) 2524 2525 (face font-lock-string-face) 2525 2535 nil 2535 2536 (face font-lock-string-face) 2536 2571 (face font-lock-constant-face) 2571 2572 (face font-lock-string-face) 2572 2582 nil 2582 2583 (face font-lock-string-face) 2583 2617 (face font-lock-constant-face) 2617 2618 (face font-lock-string-face) 2618 2628 nil 2628 2629 (face font-lock-string-face) 2629 2668 (face font-lock-constant-face) 2668 2669 (face font-lock-string-face) 2669 2679 nil 2679 2680 (face font-lock-string-face) 2680 2721 (face font-lock-constant-face) 2721 2722 (face font-lock-string-face) 2722 2732 nil 2732 2733 (face font-lock-string-face) 2733 2765 (face font-lock-constant-face) 2765 2766 (face font-lock-string-face) 2766 2776 nil 2776 2777 (face font-lock-string-face) 2777 2808 (face font-lock-constant-face) 2808 2809 (face font-lock-string-face) 2809 2819 nil 2819 2820 (face font-lock-string-face) 2820 2853 (face 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3147 nil 3147 3148 (face font-lock-string-face) 3148 3172 (face font-lock-constant-face) 3172 3173 (face font-lock-string-face) 3173 3183 nil 3183 3184 (face font-lock-string-face) 3184 3207 (face font-lock-constant-face) 3207 3208 (face font-lock-string-face) 3208 3218 nil 3218 3219 (face font-lock-string-face) 3219 3246 (face font-lock-constant-face) 3246 3247 (face font-lock-string-face) 3247 3257 nil 3257 3258 (face font-lock-string-face) 3258 3284 (face font-lock-constant-face) 3284 3285 (face font-lock-string-face) 3285 3295 nil 3295 3296 (face font-lock-string-face) 3296 3322 (face font-lock-constant-face) 3322 3323 (face font-lock-string-face) 3323 3333 nil 3333 3334 (face font-lock-string-face) 3334 3359 (face font-lock-constant-face) 3359 3360 (face font-lock-string-face) 3360 3370 nil 3370 3371 (face font-lock-string-face) 3371 3409 (face font-lock-constant-face) 3409 3410 (face font-lock-string-face) 3410 3420 nil 3420 3421 (face font-lock-string-face) 3421 3458 (face 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3798 nil 3798 3799 (face font-lock-string-face) 3799 3828 (face font-lock-constant-face) 3828 3829 (face font-lock-string-face) 3829 3839 nil 3839 3840 (face font-lock-string-face) 3840 3869 (face font-lock-constant-face) 3869 3870 (face font-lock-string-face) 3870 3880 nil 3880 3881 (face font-lock-string-face) 3881 3909 (face font-lock-constant-face) 3909 3910 (face font-lock-string-face) 3910 3920 nil 3920 3921 (face font-lock-string-face) 3921 3945 (face font-lock-constant-face) 3945 3946 (face font-lock-string-face) 3946 3956 nil 3956 3957 (face font-lock-string-face) 3957 3980 (face font-lock-constant-face) 3980 3981 (face font-lock-string-face) 3981 3991 nil 3991 3992 (face font-lock-string-face) 3992 4019 (face font-lock-constant-face) 4019 4020 (face font-lock-string-face) 4020 4030 nil 4030 4031 (face font-lock-string-face) 4031 4057 (face font-lock-constant-face) 4057 4058 (face font-lock-string-face) 4058 4068 nil 4068 4069 (face font-lock-string-face) 4069 4090 (face 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4410 nil 4410 4411 (face font-lock-string-face) 4411 4441 (face font-lock-constant-face) 4441 4442 (face font-lock-string-face) 4442 4452 nil 4452 4453 (face font-lock-string-face) 4453 4482 (face font-lock-constant-face) 4482 4483 (face font-lock-string-face) 4483 4493 nil 4493 4494 (face font-lock-string-face) 4494 4523 (face font-lock-constant-face) 4523 4524 (face font-lock-string-face) 4524 4534 nil 4534 4535 (face font-lock-string-face) 4535 4563 (face font-lock-constant-face) 4563 4564 (face font-lock-string-face) 4564 4574 nil 4574 4575 (face font-lock-string-face) 4575 4610 (face font-lock-constant-face) 4610 4611 (face font-lock-string-face) 4611 4621 nil 4621 4622 (face font-lock-string-face) 4622 4656 (face font-lock-constant-face) 4656 4657 (face font-lock-string-face) 4657 4667 nil 4667 4668 (face font-lock-string-face) 4668 4697 (face font-lock-constant-face) 4697 4698 (face font-lock-string-face) 4698 4708 nil 4708 4709 (face font-lock-string-face) 4709 4737 (face 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5031 nil 5031 5032 (face font-lock-string-face) 5032 5059 (face font-lock-constant-face) 5059 5060 (face font-lock-string-face) 5060 5070 nil 5070 5071 (face font-lock-string-face) 5071 5092 (face font-lock-constant-face) 5092 5093 (face font-lock-string-face) 5093 5103 nil 5103 5104 (face font-lock-string-face) 5104 5132 (face font-lock-constant-face) 5132 5133 (face font-lock-string-face) 5133 5143 nil 5143 5144 (face font-lock-string-face) 5144 5171 (face font-lock-constant-face) 5171 5172 (face font-lock-string-face) 5172 5182 nil 5182 5183 (face font-lock-string-face) 5183 5217 (face font-lock-constant-face) 5217 5218 (face font-lock-string-face) 5218 5228 nil 5228 5229 (face font-lock-string-face) 5229 5262 (face font-lock-constant-face) 5262 5263 (face font-lock-string-face) 5263 5273 nil 5273 5274 (face font-lock-string-face) 5274 5297 (face font-lock-constant-face) 5297 5298 (face font-lock-string-face) 5298 5308 nil 5308 5309 (face font-lock-string-face) 5309 5324 (face 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5536 nil 5536 5537 (face font-lock-string-face) 5537 5561 (face font-lock-constant-face) 5561 5562 (face font-lock-string-face) 5562 5572 nil 5572 5573 (face font-lock-string-face) 5573 5596 (face font-lock-constant-face) 5596 5597 (face font-lock-string-face) 5597 5607 nil 5607 5608 (face font-lock-string-face) 5608 5627 (face font-lock-constant-face) 5627 5628 (face font-lock-string-face) 5628 5638 nil 5638 5639 (face font-lock-string-face) 5639 5657 (face font-lock-constant-face) 5657 5658 (face font-lock-string-face) 5658 5668 nil 5668 5669 (face font-lock-string-face) 5669 5688 (face font-lock-constant-face) 5688 5689 (face font-lock-string-face) 5689 5699 nil 5699 5700 (face font-lock-string-face) 5700 5718 (face font-lock-constant-face) 5718 5719 (face font-lock-string-face) 5719 5729 nil 5729 5730 (face font-lock-string-face) 5730 5752 (face font-lock-constant-face) 5752 5753 (face font-lock-string-face) 5753 5763 nil 5763 5764 (face font-lock-string-face) 5764 5785 (face 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6013 nil 6013 6014 (face font-lock-string-face) 6014 6035 (face font-lock-constant-face) 6035 6036 (face font-lock-string-face) 6036 6046 nil 6046 6047 (face font-lock-string-face) 6047 6059 (face font-lock-constant-face) 6059 6060 (face font-lock-string-face) 6060 6070 nil 6070 6071 (face font-lock-string-face) 6071 6082 (face font-lock-constant-face) 6082 6083 (face font-lock-string-face) 6083 6093 nil 6093 6094 (face font-lock-string-face) 6094 6119 (face font-lock-constant-face) 6119 6120 (face font-lock-string-face) 6120 6130 nil 6130 6131 (face font-lock-string-face) 6131 6155 (face font-lock-constant-face) 6155 6156 (face font-lock-string-face) 6156 6166 nil 6166 6167 (face font-lock-string-face) 6167 6185 (face font-lock-constant-face) 6185 6186 (face font-lock-string-face) 6186 6196 nil 6196 6197 (face font-lock-string-face) 6197 6212 (face font-lock-constant-face) 6212 6213 (face font-lock-string-face) 6213 6223 nil 6223 6224 (face font-lock-string-face) 6224 6238 (face 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6481 nil 6481 6482 (face font-lock-string-face) 6482 6504 (face font-lock-constant-face) 6504 6505 (face font-lock-string-face) 6505 6515 nil 6515 6516 (face font-lock-string-face) 6516 6535 (face font-lock-constant-face) 6535 6536 (face font-lock-string-face) 6536 6546 nil 6546 6547 (face font-lock-string-face) 6547 6569 (face font-lock-constant-face) 6569 6570 (face font-lock-string-face) 6570 6580 nil 6580 6581 (face font-lock-string-face) 6581 6602 (face font-lock-constant-face) 6602 6603 (face font-lock-string-face) 6603 6613 nil 6613 6614 (face font-lock-string-face) 6614 6631 (face font-lock-constant-face) 6631 6632 (face font-lock-string-face) 6632 6642 nil 6642 6643 (face font-lock-string-face) 6643 6671 (face font-lock-constant-face) 6671 6672 (face font-lock-string-face) 6672 6682 nil 6682 6683 (face font-lock-string-face) 6683 6710 (face font-lock-constant-face) 6710 6711 (face font-lock-string-face) 6711 6721 nil 6721 6722 (face font-lock-string-face) 6722 6738 (face 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6965 nil 6965 6966 (face font-lock-string-face) 6966 6986 (face font-lock-constant-face) 6986 6987 (face font-lock-string-face) 6987 6997 nil 6997 6998 (face font-lock-string-face) 6998 7017 (face font-lock-constant-face) 7017 7018 (face font-lock-string-face) 7018 7028 nil 7028 7029 (face font-lock-string-face) 7029 7050 (face font-lock-constant-face) 7050 7051 (face font-lock-string-face) 7051 7061 nil 7061 7062 (face font-lock-string-face) 7062 7082 (face font-lock-constant-face) 7082 7083 (face font-lock-string-face) 7083 7093 nil 7093 7094 (face font-lock-string-face) 7094 7122 (face font-lock-constant-face) 7122 7123 (face font-lock-string-face) 7123 7133 nil 7133 7134 (face font-lock-string-face) 7134 7161 (face font-lock-constant-face) 7161 7162 (face font-lock-string-face) 7162 7172 nil 7172 7173 (face font-lock-string-face) 7173 7194 (face font-lock-constant-face) 7194 7195 (face font-lock-string-face) 7195 7205 nil 7205 7206 (face font-lock-string-face) 7206 7226 (face 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7469 nil 7469 7470 (face font-lock-string-face) 7470 7493 (face font-lock-constant-face) 7493 7494 (face font-lock-string-face) 7494 7504 nil 7504 7505 (face font-lock-string-face) 7505 7527 (face font-lock-constant-face) 7527 7528 (face font-lock-string-face) 7528 7538 nil 7538 7539 (face font-lock-string-face) 7539 7562 (face font-lock-constant-face) 7562 7563 (face font-lock-string-face) 7563 7573 nil 7573 7574 (face font-lock-string-face) 7574 7596 (face font-lock-constant-face) 7596 7597 (face font-lock-string-face) 7597 7607 nil 7607 7608 (face font-lock-string-face) 7608 7631 (face font-lock-constant-face) 7631 7632 (face font-lock-string-face) 7632 7642 nil 7642 7643 (face font-lock-string-face) 7643 7665 (face font-lock-constant-face) 7665 7666 (face font-lock-string-face) 7666 7676 nil 7676 7677 (face font-lock-string-face) 7677 7705 (face font-lock-constant-face) 7705 7706 (face font-lock-string-face) 7706 7716 nil 7716 7717 (face font-lock-string-face) 7717 7744 (face 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8050 nil 8050 8051 (face font-lock-string-face) 8051 8074 (face font-lock-constant-face) 8074 8075 (face font-lock-string-face) 8075 8085 nil 8085 8086 (face font-lock-string-face) 8086 8116 (face font-lock-constant-face) 8116 8117 (face font-lock-string-face) 8117 8127 nil 8127 8128 (face font-lock-string-face) 8128 8152 (face font-lock-constant-face) 8152 8153 (face font-lock-string-face) 8153 8163 nil 8163 8164 (face font-lock-string-face) 8164 8187 (face font-lock-constant-face) 8187 8188 (face font-lock-string-face) 8188 8198 nil 8198 8199 (face font-lock-string-face) 8199 8230 (face font-lock-constant-face) 8230 8231 (face font-lock-string-face) 8231 8241 nil 8241 8242 (face font-lock-string-face) 8242 8272 (face font-lock-constant-face) 8272 8273 (face font-lock-string-face) 8273 8283 nil 8283 8284 (face font-lock-string-face) 8284 8309 (face font-lock-constant-face) 8309 8310 (face font-lock-string-face) 8310 8320 nil 8320 8321 (face font-lock-string-face) 8321 8345 (face font-lock-constant-face) 8345 8346 (face font-lock-string-face) 8346 8356 nil 8356 8357 (face font-lock-string-face) 8357 8399 (face font-lock-constant-face) 8399 8400 (face font-lock-string-face) 8400 8410 nil 8410 8411 (face font-lock-string-face) 8411 8452 (face font-lock-constant-face) 8452 8453 (face font-lock-string-face) 8453 8463 nil 8463 8464 (face font-lock-string-face) 8464 8486 (face font-lock-constant-face) 8486 8487 (face font-lock-string-face) 8487 8497 nil 8497 8498 (face font-lock-string-face) 8498 8519 (face font-lock-constant-face) 8519 8520 (face font-lock-string-face) 8520 8530 nil 8530 8531 (face font-lock-string-face) 8531 8562 (face font-lock-constant-face) 8562 8563 (face font-lock-string-face) 8563 8573 nil 8573 8574 (face font-lock-string-face) 8574 8604 (face font-lock-constant-face) 8604 8605 (face font-lock-string-face) 8605 8615 nil 8615 8616 (face font-lock-string-face) 8616 8643 (face font-lock-constant-face) 8643 8644 (face font-lock-string-face) 8644 8654 nil 8654 8655 (face font-lock-string-face) 8655 8681 (face font-lock-constant-face) 8681 8682 (face font-lock-string-face) 8682 8692 nil 8692 8693 (face font-lock-string-face) 8693 8721 (face font-lock-constant-face) 8721 8722 (face font-lock-string-face) 8722 8732 nil 8732 8733 (face font-lock-string-face) 8733 8760 (face font-lock-constant-face) 8760 8761 (face font-lock-string-face) 8761 8771 nil 8771 8772 (face font-lock-string-face) 8772 8805 (face font-lock-constant-face) 8805 8806 (face font-lock-string-face) 8806 8816 nil 8816 8817 (face font-lock-string-face) 8817 8849 (face font-lock-constant-face) 8849 8850 (face font-lock-string-face) 8850 8860 nil 8860 8861 (face font-lock-string-face) 8861 8892 (face font-lock-constant-face) 8892 8893 (face font-lock-string-face) 8893 8903 nil 8903 8904 (face font-lock-string-face) 8904 8934 (face font-lock-constant-face) 8934 8935 (face font-lock-string-face) 8935 8945 nil 8945 8946 (face font-lock-string-face) 8946 8978 (face font-lock-constant-face) 8978 8979 (face font-lock-string-face) 8979 8989 nil 8989 8990 (face font-lock-string-face) 8990 9021 (face font-lock-constant-face) 9021 9022 (face font-lock-string-face) 9022 9032 nil 9032 9033 (face font-lock-string-face) 9033 9063 (face font-lock-constant-face) 9063 9064 (face font-lock-string-face) 9064 9074 nil 9074 9075 (face font-lock-string-face) 9075 9104 (face font-lock-constant-face) 9104 9105 (face font-lock-string-face) 9105 9115 nil 9115 9116 (face font-lock-string-face) 9116 9158 (face font-lock-constant-face) 9158 9159 (face font-lock-string-face) 9159 9169 nil 9169 9170 (face font-lock-string-face) 9170 9211 (face font-lock-constant-face) 9211 9212 (face font-lock-string-face) 9212 9222 nil 9222 9223 (face font-lock-string-face) 9223 9272 (face font-lock-constant-face) 9272 9273 (face font-lock-string-face) 9273 9283 nil 9283 9284 (face font-lock-string-face) 9284 9332 (face font-lock-constant-face) 9332 9333 (face font-lock-string-face) 9333 9343 nil 9343 9344 (face font-lock-string-face) 9344 9388 (face font-lock-constant-face) 9388 9389 (face font-lock-string-face) 9389 9399 nil 9399 9400 (face font-lock-string-face) 9400 9445 (face font-lock-constant-face) 9445 9446 (face font-lock-string-face) 9446 9456 nil 9456 9457 (face font-lock-string-face) 9457 9507 (face font-lock-constant-face) 9507 9508 (face font-lock-string-face) 9508 9518 nil 9518 9519 (face font-lock-string-face) 9519 9570 (face font-lock-constant-face) 9570 9571 (face font-lock-string-face) 9571 9581 nil 9581 9582 (face font-lock-string-face) 9582 9611 (face font-lock-constant-face) 9611 9612 (face font-lock-string-face) 9612 9622 nil 9622 9623 (face font-lock-string-face) 9623 9659 (face font-lock-constant-face) 9659 9660 (face font-lock-string-face) 9660 9670 nil 9670 9671 (face font-lock-string-face) 9671 9714 (face font-lock-constant-face) 9714 9715 (face font-lock-string-face) 9715 9725 nil 9725 9726 (face font-lock-string-face) 9726 9768 (face font-lock-constant-face) 9768 9769 (face font-lock-string-face) 9769 9779 nil 9779 9780 (face font-lock-string-face) 9780 9816 (face font-lock-constant-face) 9816 9817 (face font-lock-string-face) 9817 9827 nil 9827 9828 (face font-lock-string-face) 9828 9863 (face font-lock-constant-face) 9863 9864 (face font-lock-string-face) 9864 9874 nil 9874 9875 (face font-lock-string-face) 9875 9910 (face font-lock-constant-face) 9910 9911 (face font-lock-string-face) 9911 9921 nil 9921 9922 (face font-lock-string-face) 9922 9958 (face font-lock-constant-face) 9958 9959 (face font-lock-string-face) 9959 9969 nil 9969 9970 (face font-lock-string-face) 9970 10005 (face font-lock-constant-face) 10005 10006 (face font-lock-string-face) 10006 10016 nil 10016 10017 (face font-lock-string-face) 10017 10050 (face font-lock-constant-face) 10050 10051 (face font-lock-string-face) 10051 10061 nil 10061 10062 (face font-lock-string-face) 10062 10094 (face font-lock-constant-face) 10094 10095 (face font-lock-string-face) 10095 10105 nil 10105 10106 (face font-lock-string-face) 10106 10150 (face font-lock-constant-face) 10150 10151 (face font-lock-string-face) 10151 10161 nil 10161 10162 (face font-lock-string-face) 10162 10198 (face font-lock-constant-face) 10198 10199 (face font-lock-string-face) 10199 10209 nil 10209 10210 (face font-lock-string-face) 10210 10245 (face font-lock-constant-face) 10245 10246 (face font-lock-string-face) 10246 10256 nil 10256 10257 (face font-lock-string-face) 10257 10296 (face font-lock-constant-face) 10296 10297 (face font-lock-string-face) 10297 10307 nil 10307 10308 (face font-lock-string-face) 10308 10346 (face font-lock-constant-face) 10346 10347 (face font-lock-string-face) 10347 10357 nil 10357 10358 (face font-lock-string-face) 10358 10403 (face font-lock-constant-face) 10403 10404 (face font-lock-string-face) 10404 10414 nil 10414 10415 (face font-lock-string-face) 10415 10459 (face font-lock-constant-face) 10459 10460 (face font-lock-string-face) 10460 10470 nil 10470 10471 (face font-lock-string-face) 10471 10487 (face font-lock-constant-face) 10487 10488 (face font-lock-string-face) 10488 10498 nil 10498 10499 (face font-lock-string-face) 10499 10514 (face font-lock-constant-face) 10514 10515 (face font-lock-string-face) 10515 10525 nil 10525 10526 (face font-lock-string-face) 10526 10559 (face font-lock-constant-face) 10559 10560 (face font-lock-string-face) 10560 10570 nil 10570 10571 (face font-lock-string-face) 10571 10603 (face font-lock-constant-face) 10603 10604 (face font-lock-string-face) 10604 10614 nil 10614 10615 (face font-lock-string-face) 10615 10636 (face font-lock-constant-face) 10636 10637 (face font-lock-string-face) 10637 10647 nil 10647 10648 (face font-lock-string-face) 10648 10675 (face font-lock-constant-face) 10675 10676 (face font-lock-string-face) 10676 10686 nil 10686 10687 (face font-lock-string-face) 10687 10713 (face font-lock-constant-face) 10713 10714 (face font-lock-string-face) 10714 10724 nil 10724 10725 (face font-lock-string-face) 10725 10755 (face font-lock-constant-face) 10755 10756 (face font-lock-string-face) 10756 10766 nil 10766 10767 (face font-lock-string-face) 10767 10796 (face font-lock-constant-face) 10796 10797 (face font-lock-string-face) 10797 10807 nil 10807 10808 (face font-lock-string-face) 10808 10845 (face font-lock-constant-face) 10845 10846 (face font-lock-string-face) 10846 10856 nil 10856 10857 (face font-lock-string-face) 10857 10893 (face font-lock-constant-face) 10893 10894 (face font-lock-string-face) 10894 10904 nil 10904 10905 (face font-lock-string-face) 10905 10929 (face font-lock-constant-face) 10929 10930 (face font-lock-string-face) 10930 10940 nil 10940 10941 (face font-lock-string-face) 10941 10964 (face font-lock-constant-face) 10964 10965 (face font-lock-string-face) 10965 10975 nil 10975 10976 (face font-lock-string-face) 10976 10995 (face font-lock-constant-face) 10995 10996 (face font-lock-string-face) 10996 11006 nil 11006 11007 (face font-lock-string-face) 11007 11025 (face font-lock-constant-face) 11025 11026 (face font-lock-string-face) 11026 11036 nil 11036 11037 (face font-lock-string-face) 11037 11063 (face font-lock-constant-face) 11063 11064 (face font-lock-string-face) 11064 11074 nil 11074 11075 (face font-lock-string-face) 11075 11100 (face font-lock-constant-face) 11100 11101 (face font-lock-string-face) 11101 11111 nil 11111 11112 (face font-lock-string-face) 11112 11138 (face font-lock-constant-face) 11138 11139 (face font-lock-string-face) 11139 11149 nil 11149 11150 (face font-lock-string-face) 11150 11175 (face font-lock-constant-face) 11175 11176 (face font-lock-string-face) 11176 11193 nil 11193 11194 (face font-lock-string-face) 11194 11219 (face font-lock-keyword-face) 11219 11220 (face font-lock-string-face) 11220 11232 nil 11232 11233 (face font-lock-string-face) 11233 11245 (face font-lock-keyword-face) 11245 11246 (face font-lock-string-face) 11246 11260 nil 11260 11261 (face font-lock-string-face) 11261 11263 (face font-lock-constant-face) 11263 11264 (face font-lock-string-face) 11264 11292 nil 11292 11293 (face font-lock-string-face) 11293 11303 (face font-lock-keyword-face) 11303 11304 (face font-lock-string-face) 11304 11316 nil 11316 11381 (face font-lock-comment-face) 11381 11389 nil 11389 11439 (face font-lock-comment-face) 11439 11448 nil 11448 11449 (face font-lock-string-face) 11449 11464 (face font-lock-variable-name-face) 11464 11465 (face font-lock-string-face) 11465 11479 nil 11479 11480 (face font-lock-string-face) 11480 11492 (face font-lock-keyword-face) 11492 11493 (face font-lock-string-face) 11493 11509 nil 11509 11510 (face font-lock-string-face) 11510 11549 (face font-lock-function-name-face) 11549 11550 (face font-lock-string-face) 11550 11586 nil 11586 11587 (face font-lock-string-face) 11587 11602 (face font-lock-variable-name-face) 11602 11603 (face font-lock-string-face) 11603 11617 nil 11617 11618 (face font-lock-string-face) 11618 11626 (face font-lock-keyword-face) 11626 11627 (face font-lock-string-face) 11627 11643 nil 11643 11644 (face font-lock-string-face) 11644 11663 (face font-lock-constant-face) 11663 11664 (face font-lock-string-face) 11664 11678 nil 11678 11679 (face font-lock-string-face) 11679 11702 (face font-lock-constant-face) 11702 11703 (face font-lock-string-face) 11703 11717 nil 11717 11718 (face font-lock-string-face) 11718 11740 (face font-lock-constant-face) 11740 11741 (face font-lock-string-face) 11741 11755 nil 11755 11756 (face font-lock-string-face) 11756 11779 (face font-lock-constant-face) 11779 11780 (face font-lock-string-face) 11780 11794 nil 11794 11795 (face font-lock-string-face) 11795 11817 (face font-lock-constant-face) 11817 11818 (face font-lock-string-face) 11818 11832 nil 11832 11833 (face font-lock-string-face) 11833 11861 (face font-lock-constant-face) 11861 11862 (face font-lock-string-face) 11862 11876 nil 11876 11877 (face font-lock-string-face) 11877 11904 (face font-lock-constant-face) 11904 11905 (face font-lock-string-face) 11905 11919 nil 11919 11920 (face font-lock-string-face) 11920 11950 (face font-lock-constant-face) 11950 11951 (face font-lock-string-face) 11951 11965 nil 11965 11966 (face font-lock-string-face) 11966 11995 (face font-lock-constant-face) 11995 11996 (face font-lock-string-face) 11996 12010 nil 12010 12011 (face font-lock-string-face) 12011 12035 (face font-lock-constant-face) 12035 12036 (face font-lock-string-face) 12036 12050 nil 12050 12051 (face font-lock-string-face) 12051 12074 (face font-lock-constant-face) 12074 12075 (face font-lock-string-face) 12075 12089 nil 12089 12090 (face font-lock-string-face) 12090 12120 (face font-lock-constant-face) 12120 12121 (face font-lock-string-face) 12121 12135 nil 12135 12136 (face font-lock-string-face) 12136 12167 (face font-lock-constant-face) 12167 12168 (face font-lock-string-face) 12168 12182 nil 12182 12183 (face font-lock-string-face) 12183 12213 (face font-lock-constant-face) 12213 12214 (face font-lock-string-face) 12214 12228 nil 12228 12229 (face font-lock-string-face) 12229 12254 (face font-lock-constant-face) 12254 12255 (face font-lock-string-face) 12255 12269 nil 12269 12270 (face font-lock-string-face) 12270 12294 (face font-lock-constant-face) 12294 12295 (face font-lock-string-face) 12295 12309 nil 12309 12310 (face font-lock-string-face) 12310 12352 (face font-lock-constant-face) 12352 12353 (face font-lock-string-face) 12353 12367 nil 12367 12368 (face font-lock-string-face) 12368 12409 (face font-lock-constant-face) 12409 12410 (face font-lock-string-face) 12410 12424 nil 12424 12425 (face font-lock-string-face) 12425 12447 (face font-lock-constant-face) 12447 12448 (face font-lock-string-face) 12448 12462 nil 12462 12463 (face font-lock-string-face) 12463 12484 (face font-lock-constant-face) 12484 12485 (face font-lock-string-face) 12485 12499 nil 12499 12500 (face font-lock-string-face) 12500 12531 (face font-lock-constant-face) 12531 12532 (face font-lock-string-face) 12532 12546 nil 12546 12547 (face font-lock-string-face) 12547 12577 (face font-lock-constant-face) 12577 12578 (face font-lock-string-face) 12578 12592 nil 12592 12593 (face font-lock-string-face) 12593 12621 (face font-lock-constant-face) 12621 12622 (face font-lock-string-face) 12622 12636 nil 12636 12637 (face font-lock-string-face) 12637 12664 (face font-lock-constant-face) 12664 12665 (face font-lock-string-face) 12665 12679 nil 12679 12680 (face font-lock-string-face) 12680 12707 (face font-lock-constant-face) 12707 12708 (face font-lock-string-face) 12708 12722 nil 12722 12723 (face font-lock-string-face) 12723 12749 (face font-lock-constant-face) 12749 12750 (face font-lock-string-face) 12750 12764 nil 12764 12765 (face font-lock-string-face) 12765 12791 (face font-lock-constant-face) 12791 12792 (face font-lock-string-face) 12792 12806 nil 12806 12807 (face font-lock-string-face) 12807 12832 (face font-lock-constant-face) 12832 12833 (face font-lock-string-face) 12833 12868 nil 12868 12937 (face font-lock-comment-face) 12937 12945 nil 12945 13016 (face font-lock-comment-face) 13016 13024 nil 13024 13040 (face font-lock-comment-face) 13040 13049 nil 13049 13050 (face font-lock-string-face) 13050 13065 (face font-lock-variable-name-face) 13065 13066 (face font-lock-string-face) 13066 13080 nil 13080 13081 (face font-lock-string-face) 13081 13089 (face font-lock-keyword-face) 13089 13090 (face font-lock-string-face) 13090 13105 nil 13105 13106 (face font-lock-string-face) 13106 13149 (face font-lock-constant-face) 13149 13150 (face font-lock-string-face) 13150 13175 nil 13175 13176 (face font-lock-string-face) 13176 13183 (face font-lock-keyword-face) 13183 13184 (face font-lock-string-face) 13184 13199 nil 13199 13200 (face font-lock-string-face) 13200 13248 (face font-lock-constant-face) 13248 13249 (face font-lock-string-face) 13249 13274 nil 13274 13275 (face font-lock-string-face) 13275 13288 (face font-lock-keyword-face) 13288 13289 (face font-lock-string-face) 13289 13305 nil 13305 13306 (face font-lock-string-face) 13306 13315 (face font-lock-keyword-face) 13315 13316 (face font-lock-string-face) 13316 13334 nil 13334 13335 (face font-lock-string-face) 13335 13345 (face font-lock-constant-face) 13345 13346 (face font-lock-string-face) 13346 13397 nil 13397 13398 (face font-lock-string-face) 13398 13443 (face font-lock-variable-name-face) 13443 13444 (face font-lock-string-face) 13444 13458 nil 13458 13459 (face font-lock-string-face) 13459 13472 (face font-lock-keyword-face) 13472 13473 (face font-lock-string-face) 13473 13489 nil 13489 13490 (face font-lock-string-face) 13490 13499 (face font-lock-keyword-face) 13499 13500 (face font-lock-string-face) 13500 13518 nil 13518 13519 (face font-lock-string-face) 13519 13527 (face font-lock-constant-face) 13527 13528 (face font-lock-string-face) 13528 13579 nil 13579 13580 (face font-lock-string-face) 13580 13593 (face font-lock-variable-name-face) 13593 13594 (face font-lock-string-face) 13594 13608 nil 13608 13609 (face font-lock-string-face) 13609 13617 (face font-lock-keyword-face) 13617 13618 (face font-lock-string-face) 13618 13623 nil 13623 13624 (face font-lock-string-face) 13624 13631 (face font-lock-constant-face) 13631 13632 (face font-lock-string-face) 13632 13634 nil 13634 13635 (face font-lock-string-face) 13635 13641 (face font-lock-constant-face) 13641 13642 (face font-lock-string-face) 13642 13671 nil 13671 13672 (face font-lock-string-face) 13672 13679 (face font-lock-constant-face) 13679 13680 (face font-lock-string-face) 13680 13682 nil 13682 13683 (face font-lock-string-face) 13683 13703 (face font-lock-constant-face) 13703 13704 (face font-lock-string-face) 13704 13720 nil 13720 13721 (face font-lock-string-face) 13721 13734 (face font-lock-keyword-face) 13734 13735 (face font-lock-string-face) 13735 13751 nil 13751 13752 (face font-lock-string-face) 13752 13761 (face font-lock-keyword-face) 13761 13762 (face font-lock-string-face) 13762 13815 nil 13815 13816 (face font-lock-string-face) 13816 13829 (face font-lock-variable-name-face) 13829 13830 (face font-lock-string-face) 13830 13844 nil 13844 13845 (face font-lock-string-face) 13845 13853 (face font-lock-keyword-face) 13853 13854 (face font-lock-string-face) 13854 13870 nil 13870 13871 (face font-lock-string-face) 13871 13909 (face font-lock-constant-face) 13909 13910 (face font-lock-string-face) 13910 13924 nil 13924 13925 (face font-lock-string-face) 13925 13962 (face font-lock-constant-face) 13962 13963 (face font-lock-string-face) 13963 13999 nil 13999 14000 (face font-lock-string-face) 14000 14011 (face font-lock-variable-name-face) 14011 14012 (face font-lock-string-face) 14012 14026 nil 14026 14027 (face font-lock-string-face) 14027 14036 (face font-lock-keyword-face) 14036 14037 (face font-lock-string-face) 14037 14053 nil 14053 14054 (face font-lock-string-face) 14054 14064 (face font-lock-keyword-face) 14064 14065 (face font-lock-string-face) 14065 14084 nil 14084 14085 (face font-lock-string-face) 14085 14096 (face font-lock-variable-name-face) 14096 14097 (face font-lock-string-face) 14097 14117 nil 14117 14129 (face font-lock-string-face) 14129 14131 nil 14131 14169 (face font-lock-string-face) 14169 14176 (face font-lock-variable-name-face) 14176 14182 (face font-lock-string-face) 14182 14193 (face font-lock-variable-name-face) 14193 14196 (face font-lock-string-face) 14196 14233 nil 14233 14245 (face font-lock-string-face) 14245 14247 nil 14247 14259 (face font-lock-string-face) 14259 14316 nil 14316 14317 (face font-lock-string-face) 14317 14327 (face font-lock-keyword-face) 14327 14328 (face font-lock-string-face) 14328 14345 nil 14345 14346 (face font-lock-string-face) 14346 14359 (face font-lock-variable-name-face) 14359 14360 (face font-lock-string-face) 14360 14378 nil 14378 14379 (face font-lock-string-face) 14379 14385 (face font-lock-keyword-face) 14385 14386 (face font-lock-string-face) 14386 14406 nil 14406 14411 (face font-lock-string-face) 14411 14413 (face font-lock-variable-name-face) 14413 14423 (face font-lock-variable-name-face) 14423 14443 (face font-lock-string-face) 14443 14476 nil 14476 14477 (face font-lock-string-face) 14477 14490 (face font-lock-keyword-face) 14490 14491 (face font-lock-string-face) 14491 14511 nil 14511 14512 (face font-lock-string-face) 14512 14521 (face font-lock-keyword-face) 14521 14522 (face font-lock-string-face) 14522 14544 nil 14544 14545 (face font-lock-string-face) 14545 14549 (face font-lock-constant-face) 14549 14551 (face font-lock-variable-name-face) 14551 14561 (face font-lock-variable-name-face) 14561 14578 (face font-lock-constant-face) 14578 14579 (face font-lock-string-face) 14579 14631 nil 14631 14632 (face font-lock-string-face) 14632 14639 (face font-lock-keyword-face) 14639 14640 (face font-lock-string-face) 14640 14660 nil 14660 14661 (face font-lock-string-face) 14661 14669 (face font-lock-preprocessor-face) 14669 14670 (face font-lock-string-face) 14670 14707 nil 14707 14729 (face font-lock-comment-face) 14729 14743 nil 14743 14744 (face font-lock-string-face) 14744 14752 (face font-lock-keyword-face) 14752 14753 (face font-lock-string-face) 14753 14773 nil 14773 14774 (face font-lock-string-face) 14774 14800 (face font-lock-constant-face) 14800 14801 (face font-lock-string-face) 14801 14819 nil 14819 14820 (face font-lock-string-face) 14820 14845 (face font-lock-constant-face) 14845 14846 (face font-lock-string-face) 14846 14915 nil 14915 14916 (face font-lock-string-face) 14916 14929 (face font-lock-variable-name-face) 14929 14930 (face font-lock-string-face) 14930 14944 nil 14944 14945 (face font-lock-string-face) 14945 14955 (face font-lock-keyword-face) 14955 14956 (face font-lock-string-face) 14956 14973 nil 14973 14974 (face font-lock-string-face) 14974 14993 (face font-lock-variable-name-face) 14993 14994 (face font-lock-string-face) 14994 15012 nil 15012 15013 (face font-lock-string-face) 15013 15019 (face font-lock-keyword-face) 15019 15020 (face font-lock-string-face) 15020 15040 nil 15040 15075 (face font-lock-string-face) 15075 15108 nil 15108 15109 (face font-lock-string-face) 15109 15122 (face font-lock-keyword-face) 15122 15123 (face font-lock-string-face) 15123 15143 nil 15143 15144 (face font-lock-string-face) 15144 15153 (face font-lock-keyword-face) 15153 15154 (face font-lock-string-face) 15154 15176 nil 15176 15177 (face font-lock-string-face) 15177 15215 (face font-lock-constant-face) 15215 15216 (face font-lock-string-face) 15216 15268 nil 15268 15269 (face font-lock-string-face) 15269 15276 (face font-lock-keyword-face) 15276 15277 (face font-lock-string-face) 15277 15297 nil 15297 15298 (face font-lock-string-face) 15298 15312 (face font-lock-preprocessor-face) 15312 15313 (face font-lock-string-face) 15313 15350 nil 15350 15378 (face font-lock-comment-face) 15378 15392 nil 15392 15393 (face font-lock-string-face) 15393 15401 (face font-lock-keyword-face) 15401 15402 (face font-lock-string-face) 15402 15422 nil 15422 15423 (face font-lock-string-face) 15423 15450 (face font-lock-constant-face) 15450 15451 (face font-lock-string-face) 15451 15469 nil 15469 15470 (face font-lock-string-face) 15470 15496 (face font-lock-constant-face) 15496 15497 (face font-lock-string-face) 15497 15566 nil 15566 15567 (face font-lock-string-face) 15567 15600 (face font-lock-variable-name-face) 15600 15601 (face font-lock-string-face) 15601 15615 nil 15615 15663 (face font-lock-comment-face) 15663 15673 nil 15673 15674 (face font-lock-string-face) 15674 15682 (face font-lock-keyword-face) 15682 15683 (face font-lock-string-face) 15683 15699 nil 15699 15700 (face font-lock-string-face) 15700 15743 (face font-lock-constant-face) 15743 15744 (face font-lock-string-face) 15744 15758 nil 15758 15759 (face font-lock-string-face) 15759 15801 (face font-lock-constant-face) 15801 15802 (face font-lock-string-face) 15802 15838 nil 15838 15839 (face font-lock-string-face) 15839 15848 (face font-lock-variable-name-face) 15848 15849 (face font-lock-string-face) 15849 15863 nil 15863 15864 (face font-lock-string-face) 15864 15877 (face font-lock-keyword-face) 15877 15878 (face font-lock-string-face) 15878 15894 nil 15894 15895 (face font-lock-string-face) 15895 15904 (face font-lock-keyword-face) 15904 15905 (face font-lock-string-face) 15905 15923 nil 15923 15924 (face font-lock-string-face) 15924 15980 (face font-lock-constant-face) 15980 15981 (face font-lock-string-face) 15981 15997 nil 15997 15998 (face font-lock-string-face) 15998 16057 (face font-lock-constant-face) 16057 16058 (face font-lock-string-face) 16058 16074 nil 16074 16075 (face font-lock-string-face) 16075 16131 (face font-lock-constant-face) 16131 16132 (face font-lock-string-face) 16132 16148 nil 16148 16149 (face font-lock-string-face) 16149 16205 (face font-lock-constant-face) 16205 16206 (face font-lock-string-face) 16206 16222 nil 16222 16223 (face font-lock-string-face) 16223 16275 (face font-lock-constant-face) 16275 16276 (face font-lock-string-face) 16276 16327 nil 16327 16328 (face font-lock-string-face) 16328 16337 (face font-lock-variable-name-face) 16337 16338 (face font-lock-string-face) 16338 16352 nil 16352 16353 (face font-lock-string-face) 16353 16361 (face font-lock-keyword-face) 16361 16362 (face font-lock-string-face) 16362 16378 nil 16378 16379 (face font-lock-string-face) 16379 16406 (face font-lock-constant-face) 16406 16407 (face font-lock-string-face) 16407 16421 nil 16421 16422 (face font-lock-string-face) 16422 16448 (face font-lock-constant-face) 16448 16449 (face font-lock-string-face) 16449 16463 nil 16463 16464 (face font-lock-string-face) 16464 16507 (face font-lock-constant-face) 16507 16508 (face font-lock-string-face) 16508 16522 nil 16522 16523 (face font-lock-string-face) 16523 16565 (face font-lock-constant-face) 16565 16566 (face font-lock-string-face) 16566 16602 nil 16602 16603 (face font-lock-string-face) 16603 16646 (face font-lock-variable-name-face) 16646 16647 (face font-lock-string-face) 16647 16661 nil 16661 16662 (face font-lock-string-face) 16662 16669 (face font-lock-keyword-face) 16669 16670 (face font-lock-string-face) 16670 16686 nil 16686 16687 (face font-lock-string-face) 16687 16697 (face font-lock-constant-face) 16697 16698 (face font-lock-string-face) 16698 16712 nil 16712 16713 (face font-lock-string-face) 16713 16722 (face font-lock-constant-face) 16722 16723 (face font-lock-string-face) 16723 16737 nil 16737 16738 (face font-lock-string-face) 16738 16760 (face font-lock-constant-face) 16760 16761 (face font-lock-string-face) 16761 16775 nil 16775 16776 (face font-lock-string-face) 16776 16797 (face font-lock-constant-face) 16797 16798 (face font-lock-string-face) 16798 16812 nil 16812 16813 (face font-lock-string-face) 16813 16830 (face font-lock-constant-face) 16830 16831 (face font-lock-string-face) 16831 16845 nil 16845 16846 (face font-lock-string-face) 16846 16862 (face font-lock-constant-face) 16862 16863 (face font-lock-string-face) 16863 16877 nil 16877 16878 (face font-lock-string-face) 16878 16889 (face font-lock-constant-face) 16889 16890 (face font-lock-string-face) 16890 16904 nil 16904 16905 (face font-lock-string-face) 16905 16915 (face font-lock-constant-face) 16915 16916 (face font-lock-string-face) 16916 16930 nil 16930 16931 (face font-lock-string-face) 16931 16955 (face font-lock-constant-face) 16955 16956 (face font-lock-string-face) 16956 16970 nil 16970 16971 (face font-lock-string-face) 16971 16994 (face font-lock-constant-face) 16994 16995 (face font-lock-string-face) 16995 17009 nil 17009 17010 (face font-lock-string-face) 17010 17034 (face font-lock-constant-face) 17034 17035 (face font-lock-string-face) 17035 17049 nil 17049 17050 (face font-lock-string-face) 17050 17073 (face font-lock-constant-face) 17073 17074 (face font-lock-string-face) 17074 17088 nil 17088 17089 (face font-lock-string-face) 17089 17114 (face font-lock-constant-face) 17114 17115 (face font-lock-string-face) 17115 17129 nil 17129 17130 (face font-lock-string-face) 17130 17154 (face font-lock-constant-face) 17154 17155 (face font-lock-string-face) 17155 17210 nil 17210 17211 (face font-lock-string-face) 17211 17222 (face font-lock-keyword-face) 17222 17223 (face font-lock-string-face) 17223 17225 nil 17225 17226 (face font-lock-string-face) 17226 17237 (face font-lock-function-name-face) 17237 17238 (face font-lock-string-face) 17238 17246 nil 17246 17247 (face font-lock-string-face) 17247 17251 (face font-lock-keyword-face) 17251 17252 (face font-lock-string-face) 17252 17254 nil 17254 17255 (face font-lock-string-face) 17255 17269 (face font-lock-type-face) 17269 17270 (face font-lock-string-face) 17270 17278 nil 17278 17279 (face font-lock-string-face) 17279 17291 (face font-lock-keyword-face) 17291 17292 (face font-lock-string-face) 17292 17304 nil 17304 17305 (face font-lock-string-face) 17305 17307 (face font-lock-constant-face) 17307 17308 (face font-lock-string-face) 17308 17325 nil 17325 17326 (face font-lock-string-face) 17326 17336 (face font-lock-keyword-face) 17336 17337 (face font-lock-string-face) 17337 17350 nil 17350 17351 (face font-lock-string-face) 17351 17371 (face font-lock-variable-name-face) 17371 17372 (face font-lock-string-face) 17372 17386 nil 17386 17387 (face font-lock-string-face) 17387 17404 (face font-lock-keyword-face) 17404 17405 (face font-lock-string-face) 17405 17423 nil 17423 17424 (face font-lock-string-face) 17424 17442 (face font-lock-variable-name-face) 17442 17443 (face font-lock-string-face) 17443 17461 nil 17461 17462 (face font-lock-string-face) 17462 17469 (face font-lock-keyword-face) 17469 17470 (face font-lock-string-face) 17470 17474 nil 17474 17498 (face font-lock-string-face) 17498 17553 nil 17553 17554 (face font-lock-string-face) 17554 17599 (face font-lock-variable-name-face) 17599 17600 (face font-lock-string-face) 17600 17614 nil 17614 17615 (face font-lock-string-face) 17615 17627 (face font-lock-keyword-face) 17627 17628 (face font-lock-string-face) 17628 17644 nil 17644 17645 (face font-lock-string-face) 17645 17665 (face font-lock-function-name-face) 17665 17666 (face font-lock-string-face) 17666 17703 nil 17703 17704 (face font-lock-string-face) 17704 17724 (face font-lock-variable-name-face) 17724 17725 (face font-lock-string-face) 17725 17739 nil 17739 17740 (face font-lock-string-face) 17740 17752 (face font-lock-keyword-face) 17752 17753 (face font-lock-string-face) 17753 17769 nil 17769 17770 (face font-lock-string-face) 17770 17790 (face font-lock-function-name-face) 17790 17791 (face font-lock-string-face) 17791 17833 nil 17833 17834 (face font-lock-string-face) 17834 17841 (face font-lock-keyword-face) 17841 17842 (face font-lock-string-face) 17842 17854 nil 17854 17855 (face font-lock-string-face) 17855 17874 (face font-lock-constant-face) 17874 17875 (face font-lock-string-face) 17875 17885 nil 17885 17886 (face font-lock-string-face) 17886 17904 (face font-lock-constant-face) 17904 17905 (face font-lock-string-face) 17905 17935 nil 17935 17936 (face font-lock-string-face) 17936 17947 (face font-lock-keyword-face) 17947 17948 (face font-lock-string-face) 17948 17950 nil 17950 17951 (face font-lock-string-face) 17951 17971 (face font-lock-function-name-face) 17971 17972 (face font-lock-string-face) 17972 17980 nil 17980 17981 (face font-lock-string-face) 17981 17985 (face font-lock-keyword-face) 17985 17986 (face font-lock-string-face) 17986 17988 nil 17988 17989 (face font-lock-string-face) 17989 18003 (face font-lock-type-face) 18003 18004 (face font-lock-string-face) 18004 18012 nil 18012 18013 (face font-lock-string-face) 18013 18025 (face font-lock-keyword-face) 18025 18026 (face font-lock-string-face) 18026 18038 nil 18038 18039 (face font-lock-string-face) 18039 18041 (face font-lock-constant-face) 18041 18042 (face font-lock-string-face) 18042 18059 nil 18059 18060 (face font-lock-string-face) 18060 18067 (face font-lock-keyword-face) 18067 18068 (face font-lock-string-face) 18068 18080 nil 18080 18081 (face font-lock-string-face) 18081 18114 (face font-lock-constant-face) 18114 18115 (face font-lock-string-face) 18115 18125 nil 18125 18126 (face font-lock-string-face) 18126 18162 (face font-lock-constant-face) 18162 18163 (face font-lock-string-face) 18163 18173 nil 18173 18174 (face font-lock-string-face) 18174 18212 (face font-lock-constant-face) 18212 18213 (face font-lock-string-face) 18213 18223 nil 18223 18224 (face font-lock-string-face) 18224 18261 (face font-lock-constant-face) 18261 18262 (face font-lock-string-face) 18262 18272 nil 18272 18273 (face font-lock-string-face) 18273 18311 (face font-lock-constant-face) 18311 18312 (face font-lock-string-face) 18312 18322 nil 18322 18323 (face font-lock-string-face) 18323 18356 (face font-lock-constant-face) 18356 18357 (face font-lock-string-face) 18357 18367 nil 18367 18368 (face font-lock-string-face) 18368 18403 (face font-lock-constant-face) 18403 18404 (face font-lock-string-face) 18404 18414 nil 18414 18415 (face font-lock-string-face) 18415 18451 (face font-lock-constant-face) 18451 18452 (face font-lock-string-face) 18452 18462 nil 18462 18463 (face font-lock-string-face) 18463 18499 (face font-lock-constant-face) 18499 18500 (face font-lock-string-face) 18500 18510 nil 18510 18511 (face font-lock-string-face) 18511 18547 (face font-lock-constant-face) 18547 18548 (face font-lock-string-face) 18548 18558 nil 18558 18559 (face font-lock-string-face) 18559 18581 (face font-lock-constant-face) 18581 18582 (face font-lock-string-face) 18582 18592 nil 18592 18593 (face font-lock-string-face) 18593 18618 (face font-lock-constant-face) 18618 18619 (face font-lock-string-face) 18619 18629 nil 18629 18630 (face 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font-lock-string-face) 18960 18994 (face font-lock-constant-face) 18994 18995 (face font-lock-string-face) 18995 19005 nil 19005 19006 (face font-lock-string-face) 19006 19035 (face font-lock-constant-face) 19035 19036 (face font-lock-string-face) 19036 19046 nil 19046 19047 (face font-lock-string-face) 19047 19075 (face font-lock-constant-face) 19075 19076 (face font-lock-string-face) 19076 19093 nil 19093 19094 (face font-lock-string-face) 19094 19104 (face font-lock-keyword-face) 19104 19105 (face font-lock-string-face) 19105 19118 nil 19118 19119 (face font-lock-string-face) 19119 19139 (face font-lock-variable-name-face) 19139 19140 (face font-lock-string-face) 19140 19154 nil 19154 19155 (face font-lock-string-face) 19155 19172 (face font-lock-keyword-face) 19172 19173 (face font-lock-string-face) 19173 19191 nil 19191 19192 (face font-lock-string-face) 19192 19210 (face font-lock-variable-name-face) 19210 19211 (face font-lock-string-face) 19211 19229 nil 19229 19230 (face font-lock-string-face) 19230 19237 (face font-lock-keyword-face) 19237 19238 (face font-lock-string-face) 19238 19242 nil 19242 19266 (face font-lock-string-face) 19266 19321 nil 19321 19322 (face font-lock-string-face) 19322 19342 (face font-lock-variable-name-face) 19342 19343 (face font-lock-string-face) 19343 19357 nil 19357 19399 (face font-lock-comment-face) 19399 19409 nil 19409 19410 (face font-lock-string-face) 19410 19417 (face font-lock-keyword-face) 19417 19418 (face font-lock-string-face) 19418 19434 nil 19434 19435 (face font-lock-string-face) 19435 19480 (face font-lock-constant-face) 19480 19481 (face font-lock-string-face) 19481 19495 nil 19495 19496 (face font-lock-string-face) 19496 19535 (face font-lock-constant-face) 19535 19536 (face font-lock-string-face) 19536 19573 nil 19573 19574 (face font-lock-string-face) 19574 19623 (face font-lock-variable-name-face) 19623 19624 (face font-lock-string-face) 19624 19638 nil 19638 19639 (face font-lock-string-face) 19639 19645 (face font-lock-keyword-face) 19645 19646 (face font-lock-string-face) 19646 19662 nil 19662 19670 (face font-lock-string-face) 19670 19707 nil 19707 19708 (face font-lock-string-face) 19708 19719 (face font-lock-variable-name-face) 19719 19720 (face font-lock-string-face) 19720 19734 nil 19734 19735 (face font-lock-string-face) 19735 19749 (face font-lock-keyword-face) 19749 19750 (face font-lock-string-face) 19750 19766 nil 19766 19773 (face font-lock-string-face) 19773 19791 nil 19791 19792 (face font-lock-string-face) 19792 19806 (face font-lock-keyword-face) 19806 19807 (face font-lock-string-face) 19807 19827 nil 19827 19890 (face font-lock-comment-face) 19890 19906 nil 19906 19971 (face font-lock-comment-face) 19971 19987 nil 19987 20032 (face font-lock-comment-face) 20032 20048 nil 20048 20072 (face font-lock-string-face) 20072 20074 nil 20074 20077 (face font-lock-string-face) 20077 20080 nil 20080 20086 (face font-lock-comment-face) 20086 20155 nil 20155 20156 (face 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font-lock-variable-name-face) 20437 20438 (face font-lock-string-face) 20438 20456 nil 20456 20466 (face font-lock-string-face) 20466 20482 nil 20482 20491 (face font-lock-string-face) 20491 20507 nil 20507 20519 (face font-lock-string-face) 20519 20535 nil 20535 20543 (face font-lock-string-face) 20543 20595 nil 20595 20596 (face font-lock-string-face) 20596 20621 (face font-lock-variable-name-face) 20621 20622 (face font-lock-string-face) 20622 20636 nil 20636 20637 (face font-lock-string-face) 20637 20646 (face font-lock-keyword-face) 20646 20647 (face font-lock-string-face) 20647 20663 nil 20663 20664 (face font-lock-string-face) 20664 20674 (face font-lock-keyword-face) 20674 20675 (face font-lock-string-face) 20675 20695 nil 20695 20696 (face font-lock-string-face) 20696 20715 (face font-lock-variable-name-face) 20715 20716 (face font-lock-string-face) 20716 20736 nil 20736 20748 (face font-lock-string-face) 20748 20770 nil 20770 20780 (face font-lock-string-face) 20780 20800 nil 20800 20807 (face font-lock-string-face) 20807 20827 nil 20827 20839 (face font-lock-string-face) 20839 20859 nil 20859 20867 (face font-lock-string-face) 20867 20923 nil 20923 20935 (face font-lock-string-face) 20935 20957 nil 20957 20972 (face font-lock-string-face) 20972 20992 nil 20992 20999 (face font-lock-string-face) 20999 21019 nil 21019 21026 (face font-lock-string-face) 21026 21046 nil 21046 21058 (face font-lock-string-face) 21058 21078 nil 21078 21086 (face font-lock-string-face) 21086 21180 nil 21180 21181 (face font-lock-string-face) 21181 21190 (face font-lock-keyword-face) 21190 21191 (face font-lock-string-face) 21191 21203 nil 21203 21204 (face font-lock-string-face) 21204 21220 (face font-lock-variable-name-face) 21220 21221 (face font-lock-string-face) 21221 21223 nil 21223 21224 (face font-lock-string-face) 21224 21256 (face font-lock-variable-name-face) 21256 21257 (face font-lock-string-face) 21257 21274 nil 21274 21314 (face font-lock-string-face) 21314 21325 nil 21325 21326 (face font-lock-string-face) 21326 21334 (face font-lock-keyword-face) 21334 21335 (face font-lock-string-face) 21335 21347 nil 21347 21348 (face font-lock-string-face) 21348 21385 (face font-lock-constant-face) 21385 21386 (face font-lock-string-face) 21386 21416 nil 21416 21417 (face font-lock-string-face) 21417 21428 (face font-lock-keyword-face) 21428 21429 (face font-lock-string-face) 21429 21431 nil 21431 21432 (face font-lock-string-face) 21432 21452 (face font-lock-function-name-face) 21452 21453 (face font-lock-string-face) 21453 21461 nil 21461 21462 (face font-lock-string-face) 21462 21466 (face font-lock-keyword-face) 21466 21467 (face font-lock-string-face) 21467 21469 nil 21469 21470 (face font-lock-string-face) 21470 21484 (face font-lock-type-face) 21484 21485 (face font-lock-string-face) 21485 21493 nil 21493 21494 (face font-lock-string-face) 21494 21506 (face font-lock-keyword-face) 21506 21507 (face font-lock-string-face) 21507 21519 nil 21519 21520 (face font-lock-string-face) 21520 21522 (face font-lock-constant-face) 21522 21523 (face font-lock-string-face) 21523 21540 nil 21540 21541 (face font-lock-string-face) 21541 21548 (face font-lock-keyword-face) 21548 21549 (face font-lock-string-face) 21549 21561 nil 21561 21562 (face font-lock-string-face) 21562 21595 (face font-lock-constant-face) 21595 21596 (face font-lock-string-face) 21596 21606 nil 21606 21607 (face font-lock-string-face) 21607 21637 (face font-lock-constant-face) 21637 21638 (face font-lock-string-face) 21638 21648 nil 21648 21649 (face font-lock-string-face) 21649 21682 (face font-lock-constant-face) 21682 21683 (face font-lock-string-face) 21683 21693 nil 21693 21694 (face font-lock-string-face) 21694 21724 (face font-lock-constant-face) 21724 21725 (face font-lock-string-face) 21725 21735 nil 21735 21736 (face font-lock-string-face) 21736 21758 (face font-lock-constant-face) 21758 21759 (face font-lock-string-face) 21759 21769 nil 21769 21770 (face font-lock-string-face) 21770 21795 (face font-lock-constant-face) 21795 21796 (face font-lock-string-face) 21796 21806 nil 21806 21807 (face font-lock-string-face) 21807 21836 (face font-lock-constant-face) 21836 21837 (face font-lock-string-face) 21837 21847 nil 21847 21848 (face font-lock-string-face) 21848 21876 (face font-lock-constant-face) 21876 21877 (face font-lock-string-face) 21877 21907 nil 21907 21908 (face font-lock-string-face) 21908 21919 (face font-lock-keyword-face) 21919 21920 (face font-lock-string-face) 21920 21922 nil 21922 21923 (face font-lock-string-face) 21923 21938 (face font-lock-function-name-face) 21938 21939 (face font-lock-string-face) 21939 21947 nil 21947 21948 (face font-lock-string-face) 21948 21952 (face font-lock-keyword-face) 21952 21953 (face font-lock-string-face) 21953 21955 nil 21955 21956 (face font-lock-string-face) 21956 21966 (face font-lock-type-face) 21966 21967 (face font-lock-string-face) 21967 21975 nil 21975 21976 (face font-lock-string-face) 21976 21988 (face font-lock-keyword-face) 21988 21989 (face font-lock-string-face) 21989 22001 nil 22001 22002 (face font-lock-string-face) 22002 22007 (face font-lock-function-name-face) 22007 22008 (face font-lock-string-face) 22008 22018 nil 22018 22019 (face font-lock-string-face) 22019 22037 (face font-lock-function-name-face) 22037 22038 (face font-lock-string-face) 22038 22048 nil 22048 22049 (face font-lock-string-face) 22049 22060 (face font-lock-function-name-face) 22060 22061 (face font-lock-string-face) 22061 22071 nil 22071 22072 (face font-lock-string-face) 22072 22093 (face font-lock-function-name-face) 22093 22094 (face font-lock-string-face) 22094 22104 nil 22104 22105 (face font-lock-string-face) 22105 22131 (face font-lock-function-name-face) 22131 22132 (face font-lock-string-face) 22132 22142 nil 22142 22143 (face font-lock-string-face) 22143 22177 (face font-lock-function-name-face) 22177 22178 (face font-lock-string-face) 22178 22188 nil 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font-lock-string-face) 28960 29043 (face font-lock-function-name-face) 29043 29044 (face font-lock-string-face) 29044 29058 nil 29058 29059 (face font-lock-string-face) 29059 29074 (face font-lock-function-name-face) 29074 29075 (face font-lock-string-face) 29075 29100 nil 29100 29101 (face font-lock-string-face) 29101 29113 (face font-lock-keyword-face) 29113 29114 (face font-lock-string-face) 29114 29130 nil 29130 29131 (face font-lock-string-face) 29131 29133 (face font-lock-constant-face) 29133 29138 (face font-lock-variable-name-face) 29138 29163 (face font-lock-constant-face) 29163 29164 (face font-lock-string-face) 29164 29189 nil 29189 29190 (face font-lock-string-face) 29190 29197 (face font-lock-keyword-face) 29197 29198 (face font-lock-string-face) 29198 29214 nil 29214 29215 (face font-lock-string-face) 29215 29238 (face font-lock-constant-face) 29238 29239 (face font-lock-string-face) 29239 29253 nil 29253 29254 (face font-lock-string-face) 29254 29280 (face font-lock-constant-face) 29280 29281 (face font-lock-string-face) 29281 29295 nil 29295 29296 (face font-lock-string-face) 29296 29321 (face font-lock-constant-face) 29321 29322 (face font-lock-string-face) 29322 29336 nil 29336 29337 (face font-lock-string-face) 29337 29361 (face font-lock-constant-face) 29361 29362 (face font-lock-string-face) 29362 29376 nil 29376 29377 (face font-lock-string-face) 29377 29407 (face font-lock-constant-face) 29407 29408 (face font-lock-string-face) 29408 29422 nil 29422 29423 (face font-lock-string-face) 29423 29453 (face font-lock-constant-face) 29453 29454 (face font-lock-string-face) 29454 29468 nil 29468 29469 (face font-lock-string-face) 29469 29493 (face font-lock-constant-face) 29493 29494 (face font-lock-string-face) 29494 29508 nil 29508 29509 (face font-lock-string-face) 29509 29532 (face font-lock-constant-face) 29532 29533 (face font-lock-string-face) 29533 29547 nil 29547 29548 (face font-lock-string-face) 29548 29575 (face font-lock-constant-face) 29575 29576 (face font-lock-string-face) 29576 29590 nil 29590 29591 (face font-lock-string-face) 29591 29614 (face font-lock-constant-face) 29614 29615 (face font-lock-string-face) 29615 29640 nil 29640 29655 (face font-lock-string-face) 29655 29671 nil 29671 29685 (face font-lock-string-face) 29685 29703 nil 29703 29714 (face font-lock-string-face) 29714 29716 nil 29716 29719 (face font-lock-string-face) 29719 29729 nil 29729 29754 (face font-lock-comment-face) 29754 29792 nil 29792 29793 (face font-lock-string-face) 29793 29800 (face font-lock-keyword-face) 29800 29801 (face font-lock-string-face) 29801 29817 nil 29817 29818 (face font-lock-string-face) 29818 29843 (face font-lock-preprocessor-face) 29843 29844 (face font-lock-string-face) 29844 29892 nil 29892 29893 (face font-lock-string-face) 29893 29929 (face font-lock-variable-name-face) 29929 29930 (face font-lock-string-face) 29930 29940 nil 29940 29941 (face font-lock-string-face) 29941 29948 (face font-lock-keyword-face) 29948 29949 (face font-lock-string-face) 29949 29973 nil 29973 29974 (face font-lock-string-face) 29974 29985 (face font-lock-keyword-face) 29985 29986 (face font-lock-string-face) 29986 29988 nil 29988 29989 (face font-lock-string-face) 29989 30001 (face font-lock-function-name-face) 30001 30002 (face font-lock-string-face) 30002 30014 nil 30014 30015 (face font-lock-string-face) 30015 30019 (face font-lock-keyword-face) 30019 30020 (face font-lock-string-face) 30020 30022 nil 30022 30023 (face font-lock-string-face) 30023 30033 (face font-lock-type-face) 30033 30034 (face font-lock-string-face) 30034 30046 nil 30046 30047 (face font-lock-string-face) 30047 30059 (face font-lock-keyword-face) 30059 30060 (face font-lock-string-face) 30060 30076 nil 30076 30077 (face font-lock-string-face) 30077 30082 (face font-lock-function-name-face) 30082 30083 (face font-lock-string-face) 30083 30097 nil 30097 30098 (face font-lock-string-face) 30098 30109 (face font-lock-function-name-face) 30109 30110 (face font-lock-string-face) 30110 30124 nil 30124 30125 (face font-lock-string-face) 30125 30146 (face font-lock-function-name-face) 30146 30147 (face font-lock-string-face) 30147 30161 nil 30161 30162 (face font-lock-string-face) 30162 30180 (face font-lock-function-name-face) 30180 30181 (face font-lock-string-face) 30181 30206 nil 30206 30207 (face font-lock-string-face) 30207 30214 (face font-lock-keyword-face) 30214 30215 (face font-lock-string-face) 30215 30231 nil 30231 30232 (face font-lock-string-face) 30232 30266 (face font-lock-constant-face) 30266 30267 (face font-lock-string-face) 30267 30281 nil 30281 30282 (face font-lock-string-face) 30282 30321 (face font-lock-constant-face) 30321 30322 (face font-lock-string-face) 30322 30336 nil 30336 30337 (face font-lock-string-face) 30337 30375 (face font-lock-constant-face) 30375 30376 (face font-lock-string-face) 30376 30390 nil 30390 30391 (face font-lock-string-face) 30391 30430 (face font-lock-constant-face) 30430 30431 (face font-lock-string-face) 30431 30445 nil 30445 30446 (face font-lock-string-face) 30446 30484 (face font-lock-constant-face) 30484 30485 (face font-lock-string-face) 30485 30499 nil 30499 30500 (face font-lock-string-face) 30500 30533 (face font-lock-constant-face) 30533 30534 (face font-lock-string-face) 30534 30548 nil 30548 30549 (face font-lock-string-face) 30549 30581 (face font-lock-constant-face) 30581 30582 (face font-lock-string-face) 30582 30596 nil 30596 30597 (face font-lock-string-face) 30597 30626 (face font-lock-constant-face) 30626 30627 (face font-lock-string-face) 30627 30641 nil 30641 30642 (face font-lock-string-face) 30642 30670 (face font-lock-constant-face) 30670 30671 (face font-lock-string-face) 30671 30685 nil 30685 30686 (face font-lock-string-face) 30686 30714 (face font-lock-constant-face) 30714 30715 (face font-lock-string-face) 30715 30729 nil 30729 30730 (face font-lock-string-face) 30730 30757 (face font-lock-constant-face) 30757 30758 (face font-lock-string-face) 30758 30783 nil 30783 30784 (face font-lock-string-face) 30784 30794 (face font-lock-keyword-face) 30794 30795 (face font-lock-string-face) 30795 30812 nil 30812 30813 (face font-lock-string-face) 30813 30834 (face font-lock-variable-name-face) 30834 30835 (face font-lock-string-face) 30835 30853 nil 30853 30854 (face font-lock-string-face) 30854 30866 (face font-lock-keyword-face) 30866 30867 (face font-lock-string-face) 30867 30887 nil 30887 30888 (face font-lock-string-face) 30888 30917 (face font-lock-function-name-face) 30917 30918 (face font-lock-string-face) 30918 30951 nil 30951 30952 (face font-lock-string-face) 30952 30959 (face font-lock-keyword-face) 30959 30960 (face font-lock-string-face) 30960 30980 nil 30980 30981 (face font-lock-string-face) 30981 31015 (face font-lock-constant-face) 31015 31016 (face font-lock-string-face) 31016 31064 nil 31064 31065 (face font-lock-string-face) 31065 31074 (face font-lock-variable-name-face) 31074 31075 (face font-lock-string-face) 31075 31093 nil 31093 31094 (face font-lock-string-face) 31094 31106 (face font-lock-keyword-face) 31106 31107 (face font-lock-string-face) 31107 31127 nil 31127 31128 (face font-lock-string-face) 31128 31175 (face font-lock-function-name-face) 31175 31176 (face font-lock-string-face) 31176 31194 nil 31194 31195 (face font-lock-string-face) 31195 31245 (face font-lock-function-name-face) 31245 31246 (face font-lock-string-face) 31246 31279 nil 31279 31280 (face font-lock-string-face) 31280 31287 (face font-lock-keyword-face) 31287 31288 (face font-lock-string-face) 31288 31308 nil 31308 31309 (face font-lock-string-face) 31309 31341 (face font-lock-constant-face) 31341 31342 (face font-lock-string-face) 31342 31423 nil 31423 31424 (face font-lock-string-face) 31424 31462 (face font-lock-variable-name-face) 31462 31463 (face font-lock-string-face) 31463 31473 nil 31473 31474 (face font-lock-string-face) 31474 31481 (face font-lock-keyword-face) 31481 31482 (face font-lock-string-face) 31482 31506 nil 31506 31507 (face font-lock-string-face) 31507 31518 (face font-lock-keyword-face) 31518 31519 (face font-lock-string-face) 31519 31521 nil 31521 31522 (face font-lock-string-face) 31522 31539 (face font-lock-function-name-face) 31539 31540 (face font-lock-string-face) 31540 31552 nil 31552 31553 (face font-lock-string-face) 31553 31557 (face font-lock-keyword-face) 31557 31558 (face font-lock-string-face) 31558 31560 nil 31560 31561 (face font-lock-string-face) 31561 31571 (face font-lock-type-face) 31571 31572 (face font-lock-string-face) 31572 31584 nil 31584 31585 (face font-lock-string-face) 31585 31597 (face font-lock-keyword-face) 31597 31598 (face font-lock-string-face) 31598 31614 nil 31614 31615 (face font-lock-string-face) 31615 31636 (face font-lock-function-name-face) 31636 31637 (face font-lock-string-face) 31637 31651 nil 31651 31652 (face font-lock-string-face) 31652 31670 (face font-lock-function-name-face) 31670 31671 (face font-lock-string-face) 31671 31696 nil 31696 31697 (face font-lock-string-face) 31697 31706 (face font-lock-keyword-face) 31706 31707 (face font-lock-string-face) 31707 31723 nil 31723 31724 (face font-lock-string-face) 31724 31728 (face font-lock-constant-face) 31728 31729 (face font-lock-string-face) 31729 31743 nil 31743 31744 (face font-lock-string-face) 31744 31748 (face font-lock-constant-face) 31748 31749 (face font-lock-string-face) 31749 31774 nil 31774 31775 (face font-lock-string-face) 31775 31782 (face font-lock-keyword-face) 31782 31783 (face font-lock-string-face) 31783 31799 nil 31799 31800 (face font-lock-string-face) 31800 31844 (face font-lock-constant-face) 31844 31845 (face font-lock-string-face) 31845 31893 nil 31893 31894 (face font-lock-string-face) 31894 31943 (face font-lock-variable-name-face) 31943 31944 (face font-lock-string-face) 31944 31954 nil 31954 31955 (face font-lock-string-face) 31955 31962 (face font-lock-keyword-face) 31962 31963 (face font-lock-string-face) 31963 31987 nil 31987 31988 (face font-lock-string-face) 31988 31999 (face font-lock-keyword-face) 31999 32000 (face font-lock-string-face) 32000 32002 nil 32002 32003 (face font-lock-string-face) 32003 32013 (face font-lock-function-name-face) 32013 32014 (face font-lock-string-face) 32014 32026 nil 32026 32027 (face font-lock-string-face) 32027 32031 (face font-lock-keyword-face) 32031 32032 (face font-lock-string-face) 32032 32034 nil 32034 32035 (face font-lock-string-face) 32035 32045 (face font-lock-type-face) 32045 32046 (face font-lock-string-face) 32046 32058 nil 32058 32059 (face font-lock-string-face) 32059 32071 (face font-lock-keyword-face) 32071 32072 (face font-lock-string-face) 32072 32088 nil 32088 32089 (face font-lock-string-face) 32089 32094 (face font-lock-function-name-face) 32094 32095 (face font-lock-string-face) 32095 32109 nil 32109 32110 (face font-lock-string-face) 32110 32121 (face font-lock-function-name-face) 32121 32122 (face font-lock-string-face) 32122 32136 nil 32136 32137 (face font-lock-string-face) 32137 32158 (face font-lock-function-name-face) 32158 32159 (face font-lock-string-face) 32159 32173 nil 32173 32174 (face font-lock-string-face) 32174 32192 (face font-lock-function-name-face) 32192 32193 (face font-lock-string-face) 32193 32218 nil 32218 32219 (face font-lock-string-face) 32219 32232 (face font-lock-keyword-face) 32232 32233 (face font-lock-string-face) 32233 32249 nil 32249 32250 (face font-lock-string-face) 32250 32259 (face font-lock-keyword-face) 32259 32260 (face font-lock-string-face) 32260 32278 nil 32278 32279 (face font-lock-string-face) 32279 32283 (face font-lock-constant-face) 32283 32284 (face font-lock-string-face) 32284 32300 nil 32300 32301 (face font-lock-string-face) 32301 32306 (face font-lock-constant-face) 32306 32307 (face font-lock-string-face) 32307 32323 nil 32323 32324 (face font-lock-string-face) 32324 32333 (face font-lock-constant-face) 32333 32334 (face font-lock-string-face) 32334 32350 nil 32350 32351 (face font-lock-string-face) 32351 32357 (face font-lock-constant-face) 32357 32358 (face font-lock-string-face) 32358 32398 nil 32398 32399 (face font-lock-string-face) 32399 32406 (face font-lock-keyword-face) 32406 32407 (face font-lock-string-face) 32407 32423 nil 32423 32424 (face font-lock-string-face) 32424 32462 (face font-lock-constant-face) 32462 32463 (face font-lock-string-face) 32463 32477 nil 32477 32478 (face font-lock-string-face) 32478 32515 (face font-lock-constant-face) 32515 32516 (face font-lock-string-face) 32516 32530 nil 32530 32531 (face font-lock-string-face) 32531 32568 (face font-lock-constant-face) 32568 32569 (face font-lock-string-face) 32569 32583 nil 32583 32584 (face font-lock-string-face) 32584 32620 (face font-lock-constant-face) 32620 32621 (face font-lock-string-face) 32621 32635 nil 32635 32636 (face font-lock-string-face) 32636 32666 (face font-lock-constant-face) 32666 32667 (face font-lock-string-face) 32667 32681 nil 32681 32682 (face font-lock-string-face) 32682 32720 (face font-lock-constant-face) 32720 32721 (face font-lock-string-face) 32721 32735 nil 32735 32736 (face font-lock-string-face) 32736 32773 (face font-lock-constant-face) 32773 32774 (face font-lock-string-face) 32774 32822 nil 32822 32823 (face font-lock-string-face) 32823 32838 (face font-lock-variable-name-face) 32838 32839 (face font-lock-string-face) 32839 32849 nil 32849 32850 (face font-lock-string-face) 32850 32857 (face font-lock-keyword-face) 32857 32858 (face font-lock-string-face) 32858 32882 nil 32882 32883 (face font-lock-string-face) 32883 32894 (face font-lock-keyword-face) 32894 32895 (face font-lock-string-face) 32895 32897 nil 32897 32898 (face font-lock-string-face) 32898 32912 (face font-lock-function-name-face) 32912 32913 (face font-lock-string-face) 32913 32925 nil 32925 32926 (face font-lock-string-face) 32926 32930 (face font-lock-keyword-face) 32930 32931 (face font-lock-string-face) 32931 32933 nil 32933 32934 (face font-lock-string-face) 32934 32948 (face font-lock-type-face) 32948 32949 (face font-lock-string-face) 32949 32961 nil 32961 32962 (face font-lock-string-face) 32962 32969 (face font-lock-keyword-face) 32969 32970 (face font-lock-string-face) 32970 32986 nil 32986 32987 (face font-lock-string-face) 32987 33022 (face font-lock-constant-face) 33022 33023 (face font-lock-string-face) 33023 33037 nil 33037 33038 (face font-lock-string-face) 33038 33072 (face font-lock-constant-face) 33072 33073 (face font-lock-string-face) 33073 33098 nil 33098 33099 (face font-lock-string-face) 33099 33111 (face font-lock-keyword-face) 33111 33112 (face font-lock-string-face) 33112 33128 nil 33128 33129 (face font-lock-string-face) 33129 33150 (face font-lock-function-name-face) 33150 33151 (face font-lock-string-face) 33151 33176 nil 33176 33177 (face font-lock-string-face) 33177 33189 (face font-lock-keyword-face) 33189 33190 (face font-lock-string-face) 33190 33206 nil 33206 33207 (face font-lock-string-face) 33207 33209 (face font-lock-constant-face) 33209 33232 (face font-lock-variable-name-face) 33232 33239 (face font-lock-constant-face) 33239 33240 (face font-lock-string-face) 33240 33265 nil 33265 33266 (face font-lock-string-face) 33266 33273 (face font-lock-keyword-face) 33273 33274 (face font-lock-string-face) 33274 33306 nil 33306 33307 (face font-lock-string-face) 33307 33318 (face font-lock-keyword-face) 33318 33319 (face font-lock-string-face) 33319 33321 nil 33321 33322 (face font-lock-string-face) 33322 33342 (face font-lock-function-name-face) 33342 33343 (face font-lock-string-face) 33343 33359 nil 33359 33360 (face font-lock-string-face) 33360 33366 (face font-lock-keyword-face) 33366 33367 (face font-lock-string-face) 33367 33387 nil 33387 33388 (face font-lock-string-face) 33388 33434 (face font-lock-constant-face) 33434 33435 (face font-lock-string-face) 33435 33453 nil 33453 33454 (face font-lock-string-face) 33454 33519 (face font-lock-constant-face) 33519 33520 (face font-lock-string-face) 33520 33553 nil 33553 33554 (face font-lock-string-face) 33554 33561 (face font-lock-keyword-face) 33561 33562 (face font-lock-string-face) 33562 33582 nil 33582 33583 (face font-lock-string-face) 33583 33585 (face font-lock-constant-face) 33585 33608 (face font-lock-variable-name-face) 33608 33647 (face font-lock-constant-face) 33647 33648 (face font-lock-string-face) 33648 33681 nil 33681 33682 (face font-lock-string-face) 33682 33688 (face font-lock-keyword-face) 33688 33689 (face font-lock-string-face) 33689 33709 nil 33709 33710 (face font-lock-string-face) 33710 33716 (face font-lock-constant-face) 33716 33717 (face font-lock-string-face) 33717 33735 nil 33735 33736 (face font-lock-string-face) 33736 33738 (face font-lock-constant-face) 33738 33743 (face font-lock-variable-name-face) 33743 33788 (face font-lock-constant-face) 33788 33789 (face font-lock-string-face) 33789 33807 nil 33807 33808 (face font-lock-string-face) 33808 33810 (face font-lock-constant-face) 33810 33811 (face font-lock-string-face) 33811 33829 nil 33829 33830 (face font-lock-string-face) 33830 33833 (face font-lock-constant-face) 33833 33840 (face font-lock-variable-name-face) 33840 33841 (face font-lock-constant-face) 33841 33842 (face font-lock-string-face) 33842 33860 nil 33860 33861 (face font-lock-string-face) 33861 33864 (face font-lock-constant-face) 33864 33872 (face font-lock-variable-name-face) 33872 33873 (face font-lock-constant-face) 33873 33874 (face font-lock-string-face) 33874 33952 nil 33952 33953 (face font-lock-string-face) 33953 33964 (face font-lock-keyword-face) 33964 33965 (face font-lock-string-face) 33965 33967 nil 33967 33968 (face font-lock-string-face) 33968 33978 (face font-lock-function-name-face) 33978 33979 (face font-lock-string-face) 33979 33991 nil 33991 33992 (face font-lock-string-face) 33992 33996 (face font-lock-keyword-face) 33996 33997 (face font-lock-string-face) 33997 33999 nil 33999 34000 (face font-lock-string-face) 34000 34004 (face font-lock-type-face) 34004 34005 (face font-lock-string-face) 34005 34017 nil 34017 34018 (face font-lock-string-face) 34018 34030 (face font-lock-keyword-face) 34030 34031 (face font-lock-string-face) 34031 34035 nil 34035 34036 (face font-lock-string-face) 34036 34062 (face font-lock-function-name-face) 34062 34063 (face font-lock-string-face) 34063 34077 nil 34077 34078 (face font-lock-string-face) 34078 34087 (face font-lock-keyword-face) 34087 34088 (face font-lock-string-face) 34088 34104 nil 34104 34105 (face font-lock-string-face) 34105 34117 (face font-lock-variable-name-face) 34117 34118 (face font-lock-string-face) 34118 34120 nil 34120 34121 (face font-lock-string-face) 34121 34126 (face font-lock-variable-name-face) 34126 34127 (face font-lock-string-face) 34127 34141 nil 34141 34142 (face font-lock-string-face) 34142 34153 (face font-lock-variable-name-face) 34153 34154 (face font-lock-string-face) 34154 34156 nil 34156 34157 (face font-lock-string-face) 34157 34174 (face font-lock-variable-name-face) 34174 34175 (face font-lock-string-face) 34175 34200 nil 34200 34201 (face font-lock-string-face) 34201 34209 (face font-lock-keyword-face) 34209 34210 (face font-lock-string-face) 34210 34214 nil 34214 34215 (face font-lock-string-face) 34215 34233 (face font-lock-constant-face) 34233 34234 (face font-lock-string-face) 34234 34268 nil 34268 34287 (face font-lock-comment-face) 34287 34293 nil 34293 34365 (face font-lock-comment-face) 34365 34371 nil 34371 34372 (face font-lock-string-face) 34372 34379 (face font-lock-keyword-face) 34379 34380 (face font-lock-string-face) 34380 34404 nil 34404 34405 (face font-lock-string-face) 34405 34416 (face font-lock-keyword-face) 34416 34417 (face font-lock-string-face) 34417 34419 nil 34419 34420 (face font-lock-string-face) 34420 34436 (face font-lock-function-name-face) 34436 34437 (face font-lock-string-face) 34437 34449 nil 34449 34450 (face font-lock-string-face) 34450 34454 (face font-lock-keyword-face) 34454 34455 (face font-lock-string-face) 34455 34457 nil 34457 34458 (face font-lock-string-face) 34458 34468 (face font-lock-type-face) 34468 34469 (face font-lock-string-face) 34469 34481 nil 34481 34482 (face font-lock-string-face) 34482 34494 (face font-lock-keyword-face) 34494 34495 (face font-lock-string-face) 34495 34511 nil 34511 34512 (face font-lock-string-face) 34512 34517 (face font-lock-function-name-face) 34517 34518 (face font-lock-string-face) 34518 34532 nil 34532 34533 (face font-lock-string-face) 34533 34551 (face font-lock-function-name-face) 34551 34552 (face font-lock-string-face) 34552 34566 nil 34566 34567 (face font-lock-string-face) 34567 34588 (face font-lock-function-name-face) 34588 34589 (face font-lock-string-face) 34589 34603 nil 34603 34604 (face font-lock-string-face) 34604 34630 (face font-lock-function-name-face) 34630 34631 (face font-lock-string-face) 34631 34645 nil 34645 34646 (face font-lock-string-face) 34646 34680 (face font-lock-function-name-face) 34680 34681 (face font-lock-string-face) 34681 34695 nil 34695 34696 (face font-lock-string-face) 34696 34730 (face font-lock-function-name-face) 34730 34731 (face font-lock-string-face) 34731 34745 nil 34745 34746 (face font-lock-string-face) 34746 34772 (face font-lock-function-name-face) 34772 34773 (face font-lock-string-face) 34773 34787 nil 34787 34788 (face font-lock-string-face) 34788 34827 (face font-lock-function-name-face) 34827 34828 (face font-lock-string-face) 34828 34853 nil 34853 34854 (face font-lock-string-face) 34854 34861 (face font-lock-keyword-face) 34861 34862 (face font-lock-string-face) 34862 34878 nil 34878 34879 (face font-lock-string-face) 34879 34904 (face font-lock-constant-face) 34904 34905 (face font-lock-string-face) 34905 34930 nil 34930 34931 (face font-lock-string-face) 34931 34941 (face font-lock-keyword-face) 34941 34942 (face font-lock-string-face) 34942 34959 nil 34959 34960 (face font-lock-string-face) 34960 34981 (face font-lock-variable-name-face) 34981 34982 (face font-lock-string-face) 34982 35000 nil 35000 35001 (face font-lock-string-face) 35001 35013 (face font-lock-keyword-face) 35013 35014 (face font-lock-string-face) 35014 35034 nil 35034 35077 (face font-lock-comment-face) 35077 35093 nil 35093 35123 (face font-lock-comment-face) 35123 35139 nil 35139 35164 (face font-lock-comment-face) 35164 35180 nil 35180 35194 (face font-lock-comment-face) 35194 35210 nil 35210 35211 (face font-lock-string-face) 35211 35240 (face font-lock-function-name-face) 35240 35241 (face font-lock-string-face) 35241 35274 nil 35274 35275 (face font-lock-string-face) 35275 35285 (face font-lock-keyword-face) 35285 35286 (face font-lock-string-face) 35286 35307 nil 35307 35308 (face font-lock-string-face) 35308 35329 (face font-lock-variable-name-face) 35329 35330 (face font-lock-string-face) 35330 35352 nil 35352 35353 (face font-lock-string-face) 35353 35365 (face font-lock-keyword-face) 35365 35366 (face font-lock-string-face) 35366 35390 nil 35390 35391 (face font-lock-string-face) 35391 35432 (face font-lock-function-name-face) 35432 35433 (face font-lock-string-face) 35433 35553 nil 35553 35554 (face font-lock-string-face) 35554 35565 (face font-lock-keyword-face) 35565 35566 (face font-lock-string-face) 35566 35568 nil 35568 35569 (face font-lock-string-face) 35569 35592 (face font-lock-function-name-face) 35592 35593 (face font-lock-string-face) 35593 35605 nil 35605 35606 (face font-lock-string-face) 35606 35610 (face font-lock-keyword-face) 35610 35611 (face font-lock-string-face) 35611 35613 nil 35613 35614 (face font-lock-string-face) 35614 35624 (face font-lock-type-face) 35624 35625 (face font-lock-string-face) 35625 35637 nil 35637 35638 (face font-lock-string-face) 35638 35650 (face font-lock-keyword-face) 35650 35651 (face font-lock-string-face) 35651 35667 nil 35667 35668 (face font-lock-string-face) 35668 35673 (face font-lock-function-name-face) 35673 35674 (face font-lock-string-face) 35674 35688 nil 35688 35689 (face font-lock-string-face) 35689 35707 (face font-lock-function-name-face) 35707 35708 (face font-lock-string-face) 35708 35722 nil 35722 35723 (face font-lock-string-face) 35723 35757 (face font-lock-function-name-face) 35757 35758 (face font-lock-string-face) 35758 35772 nil 35772 35773 (face font-lock-string-face) 35773 35799 (face font-lock-function-name-face) 35799 35800 (face font-lock-string-face) 35800 35814 nil 35814 35815 (face font-lock-string-face) 35815 35841 (face font-lock-function-name-face) 35841 35842 (face font-lock-string-face) 35842 35856 nil 35856 35857 (face font-lock-string-face) 35857 35896 (face font-lock-function-name-face) 35896 35897 (face font-lock-string-face) 35897 35922 nil 35922 35923 (face font-lock-string-face) 35923 35930 (face font-lock-keyword-face) 35930 35931 (face font-lock-string-face) 35931 35947 nil 35947 35948 (face font-lock-string-face) 35948 35970 (face font-lock-constant-face) 35970 35971 (face font-lock-string-face) 35971 35985 nil 35985 35986 (face font-lock-string-face) 35986 36011 (face font-lock-constant-face) 36011 36012 (face font-lock-string-face) 36012 36026 nil 36026 36027 (face font-lock-string-face) 36027 36060 (face font-lock-constant-face) 36060 36061 (face font-lock-string-face) 36061 36075 nil 36075 36076 (face font-lock-string-face) 36076 36117 (face font-lock-constant-face) 36117 36118 (face font-lock-string-face) 36118 36143 nil 36143 36144 (face font-lock-string-face) 36144 36154 (face font-lock-keyword-face) 36154 36155 (face font-lock-string-face) 36155 36172 nil 36172 36173 (face font-lock-string-face) 36173 36198 (face font-lock-variable-name-face) 36198 36199 (face font-lock-string-face) 36199 36217 nil 36217 36218 (face font-lock-string-face) 36218 36228 (face font-lock-keyword-face) 36228 36229 (face font-lock-string-face) 36229 36250 nil 36250 36251 (face font-lock-string-face) 36251 36272 (face font-lock-variable-name-face) 36272 36273 (face font-lock-string-face) 36273 36295 nil 36295 36296 (face font-lock-string-face) 36296 36308 (face font-lock-keyword-face) 36308 36309 (face font-lock-string-face) 36309 36333 nil 36333 36334 (face font-lock-string-face) 36334 36375 (face font-lock-function-name-face) 36375 36376 (face font-lock-string-face) 36376 36496 nil 36496 36497 (face font-lock-string-face) 36497 36508 (face font-lock-keyword-face) 36508 36509 (face font-lock-string-face) 36509 36511 nil 36511 36512 (face font-lock-string-face) 36512 36524 (face font-lock-function-name-face) 36524 36525 (face font-lock-string-face) 36525 36537 nil 36537 36538 (face font-lock-string-face) 36538 36542 (face font-lock-keyword-face) 36542 36543 (face font-lock-string-face) 36543 36545 nil 36545 36546 (face font-lock-string-face) 36546 36556 (face font-lock-type-face) 36556 36557 (face font-lock-string-face) 36557 36569 nil 36569 36570 (face font-lock-string-face) 36570 36582 (face font-lock-keyword-face) 36582 36583 (face font-lock-string-face) 36583 36599 nil 36599 36600 (face font-lock-string-face) 36600 36605 (face font-lock-function-name-face) 36605 36606 (face font-lock-string-face) 36606 36620 nil 36620 36621 (face font-lock-string-face) 36621 36642 (face font-lock-function-name-face) 36642 36643 (face font-lock-string-face) 36643 36657 nil 36657 36658 (face font-lock-string-face) 36658 36697 (face font-lock-function-name-face) 36697 36698 (face font-lock-string-face) 36698 36723 nil 36723 36724 (face font-lock-string-face) 36724 36731 (face font-lock-keyword-face) 36731 36732 (face font-lock-string-face) 36732 36748 nil 36748 36749 (face font-lock-string-face) 36749 36782 (face font-lock-constant-face) 36782 36783 (face font-lock-string-face) 36783 36829 nil 36829 36830 (face font-lock-string-face) 36830 36841 (face font-lock-keyword-face) 36841 36842 (face font-lock-string-face) 36842 36844 nil 36844 36845 (face font-lock-string-face) 36845 36856 (face font-lock-function-name-face) 36856 36857 (face font-lock-string-face) 36857 36869 nil 36869 36870 (face font-lock-string-face) 36870 36874 (face font-lock-keyword-face) 36874 36875 (face font-lock-string-face) 36875 36877 nil 36877 36878 (face font-lock-string-face) 36878 36888 (face font-lock-type-face) 36888 36889 (face font-lock-string-face) 36889 36901 nil 36901 36902 (face font-lock-string-face) 36902 36914 (face font-lock-keyword-face) 36914 36915 (face font-lock-string-face) 36915 36931 nil 36931 36932 (face font-lock-string-face) 36932 36937 (face font-lock-function-name-face) 36937 36938 (face font-lock-string-face) 36938 36952 nil 36952 36953 (face font-lock-string-face) 36953 36974 (face font-lock-function-name-face) 36974 36975 (face font-lock-string-face) 36975 36989 nil 36989 36990 (face font-lock-string-face) 36990 37029 (face font-lock-function-name-face) 37029 37030 (face font-lock-string-face) 37030 37055 nil 37055 37056 (face font-lock-string-face) 37056 37063 (face font-lock-keyword-face) 37063 37064 (face font-lock-string-face) 37064 37080 nil 37080 37081 (face font-lock-string-face) 37081 37113 (face font-lock-constant-face) 37113 37114 (face font-lock-string-face) 37114 37163 nil)
diff --git a/node_modules/node-gyp/gyp/tools/graphviz.py b/node_modules/node-gyp/gyp/tools/graphviz.py
new file mode 100644
index 0000000..f19426b
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/graphviz.py
@@ -0,0 +1,102 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2011 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Using the JSON dumped by the dump-dependency-json generator,
+generate input suitable for graphviz to render a dependency graph of
+targets."""
+
+
+import collections
+import json
+import sys
+
+
+def ParseTarget(target):
+    target, _, suffix = target.partition("#")
+    filename, _, target = target.partition(":")
+    return filename, target, suffix
+
+
+def LoadEdges(filename, targets):
+    """Load the edges map from the dump file, and filter it to only
+  show targets in |targets| and their depedendents."""
+
+    file = open("dump.json")
+    edges = json.load(file)
+    file.close()
+
+    # Copy out only the edges we're interested in from the full edge list.
+    target_edges = {}
+    to_visit = targets[:]
+    while to_visit:
+        src = to_visit.pop()
+        if src in target_edges:
+            continue
+        target_edges[src] = edges[src]
+        to_visit.extend(edges[src])
+
+    return target_edges
+
+
+def WriteGraph(edges):
+    """Print a graphviz graph to stdout.
+  |edges| is a map of target to a list of other targets it depends on."""
+
+    # Bucket targets by file.
+    files = collections.defaultdict(list)
+    for src, dst in edges.items():
+        build_file, target_name, toolset = ParseTarget(src)
+        files[build_file].append(src)
+
+    print("digraph D {")
+    print("  fontsize=8")  # Used by subgraphs.
+    print("  node [fontsize=8]")
+
+    # Output nodes by file.  We must first write out each node within
+    # its file grouping before writing out any edges that may refer
+    # to those nodes.
+    for filename, targets in files.items():
+        if len(targets) == 1:
+            # If there's only one node for this file, simplify
+            # the display by making it a box without an internal node.
+            target = targets[0]
+            build_file, target_name, toolset = ParseTarget(target)
+            print(
+                f'  "{target}" [shape=box, label="{filename}\\n{target_name}"]'
+            )
+        else:
+            # Group multiple nodes together in a subgraph.
+            print('  subgraph "cluster_%s" {' % filename)
+            print('    label = "%s"' % filename)
+            for target in targets:
+                build_file, target_name, toolset = ParseTarget(target)
+                print(f'    "{target}" [label="{target_name}"]')
+            print("  }")
+
+    # Now that we've placed all the nodes within subgraphs, output all
+    # the edges between nodes.
+    for src, dsts in edges.items():
+        for dst in dsts:
+            print(f'  "{src}" -> "{dst}"')
+
+    print("}")
+
+
+def main():
+    if len(sys.argv) < 2:
+        print(__doc__, file=sys.stderr)
+        print(file=sys.stderr)
+        print("usage: %s target1 target2..." % (sys.argv[0]), file=sys.stderr)
+        return 1
+
+    edges = LoadEdges("dump.json", sys.argv[1:])
+
+    WriteGraph(edges)
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/node_modules/node-gyp/gyp/tools/pretty_gyp.py b/node_modules/node-gyp/gyp/tools/pretty_gyp.py
new file mode 100644
index 0000000..4ffa444
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/pretty_gyp.py
@@ -0,0 +1,156 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Pretty-prints the contents of a GYP file."""
+
+
+import sys
+import re
+
+
+# Regex to remove comments when we're counting braces.
+COMMENT_RE = re.compile(r"\s*#.*")
+
+# Regex to remove quoted strings when we're counting braces.
+# It takes into account quoted quotes, and makes sure that the quotes match.
+# NOTE: It does not handle quotes that span more than one line, or
+# cases where an escaped quote is preceded by an escaped backslash.
+QUOTE_RE_STR = r'(?P<q>[\'"])(.*?)(?<![^\\][\\])(?P=q)'
+QUOTE_RE = re.compile(QUOTE_RE_STR)
+
+
+def comment_replace(matchobj):
+    return matchobj.group(1) + matchobj.group(2) + "#" * len(matchobj.group(3))
+
+
+def mask_comments(input):
+    """Mask the quoted strings so we skip braces inside quoted strings."""
+    search_re = re.compile(r"(.*?)(#)(.*)")
+    return [search_re.sub(comment_replace, line) for line in input]
+
+
+def quote_replace(matchobj):
+    return "{}{}{}{}".format(
+        matchobj.group(1),
+        matchobj.group(2),
+        "x" * len(matchobj.group(3)),
+        matchobj.group(2),
+    )
+
+
+def mask_quotes(input):
+    """Mask the quoted strings so we skip braces inside quoted strings."""
+    search_re = re.compile(r"(.*?)" + QUOTE_RE_STR)
+    return [search_re.sub(quote_replace, line) for line in input]
+
+
+def do_split(input, masked_input, search_re):
+    output = []
+    mask_output = []
+    for (line, masked_line) in zip(input, masked_input):
+        m = search_re.match(masked_line)
+        while m:
+            split = len(m.group(1))
+            line = line[:split] + r"\n" + line[split:]
+            masked_line = masked_line[:split] + r"\n" + masked_line[split:]
+            m = search_re.match(masked_line)
+        output.extend(line.split(r"\n"))
+        mask_output.extend(masked_line.split(r"\n"))
+    return (output, mask_output)
+
+
+def split_double_braces(input):
+    """Masks out the quotes and comments, and then splits appropriate
+  lines (lines that matche the double_*_brace re's above) before
+  indenting them below.
+
+  These are used to split lines which have multiple braces on them, so
+  that the indentation looks prettier when all laid out (e.g. closing
+  braces make a nice diagonal line).
+  """
+    double_open_brace_re = re.compile(r"(.*?[\[\{\(,])(\s*)([\[\{\(])")
+    double_close_brace_re = re.compile(r"(.*?[\]\}\)],?)(\s*)([\]\}\)])")
+
+    masked_input = mask_quotes(input)
+    masked_input = mask_comments(masked_input)
+
+    (output, mask_output) = do_split(input, masked_input, double_open_brace_re)
+    (output, mask_output) = do_split(output, mask_output, double_close_brace_re)
+
+    return output
+
+
+def count_braces(line):
+    """keeps track of the number of braces on a given line and returns the result.
+
+  It starts at zero and subtracts for closed braces, and adds for open braces.
+  """
+    open_braces = ["[", "(", "{"]
+    close_braces = ["]", ")", "}"]
+    closing_prefix_re = re.compile(r"(.*?[^\s\]\}\)]+.*?)([\]\}\)],?)\s*$")
+    cnt = 0
+    stripline = COMMENT_RE.sub(r"", line)
+    stripline = QUOTE_RE.sub(r"''", stripline)
+    for char in stripline:
+        for brace in open_braces:
+            if char == brace:
+                cnt += 1
+        for brace in close_braces:
+            if char == brace:
+                cnt -= 1
+
+    after = False
+    if cnt > 0:
+        after = True
+
+    # This catches the special case of a closing brace having something
+    # other than just whitespace ahead of it -- we don't want to
+    # unindent that until after this line is printed so it stays with
+    # the previous indentation level.
+    if cnt < 0 and closing_prefix_re.match(stripline):
+        after = True
+    return (cnt, after)
+
+
+def prettyprint_input(lines):
+    """Does the main work of indenting the input based on the brace counts."""
+    indent = 0
+    basic_offset = 2
+    for line in lines:
+        if COMMENT_RE.match(line):
+            print(line)
+        else:
+            line = line.strip("\r\n\t ")  # Otherwise doesn't strip \r on Unix.
+            if len(line) > 0:
+                (brace_diff, after) = count_braces(line)
+                if brace_diff != 0:
+                    if after:
+                        print(" " * (basic_offset * indent) + line)
+                        indent += brace_diff
+                    else:
+                        indent += brace_diff
+                        print(" " * (basic_offset * indent) + line)
+                else:
+                    print(" " * (basic_offset * indent) + line)
+            else:
+                print("")
+
+
+def main():
+    if len(sys.argv) > 1:
+        data = open(sys.argv[1]).read().splitlines()
+    else:
+        data = sys.stdin.read().splitlines()
+    # Split up the double braces.
+    lines = split_double_braces(data)
+
+    # Indent and print the output.
+    prettyprint_input(lines)
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/node_modules/node-gyp/gyp/tools/pretty_sln.py b/node_modules/node-gyp/gyp/tools/pretty_sln.py
new file mode 100644
index 0000000..6ca0cd1
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/pretty_sln.py
@@ -0,0 +1,181 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Prints the information in a sln file in a diffable way.
+
+   It first outputs each projects in alphabetical order with their
+   dependencies.
+
+   Then it outputs a possible build order.
+"""
+
+
+import os
+import re
+import sys
+import pretty_vcproj
+
+__author__ = "nsylvain (Nicolas Sylvain)"
+
+
+def BuildProject(project, built, projects, deps):
+    # if all dependencies are done, we can build it, otherwise we try to build the
+    # dependency.
+    # This is not infinite-recursion proof.
+    for dep in deps[project]:
+        if dep not in built:
+            BuildProject(dep, built, projects, deps)
+    print(project)
+    built.append(project)
+
+
+def ParseSolution(solution_file):
+    # All projects, their clsid and paths.
+    projects = dict()
+
+    # A list of dependencies associated with a project.
+    dependencies = dict()
+
+    # Regular expressions that matches the SLN format.
+    # The first line of a project definition.
+    begin_project = re.compile(
+        r'^Project\("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942'
+        r'}"\) = "(.*)", "(.*)", "(.*)"$'
+    )
+    # The last line of a project definition.
+    end_project = re.compile("^EndProject$")
+    # The first line of a dependency list.
+    begin_dep = re.compile(r"ProjectSection\(ProjectDependencies\) = postProject$")
+    # The last line of a dependency list.
+    end_dep = re.compile("EndProjectSection$")
+    # A line describing a dependency.
+    dep_line = re.compile(" *({.*}) = ({.*})$")
+
+    in_deps = False
+    solution = open(solution_file)
+    for line in solution:
+        results = begin_project.search(line)
+        if results:
+            # Hack to remove icu because the diff is too different.
+            if results.group(1).find("icu") != -1:
+                continue
+            # We remove "_gyp" from the names because it helps to diff them.
+            current_project = results.group(1).replace("_gyp", "")
+            projects[current_project] = [
+                results.group(2).replace("_gyp", ""),
+                results.group(3),
+                results.group(2),
+            ]
+            dependencies[current_project] = []
+            continue
+
+        results = end_project.search(line)
+        if results:
+            current_project = None
+            continue
+
+        results = begin_dep.search(line)
+        if results:
+            in_deps = True
+            continue
+
+        results = end_dep.search(line)
+        if results:
+            in_deps = False
+            continue
+
+        results = dep_line.search(line)
+        if results and in_deps and current_project:
+            dependencies[current_project].append(results.group(1))
+            continue
+
+    # Change all dependencies clsid to name instead.
+    for project in dependencies:
+        # For each dependencies in this project
+        new_dep_array = []
+        for dep in dependencies[project]:
+            # Look for the project name matching this cldis
+            for project_info in projects:
+                if projects[project_info][1] == dep:
+                    new_dep_array.append(project_info)
+        dependencies[project] = sorted(new_dep_array)
+
+    return (projects, dependencies)
+
+
+def PrintDependencies(projects, deps):
+    print("---------------------------------------")
+    print("Dependencies for all projects")
+    print("---------------------------------------")
+    print("--                                   --")
+
+    for (project, dep_list) in sorted(deps.items()):
+        print("Project : %s" % project)
+        print("Path : %s" % projects[project][0])
+        if dep_list:
+            for dep in dep_list:
+                print("  - %s" % dep)
+        print("")
+
+    print("--                                   --")
+
+
+def PrintBuildOrder(projects, deps):
+    print("---------------------------------------")
+    print("Build order                            ")
+    print("---------------------------------------")
+    print("--                                   --")
+
+    built = []
+    for (project, _) in sorted(deps.items()):
+        if project not in built:
+            BuildProject(project, built, projects, deps)
+
+    print("--                                   --")
+
+
+def PrintVCProj(projects):
+
+    for project in projects:
+        print("-------------------------------------")
+        print("-------------------------------------")
+        print(project)
+        print(project)
+        print(project)
+        print("-------------------------------------")
+        print("-------------------------------------")
+
+        project_path = os.path.abspath(
+            os.path.join(os.path.dirname(sys.argv[1]), projects[project][2])
+        )
+
+        pretty = pretty_vcproj
+        argv = [
+            "",
+            project_path,
+            "$(SolutionDir)=%s\\" % os.path.dirname(sys.argv[1]),
+        ]
+        argv.extend(sys.argv[3:])
+        pretty.main(argv)
+
+
+def main():
+    # check if we have exactly 1 parameter.
+    if len(sys.argv) < 2:
+        print('Usage: %s "c:\\path\\to\\project.sln"' % sys.argv[0])
+        return 1
+
+    (projects, deps) = ParseSolution(sys.argv[1])
+    PrintDependencies(projects, deps)
+    PrintBuildOrder(projects, deps)
+
+    if "--recursive" in sys.argv:
+        PrintVCProj(projects)
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/node_modules/node-gyp/gyp/tools/pretty_vcproj.py b/node_modules/node-gyp/gyp/tools/pretty_vcproj.py
new file mode 100644
index 0000000..00d32de
--- /dev/null
+++ b/node_modules/node-gyp/gyp/tools/pretty_vcproj.py
@@ -0,0 +1,339 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Make the format of a vcproj really pretty.
+
+   This script normalize and sort an xml. It also fetches all the properties
+   inside linked vsprops and include them explicitly in the vcproj.
+
+   It outputs the resulting xml to stdout.
+"""
+
+
+import os
+import sys
+
+from xml.dom.minidom import parse
+from xml.dom.minidom import Node
+
+__author__ = "nsylvain (Nicolas Sylvain)"
+ARGUMENTS = None
+REPLACEMENTS = dict()
+
+
+def cmp(x, y):
+    return (x > y) - (x < y)
+
+
+class CmpTuple:
+    """Compare function between 2 tuple."""
+
+    def __call__(self, x, y):
+        return cmp(x[0], y[0])
+
+
+class CmpNode:
+    """Compare function between 2 xml nodes."""
+
+    def __call__(self, x, y):
+        def get_string(node):
+            node_string = "node"
+            node_string += node.nodeName
+            if node.nodeValue:
+                node_string += node.nodeValue
+
+            if node.attributes:
+                # We first sort by name, if present.
+                node_string += node.getAttribute("Name")
+
+                all_nodes = []
+                for (name, value) in node.attributes.items():
+                    all_nodes.append((name, value))
+
+                all_nodes.sort(CmpTuple())
+                for (name, value) in all_nodes:
+                    node_string += name
+                    node_string += value
+
+            return node_string
+
+        return cmp(get_string(x), get_string(y))
+
+
+def PrettyPrintNode(node, indent=0):
+    if node.nodeType == Node.TEXT_NODE:
+        if node.data.strip():
+            print("{}{}".format(" " * indent, node.data.strip()))
+        return
+
+    if node.childNodes:
+        node.normalize()
+    # Get the number of attributes
+    attr_count = 0
+    if node.attributes:
+        attr_count = node.attributes.length
+
+    # Print the main tag
+    if attr_count == 0:
+        print("{}<{}>".format(" " * indent, node.nodeName))
+    else:
+        print("{}<{}".format(" " * indent, node.nodeName))
+
+        all_attributes = []
+        for (name, value) in node.attributes.items():
+            all_attributes.append((name, value))
+            all_attributes.sort(CmpTuple())
+        for (name, value) in all_attributes:
+            print('{}  {}="{}"'.format(" " * indent, name, value))
+        print("%s>" % (" " * indent))
+    if node.nodeValue:
+        print("{}  {}".format(" " * indent, node.nodeValue))
+
+    for sub_node in node.childNodes:
+        PrettyPrintNode(sub_node, indent=indent + 2)
+    print("{}</{}>".format(" " * indent, node.nodeName))
+
+
+def FlattenFilter(node):
+    """Returns a list of all the node and sub nodes."""
+    node_list = []
+
+    if node.attributes and node.getAttribute("Name") == "_excluded_files":
+        # We don't add the "_excluded_files" filter.
+        return []
+
+    for current in node.childNodes:
+        if current.nodeName == "Filter":
+            node_list.extend(FlattenFilter(current))
+        else:
+            node_list.append(current)
+
+    return node_list
+
+
+def FixFilenames(filenames, current_directory):
+    new_list = []
+    for filename in filenames:
+        if filename:
+            for key in REPLACEMENTS:
+                filename = filename.replace(key, REPLACEMENTS[key])
+            os.chdir(current_directory)
+            filename = filename.strip("\"' ")
+            if filename.startswith("$"):
+                new_list.append(filename)
+            else:
+                new_list.append(os.path.abspath(filename))
+    return new_list
+
+
+def AbsoluteNode(node):
+    """Makes all the properties we know about in this node absolute."""
+    if node.attributes:
+        for (name, value) in node.attributes.items():
+            if name in [
+                "InheritedPropertySheets",
+                "RelativePath",
+                "AdditionalIncludeDirectories",
+                "IntermediateDirectory",
+                "OutputDirectory",
+                "AdditionalLibraryDirectories",
+            ]:
+                # We want to fix up these paths
+                path_list = value.split(";")
+                new_list = FixFilenames(path_list, os.path.dirname(ARGUMENTS[1]))
+                node.setAttribute(name, ";".join(new_list))
+            if not value:
+                node.removeAttribute(name)
+
+
+def CleanupVcproj(node):
+    """For each sub node, we call recursively this function."""
+    for sub_node in node.childNodes:
+        AbsoluteNode(sub_node)
+        CleanupVcproj(sub_node)
+
+    # Normalize the node, and remove all extraneous whitespaces.
+    for sub_node in node.childNodes:
+        if sub_node.nodeType == Node.TEXT_NODE:
+            sub_node.data = sub_node.data.replace("\r", "")
+            sub_node.data = sub_node.data.replace("\n", "")
+            sub_node.data = sub_node.data.rstrip()
+
+    # Fix all the semicolon separated attributes to be sorted, and we also
+    # remove the dups.
+    if node.attributes:
+        for (name, value) in node.attributes.items():
+            sorted_list = sorted(value.split(";"))
+            unique_list = []
+            for i in sorted_list:
+                if not unique_list.count(i):
+                    unique_list.append(i)
+            node.setAttribute(name, ";".join(unique_list))
+            if not value:
+                node.removeAttribute(name)
+
+    if node.childNodes:
+        node.normalize()
+
+    # For each node, take a copy, and remove it from the list.
+    node_array = []
+    while node.childNodes and node.childNodes[0]:
+        # Take a copy of the node and remove it from the list.
+        current = node.childNodes[0]
+        node.removeChild(current)
+
+        # If the child is a filter, we want to append all its children
+        # to this same list.
+        if current.nodeName == "Filter":
+            node_array.extend(FlattenFilter(current))
+        else:
+            node_array.append(current)
+
+    # Sort the list.
+    node_array.sort(CmpNode())
+
+    # Insert the nodes in the correct order.
+    for new_node in node_array:
+        # But don't append empty tool node.
+        if new_node.nodeName == "Tool":
+            if new_node.attributes and new_node.attributes.length == 1:
+                # This one was empty.
+                continue
+        if new_node.nodeName == "UserMacro":
+            continue
+        node.appendChild(new_node)
+
+
+def GetConfiguationNodes(vcproj):
+    # TODO(nsylvain): Find a better way to navigate the xml.
+    nodes = []
+    for node in vcproj.childNodes:
+        if node.nodeName == "Configurations":
+            for sub_node in node.childNodes:
+                if sub_node.nodeName == "Configuration":
+                    nodes.append(sub_node)
+
+    return nodes
+
+
+def GetChildrenVsprops(filename):
+    dom = parse(filename)
+    if dom.documentElement.attributes:
+        vsprops = dom.documentElement.getAttribute("InheritedPropertySheets")
+        return FixFilenames(vsprops.split(";"), os.path.dirname(filename))
+    return []
+
+
+def SeekToNode(node1, child2):
+    # A text node does not have properties.
+    if child2.nodeType == Node.TEXT_NODE:
+        return None
+
+    # Get the name of the current node.
+    current_name = child2.getAttribute("Name")
+    if not current_name:
+        # There is no name. We don't know how to merge.
+        return None
+
+    # Look through all the nodes to find a match.
+    for sub_node in node1.childNodes:
+        if sub_node.nodeName == child2.nodeName:
+            name = sub_node.getAttribute("Name")
+            if name == current_name:
+                return sub_node
+
+    # No match. We give up.
+    return None
+
+
+def MergeAttributes(node1, node2):
+    # No attributes to merge?
+    if not node2.attributes:
+        return
+
+    for (name, value2) in node2.attributes.items():
+        # Don't merge the 'Name' attribute.
+        if name == "Name":
+            continue
+        value1 = node1.getAttribute(name)
+        if value1:
+            # The attribute exist in the main node. If it's equal, we leave it
+            # untouched, otherwise we concatenate it.
+            if value1 != value2:
+                node1.setAttribute(name, ";".join([value1, value2]))
+        else:
+            # The attribute does not exist in the main node. We append this one.
+            node1.setAttribute(name, value2)
+
+        # If the attribute was a property sheet attributes, we remove it, since
+        # they are useless.
+        if name == "InheritedPropertySheets":
+            node1.removeAttribute(name)
+
+
+def MergeProperties(node1, node2):
+    MergeAttributes(node1, node2)
+    for child2 in node2.childNodes:
+        child1 = SeekToNode(node1, child2)
+        if child1:
+            MergeProperties(child1, child2)
+        else:
+            node1.appendChild(child2.cloneNode(True))
+
+
+def main(argv):
+    """Main function of this vcproj prettifier."""
+    global ARGUMENTS
+    ARGUMENTS = argv
+
+    # check if we have exactly 1 parameter.
+    if len(argv) < 2:
+        print(
+            'Usage: %s "c:\\path\\to\\vcproj.vcproj" [key1=value1] '
+            "[key2=value2]" % argv[0]
+        )
+        return 1
+
+    # Parse the keys
+    for i in range(2, len(argv)):
+        (key, value) = argv[i].split("=")
+        REPLACEMENTS[key] = value
+
+    # Open the vcproj and parse the xml.
+    dom = parse(argv[1])
+
+    # First thing we need to do is find the Configuration Node and merge them
+    # with the vsprops they include.
+    for configuration_node in GetConfiguationNodes(dom.documentElement):
+        # Get the property sheets associated with this configuration.
+        vsprops = configuration_node.getAttribute("InheritedPropertySheets")
+
+        # Fix the filenames to be absolute.
+        vsprops_list = FixFilenames(
+            vsprops.strip().split(";"), os.path.dirname(argv[1])
+        )
+
+        # Extend the list of vsprops with all vsprops contained in the current
+        # vsprops.
+        for current_vsprops in vsprops_list:
+            vsprops_list.extend(GetChildrenVsprops(current_vsprops))
+
+        # Now that we have all the vsprops, we need to merge them.
+        for current_vsprops in vsprops_list:
+            MergeProperties(configuration_node, parse(current_vsprops).documentElement)
+
+    # Now that everything is merged, we need to cleanup the xml.
+    CleanupVcproj(dom.documentElement)
+
+    # Finally, we use the prett xml function to print the vcproj back to the
+    # user.
+    # print dom.toprettyxml(newl="\n")
+    PrettyPrintNode(dom.documentElement)
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv))
diff --git a/node_modules/node-gyp/lib/Find-VisualStudio.cs b/node_modules/node-gyp/lib/Find-VisualStudio.cs
new file mode 100644
index 0000000..d2e45a7
--- /dev/null
+++ b/node_modules/node-gyp/lib/Find-VisualStudio.cs
@@ -0,0 +1,250 @@
+// Copyright 2017 - Refael Ackermann
+// Distributed under MIT style license
+// See accompanying file LICENSE at https://github.com/node4good/windows-autoconf
+
+// Usage:
+// powershell -ExecutionPolicy Unrestricted -Command "Add-Type -Path Find-VisualStudio.cs; [VisualStudioConfiguration.Main]::PrintJson()"
+// This script needs to be compatible with PowerShell v2 to run on Windows 2008R2 and Windows 7.
+
+using System;
+using System.Text;
+using System.Runtime.InteropServices;
+using System.Collections.Generic;
+
+namespace VisualStudioConfiguration
+{
+    [Flags]
+    public enum InstanceState : uint
+    {
+        None = 0,
+        Local = 1,
+        Registered = 2,
+        NoRebootRequired = 4,
+        NoErrors = 8,
+        Complete = 4294967295,
+    }
+
+    [Guid("6380BCFF-41D3-4B2E-8B2E-BF8A6810C848")]
+    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    [ComImport]
+    public interface IEnumSetupInstances
+    {
+
+        void Next([MarshalAs(UnmanagedType.U4), In] int celt,
+            [MarshalAs(UnmanagedType.LPArray, ArraySubType = UnmanagedType.Interface), Out] ISetupInstance[] rgelt,
+            [MarshalAs(UnmanagedType.U4)] out int pceltFetched);
+
+        void Skip([MarshalAs(UnmanagedType.U4), In] int celt);
+
+        void Reset();
+
+        [return: MarshalAs(UnmanagedType.Interface)]
+        IEnumSetupInstances Clone();
+    }
+
+    [Guid("42843719-DB4C-46C2-8E7C-64F1816EFD5B")]
+    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    [ComImport]
+    public interface ISetupConfiguration
+    {
+    }
+
+    [Guid("26AAB78C-4A60-49D6-AF3B-3C35BC93365D")]
+    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    [ComImport]
+    public interface ISetupConfiguration2 : ISetupConfiguration
+    {
+
+        [return: MarshalAs(UnmanagedType.Interface)]
+        IEnumSetupInstances EnumInstances();
+
+        [return: MarshalAs(UnmanagedType.Interface)]
+        ISetupInstance GetInstanceForCurrentProcess();
+
+        [return: MarshalAs(UnmanagedType.Interface)]
+        ISetupInstance GetInstanceForPath([MarshalAs(UnmanagedType.LPWStr), In] string path);
+
+        [return: MarshalAs(UnmanagedType.Interface)]
+        IEnumSetupInstances EnumAllInstances();
+    }
+
+    [Guid("B41463C3-8866-43B5-BC33-2B0676F7F42E")]
+    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    [ComImport]
+    public interface ISetupInstance
+    {
+    }
+
+    [Guid("89143C9A-05AF-49B0-B717-72E218A2185C")]
+    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    [ComImport]
+    public interface ISetupInstance2 : ISetupInstance
+    {
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetInstanceId();
+
+        [return: MarshalAs(UnmanagedType.Struct)]
+        System.Runtime.InteropServices.ComTypes.FILETIME GetInstallDate();
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetInstallationName();
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetInstallationPath();
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetInstallationVersion();
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetDisplayName([MarshalAs(UnmanagedType.U4), In] int lcid);
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetDescription([MarshalAs(UnmanagedType.U4), In] int lcid);
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string ResolvePath([MarshalAs(UnmanagedType.LPWStr), In] string pwszRelativePath);
+
+        [return: MarshalAs(UnmanagedType.U4)]
+        InstanceState GetState();
+
+        [return: MarshalAs(UnmanagedType.SafeArray, SafeArraySubType = VarEnum.VT_UNKNOWN)]
+        ISetupPackageReference[] GetPackages();
+
+        ISetupPackageReference GetProduct();
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetProductPath();
+
+        [return: MarshalAs(UnmanagedType.VariantBool)]
+        bool IsLaunchable();
+
+        [return: MarshalAs(UnmanagedType.VariantBool)]
+        bool IsComplete();
+
+        [return: MarshalAs(UnmanagedType.SafeArray, SafeArraySubType = VarEnum.VT_UNKNOWN)]
+        ISetupPropertyStore GetProperties();
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetEnginePath();
+    }
+
+    [Guid("DA8D8A16-B2B6-4487-A2F1-594CCCCD6BF5")]
+    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    [ComImport]
+    public interface ISetupPackageReference
+    {
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetId();
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetVersion();
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetChip();
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetLanguage();
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetBranch();
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetType();
+
+        [return: MarshalAs(UnmanagedType.BStr)]
+        string GetUniqueId();
+
+        [return: MarshalAs(UnmanagedType.VariantBool)]
+        bool GetIsExtension();
+    }
+
+    [Guid("c601c175-a3be-44bc-91f6-4568d230fc83")]
+    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    [ComImport]
+    public interface ISetupPropertyStore
+    {
+
+        [return: MarshalAs(UnmanagedType.SafeArray, SafeArraySubType = VarEnum.VT_BSTR)]
+        string[] GetNames();
+
+        object GetValue([MarshalAs(UnmanagedType.LPWStr), In] string pwszName);
+    }
+
+    [Guid("42843719-DB4C-46C2-8E7C-64F1816EFD5B")]
+    [CoClass(typeof(SetupConfigurationClass))]
+    [ComImport]
+    public interface SetupConfiguration : ISetupConfiguration2, ISetupConfiguration
+    {
+    }
+
+    [Guid("177F0C4A-1CD3-4DE7-A32C-71DBBB9FA36D")]
+    [ClassInterface(ClassInterfaceType.None)]
+    [ComImport]
+    public class SetupConfigurationClass
+    {
+    }
+
+    public static class Main
+    {
+        public static void PrintJson()
+        {
+            ISetupConfiguration query = new SetupConfiguration();
+            ISetupConfiguration2 query2 = (ISetupConfiguration2)query;
+            IEnumSetupInstances e = query2.EnumAllInstances();
+
+            int pceltFetched;
+            ISetupInstance2[] rgelt = new ISetupInstance2[1];
+            List<string> instances = new List<string>();
+            while (true)
+            {
+                e.Next(1, rgelt, out pceltFetched);
+                if (pceltFetched <= 0)
+                {
+                    Console.WriteLine(String.Format("[{0}]", string.Join(",", instances.ToArray())));
+                    return;
+                }
+
+                try
+                {
+                    instances.Add(InstanceJson(rgelt[0]));
+                }
+                catch (COMException)
+                {
+                    // Ignore instances that can't be queried.
+                }
+            }
+        }
+
+        private static string JsonString(string s)
+        {
+            return "\"" + s.Replace("\\", "\\\\").Replace("\"", "\\\"") + "\"";
+        }
+
+        private static string InstanceJson(ISetupInstance2 setupInstance2)
+        {
+            // Visual Studio component directory:
+            // https://docs.microsoft.com/en-us/visualstudio/install/workload-and-component-ids
+
+            StringBuilder json = new StringBuilder();
+            json.Append("{");
+
+            string path = JsonString(setupInstance2.GetInstallationPath());
+            json.Append(String.Format("\"path\":{0},", path));
+
+            string version = JsonString(setupInstance2.GetInstallationVersion());
+            json.Append(String.Format("\"version\":{0},", version));
+
+            List<string> packages = new List<string>();
+            foreach (ISetupPackageReference package in setupInstance2.GetPackages())
+            {
+                string id = JsonString(package.GetId());
+                packages.Add(id);
+            }
+            json.Append(String.Format("\"packages\":[{0}]", string.Join(",", packages.ToArray())));
+
+            json.Append("}");
+            return json.ToString();
+        }
+    }
+}
diff --git a/node_modules/node-gyp/lib/build.js b/node_modules/node-gyp/lib/build.js
new file mode 100644
index 0000000..c2388fb
--- /dev/null
+++ b/node_modules/node-gyp/lib/build.js
@@ -0,0 +1,204 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const path = require('path')
+const glob = require('glob')
+const log = require('npmlog')
+const which = require('which')
+const win = process.platform === 'win32'
+
+function build (gyp, argv, callback) {
+  var platformMake = 'make'
+  if (process.platform === 'aix') {
+    platformMake = 'gmake'
+  } else if (process.platform.indexOf('bsd') !== -1) {
+    platformMake = 'gmake'
+  } else if (win && argv.length > 0) {
+    argv = argv.map(function (target) {
+      return '/t:' + target
+    })
+  }
+
+  var makeCommand = gyp.opts.make || process.env.MAKE || platformMake
+  var command = win ? 'msbuild' : makeCommand
+  var jobs = gyp.opts.jobs || process.env.JOBS
+  var buildType
+  var config
+  var arch
+  var nodeDir
+  var guessedSolution
+
+  loadConfigGypi()
+
+  /**
+   * Load the "config.gypi" file that was generated during "configure".
+   */
+
+  function loadConfigGypi () {
+    var configPath = path.resolve('build', 'config.gypi')
+
+    fs.readFile(configPath, 'utf8', function (err, data) {
+      if (err) {
+        if (err.code === 'ENOENT') {
+          callback(new Error('You must run `node-gyp configure` first!'))
+        } else {
+          callback(err)
+        }
+        return
+      }
+      config = JSON.parse(data.replace(/#.+\n/, ''))
+
+      // get the 'arch', 'buildType', and 'nodeDir' vars from the config
+      buildType = config.target_defaults.default_configuration
+      arch = config.variables.target_arch
+      nodeDir = config.variables.nodedir
+
+      if ('debug' in gyp.opts) {
+        buildType = gyp.opts.debug ? 'Debug' : 'Release'
+      }
+      if (!buildType) {
+        buildType = 'Release'
+      }
+
+      log.verbose('build type', buildType)
+      log.verbose('architecture', arch)
+      log.verbose('node dev dir', nodeDir)
+
+      if (win) {
+        findSolutionFile()
+      } else {
+        doWhich()
+      }
+    })
+  }
+
+  /**
+   * On Windows, find the first build/*.sln file.
+   */
+
+  function findSolutionFile () {
+    glob('build/*.sln', function (err, files) {
+      if (err) {
+        return callback(err)
+      }
+      if (files.length === 0) {
+        return callback(new Error('Could not find *.sln file. Did you run "configure"?'))
+      }
+      guessedSolution = files[0]
+      log.verbose('found first Solution file', guessedSolution)
+      doWhich()
+    })
+  }
+
+  /**
+   * Uses node-which to locate the msbuild / make executable.
+   */
+
+  function doWhich () {
+    // On Windows use msbuild provided by node-gyp configure
+    if (win) {
+      if (!config.variables.msbuild_path) {
+        return callback(new Error(
+          'MSBuild is not set, please run `node-gyp configure`.'))
+      }
+      command = config.variables.msbuild_path
+      log.verbose('using MSBuild:', command)
+      doBuild()
+      return
+    }
+    // First make sure we have the build command in the PATH
+    which(command, function (err, execPath) {
+      if (err) {
+        // Some other error or 'make' not found on Unix, report that to the user
+        callback(err)
+        return
+      }
+      log.verbose('`which` succeeded for `' + command + '`', execPath)
+      doBuild()
+    })
+  }
+
+  /**
+   * Actually spawn the process and compile the module.
+   */
+
+  function doBuild () {
+    // Enable Verbose build
+    var verbose = log.levels[log.level] <= log.levels.verbose
+    var j
+
+    if (!win && verbose) {
+      argv.push('V=1')
+    }
+
+    if (win && !verbose) {
+      argv.push('/clp:Verbosity=minimal')
+    }
+
+    if (win) {
+      // Turn off the Microsoft logo on Windows
+      argv.push('/nologo')
+    }
+
+    // Specify the build type, Release by default
+    if (win) {
+      // Convert .gypi config target_arch to MSBuild /Platform
+      // Since there are many ways to state '32-bit Intel', default to it.
+      // N.B. msbuild's Condition string equality tests are case-insensitive.
+      var archLower = arch.toLowerCase()
+      var p = archLower === 'x64' ? 'x64'
+        : (archLower === 'arm' ? 'ARM'
+          : (archLower === 'arm64' ? 'ARM64' : 'Win32'))
+      argv.push('/p:Configuration=' + buildType + ';Platform=' + p)
+      if (jobs) {
+        j = parseInt(jobs, 10)
+        if (!isNaN(j) && j > 0) {
+          argv.push('/m:' + j)
+        } else if (jobs.toUpperCase() === 'MAX') {
+          argv.push('/m:' + require('os').cpus().length)
+        }
+      }
+    } else {
+      argv.push('BUILDTYPE=' + buildType)
+      // Invoke the Makefile in the 'build' dir.
+      argv.push('-C')
+      argv.push('build')
+      if (jobs) {
+        j = parseInt(jobs, 10)
+        if (!isNaN(j) && j > 0) {
+          argv.push('--jobs')
+          argv.push(j)
+        } else if (jobs.toUpperCase() === 'MAX') {
+          argv.push('--jobs')
+          argv.push(require('os').cpus().length)
+        }
+      }
+    }
+
+    if (win) {
+      // did the user specify their own .sln file?
+      var hasSln = argv.some(function (arg) {
+        return path.extname(arg) === '.sln'
+      })
+      if (!hasSln) {
+        argv.unshift(gyp.opts.solution || guessedSolution)
+      }
+    }
+
+    var proc = gyp.spawn(command, argv)
+    proc.on('exit', onExit)
+  }
+
+  function onExit (code, signal) {
+    if (code !== 0) {
+      return callback(new Error('`' + command + '` failed with exit code: ' + code))
+    }
+    if (signal) {
+      return callback(new Error('`' + command + '` got signal: ' + signal))
+    }
+    callback()
+  }
+}
+
+module.exports = build
+module.exports.usage = 'Invokes `' + (win ? 'msbuild' : 'make') + '` and builds the module'
diff --git a/node_modules/node-gyp/lib/clean.js b/node_modules/node-gyp/lib/clean.js
new file mode 100644
index 0000000..dbfa4db
--- /dev/null
+++ b/node_modules/node-gyp/lib/clean.js
@@ -0,0 +1,15 @@
+'use strict'
+
+const rm = require('rimraf')
+const log = require('npmlog')
+
+function clean (gyp, argv, callback) {
+  // Remove the 'build' dir
+  var buildDir = 'build'
+
+  log.verbose('clean', 'removing "%s" directory', buildDir)
+  rm(buildDir, callback)
+}
+
+module.exports = clean
+module.exports.usage = 'Removes any generated build files and the "out" dir'
diff --git a/node_modules/node-gyp/lib/configure.js b/node_modules/node-gyp/lib/configure.js
new file mode 100644
index 0000000..d9b8fe3
--- /dev/null
+++ b/node_modules/node-gyp/lib/configure.js
@@ -0,0 +1,294 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const path = require('path')
+const log = require('npmlog')
+const os = require('os')
+const processRelease = require('./process-release')
+const win = process.platform === 'win32'
+const findNodeDirectory = require('./find-node-directory')
+const createConfigGypi = require('./create-config-gypi')
+const msgFormat = require('util').format
+var findPython = require('./find-python')
+if (win) {
+  var findVisualStudio = require('./find-visualstudio')
+}
+
+function configure (gyp, argv, callback) {
+  var python
+  var buildDir = path.resolve('build')
+  var configNames = ['config.gypi', 'common.gypi']
+  var configs = []
+  var nodeDir
+  var release = processRelease(argv, gyp, process.version, process.release)
+
+  findPython(gyp.opts.python, function (err, found) {
+    if (err) {
+      callback(err)
+    } else {
+      python = found
+      getNodeDir()
+    }
+  })
+
+  function getNodeDir () {
+    // 'python' should be set by now
+    process.env.PYTHON = python
+
+    if (gyp.opts.nodedir) {
+      // --nodedir was specified. use that for the dev files
+      nodeDir = gyp.opts.nodedir.replace(/^~/, os.homedir())
+
+      log.verbose('get node dir', 'compiling against specified --nodedir dev files: %s', nodeDir)
+      createBuildDir()
+    } else {
+      // if no --nodedir specified, ensure node dependencies are installed
+      if ('v' + release.version !== process.version) {
+        // if --target was given, then determine a target version to compile for
+        log.verbose('get node dir', 'compiling against --target node version: %s', release.version)
+      } else {
+        // if no --target was specified then use the current host node version
+        log.verbose('get node dir', 'no --target version specified, falling back to host node version: %s', release.version)
+      }
+
+      if (!release.semver) {
+        // could not parse the version string with semver
+        return callback(new Error('Invalid version number: ' + release.version))
+      }
+
+      // If the tarball option is set, always remove and reinstall the headers
+      // into devdir. Otherwise only install if they're not already there.
+      gyp.opts.ensure = !gyp.opts.tarball
+
+      gyp.commands.install([release.version], function (err) {
+        if (err) {
+          return callback(err)
+        }
+        log.verbose('get node dir', 'target node version installed:', release.versionDir)
+        nodeDir = path.resolve(gyp.devDir, release.versionDir)
+        createBuildDir()
+      })
+    }
+  }
+
+  function createBuildDir () {
+    log.verbose('build dir', 'attempting to create "build" dir: %s', buildDir)
+    fs.mkdir(buildDir, { recursive: true }, function (err, isNew) {
+      if (err) {
+        return callback(err)
+      }
+      log.verbose(
+        'build dir', '"build" dir needed to be created?', isNew ? 'Yes' : 'No'
+      )
+      if (win) {
+        findVisualStudio(release.semver, gyp.opts.msvs_version,
+          createConfigFile)
+      } else {
+        createConfigFile()
+      }
+    })
+  }
+
+  function createConfigFile (err, vsInfo) {
+    if (err) {
+      return callback(err)
+    }
+    if (process.platform === 'win32') {
+      process.env.GYP_MSVS_VERSION = Math.min(vsInfo.versionYear, 2015)
+      process.env.GYP_MSVS_OVERRIDE_PATH = vsInfo.path
+    }
+    createConfigGypi({ gyp, buildDir, nodeDir, vsInfo }).then(configPath => {
+      configs.push(configPath)
+      findConfigs()
+    }).catch(err => {
+      callback(err)
+    })
+  }
+
+  function findConfigs () {
+    var name = configNames.shift()
+    if (!name) {
+      return runGyp()
+    }
+    var fullPath = path.resolve(name)
+
+    log.verbose(name, 'checking for gypi file: %s', fullPath)
+    fs.stat(fullPath, function (err) {
+      if (err) {
+        if (err.code === 'ENOENT') {
+          findConfigs() // check next gypi filename
+        } else {
+          callback(err)
+        }
+      } else {
+        log.verbose(name, 'found gypi file')
+        configs.push(fullPath)
+        findConfigs()
+      }
+    })
+  }
+
+  function runGyp (err) {
+    if (err) {
+      return callback(err)
+    }
+
+    if (!~argv.indexOf('-f') && !~argv.indexOf('--format')) {
+      if (win) {
+        log.verbose('gyp', 'gyp format was not specified; forcing "msvs"')
+        // force the 'make' target for non-Windows
+        argv.push('-f', 'msvs')
+      } else {
+        log.verbose('gyp', 'gyp format was not specified; forcing "make"')
+        // force the 'make' target for non-Windows
+        argv.push('-f', 'make')
+      }
+    }
+
+    // include all the ".gypi" files that were found
+    configs.forEach(function (config) {
+      argv.push('-I', config)
+    })
+
+    // For AIX and z/OS we need to set up the path to the exports file
+    // which contains the symbols needed for linking.
+    var nodeExpFile
+    if (process.platform === 'aix' || process.platform === 'os390') {
+      var ext = process.platform === 'aix' ? 'exp' : 'x'
+      var nodeRootDir = findNodeDirectory()
+      var candidates
+
+      if (process.platform === 'aix') {
+        candidates = [
+          'include/node/node',
+          'out/Release/node',
+          'out/Debug/node',
+          'node'
+        ].map(function (file) {
+          return file + '.' + ext
+        })
+      } else {
+        candidates = [
+          'out/Release/obj.target/libnode',
+          'out/Debug/obj.target/libnode',
+          'lib/libnode'
+        ].map(function (file) {
+          return file + '.' + ext
+        })
+      }
+
+      var logprefix = 'find exports file'
+      nodeExpFile = findAccessibleSync(logprefix, nodeRootDir, candidates)
+      if (nodeExpFile !== undefined) {
+        log.verbose(logprefix, 'Found exports file: %s', nodeExpFile)
+      } else {
+        var msg = msgFormat('Could not find node.%s file in %s', ext, nodeRootDir)
+        log.error(logprefix, 'Could not find exports file')
+        return callback(new Error(msg))
+      }
+    }
+
+    // this logic ported from the old `gyp_addon` python file
+    var gypScript = path.resolve(__dirname, '..', 'gyp', 'gyp_main.py')
+    var addonGypi = path.resolve(__dirname, '..', 'addon.gypi')
+    var commonGypi = path.resolve(nodeDir, 'include/node/common.gypi')
+    fs.stat(commonGypi, function (err) {
+      if (err) {
+        commonGypi = path.resolve(nodeDir, 'common.gypi')
+      }
+
+      var outputDir = 'build'
+      if (win) {
+        // Windows expects an absolute path
+        outputDir = buildDir
+      }
+      var nodeGypDir = path.resolve(__dirname, '..')
+
+      var nodeLibFile = path.join(nodeDir,
+        !gyp.opts.nodedir ? '<(target_arch)' : '$(Configuration)',
+        release.name + '.lib')
+
+      argv.push('-I', addonGypi)
+      argv.push('-I', commonGypi)
+      argv.push('-Dlibrary=shared_library')
+      argv.push('-Dvisibility=default')
+      argv.push('-Dnode_root_dir=' + nodeDir)
+      if (process.platform === 'aix' || process.platform === 'os390') {
+        argv.push('-Dnode_exp_file=' + nodeExpFile)
+      }
+      argv.push('-Dnode_gyp_dir=' + nodeGypDir)
+
+      // Do this to keep Cygwin environments happy, else the unescaped '\' gets eaten up,
+      // resulting in bad paths, Ex c:parentFolderfolderanotherFolder instead of c:\parentFolder\folder\anotherFolder
+      if (win) {
+        nodeLibFile = nodeLibFile.replace(/\\/g, '\\\\')
+      }
+      argv.push('-Dnode_lib_file=' + nodeLibFile)
+      argv.push('-Dmodule_root_dir=' + process.cwd())
+      argv.push('-Dnode_engine=' +
+        (gyp.opts.node_engine || process.jsEngine || 'v8'))
+      argv.push('--depth=.')
+      argv.push('--no-parallel')
+
+      // tell gyp to write the Makefile/Solution files into output_dir
+      argv.push('--generator-output', outputDir)
+
+      // tell make to write its output into the same dir
+      argv.push('-Goutput_dir=.')
+
+      // enforce use of the "binding.gyp" file
+      argv.unshift('binding.gyp')
+
+      // execute `gyp` from the current target nodedir
+      argv.unshift(gypScript)
+
+      // make sure python uses files that came with this particular node package
+      var pypath = [path.join(__dirname, '..', 'gyp', 'pylib')]
+      if (process.env.PYTHONPATH) {
+        pypath.push(process.env.PYTHONPATH)
+      }
+      process.env.PYTHONPATH = pypath.join(win ? ';' : ':')
+
+      var cp = gyp.spawn(python, argv)
+      cp.on('exit', onCpExit)
+    })
+  }
+
+  function onCpExit (code) {
+    if (code !== 0) {
+      callback(new Error('`gyp` failed with exit code: ' + code))
+    } else {
+      // we're done
+      callback()
+    }
+  }
+}
+
+/**
+ * Returns the first file or directory from an array of candidates that is
+ * readable by the current user, or undefined if none of the candidates are
+ * readable.
+ */
+function findAccessibleSync (logprefix, dir, candidates) {
+  for (var next = 0; next < candidates.length; next++) {
+    var candidate = path.resolve(dir, candidates[next])
+    try {
+      var fd = fs.openSync(candidate, 'r')
+    } catch (e) {
+      // this candidate was not found or not readable, do nothing
+      log.silly(logprefix, 'Could not open %s: %s', candidate, e.message)
+      continue
+    }
+    fs.closeSync(fd)
+    log.silly(logprefix, 'Found readable %s', candidate)
+    return candidate
+  }
+
+  return undefined
+}
+
+module.exports = configure
+module.exports.test = {
+  findAccessibleSync: findAccessibleSync
+}
+module.exports.usage = 'Generates ' + (win ? 'MSVC project files' : 'a Makefile') + ' for the current module'
diff --git a/node_modules/node-gyp/lib/create-config-gypi.js b/node_modules/node-gyp/lib/create-config-gypi.js
new file mode 100644
index 0000000..dbcb8b4
--- /dev/null
+++ b/node_modules/node-gyp/lib/create-config-gypi.js
@@ -0,0 +1,146 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const log = require('npmlog')
+const path = require('path')
+
+function parseConfigGypi (config) {
+  // translated from tools/js2c.py of Node.js
+  // 1. string comments
+  config = config.replace(/#.*/g, '')
+  // 2. join multiline strings
+  config = config.replace(/'$\s+'/mg, '')
+  // 3. normalize string literals from ' into "
+  config = config.replace(/'/g, '"')
+  return JSON.parse(config)
+}
+
+async function getBaseConfigGypi ({ gyp, nodeDir }) {
+  // try reading $nodeDir/include/node/config.gypi first when:
+  // 1. --dist-url or --nodedir is specified
+  // 2. and --force-process-config is not specified
+  const shouldReadConfigGypi = (gyp.opts.nodedir || gyp.opts['dist-url']) && !gyp.opts['force-process-config']
+  if (shouldReadConfigGypi && nodeDir) {
+    try {
+      const baseConfigGypiPath = path.resolve(nodeDir, 'include/node/config.gypi')
+      const baseConfigGypi = await fs.promises.readFile(baseConfigGypiPath)
+      return parseConfigGypi(baseConfigGypi.toString())
+    } catch (err) {
+      log.warn('read config.gypi', err.message)
+    }
+  }
+
+  // fallback to process.config if it is invalid
+  return JSON.parse(JSON.stringify(process.config))
+}
+
+async function getCurrentConfigGypi ({ gyp, nodeDir, vsInfo }) {
+  const config = await getBaseConfigGypi({ gyp, nodeDir })
+  if (!config.target_defaults) {
+    config.target_defaults = {}
+  }
+  if (!config.variables) {
+    config.variables = {}
+  }
+
+  const defaults = config.target_defaults
+  const variables = config.variables
+
+  // don't inherit the "defaults" from the base config.gypi.
+  // doing so could cause problems in cases where the `node` executable was
+  // compiled on a different machine (with different lib/include paths) than
+  // the machine where the addon is being built to
+  defaults.cflags = []
+  defaults.defines = []
+  defaults.include_dirs = []
+  defaults.libraries = []
+
+  // set the default_configuration prop
+  if ('debug' in gyp.opts) {
+    defaults.default_configuration = gyp.opts.debug ? 'Debug' : 'Release'
+  }
+
+  if (!defaults.default_configuration) {
+    defaults.default_configuration = 'Release'
+  }
+
+  // set the target_arch variable
+  variables.target_arch = gyp.opts.arch || process.arch || 'ia32'
+  if (variables.target_arch === 'arm64') {
+    defaults.msvs_configuration_platform = 'ARM64'
+    defaults.xcode_configuration_platform = 'arm64'
+  }
+
+  // set the node development directory
+  variables.nodedir = nodeDir
+
+  // disable -T "thin" static archives by default
+  variables.standalone_static_library = gyp.opts.thin ? 0 : 1
+
+  if (process.platform === 'win32') {
+    defaults.msbuild_toolset = vsInfo.toolset
+    if (vsInfo.sdk) {
+      defaults.msvs_windows_target_platform_version = vsInfo.sdk
+    }
+    if (variables.target_arch === 'arm64') {
+      if (vsInfo.versionMajor > 15 ||
+          (vsInfo.versionMajor === 15 && vsInfo.versionMajor >= 9)) {
+        defaults.msvs_enable_marmasm = 1
+      } else {
+        log.warn('Compiling ARM64 assembly is only available in\n' +
+          'Visual Studio 2017 version 15.9 and above')
+      }
+    }
+    variables.msbuild_path = vsInfo.msBuild
+  }
+
+  // loop through the rest of the opts and add the unknown ones as variables.
+  // this allows for module-specific configure flags like:
+  //
+  //   $ node-gyp configure --shared-libxml2
+  Object.keys(gyp.opts).forEach(function (opt) {
+    if (opt === 'argv') {
+      return
+    }
+    if (opt in gyp.configDefs) {
+      return
+    }
+    variables[opt.replace(/-/g, '_')] = gyp.opts[opt]
+  })
+
+  return config
+}
+
+async function createConfigGypi ({ gyp, buildDir, nodeDir, vsInfo }) {
+  const configFilename = 'config.gypi'
+  const configPath = path.resolve(buildDir, configFilename)
+
+  log.verbose('build/' + configFilename, 'creating config file')
+
+  const config = await getCurrentConfigGypi({ gyp, nodeDir, vsInfo })
+
+  // ensures that any boolean values in config.gypi get stringified
+  function boolsToString (k, v) {
+    if (typeof v === 'boolean') {
+      return String(v)
+    }
+    return v
+  }
+
+  log.silly('build/' + configFilename, config)
+
+  // now write out the config.gypi file to the build/ dir
+  const prefix = '# Do not edit. File was generated by node-gyp\'s "configure" step'
+
+  const json = JSON.stringify(config, boolsToString, 2)
+  log.verbose('build/' + configFilename, 'writing out config file: %s', configPath)
+  await fs.promises.writeFile(configPath, [prefix, json, ''].join('\n'))
+
+  return configPath
+}
+
+module.exports = createConfigGypi
+module.exports.test = {
+  parseConfigGypi: parseConfigGypi,
+  getCurrentConfigGypi: getCurrentConfigGypi
+}
diff --git a/node_modules/node-gyp/lib/find-node-directory.js b/node_modules/node-gyp/lib/find-node-directory.js
new file mode 100644
index 0000000..0dd781a
--- /dev/null
+++ b/node_modules/node-gyp/lib/find-node-directory.js
@@ -0,0 +1,63 @@
+'use strict'
+
+const path = require('path')
+const log = require('npmlog')
+
+function findNodeDirectory (scriptLocation, processObj) {
+  // set dirname and process if not passed in
+  // this facilitates regression tests
+  if (scriptLocation === undefined) {
+    scriptLocation = __dirname
+  }
+  if (processObj === undefined) {
+    processObj = process
+  }
+
+  // Have a look to see what is above us, to try and work out where we are
+  var npmParentDirectory = path.join(scriptLocation, '../../../..')
+  log.verbose('node-gyp root', 'npm_parent_directory is ' +
+              path.basename(npmParentDirectory))
+  var nodeRootDir = ''
+
+  log.verbose('node-gyp root', 'Finding node root directory')
+  if (path.basename(npmParentDirectory) === 'deps') {
+    // We are in a build directory where this script lives in
+    // deps/npm/node_modules/node-gyp/lib
+    nodeRootDir = path.join(npmParentDirectory, '..')
+    log.verbose('node-gyp root', 'in build directory, root = ' +
+                nodeRootDir)
+  } else if (path.basename(npmParentDirectory) === 'node_modules') {
+    // We are in a node install directory where this script lives in
+    // lib/node_modules/npm/node_modules/node-gyp/lib or
+    // node_modules/npm/node_modules/node-gyp/lib depending on the
+    // platform
+    if (processObj.platform === 'win32') {
+      nodeRootDir = path.join(npmParentDirectory, '..')
+    } else {
+      nodeRootDir = path.join(npmParentDirectory, '../..')
+    }
+    log.verbose('node-gyp root', 'in install directory, root = ' +
+                nodeRootDir)
+  } else {
+    // We don't know where we are, try working it out from the location
+    // of the node binary
+    var nodeDir = path.dirname(processObj.execPath)
+    var directoryUp = path.basename(nodeDir)
+    if (directoryUp === 'bin') {
+      nodeRootDir = path.join(nodeDir, '..')
+    } else if (directoryUp === 'Release' || directoryUp === 'Debug') {
+      // If we are a recently built node, and the directory structure
+      // is that of a repository. If we are on Windows then we only need
+      // to go one level up, everything else, two
+      if (processObj.platform === 'win32') {
+        nodeRootDir = path.join(nodeDir, '..')
+      } else {
+        nodeRootDir = path.join(nodeDir, '../..')
+      }
+    }
+    // Else return the default blank, "".
+  }
+  return nodeRootDir
+}
+
+module.exports = findNodeDirectory
diff --git a/node_modules/node-gyp/lib/find-python.js b/node_modules/node-gyp/lib/find-python.js
new file mode 100644
index 0000000..a445e82
--- /dev/null
+++ b/node_modules/node-gyp/lib/find-python.js
@@ -0,0 +1,344 @@
+'use strict'
+
+const log = require('npmlog')
+const semver = require('semver')
+const cp = require('child_process')
+const extend = require('util')._extend // eslint-disable-line
+const win = process.platform === 'win32'
+const logWithPrefix = require('./util').logWithPrefix
+
+const systemDrive = process.env.SystemDrive || 'C:'
+const username = process.env.USERNAME || process.env.USER || getOsUserInfo()
+const localAppData = process.env.LOCALAPPDATA || `${systemDrive}\\${username}\\AppData\\Local`
+const foundLocalAppData = process.env.LOCALAPPDATA || username
+const programFiles = process.env.ProgramW6432 || process.env.ProgramFiles || `${systemDrive}\\Program Files`
+const programFilesX86 = process.env['ProgramFiles(x86)'] || `${programFiles} (x86)`
+
+const winDefaultLocationsArray = []
+for (const majorMinor of ['39', '38', '37', '36']) {
+  if (foundLocalAppData) {
+    winDefaultLocationsArray.push(
+      `${localAppData}\\Programs\\Python\\Python${majorMinor}\\python.exe`,
+      `${programFiles}\\Python${majorMinor}\\python.exe`,
+      `${localAppData}\\Programs\\Python\\Python${majorMinor}-32\\python.exe`,
+      `${programFiles}\\Python${majorMinor}-32\\python.exe`,
+      `${programFilesX86}\\Python${majorMinor}-32\\python.exe`
+    )
+  } else {
+    winDefaultLocationsArray.push(
+      `${programFiles}\\Python${majorMinor}\\python.exe`,
+      `${programFiles}\\Python${majorMinor}-32\\python.exe`,
+      `${programFilesX86}\\Python${majorMinor}-32\\python.exe`
+    )
+  }
+}
+
+function getOsUserInfo () {
+  try {
+    return require('os').userInfo().username
+  } catch (e) {}
+}
+
+function PythonFinder (configPython, callback) {
+  this.callback = callback
+  this.configPython = configPython
+  this.errorLog = []
+}
+
+PythonFinder.prototype = {
+  log: logWithPrefix(log, 'find Python'),
+  argsExecutable: ['-c', 'import sys; print(sys.executable);'],
+  argsVersion: ['-c', 'import sys; print("%s.%s.%s" % sys.version_info[:3]);'],
+  semverRange: '>=3.6.0',
+
+  // These can be overridden for testing:
+  execFile: cp.execFile,
+  env: process.env,
+  win: win,
+  pyLauncher: 'py.exe',
+  winDefaultLocations: winDefaultLocationsArray,
+
+  // Logs a message at verbose level, but also saves it to be displayed later
+  // at error level if an error occurs. This should help diagnose the problem.
+  addLog: function addLog (message) {
+    this.log.verbose(message)
+    this.errorLog.push(message)
+  },
+
+  // Find Python by trying a sequence of possibilities.
+  // Ignore errors, keep trying until Python is found.
+  findPython: function findPython () {
+    const SKIP = 0; const FAIL = 1
+    var toCheck = getChecks.apply(this)
+
+    function getChecks () {
+      if (this.env.NODE_GYP_FORCE_PYTHON) {
+        return [{
+          before: () => {
+            this.addLog(
+              'checking Python explicitly set from NODE_GYP_FORCE_PYTHON')
+            this.addLog('- process.env.NODE_GYP_FORCE_PYTHON is ' +
+              `"${this.env.NODE_GYP_FORCE_PYTHON}"`)
+          },
+          check: this.checkCommand,
+          arg: this.env.NODE_GYP_FORCE_PYTHON
+        }]
+      }
+
+      var checks = [
+        {
+          before: () => {
+            if (!this.configPython) {
+              this.addLog(
+                'Python is not set from command line or npm configuration')
+              return SKIP
+            }
+            this.addLog('checking Python explicitly set from command line or ' +
+              'npm configuration')
+            this.addLog('- "--python=" or "npm config get python" is ' +
+              `"${this.configPython}"`)
+          },
+          check: this.checkCommand,
+          arg: this.configPython
+        },
+        {
+          before: () => {
+            if (!this.env.PYTHON) {
+              this.addLog('Python is not set from environment variable ' +
+                'PYTHON')
+              return SKIP
+            }
+            this.addLog('checking Python explicitly set from environment ' +
+              'variable PYTHON')
+            this.addLog(`- process.env.PYTHON is "${this.env.PYTHON}"`)
+          },
+          check: this.checkCommand,
+          arg: this.env.PYTHON
+        },
+        {
+          before: () => { this.addLog('checking if "python3" can be used') },
+          check: this.checkCommand,
+          arg: 'python3'
+        },
+        {
+          before: () => { this.addLog('checking if "python" can be used') },
+          check: this.checkCommand,
+          arg: 'python'
+        }
+      ]
+
+      if (this.win) {
+        for (var i = 0; i < this.winDefaultLocations.length; ++i) {
+          const location = this.winDefaultLocations[i]
+          checks.push({
+            before: () => {
+              this.addLog('checking if Python is ' +
+                `${location}`)
+            },
+            check: this.checkExecPath,
+            arg: location
+          })
+        }
+        checks.push({
+          before: () => {
+            this.addLog(
+              'checking if the py launcher can be used to find Python 3')
+          },
+          check: this.checkPyLauncher
+        })
+      }
+
+      return checks
+    }
+
+    function runChecks (err) {
+      this.log.silly('runChecks: err = %j', (err && err.stack) || err)
+
+      const check = toCheck.shift()
+      if (!check) {
+        return this.fail()
+      }
+
+      const before = check.before.apply(this)
+      if (before === SKIP) {
+        return runChecks.apply(this)
+      }
+      if (before === FAIL) {
+        return this.fail()
+      }
+
+      const args = [runChecks.bind(this)]
+      if (check.arg) {
+        args.unshift(check.arg)
+      }
+      check.check.apply(this, args)
+    }
+
+    runChecks.apply(this)
+  },
+
+  // Check if command is a valid Python to use.
+  // Will exit the Python finder on success.
+  // If on Windows, run in a CMD shell to support BAT/CMD launchers.
+  checkCommand: function checkCommand (command, errorCallback) {
+    var exec = command
+    var args = this.argsExecutable
+    var shell = false
+    if (this.win) {
+      // Arguments have to be manually quoted
+      exec = `"${exec}"`
+      args = args.map(a => `"${a}"`)
+      shell = true
+    }
+
+    this.log.verbose(`- executing "${command}" to get executable path`)
+    this.run(exec, args, shell, function (err, execPath) {
+      // Possible outcomes:
+      // - Error: not in PATH, not executable or execution fails
+      // - Gibberish: the next command to check version will fail
+      // - Absolute path to executable
+      if (err) {
+        this.addLog(`- "${command}" is not in PATH or produced an error`)
+        return errorCallback(err)
+      }
+      this.addLog(`- executable path is "${execPath}"`)
+      this.checkExecPath(execPath, errorCallback)
+    }.bind(this))
+  },
+
+  // Check if the py launcher can find a valid Python to use.
+  // Will exit the Python finder on success.
+  // Distributions of Python on Windows by default install with the "py.exe"
+  // Python launcher which is more likely to exist than the Python executable
+  // being in the $PATH.
+  // Because the Python launcher supports Python 2 and Python 3, we should
+  // explicitly request a Python 3 version. This is done by supplying "-3" as
+  // the first command line argument. Since "py.exe -3" would be an invalid
+  // executable for "execFile", we have to use the launcher to figure out
+  // where the actual "python.exe" executable is located.
+  checkPyLauncher: function checkPyLauncher (errorCallback) {
+    this.log.verbose(
+      `- executing "${this.pyLauncher}" to get Python 3 executable path`)
+    this.run(this.pyLauncher, ['-3', ...this.argsExecutable], false,
+      function (err, execPath) {
+      // Possible outcomes: same as checkCommand
+        if (err) {
+          this.addLog(
+            `- "${this.pyLauncher}" is not in PATH or produced an error`)
+          return errorCallback(err)
+        }
+        this.addLog(`- executable path is "${execPath}"`)
+        this.checkExecPath(execPath, errorCallback)
+      }.bind(this))
+  },
+
+  // Check if a Python executable is the correct version to use.
+  // Will exit the Python finder on success.
+  checkExecPath: function checkExecPath (execPath, errorCallback) {
+    this.log.verbose(`- executing "${execPath}" to get version`)
+    this.run(execPath, this.argsVersion, false, function (err, version) {
+      // Possible outcomes:
+      // - Error: executable can not be run (likely meaning the command wasn't
+      //   a Python executable and the previous command produced gibberish)
+      // - Gibberish: somehow the last command produced an executable path,
+      //   this will fail when verifying the version
+      // - Version of the Python executable
+      if (err) {
+        this.addLog(`- "${execPath}" could not be run`)
+        return errorCallback(err)
+      }
+      this.addLog(`- version is "${version}"`)
+
+      const range = new semver.Range(this.semverRange)
+      var valid = false
+      try {
+        valid = range.test(version)
+      } catch (err) {
+        this.log.silly('range.test() threw:\n%s', err.stack)
+        this.addLog(`- "${execPath}" does not have a valid version`)
+        this.addLog('- is it a Python executable?')
+        return errorCallback(err)
+      }
+
+      if (!valid) {
+        this.addLog(`- version is ${version} - should be ${this.semverRange}`)
+        this.addLog('- THIS VERSION OF PYTHON IS NOT SUPPORTED')
+        return errorCallback(new Error(
+          `Found unsupported Python version ${version}`))
+      }
+      this.succeed(execPath, version)
+    }.bind(this))
+  },
+
+  // Run an executable or shell command, trimming the output.
+  run: function run (exec, args, shell, callback) {
+    var env = extend({}, this.env)
+    env.TERM = 'dumb'
+    const opts = { env: env, shell: shell }
+
+    this.log.silly('execFile: exec = %j', exec)
+    this.log.silly('execFile: args = %j', args)
+    this.log.silly('execFile: opts = %j', opts)
+    try {
+      this.execFile(exec, args, opts, execFileCallback.bind(this))
+    } catch (err) {
+      this.log.silly('execFile: threw:\n%s', err.stack)
+      return callback(err)
+    }
+
+    function execFileCallback (err, stdout, stderr) {
+      this.log.silly('execFile result: err = %j', (err && err.stack) || err)
+      this.log.silly('execFile result: stdout = %j', stdout)
+      this.log.silly('execFile result: stderr = %j', stderr)
+      if (err) {
+        return callback(err)
+      }
+      const execPath = stdout.trim()
+      callback(null, execPath)
+    }
+  },
+
+  succeed: function succeed (execPath, version) {
+    this.log.info(`using Python version ${version} found at "${execPath}"`)
+    process.nextTick(this.callback.bind(null, null, execPath))
+  },
+
+  fail: function fail () {
+    const errorLog = this.errorLog.join('\n')
+
+    const pathExample = this.win ? 'C:\\Path\\To\\python.exe'
+      : '/path/to/pythonexecutable'
+    // For Windows 80 col console, use up to the column before the one marked
+    // with X (total 79 chars including logger prefix, 58 chars usable here):
+    //                                                           X
+    const info = [
+      '**********************************************************',
+      'You need to install the latest version of Python.',
+      'Node-gyp should be able to find and use Python. If not,',
+      'you can try one of the following options:',
+      `- Use the switch --python="${pathExample}"`,
+      '  (accepted by both node-gyp and npm)',
+      '- Set the environment variable PYTHON',
+      '- Set the npm configuration variable python:',
+      `  npm config set python "${pathExample}"`,
+      'For more information consult the documentation at:',
+      'https://github.com/nodejs/node-gyp#installation',
+      '**********************************************************'
+    ].join('\n')
+
+    this.log.error(`\n${errorLog}\n\n${info}\n`)
+    process.nextTick(this.callback.bind(null, new Error(
+      'Could not find any Python installation to use')))
+  }
+}
+
+function findPython (configPython, callback) {
+  var finder = new PythonFinder(configPython, callback)
+  finder.findPython()
+}
+
+module.exports = findPython
+module.exports.test = {
+  PythonFinder: PythonFinder,
+  findPython: findPython
+}
diff --git a/node_modules/node-gyp/lib/find-visualstudio.js b/node_modules/node-gyp/lib/find-visualstudio.js
new file mode 100644
index 0000000..64af7be
--- /dev/null
+++ b/node_modules/node-gyp/lib/find-visualstudio.js
@@ -0,0 +1,446 @@
+'use strict'
+
+const log = require('npmlog')
+const execFile = require('child_process').execFile
+const fs = require('fs')
+const path = require('path').win32
+const logWithPrefix = require('./util').logWithPrefix
+const regSearchKeys = require('./util').regSearchKeys
+
+function findVisualStudio (nodeSemver, configMsvsVersion, callback) {
+  const finder = new VisualStudioFinder(nodeSemver, configMsvsVersion,
+    callback)
+  finder.findVisualStudio()
+}
+
+function VisualStudioFinder (nodeSemver, configMsvsVersion, callback) {
+  this.nodeSemver = nodeSemver
+  this.configMsvsVersion = configMsvsVersion
+  this.callback = callback
+  this.errorLog = []
+  this.validVersions = []
+}
+
+VisualStudioFinder.prototype = {
+  log: logWithPrefix(log, 'find VS'),
+
+  regSearchKeys: regSearchKeys,
+
+  // Logs a message at verbose level, but also saves it to be displayed later
+  // at error level if an error occurs. This should help diagnose the problem.
+  addLog: function addLog (message) {
+    this.log.verbose(message)
+    this.errorLog.push(message)
+  },
+
+  findVisualStudio: function findVisualStudio () {
+    this.configVersionYear = null
+    this.configPath = null
+    if (this.configMsvsVersion) {
+      this.addLog('msvs_version was set from command line or npm config')
+      if (this.configMsvsVersion.match(/^\d{4}$/)) {
+        this.configVersionYear = parseInt(this.configMsvsVersion, 10)
+        this.addLog(
+          `- looking for Visual Studio version ${this.configVersionYear}`)
+      } else {
+        this.configPath = path.resolve(this.configMsvsVersion)
+        this.addLog(
+          `- looking for Visual Studio installed in "${this.configPath}"`)
+      }
+    } else {
+      this.addLog('msvs_version not set from command line or npm config')
+    }
+
+    if (process.env.VCINSTALLDIR) {
+      this.envVcInstallDir =
+        path.resolve(process.env.VCINSTALLDIR, '..')
+      this.addLog('running in VS Command Prompt, installation path is:\n' +
+        `"${this.envVcInstallDir}"\n- will only use this version`)
+    } else {
+      this.addLog('VCINSTALLDIR not set, not running in VS Command Prompt')
+    }
+
+    this.findVisualStudio2017OrNewer((info) => {
+      if (info) {
+        return this.succeed(info)
+      }
+      this.findVisualStudio2015((info) => {
+        if (info) {
+          return this.succeed(info)
+        }
+        this.findVisualStudio2013((info) => {
+          if (info) {
+            return this.succeed(info)
+          }
+          this.fail()
+        })
+      })
+    })
+  },
+
+  succeed: function succeed (info) {
+    this.log.info(`using VS${info.versionYear} (${info.version}) found at:` +
+                  `\n"${info.path}"` +
+                  '\nrun with --verbose for detailed information')
+    process.nextTick(this.callback.bind(null, null, info))
+  },
+
+  fail: function fail () {
+    if (this.configMsvsVersion && this.envVcInstallDir) {
+      this.errorLog.push(
+        'msvs_version does not match this VS Command Prompt or the',
+        'installation cannot be used.')
+    } else if (this.configMsvsVersion) {
+      // If msvs_version was specified but finding VS failed, print what would
+      // have been accepted
+      this.errorLog.push('')
+      if (this.validVersions) {
+        this.errorLog.push('valid versions for msvs_version:')
+        this.validVersions.forEach((version) => {
+          this.errorLog.push(`- "${version}"`)
+        })
+      } else {
+        this.errorLog.push('no valid versions for msvs_version were found')
+      }
+    }
+
+    const errorLog = this.errorLog.join('\n')
+
+    // For Windows 80 col console, use up to the column before the one marked
+    // with X (total 79 chars including logger prefix, 62 chars usable here):
+    //                                                               X
+    const infoLog = [
+      '**************************************************************',
+      'You need to install the latest version of Visual Studio',
+      'including the "Desktop development with C++" workload.',
+      'For more information consult the documentation at:',
+      'https://github.com/nodejs/node-gyp#on-windows',
+      '**************************************************************'
+    ].join('\n')
+
+    this.log.error(`\n${errorLog}\n\n${infoLog}\n`)
+    process.nextTick(this.callback.bind(null, new Error(
+      'Could not find any Visual Studio installation to use')))
+  },
+
+  // Invoke the PowerShell script to get information about Visual Studio 2017
+  // or newer installations
+  findVisualStudio2017OrNewer: function findVisualStudio2017OrNewer (cb) {
+    var ps = path.join(process.env.SystemRoot, 'System32',
+      'WindowsPowerShell', 'v1.0', 'powershell.exe')
+    var csFile = path.join(__dirname, 'Find-VisualStudio.cs')
+    var psArgs = [
+      '-ExecutionPolicy',
+      'Unrestricted',
+      '-NoProfile',
+      '-Command',
+      '&{Add-Type -Path \'' + csFile + '\';' + '[VisualStudioConfiguration.Main]::PrintJson()}'
+    ]
+
+    this.log.silly('Running', ps, psArgs)
+    var child = execFile(ps, psArgs, { encoding: 'utf8' },
+      (err, stdout, stderr) => {
+        this.parseData(err, stdout, stderr, cb)
+      })
+    child.stdin.end()
+  },
+
+  // Parse the output of the PowerShell script and look for an installation
+  // of Visual Studio 2017 or newer to use
+  parseData: function parseData (err, stdout, stderr, cb) {
+    this.log.silly('PS stderr = %j', stderr)
+
+    const failPowershell = () => {
+      this.addLog(
+        'could not use PowerShell to find Visual Studio 2017 or newer, try re-running with \'--loglevel silly\' for more details')
+      cb(null)
+    }
+
+    if (err) {
+      this.log.silly('PS err = %j', err && (err.stack || err))
+      return failPowershell()
+    }
+
+    var vsInfo
+    try {
+      vsInfo = JSON.parse(stdout)
+    } catch (e) {
+      this.log.silly('PS stdout = %j', stdout)
+      this.log.silly(e)
+      return failPowershell()
+    }
+
+    if (!Array.isArray(vsInfo)) {
+      this.log.silly('PS stdout = %j', stdout)
+      return failPowershell()
+    }
+
+    vsInfo = vsInfo.map((info) => {
+      this.log.silly(`processing installation: "${info.path}"`)
+      info.path = path.resolve(info.path)
+      var ret = this.getVersionInfo(info)
+      ret.path = info.path
+      ret.msBuild = this.getMSBuild(info, ret.versionYear)
+      ret.toolset = this.getToolset(info, ret.versionYear)
+      ret.sdk = this.getSDK(info)
+      return ret
+    })
+    this.log.silly('vsInfo:', vsInfo)
+
+    // Remove future versions or errors parsing version number
+    vsInfo = vsInfo.filter((info) => {
+      if (info.versionYear) {
+        return true
+      }
+      this.addLog(`unknown version "${info.version}" found at "${info.path}"`)
+      return false
+    })
+
+    // Sort to place newer versions first
+    vsInfo.sort((a, b) => b.versionYear - a.versionYear)
+
+    for (var i = 0; i < vsInfo.length; ++i) {
+      const info = vsInfo[i]
+      this.addLog(`checking VS${info.versionYear} (${info.version}) found ` +
+                  `at:\n"${info.path}"`)
+
+      if (info.msBuild) {
+        this.addLog('- found "Visual Studio C++ core features"')
+      } else {
+        this.addLog('- "Visual Studio C++ core features" missing')
+        continue
+      }
+
+      if (info.toolset) {
+        this.addLog(`- found VC++ toolset: ${info.toolset}`)
+      } else {
+        this.addLog('- missing any VC++ toolset')
+        continue
+      }
+
+      if (info.sdk) {
+        this.addLog(`- found Windows SDK: ${info.sdk}`)
+      } else {
+        this.addLog('- missing any Windows SDK')
+        continue
+      }
+
+      if (!this.checkConfigVersion(info.versionYear, info.path)) {
+        continue
+      }
+
+      return cb(info)
+    }
+
+    this.addLog(
+      'could not find a version of Visual Studio 2017 or newer to use')
+    cb(null)
+  },
+
+  // Helper - process version information
+  getVersionInfo: function getVersionInfo (info) {
+    const match = /^(\d+)\.(\d+)\..*/.exec(info.version)
+    if (!match) {
+      this.log.silly('- failed to parse version:', info.version)
+      return {}
+    }
+    this.log.silly('- version match = %j', match)
+    var ret = {
+      version: info.version,
+      versionMajor: parseInt(match[1], 10),
+      versionMinor: parseInt(match[2], 10)
+    }
+    if (ret.versionMajor === 15) {
+      ret.versionYear = 2017
+      return ret
+    }
+    if (ret.versionMajor === 16) {
+      ret.versionYear = 2019
+      return ret
+    }
+    if (ret.versionMajor === 17) {
+      ret.versionYear = 2022
+      return ret
+    }
+    this.log.silly('- unsupported version:', ret.versionMajor)
+    return {}
+  },
+
+  // Helper - process MSBuild information
+  getMSBuild: function getMSBuild (info, versionYear) {
+    const pkg = 'Microsoft.VisualStudio.VC.MSBuild.Base'
+    const msbuildPath = path.join(info.path, 'MSBuild', 'Current', 'Bin', 'MSBuild.exe')
+    if (info.packages.indexOf(pkg) !== -1) {
+      this.log.silly('- found VC.MSBuild.Base')
+      if (versionYear === 2017) {
+        return path.join(info.path, 'MSBuild', '15.0', 'Bin', 'MSBuild.exe')
+      }
+      if (versionYear === 2019) {
+        return msbuildPath
+      }
+    }
+    // visual studio 2022 don't has msbuild pkg
+    if (fs.existsSync(msbuildPath)) {
+      return msbuildPath
+    }
+    return null
+  },
+
+  // Helper - process toolset information
+  getToolset: function getToolset (info, versionYear) {
+    const pkg = 'Microsoft.VisualStudio.Component.VC.Tools.x86.x64'
+    const express = 'Microsoft.VisualStudio.WDExpress'
+
+    if (info.packages.indexOf(pkg) !== -1) {
+      this.log.silly('- found VC.Tools.x86.x64')
+    } else if (info.packages.indexOf(express) !== -1) {
+      this.log.silly('- found Visual Studio Express (looking for toolset)')
+    } else {
+      return null
+    }
+
+    if (versionYear === 2017) {
+      return 'v141'
+    } else if (versionYear === 2019) {
+      return 'v142'
+    } else if (versionYear === 2022) {
+      return 'v143'
+    }
+    this.log.silly('- invalid versionYear:', versionYear)
+    return null
+  },
+
+  // Helper - process Windows SDK information
+  getSDK: function getSDK (info) {
+    const win8SDK = 'Microsoft.VisualStudio.Component.Windows81SDK'
+    const win10SDKPrefix = 'Microsoft.VisualStudio.Component.Windows10SDK.'
+
+    var Win10SDKVer = 0
+    info.packages.forEach((pkg) => {
+      if (!pkg.startsWith(win10SDKPrefix)) {
+        return
+      }
+      const parts = pkg.split('.')
+      if (parts.length > 5 && parts[5] !== 'Desktop') {
+        this.log.silly('- ignoring non-Desktop Win10SDK:', pkg)
+        return
+      }
+      const foundSdkVer = parseInt(parts[4], 10)
+      if (isNaN(foundSdkVer)) {
+        // Microsoft.VisualStudio.Component.Windows10SDK.IpOverUsb
+        this.log.silly('- failed to parse Win10SDK number:', pkg)
+        return
+      }
+      this.log.silly('- found Win10SDK:', foundSdkVer)
+      Win10SDKVer = Math.max(Win10SDKVer, foundSdkVer)
+    })
+
+    if (Win10SDKVer !== 0) {
+      return `10.0.${Win10SDKVer}.0`
+    } else if (info.packages.indexOf(win8SDK) !== -1) {
+      this.log.silly('- found Win8SDK')
+      return '8.1'
+    }
+    return null
+  },
+
+  // Find an installation of Visual Studio 2015 to use
+  findVisualStudio2015: function findVisualStudio2015 (cb) {
+    return this.findOldVS({
+      version: '14.0',
+      versionMajor: 14,
+      versionMinor: 0,
+      versionYear: 2015,
+      toolset: 'v140'
+    }, cb)
+  },
+
+  // Find an installation of Visual Studio 2013 to use
+  findVisualStudio2013: function findVisualStudio2013 (cb) {
+    if (this.nodeSemver.major >= 9) {
+      this.addLog(
+        'not looking for VS2013 as it is only supported up to Node.js 8')
+      return cb(null)
+    }
+    return this.findOldVS({
+      version: '12.0',
+      versionMajor: 12,
+      versionMinor: 0,
+      versionYear: 2013,
+      toolset: 'v120'
+    }, cb)
+  },
+
+  // Helper - common code for VS2013 and VS2015
+  findOldVS: function findOldVS (info, cb) {
+    const regVC7 = ['HKLM\\Software\\Microsoft\\VisualStudio\\SxS\\VC7',
+      'HKLM\\Software\\Wow6432Node\\Microsoft\\VisualStudio\\SxS\\VC7']
+    const regMSBuild = 'HKLM\\Software\\Microsoft\\MSBuild\\ToolsVersions'
+
+    this.addLog(`looking for Visual Studio ${info.versionYear}`)
+    this.regSearchKeys(regVC7, info.version, [], (err, res) => {
+      if (err) {
+        this.addLog('- not found')
+        return cb(null)
+      }
+
+      const vsPath = path.resolve(res, '..')
+      this.addLog(`- found in "${vsPath}"`)
+
+      const msBuildRegOpts = process.arch === 'ia32' ? [] : ['/reg:32']
+      this.regSearchKeys([`${regMSBuild}\\${info.version}`],
+        'MSBuildToolsPath', msBuildRegOpts, (err, res) => {
+          if (err) {
+            this.addLog(
+              '- could not find MSBuild in registry for this version')
+            return cb(null)
+          }
+
+          const msBuild = path.join(res, 'MSBuild.exe')
+          this.addLog(`- MSBuild in "${msBuild}"`)
+
+          if (!this.checkConfigVersion(info.versionYear, vsPath)) {
+            return cb(null)
+          }
+
+          info.path = vsPath
+          info.msBuild = msBuild
+          info.sdk = null
+          cb(info)
+        })
+    })
+  },
+
+  // After finding a usable version of Visual Studio:
+  // - add it to validVersions to be displayed at the end if a specific
+  //   version was requested and not found;
+  // - check if this is the version that was requested.
+  // - check if this matches the Visual Studio Command Prompt
+  checkConfigVersion: function checkConfigVersion (versionYear, vsPath) {
+    this.validVersions.push(versionYear)
+    this.validVersions.push(vsPath)
+
+    if (this.configVersionYear && this.configVersionYear !== versionYear) {
+      this.addLog('- msvs_version does not match this version')
+      return false
+    }
+    if (this.configPath &&
+        path.relative(this.configPath, vsPath) !== '') {
+      this.addLog('- msvs_version does not point to this installation')
+      return false
+    }
+    if (this.envVcInstallDir &&
+        path.relative(this.envVcInstallDir, vsPath) !== '') {
+      this.addLog('- does not match this Visual Studio Command Prompt')
+      return false
+    }
+
+    return true
+  }
+}
+
+module.exports = findVisualStudio
+module.exports.test = {
+  VisualStudioFinder: VisualStudioFinder,
+  findVisualStudio: findVisualStudio
+}
diff --git a/node_modules/node-gyp/lib/install.js b/node_modules/node-gyp/lib/install.js
new file mode 100644
index 0000000..99f6d85
--- /dev/null
+++ b/node_modules/node-gyp/lib/install.js
@@ -0,0 +1,376 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const os = require('os')
+const tar = require('tar')
+const path = require('path')
+const util = require('util')
+const stream = require('stream')
+const crypto = require('crypto')
+const log = require('npmlog')
+const semver = require('semver')
+const fetch = require('make-fetch-happen')
+const processRelease = require('./process-release')
+const win = process.platform === 'win32'
+const streamPipeline = util.promisify(stream.pipeline)
+
+/**
+ * @param {typeof import('graceful-fs')} fs
+ */
+
+async function install (fs, gyp, argv) {
+  const release = processRelease(argv, gyp, process.version, process.release)
+
+  // Determine which node dev files version we are installing
+  log.verbose('install', 'input version string %j', release.version)
+
+  if (!release.semver) {
+    // could not parse the version string with semver
+    throw new Error('Invalid version number: ' + release.version)
+  }
+
+  if (semver.lt(release.version, '0.8.0')) {
+    throw new Error('Minimum target version is `0.8.0` or greater. Got: ' + release.version)
+  }
+
+  // 0.x.y-pre versions are not published yet and cannot be installed. Bail.
+  if (release.semver.prerelease[0] === 'pre') {
+    log.verbose('detected "pre" node version', release.version)
+    if (!gyp.opts.nodedir) {
+      throw new Error('"pre" versions of node cannot be installed, use the --nodedir flag instead')
+    }
+    log.verbose('--nodedir flag was passed; skipping install', gyp.opts.nodedir)
+    return
+  }
+
+  // flatten version into String
+  log.verbose('install', 'installing version: %s', release.versionDir)
+
+  // the directory where the dev files will be installed
+  const devDir = path.resolve(gyp.devDir, release.versionDir)
+
+  // If '--ensure' was passed, then don't *always* install the version;
+  // check if it is already installed, and only install when needed
+  if (gyp.opts.ensure) {
+    log.verbose('install', '--ensure was passed, so won\'t reinstall if already installed')
+    try {
+      await fs.promises.stat(devDir)
+    } catch (err) {
+      if (err.code === 'ENOENT') {
+        log.verbose('install', 'version not already installed, continuing with install', release.version)
+        try {
+          return await go()
+        } catch (err) {
+          return rollback(err)
+        }
+      } else if (err.code === 'EACCES') {
+        return eaccesFallback(err)
+      }
+      throw err
+    }
+    log.verbose('install', 'version is already installed, need to check "installVersion"')
+    const installVersionFile = path.resolve(devDir, 'installVersion')
+    let installVersion = 0
+    try {
+      const ver = await fs.promises.readFile(installVersionFile, 'ascii')
+      installVersion = parseInt(ver, 10) || 0
+    } catch (err) {
+      if (err.code !== 'ENOENT') {
+        throw err
+      }
+    }
+    log.verbose('got "installVersion"', installVersion)
+    log.verbose('needs "installVersion"', gyp.package.installVersion)
+    if (installVersion < gyp.package.installVersion) {
+      log.verbose('install', 'version is no good; reinstalling')
+      try {
+        return await go()
+      } catch (err) {
+        return rollback(err)
+      }
+    }
+    log.verbose('install', 'version is good')
+  } else {
+    try {
+      return await go()
+    } catch (err) {
+      return rollback(err)
+    }
+  }
+
+  async function go () {
+    log.verbose('ensuring nodedir is created', devDir)
+
+    // first create the dir for the node dev files
+    try {
+      const created = await fs.promises.mkdir(devDir, { recursive: true })
+
+      if (created) {
+        log.verbose('created nodedir', created)
+      }
+    } catch (err) {
+      if (err.code === 'EACCES') {
+        return eaccesFallback(err)
+      }
+
+      throw err
+    }
+
+    // now download the node tarball
+    const tarPath = gyp.opts.tarball
+    let extractCount = 0
+    const contentShasums = {}
+    const expectShasums = {}
+
+    // checks if a file to be extracted from the tarball is valid.
+    // only .h header files and the gyp files get extracted
+    function isValid (path) {
+      const isValid = valid(path)
+      if (isValid) {
+        log.verbose('extracted file from tarball', path)
+        extractCount++
+      } else {
+        // invalid
+        log.silly('ignoring from tarball', path)
+      }
+      return isValid
+    }
+
+    // download the tarball and extract!
+
+    if (tarPath) {
+      await tar.extract({
+        file: tarPath,
+        strip: 1,
+        filter: isValid,
+        cwd: devDir
+      })
+    } else {
+      try {
+        const res = await download(gyp, release.tarballUrl)
+
+        if (res.status !== 200) {
+          throw new Error(`${res.status} response downloading ${release.tarballUrl}`)
+        }
+
+        await streamPipeline(
+          res.body,
+          // content checksum
+          new ShaSum((_, checksum) => {
+            const filename = path.basename(release.tarballUrl).trim()
+            contentShasums[filename] = checksum
+            log.verbose('content checksum', filename, checksum)
+          }),
+          tar.extract({
+            strip: 1,
+            cwd: devDir,
+            filter: isValid
+          })
+        )
+      } catch (err) {
+        // something went wrong downloading the tarball?
+        if (err.code === 'ENOTFOUND') {
+          throw new Error('This is most likely not a problem with node-gyp or the package itself and\n' +
+            'is related to network connectivity. In most cases you are behind a proxy or have bad \n' +
+            'network settings.')
+        }
+        throw err
+      }
+    }
+
+    // invoked after the tarball has finished being extracted
+    if (extractCount === 0) {
+      throw new Error('There was a fatal problem while downloading/extracting the tarball')
+    }
+
+    log.verbose('tarball', 'done parsing tarball')
+
+    const installVersionPath = path.resolve(devDir, 'installVersion')
+    await Promise.all([
+      // need to download node.lib
+      ...(win ? downloadNodeLib() : []),
+      // write the "installVersion" file
+      fs.promises.writeFile(installVersionPath, gyp.package.installVersion + '\n'),
+      // Only download SHASUMS.txt if we downloaded something in need of SHA verification
+      ...(!tarPath || win ? [downloadShasums()] : [])
+    ])
+
+    log.verbose('download contents checksum', JSON.stringify(contentShasums))
+    // check content shasums
+    for (const k in contentShasums) {
+      log.verbose('validating download checksum for ' + k, '(%s == %s)', contentShasums[k], expectShasums[k])
+      if (contentShasums[k] !== expectShasums[k]) {
+        throw new Error(k + ' local checksum ' + contentShasums[k] + ' not match remote ' + expectShasums[k])
+      }
+    }
+
+    async function downloadShasums () {
+      log.verbose('check download content checksum, need to download `SHASUMS256.txt`...')
+      log.verbose('checksum url', release.shasumsUrl)
+
+      const res = await download(gyp, release.shasumsUrl)
+
+      if (res.status !== 200) {
+        throw new Error(`${res.status}  status code downloading checksum`)
+      }
+
+      for (const line of (await res.text()).trim().split('\n')) {
+        const items = line.trim().split(/\s+/)
+        if (items.length !== 2) {
+          return
+        }
+
+        // 0035d18e2dcf9aad669b1c7c07319e17abfe3762  ./node-v0.11.4.tar.gz
+        const name = items[1].replace(/^\.\//, '')
+        expectShasums[name] = items[0]
+      }
+
+      log.verbose('checksum data', JSON.stringify(expectShasums))
+    }
+
+    function downloadNodeLib () {
+      log.verbose('on Windows; need to download `' + release.name + '.lib`...')
+      const archs = ['ia32', 'x64', 'arm64']
+      return archs.map(async (arch) => {
+        const dir = path.resolve(devDir, arch)
+        const targetLibPath = path.resolve(dir, release.name + '.lib')
+        const { libUrl, libPath } = release[arch]
+        const name = `${arch} ${release.name}.lib`
+        log.verbose(name, 'dir', dir)
+        log.verbose(name, 'url', libUrl)
+
+        await fs.promises.mkdir(dir, { recursive: true })
+        log.verbose('streaming', name, 'to:', targetLibPath)
+
+        const res = await download(gyp, libUrl)
+
+        if (res.status === 403 || res.status === 404) {
+          if (arch === 'arm64') {
+            // Arm64 is a newer platform on Windows and not all node distributions provide it.
+            log.verbose(`${name} was not found in ${libUrl}`)
+          } else {
+            log.warn(`${name} was not found in ${libUrl}`)
+          }
+          return
+        } else if (res.status !== 200) {
+          throw new Error(`${res.status} status code downloading ${name}`)
+        }
+
+        return streamPipeline(
+          res.body,
+          new ShaSum((_, checksum) => {
+            contentShasums[libPath] = checksum
+            log.verbose('content checksum', libPath, checksum)
+          }),
+          fs.createWriteStream(targetLibPath)
+        )
+      })
+    } // downloadNodeLib()
+  } // go()
+
+  /**
+   * Checks if a given filename is "valid" for this installation.
+   */
+
+  function valid (file) {
+    // header files
+    const extname = path.extname(file)
+    return extname === '.h' || extname === '.gypi'
+  }
+
+  async function rollback (err) {
+    log.warn('install', 'got an error, rolling back install')
+    // roll-back the install if anything went wrong
+    await util.promisify(gyp.commands.remove)([release.versionDir])
+    throw err
+  }
+
+  /**
+   * The EACCES fallback is a workaround for npm's `sudo` behavior, where
+   * it drops the permissions before invoking any child processes (like
+   * node-gyp). So what happens is the "nobody" user doesn't have
+   * permission to create the dev dir. As a fallback, make the tmpdir() be
+   * the dev dir for this installation. This is not ideal, but at least
+   * the compilation will succeed...
+   */
+
+  async function eaccesFallback (err) {
+    const noretry = '--node_gyp_internal_noretry'
+    if (argv.indexOf(noretry) !== -1) {
+      throw err
+    }
+    const tmpdir = os.tmpdir()
+    gyp.devDir = path.resolve(tmpdir, '.node-gyp')
+    let userString = ''
+    try {
+      // os.userInfo can fail on some systems, it's not critical here
+      userString = ` ("${os.userInfo().username}")`
+    } catch (e) {}
+    log.warn('EACCES', 'current user%s does not have permission to access the dev dir "%s"', userString, devDir)
+    log.warn('EACCES', 'attempting to reinstall using temporary dev dir "%s"', gyp.devDir)
+    if (process.cwd() === tmpdir) {
+      log.verbose('tmpdir == cwd', 'automatically will remove dev files after to save disk space')
+      gyp.todo.push({ name: 'remove', args: argv })
+    }
+    return util.promisify(gyp.commands.install)([noretry].concat(argv))
+  }
+}
+
+class ShaSum extends stream.Transform {
+  constructor (callback) {
+    super()
+    this._callback = callback
+    this._digester = crypto.createHash('sha256')
+  }
+
+  _transform (chunk, _, callback) {
+    this._digester.update(chunk)
+    callback(null, chunk)
+  }
+
+  _flush (callback) {
+    this._callback(null, this._digester.digest('hex'))
+    callback()
+  }
+}
+
+async function download (gyp, url) {
+  log.http('GET', url)
+
+  const requestOpts = {
+    headers: {
+      'User-Agent': `node-gyp v${gyp.version} (node ${process.version})`,
+      Connection: 'keep-alive'
+    },
+    proxy: gyp.opts.proxy,
+    noProxy: gyp.opts.noproxy
+  }
+
+  const cafile = gyp.opts.cafile
+  if (cafile) {
+    requestOpts.ca = await readCAFile(cafile)
+  }
+
+  const res = await fetch(url, requestOpts)
+  log.http(res.status, res.url)
+
+  return res
+}
+
+async function readCAFile (filename) {
+  // The CA file can contain multiple certificates so split on certificate
+  // boundaries.  [\S\s]*? is used to match everything including newlines.
+  const ca = await fs.promises.readFile(filename, 'utf8')
+  const re = /(-----BEGIN CERTIFICATE-----[\S\s]*?-----END CERTIFICATE-----)/g
+  return ca.match(re)
+}
+
+module.exports = function (gyp, argv, callback) {
+  install(fs, gyp, argv).then(callback.bind(undefined, null), callback)
+}
+module.exports.test = {
+  download,
+  install,
+  readCAFile
+}
+module.exports.usage = 'Install node development files for the specified node version.'
diff --git a/node_modules/node-gyp/lib/list.js b/node_modules/node-gyp/lib/list.js
new file mode 100644
index 0000000..405ebc0
--- /dev/null
+++ b/node_modules/node-gyp/lib/list.js
@@ -0,0 +1,27 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const log = require('npmlog')
+
+function list (gyp, args, callback) {
+  var devDir = gyp.devDir
+  log.verbose('list', 'using node-gyp dir:', devDir)
+
+  fs.readdir(devDir, onreaddir)
+
+  function onreaddir (err, versions) {
+    if (err && err.code !== 'ENOENT') {
+      return callback(err)
+    }
+
+    if (Array.isArray(versions)) {
+      versions = versions.filter(function (v) { return v !== 'current' })
+    } else {
+      versions = []
+    }
+    callback(null, versions)
+  }
+}
+
+module.exports = list
+module.exports.usage = 'Prints a listing of the currently installed node development files'
diff --git a/node_modules/node-gyp/lib/node-gyp.js b/node_modules/node-gyp/lib/node-gyp.js
new file mode 100644
index 0000000..0f11185
--- /dev/null
+++ b/node_modules/node-gyp/lib/node-gyp.js
@@ -0,0 +1,211 @@
+'use strict'
+
+const path = require('path')
+const nopt = require('nopt')
+const log = require('npmlog')
+const childProcess = require('child_process')
+const EE = require('events').EventEmitter
+const inherits = require('util').inherits
+const commands = [
+  // Module build commands
+  'build',
+  'clean',
+  'configure',
+  'rebuild',
+  // Development Header File management commands
+  'install',
+  'list',
+  'remove'
+]
+const aliases = {
+  ls: 'list',
+  rm: 'remove'
+}
+
+// differentiate node-gyp's logs from npm's
+log.heading = 'gyp'
+
+function gyp () {
+  return new Gyp()
+}
+
+function Gyp () {
+  var self = this
+
+  this.devDir = ''
+  this.commands = {}
+
+  commands.forEach(function (command) {
+    self.commands[command] = function (argv, callback) {
+      log.verbose('command', command, argv)
+      return require('./' + command)(self, argv, callback)
+    }
+  })
+}
+inherits(Gyp, EE)
+exports.Gyp = Gyp
+var proto = Gyp.prototype
+
+/**
+ * Export the contents of the package.json.
+ */
+
+proto.package = require('../package.json')
+
+/**
+ * nopt configuration definitions
+ */
+
+proto.configDefs = {
+  help: Boolean, // everywhere
+  arch: String, // 'configure'
+  cafile: String, // 'install'
+  debug: Boolean, // 'build'
+  directory: String, // bin
+  make: String, // 'build'
+  msvs_version: String, // 'configure'
+  ensure: Boolean, // 'install'
+  solution: String, // 'build' (windows only)
+  proxy: String, // 'install'
+  noproxy: String, // 'install'
+  devdir: String, // everywhere
+  nodedir: String, // 'configure'
+  loglevel: String, // everywhere
+  python: String, // 'configure'
+  'dist-url': String, // 'install'
+  tarball: String, // 'install'
+  jobs: String, // 'build'
+  thin: String, // 'configure'
+  'force-process-config': Boolean // 'configure'
+}
+
+/**
+ * nopt shorthands
+ */
+
+proto.shorthands = {
+  release: '--no-debug',
+  C: '--directory',
+  debug: '--debug',
+  j: '--jobs',
+  silly: '--loglevel=silly',
+  verbose: '--loglevel=verbose',
+  silent: '--loglevel=silent'
+}
+
+/**
+ * expose the command aliases for the bin file to use.
+ */
+
+proto.aliases = aliases
+
+/**
+ * Parses the given argv array and sets the 'opts',
+ * 'argv' and 'command' properties.
+ */
+
+proto.parseArgv = function parseOpts (argv) {
+  this.opts = nopt(this.configDefs, this.shorthands, argv)
+  this.argv = this.opts.argv.remain.slice()
+
+  var commands = this.todo = []
+
+  // create a copy of the argv array with aliases mapped
+  argv = this.argv.map(function (arg) {
+    // is this an alias?
+    if (arg in this.aliases) {
+      arg = this.aliases[arg]
+    }
+    return arg
+  }, this)
+
+  // process the mapped args into "command" objects ("name" and "args" props)
+  argv.slice().forEach(function (arg) {
+    if (arg in this.commands) {
+      var args = argv.splice(0, argv.indexOf(arg))
+      argv.shift()
+      if (commands.length > 0) {
+        commands[commands.length - 1].args = args
+      }
+      commands.push({ name: arg, args: [] })
+    }
+  }, this)
+  if (commands.length > 0) {
+    commands[commands.length - 1].args = argv.splice(0)
+  }
+
+  // support for inheriting config env variables from npm
+  var npmConfigPrefix = 'npm_config_'
+  Object.keys(process.env).forEach(function (name) {
+    if (name.indexOf(npmConfigPrefix) !== 0) {
+      return
+    }
+    var val = process.env[name]
+    if (name === npmConfigPrefix + 'loglevel') {
+      log.level = val
+    } else {
+      // add the user-defined options to the config
+      name = name.substring(npmConfigPrefix.length)
+      // gyp@741b7f1 enters an infinite loop when it encounters
+      // zero-length options so ensure those don't get through.
+      if (name) {
+        this.opts[name] = val
+      }
+    }
+  }, this)
+
+  if (this.opts.loglevel) {
+    log.level = this.opts.loglevel
+  }
+  log.resume()
+}
+
+/**
+ * Spawns a child process and emits a 'spawn' event.
+ */
+
+proto.spawn = function spawn (command, args, opts) {
+  if (!opts) {
+    opts = {}
+  }
+  if (!opts.silent && !opts.stdio) {
+    opts.stdio = [0, 1, 2]
+  }
+  var cp = childProcess.spawn(command, args, opts)
+  log.info('spawn', command)
+  log.info('spawn args', args)
+  return cp
+}
+
+/**
+ * Returns the usage instructions for node-gyp.
+ */
+
+proto.usage = function usage () {
+  var str = [
+    '',
+    '  Usage: node-gyp <command> [options]',
+    '',
+    '  where <command> is one of:',
+    commands.map(function (c) {
+      return '    - ' + c + ' - ' + require('./' + c).usage
+    }).join('\n'),
+    '',
+    'node-gyp@' + this.version + '  ' + path.resolve(__dirname, '..'),
+    'node@' + process.versions.node
+  ].join('\n')
+  return str
+}
+
+/**
+ * Version number getter.
+ */
+
+Object.defineProperty(proto, 'version', {
+  get: function () {
+    return this.package.version
+  },
+  enumerable: true
+})
+
+module.exports = exports = gyp
diff --git a/node_modules/node-gyp/lib/process-release.js b/node_modules/node-gyp/lib/process-release.js
new file mode 100644
index 0000000..95b55e4
--- /dev/null
+++ b/node_modules/node-gyp/lib/process-release.js
@@ -0,0 +1,147 @@
+/* eslint-disable node/no-deprecated-api */
+
+'use strict'
+
+const semver = require('semver')
+const url = require('url')
+const path = require('path')
+const log = require('npmlog')
+
+// versions where -headers.tar.gz started shipping
+const headersTarballRange = '>= 3.0.0 || ~0.12.10 || ~0.10.42'
+const bitsre = /\/win-(x86|x64|arm64)\//
+const bitsreV3 = /\/win-(x86|ia32|x64)\// // io.js v3.x.x shipped with "ia32" but should
+// have been "x86"
+
+// Captures all the logic required to determine download URLs, local directory and
+// file names. Inputs come from command-line switches (--target, --dist-url),
+// `process.version` and `process.release` where it exists.
+function processRelease (argv, gyp, defaultVersion, defaultRelease) {
+  var version = (semver.valid(argv[0]) && argv[0]) || gyp.opts.target || defaultVersion
+  var versionSemver = semver.parse(version)
+  var overrideDistUrl = gyp.opts['dist-url'] || gyp.opts.disturl
+  var isDefaultVersion
+  var isNamedForLegacyIojs
+  var name
+  var distBaseUrl
+  var baseUrl
+  var libUrl32
+  var libUrl64
+  var libUrlArm64
+  var tarballUrl
+  var canGetHeaders
+
+  if (!versionSemver) {
+    // not a valid semver string, nothing we can do
+    return { version: version }
+  }
+  // flatten version into String
+  version = versionSemver.version
+
+  // defaultVersion should come from process.version so ought to be valid semver
+  isDefaultVersion = version === semver.parse(defaultVersion).version
+
+  // can't use process.release if we're using --target=x.y.z
+  if (!isDefaultVersion) {
+    defaultRelease = null
+  }
+
+  if (defaultRelease) {
+    // v3 onward, has process.release
+    name = defaultRelease.name.replace(/io\.js/, 'iojs') // remove the '.' for directory naming purposes
+  } else {
+    // old node or alternative --target=
+    // semver.satisfies() doesn't like prerelease tags so test major directly
+    isNamedForLegacyIojs = versionSemver.major >= 1 && versionSemver.major < 4
+    // isNamedForLegacyIojs is required to support Electron < 4 (in particular Electron 3)
+    // as previously this logic was used to ensure "iojs" was used to download iojs releases
+    // and "node" for node releases.  Unfortunately the logic was broad enough that electron@3
+    // published release assets as "iojs" so that the node-gyp logic worked.  Once Electron@3 has
+    // been EOL for a while (late 2019) we should remove this hack.
+    name = isNamedForLegacyIojs ? 'iojs' : 'node'
+  }
+
+  // check for the nvm.sh standard mirror env variables
+  if (!overrideDistUrl && process.env.NODEJS_ORG_MIRROR) {
+    overrideDistUrl = process.env.NODEJS_ORG_MIRROR
+  }
+
+  if (overrideDistUrl) {
+    log.verbose('download', 'using dist-url', overrideDistUrl)
+  }
+
+  if (overrideDistUrl) {
+    distBaseUrl = overrideDistUrl.replace(/\/+$/, '')
+  } else {
+    distBaseUrl = 'https://nodejs.org/dist'
+  }
+  distBaseUrl += '/v' + version + '/'
+
+  // new style, based on process.release so we have a lot of the data we need
+  if (defaultRelease && defaultRelease.headersUrl && !overrideDistUrl) {
+    baseUrl = url.resolve(defaultRelease.headersUrl, './')
+    libUrl32 = resolveLibUrl(name, defaultRelease.libUrl || baseUrl || distBaseUrl, 'x86', versionSemver.major)
+    libUrl64 = resolveLibUrl(name, defaultRelease.libUrl || baseUrl || distBaseUrl, 'x64', versionSemver.major)
+    libUrlArm64 = resolveLibUrl(name, defaultRelease.libUrl || baseUrl || distBaseUrl, 'arm64', versionSemver.major)
+    tarballUrl = defaultRelease.headersUrl
+  } else {
+    // older versions without process.release are captured here and we have to make
+    // a lot of assumptions, additionally if you --target=x.y.z then we can't use the
+    // current process.release
+    baseUrl = distBaseUrl
+    libUrl32 = resolveLibUrl(name, baseUrl, 'x86', versionSemver.major)
+    libUrl64 = resolveLibUrl(name, baseUrl, 'x64', versionSemver.major)
+    libUrlArm64 = resolveLibUrl(name, baseUrl, 'arm64', versionSemver.major)
+
+    // making the bold assumption that anything with a version number >3.0.0 will
+    // have a *-headers.tar.gz file in its dist location, even some frankenstein
+    // custom version
+    canGetHeaders = semver.satisfies(versionSemver, headersTarballRange)
+    tarballUrl = url.resolve(baseUrl, name + '-v' + version + (canGetHeaders ? '-headers' : '') + '.tar.gz')
+  }
+
+  return {
+    version: version,
+    semver: versionSemver,
+    name: name,
+    baseUrl: baseUrl,
+    tarballUrl: tarballUrl,
+    shasumsUrl: url.resolve(baseUrl, 'SHASUMS256.txt'),
+    versionDir: (name !== 'node' ? name + '-' : '') + version,
+    ia32: {
+      libUrl: libUrl32,
+      libPath: normalizePath(path.relative(url.parse(baseUrl).path, url.parse(libUrl32).path))
+    },
+    x64: {
+      libUrl: libUrl64,
+      libPath: normalizePath(path.relative(url.parse(baseUrl).path, url.parse(libUrl64).path))
+    },
+    arm64: {
+      libUrl: libUrlArm64,
+      libPath: normalizePath(path.relative(url.parse(baseUrl).path, url.parse(libUrlArm64).path))
+    }
+  }
+}
+
+function normalizePath (p) {
+  return path.normalize(p).replace(/\\/g, '/')
+}
+
+function resolveLibUrl (name, defaultUrl, arch, versionMajor) {
+  var base = url.resolve(defaultUrl, './')
+  var hasLibUrl = bitsre.test(defaultUrl) || (versionMajor === 3 && bitsreV3.test(defaultUrl))
+
+  if (!hasLibUrl) {
+    // let's assume it's a baseUrl then
+    if (versionMajor >= 1) {
+      return url.resolve(base, 'win-' + arch + '/' + name + '.lib')
+    }
+    // prior to io.js@1.0.0 32-bit node.lib lives in /, 64-bit lives in /x64/
+    return url.resolve(base, (arch === 'x86' ? '' : arch + '/') + name + '.lib')
+  }
+
+  // else we have a proper url to a .lib, just make sure it's the right arch
+  return defaultUrl.replace(versionMajor === 3 ? bitsreV3 : bitsre, '/win-' + arch + '/')
+}
+
+module.exports = processRelease
diff --git a/node_modules/node-gyp/lib/rebuild.js b/node_modules/node-gyp/lib/rebuild.js
new file mode 100644
index 0000000..a1c5b27
--- /dev/null
+++ b/node_modules/node-gyp/lib/rebuild.js
@@ -0,0 +1,13 @@
+'use strict'
+
+function rebuild (gyp, argv, callback) {
+  gyp.todo.push(
+    { name: 'clean', args: [] }
+    , { name: 'configure', args: argv }
+    , { name: 'build', args: [] }
+  )
+  process.nextTick(callback)
+}
+
+module.exports = rebuild
+module.exports.usage = 'Runs "clean", "configure" and "build" all at once'
diff --git a/node_modules/node-gyp/lib/remove.js b/node_modules/node-gyp/lib/remove.js
new file mode 100644
index 0000000..8c945e5
--- /dev/null
+++ b/node_modules/node-gyp/lib/remove.js
@@ -0,0 +1,46 @@
+'use strict'
+
+const fs = require('fs')
+const rm = require('rimraf')
+const path = require('path')
+const log = require('npmlog')
+const semver = require('semver')
+
+function remove (gyp, argv, callback) {
+  var devDir = gyp.devDir
+  log.verbose('remove', 'using node-gyp dir:', devDir)
+
+  // get the user-specified version to remove
+  var version = argv[0] || gyp.opts.target
+  log.verbose('remove', 'removing target version:', version)
+
+  if (!version) {
+    return callback(new Error('You must specify a version number to remove. Ex: "' + process.version + '"'))
+  }
+
+  var versionSemver = semver.parse(version)
+  if (versionSemver) {
+    // flatten the version Array into a String
+    version = versionSemver.version
+  }
+
+  var versionPath = path.resolve(gyp.devDir, version)
+  log.verbose('remove', 'removing development files for version:', version)
+
+  // first check if its even installed
+  fs.stat(versionPath, function (err) {
+    if (err) {
+      if (err.code === 'ENOENT') {
+        callback(null, 'version was already uninstalled: ' + version)
+      } else {
+        callback(err)
+      }
+      return
+    }
+    // Go ahead and delete the dir
+    rm(versionPath, callback)
+  })
+}
+
+module.exports = exports = remove
+module.exports.usage = 'Removes the node development files for the specified version'
diff --git a/node_modules/node-gyp/lib/util.js b/node_modules/node-gyp/lib/util.js
new file mode 100644
index 0000000..3e23c62
--- /dev/null
+++ b/node_modules/node-gyp/lib/util.js
@@ -0,0 +1,64 @@
+'use strict'
+
+const log = require('npmlog')
+const execFile = require('child_process').execFile
+const path = require('path')
+
+function logWithPrefix (log, prefix) {
+  function setPrefix (logFunction) {
+    return (...args) => logFunction.apply(null, [ prefix, ...args ]) // eslint-disable-line
+  }
+  return {
+    silly: setPrefix(log.silly),
+    verbose: setPrefix(log.verbose),
+    info: setPrefix(log.info),
+    warn: setPrefix(log.warn),
+    error: setPrefix(log.error)
+  }
+}
+
+function regGetValue (key, value, addOpts, cb) {
+  const outReValue = value.replace(/\W/g, '.')
+  const outRe = new RegExp(`^\\s+${outReValue}\\s+REG_\\w+\\s+(\\S.*)$`, 'im')
+  const reg = path.join(process.env.SystemRoot, 'System32', 'reg.exe')
+  const regArgs = ['query', key, '/v', value].concat(addOpts)
+
+  log.silly('reg', 'running', reg, regArgs)
+  const child = execFile(reg, regArgs, { encoding: 'utf8' },
+    function (err, stdout, stderr) {
+      log.silly('reg', 'reg.exe stdout = %j', stdout)
+      if (err || stderr.trim() !== '') {
+        log.silly('reg', 'reg.exe err = %j', err && (err.stack || err))
+        log.silly('reg', 'reg.exe stderr = %j', stderr)
+        return cb(err, stderr)
+      }
+
+      const result = outRe.exec(stdout)
+      if (!result) {
+        log.silly('reg', 'error parsing stdout')
+        return cb(new Error('Could not parse output of reg.exe'))
+      }
+      log.silly('reg', 'found: %j', result[1])
+      cb(null, result[1])
+    })
+  child.stdin.end()
+}
+
+function regSearchKeys (keys, value, addOpts, cb) {
+  var i = 0
+  const search = () => {
+    log.silly('reg-search', 'looking for %j in %j', value, keys[i])
+    regGetValue(keys[i], value, addOpts, (err, res) => {
+      ++i
+      if (err && i < keys.length) { return search() }
+      cb(err, res)
+    })
+  }
+  search()
+}
+
+module.exports = {
+  logWithPrefix: logWithPrefix,
+  regGetValue: regGetValue,
+  regSearchKeys: regSearchKeys
+}
diff --git a/node_modules/node-gyp/macOS_Catalina.md b/node_modules/node-gyp/macOS_Catalina.md
new file mode 100644
index 0000000..4fe0f29
--- /dev/null
+++ b/node_modules/node-gyp/macOS_Catalina.md
@@ -0,0 +1,104 @@
+# Installation notes for macOS Catalina (v10.15)
+
+_This document specifically refers to upgrades from previous versions of macOS to Catalina (10.15). It should be removed from the source repository when Catalina ceases to be the latest macOS version or when future Catalina versions no longer raise these issues._
+
+**Both upgrading to macOS Catalina and running a Software Update in Catalina may cause normal `node-gyp` installations to fail. This might manifest as the following error during `npm install`:**
+
+```console
+gyp: No Xcode or CLT version detected!
+```
+
+## node-gyp v7
+
+The newest release of `node-gyp` should solve this problem. If you are using `node-gyp` directly then you should be able to install v7 and use it as-is.
+
+If you need to use `node-gyp` from within `npm` (e.g. through `npm install`), you will have to install `node-gyp` (either globally with `-g` or to a predictable location) and tell `npm` where the new version is. Either use:
+
+* `npm config set node_gyp <path to node-gyp>`; or
+* run `npm` with an environment variable prefix: `npm_config_node_gyp=<path to node-gyp> npm install`
+
+Where "path to node-gyp" is to the `node-gyp` executable which may be a symlink in your global bin directory (e.g. `/usr/local/bin/node-gyp`), or a path to the `node-gyp` installation directory and the `bin/node-gyp.js` file within it (e.g. `/usr/local/lib/node_modules/node-gyp/bin/node-gyp.js`).
+
+**If you use `npm config set` to change your global `node_gyp` you are responsible for keeping it up to date and can't rely on `npm` to give you a newer version when available.** Use `npm config delete node_gyp` to unset this configuration option.
+
+## Fixing Catalina for older versions of `node-gyp`
+
+### Is my Mac running macOS Catalina?
+Let's first make sure that your Mac is running Catalina:
+```
+% sw_vers
+    ProductName:	Mac OS X
+    ProductVersion:	10.15
+    BuildVersion:	19A602
+```
+If `ProductVersion` is less then `10.15` then this document is not for you. Normal install docs for `node-gyp` on macOS can be found at https://github.com/nodejs/node-gyp#on-macos
+
+
+### The acid test
+To see if `Xcode Command Line Tools` is installed in a way that will work with `node-gyp`, run:
+```
+curl -sL https://github.com/nodejs/node-gyp/raw/master/macOS_Catalina_acid_test.sh | bash
+```
+
+If test succeeded, _you are done_! You should be ready to [install](https://github.com/nodejs/node-gyp#installation) `node-gyp`.
+
+If test failed, there is a problem with your Xcode Command Line Tools installation. [Continue to Solutions](#Solutions).
+
+### Solutions
+There are three ways to install the Xcode libraries `node-gyp` needs on macOS. People running Catalina have had success with some but not others in a way that has been unpredictable.
+
+1. With the full Xcode (~7.6 GB download) from the `App Store` app.
+2. With the _much_ smaller Xcode Command Line Tools via `xcode-select --install`
+3. With the _much_ smaller Xcode Command Line Tools via manual download. **For people running the latest version of Catalina (10.15.2 at the time of this writing), this has worked when the other two solutions haven't.**
+
+### Installing `node-gyp` using the full Xcode
+1. `xcodebuild -version` should show `Xcode 11.1` or later.
+    * If not, then install/upgrade Xcode from the App Store app.
+2. Open the Xcode app and...
+    * Under __Preferences > Locations__ select the tools if their location is empty.
+    * Allow Xcode app to do an essential install of the most recent compiler tools.
+3. Once all installations are _complete_, quit out of Xcode.
+4. `sudo xcodebuild -license accept`  # If you agree with the licensing terms.
+5. `softwareupdate -l`  # No listing is a good sign.
+    * If Xcode or Tools upgrades are listed, use "Software Upgrade" to install them.
+6. `xcode-select -version`  # Should return `xcode-select version 2370` or later.
+7. `xcode-select -print-path`  # Should return `/Applications/Xcode.app/Contents/Developer`
+8. Try the [_acid test_ steps above](#The-acid-test) to see if your Mac is ready.
+9. If the _acid test_ does _not_ pass then...
+10. `sudo xcode-select --reset`  # Enter root password.  No output is normal.
+11. Repeat step 7 above.  Is the path different this time?  Repeat the _acid test_.
+
+### Installing `node-gyp` using the Xcode Command Line Tools via `xcode-select --install`
+1. If the _acid test_ has not succeeded, then try `xcode-select --install`
+2. If the installation command returns `xcode-select: error: command line tools are already installed, use "Software Update" to install updates`, continue to [remove and reinstall](#i-did-all-that-and-the-acid-test-still-does-not-pass--)
+3. Wait until the install process is _complete_.
+4. `softwareupdate -l`  # No listing is a good sign.
+    * If Xcode or Tools upgrades are listed, use "Software Update" to install them.
+5. `xcode-select -version`  # Should return `xcode-select version 2370` or later.
+6. `xcode-select -print-path`  # Should return `/Library/Developer/CommandLineTools`
+7. Try the [_acid test_ steps above](#The-acid-test) to see if your Mac is ready.
+8. If the _acid test_ does _not_ pass then...
+9. `sudo xcode-select --reset`  # Enter root password.  No output is normal.
+10. Repeat step 5 above.  Is the path different this time?  Repeat the _acid test_.
+
+### Installing `node-gyp` using the Xcode Command Line Tools via manual download
+1. Download the appropriate version of the "Command Line Tools for Xcode" for your version of Catalina from <https://developer.apple.com/download/more/>. As of MacOS 10.15.5, that's [Command_Line_Tools_for_Xcode_11.5.dmg](https://download.developer.apple.com/Developer_Tools/Command_Line_Tools_for_Xcode_11.5/Command_Line_Tools_for_Xcode_11.5.dmg)
+2. Install the package.
+3. Run the [_acid test_ steps above](#The-acid-test).
+
+### I did all that and the acid test still does not pass :-(
+1. `sudo rm -rf $(xcode-select -print-path)`  # Enter root password.  No output is normal.
+2. `sudo rm -rf /Library/Developer/CommandLineTools`  # Enter root password.
+3. `sudo xcode-select --reset`
+4. `xcode-select --install`
+5. If the [_acid test_ steps above](#The-acid-test) still does _not_ pass then...
+6. `npm explore npm -g -- npm install node-gyp@latest`
+7. `npm explore npm -g -- npm explore npm-lifecycle -- npm install node-gyp@latest`
+8. If the _acid test_ still does _not_ pass then...
+9. Add a comment to https://github.com/nodejs/node-gyp/issues/1927 so we can improve.
+
+Lessons learned from:
+* https://github.com/nodejs/node-gyp/issues/1779
+* https://github.com/nodejs/node-gyp/issues/1861
+* https://github.com/nodejs/node-gyp/issues/1927 and elsewhere
+* Thanks to @rrrix for discovering Solution 3
diff --git a/node_modules/node-gyp/macOS_Catalina_acid_test.sh b/node_modules/node-gyp/macOS_Catalina_acid_test.sh
new file mode 100644
index 0000000..e1e9894
--- /dev/null
+++ b/node_modules/node-gyp/macOS_Catalina_acid_test.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+pkgs=(
+  "com.apple.pkg.DeveloperToolsCLILeo" # standalone
+  "com.apple.pkg.DeveloperToolsCLI"    # from XCode
+  "com.apple.pkg.CLTools_Executables"  # Mavericks
+)
+
+for pkg in "${pkgs[@]}"; do
+  output=$(/usr/sbin/pkgutil --pkg-info "$pkg" 2>/dev/null)
+  if [ "$output" ]; then
+    version=$(echo "$output" | grep 'version' | cut -d' ' -f2)
+    break
+  fi
+done
+
+if [ "$version" ]; then
+  echo "Command Line Tools version: $version"
+else
+  echo >&2 'Command Line Tools not found'
+fi
diff --git a/node_modules/node-gyp/node_modules/are-we-there-yet/LICENSE.md b/node_modules/node-gyp/node_modules/are-we-there-yet/LICENSE.md
new file mode 100644
index 0000000..845be76
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/are-we-there-yet/LICENSE.md
@@ -0,0 +1,18 @@
+ISC License
+
+Copyright npm, Inc.
+
+Permission to use, copy, modify, and/or distribute this
+software for any purpose with or without fee is hereby
+granted, provided that the above copyright notice and this
+permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND NPM DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL NPM BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
+USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/node-gyp/node_modules/are-we-there-yet/README.md b/node_modules/node-gyp/node_modules/are-we-there-yet/README.md
new file mode 100644
index 0000000..caae19b
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/are-we-there-yet/README.md
@@ -0,0 +1,208 @@
+are-we-there-yet
+----------------
+
+Track complex hierarchies of asynchronous task completion statuses.  This is
+intended to give you a way of recording and reporting the progress of the big
+recursive fan-out and gather type workflows that are so common in async.
+
+What you do with this completion data is up to you, but the most common use case is to
+feed it to one of the many progress bar modules.
+
+Most progress bar modules include a rudimentary version of this, but my
+needs were more complex.
+
+Usage
+=====
+
+```javascript
+var TrackerGroup = require("are-we-there-yet").TrackerGroup
+
+var top = new TrackerGroup("program")
+
+var single = top.newItem("one thing", 100)
+single.completeWork(20)
+
+console.log(top.completed()) // 0.2
+
+fs.stat("file", function(er, stat) {
+  if (er) throw er  
+  var stream = top.newStream("file", stat.size)
+  console.log(top.completed()) // now 0.1 as single is 50% of the job and is 20% complete
+                              // and 50% * 20% == 10%
+  fs.createReadStream("file").pipe(stream).on("data", function (chunk) {
+    // do stuff with chunk
+  })
+  top.on("change", function (name) {
+    // called each time a chunk is read from "file"
+    // top.completed() will start at 0.1 and fill up to 0.6 as the file is read
+  })
+})
+```
+
+Shared Methods
+==============
+
+* var completed = tracker.completed()
+
+Implemented in: `Tracker`, `TrackerGroup`, `TrackerStream`
+
+Returns the ratio of completed work to work to be done. Range of 0 to 1.
+
+* tracker.finish()
+
+Implemented in: `Tracker`, `TrackerGroup`
+
+Marks the tracker as completed. With a TrackerGroup this marks all of its
+components as completed.
+
+Marks all of the components of this tracker as finished, which in turn means
+that `tracker.completed()` for this will now be 1.
+
+This will result in one or more `change` events being emitted.
+
+Events
+======
+
+All tracker objects emit `change` events with the following arguments:
+
+```
+function (name, completed, tracker)
+```
+
+`name` is the name of the tracker that originally emitted the event,
+or if it didn't have one, the first containing tracker group that had one.
+
+`completed` is the percent complete (as returned by `tracker.completed()` method).
+
+`tracker` is the tracker object that you are listening for events on.
+
+TrackerGroup
+============
+
+* var tracker = new TrackerGroup(**name**)
+
+  * **name** *(optional)* - The name of this tracker group, used in change
+    notifications if the component updating didn't have a name. Defaults to undefined.
+
+Creates a new empty tracker aggregation group. These are trackers whose
+completion status is determined by the completion status of other trackers added to this aggregation group.
+
+Ex.
+
+```javascript
+var tracker = new TrackerGroup("parent")
+var foo = tracker.newItem("firstChild", 100)
+var bar = tracker.newItem("secondChild", 100)
+
+foo.finish()
+console.log(tracker.completed()) // 0.5
+bar.finish()
+console.log(tracker.completed()) // 1
+```
+
+* tracker.addUnit(**otherTracker**, **weight**)
+
+  * **otherTracker** - Any of the other are-we-there-yet tracker objects
+  * **weight** *(optional)* - The weight to give the tracker, defaults to 1.
+
+Adds the **otherTracker** to this aggregation group. The weight determines
+how long you expect this tracker to take to complete in proportion to other
+units.  So for instance, if you add one tracker with a weight of 1 and
+another with a weight of 2, you're saying the second will take twice as long
+to complete as the first.  As such, the first will account for 33% of the
+completion of this tracker and the second will account for the other 67%.
+
+Returns **otherTracker**.
+
+* var subGroup = tracker.newGroup(**name**, **weight**)
+
+The above is exactly equivalent to:
+
+```javascript
+  var subGroup = tracker.addUnit(new TrackerGroup(name), weight)
+```
+
+* var subItem = tracker.newItem(**name**, **todo**, **weight**)
+
+The above is exactly equivalent to:
+
+```javascript
+  var subItem = tracker.addUnit(new Tracker(name, todo), weight)
+```
+
+* var subStream = tracker.newStream(**name**, **todo**, **weight**)
+
+The above is exactly equivalent to:
+
+```javascript
+  var subStream = tracker.addUnit(new TrackerStream(name, todo), weight)
+```
+
+* console.log( tracker.debug() )
+
+Returns a tree showing the completion of this tracker group and all of its
+children, including recursively entering all of the children.
+
+Tracker
+=======
+
+* var tracker = new Tracker(**name**, **todo**)
+
+  * **name** *(optional)* The name of this counter to report in change
+    events.  Defaults to undefined.
+  * **todo** *(optional)* The amount of work todo (a number). Defaults to 0.
+
+Ordinarily these are constructed as a part of a tracker group (via
+`newItem`).
+
+* var completed = tracker.completed()
+
+Returns the ratio of completed work to work to be done. Range of 0 to 1. If
+total work to be done is 0 then it will return 0.
+
+* tracker.addWork(**todo**)
+
+  * **todo** A number to add to the amount of work to be done.
+
+Increases the amount of work to be done, thus decreasing the completion
+percentage.  Triggers a `change` event.
+
+* tracker.completeWork(**completed**)
+
+  * **completed** A number to add to the work complete
+
+Increase the amount of work complete, thus increasing the completion percentage.
+Will never increase the work completed past the amount of work todo. That is,
+percentages > 100% are not allowed. Triggers a `change` event.
+
+* tracker.finish()
+
+Marks this tracker as finished, tracker.completed() will now be 1. Triggers
+a `change` event.
+
+TrackerStream
+=============
+
+* var tracker = new TrackerStream(**name**, **size**, **options**)
+
+  * **name** *(optional)* The name of this counter to report in change
+    events.  Defaults to undefined.
+  * **size** *(optional)* The number of bytes being sent through this stream.
+  * **options** *(optional)* A hash of stream options
+
+The tracker stream object is a pass through stream that updates an internal
+tracker object each time a block passes through.  It's intended to track
+downloads, file extraction and other related activities. You use it by piping
+your data source into it and then using it as your data source.
+
+If your data has a length attribute then that's used as the amount of work
+completed when the chunk is passed through.  If it does not (eg, object
+streams) then each chunk counts as completing 1 unit of work, so your size
+should be the total number of objects being streamed.
+
+* tracker.addWork(**todo**)
+
+  * **todo** Increase the expected overall size by **todo** bytes.
+
+Increases the amount of work to be done, thus decreasing the completion
+percentage.  Triggers a `change` event.
diff --git a/node_modules/node-gyp/node_modules/are-we-there-yet/lib/index.js b/node_modules/node-gyp/node_modules/are-we-there-yet/lib/index.js
new file mode 100644
index 0000000..57d8743
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/are-we-there-yet/lib/index.js
@@ -0,0 +1,4 @@
+'use strict'
+exports.TrackerGroup = require('./tracker-group.js')
+exports.Tracker = require('./tracker.js')
+exports.TrackerStream = require('./tracker-stream.js')
diff --git a/node_modules/node-gyp/node_modules/are-we-there-yet/lib/tracker-base.js b/node_modules/node-gyp/node_modules/are-we-there-yet/lib/tracker-base.js
new file mode 100644
index 0000000..6f43687
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/are-we-there-yet/lib/tracker-base.js
@@ -0,0 +1,11 @@
+'use strict'
+var EventEmitter = require('events').EventEmitter
+var util = require('util')
+
+var trackerId = 0
+var TrackerBase = module.exports = function (name) {
+  EventEmitter.call(this)
+  this.id = ++trackerId
+  this.name = name
+}
+util.inherits(TrackerBase, EventEmitter)
diff --git a/node_modules/node-gyp/node_modules/are-we-there-yet/lib/tracker-group.js b/node_modules/node-gyp/node_modules/are-we-there-yet/lib/tracker-group.js
new file mode 100644
index 0000000..a3c7af8
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/are-we-there-yet/lib/tracker-group.js
@@ -0,0 +1,116 @@
+'use strict'
+var util = require('util')
+var TrackerBase = require('./tracker-base.js')
+var Tracker = require('./tracker.js')
+var TrackerStream = require('./tracker-stream.js')
+
+var TrackerGroup = module.exports = function (name) {
+  TrackerBase.call(this, name)
+  this.parentGroup = null
+  this.trackers = []
+  this.completion = {}
+  this.weight = {}
+  this.totalWeight = 0
+  this.finished = false
+  this.bubbleChange = bubbleChange(this)
+}
+util.inherits(TrackerGroup, TrackerBase)
+
+function bubbleChange (trackerGroup) {
+  return function (name, completed, tracker) {
+    trackerGroup.completion[tracker.id] = completed
+    if (trackerGroup.finished) {
+      return
+    }
+    trackerGroup.emit('change', name || trackerGroup.name, trackerGroup.completed(), trackerGroup)
+  }
+}
+
+TrackerGroup.prototype.nameInTree = function () {
+  var names = []
+  var from = this
+  while (from) {
+    names.unshift(from.name)
+    from = from.parentGroup
+  }
+  return names.join('/')
+}
+
+TrackerGroup.prototype.addUnit = function (unit, weight) {
+  if (unit.addUnit) {
+    var toTest = this
+    while (toTest) {
+      if (unit === toTest) {
+        throw new Error(
+          'Attempted to add tracker group ' +
+          unit.name + ' to tree that already includes it ' +
+          this.nameInTree(this))
+      }
+      toTest = toTest.parentGroup
+    }
+    unit.parentGroup = this
+  }
+  this.weight[unit.id] = weight || 1
+  this.totalWeight += this.weight[unit.id]
+  this.trackers.push(unit)
+  this.completion[unit.id] = unit.completed()
+  unit.on('change', this.bubbleChange)
+  if (!this.finished) {
+    this.emit('change', unit.name, this.completion[unit.id], unit)
+  }
+  return unit
+}
+
+TrackerGroup.prototype.completed = function () {
+  if (this.trackers.length === 0) {
+    return 0
+  }
+  var valPerWeight = 1 / this.totalWeight
+  var completed = 0
+  for (var ii = 0; ii < this.trackers.length; ii++) {
+    var trackerId = this.trackers[ii].id
+    completed +=
+      valPerWeight * this.weight[trackerId] * this.completion[trackerId]
+  }
+  return completed
+}
+
+TrackerGroup.prototype.newGroup = function (name, weight) {
+  return this.addUnit(new TrackerGroup(name), weight)
+}
+
+TrackerGroup.prototype.newItem = function (name, todo, weight) {
+  return this.addUnit(new Tracker(name, todo), weight)
+}
+
+TrackerGroup.prototype.newStream = function (name, todo, weight) {
+  return this.addUnit(new TrackerStream(name, todo), weight)
+}
+
+TrackerGroup.prototype.finish = function () {
+  this.finished = true
+  if (!this.trackers.length) {
+    this.addUnit(new Tracker(), 1, true)
+  }
+  for (var ii = 0; ii < this.trackers.length; ii++) {
+    var tracker = this.trackers[ii]
+    tracker.finish()
+    tracker.removeListener('change', this.bubbleChange)
+  }
+  this.emit('change', this.name, 1, this)
+}
+
+var buffer = '                                  '
+TrackerGroup.prototype.debug = function (depth) {
+  depth = depth || 0
+  var indent = depth ? buffer.slice(0, depth) : ''
+  var output = indent + (this.name || 'top') + ': ' + this.completed() + '\n'
+  this.trackers.forEach(function (tracker) {
+    if (tracker instanceof TrackerGroup) {
+      output += tracker.debug(depth + 1)
+    } else {
+      output += indent + ' ' + tracker.name + ': ' + tracker.completed() + '\n'
+    }
+  })
+  return output
+}
diff --git a/node_modules/node-gyp/node_modules/are-we-there-yet/lib/tracker-stream.js b/node_modules/node-gyp/node_modules/are-we-there-yet/lib/tracker-stream.js
new file mode 100644
index 0000000..e1cf850
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/are-we-there-yet/lib/tracker-stream.js
@@ -0,0 +1,36 @@
+'use strict'
+var util = require('util')
+var stream = require('readable-stream')
+var delegate = require('delegates')
+var Tracker = require('./tracker.js')
+
+var TrackerStream = module.exports = function (name, size, options) {
+  stream.Transform.call(this, options)
+  this.tracker = new Tracker(name, size)
+  this.name = name
+  this.id = this.tracker.id
+  this.tracker.on('change', delegateChange(this))
+}
+util.inherits(TrackerStream, stream.Transform)
+
+function delegateChange (trackerStream) {
+  return function (name, completion, tracker) {
+    trackerStream.emit('change', name, completion, trackerStream)
+  }
+}
+
+TrackerStream.prototype._transform = function (data, encoding, cb) {
+  this.tracker.completeWork(data.length ? data.length : 1)
+  this.push(data)
+  cb()
+}
+
+TrackerStream.prototype._flush = function (cb) {
+  this.tracker.finish()
+  cb()
+}
+
+delegate(TrackerStream.prototype, 'tracker')
+  .method('completed')
+  .method('addWork')
+  .method('finish')
diff --git a/node_modules/node-gyp/node_modules/are-we-there-yet/lib/tracker.js b/node_modules/node-gyp/node_modules/are-we-there-yet/lib/tracker.js
new file mode 100644
index 0000000..a8f8b3b
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/are-we-there-yet/lib/tracker.js
@@ -0,0 +1,32 @@
+'use strict'
+var util = require('util')
+var TrackerBase = require('./tracker-base.js')
+
+var Tracker = module.exports = function (name, todo) {
+  TrackerBase.call(this, name)
+  this.workDone = 0
+  this.workTodo = todo || 0
+}
+util.inherits(Tracker, TrackerBase)
+
+Tracker.prototype.completed = function () {
+  return this.workTodo === 0 ? 0 : this.workDone / this.workTodo
+}
+
+Tracker.prototype.addWork = function (work) {
+  this.workTodo += work
+  this.emit('change', this.name, this.completed(), this)
+}
+
+Tracker.prototype.completeWork = function (work) {
+  this.workDone += work
+  if (this.workDone > this.workTodo) {
+    this.workDone = this.workTodo
+  }
+  this.emit('change', this.name, this.completed(), this)
+}
+
+Tracker.prototype.finish = function () {
+  this.workTodo = this.workDone = 1
+  this.emit('change', this.name, 1, this)
+}
diff --git a/node_modules/node-gyp/node_modules/are-we-there-yet/package.json b/node_modules/node-gyp/node_modules/are-we-there-yet/package.json
new file mode 100644
index 0000000..cc3d750
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/are-we-there-yet/package.json
@@ -0,0 +1,56 @@
+{
+  "name": "are-we-there-yet",
+  "version": "3.0.1",
+  "description": "Keep track of the overall completion of many disparate processes",
+  "main": "lib/index.js",
+  "scripts": {
+    "test": "tap",
+    "npmclilint": "npmcli-lint",
+    "lint": "eslint \"**/*.js\"",
+    "lintfix": "npm run lint -- --fix",
+    "posttest": "npm run lint",
+    "postsnap": "npm run lintfix --",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags",
+    "snap": "tap",
+    "postlint": "template-oss-check",
+    "template-oss-apply": "template-oss-apply --force"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/are-we-there-yet.git"
+  },
+  "author": "GitHub Inc.",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/npm/are-we-there-yet/issues"
+  },
+  "homepage": "https://github.com/npm/are-we-there-yet",
+  "devDependencies": {
+    "@npmcli/eslint-config": "^3.0.1",
+    "@npmcli/template-oss": "3.5.0",
+    "tap": "^16.0.1"
+  },
+  "dependencies": {
+    "delegates": "^1.0.0",
+    "readable-stream": "^3.6.0"
+  },
+  "files": [
+    "bin/",
+    "lib/"
+  ],
+  "engines": {
+    "node": "^12.13.0 || ^14.15.0 || >=16.0.0"
+  },
+  "tap": {
+    "branches": 68,
+    "statements": 92,
+    "functions": 86,
+    "lines": 92
+  },
+  "templateOSS": {
+    "//@npmcli/template-oss": "This file is partially managed by @npmcli/template-oss. Edits may be overwritten.",
+    "version": "3.5.0"
+  }
+}
diff --git a/node_modules/node-gyp/node_modules/gauge/LICENSE.md b/node_modules/node-gyp/node_modules/gauge/LICENSE.md
new file mode 100644
index 0000000..5fc208f
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/LICENSE.md
@@ -0,0 +1,20 @@
+<!-- This file is automatically added by @npmcli/template-oss. Do not edit. -->
+
+ISC License
+
+Copyright npm, Inc.
+
+Permission to use, copy, modify, and/or distribute this
+software for any purpose with or without fee is hereby
+granted, provided that the above copyright notice and this
+permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND NPM DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL NPM BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
+USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/node-gyp/node_modules/gauge/README.md b/node_modules/node-gyp/node_modules/gauge/README.md
new file mode 100644
index 0000000..cbef5a5
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/README.md
@@ -0,0 +1,402 @@
+gauge
+=====
+
+A nearly stateless terminal based horizontal gauge / progress bar.
+
+```javascript
+var Gauge = require("gauge")
+
+var gauge = new Gauge()
+
+gauge.show("working…", 0)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.25) }, 500)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.50) }, 1000)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.75) }, 1500)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.99) }, 2000)
+setTimeout(() => gauge.hide(), 2300)
+```
+
+See also the [demos](docs/demo.js):
+
+![](./docs/gauge-demo.gif)
+
+
+### CHANGES FROM 1.x
+
+Gauge 2.x is breaking release, please see the [changelog] for details on
+what's changed if you were previously a user of this module.
+
+[changelog]: CHANGELOG.md
+
+### THE GAUGE CLASS
+
+This is the typical interface to the module– it provides a pretty
+fire-and-forget interface to displaying your status information.
+
+```
+var Gauge = require("gauge")
+
+var gauge = new Gauge([stream], [options])
+```
+
+* **stream** – *(optional, default STDERR)* A stream that progress bar
+  updates are to be written to.  Gauge honors backpressure and will pause
+  most writing if it is indicated.
+* **options** – *(optional)* An option object.
+
+Constructs a new gauge. Gauges are drawn on a single line, and are not drawn
+if **stream** isn't a tty and a tty isn't explicitly provided.
+
+If **stream** is a terminal or if you pass in **tty** to **options** then we
+will detect terminal resizes and redraw to fit.  We do this by watching for
+`resize` events on the tty.  (To work around a bug in versions of Node prior
+to 2.5.0, we watch for them on stdout if the tty is stderr.) Resizes to
+larger window sizes will be clean, but shrinking the window will always
+result in some cruft.
+
+**IMPORTANT:** If you previously were passing in a non-tty stream but you still
+want output (for example, a stream wrapped by the `ansi` module) then you
+need to pass in the **tty** option below, as `gauge` needs access to
+the underlying tty in order to do things like terminal resizes and terminal
+width detection.
+
+The **options** object can have the following properties, all of which are
+optional:
+
+* **updateInterval**: How often gauge updates should be drawn, in milliseconds.
+* **fixedFramerate**: Defaults to false on node 0.8, true on everything
+  else.  When this is true a timer is created to trigger once every
+  `updateInterval` ms, when false, updates are printed as soon as they come
+  in but updates more often than `updateInterval` are ignored.  The reason
+  0.8 doesn't have this set to true is that it can't `unref` its timer and
+  so it would stop your program from exiting– if you want to use this
+  feature with 0.8 just make sure you call `gauge.disable()` before you
+  expect your program to exit.
+* **themes**: A themeset to use when selecting the theme to use. Defaults
+  to `gauge/themes`, see the [themes] documentation for details.
+* **theme**: Select a theme for use, it can be a:
+  * Theme object, in which case the **themes** is not used.
+  * The name of a theme, which will be looked up in the current *themes*
+    object.
+  * A configuration object with any of `hasUnicode`, `hasColor` or
+    `platform` keys, which if will be used to override our guesses when making
+    a default theme selection.
+
+  If no theme is selected then a default is picked using a combination of our
+  best guesses at your OS, color support and unicode support.
+* **template**: Describes what you want your gauge to look like.  The
+  default is what npm uses.  Detailed [documentation] is later in this
+  document.
+* **hideCursor**: Defaults to true.  If true, then the cursor will be hidden
+  while the gauge is displayed.
+* **tty**: The tty that you're ultimately writing to.  Defaults to the same
+  as **stream**.  This is used for detecting the width of the terminal and
+  resizes. The width used is `tty.columns - 1`. If no tty is available then
+  a width of `79` is assumed.
+* **enabled**: Defaults to true if `tty` is a TTY, false otherwise.  If true
+  the gauge starts enabled.  If disabled then all update commands are
+  ignored and no gauge will be printed until you call `.enable()`.
+* **Plumbing**: The class to use to actually generate the gauge for
+  printing.  This defaults to `require('gauge/plumbing')` and ordinarily you
+  shouldn't need to override this.
+* **cleanupOnExit**: Defaults to true. Ordinarily we register an exit
+  handler to make sure your cursor is turned back on and the progress bar
+  erased when your process exits, even if you Ctrl-C out or otherwise exit
+  unexpectedly. You can disable this and it won't register the exit handler.
+
+[has-unicode]: https://www.npmjs.com/package/has-unicode
+[themes]: #themes
+[documentation]: #templates
+
+#### `gauge.show(section | status, [completed])`
+
+The first argument is either the section, the name of the current thing
+contributing to progress, or an object with keys like **section**,
+**subsection** & **completed** (or any others you have types for in a custom
+template).  If you don't want to update or set any of these you can pass
+`null` and it will be ignored.
+
+The second argument is the percent completed as a value between 0 and 1.
+Without it, completion is just not updated. You'll also note that completion
+can be passed in as part of a status object as the first argument. If both
+it and the completed argument are passed in, the completed argument wins.
+
+#### `gauge.hide([cb])`
+
+Removes the gauge from the terminal.  Optionally, callback `cb` after IO has
+had an opportunity to happen (currently this just means after `setImmediate`
+has called back.)
+
+It turns out this is important when you're pausing the progress bar on one
+filehandle and printing to another– otherwise (with a big enough print) node
+can end up printing the "end progress bar" bits to the progress bar filehandle
+while other stuff is printing to another filehandle. These getting interleaved
+can cause corruption in some terminals.
+
+#### `gauge.pulse([subsection])`
+
+* **subsection** – *(optional)* The specific thing that triggered this pulse
+
+Spins the spinner in the gauge to show output.  If **subsection** is
+included then it will be combined with the last name passed to `gauge.show`.
+
+#### `gauge.disable()`
+
+Hides the gauge and ignores further calls to `show` or `pulse`.
+
+#### `gauge.enable()`
+
+Shows the gauge and resumes updating when `show` or `pulse` is called.
+
+#### `gauge.isEnabled()`
+
+Returns true if the gauge is enabled.
+
+#### `gauge.setThemeset(themes)`
+
+Change the themeset to select a theme from. The same as the `themes` option
+used in the constructor. The theme will be reselected from this themeset.
+
+#### `gauge.setTheme(theme)`
+
+Change the active theme, will be displayed with the next show or pulse. This can be:
+
+* Theme object, in which case the **themes** is not used.
+* The name of a theme, which will be looked up in the current *themes*
+  object.
+* A configuration object with any of `hasUnicode`, `hasColor` or
+  `platform` keys, which if will be used to override our guesses when making
+  a default theme selection.
+
+If no theme is selected then a default is picked using a combination of our
+best guesses at your OS, color support and unicode support.
+
+#### `gauge.setTemplate(template)`
+
+Change the active template, will be displayed with the next show or pulse
+
+### Tracking Completion
+
+If you have more than one thing going on that you want to track completion
+of, you may find the related [are-we-there-yet] helpful.  It's `change`
+event can be wired up to the `show` method to get a more traditional
+progress bar interface.
+
+[are-we-there-yet]: https://www.npmjs.com/package/are-we-there-yet
+
+### THEMES
+
+```
+var themes = require('gauge/themes')
+
+// fetch the default color unicode theme for this platform
+var ourTheme = themes({hasUnicode: true, hasColor: true})
+
+// fetch the default non-color unicode theme for osx
+var ourTheme = themes({hasUnicode: true, hasColor: false, platform: 'darwin'})
+
+// create a new theme based on the color ascii theme for this platform
+// that brackets the progress bar with arrows
+var ourTheme = themes.newTheme(themes({hasUnicode: false, hasColor: true}), {
+  preProgressbar: '→',
+  postProgressbar: '←'
+})
+```
+
+The object returned by `gauge/themes` is an instance of the `ThemeSet` class.
+
+```
+var ThemeSet = require('gauge/theme-set')
+var themes = new ThemeSet()
+// or
+var themes = require('gauge/themes')
+var mythemes = themes.newThemeSet() // creates a new themeset based on the default themes
+```
+
+#### themes(opts)
+#### themes.getDefault(opts)
+
+Theme objects are a function that fetches the default theme based on
+platform, unicode and color support.
+
+Options is an object with the following properties:
+
+* **hasUnicode** - If true, fetch a unicode theme, if no unicode theme is
+  available then a non-unicode theme will be used.
+* **hasColor** - If true, fetch a color theme, if no color theme is
+  available a non-color theme will be used.
+* **platform** (optional) - Defaults to `process.platform`.  If no
+  platform match is available then `fallback` is used instead.
+
+If no compatible theme can be found then an error will be thrown with a
+`code` of `EMISSINGTHEME`.
+
+#### themes.addTheme(themeName, themeObj)
+#### themes.addTheme(themeName, [parentTheme], newTheme)
+
+Adds a named theme to the themeset.  You can pass in either a theme object,
+as returned by `themes.newTheme` or the arguments you'd pass to
+`themes.newTheme`.
+
+#### themes.getThemeNames()
+
+Return a list of all of the names of the themes in this themeset. Suitable
+for use in `themes.getTheme(…)`.
+
+#### themes.getTheme(name)
+
+Returns the theme object from this theme set named `name`.
+
+If `name` does not exist in this themeset an error will be thrown with
+a `code` of `EMISSINGTHEME`.
+
+#### themes.setDefault([opts], themeName)
+
+`opts` is an object with the following properties.
+
+* **platform** - Defaults to `'fallback'`.  If your theme is platform
+  specific, specify that here with the platform from `process.platform`, eg,
+  `win32`, `darwin`, etc.
+* **hasUnicode** - Defaults to `false`. If your theme uses unicode you
+  should set this to true.
+* **hasColor** - Defaults to `false`.  If your theme uses color you should
+  set this to true.
+
+`themeName` is the name of the theme (as given to `addTheme`) to use for
+this set of `opts`.
+
+#### themes.newTheme([parentTheme,] newTheme)
+
+Create a new theme object based on `parentTheme`.  If no `parentTheme` is
+provided then a minimal parentTheme that defines functions for rendering the
+activity indicator (spinner) and progress bar will be defined. (This
+fallback parent is defined in `gauge/base-theme`.)
+
+newTheme should be a bare object– we'll start by discussing the properties
+defined by the default themes:
+
+* **preProgressbar** - displayed prior to the progress bar, if the progress
+  bar is displayed.
+* **postProgressbar** - displayed after the progress bar, if the progress bar
+  is displayed.
+* **progressBarTheme** - The subtheme passed through to the progress bar
+  renderer, it's an object with `complete` and `remaining` properties
+  that are the strings you want repeated for those sections of the progress
+  bar.
+* **activityIndicatorTheme** - The theme for the activity indicator (spinner),
+  this can either be a string, in which each character is a different step, or
+  an array of strings.
+* **preSubsection** - Displayed as a separator between the `section` and
+  `subsection` when the latter is printed.
+
+More generally, themes can have any value that would be a valid value when rendering
+templates. The properties in the theme are used when their name matches a type in
+the template. Their values can be:
+
+* **strings & numbers** - They'll be included as is
+* **function (values, theme, width)** - Should return what you want in your output.
+  *values* is an object with values provided via `gauge.show`,
+  *theme* is the theme specific to this item (see below) or this theme object,
+  and *width* is the number of characters wide your result should be.
+
+There are a couple of special prefixes:
+
+* **pre** - Is shown prior to the property, if its displayed.
+* **post** - Is shown after the property, if its displayed.
+
+And one special suffix:
+
+* **Theme** - Its value is passed to a function-type item as the theme.
+
+#### themes.addToAllThemes(theme)
+
+This *mixes-in* `theme` into all themes currently defined. It also adds it
+to the default parent theme for this themeset, so future themes added to
+this themeset will get the values from `theme` by default.
+
+#### themes.newThemeSet()
+
+Copy the current themeset into a new one.  This allows you to easily inherit
+one themeset from another.
+
+### TEMPLATES
+
+A template is an array of objects and strings that, after being evaluated,
+will be turned into the gauge line.  The default template is:
+
+```javascript
+[
+    {type: 'progressbar', length: 20},
+    {type: 'activityIndicator', kerning: 1, length: 1},
+    {type: 'section', kerning: 1, default: ''},
+    {type: 'subsection', kerning: 1, default: ''}
+]
+```
+
+The various template elements can either be **plain strings**, in which case they will
+be be included verbatum in the output, or objects with the following properties:
+
+* *type* can be any of the following plus any keys you pass into `gauge.show` plus
+  any keys you have on a custom theme.
+  * `section` – What big thing you're working on now.
+  * `subsection` – What component of that thing is currently working.
+  * `activityIndicator` – Shows a spinner using the `activityIndicatorTheme`
+    from your active theme.
+  * `progressbar` – A progress bar representing your current `completed`
+    using the `progressbarTheme` from your active theme.
+* *kerning* – Number of spaces that must be between this item and other
+  items, if this item is displayed at all.
+* *maxLength* – The maximum length for this element. If its value is longer it
+  will be truncated.
+* *minLength* – The minimum length for this element. If its value is shorter it
+  will be padded according to the *align* value.
+* *align* – (Default: left) Possible values "left", "right" and "center". Works
+  as you'd expect from word processors.
+* *length* – Provides a single value for both *minLength* and *maxLength*. If both
+  *length* and *minLength or *maxLength* are specified then the latter take precedence.
+* *value* – A literal value to use for this template item.
+* *default* – A default value to use for this template item if a value
+  wasn't otherwise passed in.
+
+### PLUMBING
+
+This is the super simple, assume nothing, do no magic internals used by gauge to
+implement its ordinary interface.
+
+```
+var Plumbing = require('gauge/plumbing')
+var gauge = new Plumbing(theme, template, width)
+```
+
+* **theme**: The theme to use.
+* **template**: The template to use.
+* **width**: How wide your gauge should be
+
+#### `gauge.setTheme(theme)`
+
+Change the active theme.
+
+#### `gauge.setTemplate(template)`
+
+Change the active template.
+
+#### `gauge.setWidth(width)`
+
+Change the width to render at.
+
+#### `gauge.hide()`
+
+Return the string necessary to hide the progress bar
+
+#### `gauge.hideCursor()`
+
+Return a string to hide the cursor.
+
+#### `gauge.showCursor()`
+
+Return a string to show the cursor.
+
+#### `gauge.show(status)`
+
+Using `status` for values, render the provided template with the theme and return
+a string that is suitable for printing to update the gauge.
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/base-theme.js b/node_modules/node-gyp/node_modules/gauge/lib/base-theme.js
new file mode 100644
index 0000000..00bf568
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/base-theme.js
@@ -0,0 +1,18 @@
+'use strict'
+var spin = require('./spin.js')
+var progressBar = require('./progress-bar.js')
+
+module.exports = {
+  activityIndicator: function (values, theme, width) {
+    if (values.spun == null) {
+      return
+    }
+    return spin(theme, values.spun)
+  },
+  progressbar: function (values, theme, width) {
+    if (values.completed == null) {
+      return
+    }
+    return progressBar(theme, width, values.completed)
+  },
+}
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/error.js b/node_modules/node-gyp/node_modules/gauge/lib/error.js
new file mode 100644
index 0000000..d9914ba
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/error.js
@@ -0,0 +1,24 @@
+'use strict'
+var util = require('util')
+
+var User = exports.User = function User (msg) {
+  var err = new Error(msg)
+  Error.captureStackTrace(err, User)
+  err.code = 'EGAUGE'
+  return err
+}
+
+exports.MissingTemplateValue = function MissingTemplateValue (item, values) {
+  var err = new User(util.format('Missing template value "%s"', item.type))
+  Error.captureStackTrace(err, MissingTemplateValue)
+  err.template = item
+  err.values = values
+  return err
+}
+
+exports.Internal = function Internal (msg) {
+  var err = new Error(msg)
+  Error.captureStackTrace(err, Internal)
+  err.code = 'EGAUGEINTERNAL'
+  return err
+}
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/has-color.js b/node_modules/node-gyp/node_modules/gauge/lib/has-color.js
new file mode 100644
index 0000000..16cba0e
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/has-color.js
@@ -0,0 +1,4 @@
+'use strict'
+var colorSupport = require('color-support')
+
+module.exports = colorSupport().hasBasic
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/index.js b/node_modules/node-gyp/node_modules/gauge/lib/index.js
new file mode 100644
index 0000000..37fc5ac
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/index.js
@@ -0,0 +1,289 @@
+'use strict'
+var Plumbing = require('./plumbing.js')
+var hasUnicode = require('has-unicode')
+var hasColor = require('./has-color.js')
+var onExit = require('signal-exit')
+var defaultThemes = require('./themes')
+var setInterval = require('./set-interval.js')
+var process = require('./process.js')
+var setImmediate = require('./set-immediate')
+
+module.exports = Gauge
+
+function callWith (obj, method) {
+  return function () {
+    return method.call(obj)
+  }
+}
+
+function Gauge (arg1, arg2) {
+  var options, writeTo
+  if (arg1 && arg1.write) {
+    writeTo = arg1
+    options = arg2 || {}
+  } else if (arg2 && arg2.write) {
+    writeTo = arg2
+    options = arg1 || {}
+  } else {
+    writeTo = process.stderr
+    options = arg1 || arg2 || {}
+  }
+
+  this._status = {
+    spun: 0,
+    section: '',
+    subsection: '',
+  }
+  this._paused = false // are we paused for back pressure?
+  this._disabled = true // are all progress bar updates disabled?
+  this._showing = false // do we WANT the progress bar on screen
+  this._onScreen = false // IS the progress bar on screen
+  this._needsRedraw = false // should we print something at next tick?
+  this._hideCursor = options.hideCursor == null ? true : options.hideCursor
+  this._fixedFramerate = options.fixedFramerate == null
+    ? !(/^v0\.8\./.test(process.version))
+    : options.fixedFramerate
+  this._lastUpdateAt = null
+  this._updateInterval = options.updateInterval == null ? 50 : options.updateInterval
+
+  this._themes = options.themes || defaultThemes
+  this._theme = options.theme
+  var theme = this._computeTheme(options.theme)
+  var template = options.template || [
+    { type: 'progressbar', length: 20 },
+    { type: 'activityIndicator', kerning: 1, length: 1 },
+    { type: 'section', kerning: 1, default: '' },
+    { type: 'subsection', kerning: 1, default: '' },
+  ]
+  this.setWriteTo(writeTo, options.tty)
+  var PlumbingClass = options.Plumbing || Plumbing
+  this._gauge = new PlumbingClass(theme, template, this.getWidth())
+
+  this._$$doRedraw = callWith(this, this._doRedraw)
+  this._$$handleSizeChange = callWith(this, this._handleSizeChange)
+
+  this._cleanupOnExit = options.cleanupOnExit == null || options.cleanupOnExit
+  this._removeOnExit = null
+
+  if (options.enabled || (options.enabled == null && this._tty && this._tty.isTTY)) {
+    this.enable()
+  } else {
+    this.disable()
+  }
+}
+Gauge.prototype = {}
+
+Gauge.prototype.isEnabled = function () {
+  return !this._disabled
+}
+
+Gauge.prototype.setTemplate = function (template) {
+  this._gauge.setTemplate(template)
+  if (this._showing) {
+    this._requestRedraw()
+  }
+}
+
+Gauge.prototype._computeTheme = function (theme) {
+  if (!theme) {
+    theme = {}
+  }
+  if (typeof theme === 'string') {
+    theme = this._themes.getTheme(theme)
+  } else if (
+    Object.keys(theme).length === 0 || theme.hasUnicode != null || theme.hasColor != null
+  ) {
+    var useUnicode = theme.hasUnicode == null ? hasUnicode() : theme.hasUnicode
+    var useColor = theme.hasColor == null ? hasColor : theme.hasColor
+    theme = this._themes.getDefault({
+      hasUnicode: useUnicode,
+      hasColor: useColor,
+      platform: theme.platform,
+    })
+  }
+  return theme
+}
+
+Gauge.prototype.setThemeset = function (themes) {
+  this._themes = themes
+  this.setTheme(this._theme)
+}
+
+Gauge.prototype.setTheme = function (theme) {
+  this._gauge.setTheme(this._computeTheme(theme))
+  if (this._showing) {
+    this._requestRedraw()
+  }
+  this._theme = theme
+}
+
+Gauge.prototype._requestRedraw = function () {
+  this._needsRedraw = true
+  if (!this._fixedFramerate) {
+    this._doRedraw()
+  }
+}
+
+Gauge.prototype.getWidth = function () {
+  return ((this._tty && this._tty.columns) || 80) - 1
+}
+
+Gauge.prototype.setWriteTo = function (writeTo, tty) {
+  var enabled = !this._disabled
+  if (enabled) {
+    this.disable()
+  }
+  this._writeTo = writeTo
+  this._tty = tty ||
+    (writeTo === process.stderr && process.stdout.isTTY && process.stdout) ||
+    (writeTo.isTTY && writeTo) ||
+    this._tty
+  if (this._gauge) {
+    this._gauge.setWidth(this.getWidth())
+  }
+  if (enabled) {
+    this.enable()
+  }
+}
+
+Gauge.prototype.enable = function () {
+  if (!this._disabled) {
+    return
+  }
+  this._disabled = false
+  if (this._tty) {
+    this._enableEvents()
+  }
+  if (this._showing) {
+    this.show()
+  }
+}
+
+Gauge.prototype.disable = function () {
+  if (this._disabled) {
+    return
+  }
+  if (this._showing) {
+    this._lastUpdateAt = null
+    this._showing = false
+    this._doRedraw()
+    this._showing = true
+  }
+  this._disabled = true
+  if (this._tty) {
+    this._disableEvents()
+  }
+}
+
+Gauge.prototype._enableEvents = function () {
+  if (this._cleanupOnExit) {
+    this._removeOnExit = onExit(callWith(this, this.disable))
+  }
+  this._tty.on('resize', this._$$handleSizeChange)
+  if (this._fixedFramerate) {
+    this.redrawTracker = setInterval(this._$$doRedraw, this._updateInterval)
+    if (this.redrawTracker.unref) {
+      this.redrawTracker.unref()
+    }
+  }
+}
+
+Gauge.prototype._disableEvents = function () {
+  this._tty.removeListener('resize', this._$$handleSizeChange)
+  if (this._fixedFramerate) {
+    clearInterval(this.redrawTracker)
+  }
+  if (this._removeOnExit) {
+    this._removeOnExit()
+  }
+}
+
+Gauge.prototype.hide = function (cb) {
+  if (this._disabled) {
+    return cb && process.nextTick(cb)
+  }
+  if (!this._showing) {
+    return cb && process.nextTick(cb)
+  }
+  this._showing = false
+  this._doRedraw()
+  cb && setImmediate(cb)
+}
+
+Gauge.prototype.show = function (section, completed) {
+  this._showing = true
+  if (typeof section === 'string') {
+    this._status.section = section
+  } else if (typeof section === 'object') {
+    var sectionKeys = Object.keys(section)
+    for (var ii = 0; ii < sectionKeys.length; ++ii) {
+      var key = sectionKeys[ii]
+      this._status[key] = section[key]
+    }
+  }
+  if (completed != null) {
+    this._status.completed = completed
+  }
+  if (this._disabled) {
+    return
+  }
+  this._requestRedraw()
+}
+
+Gauge.prototype.pulse = function (subsection) {
+  this._status.subsection = subsection || ''
+  this._status.spun++
+  if (this._disabled) {
+    return
+  }
+  if (!this._showing) {
+    return
+  }
+  this._requestRedraw()
+}
+
+Gauge.prototype._handleSizeChange = function () {
+  this._gauge.setWidth(this._tty.columns - 1)
+  this._requestRedraw()
+}
+
+Gauge.prototype._doRedraw = function () {
+  if (this._disabled || this._paused) {
+    return
+  }
+  if (!this._fixedFramerate) {
+    var now = Date.now()
+    if (this._lastUpdateAt && now - this._lastUpdateAt < this._updateInterval) {
+      return
+    }
+    this._lastUpdateAt = now
+  }
+  if (!this._showing && this._onScreen) {
+    this._onScreen = false
+    var result = this._gauge.hide()
+    if (this._hideCursor) {
+      result += this._gauge.showCursor()
+    }
+    return this._writeTo.write(result)
+  }
+  if (!this._showing && !this._onScreen) {
+    return
+  }
+  if (this._showing && !this._onScreen) {
+    this._onScreen = true
+    this._needsRedraw = true
+    if (this._hideCursor) {
+      this._writeTo.write(this._gauge.hideCursor())
+    }
+  }
+  if (!this._needsRedraw) {
+    return
+  }
+  if (!this._writeTo.write(this._gauge.show(this._status))) {
+    this._paused = true
+    this._writeTo.on('drain', callWith(this, function () {
+      this._paused = false
+      this._doRedraw()
+    }))
+  }
+}
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/plumbing.js b/node_modules/node-gyp/node_modules/gauge/lib/plumbing.js
new file mode 100644
index 0000000..c4dc3e0
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/plumbing.js
@@ -0,0 +1,50 @@
+'use strict'
+var consoleControl = require('console-control-strings')
+var renderTemplate = require('./render-template.js')
+var validate = require('aproba')
+
+var Plumbing = module.exports = function (theme, template, width) {
+  if (!width) {
+    width = 80
+  }
+  validate('OAN', [theme, template, width])
+  this.showing = false
+  this.theme = theme
+  this.width = width
+  this.template = template
+}
+Plumbing.prototype = {}
+
+Plumbing.prototype.setTheme = function (theme) {
+  validate('O', [theme])
+  this.theme = theme
+}
+
+Plumbing.prototype.setTemplate = function (template) {
+  validate('A', [template])
+  this.template = template
+}
+
+Plumbing.prototype.setWidth = function (width) {
+  validate('N', [width])
+  this.width = width
+}
+
+Plumbing.prototype.hide = function () {
+  return consoleControl.gotoSOL() + consoleControl.eraseLine()
+}
+
+Plumbing.prototype.hideCursor = consoleControl.hideCursor
+
+Plumbing.prototype.showCursor = consoleControl.showCursor
+
+Plumbing.prototype.show = function (status) {
+  var values = Object.create(this.theme)
+  for (var key in status) {
+    values[key] = status[key]
+  }
+
+  return renderTemplate(this.width, this.template, values).trim() +
+         consoleControl.color('reset') +
+         consoleControl.eraseLine() + consoleControl.gotoSOL()
+}
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/process.js b/node_modules/node-gyp/node_modules/gauge/lib/process.js
new file mode 100644
index 0000000..05e8569
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/process.js
@@ -0,0 +1,3 @@
+'use strict'
+// this exists so we can replace it during testing
+module.exports = process
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/progress-bar.js b/node_modules/node-gyp/node_modules/gauge/lib/progress-bar.js
new file mode 100644
index 0000000..184ff25
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/progress-bar.js
@@ -0,0 +1,41 @@
+'use strict'
+var validate = require('aproba')
+var renderTemplate = require('./render-template.js')
+var wideTruncate = require('./wide-truncate')
+var stringWidth = require('string-width')
+
+module.exports = function (theme, width, completed) {
+  validate('ONN', [theme, width, completed])
+  if (completed < 0) {
+    completed = 0
+  }
+  if (completed > 1) {
+    completed = 1
+  }
+  if (width <= 0) {
+    return ''
+  }
+  var sofar = Math.round(width * completed)
+  var rest = width - sofar
+  var template = [
+    { type: 'complete', value: repeat(theme.complete, sofar), length: sofar },
+    { type: 'remaining', value: repeat(theme.remaining, rest), length: rest },
+  ]
+  return renderTemplate(width, template, theme)
+}
+
+// lodash's way of repeating
+function repeat (string, width) {
+  var result = ''
+  var n = width
+  do {
+    if (n % 2) {
+      result += string
+    }
+    n = Math.floor(n / 2)
+    /* eslint no-self-assign: 0 */
+    string += string
+  } while (n && stringWidth(result) < width)
+
+  return wideTruncate(result, width)
+}
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/render-template.js b/node_modules/node-gyp/node_modules/gauge/lib/render-template.js
new file mode 100644
index 0000000..d1b52c0
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/render-template.js
@@ -0,0 +1,222 @@
+'use strict'
+var align = require('wide-align')
+var validate = require('aproba')
+var wideTruncate = require('./wide-truncate')
+var error = require('./error')
+var TemplateItem = require('./template-item')
+
+function renderValueWithValues (values) {
+  return function (item) {
+    return renderValue(item, values)
+  }
+}
+
+var renderTemplate = module.exports = function (width, template, values) {
+  var items = prepareItems(width, template, values)
+  var rendered = items.map(renderValueWithValues(values)).join('')
+  return align.left(wideTruncate(rendered, width), width)
+}
+
+function preType (item) {
+  var cappedTypeName = item.type[0].toUpperCase() + item.type.slice(1)
+  return 'pre' + cappedTypeName
+}
+
+function postType (item) {
+  var cappedTypeName = item.type[0].toUpperCase() + item.type.slice(1)
+  return 'post' + cappedTypeName
+}
+
+function hasPreOrPost (item, values) {
+  if (!item.type) {
+    return
+  }
+  return values[preType(item)] || values[postType(item)]
+}
+
+function generatePreAndPost (baseItem, parentValues) {
+  var item = Object.assign({}, baseItem)
+  var values = Object.create(parentValues)
+  var template = []
+  var pre = preType(item)
+  var post = postType(item)
+  if (values[pre]) {
+    template.push({ value: values[pre] })
+    values[pre] = null
+  }
+  item.minLength = null
+  item.length = null
+  item.maxLength = null
+  template.push(item)
+  values[item.type] = values[item.type]
+  if (values[post]) {
+    template.push({ value: values[post] })
+    values[post] = null
+  }
+  return function ($1, $2, length) {
+    return renderTemplate(length, template, values)
+  }
+}
+
+function prepareItems (width, template, values) {
+  function cloneAndObjectify (item, index, arr) {
+    var cloned = new TemplateItem(item, width)
+    var type = cloned.type
+    if (cloned.value == null) {
+      if (!(type in values)) {
+        if (cloned.default == null) {
+          throw new error.MissingTemplateValue(cloned, values)
+        } else {
+          cloned.value = cloned.default
+        }
+      } else {
+        cloned.value = values[type]
+      }
+    }
+    if (cloned.value == null || cloned.value === '') {
+      return null
+    }
+    cloned.index = index
+    cloned.first = index === 0
+    cloned.last = index === arr.length - 1
+    if (hasPreOrPost(cloned, values)) {
+      cloned.value = generatePreAndPost(cloned, values)
+    }
+    return cloned
+  }
+
+  var output = template.map(cloneAndObjectify).filter(function (item) {
+    return item != null
+  })
+
+  var remainingSpace = width
+  var variableCount = output.length
+
+  function consumeSpace (length) {
+    if (length > remainingSpace) {
+      length = remainingSpace
+    }
+    remainingSpace -= length
+  }
+
+  function finishSizing (item, length) {
+    if (item.finished) {
+      throw new error.Internal('Tried to finish template item that was already finished')
+    }
+    if (length === Infinity) {
+      throw new error.Internal('Length of template item cannot be infinity')
+    }
+    if (length != null) {
+      item.length = length
+    }
+    item.minLength = null
+    item.maxLength = null
+    --variableCount
+    item.finished = true
+    if (item.length == null) {
+      item.length = item.getBaseLength()
+    }
+    if (item.length == null) {
+      throw new error.Internal('Finished template items must have a length')
+    }
+    consumeSpace(item.getLength())
+  }
+
+  output.forEach(function (item) {
+    if (!item.kerning) {
+      return
+    }
+    var prevPadRight = item.first ? 0 : output[item.index - 1].padRight
+    if (!item.first && prevPadRight < item.kerning) {
+      item.padLeft = item.kerning - prevPadRight
+    }
+    if (!item.last) {
+      item.padRight = item.kerning
+    }
+  })
+
+  // Finish any that have a fixed (literal or intuited) length
+  output.forEach(function (item) {
+    if (item.getBaseLength() == null) {
+      return
+    }
+    finishSizing(item)
+  })
+
+  var resized = 0
+  var resizing
+  var hunkSize
+  do {
+    resizing = false
+    hunkSize = Math.round(remainingSpace / variableCount)
+    output.forEach(function (item) {
+      if (item.finished) {
+        return
+      }
+      if (!item.maxLength) {
+        return
+      }
+      if (item.getMaxLength() < hunkSize) {
+        finishSizing(item, item.maxLength)
+        resizing = true
+      }
+    })
+  } while (resizing && resized++ < output.length)
+  if (resizing) {
+    throw new error.Internal('Resize loop iterated too many times while determining maxLength')
+  }
+
+  resized = 0
+  do {
+    resizing = false
+    hunkSize = Math.round(remainingSpace / variableCount)
+    output.forEach(function (item) {
+      if (item.finished) {
+        return
+      }
+      if (!item.minLength) {
+        return
+      }
+      if (item.getMinLength() >= hunkSize) {
+        finishSizing(item, item.minLength)
+        resizing = true
+      }
+    })
+  } while (resizing && resized++ < output.length)
+  if (resizing) {
+    throw new error.Internal('Resize loop iterated too many times while determining minLength')
+  }
+
+  hunkSize = Math.round(remainingSpace / variableCount)
+  output.forEach(function (item) {
+    if (item.finished) {
+      return
+    }
+    finishSizing(item, hunkSize)
+  })
+
+  return output
+}
+
+function renderFunction (item, values, length) {
+  validate('OON', arguments)
+  if (item.type) {
+    return item.value(values, values[item.type + 'Theme'] || {}, length)
+  } else {
+    return item.value(values, {}, length)
+  }
+}
+
+function renderValue (item, values) {
+  var length = item.getBaseLength()
+  var value = typeof item.value === 'function' ? renderFunction(item, values, length) : item.value
+  if (value == null || value === '') {
+    return ''
+  }
+  var alignWith = align[item.align] || align.left
+  var leftPadding = item.padLeft ? align.left('', item.padLeft) : ''
+  var rightPadding = item.padRight ? align.right('', item.padRight) : ''
+  var truncated = wideTruncate(String(value), length)
+  var aligned = alignWith(truncated, length)
+  return leftPadding + aligned + rightPadding
+}
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/set-immediate.js b/node_modules/node-gyp/node_modules/gauge/lib/set-immediate.js
new file mode 100644
index 0000000..6650a48
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/set-immediate.js
@@ -0,0 +1,7 @@
+'use strict'
+var process = require('./process')
+try {
+  module.exports = setImmediate
+} catch (ex) {
+  module.exports = process.nextTick
+}
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/set-interval.js b/node_modules/node-gyp/node_modules/gauge/lib/set-interval.js
new file mode 100644
index 0000000..5761987
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/set-interval.js
@@ -0,0 +1,3 @@
+'use strict'
+// this exists so we can replace it during testing
+module.exports = setInterval
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/spin.js b/node_modules/node-gyp/node_modules/gauge/lib/spin.js
new file mode 100644
index 0000000..34142ee
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/spin.js
@@ -0,0 +1,5 @@
+'use strict'
+
+module.exports = function spin (spinstr, spun) {
+  return spinstr[spun % spinstr.length]
+}
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/template-item.js b/node_modules/node-gyp/node_modules/gauge/lib/template-item.js
new file mode 100644
index 0000000..e307e9b
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/template-item.js
@@ -0,0 +1,87 @@
+'use strict'
+var stringWidth = require('string-width')
+
+module.exports = TemplateItem
+
+function isPercent (num) {
+  if (typeof num !== 'string') {
+    return false
+  }
+  return num.slice(-1) === '%'
+}
+
+function percent (num) {
+  return Number(num.slice(0, -1)) / 100
+}
+
+function TemplateItem (values, outputLength) {
+  this.overallOutputLength = outputLength
+  this.finished = false
+  this.type = null
+  this.value = null
+  this.length = null
+  this.maxLength = null
+  this.minLength = null
+  this.kerning = null
+  this.align = 'left'
+  this.padLeft = 0
+  this.padRight = 0
+  this.index = null
+  this.first = null
+  this.last = null
+  if (typeof values === 'string') {
+    this.value = values
+  } else {
+    for (var prop in values) {
+      this[prop] = values[prop]
+    }
+  }
+  // Realize percents
+  if (isPercent(this.length)) {
+    this.length = Math.round(this.overallOutputLength * percent(this.length))
+  }
+  if (isPercent(this.minLength)) {
+    this.minLength = Math.round(this.overallOutputLength * percent(this.minLength))
+  }
+  if (isPercent(this.maxLength)) {
+    this.maxLength = Math.round(this.overallOutputLength * percent(this.maxLength))
+  }
+  return this
+}
+
+TemplateItem.prototype = {}
+
+TemplateItem.prototype.getBaseLength = function () {
+  var length = this.length
+  if (
+    length == null &&
+    typeof this.value === 'string' &&
+    this.maxLength == null &&
+    this.minLength == null
+  ) {
+    length = stringWidth(this.value)
+  }
+  return length
+}
+
+TemplateItem.prototype.getLength = function () {
+  var length = this.getBaseLength()
+  if (length == null) {
+    return null
+  }
+  return length + this.padLeft + this.padRight
+}
+
+TemplateItem.prototype.getMaxLength = function () {
+  if (this.maxLength == null) {
+    return null
+  }
+  return this.maxLength + this.padLeft + this.padRight
+}
+
+TemplateItem.prototype.getMinLength = function () {
+  if (this.minLength == null) {
+    return null
+  }
+  return this.minLength + this.padLeft + this.padRight
+}
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/theme-set.js b/node_modules/node-gyp/node_modules/gauge/lib/theme-set.js
new file mode 100644
index 0000000..643d7db
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/theme-set.js
@@ -0,0 +1,122 @@
+'use strict'
+
+module.exports = function () {
+  return ThemeSetProto.newThemeSet()
+}
+
+var ThemeSetProto = {}
+
+ThemeSetProto.baseTheme = require('./base-theme.js')
+
+ThemeSetProto.newTheme = function (parent, theme) {
+  if (!theme) {
+    theme = parent
+    parent = this.baseTheme
+  }
+  return Object.assign({}, parent, theme)
+}
+
+ThemeSetProto.getThemeNames = function () {
+  return Object.keys(this.themes)
+}
+
+ThemeSetProto.addTheme = function (name, parent, theme) {
+  this.themes[name] = this.newTheme(parent, theme)
+}
+
+ThemeSetProto.addToAllThemes = function (theme) {
+  var themes = this.themes
+  Object.keys(themes).forEach(function (name) {
+    Object.assign(themes[name], theme)
+  })
+  Object.assign(this.baseTheme, theme)
+}
+
+ThemeSetProto.getTheme = function (name) {
+  if (!this.themes[name]) {
+    throw this.newMissingThemeError(name)
+  }
+  return this.themes[name]
+}
+
+ThemeSetProto.setDefault = function (opts, name) {
+  if (name == null) {
+    name = opts
+    opts = {}
+  }
+  var platform = opts.platform == null ? 'fallback' : opts.platform
+  var hasUnicode = !!opts.hasUnicode
+  var hasColor = !!opts.hasColor
+  if (!this.defaults[platform]) {
+    this.defaults[platform] = { true: {}, false: {} }
+  }
+  this.defaults[platform][hasUnicode][hasColor] = name
+}
+
+ThemeSetProto.getDefault = function (opts) {
+  if (!opts) {
+    opts = {}
+  }
+  var platformName = opts.platform || process.platform
+  var platform = this.defaults[platformName] || this.defaults.fallback
+  var hasUnicode = !!opts.hasUnicode
+  var hasColor = !!opts.hasColor
+  if (!platform) {
+    throw this.newMissingDefaultThemeError(platformName, hasUnicode, hasColor)
+  }
+  if (!platform[hasUnicode][hasColor]) {
+    if (hasUnicode && hasColor && platform[!hasUnicode][hasColor]) {
+      hasUnicode = false
+    } else if (hasUnicode && hasColor && platform[hasUnicode][!hasColor]) {
+      hasColor = false
+    } else if (hasUnicode && hasColor && platform[!hasUnicode][!hasColor]) {
+      hasUnicode = false
+      hasColor = false
+    } else if (hasUnicode && !hasColor && platform[!hasUnicode][hasColor]) {
+      hasUnicode = false
+    } else if (!hasUnicode && hasColor && platform[hasUnicode][!hasColor]) {
+      hasColor = false
+    } else if (platform === this.defaults.fallback) {
+      throw this.newMissingDefaultThemeError(platformName, hasUnicode, hasColor)
+    }
+  }
+  if (platform[hasUnicode][hasColor]) {
+    return this.getTheme(platform[hasUnicode][hasColor])
+  } else {
+    return this.getDefault(Object.assign({}, opts, { platform: 'fallback' }))
+  }
+}
+
+ThemeSetProto.newMissingThemeError = function newMissingThemeError (name) {
+  var err = new Error('Could not find a gauge theme named "' + name + '"')
+  Error.captureStackTrace.call(err, newMissingThemeError)
+  err.theme = name
+  err.code = 'EMISSINGTHEME'
+  return err
+}
+
+ThemeSetProto.newMissingDefaultThemeError =
+  function newMissingDefaultThemeError (platformName, hasUnicode, hasColor) {
+    var err = new Error(
+      'Could not find a gauge theme for your platform/unicode/color use combo:\n' +
+    '    platform = ' + platformName + '\n' +
+    '    hasUnicode = ' + hasUnicode + '\n' +
+    '    hasColor = ' + hasColor)
+    Error.captureStackTrace.call(err, newMissingDefaultThemeError)
+    err.platform = platformName
+    err.hasUnicode = hasUnicode
+    err.hasColor = hasColor
+    err.code = 'EMISSINGTHEME'
+    return err
+  }
+
+ThemeSetProto.newThemeSet = function () {
+  var themeset = function (opts) {
+    return themeset.getDefault(opts)
+  }
+  return Object.assign(themeset, ThemeSetProto, {
+    themes: Object.assign({}, this.themes),
+    baseTheme: Object.assign({}, this.baseTheme),
+    defaults: JSON.parse(JSON.stringify(this.defaults || {})),
+  })
+}
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/themes.js b/node_modules/node-gyp/node_modules/gauge/lib/themes.js
new file mode 100644
index 0000000..d2e62bb
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/themes.js
@@ -0,0 +1,56 @@
+'use strict'
+var color = require('console-control-strings').color
+var ThemeSet = require('./theme-set.js')
+
+var themes = module.exports = new ThemeSet()
+
+themes.addTheme('ASCII', {
+  preProgressbar: '[',
+  postProgressbar: ']',
+  progressbarTheme: {
+    complete: '#',
+    remaining: '.',
+  },
+  activityIndicatorTheme: '-\\|/',
+  preSubsection: '>',
+})
+
+themes.addTheme('colorASCII', themes.getTheme('ASCII'), {
+  progressbarTheme: {
+    preComplete: color('bgBrightWhite', 'brightWhite'),
+    complete: '#',
+    postComplete: color('reset'),
+    preRemaining: color('bgBrightBlack', 'brightBlack'),
+    remaining: '.',
+    postRemaining: color('reset'),
+  },
+})
+
+themes.addTheme('brailleSpinner', {
+  preProgressbar: '(',
+  postProgressbar: ')',
+  progressbarTheme: {
+    complete: '#',
+    remaining: '⠂',
+  },
+  activityIndicatorTheme: '⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏',
+  preSubsection: '>',
+})
+
+themes.addTheme('colorBrailleSpinner', themes.getTheme('brailleSpinner'), {
+  progressbarTheme: {
+    preComplete: color('bgBrightWhite', 'brightWhite'),
+    complete: '#',
+    postComplete: color('reset'),
+    preRemaining: color('bgBrightBlack', 'brightBlack'),
+    remaining: '⠂',
+    postRemaining: color('reset'),
+  },
+})
+
+themes.setDefault({}, 'ASCII')
+themes.setDefault({ hasColor: true }, 'colorASCII')
+themes.setDefault({ platform: 'darwin', hasUnicode: true }, 'brailleSpinner')
+themes.setDefault({ platform: 'darwin', hasUnicode: true, hasColor: true }, 'colorBrailleSpinner')
+themes.setDefault({ platform: 'linux', hasUnicode: true }, 'brailleSpinner')
+themes.setDefault({ platform: 'linux', hasUnicode: true, hasColor: true }, 'colorBrailleSpinner')
diff --git a/node_modules/node-gyp/node_modules/gauge/lib/wide-truncate.js b/node_modules/node-gyp/node_modules/gauge/lib/wide-truncate.js
new file mode 100644
index 0000000..5284a69
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/lib/wide-truncate.js
@@ -0,0 +1,31 @@
+'use strict'
+var stringWidth = require('string-width')
+var stripAnsi = require('strip-ansi')
+
+module.exports = wideTruncate
+
+function wideTruncate (str, target) {
+  if (stringWidth(str) === 0) {
+    return str
+  }
+  if (target <= 0) {
+    return ''
+  }
+  if (stringWidth(str) <= target) {
+    return str
+  }
+
+  // We compute the number of bytes of ansi sequences here and add
+  // that to our initial truncation to ensure that we don't slice one
+  // that we want to keep in half.
+  var noAnsi = stripAnsi(str)
+  var ansiSize = str.length + noAnsi.length
+  var truncated = str.slice(0, target + ansiSize)
+
+  // we have to shrink the result to account for our ansi sequence buffer
+  // (if an ansi sequence was truncated) and double width characters.
+  while (stringWidth(truncated) > target) {
+    truncated = truncated.slice(0, -1)
+  }
+  return truncated
+}
diff --git a/node_modules/node-gyp/node_modules/gauge/package.json b/node_modules/node-gyp/node_modules/gauge/package.json
new file mode 100644
index 0000000..bce3e68
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/gauge/package.json
@@ -0,0 +1,66 @@
+{
+  "name": "gauge",
+  "version": "4.0.4",
+  "description": "A terminal based horizontal gauge",
+  "main": "lib",
+  "scripts": {
+    "test": "tap",
+    "lint": "eslint \"**/*.js\"",
+    "postlint": "template-oss-check",
+    "lintfix": "npm run lint -- --fix",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags",
+    "snap": "tap",
+    "posttest": "npm run lint",
+    "template-oss-apply": "template-oss-apply --force"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/gauge.git"
+  },
+  "keywords": [
+    "progressbar",
+    "progress",
+    "gauge"
+  ],
+  "author": "GitHub Inc.",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/npm/gauge/issues"
+  },
+  "homepage": "https://github.com/npm/gauge",
+  "dependencies": {
+    "aproba": "^1.0.3 || ^2.0.0",
+    "color-support": "^1.1.3",
+    "console-control-strings": "^1.1.0",
+    "has-unicode": "^2.0.1",
+    "signal-exit": "^3.0.7",
+    "string-width": "^4.2.3",
+    "strip-ansi": "^6.0.1",
+    "wide-align": "^1.1.5"
+  },
+  "devDependencies": {
+    "@npmcli/eslint-config": "^3.0.1",
+    "@npmcli/template-oss": "3.2.0",
+    "readable-stream": "^3.6.0",
+    "tap": "^16.0.1"
+  },
+  "files": [
+    "bin/",
+    "lib/"
+  ],
+  "engines": {
+    "node": "^12.13.0 || ^14.15.0 || >=16.0.0"
+  },
+  "tap": {
+    "branches": 79,
+    "statements": 89,
+    "functions": 92,
+    "lines": 90
+  },
+  "templateOSS": {
+    "//@npmcli/template-oss": "This file is partially managed by @npmcli/template-oss. Edits may be overwritten.",
+    "version": "3.2.0"
+  }
+}
diff --git a/node_modules/node-gyp/node_modules/npmlog/LICENSE.md b/node_modules/node-gyp/node_modules/npmlog/LICENSE.md
new file mode 100644
index 0000000..5fc208f
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/npmlog/LICENSE.md
@@ -0,0 +1,20 @@
+<!-- This file is automatically added by @npmcli/template-oss. Do not edit. -->
+
+ISC License
+
+Copyright npm, Inc.
+
+Permission to use, copy, modify, and/or distribute this
+software for any purpose with or without fee is hereby
+granted, provided that the above copyright notice and this
+permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND NPM DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL NPM BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
+USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/node-gyp/node_modules/npmlog/README.md b/node_modules/node-gyp/node_modules/npmlog/README.md
new file mode 100644
index 0000000..268a4af
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/npmlog/README.md
@@ -0,0 +1,216 @@
+# npmlog
+
+The logger util that npm uses.
+
+This logger is very basic.  It does the logging for npm.  It supports
+custom levels and colored output.
+
+By default, logs are written to stderr.  If you want to send log messages
+to outputs other than streams, then you can change the `log.stream`
+member, or you can just listen to the events that it emits, and do
+whatever you want with them.
+
+# Installation
+
+```console
+npm install npmlog --save
+```
+
+# Basic Usage
+
+```javascript
+var log = require('npmlog')
+
+// additional stuff ---------------------------+
+// message ----------+                         |
+// prefix ----+      |                         |
+// level -+   |      |                         |
+//        v   v      v                         v
+    log.info('fyi', 'I have a kitty cat: %j', myKittyCat)
+```
+
+## log.level
+
+* {String}
+
+The level to display logs at.  Any logs at or above this level will be
+displayed.  The special level `silent` will prevent anything from being
+displayed ever.
+
+## log.record
+
+* {Array}
+
+An array of all the log messages that have been entered.
+
+## log.maxRecordSize
+
+* {Number}
+
+The maximum number of records to keep.  If log.record gets bigger than
+10% over this value, then it is sliced down to 90% of this value.
+
+The reason for the 10% window is so that it doesn't have to resize a
+large array on every log entry.
+
+## log.prefixStyle
+
+* {Object}
+
+A style object that specifies how prefixes are styled.  (See below)
+
+## log.headingStyle
+
+* {Object}
+
+A style object that specifies how the heading is styled.  (See below)
+
+## log.heading
+
+* {String} Default: ""
+
+If set, a heading that is printed at the start of every line.
+
+## log.stream
+
+* {Stream} Default: `process.stderr`
+
+The stream where output is written.
+
+## log.enableColor()
+
+Force colors to be used on all messages, regardless of the output
+stream.
+
+## log.disableColor()
+
+Disable colors on all messages.
+
+## log.enableProgress()
+
+Enable the display of log activity spinner and progress bar
+
+## log.disableProgress()
+
+Disable the display of a progress bar
+
+## log.enableUnicode()
+
+Force the unicode theme to be used for the progress bar.
+
+## log.disableUnicode()
+
+Disable the use of unicode in the progress bar.
+
+## log.setGaugeTemplate(template)
+
+Set a template for outputting the progress bar. See the [gauge documentation] for details.
+
+[gauge documentation]: https://npmjs.com/package/gauge
+
+## log.setGaugeThemeset(themes)
+
+Select a themeset to pick themes from for the progress bar. See the [gauge documentation] for details.
+
+## log.pause()
+
+Stop emitting messages to the stream, but do not drop them.
+
+## log.resume()
+
+Emit all buffered messages that were written while paused.
+
+## log.log(level, prefix, message, ...)
+
+* `level` {String} The level to emit the message at
+* `prefix` {String} A string prefix.  Set to "" to skip.
+* `message...` Arguments to `util.format`
+
+Emit a log message at the specified level.
+
+## log\[level](prefix, message, ...)
+
+For example,
+
+* log.silly(prefix, message, ...)
+* log.verbose(prefix, message, ...)
+* log.info(prefix, message, ...)
+* log.http(prefix, message, ...)
+* log.warn(prefix, message, ...)
+* log.error(prefix, message, ...)
+
+Like `log.log(level, prefix, message, ...)`.  In this way, each level is
+given a shorthand, so you can do `log.info(prefix, message)`.
+
+## log.addLevel(level, n, style, disp)
+
+* `level` {String} Level indicator
+* `n` {Number} The numeric level
+* `style` {Object} Object with fg, bg, inverse, etc.
+* `disp` {String} Optional replacement for `level` in the output.
+
+Sets up a new level with a shorthand function and so forth.
+
+Note that if the number is `Infinity`, then setting the level to that
+will cause all log messages to be suppressed.  If the number is
+`-Infinity`, then the only way to show it is to enable all log messages.
+
+## log.newItem(name, todo, weight)
+
+* `name` {String} Optional; progress item name.
+* `todo` {Number} Optional; total amount of work to be done. Default 0.
+* `weight` {Number} Optional; the weight of this item relative to others. Default 1.
+
+This adds a new `are-we-there-yet` item tracker to the progress tracker. The
+object returned has the `log[level]` methods but is otherwise an
+`are-we-there-yet` `Tracker` object.
+
+## log.newStream(name, todo, weight)
+
+This adds a new `are-we-there-yet` stream tracker to the progress tracker. The
+object returned has the `log[level]` methods but is otherwise an
+`are-we-there-yet` `TrackerStream` object.
+
+## log.newGroup(name, weight)
+
+This adds a new `are-we-there-yet` tracker group to the progress tracker. The
+object returned has the `log[level]` methods but is otherwise an
+`are-we-there-yet` `TrackerGroup` object.
+
+# Events
+
+Events are all emitted with the message object.
+
+* `log` Emitted for all messages
+* `log.<level>` Emitted for all messages with the `<level>` level.
+* `<prefix>` Messages with prefixes also emit their prefix as an event.
+
+# Style Objects
+
+Style objects can have the following fields:
+
+* `fg` {String} Color for the foreground text
+* `bg` {String} Color for the background
+* `bold`, `inverse`, `underline` {Boolean} Set the associated property
+* `bell` {Boolean} Make a noise (This is pretty annoying, probably.)
+
+# Message Objects
+
+Every log event is emitted with a message object, and the `log.record`
+list contains all of them that have been created.  They have the
+following fields:
+
+* `id` {Number}
+* `level` {String}
+* `prefix` {String}
+* `message` {String} Result of `util.format()`
+* `messageRaw` {Array} Arguments to `util.format()`
+
+# Blocking TTYs
+
+We use [`set-blocking`](https://npmjs.com/package/set-blocking) to set
+stderr and stdout blocking if they are tty's and have the setBlocking call.
+This is a work around for an issue in early versions of Node.js 6.x, which
+made stderr and stdout non-blocking on OSX. (They are always blocking
+Windows and were never blocking on Linux.) `npmlog` needs them to be blocking
+so that it can allow output to stdout and stderr to be interlaced.
diff --git a/node_modules/node-gyp/node_modules/npmlog/lib/log.js b/node_modules/node-gyp/node_modules/npmlog/lib/log.js
new file mode 100644
index 0000000..be650c6
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/npmlog/lib/log.js
@@ -0,0 +1,404 @@
+'use strict'
+var Progress = require('are-we-there-yet')
+var Gauge = require('gauge')
+var EE = require('events').EventEmitter
+var log = exports = module.exports = new EE()
+var util = require('util')
+
+var setBlocking = require('set-blocking')
+var consoleControl = require('console-control-strings')
+
+setBlocking(true)
+var stream = process.stderr
+Object.defineProperty(log, 'stream', {
+  set: function (newStream) {
+    stream = newStream
+    if (this.gauge) {
+      this.gauge.setWriteTo(stream, stream)
+    }
+  },
+  get: function () {
+    return stream
+  },
+})
+
+// by default, decide based on tty-ness.
+var colorEnabled
+log.useColor = function () {
+  return colorEnabled != null ? colorEnabled : stream.isTTY
+}
+
+log.enableColor = function () {
+  colorEnabled = true
+  this.gauge.setTheme({ hasColor: colorEnabled, hasUnicode: unicodeEnabled })
+}
+log.disableColor = function () {
+  colorEnabled = false
+  this.gauge.setTheme({ hasColor: colorEnabled, hasUnicode: unicodeEnabled })
+}
+
+// default level
+log.level = 'info'
+
+log.gauge = new Gauge(stream, {
+  enabled: false, // no progress bars unless asked
+  theme: { hasColor: log.useColor() },
+  template: [
+    { type: 'progressbar', length: 20 },
+    { type: 'activityIndicator', kerning: 1, length: 1 },
+    { type: 'section', default: '' },
+    ':',
+    { type: 'logline', kerning: 1, default: '' },
+  ],
+})
+
+log.tracker = new Progress.TrackerGroup()
+
+// we track this separately as we may need to temporarily disable the
+// display of the status bar for our own loggy purposes.
+log.progressEnabled = log.gauge.isEnabled()
+
+var unicodeEnabled
+
+log.enableUnicode = function () {
+  unicodeEnabled = true
+  this.gauge.setTheme({ hasColor: this.useColor(), hasUnicode: unicodeEnabled })
+}
+
+log.disableUnicode = function () {
+  unicodeEnabled = false
+  this.gauge.setTheme({ hasColor: this.useColor(), hasUnicode: unicodeEnabled })
+}
+
+log.setGaugeThemeset = function (themes) {
+  this.gauge.setThemeset(themes)
+}
+
+log.setGaugeTemplate = function (template) {
+  this.gauge.setTemplate(template)
+}
+
+log.enableProgress = function () {
+  if (this.progressEnabled) {
+    return
+  }
+
+  this.progressEnabled = true
+  this.tracker.on('change', this.showProgress)
+  if (this._paused) {
+    return
+  }
+
+  this.gauge.enable()
+}
+
+log.disableProgress = function () {
+  if (!this.progressEnabled) {
+    return
+  }
+  this.progressEnabled = false
+  this.tracker.removeListener('change', this.showProgress)
+  this.gauge.disable()
+}
+
+var trackerConstructors = ['newGroup', 'newItem', 'newStream']
+
+var mixinLog = function (tracker) {
+  // mixin the public methods from log into the tracker
+  // (except: conflicts and one's we handle specially)
+  Object.keys(log).forEach(function (P) {
+    if (P[0] === '_') {
+      return
+    }
+
+    if (trackerConstructors.filter(function (C) {
+      return C === P
+    }).length) {
+      return
+    }
+
+    if (tracker[P]) {
+      return
+    }
+
+    if (typeof log[P] !== 'function') {
+      return
+    }
+
+    var func = log[P]
+    tracker[P] = function () {
+      return func.apply(log, arguments)
+    }
+  })
+  // if the new tracker is a group, make sure any subtrackers get
+  // mixed in too
+  if (tracker instanceof Progress.TrackerGroup) {
+    trackerConstructors.forEach(function (C) {
+      var func = tracker[C]
+      tracker[C] = function () {
+        return mixinLog(func.apply(tracker, arguments))
+      }
+    })
+  }
+  return tracker
+}
+
+// Add tracker constructors to the top level log object
+trackerConstructors.forEach(function (C) {
+  log[C] = function () {
+    return mixinLog(this.tracker[C].apply(this.tracker, arguments))
+  }
+})
+
+log.clearProgress = function (cb) {
+  if (!this.progressEnabled) {
+    return cb && process.nextTick(cb)
+  }
+
+  this.gauge.hide(cb)
+}
+
+log.showProgress = function (name, completed) {
+  if (!this.progressEnabled) {
+    return
+  }
+
+  var values = {}
+  if (name) {
+    values.section = name
+  }
+
+  var last = log.record[log.record.length - 1]
+  if (last) {
+    values.subsection = last.prefix
+    var disp = log.disp[last.level] || last.level
+    var logline = this._format(disp, log.style[last.level])
+    if (last.prefix) {
+      logline += ' ' + this._format(last.prefix, this.prefixStyle)
+    }
+
+    logline += ' ' + last.message.split(/\r?\n/)[0]
+    values.logline = logline
+  }
+  values.completed = completed || this.tracker.completed()
+  this.gauge.show(values)
+}.bind(log) // bind for use in tracker's on-change listener
+
+// temporarily stop emitting, but don't drop
+log.pause = function () {
+  this._paused = true
+  if (this.progressEnabled) {
+    this.gauge.disable()
+  }
+}
+
+log.resume = function () {
+  if (!this._paused) {
+    return
+  }
+
+  this._paused = false
+
+  var b = this._buffer
+  this._buffer = []
+  b.forEach(function (m) {
+    this.emitLog(m)
+  }, this)
+  if (this.progressEnabled) {
+    this.gauge.enable()
+  }
+}
+
+log._buffer = []
+
+var id = 0
+log.record = []
+log.maxRecordSize = 10000
+log.log = function (lvl, prefix, message) {
+  var l = this.levels[lvl]
+  if (l === undefined) {
+    return this.emit('error', new Error(util.format(
+      'Undefined log level: %j', lvl)))
+  }
+
+  var a = new Array(arguments.length - 2)
+  var stack = null
+  for (var i = 2; i < arguments.length; i++) {
+    var arg = a[i - 2] = arguments[i]
+
+    // resolve stack traces to a plain string.
+    if (typeof arg === 'object' && arg instanceof Error && arg.stack) {
+      Object.defineProperty(arg, 'stack', {
+        value: stack = arg.stack + '',
+        enumerable: true,
+        writable: true,
+      })
+    }
+  }
+  if (stack) {
+    a.unshift(stack + '\n')
+  }
+  message = util.format.apply(util, a)
+
+  var m = {
+    id: id++,
+    level: lvl,
+    prefix: String(prefix || ''),
+    message: message,
+    messageRaw: a,
+  }
+
+  this.emit('log', m)
+  this.emit('log.' + lvl, m)
+  if (m.prefix) {
+    this.emit(m.prefix, m)
+  }
+
+  this.record.push(m)
+  var mrs = this.maxRecordSize
+  var n = this.record.length - mrs
+  if (n > mrs / 10) {
+    var newSize = Math.floor(mrs * 0.9)
+    this.record = this.record.slice(-1 * newSize)
+  }
+
+  this.emitLog(m)
+}.bind(log)
+
+log.emitLog = function (m) {
+  if (this._paused) {
+    this._buffer.push(m)
+    return
+  }
+  if (this.progressEnabled) {
+    this.gauge.pulse(m.prefix)
+  }
+
+  var l = this.levels[m.level]
+  if (l === undefined) {
+    return
+  }
+
+  if (l < this.levels[this.level]) {
+    return
+  }
+
+  if (l > 0 && !isFinite(l)) {
+    return
+  }
+
+  // If 'disp' is null or undefined, use the lvl as a default
+  // Allows: '', 0 as valid disp
+  var disp = log.disp[m.level] != null ? log.disp[m.level] : m.level
+  this.clearProgress()
+  m.message.split(/\r?\n/).forEach(function (line) {
+    var heading = this.heading
+    if (heading) {
+      this.write(heading, this.headingStyle)
+      this.write(' ')
+    }
+    this.write(disp, log.style[m.level])
+    var p = m.prefix || ''
+    if (p) {
+      this.write(' ')
+    }
+
+    this.write(p, this.prefixStyle)
+    this.write(' ' + line + '\n')
+  }, this)
+  this.showProgress()
+}
+
+log._format = function (msg, style) {
+  if (!stream) {
+    return
+  }
+
+  var output = ''
+  if (this.useColor()) {
+    style = style || {}
+    var settings = []
+    if (style.fg) {
+      settings.push(style.fg)
+    }
+
+    if (style.bg) {
+      settings.push('bg' + style.bg[0].toUpperCase() + style.bg.slice(1))
+    }
+
+    if (style.bold) {
+      settings.push('bold')
+    }
+
+    if (style.underline) {
+      settings.push('underline')
+    }
+
+    if (style.inverse) {
+      settings.push('inverse')
+    }
+
+    if (settings.length) {
+      output += consoleControl.color(settings)
+    }
+
+    if (style.beep) {
+      output += consoleControl.beep()
+    }
+  }
+  output += msg
+  if (this.useColor()) {
+    output += consoleControl.color('reset')
+  }
+
+  return output
+}
+
+log.write = function (msg, style) {
+  if (!stream) {
+    return
+  }
+
+  stream.write(this._format(msg, style))
+}
+
+log.addLevel = function (lvl, n, style, disp) {
+  // If 'disp' is null or undefined, use the lvl as a default
+  if (disp == null) {
+    disp = lvl
+  }
+
+  this.levels[lvl] = n
+  this.style[lvl] = style
+  if (!this[lvl]) {
+    this[lvl] = function () {
+      var a = new Array(arguments.length + 1)
+      a[0] = lvl
+      for (var i = 0; i < arguments.length; i++) {
+        a[i + 1] = arguments[i]
+      }
+
+      return this.log.apply(this, a)
+    }.bind(this)
+  }
+  this.disp[lvl] = disp
+}
+
+log.prefixStyle = { fg: 'magenta' }
+log.headingStyle = { fg: 'white', bg: 'black' }
+
+log.style = {}
+log.levels = {}
+log.disp = {}
+log.addLevel('silly', -Infinity, { inverse: true }, 'sill')
+log.addLevel('verbose', 1000, { fg: 'cyan', bg: 'black' }, 'verb')
+log.addLevel('info', 2000, { fg: 'green' })
+log.addLevel('timing', 2500, { fg: 'green', bg: 'black' })
+log.addLevel('http', 3000, { fg: 'green', bg: 'black' })
+log.addLevel('notice', 3500, { fg: 'cyan', bg: 'black' })
+log.addLevel('warn', 4000, { fg: 'black', bg: 'yellow' }, 'WARN')
+log.addLevel('error', 5000, { fg: 'red', bg: 'black' }, 'ERR!')
+log.addLevel('silent', Infinity)
+
+// allow 'error' prefix
+log.on('error', function () {})
diff --git a/node_modules/node-gyp/node_modules/npmlog/package.json b/node_modules/node-gyp/node_modules/npmlog/package.json
new file mode 100644
index 0000000..bdb5a38
--- /dev/null
+++ b/node_modules/node-gyp/node_modules/npmlog/package.json
@@ -0,0 +1,51 @@
+{
+  "author": "GitHub Inc.",
+  "name": "npmlog",
+  "description": "logger for npm",
+  "version": "6.0.2",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/npmlog.git"
+  },
+  "main": "lib/log.js",
+  "files": [
+    "bin/",
+    "lib/"
+  ],
+  "scripts": {
+    "test": "tap",
+    "npmclilint": "npmcli-lint",
+    "lint": "eslint \"**/*.js\"",
+    "lintfix": "npm run lint -- --fix",
+    "posttest": "npm run lint",
+    "postsnap": "npm run lintfix --",
+    "postlint": "template-oss-check",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags",
+    "snap": "tap",
+    "template-oss-apply": "template-oss-apply --force"
+  },
+  "dependencies": {
+    "are-we-there-yet": "^3.0.0",
+    "console-control-strings": "^1.1.0",
+    "gauge": "^4.0.3",
+    "set-blocking": "^2.0.0"
+  },
+  "devDependencies": {
+    "@npmcli/eslint-config": "^3.0.1",
+    "@npmcli/template-oss": "3.4.1",
+    "tap": "^16.0.1"
+  },
+  "license": "ISC",
+  "engines": {
+    "node": "^12.13.0 || ^14.15.0 || >=16.0.0"
+  },
+  "tap": {
+    "branches": 95
+  },
+  "templateOSS": {
+    "//@npmcli/template-oss": "This file is partially managed by @npmcli/template-oss. Edits may be overwritten.",
+    "version": "3.4.1"
+  }
+}
diff --git a/node_modules/node-gyp/package.json b/node_modules/node-gyp/package.json
new file mode 100644
index 0000000..fbeae5e
--- /dev/null
+++ b/node_modules/node-gyp/package.json
@@ -0,0 +1,50 @@
+{
+  "name": "node-gyp",
+  "description": "Node.js native addon build tool",
+  "license": "MIT",
+  "keywords": [
+    "native",
+    "addon",
+    "module",
+    "c",
+    "c++",
+    "bindings",
+    "gyp"
+  ],
+  "version": "8.4.1",
+  "installVersion": 9,
+  "author": "Nathan Rajlich <nathan@tootallnate.net> (http://tootallnate.net)",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/nodejs/node-gyp.git"
+  },
+  "preferGlobal": true,
+  "bin": "./bin/node-gyp.js",
+  "main": "./lib/node-gyp.js",
+  "dependencies": {
+    "env-paths": "^2.2.0",
+    "glob": "^7.1.4",
+    "graceful-fs": "^4.2.6",
+    "make-fetch-happen": "^9.1.0",
+    "nopt": "^5.0.0",
+    "npmlog": "^6.0.0",
+    "rimraf": "^3.0.2",
+    "semver": "^7.3.5",
+    "tar": "^6.1.2",
+    "which": "^2.0.2"
+  },
+  "engines": {
+    "node": ">= 10.12.0"
+  },
+  "devDependencies": {
+    "bindings": "^1.5.0",
+    "nan": "^2.14.2",
+    "require-inject": "^1.4.4",
+    "standard": "^14.3.4",
+    "tap": "^12.7.0"
+  },
+  "scripts": {
+    "lint": "standard */*.js test/**/*.js",
+    "test": "npm run lint && tap --timeout=120 test/test-*"
+  }
+}
diff --git a/node_modules/node-gyp/src/win_delay_load_hook.cc b/node_modules/node-gyp/src/win_delay_load_hook.cc
new file mode 100644
index 0000000..169f802
--- /dev/null
+++ b/node_modules/node-gyp/src/win_delay_load_hook.cc
@@ -0,0 +1,39 @@
+/*
+ * When this file is linked to a DLL, it sets up a delay-load hook that
+ * intervenes when the DLL is trying to load the host executable
+ * dynamically. Instead of trying to locate the .exe file it'll just
+ * return a handle to the process image.
+ *
+ * This allows compiled addons to work when the host executable is renamed.
+ */
+
+#ifdef _MSC_VER
+
+#pragma managed(push, off)
+
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+
+#include <windows.h>
+
+#include <delayimp.h>
+#include <string.h>
+
+static FARPROC WINAPI load_exe_hook(unsigned int event, DelayLoadInfo* info) {
+  HMODULE m;
+  if (event != dliNotePreLoadLibrary)
+    return NULL;
+
+  if (_stricmp(info->szDll, HOST_BINARY) != 0)
+    return NULL;
+
+  m = GetModuleHandle(NULL);
+  return (FARPROC) m;
+}
+
+decltype(__pfnDliNotifyHook2) __pfnDliNotifyHook2 = load_exe_hook;
+
+#pragma managed(pop)
+
+#endif
diff --git a/node_modules/node-gyp/test/common.js b/node_modules/node-gyp/test/common.js
new file mode 100644
index 0000000..b714ee2
--- /dev/null
+++ b/node_modules/node-gyp/test/common.js
@@ -0,0 +1,3 @@
+const envPaths = require('env-paths')
+
+module.exports.devDir = () => envPaths('node-gyp', { suffix: '' }).cache
diff --git a/node_modules/node-gyp/test/fixtures/VS_2017_BuildTools_minimal.txt b/node_modules/node-gyp/test/fixtures/VS_2017_BuildTools_minimal.txt
new file mode 100644
index 0000000..244f6b0
--- /dev/null
+++ b/node_modules/node-gyp/test/fixtures/VS_2017_BuildTools_minimal.txt
@@ -0,0 +1 @@
+[{"path":"C:\\Program Files (x86)\\Microsoft Visual 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diff --git a/node_modules/node-gyp/test/fixtures/VS_2017_Community_workload.txt b/node_modules/node-gyp/test/fixtures/VS_2017_Community_workload.txt
new file mode 100644
index 0000000..dd5e77d
--- /dev/null
+++ b/node_modules/node-gyp/test/fixtures/VS_2017_Community_workload.txt
@@ -0,0 +1 @@
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diff --git a/node_modules/node-gyp/test/fixtures/VS_2017_Express.txt b/node_modules/node-gyp/test/fixtures/VS_2017_Express.txt
new file mode 100644
index 0000000..c4b3b5f
--- /dev/null
+++ b/node_modules/node-gyp/test/fixtures/VS_2017_Express.txt
@@ -0,0 +1 @@
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diff --git a/node_modules/node-gyp/test/fixtures/VS_2017_Unusable.txt b/node_modules/node-gyp/test/fixtures/VS_2017_Unusable.txt
new file mode 100644
index 0000000..fc0a257
--- /dev/null
+++ b/node_modules/node-gyp/test/fixtures/VS_2017_Unusable.txt
@@ -0,0 +1 @@
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diff --git a/node_modules/node-gyp/test/fixtures/VS_2019_BuildTools_minimal.txt b/node_modules/node-gyp/test/fixtures/VS_2019_BuildTools_minimal.txt
new file mode 100644
index 0000000..f07d254
--- /dev/null
+++ b/node_modules/node-gyp/test/fixtures/VS_2019_BuildTools_minimal.txt
@@ -0,0 +1 @@
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diff --git a/node_modules/node-gyp/test/fixtures/VS_2019_Community_workload.txt b/node_modules/node-gyp/test/fixtures/VS_2019_Community_workload.txt
new file mode 100644
index 0000000..50071c2
--- /dev/null
+++ b/node_modules/node-gyp/test/fixtures/VS_2019_Community_workload.txt
@@ -0,0 +1 @@
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diff --git a/node_modules/node-gyp/test/fixtures/VS_2019_Preview.txt b/node_modules/node-gyp/test/fixtures/VS_2019_Preview.txt
new file mode 100644
index 0000000..806509e
--- /dev/null
+++ b/node_modules/node-gyp/test/fixtures/VS_2019_Preview.txt
@@ -0,0 +1 @@
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diff --git a/node_modules/node-gyp/test/fixtures/ca-bundle.crt b/node_modules/node-gyp/test/fixtures/ca-bundle.crt
new file mode 100644
index 0000000..fb1dea9
--- /dev/null
+++ b/node_modules/node-gyp/test/fixtures/ca-bundle.crt
@@ -0,0 +1,40 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+-----BEGIN CERTIFICATE-----
+MIIDbzCCAlcCAmm6MA0GCSqGSIb3DQEBCwUAMH0xCzAJBgNVBAYTAlVTMQswCQYD
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+-----END CERTIFICATE-----
diff --git a/node_modules/node-gyp/test/fixtures/ca.crt b/node_modules/node-gyp/test/fixtures/ca.crt
new file mode 100644
index 0000000..aaf9757
--- /dev/null
+++ b/node_modules/node-gyp/test/fixtures/ca.crt
@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----
+MIIDZDCCAkwCCQCAzfCLqrJvuTANBgkqhkiG9w0BAQsFADB0MQswCQYDVQQGEwJV
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+-----END CERTIFICATE-----
diff --git a/node_modules/node-gyp/test/fixtures/nodedir/include/node/config.gypi b/node_modules/node-gyp/test/fixtures/nodedir/include/node/config.gypi
new file mode 100644
index 0000000..e767534
--- /dev/null
+++ b/node_modules/node-gyp/test/fixtures/nodedir/include/node/config.gypi
@@ -0,0 +1,6 @@
+# Test configuration
+{
+  'variables': {
+    'build_with_electron': true
+  }
+}
diff --git a/node_modules/node-gyp/test/fixtures/server.crt b/node_modules/node-gyp/test/fixtures/server.crt
new file mode 100644
index 0000000..5d0c440
--- /dev/null
+++ b/node_modules/node-gyp/test/fixtures/server.crt
@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/node_modules/node-gyp/test/fixtures/server.key b/node_modules/node-gyp/test/fixtures/server.key
new file mode 100644
index 0000000..a844739
--- /dev/null
+++ b/node_modules/node-gyp/test/fixtures/server.key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
diff --git a/node_modules/node-gyp/test/fixtures/test-charmap.py b/node_modules/node-gyp/test/fixtures/test-charmap.py
new file mode 100644
index 0000000..63aa77b
--- /dev/null
+++ b/node_modules/node-gyp/test/fixtures/test-charmap.py
@@ -0,0 +1,31 @@
+import sys
+import locale
+
+try:
+    reload(sys)
+except NameError:  # Python 3
+    pass
+
+
+def main():
+    encoding = locale.getdefaultlocale()[1]
+    if not encoding:
+        return False
+
+    try:
+        sys.setdefaultencoding(encoding)
+    except AttributeError:  # Python 3
+        pass
+
+    textmap = {
+        "cp936": "\u4e2d\u6587",
+        "cp1252": "Lat\u012Bna",
+        "cp932": "\u306b\u307b\u3093\u3054",
+    }
+    if encoding in textmap:
+        print(textmap[encoding])
+    return True
+
+
+if __name__ == "__main__":
+    print(main())
diff --git a/node_modules/node-gyp/test/process-exec-sync.js b/node_modules/node-gyp/test/process-exec-sync.js
new file mode 100644
index 0000000..21763bc
--- /dev/null
+++ b/node_modules/node-gyp/test/process-exec-sync.js
@@ -0,0 +1,140 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const childProcess = require('child_process')
+
+function startsWith (str, search, pos) {
+  if (String.prototype.startsWith) {
+    return str.startsWith(search, pos)
+  }
+
+  return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search
+}
+
+function processExecSync (file, args, options) {
+  var child, error, timeout, tmpdir, command
+  command = makeCommand(file, args)
+
+  /*
+    this function emulates child_process.execSync for legacy node <= 0.10.x
+    derived from https://github.com/gvarsanyi/sync-exec/blob/master/js/sync-exec.js
+  */
+
+  options = options || {}
+  // init timeout
+  timeout = Date.now() + options.timeout
+  // init tmpdir
+  var osTempBase = '/tmp'
+  var os = determineOS()
+  osTempBase = '/tmp'
+
+  if (process.env.TMP) {
+    osTempBase = process.env.TMP
+  }
+
+  if (osTempBase[osTempBase.length - 1] !== '/') {
+    osTempBase += '/'
+  }
+
+  tmpdir = osTempBase + 'processExecSync.' + Date.now() + Math.random()
+  fs.mkdirSync(tmpdir)
+
+  // init command
+  if (os === 'linux') {
+    command = '(' + command + ' > ' + tmpdir + '/stdout 2> ' + tmpdir +
+      '/stderr); echo $? > ' + tmpdir + '/status'
+  } else {
+    command = '(' + command + ' > ' + tmpdir + '/stdout 2> ' + tmpdir +
+      '/stderr) | echo %errorlevel% > ' + tmpdir + '/status | exit'
+  }
+
+  // init child
+  child = childProcess.exec(command, options)
+
+  var maxTry = 100000 // increases the test time by 6 seconds on win-2016-node-0.10
+  var tryCount = 0
+  while (tryCount < maxTry) {
+    try {
+      var x = fs.readFileSync(tmpdir + '/status')
+      if (x.toString() === '0') {
+        break
+      }
+    } catch (ignore) {}
+    tryCount++
+    if (Date.now() > timeout) {
+      error = child
+      break
+    }
+  }
+
+  ['stdout', 'stderr', 'status'].forEach(function (file) {
+    child[file] = fs.readFileSync(tmpdir + '/' + file, options.encoding)
+    setTimeout(unlinkFile, 500, tmpdir + '/' + file)
+  })
+
+  child.status = Number(child.status)
+  if (child.status !== 0) {
+    error = child
+  }
+
+  try {
+    fs.rmdirSync(tmpdir)
+  } catch (ignore) {}
+  if (error) {
+    throw error
+  }
+  return child.stdout
+}
+
+function makeCommand (file, args) {
+  var command, quote
+  command = file
+  if (args.length > 0) {
+    for (var i in args) {
+      command = command + ' '
+      if (args[i][0] === '-') {
+        command = command + args[i]
+      } else {
+        if (!quote) {
+          command = command + '"'
+          quote = true
+        }
+        command = command + args[i]
+        if (quote) {
+          if (args.length === (parseInt(i) + 1)) {
+            command = command + '"'
+          }
+        }
+      }
+    }
+  }
+  return command
+}
+
+function determineOS () {
+  var os = ''
+  var tmpVar = ''
+  if (process.env.OSTYPE) {
+    tmpVar = process.env.OSTYPE
+  } else if (process.env.OS) {
+    tmpVar = process.env.OS
+  } else {
+    // default is linux
+    tmpVar = 'linux'
+  }
+
+  if (startsWith(tmpVar, 'linux')) {
+    os = 'linux'
+  }
+  if (startsWith(tmpVar, 'win')) {
+    os = 'win'
+  }
+
+  return os
+}
+
+function unlinkFile (file) {
+  fs.unlinkSync(file)
+}
+
+module.exports = processExecSync
diff --git a/node_modules/node-gyp/test/simple-proxy.js b/node_modules/node-gyp/test/simple-proxy.js
new file mode 100644
index 0000000..cb0dfcf
--- /dev/null
+++ b/node_modules/node-gyp/test/simple-proxy.js
@@ -0,0 +1,27 @@
+'use strict'
+
+const http = require('http')
+const https = require('https')
+const server = http.createServer(handler)
+const port = +process.argv[2]
+const prefix = process.argv[3]
+const upstream = process.argv[4]
+var calls = 0
+
+server.listen(port)
+
+function handler (req, res) {
+  if (req.url.indexOf(prefix) !== 0) {
+    throw new Error('request url [' + req.url + '] does not start with [' + prefix + ']')
+  }
+
+  var upstreamUrl = upstream + req.url.substring(prefix.length)
+  https.get(upstreamUrl, function (ures) {
+    ures.on('end', function () {
+      if (++calls === 2) {
+        server.close()
+      }
+    })
+    ures.pipe(res)
+  })
+}
diff --git a/node_modules/node-gyp/test/test-addon.js b/node_modules/node-gyp/test/test-addon.js
new file mode 100644
index 0000000..f79eff7
--- /dev/null
+++ b/node_modules/node-gyp/test/test-addon.js
@@ -0,0 +1,150 @@
+'use strict'
+
+const test = require('tap').test
+const path = require('path')
+const fs = require('graceful-fs')
+const childProcess = require('child_process')
+const os = require('os')
+const addonPath = path.resolve(__dirname, 'node_modules', 'hello_world')
+const nodeGyp = path.resolve(__dirname, '..', 'bin', 'node-gyp.js')
+const execFileSync = childProcess.execFileSync || require('./process-exec-sync')
+const execFile = childProcess.execFile
+
+function runHello (hostProcess) {
+  if (!hostProcess) {
+    hostProcess = process.execPath
+  }
+  var testCode = "console.log(require('hello_world').hello())"
+  return execFileSync(hostProcess, ['-e', testCode], { cwd: __dirname }).toString()
+}
+
+function getEncoding () {
+  var code = 'import locale;print(locale.getdefaultlocale()[1])'
+  return execFileSync('python', ['-c', code]).toString().trim()
+}
+
+function checkCharmapValid () {
+  var data
+  try {
+    data = execFileSync('python', ['fixtures/test-charmap.py'],
+      { cwd: __dirname })
+  } catch (err) {
+    return false
+  }
+  var lines = data.toString().trim().split('\n')
+  return lines.pop() === 'True'
+}
+
+test('build simple addon', function (t) {
+  t.plan(3)
+
+  // Set the loglevel otherwise the output disappears when run via 'npm test'
+  var cmd = [nodeGyp, 'rebuild', '-C', addonPath, '--loglevel=verbose']
+  var proc = execFile(process.execPath, cmd, function (err, stdout, stderr) {
+    var logLines = stderr.toString().trim().split(/\r?\n/)
+    var lastLine = logLines[logLines.length - 1]
+    t.strictEqual(err, null)
+    t.strictEqual(lastLine, 'gyp info ok', 'should end in ok')
+    t.strictEqual(runHello().trim(), 'world')
+  })
+  proc.stdout.setEncoding('utf-8')
+  proc.stderr.setEncoding('utf-8')
+})
+
+test('build simple addon in path with non-ascii characters', function (t) {
+  t.plan(1)
+
+  if (!checkCharmapValid()) {
+    return t.skip('python console app can\'t encode non-ascii character.')
+  }
+
+  var testDirNames = {
+    cp936: '文件夹',
+    cp1252: 'Latīna',
+    cp932: 'フォルダ'
+  }
+  // Select non-ascii characters by current encoding
+  var testDirName = testDirNames[getEncoding()]
+  // If encoding is UTF-8 or other then no need to test
+  if (!testDirName) {
+    return t.skip('no need to test')
+  }
+
+  t.plan(3)
+
+  var data
+  var configPath = path.join(addonPath, 'build', 'config.gypi')
+  try {
+    data = fs.readFileSync(configPath, 'utf8')
+  } catch (err) {
+    t.error(err)
+    return
+  }
+  var config = JSON.parse(data.replace(/#.+\n/, ''))
+  var nodeDir = config.variables.nodedir
+  var testNodeDir = path.join(addonPath, testDirName)
+  // Create symbol link to path with non-ascii characters
+  try {
+    fs.symlinkSync(nodeDir, testNodeDir, 'dir')
+  } catch (err) {
+    switch (err.code) {
+      case 'EEXIST': break
+      case 'EPERM':
+        t.error(err, 'Please try to running console as an administrator')
+        return
+      default:
+        t.error(err)
+        return
+    }
+  }
+
+  var cmd = [
+    nodeGyp,
+    'rebuild',
+    '-C',
+    addonPath,
+    '--loglevel=verbose',
+    '-nodedir=' + testNodeDir
+  ]
+  var proc = execFile(process.execPath, cmd, function (err, stdout, stderr) {
+    try {
+      fs.unlink(testNodeDir)
+    } catch (err) {
+      t.error(err)
+    }
+
+    var logLines = stderr.toString().trim().split(/\r?\n/)
+    var lastLine = logLines[logLines.length - 1]
+    t.strictEqual(err, null)
+    t.strictEqual(lastLine, 'gyp info ok', 'should end in ok')
+    t.strictEqual(runHello().trim(), 'world')
+  })
+  proc.stdout.setEncoding('utf-8')
+  proc.stderr.setEncoding('utf-8')
+})
+
+test('addon works with renamed host executable', function (t) {
+  // No `fs.copyFileSync` before node8.
+  if (process.version.substr(1).split('.')[0] < 8) {
+    t.skip('skipping test for old node version')
+    t.end()
+    return
+  }
+
+  t.plan(3)
+
+  var notNodePath = path.join(os.tmpdir(), 'notnode' + path.extname(process.execPath))
+  fs.copyFileSync(process.execPath, notNodePath)
+
+  var cmd = [nodeGyp, 'rebuild', '-C', addonPath, '--loglevel=verbose']
+  var proc = execFile(process.execPath, cmd, function (err, stdout, stderr) {
+    var logLines = stderr.toString().trim().split(/\r?\n/)
+    var lastLine = logLines[logLines.length - 1]
+    t.strictEqual(err, null)
+    t.strictEqual(lastLine, 'gyp info ok', 'should end in ok')
+    t.strictEqual(runHello(notNodePath).trim(), 'world')
+    fs.unlinkSync(notNodePath)
+  })
+  proc.stdout.setEncoding('utf-8')
+  proc.stderr.setEncoding('utf-8')
+})
diff --git a/node_modules/node-gyp/test/test-configure-python.js b/node_modules/node-gyp/test/test-configure-python.js
new file mode 100644
index 0000000..4290e7a
--- /dev/null
+++ b/node_modules/node-gyp/test/test-configure-python.js
@@ -0,0 +1,82 @@
+'use strict'
+
+const test = require('tap').test
+const path = require('path')
+const devDir = require('./common').devDir()
+const gyp = require('../lib/node-gyp')
+const requireInject = require('require-inject')
+const configure = requireInject('../lib/configure', {
+  'graceful-fs': {
+    openSync: function () { return 0 },
+    closeSync: function () { },
+    writeFile: function (file, data, cb) { cb() },
+    stat: function (file, cb) { cb(null, {}) },
+    mkdir: function (dir, options, cb) { cb() },
+    promises: {
+      writeFile: function (file, data) { return Promise.resolve(null) }
+    }
+  }
+})
+
+const EXPECTED_PYPATH = path.join(__dirname, '..', 'gyp', 'pylib')
+const SEPARATOR = process.platform === 'win32' ? ';' : ':'
+const SPAWN_RESULT = { on: function () { } }
+
+require('npmlog').level = 'warn'
+
+test('configure PYTHONPATH with no existing env', function (t) {
+  t.plan(1)
+
+  delete process.env.PYTHONPATH
+
+  var prog = gyp()
+  prog.parseArgv([])
+  prog.spawn = function () {
+    t.equal(process.env.PYTHONPATH, EXPECTED_PYPATH)
+    return SPAWN_RESULT
+  }
+  prog.devDir = devDir
+  configure(prog, [], t.fail)
+})
+
+test('configure PYTHONPATH with existing env of one dir', function (t) {
+  t.plan(2)
+
+  var existingPath = path.join('a', 'b')
+  process.env.PYTHONPATH = existingPath
+
+  var prog = gyp()
+  prog.parseArgv([])
+  prog.spawn = function () {
+    t.equal(process.env.PYTHONPATH, [EXPECTED_PYPATH, existingPath].join(SEPARATOR))
+
+    var dirs = process.env.PYTHONPATH.split(SEPARATOR)
+    t.deepEqual(dirs, [EXPECTED_PYPATH, existingPath])
+
+    return SPAWN_RESULT
+  }
+  prog.devDir = devDir
+  configure(prog, [], t.fail)
+})
+
+test('configure PYTHONPATH with existing env of multiple dirs', function (t) {
+  t.plan(2)
+
+  var pythonDir1 = path.join('a', 'b')
+  var pythonDir2 = path.join('b', 'c')
+  var existingPath = [pythonDir1, pythonDir2].join(SEPARATOR)
+  process.env.PYTHONPATH = existingPath
+
+  var prog = gyp()
+  prog.parseArgv([])
+  prog.spawn = function () {
+    t.equal(process.env.PYTHONPATH, [EXPECTED_PYPATH, existingPath].join(SEPARATOR))
+
+    var dirs = process.env.PYTHONPATH.split(SEPARATOR)
+    t.deepEqual(dirs, [EXPECTED_PYPATH, pythonDir1, pythonDir2])
+
+    return SPAWN_RESULT
+  }
+  prog.devDir = devDir
+  configure(prog, [], t.fail)
+})
diff --git a/node_modules/node-gyp/test/test-create-config-gypi.js b/node_modules/node-gyp/test/test-create-config-gypi.js
new file mode 100644
index 0000000..eeac73f
--- /dev/null
+++ b/node_modules/node-gyp/test/test-create-config-gypi.js
@@ -0,0 +1,70 @@
+'use strict'
+
+const path = require('path')
+const { test } = require('tap')
+const gyp = require('../lib/node-gyp')
+const createConfigGypi = require('../lib/create-config-gypi')
+const { parseConfigGypi, getCurrentConfigGypi } = createConfigGypi.test
+
+test('config.gypi with no options', async function (t) {
+  t.plan(2)
+
+  const prog = gyp()
+  prog.parseArgv([])
+
+  const config = await getCurrentConfigGypi({ gyp: prog, vsInfo: {} })
+  t.equal(config.target_defaults.default_configuration, 'Release')
+  t.equal(config.variables.target_arch, process.arch)
+})
+
+test('config.gypi with --debug', async function (t) {
+  t.plan(1)
+
+  const prog = gyp()
+  prog.parseArgv(['_', '_', '--debug'])
+
+  const config = await getCurrentConfigGypi({ gyp: prog, vsInfo: {} })
+  t.equal(config.target_defaults.default_configuration, 'Debug')
+})
+
+test('config.gypi with custom options', async function (t) {
+  t.plan(1)
+
+  const prog = gyp()
+  prog.parseArgv(['_', '_', '--shared-libxml2'])
+
+  const config = await getCurrentConfigGypi({ gyp: prog, vsInfo: {} })
+  t.equal(config.variables.shared_libxml2, true)
+})
+
+test('config.gypi with nodedir', async function (t) {
+  t.plan(1)
+
+  const nodeDir = path.join(__dirname, 'fixtures', 'nodedir')
+
+  const prog = gyp()
+  prog.parseArgv(['_', '_', `--nodedir=${nodeDir}`])
+
+  const config = await getCurrentConfigGypi({ gyp: prog, nodeDir, vsInfo: {} })
+  t.equal(config.variables.build_with_electron, true)
+})
+
+test('config.gypi with --force-process-config', async function (t) {
+  t.plan(1)
+
+  const nodeDir = path.join(__dirname, 'fixtures', 'nodedir')
+
+  const prog = gyp()
+  prog.parseArgv(['_', '_', '--force-process-config', `--nodedir=${nodeDir}`])
+
+  const config = await getCurrentConfigGypi({ gyp: prog, nodeDir, vsInfo: {} })
+  t.equal(config.variables.build_with_electron, undefined)
+})
+
+test('config.gypi parsing', function (t) {
+  t.plan(1)
+
+  const str = "# Some comments\n{'variables': {'multiline': 'A'\n'B'}}"
+  const config = parseConfigGypi(str)
+  t.deepEqual(config, { variables: { multiline: 'AB' } })
+})
diff --git a/node_modules/node-gyp/test/test-download.js b/node_modules/node-gyp/test/test-download.js
new file mode 100644
index 0000000..71a3c0d
--- /dev/null
+++ b/node_modules/node-gyp/test/test-download.js
@@ -0,0 +1,207 @@
+'use strict'
+
+const { test } = require('tap')
+const fs = require('fs')
+const path = require('path')
+const util = require('util')
+const http = require('http')
+const https = require('https')
+const install = require('../lib/install')
+const semver = require('semver')
+const devDir = require('./common').devDir()
+const rimraf = require('rimraf')
+const gyp = require('../lib/node-gyp')
+const log = require('npmlog')
+
+log.level = 'warn'
+
+test('download over http', async (t) => {
+  t.plan(2)
+
+  const server = http.createServer((req, res) => {
+    t.strictEqual(req.headers['user-agent'], `node-gyp v42 (node ${process.version})`)
+    res.end('ok')
+  })
+
+  t.tearDown(() => new Promise((resolve) => server.close(resolve)))
+
+  const host = 'localhost'
+  await new Promise((resolve) => server.listen(0, host, resolve))
+  const { port } = server.address()
+  const gyp = {
+    opts: {},
+    version: '42'
+  }
+  const url = `http://${host}:${port}`
+  const res = await install.test.download(gyp, url)
+  t.strictEqual(await res.text(), 'ok')
+})
+
+test('download over https with custom ca', async (t) => {
+  t.plan(3)
+
+  const cafile = path.join(__dirname, '/fixtures/ca.crt')
+  const [cert, key, ca] = await Promise.all([
+    fs.promises.readFile(path.join(__dirname, 'fixtures/server.crt'), 'utf8'),
+    fs.promises.readFile(path.join(__dirname, 'fixtures/server.key'), 'utf8'),
+    install.test.readCAFile(cafile)
+  ])
+
+  t.strictEqual(ca.length, 1)
+
+  const options = { ca: ca, cert: cert, key: key }
+  const server = https.createServer(options, (req, res) => {
+    t.strictEqual(req.headers['user-agent'], `node-gyp v42 (node ${process.version})`)
+    res.end('ok')
+  })
+
+  t.tearDown(() => new Promise((resolve) => server.close(resolve)))
+
+  server.on('clientError', (err) => { throw err })
+
+  const host = 'localhost'
+  await new Promise((resolve) => server.listen(0, host, resolve))
+  const { port } = server.address()
+  const gyp = {
+    opts: { cafile },
+    version: '42'
+  }
+  const url = `https://${host}:${port}`
+  const res = await install.test.download(gyp, url)
+  t.strictEqual(await res.text(), 'ok')
+})
+
+test('download over http with proxy', async (t) => {
+  t.plan(2)
+
+  const server = http.createServer((_, res) => {
+    res.end('ok')
+  })
+
+  const pserver = http.createServer((req, res) => {
+    t.strictEqual(req.headers['user-agent'], `node-gyp v42 (node ${process.version})`)
+    res.end('proxy ok')
+  })
+
+  t.tearDown(() => Promise.all([
+    new Promise((resolve) => server.close(resolve)),
+    new Promise((resolve) => pserver.close(resolve))
+  ]))
+
+  const host = 'localhost'
+  await new Promise((resolve) => server.listen(0, host, resolve))
+  const { port } = server.address()
+  await new Promise((resolve) => pserver.listen(port + 1, host, resolve))
+  const gyp = {
+    opts: {
+      proxy: `http://${host}:${port + 1}`,
+      noproxy: 'bad'
+    },
+    version: '42'
+  }
+  const url = `http://${host}:${port}`
+  const res = await install.test.download(gyp, url)
+  t.strictEqual(await res.text(), 'proxy ok')
+})
+
+test('download over http with noproxy', async (t) => {
+  t.plan(2)
+
+  const server = http.createServer((req, res) => {
+    t.strictEqual(req.headers['user-agent'], `node-gyp v42 (node ${process.version})`)
+    res.end('ok')
+  })
+
+  const pserver = http.createServer((_, res) => {
+    res.end('proxy ok')
+  })
+
+  t.tearDown(() => Promise.all([
+    new Promise((resolve) => server.close(resolve)),
+    new Promise((resolve) => pserver.close(resolve))
+  ]))
+
+  const host = 'localhost'
+  await new Promise((resolve) => server.listen(0, host, resolve))
+  const { port } = server.address()
+  await new Promise((resolve) => pserver.listen(port + 1, host, resolve))
+  const gyp = {
+    opts: {
+      proxy: `http://${host}:${port + 1}`,
+      noproxy: host
+    },
+    version: '42'
+  }
+  const url = `http://${host}:${port}`
+  const res = await install.test.download(gyp, url)
+  t.strictEqual(await res.text(), 'ok')
+})
+
+test('download with missing cafile', async (t) => {
+  t.plan(1)
+  const gyp = {
+    opts: { cafile: 'no.such.file' }
+  }
+  try {
+    await install.test.download(gyp, {}, 'http://bad/')
+  } catch (e) {
+    t.ok(/no.such.file/.test(e.message))
+  }
+})
+
+test('check certificate splitting', async (t) => {
+  const cas = await install.test.readCAFile(path.join(__dirname, 'fixtures/ca-bundle.crt'))
+  t.plan(2)
+  t.strictEqual(cas.length, 2)
+  t.notStrictEqual(cas[0], cas[1])
+})
+
+// only run this test if we are running a version of Node with predictable version path behavior
+
+test('download headers (actual)', async (t) => {
+  if (process.env.FAST_TEST ||
+      process.release.name !== 'node' ||
+      semver.prerelease(process.version) !== null ||
+      semver.satisfies(process.version, '<10')) {
+    return t.skip('Skipping actual download of headers due to test environment configuration')
+  }
+
+  t.plan(12)
+
+  const expectedDir = path.join(devDir, process.version.replace(/^v/, ''))
+  await util.promisify(rimraf)(expectedDir)
+
+  const prog = gyp()
+  prog.parseArgv([])
+  prog.devDir = devDir
+  log.level = 'warn'
+  await util.promisify(install)(prog, [])
+
+  const data = await fs.promises.readFile(path.join(expectedDir, 'installVersion'), 'utf8')
+  t.strictEqual(data, '9\n', 'correct installVersion')
+
+  const list = await fs.promises.readdir(path.join(expectedDir, 'include/node'))
+  t.ok(list.includes('common.gypi'))
+  t.ok(list.includes('config.gypi'))
+  t.ok(list.includes('node.h'))
+  t.ok(list.includes('node_version.h'))
+  t.ok(list.includes('openssl'))
+  t.ok(list.includes('uv'))
+  t.ok(list.includes('uv.h'))
+  t.ok(list.includes('v8-platform.h'))
+  t.ok(list.includes('v8.h'))
+  t.ok(list.includes('zlib.h'))
+
+  const lines = (await fs.promises.readFile(path.join(expectedDir, 'include/node/node_version.h'), 'utf8')).split('\n')
+
+  // extract the 3 version parts from the defines to build a valid version string and
+  // and check them against our current env version
+  const version = ['major', 'minor', 'patch'].reduce((version, type) => {
+    const re = new RegExp(`^#define\\sNODE_${type.toUpperCase()}_VERSION`)
+    const line = lines.find((l) => re.test(l))
+    const i = line ? parseInt(line.replace(/^[^0-9]+([0-9]+).*$/, '$1'), 10) : 'ERROR'
+    return `${version}${type !== 'major' ? '.' : 'v'}${i}`
+  }, '')
+
+  t.strictEqual(version, process.version)
+})
diff --git a/node_modules/node-gyp/test/test-find-accessible-sync.js b/node_modules/node-gyp/test/test-find-accessible-sync.js
new file mode 100644
index 0000000..0a2e584
--- /dev/null
+++ b/node_modules/node-gyp/test/test-find-accessible-sync.js
@@ -0,0 +1,84 @@
+'use strict'
+
+const test = require('tap').test
+const path = require('path')
+const requireInject = require('require-inject')
+const configure = requireInject('../lib/configure', {
+  'graceful-fs': {
+    closeSync: function () { return undefined },
+    openSync: function (path) {
+      if (readableFiles.some(function (f) { return f === path })) {
+        return 0
+      } else {
+        var error = new Error('ENOENT - not found')
+        throw error
+      }
+    }
+  }
+})
+
+const dir = path.sep + 'testdir'
+const readableFile = 'readable_file'
+const anotherReadableFile = 'another_readable_file'
+const readableFileInDir = 'somedir' + path.sep + readableFile
+const readableFiles = [
+  path.resolve(dir, readableFile),
+  path.resolve(dir, anotherReadableFile),
+  path.resolve(dir, readableFileInDir)
+]
+
+test('find accessible - empty array', function (t) {
+  t.plan(1)
+
+  var candidates = []
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, undefined)
+})
+
+test('find accessible - single item array, readable', function (t) {
+  t.plan(1)
+
+  var candidates = [readableFile]
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, path.resolve(dir, readableFile))
+})
+
+test('find accessible - single item array, readable in subdir', function (t) {
+  t.plan(1)
+
+  var candidates = [readableFileInDir]
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, path.resolve(dir, readableFileInDir))
+})
+
+test('find accessible - single item array, unreadable', function (t) {
+  t.plan(1)
+
+  var candidates = ['unreadable_file']
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, undefined)
+})
+
+test('find accessible - multi item array, no matches', function (t) {
+  t.plan(1)
+
+  var candidates = ['non_existent_file', 'unreadable_file']
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, undefined)
+})
+
+test('find accessible - multi item array, single match', function (t) {
+  t.plan(1)
+
+  var candidates = ['non_existent_file', readableFile]
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, path.resolve(dir, readableFile))
+})
+
+test('find accessible - multi item array, return first match', function (t) {
+  t.plan(1)
+
+  var candidates = ['non_existent_file', anotherReadableFile, readableFile]
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, path.resolve(dir, anotherReadableFile))
+})
diff --git a/node_modules/node-gyp/test/test-find-node-directory.js b/node_modules/node-gyp/test/test-find-node-directory.js
new file mode 100644
index 0000000..f1380d1
--- /dev/null
+++ b/node_modules/node-gyp/test/test-find-node-directory.js
@@ -0,0 +1,119 @@
+'use strict'
+
+const test = require('tap').test
+const path = require('path')
+const findNodeDirectory = require('../lib/find-node-directory')
+
+const platforms = ['darwin', 'freebsd', 'linux', 'sunos', 'win32', 'aix']
+
+// we should find the directory based on the directory
+// the script is running in and it should match the layout
+// in a build tree where npm is installed in
+// .... /deps/npm
+test('test find-node-directory - node install', function (t) {
+  t.plan(platforms.length)
+  for (var next = 0; next < platforms.length; next++) {
+    var processObj = { execPath: '/x/y/bin/node', platform: platforms[next] }
+    t.equal(
+      findNodeDirectory('/x/deps/npm/node_modules/node-gyp/lib', processObj),
+      path.join('/x'))
+  }
+})
+
+// we should find the directory based on the directory
+// the script is running in and it should match the layout
+// in an installed tree where npm is installed in
+// .... /lib/node_modules/npm or .../node_modules/npm
+// depending on the patform
+test('test find-node-directory - node build', function (t) {
+  t.plan(platforms.length)
+  for (var next = 0; next < platforms.length; next++) {
+    var processObj = { execPath: '/x/y/bin/node', platform: platforms[next] }
+    if (platforms[next] === 'win32') {
+      t.equal(
+        findNodeDirectory('/y/node_modules/npm/node_modules/node-gyp/lib',
+          processObj), path.join('/y'))
+    } else {
+      t.equal(
+        findNodeDirectory('/y/lib/node_modules/npm/node_modules/node-gyp/lib',
+          processObj), path.join('/y'))
+    }
+  }
+})
+
+// we should find the directory based on the execPath
+// for node and match because it was in the bin directory
+test('test find-node-directory - node in bin directory', function (t) {
+  t.plan(platforms.length)
+  for (var next = 0; next < platforms.length; next++) {
+    var processObj = { execPath: '/x/y/bin/node', platform: platforms[next] }
+    t.equal(
+      findNodeDirectory('/nothere/npm/node_modules/node-gyp/lib', processObj),
+      path.join('/x/y'))
+  }
+})
+
+// we should find the directory based on the execPath
+// for node and match because it was in the Release directory
+test('test find-node-directory - node in build release dir', function (t) {
+  t.plan(platforms.length)
+  for (var next = 0; next < platforms.length; next++) {
+    var processObj
+    if (platforms[next] === 'win32') {
+      processObj = { execPath: '/x/y/Release/node', platform: platforms[next] }
+    } else {
+      processObj = {
+        execPath: '/x/y/out/Release/node',
+        platform: platforms[next]
+      }
+    }
+
+    t.equal(
+      findNodeDirectory('/nothere/npm/node_modules/node-gyp/lib', processObj),
+      path.join('/x/y'))
+  }
+})
+
+// we should find the directory based on the execPath
+// for node and match because it was in the Debug directory
+test('test find-node-directory - node in Debug release dir', function (t) {
+  t.plan(platforms.length)
+  for (var next = 0; next < platforms.length; next++) {
+    var processObj
+    if (platforms[next] === 'win32') {
+      processObj = { execPath: '/a/b/Debug/node', platform: platforms[next] }
+    } else {
+      processObj = { execPath: '/a/b/out/Debug/node', platform: platforms[next] }
+    }
+
+    t.equal(
+      findNodeDirectory('/nothere/npm/node_modules/node-gyp/lib', processObj),
+      path.join('/a/b'))
+  }
+})
+
+// we should not find it as it will not match based on the execPath nor
+// the directory from which the script is running
+test('test find-node-directory - not found', function (t) {
+  t.plan(platforms.length)
+  for (var next = 0; next < platforms.length; next++) {
+    var processObj = { execPath: '/x/y/z/y', platform: next }
+    t.equal(findNodeDirectory('/a/b/c/d', processObj), '')
+  }
+})
+
+// we should find the directory based on the directory
+// the script is running in and it should match the layout
+// in a build tree where npm is installed in
+// .... /deps/npm
+// same test as above but make sure additional directory entries
+// don't cause an issue
+test('test find-node-directory - node install', function (t) {
+  t.plan(platforms.length)
+  for (var next = 0; next < platforms.length; next++) {
+    var processObj = { execPath: '/x/y/bin/node', platform: platforms[next] }
+    t.equal(
+      findNodeDirectory('/x/y/z/a/b/c/deps/npm/node_modules/node-gyp/lib',
+        processObj), path.join('/x/y/z/a/b/c'))
+  }
+})
diff --git a/node_modules/node-gyp/test/test-find-python.js b/node_modules/node-gyp/test/test-find-python.js
new file mode 100644
index 0000000..67d0b26
--- /dev/null
+++ b/node_modules/node-gyp/test/test-find-python.js
@@ -0,0 +1,226 @@
+'use strict'
+
+delete process.env.PYTHON
+
+const test = require('tap').test
+const findPython = require('../lib/find-python')
+const execFile = require('child_process').execFile
+const PythonFinder = findPython.test.PythonFinder
+
+require('npmlog').level = 'warn'
+
+test('find python', function (t) {
+  t.plan(4)
+
+  findPython.test.findPython(null, function (err, found) {
+    t.strictEqual(err, null)
+    var proc = execFile(found, ['-V'], function (err, stdout, stderr) {
+      t.strictEqual(err, null)
+      t.ok(/Python 3/.test(stdout))
+      t.strictEqual(stderr, '')
+    })
+    proc.stdout.setEncoding('utf-8')
+    proc.stderr.setEncoding('utf-8')
+  })
+})
+
+function poison (object, property) {
+  function fail () {
+    console.error(Error(`Property ${property} should not have been accessed.`))
+    process.abort()
+  }
+  var descriptor = {
+    configurable: false,
+    enumerable: false,
+    get: fail,
+    set: fail
+  }
+  Object.defineProperty(object, property, descriptor)
+}
+
+function TestPythonFinder () {
+  PythonFinder.apply(this, arguments)
+}
+TestPythonFinder.prototype = Object.create(PythonFinder.prototype)
+// Silence npmlog - remove for debugging
+TestPythonFinder.prototype.log = {
+  silly: () => {},
+  verbose: () => {},
+  info: () => {},
+  warn: () => {},
+  error: () => {}
+}
+delete TestPythonFinder.prototype.env.NODE_GYP_FORCE_PYTHON
+
+test('find python - python', function (t) {
+  t.plan(6)
+
+  var f = new TestPythonFinder('python', done)
+  f.execFile = function (program, args, opts, cb) {
+    f.execFile = function (program, args, opts, cb) {
+      poison(f, 'execFile')
+      t.strictEqual(program, '/path/python')
+      t.ok(/sys\.version_info/.test(args[1]))
+      cb(null, '3.9.1')
+    }
+    t.strictEqual(program,
+      process.platform === 'win32' ? '"python"' : 'python')
+    t.ok(/sys\.executable/.test(args[1]))
+    cb(null, '/path/python')
+  }
+  f.findPython()
+
+  function done (err, python) {
+    t.strictEqual(err, null)
+    t.strictEqual(python, '/path/python')
+  }
+})
+
+test('find python - python too old', function (t) {
+  t.plan(2)
+
+  var f = new TestPythonFinder(null, done)
+  f.execFile = function (program, args, opts, cb) {
+    if (/sys\.executable/.test(args[args.length - 1])) {
+      cb(null, '/path/python')
+    } else if (/sys\.version_info/.test(args[args.length - 1])) {
+      cb(null, '2.3.4')
+    } else {
+      t.fail()
+    }
+  }
+  f.findPython()
+
+  function done (err) {
+    t.ok(/Could not find any Python/.test(err))
+    t.ok(/not supported/i.test(f.errorLog))
+  }
+})
+
+test('find python - no python', function (t) {
+  t.plan(2)
+
+  var f = new TestPythonFinder(null, done)
+  f.execFile = function (program, args, opts, cb) {
+    if (/sys\.executable/.test(args[args.length - 1])) {
+      cb(new Error('not found'))
+    } else if (/sys\.version_info/.test(args[args.length - 1])) {
+      cb(new Error('not a Python executable'))
+    } else {
+      t.fail()
+    }
+  }
+  f.findPython()
+
+  function done (err) {
+    t.ok(/Could not find any Python/.test(err))
+    t.ok(/not in PATH/.test(f.errorLog))
+  }
+})
+
+test('find python - no python2, no python, unix', function (t) {
+  t.plan(2)
+
+  var f = new TestPythonFinder(null, done)
+  f.checkPyLauncher = t.fail
+  f.win = false
+
+  f.execFile = function (program, args, opts, cb) {
+    if (/sys\.executable/.test(args[args.length - 1])) {
+      cb(new Error('not found'))
+    } else {
+      t.fail()
+    }
+  }
+  f.findPython()
+
+  function done (err) {
+    t.ok(/Could not find any Python/.test(err))
+    t.ok(/not in PATH/.test(f.errorLog))
+  }
+})
+
+test('find python - no python, use python launcher', function (t) {
+  t.plan(4)
+
+  var f = new TestPythonFinder(null, done)
+  f.win = true
+
+  f.execFile = function (program, args, opts, cb) {
+    if (program === 'py.exe') {
+      t.notEqual(args.indexOf('-3'), -1)
+      t.notEqual(args.indexOf('-c'), -1)
+      return cb(null, 'Z:\\snake.exe')
+    }
+    if (/sys\.executable/.test(args[args.length - 1])) {
+      cb(new Error('not found'))
+    } else if (f.winDefaultLocations.includes(program)) {
+      cb(new Error('not found'))
+    } else if (/sys\.version_info/.test(args[args.length - 1])) {
+      if (program === 'Z:\\snake.exe') {
+        cb(null, '3.9.0')
+      } else {
+        t.fail()
+      }
+    } else {
+      t.fail()
+    }
+  }
+  f.findPython()
+
+  function done (err, python) {
+    t.strictEqual(err, null)
+    t.strictEqual(python, 'Z:\\snake.exe')
+  }
+})
+
+test('find python - no python, no python launcher, good guess', function (t) {
+  t.plan(2)
+
+  var f = new TestPythonFinder(null, done)
+  f.win = true
+  const expectedProgram = f.winDefaultLocations[0]
+
+  f.execFile = function (program, args, opts, cb) {
+    if (program === 'py.exe') {
+      return cb(new Error('not found'))
+    }
+    if (/sys\.executable/.test(args[args.length - 1])) {
+      cb(new Error('not found'))
+    } else if (program === expectedProgram &&
+               /sys\.version_info/.test(args[args.length - 1])) {
+      cb(null, '3.7.3')
+    } else {
+      t.fail()
+    }
+  }
+  f.findPython()
+
+  function done (err, python) {
+    t.strictEqual(err, null)
+    t.ok(python === expectedProgram)
+  }
+})
+
+test('find python - no python, no python launcher, bad guess', function (t) {
+  t.plan(2)
+
+  var f = new TestPythonFinder(null, done)
+  f.win = true
+
+  f.execFile = function (program, args, opts, cb) {
+    if (/sys\.executable/.test(args[args.length - 1])) {
+      cb(new Error('not found'))
+    } else if (/sys\.version_info/.test(args[args.length - 1])) {
+      cb(new Error('not a Python executable'))
+    } else {
+      t.fail()
+    }
+  }
+  f.findPython()
+
+  function done (err) {
+    t.ok(/Could not find any Python/.test(err))
+    t.ok(/not in PATH/.test(f.errorLog))
+  }
+})
diff --git a/node_modules/node-gyp/test/test-find-visualstudio.js b/node_modules/node-gyp/test/test-find-visualstudio.js
new file mode 100644
index 0000000..1327cf8
--- /dev/null
+++ b/node_modules/node-gyp/test/test-find-visualstudio.js
@@ -0,0 +1,676 @@
+'use strict'
+
+const test = require('tap').test
+const fs = require('fs')
+const path = require('path')
+const findVisualStudio = require('../lib/find-visualstudio')
+const VisualStudioFinder = findVisualStudio.test.VisualStudioFinder
+
+const semverV1 = { major: 1, minor: 0, patch: 0 }
+
+delete process.env.VCINSTALLDIR
+
+function poison (object, property) {
+  function fail () {
+    console.error(Error(`Property ${property} should not have been accessed.`))
+    process.abort()
+  }
+  var descriptor = {
+    configurable: false,
+    enumerable: false,
+    get: fail,
+    set: fail
+  }
+  Object.defineProperty(object, property, descriptor)
+}
+
+function TestVisualStudioFinder () { VisualStudioFinder.apply(this, arguments) }
+TestVisualStudioFinder.prototype = Object.create(VisualStudioFinder.prototype)
+// Silence npmlog - remove for debugging
+TestVisualStudioFinder.prototype.log = {
+  silly: () => {},
+  verbose: () => {},
+  info: () => {},
+  warn: () => {},
+  error: () => {}
+}
+
+test('VS2013', function (t) {
+  t.plan(4)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info, {
+      msBuild: 'C:\\MSBuild12\\MSBuild.exe',
+      path: 'C:\\VS2013',
+      sdk: null,
+      toolset: 'v120',
+      version: '12.0',
+      versionMajor: 12,
+      versionMinor: 0,
+      versionYear: 2013
+    })
+  })
+
+  finder.findVisualStudio2017OrNewer = (cb) => {
+    finder.parseData(new Error(), '', '', cb)
+  }
+  finder.regSearchKeys = (keys, value, addOpts, cb) => {
+    for (var i = 0; i < keys.length; ++i) {
+      const fullName = `${keys[i]}\\${value}`
+      switch (fullName) {
+        case 'HKLM\\Software\\Microsoft\\VisualStudio\\SxS\\VC7\\14.0':
+        case 'HKLM\\Software\\Wow6432Node\\Microsoft\\VisualStudio\\SxS\\VC7\\14.0':
+          continue
+        case 'HKLM\\Software\\Microsoft\\VisualStudio\\SxS\\VC7\\12.0':
+          t.pass(`expected search for registry value ${fullName}`)
+          return cb(null, 'C:\\VS2013\\VC\\')
+        case 'HKLM\\Software\\Microsoft\\MSBuild\\ToolsVersions\\12.0\\MSBuildToolsPath':
+          t.pass(`expected search for registry value ${fullName}`)
+          return cb(null, 'C:\\MSBuild12\\')
+        default:
+          t.fail(`unexpected search for registry value ${fullName}`)
+      }
+    }
+    return cb(new Error())
+  }
+  finder.findVisualStudio()
+})
+
+test('VS2013 should not be found on new node versions', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder({
+    major: 10,
+    minor: 0,
+    patch: 0
+  }, null, (err, info) => {
+    t.ok(/find .* Visual Studio/i.test(err), 'expect error')
+    t.false(info, 'no data')
+  })
+
+  finder.findVisualStudio2017OrNewer = (cb) => {
+    const file = path.join(__dirname, 'fixtures', 'VS_2017_Unusable.txt')
+    const data = fs.readFileSync(file)
+    finder.parseData(null, data, '', cb)
+  }
+  finder.regSearchKeys = (keys, value, addOpts, cb) => {
+    for (var i = 0; i < keys.length; ++i) {
+      const fullName = `${keys[i]}\\${value}`
+      switch (fullName) {
+        case 'HKLM\\Software\\Microsoft\\VisualStudio\\SxS\\VC7\\14.0':
+        case 'HKLM\\Software\\Wow6432Node\\Microsoft\\VisualStudio\\SxS\\VC7\\14.0':
+          continue
+        default:
+          t.fail(`unexpected search for registry value ${fullName}`)
+      }
+    }
+    return cb(new Error())
+  }
+  finder.findVisualStudio()
+})
+
+test('VS2015', function (t) {
+  t.plan(4)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info, {
+      msBuild: 'C:\\MSBuild14\\MSBuild.exe',
+      path: 'C:\\VS2015',
+      sdk: null,
+      toolset: 'v140',
+      version: '14.0',
+      versionMajor: 14,
+      versionMinor: 0,
+      versionYear: 2015
+    })
+  })
+
+  finder.findVisualStudio2017OrNewer = (cb) => {
+    finder.parseData(new Error(), '', '', cb)
+  }
+  finder.regSearchKeys = (keys, value, addOpts, cb) => {
+    for (var i = 0; i < keys.length; ++i) {
+      const fullName = `${keys[i]}\\${value}`
+      switch (fullName) {
+        case 'HKLM\\Software\\Microsoft\\VisualStudio\\SxS\\VC7\\14.0':
+          t.pass(`expected search for registry value ${fullName}`)
+          return cb(null, 'C:\\VS2015\\VC\\')
+        case 'HKLM\\Software\\Microsoft\\MSBuild\\ToolsVersions\\14.0\\MSBuildToolsPath':
+          t.pass(`expected search for registry value ${fullName}`)
+          return cb(null, 'C:\\MSBuild14\\')
+        default:
+          t.fail(`unexpected search for registry value ${fullName}`)
+      }
+    }
+    return cb(new Error())
+  }
+  finder.findVisualStudio()
+})
+
+test('error from PowerShell', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, null)
+
+  finder.parseData(new Error(), '', '', (info) => {
+    t.ok(/use PowerShell/i.test(finder.errorLog[0]), 'expect error')
+    t.false(info, 'no data')
+  })
+})
+
+test('empty output from PowerShell', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, null)
+
+  finder.parseData(null, '', '', (info) => {
+    t.ok(/use PowerShell/i.test(finder.errorLog[0]), 'expect error')
+    t.false(info, 'no data')
+  })
+})
+
+test('output from PowerShell not JSON', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, null)
+
+  finder.parseData(null, 'AAAABBBB', '', (info) => {
+    t.ok(/use PowerShell/i.test(finder.errorLog[0]), 'expect error')
+    t.false(info, 'no data')
+  })
+})
+
+test('wrong JSON from PowerShell', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, null)
+
+  finder.parseData(null, '{}', '', (info) => {
+    t.ok(/use PowerShell/i.test(finder.errorLog[0]), 'expect error')
+    t.false(info, 'no data')
+  })
+})
+
+test('empty JSON from PowerShell', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, null)
+
+  finder.parseData(null, '[]', '', (info) => {
+    t.ok(/find .* Visual Studio/i.test(finder.errorLog[0]), 'expect error')
+    t.false(info, 'no data')
+  })
+})
+
+test('future version', function (t) {
+  t.plan(3)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, null)
+
+  finder.parseData(null, JSON.stringify([{
+    packages: [
+      'Microsoft.VisualStudio.Component.VC.Tools.x86.x64',
+      'Microsoft.VisualStudio.Component.Windows10SDK.17763',
+      'Microsoft.VisualStudio.VC.MSBuild.Base'
+    ],
+    path: 'C:\\VS',
+    version: '9999.9999.9999.9999'
+  }]), '', (info) => {
+    t.ok(/unknown version/i.test(finder.errorLog[0]), 'expect error')
+    t.ok(/find .* Visual Studio/i.test(finder.errorLog[1]), 'expect error')
+    t.false(info, 'no data')
+  })
+})
+
+test('single unusable VS2017', function (t) {
+  t.plan(3)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, null)
+
+  const file = path.join(__dirname, 'fixtures', 'VS_2017_Unusable.txt')
+  const data = fs.readFileSync(file)
+  finder.parseData(null, data, '', (info) => {
+    t.ok(/checking/i.test(finder.errorLog[0]), 'expect error')
+    t.ok(/find .* Visual Studio/i.test(finder.errorLog[2]), 'expect error')
+    t.false(info, 'no data')
+  })
+})
+
+test('minimal VS2017 Build Tools', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info, {
+      msBuild: 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\' +
+        'BuildTools\\MSBuild\\15.0\\Bin\\MSBuild.exe',
+      path:
+        'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\BuildTools',
+      sdk: '10.0.17134.0',
+      toolset: 'v141',
+      version: '15.9.28307.665',
+      versionMajor: 15,
+      versionMinor: 9,
+      versionYear: 2017
+    })
+  })
+
+  poison(finder, 'regSearchKeys')
+  finder.findVisualStudio2017OrNewer = (cb) => {
+    const file = path.join(__dirname, 'fixtures',
+      'VS_2017_BuildTools_minimal.txt')
+    const data = fs.readFileSync(file)
+    finder.parseData(null, data, '', cb)
+  }
+  finder.findVisualStudio()
+})
+
+test('VS2017 Community with C++ workload', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info, {
+      msBuild: 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\' +
+        'Community\\MSBuild\\15.0\\Bin\\MSBuild.exe',
+      path:
+        'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\Community',
+      sdk: '10.0.17763.0',
+      toolset: 'v141',
+      version: '15.9.28307.665',
+      versionMajor: 15,
+      versionMinor: 9,
+      versionYear: 2017
+    })
+  })
+
+  poison(finder, 'regSearchKeys')
+  finder.findVisualStudio2017OrNewer = (cb) => {
+    const file = path.join(__dirname, 'fixtures',
+      'VS_2017_Community_workload.txt')
+    const data = fs.readFileSync(file)
+    finder.parseData(null, data, '', cb)
+  }
+  finder.findVisualStudio()
+})
+
+test('VS2017 Express', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info, {
+      msBuild: 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\' +
+        'WDExpress\\MSBuild\\15.0\\Bin\\MSBuild.exe',
+      path:
+        'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\WDExpress',
+      sdk: '10.0.17763.0',
+      toolset: 'v141',
+      version: '15.9.28307.858',
+      versionMajor: 15,
+      versionMinor: 9,
+      versionYear: 2017
+    })
+  })
+
+  poison(finder, 'regSearchKeys')
+  finder.findVisualStudio2017OrNewer = (cb) => {
+    const file = path.join(__dirname, 'fixtures', 'VS_2017_Express.txt')
+    const data = fs.readFileSync(file)
+    finder.parseData(null, data, '', cb)
+  }
+  finder.findVisualStudio()
+})
+
+test('VS2019 Preview with C++ workload', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info, {
+      msBuild: 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\' +
+        'Preview\\MSBuild\\Current\\Bin\\MSBuild.exe',
+      path:
+        'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Preview',
+      sdk: '10.0.17763.0',
+      toolset: 'v142',
+      version: '16.0.28608.199',
+      versionMajor: 16,
+      versionMinor: 0,
+      versionYear: 2019
+    })
+  })
+
+  poison(finder, 'regSearchKeys')
+  finder.findVisualStudio2017OrNewer = (cb) => {
+    const file = path.join(__dirname, 'fixtures',
+      'VS_2019_Preview.txt')
+    const data = fs.readFileSync(file)
+    finder.parseData(null, data, '', cb)
+  }
+  finder.findVisualStudio()
+})
+
+test('minimal VS2019 Build Tools', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info, {
+      msBuild: 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\' +
+        'BuildTools\\MSBuild\\Current\\Bin\\MSBuild.exe',
+      path:
+        'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools',
+      sdk: '10.0.17134.0',
+      toolset: 'v142',
+      version: '16.1.28922.388',
+      versionMajor: 16,
+      versionMinor: 1,
+      versionYear: 2019
+    })
+  })
+
+  poison(finder, 'regSearchKeys')
+  finder.findVisualStudio2017OrNewer = (cb) => {
+    const file = path.join(__dirname, 'fixtures',
+      'VS_2019_BuildTools_minimal.txt')
+    const data = fs.readFileSync(file)
+    finder.parseData(null, data, '', cb)
+  }
+  finder.findVisualStudio()
+})
+
+test('VS2019 Community with C++ workload', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info, {
+      msBuild: 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\' +
+        'Community\\MSBuild\\Current\\Bin\\MSBuild.exe',
+      path:
+        'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community',
+      sdk: '10.0.17763.0',
+      toolset: 'v142',
+      version: '16.1.28922.388',
+      versionMajor: 16,
+      versionMinor: 1,
+      versionYear: 2019
+    })
+  })
+
+  poison(finder, 'regSearchKeys')
+  finder.findVisualStudio2017OrNewer = (cb) => {
+    const file = path.join(__dirname, 'fixtures',
+      'VS_2019_Community_workload.txt')
+    const data = fs.readFileSync(file)
+    finder.parseData(null, data, '', cb)
+  }
+  finder.findVisualStudio()
+})
+
+function allVsVersions (t, finder) {
+  finder.findVisualStudio2017OrNewer = (cb) => {
+    const data0 = JSON.parse(fs.readFileSync(path.join(__dirname, 'fixtures',
+      'VS_2017_Unusable.txt')))
+    const data1 = JSON.parse(fs.readFileSync(path.join(__dirname, 'fixtures',
+      'VS_2017_BuildTools_minimal.txt')))
+    const data2 = JSON.parse(fs.readFileSync(path.join(__dirname, 'fixtures',
+      'VS_2017_Community_workload.txt')))
+    const data3 = JSON.parse(fs.readFileSync(path.join(__dirname, 'fixtures',
+      'VS_2017_Express.txt')))
+    const data4 = JSON.parse(fs.readFileSync(path.join(__dirname, 'fixtures',
+      'VS_2019_Preview.txt')))
+    const data5 = JSON.parse(fs.readFileSync(path.join(__dirname, 'fixtures',
+      'VS_2019_BuildTools_minimal.txt')))
+    const data6 = JSON.parse(fs.readFileSync(path.join(__dirname, 'fixtures',
+      'VS_2019_Community_workload.txt')))
+    const data = JSON.stringify(data0.concat(data1, data2, data3, data4,
+      data5, data6))
+    finder.parseData(null, data, '', cb)
+  }
+  finder.regSearchKeys = (keys, value, addOpts, cb) => {
+    for (var i = 0; i < keys.length; ++i) {
+      const fullName = `${keys[i]}\\${value}`
+      switch (fullName) {
+        case 'HKLM\\Software\\Microsoft\\VisualStudio\\SxS\\VC7\\14.0':
+        case 'HKLM\\Software\\Microsoft\\VisualStudio\\SxS\\VC7\\12.0':
+          continue
+        case 'HKLM\\Software\\Wow6432Node\\Microsoft\\VisualStudio\\SxS\\VC7\\12.0':
+          return cb(null, 'C:\\VS2013\\VC\\')
+        case 'HKLM\\Software\\Microsoft\\MSBuild\\ToolsVersions\\12.0\\MSBuildToolsPath':
+          return cb(null, 'C:\\MSBuild12\\')
+        case 'HKLM\\Software\\Wow6432Node\\Microsoft\\VisualStudio\\SxS\\VC7\\14.0':
+          return cb(null, 'C:\\VS2015\\VC\\')
+        case 'HKLM\\Software\\Microsoft\\MSBuild\\ToolsVersions\\14.0\\MSBuildToolsPath':
+          return cb(null, 'C:\\MSBuild14\\')
+        default:
+          t.fail(`unexpected search for registry value ${fullName}`)
+      }
+    }
+    return cb(new Error())
+  }
+}
+
+test('fail when looking for invalid path', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, 'AABB', (err, info) => {
+    t.ok(/find .* Visual Studio/i.test(err), 'expect error')
+    t.false(info, 'no data')
+  })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('look for VS2013 by version number', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, '2013', (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info.versionYear, 2013)
+  })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('look for VS2013 by installation path', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, 'C:\\VS2013',
+    (err, info) => {
+      t.strictEqual(err, null)
+      t.deepEqual(info.path, 'C:\\VS2013')
+    })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('look for VS2015 by version number', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, '2015', (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info.versionYear, 2015)
+  })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('look for VS2015 by installation path', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, 'C:\\VS2015',
+    (err, info) => {
+      t.strictEqual(err, null)
+      t.deepEqual(info.path, 'C:\\VS2015')
+    })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('look for VS2017 by version number', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, '2017', (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info.versionYear, 2017)
+  })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('look for VS2017 by installation path', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1,
+    'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\Community',
+    (err, info) => {
+      t.strictEqual(err, null)
+      t.deepEqual(info.path,
+        'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\Community')
+    })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('look for VS2019 by version number', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, '2019', (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info.versionYear, 2019)
+  })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('look for VS2019 by installation path', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1,
+    'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools',
+    (err, info) => {
+      t.strictEqual(err, null)
+      t.deepEqual(info.path,
+        'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools')
+    })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('msvs_version match should be case insensitive', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1,
+    'c:\\program files (x86)\\microsoft visual studio\\2019\\BUILDTOOLS',
+    (err, info) => {
+      t.strictEqual(err, null)
+      t.deepEqual(info.path,
+        'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools')
+    })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('latest version should be found by default', function (t) {
+  t.plan(2)
+
+  const finder = new TestVisualStudioFinder(semverV1, null, (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info.versionYear, 2019)
+  })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('run on a usable VS Command Prompt', function (t) {
+  t.plan(2)
+
+  process.env.VCINSTALLDIR = 'C:\\VS2015\\VC'
+  // VSINSTALLDIR is not defined on Visual C++ Build Tools 2015
+  delete process.env.VSINSTALLDIR
+
+  const finder = new TestVisualStudioFinder(semverV1, null, (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info.path, 'C:\\VS2015')
+  })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('VCINSTALLDIR match should be case insensitive', function (t) {
+  t.plan(2)
+
+  process.env.VCINSTALLDIR =
+    'c:\\program files (x86)\\microsoft visual studio\\2019\\BUILDTOOLS\\VC'
+
+  const finder = new TestVisualStudioFinder(semverV1, null, (err, info) => {
+    t.strictEqual(err, null)
+    t.deepEqual(info.path,
+      'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools')
+  })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('run on a unusable VS Command Prompt', function (t) {
+  t.plan(2)
+
+  process.env.VCINSTALLDIR =
+    'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildToolsUnusable\\VC'
+
+  const finder = new TestVisualStudioFinder(semverV1, null, (err, info) => {
+    t.ok(/find .* Visual Studio/i.test(err), 'expect error')
+    t.false(info, 'no data')
+  })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('run on a VS Command Prompt with matching msvs_version', function (t) {
+  t.plan(2)
+
+  process.env.VCINSTALLDIR = 'C:\\VS2015\\VC'
+
+  const finder = new TestVisualStudioFinder(semverV1, 'C:\\VS2015',
+    (err, info) => {
+      t.strictEqual(err, null)
+      t.deepEqual(info.path, 'C:\\VS2015')
+    })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
+
+test('run on a VS Command Prompt with mismatched msvs_version', function (t) {
+  t.plan(2)
+
+  process.env.VCINSTALLDIR =
+    'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools\\VC'
+
+  const finder = new TestVisualStudioFinder(semverV1, 'C:\\VS2015',
+    (err, info) => {
+      t.ok(/find .* Visual Studio/i.test(err), 'expect error')
+      t.false(info, 'no data')
+    })
+
+  allVsVersions(t, finder)
+  finder.findVisualStudio()
+})
diff --git a/node_modules/node-gyp/test/test-install.js b/node_modules/node-gyp/test/test-install.js
new file mode 100644
index 0000000..5039dc9
--- /dev/null
+++ b/node_modules/node-gyp/test/test-install.js
@@ -0,0 +1,46 @@
+'use strict'
+
+const { test } = require('tap')
+const { test: { install } } = require('../lib/install')
+const log = require('npmlog')
+
+log.level = 'error' // we expect a warning
+
+test('EACCES retry once', async (t) => {
+  t.plan(3)
+
+  const fs = {
+    promises: {
+      stat (_) {
+        const err = new Error()
+        err.code = 'EACCES'
+        t.ok(true)
+        throw err
+      }
+    }
+  }
+
+  const Gyp = {
+    devDir: __dirname,
+    opts: {
+      ensure: true
+    },
+    commands: {
+      install (argv, cb) {
+        install(fs, Gyp, argv).then(cb, cb)
+      },
+      remove (_, cb) {
+        cb()
+      }
+    }
+  }
+
+  try {
+    await install(fs, Gyp, [])
+  } catch (err) {
+    t.ok(true)
+    if (/"pre" versions of node cannot be installed/.test(err.message)) {
+      t.ok(true)
+    }
+  }
+})
diff --git a/node_modules/node-gyp/test/test-options.js b/node_modules/node-gyp/test/test-options.js
new file mode 100644
index 0000000..b2ac62c
--- /dev/null
+++ b/node_modules/node-gyp/test/test-options.js
@@ -0,0 +1,31 @@
+'use strict'
+
+const test = require('tap').test
+const gyp = require('../lib/node-gyp')
+
+test('options in environment', (t) => {
+  t.plan(1)
+
+  // `npm test` dumps a ton of npm_config_* variables in the environment.
+  Object.keys(process.env)
+    .filter((key) => /^npm_config_/.test(key))
+    .forEach((key) => { delete process.env[key] })
+
+  // in some platforms, certain keys are stubborn and cannot be removed
+  const keys = Object.keys(process.env)
+    .filter((key) => /^npm_config_/.test(key))
+    .map((key) => key.substring('npm_config_'.length))
+    .concat('argv', 'x')
+
+  // Zero-length keys should get filtered out.
+  process.env.npm_config_ = '42'
+  // Other keys should get added.
+  process.env.npm_config_x = '42'
+  // Except loglevel.
+  process.env.npm_config_loglevel = 'debug'
+
+  const g = gyp()
+  g.parseArgv(['rebuild']) // Also sets opts.argv.
+
+  t.deepEqual(Object.keys(g.opts).sort(), keys.sort())
+})
diff --git a/node_modules/node-gyp/test/test-process-release.js b/node_modules/node-gyp/test/test-process-release.js
new file mode 100644
index 0000000..c3ee070
--- /dev/null
+++ b/node_modules/node-gyp/test/test-process-release.js
@@ -0,0 +1,434 @@
+'use strict'
+
+const test = require('tap').test
+const processRelease = require('../lib/process-release')
+
+test('test process release - process.version = 0.8.20', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: {} }, 'v0.8.20', null)
+
+  t.equal(release.semver.version, '0.8.20')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '0.8.20',
+    name: 'node',
+    baseUrl: 'https://nodejs.org/dist/v0.8.20/',
+    tarballUrl: 'https://nodejs.org/dist/v0.8.20/node-v0.8.20.tar.gz',
+    shasumsUrl: 'https://nodejs.org/dist/v0.8.20/SHASUMS256.txt',
+    versionDir: '0.8.20',
+    ia32: { libUrl: 'https://nodejs.org/dist/v0.8.20/node.lib', libPath: 'node.lib' },
+    x64: { libUrl: 'https://nodejs.org/dist/v0.8.20/x64/node.lib', libPath: 'x64/node.lib' },
+    arm64: { libUrl: 'https://nodejs.org/dist/v0.8.20/arm64/node.lib', libPath: 'arm64/node.lib' }
+  })
+})
+
+test('test process release - process.version = 0.10.21', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: {} }, 'v0.10.21', null)
+
+  t.equal(release.semver.version, '0.10.21')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '0.10.21',
+    name: 'node',
+    baseUrl: 'https://nodejs.org/dist/v0.10.21/',
+    tarballUrl: 'https://nodejs.org/dist/v0.10.21/node-v0.10.21.tar.gz',
+    shasumsUrl: 'https://nodejs.org/dist/v0.10.21/SHASUMS256.txt',
+    versionDir: '0.10.21',
+    ia32: { libUrl: 'https://nodejs.org/dist/v0.10.21/node.lib', libPath: 'node.lib' },
+    x64: { libUrl: 'https://nodejs.org/dist/v0.10.21/x64/node.lib', libPath: 'x64/node.lib' },
+    arm64: { libUrl: 'https://nodejs.org/dist/v0.10.21/arm64/node.lib', libPath: 'arm64/node.lib' }
+  })
+})
+
+// prior to -headers.tar.gz
+test('test process release - process.version = 0.12.9', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: {} }, 'v0.12.9', null)
+
+  t.equal(release.semver.version, '0.12.9')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '0.12.9',
+    name: 'node',
+    baseUrl: 'https://nodejs.org/dist/v0.12.9/',
+    tarballUrl: 'https://nodejs.org/dist/v0.12.9/node-v0.12.9.tar.gz',
+    shasumsUrl: 'https://nodejs.org/dist/v0.12.9/SHASUMS256.txt',
+    versionDir: '0.12.9',
+    ia32: { libUrl: 'https://nodejs.org/dist/v0.12.9/node.lib', libPath: 'node.lib' },
+    x64: { libUrl: 'https://nodejs.org/dist/v0.12.9/x64/node.lib', libPath: 'x64/node.lib' },
+    arm64: { libUrl: 'https://nodejs.org/dist/v0.12.9/arm64/node.lib', libPath: 'arm64/node.lib' }
+  })
+})
+
+// prior to -headers.tar.gz
+test('test process release - process.version = 0.10.41', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: {} }, 'v0.10.41', null)
+
+  t.equal(release.semver.version, '0.10.41')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '0.10.41',
+    name: 'node',
+    baseUrl: 'https://nodejs.org/dist/v0.10.41/',
+    tarballUrl: 'https://nodejs.org/dist/v0.10.41/node-v0.10.41.tar.gz',
+    shasumsUrl: 'https://nodejs.org/dist/v0.10.41/SHASUMS256.txt',
+    versionDir: '0.10.41',
+    ia32: { libUrl: 'https://nodejs.org/dist/v0.10.41/node.lib', libPath: 'node.lib' },
+    x64: { libUrl: 'https://nodejs.org/dist/v0.10.41/x64/node.lib', libPath: 'x64/node.lib' },
+    arm64: { libUrl: 'https://nodejs.org/dist/v0.10.41/arm64/node.lib', libPath: 'arm64/node.lib' }
+  })
+})
+
+// has -headers.tar.gz
+test('test process release - process.release ~ node@0.10.42', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: {} }, 'v0.10.42', null)
+
+  t.equal(release.semver.version, '0.10.42')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '0.10.42',
+    name: 'node',
+    baseUrl: 'https://nodejs.org/dist/v0.10.42/',
+    tarballUrl: 'https://nodejs.org/dist/v0.10.42/node-v0.10.42-headers.tar.gz',
+    shasumsUrl: 'https://nodejs.org/dist/v0.10.42/SHASUMS256.txt',
+    versionDir: '0.10.42',
+    ia32: { libUrl: 'https://nodejs.org/dist/v0.10.42/node.lib', libPath: 'node.lib' },
+    x64: { libUrl: 'https://nodejs.org/dist/v0.10.42/x64/node.lib', libPath: 'x64/node.lib' },
+    arm64: { libUrl: 'https://nodejs.org/dist/v0.10.42/arm64/node.lib', libPath: 'arm64/node.lib' }
+  })
+})
+
+// has -headers.tar.gz
+test('test process release - process.release ~ node@0.12.10', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: {} }, 'v0.12.10', null)
+
+  t.equal(release.semver.version, '0.12.10')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '0.12.10',
+    name: 'node',
+    baseUrl: 'https://nodejs.org/dist/v0.12.10/',
+    tarballUrl: 'https://nodejs.org/dist/v0.12.10/node-v0.12.10-headers.tar.gz',
+    shasumsUrl: 'https://nodejs.org/dist/v0.12.10/SHASUMS256.txt',
+    versionDir: '0.12.10',
+    ia32: { libUrl: 'https://nodejs.org/dist/v0.12.10/node.lib', libPath: 'node.lib' },
+    x64: { libUrl: 'https://nodejs.org/dist/v0.12.10/x64/node.lib', libPath: 'x64/node.lib' },
+    arm64: { libUrl: 'https://nodejs.org/dist/v0.12.10/arm64/node.lib', libPath: 'arm64/node.lib' }
+  })
+})
+
+test('test process release - process.release ~ node@4.1.23', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: {} }, 'v4.1.23', {
+    name: 'node',
+    headersUrl: 'https://nodejs.org/dist/v4.1.23/node-v4.1.23-headers.tar.gz'
+  })
+
+  t.equal(release.semver.version, '4.1.23')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '4.1.23',
+    name: 'node',
+    baseUrl: 'https://nodejs.org/dist/v4.1.23/',
+    tarballUrl: 'https://nodejs.org/dist/v4.1.23/node-v4.1.23-headers.tar.gz',
+    shasumsUrl: 'https://nodejs.org/dist/v4.1.23/SHASUMS256.txt',
+    versionDir: '4.1.23',
+    ia32: { libUrl: 'https://nodejs.org/dist/v4.1.23/win-x86/node.lib', libPath: 'win-x86/node.lib' },
+    x64: { libUrl: 'https://nodejs.org/dist/v4.1.23/win-x64/node.lib', libPath: 'win-x64/node.lib' },
+    arm64: { libUrl: 'https://nodejs.org/dist/v4.1.23/win-arm64/node.lib', libPath: 'win-arm64/node.lib' }
+  })
+})
+
+test('test process release - process.release ~ node@4.1.23 / corp build', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: {} }, 'v4.1.23', {
+    name: 'node',
+    headersUrl: 'https://some.custom.location/node-v4.1.23-headers.tar.gz'
+  })
+
+  t.equal(release.semver.version, '4.1.23')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '4.1.23',
+    name: 'node',
+    baseUrl: 'https://some.custom.location/',
+    tarballUrl: 'https://some.custom.location/node-v4.1.23-headers.tar.gz',
+    shasumsUrl: 'https://some.custom.location/SHASUMS256.txt',
+    versionDir: '4.1.23',
+    ia32: { libUrl: 'https://some.custom.location/win-x86/node.lib', libPath: 'win-x86/node.lib' },
+    x64: { libUrl: 'https://some.custom.location/win-x64/node.lib', libPath: 'win-x64/node.lib' },
+    arm64: { libUrl: 'https://some.custom.location/win-arm64/node.lib', libPath: 'win-arm64/node.lib' }
+  })
+})
+
+test('test process release - process.release ~ node@12.8.0 Windows', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: {} }, 'v12.8.0', {
+    name: 'node',
+    sourceUrl: 'https://nodejs.org/download/release/v12.8.0/node-v12.8.0.tar.gz',
+    headersUrl: 'https://nodejs.org/download/release/v12.8.0/node-v12.8.0-headers.tar.gz',
+    libUrl: 'https://nodejs.org/download/release/v12.8.0/win-x64/node.lib'
+  })
+
+  t.equal(release.semver.version, '12.8.0')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '12.8.0',
+    name: 'node',
+    baseUrl: 'https://nodejs.org/download/release/v12.8.0/',
+    tarballUrl: 'https://nodejs.org/download/release/v12.8.0/node-v12.8.0-headers.tar.gz',
+    shasumsUrl: 'https://nodejs.org/download/release/v12.8.0/SHASUMS256.txt',
+    versionDir: '12.8.0',
+    ia32: { libUrl: 'https://nodejs.org/download/release/v12.8.0/win-x86/node.lib', libPath: 'win-x86/node.lib' },
+    x64: { libUrl: 'https://nodejs.org/download/release/v12.8.0/win-x64/node.lib', libPath: 'win-x64/node.lib' },
+    arm64: { libUrl: 'https://nodejs.org/download/release/v12.8.0/win-arm64/node.lib', libPath: 'win-arm64/node.lib' }
+  })
+})
+
+test('test process release - process.release ~ node@12.8.0 Windows ARM64', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: {} }, 'v12.8.0', {
+    name: 'node',
+    sourceUrl: 'https://unofficial-builds.nodejs.org/download/release/v12.8.0/node-v12.8.0.tar.gz',
+    headersUrl: 'https://unofficial-builds.nodejs.org/download/release/v12.8.0/node-v12.8.0-headers.tar.gz',
+    libUrl: 'https://unofficial-builds.nodejs.org/download/release/v12.8.0/win-arm64/node.lib'
+  })
+
+  t.equal(release.semver.version, '12.8.0')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '12.8.0',
+    name: 'node',
+    baseUrl: 'https://unofficial-builds.nodejs.org/download/release/v12.8.0/',
+    tarballUrl: 'https://unofficial-builds.nodejs.org/download/release/v12.8.0/node-v12.8.0-headers.tar.gz',
+    shasumsUrl: 'https://unofficial-builds.nodejs.org/download/release/v12.8.0/SHASUMS256.txt',
+    versionDir: '12.8.0',
+    ia32: { libUrl: 'https://unofficial-builds.nodejs.org/download/release/v12.8.0/win-x86/node.lib', libPath: 'win-x86/node.lib' },
+    x64: { libUrl: 'https://unofficial-builds.nodejs.org/download/release/v12.8.0/win-x64/node.lib', libPath: 'win-x64/node.lib' },
+    arm64: { libUrl: 'https://unofficial-builds.nodejs.org/download/release/v12.8.0/win-arm64/node.lib', libPath: 'win-arm64/node.lib' }
+  })
+})
+
+test('test process release - process.release ~ node@4.1.23 --target=0.10.40', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: { target: '0.10.40' } }, 'v4.1.23', {
+    name: 'node',
+    headersUrl: 'https://nodejs.org/dist/v4.1.23/node-v4.1.23-headers.tar.gz'
+  })
+
+  t.equal(release.semver.version, '0.10.40')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '0.10.40',
+    name: 'node',
+    baseUrl: 'https://nodejs.org/dist/v0.10.40/',
+    tarballUrl: 'https://nodejs.org/dist/v0.10.40/node-v0.10.40.tar.gz',
+    shasumsUrl: 'https://nodejs.org/dist/v0.10.40/SHASUMS256.txt',
+    versionDir: '0.10.40',
+    ia32: { libUrl: 'https://nodejs.org/dist/v0.10.40/node.lib', libPath: 'node.lib' },
+    x64: { libUrl: 'https://nodejs.org/dist/v0.10.40/x64/node.lib', libPath: 'x64/node.lib' },
+    arm64: { libUrl: 'https://nodejs.org/dist/v0.10.40/arm64/node.lib', libPath: 'arm64/node.lib' }
+  })
+})
+
+test('test process release - process.release ~ node@4.1.23 --dist-url=https://foo.bar/baz', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: { 'dist-url': 'https://foo.bar/baz' } }, 'v4.1.23', {
+    name: 'node',
+    headersUrl: 'https://nodejs.org/dist/v4.1.23/node-v4.1.23-headers.tar.gz'
+  })
+
+  t.equal(release.semver.version, '4.1.23')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '4.1.23',
+    name: 'node',
+    baseUrl: 'https://foo.bar/baz/v4.1.23/',
+    tarballUrl: 'https://foo.bar/baz/v4.1.23/node-v4.1.23-headers.tar.gz',
+    shasumsUrl: 'https://foo.bar/baz/v4.1.23/SHASUMS256.txt',
+    versionDir: '4.1.23',
+    ia32: { libUrl: 'https://foo.bar/baz/v4.1.23/win-x86/node.lib', libPath: 'win-x86/node.lib' },
+    x64: { libUrl: 'https://foo.bar/baz/v4.1.23/win-x64/node.lib', libPath: 'win-x64/node.lib' },
+    arm64: { libUrl: 'https://foo.bar/baz/v4.1.23/win-arm64/node.lib', libPath: 'win-arm64/node.lib' }
+  })
+})
+
+test('test process release - process.release ~ frankenstein@4.1.23', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: {} }, 'v4.1.23', {
+    name: 'frankenstein',
+    headersUrl: 'https://frankensteinjs.org/dist/v4.1.23/frankenstein-v4.1.23-headers.tar.gz'
+  })
+
+  t.equal(release.semver.version, '4.1.23')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '4.1.23',
+    name: 'frankenstein',
+    baseUrl: 'https://frankensteinjs.org/dist/v4.1.23/',
+    tarballUrl: 'https://frankensteinjs.org/dist/v4.1.23/frankenstein-v4.1.23-headers.tar.gz',
+    shasumsUrl: 'https://frankensteinjs.org/dist/v4.1.23/SHASUMS256.txt',
+    versionDir: 'frankenstein-4.1.23',
+    ia32: { libUrl: 'https://frankensteinjs.org/dist/v4.1.23/win-x86/frankenstein.lib', libPath: 'win-x86/frankenstein.lib' },
+    x64: { libUrl: 'https://frankensteinjs.org/dist/v4.1.23/win-x64/frankenstein.lib', libPath: 'win-x64/frankenstein.lib' },
+    arm64: { libUrl: 'https://frankensteinjs.org/dist/v4.1.23/win-arm64/frankenstein.lib', libPath: 'win-arm64/frankenstein.lib' }
+  })
+})
+
+test('test process release - process.release ~ frankenstein@4.1.23 --dist-url=http://foo.bar/baz/', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: { 'dist-url': 'http://foo.bar/baz/' } }, 'v4.1.23', {
+    name: 'frankenstein',
+    headersUrl: 'https://frankensteinjs.org/dist/v4.1.23/frankenstein-v4.1.23.tar.gz'
+  })
+
+  t.equal(release.semver.version, '4.1.23')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '4.1.23',
+    name: 'frankenstein',
+    baseUrl: 'http://foo.bar/baz/v4.1.23/',
+    tarballUrl: 'http://foo.bar/baz/v4.1.23/frankenstein-v4.1.23-headers.tar.gz',
+    shasumsUrl: 'http://foo.bar/baz/v4.1.23/SHASUMS256.txt',
+    versionDir: 'frankenstein-4.1.23',
+    ia32: { libUrl: 'http://foo.bar/baz/v4.1.23/win-x86/frankenstein.lib', libPath: 'win-x86/frankenstein.lib' },
+    x64: { libUrl: 'http://foo.bar/baz/v4.1.23/win-x64/frankenstein.lib', libPath: 'win-x64/frankenstein.lib' },
+    arm64: { libUrl: 'http://foo.bar/baz/v4.1.23/win-arm64/frankenstein.lib', libPath: 'win-arm64/frankenstein.lib' }
+  })
+})
+
+test('test process release - process.release ~ node@4.0.0-rc.4', function (t) {
+  t.plan(2)
+
+  var release = processRelease([], { opts: {} }, 'v4.0.0-rc.4', {
+    name: 'node',
+    headersUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/node-v4.0.0-rc.4-headers.tar.gz'
+  })
+
+  t.equal(release.semver.version, '4.0.0-rc.4')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '4.0.0-rc.4',
+    name: 'node',
+    baseUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/',
+    tarballUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/node-v4.0.0-rc.4-headers.tar.gz',
+    shasumsUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/SHASUMS256.txt',
+    versionDir: '4.0.0-rc.4',
+    ia32: { libUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/win-x86/node.lib', libPath: 'win-x86/node.lib' },
+    x64: { libUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/win-x64/node.lib', libPath: 'win-x64/node.lib' },
+    arm64: { libUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/win-arm64/node.lib', libPath: 'win-arm64/node.lib' }
+  })
+})
+
+test('test process release - process.release ~ node@4.0.0-rc.4 passed as argv[0]', function (t) {
+  t.plan(2)
+
+  // note the missing 'v' on the arg, it should normalise when checking
+  // whether we're on the default or not
+  var release = processRelease(['4.0.0-rc.4'], { opts: {} }, 'v4.0.0-rc.4', {
+    name: 'node',
+    headersUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/node-v4.0.0-rc.4-headers.tar.gz'
+  })
+
+  t.equal(release.semver.version, '4.0.0-rc.4')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '4.0.0-rc.4',
+    name: 'node',
+    baseUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/',
+    tarballUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/node-v4.0.0-rc.4-headers.tar.gz',
+    shasumsUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/SHASUMS256.txt',
+    versionDir: '4.0.0-rc.4',
+    ia32: { libUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/win-x86/node.lib', libPath: 'win-x86/node.lib' },
+    x64: { libUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/win-x64/node.lib', libPath: 'win-x64/node.lib' },
+    arm64: { libUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/win-arm64/node.lib', libPath: 'win-arm64/node.lib' }
+  })
+})
+
+test('test process release - process.release ~ node@4.0.0-rc.4 - bogus string passed as argv[0]', function (t) {
+  t.plan(2)
+
+  // additional arguments can be passed in on the commandline that should be ignored if they
+  // are not specifying a valid version @ position 0
+  var release = processRelease(['this is no version!'], { opts: {} }, 'v4.0.0-rc.4', {
+    name: 'node',
+    headersUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/node-v4.0.0-rc.4-headers.tar.gz'
+  })
+
+  t.equal(release.semver.version, '4.0.0-rc.4')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '4.0.0-rc.4',
+    name: 'node',
+    baseUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/',
+    tarballUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/node-v4.0.0-rc.4-headers.tar.gz',
+    shasumsUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/SHASUMS256.txt',
+    versionDir: '4.0.0-rc.4',
+    ia32: { libUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/win-x86/node.lib', libPath: 'win-x86/node.lib' },
+    x64: { libUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/win-x64/node.lib', libPath: 'win-x64/node.lib' },
+    arm64: { libUrl: 'https://nodejs.org/download/rc/v4.0.0-rc.4/win-arm64/node.lib', libPath: 'win-arm64/node.lib' }
+  })
+})
+
+test('test process release - NODEJS_ORG_MIRROR', function (t) {
+  t.plan(2)
+
+  process.env.NODEJS_ORG_MIRROR = 'http://foo.bar'
+
+  var release = processRelease([], { opts: {} }, 'v4.1.23', {
+    name: 'node',
+    headersUrl: 'https://nodejs.org/dist/v4.1.23/node-v4.1.23-headers.tar.gz'
+  })
+
+  t.equal(release.semver.version, '4.1.23')
+  delete release.semver
+
+  t.deepEqual(release, {
+    version: '4.1.23',
+    name: 'node',
+    baseUrl: 'http://foo.bar/v4.1.23/',
+    tarballUrl: 'http://foo.bar/v4.1.23/node-v4.1.23-headers.tar.gz',
+    shasumsUrl: 'http://foo.bar/v4.1.23/SHASUMS256.txt',
+    versionDir: '4.1.23',
+    ia32: { libUrl: 'http://foo.bar/v4.1.23/win-x86/node.lib', libPath: 'win-x86/node.lib' },
+    x64: { libUrl: 'http://foo.bar/v4.1.23/win-x64/node.lib', libPath: 'win-x64/node.lib' },
+    arm64: { libUrl: 'http://foo.bar/v4.1.23/win-arm64/node.lib', libPath: 'win-arm64/node.lib' }
+  })
+
+  delete process.env.NODEJS_ORG_MIRROR
+})
diff --git a/node_modules/node-gyp/update-gyp.py b/node_modules/node-gyp/update-gyp.py
new file mode 100644
index 0000000..bb84f07
--- /dev/null
+++ b/node_modules/node-gyp/update-gyp.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+
+import argparse
+import os
+import shutil
+import subprocess
+import tarfile
+import tempfile
+import urllib.request
+
+BASE_URL = "https://github.com/nodejs/gyp-next/archive/"
+CHECKOUT_PATH = os.path.dirname(os.path.realpath(__file__))
+CHECKOUT_GYP_PATH = os.path.join(CHECKOUT_PATH, "gyp")
+
+parser = argparse.ArgumentParser()
+parser.add_argument("tag", help="gyp tag to update to")
+args = parser.parse_args()
+
+tar_url = BASE_URL + args.tag + ".tar.gz"
+
+changed_files = subprocess.check_output(["git", "diff", "--name-only"]).strip()
+if changed_files:
+    raise Exception("Can't update gyp while you have uncommitted changes in node-gyp")
+
+with tempfile.TemporaryDirectory() as tmp_dir:
+    tar_file = os.path.join(tmp_dir, "gyp.tar.gz")
+    unzip_target = os.path.join(tmp_dir, "gyp")
+    with open(tar_file, "wb") as f:
+        print("Downloading gyp-next@" + args.tag + " into temporary directory...")
+        print("From: " + tar_url)
+        with urllib.request.urlopen(tar_url) as in_file:
+            f.write(in_file.read())
+
+        print("Unzipping...")
+        with tarfile.open(tar_file, "r:gz") as tar_ref:
+            tar_ref.extractall(unzip_target)
+
+        print("Moving to current checkout (" + CHECKOUT_PATH + ")...")
+        if os.path.exists(CHECKOUT_GYP_PATH):
+            shutil.rmtree(CHECKOUT_GYP_PATH)
+        shutil.move(
+            os.path.join(unzip_target, os.listdir(unzip_target)[0]), CHECKOUT_GYP_PATH
+        )
+
+subprocess.check_output(["git", "add", "gyp"], cwd=CHECKOUT_PATH)
+subprocess.check_output(["git", "commit", "-m", "feat(gyp): update gyp to " + args.tag])
diff --git a/node_modules/nopt/CHANGELOG.md b/node_modules/nopt/CHANGELOG.md
new file mode 100644
index 0000000..82a09fb
--- /dev/null
+++ b/node_modules/nopt/CHANGELOG.md
@@ -0,0 +1,58 @@
+### v4.0.1 (2016-12-14)
+
+#### WHOOPS
+
+* [`fb9b1ce`](https://github.com/npm/nopt/commit/fb9b1ce57b3c69b4f7819015be87719204f77ef6)
+  Merged so many patches at once that the code fencing
+  ([@adius](https://github.com/adius)) added got broken. Sorry,
+  ([@adius](https://github.com/adius))!
+  ([@othiym23](https://github.com/othiym23))
+
+### v4.0.0 (2016-12-13)
+
+#### BREAKING CHANGES
+
+* [`651d447`](https://github.com/npm/nopt/commit/651d4473946096d341a480bbe56793de3fc706aa)
+  When parsing String-typed arguments, if the next value is `""`, don't simply
+  swallow it. ([@samjonester](https://github.com/samjonester))
+
+#### PERFORMANCE TWEAKS
+
+* [`3370ce8`](https://github.com/npm/nopt/commit/3370ce87a7618ba228883861db84ddbcdff252a9)
+  Simplify initialization. ([@elidoran](https://github.com/elidoran))
+* [`356e58e`](https://github.com/npm/nopt/commit/356e58e3b3b431a4b1af7fd7bdee44c2c0526a09)
+  Store `Array.isArray(types[arg])` for reuse.
+  ([@elidoran](https://github.com/elidoran))
+* [`0d95e90`](https://github.com/npm/nopt/commit/0d95e90515844f266015b56d2c80b94e5d14a07e)
+  Interpret single-item type arrays as a single type.
+  ([@samjonester](https://github.com/samjonester))
+* [`07c69d3`](https://github.com/npm/nopt/commit/07c69d38b5186450941fbb505550becb78a0e925)
+  Simplify key-value extraction. ([@elidoran](https://github.com/elidoran))
+* [`39b6e5c`](https://github.com/npm/nopt/commit/39b6e5c65ac47f60cd43a1fbeece5cd4c834c254)
+  Only call `Date.parse(val)` once. ([@elidoran](https://github.com/elidoran))
+* [`934943d`](https://github.com/npm/nopt/commit/934943dffecb55123a2b15959fe2a359319a5dbd)
+  Use `osenv.home()` to find a user's home directory instead of assuming it's
+  always `$HOME`. ([@othiym23](https://github.com/othiym23))
+
+#### TEST & CI IMPROVEMENTS
+
+* [`326ffff`](https://github.com/npm/nopt/commit/326ffff7f78a00bcd316adecf69075f8a8093619)
+  Fix `/tmp` test to work on Windows.
+  ([@elidoran](https://github.com/elidoran))
+* [`c89d31a`](https://github.com/npm/nopt/commit/c89d31a49d14f2238bc6672db08da697bbc57f1b)
+  Only run Windows tests on Windows, only run Unix tests on a Unix.
+  ([@elidoran](https://github.com/elidoran))
+* [`affd3d1`](https://github.com/npm/nopt/commit/affd3d1d0addffa93006397b2013b18447339366)
+  Refresh Travis to run the tests against the currently-supported batch of npm
+  versions. ([@helio](https://github.com/helio)-frota)
+* [`55f9449`](https://github.com/npm/nopt/commit/55f94497d163ed4d16dd55fd6c4fb95cc440e66d)
+  `tap@8.0.1` ([@othiym23](https://github.com/othiym23))
+
+#### DOC TWEAKS
+
+* [`5271229`](https://github.com/npm/nopt/commit/5271229ee7c810217dd51616c086f5d9ab224581)
+  Use JavaScript code block for syntax highlighting.
+  ([@adius](https://github.com/adius))
+* [`c0d156f`](https://github.com/npm/nopt/commit/c0d156f229f9994c5dfcec4a8886eceff7a07682)
+  The code sample in the README had `many2: [ oneThing ]`, and now it has
+  `many2: [ two, things ]`. ([@silkentrance](https://github.com/silkentrance))
diff --git a/node_modules/nopt/LICENSE b/node_modules/nopt/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/nopt/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/nopt/README.md b/node_modules/nopt/README.md
new file mode 100644
index 0000000..a99531c
--- /dev/null
+++ b/node_modules/nopt/README.md
@@ -0,0 +1,213 @@
+If you want to write an option parser, and have it be good, there are
+two ways to do it.  The Right Way, and the Wrong Way.
+
+The Wrong Way is to sit down and write an option parser.  We've all done
+that.
+
+The Right Way is to write some complex configurable program with so many
+options that you hit the limit of your frustration just trying to
+manage them all, and defer it with duct-tape solutions until you see
+exactly to the core of the problem, and finally snap and write an
+awesome option parser.
+
+If you want to write an option parser, don't write an option parser.
+Write a package manager, or a source control system, or a service
+restarter, or an operating system.  You probably won't end up with a
+good one of those, but if you don't give up, and you are relentless and
+diligent enough in your procrastination, you may just end up with a very
+nice option parser.
+
+## USAGE
+
+```javascript
+// my-program.js
+var nopt = require("nopt")
+  , Stream = require("stream").Stream
+  , path = require("path")
+  , knownOpts = { "foo" : [String, null]
+                , "bar" : [Stream, Number]
+                , "baz" : path
+                , "bloo" : [ "big", "medium", "small" ]
+                , "flag" : Boolean
+                , "pick" : Boolean
+                , "many1" : [String, Array]
+                , "many2" : [path, Array]
+                }
+  , shortHands = { "foofoo" : ["--foo", "Mr. Foo"]
+                 , "b7" : ["--bar", "7"]
+                 , "m" : ["--bloo", "medium"]
+                 , "p" : ["--pick"]
+                 , "f" : ["--flag"]
+                 }
+             // everything is optional.
+             // knownOpts and shorthands default to {}
+             // arg list defaults to process.argv
+             // slice defaults to 2
+  , parsed = nopt(knownOpts, shortHands, process.argv, 2)
+console.log(parsed)
+```
+
+This would give you support for any of the following:
+
+```console
+$ node my-program.js --foo "blerp" --no-flag
+{ "foo" : "blerp", "flag" : false }
+
+$ node my-program.js ---bar 7 --foo "Mr. Hand" --flag
+{ bar: 7, foo: "Mr. Hand", flag: true }
+
+$ node my-program.js --foo "blerp" -f -----p
+{ foo: "blerp", flag: true, pick: true }
+
+$ node my-program.js -fp --foofoo
+{ foo: "Mr. Foo", flag: true, pick: true }
+
+$ node my-program.js --foofoo -- -fp  # -- stops the flag parsing.
+{ foo: "Mr. Foo", argv: { remain: ["-fp"] } }
+
+$ node my-program.js --blatzk -fp # unknown opts are ok.
+{ blatzk: true, flag: true, pick: true }
+
+$ node my-program.js --blatzk=1000 -fp # but you need to use = if they have a value
+{ blatzk: 1000, flag: true, pick: true }
+
+$ node my-program.js --no-blatzk -fp # unless they start with "no-"
+{ blatzk: false, flag: true, pick: true }
+
+$ node my-program.js --baz b/a/z # known paths are resolved.
+{ baz: "/Users/isaacs/b/a/z" }
+
+# if Array is one of the types, then it can take many
+# values, and will always be an array.  The other types provided
+# specify what types are allowed in the list.
+
+$ node my-program.js --many1 5 --many1 null --many1 foo
+{ many1: ["5", "null", "foo"] }
+
+$ node my-program.js --many2 foo --many2 bar
+{ many2: ["/path/to/foo", "path/to/bar"] }
+```
+
+Read the tests at the bottom of `lib/nopt.js` for more examples of
+what this puppy can do.
+
+## Types
+
+The following types are supported, and defined on `nopt.typeDefs`
+
+* String: A normal string.  No parsing is done.
+* path: A file system path.  Gets resolved against cwd if not absolute.
+* url: A url.  If it doesn't parse, it isn't accepted.
+* Number: Must be numeric.
+* Date: Must parse as a date. If it does, and `Date` is one of the options,
+  then it will return a Date object, not a string.
+* Boolean: Must be either `true` or `false`.  If an option is a boolean,
+  then it does not need a value, and its presence will imply `true` as
+  the value.  To negate boolean flags, do `--no-whatever` or `--whatever
+  false`
+* NaN: Means that the option is strictly not allowed.  Any value will
+  fail.
+* Stream: An object matching the "Stream" class in node.  Valuable
+  for use when validating programmatically.  (npm uses this to let you
+  supply any WriteStream on the `outfd` and `logfd` config options.)
+* Array: If `Array` is specified as one of the types, then the value
+  will be parsed as a list of options.  This means that multiple values
+  can be specified, and that the value will always be an array.
+
+If a type is an array of values not on this list, then those are
+considered valid values.  For instance, in the example above, the
+`--bloo` option can only be one of `"big"`, `"medium"`, or `"small"`,
+and any other value will be rejected.
+
+When parsing unknown fields, `"true"`, `"false"`, and `"null"` will be
+interpreted as their JavaScript equivalents.
+
+You can also mix types and values, or multiple types, in a list.  For
+instance `{ blah: [Number, null] }` would allow a value to be set to
+either a Number or null.  When types are ordered, this implies a
+preference, and the first type that can be used to properly interpret
+the value will be used.
+
+To define a new type, add it to `nopt.typeDefs`.  Each item in that
+hash is an object with a `type` member and a `validate` method.  The
+`type` member is an object that matches what goes in the type list.  The
+`validate` method is a function that gets called with `validate(data,
+key, val)`.  Validate methods should assign `data[key]` to the valid
+value of `val` if it can be handled properly, or return boolean
+`false` if it cannot.
+
+You can also call `nopt.clean(data, types, typeDefs)` to clean up a
+config object and remove its invalid properties.
+
+## Error Handling
+
+By default, nopt outputs a warning to standard error when invalid values for
+known options are found.  You can change this behavior by assigning a method
+to `nopt.invalidHandler`.  This method will be called with
+the offending `nopt.invalidHandler(key, val, types)`.
+
+If no `nopt.invalidHandler` is assigned, then it will console.error
+its whining.  If it is assigned to boolean `false` then the warning is
+suppressed.
+
+## Abbreviations
+
+Yes, they are supported.  If you define options like this:
+
+```javascript
+{ "foolhardyelephants" : Boolean
+, "pileofmonkeys" : Boolean }
+```
+
+Then this will work:
+
+```bash
+node program.js --foolhar --pil
+node program.js --no-f --pileofmon
+# etc.
+```
+
+## Shorthands
+
+Shorthands are a hash of shorter option names to a snippet of args that
+they expand to.
+
+If multiple one-character shorthands are all combined, and the
+combination does not unambiguously match any other option or shorthand,
+then they will be broken up into their constituent parts.  For example:
+
+```json
+{ "s" : ["--loglevel", "silent"]
+, "g" : "--global"
+, "f" : "--force"
+, "p" : "--parseable"
+, "l" : "--long"
+}
+```
+
+```bash
+npm ls -sgflp
+# just like doing this:
+npm ls --loglevel silent --global --force --long --parseable
+```
+
+## The Rest of the args
+
+The config object returned by nopt is given a special member called
+`argv`, which is an object with the following fields:
+
+* `remain`: The remaining args after all the parsing has occurred.
+* `original`: The args as they originally appeared.
+* `cooked`: The args after flags and shorthands are expanded.
+
+## Slicing
+
+Node programs are called with more or less the exact argv as it appears
+in C land, after the v8 and node-specific options have been plucked off.
+As such, `argv[0]` is always `node` and `argv[1]` is always the
+JavaScript program being run.
+
+That's usually not very useful to you.  So they're sliced off by
+default.  If you want them, then you can pass in `0` as the last
+argument, or any other number that you'd like to slice off the start of
+the list.
diff --git a/node_modules/nopt/bin/nopt.js b/node_modules/nopt/bin/nopt.js
new file mode 100644
index 0000000..3232d4c
--- /dev/null
+++ b/node_modules/nopt/bin/nopt.js
@@ -0,0 +1,54 @@
+#!/usr/bin/env node
+var nopt = require("../lib/nopt")
+  , path = require("path")
+  , types = { num: Number
+            , bool: Boolean
+            , help: Boolean
+            , list: Array
+            , "num-list": [Number, Array]
+            , "str-list": [String, Array]
+            , "bool-list": [Boolean, Array]
+            , str: String
+            , clear: Boolean
+            , config: Boolean
+            , length: Number
+            , file: path
+            }
+  , shorthands = { s: [ "--str", "astring" ]
+                 , b: [ "--bool" ]
+                 , nb: [ "--no-bool" ]
+                 , tft: [ "--bool-list", "--no-bool-list", "--bool-list", "true" ]
+                 , "?": ["--help"]
+                 , h: ["--help"]
+                 , H: ["--help"]
+                 , n: [ "--num", "125" ]
+                 , c: ["--config"]
+                 , l: ["--length"]
+                 , f: ["--file"]
+                 }
+  , parsed = nopt( types
+                 , shorthands
+                 , process.argv
+                 , 2 )
+
+console.log("parsed", parsed)
+
+if (parsed.help) {
+  console.log("")
+  console.log("nopt cli tester")
+  console.log("")
+  console.log("types")
+  console.log(Object.keys(types).map(function M (t) {
+    var type = types[t]
+    if (Array.isArray(type)) {
+      return [t, type.map(function (type) { return type.name })]
+    }
+    return [t, type && type.name]
+  }).reduce(function (s, i) {
+    s[i[0]] = i[1]
+    return s
+  }, {}))
+  console.log("")
+  console.log("shorthands")
+  console.log(shorthands)
+}
diff --git a/node_modules/nopt/lib/nopt.js b/node_modules/nopt/lib/nopt.js
new file mode 100644
index 0000000..ecfa5da
--- /dev/null
+++ b/node_modules/nopt/lib/nopt.js
@@ -0,0 +1,441 @@
+// info about each config option.
+
+var debug = process.env.DEBUG_NOPT || process.env.NOPT_DEBUG
+  ? function () { console.error.apply(console, arguments) }
+  : function () {}
+
+var url = require("url")
+  , path = require("path")
+  , Stream = require("stream").Stream
+  , abbrev = require("abbrev")
+  , os = require("os")
+
+module.exports = exports = nopt
+exports.clean = clean
+
+exports.typeDefs =
+  { String  : { type: String,  validate: validateString  }
+  , Boolean : { type: Boolean, validate: validateBoolean }
+  , url     : { type: url,     validate: validateUrl     }
+  , Number  : { type: Number,  validate: validateNumber  }
+  , path    : { type: path,    validate: validatePath    }
+  , Stream  : { type: Stream,  validate: validateStream  }
+  , Date    : { type: Date,    validate: validateDate    }
+  }
+
+function nopt (types, shorthands, args, slice) {
+  args = args || process.argv
+  types = types || {}
+  shorthands = shorthands || {}
+  if (typeof slice !== "number") slice = 2
+
+  debug(types, shorthands, args, slice)
+
+  args = args.slice(slice)
+  var data = {}
+    , key
+    , argv = {
+        remain: [],
+        cooked: args,
+        original: args.slice(0)
+      }
+
+  parse(args, data, argv.remain, types, shorthands)
+  // now data is full
+  clean(data, types, exports.typeDefs)
+  data.argv = argv
+  Object.defineProperty(data.argv, 'toString', { value: function () {
+    return this.original.map(JSON.stringify).join(" ")
+  }, enumerable: false })
+  return data
+}
+
+function clean (data, types, typeDefs) {
+  typeDefs = typeDefs || exports.typeDefs
+  var remove = {}
+    , typeDefault = [false, true, null, String, Array]
+
+  Object.keys(data).forEach(function (k) {
+    if (k === "argv") return
+    var val = data[k]
+      , isArray = Array.isArray(val)
+      , type = types[k]
+    if (!isArray) val = [val]
+    if (!type) type = typeDefault
+    if (type === Array) type = typeDefault.concat(Array)
+    if (!Array.isArray(type)) type = [type]
+
+    debug("val=%j", val)
+    debug("types=", type)
+    val = val.map(function (val) {
+      // if it's an unknown value, then parse false/true/null/numbers/dates
+      if (typeof val === "string") {
+        debug("string %j", val)
+        val = val.trim()
+        if ((val === "null" && ~type.indexOf(null))
+            || (val === "true" &&
+               (~type.indexOf(true) || ~type.indexOf(Boolean)))
+            || (val === "false" &&
+               (~type.indexOf(false) || ~type.indexOf(Boolean)))) {
+          val = JSON.parse(val)
+          debug("jsonable %j", val)
+        } else if (~type.indexOf(Number) && !isNaN(val)) {
+          debug("convert to number", val)
+          val = +val
+        } else if (~type.indexOf(Date) && !isNaN(Date.parse(val))) {
+          debug("convert to date", val)
+          val = new Date(val)
+        }
+      }
+
+      if (!types.hasOwnProperty(k)) {
+        return val
+      }
+
+      // allow `--no-blah` to set 'blah' to null if null is allowed
+      if (val === false && ~type.indexOf(null) &&
+          !(~type.indexOf(false) || ~type.indexOf(Boolean))) {
+        val = null
+      }
+
+      var d = {}
+      d[k] = val
+      debug("prevalidated val", d, val, types[k])
+      if (!validate(d, k, val, types[k], typeDefs)) {
+        if (exports.invalidHandler) {
+          exports.invalidHandler(k, val, types[k], data)
+        } else if (exports.invalidHandler !== false) {
+          debug("invalid: "+k+"="+val, types[k])
+        }
+        return remove
+      }
+      debug("validated val", d, val, types[k])
+      return d[k]
+    }).filter(function (val) { return val !== remove })
+
+    // if we allow Array specifically, then an empty array is how we
+    // express 'no value here', not null.  Allow it.
+    if (!val.length && type.indexOf(Array) === -1) {
+      debug('VAL HAS NO LENGTH, DELETE IT', val, k, type.indexOf(Array))
+      delete data[k]
+    }
+    else if (isArray) {
+      debug(isArray, data[k], val)
+      data[k] = val
+    } else data[k] = val[0]
+
+    debug("k=%s val=%j", k, val, data[k])
+  })
+}
+
+function validateString (data, k, val) {
+  data[k] = String(val)
+}
+
+function validatePath (data, k, val) {
+  if (val === true) return false
+  if (val === null) return true
+
+  val = String(val)
+
+  var isWin       = process.platform === 'win32'
+    , homePattern = isWin ? /^~(\/|\\)/ : /^~\//
+    , home        = os.homedir()
+
+  if (home && val.match(homePattern)) {
+    data[k] = path.resolve(home, val.substr(2))
+  } else {
+    data[k] = path.resolve(val)
+  }
+  return true
+}
+
+function validateNumber (data, k, val) {
+  debug("validate Number %j %j %j", k, val, isNaN(val))
+  if (isNaN(val)) return false
+  data[k] = +val
+}
+
+function validateDate (data, k, val) {
+  var s = Date.parse(val)
+  debug("validate Date %j %j %j", k, val, s)
+  if (isNaN(s)) return false
+  data[k] = new Date(val)
+}
+
+function validateBoolean (data, k, val) {
+  if (val instanceof Boolean) val = val.valueOf()
+  else if (typeof val === "string") {
+    if (!isNaN(val)) val = !!(+val)
+    else if (val === "null" || val === "false") val = false
+    else val = true
+  } else val = !!val
+  data[k] = val
+}
+
+function validateUrl (data, k, val) {
+  val = url.parse(String(val))
+  if (!val.host) return false
+  data[k] = val.href
+}
+
+function validateStream (data, k, val) {
+  if (!(val instanceof Stream)) return false
+  data[k] = val
+}
+
+function validate (data, k, val, type, typeDefs) {
+  // arrays are lists of types.
+  if (Array.isArray(type)) {
+    for (var i = 0, l = type.length; i < l; i ++) {
+      if (type[i] === Array) continue
+      if (validate(data, k, val, type[i], typeDefs)) return true
+    }
+    delete data[k]
+    return false
+  }
+
+  // an array of anything?
+  if (type === Array) return true
+
+  // NaN is poisonous.  Means that something is not allowed.
+  if (type !== type) {
+    debug("Poison NaN", k, val, type)
+    delete data[k]
+    return false
+  }
+
+  // explicit list of values
+  if (val === type) {
+    debug("Explicitly allowed %j", val)
+    // if (isArray) (data[k] = data[k] || []).push(val)
+    // else data[k] = val
+    data[k] = val
+    return true
+  }
+
+  // now go through the list of typeDefs, validate against each one.
+  var ok = false
+    , types = Object.keys(typeDefs)
+  for (var i = 0, l = types.length; i < l; i ++) {
+    debug("test type %j %j %j", k, val, types[i])
+    var t = typeDefs[types[i]]
+    if (t &&
+      ((type && type.name && t.type && t.type.name) ? (type.name === t.type.name) : (type === t.type))) {
+      var d = {}
+      ok = false !== t.validate(d, k, val)
+      val = d[k]
+      if (ok) {
+        // if (isArray) (data[k] = data[k] || []).push(val)
+        // else data[k] = val
+        data[k] = val
+        break
+      }
+    }
+  }
+  debug("OK? %j (%j %j %j)", ok, k, val, types[i])
+
+  if (!ok) delete data[k]
+  return ok
+}
+
+function parse (args, data, remain, types, shorthands) {
+  debug("parse", args, data, remain)
+
+  var key = null
+    , abbrevs = abbrev(Object.keys(types))
+    , shortAbbr = abbrev(Object.keys(shorthands))
+
+  for (var i = 0; i < args.length; i ++) {
+    var arg = args[i]
+    debug("arg", arg)
+
+    if (arg.match(/^-{2,}$/)) {
+      // done with keys.
+      // the rest are args.
+      remain.push.apply(remain, args.slice(i + 1))
+      args[i] = "--"
+      break
+    }
+    var hadEq = false
+    if (arg.charAt(0) === "-" && arg.length > 1) {
+      var at = arg.indexOf('=')
+      if (at > -1) {
+        hadEq = true
+        var v = arg.substr(at + 1)
+        arg = arg.substr(0, at)
+        args.splice(i, 1, arg, v)
+      }
+
+      // see if it's a shorthand
+      // if so, splice and back up to re-parse it.
+      var shRes = resolveShort(arg, shorthands, shortAbbr, abbrevs)
+      debug("arg=%j shRes=%j", arg, shRes)
+      if (shRes) {
+        debug(arg, shRes)
+        args.splice.apply(args, [i, 1].concat(shRes))
+        if (arg !== shRes[0]) {
+          i --
+          continue
+        }
+      }
+      arg = arg.replace(/^-+/, "")
+      var no = null
+      while (arg.toLowerCase().indexOf("no-") === 0) {
+        no = !no
+        arg = arg.substr(3)
+      }
+
+      if (abbrevs[arg]) arg = abbrevs[arg]
+
+      var argType = types[arg]
+      var isTypeArray = Array.isArray(argType)
+      if (isTypeArray && argType.length === 1) {
+        isTypeArray = false
+        argType = argType[0]
+      }
+
+      var isArray = argType === Array ||
+        isTypeArray && argType.indexOf(Array) !== -1
+
+      // allow unknown things to be arrays if specified multiple times.
+      if (!types.hasOwnProperty(arg) && data.hasOwnProperty(arg)) {
+        if (!Array.isArray(data[arg]))
+          data[arg] = [data[arg]]
+        isArray = true
+      }
+
+      var val
+        , la = args[i + 1]
+
+      var isBool = typeof no === 'boolean' ||
+        argType === Boolean ||
+        isTypeArray && argType.indexOf(Boolean) !== -1 ||
+        (typeof argType === 'undefined' && !hadEq) ||
+        (la === "false" &&
+         (argType === null ||
+          isTypeArray && ~argType.indexOf(null)))
+
+      if (isBool) {
+        // just set and move along
+        val = !no
+        // however, also support --bool true or --bool false
+        if (la === "true" || la === "false") {
+          val = JSON.parse(la)
+          la = null
+          if (no) val = !val
+          i ++
+        }
+
+        // also support "foo":[Boolean, "bar"] and "--foo bar"
+        if (isTypeArray && la) {
+          if (~argType.indexOf(la)) {
+            // an explicit type
+            val = la
+            i ++
+          } else if ( la === "null" && ~argType.indexOf(null) ) {
+            // null allowed
+            val = null
+            i ++
+          } else if ( !la.match(/^-{2,}[^-]/) &&
+                      !isNaN(la) &&
+                      ~argType.indexOf(Number) ) {
+            // number
+            val = +la
+            i ++
+          } else if ( !la.match(/^-[^-]/) && ~argType.indexOf(String) ) {
+            // string
+            val = la
+            i ++
+          }
+        }
+
+        if (isArray) (data[arg] = data[arg] || []).push(val)
+        else data[arg] = val
+
+        continue
+      }
+
+      if (argType === String) {
+        if (la === undefined) {
+          la = ""
+        } else if (la.match(/^-{1,2}[^-]+/)) {
+          la = ""
+          i --
+        }
+      }
+
+      if (la && la.match(/^-{2,}$/)) {
+        la = undefined
+        i --
+      }
+
+      val = la === undefined ? true : la
+      if (isArray) (data[arg] = data[arg] || []).push(val)
+      else data[arg] = val
+
+      i ++
+      continue
+    }
+    remain.push(arg)
+  }
+}
+
+function resolveShort (arg, shorthands, shortAbbr, abbrevs) {
+  // handle single-char shorthands glommed together, like
+  // npm ls -glp, but only if there is one dash, and only if
+  // all of the chars are single-char shorthands, and it's
+  // not a match to some other abbrev.
+  arg = arg.replace(/^-+/, '')
+
+  // if it's an exact known option, then don't go any further
+  if (abbrevs[arg] === arg)
+    return null
+
+  // if it's an exact known shortopt, same deal
+  if (shorthands[arg]) {
+    // make it an array, if it's a list of words
+    if (shorthands[arg] && !Array.isArray(shorthands[arg]))
+      shorthands[arg] = shorthands[arg].split(/\s+/)
+
+    return shorthands[arg]
+  }
+
+  // first check to see if this arg is a set of single-char shorthands
+  var singles = shorthands.___singles
+  if (!singles) {
+    singles = Object.keys(shorthands).filter(function (s) {
+      return s.length === 1
+    }).reduce(function (l,r) {
+      l[r] = true
+      return l
+    }, {})
+    shorthands.___singles = singles
+    debug('shorthand singles', singles)
+  }
+
+  var chrs = arg.split("").filter(function (c) {
+    return singles[c]
+  })
+
+  if (chrs.join("") === arg) return chrs.map(function (c) {
+    return shorthands[c]
+  }).reduce(function (l, r) {
+    return l.concat(r)
+  }, [])
+
+
+  // if it's an arg abbrev, and not a literal shorthand, then prefer the arg
+  if (abbrevs[arg] && !shorthands[arg])
+    return null
+
+  // if it's an abbr for a shorthand, then use that
+  if (shortAbbr[arg])
+    arg = shortAbbr[arg]
+
+  // make it an array, if it's a list of words
+  if (shorthands[arg] && !Array.isArray(shorthands[arg]))
+    shorthands[arg] = shorthands[arg].split(/\s+/)
+
+  return shorthands[arg]
+}
diff --git a/node_modules/nopt/package.json b/node_modules/nopt/package.json
new file mode 100644
index 0000000..12ed02d
--- /dev/null
+++ b/node_modules/nopt/package.json
@@ -0,0 +1,34 @@
+{
+  "name": "nopt",
+  "version": "5.0.0",
+  "description": "Option parsing for Node, supporting types, shorthands, etc. Used by npm.",
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "main": "lib/nopt.js",
+  "scripts": {
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags",
+    "test": "tap test/*.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/nopt.git"
+  },
+  "bin": {
+    "nopt": "bin/nopt.js"
+  },
+  "license": "ISC",
+  "dependencies": {
+    "abbrev": "1"
+  },
+  "devDependencies": {
+    "tap": "^14.10.6"
+  },
+  "files": [
+    "bin",
+    "lib"
+  ],
+  "engines": {
+    "node": ">=6"
+  }
+}
diff --git a/node_modules/npmlog/LICENSE b/node_modules/npmlog/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/npmlog/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/npmlog/README.md b/node_modules/npmlog/README.md
new file mode 100644
index 0000000..268a4af
--- /dev/null
+++ b/node_modules/npmlog/README.md
@@ -0,0 +1,216 @@
+# npmlog
+
+The logger util that npm uses.
+
+This logger is very basic.  It does the logging for npm.  It supports
+custom levels and colored output.
+
+By default, logs are written to stderr.  If you want to send log messages
+to outputs other than streams, then you can change the `log.stream`
+member, or you can just listen to the events that it emits, and do
+whatever you want with them.
+
+# Installation
+
+```console
+npm install npmlog --save
+```
+
+# Basic Usage
+
+```javascript
+var log = require('npmlog')
+
+// additional stuff ---------------------------+
+// message ----------+                         |
+// prefix ----+      |                         |
+// level -+   |      |                         |
+//        v   v      v                         v
+    log.info('fyi', 'I have a kitty cat: %j', myKittyCat)
+```
+
+## log.level
+
+* {String}
+
+The level to display logs at.  Any logs at or above this level will be
+displayed.  The special level `silent` will prevent anything from being
+displayed ever.
+
+## log.record
+
+* {Array}
+
+An array of all the log messages that have been entered.
+
+## log.maxRecordSize
+
+* {Number}
+
+The maximum number of records to keep.  If log.record gets bigger than
+10% over this value, then it is sliced down to 90% of this value.
+
+The reason for the 10% window is so that it doesn't have to resize a
+large array on every log entry.
+
+## log.prefixStyle
+
+* {Object}
+
+A style object that specifies how prefixes are styled.  (See below)
+
+## log.headingStyle
+
+* {Object}
+
+A style object that specifies how the heading is styled.  (See below)
+
+## log.heading
+
+* {String} Default: ""
+
+If set, a heading that is printed at the start of every line.
+
+## log.stream
+
+* {Stream} Default: `process.stderr`
+
+The stream where output is written.
+
+## log.enableColor()
+
+Force colors to be used on all messages, regardless of the output
+stream.
+
+## log.disableColor()
+
+Disable colors on all messages.
+
+## log.enableProgress()
+
+Enable the display of log activity spinner and progress bar
+
+## log.disableProgress()
+
+Disable the display of a progress bar
+
+## log.enableUnicode()
+
+Force the unicode theme to be used for the progress bar.
+
+## log.disableUnicode()
+
+Disable the use of unicode in the progress bar.
+
+## log.setGaugeTemplate(template)
+
+Set a template for outputting the progress bar. See the [gauge documentation] for details.
+
+[gauge documentation]: https://npmjs.com/package/gauge
+
+## log.setGaugeThemeset(themes)
+
+Select a themeset to pick themes from for the progress bar. See the [gauge documentation] for details.
+
+## log.pause()
+
+Stop emitting messages to the stream, but do not drop them.
+
+## log.resume()
+
+Emit all buffered messages that were written while paused.
+
+## log.log(level, prefix, message, ...)
+
+* `level` {String} The level to emit the message at
+* `prefix` {String} A string prefix.  Set to "" to skip.
+* `message...` Arguments to `util.format`
+
+Emit a log message at the specified level.
+
+## log\[level](prefix, message, ...)
+
+For example,
+
+* log.silly(prefix, message, ...)
+* log.verbose(prefix, message, ...)
+* log.info(prefix, message, ...)
+* log.http(prefix, message, ...)
+* log.warn(prefix, message, ...)
+* log.error(prefix, message, ...)
+
+Like `log.log(level, prefix, message, ...)`.  In this way, each level is
+given a shorthand, so you can do `log.info(prefix, message)`.
+
+## log.addLevel(level, n, style, disp)
+
+* `level` {String} Level indicator
+* `n` {Number} The numeric level
+* `style` {Object} Object with fg, bg, inverse, etc.
+* `disp` {String} Optional replacement for `level` in the output.
+
+Sets up a new level with a shorthand function and so forth.
+
+Note that if the number is `Infinity`, then setting the level to that
+will cause all log messages to be suppressed.  If the number is
+`-Infinity`, then the only way to show it is to enable all log messages.
+
+## log.newItem(name, todo, weight)
+
+* `name` {String} Optional; progress item name.
+* `todo` {Number} Optional; total amount of work to be done. Default 0.
+* `weight` {Number} Optional; the weight of this item relative to others. Default 1.
+
+This adds a new `are-we-there-yet` item tracker to the progress tracker. The
+object returned has the `log[level]` methods but is otherwise an
+`are-we-there-yet` `Tracker` object.
+
+## log.newStream(name, todo, weight)
+
+This adds a new `are-we-there-yet` stream tracker to the progress tracker. The
+object returned has the `log[level]` methods but is otherwise an
+`are-we-there-yet` `TrackerStream` object.
+
+## log.newGroup(name, weight)
+
+This adds a new `are-we-there-yet` tracker group to the progress tracker. The
+object returned has the `log[level]` methods but is otherwise an
+`are-we-there-yet` `TrackerGroup` object.
+
+# Events
+
+Events are all emitted with the message object.
+
+* `log` Emitted for all messages
+* `log.<level>` Emitted for all messages with the `<level>` level.
+* `<prefix>` Messages with prefixes also emit their prefix as an event.
+
+# Style Objects
+
+Style objects can have the following fields:
+
+* `fg` {String} Color for the foreground text
+* `bg` {String} Color for the background
+* `bold`, `inverse`, `underline` {Boolean} Set the associated property
+* `bell` {Boolean} Make a noise (This is pretty annoying, probably.)
+
+# Message Objects
+
+Every log event is emitted with a message object, and the `log.record`
+list contains all of them that have been created.  They have the
+following fields:
+
+* `id` {Number}
+* `level` {String}
+* `prefix` {String}
+* `message` {String} Result of `util.format()`
+* `messageRaw` {Array} Arguments to `util.format()`
+
+# Blocking TTYs
+
+We use [`set-blocking`](https://npmjs.com/package/set-blocking) to set
+stderr and stdout blocking if they are tty's and have the setBlocking call.
+This is a work around for an issue in early versions of Node.js 6.x, which
+made stderr and stdout non-blocking on OSX. (They are always blocking
+Windows and were never blocking on Linux.) `npmlog` needs them to be blocking
+so that it can allow output to stdout and stderr to be interlaced.
diff --git a/node_modules/npmlog/log.js b/node_modules/npmlog/log.js
new file mode 100644
index 0000000..85ab8a4
--- /dev/null
+++ b/node_modules/npmlog/log.js
@@ -0,0 +1,403 @@
+'use strict'
+var Progress = require('are-we-there-yet')
+var Gauge = require('gauge')
+var EE = require('events').EventEmitter
+var log = exports = module.exports = new EE()
+var util = require('util')
+
+var setBlocking = require('set-blocking')
+var consoleControl = require('console-control-strings')
+
+setBlocking(true)
+var stream = process.stderr
+Object.defineProperty(log, 'stream', {
+  set: function (newStream) {
+    stream = newStream
+    if (this.gauge) {
+      this.gauge.setWriteTo(stream, stream)
+    }
+  },
+  get: function () {
+    return stream
+  },
+})
+
+// by default, decide based on tty-ness.
+var colorEnabled
+log.useColor = function () {
+  return colorEnabled != null ? colorEnabled : stream.isTTY
+}
+
+log.enableColor = function () {
+  colorEnabled = true
+  this.gauge.setTheme({hasColor: colorEnabled, hasUnicode: unicodeEnabled})
+}
+log.disableColor = function () {
+  colorEnabled = false
+  this.gauge.setTheme({hasColor: colorEnabled, hasUnicode: unicodeEnabled})
+}
+
+// default level
+log.level = 'info'
+
+log.gauge = new Gauge(stream, {
+  enabled: false, // no progress bars unless asked
+  theme: {hasColor: log.useColor()},
+  template: [
+    {type: 'progressbar', length: 20},
+    {type: 'activityIndicator', kerning: 1, length: 1},
+    {type: 'section', default: ''},
+    ':',
+    {type: 'logline', kerning: 1, default: ''},
+  ],
+})
+
+log.tracker = new Progress.TrackerGroup()
+
+// we track this separately as we may need to temporarily disable the
+// display of the status bar for our own loggy purposes.
+log.progressEnabled = log.gauge.isEnabled()
+
+var unicodeEnabled
+
+log.enableUnicode = function () {
+  unicodeEnabled = true
+  this.gauge.setTheme({hasColor: this.useColor(), hasUnicode: unicodeEnabled})
+}
+
+log.disableUnicode = function () {
+  unicodeEnabled = false
+  this.gauge.setTheme({hasColor: this.useColor(), hasUnicode: unicodeEnabled})
+}
+
+log.setGaugeThemeset = function (themes) {
+  this.gauge.setThemeset(themes)
+}
+
+log.setGaugeTemplate = function (template) {
+  this.gauge.setTemplate(template)
+}
+
+log.enableProgress = function () {
+  if (this.progressEnabled) {
+    return
+  }
+
+  this.progressEnabled = true
+  this.tracker.on('change', this.showProgress)
+  if (this._paused) {
+    return
+  }
+
+  this.gauge.enable()
+}
+
+log.disableProgress = function () {
+  if (!this.progressEnabled) {
+    return
+  }
+  this.progressEnabled = false
+  this.tracker.removeListener('change', this.showProgress)
+  this.gauge.disable()
+}
+
+var trackerConstructors = ['newGroup', 'newItem', 'newStream']
+
+var mixinLog = function (tracker) {
+  // mixin the public methods from log into the tracker
+  // (except: conflicts and one's we handle specially)
+  Object.keys(log).forEach(function (P) {
+    if (P[0] === '_') {
+      return
+    }
+
+    if (trackerConstructors.filter(function (C) {
+      return C === P
+    }).length) {
+      return
+    }
+
+    if (tracker[P]) {
+      return
+    }
+
+    if (typeof log[P] !== 'function') {
+      return
+    }
+
+    var func = log[P]
+    tracker[P] = function () {
+      return func.apply(log, arguments)
+    }
+  })
+  // if the new tracker is a group, make sure any subtrackers get
+  // mixed in too
+  if (tracker instanceof Progress.TrackerGroup) {
+    trackerConstructors.forEach(function (C) {
+      var func = tracker[C]
+      tracker[C] = function () {
+        return mixinLog(func.apply(tracker, arguments))
+      }
+    })
+  }
+  return tracker
+}
+
+// Add tracker constructors to the top level log object
+trackerConstructors.forEach(function (C) {
+  log[C] = function () {
+    return mixinLog(this.tracker[C].apply(this.tracker, arguments))
+  }
+})
+
+log.clearProgress = function (cb) {
+  if (!this.progressEnabled) {
+    return cb && process.nextTick(cb)
+  }
+
+  this.gauge.hide(cb)
+}
+
+log.showProgress = function (name, completed) {
+  if (!this.progressEnabled) {
+    return
+  }
+
+  var values = {}
+  if (name) {
+    values.section = name
+  }
+
+  var last = log.record[log.record.length - 1]
+  if (last) {
+    values.subsection = last.prefix
+    var disp = log.disp[last.level] || last.level
+    var logline = this._format(disp, log.style[last.level])
+    if (last.prefix) {
+      logline += ' ' + this._format(last.prefix, this.prefixStyle)
+    }
+
+    logline += ' ' + last.message.split(/\r?\n/)[0]
+    values.logline = logline
+  }
+  values.completed = completed || this.tracker.completed()
+  this.gauge.show(values)
+}.bind(log) // bind for use in tracker's on-change listener
+
+// temporarily stop emitting, but don't drop
+log.pause = function () {
+  this._paused = true
+  if (this.progressEnabled) {
+    this.gauge.disable()
+  }
+}
+
+log.resume = function () {
+  if (!this._paused) {
+    return
+  }
+
+  this._paused = false
+
+  var b = this._buffer
+  this._buffer = []
+  b.forEach(function (m) {
+    this.emitLog(m)
+  }, this)
+  if (this.progressEnabled) {
+    this.gauge.enable()
+  }
+}
+
+log._buffer = []
+
+var id = 0
+log.record = []
+log.maxRecordSize = 10000
+log.log = function (lvl, prefix, message) {
+  var l = this.levels[lvl]
+  if (l === undefined) {
+    return this.emit('error', new Error(util.format(
+      'Undefined log level: %j', lvl)))
+  }
+
+  var a = new Array(arguments.length - 2)
+  var stack = null
+  for (var i = 2; i < arguments.length; i++) {
+    var arg = a[i - 2] = arguments[i]
+
+    // resolve stack traces to a plain string.
+    if (typeof arg === 'object' && arg instanceof Error && arg.stack) {
+      Object.defineProperty(arg, 'stack', {
+        value: stack = arg.stack + '',
+        enumerable: true,
+        writable: true,
+      })
+    }
+  }
+  if (stack) {
+    a.unshift(stack + '\n')
+  }
+  message = util.format.apply(util, a)
+
+  var m = {
+    id: id++,
+    level: lvl,
+    prefix: String(prefix || ''),
+    message: message,
+    messageRaw: a,
+  }
+
+  this.emit('log', m)
+  this.emit('log.' + lvl, m)
+  if (m.prefix) {
+    this.emit(m.prefix, m)
+  }
+
+  this.record.push(m)
+  var mrs = this.maxRecordSize
+  var n = this.record.length - mrs
+  if (n > mrs / 10) {
+    var newSize = Math.floor(mrs * 0.9)
+    this.record = this.record.slice(-1 * newSize)
+  }
+
+  this.emitLog(m)
+}.bind(log)
+
+log.emitLog = function (m) {
+  if (this._paused) {
+    this._buffer.push(m)
+    return
+  }
+  if (this.progressEnabled) {
+    this.gauge.pulse(m.prefix)
+  }
+
+  var l = this.levels[m.level]
+  if (l === undefined) {
+    return
+  }
+
+  if (l < this.levels[this.level]) {
+    return
+  }
+
+  if (l > 0 && !isFinite(l)) {
+    return
+  }
+
+  // If 'disp' is null or undefined, use the lvl as a default
+  // Allows: '', 0 as valid disp
+  var disp = log.disp[m.level] != null ? log.disp[m.level] : m.level
+  this.clearProgress()
+  m.message.split(/\r?\n/).forEach(function (line) {
+    if (this.heading) {
+      this.write(this.heading, this.headingStyle)
+      this.write(' ')
+    }
+    this.write(disp, log.style[m.level])
+    var p = m.prefix || ''
+    if (p) {
+      this.write(' ')
+    }
+
+    this.write(p, this.prefixStyle)
+    this.write(' ' + line + '\n')
+  }, this)
+  this.showProgress()
+}
+
+log._format = function (msg, style) {
+  if (!stream) {
+    return
+  }
+
+  var output = ''
+  if (this.useColor()) {
+    style = style || {}
+    var settings = []
+    if (style.fg) {
+      settings.push(style.fg)
+    }
+
+    if (style.bg) {
+      settings.push('bg' + style.bg[0].toUpperCase() + style.bg.slice(1))
+    }
+
+    if (style.bold) {
+      settings.push('bold')
+    }
+
+    if (style.underline) {
+      settings.push('underline')
+    }
+
+    if (style.inverse) {
+      settings.push('inverse')
+    }
+
+    if (settings.length) {
+      output += consoleControl.color(settings)
+    }
+
+    if (style.beep) {
+      output += consoleControl.beep()
+    }
+  }
+  output += msg
+  if (this.useColor()) {
+    output += consoleControl.color('reset')
+  }
+
+  return output
+}
+
+log.write = function (msg, style) {
+  if (!stream) {
+    return
+  }
+
+  stream.write(this._format(msg, style))
+}
+
+log.addLevel = function (lvl, n, style, disp) {
+  // If 'disp' is null or undefined, use the lvl as a default
+  if (disp == null) {
+    disp = lvl
+  }
+
+  this.levels[lvl] = n
+  this.style[lvl] = style
+  if (!this[lvl]) {
+    this[lvl] = function () {
+      var a = new Array(arguments.length + 1)
+      a[0] = lvl
+      for (var i = 0; i < arguments.length; i++) {
+        a[i + 1] = arguments[i]
+      }
+
+      return this.log.apply(this, a)
+    }.bind(this)
+  }
+  this.disp[lvl] = disp
+}
+
+log.prefixStyle = { fg: 'magenta' }
+log.headingStyle = { fg: 'white', bg: 'black' }
+
+log.style = {}
+log.levels = {}
+log.disp = {}
+log.addLevel('silly', -Infinity, { inverse: true }, 'sill')
+log.addLevel('verbose', 1000, { fg: 'blue', bg: 'black' }, 'verb')
+log.addLevel('info', 2000, { fg: 'green' })
+log.addLevel('timing', 2500, { fg: 'green', bg: 'black' })
+log.addLevel('http', 3000, { fg: 'green', bg: 'black' })
+log.addLevel('notice', 3500, { fg: 'blue', bg: 'black' })
+log.addLevel('warn', 4000, { fg: 'black', bg: 'yellow' }, 'WARN')
+log.addLevel('error', 5000, { fg: 'red', bg: 'black' }, 'ERR!')
+log.addLevel('silent', Infinity)
+
+// allow 'error' prefix
+log.on('error', function () {})
diff --git a/node_modules/npmlog/package.json b/node_modules/npmlog/package.json
new file mode 100644
index 0000000..960ea92
--- /dev/null
+++ b/node_modules/npmlog/package.json
@@ -0,0 +1,33 @@
+{
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "name": "npmlog",
+  "description": "logger for npm",
+  "version": "5.0.1",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/npmlog.git"
+  },
+  "main": "log.js",
+  "files": [
+    "log.js"
+  ],
+  "scripts": {
+    "test": "tap test/*.js --branches=95",
+    "npmclilint": "npmcli-lint",
+    "lint": "npm run npmclilint -- \"*.*js\" \"test/**/*.*js\"",
+    "lintfix": "npm run lint -- --fix",
+    "posttest": "npm run lint --",
+    "postsnap": "npm run lintfix --"
+  },
+  "dependencies": {
+    "are-we-there-yet": "^2.0.0",
+    "console-control-strings": "^1.1.0",
+    "gauge": "^3.0.0",
+    "set-blocking": "^2.0.0"
+  },
+  "devDependencies": {
+    "@npmcli/lint": "^1.0.1",
+    "tap": "^15.0.9"
+  },
+  "license": "ISC"
+}
diff --git a/node_modules/once/LICENSE b/node_modules/once/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/once/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/once/README.md b/node_modules/once/README.md
new file mode 100644
index 0000000..1f1ffca
--- /dev/null
+++ b/node_modules/once/README.md
@@ -0,0 +1,79 @@
+# once
+
+Only call a function once.
+
+## usage
+
+```javascript
+var once = require('once')
+
+function load (file, cb) {
+  cb = once(cb)
+  loader.load('file')
+  loader.once('load', cb)
+  loader.once('error', cb)
+}
+```
+
+Or add to the Function.prototype in a responsible way:
+
+```javascript
+// only has to be done once
+require('once').proto()
+
+function load (file, cb) {
+  cb = cb.once()
+  loader.load('file')
+  loader.once('load', cb)
+  loader.once('error', cb)
+}
+```
+
+Ironically, the prototype feature makes this module twice as
+complicated as necessary.
+
+To check whether you function has been called, use `fn.called`. Once the
+function is called for the first time the return value of the original
+function is saved in `fn.value` and subsequent calls will continue to
+return this value.
+
+```javascript
+var once = require('once')
+
+function load (cb) {
+  cb = once(cb)
+  var stream = createStream()
+  stream.once('data', cb)
+  stream.once('end', function () {
+    if (!cb.called) cb(new Error('not found'))
+  })
+}
+```
+
+## `once.strict(func)`
+
+Throw an error if the function is called twice.
+
+Some functions are expected to be called only once. Using `once` for them would
+potentially hide logical errors.
+
+In the example below, the `greet` function has to call the callback only once:
+
+```javascript
+function greet (name, cb) {
+  // return is missing from the if statement
+  // when no name is passed, the callback is called twice
+  if (!name) cb('Hello anonymous')
+  cb('Hello ' + name)
+}
+
+function log (msg) {
+  console.log(msg)
+}
+
+// this will print 'Hello anonymous' but the logical error will be missed
+greet(null, once(msg))
+
+// once.strict will print 'Hello anonymous' and throw an error when the callback will be called the second time
+greet(null, once.strict(msg))
+```
diff --git a/node_modules/once/once.js b/node_modules/once/once.js
new file mode 100644
index 0000000..2354067
--- /dev/null
+++ b/node_modules/once/once.js
@@ -0,0 +1,42 @@
+var wrappy = require('wrappy')
+module.exports = wrappy(once)
+module.exports.strict = wrappy(onceStrict)
+
+once.proto = once(function () {
+  Object.defineProperty(Function.prototype, 'once', {
+    value: function () {
+      return once(this)
+    },
+    configurable: true
+  })
+
+  Object.defineProperty(Function.prototype, 'onceStrict', {
+    value: function () {
+      return onceStrict(this)
+    },
+    configurable: true
+  })
+})
+
+function once (fn) {
+  var f = function () {
+    if (f.called) return f.value
+    f.called = true
+    return f.value = fn.apply(this, arguments)
+  }
+  f.called = false
+  return f
+}
+
+function onceStrict (fn) {
+  var f = function () {
+    if (f.called)
+      throw new Error(f.onceError)
+    f.called = true
+    return f.value = fn.apply(this, arguments)
+  }
+  var name = fn.name || 'Function wrapped with `once`'
+  f.onceError = name + " shouldn't be called more than once"
+  f.called = false
+  return f
+}
diff --git a/node_modules/once/package.json b/node_modules/once/package.json
new file mode 100644
index 0000000..16815b2
--- /dev/null
+++ b/node_modules/once/package.json
@@ -0,0 +1,33 @@
+{
+  "name": "once",
+  "version": "1.4.0",
+  "description": "Run a function exactly one time",
+  "main": "once.js",
+  "directories": {
+    "test": "test"
+  },
+  "dependencies": {
+    "wrappy": "1"
+  },
+  "devDependencies": {
+    "tap": "^7.0.1"
+  },
+  "scripts": {
+    "test": "tap test/*.js"
+  },
+  "files": [
+    "once.js"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/isaacs/once"
+  },
+  "keywords": [
+    "once",
+    "function",
+    "one",
+    "single"
+  ],
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "ISC"
+}
diff --git a/node_modules/p-map/index.d.ts b/node_modules/p-map/index.d.ts
new file mode 100644
index 0000000..bcbe0af
--- /dev/null
+++ b/node_modules/p-map/index.d.ts
@@ -0,0 +1,67 @@
+declare namespace pMap {
+	interface Options {
+		/**
+		Number of concurrently pending promises returned by `mapper`.
+
+		Must be an integer from 1 and up or `Infinity`.
+
+		@default Infinity
+		*/
+		readonly concurrency?: number;
+
+		/**
+		When set to `false`, instead of stopping when a promise rejects, it will wait for all the promises to settle and then reject with an [aggregated error](https://github.com/sindresorhus/aggregate-error) containing all the errors from the rejected promises.
+
+		@default true
+		*/
+		readonly stopOnError?: boolean;
+	}
+
+	/**
+	Function which is called for every item in `input`. Expected to return a `Promise` or value.
+
+	@param element - Iterated element.
+	@param index - Index of the element in the source array.
+	*/
+	type Mapper<Element = any, NewElement = unknown> = (
+		element: Element,
+		index: number
+	) => NewElement | Promise<NewElement>;
+}
+
+/**
+@param input - Iterated over concurrently in the `mapper` function.
+@param mapper - Function which is called for every item in `input`. Expected to return a `Promise` or value.
+@returns A `Promise` that is fulfilled when all promises in `input` and ones returned from `mapper` are fulfilled, or rejects if any of the promises reject. The fulfilled value is an `Array` of the fulfilled values returned from `mapper` in `input` order.
+
+@example
+```
+import pMap = require('p-map');
+import got = require('got');
+
+const sites = [
+	getWebsiteFromUsername('https://sindresorhus'), //=> Promise
+	'https://ava.li',
+	'https://github.com'
+];
+
+(async () => {
+	const mapper = async site => {
+		const {requestUrl} = await got.head(site);
+		return requestUrl;
+	};
+
+	const result = await pMap(sites, mapper, {concurrency: 2});
+
+	console.log(result);
+	//=> ['https://sindresorhus.com/', 'https://ava.li/', 'https://github.com/']
+})();
+```
+*/
+declare function pMap<Element, NewElement>(
+	input: Iterable<Element>,
+	mapper: pMap.Mapper<Element, NewElement>,
+	options?: pMap.Options
+): Promise<NewElement[]>;
+
+export = pMap;
diff --git a/node_modules/p-map/index.js b/node_modules/p-map/index.js
new file mode 100644
index 0000000..c11a285
--- /dev/null
+++ b/node_modules/p-map/index.js
@@ -0,0 +1,81 @@
+'use strict';
+const AggregateError = require('aggregate-error');
+
+module.exports = async (
+	iterable,
+	mapper,
+	{
+		concurrency = Infinity,
+		stopOnError = true
+	} = {}
+) => {
+	return new Promise((resolve, reject) => {
+		if (typeof mapper !== 'function') {
+			throw new TypeError('Mapper function is required');
+		}
+
+		if (!((Number.isSafeInteger(concurrency) || concurrency === Infinity) && concurrency >= 1)) {
+			throw new TypeError(`Expected \`concurrency\` to be an integer from 1 and up or \`Infinity\`, got \`${concurrency}\` (${typeof concurrency})`);
+		}
+
+		const result = [];
+		const errors = [];
+		const iterator = iterable[Symbol.iterator]();
+		let isRejected = false;
+		let isIterableDone = false;
+		let resolvingCount = 0;
+		let currentIndex = 0;
+
+		const next = () => {
+			if (isRejected) {
+				return;
+			}
+
+			const nextItem = iterator.next();
+			const index = currentIndex;
+			currentIndex++;
+
+			if (nextItem.done) {
+				isIterableDone = true;
+
+				if (resolvingCount === 0) {
+					if (!stopOnError && errors.length !== 0) {
+						reject(new AggregateError(errors));
+					} else {
+						resolve(result);
+					}
+				}
+
+				return;
+			}
+
+			resolvingCount++;
+
+			(async () => {
+				try {
+					const element = await nextItem.value;
+					result[index] = await mapper(element, index);
+					resolvingCount--;
+					next();
+				} catch (error) {
+					if (stopOnError) {
+						isRejected = true;
+						reject(error);
+					} else {
+						errors.push(error);
+						resolvingCount--;
+						next();
+					}
+				}
+			})();
+		};
+
+		for (let i = 0; i < concurrency; i++) {
+			next();
+
+			if (isIterableDone) {
+				break;
+			}
+		}
+	});
+};
diff --git a/node_modules/p-map/license b/node_modules/p-map/license
new file mode 100644
index 0000000..fa7ceba
--- /dev/null
+++ b/node_modules/p-map/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (https://sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/p-map/package.json b/node_modules/p-map/package.json
new file mode 100644
index 0000000..042b1af
--- /dev/null
+++ b/node_modules/p-map/package.json
@@ -0,0 +1,53 @@
+{
+	"name": "p-map",
+	"version": "4.0.0",
+	"description": "Map over promises concurrently",
+	"license": "MIT",
+	"repository": "sindresorhus/p-map",
+	"funding": "https://github.com/sponsors/sindresorhus",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "https://sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=10"
+	},
+	"scripts": {
+		"test": "xo && ava && tsd"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"promise",
+		"map",
+		"resolved",
+		"wait",
+		"collection",
+		"iterable",
+		"iterator",
+		"race",
+		"fulfilled",
+		"async",
+		"await",
+		"promises",
+		"concurrently",
+		"concurrency",
+		"parallel",
+		"bluebird"
+	],
+	"dependencies": {
+		"aggregate-error": "^3.0.0"
+	},
+	"devDependencies": {
+		"ava": "^2.2.0",
+		"delay": "^4.1.0",
+		"in-range": "^2.0.0",
+		"random-int": "^2.0.0",
+		"time-span": "^3.1.0",
+		"tsd": "^0.7.4",
+		"xo": "^0.27.2"
+	}
+}
diff --git a/node_modules/p-map/readme.md b/node_modules/p-map/readme.md
new file mode 100644
index 0000000..53a3715
--- /dev/null
+++ b/node_modules/p-map/readme.md
@@ -0,0 +1,89 @@
+# p-map [![Build Status](https://travis-ci.org/sindresorhus/p-map.svg?branch=master)](https://travis-ci.org/sindresorhus/p-map)
+
+> Map over promises concurrently
+
+Useful when you need to run promise-returning & async functions multiple times with different inputs concurrently.
+
+## Install
+
+```
+$ npm install p-map
+```
+
+## Usage
+
+```js
+const pMap = require('p-map');
+const got = require('got');
+
+const sites = [
+	getWebsiteFromUsername('https://sindresorhus'), //=> Promise
+	'https://ava.li',
+	'https://github.com'
+];
+
+(async () => {
+	const mapper = async site => {
+		const {requestUrl} = await got.head(site);
+		return requestUrl;
+	};
+
+ 	const result = await pMap(sites, mapper, {concurrency: 2});
+
+	console.log(result);
+	//=> ['https://sindresorhus.com/', 'https://ava.li/', 'https://github.com/']
+})();
+```
+
+## API
+
+### pMap(input, mapper, options?)
+
+Returns a `Promise` that is fulfilled when all promises in `input` and ones returned from `mapper` are fulfilled, or rejects if any of the promises reject. The fulfilled value is an `Array` of the fulfilled values returned from `mapper` in `input` order.
+
+#### input
+
+Type: `Iterable<Promise | unknown>`
+
+Iterated over concurrently in the `mapper` function.
+
+#### mapper(element, index)
+
+Type: `Function`
+
+Expected to return a `Promise` or value.
+
+#### options
+
+Type: `object`
+
+##### concurrency
+
+Type: `number` (Integer)\
+Default: `Infinity`\
+Minimum: `1`
+
+Number of concurrently pending promises returned by `mapper`.
+
+##### stopOnError
+
+Type: `boolean`\
+Default: `true`
+
+When set to `false`, instead of stopping when a promise rejects, it will wait for all the promises to settle and then reject with an [aggregated error](https://github.com/sindresorhus/aggregate-error) containing all the errors from the rejected promises.
+
+## p-map for enterprise
+
+Available as part of the Tidelift Subscription.
+
+The maintainers of p-map and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/npm-p-map?utm_source=npm-p-map&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)
+
+## Related
+
+- [p-all](https://github.com/sindresorhus/p-all) - Run promise-returning & async functions concurrently with optional limited concurrency
+- [p-filter](https://github.com/sindresorhus/p-filter) - Filter promises concurrently
+- [p-times](https://github.com/sindresorhus/p-times) - Run promise-returning & async functions a specific number of times concurrently
+- [p-props](https://github.com/sindresorhus/p-props) - Like `Promise.all()` but for `Map` and `Object`
+- [p-map-series](https://github.com/sindresorhus/p-map-series) - Map over promises serially
+- [p-queue](https://github.com/sindresorhus/p-queue) - Promise queue with concurrency control
+- [More…](https://github.com/sindresorhus/promise-fun)
diff --git a/node_modules/path-is-absolute/index.js b/node_modules/path-is-absolute/index.js
new file mode 100644
index 0000000..22aa6c3
--- /dev/null
+++ b/node_modules/path-is-absolute/index.js
@@ -0,0 +1,20 @@
+'use strict';
+
+function posix(path) {
+	return path.charAt(0) === '/';
+}
+
+function win32(path) {
+	// https://github.com/nodejs/node/blob/b3fcc245fb25539909ef1d5eaa01dbf92e168633/lib/path.js#L56
+	var splitDeviceRe = /^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/;
+	var result = splitDeviceRe.exec(path);
+	var device = result[1] || '';
+	var isUnc = Boolean(device && device.charAt(1) !== ':');
+
+	// UNC paths are always absolute
+	return Boolean(result[2] || isUnc);
+}
+
+module.exports = process.platform === 'win32' ? win32 : posix;
+module.exports.posix = posix;
+module.exports.win32 = win32;
diff --git a/node_modules/path-is-absolute/license b/node_modules/path-is-absolute/license
new file mode 100644
index 0000000..654d0bf
--- /dev/null
+++ b/node_modules/path-is-absolute/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/node_modules/path-is-absolute/package.json b/node_modules/path-is-absolute/package.json
new file mode 100644
index 0000000..91196d5
--- /dev/null
+++ b/node_modules/path-is-absolute/package.json
@@ -0,0 +1,43 @@
+{
+  "name": "path-is-absolute",
+  "version": "1.0.1",
+  "description": "Node.js 0.12 path.isAbsolute() ponyfill",
+  "license": "MIT",
+  "repository": "sindresorhus/path-is-absolute",
+  "author": {
+    "name": "Sindre Sorhus",
+    "email": "sindresorhus@gmail.com",
+    "url": "sindresorhus.com"
+  },
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "test": "xo && node test.js"
+  },
+  "files": [
+    "index.js"
+  ],
+  "keywords": [
+    "path",
+    "paths",
+    "file",
+    "dir",
+    "absolute",
+    "isabsolute",
+    "is-absolute",
+    "built-in",
+    "util",
+    "utils",
+    "core",
+    "ponyfill",
+    "polyfill",
+    "shim",
+    "is",
+    "detect",
+    "check"
+  ],
+  "devDependencies": {
+    "xo": "^0.16.0"
+  }
+}
diff --git a/node_modules/path-is-absolute/readme.md b/node_modules/path-is-absolute/readme.md
new file mode 100644
index 0000000..8dbdf5f
--- /dev/null
+++ b/node_modules/path-is-absolute/readme.md
@@ -0,0 +1,59 @@
+# path-is-absolute [![Build Status](https://travis-ci.org/sindresorhus/path-is-absolute.svg?branch=master)](https://travis-ci.org/sindresorhus/path-is-absolute)
+
+> Node.js 0.12 [`path.isAbsolute()`](http://nodejs.org/api/path.html#path_path_isabsolute_path) [ponyfill](https://ponyfill.com)
+
+
+## Install
+
+```
+$ npm install --save path-is-absolute
+```
+
+
+## Usage
+
+```js
+const pathIsAbsolute = require('path-is-absolute');
+
+// Running on Linux
+pathIsAbsolute('/home/foo');
+//=> true
+pathIsAbsolute('C:/Users/foo');
+//=> false
+
+// Running on Windows
+pathIsAbsolute('C:/Users/foo');
+//=> true
+pathIsAbsolute('/home/foo');
+//=> false
+
+// Running on any OS
+pathIsAbsolute.posix('/home/foo');
+//=> true
+pathIsAbsolute.posix('C:/Users/foo');
+//=> false
+pathIsAbsolute.win32('C:/Users/foo');
+//=> true
+pathIsAbsolute.win32('/home/foo');
+//=> false
+```
+
+
+## API
+
+See the [`path.isAbsolute()` docs](http://nodejs.org/api/path.html#path_path_isabsolute_path).
+
+### pathIsAbsolute(path)
+
+### pathIsAbsolute.posix(path)
+
+POSIX specific version.
+
+### pathIsAbsolute.win32(path)
+
+Windows specific version.
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/node_modules/promise-inflight/LICENSE b/node_modules/promise-inflight/LICENSE
new file mode 100644
index 0000000..83e7c4c
--- /dev/null
+++ b/node_modules/promise-inflight/LICENSE
@@ -0,0 +1,14 @@
+Copyright (c) 2017, Rebecca Turner <me@re-becca.org>
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
diff --git a/node_modules/promise-inflight/README.md b/node_modules/promise-inflight/README.md
new file mode 100644
index 0000000..f0ae3a4
--- /dev/null
+++ b/node_modules/promise-inflight/README.md
@@ -0,0 +1,34 @@
+# promise-inflight
+
+One promise for multiple requests in flight to avoid async duplication
+
+## USAGE
+
+```javascript
+const inflight = require('promise-inflight')
+
+// some request that does some stuff
+function req(key) {
+  // key is any random string.  like a url or filename or whatever.
+  return inflight(key, () => {
+    // this is where you'd fetch the url or whatever
+    return Promise.delay(100)
+  })
+}
+
+// only assigns a single setTimeout
+// when it dings, all thens get called with the same result.  (There's only
+// one underlying promise.)
+req('foo').then(…)
+req('foo').then(…)
+req('foo').then(…)
+req('foo').then(…)
+```
+
+## SEE ALSO
+
+* [inflight](https://npmjs.com/package/inflight) - For the callback based function on which this is based.
+
+## STILL NEEDS
+
+Tests!
diff --git a/node_modules/promise-inflight/inflight.js b/node_modules/promise-inflight/inflight.js
new file mode 100644
index 0000000..ce054d3
--- /dev/null
+++ b/node_modules/promise-inflight/inflight.js
@@ -0,0 +1,36 @@
+'use strict'
+module.exports = inflight
+
+let Bluebird
+try {
+  Bluebird = require('bluebird')
+} catch (_) {
+  Bluebird = Promise
+}
+
+const active = {}
+inflight.active = active
+function inflight (unique, doFly) {
+  return Bluebird.all([unique, doFly]).then(function (args) {
+    const unique = args[0]
+    const doFly = args[1]
+    if (Array.isArray(unique)) {
+      return Bluebird.all(unique).then(function (uniqueArr) {
+        return _inflight(uniqueArr.join(''), doFly)
+      })
+    } else {
+      return _inflight(unique, doFly)
+    }
+  })
+
+  function _inflight (unique, doFly) {
+    if (!active[unique]) {
+      active[unique] = (new Bluebird(function (resolve) {
+        return resolve(doFly())
+      }))
+      active[unique].then(cleanup, cleanup)
+      function cleanup() { delete active[unique] }
+    }
+    return active[unique]
+  }
+}
diff --git a/node_modules/promise-inflight/package.json b/node_modules/promise-inflight/package.json
new file mode 100644
index 0000000..0d8930c
--- /dev/null
+++ b/node_modules/promise-inflight/package.json
@@ -0,0 +1,24 @@
+{
+  "name": "promise-inflight",
+  "version": "1.0.1",
+  "description": "One promise for multiple requests in flight to avoid async duplication",
+  "main": "inflight.js",
+  "files": [
+    "inflight.js"
+  ],
+  "license": "ISC",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "Rebecca Turner <me@re-becca.org> (http://re-becca.org/)",
+  "devDependencies": {},
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/iarna/promise-inflight.git"
+  },
+  "bugs": {
+    "url": "https://github.com/iarna/promise-inflight/issues"
+  },
+  "homepage": "https://github.com/iarna/promise-inflight#readme"
+}
diff --git a/node_modules/promise-retry/.editorconfig b/node_modules/promise-retry/.editorconfig
new file mode 100644
index 0000000..8bc4f10
--- /dev/null
+++ b/node_modules/promise-retry/.editorconfig
@@ -0,0 +1,15 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[package.json]
+indent_size = 2
diff --git a/node_modules/promise-retry/.jshintrc b/node_modules/promise-retry/.jshintrc
new file mode 100644
index 0000000..d867d49
--- /dev/null
+++ b/node_modules/promise-retry/.jshintrc
@@ -0,0 +1,64 @@
+{
+    "predef": [
+        "console",
+        "require",
+        "define",
+        "describe",
+        "it",
+        "before",
+        "beforeEach",
+        "after",
+        "afterEach",
+        "Promise"
+    ],
+
+    "node": true,
+    "devel": true,
+
+    "bitwise": true,
+    "curly": true,
+    "eqeqeq": true,
+    "forin": false,
+    "immed": true,
+    "latedef": false,
+    "newcap": true,
+    "noarg": true,
+    "noempty": false,
+    "nonew": true,
+    "plusplus": false,
+    "regexp": true,
+    "undef": true,
+    "unused": true,
+    "quotmark": "single",
+    "strict": true,
+    "trailing": true,
+
+    "asi": false,
+    "boss": false,
+    "debug": false,
+    "eqnull": true,
+    "es5": false,
+    "esnext": false,
+    "evil": false,
+    "expr": true,
+    "funcscope": false,
+    "globalstrict": false,
+    "iterator": false,
+    "lastsemic": false,
+    "laxbreak": false,
+    "laxcomma": false,
+    "loopfunc": true,
+    "multistr": false,
+    "onecase": true,
+    "regexdash": false,
+    "scripturl": false,
+    "smarttabs": false,
+    "shadow": false,
+    "sub": false,
+    "supernew": false,
+    "validthis": false,
+
+    "nomen": false,
+    "onevar": false,
+    "white": true
+}
diff --git a/node_modules/promise-retry/.travis.yml b/node_modules/promise-retry/.travis.yml
new file mode 100644
index 0000000..e2d26a9
--- /dev/null
+++ b/node_modules/promise-retry/.travis.yml
@@ -0,0 +1,4 @@
+language: node_js
+node_js:
+  - "10"
+  - "12"
diff --git a/node_modules/promise-retry/LICENSE b/node_modules/promise-retry/LICENSE
new file mode 100644
index 0000000..db5e914
--- /dev/null
+++ b/node_modules/promise-retry/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2014 IndigoUnited
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/node_modules/promise-retry/README.md b/node_modules/promise-retry/README.md
new file mode 100644
index 0000000..587de5c
--- /dev/null
+++ b/node_modules/promise-retry/README.md
@@ -0,0 +1,94 @@
+# node-promise-retry
+
+[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Dependency status][david-dm-image]][david-dm-url] [![Dev Dependency status][david-dm-dev-image]][david-dm-dev-url] [![Greenkeeper badge][greenkeeper-image]][greenkeeper-url]
+
+[npm-url]:https://npmjs.org/package/promise-retry
+[downloads-image]:http://img.shields.io/npm/dm/promise-retry.svg
+[npm-image]:http://img.shields.io/npm/v/promise-retry.svg
+[travis-url]:https://travis-ci.org/IndigoUnited/node-promise-retry
+[travis-image]:http://img.shields.io/travis/IndigoUnited/node-promise-retry/master.svg
+[david-dm-url]:https://david-dm.org/IndigoUnited/node-promise-retry
+[david-dm-image]:https://img.shields.io/david/IndigoUnited/node-promise-retry.svg
+[david-dm-dev-url]:https://david-dm.org/IndigoUnited/node-promise-retry?type=dev
+[david-dm-dev-image]:https://img.shields.io/david/dev/IndigoUnited/node-promise-retry.svg
+[greenkeeper-image]:https://badges.greenkeeper.io/IndigoUnited/node-promise-retry.svg
+[greenkeeper-url]:https://greenkeeper.io/
+
+Retries a function that returns a promise, leveraging the power of the [retry](https://github.com/tim-kos/node-retry) module to the promises world.
+
+There's already some modules that are able to retry functions that return promises but
+they were rather difficult to use or do not offer an easy way to do conditional retries.
+
+
+## Installation
+
+`$ npm install promise-retry`
+
+
+## Usage
+
+### promiseRetry(fn, [options])
+
+Calls `fn` until the returned promise ends up fulfilled or rejected with an error different than
+a `retry` error.   
+The `options` argument is an object which maps to the [retry](https://github.com/tim-kos/node-retry) module options:
+
+- `retries`: The maximum amount of times to retry the operation. Default is `10`.
+- `factor`: The exponential factor to use. Default is `2`.
+- `minTimeout`: The number of milliseconds before starting the first retry. Default is `1000`.
+- `maxTimeout`: The maximum number of milliseconds between two retries. Default is `Infinity`.
+- `randomize`: Randomizes the timeouts by multiplying with a factor between `1` to `2`. Default is `false`.
+
+
+The `fn` function will receive a `retry` function as its first argument that should be called with an error whenever you want to retry `fn`. The `retry` function will always throw an error.   
+If there are retries left, it will throw a special `retry` error that will be handled internally to call `fn` again.
+If there are no retries left, it will throw the actual error passed to it.
+
+If you prefer, you can pass the options first using the alternative function signature `promiseRetry([options], fn)`.
+
+## Example
+```js
+var promiseRetry = require('promise-retry');
+
+// Simple example
+promiseRetry(function (retry, number) {
+    console.log('attempt number', number);
+
+    return doSomething()
+    .catch(retry);
+})
+.then(function (value) {
+    // ..
+}, function (err) {
+    // ..
+});
+
+// Conditional example
+promiseRetry(function (retry, number) {
+    console.log('attempt number', number);
+
+    return doSomething()
+    .catch(function (err) {
+        if (err.code === 'ETIMEDOUT') {
+            retry(err);
+        }
+
+        throw err;
+    });
+})
+.then(function (value) {
+    // ..
+}, function (err) {
+    // ..
+});
+```
+
+
+## Tests
+
+`$ npm test`
+
+
+## License
+
+Released under the [MIT License](http://www.opensource.org/licenses/mit-license.php).
diff --git a/node_modules/promise-retry/index.js b/node_modules/promise-retry/index.js
new file mode 100644
index 0000000..5df48ae
--- /dev/null
+++ b/node_modules/promise-retry/index.js
@@ -0,0 +1,52 @@
+'use strict';
+
+var errcode = require('err-code');
+var retry = require('retry');
+
+var hasOwn = Object.prototype.hasOwnProperty;
+
+function isRetryError(err) {
+    return err && err.code === 'EPROMISERETRY' && hasOwn.call(err, 'retried');
+}
+
+function promiseRetry(fn, options) {
+    var temp;
+    var operation;
+
+    if (typeof fn === 'object' && typeof options === 'function') {
+        // Swap options and fn when using alternate signature (options, fn)
+        temp = options;
+        options = fn;
+        fn = temp;
+    }
+
+    operation = retry.operation(options);
+
+    return new Promise(function (resolve, reject) {
+        operation.attempt(function (number) {
+            Promise.resolve()
+            .then(function () {
+                return fn(function (err) {
+                    if (isRetryError(err)) {
+                        err = err.retried;
+                    }
+
+                    throw errcode(new Error('Retrying'), 'EPROMISERETRY', { retried: err });
+                }, number);
+            })
+            .then(resolve, function (err) {
+                if (isRetryError(err)) {
+                    err = err.retried;
+
+                    if (operation.retry(err || new Error())) {
+                        return;
+                    }
+                }
+
+                reject(err);
+            });
+        });
+    });
+}
+
+module.exports = promiseRetry;
diff --git a/node_modules/promise-retry/package.json b/node_modules/promise-retry/package.json
new file mode 100644
index 0000000..6842de8
--- /dev/null
+++ b/node_modules/promise-retry/package.json
@@ -0,0 +1,37 @@
+{
+  "name": "promise-retry",
+  "version": "2.0.1",
+  "description": "Retries a function that returns a promise, leveraging the power of the retry module.",
+  "main": "index.js",
+  "scripts": {
+    "test": "mocha --bail -t 10000"
+  },
+  "bugs": {
+    "url": "https://github.com/IndigoUnited/node-promise-retry/issues/"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/IndigoUnited/node-promise-retry.git"
+  },
+  "keywords": [
+    "retry",
+    "promise",
+    "backoff",
+    "repeat",
+    "replay"
+  ],
+  "author": "IndigoUnited <hello@indigounited.com> (http://indigounited.com)",
+  "license": "MIT",
+  "devDependencies": {
+    "expect.js": "^0.3.1",
+    "mocha": "^8.0.1",
+    "sleep-promise": "^8.0.1"
+  },
+  "dependencies": {
+    "err-code": "^2.0.2",
+    "retry": "^0.12.0"
+  },
+  "engines": {
+    "node": ">=10"
+  }
+}
diff --git a/node_modules/promise-retry/test/test.js b/node_modules/promise-retry/test/test.js
new file mode 100644
index 0000000..466b099
--- /dev/null
+++ b/node_modules/promise-retry/test/test.js
@@ -0,0 +1,263 @@
+'use strict';
+
+var expect = require('expect.js');
+var promiseRetry = require('../');
+var promiseDelay = require('sleep-promise');
+
+describe('promise-retry', function () {
+    it('should call fn again if retry was called', function () {
+        var count = 0;
+
+        return promiseRetry(function (retry) {
+            count += 1;
+
+            return promiseDelay(10)
+            .then(function () {
+                if (count <= 2) {
+                    retry(new Error('foo'));
+                }
+
+                return 'final';
+            });
+        }, { factor: 1 })
+        .then(function (value) {
+            expect(value).to.be('final');
+            expect(count).to.be(3);
+        }, function () {
+            throw new Error('should not fail');
+        });
+    });
+
+    it('should call fn with the attempt number', function () {
+        var count = 0;
+
+        return promiseRetry(function (retry, number) {
+            count += 1;
+            expect(count).to.equal(number);
+
+            return promiseDelay(10)
+            .then(function () {
+                if (count <= 2) {
+                    retry(new Error('foo'));
+                }
+
+                return 'final';
+            });
+        }, { factor: 1 })
+        .then(function (value) {
+            expect(value).to.be('final');
+            expect(count).to.be(3);
+        }, function () {
+            throw new Error('should not fail');
+        });
+    });
+
+    it('should not retry on fulfillment if retry was not called', function () {
+        var count = 0;
+
+        return promiseRetry(function () {
+            count += 1;
+
+            return promiseDelay(10)
+            .then(function () {
+                return 'final';
+            });
+        })
+        .then(function (value) {
+            expect(value).to.be('final');
+            expect(count).to.be(1);
+        }, function () {
+            throw new Error('should not fail');
+        });
+    });
+
+    it('should not retry on rejection if retry was not called', function () {
+        var count = 0;
+
+        return promiseRetry(function () {
+            count += 1;
+
+            return promiseDelay(10)
+            .then(function () {
+                throw new Error('foo');
+            });
+        })
+        .then(function () {
+            throw new Error('should not succeed');
+        }, function (err) {
+            expect(err.message).to.be('foo');
+            expect(count).to.be(1);
+        });
+    });
+
+    it('should not retry on rejection if nr of retries is 0', function () {
+        var count = 0;
+
+        return promiseRetry(function (retry) {
+            count += 1;
+
+            return promiseDelay(10)
+            .then(function () {
+                throw new Error('foo');
+            })
+            .catch(retry);
+        }, { retries : 0 })
+        .then(function () {
+            throw new Error('should not succeed');
+        }, function (err) {
+            expect(err.message).to.be('foo');
+            expect(count).to.be(1);
+        });
+    });
+
+    it('should reject the promise if the retries were exceeded', function () {
+        var count = 0;
+
+        return promiseRetry(function (retry) {
+            count += 1;
+
+            return promiseDelay(10)
+            .then(function () {
+                throw new Error('foo');
+            })
+            .catch(retry);
+        }, { retries: 2, factor: 1 })
+        .then(function () {
+            throw new Error('should not succeed');
+        }, function (err) {
+            expect(err.message).to.be('foo');
+            expect(count).to.be(3);
+        });
+    });
+
+    it('should pass options to the underlying retry module', function () {
+        var count = 0;
+
+        return promiseRetry(function (retry) {
+            return promiseDelay(10)
+            .then(function () {
+                if (count < 2) {
+                    count += 1;
+                    retry(new Error('foo'));
+                }
+
+                return 'final';
+            });
+        }, { retries: 1, factor: 1 })
+        .then(function () {
+            throw new Error('should not succeed');
+        }, function (err) {
+            expect(err.message).to.be('foo');
+        });
+    });
+
+    it('should convert direct fulfillments into promises', function () {
+        return promiseRetry(function () {
+            return 'final';
+        }, { factor: 1 })
+        .then(function (value) {
+            expect(value).to.be('final');
+        }, function () {
+            throw new Error('should not fail');
+        });
+    });
+
+    it('should convert direct rejections into promises', function () {
+        promiseRetry(function () {
+            throw new Error('foo');
+        }, { retries: 1, factor: 1 })
+        .then(function () {
+            throw new Error('should not succeed');
+        }, function (err) {
+            expect(err.message).to.be('foo');
+        });
+    });
+
+    it('should not crash on undefined rejections', function () {
+        return promiseRetry(function () {
+            throw undefined;
+        }, { retries: 1, factor: 1 })
+        .then(function () {
+            throw new Error('should not succeed');
+        }, function (err) {
+            expect(err).to.be(undefined);
+        })
+        .then(function () {
+            return promiseRetry(function (retry) {
+                retry();
+            }, { retries: 1, factor: 1 });
+        })
+        .then(function () {
+            throw new Error('should not succeed');
+        }, function (err) {
+            expect(err).to.be(undefined);
+        });
+    });
+
+    it('should retry if retry() was called with undefined', function () {
+        var count = 0;
+
+        return promiseRetry(function (retry) {
+            count += 1;
+
+            return promiseDelay(10)
+            .then(function () {
+                if (count <= 2) {
+                    retry();
+                }
+
+                return 'final';
+            });
+        }, { factor: 1 })
+        .then(function (value) {
+            expect(value).to.be('final');
+            expect(count).to.be(3);
+        }, function () {
+            throw new Error('should not fail');
+        });
+    });
+
+    it('should work with several retries in the same chain', function () {
+        var count = 0;
+
+        return promiseRetry(function (retry) {
+            count += 1;
+
+            return promiseDelay(10)
+            .then(function () {
+                retry(new Error('foo'));
+            })
+            .catch(function (err) {
+                retry(err);
+            });
+        }, { retries: 1, factor: 1 })
+        .then(function () {
+            throw new Error('should not succeed');
+        }, function (err) {
+            expect(err.message).to.be('foo');
+            expect(count).to.be(2);
+        });
+    });
+
+    it('should allow options to be passed first', function () {
+        var count = 0;
+
+        return promiseRetry({ factor: 1 }, function (retry) {
+            count += 1;
+
+            return promiseDelay(10)
+                .then(function () {
+                    if (count <= 2) {
+                        retry(new Error('foo'));
+                    }
+
+                    return 'final';
+                });
+        }).then(function (value) {
+            expect(value).to.be('final');
+            expect(count).to.be(3);
+        }, function () {
+            throw new Error('should not fail');
+        });
+    });
+});
diff --git a/node_modules/readable-stream/CONTRIBUTING.md b/node_modules/readable-stream/CONTRIBUTING.md
new file mode 100644
index 0000000..f478d58
--- /dev/null
+++ b/node_modules/readable-stream/CONTRIBUTING.md
@@ -0,0 +1,38 @@
+# Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+* (a) The contribution was created in whole or in part by me and I
+  have the right to submit it under the open source license
+  indicated in the file; or
+
+* (b) The contribution is based upon previous work that, to the best
+  of my knowledge, is covered under an appropriate open source
+  license and I have the right under that license to submit that
+  work with modifications, whether created in whole or in part
+  by me, under the same open source license (unless I am
+  permitted to submit under a different license), as indicated
+  in the file; or
+
+* (c) The contribution was provided directly to me by some other
+  person who certified (a), (b) or (c) and I have not modified
+  it.
+
+* (d) I understand and agree that this project and the contribution
+  are public and that a record of the contribution (including all
+  personal information I submit with it, including my sign-off) is
+  maintained indefinitely and may be redistributed consistent with
+  this project or the open source license(s) involved.
+
+## Moderation Policy
+
+The [Node.js Moderation Policy] applies to this WG.
+
+## Code of Conduct
+
+The [Node.js Code of Conduct][] applies to this WG.
+
+[Node.js Code of Conduct]:
+https://github.com/nodejs/node/blob/master/CODE_OF_CONDUCT.md
+[Node.js Moderation Policy]:
+https://github.com/nodejs/TSC/blob/master/Moderation-Policy.md
diff --git a/node_modules/readable-stream/GOVERNANCE.md b/node_modules/readable-stream/GOVERNANCE.md
new file mode 100644
index 0000000..16ffb93
--- /dev/null
+++ b/node_modules/readable-stream/GOVERNANCE.md
@@ -0,0 +1,136 @@
+### Streams Working Group
+
+The Node.js Streams is jointly governed by a Working Group
+(WG)
+that is responsible for high-level guidance of the project.
+
+The WG has final authority over this project including:
+
+* Technical direction
+* Project governance and process (including this policy)
+* Contribution policy
+* GitHub repository hosting
+* Conduct guidelines
+* Maintaining the list of additional Collaborators
+
+For the current list of WG members, see the project
+[README.md](./README.md#current-project-team-members).
+
+### Collaborators
+
+The readable-stream GitHub repository is
+maintained by the WG and additional Collaborators who are added by the
+WG on an ongoing basis.
+
+Individuals making significant and valuable contributions are made
+Collaborators and given commit-access to the project. These
+individuals are identified by the WG and their addition as
+Collaborators is discussed during the WG meeting.
+
+_Note:_ If you make a significant contribution and are not considered
+for commit-access log an issue or contact a WG member directly and it
+will be brought up in the next WG meeting.
+
+Modifications of the contents of the readable-stream repository are
+made on
+a collaborative basis. Anybody with a GitHub account may propose a
+modification via pull request and it will be considered by the project
+Collaborators. All pull requests must be reviewed and accepted by a
+Collaborator with sufficient expertise who is able to take full
+responsibility for the change. In the case of pull requests proposed
+by an existing Collaborator, an additional Collaborator is required
+for sign-off. Consensus should be sought if additional Collaborators
+participate and there is disagreement around a particular
+modification. See _Consensus Seeking Process_ below for further detail
+on the consensus model used for governance.
+
+Collaborators may opt to elevate significant or controversial
+modifications, or modifications that have not found consensus to the
+WG for discussion by assigning the ***WG-agenda*** tag to a pull
+request or issue. The WG should serve as the final arbiter where
+required.
+
+For the current list of Collaborators, see the project
+[README.md](./README.md#members).
+
+### WG Membership
+
+WG seats are not time-limited.  There is no fixed size of the WG.
+However, the expected target is between 6 and 12, to ensure adequate
+coverage of important areas of expertise, balanced with the ability to
+make decisions efficiently.
+
+There is no specific set of requirements or qualifications for WG
+membership beyond these rules.
+
+The WG may add additional members to the WG by unanimous consensus.
+
+A WG member may be removed from the WG by voluntary resignation, or by
+unanimous consensus of all other WG members.
+
+Changes to WG membership should be posted in the agenda, and may be
+suggested as any other agenda item (see "WG Meetings" below).
+
+If an addition or removal is proposed during a meeting, and the full
+WG is not in attendance to participate, then the addition or removal
+is added to the agenda for the subsequent meeting.  This is to ensure
+that all members are given the opportunity to participate in all
+membership decisions.  If a WG member is unable to attend a meeting
+where a planned membership decision is being made, then their consent
+is assumed.
+
+No more than 1/3 of the WG members may be affiliated with the same
+employer.  If removal or resignation of a WG member, or a change of
+employment by a WG member, creates a situation where more than 1/3 of
+the WG membership shares an employer, then the situation must be
+immediately remedied by the resignation or removal of one or more WG
+members affiliated with the over-represented employer(s).
+
+### WG Meetings
+
+The WG meets occasionally on a Google Hangout On Air. A designated moderator
+approved by the WG runs the meeting. Each meeting should be
+published to YouTube.
+
+Items are added to the WG agenda that are considered contentious or
+are modifications of governance, contribution policy, WG membership,
+or release process.
+
+The intention of the agenda is not to approve or review all patches;
+that should happen continuously on GitHub and be handled by the larger
+group of Collaborators.
+
+Any community member or contributor can ask that something be added to
+the next meeting's agenda by logging a GitHub Issue. Any Collaborator,
+WG member or the moderator can add the item to the agenda by adding
+the ***WG-agenda*** tag to the issue.
+
+Prior to each WG meeting the moderator will share the Agenda with
+members of the WG. WG members can add any items they like to the
+agenda at the beginning of each meeting. The moderator and the WG
+cannot veto or remove items.
+
+The WG may invite persons or representatives from certain projects to
+participate in a non-voting capacity.
+
+The moderator is responsible for summarizing the discussion of each
+agenda item and sends it as a pull request after the meeting.
+
+### Consensus Seeking Process
+
+The WG follows a
+[Consensus
+Seeking](http://en.wikipedia.org/wiki/Consensus-seeking_decision-making)
+decision-making model.
+
+When an agenda item has appeared to reach a consensus the moderator
+will ask "Does anyone object?" as a final call for dissent from the
+consensus.
+
+If an agenda item cannot reach a consensus a WG member can call for
+either a closing vote or a vote to table the issue to the next
+meeting. The call for a vote must be seconded by a majority of the WG
+or else the discussion will continue. Simple majority wins.
+
+Note that changes to WG membership require a majority consensus.  See
+"WG Membership" above.
diff --git a/node_modules/readable-stream/LICENSE b/node_modules/readable-stream/LICENSE
new file mode 100644
index 0000000..2873b3b
--- /dev/null
+++ b/node_modules/readable-stream/LICENSE
@@ -0,0 +1,47 @@
+Node.js is licensed for use as follows:
+
+"""
+Copyright Node.js contributors. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+"""
+
+This license applies to parts of Node.js originating from the
+https://github.com/joyent/node repository:
+
+"""
+Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+"""
diff --git a/node_modules/readable-stream/README.md b/node_modules/readable-stream/README.md
new file mode 100644
index 0000000..19117c1
--- /dev/null
+++ b/node_modules/readable-stream/README.md
@@ -0,0 +1,106 @@
+# readable-stream
+
+***Node.js core streams for userland*** [![Build Status](https://travis-ci.com/nodejs/readable-stream.svg?branch=master)](https://travis-ci.com/nodejs/readable-stream)
+
+
+[![NPM](https://nodei.co/npm/readable-stream.png?downloads=true&downloadRank=true)](https://nodei.co/npm/readable-stream/)
+[![NPM](https://nodei.co/npm-dl/readable-stream.png?&months=6&height=3)](https://nodei.co/npm/readable-stream/)
+
+
+[![Sauce Test Status](https://saucelabs.com/browser-matrix/readabe-stream.svg)](https://saucelabs.com/u/readabe-stream)
+
+```bash
+npm install --save readable-stream
+```
+
+This package is a mirror of the streams implementations in Node.js.
+
+Full documentation may be found on the [Node.js website](https://nodejs.org/dist/v10.18.1/docs/api/stream.html).
+
+If you want to guarantee a stable streams base, regardless of what version of
+Node you, or the users of your libraries are using, use **readable-stream** *only* and avoid the *"stream"* module in Node-core, for background see [this blogpost](http://r.va.gg/2014/06/why-i-dont-use-nodes-core-stream-module.html).
+
+As of version 2.0.0 **readable-stream** uses semantic versioning.
+
+## Version 3.x.x
+
+v3.x.x of `readable-stream` is a cut from Node 10. This version supports Node 6, 8, and 10, as well as evergreen browsers, IE 11 and latest Safari. The breaking changes introduced by v3 are composed by the combined breaking changes in [Node v9](https://nodejs.org/en/blog/release/v9.0.0/) and [Node v10](https://nodejs.org/en/blog/release/v10.0.0/), as follows:
+
+1. Error codes: https://github.com/nodejs/node/pull/13310,
+   https://github.com/nodejs/node/pull/13291,
+   https://github.com/nodejs/node/pull/16589,
+   https://github.com/nodejs/node/pull/15042,
+   https://github.com/nodejs/node/pull/15665,
+   https://github.com/nodejs/readable-stream/pull/344
+2. 'readable' have precedence over flowing
+   https://github.com/nodejs/node/pull/18994
+3. make virtual methods errors consistent
+   https://github.com/nodejs/node/pull/18813
+4. updated streams error handling
+   https://github.com/nodejs/node/pull/18438
+5. writable.end should return this.
+   https://github.com/nodejs/node/pull/18780
+6. readable continues to read when push('')
+   https://github.com/nodejs/node/pull/18211
+7. add custom inspect to BufferList
+   https://github.com/nodejs/node/pull/17907
+8. always defer 'readable' with nextTick
+   https://github.com/nodejs/node/pull/17979
+
+## Version 2.x.x
+v2.x.x of `readable-stream` is a cut of the stream module from Node 8 (there have been no semver-major changes from Node 4 to 8). This version supports all Node.js versions from 0.8, as well as evergreen browsers and IE 10 & 11.
+
+### Big Thanks
+
+Cross-browser Testing Platform and Open Source <3 Provided by [Sauce Labs][sauce]
+
+# Usage
+
+You can swap your `require('stream')` with `require('readable-stream')`
+without any changes, if you are just using one of the main classes and
+functions.
+
+```js
+const {
+  Readable,
+  Writable,
+  Transform,
+  Duplex,
+  pipeline,
+  finished
+} = require('readable-stream')
+````
+
+Note that `require('stream')` will return `Stream`, while
+`require('readable-stream')` will return `Readable`. We discourage using
+whatever is exported directly, but rather use one of the properties as
+shown in the example above.
+
+# Streams Working Group
+
+`readable-stream` is maintained by the Streams Working Group, which
+oversees the development and maintenance of the Streams API within
+Node.js. The responsibilities of the Streams Working Group include:
+
+* Addressing stream issues on the Node.js issue tracker.
+* Authoring and editing stream documentation within the Node.js project.
+* Reviewing changes to stream subclasses within the Node.js project.
+* Redirecting changes to streams from the Node.js project to this
+  project.
+* Assisting in the implementation of stream providers within Node.js.
+* Recommending versions of `readable-stream` to be included in Node.js.
+* Messaging about the future of streams to give the community advance
+  notice of changes.
+
+<a name="members"></a>
+## Team Members
+
+* **Calvin Metcalf** ([@calvinmetcalf](https://github.com/calvinmetcalf)) &lt;calvin.metcalf@gmail.com&gt;
+  - Release GPG key: F3EF5F62A87FC27A22E643F714CE4FF5015AA242
+* **Mathias Buus** ([@mafintosh](https://github.com/mafintosh)) &lt;mathiasbuus@gmail.com&gt;
+* **Matteo Collina** ([@mcollina](https://github.com/mcollina)) &lt;matteo.collina@gmail.com&gt;
+  - Release GPG key: 3ABC01543F22DD2239285CDD818674489FBC127E
+* **Irina Shestak** ([@lrlna](https://github.com/lrlna)) &lt;shestak.irina@gmail.com&gt;
+* **Yoshua Wyuts** ([@yoshuawuyts](https://github.com/yoshuawuyts)) &lt;yoshuawuyts@gmail.com&gt;
+
+[sauce]: https://saucelabs.com
diff --git a/node_modules/readable-stream/errors-browser.js b/node_modules/readable-stream/errors-browser.js
new file mode 100644
index 0000000..fb8e73e
--- /dev/null
+++ b/node_modules/readable-stream/errors-browser.js
@@ -0,0 +1,127 @@
+'use strict';
+
+function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
+
+var codes = {};
+
+function createErrorType(code, message, Base) {
+  if (!Base) {
+    Base = Error;
+  }
+
+  function getMessage(arg1, arg2, arg3) {
+    if (typeof message === 'string') {
+      return message;
+    } else {
+      return message(arg1, arg2, arg3);
+    }
+  }
+
+  var NodeError =
+  /*#__PURE__*/
+  function (_Base) {
+    _inheritsLoose(NodeError, _Base);
+
+    function NodeError(arg1, arg2, arg3) {
+      return _Base.call(this, getMessage(arg1, arg2, arg3)) || this;
+    }
+
+    return NodeError;
+  }(Base);
+
+  NodeError.prototype.name = Base.name;
+  NodeError.prototype.code = code;
+  codes[code] = NodeError;
+} // https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js
+
+
+function oneOf(expected, thing) {
+  if (Array.isArray(expected)) {
+    var len = expected.length;
+    expected = expected.map(function (i) {
+      return String(i);
+    });
+
+    if (len > 2) {
+      return "one of ".concat(thing, " ").concat(expected.slice(0, len - 1).join(', '), ", or ") + expected[len - 1];
+    } else if (len === 2) {
+      return "one of ".concat(thing, " ").concat(expected[0], " or ").concat(expected[1]);
+    } else {
+      return "of ".concat(thing, " ").concat(expected[0]);
+    }
+  } else {
+    return "of ".concat(thing, " ").concat(String(expected));
+  }
+} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith
+
+
+function startsWith(str, search, pos) {
+  return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;
+} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
+
+
+function endsWith(str, search, this_len) {
+  if (this_len === undefined || this_len > str.length) {
+    this_len = str.length;
+  }
+
+  return str.substring(this_len - search.length, this_len) === search;
+} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes
+
+
+function includes(str, search, start) {
+  if (typeof start !== 'number') {
+    start = 0;
+  }
+
+  if (start + search.length > str.length) {
+    return false;
+  } else {
+    return str.indexOf(search, start) !== -1;
+  }
+}
+
+createErrorType('ERR_INVALID_OPT_VALUE', function (name, value) {
+  return 'The value "' + value + '" is invalid for option "' + name + '"';
+}, TypeError);
+createErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) {
+  // determiner: 'must be' or 'must not be'
+  var determiner;
+
+  if (typeof expected === 'string' && startsWith(expected, 'not ')) {
+    determiner = 'must not be';
+    expected = expected.replace(/^not /, '');
+  } else {
+    determiner = 'must be';
+  }
+
+  var msg;
+
+  if (endsWith(name, ' argument')) {
+    // For cases like 'first argument'
+    msg = "The ".concat(name, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
+  } else {
+    var type = includes(name, '.') ? 'property' : 'argument';
+    msg = "The \"".concat(name, "\" ").concat(type, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
+  }
+
+  msg += ". Received type ".concat(typeof actual);
+  return msg;
+}, TypeError);
+createErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF');
+createErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) {
+  return 'The ' + name + ' method is not implemented';
+});
+createErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close');
+createErrorType('ERR_STREAM_DESTROYED', function (name) {
+  return 'Cannot call ' + name + ' after a stream was destroyed';
+});
+createErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');
+createErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable');
+createErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end');
+createErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError);
+createErrorType('ERR_UNKNOWN_ENCODING', function (arg) {
+  return 'Unknown encoding: ' + arg;
+}, TypeError);
+createErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event');
+module.exports.codes = codes;
diff --git a/node_modules/readable-stream/errors.js b/node_modules/readable-stream/errors.js
new file mode 100644
index 0000000..8471526
--- /dev/null
+++ b/node_modules/readable-stream/errors.js
@@ -0,0 +1,116 @@
+'use strict';
+
+const codes = {};
+
+function createErrorType(code, message, Base) {
+  if (!Base) {
+    Base = Error
+  }
+
+  function getMessage (arg1, arg2, arg3) {
+    if (typeof message === 'string') {
+      return message
+    } else {
+      return message(arg1, arg2, arg3)
+    }
+  }
+
+  class NodeError extends Base {
+    constructor (arg1, arg2, arg3) {
+      super(getMessage(arg1, arg2, arg3));
+    }
+  }
+
+  NodeError.prototype.name = Base.name;
+  NodeError.prototype.code = code;
+
+  codes[code] = NodeError;
+}
+
+// https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js
+function oneOf(expected, thing) {
+  if (Array.isArray(expected)) {
+    const len = expected.length;
+    expected = expected.map((i) => String(i));
+    if (len > 2) {
+      return `one of ${thing} ${expected.slice(0, len - 1).join(', ')}, or ` +
+             expected[len - 1];
+    } else if (len === 2) {
+      return `one of ${thing} ${expected[0]} or ${expected[1]}`;
+    } else {
+      return `of ${thing} ${expected[0]}`;
+    }
+  } else {
+    return `of ${thing} ${String(expected)}`;
+  }
+}
+
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith
+function startsWith(str, search, pos) {
+	return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;
+}
+
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
+function endsWith(str, search, this_len) {
+	if (this_len === undefined || this_len > str.length) {
+		this_len = str.length;
+	}
+	return str.substring(this_len - search.length, this_len) === search;
+}
+
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes
+function includes(str, search, start) {
+  if (typeof start !== 'number') {
+    start = 0;
+  }
+
+  if (start + search.length > str.length) {
+    return false;
+  } else {
+    return str.indexOf(search, start) !== -1;
+  }
+}
+
+createErrorType('ERR_INVALID_OPT_VALUE', function (name, value) {
+  return 'The value "' + value + '" is invalid for option "' + name + '"'
+}, TypeError);
+createErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) {
+  // determiner: 'must be' or 'must not be'
+  let determiner;
+  if (typeof expected === 'string' && startsWith(expected, 'not ')) {
+    determiner = 'must not be';
+    expected = expected.replace(/^not /, '');
+  } else {
+    determiner = 'must be';
+  }
+
+  let msg;
+  if (endsWith(name, ' argument')) {
+    // For cases like 'first argument'
+    msg = `The ${name} ${determiner} ${oneOf(expected, 'type')}`;
+  } else {
+    const type = includes(name, '.') ? 'property' : 'argument';
+    msg = `The "${name}" ${type} ${determiner} ${oneOf(expected, 'type')}`;
+  }
+
+  msg += `. Received type ${typeof actual}`;
+  return msg;
+}, TypeError);
+createErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF');
+createErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) {
+  return 'The ' + name + ' method is not implemented'
+});
+createErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close');
+createErrorType('ERR_STREAM_DESTROYED', function (name) {
+  return 'Cannot call ' + name + ' after a stream was destroyed';
+});
+createErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');
+createErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable');
+createErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end');
+createErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError);
+createErrorType('ERR_UNKNOWN_ENCODING', function (arg) {
+  return 'Unknown encoding: ' + arg
+}, TypeError);
+createErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event');
+
+module.exports.codes = codes;
diff --git a/node_modules/readable-stream/experimentalWarning.js b/node_modules/readable-stream/experimentalWarning.js
new file mode 100644
index 0000000..78e8414
--- /dev/null
+++ b/node_modules/readable-stream/experimentalWarning.js
@@ -0,0 +1,17 @@
+'use strict'
+
+var experimentalWarnings = new Set();
+
+function emitExperimentalWarning(feature) {
+  if (experimentalWarnings.has(feature)) return;
+  var msg = feature + ' is an experimental feature. This feature could ' +
+       'change at any time';
+  experimentalWarnings.add(feature);
+  process.emitWarning(msg, 'ExperimentalWarning');
+}
+
+function noop() {}
+
+module.exports.emitExperimentalWarning = process.emitWarning
+  ? emitExperimentalWarning
+  : noop;
diff --git a/node_modules/readable-stream/lib/_stream_duplex.js b/node_modules/readable-stream/lib/_stream_duplex.js
new file mode 100644
index 0000000..19abfa6
--- /dev/null
+++ b/node_modules/readable-stream/lib/_stream_duplex.js
@@ -0,0 +1,126 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a duplex stream is just a stream that is both readable and writable.
+// Since JS doesn't have multiple prototypal inheritance, this class
+// prototypally inherits from Readable, and then parasitically from
+// Writable.
+
+'use strict';
+
+/*<replacement>*/
+var objectKeys = Object.keys || function (obj) {
+  var keys = [];
+  for (var key in obj) keys.push(key);
+  return keys;
+};
+/*</replacement>*/
+
+module.exports = Duplex;
+var Readable = require('./_stream_readable');
+var Writable = require('./_stream_writable');
+require('inherits')(Duplex, Readable);
+{
+  // Allow the keys array to be GC'ed.
+  var keys = objectKeys(Writable.prototype);
+  for (var v = 0; v < keys.length; v++) {
+    var method = keys[v];
+    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
+  }
+}
+function Duplex(options) {
+  if (!(this instanceof Duplex)) return new Duplex(options);
+  Readable.call(this, options);
+  Writable.call(this, options);
+  this.allowHalfOpen = true;
+  if (options) {
+    if (options.readable === false) this.readable = false;
+    if (options.writable === false) this.writable = false;
+    if (options.allowHalfOpen === false) {
+      this.allowHalfOpen = false;
+      this.once('end', onend);
+    }
+  }
+}
+Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._writableState.highWaterMark;
+  }
+});
+Object.defineProperty(Duplex.prototype, 'writableBuffer', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._writableState && this._writableState.getBuffer();
+  }
+});
+Object.defineProperty(Duplex.prototype, 'writableLength', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._writableState.length;
+  }
+});
+
+// the no-half-open enforcer
+function onend() {
+  // If the writable side ended, then we're ok.
+  if (this._writableState.ended) return;
+
+  // no more data can be written.
+  // But allow more writes to happen in this tick.
+  process.nextTick(onEndNT, this);
+}
+function onEndNT(self) {
+  self.end();
+}
+Object.defineProperty(Duplex.prototype, 'destroyed', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return false;
+    }
+    return this._readableState.destroyed && this._writableState.destroyed;
+  },
+  set: function set(value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._readableState.destroyed = value;
+    this._writableState.destroyed = value;
+  }
+});
\ No newline at end of file
diff --git a/node_modules/readable-stream/lib/_stream_passthrough.js b/node_modules/readable-stream/lib/_stream_passthrough.js
new file mode 100644
index 0000000..24a6bdd
--- /dev/null
+++ b/node_modules/readable-stream/lib/_stream_passthrough.js
@@ -0,0 +1,37 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a passthrough stream.
+// basically just the most minimal sort of Transform stream.
+// Every written chunk gets output as-is.
+
+'use strict';
+
+module.exports = PassThrough;
+var Transform = require('./_stream_transform');
+require('inherits')(PassThrough, Transform);
+function PassThrough(options) {
+  if (!(this instanceof PassThrough)) return new PassThrough(options);
+  Transform.call(this, options);
+}
+PassThrough.prototype._transform = function (chunk, encoding, cb) {
+  cb(null, chunk);
+};
\ No newline at end of file
diff --git a/node_modules/readable-stream/lib/_stream_readable.js b/node_modules/readable-stream/lib/_stream_readable.js
new file mode 100644
index 0000000..df1f608
--- /dev/null
+++ b/node_modules/readable-stream/lib/_stream_readable.js
@@ -0,0 +1,1027 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+'use strict';
+
+module.exports = Readable;
+
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
+
+Readable.ReadableState = ReadableState;
+
+/*<replacement>*/
+var EE = require('events').EventEmitter;
+var EElistenerCount = function EElistenerCount(emitter, type) {
+  return emitter.listeners(type).length;
+};
+/*</replacement>*/
+
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
+
+var Buffer = require('buffer').Buffer;
+var OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+  return Buffer.from(chunk);
+}
+function _isUint8Array(obj) {
+  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+
+/*<replacement>*/
+var debugUtil = require('util');
+var debug;
+if (debugUtil && debugUtil.debuglog) {
+  debug = debugUtil.debuglog('stream');
+} else {
+  debug = function debug() {};
+}
+/*</replacement>*/
+
+var BufferList = require('./internal/streams/buffer_list');
+var destroyImpl = require('./internal/streams/destroy');
+var _require = require('./internal/streams/state'),
+  getHighWaterMark = _require.getHighWaterMark;
+var _require$codes = require('../errors').codes,
+  ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
+  ERR_STREAM_PUSH_AFTER_EOF = _require$codes.ERR_STREAM_PUSH_AFTER_EOF,
+  ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
+  ERR_STREAM_UNSHIFT_AFTER_END_EVENT = _require$codes.ERR_STREAM_UNSHIFT_AFTER_END_EVENT;
+
+// Lazy loaded to improve the startup performance.
+var StringDecoder;
+var createReadableStreamAsyncIterator;
+var from;
+require('inherits')(Readable, Stream);
+var errorOrDestroy = destroyImpl.errorOrDestroy;
+var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
+function prependListener(emitter, event, fn) {
+  // Sadly this is not cacheable as some libraries bundle their own
+  // event emitter implementation with them.
+  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);
+
+  // This is a hack to make sure that our error handler is attached before any
+  // userland ones.  NEVER DO THIS. This is here only because this code needs
+  // to continue to work with older versions of Node.js that do not include
+  // the prependListener() method. The goal is to eventually remove this hack.
+  if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (Array.isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
+}
+function ReadableState(options, stream, isDuplex) {
+  Duplex = Duplex || require('./_stream_duplex');
+  options = options || {};
+
+  // Duplex streams are both readable and writable, but share
+  // the same options object.
+  // However, some cases require setting options to different
+  // values for the readable and the writable sides of the duplex stream.
+  // These options can be provided separately as readableXXX and writableXXX.
+  if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex;
+
+  // object stream flag. Used to make read(n) ignore n and to
+  // make all the buffer merging and length checks go away
+  this.objectMode = !!options.objectMode;
+  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
+
+  // the point at which it stops calling _read() to fill the buffer
+  // Note: 0 is a valid value, means "don't call _read preemptively ever"
+  this.highWaterMark = getHighWaterMark(this, options, 'readableHighWaterMark', isDuplex);
+
+  // A linked list is used to store data chunks instead of an array because the
+  // linked list can remove elements from the beginning faster than
+  // array.shift()
+  this.buffer = new BufferList();
+  this.length = 0;
+  this.pipes = null;
+  this.pipesCount = 0;
+  this.flowing = null;
+  this.ended = false;
+  this.endEmitted = false;
+  this.reading = false;
+
+  // a flag to be able to tell if the event 'readable'/'data' is emitted
+  // immediately, or on a later tick.  We set this to true at first, because
+  // any actions that shouldn't happen until "later" should generally also
+  // not happen before the first read call.
+  this.sync = true;
+
+  // whenever we return null, then we set a flag to say
+  // that we're awaiting a 'readable' event emission.
+  this.needReadable = false;
+  this.emittedReadable = false;
+  this.readableListening = false;
+  this.resumeScheduled = false;
+  this.paused = true;
+
+  // Should close be emitted on destroy. Defaults to true.
+  this.emitClose = options.emitClose !== false;
+
+  // Should .destroy() be called after 'end' (and potentially 'finish')
+  this.autoDestroy = !!options.autoDestroy;
+
+  // has it been destroyed
+  this.destroyed = false;
+
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
+
+  // the number of writers that are awaiting a drain event in .pipe()s
+  this.awaitDrain = 0;
+
+  // if true, a maybeReadMore has been scheduled
+  this.readingMore = false;
+  this.decoder = null;
+  this.encoding = null;
+  if (options.encoding) {
+    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+    this.decoder = new StringDecoder(options.encoding);
+    this.encoding = options.encoding;
+  }
+}
+function Readable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
+  if (!(this instanceof Readable)) return new Readable(options);
+
+  // Checking for a Stream.Duplex instance is faster here instead of inside
+  // the ReadableState constructor, at least with V8 6.5
+  var isDuplex = this instanceof Duplex;
+  this._readableState = new ReadableState(options, this, isDuplex);
+
+  // legacy
+  this.readable = true;
+  if (options) {
+    if (typeof options.read === 'function') this._read = options.read;
+    if (typeof options.destroy === 'function') this._destroy = options.destroy;
+  }
+  Stream.call(this);
+}
+Object.defineProperty(Readable.prototype, 'destroyed', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    if (this._readableState === undefined) {
+      return false;
+    }
+    return this._readableState.destroyed;
+  },
+  set: function set(value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (!this._readableState) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._readableState.destroyed = value;
+  }
+});
+Readable.prototype.destroy = destroyImpl.destroy;
+Readable.prototype._undestroy = destroyImpl.undestroy;
+Readable.prototype._destroy = function (err, cb) {
+  cb(err);
+};
+
+// Manually shove something into the read() buffer.
+// This returns true if the highWaterMark has not been hit yet,
+// similar to how Writable.write() returns true if you should
+// write() some more.
+Readable.prototype.push = function (chunk, encoding) {
+  var state = this._readableState;
+  var skipChunkCheck;
+  if (!state.objectMode) {
+    if (typeof chunk === 'string') {
+      encoding = encoding || state.defaultEncoding;
+      if (encoding !== state.encoding) {
+        chunk = Buffer.from(chunk, encoding);
+        encoding = '';
+      }
+      skipChunkCheck = true;
+    }
+  } else {
+    skipChunkCheck = true;
+  }
+  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
+};
+
+// Unshift should *always* be something directly out of read()
+Readable.prototype.unshift = function (chunk) {
+  return readableAddChunk(this, chunk, null, true, false);
+};
+function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
+  debug('readableAddChunk', chunk);
+  var state = stream._readableState;
+  if (chunk === null) {
+    state.reading = false;
+    onEofChunk(stream, state);
+  } else {
+    var er;
+    if (!skipChunkCheck) er = chunkInvalid(state, chunk);
+    if (er) {
+      errorOrDestroy(stream, er);
+    } else if (state.objectMode || chunk && chunk.length > 0) {
+      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
+        chunk = _uint8ArrayToBuffer(chunk);
+      }
+      if (addToFront) {
+        if (state.endEmitted) errorOrDestroy(stream, new ERR_STREAM_UNSHIFT_AFTER_END_EVENT());else addChunk(stream, state, chunk, true);
+      } else if (state.ended) {
+        errorOrDestroy(stream, new ERR_STREAM_PUSH_AFTER_EOF());
+      } else if (state.destroyed) {
+        return false;
+      } else {
+        state.reading = false;
+        if (state.decoder && !encoding) {
+          chunk = state.decoder.write(chunk);
+          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
+        } else {
+          addChunk(stream, state, chunk, false);
+        }
+      }
+    } else if (!addToFront) {
+      state.reading = false;
+      maybeReadMore(stream, state);
+    }
+  }
+
+  // We can push more data if we are below the highWaterMark.
+  // Also, if we have no data yet, we can stand some more bytes.
+  // This is to work around cases where hwm=0, such as the repl.
+  return !state.ended && (state.length < state.highWaterMark || state.length === 0);
+}
+function addChunk(stream, state, chunk, addToFront) {
+  if (state.flowing && state.length === 0 && !state.sync) {
+    state.awaitDrain = 0;
+    stream.emit('data', chunk);
+  } else {
+    // update the buffer info.
+    state.length += state.objectMode ? 1 : chunk.length;
+    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
+    if (state.needReadable) emitReadable(stream);
+  }
+  maybeReadMore(stream, state);
+}
+function chunkInvalid(state, chunk) {
+  var er;
+  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+    er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer', 'Uint8Array'], chunk);
+  }
+  return er;
+}
+Readable.prototype.isPaused = function () {
+  return this._readableState.flowing === false;
+};
+
+// backwards compatibility.
+Readable.prototype.setEncoding = function (enc) {
+  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+  var decoder = new StringDecoder(enc);
+  this._readableState.decoder = decoder;
+  // If setEncoding(null), decoder.encoding equals utf8
+  this._readableState.encoding = this._readableState.decoder.encoding;
+
+  // Iterate over current buffer to convert already stored Buffers:
+  var p = this._readableState.buffer.head;
+  var content = '';
+  while (p !== null) {
+    content += decoder.write(p.data);
+    p = p.next;
+  }
+  this._readableState.buffer.clear();
+  if (content !== '') this._readableState.buffer.push(content);
+  this._readableState.length = content.length;
+  return this;
+};
+
+// Don't raise the hwm > 1GB
+var MAX_HWM = 0x40000000;
+function computeNewHighWaterMark(n) {
+  if (n >= MAX_HWM) {
+    // TODO(ronag): Throw ERR_VALUE_OUT_OF_RANGE.
+    n = MAX_HWM;
+  } else {
+    // Get the next highest power of 2 to prevent increasing hwm excessively in
+    // tiny amounts
+    n--;
+    n |= n >>> 1;
+    n |= n >>> 2;
+    n |= n >>> 4;
+    n |= n >>> 8;
+    n |= n >>> 16;
+    n++;
+  }
+  return n;
+}
+
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function howMuchToRead(n, state) {
+  if (n <= 0 || state.length === 0 && state.ended) return 0;
+  if (state.objectMode) return 1;
+  if (n !== n) {
+    // Only flow one buffer at a time
+    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
+  }
+  // If we're asking for more than the current hwm, then raise the hwm.
+  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
+  if (n <= state.length) return n;
+  // Don't have enough
+  if (!state.ended) {
+    state.needReadable = true;
+    return 0;
+  }
+  return state.length;
+}
+
+// you can override either this method, or the async _read(n) below.
+Readable.prototype.read = function (n) {
+  debug('read', n);
+  n = parseInt(n, 10);
+  var state = this._readableState;
+  var nOrig = n;
+  if (n !== 0) state.emittedReadable = false;
+
+  // if we're doing read(0) to trigger a readable event, but we
+  // already have a bunch of data in the buffer, then just trigger
+  // the 'readable' event and move on.
+  if (n === 0 && state.needReadable && ((state.highWaterMark !== 0 ? state.length >= state.highWaterMark : state.length > 0) || state.ended)) {
+    debug('read: emitReadable', state.length, state.ended);
+    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
+    return null;
+  }
+  n = howMuchToRead(n, state);
+
+  // if we've ended, and we're now clear, then finish it up.
+  if (n === 0 && state.ended) {
+    if (state.length === 0) endReadable(this);
+    return null;
+  }
+
+  // All the actual chunk generation logic needs to be
+  // *below* the call to _read.  The reason is that in certain
+  // synthetic stream cases, such as passthrough streams, _read
+  // may be a completely synchronous operation which may change
+  // the state of the read buffer, providing enough data when
+  // before there was *not* enough.
+  //
+  // So, the steps are:
+  // 1. Figure out what the state of things will be after we do
+  // a read from the buffer.
+  //
+  // 2. If that resulting state will trigger a _read, then call _read.
+  // Note that this may be asynchronous, or synchronous.  Yes, it is
+  // deeply ugly to write APIs this way, but that still doesn't mean
+  // that the Readable class should behave improperly, as streams are
+  // designed to be sync/async agnostic.
+  // Take note if the _read call is sync or async (ie, if the read call
+  // has returned yet), so that we know whether or not it's safe to emit
+  // 'readable' etc.
+  //
+  // 3. Actually pull the requested chunks out of the buffer and return.
+
+  // if we need a readable event, then we need to do some reading.
+  var doRead = state.needReadable;
+  debug('need readable', doRead);
+
+  // if we currently have less than the highWaterMark, then also read some
+  if (state.length === 0 || state.length - n < state.highWaterMark) {
+    doRead = true;
+    debug('length less than watermark', doRead);
+  }
+
+  // however, if we've ended, then there's no point, and if we're already
+  // reading, then it's unnecessary.
+  if (state.ended || state.reading) {
+    doRead = false;
+    debug('reading or ended', doRead);
+  } else if (doRead) {
+    debug('do read');
+    state.reading = true;
+    state.sync = true;
+    // if the length is currently zero, then we *need* a readable event.
+    if (state.length === 0) state.needReadable = true;
+    // call internal read method
+    this._read(state.highWaterMark);
+    state.sync = false;
+    // If _read pushed data synchronously, then `reading` will be false,
+    // and we need to re-evaluate how much data we can return to the user.
+    if (!state.reading) n = howMuchToRead(nOrig, state);
+  }
+  var ret;
+  if (n > 0) ret = fromList(n, state);else ret = null;
+  if (ret === null) {
+    state.needReadable = state.length <= state.highWaterMark;
+    n = 0;
+  } else {
+    state.length -= n;
+    state.awaitDrain = 0;
+  }
+  if (state.length === 0) {
+    // If we have nothing in the buffer, then we want to know
+    // as soon as we *do* get something into the buffer.
+    if (!state.ended) state.needReadable = true;
+
+    // If we tried to read() past the EOF, then emit end on the next tick.
+    if (nOrig !== n && state.ended) endReadable(this);
+  }
+  if (ret !== null) this.emit('data', ret);
+  return ret;
+};
+function onEofChunk(stream, state) {
+  debug('onEofChunk');
+  if (state.ended) return;
+  if (state.decoder) {
+    var chunk = state.decoder.end();
+    if (chunk && chunk.length) {
+      state.buffer.push(chunk);
+      state.length += state.objectMode ? 1 : chunk.length;
+    }
+  }
+  state.ended = true;
+  if (state.sync) {
+    // if we are sync, wait until next tick to emit the data.
+    // Otherwise we risk emitting data in the flow()
+    // the readable code triggers during a read() call
+    emitReadable(stream);
+  } else {
+    // emit 'readable' now to make sure it gets picked up.
+    state.needReadable = false;
+    if (!state.emittedReadable) {
+      state.emittedReadable = true;
+      emitReadable_(stream);
+    }
+  }
+}
+
+// Don't emit readable right away in sync mode, because this can trigger
+// another read() call => stack overflow.  This way, it might trigger
+// a nextTick recursion warning, but that's not so bad.
+function emitReadable(stream) {
+  var state = stream._readableState;
+  debug('emitReadable', state.needReadable, state.emittedReadable);
+  state.needReadable = false;
+  if (!state.emittedReadable) {
+    debug('emitReadable', state.flowing);
+    state.emittedReadable = true;
+    process.nextTick(emitReadable_, stream);
+  }
+}
+function emitReadable_(stream) {
+  var state = stream._readableState;
+  debug('emitReadable_', state.destroyed, state.length, state.ended);
+  if (!state.destroyed && (state.length || state.ended)) {
+    stream.emit('readable');
+    state.emittedReadable = false;
+  }
+
+  // The stream needs another readable event if
+  // 1. It is not flowing, as the flow mechanism will take
+  //    care of it.
+  // 2. It is not ended.
+  // 3. It is below the highWaterMark, so we can schedule
+  //    another readable later.
+  state.needReadable = !state.flowing && !state.ended && state.length <= state.highWaterMark;
+  flow(stream);
+}
+
+// at this point, the user has presumably seen the 'readable' event,
+// and called read() to consume some data.  that may have triggered
+// in turn another _read(n) call, in which case reading = true if
+// it's in progress.
+// However, if we're not ended, or reading, and the length < hwm,
+// then go ahead and try to read some more preemptively.
+function maybeReadMore(stream, state) {
+  if (!state.readingMore) {
+    state.readingMore = true;
+    process.nextTick(maybeReadMore_, stream, state);
+  }
+}
+function maybeReadMore_(stream, state) {
+  // Attempt to read more data if we should.
+  //
+  // The conditions for reading more data are (one of):
+  // - Not enough data buffered (state.length < state.highWaterMark). The loop
+  //   is responsible for filling the buffer with enough data if such data
+  //   is available. If highWaterMark is 0 and we are not in the flowing mode
+  //   we should _not_ attempt to buffer any extra data. We'll get more data
+  //   when the stream consumer calls read() instead.
+  // - No data in the buffer, and the stream is in flowing mode. In this mode
+  //   the loop below is responsible for ensuring read() is called. Failing to
+  //   call read here would abort the flow and there's no other mechanism for
+  //   continuing the flow if the stream consumer has just subscribed to the
+  //   'data' event.
+  //
+  // In addition to the above conditions to keep reading data, the following
+  // conditions prevent the data from being read:
+  // - The stream has ended (state.ended).
+  // - There is already a pending 'read' operation (state.reading). This is a
+  //   case where the the stream has called the implementation defined _read()
+  //   method, but they are processing the call asynchronously and have _not_
+  //   called push() with new data. In this case we skip performing more
+  //   read()s. The execution ends in this method again after the _read() ends
+  //   up calling push() with more data.
+  while (!state.reading && !state.ended && (state.length < state.highWaterMark || state.flowing && state.length === 0)) {
+    var len = state.length;
+    debug('maybeReadMore read 0');
+    stream.read(0);
+    if (len === state.length)
+      // didn't get any data, stop spinning.
+      break;
+  }
+  state.readingMore = false;
+}
+
+// abstract method.  to be overridden in specific implementation classes.
+// call cb(er, data) where data is <= n in length.
+// for virtual (non-string, non-buffer) streams, "length" is somewhat
+// arbitrary, and perhaps not very meaningful.
+Readable.prototype._read = function (n) {
+  errorOrDestroy(this, new ERR_METHOD_NOT_IMPLEMENTED('_read()'));
+};
+Readable.prototype.pipe = function (dest, pipeOpts) {
+  var src = this;
+  var state = this._readableState;
+  switch (state.pipesCount) {
+    case 0:
+      state.pipes = dest;
+      break;
+    case 1:
+      state.pipes = [state.pipes, dest];
+      break;
+    default:
+      state.pipes.push(dest);
+      break;
+  }
+  state.pipesCount += 1;
+  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
+  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
+  var endFn = doEnd ? onend : unpipe;
+  if (state.endEmitted) process.nextTick(endFn);else src.once('end', endFn);
+  dest.on('unpipe', onunpipe);
+  function onunpipe(readable, unpipeInfo) {
+    debug('onunpipe');
+    if (readable === src) {
+      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
+        unpipeInfo.hasUnpiped = true;
+        cleanup();
+      }
+    }
+  }
+  function onend() {
+    debug('onend');
+    dest.end();
+  }
+
+  // when the dest drains, it reduces the awaitDrain counter
+  // on the source.  This would be more elegant with a .once()
+  // handler in flow(), but adding and removing repeatedly is
+  // too slow.
+  var ondrain = pipeOnDrain(src);
+  dest.on('drain', ondrain);
+  var cleanedUp = false;
+  function cleanup() {
+    debug('cleanup');
+    // cleanup event handlers once the pipe is broken
+    dest.removeListener('close', onclose);
+    dest.removeListener('finish', onfinish);
+    dest.removeListener('drain', ondrain);
+    dest.removeListener('error', onerror);
+    dest.removeListener('unpipe', onunpipe);
+    src.removeListener('end', onend);
+    src.removeListener('end', unpipe);
+    src.removeListener('data', ondata);
+    cleanedUp = true;
+
+    // if the reader is waiting for a drain event from this
+    // specific writer, then it would cause it to never start
+    // flowing again.
+    // So, if this is awaiting a drain, then we just call it now.
+    // If we don't know, then assume that we are waiting for one.
+    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
+  }
+  src.on('data', ondata);
+  function ondata(chunk) {
+    debug('ondata');
+    var ret = dest.write(chunk);
+    debug('dest.write', ret);
+    if (ret === false) {
+      // If the user unpiped during `dest.write()`, it is possible
+      // to get stuck in a permanently paused state if that write
+      // also returned false.
+      // => Check whether `dest` is still a piping destination.
+      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
+        debug('false write response, pause', state.awaitDrain);
+        state.awaitDrain++;
+      }
+      src.pause();
+    }
+  }
+
+  // if the dest has an error, then stop piping into it.
+  // however, don't suppress the throwing behavior for this.
+  function onerror(er) {
+    debug('onerror', er);
+    unpipe();
+    dest.removeListener('error', onerror);
+    if (EElistenerCount(dest, 'error') === 0) errorOrDestroy(dest, er);
+  }
+
+  // Make sure our error handler is attached before userland ones.
+  prependListener(dest, 'error', onerror);
+
+  // Both close and finish should trigger unpipe, but only once.
+  function onclose() {
+    dest.removeListener('finish', onfinish);
+    unpipe();
+  }
+  dest.once('close', onclose);
+  function onfinish() {
+    debug('onfinish');
+    dest.removeListener('close', onclose);
+    unpipe();
+  }
+  dest.once('finish', onfinish);
+  function unpipe() {
+    debug('unpipe');
+    src.unpipe(dest);
+  }
+
+  // tell the dest that it's being piped to
+  dest.emit('pipe', src);
+
+  // start the flow if it hasn't been started already.
+  if (!state.flowing) {
+    debug('pipe resume');
+    src.resume();
+  }
+  return dest;
+};
+function pipeOnDrain(src) {
+  return function pipeOnDrainFunctionResult() {
+    var state = src._readableState;
+    debug('pipeOnDrain', state.awaitDrain);
+    if (state.awaitDrain) state.awaitDrain--;
+    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
+      state.flowing = true;
+      flow(src);
+    }
+  };
+}
+Readable.prototype.unpipe = function (dest) {
+  var state = this._readableState;
+  var unpipeInfo = {
+    hasUnpiped: false
+  };
+
+  // if we're not piping anywhere, then do nothing.
+  if (state.pipesCount === 0) return this;
+
+  // just one destination.  most common case.
+  if (state.pipesCount === 1) {
+    // passed in one, but it's not the right one.
+    if (dest && dest !== state.pipes) return this;
+    if (!dest) dest = state.pipes;
+
+    // got a match.
+    state.pipes = null;
+    state.pipesCount = 0;
+    state.flowing = false;
+    if (dest) dest.emit('unpipe', this, unpipeInfo);
+    return this;
+  }
+
+  // slow case. multiple pipe destinations.
+
+  if (!dest) {
+    // remove all.
+    var dests = state.pipes;
+    var len = state.pipesCount;
+    state.pipes = null;
+    state.pipesCount = 0;
+    state.flowing = false;
+    for (var i = 0; i < len; i++) dests[i].emit('unpipe', this, {
+      hasUnpiped: false
+    });
+    return this;
+  }
+
+  // try to find the right one.
+  var index = indexOf(state.pipes, dest);
+  if (index === -1) return this;
+  state.pipes.splice(index, 1);
+  state.pipesCount -= 1;
+  if (state.pipesCount === 1) state.pipes = state.pipes[0];
+  dest.emit('unpipe', this, unpipeInfo);
+  return this;
+};
+
+// set up data events if they are asked for
+// Ensure readable listeners eventually get something
+Readable.prototype.on = function (ev, fn) {
+  var res = Stream.prototype.on.call(this, ev, fn);
+  var state = this._readableState;
+  if (ev === 'data') {
+    // update readableListening so that resume() may be a no-op
+    // a few lines down. This is needed to support once('readable').
+    state.readableListening = this.listenerCount('readable') > 0;
+
+    // Try start flowing on next tick if stream isn't explicitly paused
+    if (state.flowing !== false) this.resume();
+  } else if (ev === 'readable') {
+    if (!state.endEmitted && !state.readableListening) {
+      state.readableListening = state.needReadable = true;
+      state.flowing = false;
+      state.emittedReadable = false;
+      debug('on readable', state.length, state.reading);
+      if (state.length) {
+        emitReadable(this);
+      } else if (!state.reading) {
+        process.nextTick(nReadingNextTick, this);
+      }
+    }
+  }
+  return res;
+};
+Readable.prototype.addListener = Readable.prototype.on;
+Readable.prototype.removeListener = function (ev, fn) {
+  var res = Stream.prototype.removeListener.call(this, ev, fn);
+  if (ev === 'readable') {
+    // We need to check if there is someone still listening to
+    // readable and reset the state. However this needs to happen
+    // after readable has been emitted but before I/O (nextTick) to
+    // support once('readable', fn) cycles. This means that calling
+    // resume within the same tick will have no
+    // effect.
+    process.nextTick(updateReadableListening, this);
+  }
+  return res;
+};
+Readable.prototype.removeAllListeners = function (ev) {
+  var res = Stream.prototype.removeAllListeners.apply(this, arguments);
+  if (ev === 'readable' || ev === undefined) {
+    // We need to check if there is someone still listening to
+    // readable and reset the state. However this needs to happen
+    // after readable has been emitted but before I/O (nextTick) to
+    // support once('readable', fn) cycles. This means that calling
+    // resume within the same tick will have no
+    // effect.
+    process.nextTick(updateReadableListening, this);
+  }
+  return res;
+};
+function updateReadableListening(self) {
+  var state = self._readableState;
+  state.readableListening = self.listenerCount('readable') > 0;
+  if (state.resumeScheduled && !state.paused) {
+    // flowing needs to be set to true now, otherwise
+    // the upcoming resume will not flow.
+    state.flowing = true;
+
+    // crude way to check if we should resume
+  } else if (self.listenerCount('data') > 0) {
+    self.resume();
+  }
+}
+function nReadingNextTick(self) {
+  debug('readable nexttick read 0');
+  self.read(0);
+}
+
+// pause() and resume() are remnants of the legacy readable stream API
+// If the user uses them, then switch into old mode.
+Readable.prototype.resume = function () {
+  var state = this._readableState;
+  if (!state.flowing) {
+    debug('resume');
+    // we flow only if there is no one listening
+    // for readable, but we still have to call
+    // resume()
+    state.flowing = !state.readableListening;
+    resume(this, state);
+  }
+  state.paused = false;
+  return this;
+};
+function resume(stream, state) {
+  if (!state.resumeScheduled) {
+    state.resumeScheduled = true;
+    process.nextTick(resume_, stream, state);
+  }
+}
+function resume_(stream, state) {
+  debug('resume', state.reading);
+  if (!state.reading) {
+    stream.read(0);
+  }
+  state.resumeScheduled = false;
+  stream.emit('resume');
+  flow(stream);
+  if (state.flowing && !state.reading) stream.read(0);
+}
+Readable.prototype.pause = function () {
+  debug('call pause flowing=%j', this._readableState.flowing);
+  if (this._readableState.flowing !== false) {
+    debug('pause');
+    this._readableState.flowing = false;
+    this.emit('pause');
+  }
+  this._readableState.paused = true;
+  return this;
+};
+function flow(stream) {
+  var state = stream._readableState;
+  debug('flow', state.flowing);
+  while (state.flowing && stream.read() !== null);
+}
+
+// wrap an old-style stream as the async data source.
+// This is *not* part of the readable stream interface.
+// It is an ugly unfortunate mess of history.
+Readable.prototype.wrap = function (stream) {
+  var _this = this;
+  var state = this._readableState;
+  var paused = false;
+  stream.on('end', function () {
+    debug('wrapped end');
+    if (state.decoder && !state.ended) {
+      var chunk = state.decoder.end();
+      if (chunk && chunk.length) _this.push(chunk);
+    }
+    _this.push(null);
+  });
+  stream.on('data', function (chunk) {
+    debug('wrapped data');
+    if (state.decoder) chunk = state.decoder.write(chunk);
+
+    // don't skip over falsy values in objectMode
+    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
+    var ret = _this.push(chunk);
+    if (!ret) {
+      paused = true;
+      stream.pause();
+    }
+  });
+
+  // proxy all the other methods.
+  // important when wrapping filters and duplexes.
+  for (var i in stream) {
+    if (this[i] === undefined && typeof stream[i] === 'function') {
+      this[i] = function methodWrap(method) {
+        return function methodWrapReturnFunction() {
+          return stream[method].apply(stream, arguments);
+        };
+      }(i);
+    }
+  }
+
+  // proxy certain important events.
+  for (var n = 0; n < kProxyEvents.length; n++) {
+    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
+  }
+
+  // when we try to consume some more bytes, simply unpause the
+  // underlying stream.
+  this._read = function (n) {
+    debug('wrapped _read', n);
+    if (paused) {
+      paused = false;
+      stream.resume();
+    }
+  };
+  return this;
+};
+if (typeof Symbol === 'function') {
+  Readable.prototype[Symbol.asyncIterator] = function () {
+    if (createReadableStreamAsyncIterator === undefined) {
+      createReadableStreamAsyncIterator = require('./internal/streams/async_iterator');
+    }
+    return createReadableStreamAsyncIterator(this);
+  };
+}
+Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._readableState.highWaterMark;
+  }
+});
+Object.defineProperty(Readable.prototype, 'readableBuffer', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._readableState && this._readableState.buffer;
+  }
+});
+Object.defineProperty(Readable.prototype, 'readableFlowing', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._readableState.flowing;
+  },
+  set: function set(state) {
+    if (this._readableState) {
+      this._readableState.flowing = state;
+    }
+  }
+});
+
+// exposed for testing purposes only.
+Readable._fromList = fromList;
+Object.defineProperty(Readable.prototype, 'readableLength', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._readableState.length;
+  }
+});
+
+// Pluck off n bytes from an array of buffers.
+// Length is the combined lengths of all the buffers in the list.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function fromList(n, state) {
+  // nothing buffered
+  if (state.length === 0) return null;
+  var ret;
+  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
+    // read it all, truncate the list
+    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.first();else ret = state.buffer.concat(state.length);
+    state.buffer.clear();
+  } else {
+    // read part of list
+    ret = state.buffer.consume(n, state.decoder);
+  }
+  return ret;
+}
+function endReadable(stream) {
+  var state = stream._readableState;
+  debug('endReadable', state.endEmitted);
+  if (!state.endEmitted) {
+    state.ended = true;
+    process.nextTick(endReadableNT, state, stream);
+  }
+}
+function endReadableNT(state, stream) {
+  debug('endReadableNT', state.endEmitted, state.length);
+
+  // Check that we didn't get one last unshift.
+  if (!state.endEmitted && state.length === 0) {
+    state.endEmitted = true;
+    stream.readable = false;
+    stream.emit('end');
+    if (state.autoDestroy) {
+      // In case of duplex streams we need a way to detect
+      // if the writable side is ready for autoDestroy as well
+      var wState = stream._writableState;
+      if (!wState || wState.autoDestroy && wState.finished) {
+        stream.destroy();
+      }
+    }
+  }
+}
+if (typeof Symbol === 'function') {
+  Readable.from = function (iterable, opts) {
+    if (from === undefined) {
+      from = require('./internal/streams/from');
+    }
+    return from(Readable, iterable, opts);
+  };
+}
+function indexOf(xs, x) {
+  for (var i = 0, l = xs.length; i < l; i++) {
+    if (xs[i] === x) return i;
+  }
+  return -1;
+}
\ No newline at end of file
diff --git a/node_modules/readable-stream/lib/_stream_transform.js b/node_modules/readable-stream/lib/_stream_transform.js
new file mode 100644
index 0000000..1ccb715
--- /dev/null
+++ b/node_modules/readable-stream/lib/_stream_transform.js
@@ -0,0 +1,190 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a transform stream is a readable/writable stream where you do
+// something with the data.  Sometimes it's called a "filter",
+// but that's not a great name for it, since that implies a thing where
+// some bits pass through, and others are simply ignored.  (That would
+// be a valid example of a transform, of course.)
+//
+// While the output is causally related to the input, it's not a
+// necessarily symmetric or synchronous transformation.  For example,
+// a zlib stream might take multiple plain-text writes(), and then
+// emit a single compressed chunk some time in the future.
+//
+// Here's how this works:
+//
+// The Transform stream has all the aspects of the readable and writable
+// stream classes.  When you write(chunk), that calls _write(chunk,cb)
+// internally, and returns false if there's a lot of pending writes
+// buffered up.  When you call read(), that calls _read(n) until
+// there's enough pending readable data buffered up.
+//
+// In a transform stream, the written data is placed in a buffer.  When
+// _read(n) is called, it transforms the queued up data, calling the
+// buffered _write cb's as it consumes chunks.  If consuming a single
+// written chunk would result in multiple output chunks, then the first
+// outputted bit calls the readcb, and subsequent chunks just go into
+// the read buffer, and will cause it to emit 'readable' if necessary.
+//
+// This way, back-pressure is actually determined by the reading side,
+// since _read has to be called to start processing a new chunk.  However,
+// a pathological inflate type of transform can cause excessive buffering
+// here.  For example, imagine a stream where every byte of input is
+// interpreted as an integer from 0-255, and then results in that many
+// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
+// 1kb of data being output.  In this case, you could write a very small
+// amount of input, and end up with a very large amount of output.  In
+// such a pathological inflating mechanism, there'd be no way to tell
+// the system to stop doing the transform.  A single 4MB write could
+// cause the system to run out of memory.
+//
+// However, even in such a pathological case, only a single written chunk
+// would be consumed, and then the rest would wait (un-transformed) until
+// the results of the previous transformed chunk were consumed.
+
+'use strict';
+
+module.exports = Transform;
+var _require$codes = require('../errors').codes,
+  ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
+  ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
+  ERR_TRANSFORM_ALREADY_TRANSFORMING = _require$codes.ERR_TRANSFORM_ALREADY_TRANSFORMING,
+  ERR_TRANSFORM_WITH_LENGTH_0 = _require$codes.ERR_TRANSFORM_WITH_LENGTH_0;
+var Duplex = require('./_stream_duplex');
+require('inherits')(Transform, Duplex);
+function afterTransform(er, data) {
+  var ts = this._transformState;
+  ts.transforming = false;
+  var cb = ts.writecb;
+  if (cb === null) {
+    return this.emit('error', new ERR_MULTIPLE_CALLBACK());
+  }
+  ts.writechunk = null;
+  ts.writecb = null;
+  if (data != null)
+    // single equals check for both `null` and `undefined`
+    this.push(data);
+  cb(er);
+  var rs = this._readableState;
+  rs.reading = false;
+  if (rs.needReadable || rs.length < rs.highWaterMark) {
+    this._read(rs.highWaterMark);
+  }
+}
+function Transform(options) {
+  if (!(this instanceof Transform)) return new Transform(options);
+  Duplex.call(this, options);
+  this._transformState = {
+    afterTransform: afterTransform.bind(this),
+    needTransform: false,
+    transforming: false,
+    writecb: null,
+    writechunk: null,
+    writeencoding: null
+  };
+
+  // start out asking for a readable event once data is transformed.
+  this._readableState.needReadable = true;
+
+  // we have implemented the _read method, and done the other things
+  // that Readable wants before the first _read call, so unset the
+  // sync guard flag.
+  this._readableState.sync = false;
+  if (options) {
+    if (typeof options.transform === 'function') this._transform = options.transform;
+    if (typeof options.flush === 'function') this._flush = options.flush;
+  }
+
+  // When the writable side finishes, then flush out anything remaining.
+  this.on('prefinish', prefinish);
+}
+function prefinish() {
+  var _this = this;
+  if (typeof this._flush === 'function' && !this._readableState.destroyed) {
+    this._flush(function (er, data) {
+      done(_this, er, data);
+    });
+  } else {
+    done(this, null, null);
+  }
+}
+Transform.prototype.push = function (chunk, encoding) {
+  this._transformState.needTransform = false;
+  return Duplex.prototype.push.call(this, chunk, encoding);
+};
+
+// This is the part where you do stuff!
+// override this function in implementation classes.
+// 'chunk' is an input chunk.
+//
+// Call `push(newChunk)` to pass along transformed output
+// to the readable side.  You may call 'push' zero or more times.
+//
+// Call `cb(err)` when you are done with this chunk.  If you pass
+// an error, then that'll put the hurt on the whole operation.  If you
+// never call cb(), then you'll never get another chunk.
+Transform.prototype._transform = function (chunk, encoding, cb) {
+  cb(new ERR_METHOD_NOT_IMPLEMENTED('_transform()'));
+};
+Transform.prototype._write = function (chunk, encoding, cb) {
+  var ts = this._transformState;
+  ts.writecb = cb;
+  ts.writechunk = chunk;
+  ts.writeencoding = encoding;
+  if (!ts.transforming) {
+    var rs = this._readableState;
+    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
+  }
+};
+
+// Doesn't matter what the args are here.
+// _transform does all the work.
+// That we got here means that the readable side wants more data.
+Transform.prototype._read = function (n) {
+  var ts = this._transformState;
+  if (ts.writechunk !== null && !ts.transforming) {
+    ts.transforming = true;
+    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
+  } else {
+    // mark that we need a transform, so that any data that comes in
+    // will get processed, now that we've asked for it.
+    ts.needTransform = true;
+  }
+};
+Transform.prototype._destroy = function (err, cb) {
+  Duplex.prototype._destroy.call(this, err, function (err2) {
+    cb(err2);
+  });
+};
+function done(stream, er, data) {
+  if (er) return stream.emit('error', er);
+  if (data != null)
+    // single equals check for both `null` and `undefined`
+    stream.push(data);
+
+  // TODO(BridgeAR): Write a test for these two error cases
+  // if there's nothing in the write buffer, then that means
+  // that nothing more will ever be provided
+  if (stream._writableState.length) throw new ERR_TRANSFORM_WITH_LENGTH_0();
+  if (stream._transformState.transforming) throw new ERR_TRANSFORM_ALREADY_TRANSFORMING();
+  return stream.push(null);
+}
\ No newline at end of file
diff --git a/node_modules/readable-stream/lib/_stream_writable.js b/node_modules/readable-stream/lib/_stream_writable.js
new file mode 100644
index 0000000..292415e
--- /dev/null
+++ b/node_modules/readable-stream/lib/_stream_writable.js
@@ -0,0 +1,641 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// A bit simpler than readable streams.
+// Implement an async ._write(chunk, encoding, cb), and it'll handle all
+// the drain event emission and buffering.
+
+'use strict';
+
+module.exports = Writable;
+
+/* <replacement> */
+function WriteReq(chunk, encoding, cb) {
+  this.chunk = chunk;
+  this.encoding = encoding;
+  this.callback = cb;
+  this.next = null;
+}
+
+// It seems a linked list but it is not
+// there will be only 2 of these for each stream
+function CorkedRequest(state) {
+  var _this = this;
+  this.next = null;
+  this.entry = null;
+  this.finish = function () {
+    onCorkedFinish(_this, state);
+  };
+}
+/* </replacement> */
+
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
+
+Writable.WritableState = WritableState;
+
+/*<replacement>*/
+var internalUtil = {
+  deprecate: require('util-deprecate')
+};
+/*</replacement>*/
+
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
+
+var Buffer = require('buffer').Buffer;
+var OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+  return Buffer.from(chunk);
+}
+function _isUint8Array(obj) {
+  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+var destroyImpl = require('./internal/streams/destroy');
+var _require = require('./internal/streams/state'),
+  getHighWaterMark = _require.getHighWaterMark;
+var _require$codes = require('../errors').codes,
+  ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
+  ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
+  ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
+  ERR_STREAM_CANNOT_PIPE = _require$codes.ERR_STREAM_CANNOT_PIPE,
+  ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED,
+  ERR_STREAM_NULL_VALUES = _require$codes.ERR_STREAM_NULL_VALUES,
+  ERR_STREAM_WRITE_AFTER_END = _require$codes.ERR_STREAM_WRITE_AFTER_END,
+  ERR_UNKNOWN_ENCODING = _require$codes.ERR_UNKNOWN_ENCODING;
+var errorOrDestroy = destroyImpl.errorOrDestroy;
+require('inherits')(Writable, Stream);
+function nop() {}
+function WritableState(options, stream, isDuplex) {
+  Duplex = Duplex || require('./_stream_duplex');
+  options = options || {};
+
+  // Duplex streams are both readable and writable, but share
+  // the same options object.
+  // However, some cases require setting options to different
+  // values for the readable and the writable sides of the duplex stream,
+  // e.g. options.readableObjectMode vs. options.writableObjectMode, etc.
+  if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex;
+
+  // object stream flag to indicate whether or not this stream
+  // contains buffers or objects.
+  this.objectMode = !!options.objectMode;
+  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
+
+  // the point at which write() starts returning false
+  // Note: 0 is a valid value, means that we always return false if
+  // the entire buffer is not flushed immediately on write()
+  this.highWaterMark = getHighWaterMark(this, options, 'writableHighWaterMark', isDuplex);
+
+  // if _final has been called
+  this.finalCalled = false;
+
+  // drain event flag.
+  this.needDrain = false;
+  // at the start of calling end()
+  this.ending = false;
+  // when end() has been called, and returned
+  this.ended = false;
+  // when 'finish' is emitted
+  this.finished = false;
+
+  // has it been destroyed
+  this.destroyed = false;
+
+  // should we decode strings into buffers before passing to _write?
+  // this is here so that some node-core streams can optimize string
+  // handling at a lower level.
+  var noDecode = options.decodeStrings === false;
+  this.decodeStrings = !noDecode;
+
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
+
+  // not an actual buffer we keep track of, but a measurement
+  // of how much we're waiting to get pushed to some underlying
+  // socket or file.
+  this.length = 0;
+
+  // a flag to see when we're in the middle of a write.
+  this.writing = false;
+
+  // when true all writes will be buffered until .uncork() call
+  this.corked = 0;
+
+  // a flag to be able to tell if the onwrite cb is called immediately,
+  // or on a later tick.  We set this to true at first, because any
+  // actions that shouldn't happen until "later" should generally also
+  // not happen before the first write call.
+  this.sync = true;
+
+  // a flag to know if we're processing previously buffered items, which
+  // may call the _write() callback in the same tick, so that we don't
+  // end up in an overlapped onwrite situation.
+  this.bufferProcessing = false;
+
+  // the callback that's passed to _write(chunk,cb)
+  this.onwrite = function (er) {
+    onwrite(stream, er);
+  };
+
+  // the callback that the user supplies to write(chunk,encoding,cb)
+  this.writecb = null;
+
+  // the amount that is being written when _write is called.
+  this.writelen = 0;
+  this.bufferedRequest = null;
+  this.lastBufferedRequest = null;
+
+  // number of pending user-supplied write callbacks
+  // this must be 0 before 'finish' can be emitted
+  this.pendingcb = 0;
+
+  // emit prefinish if the only thing we're waiting for is _write cbs
+  // This is relevant for synchronous Transform streams
+  this.prefinished = false;
+
+  // True if the error was already emitted and should not be thrown again
+  this.errorEmitted = false;
+
+  // Should close be emitted on destroy. Defaults to true.
+  this.emitClose = options.emitClose !== false;
+
+  // Should .destroy() be called after 'finish' (and potentially 'end')
+  this.autoDestroy = !!options.autoDestroy;
+
+  // count buffered requests
+  this.bufferedRequestCount = 0;
+
+  // allocate the first CorkedRequest, there is always
+  // one allocated and free to use, and we maintain at most two
+  this.corkedRequestsFree = new CorkedRequest(this);
+}
+WritableState.prototype.getBuffer = function getBuffer() {
+  var current = this.bufferedRequest;
+  var out = [];
+  while (current) {
+    out.push(current);
+    current = current.next;
+  }
+  return out;
+};
+(function () {
+  try {
+    Object.defineProperty(WritableState.prototype, 'buffer', {
+      get: internalUtil.deprecate(function writableStateBufferGetter() {
+        return this.getBuffer();
+      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
+    });
+  } catch (_) {}
+})();
+
+// Test _writableState for inheritance to account for Duplex streams,
+// whose prototype chain only points to Readable.
+var realHasInstance;
+if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
+  realHasInstance = Function.prototype[Symbol.hasInstance];
+  Object.defineProperty(Writable, Symbol.hasInstance, {
+    value: function value(object) {
+      if (realHasInstance.call(this, object)) return true;
+      if (this !== Writable) return false;
+      return object && object._writableState instanceof WritableState;
+    }
+  });
+} else {
+  realHasInstance = function realHasInstance(object) {
+    return object instanceof this;
+  };
+}
+function Writable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
+
+  // Writable ctor is applied to Duplexes, too.
+  // `realHasInstance` is necessary because using plain `instanceof`
+  // would return false, as no `_writableState` property is attached.
+
+  // Trying to use the custom `instanceof` for Writable here will also break the
+  // Node.js LazyTransform implementation, which has a non-trivial getter for
+  // `_writableState` that would lead to infinite recursion.
+
+  // Checking for a Stream.Duplex instance is faster here instead of inside
+  // the WritableState constructor, at least with V8 6.5
+  var isDuplex = this instanceof Duplex;
+  if (!isDuplex && !realHasInstance.call(Writable, this)) return new Writable(options);
+  this._writableState = new WritableState(options, this, isDuplex);
+
+  // legacy.
+  this.writable = true;
+  if (options) {
+    if (typeof options.write === 'function') this._write = options.write;
+    if (typeof options.writev === 'function') this._writev = options.writev;
+    if (typeof options.destroy === 'function') this._destroy = options.destroy;
+    if (typeof options.final === 'function') this._final = options.final;
+  }
+  Stream.call(this);
+}
+
+// Otherwise people can pipe Writable streams, which is just wrong.
+Writable.prototype.pipe = function () {
+  errorOrDestroy(this, new ERR_STREAM_CANNOT_PIPE());
+};
+function writeAfterEnd(stream, cb) {
+  var er = new ERR_STREAM_WRITE_AFTER_END();
+  // TODO: defer error events consistently everywhere, not just the cb
+  errorOrDestroy(stream, er);
+  process.nextTick(cb, er);
+}
+
+// Checks that a user-supplied chunk is valid, especially for the particular
+// mode the stream is in. Currently this means that `null` is never accepted
+// and undefined/non-string values are only allowed in object mode.
+function validChunk(stream, state, chunk, cb) {
+  var er;
+  if (chunk === null) {
+    er = new ERR_STREAM_NULL_VALUES();
+  } else if (typeof chunk !== 'string' && !state.objectMode) {
+    er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer'], chunk);
+  }
+  if (er) {
+    errorOrDestroy(stream, er);
+    process.nextTick(cb, er);
+    return false;
+  }
+  return true;
+}
+Writable.prototype.write = function (chunk, encoding, cb) {
+  var state = this._writableState;
+  var ret = false;
+  var isBuf = !state.objectMode && _isUint8Array(chunk);
+  if (isBuf && !Buffer.isBuffer(chunk)) {
+    chunk = _uint8ArrayToBuffer(chunk);
+  }
+  if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
+  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
+  if (typeof cb !== 'function') cb = nop;
+  if (state.ending) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
+    state.pendingcb++;
+    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
+  }
+  return ret;
+};
+Writable.prototype.cork = function () {
+  this._writableState.corked++;
+};
+Writable.prototype.uncork = function () {
+  var state = this._writableState;
+  if (state.corked) {
+    state.corked--;
+    if (!state.writing && !state.corked && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
+  }
+};
+Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
+  // node::ParseEncoding() requires lower case.
+  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
+  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new ERR_UNKNOWN_ENCODING(encoding);
+  this._writableState.defaultEncoding = encoding;
+  return this;
+};
+Object.defineProperty(Writable.prototype, 'writableBuffer', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._writableState && this._writableState.getBuffer();
+  }
+});
+function decodeChunk(state, chunk, encoding) {
+  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
+    chunk = Buffer.from(chunk, encoding);
+  }
+  return chunk;
+}
+Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._writableState.highWaterMark;
+  }
+});
+
+// if we're already writing something, then just put this
+// in the queue, and wait our turn.  Otherwise, call _write
+// If we return false, then we need a drain event, so set that flag.
+function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
+  if (!isBuf) {
+    var newChunk = decodeChunk(state, chunk, encoding);
+    if (chunk !== newChunk) {
+      isBuf = true;
+      encoding = 'buffer';
+      chunk = newChunk;
+    }
+  }
+  var len = state.objectMode ? 1 : chunk.length;
+  state.length += len;
+  var ret = state.length < state.highWaterMark;
+  // we must ensure that previous needDrain will not be reset to false.
+  if (!ret) state.needDrain = true;
+  if (state.writing || state.corked) {
+    var last = state.lastBufferedRequest;
+    state.lastBufferedRequest = {
+      chunk: chunk,
+      encoding: encoding,
+      isBuf: isBuf,
+      callback: cb,
+      next: null
+    };
+    if (last) {
+      last.next = state.lastBufferedRequest;
+    } else {
+      state.bufferedRequest = state.lastBufferedRequest;
+    }
+    state.bufferedRequestCount += 1;
+  } else {
+    doWrite(stream, state, false, len, chunk, encoding, cb);
+  }
+  return ret;
+}
+function doWrite(stream, state, writev, len, chunk, encoding, cb) {
+  state.writelen = len;
+  state.writecb = cb;
+  state.writing = true;
+  state.sync = true;
+  if (state.destroyed) state.onwrite(new ERR_STREAM_DESTROYED('write'));else if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
+  state.sync = false;
+}
+function onwriteError(stream, state, sync, er, cb) {
+  --state.pendingcb;
+  if (sync) {
+    // defer the callback if we are being called synchronously
+    // to avoid piling up things on the stack
+    process.nextTick(cb, er);
+    // this can emit finish, and it will always happen
+    // after error
+    process.nextTick(finishMaybe, stream, state);
+    stream._writableState.errorEmitted = true;
+    errorOrDestroy(stream, er);
+  } else {
+    // the caller expect this to happen before if
+    // it is async
+    cb(er);
+    stream._writableState.errorEmitted = true;
+    errorOrDestroy(stream, er);
+    // this can emit finish, but finish must
+    // always follow error
+    finishMaybe(stream, state);
+  }
+}
+function onwriteStateUpdate(state) {
+  state.writing = false;
+  state.writecb = null;
+  state.length -= state.writelen;
+  state.writelen = 0;
+}
+function onwrite(stream, er) {
+  var state = stream._writableState;
+  var sync = state.sync;
+  var cb = state.writecb;
+  if (typeof cb !== 'function') throw new ERR_MULTIPLE_CALLBACK();
+  onwriteStateUpdate(state);
+  if (er) onwriteError(stream, state, sync, er, cb);else {
+    // Check if we're actually ready to finish, but don't emit yet
+    var finished = needFinish(state) || stream.destroyed;
+    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
+      clearBuffer(stream, state);
+    }
+    if (sync) {
+      process.nextTick(afterWrite, stream, state, finished, cb);
+    } else {
+      afterWrite(stream, state, finished, cb);
+    }
+  }
+}
+function afterWrite(stream, state, finished, cb) {
+  if (!finished) onwriteDrain(stream, state);
+  state.pendingcb--;
+  cb();
+  finishMaybe(stream, state);
+}
+
+// Must force callback to be called on nextTick, so that we don't
+// emit 'drain' before the write() consumer gets the 'false' return
+// value, and has a chance to attach a 'drain' listener.
+function onwriteDrain(stream, state) {
+  if (state.length === 0 && state.needDrain) {
+    state.needDrain = false;
+    stream.emit('drain');
+  }
+}
+
+// if there's something in the buffer waiting, then process it
+function clearBuffer(stream, state) {
+  state.bufferProcessing = true;
+  var entry = state.bufferedRequest;
+  if (stream._writev && entry && entry.next) {
+    // Fast case, write everything using _writev()
+    var l = state.bufferedRequestCount;
+    var buffer = new Array(l);
+    var holder = state.corkedRequestsFree;
+    holder.entry = entry;
+    var count = 0;
+    var allBuffers = true;
+    while (entry) {
+      buffer[count] = entry;
+      if (!entry.isBuf) allBuffers = false;
+      entry = entry.next;
+      count += 1;
+    }
+    buffer.allBuffers = allBuffers;
+    doWrite(stream, state, true, state.length, buffer, '', holder.finish);
+
+    // doWrite is almost always async, defer these to save a bit of time
+    // as the hot path ends with doWrite
+    state.pendingcb++;
+    state.lastBufferedRequest = null;
+    if (holder.next) {
+      state.corkedRequestsFree = holder.next;
+      holder.next = null;
+    } else {
+      state.corkedRequestsFree = new CorkedRequest(state);
+    }
+    state.bufferedRequestCount = 0;
+  } else {
+    // Slow case, write chunks one-by-one
+    while (entry) {
+      var chunk = entry.chunk;
+      var encoding = entry.encoding;
+      var cb = entry.callback;
+      var len = state.objectMode ? 1 : chunk.length;
+      doWrite(stream, state, false, len, chunk, encoding, cb);
+      entry = entry.next;
+      state.bufferedRequestCount--;
+      // if we didn't call the onwrite immediately, then
+      // it means that we need to wait until it does.
+      // also, that means that the chunk and cb are currently
+      // being processed, so move the buffer counter past them.
+      if (state.writing) {
+        break;
+      }
+    }
+    if (entry === null) state.lastBufferedRequest = null;
+  }
+  state.bufferedRequest = entry;
+  state.bufferProcessing = false;
+}
+Writable.prototype._write = function (chunk, encoding, cb) {
+  cb(new ERR_METHOD_NOT_IMPLEMENTED('_write()'));
+};
+Writable.prototype._writev = null;
+Writable.prototype.end = function (chunk, encoding, cb) {
+  var state = this._writableState;
+  if (typeof chunk === 'function') {
+    cb = chunk;
+    chunk = null;
+    encoding = null;
+  } else if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
+  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
+
+  // .end() fully uncorks
+  if (state.corked) {
+    state.corked = 1;
+    this.uncork();
+  }
+
+  // ignore unnecessary end() calls.
+  if (!state.ending) endWritable(this, state, cb);
+  return this;
+};
+Object.defineProperty(Writable.prototype, 'writableLength', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._writableState.length;
+  }
+});
+function needFinish(state) {
+  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
+}
+function callFinal(stream, state) {
+  stream._final(function (err) {
+    state.pendingcb--;
+    if (err) {
+      errorOrDestroy(stream, err);
+    }
+    state.prefinished = true;
+    stream.emit('prefinish');
+    finishMaybe(stream, state);
+  });
+}
+function prefinish(stream, state) {
+  if (!state.prefinished && !state.finalCalled) {
+    if (typeof stream._final === 'function' && !state.destroyed) {
+      state.pendingcb++;
+      state.finalCalled = true;
+      process.nextTick(callFinal, stream, state);
+    } else {
+      state.prefinished = true;
+      stream.emit('prefinish');
+    }
+  }
+}
+function finishMaybe(stream, state) {
+  var need = needFinish(state);
+  if (need) {
+    prefinish(stream, state);
+    if (state.pendingcb === 0) {
+      state.finished = true;
+      stream.emit('finish');
+      if (state.autoDestroy) {
+        // In case of duplex streams we need a way to detect
+        // if the readable side is ready for autoDestroy as well
+        var rState = stream._readableState;
+        if (!rState || rState.autoDestroy && rState.endEmitted) {
+          stream.destroy();
+        }
+      }
+    }
+  }
+  return need;
+}
+function endWritable(stream, state, cb) {
+  state.ending = true;
+  finishMaybe(stream, state);
+  if (cb) {
+    if (state.finished) process.nextTick(cb);else stream.once('finish', cb);
+  }
+  state.ended = true;
+  stream.writable = false;
+}
+function onCorkedFinish(corkReq, state, err) {
+  var entry = corkReq.entry;
+  corkReq.entry = null;
+  while (entry) {
+    var cb = entry.callback;
+    state.pendingcb--;
+    cb(err);
+    entry = entry.next;
+  }
+
+  // reuse the free corkReq.
+  state.corkedRequestsFree.next = corkReq;
+}
+Object.defineProperty(Writable.prototype, 'destroyed', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    if (this._writableState === undefined) {
+      return false;
+    }
+    return this._writableState.destroyed;
+  },
+  set: function set(value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (!this._writableState) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._writableState.destroyed = value;
+  }
+});
+Writable.prototype.destroy = destroyImpl.destroy;
+Writable.prototype._undestroy = destroyImpl.undestroy;
+Writable.prototype._destroy = function (err, cb) {
+  cb(err);
+};
\ No newline at end of file
diff --git a/node_modules/readable-stream/lib/internal/streams/async_iterator.js b/node_modules/readable-stream/lib/internal/streams/async_iterator.js
new file mode 100644
index 0000000..742c5a4
--- /dev/null
+++ b/node_modules/readable-stream/lib/internal/streams/async_iterator.js
@@ -0,0 +1,180 @@
+'use strict';
+
+var _Object$setPrototypeO;
+function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); }
+function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
+var finished = require('./end-of-stream');
+var kLastResolve = Symbol('lastResolve');
+var kLastReject = Symbol('lastReject');
+var kError = Symbol('error');
+var kEnded = Symbol('ended');
+var kLastPromise = Symbol('lastPromise');
+var kHandlePromise = Symbol('handlePromise');
+var kStream = Symbol('stream');
+function createIterResult(value, done) {
+  return {
+    value: value,
+    done: done
+  };
+}
+function readAndResolve(iter) {
+  var resolve = iter[kLastResolve];
+  if (resolve !== null) {
+    var data = iter[kStream].read();
+    // we defer if data is null
+    // we can be expecting either 'end' or
+    // 'error'
+    if (data !== null) {
+      iter[kLastPromise] = null;
+      iter[kLastResolve] = null;
+      iter[kLastReject] = null;
+      resolve(createIterResult(data, false));
+    }
+  }
+}
+function onReadable(iter) {
+  // we wait for the next tick, because it might
+  // emit an error with process.nextTick
+  process.nextTick(readAndResolve, iter);
+}
+function wrapForNext(lastPromise, iter) {
+  return function (resolve, reject) {
+    lastPromise.then(function () {
+      if (iter[kEnded]) {
+        resolve(createIterResult(undefined, true));
+        return;
+      }
+      iter[kHandlePromise](resolve, reject);
+    }, reject);
+  };
+}
+var AsyncIteratorPrototype = Object.getPrototypeOf(function () {});
+var ReadableStreamAsyncIteratorPrototype = Object.setPrototypeOf((_Object$setPrototypeO = {
+  get stream() {
+    return this[kStream];
+  },
+  next: function next() {
+    var _this = this;
+    // if we have detected an error in the meanwhile
+    // reject straight away
+    var error = this[kError];
+    if (error !== null) {
+      return Promise.reject(error);
+    }
+    if (this[kEnded]) {
+      return Promise.resolve(createIterResult(undefined, true));
+    }
+    if (this[kStream].destroyed) {
+      // We need to defer via nextTick because if .destroy(err) is
+      // called, the error will be emitted via nextTick, and
+      // we cannot guarantee that there is no error lingering around
+      // waiting to be emitted.
+      return new Promise(function (resolve, reject) {
+        process.nextTick(function () {
+          if (_this[kError]) {
+            reject(_this[kError]);
+          } else {
+            resolve(createIterResult(undefined, true));
+          }
+        });
+      });
+    }
+
+    // if we have multiple next() calls
+    // we will wait for the previous Promise to finish
+    // this logic is optimized to support for await loops,
+    // where next() is only called once at a time
+    var lastPromise = this[kLastPromise];
+    var promise;
+    if (lastPromise) {
+      promise = new Promise(wrapForNext(lastPromise, this));
+    } else {
+      // fast path needed to support multiple this.push()
+      // without triggering the next() queue
+      var data = this[kStream].read();
+      if (data !== null) {
+        return Promise.resolve(createIterResult(data, false));
+      }
+      promise = new Promise(this[kHandlePromise]);
+    }
+    this[kLastPromise] = promise;
+    return promise;
+  }
+}, _defineProperty(_Object$setPrototypeO, Symbol.asyncIterator, function () {
+  return this;
+}), _defineProperty(_Object$setPrototypeO, "return", function _return() {
+  var _this2 = this;
+  // destroy(err, cb) is a private API
+  // we can guarantee we have that here, because we control the
+  // Readable class this is attached to
+  return new Promise(function (resolve, reject) {
+    _this2[kStream].destroy(null, function (err) {
+      if (err) {
+        reject(err);
+        return;
+      }
+      resolve(createIterResult(undefined, true));
+    });
+  });
+}), _Object$setPrototypeO), AsyncIteratorPrototype);
+var createReadableStreamAsyncIterator = function createReadableStreamAsyncIterator(stream) {
+  var _Object$create;
+  var iterator = Object.create(ReadableStreamAsyncIteratorPrototype, (_Object$create = {}, _defineProperty(_Object$create, kStream, {
+    value: stream,
+    writable: true
+  }), _defineProperty(_Object$create, kLastResolve, {
+    value: null,
+    writable: true
+  }), _defineProperty(_Object$create, kLastReject, {
+    value: null,
+    writable: true
+  }), _defineProperty(_Object$create, kError, {
+    value: null,
+    writable: true
+  }), _defineProperty(_Object$create, kEnded, {
+    value: stream._readableState.endEmitted,
+    writable: true
+  }), _defineProperty(_Object$create, kHandlePromise, {
+    value: function value(resolve, reject) {
+      var data = iterator[kStream].read();
+      if (data) {
+        iterator[kLastPromise] = null;
+        iterator[kLastResolve] = null;
+        iterator[kLastReject] = null;
+        resolve(createIterResult(data, false));
+      } else {
+        iterator[kLastResolve] = resolve;
+        iterator[kLastReject] = reject;
+      }
+    },
+    writable: true
+  }), _Object$create));
+  iterator[kLastPromise] = null;
+  finished(stream, function (err) {
+    if (err && err.code !== 'ERR_STREAM_PREMATURE_CLOSE') {
+      var reject = iterator[kLastReject];
+      // reject if we are waiting for data in the Promise
+      // returned by next() and store the error
+      if (reject !== null) {
+        iterator[kLastPromise] = null;
+        iterator[kLastResolve] = null;
+        iterator[kLastReject] = null;
+        reject(err);
+      }
+      iterator[kError] = err;
+      return;
+    }
+    var resolve = iterator[kLastResolve];
+    if (resolve !== null) {
+      iterator[kLastPromise] = null;
+      iterator[kLastResolve] = null;
+      iterator[kLastReject] = null;
+      resolve(createIterResult(undefined, true));
+    }
+    iterator[kEnded] = true;
+  });
+  stream.on('readable', onReadable.bind(null, iterator));
+  return iterator;
+};
+module.exports = createReadableStreamAsyncIterator;
\ No newline at end of file
diff --git a/node_modules/readable-stream/lib/internal/streams/buffer_list.js b/node_modules/readable-stream/lib/internal/streams/buffer_list.js
new file mode 100644
index 0000000..69bda49
--- /dev/null
+++ b/node_modules/readable-stream/lib/internal/streams/buffer_list.js
@@ -0,0 +1,183 @@
+'use strict';
+
+function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
+function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
+function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
+function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); }
+function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
+var _require = require('buffer'),
+  Buffer = _require.Buffer;
+var _require2 = require('util'),
+  inspect = _require2.inspect;
+var custom = inspect && inspect.custom || 'inspect';
+function copyBuffer(src, target, offset) {
+  Buffer.prototype.copy.call(src, target, offset);
+}
+module.exports = /*#__PURE__*/function () {
+  function BufferList() {
+    _classCallCheck(this, BufferList);
+    this.head = null;
+    this.tail = null;
+    this.length = 0;
+  }
+  _createClass(BufferList, [{
+    key: "push",
+    value: function push(v) {
+      var entry = {
+        data: v,
+        next: null
+      };
+      if (this.length > 0) this.tail.next = entry;else this.head = entry;
+      this.tail = entry;
+      ++this.length;
+    }
+  }, {
+    key: "unshift",
+    value: function unshift(v) {
+      var entry = {
+        data: v,
+        next: this.head
+      };
+      if (this.length === 0) this.tail = entry;
+      this.head = entry;
+      ++this.length;
+    }
+  }, {
+    key: "shift",
+    value: function shift() {
+      if (this.length === 0) return;
+      var ret = this.head.data;
+      if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
+      --this.length;
+      return ret;
+    }
+  }, {
+    key: "clear",
+    value: function clear() {
+      this.head = this.tail = null;
+      this.length = 0;
+    }
+  }, {
+    key: "join",
+    value: function join(s) {
+      if (this.length === 0) return '';
+      var p = this.head;
+      var ret = '' + p.data;
+      while (p = p.next) ret += s + p.data;
+      return ret;
+    }
+  }, {
+    key: "concat",
+    value: function concat(n) {
+      if (this.length === 0) return Buffer.alloc(0);
+      var ret = Buffer.allocUnsafe(n >>> 0);
+      var p = this.head;
+      var i = 0;
+      while (p) {
+        copyBuffer(p.data, ret, i);
+        i += p.data.length;
+        p = p.next;
+      }
+      return ret;
+    }
+
+    // Consumes a specified amount of bytes or characters from the buffered data.
+  }, {
+    key: "consume",
+    value: function consume(n, hasStrings) {
+      var ret;
+      if (n < this.head.data.length) {
+        // `slice` is the same for buffers and strings.
+        ret = this.head.data.slice(0, n);
+        this.head.data = this.head.data.slice(n);
+      } else if (n === this.head.data.length) {
+        // First chunk is a perfect match.
+        ret = this.shift();
+      } else {
+        // Result spans more than one buffer.
+        ret = hasStrings ? this._getString(n) : this._getBuffer(n);
+      }
+      return ret;
+    }
+  }, {
+    key: "first",
+    value: function first() {
+      return this.head.data;
+    }
+
+    // Consumes a specified amount of characters from the buffered data.
+  }, {
+    key: "_getString",
+    value: function _getString(n) {
+      var p = this.head;
+      var c = 1;
+      var ret = p.data;
+      n -= ret.length;
+      while (p = p.next) {
+        var str = p.data;
+        var nb = n > str.length ? str.length : n;
+        if (nb === str.length) ret += str;else ret += str.slice(0, n);
+        n -= nb;
+        if (n === 0) {
+          if (nb === str.length) {
+            ++c;
+            if (p.next) this.head = p.next;else this.head = this.tail = null;
+          } else {
+            this.head = p;
+            p.data = str.slice(nb);
+          }
+          break;
+        }
+        ++c;
+      }
+      this.length -= c;
+      return ret;
+    }
+
+    // Consumes a specified amount of bytes from the buffered data.
+  }, {
+    key: "_getBuffer",
+    value: function _getBuffer(n) {
+      var ret = Buffer.allocUnsafe(n);
+      var p = this.head;
+      var c = 1;
+      p.data.copy(ret);
+      n -= p.data.length;
+      while (p = p.next) {
+        var buf = p.data;
+        var nb = n > buf.length ? buf.length : n;
+        buf.copy(ret, ret.length - n, 0, nb);
+        n -= nb;
+        if (n === 0) {
+          if (nb === buf.length) {
+            ++c;
+            if (p.next) this.head = p.next;else this.head = this.tail = null;
+          } else {
+            this.head = p;
+            p.data = buf.slice(nb);
+          }
+          break;
+        }
+        ++c;
+      }
+      this.length -= c;
+      return ret;
+    }
+
+    // Make sure the linked list only shows the minimal necessary information.
+  }, {
+    key: custom,
+    value: function value(_, options) {
+      return inspect(this, _objectSpread(_objectSpread({}, options), {}, {
+        // Only inspect one level.
+        depth: 0,
+        // It should not recurse.
+        customInspect: false
+      }));
+    }
+  }]);
+  return BufferList;
+}();
\ No newline at end of file
diff --git a/node_modules/readable-stream/lib/internal/streams/destroy.js b/node_modules/readable-stream/lib/internal/streams/destroy.js
new file mode 100644
index 0000000..31a17c4
--- /dev/null
+++ b/node_modules/readable-stream/lib/internal/streams/destroy.js
@@ -0,0 +1,96 @@
+'use strict';
+
+// undocumented cb() API, needed for core, not for public API
+function destroy(err, cb) {
+  var _this = this;
+  var readableDestroyed = this._readableState && this._readableState.destroyed;
+  var writableDestroyed = this._writableState && this._writableState.destroyed;
+  if (readableDestroyed || writableDestroyed) {
+    if (cb) {
+      cb(err);
+    } else if (err) {
+      if (!this._writableState) {
+        process.nextTick(emitErrorNT, this, err);
+      } else if (!this._writableState.errorEmitted) {
+        this._writableState.errorEmitted = true;
+        process.nextTick(emitErrorNT, this, err);
+      }
+    }
+    return this;
+  }
+
+  // we set destroyed to true before firing error callbacks in order
+  // to make it re-entrance safe in case destroy() is called within callbacks
+
+  if (this._readableState) {
+    this._readableState.destroyed = true;
+  }
+
+  // if this is a duplex stream mark the writable part as destroyed as well
+  if (this._writableState) {
+    this._writableState.destroyed = true;
+  }
+  this._destroy(err || null, function (err) {
+    if (!cb && err) {
+      if (!_this._writableState) {
+        process.nextTick(emitErrorAndCloseNT, _this, err);
+      } else if (!_this._writableState.errorEmitted) {
+        _this._writableState.errorEmitted = true;
+        process.nextTick(emitErrorAndCloseNT, _this, err);
+      } else {
+        process.nextTick(emitCloseNT, _this);
+      }
+    } else if (cb) {
+      process.nextTick(emitCloseNT, _this);
+      cb(err);
+    } else {
+      process.nextTick(emitCloseNT, _this);
+    }
+  });
+  return this;
+}
+function emitErrorAndCloseNT(self, err) {
+  emitErrorNT(self, err);
+  emitCloseNT(self);
+}
+function emitCloseNT(self) {
+  if (self._writableState && !self._writableState.emitClose) return;
+  if (self._readableState && !self._readableState.emitClose) return;
+  self.emit('close');
+}
+function undestroy() {
+  if (this._readableState) {
+    this._readableState.destroyed = false;
+    this._readableState.reading = false;
+    this._readableState.ended = false;
+    this._readableState.endEmitted = false;
+  }
+  if (this._writableState) {
+    this._writableState.destroyed = false;
+    this._writableState.ended = false;
+    this._writableState.ending = false;
+    this._writableState.finalCalled = false;
+    this._writableState.prefinished = false;
+    this._writableState.finished = false;
+    this._writableState.errorEmitted = false;
+  }
+}
+function emitErrorNT(self, err) {
+  self.emit('error', err);
+}
+function errorOrDestroy(stream, err) {
+  // We have tests that rely on errors being emitted
+  // in the same tick, so changing this is semver major.
+  // For now when you opt-in to autoDestroy we allow
+  // the error to be emitted nextTick. In a future
+  // semver major update we should change the default to this.
+
+  var rState = stream._readableState;
+  var wState = stream._writableState;
+  if (rState && rState.autoDestroy || wState && wState.autoDestroy) stream.destroy(err);else stream.emit('error', err);
+}
+module.exports = {
+  destroy: destroy,
+  undestroy: undestroy,
+  errorOrDestroy: errorOrDestroy
+};
\ No newline at end of file
diff --git a/node_modules/readable-stream/lib/internal/streams/end-of-stream.js b/node_modules/readable-stream/lib/internal/streams/end-of-stream.js
new file mode 100644
index 0000000..59c671b
--- /dev/null
+++ b/node_modules/readable-stream/lib/internal/streams/end-of-stream.js
@@ -0,0 +1,86 @@
+// Ported from https://github.com/mafintosh/end-of-stream with
+// permission from the author, Mathias Buus (@mafintosh).
+
+'use strict';
+
+var ERR_STREAM_PREMATURE_CLOSE = require('../../../errors').codes.ERR_STREAM_PREMATURE_CLOSE;
+function once(callback) {
+  var called = false;
+  return function () {
+    if (called) return;
+    called = true;
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    callback.apply(this, args);
+  };
+}
+function noop() {}
+function isRequest(stream) {
+  return stream.setHeader && typeof stream.abort === 'function';
+}
+function eos(stream, opts, callback) {
+  if (typeof opts === 'function') return eos(stream, null, opts);
+  if (!opts) opts = {};
+  callback = once(callback || noop);
+  var readable = opts.readable || opts.readable !== false && stream.readable;
+  var writable = opts.writable || opts.writable !== false && stream.writable;
+  var onlegacyfinish = function onlegacyfinish() {
+    if (!stream.writable) onfinish();
+  };
+  var writableEnded = stream._writableState && stream._writableState.finished;
+  var onfinish = function onfinish() {
+    writable = false;
+    writableEnded = true;
+    if (!readable) callback.call(stream);
+  };
+  var readableEnded = stream._readableState && stream._readableState.endEmitted;
+  var onend = function onend() {
+    readable = false;
+    readableEnded = true;
+    if (!writable) callback.call(stream);
+  };
+  var onerror = function onerror(err) {
+    callback.call(stream, err);
+  };
+  var onclose = function onclose() {
+    var err;
+    if (readable && !readableEnded) {
+      if (!stream._readableState || !stream._readableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
+      return callback.call(stream, err);
+    }
+    if (writable && !writableEnded) {
+      if (!stream._writableState || !stream._writableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
+      return callback.call(stream, err);
+    }
+  };
+  var onrequest = function onrequest() {
+    stream.req.on('finish', onfinish);
+  };
+  if (isRequest(stream)) {
+    stream.on('complete', onfinish);
+    stream.on('abort', onclose);
+    if (stream.req) onrequest();else stream.on('request', onrequest);
+  } else if (writable && !stream._writableState) {
+    // legacy streams
+    stream.on('end', onlegacyfinish);
+    stream.on('close', onlegacyfinish);
+  }
+  stream.on('end', onend);
+  stream.on('finish', onfinish);
+  if (opts.error !== false) stream.on('error', onerror);
+  stream.on('close', onclose);
+  return function () {
+    stream.removeListener('complete', onfinish);
+    stream.removeListener('abort', onclose);
+    stream.removeListener('request', onrequest);
+    if (stream.req) stream.req.removeListener('finish', onfinish);
+    stream.removeListener('end', onlegacyfinish);
+    stream.removeListener('close', onlegacyfinish);
+    stream.removeListener('finish', onfinish);
+    stream.removeListener('end', onend);
+    stream.removeListener('error', onerror);
+    stream.removeListener('close', onclose);
+  };
+}
+module.exports = eos;
\ No newline at end of file
diff --git a/node_modules/readable-stream/lib/internal/streams/from-browser.js b/node_modules/readable-stream/lib/internal/streams/from-browser.js
new file mode 100644
index 0000000..a4ce56f
--- /dev/null
+++ b/node_modules/readable-stream/lib/internal/streams/from-browser.js
@@ -0,0 +1,3 @@
+module.exports = function () {
+  throw new Error('Readable.from is not available in the browser')
+};
diff --git a/node_modules/readable-stream/lib/internal/streams/from.js b/node_modules/readable-stream/lib/internal/streams/from.js
new file mode 100644
index 0000000..0a34ee9
--- /dev/null
+++ b/node_modules/readable-stream/lib/internal/streams/from.js
@@ -0,0 +1,52 @@
+'use strict';
+
+function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }
+function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }
+function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
+function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
+function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); }
+function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
+var ERR_INVALID_ARG_TYPE = require('../../../errors').codes.ERR_INVALID_ARG_TYPE;
+function from(Readable, iterable, opts) {
+  var iterator;
+  if (iterable && typeof iterable.next === 'function') {
+    iterator = iterable;
+  } else if (iterable && iterable[Symbol.asyncIterator]) iterator = iterable[Symbol.asyncIterator]();else if (iterable && iterable[Symbol.iterator]) iterator = iterable[Symbol.iterator]();else throw new ERR_INVALID_ARG_TYPE('iterable', ['Iterable'], iterable);
+  var readable = new Readable(_objectSpread({
+    objectMode: true
+  }, opts));
+  // Reading boolean to protect against _read
+  // being called before last iteration completion.
+  var reading = false;
+  readable._read = function () {
+    if (!reading) {
+      reading = true;
+      next();
+    }
+  };
+  function next() {
+    return _next2.apply(this, arguments);
+  }
+  function _next2() {
+    _next2 = _asyncToGenerator(function* () {
+      try {
+        var _yield$iterator$next = yield iterator.next(),
+          value = _yield$iterator$next.value,
+          done = _yield$iterator$next.done;
+        if (done) {
+          readable.push(null);
+        } else if (readable.push(yield value)) {
+          next();
+        } else {
+          reading = false;
+        }
+      } catch (err) {
+        readable.destroy(err);
+      }
+    });
+    return _next2.apply(this, arguments);
+  }
+  return readable;
+}
+module.exports = from;
diff --git a/node_modules/readable-stream/lib/internal/streams/pipeline.js b/node_modules/readable-stream/lib/internal/streams/pipeline.js
new file mode 100644
index 0000000..e6f3924
--- /dev/null
+++ b/node_modules/readable-stream/lib/internal/streams/pipeline.js
@@ -0,0 +1,86 @@
+// Ported from https://github.com/mafintosh/pump with
+// permission from the author, Mathias Buus (@mafintosh).
+
+'use strict';
+
+var eos;
+function once(callback) {
+  var called = false;
+  return function () {
+    if (called) return;
+    called = true;
+    callback.apply(void 0, arguments);
+  };
+}
+var _require$codes = require('../../../errors').codes,
+  ERR_MISSING_ARGS = _require$codes.ERR_MISSING_ARGS,
+  ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED;
+function noop(err) {
+  // Rethrow the error if it exists to avoid swallowing it
+  if (err) throw err;
+}
+function isRequest(stream) {
+  return stream.setHeader && typeof stream.abort === 'function';
+}
+function destroyer(stream, reading, writing, callback) {
+  callback = once(callback);
+  var closed = false;
+  stream.on('close', function () {
+    closed = true;
+  });
+  if (eos === undefined) eos = require('./end-of-stream');
+  eos(stream, {
+    readable: reading,
+    writable: writing
+  }, function (err) {
+    if (err) return callback(err);
+    closed = true;
+    callback();
+  });
+  var destroyed = false;
+  return function (err) {
+    if (closed) return;
+    if (destroyed) return;
+    destroyed = true;
+
+    // request.destroy just do .end - .abort is what we want
+    if (isRequest(stream)) return stream.abort();
+    if (typeof stream.destroy === 'function') return stream.destroy();
+    callback(err || new ERR_STREAM_DESTROYED('pipe'));
+  };
+}
+function call(fn) {
+  fn();
+}
+function pipe(from, to) {
+  return from.pipe(to);
+}
+function popCallback(streams) {
+  if (!streams.length) return noop;
+  if (typeof streams[streams.length - 1] !== 'function') return noop;
+  return streams.pop();
+}
+function pipeline() {
+  for (var _len = arguments.length, streams = new Array(_len), _key = 0; _key < _len; _key++) {
+    streams[_key] = arguments[_key];
+  }
+  var callback = popCallback(streams);
+  if (Array.isArray(streams[0])) streams = streams[0];
+  if (streams.length < 2) {
+    throw new ERR_MISSING_ARGS('streams');
+  }
+  var error;
+  var destroys = streams.map(function (stream, i) {
+    var reading = i < streams.length - 1;
+    var writing = i > 0;
+    return destroyer(stream, reading, writing, function (err) {
+      if (!error) error = err;
+      if (err) destroys.forEach(call);
+      if (reading) return;
+      destroys.forEach(call);
+      callback(error);
+    });
+  });
+  return streams.reduce(pipe);
+}
+module.exports = pipeline;
\ No newline at end of file
diff --git a/node_modules/readable-stream/lib/internal/streams/state.js b/node_modules/readable-stream/lib/internal/streams/state.js
new file mode 100644
index 0000000..3fbf892
--- /dev/null
+++ b/node_modules/readable-stream/lib/internal/streams/state.js
@@ -0,0 +1,22 @@
+'use strict';
+
+var ERR_INVALID_OPT_VALUE = require('../../../errors').codes.ERR_INVALID_OPT_VALUE;
+function highWaterMarkFrom(options, isDuplex, duplexKey) {
+  return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null;
+}
+function getHighWaterMark(state, options, duplexKey, isDuplex) {
+  var hwm = highWaterMarkFrom(options, isDuplex, duplexKey);
+  if (hwm != null) {
+    if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) {
+      var name = isDuplex ? duplexKey : 'highWaterMark';
+      throw new ERR_INVALID_OPT_VALUE(name, hwm);
+    }
+    return Math.floor(hwm);
+  }
+
+  // Default value
+  return state.objectMode ? 16 : 16 * 1024;
+}
+module.exports = {
+  getHighWaterMark: getHighWaterMark
+};
\ No newline at end of file
diff --git a/node_modules/readable-stream/lib/internal/streams/stream-browser.js b/node_modules/readable-stream/lib/internal/streams/stream-browser.js
new file mode 100644
index 0000000..9332a3f
--- /dev/null
+++ b/node_modules/readable-stream/lib/internal/streams/stream-browser.js
@@ -0,0 +1 @@
+module.exports = require('events').EventEmitter;
diff --git a/node_modules/readable-stream/lib/internal/streams/stream.js b/node_modules/readable-stream/lib/internal/streams/stream.js
new file mode 100644
index 0000000..ce2ad5b
--- /dev/null
+++ b/node_modules/readable-stream/lib/internal/streams/stream.js
@@ -0,0 +1 @@
+module.exports = require('stream');
diff --git a/node_modules/readable-stream/package.json b/node_modules/readable-stream/package.json
new file mode 100644
index 0000000..ade59e7
--- /dev/null
+++ b/node_modules/readable-stream/package.json
@@ -0,0 +1,68 @@
+{
+  "name": "readable-stream",
+  "version": "3.6.2",
+  "description": "Streams3, a user-land copy of the stream library from Node.js",
+  "main": "readable.js",
+  "engines": {
+    "node": ">= 6"
+  },
+  "dependencies": {
+    "inherits": "^2.0.3",
+    "string_decoder": "^1.1.1",
+    "util-deprecate": "^1.0.1"
+  },
+  "devDependencies": {
+    "@babel/cli": "^7.2.0",
+    "@babel/core": "^7.2.0",
+    "@babel/polyfill": "^7.0.0",
+    "@babel/preset-env": "^7.2.0",
+    "airtap": "0.0.9",
+    "assert": "^1.4.0",
+    "bl": "^2.0.0",
+    "deep-strict-equal": "^0.2.0",
+    "events.once": "^2.0.2",
+    "glob": "^7.1.2",
+    "gunzip-maybe": "^1.4.1",
+    "hyperquest": "^2.1.3",
+    "lolex": "^2.6.0",
+    "nyc": "^11.0.0",
+    "pump": "^3.0.0",
+    "rimraf": "^2.6.2",
+    "tap": "^12.0.0",
+    "tape": "^4.9.0",
+    "tar-fs": "^1.16.2",
+    "util-promisify": "^2.1.0"
+  },
+  "scripts": {
+    "test": "tap -J --no-esm test/parallel/*.js test/ours/*.js",
+    "ci": "TAP=1 tap --no-esm test/parallel/*.js test/ours/*.js | tee test.tap",
+    "test-browsers": "airtap --sauce-connect --loopback airtap.local -- test/browser.js",
+    "test-browser-local": "airtap --open --local -- test/browser.js",
+    "cover": "nyc npm test",
+    "report": "nyc report --reporter=lcov",
+    "update-browser-errors": "babel -o errors-browser.js errors.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/nodejs/readable-stream"
+  },
+  "keywords": [
+    "readable",
+    "stream",
+    "pipe"
+  ],
+  "browser": {
+    "util": false,
+    "worker_threads": false,
+    "./errors": "./errors-browser.js",
+    "./readable.js": "./readable-browser.js",
+    "./lib/internal/streams/from.js": "./lib/internal/streams/from-browser.js",
+    "./lib/internal/streams/stream.js": "./lib/internal/streams/stream-browser.js"
+  },
+  "nyc": {
+    "include": [
+      "lib/**.js"
+    ]
+  },
+  "license": "MIT"
+}
diff --git a/node_modules/readable-stream/readable-browser.js b/node_modules/readable-stream/readable-browser.js
new file mode 100644
index 0000000..adbf60d
--- /dev/null
+++ b/node_modules/readable-stream/readable-browser.js
@@ -0,0 +1,9 @@
+exports = module.exports = require('./lib/_stream_readable.js');
+exports.Stream = exports;
+exports.Readable = exports;
+exports.Writable = require('./lib/_stream_writable.js');
+exports.Duplex = require('./lib/_stream_duplex.js');
+exports.Transform = require('./lib/_stream_transform.js');
+exports.PassThrough = require('./lib/_stream_passthrough.js');
+exports.finished = require('./lib/internal/streams/end-of-stream.js');
+exports.pipeline = require('./lib/internal/streams/pipeline.js');
diff --git a/node_modules/readable-stream/readable.js b/node_modules/readable-stream/readable.js
new file mode 100644
index 0000000..9e0ca12
--- /dev/null
+++ b/node_modules/readable-stream/readable.js
@@ -0,0 +1,16 @@
+var Stream = require('stream');
+if (process.env.READABLE_STREAM === 'disable' && Stream) {
+  module.exports = Stream.Readable;
+  Object.assign(module.exports, Stream);
+  module.exports.Stream = Stream;
+} else {
+  exports = module.exports = require('./lib/_stream_readable.js');
+  exports.Stream = Stream || exports;
+  exports.Readable = exports;
+  exports.Writable = require('./lib/_stream_writable.js');
+  exports.Duplex = require('./lib/_stream_duplex.js');
+  exports.Transform = require('./lib/_stream_transform.js');
+  exports.PassThrough = require('./lib/_stream_passthrough.js');
+  exports.finished = require('./lib/internal/streams/end-of-stream.js');
+  exports.pipeline = require('./lib/internal/streams/pipeline.js');
+}
diff --git a/node_modules/retry/.npmignore b/node_modules/retry/.npmignore
new file mode 100644
index 0000000..432f285
--- /dev/null
+++ b/node_modules/retry/.npmignore
@@ -0,0 +1,3 @@
+/node_modules/*
+npm-debug.log
+coverage
diff --git a/node_modules/retry/.travis.yml b/node_modules/retry/.travis.yml
new file mode 100644
index 0000000..bcde212
--- /dev/null
+++ b/node_modules/retry/.travis.yml
@@ -0,0 +1,15 @@
+language: node_js
+node_js:
+  - "4"
+before_install:
+  - pip install --user codecov
+after_success:
+  - codecov --file coverage/lcov.info --disable search
+# travis encrypt [subdomain]:[api token]@[room id]
+# notifications:
+#   email: false
+#   campfire:
+#     rooms:
+#       secure: xyz
+#     on_failure: always
+#     on_success: always
diff --git a/node_modules/retry/License b/node_modules/retry/License
new file mode 100644
index 0000000..0b58de3
--- /dev/null
+++ b/node_modules/retry/License
@@ -0,0 +1,21 @@
+Copyright (c) 2011:
+Tim Koschützki (tim@debuggable.com)
+Felix Geisendörfer (felix@debuggable.com)
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
diff --git a/node_modules/retry/Makefile b/node_modules/retry/Makefile
new file mode 100644
index 0000000..1968d8f
--- /dev/null
+++ b/node_modules/retry/Makefile
@@ -0,0 +1,18 @@
+SHELL := /bin/bash
+
+release-major: test
+	npm version major -m "Release %s"
+	git push
+	npm publish
+
+release-minor: test
+	npm version minor -m "Release %s"
+	git push
+	npm publish
+
+release-patch: test
+	npm version patch -m "Release %s"
+	git push
+	npm publish
+
+.PHONY: test release-major release-minor release-patch
diff --git a/node_modules/retry/README.md b/node_modules/retry/README.md
new file mode 100644
index 0000000..16e28ec
--- /dev/null
+++ b/node_modules/retry/README.md
@@ -0,0 +1,227 @@
+<!-- badges/ -->
+[![Build Status](https://secure.travis-ci.org/tim-kos/node-retry.png?branch=master)](http://travis-ci.org/tim-kos/node-retry "Check this project's build status on TravisCI")
+[![codecov](https://codecov.io/gh/tim-kos/node-retry/branch/master/graph/badge.svg)](https://codecov.io/gh/tim-kos/node-retry)
+<!-- /badges -->
+
+# retry
+
+Abstraction for exponential and custom retry strategies for failed operations.
+
+## Installation
+
+    npm install retry
+
+## Current Status
+
+This module has been tested and is ready to be used.
+
+## Tutorial
+
+The example below will retry a potentially failing `dns.resolve` operation
+`10` times using an exponential backoff strategy. With the default settings, this
+means the last attempt is made after `17 minutes and 3 seconds`.
+
+``` javascript
+var dns = require('dns');
+var retry = require('retry');
+
+function faultTolerantResolve(address, cb) {
+  var operation = retry.operation();
+
+  operation.attempt(function(currentAttempt) {
+    dns.resolve(address, function(err, addresses) {
+      if (operation.retry(err)) {
+        return;
+      }
+
+      cb(err ? operation.mainError() : null, addresses);
+    });
+  });
+}
+
+faultTolerantResolve('nodejs.org', function(err, addresses) {
+  console.log(err, addresses);
+});
+```
+
+Of course you can also configure the factors that go into the exponential
+backoff. See the API documentation below for all available settings.
+currentAttempt is an int representing the number of attempts so far.
+
+``` javascript
+var operation = retry.operation({
+  retries: 5,
+  factor: 3,
+  minTimeout: 1 * 1000,
+  maxTimeout: 60 * 1000,
+  randomize: true,
+});
+```
+
+## API
+
+### retry.operation([options])
+
+Creates a new `RetryOperation` object. `options` is the same as `retry.timeouts()`'s `options`, with two additions:
+
+* `forever`: Whether to retry forever, defaults to `false`.
+* `unref`: Whether to [unref](https://nodejs.org/api/timers.html#timers_unref) the setTimeout's, defaults to `false`.
+* `maxRetryTime`: The maximum time (in milliseconds) that the retried operation is allowed to run. Default is `Infinity`.  
+
+### retry.timeouts([options])
+
+Returns an array of timeouts. All time `options` and return values are in
+milliseconds. If `options` is an array, a copy of that array is returned.
+
+`options` is a JS object that can contain any of the following keys:
+
+* `retries`: The maximum amount of times to retry the operation. Default is `10`. Seting this to `1` means `do it once, then retry it once`.
+* `factor`: The exponential factor to use. Default is `2`.
+* `minTimeout`: The number of milliseconds before starting the first retry. Default is `1000`.
+* `maxTimeout`: The maximum number of milliseconds between two retries. Default is `Infinity`.
+* `randomize`: Randomizes the timeouts by multiplying with a factor between `1` to `2`. Default is `false`.
+
+The formula used to calculate the individual timeouts is:
+
+```
+Math.min(random * minTimeout * Math.pow(factor, attempt), maxTimeout)
+```
+
+Have a look at [this article][article] for a better explanation of approach.
+
+If you want to tune your `factor` / `times` settings to attempt the last retry
+after a certain amount of time, you can use wolfram alpha. For example in order
+to tune for `10` attempts in `5 minutes`, you can use this equation:
+
+![screenshot](https://github.com/tim-kos/node-retry/raw/master/equation.gif)
+
+Explaining the various values from left to right:
+
+* `k = 0 ... 9`:  The `retries` value (10)
+* `1000`: The `minTimeout` value in ms (1000)
+* `x^k`: No need to change this, `x` will be your resulting factor
+* `5 * 60 * 1000`: The desired total amount of time for retrying in ms (5 minutes)
+
+To make this a little easier for you, use wolfram alpha to do the calculations:
+
+<http://www.wolframalpha.com/input/?i=Sum%5B1000*x^k%2C+{k%2C+0%2C+9}%5D+%3D+5+*+60+*+1000>
+
+[article]: http://dthain.blogspot.com/2009/02/exponential-backoff-in-distributed.html
+
+### retry.createTimeout(attempt, opts)
+
+Returns a new `timeout` (integer in milliseconds) based on the given parameters.
+
+`attempt` is an integer representing for which retry the timeout should be calculated. If your retry operation was executed 4 times you had one attempt and 3 retries. If you then want to calculate a new timeout, you should set `attempt` to 4 (attempts are zero-indexed).
+
+`opts` can include `factor`, `minTimeout`, `randomize` (boolean) and `maxTimeout`. They are documented above.
+
+`retry.createTimeout()` is used internally by `retry.timeouts()` and is public for you to be able to create your own timeouts for reinserting an item, see [issue #13](https://github.com/tim-kos/node-retry/issues/13).
+
+### retry.wrap(obj, [options], [methodNames])
+
+Wrap all functions of the `obj` with retry. Optionally you can pass operation options and
+an array of method names which need to be wrapped.
+
+```
+retry.wrap(obj)
+
+retry.wrap(obj, ['method1', 'method2'])
+
+retry.wrap(obj, {retries: 3})
+
+retry.wrap(obj, {retries: 3}, ['method1', 'method2'])
+```
+The `options` object can take any options that the usual call to `retry.operation` can take.
+
+### new RetryOperation(timeouts, [options])
+
+Creates a new `RetryOperation` where `timeouts` is an array where each value is
+a timeout given in milliseconds.
+
+Available options:
+* `forever`: Whether to retry forever, defaults to `false`.
+* `unref`: Wether to [unref](https://nodejs.org/api/timers.html#timers_unref) the setTimeout's, defaults to `false`.
+
+If `forever` is true, the following changes happen:
+* `RetryOperation.errors()` will only output an array of one item: the last error.
+* `RetryOperation` will repeatedly use the `timeouts` array. Once all of its timeouts have been used up, it restarts with the first timeout, then uses the second and so on.
+
+#### retryOperation.errors()
+
+Returns an array of all errors that have been passed to `retryOperation.retry()` so far. The
+returning array has the errors ordered chronologically based on when they were passed to
+`retryOperation.retry()`, which means the first passed error is at index zero and the last is
+at the last index.
+
+#### retryOperation.mainError()
+
+A reference to the error object that occured most frequently. Errors are
+compared using the `error.message` property.
+
+If multiple error messages occured the same amount of time, the last error
+object with that message is returned.
+
+If no errors occured so far, the value is `null`.
+
+#### retryOperation.attempt(fn, timeoutOps)
+
+Defines the function `fn` that is to be retried and executes it for the first
+time right away. The `fn` function can receive an optional `currentAttempt` callback that represents the number of attempts to execute `fn` so far.
+
+Optionally defines `timeoutOps` which is an object having a property `timeout` in miliseconds and a property `cb` callback function.
+Whenever your retry operation takes longer than `timeout` to execute, the timeout callback function `cb` is called.
+
+
+#### retryOperation.try(fn)
+
+This is an alias for `retryOperation.attempt(fn)`. This is deprecated. Please use `retryOperation.attempt(fn)` instead.
+
+#### retryOperation.start(fn)
+
+This is an alias for `retryOperation.attempt(fn)`. This is deprecated. Please use `retryOperation.attempt(fn)` instead.
+
+#### retryOperation.retry(error)
+
+Returns `false` when no `error` value is given, or the maximum amount of retries
+has been reached.
+
+Otherwise it returns `true`, and retries the operation after the timeout for
+the current attempt number.
+
+#### retryOperation.stop()
+
+Allows you to stop the operation being retried. Useful for aborting the operation on a fatal error etc.
+
+#### retryOperation.reset()
+
+Resets the internal state of the operation object, so that you can call `attempt()` again as if this was a new operation object.
+
+#### retryOperation.attempts()
+
+Returns an int representing the number of attempts it took to call `fn` before it was successful.
+
+## License
+
+retry is licensed under the MIT license.
+
+
+# Changelog
+
+0.10.0 Adding `stop` functionality, thanks to @maxnachlinger.
+
+0.9.0 Adding `unref` functionality, thanks to @satazor.
+
+0.8.0 Implementing retry.wrap.
+
+0.7.0 Some bug fixes and made retry.createTimeout() public. Fixed issues [#10](https://github.com/tim-kos/node-retry/issues/10), [#12](https://github.com/tim-kos/node-retry/issues/12), and [#13](https://github.com/tim-kos/node-retry/issues/13).
+
+0.6.0 Introduced optional timeOps parameter for the attempt() function which is an object having a property timeout in milliseconds and a property cb callback function. Whenever your retry operation takes longer than timeout to execute, the timeout callback function cb is called.
+
+0.5.0 Some minor refactoring.
+
+0.4.0 Changed retryOperation.try() to retryOperation.attempt(). Deprecated the aliases start() and try() for it.
+
+0.3.0 Added retryOperation.start() which is an alias for retryOperation.try().
+
+0.2.0 Added attempts() function and parameter to retryOperation.try() representing the number of attempts it took to call fn().
diff --git a/node_modules/retry/equation.gif b/node_modules/retry/equation.gif
new file mode 100644
index 0000000..9710723
Binary files /dev/null and b/node_modules/retry/equation.gif differ
diff --git a/node_modules/retry/example/dns.js b/node_modules/retry/example/dns.js
new file mode 100644
index 0000000..446729b
--- /dev/null
+++ b/node_modules/retry/example/dns.js
@@ -0,0 +1,31 @@
+var dns = require('dns');
+var retry = require('../lib/retry');
+
+function faultTolerantResolve(address, cb) {
+  var opts = {
+    retries: 2,
+    factor: 2,
+    minTimeout: 1 * 1000,
+    maxTimeout: 2 * 1000,
+    randomize: true
+  };
+  var operation = retry.operation(opts);
+
+  operation.attempt(function(currentAttempt) {
+    dns.resolve(address, function(err, addresses) {
+      if (operation.retry(err)) {
+        return;
+      }
+
+      cb(operation.mainError(), operation.errors(), addresses);
+    });
+  });
+}
+
+faultTolerantResolve('nodejs.org', function(err, errors, addresses) {
+  console.warn('err:');
+  console.log(err);
+
+  console.warn('addresses:');
+  console.log(addresses);
+});
\ No newline at end of file
diff --git a/node_modules/retry/example/stop.js b/node_modules/retry/example/stop.js
new file mode 100644
index 0000000..e1ceafe
--- /dev/null
+++ b/node_modules/retry/example/stop.js
@@ -0,0 +1,40 @@
+var retry = require('../lib/retry');
+
+function attemptAsyncOperation(someInput, cb) {
+  var opts = {
+    retries: 2,
+    factor: 2,
+    minTimeout: 1 * 1000,
+    maxTimeout: 2 * 1000,
+    randomize: true
+  };
+  var operation = retry.operation(opts);
+
+  operation.attempt(function(currentAttempt) {
+    failingAsyncOperation(someInput, function(err, result) {
+
+      if (err && err.message === 'A fatal error') {
+        operation.stop();
+        return cb(err);
+      }
+
+      if (operation.retry(err)) {
+        return;
+      }
+
+      cb(operation.mainError(), operation.errors(), result);
+    });
+  });
+}
+
+attemptAsyncOperation('test input', function(err, errors, result) {
+  console.warn('err:');
+  console.log(err);
+
+  console.warn('result:');
+  console.log(result);
+});
+
+function failingAsyncOperation(input, cb) {
+  return setImmediate(cb.bind(null, new Error('A fatal error')));
+}
diff --git a/node_modules/retry/index.js b/node_modules/retry/index.js
new file mode 100644
index 0000000..ee62f3a
--- /dev/null
+++ b/node_modules/retry/index.js
@@ -0,0 +1 @@
+module.exports = require('./lib/retry');
\ No newline at end of file
diff --git a/node_modules/retry/lib/retry.js b/node_modules/retry/lib/retry.js
new file mode 100644
index 0000000..dcb5768
--- /dev/null
+++ b/node_modules/retry/lib/retry.js
@@ -0,0 +1,100 @@
+var RetryOperation = require('./retry_operation');
+
+exports.operation = function(options) {
+  var timeouts = exports.timeouts(options);
+  return new RetryOperation(timeouts, {
+      forever: options && options.forever,
+      unref: options && options.unref,
+      maxRetryTime: options && options.maxRetryTime
+  });
+};
+
+exports.timeouts = function(options) {
+  if (options instanceof Array) {
+    return [].concat(options);
+  }
+
+  var opts = {
+    retries: 10,
+    factor: 2,
+    minTimeout: 1 * 1000,
+    maxTimeout: Infinity,
+    randomize: false
+  };
+  for (var key in options) {
+    opts[key] = options[key];
+  }
+
+  if (opts.minTimeout > opts.maxTimeout) {
+    throw new Error('minTimeout is greater than maxTimeout');
+  }
+
+  var timeouts = [];
+  for (var i = 0; i < opts.retries; i++) {
+    timeouts.push(this.createTimeout(i, opts));
+  }
+
+  if (options && options.forever && !timeouts.length) {
+    timeouts.push(this.createTimeout(i, opts));
+  }
+
+  // sort the array numerically ascending
+  timeouts.sort(function(a,b) {
+    return a - b;
+  });
+
+  return timeouts;
+};
+
+exports.createTimeout = function(attempt, opts) {
+  var random = (opts.randomize)
+    ? (Math.random() + 1)
+    : 1;
+
+  var timeout = Math.round(random * opts.minTimeout * Math.pow(opts.factor, attempt));
+  timeout = Math.min(timeout, opts.maxTimeout);
+
+  return timeout;
+};
+
+exports.wrap = function(obj, options, methods) {
+  if (options instanceof Array) {
+    methods = options;
+    options = null;
+  }
+
+  if (!methods) {
+    methods = [];
+    for (var key in obj) {
+      if (typeof obj[key] === 'function') {
+        methods.push(key);
+      }
+    }
+  }
+
+  for (var i = 0; i < methods.length; i++) {
+    var method   = methods[i];
+    var original = obj[method];
+
+    obj[method] = function retryWrapper(original) {
+      var op       = exports.operation(options);
+      var args     = Array.prototype.slice.call(arguments, 1);
+      var callback = args.pop();
+
+      args.push(function(err) {
+        if (op.retry(err)) {
+          return;
+        }
+        if (err) {
+          arguments[0] = op.mainError();
+        }
+        callback.apply(this, arguments);
+      });
+
+      op.attempt(function() {
+        original.apply(obj, args);
+      });
+    }.bind(obj, original);
+    obj[method].options = options;
+  }
+};
diff --git a/node_modules/retry/lib/retry_operation.js b/node_modules/retry/lib/retry_operation.js
new file mode 100644
index 0000000..1e56469
--- /dev/null
+++ b/node_modules/retry/lib/retry_operation.js
@@ -0,0 +1,158 @@
+function RetryOperation(timeouts, options) {
+  // Compatibility for the old (timeouts, retryForever) signature
+  if (typeof options === 'boolean') {
+    options = { forever: options };
+  }
+
+  this._originalTimeouts = JSON.parse(JSON.stringify(timeouts));
+  this._timeouts = timeouts;
+  this._options = options || {};
+  this._maxRetryTime = options && options.maxRetryTime || Infinity;
+  this._fn = null;
+  this._errors = [];
+  this._attempts = 1;
+  this._operationTimeout = null;
+  this._operationTimeoutCb = null;
+  this._timeout = null;
+  this._operationStart = null;
+
+  if (this._options.forever) {
+    this._cachedTimeouts = this._timeouts.slice(0);
+  }
+}
+module.exports = RetryOperation;
+
+RetryOperation.prototype.reset = function() {
+  this._attempts = 1;
+  this._timeouts = this._originalTimeouts;
+}
+
+RetryOperation.prototype.stop = function() {
+  if (this._timeout) {
+    clearTimeout(this._timeout);
+  }
+
+  this._timeouts       = [];
+  this._cachedTimeouts = null;
+};
+
+RetryOperation.prototype.retry = function(err) {
+  if (this._timeout) {
+    clearTimeout(this._timeout);
+  }
+
+  if (!err) {
+    return false;
+  }
+  var currentTime = new Date().getTime();
+  if (err && currentTime - this._operationStart >= this._maxRetryTime) {
+    this._errors.unshift(new Error('RetryOperation timeout occurred'));
+    return false;
+  }
+
+  this._errors.push(err);
+
+  var timeout = this._timeouts.shift();
+  if (timeout === undefined) {
+    if (this._cachedTimeouts) {
+      // retry forever, only keep last error
+      this._errors.splice(this._errors.length - 1, this._errors.length);
+      this._timeouts = this._cachedTimeouts.slice(0);
+      timeout = this._timeouts.shift();
+    } else {
+      return false;
+    }
+  }
+
+  var self = this;
+  var timer = setTimeout(function() {
+    self._attempts++;
+
+    if (self._operationTimeoutCb) {
+      self._timeout = setTimeout(function() {
+        self._operationTimeoutCb(self._attempts);
+      }, self._operationTimeout);
+
+      if (self._options.unref) {
+          self._timeout.unref();
+      }
+    }
+
+    self._fn(self._attempts);
+  }, timeout);
+
+  if (this._options.unref) {
+      timer.unref();
+  }
+
+  return true;
+};
+
+RetryOperation.prototype.attempt = function(fn, timeoutOps) {
+  this._fn = fn;
+
+  if (timeoutOps) {
+    if (timeoutOps.timeout) {
+      this._operationTimeout = timeoutOps.timeout;
+    }
+    if (timeoutOps.cb) {
+      this._operationTimeoutCb = timeoutOps.cb;
+    }
+  }
+
+  var self = this;
+  if (this._operationTimeoutCb) {
+    this._timeout = setTimeout(function() {
+      self._operationTimeoutCb();
+    }, self._operationTimeout);
+  }
+
+  this._operationStart = new Date().getTime();
+
+  this._fn(this._attempts);
+};
+
+RetryOperation.prototype.try = function(fn) {
+  console.log('Using RetryOperation.try() is deprecated');
+  this.attempt(fn);
+};
+
+RetryOperation.prototype.start = function(fn) {
+  console.log('Using RetryOperation.start() is deprecated');
+  this.attempt(fn);
+};
+
+RetryOperation.prototype.start = RetryOperation.prototype.try;
+
+RetryOperation.prototype.errors = function() {
+  return this._errors;
+};
+
+RetryOperation.prototype.attempts = function() {
+  return this._attempts;
+};
+
+RetryOperation.prototype.mainError = function() {
+  if (this._errors.length === 0) {
+    return null;
+  }
+
+  var counts = {};
+  var mainError = null;
+  var mainErrorCount = 0;
+
+  for (var i = 0; i < this._errors.length; i++) {
+    var error = this._errors[i];
+    var message = error.message;
+    var count = (counts[message] || 0) + 1;
+
+    counts[message] = count;
+
+    if (count >= mainErrorCount) {
+      mainError = error;
+      mainErrorCount = count;
+    }
+  }
+
+  return mainError;
+};
diff --git a/node_modules/retry/package.json b/node_modules/retry/package.json
new file mode 100644
index 0000000..73c7259
--- /dev/null
+++ b/node_modules/retry/package.json
@@ -0,0 +1,32 @@
+{
+  "author": "Tim Koschützki <tim@debuggable.com> (http://debuggable.com/)",
+  "name": "retry",
+  "description": "Abstraction for exponential and custom retry strategies for failed operations.",
+  "license": "MIT",
+  "version": "0.12.0",
+  "homepage": "https://github.com/tim-kos/node-retry",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/tim-kos/node-retry.git"
+  },
+  "directories": {
+    "lib": "./lib"
+  },
+  "main": "index",
+  "engines": {
+    "node": ">= 4"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "fake": "0.2.0",
+    "istanbul": "^0.4.5",
+    "tape": "^4.8.0"
+  },
+  "scripts": {
+    "test": "./node_modules/.bin/istanbul cover ./node_modules/tape/bin/tape ./test/integration/*.js",
+    "release:major": "env SEMANTIC=major npm run release",
+    "release:minor": "env SEMANTIC=minor npm run release",
+    "release:patch": "env SEMANTIC=patch npm run release",
+    "release": "npm version ${SEMANTIC:-patch} -m \"Release %s\" && git push && git push --tags && npm publish"
+  }
+}
diff --git a/node_modules/retry/test/common.js b/node_modules/retry/test/common.js
new file mode 100644
index 0000000..2247206
--- /dev/null
+++ b/node_modules/retry/test/common.js
@@ -0,0 +1,10 @@
+var common = module.exports;
+var path = require('path');
+
+var rootDir = path.join(__dirname, '..');
+common.dir = {
+  lib: rootDir + '/lib'
+};
+
+common.assert = require('assert');
+common.fake = require('fake');
\ No newline at end of file
diff --git a/node_modules/retry/test/integration/test-forever.js b/node_modules/retry/test/integration/test-forever.js
new file mode 100644
index 0000000..b41307c
--- /dev/null
+++ b/node_modules/retry/test/integration/test-forever.js
@@ -0,0 +1,24 @@
+var common = require('../common');
+var assert = common.assert;
+var retry = require(common.dir.lib + '/retry');
+
+(function testForeverUsesFirstTimeout() {
+  var operation = retry.operation({
+    retries: 0,
+    minTimeout: 100,
+    maxTimeout: 100,
+    forever: true
+  });
+
+  operation.attempt(function(numAttempt) {
+    console.log('>numAttempt', numAttempt);
+    var err = new Error("foo");
+    if (numAttempt == 10) {
+      operation.stop();
+    }
+
+    if (operation.retry(err)) {
+      return;
+    }
+  });
+})();
diff --git a/node_modules/retry/test/integration/test-retry-operation.js b/node_modules/retry/test/integration/test-retry-operation.js
new file mode 100644
index 0000000..e351bb6
--- /dev/null
+++ b/node_modules/retry/test/integration/test-retry-operation.js
@@ -0,0 +1,258 @@
+var common = require('../common');
+var assert = common.assert;
+var fake = common.fake.create();
+var retry = require(common.dir.lib + '/retry');
+
+(function testReset() {
+  var error = new Error('some error');
+  var operation = retry.operation([1, 2, 3]);
+  var attempts = 0;
+
+  var finalCallback = fake.callback('finalCallback');
+  fake.expectAnytime(finalCallback);
+
+  var expectedFinishes = 1;
+  var finishes         = 0;
+
+  var fn = function() {
+    operation.attempt(function(currentAttempt) {
+      attempts++;
+      assert.equal(currentAttempt, attempts);
+      if (operation.retry(error)) {
+        return;
+      }
+
+      finishes++
+      assert.equal(expectedFinishes, finishes);
+      assert.strictEqual(attempts, 4);
+      assert.strictEqual(operation.attempts(), attempts);
+      assert.strictEqual(operation.mainError(), error);
+
+      if (finishes < 2) {
+        attempts = 0;
+        expectedFinishes++;
+        operation.reset();
+        fn()
+      } else {
+        finalCallback();
+      }
+    });
+  };
+
+  fn();
+})();
+
+(function testErrors() {
+  var operation = retry.operation();
+
+  var error = new Error('some error');
+  var error2 = new Error('some other error');
+  operation._errors.push(error);
+  operation._errors.push(error2);
+
+  assert.deepEqual(operation.errors(), [error, error2]);
+})();
+
+(function testMainErrorReturnsMostFrequentError() {
+  var operation = retry.operation();
+  var error = new Error('some error');
+  var error2 = new Error('some other error');
+
+  operation._errors.push(error);
+  operation._errors.push(error2);
+  operation._errors.push(error);
+
+  assert.strictEqual(operation.mainError(), error);
+})();
+
+(function testMainErrorReturnsLastErrorOnEqualCount() {
+  var operation = retry.operation();
+  var error = new Error('some error');
+  var error2 = new Error('some other error');
+
+  operation._errors.push(error);
+  operation._errors.push(error2);
+
+  assert.strictEqual(operation.mainError(), error2);
+})();
+
+(function testAttempt() {
+  var operation = retry.operation();
+  var fn = new Function();
+
+  var timeoutOpts = {
+    timeout: 1,
+    cb: function() {}
+  };
+  operation.attempt(fn, timeoutOpts);
+
+  assert.strictEqual(fn, operation._fn);
+  assert.strictEqual(timeoutOpts.timeout, operation._operationTimeout);
+  assert.strictEqual(timeoutOpts.cb, operation._operationTimeoutCb);
+})();
+
+(function testRetry() {
+  var error = new Error('some error');
+  var operation = retry.operation([1, 2, 3]);
+  var attempts = 0;
+
+  var finalCallback = fake.callback('finalCallback');
+  fake.expectAnytime(finalCallback);
+
+  var fn = function() {
+    operation.attempt(function(currentAttempt) {
+      attempts++;
+      assert.equal(currentAttempt, attempts);
+      if (operation.retry(error)) {
+        return;
+      }
+
+      assert.strictEqual(attempts, 4);
+      assert.strictEqual(operation.attempts(), attempts);
+      assert.strictEqual(operation.mainError(), error);
+      finalCallback();
+    });
+  };
+
+  fn();
+})();
+
+(function testRetryForever() {
+  var error = new Error('some error');
+  var operation = retry.operation({ retries: 3, forever: true });
+  var attempts = 0;
+
+  var finalCallback = fake.callback('finalCallback');
+  fake.expectAnytime(finalCallback);
+
+  var fn = function() {
+    operation.attempt(function(currentAttempt) {
+      attempts++;
+      assert.equal(currentAttempt, attempts);
+      if (attempts !== 6 && operation.retry(error)) {
+        return;
+      }
+
+      assert.strictEqual(attempts, 6);
+      assert.strictEqual(operation.attempts(), attempts);
+      assert.strictEqual(operation.mainError(), error);
+      finalCallback();
+    });
+  };
+
+  fn();
+})();
+
+(function testRetryForeverNoRetries() {
+  var error = new Error('some error');
+  var delay = 50
+  var operation = retry.operation({
+    retries: null,
+    forever: true,
+    minTimeout: delay,
+    maxTimeout: delay
+  });
+
+  var attempts = 0;
+  var startTime = new Date().getTime();
+
+  var finalCallback = fake.callback('finalCallback');
+  fake.expectAnytime(finalCallback);
+
+  var fn = function() {
+    operation.attempt(function(currentAttempt) {
+      attempts++;
+      assert.equal(currentAttempt, attempts);
+      if (attempts !== 4 && operation.retry(error)) {
+        return;
+      }
+
+      var endTime = new Date().getTime();
+      var minTime = startTime + (delay * 3);
+      var maxTime = minTime + 20 // add a little headroom for code execution time
+      assert(endTime >= minTime)
+      assert(endTime < maxTime)
+      assert.strictEqual(attempts, 4);
+      assert.strictEqual(operation.attempts(), attempts);
+      assert.strictEqual(operation.mainError(), error);
+      finalCallback();
+    });
+  };
+
+  fn();
+})();
+
+(function testStop() {
+  var error = new Error('some error');
+  var operation = retry.operation([1, 2, 3]);
+  var attempts = 0;
+
+  var finalCallback = fake.callback('finalCallback');
+  fake.expectAnytime(finalCallback);
+
+  var fn = function() {
+    operation.attempt(function(currentAttempt) {
+      attempts++;
+      assert.equal(currentAttempt, attempts);
+
+      if (attempts === 2) {
+        operation.stop();
+
+        assert.strictEqual(attempts, 2);
+        assert.strictEqual(operation.attempts(), attempts);
+        assert.strictEqual(operation.mainError(), error);
+        finalCallback();
+      }
+
+      if (operation.retry(error)) {
+        return;
+      }
+    });
+  };
+
+  fn();
+})();
+
+(function testMaxRetryTime() {
+  var error = new Error('some error');
+  var maxRetryTime = 30;
+  var operation = retry.operation({
+      minTimeout: 1,
+      maxRetryTime: maxRetryTime
+  });
+  var attempts = 0;
+
+  var finalCallback = fake.callback('finalCallback');
+  fake.expectAnytime(finalCallback);
+
+  var longAsyncFunction = function (wait, callback){
+    setTimeout(callback, wait);
+  };
+
+  var fn = function() {
+    var startTime = new Date().getTime();
+    operation.attempt(function(currentAttempt) {
+      attempts++;
+      assert.equal(currentAttempt, attempts);
+
+      if (attempts !== 2) {
+        if (operation.retry(error)) {
+            return;
+        }
+      } else {
+        var curTime = new Date().getTime();
+        longAsyncFunction(maxRetryTime - (curTime - startTime - 1), function(){
+          if (operation.retry(error)) {
+            assert.fail('timeout should be occurred');
+            return;
+          }
+
+          assert.strictEqual(operation.mainError(), error);
+          finalCallback();
+        });
+      }
+    });
+  };
+
+  fn();
+})();
diff --git a/node_modules/retry/test/integration/test-retry-wrap.js b/node_modules/retry/test/integration/test-retry-wrap.js
new file mode 100644
index 0000000..3d2b6bf
--- /dev/null
+++ b/node_modules/retry/test/integration/test-retry-wrap.js
@@ -0,0 +1,101 @@
+var common = require('../common');
+var assert = common.assert;
+var fake = common.fake.create();
+var retry = require(common.dir.lib + '/retry');
+
+function getLib() {
+  return {
+    fn1: function() {},
+    fn2: function() {},
+    fn3: function() {}
+  };
+}
+
+(function wrapAll() {
+  var lib = getLib();
+  retry.wrap(lib);
+  assert.equal(lib.fn1.name, 'bound retryWrapper');
+  assert.equal(lib.fn2.name, 'bound retryWrapper');
+  assert.equal(lib.fn3.name, 'bound retryWrapper');
+}());
+
+(function wrapAllPassOptions() {
+  var lib = getLib();
+  retry.wrap(lib, {retries: 2});
+  assert.equal(lib.fn1.name, 'bound retryWrapper');
+  assert.equal(lib.fn2.name, 'bound retryWrapper');
+  assert.equal(lib.fn3.name, 'bound retryWrapper');
+  assert.equal(lib.fn1.options.retries, 2);
+  assert.equal(lib.fn2.options.retries, 2);
+  assert.equal(lib.fn3.options.retries, 2);
+}());
+
+(function wrapDefined() {
+  var lib = getLib();
+  retry.wrap(lib, ['fn2', 'fn3']);
+  assert.notEqual(lib.fn1.name, 'bound retryWrapper');
+  assert.equal(lib.fn2.name, 'bound retryWrapper');
+  assert.equal(lib.fn3.name, 'bound retryWrapper');
+}());
+
+(function wrapDefinedAndPassOptions() {
+  var lib = getLib();
+  retry.wrap(lib, {retries: 2}, ['fn2', 'fn3']);
+  assert.notEqual(lib.fn1.name, 'bound retryWrapper');
+  assert.equal(lib.fn2.name, 'bound retryWrapper');
+  assert.equal(lib.fn3.name, 'bound retryWrapper');
+  assert.equal(lib.fn2.options.retries, 2);
+  assert.equal(lib.fn3.options.retries, 2);
+}());
+
+(function runWrappedWithoutError() {
+  var callbackCalled;
+  var lib = {method: function(a, b, callback) {
+    assert.equal(a, 1);
+    assert.equal(b, 2);
+    assert.equal(typeof callback, 'function');
+    callback();
+  }};
+  retry.wrap(lib);
+  lib.method(1, 2, function() {
+    callbackCalled = true;
+  });
+  assert.ok(callbackCalled);
+}());
+
+(function runWrappedSeveralWithoutError() {
+  var callbacksCalled = 0;
+  var lib = {
+    fn1: function (a, callback) {
+      assert.equal(a, 1);
+      assert.equal(typeof callback, 'function');
+      callback();
+    },
+    fn2: function (a, callback) {
+      assert.equal(a, 2);
+      assert.equal(typeof callback, 'function');
+      callback();
+    }
+  };
+  retry.wrap(lib, {}, ['fn1', 'fn2']);
+  lib.fn1(1, function() {
+    callbacksCalled++;
+  });
+  lib.fn2(2, function() {
+    callbacksCalled++;
+  });
+  assert.equal(callbacksCalled, 2);
+}());
+
+(function runWrappedWithError() {
+  var callbackCalled;
+  var lib = {method: function(callback) {
+    callback(new Error('Some error'));
+  }};
+  retry.wrap(lib, {retries: 1});
+  lib.method(function(err) {
+    callbackCalled = true;
+    assert.ok(err instanceof Error);
+  });
+  assert.ok(!callbackCalled);
+}());
diff --git a/node_modules/retry/test/integration/test-timeouts.js b/node_modules/retry/test/integration/test-timeouts.js
new file mode 100644
index 0000000..7206b0f
--- /dev/null
+++ b/node_modules/retry/test/integration/test-timeouts.js
@@ -0,0 +1,69 @@
+var common = require('../common');
+var assert = common.assert;
+var retry = require(common.dir.lib + '/retry');
+
+(function testDefaultValues() {
+  var timeouts = retry.timeouts();
+
+  assert.equal(timeouts.length, 10);
+  assert.equal(timeouts[0], 1000);
+  assert.equal(timeouts[1], 2000);
+  assert.equal(timeouts[2], 4000);
+})();
+
+(function testDefaultValuesWithRandomize() {
+  var minTimeout = 5000;
+  var timeouts = retry.timeouts({
+    minTimeout: minTimeout,
+    randomize: true
+  });
+
+  assert.equal(timeouts.length, 10);
+  assert.ok(timeouts[0] > minTimeout);
+  assert.ok(timeouts[1] > timeouts[0]);
+  assert.ok(timeouts[2] > timeouts[1]);
+})();
+
+(function testPassedTimeoutsAreUsed() {
+  var timeoutsArray = [1000, 2000, 3000];
+  var timeouts = retry.timeouts(timeoutsArray);
+  assert.deepEqual(timeouts, timeoutsArray);
+  assert.notStrictEqual(timeouts, timeoutsArray);
+})();
+
+(function testTimeoutsAreWithinBoundaries() {
+  var minTimeout = 1000;
+  var maxTimeout = 10000;
+  var timeouts = retry.timeouts({
+    minTimeout: minTimeout,
+    maxTimeout: maxTimeout
+  });
+  for (var i = 0; i < timeouts; i++) {
+    assert.ok(timeouts[i] >= minTimeout);
+    assert.ok(timeouts[i] <= maxTimeout);
+  }
+})();
+
+(function testTimeoutsAreIncremental() {
+  var timeouts = retry.timeouts();
+  var lastTimeout = timeouts[0];
+  for (var i = 0; i < timeouts; i++) {
+    assert.ok(timeouts[i] > lastTimeout);
+    lastTimeout = timeouts[i];
+  }
+})();
+
+(function testTimeoutsAreIncrementalForFactorsLessThanOne() {
+  var timeouts = retry.timeouts({
+    retries: 3,
+    factor: 0.5
+  });
+
+  var expected = [250, 500, 1000];
+  assert.deepEqual(expected, timeouts);
+})();
+
+(function testRetries() {
+  var timeouts = retry.timeouts({retries: 2});
+  assert.strictEqual(timeouts.length, 2);
+})();
diff --git a/node_modules/rimraf/CHANGELOG.md b/node_modules/rimraf/CHANGELOG.md
new file mode 100644
index 0000000..f116f14
--- /dev/null
+++ b/node_modules/rimraf/CHANGELOG.md
@@ -0,0 +1,65 @@
+# v3.0
+
+- Add `--preserve-root` option to executable (default true)
+- Drop support for Node.js below version 6
+
+# v2.7
+
+- Make `glob` an optional dependency
+
+# 2.6
+
+- Retry on EBUSY on non-windows platforms as well
+- Make `rimraf.sync` 10000% more reliable on Windows
+
+# 2.5
+
+- Handle Windows EPERM when lstat-ing read-only dirs
+- Add glob option to pass options to glob
+
+# 2.4
+
+- Add EPERM to delay/retry loop
+- Add `disableGlob` option
+
+# 2.3
+
+- Make maxBusyTries and emfileWait configurable
+- Handle weird SunOS unlink-dir issue
+- Glob the CLI arg for better Windows support
+
+# 2.2
+
+- Handle ENOENT properly on Windows
+- Allow overriding fs methods
+- Treat EPERM as indicative of non-empty dir
+- Remove optional graceful-fs dep
+- Consistently return null error instead of undefined on success
+- win32: Treat ENOTEMPTY the same as EBUSY
+- Add `rimraf` binary
+
+# 2.1
+
+- Fix SunOS error code for a non-empty directory
+- Try rmdir before readdir
+- Treat EISDIR like EPERM
+- Remove chmod
+- Remove lstat polyfill, node 0.7 is not supported
+
+# 2.0
+
+- Fix myGid call to check process.getgid
+- Simplify the EBUSY backoff logic.
+- Use fs.lstat in node >= 0.7.9
+- Remove gently option
+- remove fiber implementation
+- Delete files that are marked read-only
+
+# 1.0
+
+- Allow ENOENT in sync method
+- Throw when no callback is provided
+- Make opts.gently an absolute path
+- use 'stat' if 'lstat' is not available
+- Consistent error naming, and rethrow non-ENOENT stat errors
+- add fiber implementation
diff --git a/node_modules/rimraf/LICENSE b/node_modules/rimraf/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/rimraf/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/rimraf/README.md b/node_modules/rimraf/README.md
new file mode 100644
index 0000000..423b8cf
--- /dev/null
+++ b/node_modules/rimraf/README.md
@@ -0,0 +1,101 @@
+[![Build Status](https://travis-ci.org/isaacs/rimraf.svg?branch=master)](https://travis-ci.org/isaacs/rimraf) [![Dependency Status](https://david-dm.org/isaacs/rimraf.svg)](https://david-dm.org/isaacs/rimraf) [![devDependency Status](https://david-dm.org/isaacs/rimraf/dev-status.svg)](https://david-dm.org/isaacs/rimraf#info=devDependencies)
+
+The [UNIX command](http://en.wikipedia.org/wiki/Rm_(Unix)) `rm -rf` for node.
+
+Install with `npm install rimraf`, or just drop rimraf.js somewhere.
+
+## API
+
+`rimraf(f, [opts], callback)`
+
+The first parameter will be interpreted as a globbing pattern for files. If you
+want to disable globbing you can do so with `opts.disableGlob` (defaults to
+`false`). This might be handy, for instance, if you have filenames that contain
+globbing wildcard characters.
+
+The callback will be called with an error if there is one.  Certain
+errors are handled for you:
+
+* Windows: `EBUSY` and `ENOTEMPTY` - rimraf will back off a maximum of
+  `opts.maxBusyTries` times before giving up, adding 100ms of wait
+  between each attempt.  The default `maxBusyTries` is 3.
+* `ENOENT` - If the file doesn't exist, rimraf will return
+  successfully, since your desired outcome is already the case.
+* `EMFILE` - Since `readdir` requires opening a file descriptor, it's
+  possible to hit `EMFILE` if too many file descriptors are in use.
+  In the sync case, there's nothing to be done for this.  But in the
+  async case, rimraf will gradually back off with timeouts up to
+  `opts.emfileWait` ms, which defaults to 1000.
+
+## options
+
+* unlink, chmod, stat, lstat, rmdir, readdir,
+  unlinkSync, chmodSync, statSync, lstatSync, rmdirSync, readdirSync
+
+    In order to use a custom file system library, you can override
+    specific fs functions on the options object.
+
+    If any of these functions are present on the options object, then
+    the supplied function will be used instead of the default fs
+    method.
+
+    Sync methods are only relevant for `rimraf.sync()`, of course.
+
+    For example:
+
+    ```javascript
+    var myCustomFS = require('some-custom-fs')
+
+    rimraf('some-thing', myCustomFS, callback)
+    ```
+
+* maxBusyTries
+
+    If an `EBUSY`, `ENOTEMPTY`, or `EPERM` error code is encountered
+    on Windows systems, then rimraf will retry with a linear backoff
+    wait of 100ms longer on each try.  The default maxBusyTries is 3.
+
+    Only relevant for async usage.
+
+* emfileWait
+
+    If an `EMFILE` error is encountered, then rimraf will retry
+    repeatedly with a linear backoff of 1ms longer on each try, until
+    the timeout counter hits this max.  The default limit is 1000.
+
+    If you repeatedly encounter `EMFILE` errors, then consider using
+    [graceful-fs](http://npm.im/graceful-fs) in your program.
+
+    Only relevant for async usage.
+
+* glob
+
+    Set to `false` to disable [glob](http://npm.im/glob) pattern
+    matching.
+
+    Set to an object to pass options to the glob module.  The default
+    glob options are `{ nosort: true, silent: true }`.
+
+    Glob version 6 is used in this module.
+
+    Relevant for both sync and async usage.
+
+* disableGlob
+
+    Set to any non-falsey value to disable globbing entirely.
+    (Equivalent to setting `glob: false`.)
+
+## rimraf.sync
+
+It can remove stuff synchronously, too.  But that's not so good.  Use
+the async API.  It's better.
+
+## CLI
+
+If installed with `npm install rimraf -g` it can be used as a global
+command `rimraf <path> [<path> ...]` which is useful for cross platform support.
+
+## mkdirp
+
+If you need to create a directory recursively, check out
+[mkdirp](https://github.com/substack/node-mkdirp).
diff --git a/node_modules/rimraf/bin.js b/node_modules/rimraf/bin.js
new file mode 100644
index 0000000..023814c
--- /dev/null
+++ b/node_modules/rimraf/bin.js
@@ -0,0 +1,68 @@
+#!/usr/bin/env node
+
+const rimraf = require('./')
+
+const path = require('path')
+
+const isRoot = arg => /^(\/|[a-zA-Z]:\\)$/.test(path.resolve(arg))
+const filterOutRoot = arg => {
+  const ok = preserveRoot === false || !isRoot(arg)
+  if (!ok) {
+    console.error(`refusing to remove ${arg}`)
+    console.error('Set --no-preserve-root to allow this')
+  }
+  return ok
+}
+
+let help = false
+let dashdash = false
+let noglob = false
+let preserveRoot = true
+const args = process.argv.slice(2).filter(arg => {
+  if (dashdash)
+    return !!arg
+  else if (arg === '--')
+    dashdash = true
+  else if (arg === '--no-glob' || arg === '-G')
+    noglob = true
+  else if (arg === '--glob' || arg === '-g')
+    noglob = false
+  else if (arg.match(/^(-+|\/)(h(elp)?|\?)$/))
+    help = true
+  else if (arg === '--preserve-root')
+    preserveRoot = true
+  else if (arg === '--no-preserve-root')
+    preserveRoot = false
+  else
+    return !!arg
+}).filter(arg => !preserveRoot || filterOutRoot(arg))
+
+const go = n => {
+  if (n >= args.length)
+    return
+  const options = noglob ? { glob: false } : {}
+  rimraf(args[n], options, er => {
+    if (er)
+      throw er
+    go(n+1)
+  })
+}
+
+if (help || args.length === 0) {
+  // If they didn't ask for help, then this is not a "success"
+  const log = help ? console.log : console.error
+  log('Usage: rimraf <path> [<path> ...]')
+  log('')
+  log('  Deletes all files and folders at "path" recursively.')
+  log('')
+  log('Options:')
+  log('')
+  log('  -h, --help          Display this usage info')
+  log('  -G, --no-glob       Do not expand glob patterns in arguments')
+  log('  -g, --glob          Expand glob patterns in arguments (default)')
+  log('  --preserve-root     Do not remove \'/\' (default)')
+  log('  --no-preserve-root  Do not treat \'/\' specially')
+  log('  --                  Stop parsing flags')
+  process.exit(help ? 0 : 1)
+} else
+  go(0)
diff --git a/node_modules/rimraf/package.json b/node_modules/rimraf/package.json
new file mode 100644
index 0000000..1bf8d5e
--- /dev/null
+++ b/node_modules/rimraf/package.json
@@ -0,0 +1,32 @@
+{
+  "name": "rimraf",
+  "version": "3.0.2",
+  "main": "rimraf.js",
+  "description": "A deep deletion module for node (like `rm -rf`)",
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "ISC",
+  "repository": "git://github.com/isaacs/rimraf.git",
+  "scripts": {
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags",
+    "test": "tap test/*.js"
+  },
+  "bin": "./bin.js",
+  "dependencies": {
+    "glob": "^7.1.3"
+  },
+  "files": [
+    "LICENSE",
+    "README.md",
+    "bin.js",
+    "rimraf.js"
+  ],
+  "devDependencies": {
+    "mkdirp": "^0.5.1",
+    "tap": "^12.1.1"
+  },
+  "funding": {
+    "url": "https://github.com/sponsors/isaacs"
+  }
+}
diff --git a/node_modules/rimraf/rimraf.js b/node_modules/rimraf/rimraf.js
new file mode 100644
index 0000000..34da417
--- /dev/null
+++ b/node_modules/rimraf/rimraf.js
@@ -0,0 +1,360 @@
+const assert = require("assert")
+const path = require("path")
+const fs = require("fs")
+let glob = undefined
+try {
+  glob = require("glob")
+} catch (_err) {
+  // treat glob as optional.
+}
+
+const defaultGlobOpts = {
+  nosort: true,
+  silent: true
+}
+
+// for EMFILE handling
+let timeout = 0
+
+const isWindows = (process.platform === "win32")
+
+const defaults = options => {
+  const methods = [
+    'unlink',
+    'chmod',
+    'stat',
+    'lstat',
+    'rmdir',
+    'readdir'
+  ]
+  methods.forEach(m => {
+    options[m] = options[m] || fs[m]
+    m = m + 'Sync'
+    options[m] = options[m] || fs[m]
+  })
+
+  options.maxBusyTries = options.maxBusyTries || 3
+  options.emfileWait = options.emfileWait || 1000
+  if (options.glob === false) {
+    options.disableGlob = true
+  }
+  if (options.disableGlob !== true && glob === undefined) {
+    throw Error('glob dependency not found, set `options.disableGlob = true` if intentional')
+  }
+  options.disableGlob = options.disableGlob || false
+  options.glob = options.glob || defaultGlobOpts
+}
+
+const rimraf = (p, options, cb) => {
+  if (typeof options === 'function') {
+    cb = options
+    options = {}
+  }
+
+  assert(p, 'rimraf: missing path')
+  assert.equal(typeof p, 'string', 'rimraf: path should be a string')
+  assert.equal(typeof cb, 'function', 'rimraf: callback function required')
+  assert(options, 'rimraf: invalid options argument provided')
+  assert.equal(typeof options, 'object', 'rimraf: options should be object')
+
+  defaults(options)
+
+  let busyTries = 0
+  let errState = null
+  let n = 0
+
+  const next = (er) => {
+    errState = errState || er
+    if (--n === 0)
+      cb(errState)
+  }
+
+  const afterGlob = (er, results) => {
+    if (er)
+      return cb(er)
+
+    n = results.length
+    if (n === 0)
+      return cb()
+
+    results.forEach(p => {
+      const CB = (er) => {
+        if (er) {
+          if ((er.code === "EBUSY" || er.code === "ENOTEMPTY" || er.code === "EPERM") &&
+              busyTries < options.maxBusyTries) {
+            busyTries ++
+            // try again, with the same exact callback as this one.
+            return setTimeout(() => rimraf_(p, options, CB), busyTries * 100)
+          }
+
+          // this one won't happen if graceful-fs is used.
+          if (er.code === "EMFILE" && timeout < options.emfileWait) {
+            return setTimeout(() => rimraf_(p, options, CB), timeout ++)
+          }
+
+          // already gone
+          if (er.code === "ENOENT") er = null
+        }
+
+        timeout = 0
+        next(er)
+      }
+      rimraf_(p, options, CB)
+    })
+  }
+
+  if (options.disableGlob || !glob.hasMagic(p))
+    return afterGlob(null, [p])
+
+  options.lstat(p, (er, stat) => {
+    if (!er)
+      return afterGlob(null, [p])
+
+    glob(p, options.glob, afterGlob)
+  })
+
+}
+
+// Two possible strategies.
+// 1. Assume it's a file.  unlink it, then do the dir stuff on EPERM or EISDIR
+// 2. Assume it's a directory.  readdir, then do the file stuff on ENOTDIR
+//
+// Both result in an extra syscall when you guess wrong.  However, there
+// are likely far more normal files in the world than directories.  This
+// is based on the assumption that a the average number of files per
+// directory is >= 1.
+//
+// If anyone ever complains about this, then I guess the strategy could
+// be made configurable somehow.  But until then, YAGNI.
+const rimraf_ = (p, options, cb) => {
+  assert(p)
+  assert(options)
+  assert(typeof cb === 'function')
+
+  // sunos lets the root user unlink directories, which is... weird.
+  // so we have to lstat here and make sure it's not a dir.
+  options.lstat(p, (er, st) => {
+    if (er && er.code === "ENOENT")
+      return cb(null)
+
+    // Windows can EPERM on stat.  Life is suffering.
+    if (er && er.code === "EPERM" && isWindows)
+      fixWinEPERM(p, options, er, cb)
+
+    if (st && st.isDirectory())
+      return rmdir(p, options, er, cb)
+
+    options.unlink(p, er => {
+      if (er) {
+        if (er.code === "ENOENT")
+          return cb(null)
+        if (er.code === "EPERM")
+          return (isWindows)
+            ? fixWinEPERM(p, options, er, cb)
+            : rmdir(p, options, er, cb)
+        if (er.code === "EISDIR")
+          return rmdir(p, options, er, cb)
+      }
+      return cb(er)
+    })
+  })
+}
+
+const fixWinEPERM = (p, options, er, cb) => {
+  assert(p)
+  assert(options)
+  assert(typeof cb === 'function')
+
+  options.chmod(p, 0o666, er2 => {
+    if (er2)
+      cb(er2.code === "ENOENT" ? null : er)
+    else
+      options.stat(p, (er3, stats) => {
+        if (er3)
+          cb(er3.code === "ENOENT" ? null : er)
+        else if (stats.isDirectory())
+          rmdir(p, options, er, cb)
+        else
+          options.unlink(p, cb)
+      })
+  })
+}
+
+const fixWinEPERMSync = (p, options, er) => {
+  assert(p)
+  assert(options)
+
+  try {
+    options.chmodSync(p, 0o666)
+  } catch (er2) {
+    if (er2.code === "ENOENT")
+      return
+    else
+      throw er
+  }
+
+  let stats
+  try {
+    stats = options.statSync(p)
+  } catch (er3) {
+    if (er3.code === "ENOENT")
+      return
+    else
+      throw er
+  }
+
+  if (stats.isDirectory())
+    rmdirSync(p, options, er)
+  else
+    options.unlinkSync(p)
+}
+
+const rmdir = (p, options, originalEr, cb) => {
+  assert(p)
+  assert(options)
+  assert(typeof cb === 'function')
+
+  // try to rmdir first, and only readdir on ENOTEMPTY or EEXIST (SunOS)
+  // if we guessed wrong, and it's not a directory, then
+  // raise the original error.
+  options.rmdir(p, er => {
+    if (er && (er.code === "ENOTEMPTY" || er.code === "EEXIST" || er.code === "EPERM"))
+      rmkids(p, options, cb)
+    else if (er && er.code === "ENOTDIR")
+      cb(originalEr)
+    else
+      cb(er)
+  })
+}
+
+const rmkids = (p, options, cb) => {
+  assert(p)
+  assert(options)
+  assert(typeof cb === 'function')
+
+  options.readdir(p, (er, files) => {
+    if (er)
+      return cb(er)
+    let n = files.length
+    if (n === 0)
+      return options.rmdir(p, cb)
+    let errState
+    files.forEach(f => {
+      rimraf(path.join(p, f), options, er => {
+        if (errState)
+          return
+        if (er)
+          return cb(errState = er)
+        if (--n === 0)
+          options.rmdir(p, cb)
+      })
+    })
+  })
+}
+
+// this looks simpler, and is strictly *faster*, but will
+// tie up the JavaScript thread and fail on excessively
+// deep directory trees.
+const rimrafSync = (p, options) => {
+  options = options || {}
+  defaults(options)
+
+  assert(p, 'rimraf: missing path')
+  assert.equal(typeof p, 'string', 'rimraf: path should be a string')
+  assert(options, 'rimraf: missing options')
+  assert.equal(typeof options, 'object', 'rimraf: options should be object')
+
+  let results
+
+  if (options.disableGlob || !glob.hasMagic(p)) {
+    results = [p]
+  } else {
+    try {
+      options.lstatSync(p)
+      results = [p]
+    } catch (er) {
+      results = glob.sync(p, options.glob)
+    }
+  }
+
+  if (!results.length)
+    return
+
+  for (let i = 0; i < results.length; i++) {
+    const p = results[i]
+
+    let st
+    try {
+      st = options.lstatSync(p)
+    } catch (er) {
+      if (er.code === "ENOENT")
+        return
+
+      // Windows can EPERM on stat.  Life is suffering.
+      if (er.code === "EPERM" && isWindows)
+        fixWinEPERMSync(p, options, er)
+    }
+
+    try {
+      // sunos lets the root user unlink directories, which is... weird.
+      if (st && st.isDirectory())
+        rmdirSync(p, options, null)
+      else
+        options.unlinkSync(p)
+    } catch (er) {
+      if (er.code === "ENOENT")
+        return
+      if (er.code === "EPERM")
+        return isWindows ? fixWinEPERMSync(p, options, er) : rmdirSync(p, options, er)
+      if (er.code !== "EISDIR")
+        throw er
+
+      rmdirSync(p, options, er)
+    }
+  }
+}
+
+const rmdirSync = (p, options, originalEr) => {
+  assert(p)
+  assert(options)
+
+  try {
+    options.rmdirSync(p)
+  } catch (er) {
+    if (er.code === "ENOENT")
+      return
+    if (er.code === "ENOTDIR")
+      throw originalEr
+    if (er.code === "ENOTEMPTY" || er.code === "EEXIST" || er.code === "EPERM")
+      rmkidsSync(p, options)
+  }
+}
+
+const rmkidsSync = (p, options) => {
+  assert(p)
+  assert(options)
+  options.readdirSync(p).forEach(f => rimrafSync(path.join(p, f), options))
+
+  // We only end up here once we got ENOTEMPTY at least once, and
+  // at this point, we are guaranteed to have removed all the kids.
+  // So, we know that it won't be ENOENT or ENOTDIR or anything else.
+  // try really hard to delete stuff on windows, because it has a
+  // PROFOUNDLY annoying habit of not closing handles promptly when
+  // files are deleted, resulting in spurious ENOTEMPTY errors.
+  const retries = isWindows ? 100 : 1
+  let i = 0
+  do {
+    let threw = true
+    try {
+      const ret = options.rmdirSync(p, options)
+      threw = false
+      return ret
+    } finally {
+      if (++i < retries && threw)
+        continue
+    }
+  } while (true)
+}
+
+module.exports = rimraf
+rimraf.sync = rimrafSync
diff --git a/node_modules/semver/LICENSE b/node_modules/semver/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/semver/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/semver/README.md b/node_modules/semver/README.md
new file mode 100644
index 0000000..53ea9b5
--- /dev/null
+++ b/node_modules/semver/README.md
@@ -0,0 +1,637 @@
+semver(1) -- The semantic versioner for npm
+===========================================
+
+## Install
+
+```bash
+npm install semver
+````
+
+## Usage
+
+As a node module:
+
+```js
+const semver = require('semver')
+
+semver.valid('1.2.3') // '1.2.3'
+semver.valid('a.b.c') // null
+semver.clean('  =v1.2.3   ') // '1.2.3'
+semver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true
+semver.gt('1.2.3', '9.8.7') // false
+semver.lt('1.2.3', '9.8.7') // true
+semver.minVersion('>=1.0.0') // '1.0.0'
+semver.valid(semver.coerce('v2')) // '2.0.0'
+semver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7'
+```
+
+You can also just load the module for the function that you care about, if
+you'd like to minimize your footprint.
+
+```js
+// load the whole API at once in a single object
+const semver = require('semver')
+
+// or just load the bits you need
+// all of them listed here, just pick and choose what you want
+
+// classes
+const SemVer = require('semver/classes/semver')
+const Comparator = require('semver/classes/comparator')
+const Range = require('semver/classes/range')
+
+// functions for working with versions
+const semverParse = require('semver/functions/parse')
+const semverValid = require('semver/functions/valid')
+const semverClean = require('semver/functions/clean')
+const semverInc = require('semver/functions/inc')
+const semverDiff = require('semver/functions/diff')
+const semverMajor = require('semver/functions/major')
+const semverMinor = require('semver/functions/minor')
+const semverPatch = require('semver/functions/patch')
+const semverPrerelease = require('semver/functions/prerelease')
+const semverCompare = require('semver/functions/compare')
+const semverRcompare = require('semver/functions/rcompare')
+const semverCompareLoose = require('semver/functions/compare-loose')
+const semverCompareBuild = require('semver/functions/compare-build')
+const semverSort = require('semver/functions/sort')
+const semverRsort = require('semver/functions/rsort')
+
+// low-level comparators between versions
+const semverGt = require('semver/functions/gt')
+const semverLt = require('semver/functions/lt')
+const semverEq = require('semver/functions/eq')
+const semverNeq = require('semver/functions/neq')
+const semverGte = require('semver/functions/gte')
+const semverLte = require('semver/functions/lte')
+const semverCmp = require('semver/functions/cmp')
+const semverCoerce = require('semver/functions/coerce')
+
+// working with ranges
+const semverSatisfies = require('semver/functions/satisfies')
+const semverMaxSatisfying = require('semver/ranges/max-satisfying')
+const semverMinSatisfying = require('semver/ranges/min-satisfying')
+const semverToComparators = require('semver/ranges/to-comparators')
+const semverMinVersion = require('semver/ranges/min-version')
+const semverValidRange = require('semver/ranges/valid')
+const semverOutside = require('semver/ranges/outside')
+const semverGtr = require('semver/ranges/gtr')
+const semverLtr = require('semver/ranges/ltr')
+const semverIntersects = require('semver/ranges/intersects')
+const simplifyRange = require('semver/ranges/simplify')
+const rangeSubset = require('semver/ranges/subset')
+```
+
+As a command-line utility:
+
+```
+$ semver -h
+
+A JavaScript implementation of the https://semver.org/ specification
+Copyright Isaac Z. Schlueter
+
+Usage: semver [options] <version> [<version> [...]]
+Prints valid versions sorted by SemVer precedence
+
+Options:
+-r --range <range>
+        Print versions that match the specified range.
+
+-i --increment [<level>]
+        Increment a version by the specified level.  Level can
+        be one of: major, minor, patch, premajor, preminor,
+        prepatch, or prerelease.  Default level is 'patch'.
+        Only one version may be specified.
+
+--preid <identifier>
+        Identifier to be used to prefix premajor, preminor,
+        prepatch or prerelease version increments.
+
+-l --loose
+        Interpret versions and ranges loosely
+
+-n <0|1>
+        This is the base to be used for the prerelease identifier.
+
+-p --include-prerelease
+        Always include prerelease versions in range matching
+
+-c --coerce
+        Coerce a string into SemVer if possible
+        (does not imply --loose)
+
+--rtl
+        Coerce version strings right to left
+
+--ltr
+        Coerce version strings left to right (default)
+
+Program exits successfully if any valid version satisfies
+all supplied ranges, and prints all satisfying versions.
+
+If no satisfying versions are found, then exits failure.
+
+Versions are printed in ascending order, so supplying
+multiple versions to the utility will just sort them.
+```
+
+## Versions
+
+A "version" is described by the `v2.0.0` specification found at
+<https://semver.org/>.
+
+A leading `"="` or `"v"` character is stripped off and ignored.
+
+## Ranges
+
+A `version range` is a set of `comparators` which specify versions
+that satisfy the range.
+
+A `comparator` is composed of an `operator` and a `version`.  The set
+of primitive `operators` is:
+
+* `<` Less than
+* `<=` Less than or equal to
+* `>` Greater than
+* `>=` Greater than or equal to
+* `=` Equal.  If no operator is specified, then equality is assumed,
+  so this operator is optional, but MAY be included.
+
+For example, the comparator `>=1.2.7` would match the versions
+`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6`
+or `1.1.0`. The comparator `>1` is equivalent to `>=2.0.0` and
+would match the versions `2.0.0` and `3.1.0`, but not the versions
+`1.0.1` or `1.1.0`.
+
+Comparators can be joined by whitespace to form a `comparator set`,
+which is satisfied by the **intersection** of all of the comparators
+it includes.
+
+A range is composed of one or more comparator sets, joined by `||`.  A
+version matches a range if and only if every comparator in at least
+one of the `||`-separated comparator sets is satisfied by the version.
+
+For example, the range `>=1.2.7 <1.3.0` would match the versions
+`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`,
+or `1.1.0`.
+
+The range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`,
+`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`.
+
+### Prerelease Tags
+
+If a version has a prerelease tag (for example, `1.2.3-alpha.3`) then
+it will only be allowed to satisfy comparator sets if at least one
+comparator with the same `[major, minor, patch]` tuple also has a
+prerelease tag.
+
+For example, the range `>1.2.3-alpha.3` would be allowed to match the
+version `1.2.3-alpha.7`, but it would *not* be satisfied by
+`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically "greater
+than" `1.2.3-alpha.3` according to the SemVer sort rules.  The version
+range only accepts prerelease tags on the `1.2.3` version.  The
+version `3.4.5` *would* satisfy the range, because it does not have a
+prerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`.
+
+The purpose for this behavior is twofold.  First, prerelease versions
+frequently are updated very quickly, and contain many breaking changes
+that are (by the author's design) not yet fit for public consumption.
+Therefore, by default, they are excluded from range matching
+semantics.
+
+Second, a user who has opted into using a prerelease version has
+clearly indicated the intent to use *that specific* set of
+alpha/beta/rc versions.  By including a prerelease tag in the range,
+the user is indicating that they are aware of the risk.  However, it
+is still not appropriate to assume that they have opted into taking a
+similar risk on the *next* set of prerelease versions.
+
+Note that this behavior can be suppressed (treating all prerelease
+versions as if they were normal versions, for the purpose of range
+matching) by setting the `includePrerelease` flag on the options
+object to any
+[functions](https://github.com/npm/node-semver#functions) that do
+range matching.
+
+#### Prerelease Identifiers
+
+The method `.inc` takes an additional `identifier` string argument that
+will append the value of the string as a prerelease identifier:
+
+```javascript
+semver.inc('1.2.3', 'prerelease', 'beta')
+// '1.2.4-beta.0'
+```
+
+command-line example:
+
+```bash
+$ semver 1.2.3 -i prerelease --preid beta
+1.2.4-beta.0
+```
+
+Which then can be used to increment further:
+
+```bash
+$ semver 1.2.4-beta.0 -i prerelease
+1.2.4-beta.1
+```
+
+#### Prerelease Identifier Base
+
+The method `.inc` takes an optional parameter 'identifierBase' string
+that will let you let your prerelease number as zero-based or one-based.
+Set to `false` to omit the prerelease number altogether.
+If you do not specify this parameter, it will default to zero-based.
+
+```javascript
+semver.inc('1.2.3', 'prerelease', 'beta', '1')
+// '1.2.4-beta.1'
+```
+
+```javascript
+semver.inc('1.2.3', 'prerelease', 'beta', false)
+// '1.2.4-beta'
+```
+
+command-line example:
+
+```bash
+$ semver 1.2.3 -i prerelease --preid beta -n 1
+1.2.4-beta.1
+```
+
+```bash
+$ semver 1.2.3 -i prerelease --preid beta -n false
+1.2.4-beta
+```
+
+### Advanced Range Syntax
+
+Advanced range syntax desugars to primitive comparators in
+deterministic ways.
+
+Advanced ranges may be combined in the same way as primitive
+comparators using white space or `||`.
+
+#### Hyphen Ranges `X.Y.Z - A.B.C`
+
+Specifies an inclusive set.
+
+* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4`
+
+If a partial version is provided as the first version in the inclusive
+range, then the missing pieces are replaced with zeroes.
+
+* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4`
+
+If a partial version is provided as the second version in the
+inclusive range, then all versions that start with the supplied parts
+of the tuple are accepted, but nothing that would be greater than the
+provided tuple parts.
+
+* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0-0`
+* `1.2.3 - 2` := `>=1.2.3 <3.0.0-0`
+
+#### X-Ranges `1.2.x` `1.X` `1.2.*` `*`
+
+Any of `X`, `x`, or `*` may be used to "stand in" for one of the
+numeric values in the `[major, minor, patch]` tuple.
+
+* `*` := `>=0.0.0` (Any non-prerelease version satisfies, unless
+  `includePrerelease` is specified, in which case any version at all
+  satisfies)
+* `1.x` := `>=1.0.0 <2.0.0-0` (Matching major version)
+* `1.2.x` := `>=1.2.0 <1.3.0-0` (Matching major and minor versions)
+
+A partial version range is treated as an X-Range, so the special
+character is in fact optional.
+
+* `""` (empty string) := `*` := `>=0.0.0`
+* `1` := `1.x.x` := `>=1.0.0 <2.0.0-0`
+* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0-0`
+
+#### Tilde Ranges `~1.2.3` `~1.2` `~1`
+
+Allows patch-level changes if a minor version is specified on the
+comparator.  Allows minor-level changes if not.
+
+* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0-0`
+* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0-0` (Same as `1.2.x`)
+* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0-0` (Same as `1.x`)
+* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0-0`
+* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0-0` (Same as `0.2.x`)
+* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0-0` (Same as `0.x`)
+* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0-0` Note that prereleases in
+  the `1.2.3` version will be allowed, if they are greater than or
+  equal to `beta.2`.  So, `1.2.3-beta.4` would be allowed, but
+  `1.2.4-beta.2` would not, because it is a prerelease of a
+  different `[major, minor, patch]` tuple.
+
+#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4`
+
+Allows changes that do not modify the left-most non-zero element in the
+`[major, minor, patch]` tuple.  In other words, this allows patch and
+minor updates for versions `1.0.0` and above, patch updates for
+versions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`.
+
+Many authors treat a `0.x` version as if the `x` were the major
+"breaking-change" indicator.
+
+Caret ranges are ideal when an author may make breaking changes
+between `0.2.4` and `0.3.0` releases, which is a common practice.
+However, it presumes that there will *not* be breaking changes between
+`0.2.4` and `0.2.5`.  It allows for changes that are presumed to be
+additive (but non-breaking), according to commonly observed practices.
+
+* `^1.2.3` := `>=1.2.3 <2.0.0-0`
+* `^0.2.3` := `>=0.2.3 <0.3.0-0`
+* `^0.0.3` := `>=0.0.3 <0.0.4-0`
+* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0-0` Note that prereleases in
+  the `1.2.3` version will be allowed, if they are greater than or
+  equal to `beta.2`.  So, `1.2.3-beta.4` would be allowed, but
+  `1.2.4-beta.2` would not, because it is a prerelease of a
+  different `[major, minor, patch]` tuple.
+* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4-0`  Note that prereleases in the
+  `0.0.3` version *only* will be allowed, if they are greater than or
+  equal to `beta`.  So, `0.0.3-pr.2` would be allowed.
+
+When parsing caret ranges, a missing `patch` value desugars to the
+number `0`, but will allow flexibility within that value, even if the
+major and minor versions are both `0`.
+
+* `^1.2.x` := `>=1.2.0 <2.0.0-0`
+* `^0.0.x` := `>=0.0.0 <0.1.0-0`
+* `^0.0` := `>=0.0.0 <0.1.0-0`
+
+A missing `minor` and `patch` values will desugar to zero, but also
+allow flexibility within those values, even if the major version is
+zero.
+
+* `^1.x` := `>=1.0.0 <2.0.0-0`
+* `^0.x` := `>=0.0.0 <1.0.0-0`
+
+### Range Grammar
+
+Putting all this together, here is a Backus-Naur grammar for ranges,
+for the benefit of parser authors:
+
+```bnf
+range-set  ::= range ( logical-or range ) *
+logical-or ::= ( ' ' ) * '||' ( ' ' ) *
+range      ::= hyphen | simple ( ' ' simple ) * | ''
+hyphen     ::= partial ' - ' partial
+simple     ::= primitive | partial | tilde | caret
+primitive  ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
+partial    ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
+xr         ::= 'x' | 'X' | '*' | nr
+nr         ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *
+tilde      ::= '~' partial
+caret      ::= '^' partial
+qualifier  ::= ( '-' pre )? ( '+' build )?
+pre        ::= parts
+build      ::= parts
+parts      ::= part ( '.' part ) *
+part       ::= nr | [-0-9A-Za-z]+
+```
+
+## Functions
+
+All methods and classes take a final `options` object argument.  All
+options in this object are `false` by default.  The options supported
+are:
+
+- `loose`  Be more forgiving about not-quite-valid semver strings.
+  (Any resulting output will always be 100% strict compliant, of
+  course.)  For backwards compatibility reasons, if the `options`
+  argument is a boolean value instead of an object, it is interpreted
+  to be the `loose` param.
+- `includePrerelease`  Set to suppress the [default
+  behavior](https://github.com/npm/node-semver#prerelease-tags) of
+  excluding prerelease tagged versions from ranges unless they are
+  explicitly opted into.
+
+Strict-mode Comparators and Ranges will be strict about the SemVer
+strings that they parse.
+
+* `valid(v)`: Return the parsed version, or null if it's not valid.
+* `inc(v, release)`: Return the version incremented by the release
+  type (`major`,   `premajor`, `minor`, `preminor`, `patch`,
+  `prepatch`, or `prerelease`), or null if it's not valid
+  * `premajor` in one call will bump the version up to the next major
+    version and down to a prerelease of that major version.
+    `preminor`, and `prepatch` work the same way.
+  * If called from a non-prerelease version, the `prerelease` will work the
+    same as `prepatch`. It increments the patch version, then makes a
+    prerelease. If the input version is already a prerelease it simply
+    increments it.
+* `prerelease(v)`: Returns an array of prerelease components, or null
+  if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`
+* `major(v)`: Return the major version number.
+* `minor(v)`: Return the minor version number.
+* `patch(v)`: Return the patch version number.
+* `intersects(r1, r2, loose)`: Return true if the two supplied ranges
+  or comparators intersect.
+* `parse(v)`: Attempt to parse a string as a semantic version, returning either
+  a `SemVer` object or `null`.
+
+### Comparison
+
+* `gt(v1, v2)`: `v1 > v2`
+* `gte(v1, v2)`: `v1 >= v2`
+* `lt(v1, v2)`: `v1 < v2`
+* `lte(v1, v2)`: `v1 <= v2`
+* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent,
+  even if they're not the exact same string.  You already know how to
+  compare strings.
+* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`.
+* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call
+  the corresponding function above.  `"==="` and `"!=="` do simple
+  string comparison, but are included for completeness.  Throws if an
+  invalid comparison string is provided.
+* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if
+  `v2` is greater.  Sorts in ascending order if passed to `Array.sort()`.
+* `rcompare(v1, v2)`: The reverse of compare.  Sorts an array of versions
+  in descending order when passed to `Array.sort()`.
+* `compareBuild(v1, v2)`: The same as `compare` but considers `build` when two versions
+  are equal.  Sorts in ascending order if passed to `Array.sort()`.
+  `v2` is greater.  Sorts in ascending order if passed to `Array.sort()`.
+* `diff(v1, v2)`: Returns difference between two versions by the release type
+  (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),
+  or null if the versions are the same.
+
+### Comparators
+
+* `intersects(comparator)`: Return true if the comparators intersect
+
+### Ranges
+
+* `validRange(range)`: Return the valid range or null if it's not valid
+* `satisfies(version, range)`: Return true if the version satisfies the
+  range.
+* `maxSatisfying(versions, range)`: Return the highest version in the list
+  that satisfies the range, or `null` if none of them do.
+* `minSatisfying(versions, range)`: Return the lowest version in the list
+  that satisfies the range, or `null` if none of them do.
+* `minVersion(range)`: Return the lowest version that can possibly match
+  the given range.
+* `gtr(version, range)`: Return `true` if version is greater than all the
+  versions possible in the range.
+* `ltr(version, range)`: Return `true` if version is less than all the
+  versions possible in the range.
+* `outside(version, range, hilo)`: Return true if the version is outside
+  the bounds of the range in either the high or low direction.  The
+  `hilo` argument must be either the string `'>'` or `'<'`.  (This is
+  the function called by `gtr` and `ltr`.)
+* `intersects(range)`: Return true if any of the ranges comparators intersect
+* `simplifyRange(versions, range)`: Return a "simplified" range that
+  matches the same items in `versions` list as the range specified.  Note
+  that it does *not* guarantee that it would match the same versions in all
+  cases, only for the set of versions provided.  This is useful when
+  generating ranges by joining together multiple versions with `||`
+  programmatically, to provide the user with something a bit more
+  ergonomic.  If the provided range is shorter in string-length than the
+  generated range, then that is returned.
+* `subset(subRange, superRange)`: Return `true` if the `subRange` range is
+  entirely contained by the `superRange` range.
+
+Note that, since ranges may be non-contiguous, a version might not be
+greater than a range, less than a range, *or* satisfy a range!  For
+example, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9`
+until `2.0.0`, so the version `1.2.10` would not be greater than the
+range (because `2.0.1` satisfies, which is higher), nor less than the
+range (since `1.2.8` satisfies, which is lower), and it also does not
+satisfy the range.
+
+If you want to know if a version satisfies or does not satisfy a
+range, use the `satisfies(version, range)` function.
+
+### Coercion
+
+* `coerce(version, options)`: Coerces a string to semver if possible
+
+This aims to provide a very forgiving translation of a non-semver string to
+semver. It looks for the first digit in a string, and consumes all
+remaining characters which satisfy at least a partial semver (e.g., `1`,
+`1.2`, `1.2.3`) up to the max permitted length (256 characters).  Longer
+versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`).  All
+surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes
+`3.4.0`).  Only text which lacks digits will fail coercion (`version one`
+is not valid).  The maximum  length for any semver component considered for
+coercion is 16 characters; longer components will be ignored
+(`10000000000000000.4.7.4` becomes `4.7.4`).  The maximum value for any
+semver component is `Number.MAX_SAFE_INTEGER || (2**53 - 1)`; higher value
+components are invalid (`9999999999999999.4.7.4` is likely invalid).
+
+If the `options.rtl` flag is set, then `coerce` will return the right-most
+coercible tuple that does not share an ending index with a longer coercible
+tuple.  For example, `1.2.3.4` will return `2.3.4` in rtl mode, not
+`4.0.0`.  `1.2.3/4` will return `4.0.0`, because the `4` is not a part of
+any other overlapping SemVer tuple.
+
+### Clean
+
+* `clean(version)`: Clean a string to be a valid semver if possible
+
+This will return a cleaned and trimmed semver version. If the provided
+version is not valid a null will be returned. This does not work for
+ranges.
+
+ex.
+* `s.clean(' = v 2.1.5foo')`: `null`
+* `s.clean(' = v 2.1.5foo', { loose: true })`: `'2.1.5-foo'`
+* `s.clean(' = v 2.1.5-foo')`: `null`
+* `s.clean(' = v 2.1.5-foo', { loose: true })`: `'2.1.5-foo'`
+* `s.clean('=v2.1.5')`: `'2.1.5'`
+* `s.clean('  =v2.1.5')`: `2.1.5`
+* `s.clean('      2.1.5   ')`: `'2.1.5'`
+* `s.clean('~1.0.0')`: `null`
+
+## Constants
+
+As a convenience, helper constants are exported to provide information about what `node-semver` supports:
+
+### `RELEASE_TYPES`
+
+- major
+- premajor
+- minor
+- preminor
+- patch
+- prepatch
+- prerelease
+
+```
+const semver = require('semver');
+
+if (semver.RELEASE_TYPES.includes(arbitraryUserInput)) {
+  console.log('This is a valid release type!');
+} else {
+  console.warn('This is NOT a valid release type!');
+}
+```
+
+### `SEMVER_SPEC_VERSION`
+
+2.0.0
+
+```
+const semver = require('semver');
+
+console.log('We are currently using the semver specification version:', semver.SEMVER_SPEC_VERSION);
+```
+
+## Exported Modules
+
+<!--
+TODO: Make sure that all of these items are documented (classes aren't,
+eg), and then pull the module name into the documentation for that specific
+thing.
+-->
+
+You may pull in just the part of this semver utility that you need, if you
+are sensitive to packing and tree-shaking concerns.  The main
+`require('semver')` export uses getter functions to lazily load the parts
+of the API that are used.
+
+The following modules are available:
+
+* `require('semver')`
+* `require('semver/classes')`
+* `require('semver/classes/comparator')`
+* `require('semver/classes/range')`
+* `require('semver/classes/semver')`
+* `require('semver/functions/clean')`
+* `require('semver/functions/cmp')`
+* `require('semver/functions/coerce')`
+* `require('semver/functions/compare')`
+* `require('semver/functions/compare-build')`
+* `require('semver/functions/compare-loose')`
+* `require('semver/functions/diff')`
+* `require('semver/functions/eq')`
+* `require('semver/functions/gt')`
+* `require('semver/functions/gte')`
+* `require('semver/functions/inc')`
+* `require('semver/functions/lt')`
+* `require('semver/functions/lte')`
+* `require('semver/functions/major')`
+* `require('semver/functions/minor')`
+* `require('semver/functions/neq')`
+* `require('semver/functions/parse')`
+* `require('semver/functions/patch')`
+* `require('semver/functions/prerelease')`
+* `require('semver/functions/rcompare')`
+* `require('semver/functions/rsort')`
+* `require('semver/functions/satisfies')`
+* `require('semver/functions/sort')`
+* `require('semver/functions/valid')`
+* `require('semver/ranges/gtr')`
+* `require('semver/ranges/intersects')`
+* `require('semver/ranges/ltr')`
+* `require('semver/ranges/max-satisfying')`
+* `require('semver/ranges/min-satisfying')`
+* `require('semver/ranges/min-version')`
+* `require('semver/ranges/outside')`
+* `require('semver/ranges/to-comparators')`
+* `require('semver/ranges/valid')`
+
diff --git a/node_modules/semver/bin/semver.js b/node_modules/semver/bin/semver.js
new file mode 100644
index 0000000..242b7ad
--- /dev/null
+++ b/node_modules/semver/bin/semver.js
@@ -0,0 +1,197 @@
+#!/usr/bin/env node
+// Standalone semver comparison program.
+// Exits successfully and prints matching version(s) if
+// any supplied version is valid and passes all tests.
+
+const argv = process.argv.slice(2)
+
+let versions = []
+
+const range = []
+
+let inc = null
+
+const version = require('../package.json').version
+
+let loose = false
+
+let includePrerelease = false
+
+let coerce = false
+
+let rtl = false
+
+let identifier
+
+let identifierBase
+
+const semver = require('../')
+const parseOptions = require('../internal/parse-options')
+
+let reverse = false
+
+let options = {}
+
+const main = () => {
+  if (!argv.length) {
+    return help()
+  }
+  while (argv.length) {
+    let a = argv.shift()
+    const indexOfEqualSign = a.indexOf('=')
+    if (indexOfEqualSign !== -1) {
+      const value = a.slice(indexOfEqualSign + 1)
+      a = a.slice(0, indexOfEqualSign)
+      argv.unshift(value)
+    }
+    switch (a) {
+      case '-rv': case '-rev': case '--rev': case '--reverse':
+        reverse = true
+        break
+      case '-l': case '--loose':
+        loose = true
+        break
+      case '-p': case '--include-prerelease':
+        includePrerelease = true
+        break
+      case '-v': case '--version':
+        versions.push(argv.shift())
+        break
+      case '-i': case '--inc': case '--increment':
+        switch (argv[0]) {
+          case 'major': case 'minor': case 'patch': case 'prerelease':
+          case 'premajor': case 'preminor': case 'prepatch':
+            inc = argv.shift()
+            break
+          default:
+            inc = 'patch'
+            break
+        }
+        break
+      case '--preid':
+        identifier = argv.shift()
+        break
+      case '-r': case '--range':
+        range.push(argv.shift())
+        break
+      case '-n':
+        identifierBase = argv.shift()
+        if (identifierBase === 'false') {
+          identifierBase = false
+        }
+        break
+      case '-c': case '--coerce':
+        coerce = true
+        break
+      case '--rtl':
+        rtl = true
+        break
+      case '--ltr':
+        rtl = false
+        break
+      case '-h': case '--help': case '-?':
+        return help()
+      default:
+        versions.push(a)
+        break
+    }
+  }
+
+  options = parseOptions({ loose, includePrerelease, rtl })
+
+  versions = versions.map((v) => {
+    return coerce ? (semver.coerce(v, options) || { version: v }).version : v
+  }).filter((v) => {
+    return semver.valid(v)
+  })
+  if (!versions.length) {
+    return fail()
+  }
+  if (inc && (versions.length !== 1 || range.length)) {
+    return failInc()
+  }
+
+  for (let i = 0, l = range.length; i < l; i++) {
+    versions = versions.filter((v) => {
+      return semver.satisfies(v, range[i], options)
+    })
+    if (!versions.length) {
+      return fail()
+    }
+  }
+  return success(versions)
+}
+
+const failInc = () => {
+  console.error('--inc can only be used on a single version with no range')
+  fail()
+}
+
+const fail = () => process.exit(1)
+
+const success = () => {
+  const compare = reverse ? 'rcompare' : 'compare'
+  versions.sort((a, b) => {
+    return semver[compare](a, b, options)
+  }).map((v) => {
+    return semver.clean(v, options)
+  }).map((v) => {
+    return inc ? semver.inc(v, inc, options, identifier, identifierBase) : v
+  }).forEach((v, i, _) => {
+    console.log(v)
+  })
+}
+
+const help = () => console.log(
+`SemVer ${version}
+
+A JavaScript implementation of the https://semver.org/ specification
+Copyright Isaac Z. Schlueter
+
+Usage: semver [options] <version> [<version> [...]]
+Prints valid versions sorted by SemVer precedence
+
+Options:
+-r --range <range>
+        Print versions that match the specified range.
+
+-i --increment [<level>]
+        Increment a version by the specified level.  Level can
+        be one of: major, minor, patch, premajor, preminor,
+        prepatch, or prerelease.  Default level is 'patch'.
+        Only one version may be specified.
+
+--preid <identifier>
+        Identifier to be used to prefix premajor, preminor,
+        prepatch or prerelease version increments.
+
+-l --loose
+        Interpret versions and ranges loosely
+
+-p --include-prerelease
+        Always include prerelease versions in range matching
+
+-c --coerce
+        Coerce a string into SemVer if possible
+        (does not imply --loose)
+
+--rtl
+        Coerce version strings right to left
+
+--ltr
+        Coerce version strings left to right (default)
+
+-n <base>
+        Base number to be used for the prerelease identifier.
+        Can be either 0 or 1, or false to omit the number altogether.
+        Defaults to 0.
+
+Program exits successfully if any valid version satisfies
+all supplied ranges, and prints all satisfying versions.
+
+If no satisfying versions are found, then exits failure.
+
+Versions are printed in ascending order, so supplying
+multiple versions to the utility will just sort them.`)
+
+main()
diff --git a/node_modules/semver/classes/comparator.js b/node_modules/semver/classes/comparator.js
new file mode 100644
index 0000000..3d39c0e
--- /dev/null
+++ b/node_modules/semver/classes/comparator.js
@@ -0,0 +1,141 @@
+const ANY = Symbol('SemVer ANY')
+// hoisted class for cyclic dependency
+class Comparator {
+  static get ANY () {
+    return ANY
+  }
+
+  constructor (comp, options) {
+    options = parseOptions(options)
+
+    if (comp instanceof Comparator) {
+      if (comp.loose === !!options.loose) {
+        return comp
+      } else {
+        comp = comp.value
+      }
+    }
+
+    comp = comp.trim().split(/\s+/).join(' ')
+    debug('comparator', comp, options)
+    this.options = options
+    this.loose = !!options.loose
+    this.parse(comp)
+
+    if (this.semver === ANY) {
+      this.value = ''
+    } else {
+      this.value = this.operator + this.semver.version
+    }
+
+    debug('comp', this)
+  }
+
+  parse (comp) {
+    const r = this.options.loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR]
+    const m = comp.match(r)
+
+    if (!m) {
+      throw new TypeError(`Invalid comparator: ${comp}`)
+    }
+
+    this.operator = m[1] !== undefined ? m[1] : ''
+    if (this.operator === '=') {
+      this.operator = ''
+    }
+
+    // if it literally is just '>' or '' then allow anything.
+    if (!m[2]) {
+      this.semver = ANY
+    } else {
+      this.semver = new SemVer(m[2], this.options.loose)
+    }
+  }
+
+  toString () {
+    return this.value
+  }
+
+  test (version) {
+    debug('Comparator.test', version, this.options.loose)
+
+    if (this.semver === ANY || version === ANY) {
+      return true
+    }
+
+    if (typeof version === 'string') {
+      try {
+        version = new SemVer(version, this.options)
+      } catch (er) {
+        return false
+      }
+    }
+
+    return cmp(version, this.operator, this.semver, this.options)
+  }
+
+  intersects (comp, options) {
+    if (!(comp instanceof Comparator)) {
+      throw new TypeError('a Comparator is required')
+    }
+
+    if (this.operator === '') {
+      if (this.value === '') {
+        return true
+      }
+      return new Range(comp.value, options).test(this.value)
+    } else if (comp.operator === '') {
+      if (comp.value === '') {
+        return true
+      }
+      return new Range(this.value, options).test(comp.semver)
+    }
+
+    options = parseOptions(options)
+
+    // Special cases where nothing can possibly be lower
+    if (options.includePrerelease &&
+      (this.value === '<0.0.0-0' || comp.value === '<0.0.0-0')) {
+      return false
+    }
+    if (!options.includePrerelease &&
+      (this.value.startsWith('<0.0.0') || comp.value.startsWith('<0.0.0'))) {
+      return false
+    }
+
+    // Same direction increasing (> or >=)
+    if (this.operator.startsWith('>') && comp.operator.startsWith('>')) {
+      return true
+    }
+    // Same direction decreasing (< or <=)
+    if (this.operator.startsWith('<') && comp.operator.startsWith('<')) {
+      return true
+    }
+    // same SemVer and both sides are inclusive (<= or >=)
+    if (
+      (this.semver.version === comp.semver.version) &&
+      this.operator.includes('=') && comp.operator.includes('=')) {
+      return true
+    }
+    // opposite directions less than
+    if (cmp(this.semver, '<', comp.semver, options) &&
+      this.operator.startsWith('>') && comp.operator.startsWith('<')) {
+      return true
+    }
+    // opposite directions greater than
+    if (cmp(this.semver, '>', comp.semver, options) &&
+      this.operator.startsWith('<') && comp.operator.startsWith('>')) {
+      return true
+    }
+    return false
+  }
+}
+
+module.exports = Comparator
+
+const parseOptions = require('../internal/parse-options')
+const { safeRe: re, t } = require('../internal/re')
+const cmp = require('../functions/cmp')
+const debug = require('../internal/debug')
+const SemVer = require('./semver')
+const Range = require('./range')
diff --git a/node_modules/semver/classes/index.js b/node_modules/semver/classes/index.js
new file mode 100644
index 0000000..5e3f5c9
--- /dev/null
+++ b/node_modules/semver/classes/index.js
@@ -0,0 +1,5 @@
+module.exports = {
+  SemVer: require('./semver.js'),
+  Range: require('./range.js'),
+  Comparator: require('./comparator.js'),
+}
diff --git a/node_modules/semver/classes/range.js b/node_modules/semver/classes/range.js
new file mode 100644
index 0000000..7e7c414
--- /dev/null
+++ b/node_modules/semver/classes/range.js
@@ -0,0 +1,539 @@
+// hoisted class for cyclic dependency
+class Range {
+  constructor (range, options) {
+    options = parseOptions(options)
+
+    if (range instanceof Range) {
+      if (
+        range.loose === !!options.loose &&
+        range.includePrerelease === !!options.includePrerelease
+      ) {
+        return range
+      } else {
+        return new Range(range.raw, options)
+      }
+    }
+
+    if (range instanceof Comparator) {
+      // just put it in the set and return
+      this.raw = range.value
+      this.set = [[range]]
+      this.format()
+      return this
+    }
+
+    this.options = options
+    this.loose = !!options.loose
+    this.includePrerelease = !!options.includePrerelease
+
+    // First reduce all whitespace as much as possible so we do not have to rely
+    // on potentially slow regexes like \s*. This is then stored and used for
+    // future error messages as well.
+    this.raw = range
+      .trim()
+      .split(/\s+/)
+      .join(' ')
+
+    // First, split on ||
+    this.set = this.raw
+      .split('||')
+      // map the range to a 2d array of comparators
+      .map(r => this.parseRange(r.trim()))
+      // throw out any comparator lists that are empty
+      // this generally means that it was not a valid range, which is allowed
+      // in loose mode, but will still throw if the WHOLE range is invalid.
+      .filter(c => c.length)
+
+    if (!this.set.length) {
+      throw new TypeError(`Invalid SemVer Range: ${this.raw}`)
+    }
+
+    // if we have any that are not the null set, throw out null sets.
+    if (this.set.length > 1) {
+      // keep the first one, in case they're all null sets
+      const first = this.set[0]
+      this.set = this.set.filter(c => !isNullSet(c[0]))
+      if (this.set.length === 0) {
+        this.set = [first]
+      } else if (this.set.length > 1) {
+        // if we have any that are *, then the range is just *
+        for (const c of this.set) {
+          if (c.length === 1 && isAny(c[0])) {
+            this.set = [c]
+            break
+          }
+        }
+      }
+    }
+
+    this.format()
+  }
+
+  format () {
+    this.range = this.set
+      .map((comps) => comps.join(' ').trim())
+      .join('||')
+      .trim()
+    return this.range
+  }
+
+  toString () {
+    return this.range
+  }
+
+  parseRange (range) {
+    // memoize range parsing for performance.
+    // this is a very hot path, and fully deterministic.
+    const memoOpts =
+      (this.options.includePrerelease && FLAG_INCLUDE_PRERELEASE) |
+      (this.options.loose && FLAG_LOOSE)
+    const memoKey = memoOpts + ':' + range
+    const cached = cache.get(memoKey)
+    if (cached) {
+      return cached
+    }
+
+    const loose = this.options.loose
+    // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4`
+    const hr = loose ? re[t.HYPHENRANGELOOSE] : re[t.HYPHENRANGE]
+    range = range.replace(hr, hyphenReplace(this.options.includePrerelease))
+    debug('hyphen replace', range)
+
+    // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5`
+    range = range.replace(re[t.COMPARATORTRIM], comparatorTrimReplace)
+    debug('comparator trim', range)
+
+    // `~ 1.2.3` => `~1.2.3`
+    range = range.replace(re[t.TILDETRIM], tildeTrimReplace)
+    debug('tilde trim', range)
+
+    // `^ 1.2.3` => `^1.2.3`
+    range = range.replace(re[t.CARETTRIM], caretTrimReplace)
+    debug('caret trim', range)
+
+    // At this point, the range is completely trimmed and
+    // ready to be split into comparators.
+
+    let rangeList = range
+      .split(' ')
+      .map(comp => parseComparator(comp, this.options))
+      .join(' ')
+      .split(/\s+/)
+      // >=0.0.0 is equivalent to *
+      .map(comp => replaceGTE0(comp, this.options))
+
+    if (loose) {
+      // in loose mode, throw out any that are not valid comparators
+      rangeList = rangeList.filter(comp => {
+        debug('loose invalid filter', comp, this.options)
+        return !!comp.match(re[t.COMPARATORLOOSE])
+      })
+    }
+    debug('range list', rangeList)
+
+    // if any comparators are the null set, then replace with JUST null set
+    // if more than one comparator, remove any * comparators
+    // also, don't include the same comparator more than once
+    const rangeMap = new Map()
+    const comparators = rangeList.map(comp => new Comparator(comp, this.options))
+    for (const comp of comparators) {
+      if (isNullSet(comp)) {
+        return [comp]
+      }
+      rangeMap.set(comp.value, comp)
+    }
+    if (rangeMap.size > 1 && rangeMap.has('')) {
+      rangeMap.delete('')
+    }
+
+    const result = [...rangeMap.values()]
+    cache.set(memoKey, result)
+    return result
+  }
+
+  intersects (range, options) {
+    if (!(range instanceof Range)) {
+      throw new TypeError('a Range is required')
+    }
+
+    return this.set.some((thisComparators) => {
+      return (
+        isSatisfiable(thisComparators, options) &&
+        range.set.some((rangeComparators) => {
+          return (
+            isSatisfiable(rangeComparators, options) &&
+            thisComparators.every((thisComparator) => {
+              return rangeComparators.every((rangeComparator) => {
+                return thisComparator.intersects(rangeComparator, options)
+              })
+            })
+          )
+        })
+      )
+    })
+  }
+
+  // if ANY of the sets match ALL of its comparators, then pass
+  test (version) {
+    if (!version) {
+      return false
+    }
+
+    if (typeof version === 'string') {
+      try {
+        version = new SemVer(version, this.options)
+      } catch (er) {
+        return false
+      }
+    }
+
+    for (let i = 0; i < this.set.length; i++) {
+      if (testSet(this.set[i], version, this.options)) {
+        return true
+      }
+    }
+    return false
+  }
+}
+
+module.exports = Range
+
+const LRU = require('lru-cache')
+const cache = new LRU({ max: 1000 })
+
+const parseOptions = require('../internal/parse-options')
+const Comparator = require('./comparator')
+const debug = require('../internal/debug')
+const SemVer = require('./semver')
+const {
+  safeRe: re,
+  t,
+  comparatorTrimReplace,
+  tildeTrimReplace,
+  caretTrimReplace,
+} = require('../internal/re')
+const { FLAG_INCLUDE_PRERELEASE, FLAG_LOOSE } = require('../internal/constants')
+
+const isNullSet = c => c.value === '<0.0.0-0'
+const isAny = c => c.value === ''
+
+// take a set of comparators and determine whether there
+// exists a version which can satisfy it
+const isSatisfiable = (comparators, options) => {
+  let result = true
+  const remainingComparators = comparators.slice()
+  let testComparator = remainingComparators.pop()
+
+  while (result && remainingComparators.length) {
+    result = remainingComparators.every((otherComparator) => {
+      return testComparator.intersects(otherComparator, options)
+    })
+
+    testComparator = remainingComparators.pop()
+  }
+
+  return result
+}
+
+// comprised of xranges, tildes, stars, and gtlt's at this point.
+// already replaced the hyphen ranges
+// turn into a set of JUST comparators.
+const parseComparator = (comp, options) => {
+  debug('comp', comp, options)
+  comp = replaceCarets(comp, options)
+  debug('caret', comp)
+  comp = replaceTildes(comp, options)
+  debug('tildes', comp)
+  comp = replaceXRanges(comp, options)
+  debug('xrange', comp)
+  comp = replaceStars(comp, options)
+  debug('stars', comp)
+  return comp
+}
+
+const isX = id => !id || id.toLowerCase() === 'x' || id === '*'
+
+// ~, ~> --> * (any, kinda silly)
+// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0-0
+// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0-0
+// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0-0
+// ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0-0
+// ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0-0
+// ~0.0.1 --> >=0.0.1 <0.1.0-0
+const replaceTildes = (comp, options) => {
+  return comp
+    .trim()
+    .split(/\s+/)
+    .map((c) => replaceTilde(c, options))
+    .join(' ')
+}
+
+const replaceTilde = (comp, options) => {
+  const r = options.loose ? re[t.TILDELOOSE] : re[t.TILDE]
+  return comp.replace(r, (_, M, m, p, pr) => {
+    debug('tilde', comp, _, M, m, p, pr)
+    let ret
+
+    if (isX(M)) {
+      ret = ''
+    } else if (isX(m)) {
+      ret = `>=${M}.0.0 <${+M + 1}.0.0-0`
+    } else if (isX(p)) {
+      // ~1.2 == >=1.2.0 <1.3.0-0
+      ret = `>=${M}.${m}.0 <${M}.${+m + 1}.0-0`
+    } else if (pr) {
+      debug('replaceTilde pr', pr)
+      ret = `>=${M}.${m}.${p}-${pr
+      } <${M}.${+m + 1}.0-0`
+    } else {
+      // ~1.2.3 == >=1.2.3 <1.3.0-0
+      ret = `>=${M}.${m}.${p
+      } <${M}.${+m + 1}.0-0`
+    }
+
+    debug('tilde return', ret)
+    return ret
+  })
+}
+
+// ^ --> * (any, kinda silly)
+// ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0-0
+// ^2.0, ^2.0.x --> >=2.0.0 <3.0.0-0
+// ^1.2, ^1.2.x --> >=1.2.0 <2.0.0-0
+// ^1.2.3 --> >=1.2.3 <2.0.0-0
+// ^1.2.0 --> >=1.2.0 <2.0.0-0
+// ^0.0.1 --> >=0.0.1 <0.0.2-0
+// ^0.1.0 --> >=0.1.0 <0.2.0-0
+const replaceCarets = (comp, options) => {
+  return comp
+    .trim()
+    .split(/\s+/)
+    .map((c) => replaceCaret(c, options))
+    .join(' ')
+}
+
+const replaceCaret = (comp, options) => {
+  debug('caret', comp, options)
+  const r = options.loose ? re[t.CARETLOOSE] : re[t.CARET]
+  const z = options.includePrerelease ? '-0' : ''
+  return comp.replace(r, (_, M, m, p, pr) => {
+    debug('caret', comp, _, M, m, p, pr)
+    let ret
+
+    if (isX(M)) {
+      ret = ''
+    } else if (isX(m)) {
+      ret = `>=${M}.0.0${z} <${+M + 1}.0.0-0`
+    } else if (isX(p)) {
+      if (M === '0') {
+        ret = `>=${M}.${m}.0${z} <${M}.${+m + 1}.0-0`
+      } else {
+        ret = `>=${M}.${m}.0${z} <${+M + 1}.0.0-0`
+      }
+    } else if (pr) {
+      debug('replaceCaret pr', pr)
+      if (M === '0') {
+        if (m === '0') {
+          ret = `>=${M}.${m}.${p}-${pr
+          } <${M}.${m}.${+p + 1}-0`
+        } else {
+          ret = `>=${M}.${m}.${p}-${pr
+          } <${M}.${+m + 1}.0-0`
+        }
+      } else {
+        ret = `>=${M}.${m}.${p}-${pr
+        } <${+M + 1}.0.0-0`
+      }
+    } else {
+      debug('no pr')
+      if (M === '0') {
+        if (m === '0') {
+          ret = `>=${M}.${m}.${p
+          }${z} <${M}.${m}.${+p + 1}-0`
+        } else {
+          ret = `>=${M}.${m}.${p
+          }${z} <${M}.${+m + 1}.0-0`
+        }
+      } else {
+        ret = `>=${M}.${m}.${p
+        } <${+M + 1}.0.0-0`
+      }
+    }
+
+    debug('caret return', ret)
+    return ret
+  })
+}
+
+const replaceXRanges = (comp, options) => {
+  debug('replaceXRanges', comp, options)
+  return comp
+    .split(/\s+/)
+    .map((c) => replaceXRange(c, options))
+    .join(' ')
+}
+
+const replaceXRange = (comp, options) => {
+  comp = comp.trim()
+  const r = options.loose ? re[t.XRANGELOOSE] : re[t.XRANGE]
+  return comp.replace(r, (ret, gtlt, M, m, p, pr) => {
+    debug('xRange', comp, ret, gtlt, M, m, p, pr)
+    const xM = isX(M)
+    const xm = xM || isX(m)
+    const xp = xm || isX(p)
+    const anyX = xp
+
+    if (gtlt === '=' && anyX) {
+      gtlt = ''
+    }
+
+    // if we're including prereleases in the match, then we need
+    // to fix this to -0, the lowest possible prerelease value
+    pr = options.includePrerelease ? '-0' : ''
+
+    if (xM) {
+      if (gtlt === '>' || gtlt === '<') {
+        // nothing is allowed
+        ret = '<0.0.0-0'
+      } else {
+        // nothing is forbidden
+        ret = '*'
+      }
+    } else if (gtlt && anyX) {
+      // we know patch is an x, because we have any x at all.
+      // replace X with 0
+      if (xm) {
+        m = 0
+      }
+      p = 0
+
+      if (gtlt === '>') {
+        // >1 => >=2.0.0
+        // >1.2 => >=1.3.0
+        gtlt = '>='
+        if (xm) {
+          M = +M + 1
+          m = 0
+          p = 0
+        } else {
+          m = +m + 1
+          p = 0
+        }
+      } else if (gtlt === '<=') {
+        // <=0.7.x is actually <0.8.0, since any 0.7.x should
+        // pass.  Similarly, <=7.x is actually <8.0.0, etc.
+        gtlt = '<'
+        if (xm) {
+          M = +M + 1
+        } else {
+          m = +m + 1
+        }
+      }
+
+      if (gtlt === '<') {
+        pr = '-0'
+      }
+
+      ret = `${gtlt + M}.${m}.${p}${pr}`
+    } else if (xm) {
+      ret = `>=${M}.0.0${pr} <${+M + 1}.0.0-0`
+    } else if (xp) {
+      ret = `>=${M}.${m}.0${pr
+      } <${M}.${+m + 1}.0-0`
+    }
+
+    debug('xRange return', ret)
+
+    return ret
+  })
+}
+
+// Because * is AND-ed with everything else in the comparator,
+// and '' means "any version", just remove the *s entirely.
+const replaceStars = (comp, options) => {
+  debug('replaceStars', comp, options)
+  // Looseness is ignored here.  star is always as loose as it gets!
+  return comp
+    .trim()
+    .replace(re[t.STAR], '')
+}
+
+const replaceGTE0 = (comp, options) => {
+  debug('replaceGTE0', comp, options)
+  return comp
+    .trim()
+    .replace(re[options.includePrerelease ? t.GTE0PRE : t.GTE0], '')
+}
+
+// This function is passed to string.replace(re[t.HYPHENRANGE])
+// M, m, patch, prerelease, build
+// 1.2 - 3.4.5 => >=1.2.0 <=3.4.5
+// 1.2.3 - 3.4 => >=1.2.0 <3.5.0-0 Any 3.4.x will do
+// 1.2 - 3.4 => >=1.2.0 <3.5.0-0
+const hyphenReplace = incPr => ($0,
+  from, fM, fm, fp, fpr, fb,
+  to, tM, tm, tp, tpr, tb) => {
+  if (isX(fM)) {
+    from = ''
+  } else if (isX(fm)) {
+    from = `>=${fM}.0.0${incPr ? '-0' : ''}`
+  } else if (isX(fp)) {
+    from = `>=${fM}.${fm}.0${incPr ? '-0' : ''}`
+  } else if (fpr) {
+    from = `>=${from}`
+  } else {
+    from = `>=${from}${incPr ? '-0' : ''}`
+  }
+
+  if (isX(tM)) {
+    to = ''
+  } else if (isX(tm)) {
+    to = `<${+tM + 1}.0.0-0`
+  } else if (isX(tp)) {
+    to = `<${tM}.${+tm + 1}.0-0`
+  } else if (tpr) {
+    to = `<=${tM}.${tm}.${tp}-${tpr}`
+  } else if (incPr) {
+    to = `<${tM}.${tm}.${+tp + 1}-0`
+  } else {
+    to = `<=${to}`
+  }
+
+  return `${from} ${to}`.trim()
+}
+
+const testSet = (set, version, options) => {
+  for (let i = 0; i < set.length; i++) {
+    if (!set[i].test(version)) {
+      return false
+    }
+  }
+
+  if (version.prerelease.length && !options.includePrerelease) {
+    // Find the set of versions that are allowed to have prereleases
+    // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0
+    // That should allow `1.2.3-pr.2` to pass.
+    // However, `1.2.4-alpha.notready` should NOT be allowed,
+    // even though it's within the range set by the comparators.
+    for (let i = 0; i < set.length; i++) {
+      debug(set[i].semver)
+      if (set[i].semver === Comparator.ANY) {
+        continue
+      }
+
+      if (set[i].semver.prerelease.length > 0) {
+        const allowed = set[i].semver
+        if (allowed.major === version.major &&
+            allowed.minor === version.minor &&
+            allowed.patch === version.patch) {
+          return true
+        }
+      }
+    }
+
+    // Version has a -pre, but it's not one of the ones we like.
+    return false
+  }
+
+  return true
+}
diff --git a/node_modules/semver/classes/semver.js b/node_modules/semver/classes/semver.js
new file mode 100644
index 0000000..84e8459
--- /dev/null
+++ b/node_modules/semver/classes/semver.js
@@ -0,0 +1,302 @@
+const debug = require('../internal/debug')
+const { MAX_LENGTH, MAX_SAFE_INTEGER } = require('../internal/constants')
+const { safeRe: re, t } = require('../internal/re')
+
+const parseOptions = require('../internal/parse-options')
+const { compareIdentifiers } = require('../internal/identifiers')
+class SemVer {
+  constructor (version, options) {
+    options = parseOptions(options)
+
+    if (version instanceof SemVer) {
+      if (version.loose === !!options.loose &&
+          version.includePrerelease === !!options.includePrerelease) {
+        return version
+      } else {
+        version = version.version
+      }
+    } else if (typeof version !== 'string') {
+      throw new TypeError(`Invalid version. Must be a string. Got type "${typeof version}".`)
+    }
+
+    if (version.length > MAX_LENGTH) {
+      throw new TypeError(
+        `version is longer than ${MAX_LENGTH} characters`
+      )
+    }
+
+    debug('SemVer', version, options)
+    this.options = options
+    this.loose = !!options.loose
+    // this isn't actually relevant for versions, but keep it so that we
+    // don't run into trouble passing this.options around.
+    this.includePrerelease = !!options.includePrerelease
+
+    const m = version.trim().match(options.loose ? re[t.LOOSE] : re[t.FULL])
+
+    if (!m) {
+      throw new TypeError(`Invalid Version: ${version}`)
+    }
+
+    this.raw = version
+
+    // these are actually numbers
+    this.major = +m[1]
+    this.minor = +m[2]
+    this.patch = +m[3]
+
+    if (this.major > MAX_SAFE_INTEGER || this.major < 0) {
+      throw new TypeError('Invalid major version')
+    }
+
+    if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) {
+      throw new TypeError('Invalid minor version')
+    }
+
+    if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) {
+      throw new TypeError('Invalid patch version')
+    }
+
+    // numberify any prerelease numeric ids
+    if (!m[4]) {
+      this.prerelease = []
+    } else {
+      this.prerelease = m[4].split('.').map((id) => {
+        if (/^[0-9]+$/.test(id)) {
+          const num = +id
+          if (num >= 0 && num < MAX_SAFE_INTEGER) {
+            return num
+          }
+        }
+        return id
+      })
+    }
+
+    this.build = m[5] ? m[5].split('.') : []
+    this.format()
+  }
+
+  format () {
+    this.version = `${this.major}.${this.minor}.${this.patch}`
+    if (this.prerelease.length) {
+      this.version += `-${this.prerelease.join('.')}`
+    }
+    return this.version
+  }
+
+  toString () {
+    return this.version
+  }
+
+  compare (other) {
+    debug('SemVer.compare', this.version, this.options, other)
+    if (!(other instanceof SemVer)) {
+      if (typeof other === 'string' && other === this.version) {
+        return 0
+      }
+      other = new SemVer(other, this.options)
+    }
+
+    if (other.version === this.version) {
+      return 0
+    }
+
+    return this.compareMain(other) || this.comparePre(other)
+  }
+
+  compareMain (other) {
+    if (!(other instanceof SemVer)) {
+      other = new SemVer(other, this.options)
+    }
+
+    return (
+      compareIdentifiers(this.major, other.major) ||
+      compareIdentifiers(this.minor, other.minor) ||
+      compareIdentifiers(this.patch, other.patch)
+    )
+  }
+
+  comparePre (other) {
+    if (!(other instanceof SemVer)) {
+      other = new SemVer(other, this.options)
+    }
+
+    // NOT having a prerelease is > having one
+    if (this.prerelease.length && !other.prerelease.length) {
+      return -1
+    } else if (!this.prerelease.length && other.prerelease.length) {
+      return 1
+    } else if (!this.prerelease.length && !other.prerelease.length) {
+      return 0
+    }
+
+    let i = 0
+    do {
+      const a = this.prerelease[i]
+      const b = other.prerelease[i]
+      debug('prerelease compare', i, a, b)
+      if (a === undefined && b === undefined) {
+        return 0
+      } else if (b === undefined) {
+        return 1
+      } else if (a === undefined) {
+        return -1
+      } else if (a === b) {
+        continue
+      } else {
+        return compareIdentifiers(a, b)
+      }
+    } while (++i)
+  }
+
+  compareBuild (other) {
+    if (!(other instanceof SemVer)) {
+      other = new SemVer(other, this.options)
+    }
+
+    let i = 0
+    do {
+      const a = this.build[i]
+      const b = other.build[i]
+      debug('prerelease compare', i, a, b)
+      if (a === undefined && b === undefined) {
+        return 0
+      } else if (b === undefined) {
+        return 1
+      } else if (a === undefined) {
+        return -1
+      } else if (a === b) {
+        continue
+      } else {
+        return compareIdentifiers(a, b)
+      }
+    } while (++i)
+  }
+
+  // preminor will bump the version up to the next minor release, and immediately
+  // down to pre-release. premajor and prepatch work the same way.
+  inc (release, identifier, identifierBase) {
+    switch (release) {
+      case 'premajor':
+        this.prerelease.length = 0
+        this.patch = 0
+        this.minor = 0
+        this.major++
+        this.inc('pre', identifier, identifierBase)
+        break
+      case 'preminor':
+        this.prerelease.length = 0
+        this.patch = 0
+        this.minor++
+        this.inc('pre', identifier, identifierBase)
+        break
+      case 'prepatch':
+        // If this is already a prerelease, it will bump to the next version
+        // drop any prereleases that might already exist, since they are not
+        // relevant at this point.
+        this.prerelease.length = 0
+        this.inc('patch', identifier, identifierBase)
+        this.inc('pre', identifier, identifierBase)
+        break
+      // If the input is a non-prerelease version, this acts the same as
+      // prepatch.
+      case 'prerelease':
+        if (this.prerelease.length === 0) {
+          this.inc('patch', identifier, identifierBase)
+        }
+        this.inc('pre', identifier, identifierBase)
+        break
+
+      case 'major':
+        // If this is a pre-major version, bump up to the same major version.
+        // Otherwise increment major.
+        // 1.0.0-5 bumps to 1.0.0
+        // 1.1.0 bumps to 2.0.0
+        if (
+          this.minor !== 0 ||
+          this.patch !== 0 ||
+          this.prerelease.length === 0
+        ) {
+          this.major++
+        }
+        this.minor = 0
+        this.patch = 0
+        this.prerelease = []
+        break
+      case 'minor':
+        // If this is a pre-minor version, bump up to the same minor version.
+        // Otherwise increment minor.
+        // 1.2.0-5 bumps to 1.2.0
+        // 1.2.1 bumps to 1.3.0
+        if (this.patch !== 0 || this.prerelease.length === 0) {
+          this.minor++
+        }
+        this.patch = 0
+        this.prerelease = []
+        break
+      case 'patch':
+        // If this is not a pre-release version, it will increment the patch.
+        // If it is a pre-release it will bump up to the same patch version.
+        // 1.2.0-5 patches to 1.2.0
+        // 1.2.0 patches to 1.2.1
+        if (this.prerelease.length === 0) {
+          this.patch++
+        }
+        this.prerelease = []
+        break
+      // This probably shouldn't be used publicly.
+      // 1.0.0 'pre' would become 1.0.0-0 which is the wrong direction.
+      case 'pre': {
+        const base = Number(identifierBase) ? 1 : 0
+
+        if (!identifier && identifierBase === false) {
+          throw new Error('invalid increment argument: identifier is empty')
+        }
+
+        if (this.prerelease.length === 0) {
+          this.prerelease = [base]
+        } else {
+          let i = this.prerelease.length
+          while (--i >= 0) {
+            if (typeof this.prerelease[i] === 'number') {
+              this.prerelease[i]++
+              i = -2
+            }
+          }
+          if (i === -1) {
+            // didn't increment anything
+            if (identifier === this.prerelease.join('.') && identifierBase === false) {
+              throw new Error('invalid increment argument: identifier already exists')
+            }
+            this.prerelease.push(base)
+          }
+        }
+        if (identifier) {
+          // 1.2.0-beta.1 bumps to 1.2.0-beta.2,
+          // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0
+          let prerelease = [identifier, base]
+          if (identifierBase === false) {
+            prerelease = [identifier]
+          }
+          if (compareIdentifiers(this.prerelease[0], identifier) === 0) {
+            if (isNaN(this.prerelease[1])) {
+              this.prerelease = prerelease
+            }
+          } else {
+            this.prerelease = prerelease
+          }
+        }
+        break
+      }
+      default:
+        throw new Error(`invalid increment argument: ${release}`)
+    }
+    this.raw = this.format()
+    if (this.build.length) {
+      this.raw += `+${this.build.join('.')}`
+    }
+    return this
+  }
+}
+
+module.exports = SemVer
diff --git a/node_modules/semver/functions/clean.js b/node_modules/semver/functions/clean.js
new file mode 100644
index 0000000..811fe6b
--- /dev/null
+++ b/node_modules/semver/functions/clean.js
@@ -0,0 +1,6 @@
+const parse = require('./parse')
+const clean = (version, options) => {
+  const s = parse(version.trim().replace(/^[=v]+/, ''), options)
+  return s ? s.version : null
+}
+module.exports = clean
diff --git a/node_modules/semver/functions/cmp.js b/node_modules/semver/functions/cmp.js
new file mode 100644
index 0000000..4011909
--- /dev/null
+++ b/node_modules/semver/functions/cmp.js
@@ -0,0 +1,52 @@
+const eq = require('./eq')
+const neq = require('./neq')
+const gt = require('./gt')
+const gte = require('./gte')
+const lt = require('./lt')
+const lte = require('./lte')
+
+const cmp = (a, op, b, loose) => {
+  switch (op) {
+    case '===':
+      if (typeof a === 'object') {
+        a = a.version
+      }
+      if (typeof b === 'object') {
+        b = b.version
+      }
+      return a === b
+
+    case '!==':
+      if (typeof a === 'object') {
+        a = a.version
+      }
+      if (typeof b === 'object') {
+        b = b.version
+      }
+      return a !== b
+
+    case '':
+    case '=':
+    case '==':
+      return eq(a, b, loose)
+
+    case '!=':
+      return neq(a, b, loose)
+
+    case '>':
+      return gt(a, b, loose)
+
+    case '>=':
+      return gte(a, b, loose)
+
+    case '<':
+      return lt(a, b, loose)
+
+    case '<=':
+      return lte(a, b, loose)
+
+    default:
+      throw new TypeError(`Invalid operator: ${op}`)
+  }
+}
+module.exports = cmp
diff --git a/node_modules/semver/functions/coerce.js b/node_modules/semver/functions/coerce.js
new file mode 100644
index 0000000..febbff9
--- /dev/null
+++ b/node_modules/semver/functions/coerce.js
@@ -0,0 +1,52 @@
+const SemVer = require('../classes/semver')
+const parse = require('./parse')
+const { safeRe: re, t } = require('../internal/re')
+
+const coerce = (version, options) => {
+  if (version instanceof SemVer) {
+    return version
+  }
+
+  if (typeof version === 'number') {
+    version = String(version)
+  }
+
+  if (typeof version !== 'string') {
+    return null
+  }
+
+  options = options || {}
+
+  let match = null
+  if (!options.rtl) {
+    match = version.match(re[t.COERCE])
+  } else {
+    // Find the right-most coercible string that does not share
+    // a terminus with a more left-ward coercible string.
+    // Eg, '1.2.3.4' wants to coerce '2.3.4', not '3.4' or '4'
+    //
+    // Walk through the string checking with a /g regexp
+    // Manually set the index so as to pick up overlapping matches.
+    // Stop when we get a match that ends at the string end, since no
+    // coercible string can be more right-ward without the same terminus.
+    let next
+    while ((next = re[t.COERCERTL].exec(version)) &&
+        (!match || match.index + match[0].length !== version.length)
+    ) {
+      if (!match ||
+            next.index + next[0].length !== match.index + match[0].length) {
+        match = next
+      }
+      re[t.COERCERTL].lastIndex = next.index + next[1].length + next[2].length
+    }
+    // leave it in a clean state
+    re[t.COERCERTL].lastIndex = -1
+  }
+
+  if (match === null) {
+    return null
+  }
+
+  return parse(`${match[2]}.${match[3] || '0'}.${match[4] || '0'}`, options)
+}
+module.exports = coerce
diff --git a/node_modules/semver/functions/compare-build.js b/node_modules/semver/functions/compare-build.js
new file mode 100644
index 0000000..9eb881b
--- /dev/null
+++ b/node_modules/semver/functions/compare-build.js
@@ -0,0 +1,7 @@
+const SemVer = require('../classes/semver')
+const compareBuild = (a, b, loose) => {
+  const versionA = new SemVer(a, loose)
+  const versionB = new SemVer(b, loose)
+  return versionA.compare(versionB) || versionA.compareBuild(versionB)
+}
+module.exports = compareBuild
diff --git a/node_modules/semver/functions/compare-loose.js b/node_modules/semver/functions/compare-loose.js
new file mode 100644
index 0000000..4881fbe
--- /dev/null
+++ b/node_modules/semver/functions/compare-loose.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const compareLoose = (a, b) => compare(a, b, true)
+module.exports = compareLoose
diff --git a/node_modules/semver/functions/compare.js b/node_modules/semver/functions/compare.js
new file mode 100644
index 0000000..748b7af
--- /dev/null
+++ b/node_modules/semver/functions/compare.js
@@ -0,0 +1,5 @@
+const SemVer = require('../classes/semver')
+const compare = (a, b, loose) =>
+  new SemVer(a, loose).compare(new SemVer(b, loose))
+
+module.exports = compare
diff --git a/node_modules/semver/functions/diff.js b/node_modules/semver/functions/diff.js
new file mode 100644
index 0000000..fc224e3
--- /dev/null
+++ b/node_modules/semver/functions/diff.js
@@ -0,0 +1,65 @@
+const parse = require('./parse.js')
+
+const diff = (version1, version2) => {
+  const v1 = parse(version1, null, true)
+  const v2 = parse(version2, null, true)
+  const comparison = v1.compare(v2)
+
+  if (comparison === 0) {
+    return null
+  }
+
+  const v1Higher = comparison > 0
+  const highVersion = v1Higher ? v1 : v2
+  const lowVersion = v1Higher ? v2 : v1
+  const highHasPre = !!highVersion.prerelease.length
+  const lowHasPre = !!lowVersion.prerelease.length
+
+  if (lowHasPre && !highHasPre) {
+    // Going from prerelease -> no prerelease requires some special casing
+
+    // If the low version has only a major, then it will always be a major
+    // Some examples:
+    // 1.0.0-1 -> 1.0.0
+    // 1.0.0-1 -> 1.1.1
+    // 1.0.0-1 -> 2.0.0
+    if (!lowVersion.patch && !lowVersion.minor) {
+      return 'major'
+    }
+
+    // Otherwise it can be determined by checking the high version
+
+    if (highVersion.patch) {
+      // anything higher than a patch bump would result in the wrong version
+      return 'patch'
+    }
+
+    if (highVersion.minor) {
+      // anything higher than a minor bump would result in the wrong version
+      return 'minor'
+    }
+
+    // bumping major/minor/patch all have same result
+    return 'major'
+  }
+
+  // add the `pre` prefix if we are going to a prerelease version
+  const prefix = highHasPre ? 'pre' : ''
+
+  if (v1.major !== v2.major) {
+    return prefix + 'major'
+  }
+
+  if (v1.minor !== v2.minor) {
+    return prefix + 'minor'
+  }
+
+  if (v1.patch !== v2.patch) {
+    return prefix + 'patch'
+  }
+
+  // high and low are preleases
+  return 'prerelease'
+}
+
+module.exports = diff
diff --git a/node_modules/semver/functions/eq.js b/node_modules/semver/functions/eq.js
new file mode 100644
index 0000000..271fed9
--- /dev/null
+++ b/node_modules/semver/functions/eq.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const eq = (a, b, loose) => compare(a, b, loose) === 0
+module.exports = eq
diff --git a/node_modules/semver/functions/gt.js b/node_modules/semver/functions/gt.js
new file mode 100644
index 0000000..d9b2156
--- /dev/null
+++ b/node_modules/semver/functions/gt.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const gt = (a, b, loose) => compare(a, b, loose) > 0
+module.exports = gt
diff --git a/node_modules/semver/functions/gte.js b/node_modules/semver/functions/gte.js
new file mode 100644
index 0000000..5aeaa63
--- /dev/null
+++ b/node_modules/semver/functions/gte.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const gte = (a, b, loose) => compare(a, b, loose) >= 0
+module.exports = gte
diff --git a/node_modules/semver/functions/inc.js b/node_modules/semver/functions/inc.js
new file mode 100644
index 0000000..7670b1b
--- /dev/null
+++ b/node_modules/semver/functions/inc.js
@@ -0,0 +1,19 @@
+const SemVer = require('../classes/semver')
+
+const inc = (version, release, options, identifier, identifierBase) => {
+  if (typeof (options) === 'string') {
+    identifierBase = identifier
+    identifier = options
+    options = undefined
+  }
+
+  try {
+    return new SemVer(
+      version instanceof SemVer ? version.version : version,
+      options
+    ).inc(release, identifier, identifierBase).version
+  } catch (er) {
+    return null
+  }
+}
+module.exports = inc
diff --git a/node_modules/semver/functions/lt.js b/node_modules/semver/functions/lt.js
new file mode 100644
index 0000000..b440ab7
--- /dev/null
+++ b/node_modules/semver/functions/lt.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const lt = (a, b, loose) => compare(a, b, loose) < 0
+module.exports = lt
diff --git a/node_modules/semver/functions/lte.js b/node_modules/semver/functions/lte.js
new file mode 100644
index 0000000..6dcc956
--- /dev/null
+++ b/node_modules/semver/functions/lte.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const lte = (a, b, loose) => compare(a, b, loose) <= 0
+module.exports = lte
diff --git a/node_modules/semver/functions/major.js b/node_modules/semver/functions/major.js
new file mode 100644
index 0000000..4283165
--- /dev/null
+++ b/node_modules/semver/functions/major.js
@@ -0,0 +1,3 @@
+const SemVer = require('../classes/semver')
+const major = (a, loose) => new SemVer(a, loose).major
+module.exports = major
diff --git a/node_modules/semver/functions/minor.js b/node_modules/semver/functions/minor.js
new file mode 100644
index 0000000..57b3455
--- /dev/null
+++ b/node_modules/semver/functions/minor.js
@@ -0,0 +1,3 @@
+const SemVer = require('../classes/semver')
+const minor = (a, loose) => new SemVer(a, loose).minor
+module.exports = minor
diff --git a/node_modules/semver/functions/neq.js b/node_modules/semver/functions/neq.js
new file mode 100644
index 0000000..f944c01
--- /dev/null
+++ b/node_modules/semver/functions/neq.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const neq = (a, b, loose) => compare(a, b, loose) !== 0
+module.exports = neq
diff --git a/node_modules/semver/functions/parse.js b/node_modules/semver/functions/parse.js
new file mode 100644
index 0000000..459b3b1
--- /dev/null
+++ b/node_modules/semver/functions/parse.js
@@ -0,0 +1,16 @@
+const SemVer = require('../classes/semver')
+const parse = (version, options, throwErrors = false) => {
+  if (version instanceof SemVer) {
+    return version
+  }
+  try {
+    return new SemVer(version, options)
+  } catch (er) {
+    if (!throwErrors) {
+      return null
+    }
+    throw er
+  }
+}
+
+module.exports = parse
diff --git a/node_modules/semver/functions/patch.js b/node_modules/semver/functions/patch.js
new file mode 100644
index 0000000..63afca2
--- /dev/null
+++ b/node_modules/semver/functions/patch.js
@@ -0,0 +1,3 @@
+const SemVer = require('../classes/semver')
+const patch = (a, loose) => new SemVer(a, loose).patch
+module.exports = patch
diff --git a/node_modules/semver/functions/prerelease.js b/node_modules/semver/functions/prerelease.js
new file mode 100644
index 0000000..06aa132
--- /dev/null
+++ b/node_modules/semver/functions/prerelease.js
@@ -0,0 +1,6 @@
+const parse = require('./parse')
+const prerelease = (version, options) => {
+  const parsed = parse(version, options)
+  return (parsed && parsed.prerelease.length) ? parsed.prerelease : null
+}
+module.exports = prerelease
diff --git a/node_modules/semver/functions/rcompare.js b/node_modules/semver/functions/rcompare.js
new file mode 100644
index 0000000..0ac509e
--- /dev/null
+++ b/node_modules/semver/functions/rcompare.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const rcompare = (a, b, loose) => compare(b, a, loose)
+module.exports = rcompare
diff --git a/node_modules/semver/functions/rsort.js b/node_modules/semver/functions/rsort.js
new file mode 100644
index 0000000..82404c5
--- /dev/null
+++ b/node_modules/semver/functions/rsort.js
@@ -0,0 +1,3 @@
+const compareBuild = require('./compare-build')
+const rsort = (list, loose) => list.sort((a, b) => compareBuild(b, a, loose))
+module.exports = rsort
diff --git a/node_modules/semver/functions/satisfies.js b/node_modules/semver/functions/satisfies.js
new file mode 100644
index 0000000..50af1c1
--- /dev/null
+++ b/node_modules/semver/functions/satisfies.js
@@ -0,0 +1,10 @@
+const Range = require('../classes/range')
+const satisfies = (version, range, options) => {
+  try {
+    range = new Range(range, options)
+  } catch (er) {
+    return false
+  }
+  return range.test(version)
+}
+module.exports = satisfies
diff --git a/node_modules/semver/functions/sort.js b/node_modules/semver/functions/sort.js
new file mode 100644
index 0000000..4d10917
--- /dev/null
+++ b/node_modules/semver/functions/sort.js
@@ -0,0 +1,3 @@
+const compareBuild = require('./compare-build')
+const sort = (list, loose) => list.sort((a, b) => compareBuild(a, b, loose))
+module.exports = sort
diff --git a/node_modules/semver/functions/valid.js b/node_modules/semver/functions/valid.js
new file mode 100644
index 0000000..f27bae1
--- /dev/null
+++ b/node_modules/semver/functions/valid.js
@@ -0,0 +1,6 @@
+const parse = require('./parse')
+const valid = (version, options) => {
+  const v = parse(version, options)
+  return v ? v.version : null
+}
+module.exports = valid
diff --git a/node_modules/semver/index.js b/node_modules/semver/index.js
new file mode 100644
index 0000000..86d42ac
--- /dev/null
+++ b/node_modules/semver/index.js
@@ -0,0 +1,89 @@
+// just pre-load all the stuff that index.js lazily exports
+const internalRe = require('./internal/re')
+const constants = require('./internal/constants')
+const SemVer = require('./classes/semver')
+const identifiers = require('./internal/identifiers')
+const parse = require('./functions/parse')
+const valid = require('./functions/valid')
+const clean = require('./functions/clean')
+const inc = require('./functions/inc')
+const diff = require('./functions/diff')
+const major = require('./functions/major')
+const minor = require('./functions/minor')
+const patch = require('./functions/patch')
+const prerelease = require('./functions/prerelease')
+const compare = require('./functions/compare')
+const rcompare = require('./functions/rcompare')
+const compareLoose = require('./functions/compare-loose')
+const compareBuild = require('./functions/compare-build')
+const sort = require('./functions/sort')
+const rsort = require('./functions/rsort')
+const gt = require('./functions/gt')
+const lt = require('./functions/lt')
+const eq = require('./functions/eq')
+const neq = require('./functions/neq')
+const gte = require('./functions/gte')
+const lte = require('./functions/lte')
+const cmp = require('./functions/cmp')
+const coerce = require('./functions/coerce')
+const Comparator = require('./classes/comparator')
+const Range = require('./classes/range')
+const satisfies = require('./functions/satisfies')
+const toComparators = require('./ranges/to-comparators')
+const maxSatisfying = require('./ranges/max-satisfying')
+const minSatisfying = require('./ranges/min-satisfying')
+const minVersion = require('./ranges/min-version')
+const validRange = require('./ranges/valid')
+const outside = require('./ranges/outside')
+const gtr = require('./ranges/gtr')
+const ltr = require('./ranges/ltr')
+const intersects = require('./ranges/intersects')
+const simplifyRange = require('./ranges/simplify')
+const subset = require('./ranges/subset')
+module.exports = {
+  parse,
+  valid,
+  clean,
+  inc,
+  diff,
+  major,
+  minor,
+  patch,
+  prerelease,
+  compare,
+  rcompare,
+  compareLoose,
+  compareBuild,
+  sort,
+  rsort,
+  gt,
+  lt,
+  eq,
+  neq,
+  gte,
+  lte,
+  cmp,
+  coerce,
+  Comparator,
+  Range,
+  satisfies,
+  toComparators,
+  maxSatisfying,
+  minSatisfying,
+  minVersion,
+  validRange,
+  outside,
+  gtr,
+  ltr,
+  intersects,
+  simplifyRange,
+  subset,
+  SemVer,
+  re: internalRe.re,
+  src: internalRe.src,
+  tokens: internalRe.t,
+  SEMVER_SPEC_VERSION: constants.SEMVER_SPEC_VERSION,
+  RELEASE_TYPES: constants.RELEASE_TYPES,
+  compareIdentifiers: identifiers.compareIdentifiers,
+  rcompareIdentifiers: identifiers.rcompareIdentifiers,
+}
diff --git a/node_modules/semver/internal/constants.js b/node_modules/semver/internal/constants.js
new file mode 100644
index 0000000..94be1c5
--- /dev/null
+++ b/node_modules/semver/internal/constants.js
@@ -0,0 +1,35 @@
+// Note: this is the semver.org version of the spec that it implements
+// Not necessarily the package version of this code.
+const SEMVER_SPEC_VERSION = '2.0.0'
+
+const MAX_LENGTH = 256
+const MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER ||
+/* istanbul ignore next */ 9007199254740991
+
+// Max safe segment length for coercion.
+const MAX_SAFE_COMPONENT_LENGTH = 16
+
+// Max safe length for a build identifier. The max length minus 6 characters for
+// the shortest version with a build 0.0.0+BUILD.
+const MAX_SAFE_BUILD_LENGTH = MAX_LENGTH - 6
+
+const RELEASE_TYPES = [
+  'major',
+  'premajor',
+  'minor',
+  'preminor',
+  'patch',
+  'prepatch',
+  'prerelease',
+]
+
+module.exports = {
+  MAX_LENGTH,
+  MAX_SAFE_COMPONENT_LENGTH,
+  MAX_SAFE_BUILD_LENGTH,
+  MAX_SAFE_INTEGER,
+  RELEASE_TYPES,
+  SEMVER_SPEC_VERSION,
+  FLAG_INCLUDE_PRERELEASE: 0b001,
+  FLAG_LOOSE: 0b010,
+}
diff --git a/node_modules/semver/internal/debug.js b/node_modules/semver/internal/debug.js
new file mode 100644
index 0000000..1c00e13
--- /dev/null
+++ b/node_modules/semver/internal/debug.js
@@ -0,0 +1,9 @@
+const debug = (
+  typeof process === 'object' &&
+  process.env &&
+  process.env.NODE_DEBUG &&
+  /\bsemver\b/i.test(process.env.NODE_DEBUG)
+) ? (...args) => console.error('SEMVER', ...args)
+  : () => {}
+
+module.exports = debug
diff --git a/node_modules/semver/internal/identifiers.js b/node_modules/semver/internal/identifiers.js
new file mode 100644
index 0000000..e612d0a
--- /dev/null
+++ b/node_modules/semver/internal/identifiers.js
@@ -0,0 +1,23 @@
+const numeric = /^[0-9]+$/
+const compareIdentifiers = (a, b) => {
+  const anum = numeric.test(a)
+  const bnum = numeric.test(b)
+
+  if (anum && bnum) {
+    a = +a
+    b = +b
+  }
+
+  return a === b ? 0
+    : (anum && !bnum) ? -1
+    : (bnum && !anum) ? 1
+    : a < b ? -1
+    : 1
+}
+
+const rcompareIdentifiers = (a, b) => compareIdentifiers(b, a)
+
+module.exports = {
+  compareIdentifiers,
+  rcompareIdentifiers,
+}
diff --git a/node_modules/semver/internal/parse-options.js b/node_modules/semver/internal/parse-options.js
new file mode 100644
index 0000000..10d64ce
--- /dev/null
+++ b/node_modules/semver/internal/parse-options.js
@@ -0,0 +1,15 @@
+// parse out just the options we care about
+const looseOption = Object.freeze({ loose: true })
+const emptyOpts = Object.freeze({ })
+const parseOptions = options => {
+  if (!options) {
+    return emptyOpts
+  }
+
+  if (typeof options !== 'object') {
+    return looseOption
+  }
+
+  return options
+}
+module.exports = parseOptions
diff --git a/node_modules/semver/internal/re.js b/node_modules/semver/internal/re.js
new file mode 100644
index 0000000..21150b3
--- /dev/null
+++ b/node_modules/semver/internal/re.js
@@ -0,0 +1,212 @@
+const {
+  MAX_SAFE_COMPONENT_LENGTH,
+  MAX_SAFE_BUILD_LENGTH,
+  MAX_LENGTH,
+} = require('./constants')
+const debug = require('./debug')
+exports = module.exports = {}
+
+// The actual regexps go on exports.re
+const re = exports.re = []
+const safeRe = exports.safeRe = []
+const src = exports.src = []
+const t = exports.t = {}
+let R = 0
+
+const LETTERDASHNUMBER = '[a-zA-Z0-9-]'
+
+// Replace some greedy regex tokens to prevent regex dos issues. These regex are
+// used internally via the safeRe object since all inputs in this library get
+// normalized first to trim and collapse all extra whitespace. The original
+// regexes are exported for userland consumption and lower level usage. A
+// future breaking change could export the safer regex only with a note that
+// all input should have extra whitespace removed.
+const safeRegexReplacements = [
+  ['\\s', 1],
+  ['\\d', MAX_LENGTH],
+  [LETTERDASHNUMBER, MAX_SAFE_BUILD_LENGTH],
+]
+
+const makeSafeRegex = (value) => {
+  for (const [token, max] of safeRegexReplacements) {
+    value = value
+      .split(`${token}*`).join(`${token}{0,${max}}`)
+      .split(`${token}+`).join(`${token}{1,${max}}`)
+  }
+  return value
+}
+
+const createToken = (name, value, isGlobal) => {
+  const safe = makeSafeRegex(value)
+  const index = R++
+  debug(name, index, value)
+  t[name] = index
+  src[index] = value
+  re[index] = new RegExp(value, isGlobal ? 'g' : undefined)
+  safeRe[index] = new RegExp(safe, isGlobal ? 'g' : undefined)
+}
+
+// The following Regular Expressions can be used for tokenizing,
+// validating, and parsing SemVer version strings.
+
+// ## Numeric Identifier
+// A single `0`, or a non-zero digit followed by zero or more digits.
+
+createToken('NUMERICIDENTIFIER', '0|[1-9]\\d*')
+createToken('NUMERICIDENTIFIERLOOSE', '\\d+')
+
+// ## Non-numeric Identifier
+// Zero or more digits, followed by a letter or hyphen, and then zero or
+// more letters, digits, or hyphens.
+
+createToken('NONNUMERICIDENTIFIER', `\\d*[a-zA-Z-]${LETTERDASHNUMBER}*`)
+
+// ## Main Version
+// Three dot-separated numeric identifiers.
+
+createToken('MAINVERSION', `(${src[t.NUMERICIDENTIFIER]})\\.` +
+                   `(${src[t.NUMERICIDENTIFIER]})\\.` +
+                   `(${src[t.NUMERICIDENTIFIER]})`)
+
+createToken('MAINVERSIONLOOSE', `(${src[t.NUMERICIDENTIFIERLOOSE]})\\.` +
+                        `(${src[t.NUMERICIDENTIFIERLOOSE]})\\.` +
+                        `(${src[t.NUMERICIDENTIFIERLOOSE]})`)
+
+// ## Pre-release Version Identifier
+// A numeric identifier, or a non-numeric identifier.
+
+createToken('PRERELEASEIDENTIFIER', `(?:${src[t.NUMERICIDENTIFIER]
+}|${src[t.NONNUMERICIDENTIFIER]})`)
+
+createToken('PRERELEASEIDENTIFIERLOOSE', `(?:${src[t.NUMERICIDENTIFIERLOOSE]
+}|${src[t.NONNUMERICIDENTIFIER]})`)
+
+// ## Pre-release Version
+// Hyphen, followed by one or more dot-separated pre-release version
+// identifiers.
+
+createToken('PRERELEASE', `(?:-(${src[t.PRERELEASEIDENTIFIER]
+}(?:\\.${src[t.PRERELEASEIDENTIFIER]})*))`)
+
+createToken('PRERELEASELOOSE', `(?:-?(${src[t.PRERELEASEIDENTIFIERLOOSE]
+}(?:\\.${src[t.PRERELEASEIDENTIFIERLOOSE]})*))`)
+
+// ## Build Metadata Identifier
+// Any combination of digits, letters, or hyphens.
+
+createToken('BUILDIDENTIFIER', `${LETTERDASHNUMBER}+`)
+
+// ## Build Metadata
+// Plus sign, followed by one or more period-separated build metadata
+// identifiers.
+
+createToken('BUILD', `(?:\\+(${src[t.BUILDIDENTIFIER]
+}(?:\\.${src[t.BUILDIDENTIFIER]})*))`)
+
+// ## Full Version String
+// A main version, followed optionally by a pre-release version and
+// build metadata.
+
+// Note that the only major, minor, patch, and pre-release sections of
+// the version string are capturing groups.  The build metadata is not a
+// capturing group, because it should not ever be used in version
+// comparison.
+
+createToken('FULLPLAIN', `v?${src[t.MAINVERSION]
+}${src[t.PRERELEASE]}?${
+  src[t.BUILD]}?`)
+
+createToken('FULL', `^${src[t.FULLPLAIN]}$`)
+
+// like full, but allows v1.2.3 and =1.2.3, which people do sometimes.
+// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty
+// common in the npm registry.
+createToken('LOOSEPLAIN', `[v=\\s]*${src[t.MAINVERSIONLOOSE]
+}${src[t.PRERELEASELOOSE]}?${
+  src[t.BUILD]}?`)
+
+createToken('LOOSE', `^${src[t.LOOSEPLAIN]}$`)
+
+createToken('GTLT', '((?:<|>)?=?)')
+
+// Something like "2.*" or "1.2.x".
+// Note that "x.x" is a valid xRange identifer, meaning "any version"
+// Only the first item is strictly required.
+createToken('XRANGEIDENTIFIERLOOSE', `${src[t.NUMERICIDENTIFIERLOOSE]}|x|X|\\*`)
+createToken('XRANGEIDENTIFIER', `${src[t.NUMERICIDENTIFIER]}|x|X|\\*`)
+
+createToken('XRANGEPLAIN', `[v=\\s]*(${src[t.XRANGEIDENTIFIER]})` +
+                   `(?:\\.(${src[t.XRANGEIDENTIFIER]})` +
+                   `(?:\\.(${src[t.XRANGEIDENTIFIER]})` +
+                   `(?:${src[t.PRERELEASE]})?${
+                     src[t.BUILD]}?` +
+                   `)?)?`)
+
+createToken('XRANGEPLAINLOOSE', `[v=\\s]*(${src[t.XRANGEIDENTIFIERLOOSE]})` +
+                        `(?:\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` +
+                        `(?:\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` +
+                        `(?:${src[t.PRERELEASELOOSE]})?${
+                          src[t.BUILD]}?` +
+                        `)?)?`)
+
+createToken('XRANGE', `^${src[t.GTLT]}\\s*${src[t.XRANGEPLAIN]}$`)
+createToken('XRANGELOOSE', `^${src[t.GTLT]}\\s*${src[t.XRANGEPLAINLOOSE]}$`)
+
+// Coercion.
+// Extract anything that could conceivably be a part of a valid semver
+createToken('COERCE', `${'(^|[^\\d])' +
+              '(\\d{1,'}${MAX_SAFE_COMPONENT_LENGTH}})` +
+              `(?:\\.(\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?` +
+              `(?:\\.(\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?` +
+              `(?:$|[^\\d])`)
+createToken('COERCERTL', src[t.COERCE], true)
+
+// Tilde ranges.
+// Meaning is "reasonably at or greater than"
+createToken('LONETILDE', '(?:~>?)')
+
+createToken('TILDETRIM', `(\\s*)${src[t.LONETILDE]}\\s+`, true)
+exports.tildeTrimReplace = '$1~'
+
+createToken('TILDE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAIN]}$`)
+createToken('TILDELOOSE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAINLOOSE]}$`)
+
+// Caret ranges.
+// Meaning is "at least and backwards compatible with"
+createToken('LONECARET', '(?:\\^)')
+
+createToken('CARETTRIM', `(\\s*)${src[t.LONECARET]}\\s+`, true)
+exports.caretTrimReplace = '$1^'
+
+createToken('CARET', `^${src[t.LONECARET]}${src[t.XRANGEPLAIN]}$`)
+createToken('CARETLOOSE', `^${src[t.LONECARET]}${src[t.XRANGEPLAINLOOSE]}$`)
+
+// A simple gt/lt/eq thing, or just "" to indicate "any version"
+createToken('COMPARATORLOOSE', `^${src[t.GTLT]}\\s*(${src[t.LOOSEPLAIN]})$|^$`)
+createToken('COMPARATOR', `^${src[t.GTLT]}\\s*(${src[t.FULLPLAIN]})$|^$`)
+
+// An expression to strip any whitespace between the gtlt and the thing
+// it modifies, so that `> 1.2.3` ==> `>1.2.3`
+createToken('COMPARATORTRIM', `(\\s*)${src[t.GTLT]
+}\\s*(${src[t.LOOSEPLAIN]}|${src[t.XRANGEPLAIN]})`, true)
+exports.comparatorTrimReplace = '$1$2$3'
+
+// Something like `1.2.3 - 1.2.4`
+// Note that these all use the loose form, because they'll be
+// checked against either the strict or loose comparator form
+// later.
+createToken('HYPHENRANGE', `^\\s*(${src[t.XRANGEPLAIN]})` +
+                   `\\s+-\\s+` +
+                   `(${src[t.XRANGEPLAIN]})` +
+                   `\\s*$`)
+
+createToken('HYPHENRANGELOOSE', `^\\s*(${src[t.XRANGEPLAINLOOSE]})` +
+                        `\\s+-\\s+` +
+                        `(${src[t.XRANGEPLAINLOOSE]})` +
+                        `\\s*$`)
+
+// Star ranges basically just allow anything at all.
+createToken('STAR', '(<|>)?=?\\s*\\*')
+// >=0.0.0 is like a star
+createToken('GTE0', '^\\s*>=\\s*0\\.0\\.0\\s*$')
+createToken('GTE0PRE', '^\\s*>=\\s*0\\.0\\.0-0\\s*$')
diff --git a/node_modules/semver/package.json b/node_modules/semver/package.json
new file mode 100644
index 0000000..c145eca
--- /dev/null
+++ b/node_modules/semver/package.json
@@ -0,0 +1,87 @@
+{
+  "name": "semver",
+  "version": "7.5.4",
+  "description": "The semantic version parser used by npm.",
+  "main": "index.js",
+  "scripts": {
+    "test": "tap",
+    "snap": "tap",
+    "lint": "eslint \"**/*.js\"",
+    "postlint": "template-oss-check",
+    "lintfix": "npm run lint -- --fix",
+    "posttest": "npm run lint",
+    "template-oss-apply": "template-oss-apply --force"
+  },
+  "devDependencies": {
+    "@npmcli/eslint-config": "^4.0.0",
+    "@npmcli/template-oss": "4.17.0",
+    "tap": "^16.0.0"
+  },
+  "license": "ISC",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/node-semver.git"
+  },
+  "bin": {
+    "semver": "bin/semver.js"
+  },
+  "files": [
+    "bin/",
+    "lib/",
+    "classes/",
+    "functions/",
+    "internal/",
+    "ranges/",
+    "index.js",
+    "preload.js",
+    "range.bnf"
+  ],
+  "tap": {
+    "timeout": 30,
+    "coverage-map": "map.js",
+    "nyc-arg": [
+      "--exclude",
+      "tap-snapshots/**"
+    ]
+  },
+  "engines": {
+    "node": ">=10"
+  },
+  "dependencies": {
+    "lru-cache": "^6.0.0"
+  },
+  "author": "GitHub Inc.",
+  "templateOSS": {
+    "//@npmcli/template-oss": "This file is partially managed by @npmcli/template-oss. Edits may be overwritten.",
+    "version": "4.17.0",
+    "engines": ">=10",
+    "ciVersions": [
+      "10.0.0",
+      "10.x",
+      "12.x",
+      "14.x",
+      "16.x",
+      "18.x"
+    ],
+    "npmSpec": "8",
+    "distPaths": [
+      "classes/",
+      "functions/",
+      "internal/",
+      "ranges/",
+      "index.js",
+      "preload.js",
+      "range.bnf"
+    ],
+    "allowPaths": [
+      "/classes/",
+      "/functions/",
+      "/internal/",
+      "/ranges/",
+      "/index.js",
+      "/preload.js",
+      "/range.bnf"
+    ],
+    "publish": "true"
+  }
+}
diff --git a/node_modules/semver/preload.js b/node_modules/semver/preload.js
new file mode 100644
index 0000000..947cd4f
--- /dev/null
+++ b/node_modules/semver/preload.js
@@ -0,0 +1,2 @@
+// XXX remove in v8 or beyond
+module.exports = require('./index.js')
diff --git a/node_modules/semver/range.bnf b/node_modules/semver/range.bnf
new file mode 100644
index 0000000..d4c6ae0
--- /dev/null
+++ b/node_modules/semver/range.bnf
@@ -0,0 +1,16 @@
+range-set  ::= range ( logical-or range ) *
+logical-or ::= ( ' ' ) * '||' ( ' ' ) *
+range      ::= hyphen | simple ( ' ' simple ) * | ''
+hyphen     ::= partial ' - ' partial
+simple     ::= primitive | partial | tilde | caret
+primitive  ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
+partial    ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
+xr         ::= 'x' | 'X' | '*' | nr
+nr         ::= '0' | [1-9] ( [0-9] ) *
+tilde      ::= '~' partial
+caret      ::= '^' partial
+qualifier  ::= ( '-' pre )? ( '+' build )?
+pre        ::= parts
+build      ::= parts
+parts      ::= part ( '.' part ) *
+part       ::= nr | [-0-9A-Za-z]+
diff --git a/node_modules/semver/ranges/gtr.js b/node_modules/semver/ranges/gtr.js
new file mode 100644
index 0000000..db7e355
--- /dev/null
+++ b/node_modules/semver/ranges/gtr.js
@@ -0,0 +1,4 @@
+// Determine if version is greater than all the versions possible in the range.
+const outside = require('./outside')
+const gtr = (version, range, options) => outside(version, range, '>', options)
+module.exports = gtr
diff --git a/node_modules/semver/ranges/intersects.js b/node_modules/semver/ranges/intersects.js
new file mode 100644
index 0000000..e0e9b7c
--- /dev/null
+++ b/node_modules/semver/ranges/intersects.js
@@ -0,0 +1,7 @@
+const Range = require('../classes/range')
+const intersects = (r1, r2, options) => {
+  r1 = new Range(r1, options)
+  r2 = new Range(r2, options)
+  return r1.intersects(r2, options)
+}
+module.exports = intersects
diff --git a/node_modules/semver/ranges/ltr.js b/node_modules/semver/ranges/ltr.js
new file mode 100644
index 0000000..528a885
--- /dev/null
+++ b/node_modules/semver/ranges/ltr.js
@@ -0,0 +1,4 @@
+const outside = require('./outside')
+// Determine if version is less than all the versions possible in the range
+const ltr = (version, range, options) => outside(version, range, '<', options)
+module.exports = ltr
diff --git a/node_modules/semver/ranges/max-satisfying.js b/node_modules/semver/ranges/max-satisfying.js
new file mode 100644
index 0000000..6e3d993
--- /dev/null
+++ b/node_modules/semver/ranges/max-satisfying.js
@@ -0,0 +1,25 @@
+const SemVer = require('../classes/semver')
+const Range = require('../classes/range')
+
+const maxSatisfying = (versions, range, options) => {
+  let max = null
+  let maxSV = null
+  let rangeObj = null
+  try {
+    rangeObj = new Range(range, options)
+  } catch (er) {
+    return null
+  }
+  versions.forEach((v) => {
+    if (rangeObj.test(v)) {
+      // satisfies(v, range, options)
+      if (!max || maxSV.compare(v) === -1) {
+        // compare(max, v, true)
+        max = v
+        maxSV = new SemVer(max, options)
+      }
+    }
+  })
+  return max
+}
+module.exports = maxSatisfying
diff --git a/node_modules/semver/ranges/min-satisfying.js b/node_modules/semver/ranges/min-satisfying.js
new file mode 100644
index 0000000..9b60974
--- /dev/null
+++ b/node_modules/semver/ranges/min-satisfying.js
@@ -0,0 +1,24 @@
+const SemVer = require('../classes/semver')
+const Range = require('../classes/range')
+const minSatisfying = (versions, range, options) => {
+  let min = null
+  let minSV = null
+  let rangeObj = null
+  try {
+    rangeObj = new Range(range, options)
+  } catch (er) {
+    return null
+  }
+  versions.forEach((v) => {
+    if (rangeObj.test(v)) {
+      // satisfies(v, range, options)
+      if (!min || minSV.compare(v) === 1) {
+        // compare(min, v, true)
+        min = v
+        minSV = new SemVer(min, options)
+      }
+    }
+  })
+  return min
+}
+module.exports = minSatisfying
diff --git a/node_modules/semver/ranges/min-version.js b/node_modules/semver/ranges/min-version.js
new file mode 100644
index 0000000..350e1f7
--- /dev/null
+++ b/node_modules/semver/ranges/min-version.js
@@ -0,0 +1,61 @@
+const SemVer = require('../classes/semver')
+const Range = require('../classes/range')
+const gt = require('../functions/gt')
+
+const minVersion = (range, loose) => {
+  range = new Range(range, loose)
+
+  let minver = new SemVer('0.0.0')
+  if (range.test(minver)) {
+    return minver
+  }
+
+  minver = new SemVer('0.0.0-0')
+  if (range.test(minver)) {
+    return minver
+  }
+
+  minver = null
+  for (let i = 0; i < range.set.length; ++i) {
+    const comparators = range.set[i]
+
+    let setMin = null
+    comparators.forEach((comparator) => {
+      // Clone to avoid manipulating the comparator's semver object.
+      const compver = new SemVer(comparator.semver.version)
+      switch (comparator.operator) {
+        case '>':
+          if (compver.prerelease.length === 0) {
+            compver.patch++
+          } else {
+            compver.prerelease.push(0)
+          }
+          compver.raw = compver.format()
+          /* fallthrough */
+        case '':
+        case '>=':
+          if (!setMin || gt(compver, setMin)) {
+            setMin = compver
+          }
+          break
+        case '<':
+        case '<=':
+          /* Ignore maximum versions */
+          break
+        /* istanbul ignore next */
+        default:
+          throw new Error(`Unexpected operation: ${comparator.operator}`)
+      }
+    })
+    if (setMin && (!minver || gt(minver, setMin))) {
+      minver = setMin
+    }
+  }
+
+  if (minver && range.test(minver)) {
+    return minver
+  }
+
+  return null
+}
+module.exports = minVersion
diff --git a/node_modules/semver/ranges/outside.js b/node_modules/semver/ranges/outside.js
new file mode 100644
index 0000000..ae99b10
--- /dev/null
+++ b/node_modules/semver/ranges/outside.js
@@ -0,0 +1,80 @@
+const SemVer = require('../classes/semver')
+const Comparator = require('../classes/comparator')
+const { ANY } = Comparator
+const Range = require('../classes/range')
+const satisfies = require('../functions/satisfies')
+const gt = require('../functions/gt')
+const lt = require('../functions/lt')
+const lte = require('../functions/lte')
+const gte = require('../functions/gte')
+
+const outside = (version, range, hilo, options) => {
+  version = new SemVer(version, options)
+  range = new Range(range, options)
+
+  let gtfn, ltefn, ltfn, comp, ecomp
+  switch (hilo) {
+    case '>':
+      gtfn = gt
+      ltefn = lte
+      ltfn = lt
+      comp = '>'
+      ecomp = '>='
+      break
+    case '<':
+      gtfn = lt
+      ltefn = gte
+      ltfn = gt
+      comp = '<'
+      ecomp = '<='
+      break
+    default:
+      throw new TypeError('Must provide a hilo val of "<" or ">"')
+  }
+
+  // If it satisfies the range it is not outside
+  if (satisfies(version, range, options)) {
+    return false
+  }
+
+  // From now on, variable terms are as if we're in "gtr" mode.
+  // but note that everything is flipped for the "ltr" function.
+
+  for (let i = 0; i < range.set.length; ++i) {
+    const comparators = range.set[i]
+
+    let high = null
+    let low = null
+
+    comparators.forEach((comparator) => {
+      if (comparator.semver === ANY) {
+        comparator = new Comparator('>=0.0.0')
+      }
+      high = high || comparator
+      low = low || comparator
+      if (gtfn(comparator.semver, high.semver, options)) {
+        high = comparator
+      } else if (ltfn(comparator.semver, low.semver, options)) {
+        low = comparator
+      }
+    })
+
+    // If the edge version comparator has a operator then our version
+    // isn't outside it
+    if (high.operator === comp || high.operator === ecomp) {
+      return false
+    }
+
+    // If the lowest version comparator has an operator and our version
+    // is less than it then it isn't higher than the range
+    if ((!low.operator || low.operator === comp) &&
+        ltefn(version, low.semver)) {
+      return false
+    } else if (low.operator === ecomp && ltfn(version, low.semver)) {
+      return false
+    }
+  }
+  return true
+}
+
+module.exports = outside
diff --git a/node_modules/semver/ranges/simplify.js b/node_modules/semver/ranges/simplify.js
new file mode 100644
index 0000000..618d5b6
--- /dev/null
+++ b/node_modules/semver/ranges/simplify.js
@@ -0,0 +1,47 @@
+// given a set of versions and a range, create a "simplified" range
+// that includes the same versions that the original range does
+// If the original range is shorter than the simplified one, return that.
+const satisfies = require('../functions/satisfies.js')
+const compare = require('../functions/compare.js')
+module.exports = (versions, range, options) => {
+  const set = []
+  let first = null
+  let prev = null
+  const v = versions.sort((a, b) => compare(a, b, options))
+  for (const version of v) {
+    const included = satisfies(version, range, options)
+    if (included) {
+      prev = version
+      if (!first) {
+        first = version
+      }
+    } else {
+      if (prev) {
+        set.push([first, prev])
+      }
+      prev = null
+      first = null
+    }
+  }
+  if (first) {
+    set.push([first, null])
+  }
+
+  const ranges = []
+  for (const [min, max] of set) {
+    if (min === max) {
+      ranges.push(min)
+    } else if (!max && min === v[0]) {
+      ranges.push('*')
+    } else if (!max) {
+      ranges.push(`>=${min}`)
+    } else if (min === v[0]) {
+      ranges.push(`<=${max}`)
+    } else {
+      ranges.push(`${min} - ${max}`)
+    }
+  }
+  const simplified = ranges.join(' || ')
+  const original = typeof range.raw === 'string' ? range.raw : String(range)
+  return simplified.length < original.length ? simplified : range
+}
diff --git a/node_modules/semver/ranges/subset.js b/node_modules/semver/ranges/subset.js
new file mode 100644
index 0000000..1e5c268
--- /dev/null
+++ b/node_modules/semver/ranges/subset.js
@@ -0,0 +1,247 @@
+const Range = require('../classes/range.js')
+const Comparator = require('../classes/comparator.js')
+const { ANY } = Comparator
+const satisfies = require('../functions/satisfies.js')
+const compare = require('../functions/compare.js')
+
+// Complex range `r1 || r2 || ...` is a subset of `R1 || R2 || ...` iff:
+// - Every simple range `r1, r2, ...` is a null set, OR
+// - Every simple range `r1, r2, ...` which is not a null set is a subset of
+//   some `R1, R2, ...`
+//
+// Simple range `c1 c2 ...` is a subset of simple range `C1 C2 ...` iff:
+// - If c is only the ANY comparator
+//   - If C is only the ANY comparator, return true
+//   - Else if in prerelease mode, return false
+//   - else replace c with `[>=0.0.0]`
+// - If C is only the ANY comparator
+//   - if in prerelease mode, return true
+//   - else replace C with `[>=0.0.0]`
+// - Let EQ be the set of = comparators in c
+// - If EQ is more than one, return true (null set)
+// - Let GT be the highest > or >= comparator in c
+// - Let LT be the lowest < or <= comparator in c
+// - If GT and LT, and GT.semver > LT.semver, return true (null set)
+// - If any C is a = range, and GT or LT are set, return false
+// - If EQ
+//   - If GT, and EQ does not satisfy GT, return true (null set)
+//   - If LT, and EQ does not satisfy LT, return true (null set)
+//   - If EQ satisfies every C, return true
+//   - Else return false
+// - If GT
+//   - If GT.semver is lower than any > or >= comp in C, return false
+//   - If GT is >=, and GT.semver does not satisfy every C, return false
+//   - If GT.semver has a prerelease, and not in prerelease mode
+//     - If no C has a prerelease and the GT.semver tuple, return false
+// - If LT
+//   - If LT.semver is greater than any < or <= comp in C, return false
+//   - If LT is <=, and LT.semver does not satisfy every C, return false
+//   - If GT.semver has a prerelease, and not in prerelease mode
+//     - If no C has a prerelease and the LT.semver tuple, return false
+// - Else return true
+
+const subset = (sub, dom, options = {}) => {
+  if (sub === dom) {
+    return true
+  }
+
+  sub = new Range(sub, options)
+  dom = new Range(dom, options)
+  let sawNonNull = false
+
+  OUTER: for (const simpleSub of sub.set) {
+    for (const simpleDom of dom.set) {
+      const isSub = simpleSubset(simpleSub, simpleDom, options)
+      sawNonNull = sawNonNull || isSub !== null
+      if (isSub) {
+        continue OUTER
+      }
+    }
+    // the null set is a subset of everything, but null simple ranges in
+    // a complex range should be ignored.  so if we saw a non-null range,
+    // then we know this isn't a subset, but if EVERY simple range was null,
+    // then it is a subset.
+    if (sawNonNull) {
+      return false
+    }
+  }
+  return true
+}
+
+const minimumVersionWithPreRelease = [new Comparator('>=0.0.0-0')]
+const minimumVersion = [new Comparator('>=0.0.0')]
+
+const simpleSubset = (sub, dom, options) => {
+  if (sub === dom) {
+    return true
+  }
+
+  if (sub.length === 1 && sub[0].semver === ANY) {
+    if (dom.length === 1 && dom[0].semver === ANY) {
+      return true
+    } else if (options.includePrerelease) {
+      sub = minimumVersionWithPreRelease
+    } else {
+      sub = minimumVersion
+    }
+  }
+
+  if (dom.length === 1 && dom[0].semver === ANY) {
+    if (options.includePrerelease) {
+      return true
+    } else {
+      dom = minimumVersion
+    }
+  }
+
+  const eqSet = new Set()
+  let gt, lt
+  for (const c of sub) {
+    if (c.operator === '>' || c.operator === '>=') {
+      gt = higherGT(gt, c, options)
+    } else if (c.operator === '<' || c.operator === '<=') {
+      lt = lowerLT(lt, c, options)
+    } else {
+      eqSet.add(c.semver)
+    }
+  }
+
+  if (eqSet.size > 1) {
+    return null
+  }
+
+  let gtltComp
+  if (gt && lt) {
+    gtltComp = compare(gt.semver, lt.semver, options)
+    if (gtltComp > 0) {
+      return null
+    } else if (gtltComp === 0 && (gt.operator !== '>=' || lt.operator !== '<=')) {
+      return null
+    }
+  }
+
+  // will iterate one or zero times
+  for (const eq of eqSet) {
+    if (gt && !satisfies(eq, String(gt), options)) {
+      return null
+    }
+
+    if (lt && !satisfies(eq, String(lt), options)) {
+      return null
+    }
+
+    for (const c of dom) {
+      if (!satisfies(eq, String(c), options)) {
+        return false
+      }
+    }
+
+    return true
+  }
+
+  let higher, lower
+  let hasDomLT, hasDomGT
+  // if the subset has a prerelease, we need a comparator in the superset
+  // with the same tuple and a prerelease, or it's not a subset
+  let needDomLTPre = lt &&
+    !options.includePrerelease &&
+    lt.semver.prerelease.length ? lt.semver : false
+  let needDomGTPre = gt &&
+    !options.includePrerelease &&
+    gt.semver.prerelease.length ? gt.semver : false
+  // exception: <1.2.3-0 is the same as <1.2.3
+  if (needDomLTPre && needDomLTPre.prerelease.length === 1 &&
+      lt.operator === '<' && needDomLTPre.prerelease[0] === 0) {
+    needDomLTPre = false
+  }
+
+  for (const c of dom) {
+    hasDomGT = hasDomGT || c.operator === '>' || c.operator === '>='
+    hasDomLT = hasDomLT || c.operator === '<' || c.operator === '<='
+    if (gt) {
+      if (needDomGTPre) {
+        if (c.semver.prerelease && c.semver.prerelease.length &&
+            c.semver.major === needDomGTPre.major &&
+            c.semver.minor === needDomGTPre.minor &&
+            c.semver.patch === needDomGTPre.patch) {
+          needDomGTPre = false
+        }
+      }
+      if (c.operator === '>' || c.operator === '>=') {
+        higher = higherGT(gt, c, options)
+        if (higher === c && higher !== gt) {
+          return false
+        }
+      } else if (gt.operator === '>=' && !satisfies(gt.semver, String(c), options)) {
+        return false
+      }
+    }
+    if (lt) {
+      if (needDomLTPre) {
+        if (c.semver.prerelease && c.semver.prerelease.length &&
+            c.semver.major === needDomLTPre.major &&
+            c.semver.minor === needDomLTPre.minor &&
+            c.semver.patch === needDomLTPre.patch) {
+          needDomLTPre = false
+        }
+      }
+      if (c.operator === '<' || c.operator === '<=') {
+        lower = lowerLT(lt, c, options)
+        if (lower === c && lower !== lt) {
+          return false
+        }
+      } else if (lt.operator === '<=' && !satisfies(lt.semver, String(c), options)) {
+        return false
+      }
+    }
+    if (!c.operator && (lt || gt) && gtltComp !== 0) {
+      return false
+    }
+  }
+
+  // if there was a < or >, and nothing in the dom, then must be false
+  // UNLESS it was limited by another range in the other direction.
+  // Eg, >1.0.0 <1.0.1 is still a subset of <2.0.0
+  if (gt && hasDomLT && !lt && gtltComp !== 0) {
+    return false
+  }
+
+  if (lt && hasDomGT && !gt && gtltComp !== 0) {
+    return false
+  }
+
+  // we needed a prerelease range in a specific tuple, but didn't get one
+  // then this isn't a subset.  eg >=1.2.3-pre is not a subset of >=1.0.0,
+  // because it includes prereleases in the 1.2.3 tuple
+  if (needDomGTPre || needDomLTPre) {
+    return false
+  }
+
+  return true
+}
+
+// >=1.2.3 is lower than >1.2.3
+const higherGT = (a, b, options) => {
+  if (!a) {
+    return b
+  }
+  const comp = compare(a.semver, b.semver, options)
+  return comp > 0 ? a
+    : comp < 0 ? b
+    : b.operator === '>' && a.operator === '>=' ? b
+    : a
+}
+
+// <=1.2.3 is higher than <1.2.3
+const lowerLT = (a, b, options) => {
+  if (!a) {
+    return b
+  }
+  const comp = compare(a.semver, b.semver, options)
+  return comp < 0 ? a
+    : comp > 0 ? b
+    : b.operator === '<' && a.operator === '<=' ? b
+    : a
+}
+
+module.exports = subset
diff --git a/node_modules/semver/ranges/to-comparators.js b/node_modules/semver/ranges/to-comparators.js
new file mode 100644
index 0000000..6c8bc7e
--- /dev/null
+++ b/node_modules/semver/ranges/to-comparators.js
@@ -0,0 +1,8 @@
+const Range = require('../classes/range')
+
+// Mostly just for testing and legacy API reasons
+const toComparators = (range, options) =>
+  new Range(range, options).set
+    .map(comp => comp.map(c => c.value).join(' ').trim().split(' '))
+
+module.exports = toComparators
diff --git a/node_modules/semver/ranges/valid.js b/node_modules/semver/ranges/valid.js
new file mode 100644
index 0000000..365f356
--- /dev/null
+++ b/node_modules/semver/ranges/valid.js
@@ -0,0 +1,11 @@
+const Range = require('../classes/range')
+const validRange = (range, options) => {
+  try {
+    // Return '*' instead of '' so that truthiness works.
+    // This will throw if it's invalid anyway
+    return new Range(range, options).range || '*'
+  } catch (er) {
+    return null
+  }
+}
+module.exports = validRange
diff --git a/node_modules/set-blocking/CHANGELOG.md b/node_modules/set-blocking/CHANGELOG.md
new file mode 100644
index 0000000..03bf591
--- /dev/null
+++ b/node_modules/set-blocking/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Change Log
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+<a name="2.0.0"></a>
+# [2.0.0](https://github.com/yargs/set-blocking/compare/v1.0.0...v2.0.0) (2016-05-17)
+
+
+### Features
+
+* add an isTTY check ([#3](https://github.com/yargs/set-blocking/issues/3)) ([66ce277](https://github.com/yargs/set-blocking/commit/66ce277))
+
+
+### BREAKING CHANGES
+
+* stdio/stderr will not be set to blocking if isTTY === false
+
+
+
+<a name="1.0.0"></a>
+# 1.0.0 (2016-05-14)
+
+
+### Features
+
+* implemented shim for stream._handle.setBlocking ([6bde0c0](https://github.com/yargs/set-blocking/commit/6bde0c0))
diff --git a/node_modules/set-blocking/LICENSE.txt b/node_modules/set-blocking/LICENSE.txt
new file mode 100644
index 0000000..836440b
--- /dev/null
+++ b/node_modules/set-blocking/LICENSE.txt
@@ -0,0 +1,14 @@
+Copyright (c) 2016, Contributors
+
+Permission to use, copy, modify, and/or distribute this software
+for any purpose with or without fee is hereby granted, provided
+that the above copyright notice and this permission notice
+appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE
+LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
+OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/set-blocking/README.md b/node_modules/set-blocking/README.md
new file mode 100644
index 0000000..e93b420
--- /dev/null
+++ b/node_modules/set-blocking/README.md
@@ -0,0 +1,31 @@
+# set-blocking
+
+[![Build Status](https://travis-ci.org/yargs/set-blocking.svg)](https://travis-ci.org/yargs/set-blocking)
+[![NPM version](https://img.shields.io/npm/v/set-blocking.svg)](https://www.npmjs.com/package/set-blocking)
+[![Coverage Status](https://coveralls.io/repos/yargs/set-blocking/badge.svg?branch=)](https://coveralls.io/r/yargs/set-blocking?branch=master)
+[![Standard Version](https://img.shields.io/badge/release-standard%20version-brightgreen.svg)](https://github.com/conventional-changelog/standard-version)
+
+set blocking `stdio` and `stderr` ensuring that terminal output does not truncate.
+
+```js
+const setBlocking = require('set-blocking')
+setBlocking(true)
+console.log(someLargeStringToOutput)
+```
+
+## Historical Context/Word of Warning
+
+This was created as a shim to address the bug discussed in [node #6456](https://github.com/nodejs/node/issues/6456). This bug crops up on
+newer versions of Node.js (`0.12+`), truncating terminal output.
+
+You should be mindful of the side-effects caused by using `set-blocking`:
+
+* if your module sets blocking to `true`, it will effect other modules
+  consuming your library. In [yargs](https://github.com/yargs/yargs/blob/master/yargs.js#L653) we only call
+  `setBlocking(true)` once we already know we are about to call `process.exit(code)`.
+* this patch will not apply to subprocesses spawned with `isTTY = true`, this is
+  the [default `spawn()` behavior](https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options).
+
+## License
+
+ISC
diff --git a/node_modules/set-blocking/index.js b/node_modules/set-blocking/index.js
new file mode 100644
index 0000000..6f78774
--- /dev/null
+++ b/node_modules/set-blocking/index.js
@@ -0,0 +1,7 @@
+module.exports = function (blocking) {
+  [process.stdout, process.stderr].forEach(function (stream) {
+    if (stream._handle && stream.isTTY && typeof stream._handle.setBlocking === 'function') {
+      stream._handle.setBlocking(blocking)
+    }
+  })
+}
diff --git a/node_modules/set-blocking/package.json b/node_modules/set-blocking/package.json
new file mode 100644
index 0000000..c082db7
--- /dev/null
+++ b/node_modules/set-blocking/package.json
@@ -0,0 +1,42 @@
+{
+  "name": "set-blocking",
+  "version": "2.0.0",
+  "description": "set blocking stdio and stderr ensuring that terminal output does not truncate",
+  "main": "index.js",
+  "scripts": {
+    "pretest": "standard",
+    "test": "nyc mocha ./test/*.js",
+    "coverage": "nyc report --reporter=text-lcov | coveralls",
+    "version": "standard-version"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/yargs/set-blocking.git"
+  },
+  "keywords": [
+    "flush",
+    "terminal",
+    "blocking",
+    "shim",
+    "stdio",
+    "stderr"
+  ],
+  "author": "Ben Coe <ben@npmjs.com>",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/yargs/set-blocking/issues"
+  },
+  "homepage": "https://github.com/yargs/set-blocking#readme",
+  "devDependencies": {
+    "chai": "^3.5.0",
+    "coveralls": "^2.11.9",
+    "mocha": "^2.4.5",
+    "nyc": "^6.4.4",
+    "standard": "^7.0.1",
+    "standard-version": "^2.2.1"
+  },
+  "files": [
+    "index.js",
+    "LICENSE.txt"
+  ]
+}
\ No newline at end of file
diff --git a/node_modules/signal-exit/LICENSE.txt b/node_modules/signal-exit/LICENSE.txt
new file mode 100644
index 0000000..eead04a
--- /dev/null
+++ b/node_modules/signal-exit/LICENSE.txt
@@ -0,0 +1,16 @@
+The ISC License
+
+Copyright (c) 2015, Contributors
+
+Permission to use, copy, modify, and/or distribute this software
+for any purpose with or without fee is hereby granted, provided
+that the above copyright notice and this permission notice
+appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE
+LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
+OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/signal-exit/README.md b/node_modules/signal-exit/README.md
new file mode 100644
index 0000000..f9c7c00
--- /dev/null
+++ b/node_modules/signal-exit/README.md
@@ -0,0 +1,39 @@
+# signal-exit
+
+[![Build Status](https://travis-ci.org/tapjs/signal-exit.png)](https://travis-ci.org/tapjs/signal-exit)
+[![Coverage](https://coveralls.io/repos/tapjs/signal-exit/badge.svg?branch=master)](https://coveralls.io/r/tapjs/signal-exit?branch=master)
+[![NPM version](https://img.shields.io/npm/v/signal-exit.svg)](https://www.npmjs.com/package/signal-exit)
+[![Standard Version](https://img.shields.io/badge/release-standard%20version-brightgreen.svg)](https://github.com/conventional-changelog/standard-version)
+
+When you want to fire an event no matter how a process exits:
+
+* reaching the end of execution.
+* explicitly having `process.exit(code)` called.
+* having `process.kill(pid, sig)` called.
+* receiving a fatal signal from outside the process
+
+Use `signal-exit`.
+
+```js
+var onExit = require('signal-exit')
+
+onExit(function (code, signal) {
+  console.log('process exited!')
+})
+```
+
+## API
+
+`var remove = onExit(function (code, signal) {}, options)`
+
+The return value of the function is a function that will remove the
+handler.
+
+Note that the function *only* fires for signals if the signal would
+cause the process to exit.  That is, there are no other listeners, and
+it is a fatal signal.
+
+## Options
+
+* `alwaysLast`: Run this handler after any other signal or exit
+  handlers.  This causes `process.emit` to be monkeypatched.
diff --git a/node_modules/signal-exit/index.js b/node_modules/signal-exit/index.js
new file mode 100644
index 0000000..93703f3
--- /dev/null
+++ b/node_modules/signal-exit/index.js
@@ -0,0 +1,202 @@
+// Note: since nyc uses this module to output coverage, any lines
+// that are in the direct sync flow of nyc's outputCoverage are
+// ignored, since we can never get coverage for them.
+// grab a reference to node's real process object right away
+var process = global.process
+
+const processOk = function (process) {
+  return process &&
+    typeof process === 'object' &&
+    typeof process.removeListener === 'function' &&
+    typeof process.emit === 'function' &&
+    typeof process.reallyExit === 'function' &&
+    typeof process.listeners === 'function' &&
+    typeof process.kill === 'function' &&
+    typeof process.pid === 'number' &&
+    typeof process.on === 'function'
+}
+
+// some kind of non-node environment, just no-op
+/* istanbul ignore if */
+if (!processOk(process)) {
+  module.exports = function () {
+    return function () {}
+  }
+} else {
+  var assert = require('assert')
+  var signals = require('./signals.js')
+  var isWin = /^win/i.test(process.platform)
+
+  var EE = require('events')
+  /* istanbul ignore if */
+  if (typeof EE !== 'function') {
+    EE = EE.EventEmitter
+  }
+
+  var emitter
+  if (process.__signal_exit_emitter__) {
+    emitter = process.__signal_exit_emitter__
+  } else {
+    emitter = process.__signal_exit_emitter__ = new EE()
+    emitter.count = 0
+    emitter.emitted = {}
+  }
+
+  // Because this emitter is a global, we have to check to see if a
+  // previous version of this library failed to enable infinite listeners.
+  // I know what you're about to say.  But literally everything about
+  // signal-exit is a compromise with evil.  Get used to it.
+  if (!emitter.infinite) {
+    emitter.setMaxListeners(Infinity)
+    emitter.infinite = true
+  }
+
+  module.exports = function (cb, opts) {
+    /* istanbul ignore if */
+    if (!processOk(global.process)) {
+      return function () {}
+    }
+    assert.equal(typeof cb, 'function', 'a callback must be provided for exit handler')
+
+    if (loaded === false) {
+      load()
+    }
+
+    var ev = 'exit'
+    if (opts && opts.alwaysLast) {
+      ev = 'afterexit'
+    }
+
+    var remove = function () {
+      emitter.removeListener(ev, cb)
+      if (emitter.listeners('exit').length === 0 &&
+          emitter.listeners('afterexit').length === 0) {
+        unload()
+      }
+    }
+    emitter.on(ev, cb)
+
+    return remove
+  }
+
+  var unload = function unload () {
+    if (!loaded || !processOk(global.process)) {
+      return
+    }
+    loaded = false
+
+    signals.forEach(function (sig) {
+      try {
+        process.removeListener(sig, sigListeners[sig])
+      } catch (er) {}
+    })
+    process.emit = originalProcessEmit
+    process.reallyExit = originalProcessReallyExit
+    emitter.count -= 1
+  }
+  module.exports.unload = unload
+
+  var emit = function emit (event, code, signal) {
+    /* istanbul ignore if */
+    if (emitter.emitted[event]) {
+      return
+    }
+    emitter.emitted[event] = true
+    emitter.emit(event, code, signal)
+  }
+
+  // { <signal>: <listener fn>, ... }
+  var sigListeners = {}
+  signals.forEach(function (sig) {
+    sigListeners[sig] = function listener () {
+      /* istanbul ignore if */
+      if (!processOk(global.process)) {
+        return
+      }
+      // If there are no other listeners, an exit is coming!
+      // Simplest way: remove us and then re-send the signal.
+      // We know that this will kill the process, so we can
+      // safely emit now.
+      var listeners = process.listeners(sig)
+      if (listeners.length === emitter.count) {
+        unload()
+        emit('exit', null, sig)
+        /* istanbul ignore next */
+        emit('afterexit', null, sig)
+        /* istanbul ignore next */
+        if (isWin && sig === 'SIGHUP') {
+          // "SIGHUP" throws an `ENOSYS` error on Windows,
+          // so use a supported signal instead
+          sig = 'SIGINT'
+        }
+        /* istanbul ignore next */
+        process.kill(process.pid, sig)
+      }
+    }
+  })
+
+  module.exports.signals = function () {
+    return signals
+  }
+
+  var loaded = false
+
+  var load = function load () {
+    if (loaded || !processOk(global.process)) {
+      return
+    }
+    loaded = true
+
+    // This is the number of onSignalExit's that are in play.
+    // It's important so that we can count the correct number of
+    // listeners on signals, and don't wait for the other one to
+    // handle it instead of us.
+    emitter.count += 1
+
+    signals = signals.filter(function (sig) {
+      try {
+        process.on(sig, sigListeners[sig])
+        return true
+      } catch (er) {
+        return false
+      }
+    })
+
+    process.emit = processEmit
+    process.reallyExit = processReallyExit
+  }
+  module.exports.load = load
+
+  var originalProcessReallyExit = process.reallyExit
+  var processReallyExit = function processReallyExit (code) {
+    /* istanbul ignore if */
+    if (!processOk(global.process)) {
+      return
+    }
+    process.exitCode = code || /* istanbul ignore next */ 0
+    emit('exit', process.exitCode, null)
+    /* istanbul ignore next */
+    emit('afterexit', process.exitCode, null)
+    /* istanbul ignore next */
+    originalProcessReallyExit.call(process, process.exitCode)
+  }
+
+  var originalProcessEmit = process.emit
+  var processEmit = function processEmit (ev, arg) {
+    if (ev === 'exit' && processOk(global.process)) {
+      /* istanbul ignore else */
+      if (arg !== undefined) {
+        process.exitCode = arg
+      }
+      var ret = originalProcessEmit.apply(this, arguments)
+      /* istanbul ignore next */
+      emit('exit', process.exitCode, null)
+      /* istanbul ignore next */
+      emit('afterexit', process.exitCode, null)
+      /* istanbul ignore next */
+      return ret
+    } else {
+      return originalProcessEmit.apply(this, arguments)
+    }
+  }
+}
diff --git a/node_modules/signal-exit/package.json b/node_modules/signal-exit/package.json
new file mode 100644
index 0000000..e1a0031
--- /dev/null
+++ b/node_modules/signal-exit/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "signal-exit",
+  "version": "3.0.7",
+  "description": "when you want to fire an event no matter how a process exits.",
+  "main": "index.js",
+  "scripts": {
+    "test": "tap",
+    "snap": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags"
+  },
+  "files": [
+    "index.js",
+    "signals.js"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/tapjs/signal-exit.git"
+  },
+  "keywords": [
+    "signal",
+    "exit"
+  ],
+  "author": "Ben Coe <ben@npmjs.com>",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/tapjs/signal-exit/issues"
+  },
+  "homepage": "https://github.com/tapjs/signal-exit",
+  "devDependencies": {
+    "chai": "^3.5.0",
+    "coveralls": "^3.1.1",
+    "nyc": "^15.1.0",
+    "standard-version": "^9.3.1",
+    "tap": "^15.1.1"
+  }
+}
diff --git a/node_modules/signal-exit/signals.js b/node_modules/signal-exit/signals.js
new file mode 100644
index 0000000..3bd67a8
--- /dev/null
+++ b/node_modules/signal-exit/signals.js
@@ -0,0 +1,53 @@
+// This is not the set of all possible signals.
+//
+// It IS, however, the set of all signals that trigger
+// an exit on either Linux or BSD systems.  Linux is a
+// superset of the signal names supported on BSD, and
+// the unknown signals just fail to register, so we can
+// catch that easily enough.
+//
+// Don't bother with SIGKILL.  It's uncatchable, which
+// means that we can't fire any callbacks anyway.
+//
+// If a user does happen to register a handler on a non-
+// fatal signal like SIGWINCH or something, and then
+// exit, it'll end up firing `process.emit('exit')`, so
+// the handler will be fired anyway.
+//
+// SIGBUS, SIGFPE, SIGSEGV and SIGILL, when not raised
+// artificially, inherently leave the process in a
+// state from which it is not safe to try and enter JS
+// listeners.
+module.exports = [
+  'SIGABRT',
+  'SIGALRM',
+  'SIGHUP',
+  'SIGINT',
+  'SIGTERM'
+]
+
+if (process.platform !== 'win32') {
+  module.exports.push(
+    'SIGVTALRM',
+    'SIGXCPU',
+    'SIGXFSZ',
+    'SIGUSR2',
+    'SIGTRAP',
+    'SIGSYS',
+    'SIGQUIT',
+    'SIGIOT'
+    // should detect profiler and enable/disable accordingly.
+    // see #21
+    // 'SIGPROF'
+  )
+}
+
+if (process.platform === 'linux') {
+  module.exports.push(
+    'SIGIO',
+    'SIGPOLL',
+    'SIGPWR',
+    'SIGSTKFLT',
+    'SIGUNUSED'
+  )
+}
diff --git a/node_modules/smart-buffer/.prettierrc.yaml b/node_modules/smart-buffer/.prettierrc.yaml
new file mode 100644
index 0000000..9a4f5ed
--- /dev/null
+++ b/node_modules/smart-buffer/.prettierrc.yaml
@@ -0,0 +1,5 @@
+parser: typescript
+printWidth: 120
+tabWidth: 2
+singleQuote: true
+trailingComma: none
\ No newline at end of file
diff --git a/node_modules/smart-buffer/.travis.yml b/node_modules/smart-buffer/.travis.yml
new file mode 100644
index 0000000..eec71ce
--- /dev/null
+++ b/node_modules/smart-buffer/.travis.yml
@@ -0,0 +1,13 @@
+language: node_js
+node_js:
+  - 6
+  - 8
+  - 10
+  - 12
+  - stable
+
+before_script:
+  - npm install -g typescript
+  - tsc -p ./
+
+script: "npm run coveralls"
\ No newline at end of file
diff --git a/node_modules/smart-buffer/LICENSE b/node_modules/smart-buffer/LICENSE
new file mode 100644
index 0000000..aab5771
--- /dev/null
+++ b/node_modules/smart-buffer/LICENSE
@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2013-2017 Josh Glazebrook
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/smart-buffer/README.md b/node_modules/smart-buffer/README.md
new file mode 100644
index 0000000..6e49828
--- /dev/null
+++ b/node_modules/smart-buffer/README.md
@@ -0,0 +1,633 @@
+smart-buffer  [![Build Status](https://travis-ci.org/JoshGlazebrook/smart-buffer.svg?branch=master)](https://travis-ci.org/JoshGlazebrook/smart-buffer)  [![Coverage Status](https://coveralls.io/repos/github/JoshGlazebrook/smart-buffer/badge.svg?branch=master)](https://coveralls.io/github/JoshGlazebrook/smart-buffer?branch=master)
+=============
+
+smart-buffer is a Buffer wrapper that adds automatic read & write offset tracking, string operations, data insertions, and more.
+
+![stats](https://nodei.co/npm/smart-buffer.png?downloads=true&downloadRank=true&stars=true "stats")
+
+**Key Features**:
+* Proxies all of the Buffer write and read functions
+* Keeps track of read and write offsets automatically
+* Grows the internal Buffer as needed
+* Useful string operations. (Null terminating strings)
+* Allows for inserting values at specific points in the Buffer
+* Built in TypeScript
+* Type Definitions Provided
+* Browser Support (using Webpack/Browserify)
+* Full test coverage
+
+**Requirements**:
+* Node v4.0+ is supported at this time.  (Versions prior to 2.0 will work on node 0.10)
+
+
+
+## Breaking Changes in v4.0
+
+* Old constructor patterns have been completely removed. It's now required to use the SmartBuffer.fromXXX() factory constructors.
+* rewind(), skip(), moveTo() have been removed. (see [offsets](#offsets))
+* Internal private properties are now prefixed with underscores (_)
+* **All** writeXXX() methods that are given an offset will now **overwrite data** instead of insert. (see [write vs insert](#write-vs-insert))
+* insertXXX() methods have been added for when you want to insert data at a specific offset (this replaces the old behavior of writeXXX() when an offset was provided)
+
+
+## Looking for v3 docs?
+
+Legacy documentation for version 3 and prior can be found [here](https://github.com/JoshGlazebrook/smart-buffer/blob/master/docs/README_v3.md).
+
+## Installing:
+
+`yarn add smart-buffer`
+
+or
+
+`npm install smart-buffer`
+
+Note: The published NPM package includes the built javascript library.
+If you cloned this repo and wish to build the library manually use:
+
+`npm run build`
+
+## Using smart-buffer
+
+```javascript
+// Javascript
+const SmartBuffer = require('smart-buffer').SmartBuffer;
+
+// Typescript
+import { SmartBuffer, SmartBufferOptions} from 'smart-buffer';
+```
+
+### Simple Example
+
+Building a packet that uses the following protocol specification:
+
+`[PacketType:2][PacketLength:2][Data:XX]`
+
+To build this packet using the vanilla Buffer class, you would have to count up the length of the data payload beforehand. You would also need to keep track of the current "cursor" position in your Buffer so you write everything in the right places. With smart-buffer you don't have to do either of those things.
+
+```javascript
+function createLoginPacket(username, password, age, country) {
+    const packet = new SmartBuffer();
+    packet.writeUInt16LE(0x0060); // Some packet type
+    packet.writeStringNT(username);
+    packet.writeStringNT(password);
+    packet.writeUInt8(age);
+    packet.writeStringNT(country);
+    packet.insertUInt16LE(packet.length - 2, 2);
+
+    return packet.toBuffer();
+}
+```
+With the above function, you now can do this:
+```javascript
+const login = createLoginPacket("Josh", "secret123", 22, "United States");
+
+// <Buffer 60 00 1e 00 4a 6f 73 68 00 73 65 63 72 65 74 31 32 33 00 16 55 6e 69 74 65 64 20 53 74 61 74 65 73 00>
+```
+Notice that the `[PacketLength:2]` value (1e 00) was inserted at position 2.
+
+Reading back the packet we created above is just as easy:
+```javascript
+
+const reader = SmartBuffer.fromBuffer(login);
+
+const logininfo = {
+    packetType: reader.readUInt16LE(),
+    packetLength: reader.readUInt16LE(),
+    username: reader.readStringNT(),
+    password: reader.readStringNT(),
+    age: reader.readUInt8(),
+    country: reader.readStringNT()
+};
+
+/*
+{
+    packetType: 96, (0x0060)
+    packetLength: 30,
+    username: 'Josh',
+    password: 'secret123',
+    age: 22,
+    country: 'United States'
+}
+*/
+```
+
+
+## Write vs Insert
+In prior versions of SmartBuffer, .writeXXX(value, offset) calls would insert data when an offset was provided. In version 4, this will now overwrite the data at the offset position. To insert data there are now corresponding .insertXXX(value, offset) methods.
+
+**SmartBuffer v3**:
+```javascript
+const buff = SmartBuffer.fromBuffer(new Buffer([1,2,3,4,5,6]));
+buff.writeInt8(7, 2);
+console.log(buff.toBuffer())
+
+// <Buffer 01 02 07 03 04 05 06>
+```
+
+**SmartBuffer v4**:
+```javascript
+const buff = SmartBuffer.fromBuffer(new Buffer([1,2,3,4,5,6]));
+buff.writeInt8(7, 2);
+console.log(buff.toBuffer());
+
+// <Buffer 01 02 07 04 05 06>
+```
+
+To insert you instead should use:
+```javascript
+const buff = SmartBuffer.fromBuffer(new Buffer([1,2,3,4,5,6]));
+buff.insertInt8(7, 2);
+console.log(buff.toBuffer());
+
+// <Buffer 01 02 07 03 04 05 06>
+```
+
+**Note:** Insert/Writing to a position beyond the currently tracked internal Buffer will zero pad to your offset.
+
+## Constructing a smart-buffer
+
+There are a few different ways to construct a SmartBuffer instance.
+
+```javascript
+// Creating SmartBuffer from existing Buffer
+const buff = SmartBuffer.fromBuffer(buffer); // Creates instance from buffer. (Uses default utf8 encoding)
+const buff = SmartBuffer.fromBuffer(buffer, 'ascii'); // Creates instance from buffer with ascii encoding for strings.
+
+// Creating SmartBuffer with specified internal Buffer size. (Note: this is not a hard cap, the internal buffer will grow as needed).
+const buff = SmartBuffer.fromSize(1024); // Creates instance with internal Buffer size of 1024.
+const buff = SmartBuffer.fromSize(1024, 'utf8'); // Creates instance with internal Buffer size of 1024, and utf8 encoding for strings.
+
+// Creating SmartBuffer with options object. This one specifies size and encoding.
+const buff = SmartBuffer.fromOptions({
+    size: 1024,
+    encoding: 'ascii'
+});
+
+// Creating SmartBuffer with options object. This one specified an existing Buffer.
+const buff = SmartBuffer.fromOptions({
+    buff: buffer
+});
+
+// Creating SmartBuffer from a string.
+const buff = SmartBuffer.fromBuffer(Buffer.from('some string', 'utf8'));
+
+// Just want a regular SmartBuffer with all default options?
+const buff = new SmartBuffer();
+```
+
+# Api Reference:
+
+**Note:** SmartBuffer is fully documented with Typescript definitions as well as jsdocs so your favorite editor/IDE will have intellisense.
+
+**Table of Contents**
+
+1. [Constructing](#constructing)
+2. **Numbers**
+    1. [Integers](#integers)
+    2. [Floating Points](#floating-point-numbers)
+3. **Strings**
+    1. [Strings](#strings)
+    2. [Null Terminated Strings](#null-terminated-strings)
+4. [Buffers](#buffers)
+5. [Offsets](#offsets)
+6. [Other](#other)
+
+
+## Constructing
+
+### constructor()
+### constructor([options])
+- ```options``` *{SmartBufferOptions}* An optional options object to construct a SmartBuffer with.
+
+Examples:
+```javascript
+const buff = new SmartBuffer();
+const buff = new SmartBuffer({
+    size: 1024,
+    encoding: 'ascii'
+});
+```
+
+### Class Method: fromBuffer(buffer[, encoding])
+- ```buffer``` *{Buffer}* The Buffer instance to wrap.
+- ```encoding``` *{string}* The string encoding to use. ```Default: 'utf8'```
+
+Examples:
+```javascript
+const someBuffer = Buffer.from('some string');
+const buff = SmartBuffer.fromBuffer(someBuffer); // Defaults to utf8
+const buff = SmartBuffer.fromBuffer(someBuffer, 'ascii');
+```
+
+### Class Method: fromSize(size[, encoding])
+- ```size``` *{number}* The size to initialize the internal Buffer.
+- ```encoding``` *{string}* The string encoding to use. ```Default: 'utf8'```
+
+Examples:
+```javascript
+const buff = SmartBuffer.fromSize(1024); // Defaults to utf8
+const buff = SmartBuffer.fromSize(1024, 'ascii');
+```
+
+### Class Method: fromOptions(options)
+- ```options``` *{SmartBufferOptions}* The Buffer instance to wrap.
+
+```typescript
+interface SmartBufferOptions {
+    encoding?: BufferEncoding; // Defaults to utf8
+    size?: number; // Defaults to 4096
+    buff?: Buffer;
+}
+```
+
+Examples:
+```javascript
+const buff = SmartBuffer.fromOptions({
+    size: 1024
+};
+const buff = SmartBuffer.fromOptions({
+    size: 1024,
+    encoding: 'utf8'
+});
+const buff = SmartBuffer.fromOptions({
+    encoding: 'utf8'
+});
+
+const someBuff = Buffer.from('some string', 'utf8');
+const buff = SmartBuffer.fromOptions({
+    buffer: someBuff,
+    encoding: 'utf8'
+});
+```
+
+## Integers
+
+### buff.readInt8([offset])
+### buff.readUInt8([offset])
+- ```offset``` *{number}* Optional position to start reading data from. **Default**: ```Auto managed offset```
+- Returns *{number}*
+
+Read a Int8 value.
+
+### buff.readInt16BE([offset])
+### buff.readInt16LE([offset])
+### buff.readUInt16BE([offset])
+### buff.readUInt16LE([offset])
+- ```offset``` *{number}* Optional position to start reading data from. **Default**: ```Auto managed offset```
+- Returns *{number}*
+
+Read a 16 bit integer value.
+
+### buff.readInt32BE([offset])
+### buff.readInt32LE([offset])
+### buff.readUInt32BE([offset])
+### buff.readUInt32LE([offset])
+- ```offset``` *{number}* Optional position to start reading data from. **Default**: ```Auto managed offset```
+- Returns *{number}*
+
+Read a 32 bit integer value.
+
+
+### buff.writeInt8(value[, offset])
+### buff.writeUInt8(value[, offset])
+- ```value``` *{number}* The value to write.
+- ```offset``` *{number}* An optional offset to write this value to. **Default:** ```Auto managed offset```
+- Returns *{this}*
+
+Write a Int8 value.
+
+### buff.insertInt8(value, offset)
+### buff.insertUInt8(value, offset)
+- ```value``` *{number}* The value to insert.
+- ```offset``` *{number}* The offset to insert this data at.
+- Returns *{this}*
+
+Insert a Int8 value.
+
+
+### buff.writeInt16BE(value[, offset])
+### buff.writeInt16LE(value[, offset])
+### buff.writeUInt16BE(value[, offset])
+### buff.writeUInt16LE(value[, offset])
+- ```value``` *{number}* The value to write.
+- ```offset``` *{number}* An optional offset to write this value to. **Default:** ```Auto managed offset```
+- Returns *{this}*
+
+Write a 16 bit integer value.
+
+### buff.insertInt16BE(value, offset)
+### buff.insertInt16LE(value, offset)
+### buff.insertUInt16BE(value, offset)
+### buff.insertUInt16LE(value, offset)
+- ```value``` *{number}* The value to insert.
+- ```offset``` *{number}* The offset to insert this data at.
+- Returns *{this}*
+
+Insert a 16 bit integer value.
+
+
+### buff.writeInt32BE(value[, offset])
+### buff.writeInt32LE(value[, offset])
+### buff.writeUInt32BE(value[, offset])
+### buff.writeUInt32LE(value[, offset])
+- ```value``` *{number}* The value to write.
+- ```offset``` *{number}* An optional offset to write this value to. **Default:** ```Auto managed offset```
+- Returns *{this}*
+
+Write a 32 bit integer value.
+
+### buff.insertInt32BE(value, offset)
+### buff.insertInt32LE(value, offset)
+### buff.insertUInt32BE(value, offset)
+### buff.nsertUInt32LE(value, offset)
+- ```value``` *{number}* The value to insert.
+- ```offset``` *{number}* The offset to insert this data at.
+- Returns *{this}*
+
+Insert a 32 bit integer value.
+
+
+## Floating Point Numbers
+
+### buff.readFloatBE([offset])
+### buff.readFloatLE([offset])
+- ```offset``` *{number}* Optional position to start reading data from. **Default**: ```Auto managed offset```
+- Returns *{number}*
+
+Read a Float value.
+
+### buff.readDoubleBE([offset])
+### buff.readDoubleLE([offset])
+- ```offset``` *{number}* Optional position to start reading data from. **Default**: ```Auto managed offset```
+- Returns *{number}*
+
+Read a Double value.
+
+
+### buff.writeFloatBE(value[, offset])
+### buff.writeFloatLE(value[, offset])
+- ```value``` *{number}* The value to write.
+- ```offset``` *{number}* An optional offset to write this value to. **Default:** ```Auto managed offset```
+- Returns *{this}*
+
+Write a Float value.
+
+### buff.insertFloatBE(value, offset)
+### buff.insertFloatLE(value, offset)
+- ```value``` *{number}* The value to insert.
+- ```offset``` *{number}* The offset to insert this data at.
+- Returns *{this}*
+
+Insert a Float value.
+
+
+### buff.writeDoubleBE(value[, offset])
+### buff.writeDoubleLE(value[, offset])
+- ```value``` *{number}* The value to write.
+- ```offset``` *{number}* An optional offset to write this value to. **Default:** ```Auto managed offset```
+- Returns *{this}*
+
+Write a Double value.
+
+### buff.insertDoubleBE(value, offset)
+### buff.insertDoubleLE(value, offset)
+- ```value``` *{number}* The value to insert.
+- ```offset``` *{number}* The offset to insert this data at.
+- Returns *{this}*
+
+Insert a Double value.
+
+## Strings
+
+### buff.readString()
+### buff.readString(size[, encoding])
+### buff.readString(encoding)
+- ```size``` *{number}* The number of bytes to read. **Default:** ```Reads to the end of the Buffer.```
+- ```encoding``` *{string}* The string encoding to use. **Default:** ```utf8```.
+
+Read a string value.
+
+Examples:
+```javascript
+const buff = SmartBuffer.fromBuffer(Buffer.from('hello there', 'utf8'));
+buff.readString(); // 'hello there'
+buff.readString(2); // 'he'
+buff.readString(2, 'utf8'); // 'he'
+buff.readString('utf8'); // 'hello there'
+```
+
+### buff.writeString(value)
+### buff.writeString(value[, offset])
+### buff.writeString(value[, encoding])
+### buff.writeString(value[, offset[, encoding]])
+- ```value``` *{string}* The string value to write.
+- ```offset``` *{number}* The offset to write this value to. **Default:** ```Auto managed offset```
+- ```encoding``` *{string}* An optional string encoding to use. **Default:** ```utf8```
+
+Write a string value.
+
+Examples:
+```javascript
+buff.writeString('hello'); // Auto managed offset
+buff.writeString('hello', 2);
+buff.writeString('hello', 'utf8') // Auto managed offset
+buff.writeString('hello', 2, 'utf8');
+```
+
+### buff.insertString(value, offset[, encoding])
+- ```value``` *{string}* The string value to write.
+- ```offset``` *{number}* The offset to write this value to.
+- ```encoding``` *{string}* An optional string encoding to use. **Default:** ```utf8```
+
+Insert a string value.
+
+Examples:
+```javascript
+buff.insertString('hello', 2);
+buff.insertString('hello', 2, 'utf8');
+```
+
+## Null Terminated Strings
+
+### buff.readStringNT()
+### buff.readStringNT(encoding)
+- ```encoding``` *{string}* The string encoding to use. **Default:** ```utf8```.
+
+Read a null terminated string value. (If a null is not found, it will read to the end of the Buffer).
+
+Examples:
+```javascript
+const buff = SmartBuffer.fromBuffer(Buffer.from('hello\0 there', 'utf8'));
+buff.readStringNT(); // 'hello'
+
+// If we called this again:
+buff.readStringNT(); // ' there'
+```
+
+### buff.writeStringNT(value)
+### buff.writeStringNT(value[, offset])
+### buff.writeStringNT(value[, encoding])
+### buff.writeStringNT(value[, offset[, encoding]])
+- ```value``` *{string}* The string value to write.
+- ```offset``` *{number}* The offset to write this value to. **Default:** ```Auto managed offset```
+- ```encoding``` *{string}* An optional string encoding to use. **Default:** ```utf8```
+
+Write a null terminated string value.
+
+Examples:
+```javascript
+buff.writeStringNT('hello'); // Auto managed offset   <Buffer 68 65 6c 6c 6f 00>
+buff.writeStringNT('hello', 2); // <Buffer 00 00 68 65 6c 6c 6f 00>
+buff.writeStringNT('hello', 'utf8') // Auto managed offset
+buff.writeStringNT('hello', 2, 'utf8');
+```
+
+### buff.insertStringNT(value, offset[, encoding])
+- ```value``` *{string}* The string value to write.
+- ```offset``` *{number}* The offset to write this value to.
+- ```encoding``` *{string}* An optional string encoding to use. **Default:** ```utf8```
+
+Insert a null terminated string value.
+
+Examples:
+```javascript
+buff.insertStringNT('hello', 2);
+buff.insertStringNT('hello', 2, 'utf8');
+```
+
+## Buffers
+
+### buff.readBuffer([length])
+- ```length``` *{number}* The number of bytes to read into a Buffer. **Default:** ```Reads to the end of the Buffer```
+
+Read a Buffer of a specified size.
+
+### buff.writeBuffer(value[, offset])
+- ```value``` *{Buffer}* The buffer value to write.
+- ```offset``` *{number}* An optional offset to write the value to. **Default:** ```Auto managed offset```
+
+### buff.insertBuffer(value, offset)
+- ```value``` *{Buffer}* The buffer value to write.
+- ```offset``` *{number}* The offset to write the value to.
+
+
+### buff.readBufferNT()
+
+Read a null terminated Buffer.
+
+### buff.writeBufferNT(value[, offset])
+- ```value``` *{Buffer}* The buffer value to write.
+- ```offset``` *{number}* An optional offset to write the value to. **Default:** ```Auto managed offset```
+
+Write a null terminated Buffer.
+
+
+### buff.insertBufferNT(value, offset)
+- ```value``` *{Buffer}* The buffer value to write.
+- ```offset``` *{number}* The offset to write the value to.
+
+Insert a null terminated Buffer.
+
+
+## Offsets
+
+### buff.readOffset
+### buff.readOffset(offset)
+- ```offset``` *{number}* The new read offset value to set.
+- Returns: ```The current read offset```
+
+Gets or sets the current read offset.
+
+Examples:
+```javascript
+const currentOffset = buff.readOffset; // 5
+
+buff.readOffset = 10;
+
+console.log(buff.readOffset) // 10
+```
+
+### buff.writeOffset
+### buff.writeOffset(offset)
+- ```offset``` *{number}* The new write offset value to set.
+- Returns: ```The current write offset```
+
+Gets or sets the current write offset.
+
+Examples:
+```javascript
+const currentOffset = buff.writeOffset; // 5
+
+buff.writeOffset = 10;
+
+console.log(buff.writeOffset) // 10
+```
+
+### buff.encoding
+### buff.encoding(encoding)
+- ```encoding``` *{string}* The new string encoding to set.
+- Returns: ```The current string encoding```
+
+Gets or sets the current string encoding.
+
+Examples:
+```javascript
+const currentEncoding = buff.encoding; // 'utf8'
+
+buff.encoding = 'ascii';
+
+console.log(buff.encoding) // 'ascii'
+```
+
+## Other
+
+### buff.clear()
+
+Clear and resets the SmartBuffer instance.
+
+### buff.remaining()
+- Returns ```Remaining data left to be read```
+
+Gets the number of remaining bytes to be read.
+
+
+### buff.internalBuffer
+- Returns: *{Buffer}*
+
+Gets the internally managed Buffer (Includes unmanaged data).
+
+Examples:
+```javascript
+const buff = SmartBuffer.fromSize(16);
+buff.writeString('hello');
+console.log(buff.InternalBuffer); // <Buffer 68 65 6c 6c 6f 00 00 00 00 00 00 00 00 00 00 00>
+```
+
+### buff.toBuffer()
+- Returns: *{Buffer}*
+
+Gets a sliced Buffer instance of the internally managed Buffer. (Only includes managed data)
+
+Examples:
+```javascript
+const buff = SmartBuffer.fromSize(16);
+buff.writeString('hello');
+console.log(buff.toBuffer()); // <Buffer 68 65 6c 6c 6f>
+```
+
+### buff.toString([encoding])
+- ```encoding``` *{string}* The string encoding to use when converting to a string. **Default:** ```utf8```
+- Returns *{string}*
+
+Gets a string representation of all data in the SmartBuffer.
+
+### buff.destroy()
+
+Destroys the SmartBuffer instance.
+
+
+
+## License
+
+This work is licensed under the [MIT license](http://en.wikipedia.org/wiki/MIT_License).
diff --git a/node_modules/smart-buffer/build/smartbuffer.js b/node_modules/smart-buffer/build/smartbuffer.js
new file mode 100644
index 0000000..5353ae1
--- /dev/null
+++ b/node_modules/smart-buffer/build/smartbuffer.js
@@ -0,0 +1,1233 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const utils_1 = require("./utils");
+// The default Buffer size if one is not provided.
+const DEFAULT_SMARTBUFFER_SIZE = 4096;
+// The default string encoding to use for reading/writing strings.
+const DEFAULT_SMARTBUFFER_ENCODING = 'utf8';
+class SmartBuffer {
+    /**
+     * Creates a new SmartBuffer instance.
+     *
+     * @param options { SmartBufferOptions } The SmartBufferOptions to apply to this instance.
+     */
+    constructor(options) {
+        this.length = 0;
+        this._encoding = DEFAULT_SMARTBUFFER_ENCODING;
+        this._writeOffset = 0;
+        this._readOffset = 0;
+        if (SmartBuffer.isSmartBufferOptions(options)) {
+            // Checks for encoding
+            if (options.encoding) {
+                utils_1.checkEncoding(options.encoding);
+                this._encoding = options.encoding;
+            }
+            // Checks for initial size length
+            if (options.size) {
+                if (utils_1.isFiniteInteger(options.size) && options.size > 0) {
+                    this._buff = Buffer.allocUnsafe(options.size);
+                }
+                else {
+                    throw new Error(utils_1.ERRORS.INVALID_SMARTBUFFER_SIZE);
+                }
+                // Check for initial Buffer
+            }
+            else if (options.buff) {
+                if (Buffer.isBuffer(options.buff)) {
+                    this._buff = options.buff;
+                    this.length = options.buff.length;
+                }
+                else {
+                    throw new Error(utils_1.ERRORS.INVALID_SMARTBUFFER_BUFFER);
+                }
+            }
+            else {
+                this._buff = Buffer.allocUnsafe(DEFAULT_SMARTBUFFER_SIZE);
+            }
+        }
+        else {
+            // If something was passed but it's not a SmartBufferOptions object
+            if (typeof options !== 'undefined') {
+                throw new Error(utils_1.ERRORS.INVALID_SMARTBUFFER_OBJECT);
+            }
+            // Otherwise default to sane options
+            this._buff = Buffer.allocUnsafe(DEFAULT_SMARTBUFFER_SIZE);
+        }
+    }
+    /**
+     * Creates a new SmartBuffer instance with the provided internal Buffer size and optional encoding.
+     *
+     * @param size { Number } The size of the internal Buffer.
+     * @param encoding { String } The BufferEncoding to use for strings.
+     *
+     * @return { SmartBuffer }
+     */
+    static fromSize(size, encoding) {
+        return new this({
+            size: size,
+            encoding: encoding
+        });
+    }
+    /**
+     * Creates a new SmartBuffer instance with the provided Buffer and optional encoding.
+     *
+     * @param buffer { Buffer } The Buffer to use as the internal Buffer value.
+     * @param encoding { String } The BufferEncoding to use for strings.
+     *
+     * @return { SmartBuffer }
+     */
+    static fromBuffer(buff, encoding) {
+        return new this({
+            buff: buff,
+            encoding: encoding
+        });
+    }
+    /**
+     * Creates a new SmartBuffer instance with the provided SmartBufferOptions options.
+     *
+     * @param options { SmartBufferOptions } The options to use when creating the SmartBuffer instance.
+     */
+    static fromOptions(options) {
+        return new this(options);
+    }
+    /**
+     * Type checking function that determines if an object is a SmartBufferOptions object.
+     */
+    static isSmartBufferOptions(options) {
+        const castOptions = options;
+        return (castOptions &&
+            (castOptions.encoding !== undefined || castOptions.size !== undefined || castOptions.buff !== undefined));
+    }
+    // Signed integers
+    /**
+     * Reads an Int8 value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readInt8(offset) {
+        return this._readNumberValue(Buffer.prototype.readInt8, 1, offset);
+    }
+    /**
+     * Reads an Int16BE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readInt16BE(offset) {
+        return this._readNumberValue(Buffer.prototype.readInt16BE, 2, offset);
+    }
+    /**
+     * Reads an Int16LE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readInt16LE(offset) {
+        return this._readNumberValue(Buffer.prototype.readInt16LE, 2, offset);
+    }
+    /**
+     * Reads an Int32BE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readInt32BE(offset) {
+        return this._readNumberValue(Buffer.prototype.readInt32BE, 4, offset);
+    }
+    /**
+     * Reads an Int32LE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readInt32LE(offset) {
+        return this._readNumberValue(Buffer.prototype.readInt32LE, 4, offset);
+    }
+    /**
+     * Reads a BigInt64BE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { BigInt }
+     */
+    readBigInt64BE(offset) {
+        utils_1.bigIntAndBufferInt64Check('readBigInt64BE');
+        return this._readNumberValue(Buffer.prototype.readBigInt64BE, 8, offset);
+    }
+    /**
+     * Reads a BigInt64LE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { BigInt }
+     */
+    readBigInt64LE(offset) {
+        utils_1.bigIntAndBufferInt64Check('readBigInt64LE');
+        return this._readNumberValue(Buffer.prototype.readBigInt64LE, 8, offset);
+    }
+    /**
+     * Writes an Int8 value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeInt8(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeInt8, 1, value, offset);
+        return this;
+    }
+    /**
+     * Inserts an Int8 value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertInt8(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeInt8, 1, value, offset);
+    }
+    /**
+     * Writes an Int16BE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeInt16BE(value, offset) {
+        return this._writeNumberValue(Buffer.prototype.writeInt16BE, 2, value, offset);
+    }
+    /**
+     * Inserts an Int16BE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertInt16BE(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeInt16BE, 2, value, offset);
+    }
+    /**
+     * Writes an Int16LE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeInt16LE(value, offset) {
+        return this._writeNumberValue(Buffer.prototype.writeInt16LE, 2, value, offset);
+    }
+    /**
+     * Inserts an Int16LE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertInt16LE(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeInt16LE, 2, value, offset);
+    }
+    /**
+     * Writes an Int32BE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeInt32BE(value, offset) {
+        return this._writeNumberValue(Buffer.prototype.writeInt32BE, 4, value, offset);
+    }
+    /**
+     * Inserts an Int32BE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertInt32BE(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeInt32BE, 4, value, offset);
+    }
+    /**
+     * Writes an Int32LE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeInt32LE(value, offset) {
+        return this._writeNumberValue(Buffer.prototype.writeInt32LE, 4, value, offset);
+    }
+    /**
+     * Inserts an Int32LE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertInt32LE(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeInt32LE, 4, value, offset);
+    }
+    /**
+     * Writes a BigInt64BE value to the current write position (or at optional offset).
+     *
+     * @param value { BigInt } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeBigInt64BE(value, offset) {
+        utils_1.bigIntAndBufferInt64Check('writeBigInt64BE');
+        return this._writeNumberValue(Buffer.prototype.writeBigInt64BE, 8, value, offset);
+    }
+    /**
+     * Inserts a BigInt64BE value at the given offset value.
+     *
+     * @param value { BigInt } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertBigInt64BE(value, offset) {
+        utils_1.bigIntAndBufferInt64Check('writeBigInt64BE');
+        return this._insertNumberValue(Buffer.prototype.writeBigInt64BE, 8, value, offset);
+    }
+    /**
+     * Writes a BigInt64LE value to the current write position (or at optional offset).
+     *
+     * @param value { BigInt } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeBigInt64LE(value, offset) {
+        utils_1.bigIntAndBufferInt64Check('writeBigInt64LE');
+        return this._writeNumberValue(Buffer.prototype.writeBigInt64LE, 8, value, offset);
+    }
+    /**
+     * Inserts a Int64LE value at the given offset value.
+     *
+     * @param value { BigInt } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertBigInt64LE(value, offset) {
+        utils_1.bigIntAndBufferInt64Check('writeBigInt64LE');
+        return this._insertNumberValue(Buffer.prototype.writeBigInt64LE, 8, value, offset);
+    }
+    // Unsigned Integers
+    /**
+     * Reads an UInt8 value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readUInt8(offset) {
+        return this._readNumberValue(Buffer.prototype.readUInt8, 1, offset);
+    }
+    /**
+     * Reads an UInt16BE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readUInt16BE(offset) {
+        return this._readNumberValue(Buffer.prototype.readUInt16BE, 2, offset);
+    }
+    /**
+     * Reads an UInt16LE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readUInt16LE(offset) {
+        return this._readNumberValue(Buffer.prototype.readUInt16LE, 2, offset);
+    }
+    /**
+     * Reads an UInt32BE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readUInt32BE(offset) {
+        return this._readNumberValue(Buffer.prototype.readUInt32BE, 4, offset);
+    }
+    /**
+     * Reads an UInt32LE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readUInt32LE(offset) {
+        return this._readNumberValue(Buffer.prototype.readUInt32LE, 4, offset);
+    }
+    /**
+     * Reads a BigUInt64BE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { BigInt }
+     */
+    readBigUInt64BE(offset) {
+        utils_1.bigIntAndBufferInt64Check('readBigUInt64BE');
+        return this._readNumberValue(Buffer.prototype.readBigUInt64BE, 8, offset);
+    }
+    /**
+     * Reads a BigUInt64LE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { BigInt }
+     */
+    readBigUInt64LE(offset) {
+        utils_1.bigIntAndBufferInt64Check('readBigUInt64LE');
+        return this._readNumberValue(Buffer.prototype.readBigUInt64LE, 8, offset);
+    }
+    /**
+     * Writes an UInt8 value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeUInt8(value, offset) {
+        return this._writeNumberValue(Buffer.prototype.writeUInt8, 1, value, offset);
+    }
+    /**
+     * Inserts an UInt8 value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertUInt8(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeUInt8, 1, value, offset);
+    }
+    /**
+     * Writes an UInt16BE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeUInt16BE(value, offset) {
+        return this._writeNumberValue(Buffer.prototype.writeUInt16BE, 2, value, offset);
+    }
+    /**
+     * Inserts an UInt16BE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertUInt16BE(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeUInt16BE, 2, value, offset);
+    }
+    /**
+     * Writes an UInt16LE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeUInt16LE(value, offset) {
+        return this._writeNumberValue(Buffer.prototype.writeUInt16LE, 2, value, offset);
+    }
+    /**
+     * Inserts an UInt16LE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertUInt16LE(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeUInt16LE, 2, value, offset);
+    }
+    /**
+     * Writes an UInt32BE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeUInt32BE(value, offset) {
+        return this._writeNumberValue(Buffer.prototype.writeUInt32BE, 4, value, offset);
+    }
+    /**
+     * Inserts an UInt32BE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertUInt32BE(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeUInt32BE, 4, value, offset);
+    }
+    /**
+     * Writes an UInt32LE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeUInt32LE(value, offset) {
+        return this._writeNumberValue(Buffer.prototype.writeUInt32LE, 4, value, offset);
+    }
+    /**
+     * Inserts an UInt32LE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertUInt32LE(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeUInt32LE, 4, value, offset);
+    }
+    /**
+     * Writes a BigUInt64BE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeBigUInt64BE(value, offset) {
+        utils_1.bigIntAndBufferInt64Check('writeBigUInt64BE');
+        return this._writeNumberValue(Buffer.prototype.writeBigUInt64BE, 8, value, offset);
+    }
+    /**
+     * Inserts a BigUInt64BE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertBigUInt64BE(value, offset) {
+        utils_1.bigIntAndBufferInt64Check('writeBigUInt64BE');
+        return this._insertNumberValue(Buffer.prototype.writeBigUInt64BE, 8, value, offset);
+    }
+    /**
+     * Writes a BigUInt64LE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeBigUInt64LE(value, offset) {
+        utils_1.bigIntAndBufferInt64Check('writeBigUInt64LE');
+        return this._writeNumberValue(Buffer.prototype.writeBigUInt64LE, 8, value, offset);
+    }
+    /**
+     * Inserts a BigUInt64LE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertBigUInt64LE(value, offset) {
+        utils_1.bigIntAndBufferInt64Check('writeBigUInt64LE');
+        return this._insertNumberValue(Buffer.prototype.writeBigUInt64LE, 8, value, offset);
+    }
+    // Floating Point
+    /**
+     * Reads an FloatBE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readFloatBE(offset) {
+        return this._readNumberValue(Buffer.prototype.readFloatBE, 4, offset);
+    }
+    /**
+     * Reads an FloatLE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readFloatLE(offset) {
+        return this._readNumberValue(Buffer.prototype.readFloatLE, 4, offset);
+    }
+    /**
+     * Writes a FloatBE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeFloatBE(value, offset) {
+        return this._writeNumberValue(Buffer.prototype.writeFloatBE, 4, value, offset);
+    }
+    /**
+     * Inserts a FloatBE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertFloatBE(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeFloatBE, 4, value, offset);
+    }
+    /**
+     * Writes a FloatLE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeFloatLE(value, offset) {
+        return this._writeNumberValue(Buffer.prototype.writeFloatLE, 4, value, offset);
+    }
+    /**
+     * Inserts a FloatLE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertFloatLE(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeFloatLE, 4, value, offset);
+    }
+    // Double Floating Point
+    /**
+     * Reads an DoublEBE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readDoubleBE(offset) {
+        return this._readNumberValue(Buffer.prototype.readDoubleBE, 8, offset);
+    }
+    /**
+     * Reads an DoubleLE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readDoubleLE(offset) {
+        return this._readNumberValue(Buffer.prototype.readDoubleLE, 8, offset);
+    }
+    /**
+     * Writes a DoubleBE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeDoubleBE(value, offset) {
+        return this._writeNumberValue(Buffer.prototype.writeDoubleBE, 8, value, offset);
+    }
+    /**
+     * Inserts a DoubleBE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertDoubleBE(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeDoubleBE, 8, value, offset);
+    }
+    /**
+     * Writes a DoubleLE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeDoubleLE(value, offset) {
+        return this._writeNumberValue(Buffer.prototype.writeDoubleLE, 8, value, offset);
+    }
+    /**
+     * Inserts a DoubleLE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertDoubleLE(value, offset) {
+        return this._insertNumberValue(Buffer.prototype.writeDoubleLE, 8, value, offset);
+    }
+    // Strings
+    /**
+     * Reads a String from the current read position.
+     *
+     * @param arg1 { Number | String } The number of bytes to read as a String, or the BufferEncoding to use for
+     *             the string (Defaults to instance level encoding).
+     * @param encoding { String } The BufferEncoding to use for the string (Defaults to instance level encoding).
+     *
+     * @return { String }
+     */
+    readString(arg1, encoding) {
+        let lengthVal;
+        // Length provided
+        if (typeof arg1 === 'number') {
+            utils_1.checkLengthValue(arg1);
+            lengthVal = Math.min(arg1, this.length - this._readOffset);
+        }
+        else {
+            encoding = arg1;
+            lengthVal = this.length - this._readOffset;
+        }
+        // Check encoding
+        if (typeof encoding !== 'undefined') {
+            utils_1.checkEncoding(encoding);
+        }
+        const value = this._buff.slice(this._readOffset, this._readOffset + lengthVal).toString(encoding || this._encoding);
+        this._readOffset += lengthVal;
+        return value;
+    }
+    /**
+     * Inserts a String
+     *
+     * @param value { String } The String value to insert.
+     * @param offset { Number } The offset to insert the string at.
+     * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+     *
+     * @return this
+     */
+    insertString(value, offset, encoding) {
+        utils_1.checkOffsetValue(offset);
+        return this._handleString(value, true, offset, encoding);
+    }
+    /**
+     * Writes a String
+     *
+     * @param value { String } The String value to write.
+     * @param arg2 { Number | String } The offset to write the string at, or the BufferEncoding to use.
+     * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+     *
+     * @return this
+     */
+    writeString(value, arg2, encoding) {
+        return this._handleString(value, false, arg2, encoding);
+    }
+    /**
+     * Reads a null-terminated String from the current read position.
+     *
+     * @param encoding { String } The BufferEncoding to use for the string (Defaults to instance level encoding).
+     *
+     * @return { String }
+     */
+    readStringNT(encoding) {
+        if (typeof encoding !== 'undefined') {
+            utils_1.checkEncoding(encoding);
+        }
+        // Set null character position to the end SmartBuffer instance.
+        let nullPos = this.length;
+        // Find next null character (if one is not found, default from above is used)
+        for (let i = this._readOffset; i < this.length; i++) {
+            if (this._buff[i] === 0x00) {
+                nullPos = i;
+                break;
+            }
+        }
+        // Read string value
+        const value = this._buff.slice(this._readOffset, nullPos);
+        // Increment internal Buffer read offset
+        this._readOffset = nullPos + 1;
+        return value.toString(encoding || this._encoding);
+    }
+    /**
+     * Inserts a null-terminated String.
+     *
+     * @param value { String } The String value to write.
+     * @param arg2 { Number | String } The offset to write the string to, or the BufferEncoding to use.
+     * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+     *
+     * @return this
+     */
+    insertStringNT(value, offset, encoding) {
+        utils_1.checkOffsetValue(offset);
+        // Write Values
+        this.insertString(value, offset, encoding);
+        this.insertUInt8(0x00, offset + value.length);
+        return this;
+    }
+    /**
+     * Writes a null-terminated String.
+     *
+     * @param value { String } The String value to write.
+     * @param arg2 { Number | String } The offset to write the string to, or the BufferEncoding to use.
+     * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+     *
+     * @return this
+     */
+    writeStringNT(value, arg2, encoding) {
+        // Write Values
+        this.writeString(value, arg2, encoding);
+        this.writeUInt8(0x00, typeof arg2 === 'number' ? arg2 + value.length : this.writeOffset);
+        return this;
+    }
+    // Buffers
+    /**
+     * Reads a Buffer from the internal read position.
+     *
+     * @param length { Number } The length of data to read as a Buffer.
+     *
+     * @return { Buffer }
+     */
+    readBuffer(length) {
+        if (typeof length !== 'undefined') {
+            utils_1.checkLengthValue(length);
+        }
+        const lengthVal = typeof length === 'number' ? length : this.length;
+        const endPoint = Math.min(this.length, this._readOffset + lengthVal);
+        // Read buffer value
+        const value = this._buff.slice(this._readOffset, endPoint);
+        // Increment internal Buffer read offset
+        this._readOffset = endPoint;
+        return value;
+    }
+    /**
+     * Writes a Buffer to the current write position.
+     *
+     * @param value { Buffer } The Buffer to write.
+     * @param offset { Number } The offset to write the Buffer to.
+     *
+     * @return this
+     */
+    insertBuffer(value, offset) {
+        utils_1.checkOffsetValue(offset);
+        return this._handleBuffer(value, true, offset);
+    }
+    /**
+     * Writes a Buffer to the current write position.
+     *
+     * @param value { Buffer } The Buffer to write.
+     * @param offset { Number } The offset to write the Buffer to.
+     *
+     * @return this
+     */
+    writeBuffer(value, offset) {
+        return this._handleBuffer(value, false, offset);
+    }
+    /**
+     * Reads a null-terminated Buffer from the current read poisiton.
+     *
+     * @return { Buffer }
+     */
+    readBufferNT() {
+        // Set null character position to the end SmartBuffer instance.
+        let nullPos = this.length;
+        // Find next null character (if one is not found, default from above is used)
+        for (let i = this._readOffset; i < this.length; i++) {
+            if (this._buff[i] === 0x00) {
+                nullPos = i;
+                break;
+            }
+        }
+        // Read value
+        const value = this._buff.slice(this._readOffset, nullPos);
+        // Increment internal Buffer read offset
+        this._readOffset = nullPos + 1;
+        return value;
+    }
+    /**
+     * Inserts a null-terminated Buffer.
+     *
+     * @param value { Buffer } The Buffer to write.
+     * @param offset { Number } The offset to write the Buffer to.
+     *
+     * @return this
+     */
+    insertBufferNT(value, offset) {
+        utils_1.checkOffsetValue(offset);
+        // Write Values
+        this.insertBuffer(value, offset);
+        this.insertUInt8(0x00, offset + value.length);
+        return this;
+    }
+    /**
+     * Writes a null-terminated Buffer.
+     *
+     * @param value { Buffer } The Buffer to write.
+     * @param offset { Number } The offset to write the Buffer to.
+     *
+     * @return this
+     */
+    writeBufferNT(value, offset) {
+        // Checks for valid numberic value;
+        if (typeof offset !== 'undefined') {
+            utils_1.checkOffsetValue(offset);
+        }
+        // Write Values
+        this.writeBuffer(value, offset);
+        this.writeUInt8(0x00, typeof offset === 'number' ? offset + value.length : this._writeOffset);
+        return this;
+    }
+    /**
+     * Clears the SmartBuffer instance to its original empty state.
+     */
+    clear() {
+        this._writeOffset = 0;
+        this._readOffset = 0;
+        this.length = 0;
+        return this;
+    }
+    /**
+     * Gets the remaining data left to be read from the SmartBuffer instance.
+     *
+     * @return { Number }
+     */
+    remaining() {
+        return this.length - this._readOffset;
+    }
+    /**
+     * Gets the current read offset value of the SmartBuffer instance.
+     *
+     * @return { Number }
+     */
+    get readOffset() {
+        return this._readOffset;
+    }
+    /**
+     * Sets the read offset value of the SmartBuffer instance.
+     *
+     * @param offset { Number } - The offset value to set.
+     */
+    set readOffset(offset) {
+        utils_1.checkOffsetValue(offset);
+        // Check for bounds.
+        utils_1.checkTargetOffset(offset, this);
+        this._readOffset = offset;
+    }
+    /**
+     * Gets the current write offset value of the SmartBuffer instance.
+     *
+     * @return { Number }
+     */
+    get writeOffset() {
+        return this._writeOffset;
+    }
+    /**
+     * Sets the write offset value of the SmartBuffer instance.
+     *
+     * @param offset { Number } - The offset value to set.
+     */
+    set writeOffset(offset) {
+        utils_1.checkOffsetValue(offset);
+        // Check for bounds.
+        utils_1.checkTargetOffset(offset, this);
+        this._writeOffset = offset;
+    }
+    /**
+     * Gets the currently set string encoding of the SmartBuffer instance.
+     *
+     * @return { BufferEncoding } The string Buffer encoding currently set.
+     */
+    get encoding() {
+        return this._encoding;
+    }
+    /**
+     * Sets the string encoding of the SmartBuffer instance.
+     *
+     * @param encoding { BufferEncoding } The string Buffer encoding to set.
+     */
+    set encoding(encoding) {
+        utils_1.checkEncoding(encoding);
+        this._encoding = encoding;
+    }
+    /**
+     * Gets the underlying internal Buffer. (This includes unmanaged data in the Buffer)
+     *
+     * @return { Buffer } The Buffer value.
+     */
+    get internalBuffer() {
+        return this._buff;
+    }
+    /**
+     * Gets the value of the internal managed Buffer (Includes managed data only)
+     *
+     * @param { Buffer }
+     */
+    toBuffer() {
+        return this._buff.slice(0, this.length);
+    }
+    /**
+     * Gets the String value of the internal managed Buffer
+     *
+     * @param encoding { String } The BufferEncoding to display the Buffer as (defaults to instance level encoding).
+     */
+    toString(encoding) {
+        const encodingVal = typeof encoding === 'string' ? encoding : this._encoding;
+        // Check for invalid encoding.
+        utils_1.checkEncoding(encodingVal);
+        return this._buff.toString(encodingVal, 0, this.length);
+    }
+    /**
+     * Destroys the SmartBuffer instance.
+     */
+    destroy() {
+        this.clear();
+        return this;
+    }
+    /**
+     * Handles inserting and writing strings.
+     *
+     * @param value { String } The String value to insert.
+     * @param isInsert { Boolean } True if inserting a string, false if writing.
+     * @param arg2 { Number | String } The offset to insert the string at, or the BufferEncoding to use.
+     * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+     */
+    _handleString(value, isInsert, arg3, encoding) {
+        let offsetVal = this._writeOffset;
+        let encodingVal = this._encoding;
+        // Check for offset
+        if (typeof arg3 === 'number') {
+            offsetVal = arg3;
+            // Check for encoding
+        }
+        else if (typeof arg3 === 'string') {
+            utils_1.checkEncoding(arg3);
+            encodingVal = arg3;
+        }
+        // Check for encoding (third param)
+        if (typeof encoding === 'string') {
+            utils_1.checkEncoding(encoding);
+            encodingVal = encoding;
+        }
+        // Calculate bytelength of string.
+        const byteLength = Buffer.byteLength(value, encodingVal);
+        // Ensure there is enough internal Buffer capacity.
+        if (isInsert) {
+            this.ensureInsertable(byteLength, offsetVal);
+        }
+        else {
+            this._ensureWriteable(byteLength, offsetVal);
+        }
+        // Write value
+        this._buff.write(value, offsetVal, byteLength, encodingVal);
+        // Increment internal Buffer write offset;
+        if (isInsert) {
+            this._writeOffset += byteLength;
+        }
+        else {
+            // If an offset was given, check to see if we wrote beyond the current writeOffset.
+            if (typeof arg3 === 'number') {
+                this._writeOffset = Math.max(this._writeOffset, offsetVal + byteLength);
+            }
+            else {
+                // If no offset was given, we wrote to the end of the SmartBuffer so increment writeOffset.
+                this._writeOffset += byteLength;
+            }
+        }
+        return this;
+    }
+    /**
+     * Handles writing or insert of a Buffer.
+     *
+     * @param value { Buffer } The Buffer to write.
+     * @param offset { Number } The offset to write the Buffer to.
+     */
+    _handleBuffer(value, isInsert, offset) {
+        const offsetVal = typeof offset === 'number' ? offset : this._writeOffset;
+        // Ensure there is enough internal Buffer capacity.
+        if (isInsert) {
+            this.ensureInsertable(value.length, offsetVal);
+        }
+        else {
+            this._ensureWriteable(value.length, offsetVal);
+        }
+        // Write buffer value
+        value.copy(this._buff, offsetVal);
+        // Increment internal Buffer write offset;
+        if (isInsert) {
+            this._writeOffset += value.length;
+        }
+        else {
+            // If an offset was given, check to see if we wrote beyond the current writeOffset.
+            if (typeof offset === 'number') {
+                this._writeOffset = Math.max(this._writeOffset, offsetVal + value.length);
+            }
+            else {
+                // If no offset was given, we wrote to the end of the SmartBuffer so increment writeOffset.
+                this._writeOffset += value.length;
+            }
+        }
+        return this;
+    }
+    /**
+     * Ensures that the internal Buffer is large enough to read data.
+     *
+     * @param length { Number } The length of the data that needs to be read.
+     * @param offset { Number } The offset of the data that needs to be read.
+     */
+    ensureReadable(length, offset) {
+        // Offset value defaults to managed read offset.
+        let offsetVal = this._readOffset;
+        // If an offset was provided, use it.
+        if (typeof offset !== 'undefined') {
+            // Checks for valid numberic value;
+            utils_1.checkOffsetValue(offset);
+            // Overide with custom offset.
+            offsetVal = offset;
+        }
+        // Checks if offset is below zero, or the offset+length offset is beyond the total length of the managed data.
+        if (offsetVal < 0 || offsetVal + length > this.length) {
+            throw new Error(utils_1.ERRORS.INVALID_READ_BEYOND_BOUNDS);
+        }
+    }
+    /**
+     * Ensures that the internal Buffer is large enough to insert data.
+     *
+     * @param dataLength { Number } The length of the data that needs to be written.
+     * @param offset { Number } The offset of the data to be written.
+     */
+    ensureInsertable(dataLength, offset) {
+        // Checks for valid numberic value;
+        utils_1.checkOffsetValue(offset);
+        // Ensure there is enough internal Buffer capacity.
+        this._ensureCapacity(this.length + dataLength);
+        // If an offset was provided and its not the very end of the buffer, copy data into appropriate location in regards to the offset.
+        if (offset < this.length) {
+            this._buff.copy(this._buff, offset + dataLength, offset, this._buff.length);
+        }
+        // Adjust tracked smart buffer length
+        if (offset + dataLength > this.length) {
+            this.length = offset + dataLength;
+        }
+        else {
+            this.length += dataLength;
+        }
+    }
+    /**
+     * Ensures that the internal Buffer is large enough to write data.
+     *
+     * @param dataLength { Number } The length of the data that needs to be written.
+     * @param offset { Number } The offset of the data to be written (defaults to writeOffset).
+     */
+    _ensureWriteable(dataLength, offset) {
+        const offsetVal = typeof offset === 'number' ? offset : this._writeOffset;
+        // Ensure enough capacity to write data.
+        this._ensureCapacity(offsetVal + dataLength);
+        // Adjust SmartBuffer length (if offset + length is larger than managed length, adjust length)
+        if (offsetVal + dataLength > this.length) {
+            this.length = offsetVal + dataLength;
+        }
+    }
+    /**
+     * Ensures that the internal Buffer is large enough to write at least the given amount of data.
+     *
+     * @param minLength { Number } The minimum length of the data needs to be written.
+     */
+    _ensureCapacity(minLength) {
+        const oldLength = this._buff.length;
+        if (minLength > oldLength) {
+            let data = this._buff;
+            let newLength = (oldLength * 3) / 2 + 1;
+            if (newLength < minLength) {
+                newLength = minLength;
+            }
+            this._buff = Buffer.allocUnsafe(newLength);
+            data.copy(this._buff, 0, 0, oldLength);
+        }
+    }
+    /**
+     * Reads a numeric number value using the provided function.
+     *
+     * @typeparam T { number | bigint } The type of the value to be read
+     *
+     * @param func { Function(offset: number) => number } The function to read data on the internal Buffer with.
+     * @param byteSize { Number } The number of bytes read.
+     * @param offset { Number } The offset to read from (optional). When this is not provided, the managed readOffset is used instead.
+     *
+     * @returns { T } the number value
+     */
+    _readNumberValue(func, byteSize, offset) {
+        this.ensureReadable(byteSize, offset);
+        // Call Buffer.readXXXX();
+        const value = func.call(this._buff, typeof offset === 'number' ? offset : this._readOffset);
+        // Adjust internal read offset if an optional read offset was not provided.
+        if (typeof offset === 'undefined') {
+            this._readOffset += byteSize;
+        }
+        return value;
+    }
+    /**
+     * Inserts a numeric number value based on the given offset and value.
+     *
+     * @typeparam T { number | bigint } The type of the value to be written
+     *
+     * @param func { Function(offset: T, offset?) => number} The function to write data on the internal Buffer with.
+     * @param byteSize { Number } The number of bytes written.
+     * @param value { T } The number value to write.
+     * @param offset { Number } the offset to write the number at (REQUIRED).
+     *
+     * @returns SmartBuffer this buffer
+     */
+    _insertNumberValue(func, byteSize, value, offset) {
+        // Check for invalid offset values.
+        utils_1.checkOffsetValue(offset);
+        // Ensure there is enough internal Buffer capacity. (raw offset is passed)
+        this.ensureInsertable(byteSize, offset);
+        // Call buffer.writeXXXX();
+        func.call(this._buff, value, offset);
+        // Adjusts internally managed write offset.
+        this._writeOffset += byteSize;
+        return this;
+    }
+    /**
+     * Writes a numeric number value based on the given offset and value.
+     *
+     * @typeparam T { number | bigint } The type of the value to be written
+     *
+     * @param func { Function(offset: T, offset?) => number} The function to write data on the internal Buffer with.
+     * @param byteSize { Number } The number of bytes written.
+     * @param value { T } The number value to write.
+     * @param offset { Number } the offset to write the number at (REQUIRED).
+     *
+     * @returns SmartBuffer this buffer
+     */
+    _writeNumberValue(func, byteSize, value, offset) {
+        // If an offset was provided, validate it.
+        if (typeof offset === 'number') {
+            // Check if we're writing beyond the bounds of the managed data.
+            if (offset < 0) {
+                throw new Error(utils_1.ERRORS.INVALID_WRITE_BEYOND_BOUNDS);
+            }
+            utils_1.checkOffsetValue(offset);
+        }
+        // Default to writeOffset if no offset value was given.
+        const offsetVal = typeof offset === 'number' ? offset : this._writeOffset;
+        // Ensure there is enough internal Buffer capacity. (raw offset is passed)
+        this._ensureWriteable(byteSize, offsetVal);
+        func.call(this._buff, value, offsetVal);
+        // If an offset was given, check to see if we wrote beyond the current writeOffset.
+        if (typeof offset === 'number') {
+            this._writeOffset = Math.max(this._writeOffset, offsetVal + byteSize);
+        }
+        else {
+            // If no numeric offset was given, we wrote to the end of the SmartBuffer so increment writeOffset.
+            this._writeOffset += byteSize;
+        }
+        return this;
+    }
+}
+exports.SmartBuffer = SmartBuffer;
+//# sourceMappingURL=smartbuffer.js.map
\ No newline at end of file
diff --git a/node_modules/smart-buffer/build/smartbuffer.js.map b/node_modules/smart-buffer/build/smartbuffer.js.map
new file mode 100644
index 0000000..37f0d6e
--- /dev/null
+++ b/node_modules/smart-buffer/build/smartbuffer.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/node_modules/smart-buffer/build/utils.js b/node_modules/smart-buffer/build/utils.js
new file mode 100644
index 0000000..6d55981
--- /dev/null
+++ b/node_modules/smart-buffer/build/utils.js
@@ -0,0 +1,108 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const buffer_1 = require("buffer");
+/**
+ * Error strings
+ */
+const ERRORS = {
+    INVALID_ENCODING: 'Invalid encoding provided. Please specify a valid encoding the internal Node.js Buffer supports.',
+    INVALID_SMARTBUFFER_SIZE: 'Invalid size provided. Size must be a valid integer greater than zero.',
+    INVALID_SMARTBUFFER_BUFFER: 'Invalid Buffer provided in SmartBufferOptions.',
+    INVALID_SMARTBUFFER_OBJECT: 'Invalid SmartBufferOptions object supplied to SmartBuffer constructor or factory methods.',
+    INVALID_OFFSET: 'An invalid offset value was provided.',
+    INVALID_OFFSET_NON_NUMBER: 'An invalid offset value was provided. A numeric value is required.',
+    INVALID_LENGTH: 'An invalid length value was provided.',
+    INVALID_LENGTH_NON_NUMBER: 'An invalid length value was provived. A numeric value is required.',
+    INVALID_TARGET_OFFSET: 'Target offset is beyond the bounds of the internal SmartBuffer data.',
+    INVALID_TARGET_LENGTH: 'Specified length value moves cursor beyong the bounds of the internal SmartBuffer data.',
+    INVALID_READ_BEYOND_BOUNDS: 'Attempted to read beyond the bounds of the managed data.',
+    INVALID_WRITE_BEYOND_BOUNDS: 'Attempted to write beyond the bounds of the managed data.'
+};
+exports.ERRORS = ERRORS;
+/**
+ * Checks if a given encoding is a valid Buffer encoding. (Throws an exception if check fails)
+ *
+ * @param { String } encoding The encoding string to check.
+ */
+function checkEncoding(encoding) {
+    if (!buffer_1.Buffer.isEncoding(encoding)) {
+        throw new Error(ERRORS.INVALID_ENCODING);
+    }
+}
+exports.checkEncoding = checkEncoding;
+/**
+ * Checks if a given number is a finite integer. (Throws an exception if check fails)
+ *
+ * @param { Number } value The number value to check.
+ */
+function isFiniteInteger(value) {
+    return typeof value === 'number' && isFinite(value) && isInteger(value);
+}
+exports.isFiniteInteger = isFiniteInteger;
+/**
+ * Checks if an offset/length value is valid. (Throws an exception if check fails)
+ *
+ * @param value The value to check.
+ * @param offset True if checking an offset, false if checking a length.
+ */
+function checkOffsetOrLengthValue(value, offset) {
+    if (typeof value === 'number') {
+        // Check for non finite/non integers
+        if (!isFiniteInteger(value) || value < 0) {
+            throw new Error(offset ? ERRORS.INVALID_OFFSET : ERRORS.INVALID_LENGTH);
+        }
+    }
+    else {
+        throw new Error(offset ? ERRORS.INVALID_OFFSET_NON_NUMBER : ERRORS.INVALID_LENGTH_NON_NUMBER);
+    }
+}
+/**
+ * Checks if a length value is valid. (Throws an exception if check fails)
+ *
+ * @param { Number } length The value to check.
+ */
+function checkLengthValue(length) {
+    checkOffsetOrLengthValue(length, false);
+}
+exports.checkLengthValue = checkLengthValue;
+/**
+ * Checks if a offset value is valid. (Throws an exception if check fails)
+ *
+ * @param { Number } offset The value to check.
+ */
+function checkOffsetValue(offset) {
+    checkOffsetOrLengthValue(offset, true);
+}
+exports.checkOffsetValue = checkOffsetValue;
+/**
+ * Checks if a target offset value is out of bounds. (Throws an exception if check fails)
+ *
+ * @param { Number } offset The offset value to check.
+ * @param { SmartBuffer } buff The SmartBuffer instance to check against.
+ */
+function checkTargetOffset(offset, buff) {
+    if (offset < 0 || offset > buff.length) {
+        throw new Error(ERRORS.INVALID_TARGET_OFFSET);
+    }
+}
+exports.checkTargetOffset = checkTargetOffset;
+/**
+ * Determines whether a given number is a integer.
+ * @param value The number to check.
+ */
+function isInteger(value) {
+    return typeof value === 'number' && isFinite(value) && Math.floor(value) === value;
+}
+/**
+ * Throws if Node.js version is too low to support bigint
+ */
+function bigIntAndBufferInt64Check(bufferMethod) {
+    if (typeof BigInt === 'undefined') {
+        throw new Error('Platform does not support JS BigInt type.');
+    }
+    if (typeof buffer_1.Buffer.prototype[bufferMethod] === 'undefined') {
+        throw new Error(`Platform does not support Buffer.prototype.${bufferMethod}.`);
+    }
+}
+exports.bigIntAndBufferInt64Check = bigIntAndBufferInt64Check;
+//# sourceMappingURL=utils.js.map
\ No newline at end of file
diff --git a/node_modules/smart-buffer/build/utils.js.map b/node_modules/smart-buffer/build/utils.js.map
new file mode 100644
index 0000000..fc7388d
--- /dev/null
+++ b/node_modules/smart-buffer/build/utils.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/node_modules/smart-buffer/docs/CHANGELOG.md b/node_modules/smart-buffer/docs/CHANGELOG.md
new file mode 100644
index 0000000..1199a4d
--- /dev/null
+++ b/node_modules/smart-buffer/docs/CHANGELOG.md
@@ -0,0 +1,70 @@
+# Change Log
+## 4.1.0
+> Released 07/24/2019
+* Adds int64 support for node v12+
+* Drops support for node v4
+
+## 4.0
+> Released 10/21/2017
+* Major breaking changes arriving in v4.
+
+### New Features
+* Ability to read data from a specific offset. ex: readInt8(5)
+* Ability to write over data when an offset is given (see breaking changes) ex:  writeInt8(5, 0);
+* Ability to set internal read and write offsets.
+
+
+
+### Breaking Changes
+
+* Old constructor patterns have been completely removed. It's now required to use the SmartBuffer.fromXXX() factory constructors. Read more on the v4 docs.
+* rewind(), skip(), moveTo() have been removed.
+* Internal private properties are now prefixed with underscores (_).
+* **All** writeXXX() methods that are given an offset will now **overwrite data** instead of insert
+* insertXXX() methods have been added for when you want to insert data at a specific offset (this replaces the old behavior of writeXXX() when an offset was provided)
+
+
+### Other Changes
+* Standardizd error messaging
+* Standardized offset/length bounds and sanity checking
+* General overall cleanup of code.
+
+## 3.0.3
+> Released 02/19/2017
+* Adds missing type definitions for some internal functions.
+
+## 3.0.2
+> Released 02/17/2017
+
+### Bug Fixes
+* Fixes a bug where using readString with a length of zero resulted in reading the remaining data instead of returning an empty string. (Fixed by Seldszar)
+
+## 3.0.1
+> Released 02/15/2017
+
+### Bug Fixes
+* Fixes a bug leftover from the TypeScript refactor where .readIntXXX() resulted in .readUIntXXX() being called by mistake.
+
+## 3.0
+> Released 02/12/2017
+
+### Bug Fixes
+* readUIntXXXX() methods will now throw an exception if they attempt to read beyond the bounds of the valid buffer data available.
+    * **Note** This is technically a breaking change, so version is bumped to 3.x.
+
+## 2.0
+> Relased 01/30/2017
+
+### New Features:
+
+* Entire package re-written in TypeScript (2.1)
+* Backwards compatibility is preserved for now
+* New factory methods for creating SmartBuffer instances
+    * SmartBuffer.fromSize()
+    * SmartBuffer.fromBuffer()
+    * SmartBuffer.fromOptions()
+* New SmartBufferOptions constructor options
+* Added additional tests
+
+### Bug Fixes:
+* Fixes a bug where reading null terminated strings may result in an exception.
diff --git a/node_modules/smart-buffer/docs/README_v3.md b/node_modules/smart-buffer/docs/README_v3.md
new file mode 100644
index 0000000..b7c48b8
--- /dev/null
+++ b/node_modules/smart-buffer/docs/README_v3.md
@@ -0,0 +1,367 @@
+smart-buffer  [![Build Status](https://travis-ci.org/JoshGlazebrook/smart-buffer.svg?branch=master)](https://travis-ci.org/JoshGlazebrook/smart-buffer)  [![Coverage Status](https://coveralls.io/repos/github/JoshGlazebrook/smart-buffer/badge.svg?branch=master)](https://coveralls.io/github/JoshGlazebrook/smart-buffer?branch=master)
+=============
+
+smart-buffer is a light Buffer wrapper that takes away the need to keep track of what position to read and write data to and from the underlying Buffer. It also adds null terminating string operations and **grows** as you add more data.
+
+![stats](https://nodei.co/npm/smart-buffer.png?downloads=true&downloadRank=true&stars=true "stats")
+
+### What it's useful for:
+
+I created smart-buffer because I wanted to simplify the process of using Buffer for building and reading network packets to send over a socket. Rather than having to keep track of which position I need to write a UInt16 to after adding a string of variable length, I simply don't have to.
+
+Key Features:
+* Proxies all of the Buffer write and read functions.
+* Keeps track of read and write positions for you.
+* Grows the internal Buffer as you add data to it. 
+* Useful string operations. (Null terminating strings)
+* Allows for inserting values at specific points in the internal Buffer.
+* Built in TypeScript
+* Type Definitions Provided
+
+Requirements:
+* Node v4.0+ is supported at this time.  (Versions prior to 2.0 will work on node 0.10)
+
+
+#### Note:
+smart-buffer can be used for writing to an underlying buffer as well as reading from it. It however does not function correctly if you're mixing both read and write operations with each other.
+
+## Breaking Changes with 2.0
+The latest version (2.0+) is written in TypeScript, and are compiled to ES6 Javascript. This means the earliest Node.js it supports will be 4.x (in strict mode.) If you're using version 6 and above it will work without any issues. From an API standpoint, 2.0 is backwards compatible. The only difference is SmartBuffer is not exported directly as the root module.
+
+## Breaking Changes with 3.0
+Starting with 3.0, if any of the readIntXXXX() methods are called and the requested data is larger than the bounds of the internally managed valid buffer data, an exception will now be thrown.
+
+## Installing:
+
+`npm install smart-buffer`
+
+or
+
+`yarn add smart-buffer`
+
+Note: The published NPM package includes the built javascript library. 
+If you cloned this repo and wish to build the library manually use:
+
+`tsc -p ./`
+
+## Using smart-buffer
+
+### Example
+
+Say you were building a packet that had to conform to the following protocol:
+
+`[PacketType:2][PacketLength:2][Data:XX]`
+
+To build this packet using the vanilla Buffer class, you would have to count up the length of the data payload beforehand. You would also need to keep track of the current "cursor" position in your Buffer so you write everything in the right places. With smart-buffer you don't have to do either of those things.
+
+```javascript
+// 1.x (javascript)
+var SmartBuffer = require('smart-buffer');
+
+// 1.x (typescript)
+import SmartBuffer = require('smart-buffer');
+
+// 2.x+ (javascript)
+const SmartBuffer = require('smart-buffer').SmartBuffer;
+
+// 2.x+ (typescript)
+import { SmartBuffer, SmartBufferOptions} from 'smart-buffer';
+
+function createLoginPacket(username, password, age, country) {
+    let packet = new SmartBuffer();
+    packet.writeUInt16LE(0x0060); // Login Packet Type/ID
+    packet.writeStringNT(username);
+    packet.writeStringNT(password);
+    packet.writeUInt8(age);
+    packet.writeStringNT(country);
+    packet.writeUInt16LE(packet.length - 2, 2);
+    
+    return packet.toBuffer();
+}
+```
+With the above function, you now can do this:
+```javascript
+let login = createLoginPacket("Josh", "secret123", 22, "United States");
+
+// <Buffer 60 00 1e 00 4a 6f 73 68 00 73 65 63 72 65 74 31 32 33 00 16 55 6e 69 74 65 64 20 53 74 61 74 65 73 00>
+```
+Notice that the `[PacketLength:2]` part of the packet was inserted after we had added everything else, and as shown in the Buffer dump above, is in the correct location along with everything else.
+
+Reading back the packet we created above is just as easy:
+```javascript
+
+let reader = SmartBuffer.fromBuffer(login);
+
+let logininfo = {
+    packetType: reader.readUInt16LE(),
+    packetLength: reader.readUInt16LE(),
+    username: reader.readStringNT(),
+    password: reader.readStringNT(),
+    age: reader.readUInt8(),
+    country: reader.readStringNT()
+};
+
+/*
+{ 
+    packetType: 96, (0x0060)
+    packetLength: 30,
+    username: 'Josh',
+    password: 'secret123',
+    age: 22,
+    country: 'United States' 
+};
+*/
+```
+
+# Api Reference:
+
+### Constructing a smart-buffer
+
+smart-buffer has a few different ways to construct an instance. Starting with version 2.0, the following factory methods are preffered.
+
+```javascript
+let SmartBuffer = require('smart-buffer');
+
+// Creating SmartBuffer from existing Buffer
+let buff = SmartBuffer.fromBuffer(buffer); // Creates instance from buffer. (Uses default utf8 encoding)
+let buff = SmartBuffer.fromBuffer(buffer, 'ascii'); // Creates instance from buffer with ascii encoding for Strings. 
+
+// Creating SmartBuffer with specified internal Buffer size.
+let buff = SmartBuffer.fromSize(1024); // Creates instance with internal Buffer size of 1024.
+let buff = SmartBuffer.fromSize(1024, 'utf8'); // Creates instance with intenral Buffer size of 1024, and utf8 encoding. 
+
+// Creating SmartBuffer with options object. This one specifies size and encoding.
+let buff = SmartBuffer.fromOptions({
+    size: 1024,
+    encoding: 'ascii'
+});
+
+// Creating SmartBuffer with options object. This one specified an existing Buffer.
+let buff = SmartBuffer.fromOptions({
+    buff: buffer
+});
+
+// Just want a regular SmartBuffer with all default options?
+let buff = new SmartBuffer();
+```
+
+## Backwards Compatibility:
+
+All constructors used prior to 2.0 still are supported. However it's not recommended to use these.
+
+```javascript
+let writer = new SmartBuffer();               // Defaults to utf8, 4096 length internal Buffer.
+let writer = new SmartBuffer(1024);           // Defaults to utf8, 1024 length internal Buffer.
+let writer = new SmartBuffer('ascii');         // Sets to ascii encoding, 4096 length internal buffer.
+let writer = new SmartBuffer(1024, 'ascii');  // Sets to ascii encoding, 1024 length internal buffer.
+```
+
+## Reading Data
+
+smart-buffer supports all of the common read functions you will find in the vanilla Buffer class. The only difference is, you do not need to specify which location to start reading from. This is possible because as you read data out of a smart-buffer, it automatically progresses an internal read offset/position to know where to pick up from on the next read.
+
+## Reading Numeric Values
+
+When numeric values, you simply need to call the function you want, and the data is returned.
+
+Supported Operations:
+* readInt8
+* readInt16BE
+* readInt16LE
+* readInt32BE
+* readInt32LE
+* readBigInt64LE
+* readBigInt64BE
+* readUInt8
+* readUInt16BE
+* readUInt16LE
+* readUInt32BE
+* readUInt32LE
+* readBigUInt64LE
+* readBigUInt64BE
+* readFloatBE
+* readFloatLE
+* readDoubleBE
+* readDoubleLE
+
+```javascript
+let reader = new SmartBuffer(somebuffer);
+let num = reader.readInt8();
+```
+
+## Reading String Values
+
+When reading String values, you can either choose to read a null terminated string, or a string of a specified length.
+
+### SmartBuffer.readStringNT( [encoding] )
+> `String` **String encoding to use**  - Defaults to the encoding set in the constructor. 
+
+returns `String`
+
+> Note: When readStringNT is called and there is no null character found, smart-buffer will read to the end of the internal Buffer.
+
+### SmartBuffer.readString( [length] )
+### SmartBuffer.readString( [encoding] )
+### SmartBuffer.readString( [length], [encoding] )
+> `Number` **Length of the string to read**
+
+> `String` **String encoding to use** - Defaults to the encoding set in the constructor, or utf8.
+
+returns `String`
+
+> Note: When readString is called without a specified length, smart-buffer will read to the end of the internal Buffer.
+
+
+
+## Reading Buffer Values
+
+### SmartBuffer.readBuffer( length )
+> `Number` **Length of data to read into a Buffer**
+
+returns `Buffer`
+
+> Note: This function uses `slice` to retrieve the Buffer.
+
+
+### SmartBuffer.readBufferNT()
+
+returns `Buffer`
+
+> Note: This reads the next sequence of bytes in the buffer until a null (0x00) value is found. (Null terminated buffer)
+> Note: This function uses `slice` to retrieve the Buffer.
+
+
+## Writing Data
+
+smart-buffer supports all of the common write functions you will find in the vanilla Buffer class. The only difference is, you do not need to specify which location to write to in your Buffer by default. You do however have the option of **inserting** a piece of data into your smart-buffer at a given location. 
+
+
+## Writing Numeric Values
+
+
+For numeric values, you simply need to call the function you want, and the data is written at the end of the internal Buffer's current write position. You can specify a offset/position to **insert** the given value at, but keep in mind this does not override data at the given position. This feature also does not work properly when inserting a value beyond the current internal length of the smart-buffer (length being the .length property of the smart-buffer instance you're writing to)
+
+Supported Operations:
+* writeInt8
+* writeInt16BE
+* writeInt16LE
+* writeInt32BE
+* writeInt32LE
+* writeBigInt64BE
+* writeBigInt64LE
+* writeUInt8
+* writeUInt16BE
+* writeUInt16LE
+* writeUInt32BE
+* writeUInt32LE
+* writeBigUInt64BE
+* writeBigUInt64LE
+* writeFloatBE
+* writeFloatLE
+* writeDoubleBE
+* writeDoubleLE
+
+The following signature is the same for all the above functions:
+
+### SmartBuffer.writeInt8( value, [offset] )
+> `Number` **A valid Int8 number**
+
+> `Number` **The position to insert this value at** 
+
+returns this 
+
+> Note: All write operations return `this` to allow for chaining.
+
+## Writing String Values
+
+When reading String values, you can either choose to write a null terminated string, or a non null terminated string.
+
+### SmartBuffer.writeStringNT( value, [offset], [encoding] )
+### SmartBuffer.writeStringNT( value, [offset] )
+### SmartBuffer.writeStringNT( value, [encoding] )
+> `String` **String value to write**
+
+> `Number` **The position to insert this String at**
+
+> `String` **The String encoding to use.** - Defaults to the encoding set in the constructor, or utf8.
+
+returns this
+
+### SmartBuffer.writeString( value, [offset], [encoding] )
+### SmartBuffer.writeString( value, [offset] )
+### SmartBuffer.writeString( value, [encoding] )
+> `String` **String value to write**
+
+> `Number` **The position to insert this String at**
+
+> `String` **The String encoding to use** - Defaults to the encoding set in the constructor, or utf8.
+
+returns this
+
+
+## Writing Buffer Values
+
+### SmartBuffer.writeBuffer( value, [offset] )
+> `Buffer` **Buffer value to write**
+
+> `Number` **The position to insert this Buffer's content at**
+
+returns this
+
+### SmartBuffer.writeBufferNT( value, [offset] )
+> `Buffer` **Buffer value to write**
+
+> `Number` **The position to insert this Buffer's content at**
+
+returns this
+
+
+## Utility Functions
+
+### SmartBuffer.clear()
+Resets the SmartBuffer to its default state where it can be reused for reading or writing.
+
+### SmartBuffer.remaining()
+
+returns `Number` The amount of data left to read based on the current read Position.
+
+### SmartBuffer.skip( value )
+> `Number` **The amount of bytes to skip ahead**
+
+Skips the read position ahead by the given value.
+
+returns this
+
+### SmartBuffer.rewind( value )
+> `Number` **The amount of bytes to reward backwards**
+
+Rewinds the read position backwards by the given value.
+
+returns this
+
+### SmartBuffer.moveTo( position )
+> `Number` **The point to skip the read position to**
+
+Moves the read position to the given point.
+returns this
+
+### SmartBuffer.toBuffer()
+
+returns `Buffer` A Buffer containing the contents of the internal Buffer.
+
+> Note: This uses the slice function.
+
+### SmartBuffer.toString( [encoding] )
+> `String` **The String encoding to use** - Defaults to the encoding set in the constructor, or utf8.
+
+returns `String` The internal Buffer in String representation.
+
+## Properties
+
+### SmartBuffer.length
+
+returns `Number` **The length of the data that is being tracked in the internal Buffer** - Does NOT return the absolute length of the internal Buffer being written to.
+
+## License
+
+This work is licensed under the [MIT license](http://en.wikipedia.org/wiki/MIT_License).
\ No newline at end of file
diff --git a/node_modules/smart-buffer/docs/ROADMAP.md b/node_modules/smart-buffer/docs/ROADMAP.md
new file mode 100644
index 0000000..e69de29
diff --git a/node_modules/smart-buffer/package.json b/node_modules/smart-buffer/package.json
new file mode 100644
index 0000000..2f326f2
--- /dev/null
+++ b/node_modules/smart-buffer/package.json
@@ -0,0 +1,79 @@
+{
+  "name": "smart-buffer",
+  "version": "4.2.0",
+  "description": "smart-buffer is a Buffer wrapper that adds automatic read & write offset tracking, string operations, data insertions, and more.",
+  "main": "build/smartbuffer.js",
+  "contributors": ["syvita"],
+  "homepage": "https://github.com/JoshGlazebrook/smart-buffer/",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/JoshGlazebrook/smart-buffer.git"
+  },
+  "bugs": {
+    "url": "https://github.com/JoshGlazebrook/smart-buffer/issues"
+  },
+  "keywords": [
+    "buffer",
+    "smart",
+    "packet",
+    "serialize",
+    "network",
+    "cursor",
+    "simple"
+  ],
+  "engines": {
+    "node": ">= 6.0.0",
+    "npm": ">= 3.0.0"
+  },
+  "author": "Josh Glazebrook",
+  "license": "MIT",
+  "readmeFilename": "README.md",
+  "devDependencies": {
+    "@types/chai": "4.1.7",
+    "@types/mocha": "5.2.7",
+    "@types/node": "^12.0.0",
+    "chai": "4.2.0",
+    "coveralls": "3.0.5",
+    "istanbul": "^0.4.5",
+    "mocha": "6.2.0",
+    "mocha-lcov-reporter": "^1.3.0",
+    "nyc": "14.1.1",
+    "source-map-support": "0.5.12",
+    "ts-node": "8.3.0",
+    "tslint": "5.18.0",
+    "typescript": "^3.2.1"
+  },
+  "typings": "typings/smartbuffer.d.ts",
+  "dependencies": {},
+  "scripts": {
+    "prepublish": "npm install -g typescript && npm run build",
+    "test": "NODE_ENV=test mocha --recursive --require ts-node/register test/**/*.ts",
+    "coverage": "NODE_ENV=test nyc npm test",
+    "coveralls": "NODE_ENV=test nyc npm test && nyc report --reporter=text-lcov | coveralls",
+    "lint": "tslint --type-check --project tsconfig.json 'src/**/*.ts'",
+    "build": "tsc -p ./"
+  },
+  "nyc": {
+    "extension": [
+      ".ts",
+      ".tsx"
+    ],
+    "include": [
+      "src/*.ts",
+      "src/**/*.ts"
+    ],
+    "exclude": [
+      "**.*.d.ts",
+      "node_modules",
+      "typings"
+    ],
+    "require": [
+      "ts-node/register"
+    ],
+    "reporter": [
+      "json",
+      "html"
+    ],
+    "all": true
+  }
+}
diff --git a/node_modules/smart-buffer/typings/smartbuffer.d.ts b/node_modules/smart-buffer/typings/smartbuffer.d.ts
new file mode 100644
index 0000000..d07379b
--- /dev/null
+++ b/node_modules/smart-buffer/typings/smartbuffer.d.ts
@@ -0,0 +1,755 @@
+/// <reference types="node" />
+/**
+ * Object interface for constructing new SmartBuffer instances.
+ */
+interface SmartBufferOptions {
+    encoding?: BufferEncoding;
+    size?: number;
+    buff?: Buffer;
+}
+declare class SmartBuffer {
+    length: number;
+    private _encoding;
+    private _buff;
+    private _writeOffset;
+    private _readOffset;
+    /**
+     * Creates a new SmartBuffer instance.
+     *
+     * @param options { SmartBufferOptions } The SmartBufferOptions to apply to this instance.
+     */
+    constructor(options?: SmartBufferOptions);
+    /**
+     * Creates a new SmartBuffer instance with the provided internal Buffer size and optional encoding.
+     *
+     * @param size { Number } The size of the internal Buffer.
+     * @param encoding { String } The BufferEncoding to use for strings.
+     *
+     * @return { SmartBuffer }
+     */
+    static fromSize(size: number, encoding?: BufferEncoding): SmartBuffer;
+    /**
+     * Creates a new SmartBuffer instance with the provided Buffer and optional encoding.
+     *
+     * @param buffer { Buffer } The Buffer to use as the internal Buffer value.
+     * @param encoding { String } The BufferEncoding to use for strings.
+     *
+     * @return { SmartBuffer }
+     */
+    static fromBuffer(buff: Buffer, encoding?: BufferEncoding): SmartBuffer;
+    /**
+     * Creates a new SmartBuffer instance with the provided SmartBufferOptions options.
+     *
+     * @param options { SmartBufferOptions } The options to use when creating the SmartBuffer instance.
+     */
+    static fromOptions(options: SmartBufferOptions): SmartBuffer;
+    /**
+     * Type checking function that determines if an object is a SmartBufferOptions object.
+     */
+    static isSmartBufferOptions(options: SmartBufferOptions): options is SmartBufferOptions;
+    /**
+     * Reads an Int8 value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readInt8(offset?: number): number;
+    /**
+     * Reads an Int16BE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readInt16BE(offset?: number): number;
+    /**
+     * Reads an Int16LE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readInt16LE(offset?: number): number;
+    /**
+     * Reads an Int32BE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readInt32BE(offset?: number): number;
+    /**
+     * Reads an Int32LE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readInt32LE(offset?: number): number;
+    /**
+     * Reads a BigInt64BE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { BigInt }
+     */
+    readBigInt64BE(offset?: number): bigint;
+    /**
+     * Reads a BigInt64LE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { BigInt }
+     */
+    readBigInt64LE(offset?: number): bigint;
+    /**
+     * Writes an Int8 value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeInt8(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts an Int8 value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertInt8(value: number, offset: number): SmartBuffer;
+    /**
+     * Writes an Int16BE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeInt16BE(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts an Int16BE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertInt16BE(value: number, offset: number): SmartBuffer;
+    /**
+     * Writes an Int16LE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeInt16LE(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts an Int16LE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertInt16LE(value: number, offset: number): SmartBuffer;
+    /**
+     * Writes an Int32BE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeInt32BE(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts an Int32BE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertInt32BE(value: number, offset: number): SmartBuffer;
+    /**
+     * Writes an Int32LE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeInt32LE(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts an Int32LE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertInt32LE(value: number, offset: number): SmartBuffer;
+    /**
+     * Writes a BigInt64BE value to the current write position (or at optional offset).
+     *
+     * @param value { BigInt } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeBigInt64BE(value: bigint, offset?: number): SmartBuffer;
+    /**
+     * Inserts a BigInt64BE value at the given offset value.
+     *
+     * @param value { BigInt } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertBigInt64BE(value: bigint, offset: number): SmartBuffer;
+    /**
+     * Writes a BigInt64LE value to the current write position (or at optional offset).
+     *
+     * @param value { BigInt } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeBigInt64LE(value: bigint, offset?: number): SmartBuffer;
+    /**
+     * Inserts a Int64LE value at the given offset value.
+     *
+     * @param value { BigInt } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertBigInt64LE(value: bigint, offset: number): SmartBuffer;
+    /**
+     * Reads an UInt8 value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readUInt8(offset?: number): number;
+    /**
+     * Reads an UInt16BE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readUInt16BE(offset?: number): number;
+    /**
+     * Reads an UInt16LE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readUInt16LE(offset?: number): number;
+    /**
+     * Reads an UInt32BE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readUInt32BE(offset?: number): number;
+    /**
+     * Reads an UInt32LE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readUInt32LE(offset?: number): number;
+    /**
+     * Reads a BigUInt64BE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { BigInt }
+     */
+    readBigUInt64BE(offset?: number): bigint;
+    /**
+     * Reads a BigUInt64LE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { BigInt }
+     */
+    readBigUInt64LE(offset?: number): bigint;
+    /**
+     * Writes an UInt8 value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeUInt8(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts an UInt8 value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertUInt8(value: number, offset: number): SmartBuffer;
+    /**
+     * Writes an UInt16BE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeUInt16BE(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts an UInt16BE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertUInt16BE(value: number, offset: number): SmartBuffer;
+    /**
+     * Writes an UInt16LE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeUInt16LE(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts an UInt16LE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertUInt16LE(value: number, offset: number): SmartBuffer;
+    /**
+     * Writes an UInt32BE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeUInt32BE(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts an UInt32BE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertUInt32BE(value: number, offset: number): SmartBuffer;
+    /**
+     * Writes an UInt32LE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeUInt32LE(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts an UInt32LE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertUInt32LE(value: number, offset: number): SmartBuffer;
+    /**
+     * Writes a BigUInt64BE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeBigUInt64BE(value: bigint, offset?: number): SmartBuffer;
+    /**
+     * Inserts a BigUInt64BE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertBigUInt64BE(value: bigint, offset: number): SmartBuffer;
+    /**
+     * Writes a BigUInt64LE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeBigUInt64LE(value: bigint, offset?: number): SmartBuffer;
+    /**
+     * Inserts a BigUInt64LE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertBigUInt64LE(value: bigint, offset: number): SmartBuffer;
+    /**
+     * Reads an FloatBE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readFloatBE(offset?: number): number;
+    /**
+     * Reads an FloatLE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readFloatLE(offset?: number): number;
+    /**
+     * Writes a FloatBE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeFloatBE(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts a FloatBE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertFloatBE(value: number, offset: number): SmartBuffer;
+    /**
+     * Writes a FloatLE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeFloatLE(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts a FloatLE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertFloatLE(value: number, offset: number): SmartBuffer;
+    /**
+     * Reads an DoublEBE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readDoubleBE(offset?: number): number;
+    /**
+     * Reads an DoubleLE value from the current read position or an optionally provided offset.
+     *
+     * @param offset { Number } The offset to read data from (optional)
+     * @return { Number }
+     */
+    readDoubleLE(offset?: number): number;
+    /**
+     * Writes a DoubleBE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeDoubleBE(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts a DoubleBE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertDoubleBE(value: number, offset: number): SmartBuffer;
+    /**
+     * Writes a DoubleLE value to the current write position (or at optional offset).
+     *
+     * @param value { Number } The value to write.
+     * @param offset { Number } The offset to write the value at.
+     *
+     * @return this
+     */
+    writeDoubleLE(value: number, offset?: number): SmartBuffer;
+    /**
+     * Inserts a DoubleLE value at the given offset value.
+     *
+     * @param value { Number } The value to insert.
+     * @param offset { Number } The offset to insert the value at.
+     *
+     * @return this
+     */
+    insertDoubleLE(value: number, offset: number): SmartBuffer;
+    /**
+     * Reads a String from the current read position.
+     *
+     * @param arg1 { Number | String } The number of bytes to read as a String, or the BufferEncoding to use for
+     *             the string (Defaults to instance level encoding).
+     * @param encoding { String } The BufferEncoding to use for the string (Defaults to instance level encoding).
+     *
+     * @return { String }
+     */
+    readString(arg1?: number | BufferEncoding, encoding?: BufferEncoding): string;
+    /**
+     * Inserts a String
+     *
+     * @param value { String } The String value to insert.
+     * @param offset { Number } The offset to insert the string at.
+     * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+     *
+     * @return this
+     */
+    insertString(value: string, offset: number, encoding?: BufferEncoding): SmartBuffer;
+    /**
+     * Writes a String
+     *
+     * @param value { String } The String value to write.
+     * @param arg2 { Number | String } The offset to write the string at, or the BufferEncoding to use.
+     * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+     *
+     * @return this
+     */
+    writeString(value: string, arg2?: number | BufferEncoding, encoding?: BufferEncoding): SmartBuffer;
+    /**
+     * Reads a null-terminated String from the current read position.
+     *
+     * @param encoding { String } The BufferEncoding to use for the string (Defaults to instance level encoding).
+     *
+     * @return { String }
+     */
+    readStringNT(encoding?: BufferEncoding): string;
+    /**
+     * Inserts a null-terminated String.
+     *
+     * @param value { String } The String value to write.
+     * @param arg2 { Number | String } The offset to write the string to, or the BufferEncoding to use.
+     * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+     *
+     * @return this
+     */
+    insertStringNT(value: string, offset: number, encoding?: BufferEncoding): SmartBuffer;
+    /**
+     * Writes a null-terminated String.
+     *
+     * @param value { String } The String value to write.
+     * @param arg2 { Number | String } The offset to write the string to, or the BufferEncoding to use.
+     * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+     *
+     * @return this
+     */
+    writeStringNT(value: string, arg2?: number | BufferEncoding, encoding?: BufferEncoding): SmartBuffer;
+    /**
+     * Reads a Buffer from the internal read position.
+     *
+     * @param length { Number } The length of data to read as a Buffer.
+     *
+     * @return { Buffer }
+     */
+    readBuffer(length?: number): Buffer;
+    /**
+     * Writes a Buffer to the current write position.
+     *
+     * @param value { Buffer } The Buffer to write.
+     * @param offset { Number } The offset to write the Buffer to.
+     *
+     * @return this
+     */
+    insertBuffer(value: Buffer, offset: number): SmartBuffer;
+    /**
+     * Writes a Buffer to the current write position.
+     *
+     * @param value { Buffer } The Buffer to write.
+     * @param offset { Number } The offset to write the Buffer to.
+     *
+     * @return this
+     */
+    writeBuffer(value: Buffer, offset?: number): SmartBuffer;
+    /**
+     * Reads a null-terminated Buffer from the current read poisiton.
+     *
+     * @return { Buffer }
+     */
+    readBufferNT(): Buffer;
+    /**
+     * Inserts a null-terminated Buffer.
+     *
+     * @param value { Buffer } The Buffer to write.
+     * @param offset { Number } The offset to write the Buffer to.
+     *
+     * @return this
+     */
+    insertBufferNT(value: Buffer, offset: number): SmartBuffer;
+    /**
+     * Writes a null-terminated Buffer.
+     *
+     * @param value { Buffer } The Buffer to write.
+     * @param offset { Number } The offset to write the Buffer to.
+     *
+     * @return this
+     */
+    writeBufferNT(value: Buffer, offset?: number): SmartBuffer;
+    /**
+     * Clears the SmartBuffer instance to its original empty state.
+     */
+    clear(): SmartBuffer;
+    /**
+     * Gets the remaining data left to be read from the SmartBuffer instance.
+     *
+     * @return { Number }
+     */
+    remaining(): number;
+    /**
+     * Gets the current read offset value of the SmartBuffer instance.
+     *
+     * @return { Number }
+     */
+    /**
+    * Sets the read offset value of the SmartBuffer instance.
+    *
+    * @param offset { Number } - The offset value to set.
+    */
+    readOffset: number;
+    /**
+     * Gets the current write offset value of the SmartBuffer instance.
+     *
+     * @return { Number }
+     */
+    /**
+    * Sets the write offset value of the SmartBuffer instance.
+    *
+    * @param offset { Number } - The offset value to set.
+    */
+    writeOffset: number;
+    /**
+     * Gets the currently set string encoding of the SmartBuffer instance.
+     *
+     * @return { BufferEncoding } The string Buffer encoding currently set.
+     */
+    /**
+    * Sets the string encoding of the SmartBuffer instance.
+    *
+    * @param encoding { BufferEncoding } The string Buffer encoding to set.
+    */
+    encoding: BufferEncoding;
+    /**
+     * Gets the underlying internal Buffer. (This includes unmanaged data in the Buffer)
+     *
+     * @return { Buffer } The Buffer value.
+     */
+    readonly internalBuffer: Buffer;
+    /**
+     * Gets the value of the internal managed Buffer (Includes managed data only)
+     *
+     * @param { Buffer }
+     */
+    toBuffer(): Buffer;
+    /**
+     * Gets the String value of the internal managed Buffer
+     *
+     * @param encoding { String } The BufferEncoding to display the Buffer as (defaults to instance level encoding).
+     */
+    toString(encoding?: BufferEncoding): string;
+    /**
+     * Destroys the SmartBuffer instance.
+     */
+    destroy(): SmartBuffer;
+    /**
+     * Handles inserting and writing strings.
+     *
+     * @param value { String } The String value to insert.
+     * @param isInsert { Boolean } True if inserting a string, false if writing.
+     * @param arg2 { Number | String } The offset to insert the string at, or the BufferEncoding to use.
+     * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+     */
+    private _handleString;
+    /**
+     * Handles writing or insert of a Buffer.
+     *
+     * @param value { Buffer } The Buffer to write.
+     * @param offset { Number } The offset to write the Buffer to.
+     */
+    private _handleBuffer;
+    /**
+     * Ensures that the internal Buffer is large enough to read data.
+     *
+     * @param length { Number } The length of the data that needs to be read.
+     * @param offset { Number } The offset of the data that needs to be read.
+     */
+    private ensureReadable;
+    /**
+     * Ensures that the internal Buffer is large enough to insert data.
+     *
+     * @param dataLength { Number } The length of the data that needs to be written.
+     * @param offset { Number } The offset of the data to be written.
+     */
+    private ensureInsertable;
+    /**
+     * Ensures that the internal Buffer is large enough to write data.
+     *
+     * @param dataLength { Number } The length of the data that needs to be written.
+     * @param offset { Number } The offset of the data to be written (defaults to writeOffset).
+     */
+    private _ensureWriteable;
+    /**
+     * Ensures that the internal Buffer is large enough to write at least the given amount of data.
+     *
+     * @param minLength { Number } The minimum length of the data needs to be written.
+     */
+    private _ensureCapacity;
+    /**
+     * Reads a numeric number value using the provided function.
+     *
+     * @typeparam T { number | bigint } The type of the value to be read
+     *
+     * @param func { Function(offset: number) => number } The function to read data on the internal Buffer with.
+     * @param byteSize { Number } The number of bytes read.
+     * @param offset { Number } The offset to read from (optional). When this is not provided, the managed readOffset is used instead.
+     *
+     * @returns { T } the number value
+     */
+    private _readNumberValue;
+    /**
+     * Inserts a numeric number value based on the given offset and value.
+     *
+     * @typeparam T { number | bigint } The type of the value to be written
+     *
+     * @param func { Function(offset: T, offset?) => number} The function to write data on the internal Buffer with.
+     * @param byteSize { Number } The number of bytes written.
+     * @param value { T } The number value to write.
+     * @param offset { Number } the offset to write the number at (REQUIRED).
+     *
+     * @returns SmartBuffer this buffer
+     */
+    private _insertNumberValue;
+    /**
+     * Writes a numeric number value based on the given offset and value.
+     *
+     * @typeparam T { number | bigint } The type of the value to be written
+     *
+     * @param func { Function(offset: T, offset?) => number} The function to write data on the internal Buffer with.
+     * @param byteSize { Number } The number of bytes written.
+     * @param value { T } The number value to write.
+     * @param offset { Number } the offset to write the number at (REQUIRED).
+     *
+     * @returns SmartBuffer this buffer
+     */
+    private _writeNumberValue;
+}
+export { SmartBufferOptions, SmartBuffer };
diff --git a/node_modules/smart-buffer/typings/utils.d.ts b/node_modules/smart-buffer/typings/utils.d.ts
new file mode 100644
index 0000000..b32b4d4
--- /dev/null
+++ b/node_modules/smart-buffer/typings/utils.d.ts
@@ -0,0 +1,66 @@
+/// <reference types="node" />
+import { SmartBuffer } from './smartbuffer';
+import { Buffer } from 'buffer';
+/**
+ * Error strings
+ */
+declare const ERRORS: {
+    INVALID_ENCODING: string;
+    INVALID_SMARTBUFFER_SIZE: string;
+    INVALID_SMARTBUFFER_BUFFER: string;
+    INVALID_SMARTBUFFER_OBJECT: string;
+    INVALID_OFFSET: string;
+    INVALID_OFFSET_NON_NUMBER: string;
+    INVALID_LENGTH: string;
+    INVALID_LENGTH_NON_NUMBER: string;
+    INVALID_TARGET_OFFSET: string;
+    INVALID_TARGET_LENGTH: string;
+    INVALID_READ_BEYOND_BOUNDS: string;
+    INVALID_WRITE_BEYOND_BOUNDS: string;
+};
+/**
+ * Checks if a given encoding is a valid Buffer encoding. (Throws an exception if check fails)
+ *
+ * @param { String } encoding The encoding string to check.
+ */
+declare function checkEncoding(encoding: BufferEncoding): void;
+/**
+ * Checks if a given number is a finite integer. (Throws an exception if check fails)
+ *
+ * @param { Number } value The number value to check.
+ */
+declare function isFiniteInteger(value: number): boolean;
+/**
+ * Checks if a length value is valid. (Throws an exception if check fails)
+ *
+ * @param { Number } length The value to check.
+ */
+declare function checkLengthValue(length: any): void;
+/**
+ * Checks if a offset value is valid. (Throws an exception if check fails)
+ *
+ * @param { Number } offset The value to check.
+ */
+declare function checkOffsetValue(offset: any): void;
+/**
+ * Checks if a target offset value is out of bounds. (Throws an exception if check fails)
+ *
+ * @param { Number } offset The offset value to check.
+ * @param { SmartBuffer } buff The SmartBuffer instance to check against.
+ */
+declare function checkTargetOffset(offset: number, buff: SmartBuffer): void;
+interface Buffer {
+    readBigInt64BE(offset?: number): bigint;
+    readBigInt64LE(offset?: number): bigint;
+    readBigUInt64BE(offset?: number): bigint;
+    readBigUInt64LE(offset?: number): bigint;
+    writeBigInt64BE(value: bigint, offset?: number): number;
+    writeBigInt64LE(value: bigint, offset?: number): number;
+    writeBigUInt64BE(value: bigint, offset?: number): number;
+    writeBigUInt64LE(value: bigint, offset?: number): number;
+}
+/**
+ * Throws if Node.js version is too low to support bigint
+ */
+declare function bigIntAndBufferInt64Check(bufferMethod: keyof Buffer): void;
+export { ERRORS, isFiniteInteger, checkEncoding, checkOffsetValue, checkLengthValue, checkTargetOffset, bigIntAndBufferInt64Check };
diff --git a/node_modules/socks-proxy-agent/README.md b/node_modules/socks-proxy-agent/README.md
new file mode 100644
index 0000000..2c44170
--- /dev/null
+++ b/node_modules/socks-proxy-agent/README.md
@@ -0,0 +1,152 @@
+socks-proxy-agent
+================
+### A SOCKS proxy `http.Agent` implementation for HTTP and HTTPS
+[![Build Status](https://github.com/TooTallNate/node-socks-proxy-agent/workflows/Node%20CI/badge.svg)](https://github.com/TooTallNate/node-socks-proxy-agent/actions?workflow=Node+CI)
+
+This module provides an `http.Agent` implementation that connects to a
+specified SOCKS proxy server, and can be used with the built-in `http`
+and `https` modules.
+
+It can also be used in conjunction with the `ws` module to establish a WebSocket
+connection over a SOCKS proxy. See the "Examples" section below.
+
+Installation
+------------
+
+Install with `npm`:
+
+``` bash
+npm install socks-proxy-agent
+```
+
+
+Examples
+--------
+
+#### TypeScript example
+
+```ts
+import https from 'https';
+import { SocksProxyAgent } from 'socks-proxy-agent';
+
+const info = {
+	hostname: 'br41.nordvpn.com',
+	userId: 'your-name@gmail.com',
+	password: 'abcdef12345124'
+};
+const agent = new SocksProxyAgent(info);
+
+https.get('https://ipinfo.io', { agent }, (res) => {
+	console.log(res.headers);
+	res.pipe(process.stdout);
+});
+```
+
+#### `http` module example
+
+```js
+var url = require('url');
+var http = require('http');
+var { SocksProxyAgent } = require('socks-proxy-agent');
+
+// SOCKS proxy to connect to
+var proxy = process.env.socks_proxy || 'socks://127.0.0.1:1080';
+console.log('using proxy server %j', proxy);
+
+// HTTP endpoint for the proxy to connect to
+var endpoint = process.argv[2] || 'http://nodejs.org/api/';
+console.log('attempting to GET %j', endpoint);
+var opts = url.parse(endpoint);
+
+// create an instance of the `SocksProxyAgent` class with the proxy server information
+var agent = new SocksProxyAgent(proxy);
+opts.agent = agent;
+
+http.get(opts, function (res) {
+	console.log('"response" event!', res.headers);
+	res.pipe(process.stdout);
+});
+```
+
+#### `https` module example
+
+```js
+var url = require('url');
+var https = require('https');
+var { SocksProxyAgent } = require('socks-proxy-agent');
+
+// SOCKS proxy to connect to
+var proxy = process.env.socks_proxy || 'socks://127.0.0.1:1080';
+console.log('using proxy server %j', proxy);
+
+// HTTP endpoint for the proxy to connect to
+var endpoint = process.argv[2] || 'https://encrypted.google.com/';
+console.log('attempting to GET %j', endpoint);
+var opts = url.parse(endpoint);
+
+// create an instance of the `SocksProxyAgent` class with the proxy server information
+var agent = new SocksProxyAgent(proxy);
+opts.agent = agent;
+
+https.get(opts, function (res) {
+	console.log('"response" event!', res.headers);
+	res.pipe(process.stdout);
+});
+```
+
+#### `ws` WebSocket connection example
+
+``` js
+var WebSocket = require('ws');
+var { SocksProxyAgent } = require('socks-proxy-agent');
+
+// SOCKS proxy to connect to
+var proxy = process.env.socks_proxy || 'socks://127.0.0.1:1080';
+console.log('using proxy server %j', proxy);
+
+// WebSocket endpoint for the proxy to connect to
+var endpoint = process.argv[2] || 'ws://echo.websocket.org';
+console.log('attempting to connect to WebSocket %j', endpoint);
+
+// create an instance of the `SocksProxyAgent` class with the proxy server information
+var agent = new SocksProxyAgent(proxy);
+
+// initiate the WebSocket connection
+var socket = new WebSocket(endpoint, { agent: agent });
+
+socket.on('open', function () {
+	console.log('"open" event!');
+	socket.send('hello world');
+});
+
+socket.on('message', function (data, flags) {
+	console.log('"message" event! %j %j', data, flags);
+	socket.close();
+});
+```
+
+License
+-------
+
+(The MIT License)
+
+Copyright (c) 2013 Nathan Rajlich &lt;nathan@tootallnate.net&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/socks-proxy-agent/dist/index.d.ts b/node_modules/socks-proxy-agent/dist/index.d.ts
new file mode 100644
index 0000000..20dc42f
--- /dev/null
+++ b/node_modules/socks-proxy-agent/dist/index.d.ts
@@ -0,0 +1,38 @@
+/// <reference types="node" />
+import { SocksProxy } from 'socks';
+import { Agent, ClientRequest, RequestOptions } from 'agent-base';
+import { AgentOptions } from 'agent-base';
+import { Url } from 'url';
+import net from 'net';
+import tls from 'tls';
+interface BaseSocksProxyAgentOptions {
+    /**
+     * hostname is preferred over host
+     *
+     * @deprecated
+     */
+    host?: string | null;
+    port?: string | number | null;
+    username?: string | null;
+    tls?: tls.ConnectionOptions | null;
+}
+interface SocksProxyAgentOptionsExtra {
+    timeout?: number;
+}
+export interface SocksProxyAgentOptions extends AgentOptions, BaseSocksProxyAgentOptions, Partial<Omit<Url & SocksProxy, keyof BaseSocksProxyAgentOptions>> {
+}
+export declare class SocksProxyAgent extends Agent {
+    private readonly shouldLookup;
+    private readonly proxy;
+    private readonly tlsConnectionOptions;
+    timeout: number | null;
+    constructor(input: string | SocksProxyAgentOptions, options?: SocksProxyAgentOptionsExtra);
+    /**
+     * Initiates a SOCKS connection to the specified SOCKS proxy server,
+     * which in turn connects to the specified remote host and port.
+     *
+     * @api protected
+     */
+    callback(req: ClientRequest, opts: RequestOptions): Promise<net.Socket>;
+}
+export {};
diff --git a/node_modules/socks-proxy-agent/dist/index.js b/node_modules/socks-proxy-agent/dist/index.js
new file mode 100644
index 0000000..f615034
--- /dev/null
+++ b/node_modules/socks-proxy-agent/dist/index.js
@@ -0,0 +1,197 @@
+"use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SocksProxyAgent = void 0;
+const socks_1 = require("socks");
+const agent_base_1 = require("agent-base");
+const debug_1 = __importDefault(require("debug"));
+const dns_1 = __importDefault(require("dns"));
+const tls_1 = __importDefault(require("tls"));
+const debug = (0, debug_1.default)('socks-proxy-agent');
+function parseSocksProxy(opts) {
+    var _a;
+    let port = 0;
+    let lookup = false;
+    let type = 5;
+    const host = opts.hostname || opts.host;
+    if (host == null) {
+        throw new TypeError('No "hostname"');
+    }
+    if (typeof opts.port === 'number') {
+        port = opts.port;
+    }
+    else if (typeof opts.port === 'string') {
+        port = parseInt(opts.port, 10);
+    }
+    // From RFC 1928, Section 3: https://tools.ietf.org/html/rfc1928#section-3
+    // "The SOCKS service is conventionally located on TCP port 1080"
+    if (port == null) {
+        port = 1080;
+    }
+    // figure out if we want socks v4 or v5, based on the "protocol" used.
+    // Defaults to 5.
+    if (opts.protocol != null) {
+        switch (opts.protocol.replace(':', '')) {
+            case 'socks4':
+                lookup = true;
+            // pass through
+            case 'socks4a':
+                type = 4;
+                break;
+            case 'socks5':
+                lookup = true;
+            // pass through
+            case 'socks': // no version specified, default to 5h
+            case 'socks5h':
+                type = 5;
+                break;
+            default:
+                throw new TypeError(`A "socks" protocol must be specified! Got: ${String(opts.protocol)}`);
+        }
+    }
+    if (typeof opts.type !== 'undefined') {
+        if (opts.type === 4 || opts.type === 5) {
+            type = opts.type;
+        }
+        else {
+            throw new TypeError(`"type" must be 4 or 5, got: ${String(opts.type)}`);
+        }
+    }
+    const proxy = {
+        host,
+        port,
+        type
+    };
+    let userId = (_a = opts.userId) !== null && _a !== void 0 ? _a : opts.username;
+    let password = opts.password;
+    if (opts.auth != null) {
+        const auth = opts.auth.split(':');
+        userId = auth[0];
+        password = auth[1];
+    }
+    if (userId != null) {
+        Object.defineProperty(proxy, 'userId', {
+            value: userId,
+            enumerable: false
+        });
+    }
+    if (password != null) {
+        Object.defineProperty(proxy, 'password', {
+            value: password,
+            enumerable: false
+        });
+    }
+    return { lookup, proxy };
+}
+const normalizeProxyOptions = (input) => {
+    let proxyOptions;
+    if (typeof input === 'string') {
+        proxyOptions = new URL(input);
+    }
+    else {
+        proxyOptions = input;
+    }
+    if (proxyOptions == null) {
+        throw new TypeError('a SOCKS proxy server `hostname` and `port` must be specified!');
+    }
+    return proxyOptions;
+};
+class SocksProxyAgent extends agent_base_1.Agent {
+    constructor(input, options) {
+        var _a;
+        const proxyOptions = normalizeProxyOptions(input);
+        super(proxyOptions);
+        const parsedProxy = parseSocksProxy(proxyOptions);
+        this.shouldLookup = parsedProxy.lookup;
+        this.proxy = parsedProxy.proxy;
+        this.tlsConnectionOptions = proxyOptions.tls != null ? proxyOptions.tls : {};
+        this.timeout = (_a = options === null || options === void 0 ? void 0 : options.timeout) !== null && _a !== void 0 ? _a : null;
+    }
+    /**
+     * Initiates a SOCKS connection to the specified SOCKS proxy server,
+     * which in turn connects to the specified remote host and port.
+     *
+     * @api protected
+     */
+    callback(req, opts) {
+        var _a;
+        return __awaiter(this, void 0, void 0, function* () {
+            const { shouldLookup, proxy, timeout } = this;
+            let { host, port, lookup: lookupCallback } = opts;
+            if (host == null) {
+                throw new Error('No `host` defined!');
+            }
+            if (shouldLookup) {
+                // Client-side DNS resolution for "4" and "5" socks proxy versions.
+                host = yield new Promise((resolve, reject) => {
+                    // Use the request's custom lookup, if one was configured:
+                    const lookupFn = lookupCallback !== null && lookupCallback !== void 0 ? lookupCallback : dns_1.default.lookup;
+                    lookupFn(host, {}, (err, res) => {
+                        if (err) {
+                            reject(err);
+                        }
+                        else {
+                            resolve(res);
+                        }
+                    });
+                });
+            }
+            const socksOpts = {
+                proxy,
+                destination: { host, port },
+                command: 'connect',
+                timeout: timeout !== null && timeout !== void 0 ? timeout : undefined
+            };
+            const cleanup = (tlsSocket) => {
+                req.destroy();
+                socket.destroy();
+                if (tlsSocket)
+                    tlsSocket.destroy();
+            };
+            debug('Creating socks proxy connection: %o', socksOpts);
+            const { socket } = yield socks_1.SocksClient.createConnection(socksOpts);
+            debug('Successfully created socks proxy connection');
+            if (timeout !== null) {
+                socket.setTimeout(timeout);
+                socket.on('timeout', () => cleanup());
+            }
+            if (opts.secureEndpoint) {
+                // The proxy is connecting to a TLS server, so upgrade
+                // this socket connection to a TLS connection.
+                debug('Upgrading socket connection to TLS');
+                const servername = (_a = opts.servername) !== null && _a !== void 0 ? _a : opts.host;
+                const tlsSocket = tls_1.default.connect(Object.assign(Object.assign(Object.assign({}, omit(opts, 'host', 'hostname', 'path', 'port')), { socket,
+                    servername }), this.tlsConnectionOptions));
+                tlsSocket.once('error', (error) => {
+                    debug('socket TLS error', error.message);
+                    cleanup(tlsSocket);
+                });
+                return tlsSocket;
+            }
+            return socket;
+        });
+    }
+}
+exports.SocksProxyAgent = SocksProxyAgent;
+function omit(obj, ...keys) {
+    const ret = {};
+    let key;
+    for (key in obj) {
+        if (!keys.includes(key)) {
+            ret[key] = obj[key];
+        }
+    }
+    return ret;
+}
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/node_modules/socks-proxy-agent/dist/index.js.map b/node_modules/socks-proxy-agent/dist/index.js.map
new file mode 100644
index 0000000..96d8fab
--- /dev/null
+++ b/node_modules/socks-proxy-agent/dist/index.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/node_modules/socks-proxy-agent/package.json b/node_modules/socks-proxy-agent/package.json
new file mode 100644
index 0000000..e9b655a
--- /dev/null
+++ b/node_modules/socks-proxy-agent/package.json
@@ -0,0 +1,181 @@
+{
+  "name": "socks-proxy-agent",
+  "description": "A SOCKS proxy `http.Agent` implementation for HTTP and HTTPS",
+  "homepage": "https://github.com/TooTallNate/node-socks-proxy-agent#readme",
+  "version": "6.2.1",
+  "main": "dist/index.js",
+  "author": {
+    "email": "nathan@tootallnate.net",
+    "name": "Nathan Rajlich",
+    "url": "http://n8.io/"
+  },
+  "contributors": [
+    {
+      "name": "Kiko Beats",
+      "email": "josefrancisco.verdu@gmail.com"
+    },
+    {
+      "name": "Josh Glazebrook",
+      "email": "josh@joshglazebrook.com"
+    },
+    {
+      "name": "talmobi",
+      "email": "talmobi@users.noreply.github.com"
+    },
+    {
+      "name": "Indospace.io",
+      "email": "justin@indospace.io"
+    },
+    {
+      "name": "Kilian von Pflugk",
+      "email": "github@jumoog.io"
+    },
+    {
+      "name": "Kyle",
+      "email": "admin@hk1229.cn"
+    },
+    {
+      "name": "Matheus Fernandes",
+      "email": "matheus.frndes@gmail.com"
+    },
+    {
+      "name": "Ricky Miller",
+      "email": "richardkazuomiller@gmail.com"
+    },
+    {
+      "name": "Shantanu Sharma",
+      "email": "shantanu34@outlook.com"
+    },
+    {
+      "name": "Tim Perry",
+      "email": "pimterry@gmail.com"
+    },
+    {
+      "name": "Vadim Baryshev",
+      "email": "vadimbaryshev@gmail.com"
+    },
+    {
+      "name": "jigu",
+      "email": "luo1257857309@gmail.com"
+    },
+    {
+      "name": "Alba Mendez",
+      "email": "me@jmendeth.com"
+    },
+    {
+      "name": "Дмитрий Гуденков",
+      "email": "Dimangud@rambler.ru"
+    },
+    {
+      "name": "Andrei Bitca",
+      "email": "63638922+andrei-bitca-dc@users.noreply.github.com"
+    },
+    {
+      "name": "Andrew Casey",
+      "email": "amcasey@users.noreply.github.com"
+    },
+    {
+      "name": "Brandon Ros",
+      "email": "brandonros1@gmail.com"
+    },
+    {
+      "name": "Dang Duy Thanh",
+      "email": "thanhdd.it@gmail.com"
+    },
+    {
+      "name": "Dimitar Nestorov",
+      "email": "8790386+dimitarnestorov@users.noreply.github.com"
+    }
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/TooTallNate/node-socks-proxy-agent.git"
+  },
+  "bugs": {
+    "url": "https://github.com/TooTallNate/node-socks-proxy-agent/issues"
+  },
+  "keywords": [
+    "agent",
+    "http",
+    "https",
+    "proxy",
+    "socks",
+    "socks4",
+    "socks4a",
+    "socks5",
+    "socks5h"
+  ],
+  "dependencies": {
+    "agent-base": "^6.0.2",
+    "debug": "^4.3.3",
+    "socks": "^2.6.2"
+  },
+  "devDependencies": {
+    "@commitlint/cli": "latest",
+    "@commitlint/config-conventional": "latest",
+    "@types/debug": "latest",
+    "@types/node": "latest",
+    "cacheable-lookup": "^6.0.4",
+    "conventional-github-releaser": "latest",
+    "dns2": "latest",
+    "finepack": "latest",
+    "git-authors-cli": "latest",
+    "mocha": "9",
+    "nano-staged": "latest",
+    "npm-check-updates": "latest",
+    "prettier-standard": "latest",
+    "raw-body": "latest",
+    "rimraf": "latest",
+    "simple-git-hooks": "latest",
+    "socksv5": "github:TooTallNate/socksv5#fix/dstSock-close-event",
+    "standard": "latest",
+    "standard-markdown": "latest",
+    "standard-version": "latest",
+    "ts-standard": "latest",
+    "typescript": "latest"
+  },
+  "engines": {
+    "node": ">= 10"
+  },
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "build": "tsc",
+    "clean": "rimraf node_modules",
+    "contributors": "(git-authors-cli && finepack && git add package.json && git commit -m 'build: contributors' --no-verify) || true",
+    "lint": "ts-standard",
+    "postrelease": "npm run release:tags && npm run release:github && (ci-publish || npm publish --access=public)",
+    "prebuild": "rimraf dist",
+    "prepublishOnly": "npm run build",
+    "prerelease": "npm run update:check && npm run contributors",
+    "release": "standard-version -a",
+    "release:github": "conventional-github-releaser -p angular",
+    "release:tags": "git push --follow-tags origin HEAD:master",
+    "test": "mocha --reporter spec",
+    "update": "ncu -u",
+    "update:check": "ncu -- --error-level 2"
+  },
+  "license": "MIT",
+  "commitlint": {
+    "extends": [
+      "@commitlint/config-conventional"
+    ]
+  },
+  "nano-staged": {
+    "*.js": [
+      "prettier-standard"
+    ],
+    "*.md": [
+      "standard-markdown"
+    ],
+    "package.json": [
+      "finepack"
+    ]
+  },
+  "simple-git-hooks": {
+    "commit-msg": "npx commitlint --edit",
+    "pre-commit": "npx nano-staged"
+  },
+  "typings": "dist/index.d.ts"
+}
diff --git a/node_modules/socks/.eslintrc.cjs b/node_modules/socks/.eslintrc.cjs
new file mode 100644
index 0000000..cc5d089
--- /dev/null
+++ b/node_modules/socks/.eslintrc.cjs
@@ -0,0 +1,11 @@
+module.exports = {
+  root: true,
+  parser: '@typescript-eslint/parser',
+  plugins: [
+    '@typescript-eslint',
+  ],
+  extends: [
+    'eslint:recommended',
+    'plugin:@typescript-eslint/recommended',
+  ],
+};
\ No newline at end of file
diff --git a/node_modules/socks/.prettierrc.yaml b/node_modules/socks/.prettierrc.yaml
new file mode 100644
index 0000000..d7b7335
--- /dev/null
+++ b/node_modules/socks/.prettierrc.yaml
@@ -0,0 +1,7 @@
+parser: typescript
+printWidth: 80
+tabWidth: 2
+singleQuote: true
+trailingComma: all
+arrowParens: always
+bracketSpacing: false
\ No newline at end of file
diff --git a/node_modules/socks/LICENSE b/node_modules/socks/LICENSE
new file mode 100644
index 0000000..b2442a9
--- /dev/null
+++ b/node_modules/socks/LICENSE
@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Josh Glazebrook
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/socks/README.md b/node_modules/socks/README.md
new file mode 100644
index 0000000..b796220
--- /dev/null
+++ b/node_modules/socks/README.md
@@ -0,0 +1,686 @@
+# socks  [![Build Status](https://travis-ci.org/JoshGlazebrook/socks.svg?branch=master)](https://travis-ci.org/JoshGlazebrook/socks)  [![Coverage Status](https://coveralls.io/repos/github/JoshGlazebrook/socks/badge.svg?branch=master)](https://coveralls.io/github/JoshGlazebrook/socks?branch=v2)
+
+Fully featured SOCKS proxy client supporting SOCKSv4, SOCKSv4a, and SOCKSv5. Includes Bind and Associate functionality.
+
+> Looking for Node.js agent? Check [node-socks-proxy-agent](https://github.com/TooTallNate/node-socks-proxy-agent).
+
+### Features
+
+* Supports SOCKS v4, v4a, v5, and v5h protocols.
+* Supports the CONNECT, BIND, and ASSOCIATE commands.
+* Supports callbacks, promises, and events for proxy connection creation async flow control.
+* Supports proxy chaining (CONNECT only).
+* Supports user/password authentication.
+* Supports custom authentication.
+* Built in UDP frame creation & parse functions.
+* Created with TypeScript, type definitions are provided.
+
+### Requirements
+
+* Node.js v10.0+  (Please use [v1](https://github.com/JoshGlazebrook/socks/tree/82d83923ad960693d8b774cafe17443ded7ed584) for older versions of Node.js)
+
+### Looking for v1?
+* Docs for v1 are available [here](https://github.com/JoshGlazebrook/socks/tree/82d83923ad960693d8b774cafe17443ded7ed584)
+
+## Installation
+
+`yarn add socks`
+
+or
+
+`npm install --save socks`
+
+## Usage
+
+```typescript
+// TypeScript
+import { SocksClient, SocksClientOptions, SocksClientChainOptions } from 'socks';
+
+// ES6 JavaScript
+import { SocksClient } from 'socks';
+
+// Legacy JavaScript
+const SocksClient = require('socks').SocksClient;
+```
+
+## Quick Start Example
+
+Connect to github.com (192.30.253.113) on port 80, using a SOCKS proxy.
+
+```javascript
+const options = {
+  proxy: {
+    host: '159.203.75.200', // ipv4 or ipv6 or hostname
+    port: 1080,
+    type: 5 // Proxy version (4 or 5)
+  },
+
+  command: 'connect', // SOCKS command (createConnection factory function only supports the connect command)
+
+  destination: {
+    host: '192.30.253.113', // github.com (hostname lookups are supported with SOCKS v4a and 5)
+    port: 80
+  }
+};
+
+// Async/Await
+try {
+  const info = await SocksClient.createConnection(options);
+
+  console.log(info.socket);
+  // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy server)
+} catch (err) {
+  // Handle errors
+}
+
+// Promises
+SocksClient.createConnection(options)
+.then(info => {
+  console.log(info.socket);
+  // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy server)
+})
+.catch(err => {
+  // Handle errors
+});
+
+// Callbacks
+SocksClient.createConnection(options, (err, info) => {
+  if (!err) {
+    console.log(info.socket);
+    // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy server)
+  } else {
+    // Handle errors
+  }
+});
+```
+
+## Chaining Proxies
+
+**Note:** Chaining is only supported when using the SOCKS connect command, and chaining can only be done through the special factory chaining function.
+
+This example makes a proxy chain through two SOCKS proxies to ip-api.com. Once the connection to the destination is established it sends an HTTP request to get a JSON response that returns ip info for the requesting ip.
+
+```javascript
+const options = {
+  destination: {
+    host: 'ip-api.com', // host names are supported with SOCKS v4a and SOCKS v5.
+    port: 80
+  },
+  command: 'connect', // Only the connect command is supported when chaining proxies.
+  proxies: [ // The chain order is the order in the proxies array, meaning the last proxy will establish a connection to the destination.
+    {
+      host: '159.203.75.235', // ipv4, ipv6, or hostname
+      port: 1081,
+      type: 5
+    },
+    {
+      host: '104.131.124.203', // ipv4, ipv6, or hostname
+      port: 1081,
+      type: 5
+    }
+  ]
+}
+
+// Async/Await
+try {
+  const info = await SocksClient.createConnectionChain(options);
+
+  console.log(info.socket);
+  // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy servers)
+
+  console.log(info.socket.remoteAddress) // The remote address of the returned socket is the first proxy in the chain.
+  // 159.203.75.235
+
+  info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
+  info.socket.on('data', (data) => {
+    console.log(data.toString()); // ip-api.com sees that the last proxy in the chain (104.131.124.203) is connected to it.
+    /*
+      HTTP/1.1 200 OK
+      Access-Control-Allow-Origin: *
+      Content-Type: application/json; charset=utf-8
+      Date: Sun, 24 Dec 2017 03:47:51 GMT
+      Content-Length: 300
+
+      {
+        "as":"AS14061 Digital Ocean, Inc.",
+        "city":"Clifton",
+        "country":"United States",
+        "countryCode":"US",
+        "isp":"Digital Ocean",
+        "lat":40.8326,
+        "lon":-74.1307,
+        "org":"Digital Ocean",
+        "query":"104.131.124.203",
+        "region":"NJ",
+        "regionName":"New Jersey",
+        "status":"success",
+        "timezone":"America/New_York",
+        "zip":"07014"
+      }
+    */
+  });
+} catch (err) {
+  // Handle errors
+}
+
+// Promises
+SocksClient.createConnectionChain(options)
+.then(info => {
+  console.log(info.socket);
+  // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy server)
+
+  console.log(info.socket.remoteAddress) // The remote address of the returned socket is the first proxy in the chain.
+  // 159.203.75.235
+
+  info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
+  info.socket.on('data', (data) => {
+    console.log(data.toString()); // ip-api.com sees that the last proxy in the chain (104.131.124.203) is connected to it.
+    /*
+      HTTP/1.1 200 OK
+      Access-Control-Allow-Origin: *
+      Content-Type: application/json; charset=utf-8
+      Date: Sun, 24 Dec 2017 03:47:51 GMT
+      Content-Length: 300
+
+      {
+        "as":"AS14061 Digital Ocean, Inc.",
+        "city":"Clifton",
+        "country":"United States",
+        "countryCode":"US",
+        "isp":"Digital Ocean",
+        "lat":40.8326,
+        "lon":-74.1307,
+        "org":"Digital Ocean",
+        "query":"104.131.124.203",
+        "region":"NJ",
+        "regionName":"New Jersey",
+        "status":"success",
+        "timezone":"America/New_York",
+        "zip":"07014"
+      }
+    */
+  });
+})
+.catch(err => {
+  // Handle errors
+});
+
+// Callbacks
+SocksClient.createConnectionChain(options, (err, info) => {
+  if (!err) {
+    console.log(info.socket);
+    // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy server)
+
+    console.log(info.socket.remoteAddress) // The remote address of the returned socket is the first proxy in the chain.
+  // 159.203.75.235
+
+  info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
+  info.socket.on('data', (data) => {
+    console.log(data.toString()); // ip-api.com sees that the last proxy in the chain (104.131.124.203) is connected to it.
+    /*
+      HTTP/1.1 200 OK
+      Access-Control-Allow-Origin: *
+      Content-Type: application/json; charset=utf-8
+      Date: Sun, 24 Dec 2017 03:47:51 GMT
+      Content-Length: 300
+
+      {
+        "as":"AS14061 Digital Ocean, Inc.",
+        "city":"Clifton",
+        "country":"United States",
+        "countryCode":"US",
+        "isp":"Digital Ocean",
+        "lat":40.8326,
+        "lon":-74.1307,
+        "org":"Digital Ocean",
+        "query":"104.131.124.203",
+        "region":"NJ",
+        "regionName":"New Jersey",
+        "status":"success",
+        "timezone":"America/New_York",
+        "zip":"07014"
+      }
+    */
+  });
+  } else {
+    // Handle errors
+  }
+});
+```
+
+## Bind Example (TCP Relay)
+
+When the bind command is sent to a SOCKS v4/v5 proxy server, the proxy server starts listening on a new TCP port and the proxy relays then remote host information back to the client. When another remote client connects to the proxy server on this port the SOCKS proxy sends a notification that an incoming connection has been accepted to the initial client and a full duplex stream is now established to the initial client and the client that connected to that special port.
+
+```javascript
+const options = {
+  proxy: {
+    host: '159.203.75.235', // ipv4, ipv6, or hostname
+    port: 1081,
+    type: 5
+  },
+
+  command: 'bind',
+
+  // When using BIND, the destination should be the remote client that is expected to connect to the SOCKS proxy. Using 0.0.0.0 makes the Proxy accept any incoming connection on that port.
+  destination: {
+    host: '0.0.0.0',
+    port: 0
+  }
+};
+
+// Creates a new SocksClient instance.
+const client = new SocksClient(options);
+
+// When the SOCKS proxy has bound a new port and started listening, this event is fired.
+client.on('bound', info => {
+  console.log(info.remoteHost);
+  /*
+  {
+    host: "159.203.75.235",
+    port: 57362
+  }
+  */
+});
+
+// When a client connects to the newly bound port on the SOCKS proxy, this event is fired.
+client.on('established', info => {
+  // info.remoteHost is the remote address of the client that connected to the SOCKS proxy.
+  console.log(info.remoteHost);
+  /*
+    host: 67.171.34.23,
+    port: 49823
+  */
+
+  console.log(info.socket);
+  // <Socket ...>  (This is a raw net.Socket that is a connection between the initial client and the remote client that connected to the proxy)
+
+  // Handle received data...
+  info.socket.on('data', data => {
+    console.log('recv', data);
+  });
+});
+
+// An error occurred trying to establish this SOCKS connection.
+client.on('error', err => {
+  console.error(err);
+});
+
+// Start connection to proxy
+client.connect();
+```
+
+## Associate Example (UDP Relay)
+
+When the associate command is sent to a SOCKS v5 proxy server, it sets up a UDP relay that allows the client to send UDP packets to a remote host through the proxy server, and also receive UDP packet responses back through the proxy server.
+
+```javascript
+const options = {
+  proxy: {
+    host: '159.203.75.235', // ipv4, ipv6, or hostname
+    port: 1081,
+    type: 5
+  },
+
+  command: 'associate',
+
+  // When using associate, the destination should be the remote client that is expected to send UDP packets to the proxy server to be forwarded. This should be your local ip, or optionally the wildcard address (0.0.0.0)  UDP Client <-> Proxy <-> UDP Client
+  destination: {
+    host: '0.0.0.0',
+    port: 0
+  }
+};
+
+// Create a local UDP socket for sending packets to the proxy.
+const udpSocket = dgram.createSocket('udp4');
+udpSocket.bind();
+
+// Listen for incoming UDP packets from the proxy server.
+udpSocket.on('message', (message, rinfo) => {
+  console.log(SocksClient.parseUDPFrame(message));
+  /*
+  { frameNumber: 0,
+    remoteHost: { host: '165.227.108.231', port: 4444 }, // The remote host that replied with a UDP packet
+    data: <Buffer 74 65 73 74 0a> // The data
+  }
+  */
+});
+
+let client = new SocksClient(associateOptions);
+
+// When the UDP relay is established, this event is fired and includes the UDP relay port to send data to on the proxy server.
+client.on('established', info => {
+  console.log(info.remoteHost);
+  /*
+    {
+      host: '159.203.75.235',
+      port: 44711
+    }
+  */
+
+  // Send 'hello' to 165.227.108.231:4444
+  const packet = SocksClient.createUDPFrame({
+    remoteHost: { host: '165.227.108.231', port: 4444 },
+    data: Buffer.from(line)
+  });
+  udpSocket.send(packet, info.remoteHost.port, info.remoteHost.host);
+});
+
+// Start connection
+client.connect();
+```
+
+**Note:** The associate TCP connection to the proxy must remain open for the UDP relay to work.
+
+## Additional Examples
+
+[Documentation](docs/index.md)
+
+
+## Migrating from v1
+
+Looking for a guide to migrate from v1? Look [here](docs/migratingFromV1.md)
+
+## Api Reference:
+
+**Note:** socks includes full TypeScript definitions. These can even be used without using TypeScript as most IDEs (such as VS Code) will use these type definition files for auto completion intellisense even in JavaScript files.
+
+* Class: SocksClient
+  * [new SocksClient(options[, callback])](#new-socksclientoptions)
+  * [Class Method: SocksClient.createConnection(options[, callback])](#class-method-socksclientcreateconnectionoptions-callback)
+  * [Class Method: SocksClient.createConnectionChain(options[, callback])](#class-method-socksclientcreateconnectionchainoptions-callback)
+  * [Class Method: SocksClient.createUDPFrame(options)](#class-method-socksclientcreateudpframedetails)
+  * [Class Method: SocksClient.parseUDPFrame(data)](#class-method-socksclientparseudpframedata)
+  * [Event: 'error'](#event-error)
+  * [Event: 'bound'](#event-bound)
+  * [Event: 'established'](#event-established)
+  * [client.connect()](#clientconnect)
+  * [client.socksClientOptions](#clientconnect)
+
+### SocksClient
+
+SocksClient establishes SOCKS proxy connections to remote destination hosts. These proxy connections are fully transparent to the server and once established act as full duplex streams. SOCKS v4, v4a, v5, and v5h are supported, as well as the connect, bind, and associate commands.
+
+SocksClient supports creating connections using callbacks, promises, and async/await flow control using two static factory functions createConnection and createConnectionChain. It also internally extends EventEmitter which results in allowing event handling based async flow control.
+
+**SOCKS Compatibility Table**
+
+Note: When using 4a please specify type: 4, and when using 5h please specify type 5.
+
+| Socks Version | TCP | UDP | IPv4 | IPv6 | Hostname |
+| --- | :---: | :---: | :---: | :---: | :---: |
+| SOCKS v4 | ✅ | ❌ | ✅ | ❌ | ❌ |
+| SOCKS v4a | ✅ | ❌ | ✅ | ❌ | ✅ |
+| SOCKS v5 (includes v5h) | ✅ | ✅ | ✅ | ✅ | ✅ |
+
+### new SocksClient(options)
+
+* ```options``` {SocksClientOptions} - An object describing the SOCKS proxy to use, the command to send and establish, and the destination host to connect to.
+
+### SocksClientOptions
+
+```typescript
+{
+  proxy: {
+    host: '159.203.75.200', // ipv4, ipv6, or hostname
+    port: 1080,
+    type: 5, // Proxy version (4 or 5). For v4a use 4, for v5h use 5.
+
+    // Optional fields
+    userId: 'some username', // Used for SOCKS4 userId auth, and SOCKS5 user/pass auth in conjunction with password.
+    password: 'some password', // Used in conjunction with userId for user/pass auth for SOCKS5 proxies.
+    custom_auth_method: 0x80,  // If using a custom auth method, specify the type here. If this is set, ALL other custom_auth_*** options must be set as well.
+    custom_auth_request_handler: async () =>. {
+      // This will be called when it's time to send the custom auth handshake. You must return a Buffer containing the data to send as your authentication.
+      return Buffer.from([0x01,0x02,0x03]);
+    },
+    // This is the expected size (bytes) of the custom auth response from the proxy server.
+    custom_auth_response_size: 2,
+    // This is called when the auth response is received. The received packet is passed in as a Buffer, and you must return a boolean indicating the response from the server said your custom auth was successful or failed.
+    custom_auth_response_handler: async (data) => {
+      return data[1] === 0x00;
+    }
+  },
+
+  command: 'connect', // connect, bind, associate
+
+  destination: {
+    host: '192.30.253.113', // ipv4, ipv6, hostname. Hostnames work with v4a and v5.
+    port: 80
+  },
+
+  // Optional fields
+  timeout: 30000, // How long to wait to establish a proxy connection. (defaults to 30 seconds)
+
+  set_tcp_nodelay: true // If true, will turn on the underlying sockets TCP_NODELAY option.
+}
+```
+
+### Class Method: SocksClient.createConnection(options[, callback])
+* ```options``` { SocksClientOptions } - An object describing the SOCKS proxy to use, the command to send and establish, and the destination host to connect to.
+* ```callback``` { Function } - Optional callback function that is called when the proxy connection is established, or an error occurs.
+* ```returns``` { Promise } - A Promise is returned that is resolved when the proxy connection is established, or rejected when an error occurs.
+
+Creates a new proxy connection through the given proxy to the given destination host. This factory function supports callbacks and promises for async flow control.
+
+**Note:** If a callback function is provided, the promise will always resolve regardless of an error occurring. Please be sure to exclusively use either promises or callbacks when using this factory function.
+
+```typescript
+const options = {
+  proxy: {
+    host: '159.203.75.200', // ipv4, ipv6, or hostname
+    port: 1080,
+    type: 5 // Proxy version (4 or 5)
+  },
+
+  command: 'connect', // connect, bind, associate
+
+  destination: {
+    host: '192.30.253.113', // ipv4, ipv6, or hostname
+    port: 80
+  }
+}
+
+// Await/Async (uses a Promise)
+try {
+  const info = await SocksClient.createConnection(options);
+  console.log(info);
+  /*
+  {
+    socket: <Socket ...>,  // Raw net.Socket
+  }
+  */
+  / <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy server)
+
+} catch (err) {
+  // Handle error...
+}
+
+// Promise
+SocksClient.createConnection(options)
+.then(info => {
+  console.log(info);
+  /*
+  {
+    socket: <Socket ...>,  // Raw net.Socket
+  }
+  */
+})
+.catch(err => {
+  // Handle error...
+});
+
+// Callback
+SocksClient.createConnection(options, (err, info) => {
+  if (!err) {
+    console.log(info);
+  /*
+  {
+    socket: <Socket ...>,  // Raw net.Socket
+  }
+  */
+  } else {
+    // Handle error...
+  }
+});
+```
+
+### Class Method: SocksClient.createConnectionChain(options[, callback])
+* ```options``` { SocksClientChainOptions } - An object describing a list of SOCKS proxies to use, the command to send and establish, and the destination host to connect to.
+* ```callback``` { Function } - Optional callback function that is called when the proxy connection chain is established, or an error occurs.
+* ```returns``` { Promise } - A Promise is returned that is resolved when the proxy connection chain is established, or rejected when an error occurs.
+
+Creates a new proxy connection chain through a list of at least two SOCKS proxies to the given destination host. This factory method supports callbacks and promises for async flow control.
+
+**Note:** If a callback function is provided, the promise will always resolve regardless of an error occurring. Please be sure to exclusively use either promises or callbacks when using this factory function.
+
+**Note:** At least two proxies must be provided for the chain to be established.
+
+```typescript
+const options = {
+  proxies: [ // The chain order is the order in the proxies array, meaning the last proxy will establish a connection to the destination.
+    {
+      host: '159.203.75.235', // ipv4, ipv6, or hostname
+      port: 1081,
+      type: 5
+    },
+    {
+      host: '104.131.124.203', // ipv4, ipv6, or hostname
+      port: 1081,
+      type: 5
+    }
+  ]
+
+  command: 'connect', // Only connect is supported in chaining mode.
+
+  destination: {
+    host: '192.30.253.113', // ipv4, ipv6, hostname
+    port: 80
+  }
+}
+```
+
+### Class Method: SocksClient.createUDPFrame(details)
+* ```details``` { SocksUDPFrameDetails } - An object containing the remote host, frame number, and frame data to use when creating a SOCKS UDP frame packet.
+* ```returns``` { Buffer } - A Buffer containing all of the UDP frame data.
+
+Creates a SOCKS UDP frame relay packet that is sent and received via a SOCKS proxy when using the associate command for UDP packet forwarding.
+
+**SocksUDPFrameDetails**
+
+```typescript
+{
+  frameNumber: 0, // The frame number (used for breaking up larger packets)
+
+  remoteHost: { // The remote host to have the proxy send data to, or the remote host that send this data.
+    host: '1.2.3.4',
+    port: 1234
+  },
+
+  data: <Buffer 01 02 03 04...> // A Buffer instance of data to include in the packet (actual data sent to the remote host)
+}
+interface SocksUDPFrameDetails {
+  // The frame number of the packet.
+  frameNumber?: number;
+
+  // The remote host.
+  remoteHost: SocksRemoteHost;
+
+  // The packet data.
+  data: Buffer;
+}
+```
+
+### Class Method: SocksClient.parseUDPFrame(data)
+* ```data``` { Buffer } - A Buffer instance containing SOCKS UDP frame data to parse.
+* ```returns``` { SocksUDPFrameDetails } - An object containing the remote host, frame number, and frame data of the SOCKS UDP frame.
+
+```typescript
+const frame = SocksClient.parseUDPFrame(data);
+console.log(frame);
+/*
+{
+  frameNumber: 0,
+  remoteHost: {
+    host: '1.2.3.4',
+    port: 1234
+  },
+  data: <Buffer 01 02 03 04 ...>
+}
+*/
+```
+
+Parses a Buffer instance and returns the parsed SocksUDPFrameDetails object.
+
+## Event: 'error'
+* ```err``` { SocksClientError } - An Error object containing an error message and the original SocksClientOptions.
+
+This event is emitted if an error occurs when trying to establish the proxy connection.
+
+## Event: 'bound'
+* ```info``` { SocksClientBoundEvent } An object containing a Socket and SocksRemoteHost info.
+
+This event is emitted when using the BIND command on a remote SOCKS proxy server. This event indicates the proxy server is now listening for incoming connections on a specified port.
+
+**SocksClientBoundEvent**
+```typescript
+{
+  socket: net.Socket, // The underlying raw Socket
+  remoteHost: {
+    host: '1.2.3.4', // The remote host that is listening (usually the proxy itself)
+    port: 4444 // The remote port the proxy is listening on for incoming connections (when using BIND).
+  }
+}
+```
+
+## Event: 'established'
+* ```info``` { SocksClientEstablishedEvent } An object containing a Socket and SocksRemoteHost info.
+
+This event is emitted when the following conditions are met:
+1. When using the CONNECT command, and a proxy connection has been established to the remote host.
+2. When using the BIND command, and an incoming connection has been accepted by the proxy and a TCP relay has been established.
+3. When using the ASSOCIATE command, and a UDP relay has been established.
+
+When using BIND, 'bound' is first emitted to indicate the SOCKS server is waiting for an incoming connection, and provides the remote port the SOCKS server is listening on.
+
+When using ASSOCIATE, 'established' is emitted with the remote UDP port the SOCKS server is accepting UDP frame packets on.
+
+**SocksClientEstablishedEvent**
+```typescript
+{
+  socket: net.Socket, // The underlying raw Socket
+  remoteHost: {
+    host: '1.2.3.4', // The remote host that is listening (usually the proxy itself)
+    port: 52738 // The remote port the proxy is listening on for incoming connections (when using BIND).
+  }
+}
+```
+
+## client.connect()
+
+Starts connecting to the remote SOCKS proxy server to establish a proxy connection to the destination host.
+
+## client.socksClientOptions
+* ```returns``` { SocksClientOptions } The options that were passed to the SocksClient.
+
+Gets the options that were passed to the SocksClient when it was created.
+
+
+**SocksClientError**
+```typescript
+{ // Subclassed from Error.
+  message: 'An error has occurred',
+  options: {
+    // SocksClientOptions
+  }
+}
+```
+
+# Further Reading:
+
+Please read the SOCKS 5 specifications for more information on how to use BIND and Associate.
+http://www.ietf.org/rfc/rfc1928.txt
+
+# License
+
+This work is licensed under the [MIT license](http://en.wikipedia.org/wiki/MIT_License).
diff --git a/node_modules/socks/build/client/socksclient.js b/node_modules/socks/build/client/socksclient.js
new file mode 100644
index 0000000..c343916
--- /dev/null
+++ b/node_modules/socks/build/client/socksclient.js
@@ -0,0 +1,793 @@
+"use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SocksClientError = exports.SocksClient = void 0;
+const events_1 = require("events");
+const net = require("net");
+const ip = require("ip");
+const smart_buffer_1 = require("smart-buffer");
+const constants_1 = require("../common/constants");
+const helpers_1 = require("../common/helpers");
+const receivebuffer_1 = require("../common/receivebuffer");
+const util_1 = require("../common/util");
+Object.defineProperty(exports, "SocksClientError", { enumerable: true, get: function () { return util_1.SocksClientError; } });
+class SocksClient extends events_1.EventEmitter {
+    constructor(options) {
+        super();
+        this.options = Object.assign({}, options);
+        // Validate SocksClientOptions
+        (0, helpers_1.validateSocksClientOptions)(options);
+        // Default state
+        this.setState(constants_1.SocksClientState.Created);
+    }
+    /**
+     * Creates a new SOCKS connection.
+     *
+     * Note: Supports callbacks and promises. Only supports the connect command.
+     * @param options { SocksClientOptions } Options.
+     * @param callback { Function } An optional callback function.
+     * @returns { Promise }
+     */
+    static createConnection(options, callback) {
+        return new Promise((resolve, reject) => {
+            // Validate SocksClientOptions
+            try {
+                (0, helpers_1.validateSocksClientOptions)(options, ['connect']);
+            }
+            catch (err) {
+                if (typeof callback === 'function') {
+                    callback(err);
+                    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                    return resolve(err); // Resolves pending promise (prevents memory leaks).
+                }
+                else {
+                    return reject(err);
+                }
+            }
+            const client = new SocksClient(options);
+            client.connect(options.existing_socket);
+            client.once('established', (info) => {
+                client.removeAllListeners();
+                if (typeof callback === 'function') {
+                    callback(null, info);
+                    resolve(info); // Resolves pending promise (prevents memory leaks).
+                }
+                else {
+                    resolve(info);
+                }
+            });
+            // Error occurred, failed to establish connection.
+            client.once('error', (err) => {
+                client.removeAllListeners();
+                if (typeof callback === 'function') {
+                    callback(err);
+                    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                    resolve(err); // Resolves pending promise (prevents memory leaks).
+                }
+                else {
+                    reject(err);
+                }
+            });
+        });
+    }
+    /**
+     * Creates a new SOCKS connection chain to a destination host through 2 or more SOCKS proxies.
+     *
+     * Note: Supports callbacks and promises. Only supports the connect method.
+     * Note: Implemented via createConnection() factory function.
+     * @param options { SocksClientChainOptions } Options
+     * @param callback { Function } An optional callback function.
+     * @returns { Promise }
+     */
+    static createConnectionChain(options, callback) {
+        // eslint-disable-next-line no-async-promise-executor
+        return new Promise((resolve, reject) => __awaiter(this, void 0, void 0, function* () {
+            // Validate SocksClientChainOptions
+            try {
+                (0, helpers_1.validateSocksClientChainOptions)(options);
+            }
+            catch (err) {
+                if (typeof callback === 'function') {
+                    callback(err);
+                    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                    return resolve(err); // Resolves pending promise (prevents memory leaks).
+                }
+                else {
+                    return reject(err);
+                }
+            }
+            // Shuffle proxies
+            if (options.randomizeChain) {
+                (0, util_1.shuffleArray)(options.proxies);
+            }
+            try {
+                let sock;
+                for (let i = 0; i < options.proxies.length; i++) {
+                    const nextProxy = options.proxies[i];
+                    // If we've reached the last proxy in the chain, the destination is the actual destination, otherwise it's the next proxy.
+                    const nextDestination = i === options.proxies.length - 1
+                        ? options.destination
+                        : {
+                            host: options.proxies[i + 1].host ||
+                                options.proxies[i + 1].ipaddress,
+                            port: options.proxies[i + 1].port,
+                        };
+                    // Creates the next connection in the chain.
+                    const result = yield SocksClient.createConnection({
+                        command: 'connect',
+                        proxy: nextProxy,
+                        destination: nextDestination,
+                        existing_socket: sock,
+                    });
+                    // If sock is undefined, assign it here.
+                    sock = sock || result.socket;
+                }
+                if (typeof callback === 'function') {
+                    callback(null, { socket: sock });
+                    resolve({ socket: sock }); // Resolves pending promise (prevents memory leaks).
+                }
+                else {
+                    resolve({ socket: sock });
+                }
+            }
+            catch (err) {
+                if (typeof callback === 'function') {
+                    callback(err);
+                    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                    resolve(err); // Resolves pending promise (prevents memory leaks).
+                }
+                else {
+                    reject(err);
+                }
+            }
+        }));
+    }
+    /**
+     * Creates a SOCKS UDP Frame.
+     * @param options
+     */
+    static createUDPFrame(options) {
+        const buff = new smart_buffer_1.SmartBuffer();
+        buff.writeUInt16BE(0);
+        buff.writeUInt8(options.frameNumber || 0);
+        // IPv4/IPv6/Hostname
+        if (net.isIPv4(options.remoteHost.host)) {
+            buff.writeUInt8(constants_1.Socks5HostType.IPv4);
+            buff.writeUInt32BE(ip.toLong(options.remoteHost.host));
+        }
+        else if (net.isIPv6(options.remoteHost.host)) {
+            buff.writeUInt8(constants_1.Socks5HostType.IPv6);
+            buff.writeBuffer(ip.toBuffer(options.remoteHost.host));
+        }
+        else {
+            buff.writeUInt8(constants_1.Socks5HostType.Hostname);
+            buff.writeUInt8(Buffer.byteLength(options.remoteHost.host));
+            buff.writeString(options.remoteHost.host);
+        }
+        // Port
+        buff.writeUInt16BE(options.remoteHost.port);
+        // Data
+        buff.writeBuffer(options.data);
+        return buff.toBuffer();
+    }
+    /**
+     * Parses a SOCKS UDP frame.
+     * @param data
+     */
+    static parseUDPFrame(data) {
+        const buff = smart_buffer_1.SmartBuffer.fromBuffer(data);
+        buff.readOffset = 2;
+        const frameNumber = buff.readUInt8();
+        const hostType = buff.readUInt8();
+        let remoteHost;
+        if (hostType === constants_1.Socks5HostType.IPv4) {
+            remoteHost = ip.fromLong(buff.readUInt32BE());
+        }
+        else if (hostType === constants_1.Socks5HostType.IPv6) {
+            remoteHost = ip.toString(buff.readBuffer(16));
+        }
+        else {
+            remoteHost = buff.readString(buff.readUInt8());
+        }
+        const remotePort = buff.readUInt16BE();
+        return {
+            frameNumber,
+            remoteHost: {
+                host: remoteHost,
+                port: remotePort,
+            },
+            data: buff.readBuffer(),
+        };
+    }
+    /**
+     * Internal state setter. If the SocksClient is in an error state, it cannot be changed to a non error state.
+     */
+    setState(newState) {
+        if (this.state !== constants_1.SocksClientState.Error) {
+            this.state = newState;
+        }
+    }
+    /**
+     * Starts the connection establishment to the proxy and destination.
+     * @param existingSocket Connected socket to use instead of creating a new one (internal use).
+     */
+    connect(existingSocket) {
+        this.onDataReceived = (data) => this.onDataReceivedHandler(data);
+        this.onClose = () => this.onCloseHandler();
+        this.onError = (err) => this.onErrorHandler(err);
+        this.onConnect = () => this.onConnectHandler();
+        // Start timeout timer (defaults to 30 seconds)
+        const timer = setTimeout(() => this.onEstablishedTimeout(), this.options.timeout || constants_1.DEFAULT_TIMEOUT);
+        // check whether unref is available as it differs from browser to NodeJS (#33)
+        if (timer.unref && typeof timer.unref === 'function') {
+            timer.unref();
+        }
+        // If an existing socket is provided, use it to negotiate SOCKS handshake. Otherwise create a new Socket.
+        if (existingSocket) {
+            this.socket = existingSocket;
+        }
+        else {
+            this.socket = new net.Socket();
+        }
+        // Attach Socket error handlers.
+        this.socket.once('close', this.onClose);
+        this.socket.once('error', this.onError);
+        this.socket.once('connect', this.onConnect);
+        this.socket.on('data', this.onDataReceived);
+        this.setState(constants_1.SocksClientState.Connecting);
+        this.receiveBuffer = new receivebuffer_1.ReceiveBuffer();
+        if (existingSocket) {
+            this.socket.emit('connect');
+        }
+        else {
+            this.socket.connect(this.getSocketOptions());
+            if (this.options.set_tcp_nodelay !== undefined &&
+                this.options.set_tcp_nodelay !== null) {
+                this.socket.setNoDelay(!!this.options.set_tcp_nodelay);
+            }
+        }
+        // Listen for established event so we can re-emit any excess data received during handshakes.
+        this.prependOnceListener('established', (info) => {
+            setImmediate(() => {
+                if (this.receiveBuffer.length > 0) {
+                    const excessData = this.receiveBuffer.get(this.receiveBuffer.length);
+                    info.socket.emit('data', excessData);
+                }
+                info.socket.resume();
+            });
+        });
+    }
+    // Socket options (defaults host/port to options.proxy.host/options.proxy.port)
+    getSocketOptions() {
+        return Object.assign(Object.assign({}, this.options.socket_options), { host: this.options.proxy.host || this.options.proxy.ipaddress, port: this.options.proxy.port });
+    }
+    /**
+     * Handles internal Socks timeout callback.
+     * Note: If the Socks client is not BoundWaitingForConnection or Established, the connection will be closed.
+     */
+    onEstablishedTimeout() {
+        if (this.state !== constants_1.SocksClientState.Established &&
+            this.state !== constants_1.SocksClientState.BoundWaitingForConnection) {
+            this.closeSocket(constants_1.ERRORS.ProxyConnectionTimedOut);
+        }
+    }
+    /**
+     * Handles Socket connect event.
+     */
+    onConnectHandler() {
+        this.setState(constants_1.SocksClientState.Connected);
+        // Send initial handshake.
+        if (this.options.proxy.type === 4) {
+            this.sendSocks4InitialHandshake();
+        }
+        else {
+            this.sendSocks5InitialHandshake();
+        }
+        this.setState(constants_1.SocksClientState.SentInitialHandshake);
+    }
+    /**
+     * Handles Socket data event.
+     * @param data
+     */
+    onDataReceivedHandler(data) {
+        /*
+          All received data is appended to a ReceiveBuffer.
+          This makes sure that all the data we need is received before we attempt to process it.
+        */
+        this.receiveBuffer.append(data);
+        // Process data that we have.
+        this.processData();
+    }
+    /**
+     * Handles processing of the data we have received.
+     */
+    processData() {
+        // If we have enough data to process the next step in the SOCKS handshake, proceed.
+        while (this.state !== constants_1.SocksClientState.Established &&
+            this.state !== constants_1.SocksClientState.Error &&
+            this.receiveBuffer.length >= this.nextRequiredPacketBufferSize) {
+            // Sent initial handshake, waiting for response.
+            if (this.state === constants_1.SocksClientState.SentInitialHandshake) {
+                if (this.options.proxy.type === 4) {
+                    // Socks v4 only has one handshake response.
+                    this.handleSocks4FinalHandshakeResponse();
+                }
+                else {
+                    // Socks v5 has two handshakes, handle initial one here.
+                    this.handleInitialSocks5HandshakeResponse();
+                }
+                // Sent auth request for Socks v5, waiting for response.
+            }
+            else if (this.state === constants_1.SocksClientState.SentAuthentication) {
+                this.handleInitialSocks5AuthenticationHandshakeResponse();
+                // Sent final Socks v5 handshake, waiting for final response.
+            }
+            else if (this.state === constants_1.SocksClientState.SentFinalHandshake) {
+                this.handleSocks5FinalHandshakeResponse();
+                // Socks BIND established. Waiting for remote connection via proxy.
+            }
+            else if (this.state === constants_1.SocksClientState.BoundWaitingForConnection) {
+                if (this.options.proxy.type === 4) {
+                    this.handleSocks4IncomingConnectionResponse();
+                }
+                else {
+                    this.handleSocks5IncomingConnectionResponse();
+                }
+            }
+            else {
+                this.closeSocket(constants_1.ERRORS.InternalError);
+                break;
+            }
+        }
+    }
+    /**
+     * Handles Socket close event.
+     * @param had_error
+     */
+    onCloseHandler() {
+        this.closeSocket(constants_1.ERRORS.SocketClosed);
+    }
+    /**
+     * Handles Socket error event.
+     * @param err
+     */
+    onErrorHandler(err) {
+        this.closeSocket(err.message);
+    }
+    /**
+     * Removes internal event listeners on the underlying Socket.
+     */
+    removeInternalSocketHandlers() {
+        // Pauses data flow of the socket (this is internally resumed after 'established' is emitted)
+        this.socket.pause();
+        this.socket.removeListener('data', this.onDataReceived);
+        this.socket.removeListener('close', this.onClose);
+        this.socket.removeListener('error', this.onError);
+        this.socket.removeListener('connect', this.onConnect);
+    }
+    /**
+     * Closes and destroys the underlying Socket. Emits an error event.
+     * @param err { String } An error string to include in error event.
+     */
+    closeSocket(err) {
+        // Make sure only one 'error' event is fired for the lifetime of this SocksClient instance.
+        if (this.state !== constants_1.SocksClientState.Error) {
+            // Set internal state to Error.
+            this.setState(constants_1.SocksClientState.Error);
+            // Destroy Socket
+            this.socket.destroy();
+            // Remove internal listeners
+            this.removeInternalSocketHandlers();
+            // Fire 'error' event.
+            this.emit('error', new util_1.SocksClientError(err, this.options));
+        }
+    }
+    /**
+     * Sends initial Socks v4 handshake request.
+     */
+    sendSocks4InitialHandshake() {
+        const userId = this.options.proxy.userId || '';
+        const buff = new smart_buffer_1.SmartBuffer();
+        buff.writeUInt8(0x04);
+        buff.writeUInt8(constants_1.SocksCommand[this.options.command]);
+        buff.writeUInt16BE(this.options.destination.port);
+        // Socks 4 (IPv4)
+        if (net.isIPv4(this.options.destination.host)) {
+            buff.writeBuffer(ip.toBuffer(this.options.destination.host));
+            buff.writeStringNT(userId);
+            // Socks 4a (hostname)
+        }
+        else {
+            buff.writeUInt8(0x00);
+            buff.writeUInt8(0x00);
+            buff.writeUInt8(0x00);
+            buff.writeUInt8(0x01);
+            buff.writeStringNT(userId);
+            buff.writeStringNT(this.options.destination.host);
+        }
+        this.nextRequiredPacketBufferSize =
+            constants_1.SOCKS_INCOMING_PACKET_SIZES.Socks4Response;
+        this.socket.write(buff.toBuffer());
+    }
+    /**
+     * Handles Socks v4 handshake response.
+     * @param data
+     */
+    handleSocks4FinalHandshakeResponse() {
+        const data = this.receiveBuffer.get(8);
+        if (data[1] !== constants_1.Socks4Response.Granted) {
+            this.closeSocket(`${constants_1.ERRORS.Socks4ProxyRejectedConnection} - (${constants_1.Socks4Response[data[1]]})`);
+        }
+        else {
+            // Bind response
+            if (constants_1.SocksCommand[this.options.command] === constants_1.SocksCommand.bind) {
+                const buff = smart_buffer_1.SmartBuffer.fromBuffer(data);
+                buff.readOffset = 2;
+                const remoteHost = {
+                    port: buff.readUInt16BE(),
+                    host: ip.fromLong(buff.readUInt32BE()),
+                };
+                // If host is 0.0.0.0, set to proxy host.
+                if (remoteHost.host === '0.0.0.0') {
+                    remoteHost.host = this.options.proxy.ipaddress;
+                }
+                this.setState(constants_1.SocksClientState.BoundWaitingForConnection);
+                this.emit('bound', { remoteHost, socket: this.socket });
+                // Connect response
+            }
+            else {
+                this.setState(constants_1.SocksClientState.Established);
+                this.removeInternalSocketHandlers();
+                this.emit('established', { socket: this.socket });
+            }
+        }
+    }
+    /**
+     * Handles Socks v4 incoming connection request (BIND)
+     * @param data
+     */
+    handleSocks4IncomingConnectionResponse() {
+        const data = this.receiveBuffer.get(8);
+        if (data[1] !== constants_1.Socks4Response.Granted) {
+            this.closeSocket(`${constants_1.ERRORS.Socks4ProxyRejectedIncomingBoundConnection} - (${constants_1.Socks4Response[data[1]]})`);
+        }
+        else {
+            const buff = smart_buffer_1.SmartBuffer.fromBuffer(data);
+            buff.readOffset = 2;
+            const remoteHost = {
+                port: buff.readUInt16BE(),
+                host: ip.fromLong(buff.readUInt32BE()),
+            };
+            this.setState(constants_1.SocksClientState.Established);
+            this.removeInternalSocketHandlers();
+            this.emit('established', { remoteHost, socket: this.socket });
+        }
+    }
+    /**
+     * Sends initial Socks v5 handshake request.
+     */
+    sendSocks5InitialHandshake() {
+        const buff = new smart_buffer_1.SmartBuffer();
+        // By default we always support no auth.
+        const supportedAuthMethods = [constants_1.Socks5Auth.NoAuth];
+        // We should only tell the proxy we support user/pass auth if auth info is actually provided.
+        // Note: As of Tor v0.3.5.7+, if user/pass auth is an option from the client, by default it will always take priority.
+        if (this.options.proxy.userId || this.options.proxy.password) {
+            supportedAuthMethods.push(constants_1.Socks5Auth.UserPass);
+        }
+        // Custom auth method?
+        if (this.options.proxy.custom_auth_method !== undefined) {
+            supportedAuthMethods.push(this.options.proxy.custom_auth_method);
+        }
+        // Build handshake packet
+        buff.writeUInt8(0x05);
+        buff.writeUInt8(supportedAuthMethods.length);
+        for (const authMethod of supportedAuthMethods) {
+            buff.writeUInt8(authMethod);
+        }
+        this.nextRequiredPacketBufferSize =
+            constants_1.SOCKS_INCOMING_PACKET_SIZES.Socks5InitialHandshakeResponse;
+        this.socket.write(buff.toBuffer());
+        this.setState(constants_1.SocksClientState.SentInitialHandshake);
+    }
+    /**
+     * Handles initial Socks v5 handshake response.
+     * @param data
+     */
+    handleInitialSocks5HandshakeResponse() {
+        const data = this.receiveBuffer.get(2);
+        if (data[0] !== 0x05) {
+            this.closeSocket(constants_1.ERRORS.InvalidSocks5IntiailHandshakeSocksVersion);
+        }
+        else if (data[1] === constants_1.SOCKS5_NO_ACCEPTABLE_AUTH) {
+            this.closeSocket(constants_1.ERRORS.InvalidSocks5InitialHandshakeNoAcceptedAuthType);
+        }
+        else {
+            // If selected Socks v5 auth method is no auth, send final handshake request.
+            if (data[1] === constants_1.Socks5Auth.NoAuth) {
+                this.socks5ChosenAuthType = constants_1.Socks5Auth.NoAuth;
+                this.sendSocks5CommandRequest();
+                // If selected Socks v5 auth method is user/password, send auth handshake.
+            }
+            else if (data[1] === constants_1.Socks5Auth.UserPass) {
+                this.socks5ChosenAuthType = constants_1.Socks5Auth.UserPass;
+                this.sendSocks5UserPassAuthentication();
+                // If selected Socks v5 auth method is the custom_auth_method, send custom handshake.
+            }
+            else if (data[1] === this.options.proxy.custom_auth_method) {
+                this.socks5ChosenAuthType = this.options.proxy.custom_auth_method;
+                this.sendSocks5CustomAuthentication();
+            }
+            else {
+                this.closeSocket(constants_1.ERRORS.InvalidSocks5InitialHandshakeUnknownAuthType);
+            }
+        }
+    }
+    /**
+     * Sends Socks v5 user & password auth handshake.
+     *
+     * Note: No auth and user/pass are currently supported.
+     */
+    sendSocks5UserPassAuthentication() {
+        const userId = this.options.proxy.userId || '';
+        const password = this.options.proxy.password || '';
+        const buff = new smart_buffer_1.SmartBuffer();
+        buff.writeUInt8(0x01);
+        buff.writeUInt8(Buffer.byteLength(userId));
+        buff.writeString(userId);
+        buff.writeUInt8(Buffer.byteLength(password));
+        buff.writeString(password);
+        this.nextRequiredPacketBufferSize =
+            constants_1.SOCKS_INCOMING_PACKET_SIZES.Socks5UserPassAuthenticationResponse;
+        this.socket.write(buff.toBuffer());
+        this.setState(constants_1.SocksClientState.SentAuthentication);
+    }
+    sendSocks5CustomAuthentication() {
+        return __awaiter(this, void 0, void 0, function* () {
+            this.nextRequiredPacketBufferSize =
+                this.options.proxy.custom_auth_response_size;
+            this.socket.write(yield this.options.proxy.custom_auth_request_handler());
+            this.setState(constants_1.SocksClientState.SentAuthentication);
+        });
+    }
+    handleSocks5CustomAuthHandshakeResponse(data) {
+        return __awaiter(this, void 0, void 0, function* () {
+            return yield this.options.proxy.custom_auth_response_handler(data);
+        });
+    }
+    handleSocks5AuthenticationNoAuthHandshakeResponse(data) {
+        return __awaiter(this, void 0, void 0, function* () {
+            return data[1] === 0x00;
+        });
+    }
+    handleSocks5AuthenticationUserPassHandshakeResponse(data) {
+        return __awaiter(this, void 0, void 0, function* () {
+            return data[1] === 0x00;
+        });
+    }
+    /**
+     * Handles Socks v5 auth handshake response.
+     * @param data
+     */
+    handleInitialSocks5AuthenticationHandshakeResponse() {
+        return __awaiter(this, void 0, void 0, function* () {
+            this.setState(constants_1.SocksClientState.ReceivedAuthenticationResponse);
+            let authResult = false;
+            if (this.socks5ChosenAuthType === constants_1.Socks5Auth.NoAuth) {
+                authResult = yield this.handleSocks5AuthenticationNoAuthHandshakeResponse(this.receiveBuffer.get(2));
+            }
+            else if (this.socks5ChosenAuthType === constants_1.Socks5Auth.UserPass) {
+                authResult =
+                    yield this.handleSocks5AuthenticationUserPassHandshakeResponse(this.receiveBuffer.get(2));
+            }
+            else if (this.socks5ChosenAuthType === this.options.proxy.custom_auth_method) {
+                authResult = yield this.handleSocks5CustomAuthHandshakeResponse(this.receiveBuffer.get(this.options.proxy.custom_auth_response_size));
+            }
+            if (!authResult) {
+                this.closeSocket(constants_1.ERRORS.Socks5AuthenticationFailed);
+            }
+            else {
+                this.sendSocks5CommandRequest();
+            }
+        });
+    }
+    /**
+     * Sends Socks v5 final handshake request.
+     */
+    sendSocks5CommandRequest() {
+        const buff = new smart_buffer_1.SmartBuffer();
+        buff.writeUInt8(0x05);
+        buff.writeUInt8(constants_1.SocksCommand[this.options.command]);
+        buff.writeUInt8(0x00);
+        // ipv4, ipv6, domain?
+        if (net.isIPv4(this.options.destination.host)) {
+            buff.writeUInt8(constants_1.Socks5HostType.IPv4);
+            buff.writeBuffer(ip.toBuffer(this.options.destination.host));
+        }
+        else if (net.isIPv6(this.options.destination.host)) {
+            buff.writeUInt8(constants_1.Socks5HostType.IPv6);
+            buff.writeBuffer(ip.toBuffer(this.options.destination.host));
+        }
+        else {
+            buff.writeUInt8(constants_1.Socks5HostType.Hostname);
+            buff.writeUInt8(this.options.destination.host.length);
+            buff.writeString(this.options.destination.host);
+        }
+        buff.writeUInt16BE(this.options.destination.port);
+        this.nextRequiredPacketBufferSize =
+            constants_1.SOCKS_INCOMING_PACKET_SIZES.Socks5ResponseHeader;
+        this.socket.write(buff.toBuffer());
+        this.setState(constants_1.SocksClientState.SentFinalHandshake);
+    }
+    /**
+     * Handles Socks v5 final handshake response.
+     * @param data
+     */
+    handleSocks5FinalHandshakeResponse() {
+        // Peek at available data (we need at least 5 bytes to get the hostname length)
+        const header = this.receiveBuffer.peek(5);
+        if (header[0] !== 0x05 || header[1] !== constants_1.Socks5Response.Granted) {
+            this.closeSocket(`${constants_1.ERRORS.InvalidSocks5FinalHandshakeRejected} - ${constants_1.Socks5Response[header[1]]}`);
+        }
+        else {
+            // Read address type
+            const addressType = header[3];
+            let remoteHost;
+            let buff;
+            // IPv4
+            if (addressType === constants_1.Socks5HostType.IPv4) {
+                // Check if data is available.
+                const dataNeeded = constants_1.SOCKS_INCOMING_PACKET_SIZES.Socks5ResponseIPv4;
+                if (this.receiveBuffer.length < dataNeeded) {
+                    this.nextRequiredPacketBufferSize = dataNeeded;
+                    return;
+                }
+                buff = smart_buffer_1.SmartBuffer.fromBuffer(this.receiveBuffer.get(dataNeeded).slice(4));
+                remoteHost = {
+                    host: ip.fromLong(buff.readUInt32BE()),
+                    port: buff.readUInt16BE(),
+                };
+                // If given host is 0.0.0.0, assume remote proxy ip instead.
+                if (remoteHost.host === '0.0.0.0') {
+                    remoteHost.host = this.options.proxy.ipaddress;
+                }
+                // Hostname
+            }
+            else if (addressType === constants_1.Socks5HostType.Hostname) {
+                const hostLength = header[4];
+                const dataNeeded = constants_1.SOCKS_INCOMING_PACKET_SIZES.Socks5ResponseHostname(hostLength); // header + host length + host + port
+                // Check if data is available.
+                if (this.receiveBuffer.length < dataNeeded) {
+                    this.nextRequiredPacketBufferSize = dataNeeded;
+                    return;
+                }
+                buff = smart_buffer_1.SmartBuffer.fromBuffer(this.receiveBuffer.get(dataNeeded).slice(5));
+                remoteHost = {
+                    host: buff.readString(hostLength),
+                    port: buff.readUInt16BE(),
+                };
+                // IPv6
+            }
+            else if (addressType === constants_1.Socks5HostType.IPv6) {
+                // Check if data is available.
+                const dataNeeded = constants_1.SOCKS_INCOMING_PACKET_SIZES.Socks5ResponseIPv6;
+                if (this.receiveBuffer.length < dataNeeded) {
+                    this.nextRequiredPacketBufferSize = dataNeeded;
+                    return;
+                }
+                buff = smart_buffer_1.SmartBuffer.fromBuffer(this.receiveBuffer.get(dataNeeded).slice(4));
+                remoteHost = {
+                    host: ip.toString(buff.readBuffer(16)),
+                    port: buff.readUInt16BE(),
+                };
+            }
+            // We have everything we need
+            this.setState(constants_1.SocksClientState.ReceivedFinalResponse);
+            // If using CONNECT, the client is now in the established state.
+            if (constants_1.SocksCommand[this.options.command] === constants_1.SocksCommand.connect) {
+                this.setState(constants_1.SocksClientState.Established);
+                this.removeInternalSocketHandlers();
+                this.emit('established', { remoteHost, socket: this.socket });
+            }
+            else if (constants_1.SocksCommand[this.options.command] === constants_1.SocksCommand.bind) {
+                /* If using BIND, the Socks client is now in BoundWaitingForConnection state.
+                   This means that the remote proxy server is waiting for a remote connection to the bound port. */
+                this.setState(constants_1.SocksClientState.BoundWaitingForConnection);
+                this.nextRequiredPacketBufferSize =
+                    constants_1.SOCKS_INCOMING_PACKET_SIZES.Socks5ResponseHeader;
+                this.emit('bound', { remoteHost, socket: this.socket });
+                /*
+                  If using Associate, the Socks client is now Established. And the proxy server is now accepting UDP packets at the
+                  given bound port. This initial Socks TCP connection must remain open for the UDP relay to continue to work.
+                */
+            }
+            else if (constants_1.SocksCommand[this.options.command] === constants_1.SocksCommand.associate) {
+                this.setState(constants_1.SocksClientState.Established);
+                this.removeInternalSocketHandlers();
+                this.emit('established', {
+                    remoteHost,
+                    socket: this.socket,
+                });
+            }
+        }
+    }
+    /**
+     * Handles Socks v5 incoming connection request (BIND).
+     */
+    handleSocks5IncomingConnectionResponse() {
+        // Peek at available data (we need at least 5 bytes to get the hostname length)
+        const header = this.receiveBuffer.peek(5);
+        if (header[0] !== 0x05 || header[1] !== constants_1.Socks5Response.Granted) {
+            this.closeSocket(`${constants_1.ERRORS.Socks5ProxyRejectedIncomingBoundConnection} - ${constants_1.Socks5Response[header[1]]}`);
+        }
+        else {
+            // Read address type
+            const addressType = header[3];
+            let remoteHost;
+            let buff;
+            // IPv4
+            if (addressType === constants_1.Socks5HostType.IPv4) {
+                // Check if data is available.
+                const dataNeeded = constants_1.SOCKS_INCOMING_PACKET_SIZES.Socks5ResponseIPv4;
+                if (this.receiveBuffer.length < dataNeeded) {
+                    this.nextRequiredPacketBufferSize = dataNeeded;
+                    return;
+                }
+                buff = smart_buffer_1.SmartBuffer.fromBuffer(this.receiveBuffer.get(dataNeeded).slice(4));
+                remoteHost = {
+                    host: ip.fromLong(buff.readUInt32BE()),
+                    port: buff.readUInt16BE(),
+                };
+                // If given host is 0.0.0.0, assume remote proxy ip instead.
+                if (remoteHost.host === '0.0.0.0') {
+                    remoteHost.host = this.options.proxy.ipaddress;
+                }
+                // Hostname
+            }
+            else if (addressType === constants_1.Socks5HostType.Hostname) {
+                const hostLength = header[4];
+                const dataNeeded = constants_1.SOCKS_INCOMING_PACKET_SIZES.Socks5ResponseHostname(hostLength); // header + host length + port
+                // Check if data is available.
+                if (this.receiveBuffer.length < dataNeeded) {
+                    this.nextRequiredPacketBufferSize = dataNeeded;
+                    return;
+                }
+                buff = smart_buffer_1.SmartBuffer.fromBuffer(this.receiveBuffer.get(dataNeeded).slice(5));
+                remoteHost = {
+                    host: buff.readString(hostLength),
+                    port: buff.readUInt16BE(),
+                };
+                // IPv6
+            }
+            else if (addressType === constants_1.Socks5HostType.IPv6) {
+                // Check if data is available.
+                const dataNeeded = constants_1.SOCKS_INCOMING_PACKET_SIZES.Socks5ResponseIPv6;
+                if (this.receiveBuffer.length < dataNeeded) {
+                    this.nextRequiredPacketBufferSize = dataNeeded;
+                    return;
+                }
+                buff = smart_buffer_1.SmartBuffer.fromBuffer(this.receiveBuffer.get(dataNeeded).slice(4));
+                remoteHost = {
+                    host: ip.toString(buff.readBuffer(16)),
+                    port: buff.readUInt16BE(),
+                };
+            }
+            this.setState(constants_1.SocksClientState.Established);
+            this.removeInternalSocketHandlers();
+            this.emit('established', { remoteHost, socket: this.socket });
+        }
+    }
+    get socksClientOptions() {
+        return Object.assign({}, this.options);
+    }
+}
+exports.SocksClient = SocksClient;
+//# sourceMappingURL=socksclient.js.map
\ No newline at end of file
diff --git a/node_modules/socks/build/client/socksclient.js.map b/node_modules/socks/build/client/socksclient.js.map
new file mode 100644
index 0000000..f01f317
--- /dev/null
+++ b/node_modules/socks/build/client/socksclient.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/node_modules/socks/build/common/constants.js b/node_modules/socks/build/common/constants.js
new file mode 100644
index 0000000..3c9ff90
--- /dev/null
+++ b/node_modules/socks/build/common/constants.js
@@ -0,0 +1,114 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SOCKS5_NO_ACCEPTABLE_AUTH = exports.SOCKS5_CUSTOM_AUTH_END = exports.SOCKS5_CUSTOM_AUTH_START = exports.SOCKS_INCOMING_PACKET_SIZES = exports.SocksClientState = exports.Socks5Response = exports.Socks5HostType = exports.Socks5Auth = exports.Socks4Response = exports.SocksCommand = exports.ERRORS = exports.DEFAULT_TIMEOUT = void 0;
+const DEFAULT_TIMEOUT = 30000;
+exports.DEFAULT_TIMEOUT = DEFAULT_TIMEOUT;
+// prettier-ignore
+const ERRORS = {
+    InvalidSocksCommand: 'An invalid SOCKS command was provided. Valid options are connect, bind, and associate.',
+    InvalidSocksCommandForOperation: 'An invalid SOCKS command was provided. Only a subset of commands are supported for this operation.',
+    InvalidSocksCommandChain: 'An invalid SOCKS command was provided. Chaining currently only supports the connect command.',
+    InvalidSocksClientOptionsDestination: 'An invalid destination host was provided.',
+    InvalidSocksClientOptionsExistingSocket: 'An invalid existing socket was provided. This should be an instance of stream.Duplex.',
+    InvalidSocksClientOptionsProxy: 'Invalid SOCKS proxy details were provided.',
+    InvalidSocksClientOptionsTimeout: 'An invalid timeout value was provided. Please enter a value above 0 (in ms).',
+    InvalidSocksClientOptionsProxiesLength: 'At least two socks proxies must be provided for chaining.',
+    InvalidSocksClientOptionsCustomAuthRange: 'Custom auth must be a value between 0x80 and 0xFE.',
+    InvalidSocksClientOptionsCustomAuthOptions: 'When a custom_auth_method is provided, custom_auth_request_handler, custom_auth_response_size, and custom_auth_response_handler must also be provided and valid.',
+    NegotiationError: 'Negotiation error',
+    SocketClosed: 'Socket closed',
+    ProxyConnectionTimedOut: 'Proxy connection timed out',
+    InternalError: 'SocksClient internal error (this should not happen)',
+    InvalidSocks4HandshakeResponse: 'Received invalid Socks4 handshake response',
+    Socks4ProxyRejectedConnection: 'Socks4 Proxy rejected connection',
+    InvalidSocks4IncomingConnectionResponse: 'Socks4 invalid incoming connection response',
+    Socks4ProxyRejectedIncomingBoundConnection: 'Socks4 Proxy rejected incoming bound connection',
+    InvalidSocks5InitialHandshakeResponse: 'Received invalid Socks5 initial handshake response',
+    InvalidSocks5IntiailHandshakeSocksVersion: 'Received invalid Socks5 initial handshake (invalid socks version)',
+    InvalidSocks5InitialHandshakeNoAcceptedAuthType: 'Received invalid Socks5 initial handshake (no accepted authentication type)',
+    InvalidSocks5InitialHandshakeUnknownAuthType: 'Received invalid Socks5 initial handshake (unknown authentication type)',
+    Socks5AuthenticationFailed: 'Socks5 Authentication failed',
+    InvalidSocks5FinalHandshake: 'Received invalid Socks5 final handshake response',
+    InvalidSocks5FinalHandshakeRejected: 'Socks5 proxy rejected connection',
+    InvalidSocks5IncomingConnectionResponse: 'Received invalid Socks5 incoming connection response',
+    Socks5ProxyRejectedIncomingBoundConnection: 'Socks5 Proxy rejected incoming bound connection',
+};
+exports.ERRORS = ERRORS;
+const SOCKS_INCOMING_PACKET_SIZES = {
+    Socks5InitialHandshakeResponse: 2,
+    Socks5UserPassAuthenticationResponse: 2,
+    // Command response + incoming connection (bind)
+    Socks5ResponseHeader: 5,
+    Socks5ResponseIPv4: 10,
+    Socks5ResponseIPv6: 22,
+    Socks5ResponseHostname: (hostNameLength) => hostNameLength + 7,
+    // Command response + incoming connection (bind)
+    Socks4Response: 8, // 2 header + 2 port + 4 ip
+};
+exports.SOCKS_INCOMING_PACKET_SIZES = SOCKS_INCOMING_PACKET_SIZES;
+var SocksCommand;
+(function (SocksCommand) {
+    SocksCommand[SocksCommand["connect"] = 1] = "connect";
+    SocksCommand[SocksCommand["bind"] = 2] = "bind";
+    SocksCommand[SocksCommand["associate"] = 3] = "associate";
+})(SocksCommand || (SocksCommand = {}));
+exports.SocksCommand = SocksCommand;
+var Socks4Response;
+(function (Socks4Response) {
+    Socks4Response[Socks4Response["Granted"] = 90] = "Granted";
+    Socks4Response[Socks4Response["Failed"] = 91] = "Failed";
+    Socks4Response[Socks4Response["Rejected"] = 92] = "Rejected";
+    Socks4Response[Socks4Response["RejectedIdent"] = 93] = "RejectedIdent";
+})(Socks4Response || (Socks4Response = {}));
+exports.Socks4Response = Socks4Response;
+var Socks5Auth;
+(function (Socks5Auth) {
+    Socks5Auth[Socks5Auth["NoAuth"] = 0] = "NoAuth";
+    Socks5Auth[Socks5Auth["GSSApi"] = 1] = "GSSApi";
+    Socks5Auth[Socks5Auth["UserPass"] = 2] = "UserPass";
+})(Socks5Auth || (Socks5Auth = {}));
+exports.Socks5Auth = Socks5Auth;
+const SOCKS5_CUSTOM_AUTH_START = 0x80;
+exports.SOCKS5_CUSTOM_AUTH_START = SOCKS5_CUSTOM_AUTH_START;
+const SOCKS5_CUSTOM_AUTH_END = 0xfe;
+exports.SOCKS5_CUSTOM_AUTH_END = SOCKS5_CUSTOM_AUTH_END;
+const SOCKS5_NO_ACCEPTABLE_AUTH = 0xff;
+exports.SOCKS5_NO_ACCEPTABLE_AUTH = SOCKS5_NO_ACCEPTABLE_AUTH;
+var Socks5Response;
+(function (Socks5Response) {
+    Socks5Response[Socks5Response["Granted"] = 0] = "Granted";
+    Socks5Response[Socks5Response["Failure"] = 1] = "Failure";
+    Socks5Response[Socks5Response["NotAllowed"] = 2] = "NotAllowed";
+    Socks5Response[Socks5Response["NetworkUnreachable"] = 3] = "NetworkUnreachable";
+    Socks5Response[Socks5Response["HostUnreachable"] = 4] = "HostUnreachable";
+    Socks5Response[Socks5Response["ConnectionRefused"] = 5] = "ConnectionRefused";
+    Socks5Response[Socks5Response["TTLExpired"] = 6] = "TTLExpired";
+    Socks5Response[Socks5Response["CommandNotSupported"] = 7] = "CommandNotSupported";
+    Socks5Response[Socks5Response["AddressNotSupported"] = 8] = "AddressNotSupported";
+})(Socks5Response || (Socks5Response = {}));
+exports.Socks5Response = Socks5Response;
+var Socks5HostType;
+(function (Socks5HostType) {
+    Socks5HostType[Socks5HostType["IPv4"] = 1] = "IPv4";
+    Socks5HostType[Socks5HostType["Hostname"] = 3] = "Hostname";
+    Socks5HostType[Socks5HostType["IPv6"] = 4] = "IPv6";
+})(Socks5HostType || (Socks5HostType = {}));
+exports.Socks5HostType = Socks5HostType;
+var SocksClientState;
+(function (SocksClientState) {
+    SocksClientState[SocksClientState["Created"] = 0] = "Created";
+    SocksClientState[SocksClientState["Connecting"] = 1] = "Connecting";
+    SocksClientState[SocksClientState["Connected"] = 2] = "Connected";
+    SocksClientState[SocksClientState["SentInitialHandshake"] = 3] = "SentInitialHandshake";
+    SocksClientState[SocksClientState["ReceivedInitialHandshakeResponse"] = 4] = "ReceivedInitialHandshakeResponse";
+    SocksClientState[SocksClientState["SentAuthentication"] = 5] = "SentAuthentication";
+    SocksClientState[SocksClientState["ReceivedAuthenticationResponse"] = 6] = "ReceivedAuthenticationResponse";
+    SocksClientState[SocksClientState["SentFinalHandshake"] = 7] = "SentFinalHandshake";
+    SocksClientState[SocksClientState["ReceivedFinalResponse"] = 8] = "ReceivedFinalResponse";
+    SocksClientState[SocksClientState["BoundWaitingForConnection"] = 9] = "BoundWaitingForConnection";
+    SocksClientState[SocksClientState["Established"] = 10] = "Established";
+    SocksClientState[SocksClientState["Disconnected"] = 11] = "Disconnected";
+    SocksClientState[SocksClientState["Error"] = 99] = "Error";
+})(SocksClientState || (SocksClientState = {}));
+exports.SocksClientState = SocksClientState;
+//# sourceMappingURL=constants.js.map
\ No newline at end of file
diff --git a/node_modules/socks/build/common/constants.js.map b/node_modules/socks/build/common/constants.js.map
new file mode 100644
index 0000000..c1e070d
--- /dev/null
+++ b/node_modules/socks/build/common/constants.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"constants.js","sourceRoot":"","sources":["../../src/common/constants.ts"],"names":[],"mappings":";;;AAIA,MAAM,eAAe,GAAG,KAAK,CAAC;AA4M5B,0CAAe;AAxMjB,kBAAkB;AAClB,MAAM,MAAM,GAAG;IACb,mBAAmB,EAAE,wFAAwF;IAC7G,+BAA+B,EAAE,oGAAoG;IACrI,wBAAwB,EAAE,8FAA8F;IACxH,oCAAoC,EAAE,2CAA2C;IACjF,uCAAuC,EAAE,uFAAuF;IAChI,8BAA8B,EAAE,4CAA4C;IAC5E,gCAAgC,EAAE,8EAA8E;IAChH,sCAAsC,EAAE,2DAA2D;IACnG,wCAAwC,EAAE,oDAAoD;IAC9F,0CAA0C,EAAE,kKAAkK;IAC9M,gBAAgB,EAAE,mBAAmB;IACrC,YAAY,EAAE,eAAe;IAC7B,uBAAuB,EAAE,4BAA4B;IACrD,aAAa,EAAE,qDAAqD;IACpE,8BAA8B,EAAE,4CAA4C;IAC5E,6BAA6B,EAAE,kCAAkC;IACjE,uCAAuC,EAAE,6CAA6C;IACtF,0CAA0C,EAAE,iDAAiD;IAC7F,qCAAqC,EAAE,oDAAoD;IAC3F,yCAAyC,EAAE,mEAAmE;IAC9G,+CAA+C,EAAE,6EAA6E;IAC9H,4CAA4C,EAAE,yEAAyE;IACvH,0BAA0B,EAAE,8BAA8B;IAC1D,2BAA2B,EAAE,kDAAkD;IAC/E,mCAAmC,EAAE,kCAAkC;IACvE,uCAAuC,EAAE,sDAAsD;IAC/F,0CAA0C,EAAE,iDAAiD;CAC9F,CAAC;AA4KA,wBAAM;AA1KR,MAAM,2BAA2B,GAAG;IAClC,8BAA8B,EAAE,CAAC;IACjC,oCAAoC,EAAE,CAAC;IACvC,gDAAgD;IAChD,oBAAoB,EAAE,CAAC;IACvB,kBAAkB,EAAE,EAAE;IACtB,kBAAkB,EAAE,EAAE;IACtB,sBAAsB,EAAE,CAAC,cAAsB,EAAE,EAAE,CAAC,cAAc,GAAG,CAAC;IACtE,gDAAgD;IAChD,cAAc,EAAE,CAAC,EAAE,2BAA2B;CAC/C,CAAC;AAgLA,kEAA2B;AA5K7B,IAAK,YAIJ;AAJD,WAAK,YAAY;IACf,qDAAc,CAAA;IACd,+CAAW,CAAA;IACX,yDAAgB,CAAA;AAClB,CAAC,EAJI,YAAY,KAAZ,YAAY,QAIhB;AA0JC,oCAAY;AAxJd,IAAK,cAKJ;AALD,WAAK,cAAc;IACjB,0DAAc,CAAA;IACd,wDAAa,CAAA;IACb,4DAAe,CAAA;IACf,sEAAoB,CAAA;AACtB,CAAC,EALI,cAAc,KAAd,cAAc,QAKlB;AAoJC,wCAAc;AAlJhB,IAAK,UAIJ;AAJD,WAAK,UAAU;IACb,+CAAa,CAAA;IACb,+CAAa,CAAA;IACb,mDAAe,CAAA;AACjB,CAAC,EAJI,UAAU,KAAV,UAAU,QAId;AA+IC,gCAAU;AA7IZ,MAAM,wBAAwB,GAAG,IAAI,CAAC;AA0JpC,4DAAwB;AAzJ1B,MAAM,sBAAsB,GAAG,IAAI,CAAC;AA0JlC,wDAAsB;AAxJxB,MAAM,yBAAyB,GAAG,IAAI,CAAC;AAyJrC,8DAAyB;AAvJ3B,IAAK,cAUJ;AAVD,WAAK,cAAc;IACjB,yDAAc,CAAA;IACd,yDAAc,CAAA;IACd,+DAAiB,CAAA;IACjB,+EAAyB,CAAA;IACzB,yEAAsB,CAAA;IACtB,6EAAwB,CAAA;IACxB,+DAAiB,CAAA;IACjB,iFAA0B,CAAA;IAC1B,iFAA0B,CAAA;AAC5B,CAAC,EAVI,cAAc,KAAd,cAAc,QAUlB;AAgIC,wCAAc;AA9HhB,IAAK,cAIJ;AAJD,WAAK,cAAc;IACjB,mDAAW,CAAA;IACX,2DAAe,CAAA;IACf,mDAAW,CAAA;AACb,CAAC,EAJI,cAAc,KAAd,cAAc,QAIlB;AAyHC,wCAAc;AAvHhB,IAAK,gBAcJ;AAdD,WAAK,gBAAgB;IACnB,6DAAW,CAAA;IACX,mEAAc,CAAA;IACd,iEAAa,CAAA;IACb,uFAAwB,CAAA;IACxB,+GAAoC,CAAA;IACpC,mFAAsB,CAAA;IACtB,2GAAkC,CAAA;IAClC,mFAAsB,CAAA;IACtB,yFAAyB,CAAA;IACzB,iGAA6B,CAAA;IAC7B,sEAAgB,CAAA;IAChB,wEAAiB,CAAA;IACjB,0DAAU,CAAA;AACZ,CAAC,EAdI,gBAAgB,KAAhB,gBAAgB,QAcpB;AA2GC,4CAAgB"}
\ No newline at end of file
diff --git a/node_modules/socks/build/common/helpers.js b/node_modules/socks/build/common/helpers.js
new file mode 100644
index 0000000..f84db8f
--- /dev/null
+++ b/node_modules/socks/build/common/helpers.js
@@ -0,0 +1,128 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.validateSocksClientChainOptions = exports.validateSocksClientOptions = void 0;
+const util_1 = require("./util");
+const constants_1 = require("./constants");
+const stream = require("stream");
+/**
+ * Validates the provided SocksClientOptions
+ * @param options { SocksClientOptions }
+ * @param acceptedCommands { string[] } A list of accepted SocksProxy commands.
+ */
+function validateSocksClientOptions(options, acceptedCommands = ['connect', 'bind', 'associate']) {
+    // Check SOCKs command option.
+    if (!constants_1.SocksCommand[options.command]) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksCommand, options);
+    }
+    // Check SocksCommand for acceptable command.
+    if (acceptedCommands.indexOf(options.command) === -1) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksCommandForOperation, options);
+    }
+    // Check destination
+    if (!isValidSocksRemoteHost(options.destination)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsDestination, options);
+    }
+    // Check SOCKS proxy to use
+    if (!isValidSocksProxy(options.proxy)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsProxy, options);
+    }
+    // Validate custom auth (if set)
+    validateCustomProxyAuth(options.proxy, options);
+    // Check timeout
+    if (options.timeout && !isValidTimeoutValue(options.timeout)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsTimeout, options);
+    }
+    // Check existing_socket (if provided)
+    if (options.existing_socket &&
+        !(options.existing_socket instanceof stream.Duplex)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsExistingSocket, options);
+    }
+}
+exports.validateSocksClientOptions = validateSocksClientOptions;
+/**
+ * Validates the SocksClientChainOptions
+ * @param options { SocksClientChainOptions }
+ */
+function validateSocksClientChainOptions(options) {
+    // Only connect is supported when chaining.
+    if (options.command !== 'connect') {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksCommandChain, options);
+    }
+    // Check destination
+    if (!isValidSocksRemoteHost(options.destination)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsDestination, options);
+    }
+    // Validate proxies (length)
+    if (!(options.proxies &&
+        Array.isArray(options.proxies) &&
+        options.proxies.length >= 2)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsProxiesLength, options);
+    }
+    // Validate proxies
+    options.proxies.forEach((proxy) => {
+        if (!isValidSocksProxy(proxy)) {
+            throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsProxy, options);
+        }
+        // Validate custom auth (if set)
+        validateCustomProxyAuth(proxy, options);
+    });
+    // Check timeout
+    if (options.timeout && !isValidTimeoutValue(options.timeout)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsTimeout, options);
+    }
+}
+exports.validateSocksClientChainOptions = validateSocksClientChainOptions;
+function validateCustomProxyAuth(proxy, options) {
+    if (proxy.custom_auth_method !== undefined) {
+        // Invalid auth method range
+        if (proxy.custom_auth_method < constants_1.SOCKS5_CUSTOM_AUTH_START ||
+            proxy.custom_auth_method > constants_1.SOCKS5_CUSTOM_AUTH_END) {
+            throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsCustomAuthRange, options);
+        }
+        // Missing custom_auth_request_handler
+        if (proxy.custom_auth_request_handler === undefined ||
+            typeof proxy.custom_auth_request_handler !== 'function') {
+            throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsCustomAuthOptions, options);
+        }
+        // Missing custom_auth_response_size
+        if (proxy.custom_auth_response_size === undefined) {
+            throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsCustomAuthOptions, options);
+        }
+        // Missing/invalid custom_auth_response_handler
+        if (proxy.custom_auth_response_handler === undefined ||
+            typeof proxy.custom_auth_response_handler !== 'function') {
+            throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsCustomAuthOptions, options);
+        }
+    }
+}
+/**
+ * Validates a SocksRemoteHost
+ * @param remoteHost { SocksRemoteHost }
+ */
+function isValidSocksRemoteHost(remoteHost) {
+    return (remoteHost &&
+        typeof remoteHost.host === 'string' &&
+        typeof remoteHost.port === 'number' &&
+        remoteHost.port >= 0 &&
+        remoteHost.port <= 65535);
+}
+/**
+ * Validates a SocksProxy
+ * @param proxy { SocksProxy }
+ */
+function isValidSocksProxy(proxy) {
+    return (proxy &&
+        (typeof proxy.host === 'string' || typeof proxy.ipaddress === 'string') &&
+        typeof proxy.port === 'number' &&
+        proxy.port >= 0 &&
+        proxy.port <= 65535 &&
+        (proxy.type === 4 || proxy.type === 5));
+}
+/**
+ * Validates a timeout value.
+ * @param value { Number }
+ */
+function isValidTimeoutValue(value) {
+    return typeof value === 'number' && value > 0;
+}
+//# sourceMappingURL=helpers.js.map
\ No newline at end of file
diff --git a/node_modules/socks/build/common/helpers.js.map b/node_modules/socks/build/common/helpers.js.map
new file mode 100644
index 0000000..dae1248
--- /dev/null
+++ b/node_modules/socks/build/common/helpers.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"helpers.js","sourceRoot":"","sources":["../../src/common/helpers.ts"],"names":[],"mappings":";;;AAKA,iCAAwC;AACxC,2CAMqB;AACrB,iCAAiC;AAEjC;;;;GAIG;AACH,SAAS,0BAA0B,CACjC,OAA2B,EAC3B,gBAAgB,GAAG,CAAC,SAAS,EAAE,MAAM,EAAE,WAAW,CAAC;IAEnD,8BAA8B;IAC9B,IAAI,CAAC,wBAAY,CAAC,OAAO,CAAC,OAAO,CAAC,EAAE;QAClC,MAAM,IAAI,uBAAgB,CAAC,kBAAM,CAAC,mBAAmB,EAAE,OAAO,CAAC,CAAC;KACjE;IAED,6CAA6C;IAC7C,IAAI,gBAAgB,CAAC,OAAO,CAAC,OAAO,CAAC,OAAO,CAAC,KAAK,CAAC,CAAC,EAAE;QACpD,MAAM,IAAI,uBAAgB,CAAC,kBAAM,CAAC,+BAA+B,EAAE,OAAO,CAAC,CAAC;KAC7E;IAED,oBAAoB;IACpB,IAAI,CAAC,sBAAsB,CAAC,OAAO,CAAC,WAAW,CAAC,EAAE;QAChD,MAAM,IAAI,uBAAgB,CACxB,kBAAM,CAAC,oCAAoC,EAC3C,OAAO,CACR,CAAC;KACH;IAED,2BAA2B;IAC3B,IAAI,CAAC,iBAAiB,CAAC,OAAO,CAAC,KAAK,CAAC,EAAE;QACrC,MAAM,IAAI,uBAAgB,CAAC,kBAAM,CAAC,8BAA8B,EAAE,OAAO,CAAC,CAAC;KAC5E;IAED,gCAAgC;IAChC,uBAAuB,CAAC,OAAO,CAAC,KAAK,EAAE,OAAO,CAAC,CAAC;IAEhD,gBAAgB;IAChB,IAAI,OAAO,CAAC,OAAO,IAAI,CAAC,mBAAmB,CAAC,OAAO,CAAC,OAAO,CAAC,EAAE;QAC5D,MAAM,IAAI,uBAAgB,CACxB,kBAAM,CAAC,gCAAgC,EACvC,OAAO,CACR,CAAC;KACH;IAED,sCAAsC;IACtC,IACE,OAAO,CAAC,eAAe;QACvB,CAAC,CAAC,OAAO,CAAC,eAAe,YAAY,MAAM,CAAC,MAAM,CAAC,EACnD;QACA,MAAM,IAAI,uBAAgB,CACxB,kBAAM,CAAC,uCAAuC,EAC9C,OAAO,CACR,CAAC;KACH;AACH,CAAC;AA6IO,gEAA0B;AA3IlC;;;GAGG;AACH,SAAS,+BAA+B,CAAC,OAAgC;IACvE,2CAA2C;IAC3C,IAAI,OAAO,CAAC,OAAO,KAAK,SAAS,EAAE;QACjC,MAAM,IAAI,uBAAgB,CAAC,kBAAM,CAAC,wBAAwB,EAAE,OAAO,CAAC,CAAC;KACtE;IAED,oBAAoB;IACpB,IAAI,CAAC,sBAAsB,CAAC,OAAO,CAAC,WAAW,CAAC,EAAE;QAChD,MAAM,IAAI,uBAAgB,CACxB,kBAAM,CAAC,oCAAoC,EAC3C,OAAO,CACR,CAAC;KACH;IAED,4BAA4B;IAC5B,IACE,CAAC,CACC,OAAO,CAAC,OAAO;QACf,KAAK,CAAC,OAAO,CAAC,OAAO,CAAC,OAAO,CAAC;QAC9B,OAAO,CAAC,OAAO,CAAC,MAAM,IAAI,CAAC,CAC5B,EACD;QACA,MAAM,IAAI,uBAAgB,CACxB,kBAAM,CAAC,sCAAsC,EAC7C,OAAO,CACR,CAAC;KACH;IAED,mBAAmB;IACnB,OAAO,CAAC,OAAO,CAAC,OAAO,CAAC,CAAC,KAAiB,EAAE,EAAE;QAC5C,IAAI,CAAC,iBAAiB,CAAC,KAAK,CAAC,EAAE;YAC7B,MAAM,IAAI,uBAAgB,CACxB,kBAAM,CAAC,8BAA8B,EACrC,OAAO,CACR,CAAC;SACH;QAED,gCAAgC;QAChC,uBAAuB,CAAC,KAAK,EAAE,OAAO,CAAC,CAAC;IAC1C,CAAC,CAAC,CAAC;IAEH,gBAAgB;IAChB,IAAI,OAAO,CAAC,OAAO,IAAI,CAAC,mBAAmB,CAAC,OAAO,CAAC,OAAO,CAAC,EAAE;QAC5D,MAAM,IAAI,uBAAgB,CACxB,kBAAM,CAAC,gCAAgC,EACvC,OAAO,CACR,CAAC;KACH;AACH,CAAC;AAuFmC,0EAA+B;AArFnE,SAAS,uBAAuB,CAC9B,KAAiB,EACjB,OAAqD;IAErD,IAAI,KAAK,CAAC,kBAAkB,KAAK,SAAS,EAAE;QAC1C,4BAA4B;QAC5B,IACE,KAAK,CAAC,kBAAkB,GAAG,oCAAwB;YACnD,KAAK,CAAC,kBAAkB,GAAG,kCAAsB,EACjD;YACA,MAAM,IAAI,uBAAgB,CACxB,kBAAM,CAAC,wCAAwC,EAC/C,OAAO,CACR,CAAC;SACH;QAED,sCAAsC;QACtC,IACE,KAAK,CAAC,2BAA2B,KAAK,SAAS;YAC/C,OAAO,KAAK,CAAC,2BAA2B,KAAK,UAAU,EACvD;YACA,MAAM,IAAI,uBAAgB,CACxB,kBAAM,CAAC,0CAA0C,EACjD,OAAO,CACR,CAAC;SACH;QAED,oCAAoC;QACpC,IAAI,KAAK,CAAC,yBAAyB,KAAK,SAAS,EAAE;YACjD,MAAM,IAAI,uBAAgB,CACxB,kBAAM,CAAC,0CAA0C,EACjD,OAAO,CACR,CAAC;SACH;QAED,+CAA+C;QAC/C,IACE,KAAK,CAAC,4BAA4B,KAAK,SAAS;YAChD,OAAO,KAAK,CAAC,4BAA4B,KAAK,UAAU,EACxD;YACA,MAAM,IAAI,uBAAgB,CACxB,kBAAM,CAAC,0CAA0C,EACjD,OAAO,CACR,CAAC;SACH;KACF;AACH,CAAC;AAED;;;GAGG;AACH,SAAS,sBAAsB,CAAC,UAA2B;IACzD,OAAO,CACL,UAAU;QACV,OAAO,UAAU,CAAC,IAAI,KAAK,QAAQ;QACnC,OAAO,UAAU,CAAC,IAAI,KAAK,QAAQ;QACnC,UAAU,CAAC,IAAI,IAAI,CAAC;QACpB,UAAU,CAAC,IAAI,IAAI,KAAK,CACzB,CAAC;AACJ,CAAC;AAED;;;GAGG;AACH,SAAS,iBAAiB,CAAC,KAAiB;IAC1C,OAAO,CACL,KAAK;QACL,CAAC,OAAO,KAAK,CAAC,IAAI,KAAK,QAAQ,IAAI,OAAO,KAAK,CAAC,SAAS,KAAK,QAAQ,CAAC;QACvE,OAAO,KAAK,CAAC,IAAI,KAAK,QAAQ;QAC9B,KAAK,CAAC,IAAI,IAAI,CAAC;QACf,KAAK,CAAC,IAAI,IAAI,KAAK;QACnB,CAAC,KAAK,CAAC,IAAI,KAAK,CAAC,IAAI,KAAK,CAAC,IAAI,KAAK,CAAC,CAAC,CACvC,CAAC;AACJ,CAAC;AAED;;;GAGG;AACH,SAAS,mBAAmB,CAAC,KAAa;IACxC,OAAO,OAAO,KAAK,KAAK,QAAQ,IAAI,KAAK,GAAG,CAAC,CAAC;AAChD,CAAC"}
\ No newline at end of file
diff --git a/node_modules/socks/build/common/receivebuffer.js b/node_modules/socks/build/common/receivebuffer.js
new file mode 100644
index 0000000..3dacbf9
--- /dev/null
+++ b/node_modules/socks/build/common/receivebuffer.js
@@ -0,0 +1,43 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ReceiveBuffer = void 0;
+class ReceiveBuffer {
+    constructor(size = 4096) {
+        this.buffer = Buffer.allocUnsafe(size);
+        this.offset = 0;
+        this.originalSize = size;
+    }
+    get length() {
+        return this.offset;
+    }
+    append(data) {
+        if (!Buffer.isBuffer(data)) {
+            throw new Error('Attempted to append a non-buffer instance to ReceiveBuffer.');
+        }
+        if (this.offset + data.length >= this.buffer.length) {
+            const tmp = this.buffer;
+            this.buffer = Buffer.allocUnsafe(Math.max(this.buffer.length + this.originalSize, this.buffer.length + data.length));
+            tmp.copy(this.buffer);
+        }
+        data.copy(this.buffer, this.offset);
+        return (this.offset += data.length);
+    }
+    peek(length) {
+        if (length > this.offset) {
+            throw new Error('Attempted to read beyond the bounds of the managed internal data.');
+        }
+        return this.buffer.slice(0, length);
+    }
+    get(length) {
+        if (length > this.offset) {
+            throw new Error('Attempted to read beyond the bounds of the managed internal data.');
+        }
+        const value = Buffer.allocUnsafe(length);
+        this.buffer.slice(0, length).copy(value);
+        this.buffer.copyWithin(0, length, length + this.offset - length);
+        this.offset -= length;
+        return value;
+    }
+}
+exports.ReceiveBuffer = ReceiveBuffer;
+//# sourceMappingURL=receivebuffer.js.map
\ No newline at end of file
diff --git a/node_modules/socks/build/common/receivebuffer.js.map b/node_modules/socks/build/common/receivebuffer.js.map
new file mode 100644
index 0000000..af5e220
--- /dev/null
+++ b/node_modules/socks/build/common/receivebuffer.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"receivebuffer.js","sourceRoot":"","sources":["../../src/common/receivebuffer.ts"],"names":[],"mappings":";;;AAAA,MAAM,aAAa;IAKjB,YAAY,IAAI,GAAG,IAAI;QACrB,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC,WAAW,CAAC,IAAI,CAAC,CAAC;QACvC,IAAI,CAAC,MAAM,GAAG,CAAC,CAAC;QAChB,IAAI,CAAC,YAAY,GAAG,IAAI,CAAC;IAC3B,CAAC;IAED,IAAI,MAAM;QACR,OAAO,IAAI,CAAC,MAAM,CAAC;IACrB,CAAC;IAED,MAAM,CAAC,IAAY;QACjB,IAAI,CAAC,MAAM,CAAC,QAAQ,CAAC,IAAI,CAAC,EAAE;YAC1B,MAAM,IAAI,KAAK,CACb,6DAA6D,CAC9D,CAAC;SACH;QAED,IAAI,IAAI,CAAC,MAAM,GAAG,IAAI,CAAC,MAAM,IAAI,IAAI,CAAC,MAAM,CAAC,MAAM,EAAE;YACnD,MAAM,GAAG,GAAG,IAAI,CAAC,MAAM,CAAC;YACxB,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC,WAAW,CAC9B,IAAI,CAAC,GAAG,CACN,IAAI,CAAC,MAAM,CAAC,MAAM,GAAG,IAAI,CAAC,YAAY,EACtC,IAAI,CAAC,MAAM,CAAC,MAAM,GAAG,IAAI,CAAC,MAAM,CACjC,CACF,CAAC;YACF,GAAG,CAAC,IAAI,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC;SACvB;QAED,IAAI,CAAC,IAAI,CAAC,IAAI,CAAC,MAAM,EAAE,IAAI,CAAC,MAAM,CAAC,CAAC;QACpC,OAAO,CAAC,IAAI,CAAC,MAAM,IAAI,IAAI,CAAC,MAAM,CAAC,CAAC;IACtC,CAAC;IAED,IAAI,CAAC,MAAc;QACjB,IAAI,MAAM,GAAG,IAAI,CAAC,MAAM,EAAE;YACxB,MAAM,IAAI,KAAK,CACb,mEAAmE,CACpE,CAAC;SACH;QACD,OAAO,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC,EAAE,MAAM,CAAC,CAAC;IACtC,CAAC;IAED,GAAG,CAAC,MAAc;QAChB,IAAI,MAAM,GAAG,IAAI,CAAC,MAAM,EAAE;YACxB,MAAM,IAAI,KAAK,CACb,mEAAmE,CACpE,CAAC;SACH;QAED,MAAM,KAAK,GAAG,MAAM,CAAC,WAAW,CAAC,MAAM,CAAC,CAAC;QACzC,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC,EAAE,MAAM,CAAC,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;QACzC,IAAI,CAAC,MAAM,CAAC,UAAU,CAAC,CAAC,EAAE,MAAM,EAAE,MAAM,GAAG,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC,CAAC;QACjE,IAAI,CAAC,MAAM,IAAI,MAAM,CAAC;QAEtB,OAAO,KAAK,CAAC;IACf,CAAC;CACF;AAEO,sCAAa"}
\ No newline at end of file
diff --git a/node_modules/socks/build/common/util.js b/node_modules/socks/build/common/util.js
new file mode 100644
index 0000000..f66b72e
--- /dev/null
+++ b/node_modules/socks/build/common/util.js
@@ -0,0 +1,25 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.shuffleArray = exports.SocksClientError = void 0;
+/**
+ * Error wrapper for SocksClient
+ */
+class SocksClientError extends Error {
+    constructor(message, options) {
+        super(message);
+        this.options = options;
+    }
+}
+exports.SocksClientError = SocksClientError;
+/**
+ * Shuffles a given array.
+ * @param array The array to shuffle.
+ */
+function shuffleArray(array) {
+    for (let i = array.length - 1; i > 0; i--) {
+        const j = Math.floor(Math.random() * (i + 1));
+        [array[i], array[j]] = [array[j], array[i]];
+    }
+}
+exports.shuffleArray = shuffleArray;
+//# sourceMappingURL=util.js.map
\ No newline at end of file
diff --git a/node_modules/socks/build/common/util.js.map b/node_modules/socks/build/common/util.js.map
new file mode 100644
index 0000000..f199323
--- /dev/null
+++ b/node_modules/socks/build/common/util.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"util.js","sourceRoot":"","sources":["../../src/common/util.ts"],"names":[],"mappings":";;;AAEA;;GAEG;AACH,MAAM,gBAAiB,SAAQ,KAAK;IAClC,YACE,OAAe,EACR,OAAqD;QAE5D,KAAK,CAAC,OAAO,CAAC,CAAC;QAFR,YAAO,GAAP,OAAO,CAA8C;IAG9D,CAAC;CACF;AAuBuB,4CAAgB;AArBxC;;;GAGG;AACH,SAAS,YAAY,CAAC,KAAgB;IACpC,KAAK,IAAI,CAAC,GAAG,KAAK,CAAC,MAAM,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,EAAE,CAAC,EAAE,EAAE;QACzC,MAAM,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,MAAM,EAAE,GAAG,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC;QAC9C,CAAC,KAAK,CAAC,CAAC,CAAC,EAAE,KAAK,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,KAAK,CAAC,CAAC,CAAC,EAAE,KAAK,CAAC,CAAC,CAAC,CAAC,CAAC;KAC7C;AACH,CAAC;AAYyC,oCAAY"}
\ No newline at end of file
diff --git a/node_modules/socks/build/index.js b/node_modules/socks/build/index.js
new file mode 100644
index 0000000..05fbb1d
--- /dev/null
+++ b/node_modules/socks/build/index.js
@@ -0,0 +1,18 @@
+"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __exportStar = (this && this.__exportStar) || function(m, exports) {
+    for (var p in m) if (p !== "default" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+__exportStar(require("./client/socksclient"), exports);
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/node_modules/socks/build/index.js.map b/node_modules/socks/build/index.js.map
new file mode 100644
index 0000000..0e2bcb2
--- /dev/null
+++ b/node_modules/socks/build/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;AAAA,uDAAqC"}
\ No newline at end of file
diff --git a/node_modules/socks/docs/examples/index.md b/node_modules/socks/docs/examples/index.md
new file mode 100644
index 0000000..87bfe25
--- /dev/null
+++ b/node_modules/socks/docs/examples/index.md
@@ -0,0 +1,17 @@
+# socks examples
+
+## TypeScript Examples
+
+[Connect command](typescript/connectExample.md)
+
+[Bind command](typescript/bindExample.md)
+
+[Associate command](typescript/associateExample.md)
+
+## JavaScript Examples
+
+[Connect command](javascript/connectExample.md)
+
+[Bind command](javascript/bindExample.md)
+
+[Associate command](javascript/associateExample.md)
\ No newline at end of file
diff --git a/node_modules/socks/docs/examples/javascript/associateExample.md b/node_modules/socks/docs/examples/javascript/associateExample.md
new file mode 100644
index 0000000..c2c7b17
--- /dev/null
+++ b/node_modules/socks/docs/examples/javascript/associateExample.md
@@ -0,0 +1,90 @@
+# socks examples
+
+## Example for SOCKS 'associate' command
+
+The associate command tells the SOCKS proxy server to establish a UDP relay. The server binds to a new UDP port and communicates the newly opened port back to the origin client. From here, any SOCKS UDP frame packets sent to this special UDP port on the Proxy server will be forwarded to the desired destination, and any responses will be forwarded back to the origin client (you).
+
+This can be used for things such as DNS queries, and other UDP communicates.
+
+**Connection Steps**
+
+1. Client -(associate)-> Proxy (Tells the proxy to create a UDP relay and bind on a new port)
+2. Client <-(port)- Proxy (Tells the origin client which port it opened and is accepting UDP frame packets on)
+
+At this point the proxy is accepting UDP frames on the specified port.
+
+3. Client --(udp frame) -> Proxy -> Destination (The origin client sends a UDP frame to the proxy on the UDP port, and the proxy then forwards it to the destination specified in the UDP frame.)
+4. Client <--(udp frame) <-- Proxy <-- Destination (The destination client responds to the udp packet sent in #3)
+
+## Usage
+
+The 'associate' command can only be used by creating a new SocksClient instance and listening for the 'established' event.
+
+**Note:** UDP packets relayed through the proxy servers are encompassed in a special Socks UDP frame format. SocksClient.createUDPFrame() and SocksClient.parseUDPFrame() create and parse these special UDP packets.
+
+```typescript
+const dgram = require('dgram');
+const SocksClient = require('socks').SocksClient;
+
+// Create a local UDP socket for sending/receiving packets to/from the proxy.
+const udpSocket = dgram.createSocket('udp4');
+udpSocket.bind();
+
+// Listen for incoming UDP packets from the proxy server.
+udpSocket.on('message', (message, rinfo) => {
+  console.log(SocksClient.parseUDPFrame(message));
+  /*
+  { frameNumber: 0,
+    remoteHost: { host: '8.8.8.8', port: 53 }, // The remote host that replied with a UDP packet
+    data: <Buffer 74 65 73 74 0a> // The data
+  }
+  */
+});
+
+const options = {
+  proxy: {
+    host: '104.131.124.203',
+    port: 1081,
+    type: 5
+  },
+
+  // This should be the ip and port of the expected client that will be sending UDP frames to the newly opened UDP port on the server.
+  // Most SOCKS servers accept 0.0.0.0 as a wildcard address to accept UDP frames from any source.
+  destination: {
+    host: '0.0.0.0',
+    port: 0
+  },
+
+  command: 'associate'
+};
+
+const client = new SocksClient(options);
+
+// This event is fired when the SOCKS server has started listening on a new UDP port for UDP relaying.
+client.on('established', info => {
+  console.log(info);
+  /*
+  {
+    socket: <Socket ...>,
+    remoteHost: { // This is the remote port on the SOCKS proxy server to send UDP frame packets to.
+      host: '104.131.124.203',
+      port: 58232
+    }
+  }
+  */
+
+  // Send a udp frame to 8.8.8.8 on port 53 through the proxy.
+  const packet = SocksClient.createUDPFrame({
+    remoteHost: { host: '8.8.8.8', port: 53 },
+    data: Buffer.from('hello') // A DNS lookup in the real world.
+  });
+
+  // Send packet.
+  udpSocket.send(packet, info.remoteHost.port, info.remoteHost.host);
+});
+
+// SOCKS proxy failed to bind.
+client.on('error', () => {
+  // Handle errors
+});
+```
diff --git a/node_modules/socks/docs/examples/javascript/bindExample.md b/node_modules/socks/docs/examples/javascript/bindExample.md
new file mode 100644
index 0000000..be601d5
--- /dev/null
+++ b/node_modules/socks/docs/examples/javascript/bindExample.md
@@ -0,0 +1,83 @@
+# socks examples
+
+## Example for SOCKS 'bind' command
+
+The bind command tells the SOCKS proxy server to bind and listen on a new TCP port for an incoming connection. It communicates the newly opened port back to the origin client. Once a incoming connection is accepted by the SOCKS proxy server it then communicates the remote host that connected to the SOCKS proxy back through the same initial connection via the origin client.
+
+This can be used for things such as FTP clients which require incoming TCP connections, etc.
+
+**Connection Steps**
+
+1. Client -(bind)-> Proxy    (Tells the proxy to bind to a new port)
+2. Client <-(port)- Proxy    (Tells the origin client which port it opened)
+3. Client2 --> Proxy    (Other client connects to the proxy on this port)
+4. Client <--(client2's host info)  (Proxy tells the origin client who connected to it)
+5. Original connection to the proxy is now a full TCP stream between client (you) and client2.
+6. Client <--> Proxy <--> Client2
+
+
+## Usage
+
+The 'bind' command can only be used by creating a new SocksClient instance and listening for 'bound' and 'established' events.
+
+
+```typescript
+const SocksClient = require('socks').SocksClient;
+
+const options = {
+  proxy: {
+    host: '104.131.124.203',
+    port: 1081,
+    type: 5
+  },
+
+  // This should be the ip and port of the expected client that will connect to the SOCKS proxy server on the newly bound port.
+  // Most SOCKS servers accept 0.0.0.0 as a wildcard address to accept any client.
+  destination: {
+    host: '0.0.0.0',
+    port: 0
+  },
+
+  command: 'bind'
+};
+
+const client = new SocksClient(options);
+
+// This event is fired when the SOCKS server has started listening on a new port for incoming connections.
+client.on('bound', (info) => {
+  console.log(info);
+  /*
+  {
+    socket: <Socket ...>,
+    remoteHost: { // This is the remote ip and port of the SOCKS proxy that is now accepting incoming connections.
+      host: '104.131.124.203',
+      port: 49928
+    }
+  }
+  */
+});
+
+// This event is fired when the SOCKS server has accepted an incoming connection on the newly bound port.
+client.on('established', (info) => {
+  console.log(info);
+  /*
+  {
+    socket: <Socket ...>,
+    remoteHost: { // This is the remote ip and port that connected to the SOCKS proxy on the newly bound port.
+      host: '1.2.3.4',
+      port: 58232
+    }
+  }
+  */
+
+  // At this point info.socket is a regular net.Socket TCP connection between client and client2 (1.2.3.4) (the client which connected to the proxy on the newly bound port.)
+
+  console.log(info.socket);
+  // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy servers)
+});
+
+// SOCKS proxy failed to bind.
+client.on('error', () => {
+  // Handle errors
+});
+```
\ No newline at end of file
diff --git a/node_modules/socks/docs/examples/javascript/connectExample.md b/node_modules/socks/docs/examples/javascript/connectExample.md
new file mode 100644
index 0000000..66244c5
--- /dev/null
+++ b/node_modules/socks/docs/examples/javascript/connectExample.md
@@ -0,0 +1,258 @@
+# socks examples
+
+## Example for SOCKS 'connect' command
+
+The connect command is the most common use-case for a SOCKS proxy. This establishes a direct connection to a destination host through a proxy server. The destination host only has knowledge of the proxy server connecting to it and does not know about the origin client (you).
+
+**Origin Client (you) <-> Proxy Server <-> Destination Server**
+
+In this example, we are connecting to a web server on port 80, and sending a very basic HTTP request to receive a response. It's worth noting that there are many socks-http-agents that can be used with the node http module (and libraries such as request.js) to make this easier. This HTTP request is used as a simple example.
+
+The 'connect' command can be used via the SocksClient.createConnection() factory function as well as by creating a SocksClient instance and using event handlers.
+
+### Using createConnection with async/await
+
+Since SocksClient.createConnection returns a Promise, we can easily use async/await for flow control.
+
+```typescript
+const SocksClient = require('socks').SocksClient;
+
+const options  = {
+  proxy: {
+    host: '104.131.124.203',
+    port: 1081,
+    type: 5
+  },
+
+  destination: {
+    host: 'ip-api.com', // host names are supported with SOCKS v4a and SOCKS v5.
+    port: 80
+  },
+
+  command: 'connect'
+};
+
+async function start() {
+  try {
+    const info = await SocksClient.createConnection(options);
+
+    console.log(info.socket);
+    // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy servers)
+
+    info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
+    info.socket.on('data', (data) => {
+      console.log(data.toString()); // ip-api.com sees that the last proxy (104.131.124.203) is connected to it and not the origin client (you).
+      /*
+        HTTP/1.1 200 OK
+        Access-Control-Allow-Origin: *
+        Content-Type: application/json; charset=utf-8
+        Date: Sun, 24 Dec 2017 03:47:51 GMT
+        Content-Length: 300
+
+        {
+          "as":"AS14061 Digital Ocean, Inc.",
+          "city":"Clifton",
+          "country":"United States",
+          "countryCode":"US",
+          "isp":"Digital Ocean",
+          "lat":40.8326,
+          "lon":-74.1307,
+          "org":"Digital Ocean",
+          "query":"104.131.124.203",
+          "region":"NJ",
+          "regionName":"New Jersey",
+          "status":"success",
+          "timezone":"America/New_York",
+          "zip":"07014"
+        }
+      */
+  } catch (err) {
+    // Handle errors
+  }
+}
+
+start();
+```
+
+### Using createConnection with Promises
+
+```typescript
+const SocksClient = require('socks').SocksClient;
+
+const options  = {
+  proxy: {
+    ipaddress: '104.131.124.203',
+    port: 1081,
+    type: 5
+  },
+
+  destination: {
+    host: 'ip-api.com', // host names are supported with SOCKS v4a and SOCKS v5.
+    port: 80
+  },
+
+  command: 'connect'
+};
+
+SocksClient.createConnection(options)
+.then(info => {
+  console.log(info.socket);
+  // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy servers)
+
+  info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
+  info.socket.on('data', (data) => {
+    console.log(data.toString()); // ip-api.com sees that the last proxy (104.131.124.203) is connected to it and not the origin client (you).
+    /*
+      HTTP/1.1 200 OK
+      Access-Control-Allow-Origin: *
+      Content-Type: application/json; charset=utf-8
+      Date: Sun, 24 Dec 2017 03:47:51 GMT
+      Content-Length: 300
+
+      {
+        "as":"AS14061 Digital Ocean, Inc.",
+        "city":"Clifton",
+        "country":"United States",
+        "countryCode":"US",
+        "isp":"Digital Ocean",
+        "lat":40.8326,
+        "lon":-74.1307,
+        "org":"Digital Ocean",
+        "query":"104.131.124.203",
+        "region":"NJ",
+        "regionName":"New Jersey",
+        "status":"success",
+        "timezone":"America/New_York",
+        "zip":"07014"
+      }
+    */
+})
+.catch(err => {
+  // handle errors
+});
+```
+
+### Using createConnection with callbacks
+
+SocksClient.createConnection() optionally accepts a callback function as a second parameter.
+
+**Note:** If a callback function is provided, a Promise is still returned from the function, but the promise will always resolve regardless of if there was en error. (tldr: Do not mix callbacks and Promises).
+
+```typescript
+const SocksClient = require('socks').SocksClient;
+
+const options  = {
+  proxy: {
+    ipaddress: '104.131.124.203',
+    port: 1081,
+    type: 5
+  },
+
+  destination: {
+    host: 'ip-api.com', // host names are supported with SOCKS v4a and SOCKS v5.
+    port: 80
+  },
+
+  command: 'connect'
+};
+
+SocksClient.createConnection(options, (err, info) => {
+  if (err) {
+    // handle errors
+  } else {
+    console.log(info.socket);
+    // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy servers)
+
+    info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
+    info.socket.on('data', (data) => {
+      console.log(data.toString()); // ip-api.com sees that the last proxy (104.131.124.203) is connected to it and not the origin client (you).
+      /*
+        HTTP/1.1 200 OK
+        Access-Control-Allow-Origin: *
+        Content-Type: application/json; charset=utf-8
+        Date: Sun, 24 Dec 2017 03:47:51 GMT
+        Content-Length: 300
+
+        {
+          "as":"AS14061 Digital Ocean, Inc.",
+          "city":"Clifton",
+          "country":"United States",
+          "countryCode":"US",
+          "isp":"Digital Ocean",
+          "lat":40.8326,
+          "lon":-74.1307,
+          "org":"Digital Ocean",
+          "query":"104.131.124.203",
+          "region":"NJ",
+          "regionName":"New Jersey",
+          "status":"success",
+          "timezone":"America/New_York",
+          "zip":"07014"
+        }
+      */
+  }
+})
+```
+
+### Using event handlers
+
+SocksClient also supports instance creation of a SocksClient. This allows for event based flow control.
+
+```typescript
+const SocksClient = require('socks').SocksClient;
+
+const options  = {
+  proxy: {
+    ipaddress: '104.131.124.203',
+    port: 1081,
+    type: 5
+  },
+
+  destination: {
+    host: 'ip-api.com', // host names are supported with SOCKS v4a and SOCKS v5.
+    port: 80
+  },
+
+  command: 'connect'
+};
+
+const client = new SocksClient(options);
+
+client.on('established', (info) => {
+  console.log(info.socket);
+  // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy servers)
+
+  info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
+  info.socket.on('data', (data) => {
+    console.log(data.toString()); // ip-api.com sees that the last proxy (104.131.124.203) is connected to it and not the origin client (you).
+    /*
+      HTTP/1.1 200 OK
+      Access-Control-Allow-Origin: *
+      Content-Type: application/json; charset=utf-8
+      Date: Sun, 24 Dec 2017 03:47:51 GMT
+      Content-Length: 300
+
+      {
+        "as":"AS14061 Digital Ocean, Inc.",
+        "city":"Clifton",
+        "country":"United States",
+        "countryCode":"US",
+        "isp":"Digital Ocean",
+        "lat":40.8326,
+        "lon":-74.1307,
+        "org":"Digital Ocean",
+        "query":"104.131.124.203",
+        "region":"NJ",
+        "regionName":"New Jersey",
+        "status":"success",
+        "timezone":"America/New_York",
+        "zip":"07014"
+      }
+    */
+});
+
+// Failed to establish proxy connection to destination.
+client.on('error', () => {
+  // Handle errors
+});
+```
\ No newline at end of file
diff --git a/node_modules/socks/docs/examples/typescript/associateExample.md b/node_modules/socks/docs/examples/typescript/associateExample.md
new file mode 100644
index 0000000..e8ca193
--- /dev/null
+++ b/node_modules/socks/docs/examples/typescript/associateExample.md
@@ -0,0 +1,93 @@
+# socks examples
+
+## Example for SOCKS 'associate' command
+
+The associate command tells the SOCKS proxy server to establish a UDP relay. The server binds to a new UDP port and communicates the newly opened port back to the origin client. From here, any SOCKS UDP frame packets sent to this special UDP port on the Proxy server will be forwarded to the desired destination, and any responses will be forwarded back to the origin client (you).
+
+This can be used for things such as DNS queries, and other UDP communicates.
+
+**Connection Steps**
+
+1. Client -(associate)-> Proxy (Tells the proxy to create a UDP relay and bind on a new port)
+2. Client <-(port)- Proxy (Tells the origin client which port it opened and is accepting UDP frame packets on)
+
+At this point the proxy is accepting UDP frames on the specified port.
+
+3. Client --(udp frame) -> Proxy -> Destination (The origin client sends a UDP frame to the proxy on the UDP port, and the proxy then forwards it to the destination specified in the UDP frame.)
+4. Client <--(udp frame) <-- Proxy <-- Destination (The destination client responds to the udp packet sent in #3)
+
+## Usage
+
+The 'associate' command can only be used by creating a new SocksClient instance and listening for the 'established' event.
+
+**Note:** UDP packets relayed through the proxy servers are packaged in a special Socks UDP frame format. SocksClient.createUDPFrame() and SocksClient.parseUDPFrame() create and parse these special UDP packets.
+
+```typescript
+import * as dgram from 'dgram';
+import { SocksClient, SocksClientOptions } from 'socks';
+
+// Create a local UDP socket for sending/receiving packets to/from the proxy.
+const udpSocket = dgram.createSocket('udp4');
+udpSocket.bind();
+
+// Listen for incoming UDP packets from the proxy server.
+udpSocket.on('message', (message, rinfo) => {
+  console.log(SocksClient.parseUDPFrame(message));
+  /*
+  { frameNumber: 0,
+    remoteHost: { host: '8.8.8.8', port: 53 }, // The remote host that replied with a UDP packet
+    data: <Buffer 74 65 73 74 0a> // The data
+  }
+  */
+});
+
+const options: SocksClientOptions = {
+  proxy: {
+    host: '104.131.124.203',
+    port: 1081,
+    type: 5
+  },
+
+  // This should be the ip and port of the expected client that will be sending UDP frames to the newly opened UDP port on the server.
+  // Most SOCKS servers accept 0.0.0.0 as a wildcard address to accept UDP frames from any source.
+  destination: {
+    host: '0.0.0.0',
+    port: 0
+  },
+
+  command: 'associate'
+};
+
+const client = new SocksClient(options);
+
+// This event is fired when the SOCKS server has started listening on a new UDP port for UDP relaying.
+client.on('established', info => {
+  console.log(info);
+  /*
+  {
+    socket: <Socket ...>,
+    remoteHost: { // This is the remote port on the SOCKS proxy server to send UDP frame packets to.
+      host: '104.131.124.203',
+      port: 58232
+    }
+  }
+  */
+
+  // Send a udp frame to 8.8.8.8 on port 53 through the proxy.
+  const packet = SocksClient.createUDPFrame({
+    remoteHost: { host: '8.8.8.8', port: 53 },
+    data: Buffer.from('hello') // A DNS lookup in the real world.
+  });
+
+  // Send packet.
+  udpSocket.send(packet, info.remoteHost.port, info.remoteHost.host);
+});
+
+// SOCKS proxy failed to bind.
+client.on('error', () => {
+  // Handle errors
+});
+
+// Start connection
+client.connect();
+```
diff --git a/node_modules/socks/docs/examples/typescript/bindExample.md b/node_modules/socks/docs/examples/typescript/bindExample.md
new file mode 100644
index 0000000..6b7607d
--- /dev/null
+++ b/node_modules/socks/docs/examples/typescript/bindExample.md
@@ -0,0 +1,86 @@
+# socks examples
+
+## Example for SOCKS 'bind' command
+
+The bind command tells the SOCKS proxy server to bind and listen on a new TCP port for an incoming connection. It communicates the newly opened port back to the origin client. Once a incoming connection is accepted by the SOCKS proxy server it then communicates the remote host that connected to the SOCKS proxy back through the same initial connection via the origin client.
+
+This can be used for things such as FTP clients which require incoming TCP connections, etc.
+
+**Connection Steps**
+
+1. Client -(bind)-> Proxy    (Tells the proxy to bind to a new port)
+2. Client <-(port)- Proxy    (Tells the origin client which port it opened)
+3. Client2 --> Proxy    (Other client connects to the proxy on this port)
+4. Client <--(client2's host info)  (Proxy tells the origin client who connected to it)
+5. Original connection to the proxy is now a full TCP stream between client (you) and client2.
+6. Client <--> Proxy <--> Client2
+
+
+## Usage
+
+The 'bind' command can only be used by creating a new SocksClient instance and listening for 'bound' and 'established' events.
+
+
+```typescript
+import { SocksClient, SocksClientOptions } from 'socks';
+
+const options: SocksClientOptions = {
+  proxy: {
+    host: '104.131.124.203',
+    port: 1081,
+    type: 5
+  },
+
+  // This should be the ip and port of the expected client that will connect to the SOCKS proxy server on the newly bound port.
+  // Most SOCKS servers accept 0.0.0.0 as a wildcard address to accept any client.
+  destination: {
+    host: '0.0.0.0',
+    port: 0
+  },
+
+  command: 'bind'
+};
+
+const client = new SocksClient(options);
+
+// This event is fired when the SOCKS server has started listening on a new port for incoming connections.
+client.on('bound', (info) => {
+  console.log(info);
+  /*
+  {
+    socket: <Socket ...>,
+    remoteHost: { // This is the remote ip and port of the SOCKS proxy that is now accepting incoming connections.
+      host: '104.131.124.203',
+      port: 49928
+    }
+  }
+  */
+});
+
+// This event is fired when the SOCKS server has accepted an incoming connection on the newly bound port.
+client.on('established', (info) => {
+  console.log(info);
+  /*
+  {
+    socket: <Socket ...>,
+    remoteHost: { // This is the remote ip and port that connected to the SOCKS proxy on the newly bound port.
+      host: '1.2.3.4',
+      port: 58232
+    }
+  }
+  */
+
+  // At this point info.socket is a regular net.Socket TCP connection between client and client2 (1.2.3.4) (the client which connected to the proxy on the newly bound port.)
+
+  console.log(info.socket);
+  // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy servers)
+});
+
+// SOCKS proxy failed to bind.
+client.on('error', () => {
+  // Handle errors
+});
+
+// Start connection
+client.connect();
+```
\ No newline at end of file
diff --git a/node_modules/socks/docs/examples/typescript/connectExample.md b/node_modules/socks/docs/examples/typescript/connectExample.md
new file mode 100644
index 0000000..30606d0
--- /dev/null
+++ b/node_modules/socks/docs/examples/typescript/connectExample.md
@@ -0,0 +1,265 @@
+# socks examples
+
+## Example for SOCKS 'connect' command
+
+The connect command is the most common use-case for a SOCKS proxy. This establishes a direct connection to a destination host through a proxy server. The destination host only has knowledge of the proxy server connecting to it and does not know about the origin client (you).
+
+**Origin Client (you) <-> Proxy Server <-> Destination Server**
+
+In this example, we are connecting to a web server on port 80, and sending a very basic HTTP request to receive a response. It's worth noting that there are many socks-http-agents that can be used with the node http module (and libraries such as request.js) to make this easier. This HTTP request is used as a simple example.
+
+The 'connect' command can be used via the SocksClient.createConnection() factory function as well as by creating a SocksClient instance and using event handlers.
+
+### Using createConnection with async/await
+
+Since SocksClient.createConnection returns a Promise, we can easily use async/await for flow control.
+
+```typescript
+import { SocksClient, SocksClientOptions } from 'socks';
+
+const options: SocksClientOptions = {
+  proxy: {
+    host: '104.131.124.203',
+    port: 1081,
+    type: 5
+  },
+
+  destination: {
+    host: 'ip-api.com', // host names are supported with SOCKS v4a and SOCKS v5.
+    port: 80
+  },
+
+  command: 'connect'
+};
+
+async function start() {
+  try {
+    const info = await SocksClient.createConnection(options);
+
+    console.log(info.socket);
+    // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy servers)
+
+    info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
+    info.socket.on('data', (data) => {
+      console.log(data.toString()); // ip-api.com sees that the last proxy (104.131.124.203) is connected to it and not the origin client (you).
+      /*
+        HTTP/1.1 200 OK
+        Access-Control-Allow-Origin: *
+        Content-Type: application/json; charset=utf-8
+        Date: Sun, 24 Dec 2017 03:47:51 GMT
+        Content-Length: 300
+
+        {
+          "as":"AS14061 Digital Ocean, Inc.",
+          "city":"Clifton",
+          "country":"United States",
+          "countryCode":"US",
+          "isp":"Digital Ocean",
+          "lat":40.8326,
+          "lon":-74.1307,
+          "org":"Digital Ocean",
+          "query":"104.131.124.203",
+          "region":"NJ",
+          "regionName":"New Jersey",
+          "status":"success",
+          "timezone":"America/New_York",
+          "zip":"07014"
+        }
+      */
+    });
+  } catch (err) {
+    // Handle errors
+  }
+}
+
+start();
+```
+
+### Using createConnection with Promises
+
+```typescript
+import { SocksClient, SocksClientOptions } from 'socks';
+
+const options: SocksClientOptions = {
+  proxy: {
+    ipaddress: '104.131.124.203',
+    port: 1081,
+    type: 5
+  },
+
+  destination: {
+    host: 'ip-api.com', // host names are supported with SOCKS v4a and SOCKS v5.
+    port: 80
+  },
+
+  command: 'connect'
+};
+
+SocksClient.createConnection(options)
+.then(info => {
+  console.log(info.socket);
+  // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy servers)
+
+  info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
+  info.socket.on('data', (data) => {
+    console.log(data.toString()); // ip-api.com sees that the last proxy (104.131.124.203) is connected to it and not the origin client (you).
+    /*
+      HTTP/1.1 200 OK
+      Access-Control-Allow-Origin: *
+      Content-Type: application/json; charset=utf-8
+      Date: Sun, 24 Dec 2017 03:47:51 GMT
+      Content-Length: 300
+
+      {
+        "as":"AS14061 Digital Ocean, Inc.",
+        "city":"Clifton",
+        "country":"United States",
+        "countryCode":"US",
+        "isp":"Digital Ocean",
+        "lat":40.8326,
+        "lon":-74.1307,
+        "org":"Digital Ocean",
+        "query":"104.131.124.203",
+        "region":"NJ",
+        "regionName":"New Jersey",
+        "status":"success",
+        "timezone":"America/New_York",
+        "zip":"07014"
+      }
+    */
+  });
+})
+.catch(err => {
+  // handle errors
+});
+```
+
+### Using createConnection with callbacks
+
+SocksClient.createConnection() optionally accepts a callback function as a second parameter.
+
+**Note:** If a callback function is provided, a Promise is still returned from the function, but the promise will always resolve regardless of if there was en error. (tldr: Do not mix callbacks and Promises).
+
+```typescript
+import { SocksClient, SocksClientOptions } from 'socks';
+
+const options: SocksClientOptions = {
+  proxy: {
+    ipaddress: '104.131.124.203',
+    port: 1081,
+    type: 5
+  },
+
+  destination: {
+    host: 'ip-api.com', // host names are supported with SOCKS v4a and SOCKS v5.
+    port: 80
+  },
+
+  command: 'connect'
+};
+
+SocksClient.createConnection(options, (err, info) => {
+  if (err) {
+    // handle errors
+  } else {
+    console.log(info.socket);
+    // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy servers)
+
+    info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
+    info.socket.on('data', (data) => {
+      console.log(data.toString()); // ip-api.com sees that the last proxy (104.131.124.203) is connected to it and not the origin client (you).
+      /*
+        HTTP/1.1 200 OK
+        Access-Control-Allow-Origin: *
+        Content-Type: application/json; charset=utf-8
+        Date: Sun, 24 Dec 2017 03:47:51 GMT
+        Content-Length: 300
+
+        {
+          "as":"AS14061 Digital Ocean, Inc.",
+          "city":"Clifton",
+          "country":"United States",
+          "countryCode":"US",
+          "isp":"Digital Ocean",
+          "lat":40.8326,
+          "lon":-74.1307,
+          "org":"Digital Ocean",
+          "query":"104.131.124.203",
+          "region":"NJ",
+          "regionName":"New Jersey",
+          "status":"success",
+          "timezone":"America/New_York",
+          "zip":"07014"
+        }
+      */
+    });
+  }
+})
+```
+
+### Using event handlers
+
+SocksClient also supports instance creation of a SocksClient. This allows for event based flow control.
+
+```typescript
+import { SocksClient, SocksClientOptions } from 'socks';
+
+const options: SocksClientOptions = {
+  proxy: {
+    ipaddress: '104.131.124.203',
+    port: 1081,
+    type: 5
+  },
+
+  destination: {
+    host: 'ip-api.com', // host names are supported with SOCKS v4a and SOCKS v5.
+    port: 80
+  },
+
+  command: 'connect'
+};
+
+const client = new SocksClient(options);
+
+client.on('established', (info) => {
+  console.log(info.socket);
+  // <Socket ...>  (this is a raw net.Socket that is established to the destination host through the given proxy servers)
+
+  info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
+  info.socket.on('data', (data) => {
+    console.log(data.toString()); // ip-api.com sees that the last proxy (104.131.124.203) is connected to it and not the origin client (you).
+    /*
+      HTTP/1.1 200 OK
+      Access-Control-Allow-Origin: *
+      Content-Type: application/json; charset=utf-8
+      Date: Sun, 24 Dec 2017 03:47:51 GMT
+      Content-Length: 300
+
+      {
+        "as":"AS14061 Digital Ocean, Inc.",
+        "city":"Clifton",
+        "country":"United States",
+        "countryCode":"US",
+        "isp":"Digital Ocean",
+        "lat":40.8326,
+        "lon":-74.1307,
+        "org":"Digital Ocean",
+        "query":"104.131.124.203",
+        "region":"NJ",
+        "regionName":"New Jersey",
+        "status":"success",
+        "timezone":"America/New_York",
+        "zip":"07014"
+      }
+    */
+  });
+});
+
+// Failed to establish proxy connection to destination.
+client.on('error', () => {
+  // Handle errors
+});
+
+// Start connection
+client.connect();
+```
\ No newline at end of file
diff --git a/node_modules/socks/docs/index.md b/node_modules/socks/docs/index.md
new file mode 100644
index 0000000..3eb1d71
--- /dev/null
+++ b/node_modules/socks/docs/index.md
@@ -0,0 +1,5 @@
+# Documentation
+
+- [API Reference](https://github.com/JoshGlazebrook/socks#api-reference)
+
+- [Code Examples](./examples/index.md)
\ No newline at end of file
diff --git a/node_modules/socks/docs/migratingFromV1.md b/node_modules/socks/docs/migratingFromV1.md
new file mode 100644
index 0000000..dd00838
--- /dev/null
+++ b/node_modules/socks/docs/migratingFromV1.md
@@ -0,0 +1,86 @@
+# socks
+
+## Migrating from v1
+
+For the most part, migrating from v1 takes minimal effort as v2 still supports factory creation of proxy connections with callback support.
+
+### Notable breaking changes
+
+- In an options object, the proxy 'command' is now required and does not default to 'connect'.
+- **In an options object, 'target' is now known as 'destination'.**
+- Sockets are no longer paused after a SOCKS connection is made, so socket.resume() is no longer required. (Please be sure to attach data handlers immediately to the Socket to avoid losing data).
+- In v2, only the 'connect' command is supported via the factory SocksClient.createConnection function. (BIND and ASSOCIATE must be used with a SocksClient instance via event handlers).
+- In v2, the factory SocksClient.createConnection function callback is called with a single object rather than separate socket and info object.
+- A SOCKS http/https agent is no longer bundled into the library.
+
+For informational purposes, here is the original getting started example from v1 converted to work with v2.
+
+### Before (v1)
+
+```javascript
+var Socks = require('socks');
+
+var options = {
+    proxy: {
+        ipaddress: "202.101.228.108",
+        port: 1080,
+        type: 5
+    },
+    target: {
+        host: "google.com",
+        port: 80
+    },
+    command: 'connect'
+};
+
+Socks.createConnection(options, function(err, socket, info) {
+    if (err)
+        console.log(err);
+    else {
+        socket.write("GET / HTTP/1.1\nHost: google.com\n\n");
+        socket.on('data', function(data) {
+            console.log(data.length);
+            console.log(data);
+        });
+
+        // PLEASE NOTE: sockets need to be resumed before any data will come in or out as they are paused right before this callback is fired.
+        socket.resume();
+
+        // 569
+        // <Buffer 48 54 54 50 2f 31 2e 31 20 33 30 31 20 4d 6f 76 65 64 20 50 65...
+    }
+});
+```
+
+### After (v2)
+```javascript
+const SocksClient = require('socks').SocksClient;
+
+let options = {
+    proxy: {
+        ipaddress: "202.101.228.108",
+        port: 1080,
+        type: 5
+    },
+    destination: {
+        host: "google.com",
+        port: 80
+    },
+    command: 'connect'
+};
+
+SocksClient.createConnection(options, function(err, result) {
+    if (err)
+        console.log(err);
+    else {
+        result.socket.write("GET / HTTP/1.1\nHost: google.com\n\n");
+        result.socket.on('data', function(data) {
+            console.log(data.length);
+            console.log(data);
+        });
+
+        // 569
+        // <Buffer 48 54 54 50 2f 31 2e 31 20 33 30 31 20 4d 6f 76 65 64 20 50 65...
+    }
+});
+```
\ No newline at end of file
diff --git a/node_modules/socks/package.json b/node_modules/socks/package.json
new file mode 100644
index 0000000..0f5054b
--- /dev/null
+++ b/node_modules/socks/package.json
@@ -0,0 +1,58 @@
+{
+  "name": "socks",
+  "private": false,
+  "version": "2.7.1",
+  "description": "Fully featured SOCKS proxy client supporting SOCKSv4, SOCKSv4a, and SOCKSv5. Includes Bind and Associate functionality.",
+  "main": "build/index.js",
+  "typings": "typings/index.d.ts",
+  "homepage": "https://github.com/JoshGlazebrook/socks/",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/JoshGlazebrook/socks.git"
+  },
+  "bugs": {
+    "url": "https://github.com/JoshGlazebrook/socks/issues"
+  },
+  "keywords": [
+    "socks",
+    "proxy",
+    "tor",
+    "socks 4",
+    "socks 5",
+    "socks4",
+    "socks5"
+  ],
+  "engines": {
+    "node": ">= 10.13.0",
+    "npm": ">= 3.0.0"
+  },
+  "author": "Josh Glazebrook",
+  "contributors": [
+    "castorw"
+  ],
+  "license": "MIT",
+  "readmeFilename": "README.md",
+  "devDependencies": {
+    "@types/ip": "1.1.0",
+    "@types/mocha": "^9.1.1",
+    "@types/node": "^18.0.6",
+    "@typescript-eslint/eslint-plugin": "^5.30.6",
+    "@typescript-eslint/parser": "^5.30.6",
+    "eslint": "^8.20.0",
+    "mocha": "^10.0.0",
+    "prettier": "^2.7.1",
+    "ts-node": "^10.9.1",
+    "typescript": "^4.7.4"
+  },
+  "dependencies": {
+    "ip": "^2.0.0",
+    "smart-buffer": "^4.2.0"
+  },
+  "scripts": {
+    "prepublish": "npm install -g typescript && npm run build",
+    "test": "NODE_ENV=test mocha --recursive --require ts-node/register test/**/*.ts",
+    "prettier": "prettier --write ./src/**/*.ts --config .prettierrc.yaml",
+    "lint": "eslint 'src/**/*.ts'",
+    "build": "rm -rf build typings && prettier --write ./src/**/*.ts --config .prettierrc.yaml && tsc -p ."
+  }
+}
diff --git a/node_modules/socks/typings/client/socksclient.d.ts b/node_modules/socks/typings/client/socksclient.d.ts
new file mode 100644
index 0000000..b886d95
--- /dev/null
+++ b/node_modules/socks/typings/client/socksclient.d.ts
@@ -0,0 +1,162 @@
+/// <reference types="node" />
+/// <reference types="node" />
+/// <reference types="node" />
+import { EventEmitter } from 'events';
+import { SocksClientOptions, SocksClientChainOptions, SocksRemoteHost, SocksProxy, SocksClientBoundEvent, SocksClientEstablishedEvent, SocksUDPFrameDetails } from '../common/constants';
+import { SocksClientError } from '../common/util';
+import { Duplex } from 'stream';
+declare interface SocksClient {
+    on(event: 'error', listener: (err: SocksClientError) => void): this;
+    on(event: 'bound', listener: (info: SocksClientBoundEvent) => void): this;
+    on(event: 'established', listener: (info: SocksClientEstablishedEvent) => void): this;
+    once(event: string, listener: (...args: unknown[]) => void): this;
+    once(event: 'error', listener: (err: SocksClientError) => void): this;
+    once(event: 'bound', listener: (info: SocksClientBoundEvent) => void): this;
+    once(event: 'established', listener: (info: SocksClientEstablishedEvent) => void): this;
+    emit(event: string | symbol, ...args: unknown[]): boolean;
+    emit(event: 'error', err: SocksClientError): boolean;
+    emit(event: 'bound', info: SocksClientBoundEvent): boolean;
+    emit(event: 'established', info: SocksClientEstablishedEvent): boolean;
+}
+declare class SocksClient extends EventEmitter implements SocksClient {
+    private options;
+    private socket;
+    private state;
+    private receiveBuffer;
+    private nextRequiredPacketBufferSize;
+    private socks5ChosenAuthType;
+    private onDataReceived;
+    private onClose;
+    private onError;
+    private onConnect;
+    constructor(options: SocksClientOptions);
+    /**
+     * Creates a new SOCKS connection.
+     *
+     * Note: Supports callbacks and promises. Only supports the connect command.
+     * @param options { SocksClientOptions } Options.
+     * @param callback { Function } An optional callback function.
+     * @returns { Promise }
+     */
+    static createConnection(options: SocksClientOptions, callback?: (error: Error | null, info?: SocksClientEstablishedEvent) => void): Promise<SocksClientEstablishedEvent>;
+    /**
+     * Creates a new SOCKS connection chain to a destination host through 2 or more SOCKS proxies.
+     *
+     * Note: Supports callbacks and promises. Only supports the connect method.
+     * Note: Implemented via createConnection() factory function.
+     * @param options { SocksClientChainOptions } Options
+     * @param callback { Function } An optional callback function.
+     * @returns { Promise }
+     */
+    static createConnectionChain(options: SocksClientChainOptions, callback?: (error: Error | null, socket?: SocksClientEstablishedEvent) => void): Promise<SocksClientEstablishedEvent>;
+    /**
+     * Creates a SOCKS UDP Frame.
+     * @param options
+     */
+    static createUDPFrame(options: SocksUDPFrameDetails): Buffer;
+    /**
+     * Parses a SOCKS UDP frame.
+     * @param data
+     */
+    static parseUDPFrame(data: Buffer): SocksUDPFrameDetails;
+    /**
+     * Internal state setter. If the SocksClient is in an error state, it cannot be changed to a non error state.
+     */
+    private setState;
+    /**
+     * Starts the connection establishment to the proxy and destination.
+     * @param existingSocket Connected socket to use instead of creating a new one (internal use).
+     */
+    connect(existingSocket?: Duplex): void;
+    private getSocketOptions;
+    /**
+     * Handles internal Socks timeout callback.
+     * Note: If the Socks client is not BoundWaitingForConnection or Established, the connection will be closed.
+     */
+    private onEstablishedTimeout;
+    /**
+     * Handles Socket connect event.
+     */
+    private onConnectHandler;
+    /**
+     * Handles Socket data event.
+     * @param data
+     */
+    private onDataReceivedHandler;
+    /**
+     * Handles processing of the data we have received.
+     */
+    private processData;
+    /**
+     * Handles Socket close event.
+     * @param had_error
+     */
+    private onCloseHandler;
+    /**
+     * Handles Socket error event.
+     * @param err
+     */
+    private onErrorHandler;
+    /**
+     * Removes internal event listeners on the underlying Socket.
+     */
+    private removeInternalSocketHandlers;
+    /**
+     * Closes and destroys the underlying Socket. Emits an error event.
+     * @param err { String } An error string to include in error event.
+     */
+    private closeSocket;
+    /**
+     * Sends initial Socks v4 handshake request.
+     */
+    private sendSocks4InitialHandshake;
+    /**
+     * Handles Socks v4 handshake response.
+     * @param data
+     */
+    private handleSocks4FinalHandshakeResponse;
+    /**
+     * Handles Socks v4 incoming connection request (BIND)
+     * @param data
+     */
+    private handleSocks4IncomingConnectionResponse;
+    /**
+     * Sends initial Socks v5 handshake request.
+     */
+    private sendSocks5InitialHandshake;
+    /**
+     * Handles initial Socks v5 handshake response.
+     * @param data
+     */
+    private handleInitialSocks5HandshakeResponse;
+    /**
+     * Sends Socks v5 user & password auth handshake.
+     *
+     * Note: No auth and user/pass are currently supported.
+     */
+    private sendSocks5UserPassAuthentication;
+    private sendSocks5CustomAuthentication;
+    private handleSocks5CustomAuthHandshakeResponse;
+    private handleSocks5AuthenticationNoAuthHandshakeResponse;
+    private handleSocks5AuthenticationUserPassHandshakeResponse;
+    /**
+     * Handles Socks v5 auth handshake response.
+     * @param data
+     */
+    private handleInitialSocks5AuthenticationHandshakeResponse;
+    /**
+     * Sends Socks v5 final handshake request.
+     */
+    private sendSocks5CommandRequest;
+    /**
+     * Handles Socks v5 final handshake response.
+     * @param data
+     */
+    private handleSocks5FinalHandshakeResponse;
+    /**
+     * Handles Socks v5 incoming connection request (BIND).
+     */
+    private handleSocks5IncomingConnectionResponse;
+    get socksClientOptions(): SocksClientOptions;
+}
+export { SocksClient, SocksClientOptions, SocksClientChainOptions, SocksClientError, SocksRemoteHost, SocksProxy, SocksUDPFrameDetails, };
diff --git a/node_modules/socks/typings/common/constants.d.ts b/node_modules/socks/typings/common/constants.d.ts
new file mode 100644
index 0000000..32a5705
--- /dev/null
+++ b/node_modules/socks/typings/common/constants.d.ts
@@ -0,0 +1,152 @@
+/// <reference types="node" />
+/// <reference types="node" />
+/// <reference types="node" />
+import { Duplex } from 'stream';
+import { Socket, SocketConnectOpts } from 'net';
+import { RequireOnlyOne } from './util';
+declare const DEFAULT_TIMEOUT = 30000;
+declare type SocksProxyType = 4 | 5;
+declare const ERRORS: {
+    InvalidSocksCommand: string;
+    InvalidSocksCommandForOperation: string;
+    InvalidSocksCommandChain: string;
+    InvalidSocksClientOptionsDestination: string;
+    InvalidSocksClientOptionsExistingSocket: string;
+    InvalidSocksClientOptionsProxy: string;
+    InvalidSocksClientOptionsTimeout: string;
+    InvalidSocksClientOptionsProxiesLength: string;
+    InvalidSocksClientOptionsCustomAuthRange: string;
+    InvalidSocksClientOptionsCustomAuthOptions: string;
+    NegotiationError: string;
+    SocketClosed: string;
+    ProxyConnectionTimedOut: string;
+    InternalError: string;
+    InvalidSocks4HandshakeResponse: string;
+    Socks4ProxyRejectedConnection: string;
+    InvalidSocks4IncomingConnectionResponse: string;
+    Socks4ProxyRejectedIncomingBoundConnection: string;
+    InvalidSocks5InitialHandshakeResponse: string;
+    InvalidSocks5IntiailHandshakeSocksVersion: string;
+    InvalidSocks5InitialHandshakeNoAcceptedAuthType: string;
+    InvalidSocks5InitialHandshakeUnknownAuthType: string;
+    Socks5AuthenticationFailed: string;
+    InvalidSocks5FinalHandshake: string;
+    InvalidSocks5FinalHandshakeRejected: string;
+    InvalidSocks5IncomingConnectionResponse: string;
+    Socks5ProxyRejectedIncomingBoundConnection: string;
+};
+declare const SOCKS_INCOMING_PACKET_SIZES: {
+    Socks5InitialHandshakeResponse: number;
+    Socks5UserPassAuthenticationResponse: number;
+    Socks5ResponseHeader: number;
+    Socks5ResponseIPv4: number;
+    Socks5ResponseIPv6: number;
+    Socks5ResponseHostname: (hostNameLength: number) => number;
+    Socks4Response: number;
+};
+declare type SocksCommandOption = 'connect' | 'bind' | 'associate';
+declare enum SocksCommand {
+    connect = 1,
+    bind = 2,
+    associate = 3
+}
+declare enum Socks4Response {
+    Granted = 90,
+    Failed = 91,
+    Rejected = 92,
+    RejectedIdent = 93
+}
+declare enum Socks5Auth {
+    NoAuth = 0,
+    GSSApi = 1,
+    UserPass = 2
+}
+declare const SOCKS5_CUSTOM_AUTH_START = 128;
+declare const SOCKS5_CUSTOM_AUTH_END = 254;
+declare const SOCKS5_NO_ACCEPTABLE_AUTH = 255;
+declare enum Socks5Response {
+    Granted = 0,
+    Failure = 1,
+    NotAllowed = 2,
+    NetworkUnreachable = 3,
+    HostUnreachable = 4,
+    ConnectionRefused = 5,
+    TTLExpired = 6,
+    CommandNotSupported = 7,
+    AddressNotSupported = 8
+}
+declare enum Socks5HostType {
+    IPv4 = 1,
+    Hostname = 3,
+    IPv6 = 4
+}
+declare enum SocksClientState {
+    Created = 0,
+    Connecting = 1,
+    Connected = 2,
+    SentInitialHandshake = 3,
+    ReceivedInitialHandshakeResponse = 4,
+    SentAuthentication = 5,
+    ReceivedAuthenticationResponse = 6,
+    SentFinalHandshake = 7,
+    ReceivedFinalResponse = 8,
+    BoundWaitingForConnection = 9,
+    Established = 10,
+    Disconnected = 11,
+    Error = 99
+}
+/**
+ * Represents a SocksProxy
+ */
+declare type SocksProxy = RequireOnlyOne<{
+    ipaddress?: string;
+    host?: string;
+    port: number;
+    type: SocksProxyType;
+    userId?: string;
+    password?: string;
+    custom_auth_method?: number;
+    custom_auth_request_handler?: () => Promise<Buffer>;
+    custom_auth_response_size?: number;
+    custom_auth_response_handler?: (data: Buffer) => Promise<boolean>;
+}, 'host' | 'ipaddress'>;
+/**
+ * Represents a remote host
+ */
+interface SocksRemoteHost {
+    host: string;
+    port: number;
+}
+/**
+ * SocksClient connection options.
+ */
+interface SocksClientOptions {
+    command: SocksCommandOption;
+    destination: SocksRemoteHost;
+    proxy: SocksProxy;
+    timeout?: number;
+    existing_socket?: Duplex;
+    set_tcp_nodelay?: boolean;
+    socket_options?: SocketConnectOpts;
+}
+/**
+ * SocksClient chain connection options.
+ */
+interface SocksClientChainOptions {
+    command: 'connect';
+    destination: SocksRemoteHost;
+    proxies: SocksProxy[];
+    timeout?: number;
+    randomizeChain?: false;
+}
+interface SocksClientEstablishedEvent {
+    socket: Socket;
+    remoteHost?: SocksRemoteHost;
+}
+declare type SocksClientBoundEvent = SocksClientEstablishedEvent;
+interface SocksUDPFrameDetails {
+    frameNumber?: number;
+    remoteHost: SocksRemoteHost;
+    data: Buffer;
+}
+export { DEFAULT_TIMEOUT, ERRORS, SocksProxyType, SocksCommand, Socks4Response, Socks5Auth, Socks5HostType, Socks5Response, SocksClientState, SocksProxy, SocksRemoteHost, SocksCommandOption, SocksClientOptions, SocksClientChainOptions, SocksClientEstablishedEvent, SocksClientBoundEvent, SocksUDPFrameDetails, SOCKS_INCOMING_PACKET_SIZES, SOCKS5_CUSTOM_AUTH_START, SOCKS5_CUSTOM_AUTH_END, SOCKS5_NO_ACCEPTABLE_AUTH, };
diff --git a/node_modules/socks/typings/common/helpers.d.ts b/node_modules/socks/typings/common/helpers.d.ts
new file mode 100644
index 0000000..8c3a106
--- /dev/null
+++ b/node_modules/socks/typings/common/helpers.d.ts
@@ -0,0 +1,13 @@
+import { SocksClientOptions, SocksClientChainOptions } from '../client/socksclient';
+/**
+ * Validates the provided SocksClientOptions
+ * @param options { SocksClientOptions }
+ * @param acceptedCommands { string[] } A list of accepted SocksProxy commands.
+ */
+declare function validateSocksClientOptions(options: SocksClientOptions, acceptedCommands?: string[]): void;
+/**
+ * Validates the SocksClientChainOptions
+ * @param options { SocksClientChainOptions }
+ */
+declare function validateSocksClientChainOptions(options: SocksClientChainOptions): void;
+export { validateSocksClientOptions, validateSocksClientChainOptions };
diff --git a/node_modules/socks/typings/common/receivebuffer.d.ts b/node_modules/socks/typings/common/receivebuffer.d.ts
new file mode 100644
index 0000000..756e98b
--- /dev/null
+++ b/node_modules/socks/typings/common/receivebuffer.d.ts
@@ -0,0 +1,12 @@
+/// <reference types="node" />
+declare class ReceiveBuffer {
+    private buffer;
+    private offset;
+    private originalSize;
+    constructor(size?: number);
+    get length(): number;
+    append(data: Buffer): number;
+    peek(length: number): Buffer;
+    get(length: number): Buffer;
+}
+export { ReceiveBuffer };
diff --git a/node_modules/socks/typings/common/util.d.ts b/node_modules/socks/typings/common/util.d.ts
new file mode 100644
index 0000000..83f20e7
--- /dev/null
+++ b/node_modules/socks/typings/common/util.d.ts
@@ -0,0 +1,17 @@
+import { SocksClientOptions, SocksClientChainOptions } from './constants';
+/**
+ * Error wrapper for SocksClient
+ */
+declare class SocksClientError extends Error {
+    options: SocksClientOptions | SocksClientChainOptions;
+    constructor(message: string, options: SocksClientOptions | SocksClientChainOptions);
+}
+/**
+ * Shuffles a given array.
+ * @param array The array to shuffle.
+ */
+declare function shuffleArray(array: unknown[]): void;
+declare type RequireOnlyOne<T, Keys extends keyof T = keyof T> = Pick<T, Exclude<keyof T, Keys>> & {
+    [K in Keys]?: Required<Pick<T, K>> & Partial<Record<Exclude<Keys, K>, undefined>>;
+}[Keys];
+export { RequireOnlyOne, SocksClientError, shuffleArray };
diff --git a/node_modules/socks/typings/index.d.ts b/node_modules/socks/typings/index.d.ts
new file mode 100644
index 0000000..fbf9006
--- /dev/null
+++ b/node_modules/socks/typings/index.d.ts
@@ -0,0 +1 @@
+export * from './client/socksclient';
diff --git a/node_modules/sqlite/CHANGELOG.md b/node_modules/sqlite/CHANGELOG.md
new file mode 100644
index 0000000..4340fd0
--- /dev/null
+++ b/node_modules/sqlite/CHANGELOG.md
@@ -0,0 +1,437 @@
+## 5.0.1 - Tue Jul 11 2023 17:36:14
+
+**Contributor:** Aleksandr Ananin
+
+- Remove `params` parameter from `exec` function (#173)
+
+## 4.2.1 - Tue May 23 2023 00:58:29
+
+**Contributor:** Blake Embrey
+
+- Support all SQL template libraries (#172)
+
+* Support all SQL template libraries
+
+* Remove sql-template-strings from lib
+
+## 4.2.0 (4.1.3) - Mon May 01 2023 10:52:06
+
+**Contributor:** Andarist
+
+- move types condition to the front (#171)
+
+Package should have published under `4.2.0` but was also published as `4.1.3`.
+
+Downgrade to `4.1.2` if you are having issues and raise an issue.
+
+## 4.1.2 - Tue Jul 19 2022 16:51:14
+
+**Contributor:** rinsuki
+
+- Support TS 4.7+ node16/next module mode (#164)
+
+## 4.1.1 - Sun Apr 24 2022 00:00:52
+
+**Contributor:** Theo Gravity
+
+- Have native sqlite errors contain stack traces (#162)
+
+This ensures that errors thrown from the sqlite driver now
+have stack traces and are of an `Error` type.
+
+Thanks to @fresheneesz for initial troubleshooting and initial
+code to help fix the issue.
+
+This is a minor level version update as to not break implementations
+that may handle errors in their own way prior to this fix.
+
+## 4.0.25 - Mon Mar 07 2022 08:50:06
+
+**Contributor:** Theo Gravity
+
+- Update packages, fix tests for latest jest (#159)
+
+* Update packages, fix tests for latest jest
+
+* Update node version on ci
+
+## 4.0.24 - Sun Mar 06 2022 20:12:24
+
+**Contributor:** fresheneesz
+
+- Updating exec to support passed in parameters like the other functions do. (#155)
+
+## 4.0.23 - Mon May 24 2021 21:17:44
+
+**Contributor:** dependabot[bot]
+
+- Bump browserslist from 4.16.3 to 4.16.6 (#145)
+
+Bumps [browserslist](https://github.com/browserslist/browserslist) from 4.16.3 to 4.16.6.
+- [Release notes](https://github.com/browserslist/browserslist/releases)
+- [Changelog](https://github.com/browserslist/browserslist/blob/main/CHANGELOG.md)
+- [Commits](https://github.com/browserslist/browserslist/compare/4.16.3...4.16.6)
+
+Signed-off-by: dependabot[bot] <support@github.com>
+
+Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
+
+## 4.0.22 - Sun May 09 2021 19:59:28
+
+**Contributor:** dependabot[bot]
+
+- Bump handlebars from 4.7.6 to 4.7.7 (#141)
+
+Bumps [handlebars](https://github.com/wycats/handlebars.js) from 4.7.6 to 4.7.7.
+- [Release notes](https://github.com/wycats/handlebars.js/releases)
+- [Changelog](https://github.com/handlebars-lang/handlebars.js/blob/master/release-notes.md)
+- [Commits](https://github.com/wycats/handlebars.js/compare/v4.7.6...v4.7.7)
+
+Signed-off-by: dependabot[bot] <support@github.com>
+
+Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
+
+## 4.0.21 - Wed Mar 31 2021 21:22:42
+
+**Contributor:** Theo Gravity
+
+- Update packages to latest
+
+## 4.0.20 - Wed Mar 31 2021 20:54:37
+
+**Contributor:** dependabot[bot]
+
+- Bump y18n from 4.0.0 to 4.0.1 (#139)
+
+Bumps [y18n](https://github.com/yargs/y18n) from 4.0.0 to 4.0.1.
+- [Release notes](https://github.com/yargs/y18n/releases)
+- [Changelog](https://github.com/yargs/y18n/blob/master/CHANGELOG.md)
+- [Commits](https://github.com/yargs/y18n/commits)
+
+Signed-off-by: dependabot[bot] <support@github.com>
+
+Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
+
+## 4.0.19 - Wed Dec 30 2020 02:11:07
+
+**Contributor:** dependabot[bot]
+
+- Bump ini from 1.3.5 to 1.3.8 (#135)
+
+Bumps [ini](https://github.com/isaacs/ini) from 1.3.5 to 1.3.8.
+- [Release notes](https://github.com/isaacs/ini/releases)
+- [Commits](https://github.com/isaacs/ini/compare/v1.3.5...v1.3.8)
+
+Signed-off-by: dependabot[bot] <support@github.com>
+
+Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
+
+## 4.0.18 - Fri Dec 04 2020 21:20:15
+
+**Contributor:** dependabot[bot]
+
+- Bump highlight.js from 10.1.2 to 10.4.1 (#133)
+
+Bumps [highlight.js](https://github.com/highlightjs/highlight.js) from 10.1.2 to 10.4.1.
+- [Release notes](https://github.com/highlightjs/highlight.js/releases)
+- [Changelog](https://github.com/highlightjs/highlight.js/blob/master/CHANGES.md)
+- [Commits](https://github.com/highlightjs/highlight.js/compare/10.1.2...10.4.1)
+
+Signed-off-by: dependabot[bot] <support@github.com>
+
+Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
+
+## 4.0.17 - Fri Nov 13 2020 19:18:04
+
+**Contributor:** Tiger Oakes
+
+- Add strict types for each() (#131)
+
+## 4.0.16 - Fri Nov 13 2020 19:15:24
+
+**Contributor:** Tiger Oakes
+
+- Let migrations be read manually (#132)
+
+## 4.0.15 - Wed Sep 30 2020 16:06:20
+
+**Contributor:** Paul Kiddle
+
+- Make down migrations optional (#129)
+
+## 4.0.14 - Mon Aug 10 2020 01:08:29
+
+**Contributor:** Theo Gravity
+
+- Revert filename optional; update filename checks instead (#125)
+
+The `filename` property is back to being required, but empty strings are valid values for the purpose of using an anonymous disk-based database.
+
+Values of `undefined` or `null` for `filename` will throw.
+
+## 4.0.13 - Mon Aug 10 2020 00:57:58
+
+**Contributor:** Theo Gravity
+
+- Make filename optional (#124)
+
+This allows for the specification of an anonymous database.
+
+## 4.0.12 - Mon Jul 20 2020 04:19:01
+
+**Contributor:** dependabot[bot]
+
+- Bump lodash from 4.17.15 to 4.17.19 (#122)
+
+Bumps [lodash](https://github.com/lodash/lodash) from 4.17.15 to 4.17.19.
+- [Release notes](https://github.com/lodash/lodash/releases)
+- [Commits](https://github.com/lodash/lodash/compare/4.17.15...4.17.19)
+
+Signed-off-by: dependabot[bot] <support@github.com>
+
+Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
+
+## 4.0.11 - Fri Jun 12 2020 09:43:39
+
+**Contributor:** Theo Gravity
+
+- Update readme for inserting rows (#120)
+
+@akc42 pointed out that the docs for `db.run` says it returns `lastId` when it should be `lastID`.
+
+## 4.0.10 - Wed Jun 03 2020 00:51:41
+
+**Contributor:** Gustavo Rodrigues
+
+- Use HTTPS in README badges (#118)
+
+Shields.io badges were being loaded using HTTP causing mixed-content errors in the NPM page.
+
+## 4.0.9 - Mon May 25 2020 22:50:02
+
+**Contributor:** Markus Felten
+
+- feat: provide native esm exports (#117)
+
+## 4.0.8 - Thu May 21 2020 22:59:57
+
+**Contributor:** George Corney
+
+- Move triple-slash reference so it is recognized (#115)
+
+## 4.0.7 - Sun Apr 12 2020 19:43:31
+
+**Contributor:** Yamavol
+
+- Fix typescript defs for sqlite3 loadExtension() (#112)
+
+## 4.0.6 - Sat Apr 11 2020 04:16:08
+
+**Contributor:** Theo Gravity
+
+- Throw an error if two callbacks are defined for #each()
+
+This addresses an issue where the `sqlite3` API for `each()` uses
+two callbacks, while this library only uses one for `each()`.
+
+An error is now thrown if two callbacks are defined when using the
+`sqlite` `each()` method.
+
+(In `sqlite`, the second callback of `sqlite3` is used to resolve the
+promise.)
+
+## 4.0.5 - Sun Apr 05 2020 20:13:43
+
+**Contributor:** [jameswilddev](https://github.com/jameswilddev)
+
+- Use non-default imports rather than synthetic default imports. (#110)
+
+## 4.0.4 - Sun Apr 05 2020 07:44:39
+
+- Fix Typescript reference issues for sqlite3 if it is not installed (#109)
+
+This allows the usage of the `sqlite3-offline`; library in Typescript.
+
+## 4.0.3 - Sun Apr 05 2020 00:01:31
+
+- Fix Typescript issue where `sql-template-strings` is a forced requirement (#108)
+
+It should be an optional dependency and is not required for installation.
+
+## 4.0.2 - Sat Apr 04 2020 22:19:38
+
+- Add management tools section to readme
+
+## 4.0.1 - Sat Apr 04 2020 21:46:39
+
+New major version 4!
+
+This version has been written in Typescript with a target of node.js v10 or greater.
+
+If you are using an older version of node < 10, use the 3.x version of the library instead.
+
+What's new:
+
+- ZERO dependencies!
+  * This should make troubleshooting the library vs the `sqlite3` driver easier. Most issues relate
+  to the `sqlite3` driver vs the library.
+  * Allows support for alternative drivers such as `sqlite3-offline` as long as they match the `node-sqlite3`
+  API.
+- Re-written in Typescript.
+- All existing features maintained.
+- Existing unit tests were cleaned up and pass, new tests added.
+- Better documentation. See `README.md`.
+- New CI process - pull requests merged into master will run tests, build, and auto-publish to NPM.
+- Parity with the `node-sqlite3` API.
+  * Exceptions are `serialize` and `parallelize` (PRs are welcomed!)
+
+Breaking Changes:
+
+- `sqlite3` is no longer a dependency of this project. You must install it first 
+before using this wrapper library.
+  * This allows for usage of alternative libraries.
+  * This means `verbose` and `cache` modes must be enabled before using the library.
+  * The `README.md` file explains how to do this.
+- Opening a new database has changed. See `README.md` for example.
+- migrations API: `force` is now a `boolean`.
+- Can no longer specify a custom `Promise` library. Uses native `Promise` instead.
+
+
+###### [v3.0.3]
+> 2019-03-22
+
+- Export class types for flow [##88](https://github.com/kriasoft/node-sqlite/pull/88)
+
+###### [v3.0.2]
+> 2019-02-14
+
+- Flow: Add Flow typings [##86](https://github.com/kriasoft/node-sqlite/pull/86)
+
+###### [v3.0.1]
+> 2019-01-28
+
+- Typescript: Add cached option to open function [##81](https://github.com/kriasoft/node-sqlite/pull/81)
+- Typescript: Merged declarations for methods that accepts both string and SQLStatements in Database [##80](https://github.com/kriasoft/node-sqlite/pull/80)
+- Misc: Fix small typo [##84](https://github.com/kriasoft/node-sqlite/pull/84)
+- Apply `npm audit` fixes (`mocha` updated to latest)
+
+###### [v3.0.0]
+> 2018-08-22
+
+- Add support for ES6 tagged template strings ([##66](https://github.com/kriasoft/node-sqlite/pull/66))
+
+###### [v2.9.3]
+> 2018-08-22
+
+- Change baseline `sqlite3` version from `4.0.0` -> `^4.0.0` ([##71](https://github.com/kriasoft/node-sqlite/pull/71))
+
+###### [v2.9.2]
+> 2018-04-20
+
+- Bump up baseline `sqlite3` version from `3.1.13` -> `4.0.0` ([##56](https://github.com/kriasoft/node-sqlite/pull/56))
+
+###### [v2.9.1]
+> 2018-01-13
+
+- Expose the `sqlite3##configure` method ([##53](https://github.com/kriasoft/node-sqlite/pull/53))
+- Example fixes ([##52](https://github.com/kriasoft/node-sqlite/pull/52))
+- Example fixes ([##49](https://github.com/kriasoft/node-sqlite/pull/49))
+- Expose `sqlite3` debugging hooksk ([##48](https://github.com/kriasoft/node-sqlite/pull/48))
+- Typescript updates ([##47](https://github.com/kriasoft/node-sqlite/pull/47))
+
+###### [v2.9.0]
+> 2017-11-27
+
+- Move away from global db object in readme ([##45](https://github.com/kriasoft/node-sqlite/pull/45))
+- Fix typescript 2.6.1 issue where *.d.ts contains executable code when it is no longer allowed ([##47](https://github.com/kriasoft/node-sqlite/pull/47))
+- Fix readme typo ([##46](https://github.com/kriasoft/node-sqlite/pull/49))
+- Bump up baseline `sqlite3` version from `3.1.8` -> `3.1.13`
+
+###### [v2.8.0]
+> 2017-05-21
+
+- Match only “down” as separator in migration files ([##32](https://github.com/kriasoft/node-sqlite/pull/32))
+
+###### [v2.7.0]
+> 2017-05-01
+
+- Added support to use the [database object cache](https://github.com/mapbox/node-sqlite3/wiki/Caching) as an option (see readme)
+
+###### [v2.6.0]
+> 2017-04-30
+
+- Migration bug fixed where valid multiple dashes (eg a PEM string) was being removed ([##28](https://github.com/kriasoft/node-sqlite/pull/28))
+
+###### [v2.5.0]
+> 2017-03-23
+
+- npm publish'd from the wrong area. 2.4.0 is unpublished, 2.5.0 is the latest.
+
+###### [v2.4.0]
+> 2017-03-23
+
+- Typescript updates - Make ambient declarations more useful for type inference ([##26](https://github.com/kriasoft/node-sqlite/pull/26))
+
+###### [v2.3.0]
+> 2017-01-31
+
+- Fix a bug sorting of schemas during migrations ([##25](https://github.com/kriasoft/node-sqlite/pull/17))
+
+###### [v2.2.4]
+> 2016-12-10
+
+- Add TypeScript definition ([##21](https://github.com/kriasoft/node-sqlite/pull/21))
+
+###### [v2.2.3]
+> 2016-11-10
+
+- Update `sqlite3` package to 3.1.8
+- Use `external-helpers` plugin in Babel config (ref [##12](https://github.com/kriasoft/node-sqlite/issues/12))
+
+###### [v2.2.2]
+> 2016-11-02
+
+- Fix duplicate migration application when db.migrate() is run multiple times ([##19](https://github.com/kriasoft/node-sqlite/pull/9))
+
+###### [v2.2.1]
+> 2016-10-26
+
+- Update `sqlite3` package to 3.1.7 ([##17](https://github.com/kriasoft/node-sqlite/pull/17), [changelog](https://github.com/mapbox/node-sqlite3/blob/master/CHANGELOG.md))
+
+###### [v2.2.0]
+> 2016-07-22
+
+- Add named parameters support (https://github.com/kriasoft/node-sqlite/pull/10)
+- `Statement` now has `sql()`, `lastId()`, `changes()`
+
+###### [v2.0.2]
+> 2016-05-21
+
+- Add SQL-based migrations API: `db.migrate({ force: 'last' })`
+- Add migration files examples. See `/migrations` folder.
+- Add support for multiple databases: `const db = sqlite.open('db.sqlite')`
+- Add async wrapper for `sqlite3` Statement object
+
+###### [v1.0.0]
+> 2016-05-19
+
+- The initial release after a couple of preview versions earlier this year
+- Built the project with Babel and Rollup for Node.js v3-5, Node.js v6, Node.js vNext
+  (Harmony Modules)
+
+[unreleased]: https://github.com/kriasoft/node-sqlite/compare/v3.0.0...HEAD
+[v3.0.0]: https://github.com/kriasoft/node-sqlite/compare/v2.9.3...v3.0.0
+[v2.9.3]: https://github.com/kriasoft/node-sqlite/compare/v2.9.2...v2.9.3
+[v2.9.2]: https://github.com/kriasoft/node-sqlite/compare/v2.9.1...v2.9.2
+[v2.7.0]: https://github.com/kriasoft/node-sqlite/compare/v2.6.0...v2.7.0
+[v2.6.0]: https://github.com/kriasoft/node-sqlite/compare/v2.5.0...v2.6.0
+[v2.5.0]: https://github.com/kriasoft/node-sqlite/compare/v2.4.0...v2.5.0
+[v2.4.0]: https://github.com/kriasoft/node-sqlite/compare/v2.3.0...v2.4.0
+[v2.3.0]: https://github.com/kriasoft/node-sqlite/compare/v2.2.4...v2.3.0
+[v2.2.4]: https://github.com/kriasoft/node-sqlite/compare/v2.2.3...v2.2.4
+[v2.2.3]: https://github.com/kriasoft/node-sqlite/compare/v2.2.2...v2.2.3
+[v2.2.2]: https://github.com/kriasoft/node-sqlite/compare/v2.2.1...v2.2.2
+[v2.2.1]: https://github.com/kriasoft/node-sqlite/compare/v2.2.0...v2.2.1
+[v2.2.0]: https://github.com/kriasoft/node-sqlite/compare/v2.0.2...v2.2.0
+[v2.0.2]: https://github.com/kriasoft/node-sqlite/compare/v1.0.0...v2.0.2
+[v1.0.0]: https://github.com/kriasoft/node-sqlite/compare/45c1f7904abca55510b45415fe75dccbfc3109a1...v1.0.0
diff --git a/node_modules/sqlite/LICENSE b/node_modules/sqlite/LICENSE
new file mode 100644
index 0000000..e8fb4ee
--- /dev/null
+++ b/node_modules/sqlite/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020-present Kriasoft, Theo Gravity
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/node_modules/sqlite/README.md b/node_modules/sqlite/README.md
new file mode 100644
index 0000000..9bb6f10
--- /dev/null
+++ b/node_modules/sqlite/README.md
@@ -0,0 +1,532 @@
+# SQLite Client for Node.js Apps
+
+[![NPM version](https://img.shields.io/npm/v/sqlite.svg?style=flat-square)](https://www.npmjs.com/package/sqlite)
+[![CircleCI](https://circleci.com/gh/kriasoft/node-sqlite.svg?style=svg)](https://circleci.com/gh/kriasoft/node-sqlite) 
+![built with typescript](https://camo.githubusercontent.com/92e9f7b1209bab9e3e9cd8cdf62f072a624da461/68747470733a2f2f666c61742e62616467656e2e6e65742f62616467652f4275696c74253230576974682f547970655363726970742f626c7565) 
+[![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)
+
+> A wrapper library written in Typescript with **ZERO** dependencies that adds ES6 promises 
+> and SQL-based migrations API to [sqlite3](https://github.com/mapbox/node-sqlite3/) ([docs](https://github.com/mapbox/node-sqlite3/wiki)).
+
+**note** v4 of `sqlite` has breaking changes compared to v3! Please see `CHANGELOG.md` for more details.
+
+<!-- TOC -->
+
+- [Installation](#installation)
+  - [Install `sqlite3`](#install-sqlite3)
+  - [Install `sqlite`](#install-sqlite)
+- [Usage](#usage)
+  - [Opening the database](#opening-the-database)
+    - [Without caching](#without-caching)
+    - [With caching](#with-caching)
+    - [Enable verbose / debug mode](#enable-verbose--debug-mode)
+    - [Tracing SQL errors](#tracing-sql-errors)
+    - [With a custom driver](#with-a-custom-driver)
+    - [Opening multiple databases](#opening-multiple-databases)
+    - [`open` config params](#open-config-params)
+  - [Examples](#examples)
+    - [Creating a table and inserting data](#creating-a-table-and-inserting-data)
+    - [Getting a single row](#getting-a-single-row)
+    - [Getting many rows](#getting-many-rows)
+    - [Inserting rows](#inserting-rows)
+    - [Updating rows](#updating-rows)
+    - [Prepared statement](#prepared-statement)
+    - [`each()`](#each)
+    - [Get the driver instance](#get-the-driver-instance)
+    - [Closing the database](#closing-the-database)
+  - [ES6 tagged template strings](#es6-tagged-template-strings)
+  - [Migrations](#migrations)
+- [Typescript tricks](#typescript-tricks)
+  - [Import interfaces from sqlite](#import-interfaces-from-sqlite)
+  - [Specify typings for a specific database driver](#specify-typings-for-a-specific-database-driver)
+  - [Use generics to get better typings on your rows](#use-generics-to-get-better-typings-on-your-rows)
+    - [Get example](#get-example)
+    - [All example](#all-example)
+- [API Documentation](#api-documentation)
+- [Management Tools](#management-tools)
+- [Alternative SQLite libraries](#alternative-sqlite-libraries)
+- [References](#references)
+- [License](#license)
+
+<!-- TOC END -->
+
+## Installation
+
+### Install `sqlite3`
+
+Most people who use this library will use [sqlite3](https://github.com/mapbox/node-sqlite3/) 
+as the database driver. 
+
+Any library that conforms to the `sqlite3` ([API](https://github.com/mapbox/node-sqlite3/wiki/API)) 
+should also work.
+
+`$ npm install sqlite3 --save`
+
+### Install `sqlite`
+
+```sh
+# v4 of sqlite is targeted for nodejs 10 and on.
+$ npm install sqlite --save
+
+# If you need a legacy version for an older version of nodejs
+# install v3 instead, and look at the v3 branch readme for usage details
+$ npm install sqlite@3 --save
+```
+
+## Usage
+
+This module has the same API as the original `sqlite3` library ([docs](https://github.com/mapbox/node-sqlite3/wiki/API)),
+except that all its API methods return ES6 Promises and do not accept callback arguments (with the exception of `each()`).
+
+### Opening the database
+
+#### Without caching
+
+```typescript
+import sqlite3 from 'sqlite3'
+import { open } from 'sqlite'
+
+// this is a top-level await 
+(async () => {
+    // open the database
+    const db = await open({
+      filename: '/tmp/database.db',
+      driver: sqlite3.Database
+    })
+})()
+```
+or
+
+```typescript
+import sqlite3 from 'sqlite3'
+import { open } from 'sqlite'
+
+open({
+  filename: '/tmp/database.db',
+  driver: sqlite3.Database
+}).then((db) => {
+  // do your thing
+})
+```
+
+or
+
+```typescript
+import sqlite3 from 'sqlite3'
+import { open } from 'sqlite'
+
+// you would have to import / invoke this in another file
+export async function openDb () {
+  return open({
+    filename: '/tmp/database.db',
+    driver: sqlite3.Database
+  })
+}
+```
+
+#### With caching
+
+If you want to enable the [database object cache](https://github.com/mapbox/node-sqlite3/wiki/Caching)
+
+```typescript
+import sqlite3 from 'sqlite3'
+import { open } from 'sqlite'
+
+(async () => {
+    const db = await open({
+      filename: '/tmp/database.db',
+      driver: sqlite3.cached.Database
+    })
+})()
+```
+
+#### Enable verbose / debug mode
+
+```typescript
+import sqlite3 from 'sqlite3'
+
+sqlite3.verbose()
+```
+
+#### Tracing SQL errors
+
+For more info, see this [doc](https://github.com/mapbox/node-sqlite3/wiki/Debugging#databaseontrace-callback).
+
+```typescript
+db.on('trace', (data) => {
+  
+})
+```
+
+#### With a custom driver
+
+You can use an alternative library to `sqlite3` as long as it conforms to the `sqlite3` [API](https://github.com/mapbox/node-sqlite3/wiki/API).
+
+For example, using `sqlite3-offline-next`:
+
+```typescript
+import sqlite3Offline from 'sqlite3-offline-next'
+import { open } from 'sqlite'
+
+(async () => {
+    const db = await open({
+      filename: '/tmp/database.db',
+      driver: sqlite3Offline.Database
+    })
+})()
+```
+
+#### Opening multiple databases
+
+```typescript
+import sqlite3 from 'sqlite3'
+import { open } from 'sqlite'
+
+(async () => {
+  const [db1, db2] = await Promise.all([
+    open({
+      filename: '/tmp/database.db',
+      driver: sqlite3.Database
+    }),
+    open({
+      filename: '/tmp/database2.db',
+      driver: sqlite3.Database
+    }),
+  ])
+
+  await db1.migrate({
+    migrationsPath: '...'
+  })
+
+  await db2.migrate({
+    migrationsPath: '...'
+  })
+})()
+```
+
+#### `open` config params
+
+```typescript
+
+// db is an instance of `sqlite#Database`
+// which is a wrapper around `sqlite3#Database`
+const db = await open({
+  /**
+   * Valid values are filenames, ":memory:" for an anonymous in-memory
+   * database and an empty string for an anonymous disk-based database.
+   * Anonymous databases are not persisted and when closing the database
+   * handle, their contents are lost.
+   */
+  filename: string
+
+  /**
+   * One or more of sqlite3.OPEN_READONLY, sqlite3.OPEN_READWRITE and
+   * sqlite3.OPEN_CREATE. The default value is OPEN_READWRITE | OPEN_CREATE.
+   */
+  mode?: number
+
+  /**
+   * The database driver. Most will install `sqlite3` and use the `Database` class from it.
+   * As long as the library you are using conforms to the `sqlite3` API, you can use it as
+   * the driver.
+   *
+   * @example
+   *
+   * ```
+   * import sqlite from 'sqlite3'
+   *
+   * const driver = sqlite.Database
+   * ```
+   */
+  driver: any
+})
+```
+
+### Examples
+
+- See the `src/**/__tests__` directory for more example usages
+- See the `docs/` directory for full documentation.
+- Also visit the `sqlite3` library [API docs](https://github.com/mapbox/node-sqlite3/wiki/API)
+
+#### Creating a table and inserting data
+
+```typescript
+await db.exec('CREATE TABLE tbl (col TEXT)')
+await db.exec('INSERT INTO tbl VALUES ("test")')
+```
+
+#### Getting a single row
+
+```typescript
+const result = await db.get('SELECT col FROM tbl WHERE col = ?', 'test')
+
+// { col: 'test' }
+```
+
+```typescript
+const result = await db.get('SELECT col FROM tbl WHERE col = ?', ['test'])
+
+// { col: 'test' }
+```
+
+```typescript
+const result = await db.get('SELECT col FROM tbl WHERE col = :test', {
+  ':test': 'test'
+})
+
+// { col: 'test' }
+```
+
+#### Getting many rows
+
+```typescript
+const result = await db.all('SELECT col FROM tbl')
+
+// [{ col: 'test' }]
+```
+
+#### Inserting rows
+
+```typescript
+const result = await db.run(
+  'INSERT INTO tbl (col) VALUES (?)',
+  'foo'
+)
+
+/*
+{
+  // row ID of the inserted row
+  lastID: 1,
+  // instance of `sqlite#Statement`
+  // which is a wrapper around `sqlite3#Statement`
+  stmt: <Statement>
+}
+*/
+```
+
+```typescript
+const result = await db.run('INSERT INTO tbl(col) VALUES (:col)', {
+  ':col': 'something'
+})
+```
+
+#### Updating rows
+
+```typescript
+const result = await db.run(
+  'UPDATE tbl SET col = ? WHERE col = ?',
+  'foo',
+  'test'
+)
+
+/*
+{
+  // number of rows changed
+  changes: 1,
+  // instance of `sqlite#Statement`
+  // which is a wrapper around `sqlite3#Statement`
+  stmt: <Statement>
+}
+*/
+```
+
+#### Prepared statement
+
+```typescript
+// stmt is an instance of `sqlite#Statement`
+// which is a wrapper around `sqlite3#Statement`
+const stmt = await db.prepare('SELECT col FROM tbl WHERE 1 = ? AND 5 = ?5')
+await stmt.bind({ 1: 1, 5: 5 })
+let result = await stmt.get()
+// { col: 'some text' }
+```
+
+```typescript
+const stmt = await db.prepare(
+  'SELECT col FROM tbl WHERE 13 = @thirteen ORDER BY col DESC'
+)
+
+const result = await stmt.all({ '@thirteen': 13 })
+```
+
+#### `each()`
+
+`each()` is a bit different compared to the other operations due to its underlying [implementation](https://github.com/TryGhost/node-sqlite3/wiki/API#databaseeachsql-param--callback-complete).
+
+The function signature looks like this:
+
+`async each (sql, [...params], callback)`
+
+- `callback(err, row)` is triggered when the database has a row to return
+- The promise resolves when all rows have returned with the number of rows returned.
+
+```typescript
+try {
+  // You need to wrap this in a try / catch for SQL parse / connection errors
+  const rowsCount = await db.each(
+    'SELECT col FROM tbl WHERE ROWID = ?',
+    [2],
+    (err, row) => {
+      if (err) {
+        // This would be if there is an error specific to the row result
+        throw err
+      }
+
+      // row = { col: 'other thing' }
+    }
+  )
+} catch (e) {
+  throw e
+}
+
+// rowsCount = 1
+```
+
+#### Get the driver instance
+
+Useful if you need to call methods that are not supported yet.
+
+```typescript
+const rawDb = db.getDatabaseInstance()
+const rawStatement = stmt.getStatementInstance()
+```
+
+#### Closing the database
+
+```typescript
+await db.close()
+```
+
+### ES6 tagged template strings
+
+This module is compatible with [sql-template-strings](https://www.npmjs.com/package/sql-template-strings).
+
+```js
+import SQL from 'sql-template-strings'
+
+const book = 'harry potter';
+const author = 'J. K. Rowling';
+
+const data = await db.all(SQL`SELECT author FROM books WHERE name = ${book} AND author = ${author}`);
+```
+
+### Migrations
+
+This module comes with a lightweight migrations API that works with [SQL-based migration files](https://github.com/kriasoft/node-sqlite/tree/master/migrations)
+
+With default configuration, you can create a `migrations/` directory in your project with SQL files,
+and call the `migrate()` method to run the SQL in the directory against the database.
+
+See this project's `migrations/` folder for examples.
+
+```typescript
+await db.migrate({    
+    /**
+    * If true, will force the migration API to rollback and re-apply the latest migration over
+    * again each time when Node.js app launches.
+    */
+    force?: boolean
+    /**
+    * Migrations table name. Default is 'migrations'
+    */
+    table?: string
+    /**
+    * Path to the migrations folder. Default is `path.join(process.cwd(), 'migrations')`
+    */
+    migrationsPath?: string
+})
+```
+
+## Typescript tricks
+
+### Import interfaces from sqlite
+
+`import { ISqlite, IMigrate } from 'sqlite'`
+
+See the definitions for more details.
+
+### Specify typings for a specific database driver
+
+```typescript
+// Assuming you have @types/sqlite3 installed
+import sqlite3 from 'sqlite3'
+
+// sqlite3.Database, sqlite3.Statement is the default if no explicit generic is specified
+await open<sqlite3.Database, sqlite3.Statement>({
+  filename: ':memory'
+})
+```
+
+### Use generics to get better typings on your rows
+
+Most methods allow for the use of [generics](https://www.typescriptlang.org/docs/handbook/generics.html)
+to specify the data type of your returned data. This allows your IDE to perform better autocomplete
+and the typescript compiler to perform better static type analysis.
+
+#### Get example
+
+```typescript
+
+interface Row {
+  col: string
+}
+
+// result will be of type Row, allowing Typescript supported IDEs to autocomplete on the properties!
+const result = await db.get<Row>('SELECT col FROM tbl WHERE col = ?', 'test')
+```
+
+#### All example
+
+```typescript
+interface Row {
+  col: string
+}
+
+// Result is an array of rows, you can now have array-autocompletion data
+const result = await db.all<Row[]>('SELECT col FROM tbl')
+
+result.each((row) => {
+  // row should have type information now!
+})
+```
+
+## API Documentation
+
+See the [`docs`](docs/globals.md) directory for full documentation.
+
+## Management Tools
+
+- [Beekeeper Studio](https://www.beekeeperstudio.io/): Open Source SQL Editor and Database Manager
+- [DB Browser for SQLite](https://github.com/sqlitebrowser/sqlitebrowser): Desktop-based browser.
+- [datasette](https://github.com/simonw/datasette): Datasette is a tool for exploring and publishing 
+data. Starts up a server that provides a web interface to your SQLite data.
+- [SQLite Studio](https://github.com/pawelsalawa/sqlitestudio): A free, open source, multi-platform SQLite database manager written in C++, with use of Qt framework.
+- [HeidiSQL](https://www.heidisql.com/): Full-featured database editor.
+- [DBeaver](https://dbeaver.io/): Full-featured multi-platform database tool and designer.   
+
+## Alternative SQLite libraries
+
+This library and the library it primarily supports, `sqlite3`, may not be the best library that
+fits your use-case. You might want to try these other SQLite libraries:
+
+- [better-sqlite3](https://github.com/JoshuaWise/better-sqlite3): Totes itself as the fastest and 
+simplest library for SQLite3 in Node.js.
+- [Bun sqlite3](https://github.com/Jarred-Sumner/bun#bunsqlite-sqlite3-module): `bun:sqlite` is a high-performance builtin SQLite3 module for `bun.js`.
+- [sql.js](https://github.com/sql-js/sql.js): SQLite compiled to Webassembly.
+- [sqlite3-offline-next](https://github.com/nicolaiort/sqlite3-offline-next): Offers pre-compiled `sqlite3` 
+binaries if your machine cannot compile it. Should be mostly compatible with this library.
+
+If you know of any others, feel free to open a PR to add them to the list.
+
+## References
+
+* [Using SQLite with Node.js for Rapid Prototyping](https://medium.com/@tarkus/node-js-and-sqlite-for-rapid-prototyping-bc9cf1f26f10) on Medium.com
+* [SQLite Documentation](https://www.sqlite.org/docs.html), e.g. [SQL Syntax](https://www.sqlite.org/lang.html), [Data Types](https://www.sqlite.org/datatype3.html) etc. on SQLite.org
+* ES6 tagged [sql-template-strings](https://www.npmjs.com/package/sql-template-strings).
+
+## License
+
+The MIT License © 2020-present Kriasoft / Theo Gravity. All rights reserved.
+
+---
+Made with ♥ by [Konstantin Tarkus](https://github.com/koistya) ([@koistya](https://twitter.com/koistya)), [Theo Gravity](https://github.com/theogravity) and [contributors](https://github.com/kriasoft/node-sqlite/graphs/contributors)
diff --git a/node_modules/sqlite/build/Database.d.ts b/node_modules/sqlite/build/Database.d.ts
new file mode 100644
index 0000000..e4f6d38
--- /dev/null
+++ b/node_modules/sqlite/build/Database.d.ts
@@ -0,0 +1,156 @@
+/// <reference types="./vendor-typings/sqlite3" />
+import * as sqlite3 from 'sqlite3';
+import { ISqlite, IMigrate } from './interfaces';
+import { Statement } from './Statement';
+import MigrationParams = IMigrate.MigrationParams;
+/**
+ * Promisified wrapper for the sqlite3#Database interface.
+ */
+export declare class Database<Driver extends sqlite3.Database = sqlite3.Database, Stmt extends sqlite3.Statement = sqlite3.Statement> {
+    config: ISqlite.Config;
+    db: Driver;
+    constructor(config: ISqlite.Config);
+    /**
+     * Event handler when verbose mode is enabled.
+     * @see https://github.com/mapbox/node-sqlite3/wiki/Debugging
+     */
+    on(event: string, listener: any): void;
+    /**
+     * Returns the underlying sqlite3 Database instance
+     */
+    getDatabaseInstance(): Driver;
+    /**
+     * Opens the database
+     */
+    open(): Promise<void>;
+    /**
+     * Closes the database.
+     */
+    close(): Promise<void>;
+    /**
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#databaseconfigureoption-value
+     */
+    configure(option: ISqlite.ConfigureOption, value: any): any;
+    /**
+     * Runs the SQL query with the specified parameters. It does not retrieve any result data.
+     * The function returns the Database object for which it was called to allow for function chaining.
+     *
+     * @param {string} sql The SQL query to run.
+     *
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     *
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#databaserunsql-param--callback
+     */
+    run(sql: ISqlite.SqlType, ...params: any[]): Promise<ISqlite.RunResult<Stmt>>;
+    /**
+     * Runs the SQL query with the specified parameters and resolves with
+     * with the first result row afterwards. If the result set is empty, returns undefined.
+     *
+     * The property names correspond to the column names of the result set.
+     * It is impossible to access them by column index; the only supported way is by column name.
+     *
+     * @param {string} sql The SQL query to run.
+     *
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     *
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#databasegetsql-param--callback
+     */
+    get<T = any>(sql: ISqlite.SqlType, ...params: any[]): Promise<T | undefined>;
+    /**
+     * Runs the SQL query with the specified parameters and calls the callback once for each result
+     * row. The parameters are the same as the Database#run function, with the following differences:
+     *
+     * If the result set succeeds but is empty, the callback is never called.
+     * In all other cases, the callback is called once for every retrieved row.
+     * The order of calls correspond exactly to the order of rows in the result set.
+     *
+     * There is currently no way to abort execution!
+     *
+     * The last parameter to each() *must* be a callback function.
+     *
+     * @example await db.each('SELECT * FROM x WHERE y = ?', 'z', (err, row) => {
+     *   // row contains the row data
+     *   // each() resolves when there are no more rows to fetch
+     * })
+     *
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#databaseeachsql-param--callback-complete
+     * @returns Promise<number> Number of rows returned
+     */
+    each<T = any>(sql: ISqlite.SqlType, callback: (err: any, row: T) => void): Promise<number>;
+    each<T = any>(sql: ISqlite.SqlType, param1: any, callback: (err: any, row: T) => void): Promise<number>;
+    each<T = any>(sql: ISqlite.SqlType, param1: any, param2: any, callback: (err: any, row: T) => void): Promise<number>;
+    each<T = any>(sql: ISqlite.SqlType, param1: any, param2: any, param3: any, callback: (err: any, row: T) => void): Promise<number>;
+    each<T = any>(sql: ISqlite.SqlType, ...params: any[]): Promise<number>;
+    /**
+     * Runs the SQL query with the specified parameters. The parameters are the same as the
+     * Database#run function, with the following differences:
+     *
+     * If the result set is empty, it will be an empty array, otherwise it will
+     * have an object for each result row which
+     * in turn contains the values of that row, like the Database#get function.
+     *
+     * Note that it first retrieves all result rows and stores them in memory.
+     * For queries that have potentially large result sets, use the Database#each
+     * function to retrieve all rows or Database#prepare followed by multiple
+     * Statement#get calls to retrieve a previously unknown amount of rows.
+     *
+     * @param {string} sql The SQL query to run.
+     *
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     *
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#databaseallsql-param--callback
+     */
+    all<T = any[]>(sql: ISqlite.SqlType, ...params: any[]): Promise<T>;
+    /**
+     * Runs all SQL queries in the supplied string. No result rows are retrieved. If a query fails,
+     * no subsequent statements will be executed (wrap it in a transaction if you want all
+     * or none to be executed).
+     *
+     * Note: This function will only execute statements up to the first NULL byte.
+     * Comments are not allowed and will lead to runtime errors.
+     *
+     * @param {string} sql The SQL query to run.
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#databaseexecsql-callback
+     */
+    exec(sql: ISqlite.SqlType): Promise<void>;
+    /**
+     * Prepares the SQL statement and optionally binds the specified parameters.
+     * When bind parameters are supplied, they are bound to the prepared statement.
+     *
+     * @param {string} sql The SQL query to run.
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     * @returns Promise<Statement> Statement object
+     */
+    prepare(sql: ISqlite.SqlType, ...params: any[]): Promise<Statement<Stmt>>;
+    /**
+     * Loads a compiled SQLite extension into the database connection object.
+     *
+     * @param {string} path Filename of the extension to load
+     */
+    loadExtension(path: string): Promise<void>;
+    /**
+     * Performs a database migration.
+     */
+    migrate(config?: MigrationParams): Promise<void>;
+    /**
+     * The methods underneath requires creative work to implement. PRs / proposals accepted!
+     */
+    serialize(): void;
+    parallelize(): void;
+}
diff --git a/node_modules/sqlite/build/Database.js b/node_modules/sqlite/build/Database.js
new file mode 100644
index 0000000..13d9715
--- /dev/null
+++ b/node_modules/sqlite/build/Database.js
@@ -0,0 +1,280 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Database = void 0;
+const Statement_1 = require("./Statement");
+const migrate_1 = require("./utils/migrate");
+const strings_1 = require("./utils/strings");
+const format_error_1 = require("./utils/format-error");
+/**
+ * Promisified wrapper for the sqlite3#Database interface.
+ */
+class Database {
+    constructor(config) {
+        this.config = config;
+        this.db = null;
+    }
+    /**
+     * Event handler when verbose mode is enabled.
+     * @see https://github.com/mapbox/node-sqlite3/wiki/Debugging
+     */
+    on(event, listener) {
+        this.db.on(event, listener);
+    }
+    /**
+     * Returns the underlying sqlite3 Database instance
+     */
+    getDatabaseInstance() {
+        return this.db;
+    }
+    /**
+     * Opens the database
+     */
+    open() {
+        return new Promise((resolve, reject) => {
+            let { filename, mode, driver } = this.config;
+            // https://github.com/mapbox/node-sqlite3/wiki/API#new-sqlite3databasefilename-mode-callback
+            if (filename === null || filename === undefined) {
+                throw new Error('sqlite: filename cannot be null / undefined');
+            }
+            if (!driver) {
+                throw new Error('sqlite: driver is not defined');
+            }
+            if (mode) {
+                this.db = new driver(filename, mode, err => {
+                    if (err) {
+                        return reject((0, format_error_1.formatError)(err));
+                    }
+                    resolve();
+                });
+            }
+            else {
+                this.db = new driver(filename, err => {
+                    if (err) {
+                        return reject((0, format_error_1.formatError)(err));
+                    }
+                    resolve();
+                });
+            }
+        });
+    }
+    /**
+     * Closes the database.
+     */
+    close() {
+        return new Promise((resolve, reject) => {
+            this.db.close(err => {
+                if (err) {
+                    return reject((0, format_error_1.formatError)(err));
+                }
+                resolve();
+            });
+        });
+    }
+    /**
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#databaseconfigureoption-value
+     */
+    configure(option, value) {
+        this.db.configure(option, value);
+    }
+    /**
+     * Runs the SQL query with the specified parameters. It does not retrieve any result data.
+     * The function returns the Database object for which it was called to allow for function chaining.
+     *
+     * @param {string} sql The SQL query to run.
+     *
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     *
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#databaserunsql-param--callback
+     */
+    run(sql, ...params) {
+        return new Promise((resolve, reject) => {
+            const sqlObj = (0, strings_1.toSqlParams)(sql, params);
+            this.db.run(sqlObj.sql, ...sqlObj.params, function (err) {
+                if (err) {
+                    return reject((0, format_error_1.formatError)(err));
+                }
+                resolve({
+                    stmt: new Statement_1.Statement(this.stmt),
+                    lastID: this.lastID,
+                    changes: this.changes
+                });
+            });
+        });
+    }
+    /**
+     * Runs the SQL query with the specified parameters and resolves with
+     * with the first result row afterwards. If the result set is empty, returns undefined.
+     *
+     * The property names correspond to the column names of the result set.
+     * It is impossible to access them by column index; the only supported way is by column name.
+     *
+     * @param {string} sql The SQL query to run.
+     *
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     *
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#databasegetsql-param--callback
+     */
+    get(sql, ...params) {
+        return new Promise((resolve, reject) => {
+            const sqlObj = (0, strings_1.toSqlParams)(sql, params);
+            this.db.get(sqlObj.sql, ...sqlObj.params, (err, row) => {
+                if (err) {
+                    return reject((0, format_error_1.formatError)(err));
+                }
+                resolve(row);
+            });
+        });
+    }
+    each(sql, ...params) {
+        return new Promise((resolve, reject) => {
+            const callback = params.pop();
+            if (!callback || typeof callback !== 'function') {
+                throw new Error('sqlite: Last param of Database#each() must be a callback function');
+            }
+            if (params.length > 0) {
+                const positional = params.pop();
+                if (typeof positional === 'function') {
+                    throw new Error('sqlite: Database#each() should only have a single callback defined. See readme for usage.');
+                }
+                params.push(positional);
+            }
+            const sqlObj = (0, strings_1.toSqlParams)(sql, params);
+            this.db.each(sqlObj.sql, ...sqlObj.params, (err, row) => {
+                if (err) {
+                    return callback((0, format_error_1.formatError)(err), null);
+                }
+                callback(null, row);
+            }, (err, count) => {
+                if (err) {
+                    return reject((0, format_error_1.formatError)(err));
+                }
+                resolve(count);
+            });
+        });
+    }
+    /**
+     * Runs the SQL query with the specified parameters. The parameters are the same as the
+     * Database#run function, with the following differences:
+     *
+     * If the result set is empty, it will be an empty array, otherwise it will
+     * have an object for each result row which
+     * in turn contains the values of that row, like the Database#get function.
+     *
+     * Note that it first retrieves all result rows and stores them in memory.
+     * For queries that have potentially large result sets, use the Database#each
+     * function to retrieve all rows or Database#prepare followed by multiple
+     * Statement#get calls to retrieve a previously unknown amount of rows.
+     *
+     * @param {string} sql The SQL query to run.
+     *
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     *
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#databaseallsql-param--callback
+     */
+    all(sql, ...params) {
+        return new Promise((resolve, reject) => {
+            const sqlObj = (0, strings_1.toSqlParams)(sql, params);
+            this.db.all(sqlObj.sql, ...sqlObj.params, (err, rows) => {
+                if (err) {
+                    return reject((0, format_error_1.formatError)(err));
+                }
+                resolve(rows);
+            });
+        });
+    }
+    /**
+     * Runs all SQL queries in the supplied string. No result rows are retrieved. If a query fails,
+     * no subsequent statements will be executed (wrap it in a transaction if you want all
+     * or none to be executed).
+     *
+     * Note: This function will only execute statements up to the first NULL byte.
+     * Comments are not allowed and will lead to runtime errors.
+     *
+     * @param {string} sql The SQL query to run.
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#databaseexecsql-callback
+     */
+    exec(sql) {
+        return new Promise((resolve, reject) => {
+            const sqlObj = (0, strings_1.toSqlParams)(sql);
+            this.db.exec(sqlObj.sql, err => {
+                if (err) {
+                    return reject((0, format_error_1.formatError)(err));
+                }
+                resolve();
+            });
+        });
+    }
+    /**
+     * Prepares the SQL statement and optionally binds the specified parameters.
+     * When bind parameters are supplied, they are bound to the prepared statement.
+     *
+     * @param {string} sql The SQL query to run.
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     * @returns Promise<Statement> Statement object
+     */
+    prepare(sql, ...params) {
+        return new Promise((resolve, reject) => {
+            const sqlObj = (0, strings_1.toSqlParams)(sql, params);
+            const stmt = this.db.prepare(sqlObj.sql, ...sqlObj.params, err => {
+                if (err) {
+                    return reject(err);
+                }
+                resolve(new Statement_1.Statement(stmt));
+            });
+        });
+    }
+    /**
+     * Loads a compiled SQLite extension into the database connection object.
+     *
+     * @param {string} path Filename of the extension to load
+     */
+    loadExtension(path) {
+        return new Promise((resolve, reject) => {
+            this.db.loadExtension(path, err => {
+                if (err) {
+                    return reject((0, format_error_1.formatError)(err));
+                }
+                resolve();
+            });
+        });
+    }
+    /**
+     * Performs a database migration.
+     */
+    async migrate(config) {
+        await (0, migrate_1.migrate)(this, config);
+    }
+    /**
+     * The methods underneath requires creative work to implement. PRs / proposals accepted!
+     */
+    /*
+     * Unsure if serialize can be made into a promise.
+     */
+    serialize() {
+        throw new Error('sqlite: Currently not implemented. Use getDatabaseInstance().serialize() instead.');
+    }
+    /*
+     * Unsure if parallelize can be made into a promise.
+     */
+    parallelize() {
+        throw new Error('sqlite: Currently not implemented. Use getDatabaseInstance().parallelize() instead.');
+    }
+}
+exports.Database = Database;
+//# sourceMappingURL=Database.js.map
\ No newline at end of file
diff --git a/node_modules/sqlite/build/Database.js.map b/node_modules/sqlite/build/Database.js.map
new file mode 100644
index 0000000..a443d5f
--- /dev/null
+++ b/node_modules/sqlite/build/Database.js.map
@@ -0,0 +1 @@
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diff --git a/node_modules/sqlite/build/Statement.d.ts b/node_modules/sqlite/build/Statement.d.ts
new file mode 100644
index 0000000..0fe5c95
--- /dev/null
+++ b/node_modules/sqlite/build/Statement.d.ts
@@ -0,0 +1,110 @@
+/// <reference types="./vendor-typings/sqlite3" />
+import * as sqlite from 'sqlite3';
+import { ISqlite } from './interfaces';
+/**
+ * Promisified wrapper for the sqlite3#Statement interface.
+ */
+export declare class Statement<S extends sqlite.Statement = sqlite.Statement> {
+    stmt: S;
+    constructor(stmt: S);
+    /**
+     * Returns the underlying sqlite3 Statement instance
+     */
+    getStatementInstance(): S;
+    /**
+     * Binds parameters to the prepared statement.
+     *
+     * Binding parameters with this function completely resets the statement object and row cursor
+     * and removes all previously bound parameters, if any.
+     */
+    bind(...params: any[]): Promise<void>;
+    /**
+     * Resets the row cursor of the statement and preserves the parameter bindings.
+     * Use this function to re-execute the same query with the same bindings.
+     */
+    reset(): Promise<void>;
+    /**
+     * Finalizes the statement. This is typically optional, but if you experience long delays before
+     * the next query is executed, explicitly finalizing your statement might be necessary.
+     * This might be the case when you run an exclusive query (see section Control Flow).
+     * After the statement is finalized, all further function calls on that statement object
+     * will throw errors.
+     */
+    finalize(): Promise<void>;
+    /**
+     * Binds parameters and executes the statement.
+     *
+     * If you specify bind parameters, they will be bound to the statement before it is executed.
+     * Note that the bindings and the row cursor are reset when you specify even a single bind parameter.
+     *
+     * The execution behavior is identical to the Database#run method with the difference that the
+     * statement will not be finalized after it is run. This means you can run it multiple times.
+     *
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     */
+    run(...params: any[]): Promise<ISqlite.RunResult>;
+    /**
+     * Binds parameters, executes the statement and retrieves the first result row.
+     * The parameters are the same as the Statement#run function, with the following differences:
+     *
+     * Using this method can leave the database locked, as the database awaits further
+     * calls to Statement#get to retrieve subsequent rows. To inform the database that you
+     * are finished retrieving rows, you should either finalize (with Statement#finalize)
+     * or reset (with Statement#reset) the statement.
+     *
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     */
+    get<T = any>(...params: any[]): Promise<T | undefined>;
+    /**
+     * Binds parameters, executes the statement and calls the callback with all result rows.
+     * The parameters are the same as the Statement#run function, with the following differences:
+     *
+     * If the result set is empty, it will resolve to an empty array, otherwise it contains an
+     * object for each result row which in turn contains the values of that row.
+     * Like with Statement#run, the statement will not be finalized after executing this function.
+     *
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     *
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#databaseallsql-param--callback
+     */
+    all<T = any[]>(...params: any[]): Promise<T>;
+    /**
+     * Binds parameters, executes the statement and calls the callback for each result row.
+     *
+     * If the result set succeeds but is empty, the callback is never called.
+     * In all other cases, the callback is called once for every retrieved row.
+     * The order of calls correspond exactly to the order of rows in the result set.
+     *
+     * Like with Statement#run, the statement will not be finalized after executing this function.
+     *
+     * There is currently no way to abort execution!
+     *
+     * The last parameter to each() *must* be a callback function, where the first parameter will
+     * be the returned row.
+     *
+     * @example await stmt.each('someParamValue', (err, row) => {
+     *   // row contains the row data
+     *   // each() resolves when there are no more rows to fetch
+     * })
+     *
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#statementeachparam--callback-complete
+     * @returns Promise<number> Number of rows returned
+     */
+    each<T = any>(callback: (err: any, row: T) => void): Promise<number>;
+    each<T = any>(param1: any, callback: (err: any, row: T) => void): Promise<number>;
+    each<T = any>(param1: any, param2: any, callback: (err: any, row: T) => void): Promise<number>;
+    each<T = any>(param1: any, param2: any, param3: any, callback: (err: any, row: T) => void): Promise<number>;
+    each<T = any>(...params: any[]): Promise<number>;
+}
diff --git a/node_modules/sqlite/build/Statement.js b/node_modules/sqlite/build/Statement.js
new file mode 100644
index 0000000..115ade7
--- /dev/null
+++ b/node_modules/sqlite/build/Statement.js
@@ -0,0 +1,171 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Statement = void 0;
+const format_error_1 = require("./utils/format-error");
+/**
+ * Promisified wrapper for the sqlite3#Statement interface.
+ */
+class Statement {
+    constructor(stmt) {
+        this.stmt = stmt;
+    }
+    /**
+     * Returns the underlying sqlite3 Statement instance
+     */
+    getStatementInstance() {
+        return this.stmt;
+    }
+    /**
+     * Binds parameters to the prepared statement.
+     *
+     * Binding parameters with this function completely resets the statement object and row cursor
+     * and removes all previously bound parameters, if any.
+     */
+    bind(...params) {
+        return new Promise((resolve, reject) => {
+            this.stmt.bind(...params, err => {
+                if (err) {
+                    return reject((0, format_error_1.formatError)(err));
+                }
+                resolve();
+            });
+        });
+    }
+    /**
+     * Resets the row cursor of the statement and preserves the parameter bindings.
+     * Use this function to re-execute the same query with the same bindings.
+     */
+    reset() {
+        return new Promise(resolve => {
+            this.stmt.reset(() => {
+                resolve();
+            });
+        });
+    }
+    /**
+     * Finalizes the statement. This is typically optional, but if you experience long delays before
+     * the next query is executed, explicitly finalizing your statement might be necessary.
+     * This might be the case when you run an exclusive query (see section Control Flow).
+     * After the statement is finalized, all further function calls on that statement object
+     * will throw errors.
+     */
+    finalize() {
+        return new Promise((resolve, reject) => {
+            this.stmt.finalize(err => {
+                if (err) {
+                    return reject((0, format_error_1.formatError)(err));
+                }
+                resolve();
+            });
+        });
+    }
+    /**
+     * Binds parameters and executes the statement.
+     *
+     * If you specify bind parameters, they will be bound to the statement before it is executed.
+     * Note that the bindings and the row cursor are reset when you specify even a single bind parameter.
+     *
+     * The execution behavior is identical to the Database#run method with the difference that the
+     * statement will not be finalized after it is run. This means you can run it multiple times.
+     *
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     */
+    run(...params) {
+        return new Promise((resolve, reject) => {
+            const stmt = this;
+            this.stmt.run(...params, function (err) {
+                if (err) {
+                    return reject((0, format_error_1.formatError)(err));
+                }
+                resolve({
+                    stmt,
+                    lastID: this.lastID,
+                    changes: this.changes
+                });
+            });
+        });
+    }
+    /**
+     * Binds parameters, executes the statement and retrieves the first result row.
+     * The parameters are the same as the Statement#run function, with the following differences:
+     *
+     * Using this method can leave the database locked, as the database awaits further
+     * calls to Statement#get to retrieve subsequent rows. To inform the database that you
+     * are finished retrieving rows, you should either finalize (with Statement#finalize)
+     * or reset (with Statement#reset) the statement.
+     *
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     */
+    get(...params) {
+        return new Promise((resolve, reject) => {
+            this.stmt.get(...params, (err, row) => {
+                if (err) {
+                    return reject((0, format_error_1.formatError)(err));
+                }
+                resolve(row);
+            });
+        });
+    }
+    /**
+     * Binds parameters, executes the statement and calls the callback with all result rows.
+     * The parameters are the same as the Statement#run function, with the following differences:
+     *
+     * If the result set is empty, it will resolve to an empty array, otherwise it contains an
+     * object for each result row which in turn contains the values of that row.
+     * Like with Statement#run, the statement will not be finalized after executing this function.
+     *
+     * @param {any} [params, ...] When the SQL statement contains placeholders, you
+     * can pass them in here. They will be bound to the statement before it is
+     * executed. There are three ways of passing bind parameters: directly in
+     * the function's arguments, as an array, and as an object for named
+     * parameters. This automatically sanitizes inputs.
+     *
+     * @see https://github.com/mapbox/node-sqlite3/wiki/API#databaseallsql-param--callback
+     */
+    all(...params) {
+        return new Promise((resolve, reject) => {
+            this.stmt.all(...params, (err, rows) => {
+                if (err) {
+                    return reject((0, format_error_1.formatError)(err));
+                }
+                resolve(rows);
+            });
+        });
+    }
+    each(...params) {
+        return new Promise((resolve, reject) => {
+            const callback = params.pop();
+            if (!callback || typeof callback !== 'function') {
+                throw new Error('sqlite: Last param of Statement#each() must be a callback function');
+            }
+            if (params.length > 0) {
+                const positional = params.pop();
+                if (typeof positional === 'function') {
+                    throw new Error('sqlite: Statement#each() should only have a single callback defined. See readme for usage.');
+                }
+                params.push(positional);
+            }
+            this.stmt.each(...params, (err, row) => {
+                if (err) {
+                    return callback((0, format_error_1.formatError)(err), null);
+                }
+                callback(null, row);
+            }, (err, count) => {
+                if (err) {
+                    return reject((0, format_error_1.formatError)(err));
+                }
+                resolve(count);
+            });
+        });
+    }
+}
+exports.Statement = Statement;
+//# sourceMappingURL=Statement.js.map
\ No newline at end of file
diff --git a/node_modules/sqlite/build/Statement.js.map b/node_modules/sqlite/build/Statement.js.map
new file mode 100644
index 0000000..a61a59e
--- /dev/null
+++ b/node_modules/sqlite/build/Statement.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"Statement.js","sourceRoot":"","sources":["../src/Statement.ts"],"names":[],"mappings":";;;AAEA,uDAAkD;AAElD;;GAEG;AACH,MAAa,SAAS;IAGpB,YAAa,IAAO;QAClB,IAAI,CAAC,IAAI,GAAG,IAAI,CAAA;IAClB,CAAC;IAED;;OAEG;IACH,oBAAoB;QAClB,OAAO,IAAI,CAAC,IAAI,CAAA;IAClB,CAAC;IAED;;;;;OAKG;IACH,IAAI,CAAE,GAAG,MAAa;QACpB,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;YACrC,IAAI,CAAC,IAAI,CAAC,IAAI,CAAC,GAAG,MAAM,EAAE,GAAG,CAAC,EAAE;gBAC9B,IAAI,GAAG,EAAE;oBACP,OAAO,MAAM,CAAC,IAAA,0BAAW,EAAC,GAAG,CAAC,CAAC,CAAA;iBAChC;gBAED,OAAO,EAAE,CAAA;YACX,CAAC,CAAC,CAAA;QACJ,CAAC,CAAC,CAAA;IACJ,CAAC;IAED;;;OAGG;IACH,KAAK;QACH,OAAO,IAAI,OAAO,CAAC,OAAO,CAAC,EAAE;YAC3B,IAAI,CAAC,IAAI,CAAC,KAAK,CAAC,GAAG,EAAE;gBACnB,OAAO,EAAE,CAAA;YACX,CAAC,CAAC,CAAA;QACJ,CAAC,CAAC,CAAA;IACJ,CAAC;IAED;;;;;;OAMG;IACH,QAAQ;QACN,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;YACrC,IAAI,CAAC,IAAI,CAAC,QAAQ,CAAC,GAAG,CAAC,EAAE;gBACvB,IAAI,GAAG,EAAE;oBACP,OAAO,MAAM,CAAC,IAAA,0BAAW,EAAC,GAAG,CAAC,CAAC,CAAA;iBAChC;gBAED,OAAO,EAAE,CAAA;YACX,CAAC,CAAC,CAAA;QACJ,CAAC,CAAC,CAAA;IACJ,CAAC;IAED;;;;;;;;;;;;;;OAcG;IACH,GAAG,CAAE,GAAG,MAAa;QACnB,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;YACrC,MAAM,IAAI,GAAG,IAAI,CAAA;YAEjB,IAAI,CAAC,IAAI,CAAC,GAAG,CAAC,GAAG,MAAM,EAAE,UAAU,GAAG;gBACpC,IAAI,GAAG,EAAE;oBACP,OAAO,MAAM,CAAC,IAAA,0BAAW,EAAC,GAAG,CAAC,CAAC,CAAA;iBAChC;gBAED,OAAO,CAAC;oBACN,IAAI;oBACJ,MAAM,EAAE,IAAI,CAAC,MAAM;oBACnB,OAAO,EAAE,IAAI,CAAC,OAAO;iBACtB,CAAC,CAAA;YACJ,CAAC,CAAC,CAAA;QACJ,CAAC,CAAC,CAAA;IACJ,CAAC;IAED;;;;;;;;;;;;;;OAcG;IACH,GAAG,CAAW,GAAG,MAAa;QAC5B,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;YACrC,IAAI,CAAC,IAAI,CAAC,GAAG,CAAC,GAAG,MAAM,EAAE,CAAC,GAAG,EAAE,GAAO,EAAE,EAAE;gBACxC,IAAI,GAAG,EAAE;oBACP,OAAO,MAAM,CAAC,IAAA,0BAAW,EAAC,GAAG,CAAC,CAAC,CAAA;iBAChC;gBAED,OAAO,CAAC,GAAG,CAAC,CAAA;YACd,CAAC,CAAC,CAAA;QACJ,CAAC,CAAC,CAAA;IACJ,CAAC;IAED;;;;;;;;;;;;;;;OAeG;IACH,GAAG,CAAa,GAAG,MAAa;QAC9B,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;YACrC,IAAI,CAAC,IAAI,CAAC,GAAG,CAAC,GAAG,MAAM,EAAE,CAAC,GAAG,EAAE,IAAQ,EAAE,EAAE;gBACzC,IAAI,GAAG,EAAE;oBACP,OAAO,MAAM,CAAC,IAAA,0BAAW,EAAC,GAAG,CAAC,CAAC,CAAA;iBAChC;gBAED,OAAO,CAAC,IAAI,CAAC,CAAA;YACf,CAAC,CAAC,CAAA;QACJ,CAAC,CAAC,CAAA;IACJ,CAAC;IAyCD,IAAI,CAAW,GAAG,MAAa;QAC7B,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;YACrC,MAAM,QAAQ,GAA0B,MAAM,CAAC,GAAG,EAAE,CAAA;YAEpD,IAAI,CAAC,QAAQ,IAAI,OAAO,QAAQ,KAAK,UAAU,EAAE;gBAC/C,MAAM,IAAI,KAAK,CACb,oEAAoE,CACrE,CAAA;aACF;YAED,IAAI,MAAM,CAAC,MAAM,GAAG,CAAC,EAAE;gBACrB,MAAM,UAAU,GAAG,MAAM,CAAC,GAAG,EAAE,CAAA;gBAE/B,IAAI,OAAO,UAAU,KAAK,UAAU,EAAE;oBACpC,MAAM,IAAI,KAAK,CACb,4FAA4F,CAC7F,CAAA;iBACF;gBAED,MAAM,CAAC,IAAI,CAAC,UAAU,CAAC,CAAA;aACxB;YAED,IAAI,CAAC,IAAI,CAAC,IAAI,CACZ,GAAG,MAAM,EACT,CAAC,GAAG,EAAE,GAAG,EAAE,EAAE;gBACX,IAAI,GAAG,EAAE;oBACP,OAAO,QAAQ,CAAC,IAAA,0BAAW,EAAC,GAAG,CAAC,EAAE,IAAI,CAAC,CAAA;iBACxC;gBAED,QAAQ,CAAC,IAAI,EAAE,GAAG,CAAC,CAAA;YACrB,CAAC,EACD,CAAC,GAAG,EAAE,KAAK,EAAE,EAAE;gBACb,IAAI,GAAG,EAAE;oBACP,OAAO,MAAM,CAAC,IAAA,0BAAW,EAAC,GAAG,CAAC,CAAC,CAAA;iBAChC;gBAED,OAAO,CAAC,KAAK,CAAC,CAAA;YAChB,CAAC,CACF,CAAA;QACH,CAAC,CAAC,CAAA;IACJ,CAAC;CACF;AAvOD,8BAuOC"}
\ No newline at end of file
diff --git a/node_modules/sqlite/build/index.d.ts b/node_modules/sqlite/build/index.d.ts
new file mode 100644
index 0000000..7062f41
--- /dev/null
+++ b/node_modules/sqlite/build/index.d.ts
@@ -0,0 +1,10 @@
+/// <reference types="./vendor-typings/sqlite3" />
+import * as sqlite3 from 'sqlite3';
+import { Statement } from './Statement';
+import { Database } from './Database';
+import { ISqlite, IMigrate } from './interfaces';
+/**
+ * Opens a database for manipulation. Most users will call this to get started.
+ */
+declare function open<Driver extends sqlite3.Database = sqlite3.Database, Stmt extends sqlite3.Statement = sqlite3.Statement>(config: ISqlite.Config): Promise<Database>;
+export { open, Statement, Database, ISqlite, IMigrate };
diff --git a/node_modules/sqlite/build/index.js b/node_modules/sqlite/build/index.js
new file mode 100644
index 0000000..e2fa81f
--- /dev/null
+++ b/node_modules/sqlite/build/index.js
@@ -0,0 +1,18 @@
+"use strict";
+/// <reference types="./vendor-typings/sqlite3" />
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Database = exports.Statement = exports.open = void 0;
+const Statement_1 = require("./Statement");
+Object.defineProperty(exports, "Statement", { enumerable: true, get: function () { return Statement_1.Statement; } });
+const Database_1 = require("./Database");
+Object.defineProperty(exports, "Database", { enumerable: true, get: function () { return Database_1.Database; } });
+/**
+ * Opens a database for manipulation. Most users will call this to get started.
+ */
+async function open(config) {
+    const db = new Database_1.Database(config);
+    await db.open();
+    return db;
+}
+exports.open = open;
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/node_modules/sqlite/build/index.js.map b/node_modules/sqlite/build/index.js.map
new file mode 100644
index 0000000..b22dbed
--- /dev/null
+++ b/node_modules/sqlite/build/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";AAAA,kDAAkD;;;AAGlD,2CAAuC;AAkBxB,0FAlBN,qBAAS,OAkBM;AAjBxB,yCAAqC;AAiBX,yFAjBjB,mBAAQ,OAiBiB;AAdlC;;GAEG;AACH,KAAK,UAAU,IAAI,CAGhB,MAAsB;IACvB,MAAM,EAAE,GAAG,IAAI,mBAAQ,CAAe,MAAM,CAAC,CAAA;IAE7C,MAAM,EAAE,CAAC,IAAI,EAAE,CAAA;IAEf,OAAO,EAAE,CAAA;AACX,CAAC;AAEQ,oBAAI"}
\ No newline at end of file
diff --git a/node_modules/sqlite/build/index.mjs b/node_modules/sqlite/build/index.mjs
new file mode 100644
index 0000000..8036ae1
--- /dev/null
+++ b/node_modules/sqlite/build/index.mjs
@@ -0,0 +1,12 @@
+export * from "./Statement.js";
+export * from "./Database.js";
+import Database from "./Database.js";
+
+/**
+ * Opens a database for manipulation. Most users will call this to get started.
+ */
+export async function open(config) {
+  const db = new Database.Database(config);
+  await db.open();
+  return db;
+}
diff --git a/node_modules/sqlite/build/interfaces.d.ts b/node_modules/sqlite/build/interfaces.d.ts
new file mode 100644
index 0000000..9d1d412
--- /dev/null
+++ b/node_modules/sqlite/build/interfaces.d.ts
@@ -0,0 +1,104 @@
+/// <reference types="./vendor-typings/sqlite3" />
+import * as sqlite3 from 'sqlite3';
+import { Statement } from './Statement';
+export declare namespace ISqlite {
+    interface SqlObj {
+        sql: string;
+        params?: any[];
+    }
+    interface SQLStatement {
+        sql: string;
+        values?: any[];
+    }
+    /**
+     * Allows for input of a normal SQL string or
+     * `sql-template-strings` object
+     */
+    type SqlType = SQLStatement | string;
+    interface Config {
+        /**
+         * Valid values are filenames, ":memory:" for an anonymous in-memory
+         * database and an empty string for an anonymous disk-based database.
+         * Anonymous databases are not persisted and when closing the database
+         * handle, their contents are lost.
+         */
+        filename: string;
+        /**
+         * One or more of sqlite3.OPEN_READONLY, sqlite3.OPEN_READWRITE and
+         * sqlite3.OPEN_CREATE. The default value is OPEN_READWRITE | OPEN_CREATE.
+         */
+        mode?: number;
+        /**
+         * The database driver. Most will install `sqlite3` and use the `Database` class from it.
+         * As long as the library you are using conforms to the `sqlite3` API, you can use it as
+         * the driver.
+         *
+         * @example
+         *
+         * ```
+         * import sqlite from 'sqlite3'
+         *
+         * const driver = sqlite.Database
+         * ```
+         */
+        driver: any;
+    }
+    type ConfigureOption = 'trace' | 'profile' | 'busyTimeout';
+    interface RunResult<Stmt extends sqlite3.Statement = sqlite3.Statement> {
+        /**
+         * Statement object.
+         *
+         * It is not possible to run the statement again because it is
+         * automatically finalized after running for the first time.
+         * Any subsequent attempts to run the statement again will fail.
+         */
+        stmt: Statement<Stmt>;
+        /**
+         * Row id of the inserted row.
+         *
+         * Only contains valid information when the query was a successfully
+         * completed INSERT statement.
+         */
+        lastID?: number;
+        /**
+         * Number of rows changed.
+         *
+         * Only contains valid information when the query was a
+         * successfully completed UPDATE or DELETE statement.
+         */
+        changes?: number;
+    }
+}
+export declare namespace IMigrate {
+    interface MigrationParams {
+        /**
+         * If true, will force the migration API to rollback and re-apply the latest migration over
+         * again each time when Node.js app launches.
+         */
+        force?: boolean;
+        /**
+         * Migrations table name. Default is 'migrations'
+         */
+        table?: string;
+        /**
+         * Path to the migrations folder. Default is `path.join(process.cwd(), 'migrations')`
+         */
+        migrationsPath?: string;
+        /**
+         * Migration data read from migrations folder. `migrationsPath` will be ignored if this is
+         * provided.
+         */
+        migrations?: readonly MigrationData[];
+    }
+    interface MigrationFile {
+        id: number;
+        name: string;
+        filename: string;
+    }
+    interface MigrationData {
+        id: number;
+        name: string;
+        up: string;
+        down: string;
+    }
+}
diff --git a/node_modules/sqlite/build/interfaces.js b/node_modules/sqlite/build/interfaces.js
new file mode 100644
index 0000000..c415969
--- /dev/null
+++ b/node_modules/sqlite/build/interfaces.js
@@ -0,0 +1,4 @@
+"use strict";
+/// <reference types="./vendor-typings/sqlite3" />
+Object.defineProperty(exports, "__esModule", { value: true });
+//# sourceMappingURL=interfaces.js.map
\ No newline at end of file
diff --git a/node_modules/sqlite/build/interfaces.js.map b/node_modules/sqlite/build/interfaces.js.map
new file mode 100644
index 0000000..df824f7
--- /dev/null
+++ b/node_modules/sqlite/build/interfaces.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"interfaces.js","sourceRoot":"","sources":["../src/interfaces.ts"],"names":[],"mappings":";AAAA,kDAAkD"}
\ No newline at end of file
diff --git a/node_modules/sqlite/build/utils/format-error.d.ts b/node_modules/sqlite/build/utils/format-error.d.ts
new file mode 100644
index 0000000..b0a2289
--- /dev/null
+++ b/node_modules/sqlite/build/utils/format-error.d.ts
@@ -0,0 +1 @@
+export declare function formatError(err: any): Error;
diff --git a/node_modules/sqlite/build/utils/format-error.js b/node_modules/sqlite/build/utils/format-error.js
new file mode 100644
index 0000000..98ec1a9
--- /dev/null
+++ b/node_modules/sqlite/build/utils/format-error.js
@@ -0,0 +1,25 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.formatError = void 0;
+function formatError(err) {
+    if (err instanceof Error) {
+        return err;
+    }
+    if (typeof err === 'object') {
+        const newError = new Error();
+        for (let prop in err) {
+            newError[prop] = err[prop];
+        }
+        // message isn't part of the enumerable set
+        if (err.message) {
+            newError.message = err.message;
+        }
+        return newError;
+    }
+    if (typeof err === 'string') {
+        return new Error(err);
+    }
+    return new Error(err);
+}
+exports.formatError = formatError;
+//# sourceMappingURL=format-error.js.map
\ No newline at end of file
diff --git a/node_modules/sqlite/build/utils/format-error.js.map b/node_modules/sqlite/build/utils/format-error.js.map
new file mode 100644
index 0000000..3c6cadf
--- /dev/null
+++ b/node_modules/sqlite/build/utils/format-error.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"format-error.js","sourceRoot":"","sources":["../../src/utils/format-error.ts"],"names":[],"mappings":";;;AAAA,SAAgB,WAAW,CAAE,GAAQ;IACnC,IAAI,GAAG,YAAY,KAAK,EAAE;QACxB,OAAO,GAAG,CAAA;KACX;IAED,IAAI,OAAO,GAAG,KAAK,QAAQ,EAAE;QAC3B,MAAM,QAAQ,GAAG,IAAI,KAAK,EAAE,CAAA;QAE5B,KAAK,IAAI,IAAI,IAAI,GAAG,EAAE;YACpB,QAAQ,CAAC,IAAI,CAAC,GAAG,GAAG,CAAC,IAAI,CAAC,CAAA;SAC3B;QAED,2CAA2C;QAC3C,IAAI,GAAG,CAAC,OAAO,EAAE;YACf,QAAQ,CAAC,OAAO,GAAG,GAAG,CAAC,OAAO,CAAA;SAC/B;QAED,OAAO,QAAQ,CAAA;KAChB;IAED,IAAI,OAAO,GAAG,KAAK,QAAQ,EAAE;QAC3B,OAAO,IAAI,KAAK,CAAC,GAAG,CAAC,CAAA;KACtB;IAED,OAAO,IAAI,KAAK,CAAC,GAAG,CAAC,CAAA;AACvB,CAAC;AAzBD,kCAyBC"}
\ No newline at end of file
diff --git a/node_modules/sqlite/build/utils/migrate.d.ts b/node_modules/sqlite/build/utils/migrate.d.ts
new file mode 100644
index 0000000..de44167
--- /dev/null
+++ b/node_modules/sqlite/build/utils/migrate.d.ts
@@ -0,0 +1,8 @@
+import { Database } from '../Database';
+import { IMigrate } from '../interfaces';
+import MigrationParams = IMigrate.MigrationParams;
+export declare function readMigrations(migrationPath?: string): Promise<IMigrate.MigrationData[]>;
+/**
+ * Migrates database schema to the latest version
+ */
+export declare function migrate(db: Database, config?: MigrationParams): Promise<void>;
diff --git a/node_modules/sqlite/build/utils/migrate.js b/node_modules/sqlite/build/utils/migrate.js
new file mode 100644
index 0000000..f1aefff
--- /dev/null
+++ b/node_modules/sqlite/build/utils/migrate.js
@@ -0,0 +1,108 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.migrate = exports.readMigrations = void 0;
+const fs = require("fs");
+const path = require("path");
+async function readMigrations(migrationPath) {
+    const migrationsPath = migrationPath || path.join(process.cwd(), 'migrations');
+    const location = path.resolve(migrationsPath);
+    // Get the list of migration files, for example:
+    //   { id: 1, name: 'initial', filename: '001-initial.sql' }
+    //   { id: 2, name: 'feature', filename: '002-feature.sql' }
+    const migrationFiles = await new Promise((resolve, reject) => {
+        fs.readdir(location, (err, files) => {
+            if (err) {
+                return reject(err);
+            }
+            resolve(files
+                .map(x => x.match(/^(\d+).(.*?)\.sql$/))
+                .filter(x => x !== null)
+                .map(x => ({ id: Number(x[1]), name: x[2], filename: x[0] }))
+                .sort((a, b) => Math.sign(a.id - b.id)));
+        });
+    });
+    if (!migrationFiles.length) {
+        throw new Error(`No migration files found in '${location}'.`);
+    }
+    // Get the list of migrations, for example:
+    //   { id: 1, name: 'initial', filename: '001-initial.sql', up: ..., down: ... }
+    //   { id: 2, name: 'feature', filename: '002-feature.sql', up: ..., down: ... }
+    return Promise.all(migrationFiles.map(migration => new Promise((resolve, reject) => {
+        const filename = path.join(location, migration.filename);
+        fs.readFile(filename, 'utf-8', (err, data) => {
+            if (err) {
+                return reject(err);
+            }
+            const [up, down] = data.split(/^--\s+?down\b/im);
+            const migrationData = migration;
+            migrationData.up = up.replace(/^-- .*?$/gm, '').trim(); // Remove comments
+            migrationData.down = down ? down.trim() : ''; // and trim whitespaces
+            resolve(migrationData);
+        });
+    })));
+}
+exports.readMigrations = readMigrations;
+/**
+ * Migrates database schema to the latest version
+ */
+async function migrate(db, config = {}) {
+    config.force = config.force || false;
+    config.table = config.table || 'migrations';
+    const { force, table } = config;
+    const migrations = config.migrations
+        ? config.migrations
+        : await readMigrations(config.migrationsPath);
+    // Create a database table for migrations meta data if it doesn't exist
+    await db.run(`CREATE TABLE IF NOT EXISTS "${table}" (
+  id   INTEGER PRIMARY KEY,
+  name TEXT    NOT NULL,
+  up   TEXT    NOT NULL,
+  down TEXT    NOT NULL
+)`);
+    // Get the list of already applied migrations
+    let dbMigrations = await db.all(`SELECT id, name, up, down FROM "${table}" ORDER BY id ASC`);
+    // Undo migrations that exist only in the database but not in files,
+    // also undo the last migration if the `force` option is enabled.
+    const lastMigration = migrations[migrations.length - 1];
+    for (const migration of dbMigrations
+        .slice()
+        .sort((a, b) => Math.sign(b.id - a.id))) {
+        if (!migrations.some(x => x.id === migration.id) ||
+            (force && migration.id === lastMigration.id)) {
+            await db.run('BEGIN');
+            try {
+                await db.exec(migration.down);
+                await db.run(`DELETE FROM "${table}" WHERE id = ?`, migration.id);
+                await db.run('COMMIT');
+                dbMigrations = dbMigrations.filter(x => x.id !== migration.id);
+            }
+            catch (err) {
+                await db.run('ROLLBACK');
+                throw err;
+            }
+        }
+        else {
+            break;
+        }
+    }
+    // Apply pending migrations
+    const lastMigrationId = dbMigrations.length
+        ? dbMigrations[dbMigrations.length - 1].id
+        : 0;
+    for (const migration of migrations) {
+        if (migration.id > lastMigrationId) {
+            await db.run('BEGIN');
+            try {
+                await db.exec(migration.up);
+                await db.run(`INSERT INTO "${table}" (id, name, up, down) VALUES (?, ?, ?, ?)`, migration.id, migration.name, migration.up, migration.down);
+                await db.run('COMMIT');
+            }
+            catch (err) {
+                await db.run('ROLLBACK');
+                throw err;
+            }
+        }
+    }
+}
+exports.migrate = migrate;
+//# sourceMappingURL=migrate.js.map
\ No newline at end of file
diff --git a/node_modules/sqlite/build/utils/migrate.js.map b/node_modules/sqlite/build/utils/migrate.js.map
new file mode 100644
index 0000000..1657500
--- /dev/null
+++ b/node_modules/sqlite/build/utils/migrate.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"migrate.js","sourceRoot":"","sources":["../../src/utils/migrate.ts"],"names":[],"mappings":";;;AAAA,yBAAwB;AACxB,6BAA4B;AAQrB,KAAK,UAAU,cAAc,CAAE,aAAsB;IAC1D,MAAM,cAAc,GAAG,aAAa,IAAI,IAAI,CAAC,IAAI,CAAC,OAAO,CAAC,GAAG,EAAE,EAAE,YAAY,CAAC,CAAA;IAC9E,MAAM,QAAQ,GAAG,IAAI,CAAC,OAAO,CAAC,cAAc,CAAC,CAAA;IAE7C,gDAAgD;IAChD,4DAA4D;IAC5D,4DAA4D;IAC5D,MAAM,cAAc,GAAG,MAAM,IAAI,OAAO,CACtC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;QAClB,EAAE,CAAC,OAAO,CAAC,QAAQ,EAAE,CAAC,GAAG,EAAE,KAAK,EAAE,EAAE;YAClC,IAAI,GAAG,EAAE;gBACP,OAAO,MAAM,CAAC,GAAG,CAAC,CAAA;aACnB;YAED,OAAO,CACL,KAAK;iBACF,GAAG,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC,KAAK,CAAC,oBAAoB,CAAC,CAAC;iBACvC,MAAM,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,KAAK,IAAI,CAAC;iBACvB,GAAG,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,EAAE,EAAE,EAAE,MAAM,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,EAAE,IAAI,EAAE,CAAC,CAAC,CAAC,CAAC,EAAE,QAAQ,EAAE,CAAC,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC;iBAC5D,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,EAAE,EAAE,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,GAAG,CAAC,CAAC,EAAE,CAAC,CAAC,CAC1C,CAAA;QACH,CAAC,CAAC,CAAA;IACJ,CAAC,CACF,CAAA;IAED,IAAI,CAAC,cAAc,CAAC,MAAM,EAAE;QAC1B,MAAM,IAAI,KAAK,CAAC,gCAAgC,QAAQ,IAAI,CAAC,CAAA;KAC9D;IAED,2CAA2C;IAC3C,gFAAgF;IAChF,gFAAgF;IAChF,OAAO,OAAO,CAAC,GAAG,CAChB,cAAc,CAAC,GAAG,CAChB,SAAS,CAAC,EAAE,CACV,IAAI,OAAO,CAAgB,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;QAC7C,MAAM,QAAQ,GAAG,IAAI,CAAC,IAAI,CAAC,QAAQ,EAAE,SAAS,CAAC,QAAQ,CAAC,CAAA;QACxD,EAAE,CAAC,QAAQ,CAAC,QAAQ,EAAE,OAAO,EAAE,CAAC,GAAG,EAAE,IAAI,EAAE,EAAE;YAC3C,IAAI,GAAG,EAAE;gBACP,OAAO,MAAM,CAAC,GAAG,CAAC,CAAA;aACnB;YAED,MAAM,CAAC,EAAE,EAAE,IAAI,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC,iBAAiB,CAAC,CAAA;YAEhD,MAAM,aAAa,GAAG,SAAmC,CAAA;YACzD,aAAa,CAAC,EAAE,GAAG,EAAE,CAAC,OAAO,CAAC,YAAY,EAAE,EAAE,CAAC,CAAC,IAAI,EAAE,CAAA,CAAC,kBAAkB;YACzE,aAAa,CAAC,IAAI,GAAG,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC,IAAI,EAAE,CAAC,CAAC,CAAC,EAAE,CAAA,CAAC,uBAAuB;YACpE,OAAO,CAAC,aAA8B,CAAC,CAAA;QACzC,CAAC,CAAC,CAAA;IACJ,CAAC,CAAC,CACL,CACF,CAAA;AACH,CAAC;AApDD,wCAoDC;AAED;;GAEG;AACI,KAAK,UAAU,OAAO,CAAE,EAAY,EAAE,SAA0B,EAAE;IACvE,MAAM,CAAC,KAAK,GAAG,MAAM,CAAC,KAAK,IAAI,KAAK,CAAA;IACpC,MAAM,CAAC,KAAK,GAAG,MAAM,CAAC,KAAK,IAAI,YAAY,CAAA;IAE3C,MAAM,EAAE,KAAK,EAAE,KAAK,EAAE,GAAG,MAAM,CAAA;IAC/B,MAAM,UAAU,GAAG,MAAM,CAAC,UAAU;QAClC,CAAC,CAAC,MAAM,CAAC,UAAU;QACnB,CAAC,CAAC,MAAM,cAAc,CAAC,MAAM,CAAC,cAAc,CAAC,CAAA;IAE/C,uEAAuE;IACvE,MAAM,EAAE,CAAC,GAAG,CAAC,+BAA+B,KAAK;;;;;EAKjD,CAAC,CAAA;IAED,6CAA6C;IAC7C,IAAI,YAAY,GAAG,MAAM,EAAE,CAAC,GAAG,CAC7B,mCAAmC,KAAK,mBAAmB,CAC5D,CAAA;IAED,oEAAoE;IACpE,iEAAiE;IACjE,MAAM,aAAa,GAAG,UAAU,CAAC,UAAU,CAAC,MAAM,GAAG,CAAC,CAAC,CAAA;IACvD,KAAK,MAAM,SAAS,IAAI,YAAY;SACjC,KAAK,EAAE;SACP,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,EAAE,EAAE,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,GAAG,CAAC,CAAC,EAAE,CAAC,CAAC,EAAE;QACzC,IACE,CAAC,UAAU,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC,EAAE,KAAK,SAAS,CAAC,EAAE,CAAC;YAC5C,CAAC,KAAK,IAAI,SAAS,CAAC,EAAE,KAAK,aAAa,CAAC,EAAE,CAAC,EAC5C;YACA,MAAM,EAAE,CAAC,GAAG,CAAC,OAAO,CAAC,CAAA;YACrB,IAAI;gBACF,MAAM,EAAE,CAAC,IAAI,CAAC,SAAS,CAAC,IAAI,CAAC,CAAA;gBAC7B,MAAM,EAAE,CAAC,GAAG,CAAC,gBAAgB,KAAK,gBAAgB,EAAE,SAAS,CAAC,EAAE,CAAC,CAAA;gBACjE,MAAM,EAAE,CAAC,GAAG,CAAC,QAAQ,CAAC,CAAA;gBACtB,YAAY,GAAG,YAAY,CAAC,MAAM,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC,EAAE,KAAK,SAAS,CAAC,EAAE,CAAC,CAAA;aAC/D;YAAC,OAAO,GAAG,EAAE;gBACZ,MAAM,EAAE,CAAC,GAAG,CAAC,UAAU,CAAC,CAAA;gBACxB,MAAM,GAAG,CAAA;aACV;SACF;aAAM;YACL,MAAK;SACN;KACF;IAED,2BAA2B;IAC3B,MAAM,eAAe,GAAG,YAAY,CAAC,MAAM;QACzC,CAAC,CAAC,YAAY,CAAC,YAAY,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,EAAE;QAC1C,CAAC,CAAC,CAAC,CAAA;IACL,KAAK,MAAM,SAAS,IAAI,UAAU,EAAE;QAClC,IAAI,SAAS,CAAC,EAAE,GAAG,eAAe,EAAE;YAClC,MAAM,EAAE,CAAC,GAAG,CAAC,OAAO,CAAC,CAAA;YACrB,IAAI;gBACF,MAAM,EAAE,CAAC,IAAI,CAAC,SAAS,CAAC,EAAE,CAAC,CAAA;gBAC3B,MAAM,EAAE,CAAC,GAAG,CACV,gBAAgB,KAAK,4CAA4C,EACjE,SAAS,CAAC,EAAE,EACZ,SAAS,CAAC,IAAI,EACd,SAAS,CAAC,EAAE,EACZ,SAAS,CAAC,IAAI,CACf,CAAA;gBACD,MAAM,EAAE,CAAC,GAAG,CAAC,QAAQ,CAAC,CAAA;aACvB;YAAC,OAAO,GAAG,EAAE;gBACZ,MAAM,EAAE,CAAC,GAAG,CAAC,UAAU,CAAC,CAAA;gBACxB,MAAM,GAAG,CAAA;aACV;SACF;KACF;AACH,CAAC;AAtED,0BAsEC"}
\ No newline at end of file
diff --git a/node_modules/sqlite/build/utils/strings.d.ts b/node_modules/sqlite/build/utils/strings.d.ts
new file mode 100644
index 0000000..123e1f1
--- /dev/null
+++ b/node_modules/sqlite/build/utils/strings.d.ts
@@ -0,0 +1,9 @@
+import { ISqlite } from '../interfaces';
+/**
+ * Allows for using strings and `sql-template-strings`. Converts both to a
+ * format that's usable by the SQL methods
+ *
+ * @param sql A SQL string or `sql-template-strings` object
+ * @param params An array of parameters
+ */
+export declare function toSqlParams(sql: ISqlite.SqlType, params?: any[]): ISqlite.SqlObj;
diff --git a/node_modules/sqlite/build/utils/strings.js b/node_modules/sqlite/build/utils/strings.js
new file mode 100644
index 0000000..b91ad19
--- /dev/null
+++ b/node_modules/sqlite/build/utils/strings.js
@@ -0,0 +1,24 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.toSqlParams = void 0;
+/**
+ * Allows for using strings and `sql-template-strings`. Converts both to a
+ * format that's usable by the SQL methods
+ *
+ * @param sql A SQL string or `sql-template-strings` object
+ * @param params An array of parameters
+ */
+function toSqlParams(sql, params = []) {
+    if (typeof sql === 'string') {
+        return {
+            sql,
+            params
+        };
+    }
+    return {
+        sql: sql.sql,
+        params: sql.values
+    };
+}
+exports.toSqlParams = toSqlParams;
+//# sourceMappingURL=strings.js.map
\ No newline at end of file
diff --git a/node_modules/sqlite/build/utils/strings.js.map b/node_modules/sqlite/build/utils/strings.js.map
new file mode 100644
index 0000000..4df3b40
--- /dev/null
+++ b/node_modules/sqlite/build/utils/strings.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"strings.js","sourceRoot":"","sources":["../../src/utils/strings.ts"],"names":[],"mappings":";;;AAEA;;;;;;GAMG;AACH,SAAgB,WAAW,CACzB,GAAoB,EACpB,SAAgB,EAAE;IAElB,IAAI,OAAO,GAAG,KAAK,QAAQ,EAAE;QAC3B,OAAO;YACL,GAAG;YACH,MAAM;SACP,CAAA;KACF;IAED,OAAO;QACL,GAAG,EAAE,GAAG,CAAC,GAAG;QACZ,MAAM,EAAE,GAAG,CAAC,MAAM;KACnB,CAAA;AACH,CAAC;AAfD,kCAeC"}
\ No newline at end of file
diff --git a/node_modules/sqlite/build/vendor-typings/sqlite3/index.d.ts b/node_modules/sqlite/build/vendor-typings/sqlite3/index.d.ts
new file mode 100644
index 0000000..c934901
--- /dev/null
+++ b/node_modules/sqlite/build/vendor-typings/sqlite3/index.d.ts
@@ -0,0 +1,180 @@
+/// <reference types="node" />
+
+declare module 'sqlite3' {
+  // Type definitions for sqlite3 3.1
+  // Project: http://github.com/mapbox/node-sqlite3
+  // Definitions by: Nick Malaguti <https://github.com/nmalaguti>
+  //                 Sumant Manne <https://github.com/dpyro>
+  //                 Behind The Math <https://github.com/BehindTheMath>
+  // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+  import events = require('events')
+
+  export const OPEN_READONLY: number
+  export const OPEN_READWRITE: number
+  export const OPEN_CREATE: number
+  export const OPEN_SHAREDCACHE: number
+  export const OPEN_PRIVATECACHE: number
+  export const OPEN_URI: number
+
+  export const cached: {
+    Database(
+      filename: string,
+      callback?: (this: Database, err: Error | null) => void
+    ): Database
+    Database(
+      filename: string,
+      mode?: number,
+      callback?: (this: Database, err: Error | null) => void
+    ): Database
+  }
+
+  export interface RunResult extends Statement {
+    lastID: number
+    changes: number
+  }
+
+  export class Statement {
+    bind (callback?: (err: Error | null) => void): this
+    bind (...params: any[]): this
+
+    reset (callback?: (err: null) => void): this
+
+    finalize (callback?: (err: Error) => void): Database
+
+    run (callback?: (err: Error | null) => void): this
+    run (
+      params: any,
+      callback?: (this: RunResult, err: Error | null) => void
+    ): this
+    run (...params: any[]): this
+
+    get (callback?: (err: Error | null, row?: any) => void): this
+    get (
+      params: any,
+      callback?: (this: RunResult, err: Error | null, row?: any) => void
+    ): this
+    get (...params: any[]): this
+
+    all (callback?: (err: Error | null, rows: any[]) => void): this
+    all (
+      params: any,
+      callback?: (this: RunResult, err: Error | null, rows: any[]) => void
+    ): this
+    all (...params: any[]): this
+
+    each (
+      callback?: (err: Error | null, row: any) => void,
+      complete?: (err: Error | null, count: number) => void
+    ): this
+    each (
+      params: any,
+      callback?: (this: RunResult, err: Error | null, row: any) => void,
+      complete?: (err: Error | null, count: number) => void
+    ): this
+    each (...params: any[]): this
+  }
+
+  export class Database extends events.EventEmitter {
+    constructor (filename: string, callback?: (err: Error | null) => void)
+    constructor (
+      filename: string,
+      mode?: number,
+      callback?: (err: Error | null) => void
+    )
+
+    close (callback?: (err: Error | null) => void): void
+
+    run (
+      sql: string,
+      callback?: (this: RunResult, err: Error | null) => void
+    ): this
+    run (
+      sql: string,
+      params: any,
+      callback?: (this: RunResult, err: Error | null) => void
+    ): this
+    run (sql: string, ...params: any[]): this
+
+    get (
+      sql: string,
+      callback?: (this: Statement, err: Error | null, row: any) => void
+    ): this
+    get (
+      sql: string,
+      params: any,
+      callback?: (this: Statement, err: Error | null, row: any) => void
+    ): this
+    get (sql: string, ...params: any[]): this
+
+    all (
+      sql: string,
+      callback?: (this: Statement, err: Error | null, rows: any[]) => void
+    ): this
+    all (
+      sql: string,
+      params: any,
+      callback?: (this: Statement, err: Error | null, rows: any[]) => void
+    ): this
+    all (sql: string, ...params: any[]): this
+
+    each (
+      sql: string,
+      callback?: (this: Statement, err: Error | null, row: any) => void,
+      complete?: (err: Error | null, count: number) => void
+    ): this
+    each (
+      sql: string,
+      params: any,
+      callback?: (this: Statement, err: Error | null, row: any) => void,
+      complete?: (err: Error | null, count: number) => void
+    ): this
+    each (sql: string, ...params: any[]): this
+
+    exec (
+      sql: string,
+      callback?: (this: Statement, err: Error | null) => void
+    ): this
+
+    prepare (
+      sql: string,
+      callback?: (this: Statement, err: Error | null) => void
+    ): Statement
+    prepare (
+      sql: string,
+      params: any,
+      callback?: (this: Statement, err: Error | null) => void
+    ): Statement
+    prepare (sql: string, ...params: any[]): Statement
+
+    serialize (callback?: () => void): void
+    parallelize (callback?: () => void): void
+
+    on (event: 'trace', listener: (sql: string) => void): this
+    on (event: 'profile', listener: (sql: string, time: number) => void): this
+    on (event: 'error', listener: (err: Error) => void): this
+    on (event: 'open' | 'close', listener: () => void): this
+    on (event: string, listener: (...args: any[]) => void): this
+
+    configure (option: 'busyTimeout', value: number): void
+    interrupt (): void
+
+    loadExtension (path: string, callback?: (err: Error | null) => void): void
+  }
+
+  export function verbose (): sqlite3
+
+  export interface sqlite3 {
+    OPEN_READONLY: number
+    OPEN_READWRITE: number
+    OPEN_CREATE: number
+    OPEN_SHAREDCACHE: number
+    OPEN_PRIVATECACHE: number
+    OPEN_URI: number
+    cached: typeof cached
+    RunResult: RunResult
+    Statement: typeof Statement
+    Database: typeof Database
+    verbose(): this
+  }
+}
diff --git a/node_modules/sqlite/package.json b/node_modules/sqlite/package.json
new file mode 100644
index 0000000..ab34387
--- /dev/null
+++ b/node_modules/sqlite/package.json
@@ -0,0 +1,135 @@
+{
+  "name": "sqlite",
+  "version": "5.0.1",
+  "description": "SQLite client for Node.js applications with SQL-based migrations API written in Typescript",
+  "main": "build/index.js",
+  "types": "build/index.d.ts",
+  "type": "commonjs",
+  "exports": {
+    "types": "./build/index.d.ts",
+    "require": "./build/index.js",
+    "import": "./build/index.mjs"
+  },
+  "scripts": {
+    "build": "npm run build:clean && npm run compile && cp -R src/index.mjs src/vendor-typings build",
+    "build:docs": "typedoc --options typedoc.js --plugin typedoc-plugin-markdown src/ --out docs",
+    "build:clean": "rm -rf build/*",
+    "compile": "tsc",
+    "debug": "ts-node-dev --inspect -- src/index.ts",
+    "debug:break": "ts-node-dev --inspect-brk -- src/index.ts",
+    "test": "jest",
+    "test:ci": "jest --ci --coverage",
+    "test:debug": "node --inspect-brk node_modules/.bin/jest",
+    "test:watch": "jest --watch",
+    "test:coverage:watch": "jest --coverage --watch",
+    "toc": "toc-md README.md README.md",
+    "lint-staged": "lint-staged",
+    "prepare-publish": "npm run changelog:prepare && version-bump && npm run changelog:release && npm run changelog:stamp",
+    "add-readme": "git add README.md",
+    "version-bump": "version-bump",
+    "changelog:help": "changelog-version",
+    "changelog:verify": "changelog-version verify",
+    "changelog:prepare": "changelog-version prepare",
+    "changelog:stamp": "git-commit-stamper parse CHANGELOG.md",
+    "changelog:release": "changelog-version release",
+    "lint": "standard --fix",
+    "ts-node-dev": "ts-node-dev"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/kriasoft/node-sqlite.git"
+  },
+  "author": "Kriasoft <hello@kriasoft.com> (https://www.kriasoft.com)",
+  "contributors": [
+    "Konstantin Tarkus <hello@tarkus.me> (https://twitter.com/koistya)",
+    "Theo Gravity <theo@suteki.nu> (https://theogravity.com)"
+  ],
+  "keywords": [
+    "sqlite",
+    "db",
+    "database",
+    "sql",
+    "migrate",
+    "migration",
+    "migrations",
+    "migrator",
+    "seed",
+    "seeds",
+    "seeder",
+    "node",
+    "node5",
+    "babel",
+    "es6",
+    "async",
+    "promise",
+    "promises",
+    "api"
+  ],
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/kriasoft/node-sqlite/issues"
+  },
+  "homepage": "https://github.com/kriasoft/node-sqlite#readme",
+  "devDependencies": {
+    "@theo.gravity/changelog-version": "2.1.11",
+    "@theo.gravity/version-bump": "2.0.14",
+    "@types/jest": "27.4.1",
+    "@types/node": "^17.0.25",
+    "@types/sqlite3": "^3.1.8",
+    "@typescript-eslint/eslint-plugin": "^5.20.0",
+    "@typescript-eslint/parser": "^5.20.0",
+    "eslint": "8.14.0",
+    "git-commit-stamper": "^1.0.10",
+    "jest": "27.5.1",
+    "jest-cli": "27.5.1",
+    "jest-junit-reporter": "1.1.0",
+    "lint-staged": "12.4.0",
+    "pre-commit": "1.2.2",
+    "prettier-standard": "^15.0.1",
+    "sql-template-strings": "^2.2.2",
+    "sqlite3": "^5.0.5",
+    "sqlite3-offline-next": "^5.0.3",
+    "standardx": "^7.0.0",
+    "toc-md-alt": "^0.4.6",
+    "ts-jest": "27.1.4",
+    "ts-node": "10.7.0",
+    "ts-node-dev": "1.1.8",
+    "typedoc": "^0.22.15",
+    "typedoc-plugin-markdown": "^3.12.1",
+    "typescript": "4.6.3",
+    "version-bump-plugin-git": "^2.0.1"
+  },
+  "eslintConfig": {
+    "parserOptions": {
+      "ecmaVersion": 6,
+      "sourceType": "module",
+      "ecmaFeatures": {
+        "modules": true
+      }
+    },
+    "parser": "@typescript-eslint/parser",
+    "plugins": [
+      "@typescript-eslint/eslint-plugin"
+    ],
+    "rules": {
+      "@typescript-eslint/no-unused-vars": [
+        2,
+        {
+          "args": "none"
+        }
+      ]
+    }
+  },
+  "lint-staged": {
+    "src/**/*.ts": [
+      "prettier-standard",
+      "git add"
+    ]
+  },
+  "pre-commit": [
+    "toc",
+    "lint-staged",
+    "test:ci",
+    "build"
+  ]
+}
diff --git a/node_modules/sqlite3/LICENSE b/node_modules/sqlite3/LICENSE
new file mode 100644
index 0000000..6c4ce40
--- /dev/null
+++ b/node_modules/sqlite3/LICENSE
@@ -0,0 +1,25 @@
+Copyright (c) MapBox
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+- Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+- Redistributions in binary form must reproduce the above copyright notice, this
+  list of conditions and the following disclaimer in the documentation and/or
+  other materials provided with the distribution.
+- Neither the name "MapBox" nor the names of its contributors may be
+  used to endorse or promote products derived from this software without
+  specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file
diff --git a/node_modules/sqlite3/README.md b/node_modules/sqlite3/README.md
new file mode 100644
index 0000000..db1200b
--- /dev/null
+++ b/node_modules/sqlite3/README.md
@@ -0,0 +1,261 @@
+# ⚙️ node-sqlite3
+
+Asynchronous, non-blocking [SQLite3](https://sqlite.org/) bindings for [Node.js](http://nodejs.org/).
+
+[![Latest release](https://img.shields.io/github/release/TryGhost/node-sqlite3.svg)](https://www.npmjs.com/package/sqlite3)
+![Build Status](https://github.com/TryGhost/node-sqlite3/workflows/CI/badge.svg?branch=master)
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fmapbox%2Fnode-sqlite3.svg?type=shield)](https://app.fossa.io/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fmapbox%2Fnode-sqlite3?ref=badge_shield)
+[![N-API v3 Badge](https://img.shields.io/badge/N--API-v3-green.svg)](https://nodejs.org/dist/latest/docs/api/n-api.html#n_api_n_api)
+[![N-API v6 Badge](https://img.shields.io/badge/N--API-v6-green.svg)](https://nodejs.org/dist/latest/docs/api/n-api.html#n_api_n_api)
+
+# Features
+
+ - Straightforward query and parameter binding interface
+ - Full Buffer/Blob support
+ - Extensive [debugging support](https://github.com/tryghost/node-sqlite3/wiki/Debugging)
+ - [Query serialization](https://github.com/tryghost/node-sqlite3/wiki/Control-Flow) API
+ - [Extension support](https://github.com/TryGhost/node-sqlite3/wiki/API#databaseloadextensionpath-callback), including bundled support for the [json1 extension](https://www.sqlite.org/json1.html)
+ - Big test suite
+ - Written in modern C++ and tested for memory leaks
+ - Bundles SQLite v3.41.1, or you can build using a local SQLite
+
+# Installing
+
+You can use [`npm`](https://github.com/npm/cli) or [`yarn`](https://github.com/yarnpkg/yarn) to install `sqlite3`:
+
+* (recommended) Latest published package:
+```bash
+npm install sqlite3
+# or
+yarn add sqlite3
+```
+* GitHub's `master` branch: `npm install https://github.com/tryghost/node-sqlite3/tarball/master`
+
+### Prebuilt binaries
+
+`sqlite3` v5+ was rewritten to use [Node-API](https://nodejs.org/api/n-api.html) so prebuilt binaries do not need to be built for specific Node versions. `sqlite3` currently builds for both Node-API v3 and v6. Check the [Node-API version matrix](https://nodejs.org/api/n-api.html#node-api-version-matrix) to ensure your Node version supports one of these. The prebuilt binaries should be supported on Node v10+.
+
+The module uses [node-pre-gyp](https://github.com/mapbox/node-pre-gyp) to download the prebuilt binary for your platform, if it exists. These binaries are hosted on GitHub Releases for `sqlite3` versions above 5.0.2, and they are hosted on S3 otherwise. The following targets are currently provided:
+
+Format: `napi-v{napi_build_version}-{platform}-{libc}-{arch}`
+
+* `napi-v3-darwin-unknown-arm64`
+* `napi-v3-darwin-unknown-x64`
+* `napi-v3-linux-glibc-arm64`
+* `napi-v3-linux-glibc-x64`
+* `napi-v3-linux-musl-arm64`
+* `napi-v3-linux-musl-x64`
+* `napi-v3-win32-unknown-ia32`
+* `napi-v3-win32-unknown-x64`
+* `napi-v6-darwin-unknown-arm64`
+* `napi-v6-darwin-unknown-x64`
+* `napi-v6-linux-glibc-arm64`
+* `napi-v6-linux-glibc-x64`
+* `napi-v6-linux-musl-arm64`
+* `napi-v6-linux-musl-x64`
+* `napi-v6-win32-unknown-ia32`
+* `napi-v6-win32-unknown-x64`
+
+Unfortunately, [node-pre-gyp](https://github.com/mapbox/node-pre-gyp) cannot differentiate between `armv6` and `armv7`, and instead uses `arm` as the `{arch}`. Until that is fixed, you will still need to install `sqlite3` from [source](#source-install).
+
+Support for other platforms and architectures may be added in the future if CI supports building on them.
+
+If your environment isn't supported, it'll use `node-gyp` to build SQLite but you will need to install a C++ compiler and linker.
+
+### Other ways to install
+
+It is also possible to make your own build of `sqlite3` from its source instead of its npm package ([See below.](#source-install)).
+
+The `sqlite3` module also works with [node-webkit](https://github.com/rogerwang/node-webkit) if node-webkit contains a supported version of Node.js engine. [(See below.)](#building-for-node-webkit)
+
+SQLite's [SQLCipher extension](https://github.com/sqlcipher/sqlcipher) is also supported. [(See below.)](#building-for-sqlcipher)
+
+# API
+
+See the [API documentation](https://github.com/TryGhost/node-sqlite3/wiki/API) in the wiki.
+
+# Usage
+
+**Note:** the module must be [installed](#installing) before use.
+
+``` js
+const sqlite3 = require('sqlite3').verbose();
+const db = new sqlite3.Database(':memory:');
+
+db.serialize(() => {
+    db.run("CREATE TABLE lorem (info TEXT)");
+
+    const stmt = db.prepare("INSERT INTO lorem VALUES (?)");
+    for (let i = 0; i < 10; i++) {
+        stmt.run("Ipsum " + i);
+    }
+    stmt.finalize();
+
+    db.each("SELECT rowid AS id, info FROM lorem", (err, row) => {
+        console.log(row.id + ": " + row.info);
+    });
+});
+
+db.close();
+```
+
+## Source install
+
+To skip searching for pre-compiled binaries, and force a build from source, use
+
+```bash
+npm install --build-from-source
+```
+
+The sqlite3 module depends only on libsqlite3. However, by default, an internal/bundled copy of sqlite will be built and statically linked, so an externally installed sqlite3 is not required.
+
+If you wish to install against an external sqlite then you need to pass the `--sqlite` argument to `npm` wrapper:
+
+```bash
+npm install --build-from-source --sqlite=/usr/local
+```
+
+If building against an external sqlite3 make sure to have the development headers available. Mac OS X ships with these by default. If you don't have them installed, install the `-dev` package with your package manager, e.g. `apt-get install libsqlite3-dev` for Debian/Ubuntu. Make sure that you have at least `libsqlite3` >= 3.6.
+
+Note, if building against homebrew-installed sqlite on OS X you can do:
+
+```bash
+npm install --build-from-source --sqlite=/usr/local/opt/sqlite/
+```
+
+## Custom file header (magic)
+
+The default sqlite file header is "SQLite format 3". You can specify a different magic, though this will make standard tools and libraries unable to work with your files.
+
+```bash
+npm install --build-from-source --sqlite_magic="MyCustomMagic15"
+```
+
+Note that the magic *must* be exactly 15 characters long (16 bytes including null terminator).
+
+## Building for node-webkit
+
+Because of ABI differences, `sqlite3` must be built in a custom to be used with [node-webkit](https://github.com/rogerwang/node-webkit).
+
+To build `sqlite3` for node-webkit:
+
+1. Install [`nw-gyp`](https://github.com/rogerwang/nw-gyp) globally: `npm install nw-gyp -g` *(unless already installed)*
+
+2. Build the module with the custom flags of `--runtime`, `--target_arch`, and `--target`:
+
+```bash
+NODE_WEBKIT_VERSION="0.8.6" # see latest version at https://github.com/rogerwang/node-webkit#downloads
+npm install sqlite3 --build-from-source --runtime=node-webkit --target_arch=ia32 --target=$(NODE_WEBKIT_VERSION)
+```
+
+This command internally calls out to [`node-pre-gyp`](https://github.com/mapbox/node-pre-gyp) which itself calls out to [`nw-gyp`](https://github.com/rogerwang/nw-gyp) when the `--runtime=node-webkit` option is passed.
+
+You can also run this command from within a `sqlite3` checkout:
+
+```bash
+npm install --build-from-source --runtime=node-webkit --target_arch=ia32 --target=$(NODE_WEBKIT_VERSION)
+```
+
+Remember the following:
+
+* You must provide the right `--target_arch` flag. `ia32` is needed to target 32bit node-webkit builds, while `x64` will target 64bit node-webkit builds (if available for your platform).
+
+* After the `sqlite3` package is built for node-webkit it cannot run in the vanilla Node.js (and vice versa).
+   * For example, `npm test` of the node-webkit's package would fail.
+
+Visit the “[Using Node modules](https://github.com/rogerwang/node-webkit/wiki/Using-Node-modules)” article in the node-webkit's wiki for more details.
+
+## Building for SQLCipher
+
+For instructions on building SQLCipher, see [Building SQLCipher for Node.js](https://coolaj86.com/articles/building-sqlcipher-for-node-js-on-raspberry-pi-2/). Alternatively, you can install it with your local package manager.
+
+To run against SQLCipher, you need to compile `sqlite3` from source by passing build options like:
+
+```bash
+npm install sqlite3 --build-from-source --sqlite_libname=sqlcipher --sqlite=/usr/
+
+node -e 'require("sqlite3")'
+```
+
+If your SQLCipher is installed in a custom location (if you compiled and installed it yourself), you'll need to set some environment variables:
+
+### On OS X with Homebrew
+
+Set the location where `brew` installed it:
+
+```bash
+export LDFLAGS="-L`brew --prefix`/opt/sqlcipher/lib"
+export CPPFLAGS="-I`brew --prefix`/opt/sqlcipher/include/sqlcipher"
+npm install sqlite3 --build-from-source --sqlite_libname=sqlcipher --sqlite=`brew --prefix`
+
+node -e 'require("sqlite3")'
+```
+
+### On most Linuxes (including Raspberry Pi)
+
+Set the location where `make` installed it:
+
+```bash
+export LDFLAGS="-L/usr/local/lib"
+export CPPFLAGS="-I/usr/local/include -I/usr/local/include/sqlcipher"
+export CXXFLAGS="$CPPFLAGS"
+npm install sqlite3 --build-from-source --sqlite_libname=sqlcipher --sqlite=/usr/local --verbose
+
+node -e 'require("sqlite3")'
+```
+
+### Custom builds and Electron
+
+Running `sqlite3` through [electron-rebuild](https://github.com/electron/electron-rebuild) does not preserve the SQLCipher extension, so some additional flags are needed to make this build Electron compatible. Your `npm install sqlite3 --build-from-source` command needs these additional flags (be sure to replace the target version with the current Electron version you are working with):
+
+```bash
+--runtime=electron --target=18.2.1 --dist-url=https://electronjs.org/headers
+```
+
+In the case of MacOS with Homebrew, the command should look like the following:
+
+```bash
+npm install sqlite3 --build-from-source --sqlite_libname=sqlcipher --sqlite=`brew --prefix` --runtime=electron --target=18.2.1 --dist-url=https://electronjs.org/headers
+```
+
+# Testing
+
+```bash
+npm test
+```
+
+# Contributors
+
+* [Daniel Lockyer](https://github.com/daniellockyer)
+* [Konstantin Käfer](https://github.com/kkaefer)
+* [Dane Springmeyer](https://github.com/springmeyer)
+* [Will White](https://github.com/willwhite)
+* [Orlando Vazquez](https://github.com/orlandov)
+* [Artem Kustikov](https://github.com/artiz)
+* [Eric Fredricksen](https://github.com/grumdrig)
+* [John Wright](https://github.com/mrjjwright)
+* [Ryan Dahl](https://github.com/ry)
+* [Tom MacWright](https://github.com/tmcw)
+* [Carter Thaxton](https://github.com/carter-thaxton)
+* [Audrius Kažukauskas](https://github.com/audriusk)
+* [Johannes Schauer](https://github.com/pyneo)
+* [Mithgol](https://github.com/Mithgol)
+* [Kewde](https://github.com/kewde)
+
+# Acknowledgments
+
+Thanks to [Orlando Vazquez](https://github.com/orlandov),
+[Eric Fredricksen](https://github.com/grumdrig) and
+[Ryan Dahl](https://github.com/ry) for their SQLite bindings for node, and to mraleph on Freenode's #v8 for answering questions.
+
+This module was originally created by [Mapbox](https://mapbox.com/) & is now maintained by [Ghost](https://ghost.org).
+
+# Changelog
+
+We use [GitHub releases](https://github.com/TryGhost/node-sqlite3/releases) for notes on the latest versions. See [CHANGELOG.md](https://github.com/TryGhost/node-sqlite3/blob/b05f4594cf8b0de64743561fcd2cfe6f4571754d/CHANGELOG.md) in git history for details on older versions.
+
+# License
+
+`node-sqlite3` is [BSD licensed](https://github.com/tryghost/node-sqlite3/raw/master/LICENSE).
+
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fmapbox%2Fnode-sqlite3.svg?type=large)](https://app.fossa.io/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fmapbox%2Fnode-sqlite3?ref=badge_large)
diff --git a/node_modules/sqlite3/binding.gyp b/node_modules/sqlite3/binding.gyp
new file mode 100644
index 0000000..20d418b
--- /dev/null
+++ b/node_modules/sqlite3/binding.gyp
@@ -0,0 +1,68 @@
+{
+  "includes": [ "deps/common-sqlite.gypi" ],
+  "variables": {
+      "sqlite%":"internal",
+      "sqlite_libname%":"sqlite3"
+  },
+  "targets": [
+    {
+      "target_name": "<(module_name)",
+      "cflags!": [ "-fno-exceptions" ],
+      "cflags_cc!": [ "-fno-exceptions" ],
+      "xcode_settings": { "GCC_ENABLE_CPP_EXCEPTIONS": "YES",
+        "CLANG_CXX_LIBRARY": "libc++",
+        "MACOSX_DEPLOYMENT_TARGET": "10.7",
+      },
+      "msvs_settings": {
+        "VCCLCompilerTool": { "ExceptionHandling": 1 },
+      },
+      "include_dirs": [
+        "<!@(node -p \"require('node-addon-api').include\")"],
+      "conditions": [
+        ["sqlite != 'internal'", {
+            "include_dirs": [
+              "<!@(node -p \"require('node-addon-api').include\")", "<(sqlite)/include" ],
+            "libraries": [
+               "-l<(sqlite_libname)"
+            ],
+            "conditions": [
+              [ "OS=='linux'", {"libraries+":["-Wl,-rpath=<@(sqlite)/lib"]} ],
+              [ "OS!='win'", {"libraries+":["-L<@(sqlite)/lib"]} ]
+            ],
+            'msvs_settings': {
+              'VCLinkerTool': {
+                'AdditionalLibraryDirectories': [
+                  '<(sqlite)/lib'
+                ],
+              },
+            }
+        },
+        {
+            "dependencies": [
+              "<!(node -p \"require('node-addon-api').gyp\")",
+              "deps/sqlite3.gyp:sqlite3"
+            ]
+        }
+        ]
+      ],
+      "sources": [
+        "src/backup.cc",
+        "src/database.cc",
+        "src/node_sqlite3.cc",
+        "src/statement.cc"
+      ],
+      "defines": [ "NAPI_VERSION=<(napi_build_version)", "NAPI_DISABLE_CPP_EXCEPTIONS=1" ]
+    },
+    {
+      "target_name": "action_after_build",
+      "type": "none",
+      "dependencies": [ "<(module_name)" ],
+      "copies": [
+          {
+            "files": [ "<(PRODUCT_DIR)/<(module_name).node" ],
+            "destination": "<(module_path)"
+          }
+      ]
+    }
+  ]
+}
diff --git a/node_modules/sqlite3/deps/common-sqlite.gypi b/node_modules/sqlite3/deps/common-sqlite.gypi
new file mode 100644
index 0000000..9d70d3b
--- /dev/null
+++ b/node_modules/sqlite3/deps/common-sqlite.gypi
@@ -0,0 +1,60 @@
+{
+  'variables': {
+      'sqlite_version%':'3410100',
+      "toolset%":'',
+  },
+  'target_defaults': {
+    'default_configuration': 'Release',
+    'conditions': [
+      [ 'toolset!=""', {
+        'msbuild_toolset':'<(toolset)'
+      }]
+    ],
+    'configurations': {
+      'Debug': {
+        'defines!': [
+          'NDEBUG'
+        ],
+        'cflags_cc!': [
+          '-O3',
+          '-Os',
+          '-DNDEBUG'
+        ],
+        'xcode_settings': {
+          'OTHER_CPLUSPLUSFLAGS!': [
+            '-O3',
+            '-Os',
+            '-DDEBUG'
+          ],
+          'GCC_OPTIMIZATION_LEVEL': '0',
+          'GCC_GENERATE_DEBUGGING_SYMBOLS': 'YES'
+        },
+        'msvs_settings': {
+          'VCCLCompilerTool': {
+            'ExceptionHandling': 1, # /EHsc
+          }
+        }
+      },
+      'Release': {
+        'defines': [
+          'NDEBUG'
+        ],
+        'xcode_settings': {
+          'OTHER_CPLUSPLUSFLAGS!': [
+            '-Os',
+            '-O2'
+          ],
+          'GCC_OPTIMIZATION_LEVEL': '3',
+          'GCC_GENERATE_DEBUGGING_SYMBOLS': 'NO',
+          'DEAD_CODE_STRIPPING': 'YES',
+          'GCC_INLINES_ARE_PRIVATE_EXTERN': 'YES'
+        },
+        'msvs_settings': {
+          'VCCLCompilerTool': {
+            'ExceptionHandling': 1, # /EHsc
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/node_modules/sqlite3/deps/extract.js b/node_modules/sqlite3/deps/extract.js
new file mode 100644
index 0000000..46aed47
--- /dev/null
+++ b/node_modules/sqlite3/deps/extract.js
@@ -0,0 +1,10 @@
+const tar = require("tar");
+const path = require("path");
+const tarball = path.resolve(process.argv[2]);
+const dirname = path.resolve(process.argv[3]);
+
+tar.extract({
+    sync: true,
+    file: tarball,
+    cwd: dirname,
+});
diff --git a/node_modules/sqlite3/deps/sqlite-autoconf-3410100.tar.gz b/node_modules/sqlite3/deps/sqlite-autoconf-3410100.tar.gz
new file mode 100644
index 0000000..f0a9142
Binary files /dev/null and b/node_modules/sqlite3/deps/sqlite-autoconf-3410100.tar.gz differ
diff --git a/node_modules/sqlite3/deps/sqlite3.gyp b/node_modules/sqlite3/deps/sqlite3.gyp
new file mode 100644
index 0000000..660b3b0
--- /dev/null
+++ b/node_modules/sqlite3/deps/sqlite3.gyp
@@ -0,0 +1,121 @@
+{
+  'includes': [ 'common-sqlite.gypi' ],
+
+  'variables': {
+    'sqlite_magic%': '',
+  },
+
+  'target_defaults': {
+    'default_configuration': 'Release',
+    'cflags':[
+      '-std=c99'
+    ],
+    'configurations': {
+      'Debug': {
+        'defines': [ 'DEBUG', '_DEBUG' ],
+        'msvs_settings': {
+          'VCCLCompilerTool': {
+            'RuntimeLibrary': 1, # static debug
+          },
+        },
+      },
+      'Release': {
+        'defines': [ 'NDEBUG' ],
+        'msvs_settings': {
+          'VCCLCompilerTool': {
+            'RuntimeLibrary': 0, # static release
+          },
+        },
+      }
+    },
+    'msvs_settings': {
+      'VCCLCompilerTool': {
+      },
+      'VCLibrarianTool': {
+      },
+      'VCLinkerTool': {
+        'GenerateDebugInformation': 'true',
+      },
+    },
+    'conditions': [
+      ['OS == "win"', {
+        'defines': [
+          'WIN32'
+        ],
+      }]
+    ],
+  },
+
+  'targets': [
+    {
+      'target_name': 'action_before_build',
+      'type': 'none',
+      'hard_dependency': 1,
+      'actions': [
+        {
+          'action_name': 'unpack_sqlite_dep',
+          'inputs': [
+            './sqlite-autoconf-<@(sqlite_version).tar.gz'
+          ],
+          'outputs': [
+            '<(SHARED_INTERMEDIATE_DIR)/sqlite-autoconf-<@(sqlite_version)/sqlite3.c'
+          ],
+          'action': ['node','./extract.js','./sqlite-autoconf-<@(sqlite_version).tar.gz','<(SHARED_INTERMEDIATE_DIR)']
+        }
+      ],
+      'direct_dependent_settings': {
+        'include_dirs': [
+          '<(SHARED_INTERMEDIATE_DIR)/sqlite-autoconf-<@(sqlite_version)/',
+        ]
+      },
+    },
+    {
+      'target_name': 'sqlite3',
+      'type': 'static_library',
+      'include_dirs': [ '<(SHARED_INTERMEDIATE_DIR)/sqlite-autoconf-<@(sqlite_version)/' ],
+      'dependencies': [
+        'action_before_build'
+      ],
+      'sources': [
+        '<(SHARED_INTERMEDIATE_DIR)/sqlite-autoconf-<@(sqlite_version)/sqlite3.c'
+      ],
+      'direct_dependent_settings': {
+        'include_dirs': [ '<(SHARED_INTERMEDIATE_DIR)/sqlite-autoconf-<@(sqlite_version)/' ],
+        'defines': [
+          'SQLITE_THREADSAFE=1',
+          'HAVE_USLEEP=1',
+          'SQLITE_ENABLE_FTS3',
+          'SQLITE_ENABLE_FTS4',
+          'SQLITE_ENABLE_FTS5',
+          'SQLITE_ENABLE_RTREE',
+          'SQLITE_ENABLE_DBSTAT_VTAB=1',
+          'SQLITE_ENABLE_MATH_FUNCTIONS'
+        ],
+      },
+      'cflags_cc': [
+          '-Wno-unused-value'
+      ],
+      'defines': [
+        '_REENTRANT=1',
+        'SQLITE_THREADSAFE=1',
+        'HAVE_USLEEP=1',
+        'SQLITE_ENABLE_FTS3',
+        'SQLITE_ENABLE_FTS4',
+        'SQLITE_ENABLE_FTS5',
+        'SQLITE_ENABLE_RTREE',
+        'SQLITE_ENABLE_DBSTAT_VTAB=1',
+        'SQLITE_ENABLE_MATH_FUNCTIONS'
+      ],
+      'export_dependent_settings': [
+        'action_before_build',
+      ],
+      'conditions': [
+        ["sqlite_magic != ''", {
+            'defines': [
+              'SQLITE_FILE_HEADER="<(sqlite_magic)"'
+            ]
+        }]
+      ],
+    }
+  ]
+}
diff --git a/node_modules/sqlite3/lib/binding/napi-v6-win32-unknown-x64/node_sqlite3.node b/node_modules/sqlite3/lib/binding/napi-v6-win32-unknown-x64/node_sqlite3.node
new file mode 100644
index 0000000..5cedee3
Binary files /dev/null and b/node_modules/sqlite3/lib/binding/napi-v6-win32-unknown-x64/node_sqlite3.node differ
diff --git a/node_modules/sqlite3/lib/sqlite3-binding.js b/node_modules/sqlite3/lib/sqlite3-binding.js
new file mode 100644
index 0000000..65f0154
--- /dev/null
+++ b/node_modules/sqlite3/lib/sqlite3-binding.js
@@ -0,0 +1,5 @@
+const binary = require('@mapbox/node-pre-gyp');
+const path = require('path');
+const binding_path = binary.find(path.resolve(path.join(__dirname,'../package.json')));
+const binding = require(binding_path);
+module.exports = exports = binding;
diff --git a/node_modules/sqlite3/lib/sqlite3.d.ts b/node_modules/sqlite3/lib/sqlite3.d.ts
new file mode 100644
index 0000000..15e6623
--- /dev/null
+++ b/node_modules/sqlite3/lib/sqlite3.d.ts
@@ -0,0 +1,205 @@
+// Type definitions for sqlite3
+// Project: http://github.com/tryghost/node-sqlite3
+
+/// <reference types="node" />
+
+import events = require("events");
+
+export const OPEN_READONLY: number;
+export const OPEN_READWRITE: number;
+export const OPEN_CREATE: number;
+export const OPEN_FULLMUTEX: number;
+export const OPEN_SHAREDCACHE: number;
+export const OPEN_PRIVATECACHE: number;
+export const OPEN_URI: number;
+
+export const VERSION: string;
+export const SOURCE_ID: string;
+export const VERSION_NUMBER: number;
+
+export const OK: number;
+export const ERROR: number;
+export const INTERNAL: number;
+export const PERM: number;
+export const ABORT: number;
+export const BUSY: number;
+export const LOCKED: number;
+export const NOMEM: number;
+export const READONLY: number;
+export const INTERRUPT: number
+export const IOERR: number;
+export const CORRUPT: number
+export const NOTFOUND: number;
+export const FULL: number;
+export const CANTOPEN: number;
+export const PROTOCOL: number;
+export const EMPTY: number;
+export const SCHEMA: number;
+export const TOOBIG: number
+export const CONSTRAINT: number
+export const MISMATCH: number;
+export const MISUSE: number;
+export const NOLFS: number;
+export const AUTH: number
+export const FORMAT: number;
+export const RANGE: number
+export const NOTADB: number;
+
+export const LIMIT_LENGTH: number;
+export const LIMIT_SQL_LENGTH: number;
+export const LIMIT_COLUMN: number;
+export const LIMIT_EXPR_DEPTH: number;
+export const LIMIT_COMPOUND_SELECT: number;
+export const LIMIT_VDBE_OP: number;
+export const LIMIT_FUNCTION_ARG: number;
+export const LIMIT_ATTACHED: number;
+export const LIMIT_LIKE_PATTERN_LENGTH: number;
+export const LIMIT_VARIABLE_NUMBER: number;
+export const LIMIT_TRIGGER_DEPTH: number;
+export const LIMIT_WORKER_THREADS: number;
+
+export const cached: {
+    Database(filename: string, callback?: (this: Database, err: Error | null) => void): Database;
+    Database(filename: string, mode?: number, callback?: (this: Database, err: Error | null) => void): Database;
+};
+
+export interface RunResult extends Statement {
+    lastID: number;
+    changes: number;
+}
+
+export class Statement extends events.EventEmitter {
+    bind(callback?: (err: Error | null) => void): this;
+    bind(...params: any[]): this;
+
+    reset(callback?: (err: null) => void): this;
+
+    finalize(callback?: (err: Error) => void): Database;
+
+    run(callback?: (err: Error | null) => void): this;
+    run(params: any, callback?: (this: RunResult, err: Error | null) => void): this;
+    run(...params: any[]): this;
+
+    get<T>(callback?: (err: Error | null, row?: T) => void): this;
+    get<T>(params: any, callback?: (this: RunResult, err: Error | null, row?: T) => void): this;
+    get(...params: any[]): this;
+
+    all<T>(callback?: (err: Error | null, rows: T[]) => void): this;
+    all<T>(params: any, callback?: (this: RunResult, err: Error | null, rows: T[]) => void): this;
+    all(...params: any[]): this;
+
+    each<T>(callback?: (err: Error | null, row: T) => void, complete?: (err: Error | null, count: number) => void): this;
+    each<T>(params: any, callback?: (this: RunResult, err: Error | null, row: T) => void, complete?: (err: Error | null, count: number) => void): this;
+    each(...params: any[]): this;
+}
+
+export class Database extends events.EventEmitter {
+    constructor(filename: string, callback?: (err: Error | null) => void);
+    constructor(filename: string, mode?: number, callback?: (err: Error | null) => void);
+
+    close(callback?: (err: Error | null) => void): void;
+
+    run(sql: string, callback?: (this: RunResult, err: Error | null) => void): this;
+    run(sql: string, params: any, callback?: (this: RunResult, err: Error | null) => void): this;
+    run(sql: string, ...params: any[]): this;
+
+    get<T>(sql: string, callback?: (this: Statement, err: Error | null, row: T) => void): this;
+    get<T>(sql: string, params: any, callback?: (this: Statement, err: Error | null, row: T) => void): this;
+    get(sql: string, ...params: any[]): this;
+
+    all<T>(sql: string, callback?: (this: Statement, err: Error | null, rows: T[]) => void): this;
+    all<T>(sql: string, params: any, callback?: (this: Statement, err: Error | null, rows: T[]) => void): this;
+    all(sql: string, ...params: any[]): this;
+
+    each<T>(sql: string, callback?: (this: Statement, err: Error | null, row: T) => void, complete?: (err: Error | null, count: number) => void): this;
+    each<T>(sql: string, params: any, callback?: (this: Statement, err: Error | null, row: T) => void, complete?: (err: Error | null, count: number) => void): this;
+    each(sql: string, ...params: any[]): this;
+
+    exec(sql: string, callback?: (this: Statement, err: Error | null) => void): this;
+
+    prepare(sql: string, callback?: (this: Statement, err: Error | null) => void): Statement;
+    prepare(sql: string, params: any, callback?: (this: Statement, err: Error | null) => void): Statement;
+    prepare(sql: string, ...params: any[]): Statement;
+
+    serialize(callback?: () => void): void;
+    parallelize(callback?: () => void): void;
+
+    on(event: "trace", listener: (sql: string) => void): this;
+    on(event: "profile", listener: (sql: string, time: number) => void): this;
+    on(event: "change", listener: (type: string, database: string, table: string, rowid: number) => void): this;
+    on(event: "error", listener: (err: Error) => void): this;
+    on(event: "open" | "close", listener: () => void): this;
+    on(event: string, listener: (...args: any[]) => void): this;
+
+    configure(option: "busyTimeout", value: number): void;
+    configure(option: "limit", id: number, value: number): void;
+
+    loadExtension(filename: string, callback?: (err: Error | null) => void): this;
+
+    wait(callback?: (param: null) => void): this;
+
+    interrupt(): void;
+}
+
+export function verbose(): sqlite3;
+
+export interface sqlite3 {
+    OPEN_READONLY: number;
+    OPEN_READWRITE: number;
+    OPEN_CREATE: number;
+    OPEN_FULLMUTEX: number;
+    OPEN_SHAREDCACHE: number;
+    OPEN_PRIVATECACHE: number;
+    OPEN_URI: number;
+
+    VERSION: string;
+    SOURCE_ID: string;
+    VERSION_NUMBER: number;
+
+    OK: number;
+    ERROR: number;
+    INTERNAL: number;
+    PERM: number;
+    ABORT: number;
+    BUSY: number;
+    LOCKED: number;
+    NOMEM: number;
+    READONLY: number;
+    INTERRUPT: number
+    IOERR: number;
+    CORRUPT: number
+    NOTFOUND: number;
+    FULL: number;
+    CANTOPEN: number;
+    PROTOCOL: number;
+    EMPTY: number;
+    SCHEMA: number;
+    TOOBIG: number
+    CONSTRAINT: number
+    MISMATCH: number;
+    MISUSE: number;
+    NOLFS: number;
+    AUTH: number
+    FORMAT: number;
+    RANGE: number
+    NOTADB: number;
+
+    LIMIT_LENGTH: number;
+    LIMIT_SQL_LENGTH: number;
+    LIMIT_COLUMN: number;
+    LIMIT_EXPR_DEPTH: number;
+    LIMIT_COMPOUND_SELECT: number;
+    LIMIT_VDBE_OP: number;
+    LIMIT_FUNCTION_ARG: number;
+    LIMIT_ATTACHED: number;
+    LIMIT_LIKE_PATTERN_LENGTH: number;
+    LIMIT_VARIABLE_NUMBER: number;
+    LIMIT_TRIGGER_DEPTH: number;
+    LIMIT_WORKER_THREADS: number;
+
+    cached: typeof cached;
+    RunResult: RunResult;
+    Statement: typeof Statement;
+    Database: typeof Database;
+    verbose(): this;
+}
\ No newline at end of file
diff --git a/node_modules/sqlite3/lib/sqlite3.js b/node_modules/sqlite3/lib/sqlite3.js
new file mode 100644
index 0000000..430a2b8
--- /dev/null
+++ b/node_modules/sqlite3/lib/sqlite3.js
@@ -0,0 +1,207 @@
+const path = require('path');
+const sqlite3 = require('./sqlite3-binding.js');
+const EventEmitter = require('events').EventEmitter;
+module.exports = exports = sqlite3;
+
+function normalizeMethod (fn) {
+    return function (sql) {
+        let errBack;
+        const args = Array.prototype.slice.call(arguments, 1);
+
+        if (typeof args[args.length - 1] === 'function') {
+            const callback = args[args.length - 1];
+            errBack = function(err) {
+                if (err) {
+                    callback(err);
+                }
+            };
+        }
+        const statement = new Statement(this, sql, errBack);
+        return fn.call(this, statement, args);
+    };
+}
+
+function inherits(target, source) {
+    for (const k in source.prototype)
+        target.prototype[k] = source.prototype[k];
+}
+
+sqlite3.cached = {
+    Database: function(file, a, b) {
+        if (file === '' || file === ':memory:') {
+            // Don't cache special databases.
+            return new Database(file, a, b);
+        }
+
+        let db;
+        file = path.resolve(file);
+
+        if (!sqlite3.cached.objects[file]) {
+            db = sqlite3.cached.objects[file] = new Database(file, a, b);
+        }
+        else {
+            // Make sure the callback is called.
+            db = sqlite3.cached.objects[file];
+            const callback = (typeof a === 'number') ? b : a;
+            if (typeof callback === 'function') {
+                function cb() { callback.call(db, null); }
+                if (db.open) process.nextTick(cb);
+                else db.once('open', cb);
+            }
+        }
+
+        return db;
+    },
+    objects: {}
+};
+
+
+const Database = sqlite3.Database;
+const Statement = sqlite3.Statement;
+const Backup = sqlite3.Backup;
+
+inherits(Database, EventEmitter);
+inherits(Statement, EventEmitter);
+inherits(Backup, EventEmitter);
+
+// Database#prepare(sql, [bind1, bind2, ...], [callback])
+Database.prototype.prepare = normalizeMethod(function(statement, params) {
+    return params.length
+        ? statement.bind.apply(statement, params)
+        : statement;
+});
+
+// Database#run(sql, [bind1, bind2, ...], [callback])
+Database.prototype.run = normalizeMethod(function(statement, params) {
+    statement.run.apply(statement, params).finalize();
+    return this;
+});
+
+// Database#get(sql, [bind1, bind2, ...], [callback])
+Database.prototype.get = normalizeMethod(function(statement, params) {
+    statement.get.apply(statement, params).finalize();
+    return this;
+});
+
+// Database#all(sql, [bind1, bind2, ...], [callback])
+Database.prototype.all = normalizeMethod(function(statement, params) {
+    statement.all.apply(statement, params).finalize();
+    return this;
+});
+
+// Database#each(sql, [bind1, bind2, ...], [callback], [complete])
+Database.prototype.each = normalizeMethod(function(statement, params) {
+    statement.each.apply(statement, params).finalize();
+    return this;
+});
+
+Database.prototype.map = normalizeMethod(function(statement, params) {
+    statement.map.apply(statement, params).finalize();
+    return this;
+});
+
+// Database#backup(filename, [callback])
+// Database#backup(filename, destName, sourceName, filenameIsDest, [callback])
+Database.prototype.backup = function() {
+    let backup;
+    if (arguments.length <= 2) {
+        // By default, we write the main database out to the main database of the named file.
+        // This is the most likely use of the backup api.
+        backup = new Backup(this, arguments[0], 'main', 'main', true, arguments[1]);
+    } else {
+        // Otherwise, give the user full control over the sqlite3_backup_init arguments.
+        backup = new Backup(this, arguments[0], arguments[1], arguments[2], arguments[3], arguments[4]);
+    }
+    // Per the sqlite docs, exclude the following errors as non-fatal by default.
+    backup.retryErrors = [sqlite3.BUSY, sqlite3.LOCKED];
+    return backup;
+};
+
+Statement.prototype.map = function() {
+    const params = Array.prototype.slice.call(arguments);
+    const callback = params.pop();
+    params.push(function(err, rows) {
+        if (err) return callback(err);
+        const result = {};
+        if (rows.length) {
+            const keys = Object.keys(rows[0]);
+            const key = keys[0];
+            if (keys.length > 2) {
+                // Value is an object
+                for (let i = 0; i < rows.length; i++) {
+                    result[rows[i][key]] = rows[i];
+                }
+            } else {
+                const value = keys[1];
+                // Value is a plain value
+                for (let i = 0; i < rows.length; i++) {
+                    result[rows[i][key]] = rows[i][value];
+                }
+            }
+        }
+        callback(err, result);
+    });
+    return this.all.apply(this, params);
+};
+
+let isVerbose = false;
+
+const supportedEvents = [ 'trace', 'profile', 'change' ];
+
+Database.prototype.addListener = Database.prototype.on = function(type) {
+    const val = EventEmitter.prototype.addListener.apply(this, arguments);
+    if (supportedEvents.indexOf(type) >= 0) {
+        this.configure(type, true);
+    }
+    return val;
+};
+
+Database.prototype.removeListener = function(type) {
+    const val = EventEmitter.prototype.removeListener.apply(this, arguments);
+    if (supportedEvents.indexOf(type) >= 0 && !this._events[type]) {
+        this.configure(type, false);
+    }
+    return val;
+};
+
+Database.prototype.removeAllListeners = function(type) {
+    const val = EventEmitter.prototype.removeAllListeners.apply(this, arguments);
+    if (supportedEvents.indexOf(type) >= 0) {
+        this.configure(type, false);
+    }
+    return val;
+};
+
+// Save the stack trace over EIO callbacks.
+sqlite3.verbose = function() {
+    if (!isVerbose) {
+        const trace = require('./trace');
+        [
+            'prepare',
+            'get',
+            'run',
+            'all',
+            'each',
+            'map',
+            'close',
+            'exec'
+        ].forEach(function (name) {
+            trace.extendTrace(Database.prototype, name);
+        });
+        [
+            'bind',
+            'get',
+            'run',
+            'all',
+            'each',
+            'map',
+            'reset',
+            'finalize',
+        ].forEach(function (name) {
+            trace.extendTrace(Statement.prototype, name);
+        });
+        isVerbose = true;
+    }
+
+    return sqlite3;
+};
diff --git a/node_modules/sqlite3/lib/trace.js b/node_modules/sqlite3/lib/trace.js
new file mode 100644
index 0000000..1d84cb0
--- /dev/null
+++ b/node_modules/sqlite3/lib/trace.js
@@ -0,0 +1,38 @@
+// Inspired by https://github.com/tlrobinson/long-stack-traces
+const util = require('util');
+
+function extendTrace(object, property, pos) {
+    const old = object[property];
+    object[property] = function() {
+        const error = new Error();
+        const name = object.constructor.name + '#' + property + '(' +
+            Array.prototype.slice.call(arguments).map(function(el) {
+                return util.inspect(el, false, 0);
+            }).join(', ') + ')';
+
+        if (typeof pos === 'undefined') pos = -1;
+        if (pos < 0) pos += arguments.length;
+        const cb = arguments[pos];
+        if (typeof arguments[pos] === 'function') {
+            arguments[pos] = function replacement() {
+                const err = arguments[0];
+                if (err && err.stack && !err.__augmented) {
+                    err.stack = filter(err).join('\n');
+                    err.stack += '\n--> in ' + name;
+                    err.stack += '\n' + filter(error).slice(1).join('\n');
+                    err.__augmented = true;
+                }
+                return cb.apply(this, arguments);
+            };
+        }
+        return old.apply(this, arguments);
+    };
+}
+exports.extendTrace = extendTrace;
+
+
+function filter(error) {
+    return error.stack.split('\n').filter(function(line) {
+        return line.indexOf(__filename) < 0;
+    });
+}
diff --git a/node_modules/sqlite3/package.json b/node_modules/sqlite3/package.json
new file mode 100644
index 0000000..81ebdc7
--- /dev/null
+++ b/node_modules/sqlite3/package.json
@@ -0,0 +1,93 @@
+{
+  "name": "sqlite3",
+  "description": "Asynchronous, non-blocking SQLite3 bindings",
+  "version": "5.1.6",
+  "homepage": "https://github.com/TryGhost/node-sqlite3",
+  "author": {
+    "name": "Mapbox",
+    "url": "https://mapbox.com/"
+  },
+  "binary": {
+    "module_name": "node_sqlite3",
+    "module_path": "./lib/binding/napi-v{napi_build_version}-{platform}-{libc}-{arch}",
+    "host": "https://github.com/TryGhost/node-sqlite3/releases/download/",
+    "remote_path": "v{version}",
+    "package_name": "napi-v{napi_build_version}-{platform}-{libc}-{arch}.tar.gz",
+    "napi_versions": [
+      3,
+      6
+    ]
+  },
+  "contributors": [
+    "Konstantin Käfer <mail@kkaefer.com>",
+    "Dane Springmeyer <dane@mapbox.com>",
+    "Will White <will@mapbox.com>",
+    "Orlando Vazquez <ovazquez@gmail.com>",
+    "Artem Kustikov <kustikoff@gmail.com>",
+    "Eric Fredricksen <efredricksen@gmail.com>",
+    "John Wright <mrjjwright@gmail.com>",
+    "Ryan Dahl <ry@tinyclouds.org>",
+    "Tom MacWright <tom@mapbox.com>",
+    "Carter Thaxton <carter.thaxton@gmail.com>",
+    "Audrius Kažukauskas <audrius@neutrino.lt>",
+    "Johannes Schauer <josch@pyneo.org>",
+    "Nathan Rajlich <nathan@tootallnate.net>",
+    "AJ ONeal <coolaj86@gmail.com>",
+    "Mithgol",
+    "Ben Noordhuis <ben@strongloop.com>"
+  ],
+  "files": [
+    "binding.gyp",
+    "deps/",
+    "lib/*.js",
+    "lib/*.d.ts",
+    "src/"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/TryGhost/node-sqlite3.git"
+  },
+  "dependencies": {
+    "@mapbox/node-pre-gyp": "^1.0.0",
+    "node-addon-api": "^4.2.0",
+    "tar": "^6.1.11"
+  },
+  "devDependencies": {
+    "eslint": "6.8.0",
+    "mocha": "7.2.0",
+    "node-pre-gyp-github": "1.4.4"
+  },
+  "peerDependencies": {
+    "node-gyp": "8.x"
+  },
+  "peerDependenciesMeta": {
+    "node-gyp": {
+      "optional": true
+    }
+  },
+  "optionalDependencies": {
+    "node-gyp": "8.x"
+  },
+  "scripts": {
+    "build": "node-pre-gyp build",
+    "build:debug": "node-pre-gyp build --debug",
+    "install": "node-pre-gyp install --fallback-to-build",
+    "pretest": "node test/support/createdb.js",
+    "test": "mocha -R spec --timeout 480000",
+    "pack": "node-pre-gyp package"
+  },
+  "license": "BSD-3-Clause",
+  "keywords": [
+    "sql",
+    "sqlite",
+    "sqlite3",
+    "database"
+  ],
+  "main": "./lib/sqlite3",
+  "types": "./lib/sqlite3.d.ts",
+  "renovate": {
+    "extends": [
+      "@tryghost:base"
+    ]
+  }
+}
diff --git a/node_modules/sqlite3/src/async.h b/node_modules/sqlite3/src/async.h
new file mode 100644
index 0000000..b1a8f9d
--- /dev/null
+++ b/node_modules/sqlite3/src/async.h
@@ -0,0 +1,77 @@
+#ifndef NODE_SQLITE3_SRC_ASYNC_H
+#define NODE_SQLITE3_SRC_ASYNC_H
+
+#include <napi.h>
+#include <uv.h>
+
+#include "threading.h"
+
+// Generic uv_async handler.
+template <class Item, class Parent> class Async {
+    typedef void (*Callback)(Parent* parent, Item* item);
+
+protected:
+    uv_async_t watcher;
+    NODE_SQLITE3_MUTEX_t
+    std::vector<Item*> data;
+    Callback callback;
+public:
+    Parent* parent;
+
+public:
+    Async(Parent* parent_, Callback cb_)
+        : callback(cb_), parent(parent_) {
+        watcher.data = this;
+        NODE_SQLITE3_MUTEX_INIT
+        uv_loop_t *loop;
+        napi_get_uv_event_loop(parent_->Env(), &loop);
+        uv_async_init(loop, &watcher, reinterpret_cast<uv_async_cb>(listener));
+    }
+
+    static void listener(uv_async_t* handle) {
+        Async* async = static_cast<Async*>(handle->data);
+        std::vector<Item*> rows;
+        NODE_SQLITE3_MUTEX_LOCK(&async->mutex)
+        rows.swap(async->data);
+        NODE_SQLITE3_MUTEX_UNLOCK(&async->mutex)
+        for (unsigned int i = 0, size = rows.size(); i < size; i++) {
+            async->callback(async->parent, rows[i]);
+        }
+    }
+
+    static void close(uv_handle_t* handle) {
+        assert(handle != NULL);
+        assert(handle->data != NULL);
+        Async* async = static_cast<Async*>(handle->data);
+        delete async;
+    }
+
+    void finish() {
+        // Need to call the listener again to ensure all items have been
+        // processed. Is this a bug in uv_async? Feels like uv_close
+        // should handle that.
+        listener(&watcher);
+        uv_close((uv_handle_t*)&watcher, close);
+    }
+
+    void add(Item* item) {
+        NODE_SQLITE3_MUTEX_LOCK(&mutex);
+        data.push_back(item);
+        NODE_SQLITE3_MUTEX_UNLOCK(&mutex)
+    }
+
+    void send() {
+        uv_async_send(&watcher);
+    }
+
+    void send(Item* item) {
+        add(item);
+        send();
+    }
+
+    ~Async() {
+        NODE_SQLITE3_MUTEX_DESTROY
+    }
+};
+
+#endif
diff --git a/node_modules/sqlite3/src/backup.cc b/node_modules/sqlite3/src/backup.cc
new file mode 100644
index 0000000..9f3893b
--- /dev/null
+++ b/node_modules/sqlite3/src/backup.cc
@@ -0,0 +1,423 @@
+#include <string.h>
+#include <napi.h>
+
+#include "macros.h"
+#include "database.h"
+#include "backup.h"
+
+using namespace node_sqlite3;
+
+Napi::Object Backup::Init(Napi::Env env, Napi::Object exports) {
+    Napi::HandleScope scope(env);
+
+    // declare napi_default_method here as it is only available in Node v14.12.0+
+    napi_property_attributes napi_default_method = static_cast<napi_property_attributes>(napi_writable | napi_configurable);
+
+    Napi::Function t = DefineClass(env, "Backup", {
+        InstanceMethod("step", &Backup::Step, napi_default_method),
+        InstanceMethod("finish", &Backup::Finish, napi_default_method),
+        InstanceAccessor("idle", &Backup::IdleGetter, nullptr),
+        InstanceAccessor("completed", &Backup::CompletedGetter, nullptr),
+        InstanceAccessor("failed", &Backup::FailedGetter, nullptr),
+        InstanceAccessor("remaining", &Backup::RemainingGetter, nullptr),
+        InstanceAccessor("pageCount", &Backup::PageCountGetter, nullptr),
+        InstanceAccessor("retryErrors", &Backup::RetryErrorGetter, &Backup::RetryErrorSetter),
+    });
+
+    exports.Set("Backup", t);
+    return exports;
+}
+
+void Backup::Process() {
+    if (finished && !queue.empty()) {
+        return CleanQueue();
+    }
+
+    while (inited && !locked && !queue.empty()) {
+        std::unique_ptr<Call> call(queue.front());
+        queue.pop();
+
+        call->callback(call->baton);
+    }
+}
+
+void Backup::Schedule(Work_Callback callback, Baton* baton) {
+    if (finished) {
+        queue.push(new Call(callback, baton));
+        CleanQueue();
+    }
+    else if (!inited || locked || !queue.empty()) {
+        queue.push(new Call(callback, baton));
+    }
+    else {
+        callback(baton);
+    }
+}
+
+template <class T> void Backup::Error(T* baton) {
+    Napi::Env env = baton->backup->Env();
+    Napi::HandleScope scope(env);
+
+    Backup* backup = baton->backup;
+    // Fail hard on logic errors.
+    assert(backup->status != 0);
+    EXCEPTION(Napi::String::New(env, backup->message), backup->status, exception);
+
+    Napi::Function cb = baton->callback.Value();
+
+    if (!cb.IsEmpty() && cb.IsFunction()) {
+        Napi::Value argv[] = { exception };
+        TRY_CATCH_CALL(backup->Value(), cb, 1, argv);
+    }
+    else {
+        Napi::Value argv[] = { Napi::String::New(env, "error"), exception };
+        EMIT_EVENT(backup->Value(), 2, argv);
+    }
+}
+
+void Backup::CleanQueue() {
+    Napi::Env env = this->Env();
+    Napi::HandleScope scope(env);
+
+    if (inited && !queue.empty()) {
+        // This backup has already been initialized and is now finished.
+        // Fire error for all remaining items in the queue.
+        EXCEPTION(Napi::String::New(env, "Backup is already finished"), SQLITE_MISUSE, exception);
+        Napi::Value argv[] = { exception };
+        bool called = false;
+
+        // Clear out the queue so that this object can get GC'ed.
+        while (!queue.empty()) {
+            std::unique_ptr<Call> call(queue.front());
+            queue.pop();
+
+            std::unique_ptr<Baton> baton(call->baton);
+            Napi::Function cb = baton->callback.Value();
+
+            if (inited && !cb.IsEmpty() &&
+                cb.IsFunction()) {
+                TRY_CATCH_CALL(Value(), cb, 1, argv);
+                called = true;
+            }
+        }
+
+        // When we couldn't call a callback function, emit an error on the
+        // Backup object.
+        if (!called) {
+            Napi::Value info[] = { Napi::String::New(env, "error"), exception };
+            EMIT_EVENT(Value(), 2, info);
+        }
+    }
+    else while (!queue.empty()) {
+        // Just delete all items in the queue; we already fired an event when
+        // initializing the backup failed.
+        std::unique_ptr<Call> call(queue.front());
+        queue.pop();
+
+        // We don't call the actual callback, so we have to make sure that
+        // the baton gets destroyed.
+        delete call->baton;
+    }
+}
+
+Backup::Backup(const Napi::CallbackInfo& info) : Napi::ObjectWrap<Backup>(info) {
+    Napi::Env env = info.Env();
+    if (!info.IsConstructCall()) {
+        Napi::TypeError::New(env, "Use the new operator to create new Backup objects").ThrowAsJavaScriptException();
+        return;
+    }
+
+    int length = info.Length();
+
+    if (length <= 0 || !Database::HasInstance(info[0])) {
+        Napi::TypeError::New(env, "Database object expected").ThrowAsJavaScriptException();
+        return;
+    }
+    else if (length <= 1 || !info[1].IsString()) {
+        Napi::TypeError::New(env, "Filename expected").ThrowAsJavaScriptException();
+        return;
+    }
+    else if (length <= 2 || !info[2].IsString()) {
+        Napi::TypeError::New(env, "Source database name expected").ThrowAsJavaScriptException();
+        return;
+    }
+    else if (length <= 3 || !info[3].IsString()) {
+        Napi::TypeError::New(env, "Destination database name expected").ThrowAsJavaScriptException();
+        return;
+    }
+    else if (length <= 4 || !info[4].IsBoolean()) {
+        Napi::TypeError::New(env, "Direction flag expected").ThrowAsJavaScriptException();
+        return;
+    }
+    else if (length > 5 && !info[5].IsUndefined() && !info[5].IsFunction()) {
+        Napi::TypeError::New(env, "Callback expected").ThrowAsJavaScriptException();
+        return;
+    }
+
+    Database* db = Napi::ObjectWrap<Database>::Unwrap(info[0].As<Napi::Object>());
+    Napi::String filename = info[1].As<Napi::String>();
+    Napi::String sourceName = info[2].As<Napi::String>();
+    Napi::String destName = info[3].As<Napi::String>();
+    Napi::Boolean filenameIsDest = info[4].As<Napi::Boolean>();
+
+    info.This().As<Napi::Object>().DefineProperty(Napi::PropertyDescriptor::Value("filename", filename));
+    info.This().As<Napi::Object>().DefineProperty(Napi::PropertyDescriptor::Value("sourceName", sourceName));
+    info.This().As<Napi::Object>().DefineProperty(Napi::PropertyDescriptor::Value("destName", destName));
+    info.This().As<Napi::Object>().DefineProperty(Napi::PropertyDescriptor::Value("filenameIsDest", filenameIsDest));
+
+    init(db);
+
+    InitializeBaton* baton = new InitializeBaton(db, info[5].As<Napi::Function>(), this);
+    baton->filename = filename.Utf8Value();
+    baton->sourceName = sourceName.Utf8Value();
+    baton->destName = destName.Utf8Value();
+    baton->filenameIsDest = filenameIsDest.Value();
+    db->Schedule(Work_BeginInitialize, baton);
+}
+
+void Backup::Work_BeginInitialize(Database::Baton* baton) {
+    assert(baton->db->open);
+    baton->db->pending++;
+    Napi::Env env = baton->db->Env();
+    int status = napi_create_async_work(
+        env, NULL, Napi::String::New(env, "sqlite3.Backup.Initialize"),
+        Work_Initialize, Work_AfterInitialize, baton, &baton->request
+    );
+    assert(status == 0);
+    napi_queue_async_work(env, baton->request);
+}
+
+void Backup::Work_Initialize(napi_env e, void* data) {
+    BACKUP_INIT(InitializeBaton);
+
+    // In case stepping fails, we use a mutex to make sure we get the associated
+    // error message.
+    sqlite3_mutex* mtx = sqlite3_db_mutex(baton->db->_handle);
+    sqlite3_mutex_enter(mtx);
+
+    backup->status = sqlite3_open(baton->filename.c_str(), &backup->_otherDb);
+
+    if (backup->status == SQLITE_OK) {
+        backup->_handle = sqlite3_backup_init(
+            baton->filenameIsDest ? backup->_otherDb : backup->db->_handle,
+            baton->destName.c_str(),
+            baton->filenameIsDest ? backup->db->_handle : backup->_otherDb,
+            baton->sourceName.c_str());
+    }
+    backup->_destDb = baton->filenameIsDest ? backup->_otherDb : backup->db->_handle;
+
+    if (backup->status != SQLITE_OK) {
+        backup->message = std::string(sqlite3_errmsg(backup->_destDb));
+        sqlite3_close(backup->_otherDb);
+        backup->_otherDb = NULL;
+        backup->_destDb = NULL;
+    }
+
+    sqlite3_mutex_leave(mtx);
+}
+
+void Backup::Work_AfterInitialize(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<InitializeBaton> baton(static_cast<InitializeBaton*>(data));
+    Backup* backup = baton->backup;
+
+    Napi::Env env = backup->Env();
+    Napi::HandleScope scope(env);
+
+    if (backup->status != SQLITE_OK) {
+        Error(baton.get());
+        backup->FinishAll();
+    }
+    else {
+        backup->inited = true;
+        Napi::Function cb = baton->callback.Value();
+        if (!cb.IsEmpty() && cb.IsFunction()) {
+            Napi::Value argv[] = { env.Null() };
+            TRY_CATCH_CALL(backup->Value(), cb, 1, argv);
+        }
+    }
+    BACKUP_END();
+}
+
+Napi::Value Backup::Step(const Napi::CallbackInfo& info) {
+    Backup* backup = this;
+    Napi::Env env = backup->Env();
+
+    REQUIRE_ARGUMENT_INTEGER(0, pages);
+    OPTIONAL_ARGUMENT_FUNCTION(1, callback);
+
+    StepBaton* baton = new StepBaton(backup, callback, pages);
+    backup->GetRetryErrors(baton->retryErrorsSet);
+    backup->Schedule(Work_BeginStep, baton);
+    return info.This();
+}
+
+void Backup::Work_BeginStep(Baton* baton) {
+    BACKUP_BEGIN(Step);
+}
+
+void Backup::Work_Step(napi_env e, void* data) {
+    BACKUP_INIT(StepBaton);
+    if (backup->_handle) {
+        backup->status = sqlite3_backup_step(backup->_handle, baton->pages);
+        backup->remaining = sqlite3_backup_remaining(backup->_handle);
+        backup->pageCount = sqlite3_backup_pagecount(backup->_handle);
+    }
+    if (backup->status != SQLITE_OK) {
+        // Text of message is a little awkward to get, since the error is not associated
+        // with a db connection.
+#if SQLITE_VERSION_NUMBER >= 3007015
+        // sqlite3_errstr is a relatively new method
+        backup->message = std::string(sqlite3_errstr(backup->status));
+#else
+        backup->message = "Sqlite error";
+#endif
+        if (baton->retryErrorsSet.size() > 0) {
+            if (baton->retryErrorsSet.find(backup->status) == baton->retryErrorsSet.end()) {
+                backup->FinishSqlite();
+            }
+        }
+    }
+}
+
+void Backup::Work_AfterStep(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<StepBaton> baton(static_cast<StepBaton*>(data));
+    Backup* backup = baton->backup;
+
+    Napi::Env env = backup->Env();
+    Napi::HandleScope scope(env);
+
+    if (backup->status == SQLITE_DONE) {
+        backup->completed = true;
+    } else if (!backup->_handle) {
+        backup->failed = true;
+    }
+
+    if (backup->status != SQLITE_OK && backup->status != SQLITE_DONE) {
+        Error(baton.get());
+    }
+    else {
+        // Fire callbacks.
+        Napi::Function cb = baton->callback.Value();
+        if (!cb.IsEmpty() && cb.IsFunction()) {
+            Napi::Value argv[] = { env.Null(), Napi::Boolean::New(env, backup->status == SQLITE_DONE) };
+            TRY_CATCH_CALL(backup->Value(), cb, 2, argv);
+        }
+    }
+
+    BACKUP_END();
+}
+
+Napi::Value Backup::Finish(const Napi::CallbackInfo& info) {
+    Backup* backup = this;
+    Napi::Env env = backup->Env();
+
+    OPTIONAL_ARGUMENT_FUNCTION(0, callback);
+
+    Baton* baton = new Baton(backup, callback);
+    backup->Schedule(Work_BeginFinish, baton);
+    return info.This();
+}
+
+void Backup::Work_BeginFinish(Baton* baton) {
+    BACKUP_BEGIN(Finish);
+}
+
+void Backup::Work_Finish(napi_env e, void* data) {
+    BACKUP_INIT(Baton);
+    backup->FinishSqlite();
+}
+
+void Backup::Work_AfterFinish(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<Baton> baton(static_cast<Baton*>(data));
+    Backup* backup = baton->backup;
+
+    Napi::Env env = backup->Env();
+    Napi::HandleScope scope(env);
+
+    backup->FinishAll();
+
+    // Fire callback in case there was one.
+    Napi::Function cb = baton->callback.Value();
+    if (!cb.IsEmpty() && cb.IsFunction()) {
+        TRY_CATCH_CALL(backup->Value(), cb, 0, NULL);
+    }
+
+    BACKUP_END();
+}
+
+void Backup::FinishAll() {
+    assert(!finished);
+    if (!completed && !failed) {
+        failed = true;
+    }
+    finished = true;
+    CleanQueue();
+    FinishSqlite();
+    db->Unref();
+}
+
+void Backup::FinishSqlite() {
+    if (_handle) {
+        sqlite3_backup_finish(_handle);
+        _handle = NULL;
+    }
+    if (_otherDb) {
+        sqlite3_close(_otherDb);
+        _otherDb = NULL;
+    }
+    _destDb = NULL;
+}
+
+Napi::Value Backup::IdleGetter(const Napi::CallbackInfo& info) {
+    Backup* backup = this;
+    bool idle = backup->inited && !backup->locked && backup->queue.empty();
+    return Napi::Boolean::New(this->Env(), idle);
+}
+
+Napi::Value Backup::CompletedGetter(const Napi::CallbackInfo& info) {
+    Backup* backup = this;
+    return Napi::Boolean::New(this->Env(), backup->completed);
+}
+
+Napi::Value Backup::FailedGetter(const Napi::CallbackInfo& info) {
+    Backup* backup = this;
+    return Napi::Boolean::New(this->Env(), backup->failed);
+}
+
+Napi::Value Backup::RemainingGetter(const Napi::CallbackInfo& info) {
+    Backup* backup = this;
+    return Napi::Number::New(this->Env(), backup->remaining);
+}
+
+Napi::Value Backup::PageCountGetter(const Napi::CallbackInfo& info) {
+    Backup* backup = this;
+    return Napi::Number::New(this->Env(), backup->pageCount);
+}
+
+Napi::Value Backup::RetryErrorGetter(const Napi::CallbackInfo& info) {
+    Backup* backup = this;
+    return backup->retryErrors.Value();
+}
+
+void Backup::RetryErrorSetter(const Napi::CallbackInfo& info, const Napi::Value& value) {
+    Backup* backup = this;
+    Napi::Env env = backup->Env();
+    if (!value.IsArray()) {
+        Napi::Error::New(env, "retryErrors must be an array").ThrowAsJavaScriptException();
+        return;
+    }
+    Napi::Array array = value.As<Napi::Array>();
+    backup->retryErrors.Reset(array, 1);
+}
+
+void Backup::GetRetryErrors(std::set<int>& retryErrorsSet) {
+    retryErrorsSet.clear();
+    Napi::Array array = retryErrors.Value();
+    int length = array.Length();
+    for (int i = 0; i < length; i++) {
+        Napi::Value code = (array).Get(i);
+        if (code.IsNumber()) {
+            retryErrorsSet.insert(code.As<Napi::Number>().Int32Value());
+        }
+    }
+}
diff --git a/node_modules/sqlite3/src/backup.h b/node_modules/sqlite3/src/backup.h
new file mode 100644
index 0000000..c15b77b
--- /dev/null
+++ b/node_modules/sqlite3/src/backup.h
@@ -0,0 +1,221 @@
+#ifndef NODE_SQLITE3_SRC_BACKUP_H
+#define NODE_SQLITE3_SRC_BACKUP_H
+
+#include "database.h"
+
+#include <string>
+#include <queue>
+#include <set>
+
+#include <sqlite3.h>
+#include <napi.h>
+
+using namespace Napi;
+
+namespace node_sqlite3 {
+
+/**
+ *
+ * A class for managing an sqlite3_backup object.  For consistency
+ * with other node-sqlite3 classes, it maintains an internal queue
+ * of calls.
+ *
+ * Intended usage from node:
+ *
+ *   var db = new sqlite3.Database('live.db');
+ *   var backup = db.backup('backup.db');
+ *   ...
+ *   // in event loop, move backup forward when we have time.
+ *   if (backup.idle) { backup.step(NPAGES); }
+ *   if (backup.completed) { ... success ... }
+ *   if (backup.failed)    { ... sadness ... }
+ *   // do other work in event loop - fine to modify live.db
+ *   ...
+ *
+ * Here is how sqlite's backup api is exposed:
+ *
+ *   - `sqlite3_backup_init`: This is implemented as
+ *     `db.backup(filename, [callback])` or
+ *     `db.backup(filename, destDbName, sourceDbName, filenameIsDest, [callback])`.
+ *   - `sqlite3_backup_step`: `backup.step(pages, [callback])`.
+ *   - `sqlite3_backup_finish`: `backup.finish([callback])`.
+ *   - `sqlite3_backup_remaining`: `backup.remaining`.
+ *   - `sqlite3_backup_pagecount`: `backup.pageCount`.
+ *
+ * There are the following read-only properties:
+ *
+ *   - `backup.completed` is set to `true` when the backup
+ *     succeeeds.
+ *   - `backup.failed` is set to `true` when the backup
+ *     has a fatal error.
+ *   - `backup.idle` is set to `true` when no operation
+ *     is currently in progress or queued for the backup.
+ *   - `backup.remaining` is an integer with the remaining
+ *     number of pages after the last call to `backup.step`
+ *     (-1 if `step` not yet called).
+ *   - `backup.pageCount` is an integer with the total number
+ *     of pages measured during the last call to `backup.step`
+ *     (-1 if `step` not yet called).
+ *
+ * There is the following writable property:
+ *
+ *   - `backup.retryErrors`: an array of sqlite3 error codes
+ *     that are treated as non-fatal - meaning, if they occur,
+ *     backup.failed is not set, and the backup may continue.
+ *     By default, this is `[sqlite3.BUSY, sqlite3.LOCKED]`.
+ *
+ * The `db.backup(filename, [callback])` shorthand is sufficient
+ * for making a backup of a database opened by node-sqlite3.  If
+ * using attached or temporary databases, or moving data in the
+ * opposite direction, the more complete (but daunting)
+ * `db.backup(filename, destDbName, sourceDbName, filenameIsDest, [callback])`
+ * signature is provided.
+ *
+ * A backup will finish automatically when it succeeds or a fatal
+ * error occurs, meaning it is not necessary to call `db.finish()`.
+ * By default, SQLITE_LOCKED and SQLITE_BUSY errors are not
+ * treated as failures, and the backup will continue if they
+ * occur.  The set of errors that are tolerated can be controlled
+ * by setting `backup.retryErrors`. To disable automatic
+ * finishing and stick strictly to sqlite's raw api, set
+ * `backup.retryErrors` to `[]`.  In that case, it is necessary
+ * to call `backup.finish()`.
+ *
+ * In the same way as node-sqlite3 databases and statements,
+ * backup methods can be called safely without callbacks, due
+ * to an internal call queue.  So for example this naive code
+ * will correctly back up a db, if there are no errors:
+ *
+ *   var backup = db.backup('backup.db');
+ *   backup.step(-1);
+ *   backup.finish();
+ *
+ */
+class Backup : public Napi::ObjectWrap<Backup> {
+public:
+    static Napi::Object Init(Napi::Env env, Napi::Object exports);
+
+    struct Baton {
+        napi_async_work request = NULL;
+        Backup* backup;
+        Napi::FunctionReference callback;
+
+        Baton(Backup* backup_, Napi::Function cb_) : backup(backup_) {
+            backup->Ref();
+            callback.Reset(cb_, 1);
+        }
+        virtual ~Baton() {
+            if (request) napi_delete_async_work(backup->Env(), request);
+            backup->Unref();
+            callback.Reset();
+        }
+    };
+
+    struct InitializeBaton : Database::Baton {
+        Backup* backup;
+        std::string filename;
+        std::string sourceName;
+        std::string destName;
+        bool filenameIsDest;
+        InitializeBaton(Database* db_, Napi::Function cb_, Backup* backup_) :
+            Baton(db_, cb_), backup(backup_), filenameIsDest(true) {
+            backup->Ref();
+        }
+        virtual ~InitializeBaton() {
+            backup->Unref();
+            if (!db->IsOpen() && db->IsLocked()) {
+                // The database handle was closed before the backup could be opened.
+                backup->FinishAll();
+            }
+        }
+    };
+
+    struct StepBaton : Baton {
+        int pages;
+        std::set<int> retryErrorsSet;
+        StepBaton(Backup* backup_, Napi::Function cb_, int pages_) :
+            Baton(backup_, cb_), pages(pages_) {}
+    };
+
+    typedef void (*Work_Callback)(Baton* baton);
+
+    struct Call {
+        Call(Work_Callback cb_, Baton* baton_) : callback(cb_), baton(baton_) {};
+        Work_Callback callback;
+        Baton* baton;
+    };
+
+    void init(Database* db_) {
+        db = db_;
+        _handle = NULL;
+        _otherDb = NULL;
+        _destDb = NULL;
+        inited = false;
+        locked = true;
+        completed = false;
+        failed = false;
+        remaining = -1;
+        pageCount = -1;
+        finished = false;
+        db->Ref();
+    }
+
+    Backup(const Napi::CallbackInfo& info);
+
+    ~Backup() {
+        if (!finished) {
+            FinishAll();
+        }
+        retryErrors.Reset();
+    }
+
+    WORK_DEFINITION(Step);
+    WORK_DEFINITION(Finish);
+    Napi::Value IdleGetter(const Napi::CallbackInfo& info);
+    Napi::Value CompletedGetter(const Napi::CallbackInfo& info);
+    Napi::Value FailedGetter(const Napi::CallbackInfo& info);
+    Napi::Value PageCountGetter(const Napi::CallbackInfo& info);
+    Napi::Value RemainingGetter(const Napi::CallbackInfo& info);
+    Napi::Value FatalErrorGetter(const Napi::CallbackInfo& info);
+    Napi::Value RetryErrorGetter(const Napi::CallbackInfo& info);
+
+    void FatalErrorSetter(const Napi::CallbackInfo& info, const Napi::Value& value);
+    void RetryErrorSetter(const Napi::CallbackInfo& info, const Napi::Value& value);
+
+protected:
+    static void Work_BeginInitialize(Database::Baton* baton);
+    static void Work_Initialize(napi_env env, void* data);
+    static void Work_AfterInitialize(napi_env env, napi_status status, void* data);
+
+    void Schedule(Work_Callback callback, Baton* baton);
+    void Process();
+    void CleanQueue();
+    template <class T> static void Error(T* baton);
+
+    void FinishAll();
+    void FinishSqlite();
+    void GetRetryErrors(std::set<int>& retryErrorsSet);
+
+    Database* db;
+
+    sqlite3_backup* _handle;
+    sqlite3* _otherDb;
+    sqlite3* _destDb;
+    int status;
+    std::string message;
+
+    bool inited;
+    bool locked;
+    bool completed;
+    bool failed;
+    int remaining;
+    int pageCount;
+    bool finished;
+    std::queue<Call*> queue;
+
+    Napi::Reference<Array> retryErrors;
+};
+
+}
+
+#endif
diff --git a/node_modules/sqlite3/src/database.cc b/node_modules/sqlite3/src/database.cc
new file mode 100644
index 0000000..15709ce
--- /dev/null
+++ b/node_modules/sqlite3/src/database.cc
@@ -0,0 +1,775 @@
+#include <string.h>
+#include <napi.h>
+
+#include "macros.h"
+#include "database.h"
+#include "statement.h"
+
+using namespace node_sqlite3;
+
+#if NAPI_VERSION < 6
+Napi::FunctionReference Database::constructor;
+#endif
+
+Napi::Object Database::Init(Napi::Env env, Napi::Object exports) {
+    Napi::HandleScope scope(env);
+    // declare napi_default_method here as it is only available in Node v14.12.0+
+    napi_property_attributes napi_default_method = static_cast<napi_property_attributes>(napi_writable | napi_configurable); 
+
+    Napi::Function t = DefineClass(env, "Database", {
+        InstanceMethod("close", &Database::Close, napi_default_method),
+        InstanceMethod("exec", &Database::Exec, napi_default_method),
+        InstanceMethod("wait", &Database::Wait, napi_default_method),
+        InstanceMethod("loadExtension", &Database::LoadExtension, napi_default_method),
+        InstanceMethod("serialize", &Database::Serialize, napi_default_method),
+        InstanceMethod("parallelize", &Database::Parallelize, napi_default_method),
+        InstanceMethod("configure", &Database::Configure, napi_default_method),
+        InstanceMethod("interrupt", &Database::Interrupt, napi_default_method),
+        InstanceAccessor("open", &Database::OpenGetter, nullptr)
+    });
+
+#if NAPI_VERSION < 6
+    constructor = Napi::Persistent(t);
+    constructor.SuppressDestruct();
+#else
+    Napi::FunctionReference* constructor = new Napi::FunctionReference();
+    *constructor = Napi::Persistent(t);
+    env.SetInstanceData<Napi::FunctionReference>(constructor);
+#endif
+
+    exports.Set("Database", t);
+    return exports;
+}
+
+void Database::Process() {
+    Napi::Env env = this->Env();
+    Napi::HandleScope scope(env);
+
+    if (!open && locked && !queue.empty()) {
+        EXCEPTION(Napi::String::New(env, "Database handle is closed"), SQLITE_MISUSE, exception);
+        Napi::Value argv[] = { exception };
+        bool called = false;
+
+        // Call all callbacks with the error object.
+        while (!queue.empty()) {
+            std::unique_ptr<Call> call(queue.front());
+            queue.pop();
+            std::unique_ptr<Baton> baton(call->baton);
+            Napi::Function cb = baton->callback.Value();
+            if (IS_FUNCTION(cb)) {
+                TRY_CATCH_CALL(this->Value(), cb, 1, argv);
+                called = true;
+            }
+        }
+
+        // When we couldn't call a callback function, emit an error on the
+        // Database object.
+        if (!called) {
+            Napi::Value info[] = { Napi::String::New(env, "error"), exception };
+            EMIT_EVENT(Value(), 2, info);
+        }
+        return;
+    }
+
+    while (open && (!locked || pending == 0) && !queue.empty()) {
+        Call *c = queue.front();
+
+        if (c->exclusive && pending > 0) {
+            break;
+        }
+
+        queue.pop();
+        std::unique_ptr<Call> call(c);
+        locked = call->exclusive;
+        call->callback(call->baton);
+
+        if (locked) break;
+    }
+}
+
+void Database::Schedule(Work_Callback callback, Baton* baton, bool exclusive) {
+    Napi::Env env = this->Env();
+    Napi::HandleScope scope(env);
+
+    if (!open && locked) {
+        EXCEPTION(Napi::String::New(env, "Database is closed"), SQLITE_MISUSE, exception);
+        Napi::Function cb = baton->callback.Value();
+        // We don't call the actual callback, so we have to make sure that
+        // the baton gets destroyed.
+        delete baton;
+        if (IS_FUNCTION(cb)) {
+            Napi::Value argv[] = { exception };
+            TRY_CATCH_CALL(Value(), cb, 1, argv);
+        }
+        else {
+            Napi::Value argv[] = { Napi::String::New(env, "error"), exception };
+            EMIT_EVENT(Value(), 2, argv);
+        }
+        return;
+    }
+
+    if (!open || ((locked || exclusive || serialize) && pending > 0)) {
+        queue.push(new Call(callback, baton, exclusive || serialize));
+    }
+    else {
+        locked = exclusive;
+        callback(baton);
+    }
+}
+
+Database::Database(const Napi::CallbackInfo& info) : Napi::ObjectWrap<Database>(info) {
+    init();
+    Napi::Env env = info.Env();
+
+    if (info.Length() <= 0 || !info[0].IsString()) {
+        Napi::TypeError::New(env, "String expected").ThrowAsJavaScriptException();
+        return;
+    }
+    std::string filename = info[0].As<Napi::String>();
+
+    unsigned int pos = 1;
+
+    int mode;
+    if (info.Length() >= pos && info[pos].IsNumber() && OtherIsInt(info[pos].As<Napi::Number>())) {
+        mode = info[pos++].As<Napi::Number>().Int32Value();
+    }
+    else {
+        mode = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_FULLMUTEX;
+    }
+
+    Napi::Function callback;
+    if (info.Length() >= pos && info[pos].IsFunction()) {
+        callback = info[pos++].As<Napi::Function>();
+    }
+
+    info.This().As<Napi::Object>().DefineProperty(Napi::PropertyDescriptor::Value("filename", info[0].As<Napi::String>(), napi_default));
+    info.This().As<Napi::Object>().DefineProperty(Napi::PropertyDescriptor::Value("mode", Napi::Number::New(env, mode), napi_default));
+
+    // Start opening the database.
+    OpenBaton* baton = new OpenBaton(this, callback, filename.c_str(), mode);
+    Work_BeginOpen(baton);
+}
+
+void Database::Work_BeginOpen(Baton* baton) {
+    Napi::Env env = baton->db->Env();
+    int status = napi_create_async_work(
+        env, NULL, Napi::String::New(env, "sqlite3.Database.Open"),
+        Work_Open, Work_AfterOpen, baton, &baton->request
+    );
+    assert(status == 0);
+    napi_queue_async_work(env, baton->request);
+}
+
+void Database::Work_Open(napi_env e, void* data) {
+    OpenBaton* baton = static_cast<OpenBaton*>(data);
+    Database* db = baton->db;
+
+    baton->status = sqlite3_open_v2(
+        baton->filename.c_str(),
+        &db->_handle,
+        baton->mode,
+        NULL
+    );
+
+    if (baton->status != SQLITE_OK) {
+        baton->message = std::string(sqlite3_errmsg(db->_handle));
+        sqlite3_close(db->_handle);
+        db->_handle = NULL;
+    }
+    else {
+        // Set default database handle values.
+        sqlite3_busy_timeout(db->_handle, 1000);
+    }
+}
+
+void Database::Work_AfterOpen(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<OpenBaton> baton(static_cast<OpenBaton*>(data));
+
+    Database* db = baton->db;
+
+    Napi::Env env = db->Env();
+    Napi::HandleScope scope(env);
+
+    Napi::Value argv[1];
+    if (baton->status != SQLITE_OK) {
+        EXCEPTION(Napi::String::New(env, baton->message.c_str()), baton->status, exception);
+        argv[0] = exception;
+    }
+    else {
+        db->open = true;
+        argv[0] = env.Null();
+    }
+
+    Napi::Function cb = baton->callback.Value();
+
+    if (IS_FUNCTION(cb)) {
+        TRY_CATCH_CALL(db->Value(), cb, 1, argv);
+    }
+    else if (!db->open) {
+        Napi::Value info[] = { Napi::String::New(env, "error"), argv[0] };
+        EMIT_EVENT(db->Value(), 2, info);
+    }
+
+    if (db->open) {
+        Napi::Value info[] = { Napi::String::New(env, "open") };
+        EMIT_EVENT(db->Value(), 1, info);
+        db->Process();
+    }
+}
+
+Napi::Value Database::OpenGetter(const Napi::CallbackInfo& info) {
+    Napi::Env env = this->Env();
+    Database* db = this;
+    return Napi::Boolean::New(env, db->open);
+}
+
+Napi::Value Database::Close(const Napi::CallbackInfo& info) {
+    Napi::Env env = info.Env();
+    Database* db = this;
+    OPTIONAL_ARGUMENT_FUNCTION(0, callback);
+
+    Baton* baton = new Baton(db, callback);
+    db->Schedule(Work_BeginClose, baton, true);
+
+    return info.This();
+}
+
+void Database::Work_BeginClose(Baton* baton) {
+    assert(baton->db->locked);
+    assert(baton->db->open);
+    assert(baton->db->_handle);
+    assert(baton->db->pending == 0);
+
+    baton->db->pending++;
+    baton->db->RemoveCallbacks();
+    baton->db->closing = true;
+
+    Napi::Env env = baton->db->Env();
+
+    int status = napi_create_async_work(
+        env, NULL, Napi::String::New(env, "sqlite3.Database.Close"),
+        Work_Close, Work_AfterClose, baton, &baton->request
+    );
+    assert(status == 0);
+    napi_queue_async_work(env, baton->request);
+}
+
+void Database::Work_Close(napi_env e, void* data) {
+    Baton* baton = static_cast<Baton*>(data);
+    Database* db = baton->db;
+
+    baton->status = sqlite3_close(db->_handle);
+
+    if (baton->status != SQLITE_OK) {
+        baton->message = std::string(sqlite3_errmsg(db->_handle));
+    }
+    else {
+        db->_handle = NULL;
+    }
+}
+
+void Database::Work_AfterClose(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<Baton> baton(static_cast<Baton*>(data));
+
+    Database* db = baton->db;
+
+    Napi::Env env = db->Env();
+    Napi::HandleScope scope(env);
+
+    db->pending--;
+    db->closing = false;
+
+    Napi::Value argv[1];
+    if (baton->status != SQLITE_OK) {
+        EXCEPTION(Napi::String::New(env, baton->message.c_str()), baton->status, exception);
+        argv[0] = exception;
+    }
+    else {
+        db->open = false;
+        // Leave db->locked to indicate that this db object has reached
+        // the end of its life.
+        argv[0] = env.Null();
+    }
+
+    Napi::Function cb = baton->callback.Value();
+
+    // Fire callbacks.
+    if (IS_FUNCTION(cb)) {
+        TRY_CATCH_CALL(db->Value(), cb, 1, argv);
+    }
+    else if (db->open) {
+        Napi::Value info[] = { Napi::String::New(env, "error"), argv[0] };
+        EMIT_EVENT(db->Value(), 2, info);
+    }
+
+    if (!db->open) {
+        Napi::Value info[] = { Napi::String::New(env, "close"), argv[0] };
+        EMIT_EVENT(db->Value(), 1, info);
+        db->Process();
+    }
+}
+
+Napi::Value Database::Serialize(const Napi::CallbackInfo& info) {
+    Napi::Env env = this->Env();
+    Database* db = this;
+    OPTIONAL_ARGUMENT_FUNCTION(0, callback);
+
+    bool before = db->serialize;
+    db->serialize = true;
+
+    if (!callback.IsEmpty() && callback.IsFunction()) {
+        TRY_CATCH_CALL(info.This(), callback, 0, NULL, info.This());
+        db->serialize = before;
+    }
+
+    db->Process();
+
+    return info.This();
+}
+
+Napi::Value Database::Parallelize(const Napi::CallbackInfo& info) {
+    Napi::Env env = this->Env();
+    Database* db = this;
+    OPTIONAL_ARGUMENT_FUNCTION(0, callback);
+
+    bool before = db->serialize;
+    db->serialize = false;
+
+    if (!callback.IsEmpty() && callback.IsFunction()) {
+        TRY_CATCH_CALL(info.This(), callback, 0, NULL, info.This());
+        db->serialize = before;
+    }
+
+    db->Process();
+
+    return info.This();
+}
+
+Napi::Value Database::Configure(const Napi::CallbackInfo& info) {
+    Napi::Env env = this->Env();
+    Database* db = this;
+
+    REQUIRE_ARGUMENTS(2);
+
+    if (info[0].StrictEquals( Napi::String::New(env, "trace"))) {
+        Napi::Function handle;
+        Baton* baton = new Baton(db, handle);
+        db->Schedule(RegisterTraceCallback, baton);
+    }
+    else if (info[0].StrictEquals( Napi::String::New(env, "profile"))) {
+        Napi::Function handle;
+        Baton* baton = new Baton(db, handle);
+        db->Schedule(RegisterProfileCallback, baton);
+    }
+    else if (info[0].StrictEquals( Napi::String::New(env, "busyTimeout"))) {
+        if (!info[1].IsNumber()) {
+            Napi::TypeError::New(env, "Value must be an integer").ThrowAsJavaScriptException();
+            return env.Null();
+        }
+        Napi::Function handle;
+        Baton* baton = new Baton(db, handle);
+        baton->status = info[1].As<Napi::Number>().Int32Value();
+        db->Schedule(SetBusyTimeout, baton);
+    }
+    else if (info[0].StrictEquals( Napi::String::New(env, "limit"))) {
+        REQUIRE_ARGUMENTS(3);
+        if (!info[1].IsNumber()) {
+            Napi::TypeError::New(env, "limit id must be an integer").ThrowAsJavaScriptException();
+            return env.Null();
+        }
+        if (!info[2].IsNumber()) {
+            Napi::TypeError::New(env, "limit value must be an integer").ThrowAsJavaScriptException();
+            return env.Null();
+        }
+        Napi::Function handle;
+        int id = info[1].As<Napi::Number>().Int32Value();
+        int value = info[2].As<Napi::Number>().Int32Value();
+        Baton* baton = new LimitBaton(db, handle, id, value);
+        db->Schedule(SetLimit, baton);
+    }
+    else if (info[0].StrictEquals(Napi::String::New(env, "change"))) {
+        Napi::Function handle;
+        Baton* baton = new Baton(db, handle);
+        db->Schedule(RegisterUpdateCallback, baton);
+    }
+    else {
+        Napi::TypeError::New(env, (StringConcat(
+#if V8_MAJOR_VERSION > 6
+            info.GetIsolate(),
+#endif
+            info[0].As<Napi::String>(),
+            Napi::String::New(env, " is not a valid configuration option")
+        )).Utf8Value().c_str()).ThrowAsJavaScriptException();
+        return env.Null();
+    }
+
+    db->Process();
+
+    return info.This();
+}
+
+Napi::Value Database::Interrupt(const Napi::CallbackInfo& info) {
+    Napi::Env env = this->Env();
+    Database* db = this;
+
+    if (!db->open) {
+        Napi::Error::New(env, "Database is not open").ThrowAsJavaScriptException();
+        return env.Null();
+    }
+
+    if (db->closing) {
+        Napi::Error::New(env, "Database is closing").ThrowAsJavaScriptException();
+        return env.Null();
+    }
+
+    sqlite3_interrupt(db->_handle);
+    return info.This();
+}
+
+void Database::SetBusyTimeout(Baton* b) {
+    std::unique_ptr<Baton> baton(b);
+
+    assert(baton->db->open);
+    assert(baton->db->_handle);
+
+    // Abuse the status field for passing the timeout.
+    sqlite3_busy_timeout(baton->db->_handle, baton->status);
+}
+
+void Database::SetLimit(Baton* b) {
+    std::unique_ptr<LimitBaton> baton(static_cast<LimitBaton*>(b));
+
+    assert(baton->db->open);
+    assert(baton->db->_handle);
+
+    sqlite3_limit(baton->db->_handle, baton->id, baton->value);
+}
+
+void Database::RegisterTraceCallback(Baton* b) {
+    std::unique_ptr<Baton> baton(b);
+    assert(baton->db->open);
+    assert(baton->db->_handle);
+    Database* db = baton->db;
+
+    if (db->debug_trace == NULL) {
+        // Add it.
+        db->debug_trace = new AsyncTrace(db, TraceCallback);
+        sqlite3_trace(db->_handle, TraceCallback, db);
+    }
+    else {
+        // Remove it.
+        sqlite3_trace(db->_handle, NULL, NULL);
+        db->debug_trace->finish();
+        db->debug_trace = NULL;
+    }
+}
+
+void Database::TraceCallback(void* db, const char* sql) {
+    // Note: This function is called in the thread pool.
+    // Note: Some queries, such as "EXPLAIN" queries, are not sent through this.
+    static_cast<Database*>(db)->debug_trace->send(new std::string(sql));
+}
+
+void Database::TraceCallback(Database* db, std::string* s) {
+    std::unique_ptr<std::string> sql(s);
+    // Note: This function is called in the main V8 thread.
+    Napi::Env env = db->Env();
+    Napi::HandleScope scope(env);
+
+    Napi::Value argv[] = {
+        Napi::String::New(env, "trace"),
+        Napi::String::New(env, sql->c_str())
+    };
+    EMIT_EVENT(db->Value(), 2, argv);
+}
+
+void Database::RegisterProfileCallback(Baton* b) {
+    std::unique_ptr<Baton> baton(b);
+    assert(baton->db->open);
+    assert(baton->db->_handle);
+    Database* db = baton->db;
+
+    if (db->debug_profile == NULL) {
+        // Add it.
+        db->debug_profile = new AsyncProfile(db, ProfileCallback);
+        sqlite3_profile(db->_handle, ProfileCallback, db);
+    }
+    else {
+        // Remove it.
+        sqlite3_profile(db->_handle, NULL, NULL);
+        db->debug_profile->finish();
+        db->debug_profile = NULL;
+    }
+}
+
+void Database::ProfileCallback(void* db, const char* sql, sqlite3_uint64 nsecs) {
+    // Note: This function is called in the thread pool.
+    // Note: Some queries, such as "EXPLAIN" queries, are not sent through this.
+    ProfileInfo* info = new ProfileInfo();
+    info->sql = std::string(sql);
+    info->nsecs = nsecs;
+    static_cast<Database*>(db)->debug_profile->send(info);
+}
+
+void Database::ProfileCallback(Database *db, ProfileInfo* i) {
+    std::unique_ptr<ProfileInfo> info(i);
+    Napi::Env env = db->Env();
+    Napi::HandleScope scope(env);
+
+    Napi::Value argv[] = {
+        Napi::String::New(env, "profile"),
+        Napi::String::New(env, info->sql.c_str()),
+        Napi::Number::New(env, (double)info->nsecs / 1000000.0)
+    };
+    EMIT_EVENT(db->Value(), 3, argv);
+}
+
+void Database::RegisterUpdateCallback(Baton* b) {
+    std::unique_ptr<Baton> baton(b);
+    assert(baton->db->open);
+    assert(baton->db->_handle);
+    Database* db = baton->db;
+
+    if (db->update_event == NULL) {
+        // Add it.
+        db->update_event = new AsyncUpdate(db, UpdateCallback);
+        sqlite3_update_hook(db->_handle, UpdateCallback, db);
+    }
+    else {
+        // Remove it.
+        sqlite3_update_hook(db->_handle, NULL, NULL);
+        db->update_event->finish();
+        db->update_event = NULL;
+    }
+}
+
+void Database::UpdateCallback(void* db, int type, const char* database,
+        const char* table, sqlite3_int64 rowid) {
+    // Note: This function is called in the thread pool.
+    // Note: Some queries, such as "EXPLAIN" queries, are not sent through this.
+    UpdateInfo* info = new UpdateInfo();
+    info->type = type;
+    info->database = std::string(database);
+    info->table = std::string(table);
+    info->rowid = rowid;
+    static_cast<Database*>(db)->update_event->send(info);
+}
+
+void Database::UpdateCallback(Database *db, UpdateInfo* i) {
+    std::unique_ptr<UpdateInfo> info(i);
+    Napi::Env env = db->Env();
+    Napi::HandleScope scope(env);
+
+    Napi::Value argv[] = {
+        Napi::String::New(env, "change"),
+        Napi::String::New(env, sqlite_authorizer_string(info->type)),
+        Napi::String::New(env, info->database.c_str()),
+        Napi::String::New(env, info->table.c_str()),
+        Napi::Number::New(env, info->rowid),
+    };
+    EMIT_EVENT(db->Value(), 5, argv);
+}
+
+Napi::Value Database::Exec(const Napi::CallbackInfo& info) {
+    Napi::Env env = this->Env();
+    Database* db = this;
+
+    REQUIRE_ARGUMENT_STRING(0, sql);
+    OPTIONAL_ARGUMENT_FUNCTION(1, callback);
+
+    Baton* baton = new ExecBaton(db, callback, sql.c_str());
+    db->Schedule(Work_BeginExec, baton, true);
+
+    return info.This();
+}
+
+void Database::Work_BeginExec(Baton* baton) {
+    assert(baton->db->locked);
+    assert(baton->db->open);
+    assert(baton->db->_handle);
+    assert(baton->db->pending == 0);
+    baton->db->pending++;
+    Napi::Env env = baton->db->Env();
+    int status = napi_create_async_work(
+        env, NULL, Napi::String::New(env, "sqlite3.Database.Exec"),
+        Work_Exec, Work_AfterExec, baton, &baton->request
+    );
+    assert(status == 0);
+    napi_queue_async_work(env, baton->request);
+}
+
+void Database::Work_Exec(napi_env e, void* data) {
+    ExecBaton* baton = static_cast<ExecBaton*>(data);
+
+    char* message = NULL;
+    baton->status = sqlite3_exec(
+        baton->db->_handle,
+        baton->sql.c_str(),
+        NULL,
+        NULL,
+        &message
+    );
+
+    if (baton->status != SQLITE_OK && message != NULL) {
+        baton->message = std::string(message);
+        sqlite3_free(message);
+    }
+}
+
+void Database::Work_AfterExec(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<ExecBaton> baton(static_cast<ExecBaton*>(data));
+
+    Database* db = baton->db;
+    db->pending--;
+
+    Napi::Env env = db->Env();
+    Napi::HandleScope scope(env);
+
+    Napi::Function cb = baton->callback.Value();
+
+    if (baton->status != SQLITE_OK) {
+        EXCEPTION(Napi::String::New(env, baton->message.c_str()), baton->status, exception);
+
+        if (IS_FUNCTION(cb)) {
+            Napi::Value argv[] = { exception };
+            TRY_CATCH_CALL(db->Value(), cb, 1, argv);
+        }
+        else {
+            Napi::Value info[] = { Napi::String::New(env, "error"), exception };
+            EMIT_EVENT(db->Value(), 2, info);
+        }
+    }
+    else if (IS_FUNCTION(cb)) {
+        Napi::Value argv[] = { env.Null() };
+        TRY_CATCH_CALL(db->Value(), cb, 1, argv);
+    }
+
+    db->Process();
+}
+
+Napi::Value Database::Wait(const Napi::CallbackInfo& info) {
+    Napi::Env env = info.Env();
+    Database* db = this;
+
+    OPTIONAL_ARGUMENT_FUNCTION(0, callback);
+
+    Baton* baton = new Baton(db, callback);
+    db->Schedule(Work_Wait, baton, true);
+
+    return info.This();
+}
+
+void Database::Work_Wait(Baton* b) {
+    std::unique_ptr<Baton> baton(b);
+
+    Napi::Env env = baton->db->Env();
+    Napi::HandleScope scope(env);
+
+    assert(baton->db->locked);
+    assert(baton->db->open);
+    assert(baton->db->_handle);
+    assert(baton->db->pending == 0);
+
+    Napi::Function cb = baton->callback.Value();
+    if (IS_FUNCTION(cb)) {
+        Napi::Value argv[] = { env.Null() };
+        TRY_CATCH_CALL(baton->db->Value(), cb, 1, argv);
+    }
+
+    baton->db->Process();
+}
+
+Napi::Value Database::LoadExtension(const Napi::CallbackInfo& info) {
+    Napi::Env env = this->Env();
+    Database* db = this;
+
+    REQUIRE_ARGUMENT_STRING(0, filename);
+    OPTIONAL_ARGUMENT_FUNCTION(1, callback);
+
+    Baton* baton = new LoadExtensionBaton(db, callback, filename.c_str());
+    db->Schedule(Work_BeginLoadExtension, baton, true);
+
+    return info.This();
+}
+
+void Database::Work_BeginLoadExtension(Baton* baton) {
+    assert(baton->db->locked);
+    assert(baton->db->open);
+    assert(baton->db->_handle);
+    assert(baton->db->pending == 0);
+    baton->db->pending++;
+    Napi::Env env = baton->db->Env();
+    int status = napi_create_async_work(
+        env, NULL, Napi::String::New(env, "sqlite3.Database.LoadExtension"),
+        Work_LoadExtension, Work_AfterLoadExtension, baton, &baton->request
+    );
+    assert(status == 0);
+    napi_queue_async_work(env, baton->request);
+}
+
+void Database::Work_LoadExtension(napi_env e, void* data) {
+    LoadExtensionBaton* baton = static_cast<LoadExtensionBaton*>(data);
+
+    sqlite3_enable_load_extension(baton->db->_handle, 1);
+
+    char* message = NULL;
+    baton->status = sqlite3_load_extension(
+        baton->db->_handle,
+        baton->filename.c_str(),
+        0,
+        &message
+    );
+
+    sqlite3_enable_load_extension(baton->db->_handle, 0);
+
+    if (baton->status != SQLITE_OK && message != NULL) {
+        baton->message = std::string(message);
+        sqlite3_free(message);
+    }
+}
+
+void Database::Work_AfterLoadExtension(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<LoadExtensionBaton> baton(static_cast<LoadExtensionBaton*>(data));
+
+    Database* db = baton->db;
+    db->pending--;
+
+    Napi::Env env = db->Env();
+    Napi::HandleScope scope(env);
+
+    Napi::Function cb = baton->callback.Value();
+
+    if (baton->status != SQLITE_OK) {
+        EXCEPTION(Napi::String::New(env, baton->message.c_str()), baton->status, exception);
+
+        if (IS_FUNCTION(cb)) {
+            Napi::Value argv[] = { exception };
+            TRY_CATCH_CALL(db->Value(), cb, 1, argv);
+        }
+        else {
+            Napi::Value info[] = { Napi::String::New(env, "error"), exception };
+            EMIT_EVENT(db->Value(), 2, info);
+        }
+    }
+    else if (IS_FUNCTION(cb)) {
+        Napi::Value argv[] = { env.Null() };
+        TRY_CATCH_CALL(db->Value(), cb, 1, argv);
+    }
+
+    db->Process();
+}
+
+void Database::RemoveCallbacks() {
+    if (debug_trace) {
+        debug_trace->finish();
+        debug_trace = NULL;
+    }
+    if (debug_profile) {
+        debug_profile->finish();
+        debug_profile = NULL;
+    }
+    if (update_event) {
+        update_event->finish();
+        update_event = NULL;
+    }
+}
diff --git a/node_modules/sqlite3/src/database.h b/node_modules/sqlite3/src/database.h
new file mode 100644
index 0000000..420b5dd
--- /dev/null
+++ b/node_modules/sqlite3/src/database.h
@@ -0,0 +1,214 @@
+
+#ifndef NODE_SQLITE3_SRC_DATABASE_H
+#define NODE_SQLITE3_SRC_DATABASE_H
+
+
+#include <assert.h>
+#include <string>
+#include <queue>
+
+#include <sqlite3.h>
+#include <napi.h>
+
+#include "async.h"
+
+using namespace Napi;
+
+namespace node_sqlite3 {
+
+class Database;
+
+
+class Database : public Napi::ObjectWrap<Database> {
+public:
+#if NAPI_VERSION < 6
+    static Napi::FunctionReference constructor;
+#endif
+    static Napi::Object Init(Napi::Env env, Napi::Object exports);
+
+    static inline bool HasInstance(Napi::Value val) {
+        Napi::Env env = val.Env();
+        Napi::HandleScope scope(env);
+        if (!val.IsObject()) return false;
+        Napi::Object obj = val.As<Napi::Object>();
+#if NAPI_VERSION < 6
+        return obj.InstanceOf(constructor.Value());
+#else
+        Napi::FunctionReference* constructor =
+            env.GetInstanceData<Napi::FunctionReference>();
+        return obj.InstanceOf(constructor->Value());
+#endif
+    }
+
+    struct Baton {
+        napi_async_work request = NULL;
+        Database* db;
+        Napi::FunctionReference callback;
+        int status;
+        std::string message;
+
+        Baton(Database* db_, Napi::Function cb_) :
+                db(db_), status(SQLITE_OK) {
+            db->Ref();
+            if (!cb_.IsUndefined() && cb_.IsFunction()) {
+                callback.Reset(cb_, 1);
+            }
+        }
+        virtual ~Baton() {
+            if (request) napi_delete_async_work(db->Env(), request);
+            db->Unref();
+            callback.Reset();
+        }
+    };
+
+    struct OpenBaton : Baton {
+        std::string filename;
+        int mode;
+        OpenBaton(Database* db_, Napi::Function cb_, const char* filename_, int mode_) :
+            Baton(db_, cb_), filename(filename_), mode(mode_) {}
+    };
+
+    struct ExecBaton : Baton {
+        std::string sql;
+        ExecBaton(Database* db_, Napi::Function cb_, const char* sql_) :
+            Baton(db_, cb_), sql(sql_) {}
+    };
+
+    struct LoadExtensionBaton : Baton {
+        std::string filename;
+        LoadExtensionBaton(Database* db_, Napi::Function cb_, const char* filename_) :
+            Baton(db_, cb_), filename(filename_) {}
+    };
+
+    struct LimitBaton : Baton {
+        int id;
+        int value;
+        LimitBaton(Database* db_, Napi::Function cb_, int id_, int value_) :
+            Baton(db_, cb_), id(id_), value(value_) {}
+    };
+
+    typedef void (*Work_Callback)(Baton* baton);
+
+    struct Call {
+        Call(Work_Callback cb_, Baton* baton_, bool exclusive_ = false) :
+            callback(cb_), exclusive(exclusive_), baton(baton_) {};
+        Work_Callback callback;
+        bool exclusive;
+        Baton* baton;
+    };
+
+    struct ProfileInfo {
+        std::string sql;
+        sqlite3_int64 nsecs;
+    };
+
+    struct UpdateInfo {
+        int type;
+        std::string database;
+        std::string table;
+        sqlite3_int64 rowid;
+    };
+
+    bool IsOpen() { return open; }
+    bool IsLocked() { return locked; }
+
+    typedef Async<std::string, Database> AsyncTrace;
+    typedef Async<ProfileInfo, Database> AsyncProfile;
+    typedef Async<UpdateInfo, Database> AsyncUpdate;
+
+    friend class Statement;
+    friend class Backup;
+
+    void init() {
+        _handle = NULL;
+        open = false;
+        closing = false;
+        locked = false;
+        pending = 0;
+        serialize = false;
+        debug_trace = NULL;
+        debug_profile = NULL;
+        update_event = NULL;
+    }
+
+    Database(const Napi::CallbackInfo& info);
+
+    ~Database() {
+        RemoveCallbacks();
+        sqlite3_close(_handle);
+        _handle = NULL;
+        open = false;
+    }
+
+protected:
+    static void Work_BeginOpen(Baton* baton);
+    static void Work_Open(napi_env env, void* data);
+    static void Work_AfterOpen(napi_env env, napi_status status, void* data);
+
+    Napi::Value OpenGetter(const Napi::CallbackInfo& info);
+
+    void Schedule(Work_Callback callback, Baton* baton, bool exclusive = false);
+    void Process();
+
+    Napi::Value Exec(const Napi::CallbackInfo& info);
+    static void Work_BeginExec(Baton* baton);
+    static void Work_Exec(napi_env env, void* data);
+    static void Work_AfterExec(napi_env env, napi_status status, void* data);
+
+    Napi::Value Wait(const Napi::CallbackInfo& info);
+    static void Work_Wait(Baton* baton);
+
+    Napi::Value Close(const Napi::CallbackInfo& info);
+    static void Work_BeginClose(Baton* baton);
+    static void Work_Close(napi_env env, void* data);
+    static void Work_AfterClose(napi_env env, napi_status status, void* data);
+
+    Napi::Value LoadExtension(const Napi::CallbackInfo& info);
+    static void Work_BeginLoadExtension(Baton* baton);
+    static void Work_LoadExtension(napi_env env, void* data);
+    static void Work_AfterLoadExtension(napi_env env, napi_status status, void* data);
+
+    Napi::Value Serialize(const Napi::CallbackInfo& info);
+    Napi::Value Parallelize(const Napi::CallbackInfo& info);
+
+    Napi::Value Configure(const Napi::CallbackInfo& info);
+
+    Napi::Value Interrupt(const Napi::CallbackInfo& info);
+
+    static void SetBusyTimeout(Baton* baton);
+    static void SetLimit(Baton* baton);
+
+    static void RegisterTraceCallback(Baton* baton);
+    static void TraceCallback(void* db, const char* sql);
+    static void TraceCallback(Database* db, std::string* sql);
+
+    static void RegisterProfileCallback(Baton* baton);
+    static void ProfileCallback(void* db, const char* sql, sqlite3_uint64 nsecs);
+    static void ProfileCallback(Database* db, ProfileInfo* info);
+
+    static void RegisterUpdateCallback(Baton* baton);
+    static void UpdateCallback(void* db, int type, const char* database, const char* table, sqlite3_int64 rowid);
+    static void UpdateCallback(Database* db, UpdateInfo* info);
+
+    void RemoveCallbacks();
+
+protected:
+    sqlite3* _handle;
+
+    bool open;
+    bool closing;
+    bool locked;
+    unsigned int pending;
+
+    bool serialize;
+
+    std::queue<Call*> queue;
+
+    AsyncTrace* debug_trace;
+    AsyncProfile* debug_profile;
+    AsyncUpdate* update_event;
+};
+
+}
+
+#endif
diff --git a/node_modules/sqlite3/src/gcc-preinclude.h b/node_modules/sqlite3/src/gcc-preinclude.h
new file mode 100644
index 0000000..7a52a4d
--- /dev/null
+++ b/node_modules/sqlite3/src/gcc-preinclude.h
@@ -0,0 +1,30 @@
+// http://web.archive.org/web/20140401031018/http://rjpower9000.wordpress.com:80/2012/04/09/fun-with-shared-libraries-version-glibc_2-14-not-found/
+
+#if defined(__linux__)
+
+#define _GNU_SOURCE
+#include <features.h>
+#undef _GNU_SOURCE
+
+#if defined(__USE_GNU)
+
+#if defined(__x86_64__)
+__asm__(".symver memcpy,memcpy@GLIBC_2.2.5");
+__asm__(".symver exp,exp@GLIBC_2.2.5");
+__asm__(".symver log,log@GLIBC_2.2.5");
+__asm__(".symver log2,log2@GLIBC_2.2.5");
+__asm__(".symver pow,pow@GLIBC_2.2.5");
+__asm__(".symver fcntl64,fcntl@GLIBC_2.2.5");
+#endif
+
+#if defined(__aarch64__) || defined(_M_ARM64)
+__asm__(".symver memcpy,memcpy@GLIBC_2.17");
+__asm__(".symver exp,exp@GLIBC_2.17");
+__asm__(".symver log,log@GLIBC_2.17");
+__asm__(".symver log2,log2@GLIBC_2.17");
+__asm__(".symver pow,pow@GLIBC_2.17");
+__asm__(".symver fcntl64,fcntl@GLIBC_2.17");
+#endif
+
+#endif
+#endif
diff --git a/node_modules/sqlite3/src/macros.h b/node_modules/sqlite3/src/macros.h
new file mode 100644
index 0000000..344642d
--- /dev/null
+++ b/node_modules/sqlite3/src/macros.h
@@ -0,0 +1,215 @@
+#ifndef NODE_SQLITE3_SRC_MACROS_H
+#define NODE_SQLITE3_SRC_MACROS_H
+
+const char* sqlite_code_string(int code);
+const char* sqlite_authorizer_string(int type);
+#include <vector>
+
+// TODO: better way to work around StringConcat?
+#include <napi.h>
+inline Napi::String StringConcat(Napi::Value str1, Napi::Value str2) {
+  return Napi::String::New(str1.Env(), str1.As<Napi::String>().Utf8Value() +
+                    str2.As<Napi::String>().Utf8Value() );
+}
+
+// A Napi substitute IsInt32()
+inline bool OtherIsInt(Napi::Number source) {
+    double orig_val = source.DoubleValue();
+    double int_val = (double)source.Int32Value();
+    if (orig_val == int_val) {
+        return true;
+    } else {
+        return false;
+    }
+}
+
+#define IS_FUNCTION(cb) \
+    !cb.IsUndefined() && cb.IsFunction()
+
+#define REQUIRE_ARGUMENTS(n)                                                   \
+    if (info.Length() < (n)) {                                                 \
+        Napi::TypeError::New(env, "Expected " #n "arguments").ThrowAsJavaScriptException(); \
+        return env.Null(); \
+    }
+
+
+#define REQUIRE_ARGUMENT_EXTERNAL(i, var)                                      \
+    if (info.Length() <= (i) || !info[i].IsExternal()) {                       \
+        Napi::TypeError::New(env, "Argument " #i " invalid").ThrowAsJavaScriptException(); \
+        return env.Null(); \
+    }                                                                          \
+    Napi::External var = info[i].As<Napi::External>();
+
+
+#define REQUIRE_ARGUMENT_FUNCTION(i, var)                                      \
+    if (info.Length() <= (i) || !info[i].IsFunction()) {                        \
+        Napi::TypeError::New(env, "Argument " #i " must be a function").ThrowAsJavaScriptException(); \
+        return env.Null(); \
+    }                                                                          \
+    Napi::Function var = info[i].As<Napi::Function>();
+
+
+#define REQUIRE_ARGUMENT_STRING(i, var)                                        \
+    if (info.Length() <= (i) || !info[i].IsString()) {                         \
+        Napi::TypeError::New(env, "Argument " #i " must be a string").ThrowAsJavaScriptException(); \
+        return env.Null(); \
+    }                                                                          \
+    std::string var = info[i].As<Napi::String>();
+
+#define REQUIRE_ARGUMENT_INTEGER(i, var)                                        \
+    if (info.Length() <= (i) || !info[i].IsNumber()) {                        \
+        Napi::TypeError::New(env, "Argument " #i " must be an integer").ThrowAsJavaScriptException(); \
+        return env.Null();        \
+    }                                                                          \
+    int var(info[i].As<Napi::Number>().Int32Value());
+
+#define OPTIONAL_ARGUMENT_FUNCTION(i, var)                                     \
+    Napi::Function var;                                                        \
+    if (info.Length() > i && !info[i].IsUndefined()) {                         \
+        if (!info[i].IsFunction()) {                                           \
+            Napi::TypeError::New(env, "Argument " #i " must be a function").ThrowAsJavaScriptException(); \
+            return env.Null(); \
+        }                                                                      \
+        var = info[i].As<Napi::Function>();                                    \
+    }
+
+
+#define OPTIONAL_ARGUMENT_INTEGER(i, var, default)                             \
+    int var;                                                                   \
+    if (info.Length() <= (i)) {                                                \
+        var = (default);                                                       \
+    }                                                                          \
+    else if (info[i].IsNumber()) {                                             \
+        if (OtherIsInt(info[i].As<Number>())) {                                \
+            var = info[i].As<Napi::Number>().Int32Value();                     \
+        }                                                                      \
+    }                                                                          \
+    else {                                                                     \
+        Napi::TypeError::New(env, "Argument " #i " must be an integer").ThrowAsJavaScriptException(); \
+        return env.Null(); \
+    }
+
+
+#define DEFINE_CONSTANT_INTEGER(target, constant, name)                        \
+    Napi::PropertyDescriptor::Value(#name, Napi::Number::New(env, constant),   \
+        static_cast<napi_property_attributes>(napi_enumerable | napi_configurable)),
+
+#define DEFINE_CONSTANT_STRING(target, constant, name)                         \
+    Napi::PropertyDescriptor::Value(#name, Napi::String::New(env, constant),   \
+        static_cast<napi_property_attributes>(napi_enumerable | napi_configurable)),
+
+#define EXCEPTION(msg, errno, name)                                            \
+    Napi::Value name = Napi::Error::New(env,                                   \
+        StringConcat(                                                          \
+            StringConcat(                                                      \
+                Napi::String::New(env, sqlite_code_string(errno)),             \
+                Napi::String::New(env, ": ")                                   \
+            ),                                                                 \
+            (msg)                                                              \
+        ).Utf8Value()                                                          \
+    ).Value();                                                                 \
+    Napi::Object name ##_obj = name.As<Napi::Object>();                        \
+    (name ##_obj).Set( Napi::String::New(env, "errno"), Napi::Number::New(env, errno)); \
+    (name ##_obj).Set( Napi::String::New(env, "code"),                         \
+        Napi::String::New(env, sqlite_code_string(errno)));
+
+
+#define EMIT_EVENT(obj, argc, argv)                                            \
+    TRY_CATCH_CALL((obj),                                                      \
+        (obj).Get("emit").As<Napi::Function>(),\
+        argc, argv                                                             \
+    );
+
+// The Mac OS compiler complains when argv is NULL unless we
+// first assign it to a locally defined variable.
+#define TRY_CATCH_CALL(context, callback, argc, argv, ...)                     \
+    Napi::Value* passed_argv = argv;\
+    std::vector<napi_value> args;\
+    if ((argc != 0) && (passed_argv != NULL)) {\
+      args.assign(passed_argv, passed_argv + argc);\
+    }\
+    Napi::Value res = (callback).Call(Napi::Value(context), args);             \
+    if (res.IsEmpty()) return __VA_ARGS__;
+
+#define WORK_DEFINITION(name)                                                  \
+    Napi::Value name(const Napi::CallbackInfo& info);                          \
+    static void Work_Begin##name(Baton* baton);                                \
+    static void Work_##name(napi_env env, void* data);                         \
+    static void Work_After##name(napi_env env, napi_status status, void* data);
+
+#define STATEMENT_BEGIN(type)                                                  \
+    assert(baton);                                                             \
+    assert(baton->stmt);                                                       \
+    assert(!baton->stmt->locked);                                              \
+    assert(!baton->stmt->finalized);                                           \
+    assert(baton->stmt->prepared);                                             \
+    baton->stmt->locked = true;                                                \
+    baton->stmt->db->pending++;                                                \
+    Napi::Env env = baton->stmt->Env();                                        \
+    int status = napi_create_async_work(                                       \
+        env, NULL, Napi::String::New(env, "sqlite3.Statement."#type),          \
+        Work_##type, Work_After##type, baton, &baton->request                  \
+    );                                                                         \
+    assert(status == 0);                                                       \
+    napi_queue_async_work(env, baton->request);
+
+#define STATEMENT_INIT(type)                                                   \
+    type* baton = static_cast<type*>(data);                                    \
+    Statement* stmt = baton->stmt;
+
+#define STATEMENT_MUTEX(name) \
+    if (!stmt->db->_handle) { \
+        stmt->status = SQLITE_MISUSE; \
+        stmt->message = "Database handle is closed"; \
+        return; \
+    } \
+    sqlite3_mutex* name = sqlite3_db_mutex(stmt->db->_handle);
+
+#define STATEMENT_END()                                                        \
+    assert(stmt->locked);                                                      \
+    assert(stmt->db->pending);                                                 \
+    stmt->locked = false;                                                      \
+    stmt->db->pending--;                                                       \
+    stmt->Process();                                                           \
+    stmt->db->Process();
+
+#define BACKUP_BEGIN(type)                                                     \
+    assert(baton);                                                             \
+    assert(baton->backup);                                                     \
+    assert(!baton->backup->locked);                                            \
+    assert(!baton->backup->finished);                                          \
+    assert(baton->backup->inited);                                             \
+    baton->backup->locked = true;                                              \
+    baton->backup->db->pending++;                                              \
+    Napi::Env env = baton->backup->Env();                                      \
+    int status = napi_create_async_work(                                       \
+        env, NULL, Napi::String::New(env, "sqlite3.Backup."#type),             \
+        Work_##type, Work_After##type, baton, &baton->request                  \
+    );                                                                         \
+    assert(status == 0);                                                       \
+    napi_queue_async_work(env, baton->request);
+
+#define BACKUP_INIT(type)                                                      \
+    type* baton = static_cast<type*>(data);                                    \
+    Backup* backup = baton->backup;
+
+#define BACKUP_END()                                                           \
+    assert(backup->locked);                                                    \
+    assert(backup->db->pending);                                               \
+    backup->locked = false;                                                    \
+    backup->db->pending--;                                                     \
+    backup->Process();                                                         \
+    backup->db->Process();
+
+#define DELETE_FIELD(field)                                                    \
+    if (field != NULL) {                                                       \
+        switch ((field)->type) {                                               \
+            case SQLITE_INTEGER: delete (Values::Integer*)(field); break;      \
+            case SQLITE_FLOAT:   delete (Values::Float*)(field); break;        \
+            case SQLITE_TEXT:    delete (Values::Text*)(field); break;         \
+            case SQLITE_BLOB:    delete (Values::Blob*)(field); break;         \
+            case SQLITE_NULL:    delete (Values::Null*)(field); break;         \
+        }                                                                      \
+    }
+
+#endif
diff --git a/node_modules/sqlite3/src/node_sqlite3.cc b/node_modules/sqlite3/src/node_sqlite3.cc
new file mode 100644
index 0000000..6f47a68
--- /dev/null
+++ b/node_modules/sqlite3/src/node_sqlite3.cc
@@ -0,0 +1,128 @@
+#include <stdint.h>
+#include <sstream>
+#include <cstring>
+#include <string>
+#include <sqlite3.h>
+
+#include "macros.h"
+#include "database.h"
+#include "statement.h"
+#include "backup.h"
+
+using namespace node_sqlite3;
+
+namespace {
+
+Napi::Object RegisterModule(Napi::Env env, Napi::Object exports) {
+    Napi::HandleScope scope(env);
+
+    Database::Init(env, exports);
+    Statement::Init(env, exports);
+    Backup::Init(env, exports);
+
+    exports.DefineProperties({
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_OPEN_READONLY, OPEN_READONLY)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_OPEN_READWRITE, OPEN_READWRITE)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_OPEN_CREATE, OPEN_CREATE)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_OPEN_FULLMUTEX, OPEN_FULLMUTEX)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_OPEN_URI, OPEN_URI)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_OPEN_SHAREDCACHE, OPEN_SHAREDCACHE)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_OPEN_PRIVATECACHE, OPEN_PRIVATECACHE)
+        DEFINE_CONSTANT_STRING(exports, SQLITE_VERSION, VERSION)
+#ifdef SQLITE_SOURCE_ID
+        DEFINE_CONSTANT_STRING(exports, SQLITE_SOURCE_ID, SOURCE_ID)
+#endif
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_VERSION_NUMBER, VERSION_NUMBER)
+
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_OK, OK)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_ERROR, ERROR)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_INTERNAL, INTERNAL)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_PERM, PERM)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_ABORT, ABORT)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_BUSY, BUSY)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_LOCKED, LOCKED)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_NOMEM, NOMEM)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_READONLY, READONLY)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_INTERRUPT, INTERRUPT)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_IOERR, IOERR)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_CORRUPT, CORRUPT)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_NOTFOUND, NOTFOUND)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_FULL, FULL)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_CANTOPEN, CANTOPEN)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_PROTOCOL, PROTOCOL)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_EMPTY, EMPTY)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_SCHEMA, SCHEMA)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_TOOBIG, TOOBIG)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_CONSTRAINT, CONSTRAINT)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_MISMATCH, MISMATCH)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_MISUSE, MISUSE)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_NOLFS, NOLFS)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_AUTH, AUTH)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_FORMAT, FORMAT)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_RANGE, RANGE)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_NOTADB, NOTADB)
+
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_LIMIT_LENGTH, LIMIT_LENGTH)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_LIMIT_SQL_LENGTH, LIMIT_SQL_LENGTH)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_LIMIT_COLUMN, LIMIT_COLUMN)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_LIMIT_EXPR_DEPTH, LIMIT_EXPR_DEPTH)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_LIMIT_COMPOUND_SELECT, LIMIT_COMPOUND_SELECT)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_LIMIT_VDBE_OP, LIMIT_VDBE_OP)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_LIMIT_FUNCTION_ARG, LIMIT_FUNCTION_ARG)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_LIMIT_ATTACHED, LIMIT_ATTACHED)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_LIMIT_LIKE_PATTERN_LENGTH, LIMIT_LIKE_PATTERN_LENGTH)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_LIMIT_VARIABLE_NUMBER, LIMIT_VARIABLE_NUMBER)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_LIMIT_TRIGGER_DEPTH, LIMIT_TRIGGER_DEPTH)
+        DEFINE_CONSTANT_INTEGER(exports, SQLITE_LIMIT_WORKER_THREADS, LIMIT_WORKER_THREADS)
+    });
+
+    return exports;
+}
+
+}
+
+const char* sqlite_code_string(int code) {
+    switch (code) {
+        case SQLITE_OK:         return "SQLITE_OK";
+        case SQLITE_ERROR:      return "SQLITE_ERROR";
+        case SQLITE_INTERNAL:   return "SQLITE_INTERNAL";
+        case SQLITE_PERM:       return "SQLITE_PERM";
+        case SQLITE_ABORT:      return "SQLITE_ABORT";
+        case SQLITE_BUSY:       return "SQLITE_BUSY";
+        case SQLITE_LOCKED:     return "SQLITE_LOCKED";
+        case SQLITE_NOMEM:      return "SQLITE_NOMEM";
+        case SQLITE_READONLY:   return "SQLITE_READONLY";
+        case SQLITE_INTERRUPT:  return "SQLITE_INTERRUPT";
+        case SQLITE_IOERR:      return "SQLITE_IOERR";
+        case SQLITE_CORRUPT:    return "SQLITE_CORRUPT";
+        case SQLITE_NOTFOUND:   return "SQLITE_NOTFOUND";
+        case SQLITE_FULL:       return "SQLITE_FULL";
+        case SQLITE_CANTOPEN:   return "SQLITE_CANTOPEN";
+        case SQLITE_PROTOCOL:   return "SQLITE_PROTOCOL";
+        case SQLITE_EMPTY:      return "SQLITE_EMPTY";
+        case SQLITE_SCHEMA:     return "SQLITE_SCHEMA";
+        case SQLITE_TOOBIG:     return "SQLITE_TOOBIG";
+        case SQLITE_CONSTRAINT: return "SQLITE_CONSTRAINT";
+        case SQLITE_MISMATCH:   return "SQLITE_MISMATCH";
+        case SQLITE_MISUSE:     return "SQLITE_MISUSE";
+        case SQLITE_NOLFS:      return "SQLITE_NOLFS";
+        case SQLITE_AUTH:       return "SQLITE_AUTH";
+        case SQLITE_FORMAT:     return "SQLITE_FORMAT";
+        case SQLITE_RANGE:      return "SQLITE_RANGE";
+        case SQLITE_NOTADB:     return "SQLITE_NOTADB";
+        case SQLITE_ROW:        return "SQLITE_ROW";
+        case SQLITE_DONE:       return "SQLITE_DONE";
+        default:                return "UNKNOWN";
+    }
+}
+
+const char* sqlite_authorizer_string(int type) {
+    switch (type) {
+        case SQLITE_INSERT:     return "insert";
+        case SQLITE_UPDATE:     return "update";
+        case SQLITE_DELETE:     return "delete";
+        default:                return "";
+    }
+}
+
+NODE_API_MODULE(node_sqlite3, RegisterModule)
diff --git a/node_modules/sqlite3/src/statement.cc b/node_modules/sqlite3/src/statement.cc
new file mode 100644
index 0000000..29e06f9
--- /dev/null
+++ b/node_modules/sqlite3/src/statement.cc
@@ -0,0 +1,954 @@
+#include <string.h>
+#include <napi.h>
+#include <uv.h>
+
+#include "macros.h"
+#include "database.h"
+#include "statement.h"
+
+using namespace node_sqlite3;
+
+Napi::Object Statement::Init(Napi::Env env, Napi::Object exports) {
+    Napi::HandleScope scope(env);
+
+    // declare napi_default_method here as it is only available in Node v14.12.0+
+    napi_property_attributes napi_default_method = static_cast<napi_property_attributes>(napi_writable | napi_configurable);
+
+    Napi::Function t = DefineClass(env, "Statement", {
+      InstanceMethod("bind", &Statement::Bind, napi_default_method),
+      InstanceMethod("get", &Statement::Get, napi_default_method),
+      InstanceMethod("run", &Statement::Run, napi_default_method),
+      InstanceMethod("all", &Statement::All, napi_default_method),
+      InstanceMethod("each", &Statement::Each, napi_default_method),
+      InstanceMethod("reset", &Statement::Reset, napi_default_method),
+      InstanceMethod("finalize", &Statement::Finalize_, napi_default_method),
+    });
+
+    exports.Set("Statement", t);
+    return exports;
+}
+
+// A Napi InstanceOf for Javascript Objects "Date" and "RegExp"
+bool OtherInstanceOf(Napi::Object source, const char* object_type) {
+    if (strncmp(object_type, "Date", 4) == 0) {
+        return source.InstanceOf(source.Env().Global().Get("Date").As<Function>());
+    } else if (strncmp(object_type, "RegExp", 6) == 0) {
+        return source.InstanceOf(source.Env().Global().Get("RegExp").As<Function>());
+    }
+
+    return false;
+}
+
+void Statement::Process() {
+    if (finalized && !queue.empty()) {
+        return CleanQueue();
+    }
+
+    while (prepared && !locked && !queue.empty()) {
+        std::unique_ptr<Call> call(queue.front());
+        queue.pop();
+
+        call->callback(call->baton);
+    }
+}
+
+void Statement::Schedule(Work_Callback callback, Baton* baton) {
+    if (finalized) {
+        queue.push(new Call(callback, baton));
+        CleanQueue();
+    }
+    else if (!prepared || locked) {
+        queue.push(new Call(callback, baton));
+    }
+    else {
+        callback(baton);
+    }
+}
+
+template <class T> void Statement::Error(T* baton) {
+    Statement* stmt = baton->stmt;
+
+    Napi::Env env = stmt->Env();
+    Napi::HandleScope scope(env);
+
+    // Fail hard on logic errors.
+    assert(stmt->status != 0);
+    EXCEPTION(Napi::String::New(env, stmt->message.c_str()), stmt->status, exception);
+
+    Napi::Function cb = baton->callback.Value();
+
+    if (IS_FUNCTION(cb)) {
+        Napi::Value argv[] = { exception };
+        TRY_CATCH_CALL(stmt->Value(), cb, 1, argv);
+    }
+    else {
+        Napi::Value argv[] = { Napi::String::New(env, "error"), exception };
+        EMIT_EVENT(stmt->Value(), 2, argv);
+    }
+}
+
+// { Database db, String sql, Array params, Function callback }
+Statement::Statement(const Napi::CallbackInfo& info) : Napi::ObjectWrap<Statement>(info) {
+    Napi::Env env = info.Env();
+    int length = info.Length();
+
+    if (length <= 0 || !Database::HasInstance(info[0])) {
+        Napi::TypeError::New(env, "Database object expected").ThrowAsJavaScriptException();
+        return;
+    }
+    else if (length <= 1 || !info[1].IsString()) {
+        Napi::TypeError::New(env, "SQL query expected").ThrowAsJavaScriptException();
+        return;
+    }
+    else if (length > 2 && !info[2].IsUndefined() && !info[2].IsFunction()) {
+        Napi::TypeError::New(env, "Callback expected").ThrowAsJavaScriptException();
+        return;
+    }
+
+    Database* db = Napi::ObjectWrap<Database>::Unwrap(info[0].As<Napi::Object>());
+    Napi::String sql = info[1].As<Napi::String>();
+
+    info.This().As<Napi::Object>().DefineProperty(Napi::PropertyDescriptor::Value("sql", sql, napi_default));
+
+    init(db);
+    Statement* stmt = this;
+
+    PrepareBaton* baton = new PrepareBaton(db, info[2].As<Napi::Function>(), stmt);
+    baton->sql = std::string(sql.As<Napi::String>().Utf8Value().c_str());
+    db->Schedule(Work_BeginPrepare, baton);
+}
+
+void Statement::Work_BeginPrepare(Database::Baton* baton) {
+    assert(baton->db->open);
+    baton->db->pending++;
+    Napi::Env env = baton->db->Env();
+    int status = napi_create_async_work(
+        env, NULL, Napi::String::New(env, "sqlite3.Statement.Prepare"),
+        Work_Prepare, Work_AfterPrepare, baton, &baton->request
+    );
+    assert(status == 0);
+    napi_queue_async_work(env, baton->request);
+}
+
+void Statement::Work_Prepare(napi_env e, void* data) {
+    STATEMENT_INIT(PrepareBaton);
+
+    // In case preparing fails, we use a mutex to make sure we get the associated
+    // error message.
+    STATEMENT_MUTEX(mtx);
+    sqlite3_mutex_enter(mtx);
+
+    stmt->status = sqlite3_prepare_v2(
+        baton->db->_handle,
+        baton->sql.c_str(),
+        baton->sql.size(),
+        &stmt->_handle,
+        NULL
+    );
+
+    if (stmt->status != SQLITE_OK) {
+        stmt->message = std::string(sqlite3_errmsg(baton->db->_handle));
+        stmt->_handle = NULL;
+    }
+
+    sqlite3_mutex_leave(mtx);
+}
+
+void Statement::Work_AfterPrepare(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<PrepareBaton> baton(static_cast<PrepareBaton*>(data));
+    Statement* stmt = baton->stmt;
+
+    Napi::Env env = stmt->Env();
+    Napi::HandleScope scope(env);
+
+    if (stmt->status != SQLITE_OK) {
+        Error(baton.get());
+        stmt->Finalize_();
+    }
+    else {
+        stmt->prepared = true;
+        if (!baton->callback.IsEmpty() && baton->callback.Value().IsFunction()) {
+            Napi::Function cb = baton->callback.Value();
+            Napi::Value argv[] = { env.Null() };
+            TRY_CATCH_CALL(stmt->Value(), cb, 1, argv);
+        }
+    }
+
+    STATEMENT_END();
+}
+
+template <class T> Values::Field*
+                   Statement::BindParameter(const Napi::Value source, T pos) {
+    if (source.IsString()) {
+        std::string val = source.As<Napi::String>().Utf8Value();
+        return new Values::Text(pos, val.length(), val.c_str());
+    }
+    else if (OtherInstanceOf(source.As<Object>(), "RegExp")) {
+        std::string val = source.ToString().Utf8Value();
+        return new Values::Text(pos, val.length(), val.c_str());
+    }
+    else if (source.IsNumber()) {
+        if (OtherIsInt(source.As<Napi::Number>())) {
+            return new Values::Integer(pos, source.As<Napi::Number>().Int32Value());
+        } else {
+            return new Values::Float(pos, source.As<Napi::Number>().DoubleValue());
+        }
+    }
+    else if (source.IsBoolean()) {
+        return new Values::Integer(pos, source.As<Napi::Boolean>().Value() ? 1 : 0);
+    }
+    else if (source.IsNull()) {
+        return new Values::Null(pos);
+    }
+    else if (source.IsBuffer()) {
+        Napi::Buffer<char> buffer = source.As<Napi::Buffer<char>>();
+        return new Values::Blob(pos, buffer.Length(), buffer.Data());
+    }
+    else if (OtherInstanceOf(source.As<Object>(), "Date")) {
+        return new Values::Float(pos, source.ToNumber().DoubleValue());
+    }
+    else if (source.IsObject()) {
+        Napi::String napiVal = Napi::String::New(source.Env(), "[object Object]");
+        // Check whether toString returned a value that is not undefined.
+        if(napiVal.Type() == 0) {
+            return NULL;
+        }
+
+        std::string val = napiVal.Utf8Value();
+        return new Values::Text(pos, val.length(), val.c_str());
+    }
+    else {
+        return NULL;
+    }
+}
+
+template <class T> T* Statement::Bind(const Napi::CallbackInfo& info, int start, int last) {
+    Napi::Env env = info.Env();
+    Napi::HandleScope scope(env);
+
+    if (last < 0) last = info.Length();
+    Napi::Function callback;
+    if (last > start && info[last - 1].IsFunction()) {
+        callback = info[last - 1].As<Napi::Function>();
+        last--;
+    }
+
+    T* baton = new T(this, callback);
+
+    if (start < last) {
+        if (info[start].IsArray()) {
+            Napi::Array array = info[start].As<Napi::Array>();
+            int length = array.Length();
+            // Note: bind parameters start with 1.
+            for (int i = 0, pos = 1; i < length; i++, pos++) {
+                baton->parameters.push_back(BindParameter((array).Get(i), pos));
+            }
+        }
+        else if (!info[start].IsObject() || OtherInstanceOf(info[start].As<Object>(), "RegExp") || OtherInstanceOf(info[start].As<Object>(), "Date") || info[start].IsBuffer()) {
+            // Parameters directly in array.
+            // Note: bind parameters start with 1.
+            for (int i = start, pos = 1; i < last; i++, pos++) {
+                baton->parameters.push_back(BindParameter(info[i], pos));
+            }
+        }
+        else if (info[start].IsObject()) {
+            Napi::Object object = info[start].As<Napi::Object>();
+            Napi::Array array = object.GetPropertyNames();
+            int length = array.Length();
+            for (int i = 0; i < length; i++) {
+                Napi::Value name = (array).Get(i);
+                Napi::Number num = name.ToNumber();
+
+                if (num.Int32Value() == num.DoubleValue()) {
+                    baton->parameters.push_back(
+                        BindParameter((object).Get(name), num.Int32Value()));
+                }
+                else {
+                    baton->parameters.push_back(BindParameter((object).Get(name),
+                        name.As<Napi::String>().Utf8Value().c_str()));
+                }
+            }
+        }
+        else {
+            return NULL;
+        }
+    }
+
+    return baton;
+}
+
+bool Statement::Bind(const Parameters & parameters) {
+    if (parameters.size() == 0) {
+        return true;
+    }
+
+    sqlite3_reset(_handle);
+    sqlite3_clear_bindings(_handle);
+
+    Parameters::const_iterator it = parameters.begin();
+    Parameters::const_iterator end = parameters.end();
+
+    for (; it < end; ++it) {
+        Values::Field* field = *it;
+
+        if (field != NULL) {
+            unsigned int pos;
+            if (field->index > 0) {
+                pos = field->index;
+            }
+            else {
+                pos = sqlite3_bind_parameter_index(_handle, field->name.c_str());
+            }
+
+            switch (field->type) {
+                case SQLITE_INTEGER: {
+                    status = sqlite3_bind_int(_handle, pos,
+                        ((Values::Integer*)field)->value);
+                } break;
+                case SQLITE_FLOAT: {
+                    status = sqlite3_bind_double(_handle, pos,
+                        ((Values::Float*)field)->value);
+                } break;
+                case SQLITE_TEXT: {
+                    status = sqlite3_bind_text(_handle, pos,
+                        ((Values::Text*)field)->value.c_str(),
+                        ((Values::Text*)field)->value.size(), SQLITE_TRANSIENT);
+                } break;
+                case SQLITE_BLOB: {
+                    status = sqlite3_bind_blob(_handle, pos,
+                        ((Values::Blob*)field)->value,
+                        ((Values::Blob*)field)->length, SQLITE_TRANSIENT);
+                } break;
+                case SQLITE_NULL: {
+                    status = sqlite3_bind_null(_handle, pos);
+                } break;
+            }
+
+            if (status != SQLITE_OK) {
+                message = std::string(sqlite3_errmsg(db->_handle));
+                return false;
+            }
+        }
+    }
+
+    return true;
+}
+
+Napi::Value Statement::Bind(const Napi::CallbackInfo& info) {
+    Napi::Env env = info.Env();
+    Statement* stmt = this;
+
+    Baton* baton = stmt->Bind<Baton>(info);
+    if (baton == NULL) {
+        Napi::TypeError::New(env, "Data type is not supported").ThrowAsJavaScriptException();
+        return env.Null();
+    }
+    else {
+        stmt->Schedule(Work_BeginBind, baton);
+        return info.This();
+    }
+}
+
+void Statement::Work_BeginBind(Baton* baton) {
+    STATEMENT_BEGIN(Bind);
+}
+
+void Statement::Work_Bind(napi_env e, void* data) {
+    STATEMENT_INIT(Baton);
+
+    STATEMENT_MUTEX(mtx);
+    sqlite3_mutex_enter(mtx);
+    stmt->Bind(baton->parameters);
+    sqlite3_mutex_leave(mtx);
+}
+
+void Statement::Work_AfterBind(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<Baton> baton(static_cast<Baton*>(data));
+    Statement* stmt = baton->stmt;
+
+    Napi::Env env = stmt->Env();
+    Napi::HandleScope scope(env);
+
+    if (stmt->status != SQLITE_OK) {
+        Error(baton.get());
+    }
+    else {
+        // Fire callbacks.
+        Napi::Function cb = baton->callback.Value();
+        if (IS_FUNCTION(cb)) {
+            Napi::Value argv[] = { env.Null() };
+            TRY_CATCH_CALL(stmt->Value(), cb, 1, argv);
+        }
+    }
+
+    STATEMENT_END();
+}
+
+
+
+Napi::Value Statement::Get(const Napi::CallbackInfo& info) {
+    Napi::Env env = info.Env();
+    Statement* stmt = this;
+
+    Baton* baton = stmt->Bind<RowBaton>(info);
+    if (baton == NULL) {
+        Napi::Error::New(env, "Data type is not supported").ThrowAsJavaScriptException();
+        return env.Null();
+    }
+    else {
+        stmt->Schedule(Work_BeginGet, baton);
+        return info.This();
+    }
+}
+
+void Statement::Work_BeginGet(Baton* baton) {
+    STATEMENT_BEGIN(Get);
+}
+
+void Statement::Work_Get(napi_env e, void* data) {
+    STATEMENT_INIT(RowBaton);
+
+    if (stmt->status != SQLITE_DONE || baton->parameters.size()) {
+        STATEMENT_MUTEX(mtx);
+        sqlite3_mutex_enter(mtx);
+
+        if (stmt->Bind(baton->parameters)) {
+            stmt->status = sqlite3_step(stmt->_handle);
+
+            if (!(stmt->status == SQLITE_ROW || stmt->status == SQLITE_DONE)) {
+                stmt->message = std::string(sqlite3_errmsg(stmt->db->_handle));
+            }
+        }
+
+        sqlite3_mutex_leave(mtx);
+
+        if (stmt->status == SQLITE_ROW) {
+            // Acquire one result row before returning.
+            GetRow(&baton->row, stmt->_handle);
+        }
+    }
+}
+
+void Statement::Work_AfterGet(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<RowBaton> baton(static_cast<RowBaton*>(data));
+    Statement* stmt = baton->stmt;
+
+    Napi::Env env = stmt->Env();
+    Napi::HandleScope scope(env);
+
+    if (stmt->status != SQLITE_ROW && stmt->status != SQLITE_DONE) {
+        Error(baton.get());
+    }
+    else {
+        // Fire callbacks.
+        Napi::Function cb = baton->callback.Value();
+        if (IS_FUNCTION(cb)) {
+            if (stmt->status == SQLITE_ROW) {
+                // Create the result array from the data we acquired.
+                Napi::Value argv[] = { env.Null(), RowToJS(env, &baton->row) };
+                TRY_CATCH_CALL(stmt->Value(), cb, 2, argv);
+            }
+            else {
+                Napi::Value argv[] = { env.Null() };
+                TRY_CATCH_CALL(stmt->Value(), cb, 1, argv);
+            }
+        }
+    }
+
+    STATEMENT_END();
+}
+
+Napi::Value Statement::Run(const Napi::CallbackInfo& info) {
+    Napi::Env env = info.Env();
+    Statement* stmt = this;
+
+    Baton* baton = stmt->Bind<RunBaton>(info);
+    if (baton == NULL) {
+        Napi::Error::New(env, "Data type is not supported").ThrowAsJavaScriptException();
+        return env.Null();
+    }
+    else {
+        stmt->Schedule(Work_BeginRun, baton);
+        return info.This();
+    }
+}
+
+void Statement::Work_BeginRun(Baton* baton) {
+    STATEMENT_BEGIN(Run);
+}
+
+void Statement::Work_Run(napi_env e, void* data) {
+    STATEMENT_INIT(RunBaton);
+
+    STATEMENT_MUTEX(mtx);
+    sqlite3_mutex_enter(mtx);
+
+    // Make sure that we also reset when there are no parameters.
+    if (!baton->parameters.size()) {
+        sqlite3_reset(stmt->_handle);
+    }
+
+    if (stmt->Bind(baton->parameters)) {
+        stmt->status = sqlite3_step(stmt->_handle);
+
+        if (!(stmt->status == SQLITE_ROW || stmt->status == SQLITE_DONE)) {
+            stmt->message = std::string(sqlite3_errmsg(stmt->db->_handle));
+        }
+        else {
+            baton->inserted_id = sqlite3_last_insert_rowid(stmt->db->_handle);
+            baton->changes = sqlite3_changes(stmt->db->_handle);
+        }
+    }
+
+    sqlite3_mutex_leave(mtx);
+}
+
+void Statement::Work_AfterRun(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<RunBaton> baton(static_cast<RunBaton*>(data));
+    Statement* stmt = baton->stmt;
+
+    Napi::Env env = stmt->Env();
+    Napi::HandleScope scope(env);
+
+    if (stmt->status != SQLITE_ROW && stmt->status != SQLITE_DONE) {
+        Error(baton.get());
+    }
+    else {
+        // Fire callbacks.
+        Napi::Function cb = baton->callback.Value();
+        if (IS_FUNCTION(cb)) {
+            (stmt->Value()).Set(Napi::String::New(env, "lastID"), Napi::Number::New(env, baton->inserted_id));
+            (stmt->Value()).Set( Napi::String::New(env, "changes"), Napi::Number::New(env, baton->changes));
+
+            Napi::Value argv[] = { env.Null() };
+            TRY_CATCH_CALL(stmt->Value(), cb, 1, argv);
+        }
+    }
+
+    STATEMENT_END();
+}
+
+Napi::Value Statement::All(const Napi::CallbackInfo& info) {
+    Napi::Env env = info.Env();
+    Statement* stmt = this;
+
+    Baton* baton = stmt->Bind<RowsBaton>(info);
+    if (baton == NULL) {
+        Napi::Error::New(env, "Data type is not supported").ThrowAsJavaScriptException();
+        return env.Null();
+    }
+    else {
+        stmt->Schedule(Work_BeginAll, baton);
+        return info.This();
+    }
+}
+
+void Statement::Work_BeginAll(Baton* baton) {
+    STATEMENT_BEGIN(All);
+}
+
+void Statement::Work_All(napi_env e, void* data) {
+    STATEMENT_INIT(RowsBaton);
+
+    STATEMENT_MUTEX(mtx);
+    sqlite3_mutex_enter(mtx);
+
+    // Make sure that we also reset when there are no parameters.
+    if (!baton->parameters.size()) {
+        sqlite3_reset(stmt->_handle);
+    }
+
+    if (stmt->Bind(baton->parameters)) {
+        while ((stmt->status = sqlite3_step(stmt->_handle)) == SQLITE_ROW) {
+            Row* row = new Row();
+            GetRow(row, stmt->_handle);
+            baton->rows.push_back(row);
+        }
+
+        if (stmt->status != SQLITE_DONE) {
+            stmt->message = std::string(sqlite3_errmsg(stmt->db->_handle));
+        }
+    }
+
+    sqlite3_mutex_leave(mtx);
+}
+
+void Statement::Work_AfterAll(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<RowsBaton> baton(static_cast<RowsBaton*>(data));
+    Statement* stmt = baton->stmt;
+
+    Napi::Env env = stmt->Env();
+    Napi::HandleScope scope(env);
+
+    if (stmt->status != SQLITE_DONE) {
+        Error(baton.get());
+    }
+    else {
+        // Fire callbacks.
+        Napi::Function cb = baton->callback.Value();
+        if (IS_FUNCTION(cb)) {
+            if (baton->rows.size()) {
+                // Create the result array from the data we acquired.
+                Napi::Array result(Napi::Array::New(env, baton->rows.size()));
+                Rows::const_iterator it = baton->rows.begin();
+                Rows::const_iterator end = baton->rows.end();
+                for (int i = 0; it < end; ++it, i++) {
+                    std::unique_ptr<Row> row(*it);
+                    (result).Set(i, RowToJS(env,row.get()));
+                }
+
+                Napi::Value argv[] = { env.Null(), result };
+                TRY_CATCH_CALL(stmt->Value(), cb, 2, argv);
+            }
+            else {
+                // There were no result rows.
+                Napi::Value argv[] = {
+                    env.Null(),
+                    Napi::Array::New(env, 0)
+                };
+                TRY_CATCH_CALL(stmt->Value(), cb, 2, argv);
+            }
+        }
+    }
+
+    STATEMENT_END();
+}
+
+Napi::Value Statement::Each(const Napi::CallbackInfo& info) {
+    Napi::Env env = info.Env();
+    Statement* stmt = this;
+
+    int last = info.Length();
+
+    Napi::Function completed;
+    if (last >= 2 && info[last - 1].IsFunction() && info[last - 2].IsFunction()) {
+        completed = info[--last].As<Napi::Function>();
+    }
+
+    EachBaton* baton = stmt->Bind<EachBaton>(info, 0, last);
+    if (baton == NULL) {
+        Napi::Error::New(env, "Data type is not supported").ThrowAsJavaScriptException();
+        return env.Null();
+    }
+    else {
+        baton->completed.Reset(completed, 1);
+        stmt->Schedule(Work_BeginEach, baton);
+        return info.This();
+    }
+}
+
+void Statement::Work_BeginEach(Baton* baton) {
+    // Only create the Async object when we're actually going into
+    // the event loop. This prevents dangling events.
+    EachBaton* each_baton = static_cast<EachBaton*>(baton);
+    each_baton->async = new Async(each_baton->stmt, reinterpret_cast<uv_async_cb>(AsyncEach));
+    each_baton->async->item_cb.Reset(each_baton->callback.Value(), 1);
+    each_baton->async->completed_cb.Reset(each_baton->completed.Value(), 1);
+
+    STATEMENT_BEGIN(Each);
+}
+
+void Statement::Work_Each(napi_env e, void* data) {
+    STATEMENT_INIT(EachBaton);
+
+    Async* async = baton->async;
+
+    STATEMENT_MUTEX(mtx);
+
+    int retrieved = 0;
+
+    // Make sure that we also reset when there are no parameters.
+    if (!baton->parameters.size()) {
+        sqlite3_reset(stmt->_handle);
+    }
+
+    if (stmt->Bind(baton->parameters)) {
+        while (true) {
+            sqlite3_mutex_enter(mtx);
+            stmt->status = sqlite3_step(stmt->_handle);
+            if (stmt->status == SQLITE_ROW) {
+                sqlite3_mutex_leave(mtx);
+                Row* row = new Row();
+                GetRow(row, stmt->_handle);
+                NODE_SQLITE3_MUTEX_LOCK(&async->mutex)
+                async->data.push_back(row);
+                retrieved++;
+                NODE_SQLITE3_MUTEX_UNLOCK(&async->mutex)
+
+                uv_async_send(&async->watcher);
+            }
+            else {
+                if (stmt->status != SQLITE_DONE) {
+                    stmt->message = std::string(sqlite3_errmsg(stmt->db->_handle));
+                }
+                sqlite3_mutex_leave(mtx);
+                break;
+            }
+        }
+    }
+
+    async->completed = true;
+    uv_async_send(&async->watcher);
+}
+
+void Statement::CloseCallback(uv_handle_t* handle) {
+    assert(handle != NULL);
+    assert(handle->data != NULL);
+    Async* async = static_cast<Async*>(handle->data);
+    delete async;
+}
+
+void Statement::AsyncEach(uv_async_t* handle) {
+    Async* async = static_cast<Async*>(handle->data);
+
+    Napi::Env env = async->stmt->Env();
+    Napi::HandleScope scope(env);
+
+    while (true) {
+        // Get the contents out of the data cache for us to process in the JS callback.
+        Rows rows;
+        NODE_SQLITE3_MUTEX_LOCK(&async->mutex)
+        rows.swap(async->data);
+        NODE_SQLITE3_MUTEX_UNLOCK(&async->mutex)
+
+        if (rows.empty()) {
+            break;
+        }
+
+        Napi::Function cb = async->item_cb.Value();
+        if (IS_FUNCTION(cb)) {
+            Napi::Value argv[2];
+            argv[0] = env.Null();
+
+            Rows::const_iterator it = rows.begin();
+            Rows::const_iterator end = rows.end();
+            for (int i = 0; it < end; ++it, i++) {
+                std::unique_ptr<Row> row(*it);
+                argv[1] = RowToJS(env,row.get());
+                async->retrieved++;
+                TRY_CATCH_CALL(async->stmt->Value(), cb, 2, argv);
+            }
+        }
+    }
+
+    Napi::Function cb = async->completed_cb.Value();
+    if (async->completed) {
+        if (!cb.IsEmpty() &&
+                cb.IsFunction()) {
+            Napi::Value argv[] = {
+                env.Null(),
+                Napi::Number::New(env, async->retrieved)
+            };
+            TRY_CATCH_CALL(async->stmt->Value(), cb, 2, argv);
+        }
+        uv_close(reinterpret_cast<uv_handle_t*>(handle), CloseCallback);
+    }
+}
+
+void Statement::Work_AfterEach(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<EachBaton> baton(static_cast<EachBaton*>(data));
+    Statement* stmt = baton->stmt;
+
+    Napi::Env env = stmt->Env();
+    Napi::HandleScope scope(env);
+
+    if (stmt->status != SQLITE_DONE) {
+        Error(baton.get());
+    }
+
+    STATEMENT_END();
+}
+
+Napi::Value Statement::Reset(const Napi::CallbackInfo& info) {
+    Napi::Env env = info.Env();
+    Statement* stmt = this;
+
+    OPTIONAL_ARGUMENT_FUNCTION(0, callback);
+
+    Baton* baton = new Baton(stmt, callback);
+    stmt->Schedule(Work_BeginReset, baton);
+
+    return info.This();
+}
+
+void Statement::Work_BeginReset(Baton* baton) {
+    STATEMENT_BEGIN(Reset);
+}
+
+void Statement::Work_Reset(napi_env e, void* data) {
+    STATEMENT_INIT(Baton);
+
+    sqlite3_reset(stmt->_handle);
+    stmt->status = SQLITE_OK;
+}
+
+void Statement::Work_AfterReset(napi_env e, napi_status status, void* data) {
+    std::unique_ptr<Baton> baton(static_cast<Baton*>(data));
+    Statement* stmt = baton->stmt;
+
+    Napi::Env env = stmt->Env();
+    Napi::HandleScope scope(env);
+
+    // Fire callbacks.
+    Napi::Function cb = baton->callback.Value();
+    if (IS_FUNCTION(cb)) {
+        Napi::Value argv[] = { env.Null() };
+        TRY_CATCH_CALL(stmt->Value(), cb, 1, argv);
+    }
+
+    STATEMENT_END();
+}
+
+Napi::Value Statement::RowToJS(Napi::Env env, Row* row) {
+    Napi::EscapableHandleScope scope(env);
+
+    Napi::Object result = Napi::Object::New(env);
+
+    Row::const_iterator it = row->begin();
+    Row::const_iterator end = row->end();
+    for (int i = 0; it < end; ++it, i++) {
+        Values::Field* field = *it;
+
+        Napi::Value value;
+
+        switch (field->type) {
+            case SQLITE_INTEGER: {
+                value = Napi::Number::New(env, ((Values::Integer*)field)->value);
+            } break;
+            case SQLITE_FLOAT: {
+                value = Napi::Number::New(env, ((Values::Float*)field)->value);
+            } break;
+            case SQLITE_TEXT: {
+                value = Napi::String::New(env, ((Values::Text*)field)->value.c_str(), ((Values::Text*)field)->value.size());
+            } break;
+            case SQLITE_BLOB: {
+                value = Napi::Buffer<char>::Copy(env, ((Values::Blob*)field)->value, ((Values::Blob*)field)->length);
+            } break;
+            case SQLITE_NULL: {
+                value = env.Null();
+            } break;
+        }
+
+        (result).Set(Napi::String::New(env, field->name.c_str()), value);
+
+        DELETE_FIELD(field);
+    }
+
+    return scope.Escape(result);
+}
+
+void Statement::GetRow(Row* row, sqlite3_stmt* stmt) {
+    int cols = sqlite3_column_count(stmt);
+
+    for (int i = 0; i < cols; i++) {
+        int type = sqlite3_column_type(stmt, i);
+        const char* name = sqlite3_column_name(stmt, i);
+        if (name == NULL) {
+            assert(false);
+        }
+
+        switch (type) {
+            case SQLITE_INTEGER: {
+                row->push_back(new Values::Integer(name, sqlite3_column_int64(stmt, i)));
+            }   break;
+            case SQLITE_FLOAT: {
+                row->push_back(new Values::Float(name, sqlite3_column_double(stmt, i)));
+            }   break;
+            case SQLITE_TEXT: {
+                const char* text = (const char*)sqlite3_column_text(stmt, i);
+                int length = sqlite3_column_bytes(stmt, i);
+                row->push_back(new Values::Text(name, length, text));
+            } break;
+            case SQLITE_BLOB: {
+                const void* blob = sqlite3_column_blob(stmt, i);
+                int length = sqlite3_column_bytes(stmt, i);
+                row->push_back(new Values::Blob(name, length, blob));
+            }   break;
+            case SQLITE_NULL: {
+                row->push_back(new Values::Null(name));
+            }   break;
+            default:
+                assert(false);
+        }
+    }
+}
+
+Napi::Value Statement::Finalize_(const Napi::CallbackInfo& info) {
+    Napi::Env env = info.Env();
+    Statement* stmt = this;
+    OPTIONAL_ARGUMENT_FUNCTION(0, callback);
+
+    Baton* baton = new Baton(stmt, callback);
+    stmt->Schedule(Finalize_, baton);
+
+    return stmt->db->Value();
+}
+
+void Statement::Finalize_(Baton* b) {
+    std::unique_ptr<Baton> baton(b);
+    Napi::Env env = baton->stmt->Env();
+    Napi::HandleScope scope(env);
+
+    baton->stmt->Finalize_();
+
+    // Fire callback in case there was one.
+    Napi::Function cb = baton->callback.Value();
+    if (IS_FUNCTION(cb)) {
+        TRY_CATCH_CALL(baton->stmt->Value(), cb, 0, NULL);
+    }
+}
+
+void Statement::Finalize_() {
+    assert(!finalized);
+    finalized = true;
+    CleanQueue();
+    // Finalize returns the status code of the last operation. We already fired
+    // error events in case those failed.
+    sqlite3_finalize(_handle);
+    _handle = NULL;
+    db->Unref();
+}
+
+void Statement::CleanQueue() {
+    Napi::Env env = this->Env();
+    Napi::HandleScope scope(env);
+
+    if (prepared && !queue.empty()) {
+        // This statement has already been prepared and is now finalized.
+        // Fire error for all remaining items in the queue.
+        EXCEPTION(Napi::String::New(env, "Statement is already finalized"), SQLITE_MISUSE, exception);
+        Napi::Value argv[] = { exception };
+        bool called = false;
+
+        // Clear out the queue so that this object can get GC'ed.
+        while (!queue.empty()) {
+            std::unique_ptr<Call> call(queue.front());
+            queue.pop();
+
+            std::unique_ptr<Baton> baton(call->baton);
+            Napi::Function cb = baton->callback.Value();
+
+            if (prepared && !cb.IsEmpty() &&
+                cb.IsFunction()) {
+                TRY_CATCH_CALL(Value(), cb, 1, argv);
+                called = true;
+            }
+        }
+
+        // When we couldn't call a callback function, emit an error on the
+        // Statement object.
+        if (!called) {
+            Napi::Value info[] = { Napi::String::New(env, "error"), exception };
+            EMIT_EVENT(Value(), 2, info);
+        }
+    }
+    else while (!queue.empty()) {
+        // Just delete all items in the queue; we already fired an event when
+        // preparing the statement failed.
+        std::unique_ptr<Call> call(queue.front());
+        queue.pop();
+        // We don't call the actual callback, so we have to make sure that
+        // the baton gets destroyed.
+        delete call->baton;
+    }
+}
diff --git a/node_modules/sqlite3/src/statement.h b/node_modules/sqlite3/src/statement.h
new file mode 100644
index 0000000..dec0015
--- /dev/null
+++ b/node_modules/sqlite3/src/statement.h
@@ -0,0 +1,249 @@
+#ifndef NODE_SQLITE3_SRC_STATEMENT_H
+#define NODE_SQLITE3_SRC_STATEMENT_H
+
+#include <cstdlib>
+#include <cstring>
+#include <string>
+#include <queue>
+#include <vector>
+
+#include <sqlite3.h>
+#include <napi.h>
+#include <uv.h>
+
+#include "database.h"
+#include "threading.h"
+
+using namespace Napi;
+
+namespace node_sqlite3 {
+
+namespace Values {
+    struct Field {
+        inline Field(unsigned short _index, unsigned short _type = SQLITE_NULL) :
+            type(_type), index(_index) {}
+        inline Field(const char* _name, unsigned short _type = SQLITE_NULL) :
+            type(_type), index(0), name(_name) {}
+
+        unsigned short type;
+        unsigned short index;
+        std::string name;
+    };
+
+    struct Integer : Field {
+        template <class T> inline Integer(T _name, int64_t val) :
+            Field(_name, SQLITE_INTEGER), value(val) {}
+        int64_t value;
+    };
+
+    struct Float : Field {
+        template <class T> inline Float(T _name, double val) :
+            Field(_name, SQLITE_FLOAT), value(val) {}
+        double value;
+    };
+
+    struct Text : Field {
+        template <class T> inline Text(T _name, size_t len, const char* val) :
+            Field(_name, SQLITE_TEXT), value(val, len) {}
+        std::string value;
+    };
+
+    struct Blob : Field {
+        template <class T> inline Blob(T _name, size_t len, const void* val) :
+                Field(_name, SQLITE_BLOB), length(len) {
+            value = (char*)malloc(len);
+            memcpy(value, val, len);
+        }
+        inline ~Blob() {
+            free(value);
+        }
+        int length;
+        char* value;
+    };
+
+    typedef Field Null;
+}
+
+typedef std::vector<Values::Field*> Row;
+typedef std::vector<Row*> Rows;
+typedef Row Parameters;
+
+
+
+class Statement : public Napi::ObjectWrap<Statement> {
+public:
+    static Napi::Object Init(Napi::Env env, Napi::Object exports);
+    static Napi::Value New(const Napi::CallbackInfo& info);
+
+    struct Baton {
+        napi_async_work request = NULL;
+        Statement* stmt;
+        Napi::FunctionReference callback;
+        Parameters parameters;
+
+        Baton(Statement* stmt_, Napi::Function cb_) : stmt(stmt_) {
+            stmt->Ref();
+            callback.Reset(cb_, 1);
+        }
+        virtual ~Baton() {
+            for (size_t i = 0; i < parameters.size(); i++) {
+                Values::Field* field = parameters[i];
+                DELETE_FIELD(field);
+            }
+            if (request) napi_delete_async_work(stmt->Env(), request);
+            stmt->Unref();
+            callback.Reset();
+        }
+    };
+
+    struct RowBaton : Baton {
+        RowBaton(Statement* stmt_, Napi::Function cb_) :
+            Baton(stmt_, cb_) {}
+        Row row;
+    };
+
+    struct RunBaton : Baton {
+        RunBaton(Statement* stmt_, Napi::Function cb_) :
+            Baton(stmt_, cb_), inserted_id(0), changes(0) {}
+        sqlite3_int64 inserted_id;
+        int changes;
+    };
+
+    struct RowsBaton : Baton {
+        RowsBaton(Statement* stmt_, Napi::Function cb_) :
+            Baton(stmt_, cb_) {}
+        Rows rows;
+    };
+
+    struct Async;
+
+    struct EachBaton : Baton {
+        Napi::FunctionReference completed;
+        Async* async; // Isn't deleted when the baton is deleted.
+
+        EachBaton(Statement* stmt_, Napi::Function cb_) :
+            Baton(stmt_, cb_) {}
+        virtual ~EachBaton() {
+            completed.Reset();
+        }
+    };
+
+    struct PrepareBaton : Database::Baton {
+        Statement* stmt;
+        std::string sql;
+        PrepareBaton(Database* db_, Napi::Function cb_, Statement* stmt_) :
+            Baton(db_, cb_), stmt(stmt_) {
+            stmt->Ref();
+        }
+        virtual ~PrepareBaton() {
+            stmt->Unref();
+            if (!db->IsOpen() && db->IsLocked()) {
+                // The database handle was closed before the statement could be
+                // prepared.
+                stmt->Finalize_();
+            }
+        }
+    };
+
+    typedef void (*Work_Callback)(Baton* baton);
+
+    struct Call {
+        Call(Work_Callback cb_, Baton* baton_) : callback(cb_), baton(baton_) {};
+        Work_Callback callback;
+        Baton* baton;
+    };
+
+    struct Async {
+        uv_async_t watcher;
+        Statement* stmt;
+        Rows data;
+        NODE_SQLITE3_MUTEX_t;
+        bool completed;
+        int retrieved;
+
+        // Store the callbacks here because we don't have
+        // access to the baton in the async callback.
+        Napi::FunctionReference item_cb;
+        Napi::FunctionReference completed_cb;
+
+        Async(Statement* st, uv_async_cb async_cb) :
+                stmt(st), completed(false), retrieved(0) {
+            watcher.data = this;
+            NODE_SQLITE3_MUTEX_INIT
+            stmt->Ref();
+            uv_loop_t *loop;
+            napi_get_uv_event_loop(stmt->Env(), &loop);
+            uv_async_init(loop, &watcher, async_cb);
+        }
+
+        ~Async() {
+            stmt->Unref();
+            item_cb.Reset();
+            completed_cb.Reset();
+            NODE_SQLITE3_MUTEX_DESTROY
+        }
+    };
+
+    void init(Database* db_) {
+        db = db_;
+        _handle = NULL;
+        status = SQLITE_OK;
+        prepared = false;
+        locked = true;
+        finalized = false;
+        db->Ref();
+    }
+
+    Statement(const Napi::CallbackInfo& info);
+
+    ~Statement() {
+        if (!finalized) Finalize_();
+    }
+
+    WORK_DEFINITION(Bind);
+    WORK_DEFINITION(Get);
+    WORK_DEFINITION(Run);
+    WORK_DEFINITION(All);
+    WORK_DEFINITION(Each);
+    WORK_DEFINITION(Reset);
+
+    Napi::Value Finalize_(const Napi::CallbackInfo& info);
+
+protected:
+    static void Work_BeginPrepare(Database::Baton* baton);
+    static void Work_Prepare(napi_env env, void* data);
+    static void Work_AfterPrepare(napi_env env, napi_status status, void* data);
+
+    static void AsyncEach(uv_async_t* handle);
+    static void CloseCallback(uv_handle_t* handle);
+
+    static void Finalize_(Baton* baton);
+    void Finalize_();
+
+    template <class T> inline Values::Field* BindParameter(const Napi::Value source, T pos);
+    template <class T> T* Bind(const Napi::CallbackInfo& info, int start = 0, int end = -1);
+    bool Bind(const Parameters &parameters);
+
+    static void GetRow(Row* row, sqlite3_stmt* stmt);
+    static Napi::Value RowToJS(Napi::Env env, Row* row);
+    void Schedule(Work_Callback callback, Baton* baton);
+    void Process();
+    void CleanQueue();
+    template <class T> static void Error(T* baton);
+
+protected:
+    Database* db;
+
+    sqlite3_stmt* _handle;
+    int status;
+    std::string message;
+
+    bool prepared;
+    bool locked;
+    bool finalized;
+    std::queue<Call*> queue;
+};
+
+}
+
+#endif
diff --git a/node_modules/sqlite3/src/threading.h b/node_modules/sqlite3/src/threading.h
new file mode 100644
index 0000000..7c7139b
--- /dev/null
+++ b/node_modules/sqlite3/src/threading.h
@@ -0,0 +1,10 @@
+#ifndef NODE_SQLITE3_SRC_THREADING_H
+#define NODE_SQLITE3_SRC_THREADING_H
+
+#define NODE_SQLITE3_MUTEX_t uv_mutex_t mutex;
+#define NODE_SQLITE3_MUTEX_INIT uv_mutex_init(&mutex);
+#define NODE_SQLITE3_MUTEX_LOCK(m) uv_mutex_lock(m);
+#define NODE_SQLITE3_MUTEX_UNLOCK(m) uv_mutex_unlock(m);
+#define NODE_SQLITE3_MUTEX_DESTROY uv_mutex_destroy(&mutex);
+
+#endif // NODE_SQLITE3_SRC_THREADING_H
diff --git a/node_modules/ssri/CHANGELOG.md b/node_modules/ssri/CHANGELOG.md
new file mode 100644
index 0000000..3fea458
--- /dev/null
+++ b/node_modules/ssri/CHANGELOG.md
@@ -0,0 +1,355 @@
+# Changelog
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+### [8.0.1](https://github.com/npm/ssri/compare/v8.0.0...v8.0.1) (2021-01-27)
+
+
+### Bug Fixes
+
+* simplify regex for strict mode, add tests ([76e2233](https://github.com/npm/ssri/commit/76e223317d971f19e4db8191865bdad5edee40d2))
+
+## [8.0.0](https://github.com/npm/ssri/compare/v7.1.0...v8.0.0) (2020-02-18)
+
+
+### ⚠ BREAKING CHANGES
+
+* SRI values with `../` in the algorithm name now throw
+as invalid (which they always probably should have!)
+* adds a new error that will be thrown.  Empty SRIs are
+no longer considered valid for checking, only when using integrityStream
+to calculate the SRI value.
+
+PR-URL: https://github.com/npm/ssri/pull/12
+Credit: @claudiahdz
+
+### Features
+
+* remove figgy-pudding ([0e78fd7](https://github.com/npm/ssri/commit/0e78fd7b754e2d098875eb4c57238709d96d7c27))
+
+
+### Bug Fixes
+
+* harden SRI parsing against ../ funny business ([4062735](https://github.com/npm/ssri/commit/4062735d1281941fd32ac4320b9f9965fcec278b))
+* IntegrityStream responds to mutating opts object mid-stream ([4a963e5](https://github.com/npm/ssri/commit/4a963e5982478c6b07f86848cdb72d142c765195))
+* throw null when sri is empty or bad ([a6811cb](https://github.com/npm/ssri/commit/a6811cba71e20ea1fdefa6e50c9ea3c67efc2500)), closes [#12](https://github.com/npm/ssri/issues/12)
+
+## [7.1.0](https://github.com/npm/ssri/compare/v7.0.1...v7.1.0) (2019-10-24)
+
+
+### Bug Fixes
+
+* Do not blow up if the opts object is mutated ([806e8c8](https://github.com/npm/ssri/commit/806e8c8))
+
+
+### Features
+
+* Add Integrity#merge method ([0572c1d](https://github.com/npm/ssri/commit/0572c1d)), closes [#4](https://github.com/npm/ssri/issues/4)
+
+### [7.0.1](https://github.com/npm/ssri/compare/v7.0.0...v7.0.1) (2019-09-30)
+
+## [7.0.0](https://github.com/npm/ssri/compare/v6.0.1...v7.0.0) (2019-09-18)
+
+
+### ⚠ BREAKING CHANGES
+
+* ssri no longer accepts a Promise option, and does not
+use, return, or rely on Bluebird promises.
+* drop support for Node.js v6.
+
+We knew this was coming, and the Stream changes are breaking anyway.
+May as well do this now.
+* **streams:** this replaces the Node.js stream with a Minipass
+stream.  See http://npm.im/minipass for documentation.
+
+### Bug Fixes
+
+* return super.write() return value ([55b055d](https://github.com/npm/ssri/commit/55b055d))
+
+
+* Use native promises only ([6d13165](https://github.com/npm/ssri/commit/6d13165))
+* update tap, standard, standard-version, travis ([2e54956](https://github.com/npm/ssri/commit/2e54956))
+* **streams:** replace transform streams with minipass ([363995e](https://github.com/npm/ssri/commit/363995e))
+
+<a name="6.0.1"></a>
+## [6.0.1](https://github.com/npm/ssri/compare/v6.0.0...v6.0.1) (2018-08-27)
+
+
+### Bug Fixes
+
+* **opts:** use figgy-pudding to specify consumed opts ([cf86553](https://github.com/npm/ssri/commit/cf86553))
+
+
+
+<a name="6.0.0"></a>
+# [6.0.0](https://github.com/npm/ssri/compare/v5.3.0...v6.0.0) (2018-04-09)
+
+
+### Bug Fixes
+
+* **docs:** minor typo ([b71ef17](https://github.com/npm/ssri/commit/b71ef17))
+
+
+### meta
+
+* drop support for node@4 ([d9bf359](https://github.com/npm/ssri/commit/d9bf359))
+
+
+### BREAKING CHANGES
+
+* node@4 is no longer supported
+
+
+
+<a name="5.3.0"></a>
+# [5.3.0](https://github.com/npm/ssri/compare/v5.2.4...v5.3.0) (2018-03-13)
+
+
+### Features
+
+* **checkData:** optionally throw when checkData fails ([bf26b84](https://github.com/npm/ssri/commit/bf26b84))
+
+
+
+<a name="5.2.4"></a>
+## [5.2.4](https://github.com/npm/ssri/compare/v5.2.3...v5.2.4) (2018-02-16)
+
+
+
+<a name="5.2.3"></a>
+## [5.2.3](https://github.com/npm/ssri/compare/v5.2.2...v5.2.3) (2018-02-16)
+
+
+### Bug Fixes
+
+* **hashes:** filter hash priority list by available hashes ([2fa30b8](https://github.com/npm/ssri/commit/2fa30b8))
+* **integrityStream:** dedupe algorithms to generate ([d56c654](https://github.com/npm/ssri/commit/d56c654))
+
+
+
+<a name="5.2.2"></a>
+## [5.2.2](https://github.com/npm/ssri/compare/v5.2.1...v5.2.2) (2018-02-14)
+
+
+### Bug Fixes
+
+* **security:** tweak strict SRI regex ([#10](https://github.com/npm/ssri/issues/10)) ([d0ebcdc](https://github.com/npm/ssri/commit/d0ebcdc))
+
+
+
+<a name="5.2.1"></a>
+## [5.2.1](https://github.com/npm/ssri/compare/v5.2.0...v5.2.1) (2018-02-06)
+
+
+
+<a name="5.2.0"></a>
+# [5.2.0](https://github.com/npm/ssri/compare/v5.1.0...v5.2.0) (2018-02-06)
+
+
+### Features
+
+* **match:** add integrity.match() ([3c49cc4](https://github.com/npm/ssri/commit/3c49cc4))
+
+
+
+<a name="5.1.0"></a>
+# [5.1.0](https://github.com/npm/ssri/compare/v5.0.0...v5.1.0) (2018-01-18)
+
+
+### Bug Fixes
+
+* **checkStream:** integrityStream now takes opts.integrity algos into account ([d262910](https://github.com/npm/ssri/commit/d262910))
+
+
+### Features
+
+* **sha3:** do some guesswork about upcoming sha3 ([7fdd9df](https://github.com/npm/ssri/commit/7fdd9df))
+
+
+
+<a name="5.0.0"></a>
+# [5.0.0](https://github.com/npm/ssri/compare/v4.1.6...v5.0.0) (2017-10-23)
+
+
+### Features
+
+* **license:** relicense to ISC (#9) ([c82983a](https://github.com/npm/ssri/commit/c82983a))
+
+
+### BREAKING CHANGES
+
+* **license:** the license has been changed from CC0-1.0 to ISC.
+
+
+
+<a name="4.1.6"></a>
+## [4.1.6](https://github.com/npm/ssri/compare/v4.1.5...v4.1.6) (2017-06-07)
+
+
+### Bug Fixes
+
+* **checkStream:** make sure to pass all opts through ([0b1bcbe](https://github.com/npm/ssri/commit/0b1bcbe))
+
+
+
+<a name="4.1.5"></a>
+## [4.1.5](https://github.com/npm/ssri/compare/v4.1.4...v4.1.5) (2017-06-05)
+
+
+### Bug Fixes
+
+* **integrityStream:** stop crashing if opts.algorithms and opts.integrity have an algo mismatch ([fb1293e](https://github.com/npm/ssri/commit/fb1293e))
+
+
+
+<a name="4.1.4"></a>
+## [4.1.4](https://github.com/npm/ssri/compare/v4.1.3...v4.1.4) (2017-05-31)
+
+
+### Bug Fixes
+
+* **node:** older versions of node[@4](https://github.com/4) do not support base64buffer string parsing ([513df4e](https://github.com/npm/ssri/commit/513df4e))
+
+
+
+<a name="4.1.3"></a>
+## [4.1.3](https://github.com/npm/ssri/compare/v4.1.2...v4.1.3) (2017-05-24)
+
+
+### Bug Fixes
+
+* **check:** handle various bad hash corner cases better ([c2c262b](https://github.com/npm/ssri/commit/c2c262b))
+
+
+
+<a name="4.1.2"></a>
+## [4.1.2](https://github.com/npm/ssri/compare/v4.1.1...v4.1.2) (2017-04-18)
+
+
+### Bug Fixes
+
+* **stream:** _flush can be called multiple times. use on("end") ([b1c4805](https://github.com/npm/ssri/commit/b1c4805))
+
+
+
+<a name="4.1.1"></a>
+## [4.1.1](https://github.com/npm/ssri/compare/v4.1.0...v4.1.1) (2017-04-12)
+
+
+### Bug Fixes
+
+* **pickAlgorithm:** error if pickAlgorithm() is used in an empty Integrity ([fab470e](https://github.com/npm/ssri/commit/fab470e))
+
+
+
+<a name="4.1.0"></a>
+# [4.1.0](https://github.com/npm/ssri/compare/v4.0.0...v4.1.0) (2017-04-07)
+
+
+### Features
+
+* adding ssri.create for a crypto style interface (#2) ([96f52ad](https://github.com/npm/ssri/commit/96f52ad))
+
+
+
+<a name="4.0.0"></a>
+# [4.0.0](https://github.com/npm/ssri/compare/v3.0.2...v4.0.0) (2017-04-03)
+
+
+### Bug Fixes
+
+* **integrity:** should have changed the error code before. oops ([8381afa](https://github.com/npm/ssri/commit/8381afa))
+
+
+### BREAKING CHANGES
+
+* **integrity:** EBADCHECKSUM -> EINTEGRITY for verification errors
+
+
+
+<a name="3.0.2"></a>
+## [3.0.2](https://github.com/npm/ssri/compare/v3.0.1...v3.0.2) (2017-04-03)
+
+
+
+<a name="3.0.1"></a>
+## [3.0.1](https://github.com/npm/ssri/compare/v3.0.0...v3.0.1) (2017-04-03)
+
+
+### Bug Fixes
+
+* **package.json:** really should have these in the keywords because search ([a6ac6d0](https://github.com/npm/ssri/commit/a6ac6d0))
+
+
+
+<a name="3.0.0"></a>
+# [3.0.0](https://github.com/npm/ssri/compare/v2.0.0...v3.0.0) (2017-04-03)
+
+
+### Bug Fixes
+
+* **hashes:** IntegrityMetadata -> Hash ([d04aa1f](https://github.com/npm/ssri/commit/d04aa1f))
+
+
+### Features
+
+* **check:** return IntegrityMetadata on check success ([2301e74](https://github.com/npm/ssri/commit/2301e74))
+* **fromHex:** ssri.fromHex to make it easier to generate them from hex valus ([049b89e](https://github.com/npm/ssri/commit/049b89e))
+* **hex:** utility function for getting hex version of digest ([a9f021c](https://github.com/npm/ssri/commit/a9f021c))
+* **hexDigest:** added hexDigest method to Integrity objects too ([85208ba](https://github.com/npm/ssri/commit/85208ba))
+* **integrity:** add .isIntegrity and .isIntegrityMetadata ([1b29e6f](https://github.com/npm/ssri/commit/1b29e6f))
+* **integrityStream:** new stream that can both generate and check streamed data ([fd23e1b](https://github.com/npm/ssri/commit/fd23e1b))
+* **parse:** allow parsing straight into a single IntegrityMetadata object ([c8ddf48](https://github.com/npm/ssri/commit/c8ddf48))
+* **pickAlgorithm:** Intergrity#pickAlgorithm() added ([b97a796](https://github.com/npm/ssri/commit/b97a796))
+* **size:** calculate and update stream sizes ([02ed1ad](https://github.com/npm/ssri/commit/02ed1ad))
+
+
+### BREAKING CHANGES
+
+* **hashes:** `.isIntegrityMetadata` is now `.isHash`. Also, any references to `IntegrityMetadata` now refer to `Hash`.
+* **integrityStream:** createCheckerStream has been removed and replaced with a general-purpose integrityStream.
+
+To convert existing createCheckerStream code, move the `sri` argument into `opts.integrity` in integrityStream. All other options should be the same.
+* **check:** `checkData`, `checkStream`, and `createCheckerStream` now yield a whole IntegrityMetadata instance representing the first successful hash match.
+
+
+
+<a name="2.0.0"></a>
+# [2.0.0](https://github.com/npm/ssri/compare/v1.0.0...v2.0.0) (2017-03-24)
+
+
+### Bug Fixes
+
+* **strict-mode:** make regexes more rigid ([122a32c](https://github.com/npm/ssri/commit/122a32c))
+
+
+### Features
+
+* **api:** added serialize alias for unparse ([999b421](https://github.com/npm/ssri/commit/999b421))
+* **concat:** add Integrity#concat() ([cae12c7](https://github.com/npm/ssri/commit/cae12c7))
+* **pickAlgo:** pick the strongest algorithm provided, by default ([58c18f7](https://github.com/npm/ssri/commit/58c18f7))
+* **strict-mode:** strict SRI support ([3f0b64c](https://github.com/npm/ssri/commit/3f0b64c))
+* **stringify:** replaced unparse/serialize with stringify ([4acad30](https://github.com/npm/ssri/commit/4acad30))
+* **verification:** add opts.pickAlgorithm ([f72e658](https://github.com/npm/ssri/commit/f72e658))
+
+
+### BREAKING CHANGES
+
+* **pickAlgo:** ssri will prioritize specific hashes now
+* **stringify:** serialize and unparse have been removed. Use ssri.stringify instead.
+* **strict-mode:** functions that accepted an optional `sep` argument now expect `opts.sep`.
+
+
+
+<a name="1.0.0"></a>
+# 1.0.0 (2017-03-23)
+
+
+### Features
+
+* **api:** implemented initial api ([4fbb16b](https://github.com/npm/ssri/commit/4fbb16b))
+
+
+### BREAKING CHANGES
+
+* **api:** Initial API established.
diff --git a/node_modules/ssri/LICENSE.md b/node_modules/ssri/LICENSE.md
new file mode 100644
index 0000000..8d28acf
--- /dev/null
+++ b/node_modules/ssri/LICENSE.md
@@ -0,0 +1,16 @@
+ISC License
+
+Copyright (c) npm, Inc.
+
+Permission to use, copy, modify, and/or distribute this software for
+any purpose with or without fee is hereby granted, provided that the
+above copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE COPYRIGHT HOLDER DISCLAIMS
+ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
+USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/ssri/README.md b/node_modules/ssri/README.md
new file mode 100644
index 0000000..0cd41be
--- /dev/null
+++ b/node_modules/ssri/README.md
@@ -0,0 +1,528 @@
+# ssri [![npm version](https://img.shields.io/npm/v/ssri.svg)](https://npm.im/ssri) [![license](https://img.shields.io/npm/l/ssri.svg)](https://npm.im/ssri) [![Travis](https://img.shields.io/travis/npm/ssri.svg)](https://travis-ci.org/npm/ssri) [![AppVeyor](https://ci.appveyor.com/api/projects/status/github/npm/ssri?svg=true)](https://ci.appveyor.com/project/npm/ssri) [![Coverage Status](https://coveralls.io/repos/github/npm/ssri/badge.svg?branch=latest)](https://coveralls.io/github/npm/ssri?branch=latest)
+
+[`ssri`](https://github.com/npm/ssri), short for Standard Subresource
+Integrity, is a Node.js utility for parsing, manipulating, serializing,
+generating, and verifying [Subresource
+Integrity](https://w3c.github.io/webappsec/specs/subresourceintegrity/) hashes.
+
+## Install
+
+`$ npm install --save ssri`
+
+## Table of Contents
+
+* [Example](#example)
+* [Features](#features)
+* [Contributing](#contributing)
+* [API](#api)
+  * Parsing & Serializing
+    * [`parse`](#parse)
+    * [`stringify`](#stringify)
+    * [`Integrity#concat`](#integrity-concat)
+    * [`Integrity#merge`](#integrity-merge)
+    * [`Integrity#toString`](#integrity-to-string)
+    * [`Integrity#toJSON`](#integrity-to-json)
+    * [`Integrity#match`](#integrity-match)
+    * [`Integrity#pickAlgorithm`](#integrity-pick-algorithm)
+    * [`Integrity#hexDigest`](#integrity-hex-digest)
+  * Integrity Generation
+    * [`fromHex`](#from-hex)
+    * [`fromData`](#from-data)
+    * [`fromStream`](#from-stream)
+    * [`create`](#create)
+  * Integrity Verification
+    * [`checkData`](#check-data)
+    * [`checkStream`](#check-stream)
+    * [`integrityStream`](#integrity-stream)
+
+### Example
+
+```javascript
+const ssri = require('ssri')
+
+const integrity = 'sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==?foo'
+
+// Parsing and serializing
+const parsed = ssri.parse(integrity)
+ssri.stringify(parsed) // === integrity (works on non-Integrity objects)
+parsed.toString() // === integrity
+
+// Async stream functions
+ssri.checkStream(fs.createReadStream('./my-file'), integrity).then(...)
+ssri.fromStream(fs.createReadStream('./my-file')).then(sri => {
+  sri.toString() === integrity
+})
+fs.createReadStream('./my-file').pipe(ssri.createCheckerStream(sri))
+
+// Sync data functions
+ssri.fromData(fs.readFileSync('./my-file')) // === parsed
+ssri.checkData(fs.readFileSync('./my-file'), integrity) // => 'sha512'
+```
+
+### Features
+
+* Parses and stringifies SRI strings.
+* Generates SRI strings from raw data or Streams.
+* Strict standard compliance.
+* `?foo` metadata option support.
+* Multiple entries for the same algorithm.
+* Object-based integrity hash manipulation.
+* Small footprint: no dependencies, concise implementation.
+* Full test coverage.
+* Customizable algorithm picker.
+
+### Contributing
+
+The ssri team enthusiastically welcomes contributions and project participation!
+There's a bunch of things you can do if you want to contribute! The [Contributor
+Guide](CONTRIBUTING.md) has all the information you need for everything from
+reporting bugs to contributing entire new features. Please don't hesitate to
+jump in if you'd like to, or even ask us questions if something isn't clear.
+
+### API
+
+#### <a name="parse"></a> `> ssri.parse(sri, [opts]) -> Integrity`
+
+Parses `sri` into an `Integrity` data structure. `sri` can be an integrity
+string, an `Hash`-like with `digest` and `algorithm` fields and an optional
+`options` field, or an `Integrity`-like object. The resulting object will be an
+`Integrity` instance that has this shape:
+
+```javascript
+{
+  'sha1': [{algorithm: 'sha1', digest: 'deadbeef', options: []}],
+  'sha512': [
+    {algorithm: 'sha512', digest: 'c0ffee', options: []},
+    {algorithm: 'sha512', digest: 'bad1dea', options: ['foo']}
+  ],
+}
+```
+
+If `opts.single` is truthy, a single `Hash` object will be returned. That is, a
+single object that looks like `{algorithm, digest, options}`, as opposed to a
+larger object with multiple of these.
+
+If `opts.strict` is truthy, the resulting object will be filtered such that
+it strictly follows the Subresource Integrity spec, throwing away any entries
+with any invalid components. This also means a restricted set of algorithms
+will be used -- the spec limits them to `sha256`, `sha384`, and `sha512`.
+
+Strict mode is recommended if the integrity strings are intended for use in
+browsers, or in other situations where strict adherence to the spec is needed.
+
+##### Example
+
+```javascript
+ssri.parse('sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==?foo') // -> Integrity object
+```
+
+#### <a name="stringify"></a> `> ssri.stringify(sri, [opts]) -> String`
+
+This function is identical to [`Integrity#toString()`](#integrity-to-string),
+except it can be used on _any_ object that [`parse`](#parse) can handle -- that
+is, a string, an `Hash`-like, or an `Integrity`-like.
+
+The `opts.sep` option defines the string to use when joining multiple entries
+together. To be spec-compliant, this _must_ be whitespace. The default is a
+single space (`' '`).
+
+If `opts.strict` is true, the integrity string will be created using strict
+parsing rules. See [`ssri.parse`](#parse).
+
+##### Example
+
+```javascript
+// Useful for cleaning up input SRI strings:
+ssri.stringify('\n\rsha512-foo\n\t\tsha384-bar')
+// -> 'sha512-foo sha384-bar'
+
+// Hash-like: only a single entry.
+ssri.stringify({
+  algorithm: 'sha512',
+  digest:'9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==',
+  options: ['foo']
+})
+// ->
+// 'sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==?foo'
+
+// Integrity-like: full multi-entry syntax. Similar to output of `ssri.parse`
+ssri.stringify({
+  'sha512': [
+    {
+      algorithm: 'sha512',
+      digest:'9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==',
+      options: ['foo']
+    }
+  ]
+})
+// ->
+// 'sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==?foo'
+```
+
+#### <a name="integrity-concat"></a> `> Integrity#concat(otherIntegrity, [opts]) -> Integrity`
+
+Concatenates an `Integrity` object with another IntegrityLike, or an integrity
+string.
+
+This is functionally equivalent to concatenating the string format of both
+integrity arguments, and calling [`ssri.parse`](#ssri-parse) on the new string.
+
+If `opts.strict` is true, the new `Integrity` will be created using strict
+parsing rules. See [`ssri.parse`](#parse).
+
+##### Example
+
+```javascript
+// This will combine the integrity checks for two different versions of
+// your index.js file so you can use a single integrity string and serve
+// either of these to clients, from a single `<script>` tag.
+const desktopIntegrity = ssri.fromData(fs.readFileSync('./index.desktop.js'))
+const mobileIntegrity = ssri.fromData(fs.readFileSync('./index.mobile.js'))
+
+// Note that browsers (and ssri) will succeed as long as ONE of the entries
+// for the *prioritized* algorithm succeeds. That is, in order for this fallback
+// to work, both desktop and mobile *must* use the same `algorithm` values.
+desktopIntegrity.concat(mobileIntegrity)
+```
+
+#### <a name="integrity-merge"></a> `> Integrity#merge(otherIntegrity, [opts])`
+
+Safely merges another IntegrityLike or integrity string into an `Integrity`
+object.
+
+If the other integrity value has any algorithms in common with the current
+object, then the hash digests must match, or an error is thrown.
+
+Any new hashes will be added to the current object's set.
+
+This is useful when an integrity value may be upgraded with a stronger
+algorithm, you wish to prevent accidentally supressing integrity errors by
+overwriting the expected integrity value.
+
+##### Example
+
+```javascript
+const data = fs.readFileSync('data.txt')
+
+// integrity.txt contains 'sha1-X1UT+IIv2+UUWvM7ZNjZcNz5XG4='
+// because we were young, and didn't realize sha1 would not last
+const expectedIntegrity = ssri.parse(fs.readFileSync('integrity.txt', 'utf8'))
+const match = ssri.checkData(data, expectedIntegrity, {
+  algorithms: ['sha512', 'sha1']
+})
+if (!match) {
+  throw new Error('data corrupted or something!')
+}
+
+// get a stronger algo!
+if (match && match.algorithm !== 'sha512') {
+  const updatedIntegrity = ssri.fromData(data, { algorithms: ['sha512'] })
+  expectedIntegrity.merge(updatedIntegrity)
+  fs.writeFileSync('integrity.txt', expectedIntegrity.toString())
+  // file now contains
+  // 'sha1-X1UT+IIv2+UUWvM7ZNjZcNz5XG4= sha512-yzd8ELD1piyANiWnmdnpCL5F52f10UfUdEkHywVZeqTt0ymgrxR63Qz0GB7TKPoeeZQmWCaz7T1+9vBnypkYWg=='
+}
+```
+
+#### <a name="integrity-to-string"></a> `> Integrity#toString([opts]) -> String`
+
+Returns the string representation of an `Integrity` object. All hash entries
+will be concatenated in the string by `opts.sep`, which defaults to `' '`.
+
+If you want to serialize an object that didn't come from an `ssri` function,
+use [`ssri.stringify()`](#stringify).
+
+If `opts.strict` is true, the integrity string will be created using strict
+parsing rules. See [`ssri.parse`](#parse).
+
+##### Example
+
+```javascript
+const integrity = 'sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==?foo'
+
+ssri.parse(integrity).toString() === integrity
+```
+
+#### <a name="integrity-to-json"></a> `> Integrity#toJSON() -> String`
+
+Returns the string representation of an `Integrity` object. All hash entries
+will be concatenated in the string by `' '`.
+
+This is a convenience method so you can pass an `Integrity` object directly to `JSON.stringify`.
+For more info check out [toJSON() behavior on mdn](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#toJSON%28%29_behavior).
+
+##### Example
+
+```javascript
+const integrity = '"sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==?foo"'
+
+JSON.stringify(ssri.parse(integrity)) === integrity
+```
+
+#### <a name="integrity-match"></a> `> Integrity#match(sri, [opts]) -> Hash | false`
+
+Returns the matching (truthy) hash if `Integrity` matches the argument passed as
+`sri`, which can be anything that [`parse`](#parse) will accept. `opts` will be
+passed through to `parse` and [`pickAlgorithm()`](#integrity-pick-algorithm).
+
+##### Example
+
+```javascript
+const integrity = 'sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A=='
+
+ssri.parse(integrity).match(integrity)
+// Hash {
+//   digest: '9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A=='
+//   algorithm: 'sha512'
+// }
+
+ssri.parse(integrity).match('sha1-deadbeef')
+// false
+```
+
+#### <a name="integrity-pick-algorithm"></a> `> Integrity#pickAlgorithm([opts]) -> String`
+
+Returns the "best" algorithm from those available in the integrity object.
+
+If `opts.pickAlgorithm` is provided, it will be passed two algorithms as
+arguments. ssri will prioritize whichever of the two algorithms is returned by
+this function. Note that the function may be called multiple times, and it
+**must** return one of the two algorithms provided. By default, ssri will make
+a best-effort to pick the strongest/most reliable of the given algorithms. It
+may intentionally deprioritize algorithms with known vulnerabilities.
+
+##### Example
+
+```javascript
+ssri.parse('sha1-WEakDigEST sha512-yzd8ELD1piyANiWnmdnpCL5F52f10UfUdEkHywVZeqTt0ymgrxR63Qz0GB7TKPoeeZQmWCaz7T1').pickAlgorithm() // sha512
+```
+
+#### <a name="integrity-hex-digest"></a> `> Integrity#hexDigest() -> String`
+
+`Integrity` is assumed to be either a single-hash `Integrity` instance, or a
+`Hash` instance. Returns its `digest`, converted to a hex representation of the
+base64 data.
+
+##### Example
+
+```javascript
+ssri.parse('sha1-deadbeef').hexDigest() // '75e69d6de79f'
+```
+
+#### <a name="from-hex"></a> `> ssri.fromHex(hexDigest, algorithm, [opts]) -> Integrity`
+
+Creates an `Integrity` object with a single entry, based on a hex-formatted
+hash. This is a utility function to help convert existing shasums to the
+Integrity format, and is roughly equivalent to something like:
+
+```javascript
+algorithm + '-' + Buffer.from(hexDigest, 'hex').toString('base64')
+```
+
+`opts.options` may optionally be passed in: it must be an array of option
+strings that will be added to all generated integrity hashes generated by
+`fromData`. This is a loosely-specified feature of SRIs, and currently has no
+specified semantics besides being `?`-separated. Use at your own risk, and
+probably avoid if your integrity strings are meant to be used with browsers.
+
+If `opts.strict` is true, the integrity object will be created using strict
+parsing rules. See [`ssri.parse`](#parse).
+
+If `opts.single` is true, a single `Hash` object will be returned.
+
+##### Example
+
+```javascript
+ssri.fromHex('75e69d6de79f', 'sha1').toString() // 'sha1-deadbeef'
+```
+
+#### <a name="from-data"></a> `> ssri.fromData(data, [opts]) -> Integrity`
+
+Creates an `Integrity` object from either string or `Buffer` data, calculating
+all the requested hashes and adding any specified options to the object.
+
+`opts.algorithms` determines which algorithms to generate hashes for. All
+results will be included in a single `Integrity` object. The default value for
+`opts.algorithms` is `['sha512']`. All algorithm strings must be hashes listed
+in `crypto.getHashes()` for the host Node.js platform.
+
+`opts.options` may optionally be passed in: it must be an array of option
+strings that will be added to all generated integrity hashes generated by
+`fromData`. This is a loosely-specified feature of SRIs, and currently has no
+specified semantics besides being `?`-separated. Use at your own risk, and
+probably avoid if your integrity strings are meant to be used with browsers.
+
+If `opts.strict` is true, the integrity object will be created using strict
+parsing rules. See [`ssri.parse`](#parse).
+
+##### Example
+
+```javascript
+const integrityObj = ssri.fromData('foobarbaz', {
+  algorithms: ['sha256', 'sha384', 'sha512']
+})
+integrity.toString('\n')
+// ->
+// sha256-l981iLWj8kurw4UbNy8Lpxqdzd7UOxS50Glhv8FwfZ0=
+// sha384-irnCxQ0CfQhYGlVAUdwTPC9bF3+YWLxlaDGM4xbYminxpbXEq+D+2GCEBTxcjES9
+// sha512-yzd8ELD1piyANiWnmdnpCL5F52f10UfUdEkHywVZeqTt0ymgrxR63Qz0GB7TKPoeeZQmWCaz7T1+9vBnypkYWg==
+```
+
+#### <a name="from-stream"></a> `> ssri.fromStream(stream, [opts]) -> Promise<Integrity>`
+
+Returns a Promise of an Integrity object calculated by reading data from
+a given `stream`.
+
+It accepts both `opts.algorithms` and `opts.options`, which are documented as
+part of [`ssri.fromData`](#from-data).
+
+Additionally, `opts.Promise` may be passed in to inject a Promise library of
+choice. By default, ssri will use Node's built-in Promises.
+
+If `opts.strict` is true, the integrity object will be created using strict
+parsing rules. See [`ssri.parse`](#parse).
+
+##### Example
+
+```javascript
+ssri.fromStream(fs.createReadStream('index.js'), {
+  algorithms: ['sha1', 'sha512']
+}).then(integrity => {
+  return ssri.checkStream(fs.createReadStream('index.js'), integrity)
+}) // succeeds
+```
+
+#### <a name="create"></a> `> ssri.create([opts]) -> <Hash>`
+
+Returns a Hash object with `update(<Buffer or string>[,enc])` and `digest()` methods.
+
+
+The Hash object provides the same methods as [crypto class Hash](https://nodejs.org/dist/latest-v6.x/docs/api/crypto.html#crypto_class_hash).
+`digest()` accepts no arguments and returns an Integrity object calculated by reading data from
+calls to update.
+
+It accepts both `opts.algorithms` and `opts.options`, which are documented as
+part of [`ssri.fromData`](#from-data).
+
+If `opts.strict` is true, the integrity object will be created using strict
+parsing rules. See [`ssri.parse`](#parse).
+
+##### Example
+
+```javascript
+const integrity = ssri.create().update('foobarbaz').digest()
+integrity.toString()
+// ->
+// sha512-yzd8ELD1piyANiWnmdnpCL5F52f10UfUdEkHywVZeqTt0ymgrxR63Qz0GB7TKPoeeZQmWCaz7T1+9vBnypkYWg==
+```
+
+#### <a name="check-data"></a> `> ssri.checkData(data, sri, [opts]) -> Hash|false`
+
+Verifies `data` integrity against an `sri` argument. `data` may be either a
+`String` or a `Buffer`, and `sri` can be any subresource integrity
+representation that [`ssri.parse`](#parse) can handle.
+
+If verification succeeds, `checkData` will return the name of the algorithm that
+was used for verification (a truthy value). Otherwise, it will return `false`.
+
+If `opts.pickAlgorithm` is provided, it will be used by
+[`Integrity#pickAlgorithm`](#integrity-pick-algorithm) when deciding which of
+the available digests to match against.
+
+If `opts.error` is true, and verification fails, `checkData` will throw either
+an `EBADSIZE` or an `EINTEGRITY` error, instead of just returning false.
+
+##### Example
+
+```javascript
+const data = fs.readFileSync('index.js')
+ssri.checkData(data, ssri.fromData(data)) // -> 'sha512'
+ssri.checkData(data, 'sha256-l981iLWj8kurw4UbNy8Lpxqdzd7UOxS50Glhv8FwfZ0')
+ssri.checkData(data, 'sha1-BaDDigEST') // -> false
+ssri.checkData(data, 'sha1-BaDDigEST', {error: true}) // -> Error! EINTEGRITY
+```
+
+#### <a name="check-stream"></a> `> ssri.checkStream(stream, sri, [opts]) -> Promise<Hash>`
+
+Verifies the contents of `stream` against an `sri` argument. `stream` will be
+consumed in its entirety by this process. `sri` can be any subresource integrity
+representation that [`ssri.parse`](#parse) can handle.
+
+`checkStream` will return a Promise that either resolves to the
+`Hash` that succeeded verification, or, if the verification fails
+or an error happens with `stream`, the Promise will be rejected.
+
+If the Promise is rejected because verification failed, the returned error will
+have `err.code` as `EINTEGRITY`.
+
+If `opts.size` is given, it will be matched against the stream size. An error
+with `err.code` `EBADSIZE` will be returned by a rejection if the expected size
+and actual size fail to match.
+
+If `opts.pickAlgorithm` is provided, it will be used by
+[`Integrity#pickAlgorithm`](#integrity-pick-algorithm) when deciding which of
+the available digests to match against.
+
+##### Example
+
+```javascript
+const integrity = ssri.fromData(fs.readFileSync('index.js'))
+
+ssri.checkStream(
+  fs.createReadStream('index.js'),
+  integrity
+)
+// ->
+// Promise<{
+//   algorithm: 'sha512',
+//   digest: 'sha512-yzd8ELD1piyANiWnmdnpCL5F52f10UfUdEkHywVZeqTt0ymgrxR63Qz0GB7TKPoeeZQmWCaz7T1'
+// }>
+
+ssri.checkStream(
+  fs.createReadStream('index.js'),
+  'sha256-l981iLWj8kurw4UbNy8Lpxqdzd7UOxS50Glhv8FwfZ0'
+) // -> Promise<Hash>
+
+ssri.checkStream(
+  fs.createReadStream('index.js'),
+  'sha1-BaDDigEST'
+) // -> Promise<Error<{code: 'EINTEGRITY'}>>
+```
+
+#### <a name="integrity-stream"></a> `> integrityStream([opts]) -> IntegrityStream`
+
+Returns a `Transform` stream that data can be piped through in order to generate
+and optionally check data integrity for piped data. When the stream completes
+successfully, it emits `size` and `integrity` events, containing the total
+number of bytes processed and a calculated `Integrity` instance based on stream
+data, respectively.
+
+If `opts.algorithms` is passed in, the listed algorithms will be calculated when
+generating the final `Integrity` instance. The default is `['sha512']`.
+
+If `opts.single` is passed in, a single `Hash` instance will be returned.
+
+If `opts.integrity` is passed in, it should be an `integrity` value understood
+by [`parse`](#parse) that the stream will check the data against. If
+verification succeeds, the integrity stream will emit a `verified` event whose
+value is a single `Hash` object that is the one that succeeded verification. If
+verification fails, the stream will error with an `EINTEGRITY` error code.
+
+If `opts.size` is given, it will be matched against the stream size. An error
+with `err.code` `EBADSIZE` will be emitted by the stream if the expected size
+and actual size fail to match.
+
+If `opts.pickAlgorithm` is provided, it will be passed two algorithms as
+arguments. ssri will prioritize whichever of the two algorithms is returned by
+this function. Note that the function may be called multiple times, and it
+**must** return one of the two algorithms provided. By default, ssri will make
+a best-effort to pick the strongest/most reliable of the given algorithms. It
+may intentionally deprioritize algorithms with known vulnerabilities.
+
+##### Example
+
+```javascript
+const integrity = ssri.fromData(fs.readFileSync('index.js'))
+fs.createReadStream('index.js')
+.pipe(ssri.integrityStream({integrity}))
+```
diff --git a/node_modules/ssri/index.js b/node_modules/ssri/index.js
new file mode 100644
index 0000000..2b30984
--- /dev/null
+++ b/node_modules/ssri/index.js
@@ -0,0 +1,470 @@
+'use strict'
+
+const crypto = require('crypto')
+const MiniPass = require('minipass')
+
+const SPEC_ALGORITHMS = ['sha256', 'sha384', 'sha512']
+
+// TODO: this should really be a hardcoded list of algorithms we support,
+// rather than [a-z0-9].
+const BASE64_REGEX = /^[a-z0-9+/]+(?:=?=?)$/i
+const SRI_REGEX = /^([a-z0-9]+)-([^?]+)([?\S*]*)$/
+const STRICT_SRI_REGEX = /^([a-z0-9]+)-([A-Za-z0-9+/=]{44,88})(\?[\x21-\x7E]*)?$/
+const VCHAR_REGEX = /^[\x21-\x7E]+$/
+
+const defaultOpts = {
+  algorithms: ['sha512'],
+  error: false,
+  options: [],
+  pickAlgorithm: getPrioritizedHash,
+  sep: ' ',
+  single: false,
+  strict: false
+}
+
+const ssriOpts = (opts = {}) => ({ ...defaultOpts, ...opts })
+
+const getOptString = options => !options || !options.length
+  ? ''
+  : `?${options.join('?')}`
+
+const _onEnd = Symbol('_onEnd')
+const _getOptions = Symbol('_getOptions')
+class IntegrityStream extends MiniPass {
+  constructor (opts) {
+    super()
+    this.size = 0
+    this.opts = opts
+
+    // may be overridden later, but set now for class consistency
+    this[_getOptions]()
+
+    // options used for calculating stream.  can't be changed.
+    const { algorithms = defaultOpts.algorithms } = opts
+    this.algorithms = Array.from(
+      new Set(algorithms.concat(this.algorithm ? [this.algorithm] : []))
+    )
+    this.hashes = this.algorithms.map(crypto.createHash)
+  }
+
+  [_getOptions] () {
+    const {
+      integrity,
+      size,
+      options
+    } = { ...defaultOpts, ...this.opts }
+
+    // For verification
+    this.sri = integrity ? parse(integrity, this.opts) : null
+    this.expectedSize = size
+    this.goodSri = this.sri ? !!Object.keys(this.sri).length : false
+    this.algorithm = this.goodSri ? this.sri.pickAlgorithm(this.opts) : null
+    this.digests = this.goodSri ? this.sri[this.algorithm] : null
+    this.optString = getOptString(options)
+  }
+
+  emit (ev, data) {
+    if (ev === 'end') this[_onEnd]()
+    return super.emit(ev, data)
+  }
+
+  write (data) {
+    this.size += data.length
+    this.hashes.forEach(h => h.update(data))
+    return super.write(data)
+  }
+
+  [_onEnd] () {
+    if (!this.goodSri) {
+      this[_getOptions]()
+    }
+    const newSri = parse(this.hashes.map((h, i) => {
+      return `${this.algorithms[i]}-${h.digest('base64')}${this.optString}`
+    }).join(' '), this.opts)
+    // Integrity verification mode
+    const match = this.goodSri && newSri.match(this.sri, this.opts)
+    if (typeof this.expectedSize === 'number' && this.size !== this.expectedSize) {
+      const err = new Error(`stream size mismatch when checking ${this.sri}.\n  Wanted: ${this.expectedSize}\n  Found: ${this.size}`)
+      err.code = 'EBADSIZE'
+      err.found = this.size
+      err.expected = this.expectedSize
+      err.sri = this.sri
+      this.emit('error', err)
+    } else if (this.sri && !match) {
+      const err = new Error(`${this.sri} integrity checksum failed when using ${this.algorithm}: wanted ${this.digests} but got ${newSri}. (${this.size} bytes)`)
+      err.code = 'EINTEGRITY'
+      err.found = newSri
+      err.expected = this.digests
+      err.algorithm = this.algorithm
+      err.sri = this.sri
+      this.emit('error', err)
+    } else {
+      this.emit('size', this.size)
+      this.emit('integrity', newSri)
+      match && this.emit('verified', match)
+    }
+  }
+}
+
+class Hash {
+  get isHash () { return true }
+  constructor (hash, opts) {
+    opts = ssriOpts(opts)
+    const strict = !!opts.strict
+    this.source = hash.trim()
+
+    // set default values so that we make V8 happy to
+    // always see a familiar object template.
+    this.digest = ''
+    this.algorithm = ''
+    this.options = []
+
+    // 3.1. Integrity metadata (called "Hash" by ssri)
+    // https://w3c.github.io/webappsec-subresource-integrity/#integrity-metadata-description
+    const match = this.source.match(
+      strict
+        ? STRICT_SRI_REGEX
+        : SRI_REGEX
+    )
+    if (!match) { return }
+    if (strict && !SPEC_ALGORITHMS.some(a => a === match[1])) { return }
+    this.algorithm = match[1]
+    this.digest = match[2]
+
+    const rawOpts = match[3]
+    if (rawOpts) {
+      this.options = rawOpts.slice(1).split('?')
+    }
+  }
+
+  hexDigest () {
+    return this.digest && Buffer.from(this.digest, 'base64').toString('hex')
+  }
+
+  toJSON () {
+    return this.toString()
+  }
+
+  toString (opts) {
+    opts = ssriOpts(opts)
+    if (opts.strict) {
+      // Strict mode enforces the standard as close to the foot of the
+      // letter as it can.
+      if (!(
+        // The spec has very restricted productions for algorithms.
+        // https://www.w3.org/TR/CSP2/#source-list-syntax
+        SPEC_ALGORITHMS.some(x => x === this.algorithm) &&
+        // Usually, if someone insists on using a "different" base64, we
+        // leave it as-is, since there's multiple standards, and the
+        // specified is not a URL-safe variant.
+        // https://www.w3.org/TR/CSP2/#base64_value
+        this.digest.match(BASE64_REGEX) &&
+        // Option syntax is strictly visual chars.
+        // https://w3c.github.io/webappsec-subresource-integrity/#grammardef-option-expression
+        // https://tools.ietf.org/html/rfc5234#appendix-B.1
+        this.options.every(opt => opt.match(VCHAR_REGEX))
+      )) {
+        return ''
+      }
+    }
+    const options = this.options && this.options.length
+      ? `?${this.options.join('?')}`
+      : ''
+    return `${this.algorithm}-${this.digest}${options}`
+  }
+}
+
+class Integrity {
+  get isIntegrity () { return true }
+  toJSON () {
+    return this.toString()
+  }
+
+  isEmpty () {
+    return Object.keys(this).length === 0
+  }
+
+  toString (opts) {
+    opts = ssriOpts(opts)
+    let sep = opts.sep || ' '
+    if (opts.strict) {
+      // Entries must be separated by whitespace, according to spec.
+      sep = sep.replace(/\S+/g, ' ')
+    }
+    return Object.keys(this).map(k => {
+      return this[k].map(hash => {
+        return Hash.prototype.toString.call(hash, opts)
+      }).filter(x => x.length).join(sep)
+    }).filter(x => x.length).join(sep)
+  }
+
+  concat (integrity, opts) {
+    opts = ssriOpts(opts)
+    const other = typeof integrity === 'string'
+      ? integrity
+      : stringify(integrity, opts)
+    return parse(`${this.toString(opts)} ${other}`, opts)
+  }
+
+  hexDigest () {
+    return parse(this, { single: true }).hexDigest()
+  }
+
+  // add additional hashes to an integrity value, but prevent
+  // *changing* an existing integrity hash.
+  merge (integrity, opts) {
+    opts = ssriOpts(opts)
+    const other = parse(integrity, opts)
+    for (const algo in other) {
+      if (this[algo]) {
+        if (!this[algo].find(hash =>
+          other[algo].find(otherhash =>
+            hash.digest === otherhash.digest))) {
+          throw new Error('hashes do not match, cannot update integrity')
+        }
+      } else {
+        this[algo] = other[algo]
+      }
+    }
+  }
+
+  match (integrity, opts) {
+    opts = ssriOpts(opts)
+    const other = parse(integrity, opts)
+    const algo = other.pickAlgorithm(opts)
+    return (
+      this[algo] &&
+      other[algo] &&
+      this[algo].find(hash =>
+        other[algo].find(otherhash =>
+          hash.digest === otherhash.digest
+        )
+      )
+    ) || false
+  }
+
+  pickAlgorithm (opts) {
+    opts = ssriOpts(opts)
+    const pickAlgorithm = opts.pickAlgorithm
+    const keys = Object.keys(this)
+    return keys.reduce((acc, algo) => {
+      return pickAlgorithm(acc, algo) || acc
+    })
+  }
+}
+
+module.exports.parse = parse
+function parse (sri, opts) {
+  if (!sri) return null
+  opts = ssriOpts(opts)
+  if (typeof sri === 'string') {
+    return _parse(sri, opts)
+  } else if (sri.algorithm && sri.digest) {
+    const fullSri = new Integrity()
+    fullSri[sri.algorithm] = [sri]
+    return _parse(stringify(fullSri, opts), opts)
+  } else {
+    return _parse(stringify(sri, opts), opts)
+  }
+}
+
+function _parse (integrity, opts) {
+  // 3.4.3. Parse metadata
+  // https://w3c.github.io/webappsec-subresource-integrity/#parse-metadata
+  if (opts.single) {
+    return new Hash(integrity, opts)
+  }
+  const hashes = integrity.trim().split(/\s+/).reduce((acc, string) => {
+    const hash = new Hash(string, opts)
+    if (hash.algorithm && hash.digest) {
+      const algo = hash.algorithm
+      if (!acc[algo]) { acc[algo] = [] }
+      acc[algo].push(hash)
+    }
+    return acc
+  }, new Integrity())
+  return hashes.isEmpty() ? null : hashes
+}
+
+module.exports.stringify = stringify
+function stringify (obj, opts) {
+  opts = ssriOpts(opts)
+  if (obj.algorithm && obj.digest) {
+    return Hash.prototype.toString.call(obj, opts)
+  } else if (typeof obj === 'string') {
+    return stringify(parse(obj, opts), opts)
+  } else {
+    return Integrity.prototype.toString.call(obj, opts)
+  }
+}
+
+module.exports.fromHex = fromHex
+function fromHex (hexDigest, algorithm, opts) {
+  opts = ssriOpts(opts)
+  const optString = getOptString(opts.options)
+  return parse(
+    `${algorithm}-${
+      Buffer.from(hexDigest, 'hex').toString('base64')
+    }${optString}`, opts
+  )
+}
+
+module.exports.fromData = fromData
+function fromData (data, opts) {
+  opts = ssriOpts(opts)
+  const algorithms = opts.algorithms
+  const optString = getOptString(opts.options)
+  return algorithms.reduce((acc, algo) => {
+    const digest = crypto.createHash(algo).update(data).digest('base64')
+    const hash = new Hash(
+      `${algo}-${digest}${optString}`,
+      opts
+    )
+    /* istanbul ignore else - it would be VERY strange if the string we
+     * just calculated with an algo did not have an algo or digest.
+     */
+    if (hash.algorithm && hash.digest) {
+      const algo = hash.algorithm
+      if (!acc[algo]) { acc[algo] = [] }
+      acc[algo].push(hash)
+    }
+    return acc
+  }, new Integrity())
+}
+
+module.exports.fromStream = fromStream
+function fromStream (stream, opts) {
+  opts = ssriOpts(opts)
+  const istream = integrityStream(opts)
+  return new Promise((resolve, reject) => {
+    stream.pipe(istream)
+    stream.on('error', reject)
+    istream.on('error', reject)
+    let sri
+    istream.on('integrity', s => { sri = s })
+    istream.on('end', () => resolve(sri))
+    istream.on('data', () => {})
+  })
+}
+
+module.exports.checkData = checkData
+function checkData (data, sri, opts) {
+  opts = ssriOpts(opts)
+  sri = parse(sri, opts)
+  if (!sri || !Object.keys(sri).length) {
+    if (opts.error) {
+      throw Object.assign(
+        new Error('No valid integrity hashes to check against'), {
+          code: 'EINTEGRITY'
+        }
+      )
+    } else {
+      return false
+    }
+  }
+  const algorithm = sri.pickAlgorithm(opts)
+  const digest = crypto.createHash(algorithm).update(data).digest('base64')
+  const newSri = parse({ algorithm, digest })
+  const match = newSri.match(sri, opts)
+  if (match || !opts.error) {
+    return match
+  } else if (typeof opts.size === 'number' && (data.length !== opts.size)) {
+    const err = new Error(`data size mismatch when checking ${sri}.\n  Wanted: ${opts.size}\n  Found: ${data.length}`)
+    err.code = 'EBADSIZE'
+    err.found = data.length
+    err.expected = opts.size
+    err.sri = sri
+    throw err
+  } else {
+    const err = new Error(`Integrity checksum failed when using ${algorithm}: Wanted ${sri}, but got ${newSri}. (${data.length} bytes)`)
+    err.code = 'EINTEGRITY'
+    err.found = newSri
+    err.expected = sri
+    err.algorithm = algorithm
+    err.sri = sri
+    throw err
+  }
+}
+
+module.exports.checkStream = checkStream
+function checkStream (stream, sri, opts) {
+  opts = ssriOpts(opts)
+  opts.integrity = sri
+  sri = parse(sri, opts)
+  if (!sri || !Object.keys(sri).length) {
+    return Promise.reject(Object.assign(
+      new Error('No valid integrity hashes to check against'), {
+        code: 'EINTEGRITY'
+      }
+    ))
+  }
+  const checker = integrityStream(opts)
+  return new Promise((resolve, reject) => {
+    stream.pipe(checker)
+    stream.on('error', reject)
+    checker.on('error', reject)
+    let sri
+    checker.on('verified', s => { sri = s })
+    checker.on('end', () => resolve(sri))
+    checker.on('data', () => {})
+  })
+}
+
+module.exports.integrityStream = integrityStream
+function integrityStream (opts = {}) {
+  return new IntegrityStream(opts)
+}
+
+module.exports.create = createIntegrity
+function createIntegrity (opts) {
+  opts = ssriOpts(opts)
+  const algorithms = opts.algorithms
+  const optString = getOptString(opts.options)
+
+  const hashes = algorithms.map(crypto.createHash)
+
+  return {
+    update: function (chunk, enc) {
+      hashes.forEach(h => h.update(chunk, enc))
+      return this
+    },
+    digest: function (enc) {
+      const integrity = algorithms.reduce((acc, algo) => {
+        const digest = hashes.shift().digest('base64')
+        const hash = new Hash(
+          `${algo}-${digest}${optString}`,
+          opts
+        )
+        /* istanbul ignore else - it would be VERY strange if the hash we
+         * just calculated with an algo did not have an algo or digest.
+         */
+        if (hash.algorithm && hash.digest) {
+          const algo = hash.algorithm
+          if (!acc[algo]) { acc[algo] = [] }
+          acc[algo].push(hash)
+        }
+        return acc
+      }, new Integrity())
+
+      return integrity
+    }
+  }
+}
+
+const NODE_HASHES = new Set(crypto.getHashes())
+
+// This is a Best Effort™ at a reasonable priority for hash algos
+const DEFAULT_PRIORITY = [
+  'md5', 'whirlpool', 'sha1', 'sha224', 'sha256', 'sha384', 'sha512',
+  // TODO - it's unclear _which_ of these Node will actually use as its name
+  //        for the algorithm, so we guesswork it based on the OpenSSL names.
+  'sha3',
+  'sha3-256', 'sha3-384', 'sha3-512',
+  'sha3_256', 'sha3_384', 'sha3_512'
+].filter(algo => NODE_HASHES.has(algo))
+
+function getPrioritizedHash (algo1, algo2) {
+  return DEFAULT_PRIORITY.indexOf(algo1.toLowerCase()) >= DEFAULT_PRIORITY.indexOf(algo2.toLowerCase())
+    ? algo1
+    : algo2
+}
diff --git a/node_modules/ssri/package.json b/node_modules/ssri/package.json
new file mode 100644
index 0000000..4af1a3c
--- /dev/null
+++ b/node_modules/ssri/package.json
@@ -0,0 +1,52 @@
+{
+  "name": "ssri",
+  "version": "8.0.1",
+  "description": "Standard Subresource Integrity library -- parses, serializes, generates, and verifies integrity metadata according to the SRI spec.",
+  "main": "index.js",
+  "files": [],
+  "scripts": {
+    "prerelease": "npm t",
+    "postrelease": "npm publish",
+    "prepublishOnly": "git push --follow-tags",
+    "posttest": "npm run lint",
+    "release": "standard-version -s",
+    "test": "tap",
+    "coverage": "tap",
+    "lint": "standard"
+  },
+  "tap": {
+    "check-coverage": true
+  },
+  "repository": "https://github.com/npm/ssri",
+  "keywords": [
+    "w3c",
+    "web",
+    "security",
+    "integrity",
+    "checksum",
+    "hashing",
+    "subresource integrity",
+    "sri",
+    "sri hash",
+    "sri string",
+    "sri generator",
+    "html"
+  ],
+  "author": {
+    "name": "Kat Marchán",
+    "email": "kzm@sykosomatic.org",
+    "twitter": "maybekatz"
+  },
+  "license": "ISC",
+  "dependencies": {
+    "minipass": "^3.1.1"
+  },
+  "devDependencies": {
+    "standard": "^16.0.3",
+    "standard-version": "^9.1.0",
+    "tap": "^14.10.6"
+  },
+  "engines": {
+    "node": ">= 8"
+  }
+}
diff --git a/node_modules/string-width/index.d.ts b/node_modules/string-width/index.d.ts
new file mode 100644
index 0000000..12b5309
--- /dev/null
+++ b/node_modules/string-width/index.d.ts
@@ -0,0 +1,29 @@
+declare const stringWidth: {
+	/**
+	Get the visual width of a string - the number of columns required to display it.
+
+	Some Unicode characters are [fullwidth](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms) and use double the normal width. [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code) are stripped and doesn't affect the width.
+
+	@example
+	```
+	import stringWidth = require('string-width');
+
+	stringWidth('a');
+	//=> 1
+
+	stringWidth('古');
+	//=> 2
+
+	stringWidth('\u001B[1m古\u001B[22m');
+	//=> 2
+	```
+	*/
+	(string: string): number;
+
+	// TODO: remove this in the next major version, refactor the whole definition to:
+	// declare function stringWidth(string: string): number;
+	// export = stringWidth;
+	default: typeof stringWidth;
+}
+
+export = stringWidth;
diff --git a/node_modules/string-width/index.js b/node_modules/string-width/index.js
new file mode 100644
index 0000000..f4d261a
--- /dev/null
+++ b/node_modules/string-width/index.js
@@ -0,0 +1,47 @@
+'use strict';
+const stripAnsi = require('strip-ansi');
+const isFullwidthCodePoint = require('is-fullwidth-code-point');
+const emojiRegex = require('emoji-regex');
+
+const stringWidth = string => {
+	if (typeof string !== 'string' || string.length === 0) {
+		return 0;
+	}
+
+	string = stripAnsi(string);
+
+	if (string.length === 0) {
+		return 0;
+	}
+
+	string = string.replace(emojiRegex(), '  ');
+
+	let width = 0;
+
+	for (let i = 0; i < string.length; i++) {
+		const code = string.codePointAt(i);
+
+		// Ignore control characters
+		if (code <= 0x1F || (code >= 0x7F && code <= 0x9F)) {
+			continue;
+		}
+
+		// Ignore combining characters
+		if (code >= 0x300 && code <= 0x36F) {
+			continue;
+		}
+
+		// Surrogates
+		if (code > 0xFFFF) {
+			i++;
+		}
+
+		width += isFullwidthCodePoint(code) ? 2 : 1;
+	}
+
+	return width;
+};
+
+module.exports = stringWidth;
+// TODO: remove this in the next major version
+module.exports.default = stringWidth;
diff --git a/node_modules/string-width/license b/node_modules/string-width/license
new file mode 100644
index 0000000..e7af2f7
--- /dev/null
+++ b/node_modules/string-width/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/string-width/package.json b/node_modules/string-width/package.json
new file mode 100644
index 0000000..28ba7b4
--- /dev/null
+++ b/node_modules/string-width/package.json
@@ -0,0 +1,56 @@
+{
+	"name": "string-width",
+	"version": "4.2.3",
+	"description": "Get the visual width of a string - the number of columns required to display it",
+	"license": "MIT",
+	"repository": "sindresorhus/string-width",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=8"
+	},
+	"scripts": {
+		"test": "xo && ava && tsd"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"string",
+		"character",
+		"unicode",
+		"width",
+		"visual",
+		"column",
+		"columns",
+		"fullwidth",
+		"full-width",
+		"full",
+		"ansi",
+		"escape",
+		"codes",
+		"cli",
+		"command-line",
+		"terminal",
+		"console",
+		"cjk",
+		"chinese",
+		"japanese",
+		"korean",
+		"fixed-width"
+	],
+	"dependencies": {
+		"emoji-regex": "^8.0.0",
+		"is-fullwidth-code-point": "^3.0.0",
+		"strip-ansi": "^6.0.1"
+	},
+	"devDependencies": {
+		"ava": "^1.4.1",
+		"tsd": "^0.7.1",
+		"xo": "^0.24.0"
+	}
+}
diff --git a/node_modules/string-width/readme.md b/node_modules/string-width/readme.md
new file mode 100644
index 0000000..bdd3141
--- /dev/null
+++ b/node_modules/string-width/readme.md
@@ -0,0 +1,50 @@
+# string-width
+
+> Get the visual width of a string - the number of columns required to display it
+
+Some Unicode characters are [fullwidth](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms) and use double the normal width. [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code) are stripped and doesn't affect the width.
+
+Useful to be able to measure the actual width of command-line output.
+
+
+## Install
+
+```
+$ npm install string-width
+```
+
+
+## Usage
+
+```js
+const stringWidth = require('string-width');
+
+stringWidth('a');
+//=> 1
+
+stringWidth('古');
+//=> 2
+
+stringWidth('\u001B[1m古\u001B[22m');
+//=> 2
+```
+
+
+## Related
+
+- [string-width-cli](https://github.com/sindresorhus/string-width-cli) - CLI for this module
+- [string-length](https://github.com/sindresorhus/string-length) - Get the real length of a string
+- [widest-line](https://github.com/sindresorhus/widest-line) - Get the visual width of the widest line in a string
+
+
+---
+
+<div align="center">
+	<b>
+		<a href="https://tidelift.com/subscription/pkg/npm-string-width?utm_source=npm-string-width&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
+	</b>
+	<br>
+	<sub>
+		Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
+	</sub>
+</div>
diff --git a/node_modules/string_decoder/LICENSE b/node_modules/string_decoder/LICENSE
new file mode 100644
index 0000000..778edb2
--- /dev/null
+++ b/node_modules/string_decoder/LICENSE
@@ -0,0 +1,48 @@
+Node.js is licensed for use as follows:
+
+"""
+Copyright Node.js contributors. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+"""
+
+This license applies to parts of Node.js originating from the
+https://github.com/joyent/node repository:
+
+"""
+Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+"""
+
diff --git a/node_modules/string_decoder/README.md b/node_modules/string_decoder/README.md
new file mode 100644
index 0000000..5fd5831
--- /dev/null
+++ b/node_modules/string_decoder/README.md
@@ -0,0 +1,47 @@
+# string_decoder
+
+***Node-core v8.9.4 string_decoder for userland***
+
+
+[![NPM](https://nodei.co/npm/string_decoder.png?downloads=true&downloadRank=true)](https://nodei.co/npm/string_decoder/)
+[![NPM](https://nodei.co/npm-dl/string_decoder.png?&months=6&height=3)](https://nodei.co/npm/string_decoder/)
+
+
+```bash
+npm install --save string_decoder
+```
+
+***Node-core string_decoder for userland***
+
+This package is a mirror of the string_decoder implementation in Node-core.
+
+Full documentation may be found on the [Node.js website](https://nodejs.org/dist/v8.9.4/docs/api/).
+
+As of version 1.0.0 **string_decoder** uses semantic versioning.
+
+## Previous versions
+
+Previous version numbers match the versions found in Node core, e.g. 0.10.24 matches Node 0.10.24, likewise 0.11.10 matches Node 0.11.10.
+
+## Update
+
+The *build/* directory contains a build script that will scrape the source from the [nodejs/node](https://github.com/nodejs/node) repo given a specific Node version.
+
+## Streams Working Group
+
+`string_decoder` is maintained by the Streams Working Group, which
+oversees the development and maintenance of the Streams API within
+Node.js. The responsibilities of the Streams Working Group include:
+
+* Addressing stream issues on the Node.js issue tracker.
+* Authoring and editing stream documentation within the Node.js project.
+* Reviewing changes to stream subclasses within the Node.js project.
+* Redirecting changes to streams from the Node.js project to this
+  project.
+* Assisting in the implementation of stream providers within Node.js.
+* Recommending versions of `readable-stream` to be included in Node.js.
+* Messaging about the future of streams to give the community advance
+  notice of changes.
+
+See [readable-stream](https://github.com/nodejs/readable-stream) for
+more details.
diff --git a/node_modules/string_decoder/lib/string_decoder.js b/node_modules/string_decoder/lib/string_decoder.js
new file mode 100644
index 0000000..2e89e63
--- /dev/null
+++ b/node_modules/string_decoder/lib/string_decoder.js
@@ -0,0 +1,296 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+'use strict';
+
+/*<replacement>*/
+
+var Buffer = require('safe-buffer').Buffer;
+/*</replacement>*/
+
+var isEncoding = Buffer.isEncoding || function (encoding) {
+  encoding = '' + encoding;
+  switch (encoding && encoding.toLowerCase()) {
+    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
+      return true;
+    default:
+      return false;
+  }
+};
+
+function _normalizeEncoding(enc) {
+  if (!enc) return 'utf8';
+  var retried;
+  while (true) {
+    switch (enc) {
+      case 'utf8':
+      case 'utf-8':
+        return 'utf8';
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return 'utf16le';
+      case 'latin1':
+      case 'binary':
+        return 'latin1';
+      case 'base64':
+      case 'ascii':
+      case 'hex':
+        return enc;
+      default:
+        if (retried) return; // undefined
+        enc = ('' + enc).toLowerCase();
+        retried = true;
+    }
+  }
+};
+
+// Do not cache `Buffer.isEncoding` when checking encoding names as some
+// modules monkey-patch it to support additional encodings
+function normalizeEncoding(enc) {
+  var nenc = _normalizeEncoding(enc);
+  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
+  return nenc || enc;
+}
+
+// StringDecoder provides an interface for efficiently splitting a series of
+// buffers into a series of JS strings without breaking apart multi-byte
+// characters.
+exports.StringDecoder = StringDecoder;
+function StringDecoder(encoding) {
+  this.encoding = normalizeEncoding(encoding);
+  var nb;
+  switch (this.encoding) {
+    case 'utf16le':
+      this.text = utf16Text;
+      this.end = utf16End;
+      nb = 4;
+      break;
+    case 'utf8':
+      this.fillLast = utf8FillLast;
+      nb = 4;
+      break;
+    case 'base64':
+      this.text = base64Text;
+      this.end = base64End;
+      nb = 3;
+      break;
+    default:
+      this.write = simpleWrite;
+      this.end = simpleEnd;
+      return;
+  }
+  this.lastNeed = 0;
+  this.lastTotal = 0;
+  this.lastChar = Buffer.allocUnsafe(nb);
+}
+
+StringDecoder.prototype.write = function (buf) {
+  if (buf.length === 0) return '';
+  var r;
+  var i;
+  if (this.lastNeed) {
+    r = this.fillLast(buf);
+    if (r === undefined) return '';
+    i = this.lastNeed;
+    this.lastNeed = 0;
+  } else {
+    i = 0;
+  }
+  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
+  return r || '';
+};
+
+StringDecoder.prototype.end = utf8End;
+
+// Returns only complete characters in a Buffer
+StringDecoder.prototype.text = utf8Text;
+
+// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
+StringDecoder.prototype.fillLast = function (buf) {
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+  }
+  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
+  this.lastNeed -= buf.length;
+};
+
+// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
+// continuation byte. If an invalid byte is detected, -2 is returned.
+function utf8CheckByte(byte) {
+  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
+  return byte >> 6 === 0x02 ? -1 : -2;
+}
+
+// Checks at most 3 bytes at the end of a Buffer in order to detect an
+// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
+// needed to complete the UTF-8 character (if applicable) are returned.
+function utf8CheckIncomplete(self, buf, i) {
+  var j = buf.length - 1;
+  if (j < i) return 0;
+  var nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 1;
+    return nb;
+  }
+  if (--j < i || nb === -2) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 2;
+    return nb;
+  }
+  if (--j < i || nb === -2) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) {
+      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
+    }
+    return nb;
+  }
+  return 0;
+}
+
+// Validates as many continuation bytes for a multi-byte UTF-8 character as
+// needed or are available. If we see a non-continuation byte where we expect
+// one, we "replace" the validated continuation bytes we've seen so far with
+// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
+// behavior. The continuation byte check is included three times in the case
+// where all of the continuation bytes for a character exist in the same buffer.
+// It is also done this way as a slight performance increase instead of using a
+// loop.
+function utf8CheckExtraBytes(self, buf, p) {
+  if ((buf[0] & 0xC0) !== 0x80) {
+    self.lastNeed = 0;
+    return '\ufffd';
+  }
+  if (self.lastNeed > 1 && buf.length > 1) {
+    if ((buf[1] & 0xC0) !== 0x80) {
+      self.lastNeed = 1;
+      return '\ufffd';
+    }
+    if (self.lastNeed > 2 && buf.length > 2) {
+      if ((buf[2] & 0xC0) !== 0x80) {
+        self.lastNeed = 2;
+        return '\ufffd';
+      }
+    }
+  }
+}
+
+// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
+function utf8FillLast(buf) {
+  var p = this.lastTotal - this.lastNeed;
+  var r = utf8CheckExtraBytes(this, buf, p);
+  if (r !== undefined) return r;
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, p, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+  }
+  buf.copy(this.lastChar, p, 0, buf.length);
+  this.lastNeed -= buf.length;
+}
+
+// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
+// partial character, the character's bytes are buffered until the required
+// number of bytes are available.
+function utf8Text(buf, i) {
+  var total = utf8CheckIncomplete(this, buf, i);
+  if (!this.lastNeed) return buf.toString('utf8', i);
+  this.lastTotal = total;
+  var end = buf.length - (total - this.lastNeed);
+  buf.copy(this.lastChar, 0, end);
+  return buf.toString('utf8', i, end);
+}
+
+// For UTF-8, a replacement character is added when ending on a partial
+// character.
+function utf8End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + '\ufffd';
+  return r;
+}
+
+// UTF-16LE typically needs two bytes per character, but even if we have an even
+// number of bytes available, we need to check if we end on a leading/high
+// surrogate. In that case, we need to wait for the next two bytes in order to
+// decode the last character properly.
+function utf16Text(buf, i) {
+  if ((buf.length - i) % 2 === 0) {
+    var r = buf.toString('utf16le', i);
+    if (r) {
+      var c = r.charCodeAt(r.length - 1);
+      if (c >= 0xD800 && c <= 0xDBFF) {
+        this.lastNeed = 2;
+        this.lastTotal = 4;
+        this.lastChar[0] = buf[buf.length - 2];
+        this.lastChar[1] = buf[buf.length - 1];
+        return r.slice(0, -1);
+      }
+    }
+    return r;
+  }
+  this.lastNeed = 1;
+  this.lastTotal = 2;
+  this.lastChar[0] = buf[buf.length - 1];
+  return buf.toString('utf16le', i, buf.length - 1);
+}
+
+// For UTF-16LE we do not explicitly append special replacement characters if we
+// end on a partial character, we simply let v8 handle that.
+function utf16End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) {
+    var end = this.lastTotal - this.lastNeed;
+    return r + this.lastChar.toString('utf16le', 0, end);
+  }
+  return r;
+}
+
+function base64Text(buf, i) {
+  var n = (buf.length - i) % 3;
+  if (n === 0) return buf.toString('base64', i);
+  this.lastNeed = 3 - n;
+  this.lastTotal = 3;
+  if (n === 1) {
+    this.lastChar[0] = buf[buf.length - 1];
+  } else {
+    this.lastChar[0] = buf[buf.length - 2];
+    this.lastChar[1] = buf[buf.length - 1];
+  }
+  return buf.toString('base64', i, buf.length - n);
+}
+
+function base64End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
+  return r;
+}
+
+// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
+function simpleWrite(buf) {
+  return buf.toString(this.encoding);
+}
+
+function simpleEnd(buf) {
+  return buf && buf.length ? this.write(buf) : '';
+}
\ No newline at end of file
diff --git a/node_modules/string_decoder/package.json b/node_modules/string_decoder/package.json
new file mode 100644
index 0000000..b2bb141
--- /dev/null
+++ b/node_modules/string_decoder/package.json
@@ -0,0 +1,34 @@
+{
+  "name": "string_decoder",
+  "version": "1.3.0",
+  "description": "The string_decoder module from Node core",
+  "main": "lib/string_decoder.js",
+  "files": [
+    "lib"
+  ],
+  "dependencies": {
+    "safe-buffer": "~5.2.0"
+  },
+  "devDependencies": {
+    "babel-polyfill": "^6.23.0",
+    "core-util-is": "^1.0.2",
+    "inherits": "^2.0.3",
+    "tap": "~0.4.8"
+  },
+  "scripts": {
+    "test": "tap test/parallel/*.js && node test/verify-dependencies",
+    "ci": "tap test/parallel/*.js test/ours/*.js --tap | tee test.tap && node test/verify-dependencies.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/nodejs/string_decoder.git"
+  },
+  "homepage": "https://github.com/nodejs/string_decoder",
+  "keywords": [
+    "string",
+    "decoder",
+    "browser",
+    "browserify"
+  ],
+  "license": "MIT"
+}
diff --git a/node_modules/strip-ansi/index.d.ts b/node_modules/strip-ansi/index.d.ts
new file mode 100644
index 0000000..907fccc
--- /dev/null
+++ b/node_modules/strip-ansi/index.d.ts
@@ -0,0 +1,17 @@
+/**
+Strip [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code) from a string.
+
+@example
+```
+import stripAnsi = require('strip-ansi');
+
+stripAnsi('\u001B[4mUnicorn\u001B[0m');
+//=> 'Unicorn'
+
+stripAnsi('\u001B]8;;https://github.com\u0007Click\u001B]8;;\u0007');
+//=> 'Click'
+```
+*/
+declare function stripAnsi(string: string): string;
+
+export = stripAnsi;
diff --git a/node_modules/strip-ansi/index.js b/node_modules/strip-ansi/index.js
new file mode 100644
index 0000000..9a593df
--- /dev/null
+++ b/node_modules/strip-ansi/index.js
@@ -0,0 +1,4 @@
+'use strict';
+const ansiRegex = require('ansi-regex');
+
+module.exports = string => typeof string === 'string' ? string.replace(ansiRegex(), '') : string;
diff --git a/node_modules/strip-ansi/license b/node_modules/strip-ansi/license
new file mode 100644
index 0000000..e7af2f7
--- /dev/null
+++ b/node_modules/strip-ansi/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/strip-ansi/package.json b/node_modules/strip-ansi/package.json
new file mode 100644
index 0000000..1a41108
--- /dev/null
+++ b/node_modules/strip-ansi/package.json
@@ -0,0 +1,54 @@
+{
+	"name": "strip-ansi",
+	"version": "6.0.1",
+	"description": "Strip ANSI escape codes from a string",
+	"license": "MIT",
+	"repository": "chalk/strip-ansi",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=8"
+	},
+	"scripts": {
+		"test": "xo && ava && tsd"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"strip",
+		"trim",
+		"remove",
+		"ansi",
+		"styles",
+		"color",
+		"colour",
+		"colors",
+		"terminal",
+		"console",
+		"string",
+		"tty",
+		"escape",
+		"formatting",
+		"rgb",
+		"256",
+		"shell",
+		"xterm",
+		"log",
+		"logging",
+		"command-line",
+		"text"
+	],
+	"dependencies": {
+		"ansi-regex": "^5.0.1"
+	},
+	"devDependencies": {
+		"ava": "^2.4.0",
+		"tsd": "^0.10.0",
+		"xo": "^0.25.3"
+	}
+}
diff --git a/node_modules/strip-ansi/readme.md b/node_modules/strip-ansi/readme.md
new file mode 100644
index 0000000..7c4b56d
--- /dev/null
+++ b/node_modules/strip-ansi/readme.md
@@ -0,0 +1,46 @@
+# strip-ansi [![Build Status](https://travis-ci.org/chalk/strip-ansi.svg?branch=master)](https://travis-ci.org/chalk/strip-ansi)
+
+> Strip [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code) from a string
+
+
+## Install
+
+```
+$ npm install strip-ansi
+```
+
+
+## Usage
+
+```js
+const stripAnsi = require('strip-ansi');
+
+stripAnsi('\u001B[4mUnicorn\u001B[0m');
+//=> 'Unicorn'
+
+stripAnsi('\u001B]8;;https://github.com\u0007Click\u001B]8;;\u0007');
+//=> 'Click'
+```
+
+
+## strip-ansi for enterprise
+
+Available as part of the Tidelift Subscription.
+
+The maintainers of strip-ansi and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/npm-strip-ansi?utm_source=npm-strip-ansi&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)
+
+
+## Related
+
+- [strip-ansi-cli](https://github.com/chalk/strip-ansi-cli) - CLI for this module
+- [strip-ansi-stream](https://github.com/chalk/strip-ansi-stream) - Streaming version of this module
+- [has-ansi](https://github.com/chalk/has-ansi) - Check if a string has ANSI escape codes
+- [ansi-regex](https://github.com/chalk/ansi-regex) - Regular expression for matching ANSI escape codes
+- [chalk](https://github.com/chalk/chalk) - Terminal string styling done right
+
+
+## Maintainers
+
+- [Sindre Sorhus](https://github.com/sindresorhus)
+- [Josh Junon](https://github.com/qix-)
+
diff --git a/node_modules/tar/LICENSE b/node_modules/tar/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/tar/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/tar/README.md b/node_modules/tar/README.md
new file mode 100644
index 0000000..7cb09da
--- /dev/null
+++ b/node_modules/tar/README.md
@@ -0,0 +1,1070 @@
+# node-tar
+
+Fast and full-featured Tar for Node.js
+
+The API is designed to mimic the behavior of `tar(1)` on unix systems.
+If you are familiar with how tar works, most of this will hopefully be
+straightforward for you.  If not, then hopefully this module can teach
+you useful unix skills that may come in handy someday :)
+
+## Background
+
+A "tar file" or "tarball" is an archive of file system entries
+(directories, files, links, etc.)  The name comes from "tape archive".
+If you run `man tar` on almost any Unix command line, you'll learn
+quite a bit about what it can do, and its history.
+
+Tar has 5 main top-level commands:
+
+* `c` Create an archive
+* `r` Replace entries within an archive
+* `u` Update entries within an archive (ie, replace if they're newer)
+* `t` List out the contents of an archive
+* `x` Extract an archive to disk
+
+The other flags and options modify how this top level function works.
+
+## High-Level API
+
+These 5 functions are the high-level API.  All of them have a
+single-character name (for unix nerds familiar with `tar(1)`) as well
+as a long name (for everyone else).
+
+All the high-level functions take the following arguments, all three
+of which are optional and may be omitted.
+
+1. `options` - An optional object specifying various options
+2. `paths` - An array of paths to add or extract
+3. `callback` - Called when the command is completed, if async.  (If
+   sync or no file specified, providing a callback throws a
+   `TypeError`.)
+
+If the command is sync (ie, if `options.sync=true`), then the
+callback is not allowed, since the action will be completed immediately.
+
+If a `file` argument is specified, and the command is async, then a
+`Promise` is returned.  In this case, if async, a callback may be
+provided which is called when the command is completed.
+
+If a `file` option is not specified, then a stream is returned.  For
+`create`, this is a readable stream of the generated archive.  For
+`list` and `extract` this is a writable stream that an archive should
+be written into.  If a file is not specified, then a callback is not
+allowed, because you're already getting a stream to work with.
+
+`replace` and `update` only work on existing archives, and so require
+a `file` argument.
+
+Sync commands without a file argument return a stream that acts on its
+input immediately in the same tick.  For readable streams, this means
+that all of the data is immediately available by calling
+`stream.read()`.  For writable streams, it will be acted upon as soon
+as it is provided, but this can be at any time.
+
+### Warnings and Errors
+
+Tar emits warnings and errors for recoverable and unrecoverable situations,
+respectively.  In many cases, a warning only affects a single entry in an
+archive, or is simply informing you that it's modifying an entry to comply
+with the settings provided.
+
+Unrecoverable warnings will always raise an error (ie, emit `'error'` on
+streaming actions, throw for non-streaming sync actions, reject the
+returned Promise for non-streaming async operations, or call a provided
+callback with an `Error` as the first argument).  Recoverable errors will
+raise an error only if `strict: true` is set in the options.
+
+Respond to (recoverable) warnings by listening to the `warn` event.
+Handlers receive 3 arguments:
+
+- `code` String.  One of the error codes below.  This may not match
+  `data.code`, which preserves the original error code from fs and zlib.
+- `message` String.  More details about the error.
+- `data` Metadata about the error.  An `Error` object for errors raised by
+  fs and zlib.  All fields are attached to errors raisd by tar.  Typically
+  contains the following fields, as relevant:
+  - `tarCode` The tar error code.
+  - `code` Either the tar error code, or the error code set by the
+    underlying system.
+  - `file` The archive file being read or written.
+  - `cwd` Working directory for creation and extraction operations.
+  - `entry` The entry object (if it could be created) for `TAR_ENTRY_INFO`,
+    `TAR_ENTRY_INVALID`, and `TAR_ENTRY_ERROR` warnings.
+  - `header` The header object (if it could be created, and the entry could
+    not be created) for `TAR_ENTRY_INFO` and `TAR_ENTRY_INVALID` warnings.
+  - `recoverable` Boolean.  If `false`, then the warning will emit an
+    `error`, even in non-strict mode.
+
+#### Error Codes
+
+* `TAR_ENTRY_INFO`  An informative error indicating that an entry is being
+  modified, but otherwise processed normally.  For example, removing `/` or
+  `C:\` from absolute paths if `preservePaths` is not set.
+
+* `TAR_ENTRY_INVALID` An indication that a given entry is not a valid tar
+  archive entry, and will be skipped.  This occurs when:
+  - a checksum fails,
+  - a `linkpath` is missing for a link type, or
+  - a `linkpath` is provided for a non-link type.
+
+  If every entry in a parsed archive raises an `TAR_ENTRY_INVALID` error,
+  then the archive is presumed to be unrecoverably broken, and
+  `TAR_BAD_ARCHIVE` will be raised.
+
+* `TAR_ENTRY_ERROR` The entry appears to be a valid tar archive entry, but
+  encountered an error which prevented it from being unpacked.  This occurs
+  when:
+  - an unrecoverable fs error happens during unpacking,
+  - an entry has `..` in the path and `preservePaths` is not set, or
+  - an entry is extracting through a symbolic link, when `preservePaths` is
+    not set.
+
+* `TAR_ENTRY_UNSUPPORTED`  An indication that a given entry is
+  a valid archive entry, but of a type that is unsupported, and so will be
+  skipped in archive creation or extracting.
+
+* `TAR_ABORT`  When parsing gzipped-encoded archives, the parser will
+  abort the parse process raise a warning for any zlib errors encountered.
+  Aborts are considered unrecoverable for both parsing and unpacking.
+
+* `TAR_BAD_ARCHIVE`  The archive file is totally hosed.  This can happen for
+  a number of reasons, and always occurs at the end of a parse or extract:
+
+  - An entry body was truncated before seeing the full number of bytes.
+  - The archive contained only invalid entries, indicating that it is
+    likely not an archive, or at least, not an archive this library can
+    parse.
+
+  `TAR_BAD_ARCHIVE` is considered informative for parse operations, but
+  unrecoverable for extraction.  Note that, if encountered at the end of an
+  extraction, tar WILL still have extracted as much it could from the
+  archive, so there may be some garbage files to clean up.
+
+Errors that occur deeper in the system (ie, either the filesystem or zlib)
+will have their error codes left intact, and a `tarCode` matching one of
+the above will be added to the warning metadata or the raised error object.
+
+Errors generated by tar will have one of the above codes set as the
+`error.code` field as well, but since errors originating in zlib or fs will
+have their original codes, it's better to read `error.tarCode` if you wish
+to see how tar is handling the issue.
+
+### Examples
+
+The API mimics the `tar(1)` command line functionality, with aliases
+for more human-readable option and function names.  The goal is that
+if you know how to use `tar(1)` in Unix, then you know how to use
+`require('tar')` in JavaScript.
+
+To replicate `tar czf my-tarball.tgz files and folders`, you'd do:
+
+```js
+tar.c(
+  {
+    gzip: <true|gzip options>,
+    file: 'my-tarball.tgz'
+  },
+  ['some', 'files', 'and', 'folders']
+).then(_ => { .. tarball has been created .. })
+```
+
+To replicate `tar cz files and folders > my-tarball.tgz`, you'd do:
+
+```js
+tar.c( // or tar.create
+  {
+    gzip: <true|gzip options>
+  },
+  ['some', 'files', 'and', 'folders']
+).pipe(fs.createWriteStream('my-tarball.tgz'))
+```
+
+To replicate `tar xf my-tarball.tgz` you'd do:
+
+```js
+tar.x(  // or tar.extract(
+  {
+    file: 'my-tarball.tgz'
+  }
+).then(_=> { .. tarball has been dumped in cwd .. })
+```
+
+To replicate `cat my-tarball.tgz | tar x -C some-dir --strip=1`:
+
+```js
+fs.createReadStream('my-tarball.tgz').pipe(
+  tar.x({
+    strip: 1,
+    C: 'some-dir' // alias for cwd:'some-dir', also ok
+  })
+)
+```
+
+To replicate `tar tf my-tarball.tgz`, do this:
+
+```js
+tar.t({
+  file: 'my-tarball.tgz',
+  onentry: entry => { .. do whatever with it .. }
+})
+```
+
+For example, to just get the list of filenames from an archive:
+
+```js
+const getEntryFilenames = async tarballFilename => {
+  const filenames = []
+  await tar.t({
+    file: tarballFilename,
+    onentry: entry => filenames.push(entry.path),
+  })
+  return filenames
+}
+```
+
+To replicate `cat my-tarball.tgz | tar t` do:
+
+```js
+fs.createReadStream('my-tarball.tgz')
+  .pipe(tar.t())
+  .on('entry', entry => { .. do whatever with it .. })
+```
+
+To do anything synchronous, add `sync: true` to the options.  Note
+that sync functions don't take a callback and don't return a promise.
+When the function returns, it's already done.  Sync methods without a
+file argument return a sync stream, which flushes immediately.  But,
+of course, it still won't be done until you `.end()` it.
+
+```js
+const getEntryFilenamesSync = tarballFilename => {
+  const filenames = []
+  tar.t({
+    file: tarballFilename,
+    onentry: entry => filenames.push(entry.path),
+    sync: true,
+  })
+  return filenames
+}
+```
+
+To filter entries, add `filter: <function>` to the options.
+Tar-creating methods call the filter with `filter(path, stat)`.
+Tar-reading methods (including extraction) call the filter with
+`filter(path, entry)`.  The filter is called in the `this`-context of
+the `Pack` or `Unpack` stream object.
+
+The arguments list to `tar t` and `tar x` specify a list of filenames
+to extract or list, so they're equivalent to a filter that tests if
+the file is in the list.
+
+For those who _aren't_ fans of tar's single-character command names:
+
+```
+tar.c === tar.create
+tar.r === tar.replace (appends to archive, file is required)
+tar.u === tar.update (appends if newer, file is required)
+tar.x === tar.extract
+tar.t === tar.list
+```
+
+Keep reading for all the command descriptions and options, as well as
+the low-level API that they are built on.
+
+### tar.c(options, fileList, callback) [alias: tar.create]
+
+Create a tarball archive.
+
+The `fileList` is an array of paths to add to the tarball.  Adding a
+directory also adds its children recursively.
+
+An entry in `fileList` that starts with an `@` symbol is a tar archive
+whose entries will be added.  To add a file that starts with `@`,
+prepend it with `./`.
+
+The following options are supported:
+
+- `file` Write the tarball archive to the specified filename.  If this
+  is specified, then the callback will be fired when the file has been
+  written, and a promise will be returned that resolves when the file
+  is written.  If a filename is not specified, then a Readable Stream
+  will be returned which will emit the file data. [Alias: `f`]
+- `sync` Act synchronously.  If this is set, then any provided file
+  will be fully written after the call to `tar.c`.  If this is set,
+  and a file is not provided, then the resulting stream will already
+  have the data ready to `read` or `emit('data')` as soon as you
+  request it.
+- `onwarn` A function that will get called with `(code, message, data)` for
+  any warnings encountered.  (See "Warnings and Errors")
+- `strict` Treat warnings as crash-worthy errors.  Default false.
+- `cwd` The current working directory for creating the archive.
+  Defaults to `process.cwd()`.  [Alias: `C`]
+- `prefix` A path portion to prefix onto the entries in the archive.
+- `gzip` Set to any truthy value to create a gzipped archive, or an
+  object with settings for `zlib.Gzip()` [Alias: `z`]
+- `filter` A function that gets called with `(path, stat)` for each
+  entry being added.  Return `true` to add the entry to the archive,
+  or `false` to omit it.
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+  `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`.  Note
+  that `mtime` is still included, because this is necessary for other
+  time-based operations.  Additionally, `mode` is set to a "reasonable
+  default" for most unix systems, based on a `umask` value of `0o22`.
+- `preservePaths` Allow absolute paths.  By default, `/` is stripped
+  from absolute paths. [Alias: `P`]
+- `mode` The mode to set on the created file archive
+- `noDirRecurse` Do not recursively archive the contents of
+  directories. [Alias: `n`]
+- `follow` Set to true to pack the targets of symbolic links.  Without
+  this option, symbolic links are archived as such. [Alias: `L`, `h`]
+- `noPax` Suppress pax extended headers.  Note that this means that
+  long paths and linkpaths will be truncated, and large or negative
+  numeric values may be interpreted incorrectly.
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+  Note that this prevents using other mtime-based features like
+  `tar.update` or the `keepNewer` option with the resulting tar archive.
+  [Alias: `m`, `no-mtime`]
+- `mtime` Set to a `Date` object to force a specific `mtime` for
+  everything added to the archive.  Overridden by `noMtime`.
+
+The following options are mostly internal, but can be modified in some
+advanced use cases, such as re-using caches between runs.
+
+- `linkCache` A Map object containing the device and inode value for
+  any file whose nlink is > 1, to identify hard links.
+- `statCache` A Map object that caches calls `lstat`.
+- `readdirCache` A Map object that caches calls to `readdir`.
+- `jobs` A number specifying how many concurrent jobs to run.
+  Defaults to 4.
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+  Defaults to 16 MB.
+
+### tar.x(options, fileList, callback) [alias: tar.extract]
+
+Extract a tarball archive.
+
+The `fileList` is an array of paths to extract from the tarball.  If
+no paths are provided, then all the entries are extracted.
+
+If the archive is gzipped, then tar will detect this and unzip it.
+
+Note that all directories that are created will be forced to be
+writable, readable, and listable by their owner, to avoid cases where
+a directory prevents extraction of child entries by virtue of its
+mode.
+
+Most extraction errors will cause a `warn` event to be emitted.  If
+the `cwd` is missing, or not a directory, then the extraction will
+fail completely.
+
+The following options are supported:
+
+- `cwd` Extract files relative to the specified directory.  Defaults
+  to `process.cwd()`.  If provided, this must exist and must be a
+  directory. [Alias: `C`]
+- `file` The archive file to extract.  If not specified, then a
+  Writable stream is returned where the archive data should be
+  written. [Alias: `f`]
+- `sync` Create files and directories synchronously.
+- `strict` Treat warnings as crash-worthy errors.  Default false.
+- `filter` A function that gets called with `(path, entry)` for each
+  entry being unpacked.  Return `true` to unpack the entry from the
+  archive, or `false` to skip it.
+- `newer` Set to true to keep the existing file on disk if it's newer
+  than the file in the archive. [Alias: `keep-newer`,
+  `keep-newer-files`]
+- `keep` Do not overwrite existing files.  In particular, if a file
+  appears more than once in an archive, later copies will not
+  overwrite earlier copies. [Alias: `k`, `keep-existing`]
+- `preservePaths` Allow absolute paths, paths containing `..`, and
+  extracting through symbolic links.  By default, `/` is stripped from
+  absolute paths, `..` paths are not extracted, and any file whose
+  location would be modified by a symbolic link is not extracted.
+  [Alias: `P`]
+- `unlink` Unlink files before creating them.  Without this option,
+  tar overwrites existing files, which preserves existing hardlinks.
+  With this option, existing hardlinks will be broken, as will any
+  symlink that would affect the location of an extracted file. [Alias:
+  `U`]
+- `strip` Remove the specified number of leading path elements.
+  Pathnames with fewer elements will be silently skipped.  Note that
+  the pathname is edited after applying the filter, but before
+  security checks. [Alias: `strip-components`, `stripComponents`]
+- `onwarn` A function that will get called with `(code, message, data)` for
+  any warnings encountered.  (See "Warnings and Errors")
+- `preserveOwner` If true, tar will set the `uid` and `gid` of
+  extracted entries to the `uid` and `gid` fields in the archive.
+  This defaults to true when run as root, and false otherwise.  If
+  false, then files and directories will be set with the owner and
+  group of the user running the process.  This is similar to `-p` in
+  `tar(1)`, but ACLs and other system-specific data is never unpacked
+  in this implementation, and modes are set by default already.
+  [Alias: `p`]
+- `uid` Set to a number to force ownership of all extracted files and
+  folders, and all implicitly created directories, to be owned by the
+  specified user id, regardless of the `uid` field in the archive.
+  Cannot be used along with `preserveOwner`.  Requires also setting a
+  `gid` option.
+- `gid` Set to a number to force ownership of all extracted files and
+  folders, and all implicitly created directories, to be owned by the
+  specified group id, regardless of the `gid` field in the archive.
+  Cannot be used along with `preserveOwner`.  Requires also setting a
+  `uid` option.
+- `noMtime` Set to true to omit writing `mtime` value for extracted
+  entries. [Alias: `m`, `no-mtime`]
+- `transform` Provide a function that takes an `entry` object, and
+  returns a stream, or any falsey value.  If a stream is provided,
+  then that stream's data will be written instead of the contents of
+  the archive entry.  If a falsey value is provided, then the entry is
+  written to disk as normal.  (To exclude items from extraction, use
+  the `filter` option described above.)
+- `onentry` A function that gets called with `(entry)` for each entry
+  that passes the filter.
+- `onwarn` A function that will get called with `(code, message, data)` for
+  any warnings encountered.  (See "Warnings and Errors")
+- `noChmod` Set to true to omit calling `fs.chmod()` to ensure that the
+  extracted file matches the entry mode.  This also suppresses the call to
+  `process.umask()` to determine the default umask value, since tar will
+  extract with whatever mode is provided, and let the process `umask` apply
+  normally.
+
+The following options are mostly internal, but can be modified in some
+advanced use cases, such as re-using caches between runs.
+
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+  Defaults to 16 MB.
+- `umask` Filter the modes of entries like `process.umask()`.
+- `dmode` Default mode for directories
+- `fmode` Default mode for files
+- `dirCache` A Map object of which directories exist.
+- `maxMetaEntrySize` The maximum size of meta entries that is
+  supported.  Defaults to 1 MB.
+
+Note that using an asynchronous stream type with the `transform`
+option will cause undefined behavior in sync extractions.
+[MiniPass](http://npm.im/minipass)-based streams are designed for this
+use case.
+
+### tar.t(options, fileList, callback) [alias: tar.list]
+
+List the contents of a tarball archive.
+
+The `fileList` is an array of paths to list from the tarball.  If
+no paths are provided, then all the entries are listed.
+
+If the archive is gzipped, then tar will detect this and unzip it.
+
+If the `file` option is _not_ provided, then returns an event emitter that
+emits `entry` events with `tar.ReadEntry` objects.  However, they don't
+emit `'data'` or `'end'` events.  (If you want to get actual readable
+entries, use the `tar.Parse` class instead.)
+
+If a `file` option _is_ provided, then the return value will be a promise
+that resolves when the file has been fully traversed in async mode, or
+`undefined` if `sync: true` is set.  Thus, you _must_ specify an `onentry`
+method in order to do anything useful with the data it parses.
+
+The following options are supported:
+
+- `file` The archive file to list.  If not specified, then a
+  Writable stream is returned where the archive data should be
+  written. [Alias: `f`]
+- `sync` Read the specified file synchronously.  (This has no effect
+  when a file option isn't specified, because entries are emitted as
+  fast as they are parsed from the stream anyway.)
+- `strict` Treat warnings as crash-worthy errors.  Default false.
+- `filter` A function that gets called with `(path, entry)` for each
+  entry being listed.  Return `true` to emit the entry from the
+  archive, or `false` to skip it.
+- `onentry` A function that gets called with `(entry)` for each entry
+  that passes the filter.  This is important for when `file` is set,
+  because there is no other way to do anything useful with this method.
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+  Defaults to 16 MB.
+- `noResume` By default, `entry` streams are resumed immediately after
+  the call to `onentry`.  Set `noResume: true` to suppress this
+  behavior.  Note that by opting into this, the stream will never
+  complete until the entry data is consumed.
+- `onwarn` A function that will get called with `(code, message, data)` for
+  any warnings encountered.  (See "Warnings and Errors")
+
+### tar.u(options, fileList, callback) [alias: tar.update]
+
+Add files to an archive if they are newer than the entry already in
+the tarball archive.
+
+The `fileList` is an array of paths to add to the tarball.  Adding a
+directory also adds its children recursively.
+
+An entry in `fileList` that starts with an `@` symbol is a tar archive
+whose entries will be added.  To add a file that starts with `@`,
+prepend it with `./`.
+
+The following options are supported:
+
+- `file` Required. Write the tarball archive to the specified
+  filename. [Alias: `f`]
+- `sync` Act synchronously.  If this is set, then any provided file
+  will be fully written after the call to `tar.c`.
+- `onwarn` A function that will get called with `(code, message, data)` for
+  any warnings encountered.  (See "Warnings and Errors")
+- `strict` Treat warnings as crash-worthy errors.  Default false.
+- `cwd` The current working directory for adding entries to the
+  archive.  Defaults to `process.cwd()`.  [Alias: `C`]
+- `prefix` A path portion to prefix onto the entries in the archive.
+- `gzip` Set to any truthy value to create a gzipped archive, or an
+  object with settings for `zlib.Gzip()` [Alias: `z`]
+- `filter` A function that gets called with `(path, stat)` for each
+  entry being added.  Return `true` to add the entry to the archive,
+  or `false` to omit it.
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+  `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`.  Note
+  that `mtime` is still included, because this is necessary for other
+  time-based operations.  Additionally, `mode` is set to a "reasonable
+  default" for most unix systems, based on a `umask` value of `0o22`.
+- `preservePaths` Allow absolute paths.  By default, `/` is stripped
+  from absolute paths. [Alias: `P`]
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+  Defaults to 16 MB.
+- `noDirRecurse` Do not recursively archive the contents of
+  directories. [Alias: `n`]
+- `follow` Set to true to pack the targets of symbolic links.  Without
+  this option, symbolic links are archived as such. [Alias: `L`, `h`]
+- `noPax` Suppress pax extended headers.  Note that this means that
+  long paths and linkpaths will be truncated, and large or negative
+  numeric values may be interpreted incorrectly.
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+  Note that this prevents using other mtime-based features like
+  `tar.update` or the `keepNewer` option with the resulting tar archive.
+  [Alias: `m`, `no-mtime`]
+- `mtime` Set to a `Date` object to force a specific `mtime` for
+  everything added to the archive.  Overridden by `noMtime`.
+
+### tar.r(options, fileList, callback) [alias: tar.replace]
+
+Add files to an existing archive.  Because later entries override
+earlier entries, this effectively replaces any existing entries.
+
+The `fileList` is an array of paths to add to the tarball.  Adding a
+directory also adds its children recursively.
+
+An entry in `fileList` that starts with an `@` symbol is a tar archive
+whose entries will be added.  To add a file that starts with `@`,
+prepend it with `./`.
+
+The following options are supported:
+
+- `file` Required. Write the tarball archive to the specified
+  filename. [Alias: `f`]
+- `sync` Act synchronously.  If this is set, then any provided file
+  will be fully written after the call to `tar.c`.
+- `onwarn` A function that will get called with `(code, message, data)` for
+  any warnings encountered.  (See "Warnings and Errors")
+- `strict` Treat warnings as crash-worthy errors.  Default false.
+- `cwd` The current working directory for adding entries to the
+  archive.  Defaults to `process.cwd()`.  [Alias: `C`]
+- `prefix` A path portion to prefix onto the entries in the archive.
+- `gzip` Set to any truthy value to create a gzipped archive, or an
+  object with settings for `zlib.Gzip()` [Alias: `z`]
+- `filter` A function that gets called with `(path, stat)` for each
+  entry being added.  Return `true` to add the entry to the archive,
+  or `false` to omit it.
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+  `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`.  Note
+  that `mtime` is still included, because this is necessary for other
+  time-based operations.  Additionally, `mode` is set to a "reasonable
+  default" for most unix systems, based on a `umask` value of `0o22`.
+- `preservePaths` Allow absolute paths.  By default, `/` is stripped
+  from absolute paths. [Alias: `P`]
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+  Defaults to 16 MB.
+- `noDirRecurse` Do not recursively archive the contents of
+  directories. [Alias: `n`]
+- `follow` Set to true to pack the targets of symbolic links.  Without
+  this option, symbolic links are archived as such. [Alias: `L`, `h`]
+- `noPax` Suppress pax extended headers.  Note that this means that
+  long paths and linkpaths will be truncated, and large or negative
+  numeric values may be interpreted incorrectly.
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+  Note that this prevents using other mtime-based features like
+  `tar.update` or the `keepNewer` option with the resulting tar archive.
+  [Alias: `m`, `no-mtime`]
+- `mtime` Set to a `Date` object to force a specific `mtime` for
+  everything added to the archive.  Overridden by `noMtime`.
+
+
+## Low-Level API
+
+### class tar.Pack
+
+A readable tar stream.
+
+Has all the standard readable stream interface stuff.  `'data'` and
+`'end'` events, `read()` method, `pause()` and `resume()`, etc.
+
+#### constructor(options)
+
+The following options are supported:
+
+- `onwarn` A function that will get called with `(code, message, data)` for
+  any warnings encountered.  (See "Warnings and Errors")
+- `strict` Treat warnings as crash-worthy errors.  Default false.
+- `cwd` The current working directory for creating the archive.
+  Defaults to `process.cwd()`.
+- `prefix` A path portion to prefix onto the entries in the archive.
+- `gzip` Set to any truthy value to create a gzipped archive, or an
+  object with settings for `zlib.Gzip()`
+- `filter` A function that gets called with `(path, stat)` for each
+  entry being added.  Return `true` to add the entry to the archive,
+  or `false` to omit it.
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+  `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`.  Note
+  that `mtime` is still included, because this is necessary for other
+  time-based operations.  Additionally, `mode` is set to a "reasonable
+  default" for most unix systems, based on a `umask` value of `0o22`.
+- `preservePaths` Allow absolute paths.  By default, `/` is stripped
+  from absolute paths.
+- `linkCache` A Map object containing the device and inode value for
+  any file whose nlink is > 1, to identify hard links.
+- `statCache` A Map object that caches calls `lstat`.
+- `readdirCache` A Map object that caches calls to `readdir`.
+- `jobs` A number specifying how many concurrent jobs to run.
+  Defaults to 4.
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+  Defaults to 16 MB.
+- `noDirRecurse` Do not recursively archive the contents of
+  directories.
+- `follow` Set to true to pack the targets of symbolic links.  Without
+  this option, symbolic links are archived as such.
+- `noPax` Suppress pax extended headers.  Note that this means that
+  long paths and linkpaths will be truncated, and large or negative
+  numeric values may be interpreted incorrectly.
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+  Note that this prevents using other mtime-based features like
+  `tar.update` or the `keepNewer` option with the resulting tar archive.
+- `mtime` Set to a `Date` object to force a specific `mtime` for
+  everything added to the archive.  Overridden by `noMtime`.
+
+#### add(path)
+
+Adds an entry to the archive.  Returns the Pack stream.
+
+#### write(path)
+
+Adds an entry to the archive.  Returns true if flushed.
+
+#### end()
+
+Finishes the archive.
+
+### class tar.Pack.Sync
+
+Synchronous version of `tar.Pack`.
+
+### class tar.Unpack
+
+A writable stream that unpacks a tar archive onto the file system.
+
+All the normal writable stream stuff is supported.  `write()` and
+`end()` methods, `'drain'` events, etc.
+
+Note that all directories that are created will be forced to be
+writable, readable, and listable by their owner, to avoid cases where
+a directory prevents extraction of child entries by virtue of its
+mode.
+
+`'close'` is emitted when it's done writing stuff to the file system.
+
+Most unpack errors will cause a `warn` event to be emitted.  If the
+`cwd` is missing, or not a directory, then an error will be emitted.
+
+#### constructor(options)
+
+- `cwd` Extract files relative to the specified directory.  Defaults
+  to `process.cwd()`.  If provided, this must exist and must be a
+  directory.
+- `filter` A function that gets called with `(path, entry)` for each
+  entry being unpacked.  Return `true` to unpack the entry from the
+  archive, or `false` to skip it.
+- `newer` Set to true to keep the existing file on disk if it's newer
+  than the file in the archive.
+- `keep` Do not overwrite existing files.  In particular, if a file
+  appears more than once in an archive, later copies will not
+  overwrite earlier copies.
+- `preservePaths` Allow absolute paths, paths containing `..`, and
+  extracting through symbolic links.  By default, `/` is stripped from
+  absolute paths, `..` paths are not extracted, and any file whose
+  location would be modified by a symbolic link is not extracted.
+- `unlink` Unlink files before creating them.  Without this option,
+  tar overwrites existing files, which preserves existing hardlinks.
+  With this option, existing hardlinks will be broken, as will any
+  symlink that would affect the location of an extracted file.
+- `strip` Remove the specified number of leading path elements.
+  Pathnames with fewer elements will be silently skipped.  Note that
+  the pathname is edited after applying the filter, but before
+  security checks.
+- `onwarn` A function that will get called with `(code, message, data)` for
+  any warnings encountered.  (See "Warnings and Errors")
+- `umask` Filter the modes of entries like `process.umask()`.
+- `dmode` Default mode for directories
+- `fmode` Default mode for files
+- `dirCache` A Map object of which directories exist.
+- `maxMetaEntrySize` The maximum size of meta entries that is
+  supported.  Defaults to 1 MB.
+- `preserveOwner` If true, tar will set the `uid` and `gid` of
+  extracted entries to the `uid` and `gid` fields in the archive.
+  This defaults to true when run as root, and false otherwise.  If
+  false, then files and directories will be set with the owner and
+  group of the user running the process.  This is similar to `-p` in
+  `tar(1)`, but ACLs and other system-specific data is never unpacked
+  in this implementation, and modes are set by default already.
+- `win32` True if on a windows platform.  Causes behavior where
+  filenames containing `<|>?` chars are converted to
+  windows-compatible values while being unpacked.
+- `uid` Set to a number to force ownership of all extracted files and
+  folders, and all implicitly created directories, to be owned by the
+  specified user id, regardless of the `uid` field in the archive.
+  Cannot be used along with `preserveOwner`.  Requires also setting a
+  `gid` option.
+- `gid` Set to a number to force ownership of all extracted files and
+  folders, and all implicitly created directories, to be owned by the
+  specified group id, regardless of the `gid` field in the archive.
+  Cannot be used along with `preserveOwner`.  Requires also setting a
+  `uid` option.
+- `noMtime` Set to true to omit writing `mtime` value for extracted
+  entries.
+- `transform` Provide a function that takes an `entry` object, and
+  returns a stream, or any falsey value.  If a stream is provided,
+  then that stream's data will be written instead of the contents of
+  the archive entry.  If a falsey value is provided, then the entry is
+  written to disk as normal.  (To exclude items from extraction, use
+  the `filter` option described above.)
+- `strict` Treat warnings as crash-worthy errors.  Default false.
+- `onentry` A function that gets called with `(entry)` for each entry
+  that passes the filter.
+- `onwarn` A function that will get called with `(code, message, data)` for
+  any warnings encountered.  (See "Warnings and Errors")
+- `noChmod` Set to true to omit calling `fs.chmod()` to ensure that the
+  extracted file matches the entry mode.  This also suppresses the call to
+  `process.umask()` to determine the default umask value, since tar will
+  extract with whatever mode is provided, and let the process `umask` apply
+  normally.
+
+### class tar.Unpack.Sync
+
+Synchronous version of `tar.Unpack`.
+
+Note that using an asynchronous stream type with the `transform`
+option will cause undefined behavior in sync unpack streams.
+[MiniPass](http://npm.im/minipass)-based streams are designed for this
+use case.
+
+### class tar.Parse
+
+A writable stream that parses a tar archive stream.  All the standard
+writable stream stuff is supported.
+
+If the archive is gzipped, then tar will detect this and unzip it.
+
+Emits `'entry'` events with `tar.ReadEntry` objects, which are
+themselves readable streams that you can pipe wherever.
+
+Each `entry` will not emit until the one before it is flushed through,
+so make sure to either consume the data (with `on('data', ...)` or
+`.pipe(...)`) or throw it away with `.resume()` to keep the stream
+flowing.
+
+#### constructor(options)
+
+Returns an event emitter that emits `entry` events with
+`tar.ReadEntry` objects.
+
+The following options are supported:
+
+- `strict` Treat warnings as crash-worthy errors.  Default false.
+- `filter` A function that gets called with `(path, entry)` for each
+  entry being listed.  Return `true` to emit the entry from the
+  archive, or `false` to skip it.
+- `onentry` A function that gets called with `(entry)` for each entry
+  that passes the filter.
+- `onwarn` A function that will get called with `(code, message, data)` for
+  any warnings encountered.  (See "Warnings and Errors")
+
+#### abort(error)
+
+Stop all parsing activities.  This is called when there are zlib
+errors.  It also emits an unrecoverable warning with the error provided.
+
+### class tar.ReadEntry extends [MiniPass](http://npm.im/minipass)
+
+A representation of an entry that is being read out of a tar archive.
+
+It has the following fields:
+
+- `extended` The extended metadata object provided to the constructor.
+- `globalExtended` The global extended metadata object provided to the
+  constructor.
+- `remain` The number of bytes remaining to be written into the
+  stream.
+- `blockRemain` The number of 512-byte blocks remaining to be written
+  into the stream.
+- `ignore` Whether this entry should be ignored.
+- `meta` True if this represents metadata about the next entry, false
+  if it represents a filesystem object.
+- All the fields from the header, extended header, and global extended
+  header are added to the ReadEntry object.  So it has `path`, `type`,
+  `size`, `mode`, and so on.
+
+#### constructor(header, extended, globalExtended)
+
+Create a new ReadEntry object with the specified header, extended
+header, and global extended header values.
+
+### class tar.WriteEntry extends [MiniPass](http://npm.im/minipass)
+
+A representation of an entry that is being written from the file
+system into a tar archive.
+
+Emits data for the Header, and for the Pax Extended Header if one is
+required, as well as any body data.
+
+Creating a WriteEntry for a directory does not also create
+WriteEntry objects for all of the directory contents.
+
+It has the following fields:
+
+- `path` The path field that will be written to the archive.  By
+  default, this is also the path from the cwd to the file system
+  object.
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+  `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`.  Note
+  that `mtime` is still included, because this is necessary for other
+  time-based operations.  Additionally, `mode` is set to a "reasonable
+  default" for most unix systems, based on a `umask` value of `0o22`.
+- `myuid` If supported, the uid of the user running the current
+  process.
+- `myuser` The `env.USER` string if set, or `''`.  Set as the entry
+  `uname` field if the file's `uid` matches `this.myuid`.
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+  Defaults to 1 MB.
+- `linkCache` A Map object containing the device and inode value for
+  any file whose nlink is > 1, to identify hard links.
+- `statCache` A Map object that caches calls `lstat`.
+- `preservePaths` Allow absolute paths.  By default, `/` is stripped
+  from absolute paths.
+- `cwd` The current working directory for creating the archive.
+  Defaults to `process.cwd()`.
+- `absolute` The absolute path to the entry on the filesystem.  By
+  default, this is `path.resolve(this.cwd, this.path)`, but it can be
+  overridden explicitly.
+- `strict` Treat warnings as crash-worthy errors.  Default false.
+- `win32` True if on a windows platform.  Causes behavior where paths
+  replace `\` with `/` and filenames containing the windows-compatible
+  forms of `<|>?:` characters are converted to actual `<|>?:` characters
+  in the archive.
+- `noPax` Suppress pax extended headers.  Note that this means that
+  long paths and linkpaths will be truncated, and large or negative
+  numeric values may be interpreted incorrectly.
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+  Note that this prevents using other mtime-based features like
+  `tar.update` or the `keepNewer` option with the resulting tar archive.
+
+
+#### constructor(path, options)
+
+`path` is the path of the entry as it is written in the archive.
+
+The following options are supported:
+
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+  `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`.  Note
+  that `mtime` is still included, because this is necessary for other
+  time-based operations.  Additionally, `mode` is set to a "reasonable
+  default" for most unix systems, based on a `umask` value of `0o22`.
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+  Defaults to 1 MB.
+- `linkCache` A Map object containing the device and inode value for
+  any file whose nlink is > 1, to identify hard links.
+- `statCache` A Map object that caches calls `lstat`.
+- `preservePaths` Allow absolute paths.  By default, `/` is stripped
+  from absolute paths.
+- `cwd` The current working directory for creating the archive.
+  Defaults to `process.cwd()`.
+- `absolute` The absolute path to the entry on the filesystem.  By
+  default, this is `path.resolve(this.cwd, this.path)`, but it can be
+  overridden explicitly.
+- `strict` Treat warnings as crash-worthy errors.  Default false.
+- `win32` True if on a windows platform.  Causes behavior where paths
+  replace `\` with `/`.
+- `onwarn` A function that will get called with `(code, message, data)` for
+  any warnings encountered.  (See "Warnings and Errors")
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+  Note that this prevents using other mtime-based features like
+  `tar.update` or the `keepNewer` option with the resulting tar archive.
+- `umask` Set to restrict the modes on the entries in the archive,
+  somewhat like how umask works on file creation.  Defaults to
+  `process.umask()` on unix systems, or `0o22` on Windows.
+
+#### warn(message, data)
+
+If strict, emit an error with the provided message.
+
+Othewise, emit a `'warn'` event with the provided message and data.
+
+### class tar.WriteEntry.Sync
+
+Synchronous version of tar.WriteEntry
+
+### class tar.WriteEntry.Tar
+
+A version of tar.WriteEntry that gets its data from a tar.ReadEntry
+instead of from the filesystem.
+
+#### constructor(readEntry, options)
+
+`readEntry` is the entry being read out of another archive.
+
+The following options are supported:
+
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+  `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`.  Note
+  that `mtime` is still included, because this is necessary for other
+  time-based operations.  Additionally, `mode` is set to a "reasonable
+  default" for most unix systems, based on a `umask` value of `0o22`.
+- `preservePaths` Allow absolute paths.  By default, `/` is stripped
+  from absolute paths.
+- `strict` Treat warnings as crash-worthy errors.  Default false.
+- `onwarn` A function that will get called with `(code, message, data)` for
+  any warnings encountered.  (See "Warnings and Errors")
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+  Note that this prevents using other mtime-based features like
+  `tar.update` or the `keepNewer` option with the resulting tar archive.
+
+### class tar.Header
+
+A class for reading and writing header blocks.
+
+It has the following fields:
+
+- `nullBlock` True if decoding a block which is entirely composed of
+  `0x00` null bytes.  (Useful because tar files are terminated by
+  at least 2 null blocks.)
+- `cksumValid` True if the checksum in the header is valid, false
+  otherwise.
+- `needPax` True if the values, as encoded, will require a Pax
+  extended header.
+- `path` The path of the entry.
+- `mode` The 4 lowest-order octal digits of the file mode.  That is,
+  read/write/execute permissions for world, group, and owner, and the
+  setuid, setgid, and sticky bits.
+- `uid` Numeric user id of the file owner
+- `gid` Numeric group id of the file owner
+- `size` Size of the file in bytes
+- `mtime` Modified time of the file
+- `cksum` The checksum of the header.  This is generated by adding all
+  the bytes of the header block, treating the checksum field itself as
+  all ascii space characters (that is, `0x20`).
+- `type` The human-readable name of the type of entry this represents,
+  or the alphanumeric key if unknown.
+- `typeKey` The alphanumeric key for the type of entry this header
+  represents.
+- `linkpath` The target of Link and SymbolicLink entries.
+- `uname` Human-readable user name of the file owner
+- `gname` Human-readable group name of the file owner
+- `devmaj` The major portion of the device number.  Always `0` for
+  files, directories, and links.
+- `devmin` The minor portion of the device number.  Always `0` for
+  files, directories, and links.
+- `atime` File access time.
+- `ctime` File change time.
+
+#### constructor(data, [offset=0])
+
+`data` is optional.  It is either a Buffer that should be interpreted
+as a tar Header starting at the specified offset and continuing for
+512 bytes, or a data object of keys and values to set on the header
+object, and eventually encode as a tar Header.
+
+#### decode(block, offset)
+
+Decode the provided buffer starting at the specified offset.
+
+Buffer length must be greater than 512 bytes.
+
+#### set(data)
+
+Set the fields in the data object.
+
+#### encode(buffer, offset)
+
+Encode the header fields into the buffer at the specified offset.
+
+Returns `this.needPax` to indicate whether a Pax Extended Header is
+required to properly encode the specified data.
+
+### class tar.Pax
+
+An object representing a set of key-value pairs in an Pax extended
+header entry.
+
+It has the following fields.  Where the same name is used, they have
+the same semantics as the tar.Header field of the same name.
+
+- `global` True if this represents a global extended header, or false
+  if it is for a single entry.
+- `atime`
+- `charset`
+- `comment`
+- `ctime`
+- `gid`
+- `gname`
+- `linkpath`
+- `mtime`
+- `path`
+- `size`
+- `uid`
+- `uname`
+- `dev`
+- `ino`
+- `nlink`
+
+#### constructor(object, global)
+
+Set the fields set in the object.  `global` is a boolean that defaults
+to false.
+
+#### encode()
+
+Return a Buffer containing the header and body for the Pax extended
+header entry, or `null` if there is nothing to encode.
+
+#### encodeBody()
+
+Return a string representing the body of the pax extended header
+entry.
+
+#### encodeField(fieldName)
+
+Return a string representing the key/value encoding for the specified
+fieldName, or `''` if the field is unset.
+
+### tar.Pax.parse(string, extended, global)
+
+Return a new Pax object created by parsing the contents of the string
+provided.
+
+If the `extended` object is set, then also add the fields from that
+object.  (This is necessary because multiple metadata entries can
+occur in sequence.)
+
+### tar.types
+
+A translation table for the `type` field in tar headers.
+
+#### tar.types.name.get(code)
+
+Get the human-readable name for a given alphanumeric code.
+
+#### tar.types.code.get(name)
+
+Get the alphanumeric code for a given human-readable name.
diff --git a/node_modules/tar/index.js b/node_modules/tar/index.js
new file mode 100644
index 0000000..c9ae06e
--- /dev/null
+++ b/node_modules/tar/index.js
@@ -0,0 +1,18 @@
+'use strict'
+
+// high-level commands
+exports.c = exports.create = require('./lib/create.js')
+exports.r = exports.replace = require('./lib/replace.js')
+exports.t = exports.list = require('./lib/list.js')
+exports.u = exports.update = require('./lib/update.js')
+exports.x = exports.extract = require('./lib/extract.js')
+
+// classes
+exports.Pack = require('./lib/pack.js')
+exports.Unpack = require('./lib/unpack.js')
+exports.Parse = require('./lib/parse.js')
+exports.ReadEntry = require('./lib/read-entry.js')
+exports.WriteEntry = require('./lib/write-entry.js')
+exports.Header = require('./lib/header.js')
+exports.Pax = require('./lib/pax.js')
+exports.types = require('./lib/types.js')
diff --git a/node_modules/tar/lib/create.js b/node_modules/tar/lib/create.js
new file mode 100644
index 0000000..9c860d4
--- /dev/null
+++ b/node_modules/tar/lib/create.js
@@ -0,0 +1,111 @@
+'use strict'
+
+// tar -c
+const hlo = require('./high-level-opt.js')
+
+const Pack = require('./pack.js')
+const fsm = require('fs-minipass')
+const t = require('./list.js')
+const path = require('path')
+
+module.exports = (opt_, files, cb) => {
+  if (typeof files === 'function') {
+    cb = files
+  }
+
+  if (Array.isArray(opt_)) {
+    files = opt_, opt_ = {}
+  }
+
+  if (!files || !Array.isArray(files) || !files.length) {
+    throw new TypeError('no files or directories specified')
+  }
+
+  files = Array.from(files)
+
+  const opt = hlo(opt_)
+
+  if (opt.sync && typeof cb === 'function') {
+    throw new TypeError('callback not supported for sync tar functions')
+  }
+
+  if (!opt.file && typeof cb === 'function') {
+    throw new TypeError('callback only supported with file option')
+  }
+
+  return opt.file && opt.sync ? createFileSync(opt, files)
+    : opt.file ? createFile(opt, files, cb)
+    : opt.sync ? createSync(opt, files)
+    : create(opt, files)
+}
+
+const createFileSync = (opt, files) => {
+  const p = new Pack.Sync(opt)
+  const stream = new fsm.WriteStreamSync(opt.file, {
+    mode: opt.mode || 0o666,
+  })
+  p.pipe(stream)
+  addFilesSync(p, files)
+}
+
+const createFile = (opt, files, cb) => {
+  const p = new Pack(opt)
+  const stream = new fsm.WriteStream(opt.file, {
+    mode: opt.mode || 0o666,
+  })
+  p.pipe(stream)
+
+  const promise = new Promise((res, rej) => {
+    stream.on('error', rej)
+    stream.on('close', res)
+    p.on('error', rej)
+  })
+
+  addFilesAsync(p, files)
+
+  return cb ? promise.then(cb, cb) : promise
+}
+
+const addFilesSync = (p, files) => {
+  files.forEach(file => {
+    if (file.charAt(0) === '@') {
+      t({
+        file: path.resolve(p.cwd, file.slice(1)),
+        sync: true,
+        noResume: true,
+        onentry: entry => p.add(entry),
+      })
+    } else {
+      p.add(file)
+    }
+  })
+  p.end()
+}
+
+const addFilesAsync = (p, files) => {
+  while (files.length) {
+    const file = files.shift()
+    if (file.charAt(0) === '@') {
+      return t({
+        file: path.resolve(p.cwd, file.slice(1)),
+        noResume: true,
+        onentry: entry => p.add(entry),
+      }).then(_ => addFilesAsync(p, files))
+    } else {
+      p.add(file)
+    }
+  }
+  p.end()
+}
+
+const createSync = (opt, files) => {
+  const p = new Pack.Sync(opt)
+  addFilesSync(p, files)
+  return p
+}
+
+const create = (opt, files) => {
+  const p = new Pack(opt)
+  addFilesAsync(p, files)
+  return p
+}
diff --git a/node_modules/tar/lib/extract.js b/node_modules/tar/lib/extract.js
new file mode 100644
index 0000000..5476798
--- /dev/null
+++ b/node_modules/tar/lib/extract.js
@@ -0,0 +1,113 @@
+'use strict'
+
+// tar -x
+const hlo = require('./high-level-opt.js')
+const Unpack = require('./unpack.js')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const path = require('path')
+const stripSlash = require('./strip-trailing-slashes.js')
+
+module.exports = (opt_, files, cb) => {
+  if (typeof opt_ === 'function') {
+    cb = opt_, files = null, opt_ = {}
+  } else if (Array.isArray(opt_)) {
+    files = opt_, opt_ = {}
+  }
+
+  if (typeof files === 'function') {
+    cb = files, files = null
+  }
+
+  if (!files) {
+    files = []
+  } else {
+    files = Array.from(files)
+  }
+
+  const opt = hlo(opt_)
+
+  if (opt.sync && typeof cb === 'function') {
+    throw new TypeError('callback not supported for sync tar functions')
+  }
+
+  if (!opt.file && typeof cb === 'function') {
+    throw new TypeError('callback only supported with file option')
+  }
+
+  if (files.length) {
+    filesFilter(opt, files)
+  }
+
+  return opt.file && opt.sync ? extractFileSync(opt)
+    : opt.file ? extractFile(opt, cb)
+    : opt.sync ? extractSync(opt)
+    : extract(opt)
+}
+
+// construct a filter that limits the file entries listed
+// include child entries if a dir is included
+const filesFilter = (opt, files) => {
+  const map = new Map(files.map(f => [stripSlash(f), true]))
+  const filter = opt.filter
+
+  const mapHas = (file, r) => {
+    const root = r || path.parse(file).root || '.'
+    const ret = file === root ? false
+      : map.has(file) ? map.get(file)
+      : mapHas(path.dirname(file), root)
+
+    map.set(file, ret)
+    return ret
+  }
+
+  opt.filter = filter
+    ? (file, entry) => filter(file, entry) && mapHas(stripSlash(file))
+    : file => mapHas(stripSlash(file))
+}
+
+const extractFileSync = opt => {
+  const u = new Unpack.Sync(opt)
+
+  const file = opt.file
+  const stat = fs.statSync(file)
+  // This trades a zero-byte read() syscall for a stat
+  // However, it will usually result in less memory allocation
+  const readSize = opt.maxReadSize || 16 * 1024 * 1024
+  const stream = new fsm.ReadStreamSync(file, {
+    readSize: readSize,
+    size: stat.size,
+  })
+  stream.pipe(u)
+}
+
+const extractFile = (opt, cb) => {
+  const u = new Unpack(opt)
+  const readSize = opt.maxReadSize || 16 * 1024 * 1024
+
+  const file = opt.file
+  const p = new Promise((resolve, reject) => {
+    u.on('error', reject)
+    u.on('close', resolve)
+
+    // This trades a zero-byte read() syscall for a stat
+    // However, it will usually result in less memory allocation
+    fs.stat(file, (er, stat) => {
+      if (er) {
+        reject(er)
+      } else {
+        const stream = new fsm.ReadStream(file, {
+          readSize: readSize,
+          size: stat.size,
+        })
+        stream.on('error', reject)
+        stream.pipe(u)
+      }
+    })
+  })
+  return cb ? p.then(cb, cb) : p
+}
+
+const extractSync = opt => new Unpack.Sync(opt)
+
+const extract = opt => new Unpack(opt)
diff --git a/node_modules/tar/lib/get-write-flag.js b/node_modules/tar/lib/get-write-flag.js
new file mode 100644
index 0000000..e869599
--- /dev/null
+++ b/node_modules/tar/lib/get-write-flag.js
@@ -0,0 +1,20 @@
+// Get the appropriate flag to use for creating files
+// We use fmap on Windows platforms for files less than
+// 512kb.  This is a fairly low limit, but avoids making
+// things slower in some cases.  Since most of what this
+// library is used for is extracting tarballs of many
+// relatively small files in npm packages and the like,
+// it can be a big boost on Windows platforms.
+// Only supported in Node v12.9.0 and above.
+const platform = process.env.__FAKE_PLATFORM__ || process.platform
+const isWindows = platform === 'win32'
+const fs = global.__FAKE_TESTING_FS__ || require('fs')
+
+/* istanbul ignore next */
+const { O_CREAT, O_TRUNC, O_WRONLY, UV_FS_O_FILEMAP = 0 } = fs.constants
+
+const fMapEnabled = isWindows && !!UV_FS_O_FILEMAP
+const fMapLimit = 512 * 1024
+const fMapFlag = UV_FS_O_FILEMAP | O_TRUNC | O_CREAT | O_WRONLY
+module.exports = !fMapEnabled ? () => 'w'
+  : size => size < fMapLimit ? fMapFlag : 'w'
diff --git a/node_modules/tar/lib/header.js b/node_modules/tar/lib/header.js
new file mode 100644
index 0000000..411d5e4
--- /dev/null
+++ b/node_modules/tar/lib/header.js
@@ -0,0 +1,304 @@
+'use strict'
+// parse a 512-byte header block to a data object, or vice-versa
+// encode returns `true` if a pax extended header is needed, because
+// the data could not be faithfully encoded in a simple header.
+// (Also, check header.needPax to see if it needs a pax header.)
+
+const types = require('./types.js')
+const pathModule = require('path').posix
+const large = require('./large-numbers.js')
+
+const SLURP = Symbol('slurp')
+const TYPE = Symbol('type')
+
+class Header {
+  constructor (data, off, ex, gex) {
+    this.cksumValid = false
+    this.needPax = false
+    this.nullBlock = false
+
+    this.block = null
+    this.path = null
+    this.mode = null
+    this.uid = null
+    this.gid = null
+    this.size = null
+    this.mtime = null
+    this.cksum = null
+    this[TYPE] = '0'
+    this.linkpath = null
+    this.uname = null
+    this.gname = null
+    this.devmaj = 0
+    this.devmin = 0
+    this.atime = null
+    this.ctime = null
+
+    if (Buffer.isBuffer(data)) {
+      this.decode(data, off || 0, ex, gex)
+    } else if (data) {
+      this.set(data)
+    }
+  }
+
+  decode (buf, off, ex, gex) {
+    if (!off) {
+      off = 0
+    }
+
+    if (!buf || !(buf.length >= off + 512)) {
+      throw new Error('need 512 bytes for header')
+    }
+
+    this.path = decString(buf, off, 100)
+    this.mode = decNumber(buf, off + 100, 8)
+    this.uid = decNumber(buf, off + 108, 8)
+    this.gid = decNumber(buf, off + 116, 8)
+    this.size = decNumber(buf, off + 124, 12)
+    this.mtime = decDate(buf, off + 136, 12)
+    this.cksum = decNumber(buf, off + 148, 12)
+
+    // if we have extended or global extended headers, apply them now
+    // See https://github.com/npm/node-tar/pull/187
+    this[SLURP](ex)
+    this[SLURP](gex, true)
+
+    // old tar versions marked dirs as a file with a trailing /
+    this[TYPE] = decString(buf, off + 156, 1)
+    if (this[TYPE] === '') {
+      this[TYPE] = '0'
+    }
+    if (this[TYPE] === '0' && this.path.slice(-1) === '/') {
+      this[TYPE] = '5'
+    }
+
+    // tar implementations sometimes incorrectly put the stat(dir).size
+    // as the size in the tarball, even though Directory entries are
+    // not able to have any body at all.  In the very rare chance that
+    // it actually DOES have a body, we weren't going to do anything with
+    // it anyway, and it'll just be a warning about an invalid header.
+    if (this[TYPE] === '5') {
+      this.size = 0
+    }
+
+    this.linkpath = decString(buf, off + 157, 100)
+    if (buf.slice(off + 257, off + 265).toString() === 'ustar\u000000') {
+      this.uname = decString(buf, off + 265, 32)
+      this.gname = decString(buf, off + 297, 32)
+      this.devmaj = decNumber(buf, off + 329, 8)
+      this.devmin = decNumber(buf, off + 337, 8)
+      if (buf[off + 475] !== 0) {
+        // definitely a prefix, definitely >130 chars.
+        const prefix = decString(buf, off + 345, 155)
+        this.path = prefix + '/' + this.path
+      } else {
+        const prefix = decString(buf, off + 345, 130)
+        if (prefix) {
+          this.path = prefix + '/' + this.path
+        }
+        this.atime = decDate(buf, off + 476, 12)
+        this.ctime = decDate(buf, off + 488, 12)
+      }
+    }
+
+    let sum = 8 * 0x20
+    for (let i = off; i < off + 148; i++) {
+      sum += buf[i]
+    }
+
+    for (let i = off + 156; i < off + 512; i++) {
+      sum += buf[i]
+    }
+
+    this.cksumValid = sum === this.cksum
+    if (this.cksum === null && sum === 8 * 0x20) {
+      this.nullBlock = true
+    }
+  }
+
+  [SLURP] (ex, global) {
+    for (const k in ex) {
+      // we slurp in everything except for the path attribute in
+      // a global extended header, because that's weird.
+      if (ex[k] !== null && ex[k] !== undefined &&
+          !(global && k === 'path')) {
+        this[k] = ex[k]
+      }
+    }
+  }
+
+  encode (buf, off) {
+    if (!buf) {
+      buf = this.block = Buffer.alloc(512)
+      off = 0
+    }
+
+    if (!off) {
+      off = 0
+    }
+
+    if (!(buf.length >= off + 512)) {
+      throw new Error('need 512 bytes for header')
+    }
+
+    const prefixSize = this.ctime || this.atime ? 130 : 155
+    const split = splitPrefix(this.path || '', prefixSize)
+    const path = split[0]
+    const prefix = split[1]
+    this.needPax = split[2]
+
+    this.needPax = encString(buf, off, 100, path) || this.needPax
+    this.needPax = encNumber(buf, off + 100, 8, this.mode) || this.needPax
+    this.needPax = encNumber(buf, off + 108, 8, this.uid) || this.needPax
+    this.needPax = encNumber(buf, off + 116, 8, this.gid) || this.needPax
+    this.needPax = encNumber(buf, off + 124, 12, this.size) || this.needPax
+    this.needPax = encDate(buf, off + 136, 12, this.mtime) || this.needPax
+    buf[off + 156] = this[TYPE].charCodeAt(0)
+    this.needPax = encString(buf, off + 157, 100, this.linkpath) || this.needPax
+    buf.write('ustar\u000000', off + 257, 8)
+    this.needPax = encString(buf, off + 265, 32, this.uname) || this.needPax
+    this.needPax = encString(buf, off + 297, 32, this.gname) || this.needPax
+    this.needPax = encNumber(buf, off + 329, 8, this.devmaj) || this.needPax
+    this.needPax = encNumber(buf, off + 337, 8, this.devmin) || this.needPax
+    this.needPax = encString(buf, off + 345, prefixSize, prefix) || this.needPax
+    if (buf[off + 475] !== 0) {
+      this.needPax = encString(buf, off + 345, 155, prefix) || this.needPax
+    } else {
+      this.needPax = encString(buf, off + 345, 130, prefix) || this.needPax
+      this.needPax = encDate(buf, off + 476, 12, this.atime) || this.needPax
+      this.needPax = encDate(buf, off + 488, 12, this.ctime) || this.needPax
+    }
+
+    let sum = 8 * 0x20
+    for (let i = off; i < off + 148; i++) {
+      sum += buf[i]
+    }
+
+    for (let i = off + 156; i < off + 512; i++) {
+      sum += buf[i]
+    }
+
+    this.cksum = sum
+    encNumber(buf, off + 148, 8, this.cksum)
+    this.cksumValid = true
+
+    return this.needPax
+  }
+
+  set (data) {
+    for (const i in data) {
+      if (data[i] !== null && data[i] !== undefined) {
+        this[i] = data[i]
+      }
+    }
+  }
+
+  get type () {
+    return types.name.get(this[TYPE]) || this[TYPE]
+  }
+
+  get typeKey () {
+    return this[TYPE]
+  }
+
+  set type (type) {
+    if (types.code.has(type)) {
+      this[TYPE] = types.code.get(type)
+    } else {
+      this[TYPE] = type
+    }
+  }
+}
+
+const splitPrefix = (p, prefixSize) => {
+  const pathSize = 100
+  let pp = p
+  let prefix = ''
+  let ret
+  const root = pathModule.parse(p).root || '.'
+
+  if (Buffer.byteLength(pp) < pathSize) {
+    ret = [pp, prefix, false]
+  } else {
+    // first set prefix to the dir, and path to the base
+    prefix = pathModule.dirname(pp)
+    pp = pathModule.basename(pp)
+
+    do {
+      if (Buffer.byteLength(pp) <= pathSize &&
+          Buffer.byteLength(prefix) <= prefixSize) {
+        // both fit!
+        ret = [pp, prefix, false]
+      } else if (Buffer.byteLength(pp) > pathSize &&
+          Buffer.byteLength(prefix) <= prefixSize) {
+        // prefix fits in prefix, but path doesn't fit in path
+        ret = [pp.slice(0, pathSize - 1), prefix, true]
+      } else {
+        // make path take a bit from prefix
+        pp = pathModule.join(pathModule.basename(prefix), pp)
+        prefix = pathModule.dirname(prefix)
+      }
+    } while (prefix !== root && !ret)
+
+    // at this point, found no resolution, just truncate
+    if (!ret) {
+      ret = [p.slice(0, pathSize - 1), '', true]
+    }
+  }
+  return ret
+}
+
+const decString = (buf, off, size) =>
+  buf.slice(off, off + size).toString('utf8').replace(/\0.*/, '')
+
+const decDate = (buf, off, size) =>
+  numToDate(decNumber(buf, off, size))
+
+const numToDate = num => num === null ? null : new Date(num * 1000)
+
+const decNumber = (buf, off, size) =>
+  buf[off] & 0x80 ? large.parse(buf.slice(off, off + size))
+  : decSmallNumber(buf, off, size)
+
+const nanNull = value => isNaN(value) ? null : value
+
+const decSmallNumber = (buf, off, size) =>
+  nanNull(parseInt(
+    buf.slice(off, off + size)
+      .toString('utf8').replace(/\0.*$/, '').trim(), 8))
+
+// the maximum encodable as a null-terminated octal, by field size
+const MAXNUM = {
+  12: 0o77777777777,
+  8: 0o7777777,
+}
+
+const encNumber = (buf, off, size, number) =>
+  number === null ? false :
+  number > MAXNUM[size] || number < 0
+    ? (large.encode(number, buf.slice(off, off + size)), true)
+    : (encSmallNumber(buf, off, size, number), false)
+
+const encSmallNumber = (buf, off, size, number) =>
+  buf.write(octalString(number, size), off, size, 'ascii')
+
+const octalString = (number, size) =>
+  padOctal(Math.floor(number).toString(8), size)
+
+const padOctal = (string, size) =>
+  (string.length === size - 1 ? string
+  : new Array(size - string.length - 1).join('0') + string + ' ') + '\0'
+
+const encDate = (buf, off, size, date) =>
+  date === null ? false :
+  encNumber(buf, off, size, date.getTime() / 1000)
+
+// enough to fill the longest string we've got
+const NULLS = new Array(156).join('\0')
+// pad with nulls, return true if it's longer or non-ascii
+const encString = (buf, off, size, string) =>
+  string === null ? false :
+  (buf.write(string + NULLS, off, size, 'utf8'),
+  string.length !== Buffer.byteLength(string) || string.length > size)
+
+module.exports = Header
diff --git a/node_modules/tar/lib/high-level-opt.js b/node_modules/tar/lib/high-level-opt.js
new file mode 100644
index 0000000..40e4418
--- /dev/null
+++ b/node_modules/tar/lib/high-level-opt.js
@@ -0,0 +1,29 @@
+'use strict'
+
+// turn tar(1) style args like `C` into the more verbose things like `cwd`
+
+const argmap = new Map([
+  ['C', 'cwd'],
+  ['f', 'file'],
+  ['z', 'gzip'],
+  ['P', 'preservePaths'],
+  ['U', 'unlink'],
+  ['strip-components', 'strip'],
+  ['stripComponents', 'strip'],
+  ['keep-newer', 'newer'],
+  ['keepNewer', 'newer'],
+  ['keep-newer-files', 'newer'],
+  ['keepNewerFiles', 'newer'],
+  ['k', 'keep'],
+  ['keep-existing', 'keep'],
+  ['keepExisting', 'keep'],
+  ['m', 'noMtime'],
+  ['no-mtime', 'noMtime'],
+  ['p', 'preserveOwner'],
+  ['L', 'follow'],
+  ['h', 'follow'],
+])
+
+module.exports = opt => opt ? Object.keys(opt).map(k => [
+  argmap.has(k) ? argmap.get(k) : k, opt[k],
+]).reduce((set, kv) => (set[kv[0]] = kv[1], set), Object.create(null)) : {}
diff --git a/node_modules/tar/lib/large-numbers.js b/node_modules/tar/lib/large-numbers.js
new file mode 100644
index 0000000..b11e72d
--- /dev/null
+++ b/node_modules/tar/lib/large-numbers.js
@@ -0,0 +1,104 @@
+'use strict'
+// Tar can encode large and negative numbers using a leading byte of
+// 0xff for negative, and 0x80 for positive.
+
+const encode = (num, buf) => {
+  if (!Number.isSafeInteger(num)) {
+  // The number is so large that javascript cannot represent it with integer
+  // precision.
+    throw Error('cannot encode number outside of javascript safe integer range')
+  } else if (num < 0) {
+    encodeNegative(num, buf)
+  } else {
+    encodePositive(num, buf)
+  }
+  return buf
+}
+
+const encodePositive = (num, buf) => {
+  buf[0] = 0x80
+
+  for (var i = buf.length; i > 1; i--) {
+    buf[i - 1] = num & 0xff
+    num = Math.floor(num / 0x100)
+  }
+}
+
+const encodeNegative = (num, buf) => {
+  buf[0] = 0xff
+  var flipped = false
+  num = num * -1
+  for (var i = buf.length; i > 1; i--) {
+    var byte = num & 0xff
+    num = Math.floor(num / 0x100)
+    if (flipped) {
+      buf[i - 1] = onesComp(byte)
+    } else if (byte === 0) {
+      buf[i - 1] = 0
+    } else {
+      flipped = true
+      buf[i - 1] = twosComp(byte)
+    }
+  }
+}
+
+const parse = (buf) => {
+  const pre = buf[0]
+  const value = pre === 0x80 ? pos(buf.slice(1, buf.length))
+    : pre === 0xff ? twos(buf)
+    : null
+  if (value === null) {
+    throw Error('invalid base256 encoding')
+  }
+
+  if (!Number.isSafeInteger(value)) {
+  // The number is so large that javascript cannot represent it with integer
+  // precision.
+    throw Error('parsed number outside of javascript safe integer range')
+  }
+
+  return value
+}
+
+const twos = (buf) => {
+  var len = buf.length
+  var sum = 0
+  var flipped = false
+  for (var i = len - 1; i > -1; i--) {
+    var byte = buf[i]
+    var f
+    if (flipped) {
+      f = onesComp(byte)
+    } else if (byte === 0) {
+      f = byte
+    } else {
+      flipped = true
+      f = twosComp(byte)
+    }
+    if (f !== 0) {
+      sum -= f * Math.pow(256, len - i - 1)
+    }
+  }
+  return sum
+}
+
+const pos = (buf) => {
+  var len = buf.length
+  var sum = 0
+  for (var i = len - 1; i > -1; i--) {
+    var byte = buf[i]
+    if (byte !== 0) {
+      sum += byte * Math.pow(256, len - i - 1)
+    }
+  }
+  return sum
+}
+
+const onesComp = byte => (0xff ^ byte) & 0xff
+
+const twosComp = byte => ((0xff ^ byte) + 1) & 0xff
+
+module.exports = {
+  encode,
+  parse,
+}
diff --git a/node_modules/tar/lib/list.js b/node_modules/tar/lib/list.js
new file mode 100644
index 0000000..f2358c2
--- /dev/null
+++ b/node_modules/tar/lib/list.js
@@ -0,0 +1,139 @@
+'use strict'
+
+// XXX: This shares a lot in common with extract.js
+// maybe some DRY opportunity here?
+
+// tar -t
+const hlo = require('./high-level-opt.js')
+const Parser = require('./parse.js')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const path = require('path')
+const stripSlash = require('./strip-trailing-slashes.js')
+
+module.exports = (opt_, files, cb) => {
+  if (typeof opt_ === 'function') {
+    cb = opt_, files = null, opt_ = {}
+  } else if (Array.isArray(opt_)) {
+    files = opt_, opt_ = {}
+  }
+
+  if (typeof files === 'function') {
+    cb = files, files = null
+  }
+
+  if (!files) {
+    files = []
+  } else {
+    files = Array.from(files)
+  }
+
+  const opt = hlo(opt_)
+
+  if (opt.sync && typeof cb === 'function') {
+    throw new TypeError('callback not supported for sync tar functions')
+  }
+
+  if (!opt.file && typeof cb === 'function') {
+    throw new TypeError('callback only supported with file option')
+  }
+
+  if (files.length) {
+    filesFilter(opt, files)
+  }
+
+  if (!opt.noResume) {
+    onentryFunction(opt)
+  }
+
+  return opt.file && opt.sync ? listFileSync(opt)
+    : opt.file ? listFile(opt, cb)
+    : list(opt)
+}
+
+const onentryFunction = opt => {
+  const onentry = opt.onentry
+  opt.onentry = onentry ? e => {
+    onentry(e)
+    e.resume()
+  } : e => e.resume()
+}
+
+// construct a filter that limits the file entries listed
+// include child entries if a dir is included
+const filesFilter = (opt, files) => {
+  const map = new Map(files.map(f => [stripSlash(f), true]))
+  const filter = opt.filter
+
+  const mapHas = (file, r) => {
+    const root = r || path.parse(file).root || '.'
+    const ret = file === root ? false
+      : map.has(file) ? map.get(file)
+      : mapHas(path.dirname(file), root)
+
+    map.set(file, ret)
+    return ret
+  }
+
+  opt.filter = filter
+    ? (file, entry) => filter(file, entry) && mapHas(stripSlash(file))
+    : file => mapHas(stripSlash(file))
+}
+
+const listFileSync = opt => {
+  const p = list(opt)
+  const file = opt.file
+  let threw = true
+  let fd
+  try {
+    const stat = fs.statSync(file)
+    const readSize = opt.maxReadSize || 16 * 1024 * 1024
+    if (stat.size < readSize) {
+      p.end(fs.readFileSync(file))
+    } else {
+      let pos = 0
+      const buf = Buffer.allocUnsafe(readSize)
+      fd = fs.openSync(file, 'r')
+      while (pos < stat.size) {
+        const bytesRead = fs.readSync(fd, buf, 0, readSize, pos)
+        pos += bytesRead
+        p.write(buf.slice(0, bytesRead))
+      }
+      p.end()
+    }
+    threw = false
+  } finally {
+    if (threw && fd) {
+      try {
+        fs.closeSync(fd)
+      } catch (er) {}
+    }
+  }
+}
+
+const listFile = (opt, cb) => {
+  const parse = new Parser(opt)
+  const readSize = opt.maxReadSize || 16 * 1024 * 1024
+
+  const file = opt.file
+  const p = new Promise((resolve, reject) => {
+    parse.on('error', reject)
+    parse.on('end', resolve)
+
+    fs.stat(file, (er, stat) => {
+      if (er) {
+        reject(er)
+      } else {
+        const stream = new fsm.ReadStream(file, {
+          readSize: readSize,
+          size: stat.size,
+        })
+        stream.on('error', reject)
+        stream.pipe(parse)
+      }
+    })
+  })
+  return cb ? p.then(cb, cb) : p
+}
+
+const list = opt => new Parser(opt)
diff --git a/node_modules/tar/lib/mkdir.js b/node_modules/tar/lib/mkdir.js
new file mode 100644
index 0000000..8ee8de7
--- /dev/null
+++ b/node_modules/tar/lib/mkdir.js
@@ -0,0 +1,229 @@
+'use strict'
+// wrapper around mkdirp for tar's needs.
+
+// TODO: This should probably be a class, not functionally
+// passing around state in a gazillion args.
+
+const mkdirp = require('mkdirp')
+const fs = require('fs')
+const path = require('path')
+const chownr = require('chownr')
+const normPath = require('./normalize-windows-path.js')
+
+class SymlinkError extends Error {
+  constructor (symlink, path) {
+    super('Cannot extract through symbolic link')
+    this.path = path
+    this.symlink = symlink
+  }
+
+  get name () {
+    return 'SylinkError'
+  }
+}
+
+class CwdError extends Error {
+  constructor (path, code) {
+    super(code + ': Cannot cd into \'' + path + '\'')
+    this.path = path
+    this.code = code
+  }
+
+  get name () {
+    return 'CwdError'
+  }
+}
+
+const cGet = (cache, key) => cache.get(normPath(key))
+const cSet = (cache, key, val) => cache.set(normPath(key), val)
+
+const checkCwd = (dir, cb) => {
+  fs.stat(dir, (er, st) => {
+    if (er || !st.isDirectory()) {
+      er = new CwdError(dir, er && er.code || 'ENOTDIR')
+    }
+    cb(er)
+  })
+}
+
+module.exports = (dir, opt, cb) => {
+  dir = normPath(dir)
+
+  // if there's any overlap between mask and mode,
+  // then we'll need an explicit chmod
+  const umask = opt.umask
+  const mode = opt.mode | 0o0700
+  const needChmod = (mode & umask) !== 0
+
+  const uid = opt.uid
+  const gid = opt.gid
+  const doChown = typeof uid === 'number' &&
+    typeof gid === 'number' &&
+    (uid !== opt.processUid || gid !== opt.processGid)
+
+  const preserve = opt.preserve
+  const unlink = opt.unlink
+  const cache = opt.cache
+  const cwd = normPath(opt.cwd)
+
+  const done = (er, created) => {
+    if (er) {
+      cb(er)
+    } else {
+      cSet(cache, dir, true)
+      if (created && doChown) {
+        chownr(created, uid, gid, er => done(er))
+      } else if (needChmod) {
+        fs.chmod(dir, mode, cb)
+      } else {
+        cb()
+      }
+    }
+  }
+
+  if (cache && cGet(cache, dir) === true) {
+    return done()
+  }
+
+  if (dir === cwd) {
+    return checkCwd(dir, done)
+  }
+
+  if (preserve) {
+    return mkdirp(dir, { mode }).then(made => done(null, made), done)
+  }
+
+  const sub = normPath(path.relative(cwd, dir))
+  const parts = sub.split('/')
+  mkdir_(cwd, parts, mode, cache, unlink, cwd, null, done)
+}
+
+const mkdir_ = (base, parts, mode, cache, unlink, cwd, created, cb) => {
+  if (!parts.length) {
+    return cb(null, created)
+  }
+  const p = parts.shift()
+  const part = normPath(path.resolve(base + '/' + p))
+  if (cGet(cache, part)) {
+    return mkdir_(part, parts, mode, cache, unlink, cwd, created, cb)
+  }
+  fs.mkdir(part, mode, onmkdir(part, parts, mode, cache, unlink, cwd, created, cb))
+}
+
+const onmkdir = (part, parts, mode, cache, unlink, cwd, created, cb) => er => {
+  if (er) {
+    fs.lstat(part, (statEr, st) => {
+      if (statEr) {
+        statEr.path = statEr.path && normPath(statEr.path)
+        cb(statEr)
+      } else if (st.isDirectory()) {
+        mkdir_(part, parts, mode, cache, unlink, cwd, created, cb)
+      } else if (unlink) {
+        fs.unlink(part, er => {
+          if (er) {
+            return cb(er)
+          }
+          fs.mkdir(part, mode, onmkdir(part, parts, mode, cache, unlink, cwd, created, cb))
+        })
+      } else if (st.isSymbolicLink()) {
+        return cb(new SymlinkError(part, part + '/' + parts.join('/')))
+      } else {
+        cb(er)
+      }
+    })
+  } else {
+    created = created || part
+    mkdir_(part, parts, mode, cache, unlink, cwd, created, cb)
+  }
+}
+
+const checkCwdSync = dir => {
+  let ok = false
+  let code = 'ENOTDIR'
+  try {
+    ok = fs.statSync(dir).isDirectory()
+  } catch (er) {
+    code = er.code
+  } finally {
+    if (!ok) {
+      throw new CwdError(dir, code)
+    }
+  }
+}
+
+module.exports.sync = (dir, opt) => {
+  dir = normPath(dir)
+  // if there's any overlap between mask and mode,
+  // then we'll need an explicit chmod
+  const umask = opt.umask
+  const mode = opt.mode | 0o0700
+  const needChmod = (mode & umask) !== 0
+
+  const uid = opt.uid
+  const gid = opt.gid
+  const doChown = typeof uid === 'number' &&
+    typeof gid === 'number' &&
+    (uid !== opt.processUid || gid !== opt.processGid)
+
+  const preserve = opt.preserve
+  const unlink = opt.unlink
+  const cache = opt.cache
+  const cwd = normPath(opt.cwd)
+
+  const done = (created) => {
+    cSet(cache, dir, true)
+    if (created && doChown) {
+      chownr.sync(created, uid, gid)
+    }
+    if (needChmod) {
+      fs.chmodSync(dir, mode)
+    }
+  }
+
+  if (cache && cGet(cache, dir) === true) {
+    return done()
+  }
+
+  if (dir === cwd) {
+    checkCwdSync(cwd)
+    return done()
+  }
+
+  if (preserve) {
+    return done(mkdirp.sync(dir, mode))
+  }
+
+  const sub = normPath(path.relative(cwd, dir))
+  const parts = sub.split('/')
+  let created = null
+  for (let p = parts.shift(), part = cwd;
+    p && (part += '/' + p);
+    p = parts.shift()) {
+    part = normPath(path.resolve(part))
+    if (cGet(cache, part)) {
+      continue
+    }
+
+    try {
+      fs.mkdirSync(part, mode)
+      created = created || part
+      cSet(cache, part, true)
+    } catch (er) {
+      const st = fs.lstatSync(part)
+      if (st.isDirectory()) {
+        cSet(cache, part, true)
+        continue
+      } else if (unlink) {
+        fs.unlinkSync(part)
+        fs.mkdirSync(part, mode)
+        created = created || part
+        cSet(cache, part, true)
+        continue
+      } else if (st.isSymbolicLink()) {
+        return new SymlinkError(part, part + '/' + parts.join('/'))
+      }
+    }
+  }
+
+  return done(created)
+}
diff --git a/node_modules/tar/lib/mode-fix.js b/node_modules/tar/lib/mode-fix.js
new file mode 100644
index 0000000..42f1d6e
--- /dev/null
+++ b/node_modules/tar/lib/mode-fix.js
@@ -0,0 +1,27 @@
+'use strict'
+module.exports = (mode, isDir, portable) => {
+  mode &= 0o7777
+
+  // in portable mode, use the minimum reasonable umask
+  // if this system creates files with 0o664 by default
+  // (as some linux distros do), then we'll write the
+  // archive with 0o644 instead.  Also, don't ever create
+  // a file that is not readable/writable by the owner.
+  if (portable) {
+    mode = (mode | 0o600) & ~0o22
+  }
+
+  // if dirs are readable, then they should be listable
+  if (isDir) {
+    if (mode & 0o400) {
+      mode |= 0o100
+    }
+    if (mode & 0o40) {
+      mode |= 0o10
+    }
+    if (mode & 0o4) {
+      mode |= 0o1
+    }
+  }
+  return mode
+}
diff --git a/node_modules/tar/lib/normalize-unicode.js b/node_modules/tar/lib/normalize-unicode.js
new file mode 100644
index 0000000..79e285a
--- /dev/null
+++ b/node_modules/tar/lib/normalize-unicode.js
@@ -0,0 +1,12 @@
+// warning: extremely hot code path.
+// This has been meticulously optimized for use
+// within npm install on large package trees.
+// Do not edit without careful benchmarking.
+const normalizeCache = Object.create(null)
+const { hasOwnProperty } = Object.prototype
+module.exports = s => {
+  if (!hasOwnProperty.call(normalizeCache, s)) {
+    normalizeCache[s] = s.normalize('NFD')
+  }
+  return normalizeCache[s]
+}
diff --git a/node_modules/tar/lib/normalize-windows-path.js b/node_modules/tar/lib/normalize-windows-path.js
new file mode 100644
index 0000000..eb13ba0
--- /dev/null
+++ b/node_modules/tar/lib/normalize-windows-path.js
@@ -0,0 +1,8 @@
+// on windows, either \ or / are valid directory separators.
+// on unix, \ is a valid character in filenames.
+// so, on windows, and only on windows, we replace all \ chars with /,
+// so that we can use / as our one and only directory separator char.
+
+const platform = process.env.TESTING_TAR_FAKE_PLATFORM || process.platform
+module.exports = platform !== 'win32' ? p => p
+  : p => p && p.replace(/\\/g, '/')
diff --git a/node_modules/tar/lib/pack.js b/node_modules/tar/lib/pack.js
new file mode 100644
index 0000000..d533a06
--- /dev/null
+++ b/node_modules/tar/lib/pack.js
@@ -0,0 +1,432 @@
+'use strict'
+
+// A readable tar stream creator
+// Technically, this is a transform stream that you write paths into,
+// and tar format comes out of.
+// The `add()` method is like `write()` but returns this,
+// and end() return `this` as well, so you can
+// do `new Pack(opt).add('files').add('dir').end().pipe(output)
+// You could also do something like:
+// streamOfPaths().pipe(new Pack()).pipe(new fs.WriteStream('out.tar'))
+
+class PackJob {
+  constructor (path, absolute) {
+    this.path = path || './'
+    this.absolute = absolute
+    this.entry = null
+    this.stat = null
+    this.readdir = null
+    this.pending = false
+    this.ignore = false
+    this.piped = false
+  }
+}
+
+const { Minipass } = require('minipass')
+const zlib = require('minizlib')
+const ReadEntry = require('./read-entry.js')
+const WriteEntry = require('./write-entry.js')
+const WriteEntrySync = WriteEntry.Sync
+const WriteEntryTar = WriteEntry.Tar
+const Yallist = require('yallist')
+const EOF = Buffer.alloc(1024)
+const ONSTAT = Symbol('onStat')
+const ENDED = Symbol('ended')
+const QUEUE = Symbol('queue')
+const CURRENT = Symbol('current')
+const PROCESS = Symbol('process')
+const PROCESSING = Symbol('processing')
+const PROCESSJOB = Symbol('processJob')
+const JOBS = Symbol('jobs')
+const JOBDONE = Symbol('jobDone')
+const ADDFSENTRY = Symbol('addFSEntry')
+const ADDTARENTRY = Symbol('addTarEntry')
+const STAT = Symbol('stat')
+const READDIR = Symbol('readdir')
+const ONREADDIR = Symbol('onreaddir')
+const PIPE = Symbol('pipe')
+const ENTRY = Symbol('entry')
+const ENTRYOPT = Symbol('entryOpt')
+const WRITEENTRYCLASS = Symbol('writeEntryClass')
+const WRITE = Symbol('write')
+const ONDRAIN = Symbol('ondrain')
+
+const fs = require('fs')
+const path = require('path')
+const warner = require('./warn-mixin.js')
+const normPath = require('./normalize-windows-path.js')
+
+const Pack = warner(class Pack extends Minipass {
+  constructor (opt) {
+    super(opt)
+    opt = opt || Object.create(null)
+    this.opt = opt
+    this.file = opt.file || ''
+    this.cwd = opt.cwd || process.cwd()
+    this.maxReadSize = opt.maxReadSize
+    this.preservePaths = !!opt.preservePaths
+    this.strict = !!opt.strict
+    this.noPax = !!opt.noPax
+    this.prefix = normPath(opt.prefix || '')
+    this.linkCache = opt.linkCache || new Map()
+    this.statCache = opt.statCache || new Map()
+    this.readdirCache = opt.readdirCache || new Map()
+
+    this[WRITEENTRYCLASS] = WriteEntry
+    if (typeof opt.onwarn === 'function') {
+      this.on('warn', opt.onwarn)
+    }
+
+    this.portable = !!opt.portable
+    this.zip = null
+
+    if (opt.gzip || opt.brotli) {
+      if (opt.gzip && opt.brotli) {
+        throw new TypeError('gzip and brotli are mutually exclusive')
+      }
+      if (opt.gzip) {
+        if (typeof opt.gzip !== 'object') {
+          opt.gzip = {}
+        }
+        if (this.portable) {
+          opt.gzip.portable = true
+        }
+        this.zip = new zlib.Gzip(opt.gzip)
+      }
+      if (opt.brotli) {
+        if (typeof opt.brotli !== 'object') {
+          opt.brotli = {}
+        }
+        this.zip = new zlib.BrotliCompress(opt.brotli)
+      }
+      this.zip.on('data', chunk => super.write(chunk))
+      this.zip.on('end', _ => super.end())
+      this.zip.on('drain', _ => this[ONDRAIN]())
+      this.on('resume', _ => this.zip.resume())
+    } else {
+      this.on('drain', this[ONDRAIN])
+    }
+
+    this.noDirRecurse = !!opt.noDirRecurse
+    this.follow = !!opt.follow
+    this.noMtime = !!opt.noMtime
+    this.mtime = opt.mtime || null
+
+    this.filter = typeof opt.filter === 'function' ? opt.filter : _ => true
+
+    this[QUEUE] = new Yallist()
+    this[JOBS] = 0
+    this.jobs = +opt.jobs || 4
+    this[PROCESSING] = false
+    this[ENDED] = false
+  }
+
+  [WRITE] (chunk) {
+    return super.write(chunk)
+  }
+
+  add (path) {
+    this.write(path)
+    return this
+  }
+
+  end (path) {
+    if (path) {
+      this.write(path)
+    }
+    this[ENDED] = true
+    this[PROCESS]()
+    return this
+  }
+
+  write (path) {
+    if (this[ENDED]) {
+      throw new Error('write after end')
+    }
+
+    if (path instanceof ReadEntry) {
+      this[ADDTARENTRY](path)
+    } else {
+      this[ADDFSENTRY](path)
+    }
+    return this.flowing
+  }
+
+  [ADDTARENTRY] (p) {
+    const absolute = normPath(path.resolve(this.cwd, p.path))
+    // in this case, we don't have to wait for the stat
+    if (!this.filter(p.path, p)) {
+      p.resume()
+    } else {
+      const job = new PackJob(p.path, absolute, false)
+      job.entry = new WriteEntryTar(p, this[ENTRYOPT](job))
+      job.entry.on('end', _ => this[JOBDONE](job))
+      this[JOBS] += 1
+      this[QUEUE].push(job)
+    }
+
+    this[PROCESS]()
+  }
+
+  [ADDFSENTRY] (p) {
+    const absolute = normPath(path.resolve(this.cwd, p))
+    this[QUEUE].push(new PackJob(p, absolute))
+    this[PROCESS]()
+  }
+
+  [STAT] (job) {
+    job.pending = true
+    this[JOBS] += 1
+    const stat = this.follow ? 'stat' : 'lstat'
+    fs[stat](job.absolute, (er, stat) => {
+      job.pending = false
+      this[JOBS] -= 1
+      if (er) {
+        this.emit('error', er)
+      } else {
+        this[ONSTAT](job, stat)
+      }
+    })
+  }
+
+  [ONSTAT] (job, stat) {
+    this.statCache.set(job.absolute, stat)
+    job.stat = stat
+
+    // now we have the stat, we can filter it.
+    if (!this.filter(job.path, stat)) {
+      job.ignore = true
+    }
+
+    this[PROCESS]()
+  }
+
+  [READDIR] (job) {
+    job.pending = true
+    this[JOBS] += 1
+    fs.readdir(job.absolute, (er, entries) => {
+      job.pending = false
+      this[JOBS] -= 1
+      if (er) {
+        return this.emit('error', er)
+      }
+      this[ONREADDIR](job, entries)
+    })
+  }
+
+  [ONREADDIR] (job, entries) {
+    this.readdirCache.set(job.absolute, entries)
+    job.readdir = entries
+    this[PROCESS]()
+  }
+
+  [PROCESS] () {
+    if (this[PROCESSING]) {
+      return
+    }
+
+    this[PROCESSING] = true
+    for (let w = this[QUEUE].head;
+      w !== null && this[JOBS] < this.jobs;
+      w = w.next) {
+      this[PROCESSJOB](w.value)
+      if (w.value.ignore) {
+        const p = w.next
+        this[QUEUE].removeNode(w)
+        w.next = p
+      }
+    }
+
+    this[PROCESSING] = false
+
+    if (this[ENDED] && !this[QUEUE].length && this[JOBS] === 0) {
+      if (this.zip) {
+        this.zip.end(EOF)
+      } else {
+        super.write(EOF)
+        super.end()
+      }
+    }
+  }
+
+  get [CURRENT] () {
+    return this[QUEUE] && this[QUEUE].head && this[QUEUE].head.value
+  }
+
+  [JOBDONE] (job) {
+    this[QUEUE].shift()
+    this[JOBS] -= 1
+    this[PROCESS]()
+  }
+
+  [PROCESSJOB] (job) {
+    if (job.pending) {
+      return
+    }
+
+    if (job.entry) {
+      if (job === this[CURRENT] && !job.piped) {
+        this[PIPE](job)
+      }
+      return
+    }
+
+    if (!job.stat) {
+      if (this.statCache.has(job.absolute)) {
+        this[ONSTAT](job, this.statCache.get(job.absolute))
+      } else {
+        this[STAT](job)
+      }
+    }
+    if (!job.stat) {
+      return
+    }
+
+    // filtered out!
+    if (job.ignore) {
+      return
+    }
+
+    if (!this.noDirRecurse && job.stat.isDirectory() && !job.readdir) {
+      if (this.readdirCache.has(job.absolute)) {
+        this[ONREADDIR](job, this.readdirCache.get(job.absolute))
+      } else {
+        this[READDIR](job)
+      }
+      if (!job.readdir) {
+        return
+      }
+    }
+
+    // we know it doesn't have an entry, because that got checked above
+    job.entry = this[ENTRY](job)
+    if (!job.entry) {
+      job.ignore = true
+      return
+    }
+
+    if (job === this[CURRENT] && !job.piped) {
+      this[PIPE](job)
+    }
+  }
+
+  [ENTRYOPT] (job) {
+    return {
+      onwarn: (code, msg, data) => this.warn(code, msg, data),
+      noPax: this.noPax,
+      cwd: this.cwd,
+      absolute: job.absolute,
+      preservePaths: this.preservePaths,
+      maxReadSize: this.maxReadSize,
+      strict: this.strict,
+      portable: this.portable,
+      linkCache: this.linkCache,
+      statCache: this.statCache,
+      noMtime: this.noMtime,
+      mtime: this.mtime,
+      prefix: this.prefix,
+    }
+  }
+
+  [ENTRY] (job) {
+    this[JOBS] += 1
+    try {
+      return new this[WRITEENTRYCLASS](job.path, this[ENTRYOPT](job))
+        .on('end', () => this[JOBDONE](job))
+        .on('error', er => this.emit('error', er))
+    } catch (er) {
+      this.emit('error', er)
+    }
+  }
+
+  [ONDRAIN] () {
+    if (this[CURRENT] && this[CURRENT].entry) {
+      this[CURRENT].entry.resume()
+    }
+  }
+
+  // like .pipe() but using super, because our write() is special
+  [PIPE] (job) {
+    job.piped = true
+
+    if (job.readdir) {
+      job.readdir.forEach(entry => {
+        const p = job.path
+        const base = p === './' ? '' : p.replace(/\/*$/, '/')
+        this[ADDFSENTRY](base + entry)
+      })
+    }
+
+    const source = job.entry
+    const zip = this.zip
+
+    if (zip) {
+      source.on('data', chunk => {
+        if (!zip.write(chunk)) {
+          source.pause()
+        }
+      })
+    } else {
+      source.on('data', chunk => {
+        if (!super.write(chunk)) {
+          source.pause()
+        }
+      })
+    }
+  }
+
+  pause () {
+    if (this.zip) {
+      this.zip.pause()
+    }
+    return super.pause()
+  }
+})
+
+class PackSync extends Pack {
+  constructor (opt) {
+    super(opt)
+    this[WRITEENTRYCLASS] = WriteEntrySync
+  }
+
+  // pause/resume are no-ops in sync streams.
+  pause () {}
+  resume () {}
+
+  [STAT] (job) {
+    const stat = this.follow ? 'statSync' : 'lstatSync'
+    this[ONSTAT](job, fs[stat](job.absolute))
+  }
+
+  [READDIR] (job, stat) {
+    this[ONREADDIR](job, fs.readdirSync(job.absolute))
+  }
+
+  // gotta get it all in this tick
+  [PIPE] (job) {
+    const source = job.entry
+    const zip = this.zip
+
+    if (job.readdir) {
+      job.readdir.forEach(entry => {
+        const p = job.path
+        const base = p === './' ? '' : p.replace(/\/*$/, '/')
+        this[ADDFSENTRY](base + entry)
+      })
+    }
+
+    if (zip) {
+      source.on('data', chunk => {
+        zip.write(chunk)
+      })
+    } else {
+      source.on('data', chunk => {
+        super[WRITE](chunk)
+      })
+    }
+  }
+}
+
+Pack.Sync = PackSync
+
+module.exports = Pack
diff --git a/node_modules/tar/lib/parse.js b/node_modules/tar/lib/parse.js
new file mode 100644
index 0000000..94e5304
--- /dev/null
+++ b/node_modules/tar/lib/parse.js
@@ -0,0 +1,552 @@
+'use strict'
+
+// this[BUFFER] is the remainder of a chunk if we're waiting for
+// the full 512 bytes of a header to come in.  We will Buffer.concat()
+// it to the next write(), which is a mem copy, but a small one.
+//
+// this[QUEUE] is a Yallist of entries that haven't been emitted
+// yet this can only get filled up if the user keeps write()ing after
+// a write() returns false, or does a write() with more than one entry
+//
+// We don't buffer chunks, we always parse them and either create an
+// entry, or push it into the active entry.  The ReadEntry class knows
+// to throw data away if .ignore=true
+//
+// Shift entry off the buffer when it emits 'end', and emit 'entry' for
+// the next one in the list.
+//
+// At any time, we're pushing body chunks into the entry at WRITEENTRY,
+// and waiting for 'end' on the entry at READENTRY
+//
+// ignored entries get .resume() called on them straight away
+
+const warner = require('./warn-mixin.js')
+const Header = require('./header.js')
+const EE = require('events')
+const Yallist = require('yallist')
+const maxMetaEntrySize = 1024 * 1024
+const Entry = require('./read-entry.js')
+const Pax = require('./pax.js')
+const zlib = require('minizlib')
+const { nextTick } = require('process')
+
+const gzipHeader = Buffer.from([0x1f, 0x8b])
+const STATE = Symbol('state')
+const WRITEENTRY = Symbol('writeEntry')
+const READENTRY = Symbol('readEntry')
+const NEXTENTRY = Symbol('nextEntry')
+const PROCESSENTRY = Symbol('processEntry')
+const EX = Symbol('extendedHeader')
+const GEX = Symbol('globalExtendedHeader')
+const META = Symbol('meta')
+const EMITMETA = Symbol('emitMeta')
+const BUFFER = Symbol('buffer')
+const QUEUE = Symbol('queue')
+const ENDED = Symbol('ended')
+const EMITTEDEND = Symbol('emittedEnd')
+const EMIT = Symbol('emit')
+const UNZIP = Symbol('unzip')
+const CONSUMECHUNK = Symbol('consumeChunk')
+const CONSUMECHUNKSUB = Symbol('consumeChunkSub')
+const CONSUMEBODY = Symbol('consumeBody')
+const CONSUMEMETA = Symbol('consumeMeta')
+const CONSUMEHEADER = Symbol('consumeHeader')
+const CONSUMING = Symbol('consuming')
+const BUFFERCONCAT = Symbol('bufferConcat')
+const MAYBEEND = Symbol('maybeEnd')
+const WRITING = Symbol('writing')
+const ABORTED = Symbol('aborted')
+const DONE = Symbol('onDone')
+const SAW_VALID_ENTRY = Symbol('sawValidEntry')
+const SAW_NULL_BLOCK = Symbol('sawNullBlock')
+const SAW_EOF = Symbol('sawEOF')
+const CLOSESTREAM = Symbol('closeStream')
+
+const noop = _ => true
+
+module.exports = warner(class Parser extends EE {
+  constructor (opt) {
+    opt = opt || {}
+    super(opt)
+
+    this.file = opt.file || ''
+
+    // set to boolean false when an entry starts.  1024 bytes of \0
+    // is technically a valid tarball, albeit a boring one.
+    this[SAW_VALID_ENTRY] = null
+
+    // these BADARCHIVE errors can't be detected early. listen on DONE.
+    this.on(DONE, _ => {
+      if (this[STATE] === 'begin' || this[SAW_VALID_ENTRY] === false) {
+        // either less than 1 block of data, or all entries were invalid.
+        // Either way, probably not even a tarball.
+        this.warn('TAR_BAD_ARCHIVE', 'Unrecognized archive format')
+      }
+    })
+
+    if (opt.ondone) {
+      this.on(DONE, opt.ondone)
+    } else {
+      this.on(DONE, _ => {
+        this.emit('prefinish')
+        this.emit('finish')
+        this.emit('end')
+      })
+    }
+
+    this.strict = !!opt.strict
+    this.maxMetaEntrySize = opt.maxMetaEntrySize || maxMetaEntrySize
+    this.filter = typeof opt.filter === 'function' ? opt.filter : noop
+    // Unlike gzip, brotli doesn't have any magic bytes to identify it
+    // Users need to explicitly tell us they're extracting a brotli file
+    // Or we infer from the file extension
+    const isTBR = (opt.file && (
+        opt.file.endsWith('.tar.br') || opt.file.endsWith('.tbr')))
+    // if it's a tbr file it MIGHT be brotli, but we don't know until
+    // we look at it and verify it's not a valid tar file.
+    this.brotli = !opt.gzip && opt.brotli !== undefined ? opt.brotli
+      : isTBR ? undefined
+      : false
+
+    // have to set this so that streams are ok piping into it
+    this.writable = true
+    this.readable = false
+
+    this[QUEUE] = new Yallist()
+    this[BUFFER] = null
+    this[READENTRY] = null
+    this[WRITEENTRY] = null
+    this[STATE] = 'begin'
+    this[META] = ''
+    this[EX] = null
+    this[GEX] = null
+    this[ENDED] = false
+    this[UNZIP] = null
+    this[ABORTED] = false
+    this[SAW_NULL_BLOCK] = false
+    this[SAW_EOF] = false
+
+    this.on('end', () => this[CLOSESTREAM]())
+
+    if (typeof opt.onwarn === 'function') {
+      this.on('warn', opt.onwarn)
+    }
+    if (typeof opt.onentry === 'function') {
+      this.on('entry', opt.onentry)
+    }
+  }
+
+  [CONSUMEHEADER] (chunk, position) {
+    if (this[SAW_VALID_ENTRY] === null) {
+      this[SAW_VALID_ENTRY] = false
+    }
+    let header
+    try {
+      header = new Header(chunk, position, this[EX], this[GEX])
+    } catch (er) {
+      return this.warn('TAR_ENTRY_INVALID', er)
+    }
+
+    if (header.nullBlock) {
+      if (this[SAW_NULL_BLOCK]) {
+        this[SAW_EOF] = true
+        // ending an archive with no entries.  pointless, but legal.
+        if (this[STATE] === 'begin') {
+          this[STATE] = 'header'
+        }
+        this[EMIT]('eof')
+      } else {
+        this[SAW_NULL_BLOCK] = true
+        this[EMIT]('nullBlock')
+      }
+    } else {
+      this[SAW_NULL_BLOCK] = false
+      if (!header.cksumValid) {
+        this.warn('TAR_ENTRY_INVALID', 'checksum failure', { header })
+      } else if (!header.path) {
+        this.warn('TAR_ENTRY_INVALID', 'path is required', { header })
+      } else {
+        const type = header.type
+        if (/^(Symbolic)?Link$/.test(type) && !header.linkpath) {
+          this.warn('TAR_ENTRY_INVALID', 'linkpath required', { header })
+        } else if (!/^(Symbolic)?Link$/.test(type) && header.linkpath) {
+          this.warn('TAR_ENTRY_INVALID', 'linkpath forbidden', { header })
+        } else {
+          const entry = this[WRITEENTRY] = new Entry(header, this[EX], this[GEX])
+
+          // we do this for meta & ignored entries as well, because they
+          // are still valid tar, or else we wouldn't know to ignore them
+          if (!this[SAW_VALID_ENTRY]) {
+            if (entry.remain) {
+              // this might be the one!
+              const onend = () => {
+                if (!entry.invalid) {
+                  this[SAW_VALID_ENTRY] = true
+                }
+              }
+              entry.on('end', onend)
+            } else {
+              this[SAW_VALID_ENTRY] = true
+            }
+          }
+
+          if (entry.meta) {
+            if (entry.size > this.maxMetaEntrySize) {
+              entry.ignore = true
+              this[EMIT]('ignoredEntry', entry)
+              this[STATE] = 'ignore'
+              entry.resume()
+            } else if (entry.size > 0) {
+              this[META] = ''
+              entry.on('data', c => this[META] += c)
+              this[STATE] = 'meta'
+            }
+          } else {
+            this[EX] = null
+            entry.ignore = entry.ignore || !this.filter(entry.path, entry)
+
+            if (entry.ignore) {
+              // probably valid, just not something we care about
+              this[EMIT]('ignoredEntry', entry)
+              this[STATE] = entry.remain ? 'ignore' : 'header'
+              entry.resume()
+            } else {
+              if (entry.remain) {
+                this[STATE] = 'body'
+              } else {
+                this[STATE] = 'header'
+                entry.end()
+              }
+
+              if (!this[READENTRY]) {
+                this[QUEUE].push(entry)
+                this[NEXTENTRY]()
+              } else {
+                this[QUEUE].push(entry)
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+
+  [CLOSESTREAM] () {
+    nextTick(() => this.emit('close'))
+  }
+
+  [PROCESSENTRY] (entry) {
+    let go = true
+
+    if (!entry) {
+      this[READENTRY] = null
+      go = false
+    } else if (Array.isArray(entry)) {
+      this.emit.apply(this, entry)
+    } else {
+      this[READENTRY] = entry
+      this.emit('entry', entry)
+      if (!entry.emittedEnd) {
+        entry.on('end', _ => this[NEXTENTRY]())
+        go = false
+      }
+    }
+
+    return go
+  }
+
+  [NEXTENTRY] () {
+    do {} while (this[PROCESSENTRY](this[QUEUE].shift()))
+
+    if (!this[QUEUE].length) {
+      // At this point, there's nothing in the queue, but we may have an
+      // entry which is being consumed (readEntry).
+      // If we don't, then we definitely can handle more data.
+      // If we do, and either it's flowing, or it has never had any data
+      // written to it, then it needs more.
+      // The only other possibility is that it has returned false from a
+      // write() call, so we wait for the next drain to continue.
+      const re = this[READENTRY]
+      const drainNow = !re || re.flowing || re.size === re.remain
+      if (drainNow) {
+        if (!this[WRITING]) {
+          this.emit('drain')
+        }
+      } else {
+        re.once('drain', _ => this.emit('drain'))
+      }
+    }
+  }
+
+  [CONSUMEBODY] (chunk, position) {
+    // write up to but no  more than writeEntry.blockRemain
+    const entry = this[WRITEENTRY]
+    const br = entry.blockRemain
+    const c = (br >= chunk.length && position === 0) ? chunk
+      : chunk.slice(position, position + br)
+
+    entry.write(c)
+
+    if (!entry.blockRemain) {
+      this[STATE] = 'header'
+      this[WRITEENTRY] = null
+      entry.end()
+    }
+
+    return c.length
+  }
+
+  [CONSUMEMETA] (chunk, position) {
+    const entry = this[WRITEENTRY]
+    const ret = this[CONSUMEBODY](chunk, position)
+
+    // if we finished, then the entry is reset
+    if (!this[WRITEENTRY]) {
+      this[EMITMETA](entry)
+    }
+
+    return ret
+  }
+
+  [EMIT] (ev, data, extra) {
+    if (!this[QUEUE].length && !this[READENTRY]) {
+      this.emit(ev, data, extra)
+    } else {
+      this[QUEUE].push([ev, data, extra])
+    }
+  }
+
+  [EMITMETA] (entry) {
+    this[EMIT]('meta', this[META])
+    switch (entry.type) {
+      case 'ExtendedHeader':
+      case 'OldExtendedHeader':
+        this[EX] = Pax.parse(this[META], this[EX], false)
+        break
+
+      case 'GlobalExtendedHeader':
+        this[GEX] = Pax.parse(this[META], this[GEX], true)
+        break
+
+      case 'NextFileHasLongPath':
+      case 'OldGnuLongPath':
+        this[EX] = this[EX] || Object.create(null)
+        this[EX].path = this[META].replace(/\0.*/, '')
+        break
+
+      case 'NextFileHasLongLinkpath':
+        this[EX] = this[EX] || Object.create(null)
+        this[EX].linkpath = this[META].replace(/\0.*/, '')
+        break
+
+      /* istanbul ignore next */
+      default: throw new Error('unknown meta: ' + entry.type)
+    }
+  }
+
+  abort (error) {
+    this[ABORTED] = true
+    this.emit('abort', error)
+    // always throws, even in non-strict mode
+    this.warn('TAR_ABORT', error, { recoverable: false })
+  }
+
+  write (chunk) {
+    if (this[ABORTED]) {
+      return
+    }
+
+    // first write, might be gzipped
+    const needSniff = this[UNZIP] === null ||
+      this.brotli === undefined && this[UNZIP] === false
+    if (needSniff && chunk) {
+      if (this[BUFFER]) {
+        chunk = Buffer.concat([this[BUFFER], chunk])
+        this[BUFFER] = null
+      }
+      if (chunk.length < gzipHeader.length) {
+        this[BUFFER] = chunk
+        return true
+      }
+
+      // look for gzip header
+      for (let i = 0; this[UNZIP] === null && i < gzipHeader.length; i++) {
+        if (chunk[i] !== gzipHeader[i]) {
+          this[UNZIP] = false
+        }
+      }
+
+      const maybeBrotli = this.brotli === undefined
+      if (this[UNZIP] === false && maybeBrotli) {
+        // read the first header to see if it's a valid tar file. If so,
+        // we can safely assume that it's not actually brotli, despite the
+        // .tbr or .tar.br file extension.
+        // if we ended before getting a full chunk, yes, def brotli
+        if (chunk.length < 512) {
+          if (this[ENDED]) {
+            this.brotli = true
+          } else {
+            this[BUFFER] = chunk
+            return true
+          }
+        } else {
+          // if it's tar, it's pretty reliably not brotli, chances of
+          // that happening are astronomical.
+          try {
+            new Header(chunk.slice(0, 512))
+            this.brotli = false
+          } catch (_) {
+            this.brotli = true
+          }
+        }
+      }
+
+      if (this[UNZIP] === null || (this[UNZIP] === false && this.brotli)) {
+        const ended = this[ENDED]
+        this[ENDED] = false
+        this[UNZIP] = this[UNZIP] === null
+          ? new zlib.Unzip()
+          : new zlib.BrotliDecompress()
+        this[UNZIP].on('data', chunk => this[CONSUMECHUNK](chunk))
+        this[UNZIP].on('error', er => this.abort(er))
+        this[UNZIP].on('end', _ => {
+          this[ENDED] = true
+          this[CONSUMECHUNK]()
+        })
+        this[WRITING] = true
+        const ret = this[UNZIP][ended ? 'end' : 'write'](chunk)
+        this[WRITING] = false
+        return ret
+      }
+    }
+
+    this[WRITING] = true
+    if (this[UNZIP]) {
+      this[UNZIP].write(chunk)
+    } else {
+      this[CONSUMECHUNK](chunk)
+    }
+    this[WRITING] = false
+
+    // return false if there's a queue, or if the current entry isn't flowing
+    const ret =
+      this[QUEUE].length ? false :
+      this[READENTRY] ? this[READENTRY].flowing :
+      true
+
+    // if we have no queue, then that means a clogged READENTRY
+    if (!ret && !this[QUEUE].length) {
+      this[READENTRY].once('drain', _ => this.emit('drain'))
+    }
+
+    return ret
+  }
+
+  [BUFFERCONCAT] (c) {
+    if (c && !this[ABORTED]) {
+      this[BUFFER] = this[BUFFER] ? Buffer.concat([this[BUFFER], c]) : c
+    }
+  }
+
+  [MAYBEEND] () {
+    if (this[ENDED] &&
+        !this[EMITTEDEND] &&
+        !this[ABORTED] &&
+        !this[CONSUMING]) {
+      this[EMITTEDEND] = true
+      const entry = this[WRITEENTRY]
+      if (entry && entry.blockRemain) {
+        // truncated, likely a damaged file
+        const have = this[BUFFER] ? this[BUFFER].length : 0
+        this.warn('TAR_BAD_ARCHIVE', `Truncated input (needed ${
+          entry.blockRemain} more bytes, only ${have} available)`, { entry })
+        if (this[BUFFER]) {
+          entry.write(this[BUFFER])
+        }
+        entry.end()
+      }
+      this[EMIT](DONE)
+    }
+  }
+
+  [CONSUMECHUNK] (chunk) {
+    if (this[CONSUMING]) {
+      this[BUFFERCONCAT](chunk)
+    } else if (!chunk && !this[BUFFER]) {
+      this[MAYBEEND]()
+    } else {
+      this[CONSUMING] = true
+      if (this[BUFFER]) {
+        this[BUFFERCONCAT](chunk)
+        const c = this[BUFFER]
+        this[BUFFER] = null
+        this[CONSUMECHUNKSUB](c)
+      } else {
+        this[CONSUMECHUNKSUB](chunk)
+      }
+
+      while (this[BUFFER] &&
+          this[BUFFER].length >= 512 &&
+          !this[ABORTED] &&
+          !this[SAW_EOF]) {
+        const c = this[BUFFER]
+        this[BUFFER] = null
+        this[CONSUMECHUNKSUB](c)
+      }
+      this[CONSUMING] = false
+    }
+
+    if (!this[BUFFER] || this[ENDED]) {
+      this[MAYBEEND]()
+    }
+  }
+
+  [CONSUMECHUNKSUB] (chunk) {
+    // we know that we are in CONSUMING mode, so anything written goes into
+    // the buffer.  Advance the position and put any remainder in the buffer.
+    let position = 0
+    const length = chunk.length
+    while (position + 512 <= length && !this[ABORTED] && !this[SAW_EOF]) {
+      switch (this[STATE]) {
+        case 'begin':
+        case 'header':
+          this[CONSUMEHEADER](chunk, position)
+          position += 512
+          break
+
+        case 'ignore':
+        case 'body':
+          position += this[CONSUMEBODY](chunk, position)
+          break
+
+        case 'meta':
+          position += this[CONSUMEMETA](chunk, position)
+          break
+
+        /* istanbul ignore next */
+        default:
+          throw new Error('invalid state: ' + this[STATE])
+      }
+    }
+
+    if (position < length) {
+      if (this[BUFFER]) {
+        this[BUFFER] = Buffer.concat([chunk.slice(position), this[BUFFER]])
+      } else {
+        this[BUFFER] = chunk.slice(position)
+      }
+    }
+  }
+
+  end (chunk) {
+    if (!this[ABORTED]) {
+      if (this[UNZIP]) {
+        this[UNZIP].end(chunk)
+      } else {
+        this[ENDED] = true
+        if (this.brotli === undefined) chunk = chunk || Buffer.alloc(0)
+        this.write(chunk)
+      }
+    }
+  }
+})
diff --git a/node_modules/tar/lib/path-reservations.js b/node_modules/tar/lib/path-reservations.js
new file mode 100644
index 0000000..8d349d5
--- /dev/null
+++ b/node_modules/tar/lib/path-reservations.js
@@ -0,0 +1,156 @@
+// A path exclusive reservation system
+// reserve([list, of, paths], fn)
+// When the fn is first in line for all its paths, it
+// is called with a cb that clears the reservation.
+//
+// Used by async unpack to avoid clobbering paths in use,
+// while still allowing maximal safe parallelization.
+
+const assert = require('assert')
+const normalize = require('./normalize-unicode.js')
+const stripSlashes = require('./strip-trailing-slashes.js')
+const { join } = require('path')
+
+const platform = process.env.TESTING_TAR_FAKE_PLATFORM || process.platform
+const isWindows = platform === 'win32'
+
+module.exports = () => {
+  // path => [function or Set]
+  // A Set object means a directory reservation
+  // A fn is a direct reservation on that path
+  const queues = new Map()
+
+  // fn => {paths:[path,...], dirs:[path, ...]}
+  const reservations = new Map()
+
+  // return a set of parent dirs for a given path
+  // '/a/b/c/d' -> ['/', '/a', '/a/b', '/a/b/c', '/a/b/c/d']
+  const getDirs = path => {
+    const dirs = path.split('/').slice(0, -1).reduce((set, path) => {
+      if (set.length) {
+        path = join(set[set.length - 1], path)
+      }
+      set.push(path || '/')
+      return set
+    }, [])
+    return dirs
+  }
+
+  // functions currently running
+  const running = new Set()
+
+  // return the queues for each path the function cares about
+  // fn => {paths, dirs}
+  const getQueues = fn => {
+    const res = reservations.get(fn)
+    /* istanbul ignore if - unpossible */
+    if (!res) {
+      throw new Error('function does not have any path reservations')
+    }
+    return {
+      paths: res.paths.map(path => queues.get(path)),
+      dirs: [...res.dirs].map(path => queues.get(path)),
+    }
+  }
+
+  // check if fn is first in line for all its paths, and is
+  // included in the first set for all its dir queues
+  const check = fn => {
+    const { paths, dirs } = getQueues(fn)
+    return paths.every(q => q[0] === fn) &&
+      dirs.every(q => q[0] instanceof Set && q[0].has(fn))
+  }
+
+  // run the function if it's first in line and not already running
+  const run = fn => {
+    if (running.has(fn) || !check(fn)) {
+      return false
+    }
+    running.add(fn)
+    fn(() => clear(fn))
+    return true
+  }
+
+  const clear = fn => {
+    if (!running.has(fn)) {
+      return false
+    }
+
+    const { paths, dirs } = reservations.get(fn)
+    const next = new Set()
+
+    paths.forEach(path => {
+      const q = queues.get(path)
+      assert.equal(q[0], fn)
+      if (q.length === 1) {
+        queues.delete(path)
+      } else {
+        q.shift()
+        if (typeof q[0] === 'function') {
+          next.add(q[0])
+        } else {
+          q[0].forEach(fn => next.add(fn))
+        }
+      }
+    })
+
+    dirs.forEach(dir => {
+      const q = queues.get(dir)
+      assert(q[0] instanceof Set)
+      if (q[0].size === 1 && q.length === 1) {
+        queues.delete(dir)
+      } else if (q[0].size === 1) {
+        q.shift()
+
+        // must be a function or else the Set would've been reused
+        next.add(q[0])
+      } else {
+        q[0].delete(fn)
+      }
+    })
+    running.delete(fn)
+
+    next.forEach(fn => run(fn))
+    return true
+  }
+
+  const reserve = (paths, fn) => {
+    // collide on matches across case and unicode normalization
+    // On windows, thanks to the magic of 8.3 shortnames, it is fundamentally
+    // impossible to determine whether two paths refer to the same thing on
+    // disk, without asking the kernel for a shortname.
+    // So, we just pretend that every path matches every other path here,
+    // effectively removing all parallelization on windows.
+    paths = isWindows ? ['win32 parallelization disabled'] : paths.map(p => {
+      // don't need normPath, because we skip this entirely for windows
+      return stripSlashes(join(normalize(p))).toLowerCase()
+    })
+
+    const dirs = new Set(
+      paths.map(path => getDirs(path)).reduce((a, b) => a.concat(b))
+    )
+    reservations.set(fn, { dirs, paths })
+    paths.forEach(path => {
+      const q = queues.get(path)
+      if (!q) {
+        queues.set(path, [fn])
+      } else {
+        q.push(fn)
+      }
+    })
+    dirs.forEach(dir => {
+      const q = queues.get(dir)
+      if (!q) {
+        queues.set(dir, [new Set([fn])])
+      } else if (q[q.length - 1] instanceof Set) {
+        q[q.length - 1].add(fn)
+      } else {
+        q.push(new Set([fn]))
+      }
+    })
+
+    return run(fn)
+  }
+
+  return { check, reserve }
+}
diff --git a/node_modules/tar/lib/pax.js b/node_modules/tar/lib/pax.js
new file mode 100644
index 0000000..4a7ca85
--- /dev/null
+++ b/node_modules/tar/lib/pax.js
@@ -0,0 +1,150 @@
+'use strict'
+const Header = require('./header.js')
+const path = require('path')
+
+class Pax {
+  constructor (obj, global) {
+    this.atime = obj.atime || null
+    this.charset = obj.charset || null
+    this.comment = obj.comment || null
+    this.ctime = obj.ctime || null
+    this.gid = obj.gid || null
+    this.gname = obj.gname || null
+    this.linkpath = obj.linkpath || null
+    this.mtime = obj.mtime || null
+    this.path = obj.path || null
+    this.size = obj.size || null
+    this.uid = obj.uid || null
+    this.uname = obj.uname || null
+    this.dev = obj.dev || null
+    this.ino = obj.ino || null
+    this.nlink = obj.nlink || null
+    this.global = global || false
+  }
+
+  encode () {
+    const body = this.encodeBody()
+    if (body === '') {
+      return null
+    }
+
+    const bodyLen = Buffer.byteLength(body)
+    // round up to 512 bytes
+    // add 512 for header
+    const bufLen = 512 * Math.ceil(1 + bodyLen / 512)
+    const buf = Buffer.allocUnsafe(bufLen)
+
+    // 0-fill the header section, it might not hit every field
+    for (let i = 0; i < 512; i++) {
+      buf[i] = 0
+    }
+
+    new Header({
+      // XXX split the path
+      // then the path should be PaxHeader + basename, but less than 99,
+      // prepend with the dirname
+      path: ('PaxHeader/' + path.basename(this.path)).slice(0, 99),
+      mode: this.mode || 0o644,
+      uid: this.uid || null,
+      gid: this.gid || null,
+      size: bodyLen,
+      mtime: this.mtime || null,
+      type: this.global ? 'GlobalExtendedHeader' : 'ExtendedHeader',
+      linkpath: '',
+      uname: this.uname || '',
+      gname: this.gname || '',
+      devmaj: 0,
+      devmin: 0,
+      atime: this.atime || null,
+      ctime: this.ctime || null,
+    }).encode(buf)
+
+    buf.write(body, 512, bodyLen, 'utf8')
+
+    // null pad after the body
+    for (let i = bodyLen + 512; i < buf.length; i++) {
+      buf[i] = 0
+    }
+
+    return buf
+  }
+
+  encodeBody () {
+    return (
+      this.encodeField('path') +
+      this.encodeField('ctime') +
+      this.encodeField('atime') +
+      this.encodeField('dev') +
+      this.encodeField('ino') +
+      this.encodeField('nlink') +
+      this.encodeField('charset') +
+      this.encodeField('comment') +
+      this.encodeField('gid') +
+      this.encodeField('gname') +
+      this.encodeField('linkpath') +
+      this.encodeField('mtime') +
+      this.encodeField('size') +
+      this.encodeField('uid') +
+      this.encodeField('uname')
+    )
+  }
+
+  encodeField (field) {
+    if (this[field] === null || this[field] === undefined) {
+      return ''
+    }
+    const v = this[field] instanceof Date ? this[field].getTime() / 1000
+      : this[field]
+    const s = ' ' +
+      (field === 'dev' || field === 'ino' || field === 'nlink'
+        ? 'SCHILY.' : '') +
+      field + '=' + v + '\n'
+    const byteLen = Buffer.byteLength(s)
+    // the digits includes the length of the digits in ascii base-10
+    // so if it's 9 characters, then adding 1 for the 9 makes it 10
+    // which makes it 11 chars.
+    let digits = Math.floor(Math.log(byteLen) / Math.log(10)) + 1
+    if (byteLen + digits >= Math.pow(10, digits)) {
+      digits += 1
+    }
+    const len = digits + byteLen
+    return len + s
+  }
+}
+
+Pax.parse = (string, ex, g) => new Pax(merge(parseKV(string), ex), g)
+
+const merge = (a, b) =>
+  b ? Object.keys(a).reduce((s, k) => (s[k] = a[k], s), b) : a
+
+const parseKV = string =>
+  string
+    .replace(/\n$/, '')
+    .split('\n')
+    .reduce(parseKVLine, Object.create(null))
+
+const parseKVLine = (set, line) => {
+  const n = parseInt(line, 10)
+
+  // XXX Values with \n in them will fail this.
+  // Refactor to not be a naive line-by-line parse.
+  if (n !== Buffer.byteLength(line) + 1) {
+    return set
+  }
+
+  line = line.slice((n + ' ').length)
+  const kv = line.split('=')
+  const k = kv.shift().replace(/^SCHILY\.(dev|ino|nlink)/, '$1')
+  if (!k) {
+    return set
+  }
+
+  const v = kv.join('=')
+  set[k] = /^([A-Z]+\.)?([mac]|birth|creation)time$/.test(k)
+    ? new Date(v * 1000)
+    : /^[0-9]+$/.test(v) ? +v
+    : v
+  return set
+}
+
+module.exports = Pax
diff --git a/node_modules/tar/lib/read-entry.js b/node_modules/tar/lib/read-entry.js
new file mode 100644
index 0000000..6186266
--- /dev/null
+++ b/node_modules/tar/lib/read-entry.js
@@ -0,0 +1,107 @@
+'use strict'
+const { Minipass } = require('minipass')
+const normPath = require('./normalize-windows-path.js')
+
+const SLURP = Symbol('slurp')
+module.exports = class ReadEntry extends Minipass {
+  constructor (header, ex, gex) {
+    super()
+    // read entries always start life paused.  this is to avoid the
+    // situation where Minipass's auto-ending empty streams results
+    // in an entry ending before we're ready for it.
+    this.pause()
+    this.extended = ex
+    this.globalExtended = gex
+    this.header = header
+    this.startBlockSize = 512 * Math.ceil(header.size / 512)
+    this.blockRemain = this.startBlockSize
+    this.remain = header.size
+    this.type = header.type
+    this.meta = false
+    this.ignore = false
+    switch (this.type) {
+      case 'File':
+      case 'OldFile':
+      case 'Link':
+      case 'SymbolicLink':
+      case 'CharacterDevice':
+      case 'BlockDevice':
+      case 'Directory':
+      case 'FIFO':
+      case 'ContiguousFile':
+      case 'GNUDumpDir':
+        break
+
+      case 'NextFileHasLongLinkpath':
+      case 'NextFileHasLongPath':
+      case 'OldGnuLongPath':
+      case 'GlobalExtendedHeader':
+      case 'ExtendedHeader':
+      case 'OldExtendedHeader':
+        this.meta = true
+        break
+
+      // NOTE: gnutar and bsdtar treat unrecognized types as 'File'
+      // it may be worth doing the same, but with a warning.
+      default:
+        this.ignore = true
+    }
+
+    this.path = normPath(header.path)
+    this.mode = header.mode
+    if (this.mode) {
+      this.mode = this.mode & 0o7777
+    }
+    this.uid = header.uid
+    this.gid = header.gid
+    this.uname = header.uname
+    this.gname = header.gname
+    this.size = header.size
+    this.mtime = header.mtime
+    this.atime = header.atime
+    this.ctime = header.ctime
+    this.linkpath = normPath(header.linkpath)
+    this.uname = header.uname
+    this.gname = header.gname
+
+    if (ex) {
+      this[SLURP](ex)
+    }
+    if (gex) {
+      this[SLURP](gex, true)
+    }
+  }
+
+  write (data) {
+    const writeLen = data.length
+    if (writeLen > this.blockRemain) {
+      throw new Error('writing more to entry than is appropriate')
+    }
+
+    const r = this.remain
+    const br = this.blockRemain
+    this.remain = Math.max(0, r - writeLen)
+    this.blockRemain = Math.max(0, br - writeLen)
+    if (this.ignore) {
+      return true
+    }
+
+    if (r >= writeLen) {
+      return super.write(data)
+    }
+
+    // r < writeLen
+    return super.write(data.slice(0, r))
+  }
+
+  [SLURP] (ex, global) {
+    for (const k in ex) {
+      // we slurp in everything except for the path attribute in
+      // a global extended header, because that's weird.
+      if (ex[k] !== null && ex[k] !== undefined &&
+          !(global && k === 'path')) {
+        this[k] = k === 'path' || k === 'linkpath' ? normPath(ex[k]) : ex[k]
+      }
+    }
+  }
+}
diff --git a/node_modules/tar/lib/replace.js b/node_modules/tar/lib/replace.js
new file mode 100644
index 0000000..8db6800
--- /dev/null
+++ b/node_modules/tar/lib/replace.js
@@ -0,0 +1,246 @@
+'use strict'
+
+// tar -r
+const hlo = require('./high-level-opt.js')
+const Pack = require('./pack.js')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const t = require('./list.js')
+const path = require('path')
+
+// starting at the head of the file, read a Header
+// If the checksum is invalid, that's our position to start writing
+// If it is, jump forward by the specified size (round up to 512)
+// and try again.
+// Write the new Pack stream starting there.
+
+const Header = require('./header.js')
+
+module.exports = (opt_, files, cb) => {
+  const opt = hlo(opt_)
+
+  if (!opt.file) {
+    throw new TypeError('file is required')
+  }
+
+  if (opt.gzip || opt.brotli || opt.file.endsWith('.br') || opt.file.endsWith('.tbr')) {
+    throw new TypeError('cannot append to compressed archives')
+  }
+
+  if (!files || !Array.isArray(files) || !files.length) {
+    throw new TypeError('no files or directories specified')
+  }
+
+  files = Array.from(files)
+
+  return opt.sync ? replaceSync(opt, files)
+    : replace(opt, files, cb)
+}
+
+const replaceSync = (opt, files) => {
+  const p = new Pack.Sync(opt)
+
+  let threw = true
+  let fd
+  let position
+
+  try {
+    try {
+      fd = fs.openSync(opt.file, 'r+')
+    } catch (er) {
+      if (er.code === 'ENOENT') {
+        fd = fs.openSync(opt.file, 'w+')
+      } else {
+        throw er
+      }
+    }
+
+    const st = fs.fstatSync(fd)
+    const headBuf = Buffer.alloc(512)
+
+    POSITION: for (position = 0; position < st.size; position += 512) {
+      for (let bufPos = 0, bytes = 0; bufPos < 512; bufPos += bytes) {
+        bytes = fs.readSync(
+          fd, headBuf, bufPos, headBuf.length - bufPos, position + bufPos
+        )
+
+        if (position === 0 && headBuf[0] === 0x1f && headBuf[1] === 0x8b) {
+          throw new Error('cannot append to compressed archives')
+        }
+
+        if (!bytes) {
+          break POSITION
+        }
+      }
+
+      const h = new Header(headBuf)
+      if (!h.cksumValid) {
+        break
+      }
+      const entryBlockSize = 512 * Math.ceil(h.size / 512)
+      if (position + entryBlockSize + 512 > st.size) {
+        break
+      }
+      // the 512 for the header we just parsed will be added as well
+      // also jump ahead all the blocks for the body
+      position += entryBlockSize
+      if (opt.mtimeCache) {
+        opt.mtimeCache.set(h.path, h.mtime)
+      }
+    }
+    threw = false
+
+    streamSync(opt, p, position, fd, files)
+  } finally {
+    if (threw) {
+      try {
+        fs.closeSync(fd)
+      } catch (er) {}
+    }
+  }
+}
+
+const streamSync = (opt, p, position, fd, files) => {
+  const stream = new fsm.WriteStreamSync(opt.file, {
+    fd: fd,
+    start: position,
+  })
+  p.pipe(stream)
+  addFilesSync(p, files)
+}
+
+const replace = (opt, files, cb) => {
+  files = Array.from(files)
+  const p = new Pack(opt)
+
+  const getPos = (fd, size, cb_) => {
+    const cb = (er, pos) => {
+      if (er) {
+        fs.close(fd, _ => cb_(er))
+      } else {
+        cb_(null, pos)
+      }
+    }
+
+    let position = 0
+    if (size === 0) {
+      return cb(null, 0)
+    }
+
+    let bufPos = 0
+    const headBuf = Buffer.alloc(512)
+    const onread = (er, bytes) => {
+      if (er) {
+        return cb(er)
+      }
+      bufPos += bytes
+      if (bufPos < 512 && bytes) {
+        return fs.read(
+          fd, headBuf, bufPos, headBuf.length - bufPos,
+          position + bufPos, onread
+        )
+      }
+
+      if (position === 0 && headBuf[0] === 0x1f && headBuf[1] === 0x8b) {
+        return cb(new Error('cannot append to compressed archives'))
+      }
+
+      // truncated header
+      if (bufPos < 512) {
+        return cb(null, position)
+      }
+
+      const h = new Header(headBuf)
+      if (!h.cksumValid) {
+        return cb(null, position)
+      }
+
+      const entryBlockSize = 512 * Math.ceil(h.size / 512)
+      if (position + entryBlockSize + 512 > size) {
+        return cb(null, position)
+      }
+
+      position += entryBlockSize + 512
+      if (position >= size) {
+        return cb(null, position)
+      }
+
+      if (opt.mtimeCache) {
+        opt.mtimeCache.set(h.path, h.mtime)
+      }
+      bufPos = 0
+      fs.read(fd, headBuf, 0, 512, position, onread)
+    }
+    fs.read(fd, headBuf, 0, 512, position, onread)
+  }
+
+  const promise = new Promise((resolve, reject) => {
+    p.on('error', reject)
+    let flag = 'r+'
+    const onopen = (er, fd) => {
+      if (er && er.code === 'ENOENT' && flag === 'r+') {
+        flag = 'w+'
+        return fs.open(opt.file, flag, onopen)
+      }
+
+      if (er) {
+        return reject(er)
+      }
+
+      fs.fstat(fd, (er, st) => {
+        if (er) {
+          return fs.close(fd, () => reject(er))
+        }
+
+        getPos(fd, st.size, (er, position) => {
+          if (er) {
+            return reject(er)
+          }
+          const stream = new fsm.WriteStream(opt.file, {
+            fd: fd,
+            start: position,
+          })
+          p.pipe(stream)
+          stream.on('error', reject)
+          stream.on('close', resolve)
+          addFilesAsync(p, files)
+        })
+      })
+    }
+    fs.open(opt.file, flag, onopen)
+  })
+
+  return cb ? promise.then(cb, cb) : promise
+}
+
+const addFilesSync = (p, files) => {
+  files.forEach(file => {
+    if (file.charAt(0) === '@') {
+      t({
+        file: path.resolve(p.cwd, file.slice(1)),
+        sync: true,
+        noResume: true,
+        onentry: entry => p.add(entry),
+      })
+    } else {
+      p.add(file)
+    }
+  })
+  p.end()
+}
+
+const addFilesAsync = (p, files) => {
+  while (files.length) {
+    const file = files.shift()
+    if (file.charAt(0) === '@') {
+      return t({
+        file: path.resolve(p.cwd, file.slice(1)),
+        noResume: true,
+        onentry: entry => p.add(entry),
+      }).then(_ => addFilesAsync(p, files))
+    } else {
+      p.add(file)
+    }
+  }
+  p.end()
+}
diff --git a/node_modules/tar/lib/strip-absolute-path.js b/node_modules/tar/lib/strip-absolute-path.js
new file mode 100644
index 0000000..185e2de
--- /dev/null
+++ b/node_modules/tar/lib/strip-absolute-path.js
@@ -0,0 +1,24 @@
+// unix absolute paths are also absolute on win32, so we use this for both
+const { isAbsolute, parse } = require('path').win32
+
+// returns [root, stripped]
+// Note that windows will think that //x/y/z/a has a "root" of //x/y, and in
+// those cases, we want to sanitize it to x/y/z/a, not z/a, so we strip /
+// explicitly if it's the first character.
+// drive-specific relative paths on Windows get their root stripped off even
+// though they are not absolute, so `c:../foo` becomes ['c:', '../foo']
+module.exports = path => {
+  let r = ''
+
+  let parsed = parse(path)
+  while (isAbsolute(path) || parsed.root) {
+    // windows will think that //x/y/z has a "root" of //x/y/
+    // but strip the //?/C:/ off of //?/C:/path
+    const root = path.charAt(0) === '/' && path.slice(0, 4) !== '//?/' ? '/'
+      : parsed.root
+    path = path.slice(root.length)
+    r += root
+    parsed = parse(path)
+  }
+  return [r, path]
+}
diff --git a/node_modules/tar/lib/strip-trailing-slashes.js b/node_modules/tar/lib/strip-trailing-slashes.js
new file mode 100644
index 0000000..3e3ecec
--- /dev/null
+++ b/node_modules/tar/lib/strip-trailing-slashes.js
@@ -0,0 +1,13 @@
+// warning: extremely hot code path.
+// This has been meticulously optimized for use
+// within npm install on large package trees.
+// Do not edit without careful benchmarking.
+module.exports = str => {
+  let i = str.length - 1
+  let slashesStart = -1
+  while (i > -1 && str.charAt(i) === '/') {
+    slashesStart = i
+    i--
+  }
+  return slashesStart === -1 ? str : str.slice(0, slashesStart)
+}
diff --git a/node_modules/tar/lib/types.js b/node_modules/tar/lib/types.js
new file mode 100644
index 0000000..7bfc254
--- /dev/null
+++ b/node_modules/tar/lib/types.js
@@ -0,0 +1,44 @@
+'use strict'
+// map types from key to human-friendly name
+exports.name = new Map([
+  ['0', 'File'],
+  // same as File
+  ['', 'OldFile'],
+  ['1', 'Link'],
+  ['2', 'SymbolicLink'],
+  // Devices and FIFOs aren't fully supported
+  // they are parsed, but skipped when unpacking
+  ['3', 'CharacterDevice'],
+  ['4', 'BlockDevice'],
+  ['5', 'Directory'],
+  ['6', 'FIFO'],
+  // same as File
+  ['7', 'ContiguousFile'],
+  // pax headers
+  ['g', 'GlobalExtendedHeader'],
+  ['x', 'ExtendedHeader'],
+  // vendor-specific stuff
+  // skip
+  ['A', 'SolarisACL'],
+  // like 5, but with data, which should be skipped
+  ['D', 'GNUDumpDir'],
+  // metadata only, skip
+  ['I', 'Inode'],
+  // data = link path of next file
+  ['K', 'NextFileHasLongLinkpath'],
+  // data = path of next file
+  ['L', 'NextFileHasLongPath'],
+  // skip
+  ['M', 'ContinuationFile'],
+  // like L
+  ['N', 'OldGnuLongPath'],
+  // skip
+  ['S', 'SparseFile'],
+  // skip
+  ['V', 'TapeVolumeHeader'],
+  // like x
+  ['X', 'OldExtendedHeader'],
+])
+
+// map the other direction
+exports.code = new Map(Array.from(exports.name).map(kv => [kv[1], kv[0]]))
diff --git a/node_modules/tar/lib/unpack.js b/node_modules/tar/lib/unpack.js
new file mode 100644
index 0000000..fa46611
--- /dev/null
+++ b/node_modules/tar/lib/unpack.js
@@ -0,0 +1,906 @@
+'use strict'
+
+// the PEND/UNPEND stuff tracks whether we're ready to emit end/close yet.
+// but the path reservations are required to avoid race conditions where
+// parallelized unpack ops may mess with one another, due to dependencies
+// (like a Link depending on its target) or destructive operations (like
+// clobbering an fs object to create one of a different type.)
+
+const assert = require('assert')
+const Parser = require('./parse.js')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const path = require('path')
+const mkdir = require('./mkdir.js')
+const wc = require('./winchars.js')
+const pathReservations = require('./path-reservations.js')
+const stripAbsolutePath = require('./strip-absolute-path.js')
+const normPath = require('./normalize-windows-path.js')
+const stripSlash = require('./strip-trailing-slashes.js')
+const normalize = require('./normalize-unicode.js')
+
+const ONENTRY = Symbol('onEntry')
+const CHECKFS = Symbol('checkFs')
+const CHECKFS2 = Symbol('checkFs2')
+const PRUNECACHE = Symbol('pruneCache')
+const ISREUSABLE = Symbol('isReusable')
+const MAKEFS = Symbol('makeFs')
+const FILE = Symbol('file')
+const DIRECTORY = Symbol('directory')
+const LINK = Symbol('link')
+const SYMLINK = Symbol('symlink')
+const HARDLINK = Symbol('hardlink')
+const UNSUPPORTED = Symbol('unsupported')
+const CHECKPATH = Symbol('checkPath')
+const MKDIR = Symbol('mkdir')
+const ONERROR = Symbol('onError')
+const PENDING = Symbol('pending')
+const PEND = Symbol('pend')
+const UNPEND = Symbol('unpend')
+const ENDED = Symbol('ended')
+const MAYBECLOSE = Symbol('maybeClose')
+const SKIP = Symbol('skip')
+const DOCHOWN = Symbol('doChown')
+const UID = Symbol('uid')
+const GID = Symbol('gid')
+const CHECKED_CWD = Symbol('checkedCwd')
+const crypto = require('crypto')
+const getFlag = require('./get-write-flag.js')
+const platform = process.env.TESTING_TAR_FAKE_PLATFORM || process.platform
+const isWindows = platform === 'win32'
+
+// Unlinks on Windows are not atomic.
+//
+// This means that if you have a file entry, followed by another
+// file entry with an identical name, and you cannot re-use the file
+// (because it's a hardlink, or because unlink:true is set, or it's
+// Windows, which does not have useful nlink values), then the unlink
+// will be committed to the disk AFTER the new file has been written
+// over the old one, deleting the new file.
+//
+// To work around this, on Windows systems, we rename the file and then
+// delete the renamed file.  It's a sloppy kludge, but frankly, I do not
+// know of a better way to do this, given windows' non-atomic unlink
+// semantics.
+//
+// See: https://github.com/npm/node-tar/issues/183
+/* istanbul ignore next */
+const unlinkFile = (path, cb) => {
+  if (!isWindows) {
+    return fs.unlink(path, cb)
+  }
+
+  const name = path + '.DELETE.' + crypto.randomBytes(16).toString('hex')
+  fs.rename(path, name, er => {
+    if (er) {
+      return cb(er)
+    }
+    fs.unlink(name, cb)
+  })
+}
+
+/* istanbul ignore next */
+const unlinkFileSync = path => {
+  if (!isWindows) {
+    return fs.unlinkSync(path)
+  }
+
+  const name = path + '.DELETE.' + crypto.randomBytes(16).toString('hex')
+  fs.renameSync(path, name)
+  fs.unlinkSync(name)
+}
+
+// this.gid, entry.gid, this.processUid
+const uint32 = (a, b, c) =>
+  a === a >>> 0 ? a
+  : b === b >>> 0 ? b
+  : c
+
+// clear the cache if it's a case-insensitive unicode-squashing match.
+// we can't know if the current file system is case-sensitive or supports
+// unicode fully, so we check for similarity on the maximally compatible
+// representation.  Err on the side of pruning, since all it's doing is
+// preventing lstats, and it's not the end of the world if we get a false
+// positive.
+// Note that on windows, we always drop the entire cache whenever a
+// symbolic link is encountered, because 8.3 filenames are impossible
+// to reason about, and collisions are hazards rather than just failures.
+const cacheKeyNormalize = path => stripSlash(normPath(normalize(path)))
+  .toLowerCase()
+
+const pruneCache = (cache, abs) => {
+  abs = cacheKeyNormalize(abs)
+  for (const path of cache.keys()) {
+    const pnorm = cacheKeyNormalize(path)
+    if (pnorm === abs || pnorm.indexOf(abs + '/') === 0) {
+      cache.delete(path)
+    }
+  }
+}
+
+const dropCache = cache => {
+  for (const key of cache.keys()) {
+    cache.delete(key)
+  }
+}
+
+class Unpack extends Parser {
+  constructor (opt) {
+    if (!opt) {
+      opt = {}
+    }
+
+    opt.ondone = _ => {
+      this[ENDED] = true
+      this[MAYBECLOSE]()
+    }
+
+    super(opt)
+
+    this[CHECKED_CWD] = false
+
+    this.reservations = pathReservations()
+
+    this.transform = typeof opt.transform === 'function' ? opt.transform : null
+
+    this.writable = true
+    this.readable = false
+
+    this[PENDING] = 0
+    this[ENDED] = false
+
+    this.dirCache = opt.dirCache || new Map()
+
+    if (typeof opt.uid === 'number' || typeof opt.gid === 'number') {
+      // need both or neither
+      if (typeof opt.uid !== 'number' || typeof opt.gid !== 'number') {
+        throw new TypeError('cannot set owner without number uid and gid')
+      }
+      if (opt.preserveOwner) {
+        throw new TypeError(
+          'cannot preserve owner in archive and also set owner explicitly')
+      }
+      this.uid = opt.uid
+      this.gid = opt.gid
+      this.setOwner = true
+    } else {
+      this.uid = null
+      this.gid = null
+      this.setOwner = false
+    }
+
+    // default true for root
+    if (opt.preserveOwner === undefined && typeof opt.uid !== 'number') {
+      this.preserveOwner = process.getuid && process.getuid() === 0
+    } else {
+      this.preserveOwner = !!opt.preserveOwner
+    }
+
+    this.processUid = (this.preserveOwner || this.setOwner) && process.getuid ?
+      process.getuid() : null
+    this.processGid = (this.preserveOwner || this.setOwner) && process.getgid ?
+      process.getgid() : null
+
+    // mostly just for testing, but useful in some cases.
+    // Forcibly trigger a chown on every entry, no matter what
+    this.forceChown = opt.forceChown === true
+
+    // turn ><?| in filenames into 0xf000-higher encoded forms
+    this.win32 = !!opt.win32 || isWindows
+
+    // do not unpack over files that are newer than what's in the archive
+    this.newer = !!opt.newer
+
+    // do not unpack over ANY files
+    this.keep = !!opt.keep
+
+    // do not set mtime/atime of extracted entries
+    this.noMtime = !!opt.noMtime
+
+    // allow .., absolute path entries, and unpacking through symlinks
+    // without this, warn and skip .., relativize absolutes, and error
+    // on symlinks in extraction path
+    this.preservePaths = !!opt.preservePaths
+
+    // unlink files and links before writing. This breaks existing hard
+    // links, and removes symlink directories rather than erroring
+    this.unlink = !!opt.unlink
+
+    this.cwd = normPath(path.resolve(opt.cwd || process.cwd()))
+    this.strip = +opt.strip || 0
+    // if we're not chmodding, then we don't need the process umask
+    this.processUmask = opt.noChmod ? 0 : process.umask()
+    this.umask = typeof opt.umask === 'number' ? opt.umask : this.processUmask
+
+    // default mode for dirs created as parents
+    this.dmode = opt.dmode || (0o0777 & (~this.umask))
+    this.fmode = opt.fmode || (0o0666 & (~this.umask))
+
+    this.on('entry', entry => this[ONENTRY](entry))
+  }
+
+  // a bad or damaged archive is a warning for Parser, but an error
+  // when extracting.  Mark those errors as unrecoverable, because
+  // the Unpack contract cannot be met.
+  warn (code, msg, data = {}) {
+    if (code === 'TAR_BAD_ARCHIVE' || code === 'TAR_ABORT') {
+      data.recoverable = false
+    }
+    return super.warn(code, msg, data)
+  }
+
+  [MAYBECLOSE] () {
+    if (this[ENDED] && this[PENDING] === 0) {
+      this.emit('prefinish')
+      this.emit('finish')
+      this.emit('end')
+    }
+  }
+
+  [CHECKPATH] (entry) {
+    if (this.strip) {
+      const parts = normPath(entry.path).split('/')
+      if (parts.length < this.strip) {
+        return false
+      }
+      entry.path = parts.slice(this.strip).join('/')
+
+      if (entry.type === 'Link') {
+        const linkparts = normPath(entry.linkpath).split('/')
+        if (linkparts.length >= this.strip) {
+          entry.linkpath = linkparts.slice(this.strip).join('/')
+        } else {
+          return false
+        }
+      }
+    }
+
+    if (!this.preservePaths) {
+      const p = normPath(entry.path)
+      const parts = p.split('/')
+      if (parts.includes('..') || isWindows && /^[a-z]:\.\.$/i.test(parts[0])) {
+        this.warn('TAR_ENTRY_ERROR', `path contains '..'`, {
+          entry,
+          path: p,
+        })
+        return false
+      }
+
+      // strip off the root
+      const [root, stripped] = stripAbsolutePath(p)
+      if (root) {
+        entry.path = stripped
+        this.warn('TAR_ENTRY_INFO', `stripping ${root} from absolute path`, {
+          entry,
+          path: p,
+        })
+      }
+    }
+
+    if (path.isAbsolute(entry.path)) {
+      entry.absolute = normPath(path.resolve(entry.path))
+    } else {
+      entry.absolute = normPath(path.resolve(this.cwd, entry.path))
+    }
+
+    // if we somehow ended up with a path that escapes the cwd, and we are
+    // not in preservePaths mode, then something is fishy!  This should have
+    // been prevented above, so ignore this for coverage.
+    /* istanbul ignore if - defense in depth */
+    if (!this.preservePaths &&
+        entry.absolute.indexOf(this.cwd + '/') !== 0 &&
+        entry.absolute !== this.cwd) {
+      this.warn('TAR_ENTRY_ERROR', 'path escaped extraction target', {
+        entry,
+        path: normPath(entry.path),
+        resolvedPath: entry.absolute,
+        cwd: this.cwd,
+      })
+      return false
+    }
+
+    // an archive can set properties on the extraction directory, but it
+    // may not replace the cwd with a different kind of thing entirely.
+    if (entry.absolute === this.cwd &&
+        entry.type !== 'Directory' &&
+        entry.type !== 'GNUDumpDir') {
+      return false
+    }
+
+    // only encode : chars that aren't drive letter indicators
+    if (this.win32) {
+      const { root: aRoot } = path.win32.parse(entry.absolute)
+      entry.absolute = aRoot + wc.encode(entry.absolute.slice(aRoot.length))
+      const { root: pRoot } = path.win32.parse(entry.path)
+      entry.path = pRoot + wc.encode(entry.path.slice(pRoot.length))
+    }
+
+    return true
+  }
+
+  [ONENTRY] (entry) {
+    if (!this[CHECKPATH](entry)) {
+      return entry.resume()
+    }
+
+    assert.equal(typeof entry.absolute, 'string')
+
+    switch (entry.type) {
+      case 'Directory':
+      case 'GNUDumpDir':
+        if (entry.mode) {
+          entry.mode = entry.mode | 0o700
+        }
+
+      // eslint-disable-next-line no-fallthrough
+      case 'File':
+      case 'OldFile':
+      case 'ContiguousFile':
+      case 'Link':
+      case 'SymbolicLink':
+        return this[CHECKFS](entry)
+
+      case 'CharacterDevice':
+      case 'BlockDevice':
+      case 'FIFO':
+      default:
+        return this[UNSUPPORTED](entry)
+    }
+  }
+
+  [ONERROR] (er, entry) {
+    // Cwd has to exist, or else nothing works. That's serious.
+    // Other errors are warnings, which raise the error in strict
+    // mode, but otherwise continue on.
+    if (er.name === 'CwdError') {
+      this.emit('error', er)
+    } else {
+      this.warn('TAR_ENTRY_ERROR', er, { entry })
+      this[UNPEND]()
+      entry.resume()
+    }
+  }
+
+  [MKDIR] (dir, mode, cb) {
+    mkdir(normPath(dir), {
+      uid: this.uid,
+      gid: this.gid,
+      processUid: this.processUid,
+      processGid: this.processGid,
+      umask: this.processUmask,
+      preserve: this.preservePaths,
+      unlink: this.unlink,
+      cache: this.dirCache,
+      cwd: this.cwd,
+      mode: mode,
+      noChmod: this.noChmod,
+    }, cb)
+  }
+
+  [DOCHOWN] (entry) {
+    // in preserve owner mode, chown if the entry doesn't match process
+    // in set owner mode, chown if setting doesn't match process
+    return this.forceChown ||
+      this.preserveOwner &&
+      (typeof entry.uid === 'number' && entry.uid !== this.processUid ||
+        typeof entry.gid === 'number' && entry.gid !== this.processGid)
+      ||
+      (typeof this.uid === 'number' && this.uid !== this.processUid ||
+        typeof this.gid === 'number' && this.gid !== this.processGid)
+  }
+
+  [UID] (entry) {
+    return uint32(this.uid, entry.uid, this.processUid)
+  }
+
+  [GID] (entry) {
+    return uint32(this.gid, entry.gid, this.processGid)
+  }
+
+  [FILE] (entry, fullyDone) {
+    const mode = entry.mode & 0o7777 || this.fmode
+    const stream = new fsm.WriteStream(entry.absolute, {
+      flags: getFlag(entry.size),
+      mode: mode,
+      autoClose: false,
+    })
+    stream.on('error', er => {
+      if (stream.fd) {
+        fs.close(stream.fd, () => {})
+      }
+
+      // flush all the data out so that we aren't left hanging
+      // if the error wasn't actually fatal.  otherwise the parse
+      // is blocked, and we never proceed.
+      stream.write = () => true
+      this[ONERROR](er, entry)
+      fullyDone()
+    })
+
+    let actions = 1
+    const done = er => {
+      if (er) {
+        /* istanbul ignore else - we should always have a fd by now */
+        if (stream.fd) {
+          fs.close(stream.fd, () => {})
+        }
+
+        this[ONERROR](er, entry)
+        fullyDone()
+        return
+      }
+
+      if (--actions === 0) {
+        fs.close(stream.fd, er => {
+          if (er) {
+            this[ONERROR](er, entry)
+          } else {
+            this[UNPEND]()
+          }
+          fullyDone()
+        })
+      }
+    }
+
+    stream.on('finish', _ => {
+      // if futimes fails, try utimes
+      // if utimes fails, fail with the original error
+      // same for fchown/chown
+      const abs = entry.absolute
+      const fd = stream.fd
+
+      if (entry.mtime && !this.noMtime) {
+        actions++
+        const atime = entry.atime || new Date()
+        const mtime = entry.mtime
+        fs.futimes(fd, atime, mtime, er =>
+          er ? fs.utimes(abs, atime, mtime, er2 => done(er2 && er))
+          : done())
+      }
+
+      if (this[DOCHOWN](entry)) {
+        actions++
+        const uid = this[UID](entry)
+        const gid = this[GID](entry)
+        fs.fchown(fd, uid, gid, er =>
+          er ? fs.chown(abs, uid, gid, er2 => done(er2 && er))
+          : done())
+      }
+
+      done()
+    })
+
+    const tx = this.transform ? this.transform(entry) || entry : entry
+    if (tx !== entry) {
+      tx.on('error', er => {
+        this[ONERROR](er, entry)
+        fullyDone()
+      })
+      entry.pipe(tx)
+    }
+    tx.pipe(stream)
+  }
+
+  [DIRECTORY] (entry, fullyDone) {
+    const mode = entry.mode & 0o7777 || this.dmode
+    this[MKDIR](entry.absolute, mode, er => {
+      if (er) {
+        this[ONERROR](er, entry)
+        fullyDone()
+        return
+      }
+
+      let actions = 1
+      const done = _ => {
+        if (--actions === 0) {
+          fullyDone()
+          this[UNPEND]()
+          entry.resume()
+        }
+      }
+
+      if (entry.mtime && !this.noMtime) {
+        actions++
+        fs.utimes(entry.absolute, entry.atime || new Date(), entry.mtime, done)
+      }
+
+      if (this[DOCHOWN](entry)) {
+        actions++
+        fs.chown(entry.absolute, this[UID](entry), this[GID](entry), done)
+      }
+
+      done()
+    })
+  }
+
+  [UNSUPPORTED] (entry) {
+    entry.unsupported = true
+    this.warn('TAR_ENTRY_UNSUPPORTED',
+      `unsupported entry type: ${entry.type}`, { entry })
+    entry.resume()
+  }
+
+  [SYMLINK] (entry, done) {
+    this[LINK](entry, entry.linkpath, 'symlink', done)
+  }
+
+  [HARDLINK] (entry, done) {
+    const linkpath = normPath(path.resolve(this.cwd, entry.linkpath))
+    this[LINK](entry, linkpath, 'link', done)
+  }
+
+  [PEND] () {
+    this[PENDING]++
+  }
+
+  [UNPEND] () {
+    this[PENDING]--
+    this[MAYBECLOSE]()
+  }
+
+  [SKIP] (entry) {
+    this[UNPEND]()
+    entry.resume()
+  }
+
+  // Check if we can reuse an existing filesystem entry safely and
+  // overwrite it, rather than unlinking and recreating
+  // Windows doesn't report a useful nlink, so we just never reuse entries
+  [ISREUSABLE] (entry, st) {
+    return entry.type === 'File' &&
+      !this.unlink &&
+      st.isFile() &&
+      st.nlink <= 1 &&
+      !isWindows
+  }
+
+  // check if a thing is there, and if so, try to clobber it
+  [CHECKFS] (entry) {
+    this[PEND]()
+    const paths = [entry.path]
+    if (entry.linkpath) {
+      paths.push(entry.linkpath)
+    }
+    this.reservations.reserve(paths, done => this[CHECKFS2](entry, done))
+  }
+
+  [PRUNECACHE] (entry) {
+    // if we are not creating a directory, and the path is in the dirCache,
+    // then that means we are about to delete the directory we created
+    // previously, and it is no longer going to be a directory, and neither
+    // is any of its children.
+    // If a symbolic link is encountered, all bets are off.  There is no
+    // reasonable way to sanitize the cache in such a way we will be able to
+    // avoid having filesystem collisions.  If this happens with a non-symlink
+    // entry, it'll just fail to unpack, but a symlink to a directory, using an
+    // 8.3 shortname or certain unicode attacks, can evade detection and lead
+    // to arbitrary writes to anywhere on the system.
+    if (entry.type === 'SymbolicLink') {
+      dropCache(this.dirCache)
+    } else if (entry.type !== 'Directory') {
+      pruneCache(this.dirCache, entry.absolute)
+    }
+  }
+
+  [CHECKFS2] (entry, fullyDone) {
+    this[PRUNECACHE](entry)
+
+    const done = er => {
+      this[PRUNECACHE](entry)
+      fullyDone(er)
+    }
+
+    const checkCwd = () => {
+      this[MKDIR](this.cwd, this.dmode, er => {
+        if (er) {
+          this[ONERROR](er, entry)
+          done()
+          return
+        }
+        this[CHECKED_CWD] = true
+        start()
+      })
+    }
+
+    const start = () => {
+      if (entry.absolute !== this.cwd) {
+        const parent = normPath(path.dirname(entry.absolute))
+        if (parent !== this.cwd) {
+          return this[MKDIR](parent, this.dmode, er => {
+            if (er) {
+              this[ONERROR](er, entry)
+              done()
+              return
+            }
+            afterMakeParent()
+          })
+        }
+      }
+      afterMakeParent()
+    }
+
+    const afterMakeParent = () => {
+      fs.lstat(entry.absolute, (lstatEr, st) => {
+        if (st && (this.keep || this.newer && st.mtime > entry.mtime)) {
+          this[SKIP](entry)
+          done()
+          return
+        }
+        if (lstatEr || this[ISREUSABLE](entry, st)) {
+          return this[MAKEFS](null, entry, done)
+        }
+
+        if (st.isDirectory()) {
+          if (entry.type === 'Directory') {
+            const needChmod = !this.noChmod &&
+              entry.mode &&
+              (st.mode & 0o7777) !== entry.mode
+            const afterChmod = er => this[MAKEFS](er, entry, done)
+            if (!needChmod) {
+              return afterChmod()
+            }
+            return fs.chmod(entry.absolute, entry.mode, afterChmod)
+          }
+          // Not a dir entry, have to remove it.
+          // NB: the only way to end up with an entry that is the cwd
+          // itself, in such a way that == does not detect, is a
+          // tricky windows absolute path with UNC or 8.3 parts (and
+          // preservePaths:true, or else it will have been stripped).
+          // In that case, the user has opted out of path protections
+          // explicitly, so if they blow away the cwd, c'est la vie.
+          if (entry.absolute !== this.cwd) {
+            return fs.rmdir(entry.absolute, er =>
+              this[MAKEFS](er, entry, done))
+          }
+        }
+
+        // not a dir, and not reusable
+        // don't remove if the cwd, we want that error
+        if (entry.absolute === this.cwd) {
+          return this[MAKEFS](null, entry, done)
+        }
+
+        unlinkFile(entry.absolute, er =>
+          this[MAKEFS](er, entry, done))
+      })
+    }
+
+    if (this[CHECKED_CWD]) {
+      start()
+    } else {
+      checkCwd()
+    }
+  }
+
+  [MAKEFS] (er, entry, done) {
+    if (er) {
+      this[ONERROR](er, entry)
+      done()
+      return
+    }
+
+    switch (entry.type) {
+      case 'File':
+      case 'OldFile':
+      case 'ContiguousFile':
+        return this[FILE](entry, done)
+
+      case 'Link':
+        return this[HARDLINK](entry, done)
+
+      case 'SymbolicLink':
+        return this[SYMLINK](entry, done)
+
+      case 'Directory':
+      case 'GNUDumpDir':
+        return this[DIRECTORY](entry, done)
+    }
+  }
+
+  [LINK] (entry, linkpath, link, done) {
+    // XXX: get the type ('symlink' or 'junction') for windows
+    fs[link](linkpath, entry.absolute, er => {
+      if (er) {
+        this[ONERROR](er, entry)
+      } else {
+        this[UNPEND]()
+        entry.resume()
+      }
+      done()
+    })
+  }
+}
+
+const callSync = fn => {
+  try {
+    return [null, fn()]
+  } catch (er) {
+    return [er, null]
+  }
+}
+class UnpackSync extends Unpack {
+  [MAKEFS] (er, entry) {
+    return super[MAKEFS](er, entry, () => {})
+  }
+
+  [CHECKFS] (entry) {
+    this[PRUNECACHE](entry)
+
+    if (!this[CHECKED_CWD]) {
+      const er = this[MKDIR](this.cwd, this.dmode)
+      if (er) {
+        return this[ONERROR](er, entry)
+      }
+      this[CHECKED_CWD] = true
+    }
+
+    // don't bother to make the parent if the current entry is the cwd,
+    // we've already checked it.
+    if (entry.absolute !== this.cwd) {
+      const parent = normPath(path.dirname(entry.absolute))
+      if (parent !== this.cwd) {
+        const mkParent = this[MKDIR](parent, this.dmode)
+        if (mkParent) {
+          return this[ONERROR](mkParent, entry)
+        }
+      }
+    }
+
+    const [lstatEr, st] = callSync(() => fs.lstatSync(entry.absolute))
+    if (st && (this.keep || this.newer && st.mtime > entry.mtime)) {
+      return this[SKIP](entry)
+    }
+
+    if (lstatEr || this[ISREUSABLE](entry, st)) {
+      return this[MAKEFS](null, entry)
+    }
+
+    if (st.isDirectory()) {
+      if (entry.type === 'Directory') {
+        const needChmod = !this.noChmod &&
+          entry.mode &&
+          (st.mode & 0o7777) !== entry.mode
+        const [er] = needChmod ? callSync(() => {
+          fs.chmodSync(entry.absolute, entry.mode)
+        }) : []
+        return this[MAKEFS](er, entry)
+      }
+      // not a dir entry, have to remove it
+      const [er] = callSync(() => fs.rmdirSync(entry.absolute))
+      this[MAKEFS](er, entry)
+    }
+
+    // not a dir, and not reusable.
+    // don't remove if it's the cwd, since we want that error.
+    const [er] = entry.absolute === this.cwd ? []
+      : callSync(() => unlinkFileSync(entry.absolute))
+    this[MAKEFS](er, entry)
+  }
+
+  [FILE] (entry, done) {
+    const mode = entry.mode & 0o7777 || this.fmode
+
+    const oner = er => {
+      let closeError
+      try {
+        fs.closeSync(fd)
+      } catch (e) {
+        closeError = e
+      }
+      if (er || closeError) {
+        this[ONERROR](er || closeError, entry)
+      }
+      done()
+    }
+
+    let fd
+    try {
+      fd = fs.openSync(entry.absolute, getFlag(entry.size), mode)
+    } catch (er) {
+      return oner(er)
+    }
+    const tx = this.transform ? this.transform(entry) || entry : entry
+    if (tx !== entry) {
+      tx.on('error', er => this[ONERROR](er, entry))
+      entry.pipe(tx)
+    }
+
+    tx.on('data', chunk => {
+      try {
+        fs.writeSync(fd, chunk, 0, chunk.length)
+      } catch (er) {
+        oner(er)
+      }
+    })
+
+    tx.on('end', _ => {
+      let er = null
+      // try both, falling futimes back to utimes
+      // if either fails, handle the first error
+      if (entry.mtime && !this.noMtime) {
+        const atime = entry.atime || new Date()
+        const mtime = entry.mtime
+        try {
+          fs.futimesSync(fd, atime, mtime)
+        } catch (futimeser) {
+          try {
+            fs.utimesSync(entry.absolute, atime, mtime)
+          } catch (utimeser) {
+            er = futimeser
+          }
+        }
+      }
+
+      if (this[DOCHOWN](entry)) {
+        const uid = this[UID](entry)
+        const gid = this[GID](entry)
+
+        try {
+          fs.fchownSync(fd, uid, gid)
+        } catch (fchowner) {
+          try {
+            fs.chownSync(entry.absolute, uid, gid)
+          } catch (chowner) {
+            er = er || fchowner
+          }
+        }
+      }
+
+      oner(er)
+    })
+  }
+
+  [DIRECTORY] (entry, done) {
+    const mode = entry.mode & 0o7777 || this.dmode
+    const er = this[MKDIR](entry.absolute, mode)
+    if (er) {
+      this[ONERROR](er, entry)
+      done()
+      return
+    }
+    if (entry.mtime && !this.noMtime) {
+      try {
+        fs.utimesSync(entry.absolute, entry.atime || new Date(), entry.mtime)
+      } catch (er) {}
+    }
+    if (this[DOCHOWN](entry)) {
+      try {
+        fs.chownSync(entry.absolute, this[UID](entry), this[GID](entry))
+      } catch (er) {}
+    }
+    done()
+    entry.resume()
+  }
+
+  [MKDIR] (dir, mode) {
+    try {
+      return mkdir.sync(normPath(dir), {
+        uid: this.uid,
+        gid: this.gid,
+        processUid: this.processUid,
+        processGid: this.processGid,
+        umask: this.processUmask,
+        preserve: this.preservePaths,
+        unlink: this.unlink,
+        cache: this.dirCache,
+        cwd: this.cwd,
+        mode: mode,
+      })
+    } catch (er) {
+      return er
+    }
+  }
+
+  [LINK] (entry, linkpath, link, done) {
+    try {
+      fs[link + 'Sync'](linkpath, entry.absolute)
+      done()
+      entry.resume()
+    } catch (er) {
+      return this[ONERROR](er, entry)
+    }
+  }
+}
+
+Unpack.Sync = UnpackSync
+module.exports = Unpack
diff --git a/node_modules/tar/lib/update.js b/node_modules/tar/lib/update.js
new file mode 100644
index 0000000..4d32854
--- /dev/null
+++ b/node_modules/tar/lib/update.js
@@ -0,0 +1,40 @@
+'use strict'
+
+// tar -u
+
+const hlo = require('./high-level-opt.js')
+const r = require('./replace.js')
+// just call tar.r with the filter and mtimeCache
+
+module.exports = (opt_, files, cb) => {
+  const opt = hlo(opt_)
+
+  if (!opt.file) {
+    throw new TypeError('file is required')
+  }
+
+  if (opt.gzip || opt.brotli || opt.file.endsWith('.br') || opt.file.endsWith('.tbr')) {
+    throw new TypeError('cannot append to compressed archives')
+  }
+
+  if (!files || !Array.isArray(files) || !files.length) {
+    throw new TypeError('no files or directories specified')
+  }
+
+  files = Array.from(files)
+
+  mtimeFilter(opt)
+  return r(opt, files, cb)
+}
+
+const mtimeFilter = opt => {
+  const filter = opt.filter
+
+  if (!opt.mtimeCache) {
+    opt.mtimeCache = new Map()
+  }
+
+  opt.filter = filter ? (path, stat) =>
+    filter(path, stat) && !(opt.mtimeCache.get(path) > stat.mtime)
+    : (path, stat) => !(opt.mtimeCache.get(path) > stat.mtime)
+}
diff --git a/node_modules/tar/lib/warn-mixin.js b/node_modules/tar/lib/warn-mixin.js
new file mode 100644
index 0000000..a940639
--- /dev/null
+++ b/node_modules/tar/lib/warn-mixin.js
@@ -0,0 +1,24 @@
+'use strict'
+module.exports = Base => class extends Base {
+  warn (code, message, data = {}) {
+    if (this.file) {
+      data.file = this.file
+    }
+    if (this.cwd) {
+      data.cwd = this.cwd
+    }
+    data.code = message instanceof Error && message.code || code
+    data.tarCode = code
+    if (!this.strict && data.recoverable !== false) {
+      if (message instanceof Error) {
+        data = Object.assign(message, data)
+        message = message.message
+      }
+      this.emit('warn', data.tarCode, message, data)
+    } else if (message instanceof Error) {
+      this.emit('error', Object.assign(message, data))
+    } else {
+      this.emit('error', Object.assign(new Error(`${code}: ${message}`), data))
+    }
+  }
+}
diff --git a/node_modules/tar/lib/winchars.js b/node_modules/tar/lib/winchars.js
new file mode 100644
index 0000000..ebcab4a
--- /dev/null
+++ b/node_modules/tar/lib/winchars.js
@@ -0,0 +1,23 @@
+'use strict'
+
+// When writing files on Windows, translate the characters to their
+// 0xf000 higher-encoded versions.
+
+const raw = [
+  '|',
+  '<',
+  '>',
+  '?',
+  ':',
+]
+
+const win = raw.map(char =>
+  String.fromCharCode(0xf000 + char.charCodeAt(0)))
+
+const toWin = new Map(raw.map((char, i) => [char, win[i]]))
+const toRaw = new Map(win.map((char, i) => [char, raw[i]]))
+
+module.exports = {
+  encode: s => raw.reduce((s, c) => s.split(c).join(toWin.get(c)), s),
+  decode: s => win.reduce((s, c) => s.split(c).join(toRaw.get(c)), s),
+}
diff --git a/node_modules/tar/lib/write-entry.js b/node_modules/tar/lib/write-entry.js
new file mode 100644
index 0000000..7d2f3eb
--- /dev/null
+++ b/node_modules/tar/lib/write-entry.js
@@ -0,0 +1,546 @@
+'use strict'
+const { Minipass } = require('minipass')
+const Pax = require('./pax.js')
+const Header = require('./header.js')
+const fs = require('fs')
+const path = require('path')
+const normPath = require('./normalize-windows-path.js')
+const stripSlash = require('./strip-trailing-slashes.js')
+
+const prefixPath = (path, prefix) => {
+  if (!prefix) {
+    return normPath(path)
+  }
+  path = normPath(path).replace(/^\.(\/|$)/, '')
+  return stripSlash(prefix) + '/' + path
+}
+
+const maxReadSize = 16 * 1024 * 1024
+const PROCESS = Symbol('process')
+const FILE = Symbol('file')
+const DIRECTORY = Symbol('directory')
+const SYMLINK = Symbol('symlink')
+const HARDLINK = Symbol('hardlink')
+const HEADER = Symbol('header')
+const READ = Symbol('read')
+const LSTAT = Symbol('lstat')
+const ONLSTAT = Symbol('onlstat')
+const ONREAD = Symbol('onread')
+const ONREADLINK = Symbol('onreadlink')
+const OPENFILE = Symbol('openfile')
+const ONOPENFILE = Symbol('onopenfile')
+const CLOSE = Symbol('close')
+const MODE = Symbol('mode')
+const AWAITDRAIN = Symbol('awaitDrain')
+const ONDRAIN = Symbol('ondrain')
+const PREFIX = Symbol('prefix')
+const HAD_ERROR = Symbol('hadError')
+const warner = require('./warn-mixin.js')
+const winchars = require('./winchars.js')
+const stripAbsolutePath = require('./strip-absolute-path.js')
+
+const modeFix = require('./mode-fix.js')
+
+const WriteEntry = warner(class WriteEntry extends Minipass {
+  constructor (p, opt) {
+    opt = opt || {}
+    super(opt)
+    if (typeof p !== 'string') {
+      throw new TypeError('path is required')
+    }
+    this.path = normPath(p)
+    // suppress atime, ctime, uid, gid, uname, gname
+    this.portable = !!opt.portable
+    // until node has builtin pwnam functions, this'll have to do
+    this.myuid = process.getuid && process.getuid() || 0
+    this.myuser = process.env.USER || ''
+    this.maxReadSize = opt.maxReadSize || maxReadSize
+    this.linkCache = opt.linkCache || new Map()
+    this.statCache = opt.statCache || new Map()
+    this.preservePaths = !!opt.preservePaths
+    this.cwd = normPath(opt.cwd || process.cwd())
+    this.strict = !!opt.strict
+    this.noPax = !!opt.noPax
+    this.noMtime = !!opt.noMtime
+    this.mtime = opt.mtime || null
+    this.prefix = opt.prefix ? normPath(opt.prefix) : null
+
+    this.fd = null
+    this.blockLen = null
+    this.blockRemain = null
+    this.buf = null
+    this.offset = null
+    this.length = null
+    this.pos = null
+    this.remain = null
+
+    if (typeof opt.onwarn === 'function') {
+      this.on('warn', opt.onwarn)
+    }
+
+    let pathWarn = false
+    if (!this.preservePaths) {
+      const [root, stripped] = stripAbsolutePath(this.path)
+      if (root) {
+        this.path = stripped
+        pathWarn = root
+      }
+    }
+
+    this.win32 = !!opt.win32 || process.platform === 'win32'
+    if (this.win32) {
+      // force the \ to / normalization, since we might not *actually*
+      // be on windows, but want \ to be considered a path separator.
+      this.path = winchars.decode(this.path.replace(/\\/g, '/'))
+      p = p.replace(/\\/g, '/')
+    }
+
+    this.absolute = normPath(opt.absolute || path.resolve(this.cwd, p))
+
+    if (this.path === '') {
+      this.path = './'
+    }
+
+    if (pathWarn) {
+      this.warn('TAR_ENTRY_INFO', `stripping ${pathWarn} from absolute path`, {
+        entry: this,
+        path: pathWarn + this.path,
+      })
+    }
+
+    if (this.statCache.has(this.absolute)) {
+      this[ONLSTAT](this.statCache.get(this.absolute))
+    } else {
+      this[LSTAT]()
+    }
+  }
+
+  emit (ev, ...data) {
+    if (ev === 'error') {
+      this[HAD_ERROR] = true
+    }
+    return super.emit(ev, ...data)
+  }
+
+  [LSTAT] () {
+    fs.lstat(this.absolute, (er, stat) => {
+      if (er) {
+        return this.emit('error', er)
+      }
+      this[ONLSTAT](stat)
+    })
+  }
+
+  [ONLSTAT] (stat) {
+    this.statCache.set(this.absolute, stat)
+    this.stat = stat
+    if (!stat.isFile()) {
+      stat.size = 0
+    }
+    this.type = getType(stat)
+    this.emit('stat', stat)
+    this[PROCESS]()
+  }
+
+  [PROCESS] () {
+    switch (this.type) {
+      case 'File': return this[FILE]()
+      case 'Directory': return this[DIRECTORY]()
+      case 'SymbolicLink': return this[SYMLINK]()
+      // unsupported types are ignored.
+      default: return this.end()
+    }
+  }
+
+  [MODE] (mode) {
+    return modeFix(mode, this.type === 'Directory', this.portable)
+  }
+
+  [PREFIX] (path) {
+    return prefixPath(path, this.prefix)
+  }
+
+  [HEADER] () {
+    if (this.type === 'Directory' && this.portable) {
+      this.noMtime = true
+    }
+
+    this.header = new Header({
+      path: this[PREFIX](this.path),
+      // only apply the prefix to hard links.
+      linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath)
+      : this.linkpath,
+      // only the permissions and setuid/setgid/sticky bitflags
+      // not the higher-order bits that specify file type
+      mode: this[MODE](this.stat.mode),
+      uid: this.portable ? null : this.stat.uid,
+      gid: this.portable ? null : this.stat.gid,
+      size: this.stat.size,
+      mtime: this.noMtime ? null : this.mtime || this.stat.mtime,
+      type: this.type,
+      uname: this.portable ? null :
+      this.stat.uid === this.myuid ? this.myuser : '',
+      atime: this.portable ? null : this.stat.atime,
+      ctime: this.portable ? null : this.stat.ctime,
+    })
+
+    if (this.header.encode() && !this.noPax) {
+      super.write(new Pax({
+        atime: this.portable ? null : this.header.atime,
+        ctime: this.portable ? null : this.header.ctime,
+        gid: this.portable ? null : this.header.gid,
+        mtime: this.noMtime ? null : this.mtime || this.header.mtime,
+        path: this[PREFIX](this.path),
+        linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath)
+        : this.linkpath,
+        size: this.header.size,
+        uid: this.portable ? null : this.header.uid,
+        uname: this.portable ? null : this.header.uname,
+        dev: this.portable ? null : this.stat.dev,
+        ino: this.portable ? null : this.stat.ino,
+        nlink: this.portable ? null : this.stat.nlink,
+      }).encode())
+    }
+    super.write(this.header.block)
+  }
+
+  [DIRECTORY] () {
+    if (this.path.slice(-1) !== '/') {
+      this.path += '/'
+    }
+    this.stat.size = 0
+    this[HEADER]()
+    this.end()
+  }
+
+  [SYMLINK] () {
+    fs.readlink(this.absolute, (er, linkpath) => {
+      if (er) {
+        return this.emit('error', er)
+      }
+      this[ONREADLINK](linkpath)
+    })
+  }
+
+  [ONREADLINK] (linkpath) {
+    this.linkpath = normPath(linkpath)
+    this[HEADER]()
+    this.end()
+  }
+
+  [HARDLINK] (linkpath) {
+    this.type = 'Link'
+    this.linkpath = normPath(path.relative(this.cwd, linkpath))
+    this.stat.size = 0
+    this[HEADER]()
+    this.end()
+  }
+
+  [FILE] () {
+    if (this.stat.nlink > 1) {
+      const linkKey = this.stat.dev + ':' + this.stat.ino
+      if (this.linkCache.has(linkKey)) {
+        const linkpath = this.linkCache.get(linkKey)
+        if (linkpath.indexOf(this.cwd) === 0) {
+          return this[HARDLINK](linkpath)
+        }
+      }
+      this.linkCache.set(linkKey, this.absolute)
+    }
+
+    this[HEADER]()
+    if (this.stat.size === 0) {
+      return this.end()
+    }
+
+    this[OPENFILE]()
+  }
+
+  [OPENFILE] () {
+    fs.open(this.absolute, 'r', (er, fd) => {
+      if (er) {
+        return this.emit('error', er)
+      }
+      this[ONOPENFILE](fd)
+    })
+  }
+
+  [ONOPENFILE] (fd) {
+    this.fd = fd
+    if (this[HAD_ERROR]) {
+      return this[CLOSE]()
+    }
+
+    this.blockLen = 512 * Math.ceil(this.stat.size / 512)
+    this.blockRemain = this.blockLen
+    const bufLen = Math.min(this.blockLen, this.maxReadSize)
+    this.buf = Buffer.allocUnsafe(bufLen)
+    this.offset = 0
+    this.pos = 0
+    this.remain = this.stat.size
+    this.length = this.buf.length
+    this[READ]()
+  }
+
+  [READ] () {
+    const { fd, buf, offset, length, pos } = this
+    fs.read(fd, buf, offset, length, pos, (er, bytesRead) => {
+      if (er) {
+        // ignoring the error from close(2) is a bad practice, but at
+        // this point we already have an error, don't need another one
+        return this[CLOSE](() => this.emit('error', er))
+      }
+      this[ONREAD](bytesRead)
+    })
+  }
+
+  [CLOSE] (cb) {
+    fs.close(this.fd, cb)
+  }
+
+  [ONREAD] (bytesRead) {
+    if (bytesRead <= 0 && this.remain > 0) {
+      const er = new Error('encountered unexpected EOF')
+      er.path = this.absolute
+      er.syscall = 'read'
+      er.code = 'EOF'
+      return this[CLOSE](() => this.emit('error', er))
+    }
+
+    if (bytesRead > this.remain) {
+      const er = new Error('did not encounter expected EOF')
+      er.path = this.absolute
+      er.syscall = 'read'
+      er.code = 'EOF'
+      return this[CLOSE](() => this.emit('error', er))
+    }
+
+    // null out the rest of the buffer, if we could fit the block padding
+    // at the end of this loop, we've incremented bytesRead and this.remain
+    // to be incremented up to the blockRemain level, as if we had expected
+    // to get a null-padded file, and read it until the end.  then we will
+    // decrement both remain and blockRemain by bytesRead, and know that we
+    // reached the expected EOF, without any null buffer to append.
+    if (bytesRead === this.remain) {
+      for (let i = bytesRead; i < this.length && bytesRead < this.blockRemain; i++) {
+        this.buf[i + this.offset] = 0
+        bytesRead++
+        this.remain++
+      }
+    }
+
+    const writeBuf = this.offset === 0 && bytesRead === this.buf.length ?
+      this.buf : this.buf.slice(this.offset, this.offset + bytesRead)
+
+    const flushed = this.write(writeBuf)
+    if (!flushed) {
+      this[AWAITDRAIN](() => this[ONDRAIN]())
+    } else {
+      this[ONDRAIN]()
+    }
+  }
+
+  [AWAITDRAIN] (cb) {
+    this.once('drain', cb)
+  }
+
+  write (writeBuf) {
+    if (this.blockRemain < writeBuf.length) {
+      const er = new Error('writing more data than expected')
+      er.path = this.absolute
+      return this.emit('error', er)
+    }
+    this.remain -= writeBuf.length
+    this.blockRemain -= writeBuf.length
+    this.pos += writeBuf.length
+    this.offset += writeBuf.length
+    return super.write(writeBuf)
+  }
+
+  [ONDRAIN] () {
+    if (!this.remain) {
+      if (this.blockRemain) {
+        super.write(Buffer.alloc(this.blockRemain))
+      }
+      return this[CLOSE](er => er ? this.emit('error', er) : this.end())
+    }
+
+    if (this.offset >= this.length) {
+      // if we only have a smaller bit left to read, alloc a smaller buffer
+      // otherwise, keep it the same length it was before.
+      this.buf = Buffer.allocUnsafe(Math.min(this.blockRemain, this.buf.length))
+      this.offset = 0
+    }
+    this.length = this.buf.length - this.offset
+    this[READ]()
+  }
+})
+
+class WriteEntrySync extends WriteEntry {
+  [LSTAT] () {
+    this[ONLSTAT](fs.lstatSync(this.absolute))
+  }
+
+  [SYMLINK] () {
+    this[ONREADLINK](fs.readlinkSync(this.absolute))
+  }
+
+  [OPENFILE] () {
+    this[ONOPENFILE](fs.openSync(this.absolute, 'r'))
+  }
+
+  [READ] () {
+    let threw = true
+    try {
+      const { fd, buf, offset, length, pos } = this
+      const bytesRead = fs.readSync(fd, buf, offset, length, pos)
+      this[ONREAD](bytesRead)
+      threw = false
+    } finally {
+      // ignoring the error from close(2) is a bad practice, but at
+      // this point we already have an error, don't need another one
+      if (threw) {
+        try {
+          this[CLOSE](() => {})
+        } catch (er) {}
+      }
+    }
+  }
+
+  [AWAITDRAIN] (cb) {
+    cb()
+  }
+
+  [CLOSE] (cb) {
+    fs.closeSync(this.fd)
+    cb()
+  }
+}
+
+const WriteEntryTar = warner(class WriteEntryTar extends Minipass {
+  constructor (readEntry, opt) {
+    opt = opt || {}
+    super(opt)
+    this.preservePaths = !!opt.preservePaths
+    this.portable = !!opt.portable
+    this.strict = !!opt.strict
+    this.noPax = !!opt.noPax
+    this.noMtime = !!opt.noMtime
+
+    this.readEntry = readEntry
+    this.type = readEntry.type
+    if (this.type === 'Directory' && this.portable) {
+      this.noMtime = true
+    }
+
+    this.prefix = opt.prefix || null
+
+    this.path = normPath(readEntry.path)
+    this.mode = this[MODE](readEntry.mode)
+    this.uid = this.portable ? null : readEntry.uid
+    this.gid = this.portable ? null : readEntry.gid
+    this.uname = this.portable ? null : readEntry.uname
+    this.gname = this.portable ? null : readEntry.gname
+    this.size = readEntry.size
+    this.mtime = this.noMtime ? null : opt.mtime || readEntry.mtime
+    this.atime = this.portable ? null : readEntry.atime
+    this.ctime = this.portable ? null : readEntry.ctime
+    this.linkpath = normPath(readEntry.linkpath)
+
+    if (typeof opt.onwarn === 'function') {
+      this.on('warn', opt.onwarn)
+    }
+
+    let pathWarn = false
+    if (!this.preservePaths) {
+      const [root, stripped] = stripAbsolutePath(this.path)
+      if (root) {
+        this.path = stripped
+        pathWarn = root
+      }
+    }
+
+    this.remain = readEntry.size
+    this.blockRemain = readEntry.startBlockSize
+
+    this.header = new Header({
+      path: this[PREFIX](this.path),
+      linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath)
+      : this.linkpath,
+      // only the permissions and setuid/setgid/sticky bitflags
+      // not the higher-order bits that specify file type
+      mode: this.mode,
+      uid: this.portable ? null : this.uid,
+      gid: this.portable ? null : this.gid,
+      size: this.size,
+      mtime: this.noMtime ? null : this.mtime,
+      type: this.type,
+      uname: this.portable ? null : this.uname,
+      atime: this.portable ? null : this.atime,
+      ctime: this.portable ? null : this.ctime,
+    })
+
+    if (pathWarn) {
+      this.warn('TAR_ENTRY_INFO', `stripping ${pathWarn} from absolute path`, {
+        entry: this,
+        path: pathWarn + this.path,
+      })
+    }
+
+    if (this.header.encode() && !this.noPax) {
+      super.write(new Pax({
+        atime: this.portable ? null : this.atime,
+        ctime: this.portable ? null : this.ctime,
+        gid: this.portable ? null : this.gid,
+        mtime: this.noMtime ? null : this.mtime,
+        path: this[PREFIX](this.path),
+        linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath)
+        : this.linkpath,
+        size: this.size,
+        uid: this.portable ? null : this.uid,
+        uname: this.portable ? null : this.uname,
+        dev: this.portable ? null : this.readEntry.dev,
+        ino: this.portable ? null : this.readEntry.ino,
+        nlink: this.portable ? null : this.readEntry.nlink,
+      }).encode())
+    }
+
+    super.write(this.header.block)
+    readEntry.pipe(this)
+  }
+
+  [PREFIX] (path) {
+    return prefixPath(path, this.prefix)
+  }
+
+  [MODE] (mode) {
+    return modeFix(mode, this.type === 'Directory', this.portable)
+  }
+
+  write (data) {
+    const writeLen = data.length
+    if (writeLen > this.blockRemain) {
+      throw new Error('writing more to entry than is appropriate')
+    }
+    this.blockRemain -= writeLen
+    return super.write(data)
+  }
+
+  end () {
+    if (this.blockRemain) {
+      super.write(Buffer.alloc(this.blockRemain))
+    }
+    return super.end()
+  }
+})
+
+WriteEntry.Sync = WriteEntrySync
+WriteEntry.Tar = WriteEntryTar
+
+const getType = stat =>
+  stat.isFile() ? 'File'
+  : stat.isDirectory() ? 'Directory'
+  : stat.isSymbolicLink() ? 'SymbolicLink'
+  : 'Unsupported'
+
+module.exports = WriteEntry
diff --git a/node_modules/tar/node_modules/minipass/LICENSE b/node_modules/tar/node_modules/minipass/LICENSE
new file mode 100644
index 0000000..97f8e32
--- /dev/null
+++ b/node_modules/tar/node_modules/minipass/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) 2017-2023 npm, Inc., Isaac Z. Schlueter, and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/tar/node_modules/minipass/README.md b/node_modules/tar/node_modules/minipass/README.md
new file mode 100644
index 0000000..6108809
--- /dev/null
+++ b/node_modules/tar/node_modules/minipass/README.md
@@ -0,0 +1,769 @@
+# minipass
+
+A _very_ minimal implementation of a [PassThrough
+stream](https://nodejs.org/api/stream.html#stream_class_stream_passthrough)
+
+[It's very
+fast](https://docs.google.com/spreadsheets/d/1K_HR5oh3r80b8WVMWCPPjfuWXUgfkmhlX7FGI6JJ8tY/edit?usp=sharing)
+for objects, strings, and buffers.
+
+Supports `pipe()`ing (including multi-`pipe()` and backpressure
+transmission), buffering data until either a `data` event handler
+or `pipe()` is added (so you don't lose the first chunk), and
+most other cases where PassThrough is a good idea.
+
+There is a `read()` method, but it's much more efficient to
+consume data from this stream via `'data'` events or by calling
+`pipe()` into some other stream. Calling `read()` requires the
+buffer to be flattened in some cases, which requires copying
+memory.
+
+If you set `objectMode: true` in the options, then whatever is
+written will be emitted. Otherwise, it'll do a minimal amount of
+Buffer copying to ensure proper Streams semantics when `read(n)`
+is called.
+
+`objectMode` can also be set by doing `stream.objectMode = true`,
+or by writing any non-string/non-buffer data. `objectMode` cannot
+be set to false once it is set.
+
+This is not a `through` or `through2` stream. It doesn't
+transform the data, it just passes it right through. If you want
+to transform the data, extend the class, and override the
+`write()` method. Once you're done transforming the data however
+you want, call `super.write()` with the transform output.
+
+For some examples of streams that extend Minipass in various
+ways, check out:
+
+- [minizlib](http://npm.im/minizlib)
+- [fs-minipass](http://npm.im/fs-minipass)
+- [tar](http://npm.im/tar)
+- [minipass-collect](http://npm.im/minipass-collect)
+- [minipass-flush](http://npm.im/minipass-flush)
+- [minipass-pipeline](http://npm.im/minipass-pipeline)
+- [tap](http://npm.im/tap)
+- [tap-parser](http://npm.im/tap-parser)
+- [treport](http://npm.im/treport)
+- [minipass-fetch](http://npm.im/minipass-fetch)
+- [pacote](http://npm.im/pacote)
+- [make-fetch-happen](http://npm.im/make-fetch-happen)
+- [cacache](http://npm.im/cacache)
+- [ssri](http://npm.im/ssri)
+- [npm-registry-fetch](http://npm.im/npm-registry-fetch)
+- [minipass-json-stream](http://npm.im/minipass-json-stream)
+- [minipass-sized](http://npm.im/minipass-sized)
+
+## Differences from Node.js Streams
+
+There are several things that make Minipass streams different
+from (and in some ways superior to) Node.js core streams.
+
+Please read these caveats if you are familiar with node-core
+streams and intend to use Minipass streams in your programs.
+
+You can avoid most of these differences entirely (for a very
+small performance penalty) by setting `{async: true}` in the
+constructor options.
+
+### Timing
+
+Minipass streams are designed to support synchronous use-cases.
+Thus, data is emitted as soon as it is available, always. It is
+buffered until read, but no longer. Another way to look at it is
+that Minipass streams are exactly as synchronous as the logic
+that writes into them.
+
+This can be surprising if your code relies on
+`PassThrough.write()` always providing data on the next tick
+rather than the current one, or being able to call `resume()` and
+not have the entire buffer disappear immediately.
+
+However, without this synchronicity guarantee, there would be no
+way for Minipass to achieve the speeds it does, or support the
+synchronous use cases that it does. Simply put, waiting takes
+time.
+
+This non-deferring approach makes Minipass streams much easier to
+reason about, especially in the context of Promises and other
+flow-control mechanisms.
+
+Example:
+
+```js
+// hybrid module, either works
+import { Minipass } from 'minipass'
+// or:
+const { Minipass } = require('minipass')
+
+const stream = new Minipass()
+stream.on('data', () => console.log('data event'))
+console.log('before write')
+stream.write('hello')
+console.log('after write')
+// output:
+// before write
+// data event
+// after write
+```
+
+### Exception: Async Opt-In
+
+If you wish to have a Minipass stream with behavior that more
+closely mimics Node.js core streams, you can set the stream in
+async mode either by setting `async: true` in the constructor
+options, or by setting `stream.async = true` later on.
+
+```js
+// hybrid module, either works
+import { Minipass } from 'minipass'
+// or:
+const { Minipass } = require('minipass')
+
+const asyncStream = new Minipass({ async: true })
+asyncStream.on('data', () => console.log('data event'))
+console.log('before write')
+asyncStream.write('hello')
+console.log('after write')
+// output:
+// before write
+// after write
+// data event <-- this is deferred until the next tick
+```
+
+Switching _out_ of async mode is unsafe, as it could cause data
+corruption, and so is not enabled. Example:
+
+```js
+import { Minipass } from 'minipass'
+const stream = new Minipass({ encoding: 'utf8' })
+stream.on('data', chunk => console.log(chunk))
+stream.async = true
+console.log('before writes')
+stream.write('hello')
+setStreamSyncAgainSomehow(stream) // <-- this doesn't actually exist!
+stream.write('world')
+console.log('after writes')
+// hypothetical output would be:
+// before writes
+// world
+// after writes
+// hello
+// NOT GOOD!
+```
+
+To avoid this problem, once set into async mode, any attempt to
+make the stream sync again will be ignored.
+
+```js
+const { Minipass } = require('minipass')
+const stream = new Minipass({ encoding: 'utf8' })
+stream.on('data', chunk => console.log(chunk))
+stream.async = true
+console.log('before writes')
+stream.write('hello')
+stream.async = false // <-- no-op, stream already async
+stream.write('world')
+console.log('after writes')
+// actual output:
+// before writes
+// after writes
+// hello
+// world
+```
+
+### No High/Low Water Marks
+
+Node.js core streams will optimistically fill up a buffer,
+returning `true` on all writes until the limit is hit, even if
+the data has nowhere to go. Then, they will not attempt to draw
+more data in until the buffer size dips below a minimum value.
+
+Minipass streams are much simpler. The `write()` method will
+return `true` if the data has somewhere to go (which is to say,
+given the timing guarantees, that the data is already there by
+the time `write()` returns).
+
+If the data has nowhere to go, then `write()` returns false, and
+the data sits in a buffer, to be drained out immediately as soon
+as anyone consumes it.
+
+Since nothing is ever buffered unnecessarily, there is much less
+copying data, and less bookkeeping about buffer capacity levels.
+
+### Hazards of Buffering (or: Why Minipass Is So Fast)
+
+Since data written to a Minipass stream is immediately written
+all the way through the pipeline, and `write()` always returns
+true/false based on whether the data was fully flushed,
+backpressure is communicated immediately to the upstream caller.
+This minimizes buffering.
+
+Consider this case:
+
+```js
+const { PassThrough } = require('stream')
+const p1 = new PassThrough({ highWaterMark: 1024 })
+const p2 = new PassThrough({ highWaterMark: 1024 })
+const p3 = new PassThrough({ highWaterMark: 1024 })
+const p4 = new PassThrough({ highWaterMark: 1024 })
+
+p1.pipe(p2).pipe(p3).pipe(p4)
+p4.on('data', () => console.log('made it through'))
+
+// this returns false and buffers, then writes to p2 on next tick (1)
+// p2 returns false and buffers, pausing p1, then writes to p3 on next tick (2)
+// p3 returns false and buffers, pausing p2, then writes to p4 on next tick (3)
+// p4 returns false and buffers, pausing p3, then emits 'data' and 'drain'
+// on next tick (4)
+// p3 sees p4's 'drain' event, and calls resume(), emitting 'resume' and
+// 'drain' on next tick (5)
+// p2 sees p3's 'drain', calls resume(), emits 'resume' and 'drain' on next tick (6)
+// p1 sees p2's 'drain', calls resume(), emits 'resume' and 'drain' on next
+// tick (7)
+
+p1.write(Buffer.alloc(2048)) // returns false
+```
+
+Along the way, the data was buffered and deferred at each stage,
+and multiple event deferrals happened, for an unblocked pipeline
+where it was perfectly safe to write all the way through!
+
+Furthermore, setting a `highWaterMark` of `1024` might lead
+someone reading the code to think an advisory maximum of 1KiB is
+being set for the pipeline. However, the actual advisory
+buffering level is the _sum_ of `highWaterMark` values, since
+each one has its own bucket.
+
+Consider the Minipass case:
+
+```js
+const m1 = new Minipass()
+const m2 = new Minipass()
+const m3 = new Minipass()
+const m4 = new Minipass()
+
+m1.pipe(m2).pipe(m3).pipe(m4)
+m4.on('data', () => console.log('made it through'))
+
+// m1 is flowing, so it writes the data to m2 immediately
+// m2 is flowing, so it writes the data to m3 immediately
+// m3 is flowing, so it writes the data to m4 immediately
+// m4 is flowing, so it fires the 'data' event immediately, returns true
+// m4's write returned true, so m3 is still flowing, returns true
+// m3's write returned true, so m2 is still flowing, returns true
+// m2's write returned true, so m1 is still flowing, returns true
+// No event deferrals or buffering along the way!
+
+m1.write(Buffer.alloc(2048)) // returns true
+```
+
+It is extremely unlikely that you _don't_ want to buffer any data
+written, or _ever_ buffer data that can be flushed all the way
+through. Neither node-core streams nor Minipass ever fail to
+buffer written data, but node-core streams do a lot of
+unnecessary buffering and pausing.
+
+As always, the faster implementation is the one that does less
+stuff and waits less time to do it.
+
+### Immediately emit `end` for empty streams (when not paused)
+
+If a stream is not paused, and `end()` is called before writing
+any data into it, then it will emit `end` immediately.
+
+If you have logic that occurs on the `end` event which you don't
+want to potentially happen immediately (for example, closing file
+descriptors, moving on to the next entry in an archive parse
+stream, etc.) then be sure to call `stream.pause()` on creation,
+and then `stream.resume()` once you are ready to respond to the
+`end` event.
+
+However, this is _usually_ not a problem because:
+
+### Emit `end` When Asked
+
+One hazard of immediately emitting `'end'` is that you may not
+yet have had a chance to add a listener. In order to avoid this
+hazard, Minipass streams safely re-emit the `'end'` event if a
+new listener is added after `'end'` has been emitted.
+
+Ie, if you do `stream.on('end', someFunction)`, and the stream
+has already emitted `end`, then it will call the handler right
+away. (You can think of this somewhat like attaching a new
+`.then(fn)` to a previously-resolved Promise.)
+
+To prevent calling handlers multiple times who would not expect
+multiple ends to occur, all listeners are removed from the
+`'end'` event whenever it is emitted.
+
+### Emit `error` When Asked
+
+The most recent error object passed to the `'error'` event is
+stored on the stream. If a new `'error'` event handler is added,
+and an error was previously emitted, then the event handler will
+be called immediately (or on `process.nextTick` in the case of
+async streams).
+
+This makes it much more difficult to end up trying to interact
+with a broken stream, if the error handler is added after an
+error was previously emitted.
+
+### Impact of "immediate flow" on Tee-streams
+
+A "tee stream" is a stream piping to multiple destinations:
+
+```js
+const tee = new Minipass()
+t.pipe(dest1)
+t.pipe(dest2)
+t.write('foo') // goes to both destinations
+```
+
+Since Minipass streams _immediately_ process any pending data
+through the pipeline when a new pipe destination is added, this
+can have surprising effects, especially when a stream comes in
+from some other function and may or may not have data in its
+buffer.
+
+```js
+// WARNING! WILL LOSE DATA!
+const src = new Minipass()
+src.write('foo')
+src.pipe(dest1) // 'foo' chunk flows to dest1 immediately, and is gone
+src.pipe(dest2) // gets nothing!
+```
+
+One solution is to create a dedicated tee-stream junction that
+pipes to both locations, and then pipe to _that_ instead.
+
+```js
+// Safe example: tee to both places
+const src = new Minipass()
+src.write('foo')
+const tee = new Minipass()
+tee.pipe(dest1)
+tee.pipe(dest2)
+src.pipe(tee) // tee gets 'foo', pipes to both locations
+```
+
+The same caveat applies to `on('data')` event listeners. The
+first one added will _immediately_ receive all of the data,
+leaving nothing for the second:
+
+```js
+// WARNING! WILL LOSE DATA!
+const src = new Minipass()
+src.write('foo')
+src.on('data', handler1) // receives 'foo' right away
+src.on('data', handler2) // nothing to see here!
+```
+
+Using a dedicated tee-stream can be used in this case as well:
+
+```js
+// Safe example: tee to both data handlers
+const src = new Minipass()
+src.write('foo')
+const tee = new Minipass()
+tee.on('data', handler1)
+tee.on('data', handler2)
+src.pipe(tee)
+```
+
+All of the hazards in this section are avoided by setting `{
+async: true }` in the Minipass constructor, or by setting
+`stream.async = true` afterwards. Note that this does add some
+overhead, so should only be done in cases where you are willing
+to lose a bit of performance in order to avoid having to refactor
+program logic.
+
+## USAGE
+
+It's a stream! Use it like a stream and it'll most likely do what
+you want.
+
+```js
+import { Minipass } from 'minipass'
+const mp = new Minipass(options) // optional: { encoding, objectMode }
+mp.write('foo')
+mp.pipe(someOtherStream)
+mp.end('bar')
+```
+
+### OPTIONS
+
+- `encoding` How would you like the data coming _out_ of the
+  stream to be encoded? Accepts any values that can be passed to
+  `Buffer.toString()`.
+- `objectMode` Emit data exactly as it comes in. This will be
+  flipped on by default if you write() something other than a
+  string or Buffer at any point. Setting `objectMode: true` will
+  prevent setting any encoding value.
+- `async` Defaults to `false`. Set to `true` to defer data
+  emission until next tick. This reduces performance slightly,
+  but makes Minipass streams use timing behavior closer to Node
+  core streams. See [Timing](#timing) for more details.
+- `signal` An `AbortSignal` that will cause the stream to unhook
+  itself from everything and become as inert as possible. Note
+  that providing a `signal` parameter will make `'error'` events
+  no longer throw if they are unhandled, but they will still be
+  emitted to handlers if any are attached.
+
+### API
+
+Implements the user-facing portions of Node.js's `Readable` and
+`Writable` streams.
+
+### Methods
+
+- `write(chunk, [encoding], [callback])` - Put data in. (Note
+  that, in the base Minipass class, the same data will come out.)
+  Returns `false` if the stream will buffer the next write, or
+  true if it's still in "flowing" mode.
+- `end([chunk, [encoding]], [callback])` - Signal that you have
+  no more data to write. This will queue an `end` event to be
+  fired when all the data has been consumed.
+- `setEncoding(encoding)` - Set the encoding for data coming of
+  the stream. This can only be done once.
+- `pause()` - No more data for a while, please. This also
+  prevents `end` from being emitted for empty streams until the
+  stream is resumed.
+- `resume()` - Resume the stream. If there's data in the buffer,
+  it is all discarded. Any buffered events are immediately
+  emitted.
+- `pipe(dest)` - Send all output to the stream provided. When
+  data is emitted, it is immediately written to any and all pipe
+  destinations. (Or written on next tick in `async` mode.)
+- `unpipe(dest)` - Stop piping to the destination stream. This is
+  immediate, meaning that any asynchronously queued data will
+  _not_ make it to the destination when running in `async` mode.
+  - `options.end` - Boolean, end the destination stream when the
+    source stream ends. Default `true`.
+  - `options.proxyErrors` - Boolean, proxy `error` events from
+    the source stream to the destination stream. Note that errors
+    are _not_ proxied after the pipeline terminates, either due
+    to the source emitting `'end'` or manually unpiping with
+    `src.unpipe(dest)`. Default `false`.
+- `on(ev, fn)`, `emit(ev, fn)` - Minipass streams are
+  EventEmitters. Some events are given special treatment,
+  however. (See below under "events".)
+- `promise()` - Returns a Promise that resolves when the stream
+  emits `end`, or rejects if the stream emits `error`.
+- `collect()` - Return a Promise that resolves on `end` with an
+  array containing each chunk of data that was emitted, or
+  rejects if the stream emits `error`. Note that this consumes
+  the stream data.
+- `concat()` - Same as `collect()`, but concatenates the data
+  into a single Buffer object. Will reject the returned promise
+  if the stream is in objectMode, or if it goes into objectMode
+  by the end of the data.
+- `read(n)` - Consume `n` bytes of data out of the buffer. If `n`
+  is not provided, then consume all of it. If `n` bytes are not
+  available, then it returns null. **Note** consuming streams in
+  this way is less efficient, and can lead to unnecessary Buffer
+  copying.
+- `destroy([er])` - Destroy the stream. If an error is provided,
+  then an `'error'` event is emitted. If the stream has a
+  `close()` method, and has not emitted a `'close'` event yet,
+  then `stream.close()` will be called. Any Promises returned by
+  `.promise()`, `.collect()` or `.concat()` will be rejected.
+  After being destroyed, writing to the stream will emit an
+  error. No more data will be emitted if the stream is destroyed,
+  even if it was previously buffered.
+
+### Properties
+
+- `bufferLength` Read-only. Total number of bytes buffered, or in
+  the case of objectMode, the total number of objects.
+- `encoding` The encoding that has been set. (Setting this is
+  equivalent to calling `setEncoding(enc)` and has the same
+  prohibition against setting multiple times.)
+- `flowing` Read-only. Boolean indicating whether a chunk written
+  to the stream will be immediately emitted.
+- `emittedEnd` Read-only. Boolean indicating whether the end-ish
+  events (ie, `end`, `prefinish`, `finish`) have been emitted.
+  Note that listening on any end-ish event will immediateyl
+  re-emit it if it has already been emitted.
+- `writable` Whether the stream is writable. Default `true`. Set
+  to `false` when `end()`
+- `readable` Whether the stream is readable. Default `true`.
+- `pipes` An array of Pipe objects referencing streams that this
+  stream is piping into.
+- `destroyed` A getter that indicates whether the stream was
+  destroyed.
+- `paused` True if the stream has been explicitly paused,
+  otherwise false.
+- `objectMode` Indicates whether the stream is in `objectMode`.
+  Once set to `true`, it cannot be set to `false`.
+- `aborted` Readonly property set when the `AbortSignal`
+  dispatches an `abort` event.
+
+### Events
+
+- `data` Emitted when there's data to read. Argument is the data
+  to read. This is never emitted while not flowing. If a listener
+  is attached, that will resume the stream.
+- `end` Emitted when there's no more data to read. This will be
+  emitted immediately for empty streams when `end()` is called.
+  If a listener is attached, and `end` was already emitted, then
+  it will be emitted again. All listeners are removed when `end`
+  is emitted.
+- `prefinish` An end-ish event that follows the same logic as
+  `end` and is emitted in the same conditions where `end` is
+  emitted. Emitted after `'end'`.
+- `finish` An end-ish event that follows the same logic as `end`
+  and is emitted in the same conditions where `end` is emitted.
+  Emitted after `'prefinish'`.
+- `close` An indication that an underlying resource has been
+  released. Minipass does not emit this event, but will defer it
+  until after `end` has been emitted, since it throws off some
+  stream libraries otherwise.
+- `drain` Emitted when the internal buffer empties, and it is
+  again suitable to `write()` into the stream.
+- `readable` Emitted when data is buffered and ready to be read
+  by a consumer.
+- `resume` Emitted when stream changes state from buffering to
+  flowing mode. (Ie, when `resume` is called, `pipe` is called,
+  or a `data` event listener is added.)
+
+### Static Methods
+
+- `Minipass.isStream(stream)` Returns `true` if the argument is a
+  stream, and false otherwise. To be considered a stream, the
+  object must be either an instance of Minipass, or an
+  EventEmitter that has either a `pipe()` method, or both
+  `write()` and `end()` methods. (Pretty much any stream in
+  node-land will return `true` for this.)
+
+## EXAMPLES
+
+Here are some examples of things you can do with Minipass
+streams.
+
+### simple "are you done yet" promise
+
+```js
+mp.promise().then(
+  () => {
+    // stream is finished
+  },
+  er => {
+    // stream emitted an error
+  }
+)
+```
+
+### collecting
+
+```js
+mp.collect().then(all => {
+  // all is an array of all the data emitted
+  // encoding is supported in this case, so
+  // so the result will be a collection of strings if
+  // an encoding is specified, or buffers/objects if not.
+  //
+  // In an async function, you may do
+  // const data = await stream.collect()
+})
+```
+
+### collecting into a single blob
+
+This is a bit slower because it concatenates the data into one
+chunk for you, but if you're going to do it yourself anyway, it's
+convenient this way:
+
+```js
+mp.concat().then(onebigchunk => {
+  // onebigchunk is a string if the stream
+  // had an encoding set, or a buffer otherwise.
+})
+```
+
+### iteration
+
+You can iterate over streams synchronously or asynchronously in
+platforms that support it.
+
+Synchronous iteration will end when the currently available data
+is consumed, even if the `end` event has not been reached. In
+string and buffer mode, the data is concatenated, so unless
+multiple writes are occurring in the same tick as the `read()`,
+sync iteration loops will generally only have a single iteration.
+
+To consume chunks in this way exactly as they have been written,
+with no flattening, create the stream with the `{ objectMode:
+true }` option.
+
+```js
+const mp = new Minipass({ objectMode: true })
+mp.write('a')
+mp.write('b')
+for (let letter of mp) {
+  console.log(letter) // a, b
+}
+mp.write('c')
+mp.write('d')
+for (let letter of mp) {
+  console.log(letter) // c, d
+}
+mp.write('e')
+mp.end()
+for (let letter of mp) {
+  console.log(letter) // e
+}
+for (let letter of mp) {
+  console.log(letter) // nothing
+}
+```
+
+Asynchronous iteration will continue until the end event is reached,
+consuming all of the data.
+
+```js
+const mp = new Minipass({ encoding: 'utf8' })
+
+// some source of some data
+let i = 5
+const inter = setInterval(() => {
+  if (i-- > 0) mp.write(Buffer.from('foo\n', 'utf8'))
+  else {
+    mp.end()
+    clearInterval(inter)
+  }
+}, 100)
+
+// consume the data with asynchronous iteration
+async function consume() {
+  for await (let chunk of mp) {
+    console.log(chunk)
+  }
+  return 'ok'
+}
+
+consume().then(res => console.log(res))
+// logs `foo\n` 5 times, and then `ok`
+```
+
+### subclass that `console.log()`s everything written into it
+
+```js
+class Logger extends Minipass {
+  write(chunk, encoding, callback) {
+    console.log('WRITE', chunk, encoding)
+    return super.write(chunk, encoding, callback)
+  }
+  end(chunk, encoding, callback) {
+    console.log('END', chunk, encoding)
+    return super.end(chunk, encoding, callback)
+  }
+}
+
+someSource.pipe(new Logger()).pipe(someDest)
+```
+
+### same thing, but using an inline anonymous class
+
+```js
+// js classes are fun
+someSource
+  .pipe(
+    new (class extends Minipass {
+      emit(ev, ...data) {
+        // let's also log events, because debugging some weird thing
+        console.log('EMIT', ev)
+        return super.emit(ev, ...data)
+      }
+      write(chunk, encoding, callback) {
+        console.log('WRITE', chunk, encoding)
+        return super.write(chunk, encoding, callback)
+      }
+      end(chunk, encoding, callback) {
+        console.log('END', chunk, encoding)
+        return super.end(chunk, encoding, callback)
+      }
+    })()
+  )
+  .pipe(someDest)
+```
+
+### subclass that defers 'end' for some reason
+
+```js
+class SlowEnd extends Minipass {
+  emit(ev, ...args) {
+    if (ev === 'end') {
+      console.log('going to end, hold on a sec')
+      setTimeout(() => {
+        console.log('ok, ready to end now')
+        super.emit('end', ...args)
+      }, 100)
+    } else {
+      return super.emit(ev, ...args)
+    }
+  }
+}
+```
+
+### transform that creates newline-delimited JSON
+
+```js
+class NDJSONEncode extends Minipass {
+  write(obj, cb) {
+    try {
+      // JSON.stringify can throw, emit an error on that
+      return super.write(JSON.stringify(obj) + '\n', 'utf8', cb)
+    } catch (er) {
+      this.emit('error', er)
+    }
+  }
+  end(obj, cb) {
+    if (typeof obj === 'function') {
+      cb = obj
+      obj = undefined
+    }
+    if (obj !== undefined) {
+      this.write(obj)
+    }
+    return super.end(cb)
+  }
+}
+```
+
+### transform that parses newline-delimited JSON
+
+```js
+class NDJSONDecode extends Minipass {
+  constructor (options) {
+    // always be in object mode, as far as Minipass is concerned
+    super({ objectMode: true })
+    this._jsonBuffer = ''
+  }
+  write (chunk, encoding, cb) {
+    if (typeof chunk === 'string' &&
+        typeof encoding === 'string' &&
+        encoding !== 'utf8') {
+      chunk = Buffer.from(chunk, encoding).toString()
+    } else if (Buffer.isBuffer(chunk)) {
+      chunk = chunk.toString()
+    }
+    if (typeof encoding === 'function') {
+      cb = encoding
+    }
+    const jsonData = (this._jsonBuffer + chunk).split('\n')
+    this._jsonBuffer = jsonData.pop()
+    for (let i = 0; i < jsonData.length; i++) {
+      try {
+        // JSON.parse can throw, emit an error on that
+        super.write(JSON.parse(jsonData[i]))
+      } catch (er) {
+        this.emit('error', er)
+        continue
+      }
+    }
+    if (cb)
+      cb()
+  }
+}
+```
diff --git a/node_modules/tar/node_modules/minipass/index.d.ts b/node_modules/tar/node_modules/minipass/index.d.ts
new file mode 100644
index 0000000..86851f9
--- /dev/null
+++ b/node_modules/tar/node_modules/minipass/index.d.ts
@@ -0,0 +1,152 @@
+/// <reference types="node" />
+
+// Note: marking anything protected or private in the exported
+// class will limit Minipass's ability to be used as the base
+// for mixin classes.
+import { EventEmitter } from 'events'
+import { Stream } from 'stream'
+
+export namespace Minipass {
+  export type Encoding = BufferEncoding | 'buffer' | null
+
+  export interface Writable extends EventEmitter {
+    end(): any
+    write(chunk: any, ...args: any[]): any
+  }
+
+  export interface Readable extends EventEmitter {
+    pause(): any
+    resume(): any
+    pipe(): any
+  }
+
+  export type DualIterable<T> = Iterable<T> & AsyncIterable<T>
+
+  export type ContiguousData =
+    | Buffer
+    | ArrayBufferLike
+    | ArrayBufferView
+    | string
+
+  export type BufferOrString = Buffer | string
+
+  export interface SharedOptions {
+    async?: boolean
+    signal?: AbortSignal
+  }
+
+  export interface StringOptions extends SharedOptions {
+    encoding: BufferEncoding
+    objectMode?: boolean
+  }
+
+  export interface BufferOptions extends SharedOptions {
+    encoding?: null | 'buffer'
+    objectMode?: boolean
+  }
+
+  export interface ObjectModeOptions extends SharedOptions {
+    objectMode: true
+  }
+
+  export interface PipeOptions {
+    end?: boolean
+    proxyErrors?: boolean
+  }
+
+  export type Options<T> = T extends string
+    ? StringOptions
+    : T extends Buffer
+    ? BufferOptions
+    : ObjectModeOptions
+}
+
+export class Minipass<
+    RType extends any = Buffer,
+    WType extends any = RType extends Minipass.BufferOrString
+      ? Minipass.ContiguousData
+      : RType
+  >
+  extends Stream
+  implements Minipass.DualIterable<RType>
+{
+  static isStream(stream: any): stream is Minipass.Readable | Minipass.Writable
+
+  readonly bufferLength: number
+  readonly flowing: boolean
+  readonly writable: boolean
+  readonly readable: boolean
+  readonly aborted: boolean
+  readonly paused: boolean
+  readonly emittedEnd: boolean
+  readonly destroyed: boolean
+
+  /**
+   * Technically writable, but mutating it can change the type,
+   * so is not safe to do in TypeScript.
+   */
+  readonly objectMode: boolean
+  async: boolean
+
+  /**
+   * Note: encoding is not actually read-only, and setEncoding(enc)
+   * exists. However, this type definition will insist that TypeScript
+   * programs declare the type of a Minipass stream up front, and if
+   * that type is string, then an encoding MUST be set in the ctor. If
+   * the type is Buffer, then the encoding must be missing, or set to
+   * 'buffer' or null. If the type is anything else, then objectMode
+   * must be set in the constructor options.  So there is effectively
+   * no allowed way that a TS program can set the encoding after
+   * construction, as doing so will destroy any hope of type safety.
+   * TypeScript does not provide many options for changing the type of
+   * an object at run-time, which is what changing the encoding does.
+   */
+  readonly encoding: Minipass.Encoding
+  // setEncoding(encoding: Encoding): void
+
+  // Options required if not reading buffers
+  constructor(
+    ...args: RType extends Buffer
+      ? [] | [Minipass.Options<RType>]
+      : [Minipass.Options<RType>]
+  )
+
+  write(chunk: WType, cb?: () => void): boolean
+  write(chunk: WType, encoding?: Minipass.Encoding, cb?: () => void): boolean
+  read(size?: number): RType
+  end(cb?: () => void): this
+  end(chunk: any, cb?: () => void): this
+  end(chunk: any, encoding?: Minipass.Encoding, cb?: () => void): this
+  pause(): void
+  resume(): void
+  promise(): Promise<void>
+  collect(): Promise<RType[]>
+
+  concat(): RType extends Minipass.BufferOrString ? Promise<RType> : never
+  destroy(er?: any): void
+  pipe<W extends Minipass.Writable>(dest: W, opts?: Minipass.PipeOptions): W
+  unpipe<W extends Minipass.Writable>(dest: W): void
+
+  /**
+   * alias for on()
+   */
+  addEventHandler(event: string, listener: (...args: any[]) => any): this
+
+  on(event: string, listener: (...args: any[]) => any): this
+  on(event: 'data', listener: (chunk: RType) => any): this
+  on(event: 'error', listener: (error: any) => any): this
+  on(
+    event:
+      | 'readable'
+      | 'drain'
+      | 'resume'
+      | 'end'
+      | 'prefinish'
+      | 'finish'
+      | 'close',
+    listener: () => any
+  ): this
+
+  [Symbol.iterator](): Generator<RType, void, void>
+  [Symbol.asyncIterator](): AsyncGenerator<RType, void, void>
+}
diff --git a/node_modules/tar/node_modules/minipass/index.js b/node_modules/tar/node_modules/minipass/index.js
new file mode 100644
index 0000000..ed07c17
--- /dev/null
+++ b/node_modules/tar/node_modules/minipass/index.js
@@ -0,0 +1,702 @@
+'use strict'
+const proc =
+  typeof process === 'object' && process
+    ? process
+    : {
+        stdout: null,
+        stderr: null,
+      }
+const EE = require('events')
+const Stream = require('stream')
+const stringdecoder = require('string_decoder')
+const SD = stringdecoder.StringDecoder
+
+const EOF = Symbol('EOF')
+const MAYBE_EMIT_END = Symbol('maybeEmitEnd')
+const EMITTED_END = Symbol('emittedEnd')
+const EMITTING_END = Symbol('emittingEnd')
+const EMITTED_ERROR = Symbol('emittedError')
+const CLOSED = Symbol('closed')
+const READ = Symbol('read')
+const FLUSH = Symbol('flush')
+const FLUSHCHUNK = Symbol('flushChunk')
+const ENCODING = Symbol('encoding')
+const DECODER = Symbol('decoder')
+const FLOWING = Symbol('flowing')
+const PAUSED = Symbol('paused')
+const RESUME = Symbol('resume')
+const BUFFER = Symbol('buffer')
+const PIPES = Symbol('pipes')
+const BUFFERLENGTH = Symbol('bufferLength')
+const BUFFERPUSH = Symbol('bufferPush')
+const BUFFERSHIFT = Symbol('bufferShift')
+const OBJECTMODE = Symbol('objectMode')
+// internal event when stream is destroyed
+const DESTROYED = Symbol('destroyed')
+// internal event when stream has an error
+const ERROR = Symbol('error')
+const EMITDATA = Symbol('emitData')
+const EMITEND = Symbol('emitEnd')
+const EMITEND2 = Symbol('emitEnd2')
+const ASYNC = Symbol('async')
+const ABORT = Symbol('abort')
+const ABORTED = Symbol('aborted')
+const SIGNAL = Symbol('signal')
+
+const defer = fn => Promise.resolve().then(fn)
+
+// TODO remove when Node v8 support drops
+const doIter = global._MP_NO_ITERATOR_SYMBOLS_ !== '1'
+const ASYNCITERATOR =
+  (doIter && Symbol.asyncIterator) || Symbol('asyncIterator not implemented')
+const ITERATOR =
+  (doIter && Symbol.iterator) || Symbol('iterator not implemented')
+
+// events that mean 'the stream is over'
+// these are treated specially, and re-emitted
+// if they are listened for after emitting.
+const isEndish = ev => ev === 'end' || ev === 'finish' || ev === 'prefinish'
+
+const isArrayBuffer = b =>
+  b instanceof ArrayBuffer ||
+  (typeof b === 'object' &&
+    b.constructor &&
+    b.constructor.name === 'ArrayBuffer' &&
+    b.byteLength >= 0)
+
+const isArrayBufferView = b => !Buffer.isBuffer(b) && ArrayBuffer.isView(b)
+
+class Pipe {
+  constructor(src, dest, opts) {
+    this.src = src
+    this.dest = dest
+    this.opts = opts
+    this.ondrain = () => src[RESUME]()
+    dest.on('drain', this.ondrain)
+  }
+  unpipe() {
+    this.dest.removeListener('drain', this.ondrain)
+  }
+  // istanbul ignore next - only here for the prototype
+  proxyErrors() {}
+  end() {
+    this.unpipe()
+    if (this.opts.end) this.dest.end()
+  }
+}
+
+class PipeProxyErrors extends Pipe {
+  unpipe() {
+    this.src.removeListener('error', this.proxyErrors)
+    super.unpipe()
+  }
+  constructor(src, dest, opts) {
+    super(src, dest, opts)
+    this.proxyErrors = er => dest.emit('error', er)
+    src.on('error', this.proxyErrors)
+  }
+}
+
+class Minipass extends Stream {
+  constructor(options) {
+    super()
+    this[FLOWING] = false
+    // whether we're explicitly paused
+    this[PAUSED] = false
+    this[PIPES] = []
+    this[BUFFER] = []
+    this[OBJECTMODE] = (options && options.objectMode) || false
+    if (this[OBJECTMODE]) this[ENCODING] = null
+    else this[ENCODING] = (options && options.encoding) || null
+    if (this[ENCODING] === 'buffer') this[ENCODING] = null
+    this[ASYNC] = (options && !!options.async) || false
+    this[DECODER] = this[ENCODING] ? new SD(this[ENCODING]) : null
+    this[EOF] = false
+    this[EMITTED_END] = false
+    this[EMITTING_END] = false
+    this[CLOSED] = false
+    this[EMITTED_ERROR] = null
+    this.writable = true
+    this.readable = true
+    this[BUFFERLENGTH] = 0
+    this[DESTROYED] = false
+    if (options && options.debugExposeBuffer === true) {
+      Object.defineProperty(this, 'buffer', { get: () => this[BUFFER] })
+    }
+    if (options && options.debugExposePipes === true) {
+      Object.defineProperty(this, 'pipes', { get: () => this[PIPES] })
+    }
+    this[SIGNAL] = options && options.signal
+    this[ABORTED] = false
+    if (this[SIGNAL]) {
+      this[SIGNAL].addEventListener('abort', () => this[ABORT]())
+      if (this[SIGNAL].aborted) {
+        this[ABORT]()
+      }
+    }
+  }
+
+  get bufferLength() {
+    return this[BUFFERLENGTH]
+  }
+
+  get encoding() {
+    return this[ENCODING]
+  }
+  set encoding(enc) {
+    if (this[OBJECTMODE]) throw new Error('cannot set encoding in objectMode')
+
+    if (
+      this[ENCODING] &&
+      enc !== this[ENCODING] &&
+      ((this[DECODER] && this[DECODER].lastNeed) || this[BUFFERLENGTH])
+    )
+      throw new Error('cannot change encoding')
+
+    if (this[ENCODING] !== enc) {
+      this[DECODER] = enc ? new SD(enc) : null
+      if (this[BUFFER].length)
+        this[BUFFER] = this[BUFFER].map(chunk => this[DECODER].write(chunk))
+    }
+
+    this[ENCODING] = enc
+  }
+
+  setEncoding(enc) {
+    this.encoding = enc
+  }
+
+  get objectMode() {
+    return this[OBJECTMODE]
+  }
+  set objectMode(om) {
+    this[OBJECTMODE] = this[OBJECTMODE] || !!om
+  }
+
+  get ['async']() {
+    return this[ASYNC]
+  }
+  set ['async'](a) {
+    this[ASYNC] = this[ASYNC] || !!a
+  }
+
+  // drop everything and get out of the flow completely
+  [ABORT]() {
+    this[ABORTED] = true
+    this.emit('abort', this[SIGNAL].reason)
+    this.destroy(this[SIGNAL].reason)
+  }
+
+  get aborted() {
+    return this[ABORTED]
+  }
+  set aborted(_) {}
+
+  write(chunk, encoding, cb) {
+    if (this[ABORTED]) return false
+    if (this[EOF]) throw new Error('write after end')
+
+    if (this[DESTROYED]) {
+      this.emit(
+        'error',
+        Object.assign(
+          new Error('Cannot call write after a stream was destroyed'),
+          { code: 'ERR_STREAM_DESTROYED' }
+        )
+      )
+      return true
+    }
+
+    if (typeof encoding === 'function') (cb = encoding), (encoding = 'utf8')
+
+    if (!encoding) encoding = 'utf8'
+
+    const fn = this[ASYNC] ? defer : f => f()
+
+    // convert array buffers and typed array views into buffers
+    // at some point in the future, we may want to do the opposite!
+    // leave strings and buffers as-is
+    // anything else switches us into object mode
+    if (!this[OBJECTMODE] && !Buffer.isBuffer(chunk)) {
+      if (isArrayBufferView(chunk))
+        chunk = Buffer.from(chunk.buffer, chunk.byteOffset, chunk.byteLength)
+      else if (isArrayBuffer(chunk)) chunk = Buffer.from(chunk)
+      else if (typeof chunk !== 'string')
+        // use the setter so we throw if we have encoding set
+        this.objectMode = true
+    }
+
+    // handle object mode up front, since it's simpler
+    // this yields better performance, fewer checks later.
+    if (this[OBJECTMODE]) {
+      /* istanbul ignore if - maybe impossible? */
+      if (this.flowing && this[BUFFERLENGTH] !== 0) this[FLUSH](true)
+
+      if (this.flowing) this.emit('data', chunk)
+      else this[BUFFERPUSH](chunk)
+
+      if (this[BUFFERLENGTH] !== 0) this.emit('readable')
+
+      if (cb) fn(cb)
+
+      return this.flowing
+    }
+
+    // at this point the chunk is a buffer or string
+    // don't buffer it up or send it to the decoder
+    if (!chunk.length) {
+      if (this[BUFFERLENGTH] !== 0) this.emit('readable')
+      if (cb) fn(cb)
+      return this.flowing
+    }
+
+    // fast-path writing strings of same encoding to a stream with
+    // an empty buffer, skipping the buffer/decoder dance
+    if (
+      typeof chunk === 'string' &&
+      // unless it is a string already ready for us to use
+      !(encoding === this[ENCODING] && !this[DECODER].lastNeed)
+    ) {
+      chunk = Buffer.from(chunk, encoding)
+    }
+
+    if (Buffer.isBuffer(chunk) && this[ENCODING])
+      chunk = this[DECODER].write(chunk)
+
+    // Note: flushing CAN potentially switch us into not-flowing mode
+    if (this.flowing && this[BUFFERLENGTH] !== 0) this[FLUSH](true)
+
+    if (this.flowing) this.emit('data', chunk)
+    else this[BUFFERPUSH](chunk)
+
+    if (this[BUFFERLENGTH] !== 0) this.emit('readable')
+
+    if (cb) fn(cb)
+
+    return this.flowing
+  }
+
+  read(n) {
+    if (this[DESTROYED]) return null
+
+    if (this[BUFFERLENGTH] === 0 || n === 0 || n > this[BUFFERLENGTH]) {
+      this[MAYBE_EMIT_END]()
+      return null
+    }
+
+    if (this[OBJECTMODE]) n = null
+
+    if (this[BUFFER].length > 1 && !this[OBJECTMODE]) {
+      if (this.encoding) this[BUFFER] = [this[BUFFER].join('')]
+      else this[BUFFER] = [Buffer.concat(this[BUFFER], this[BUFFERLENGTH])]
+    }
+
+    const ret = this[READ](n || null, this[BUFFER][0])
+    this[MAYBE_EMIT_END]()
+    return ret
+  }
+
+  [READ](n, chunk) {
+    if (n === chunk.length || n === null) this[BUFFERSHIFT]()
+    else {
+      this[BUFFER][0] = chunk.slice(n)
+      chunk = chunk.slice(0, n)
+      this[BUFFERLENGTH] -= n
+    }
+
+    this.emit('data', chunk)
+
+    if (!this[BUFFER].length && !this[EOF]) this.emit('drain')
+
+    return chunk
+  }
+
+  end(chunk, encoding, cb) {
+    if (typeof chunk === 'function') (cb = chunk), (chunk = null)
+    if (typeof encoding === 'function') (cb = encoding), (encoding = 'utf8')
+    if (chunk) this.write(chunk, encoding)
+    if (cb) this.once('end', cb)
+    this[EOF] = true
+    this.writable = false
+
+    // if we haven't written anything, then go ahead and emit,
+    // even if we're not reading.
+    // we'll re-emit if a new 'end' listener is added anyway.
+    // This makes MP more suitable to write-only use cases.
+    if (this.flowing || !this[PAUSED]) this[MAYBE_EMIT_END]()
+    return this
+  }
+
+  // don't let the internal resume be overwritten
+  [RESUME]() {
+    if (this[DESTROYED]) return
+
+    this[PAUSED] = false
+    this[FLOWING] = true
+    this.emit('resume')
+    if (this[BUFFER].length) this[FLUSH]()
+    else if (this[EOF]) this[MAYBE_EMIT_END]()
+    else this.emit('drain')
+  }
+
+  resume() {
+    return this[RESUME]()
+  }
+
+  pause() {
+    this[FLOWING] = false
+    this[PAUSED] = true
+  }
+
+  get destroyed() {
+    return this[DESTROYED]
+  }
+
+  get flowing() {
+    return this[FLOWING]
+  }
+
+  get paused() {
+    return this[PAUSED]
+  }
+
+  [BUFFERPUSH](chunk) {
+    if (this[OBJECTMODE]) this[BUFFERLENGTH] += 1
+    else this[BUFFERLENGTH] += chunk.length
+    this[BUFFER].push(chunk)
+  }
+
+  [BUFFERSHIFT]() {
+    if (this[OBJECTMODE]) this[BUFFERLENGTH] -= 1
+    else this[BUFFERLENGTH] -= this[BUFFER][0].length
+    return this[BUFFER].shift()
+  }
+
+  [FLUSH](noDrain) {
+    do {} while (this[FLUSHCHUNK](this[BUFFERSHIFT]()) && this[BUFFER].length)
+
+    if (!noDrain && !this[BUFFER].length && !this[EOF]) this.emit('drain')
+  }
+
+  [FLUSHCHUNK](chunk) {
+    this.emit('data', chunk)
+    return this.flowing
+  }
+
+  pipe(dest, opts) {
+    if (this[DESTROYED]) return
+
+    const ended = this[EMITTED_END]
+    opts = opts || {}
+    if (dest === proc.stdout || dest === proc.stderr) opts.end = false
+    else opts.end = opts.end !== false
+    opts.proxyErrors = !!opts.proxyErrors
+
+    // piping an ended stream ends immediately
+    if (ended) {
+      if (opts.end) dest.end()
+    } else {
+      this[PIPES].push(
+        !opts.proxyErrors
+          ? new Pipe(this, dest, opts)
+          : new PipeProxyErrors(this, dest, opts)
+      )
+      if (this[ASYNC]) defer(() => this[RESUME]())
+      else this[RESUME]()
+    }
+
+    return dest
+  }
+
+  unpipe(dest) {
+    const p = this[PIPES].find(p => p.dest === dest)
+    if (p) {
+      this[PIPES].splice(this[PIPES].indexOf(p), 1)
+      p.unpipe()
+    }
+  }
+
+  addListener(ev, fn) {
+    return this.on(ev, fn)
+  }
+
+  on(ev, fn) {
+    const ret = super.on(ev, fn)
+    if (ev === 'data' && !this[PIPES].length && !this.flowing) this[RESUME]()
+    else if (ev === 'readable' && this[BUFFERLENGTH] !== 0)
+      super.emit('readable')
+    else if (isEndish(ev) && this[EMITTED_END]) {
+      super.emit(ev)
+      this.removeAllListeners(ev)
+    } else if (ev === 'error' && this[EMITTED_ERROR]) {
+      if (this[ASYNC]) defer(() => fn.call(this, this[EMITTED_ERROR]))
+      else fn.call(this, this[EMITTED_ERROR])
+    }
+    return ret
+  }
+
+  get emittedEnd() {
+    return this[EMITTED_END]
+  }
+
+  [MAYBE_EMIT_END]() {
+    if (
+      !this[EMITTING_END] &&
+      !this[EMITTED_END] &&
+      !this[DESTROYED] &&
+      this[BUFFER].length === 0 &&
+      this[EOF]
+    ) {
+      this[EMITTING_END] = true
+      this.emit('end')
+      this.emit('prefinish')
+      this.emit('finish')
+      if (this[CLOSED]) this.emit('close')
+      this[EMITTING_END] = false
+    }
+  }
+
+  emit(ev, data, ...extra) {
+    // error and close are only events allowed after calling destroy()
+    if (ev !== 'error' && ev !== 'close' && ev !== DESTROYED && this[DESTROYED])
+      return
+    else if (ev === 'data') {
+      return !this[OBJECTMODE] && !data
+        ? false
+        : this[ASYNC]
+        ? defer(() => this[EMITDATA](data))
+        : this[EMITDATA](data)
+    } else if (ev === 'end') {
+      return this[EMITEND]()
+    } else if (ev === 'close') {
+      this[CLOSED] = true
+      // don't emit close before 'end' and 'finish'
+      if (!this[EMITTED_END] && !this[DESTROYED]) return
+      const ret = super.emit('close')
+      this.removeAllListeners('close')
+      return ret
+    } else if (ev === 'error') {
+      this[EMITTED_ERROR] = data
+      super.emit(ERROR, data)
+      const ret =
+        !this[SIGNAL] || this.listeners('error').length
+          ? super.emit('error', data)
+          : false
+      this[MAYBE_EMIT_END]()
+      return ret
+    } else if (ev === 'resume') {
+      const ret = super.emit('resume')
+      this[MAYBE_EMIT_END]()
+      return ret
+    } else if (ev === 'finish' || ev === 'prefinish') {
+      const ret = super.emit(ev)
+      this.removeAllListeners(ev)
+      return ret
+    }
+
+    // Some other unknown event
+    const ret = super.emit(ev, data, ...extra)
+    this[MAYBE_EMIT_END]()
+    return ret
+  }
+
+  [EMITDATA](data) {
+    for (const p of this[PIPES]) {
+      if (p.dest.write(data) === false) this.pause()
+    }
+    const ret = super.emit('data', data)
+    this[MAYBE_EMIT_END]()
+    return ret
+  }
+
+  [EMITEND]() {
+    if (this[EMITTED_END]) return
+
+    this[EMITTED_END] = true
+    this.readable = false
+    if (this[ASYNC]) defer(() => this[EMITEND2]())
+    else this[EMITEND2]()
+  }
+
+  [EMITEND2]() {
+    if (this[DECODER]) {
+      const data = this[DECODER].end()
+      if (data) {
+        for (const p of this[PIPES]) {
+          p.dest.write(data)
+        }
+        super.emit('data', data)
+      }
+    }
+
+    for (const p of this[PIPES]) {
+      p.end()
+    }
+    const ret = super.emit('end')
+    this.removeAllListeners('end')
+    return ret
+  }
+
+  // const all = await stream.collect()
+  collect() {
+    const buf = []
+    if (!this[OBJECTMODE]) buf.dataLength = 0
+    // set the promise first, in case an error is raised
+    // by triggering the flow here.
+    const p = this.promise()
+    this.on('data', c => {
+      buf.push(c)
+      if (!this[OBJECTMODE]) buf.dataLength += c.length
+    })
+    return p.then(() => buf)
+  }
+
+  // const data = await stream.concat()
+  concat() {
+    return this[OBJECTMODE]
+      ? Promise.reject(new Error('cannot concat in objectMode'))
+      : this.collect().then(buf =>
+          this[OBJECTMODE]
+            ? Promise.reject(new Error('cannot concat in objectMode'))
+            : this[ENCODING]
+            ? buf.join('')
+            : Buffer.concat(buf, buf.dataLength)
+        )
+  }
+
+  // stream.promise().then(() => done, er => emitted error)
+  promise() {
+    return new Promise((resolve, reject) => {
+      this.on(DESTROYED, () => reject(new Error('stream destroyed')))
+      this.on('error', er => reject(er))
+      this.on('end', () => resolve())
+    })
+  }
+
+  // for await (let chunk of stream)
+  [ASYNCITERATOR]() {
+    let stopped = false
+    const stop = () => {
+      this.pause()
+      stopped = true
+      return Promise.resolve({ done: true })
+    }
+    const next = () => {
+      if (stopped) return stop()
+      const res = this.read()
+      if (res !== null) return Promise.resolve({ done: false, value: res })
+
+      if (this[EOF]) return stop()
+
+      let resolve = null
+      let reject = null
+      const onerr = er => {
+        this.removeListener('data', ondata)
+        this.removeListener('end', onend)
+        this.removeListener(DESTROYED, ondestroy)
+        stop()
+        reject(er)
+      }
+      const ondata = value => {
+        this.removeListener('error', onerr)
+        this.removeListener('end', onend)
+        this.removeListener(DESTROYED, ondestroy)
+        this.pause()
+        resolve({ value: value, done: !!this[EOF] })
+      }
+      const onend = () => {
+        this.removeListener('error', onerr)
+        this.removeListener('data', ondata)
+        this.removeListener(DESTROYED, ondestroy)
+        stop()
+        resolve({ done: true })
+      }
+      const ondestroy = () => onerr(new Error('stream destroyed'))
+      return new Promise((res, rej) => {
+        reject = rej
+        resolve = res
+        this.once(DESTROYED, ondestroy)
+        this.once('error', onerr)
+        this.once('end', onend)
+        this.once('data', ondata)
+      })
+    }
+
+    return {
+      next,
+      throw: stop,
+      return: stop,
+      [ASYNCITERATOR]() {
+        return this
+      },
+    }
+  }
+
+  // for (let chunk of stream)
+  [ITERATOR]() {
+    let stopped = false
+    const stop = () => {
+      this.pause()
+      this.removeListener(ERROR, stop)
+      this.removeListener(DESTROYED, stop)
+      this.removeListener('end', stop)
+      stopped = true
+      return { done: true }
+    }
+
+    const next = () => {
+      if (stopped) return stop()
+      const value = this.read()
+      return value === null ? stop() : { value }
+    }
+    this.once('end', stop)
+    this.once(ERROR, stop)
+    this.once(DESTROYED, stop)
+
+    return {
+      next,
+      throw: stop,
+      return: stop,
+      [ITERATOR]() {
+        return this
+      },
+    }
+  }
+
+  destroy(er) {
+    if (this[DESTROYED]) {
+      if (er) this.emit('error', er)
+      else this.emit(DESTROYED)
+      return this
+    }
+
+    this[DESTROYED] = true
+
+    // throw away all buffered data, it's never coming out
+    this[BUFFER].length = 0
+    this[BUFFERLENGTH] = 0
+
+    if (typeof this.close === 'function' && !this[CLOSED]) this.close()
+
+    if (er) this.emit('error', er)
+    // if no error to emit, still reject pending promises
+    else this.emit(DESTROYED)
+
+    return this
+  }
+
+  static isStream(s) {
+    return (
+      !!s &&
+      (s instanceof Minipass ||
+        s instanceof Stream ||
+        (s instanceof EE &&
+          // readable
+          (typeof s.pipe === 'function' ||
+            // writable
+            (typeof s.write === 'function' && typeof s.end === 'function'))))
+    )
+  }
+}
+
+exports.Minipass = Minipass
diff --git a/node_modules/tar/node_modules/minipass/index.mjs b/node_modules/tar/node_modules/minipass/index.mjs
new file mode 100644
index 0000000..6ef6cd8
--- /dev/null
+++ b/node_modules/tar/node_modules/minipass/index.mjs
@@ -0,0 +1,702 @@
+'use strict'
+const proc =
+  typeof process === 'object' && process
+    ? process
+    : {
+        stdout: null,
+        stderr: null,
+      }
+import EE from 'events'
+import Stream from 'stream'
+import stringdecoder from 'string_decoder'
+const SD = stringdecoder.StringDecoder
+
+const EOF = Symbol('EOF')
+const MAYBE_EMIT_END = Symbol('maybeEmitEnd')
+const EMITTED_END = Symbol('emittedEnd')
+const EMITTING_END = Symbol('emittingEnd')
+const EMITTED_ERROR = Symbol('emittedError')
+const CLOSED = Symbol('closed')
+const READ = Symbol('read')
+const FLUSH = Symbol('flush')
+const FLUSHCHUNK = Symbol('flushChunk')
+const ENCODING = Symbol('encoding')
+const DECODER = Symbol('decoder')
+const FLOWING = Symbol('flowing')
+const PAUSED = Symbol('paused')
+const RESUME = Symbol('resume')
+const BUFFER = Symbol('buffer')
+const PIPES = Symbol('pipes')
+const BUFFERLENGTH = Symbol('bufferLength')
+const BUFFERPUSH = Symbol('bufferPush')
+const BUFFERSHIFT = Symbol('bufferShift')
+const OBJECTMODE = Symbol('objectMode')
+// internal event when stream is destroyed
+const DESTROYED = Symbol('destroyed')
+// internal event when stream has an error
+const ERROR = Symbol('error')
+const EMITDATA = Symbol('emitData')
+const EMITEND = Symbol('emitEnd')
+const EMITEND2 = Symbol('emitEnd2')
+const ASYNC = Symbol('async')
+const ABORT = Symbol('abort')
+const ABORTED = Symbol('aborted')
+const SIGNAL = Symbol('signal')
+
+const defer = fn => Promise.resolve().then(fn)
+
+// TODO remove when Node v8 support drops
+const doIter = global._MP_NO_ITERATOR_SYMBOLS_ !== '1'
+const ASYNCITERATOR =
+  (doIter && Symbol.asyncIterator) || Symbol('asyncIterator not implemented')
+const ITERATOR =
+  (doIter && Symbol.iterator) || Symbol('iterator not implemented')
+
+// events that mean 'the stream is over'
+// these are treated specially, and re-emitted
+// if they are listened for after emitting.
+const isEndish = ev => ev === 'end' || ev === 'finish' || ev === 'prefinish'
+
+const isArrayBuffer = b =>
+  b instanceof ArrayBuffer ||
+  (typeof b === 'object' &&
+    b.constructor &&
+    b.constructor.name === 'ArrayBuffer' &&
+    b.byteLength >= 0)
+
+const isArrayBufferView = b => !Buffer.isBuffer(b) && ArrayBuffer.isView(b)
+
+class Pipe {
+  constructor(src, dest, opts) {
+    this.src = src
+    this.dest = dest
+    this.opts = opts
+    this.ondrain = () => src[RESUME]()
+    dest.on('drain', this.ondrain)
+  }
+  unpipe() {
+    this.dest.removeListener('drain', this.ondrain)
+  }
+  // istanbul ignore next - only here for the prototype
+  proxyErrors() {}
+  end() {
+    this.unpipe()
+    if (this.opts.end) this.dest.end()
+  }
+}
+
+class PipeProxyErrors extends Pipe {
+  unpipe() {
+    this.src.removeListener('error', this.proxyErrors)
+    super.unpipe()
+  }
+  constructor(src, dest, opts) {
+    super(src, dest, opts)
+    this.proxyErrors = er => dest.emit('error', er)
+    src.on('error', this.proxyErrors)
+  }
+}
+
+export class Minipass extends Stream {
+  constructor(options) {
+    super()
+    this[FLOWING] = false
+    // whether we're explicitly paused
+    this[PAUSED] = false
+    this[PIPES] = []
+    this[BUFFER] = []
+    this[OBJECTMODE] = (options && options.objectMode) || false
+    if (this[OBJECTMODE]) this[ENCODING] = null
+    else this[ENCODING] = (options && options.encoding) || null
+    if (this[ENCODING] === 'buffer') this[ENCODING] = null
+    this[ASYNC] = (options && !!options.async) || false
+    this[DECODER] = this[ENCODING] ? new SD(this[ENCODING]) : null
+    this[EOF] = false
+    this[EMITTED_END] = false
+    this[EMITTING_END] = false
+    this[CLOSED] = false
+    this[EMITTED_ERROR] = null
+    this.writable = true
+    this.readable = true
+    this[BUFFERLENGTH] = 0
+    this[DESTROYED] = false
+    if (options && options.debugExposeBuffer === true) {
+      Object.defineProperty(this, 'buffer', { get: () => this[BUFFER] })
+    }
+    if (options && options.debugExposePipes === true) {
+      Object.defineProperty(this, 'pipes', { get: () => this[PIPES] })
+    }
+    this[SIGNAL] = options && options.signal
+    this[ABORTED] = false
+    if (this[SIGNAL]) {
+      this[SIGNAL].addEventListener('abort', () => this[ABORT]())
+      if (this[SIGNAL].aborted) {
+        this[ABORT]()
+      }
+    }
+  }
+
+  get bufferLength() {
+    return this[BUFFERLENGTH]
+  }
+
+  get encoding() {
+    return this[ENCODING]
+  }
+  set encoding(enc) {
+    if (this[OBJECTMODE]) throw new Error('cannot set encoding in objectMode')
+
+    if (
+      this[ENCODING] &&
+      enc !== this[ENCODING] &&
+      ((this[DECODER] && this[DECODER].lastNeed) || this[BUFFERLENGTH])
+    )
+      throw new Error('cannot change encoding')
+
+    if (this[ENCODING] !== enc) {
+      this[DECODER] = enc ? new SD(enc) : null
+      if (this[BUFFER].length)
+        this[BUFFER] = this[BUFFER].map(chunk => this[DECODER].write(chunk))
+    }
+
+    this[ENCODING] = enc
+  }
+
+  setEncoding(enc) {
+    this.encoding = enc
+  }
+
+  get objectMode() {
+    return this[OBJECTMODE]
+  }
+  set objectMode(om) {
+    this[OBJECTMODE] = this[OBJECTMODE] || !!om
+  }
+
+  get ['async']() {
+    return this[ASYNC]
+  }
+  set ['async'](a) {
+    this[ASYNC] = this[ASYNC] || !!a
+  }
+
+  // drop everything and get out of the flow completely
+  [ABORT]() {
+    this[ABORTED] = true
+    this.emit('abort', this[SIGNAL].reason)
+    this.destroy(this[SIGNAL].reason)
+  }
+
+  get aborted() {
+    return this[ABORTED]
+  }
+  set aborted(_) {}
+
+  write(chunk, encoding, cb) {
+    if (this[ABORTED]) return false
+    if (this[EOF]) throw new Error('write after end')
+
+    if (this[DESTROYED]) {
+      this.emit(
+        'error',
+        Object.assign(
+          new Error('Cannot call write after a stream was destroyed'),
+          { code: 'ERR_STREAM_DESTROYED' }
+        )
+      )
+      return true
+    }
+
+    if (typeof encoding === 'function') (cb = encoding), (encoding = 'utf8')
+
+    if (!encoding) encoding = 'utf8'
+
+    const fn = this[ASYNC] ? defer : f => f()
+
+    // convert array buffers and typed array views into buffers
+    // at some point in the future, we may want to do the opposite!
+    // leave strings and buffers as-is
+    // anything else switches us into object mode
+    if (!this[OBJECTMODE] && !Buffer.isBuffer(chunk)) {
+      if (isArrayBufferView(chunk))
+        chunk = Buffer.from(chunk.buffer, chunk.byteOffset, chunk.byteLength)
+      else if (isArrayBuffer(chunk)) chunk = Buffer.from(chunk)
+      else if (typeof chunk !== 'string')
+        // use the setter so we throw if we have encoding set
+        this.objectMode = true
+    }
+
+    // handle object mode up front, since it's simpler
+    // this yields better performance, fewer checks later.
+    if (this[OBJECTMODE]) {
+      /* istanbul ignore if - maybe impossible? */
+      if (this.flowing && this[BUFFERLENGTH] !== 0) this[FLUSH](true)
+
+      if (this.flowing) this.emit('data', chunk)
+      else this[BUFFERPUSH](chunk)
+
+      if (this[BUFFERLENGTH] !== 0) this.emit('readable')
+
+      if (cb) fn(cb)
+
+      return this.flowing
+    }
+
+    // at this point the chunk is a buffer or string
+    // don't buffer it up or send it to the decoder
+    if (!chunk.length) {
+      if (this[BUFFERLENGTH] !== 0) this.emit('readable')
+      if (cb) fn(cb)
+      return this.flowing
+    }
+
+    // fast-path writing strings of same encoding to a stream with
+    // an empty buffer, skipping the buffer/decoder dance
+    if (
+      typeof chunk === 'string' &&
+      // unless it is a string already ready for us to use
+      !(encoding === this[ENCODING] && !this[DECODER].lastNeed)
+    ) {
+      chunk = Buffer.from(chunk, encoding)
+    }
+
+    if (Buffer.isBuffer(chunk) && this[ENCODING])
+      chunk = this[DECODER].write(chunk)
+
+    // Note: flushing CAN potentially switch us into not-flowing mode
+    if (this.flowing && this[BUFFERLENGTH] !== 0) this[FLUSH](true)
+
+    if (this.flowing) this.emit('data', chunk)
+    else this[BUFFERPUSH](chunk)
+
+    if (this[BUFFERLENGTH] !== 0) this.emit('readable')
+
+    if (cb) fn(cb)
+
+    return this.flowing
+  }
+
+  read(n) {
+    if (this[DESTROYED]) return null
+
+    if (this[BUFFERLENGTH] === 0 || n === 0 || n > this[BUFFERLENGTH]) {
+      this[MAYBE_EMIT_END]()
+      return null
+    }
+
+    if (this[OBJECTMODE]) n = null
+
+    if (this[BUFFER].length > 1 && !this[OBJECTMODE]) {
+      if (this.encoding) this[BUFFER] = [this[BUFFER].join('')]
+      else this[BUFFER] = [Buffer.concat(this[BUFFER], this[BUFFERLENGTH])]
+    }
+
+    const ret = this[READ](n || null, this[BUFFER][0])
+    this[MAYBE_EMIT_END]()
+    return ret
+  }
+
+  [READ](n, chunk) {
+    if (n === chunk.length || n === null) this[BUFFERSHIFT]()
+    else {
+      this[BUFFER][0] = chunk.slice(n)
+      chunk = chunk.slice(0, n)
+      this[BUFFERLENGTH] -= n
+    }
+
+    this.emit('data', chunk)
+
+    if (!this[BUFFER].length && !this[EOF]) this.emit('drain')
+
+    return chunk
+  }
+
+  end(chunk, encoding, cb) {
+    if (typeof chunk === 'function') (cb = chunk), (chunk = null)
+    if (typeof encoding === 'function') (cb = encoding), (encoding = 'utf8')
+    if (chunk) this.write(chunk, encoding)
+    if (cb) this.once('end', cb)
+    this[EOF] = true
+    this.writable = false
+
+    // if we haven't written anything, then go ahead and emit,
+    // even if we're not reading.
+    // we'll re-emit if a new 'end' listener is added anyway.
+    // This makes MP more suitable to write-only use cases.
+    if (this.flowing || !this[PAUSED]) this[MAYBE_EMIT_END]()
+    return this
+  }
+
+  // don't let the internal resume be overwritten
+  [RESUME]() {
+    if (this[DESTROYED]) return
+
+    this[PAUSED] = false
+    this[FLOWING] = true
+    this.emit('resume')
+    if (this[BUFFER].length) this[FLUSH]()
+    else if (this[EOF]) this[MAYBE_EMIT_END]()
+    else this.emit('drain')
+  }
+
+  resume() {
+    return this[RESUME]()
+  }
+
+  pause() {
+    this[FLOWING] = false
+    this[PAUSED] = true
+  }
+
+  get destroyed() {
+    return this[DESTROYED]
+  }
+
+  get flowing() {
+    return this[FLOWING]
+  }
+
+  get paused() {
+    return this[PAUSED]
+  }
+
+  [BUFFERPUSH](chunk) {
+    if (this[OBJECTMODE]) this[BUFFERLENGTH] += 1
+    else this[BUFFERLENGTH] += chunk.length
+    this[BUFFER].push(chunk)
+  }
+
+  [BUFFERSHIFT]() {
+    if (this[OBJECTMODE]) this[BUFFERLENGTH] -= 1
+    else this[BUFFERLENGTH] -= this[BUFFER][0].length
+    return this[BUFFER].shift()
+  }
+
+  [FLUSH](noDrain) {
+    do {} while (this[FLUSHCHUNK](this[BUFFERSHIFT]()) && this[BUFFER].length)
+
+    if (!noDrain && !this[BUFFER].length && !this[EOF]) this.emit('drain')
+  }
+
+  [FLUSHCHUNK](chunk) {
+    this.emit('data', chunk)
+    return this.flowing
+  }
+
+  pipe(dest, opts) {
+    if (this[DESTROYED]) return
+
+    const ended = this[EMITTED_END]
+    opts = opts || {}
+    if (dest === proc.stdout || dest === proc.stderr) opts.end = false
+    else opts.end = opts.end !== false
+    opts.proxyErrors = !!opts.proxyErrors
+
+    // piping an ended stream ends immediately
+    if (ended) {
+      if (opts.end) dest.end()
+    } else {
+      this[PIPES].push(
+        !opts.proxyErrors
+          ? new Pipe(this, dest, opts)
+          : new PipeProxyErrors(this, dest, opts)
+      )
+      if (this[ASYNC]) defer(() => this[RESUME]())
+      else this[RESUME]()
+    }
+
+    return dest
+  }
+
+  unpipe(dest) {
+    const p = this[PIPES].find(p => p.dest === dest)
+    if (p) {
+      this[PIPES].splice(this[PIPES].indexOf(p), 1)
+      p.unpipe()
+    }
+  }
+
+  addListener(ev, fn) {
+    return this.on(ev, fn)
+  }
+
+  on(ev, fn) {
+    const ret = super.on(ev, fn)
+    if (ev === 'data' && !this[PIPES].length && !this.flowing) this[RESUME]()
+    else if (ev === 'readable' && this[BUFFERLENGTH] !== 0)
+      super.emit('readable')
+    else if (isEndish(ev) && this[EMITTED_END]) {
+      super.emit(ev)
+      this.removeAllListeners(ev)
+    } else if (ev === 'error' && this[EMITTED_ERROR]) {
+      if (this[ASYNC]) defer(() => fn.call(this, this[EMITTED_ERROR]))
+      else fn.call(this, this[EMITTED_ERROR])
+    }
+    return ret
+  }
+
+  get emittedEnd() {
+    return this[EMITTED_END]
+  }
+
+  [MAYBE_EMIT_END]() {
+    if (
+      !this[EMITTING_END] &&
+      !this[EMITTED_END] &&
+      !this[DESTROYED] &&
+      this[BUFFER].length === 0 &&
+      this[EOF]
+    ) {
+      this[EMITTING_END] = true
+      this.emit('end')
+      this.emit('prefinish')
+      this.emit('finish')
+      if (this[CLOSED]) this.emit('close')
+      this[EMITTING_END] = false
+    }
+  }
+
+  emit(ev, data, ...extra) {
+    // error and close are only events allowed after calling destroy()
+    if (ev !== 'error' && ev !== 'close' && ev !== DESTROYED && this[DESTROYED])
+      return
+    else if (ev === 'data') {
+      return !this[OBJECTMODE] && !data
+        ? false
+        : this[ASYNC]
+        ? defer(() => this[EMITDATA](data))
+        : this[EMITDATA](data)
+    } else if (ev === 'end') {
+      return this[EMITEND]()
+    } else if (ev === 'close') {
+      this[CLOSED] = true
+      // don't emit close before 'end' and 'finish'
+      if (!this[EMITTED_END] && !this[DESTROYED]) return
+      const ret = super.emit('close')
+      this.removeAllListeners('close')
+      return ret
+    } else if (ev === 'error') {
+      this[EMITTED_ERROR] = data
+      super.emit(ERROR, data)
+      const ret =
+        !this[SIGNAL] || this.listeners('error').length
+          ? super.emit('error', data)
+          : false
+      this[MAYBE_EMIT_END]()
+      return ret
+    } else if (ev === 'resume') {
+      const ret = super.emit('resume')
+      this[MAYBE_EMIT_END]()
+      return ret
+    } else if (ev === 'finish' || ev === 'prefinish') {
+      const ret = super.emit(ev)
+      this.removeAllListeners(ev)
+      return ret
+    }
+
+    // Some other unknown event
+    const ret = super.emit(ev, data, ...extra)
+    this[MAYBE_EMIT_END]()
+    return ret
+  }
+
+  [EMITDATA](data) {
+    for (const p of this[PIPES]) {
+      if (p.dest.write(data) === false) this.pause()
+    }
+    const ret = super.emit('data', data)
+    this[MAYBE_EMIT_END]()
+    return ret
+  }
+
+  [EMITEND]() {
+    if (this[EMITTED_END]) return
+
+    this[EMITTED_END] = true
+    this.readable = false
+    if (this[ASYNC]) defer(() => this[EMITEND2]())
+    else this[EMITEND2]()
+  }
+
+  [EMITEND2]() {
+    if (this[DECODER]) {
+      const data = this[DECODER].end()
+      if (data) {
+        for (const p of this[PIPES]) {
+          p.dest.write(data)
+        }
+        super.emit('data', data)
+      }
+    }
+
+    for (const p of this[PIPES]) {
+      p.end()
+    }
+    const ret = super.emit('end')
+    this.removeAllListeners('end')
+    return ret
+  }
+
+  // const all = await stream.collect()
+  collect() {
+    const buf = []
+    if (!this[OBJECTMODE]) buf.dataLength = 0
+    // set the promise first, in case an error is raised
+    // by triggering the flow here.
+    const p = this.promise()
+    this.on('data', c => {
+      buf.push(c)
+      if (!this[OBJECTMODE]) buf.dataLength += c.length
+    })
+    return p.then(() => buf)
+  }
+
+  // const data = await stream.concat()
+  concat() {
+    return this[OBJECTMODE]
+      ? Promise.reject(new Error('cannot concat in objectMode'))
+      : this.collect().then(buf =>
+          this[OBJECTMODE]
+            ? Promise.reject(new Error('cannot concat in objectMode'))
+            : this[ENCODING]
+            ? buf.join('')
+            : Buffer.concat(buf, buf.dataLength)
+        )
+  }
+
+  // stream.promise().then(() => done, er => emitted error)
+  promise() {
+    return new Promise((resolve, reject) => {
+      this.on(DESTROYED, () => reject(new Error('stream destroyed')))
+      this.on('error', er => reject(er))
+      this.on('end', () => resolve())
+    })
+  }
+
+  // for await (let chunk of stream)
+  [ASYNCITERATOR]() {
+    let stopped = false
+    const stop = () => {
+      this.pause()
+      stopped = true
+      return Promise.resolve({ done: true })
+    }
+    const next = () => {
+      if (stopped) return stop()
+      const res = this.read()
+      if (res !== null) return Promise.resolve({ done: false, value: res })
+
+      if (this[EOF]) return stop()
+
+      let resolve = null
+      let reject = null
+      const onerr = er => {
+        this.removeListener('data', ondata)
+        this.removeListener('end', onend)
+        this.removeListener(DESTROYED, ondestroy)
+        stop()
+        reject(er)
+      }
+      const ondata = value => {
+        this.removeListener('error', onerr)
+        this.removeListener('end', onend)
+        this.removeListener(DESTROYED, ondestroy)
+        this.pause()
+        resolve({ value: value, done: !!this[EOF] })
+      }
+      const onend = () => {
+        this.removeListener('error', onerr)
+        this.removeListener('data', ondata)
+        this.removeListener(DESTROYED, ondestroy)
+        stop()
+        resolve({ done: true })
+      }
+      const ondestroy = () => onerr(new Error('stream destroyed'))
+      return new Promise((res, rej) => {
+        reject = rej
+        resolve = res
+        this.once(DESTROYED, ondestroy)
+        this.once('error', onerr)
+        this.once('end', onend)
+        this.once('data', ondata)
+      })
+    }
+
+    return {
+      next,
+      throw: stop,
+      return: stop,
+      [ASYNCITERATOR]() {
+        return this
+      },
+    }
+  }
+
+  // for (let chunk of stream)
+  [ITERATOR]() {
+    let stopped = false
+    const stop = () => {
+      this.pause()
+      this.removeListener(ERROR, stop)
+      this.removeListener(DESTROYED, stop)
+      this.removeListener('end', stop)
+      stopped = true
+      return { done: true }
+    }
+
+    const next = () => {
+      if (stopped) return stop()
+      const value = this.read()
+      return value === null ? stop() : { value }
+    }
+    this.once('end', stop)
+    this.once(ERROR, stop)
+    this.once(DESTROYED, stop)
+
+    return {
+      next,
+      throw: stop,
+      return: stop,
+      [ITERATOR]() {
+        return this
+      },
+    }
+  }
+
+  destroy(er) {
+    if (this[DESTROYED]) {
+      if (er) this.emit('error', er)
+      else this.emit(DESTROYED)
+      return this
+    }
+
+    this[DESTROYED] = true
+
+    // throw away all buffered data, it's never coming out
+    this[BUFFER].length = 0
+    this[BUFFERLENGTH] = 0
+
+    if (typeof this.close === 'function' && !this[CLOSED]) this.close()
+
+    if (er) this.emit('error', er)
+    // if no error to emit, still reject pending promises
+    else this.emit(DESTROYED)
+
+    return this
+  }
+
+  static isStream(s) {
+    return (
+      !!s &&
+      (s instanceof Minipass ||
+        s instanceof Stream ||
+        (s instanceof EE &&
+          // readable
+          (typeof s.pipe === 'function' ||
+            // writable
+            (typeof s.write === 'function' && typeof s.end === 'function'))))
+    )
+  }
+}
+
+
diff --git a/node_modules/tar/node_modules/minipass/package.json b/node_modules/tar/node_modules/minipass/package.json
new file mode 100644
index 0000000..0e20e98
--- /dev/null
+++ b/node_modules/tar/node_modules/minipass/package.json
@@ -0,0 +1,76 @@
+{
+  "name": "minipass",
+  "version": "5.0.0",
+  "description": "minimal implementation of a PassThrough stream",
+  "main": "./index.js",
+  "module": "./index.mjs",
+  "types": "./index.d.ts",
+  "exports": {
+    ".": {
+      "import": {
+        "types": "./index.d.ts",
+        "default": "./index.mjs"
+      },
+      "require": {
+        "types": "./index.d.ts",
+        "default": "./index.js"
+      }
+    },
+    "./package.json": "./package.json"
+  },
+  "devDependencies": {
+    "@types/node": "^17.0.41",
+    "end-of-stream": "^1.4.0",
+    "node-abort-controller": "^3.1.1",
+    "prettier": "^2.6.2",
+    "tap": "^16.2.0",
+    "through2": "^2.0.3",
+    "ts-node": "^10.8.1",
+    "typedoc": "^0.23.24",
+    "typescript": "^4.7.3"
+  },
+  "scripts": {
+    "pretest": "npm run prepare",
+    "presnap": "npm run prepare",
+    "prepare": "node ./scripts/transpile-to-esm.js",
+    "snap": "tap",
+    "test": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags",
+    "typedoc": "typedoc ./index.d.ts",
+    "format": "prettier --write . --loglevel warn"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/isaacs/minipass.git"
+  },
+  "keywords": [
+    "passthrough",
+    "stream"
+  ],
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "ISC",
+  "files": [
+    "index.d.ts",
+    "index.js",
+    "index.mjs"
+  ],
+  "tap": {
+    "check-coverage": true
+  },
+  "engines": {
+    "node": ">=8"
+  },
+  "prettier": {
+    "semi": false,
+    "printWidth": 80,
+    "tabWidth": 2,
+    "useTabs": false,
+    "singleQuote": true,
+    "jsxSingleQuote": false,
+    "bracketSameLine": true,
+    "arrowParens": "avoid",
+    "endOfLine": "lf"
+  }
+}
diff --git a/node_modules/tar/package.json b/node_modules/tar/package.json
new file mode 100644
index 0000000..46d91ee
--- /dev/null
+++ b/node_modules/tar/package.json
@@ -0,0 +1,70 @@
+{
+  "author": "GitHub Inc.",
+  "name": "tar",
+  "description": "tar for node",
+  "version": "6.2.0",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/isaacs/node-tar.git"
+  },
+  "scripts": {
+    "genparse": "node scripts/generate-parse-fixtures.js",
+    "snap": "tap",
+    "test": "tap"
+  },
+  "dependencies": {
+    "chownr": "^2.0.0",
+    "fs-minipass": "^2.0.0",
+    "minipass": "^5.0.0",
+    "minizlib": "^2.1.1",
+    "mkdirp": "^1.0.3",
+    "yallist": "^4.0.0"
+  },
+  "devDependencies": {
+    "@npmcli/eslint-config": "^4.0.0",
+    "@npmcli/template-oss": "4.11.0",
+    "chmodr": "^1.2.0",
+    "end-of-stream": "^1.4.3",
+    "events-to-array": "^2.0.3",
+    "mutate-fs": "^2.1.1",
+    "nock": "^13.2.9",
+    "rimraf": "^3.0.2",
+    "tap": "^16.0.1"
+  },
+  "license": "ISC",
+  "engines": {
+    "node": ">=10"
+  },
+  "files": [
+    "bin/",
+    "lib/",
+    "index.js"
+  ],
+  "tap": {
+    "coverage-map": "map.js",
+    "timeout": 0,
+    "nyc-arg": [
+      "--exclude",
+      "tap-snapshots/**"
+    ]
+  },
+  "templateOSS": {
+    "//@npmcli/template-oss": "This file is partially managed by @npmcli/template-oss. Edits may be overwritten.",
+    "version": "4.11.0",
+    "content": "scripts/template-oss",
+    "engines": ">=10",
+    "distPaths": [
+      "index.js"
+    ],
+    "allowPaths": [
+      "/index.js"
+    ],
+    "ciVersions": [
+      "10.x",
+      "12.x",
+      "14.x",
+      "16.x",
+      "18.x"
+    ]
+  }
+}
diff --git a/node_modules/tr46/.npmignore b/node_modules/tr46/.npmignore
new file mode 100644
index 0000000..96e9161
--- /dev/null
+++ b/node_modules/tr46/.npmignore
@@ -0,0 +1,4 @@
+scripts/
+test/
+
+!lib/mapping_table.json
diff --git a/node_modules/tr46/index.js b/node_modules/tr46/index.js
new file mode 100644
index 0000000..9ce12ca
--- /dev/null
+++ b/node_modules/tr46/index.js
@@ -0,0 +1,193 @@
+"use strict";
+
+var punycode = require("punycode");
+var mappingTable = require("./lib/mappingTable.json");
+
+var PROCESSING_OPTIONS = {
+  TRANSITIONAL: 0,
+  NONTRANSITIONAL: 1
+};
+
+function normalize(str) { // fix bug in v8
+  return str.split('\u0000').map(function (s) { return s.normalize('NFC'); }).join('\u0000');
+}
+
+function findStatus(val) {
+  var start = 0;
+  var end = mappingTable.length - 1;
+
+  while (start <= end) {
+    var mid = Math.floor((start + end) / 2);
+
+    var target = mappingTable[mid];
+    if (target[0][0] <= val && target[0][1] >= val) {
+      return target;
+    } else if (target[0][0] > val) {
+      end = mid - 1;
+    } else {
+      start = mid + 1;
+    }
+  }
+
+  return null;
+}
+
+var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
+
+function countSymbols(string) {
+  return string
+    // replace every surrogate pair with a BMP symbol
+    .replace(regexAstralSymbols, '_')
+    // then get the length
+    .length;
+}
+
+function mapChars(domain_name, useSTD3, processing_option) {
+  var hasError = false;
+  var processed = "";
+
+  var len = countSymbols(domain_name);
+  for (var i = 0; i < len; ++i) {
+    var codePoint = domain_name.codePointAt(i);
+    var status = findStatus(codePoint);
+
+    switch (status[1]) {
+      case "disallowed":
+        hasError = true;
+        processed += String.fromCodePoint(codePoint);
+        break;
+      case "ignored":
+        break;
+      case "mapped":
+        processed += String.fromCodePoint.apply(String, status[2]);
+        break;
+      case "deviation":
+        if (processing_option === PROCESSING_OPTIONS.TRANSITIONAL) {
+          processed += String.fromCodePoint.apply(String, status[2]);
+        } else {
+          processed += String.fromCodePoint(codePoint);
+        }
+        break;
+      case "valid":
+        processed += String.fromCodePoint(codePoint);
+        break;
+      case "disallowed_STD3_mapped":
+        if (useSTD3) {
+          hasError = true;
+          processed += String.fromCodePoint(codePoint);
+        } else {
+          processed += String.fromCodePoint.apply(String, status[2]);
+        }
+        break;
+      case "disallowed_STD3_valid":
+        if (useSTD3) {
+          hasError = true;
+        }
+
+        processed += String.fromCodePoint(codePoint);
+        break;
+    }
+  }
+
+  return {
+    string: processed,
+    error: hasError
+  };
+}
+
+var combiningMarksRegex = /[\u0300-\u036F\u0483-\u0489\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u08E4-\u0903\u093A-\u093C\u093E-\u094F\u0951-\u0957\u0962\u0963\u0981-\u0983\u09BC\u09BE-\u09C4\u09C7\u09C8\u09CB-\u09CD\u09D7\u09E2\u09E3\u0A01-\u0A03\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81-\u0A83\u0ABC\u0ABE-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AE2\u0AE3\u0B01-\u0B03\u0B3C\u0B3E-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B62\u0B63\u0B82\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD7\u0C00-\u0C03\u0C3E-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C81-\u0C83\u0CBC\u0CBE-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CE2\u0CE3\u0D01-\u0D03\u0D3E-\u0D44\u0D46-\u0D48\u0D4A-\u0D4D\u0D57\u0D62\u0D63\u0D82\u0D83\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DF2\u0DF3\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EB9\u0EBB\u0EBC\u0EC8-\u0ECD\u0F18\u0F19\u0F35\u0F37\u0F39\u0F3E\u0F3F\u0F71-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102B-\u103E\u1056-\u1059\u105E-\u1060\u1062-\u1064\u1067-\u106D\u1071-\u1074\u1082-\u108D\u108F\u109A-\u109D\u135D-\u135F\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17B4-\u17D3\u17DD\u180B-\u180D\u18A9\u1920-\u192B\u1930-\u193B\u19B0-\u19C0\u19C8\u19C9\u1A17-\u1A1B\u1A55-\u1A5E\u1A60-\u1A7C\u1A7F\u1AB0-\u1ABE\u1B00-\u1B04\u1B34-\u1B44\u1B6B-\u1B73\u1B80-\u1B82\u1BA1-\u1BAD\u1BE6-\u1BF3\u1C24-\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE8\u1CED\u1CF2-\u1CF4\u1CF8\u1CF9\u1DC0-\u1DF5\u1DFC-\u1DFF\u20D0-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302F\u3099\u309A\uA66F-\uA672\uA674-\uA67D\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA823-\uA827\uA880\uA881\uA8B4-\uA8C4\uA8E0-\uA8F1\uA926-\uA92D\uA947-\uA953\uA980-\uA983\uA9B3-\uA9C0\uA9E5\uAA29-\uAA36\uAA43\uAA4C\uAA4D\uAA7B-\uAA7D\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEB-\uAAEF\uAAF5\uAAF6\uABE3-\uABEA\uABEC\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2D]|\uD800[\uDDFD\uDEE0\uDF76-\uDF7A]|\uD802[\uDE01-\uDE03\uDE05\uDE06\uDE0C-\uDE0F\uDE38-\uDE3A\uDE3F\uDEE5\uDEE6]|\uD804[\uDC00-\uDC02\uDC38-\uDC46\uDC7F-\uDC82\uDCB0-\uDCBA\uDD00-\uDD02\uDD27-\uDD34\uDD73\uDD80-\uDD82\uDDB3-\uDDC0\uDE2C-\uDE37\uDEDF-\uDEEA\uDF01-\uDF03\uDF3C\uDF3E-\uDF44\uDF47\uDF48\uDF4B-\uDF4D\uDF57\uDF62\uDF63\uDF66-\uDF6C\uDF70-\uDF74]|\uD805[\uDCB0-\uDCC3\uDDAF-\uDDB5\uDDB8-\uDDC0\uDE30-\uDE40\uDEAB-\uDEB7]|\uD81A[\uDEF0-\uDEF4\uDF30-\uDF36]|\uD81B[\uDF51-\uDF7E\uDF8F-\uDF92]|\uD82F[\uDC9D\uDC9E]|\uD834[\uDD65-\uDD69\uDD6D-\uDD72\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44]|\uD83A[\uDCD0-\uDCD6]|\uDB40[\uDD00-\uDDEF]/;
+
+function validateLabel(label, processing_option) {
+  if (label.substr(0, 4) === "xn--") {
+    label = punycode.toUnicode(label);
+    processing_option = PROCESSING_OPTIONS.NONTRANSITIONAL;
+  }
+
+  var error = false;
+
+  if (normalize(label) !== label ||
+      (label[3] === "-" && label[4] === "-") ||
+      label[0] === "-" || label[label.length - 1] === "-" ||
+      label.indexOf(".") !== -1 ||
+      label.search(combiningMarksRegex) === 0) {
+    error = true;
+  }
+
+  var len = countSymbols(label);
+  for (var i = 0; i < len; ++i) {
+    var status = findStatus(label.codePointAt(i));
+    if ((processing === PROCESSING_OPTIONS.TRANSITIONAL && status[1] !== "valid") ||
+        (processing === PROCESSING_OPTIONS.NONTRANSITIONAL &&
+         status[1] !== "valid" && status[1] !== "deviation")) {
+      error = true;
+      break;
+    }
+  }
+
+  return {
+    label: label,
+    error: error
+  };
+}
+
+function processing(domain_name, useSTD3, processing_option) {
+  var result = mapChars(domain_name, useSTD3, processing_option);
+  result.string = normalize(result.string);
+
+  var labels = result.string.split(".");
+  for (var i = 0; i < labels.length; ++i) {
+    try {
+      var validation = validateLabel(labels[i]);
+      labels[i] = validation.label;
+      result.error = result.error || validation.error;
+    } catch(e) {
+      result.error = true;
+    }
+  }
+
+  return {
+    string: labels.join("."),
+    error: result.error
+  };
+}
+
+module.exports.toASCII = function(domain_name, useSTD3, processing_option, verifyDnsLength) {
+  var result = processing(domain_name, useSTD3, processing_option);
+  var labels = result.string.split(".");
+  labels = labels.map(function(l) {
+    try {
+      return punycode.toASCII(l);
+    } catch(e) {
+      result.error = true;
+      return l;
+    }
+  });
+
+  if (verifyDnsLength) {
+    var total = labels.slice(0, labels.length - 1).join(".").length;
+    if (total.length > 253 || total.length === 0) {
+      result.error = true;
+    }
+
+    for (var i=0; i < labels.length; ++i) {
+      if (labels.length > 63 || labels.length === 0) {
+        result.error = true;
+        break;
+      }
+    }
+  }
+
+  if (result.error) return null;
+  return labels.join(".");
+};
+
+module.exports.toUnicode = function(domain_name, useSTD3) {
+  var result = processing(domain_name, useSTD3, PROCESSING_OPTIONS.NONTRANSITIONAL);
+
+  return {
+    domain: result.string,
+    error: result.error
+  };
+};
+
+module.exports.PROCESSING_OPTIONS = PROCESSING_OPTIONS;
diff --git a/node_modules/tr46/lib/.gitkeep b/node_modules/tr46/lib/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/node_modules/tr46/lib/mappingTable.json b/node_modules/tr46/lib/mappingTable.json
new file mode 100644
index 0000000..89cf19a
--- /dev/null
+++ b/node_modules/tr46/lib/mappingTable.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/node_modules/tr46/package.json b/node_modules/tr46/package.json
new file mode 100644
index 0000000..b6826da
--- /dev/null
+++ b/node_modules/tr46/package.json
@@ -0,0 +1,31 @@
+{
+  "name": "tr46",
+  "version": "0.0.3",
+  "description": "An implementation of the Unicode TR46 spec",
+  "main": "index.js",
+  "scripts": {
+    "test": "mocha",
+    "pretest": "node scripts/getLatestUnicodeTests.js",
+    "prepublish": "node scripts/generateMappingTable.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/Sebmaster/tr46.js.git"
+  },
+  "keywords": [
+    "unicode",
+    "tr46",
+    "url",
+    "whatwg"
+  ],
+  "author": "Sebastian Mayr <npm@smayr.name>",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/Sebmaster/tr46.js/issues"
+  },
+  "homepage": "https://github.com/Sebmaster/tr46.js#readme",
+  "devDependencies": {
+    "mocha": "^2.2.5",
+    "request": "^2.57.0"
+  }
+}
diff --git a/node_modules/unique-filename/.nyc_output/54942.json b/node_modules/unique-filename/.nyc_output/54942.json
new file mode 100644
index 0000000..9e26dfe
--- /dev/null
+++ b/node_modules/unique-filename/.nyc_output/54942.json
@@ -0,0 +1 @@
+{}
\ No newline at end of file
diff --git a/node_modules/unique-filename/.nyc_output/54944.json b/node_modules/unique-filename/.nyc_output/54944.json
new file mode 100644
index 0000000..3ce72e5
--- /dev/null
+++ b/node_modules/unique-filename/.nyc_output/54944.json
@@ -0,0 +1 @@
+{"./index.js":{"path":"./index.js","s":{"1":1,"2":1,"3":1,"4":6},"b":{"1":[4,2]},"f":{"1":6},"fnMap":{"1":{"name":"(anonymous_1)","line":6,"loc":{"start":{"line":6,"column":17},"end":{"line":6,"column":51}}}},"statementMap":{"1":{"start":{"line":2,"column":0},"end":{"line":2,"column":26}},"2":{"start":{"line":4,"column":0},"end":{"line":4,"column":39}},"3":{"start":{"line":6,"column":0},"end":{"line":8,"column":1}},"4":{"start":{"line":7,"column":2},"end":{"line":7,"column":77}}},"branchMap":{"1":{"line":7,"type":"cond-expr","locations":[{"start":{"line":7,"column":39},"end":{"line":7,"column":51}},{"start":{"line":7,"column":54},"end":{"line":7,"column":56}}]}}}}
\ No newline at end of file
diff --git a/node_modules/unique-filename/LICENSE b/node_modules/unique-filename/LICENSE
new file mode 100644
index 0000000..69619c1
--- /dev/null
+++ b/node_modules/unique-filename/LICENSE
@@ -0,0 +1,5 @@
+Copyright npm, Inc
+
+Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/unique-filename/README.md b/node_modules/unique-filename/README.md
new file mode 100644
index 0000000..74b62b2
--- /dev/null
+++ b/node_modules/unique-filename/README.md
@@ -0,0 +1,33 @@
+unique-filename
+===============
+
+Generate a unique filename for use in temporary directories or caches.
+
+```
+var uniqueFilename = require('unique-filename')
+
+// returns something like: /tmp/912ec803b2ce49e4a541068d495ab570
+var randomTmpfile = uniqueFilename(os.tmpdir())
+
+// returns something like: /tmp/my-test-912ec803b2ce49e4a541068d495ab570
+var randomPrefixedTmpfile = uniqueFilename(os.tmpdir(), 'my-test')
+
+var uniqueTmpfile = uniqueFilename('/tmp', 'testing', '/my/thing/to/uniq/on')
+```
+
+### uniqueFilename(*dir*, *fileprefix*, *uniqstr*) → String
+
+Returns the full path of a unique filename that looks like:
+`dir/prefix-7ddd44c0`
+or `dir/7ddd44c0`
+
+*dir* – The path you want the filename in. `os.tmpdir()` is a good choice for this.
+
+*fileprefix* – A string to append prior to the unique part of the filename.
+The parameter is required if *uniqstr* is also passed in but is otherwise
+optional and can be `undefined`/`null`/`''`. If present and not empty
+then this string plus a hyphen are prepended to the unique part.
+
+*uniqstr* – Optional, if not passed the unique part of the resulting
+filename will be random.  If passed in it will be generated from this string
+in a reproducable way.
diff --git a/node_modules/unique-filename/coverage/__root__/index.html b/node_modules/unique-filename/coverage/__root__/index.html
new file mode 100644
index 0000000..cd55391
--- /dev/null
+++ b/node_modules/unique-filename/coverage/__root__/index.html
@@ -0,0 +1,73 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for __root__/</title>
+    <meta charset="utf-8">
+    <link rel="stylesheet" href="../prettify.css">
+    <link rel="stylesheet" href="../base.css">
+    <style type='text/css'>
+        div.coverage-summary .sorter {
+            background-image: url(../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class="header high">
+    <h1>Code coverage report for <span class="entity">__root__/</span></h1>
+    <h2>
+        Statements: <span class="metric">100% <small>(4 / 4)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Branches: <span class="metric">100% <small>(2 / 2)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Functions: <span class="metric">100% <small>(1 / 1)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Lines: <span class="metric">100% <small>(4 / 4)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Ignored: <span class="metric"><span class="ignore-none">none</span></span> &nbsp;&nbsp;&nbsp;&nbsp;
+    </h2>
+    <div class="path"><a href="../index.html">All files</a> &#187; __root__/</div>
+</div>
+<div class="body">
+<div class="coverage-summary">
+<table>
+<thead>
+<tr>
+   <th data-col="file" data-fmt="html" data-html="true" class="file">File</th>
+   <th data-col="pic" data-type="number" data-fmt="html" data-html="true" class="pic"></th>
+   <th data-col="statements" data-type="number" data-fmt="pct" class="pct">Statements</th>
+   <th data-col="statements_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="branches" data-type="number" data-fmt="pct" class="pct">Branches</th>
+   <th data-col="branches_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="functions" data-type="number" data-fmt="pct" class="pct">Functions</th>
+   <th data-col="functions_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="lines" data-type="number" data-fmt="pct" class="pct">Lines</th>
+   <th data-col="lines_raw" data-type="number" data-fmt="html" class="abs"></th>
+</tr>
+</thead>
+<tbody><tr>
+	<td class="file high" data-value="index.js"><a href="index.js.html">index.js</a></td>
+	<td data-value="100" class="pic high"><span class="cover-fill cover-full" style="width: 100px;"></span><span class="cover-empty" style="width:0px;"></span></td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="4" class="abs high">(4&nbsp;/&nbsp;4)</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="2" class="abs high">(2&nbsp;/&nbsp;2)</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="1" class="abs high">(1&nbsp;/&nbsp;1)</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="4" class="abs high">(4&nbsp;/&nbsp;4)</td>
+	</tr>
+
+</tbody>
+</table>
+</div>
+</div>
+<div class="footer">
+    <div class="meta">Generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Thu Dec 03 2015 15:00:03 GMT-0800 (PST)</div>
+</div>
+<script src="../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/unique-filename/coverage/__root__/index.js.html b/node_modules/unique-filename/coverage/__root__/index.js.html
new file mode 100644
index 0000000..02e5768
--- /dev/null
+++ b/node_modules/unique-filename/coverage/__root__/index.js.html
@@ -0,0 +1,69 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for index.js</title>
+    <meta charset="utf-8">
+    <link rel="stylesheet" href="../prettify.css">
+    <link rel="stylesheet" href="../base.css">
+    <style type='text/css'>
+        div.coverage-summary .sorter {
+            background-image: url(../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class="header high">
+    <h1>Code coverage report for <span class="entity">index.js</span></h1>
+    <h2>
+        Statements: <span class="metric">100% <small>(4 / 4)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Branches: <span class="metric">100% <small>(2 / 2)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Functions: <span class="metric">100% <small>(1 / 1)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Lines: <span class="metric">100% <small>(4 / 4)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Ignored: <span class="metric"><span class="ignore-none">none</span></span> &nbsp;&nbsp;&nbsp;&nbsp;
+    </h2>
+    <div class="path"><a href="../index.html">All files</a> &#187; <a href="index.html">__root__/</a> &#187; index.js</div>
+</div>
+<div class="body">
+<pre><table class="coverage">
+<tr><td class="line-count">1
+2
+3
+4
+5
+6
+7
+8
+9</td><td class="line-coverage"><span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">'use strict'
+var path = require('path')
+&nbsp;
+var uniqueSlug = require('unique-slug')
+&nbsp;
+module.exports = function (filepath, prefix, uniq) {
+  return path.join(filepath, (prefix ? prefix + '-' : '') + uniqueSlug(uniq))
+}
+&nbsp;</pre></td></tr>
+</table></pre>
+
+</div>
+<div class="footer">
+    <div class="meta">Generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Thu Dec 03 2015 15:00:03 GMT-0800 (PST)</div>
+</div>
+<script src="../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/unique-filename/coverage/base.css b/node_modules/unique-filename/coverage/base.css
new file mode 100644
index 0000000..a6a2f32
--- /dev/null
+++ b/node_modules/unique-filename/coverage/base.css
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+}
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+div.header {
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diff --git a/node_modules/unique-filename/coverage/index.html b/node_modules/unique-filename/coverage/index.html
new file mode 100644
index 0000000..b10d186
--- /dev/null
+++ b/node_modules/unique-filename/coverage/index.html
@@ -0,0 +1,73 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for All files</title>
+    <meta charset="utf-8">
+    <link rel="stylesheet" href="prettify.css">
+    <link rel="stylesheet" href="base.css">
+    <style type='text/css'>
+        div.coverage-summary .sorter {
+            background-image: url(sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class="header high">
+    <h1>Code coverage report for <span class="entity">All files</span></h1>
+    <h2>
+        Statements: <span class="metric">100% <small>(4 / 4)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Branches: <span class="metric">100% <small>(2 / 2)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Functions: <span class="metric">100% <small>(1 / 1)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Lines: <span class="metric">100% <small>(4 / 4)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Ignored: <span class="metric"><span class="ignore-none">none</span></span> &nbsp;&nbsp;&nbsp;&nbsp;
+    </h2>
+    <div class="path"></div>
+</div>
+<div class="body">
+<div class="coverage-summary">
+<table>
+<thead>
+<tr>
+   <th data-col="file" data-fmt="html" data-html="true" class="file">File</th>
+   <th data-col="pic" data-type="number" data-fmt="html" data-html="true" class="pic"></th>
+   <th data-col="statements" data-type="number" data-fmt="pct" class="pct">Statements</th>
+   <th data-col="statements_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="branches" data-type="number" data-fmt="pct" class="pct">Branches</th>
+   <th data-col="branches_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="functions" data-type="number" data-fmt="pct" class="pct">Functions</th>
+   <th data-col="functions_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="lines" data-type="number" data-fmt="pct" class="pct">Lines</th>
+   <th data-col="lines_raw" data-type="number" data-fmt="html" class="abs"></th>
+</tr>
+</thead>
+<tbody><tr>
+	<td class="file high" data-value="__root__/"><a href="__root__/index.html">__root__/</a></td>
+	<td data-value="100" class="pic high"><span class="cover-fill cover-full" style="width: 100px;"></span><span class="cover-empty" style="width:0px;"></span></td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="4" class="abs high">(4&nbsp;/&nbsp;4)</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="2" class="abs high">(2&nbsp;/&nbsp;2)</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="1" class="abs high">(1&nbsp;/&nbsp;1)</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="4" class="abs high">(4&nbsp;/&nbsp;4)</td>
+	</tr>
+
+</tbody>
+</table>
+</div>
+</div>
+<div class="footer">
+    <div class="meta">Generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Thu Dec 03 2015 15:00:03 GMT-0800 (PST)</div>
+</div>
+<script src="prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/unique-filename/coverage/prettify.css b/node_modules/unique-filename/coverage/prettify.css
new file mode 100644
index 0000000..b317a7c
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new file mode 100644
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diff --git a/node_modules/unique-filename/coverage/sort-arrow-sprite.png b/node_modules/unique-filename/coverage/sort-arrow-sprite.png
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index 0000000..03f704a
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diff --git a/node_modules/unique-filename/coverage/sorter.js b/node_modules/unique-filename/coverage/sorter.js
new file mode 100644
index 0000000..6afb736
--- /dev/null
+++ b/node_modules/unique-filename/coverage/sorter.js
@@ -0,0 +1,156 @@
+var addSorting = (function () {
+    "use strict";
+    var cols,
+        currentSort = {
+            index: 0,
+            desc: false
+        };
+
+    // returns the summary table element
+    function getTable() { return document.querySelector('.coverage-summary table'); }
+    // returns the thead element of the summary table
+    function getTableHeader() { return getTable().querySelector('thead tr'); }
+    // returns the tbody element of the summary table
+    function getTableBody() { return getTable().querySelector('tbody'); }
+    // returns the th element for nth column
+    function getNthColumn(n) { return getTableHeader().querySelectorAll('th')[n]; }
+
+    // loads all columns
+    function loadColumns() {
+        var colNodes = getTableHeader().querySelectorAll('th'),
+            colNode,
+            cols = [],
+            col,
+            i;
+
+        for (i = 0; i < colNodes.length; i += 1) {
+            colNode = colNodes[i];
+            col = {
+                key: colNode.getAttribute('data-col'),
+                sortable: !colNode.getAttribute('data-nosort'),
+                type: colNode.getAttribute('data-type') || 'string'
+            };
+            cols.push(col);
+            if (col.sortable) {
+                col.defaultDescSort = col.type === 'number';
+                colNode.innerHTML = colNode.innerHTML + '<span class="sorter"></span>';
+            }
+        }
+        return cols;
+    }
+    // attaches a data attribute to every tr element with an object
+    // of data values keyed by column name
+    function loadRowData(tableRow) {
+        var tableCols = tableRow.querySelectorAll('td'),
+            colNode,
+            col,
+            data = {},
+            i,
+            val;
+        for (i = 0; i < tableCols.length; i += 1) {
+            colNode = tableCols[i];
+            col = cols[i];
+            val = colNode.getAttribute('data-value');
+            if (col.type === 'number') {
+                val = Number(val);
+            }
+            data[col.key] = val;
+        }
+        return data;
+    }
+    // loads all row data
+    function loadData() {
+        var rows = getTableBody().querySelectorAll('tr'),
+            i;
+
+        for (i = 0; i < rows.length; i += 1) {
+            rows[i].data = loadRowData(rows[i]);
+        }
+    }
+    // sorts the table using the data for the ith column
+    function sortByIndex(index, desc) {
+        var key = cols[index].key,
+            sorter = function (a, b) {
+                a = a.data[key];
+                b = b.data[key];
+                return a < b ? -1 : a > b ? 1 : 0;
+            },
+            finalSorter = sorter,
+            tableBody = document.querySelector('.coverage-summary tbody'),
+            rowNodes = tableBody.querySelectorAll('tr'),
+            rows = [],
+            i;
+
+        if (desc) {
+            finalSorter = function (a, b) {
+                return -1 * sorter(a, b);
+            };
+        }
+
+        for (i = 0; i < rowNodes.length; i += 1) {
+            rows.push(rowNodes[i]);
+            tableBody.removeChild(rowNodes[i]);
+        }
+
+        rows.sort(finalSorter);
+
+        for (i = 0; i < rows.length; i += 1) {
+            tableBody.appendChild(rows[i]);
+        }
+    }
+    // removes sort indicators for current column being sorted
+    function removeSortIndicators() {
+        var col = getNthColumn(currentSort.index),
+            cls = col.className;
+
+        cls = cls.replace(/ sorted$/, '').replace(/ sorted-desc$/, '');
+        col.className = cls;
+    }
+    // adds sort indicators for current column being sorted
+    function addSortIndicators() {
+        getNthColumn(currentSort.index).className += currentSort.desc ? ' sorted-desc' : ' sorted';
+    }
+    // adds event listeners for all sorter widgets
+    function enableUI() {
+        var i,
+            el,
+            ithSorter = function ithSorter(i) {
+                var col = cols[i];
+
+                return function () {
+                    var desc = col.defaultDescSort;
+
+                    if (currentSort.index === i) {
+                        desc = !currentSort.desc;
+                    }
+                    sortByIndex(i, desc);
+                    removeSortIndicators();
+                    currentSort.index = i;
+                    currentSort.desc = desc;
+                    addSortIndicators();
+                };
+            };
+        for (i =0 ; i < cols.length; i += 1) {
+            if (cols[i].sortable) {
+                el = getNthColumn(i).querySelector('.sorter');
+                if (el.addEventListener) {
+                    el.addEventListener('click', ithSorter(i));
+                } else {
+                    el.attachEvent('onclick', ithSorter(i));
+                }
+            }
+        }
+    }
+    // adds sorting functionality to the UI
+    return function () {
+        if (!getTable()) {
+            return;
+        }
+        cols = loadColumns();
+        loadData(cols);
+        addSortIndicators();
+        enableUI();
+    };
+})();
+
+window.addEventListener('load', addSorting);
diff --git a/node_modules/unique-filename/index.js b/node_modules/unique-filename/index.js
new file mode 100644
index 0000000..02bf1e2
--- /dev/null
+++ b/node_modules/unique-filename/index.js
@@ -0,0 +1,8 @@
+'use strict'
+var path = require('path')
+
+var uniqueSlug = require('unique-slug')
+
+module.exports = function (filepath, prefix, uniq) {
+  return path.join(filepath, (prefix ? prefix + '-' : '') + uniqueSlug(uniq))
+}
diff --git a/node_modules/unique-filename/package.json b/node_modules/unique-filename/package.json
new file mode 100644
index 0000000..bc429aa
--- /dev/null
+++ b/node_modules/unique-filename/package.json
@@ -0,0 +1,27 @@
+{
+  "name": "unique-filename",
+  "version": "1.1.1",
+  "description": "Generate a unique filename for use in temporary directories or caches.",
+  "main": "index.js",
+  "scripts": {
+    "test": "standard && tap test"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/iarna/unique-filename.git"
+  },
+  "keywords": [],
+  "author": "Rebecca Turner <me@re-becca.org> (http://re-becca.org/)",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/iarna/unique-filename/issues"
+  },
+  "homepage": "https://github.com/iarna/unique-filename",
+  "devDependencies": {
+    "standard": "^5.4.1",
+    "tap": "^2.3.1"
+  },
+  "dependencies": {
+    "unique-slug": "^2.0.0"
+  }
+}
diff --git a/node_modules/unique-filename/test/index.js b/node_modules/unique-filename/test/index.js
new file mode 100644
index 0000000..105b4e5
--- /dev/null
+++ b/node_modules/unique-filename/test/index.js
@@ -0,0 +1,23 @@
+'sue strict'
+var t = require('tap')
+var uniqueFilename = require('../index.js')
+
+t.plan(6)
+
+var randomTmpfile = uniqueFilename('tmp')
+t.like(randomTmpfile, /^tmp.[a-f0-9]{8}$/, 'random tmp file')
+
+var randomAgain = uniqueFilename('tmp')
+t.notEqual(randomAgain, randomTmpfile, 'random tmp files are not the same')
+
+var randomPrefixedTmpfile = uniqueFilename('tmp', 'my-test')
+t.like(randomPrefixedTmpfile, /^tmp.my-test-[a-f0-9]{8}$/, 'random prefixed tmp file')
+
+var randomPrefixedAgain = uniqueFilename('tmp', 'my-test')
+t.notEqual(randomPrefixedAgain, randomPrefixedTmpfile, 'random prefixed tmp files are not the same')
+
+var uniqueTmpfile = uniqueFilename('tmp', 'testing', '/my/thing/to/uniq/on')
+t.like(uniqueTmpfile, /^tmp.testing-7ddd44c0$/, 'unique filename')
+
+var uniqueAgain = uniqueFilename('tmp', 'testing', '/my/thing/to/uniq/on')
+t.is(uniqueTmpfile, uniqueAgain, 'same unique string component produces same filename')
diff --git a/node_modules/unique-slug/.travis.yml b/node_modules/unique-slug/.travis.yml
new file mode 100644
index 0000000..5651fce
--- /dev/null
+++ b/node_modules/unique-slug/.travis.yml
@@ -0,0 +1,10 @@
+language: node_js
+sudo: false
+before_install:
+  - "npm -g install npm"
+node_js:
+  - "6"
+  - "8"
+  - "10"
+  - "lts/*"
+  - "node"
diff --git a/node_modules/unique-slug/LICENSE b/node_modules/unique-slug/LICENSE
new file mode 100644
index 0000000..7953647
--- /dev/null
+++ b/node_modules/unique-slug/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright npm, Inc
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/unique-slug/README.md b/node_modules/unique-slug/README.md
new file mode 100644
index 0000000..87f92f1
--- /dev/null
+++ b/node_modules/unique-slug/README.md
@@ -0,0 +1,19 @@
+unique-slug
+===========
+
+Generate a unique character string suitible for use in files and URLs.
+
+```
+var uniqueSlug = require('unique-slug')
+
+var randomSlug = uniqueSlug()
+var fileSlug = uniqueSlug('/etc/passwd')
+```
+
+### uniqueSlug(*str*) → String (8 chars)
+
+If *str* is passed in then the return value will be its murmur hash in
+hex.
+
+If *str* is not passed in, it will be 4 randomly generated bytes
+converted into 8 hexadecimal characters.
diff --git a/node_modules/unique-slug/index.js b/node_modules/unique-slug/index.js
new file mode 100644
index 0000000..fa4761a
--- /dev/null
+++ b/node_modules/unique-slug/index.js
@@ -0,0 +1,11 @@
+'use strict'
+var MurmurHash3 = require('imurmurhash')
+
+module.exports = function (uniq) {
+  if (uniq) {
+    var hash = new MurmurHash3(uniq)
+    return ('00000000' + hash.result().toString(16)).substr(-8)
+  } else {
+    return (Math.random().toString(16) + '0000000').substr(2, 8)
+  }
+}
diff --git a/node_modules/unique-slug/package.json b/node_modules/unique-slug/package.json
new file mode 100644
index 0000000..2142e68
--- /dev/null
+++ b/node_modules/unique-slug/package.json
@@ -0,0 +1,23 @@
+{
+  "name": "unique-slug",
+  "version": "2.0.2",
+  "description": "Generate a unique character string suitible for use in files and URLs.",
+  "main": "index.js",
+  "scripts": {
+    "test": "standard && tap --coverage test"
+  },
+  "keywords": [],
+  "author": "Rebecca Turner <me@re-becca.org> (http://re-becca.org)",
+  "license": "ISC",
+  "devDependencies": {
+    "standard": "^12.0.1",
+    "tap": "^12.7.0"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/iarna/unique-slug.git"
+  },
+  "dependencies": {
+    "imurmurhash": "^0.1.4"
+  }
+}
diff --git a/node_modules/unique-slug/test/index.js b/node_modules/unique-slug/test/index.js
new file mode 100644
index 0000000..0f4ccad
--- /dev/null
+++ b/node_modules/unique-slug/test/index.js
@@ -0,0 +1,13 @@
+'use strict'
+var t = require('tap')
+var uniqueSlug = require('../index.js')
+
+t.plan(5)
+var slugA = uniqueSlug()
+t.is(slugA.length, 8, 'random slugs are 8 chars')
+t.notEqual(slugA, uniqueSlug(), "two slugs aren't the same")
+var base = '/path/to/thingy'
+var slugB = uniqueSlug(base)
+t.is(slugB.length, 8, 'string based slugs are 8 chars')
+t.is(slugB, uniqueSlug(base), 'two string based slugs, from the same string are the same')
+t.notEqual(slugB, uniqueSlug(slugA), 'two string based slongs, from diff strings are different')
diff --git a/node_modules/util-deprecate/History.md b/node_modules/util-deprecate/History.md
new file mode 100644
index 0000000..acc8675
--- /dev/null
+++ b/node_modules/util-deprecate/History.md
@@ -0,0 +1,16 @@
+
+1.0.2 / 2015-10-07
+==================
+
+  * use try/catch when checking `localStorage` (#3, @kumavis)
+
+1.0.1 / 2014-11-25
+==================
+
+  * browser: use `console.warn()` for deprecation calls
+  * browser: more jsdocs
+
+1.0.0 / 2014-04-30
+==================
+
+  * initial commit
diff --git a/node_modules/util-deprecate/LICENSE b/node_modules/util-deprecate/LICENSE
new file mode 100644
index 0000000..6a60e8c
--- /dev/null
+++ b/node_modules/util-deprecate/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2014 Nathan Rajlich <nathan@tootallnate.net>
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/util-deprecate/README.md b/node_modules/util-deprecate/README.md
new file mode 100644
index 0000000..75622fa
--- /dev/null
+++ b/node_modules/util-deprecate/README.md
@@ -0,0 +1,53 @@
+util-deprecate
+==============
+### The Node.js `util.deprecate()` function with browser support
+
+In Node.js, this module simply re-exports the `util.deprecate()` function.
+
+In the web browser (i.e. via browserify), a browser-specific implementation
+of the `util.deprecate()` function is used.
+
+
+## API
+
+A `deprecate()` function is the only thing exposed by this module.
+
+``` javascript
+// setup:
+exports.foo = deprecate(foo, 'foo() is deprecated, use bar() instead');
+
+
+// users see:
+foo();
+// foo() is deprecated, use bar() instead
+foo();
+foo();
+```
+
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2014 Nathan Rajlich <nathan@tootallnate.net>
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/util-deprecate/browser.js b/node_modules/util-deprecate/browser.js
new file mode 100644
index 0000000..549ae2f
--- /dev/null
+++ b/node_modules/util-deprecate/browser.js
@@ -0,0 +1,67 @@
+
+/**
+ * Module exports.
+ */
+
+module.exports = deprecate;
+
+/**
+ * Mark that a method should not be used.
+ * Returns a modified function which warns once by default.
+ *
+ * If `localStorage.noDeprecation = true` is set, then it is a no-op.
+ *
+ * If `localStorage.throwDeprecation = true` is set, then deprecated functions
+ * will throw an Error when invoked.
+ *
+ * If `localStorage.traceDeprecation = true` is set, then deprecated functions
+ * will invoke `console.trace()` instead of `console.error()`.
+ *
+ * @param {Function} fn - the function to deprecate
+ * @param {String} msg - the string to print to the console when `fn` is invoked
+ * @returns {Function} a new "deprecated" version of `fn`
+ * @api public
+ */
+
+function deprecate (fn, msg) {
+  if (config('noDeprecation')) {
+    return fn;
+  }
+
+  var warned = false;
+  function deprecated() {
+    if (!warned) {
+      if (config('throwDeprecation')) {
+        throw new Error(msg);
+      } else if (config('traceDeprecation')) {
+        console.trace(msg);
+      } else {
+        console.warn(msg);
+      }
+      warned = true;
+    }
+    return fn.apply(this, arguments);
+  }
+
+  return deprecated;
+}
+
+/**
+ * Checks `localStorage` for boolean values for the given `name`.
+ *
+ * @param {String} name
+ * @returns {Boolean}
+ * @api private
+ */
+
+function config (name) {
+  // accessing global.localStorage can trigger a DOMException in sandboxed iframes
+  try {
+    if (!global.localStorage) return false;
+  } catch (_) {
+    return false;
+  }
+  var val = global.localStorage[name];
+  if (null == val) return false;
+  return String(val).toLowerCase() === 'true';
+}
diff --git a/node_modules/util-deprecate/node.js b/node_modules/util-deprecate/node.js
new file mode 100644
index 0000000..5e6fcff
--- /dev/null
+++ b/node_modules/util-deprecate/node.js
@@ -0,0 +1,6 @@
+
+/**
+ * For Node.js, simply re-export the core `util.deprecate` function.
+ */
+
+module.exports = require('util').deprecate;
diff --git a/node_modules/util-deprecate/package.json b/node_modules/util-deprecate/package.json
new file mode 100644
index 0000000..2e79f89
--- /dev/null
+++ b/node_modules/util-deprecate/package.json
@@ -0,0 +1,27 @@
+{
+  "name": "util-deprecate",
+  "version": "1.0.2",
+  "description": "The Node.js `util.deprecate()` function with browser support",
+  "main": "node.js",
+  "browser": "browser.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/TooTallNate/util-deprecate.git"
+  },
+  "keywords": [
+    "util",
+    "deprecate",
+    "browserify",
+    "browser",
+    "node"
+  ],
+  "author": "Nathan Rajlich <nathan@tootallnate.net> (http://n8.io/)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/TooTallNate/util-deprecate/issues"
+  },
+  "homepage": "https://github.com/TooTallNate/util-deprecate"
+}
diff --git a/node_modules/webidl-conversions/LICENSE.md b/node_modules/webidl-conversions/LICENSE.md
new file mode 100644
index 0000000..d4a994f
--- /dev/null
+++ b/node_modules/webidl-conversions/LICENSE.md
@@ -0,0 +1,12 @@
+# The BSD 2-Clause License
+
+Copyright (c) 2014, Domenic Denicola
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/node_modules/webidl-conversions/README.md b/node_modules/webidl-conversions/README.md
new file mode 100644
index 0000000..3657890
--- /dev/null
+++ b/node_modules/webidl-conversions/README.md
@@ -0,0 +1,53 @@
+# WebIDL Type Conversions on JavaScript Values
+
+This package implements, in JavaScript, the algorithms to convert a given JavaScript value according to a given [WebIDL](http://heycam.github.io/webidl/) [type](http://heycam.github.io/webidl/#idl-types).
+
+The goal is that you should be able to write code like
+
+```js
+const conversions = require("webidl-conversions");
+
+function doStuff(x, y) {
+    x = conversions["boolean"](x);
+    y = conversions["unsigned long"](y);
+    // actual algorithm code here
+}
+```
+
+and your function `doStuff` will behave the same as a WebIDL operation declared as
+
+```webidl
+void doStuff(boolean x, unsigned long y);
+```
+
+## API
+
+This package's main module's default export is an object with a variety of methods, each corresponding to a different WebIDL type. Each method, when invoked on a JavaScript value, will give back the new JavaScript value that results after passing through the WebIDL conversion rules. (See below for more details on what that means.) Alternately, the method could throw an error, if the WebIDL algorithm is specified to do so: for example `conversions["float"](NaN)` [will throw a `TypeError`](http://heycam.github.io/webidl/#es-float).
+
+## Status
+
+All of the numeric types are implemented (float being implemented as double) and some others are as well - check the source for all of them. This list will grow over time in service of the [HTML as Custom Elements](https://github.com/dglazkov/html-as-custom-elements) project, but in the meantime, pull requests welcome!
+
+I'm not sure yet what the strategy will be for modifiers, e.g. [`[Clamp]`](http://heycam.github.io/webidl/#Clamp). Maybe something like `conversions["unsigned long"](x, { clamp: true })`? We'll see.
+
+We might also want to extend the API to give better error messages, e.g. "Argument 1 of HTMLMediaElement.fastSeek is not a finite floating-point value" instead of "Argument is not a finite floating-point value." This would require passing in more information to the conversion functions than we currently do.
+
+## Background
+
+What's actually going on here, conceptually, is pretty weird. Let's try to explain.
+
+WebIDL, as part of its madness-inducing design, has its own type system. When people write algorithms in web platform specs, they usually operate on WebIDL values, i.e. instances of WebIDL types. For example, if they were specifying the algorithm for our `doStuff` operation above, they would treat `x` as a WebIDL value of [WebIDL type `boolean`](http://heycam.github.io/webidl/#idl-boolean). Crucially, they would _not_ treat `x` as a JavaScript variable whose value is either the JavaScript `true` or `false`. They're instead working in a different type system altogether, with its own rules.
+
+Separately from its type system, WebIDL defines a ["binding"](http://heycam.github.io/webidl/#ecmascript-binding) of the type system into JavaScript. This contains rules like: when you pass a JavaScript value to the JavaScript method that manifests a given WebIDL operation, how does that get converted into a WebIDL value? For example, a JavaScript `true` passed in the position of a WebIDL `boolean` argument becomes a WebIDL `true`. But, a JavaScript `true` passed in the position of a [WebIDL `unsigned long`](http://heycam.github.io/webidl/#idl-unsigned-long) becomes a WebIDL `1`. And so on.
+
+Finally, we have the actual implementation code. This is usually C++, although these days [some smart people are using Rust](https://github.com/servo/servo). The implementation, of course, has its own type system. So when they implement the WebIDL algorithms, they don't actually use WebIDL values, since those aren't "real" outside of specs. Instead, implementations apply the WebIDL binding rules in such a way as to convert incoming JavaScript values into C++ values. For example, if code in the browser called `doStuff(true, true)`, then the implementation code would eventually receive a C++ `bool` containing `true` and a C++ `uint32_t` containing `1`.
+
+The upside of all this is that implementations can abstract all the conversion logic away, letting WebIDL handle it, and focus on implementing the relevant methods in C++ with values of the correct type already provided. That is payoff of WebIDL, in a nutshell.
+
+And getting to that payoff is the goal of _this_ project—but for JavaScript implementations, instead of C++ ones. That is, this library is designed to make it easier for JavaScript developers to write functions that behave like a given WebIDL operation. So conceptually, the conversion pipeline, which in its general form is JavaScript values ↦ WebIDL values ↦ implementation-language values, in this case becomes JavaScript values ↦ WebIDL values ↦ JavaScript values. And that intermediate step is where all the logic is performed: a JavaScript `true` becomes a WebIDL `1` in an unsigned long context, which then becomes a JavaScript `1`.
+
+## Don't Use This
+
+Seriously, why would you ever use this? You really shouldn't. WebIDL is … not great, and you shouldn't be emulating its semantics. If you're looking for a generic argument-processing library, you should find one with better rules than those from WebIDL. In general, your JavaScript should not be trying to become more like WebIDL; if anything, we should fix WebIDL to make it more like JavaScript.
+
+The _only_ people who should use this are those trying to create faithful implementations (or polyfills) of web platform interfaces defined in WebIDL.
diff --git a/node_modules/webidl-conversions/lib/index.js b/node_modules/webidl-conversions/lib/index.js
new file mode 100644
index 0000000..c5153a3
--- /dev/null
+++ b/node_modules/webidl-conversions/lib/index.js
@@ -0,0 +1,189 @@
+"use strict";
+
+var conversions = {};
+module.exports = conversions;
+
+function sign(x) {
+    return x < 0 ? -1 : 1;
+}
+
+function evenRound(x) {
+    // Round x to the nearest integer, choosing the even integer if it lies halfway between two.
+    if ((x % 1) === 0.5 && (x & 1) === 0) { // [even number].5; round down (i.e. floor)
+        return Math.floor(x);
+    } else {
+        return Math.round(x);
+    }
+}
+
+function createNumberConversion(bitLength, typeOpts) {
+    if (!typeOpts.unsigned) {
+        --bitLength;
+    }
+    const lowerBound = typeOpts.unsigned ? 0 : -Math.pow(2, bitLength);
+    const upperBound = Math.pow(2, bitLength) - 1;
+
+    const moduloVal = typeOpts.moduloBitLength ? Math.pow(2, typeOpts.moduloBitLength) : Math.pow(2, bitLength);
+    const moduloBound = typeOpts.moduloBitLength ? Math.pow(2, typeOpts.moduloBitLength - 1) : Math.pow(2, bitLength - 1);
+
+    return function(V, opts) {
+        if (!opts) opts = {};
+
+        let x = +V;
+
+        if (opts.enforceRange) {
+            if (!Number.isFinite(x)) {
+                throw new TypeError("Argument is not a finite number");
+            }
+
+            x = sign(x) * Math.floor(Math.abs(x));
+            if (x < lowerBound || x > upperBound) {
+                throw new TypeError("Argument is not in byte range");
+            }
+
+            return x;
+        }
+
+        if (!isNaN(x) && opts.clamp) {
+            x = evenRound(x);
+
+            if (x < lowerBound) x = lowerBound;
+            if (x > upperBound) x = upperBound;
+            return x;
+        }
+
+        if (!Number.isFinite(x) || x === 0) {
+            return 0;
+        }
+
+        x = sign(x) * Math.floor(Math.abs(x));
+        x = x % moduloVal;
+
+        if (!typeOpts.unsigned && x >= moduloBound) {
+            return x - moduloVal;
+        } else if (typeOpts.unsigned) {
+            if (x < 0) {
+              x += moduloVal;
+            } else if (x === -0) { // don't return negative zero
+              return 0;
+            }
+        }
+
+        return x;
+    }
+}
+
+conversions["void"] = function () {
+    return undefined;
+};
+
+conversions["boolean"] = function (val) {
+    return !!val;
+};
+
+conversions["byte"] = createNumberConversion(8, { unsigned: false });
+conversions["octet"] = createNumberConversion(8, { unsigned: true });
+
+conversions["short"] = createNumberConversion(16, { unsigned: false });
+conversions["unsigned short"] = createNumberConversion(16, { unsigned: true });
+
+conversions["long"] = createNumberConversion(32, { unsigned: false });
+conversions["unsigned long"] = createNumberConversion(32, { unsigned: true });
+
+conversions["long long"] = createNumberConversion(32, { unsigned: false, moduloBitLength: 64 });
+conversions["unsigned long long"] = createNumberConversion(32, { unsigned: true, moduloBitLength: 64 });
+
+conversions["double"] = function (V) {
+    const x = +V;
+
+    if (!Number.isFinite(x)) {
+        throw new TypeError("Argument is not a finite floating-point value");
+    }
+
+    return x;
+};
+
+conversions["unrestricted double"] = function (V) {
+    const x = +V;
+
+    if (isNaN(x)) {
+        throw new TypeError("Argument is NaN");
+    }
+
+    return x;
+};
+
+// not quite valid, but good enough for JS
+conversions["float"] = conversions["double"];
+conversions["unrestricted float"] = conversions["unrestricted double"];
+
+conversions["DOMString"] = function (V, opts) {
+    if (!opts) opts = {};
+
+    if (opts.treatNullAsEmptyString && V === null) {
+        return "";
+    }
+
+    return String(V);
+};
+
+conversions["ByteString"] = function (V, opts) {
+    const x = String(V);
+    let c = undefined;
+    for (let i = 0; (c = x.codePointAt(i)) !== undefined; ++i) {
+        if (c > 255) {
+            throw new TypeError("Argument is not a valid bytestring");
+        }
+    }
+
+    return x;
+};
+
+conversions["USVString"] = function (V) {
+    const S = String(V);
+    const n = S.length;
+    const U = [];
+    for (let i = 0; i < n; ++i) {
+        const c = S.charCodeAt(i);
+        if (c < 0xD800 || c > 0xDFFF) {
+            U.push(String.fromCodePoint(c));
+        } else if (0xDC00 <= c && c <= 0xDFFF) {
+            U.push(String.fromCodePoint(0xFFFD));
+        } else {
+            if (i === n - 1) {
+                U.push(String.fromCodePoint(0xFFFD));
+            } else {
+                const d = S.charCodeAt(i + 1);
+                if (0xDC00 <= d && d <= 0xDFFF) {
+                    const a = c & 0x3FF;
+                    const b = d & 0x3FF;
+                    U.push(String.fromCodePoint((2 << 15) + (2 << 9) * a + b));
+                    ++i;
+                } else {
+                    U.push(String.fromCodePoint(0xFFFD));
+                }
+            }
+        }
+    }
+
+    return U.join('');
+};
+
+conversions["Date"] = function (V, opts) {
+    if (!(V instanceof Date)) {
+        throw new TypeError("Argument is not a Date object");
+    }
+    if (isNaN(V)) {
+        return undefined;
+    }
+
+    return V;
+};
+
+conversions["RegExp"] = function (V, opts) {
+    if (!(V instanceof RegExp)) {
+        V = new RegExp(V);
+    }
+
+    return V;
+};
diff --git a/node_modules/webidl-conversions/package.json b/node_modules/webidl-conversions/package.json
new file mode 100644
index 0000000..c31bc07
--- /dev/null
+++ b/node_modules/webidl-conversions/package.json
@@ -0,0 +1,23 @@
+{
+  "name": "webidl-conversions",
+  "version": "3.0.1",
+  "description": "Implements the WebIDL algorithms for converting to and from JavaScript values",
+  "main": "lib/index.js",
+  "scripts": {
+    "test": "mocha test/*.js"
+  },
+  "repository": "jsdom/webidl-conversions",
+  "keywords": [
+    "webidl",
+    "web",
+    "types"
+  ],
+  "files": [
+    "lib/"
+  ],
+  "author": "Domenic Denicola <d@domenic.me> (https://domenic.me/)",
+  "license": "BSD-2-Clause",
+  "devDependencies": {
+    "mocha": "^1.21.4"
+  }
+}
diff --git a/node_modules/whatwg-url/LICENSE.txt b/node_modules/whatwg-url/LICENSE.txt
new file mode 100644
index 0000000..54dfac3
--- /dev/null
+++ b/node_modules/whatwg-url/LICENSE.txt
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015–2016 Sebastian Mayr
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/node_modules/whatwg-url/README.md b/node_modules/whatwg-url/README.md
new file mode 100644
index 0000000..4347a7f
--- /dev/null
+++ b/node_modules/whatwg-url/README.md
@@ -0,0 +1,67 @@
+# whatwg-url
+
+whatwg-url is a full implementation of the WHATWG [URL Standard](https://url.spec.whatwg.org/). It can be used standalone, but it also exposes a lot of the internal algorithms that are useful for integrating a URL parser into a project like [jsdom](https://github.com/tmpvar/jsdom).
+
+## Current Status
+
+whatwg-url is currently up to date with the URL spec up to commit [a62223](https://github.com/whatwg/url/commit/a622235308342c9adc7fc2fd1659ff059f7d5e2a).
+
+## API
+
+### The `URL` Constructor
+
+The main API is the [`URL`](https://url.spec.whatwg.org/#url) export, which follows the spec's behavior in all ways (including e.g. `USVString` conversion). Most consumers of this library will want to use this.
+
+### Low-level URL Standard API
+
+The following methods are exported for use by places like jsdom that need to implement things like [`HTMLHyperlinkElementUtils`](https://html.spec.whatwg.org/#htmlhyperlinkelementutils). They operate on or return an "internal URL" or ["URL record"](https://url.spec.whatwg.org/#concept-url) type.
+
+- [URL parser](https://url.spec.whatwg.org/#concept-url-parser): `parseURL(input, { baseURL, encodingOverride })`
+- [Basic URL parser](https://url.spec.whatwg.org/#concept-basic-url-parser): `basicURLParse(input, { baseURL, encodingOverride, url, stateOverride })`
+- [URL serializer](https://url.spec.whatwg.org/#concept-url-serializer): `serializeURL(urlRecord, excludeFragment)`
+- [Host serializer](https://url.spec.whatwg.org/#concept-host-serializer): `serializeHost(hostFromURLRecord)`
+- [Serialize an integer](https://url.spec.whatwg.org/#serialize-an-integer): `serializeInteger(number)`
+- [Origin](https://url.spec.whatwg.org/#concept-url-origin) [serializer](https://html.spec.whatwg.org/multipage/browsers.html#serialization-of-an-origin): `serializeURLOrigin(urlRecord)`
+- [Set the username](https://url.spec.whatwg.org/#set-the-username): `setTheUsername(urlRecord, usernameString)`
+- [Set the password](https://url.spec.whatwg.org/#set-the-password): `setThePassword(urlRecord, passwordString)`
+- [Cannot have a username/password/port](https://url.spec.whatwg.org/#cannot-have-a-username-password-port): `cannotHaveAUsernamePasswordPort(urlRecord)`
+
+The `stateOverride` parameter is one of the following strings:
+
+- [`"scheme start"`](https://url.spec.whatwg.org/#scheme-start-state)
+- [`"scheme"`](https://url.spec.whatwg.org/#scheme-state)
+- [`"no scheme"`](https://url.spec.whatwg.org/#no-scheme-state)
+- [`"special relative or authority"`](https://url.spec.whatwg.org/#special-relative-or-authority-state)
+- [`"path or authority"`](https://url.spec.whatwg.org/#path-or-authority-state)
+- [`"relative"`](https://url.spec.whatwg.org/#relative-state)
+- [`"relative slash"`](https://url.spec.whatwg.org/#relative-slash-state)
+- [`"special authority slashes"`](https://url.spec.whatwg.org/#special-authority-slashes-state)
+- [`"special authority ignore slashes"`](https://url.spec.whatwg.org/#special-authority-ignore-slashes-state)
+- [`"authority"`](https://url.spec.whatwg.org/#authority-state)
+- [`"host"`](https://url.spec.whatwg.org/#host-state)
+- [`"hostname"`](https://url.spec.whatwg.org/#hostname-state)
+- [`"port"`](https://url.spec.whatwg.org/#port-state)
+- [`"file"`](https://url.spec.whatwg.org/#file-state)
+- [`"file slash"`](https://url.spec.whatwg.org/#file-slash-state)
+- [`"file host"`](https://url.spec.whatwg.org/#file-host-state)
+- [`"path start"`](https://url.spec.whatwg.org/#path-start-state)
+- [`"path"`](https://url.spec.whatwg.org/#path-state)
+- [`"cannot-be-a-base-URL path"`](https://url.spec.whatwg.org/#cannot-be-a-base-url-path-state)
+- [`"query"`](https://url.spec.whatwg.org/#query-state)
+- [`"fragment"`](https://url.spec.whatwg.org/#fragment-state)
+
+The URL record type has the following API:
+
+- [`scheme`](https://url.spec.whatwg.org/#concept-url-scheme)
+- [`username`](https://url.spec.whatwg.org/#concept-url-username)
+- [`password`](https://url.spec.whatwg.org/#concept-url-password)
+- [`host`](https://url.spec.whatwg.org/#concept-url-host)
+- [`port`](https://url.spec.whatwg.org/#concept-url-port)
+- [`path`](https://url.spec.whatwg.org/#concept-url-path) (as an array)
+- [`query`](https://url.spec.whatwg.org/#concept-url-query)
+- [`fragment`](https://url.spec.whatwg.org/#concept-url-fragment)
+- [`cannotBeABaseURL`](https://url.spec.whatwg.org/#url-cannot-be-a-base-url-flag) (as a boolean)
+
+These properties should be treated with care, as in general changing them will cause the URL record to be in an inconsistent state until the appropriate invocation of `basicURLParse` is used to fix it up. You can see examples of this in the URL Standard, where there are many step sequences like "4. Set context object’s url’s fragment to the empty string. 5. Basic URL parse _input_ with context object’s url as _url_ and fragment state as _state override_." In between those two steps, a URL record is in an unusable state.
+
+The return value of "failure" in the spec is represented by the string `"failure"`. That is, functions like `parseURL` and `basicURLParse` can return _either_ a URL record _or_ the string `"failure"`.
diff --git a/node_modules/whatwg-url/lib/URL-impl.js b/node_modules/whatwg-url/lib/URL-impl.js
new file mode 100644
index 0000000..dc7452c
--- /dev/null
+++ b/node_modules/whatwg-url/lib/URL-impl.js
@@ -0,0 +1,200 @@
+"use strict";
+const usm = require("./url-state-machine");
+
+exports.implementation = class URLImpl {
+  constructor(constructorArgs) {
+    const url = constructorArgs[0];
+    const base = constructorArgs[1];
+
+    let parsedBase = null;
+    if (base !== undefined) {
+      parsedBase = usm.basicURLParse(base);
+      if (parsedBase === "failure") {
+        throw new TypeError("Invalid base URL");
+      }
+    }
+
+    const parsedURL = usm.basicURLParse(url, { baseURL: parsedBase });
+    if (parsedURL === "failure") {
+      throw new TypeError("Invalid URL");
+    }
+
+    this._url = parsedURL;
+
+    // TODO: query stuff
+  }
+
+  get href() {
+    return usm.serializeURL(this._url);
+  }
+
+  set href(v) {
+    const parsedURL = usm.basicURLParse(v);
+    if (parsedURL === "failure") {
+      throw new TypeError("Invalid URL");
+    }
+
+    this._url = parsedURL;
+  }
+
+  get origin() {
+    return usm.serializeURLOrigin(this._url);
+  }
+
+  get protocol() {
+    return this._url.scheme + ":";
+  }
+
+  set protocol(v) {
+    usm.basicURLParse(v + ":", { url: this._url, stateOverride: "scheme start" });
+  }
+
+  get username() {
+    return this._url.username;
+  }
+
+  set username(v) {
+    if (usm.cannotHaveAUsernamePasswordPort(this._url)) {
+      return;
+    }
+
+    usm.setTheUsername(this._url, v);
+  }
+
+  get password() {
+    return this._url.password;
+  }
+
+  set password(v) {
+    if (usm.cannotHaveAUsernamePasswordPort(this._url)) {
+      return;
+    }
+
+    usm.setThePassword(this._url, v);
+  }
+
+  get host() {
+    const url = this._url;
+
+    if (url.host === null) {
+      return "";
+    }
+
+    if (url.port === null) {
+      return usm.serializeHost(url.host);
+    }
+
+    return usm.serializeHost(url.host) + ":" + usm.serializeInteger(url.port);
+  }
+
+  set host(v) {
+    if (this._url.cannotBeABaseURL) {
+      return;
+    }
+
+    usm.basicURLParse(v, { url: this._url, stateOverride: "host" });
+  }
+
+  get hostname() {
+    if (this._url.host === null) {
+      return "";
+    }
+
+    return usm.serializeHost(this._url.host);
+  }
+
+  set hostname(v) {
+    if (this._url.cannotBeABaseURL) {
+      return;
+    }
+
+    usm.basicURLParse(v, { url: this._url, stateOverride: "hostname" });
+  }
+
+  get port() {
+    if (this._url.port === null) {
+      return "";
+    }
+
+    return usm.serializeInteger(this._url.port);
+  }
+
+  set port(v) {
+    if (usm.cannotHaveAUsernamePasswordPort(this._url)) {
+      return;
+    }
+
+    if (v === "") {
+      this._url.port = null;
+    } else {
+      usm.basicURLParse(v, { url: this._url, stateOverride: "port" });
+    }
+  }
+
+  get pathname() {
+    if (this._url.cannotBeABaseURL) {
+      return this._url.path[0];
+    }
+
+    if (this._url.path.length === 0) {
+      return "";
+    }
+
+    return "/" + this._url.path.join("/");
+  }
+
+  set pathname(v) {
+    if (this._url.cannotBeABaseURL) {
+      return;
+    }
+
+    this._url.path = [];
+    usm.basicURLParse(v, { url: this._url, stateOverride: "path start" });
+  }
+
+  get search() {
+    if (this._url.query === null || this._url.query === "") {
+      return "";
+    }
+
+    return "?" + this._url.query;
+  }
+
+  set search(v) {
+    // TODO: query stuff
+
+    const url = this._url;
+
+    if (v === "") {
+      url.query = null;
+      return;
+    }
+
+    const input = v[0] === "?" ? v.substring(1) : v;
+    url.query = "";
+    usm.basicURLParse(input, { url, stateOverride: "query" });
+  }
+
+  get hash() {
+    if (this._url.fragment === null || this._url.fragment === "") {
+      return "";
+    }
+
+    return "#" + this._url.fragment;
+  }
+
+  set hash(v) {
+    if (v === "") {
+      this._url.fragment = null;
+      return;
+    }
+
+    const input = v[0] === "#" ? v.substring(1) : v;
+    this._url.fragment = "";
+    usm.basicURLParse(input, { url: this._url, stateOverride: "fragment" });
+  }
+
+  toJSON() {
+    return this.href;
+  }
+};
diff --git a/node_modules/whatwg-url/lib/URL.js b/node_modules/whatwg-url/lib/URL.js
new file mode 100644
index 0000000..78c7207
--- /dev/null
+++ b/node_modules/whatwg-url/lib/URL.js
@@ -0,0 +1,196 @@
+"use strict";
+
+const conversions = require("webidl-conversions");
+const utils = require("./utils.js");
+const Impl = require(".//URL-impl.js");
+
+const impl = utils.implSymbol;
+
+function URL(url) {
+  if (!this || this[impl] || !(this instanceof URL)) {
+    throw new TypeError("Failed to construct 'URL': Please use the 'new' operator, this DOM object constructor cannot be called as a function.");
+  }
+  if (arguments.length < 1) {
+    throw new TypeError("Failed to construct 'URL': 1 argument required, but only " + arguments.length + " present.");
+  }
+  const args = [];
+  for (let i = 0; i < arguments.length && i < 2; ++i) {
+    args[i] = arguments[i];
+  }
+  args[0] = conversions["USVString"](args[0]);
+  if (args[1] !== undefined) {
+  args[1] = conversions["USVString"](args[1]);
+  }
+
+  module.exports.setup(this, args);
+}
+
+URL.prototype.toJSON = function toJSON() {
+  if (!this || !module.exports.is(this)) {
+    throw new TypeError("Illegal invocation");
+  }
+  const args = [];
+  for (let i = 0; i < arguments.length && i < 0; ++i) {
+    args[i] = arguments[i];
+  }
+  return this[impl].toJSON.apply(this[impl], args);
+};
+Object.defineProperty(URL.prototype, "href", {
+  get() {
+    return this[impl].href;
+  },
+  set(V) {
+    V = conversions["USVString"](V);
+    this[impl].href = V;
+  },
+  enumerable: true,
+  configurable: true
+});
+
+URL.prototype.toString = function () {
+  if (!this || !module.exports.is(this)) {
+    throw new TypeError("Illegal invocation");
+  }
+  return this.href;
+};
+
+Object.defineProperty(URL.prototype, "origin", {
+  get() {
+    return this[impl].origin;
+  },
+  enumerable: true,
+  configurable: true
+});
+
+Object.defineProperty(URL.prototype, "protocol", {
+  get() {
+    return this[impl].protocol;
+  },
+  set(V) {
+    V = conversions["USVString"](V);
+    this[impl].protocol = V;
+  },
+  enumerable: true,
+  configurable: true
+});
+
+Object.defineProperty(URL.prototype, "username", {
+  get() {
+    return this[impl].username;
+  },
+  set(V) {
+    V = conversions["USVString"](V);
+    this[impl].username = V;
+  },
+  enumerable: true,
+  configurable: true
+});
+
+Object.defineProperty(URL.prototype, "password", {
+  get() {
+    return this[impl].password;
+  },
+  set(V) {
+    V = conversions["USVString"](V);
+    this[impl].password = V;
+  },
+  enumerable: true,
+  configurable: true
+});
+
+Object.defineProperty(URL.prototype, "host", {
+  get() {
+    return this[impl].host;
+  },
+  set(V) {
+    V = conversions["USVString"](V);
+    this[impl].host = V;
+  },
+  enumerable: true,
+  configurable: true
+});
+
+Object.defineProperty(URL.prototype, "hostname", {
+  get() {
+    return this[impl].hostname;
+  },
+  set(V) {
+    V = conversions["USVString"](V);
+    this[impl].hostname = V;
+  },
+  enumerable: true,
+  configurable: true
+});
+
+Object.defineProperty(URL.prototype, "port", {
+  get() {
+    return this[impl].port;
+  },
+  set(V) {
+    V = conversions["USVString"](V);
+    this[impl].port = V;
+  },
+  enumerable: true,
+  configurable: true
+});
+
+Object.defineProperty(URL.prototype, "pathname", {
+  get() {
+    return this[impl].pathname;
+  },
+  set(V) {
+    V = conversions["USVString"](V);
+    this[impl].pathname = V;
+  },
+  enumerable: true,
+  configurable: true
+});
+
+Object.defineProperty(URL.prototype, "search", {
+  get() {
+    return this[impl].search;
+  },
+  set(V) {
+    V = conversions["USVString"](V);
+    this[impl].search = V;
+  },
+  enumerable: true,
+  configurable: true
+});
+
+Object.defineProperty(URL.prototype, "hash", {
+  get() {
+    return this[impl].hash;
+  },
+  set(V) {
+    V = conversions["USVString"](V);
+    this[impl].hash = V;
+  },
+  enumerable: true,
+  configurable: true
+});
+
+
+module.exports = {
+  is(obj) {
+    return !!obj && obj[impl] instanceof Impl.implementation;
+  },
+  create(constructorArgs, privateData) {
+    let obj = Object.create(URL.prototype);
+    this.setup(obj, constructorArgs, privateData);
+    return obj;
+  },
+  setup(obj, constructorArgs, privateData) {
+    if (!privateData) privateData = {};
+    privateData.wrapper = obj;
+
+    obj[impl] = new Impl.implementation(constructorArgs, privateData);
+    obj[impl][utils.wrapperSymbol] = obj;
+  },
+  interface: URL,
+  expose: {
+    Window: { URL: URL },
+    Worker: { URL: URL }
+  }
+};
+
diff --git a/node_modules/whatwg-url/lib/public-api.js b/node_modules/whatwg-url/lib/public-api.js
new file mode 100644
index 0000000..932dcad
--- /dev/null
+++ b/node_modules/whatwg-url/lib/public-api.js
@@ -0,0 +1,11 @@
+"use strict";
+
+exports.URL = require("./URL").interface;
+exports.serializeURL = require("./url-state-machine").serializeURL;
+exports.serializeURLOrigin = require("./url-state-machine").serializeURLOrigin;
+exports.basicURLParse = require("./url-state-machine").basicURLParse;
+exports.setTheUsername = require("./url-state-machine").setTheUsername;
+exports.setThePassword = require("./url-state-machine").setThePassword;
+exports.serializeHost = require("./url-state-machine").serializeHost;
+exports.serializeInteger = require("./url-state-machine").serializeInteger;
+exports.parseURL = require("./url-state-machine").parseURL;
diff --git a/node_modules/whatwg-url/lib/url-state-machine.js b/node_modules/whatwg-url/lib/url-state-machine.js
new file mode 100644
index 0000000..27d977a
--- /dev/null
+++ b/node_modules/whatwg-url/lib/url-state-machine.js
@@ -0,0 +1,1297 @@
+"use strict";
+const punycode = require("punycode");
+const tr46 = require("tr46");
+
+const specialSchemes = {
+  ftp: 21,
+  file: null,
+  gopher: 70,
+  http: 80,
+  https: 443,
+  ws: 80,
+  wss: 443
+};
+
+const failure = Symbol("failure");
+
+function countSymbols(str) {
+  return punycode.ucs2.decode(str).length;
+}
+
+function at(input, idx) {
+  const c = input[idx];
+  return isNaN(c) ? undefined : String.fromCodePoint(c);
+}
+
+function isASCIIDigit(c) {
+  return c >= 0x30 && c <= 0x39;
+}
+
+function isASCIIAlpha(c) {
+  return (c >= 0x41 && c <= 0x5A) || (c >= 0x61 && c <= 0x7A);
+}
+
+function isASCIIAlphanumeric(c) {
+  return isASCIIAlpha(c) || isASCIIDigit(c);
+}
+
+function isASCIIHex(c) {
+  return isASCIIDigit(c) || (c >= 0x41 && c <= 0x46) || (c >= 0x61 && c <= 0x66);
+}
+
+function isSingleDot(buffer) {
+  return buffer === "." || buffer.toLowerCase() === "%2e";
+}
+
+function isDoubleDot(buffer) {
+  buffer = buffer.toLowerCase();
+  return buffer === ".." || buffer === "%2e." || buffer === ".%2e" || buffer === "%2e%2e";
+}
+
+function isWindowsDriveLetterCodePoints(cp1, cp2) {
+  return isASCIIAlpha(cp1) && (cp2 === 58 || cp2 === 124);
+}
+
+function isWindowsDriveLetterString(string) {
+  return string.length === 2 && isASCIIAlpha(string.codePointAt(0)) && (string[1] === ":" || string[1] === "|");
+}
+
+function isNormalizedWindowsDriveLetterString(string) {
+  return string.length === 2 && isASCIIAlpha(string.codePointAt(0)) && string[1] === ":";
+}
+
+function containsForbiddenHostCodePoint(string) {
+  return string.search(/\u0000|\u0009|\u000A|\u000D|\u0020|#|%|\/|:|\?|@|\[|\\|\]/) !== -1;
+}
+
+function containsForbiddenHostCodePointExcludingPercent(string) {
+  return string.search(/\u0000|\u0009|\u000A|\u000D|\u0020|#|\/|:|\?|@|\[|\\|\]/) !== -1;
+}
+
+function isSpecialScheme(scheme) {
+  return specialSchemes[scheme] !== undefined;
+}
+
+function isSpecial(url) {
+  return isSpecialScheme(url.scheme);
+}
+
+function defaultPort(scheme) {
+  return specialSchemes[scheme];
+}
+
+function percentEncode(c) {
+  let hex = c.toString(16).toUpperCase();
+  if (hex.length === 1) {
+    hex = "0" + hex;
+  }
+
+  return "%" + hex;
+}
+
+function utf8PercentEncode(c) {
+  const buf = new Buffer(c);
+
+  let str = "";
+
+  for (let i = 0; i < buf.length; ++i) {
+    str += percentEncode(buf[i]);
+  }
+
+  return str;
+}
+
+function utf8PercentDecode(str) {
+  const input = new Buffer(str);
+  const output = [];
+  for (let i = 0; i < input.length; ++i) {
+    if (input[i] !== 37) {
+      output.push(input[i]);
+    } else if (input[i] === 37 && isASCIIHex(input[i + 1]) && isASCIIHex(input[i + 2])) {
+      output.push(parseInt(input.slice(i + 1, i + 3).toString(), 16));
+      i += 2;
+    } else {
+      output.push(input[i]);
+    }
+  }
+  return new Buffer(output).toString();
+}
+
+function isC0ControlPercentEncode(c) {
+  return c <= 0x1F || c > 0x7E;
+}
+
+const extraPathPercentEncodeSet = new Set([32, 34, 35, 60, 62, 63, 96, 123, 125]);
+function isPathPercentEncode(c) {
+  return isC0ControlPercentEncode(c) || extraPathPercentEncodeSet.has(c);
+}
+
+const extraUserinfoPercentEncodeSet =
+  new Set([47, 58, 59, 61, 64, 91, 92, 93, 94, 124]);
+function isUserinfoPercentEncode(c) {
+  return isPathPercentEncode(c) || extraUserinfoPercentEncodeSet.has(c);
+}
+
+function percentEncodeChar(c, encodeSetPredicate) {
+  const cStr = String.fromCodePoint(c);
+
+  if (encodeSetPredicate(c)) {
+    return utf8PercentEncode(cStr);
+  }
+
+  return cStr;
+}
+
+function parseIPv4Number(input) {
+  let R = 10;
+
+  if (input.length >= 2 && input.charAt(0) === "0" && input.charAt(1).toLowerCase() === "x") {
+    input = input.substring(2);
+    R = 16;
+  } else if (input.length >= 2 && input.charAt(0) === "0") {
+    input = input.substring(1);
+    R = 8;
+  }
+
+  if (input === "") {
+    return 0;
+  }
+
+  const regex = R === 10 ? /[^0-9]/ : (R === 16 ? /[^0-9A-Fa-f]/ : /[^0-7]/);
+  if (regex.test(input)) {
+    return failure;
+  }
+
+  return parseInt(input, R);
+}
+
+function parseIPv4(input) {
+  const parts = input.split(".");
+  if (parts[parts.length - 1] === "") {
+    if (parts.length > 1) {
+      parts.pop();
+    }
+  }
+
+  if (parts.length > 4) {
+    return input;
+  }
+
+  const numbers = [];
+  for (const part of parts) {
+    if (part === "") {
+      return input;
+    }
+    const n = parseIPv4Number(part);
+    if (n === failure) {
+      return input;
+    }
+
+    numbers.push(n);
+  }
+
+  for (let i = 0; i < numbers.length - 1; ++i) {
+    if (numbers[i] > 255) {
+      return failure;
+    }
+  }
+  if (numbers[numbers.length - 1] >= Math.pow(256, 5 - numbers.length)) {
+    return failure;
+  }
+
+  let ipv4 = numbers.pop();
+  let counter = 0;
+
+  for (const n of numbers) {
+    ipv4 += n * Math.pow(256, 3 - counter);
+    ++counter;
+  }
+
+  return ipv4;
+}
+
+function serializeIPv4(address) {
+  let output = "";
+  let n = address;
+
+  for (let i = 1; i <= 4; ++i) {
+    output = String(n % 256) + output;
+    if (i !== 4) {
+      output = "." + output;
+    }
+    n = Math.floor(n / 256);
+  }
+
+  return output;
+}
+
+function parseIPv6(input) {
+  const address = [0, 0, 0, 0, 0, 0, 0, 0];
+  let pieceIndex = 0;
+  let compress = null;
+  let pointer = 0;
+
+  input = punycode.ucs2.decode(input);
+
+  if (input[pointer] === 58) {
+    if (input[pointer + 1] !== 58) {
+      return failure;
+    }
+
+    pointer += 2;
+    ++pieceIndex;
+    compress = pieceIndex;
+  }
+
+  while (pointer < input.length) {
+    if (pieceIndex === 8) {
+      return failure;
+    }
+
+    if (input[pointer] === 58) {
+      if (compress !== null) {
+        return failure;
+      }
+      ++pointer;
+      ++pieceIndex;
+      compress = pieceIndex;
+      continue;
+    }
+
+    let value = 0;
+    let length = 0;
+
+    while (length < 4 && isASCIIHex(input[pointer])) {
+      value = value * 0x10 + parseInt(at(input, pointer), 16);
+      ++pointer;
+      ++length;
+    }
+
+    if (input[pointer] === 46) {
+      if (length === 0) {
+        return failure;
+      }
+
+      pointer -= length;
+
+      if (pieceIndex > 6) {
+        return failure;
+      }
+
+      let numbersSeen = 0;
+
+      while (input[pointer] !== undefined) {
+        let ipv4Piece = null;
+
+        if (numbersSeen > 0) {
+          if (input[pointer] === 46 && numbersSeen < 4) {
+            ++pointer;
+          } else {
+            return failure;
+          }
+        }
+
+        if (!isASCIIDigit(input[pointer])) {
+          return failure;
+        }
+
+        while (isASCIIDigit(input[pointer])) {
+          const number = parseInt(at(input, pointer));
+          if (ipv4Piece === null) {
+            ipv4Piece = number;
+          } else if (ipv4Piece === 0) {
+            return failure;
+          } else {
+            ipv4Piece = ipv4Piece * 10 + number;
+          }
+          if (ipv4Piece > 255) {
+            return failure;
+          }
+          ++pointer;
+        }
+
+        address[pieceIndex] = address[pieceIndex] * 0x100 + ipv4Piece;
+
+        ++numbersSeen;
+
+        if (numbersSeen === 2 || numbersSeen === 4) {
+          ++pieceIndex;
+        }
+      }
+
+      if (numbersSeen !== 4) {
+        return failure;
+      }
+
+      break;
+    } else if (input[pointer] === 58) {
+      ++pointer;
+      if (input[pointer] === undefined) {
+        return failure;
+      }
+    } else if (input[pointer] !== undefined) {
+      return failure;
+    }
+
+    address[pieceIndex] = value;
+    ++pieceIndex;
+  }
+
+  if (compress !== null) {
+    let swaps = pieceIndex - compress;
+    pieceIndex = 7;
+    while (pieceIndex !== 0 && swaps > 0) {
+      const temp = address[compress + swaps - 1];
+      address[compress + swaps - 1] = address[pieceIndex];
+      address[pieceIndex] = temp;
+      --pieceIndex;
+      --swaps;
+    }
+  } else if (compress === null && pieceIndex !== 8) {
+    return failure;
+  }
+
+  return address;
+}
+
+function serializeIPv6(address) {
+  let output = "";
+  const seqResult = findLongestZeroSequence(address);
+  const compress = seqResult.idx;
+  let ignore0 = false;
+
+  for (let pieceIndex = 0; pieceIndex <= 7; ++pieceIndex) {
+    if (ignore0 && address[pieceIndex] === 0) {
+      continue;
+    } else if (ignore0) {
+      ignore0 = false;
+    }
+
+    if (compress === pieceIndex) {
+      const separator = pieceIndex === 0 ? "::" : ":";
+      output += separator;
+      ignore0 = true;
+      continue;
+    }
+
+    output += address[pieceIndex].toString(16);
+
+    if (pieceIndex !== 7) {
+      output += ":";
+    }
+  }
+
+  return output;
+}
+
+function parseHost(input, isSpecialArg) {
+  if (input[0] === "[") {
+    if (input[input.length - 1] !== "]") {
+      return failure;
+    }
+
+    return parseIPv6(input.substring(1, input.length - 1));
+  }
+
+  if (!isSpecialArg) {
+    return parseOpaqueHost(input);
+  }
+
+  const domain = utf8PercentDecode(input);
+  const asciiDomain = tr46.toASCII(domain, false, tr46.PROCESSING_OPTIONS.NONTRANSITIONAL, false);
+  if (asciiDomain === null) {
+    return failure;
+  }
+
+  if (containsForbiddenHostCodePoint(asciiDomain)) {
+    return failure;
+  }
+
+  const ipv4Host = parseIPv4(asciiDomain);
+  if (typeof ipv4Host === "number" || ipv4Host === failure) {
+    return ipv4Host;
+  }
+
+  return asciiDomain;
+}
+
+function parseOpaqueHost(input) {
+  if (containsForbiddenHostCodePointExcludingPercent(input)) {
+    return failure;
+  }
+
+  let output = "";
+  const decoded = punycode.ucs2.decode(input);
+  for (let i = 0; i < decoded.length; ++i) {
+    output += percentEncodeChar(decoded[i], isC0ControlPercentEncode);
+  }
+  return output;
+}
+
+function findLongestZeroSequence(arr) {
+  let maxIdx = null;
+  let maxLen = 1; // only find elements > 1
+  let currStart = null;
+  let currLen = 0;
+
+  for (let i = 0; i < arr.length; ++i) {
+    if (arr[i] !== 0) {
+      if (currLen > maxLen) {
+        maxIdx = currStart;
+        maxLen = currLen;
+      }
+
+      currStart = null;
+      currLen = 0;
+    } else {
+      if (currStart === null) {
+        currStart = i;
+      }
+      ++currLen;
+    }
+  }
+
+  // if trailing zeros
+  if (currLen > maxLen) {
+    maxIdx = currStart;
+    maxLen = currLen;
+  }
+
+  return {
+    idx: maxIdx,
+    len: maxLen
+  };
+}
+
+function serializeHost(host) {
+  if (typeof host === "number") {
+    return serializeIPv4(host);
+  }
+
+  // IPv6 serializer
+  if (host instanceof Array) {
+    return "[" + serializeIPv6(host) + "]";
+  }
+
+  return host;
+}
+
+function trimControlChars(url) {
+  return url.replace(/^[\u0000-\u001F\u0020]+|[\u0000-\u001F\u0020]+$/g, "");
+}
+
+function trimTabAndNewline(url) {
+  return url.replace(/\u0009|\u000A|\u000D/g, "");
+}
+
+function shortenPath(url) {
+  const path = url.path;
+  if (path.length === 0) {
+    return;
+  }
+  if (url.scheme === "file" && path.length === 1 && isNormalizedWindowsDriveLetter(path[0])) {
+    return;
+  }
+
+  path.pop();
+}
+
+function includesCredentials(url) {
+  return url.username !== "" || url.password !== "";
+}
+
+function cannotHaveAUsernamePasswordPort(url) {
+  return url.host === null || url.host === "" || url.cannotBeABaseURL || url.scheme === "file";
+}
+
+function isNormalizedWindowsDriveLetter(string) {
+  return /^[A-Za-z]:$/.test(string);
+}
+
+function URLStateMachine(input, base, encodingOverride, url, stateOverride) {
+  this.pointer = 0;
+  this.input = input;
+  this.base = base || null;
+  this.encodingOverride = encodingOverride || "utf-8";
+  this.stateOverride = stateOverride;
+  this.url = url;
+  this.failure = false;
+  this.parseError = false;
+
+  if (!this.url) {
+    this.url = {
+      scheme: "",
+      username: "",
+      password: "",
+      host: null,
+      port: null,
+      path: [],
+      query: null,
+      fragment: null,
+
+      cannotBeABaseURL: false
+    };
+
+    const res = trimControlChars(this.input);
+    if (res !== this.input) {
+      this.parseError = true;
+    }
+    this.input = res;
+  }
+
+  const res = trimTabAndNewline(this.input);
+  if (res !== this.input) {
+    this.parseError = true;
+  }
+  this.input = res;
+
+  this.state = stateOverride || "scheme start";
+
+  this.buffer = "";
+  this.atFlag = false;
+  this.arrFlag = false;
+  this.passwordTokenSeenFlag = false;
+
+  this.input = punycode.ucs2.decode(this.input);
+
+  for (; this.pointer <= this.input.length; ++this.pointer) {
+    const c = this.input[this.pointer];
+    const cStr = isNaN(c) ? undefined : String.fromCodePoint(c);
+
+    // exec state machine
+    const ret = this["parse " + this.state](c, cStr);
+    if (!ret) {
+      break; // terminate algorithm
+    } else if (ret === failure) {
+      this.failure = true;
+      break;
+    }
+  }
+}
+
+URLStateMachine.prototype["parse scheme start"] = function parseSchemeStart(c, cStr) {
+  if (isASCIIAlpha(c)) {
+    this.buffer += cStr.toLowerCase();
+    this.state = "scheme";
+  } else if (!this.stateOverride) {
+    this.state = "no scheme";
+    --this.pointer;
+  } else {
+    this.parseError = true;
+    return failure;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse scheme"] = function parseScheme(c, cStr) {
+  if (isASCIIAlphanumeric(c) || c === 43 || c === 45 || c === 46) {
+    this.buffer += cStr.toLowerCase();
+  } else if (c === 58) {
+    if (this.stateOverride) {
+      if (isSpecial(this.url) && !isSpecialScheme(this.buffer)) {
+        return false;
+      }
+
+      if (!isSpecial(this.url) && isSpecialScheme(this.buffer)) {
+        return false;
+      }
+
+      if ((includesCredentials(this.url) || this.url.port !== null) && this.buffer === "file") {
+        return false;
+      }
+
+      if (this.url.scheme === "file" && (this.url.host === "" || this.url.host === null)) {
+        return false;
+      }
+    }
+    this.url.scheme = this.buffer;
+    this.buffer = "";
+    if (this.stateOverride) {
+      return false;
+    }
+    if (this.url.scheme === "file") {
+      if (this.input[this.pointer + 1] !== 47 || this.input[this.pointer + 2] !== 47) {
+        this.parseError = true;
+      }
+      this.state = "file";
+    } else if (isSpecial(this.url) && this.base !== null && this.base.scheme === this.url.scheme) {
+      this.state = "special relative or authority";
+    } else if (isSpecial(this.url)) {
+      this.state = "special authority slashes";
+    } else if (this.input[this.pointer + 1] === 47) {
+      this.state = "path or authority";
+      ++this.pointer;
+    } else {
+      this.url.cannotBeABaseURL = true;
+      this.url.path.push("");
+      this.state = "cannot-be-a-base-URL path";
+    }
+  } else if (!this.stateOverride) {
+    this.buffer = "";
+    this.state = "no scheme";
+    this.pointer = -1;
+  } else {
+    this.parseError = true;
+    return failure;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse no scheme"] = function parseNoScheme(c) {
+  if (this.base === null || (this.base.cannotBeABaseURL && c !== 35)) {
+    return failure;
+  } else if (this.base.cannotBeABaseURL && c === 35) {
+    this.url.scheme = this.base.scheme;
+    this.url.path = this.base.path.slice();
+    this.url.query = this.base.query;
+    this.url.fragment = "";
+    this.url.cannotBeABaseURL = true;
+    this.state = "fragment";
+  } else if (this.base.scheme === "file") {
+    this.state = "file";
+    --this.pointer;
+  } else {
+    this.state = "relative";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse special relative or authority"] = function parseSpecialRelativeOrAuthority(c) {
+  if (c === 47 && this.input[this.pointer + 1] === 47) {
+    this.state = "special authority ignore slashes";
+    ++this.pointer;
+  } else {
+    this.parseError = true;
+    this.state = "relative";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse path or authority"] = function parsePathOrAuthority(c) {
+  if (c === 47) {
+    this.state = "authority";
+  } else {
+    this.state = "path";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse relative"] = function parseRelative(c) {
+  this.url.scheme = this.base.scheme;
+  if (isNaN(c)) {
+    this.url.username = this.base.username;
+    this.url.password = this.base.password;
+    this.url.host = this.base.host;
+    this.url.port = this.base.port;
+    this.url.path = this.base.path.slice();
+    this.url.query = this.base.query;
+  } else if (c === 47) {
+    this.state = "relative slash";
+  } else if (c === 63) {
+    this.url.username = this.base.username;
+    this.url.password = this.base.password;
+    this.url.host = this.base.host;
+    this.url.port = this.base.port;
+    this.url.path = this.base.path.slice();
+    this.url.query = "";
+    this.state = "query";
+  } else if (c === 35) {
+    this.url.username = this.base.username;
+    this.url.password = this.base.password;
+    this.url.host = this.base.host;
+    this.url.port = this.base.port;
+    this.url.path = this.base.path.slice();
+    this.url.query = this.base.query;
+    this.url.fragment = "";
+    this.state = "fragment";
+  } else if (isSpecial(this.url) && c === 92) {
+    this.parseError = true;
+    this.state = "relative slash";
+  } else {
+    this.url.username = this.base.username;
+    this.url.password = this.base.password;
+    this.url.host = this.base.host;
+    this.url.port = this.base.port;
+    this.url.path = this.base.path.slice(0, this.base.path.length - 1);
+
+    this.state = "path";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse relative slash"] = function parseRelativeSlash(c) {
+  if (isSpecial(this.url) && (c === 47 || c === 92)) {
+    if (c === 92) {
+      this.parseError = true;
+    }
+    this.state = "special authority ignore slashes";
+  } else if (c === 47) {
+    this.state = "authority";
+  } else {
+    this.url.username = this.base.username;
+    this.url.password = this.base.password;
+    this.url.host = this.base.host;
+    this.url.port = this.base.port;
+    this.state = "path";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse special authority slashes"] = function parseSpecialAuthoritySlashes(c) {
+  if (c === 47 && this.input[this.pointer + 1] === 47) {
+    this.state = "special authority ignore slashes";
+    ++this.pointer;
+  } else {
+    this.parseError = true;
+    this.state = "special authority ignore slashes";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse special authority ignore slashes"] = function parseSpecialAuthorityIgnoreSlashes(c) {
+  if (c !== 47 && c !== 92) {
+    this.state = "authority";
+    --this.pointer;
+  } else {
+    this.parseError = true;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse authority"] = function parseAuthority(c, cStr) {
+  if (c === 64) {
+    this.parseError = true;
+    if (this.atFlag) {
+      this.buffer = "%40" + this.buffer;
+    }
+    this.atFlag = true;
+
+    // careful, this is based on buffer and has its own pointer (this.pointer != pointer) and inner chars
+    const len = countSymbols(this.buffer);
+    for (let pointer = 0; pointer < len; ++pointer) {
+      const codePoint = this.buffer.codePointAt(pointer);
+
+      if (codePoint === 58 && !this.passwordTokenSeenFlag) {
+        this.passwordTokenSeenFlag = true;
+        continue;
+      }
+      const encodedCodePoints = percentEncodeChar(codePoint, isUserinfoPercentEncode);
+      if (this.passwordTokenSeenFlag) {
+        this.url.password += encodedCodePoints;
+      } else {
+        this.url.username += encodedCodePoints;
+      }
+    }
+    this.buffer = "";
+  } else if (isNaN(c) || c === 47 || c === 63 || c === 35 ||
+             (isSpecial(this.url) && c === 92)) {
+    if (this.atFlag && this.buffer === "") {
+      this.parseError = true;
+      return failure;
+    }
+    this.pointer -= countSymbols(this.buffer) + 1;
+    this.buffer = "";
+    this.state = "host";
+  } else {
+    this.buffer += cStr;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse hostname"] =
+URLStateMachine.prototype["parse host"] = function parseHostName(c, cStr) {
+  if (this.stateOverride && this.url.scheme === "file") {
+    --this.pointer;
+    this.state = "file host";
+  } else if (c === 58 && !this.arrFlag) {
+    if (this.buffer === "") {
+      this.parseError = true;
+      return failure;
+    }
+
+    const host = parseHost(this.buffer, isSpecial(this.url));
+    if (host === failure) {
+      return failure;
+    }
+
+    this.url.host = host;
+    this.buffer = "";
+    this.state = "port";
+    if (this.stateOverride === "hostname") {
+      return false;
+    }
+  } else if (isNaN(c) || c === 47 || c === 63 || c === 35 ||
+             (isSpecial(this.url) && c === 92)) {
+    --this.pointer;
+    if (isSpecial(this.url) && this.buffer === "") {
+      this.parseError = true;
+      return failure;
+    } else if (this.stateOverride && this.buffer === "" &&
+               (includesCredentials(this.url) || this.url.port !== null)) {
+      this.parseError = true;
+      return false;
+    }
+
+    const host = parseHost(this.buffer, isSpecial(this.url));
+    if (host === failure) {
+      return failure;
+    }
+
+    this.url.host = host;
+    this.buffer = "";
+    this.state = "path start";
+    if (this.stateOverride) {
+      return false;
+    }
+  } else {
+    if (c === 91) {
+      this.arrFlag = true;
+    } else if (c === 93) {
+      this.arrFlag = false;
+    }
+    this.buffer += cStr;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse port"] = function parsePort(c, cStr) {
+  if (isASCIIDigit(c)) {
+    this.buffer += cStr;
+  } else if (isNaN(c) || c === 47 || c === 63 || c === 35 ||
+             (isSpecial(this.url) && c === 92) ||
+             this.stateOverride) {
+    if (this.buffer !== "") {
+      const port = parseInt(this.buffer);
+      if (port > Math.pow(2, 16) - 1) {
+        this.parseError = true;
+        return failure;
+      }
+      this.url.port = port === defaultPort(this.url.scheme) ? null : port;
+      this.buffer = "";
+    }
+    if (this.stateOverride) {
+      return false;
+    }
+    this.state = "path start";
+    --this.pointer;
+  } else {
+    this.parseError = true;
+    return failure;
+  }
+
+  return true;
+};
+
+const fileOtherwiseCodePoints = new Set([47, 92, 63, 35]);
+
+URLStateMachine.prototype["parse file"] = function parseFile(c) {
+  this.url.scheme = "file";
+
+  if (c === 47 || c === 92) {
+    if (c === 92) {
+      this.parseError = true;
+    }
+    this.state = "file slash";
+  } else if (this.base !== null && this.base.scheme === "file") {
+    if (isNaN(c)) {
+      this.url.host = this.base.host;
+      this.url.path = this.base.path.slice();
+      this.url.query = this.base.query;
+    } else if (c === 63) {
+      this.url.host = this.base.host;
+      this.url.path = this.base.path.slice();
+      this.url.query = "";
+      this.state = "query";
+    } else if (c === 35) {
+      this.url.host = this.base.host;
+      this.url.path = this.base.path.slice();
+      this.url.query = this.base.query;
+      this.url.fragment = "";
+      this.state = "fragment";
+    } else {
+      if (this.input.length - this.pointer - 1 === 0 || // remaining consists of 0 code points
+          !isWindowsDriveLetterCodePoints(c, this.input[this.pointer + 1]) ||
+          (this.input.length - this.pointer - 1 >= 2 && // remaining has at least 2 code points
+           !fileOtherwiseCodePoints.has(this.input[this.pointer + 2]))) {
+        this.url.host = this.base.host;
+        this.url.path = this.base.path.slice();
+        shortenPath(this.url);
+      } else {
+        this.parseError = true;
+      }
+
+      this.state = "path";
+      --this.pointer;
+    }
+  } else {
+    this.state = "path";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse file slash"] = function parseFileSlash(c) {
+  if (c === 47 || c === 92) {
+    if (c === 92) {
+      this.parseError = true;
+    }
+    this.state = "file host";
+  } else {
+    if (this.base !== null && this.base.scheme === "file") {
+      if (isNormalizedWindowsDriveLetterString(this.base.path[0])) {
+        this.url.path.push(this.base.path[0]);
+      } else {
+        this.url.host = this.base.host;
+      }
+    }
+    this.state = "path";
+    --this.pointer;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse file host"] = function parseFileHost(c, cStr) {
+  if (isNaN(c) || c === 47 || c === 92 || c === 63 || c === 35) {
+    --this.pointer;
+    if (!this.stateOverride && isWindowsDriveLetterString(this.buffer)) {
+      this.parseError = true;
+      this.state = "path";
+    } else if (this.buffer === "") {
+      this.url.host = "";
+      if (this.stateOverride) {
+        return false;
+      }
+      this.state = "path start";
+    } else {
+      let host = parseHost(this.buffer, isSpecial(this.url));
+      if (host === failure) {
+        return failure;
+      }
+      if (host === "localhost") {
+        host = "";
+      }
+      this.url.host = host;
+
+      if (this.stateOverride) {
+        return false;
+      }
+
+      this.buffer = "";
+      this.state = "path start";
+    }
+  } else {
+    this.buffer += cStr;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse path start"] = function parsePathStart(c) {
+  if (isSpecial(this.url)) {
+    if (c === 92) {
+      this.parseError = true;
+    }
+    this.state = "path";
+
+    if (c !== 47 && c !== 92) {
+      --this.pointer;
+    }
+  } else if (!this.stateOverride && c === 63) {
+    this.url.query = "";
+    this.state = "query";
+  } else if (!this.stateOverride && c === 35) {
+    this.url.fragment = "";
+    this.state = "fragment";
+  } else if (c !== undefined) {
+    this.state = "path";
+    if (c !== 47) {
+      --this.pointer;
+    }
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse path"] = function parsePath(c) {
+  if (isNaN(c) || c === 47 || (isSpecial(this.url) && c === 92) ||
+      (!this.stateOverride && (c === 63 || c === 35))) {
+    if (isSpecial(this.url) && c === 92) {
+      this.parseError = true;
+    }
+
+    if (isDoubleDot(this.buffer)) {
+      shortenPath(this.url);
+      if (c !== 47 && !(isSpecial(this.url) && c === 92)) {
+        this.url.path.push("");
+      }
+    } else if (isSingleDot(this.buffer) && c !== 47 &&
+               !(isSpecial(this.url) && c === 92)) {
+      this.url.path.push("");
+    } else if (!isSingleDot(this.buffer)) {
+      if (this.url.scheme === "file" && this.url.path.length === 0 && isWindowsDriveLetterString(this.buffer)) {
+        if (this.url.host !== "" && this.url.host !== null) {
+          this.parseError = true;
+          this.url.host = "";
+        }
+        this.buffer = this.buffer[0] + ":";
+      }
+      this.url.path.push(this.buffer);
+    }
+    this.buffer = "";
+    if (this.url.scheme === "file" && (c === undefined || c === 63 || c === 35)) {
+      while (this.url.path.length > 1 && this.url.path[0] === "") {
+        this.parseError = true;
+        this.url.path.shift();
+      }
+    }
+    if (c === 63) {
+      this.url.query = "";
+      this.state = "query";
+    }
+    if (c === 35) {
+      this.url.fragment = "";
+      this.state = "fragment";
+    }
+  } else {
+    // TODO: If c is not a URL code point and not "%", parse error.
+
+    if (c === 37 &&
+      (!isASCIIHex(this.input[this.pointer + 1]) ||
+        !isASCIIHex(this.input[this.pointer + 2]))) {
+      this.parseError = true;
+    }
+
+    this.buffer += percentEncodeChar(c, isPathPercentEncode);
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse cannot-be-a-base-URL path"] = function parseCannotBeABaseURLPath(c) {
+  if (c === 63) {
+    this.url.query = "";
+    this.state = "query";
+  } else if (c === 35) {
+    this.url.fragment = "";
+    this.state = "fragment";
+  } else {
+    // TODO: Add: not a URL code point
+    if (!isNaN(c) && c !== 37) {
+      this.parseError = true;
+    }
+
+    if (c === 37 &&
+        (!isASCIIHex(this.input[this.pointer + 1]) ||
+         !isASCIIHex(this.input[this.pointer + 2]))) {
+      this.parseError = true;
+    }
+
+    if (!isNaN(c)) {
+      this.url.path[0] = this.url.path[0] + percentEncodeChar(c, isC0ControlPercentEncode);
+    }
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse query"] = function parseQuery(c, cStr) {
+  if (isNaN(c) || (!this.stateOverride && c === 35)) {
+    if (!isSpecial(this.url) || this.url.scheme === "ws" || this.url.scheme === "wss") {
+      this.encodingOverride = "utf-8";
+    }
+
+    const buffer = new Buffer(this.buffer); // TODO: Use encoding override instead
+    for (let i = 0; i < buffer.length; ++i) {
+      if (buffer[i] < 0x21 || buffer[i] > 0x7E || buffer[i] === 0x22 || buffer[i] === 0x23 ||
+          buffer[i] === 0x3C || buffer[i] === 0x3E) {
+        this.url.query += percentEncode(buffer[i]);
+      } else {
+        this.url.query += String.fromCodePoint(buffer[i]);
+      }
+    }
+
+    this.buffer = "";
+    if (c === 35) {
+      this.url.fragment = "";
+      this.state = "fragment";
+    }
+  } else {
+    // TODO: If c is not a URL code point and not "%", parse error.
+    if (c === 37 &&
+      (!isASCIIHex(this.input[this.pointer + 1]) ||
+        !isASCIIHex(this.input[this.pointer + 2]))) {
+      this.parseError = true;
+    }
+
+    this.buffer += cStr;
+  }
+
+  return true;
+};
+
+URLStateMachine.prototype["parse fragment"] = function parseFragment(c) {
+  if (isNaN(c)) { // do nothing
+  } else if (c === 0x0) {
+    this.parseError = true;
+  } else {
+    // TODO: If c is not a URL code point and not "%", parse error.
+    if (c === 37 &&
+      (!isASCIIHex(this.input[this.pointer + 1]) ||
+        !isASCIIHex(this.input[this.pointer + 2]))) {
+      this.parseError = true;
+    }
+
+    this.url.fragment += percentEncodeChar(c, isC0ControlPercentEncode);
+  }
+
+  return true;
+};
+
+function serializeURL(url, excludeFragment) {
+  let output = url.scheme + ":";
+  if (url.host !== null) {
+    output += "//";
+
+    if (url.username !== "" || url.password !== "") {
+      output += url.username;
+      if (url.password !== "") {
+        output += ":" + url.password;
+      }
+      output += "@";
+    }
+
+    output += serializeHost(url.host);
+
+    if (url.port !== null) {
+      output += ":" + url.port;
+    }
+  } else if (url.host === null && url.scheme === "file") {
+    output += "//";
+  }
+
+  if (url.cannotBeABaseURL) {
+    output += url.path[0];
+  } else {
+    for (const string of url.path) {
+      output += "/" + string;
+    }
+  }
+
+  if (url.query !== null) {
+    output += "?" + url.query;
+  }
+
+  if (!excludeFragment && url.fragment !== null) {
+    output += "#" + url.fragment;
+  }
+
+  return output;
+}
+
+function serializeOrigin(tuple) {
+  let result = tuple.scheme + "://";
+  result += serializeHost(tuple.host);
+
+  if (tuple.port !== null) {
+    result += ":" + tuple.port;
+  }
+
+  return result;
+}
+
+module.exports.serializeURL = serializeURL;
+
+module.exports.serializeURLOrigin = function (url) {
+  // https://url.spec.whatwg.org/#concept-url-origin
+  switch (url.scheme) {
+    case "blob":
+      try {
+        return module.exports.serializeURLOrigin(module.exports.parseURL(url.path[0]));
+      } catch (e) {
+        // serializing an opaque origin returns "null"
+        return "null";
+      }
+    case "ftp":
+    case "gopher":
+    case "http":
+    case "https":
+    case "ws":
+    case "wss":
+      return serializeOrigin({
+        scheme: url.scheme,
+        host: url.host,
+        port: url.port
+      });
+    case "file":
+      // spec says "exercise to the reader", chrome says "file://"
+      return "file://";
+    default:
+      // serializing an opaque origin returns "null"
+      return "null";
+  }
+};
+
+module.exports.basicURLParse = function (input, options) {
+  if (options === undefined) {
+    options = {};
+  }
+
+  const usm = new URLStateMachine(input, options.baseURL, options.encodingOverride, options.url, options.stateOverride);
+  if (usm.failure) {
+    return "failure";
+  }
+
+  return usm.url;
+};
+
+module.exports.setTheUsername = function (url, username) {
+  url.username = "";
+  const decoded = punycode.ucs2.decode(username);
+  for (let i = 0; i < decoded.length; ++i) {
+    url.username += percentEncodeChar(decoded[i], isUserinfoPercentEncode);
+  }
+};
+
+module.exports.setThePassword = function (url, password) {
+  url.password = "";
+  const decoded = punycode.ucs2.decode(password);
+  for (let i = 0; i < decoded.length; ++i) {
+    url.password += percentEncodeChar(decoded[i], isUserinfoPercentEncode);
+  }
+};
+
+module.exports.serializeHost = serializeHost;
+
+module.exports.cannotHaveAUsernamePasswordPort = cannotHaveAUsernamePasswordPort;
+
+module.exports.serializeInteger = function (integer) {
+  return String(integer);
+};
+
+module.exports.parseURL = function (input, options) {
+  if (options === undefined) {
+    options = {};
+  }
+
+  // We don't handle blobs, so this just delegates:
+  return module.exports.basicURLParse(input, { baseURL: options.baseURL, encodingOverride: options.encodingOverride });
+};
diff --git a/node_modules/whatwg-url/lib/utils.js b/node_modules/whatwg-url/lib/utils.js
new file mode 100644
index 0000000..a562009
--- /dev/null
+++ b/node_modules/whatwg-url/lib/utils.js
@@ -0,0 +1,20 @@
+"use strict";
+
+module.exports.mixin = function mixin(target, source) {
+  const keys = Object.getOwnPropertyNames(source);
+  for (let i = 0; i < keys.length; ++i) {
+    Object.defineProperty(target, keys[i], Object.getOwnPropertyDescriptor(source, keys[i]));
+  }
+};
+
+module.exports.wrapperSymbol = Symbol("wrapper");
+module.exports.implSymbol = Symbol("impl");
+
+module.exports.wrapperForImpl = function (impl) {
+  return impl[module.exports.wrapperSymbol];
+};
+
+module.exports.implForWrapper = function (wrapper) {
+  return wrapper[module.exports.implSymbol];
+};
+
diff --git a/node_modules/whatwg-url/package.json b/node_modules/whatwg-url/package.json
new file mode 100644
index 0000000..fce35ae
--- /dev/null
+++ b/node_modules/whatwg-url/package.json
@@ -0,0 +1,32 @@
+{
+  "name": "whatwg-url",
+  "version": "5.0.0",
+  "description": "An implementation of the WHATWG URL Standard's URL API and parsing machinery",
+  "main": "lib/public-api.js",
+  "files": [
+    "lib/"
+  ],
+  "author": "Sebastian Mayr <github@smayr.name>",
+  "license": "MIT",
+  "repository": "jsdom/whatwg-url",
+  "dependencies": {
+    "tr46": "~0.0.3",
+    "webidl-conversions": "^3.0.0"
+  },
+  "devDependencies": {
+    "eslint": "^2.6.0",
+    "istanbul": "~0.4.3",
+    "mocha": "^2.2.4",
+    "recast": "~0.10.29",
+    "request": "^2.55.0",
+    "webidl2js": "^3.0.2"
+  },
+  "scripts": {
+    "build": "node scripts/transform.js && node scripts/convert-idl.js",
+    "coverage": "istanbul cover node_modules/mocha/bin/_mocha",
+    "lint": "eslint .",
+    "prepublish": "npm run build",
+    "pretest": "node scripts/get-latest-platform-tests.js && npm run build",
+    "test": "mocha"
+  }
+}
diff --git a/node_modules/which/CHANGELOG.md b/node_modules/which/CHANGELOG.md
new file mode 100644
index 0000000..7fb1f20
--- /dev/null
+++ b/node_modules/which/CHANGELOG.md
@@ -0,0 +1,166 @@
+# Changes
+
+
+## 2.0.2
+
+* Rename bin to `node-which`
+
+## 2.0.1
+
+* generate changelog and publish on version bump
+* enforce 100% test coverage
+* Promise interface
+
+## 2.0.0
+
+* Parallel tests, modern JavaScript, and drop support for node < 8
+
+## 1.3.1
+
+* update deps
+* update travis
+
+## v1.3.0
+
+* Add nothrow option to which.sync
+* update tap
+
+## v1.2.14
+
+* appveyor: drop node 5 and 0.x
+* travis-ci: add node 6, drop 0.x
+
+## v1.2.13
+
+* test: Pass missing option to pass on windows
+* update tap
+* update isexe to 2.0.0
+* neveragain.tech pledge request
+
+## v1.2.12
+
+* Removed unused require
+
+## v1.2.11
+
+* Prevent changelog script from being included in package
+
+## v1.2.10
+
+* Use env.PATH only, not env.Path
+
+## v1.2.9
+
+* fix for paths starting with ../
+* Remove unused `is-absolute` module
+
+## v1.2.8
+
+* bullet items in changelog that contain (but don't start with) #
+
+## v1.2.7
+
+* strip 'update changelog' changelog entries out of changelog
+
+## v1.2.6
+
+* make the changelog bulleted
+
+## v1.2.5
+
+* make a changelog, and keep it up to date
+* don't include tests in package
+* Properly handle relative-path executables
+* appveyor
+* Attach error code to Not Found error
+* Make tests pass on Windows
+
+## v1.2.4
+
+* Fix typo
+
+## v1.2.3
+
+* update isexe, fix regression in pathExt handling
+
+## v1.2.2
+
+* update deps, use isexe module, test windows
+
+## v1.2.1
+
+* Sometimes windows PATH entries are quoted
+* Fixed a bug in the check for group and user mode bits. This bug was introduced during refactoring for supporting strict mode.
+* doc cli
+
+## v1.2.0
+
+* Add support for opt.all and -as cli flags
+* test the bin
+* update travis
+* Allow checking for multiple programs in bin/which
+* tap 2
+
+## v1.1.2
+
+* travis
+* Refactored and fixed undefined error on Windows
+* Support strict mode
+
+## v1.1.1
+
+* test +g exes against secondary groups, if available
+* Use windows exe semantics on cygwin & msys
+* cwd should be first in path on win32, not last
+* Handle lower-case 'env.Path' on Windows
+* Update docs
+* use single-quotes
+
+## v1.1.0
+
+* Add tests, depend on is-absolute
+
+## v1.0.9
+
+* which.js: root is allowed to execute files owned by anyone
+
+## v1.0.8
+
+* don't use graceful-fs
+
+## v1.0.7
+
+* add license to package.json
+
+## v1.0.6
+
+* isc license
+
+## 1.0.5
+
+* Awful typo
+
+## 1.0.4
+
+* Test for path absoluteness properly
+* win: Allow '' as a pathext if cmd has a . in it
+
+## 1.0.3
+
+* Remove references to execPath
+* Make `which.sync()` work on Windows by honoring the PATHEXT variable.
+* Make `isExe()` always return true on Windows.
+* MIT
+
+## 1.0.2
+
+* Only files can be exes
+
+## 1.0.1
+
+* Respect the PATHEXT env for win32 support
+* should 0755 the bin
+* binary
+* guts
+* package
+* 1st
diff --git a/node_modules/which/LICENSE b/node_modules/which/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/which/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/which/README.md b/node_modules/which/README.md
new file mode 100644
index 0000000..cd83350
--- /dev/null
+++ b/node_modules/which/README.md
@@ -0,0 +1,54 @@
+# which
+
+Like the unix `which` utility.
+
+Finds the first instance of a specified executable in the PATH
+environment variable.  Does not cache the results, so `hash -r` is not
+needed when the PATH changes.
+
+## USAGE
+
+```javascript
+var which = require('which')
+
+// async usage
+which('node', function (er, resolvedPath) {
+  // er is returned if no "node" is found on the PATH
+  // if it is found, then the absolute path to the exec is returned
+})
+
+// or promise
+which('node').then(resolvedPath => { ... }).catch(er => { ... not found ... })
+
+// sync usage
+// throws if not found
+var resolved = which.sync('node')
+
+// if nothrow option is used, returns null if not found
+resolved = which.sync('node', {nothrow: true})
+
+// Pass options to override the PATH and PATHEXT environment vars.
+which('node', { path: someOtherPath }, function (er, resolved) {
+  if (er)
+    throw er
+  console.log('found at %j', resolved)
+})
+```
+
+## CLI USAGE
+
+Same as the BSD `which(1)` binary.
+
+```
+usage: which [-as] program ...
+```
+
+## OPTIONS
+
+You may pass an options object as the second argument.
+
+- `path`: Use instead of the `PATH` environment variable.
+- `pathExt`: Use instead of the `PATHEXT` environment variable.
+- `all`: Return all matches, instead of just the first one.  Note that
+  this means the function returns an array of strings instead of a
+  single string.
diff --git a/node_modules/which/bin/node-which b/node_modules/which/bin/node-which
new file mode 100644
index 0000000..7cee372
--- /dev/null
+++ b/node_modules/which/bin/node-which
@@ -0,0 +1,52 @@
+#!/usr/bin/env node
+var which = require("../")
+if (process.argv.length < 3)
+  usage()
+
+function usage () {
+  console.error('usage: which [-as] program ...')
+  process.exit(1)
+}
+
+var all = false
+var silent = false
+var dashdash = false
+var args = process.argv.slice(2).filter(function (arg) {
+  if (dashdash || !/^-/.test(arg))
+    return true
+
+  if (arg === '--') {
+    dashdash = true
+    return false
+  }
+
+  var flags = arg.substr(1).split('')
+  for (var f = 0; f < flags.length; f++) {
+    var flag = flags[f]
+    switch (flag) {
+      case 's':
+        silent = true
+        break
+      case 'a':
+        all = true
+        break
+      default:
+        console.error('which: illegal option -- ' + flag)
+        usage()
+    }
+  }
+  return false
+})
+
+process.exit(args.reduce(function (pv, current) {
+  try {
+    var f = which.sync(current, { all: all })
+    if (all)
+      f = f.join('\n')
+    if (!silent)
+      console.log(f)
+    return pv;
+  } catch (e) {
+    return 1;
+  }
+}, 0))
diff --git a/node_modules/which/package.json b/node_modules/which/package.json
new file mode 100644
index 0000000..97ad7fb
--- /dev/null
+++ b/node_modules/which/package.json
@@ -0,0 +1,43 @@
+{
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me)",
+  "name": "which",
+  "description": "Like which(1) unix command. Find the first instance of an executable in the PATH.",
+  "version": "2.0.2",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/isaacs/node-which.git"
+  },
+  "main": "which.js",
+  "bin": {
+    "node-which": "./bin/node-which"
+  },
+  "license": "ISC",
+  "dependencies": {
+    "isexe": "^2.0.0"
+  },
+  "devDependencies": {
+    "mkdirp": "^0.5.0",
+    "rimraf": "^2.6.2",
+    "tap": "^14.6.9"
+  },
+  "scripts": {
+    "test": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublish": "npm run changelog",
+    "prechangelog": "bash gen-changelog.sh",
+    "changelog": "git add CHANGELOG.md",
+    "postchangelog": "git commit -m 'update changelog - '${npm_package_version}",
+    "postpublish": "git push origin --follow-tags"
+  },
+  "files": [
+    "which.js",
+    "bin/node-which"
+  ],
+  "tap": {
+    "check-coverage": true
+  },
+  "engines": {
+    "node": ">= 8"
+  }
+}
diff --git a/node_modules/which/which.js b/node_modules/which/which.js
new file mode 100644
index 0000000..82afffd
--- /dev/null
+++ b/node_modules/which/which.js
@@ -0,0 +1,125 @@
+const isWindows = process.platform === 'win32' ||
+    process.env.OSTYPE === 'cygwin' ||
+    process.env.OSTYPE === 'msys'
+
+const path = require('path')
+const COLON = isWindows ? ';' : ':'
+const isexe = require('isexe')
+
+const getNotFoundError = (cmd) =>
+  Object.assign(new Error(`not found: ${cmd}`), { code: 'ENOENT' })
+
+const getPathInfo = (cmd, opt) => {
+  const colon = opt.colon || COLON
+
+  // If it has a slash, then we don't bother searching the pathenv.
+  // just check the file itself, and that's it.
+  const pathEnv = cmd.match(/\//) || isWindows && cmd.match(/\\/) ? ['']
+    : (
+      [
+        // windows always checks the cwd first
+        ...(isWindows ? [process.cwd()] : []),
+        ...(opt.path || process.env.PATH ||
+          /* istanbul ignore next: very unusual */ '').split(colon),
+      ]
+    )
+  const pathExtExe = isWindows
+    ? opt.pathExt || process.env.PATHEXT || '.EXE;.CMD;.BAT;.COM'
+    : ''
+  const pathExt = isWindows ? pathExtExe.split(colon) : ['']
+
+  if (isWindows) {
+    if (cmd.indexOf('.') !== -1 && pathExt[0] !== '')
+      pathExt.unshift('')
+  }
+
+  return {
+    pathEnv,
+    pathExt,
+    pathExtExe,
+  }
+}
+
+const which = (cmd, opt, cb) => {
+  if (typeof opt === 'function') {
+    cb = opt
+    opt = {}
+  }
+  if (!opt)
+    opt = {}
+
+  const { pathEnv, pathExt, pathExtExe } = getPathInfo(cmd, opt)
+  const found = []
+
+  const step = i => new Promise((resolve, reject) => {
+    if (i === pathEnv.length)
+      return opt.all && found.length ? resolve(found)
+        : reject(getNotFoundError(cmd))
+
+    const ppRaw = pathEnv[i]
+    const pathPart = /^".*"$/.test(ppRaw) ? ppRaw.slice(1, -1) : ppRaw
+
+    const pCmd = path.join(pathPart, cmd)
+    const p = !pathPart && /^\.[\\\/]/.test(cmd) ? cmd.slice(0, 2) + pCmd
+      : pCmd
+
+    resolve(subStep(p, i, 0))
+  })
+
+  const subStep = (p, i, ii) => new Promise((resolve, reject) => {
+    if (ii === pathExt.length)
+      return resolve(step(i + 1))
+    const ext = pathExt[ii]
+    isexe(p + ext, { pathExt: pathExtExe }, (er, is) => {
+      if (!er && is) {
+        if (opt.all)
+          found.push(p + ext)
+        else
+          return resolve(p + ext)
+      }
+      return resolve(subStep(p, i, ii + 1))
+    })
+  })
+
+  return cb ? step(0).then(res => cb(null, res), cb) : step(0)
+}
+
+const whichSync = (cmd, opt) => {
+  opt = opt || {}
+
+  const { pathEnv, pathExt, pathExtExe } = getPathInfo(cmd, opt)
+  const found = []
+
+  for (let i = 0; i < pathEnv.length; i ++) {
+    const ppRaw = pathEnv[i]
+    const pathPart = /^".*"$/.test(ppRaw) ? ppRaw.slice(1, -1) : ppRaw
+
+    const pCmd = path.join(pathPart, cmd)
+    const p = !pathPart && /^\.[\\\/]/.test(cmd) ? cmd.slice(0, 2) + pCmd
+      : pCmd
+
+    for (let j = 0; j < pathExt.length; j ++) {
+      const cur = p + pathExt[j]
+      try {
+        const is = isexe.sync(cur, { pathExt: pathExtExe })
+        if (is) {
+          if (opt.all)
+            found.push(cur)
+          else
+            return cur
+        }
+      } catch (ex) {}
+    }
+  }
+
+  if (opt.all && found.length)
+    return found
+
+  if (opt.nothrow)
+    return null
+
+  throw getNotFoundError(cmd)
+}
+
+module.exports = which
+which.sync = whichSync
diff --git a/node_modules/wide-align/LICENSE b/node_modules/wide-align/LICENSE
new file mode 100644
index 0000000..f4be44d
--- /dev/null
+++ b/node_modules/wide-align/LICENSE
@@ -0,0 +1,14 @@
+Copyright (c) 2015, Rebecca Turner <me@re-becca.org>
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
diff --git a/node_modules/wide-align/README.md b/node_modules/wide-align/README.md
new file mode 100644
index 0000000..32f1be0
--- /dev/null
+++ b/node_modules/wide-align/README.md
@@ -0,0 +1,47 @@
+wide-align
+----------
+
+A wide-character aware text alignment function for use in terminals / on the
+console.
+
+### Usage
+
+```
+var align = require('wide-align')
+
+// Note that if you view this on a unicode console, all of the slashes are
+// aligned. This is because on a console, all narrow characters are
+// an en wide and all wide characters are an em. In browsers, this isn't
+// held to and wide characters like "古" can be less than two narrow
+// characters even with a fixed width font.
+
+console.log(align.center('abc', 10))     // '   abc    '
+console.log(align.center('古古古', 10))  // '  古古古  '
+console.log(align.left('abc', 10))       // 'abc       '
+console.log(align.left('古古古', 10))    // '古古古    '
+console.log(align.right('abc', 10))      // '       abc'
+console.log(align.right('古古古', 10))   // '    古古古'
+```
+
+### Functions
+
+#### `align.center(str, length)` → `str`
+
+Returns *str* with spaces added to both sides such that that it is *length*
+chars long and centered in the spaces.
+
+#### `align.left(str, length)` → `str`
+
+Returns *str* with spaces to the right such that it is *length* chars long.
+
+### `align.right(str, length)` → `str`
+
+Returns *str* with spaces to the left such that it is *length* chars long.
+
+### Origins
+
+These functions were originally taken from 
+[cliui](https://npmjs.com/package/cliui). Changes include switching to the
+MUCH faster pad generation function from
+[lodash](https://npmjs.com/package/lodash), making center alignment pad
+both sides and adding left alignment.
diff --git a/node_modules/wide-align/align.js b/node_modules/wide-align/align.js
new file mode 100644
index 0000000..4f94ca4
--- /dev/null
+++ b/node_modules/wide-align/align.js
@@ -0,0 +1,65 @@
+'use strict'
+var stringWidth = require('string-width')
+
+exports.center = alignCenter
+exports.left = alignLeft
+exports.right = alignRight
+
+// lodash's way of generating pad characters.
+
+function createPadding (width) {
+  var result = ''
+  var string = ' '
+  var n = width
+  do {
+    if (n % 2) {
+      result += string;
+    }
+    n = Math.floor(n / 2);
+    string += string;
+  } while (n);
+
+  return result;
+}
+
+function alignLeft (str, width) {
+  var trimmed = str.trimRight()
+  if (trimmed.length === 0 && str.length >= width) return str
+  var padding = ''
+  var strWidth = stringWidth(trimmed)
+
+  if (strWidth < width) {
+    padding = createPadding(width - strWidth)
+  }
+
+  return trimmed + padding
+}
+
+function alignRight (str, width) {
+  var trimmed = str.trimLeft()
+  if (trimmed.length === 0 && str.length >= width) return str
+  var padding = ''
+  var strWidth = stringWidth(trimmed)
+
+  if (strWidth < width) {
+    padding = createPadding(width - strWidth)
+  }
+
+  return padding + trimmed
+}
+
+function alignCenter (str, width) {
+  var trimmed = str.trim()
+  if (trimmed.length === 0 && str.length >= width) return str
+  var padLeft = ''
+  var padRight = ''
+  var strWidth = stringWidth(trimmed)
+
+  if (strWidth < width) {
+    var padLeftBy = parseInt((width - strWidth) / 2, 10) 
+    padLeft = createPadding(padLeftBy)
+    padRight = createPadding(width - (strWidth + padLeftBy))
+  }
+
+  return padLeft + trimmed + padRight
+}
diff --git a/node_modules/wide-align/package.json b/node_modules/wide-align/package.json
new file mode 100644
index 0000000..2dd2707
--- /dev/null
+++ b/node_modules/wide-align/package.json
@@ -0,0 +1,33 @@
+{
+  "name": "wide-align",
+  "version": "1.1.5",
+  "description": "A wide-character aware text alignment function for use on the console or with fixed width fonts.",
+  "main": "align.js",
+  "scripts": {
+    "test": "tap --coverage test/*.js"
+  },
+  "keywords": [
+    "wide",
+    "double",
+    "unicode",
+    "cjkv",
+    "pad",
+    "align"
+  ],
+  "author": "Rebecca Turner <me@re-becca.org> (http://re-becca.org/)",
+  "license": "ISC",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/iarna/wide-align"
+  },
+  "//": "But not version 5 of string-width, as that's ESM only",
+  "dependencies": {
+    "string-width": "^1.0.2 || 2 || 3 || 4"
+  },
+  "devDependencies": {
+    "tap": "*"
+  },
+  "files": [
+    "align.js"
+  ]
+}
diff --git a/node_modules/wrappy/LICENSE b/node_modules/wrappy/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/wrappy/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/wrappy/README.md b/node_modules/wrappy/README.md
new file mode 100644
index 0000000..98eab25
--- /dev/null
+++ b/node_modules/wrappy/README.md
@@ -0,0 +1,36 @@
+# wrappy
+
+Callback wrapping utility
+
+## USAGE
+
+```javascript
+var wrappy = require("wrappy")
+
+// var wrapper = wrappy(wrapperFunction)
+
+// make sure a cb is called only once
+// See also: http://npm.im/once for this specific use case
+var once = wrappy(function (cb) {
+  var called = false
+  return function () {
+    if (called) return
+    called = true
+    return cb.apply(this, arguments)
+  }
+})
+
+function printBoo () {
+  console.log('boo')
+}
+// has some rando property
+printBoo.iAmBooPrinter = true
+
+var onlyPrintOnce = once(printBoo)
+
+onlyPrintOnce() // prints 'boo'
+onlyPrintOnce() // does nothing
+
+// random property is retained!
+assert.equal(onlyPrintOnce.iAmBooPrinter, true)
+```
diff --git a/node_modules/wrappy/package.json b/node_modules/wrappy/package.json
new file mode 100644
index 0000000..1307520
--- /dev/null
+++ b/node_modules/wrappy/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "wrappy",
+  "version": "1.0.2",
+  "description": "Callback wrapping utility",
+  "main": "wrappy.js",
+  "files": [
+    "wrappy.js"
+  ],
+  "directories": {
+    "test": "test"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "tap": "^2.3.1"
+  },
+  "scripts": {
+    "test": "tap --coverage test/*.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/wrappy"
+  },
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/npm/wrappy/issues"
+  },
+  "homepage": "https://github.com/npm/wrappy"
+}
diff --git a/node_modules/wrappy/wrappy.js b/node_modules/wrappy/wrappy.js
new file mode 100644
index 0000000..bb7e7d6
--- /dev/null
+++ b/node_modules/wrappy/wrappy.js
@@ -0,0 +1,33 @@
+// Returns a wrapper function that returns a wrapped callback
+// The wrapper function should do some stuff, and return a
+// presumably different callback function.
+// This makes sure that own properties are retained, so that
+// decorations and such are not lost along the way.
+module.exports = wrappy
+function wrappy (fn, cb) {
+  if (fn && cb) return wrappy(fn)(cb)
+
+  if (typeof fn !== 'function')
+    throw new TypeError('need wrapper function')
+
+  Object.keys(fn).forEach(function (k) {
+    wrapper[k] = fn[k]
+  })
+
+  return wrapper
+
+  function wrapper() {
+    var args = new Array(arguments.length)
+    for (var i = 0; i < args.length; i++) {
+      args[i] = arguments[i]
+    }
+    var ret = fn.apply(this, args)
+    var cb = args[args.length-1]
+    if (typeof ret === 'function' && ret !== cb) {
+      Object.keys(cb).forEach(function (k) {
+        ret[k] = cb[k]
+      })
+    }
+    return ret
+  }
+}
diff --git a/node_modules/yallist/LICENSE b/node_modules/yallist/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/node_modules/yallist/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/node_modules/yallist/README.md b/node_modules/yallist/README.md
new file mode 100644
index 0000000..f586101
--- /dev/null
+++ b/node_modules/yallist/README.md
@@ -0,0 +1,204 @@
+# yallist
+
+Yet Another Linked List
+
+There are many doubly-linked list implementations like it, but this
+one is mine.
+
+For when an array would be too big, and a Map can't be iterated in
+reverse order.
+
+
+[![Build Status](https://travis-ci.org/isaacs/yallist.svg?branch=master)](https://travis-ci.org/isaacs/yallist) [![Coverage Status](https://coveralls.io/repos/isaacs/yallist/badge.svg?service=github)](https://coveralls.io/github/isaacs/yallist)
+
+## basic usage
+
+```javascript
+var yallist = require('yallist')
+var myList = yallist.create([1, 2, 3])
+myList.push('foo')
+myList.unshift('bar')
+// of course pop() and shift() are there, too
+console.log(myList.toArray()) // ['bar', 1, 2, 3, 'foo']
+myList.forEach(function (k) {
+  // walk the list head to tail
+})
+myList.forEachReverse(function (k, index, list) {
+  // walk the list tail to head
+})
+var myDoubledList = myList.map(function (k) {
+  return k + k
+})
+// now myDoubledList contains ['barbar', 2, 4, 6, 'foofoo']
+// mapReverse is also a thing
+var myDoubledListReverse = myList.mapReverse(function (k) {
+  return k + k
+}) // ['foofoo', 6, 4, 2, 'barbar']
+
+var reduced = myList.reduce(function (set, entry) {
+  set += entry
+  return set
+}, 'start')
+console.log(reduced) // 'startfoo123bar'
+```
+
+## api
+
+The whole API is considered "public".
+
+Functions with the same name as an Array method work more or less the
+same way.
+
+There's reverse versions of most things because that's the point.
+
+### Yallist
+
+Default export, the class that holds and manages a list.
+
+Call it with either a forEach-able (like an array) or a set of
+arguments, to initialize the list.
+
+The Array-ish methods all act like you'd expect.  No magic length,
+though, so if you change that it won't automatically prune or add
+empty spots.
+
+### Yallist.create(..)
+
+Alias for Yallist function.  Some people like factories.
+
+#### yallist.head
+
+The first node in the list
+
+#### yallist.tail
+
+The last node in the list
+
+#### yallist.length
+
+The number of nodes in the list.  (Change this at your peril.  It is
+not magic like Array length.)
+
+#### yallist.toArray()
+
+Convert the list to an array.
+
+#### yallist.forEach(fn, [thisp])
+
+Call a function on each item in the list.
+
+#### yallist.forEachReverse(fn, [thisp])
+
+Call a function on each item in the list, in reverse order.
+
+#### yallist.get(n)
+
+Get the data at position `n` in the list.  If you use this a lot,
+probably better off just using an Array.
+
+#### yallist.getReverse(n)
+
+Get the data at position `n`, counting from the tail.
+
+#### yallist.map(fn, thisp)
+
+Create a new Yallist with the result of calling the function on each
+item.
+
+#### yallist.mapReverse(fn, thisp)
+
+Same as `map`, but in reverse.
+
+#### yallist.pop()
+
+Get the data from the list tail, and remove the tail from the list.
+
+#### yallist.push(item, ...)
+
+Insert one or more items to the tail of the list.
+
+#### yallist.reduce(fn, initialValue)
+
+Like Array.reduce.
+
+#### yallist.reduceReverse
+
+Like Array.reduce, but in reverse.
+
+#### yallist.reverse
+
+Reverse the list in place.
+
+#### yallist.shift()
+
+Get the data from the list head, and remove the head from the list.
+
+#### yallist.slice([from], [to])
+
+Just like Array.slice, but returns a new Yallist.
+
+#### yallist.sliceReverse([from], [to])
+
+Just like yallist.slice, but the result is returned in reverse.
+
+#### yallist.toArray()
+
+Create an array representation of the list.
+
+#### yallist.toArrayReverse()
+
+Create a reversed array representation of the list.
+
+#### yallist.unshift(item, ...)
+
+Insert one or more items to the head of the list.
+
+#### yallist.unshiftNode(node)
+
+Move a Node object to the front of the list.  (That is, pull it out of
+wherever it lives, and make it the new head.)
+
+If the node belongs to a different list, then that list will remove it
+first.
+
+#### yallist.pushNode(node)
+
+Move a Node object to the end of the list.  (That is, pull it out of
+wherever it lives, and make it the new tail.)
+
+If the node belongs to a list already, then that list will remove it
+first.
+
+#### yallist.removeNode(node)
+
+Remove a node from the list, preserving referential integrity of head
+and tail and other nodes.
+
+Will throw an error if you try to have a list remove a node that
+doesn't belong to it.
+
+### Yallist.Node
+
+The class that holds the data and is actually the list.
+
+Call with `var n = new Node(value, previousNode, nextNode)`
+
+Note that if you do direct operations on Nodes themselves, it's very
+easy to get into weird states where the list is broken.  Be careful :)
+
+#### node.next
+
+The next node in the list.
+
+#### node.prev
+
+The previous node in the list.
+
+#### node.value
+
+The data the node contains.
+
+#### node.list
+
+The list to which this node belongs.  (Null if it does not belong to
+any list.)
diff --git a/node_modules/yallist/iterator.js b/node_modules/yallist/iterator.js
new file mode 100644
index 0000000..d41c97a
--- /dev/null
+++ b/node_modules/yallist/iterator.js
@@ -0,0 +1,8 @@
+'use strict'
+module.exports = function (Yallist) {
+  Yallist.prototype[Symbol.iterator] = function* () {
+    for (let walker = this.head; walker; walker = walker.next) {
+      yield walker.value
+    }
+  }
+}
diff --git a/node_modules/yallist/package.json b/node_modules/yallist/package.json
new file mode 100644
index 0000000..8a08386
--- /dev/null
+++ b/node_modules/yallist/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "yallist",
+  "version": "4.0.0",
+  "description": "Yet Another Linked List",
+  "main": "yallist.js",
+  "directories": {
+    "test": "test"
+  },
+  "files": [
+    "yallist.js",
+    "iterator.js"
+  ],
+  "dependencies": {},
+  "devDependencies": {
+    "tap": "^12.1.0"
+  },
+  "scripts": {
+    "test": "tap test/*.js --100",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --all; git push origin --tags"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/isaacs/yallist.git"
+  },
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "license": "ISC"
+}
diff --git a/node_modules/yallist/yallist.js b/node_modules/yallist/yallist.js
new file mode 100644
index 0000000..4e83ab1
--- /dev/null
+++ b/node_modules/yallist/yallist.js
@@ -0,0 +1,426 @@
+'use strict'
+module.exports = Yallist
+
+Yallist.Node = Node
+Yallist.create = Yallist
+
+function Yallist (list) {
+  var self = this
+  if (!(self instanceof Yallist)) {
+    self = new Yallist()
+  }
+
+  self.tail = null
+  self.head = null
+  self.length = 0
+
+  if (list && typeof list.forEach === 'function') {
+    list.forEach(function (item) {
+      self.push(item)
+    })
+  } else if (arguments.length > 0) {
+    for (var i = 0, l = arguments.length; i < l; i++) {
+      self.push(arguments[i])
+    }
+  }
+
+  return self
+}
+
+Yallist.prototype.removeNode = function (node) {
+  if (node.list !== this) {
+    throw new Error('removing node which does not belong to this list')
+  }
+
+  var next = node.next
+  var prev = node.prev
+
+  if (next) {
+    next.prev = prev
+  }
+
+  if (prev) {
+    prev.next = next
+  }
+
+  if (node === this.head) {
+    this.head = next
+  }
+  if (node === this.tail) {
+    this.tail = prev
+  }
+
+  node.list.length--
+  node.next = null
+  node.prev = null
+  node.list = null
+
+  return next
+}
+
+Yallist.prototype.unshiftNode = function (node) {
+  if (node === this.head) {
+    return
+  }
+
+  if (node.list) {
+    node.list.removeNode(node)
+  }
+
+  var head = this.head
+  node.list = this
+  node.next = head
+  if (head) {
+    head.prev = node
+  }
+
+  this.head = node
+  if (!this.tail) {
+    this.tail = node
+  }
+  this.length++
+}
+
+Yallist.prototype.pushNode = function (node) {
+  if (node === this.tail) {
+    return
+  }
+
+  if (node.list) {
+    node.list.removeNode(node)
+  }
+
+  var tail = this.tail
+  node.list = this
+  node.prev = tail
+  if (tail) {
+    tail.next = node
+  }
+
+  this.tail = node
+  if (!this.head) {
+    this.head = node
+  }
+  this.length++
+}
+
+Yallist.prototype.push = function () {
+  for (var i = 0, l = arguments.length; i < l; i++) {
+    push(this, arguments[i])
+  }
+  return this.length
+}
+
+Yallist.prototype.unshift = function () {
+  for (var i = 0, l = arguments.length; i < l; i++) {
+    unshift(this, arguments[i])
+  }
+  return this.length
+}
+
+Yallist.prototype.pop = function () {
+  if (!this.tail) {
+    return undefined
+  }
+
+  var res = this.tail.value
+  this.tail = this.tail.prev
+  if (this.tail) {
+    this.tail.next = null
+  } else {
+    this.head = null
+  }
+  this.length--
+  return res
+}
+
+Yallist.prototype.shift = function () {
+  if (!this.head) {
+    return undefined
+  }
+
+  var res = this.head.value
+  this.head = this.head.next
+  if (this.head) {
+    this.head.prev = null
+  } else {
+    this.tail = null
+  }
+  this.length--
+  return res
+}
+
+Yallist.prototype.forEach = function (fn, thisp) {
+  thisp = thisp || this
+  for (var walker = this.head, i = 0; walker !== null; i++) {
+    fn.call(thisp, walker.value, i, this)
+    walker = walker.next
+  }
+}
+
+Yallist.prototype.forEachReverse = function (fn, thisp) {
+  thisp = thisp || this
+  for (var walker = this.tail, i = this.length - 1; walker !== null; i--) {
+    fn.call(thisp, walker.value, i, this)
+    walker = walker.prev
+  }
+}
+
+Yallist.prototype.get = function (n) {
+  for (var i = 0, walker = this.head; walker !== null && i < n; i++) {
+    // abort out of the list early if we hit a cycle
+    walker = walker.next
+  }
+  if (i === n && walker !== null) {
+    return walker.value
+  }
+}
+
+Yallist.prototype.getReverse = function (n) {
+  for (var i = 0, walker = this.tail; walker !== null && i < n; i++) {
+    // abort out of the list early if we hit a cycle
+    walker = walker.prev
+  }
+  if (i === n && walker !== null) {
+    return walker.value
+  }
+}
+
+Yallist.prototype.map = function (fn, thisp) {
+  thisp = thisp || this
+  var res = new Yallist()
+  for (var walker = this.head; walker !== null;) {
+    res.push(fn.call(thisp, walker.value, this))
+    walker = walker.next
+  }
+  return res
+}
+
+Yallist.prototype.mapReverse = function (fn, thisp) {
+  thisp = thisp || this
+  var res = new Yallist()
+  for (var walker = this.tail; walker !== null;) {
+    res.push(fn.call(thisp, walker.value, this))
+    walker = walker.prev
+  }
+  return res
+}
+
+Yallist.prototype.reduce = function (fn, initial) {
+  var acc
+  var walker = this.head
+  if (arguments.length > 1) {
+    acc = initial
+  } else if (this.head) {
+    walker = this.head.next
+    acc = this.head.value
+  } else {
+    throw new TypeError('Reduce of empty list with no initial value')
+  }
+
+  for (var i = 0; walker !== null; i++) {
+    acc = fn(acc, walker.value, i)
+    walker = walker.next
+  }
+
+  return acc
+}
+
+Yallist.prototype.reduceReverse = function (fn, initial) {
+  var acc
+  var walker = this.tail
+  if (arguments.length > 1) {
+    acc = initial
+  } else if (this.tail) {
+    walker = this.tail.prev
+    acc = this.tail.value
+  } else {
+    throw new TypeError('Reduce of empty list with no initial value')
+  }
+
+  for (var i = this.length - 1; walker !== null; i--) {
+    acc = fn(acc, walker.value, i)
+    walker = walker.prev
+  }
+
+  return acc
+}
+
+Yallist.prototype.toArray = function () {
+  var arr = new Array(this.length)
+  for (var i = 0, walker = this.head; walker !== null; i++) {
+    arr[i] = walker.value
+    walker = walker.next
+  }
+  return arr
+}
+
+Yallist.prototype.toArrayReverse = function () {
+  var arr = new Array(this.length)
+  for (var i = 0, walker = this.tail; walker !== null; i++) {
+    arr[i] = walker.value
+    walker = walker.prev
+  }
+  return arr
+}
+
+Yallist.prototype.slice = function (from, to) {
+  to = to || this.length
+  if (to < 0) {
+    to += this.length
+  }
+  from = from || 0
+  if (from < 0) {
+    from += this.length
+  }
+  var ret = new Yallist()
+  if (to < from || to < 0) {
+    return ret
+  }
+  if (from < 0) {
+    from = 0
+  }
+  if (to > this.length) {
+    to = this.length
+  }
+  for (var i = 0, walker = this.head; walker !== null && i < from; i++) {
+    walker = walker.next
+  }
+  for (; walker !== null && i < to; i++, walker = walker.next) {
+    ret.push(walker.value)
+  }
+  return ret
+}
+
+Yallist.prototype.sliceReverse = function (from, to) {
+  to = to || this.length
+  if (to < 0) {
+    to += this.length
+  }
+  from = from || 0
+  if (from < 0) {
+    from += this.length
+  }
+  var ret = new Yallist()
+  if (to < from || to < 0) {
+    return ret
+  }
+  if (from < 0) {
+    from = 0
+  }
+  if (to > this.length) {
+    to = this.length
+  }
+  for (var i = this.length, walker = this.tail; walker !== null && i > to; i--) {
+    walker = walker.prev
+  }
+  for (; walker !== null && i > from; i--, walker = walker.prev) {
+    ret.push(walker.value)
+  }
+  return ret
+}
+
+Yallist.prototype.splice = function (start, deleteCount, ...nodes) {
+  if (start > this.length) {
+    start = this.length - 1
+  }
+  if (start < 0) {
+    start = this.length + start;
+  }
+
+  for (var i = 0, walker = this.head; walker !== null && i < start; i++) {
+    walker = walker.next
+  }
+
+  var ret = []
+  for (var i = 0; walker && i < deleteCount; i++) {
+    ret.push(walker.value)
+    walker = this.removeNode(walker)
+  }
+  if (walker === null) {
+    walker = this.tail
+  }
+
+  if (walker !== this.head && walker !== this.tail) {
+    walker = walker.prev
+  }
+
+  for (var i = 0; i < nodes.length; i++) {
+    walker = insert(this, walker, nodes[i])
+  }
+  return ret;
+}
+
+Yallist.prototype.reverse = function () {
+  var head = this.head
+  var tail = this.tail
+  for (var walker = head; walker !== null; walker = walker.prev) {
+    var p = walker.prev
+    walker.prev = walker.next
+    walker.next = p
+  }
+  this.head = tail
+  this.tail = head
+  return this
+}
+
+function insert (self, node, value) {
+  var inserted = node === self.head ?
+    new Node(value, null, node, self) :
+    new Node(value, node, node.next, self)
+
+  if (inserted.next === null) {
+    self.tail = inserted
+  }
+  if (inserted.prev === null) {
+    self.head = inserted
+  }
+
+  self.length++
+
+  return inserted
+}
+
+function push (self, item) {
+  self.tail = new Node(item, self.tail, null, self)
+  if (!self.head) {
+    self.head = self.tail
+  }
+  self.length++
+}
+
+function unshift (self, item) {
+  self.head = new Node(item, null, self.head, self)
+  if (!self.tail) {
+    self.tail = self.head
+  }
+  self.length++
+}
+
+function Node (value, prev, next, list) {
+  if (!(this instanceof Node)) {
+    return new Node(value, prev, next, list)
+  }
+
+  this.list = list
+  this.value = value
+
+  if (prev) {
+    prev.next = this
+    this.prev = prev
+  } else {
+    this.prev = null
+  }
+
+  if (next) {
+    next.prev = this
+    this.next = next
+  } else {
+    this.next = null
+  }
+}
+
+try {
+  // add if support for Symbol.iterator is present
+  require('./iterator.js')(Yallist)
+} catch (er) {}
diff --git a/package-lock.json b/package-lock.json
index 2fa9281..f7473e0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,8 +9,74 @@
       "version": "1.0.0",
       "license": "ISC",
       "dependencies": {
+        "@socket.io/cluster-adapter": "^0.2.2",
         "express": "^4.18.2",
-        "socket.io": "^4.7.2"
+        "socket.io": "^4.7.2",
+        "sqlite": "^5.0.1",
+        "sqlite3": "^5.1.6"
+      }
+    },
+    "node_modules/@gar/promisify": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/@gar/promisify/-/promisify-1.1.3.tgz",
+      "integrity": "sha512-k2Ty1JcVojjJFwrg/ThKi2ujJ7XNLYaFGNB/bWT9wGR+oSMJHMa5w+CUq6p/pVrKeNNgA7pCqEcjSnHVoqJQFw==",
+      "optional": true
+    },
+    "node_modules/@mapbox/node-pre-gyp": {
+      "version": "1.0.11",
+      "resolved": "https://registry.npmjs.org/@mapbox/node-pre-gyp/-/node-pre-gyp-1.0.11.tgz",
+      "integrity": "sha512-Yhlar6v9WQgUp/He7BdgzOz8lqMQ8sU+jkCq7Wx8Myc5YFJLbEe7lgui/V7G1qB1DJykHSGwreceSaD60Y0PUQ==",
+      "dependencies": {
+        "detect-libc": "^2.0.0",
+        "https-proxy-agent": "^5.0.0",
+        "make-dir": "^3.1.0",
+        "node-fetch": "^2.6.7",
+        "nopt": "^5.0.0",
+        "npmlog": "^5.0.1",
+        "rimraf": "^3.0.2",
+        "semver": "^7.3.5",
+        "tar": "^6.1.11"
+      },
+      "bin": {
+        "node-pre-gyp": "bin/node-pre-gyp"
+      }
+    },
+    "node_modules/@npmcli/fs": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@npmcli/fs/-/fs-1.1.1.tgz",
+      "integrity": "sha512-8KG5RD0GVP4ydEzRn/I4BNDuxDtqVbOdm8675T49OIG/NGhaK0pjPX7ZcDlvKYbA+ulvVK3ztfcF4uBdOxuJbQ==",
+      "optional": true,
+      "dependencies": {
+        "@gar/promisify": "^1.0.1",
+        "semver": "^7.3.5"
+      }
+    },
+    "node_modules/@npmcli/move-file": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@npmcli/move-file/-/move-file-1.1.2.tgz",
+      "integrity": "sha512-1SUf/Cg2GzGDyaf15aR9St9TWlb+XvbZXWpDx8YKs7MLzMH/BCeopv+y9vzrzgkfykCGuWOlSu3mZhj2+FQcrg==",
+      "deprecated": "This functionality has been moved to @npmcli/fs",
+      "optional": true,
+      "dependencies": {
+        "mkdirp": "^1.0.4",
+        "rimraf": "^3.0.2"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/@socket.io/cluster-adapter": {
+      "version": "0.2.2",
+      "resolved": "https://registry.npmjs.org/@socket.io/cluster-adapter/-/cluster-adapter-0.2.2.tgz",
+      "integrity": "sha512-/tNcY6qQx0BOgjl4mFk3YxX6pjaPdEyeWhP88Ea9gTlISY4SfA7t8VxbryeAs5/9QgXzChlvSN/i37Gog3kWag==",
+      "dependencies": {
+        "debug": "~4.3.1"
+      },
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "socket.io-adapter": "^2.4.0"
       }
     },
     "node_modules/@socket.io/component-emitter": {
@@ -18,6 +84,15 @@
       "resolved": "https://registry.npmjs.org/@socket.io/component-emitter/-/component-emitter-3.1.0.tgz",
       "integrity": "sha512-+9jVqKhRSpsc591z5vX+X5Yyw+he/HCB4iQ/RYxw35CEPaY1gnsNE43nf9n9AaYjAQrTiI/mOwKUKdUs9vf7Xg=="
     },
+    "node_modules/@tootallnate/once": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@tootallnate/once/-/once-1.1.2.tgz",
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@@ -602,6 +1380,42 @@
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+      "resolved": "https://registry.npmjs.org/retry/-/retry-0.12.0.tgz",
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@@ -626,6 +1440,20 @@
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+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.5.4.tgz",
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@@ -681,6 +1509,11 @@
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@@ -699,6 +1532,21 @@
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@@ -736,6 +1584,73 @@
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+        "npm": ">= 3.0.0"
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+    "node_modules/socks-proxy-agent": {
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+      "resolved": "https://registry.npmjs.org/socks-proxy-agent/-/socks-proxy-agent-6.2.1.tgz",
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+      "optional": true,
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+        "debug": "^4.3.3",
+        "socks": "^2.6.2"
+      },
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+      "resolved": "https://registry.npmjs.org/sqlite/-/sqlite-5.0.1.tgz",
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+    },
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+      "resolved": "https://registry.npmjs.org/sqlite3/-/sqlite3-5.1.6.tgz",
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+      "hasInstallScript": true,
+      "dependencies": {
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+        "node-addon-api": "^4.2.0",
+        "tar": "^6.1.11"
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+      "resolved": "https://registry.npmjs.org/ssri/-/ssri-8.0.1.tgz",
+      "integrity": "sha512-97qShzy1AiyxvPNIkLWoGua7xoQzzPjQ0HAH4B0rWKo7SZ6USuPcrUiAFrws0UH8RrbWmgq3LMTObhPIHbbBeQ==",
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       "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
@@ -744,6 +1659,62 @@
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+      "dependencies": {
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+    "node_modules/string-width": {
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
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+      "dependencies": {
+        "emoji-regex": "^8.0.0",
+        "is-fullwidth-code-point": "^3.0.0",
+        "strip-ansi": "^6.0.1"
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+      "engines": {
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+    "node_modules/strip-ansi": {
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
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+      "dependencies": {
+        "ansi-regex": "^5.0.1"
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+    "node_modules/tar": {
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+      "resolved": "https://registry.npmjs.org/tar/-/tar-6.2.0.tgz",
+      "integrity": "sha512-/Wo7DcT0u5HUV486xg675HtjNd3BXZ6xDbzsCUZPt5iw8bTQ63bP0Raut3mvro9u+CUyq7YQd8Cx55fsZXxqLQ==",
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+        "fs-minipass": "^2.0.0",
+        "minipass": "^5.0.0",
+        "minizlib": "^2.1.1",
+        "mkdirp": "^1.0.3",
+        "yallist": "^4.0.0"
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+      "engines": {
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+    "node_modules/tar/node_modules/minipass": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/minipass/-/minipass-5.0.0.tgz",
+      "integrity": "sha512-3FnjYuehv9k6ovOEbyOswadCDPX1piCfhV8ncmYtHOjuPwylVWsghTLo7rabjC3Rx5xD4HDx8Wm1xnMF7S5qFQ==",
+      "engines": {
+        "node": ">=8"
+      }
+    },
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       "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
@@ -752,6 +1723,11 @@
         "node": ">=0.6"
       }
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+    "node_modules/tr46": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+      "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw=="
+    },
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       "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
@@ -769,6 +1745,24 @@
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     },
+    "node_modules/unique-filename": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/unique-filename/-/unique-filename-1.1.1.tgz",
+      "integrity": "sha512-Vmp0jIp2ln35UTXuryvjzkjGdRyf9b2lTXuSYUiPmzRcl3FDtYqAwOnTJkAngD9SWhnoJzDbTKwaOrZ+STtxNQ==",
+      "optional": true,
+      "dependencies": {
+        "unique-slug": "^2.0.0"
+      }
+    },
+    "node_modules/unique-slug": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/unique-slug/-/unique-slug-2.0.2.tgz",
+      "integrity": "sha512-zoWr9ObaxALD3DOPfjPSqxt4fnZiWblxHIgeWqW8x7UqDzEtHEQLzji2cuJYQFCU6KmoJikOYAZlrTHHebjx2w==",
+      "optional": true,
+      "dependencies": {
+        "imurmurhash": "^0.1.4"
+      }
+    },
     "node_modules/unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
@@ -777,6 +1771,11 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
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+    },
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       "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
@@ -793,6 +1792,48 @@
         "node": ">= 0.8"
       }
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+    "node_modules/webidl-conversions": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+      "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ=="
+    },
+    "node_modules/whatwg-url": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
+      "integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==",
+      "dependencies": {
+        "tr46": "~0.0.3",
+        "webidl-conversions": "^3.0.0"
+      }
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+    "node_modules/which": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+      "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
+      "optional": true,
+      "dependencies": {
+        "isexe": "^2.0.0"
+      },
+      "bin": {
+        "node-which": "bin/node-which"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    },
+    "node_modules/wide-align": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.5.tgz",
+      "integrity": "sha512-eDMORYaPNZ4sQIuuYPDHdQvf4gyCF9rEEV/yPxGfwPkRodwEgiMUUXTx/dex+Me0wxx53S+NgUHaP7y3MGlDmg==",
+      "dependencies": {
+        "string-width": "^1.0.2 || 2 || 3 || 4"
+      }
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
+    },
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       "resolved": "https://registry.npmjs.org/ws/-/ws-8.11.0.tgz",
@@ -812,6 +1853,11 @@
           "optional": true
         }
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+    },
+    "node_modules/yallist": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
+      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A=="
     }
   }
 }
diff --git a/package.json b/package.json
index ad2bbf7..89c02cf 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,10 @@
   "author": "ME",
   "license": "ISC",
   "dependencies": {
+    "@socket.io/cluster-adapter": "^0.2.2",
     "express": "^4.18.2",
-    "socket.io": "^4.7.2"
+    "socket.io": "^4.7.2",
+    "sqlite": "^5.0.1",
+    "sqlite3": "^5.1.6"
   }
 }