Merge pull request #89 from TechnologyClassroom/ncurses

ncurses overlay

src/.config

@@ -73,6 +73,12 @@ FELIX_SOURCE_URL=http://archive.apache.org/dist/felix/org.apache.felix.main.dist
 #
 LUA_SOURCE_URL=https://www.lua.org/ftp/lua-5.3.4.tar.gz
 
+# You can find the latest ncurses archives here:
+#
+#   https://ftp.gnu.org/pub/gnu/ncurses/
+#
+NCURSES_SOURCE_URL=https://ftp.gnu.org/pub/gnu/ncurses/ncurses-6.0.tar.gz
+
 # You can find the latest static-get shell script here:
 #
 #   http://s.minos.io/s
@@ -188,6 +194,7 @@ COPY_SOURCE_ISO=true
 # openjdk    - installs Open JDK. All operations are automated.
 # felix      - Apache Felix OSGi framework.
 # mll_utils  - set of executable utilities (mll-*).
+# ncurses    - "GUI-like" API that runs within a terminal emulator
 # lua        - scripting language
 # static_get - portable binaries for Linux (http://s.minos.io)
 # cf_cli     - CLoud Foundry CLI (command line interface)
@@ -198,7 +205,7 @@ COPY_SOURCE_ISO=true
 #
 # Refer to the README file for more information.
 #
-#OVERLAY_BUNDLES=glibc_full,links,dropbear,java,felix,mll_utils,lua,static_get,cf_cli,nweb,dhcp
+#OVERLAY_BUNDLES=glibc_full,links,dropbear,java,felix,mll_utils,lua,static_get,cf_cli,ncurses,util_linux,nweb,dhcp
 #OVERLAY_BUNDLES=dhcp,glibc_full,zlib,openjdk,felix,links
 
 # This property enables the standard penguin boot logo in the upper left corner

src/README

@@ -52,7 +52,7 @@ Currently available overlay bundles:
                to the "JAVA_ARCHIVE" property in the ".config" file for more
                detailed information.
 
-               This overlay bundle requires GLIBC.
+               This overlay bundle requires GLIBC. JDK 9 requires ZLIB. 
 
 * Open JDK   - The open source JDK. No need for manual steps.
 
@@ -72,6 +72,8 @@ Currently available overlay bundles:
 * Lua        - The Lua Scripting Language 5.3. Requires ~ 800kb additional
                space. Use the "lua" command to run an interactive lua interpreter
 
+* ncurses    - 'GUI-like' API that runs within a terminal emulator
+
 * nweb       - nweb is a very small and easy to use webserver, it is run automatically on port 80
                to portforward port 80 from the guest (minimal) to port 8080 on the host add
                '-net nic,model=e1000 -net user,hostfwd=tcp::8080-:80' to 'cmd' in qemu.sh
@@ -81,6 +83,8 @@ Currently available overlay bundles:
 * util_linux - util-linux is a standard package distributed by the Linux Kernel
                Organization similar to busybox or GNU Core Utils.
 
+               Some packages in this overlay bundle require ncurses.
+
 ###   ###   ###
 
 I only provide the build scripts. It's entirely up to you to configure and

src/minimal_overlay/bundles/ncurses/01_get.sh

@@ -0,0 +1,40 @@
+#!/bin/sh
+
+SRC_DIR=$(pwd)
+
+. ../../common.sh
+
+# Grab everything after the '=' character.
+DOWNLOAD_URL=$(grep -i NCURSES_SOURCE_URL $MAIN_SRC_DIR/.config | cut -f2 -d'=')
+
+# Grab everything after the last '/' character.
+ARCHIVE_FILE=${DOWNLOAD_URL##*/}
+
+# Read the 'USE_LOCAL_SOURCE' property from '.config'
+USE_LOCAL_SOURCE="$(grep -i USE_LOCAL_SOURCE $MAIN_SRC_DIR/.config | cut -f2 -d'=')"
+
+if [ "$USE_LOCAL_SOURCE" = "true" -a ! -f $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE  ] ; then
+  echo "Source bundle $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE is missing and will be downloaded."
+  USE_LOCAL_SOURCE="false"
+fi
+
+cd $MAIN_SRC_DIR/source/overlay
+
+if [ ! "$USE_LOCAL_SOURCE" = "true" ] ; then
+  # Downloading ncurses source bundle file. The '-c' option allows the download to resume.
+  echo "Downloading ncurses source bundle from $DOWNLOAD_URL"
+  wget -c $DOWNLOAD_URL
+else
+  echo "Using local ncurses source bundle $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE"
+fi
+
+# Delete folder with previously extracted ncurses.
+echo "Removing ncurses work area. This may take a while..."
+rm -rf $WORK_DIR/overlay/ncurses
+mkdir $WORK_DIR/overlay/ncurses
+
+# Extract ncurses to folder 'work/overlay/ncurses'.
+# Full path will be something like 'work/overlay/ncurses/ncurses-6.0'.
+tar -xvf $ARCHIVE_FILE -C $WORK_DIR/overlay/ncurses
+
+cd $SRC_DIR

src/minimal_overlay/bundles/ncurses/02_build.sh

@@ -0,0 +1,60 @@
+#!/bin/bash
+
+SRC_DIR=$(pwd)
+
+. ../../common.sh
+
+cd $WORK_DIR/overlay/ncurses
+
+DESTDIR="$PWD/ncurses_installed"
+
+# Change to the ncurses source directory which ls finds, e.g. 'ncurses-6.0'.
+cd $(ls -d ncurses-*)
+
+echo "Preparing ncurses work area. This may take a while..."
+make -j $NUM_JOBS clean
+
+rm -rf $DESTDIR
+
+# Remove static library
+sed -i '/LIBTOOL_INSTALL/d' c++/Makefile.in
+# http://www.linuxfromscratch.org/lfs/view/development/chapter06/ncurses.html
+
+# Configure Ncurses
+echo "Configuring Ncurses..."
+./configure \
+    --prefix=/usr \
+    --with-termlib \
+    --with-shared \
+    --with-terminfo-dirs=/lib/terminfo \
+    --with-default-terminfo-dirs=/lib/terminfo \
+    --without-normal \
+    --without-debug \
+    --without-cxx-binding \
+    --with-abi-version=5 \
+    CFLAGS="-Os -s -fno-stack-protector -U_FORTIFY_SOURCE" \
+    CPPFLAGS="-P"
+
+# Most configuration switches are from AwlsomeAlex
+# https://github.com/AwlsomeAlex/AwlsomeLinux/blob/59d59730703b058081a2371076a807590cacb31e/src/overlay_ncurses.sh
+
+# CPPFLAGS fixes a bug with Ubuntu 16.04
+# https://trac.sagemath.org/ticket/19762
+
+echo "Building ncurses..."
+make -j $NUM_JOBS
+
+echo "Installing ncurses..."
+make -j $NUM_JOBS install DESTDIR=$DESTDIR
+
+echo "Reducing ncurses size..."
+strip -g $DESTDIR/usr/bin/*
+
+ROOTFS="$WORK_DIR/src/minimal_overlay/rootfs"
+
+cp -r $DESTDIR/usr/* $ROOTFS
+
+echo "ncurses has been installed."
+
+cd $SRC_DIR
+

src/minimal_overlay/bundles/ncurses/bundle.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+SRC_DIR=$(pwd)
+
+time sh 01_get.sh
+time sh 02_build.sh
+
+cd $SRC_DIR
+