Add coreutils overlay bundle

src/.config

@@ -47,6 +47,12 @@ SYSLINUX_SOURCE_URL=http://kernel.org/pub/linux/utils/boot/syslinux/syslinux-6.0
 #
 CLOUD_FOUNDRY_CLI_URL=http://cli.run.pivotal.io/stable?release=linux64-binary&source=github
 
+# You can find the latest coreutils source bundles here:
+#
+#   http://ftp.gnu.org/gnu/coreutils/
+#
+COREUTILS_SOURCE_URL=http://ftp.gnu.org/gnu/coreutils/coreutils-8.28.tar.xz
+
 # You can find the latest Dropbear source bundles here:
 #
 #   http://matt.ucc.asn.au/dropbear/dropbear.html
@@ -200,6 +206,7 @@ COPY_SOURCE_ISO=true
 #
 # glibc_full - all core GNU C libraries (useful if other software is included).
 # cf_cli     - CLoud Foundry CLI (command line interface).
+# coreutils  - set of commonly used GNU executable utilities.
 # dhcp       - DHCP and DNS functionality.
 # dropbear   - SSH server and client.
 # felix      - Apache Felix OSGi framework.
@@ -217,7 +224,7 @@ COPY_SOURCE_ISO=true
 #
 # Refer to the README file for more information.
 #
-#OVERLAY_BUNDLES=glibc_full,cf_cli,dhcp,dropbear,felix,java,links,lua,mll_utils,nano,ncurses,nweb,static_get,util_linux,zlib
+#OVERLAY_BUNDLES=glibc_full,cf_cli,coreutils,dhcp,dropbear,felix,java,links,lua,mll_utils,nano,ncurses,nweb,static_get,util_linux,zlib
 #OVERLAY_BUNDLES=glibc_full,dhcp,felix,links,openjdk,zlib
 
 # This property enables the standard penguin boot logo in the upper left corner

src/README

@@ -27,6 +27,8 @@ Currently available overlay bundles:
 
                This overlay bundle depends on the GLIBC build process.
 
+* coreutils  - set of commonly used GNU executable utilities.
+
 * dhcp       - DHCP and DNS functionality to connect to the Internet.
 
 * Dropbear   - SSH server/client. Requires ~1MB additional space. The build

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

@@ -0,0 +1,41 @@
+#!/bin/sh
+
+SRC_DIR=$(pwd)
+
+. ../../common.sh
+
+# Grab everything after the '=' character.
+DOWNLOAD_URL=$(grep -i COREUTILS_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 coreutils source bundle file. The '-c' option allows the download to resume.
+  echo "Downloading coreutils source bundle from $DOWNLOAD_URL"
+  wget -c $DOWNLOAD_URL
+else
+  echo "Using local coreutils source bundle $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE"
+fi
+
+# Delete folder with previously extracted coreutils.
+echo "Removing coreutils work area. This may take a while..."
+rm -rf $WORK_DIR/overlay/coreutils
+mkdir $WORK_DIR/overlay/coreutils
+
+# Extract coreutils to folder 'work/overlay/coreutils'.
+# Full path will be something like 'work/overlay/coreutils/coreutils-8.28'.
+tar -xvf $ARCHIVE_FILE -C $WORK_DIR/overlay/coreutils
+
+cd $SRC_DIR
+

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

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+SRC_DIR=$(pwd)
+
+. ../../common.sh
+
+cd $WORK_DIR/overlay/coreutils
+
+DESTDIR="$PWD/coreutils_installed"
+
+# Change to the coreutils source directory which ls finds, e.g. 'coreutils-8.28'.
+cd $(ls -d coreutils-*)
+
+echo "Preparing coreutils work area. This may take a while..."
+make -j $NUM_JOBS clean
+
+rm -rf $DESTDIR
+
+echo "Configuring coreutils..."
+CFLAGS="$CFLAGS" ./configure \
+  --prefix=/usr
+
+echo "Building coreutils..."
+make -j $NUM_JOBS
+
+echo "Installing coreutils..."
+make -j $NUM_JOBS install DESTDIR=$DESTDIR
+
+echo "Reducing coreutils size..."
+strip -g $DESTDIR/usr/bin/*
+
+ROOTFS="$WORK_DIR/src/minimal_overlay/rootfs"
+
+cp -r $DESTDIR/* $ROOTFS
+
+echo "coreutils has been installed."
+
+cd $SRC_DIR

src/minimal_overlay/bundles/coreutils/bundle.sh

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