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

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+#!/bin/sh
+
+SRC_DIR=$(pwd)
+
+. ../../common.sh
+
+# Grab everything after the '=' character.
+DOWNLOAD_URL=$(grep -i UTIL_LINUX_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 util-linux source bundle file. The '-c' option allows the download to resume.
+  echo "Downloading util-linux source bundle from $DOWNLOAD_URL"
+  wget -c $DOWNLOAD_URL
+else
+  echo "Using local util-linux source bundle $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE"
+fi
+
+# Delete folder with previously extracted util-linux.
+echo "Removing util-linux work area. This may take a while..."
+rm -rf $WORK_DIR/overlay/util_linux
+mkdir $WORK_DIR/overlay/util_linux
+
+# Extract util-linux to folder 'work/overlay/util_linux'.
+# Full path will be something like 'work/overlay/util_linux/util-linux-2.31'.
+tar -xvf $ARCHIVE_FILE -C $WORK_DIR/overlay/util_linux
+
+cd $SRC_DIR
+

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

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+#!/bin/bash
+
+SRC_DIR=$(pwd)
+
+. ../../common.sh
+
+cd $WORK_DIR/overlay/util_linux
+
+DESTDIR="$PWD/util_linux_installed"
+
+# Change to the util-linux source directory which ls finds, e.g. 'util-linux-2.31'.
+cd $(ls -d util-linux-*)
+
+echo "Preparing util-linux work area. This may take a while..."
+make -j $NUM_JOBS clean
+
+rm -rf $DESTDIR
+
+echo "Configuring util-linux..."
+CFLAGS="$CFLAGS" ./configure \
+  --prefix=/usr \
+  --disable-graphics \
+  --disable-utf8 \
+  --without-ipv6 \
+  --without-ssl \
+  --without-zlib \
+  --without-x
+
+echo "Building util-linux..."
+make -j $NUM_JOBS
+
+echo "Installing util-linux..."
+make -j $NUM_JOBS install DESTDIR=$DESTDIR
+
+echo "Reducing util-linux size..."
+strip -g $DESTDIR/usr/bin/*
+
+ROOTFS="$WORK_DIR/src/minimal_overlay/rootfs"
+
+mkdir -p "$ROOTFS/usr/bin"
+cp -r $DESTDIR/usr/bin/* $ROOTFS/usr/bin/
+
+echo "util-linux has been installed."
+
+cd $SRC_DIR
+

src/minimal_overlay/bundles/util_linux/bundle.sh

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+#!/bin/sh
+
+SRC_DIR=$(pwd)
+
+time sh 01_get.sh
+time sh 02_build.sh
+
+cd $SRC_DIR
+