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#!/bin/bash
# linaro-hwpack-install - Install a Linaro Hardware Pack.
# This script is meant to run inside a chroot containing nothing other than
# ubuntu-minimal, so it must not depend on anything that's not in
# there.
# TODO: When upgrading to a newer hwpack, make sure packages and apt sources
# that are no longer needed are removed.
# Copyright 2010 Linaro
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3 as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
set -e
LOCKFILE="/var/lock/hwpack"
TEMP_DIR=$(mktemp -d)
HWPACK_DIR="${TEMP_DIR}/unpacked"
INSTALL_LATEST="no"
SOURCES_LIST_FILE="${TEMP_DIR}/sources.list"
APT_GET_OPTIONS="Dir::Etc::SourceList=${SOURCES_LIST_FILE}"
die() {
echo -e "$@"
exit 1
}
usage_msg="Usage: $(basename $0) [--install-latest] HWPACK_TARBALL"
if [ $# -eq 0 ]; then
die $usage_msg
elif [ $# -eq 1 ]; then
HWPACK_TARBALL=$1
elif [ $# -eq 2 ]; then
if [ $1 != "--install-latest" ]; then
die "Unknown argument: $1 \n$usage_msg"
fi
INSTALL_LATEST="yes"
HWPACK_TARBALL=$2
else
die $usage_msg
fi
# Try to acquire fd #9 (i.e. /var/lock/hwpack) for 2 seconds.
# Using 9 as the file descriptor because of https://launchpad.net/bugs/249620
exec 9>$LOCKFILE
flock -w2 9 || die "Could not acquire lock: $LOCKFILE"
cleanup() {
# Ensure our temp dir and apt sources are removed.
echo -n "Cleaning up ..."
rm -rf $TEMP_DIR
sudo apt-get update -qq
echo "Done"
}
# From now on we'll be making changes to the system, so we need to clean
# things up when the script exits.
trap cleanup EXIT
# This creates all the directories we need.
mkdir -p "$HWPACK_DIR"
# Unpack the hwpack tarball. We don't download it here because the chroot may
# not contain any tools that would allow us to do that.
echo -n "Unpacking hardware pack ..."
tar zxf "$HWPACK_TARBALL" -C "$HWPACK_DIR"
echo "Done"
# Check the architecture of the hwpack matches that of the host system.
HWPACK_ARCH=`grep ARCHITECTURE "${HWPACK_DIR}/metadata" | cut -d "=" -f2`
[ "$HWPACK_ARCH" == `dpkg --print-architecture` ] || \
die "Hardware pack architecture ($HWPACK_ARCH) does not match the host's architecture"
# Install the apt sources that contain the packages we need.
for filename in $(ls "${HWPACK_DIR}"/sources.list.d/); do
file="${HWPACK_DIR}"/sources.list.d/$filename
should_install=0
while read line; do
# Only install files that have at least one line not present in the
# existing sources lists.
grep -q "$line" /etc/apt/sources.list.d/* /etc/apt/sources.list \
|| should_install=1
done < $file
if [ $should_install -eq 1 ]; then
sudo cp $file /etc/apt/sources.list.d/hwpack.$filename
fi
done
# Import the OpenPGP keys for the files installed above.
for filename in $(ls "${HWPACK_DIR}"/sources.list.d.gpg/); do
file="${HWPACK_DIR}"/sources.list.d.gpg/$filename
sudo apt-key add $file
done
# Add one extra apt source for the packages included in the hwpack and make
# sure it's the first on the list of sources so that it gets precedence over
# the others.
echo "deb file:${HWPACK_DIR}/pkgs ./" > "$SOURCES_LIST_FILE"
cat /etc/apt/sources.list >> "$SOURCES_LIST_FILE"
sudo apt-get -o "$APT_GET_OPTIONS" update -qq
echo -n "Installing packages ..."
if [ "$INSTALL_LATEST" == "no" ]; then
packages=`sed 's/=.*//' "${HWPACK_DIR}"/manifest`
else
packages=`cat "${HWPACK_DIR}"/manifest`
fi
sudo apt-get -o "$APT_GET_OPTIONS" install $packages
echo "Done"
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