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#!/bin/bash
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# 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.
m4_include(lib/common.sh)
CHROOT_VERSION='v3'
working_dir=''
usage() {
echo "Usage: ${0##*/} [options] working-dir [systemd-nspawn arguments]"
echo "A wrapper around systemd-nspawn. Provides support for pacman."
echo
echo ' options:'
echo ' -C <file> Location of a pacman config file'
echo ' -M <file> Location of a makepkg config file'
echo ' -c <dir> Set pacman cache'
echo ' -h This message'
exit 1
}
orig_argv=("$@")
while getopts 'hC:M:c:' arg; do
case "$arg" in
C) pac_conf="$OPTARG" ;;
M) makepkg_conf="$OPTARG" ;;
c) cache_dir="$OPTARG" ;;
h|?) usage ;;
*) error "invalid argument '%s'" "$arg"; usage ;;
esac
done
shift $(($OPTIND - 1))
(( $# < 1 )) && die 'You must specify a directory.'
check_root "$0" "${orig_argv[@]}"
working_dir=$(readlink -f "$1")
shift 1
[[ -z $working_dir ]] && die 'Please specify a working directory.'
if [[ -z $cache_dir ]]; then
cache_dirs=($(pacman -v 2>&1 | grep '^Cache Dirs:' | sed 's/Cache Dirs:\s*//g'))
else
cache_dirs=("$cache_dir")
fi
host_mirror=$(pacman -Sddp extra/devtools 2>/dev/null | sed -r 's#(.*/)extra/os/.*#\1$repo/os/$arch#')
[[ $host_mirror == *file://* ]] && host_mirror_path=$(echo "$host_mirror" | sed -r 's#file://(/.*)/\$repo/os/\$arch#\1#g')
# {{{ functions
build_mount_args() {
declare -g mount_args=()
if [[ -n $host_mirror_path ]]; then
mount_args+=(--bind-ro="$host_mirror_path")
fi
mount_args+=(--bind="${cache_dirs[0]}")
for cache_dir in ${cache_dirs[@]:1}; do
mount_args+=(--bind-ro="$cache_dir")
done
}
copy_hostconf () {
cp -a /etc/pacman.d/gnupg "$working_dir/etc/pacman.d"
echo "Server = $host_mirror" >"$working_dir/etc/pacman.d/mirrorlist"
[[ -n $pac_conf ]] && cp $pac_conf "$working_dir/etc/pacman.conf"
[[ -n $makepkg_conf ]] && cp $makepkg_conf "$working_dir/etc/makepkg.conf"
sed -r "s|^#?\\s*CacheDir.+|CacheDir = $(echo -n ${cache_dirs[@]})|g" -i "$working_dir/etc/pacman.conf"
}
# }}}
umask 0022
# Sanity check
if [[ ! -f "$working_dir/.arch-chroot" ]]; then
die "'%s' does not appear to be an Arch chroot." "$working_dir"
elif [[ $(cat "$working_dir/.arch-chroot") != $CHROOT_VERSION ]]; then
die "chroot '%s' is not at version %s. Please rebuild." "$working_dir" "$CHROOT_VERSION"
fi
build_mount_args
copy_hostconf
eval $(grep '^CARCH=' "$working_dir/etc/makepkg.conf")
if [[ $CARCH = i686 ]]; then
exec ${CARCH:+setarch "$CARCH"} systemd-nspawn -q \
-D "$working_dir" \
--register=no \
"${mount_args[@]}" \
"$@"
else
exec systemd-nspawn -q \
-D "$working_dir" \
--register=no \
"${mount_args[@]}" \
"$@"
fi
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