142 lines
4.3 KiB
Bash
142 lines
4.3 KiB
Bash
#!/bin/bash
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# License: GNU GPLv2
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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m4_include(lib/common.sh)
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m4_include(lib/archroot.sh)
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# umask might have been changed in /etc/profile
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# ensure that sane default is set again
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umask 0022
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working_dir=''
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files=()
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mount_args=()
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usage() {
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echo "Usage: ${0##*/} [options] working-dir [systemd-nspawn arguments]"
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echo "A wrapper around systemd-nspawn. Provides support for pacman."
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echo
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echo ' options:'
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echo ' -C <file> Location of a pacman config file'
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echo ' -M <file> Location of a makepkg config file'
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echo ' -c <dir> Set pacman cache'
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echo ' -f <file> Copy file from the host to the chroot'
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echo ' -s Do not run setarch'
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echo ' -h This message'
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exit 1
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}
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while getopts 'hC:M:c:f:s' arg; do
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case "$arg" in
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C) pac_conf="$OPTARG" ;;
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M) makepkg_conf="$OPTARG" ;;
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c) cache_dirs+=("$OPTARG") ;;
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f) files+=("$OPTARG") ;;
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s) nosetarch=1 ;;
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h|?) usage ;;
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*) error "invalid argument '%s'" "$arg"; usage ;;
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esac
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done
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shift $((OPTIND - 1))
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(( $# < 1 )) && die 'You must specify a directory.'
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check_root
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working_dir=$(readlink -f "$1")
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shift 1
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[[ -z $working_dir ]] && die 'Please specify a working directory.'
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pacconf_cmd=$(command -v pacman-conf || command -v pacconf)
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if (( ${#cache_dirs[@]} == 0 )); then
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mapfile -t cache_dirs < <($pacconf_cmd --config "${pac_conf:-$working_dir/etc/pacman.conf}" CacheDir)
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fi
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# shellcheck disable=2016
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host_mirrors=($($pacconf_cmd --repo extra Server 2> /dev/null | sed -r 's#(.*/)extra/os/.*#\1$repo/os/$arch#'))
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for host_mirror in "${host_mirrors[@]}"; do
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if [[ $host_mirror == *file://* ]]; then
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host_mirror=$(echo "$host_mirror" | sed -r 's#file://(/.*)/\$repo/os/\$arch#\1#g')
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for m in "$host_mirror"/pool/*/; do
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in_array "$m" "${cache_dirs[@]}" || cache_dirs+=("$m")
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done
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fi
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done
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while read -r line; do
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mapfile -t lines < <($pacconf_cmd --config "${pac_conf:-$working_dir/etc/pacman.conf}" \
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--repo $line Server | sed -r 's#(.*/)[^/]+/os/.+#\1#')
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for line in "${lines[@]}"; do
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if [[ $line = file://* ]]; then
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line=${line#file://}
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in_array "$line" "${cache_dirs[@]}" || cache_dirs+=("$line")
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fi
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done
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done < <($pacconf_cmd --config "${pac_conf:-$working_dir/etc/pacman.conf}" --repo-list)
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mount_args+=("--bind=${cache_dirs[0]//:/\\:}")
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for cache_dir in "${cache_dirs[@]:1}"; do
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mount_args+=("--bind-ro=${cache_dir//:/\\:}")
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done
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# {{{ functions
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copy_hostconf () {
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unshare --fork --pid gpg --homedir "$working_dir"/etc/pacman.d/gnupg/ --no-permission-warning --quiet --batch --import --import-options import-local-sigs "$(pacman-conf GpgDir)"/pubring.gpg >/dev/null 2>&1
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pacman-key --gpgdir "$working_dir"/etc/pacman.d/gnupg/ --import-trustdb "$(pacman-conf GpgDir)" >/dev/null 2>&1
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#printf 'Server = %s\n' "${host_mirrors[@]}" >"$working_dir/etc/pacman.d/mirrorlist"
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[[ -n $pac_conf ]] && cp "$pac_conf" "$working_dir/etc/pacman.conf"
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[[ -n $makepkg_conf ]] && cp "$makepkg_conf" "$working_dir/etc/makepkg.conf"
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local file
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for file in "${files[@]}"; do
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mkdir -p "$(dirname "$working_dir$file")"
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cp -T "$file" "$working_dir$file"
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done
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sed -r "s|^#?\\s*CacheDir.+|CacheDir = ${cache_dirs[*]}|g" -i "$working_dir/etc/pacman.conf"
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}
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# }}}
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umask 0022
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# Sanity check
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if [[ ! -f "$working_dir/.arch-chroot" ]]; then
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die "'%s' does not appear to be an Arch chroot." "$working_dir"
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elif [[ $(cat "$working_dir/.arch-chroot") != "$CHROOT_VERSION" ]]; then
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die "chroot '%s' is not at version %s. Please rebuild." "$working_dir" "$CHROOT_VERSION"
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fi
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copy_hostconf
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eval "$(grep -a '^CARCH=' "$working_dir/etc/makepkg.conf")"
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[[ -z $nosetarch ]] || unset CARCH
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for p in echo exec; do
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[[ $p == echo ]] && msg "Entering chroot \"$working_dir\" via:"
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"$p" systemd-nspawn -q \
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-D "$working_dir" \
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-E "PATH=/usr/local/sbin:/usr/local/bin:/usr/bin" \
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--register=no \
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--as-pid2 \
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--rlimit=NOFILE=10000 \
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--resolv-conf=copy-host \
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"${mount_args[@]}" \
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"$@"
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done
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