#!/bin/bash # License: GNU GPLv2 # # 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) m4_include(lib/archroot.sh) # umask might have been changed in /etc/profile # ensure that sane default is set again umask 0022 working_dir='' files=() mount_args=() usage() { echo "Usage: ${0##*/} [options] working-dir [systemd-nspawn arguments]" echo "A wrapper around systemd-nspawn. Provides support for pacman." echo echo ' options:' echo ' -C <file> Location of a pacman config file' echo ' -M <file> Location of a makepkg config file' echo ' -c <dir> Set pacman cache' echo ' -f <file> Copy file from the host to the chroot' echo ' -s Do not run setarch' echo ' -h This message' exit 1 } while getopts 'hC:M:c:f:s' arg; do case "$arg" in C) pac_conf="$OPTARG" ;; M) makepkg_conf="$OPTARG" ;; c) cache_dirs+=("$OPTARG") ;; f) files+=("$OPTARG") ;; s) nosetarch=1 ;; h|?) usage ;; *) error "invalid argument '%s'" "$arg"; usage ;; esac done shift $((OPTIND - 1)) (( $# < 1 )) && die 'You must specify a directory.' check_root working_dir=$(readlink -f "$1") shift 1 [[ -z $working_dir ]] && die 'Please specify a working directory.' pacconf_cmd=$(command -v pacman-conf || command -v pacconf) if (( ${#cache_dirs[@]} == 0 )); then mapfile -t cache_dirs < <($pacconf_cmd --config "${pac_conf:-$working_dir/etc/pacman.conf}" CacheDir) fi # shellcheck disable=2016 host_mirrors=($($pacconf_cmd --repo extra Server 2> /dev/null | sed -r 's#(.*/)extra/os/.*#\1$repo/os/$arch#')) for host_mirror in "${host_mirrors[@]}"; do if [[ $host_mirror == *file://* ]]; then host_mirror=$(echo "$host_mirror" | sed -r 's#file://(/.*)/\$repo/os/\$arch#\1#g') in_array "$host_mirror" "${cache_dirs[@]}" || cache_dirs+=("$host_mirror") fi done while read -r line; do mapfile -t lines < <($pacconf_cmd --config "${pac_conf:-$working_dir/etc/pacman.conf}" \ --repo $line Server | sed -r 's#(.*/)[^/]+/os/.+#\1#') for line in "${lines[@]}"; do if [[ $line = file://* ]]; then line=${line#file://} in_array "$line" "${cache_dirs[@]}" || cache_dirs+=("$line") fi done done < <($pacconf_cmd --config "${pac_conf:-$working_dir/etc/pacman.conf}" --repo-list) mount_args+=("--bind=${cache_dirs[0]//:/\\:}") for cache_dir in "${cache_dirs[@]:1}"; do mount_args+=("--bind-ro=${cache_dir//:/\\:}") done # {{{ functions copy_hostconf () { unshare --fork --pid gpg --homedir "$working_dir"/etc/pacman.d/gnupg/ --no-permission-warning --quiet --batch --import --import-options import-local-sigs "$(pacman-conf GpgDir)"/pubring.gpg >/dev/null 2>&1 pacman-key --gpgdir "$working_dir"/etc/pacman.d/gnupg/ --import-trustdb "$(pacman-conf GpgDir)" >/dev/null 2>&1 printf 'Server = %s\n' "${host_mirrors[@]}" >"$working_dir/etc/pacman.d/mirrorlist" [[ -n $pac_conf ]] && cp "$pac_conf" "$working_dir/etc/pacman.conf" [[ -n $makepkg_conf ]] && cp "$makepkg_conf" "$working_dir/etc/makepkg.conf" local file for file in "${files[@]}"; do mkdir -p "$(dirname "$working_dir$file")" cp -T "$file" "$working_dir$file" done sed -r "s|^#?\\s*CacheDir.+|CacheDir = ${cache_dirs[*]}|g" -i "$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" "$CHROOT_VERSION" fi copy_hostconf eval "$(grep -a '^CARCH=' "$working_dir/etc/makepkg.conf")" [[ -z $nosetarch ]] || unset CARCH exec ${CARCH:+setarch "$CARCH"} systemd-nspawn -q \ -D "$working_dir" \ -E "PATH=/usr/local/sbin:/usr/local/bin:/usr/bin" \ --register=no --keep-unit --as-pid2 \ "${mount_args[@]}" \ "$@"