diff options
Diffstat (limited to 'mkarchroot.in')
| -rw-r--r-- | mkarchroot.in | 197 |
1 files changed, 40 insertions, 157 deletions
diff --git a/mkarchroot.in b/mkarchroot.in index d11c1e0..68db64c 100644 --- a/mkarchroot.in +++ b/mkarchroot.in @@ -12,89 +12,36 @@ m4_include(lib/common.sh) CHROOT_VERSION='v3' -MODE='m' -NOCOPY='n' -NONETWORK='n' - working_dir='' -APPNAME=$(basename "${0}") - -# usage: usage <exitvalue> usage() { - echo "Usage: ${APPNAME} [options] working-dir [exta-arguments]" + echo "Usage: ${0##*/} [options] working-dir [package-list | app]" echo ' options:' echo ' -C <file> Location of a pacman config file' echo ' -M <file> Location of a makepkg config file' - echo ' -n Do not copy config files into the chroot' echo ' -c <dir> Set pacman cache' - echo ' -N Disable networking in the chroot' - echo ' modes:' - echo ' -m Make a new chroot in working-dir with packages' - echo ' "extra-arguments" installed.' - echo ' This is the default mode.' - echo ' -r Run the command "extra-arguments" within the chroot' - echo ' -u Update the chroot via pacman' - echo ' -h Print this message' - - exit ${1-1} + echo ' -h This message' + exit 1 } -################################################################################ - -while getopts 'C:M:nc:Nmruh' arg; do - case "${arg}" in +while getopts 'hC:M:c:' arg; do + case "$arg" in C) pac_conf="$OPTARG" ;; M) makepkg_conf="$OPTARG" ;; - n) NOCOPY='y' ;; c) cache_dir="$OPTARG" ;; - N) NONETWORK='y' ;; - - m|r|u) MODE="$arg" ;; - h) usage 0 ;; - - *) error "invalid argument '${arg}'"; usage ;; + h|?) usage ;; + *) error "invalid argument '$arg'"; usage ;; esac done - shift $(($OPTIND - 1)) -case $MODE in - m) - case $# in - 0) die 'You must specify a directory and one or more packages.' ;; - 1) die 'You must specify one or more packages.' ;; - esac - ;; - r) - case $# in - 0) die 'You must specify a directory and a command.' ;; - 1) die 'You must specify a command.' ;; - esac - ;; - u) - case $# in - 0) die 'You must specify a directory.' ;; - 1) : ;; - 2) die 'Extra arguments' ;; - esac - ;; -esac - -working_dir="$(readlink -f "${1}")" -shift 1 -[[ -z $working_dir ]] && die 'Please specify a working directory.' +(( $EUID != 0 )) && die 'This script must be run as root.' +(( $# < 2 )) && die 'You must specify a directory and one or more packages.' -if [[ $MODE == u ]]; then - MODE=r - set -- pacman -Syu --noconfirm -fi - -################################################################################ +working_dir="$(readlink -f $1)" +shift 1 -if (( $EUID != 0 )); then - die 'This script must be run as root.' -fi +[[ -z $working_dir ]] && die 'Please specify a working directory.' if [[ -z $cache_dir ]]; then cache_dirs=($(pacman -v $cache_conf 2>&1 | grep '^Cache Dirs:' | sed 's/Cache Dirs:\s*//g')) @@ -102,111 +49,47 @@ else cache_dirs=(${cache_dir}) fi -host_mirror=$(pacman -Sddp extra/devtools 2>/dev/null | sed -E 's#(.*/)extra/os/.*#\1$repo/os/$arch#') -if echo "${host_mirror}" | grep -q 'file://'; then - host_mirror_path=$(echo "${host_mirror}" | sed -E 's#file://(/.*)/\$repo/os/\$arch#\1#g') -fi - # {{{ functions -build_mount_args() { - local p - declare -g mount_args=() - - if [[ -n $host_mirror_path ]]; then - printf -v p '%q' "$host_mirror_path" - mount_args+=(--bind-ro="$p") - fi - - printf -v p '%q' "${cache_dirs[0]}" - mount_args+=(--bind="$p") - - for cache_dir in ${cache_dirs[@]:1}; do - printf -v p '%q' "$cache_dir" - mount_args+=(--bind-ro="$p") - done -} - -copy_hostconf () { - cp -a /etc/pacman.d/gnupg "${working_dir}/etc/pacman.d" - echo "Server = ${host_mirror}" > ${working_dir}/etc/pacman.d/mirrorlist - - if [[ -n $pac_conf && $NOCOPY = 'n' ]]; then - cp ${pac_conf} ${working_dir}/etc/pacman.conf - fi - - if [[ -n $makepkg_conf && $NOCOPY = 'n' ]]; then - cp ${makepkg_conf} ${working_dir}/etc/makepkg.conf - fi - - sed -r "s|^#?\\s*CacheDir.+|CacheDir = $(echo -n ${cache_dirs[@]})|g" -i ${working_dir}/etc/pacman.conf -} - chroot_lock () { - lock_open_write 9 "${working_dir}" "Locking chroot" -} + # Only reopen the FD if it wasn't handed to us + if [[ $(readlink -f /dev/fd/9) != "${working_dir}.lock" ]]; then + exec 9>"${working_dir}.lock" + fi -chroot_run() { - local dir=$1 - shift - local nspawn_args=(-D "$dir" "${mount_args[@]}") - if [[ $NONETWORK = y ]]; then - nspawn_args+=(--private-network) + # Lock the chroot. Take note of the FD number. + if ! flock -n 9; then + stat_busy "Locking chroot" + flock 9 + stat_done fi - systemd-nspawn "${nspawn_args[@]}" -- "${@}" 2>/dev/null } - # }}} umask 0022 -if [[ $MODE == r ]]; then - # run chroot {{{ - #Sanity check - if [[ ! -f "${working_dir}/.arch-chroot" ]]; then - die "'${working_dir}' does not appear to be a Arch chroot." - elif [[ $(cat "${working_dir}/.arch-chroot") != ${CHROOT_VERSION} ]]; then - die "'${working_dir}' is not compatible with ${APPNAME} version ${CHROOT_VERSION}. Please rebuild." - fi - - chroot_lock - build_mount_args - copy_hostconf - - chroot_run "${working_dir}" "$@" - - # }}} -elif [[ $MODE == m ]]; then - # {{{ build chroot - if [[ -e $working_dir ]]; then - die "Working directory '${working_dir}' already exists" - fi - mkdir -p "${working_dir}" +[[ -e $working_dir ]] && die "Working directory '$working_dir' already exists" - if [[ "$(stat -f -c %T "${working_dir}")" == btrfs ]]; then - rmdir "${working_dir}" - if ! btrfs subvolume create "${working_dir}"; then - die "Couldn't create subvolume for '${working_dir}'" - fi - chmod 0755 "${working_dir}" - fi - - chroot_lock +mkdir -p "$working_dir" - pacargs=("${cache_dirs[@]/#/--cachedir=}") - if [[ -n $pac_conf ]]; then - pacargs+=("--config=${pac_conf}") - fi +chroot_lock - if ! pacstrap -GMcd "${working_dir}" "${pacargs[@]}" "$@"; then - die 'Failed to install all packages' +if [[ $(stat -f -c %T "$working_dir") == btrfs ]]; then + rmdir "$working_dir" + if ! btrfs subvolume create "$working_dir"; then + die "Couldn't create subvolume for '$working_dir'" fi + chmod 0755 "$working_dir" +fi - printf '%s.UTF-8 UTF-8\n' en_US de_DE > "${working_dir}/etc/locale.gen" - chroot_run "${working_dir}" locale-gen - echo 'LANG=C' > "${working_dir}/etc/locale.conf" +pacstrap -GMcd ${pac_conf:+-C "$pac_conf"} "$working_dir" \ + "${cache_dirs[@]/#/--cachedir=}" "$@" || die 'Failed to install all packages' - copy_hostconf +printf '%s.UTF-8 UTF-8\n' en_US de_DE > "$working_dir/etc/locale.gen" +echo 'LANG=C' > "$working_dir/etc/locale.conf" +echo "$CHROOT_VERSION" > "$working_dir/.arch-chroot" - echo "${CHROOT_VERSION}" > "${working_dir}/.arch-chroot" - # }}} -fi +exec arch-nspawn \ + ${pac_conf:+-C "$pac_conf"} \ + ${makepkg_conf:+-M "$makepkg_conf"} \ + ${cache_dir:+-c "$cache_dir"} \ + "$working_dir" locale-gen |