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-rw-r--r--mkarchroot.in96
1 files changed, 64 insertions, 32 deletions
diff --git a/mkarchroot.in b/mkarchroot.in
index 454d789..8cf9474 100644
--- a/mkarchroot.in
+++ b/mkarchroot.in
@@ -15,6 +15,7 @@ CHROOT_VERSION='v2'
FORCE='n'
RUN=''
NOCOPY='n'
+NONETWORK='n'
working_dir=''
@@ -22,50 +23,87 @@ APPNAME=$(basename "${0}")
# usage: usage <exitvalue>
usage() {
- echo "Usage: ${APPNAME} [options] working-dir [package-list | app]"
+ echo "Usage: ${APPNAME} [options] working-dir [action]"
echo ' options:'
- echo ' -r <app> Run "app" within the context of the chroot'
- echo ' -u Update the chroot via pacman'
echo ' -f Force overwrite of files in the working-dir'
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 ' -h This message'
- exit 1
+ echo ' -N Disable networking in the chroot'
+ echo ' actions:'
+ echo ' -i <pkg-list> Install "pkg-list" in the chroot.'
+ echo ' Creates the chroot if necessary, workding-dir must exist'
+ echo ' -r <cmd> Run "cmd" within the context of the chroot'
+ echo ' -u Update the chroot via pacman'
+ echo ' -h Print this message'
+
+ exit ${1-1}
}
-while getopts 'r:ufnhC:M:c:' arg; do
+################################################################################
+
+while getopts 'fC:M:nc:Nr:uh' arg; do
case "${arg}" in
- r) RUN="$OPTARG" ;;
- u) RUN='/bin/sh -c "pacman -Syu --noconfirm && (pacman -Qqu >/dev/null && pacman -Su --noconfirm || exit 0)"' ;;
f) FORCE='y' ;;
C) pac_conf="$OPTARG" ;;
M) makepkg_conf="$OPTARG" ;;
n) NOCOPY='y' ;;
c) cache_dir="$OPTARG" ;;
- h|?) usage ;;
+ N) NONETWORK='y' ;;
+
+ r) action="-$arg"; action_arg="$OPTARG" ;;
+ u|h) action="-$arg" ;;
+
*) error "invalid argument '${arg}'"; usage ;;
esac
done
-if (( $EUID != 0 )); then
- die 'This script must be run as root.'
-fi
-
shift $(($OPTIND - 1))
-if [[ -z $RUN ]] && (( $# < 2 )); then
- die 'You must specify a directory and one or more packages.'
-elif (( $# < 1 )); then
- die 'You must specify a directory.'
+if [[ -n $action ]]; then
+ case $# in
+ 0) error 'You must specify a directory.'; usage ;;
+ 1)
+ args=("$1" "$action")
+ [[ -n $action_arg ]] && args+=("$action_arg")
+ set -- "${args[@]}"
+ unset args action action_arg
+ ;;
+ *) error 'Extra arguments.'; usage ;;
+ esac
+else
+ if (( $# < 2 )); then
+ error 'You must specify a directory and an action.'
+ usage
+ fi
fi
-working_dir="$(readlink -f ${1})"
+working_dir="$(readlink -f "${1}")"
shift 1
-
[[ -z $working_dir ]] && die 'Please specify a working directory.'
+action=$1
+shift 1
+case "$action" in
+ -i) PKGS=("$@") ;;
+ -r) RUN="$*" ;;
+ -u)
+ (( $# > 0 )) && { error 'Extra arguments.'; usage; }
+ RUN='/bin/sh -c "pacman -Syu --noconfirm && (pacman -Qqu >/dev/null && pacman -Su --noconfirm || exit 0)"'
+ ;;
+ -h) usage 0 ;;
+ -*) error "invalid argument '${action#-}'"; usage ;;
+ *) PKGS=("$action" "$@") ;; # for compatability with mkarchroot
+esac
+unset action
+
+################################################################################
+
+if (( $EUID != 0 )); then
+ die 'This script must be run as root.'
+fi
+
if [[ -z $cache_dir ]]; then
cache_dirs=($(pacman -v $cache_conf 2>&1 | grep '^Cache Dirs:' | sed 's/Cache Dirs:\s*//g'))
else
@@ -112,23 +150,17 @@ copy_hostconf () {
}
chroot_lock () {
- # Only reopen the FD if it wasn't handed to us
- if [[ $(readlink -f /dev/fd/9) != "${working_dir}.lock" ]]; then
- exec 9>"${working_dir}.lock"
- fi
-
- # Lock the chroot. Take note of the FD number.
- if ! flock -n 9; then
- stat_busy "Locking chroot"
- flock 9
- stat_done
- fi
+ lock_open_write 9 "${working_dir}" "Locking chroot"
}
chroot_run() {
local dir=$1
shift
- eval systemd-nspawn -D "${dir}" "${mount_args[@]}" -- ${@} 2>/dev/null
+ local nspawn_args=(-D "$dir" "${mount_args[@]}")
+ if [[ $NONETWORK = y ]]; then
+ nspawn_args+=(--private-network)
+ fi
+ eval systemd-nspawn "${nspawn_args[@]}" -- "${@}" 2>/dev/null
}
# }}}
@@ -174,7 +206,7 @@ else
if [[ $FORCE = 'y' ]]; then
pacargs+=("--force")
fi
- if ! pacstrap -GMcd "${working_dir}" "${pacargs[@]}" "$@"; then
+ if ! pacstrap -GMcd "${working_dir}" "${pacargs[@]}" "${PKGS[@]}"; then
die 'Failed to install all packages'
fi