diff options
Diffstat (limited to 'src/chroot-tools/librechroot')
| -rwxr-xr-x | src/chroot-tools/librechroot | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/chroot-tools/librechroot b/src/chroot-tools/librechroot new file mode 100755 index 0000000..6594f15 --- /dev/null +++ b/src/chroot-tools/librechroot @@ -0,0 +1,158 @@ +#!/bin/bash -euE +# librechroot + +# Copyright 2010 Nicolás Reynolds +# Copyright 2011 Joshua Haase +# Copyright 2012 Luke Shumaker +# +# This file is part of Parabola. +# +# Parabola 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, either version 3 of the License, or +# (at your option) any later version. +# +# Parabola 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. +# +# You should have received a copy of the GNU General Public License +# along with Parabola. If not, see <http://www.gnu.org/licenses/>. + +. /etc/libretools.conf + +# This file (librechroot) is GPLv3+, but I would like to use some code +# modified from devtools' "makechrootpkg", which is GPLv2. +. "$(dirname "$0")/librechroot.gpl2" +# This gives us the functions: +# - sync + +cmd=${0##*/} +usage() { + echo "Usage: $cmd [OPTIONS] " + echo 'Interacts with a chroot.' + echo '' + echo "The default CHROOT is \`${CHROOT}'." + echo '' + echo 'Options:' + echo ' Settings:' + echo " -n <CHROOT> Use this chroot instead of \`$CHROOT'" + echo ' -l <COPY> Use this as the chroot copy instead of basing it' + echo ' on the username' + echo ' -N Disable networking in the chroot' + echo '' + echo ' Modes: (the last mode given will be used)' + echo ' -C Clean /repo in the chroot' + echo ' -c Clean the packages installed in the chroot' + echo ' -I <FILE> Install the package FILE into the chroot' + echo ' -i <PKG> Install the package PKG from repos into the chroot' + echo ' -m Make sure the chroot exists; do nothing else' + echo ' -r <CMD> Run CMD in the chroot' + echo " -s Sync the copy with the 'root' copy" + echo ' -u Update the chroot' + echo ' -h Print this message' +} + +main() { + CHROOTCOPY=$LIBREUSER + [[ $CHROOTCOPY != root ]] || CHROOTCOPY=copy + + local mode=enter + local archroot_args=(-f) + local ARG='' + while getopts 'n:l:NCcI:i:mrsuh' arg; do + case $arg in + n) CHROOT=$OPTARG;; + l) CHROOTCOPY=$OPTARG;; + N) archroot_args+=(-N);; + + C) mode=clean_repo;; + c) mode=clean_pacman;; + I) mode=install_file; ARG=$OPTARG;; + i) mode=install_pkg; ARG=$OPTARG;; + m) mode=noop;; + r) mode=run; ARG=$OPTARG;; + s) mode=sync;; + u) mode=update;; + + h) usage; exit 0;; + *) usage; exit 1;; + esac + done + shift $(($OPTIND - 1)) + if [[ $# > 0 ]]; then + usage + exit 1 + fi + + # not local + rootdir="${CHROOTDIR}/${CHROOT}/root" + copydir="${CHROOTDIR}/${CHROOT}/${CHROOTCOPY}" + + ######################################################################## + + if (( EUID )); then + error "This script must be run as root." + exit 1 + fi + + # Keep this lock as long as we are running + # Note that '9' is the same FD number as in (mk)archroot + lock_open_write 9 "$copydir" "Locking chroot copy '$CHROOTCOPY'" + + if [[ ! -d $rootdir ]]; then + libremkchroot "$CHROOT" + fi + + if [[ ! -d $copydir ]] && [[ $mode != sync ]]; then + sync + fi + + ######################################################################## + + case "$mode" in + clean_repo) + msg "Cleaning local pacman repository" + rm -rf "${copydir}/repo" + mkdir "${copydir}/repo" + bsdtar -czf "${copydir}/repo/repo.db.tar.gz" -T /dev/null + ln -s "repo.db.tar.gz" "${copydir}/repo/repo.db" + ;; + clean_pacman) + msg "Intelligently cleaning packages" + cp -a "$(which chcleanup)" "${copydir}/clean" + echo '#!/bin/bash' > "${copydir}/cleanstrap" + echo 'mkdir /build' >> "${copydir}/cleanstrap" + echo 'cd /build; /clean' >> "${copydir}/cleanstrap" + chmod 755 "${copydir}/cleanstrap" + archroot "${archroot_args[@]}" "${copydir}" -r /cleanstrap + ;; + install_file) + msg "Installing package file: $ARG" + cp "$ARG" "$copydir/${ARG##*/}" + archroot "${archroot_args[@]}" "$copydir" -r "pacman -U /${ARG##*/} --noconfirm" + rm "$copydir/${ARG##*/}" + ;; + install_pkg) + msg "Installing package(s): $ARG" + archroot "${archroot_args[@]}" "$copydir" -i $ARG + ;; + noop) :;; + run) + msg "Running command" + archroot "${archroot_args[@]}" "${copydir}" -r "$ARG" + ;; + sync) sync;; + update) + msg "Updating chroot" + archroot "${archroot_args[@]}" "${copydir}" -u + ;; + enter) + msg "Entering chroot" + archroot "${archroot_args[@]}" "${copydir}" -r bash + ;; + esac +} + +main "$@" |