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#!/usr/bin/env bash
# Copyright (C) 2011-2012 Nicolás Reynolds <fauno@parabola.nu>
# Copyright (C) 2012-2013 Luke Shumaker <lukeshu@sbcglobal.net>
#
# If you don't see m4_include(...) below, but see function definitions
# for msg() et al., then this is a generated file, and contains some
# code from librelib. The the source distribution for full copyright
# information.
#
# License: GNU GPLv3+
#
# 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, either version 3 of the License, or
# (at your option) any later version.
#
# 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Performs chroot cleanup smartly, it only removes the unneeded packages or
# leaves you with a cleansystem
#
# See: HOOKPREBUILD
set -eE
DRYRUN=${DRYRUN:-false}
# Statically include various library routines to avoid having
# dependencies on outside files.
# Begin chcleanup.lib ##########################################################
m4_include(chcleanup.lib)
# End chcleanup.lib ############################################################
if [[ ! -f /.arch-chroot ]] && ! ${DRYRUN}; then
error "(chcleanup): Must be run inside of a chroot"
exit 1
fi
# Note: the in-chroot pkgconfdir is non-configurable, this is
# intentionally hard-coded.
source /etc/libretools.d/chroot.conf
# If we're running makepkg
if [[ -f PKGBUILD ]]; then
export CARCH="$(. /etc/makepkg.conf; printf '%s' "$CARCH")"
source ./PKGBUILD
CHROOTEXTRAPKG+=("${depends[@]}"
"${makedepends[@]}"
"${checkdepends[@]}")
fi
msg "Cleaning chroot..."
# Sync the local repo with pacman
cp /repo/repo.db /var/lib/pacman/sync/repo.db
# Setup the temporary directory
TEMPDIR="$(mktemp --tmpdir -d ${0##*/}.XXXXXXXXXX)"
trap "rm -rf -- $(printf '%q' "$TEMPDIR")" EXIT
cp -a /var/lib/pacman/sync "${TEMPDIR}/"
pkglist="${TEMPDIR}"/pkglist.txt
# Get the full list of packages needed by dependencies, including the base system
msg2 "Creating a full list of packages..."
pacman -b "${TEMPDIR}" \
-Sp --print-format "%n" base-devel "${CHROOTEXTRAPKG[@]}" >"$pkglist" || {
ret=$?
error "Could not create a full list of packages, exiting."
plain "This is likely caused by a dependency that could not be found."
exit $ret
}
# Diff installed packages against a clean chroot then remove leftovers
packages=($(comm -23 <(pacman -Qq | sort -u) \
<(sort -u "${pkglist}")))
if [[ ${#packages[@]} = 0 ]]; then
msg2 "No packages to remove"
else
msg2 "Removing %d packages" ${#packages[@]}
if ${DRYRUN}; then
echo "${packages[*]}"
else
# Only remove leftovers, -Rcs removes too much
pacman --noconfirm -Rn "${packages[@]}"
fi
fi
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