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#!/usr/bin/env bash
# (c) Nicolás Reynolds <fauno@parabola.nu>
# Released under GPLv3
#
# Performs chroot cleanup smartly, it only removes the unneeded packages or
# leaves you with a cleansystem
#
# See: HOOKPREBUILD
set -e
DRYRUN=${DRYRUN:-false}
source /etc/makepkg.conf
source /etc/libretools.conf
source ${HOME}/.makepkg.conf 2>/dev/null|| true
msg "Cleaning chroot..."
TMPDIR="$(mktemp -d /tmp/$(basename $0)-XXXXX)"
cleanup_log="${TMPDIR}"/libretools-cleanup.log
cp -a /var/lib/pacman/sync "${TMPDIR}/"
touch ${cleanup_log}
# If we're running makepkg
if [ -f PKGBUILD ]; then
source PKGBUILD || true
check=(${depends[@]} ${makedepends[@]} ${checkdepends[@]})
fi
# Get the full list of packages needed by dependencies, including the base system
sudo pacman -b "${TMPDIR}" \
-Sp \
--print-format "%n" \
base base-devel sudo \
${CHROOTEXTRAPKG[@]} \
${check[@]} \
>${cleanup_log}
# Diff installed packages against a clean chroot then remove leftovers
packages=($(comm -23 <(pacman -Qq | sort) \
<(sort -u ${cleanup_log})))
[ ${#packages[@]} -eq 0 ] && exit 0
msg2 "Removing %d packages" ${#packages[@]}
# Only remove leftovers, -Rcs removes too much
${DRYRUN} || sudo pacman --noconfirm -Rn ${packages[@]}
${DRYRUN} && echo ${packages[@]}
# Cleanup
${DRYRUN} || rm -fr ${TMPDIR}
exit $?
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