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#!/bin/bash -eE
# (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
DRYRUN=${DRYRUN:-false}
################################################################################
# Define these here to avoid having dependencies on outside files
msg() {
local mesg=$1; shift
printf "${GREEN}==>${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&2
}
msg2() {
local mesg=$1; shift
printf "${BLUE} ->${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&2
}
error() {
local mesg=$1; shift
printf "${RED}==> $(gettext "ERROR:")${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&2
}
################################################################################
if [[ ! -f /.arch-chroot ]] && ! ${DRYRUN}; then
error "(chcleanup): Must be run inside of a chroot"
exit 1
fi
source /etc/libretools.d/chroot.conf
# If we're running makepkg
if [ -f PKGBUILD ]; then
export CARCH="$(. /etc/makepkg.conf; printf '%s' "$CARCH")"
source PKGBUILD
CHROOTEXTRAPKG+=("${depends[@]}"
"${makedepends[@]}"
"${checkdepends[@]}")
fi
msg "Cleaning chroot..."
pacman -Sy || true
TEMPDIR="$(mktemp --tmpdir -d $(basename $0).XXXXX)"
cp -a /var/lib/pacman/sync "${TEMPDIR}/"
cleanup_log="${TEMPDIR}"/libretools-cleanup.log
# Get the full list of packages needed by dependencies, including the base system
pacman -b "${TEMPDIR}" \
-Sp --print-format "%n" \
base-devel "${CHROOTEXTRAPKG[@]}" \
>"${cleanup_log}"
# Diff installed packages against a clean chroot then remove leftovers
packages=($(comm -23 <(pacman -Qq | sort -u) \
<(sort -u "${cleanup_log}")))
RET=0
if [[ ${#packages[@]} != 0 ]]; then
msg2 "Removing %d packages" ${#packages[@]}
if ${DRYRUN}; then
echo "${packages[@]}"
else
# Only remove leftovers, -Rcs removes too much
pacman --noconfirm -Rn "${packages[@]}" || RET=$?
fi
fi
# Cleanup
rm -rf "${TEMPDIR}"
exit $RET
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