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#!/bin/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
[ ! -f /etc/libretools.d/cleansystem ] && exit 1
[ ! -d "${DB:-/var/lib/libretools/clean}"/sync ] && exit 1
source $(dirname $0)/libremessages
msg "Cleaning chroot..."
cleanup_log=/tmp/libretools-cleanup.log
touch ${cleanup_log}
# If we're running makepkg
if [ -f PKGBUILD ]; then
source PKGBUILD || true
# Update the cleansystem database
sudo pacman -b "${BD:-/var/lib/libretools/clean}" -Sy
# Get the full list of packages needed by dependencies
sudo pacman -b "${BD:-/var/lib/libretools/clean}" \
-Sp \
--print-format "%n" \
${depends[@]} ${makedepends[@]} ${checkdepends[@]} \
>${cleanup_log}
fi
# Diff installed packages against a clean chroot and needed packages,
# then remove leftovers
packages=($(comm -23 <(pacman -Qq | sort) \
<(cat /etc/libretools.d/cleansystem ${cleanup_log} | sort -u)
))
[ ${#packages[@]} -eq 0 ] && exit 0
msg2 "Removing ${#packages[@]} packages: ${packages[@]}"
# Only remove leftovers, -Rcs removes too much
sudo pacman --noconfirm -Rn ${packages[@]}
# Cleanup
rm -f ${cleanup_log}
exit $?
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