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#!/usr/bin/env bash
set -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=${DRYRUN:-false}
################################################################################
# Define these here to avoid having dependencies on outside files
if type gettext &>/dev/null; then
_() { gettext "$@"; }
else
_() { echo "$@"; }
fi
plain() {
local mesg="$(_ "$1")"; shift
printf "${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&2
}
msg() {
local mesg="$(_ "$1")"; shift
printf "${GREEN}==>${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&2
}
msg2() {
local mesg="$(_ "$1")"; shift
printf "${BLUE} ->${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&2
}
warning() {
local mesg="$(_ "$1")"; shift
printf "${YELLOW}==> $(gettext "WARNING:")${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..."
msg2 "Fetching updated package lists..."
pacman -Sy || {
warning "There was an error updating package lists, ignoring."
}
# Setup the temporary directory
TEMPDIR="$(mktemp --tmpdir -d $(basename $0).XXXXX)"
trap "rm -rf '$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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