#!/bin/bash
# Updates the cleansystem file
# Creates a fake Parabola root and writes to cleansystem all
# packages installable from base and base-devel plus extras.

# Copyright 2012 Nicolás Reynolds, Luke Shumaker

# ---------- GNU General Public License 3 ----------

# This file is part of Parabola.

# Parabola 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.

# Parabola 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 General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with Parabola. If not, see <http://www.gnu.org/licenses/>.

source /etc/libretools.conf

cleansystem=/etc/libretools.d/cleansystem

cmd=${0##*/}
usage() {
	echo "Usage: $cmd [<EXTRA_PACKAGES>]"
	echo "       $cmd -h"
	echo "Creates a fake Parabola root and writes to \`$cleansystem' all"
	echo "packages installable from base and base-devel plus extras."
	echo ''
	echo 'Options:'
	echo ' -h              Show this message'
}

if [ "$1" == '-h' ]; then
	usage
	exit 0
fi

if [ ! -w "$cleansystem" ]; then
	error 'This script must be run as root'
	exit 1
fi

tmpdir="`mktemp -d --tmpdir cleansystem.XXXXXXXXXX`"
mkdir -p "${tmpdir}"/var/lib/pacman

# We sync first because updating info gets printed to stdout too
pacman -r "${tmpdir}" --config /etc/pacman.conf -Sy 2>/dev/null
pacman -r "${tmpdir}" --config /etc/pacman.conf \
	-Sp --print-format "%n" \
	base base-devel sudo "$@" | sort > "$cleansystem"
exitcode=$?

rm -rf "$tmpdir"

exit $exitcode