# pro-archman
# lib/remove.sh
# Functions for removing packges
#
# Copyright (C) 2013  Patrick "P. J." McDermott
#
# This program 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.
#
# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

use db

remove_source_from_suite()
{
	local chan="${1}"
	local dist="${2}"
	local source="${3}"
	local arch=
	local plat=

	while read -r arch plat; do
		remove_packages_from_suite_archplat \
			"${chan}" "${dist}" "${arch}" "${plat}" "${source}"
	done <<-EOF
		$(db_get_archplats "${chan}" "${dist}" "${source}")
		EOF

	db_del_srcver "${chan}" "${dist}" "${source}"

	return 0
}

remove_packages_from_suite_archplat()
{
	local chan="${1}"
	local dist="${2}"
	local arch="${3}"
	local plat="${4}"
	local source="${5}"
	local binver=
	local refs=
	local size=
	local sect=
	local pkg=
	local file=

	binver="$(db_get_binver "${chan}" "${dist}" "${arch}" "${plat}" \
		"${source}")"
	if [ "x${binver}" = 'x' ]; then
		return 0
	fi
	db_del_binver "${chan}" "${dist}" "${arch}" "${plat}" "${source}"
	refs=$(db_dec_references "${arch}" "${plat}" "${source}" "${binver}")

	while read -r size sect pkg; do
		feed_remove_package "${chan}" "${dist}" "${arch}" "${plat}" \
			"${sect}" "${pkg}"
		if [ ${refs} -eq 0 ]; then
			file="pool/$(hash_name "${source}")/${source}"
			file="${file}/${pkg}_${binver}_${arch}_${plat}.opk"
			mark_pool_garbage "${file}"
		fi
	done <<-EOF
		$(db_get_packages "${arch}" "${plat}" "${source}" "${binver}")
		EOF

	if [ ${refs} -eq 0 ]; then
		db_del_packages "${arch}" "${plat}" "${source}" "${binver}"
	fi

	return 0
}