#!/bin/bash
#
# Univention Appliance Docker Container
#  download only role packages for appliance docker container
#
# Copyright 2015-2020 Univention GmbH
#
# https://www.univention.de/
#
# All rights reserved.
#
# The source code of this program is made available
# under the terms of the GNU Affero General Public License version 3
# (GNU AGPL V3) as published by the Free Software Foundation.
#
# Binary versions of this program provided by Univention to you as
# well as other copyrighted, protected or trademarked materials like
# Logos, graphics, fonts, specific documentations and configurations,
# cryptographic keys etc. are subject to a license agreement between
# you and Univention and not subject to the GNU AGPL V3.
#
# In the case you use this program under the terms of the GNU AGPL V3,
# the program is provided 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License with the Debian GNU/Linux or Univention distribution in file
# /usr/share/common-licenses/AGPL-3; if not, see
# <https://www.gnu.org/licenses/>.

check_returnvalue ()
{
	rval=$1
	shift
	errormessage=$@
	if [ "${rval}" != 0 ]; then
		echo "${errormessage}"
		exit "${rval}"
	fi
}

if [ "$1" = "-h" -o "$1" = "--help" ]; then
	echo "Usage $0 [<package> ...]"
	exit 2
fi

mkdir -p /var/cache/univention-system-setup/packages/
(

	cd /var/cache/univention-system-setup/packages/
	install_cmd="$(univention-config-registry get update/commands/install)"

	if [ "$#" -gt 0 ]; then
		simulation_output=$(LC_ALL=C $install_cmd --reinstall -s -o Debug::NoLocking=1 "$@")
		required_packages=($(sed -ne 's|^Inst \([^ ]*\) .*|\1|p' <<<"$simulation_output"))
		## Show what will be done:
		echo "$simulation_output"
		## And download the packages:
		apt-get download -o Dir::Cache::Archives=/var/cache/univention-system-setup/packages "${required_packages[@]}"
		check_returnvalue $? "Failed to download required packages for" "$@"
	fi

	apt-ftparchive packages . >Packages
	check_returnvalue $? "Failed to create ftparchive directory"
	
	
	if [ ! -e /etc/apt/sources.list.d/05univention-system-setup.list ]; then
		echo "deb [trusted=yes] file:/var/cache/univention-system-setup/packages/ ./" >>/etc/apt/sources.list.d/05univention-system-setup.list
	fi

)

exit 0
