#!/bin/bash

#
#  helper script: generate the ROM image release archives
#
#	Copyright (C) 2015 Leah Rowe <info@minifree.org>
#	Copyright (C) 2015 Patrick "P. J." McDermott <pj@pehjota.net>
#
#    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/>.
#

[ "x${DEBUG+set}" = 'xset' ] && set -v
set -u -e

if [ ! -d bin/ ]; then
	printf "build/release/roms: no bin/ directory exists. (you haven't built any images)\n"
	exit 1
fi

if [ -f "version" ]; then
	# _src release archive is being used
	version="$(cat version)"
	versiondate="$(cat versiondate)"
else
	# git repo is being used
	version="$(git describe --tags HEAD)"
	versiondate="$(git show -s --format=%ct)"
fi
versiondir="release/${version}"
romdir="${versiondir}/rom"
distname="libreboot_${version}"

printf 'Building ROM image release archives for...\n'

cd "bin/"

for payload in *; do

	[ ! -d "../${romdir}/${payload}/" ] && mkdir -p "../${romdir}/${payload}/"

	cd "${payload}/"
	
	for board in *; do

		archivename="${distname}_${payload}_${board}"

		printf '...%s' "${payload}/${board}"

		# Delete the old archive
		rm -f "../../${romdir}/${payload}/${distname}_${board}.tar.xz"

		cp -R "${board}/" "${archivename}/"

		# this has to be done before generating
		# the "version" file
		if [ ! -f "version" ]; then
			# generate ChangeLog and NEWS files
			rm -f "ChangeLog" "NEWS"
			git log > "${archivename}/ChangeLog"
			cp "${archivename}/ChangeLog" "${archivename}/NEWS"
		else
			# building from release archive
			cp "ChangeLog" "${archivename}/"
			cp "NEWS" "${archivename}/"
		fi

		# Put the version string in the archive.
		printf '%s\n' "${version}" >"${archivename}/version"
		# Put the version date string in the archive
		printf '%s\n' "${versiondate}" >"${archivename}/versiondate"

		# Create the compressed archive.
		tar -c "${archivename}/" | xz -9e >"../../${romdir}/${payload}/${archivename}.tar.xz"

		rm -Rf "${archivename:?}/"

		printf ' OK\n'
		
	done
	
	cd "../"
	
done

cd "../"

printf 'ROM image release archives are stored in %s/\n' "${romdir}"