#!/bin/bash

#
#  helper script: generate the source release archive
#
#	Copyright (C) 2014, 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

printf 'Building the source release archive\n'

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/${version}"
distname="libreboot_${version}_src"
distdir="${versiondir}/${distname}"

printf 'Deleting old source release archives\n'
rm -f "${distdir}.tar.xz"
rm -Rf "${distdir:?}/"

mkdir -p "${distdir}/"

printf 'Copying sources to %s/\n' "${distdir}"
for resource in *; do
	if [ "${resource}" = "release" ]; then
		continue
	fi
	cp -R "${resource}" "${distdir}/"
done

# 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 > "${distdir}/ChangeLog"
	cp "${distdir}/ChangeLog" "${distdir}/NEWS"
else
	# building from release archive
	cp "ChangeLog" "${distdir}/"
	cp "NEWS" "${distdir}/"
fi

# include version information
printf '%s\n' "${version}" >"${distdir}/version"
# include version date information
printf '%s\n' "${versiondate}" >"${distdir}/versiondate"

printf 'Cleaning files in %s/\n' "${distdir}"

# Clean old builds.
(cd "${distdir}/" && ./build clean all)
printf '\n'

# Delete Git repositories and properties and Subversion administrative
# directories and properties.
rm -Rf "${distdir}/bucts/".git*
rm -Rf "${distdir}/flashrom/".git*
rm -Rf "${distdir}/grub/".git*
rm -Rf "${distdir}/depthcharge/".git*
rm -Rf "${distdir}/seabios/".git*

rm -f "${distdir}"/*.vim

# Delete useless files.
rm -Rf "${distdir}/TODO/"
rm -f "${distdir}/push"

# Delete the deblob scripts.
# Since the source archive doesn't distribute the download scripts and already
# comes with a deblobbed coreboot, the deblobbing scripts aren't needed at all.
rm -Rf "${distdir}/resources/utilities/coreboot-libre/"

# Download scripts not needed, because the modules already exist
# in the src release archive
rm -f "${distdir}/download"
rm -Rf "${distdir}/resources/scripts/helpers/download/"

# Other patches aren't needed in the release, either
rm -Rf "${distdir}/resources/depthcharge/patch/"
rm -Rf "${distdir}/resources/grub/patch/"
rm -Rf "${distdir}/resources/memtest86plus/patch/"

# ich9deblob: There are certain files in there that the user most likely does
# not want to share.
rm -f "${distdir}/resources/utilities/ich9deblob/"*.bin
rm -f "${distdir}/resources/utilities/ich9deblob/"*.rom
rm -f "${distdir}/resources/utilities/ich9deblob/mk"*.[ch]
rm -f "${distdir}/mk"*.[ch]
rm -f "${distdir}/"*.bin
rm -f "${distdir}/"*.rom

# Remove any GRUB payload ELF executables that may exist
rm -f "${distdir}/resources/utilities/grub-assemble/grub_txtmode.elf"
rm -f "${distdir}/resources/utilities/grub-assemble/grub_vesafb.elf"

printf 'Creating %s.tar.xz\n' "${distdir}"
(cd "${versiondir}/" && tar -c "${distname}/" | xz -9e >"${distname}.tar.xz")

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

printf 'Source release archive is stored in %s/\n' "${versiondir}"