#!/bin/bash

#  helper: prepare a small source archive for those utils
#  that don't easily cross-compile. Then the tarball can be extracted
#  on those systems with the target architecture, and compiled.
#
#	Copyright (C) 2014, 2015 Minifree Ltd <info@minifree.org>
#
#    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 [ -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}_tobuild"
distdir="${versiondir}/${distname}"

printf "Creating source archive for flashrom and bucts\n"

# delete the old data
rm -Rf "${distdir:?}/"
rm -f "${distdir}.tar.xz"

# this is where they will go
mkdir -p "${distdir}/"

# flashrom
cp -R "flashrom/" "${distdir}/"
rm -f "${distdir}/flashrom/flashrom_lenovobios_sst"
rm -f "${distdir}/flashrom/flashrom_lenovobios_macronix"
(cd "${distdir}/flashrom/" && make clean)
mkdir -p "${distdir}/resources/flashrom/"
cp -R "resources/flashrom/patch/" "${distdir}/resources/flashrom/"

# bucts
cp -R "bucts/" "${distdir}/"
(cd "${distdir}/bucts/" && make clean)
mkdir -p "${distdir}/resources/bucts/"
cp -R "resources/bucts/patch/" "${distdir}/resources/bucts/"

# the build script will be needed
cp build "${distdir}/"
# needed build scripts (helpers)
mkdir -p "${distdir}/resources/scripts/helpers/build/"
mkdir -p "${distdir}/resources/scripts/helpers/build/module/"
mkdir -p "${distdir}/resources/scripts/helpers/build/clean/"
cp "resources/scripts/helpers/build/clean/bucts" "${distdir}/resources/scripts/helpers/build/clean/"
cp "resources/scripts/helpers/build/clean/flashrom" "${distdir}/resources/scripts/helpers/build/clean/"
cp "resources/scripts/helpers/build/module/bucts" "${distdir}/resources/scripts/helpers/build/module/"
cp "resources/scripts/helpers/build/module/flashrom" "${distdir}/resources/scripts/helpers/build/module/"
cp "resources/scripts/misc/powertop.trisquel7" "${distdir}/"

# 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"

# that is all. now tar it up
(cd "${versiondir}/" && tar -c "${distname}/" | xz -9e >"${distname}.tar.xz")

# and delete the directory
rm -Rf "${distdir:?}/"

printf "\n"
printf "Tar archive created: %s\n" "${distdir}.tar.xz"
printf "NOTE: don't forget to add ARM binaries for flashrom.\n"
printf "NOTE: don't forget to add i386 binaries for flashrom/bucts.\n"
printf "The archive %s.tar.xz has been created with everything needed to build these utilities.\n\n" "${distname}"