#!/usr/bin/env sh

#  helper script: builds SeaBIOS source code
#
#	Copyright (C) 2020, 2021, 2023 Leah Rowe <info@minifree.org>
#	Copyright (C) 2022 Ferass El Hafidi <vitali64pmemail@protonmail.com>
#
#    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 SeaBIOS payloads and SeaVGABIOS\n"

if [ ! -d "payload/seabios" ]; then
	mkdir -p payload/seabios/ || exit 1
fi

rm -f payload/seabios/* || exit 1

if [ ! -d "seabios/" ]; then
    ./download seabios || exit 1
fi

for x in normal vgarom libgfxinit; do
	if [ ! -f seabios/Makefile ]; then
		printf "SeaBIOS not properly downloaded.\n"
		exit 1
	fi
	make distclean -BC seabios || exit 1
	cp "resources/seabios/config/${x}" seabios/.config
	make silentoldconfig -j$(nproc) -BC seabios || exit 1
	make -j$(nproc) -BC seabios || exit 1
	cp seabios/out/bios.bin.elf "payload/seabios/seabios_${x}.elf" \
			|| exit 1
	if [ "${x}" = "libgfxinit" ]; then
		cp seabios/out/vgabios.bin payload/seabios/seavgabios.bin \
				|| exit 1
	fi
	rm -f seabios/.config || exit 1
done

# clean it again. gotta keep it clean!
if [ -f seabios/Makefile ]; then
	make distclean -BC seabios || exit 1
fi

printf "Done! SeaBIOS files are in payload/seabios/\n\n"