#!/usr/bin/env bash

#
#  helper script: build coreboot images with various payloads
#
#	Copyright (C) 2014, 2015, 2016, 2020, 2021 Leah Rowe <info@minifree.org>
#	Copyright (C) 2015 Klemens Nanni <contact@autoboot.org>
#	Copyright (C) 2023, 2024 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.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/>.
#

# This script assumes that the working directory is the root
# of git or release archive

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

projectname="$(cat projectname)"

listboards() {
	for boarddir in resources/coreboot/*; do
		if [ ! -d "${boarddir}" ]; then continue; fi
		board="${boarddir##resources/coreboot/}"
		board="${board%/}"

		# TODO: In GNU Boot 0.1 RC1 build the release didn't produce
		# images for the 'default', 'fam15h_rdimm' and 'fam15h_udimm'
		# 'computers'. So a bug was introduced at some point and made
		# GNU Boot build these targets. Since we didn't find the bug we
		# workaround it instead.
		if [ "${board}" = "default" ]; then continue; fi
		if [ "${board}" = "fam15h_rdimm" ]; then continue; fi
		if [ "${board}" = "fam15h_udimm" ]; then continue; fi

		printf '%s\n' "${board##*/}"
	done
}

help() {
	cat <<- EOF
	USAGE:	./build boot roms boardname
	To build *all* boards, do this: ./build boot roms all
	To list *all* boards, do this: ./build boot roms list

	possible values for 'options':
	$(listboards)

	Example:	./build boot roms x60
	Example:	./build boot roms x200_8mb x60

	Refer to the ${projectname} documentation for more information.
	EOF
}

die() {
	printf 'Error: %s\n' "${@}" 1>&2
	exit 1
}

# Build ROM images for supported boards
buildrom() {
	board="$1"
	if [ -d "resources/coreboot/${board}/" ]; then
		./build boot roms_helper "${board}"
	else
		die "\nbuild/roms: target not defined in the build system: %s\n" "${board}"
	fi
}

if [ $# -gt 0 ]; then
	firstoption="${1}"
	if [ "${firstoption}" = "--help" ]; then
		help
		exit 0
	fi
	if [ "${firstoption}" = "help" ]; then
		help
		exit 0
	fi
	if [ "${firstoption}" = "list" ]; then
		listboards
		exit 0
	fi

	printf "Building %s ROM images\n" "${projectname}"

	if [ "${firstoption}" = "all" ]; then
		for boardname in $(listboards); do
			buildrom "${boardname}" || die "build/roms: something went wrong"
		done
	else
		for board in ${@}; do
			buildrom "${board}" || die "build/roms: something went wrong"
		done
	fi
else
	help
	exit 1
fi


printf "\n\nDone! Your ROMs are in bin/\n\n"