gnuboot/download

#!/usr/bin/env bash

# Generic script for downloading programs used by the build system
#
#	Copyright (C) 2014, 2015, 2020, 2021 Leah Rowe <info@minifree.org>
#	Copyright (C) 2015 Patrick "P. J." McDermott <pj@pehjota.net>
#	Copyright (C) 2015, 2016 Klemens Nanni <contact@autoboot.org>
#	Copyright (C) 2022, Caleb La Grange <thonkpeasant@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/>.
#

# shellcheck source=.gitcheck
./.gitcheck

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

./resources/scripts/misc/versioncheck

. resources/scripts/misc/sysexits.sh

# set this when you want to modify each coreboot tree
# for example, you want to test custom patches
# NODELETE='' ./download coreboot
deleteblobs="true"
[ "${NODELETE+set}" = 'set' ] && deleteblobs="false"

rm -f "build_error"

list_modify_paths() {
	find resources/packages \
		-mindepth 2 -maxdepth 2 \
		-type f \
		-name "download" \
		-printf "%P\n"
}

list_packages() {
	list_modify_paths | \
		sed 's#/.*##'
}

help() {
	cat <<- EOF
	Usage:
	        ./download <PACKAGE> <OPTIONS>
	        ./download --help

	possible values for 'package':
	$(list_packages)

	Example:	./download flashrom
	Example:	./download coreboot

	Some package options allow for additional parameters:
	Example:	./download coreboot default
	Example:	./download coreboot x60

	Each package download script should work without extra paramaters, but
	they can use them. For instance, './download coreboot' will download all
	coreboot trees by default, but './download coreboot x60' will only
	download the coreboot tree required for the target: x60

	Each package download script should also accept the --help paramater to
	display the usage of the script.

	Refer to the documentation for more information.
	EOF
}

die() {
	ret="$1"
	shift 1

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

if [ $# -lt 1 ]; then
	help
	die "${EX_USAGE}" "Please specify arguments."
fi

package="${1}"
shift 1
[ "${package}" = "--help" ] && help && exit 0

if [ "${package}" = "all" ]; then
	for script in resources/packages/*/download; do
		if [ "${deleteblobs}" = "false" ]; then
			NODELETE='' "${script}"
		else
			"${script}"
		fi
	done
	exit 0
elif [ ! -f "resources/packages/${package}/download" ]; then
	help
	die "${EX_USAGE}" \
	    "Invalid package '${package}'." \
	    " See: './download --help'."
fi

if [ $# -lt 1 ]; then
	if [ "${deleteblobs}" = "false" ]; then
		NODELETE='' resources/packages/"${package}"/download
	else
		resources/packages/"${package}"/download
	fi
else
	if [ "${deleteblobs}" = "false" ]; then
		# shellcheck disable=SC2068
		NODELETE='' resources/packages/"${package}"/download $@
	else
		# shellcheck disable=SC2068
		resources/packages/"${package}"/download $@
	fi
fi

# shellcheck disable=SC2317
./.gitcheck clean

exit 0