#!/usr/bin/bash
#
#   optdepends.sh - Check the 'optdepends' array conforms to requirements.
#
#   Copyright (c) 2014-2018 Pacman Development Team <pacman-dev@archlinux.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 2 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/>.
#

[[ -n "$LIBMAKEPKG_LINT_PKGBUILD_OPTDEPENDS_SH" ]] && return
LIBMAKEPKG_LINT_PKGBUILD_OPTDEPENDS_SH=1

LIBRARY=${LIBRARY:-'/usr/share/makepkg'}

source "$LIBRARY/util/message.sh"
source "$LIBRARY/util/pkgbuild.sh"


lint_pkgbuild_functions+=('lint_optdepends')


lint_optdepends() {
	local optdepends_list optdepend name ver ret=0

	get_pkgbuild_all_split_attributes optdepends optdepends_list

	# this function requires extglob - save current status to restore later
	local shellopts=$(shopt -p extglob)
	shopt -s extglob

	for optdepend in "${optdepends_list[@]%%:[[:space:]]*}"; do
		name=${optdepend%%@(<|>|=|>=|<=)*}
		# remove optional epoch in version specifier
		ver=${optdepend##$name@(<|>|=|>=|<=)?(+([0-9]):)}
		lint_one_pkgname optdepends "$name" || ret=1
		if [[ $ver != $optdepend ]]; then
			# remove optional pkgrel in version specifier
			check_pkgver "${ver%-+([0-9])?(.+([0-9]))}" optdepends || ret=1
		fi
	done

	return $ret
}
