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# Functions for handling metadata in SPF 2.0 packages
#
# Copyright (C) 2014  Patrick McDermott
#
# This file is part of the ProteanOS Development Kit.
#
# The ProteanOS Development Kit 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.
#
# The ProteanOS Development Kit 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 the ProteanOS Development Kit.  If not, see
# <http://www.gnu.org/licenses/>.

_package_2_build_deps=

_package_2_get_name_and_version()
{
	# The first line is all we need to parse.
	sed '1{ s/^\([^ ][^ ]*\) (\([^)][^)]*\)).*$/\1 \2/; q; };' \
		"${package_dir}/changelog"

	return 0
}

_package_2_build_deps_field_cb()
{
	local name="${1}"
	local value="${2}"
	shift 2

	name="$(printf '%s\n' "${name}" | tr 'A-Z' 'a-z')"

	if [ "x${name}" = 'xbuild-depends' ]; then
		_package_2_build_deps="${value}"
		return 1
	fi

	return 0
}

package_2_get_build_deps()
{
	local arch="${1}"
	local plat="${2}"
	shift 2

	_package_2_build_deps=''
	parse_control "${package_dir}/control" \
		_package_2_build_deps_field_cb false

	substvars "$(reduce_deps "${_package_2_build_deps}" false \
		"${arch}" "${plat}")"

	return 0
}

_package_2_substvar_cb()
{
	local name="${1}"
	local value="${2}"
	shift 2

	set_substvar "${name}" "${value}"

	return 0
}

package_2_set_substvars()
{
	local arch="${1}"
	local plat="${2}"
	shift 2

	if [ -f "${package_dir}/substvars" ]; then
		parse_control "${package_dir}/substvars" \
			_package_2_substvar_cb false
	fi

	set_substvar 'Host-Arch' "${arch}"
	set_substvar 'Host-Plat' "${plat}"

	return 0
}