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# Functions for retrieving metadata from packages in SPF 2.0
#
# Copyright (C) 2012 Patrick McDermott
#
# This file is part of opkbuild.
#
# opkbuild 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.
#
# opkbuild 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 opkbuild.  If not, see <http://www.gnu.org/licenses/>.

_OB_SOURCE_FIELDS_REQUIRED_2='Maintainer'
_OB_SOURCE_FIELDS_OPTIONAL_2='Build-Depends Homepage'
_OB_BINARY_FIELDS_REQUIRED_2='Architecture Platform Description'
_OB_BINARY_FIELDS_OPTIONAL_2='Essential Depends Recommends Suggests '\
'Pre-Depends Conflicts Provides Replaces'

_ob_parse_package_metadata_2()
{
	local pkg=

	ob_parse_control "${_OB_PACKAGE_DIR}/control" _ob_srcfield_2 '' \
		"${_OB_SOURCE_FIELDS_REQUIRED_2}" "${_OB_SOURCE_FIELDS_OPTIONAL_2}"
	ob_parse_changelog "${_OB_PACKAGE_DIR}/changelog" _ob_change_2

	for pkg in $(ob_get_binary_packages); do
		ob_parse_control "${_OB_PACKAGE_DIR}/${pkg}.pkg/control" \
			_ob_binfield_2 "${pkg}" \
			"${_OB_BINARY_FIELDS_REQUIRED_2}" "${_OB_BINARY_FIELDS_OPTIONAL_2}"
	done

	return 0
}

_ob_get_binary_packages_2()
{
	local pkgs=
	local pkg_control=

	for pkg_control in "${_OB_PACKAGE_DIR}/"*'.pkg/control'; do

		if [ ! -f "${pkg_control}" ]; then
			continue
		fi

		pkg_control="${pkg_control%.pkg/control}"
		pkg_control="${pkg_control##*/}"

		ob_validate_binary_name "${pkg_control}"

		pkgs="${pkgs} ${pkg_control}"

	done

	_ob_set_binary_packages "${pkgs}"

	return 0
}

_ob_srcfield_2()
{
	local name="${1}"
	local value="${2}"
	local user_data="${3}"
	shift 3 || _ob_abort

	_ob_set_source_parameter "${name}" "${value}"

	return 0
}

_ob_change_2()
{
	_ob_set_source_parameter Source "${OB_CHANGELOG_SOURCE}"
	_ob_set_source_parameter Version "${OB_CHANGELOG_VERSION}"
	_ob_set_source_parameter Distribution "${OB_CHANGELOG_DISTRIBUTION}"
	_ob_set_source_parameter Changes "${OB_CHANGELOG_CHANGES}"
	_ob_set_source_parameter Uploader "${OB_CHANGELOG_MAINTAINER}"
	_ob_set_source_parameter Date "${OB_CHANGELOG_DATE}"

	# Parse only the first changelog entry.
	return 1
}

_ob_binfield_2()
{
	local name="${1}"
	local value="${2}"
	local pkg="${3}"
	shift 3 || _ob_abort

	_ob_set_binary_parameter "${pkg}" "${name}" "${value}"

	return 0
}

_ob_get_doc_package_2()
{
	local pkg=
	local doc_pkg=

	for pkg in $(ob_get_binary_packages); do
		if [ -r "${_OB_PACKAGE_DIR}/${pkg}.pkg/docs" ]; then
			if [ -n "${doc_pkg}" ]; then
				return 1
			fi
			doc_pkg="${pkg}"
		fi
	done

	if [ -z "${doc_pkg}" ]; then
		return 1
	fi

	printf '%s' "${doc_pkg}"

	return 0
}

_ob_get_doc_files_2()
{
	local doc_pkg=

	doc_pkg="$(_ob_get_doc_package_2)"

	cat <<-EOF
		../copyright
		../changelog changelog.dist
		../README README.dist
		EOF
	cat -- "${_OB_PACKAGE_DIR}/${doc_pkg}.pkg/docs"

	return 0
}

_ob_set_package_substvars_2()
{
	local pkg="${1}"
	shift 1 || _ob_abort

	if [ -f "${_OB_PACKAGE_DIR}/substvars" ]; then
		ob_parse_control "${_OB_PACKAGE_DIR}/substvars" \
			_ob_substvar_2 ''
	fi

	ob_set_substvar 'Source-Version' "$(ob_get_source_parameter 'Version')"
	ob_set_substvar 'Binary-Version' "$(ob_get_source_parameter 'Version')"
	ob_set_substvar 'Host-Arch' "${OPK_HOST_ARCH}"
	ob_set_substvar 'Host-Plat' "${OPK_HOST_PLAT}"

	return 0
}

_ob_substvar_2()
{
	local name="${1}"
	local value="${2}"
	local user_data="${3}"
	shift 3 || _ob_abort

	ob_set_substvar "${name}" "${value}"

	return 0
}