# Install build-time and run-time platform configuration files
#
# 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/>.

set -eu

copy_config()
{
	local list="${1}"
	local dest_base="${2}"
	shift 2
	local src=
	local dest=
	local dir=
	local src_base=
	local platconf_dir=
	local pkg_ver=

	while read -r src dest; do
		if [ -z "${src}" ] || [ -z "${dest}" ]; then
			ob_error "$(ob_get_msg 'bad_config_syntax')" "${list}"
			return 1
		fi

		# Make sure the destination directory exists.
		dir="$(dirname -- "${dest_base}/${dest}")"
		if ! mkdir -p -- "${dir}"; then
			ob_error "$(ob_get_msg 'cant_make_config_dest_dir')" \
				"${dir}"
			return 1
		fi

		# Find the config package files.
		src_base=''
		platconf_dir="$(ob_get_system_path 'platconf' \
			"${OPK_HOST_PLAT}")"
		if [ -d "${platconf_dir}/${OPK_SOURCE}/" ]; then
			src_base="${platconf_dir}/${OPK_SOURCE}/"
		else
			pkg_ver="${OPK_SOURCE}_${OPK_SOURCE_VERSION_UPSTREAM}"
			for dir in "${platconf_dir}/${OPK_SOURCE}_"*/; do
				case "${platconf_dir}/${pkg_ver}/" in ${dir})
					src_base="${dir}"
					break
				esac
			done
		fi
		if [ -z "${src_base}" ]; then
			# This shouldn't happen unless the package maintainer
			# neglected to add the config package to the package's
			# Build-Depends field.
			ob_error "$(ob_get_msg 'no_config_dir')"
			return 1
		fi

		# Copy the config file(s).
		ob_info "$(ob_get_msg 'copying_config_file')" "${src}" "${dest}"
		if ! cp -p -- "${src_base}/${src}" "${dest_base}/${dest}"; then
			ob_error "$(ob_get_msg 'cant_copy_config_file')"
			return 1
		fi
	done <"../${list}"

	return 0
}

main()
{
	local copied=
	local pkg=

	if ! ob_set_text_domain 'opkbuild'; then
		printf '%s: Error: Failed to load locale messages\n' \
			"${0##*/}" >&2
		return 1
	fi

	ob_init_package '..' || return 1

	copied='false'

	if [ -r '../platconf' ]; then
		copy_config 'platconf' '.'
		copied='true'
	fi

	for pkg in ${OPK_PACKAGES}; do
		if [ -r "../${pkg}.pkg/platconf" ]; then
			copy_config "${pkg}.pkg/platconf" "${pkg}.data"
			copied='true'
		fi
	done

	"${copied}" || ob_info "$(ob_get_msg 'no_plat_config')"

	return 0
}