#! /bin/sh
#
# opkhelper
# src/opkbuild
# Build opkg packages.
#
# Copyright (C) 2012 Patrick "P. J." McDermott
#
# 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/>.

print_usage()
{
	printf 'Usage: %s\n' "$1"
}

# Sanity checks.
if [ ! -f format -o ! -f build -o ! -f control ]; then
	printf 'Error: Current working directory is not a source package.\n' >&2
	exit 1
fi
if [ "$(cat format)" != '1.0' ]; then
	printf 'Error: Source package is of an incompatible version.\n' >&2
	exit 1
fi

# Build *-src package.
mkdir -p tmp/dest/usr/src/${pkgname}_${pkgver}
cd tmp
for file in ../*; do
	case ${file} in
		../tmp)
			;;
		../*)
			cp -R ${file} dest/usr/src/${pkgname}_${pkgver}
			;;
	esac
done
# TODO: Generate control file.
oh-buildpkg ${pkgname}-src
rm -Rf dest

# Build other binary packages.
for binpkgdir in ../*.pkg/; do
	# TODO: Check architecture.
	if true; then
		# Make installation directory.
		# TODO: Maybe this should be an FHS-compliant filesystem hierarchy.
		mkdir dest
		# Copy or extract software sources to src.
		if [ -d ../src ]; then
			cp -Rp ../src src
		elif [ -f ../${pkgname}_${pkgver}.tar.gz ]; then
			tar -xzf ../${pkgname}_${pkgver}.tar.gz
		fi
		# TODO: Other compression formats, putting things in src/, ...
		binpkg=${binpkgdir#'../'}
		binpkg=${binpkg%'.pkg/}
		# Build the package.
		../build ${binpkg}
		# Clean up everything except the build stamps.
		for file in *; do
			case ${file} in
				*.buildstamp)
					;;
				*)
					rm -Rf ${file}
					;;
			esac
		done
	fi
done