buildconf

#!/bin/sh
#
# buildconf - creates an OpenWrt config file for oldconfig
# Copyright (C) 2013  Cyrus <cyrus AT lambdacore.de>
#
# 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/>.

fail() {
    echo "$1" 1>&2
    exit 1
}

printArgs () {
    fail 'Usage:
$(basename $0) [profile] [community] "Addtional packages"
Example: $(basename $0) ar71xx neuss
		 $(basename $0) ar71xx neuss "space seperated packagenames"
'
}

genconfig () {
	local profile="$1"
	local community="$2"
	local add_packages="$3"
	
	[ -s buildconf.d/$profile.profile ] || fail "Error: Profile file missing or empty!"
	. buildconf.d/$profile.profile
	
	[ -n "$target" ] || fail "Error: Target not set"
	[ -s buildconf.d/target/$target ] || fail "Error: Target file missing or empty!"
	cat buildconf.d/target/$target
	
	for defpkgfile in $(find buildconf.d/default/*)
	do
		cat $defpkgfile
	done
	
	for incpkgfile in $include_packages
	do
		cat buildconf.d/packages/$incpkgfile | cut -f1 -d'=' | sed 's/$/=y/'
	done
	
	for modpkgfile in $module_packages
	do
		cat buildconf.d/packages/$modpkgfile | cut -f1 -d'=' | sed 's/$/=m/'
	done
	
	if [ -d buildconf.d/communities/$community ]; then
		for compkgfile in $(find buildconf.d/communities/$community/*)
		do
			cat $compkgfile
		done
	fi
	
	if [ -n "$add_packages" ]; then
		for addpkg in $add_packages
		do
			echo "CONFIG_PACKAGE_$addpkg=y"
		done
	fi
}

[ $# -lt 2 ] && printArgs

case "$1" in
    --help|-h)
	printArgs
	;;
	*)
	genconfig "$1" "$2" "$3"
esac