#!/usr/bin/env sh

. /etc/pkgmk.conf
. Pkgfile
OLD_VERSION='1.4.1'

[ -z "$PKGMK_WORK_DIR" ] && PKGMK_WORK_DIR="$PWD/work"
[ -z "$PKGMK_SOURCE_DIR" ] && PKGMK_SOURCE_DIR="$PWD"

if [ -e "$PKGMK_SOURCE_DIR/wesnoth-$version.tar.bz2" ]; then
	echo 'you have the lateist source file'
	exit 0
fi

if [ -n "`pkginfo -i | egrep '^xdelta '`" ]; then
	if [ -e "$PKGMK_SOURCE_DIR/wesnoth-$OLD_VERSION.tar.bz2" ]; then

		if [ ! -e "$PKGMK_WORK_DIR" ]; then
			mkdir -p "$PKGMK_WORK_DIR"
		fi
		cd "$PKGMK_WORK_DIR"

		if [ ! -e "$PKGMK_SOURCE_DIR/wesnoth-$OLD_VERSION.tar-wesnoth-$version.tar.xdelta" ]; then
			wget http://optusnet.dl.sourceforge.net/sourceforge/wesnoth/wesnoth-$OLD_VERSION.tar-wesnoth-$version.tar.xdelta --directory-prefix=$PKGMK_SOURCE_DIR
		fi

		cp $PKGMK_SOURCE_DIR/wesnoth-$OLD_VERSION.tar.bz2 .
		cp $PKGMK_SOURCE_DIR/wesnoth-$OLD_VERSION.tar-wesnoth-$version.tar.xdelta .
		bzip2 -d wesnoth-$OLD_VERSION.tar.bz2
		echo 'patching, this may take some time'
		xdelta patch wesnoth-$OLD_VERSION.tar-wesnoth-$version.tar.xdelta
		rm wesnoth-$OLD_VERSION.tar
		mv wesnoth-$OLD_VERSION.tar-wesnoth-$version.tar.xdelta $PKGMK_SOURCE_DIR/
		echo 'recompressing patched source'
		bzip2 -9 wesnoth-$version.tar
		mv wesnoth-$version.tar.bz2 $PKGMK_SOURCE_DIR/
	else
		echo "wesnoth-$OLD_VERSION.tar.bz2 not found proceed to run Pkgfile."
		exit 0
	fi
else
	echo 'No xdelta installed can not do a incremental update'
fi

# End of file