# PK_VERSION
# PK_DIRNAME

pkunpack() {
    if ! (copy "$DOWNLOAD_PACKET_DIR" "$UNPACK_PACKET_DIR" \
     && rm -f -r "$UNPACK_PACKET_DIR/$PK_DIRNAME/.git"); then
        return 1
    fi
	if [ ! -z "$PK_VERSION" ]; then
		cd "$DOWNLOAD_PACKET_DIR/$PK_DIRNAME"
		local COMMIT=`git rev-parse HEAD`
		[ ! $? -eq 0 ] && return 1
		echo "$PK_VERSION-$COMMIT" > "$UNPACK_PACKET_DIR/version-$NAME"
		[ ! $? -eq 0 ] && return 1
	fi 
}