#!/bin/bash

if [ "$2" = "" ]; then
   echo "Usage: $0 [source_directory] [target_file.sb] [ -d ]"
   exit 1
fi


if [ ! -d "$1" ]; then
   echo "Not a directory: $1"
   exit 2
fi

if [ -e "$2" ]; then
   echo "Target exists: $2"
   exit 3
fi

if [ "$3" = "-d" ]; then
   KEEP="-keep-as-directory"
else
   KEEP=""
fi

mksquashfs "$1" "$2" -comp xz -b 512K $KEEP