#!/bin/sh
find $2 | sed -e "s:^$2/::" > files.txt
rm toadd.txt>/dev/null
for f in $(cat files.txt)
do
    if [ -f "$2/$f" ]
    then
        if ! cmp -s "$1/$f" "$2/$f"; then
                echo $f >> toadd.txt
        fi
    fi
done
cd $2
tar -cf ../package.tar --files-from ../toadd.txt
cd ..
rm toadd.txt
rm files.txt