#!/bin/bash
PWD=`pwd`
TOP=`basename $PWD`
if [ -f $1~ ]; then
	rm -f $1~
fi
cp $1 $1~
$EDITOR $1
cd ..
diff -up $TOP/$1~ $TOP/$1 >>$TOP/current.diff
find . -maxdepth 1 -name current.diff -empty -exec rm {} \;