#!/bin/bash
#
# Compare result files from testfsa
# create output file with differences
# and counts the number of lines in output.diff
# $1 --> compare from (.result)
# $2 --> compare to (.result)

if [ "$1" ] && [ "$2" ]
then
if [ -e "$1" ]
then
if [ -e "$2" ]
then
    name=$(basename $1 .result)
    
    echo ""
    echo "..Create $name.diff"
    diff --side-by-side --width=50 $1 $2 | grep "|" > $name.diff
    
    echo -n "..Number of differences found: "
    grep -c "|" $name.diff
    echo ""
else
    echo "..file $2 not found"
fi
else
    echo "..file $1 not found"
fi
else
    echo "..Usage: compare [fromfile.result] [tofile.result]"
fi