#!/bin/sh
#
#       fhist - file history and comparison tools
#       Copyright (C) 1993, 1994, 1998, 2008 Peter Miller
#
#       This program is free software; you can redistribute it and/or modify
#       it under the terms of the GNU General Public License as published by
#       the Free Software Foundation; either version 3 of the License, or
#       (at your option) any later version.
#
#       This program is distributed in the hope that it will be useful,
#       but WITHOUT ANY WARRANTY; without even the implied warranty of
#       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#       GNU General Public License for more details.
#
#       You should have received a copy of the GNU General Public License
#       along with this program. If not, see
#       <http://www.gnu.org/licenses/>.
#
orig=$1
path=$2
name=$3
tmp=/tmp/$$
trap "rm $tmp; exit 1" 1 2 3 15
echo diff -c $orig $path 1>&2
diff -c $orig $path > $tmp
case $? in
0)
        ;;
1)
        echo "Index: $name"
        sed '1,2d' < $tmp
        ;;
*)
        rm $tmp
        exit 1
        ;;
esac
rm $tmp
exit 0
