#!/bin/sh
# $Id: kdiff,v 1.2 2005/03/14 07:49:44 candy Exp candy $
# kernel config diff

diffopt=
while case "$1" in -*) diffopt="$diffopt $1"; shift ;; *) false;; esac
do
done
case $# in
2) ;;
*) ( echo "usage: $0 [-diffopt] CONFIG1 CONFIG2"
     echo "diff CONFIG1 and CONFIG2"
     echo "file name '-' means stdin"
     echo "don't use space in diffopt. (e.g. -u 0 should be -u0 or '-u 0')"
     ) 1>&2
     exit 1;;
esac

prog=`basename $0`
tmp1=`mktemp /tmp/${prog}.XXXXXX` || { echo "$0: mktemp failed" 1>&2; exit 1; }
trap 'rm -f $tmp1; exit 1' 1 2 15
tmp2=`mktemp /tmp/${prog}.XXXXXX` || { rm -f $tmp1; echo "$0: mktemp failed" 1>&2; exit 1; }

trap 'rm -f $tmp1 $tmp2; exit 1' 1 2 15

cat $1 | sed '/^$/d;/^#/d;s/[ 	]*#.*//' > $tmp1
cat $2 | sed '/^$/d;/^#/d;s/[ 	]*#.*//' > $tmp2

diff $diffopt $tmp1 $tmp2
rm -f $tmp1 $tmp2