#! /usr/bin/env bash
#
# A diff canonifier that sorts all lines but keeps all comments
# at the top. It also adds a note at the beginning as a reminder
# that the output has been sorted.

if [ "$TMP" == "" ]; then
    TMP=/tmp
fi

tmp=$TMP/`basename $0`.$$.tmp

cat >$tmp

echo "### NOTE: This file has been sorted with `basename $0`."
cat $tmp | grep ^#
cat $tmp | grep -v ^# | sort -s

rm -f $tmp