#!/bin/sh
#
#	aegis - project change supervisor
#	Copyright (C) 2002 Peter Miller;
#	All rights reserved.
#
#	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 2 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, write to the Free Software
#	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
#
# MANIFEST: insulate against diff2html present or absence
#

#
# Work out if there is a diff2html program on the PATH.
# This can't be worked out by ./configure, because this happens on the
# machine which *builds* the RPM, and not the machine on which the rpm
# is installed.  Plus, they could run aegis.cgi in a chroot jail, and
# not put diff2html in the jail with it.
#
have_diff2html=no
IFS="${IFS=   }"
save_ifs="$IFS"; IFS=":"
dummy="$PATH"
for dir in $dummy
do
    test -z "$dir" && ac_dir=.
    if test -f $dir/diff2html
    then
	have_diff2html=yes
	break
    fi
done
IFS="$save_ifs"

#
# The command line should have two file names on it, diff them and output HTML.
#
if [ "$have_diff2html" == "yes" ]
then
    diff2html "$@"
else
    echo '<pre>'
    diff -c "$@" 2>&1 | sed 's|<|\&lt;|g'
    echo '</pre>'
fi
exit 0
