#!/bin/sh
set -exu

# Check to make sure that module loads haven't been duplicated.
# Since this is potential minefield that could cause chaos, and a fix is
# currently in the Ubuntu delta, check specifically for it.

# Why is this so bad? See:
#   https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/1251939
#   https://issues.apache.org/bugzilla/show_bug.cgi?id=55787

cd $ADTTMP

apache2ctl -l -M > unsorted
sort unsorted > sorted
if ! grep core.c sorted ; then
	echo "core.c not found in apach2ctl output. apache2ctl broken?"
	exit 1
fi

uniq < sorted > dedup

if ! diff -u sorted dedup ; then
	echo Duplicate module loads found
	exit 1
fi