#!/bin/bash

# Compare versions of voipgrid-ips.conf
# Modify to suit your needs

DIR="/var/local/lib/voipgrid"
FILE="voipgrid-ips.conf"

if [ ! -d "${DIR}" ]
then
	echo "Directory ${DIR} not found"
	exit 1
fi

cd "${DIR}/"

if [ -f "${FILE}" ]
then
	mv "${FILE}" "${FILE}.bak"
else
	> "${FILE}.bak"
	chmod 640 "${FILE}.bak"
	chown root:asterisk "${FILE}.bak"
fi

/usr/local/bin/gen-voipgr-ips.sh
chmod 640 "${FILE}"
chown root:asterisk "${FILE}"

if ! ( diff "${FILE}" "${FILE}.bak" > /dev/null )
then
	echo "Voipgrid IPs changed"
	cat "${FILE}"
fi