#!/bin/bash

# Configuration
WORKDIR=/opt/expire-sites
APACHEDIR=/etc/apache2
CONFIGFILE=${APACHEDIR}/conf-available/disable-expired-site.conf

# Check
if [ ! -e ${WORKDIR} ]; then
   echo 'Unable to find work directory: ' ${WORKDIR} >&2
   exit 1
fi

if [ ! -e ${APACHEDIR} ]; then
   echo 'Unable to find apache configuration directory: ' ${WORKDIR} >&2
   exit 1
fi

# Setup
cd ${WORKDIR}

echo 'Updating repository'
git pull

# Generate updated configuration
echo 'Generating new configuration'
./generate-expire-config > ${CONFIGFILE}

# Check if file has changed
cd ${APACHEDIR}

echo 'Checking for changes'
git diff --name-only --exit-code ${CONFIGFILE} > /dev/null

if [ $? -ne 0 ]; then
   echo 'Changes detected: Commiting updated configuration'
   git add ${CONFIGFILE}
   git commit -m '[CRON] Updated list of expired sites'

   echo 'Reloading apache'
   service apache2 reload
else
   echo 'No changes detected'
fi