Script to execute the 'cron' task with Barman Postgres backup system

backup-pgbarman-cron.sh

#!/bin/bash
#
# Script to execute the 'cron' task with Barman Postgres backup 
# system.
#
# Do NOT confuse this with a **crontab** task: this script
# only do the archive of the continuous WAL files sent
# by PostgreSQL, but it's a good practise execute this
# script periodically with the Unix Cron system.
#
# See the `PG Barman` home page for more information:
# http://www.pgbarman.org
#
# Author: (2014) Mariano Ruiz <mrsarm@gmail.com>
#

# Duplicity command line options
BARMAN_OPTS=""

# Database instance to backup
DATABASE="main"

# Log file
LOG="/var/log/backup-pgbarman-$DATABASE.log"

# Date format printed into the log
DATE_FORMAT="+%Y-%m-%d %T"

echo "`date "$DATE_FORMAT"` INFO  : Starting to perform PG Barman 'cron' task ... " 2>&1 | tee -a $LOG

T_START=$(date +%s)  # To calculate the process time

barman cron $BARMAN_OPTS 2>&1 | tee -a $LOG

EXIT_CODE=${PIPESTATUS[0]}
T_DIFF=$(( $(date +%s) - $T_START ))

if [ "$EXIT_CODE" != "0" ]; then
	echo "`date "$DATE_FORMAT"` ERROR : ... Performing PG Barman 'cron' task done with errors (elapsed time `date -u -d @"$T_DIFF" +'%-Hh %-Mm %-Ss'`). Check the log above." 2>&1 | tee -a $LOG
	exit -1
fi

echo "`date "$DATE_FORMAT"` INFO  : ... Performing PG Barman 'cron' task done at `date -u -d @"$T_DIFF" +'%-Hh %-Mm %-Ss'`." 2>&1 | tee -a $LOG
exit 0