#!/bin/bash

dummy_s=
mail_list="user@gmail.com"

a=$@

#Get interval
int=`echo $a | awk '{ print $NF }'`

#Remove interval from arguments
aa=`echo $a | sed '$s/ *\([^ ]* *\)$//'`
#Get config name with fake interval
config=`rsnapshot  -v $aa kjszdghm34w 2>&1 | awk '/ERROR/ {print $6}'`

#Get snapshot root
sroot=`cat $config | awk '$1 ~ /snapshot_root/ {print $2}'`
co=$sroot/control
#touch "$co"

cleanup_old() {
        $dummy_s mv "$sroot"/"$int".0 "$sroot"/"$int".0.failed
        $dummy_s rm "$co"
}

send_notification() {
(echo ERROR: Control file exists. Previous backup has not completed; \
ls -l $co) \
| mailx -s "Rsnapshot has failed on `hostname`" $mail_list
}

if [ -f "$co" ]; then
echo ERROR: Control file exists. Previous backup has not completed
send_notification
cleanup_old
fi

$dummy_s touch "$co"
$dummy_s rsnapshot  $@
$dummy_s rm "$co"; logger backup completed $config