#			backin_N_packin.sh
#			------------------
#
# Compress a folder and store it in given location with a
# specific system user owner
#
#		SYNOPSIS
#       backing.sh [FILE] [DEST] [SRC] [OWN] [RET]
#

#!/bin/bash


DEST="$2"			    # [DEST] Complete path to store file in
SRC="$3"			    # [SRC] Folder to be backed up
OWN="$4"			    # [OWN] Final owner of the file
RET="$5"			    # Retention integer for days older then, to delete files
				    #	if 0 don't delete anything
COMPRESSER="tar cvfj"		    # The utility used to compress the data and its arguments
FILEXTENSION=".tar.bz2"		    # The file extension, usually related to the compression utility
NOW=$(date +"%d-%m-%Y")		    # The current date formated with, day/month/year
FILE="$1.$NOW$FILEXTENSION"	    # [FILE] Name of the backed up file

$COMPRESSER $DEST/$FILE -C $SRC .   # Start the backup/compress main process

back=$!							# get the pid number of the backup/compress comand
wait $back						# and wait for it to finish
logger "Website dated backup in $DEST - [WEB-BACKUP]"	# Log backup time in journalctl
echo -e "\nWebsite dated backup complete.\n" 
chown $OWN:$OWN $DEST/$FILE				# Change owner of the file

if [ $RET != 0 ]
then
	find $DEST -name "$1.*$FILEXTENSION" -type f -mtime +$RET -delete		    # Apply retention plan
	logger "Backups $1.*$FILEXTENSION older then $RET days deleted - [WEB-BACKUP]"	    # Log backup delete time in journalctl
	echo -e "Backups $1.*$FILEXTENSION older then $RET days deleted - [WEB-BACKUP]"
else
	echo -e "Retention plan OFF.\n"	
fi