Create backup archive of Drupal project files

backup_drupal_project.sh

#!/bin/bash

#
# Settings
#

DIRECTORY="drupal-project"

#
# Begin
#

START_TIME=$SECONDS

#
# Create file name
#
NOW=$(date +"%m%d%Y-%H%M%S")
function create_file_name() {
	FILE="backup__"
	FILE+=$1
	FILE+="__"
	FILE+=$2
	FILE+="-"
	FILE+=$3
	FILE+=".tar.gz"
}
COUNTER=1
create_file_name $DIRECTORY $NOW $COUNTER
while [[ -f "$FILE" ]]; do
	((COUNTER++))
	create_file_name $DIRECTORY $NOW $COUNTER
done

#
# Directory size
#
echo "Calculating size of $DIRECTORY..."
DIRSIZE="`du -hs $DIRECTORY`"
DIRSIZE=${DIRSIZE%G*}
echo "Its $DIRSIZE GB, starting backup to $FILE..."

#
# Create archive
#
tar -czf $FILE $DIRECTORY --exclude=$DIRECTORY/.git --exclude=$DIRECTORY/web/sites/default/files/php --exclude=$DIRECTORY/web/sites/default/files/styles --exclude=$DIRECTORY/web/sites/default/files/js

#
# Information
#
ELAPSED_TIME=$(($SECONDS - $START_TIME))
FILESIZE="`du -hs $FILE`"
FILESIZE=${FILESIZE%G*}
echo "Done. Archive size is $FILESIZE GB, elapsed time: $(($ELAPSED_TIME/60)) min $(($ELAPSED_TIME%60)) sec"