This script backups all Joomla websites found below a specified directory. This script works for Joomla websites versions 1.0 - 5.x.
It will create a tar gzip (.tgz) or zip (.zip) file for each website and store it in a specified backup directory.
Optionally, the script will upload the backup of each website to a Hetzner Storagebox with the rclone program.

The joomlabackups script uses the jfunctions script to retrieve information of the found Joomla websites.
The jfunctions script reads the configuration.php and other files to determine the database credentials, website name and Joomla version.

The script does the following:

1. Search all folders below the startdir folder to see if there is a configuration.php file.
2. Extract database credentials, website name and Joomla version.
3. Create a database dump of the joomla database.
4. Create a backup of the website folder (including the database dump) and store that in the backup directory.
5. If specified (-u option), upload the backup to a Hetzner Storagebox.
6. If specified (-t option) it adds a date/time stamp to the backup file name.
7. Remove database dump after the backup is created.
8. If specified (-d option) delete the local backup file after it is uploaded to the Hetzner Storagebox.

Syntax: joomlabackups [-z] [-t] [-u] [-s] [-d] [-h]

All options are optional.
-z: create a .zip backup file instead of a .tgz file
-t: add a date/time stamp to the backup file name
-u: upload the backup to a Hetzner Storagebox
-s: silent, do not display any messages, only errors will be displayed
-d: delete the local backup file after it is uploaded to the Hetzner Storagebox
-h: display help

The -s option is useful if you want to run the script as a cron job.

• Rclone installed and configured on your server to upload files to a Hetzner Storagebox.
  See also: RClone website and Hetzner Storagebox with RClone.
• Zip installed if you want to create .zip backups instead of .tgz backups.

1. Make sure rclone is installed and configured on your server to upload files to a Hetzner Storagebox.
2. Download this repository.
3. Copy the scripts joomlabackups and jfunctions to a directory in your PATH, for example to /usr/local/bin.
4. Make the scripts executable with chmod +x /usr/local/bin/joomlabackups /usr/local/bin/jfunctions
5. Optionally change the variables in the joomlabackups script to match your server setup:
   STARTDIR (line 23): the directory where the script starts searching for Joomla sites
   STOREPATH (line 25): the directory where the backups are stored
   RCLONEDEST (line 27): the name of the rclone destination to upload the backups to (see ~/.config/rclone/rclone.conf)
6. Optionally create a cronjob the run the joomlabackups script at regular intervals.
   An example cronjob that runs the script every day at 3:00 AM:
   0 3 * * * /usr/local/bin/joomlabackups -u -d -s

If you have a website in your startdir folder that you don't want to backup, you can do the following:
Create a file .nobackup in the root of that website folder. This can be done with the command
touch /path/to/website/.nobackup

When the backup scripts finds this file, it will skip the backup of that website.

The backups are stored in a folder with the name of the website. A subfolder called site is created below that folder.
Below the site folder, three folders are created: day, week and month.

All folders are created automatically by the script.

In the day folder, backups for each day except Sunday are stored.
In the week folder, backups of the last 6 Sundays are stored.
In the month folder, backups of the last 12 months are stored.

The day backup is run every day, Monday to Saturday.
The week backup is run every Sunday.
The month backup is run on every first day of each month.

With this backupscheme, you keep backups for the last 6 weekdays, the last 6 Sundays and the last 12 months.

All backups will be rotated automatically.

Daily backups have the abbreviated dayname in the backup. For example, the Monday will be named as /home/sitename/site/day/sitename.Mon.tgz
The next Monday, sitename.Mon.tgz will be overwritten with the new Monday backup.

The filenaming for weekly backups is different. The first week backup will be named as /home/sitename/site/week/sitename.0.tgz
The next week, sitename.0.tgz will renamed to sitename.1.tgz and the new backup will be named sitename.0.tgz.
The third week sitename.1.tgz will be renamed to sitename.2.tgz and sitename.0.tgz will be renamed to sitename.1.tgz and so on.
This will go on until there are 6 weekly backups, numbered from 0 (newest week backup) to 5 (oldest week backup).

Monthly backups have the month number in the filename. The January backup will be named as /home/sitename/site/month/sitename.01.tgz
The February backup will be named as sitename.02.tgz and so on until December.
The next January, sitename.01.tgz will be overwritten with the new January backup.