Backup and restore CLI

Moodle oddly omits the ability to perform backup and restore via the CLI. Consider that fixed.

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Installation

1. Install this directory at /admin/tool/backupcli.
2. Execute the usual Moodle upgrade process.
3. ???
4. Profit.

Usage

Backup a course:

$ php admin/tool/backupcli/cli/backup.php --type=course --id=123 --file=$HOME/backup-123.mbz

Or section:

$ php admin/tool/backupcli/cli/backup.php --type=section --id=123 --file=$HOME/backup-123.mbz

Or activity:

$ php admin/tool/backupcli/cli/backup.php --type=activity --id=123 --file=$HOME/backup-123.mbz

Restore a backup to a new course in th specified category:

$ php admin/tool/backupcli/cli/restore.php --file=$HOME/backup-123.mbz --categoryid=1

Or overwrite the specified course, deleting existing content:

$ php admin/tool/backupcli/cli/restore.php --file=$HOME/backup-123.mbz --courseid=123

If you're backing up a course and restoring to the same site, be sure to use the --samesite option for a hefty improvement in performance.