Create rules to auto-assign labels

I want the ability to auto-assign labels based on rules.

For example, if a file name contains "tribe" (e.g. "cliff-tribe-modify-posts.php" or "why-tribe-recycles.md") then assign it the "MyTribe" label.

Ideally, there would be AND and OR options with nesting, but even something really simple to start would be excellent.

Ideas:

• file extension
• file name contains
• file content contains
• has multiple files in the snippet (2 php files)
• has multiple types of files in the snippet (1 php file and 1 md file)