[Feature Request] Skip certain files during plugin discovery

[shagunsodhani]

🚀 Feature Request

When scanning the plugins directory, certain files should be skipped.

Motivation

Is your feature request related to a problem? Please describe.

Plugin discovery imports all the modules in the plugins directory. This can slow down Hydra startup. One example is Ax plugin slowing down Hydra #476

Pitch

Describe the solution you'd like
When scanning plugins, ignore files starting with "_".

Describe alternatives you've considered

• We could put certain files outside the plugins directory but that separates the logic that should live together.

Are you willing to open a pull request? (See CONTRIBUTING)

Yes :)

Additional context

Add any other context or screenshots about the feature request here.

NA

[shagunsodhani]

Fixed in 67a525b

[omry]

Next time you can put a "closes #494" in the PR, and it will get closed automatically when it's merged.