Hydra: Sweep over all options of default with one key

[natolambert]

🚀 Feature Request

Sweep over all options of default with one key, such as *

Motivation

This would give us cleaner command line arguments.

Pitch

Example of a current run in our conf directory:

.
├── config.yaml
├── dynamics_model
│   ├── de.yaml
│   ├── d.yaml
│   ├── env.yaml
│   ├── pe.yaml
│   └── p.yaml

We could change

python pets/main.py -m env=cartpole dynamics_model=p,pe,d,de random_seed=1,2,3 mode=debug

to

python pets/main.py -m env=cartpole dynamics_model=* random_seed=1,2,3 mode=debug

I'm not sure if this is tractable, but could be fun :).

Are you willing to open a pull request? (See CONTRIBUTING)
If I am pointed in the right direction, I could attempt.

[omry]

BasicSweeper improvements will come in 1.1.0

[imanishbarnwal]

Hello @natolambert, can I take this issue?

[omry]

Hi @imanishbarnwal, this is planned for Hydra 1.1. there is some work going on to define a grammar that covers this as well.
See #752 and the linked document.

[omry]

https://hydra.cc/docs/next/advanced/override_grammar/extended