`dvc exp run` - CLI flag that bypasses automatic Hydra composition

[StaszekM]

Sometimes I need to run an experiment with the exact state of my params.yaml as in the workspace. But if I have Hydra configured in my project, DVC CLI (dvc exp run without any additional command params) always hydrates my params.yaml with default configuration from Hydra, overwriting my desired state of params.

Of course I can manually pass -S flags to CLI and write all params exactly as I want and maintain the yaml file state, but this is cumbersome and error-prone.

Something like --bypass-hydra or --do-not-compose-hydra boolean flag would be great.

I can contribute to the repo if you agree it is a good option.

[skshetry]

If we had --config support in exp run, then it'd be easier to have this using:

dvc --config hydra.enabled=false exp run

But we don't, and I don't think it's worth introducing this for these.

What you are saying makes sense, please feel free to propose a PR. Regarding option name, I am not sure (some other options that come to my mind are --no-hydra, and --disable-hydra).

[StaszekM]

Hi, I pushed #10866, please let me know if something needs further work