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I want to define project root path in Hydra config file without hardcoding it. 'til now couldn't find any feature of Hydra that can imply the path!

E.g., suppose we have the following project structure:

project-name
├── conf
│   ├── config.yaml
│   ├── config.py 
├── src
│   ├── model.py

Now I want to define the project path in config.yaml up to project-name. For example project_path: C:\\Projects\\project-name. However, instead of hardcoding C:\\Projects\\, I want Hydra to figure out for me what the preceding path is up to and including project-name.

With python I can do something in config.py like:

str(Path(__file__).parent.parent.absolute())

However, I want to get rid of config.py, and do all the configurations in config.yaml

Any ideas?

mbrb
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1 Answers1

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This is not supported by Hydra. The concept of a root directory is not defined well enough. You can use OmegaConf custom resolvers to implement your on logic on a specific node but it's not clear to me how you can achieve what you are trying to do in a clean and reusable way.

Omry Yadan
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  • this is all implicit. I want to define the path in YAML file like `${hydra:runtime.cwd}` but then for the project root path. – mbrb Oct 31 '22 at 08:09
  • It's not clear what you are trying to achieve. project "root path" can mean about a million things. – Omry Yadan Nov 01 '22 at 09:25
  • I have updated the question description. Please see the example. – mbrb Nov 02 '22 at 10:25
  • hydra.runtime.cwd is managed by Hydra itself. Do you want to get the parent of that directory from your config file? – Omry Yadan Nov 03 '22 at 11:27
  • I want to get the project directory; parent cwd doesn't ensure the root directory. A script could be executed from any depth in the project. – mbrb Nov 07 '22 at 15:20