Refactors all Terraform file path logic into a centralized tfpath package. This consolidates all path construction into a single, testable Layout type.

Instead of passing aroundstring for directories, pass around theLayout which has the file location methods on it.

This design is also to support an experiment where the filepaths will be changed if the experiment is enabled. Allowing for a singular struct to determine filepath locations based on some config. The code that uses said paths will remain unchanged.

Prior Art

Inspired from ourcli handling of config files

Naming

I was going back and forth on names. Some others I thought about:

• tfpath
• tfdir
• tflayout
• terradir

Thoughts

Should possibly addafero.FS to this type. Then our tests can run without using the actual FS 🤷