Allow package-data for stubs packages

[cdce8p]

I'm currently working on moving the stubs_uploader from setup.py to pyproject.toml. It's used to build and upload the typeshed stubs packages automatically. While doing so I noticed that setuptools rejects stub package names like requests-stubs for package-data. I know that .pyi and py.typed files are auto-included. Each stubs package also contains a METADATA.toml file which should be included in the distribution. Do to the nature of the project, it would be desirable to use include-package-data = false and instead specify the wanted files directly.

This PR slightly modifies the schema to allow for that. If accepted, it would be great if a new version could be released so I include these changes in setuptools.

https://github.com/typeshed-internal/stub_uploader/blob/cbdc0b85972e476b4dedbd626cd12dadf7dd60a9/stub_uploader/build_wheel.py#L51-L84

[cdce8p]

/CC @abravalheri

[abravalheri]

Sorry for the delay.

I think that this is very reasonable. Can we somehow re-use the existing definition?

https://github.com/abravalheri/validate-pyproject/blob/v0.24.1/src/validate_pyproject/plugins/setuptools.schema.json#L251-L261?

If accepted, it would be great if a new version could be released so I include these changes in setuptools.

Sure, it may take a little bit however, I want to wait for the situation to stabilise.

[cdce8p]

Sorry for the late reply. I somehow lost track of it.

I think that this is very reasonable. Can we somehow re-use the existing definition?

https://github.com/abravalheri/validate-pyproject/blob/v0.24.1/src/validate_pyproject/plugins/setuptools.schema.json#L251-L261?

Unless I'm missing something, it isn't really possible unfortunately. While the package name itself is normalized by setuptools, I don't think the name in the package-data dict is. Thus the best we can probably do is add a separate validation function for it to reduce duplications. See 80a6d7d