Publish nightly releases to TestPyPI

[dcherian]

Is your feature request related to a problem?

From @keewis in #6645

if anyone can figure out how to create PEP440 (and thus PyPI) compatible development versions I think we can have a CI publish every commit on main to TestPyPI.

Describe the solution you'd like

No response

Describe alternatives you've considered

No response

Additional context

No response

[kmuehlbauer]

It's more a workaround. Maybe it's suitable for xarray.

In a project I maintain I'm doing the following before creation of tarball and wheels when uploading to TestPyPI.

# remove local appendix (+gXXXXXXXX)
$ echo 'local_scheme =  "no-local-version"' >> pyproject.toml
# prevent dirty-flag
$ git update-index --assume-unchanged pyproject.toml

[keewis]

ooh, that looks great!

To make updating pyproject.toml less of a hack (the setuptools_scm section might not be the last section in the future) we can probably read the file with tomli, add that setting and write it back using tomli_w.

[kmuehlbauer]

To make updating pyproject.toml less of a hack (the setuptools_scm section might not be the last section in the future) we can probably read the file with tomli, add that setting and write it back using tomli_w.

That's for sure more reliable. Didn't think about that in the first place.

[keewis]

apparently, local_scheme = "no-local-scheme" is broken when using setuptools>=60. I'll pin setuptools<60 in CI, hopefully that helps

[kmuehlbauer]

@keewis git restore -SW . will remove the changes to pyproject.toml.

[keewis]

it finally works: https://test.pypi.org/project/xarray/#history

Thanks a lot for the help, @kmuehlbauer!