UV publish with index name does not read environment credentials

[sfriedowitz]

I was very excited to see the functionality with uv publish --index <index> come out in version 0.5.8 with this PR #9694, but I don't think it behaves quite as I expected. It does not appear that publishing reads the UV_INDEX_MYINDEX_USERNAME and UV_INDEX_MYINDEX_PASSWORD for credentials when publishing.

Is this expected behavior? And if so, would it be possible to add support for reading credentials from those existing environment variables?

[charliermarsh]

I think it seems reasonable to pass the configuration to the publish URL. What do you think, @konstin @zanieb?

[zanieb]

Oh interesting. Do you expect the credentials for publishing to be the same as the ones for reading?

I'd expect them to be used, but I worry a different credential will be required?

[charliermarsh]

Is the implication that you might want a different environment variable?

[sfriedowitz]

At least for the private PyPI repository we run in my organization, the publishing and reading credentials are the same.
So it seemed intuitive that the UV_INDEX_ variables would be used.

But perhaps the UV_INDEX variables could be used in the absence of the UV_PUBLISH variables?

[konstin]

We can add UV_INDEX_ as lowest priority credential source, behind CLI,UV_PUBLISH_ and (if used) the keyring.

[sfriedowitz]

We can add UV_INDEX_ as lowest priority credential source, behind CLI,UV_PUBLISH_ and (if used) the keyring.

That would be perfect, thank you !