Fix SetuptoolsDeprecationWarning about using --global-option

[adamchainz]

Fixes #2478.

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[asottile]

what versions of setuptools does the new argument require ?

[adamchainz]

I tested down to setuptools 50 and got no error. But, the first mention of --build-option in the setuptools source was introduced alongside the deprecation in setuptools 63: pypa/setuptools#3380 . It seems older versions just ignore all unrecognized arguments.

I found that --build-option was specified PEP 517: https://peps.python.org/pep-0517/#config-settings , but only recently implemented.

If we want to ensure that gztar is built on older setuptools, we could do a version check?

[asottile]

@gaborbernat I don't think this could go out as is given the above

[gaborbernat]

I guess the question here if older setuptools just ignored this flag or actually used it 🤔 Wonder if need this flag at all or we can just drop it 🤔

[asottile]

I believe on windows the flag is important -- otherwise it'll default to zip ?

[gaborbernat]

Would that cause a problem for pip?

[asottile]

it shouldn't be a problem for pip -- but I thought tox tries to read the tgz -- maybe I'm misremembering how this works -- not at a computer to check

[gaborbernat]

tox does not read the file 🤔

[asottile]

this is what I was thinking of but looks like it already supports zip:

tox/src/tox/package/local.py

Line 52 in d98f589

_REGEX_FILE_NAME_WITH_VERSION = re.compile(r"[\w_+.-]+-(.*)\.(zip|tar\.gz)")

we can probably drop the option entirely then

[adamchainz]

That seems reasonable to me too, done in #2497.