ENH Add support for config files

[jeremiedbb]

Fixes #64

This PR adds the possibility to set the configuration either from pyproject.toml or from setup.cfg.

I chose to support setup.cfg as well because I read a lot of discussion regarding the transition to pyproject.toml and it seems that it has not been adopted by a bunch of projects. The main reason I found was the issue that it automatically triggers isolated builds even when you want to install in editable mode. Since cython-lint is used exclusively by projects that do have some compilation, I thought it was more convenient to support setup.cfg.

[MarcoGorelli]

thanks for your PR!

I think what we also need is some example of how to set configuration in the readme

Unless there's an example of a package which uses cython-lint but can't use pyproject.toml, I'd suggest dropping setup.cfg, let's keep things simple

[jeremiedbb]

Unless there's an example of a package which uses cython-lint but can't use pyproject.toml, I'd suggest dropping setup.cfg, let's keep things simple

Okay, let's keep it simple for now. We can add support for setup.cfg if there's demand

[MarcoGorelli]

🤔 not sure why half the jobs are cancelled without even starting

[jeremiedbb]

Do you know why the ubuntu jobs are cancelled ? I just see them cancelled but no detail is given

[MarcoGorelli]

I don't know - want to try ubuntu-latest instead of ubuntu-18.04?

[jeremiedbb]

I was looking at https://github.blog/changelog/2022-08-09-github-actions-the-ubuntu-18-04-actions-runner-image-is-being-deprecated-and-will-be-removed-by-12-1-22/

It seems that the image is deprecated and should have been removed a while ago :)

[MarcoGorelli]

awesome! just needs a little example in the readme, then we can merge

We can add support for setup.cfg if there's demand

sure - OK if I add you as collaborator?

[jeremiedbb]

Sure, no problem, thanks !