Use Ruff for linting

[stchris]

https://github.com/charliermarsh/ruff replaces flake8 + black (and can also auto-fix lots of things).

$ time make lint
ruff check .
make lint  0.01s user 0.03s system 47% cpu 0.091 total

[tillprochaska]

What is the advantage of using this action over just make lint (which will now call ruff, too)?

[stchris]

None, I guess. I will change it to be consistent, making sure we use the same version we have pinned.

[tillprochaska]

Hm, but black doesn’t replace a formatter, right?

As a project, Ruff is designed to be used alongside Black and, as such, will defer implementing stylistic lint rules that are obviated by autoformatting.

https://beta.ruff.rs/docs/faq/#is-ruff-compatible-with-black

[stchris]

You are totally right, my bad. Reverting this.

[tillprochaska]

Left two comments/questions, but in general, I like ruff and am fine with whatever tooling everyone else prefers :)

[stchris]

Thanks for your careful review and great comments. I've made the changes and adapted the corresponding ingest-file PR as well. 👍

[tillprochaska]

🎉