this post was submitted on 20 Mar 2025
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Programming
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Do formatting and linting and such autofix issues automatically as part of pre-commit checks. That way they don't end up as part of the CI.
You need them in CI anyway to check people have actually done that, but yeah you definitely don't need to have CI automatically fix formatting and commit the fixes. That's crazy.
No, you don't.
To check if people have done what - committed? That's the only thing they need to do, and they'll stumble upon a roadblock immediately if the typecheck or lint fails.
Committing itself won't be possible... That's why we have automated pre-commit checks that don't depend on people remembering to do them manually.
To check that people ran the pre-commit linters.
That's not how pre-commit hooks work. They're entirely optional and opt-in. You need CI to also run them to ensure people don't forget.
They're optional if you make them optional. I didn't. You do as you please. 😄
No, they're inherently optional in Git. There's no way to "check in" a git hook. You have to put in your
READMEYou definitely need to actually check the lints in CI. It's very easy though, just add
pre-commit run -ato your CI script.pre-commit also has a free service for open source GitHub repos too. They’ll even push an autofix commit for you if your tools are configured for it
Agreed. The idea of throwing code up at the CI and expecting it to fix my mistakes seems like a bad habit to me.
Yep, I'd say so too. The moment I read the part about formatting in the CI, I thought to myself: I don't think GitHub Actions are the problem at hand. 😄
If it's open source I'd still add it, because a lot of people can't follow basic instructions.
They don't have to follow anything except try to commit their changes. Won't be possible even locally if linting or typechecking fail.
Pre-commit hooks can’t be installed automatically and most people won’t even know they exist.
This is the way. I do my checks on pre push because my team has a PR driven workflow. I also have an alias to
run-tests && git push origin HEADsince my tests are expensive (minutes to run thousands of tests), and I didn't want that in a git hook.