Add an option to golangci-lint fmt to check if the code is formatted

[sorairolake]

Welcome

• Yes, I've searched similar issues on GitHub and didn't find any.
• I agree to follow this project's Code of Conduct

How did you install golangci-lint?

go tool

Your feature request related to a problem? Please describe

In golangci-lint v1, we could check if the code is formatted with golangci-lint run -E gofmt, golangci-lint run -E goimports, etc. But I couldn't find a way to do this with golangci-lint v2.

Describe the solution you'd like

golangci-lint fmt --check

Describe alternatives you've considered

golangci-lint fmt
git diff --exit-code

Additional context

No response

Supporter

• I am a sponsor through GitHub or OpenCollective

[boring-cyborg]

Hey, thank you for opening your first Issue ! 🙂 If you would like to contribute we have a guide for contributors.

[ldez]

Hello,

The option already exists, it's golangci-lint fmt --diff.

https://golangci-lint.run/usage/configuration/#fmt

[sorairolake]

@ldez I knew about that option, but I assumed it only show the difference and didn't know it can be used for this purpose. Thanks.