Add tofu fmt command as linter

[eloyred]

Is your feature request related to a problem? Please describe.
Since the release of OpenTofu as an open-source alternative to Terraform, it would be desirable to add the execution of the tofu fmt command as a linter.

Describe the solution you'd like
Similar to the TERRAFORM_TERRAFORM_FMT linter, add a linter that executes the tofu fmt command instead of terraform fmt.

Additional context
https://opentofu.org/blog/the-opentofu-fork-is-now-available/

[nvuillam]

@eloyred added in beta , please can you test and confirm it works ok for your use case ? :)

https://megalinter.io/beta/descriptors/terraform_tofu_fmt/

[eloyred]

Thank you so much! I tested it using the beta image and it works perfectly.

For IaC development workflows, the following command as a linter would also be useful:
tofu validate

Currently, you don't have an equivalent to these commands with terraform, but if you see the point, I think it would be a great addition considering that the tofu binary has already been added.

[nvuillam]

That would indeed be a good addition :)
Would you like to submit a PR ? If you have claude or equivalent, it's quite easy to add a linter with skill /add-linter :)

[eloyred]

Perfect, I'll try to submit the pull request as soon as possible. I've created the corresponding issue: #8793