Is there any tools to check rego grammer?

[yaohy2014]

Is there any tools to check rego grammer?

[anderseknert]

Hi there @yaohy2014! There are a few options, depending on what you want:

• You can use the opa check command to find syntax errors in your Rego files.
• Use opa check --strict to enable even more checks, like unused variables, etc.
• Use the linter Regal for checking your Rego files not just for errors, but for advice on best practices, style, performance and much more.

Let me know if there's anything you're missing or would like to know more about.

[yaohy2014]

Thanks a lot.
Is there any libararies? I want to call a function to check the rego file or rego files in a directory.

[anderseknert]

You can use OPA itself as a Go library. Just see the code for the check command if you want to do something like that programmatically.