Ignore certain file types / directories in `style_file()`

[pat-s]

I would like {styler} to either

• ignore certain file types (in my case .yml files).
• certain directories (in my case inst/).

I know this exists in style_pkg(exclude_dirs = ). However, when invoking {styler} via {precommit}, style_file() is called which does not have this option.

This might be a bit tricky since style_file is explicitly called on a path by {precommit} and hence some preprocessing before calling it might need to happen?

[lorenzwalthert]

I don't think this is a styler problem, although #319 might be a related issue. If it's only about using pre-commit, use the exclude: key. You can find documentation and example here: https://lorenzwalthert.github.io/precommit/articles/available-hooks.html#spell-check

[pat-s]

Will setting a file type in exclude of the spell-check hook have an effect of what happens in the style-files hook? According to your link it might be as you do some copying but I cannot get it working.

I tried excluding all YAML files by adding .*\.yml to it and adding exclude to the style-files hook.
Still, my YAML files get styled.
What am I doing wrong?

Feel free to move the issue to {precommit} :)

[lorenzwalthert]

No you have to set the exclude: key in the styler hook. well yml or yaml? Like this maybe?

# ...
    -   id: style-files
        exclude: >
            (?x)^(
                .*\.yaml
            )$

[pat-s]

Thanks. Still gets styled. And yes, it is .yml.

Does it matter that the files lives in inst/?

[lorenzwalthert]

I don't get why you want to exclude them from the hook, they are not going to be changed anyways. What do you mean with gets styled? Not skipped from the pre-commit output during git commit? It should not matter, but you can try to move it to the root and see what happens.

[pat-s]

I don't get why you want to exclude them from the hook, they are not going to be changed anyways. What do you mean with gets styled? Not skipped from the pre-commit output during git commit?

The styler hook also styles .yml files for me. Not the ones listed in .github or .travis.yml but .yml files which live in inst/.
Specifically not the code gets styled, but superfluous blank lines.
However, in my case these are not superfluous but intended.
Or am I wrong and styler is not the hook responsible for this action?

[lorenzwalthert]

Are you sure it's the styler hook? styler can only style R files and friends (Rnw, Rmd, Rpfofile etc). I have the stong apprehension that it is in fact a hook like https://github.com/lorenzwalthert/precommit/blob/master/.pre-commit-config.yaml#L45 or similar. Can you show the output of git commit that changes the file or maybe easier for you, the .pre-commit-config.yaml of the repo of concern?

[pat-s]

Ahh! I did not see this hook before.

Just tested it and indeed it is the end-of-file-fixer hook.
Works fine if I exclude .yml there 🎉

Sorry for the trouble!
I was also confused why styler would touch .yml files 😅

[lorenzwalthert]

Yeah, me too haha. Good to have some context sometimes, then tricky problems become simple 😊.