clang-format formatting based on global vim settings

[xavier7179]

Feature description

I was wondering if there is a way to configure clang-format so that it looks for the file first, and, if not present, it does not only apply a preferred style but also sets indentation and tabs vs. space for Vim configurations? If so, could you make an example in the documentation?

[xiaoshihou514]

"File not present", meaning this is a temp buffer that's not saved yet?

[xavier7179]

I apologize. I needed clarification in the first place. I was referring to the -style=file option, which makes the command search for a .clang-format file (making it possible to have project-specific formatting rules)

[xiaoshihou514]

I think that's the default behavior given that the cwd is correct (:pwd)

[xavier7179]

Yes, indeed it is. Nevertheless, the style accepts a list of options that follow the file content structure. Unfortunately, there is no example of how to set them (and re-use the values of indents and tabs vs spaces that you can set with vim). Moreover, the command accepts a --fallback-style=<string> option that should fall back to a specific style when the file is missing. Although useful, <string> can only be a default style and not a more complex configuration as in the -style version. Thus, I was wondering if your plugin can handle it using an algorithmic approach...

[xiaoshihou514]

I guess I can create an example... That might take a while. Note that ft("foo"):fmt can take a function, check out the tests. https://github.com/nvimdev/guard.nvim/blob/cc8df48248eb795b71be21f7a30f08fc47a2c22d/spec/format_spec.lua#L71 If you managed to achieve what you wanted I am just going to put your solution as an example :)