Add a clang-format workflow

[mcarans]

Looks like I missed the pure C files lol

[mcarans]

Actually was just wrong clang-format version - 22 works

[LW-archlinux]

clang-format supports several styles and also allows custom ones .

Since oolite is published under the GPL license and not tied to a specific compliter or connected to one of the listed corporation styles the GNU coding style seems like a sensible choice.

As changing coding styles later tends to be a lot of work, this needs to be talked about.

[mcarans]

GNU is a C/C++ style, not an Objective-C style.

[LW-archlinux]

That is not a useful answer, maybe that's because I didn't make the question clear enough .

Rephrasing

• Which coding style does clang-format use now for oolite ?
• Where is this style documented ?
• Has there been a discussion about which coding style Oolite should follow ?

[mcarans]

GNU coding style seems like a sensible choice

I was responding to this point when I said "GNU is a C/C++ style, not an Objective-C style."

As mentioned in the other PR already the style is webkit. Oolite was developed on Apple Macs in an Apple language so choosing an Apple style seemed like a no brainer to me. I assume the details of the style are available somewhere in the clang-format docs. It looks readable and clean to me as someone who has to code in the language and to understand the existing code.

The discussion was the usual with PRs ie. between submitter of PR and approver(s) of PR as well as any commenters if any problems are spotted. Once it was approved, PR was merged.

[LW-archlinux]

The process to start using clang-format seems to have started in issue #572 and spread over #745 , #748 , #749 and this PR but there never was a discussion about clang-format / style as a whole.

As for the style documentation for webkit

https://clang.llvm.org/docs/ClangFormatStyleOptions.html#configurable-format-style-options says

WebKit A style complying with [WebKit’s style guide] (https://www.webkit.org/coding/coding-style.html)