[clang] [clang-format] Add -r option for recursing into directories (PR #160299)

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mydeveloperday wrote:


> Thanks for the comments. It may be a while, but I'll try and look for a smarter alternative (I do agree that a glob pattern would be nicer from a user's perspective).

Take a look here
https://llvm.org/doxygen/classllvm_1_1GlobPattern.html

> *[/\\]foo.{c,cpp} will match (unix or windows) paths to files named foo.c or foo.cpp.

I've no idea if its any good but it might help... I think if we can have a solution that is more than just -r then I would feel more comfortable like @HazardyKnusperkeks  it might just be more acceptable especially as tools like prettier support this, it kind of gives us a precident.  (see https://globster.xyz/) for examples

https://github.com/llvm/llvm-project/pull/160299