clang-format: Use style configuration file

[xiaguan]

Feature description

大部分C/C++工程采用clang-format控制格式，并且都会放到根目录下，仓库的format不会读取这个文件，导致我如果开启format-on-save的话，它不能按照我预期去格式化。我想如果增加这个feature对大部分C/C++工程都是很好用的。如果不增加这个feature的话，是否可以在wiki中增加如何自定义format格式的方法？
万分感谢。

Additional information

No response

[Jint-lzxy]

That's possible. Instead of specifying the options explicitly, change this line:

nvimdots/lua/modules/completion/efm/formatters/clangfmt.lua

Line 1 in 87812fc

return { formatCommand = "clang-format -style='{BasedOnStyle: LLVM, IndentWidth: 4}'", formatStdin = true }

to:

return { formatCommand = "clang-format -style=file", formatStdin = true } 

[ayamir]

Just remove all of args after clang-format, it will respect your project's format style defined by .clang-format. Like this:

return { formatCommand = "clang-format", formatStdin = true } 

No need to assign -style=file argu.

[Jint-lzxy]

If you would like to learn more details, visit: docs/ClangFormat#standalone-tool

[xiaguan]

thanks