Clangd doesn't work correctly when using the windows path separator (\)

[lh123]

• compile_commands.json

[
    {
        "directory": "G:\\VsCode\\STL",
        "command": "g++ -IG:\\VsCode\\STL\\include -o G:\\VsCode\\STL\\main.cpp -c G:\\VsCode\\STL\\main.cpp",
        "file": "G:\\VsCode\\STL\\main.cpp"
    }
]

• log

I[11:37:12.422] Updating file g:\VsCode\STL\main.cpp with command 
[G:\VsCode\STL]
g++ --driver-mode=g++ -IG:VsCodeSTLinclude -o G:VsCodeSTLmain.cpp -c G:VsCodeSTLmain.cpp -fsyntax-only -resource-dir=D:\lib\clang\9.0.0\

[lh123]

This problem caused by Triple.getEnvironment will return EnvironmentType::GNU when compiling clangd with MinGW-W64.

I think we shhould always use TokenizeWindowsCommandLine on Windows.

https://reviews.llvm.org/D70164?id=229011

[jsanchez19]

I'm not familiar with Phabricator linked above. @lh123 has the fix been merged to a release? I'm on clangd 12.0.0 and still seeing the error Found unexpected ':' while scanning a plain scalar.

Is there a workaround for clangd 11 or 12?

EDIT: I should clarify, that this error I'm seeing is from the .clangd configuration file on the root directory of my project. Also, I'm on Windows 10 and I'm attempting to specify absolute paths to the toolchain directory as include paths, something like this:

.clangd

CompileFlags:
    Add: [
        -DSOME_SYMBOL=symbol_definition,
        -IC:\\path\\to\\compiler\\include
    ]

clangd error: Found unexpected ':' while scanning a plain scalar

[jsanchez19]

20 minutes later I realize that the error was due to having invalid YAML in the .clangd file. Surrounding the string that includes a colon in quotes resolves the issue. The .clangd file should look like this:

CompileFlags:
    Add: [
        -DSOME_SYMBOL=symbol_definition,
        "-IC:\\path\\to\\compiler\\include"
    ]

Sorry for the spam!