Not registering a formatter for c files.

[Alistair401]

C/C++ tools version 0.14.2
VSCode version 1.18

Attempting to format a c file raises the error: Sorry, but there is no formatter for c files installed.
Only started happening after updating both VSCode and C/C++ tools.

[bobbrow]

Hmm... This is this second report of that. We don't pop up that message. What other extensions do you have installed?

[Alistair401]

No other extensions installed

[bobbrow]

I looked at the source for VS Code and found where this message comes from.

I can only repro this when "C_Cpp.formatting" is set to "Disabled". Do you have this set in your settings.json file?

[Alistair401]

"C_Cpp.formatting" is set to "Default"

[bobbrow]

That is the default setting, but do you have it overridden in your "User" or "Workspace" settings file?

The other possibility is that the extension is not actually running. I don't know what OS you're using, but can you see if there is a "Microsoft.VSCode.CPP.Extension.*" process running or not?

[aseeon]

@bobbrow
I think this might be connected to Issue #1240

And might be a bit more general of a problem.

[Alistair401]

Apologies for the delay.
Here are my user settings:

I haven't made any changes to the C_Cpp.formatting option.

I'm on Windows, using task manager I can't see a Cpp Extension running but I may be looking in the wrong place.

[bobbrow]

Thanks @aseeon, I saw that issue this morning and have a fix for it. @Alistair401, are you able to get it to work by applying the fix in #1240?

[rmrnc]

Same issue in VSCode on macOS. C formatting doesn't work after the update. It's not working with VSCode Insiders either

[bobbrow]

@rmrnc, can you try the fix in #1240?

[rmrnc]

Not sure whether the fix you've mentioned in #1240 was even meant to be applicable for this bug as well, but I tried anyway and it doesn't.

[rmrnc]

Sorry, our messages overlapped. No, unfortunately it doesn't.

[rmrnc]

Just to make sure, I've applied the fix in ~/.vscode/extensions/ms-vscode.cpptools-0.14.2/out/src/LanguageServer/client.js and this is how the file looks like now (lines 152-154)

if (vscode.workspace.workspaceFolders && vscode.workspace.workspaceFolders.length > 1) {
    storagePath = path.join(storagePath, serverName);
}

[bobbrow]

yes, that is the fix for #1240. You're saying that this doesn't fix the formatter issue? Do you have an instance of the extension's language server running (Microsoft.VSCode.CPP.Extension.darwin)?

[rmrnc]

Uh, I don't know why that is, but there appear to be multiple instances ...

$ ps aux | grep Microsoft.VSCode.CPP.Extension.darwin
xxx  78248   0.0  0.0  4546380    168   ??  S    Fri01PM   1:38.31 ~/.vscode/extensions/ms-vscode.cpptools-0.14.2/bin/Microsoft.VSCode.CPP.Extension.darwin
xxx  73977   0.0  0.0  4922016    168   ??  S    Fri10AM   1:44.85 ~/.vscode/extensions/ms-vscode.cpptools-0.14.2/bin/Microsoft.VSCode.CPP.Extension.darwin
xxx  97441   0.0  0.0  4276968   1032 s002  S+    2:20PM   0:00.00 grep Microsoft.VSCode.CPP.Extension.darwin
xxx  95100   0.0  1.0  4470928 163532   ??  S     1:05PM   0:50.78 ~/.vscode/extensions/ms-vscode.cpptools-0.14.2/bin/Microsoft.VSCode.CPP.Extension.darwin