How to "push" or "sync" project settings changes to SourceKit-LSP?

[NSExceptional]

I suspect this is something VS Code extension authors will have to implement if it isn't something SourceKit-LSP supports already. But I'm here to find out whether it does, before I start a game of phone tag by opening an issue on a different repo that just ends up being a separate issue here anyway.

Consider the following scenario:

1. I'm editing a CXX project in VS Code and I see a warning that I don't want enabled
2. I go into Xcode and disable the warning
3. I observe the warning does not disappear from VS Code, so I run the "Reload Window" command to restart the language server
4. I observe the warning is gone now
5. The reverse holds true as well and the warning reappears when re-enabled and the server restarted

Is there some message the Swift extension can send to the LSP to cause it to reload the project settings without restarting? Or, can the LSP itself monitor the project file for changes and update itself and remove the warning(s) on its own?

[ahoppen]

If I understand you correctly, you are using a BSP server to provide build settings, correct? In that case the BSP server can watch for file changes that affect the build settings by specifying watchers in the build/initialize response as described in https://github.com/swiftlang/sourcekit-lsp/blob/main/Contributor%20Documentation/BSP%20Extensions.md. It can then notify SourceKit-LSP about the build settings change by sending a buildTarget/didChange notification to SourceKit-LSP. The editor should not be involved here to make all of this functionality work across editors.

[NSExceptional]

Ah, okay! Thanks!

I'm using Sweetpad, which I think uses SolaWing/xcode-build-server. I'll direct them to your advice. Thanks :)