Vscode extension: document that relative library path are relative to the workspace

[ogoffart]

Closes #5961

[ogoffart]

I've tested it in slint-ui/material-cpp-template#1

[tronical]

Just curious if the Lsp’s working directory is guaranteed or if we can somehow ensure it ourselves when we set up the launch config in extension.ts?

[ogoffart]

Just curious if the Lsp’s working directory is guaranteed or if we can somehow ensure it ourselves when we set up the launch config in extension.ts?

Yes, vscode starts the LSP with the workspace root as the directory.
If the workspace has multiple root, the first one is used.

[tronical]

I'd like to suggest #8815 as a safeguard, unless you're certain that the behaviour is guaranteed.

[ogoffart]

The cwd is set around here.
https://github.com/microsoft/vscode-languageserver-node/blob/4376df05e1cc7cefb106137f74b844fc709c8e7a/client/src/node/main.ts#L576

This is not documented, but i doubt they'd change it.