How do I execute a vscode command from the pygls server?

[at2706]

Hi, I'm looking for a way to execute registered commands on the LSP side of things, just like you would on the extension side like so vscode.commands.executeCommand(). Is it possible to do this?
https://code.visualstudio.com/api/extension-guides/command

[alcarney]

I don't know of a mechanism in the specification for a server to call an arbitrary command in the client at an arbitrary point in time.

However, it might be possible to trigger commands in the client in some situations by filling out fields like CodeAction.command or CompletionItem.command but I suspect this will vary on a client by client basis.

Another option would be to have your server send a custom request to the client to trigger the execution of a client-side command - but this will require a custom client extension for every client you wish to support.