Add an option for the client to specify the conf.py to the language server as a config option about esbonio HOT 1 CLOSED

This one is tricker than expected...

It's easy enough to get the configuration from the client. The trouble is that the spec mandates that it has to happen after the server responds to the initialize request - by which point Sphinx has already been stood up and the various features have indexed the directvies, roles etc.

I tried moving all the initialization code into the handler for the initialized notification instead - which should still work and give us the ability to check the configuration to see if we've been given a specific conf.py to use. This however causes a different problem in the test suite. Being a notification, there's no clean way to say "wait for this to finish" as there is no response to wait for. I tried adding a sleep, but even with 5s that somehow wasn't enough to guarantee the server was in a state to proceed.

Edit: The test suite has been refactored to use unit tests and are no longer required to talk the LSP protocol

from esbonio.