feat: add a way to override initializationOptions in infrastructure

Author: Loïc Mangeonjean

src/createLanguageClient.ts

@@ -113,6 +113,18 @@ async function createLanguageClient (
   errorHandler: ErrorHandler,
   middleware?: Middleware
 ): Promise<MonacoLanguageClient> {
+  const allInitializationOptions = () => {
+    const infrastructureInitOptions = infrastructure.getInitializationOptions?.()
+    const languageInitOptions = typeof initializationOptions === 'function' ? initializationOptions() : initializationOptions
+    if (infrastructureInitOptions != null || languageInitOptions != null) {
+      return {
+        ...(infrastructureInitOptions ?? {}),
+        ...(languageInitOptions ?? {})
+      }
+    }
+    return undefined
+  }
+
   const client = new MonacoLanguageClient({
     id: `${id}-languageclient`,
     name: `CodinGame ${id} Language Client`,
@@ -123,7 +135,7 @@ async function createLanguageClient (
       errorHandler,
       middleware,
       synchronize,
-      initializationOptions
+      initializationOptions: allInitializationOptions
     },
     connectionProvider: new CGLSPConnectionProvider(id, infrastructure)
   })

src/infrastructure.ts

@@ -2,7 +2,7 @@ import { IWebSocket, WebSocketMessageReader, WebSocketMessageWriter, toSocket }
 import { MessageTransports } from 'monaco-languageclient'
 import * as monaco from 'monaco-editor'
 import type * as vscode from 'vscode'
-import { TextDocumentSaveReason } from 'vscode-languageserver-protocol'
+import { TextDocumentSaveReason, LSPAny } from 'vscode-languageserver-protocol'
 import { getFile, updateFile } from './customRequests'
 import { LanguageClientManager } from './languageClient'
 import { LanguageClientId, LanguageClientOptions } from './languageClientOptions'
@@ -47,6 +47,8 @@ export interface Infrastructure {
    * @param id The language server id
    */
   openConnection (id: LanguageClientId): Promise<MessageTransports>
+
+  getInitializationOptions? (): LSPAny
 }
 
 async function openWebsocketConnection (url: URL | string): Promise<MessageTransports> {