Allow to run css language server headless

extensions/css-language-features/client/src/node/cssClientMain.ts

@@ -0,0 +1,13 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { getNodeFSRequestService } from './nodeFs';
+import { ExtensionContext } from 'vscode';
+import { startClient } from '../cssClient';
+
+// this method is called when vs code is activated
+export function activate(context: ExtensionContext) {
+	startClient(context, { fs: getNodeFSRequestService() });
+}