feat(language-server): add back typescript.tsdk initialization option

Author: johnsoncodehk

extensions/vscode/index.ts

@@ -90,16 +90,6 @@ export = defineExtension(() => {
 			}
 		});
 
-		// Setup typescript.js in production mode
-		if (fs.existsSync(path.join(__dirname, 'language-server.js'))) {
-			fs.writeFileSync(
-				path.join(__dirname, 'typescript.js'),
-				`module.exports = require("${
-					vscode.env.appRoot.replace(/\\/g, '/')
-				}/extensions/node_modules/typescript/lib/typescript.js");`,
-			);
-		}
-
 		if (config.server.path && !serverPath) {
 			vscode.window.showErrorMessage('Cannot find @vue/language-server.');
 			return;
@@ -152,6 +142,11 @@ function launch(serverPath: string) {
 			},
 		},
 		{
+			initializationOptions: {
+				typescript: {
+					tsdk: `${vscode.env.appRoot.replace(/\\/g, '/')}/extensions/node_modules/typescript/lib`,
+				},
+			},
 			middleware: {
 				...middleware,
 				async resolveCodeAction(item, token, next) {

extensions/vscode/rolldown.config.ts

@@ -67,7 +67,7 @@ const config: RolldownOptions = {
 					id: /^typescript$/,
 				},
 				handler() {
-					return { id: './typescript.js', external: true };
+					return { id: 'typescript', external: true };
 				},
 			},
 		},

packages/language-server/index.ts

@@ -13,7 +13,7 @@ import {
 	createVueLanguageServicePlugins,
 	type LanguageService,
 } from '@vue/language-service';
-import * as ts from 'typescript';
+import type * as ts from 'typescript';
 import { URI } from 'vscode-uri';
 
 const connection = createConnection();
@@ -30,6 +30,16 @@ connection.onNotification('tsserver/response', ([id, res]) => {
 });
 
 connection.onInitialize(params => {
+	let ts: typeof import('typescript');
+	const tsdk = params.initializationOptions?.typescript?.tsdk;
+	if (tsdk) {
+		const tsPath = require.resolve('./typescript.js', { paths: [tsdk] });
+		ts = require(tsPath);
+	}
+	else {
+		ts = require('typescript');
+	}
+
 	const tsconfigProjects = createUriMap<LanguageService>();
 	const file2ProjectInfo = new Map<string, Promise<ts.server.protocol.ProjectInfo | null>>();