refactor(language-server): drop typescript.tsdk initialization option

extensions/vscode/rolldown.config.ts

@@ -60,6 +60,17 @@ const config: RolldownOptions = {
 				},
 			},
 		},
+		{
+			name: 'typescript',
+			resolveId: {
+				filter: {
+					id: /^typescript$/,
+				},
+				handler() {
+					return { id: './typescript.js', external: true };
+				},
+			},
+		},
 	],
 };
 

extensions/vscode/src/languageClient.ts

@@ -1,5 +1,7 @@
 import * as lsp from '@volar/vscode';
 import type { VueInitializationOptions } from '@vue/language-server';
+import * as fs from 'node:fs';
+import * as path from 'node:path';
 import {
 	executeCommand,
 	nextTick,
@@ -61,11 +63,20 @@ async function activateLc(
 	const outputChannel = useOutputChannel('Vue Language Server');
 	const selectors = config.server.includeLanguages;
 
+	// Setup typescript.js in production mode
+	if (fs.existsSync(path.join(__dirname, 'server.js'))) {
+		fs.writeFileSync(path.join(__dirname, 'typescript.js'), `module.exports = require("${vscode.env.appRoot.replace(/\\/g, '/')}/extensions/node_modules/typescript/lib/typescript.js");`);
+	}
+
 	client = createLc(
 		'vue',
 		'Vue',
 		selectors,
-		await getInitializationOptions(context),
+		{
+			typescript: {
+				tsserverRequestCommand: 'typescript.tsserverRequest',
+			},
+		} satisfies VueInitializationOptions,
 		6009,
 		outputChannel
 	);
@@ -82,7 +93,6 @@ async function activateLc(
 		}
 		await client.stop();
 		outputChannel.clear();
-		client.clientOptions.initializationOptions = await getInitializationOptions(context);
 		await client.start();
 	});
 
@@ -101,12 +111,3 @@ async function activateLc(
 		}
 	}
 }
-
-async function getInitializationOptions(context: vscode.ExtensionContext): Promise<VueInitializationOptions> {
-	return {
-		typescript: {
-			tsdk: (await lsp.getTsdk(context))!.tsdk,
-			tsserverRequestCommand: 'typescript.tsserverRequest',
-		},
-	};
-}

packages/language-server/lib/types.ts

@@ -1,6 +1,5 @@
 export type VueInitializationOptions = {
 	typescript: {
-		tsdk: string;
 		tsserverRequestCommand?: string | [request: string, response: string];
 	};
 };

packages/language-server/node.ts

@@ -1,9 +1,9 @@
 import type { LanguageServer } from '@volar/language-server';
 import { createLanguageServiceEnvironment } from '@volar/language-server/lib/project/simpleProject';
-import { createConnection, createServer, loadTsdkByPath } from '@volar/language-server/node';
+import { createConnection, createServer } from '@volar/language-server/node';
 import { createLanguage, createParsedCommandLine, createVueLanguagePlugin, getDefaultCompilerOptions } from '@vue/language-core';
 import { createLanguageService, createUriMap, getHybridModeLanguageServicePlugins, type LanguageService } from '@vue/language-service';
-import type * as ts from 'typescript';
+import * as ts from 'typescript';
 import { URI } from 'vscode-uri';
 import type { VueInitializationOptions } from './lib/types';
 
@@ -15,14 +15,10 @@ connection.listen();
 connection.onInitialize(params => {
 	const options: VueInitializationOptions = params.initializationOptions;
 
-	if (!options.typescript?.tsdk) {
-		throw new Error('typescript.tsdk is required');
-	}
 	if (!options.typescript?.tsserverRequestCommand) {
 		connection.console.warn('typescript.tsserverRequestCommand is required since >= 3.0 for complete TS features');
 	}
 
-	const { typescript: ts } = loadTsdkByPath(options.typescript.tsdk, params.locale);
 	const tsconfigProjects = createUriMap<LanguageService>();
 	const file2ProjectInfo = new Map<string, Promise<ts.server.protocol.ProjectInfo | null>>();
 
@@ -204,4 +200,3 @@ connection.onInitialize(params => {
 connection.onInitialized(server.initialized);
 
 connection.onShutdown(server.shutdown);
-

packages/language-server/package.json

@@ -25,6 +25,9 @@
 		"vscode-languageserver-protocol": "^3.17.5",
 		"vscode-uri": "^3.0.8"
 	},
+	"peerDependencies": {
+		"typescript": "*"
+	},
 	"devDependencies": {
 		"@typescript/server-harness": "latest"
 	}

packages/language-server/tests/server.ts

@@ -57,7 +57,6 @@ export async function getLanguageServer(): Promise<{
 			URI.file(testWorkspacePath).toString(),
 			{
 				typescript: {
-					tsdk: path.dirname(require.resolve('typescript/lib/typescript.js')),
 					tsserverRequestCommand: 'tsserverRequest',
 				},
 			} satisfies VueInitializationOptions,