feat: migrate to Volar

.gitignore

@@ -64,7 +64,12 @@ typings/
 .cache
 
 # tdsx
-dist
+out
+*.tsbuildinfo
 
 # VSCode history extension
 .history
+
+# syntaxes
+postcss.json
+svelte.tmLanguage.json

.npmrc

@@ -1 +1,2 @@
-resolution-mode=highest
+resolution-mode=highest
+link-workspace-packages=true

packages/language-server/bin/server.js

@@ -1,5 +1,8 @@
-#! /usr/bin/env node
-
-const { startServer } = require('../dist/src/server');
-
-startServer();
+#!/usr/bin/env node
+if (process.argv.includes('--version')) {
+	const pkgJSON = require('../package.json');
+	console.log(`${pkgJSON['version']}`);
+}
+else {
+	require('../out/index.js');
+}

packages/language-server/package.json

@@ -1,17 +1,14 @@
 {
     "name": "svelte-language-server",
-    "version": "0.16.0",
+    "version": "0.0.0",
     "description": "A language server for Svelte",
-    "main": "dist/src/index.js",
-    "typings": "dist/src/index",
-    "scripts": {
-        "test": "cross-env TS_NODE_TRANSPILE_ONLY=true mocha --require ts-node/register \"test/**/*.ts\" --exclude \"test/**/*.d.ts\"",
-        "build": "tsc",
-        "prepublishOnly": "npm run build",
-        "watch": "tsc -w"
-    },
+    "main": "out/index.js",
+    "files": [
+        "out/**/*.js",
+        "out/**/*.d.ts"
+    ],
     "bin": {
-        "svelteserver": "bin/server.js"
+        "svelteserver": "./bin/server.js"
     },
     "repository": {
         "type": "git",
@@ -31,39 +28,17 @@
     },
     "homepage": "https://github.com/sveltejs/language-tools#readme",
     "engines": {
-        "node": ">= 12.0.0"
-    },
-    "devDependencies": {
-        "@types/estree": "^0.0.42",
-        "@types/lodash": "^4.14.116",
-        "@types/mocha": "^9.1.0",
-        "@types/node": "^16.0.0",
-        "@types/prettier": "^2.2.3",
-        "@types/sinon": "^7.5.2",
-        "cross-env": "^7.0.2",
-        "mocha": "^9.2.0",
-        "sinon": "^11.0.0",
-        "ts-node": "^10.0.0"
+        "node": ">= 16.0.0"
     },
     "dependencies": {
-        "@jridgewell/trace-mapping": "^0.3.17",
-        "@vscode/emmet-helper": "2.8.4",
-        "chokidar": "^3.4.1",
-        "estree-walker": "^2.0.1",
-        "fast-glob": "^3.2.7",
-        "lodash": "^4.17.21",
-        "prettier": "~3.2.5",
-        "prettier-plugin-svelte": "^3.2.2",
-        "svelte": "^3.57.0",
-        "svelte-preprocess": "^5.1.3",
+        "@jridgewell/sourcemap-codec": "^1.4.15",
+        "@volar/language-core": "~2.3.0",
+        "@volar/language-server": "~2.3.0",
         "svelte2tsx": "workspace:~",
-        "typescript": "^5.3.2",
-        "typescript-auto-import-cache": "^0.3.2",
-        "vscode-css-languageservice": "~6.2.10",
-        "vscode-html-languageservice": "~5.1.1",
-        "vscode-languageserver": "8.0.2",
-        "vscode-languageserver-protocol": "3.17.2",
-        "vscode-languageserver-types": "3.17.2",
-        "vscode-uri": "~3.0.0"
+        "volar-service-css": "0.0.51",
+        "volar-service-html": "0.0.51",
+        "volar-service-typescript": "0.0.51",
+        "vscode-languageserver-textdocument": "^1.0.11",
+        "vscode-uri": "^3.0.8"
     }
 }

packages/language-server/src/index.ts

@@ -1,3 +1,32 @@
-export * from './server';
-export { offsetAt } from './lib/documents';
-export { SvelteCheck, SvelteCheckOptions, SvelteCheckDiagnosticSource } from './svelte-check';
+import { createConnection, createServer, createTypeScriptProject, loadTsdkByPath } from '@volar/language-server/node';
+import { create as createCssScriptServicePlugin } from 'volar-service-css';
+import { create as createHtmlServicePlugin } from 'volar-service-html';
+import { create as createTypeScriptServicePlugins } from 'volar-service-typescript';
+import { svelteLanguagePlugin } from './languagePlugin';
+
+const connection = createConnection();
+const server = createServer(connection);
+
+connection.listen();
+
+connection.onInitialize(params => {
+    const tsdk = loadTsdkByPath(params.initializationOptions.typescript.tsdk, params.locale);
+    return server.initialize(
+        params,
+        createTypeScriptProject(tsdk.typescript, undefined, () => [svelteLanguagePlugin]),
+        [
+            createCssScriptServicePlugin(),
+            createHtmlServicePlugin(),
+            ...createTypeScriptServicePlugins(tsdk.typescript, tsdk.diagnosticMessages),
+        ]
+    );
+});
+
+connection.onInitialized(() => {
+    server.initialized();
+    server.watchFiles(['**/*.{js,cjs,mjs,ts,cts,mts,jsx,tsx,json,svelte}'])
+});
+
+connection.onShutdown(() => {
+    server.shutdown();
+});