Create Hello World extension with basic structure and TypeScript compilation

Co-authored-by: osortega <[email protected]>

Author: Copilot

build/gulpfile.extensions.js

@@ -41,6 +41,7 @@ const compilations = [
 	'extensions/github-authentication/tsconfig.json',
 	'extensions/grunt/tsconfig.json',
 	'extensions/gulp/tsconfig.json',
+	'extensions/hello-world/tsconfig.json',
 	'extensions/html-language-features/client/tsconfig.json',
 	'extensions/html-language-features/server/tsconfig.json',
 	'extensions/ipynb/tsconfig.json',

extensions/hello-world/.vscodeignore

@@ -0,0 +1,6 @@
+out/test/**
+src/**
+.vscode-test/**
+.gitignore
+tsconfig.json
+.vscode/**

extensions/hello-world/package.json

@@ -0,0 +1,43 @@
+{
+  "name": "hello-world",
+  "displayName": "Hello World",
+  "description": "A simple Hello World extension for VS Code",
+  "version": "1.0.0",
+  "publisher": "vscode",
+  "license": "MIT",
+  "engines": {
+    "vscode": "^1.4.0"
+  },
+  "categories": [
+    "Other"
+  ],
+  "activationEvents": [
+    "onCommand:helloWorld.hello"
+  ],
+  "main": "./out/extension",
+  "contributes": {
+    "commands": [
+      {
+        "command": "helloWorld.hello",
+        "title": "Hello World"
+      }
+    ]
+  },
+  "scripts": {
+    "compile": "gulp compile-extension:hello-world",
+    "watch": "gulp watch-extension:hello-world"
+  },
+  "devDependencies": {
+    "@types/node": "22.x"
+  },
+  "capabilities": {
+    "virtualWorkspaces": true,
+    "untrustedWorkspaces": {
+      "supported": true
+    }
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/microsoft/vscode.git"
+  }
+}

extensions/hello-world/src/extension.ts

@@ -0,0 +1,16 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as vscode from 'vscode';
+
+export function activate(context: vscode.ExtensionContext) {
+	const disposable = vscode.commands.registerCommand('helloWorld.hello', () => {
+		vscode.window.showInformationMessage('Hello World from VS Code!');
+	});
+
+	context.subscriptions.push(disposable);
+}
+
+export function deactivate() {}

extensions/hello-world/tsconfig.json

@@ -0,0 +1,10 @@
+{
+	"extends": "../tsconfig.base.json",
+	"compilerOptions": {
+		"outDir": "./out"
+	},
+	"include": [
+		"src/**/*",
+		"../../src/vscode-dts/vscode.d.ts"
+	]
+}