feat(vscode): defined workspaceContains pubspec.yaml activation event (#761)

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

Author: alestiago

extensions/vscode/package.json

@@ -27,7 +27,9 @@
     "backend"
   ],
   "icon": "assets/logo.png",
-  "activationEvents": [],
+  "activationEvents": [
+    "workspaceContains:**/pubspec.yaml"
+  ],
   "main": "./out/extension.js",
   "contributes": {
     "commands": [

extensions/vscode/src/extension.ts

@@ -15,10 +15,13 @@ import {
 /**
  * This method is called when the extension is activated.
  *
- * The extension is activated the very first time the command is executed.
+ * The extension is activated the very first time a command is executed or
+ * if the workspace contains a pubspec.yaml file.
  *
  * @param {vscode.ExtensionContext} context
  * @returns The same instance of the extension context passed in.
+ * @see {@link https://code.visualstudio.com/api/references/activation-events} for further details about
+ * extension activation events.
  */
 export function activate(
   context: vscode.ExtensionContext,