Extracts host app name lookup into reusable helper

Author: eamodio

src/system/-webview/vscode.ts

@@ -12,45 +12,53 @@ import { exists } from './vscode/uris';
 
 export const deviceCohortGroup = getDistributionGroup(env.machineId);
 
-let _hostExecutablePath: string | undefined;
-export async function getHostExecutablePath(): Promise<string> {
-	if (_hostExecutablePath != null) return _hostExecutablePath;
+let _hostAppName: string | undefined | null;
+export async function getHostAppName(): Promise<string | undefined> {
+	if (_hostAppName !== undefined) return _hostAppName ?? undefined;
 
-	const platform = getPlatform();
-
-	let app: string;
 	switch (env.appName) {
 		case 'Visual Studio Code':
-			app = 'code';
+			_hostAppName = 'code';
 			break;
 		case 'Visual Studio Code - Insiders':
-			app = 'code-insiders';
+			_hostAppName = 'code-insiders';
 			break;
 		case 'Visual Studio Code - Exploration':
-			app = 'code-exploration';
+			_hostAppName = 'code-exploration';
 			break;
 		case 'VSCodium':
-			app = 'codium';
+			_hostAppName = 'codium';
 			break;
 		case 'Cursor':
-			app = 'cursor';
+			_hostAppName = 'cursor';
 			break;
 		case 'Windsurf':
-			app = 'windsurf';
+			_hostAppName = 'windsurf';
 			break;
 		default: {
 			try {
 				const bytes = await workspace.fs.readFile(Uri.file(joinPaths(env.appRoot, 'product.json')));
 				const product = JSON.parse(new TextDecoder().decode(bytes));
-				app = product.applicationName;
+				_hostAppName = product.applicationName;
 			} catch {
-				app = 'code';
+				_hostAppName = null;
 			}
 
 			break;
 		}
 	}
 
+	return _hostAppName ?? undefined;
+}
+
+let _hostExecutablePath: string | undefined;
+export async function getHostExecutablePath(): Promise<string> {
+	if (_hostExecutablePath != null) return _hostExecutablePath;
+
+	const platform = getPlatform();
+
+	const app = (await getHostAppName()) ?? 'code';
+
 	_hostExecutablePath = app;
 	if (env.remoteName) return app;