Fix quickStart silent failure when no folder is open (#4695)

* Initial plan

* Fix quickStart silent failure when no folder is open

Co-authored-by: snehara99 <[email protected]>

* Make quickStart error message more descriptive

Co-authored-by: snehara99 <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: snehara99 <[email protected]>

Author: Copilot

CHANGELOG.md

@@ -8,6 +8,7 @@ Features:
 
 Bug Fixes:
 
+- Fix "CMake: Quick Start" command failing silently when no folder is open. Now shows an error message with an option to open a folder. [#4504](https://github.com/microsoft/vscode-cmake-tools/issues/4504)
 - Fix "CMake: Run Without Debugging" not changing the working directory when the build directory changes. [#4549](https://github.com/microsoft/vscode-cmake-tools/issues/4549)
 - Fix CMake script path links not working in CHS/CSY/FRA/PLK locales due to localized quotes. [#4383](https://github.com/microsoft/vscode-cmake-tools/issues/4383)
 - Fix user-level tasks defined in `~/.config/Code/User/tasks.json` causing infinite spinner. [#4659](https://github.com/microsoft/vscode-cmake-tools/pull/4659)

src/extension.ts

@@ -1669,8 +1669,22 @@ export class ExtensionManager implements vscode.Disposable {
         return this.runCMakeCommandForAll(cmakeProject => cmakeProject.stop());
     }
 
-    quickStart(folder?: vscode.WorkspaceFolder) {
+    async quickStart(folder?: vscode.WorkspaceFolder) {
         telemetry.logEvent("quickStart");
+
+        // Check if there are no workspace folders open
+        if (!vscode.workspace.workspaceFolders || vscode.workspace.workspaceFolders.length === 0) {
+            const openFolder = localize('open.folder', 'Open Folder');
+            const result = await vscode.window.showErrorMessage(
+                localize('no.folder.open.for.quickstart', 'No folder is open. Please open a folder to use CMake: Quick Start.'),
+                openFolder
+            );
+            if (result === openFolder) {
+                await vscode.commands.executeCommand('vscode.openFolder');
+            }
+            return -2;
+        }
+
         return this.runCMakeCommandForProject(cmakeProject => cmakeProject.quickStart(folder));
     }