Cancels execution of Walkthrough DeepLink

(#3837, #4390)

Author: sergeibbb

src/uris/deepLinks/deepLinkService.ts

@@ -30,13 +30,15 @@ import { once } from '../../system/event';
 import { Logger } from '../../system/logger';
 import { maybeUri, normalizePath } from '../../system/path';
 import { fromBase64 } from '../../system/string';
+import { isWalkthroughSupported } from '../../telemetry/walkthroughStateProvider';
 import { showInspectView } from '../../webviews/commitDetails/actions';
 import type { ShowWipArgs } from '../../webviews/commitDetails/protocol';
 import type { ShowInCommitGraphCommandArgs } from '../../webviews/plus/graph/registration';
 import type { DeepLink, DeepLinkProgress, DeepLinkRepoOpenType, DeepLinkServiceContext, UriTypes } from './deepLink';
 import {
 	AccountDeepLinkTypes,
 	DeepLinkActionType,
+	DeepLinkCommandType,
 	DeepLinkCommandTypeToCommand,
 	DeepLinkServiceAction,
 	DeepLinkServiceState,
@@ -1510,6 +1512,12 @@ export class DeepLinkService implements Disposable {
 						break;
 					}
 
+					if (mainId === DeepLinkCommandType.Walkthrough && !isWalkthroughSupported()) {
+						action = DeepLinkServiceAction.DeepLinkErrored;
+						message = 'Invalid command type.';
+						break;
+					}
+
 					const command = DeepLinkCommandTypeToCommand.get(mainId);
 					if (command == null) {
 						action = DeepLinkServiceAction.DeepLinkErrored;