Fix #102001

src/vs/workbench/services/userDataSync/browser/userDataSyncWorkbenchService.ts

@@ -357,6 +357,18 @@ export class UserDataSyncWorkbenchService extends Disposable implements IUserDat
 		}
 	}
 
+	async resetSyncedData(): Promise<void> {
+		const result = await this.dialogService.confirm({
+			message: localize('reset', "This will clear your synced data from the cloud and stop sync on all your devices."),
+			title: localize('reset title', "Reset Synced Data"),
+			type: 'info',
+			primaryButton: localize('reset button', "Reset"),
+		});
+		if (result.confirmed) {
+			await this.userDataSyncService.resetRemote();
+		}
+	}
+
 	private isSupportedAuthenticationProviderId(authenticationProviderId: string): boolean {
 		return this.authenticationProviders.some(({ id }) => id === authenticationProviderId);
 	}

src/vs/workbench/services/userDataSync/common/userDataSync.ts

@@ -54,6 +54,7 @@ export interface IUserDataSyncWorkbenchService {
 	turnOn(): Promise<void>;
 	turnoff(everyWhere: boolean): Promise<void>;
 	signIn(): Promise<void>;
+	resetSyncedData(): Promise<void>;
 }
 
 export function getSyncAreaLabel(source: SyncResource): string {

src/vs/workbench/services/userDataSync/electron-browser/userDataSyncService.ts

@@ -86,6 +86,10 @@ export class UserDataSyncService extends Disposable implements IUserDataSyncServ
 		return this.channel.call('reset');
 	}
 
+	resetRemote(): Promise<void> {
+		return this.channel.call('resetRemote');
+	}
+
 	resetLocal(): Promise<void> {
 		return this.channel.call('resetLocal');
 	}
@@ -165,7 +169,16 @@ class ManualSyncTask implements IManualSyncTask {
 		readonly manifest: IUserDataManifest | null,
 		sharedProcessService: ISharedProcessService,
 	) {
-		this.channel = sharedProcessService.getChannel(`manualSyncTask-${id}`);
+		const manualSyncTaskChannel = sharedProcessService.getChannel(`manualSyncTask-${id}`);
+		this.channel = {
+			call<T>(command: string, arg?: any, cancellationToken?: CancellationToken): Promise<T> {
+				return manualSyncTaskChannel.call(command, arg, cancellationToken)
+					.then(null, error => { throw UserDataSyncError.toUserDataSyncError(error); });
+			},
+			listen<T>(event: string, arg?: any): Event<T> {
+				return manualSyncTaskChannel.listen(event, arg);
+			}
+		};
 	}
 
 	async preview(): Promise<[SyncResource, ISyncResourcePreview][]> {