only get workspace tasks when getKnownTasks is called if in a trust…

…ed workspace, prevent trust dialog from showing for this case (#225087)

fix #224881

src/vs/workbench/contrib/tasks/browser/abstractTaskService.ts

@@ -890,7 +890,7 @@ export abstract class AbstractTaskService extends Disposable implements ITaskSer
 			return Promise.resolve<Task[]>([]);
 		}
 
-		return this._getGroupedTasks(filter, true).then((map) => this.applyFilterToTaskMap(filter, map));
+		return this._getGroupedTasks(filter, true, true).then((map) => this.applyFilterToTaskMap(filter, map));
 	}
 
 	public taskTypes(): string[] {
@@ -2023,7 +2023,7 @@ export abstract class AbstractTaskService extends Disposable implements ITaskSer
 		return !definition || !definition.when || this._contextKeyService.contextMatchesRules(definition.when);
 	}
 
-	private async _getGroupedTasks(filter?: ITaskFilter, waitToActivate?: boolean): Promise<TaskMap> {
+	private async _getGroupedTasks(filter?: ITaskFilter, waitToActivate?: boolean, knownOnlyOrTrusted?: boolean): Promise<TaskMap> {
 		await this._waitForAllSupportedExecutions;
 		const type = filter?.type;
 		const needsRecentTasksMigration = this._needsRecentTasksMigration();
@@ -2110,7 +2110,12 @@ export abstract class AbstractTaskService extends Disposable implements ITaskSer
 		}
 
 		try {
-			await Promise.all(this._getCustomTaskPromises(Array.from(await this.getWorkspaceTasks()), filter, result, contributedTasks, waitToActivate));
+			let tasks: [string, IWorkspaceFolderTaskResult][] = [];
+			// prevent workspace trust dialog from being shown in unexpected cases #224881
+			if (!knownOnlyOrTrusted || this._workspaceTrustManagementService.isWorkspaceTrusted()) {
+				tasks = Array.from(await this.getWorkspaceTasks());
+			}
+			await Promise.all(this._getCustomTaskPromises(tasks, filter, result, contributedTasks, waitToActivate));
 			if (needsRecentTasksMigration) {
 				// At this point we have all the tasks and can migrate the recently used tasks.
 				await this._migrateRecentTasks(result.all());