kaxil commented on a change in pull request #16461:
URL: https://github.com/apache/airflow/pull/16461#discussion_r652073606
##########
File path: airflow/cli/commands/dag_command.py
##########
@@ -78,6 +78,10 @@ def dag_backfill(args, dag=None):
dag = dag.partial_subset(
task_ids_or_regex=args.task_regex, include_upstream=not
args.ignore_dependencies
)
+ if not dag.task_dict:
+ raise AirflowException(
+ f"There is no any task that match '{args.task_regex}' regex.
Nothing to run, exiting..."
Review comment:
```suggestion
f"There are no tasks that match '{args.task_regex}' regex.
Nothing to run, exiting..."
```
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