OscarLigthart commented on code in PR #59764:
URL: https://github.com/apache/airflow/pull/59764#discussion_r2824422857
##########
airflow-core/src/airflow/serialization/definitions/dag.py:
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@@ -1008,7 +1012,42 @@ def clear(
tuples that should not be cleared
:param exclude_run_ids: A set of ``run_id`` or (``run_id``)
"""
- from airflow.models.taskinstance import clear_task_instances
+ from airflow.models.taskinstance import (
+ _get_new_task_ids,
+ _update_dagrun_to_latest_version,
+ clear_task_instances,
+ )
+
+ if only_new:
+ if not run_id:
+ raise ValueError("only_new requires run_id to be specified")
+ task_ids = _get_new_task_ids(self.dag_id, run_id, session)
+
+ if dry_run:
+ # For dry run, create temporary TaskInstance objects without
database changes
+ # The dag_run is not affected in dry run mode
+ from airflow.models.dag_version import DagVersion
+ from airflow.models.dagbag import DBDagBag
+ from airflow.models.taskinstance import TaskInstance
+
+ scheduler_dagbag = DBDagBag(load_op_links=False)
+ latest_dag =
scheduler_dagbag.get_latest_version_of_dag(self.dag_id, session=session)
+ dag_version = DagVersion.get_latest_version(self.dag_id,
session=session)
+
+ tis = []
+ for task_id in sorted(task_ids):
+ task = latest_dag.get_task(task_id)
+ ti = TaskInstance(
Review Comment:
Implemented. Can still revert if we decide not to change the return typing.
But it should help to showcase what the solution could look like if we do
decide to change it. 👍
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