norm commented on code in PR #22741:
URL: https://github.com/apache/airflow/pull/22741#discussion_r842581975
##########
airflow/utils/task_group.py:
##########
@@ -401,6 +401,69 @@ def expand(self, arg: Iterable) -> "MappedTaskGroup":
self.task_group._remove(self)
return MappedTaskGroup(group_id=self._group_id, dag=self.dag,
mapped_arg=arg)
+ def topological_sort(self, _include_subdag_tasks: bool = False):
+ """
+ Sorts children in topographical order, such that a task comes after
any of its
+ upstream dependencies.
+
+ Heavily inspired by:
+
http://blog.jupo.org/2012/04/06/topological-sorting-acyclic-directed-graphs/
Review Comment:
Alas, this URL no longer works and is not in the Wayback Machine.
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