[GitHub] [airflow] ashb commented on a diff in pull request #22741: Show tasks in grid view based on topological sort.

[GitBox <gi...@apache.org>]

ashb commented on code in PR #22741:
URL: https://github.com/apache/airflow/pull/22741#discussion_r842588752


##########
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:
   Oh yeah :( I copied the doc over without checking it. I'll see if I can find a suitable replacement URL (and remove it from the doc string)



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