ashb commented on a change in pull request #6564: [AIRFLOW-5911] Simplify
lineage API and improve robustness
URL: https://github.com/apache/airflow/pull/6564#discussion_r346247319
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File path: docs/lineage.rst
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@@ -50,40 +51,43 @@ works.
f_final = File("/tmp/final")
run_this_last = DummyOperator(task_id='run_this_last', dag=dag,
- inlets={"auto": True},
- outlets={"datasets": [f_final,]})
+ inlets=AUTO,
+ outlets=f_final)
f_in = File("/tmp/whole_directory/")
outlets = []
for file in FILE_CATEGORIES:
f_out = File("/tmp/{}/{{{{ execution_date }}}}".format(file))
outlets.append(f_out)
+
run_this = BashOperator(
task_id='run_me_first', bash_command='echo 1', dag=dag,
- inlets={"datasets": [f_in,]},
- outlets={"datasets": outlets}
- )
+ inlets=f_in,
+ outlets=outlets
+ )
run_this.set_downstream(run_this_last)
Tasks take the parameters ``inlets`` and ``outlets``.
Inlets can be manually defined by the following options:
-- by a list of dataset ``{"datasets": [dataset1, dataset2]}``
+- by a list of dataset
-- can be configured to look for outlets from upstream tasks ``{"task_ids":
["task_id1", "task_id2"]}``
+- can be configured to look for outlets from upstream tasks
-- can be configured to pick up outlets from direct upstream tasks ``{"auto":
True}``
+- can be configured to pick up outlets from direct upstream tasks 'AUTO'
- a combination of them
-Outlets are defined as list of dataset ``{"datasets": [dataset1, dataset2]}``.
Any fields for the dataset are templated with
-the context when the task is being executed.
+Outlets are defined as list of dataset ``[dataset1, dataset2]}``.
Review comment:
```suggestion
Outlets are defined as list of datasets ``[dataset1, dataset2]``.
```
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