Coverage for /pythoncovmergedfiles/medio/medio/src/airflow/build/lib/airflow/ti_deps/deps/dagrun_backfill_dep.py: 77%

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18"""This module defines dep for making sure DagRun not a backfill.""" 

19from __future__ import annotations 

20 

21from airflow.ti_deps.deps.base_ti_dep import BaseTIDep 

22from airflow.utils.session import provide_session 

23from airflow.utils.types import DagRunType 

24 

25 

26class DagRunNotBackfillDep(BaseTIDep): 

27 """Dep for valid DagRun run_id to schedule from scheduler.""" 

28 

29 NAME = "DagRun is not backfill job" 

30 IGNORABLE = True 

31 

32 @provide_session 

33 def _get_dep_statuses(self, ti, session, dep_context=None): 

34 """ 

35 Determines if the DagRun is valid for scheduling from scheduler. 

36 

37 :param ti: the task instance to get the dependency status for 

38 :param session: database session 

39 :param dep_context: the context for which this dependency should be evaluated for 

40 :return: True if DagRun is valid for scheduling from scheduler. 

41 """ 

42 dagrun = ti.get_dagrun(session) 

43 

44 if dagrun.run_type == DagRunType.BACKFILL_JOB: 

45 yield self._failing_status( 

46 reason=f"Task's DagRun run_type is {dagrun.run_type} and cannot be run by the scheduler" 

47 )