Coverage for /pythoncovmergedfiles/medio/medio/src/airflow/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.""" 

19 

20from __future__ import annotations 

21 

22from airflow.ti_deps.deps.base_ti_dep import BaseTIDep 

23from airflow.utils.session import provide_session 

24from airflow.utils.types import DagRunType 

25 

26 

27class DagRunNotBackfillDep(BaseTIDep): 

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

29 

30 NAME = "DagRun is not backfill job" 

31 IGNORABLE = True 

32 

33 @provide_session 

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

35 """ 

36 Determine if the DagRun is valid for scheduling from scheduler. 

37 

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

39 :param session: database session 

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

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

42 """ 

43 dagrun = ti.get_dagrun(session) 

44 

45 if dagrun.run_type == DagRunType.BACKFILL_JOB: 

46 yield self._failing_status( 

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

48 )