airflow/ti_deps/dependencies_states.py

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#   http://www.apache.org/licenses/LICENSE-2.0
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from airflow.utils.state import State

EXECUTION_STATES = {
    State.RUNNING,
    State.QUEUED,
}

# In order to be able to get queued a task must have one of these states
SCHEDULEABLE_STATES = {
    State.NONE,
    State.UP_FOR_RETRY,
    State.UP_FOR_RESCHEDULE,
}

RUNNABLE_STATES = {
    # For cases like unit tests and run manually
    State.NONE,
    State.UP_FOR_RETRY,
    State.UP_FOR_RESCHEDULE,
    # For normal scheduler/backfill cases
    State.QUEUED,
}

QUEUEABLE_STATES = {
    State.SCHEDULED,
}

BACKFILL_QUEUEABLE_STATES = {
    # For cases like unit tests and run manually
    State.NONE,
    State.UP_FOR_RESCHEDULE,
    State.UP_FOR_RETRY,
    # For normal backfill cases
    State.SCHEDULED,
}