airflow_scheduler/.venv/Lib/site-packages/airflow/ti_deps/dependencies_states.py

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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
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from __future__ import annotations

from airflow.utils.state import TaskInstanceState

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

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

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

QUEUEABLE_STATES = {
    TaskInstanceState.SCHEDULED,
}

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