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Example DAG using GoogleDriveToLocalOperator.

Using this operator requires the following additional scopes:
from __future__ import annotations

import os
from datetime import datetime
from pathlib import Path

from airflow import models
from airflow.models.baseoperator import chain
from import GCSCreateBucketOperator, GCSDeleteBucketOperator
from import GoogleDriveToLocalOperator
from import LocalFilesystemToGCSOperator
from import GoogleDriveFileExistenceSensor
from import GCSToGoogleDriveOperator
from airflow.utils.trigger_rule import TriggerRule

[docs]ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
[docs]PROJECT_ID = os.environ.get("SYSTEM_TESTS_GCP_PROJECT")
[docs]FILE_NAME = "empty.txt"
[docs]OUTPUT_FILE = "out_file.txt"
[docs]DAG_ID = "example_gdrive_to_local"
[docs]BUCKET_NAME = f"bucket_{DAG_ID}_{ENV_ID}"
[docs]LOCAL_PATH = str(Path(__file__).parent / "resources" / FILE_NAME)
with models.DAG( DAG_ID, start_date=datetime(2021, 1, 1), schedule="@once", catchup=False, tags=["example"], ) as dag:
[docs] create_bucket = GCSCreateBucketOperator( task_id="create_bucket", bucket_name=BUCKET_NAME, project_id=PROJECT_ID
) upload_file = LocalFilesystemToGCSOperator( task_id="upload_file", src=LOCAL_PATH, dst=FILE_NAME, bucket=BUCKET_NAME, ) copy_single_file = GCSToGoogleDriveOperator( task_id="copy_single_file", source_bucket=BUCKET_NAME, source_object=FILE_NAME, destination_object=FILE_NAME, ) # [START detect_file] detect_file = GoogleDriveFileExistenceSensor( task_id="detect_file", folder_id="", file_name=FILE_NAME, ) # [END detect_file] # [START download_from_gdrive_to_local] download_from_gdrive_to_local = GoogleDriveToLocalOperator( task_id="download_from_gdrive_to_local", folder_id="", file_name=FILE_NAME, output_file=OUTPUT_FILE, ) # [END download_from_gdrive_to_local] delete_bucket = GCSDeleteBucketOperator( task_id="delete_bucket", bucket_name=BUCKET_NAME, trigger_rule=TriggerRule.ALL_DONE ) chain( # TEST SETUP create_bucket, upload_file, copy_single_file, # TEST BODY detect_file, download_from_gdrive_to_local, # TEST TEARDOWN delete_bucket, ) from tests.system.utils.watcher import watcher # This test needs watcher in order to properly mark success/failure # when "tearDown" task with trigger rule is part of the DAG list(dag.tasks) >> watcher() from tests.system.utils import get_test_run # noqa: E402 # Needed to run the example DAG with pytest (see: tests/system/
[docs]test_run = get_test_run(dag)

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