airflow example_gdrive_to_local 源码
airflow example_gdrive_to_local 代码
文件路径：/airflow/providers/google/cloud/example_dags/example_gdrive_to_local.py
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# 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,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
from __future__ import annotations
import os
from datetime import datetime
from airflow import models
from airflow.providers.google.cloud.transfers.gdrive_to_local import GoogleDriveToLocalOperator
from airflow.providers.google.suite.sensors.drive import GoogleDriveFileExistenceSensor
FOLDER_ID = os.environ.get("FILE_ID", "1234567890qwerty")
FILE_NAME = os.environ.get("FILE_NAME", "file.pdf")
OUTPUT_FILE = os.environ.get("OUTPUT_FILE", "out_file.pdf")
with models.DAG(
"example_gdrive_to_local_with_gdrive_sensor",
start_date=datetime(2021, 1, 1),
catchup=False,
tags=["example"],
) as dag:
# [START detect_file]
detect_file = GoogleDriveFileExistenceSensor(
task_id="detect_file", folder_id=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=FOLDER_ID,
file_name=FILE_NAME,
output_file=OUTPUT_FILE,
)
# [END download_from_gdrive_to_local]
detect_file >> download_from_gdrive_to_local
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