airflow list-integrations 源码
airflow list-integrations 代码
文件路径:/scripts/tools/list-integrations.py
#!/usr/bin/env python
# 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 argparse
import inspect
import os
import pkgutil
import sys
from glob import glob
from importlib import import_module
import airflow
from airflow.hooks.base import BaseHook
from airflow.models.baseoperator import BaseOperator
from airflow.secrets import BaseSecretsBackend
from airflow.sensors.base import BaseSensorOperator
program = f"./{__file__}" if not __file__.startswith("./") else __file__
if __name__ != "__main__":
raise Exception(
"This file is intended to be used as an executable program. You cannot use it as a module."
f"To execute this script, run the '{program}' command"
)
AIRFLOW_ROOT = os.path.abspath(os.path.join(os.path.dirname(airflow.__file__), os.pardir))
def _find_clazzes(directory, base_class):
found_classes = set()
for module_finder, name, ispkg in pkgutil.iter_modules([directory]):
if ispkg:
continue
relative_path = os.path.relpath(module_finder.path, AIRFLOW_ROOT)
package_name = relative_path.replace("/", ".")
full_module_name = package_name + "." + name
try:
mod = import_module(full_module_name)
except ModuleNotFoundError:
print(f"Module {full_module_name} can not be loaded.", file=sys.stderr)
continue
clazzes = inspect.getmembers(mod, inspect.isclass)
integration_clazzes = [
clazz
for name, clazz in clazzes
if issubclass(clazz, base_class) and clazz.__module__.startswith(package_name)
]
for found_clazz in integration_clazzes:
found_classes.add(f"{found_clazz.__module__}.{found_clazz.__name__}")
return found_classes
HELP = """\
List operators, hooks, sensors, secrets backend in the installed Airflow.
You can combine this script with other tools e.g. awk, grep, cut, uniq, sort.
"""
EPILOG = f"""
Examples:
If you want to display only sensors, you can execute the following command.
{program} | grep sensors
If you want to display only secrets backend, you can execute the following command.
{program} | grep secrets
If you want to count the operators/sensors in each providers package, you can use the following command.
{program} | \\
grep providers | \\
grep 'sensors\\|operators' | \\
cut -d "." -f 3 | \\
uniq -c | \\
sort -n -r
"""
parser = argparse.ArgumentParser(
prog=program, description=HELP, formatter_class=argparse.RawTextHelpFormatter, epilog=EPILOG
)
# argparse handle `-h/--help/` internally
parser.parse_args()
RESOURCE_TYPES = {
"secrets": BaseSecretsBackend,
"operators": BaseOperator,
"sensors": BaseSensorOperator,
"hooks": BaseHook,
}
for integration_base_directory, integration_class in RESOURCE_TYPES.items():
for integration_directory in glob(
f"{AIRFLOW_ROOT}/airflow/**/{integration_base_directory}", recursive=True
):
if "contrib" in integration_directory:
continue
for clazz_to_print in sorted(_find_clazzes(integration_directory, integration_class)):
print(clazz_to_print)
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