| #!/usr/bin/env python3 |
| # 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. |
| import argparse |
| import importlib |
| import pkgutil |
| import sys |
| import traceback |
| from inspect import isclass |
| from typing import List |
| |
| |
| def import_all_classes( |
| paths: List[str], |
| prefix: str, |
| provider_ids: List[str] = None, |
| print_imports: bool = False, |
| print_skips: bool = False, |
| ) -> List[str]: |
| """ |
| Imports all classes in providers packages. This method loads and imports |
| all the classes found in providers, so that we can find all the subclasses |
| of operators/sensors etc. |
| |
| :param paths: list of paths to look the provider packages in |
| :param prefix: prefix to add |
| :param provider_ids - provider ids that should be loaded. |
| :param print_imports - if imported class should also be printed in output |
| :param print_skips - if skipped classes should also be printed in output |
| :return: list of all imported classes |
| """ |
| imported_classes = [] |
| tracebacks = [] |
| |
| def mk_prefix(provider_id): |
| return f'{prefix}{provider_id}' |
| |
| if provider_ids: |
| provider_prefixes = [mk_prefix(provider_id) for provider_id in provider_ids] |
| else: |
| provider_prefixes = [prefix] |
| |
| def onerror(_): |
| nonlocal tracebacks |
| exception_string = traceback.format_exc() |
| if any(provider_prefix in exception_string for provider_prefix in provider_prefixes): |
| tracebacks.append(exception_string) |
| |
| for modinfo in pkgutil.walk_packages(path=paths, prefix=prefix, onerror=onerror): |
| if not any(modinfo.name.startswith(provider_prefix) for provider_prefix in provider_prefixes): |
| if print_skips: |
| print(f"Skipping module: {modinfo.name}") |
| continue |
| if print_imports: |
| print(f"Importing module: {modinfo.name}") |
| try: |
| _module = importlib.import_module(modinfo.name) |
| for attribute_name in dir(_module): |
| class_name = modinfo.name + "." + attribute_name |
| attribute = getattr(_module, attribute_name) |
| if isclass(attribute): |
| if print_imports: |
| print(f"Imported {class_name}") |
| imported_classes.append(class_name) |
| except Exception: # noqa |
| exception_str = traceback.format_exc() |
| tracebacks.append(exception_str) |
| if tracebacks: |
| print( |
| """ |
| ERROR: There were some import errors |
| """, |
| file=sys.stderr, |
| ) |
| for trace in tracebacks: |
| print("----------------------------------------", file=sys.stderr) |
| print(trace, file=sys.stderr) |
| print("----------------------------------------", file=sys.stderr) |
| sys.exit(1) |
| else: |
| return imported_classes |
| |
| |
| if __name__ == '__main__': |
| |
| parser = argparse.ArgumentParser(description='Perform import of all provider classes.') |
| parser.add_argument('--path', action='append', help='paths to search providers in') |
| parser.add_argument('--prefix', help='prefix to add in front of the class', default='airflow.providers.') |
| |
| args = parser.parse_args() |
| print() |
| print(f"Walking all packages in {args.path} with prefix {args.prefix}") |
| print() |
| classes = import_all_classes(print_imports=True, print_skips=True, paths=args.path, prefix=args.prefix) |
| if len(classes) == 0: |
| raise Exception("Something is seriously wrong - no classes imported") |
| print() |
| print(f"SUCCESS: All provider packages are importable! Imported {len(classes)} classes.") |
| print() |