text: #
  # 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.
  """Setup.py for the Airflow project."""
  import glob
  import logging
  import os
  import subprocess
  import sys
  import unittest
  from copy import deepcopy
  from distutils import log
  from os.path import dirname, relpath
  from textwrap import wrap
  from typing import Dict, List
  
  from setuptools import Command, Distribution, find_namespace_packages, setup
  from setuptools.command.develop import develop as develop_orig
  from setuptools.command.install import install as install_orig
  
  # Controls whether providers are installed from packages or directly from sources
  # It is turned on by default in case of development environments such as Breeze
  # And it is particularly useful when you add a new provider and there is no
  # PyPI version to install the provider package from
  INSTALL_PROVIDERS_FROM_SOURCES = 'INSTALL_PROVIDERS_FROM_SOURCES'
  PY39 = sys.version_info >= (3, 9)
  
  logger = logging.getLogger(__name__)
  
  version = '2.2.0.dev0'
  
  my_dir = dirname(__file__)
  
  
  def airflow_test_suite() -> unittest.TestSuite:
      """Test suite for Airflow tests"""
      test_loader = unittest.TestLoader()
      test_suite = test_loader.discover(os.path.join(my_dir, 'tests'), pattern='test_*.py')
      return test_suite
  
  
  class CleanCommand(Command):
      """
      Command to tidy up the project root.
      Registered as cmdclass in setup() so it can be called with ``python setup.py extra_clean``.
      """
  
      description = "Tidy up the project root"
      user_options: List[str] = []
  
      def initialize_options(self) -> None:
          """Set default values for options."""
  
      def finalize_options(self) -> None:
          """Set final values for options."""
  
      @staticmethod
      def rm_all_files(files: List[str]) -> None:
          """Remove all files from the list"""
          for file in files:
              try:
                  os.remove(file)
              except Exception as e:
                  logger.warning("Error when removing %s: %s", file, e)
  
      def run(self) -> None:
          """Remove temporary files and directories."""
          os.chdir(my_dir)
          self.rm_all_files(glob.glob('./build/*'))
          self.rm_all_files(glob.glob('./**/__pycache__/*', recursive=True))
          self.rm_all_files(glob.glob('./**/*.pyc', recursive=True))
          self.rm_all_files(glob.glob('./dist/*'))
          self.rm_all_files(glob.glob('./*.egg-info'))
          self.rm_all_files(glob.glob('./docker-context-files/*.whl'))
          self.rm_all_files(glob.glob('./docker-context-files/*.tgz'))
  
  
  class CompileAssets(Command):
      """
      Compile and build the frontend assets using yarn and webpack.
      Registered as cmdclass in setup() so it can be called with ``python setup.py compile_assets``.
      """
  
      description = "Compile and build the frontend assets"
      user_options: List[str] = []
  
      def initialize_options(self) -> None:
          """Set default values for options."""
  
      def finalize_options(self) -> None:
          """Set final values for options."""
  
      def run(self) -> None:
          """Run a command to compile and build assets."""
          subprocess.check_call('./airflow/www/compile_assets.sh')
  
  
  class ListExtras(Command):
      """
      List all available extras
      Registered as cmdclass in setup() so it can be called with ``python setup.py list_extras``.
      """
  
      description = "List available extras"
      user_options: List[str] = []
  
      def initialize_options(self) -> None:
          """Set default values for options."""
  
      def finalize_options(self) -> None:
          """Set final values for options."""
  
      def run(self) -> None:
          """List extras."""
          print("\n".join(wrap(", ".join(EXTRAS_REQUIREMENTS.keys()), 100)))
  
  
  def git_version(version_: str) -> str:
      """
      Return a version to identify the state of the underlying git repo. The version will
      indicate whether the head of the current git-backed working directory is tied to a
      release tag or not : it will indicate the former with a 'release:{version}' prefix
      and the latter with a '.dev0' suffix. Following the prefix will be a sha of the current
      branch head. Finally, a "dirty" suffix is appended to indicate that uncommitted
      changes are present.
  
      :param str version_: Semver version
      :return: Found Airflow version in Git repo
      :rtype: str
      """
      try:
          import git
  
          try:
              repo = git.Repo(os.path.join(*[my_dir, '.git']))
          except git.NoSuchPathError:
              logger.warning('.git directory not found: Cannot compute the git version')
              return ''
          except git.InvalidGitRepositoryError:
              logger.warning('Invalid .git directory not found: Cannot compute the git version')
              return ''
      except ImportError:
          logger.warning('gitpython not found: Cannot compute the git version.')
          return ''
      if repo:
          sha = repo.head.commit.hexsha
          if repo.is_dirty():
              return f'.dev0+{sha}.dirty'
          # commit is clean
          return f'.release:{version_}+{sha}'
      return 'no_git_version'
  
  
  def write_version(filename: str = os.path.join(*[my_dir, "airflow", "git_version"])) -> None:
      """
      Write the Semver version + git hash to file, e.g. ".dev0+2f635dc265e78db6708f59f68e8009abb92c1e65".
  
      :param str filename: Destination file to write
      """
      text = f"{git_version(version)}"
      with open(filename, 'w') as file:
          file.write(text)
  
  
  # 'Start dependencies group' and 'Start dependencies group' are mark for ./scripts/ci/check_order_setup.py
  # If you change this mark you should also change ./scripts/ci/check_order_setup.py
  # Start dependencies group
  alibaba = [
      'oss2>=2.14.0',
  ]
  amazon = [
      'boto3>=1.15.0,<1.18.0',
      'watchtower~=1.0.6',
      'jsonpath_ng>=1.5.3',
  ]
  apache_beam = [
      'apache-beam>=2.20.0',
  ]
  asana = ['asana>=0.10', 'cached-property>=1.5.2']
  async_packages = [
      'eventlet>= 0.9.7',
      'gevent>=0.13',
      'greenlet>=0.4.9',
  ]
  atlas = [
      'atlasclient>=0.1.2',
  ]
  azure = [
      'azure-batch>=8.0.0',
      'azure-cosmos>=3.0.1,<4',
      'azure-datalake-store>=0.0.45',
      'azure-identity>=1.3.1',
      'azure-keyvault>=4.1.0',
      'azure-kusto-data>=0.0.43,<0.1',
      'azure-mgmt-containerinstance>=1.5.0,<2.0',
      'azure-mgmt-datafactory>=1.0.0,<2.0',
      'azure-mgmt-datalake-store>=0.5.0',
      'azure-mgmt-resource>=2.2.0',
      'azure-storage-blob>=12.7.0',
      'azure-storage-common>=2.1.0',
      'azure-storage-file>=2.1.0',
  ]
  cassandra = [
      'cassandra-driver>=3.13.0,<4',
  ]
  celery = [
      'celery~=4.4.2',
      'flower>=0.7.3, <1.0',
      'vine~=1.3',  # https://stackoverflow.com/questions/32757259/celery-no-module-named-five
  ]
  cgroups = [
      'cgroupspy>=0.1.4',
  ]
  cloudant = [
      'cloudant>=2.0',
  ]
  dask = [
      'cloudpickle>=1.4.1, <1.5.0',
      'dask<2021.3.1;python_version<"3.7"',  # dask stopped supporting python 3.6 in 2021.3.1 version
      'dask>=2.9.0, <2021.6.1;python_version>="3.7"',  # dask 2021.6.1 does not work with `distributed`
      'distributed>=2.11.1, <2.20',
  ]
  databricks = [
      'requests>=2.26.0, <3',
  ]
  datadog = [
      'datadog>=0.14.0',
  ]
  deprecated_api = [
      'requests>=2.26.0',
  ]
  doc = [
      # Sphinx is limited to < 3.5.0 because of https://github.com/sphinx-doc/sphinx/issues/8880
      'sphinx>=2.1.2, <3.5.0',
      'sphinx-airflow-theme',
      'sphinx-argparse>=0.1.13',
      'sphinx-autoapi==1.0.0',
      'sphinx-copybutton',
      'sphinx-jinja~=1.1',
      'sphinx-rtd-theme>=0.1.6',
      'sphinxcontrib-httpdomain>=1.7.0',
      'sphinxcontrib-redoc>=1.6.0',
      'sphinxcontrib-spelling==7.2.1',
  ]
  docker = [
      'docker',
  ]
  drill = ['sqlalchemy-drill>=1.1.0', 'sqlparse>=0.4.1']
  druid = [
      'pydruid>=0.4.1',
  ]
  elasticsearch = [
      'elasticsearch>7',
      'elasticsearch-dbapi',
      'elasticsearch-dsl>=5.0.0',
  ]
  exasol = [
      'pyexasol>=0.5.1,<1.0.0',
  ]
  facebook = [
      'facebook-business>=6.0.2',
  ]
  flask_appbuilder_authlib = [
      'authlib',
  ]
  google = [
      'PyOpenSSL',
      'google-ads>=12.0.0',
      'google-api-core>=1.25.1,<2.0.0',
      'google-api-python-client>=1.6.0,<2.0.0',
      'google-auth>=1.0.0,<2.0.0',
      'google-auth-httplib2>=0.0.1',
      'google-cloud-automl>=2.1.0,<3.0.0',
      'google-cloud-bigquery-datatransfer>=3.0.0,<4.0.0',
      'google-cloud-bigtable>=1.0.0,<2.0.0',
      'google-cloud-container>=0.1.1,<2.0.0',
      'google-cloud-datacatalog>=3.0.0,<4.0.0',
      'google-cloud-dataproc>=2.2.0,<3.0.0',
      'google-cloud-dlp>=0.11.0,<2.0.0',
      'google-cloud-kms>=2.0.0,<3.0.0',
      'google-cloud-language>=1.1.1,<2.0.0',
      'google-cloud-logging>=2.1.1,<3.0.0',
      # 1.1.0 removed field_mask and broke import for released providers
      # We can remove the <1.1.0 limitation after we release new Google Provider
      'google-cloud-memcache>=0.2.0,<1.1.0',
      'google-cloud-monitoring>=2.0.0,<3.0.0',
      'google-cloud-os-login>=2.0.0,<3.0.0',
      'google-cloud-pubsub>=2.0.0,<3.0.0',
      'google-cloud-redis>=2.0.0,<3.0.0',
      'google-cloud-secret-manager>=0.2.0,<2.0.0',
      'google-cloud-spanner>=1.10.0,<2.0.0',
      'google-cloud-speech>=0.36.3,<2.0.0',
      'google-cloud-storage>=1.30,<2.0.0',
      'google-cloud-tasks>=2.0.0,<3.0.0',
      'google-cloud-texttospeech>=0.4.0,<2.0.0',
      'google-cloud-translate>=1.5.0,<2.0.0',
      'google-cloud-videointelligence>=1.7.0,<2.0.0',
      'google-cloud-vision>=0.35.2,<2.0.0',
      'google-cloud-workflows>=0.1.0,<2.0.0',
      'grpcio-gcp>=0.2.2',
      'httpx',
      'json-merge-patch~=0.2',
      # pandas-gbq 0.15.0 release broke google provider's bigquery import
      # _check_google_client_version (airflow/providers/google/cloud/hooks/bigquery.py:49)
      'pandas-gbq<0.15.0',
  ]
  grpc = [
      'google-auth>=1.0.0, <2.0.0dev',
      'google-auth-httplib2>=0.0.1',
      'grpcio>=1.15.0',
  ]
  hashicorp = [
      'hvac~=0.10',
  ]
  hdfs = [
      'snakebite-py3',
  ]
  hive = [
      'hmsclient>=0.1.0',
      'pyhive[hive]>=0.6.0;python_version<"3.9"',
      'thrift>=0.9.2',
  ]
  http = [
      # The 2.26.0 release of requests got rid of the chardet LGPL mandatory dependency, allowing us to
      # release it as a requirement for airflow
      'requests>=2.26.0',
  ]
  http_provider = [
      # NOTE ! The HTTP provider is NOT preinstalled by default when Airflow is installed - because it
      #        depends on `requests` library and until `chardet` is mandatory dependency of `requests`
      #        See https://github.com/psf/requests/pull/5797
      #        This means that providers that depend on Http and cannot work without it, have to have
      #        explicit dependency on `apache-airflow-providers-http` which needs to be pulled in for them.
      #        Other cross-provider-dependencies are optional (usually cross-provider dependencies only enable
      #        some features of providers and majority of those providers works). They result with an extra,
      #        not with the `install-requires` dependency.
      'apache-airflow-providers-http',
  ]
  jdbc = [
      'jaydebeapi>=1.1.1',
  ]
  jenkins = [
      'python-jenkins>=1.0.0',
  ]
  jira = [
      'JIRA>1.0.7',
  ]
  kerberos = [
      'pykerberos>=1.1.13',
      'requests_kerberos>=0.10.0',
      'thrift_sasl>=0.2.0',
  ]
  kubernetes = [
      'cryptography>=2.0.0',
      'kubernetes>=3.0.0, <12.0.0',
  ]
  kylin = ['kylinpy>=2.6']
  ldap = [
      'ldap3>=2.5.1',
      'python-ldap',
  ]
  leveldb = ['plyvel']
  mongo = [
      'dnspython>=1.13.0,<3.0.0',
      'pymongo>=3.6.0',
  ]
  mssql = [
      'pymssql~=2.1,>=2.1.5',
  ]
  mysql = [
      'mysql-connector-python>=8.0.11, <=8.0.22',
      'mysqlclient>=1.3.6,<3',
  ]
  neo4j = ['neo4j>=4.2.1']
  odbc = [
      'pyodbc',
  ]
  oracle = [
      'cx_Oracle>=5.1.2',
  ]
  pagerduty = [
      'pdpyras>=4.1.2,<5',
  ]
  papermill = [
      'papermill[all]>=1.2.1',
      'scrapbook[all]',
  ]
  password = [
      'bcrypt>=2.0.0',
      'flask-bcrypt>=0.7.1',
  ]
  pinot = [
      # pinotdb v0.1.1 may still work with older versions of Apache Pinot, but we've confirmed that it
      # causes a problem with newer versions.
      'pinotdb>0.1.2,<1.0.0',
  ]
  plexus = [
      'arrow>=0.16.0',
  ]
  postgres = [
      'psycopg2-binary>=2.7.4',
  ]
  presto = ['presto-python-client>=0.7.0,<0.8']
  psrp = [
      'pypsrp~=0.5',
  ]
  qubole = [
      'qds-sdk>=1.10.4',
  ]
  rabbitmq = [
      'amqp<5.0.0',
  ]
  redis = [
      'redis~=3.2',
  ]
  salesforce = [
      'simple-salesforce>=1.0.0',
      'tableauserverclient',
  ]
  samba = [
      'smbprotocol>=1.5.0',
  ]
  segment = [
      'analytics-python>=1.2.9',
  ]
  sendgrid = [
      'sendgrid>=6.0.0,<7',
  ]
  sentry = [
      'blinker>=1.1',
      'sentry-sdk>=0.8.0',
  ]
  singularity = ['spython>=0.0.56']
  slack = [
      'slack_sdk>=3.0.0,<4.0.0',
  ]
  snowflake = [
      'snowflake-connector-python>=2.4.1',
      'snowflake-sqlalchemy>=1.1.0',
  ]
  spark = [
      'pyspark',
  ]
  ssh = [
      'paramiko>=2.6.0',
      'pysftp>=0.2.9',
      'sshtunnel>=0.1.4,<0.2',
  ]
  statsd = [
      'statsd>=3.3.0, <4.0',
  ]
  tableau = [
      'tableauserverclient',
  ]
  telegram = [
      'python-telegram-bot~=13.0',
  ]
  trino = ['trino']
  vertica = [
      'vertica-python>=0.5.1',
  ]
  virtualenv = [
      'virtualenv',
  ]
  webhdfs = [
      'hdfs[avro,dataframe,kerberos]>=2.0.4',
  ]
  winrm = [
      'pywinrm~=0.4',
  ]
  yandex = [
      'yandexcloud>=0.97.0',
  ]
  zendesk = [
      'zdesk',
  ]
  # End dependencies group
  
  devel = [
      'aws_xray_sdk',
      'beautifulsoup4~=4.7.1',
      'black',
      'blinker',
      'bowler',
      'click>=7.1,<9',
      'coverage',
      'filelock',
      'flake8>=3.6.0',
      'flake8-colors',
      'flaky',
      'freezegun',
      'github3.py',
      'gitpython',
      'importlib-resources~=1.4',
      'ipdb',
      'jira',
      'jsondiff',
      'mongomock',
      'moto~=2.0',
      'mypy==0.770',
      'parameterized',
      'paramiko',
      'pipdeptree',
      'pre-commit',
      'pypsrp',
      'pygithub',
      'pysftp',
      'pytest~=6.0',
      'pytest-cov',
      'pytest-instafail',
      'pytest-rerunfailures~=9.1',
      'pytest-timeouts',
      'pytest-xdist',
      'python-jose',
      'pywinrm',
      'qds-sdk>=1.9.6',
      'pytest-httpx',
      'requests_mock',
      'wheel',
      'yamllint',
  ]
  
  devel_minreq = cgroups + devel + doc + kubernetes + mysql + password
  devel_hadoop = devel_minreq + hdfs + hive + kerberos + presto + webhdfs
  
  # Dict of all providers which are part of the Apache Airflow repository together with their requirements
  PROVIDERS_REQUIREMENTS: Dict[str, List[str]] = {
      'airbyte': http_provider,
      'alibaba': alibaba,
      'amazon': amazon,
      'apache.beam': apache_beam,
      'apache.cassandra': cassandra,
      'apache.drill': drill,
      'apache.druid': druid,
      'apache.hdfs': hdfs,
      'apache.hive': hive,
      'apache.kylin': kylin,
      'apache.livy': http_provider,
      'apache.pig': [],
      'apache.pinot': pinot,
      'apache.spark': spark,
      'apache.sqoop': [],
      'asana': asana,
      'celery': celery,
      'cloudant': cloudant,
      'cncf.kubernetes': kubernetes,
      'databricks': databricks,
      'datadog': datadog,
      'dingding': [],
      'discord': [],
      'docker': docker,
      'elasticsearch': elasticsearch,
      'exasol': exasol,
      'facebook': facebook,
      'ftp': [],
      'google': google,
      'grpc': grpc,
      'hashicorp': hashicorp,
      'http': http,
      'imap': [],
      'jdbc': jdbc,
      'jenkins': jenkins,
      'jira': jira,
      'microsoft.azure': azure,
      'microsoft.mssql': mssql,
      'microsoft.psrp': psrp,
      'microsoft.winrm': winrm,
      'mongo': mongo,
      'mysql': mysql,
      'neo4j': neo4j,
      'odbc': odbc,
      'openfaas': [],
      'opsgenie': http_provider,
      'oracle': oracle,
      'pagerduty': pagerduty,
      'papermill': papermill,
      'plexus': plexus,
      'postgres': postgres,
      'presto': presto,
      'qubole': qubole,
      'redis': redis,
      'salesforce': salesforce,
      'samba': samba,
      'segment': segment,
      'sendgrid': sendgrid,
      'sftp': ssh,
      'singularity': singularity,
      'slack': slack,
      'snowflake': snowflake,
      'sqlite': [],
      'ssh': ssh,
      'tableau': tableau,
      'telegram': telegram,
      'trino': trino,
      'vertica': vertica,
      'yandex': yandex,
      'zendesk': zendesk,
  }
  
  # Those are all additional extras which do not have their own 'providers'
  # The 'apache.atlas' and 'apache.webhdfs' are extras that provide additional libraries
  # but they do not have separate providers (yet?), they are merely there to add extra libraries
  # That can be used in custom python/bash operators.
  ADDITIONAL_EXTRAS_REQUIREMENTS: Dict[str, List[str]] = {
      'apache.atlas': atlas,
      'apache.webhdfs': webhdfs,
  }
  
  
  # Those are extras that are extensions of the 'core' Airflow. They provide additional features
  # To airflow core. They do not have separate providers because they do not have any operators/hooks etc.
  CORE_EXTRAS_REQUIREMENTS: Dict[str, List[str]] = {
      'async': async_packages,
      'celery': celery,  # also has provider, but it extends the core with the Celery executor
      'cgroups': cgroups,
      'cncf.kubernetes': kubernetes,  # also has provider, but it extends the core with the KubernetesExecutor
      'dask': dask,
      'deprecated_api': deprecated_api,
      'github_enterprise': flask_appbuilder_authlib,
      'google_auth': flask_appbuilder_authlib,
      'kerberos': kerberos,
      'ldap': ldap,
      'leveldb': leveldb,
      'password': password,
      'rabbitmq': rabbitmq,
      'sentry': sentry,
      'statsd': statsd,
      'virtualenv': virtualenv,
  }
  
  EXTRAS_REQUIREMENTS: Dict[str, List[str]] = deepcopy(CORE_EXTRAS_REQUIREMENTS)
  
  
  def add_extras_for_all_providers() -> None:
      """
      Adds extras for all providers.
      By default all providers have the same extra name as provider id, for example
      'apache.hive' extra has 'apache.hive' provider requirement.
      """
      for provider_name, provider_requirement in PROVIDERS_REQUIREMENTS.items():
          EXTRAS_REQUIREMENTS[provider_name] = provider_requirement
  
  
  def add_additional_extras() -> None:
      """Adds extras for all additional extras."""
      for extra_name, extra_requirement in ADDITIONAL_EXTRAS_REQUIREMENTS.items():
          EXTRAS_REQUIREMENTS[extra_name] = extra_requirement
  
  
  add_extras_for_all_providers()
  add_additional_extras()
  
  #############################################################################################################
  #  The whole section can be removed in Airflow 3.0 as those old aliases are deprecated in 2.* series
  #############################################################################################################
  
  # Dictionary of aliases from 1.10 - deprecated in Airflow 2.*
  EXTRAS_DEPRECATED_ALIASES: Dict[str, str] = {
      'atlas': 'apache.atlas',
      'aws': 'amazon',
      'azure': 'microsoft.azure',
      'cassandra': 'apache.cassandra',
      'crypto': '',  # All crypto requirements are installation requirements of core Airflow
      'druid': 'apache.druid',
      'gcp': 'google',
      'gcp_api': 'google',
      'hdfs': 'apache.hdfs',
      'hive': 'apache.hive',
      'kubernetes': 'cncf.kubernetes',
      'mssql': 'microsoft.mssql',
      'pinot': 'apache.pinot',
      'qds': 'qubole',
      's3': 'amazon',
      'spark': 'apache.spark',
      'webhdfs': 'apache.webhdfs',
      'winrm': 'microsoft.winrm',
  }
  
  EXTRAS_DEPRECATED_ALIASES_NOT_PROVIDERS: List[str] = [
      "crypto",
      "webhdfs",
  ]
  
  
  def add_extras_for_all_deprecated_aliases() -> None:
      """
      Add extras for all deprecated aliases. Requirements for those deprecated aliases are the same
      as the extras they are replaced with.
      The requirements are not copies - those are the same lists as for the new extras. This is intended.
      Thanks to that if the original extras are later extended with providers, aliases are extended as well.
      """
      for alias, extra in EXTRAS_DEPRECATED_ALIASES.items():
          requirements = EXTRAS_REQUIREMENTS.get(extra) if extra != '' else []
          if requirements is None:
              raise Exception(f"The extra {extra} is missing for deprecated alias {alias}")
          EXTRAS_REQUIREMENTS[alias] = requirements
  
  
  def add_all_deprecated_provider_packages() -> None:
      """
      For deprecated aliases that are providers, we will swap the providers requirements to instead
      be the provider itself.
  
      e.g. {"kubernetes": ["kubernetes>=3.0.0, <12.0.0", ...]} becomes
      {"kubernetes": ["apache-airflow-provider-cncf-kubernetes"]}
      """
      for alias, provider in EXTRAS_DEPRECATED_ALIASES.items():
          if alias in EXTRAS_DEPRECATED_ALIASES_NOT_PROVIDERS:
              continue
          replace_extra_requirement_with_provider_packages(alias, [provider])
  
  
  add_extras_for_all_deprecated_aliases()
  
  #############################################################################################################
  #  End of deprecated section
  #############################################################################################################
  
  # This is list of all providers. It's a shortcut for anyone who would like to easily get list of
  # All providers. It is used by pre-commits.
  ALL_PROVIDERS = list(PROVIDERS_REQUIREMENTS.keys())
  
  ALL_DB_PROVIDERS = [
      'apache.cassandra',
      'apache.drill',
      'apache.druid',
      'apache.hdfs',
      'apache.hive',
      'apache.pinot',
      'cloudant',
      'exasol',
      'microsoft.mssql',
      'mongo',
      'mysql',
      'neo4j',
      'postgres',
      'presto',
      'trino',
      'vertica',
  ]
  
  # Special requirements for all database-related providers. They are de-duplicated.
  all_dbs = list({req for db_provider in ALL_DB_PROVIDERS for req in PROVIDERS_REQUIREMENTS[db_provider]})
  
  # Requirements for all "user" extras (no devel). They are de-duplicated. Note that we do not need
  # to separately add providers requirements - they have been already added as 'providers' extras above
  _all_requirements = list({req for extras_reqs in EXTRAS_REQUIREMENTS.values() for req in extras_reqs})
  
  # All user extras here
  EXTRAS_REQUIREMENTS["all"] = _all_requirements
  
  # All db user extras here
  EXTRAS_REQUIREMENTS["all_dbs"] = all_dbs
  
  # This can be simplified to devel_hadoop + _all_requirements due to inclusions
  # but we keep it for explicit sake. We are de-duplicating it anyway.
  devel_all = list(set(_all_requirements + doc + devel_minreq + devel_hadoop))
  
  # Those are packages excluded for "all" dependencies
  PACKAGES_EXCLUDED_FOR_ALL = []
  PACKAGES_EXCLUDED_FOR_ALL.extend(
      [
          'snakebite',
      ]
  )
  
  
  def is_package_excluded(package: str, exclusion_list: List[str]) -> bool:
      """
      Checks if package should be excluded.
  
      :param package: package name (beginning of it)
      :param exclusion_list: list of excluded packages
      :return: true if package should be excluded
      """
      return any(package.startswith(excluded_package) for excluded_package in exclusion_list)
  
  
  devel_all = [
      package
      for package in devel_all
      if not is_package_excluded(package=package, exclusion_list=PACKAGES_EXCLUDED_FOR_ALL)
  ]
  
  devel_ci = devel_all
  
  
  # Those are extras that we have to add for development purposes
  # They can be use to install some predefined set of dependencies.
  EXTRAS_REQUIREMENTS["doc"] = doc
  EXTRAS_REQUIREMENTS["devel"] = devel_minreq  # devel_minreq already includes doc
  EXTRAS_REQUIREMENTS["devel_hadoop"] = devel_hadoop  # devel_hadoop already includes devel_minreq
  EXTRAS_REQUIREMENTS["devel_all"] = devel_all
  EXTRAS_REQUIREMENTS["devel_ci"] = devel_ci
  
  
  def sort_extras_requirements() -> Dict[str, List[str]]:
      """
      For Python 3.6+ the dictionary order remains when keys() are retrieved.
      Sort both: extras and list of dependencies to make it easier to analyse problems
      external packages will be first, then if providers are added they are added at the end of the lists.
      """
      sorted_requirements = dict(sorted(EXTRAS_REQUIREMENTS.items()))
      for extra_list in sorted_requirements.values():
          extra_list.sort()
      return sorted_requirements
  
  
  EXTRAS_REQUIREMENTS = sort_extras_requirements()
  
  # Those providers are pre-installed always when airflow is installed.
  # Those providers do not have dependency on airflow2.0 because that would lead to circular dependencies.
  # This is not a problem for PIP but some tools (pipdeptree) show those as a warning.
  PREINSTALLED_PROVIDERS = [
      'ftp',
      'http',
      'imap',
      'sqlite',
  ]
  
  
  def get_provider_package_from_package_id(package_id: str) -> str:
      """
      Builds the name of provider package out of the package id provided/
  
      :param package_id: id of the package (like amazon or microsoft.azure)
      :return: full name of package in PyPI
      """
      package_suffix = package_id.replace(".", "-")
      return f"apache-airflow-providers-{package_suffix}"
  
  
  def get_excluded_providers() -> List[str]:
      """
      Returns packages excluded for the current python version.
      Currently the only excluded provider is apache hive for Python 3.9.
      Until https://github.com/dropbox/PyHive/issues/380 is fixed.
      """
      return ['apache.hive'] if PY39 else []
  
  
  def get_all_provider_packages() -> str:
      """Returns all provider packages configured in setup.py"""
      excluded_providers = get_excluded_providers()
      return " ".join(
          get_provider_package_from_package_id(package)
          for package in PROVIDERS_REQUIREMENTS
          if package not in excluded_providers
      )
  
  
  class AirflowDistribution(Distribution):
      """The setuptools.Distribution subclass with Airflow specific behaviour"""
  
      def parse_config_files(self, *args, **kwargs) -> None:
          """
          Ensure that when we have been asked to install providers from sources
          that we don't *also* try to install those providers from PyPI.
          Also we should make sure that in this case we copy provider.yaml files so that
          Providers manager can find package information.
          """
          super().parse_config_files(*args, **kwargs)
          if os.getenv(INSTALL_PROVIDERS_FROM_SOURCES) == 'true':
              self.install_requires = [
                  req for req in self.install_requires if not req.startswith('apache-airflow-providers-')
              ]
              provider_yaml_files = glob.glob("airflow/providers/**/provider.yaml", recursive=True)
              for provider_yaml_file in provider_yaml_files:
                  provider_relative_path = relpath(provider_yaml_file, os.path.join(my_dir, "airflow"))
                  self.package_data['airflow'].append(provider_relative_path)
          else:
              self.install_requires.extend(
                  [get_provider_package_from_package_id(package_id) for package_id in PREINSTALLED_PROVIDERS]
              )
  
  
  def replace_extra_requirement_with_provider_packages(extra: str, providers: List[str]) -> None:
      """
      Replaces extra requirement with provider package. The intention here is that when
      the provider is added as dependency of extra, there is no need to add the dependencies
      separately. This is not needed and even harmful, because in case of future versions of
      the provider, the requirements might change, so hard-coding requirements from the version
      that was available at the release time might cause dependency conflicts in the future.
  
      Say for example that you have salesforce provider with those deps:
  
      { 'salesforce': ['simple-salesforce>=1.0.0', 'tableauserverclient'] }
  
      Initially ['salesforce'] extra has those requirements and it works like that when you install
      it when INSTALL_PROVIDERS_FROM_SOURCES is set to `true` (during the development). However, when
      the production installation is used, The dependencies are changed:
  
      { 'salesforce': ['apache-airflow-providers-salesforce'] }
  
      And then, 'apache-airflow-providers-salesforce' package has those 'install_requires' dependencies:
              ['simple-salesforce>=1.0.0', 'tableauserverclient']
  
      So transitively 'salesforce' extra has all the requirements it needs and in case the provider
      changes it's dependencies, they will transitively change as well.
  
      In the constraint mechanism we save both - provider versions and it's dependencies
      version, which means that installation using constraints is repeatable.
  
      :param extra: Name of the extra to add providers to
      :param providers: list of provider ids
      """
      EXTRAS_REQUIREMENTS[extra] = [
          get_provider_package_from_package_id(package_name) for package_name in providers
      ]
  
  
  def add_provider_packages_to_extra_requirements(extra: str, providers: List[str]) -> None:
      """
      Adds provider packages as requirements to extra. This is used to add provider packages as requirements
      to the "bulk" kind of extras. Those bulk extras do not have the detailed 'extra' requirements as
      initial values, so instead of replacing them (see previous function) we can extend them.
  
      :param extra: Name of the extra to add providers to
      :param providers: list of provider ids
      """
      EXTRAS_REQUIREMENTS[extra].extend(
          [get_provider_package_from_package_id(package_name) for package_name in providers]
      )
  
  
  def add_all_provider_packages() -> None:
      """
      In case of regular installation (providers installed from packages), we should add extra dependencies to
      Airflow - to get the providers automatically installed when those extras are installed.
  
      For providers installed from sources we skip that step. That helps to test and install airflow with
      all packages in CI - for example when new providers are added, otherwise the installation would fail
      as the new provider is not yet in PyPI.
  
      """
      for provider in ALL_PROVIDERS:
          replace_extra_requirement_with_provider_packages(provider, [provider])
      add_provider_packages_to_extra_requirements("all", ALL_PROVIDERS)
      add_provider_packages_to_extra_requirements("devel_ci", ALL_PROVIDERS)
      add_provider_packages_to_extra_requirements("devel_all", ALL_PROVIDERS)
      add_provider_packages_to_extra_requirements("all_dbs", ALL_DB_PROVIDERS)
      add_provider_packages_to_extra_requirements(
          "devel_hadoop", ["apache.hdfs", "apache.hive", "presto", "trino"]
      )
      add_all_deprecated_provider_packages()
  
  
  class Develop(develop_orig):
      """Forces removal of providers in editable mode."""
  
      def run(self) -> None:
          self.announce('Installing in editable mode. Uninstalling provider packages!', level=log.INFO)
          # We need to run "python3 -m pip" because it might be that older PIP binary is in the path
          # And it results with an error when running pip directly (cannot import pip module)
          # also PIP does not have a stable API so we have to run subprocesses ¯\_(ツ)_/¯
          try:
              installed_packages = (
                  subprocess.check_output(["python3", "-m", "pip", "freeze"]).decode().splitlines()
              )
              airflow_provider_packages = [
                  package_line.split("=")[0]
                  for package_line in installed_packages
                  if package_line.startswith("apache-airflow-providers")
              ]
              self.announce(f'Uninstalling ${airflow_provider_packages}!', level=log.INFO)
              subprocess.check_call(["python3", "-m", "pip", "uninstall", "--yes", *airflow_provider_packages])
          except subprocess.CalledProcessError as e:
              self.announce(f'Error when uninstalling airflow provider packages: {e}!', level=log.WARN)
          super().run()
  
  
  class Install(install_orig):
      """Forces installation of providers from sources in editable mode."""
  
      def run(self) -> None:
          self.announce('Standard installation. Providers are installed from packages', level=log.INFO)
          super().run()
  
  
  def do_setup() -> None:
      """
      Perform the Airflow package setup.
  
      Most values come from setup.cfg, only the dynamically calculated ones are passed to setup
      function call. See https://setuptools.readthedocs.io/en/latest/userguide/declarative_config.html
      """
      setup_kwargs = {}
  
      def include_provider_namespace_packages_when_installing_from_sources() -> None:
          """
          When installing providers from sources we install all namespace packages found below airflow,
          including airflow and provider packages, otherwise defaults from setup.cfg control this.
          The kwargs in setup() call override those that are specified in setup.cfg.
          """
          if os.getenv(INSTALL_PROVIDERS_FROM_SOURCES) == 'true':
              setup_kwargs['packages'] = find_namespace_packages(include=['airflow*'])
  
      include_provider_namespace_packages_when_installing_from_sources()
      if os.getenv(INSTALL_PROVIDERS_FROM_SOURCES) == 'true':
          print("Installing providers from sources. Skip adding providers as dependencies")
      else:
          add_all_provider_packages()
  
      write_version()
      setup(
          distclass=AirflowDistribution,
          version=version,
          extras_require=EXTRAS_REQUIREMENTS,
          download_url=('https://archive.apache.org/dist/airflow/' + version),
          cmdclass={
              'extra_clean': CleanCommand,
              'compile_assets': CompileAssets,
              'list_extras': ListExtras,
              'install': Install,
              'develop': Develop,
          },
          test_suite='setup.airflow_test_suite',
          **setup_kwargs,
      )
  
  
  if __name__ == "__main__":
      do_setup()
  