| #!/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. |
| ################################################################################ |
| import glob |
| import logging |
| import os |
| import sys |
| |
| |
| def _is_flink_home(path): |
| flink_script_file = path + "/bin/flink" |
| if len(glob.glob(flink_script_file)) > 0: |
| return True |
| else: |
| return False |
| |
| |
| def _is_apache_flink_libraries_home(path): |
| flink_dist_jar_file = path + "/lib/flink-dist*.jar" |
| if len(glob.glob(flink_dist_jar_file)) > 0: |
| return True |
| else: |
| return False |
| |
| |
| def _find_flink_home(): |
| """ |
| Find the FLINK_HOME. |
| """ |
| # If the environment has set FLINK_HOME, trust it. |
| if 'FLINK_HOME' in os.environ: |
| return os.environ['FLINK_HOME'] |
| else: |
| try: |
| current_dir = os.path.abspath(os.path.dirname(os.path.abspath(__file__))) |
| flink_root_dir = os.path.abspath(current_dir + "/../../") |
| build_target = glob.glob(flink_root_dir + "/flink-dist/target/flink-*-bin/flink-*") |
| if len(build_target) > 0 and _is_flink_home(build_target[0]): |
| os.environ['FLINK_HOME'] = build_target[0] |
| return build_target[0] |
| |
| FLINK_HOME = None |
| for module_home in __import__('pyflink').__path__: |
| if _is_apache_flink_libraries_home(module_home): |
| os.environ['FLINK_LIB_DIR'] = os.path.join(module_home, 'lib') |
| os.environ['FLINK_PLUGINS_DIR'] = os.path.join(module_home, 'plugins') |
| os.environ['FLINK_OPT_DIR'] = os.path.join(module_home, 'opt') |
| if _is_flink_home(module_home): |
| FLINK_HOME = module_home |
| if FLINK_HOME is not None: |
| os.environ['FLINK_HOME'] = FLINK_HOME |
| return FLINK_HOME |
| except Exception: |
| pass |
| logging.error("Could not find valid FLINK_HOME(Flink distribution directory) " |
| "in current environment.") |
| sys.exit(-1) |
| |
| |
| def _find_flink_source_root(): |
| """ |
| Find the flink source root directory. |
| """ |
| try: |
| return os.path.abspath(os.path.dirname(os.path.abspath(__file__)) + "/../../") |
| except Exception: |
| pass |
| logging.error("Could not find valid flink source root directory in current environment.") |
| sys.exit(-1) |
| |
| |
| if __name__ == "__main__": |
| print(_find_flink_home()) |