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| # Copyright 2017 The Abseil Authors. | |
| # | |
| # Licensed 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. | |
| """Internal helper for running tests on Windows Bazel.""" | |
| import os | |
| from absl import flags | |
| FLAGS = flags.FLAGS | |
| def get_executable_path(py_binary_name): | |
| """Returns the executable path of a py_binary. | |
| This returns the executable path of a py_binary that is in another Bazel | |
| target's data dependencies. | |
| On Linux/macOS, the path and __file__ has the same root directory. | |
| On Windows, bazel builds an .exe file and we need to use the MANIFEST file | |
| the location the actual binary. | |
| Args: | |
| py_binary_name: string, the name of a py_binary that is in another Bazel | |
| target's data dependencies. | |
| Raises: | |
| RuntimeError: Raised when it cannot locate the executable path. | |
| """ | |
| if os.name == 'nt': | |
| py_binary_name += '.exe' | |
| manifest_file = os.path.join(FLAGS.test_srcdir, 'MANIFEST') | |
| workspace_name = os.environ['TEST_WORKSPACE'] | |
| manifest_entry = '{}/{}'.format(workspace_name, py_binary_name) | |
| with open(manifest_file, 'r') as manifest_fd: | |
| for line in manifest_fd: | |
| tokens = line.strip().split(' ') | |
| if len(tokens) != 2: | |
| continue | |
| if manifest_entry == tokens[0]: | |
| return tokens[1] | |
| raise RuntimeError( | |
| 'Cannot locate executable path for {}, MANIFEST file: {}.'.format( | |
| py_binary_name, manifest_file)) | |
| else: | |
| # NOTE: __file__ may be .py or .pyc, depending on how the module was | |
| # loaded and executed. | |
| path = __file__ | |
| # Use the package name to find the root directory: every dot is | |
| # a directory, plus one for ourselves. | |
| for _ in range(__name__.count('.') + 1): | |
| path = os.path.dirname(path) | |
| root_directory = path | |
| return os.path.join(root_directory, py_binary_name) | |