| # 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) |