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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) | |