mirror of
https://github.com/google/benchmark.git
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d3ad0b9d11
* Add Python bindings. * Add license headers. * Change example to a test. * Add example usage to module docstring.
125 lines
3.8 KiB
Python
125 lines
3.8 KiB
Python
import os
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import posixpath
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import re
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import shutil
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import sys
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from distutils import sysconfig
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import setuptools
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from setuptools.command import build_ext
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here = os.path.dirname(os.path.abspath(__file__))
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IS_WINDOWS = sys.platform.startswith('win')
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def _get_version():
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"""Parse the version string from __init__.py."""
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with open(os.path.join(here, 'bindings', 'python', 'benchmark', '__init__.py')) as f:
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try:
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version_line = next(
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line for line in f if line.startswith('__version__'))
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except StopIteration:
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raise ValueError('__version__ not defined in __init__.py')
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else:
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ns = {}
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exec(version_line, ns) # pylint: disable=exec-used
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return ns['__version__']
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def _parse_requirements(path):
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with open(os.path.join(here, path)) as f:
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return [
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line.rstrip() for line in f
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if not (line.isspace() or line.startswith('#'))
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]
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class BazelExtension(setuptools.Extension):
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"""A C/C++ extension that is defined as a Bazel BUILD target."""
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def __init__(self, name, bazel_target):
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self.bazel_target = bazel_target
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self.relpath, self.target_name = (
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posixpath.relpath(bazel_target, '//').split(':'))
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setuptools.Extension.__init__(self, name, sources=[])
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class BuildBazelExtension(build_ext.build_ext):
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"""A command that runs Bazel to build a C/C++ extension."""
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def run(self):
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for ext in self.extensions:
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self.bazel_build(ext)
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build_ext.build_ext.run(self)
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def bazel_build(self, ext):
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with open('WORKSPACE', 'r') as f:
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workspace_contents = f.read()
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with open('WORKSPACE', 'w') as f:
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f.write(re.sub(
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r'(?<=path = ").*(?=", # May be overwritten by setup\.py\.)',
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sysconfig.get_python_inc().replace(os.path.sep, posixpath.sep),
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workspace_contents))
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if not os.path.exists(self.build_temp):
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os.makedirs(self.build_temp)
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bazel_argv = [
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'bazel',
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'build',
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ext.bazel_target,
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'--symlink_prefix=' + os.path.join(self.build_temp, 'bazel-'),
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'--compilation_mode=' + ('dbg' if self.debug else 'opt'),
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]
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if IS_WINDOWS:
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# Link with python*.lib.
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for library_dir in self.library_dirs:
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bazel_argv.append('--linkopt=/LIBPATH:' + library_dir)
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self.spawn(bazel_argv)
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shared_lib_suffix = '.dll' if IS_WINDOWS else '.so'
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ext_bazel_bin_path = os.path.join(
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self.build_temp, 'bazel-bin',
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ext.relpath, ext.target_name + shared_lib_suffix)
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ext_dest_path = self.get_ext_fullpath(ext.name)
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ext_dest_dir = os.path.dirname(ext_dest_path)
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if not os.path.exists(ext_dest_dir):
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os.makedirs(ext_dest_dir)
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shutil.copyfile(ext_bazel_bin_path, ext_dest_path)
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setuptools.setup(
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name='google-benchmark',
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version=_get_version(),
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url='https://github.com/google/benchmark',
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description='A library to benchmark code snippets.',
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author='Google',
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author_email='benchmark-py@google.com',
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# Contained modules and scripts.
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package_dir={'': 'bindings/python'},
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packages=setuptools.find_packages('bindings/python'),
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install_requires=_parse_requirements('bindings/python/requirements.txt'),
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cmdclass=dict(build_ext=BuildBazelExtension),
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ext_modules=[BazelExtension('benchmark._benchmark', '//bindings/python/benchmark:_benchmark')],
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zip_safe=False,
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# PyPI package information.
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classifiers=[
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'Development Status :: 4 - Beta',
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'Intended Audience :: Developers',
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'Intended Audience :: Science/Research',
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'License :: OSI Approved :: Apache Software License',
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'Programming Language :: Python :: 3.6',
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'Programming Language :: Python :: 3.7',
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'Topic :: Software Development :: Testing',
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'Topic :: System :: Benchmark',
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],
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license='Apache 2.0',
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keywords='benchmark',
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)
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