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#! /usr/bin/env python3
import os
import re
import sys
import platform
import subprocess
from distutils.version import LooseVersion
from setuptools import setup, Extension, find_packages
from setuptools.command.build_ext import build_ext
from shutil import copyfile, copymode
class CMakeExtension(Extension):
def __init__(self, name, sourcedir=''):
Extension.__init__(self, name, sources=[])
self.sourcedir = os.path.abspath(sourcedir)
class CMakeBuild(build_ext):
def run(self):
try:
out = subprocess.check_output(['cmake', '--version'])
except OSError:
raise RuntimeError(
"CMake must be installed to build the following extensions: " +
", ".join(e.name for e in self.extensions))
if platform.system() == "Windows":
cmake_version = LooseVersion(re.search(r'version\s*([\d.]+)',
out.decode()).group(1))
if cmake_version < '3.1.0':
raise RuntimeError("CMake >= 3.1.0 is required on Windows")
for ext in self.extensions:
self.build_extension(ext)
def build_extension(self, ext):
extdir = os.path.abspath(
os.path.dirname(self.get_ext_fullpath(ext.name)))
cmake_args = ['-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=' + extdir,
'-DPYTHON_EXECUTABLE=' + sys.executable]
cfg = 'Debug' if self.debug else 'Release'
build_args = ['--config', cfg]
if platform.system() == "Windows":
cmake_args += ['-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_{}={}'.format(
cfg.upper(),
extdir)]
if sys.maxsize > 2**32:
cmake_args += ['-A', 'x64']
build_args += ['--', '/m']
else:
cmake_args += ['-DCMAKE_BUILD_TYPE=' + cfg]
build_args += ['--', '-j2']
env = os.environ.copy()
env['CXXFLAGS'] = '{} -DVERSION_INFO=\\"{}\\"'.format(
env.get('CXXFLAGS', ''),
self.distribution.get_version())
if not os.path.exists(self.build_temp):
os.makedirs(self.build_temp)
subprocess.check_call(['cmake', ext.sourcedir] + cmake_args,
cwd=self.build_temp, env=env)
subprocess.check_call(['cmake', '--build', '.'] + build_args,
cwd=self.build_temp)
# Copy *_test file to tests directory
test_bin = os.path.join(self.build_temp, 'python_cpp_example_test')
self.copy_test_file(test_bin)
print() # Add an empty line for cleaner output
def copy_test_file(self, src_file):
'''
Copy ``src_file`` to ``dest_file`` ensuring parent directory exists.
By default, message like `creating directory /path/to/package` and
`copying directory /src/path/to/package -> path/to/package` are displayed on standard output. Adapted from scikit-build.
'''
# Create directory if needed
dest_dir = os.path.join(os.path.dirname(
os.path.abspath(__file__)), 'tests', 'bin')
if dest_dir != "" and not os.path.exists(dest_dir):
print("creating directory {}".format(dest_dir))
os.makedirs(dest_dir)
# Copy file
dest_file = os.path.join(dest_dir, os.path.basename(src_file))
print("copying {} -> {}".format(src_file, dest_file))
copyfile(src_file, dest_file)
copymode(src_file, dest_file)
setup(
name='python_cpp_example',
version='0.2',
author='Benjamin Jack',
author_email='benjamin.r.jack@gmail.com',
description='A hybrid Python/C++ test project',
long_description='',
packages=find_packages('src'),
package_dir={'': 'src'},
ext_modules=[CMakeExtension('python_cpp_example/python_cpp_example')],
cmdclass=dict(build_ext=CMakeBuild),
test_suite='tests',
zip_safe=False,
)