setup.py

import os
import re
import sys
import sysconfig
import platform
import subprocess

from distutils.version import LooseVersion
from setuptools import setup, Extension
from setuptools.command.build_ext import build_ext


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)
        print()  # Add an empty line for cleaner output

from setuptools.command.test import test as TestCommand

class CatchTestCommand(TestCommand):
    def distutils_dir_name(self, dname):
        """Returns the name of a distutils build directory"""
        dir_name = "{dirname}.{platform}-{version[0]}.{version[1]}"
        return dir_name.format(dirname=dname,
                               platform=sysconfig.get_platform(),
                               version=sys.version_info)

    #def run(self):
    #    # Run Python tests
    #    super(CatchTestCommand, self).run()
    #    print("\nPython tests complete, now running C++ tests...\n")
    #    # Run catch tests
    #    subprocess.call(['./*_test'],
    #                    cwd=os.path.join('build',
    #                                     self.distutils_dir_name('temp')),
    #                    shell=True)

setup(
    # Information
    name = "tricubic",
    version = "1.0.2",
    url = "https://github.com/danielguterding/pytricubic",
    author = "Daniel Guterding",
    author_email = "daniel.guterding@gmail.com",
    license = "MIT",
    keywords = "tricubic cubic interpolation",
    # add extension module
    ext_modules=[CMakeExtension('tricubic')],
    # add custom build_ext command
    cmdclass=dict(build_ext=CMakeBuild, test=CatchTestCommand),
    zip_safe=False,
    description="A tricubic interpolation module for python."
)