setup.py

"""
This file started from
https://github.com/mihaidusmanu/pycolmap/blob/master/setup.py
BSD-3-Clause License 


Copyright (c) 2020, Torsten Sattler
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.

    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.

    * Neither the name of Torsten Sattler nor the
      names of its contributors may be used to endorse or promote products
      derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

author: Torsten Sattler, torsten.sattler.de@googlemail.com
python bindings created by NAVER LABS Europe
"""
import os
import re
import sys
import platform
import subprocess

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


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":
            if os.environ.get('CMAKE_TOOLCHAIN_FILE') is not None:
                cmake_toolchain_file = os.environ.get('CMAKE_TOOLCHAIN_FILE')
                print(f'-DCMAKE_TOOLCHAIN_FILE={cmake_toolchain_file}')
                cmake_args += [f'-DCMAKE_TOOLCHAIN_FILE={cmake_toolchain_file}']
            if os.environ.get('CMAKE_PREFIX_PATH') is not None:
                cmake_prefix_path = os.environ.get('CMAKE_PREFIX_PATH')
                print(f'-DCMAKE_PREFIX_PATH={cmake_prefix_path}')
                cmake_args += [f'-DCMAKE_PREFIX_PATH={cmake_prefix_path}']
            cmake_args += ['-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_{}={}'.format(cfg.upper(), extdir)]
            if sys.maxsize > 2**32:
                cmake_args += ['-DVCPKG_TARGET_TRIPLET=x64-windows']
                cmake_args += ['-A', 'x64']
            build_args += ['--', '/m']
        else:
            cmake_args += ['-DCMAKE_BUILD_TYPE=' + cfg]
            if os.environ.get('CMAKE_PREFIX_PATH') is not None:
                cmake_prefix_path = os.environ.get('CMAKE_PREFIX_PATH')
                print(f'-DCMAKE_PREFIX_PATH={cmake_prefix_path}')
                cmake_args += [f'-DCMAKE_PREFIX_PATH={cmake_prefix_path}']
            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)
        print(['cmake', ext.sourcedir] + cmake_args)
        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)

setup(
    name='pyransaclib',
    version='0.0.1',
    author='Torsten Sattler (bindings by Naver LABS Europe)',
    author_email='torsten.sattler.de@googlemail.com',
    description='RansacLib bindings',
    long_description='',
    ext_modules=[CMakeExtension('ransaclib')],
    cmdclass=dict(build_ext=CMakeBuild),
    zip_safe=False,
)