setup.py

'''
The copyright in this software is being made available under this Software
Copyright License. This software may be subject to other third party and
contributor rights, including patent rights, and no such rights are
granted under this license.
Copyright (c) 1995 - 2019 Fraunhofer-Gesellschaft zur Förderung der
angewandten Forschung e.V. (Fraunhofer)
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted for purpose of testing the functionalities of
this software 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 names of the copyright holders 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 THE COPYRIGHT HOLDERS OR
CONTRIBUTORS 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.
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WITHOUT LIMITATION THE PATENTS OF THE COPYRIGHT HOLDERS AND
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COPYRIGHT HOLDERS AND CONTRIBUTORS PROVIDE NO WARRANTY OF PATENT
NON-INFRINGEMENT WITH RESPECT TO THIS SOFTWARE.
'''
import sys

MIN_PYTHON = (3, 6)

if sys.version_info < MIN_PYTHON:
    sys.exit( "Python {}.{} or later is required.".format( *MIN_PYTHON ) )

from setuptools import setup, find_packages, Extension
from glob import glob
from setuptools.command.build_ext import build_ext
import setuptools

__version__ = '0.1.0'


class get_pybind_include(object):
    def __init__(self, user=False):
        self.user = user

    def __str__(self):
        import pybind11
        return pybind11.get_include(self.user)


sources = glob( "extensions/deepCABAC/source/*.cpp*" ) + \
          glob( "extensions/deepCABAC/source/Lib/CommonLib/*.cpp*" ) + \
          glob( "extensions/deepCABAC/source/Lib/EncLib/*.cpp*" ) + \
          glob( "extensions/deepCABAC/source/Lib/DecLib/*.cpp*" )

ext_modules = [
    Extension(
        'deepCABAC',
        sources=sources,
        include_dirs=[
            # Path to pybind11 headers
            get_pybind_include(),
            get_pybind_include(user=True),
            "extensions/deepCABAC/source",
            "extensions/deepCABAC/source/Lib",
            "extensions/deepCABAC/source/Lib/DecLib"
        ],
        language='c++'
    ),
]

# cf http://bugs.python.org/issue26689
def has_flag(compiler, flagname):
    import tempfile
    with tempfile.NamedTemporaryFile('w', suffix='.cpp') as f:
        f.write('int main (int argc, char **argv) { return 0; }')
        try:
            compiler.compile([f.name], extra_postargs=[flagname])
        except setuptools.distutils.errors.CompileError:
            return False
    return True


def cpp_flag(compiler):
    flags = ['-std=c++17', '-std=c++14', '-std=c++11']

    for flag in flags:
        if has_flag(compiler, flag): return flag

    raise RuntimeError('Unsupported compiler -- at least C++11 support '
                       'is needed!')


class BuildExt(build_ext):
    c_opts = {
        'msvc': ['/EHsc'],
        'unix': [],
    }
    l_opts = {
        'msvc': [],
        'unix': [],
    }

    if sys.platform == 'darwin':
        darwin_opts = ['-stdlib=libc++', '-mmacosx-version-min=10.14']
        c_opts['unix'] += darwin_opts
        l_opts['unix'] += darwin_opts

    def build_extensions(self):
        ct = self.compiler.compiler_type
        opts = self.c_opts.get(ct, [])
        link_opts = self.l_opts.get(ct, [])
        if ct == 'unix':
            opts.append('-DVERSION_INFO="%s"' % self.distribution.get_version())
            opts.append(cpp_flag(self.compiler))
            if has_flag(self.compiler, '-fvisibility=hidden'):
                opts.append('-fvisibility=hidden')
        elif ct == 'msvc':
            opts.append('/DVERSION_INFO=\\"%s\\"' % self.distribution.get_version())
        for ext in self.extensions:
            ext.extra_compile_args = opts
            ext.extra_link_args = link_opts
        build_ext.build_extensions(self)

setup(
    name='deepCABAC',
    version=__version__,
    author='Stefan Matlage',
    author_email='stefan.matlage@hhi.fraunhofer.de',
    url='https://hhi.fraunhofer.de',
    description='deepCABAC C++ binding using pybind11.',
    long_description='',
    ext_modules=ext_modules,
    install_requires=['pybind11>=2.3'],
    setup_requires=['pybind11>=2.3'],
    cmdclass={'build_ext': BuildExt},
    zip_safe=False,
)