setup.py

# Copyright 20018-2019 wxCppPy. All Rights Reserved.
# Licensed to MIT see LICENSE.txt

# Thanks to Sylvain Corlay see https://github.com/pybind/python_example'

# N'installer pas wheel sinon setuptools.setup essaiera de l'utiliser et je n'ai pas réussi à le configurer sur Mageia6.
# Le tag de la plateforme lui est inconnu.

from setuptools import setup, Extension
from setuptools.command.build_ext import build_ext
import os
import sys
import setuptools

import wxcpppyconfig

# https://setuptools.readthedocs.io/en/latest/setuptools.html#developer-s-guide
# https://setuptools.readthedocs.io/en/latest/history.html?highlight=ext_modules

__version__ = '0.0.2'

module_name = 'wxcpppy'


class Directories(object):
    wxcpppy_path = os.environ["PWD"] + "/.."
    """C'est la seul variable qui permet de retrouver par défaut le répertoire d'éxécution du script. Pip exécute le 
    tout dans un répertoire temporaire.
    """

    wxcpppy_config = wxcpppyconfig.WXCppPyConfig()
    """Liste des chemins pour compiler le projet wxCppPy::API_Py"""

    @staticmethod
    def get_includes_directories():

        result = [Directories.wxcpppy_path + "/API_Py/include",
                  Directories.wxcpppy_path + "/API/include",
                  GetPybindInclude(),
                  GetPybindInclude(user=True),
                  Directories.wxcpppy_config.pyenv_include_path,
                  Directories.wxcpppy_config.cppclay_path + "/include",
                  Directories.wxcpppy_config.wxpython_path + "/ext/wxWidgets/include",
                  Directories.wxcpppy_config.wxpython_path + "/build/wxbld/gtk3/lib/wx/include/gtk3-unicode-3.0",
                  Directories.wxcpppy_config.wxpython_path + "/sip/siplib",
                  Directories.wxcpppy_config.wxpython_path + "/wx/include",
                  Directories.wxcpppy_config.pyenv_path,
                  Directories.wxcpppy_config.pyenv_sp_path,
                  Directories.wxcpppy_config.pyenv_include_path,
                  Directories.wxcpppy_config.pybind11_path,
                  Directories.wxcpppy_config.wxpython_path,
                  Directories.wxcpppy_config.cppclay_path,
                  Directories.wxcpppy_config.cppclaydll_path]

        return result

    @staticmethod
    def get_macros():
        result = [
            ('PYTHONENV_PATH', Directories.wxcpppy_config.pyenv_path),
            ('PYTHONENV_SP_PATH', Directories.wxcpppy_config.pyenv_sp_path),
            ('PYTHONENV_INCLUDE_PATH', Directories.wxcpppy_config.pyenv_include_path),
            ('PYBIND11_PATH', Directories.wxcpppy_config.pybind11_path),
            ('WXPYTHON_PATH', Directories.wxcpppy_config.wxpython_path),
            ('CPPCLAY_PATH', Directories.wxcpppy_config.cppclay_path),
            ('CPPCLAYDLL_PATH', Directories.wxcpppy_config.cppclaydll_path),
            ('WXCPPPY_PATH', Directories.wxcpppy_path)]

        for define in Directories.get_defines():
            result.append((define, None))

        return result

    @staticmethod
    def get_libraries():
        path_wx_python = Directories.wxcpppy_config.pyenv_sp_path + '/wx/'

        prefix_wx = path_wx_python + 'lib'
        suffix_wx = '.so'

        prefix_wx_cpython = path_wx_python
        suffix_wx_cpython = Directories.wxcpppy_config.pyenv_ext_suffix

        wx_paths = ['wx_gtk3u_xrc-3.0',
                    'wx_gtk3u_webview-3.0',
                    'wx_gtk3u_html-3.0',
                    'wx_gtk3u_adv-3.0',
                    'wx_gtk3u_core-3.0',
                    'wx_baseu_xml-3.0',
                    'wx_baseu_net-3.0',
                    'wx_baseu-3.0',
                    'wx_gtk3u_aui-3.0']

        for i in range(0, len(wx_paths)):
            wx_paths[i] = prefix_wx + wx_paths[i] + suffix_wx

        wx_cpython_path = ['_aui',
                           '_propgrid',
                           '_ribbon',
                           '_richtext',
                           '_xrc',
                           '_xml',
                           '_html2',
                           '_html',
                           '_glcanvas',
                           '_stc',
                           '_grid',
                           '_dataview',
                           '_adv',
                           '_core',
                           'siplib']

        for i in range(0, len(wx_cpython_path)):
            wx_cpython_path[i] = prefix_wx_cpython + wx_cpython_path[i] + suffix_wx_cpython

        result = wx_paths.copy()
        result.extend(wx_cpython_path)

        for i in range(0, len(result)):
            path = result[i]
            assert os.path.exists(path), path + " doesn't exist"
            result[i] = os.path.normpath(path)

        result.extend([Directories.wxcpppy_path + "/API/bin/Debug/libAPI.so",
                       Directories.wxcpppy_config.cppclaydll_path + '/libclay.so', 'pthread'])

        return result

    @staticmethod
    def get_libraries_directories():
        return [Directories.wxcpppy_config.cppclaydll_path,
                Directories.wxcpppy_config.pyenv_sp_path + "/wx",
                Directories.wxcpppy_path + "/API/bin/Debug"]

    @staticmethod
    def get_compiler_options():
        return ['-O3',
                '-s',
                '-fexceptions',
                '-fpic']  # todo voir -rpath et -rpath-link

    @staticmethod
    def get_defines():
        return ['_FILE_OFFSET_BITS=64',
                'WXUSINGDLL',
                '__WXGTK__',
                'wxUSE_UNICODE',
                'wxUSE_MENUS',
                'wxUSE_CMDLINE_PARSER']


class GetPybindInclude(object):
    """Helper class to determine the pybind11 include path

    The purpose of this class is to postpone importing pybind11
    until it is actually installed, so that the ``get_include()``
    method can be invoked. """

    def __init__(self, user=False):
        self.user = user

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


ext_modules = [
    # https://docs.python.org/3/extending/building.html
    Extension(
        module_name,
        sources=['src/Module.cpp', 'src/Vector.cpp', 'src/wxAccess.cpp'],
        define_macros=Directories.get_macros(),
        include_dirs=Directories.get_includes_directories(),
        libraries=Directories.get_libraries(),
        library_dirs=Directories.get_libraries_directories(),
        language='c++'
    ),
]


# As of Python 3.6, CCompiler has a `has_flag` method.
# cf http://bugs.python.org/issue26689
def has_flag(compiler, flag_name):
    """Return a boolean indicating whether a flag name is supported on
    the specified compiler.
    """
    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=[flag_name])
        except setuptools.distutils.errors.CompileError:
            return False
    return True


def cpp_flag(compiler):
    """Return the -std=c++[11/14/17] compiler flag.

    The c++17 is prefered over c++14/11 (when it is available).
    """
    if has_flag(compiler, '-std=c++17'):
        return '-std=c++17'
    elif has_flag(compiler, '-std=c++1z'):  # gcc / clang
        return '-std=c++11'
    elif has_flag(compiler, '-std=c++1atest'):  # MSVC
        return '-std=c++11'
    elif has_flag(compiler, '-std=c++11'):
        return '-std=c++11'
    elif has_flag(compiler, '-std=c++14'):
        return '-std=c++14'
    elif has_flag(compiler, '-std=c++11'):
        return '-std=c++11'
    else:
        raise RuntimeError('Unsupported compiler -- at least C++11 support is needed!')


class BuildExt(build_ext):
    """A custom build extension for adding compiler-specific options."""
    c_opts = {
        'msvc': ['/EHsc'],
        'unix': [],
    }

    if sys.platform == 'darwin':
        c_opts['unix'] += ['-stdlib=libc++', '-mmacosx-version-min=10.7']

    def build_extensions(self):
        ct = self.compiler.compiler_type
        opts = self.c_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 option in Directories.get_compiler_options():
            opts.append(option)

        for ext in self.extensions:
            ext.extra_compile_args = opts

        build_ext.build_extensions(self)


setup(
    name=module_name,
    version=__version__,
    author='Pierre Pontier',
    author_email='http://www.suryavarman.fr/contact/',
    url='http://www.suryavarman.fr/python_cpp_pybind_wx/',
    license='MIT',
    description='A tutorial project using pybind11 and wxWidgets',
    # long_description=open(os.path.dirname(os.path.abspath(__file__)) + '/../README.md').read(),
    ext_modules=ext_modules,
    install_requires=['pybind11>=2.2', 'wxPython>=4'],
    setup_requires=['wxPython>=4'],
    include_package_data=True,
    cmdclass={'build_ext': BuildExt},
    zip_safe=False,
)