setup.py

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Based on https://github.com/pybind/cmake_example

import os
import sys
import subprocess

from setuptools import setup, Extension, find_namespace_packages
from setuptools.command.build_ext import build_ext

PLAT_TO_CMAKE = {
    "win32": "Win32",
    "win-amd64": "x64",
    "win-arm32": "ARM",
    "win-arm64": "ARM64",
}


class CMakeExtension(Extension):
    def __init__(self, name, sourcedir=""):
        Extension.__init__(self, name, sources=[])
        self.sourcedir = os.path.abspath(sourcedir)


class CMakeBuild(build_ext):

    def build_extension(self, ext):
        extdir = os.path.abspath(os.path.dirname(self.get_ext_fullpath(ext.name)))

        if not extdir.endswith(os.path.sep):
            extdir += os.path.sep

        cfg = "Debug" if self.debug else "Release"

        cmake_generator = os.environ.get("CMAKE_GENERATOR", "")

        cmake_args = [
            f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY={extdir}",
            f"-DPYTHON_EXECUTABLE={sys.executable}",
            f"-DCMAKE_BUILD_TYPE={cfg}",
            "-DWARNINGS_AS_ERRORS=OFF",
            "-DENABLE_TESTING=OFF",
            "-DBoost_NO_BOOST_CMAKE=ON", 
            "-DMAKE_DOCS=OFF"
        ]
        build_args = []

        if self.compiler.compiler_type != "msvc":
            if not cmake_generator:
                cmake_args += ["-GNinja"]

        else:

            single_config = any(x in cmake_generator for x in {"NMake", "Ninja"})

            contains_arch = any(x in cmake_generator for x in {"ARM", "Win64"})

            if not single_config and not contains_arch:
                cmake_args += ["-A", PLAT_TO_CMAKE[self.plat_name]]

            if not single_config:
                cmake_args += [
                    "-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_{}={}".format(cfg.upper(), extdir)
                ]
                build_args += ["--config", cfg]

        if "CMAKE_BUILD_PARALLEL_LEVEL" not in os.environ:
            if hasattr(self, "parallel") and self.parallel:
                build_args += ["-j{}".format(self.parallel)]

        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
        )
        subprocess.check_call(
            ["cmake", "--build", "."] + build_args, cwd=self.build_temp
        )

setup(
    name='EWF',
    version='1.0.1',
    author='Jaromir Sant',
    url='https://jarosant.github.io/',
    install_requires=[
        'pybind11',
    ],
    description='Exact simulation for Wright--Fisher diffusions.',
    packages=find_namespace_packages(),
    ext_modules=[CMakeExtension('EWF')],
    cmdclass=dict(build_ext=CMakeBuild),
    zip_safe=False,
)