setup.py

import os
import re
import subprocess
import sys
from pathlib import Path

from setuptools import Extension, find_packages, setup
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: str, sourcedir: str = "") -> None:
        super().__init__(name, sources=[])
        self.sourcedir = os.fspath(Path(sourcedir).resolve())


class CMakeBuild(build_ext):
    def build_extension(self, ext: CMakeExtension) -> None:
        ext_fullpath = Path.cwd() / self.get_ext_fullpath(ext.name)
        extdir = ext_fullpath.parent.resolve()

        debug = int(os.environ.get("DEBUG", 0)) if self.debug is None else self.debug
        cfg = "Debug" if debug else "Release"

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

        cmake_args = [
            f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY={extdir}{os.sep}",
            f"-DPYTHON_EXECUTABLE={sys.executable}",
            f"-DCMAKE_BUILD_TYPE={cfg}",  # not used on MSVC, but no harm
        ]
        build_args = []
        if "CMAKE_ARGS" in os.environ:
            cmake_args += [item for item in os.environ["CMAKE_ARGS"].split(" ") if item]

        cmake_args += [f"-DSPOTS_VERSION_INFO={self.distribution.get_version()}"]

        if self.compiler.compiler_type != "msvc":
            if not cmake_generator or cmake_generator == "Ninja":
                try:
                    import ninja

                    ninja_executable_path = Path(ninja.BIN_DIR) / "ninja"
                    cmake_args += [
                        "-GNinja",
                        f"-DCMAKE_MAKE_PROGRAM:FILEPATH={ninja_executable_path}",
                    ]
                except ImportError:
                    pass

        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 += [f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_{cfg.upper()}={extdir}"]
                build_args += ["--config", cfg]

        if sys.platform.startswith("darwin"):
            archs = re.findall(r"-arch (\S+)", os.environ.get("ARCHFLAGS", ""))
            if archs:
                cmake_args += ["-DCMAKE_OSX_ARCHITECTURES={}".format(";".join(archs))]

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

        build_temp = Path(self.build_temp) / ext.name
        if not build_temp.exists():
            build_temp.mkdir(parents=True)

        subprocess.run(["cmake", ext.sourcedir, *cmake_args], cwd=build_temp, check=True)
        subprocess.run(["cmake", "--build", ".", *build_args], cwd=build_temp, check=True)


# Read README for long description if available
long_description = ""
try:
    with open("README.md", encoding="utf-8") as f:
        long_description = f.read()
except Exception:
    pass


install_requires = [
    "ray[default]==2.47.0",
    "click==8.2.1",
]

setup(
    name="spots",
    version="1.0.0",
    author="Tomas Cizek",
    author_email="cizek@kam.mff.cuni.cz",
    description="SPOTS: Sprouts Parallel Outcome Tree Search",
    long_description=long_description,
    long_description_content_type="text/markdown",
    packages=find_packages("src"),
    package_dir={"": "src"},
    include_package_data=True,
    zip_safe=False,
    ext_modules=[CMakeExtension("spots._cpp", sourcedir="modules/spots_cpp")],
    cmdclass={"build_ext": CMakeBuild},
    setup_requires=["wheel"],
    install_requires=install_requires,
    python_requires=">=3.7",
    entry_points={
        "console_scripts": [
            "spots-solver = spots.cli:main",
        ]
    },
)