Method build_extension

extensions.py:40–114

(self, ext: Extension)

        return "Debug" if self.debug else "Release"

    def build_extension(self, ext: Extension):
        # - make sure path ends with delimiter
        # - required for auto-detection of auxiliary "native" libs
        ext_dir = Path(self.get_ext_fullpath(ext.name)).parent.absolute()
        _ed = ext_dir.as_posix()

        build_dir = create_directory(Path(self.build_temp))

        # package builds in 2 steps, first to compile the nlopt package and second to build the DLL
        cmd = [
            "cmake",
            "-LAH",
            f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY={_ed}",
            f"-DPython_EXECUTABLE={sys.executable}",
            "-DNLOPT_GUILE=OFF",
            "-DNLOPT_MATLAB=OFF",
            "-DNLOPT_OCTAVE=OFF",
            ext.source_dir.as_posix(),
        ]

        if platform.system() == "Windows":
            cmd.insert(
                2, f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_{self.config.upper()}={_ed}"
            )

        execute_command(
            cmd=cmd,
            cwd=build_dir,
            env={
                **os.environ.copy(),
                "CXXFLAGS": f'{os.environ.get("CXXFLAGS", "")} -DVERSION_INFO="{self.distribution.get_version()}"',
            },
        )

        # build the DLL
        execute_command(
            [
                "cmake",
                "--build",
                ".",
                "--config",
                self.config,
                "--",
                "-m" if platform.system() == "Windows" else "-j2",
            ],
            cwd=build_dir,
        )

        # Copy over the important bits
        nlopt_py = build_dir / "extern" / "nlopt" / "src" / "swig" / "python" / "nlopt.py"

        logging.info(
            f"Ext Dir - {ext_dir}\n"
            + "\n".join(f"  - {file.as_posix()}" for file in ext_dir.rglob("*"))
        )
        for folder in [ext_dir, nlopt_py.parent]:
            logging.info(
                f"Files in {folder.as_posix()}\n"