def get_extensions()

in setup.py [0:0]

• 57 lines of code
• 14 McCabe index (conditional complexity)

def get_extensions():

    extension = CppExtension

    define_macros = []

    extra_link_args = []
    extra_compile_args = {"cxx": ["-O3", "-g", "-std=c++14"]}
    if int(os.environ.get("DEBUG", 0)):
        extra_compile_args = {
            "cxx": ["-O0", "-fno-inline", "-g", "-std=c++14"]}
        extra_link_args = ["-O0", "-g"]
    if (torch.cuda.is_available() and CUDA_HOME is not None) or os.getenv(
        "FORCE_CUDA", "0"
    ) == "1":
        extension = CUDAExtension
        define_macros += [("WITH_CUDA", None)]
        nvcc_flags = os.getenv("NVCC_FLAGS", "")
        if nvcc_flags == "":
            nvcc_flags = []
        else:
            nvcc_flags = nvcc_flags.split(" ")
        extra_compile_args["nvcc"] = nvcc_flags

    if sys.platform == "win32":
        define_macros += [("nestedtensor_EXPORTS", None)]

    this_dir = os.path.dirname(os.path.abspath(__file__))
    extensions_dir = os.path.join(this_dir, "nestedtensor", "csrc")
    utils_dir = os.path.join(extensions_dir, "utils")
    cuda_dir = os.path.join(this_dir, "nestedtensor", "csrc", "cuda")

    extension_sources = set(
        os.path.join(extensions_dir, p)
        for p in glob.glob(os.path.join(extensions_dir, "*.cpp"))
    )
    utils_sources = set(
        os.path.join(utils_dir, p) for p in glob.glob(os.path.join(utils_dir, "*.cpp"))
    )

    if (torch.cuda.is_available() and CUDA_HOME is not None) or os.getenv(
        "FORCE_CUDA", "0"
    ) == "1":
        cuda_sources = set(
            os.path.join(cuda_dir, p) for p in glob.glob(os.path.join(cuda_dir, "*.cu"))
        )
        cuda_cpp_sources = set(
            os.path.join(cuda_dir, p) for p in glob.glob(os.path.join(cuda_dir, "*.cpp"))
        )
        sources = list(set(extension_sources) | set(utils_sources) | set(cuda_sources) | set(cuda_cpp_sources))
    else:
        sources = list(set(extension_sources) | set(utils_sources))

    include_dirs = [extensions_dir, utils_dir]

    ext_modules = [
        extension(
            "nestedtensor._C",
            sources,
            include_dirs=[this_dir],
            define_macros=define_macros,
            extra_compile_args=extra_compile_args,
            extra_link_args=extra_link_args,
        )
    ]

    return ext_modules