def copy_or_generate_nanoarrow_c()

in python/bootstrap.py [0:0]

• 41 lines of code
• 11 McCabe index (conditional complexity)

def copy_or_generate_nanoarrow_c():
    this_wd = os.getcwd()
    this_dir = os.path.abspath(os.path.dirname(__file__))
    source_dir = os.path.dirname(this_dir)

    maybe_nanoarrow_h = os.path.join(this_dir, "src/nanoarrow/nanoarrow.h")
    maybe_nanoarrow_c = os.path.join(this_dir, "src/nanoarrow/nanoarrow.c")
    for f in (maybe_nanoarrow_c, maybe_nanoarrow_h):
        if os.path.exists(f):
            os.unlink(f)

    is_cmake_dir = "CMakeLists.txt" in os.listdir(source_dir)
    is_in_nanoarrow_repo = "nanoarrow.h" in os.listdir(
        os.path.join(source_dir, "src", "nanoarrow")
    )
    has_cmake = os.system("cmake --version") == 0
    build_dir = os.path.join(this_dir, "_cmake")

    if has_cmake and is_cmake_dir and is_in_nanoarrow_repo:
        try:
            os.mkdir(build_dir)
            os.chdir(build_dir)
            os.system(
                "cmake ../.. -DNANOARROW_BUNDLE=ON -DNANOARROW_NAMESPACE=PythonPkg"
            )
            os.system("cmake --install . --prefix=../src/nanoarrow")
        finally:
            if os.path.exists(build_dir):
                # Can fail on Windows with permission issues
                try:
                    shutil.rmtree(build_dir)
                except Exception as e:
                    print(f"Failed to remove _cmake temp directory: {str(e)}")
            os.chdir(this_wd)

    elif is_in_nanoarrow_repo:
        shutil.copyfile()
    else:
        raise ValueError(
            "Attempt to build source distribution outside the nanoarrow repo"
        )

    if not os.path.exists(os.path.join(this_dir, "src/nanoarrow/nanoarrow.h")):
        raise ValueError("Attempt to vendor nanoarrow.c/h failed")

    maybe_nanoarrow_hpp = os.path.join(this_dir, "src/nanoarrow/nanoarrow.hpp")
    if os.path.exists(maybe_nanoarrow_hpp):
        os.unlink(maybe_nanoarrow_hpp)