def setup()

in scripts/setup.py [0:0]

• 47 lines of code
• 5 McCabe index (conditional complexity)

def setup(runner_type: Type[Setup]) -> None:
    logging.basicConfig(
        level=logging.INFO, format="[%(asctime)s] [%(levelname)s] %(message)s"
    )

    parser = argparse.ArgumentParser(description="Set up Pyre.")

    parser.add_argument("--pyre-directory", type=Path)

    parser.add_argument("--local", action="store_true")
    parser.add_argument("--temporary_root", action="store_true")
    parser.add_argument("--opam-root", type=Path)
    parser.add_argument("--configure", action="store_true")
    parser.add_argument("--environment-only", action="store_true")
    parser.add_argument("--development", action="store_true")
    parser.add_argument("--release", action="store_true")
    parser.add_argument("--build-type", type=BuildType)
    parser.add_argument("--no-tests", action="store_true")

    parsed = parser.parse_args()

    pyre_directory = parsed.pyre_directory
    if not pyre_directory:
        pyre_directory = Path(__file__).parent.parent.absolute()

    opam_root = _make_opam_root(parsed.local, parsed.temporary_root, parsed.opam_root)

    runner = runner_type(
        opam_root=opam_root, development=parsed.development, release=parsed.release
    )
    if parsed.configure:
        runner.produce_dune_file(pyre_directory, parsed.build_type)
        compiler_override = runner.compiler_override
        if compiler_override:
            runner.run(
                [
                    "opam",
                    "switch",
                    "set",
                    compiler_override,
                    "--root",
                    runner.opam_root.as_posix(),
                ]
            )
    elif parsed.environment_only:
        runner.produce_dune_file(pyre_directory, parsed.build_type)
        runner.initialize_opam_switch()
        LOG.info("Environment built successfully, stopping here as requested.")
    else:
        runner.full_setup(
            pyre_directory,
            run_tests=not parsed.no_tests,
            build_type_override=parsed.build_type,
        )