INNER CODE UNIT · Python

resolve_source

PKU-EMBL/BASALT · BASALT_setup_China_mainland.py:118

def resolve_source(args: argparse.Namespace) -> Path:
    """Use an existing checkout when possible, otherwise clone BASALT."""
    if args.source_dir:
        source = Path(args.source_dir).expanduser().resolve()
        if not is_basalt_source(source):
            raise InstallationError(
                "--source-dir is not a BASALT checkout: {}".format(source)
            )
        return source

    candidates = [Path(__file__).resolve().parent, Path.cwd().resolve()]
    for candidate in candidates:
        if is_basalt_source(candidate):
            print("Using existing BASALT source: {}".format(candidate))
            return candidate

    destination = Path(args.install_root).expanduser().resolve() / "BASALT"
    if destination.exists():

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