Function _validate_arguments

Lib/profiling/sampling/_sync_coordinator.py:38–71

Validate and parse command line arguments. Args: args: Command line arguments including script name Returns: Tuple of (sync_port, working_directory, target_args) Raises: ArgumentError: If arguments are invalid

(args: List[str])

def _validate_arguments(args: List[str]) -> tuple[int, str, List[str]]:
    """
    Validate and parse command line arguments.

    Args:
        args: Command line arguments including script name

    Returns:
        Tuple of (sync_port, working_directory, target_args)

    Raises:
        ArgumentError: If arguments are invalid
    """
    if len(args) < 4:
        raise ArgumentError(
            "Insufficient arguments. Expected: <sync_port> <cwd> <target> [args...]"
        )

    try:
        sync_port = int(args[1])
        if not (1 <= sync_port <= 65535):
            raise ValueError("Port out of range")
    except ValueError as e:
        raise ArgumentError(f"Invalid sync port '{args[1]}': {e}") from e

    cwd = args[2]
    if not os.path.isdir(cwd):
        raise ArgumentError(f"Working directory does not exist: {cwd}")

    target_args = args[3:]
    if not target_args:
        raise ArgumentError("No target specified")

    return sync_port, cwd, target_args


# Constants for socket communication