def choose_tls_port_and_get_bind_sock()

in src/mount_efs/__init__.py [0:0]

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

def choose_tls_port_and_get_bind_sock(config, options, state_file_dir):
    if "tlsport" in options:
        ports_to_try = [int(options["tlsport"])]
    else:
        lower_bound, upper_bound = get_tls_port_range(config)

        ports_to_try = list(range(lower_bound, upper_bound))

        # shuffle the ports_to_try to reduce possibility of multiple mounts starting from same port range
        random.shuffle(ports_to_try)

    if "netns" not in options:
        tls_port_sock = find_tls_port_in_range_and_get_bind_sock(
            ports_to_try, state_file_dir
        )
    else:
        with NetNS(nspath=options["netns"]):
            tls_port_sock = find_tls_port_in_range_and_get_bind_sock(
                ports_to_try, state_file_dir
            )

    if tls_port_sock:
        return tls_port_sock

    if "tlsport" in options:
        fatal_error(
            "Specified port [%s] is unavailable. Try selecting a different port."
            % options["tlsport"]
        )
    else:
        fatal_error(
            "Failed to locate an available port in the range [%d, %d], try specifying a different port range in %s"
            % (lower_bound, upper_bound, CONFIG_FILE)
        )