def main()

in fastchat/serve/cli.py [0:0]
69 lines of code
12 McCabe index (conditional complexity)

def main(args):
    if args.gpus:
        if len(args.gpus.split(",")) < args.num_gpus:
            raise ValueError(
                f"Larger --num-gpus ({args.num_gpus}) than --gpus {args.gpus}!"
            )
        os.environ["CUDA_VISIBLE_DEVICES"] = args.gpus
        os.environ["XPU_VISIBLE_DEVICES"] = args.gpus
    if args.enable_exllama:
        exllama_config = ExllamaConfig(
            max_seq_len=args.exllama_max_seq_len,
            gpu_split=args.exllama_gpu_split,
            cache_8bit=args.exllama_cache_8bit,
        )
    else:
        exllama_config = None
    if args.enable_xft:
        xft_config = XftConfig(
            max_seq_len=args.xft_max_seq_len,
            data_type=args.xft_dtype,
        )
        if args.device != "cpu":
            print("xFasterTransformer now is only support CPUs. Reset device to CPU")
            args.device = "cpu"
    else:
        xft_config = None
    if args.style == "simple":
        chatio = SimpleChatIO(args.multiline)
    elif args.style == "rich":
        chatio = RichChatIO(args.multiline, args.mouse)
    elif args.style == "programmatic":
        chatio = ProgrammaticChatIO()
    else:
        raise ValueError(f"Invalid style for console: {args.style}")
    try:
        chat_loop(
            args.model_path,
            args.device,
            args.num_gpus,
            args.max_gpu_memory,
            str_to_torch_dtype(args.dtype),
            args.load_8bit,
            args.cpu_offloading,
            args.conv_template,
            args.conv_system_msg,
            args.temperature,
            args.repetition_penalty,
            args.max_new_tokens,
            chatio,
            gptq_config=GptqConfig(
                ckpt=args.gptq_ckpt or args.model_path,
                wbits=args.gptq_wbits,
                groupsize=args.gptq_groupsize,
                act_order=args.gptq_act_order,
            ),
            awq_config=AWQConfig(
                ckpt=args.awq_ckpt or args.model_path,
                wbits=args.awq_wbits,
                groupsize=args.awq_groupsize,
            ),
            exllama_config=exllama_config,
            xft_config=xft_config,
            revision=args.revision,
            judge_sent_end=args.judge_sent_end,
            debug=args.debug,
            history=not args.no_history,
        )
    except KeyboardInterrupt:
        print("exit...")