def tpu_command_launcher()

in src/accelerate/commands/tpu.py [0:0]

• 51 lines of code
• 24 McCabe index (conditional complexity)

def tpu_command_launcher(args):
    defaults = None

    # Get the default from the config file if it exists.
    if args.config_file is not None or os.path.isfile(default_config_file):
        defaults = load_config_from_file(args.config_file)
        if not args.command_file and defaults.command_file is not None and not args.command:
            args.command_file = defaults.command_file
        if not args.command and defaults.commands is not None:
            args.command = defaults.commands
        if not args.tpu_name:
            args.tpu_name = defaults.tpu_name
        if not args.tpu_zone:
            args.tpu_zone = defaults.tpu_zone
    if args.accelerate_version == "dev":
        args.accelerate_version = "git+https://github.com/huggingface/accelerate.git"
    elif args.accelerate_version == "latest":
        args.accelerate_version = "accelerate -U"
    elif isinstance(parse(args.accelerate_version), Version):
        args.accelerate_version = f"accelerate=={args.accelerate_version}"

    if not args.command_file and not args.command:
        raise ValueError("You must specify either a command file or a command to run on the pod.")

    if args.command_file:
        with open(args.command_file) as f:
            args.command = [f.read().splitlines()]

    # To turn list of lists into list of strings
    if isinstance(args.command[0], list):
        args.command = [line for cmd in args.command for line in cmd]
    # Default to the shared folder and install accelerate
    new_cmd = ["cd /usr/share"]
    if args.install_accelerate:
        new_cmd += [f"pip install {args.accelerate_version}"]
    new_cmd += args.command
    args.command = "; ".join(new_cmd)

    # Then send it to gcloud
    # Eventually try to use google-api-core to do this instead of subprocess
    cmd = ["gcloud"]
    if args.use_alpha:
        cmd += ["alpha"]
    cmd += [
        "compute",
        "tpus",
        "tpu-vm",
        "ssh",
        args.tpu_name,
        "--zone",
        args.tpu_zone,
        "--command",
        args.command,
        "--worker",
        "all",
    ]
    if args.debug:
        print(f"Running {' '.join(cmd)}")
        return
    subprocess.run(cmd)
    print("Successfully setup pod.")