script5.py

#!/usr/bin/env python3


from clak import Argument, Command, Parser


# Base action class for reusability
class AppSubAction(Parser):
    "Default action to illustrate subcommand reusability"

    def cli_run(self, args, **_):
        print(f"Command called with args: {args}")


# Level 3 commands
class SubSubCommand2a(AppSubAction):
    "SubSubCommand2a"
    args = Argument("ARGS", nargs="+", help="One or more arguments")


class SubSubCommand2b(Parser):
    "SubSubCommand2b"
    args = Argument("ARGS", nargs="*", help="Zero or more arguments")


# Level 2 commands
class SubCommand1(AppSubAction):
    "SubCommand1"
    args = Argument("ARGS", nargs="*", help="Zero or more arguments")


class SubCommand2(AppSubAction):
    "SubCommand2"
    sub2a = Command(SubSubCommand2a)
    sub2b = Command(SubSubCommand2b)


class AppMain(Parser):
    """Demo application with deep nested commands"""

    debug = Argument("--debug", action="store_true", help="Enable debug mode")
    config = Argument("--config", "-c", help="Config file path", default="config.yaml")

    sub1 = Command(SubCommand1)
    sub2 = Command(SubCommand2)


if __name__ == "__main__":
    AppMain()