Class Application

src/poetry/console/application.py:124–638

class Application(BaseApplication):
    def __init__(self) -> None:
        super().__init__("poetry", __version__)

        self._poetry: Poetry | None = None
        self._io: IO | None = None
        self._disable_plugins = False
        self._disable_cache = False
        self._plugins_loaded = False
        self._working_directory = Path.cwd()
        self._project_directory: Path | None = None

        dispatcher = EventDispatcher()
        dispatcher.add_listener(COMMAND, self.register_command_loggers)
        dispatcher.add_listener(COMMAND, self.configure_env)
        dispatcher.add_listener(COMMAND, self.configure_installer_for_event)
        self.set_event_dispatcher(dispatcher)

        command_loader = CommandLoader({name: load_command(name) for name in COMMANDS})
        self.set_command_loader(command_loader)

    @property
    def _default_definition(self) -> Definition:
        from cleo.io.inputs.option import Option

        definition = super()._default_definition

        definition.add_option(
            Option("--no-plugins", flag=True, description="Disables plugins.")
        )

        definition.add_option(
            Option(
                "--no-cache", flag=True, description="Disables Poetry source caches."
            )
        )

        definition.add_option(
            Option(
                "--project",
                "-P",
                flag=False,
                description=(
                    "Specify another path as the project root."
                    " All command-line arguments will be resolved relative to the current working directory."
                ),
            )
        )

        definition.add_option(
            Option(
                "--directory",
                "-C",
                flag=False,
                description=(
                    "The working directory for the Poetry command (defaults to the"
                    " current working directory). All command-line arguments will be"
                    " resolved relative to the given directory."