definitions.py

from egoist.app import App, SettingsDict, parse_args

settings: SettingsDict = {"rootdir": "cmd/", "here": __file__}
app = App(settings)

app.include("egoist.commands.generate")
app.include("commands.now")
app.include("egoist.directives.define_cli")


@app.define_cli("egoist.generators.clikit:walk")
def hello(*, name: str) -> None:
    """hello message"""
    from egoist.generators.clikit import runtime, clikit

    with runtime.generate(clikit):
        runtime.printf("hello %s\n", name)


if __name__ == "__main__":
    for argv in parse_args(sep="-"):
        app.run(argv)

now.py

from __future__ import annotations
import typing as t
from functools import partial
from egoist.app import App
from egoist.types import AnyFunction

if t.TYPE_CHECKING:
    from argparse import ArgumentParser


def now(app: App, *, format: str,) -> None:
    from datetime import datetime

    now = datetime.now()
    print(now.strftime(format))


def setup(app: App, sub_parser: ArgumentParser, fn: AnyFunction) -> None:
    sub_parser.add_argument("--format", default="%Y-%m-%dT%H:%M:%S%z")
    sub_parser.set_defaults(subcommand=partial(fn, app))


def includeme(app: App) -> None:
    app.include("egoist.directives.add_subcommand")
    app.add_subcommand(setup, fn=now)

structure.txt

.
├── commands
│   ├── __pycache__
│   │   └── now.cpython-38.pyc
│   └── now.py
├── definitions.py
└── structure.txt

2 directories, 4 files