pip.py

from pathlib import Path
from typing import Tuple

from nepattern import URL

from arclet.alconna import Alconna, Args, Option, Subcommand, count, store_true

pip = Alconna(
    "/pip",
    Subcommand(
        "install",
        Args.requirements(str, multiple="*"),
        Option("-r|--requirement", Args.rfile(Path)),
        Option("-c|--constraint", Args.cfile(Path)),
        Option("--no-deps", default=False, action=store_true),
        Option("--pre", default=False, action=store_true),
        Option("-e|--editable", Args.path_or_url([URL, Path])),
        Option("--dry-run"),
        Option("-t|--target", Args.dir(Path)),
        Option("--platform", Args.plat(str)),
        Option("--python-version", Args.python_version(str)),
        Option("--implementation", Args.impl(["pp", "jy", "cp", "ip", "py"])),
        Option("--abi", Args.abi(str)),
        Option("-U|--upgrade", default=False, action=store_true),
        Option("--force-reinstall", default=False, action=store_true),
        Option("-i|--index-url", Args.url(URL))
        # and more ....
    ),
    Subcommand("download"),
    Subcommand("uninstall"),
    Subcommand("freeze"),
    Subcommand("inspect"),
    Subcommand("list"),
    Subcommand("show"),
    Subcommand("check"),
    Subcommand("config"),
    Subcommand("search"),
    Subcommand("cache"),
    Subcommand("wheel"),
    Subcommand("hash"),
    Subcommand("completion"),
    Subcommand("debug"),
    Subcommand("help"),
    Option("--debug", default=False, action=store_true),
    Option("--isolated", default=False, action=store_true),
    Option("--require-virtualenv", default=False, action=store_true),
    Option("--python", Args.python(str)),
    Option("-v|--verbose", action=count, default=0),
    Option("-V|--version"),
    Option("-q|--quiet", default=False, action=store_true),
    Option("--log", Args.log_path(Path)),
    Option("--no-input", default=False, action=store_true),
    Option("--proxy", Args.proxy(str)),
    Option("--retries", Args.count(int)),
    Option("--timeout", Args.sec(float)),
    Option("--exists-action", Args.action(["s", "i", "w", "b", "a"])),
    Option("--trusted-host", Args.hostname(str)),
    Option("--cert", Args.cert_path(Path)),
    Option("--client-cert", Args.client_path(Path)),
    Option("--cache-dir", Args.dir(Path)),
    Option("--no-cache-dir", default=False, action=store_true),
    Option("--disable-pip-version-check", default=False, action=store_true),
    Option("no-color", default=False, action=store_true),
    Option("no-python-version-warning", default=False, action=store_true),
    Option("--use-feature", Args.feature(str, multiple=True)),
    Option("--use-deprecated", Args.feature(str, multiple=True)),
)

res = pip.parse("/pip install arclet-alconna -U -vvv")
print(res.query[bool]("install.upgrade.value"))
print(res.query[Tuple[str, ...]]("install.args.requirements"))
print(res.query[int]("verbose.value"))