Jan Lindemann
3e897f4df8
The code below lib.distro, as left behind by the previous commit, is geared towards being directly used as a command-line API. This commit introduces the abstract base class Distro, a proxy for distribution-specific interactions. The proxy abstracts distro specifics into an API with proper method prototypes, not argparse.Namespace contents, and can thus be more easily driven by arbitrary code.
The Distro class is initialized with a member variable of type ExecContext, another new class introduced by this commit. It is designed to abstract the communication channel to the distribution instance. Currently only one specialization exists, Local, which interacts with the distribution and root file system it is running in, but is planned to be subclassed to support interaction via SSH, serial, chroot, or chains thereof.
Signed-off-by: Jan Lindemann <jan@janware.com>
19 lines
779 B
Python
# -*- coding: utf-8 -*-
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from argparse import Namespace, ArgumentParser
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from .Cmd import Cmd
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from ..CmdDistro import CmdDistro
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class CmdInstall(Cmd): # export
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def __init__(self, parent: CmdDistro) -> None:
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super().__init__(parent, 'install', help="Install the distribution's notion of available packages")
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def add_arguments(self, parser: ArgumentParser) -> None:
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super().add_arguments(parser)
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parser.add_argument("names", nargs="*", help="Packages to be installed")
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parser.add_argument('--only-update', default=False, action='store_true', help='Only update the listed packages, don\'t install them')
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async def _run(self, args: Namespace) -> None:
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return await self.distro.install(args.names, only_update=args.only_update)
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