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"""Base class for all actions of remote client."""
import abc
from functools import lru_cache
import podman
class AbstractActionBase(abc.ABC):
"""Base class for all actions of remote client."""
@classmethod
@abc.abstractmethod
def subparser(cls, parser):
"""Define parser for this action. Subclasses must implement.
API:
Use set_defaults() to set attributes "class_" and "method". These will
be invoked as class_(parsed_args).method()
"""
parser.add_argument(
'--all',
action='store_true',
help=('list all items.'
' (default: no-op, included for compatibility.)'))
parser.add_argument(
'--no-trunc',
'--notruncate',
action='store_false',
dest='truncate',
default=True,
help='Display extended information. (default: False)')
parser.add_argument(
'--noheading',
action='store_false',
dest='heading',
default=True,
help=('Omit the table headings from the output.'
' (default: False)'))
parser.add_argument(
'--quiet',
action='store_true',
help='List only the IDs. (default: %(default)s)')
def __init__(self, args):
"""Construct class."""
self._args = args
@property
def remote_uri(self):
"""URI for remote side of connection."""
return self._args.remote_uri
@property
def local_uri(self):
"""URI for local side of connection."""
return self._args.local_uri
@property
def identity_file(self):
"""Key for authenication."""
return self._args.identity_file
@property
@lru_cache(maxsize=1)
def client(self):
"""Podman remote client for communicating."""
if self._args.host is None:
return podman.Client(
uri=self.local_uri)
else:
return podman.Client(
uri=self.local_uri,
remote_uri=self.remote_uri,
identity_file=self.identity_file)
def __repr__(self):
"""Compute the “official” string representation of object."""
return ("{}(local_uri='{}', remote_uri='{}',"
" identity_file='{}')").format(
self.__class__,
self.local_uri,
self.remote_uri,
self.identity_file,
)
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