/usr/lib/python3/dist-packages/plainbox/impl/commands/list.py is in python3-plainbox 0.5.3-2.
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#
# Copyright 2013 Canonical Ltd.
# Written by:
# Zygmunt Krynicki <zygmunt.krynicki@canonical.com>
#
# Checkbox is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3,
# as published by the Free Software Foundation.
#
# Checkbox is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Checkbox. If not, see <http://www.gnu.org/licenses/>.
"""
:mod:`plainbox.impl.commands.list` -- list sub-command
======================================================
"""
import logging
from plainbox.i18n import gettext as _
from plainbox.impl.commands import PlainBoxCommand
from plainbox.impl.highlevel import Explorer
logger = logging.getLogger("plainbox.commands.list")
class ListInvocation:
def __init__(self, provider_list, ns):
self.explorer = Explorer(provider_list)
self.group = ns.group
self.show_attrs = ns.attrs
def run(self):
obj = self.explorer.get_object_tree()
self._show(obj)
def _show(self, obj, indent=None):
if indent is None:
indent = ""
# Apply optional filtering
if self.group is None or obj.group == self.group:
# Display the object name and group
print("{}{} {!r}".format(indent, obj.group, obj.name))
indent += " "
# It would be cool if this would draw an ASCI-art tree
if self.show_attrs:
for key, value in obj.attrs.items():
print("{}{}: {!r}".format(indent, key, value))
if obj.children:
if self.group is None:
print("{}{}".format(indent, _("children")))
indent += " "
for child in obj.children:
self._show(child, indent)
class ListCommand(PlainBoxCommand):
"""
Implementation of ``$ plainbox dev list <object>``
"""
def __init__(self, provider_list):
self.provider_list = provider_list
def invoked(self, ns):
self.autopager()
return ListInvocation(self.provider_list, ns).run()
def register_parser(self, subparsers):
parser = subparsers.add_parser(
"list", help=_("list and describe various objects"))
parser.add_argument(
'-a', '--attrs', default=False, action="store_true",
help=_("show object attributes"))
parser.add_argument(
'group', nargs='?',
help=_("list objects from the specified group"))
parser.set_defaults(command=self)
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