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#
# This file is part of Checkbox.
#
# Copyright 2008 Canonical Ltd.
#
# Checkbox is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# 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/>.
#
from checkbox.lib.cache import cache
from checkbox.registry import registry_eval_recursive
class Requires(object):
def __init__(self, registry, source):
self._registry = registry
self._source = source
self._mask = [False]
def __str__(self):
return self.get_source() or ""
@cache
def get_values(self):
if self._source is None:
self._mask = [True]
return []
return registry_eval_recursive(self._registry,
self._source, self._mask)
def get_packages(self):
packages = []
values = self.get_values()
for value in values:
if value.__class__.__name__ == "PackageRegistry":
packages.append(value)
return packages
def get_devices(self):
devices = []
values = self.get_values()
for value in values:
if value.__class__.__name__ == "DeviceRegistry":
devices.append(value)
return devices
def get_source(self):
return self._source
def get_mask(self):
self.get_values()
return self._mask
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