home *** CD-ROM | disk | FTP | other *** search
- #
- # 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
-