diff options
Diffstat (limited to 'src/buildstream/_loader/loadelement.py')
| -rw-r--r-- | src/buildstream/_loader/loadelement.py | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/src/buildstream/_loader/loadelement.py b/src/buildstream/_loader/loadelement.py deleted file mode 100644 index 773675e2b..000000000 --- a/src/buildstream/_loader/loadelement.py +++ /dev/null @@ -1,132 +0,0 @@ -# -# Copyright (C) 2016 Codethink Limited -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU Lesser General Public -# License as published by the Free Software Foundation; either -# version 2 of the License, or (at your option) any later version. -# -# This library 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 -# Lesser General Public License for more details. -# -# You should have received a copy of the GNU Lesser General Public -# License along with this library. If not, see <http://www.gnu.org/licenses/>. -# -# Authors: -# Tristan Van Berkom <tristan.vanberkom@codethink.co.uk> - -# System imports -from itertools import count - -from pyroaring import BitMap, FrozenBitMap # pylint: disable=no-name-in-module - - -# LoadElement(): -# -# A transient object breaking down what is loaded allowing us to -# do complex operations in multiple passes. -# -# Args: -# node (dict): A YAML loaded dictionary -# name (str): The element name -# loader (Loader): The Loader object for this element -# -class LoadElement(): - # Dependency(): - # - # A link from a LoadElement to its dependencies. - # - # Keeps a link to one of the current Element's dependencies, together with - # its dependency type. - # - # Args: - # element (LoadElement): a LoadElement on which there is a dependency - # dep_type (str): the type of dependency this dependency link is - class Dependency: - def __init__(self, element, dep_type): - self.element = element - self.dep_type = dep_type - - _counter = count() - - def __init__(self, node, filename, loader): - - # - # Public members - # - self.node = node # The YAML node - self.name = filename # The element name - self.full_name = None # The element full name (with associated junction) - self.meta_done = False # If the MetaElement for this LoadElement is done - self.node_id = next(self._counter) - - # - # Private members - # - self._loader = loader # The Loader object - self._dep_cache = None # The dependency cache, to speed up depends() - - # - # Initialization - # - if loader.project.junction: - # dependency is in subproject, qualify name - self.full_name = '{}:{}'.format(loader.project.junction.name, self.name) - else: - # dependency is in top-level project - self.full_name = self.name - - # Ensure the root node is valid - self.node.validate_keys([ - 'kind', 'depends', 'sources', 'sandbox', - 'variables', 'environment', 'environment-nocache', - 'config', 'public', 'description', - 'build-depends', 'runtime-depends', - ]) - - self.dependencies = [] - - @property - def junction(self): - return self._loader.project.junction - - # depends(): - # - # Checks if this element depends on another element, directly - # or indirectly. - # - # Args: - # other (LoadElement): Another LoadElement - # - # Returns: - # (bool): True if this LoadElement depends on 'other' - # - def depends(self, other): - self._ensure_depends_cache() - return other.node_id in self._dep_cache - - ########################################### - # Private Methods # - ########################################### - def _ensure_depends_cache(self): - - if self._dep_cache: - return - - self._dep_cache = BitMap() - - for dep in self.dependencies: - elt = dep.element - - # Ensure the cache of the element we depend on - elt._ensure_depends_cache() - - # We depend on this element - self._dep_cache.add(elt.node_id) - - # And we depend on everything this element depends on - self._dep_cache.update(elt._dep_cache) - - self._dep_cache = FrozenBitMap(self._dep_cache) |