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#
# Copyright (C) 2020 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>
#
from contextlib import suppress
from typing import TYPE_CHECKING
from ._project import Project
from ._context import Context
from ._loader import Loader
if TYPE_CHECKING:
from typing import Dict
# ArtifactProject()
#
# A project instance to be used as the project for an ArtifactElement.
#
# This is basically a simplified Project implementation which ensures that
# we do not accidentally infer any data from a possibly present local project
# when processing an ArtifactElement.
#
# Args:
# project_name: The name of this project
#
class ArtifactProject(Project):
__loaded_artifact_projects = {} # type: Dict[str, ArtifactProject]
def __init__(self, project_name: str, context: Context):
#
# Chain up to the Project constructor, and allow it to initialize
# without loading anything
#
super().__init__(None, context, search_for_project=False)
# Fill in some necessities
#
self.name = project_name
self.element_path = "" # This needs to be set to avoid Loader crashes
self.loader = Loader(self)
# get_artifact_project():
#
# Gets a reference to an ArtifactProject for the given
# project name, possibly instantiating one if needed.
#
# Args:
# project_name: The project name
# context: The Context
#
# Returns:
# An ArtifactProject with the given project_name
#
@classmethod
def get_artifact_project(cls, project_name: str, context: Context) -> "ArtifactProject":
with suppress(KeyError):
return cls.__loaded_artifact_projects[project_name]
project = cls(project_name, context)
cls.__loaded_artifact_projects[project_name] = project
return project
# clear_project_cache():
#
# Clears the cache of loaded projects, this can be called directly
# after completing a full load.
#
@classmethod
def clear_project_cache(cls):
cls.__loaded_artifact_projects = {}
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