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#!/usr/bin/env python3
#
# 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>
from . import _site
from ._plugincontext import PluginContext
from .source import Source
# A SourceFactory creates Source instances
# in the context of a given factory
#
# Args:
# plugin_base (PluginBase): The main PluginBase object to work with
# searchpath (list): Search path for external Source plugins
#
class SourceFactory(PluginContext):
def __init__(self, plugin_base, searchpath=None):
if searchpath is None:
searchpath = []
searchpath.insert(0, _site.source_plugins)
super().__init__(plugin_base, Source, searchpath)
# create():
#
# Create a Source object, the pipeline uses this to create Source
# objects on demand for a given pipeline.
#
# Args:
# kind (str): The kind of Source to create
# context (object): The Context object for processing
# project (object): The project object
# meta (object): The loaded MetaSource
#
# Returns:
# A newly created Source object of the appropriate kind
#
# Raises:
# PluginError (if the kind lookup failed)
# LoadError (if the source itself took issue with the config)
#
def create(self, kind, context, project, meta):
source_type, _ = self.lookup(kind)
return source_type(context, project, meta)
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