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# Author:: Christopher Walters (<cw@chef.io>)
# Author:: Tim Hinderliter (<tim@chef.io>)
# Copyright:: Copyright (c) Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
class Chef
class Cookbook
# == Chef::Cookbook::FileVendor
# This class handles fetching of cookbook files based on specificity.
class FileVendor
@vendor_class = nil
@initialization_options = nil
# Configures FileVendor to use the RemoteFileVendor implementation. After
# calling this, subsequent calls to create_from_manifest will return a
# RemoteFileVendor object initialized with the given http_client
def self.fetch_from_remote(http_client)
@vendor_class = RemoteFileVendor
@initialization_options = http_client
end
def self.fetch_from_disk(cookbook_paths)
@vendor_class = FileSystemFileVendor
@initialization_options = cookbook_paths
end
# Returns the implementation class that is currently configured, or `nil`
# if one has not been configured yet.
def self.vendor_class
@vendor_class
end
def self.initialization_options
@initialization_options
end
# Factory method that creates the appropriate kind of
# Cookbook::FileVendor to serve the contents of the manifest
def self.create_from_manifest(manifest)
if @vendor_class.nil?
raise "Must configure FileVendor to use a specific implementation before creating an instance"
end
@vendor_class.new(manifest, @initialization_options)
end
# Gets the on-disk location for the given cookbook file.
#
# Subclasses are responsible for determining exactly how the
# files are obtained and where they are stored.
def get_filename(filename)
raise NotImplemented, "Subclasses must implement this method"
end
end
end
end
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