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#
# Author:: John Keiser (<jkeiser@chef.io)
# Copyright:: Copyright (c) 2015 Opscode, 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.
#
require 'chef/exceptions'
class Chef
class Resource
module ActionProvider
#
# If load_current_value! is defined on the resource, use that.
#
def load_current_resource
if new_resource.respond_to?(:load_current_value!)
# dup the resource and then reset desired-state properties.
current_resource = new_resource.dup
# We clear desired state in the copy, because it is supposed to be actual state.
# We keep identity properties and non-desired-state, which are assumed to be
# "control" values like `recurse: true`
current_resource.class.properties.each do |name,property|
if property.desired_state? && !property.identity? && !property.name_property?
property.reset(current_resource)
end
end
# Call the actual load_current_value! method. If it raises
# CurrentValueDoesNotExist, set current_resource to `nil`.
begin
if current_resource.method(:load_current_value!).arity > 0
current_resource.load_current_value!(new_resource)
else
current_resource.load_current_value!
end
rescue Chef::Exceptions::CurrentValueDoesNotExist
current_resource = nil
end
end
@current_resource = current_resource
end
def self.included(other)
other.extend(ClassMethods)
other.use_inline_resources
other.include_resource_dsl true
end
module ClassMethods
end
end
end
end
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