a32f34b408
Knife-Zero doesn't include Berkshelf support, so vendoring everything in the repo is convenient again
76 lines
2.1 KiB
Ruby
76 lines
2.1 KiB
Ruby
#
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# Copyright 2013-2016, Noah Kantrowitz
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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require 'chef/resource_collection'
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module Poise
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module Subcontext
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# A subclass of the normal Chef ResourceCollection that creates a partially
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# isolated set of resources. Notifications and other resources lookups can
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# propagate out to parent contexts but not back in. This is used to allow
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# black-box resources that are still aware of things in upper contexts.
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#
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# @api private
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# @since 1.0.0
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class ResourceCollection < Chef::ResourceCollection
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attr_accessor :parent
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def initialize(parent)
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@parent = parent
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super()
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end
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def lookup(resource)
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super
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rescue Chef::Exceptions::ResourceNotFound
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@parent.lookup(resource)
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end
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# Iterate over all resources, expanding parent context in order.
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#
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# @param block [Proc] Iteration block
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# @return [void]
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def recursive_each(&block)
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if @parent
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if @parent.respond_to?(:recursive_each)
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@parent.recursive_each(&block)
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else
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@parent.each(&block)
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end
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end
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each(&block)
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end
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# Iterate over all resources in reverse order.
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#
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# @since 2.3.0
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# @param block [Proc] Iteration block
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# @return [void]
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def reverse_recursive_each(&block)
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reverse_each(&block)
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if @parent
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if @parent.respond_to?(:recursive_each)
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@parent.reverse_recursive_each(&block)
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else
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@parent.reverse_each(&block)
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end
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end
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end
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end
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end
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end
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