a32f34b408
Knife-Zero doesn't include Berkshelf support, so vendoring everything in the repo is convenient again
73 lines
2.6 KiB
Ruby
73 lines
2.6 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 'poise/subcontext/resource_collection'
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module Poise
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module Helpers
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# A provider mixin to help with creating subcontexts. Mostly for internal
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# use within Poise.
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#
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# @since 1.0.0
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module SubcontextBlock
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private
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def subcontext_block(parent_context=nil, &block)
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# Setup a subcontext.
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parent_context ||= @run_context
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sub_run_context = parent_context.dup
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# Reset state for the subcontext. In 12.4+ this uses the built-in
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# support, otherwise do it manually.
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if defined?(sub_run_context.initialize_child_state)
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sub_run_context.initialize_child_state
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else
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# Audits was added in 12.1 I think.
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sub_run_context.audits = {} if defined?(sub_run_context.audits)
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# Dup and clear to preserve the default behavior without copy-pasta.
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sub_run_context.immediate_notification_collection = parent_context.immediate_notification_collection.dup.clear
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sub_run_context.delayed_notification_collection = parent_context.delayed_notification_collection.dup.clear
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end
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# Create the subcollection.
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sub_run_context.resource_collection = Poise::Subcontext::ResourceCollection.new(parent_context.resource_collection)
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# Create an accessor for the parent run context.
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sub_run_context.define_singleton_method(:parent_run_context) { parent_context }
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# Declare sub-resources within the sub-run-context. Since they
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# are declared here, they do not pollute the parent run-context.
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begin
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outer_run_context = @run_context
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@run_context = sub_run_context
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instance_eval(&block)
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ensure
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@run_context = outer_run_context
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end
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# Return the inner context to do other things with
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sub_run_context
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end
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def global_resource_collection
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collection = @run_context.resource_collection
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while collection.respond_to?(:parent) && collection.parent
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collection = collection.parent
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end
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collection
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end
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end
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end
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end
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