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Path: /opt/chef/embedded/lib/ruby/gems/2.7.0/gems/chef-16.3.45/lib/chef/resource/

Viewing File: dsc_resource.rb

#
# Author:: Adam Edwards (<adamed@chef.io>)
#
# Copyright:: Copyright (c) Chef Software Inc.
#
# 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_relative "../dsl/powershell"
require_relative "../dist"

class Chef
  class Resource
    class DscResource < Chef::Resource
      unified_mode true

      provides :dsc_resource

      description "The dsc_resource resource allows any DSC resource to be used in a recipe, as well as any custom resources that have been added to your Windows PowerShell environment. Microsoft frequently adds new resources to the DSC resource collection."
      introduced "12.2"

      # This class will check if the object responds to
      # to_text. If it does, it will call that as opposed
      # to inspect. This is useful for properties that hold
      # objects such as PsCredential, where we do not want
      # to dump the actual ivars
      class ToTextHash < Hash
        def to_text
          descriptions = map do |(property, obj)|
            obj_text = if obj.respond_to?(:to_text)
                         obj.to_text
                       else
                         obj.inspect
                       end
            "#{property}=>#{obj_text}"
          end
          "{#{descriptions.join(", ")}}"
        end
      end

      include Chef::DSL::Powershell

      default_action :run

      def initialize(name, run_context)
        super
        @properties = ToTextHash.new
        @resource = nil
      end

      def resource(value = nil)
        if value
          @resource = value
        else
          @resource
        end
      end

      def module_name(value = nil)
        if value
          @module_name = value
        else
          @module_name
        end
      end

      property :module_version, String,
        introduced: "12.21",
        description: "The version number of the module to use. PowerShell 5.0.10018.0 (or higher) supports having multiple versions of a module installed. This should be specified along with the module_name."

      def property(property_name, value = nil)
        unless property_name.is_a?(Symbol)
          raise TypeError, "A property name of type Symbol must be specified, '#{property_name}' of type #{property_name.class} was given"
        end

        if value.nil?
          value_of(@properties[property_name])
        else
          @properties[property_name] = value
        end
      end

      def properties
        @properties.reduce({}) do |memo, (k, v)|
          memo[k] = value_of(v)
          memo
        end
      end

      # This property takes the action message for the reboot resource
      # If the set method of the DSC resource indicate that a reboot
      # is necessary, reboot_action provides the mechanism for a reboot to
      # be requested.
      property :reboot_action, Symbol, default: :nothing, equal_to: %i{nothing reboot_now request_reboot},
        introduced: "12.6",
        description: "Use to request an immediate reboot or to queue a reboot using the :reboot_now (immediate reboot) or :request_reboot (queued reboot) actions built into the reboot resource."

      property :timeout, Integer,
        introduced: "12.6",
        description: "The amount of time (in seconds) a command is to wait before timing out.",
        desired_state: false

      private

      def value_of(value)
        if value.is_a?(DelayedEvaluator)
          value.call
        else
          value
        end
      end
    end
  end
end