Module: KnifeAttribute::Get

Included in:
Environment::EnvironmentAttributeGet, Node::NodeAttributeGet, Role::RoleAttributeGet
Defined in:
lib/knife-attribute/get.rb

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/knife-attribute/get.rb', line 3

def self.included(base)
  base.class_eval do
    include KnifeAttribute::CommonOptions

    def run
      check_arguments

      if config[:attribute_type]
        get_attribute(entity.send(attribute_type_map[config[:attribute_type].to_sym]))
      elsif entity.respond_to?(:construct_attributes)
        get_attribute(entity.construct_attributes)
      else
        get_attribute(entity.send(attribute_type_map[default_attribute_type]))
      end
    end

    private
      def check_arguments
        if entity_name.nil?
          show_usage
          ui.fatal("You must specify a #{entity_type.to_s} name")
          exit 1
        end

        if attribute.nil?
          show_usage
          ui.fatal('You must specify an attribute')
          exit 1
        end

        check_type
      end

      def get_attribute(target)
        result = ui.presenter.extract_nested_value(target, attribute)
        output(format_for_display(result))
      end
  end
end