class Chef
  class Resource
    class RubyBlock < Chef::Resource
      def initialize(name, collection=nil, node=nil)
        super(name, collection, node)
        @resource_name = :ruby_block
        @action = :create
        @allowed_actions.push(:create)
      end
 
      def block(&block)
        if block
          @block = block
        else
          @block
        end
      end
    end
  end
end


class Chef
  class Provider
    class RubyBlock < Chef::Provider
      def load_current_resource
        Chef::Log.debug(@new_resource.inspect)
        true
      end
 
      def action_create
        @new_resource.block.call
      end
    end
  end
end

Chef::Platform.platforms[:default].merge! :ruby_block => Chef::Provider::RubyBlock