Refactor with Forwardable module

lib/producer/core/env.rb

@@ -1,6 +1,9 @@
 module Producer
   module Core
     class Env
+      extend Forwardable
+      def_delegators :@registry, :[]=
+
       attr_reader   :input, :output, :error_output, :registry, :logger
       attr_accessor :target, :verbose, :debug, :dry_run
 
@@ -24,10 +27,6 @@ module Producer
       end
       alias get []
 
-      def []=(key, value)
-        @registry[key] = value
-      end
-
       def logger
         @logger ||= begin
           logger = Logger.new(output)

lib/producer/core/recipe.rb

@@ -19,6 +19,9 @@ module Producer
         end
       end
 
+      extend Forwardable
+      def_delegator :@env, :[]=,  :set
+      def_delegator :@env, :[],   :get
       attr_reader :env, :tasks
 
       def initialize(env)
@@ -49,14 +52,6 @@ module Producer
       def test_macro(name, &block)
         Condition.define_test(name, block)
       end
-
-      def set(key, value)
-        env[key] = value
-      end
-
-      def get(key)
-        env[key]
-      end
     end
   end
 end

lib/producer/core/task.rb

@@ -14,7 +14,9 @@ module Producer
       end
 
       extend Forwardable
+      def_delegators  :@name, :to_s
       def_delegators  :@env,  :target
+      def_delegator   :@env,  :[], :get
 
       define_action :echo,                  Actions::Echo
       define_action :sh,                    Actions::ShellCommand
@@ -34,10 +36,6 @@ module Producer
         @condition  = condition
       end
 
-      def to_s
-        @name.to_s
-      end
-
       def condition_met?
         !!@condition
       end
@@ -55,10 +53,6 @@ module Producer
         prompter.prompt(question, choices)
       end
 
-      def get(key)
-        @env[key]
-      end
-
       def template(path, variables = {})
         Template.new(path).render variables
       end

lib/producer/core/tests/condition_test.rb

@@ -2,9 +2,9 @@ module Producer
   module Core
     module Tests
       class ConditionTest < Test
-        def verify
-          condition.met?
-        end
+        extend Forwardable
+        def_delegator :@arguments,  :first,  :condition_block
+        def_delegator :condition,   :met?,   :verify
 
         def condition
           Condition.evaluate(env, *condition_args, &condition_block)
@@ -13,10 +13,6 @@ module Producer
         def condition_args
           arguments.drop 1
         end
-
-        def condition_block
-          arguments.first
-        end
       end
     end
   end

lib/producer/core/tests/shell_command_status.rb

@@ -2,16 +2,15 @@ module Producer
   module Core
     module Tests
       class ShellCommandStatus < Test
+        extend Forwardable
+        def_delegator :@arguments, :first, :command
+
         def verify
           remote.execute(command)
           true
         rescue RemoteCommandExecutionError
           false
         end
-
-        def command
-          arguments.first
-        end
       end
     end
   end