Actions can now implement the #cleanup method which is called after all other actions have finished executing.

lib/vagrant/actions/base.rb

@@ -47,6 +47,11 @@ module Vagrant
         # @vm.invoke_callback(:after_oven, "more", "than", "one", "option")
       end
 
+      # This method is called after all actions have finished executing.
+      # It is meant as a place where final cleanup code can be done, knowing
+      # that all other actions are finished using your data.
+      def cleanup; end
+
       # This method is only called if some exception occurs in the chain
       # of actions. If an exception is raised in any action in the current
       # chain, then every action part of that chain has {#rescue} called

lib/vagrant/actions/runner.rb

@@ -41,7 +41,7 @@ module Vagrant
         # Call the prepare method on each once its
         # initialized, then call the execute! method
         begin
-          [:prepare, :execute!].each do |method|
+          [:prepare, :execute!, :cleanup].each do |method|
             actions.each do |action|
               action.send(method)
             end

test/vagrant/actions/runner_test.rb

@@ -5,6 +5,7 @@ class ActionRunnerTest < Test::Unit::TestCase
     action = mock("action")
     action.stubs(:prepare)
     action.stubs(:execute!)
+    action.stubs(:cleanup)
     action
   end
 
@@ -120,7 +121,7 @@ class ActionRunnerTest < Test::Unit::TestCase
       run_class.expects(:new).once.returns(run_action)
       @runner.actions << action
 
-      [:prepare, :execute!].each do |method|
+      [:prepare, :execute!, :cleanup].each do |method|
         action.expects(method).never
         run_action.expects(method).once
       end
@@ -146,7 +147,7 @@ class ActionRunnerTest < Test::Unit::TestCase
         actions << action
       end
 
-      [:prepare, :execute!].each do |method|
+      [:prepare, :execute!, :cleanup].each do |method|
         actions.each do |action|
           action.expects(method).once.in_sequence(action_seq)
         end