Upgrade command to 0.6.0 format added `vagrant upgrade_to_060`

lib/vagrant/cli.rb

@@ -13,12 +13,12 @@ module Vagrant
       if klass <= Command::GroupBase
         # A subclass of GroupBase is a subcommand, since it contains
         # many smaller commands within it.
-        desc usage, description
+        desc usage, description, opts
         subcommand name, klass
       elsif klass <= Command::Base
         # A subclass of Base is a single command, since it
-        # is invoked as a whole.
-        desc usage, description
+        # is invoked as a whole (as Thor::Group)
+        desc usage, description, opts
         define_method(name) { |*args| invoke klass, args }
       end
 

lib/vagrant/command/upgrade_to_060.rb

@@ -0,0 +1,34 @@
+module Vagrant
+  module Command
+    class UpgradeTo060Command < Base
+      desc "Upgrade pre-0.6.0 environment to 0.6.0"
+      register "upgrade_to_060", :hide => true
+
+      def execute
+        @env.ui.warn "vagrant.commands.upgrade_to_060.info", :_prefix => false
+        @env.ui.warn "", :_translate => false, :_prefix => false
+        if !@env.ui.yes? "vagrant.commands.upgrade_to_060.ask", :_prefix => false, :_color => :yellow
+          @env.ui.info "vagrant.commands.upgrade_to_060.quit", :_prefix => false
+          return
+        end
+
+        if !@env.local_data.empty?
+          # Gather the previously set virtual machines into a single
+          # active hash
+          active = @env.local_data.inject({}) do |acc, data|
+            key, uuid = data
+            acc[key.to_sym] = uuid
+            acc
+          end
+
+          # Set the active hash to the active list and save it
+          @env.local_data.clear
+          @env.local_data[:active] = active
+          @env.local_data.commit
+        end
+
+        @env.ui.confirm "vagrant.commands.upgrade_to_060.complete", :_prefix => false
+      end
+    end
+  end
+end

templates/locales/en.yml

@@ -126,6 +126,16 @@ en:
           VM, run `vagrant status NAME`.
       up:
         vm_created: "VM already created. Booting if its not already running..."
+      upgrade_to_060:
+        info: |-
+          This command will upgrade the current environment from a pre-0.6.0
+          environment to a 0.6.x compatible environment. Running this command
+          on a 0.6.0 environment may cause corrupt virtual machines, however,
+          so verify now that this is your first time running this command and
+          that this environment was created pre-0.6.0.
+        ask: "Are you sure you want to execute this command?"
+        quit: "Not executing this command by user request. Quitting..."
+        complete: "Environment upgraded to 0.6.0 successfully."
       version:
         output: "Vagrant version %{version}"