Commenting on the Vagrant::Command class

lib/vagrant/command.rb

@@ -6,6 +6,8 @@ module Vagrant
     attr_reader :env
 
     class <<self
+      # Executes a given subcommand within the current environment (from the
+      # current working directory).
       def execute(*args)
         env = Environment.load!
         env.commands.subcommand(*args)
@@ -16,12 +18,15 @@ module Vagrant
       @env = env
     end
 
+    # Execute a subcommand with the given name and args. This method properly
+    # finds the subcommand, instantiates it, and executes.
     def subcommand(name, *args)
       command_klass = Commands.const_get(camelize(name))
       command = command_klass.new(env)
       command.execute(args)
     end
 
+    # Camel-case a string.
     def camelize(string)
       parts = string.to_s.split(/[^a-z0-9]/).collect do |part|
         part.capitalize