1 files changed, 21 insertions, 5 deletions
diff --git a/railties/lib/rails/commands/commands_tasks.rb b/railties/lib/rails/commands/commands_tasks.rb
index 7e6b49e2a3..da3b9452d5 100644
--- a/railties/lib/rails/commands/commands_tasks.rb
+++ b/railties/lib/rails/commands/commands_tasks.rb
@@ -1,3 +1,5 @@
+require 'rails/commands/rake_proxy'
+
 module Rails
   # This is a class which takes in a rails command and initiates the appropriate
   # initiation sequence.
@@ -5,6 +7,8 @@ module Rails
   # Warning: This class mutates ARGV because some commands require manipulating
   # it before they are run.
   class CommandsTasks # :nodoc:
+    include Rails::RakeProxy
+
     attr_reader :argv
 
     HELP_MESSAGE = <<-EOT
@@ -20,14 +24,18 @@ The most common rails commands are:
  new         Create a new Rails application. "rails new my_app" creates a
              new application called MyApp in "./my_app"
 
-In addition to those, there are:
- destroy      Undo code generated with "generate" (short-cut alias: "d")
- plugin new   Generates skeleton for developing a Rails plugin
- runner       Run a piece of code in the application environment (short-cut alias: "r")
-
 All commands can be run with -h (or --help) for more information.
+
+In addition to those commands, there are:
 EOT
 
+    ADDITIONAL_COMMANDS = [
+      [ 'destroy', 'Undo code generated with "generate" (short-cut alias: "d")' ],
+      [ 'plugin new', 'Generates skeleton for developing a Rails plugin' ],
+      [ 'runner',
+        'Run a piece of code in the application environment (short-cut alias: "r")' ]
+    ]
+
     COMMAND_WHITELIST = %w(plugin generate destroy console server dbconsole runner new version help test)
 
     def initialize(argv)
@@ -39,6 +47,8 @@ EOT
 
       if COMMAND_WHITELIST.include?(command)
         send(command)
+      else
+        run_rake_task(command)
       end
     end
 
@@ -109,6 +119,7 @@ EOT
 
     def help
       write_help_message
+      write_commands ADDITIONAL_COMMANDS + formatted_rake_tasks
     end
 
     private
@@ -150,6 +161,11 @@ EOT
         puts HELP_MESSAGE
       end
 
+      def write_commands(commands)
+        width = commands.map { |name, _| name.size }.max || 10
+        commands.each { |command| printf(" %-#{width}s   %s\n", *command) }
+      end
+
       def parse_command(command)
         case command
         when '--version', '-v'