Display link to Rails upgrade guide at the end of `rails app:update` task.

- This will nudge people in the direction of going through upgrade
  guides.

2 files changed, 10 insertions, 1 deletions

diff --git a/railties/lib/rails/generators/rails/app/app_generator.rb b/railties/lib/rails/generators/rails/app/app_generator.rb
index 448dce06af..afa76aae44 100644
--- a/railties/lib/rails/generators/rails/app/app_generator.rb
+++ b/railties/lib/rails/generators/rails/app/app_generator.rb
@@ -226,6 +226,11 @@ module Rails
       end
       remove_task :update_config_files
 
+      def display_upgrade_guide_info
+        say "\nAfter this, check Rails upgrade guide at http://guides.rubyonrails.org/upgrading_ruby_on_rails.html for more details about upgrading your app."
+      end
+      remove_task :display_upgrade_info
+
       def create_boot_file
         template "config/boot.rb"
       end
diff --git a/railties/lib/rails/tasks/framework.rake b/railties/lib/rails/tasks/framework.rake
index 51d9daaaa9..255312493f 100644
--- a/railties/lib/rails/tasks/framework.rake
+++ b/railties/lib/rails/tasks/framework.rake
@@ -2,7 +2,7 @@ require 'active_support/deprecation'
 
 namespace :app do
   desc "Update configs and some other initially generated files (or use just update:configs or update:bin)"
-  task update: [ "update:configs", "update:bin" ]
+  task update: [ "update:configs", "update:bin", "update:upgrade_guide_info" ]
 
   desc "Applies the template supplied by LOCATION=(/path/to/template) or URL"
   task template: :environment do
@@ -67,6 +67,10 @@ namespace :app do
     task :bin do
       RailsUpdate.invoke_from_app_generator :create_bin_files
     end
+
+    task :upgrade_guide_info do
+      RailsUpdate.invoke_from_app_generator :display_upgrade_guide_info
+    end
   end
 end