Add new settings every time we deploy

This way we don't need to add and execute rake tasks every time we add a
new setting.

config/deploy.rb

@@ -45,6 +45,7 @@ namespace :deploy do
   #before :starting, "rvm1:install:ruby" # install Ruby and create gemset
   #before :starting, "install_bundler_gem" # install bundler gem
 
+  after "deploy:migrate", "add_new_settings"
   after :publishing, "deploy:restart"
   after :published, "delayed_job:restart"
   after :published, "refresh_sitemap"
@@ -67,3 +68,13 @@ task :refresh_sitemap do
     end
   end
 end
+
+task :add_new_settings do
+  on roles(:app) do
+    within release_path do
+      with rails_env: fetch(:rails_env) do
+        execute :rake, "settings:add_new_settings"
+      end
+    end
+  end
+end

lib/tasks/settings.rake

@@ -46,4 +46,8 @@ namespace :settings do
     Setting.rename_key from: "feature.homepage.widgets.feeds.processes", to: "homepage.widgets.feeds.processes"
   end
 
+  desc "Add new settings"
+  task add_new_settings: :environment do
+    Setting.add_new_settings
+  end
 end