4 files changed, 12 insertions, 23 deletions
diff --git a/railties/lib/rails/tasks/framework.rake b/railties/lib/rails/tasks/framework.rake
index a2167796eb..f5586b53f0 100644
--- a/railties/lib/rails/tasks/framework.rake
+++ b/railties/lib/rails/tasks/framework.rake
@@ -1,5 +1,3 @@
-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", "update:upgrade_guide_info" ]
@@ -73,15 +71,3 @@ namespace :app do
     end
   end
 end
-
-namespace :rails do
-  %i(update template templates:copy update:configs update:bin).each do |task_name|
-    task "#{task_name}" do
-      ActiveSupport::Deprecation.warn(<<-MSG.squish)
-        Running #{task_name} with the rails: namespace is deprecated in favor of app: namespace.
-        Run bin/rails app:#{task_name} instead.
-      MSG
-      Rake.application.invoke_task("app:#{task_name}")
-    end
-  end
-end
diff --git a/railties/lib/rails/tasks/routes.rake b/railties/lib/rails/tasks/routes.rake
index f5e5b9ae87..215fb2ceb5 100644
--- a/railties/lib/rails/tasks/routes.rake
+++ b/railties/lib/rails/tasks/routes.rake
@@ -1,5 +1,3 @@
-require "active_support/deprecation"
-require "active_support/core_ext/string/strip" # for strip_heredoc
 require "optparse"
 
 desc "Print out all defined routes in match order, with names. Target specific controller with -c option, or grep routes using -g option"
@@ -7,15 +5,8 @@ task routes: :environment do
   all_routes = Rails.application.routes.routes
   require "action_dispatch/routing/inspector"
   inspector = ActionDispatch::Routing::RoutesInspector.new(all_routes)
-  if ARGV.any? { |argv| argv.start_with? "CONTROLLER" }
-    puts <<-eow.strip_heredoc
-      Passing `CONTROLLER` to `bin/rails routes` is deprecated and will be removed in Rails 5.1.
-      Please use `bin/rails routes -c controller_name` instead.
-    eow
-  end
 
   routes_filter = nil
-  routes_filter = { controller: ENV["CONTROLLER"] } if ENV["CONTROLLER"]
 
   OptionParser.new do |opts|
     opts.banner = "Usage: rails routes [options]"
diff --git a/railties/lib/rails/tasks/statistics.rake b/railties/lib/rails/tasks/statistics.rake
index ba1697186e..cb569be58b 100644
--- a/railties/lib/rails/tasks/statistics.rake
+++ b/railties/lib/rails/tasks/statistics.rake
@@ -17,6 +17,7 @@ STATS_DIRECTORIES = [
   %w(Mailer\ tests      test/mailers),
   %w(Job\ tests         test/jobs),
   %w(Integration\ tests test/integration),
+  %w(System\ tests      test/system),
 ].collect do |name, dir|
   [ name, "#{File.dirname(Rake.application.rakefile_location)}/#{dir}" ]
 end.select { |name, dir| File.directory?(dir) }
diff --git a/railties/lib/rails/tasks/yarn.rake b/railties/lib/rails/tasks/yarn.rake
new file mode 100644
index 0000000000..87476b1b8c
--- /dev/null
+++ b/railties/lib/rails/tasks/yarn.rake
@@ -0,0 +1,11 @@
+namespace :yarn do
+  desc "Install all JavaScript dependencies as specified via Yarn"
+  task :install do
+    system("./bin/yarn install --no-progress")
+  end
+end
+
+# Run Yarn prior to Sprockets assets precompilation, so dependencies are available for use.
+if Rake::Task.task_defined?("assets:precompile")
+  Rake::Task["assets:precompile"].enhance [ "yarn:install" ]
+end