applies new string literal convention in railties/lib

The current code base is not uniform. After some discussion,
we have chosen to go with double quotes by default.

4 files changed, 20 insertions, 20 deletions

diff --git a/railties/lib/rails/application/bootstrap.rb b/railties/lib/rails/application/bootstrap.rb
index f615f22b26..11da271501 100644
--- a/railties/lib/rails/application/bootstrap.rb
+++ b/railties/lib/rails/application/bootstrap.rb
@@ -1,7 +1,7 @@
-require 'fileutils'
-require 'active_support/notifications'
-require 'active_support/dependencies'
-require 'active_support/descendants_tracker'
+require "fileutils"
+require "active_support/notifications"
+require "active_support/dependencies"
+require "active_support/descendants_tracker"
 
 module Rails
   class Application
@@ -36,7 +36,7 @@ INFO
             FileUtils.mkdir_p File.dirname path
           end
 
-          f = File.open path, 'a'
+          f = File.open path, "a"
           f.binmode
           f.sync = config.autoflush_log # if true make sure every write flushes
 
diff --git a/railties/lib/rails/application/configuration.rb b/railties/lib/rails/application/configuration.rb
index 285a63d4c6..810750ed35 100644
--- a/railties/lib/rails/application/configuration.rb
+++ b/railties/lib/rails/application/configuration.rb
@@ -1,10 +1,10 @@
-require 'active_support/core_ext/kernel/reporting'
-require 'active_support/file_update_checker'
-require 'rails/engine/configuration'
-require 'rails/source_annotation_extractor'
+require "active_support/core_ext/kernel/reporting"
+require "active_support/file_update_checker"
+require "rails/engine/configuration"
+require "rails/source_annotation_extractor"
 
-require 'active_support/deprecation'
-require 'active_support/core_ext/string/strip' # for strip_heredoc
+require "active_support/deprecation"
+require "active_support/core_ext/string/strip" # for strip_heredoc
 
 module Rails
   class Application
@@ -134,7 +134,7 @@ module Rails
           require "yaml"
           require "erb"
           YAML.load(ERB.new(yaml.read).result) || {}
-        elsif ENV['DATABASE_URL']
+        elsif ENV["DATABASE_URL"]
           # Value from ENV['DATABASE_URL'] is set to default database connection
           # by Active Record.
           {}
diff --git a/railties/lib/rails/application/default_middleware_stack.rb b/railties/lib/rails/application/default_middleware_stack.rb
index 381e548730..14c0a8cbe4 100644
--- a/railties/lib/rails/application/default_middleware_stack.rb
+++ b/railties/lib/rails/application/default_middleware_stack.rb
@@ -19,7 +19,7 @@ module Rails
 
           if config.public_file_server.enabled
             headers = config.public_file_server.headers || {}
-            headers['Cache-Control'.freeze] = config.static_cache_control if config.static_cache_control
+            headers["Cache-Control".freeze] = config.static_cache_control if config.static_cache_control
 
             middleware.use ::ActionDispatch::Static, paths["public"].first, index: config.public_file_server.index_name, headers: headers
           end
@@ -76,9 +76,9 @@ module Rails
           return unless rack_cache
 
           begin
-            require 'rack/cache'
+            require "rack/cache"
           rescue LoadError => error
-            error.message << ' Be sure to add rack-cache to your Gemfile'
+            error.message << " Be sure to add rack-cache to your Gemfile"
             raise
           end
 
diff --git a/railties/lib/rails/application/finisher.rb b/railties/lib/rails/application/finisher.rb
index 64de10a5c7..9f07f8fa02 100644
--- a/railties/lib/rails/application/finisher.rb
+++ b/railties/lib/rails/application/finisher.rb
@@ -22,13 +22,13 @@ module Rails
       initializer :add_builtin_route do |app|
         if Rails.env.development?
           app.routes.prepend do
-            get '/rails/info/properties' => "rails/info#properties", internal: true
-            get '/rails/info/routes'     => "rails/info#routes", internal: true
-            get '/rails/info'            => "rails/info#index", internal: true
+            get "/rails/info/properties" => "rails/info#properties", internal: true
+            get "/rails/info/routes"     => "rails/info#routes", internal: true
+            get "/rails/info"            => "rails/info#index", internal: true
           end
 
           app.routes.append do
-            get '/'                      => "rails/welcome#index", internal: true
+            get "/"                      => "rails/welcome#index", internal: true
           end
         end
       end
@@ -36,7 +36,7 @@ module Rails
       # Setup default session store if not already set in config/application.rb
       initializer :setup_default_session_store, before: :build_middleware_stack do |app|
         unless app.config.session_store?
-          app_name = app.class.name ? app.railtie_name.chomp('_application') : ''
+          app_name = app.class.name ? app.railtie_name.chomp("_application") : ""
           app.config.session_store :cookie_store, key: "_#{app_name}_session"
         end
       end