rails -> Rails [ci skip]

activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb

@@ -159,7 +159,7 @@ module ActiveRecord
       end
 
       # Returns 62. SQLite supports index names up to 64
-      # characters. The rest is used by rails internally to perform
+      # characters. The rest is used by Rails internally to perform
       # temporary rename operations
       def allowed_index_name_length
         index_name_length - 2

activerecord/lib/active_record/railtie.rb

@@ -3,7 +3,7 @@ require "rails"
 require "active_model/railtie"
 
 # For now, action_controller must always be present with
-# rails, so let's make sure that it gets required before
+# Rails, so let's make sure that it gets required before
 # here. This is needed for correctly setting up the middleware.
 # In the future, this might become an optional require.
 require "action_controller/railtie"

guides/source/plugins.md

@@ -30,7 +30,7 @@ Setup
 -----
 
 Currently, Rails plugins are built as gems, _gemified plugins_. They can be shared across
-different rails applications using RubyGems and Bundler if desired.
+different Rails applications using RubyGems and Bundler if desired.
 
 ### Generate a gemified plugin.
 

guides/source/security.md

@@ -249,7 +249,7 @@ There are many other possibilities, like using a `<script>` tag to make a cross-
 
 Note: We can't distinguish a `<script>` tag's origin—whether it's a tag on your own site or on some other malicious site—so we must block all `<script>` across the board, even if it's actually a safe same-origin script served from your own site. In these cases, explicitly skip CSRF protection on actions that serve JavaScript meant for a `<script>` tag.
 
-To protect against all other forged requests, we introduce a _required security token_ that our site knows but other sites don't know. We include the security token in requests and verify it on the server. This is a one-liner in your application controller, and is the default for newly created rails applications:
+To protect against all other forged requests, we introduce a _required security token_ that our site knows but other sites don't know. We include the security token in requests and verify it on the server. This is a one-liner in your application controller, and is the default for newly created Rails applications:
 
 ```ruby
 protect_from_forgery with: :exception

railties/lib/rails.rb

@@ -52,7 +52,7 @@ module Rails
       end
     end
 
-    # Returns a Pathname object of the current rails project,
+    # Returns a Pathname object of the current Rails project,
     # otherwise it returns nil if there is no project:
     #
     #   Rails.root
@@ -77,7 +77,7 @@ module Rails
       @_env = ActiveSupport::StringInquirer.new(environment)
     end
 
-    # Returns all rails groups for loading based on:
+    # Returns all Rails groups for loading based on:
     #
     # * The Rails environment;
     # * The environment variable RAILS_GROUPS;
@@ -100,7 +100,7 @@ module Rails
     end
 
     # Returns a Pathname object of the public folder of the current
-    # rails project, otherwise it returns nil if there is no project:
+    # Rails project, otherwise it returns nil if there is no project:
     #
     #   Rails.public_path
     #     # => #<Pathname:/Users/someuser/some/path/project/public>

railties/lib/rails/generators/rails/app/templates/config/databases/postgresql.yml

@@ -17,7 +17,7 @@
 default: &default
   adapter: postgresql
   encoding: unicode
-  # For details on connection pooling, see rails configuration guide
+  # For details on connection pooling, see Rails configuration guide
   # http://guides.rubyonrails.org/configuring.html#database-pooling
   pool: <%%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
 

railties/test/application/rackup_test.rb

@@ -18,7 +18,7 @@ module ApplicationTests
       teardown_app
     end
 
-    test "rails app is present" do
+    test "Rails app is present" do
       assert File.exist?(app_path("config"))
     end
 

railties/test/isolation/abstract_unit.rb

@@ -1,7 +1,7 @@
 # Note:
 # It is important to keep this file as light as possible
 # the goal for tests that require this is to test booting up
-# rails from an empty state, so anything added here could
+# Rails from an empty state, so anything added here could
 # hide potential failures
 #
 # It is also good to know what is the bare minimum to get