Railties updates for frozen string literals.

railties/lib/rails/command/base.rb

@@ -73,7 +73,7 @@ module Rails
 
         # Use Rails' default banner.
         def banner(*)
-          "#{executable} #{arguments.map(&:usage).join(' ')} [options]".squish!
+          "#{executable} #{arguments.map(&:usage).join(' ')} [options]".squish
         end
 
         # Sets the base_name taking into account the current class namespace.

railties/lib/rails/commands/dbconsole/dbconsole_command.rb

@@ -58,7 +58,7 @@ module Rails
         logon = ""
 
         if config["username"]
-          logon = config["username"]
+          logon = config["username"].dup
           logon << "/#{config['password']}" if config["password"] && @options["include_password"]
           logon << "@#{config['database']}" if config["database"]
         end

railties/lib/rails/generators.rb

@@ -271,7 +271,7 @@ module Rails
         else
           options     = sorted_groups.flat_map(&:last)
           suggestions = options.sort_by { |suggested| levenshtein_distance(namespace.to_s, suggested) }.first(3)
-          msg =  "Could not find generator '#{namespace}'. "
+          msg =  "Could not find generator '#{namespace}'. ".dup
           msg << "Maybe you meant #{ suggestions.map { |s| "'#{s}'" }.to_sentence(last_word_connector: " or ", locale: :en) }\n"
           msg << "Run `rails generate --help` for more options."
           puts msg

railties/lib/rails/generators/generated_attribute.rb

@@ -151,7 +151,7 @@ module Rails
       end
 
       def inject_options
-        "".tap { |s| options_for_migration.each { |k, v| s << ", #{k}: #{v.inspect}" } }
+        "".dup.tap { |s| options_for_migration.each { |k, v| s << ", #{k}: #{v.inspect}" } }
       end
 
       def inject_index_options

railties/lib/rails/generators/rails/resource_route/resource_route_generator.rb

@@ -36,7 +36,7 @@ module Rails
 
       private
         def route_string
-          @route_string ||= ""
+          @route_string ||= "".dup
         end
 
         def write(str, indent)

railties/lib/rails/info.rb

@@ -39,7 +39,7 @@ module Rails
       alias inspect to_s
 
       def to_html
-        "<table>".tap do |table|
+        "<table>".dup.tap do |table|
           properties.each do |(name, value)|
             table << %(<tr><td class="name">#{CGI.escapeHTML(name.to_s)}</td>)
             formatted_value = if value.kind_of?(Array)

railties/lib/rails/source_annotation_extractor.rb

@@ -45,7 +45,7 @@ class SourceAnnotationExtractor
     # If +options+ has a flag <tt>:tag</tt> the tag is shown as in the example above.
     # Otherwise the string contains just line and text.
     def to_s(options = {})
-      s = "[#{line.to_s.rjust(options[:indent])}] "
+      s = "[#{line.to_s.rjust(options[:indent])}] ".dup
       s << "[#{tag}] " if options[:tag]
       s << text
     end

railties/test/application/rake/notes_test.rb

@@ -90,7 +90,8 @@ module ApplicationTests
 
       test "custom rake task finds specific notes in specific directories" do
         app_file "app/controllers/some_controller.rb", "# TODO: note in app directory"
-        app_file "lib/some_file.rb", "# OPTIMIZE: note in lib directory\n" << "# FIXME: note in lib directory"
+        app_file "lib/some_file.rb", "# OPTIMIZE: note in lib directory\n" \
+          "# FIXME: note in lib directory"
         app_file "test/some_test.rb", 1000.times.map { "" }.join("\n") << "# TODO: note in test directory"
 
         app_file "lib/tasks/notes_custom.rake", <<-EOS

railties/test/console_helpers.rb

@@ -7,7 +7,7 @@ module ConsoleHelpers
   def assert_output(expected, io, timeout = 10)
     timeout = Time.now + timeout
 
-    output = ""
+    output = "".dup
     until output.include?(expected) || Time.now > timeout
       if IO.select([io], [], [], 0.1)
         output << io.read(1)

railties/test/generators/app_generator_test.rb

@@ -880,7 +880,7 @@ class AppGeneratorTest < Rails::Generators::TestCase
 
   def test_after_bundle_callback
     path = "http://example.org/rails_template"
-    template = %{ after_bundle { run 'echo ran after_bundle' } }
+    template = %{ after_bundle { run 'echo ran after_bundle' } }.dup
     template.instance_eval "def read; self; end" # Make the string respond to read
 
     check_open = -> *args do

railties/test/generators/shared_generator_tests.rb

@@ -77,7 +77,7 @@ module SharedGeneratorTests
 
   def test_template_is_executed_when_supplied_an_https_path
     path = "https://gist.github.com/josevalim/103208/raw/"
-    template = %{ say "It works!" }
+    template = %{ say "It works!" }.dup
     template.instance_eval "def read; self; end" # Make the string respond to read
 
     check_open = -> *args do

railties/test/isolation/abstract_unit.rb

@@ -66,7 +66,7 @@ module TestHelpers
     end
 
     def extract_body(response)
-      "".tap do |body|
+      "".dup.tap do |body|
         response[2].each { |chunk| body << chunk }
       end
     end

railties/test/railties/engine_test.rb

@@ -503,7 +503,7 @@ YAML
 
       def call(env)
         response = @app.call(env)
-        response[2].each(&:upcase!)
+        response[2] = response[2].collect(&:upcase)
         response
       end
     end

railties/test/secrets_test.rb

@@ -133,7 +133,7 @@ class Rails::SecretsTest < ActiveSupport::TestCase
           api_key: 00112233445566778899aabbccddeeff…
       end_of_secrets
 
-      Rails::Secrets.write(secrets.force_encoding(Encoding::ASCII_8BIT))
+      Rails::Secrets.write(secrets.dup.force_encoding(Encoding::ASCII_8BIT))
 
       Rails::Secrets.read_for_editing do |tmp_path|
         assert_match(/production:\n\s*api_key: 00112233445566778899aabbccddeeff…\n/, File.read(tmp_path))
@@ -153,7 +153,7 @@ class Rails::SecretsTest < ActiveSupport::TestCase
       Rails::Secrets.write(secrets)
 
       Rails::Secrets.read_for_editing do |tmp_path|
-        assert_equal(secrets.force_encoding(Encoding::ASCII_8BIT), IO.binread(tmp_path))
+        assert_equal(secrets.dup.force_encoding(Encoding::ASCII_8BIT), IO.binread(tmp_path))
       end
 
       assert_equal "00112233445566778899aabbccddeeff…\n", `bin/rails runner -e production "puts Rails.application.secrets.api_key"`