string literals; why not.

.rubocop.yml

@@ -19,6 +19,10 @@ Style/ExtraSpacing:
   Exclude:
     - db/migrate/**/*
 
+Style/FrozenStringLiteralComment:
+  Enabled: true
+  EnforcedStyle: always
+
 Style/IndentationConsistency:
   EnforcedStyle: rails
   Exclude:

Gemfile

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 source 'https://rubygems.org'
 
 gem 'figaro', '~> 1.1.1'

Rakefile

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Add your own tasks in files placed in lib/tasks ending in .rake,
 # for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
 

app/controllers/accounts_controller.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class AccountsController < ApplicationController
   before_action :set_account, only: [:show, :edit, :reveal, :update, :destroy]
 

app/controllers/application_controller.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class ApplicationController < ActionController::Base
   protect_from_forgery with: :exception
 

app/controllers/auth_controller.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class AuthController < ApplicationController
   skip_before_action :verify_session
 

app/helpers/application_helper.rb

@@ -1,2 +1,3 @@
+# frozen_string_literal: true
 module ApplicationHelper
 end

app/models/account.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class Account < ApplicationRecord
   serialize :password, CryptSerializer
 end

app/models/application_record.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class ApplicationRecord < ActiveRecord::Base
   self.abstract_class = true
 

app/services/app_config.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class AppConfig < Settingslogic
   source "#{Rails.root}/config/application.yml"
   namespace Rails.env

app/services/crypt_serializer.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'openssl'
 require 'base64'
 

app/views/accounts/_account.json.jbuilder

@@ -1,2 +1,3 @@
+# frozen_string_literal: true
 json.extract! account, :id, :username, :password, :home, :site, :created_at, :updated_at
 json.url account_url(account, format: :json)

app/views/accounts/index.json.jbuilder

@@ -1 +1,2 @@
+# frozen_string_literal: true
 json.array! @accounts, partial: 'accounts/account', as: :account

app/views/accounts/show.json.jbuilder

@@ -1 +1,2 @@
+# frozen_string_literal: true
 json.partial! "accounts/account", account: @account

config.ru

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # This file is used by Rack-based servers to start the application.
 
 require_relative 'config/environment'

config/application.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'boot'
 
 require 'rails/all'

config/boot.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
 
 require 'bundler/setup' # Set up gems listed in the Gemfile.

config/environment.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Load the Rails application.
 require_relative 'application'
 

config/environments/development.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 

config/environments/production.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 

config/environments/test.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 

config/initializers/application_controller_renderer.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Be sure to restart your server when you modify this file.
 
 # ApplicationController.renderer.defaults.merge!(

config/initializers/assets.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Be sure to restart your server when you modify this file.
 
 # Version of your assets, change this if you want to expire all your assets.

config/initializers/backtrace_silencers.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Be sure to restart your server when you modify this file.
 
 # You can add backtrace silencers for libraries that you're using but don't wish to see in your backtraces.

config/initializers/cookies_serializer.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Be sure to restart your server when you modify this file.
 
 # Specify a serializer for the signed and encrypted cookie jars.

config/initializers/filter_parameter_logging.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Be sure to restart your server when you modify this file.
 
 # Configure sensitive parameters which will be filtered from the log file.

config/initializers/inflections.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Be sure to restart your server when you modify this file.
 
 # Add new inflection rules using the following format. Inflections

config/initializers/mime_types.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Be sure to restart your server when you modify this file.
 
 # Add new mime types for use in respond_to blocks:

config/initializers/new_framework_defaults.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Be sure to restart your server when you modify this file.
 #
 # This file contains migration options to ease your Rails 5.0 upgrade.

config/initializers/session_store.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Be sure to restart your server when you modify this file.
 
 Rails.application.config.session_store :cookie_store, key: '_ftp_manager_session'

config/initializers/wrap_parameters.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Be sure to restart your server when you modify this file.
 
 # This file contains settings for ActionController::ParamsWrapper which

config/puma.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Puma can serve each request in a thread from an internal thread pool.
 # The `threads` method setting takes two numbers a minimum and maximum.
 # Any libraries that use thread pools should be configured to match

config/routes.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 Rails.application.routes.draw do
   get 'accounts/reveal/:id', to: 'accounts#reveal', as: :reveal_password
   resources :accounts

config/spring.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 %w(
   .ruby-version
   .rbenv-vars

db/migrate/20160828022337_create_accounts.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class CreateAccounts < ActiveRecord::Migration[5.0]
   def change
     create_table :accounts do |t|

test/controllers/accounts_controller_test.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'test_helper'
 
 class AccountsControllerTest < ActionDispatch::IntegrationTest

test/controllers/auth_controller_test.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'test_helper'
 
 class AuthControllerTest < ActionDispatch::IntegrationTest

test/models/account_test.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'test_helper'
 
 class AccountTest < ActiveSupport::TestCase

test/services/app_config_test.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'test_helper'
 
 class AppConfigTest < ActiveSupport::TestCase

test/services/crypt_serializer_test.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'test_helper'
 
 class CryptSerializerTest < ActiveSupport::TestCase

test/test_helper.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 ENV['RAILS_ENV'] ||= 'test'
 
 # https://github.com/colszowka/simplecov

test/test_helpers/test_auth_helper.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module TestAuthHelper
   ## Monkey patch AuthController, because...auth.
   AuthController.class_eval do