rubocop string freeze

Gemfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 

Rakefile

@@ -1,3 +1,5 @@
+# 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/channels/application_cable/channel.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module ApplicationCable
   class Channel < ActionCable::Channel::Base
   end

app/channels/application_cable/connection.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module ApplicationCable
   class Connection < ActionCable::Connection::Base
   end

app/controllers/application_controller.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ApplicationController < ActionController::API
   rescue_from ActiveRecord::RecordInvalid, with: :render_unprocessable_entity_response
   rescue_from ActiveRecord::RecordNotFound, with: :render_not_found_response

app/controllers/categories_controller.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CategoriesController < ApplicationController
   # GET /categories
   def index
@@ -16,7 +18,7 @@ def category_products_mean
     @categories.each do |category|
       category_interests = category.products.map(&:interests).flatten.map(&:score)
       unless category_interests.empty?
-        average_score = category_interests.sum.to_f / category_interests.count.to_f
+        average_score = category_interests.sum.to_f / category_interests.count
         category.update(score: average_score.round(2))
       end
     end

app/controllers/interests_controller.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class InterestsController < ApplicationController
   # POST /interests
   def create

app/controllers/products_controller.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ProductsController < ApplicationController
   # GET /products
   def index

app/controllers/users_controller.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class UsersController < ApplicationController
   # POST /users
   def create

app/jobs/application_job.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ApplicationJob < ActiveJob::Base
   # Automatically retry jobs that encountered a deadlock
   # retry_on ActiveRecord::Deadlocked

app/mailers/application_mailer.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ApplicationMailer < ActionMailer::Base
   default from: 'from@example.com'
   layout 'mailer'

app/models/application_record.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ApplicationRecord < ActiveRecord::Base
   self.abstract_class = true
 

app/models/category.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Category < ApplicationRecord
   include OrderScoreConcern
   has_many :products

app/models/concerns/order_score_concern.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module OrderScoreConcern
   extend ActiveSupport::Concern
 

app/models/interest.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Interest < ApplicationRecord
   belongs_to :user
   belongs_to :product

app/models/product.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Product < ApplicationRecord
   include OrderScoreConcern
   after_initialize :generate_uuid

app/models/user.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class User < ApplicationRecord
   after_initialize :generate_uuid
   has_many :interests

app/serializers/category_serializer.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CategorySerializer < ActiveModel::Serializer
   attributes :category, :score
 end

app/serializers/interest_serializer.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class InterestSerializer < ActiveModel::Serializer
   attributes :user_id, :product_id, :score
 end

app/serializers/product_serializer.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ProductSerializer < ActiveModel::Serializer
   attributes :id, :name, :category
 

app/serializers/score_product_serializer.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ScoreProductSerializer < ActiveModel::Serializer
   attributes :product, :score
 

app/serializers/user_serializer.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class UserSerializer < ActiveModel::Serializer
   attributes :id, :name, :email
 end

bin/bundle

@@ -14,7 +14,7 @@ m = Module.new do
   module_function
 
   def invoked_as_script?
-    File.expand_path($0) == File.expand_path(__FILE__)
+    File.expand_path($PROGRAM_NAME) == File.expand_path(__FILE__)
   end
 
   def env_var_version

bin/rails

@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby.exe
+# frozen_string_literal: true
+
 APP_PATH = File.expand_path('../config/application', __dir__)
 require_relative '../config/boot'
 require 'rails/commands'

bin/rake

@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby.exe
+# frozen_string_literal: true
+
 require_relative '../config/boot'
 require 'rake'
 Rake.application.run

bin/setup

@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby.exe
+# frozen_string_literal: true
+
 require 'fileutils'
 
 # path to your application root.

config.ru

@@ -1,3 +1,5 @@
+# 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 +1,5 @@
+# frozen_string_literal: true
+
 require_relative 'boot'
 
 require 'rails'

config/boot.rb

@@ -1,3 +1,5 @@
+# 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 +1,5 @@
+# frozen_string_literal: true
+
 # Load the Rails application.
 require_relative 'application'
 

config/environments/development.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'active_support/core_ext/integer/time'
 
 Rails.application.configure do

config/environments/production.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'active_support/core_ext/integer/time'
 
 Rails.application.configure do
@@ -82,7 +84,7 @@
   # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new 'app-name')
 
   if ENV['RAILS_LOG_TO_STDOUT'].present?
-    logger           = ActiveSupport::Logger.new(STDOUT)
+    logger           = ActiveSupport::Logger.new($stdout)
     logger.formatter = config.log_formatter
     config.logger    = ActiveSupport::TaggedLogging.new(logger)
   end

config/environments/test.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'active_support/core_ext/integer/time'
 
 # The test environment is used exclusively to run your application's

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.
 
 # ActiveSupport::Reloader.to_prepare do

config/initializers/backtrace_silencers.rb

@@ -1,3 +1,5 @@
+# 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/cors.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Be sure to restart your server when you modify this file.
 
 # Avoid CORS issues when API is called from the frontend app.

config/initializers/filter_parameter_logging.rb

@@ -1,3 +1,5 @@
+# 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/rswag-ui.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 Rswag::Ui.configure do |c|
   # List the Swagger endpoints that you want to be documented through the swagger-ui
   # The first parameter is the path (absolute or relative to the UI host) to the corresponding

config/initializers/rswag_api.rb

@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 Rswag::Api.configure do |c|
   # Specify a root folder where Swagger JSON files are located
   # This is used by the Swagger middleware to serve requests for API descriptions
   # NOTE: If you're using rswag-specs to generate Swagger, you'll need to ensure
   # that it's configured to generate files in the same folder
-  c.swagger_root = Rails.root.to_s + '/swagger'
+  c.swagger_root = "#{Rails.root}/swagger"
 
   # Inject a lamda function to alter the returned Swagger prior to serialization
   # The function will have access to the rack env for the current request

config/initializers/wrap_parameters.rb

@@ -1,3 +1,5 @@
+# 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

@@ -1,10 +1,12 @@
+# 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
 # the maximum value specified for Puma. Default is set to 5 threads for minimum
 # and maximum; this matches the default thread size of Active Record.
 #
-max_threads_count = ENV.fetch('RAILS_MAX_THREADS') { 5 }
+max_threads_count = ENV.fetch('RAILS_MAX_THREADS', 5)
 min_threads_count = ENV.fetch('RAILS_MIN_THREADS') { max_threads_count }
 threads min_threads_count, max_threads_count
 
@@ -15,14 +17,14 @@
 
 # Specifies the `port` that Puma will listen on to receive requests; default is 3000.
 #
-port ENV.fetch('PORT') { 3000 }
+port ENV.fetch('PORT', 3000)
 
 # Specifies the `environment` that Puma will run in.
 #
-environment ENV.fetch('RAILS_ENV') { 'development' }
+environment ENV.fetch('RAILS_ENV', 'development')
 
 # Specifies the `pidfile` that Puma will use.
-pidfile ENV.fetch('PIDFILE') { 'tmp/pids/server.pid' }
+pidfile ENV.fetch('PIDFILE', 'tmp/pids/server.pid')
 
 # Specifies the number of `workers` to boot in clustered mode.
 # Workers are forked web server processes. If using threads and workers together

config/routes.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 Rails.application.routes.draw do
   mount Rswag::Ui::Engine => '/'
   mount Rswag::Api::Engine => '/api-docs'

db/migrate/20210511011258_create_categories.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateCategories < ActiveRecord::Migration[6.1]
   def change
     create_table :categories do |t|

db/migrate/20210511011503_create_products.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateProducts < ActiveRecord::Migration[6.1]
   def change
     create_table :products, id: false do |t|

db/migrate/20210511143408_create_users.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateUsers < ActiveRecord::Migration[6.1]
   def change
     create_table :users, id: false do |t|

db/migrate/20210511144143_create_interests.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateInterests < ActiveRecord::Migration[6.1]
   def change
     create_table :interests do |t|

db/migrate/20210512135343_add_score_to_products.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddScoreToProducts < ActiveRecord::Migration[6.1]
   def change
     add_column :products, :score, :float

db/migrate/20210516230744_change_score_type_in_interests.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ChangeScoreTypeInInterests < ActiveRecord::Migration[6.1]
   def change
     change_column :interests, :score, :float

db/migrate/20210516232507_add_score_default_value_in_categories.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddScoreDefaultValueInCategories < ActiveRecord::Migration[6.1]
   def change
     change_column_default :categories, :score, 0.0

db/migrate/20210516232608_add_score_default_value_in_products.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddScoreDefaultValueInProducts < ActiveRecord::Migration[6.1]
   def change
     change_column_default :products, :score, 0.0