Configure Rubocop

.rubocop.yml

@@ -0,0 +1,15 @@
+require:
+  - rubocop-rails
+  - rubocop-performance
+
+AllCops:
+  TargetRubyVersion: 3.1.2
+  NewCops: enable
+  Exclude:
+    - bin/**/*
+
+Style/StringLiterals:
+  EnforcedStyle: double_quotes
+
+Style/Documentation:
+  Enabled: false

Gemfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 source "https://rubygems.org"
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
@@ -25,7 +27,7 @@ gem "puma", "~> 5.0"
 # gem "bcrypt", "~> 3.1.7"
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
-gem "tzinfo-data", platforms: %i[ mingw mswin x64_mingw jruby ]
+gem "tzinfo-data", platforms: %i[mingw mswin x64_mingw jruby]
 
 # Reduces boot times through caching; required in config/boot.rb
 gem "bootsnap", require: false
@@ -38,11 +40,13 @@ gem "bootsnap", require: false
 
 group :development, :test do
   # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
-  gem "debug", platforms: %i[ mri mingw x64_mingw ]
+  gem "debug", platforms: %i[mri mingw x64_mingw]
+  gem "rubocop", "~> 1.48", ">= 1.48.1", require: false
+  gem "rubocop-performance", "~> 1.16", require: false
+  gem "rubocop-rails", "~> 2.18", require: false
 end
 
 group :development do
   # Speed up commands on slow machines / big apps [https://github.com/rails/spring]
   # gem "spring"
 end
-

Gemfile.lock

@@ -66,6 +66,7 @@ GEM
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
       tzinfo (~> 2.0)
+    ast (2.4.2)
     bootsnap (1.16.0)
       msgpack (~> 1.2)
     builder (3.2.4)
@@ -78,6 +79,7 @@ GEM
       activesupport (>= 5.0)
     i18n (1.12.0)
       concurrent-ruby (~> 1.0)
+    json (2.6.3)
     loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
@@ -103,6 +105,9 @@ GEM
     nio4r (2.5.8)
     nokogiri (1.14.2-arm64-darwin)
       racc (~> 1.4)
+    parallel (1.22.1)
+    parser (3.2.1.1)
+      ast (~> 2.4.1)
     pg (1.4.6)
     puma (5.6.5)
       nio4r (~> 2.0)
@@ -136,11 +141,35 @@ GEM
       rake (>= 12.2)
       thor (~> 1.0)
       zeitwerk (~> 2.5)
+    rainbow (3.1.1)
     rake (13.0.6)
+    regexp_parser (2.7.0)
+    rexml (3.2.5)
+    rubocop (1.48.1)
+      json (~> 2.3)
+      parallel (~> 1.10)
+      parser (>= 3.2.0.0)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 1.8, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.26.0, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.28.0)
+      parser (>= 3.2.1.0)
+    rubocop-performance (1.16.0)
+      rubocop (>= 1.7.0, < 2.0)
+      rubocop-ast (>= 0.4.0)
+    rubocop-rails (2.18.0)
+      activesupport (>= 4.2.0)
+      rack (>= 1.1)
+      rubocop (>= 1.33.0, < 2.0)
+    ruby-progressbar (1.13.0)
     thor (1.2.1)
     timeout (0.3.2)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
+    unicode-display_width (2.4.2)
     websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
@@ -155,6 +184,9 @@ DEPENDENCIES
   pg (~> 1.1)
   puma (~> 5.0)
   rails (~> 7.0.4, >= 7.0.4.3)
+  rubocop (~> 1.48, >= 1.48.1)
+  rubocop-performance (~> 1.16)
+  rubocop-rails (~> 2.18)
   tzinfo-data
 
 RUBY VERSION

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

@@ -1,2 +1,4 @@
+# frozen_string_literal: true
+
 class ApplicationController < ActionController::API
 end

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: "[email protected]"
   layout "mailer"

app/models/application_record.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ApplicationRecord < ActiveRecord::Base
   primary_abstract_class
 end

bin/rubocop

@@ -0,0 +1,27 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+#
+# This file was generated by Bundler.
+#
+# The application 'rubocop' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../Gemfile", __dir__)
+
+bundle_binstub = File.expand_path("bundle", __dir__)
+
+if File.file?(bundle_binstub)
+  if File.read(bundle_binstub, 300).include?("This file was generated by Bundler")
+    load(bundle_binstub)
+  else
+    abort("Your `bin/bundle` was not generated by Bundler, so this binstub cannot run.
+Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this command again.")
+  end
+end
+
+require "rubygems"
+require "bundler/setup"
+
+load Gem.bin_path("rubocop", "rubocop")

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/all"

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
@@ -53,7 +55,6 @@
   # Highlight code that triggered database queries in logs.
   config.active_record.verbose_query_logs = true
 
-
   # Raises error for missing translations.
   # config.i18n.raise_on_missing_translations = true
 

config/environments/production.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_support/core_ext/integer/time"
 
 Rails.application.configure do
@@ -13,7 +15,7 @@
   config.eager_load = true
 
   # Full error reports are disabled and caching is turned on.
-  config.consider_all_requests_local       = false
+  config.consider_all_requests_local = false
 
   # Ensures that a master key has been made available in either ENV["RAILS_MASTER_KEY"]
   # or in config/master.key. This key is used to decrypt credentials (and other encrypted files).
@@ -46,7 +48,7 @@
   config.log_level = :info
 
   # Prepend all log lines with the following tags.
-  config.log_tags = [ :request_id ]
+  config.log_tags = [:request_id]
 
   # Use a different cache store in production.
   # config.cache_store = :mem_cache_store
@@ -69,14 +71,14 @@
   config.active_support.report_deprecations = false
 
   # Use default logging formatter so that PID and timestamp are not suppressed.
-  config.log_formatter = ::Logger::Formatter.new
+  config.log_formatter = Logger::Formatter.new
 
   # Use a different logger for distributed setups.
   # require "syslog/logger"
   # 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/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

@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Configure parameters to be filtered from the log file. Use this to limit dissemination of
 # sensitive information. See the ActiveSupport::ParameterFilter documentation for supported
 # notations and behaviors.
-Rails.application.config.filter_parameters += [
-  :passw, :secret, :token, :_key, :crypt, :salt, :certificate, :otp, :ssn
+Rails.application.config.filter_parameters += %i[
+  passw secret token _key crypt salt certificate otp ssn
 ]

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/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
   # Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html
 

db/seeds.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # This file should contain all the record creation needed to seed the database with its default values.
 # The data can then be loaded with the bin/rails db:seed command (or created alongside the database with db:setup).
 #

test/channels/application_cable/connection_test.rb

@@ -1,11 +1,15 @@
+# frozen_string_literal: true
+
 require "test_helper"
 
-class ApplicationCable::ConnectionTest < ActionCable::Connection::TestCase
-  # test "connects with cookies" do
-  #   cookies.signed[:user_id] = 42
-  #
-  #   connect
-  #
-  #   assert_equal connection.user_id, "42"
-  # end
+module ApplicationCable
+  class ConnectionTest < ActionCable::Connection::TestCase
+    # test "connects with cookies" do
+    #   cookies.signed[:user_id] = 42
+    #
+    #   connect
+    #
+    #   assert_equal connection.user_id, "42"
+    # end
+  end
 end

test/test_helper.rb

@@ -1,13 +1,17 @@
+# frozen_string_literal: true
+
 ENV["RAILS_ENV"] ||= "test"
 require_relative "../config/environment"
 require "rails/test_help"
 
-class ActiveSupport::TestCase
-  # Run tests in parallel with specified workers
-  parallelize(workers: :number_of_processors)
+module ActiveSupport
+  class TestCase
+    # Run tests in parallel with specified workers
+    parallelize(workers: :number_of_processors)
 
-  # Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order.
-  fixtures :all
+    # Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order.
+    fixtures :all
 
-  # Add more helper methods to be used by all tests here...
+    # Add more helper methods to be used by all tests here...
+  end
 end