Added rubocop.

.rubocop.yml

@@ -0,0 +1,18 @@
+AllCops:
+  Exclude:
+    - vendor/**/*
+
+Metrics:
+  Enabled: false
+
+Metrics/LineLength:
+  Max: 256
+  Enabled: false
+
+Style/Documentation:
+  Enabled: false
+
+Style/FrozenStringLiteralComment:
+  Enabled: false
+
+inherit_from: .rubocop_todo.yml

.rubocop_todo.yml

@@ -0,0 +1,13 @@
+# This configuration was generated by
+# `rubocop --auto-gen-config`
+# on 2018-07-05 20:42:49 -0400 using RuboCop version 0.57.2.
+# The point is for the user to remove these configuration records
+# one by one as the offenses are removed from the code base.
+# Note that changes in the inspected code, or installation of new
+# versions of RuboCop, may require this file to be generated again.
+
+# Offense count: 2
+Style/MixinUsage:
+  Exclude:
+    - 'bin/setup'
+    - 'bin/update'

Gemfile

@@ -3,14 +3,15 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 ruby '2.5.1'
 
-gem 'rails', '~> 5.2.0'
-gem 'puma', '~> 3.11'
-gem 'mongoid'
 gem 'bootsnap', '>= 1.1.0', require: false
+gem 'mongoid'
+gem 'puma', '~> 3.11'
+gem 'rails', '~> 5.2.0'
 
 gem 'rack-cors'
 
 group :development, :test do
+  gem 'rubocop'
 end
 
 group :development do

Gemfile.lock

@@ -43,6 +43,7 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     arel (9.0.0)
+    ast (2.4.0)
     bootsnap (1.3.0)
       msgpack (~> 1.0)
     bson (4.3.0)
@@ -55,6 +56,7 @@ GEM
       activesupport (>= 4.2.0)
     i18n (1.0.1)
       concurrent-ruby (~> 1.0)
+    jaro_winkler (1.5.1-x86_64-darwin-17)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
@@ -80,6 +82,10 @@ GEM
     nio4r (2.3.1)
     nokogiri (1.8.4)
       mini_portile2 (~> 2.3.0)
+    parallel (1.12.1)
+    parser (2.5.1.0)
+      ast (~> 2.4.0)
+    powerpack (0.1.2)
     puma (3.11.4)
     rack (2.0.5)
     rack-cors (1.0.2)
@@ -109,10 +115,20 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
+    rainbow (3.0.0)
     rake (12.3.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
+    rubocop (0.57.2)
+      jaro_winkler (~> 1.5.1)
+      parallel (~> 1.10)
+      parser (>= 2.5)
+      powerpack (~> 0.1)
+      rainbow (>= 2.2.2, < 4.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (~> 1.0, >= 1.0.1)
+    ruby-progressbar (1.9.0)
     ruby_dep (1.5.0)
     spring (2.0.2)
       activesupport (>= 4.2)
@@ -130,6 +146,7 @@ GEM
     thread_safe (0.3.6)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
+    unicode-display_width (1.4.0)
     websocket-driver (0.7.0)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.3)
@@ -144,6 +161,7 @@ DEPENDENCIES
   puma (~> 3.11)
   rack-cors
   rails (~> 5.2.0)
+  rubocop
   spring
   spring-watcher-listen (~> 2.0.0)
 

bin/rails

@@ -1,6 +1,6 @@
 #!/usr/bin/env ruby
 begin
-  load File.expand_path('../spring', __FILE__)
+  load File.expand_path('spring', __dir__)
 rescue LoadError => e
   raise unless e.message.include?('spring')
 end

bin/rake

@@ -1,6 +1,6 @@
 #!/usr/bin/env ruby
 begin
-  load File.expand_path('../spring', __FILE__)
+  load File.expand_path('spring', __dir__)
 rescue LoadError => e
   raise unless e.message.include?('spring')
 end

bin/spring

@@ -8,7 +8,7 @@ unless defined?(Spring)
   require 'bundler'
 
   lockfile = Bundler::LockfileParser.new(Bundler.default_lockfile.read)
-  spring = lockfile.specs.detect { |spec| spec.name == "spring" }
+  spring = lockfile.specs.detect { |spec| spec.name == 'spring' }
   if spring
     Gem.use_paths Gem.dir, Bundler.bundle_path.to_s, *Gem.path
     gem 'spring', spring.version

config/application.rb

@@ -1,15 +1,15 @@
 require_relative 'boot'
 
-require "rails"
+require 'rails'
 # Pick the frameworks you want:
-require "active_model/railtie"
-require "active_job/railtie"
+require 'active_model/railtie'
+require 'active_job/railtie'
 # require "active_record/railtie"
 # require "active_storage/engine"
-require "action_controller/railtie"
-require "action_mailer/railtie"
-require "action_view/railtie"
-require "action_cable/engine"
+require 'action_controller/railtie'
+require 'action_mailer/railtie'
+require 'action_view/railtie'
+require 'action_cable/engine'
 # require "sprockets/railtie"
 # require "rails/test_unit/railtie"
 

config/environments/development.rb

@@ -35,7 +35,6 @@
   # Print deprecation notices to the Rails logger.
   config.active_support.deprecation = :log
 
-
   # Raises error for missing translations
   # config.action_view.raise_on_missing_translations = true
 

config/environments/production.rb

@@ -42,7 +42,7 @@
   config.log_level = :debug
 
   # 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
@@ -71,7 +71,7 @@
   # require 'syslog/logger'
   # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new 'app-name')
 
-  if ENV["RAILS_LOG_TO_STDOUT"].present?
+  if ENV['RAILS_LOG_TO_STDOUT'].present?
     logger           = ActiveSupport::Logger.new(STDOUT)
     logger.formatter = config.log_formatter
     config.logger    = ActiveSupport::TaggedLogging.new(logger)

config/puma.rb

@@ -4,16 +4,16 @@
 # 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.
 #
-threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
+threads_count = ENV.fetch('RAILS_MAX_THREADS') { 5 }
 threads threads_count, threads_count
 
 # 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 number of `workers` to boot in clustered mode.
 # Workers are forked webserver processes. If using threads and workers together