adhere to rubocop guidelines

config/application.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require_relative 'boot'
 
 require 'rails/all'
@@ -13,12 +15,16 @@ module Greenlight
     # -- all .rb files in that directory are automatically loaded.
 
     # Use custom error routes.
-    config.exceptions_app = self.routes
+    config.exceptions_app = routes
 
     config.loadbalanced_configuration = (ENV["USE_LOADBALANCED_CONFIGURATION"] == "true")
 
     # Setup BigBlueButton configuration.
-    unless config.loadbalanced_configuration
+    if config.loadbalanced_configuration
+      # Fetch credentials from a loadbalancer based on provider.
+      config.loadbalancer_endpoint = ENV["LOADBALANCER_ENDPOINT"]
+      config.loadbalancer_secret = ENV["LOADBALANCER_SECRET"]
+    else
       # Default credentials (test-install.blindsidenetworks.com/bigbluebutton).
       config.bigbluebutton_endpoint_default = "http://test-install.blindsidenetworks.com/bigbluebutton/api/"
       config.bigbluebutton_secret_default = "8cd8ef52e8e101574e400365b55e11a6"
@@ -35,10 +41,6 @@ module Greenlight
 
       # Fix endpoint format if required.
       config.bigbluebutton_endpoint += "api/" unless config.bigbluebutton_endpoint.ends_with?('api/')
-    else
-      # Fetch credentials from a loadbalancer based on provider.
-      config.loadbalancer_endpoint = ENV["LOADBALANCER_ENDPOINT"]
-      config.loadbalancer_secret = ENV["LOADBALANCER_SECRET"]
     end
 
     # Determine if GreenLight should allow non-omniauth signup/login.

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
+
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
@@ -18,7 +20,7 @@ Rails.application.configure do
 
     config.cache_store = :memory_store
     config.public_file_server.headers = {
-      'Cache-Control' => 'public, max-age=172800'
+      'Cache-Control' => 'public, max-age=172800',
     }
   else
     config.action_controller.perform_caching = false

config/environments/production.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
@@ -47,7 +49,7 @@ Rails.application.configure do
   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
@@ -85,9 +87,6 @@ Rails.application.configure do
   config.active_record.dump_schema_after_migration = false
 
   # Set the relative url root for deployment to a subdirectory.
-  if ENV['RELATIVE_URL_ROOT'].present?
-    config.relative_url_root = ENV['RELATIVE_URL_ROOT']
-  else
-    config.relative_url_root = "/"
-  end
+  config.relative_url_root = "/"
+  config.relative_url_root = ENV['RELATIVE_URL_ROOT'] if ENV['RELATIVE_URL_ROOT'].present?
 end

config/environments/test.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
@@ -15,7 +17,7 @@ Rails.application.configure do
   # Configure public file server for tests with Cache-Control for performance.
   config.public_file_server.enabled = true
   config.public_file_server.headers = {
-    'Cache-Control' => 'public, max-age=3600'
+    'Cache-Control' => 'public, max-age=3600',
   }
 
   # Show full error reports and disable caching.

config/initializers/application_controller_renderer.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # ActiveSupport::Reloader.to_prepare do

config/initializers/assets.rb

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

@@ -1,3 +1,5 @@
+# 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 +1,5 @@
+# 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/html5.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Send a request to check if the HTML5 client is enabled on the BigBlueButton server.
 uri = URI.parse(Rails.configuration.bigbluebutton_endpoint.gsub('bigbluebutton/api', 'html5client/check'))
 res = Net::HTTP.get_response(uri)

config/initializers/inflections.rb

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

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # List of supported Omniauth providers.
 Rails.application.config.providers = [:google, :twitter]
 
@@ -10,8 +12,8 @@ Rails.application.config.middleware.use OmniAuth::Builder do
   provider :twitter, ENV['TWITTER_ID'], ENV['TWITTER_SECRET']
 
   provider :google_oauth2, ENV['GOOGLE_OAUTH2_ID'], ENV['GOOGLE_OAUTH2_SECRET'],
-    scope: ['profile', 'email'],
+    scope: %w(profile email),
     access_type: 'online',
     name: 'google',
     hd: ENV['GOOGLE_OAUTH2_HD'].blank? ? nil : ENV['GOOGLE_OAUTH2_HD']
-end
+end

config/initializers/session_store.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 Rails.application.config.session_store :cookie_store, key: '_greenlight-2_0_session'

config/initializers/terms.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Load terms and conditions.
 
 terms = "#{Rails.root}/config/terms.txt"

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

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

@@ -1,5 +1,6 @@
-Rails.application.routes.draw do
+# frozen_string_literal: true
 
+Rails.application.routes.draw do
   # Error routes.
   match '/404', to: 'errors#not_found', via: :all
   match '/422', to: 'errors#unprocessable', via: :all
@@ -15,7 +16,7 @@ Rails.application.routes.draw do
 
     # Handles login of greenlight provider accounts.
     post '/login',  to: 'sessions#create', as: :create_session
-  
+
     # Log the user out of the session.
     get '/logout', to: 'sessions#destroy'
 
@@ -39,7 +40,7 @@ Rails.application.routes.draw do
     post '/start', to: 'rooms#start', as: :start_room
     get '/logout', to: 'rooms#logout', as: :logout_room
     post '/home', to: 'rooms#home', as: :make_home
-    
+
     # Mange recordings.
     scope '/:record_id' do
       post '/', to: 'rooms#update_recording', as: :update_recording

config/spring.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 %w(
   .ruby-version
   .rbenv-vars