Remove unneeded dependencies & files

.rubocop.yml

@@ -4,6 +4,7 @@ AllCops:
     - bin/*
     - db/schema.rb
     - db/migrate/*
+    - node_modules/**/*
     - test/test_helper.rb
     - vendor/**/*
 

Gemfile

@@ -13,14 +13,10 @@ gem 'rails', '5.1.1'
 
 gem 'bootstrap', '~> 4.0.0.alpha3'
 gem 'chartkick'
-gem 'coffee-rails', '~> 4.2.0'
 gem 'friendly_id'
-gem 'jquery-rails'
-gem 'nokogiri'
 gem 'pg', '~> 0.18'
 gem 'puma'
 gem 'slim-rails'
-gem 'sprockets', '~> 4.0.0.beta2'
 gem 'turbolinks'
 gem 'uglifier', '>= 1.3.0'
 

Gemfile.lock

@@ -50,13 +50,6 @@ GEM
     builder (3.2.3)
     chartkick (2.2.4)
     coderay (1.1.1)
-    coffee-rails (4.2.1)
-      coffee-script (>= 2.2.0)
-      railties (>= 4.0.0, < 5.2.x)
-    coffee-script (2.4.1)
-      coffee-script-source
-      execjs
-    coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
     dotenv (2.2.1)
     dotenv-rails (2.2.1)
@@ -108,10 +101,6 @@ GEM
       rubydns (~> 0.8.5)
       thor (~> 0.19)
       uuid (~> 2.3)
-    jquery-rails (4.3.1)
-      rails-dom-testing (>= 1, < 3)
-      railties (>= 4.2.0)
-      thor (>= 0.14, < 2.0)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
@@ -206,7 +195,7 @@ GEM
     slop (3.6.0)
     spring (2.0.2)
       activesupport (>= 4.2)
-    sprockets (4.0.0.beta4)
+    sprockets (3.7.1)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.2.0)
@@ -245,16 +234,13 @@ PLATFORMS
 DEPENDENCIES
   bootstrap (~> 4.0.0.alpha3)
   chartkick
-  coffee-rails (~> 4.2.0)
   dotenv-rails
   friendly_id
   guard
   guard-bundler
   guard-rubocop
   invoker
-  jquery-rails
   newrelic_rpm
-  nokogiri
   pg (~> 0.18)
   puma
   rack-toolbar
@@ -263,7 +249,6 @@ DEPENDENCIES
   rubocop (~> 0.47.1)
   slim-rails
   spring
-  sprockets (~> 4.0.0.beta2)
   terminal-notifier-guard
   turbolinks
   uglifier (>= 1.3.0)

app/assets/javascripts/analytics.js

@@ -0,0 +1,6 @@
+document.addEventListener('turbolinks:load', function(event) {
+  if (typeof ga === 'function') {
+    ga('set', 'location', event.data.url);
+    return ga('send', 'pageview');
+  }
+});

app/assets/javascripts/application.js

@@ -10,8 +10,6 @@
 // Read Sprockets README (https://github.com/rails/sprockets#sprockets-directives) for details
 // about supported directives.
 //
-//= require jquery2
-//= require jquery_ujs
 //= require turbolinks
 //= require highcharts
 //= require chartkick