Switch code coverage reporting to codecov.io

Codecov supports merging of coverage data from multiple builds:
codeclimate/ruby-test-reporter#49

Signed-off-by: Alex Coles <alex@alexbcoles.com>

Gemfile

@@ -166,7 +166,7 @@ group :test do
   gem "shoulda-matchers", '~> 2.5.0'
   gem "json_spec"
   gem "activerecord-tableless", "~> 1.0"
-  gem "codeclimate-test-reporter", :require => nil
+  gem 'codecov', require: nil
   gem 'equivalent-xml', '~> 0.5.1'
 end
 

Gemfile.lock

@@ -138,8 +138,10 @@ GEM
       activesupport (>= 3.0)
     cocaine (0.5.4)
       climate_control (>= 0.0.3, < 1.0)
-    codeclimate-test-reporter (0.1.1)
-      simplecov (>= 0.7.1, < 1.0.0)
+    codecov (0.0.6)
+      json
+      simplecov
+      url
     coderay (1.0.9)
     coercible (1.0.0)
       descendants_tracker (~> 0.0.1)
@@ -456,6 +458,7 @@ GEM
       kgio (~> 2.6)
       rack
       raindrops (~> 0.7)
+    url (0.3.2)
     virtus (1.0.4)
       axiom-types (~> 0.1)
       coercible (~> 1.0)
@@ -484,7 +487,7 @@ DEPENDENCIES
   capybara-select2!
   carrierwave (~> 0.10.0)
   cocaine
-  codeclimate-test-reporter
+  codecov
   coderay (~> 1.0.9)
   color-tools (~> 1.3.0)
   cucumber-rails (~> 1.4.2)

spec/spec_helper.rb

@@ -27,10 +27,12 @@
 #++
 
 require 'rubygems'
+require 'simplecov'
+SimpleCov.start
+
 if ENV['CI'] == 'true'
-  # we are running on a CI server, report coverage to code climate
-  require 'codeclimate-test-reporter'
-  CodeClimate::TestReporter.start
+  require 'codecov'
+  SimpleCov.formatter = SimpleCov::Formatter::Codecov
 end
 
 # This file is copied to spec/ when you run 'rails generate rspec:install'

test/test_helper.rb

@@ -29,10 +29,12 @@
 
 ENV['RAILS_ENV'] = 'test'
 
+require 'simplecov'
+SimpleCov.start
+
 if ENV['CI'] == 'true'
-  # we are running on a CI server, report coverage to code climate
-  require 'codeclimate-test-reporter'
-  CodeClimate::TestReporter.start
+  require 'codecov'
+  SimpleCov.formatter = SimpleCov::Formatter::Codecov
 end
 
 require File.expand_path('../../config/environment', __FILE__)