skylight: use Sinatra support from skylight gem

This hasn't been merged in yet, so use my fork for now.

Gemfile

@@ -20,7 +20,8 @@ gem 'bunny',           '~> 0.8.0'
 gem 'dalli'
 gem 'pry'
 gem 'metriks',         '0.9.9.5'
-gem 'skylight'
+
+gem 'skylight', github: 'henrikhodne/skylight-ruby', branch: 'sinatra-support'
 
 group :test do
   gem 'rspec',         '~> 2.13'

Gemfile.lock

@@ -7,6 +7,14 @@ GIT
       hashie (>= 1.1.0)
       uuidtools
 
+GIT
+  remote: git://github.com/henrikhodne/skylight-ruby.git
+  revision: 44904fe824e202deb6389fb9b547bd4345abdc2d
+  branch: sinatra-support
+  specs:
+    skylight (0.3.10)
+      activesupport (>= 3.0.0)
+
 GIT
   remote: git://github.com/rack/rack-contrib.git
   revision: 951760b1710634623ebbccef8d65df9139bb41c2
@@ -249,8 +257,6 @@ GEM
       rack-test
       sinatra (~> 1.4.0)
       tilt (~> 1.3)
-    skylight (0.3.10)
-      activesupport (>= 3.0.0)
     slop (3.4.7)
     sprockets (2.2.2)
       hike (~> 1.2)
@@ -299,7 +305,7 @@ DEPENDENCIES
   sentry-raven!
   sinatra
   sinatra-contrib
-  skylight
+  skylight!
   travis-api!
   travis-core!
   travis-sidekiqs!

lib/travis/api/app/base.rb

@@ -8,7 +8,8 @@ class Travis::Api::App
     register Extensions::SmartConstants
 
     if ENV['SKYLIGHT_APPLICATION']
-      register :skylight
+      require 'skylight'
+      register Skylight::Sinatra
     end
 
     error NotImplementedError do

lib/travis/api/app/extensions/skylight.rb

@@ -1,31 +0,0 @@
-require 'logger'
-require 'skylight'
-require 'travis/api/app'
-
-class Travis::Api::App
-  module Extensions
-    module Skylight
-      def self.registered(base)
-        config = ::Skylight::Config.load(nil, ENV['RACK_ENV'], ENV)
-        config['root'] = base.root
-        config['agent.sockfile_path'] = File.join(config['root'], 'tmp')
-        config.logger = Logger.new(STDOUT)
-        config.validate!
-
-        ::Skylight.start!(config)
-
-        base.use ::Skylight::Middleware
-      end
-
-      def route(verb, path, *)
-        condition do
-          trace = ::Skylight::Instrumenter.instance.current_trace
-          endpoint = settings.name.to_s.split("::", 5).last.gsub(/::/, "/").downcase
-          trace.endpoint = "#{verb} /#{endpoint}#{path}"
-        end
-
-        super
-      end
-    end
-  end
-end