Add status badge for MR

app/models/gitlab_ci_service.rb

@@ -32,4 +32,8 @@ class GitlabCiService < Service
     hook.url = [project_url, "/build", "?token=#{token}"].join("")
     hook.save
   end
+
+  def commit_badge_path sha
+    project_url + "/status?sha=#{sha}"
+  end
 end

app/models/project.rb

@@ -188,4 +188,8 @@ class Project < ActiveRecord::Base
   def services
     [gitlab_ci_service].compact
   end
+
+  def gitlab_ci?
+    gitlab_ci_service && gitlab_ci_service.active
+  end
 end