expose project name

app/models/build.rb

@@ -25,7 +25,7 @@ class Build < ActiveRecord::Base
   serialize :push_data
 
   attr_accessible :project_id, :ref, :sha, :before_sha,
-    :status, :finished_at, :trace, :started_at, :push_data, :runner_id
+    :status, :finished_at, :trace, :started_at, :push_data, :runner_id, :project_name
 
   validates :sha, presence: true
   validates :ref, presence: true
@@ -157,4 +157,8 @@ def timeout
   def allow_git_fetch
     project.allow_git_fetch
   end
+
+  def project_name
+    project.name
+  end
 end

lib/api/entities.rb

@@ -1,7 +1,7 @@
 module API
   module Entities
     class Build < Grape::Entity
-      expose :id, :commands, :path, :ref, :sha, :project_id, :repo_url, :before_sha, :timeout, :allow_git_fetch
+      expose :id, :commands, :path, :ref, :sha, :project_id, :repo_url, :before_sha, :timeout, :allow_git_fetch, :project_name
     end
 
     class Runner < Grape::Entity