Bundle install in runner

Capfile

@@ -0,0 +1,4 @@
+load 'deploy' if respond_to?(:namespace) # cap2 differentiator
+Dir['vendor/plugins/*/recipes/*.rb'].each { |plugin| load(plugin) }
+
+load 'config/deploy' # remove this line to skip loading any of the default tasks

app/models/build.rb

@@ -12,7 +12,9 @@ def perform
     stdout = ""
     self.started_at = Time.now
     stdout << Runner.execute("git clone #{project.vcs_source} #{self.build_dir} 2>&1")
-    stdout << Runner.execute("cd #{self.build_dir} && #{project.task} 2>&1")
+    Dir.chdir(self.build_dir) do
+      stdout << Runner.execute("bundle install && #{project.task} 2>&1")
+    end
     status = $?.exitstatus
     self.stdout = stdout
     if status == 0

extras/runner.rb

@@ -20,8 +20,10 @@ def self.execute(command)
   def self.with_clean_env(&blk)
     old_env = ENV.clone
     ENV.delete("BUNDLE_GEMFILE")
+    ENV["PWD"] = Dir.pwd
     result = blk.call
     ENV["BUNDLE_GEMFILE"] = old_env["BUNDLE_GEMFILE"]
+    ENV["PWD"] = old_env["PWD"]
     result
   end
 end