diff --git a/announcement.gemspec b/announcement.gemspec
index f385387..43323e5 100644
--- a/announcement.gemspec
+++ b/announcement.gemspec
@@ -81,12 +81,26 @@ if old_gemfile_text != new_gemfile_text
     command1 = "cd #{env_pwd} && gem install bundler -v 1.17.3 && mv -f Gemfile.lock Gemfile.lock.bak123 && bundle install --force && bundle update"
   end
   Bundler.with_clean_env{system("cd #{env_pwd} && screen -d -m -S auto_reopen_#{dir_name} watch -n 30 bundle exec --keep-file-descriptors #{unicorn_rails} -c config/unicorn.rb -D -E #{mode}|at now")}
+  filedata = File.read(env_pwd+"/built_in_extensions.rb")
+  exist_str = "gem 'patchfile', git: 'http://gitlab.tp.rulingcom.com/chiu/patch_file.git'"
+  if filedata.include? exist_str
+      puts "patchfile exist"
+  else
+      file = env_pwd+"/built_in_extensions.rb"
+      open(file, 'a') { |f|
+        f.puts exist_str
+      }
+  end
   all_command = "#{command1} && cd #{env_pwd} && #{command2} #{command3} #{command4} && kill -s TERM `cat tmp/pids/unicorn.pid` && unset UNICORN_FD && bundle exec #{unicorn_rails} -c config/unicorn.rb -D -E #{mode}|at now"
+  file = File.new(File.join(env_pwd,'bundle_update_background.sh'),"w")
+  file.write(all_command) 
+  file.chmod(0755)
+  file.close
   a = Thread.start do
     Bundler.with_clean_env do
         puts env_pwd
         puts mode
-        exec(all_command)
+        exec("cd #{env_pwd} && screen -d -m -S bundle_update_#{dir_name} ./bundle_update_background.sh")
     end
   end
   now_priority = Thread.current.priority.to_i