diff --git a/app/controllers/welcome_controller.rb b/app/controllers/welcome_controller.rb
index 44d4fb12..91cba4ab 100644
--- a/app/controllers/welcome_controller.rb
+++ b/app/controllers/welcome_controller.rb
@@ -150,13 +150,8 @@ class WelcomeController < ApplicationController
         shixun.update_column(:git_url, g.project(shixun.gpid).path_with_namespace)
         local_git_path = local_shixun.local_giturl.split('/').last if local_shixun.local_giturl.present?
         new_giturl = "http://educoder:xinhu1ji2qu3@"+g.project(shixun.gpid).http_url_to_repo.split('//').last
-        if system("cd tmp/repositories/#{local_git_path};")
-          system("git remote remove origin")
-          system("git remote add origin #{new_giturl}")
-          system("git add .")
-          system("git commit -m '..'")
-          system("git push origin master")
-        end
+        system("cd tmp/repositories/#{local_git_path};git remote remove origin;git remote add origin #{new_giturl};
+                  git add .;git commit -m '..';git push origin master")
 
         #  http://Hjqreturn:xinhu1ji2qu3@bdgit.educoder.net/Hjqreturn/pgfqe6ch8.git (fetch)