Do not autocreate directory for new user/orgs (#4828) (#4849)

models/org.go

 		return fmt.Errorf("insert team-user relation: %v", err)
 	}
 
-	if err = os.MkdirAll(UserPath(org.Name), os.ModePerm); err != nil {
-		return fmt.Errorf("create directory: %v", err)
-	}
-
 	return sess.Commit()
 }
 

models/user.go

 
 	if _, err = sess.Insert(u); err != nil {
 		return err
-	} else if err = os.MkdirAll(UserPath(u.Name), os.ModePerm); err != nil {
-		return err
 	}
 
 	return sess.Commit()
 		return fmt.Errorf("Delete repository wiki local copy: %v", err)
 	}
 
-	return os.Rename(UserPath(u.Name), UserPath(newUserName))
+	// Do not fail if directory does not exist
+	if err = os.Rename(UserPath(u.Name), UserPath(newUserName)); err != nil && !os.IsNotExist(err) {
+		return fmt.Errorf("Rename user directory: %v", err)
+	}
+
+	return nil
 }
 
 // checkDupEmail checks whether there are the same email with the user