old_contents: # -*- coding: utf-8 -*-
  # vim: tabstop=4 shiftwidth=4 softtabstop=4
  #
  # Copyright (C) 2017-2018 GEM Foundation
  #
  # OpenQuake is free software: you can redistribute it and/or modify it
  # under the terms of the GNU Affero General Public License as published
  # by the Free Software Foundation, either version 3 of the License, or
  # (at your option) any later version.
  #
  # OpenQuake is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  # GNU Affero General Public License for more details.
  #
  # You should have received a copy of the GNU Affero General Public License
  # along with OpenQuake.  If not, see <http://www.gnu.org/licenses/>.
  import sys
  import getpass
  from openquake.baselib import sap, config, workerpool
  
  
  @sap.Script
  def workers(cmd):
      """
      start/stop/restart the workers, or return their status
      """
      if config.dbserver.multi_user and getpass.getuser() != 'openquake':
          sys.exit('oq workers only works in single user mode')
  
      master = workerpool.WorkerMaster(**config.zworkers)
      print(getattr(master, cmd)())
  
  workers.arg('cmd', 'command', choices='start stop status restart'.split())
  
new_contents: # -*- coding: utf-8 -*-
  # vim: tabstop=4 shiftwidth=4 softtabstop=4
  #
  # Copyright (C) 2017-2018 GEM Foundation
  #
  # OpenQuake is free software: you can redistribute it and/or modify it
  # under the terms of the GNU Affero General Public License as published
  # by the Free Software Foundation, either version 3 of the License, or
  # (at your option) any later version.
  #
  # OpenQuake is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  # GNU Affero General Public License for more details.
  #
  # You should have received a copy of the GNU Affero General Public License
  # along with OpenQuake.  If not, see <http://www.gnu.org/licenses/>.
  import sys
  import getpass
  from openquake.baselib import sap, config, workerpool
  
  
  @sap.Script
  def workers(cmd):
      """
      start/stop/restart the workers, or return their status
      """
      if config.dbserver.multi_user and getpass.getuser() != 'openquake':
          sys.exit('oq workers only works in single user mode')
  
      master = workerpool.WorkerMaster(config.zmq.master_host,
                                       **config.zworkers)
      print(getattr(master, cmd)())
  
  
  workers.arg('cmd', 'command', choices='start stop status restart'.split())
  
subject: Fix demos on Travis [demos]