code: def update(cwd, rev, force=False, user=None):
      '''
      Update to a given revision
  
      cwd
          The path to the Mercurial repository
  
      rev
          The revision to update to
  
      force : False
          Force an update
  
      user : None
          Run hg as a user other than what the minion runs as
  
      CLI Example:
  
      .. code-block:: bash
  
          salt devserver1 hg.update /path/to/repo somebranch
      '''
      cmd = ['hg', 'update', '{0}'.format(rev)]
      if force:
          cmd.append('-C')
  
      ret = __salt__['cmd.run_all'](cmd, cwd=cwd, runas=user, python_shell=False)
      if ret['retcode'] != 0:
          raise CommandExecutionError(
              'Hg command failed: {0}'.format(ret.get('stderr', ret['stdout']))
          )
  
      return ret['stdout'f update(cwd, rev, force=False, user=None):
      '''
      Update to a given revision
  
      cwd
          The path to the Mercurial repository
  
      rev
          The revision to update to
  
      force : False
          Force an update
  
      user : None
          Run hg as a user other than what the minion runs as
  
      CLI Example:
  
      .. code-block:: bash
  
          salt devserver1 hg.update /path/to/repo somebranch
      '''
      cmd = ['hg', 'update', '{0}'.format(rev)]
      if force:
          cmd.append('-C')
  
      ret = __salt__['cmd.run_all'](cmd, cwd=cwd, runas=user, python_shell=False)
      if ret['retcode'] != 0:
          raise CommandExecutionError(
              'Hg command failed: {0}'.format(ret.get('stderr', ret['stdout']))
          )
  
      return ret['stdout']
docs: Update to a given revision
  
      cwd
          The path to the Mercurial repository
  
      rev
          The revision to update to
  
      force : False
          Force an update
  
      user : None
          Run hg as a user other than what the minion runs as
  
      CLI Example:
  
      .. code-block:: bash
  
          salt devserver1 hg.update /path/to/repo somebranch