220     while not clear:

   220     try:

   221         loop += 1

   221         while not clear:

   222         if loop > 100:

   222             loop += 1

   223             # XXX basic protection against infinite loop, make it better.

   223             if loop > 100:

   224             raise error.ProgrammingError("Too many auto upgrade loops")

   224                 # XXX basic protection against infinite loop, make it better.

   225         clear = True

   225                 raise error.ProgrammingError("Too many auto upgrade loops")

   226         for get_action in AUTO_UPGRADE_ACTIONS:

   226             clear = True

   227             action = get_action(repo)

   227             for get_action in AUTO_UPGRADE_ACTIONS:

   228             if action is not None:

   228                 action = get_action(repo)

   229                 clear = False

   229                 if action is not None:

   230                 with repo.wlock(wait=False), repo.lock(wait=False):

   230                     clear = False

   231                     action = get_action(repo)

   231                     with repo.wlock(wait=False), repo.lock(wait=False):

   232                     if action is not None:

   232                         action = get_action(repo)

   233                         action()

   233                         if action is not None:

   234                     repo = maker_func()

   234                             action()

   235                         repo = maker_func()

   236     except error.LockError:

   237         # if we cannot get the lock, ignore the auto-upgrade attemps and

   238         # proceed. We might want to make this behavior configurable in the

   239         # future.

   240         pass

   241