176     # type: (localrepo.localrepository) -> bool

   176     # type: (localrepo.localrepository) -> bool

   177     """True if the internal phase can be used on a repository"""

   177     """True if the internal phase can be used on a repository"""

   178     return requirements.INTERNAL_PHASE_REQUIREMENT in repo.requirements

   178     return requirements.INTERNAL_PHASE_REQUIREMENT in repo.requirements

   179 

   179 

   180 

   180 

   181 def _readroots(repo, phasedefaults=None):

   187 def _readroots(repo, phasedefaults=None):

   182     # type: (localrepo.localrepository, Optional[Phasedefaults]) -> Tuple[Phaseroots, bool]

   188     # type: (localrepo.localrepository, Optional[Phasedefaults]) -> Tuple[Phaseroots, bool]

   183     """Read phase roots from disk

   189     """Read phase roots from disk

   184 

   190 

   185     phasedefaults is a list of fn(repo, roots) callable, which are

   191     phasedefaults is a list of fn(repo, roots) callable, which are

   640     def _retractboundary(self, repo, tr, targetphase, nodes, revs=None):

   646     def _retractboundary(self, repo, tr, targetphase, nodes, revs=None):

   641         # Be careful to preserve shallow-copied values: do not update

   647         # Be careful to preserve shallow-copied values: do not update

   642         # phaseroots values, replace them.

   648         # phaseroots values, replace them.

   643         if revs is None:

   649         if revs is None:

   644             revs = []

   650             revs = []

   646             name = phasenames[targetphase]

   657             name = phasenames[targetphase]

   647             msg = b'this repository does not support the %s phase' % name

   658             msg = b'this repository does not support the %s phase' % name

   648             raise error.ProgrammingError(msg)

   659             raise error.ProgrammingError(msg)

   649 

   660 

   650         repo = repo.unfiltered()

   661         repo = repo.unfiltered()