tree-manifest: allow `debugupgraderepo` to run on tree manifest repo

There does not seems to be anything wrong with running the current logic on
them. So we remove the limitation.

mercurial/upgrade_utils/actions.py

@@ -1,1124 +1,1122 b''
 # upgrade.py - functions for in place upgrade of Mercurial repository
 #
 # Copyright (c) 2016-present, Gregory Szorc
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 
 from ..i18n import _
 from .. import (
     error,
     localrepo,
     pycompat,
     requirements,
     revlog,
     util,
 )
 
 from ..utils import compression
 
 if pycompat.TYPE_CHECKING:
     from typing import (
         List,
         Type,
     )
 
 
 # list of requirements that request a clone of all revlog if added/removed
 RECLONES_REQUIREMENTS = {
     requirements.GENERALDELTA_REQUIREMENT,
     requirements.SPARSEREVLOG_REQUIREMENT,
     requirements.REVLOGV2_REQUIREMENT,
     requirements.CHANGELOGV2_REQUIREMENT,
 }
 
 
 def preservedrequirements(repo):
     preserved = {
         requirements.SHARED_REQUIREMENT,
         requirements.NARROW_REQUIREMENT,
     }
     return preserved & repo.requirements
 
 
 FORMAT_VARIANT = b'deficiency'
 OPTIMISATION = b'optimization'
 
 
 class improvement:
     """Represents an improvement that can be made as part of an upgrade."""
 
     ### The following attributes should be defined for each subclass:
 
     # Either ``FORMAT_VARIANT`` or ``OPTIMISATION``.
     # A format variant is where we change the storage format. Not all format
     # variant changes are an obvious problem.
     # An optimization is an action (sometimes optional) that
     # can be taken to further improve the state of the repository.
     type = None
 
     # machine-readable string uniquely identifying this improvement. it will be
     # mapped to an action later in the upgrade process.
     name = None
 
     # message intended for humans explaining the improvement in more detail,
     # including the implications of it ``FORMAT_VARIANT`` types, should be
     # worded
     # in the present tense.
     description = None
 
     # message intended for humans explaining what an upgrade addressing this
     # issue will do. should be worded in the future tense.
     upgrademessage = None
 
     # value of current Mercurial default for new repository
     default = None
 
     # Message intended for humans which will be shown post an upgrade
     # operation when the improvement will be added
     postupgrademessage = None
 
     # Message intended for humans which will be shown post an upgrade
     # operation in which this improvement was removed
     postdowngrademessage = None
 
     # By default we assume that every improvement touches requirements and all revlogs
 
     # Whether this improvement touches filelogs
     touches_filelogs = True
 
     # Whether this improvement touches manifests
     touches_manifests = True
 
     # Whether this improvement touches changelog
     touches_changelog = True
 
     # Whether this improvement changes repository requirements
     touches_requirements = True
 
     # Whether this improvement touches the dirstate
     touches_dirstate = False
 
     # Can this action be run on a share instead of its mains repository
     compatible_with_share = False
 
 
 allformatvariant = []  # type: List[Type['formatvariant']]
 
 
 def registerformatvariant(cls):
     allformatvariant.append(cls)
     return cls
 
 
 class formatvariant(improvement):
     """an improvement subclass dedicated to repository format"""
 
     type = FORMAT_VARIANT
 
     @staticmethod
     def fromrepo(repo):
         """current value of the variant in the repository"""
         raise NotImplementedError()
 
     @staticmethod
     def fromconfig(repo):
         """current value of the variant in the configuration"""
         raise NotImplementedError()
 
 
 class requirementformatvariant(formatvariant):
     """formatvariant based on a 'requirement' name.
 
     Many format variant are controlled by a 'requirement'. We define a small
     subclass to factor the code.
     """
 
     # the requirement that control this format variant
     _requirement = None
 
     @staticmethod
     def _newreporequirements(ui):
         return localrepo.newreporequirements(
             ui, localrepo.defaultcreateopts(ui)
         )
 
     @classmethod
     def fromrepo(cls, repo):
         assert cls._requirement is not None
         return cls._requirement in repo.requirements
 
     @classmethod
     def fromconfig(cls, repo):
         assert cls._requirement is not None
         return cls._requirement in cls._newreporequirements(repo.ui)
 
 
 @registerformatvariant
 class fncache(requirementformatvariant):
     name = b'fncache'
 
     _requirement = requirements.FNCACHE_REQUIREMENT
 
     default = True
 
     description = _(
         b'long and reserved filenames may not work correctly; '
         b'repository performance is sub-optimal'
     )
 
     upgrademessage = _(
         b'repository will be more resilient to storing '
         b'certain paths and performance of certain '
         b'operations should be improved'
     )
 
 
 @registerformatvariant
 class dirstatev2(requirementformatvariant):
     name = b'dirstate-v2'
     _requirement = requirements.DIRSTATE_V2_REQUIREMENT
 
     default = False
 
     description = _(
         b'version 1 of the dirstate file format requires '
         b'reading and parsing it all at once.\n'
         b'Version 2 has a better structure,'
         b'better information and lighter update mechanism'
     )
 
     upgrademessage = _(b'"hg status" will be faster')
 
     touches_filelogs = False
     touches_manifests = False
     touches_changelog = False
     touches_requirements = True
     touches_dirstate = True
     compatible_with_share = True
 
 
 @registerformatvariant
 class dirstatetrackedkey(requirementformatvariant):
     name = b'tracked-hint'
     _requirement = requirements.DIRSTATE_TRACKED_HINT_V1
 
     default = False
 
     description = _(
         b'Add a small file to help external tooling that watch the tracked set'
     )
 
     upgrademessage = _(
         b'external tools will be informated of potential change in the tracked set'
     )
 
     touches_filelogs = False
     touches_manifests = False
     touches_changelog = False
     touches_requirements = True
     touches_dirstate = True
     compatible_with_share = True
 
 
 @registerformatvariant
 class dotencode(requirementformatvariant):
     name = b'dotencode'
 
     _requirement = requirements.DOTENCODE_REQUIREMENT
 
     default = True
 
     description = _(
         b'storage of filenames beginning with a period or '
         b'space may not work correctly'
     )
 
     upgrademessage = _(
         b'repository will be better able to store files '
         b'beginning with a space or period'
     )
 
 
 @registerformatvariant
 class generaldelta(requirementformatvariant):
     name = b'generaldelta'
 
     _requirement = requirements.GENERALDELTA_REQUIREMENT
 
     default = True
 
     description = _(
         b'deltas within internal storage are unable to '
         b'choose optimal revisions; repository is larger and '
         b'slower than it could be; interaction with other '
         b'repositories may require extra network and CPU '
         b'resources, making "hg push" and "hg pull" slower'
     )
 
     upgrademessage = _(
         b'repository storage will be able to create '
         b'optimal deltas; new repository data will be '
         b'smaller and read times should decrease; '
         b'interacting with other repositories using this '
         b'storage model should require less network and '
         b'CPU resources, making "hg push" and "hg pull" '
         b'faster'
     )
 
 
 @registerformatvariant
 class sharesafe(requirementformatvariant):
     name = b'share-safe'
     _requirement = requirements.SHARESAFE_REQUIREMENT
 
     default = True
 
     description = _(
         b'old shared repositories do not share source repository '
         b'requirements and config. This leads to various problems '
         b'when the source repository format is upgraded or some new '
         b'extensions are enabled.'
     )
 
     upgrademessage = _(
         b'Upgrades a repository to share-safe format so that future '
         b'shares of this repository share its requirements and configs.'
     )
 
     postdowngrademessage = _(
         b'repository downgraded to not use share safe mode, '
         b'existing shares will not work and needs to'
         b' be reshared.'
     )
 
     postupgrademessage = _(
         b'repository upgraded to share safe mode, existing'
         b' shares will still work in old non-safe mode. '
         b'Re-share existing shares to use them in safe mode'
         b' New shares will be created in safe mode.'
     )
 
     # upgrade only needs to change the requirements
     touches_filelogs = False
     touches_manifests = False
     touches_changelog = False
     touches_requirements = True
 
 
 @registerformatvariant
 class sparserevlog(requirementformatvariant):
     name = b'sparserevlog'
 
     _requirement = requirements.SPARSEREVLOG_REQUIREMENT
 
     default = True
 
     description = _(
         b'in order to limit disk reading and memory usage on older '
         b'version, the span of a delta chain from its root to its '
         b'end is limited, whatever the relevant data in this span. '
         b'This can severly limit Mercurial ability to build good '
         b'chain of delta resulting is much more storage space being '
         b'taken and limit reusability of on disk delta during '
         b'exchange.'
     )
 
     upgrademessage = _(
         b'Revlog supports delta chain with more unused data '
         b'between payload. These gaps will be skipped at read '
         b'time. This allows for better delta chains, making a '
         b'better compression and faster exchange with server.'
     )
 
 
 @registerformatvariant
 class persistentnodemap(requirementformatvariant):
     name = b'persistent-nodemap'
 
     _requirement = requirements.NODEMAP_REQUIREMENT
 
     default = False
 
     description = _(
         b'persist the node -> rev mapping on disk to speedup lookup'
     )
 
     upgrademessage = _(b'Speedup revision lookup by node id.')
 
 
 @registerformatvariant
 class copiessdc(requirementformatvariant):
     name = b'copies-sdc'
 
     _requirement = requirements.COPIESSDC_REQUIREMENT
 
     default = False
 
     description = _(b'Stores copies information alongside changesets.')
 
     upgrademessage = _(
         b'Allows to use more efficient algorithm to deal with ' b'copy tracing.'
     )
 
     touches_filelogs = False
     touches_manifests = False
 
 
 @registerformatvariant
 class revlogv2(requirementformatvariant):
     name = b'revlog-v2'
     _requirement = requirements.REVLOGV2_REQUIREMENT
     default = False
     description = _(b'Version 2 of the revlog.')
     upgrademessage = _(b'very experimental')
 
 
 @registerformatvariant
 class changelogv2(requirementformatvariant):
     name = b'changelog-v2'
     _requirement = requirements.CHANGELOGV2_REQUIREMENT
     default = False
     description = _(b'An iteration of the revlog focussed on changelog needs.')
     upgrademessage = _(b'quite experimental')
 
     touches_filelogs = False
     touches_manifests = False
 
 
 @registerformatvariant
 class removecldeltachain(formatvariant):
     name = b'plain-cl-delta'
 
     default = True
 
     description = _(
         b'changelog storage is using deltas instead of '
         b'raw entries; changelog reading and any '
         b'operation relying on changelog data are slower '
         b'than they could be'
     )
 
     upgrademessage = _(
         b'changelog storage will be reformated to '
         b'store raw entries; changelog reading will be '
         b'faster; changelog size may be reduced'
     )
 
     @staticmethod
     def fromrepo(repo):
         # Mercurial 4.0 changed changelogs to not use delta chains. Search for
         # changelogs with deltas.
         cl = repo.changelog
         chainbase = cl.chainbase
         return all(rev == chainbase(rev) for rev in cl)
 
     @staticmethod
     def fromconfig(repo):
         return True
 
 
 _has_zstd = (
     b'zstd' in util.compengines
     and util.compengines[b'zstd'].available()
     and util.compengines[b'zstd'].revlogheader()
 )
 
 
 @registerformatvariant
 class compressionengine(formatvariant):
     name = b'compression'
 
     if _has_zstd:
         default = b'zstd'
     else:
         default = b'zlib'
 
     description = _(
         b'Compresion algorithm used to compress data. '
         b'Some engine are faster than other'
     )
 
     upgrademessage = _(
         b'revlog content will be recompressed with the new algorithm.'
     )
 
     @classmethod
     def fromrepo(cls, repo):
         # we allow multiple compression engine requirement to co-exist because
         # strickly speaking, revlog seems to support mixed compression style.
         #
         # The compression used for new entries will be "the last one"
         compression = b'zlib'
         for req in repo.requirements:
             prefix = req.startswith
             if prefix(b'revlog-compression-') or prefix(b'exp-compression-'):
                 compression = req.split(b'-', 2)[2]
         return compression
 
     @classmethod
     def fromconfig(cls, repo):
         compengines = repo.ui.configlist(b'format', b'revlog-compression')
         # return the first valid value as the selection code would do
         for comp in compengines:
             if comp in util.compengines:
                 e = util.compengines[comp]
                 if e.available() and e.revlogheader():
                     return comp
 
         # no valide compression found lets display it all for clarity
         return b','.join(compengines)
 
 
 @registerformatvariant
 class compressionlevel(formatvariant):
     name = b'compression-level'
     default = b'default'
 
     description = _(b'compression level')
 
     upgrademessage = _(b'revlog content will be recompressed')
 
     @classmethod
     def fromrepo(cls, repo):
         comp = compressionengine.fromrepo(repo)
         level = None
         if comp == b'zlib':
             level = repo.ui.configint(b'storage', b'revlog.zlib.level')
         elif comp == b'zstd':
             level = repo.ui.configint(b'storage', b'revlog.zstd.level')
         if level is None:
             return b'default'
         return bytes(level)
 
     @classmethod
     def fromconfig(cls, repo):
         comp = compressionengine.fromconfig(repo)
         level = None
         if comp == b'zlib':
             level = repo.ui.configint(b'storage', b'revlog.zlib.level')
         elif comp == b'zstd':
             level = repo.ui.configint(b'storage', b'revlog.zstd.level')
         if level is None:
             return b'default'
         return bytes(level)
 
 
 def find_format_upgrades(repo):
     """returns a list of format upgrades which can be perform on the repo"""
     upgrades = []
 
     # We could detect lack of revlogv1 and store here, but they were added
     # in 0.9.2 and we don't support upgrading repos without these
     # requirements, so let's not bother.
 
     for fv in allformatvariant:
         if not fv.fromrepo(repo):
             upgrades.append(fv)
 
     return upgrades
 
 
 def find_format_downgrades(repo):
     """returns a list of format downgrades which will be performed on the repo
     because of disabled config option for them"""
 
     downgrades = []
 
     for fv in allformatvariant:
         if fv.name == b'compression':
             # If there is a compression change between repository
             # and config, destination repository compression will change
             # and current compression will be removed.
             if fv.fromrepo(repo) != fv.fromconfig(repo):
                 downgrades.append(fv)
             continue
         # format variant exist in repo but does not exist in new repository
         # config
         if fv.fromrepo(repo) and not fv.fromconfig(repo):
             downgrades.append(fv)
 
     return downgrades
 
 
 ALL_OPTIMISATIONS = []
 
 
 def register_optimization(obj):
     ALL_OPTIMISATIONS.append(obj)
     return obj
 
 
 class optimization(improvement):
     """an improvement subclass dedicated to optimizations"""
 
     type = OPTIMISATION
 
 
 @register_optimization
 class redeltaparents(optimization):
     name = b're-delta-parent'
 
     type = OPTIMISATION
 
     description = _(
         b'deltas within internal storage will be recalculated to '
         b'choose an optimal base revision where this was not '
         b'already done; the size of the repository may shrink and '
         b'various operations may become faster; the first time '
         b'this optimization is performed could slow down upgrade '
         b'execution considerably; subsequent invocations should '
         b'not run noticeably slower'
     )
 
     upgrademessage = _(
         b'deltas within internal storage will choose a new '
         b'base revision if needed'
     )
 
 
 @register_optimization
 class redeltamultibase(optimization):
     name = b're-delta-multibase'
 
     type = OPTIMISATION
 
     description = _(
         b'deltas within internal storage will be recalculated '
         b'against multiple base revision and the smallest '
         b'difference will be used; the size of the repository may '
         b'shrink significantly when there are many merges; this '
         b'optimization will slow down execution in proportion to '
         b'the number of merges in the repository and the amount '
         b'of files in the repository; this slow down should not '
         b'be significant unless there are tens of thousands of '
         b'files and thousands of merges'
     )
 
     upgrademessage = _(
         b'deltas within internal storage will choose an '
         b'optimal delta by computing deltas against multiple '
         b'parents; may slow down execution time '
         b'significantly'
     )
 
 
 @register_optimization
 class redeltaall(optimization):
     name = b're-delta-all'
 
     type = OPTIMISATION
 
     description = _(
         b'deltas within internal storage will always be '
         b'recalculated without reusing prior deltas; this will '
         b'likely make execution run several times slower; this '
         b'optimization is typically not needed'
     )
 
     upgrademessage = _(
         b'deltas within internal storage will be fully '
         b'recomputed; this will likely drastically slow down '
         b'execution time'
     )
 
 
 @register_optimization
 class redeltafulladd(optimization):
     name = b're-delta-fulladd'
 
     type = OPTIMISATION
 
     description = _(
         b'every revision will be re-added as if it was new '
         b'content. It will go through the full storage '
         b'mechanism giving extensions a chance to process it '
         b'(eg. lfs). This is similar to "re-delta-all" but even '
         b'slower since more logic is involved.'
     )
 
     upgrademessage = _(
         b'each revision will be added as new content to the '
         b'internal storage; this will likely drastically slow '
         b'down execution time, but some extensions might need '
         b'it'
     )
 
 
 def findoptimizations(repo):
     """Determine optimisation that could be used during upgrade"""
     # These are unconditionally added. There is logic later that figures out
     # which ones to apply.
     return list(ALL_OPTIMISATIONS)
 
 
 def determine_upgrade_actions(
     repo, format_upgrades, optimizations, sourcereqs, destreqs
 ):
     """Determine upgrade actions that will be performed.
 
     Given a list of improvements as returned by ``find_format_upgrades`` and
     ``findoptimizations``, determine the list of upgrade actions that
     will be performed.
 
     The role of this function is to filter improvements if needed, apply
     recommended optimizations from the improvements list that make sense,
     etc.
 
     Returns a list of action names.
     """
     newactions = []
 
     for d in format_upgrades:
         if util.safehasattr(d, '_requirement'):
             name = d._requirement
         else:
             name = None
 
         # If the action is a requirement that doesn't show up in the
         # destination requirements, prune the action.
         if name is not None and name not in destreqs:
             continue
 
         newactions.append(d)
 
     newactions.extend(
         o
         for o in sorted(optimizations, key=(lambda x: x.name))
         if o not in newactions
     )
 
     # FUTURE consider adding some optimizations here for certain transitions.
     # e.g. adding generaldelta could schedule parent redeltas.
 
     return newactions
 
 
 class BaseOperation:
     """base class that contains the minimum for an upgrade to work
 
     (this might need to be extended as the usage for subclass alternative to
     UpgradeOperation extends)
     """
 
     def __init__(
         self,
         new_requirements,
         backup_store,
     ):
         self.new_requirements = new_requirements
         # should this operation create a backup of the store
         self.backup_store = backup_store
 
 
 class UpgradeOperation(BaseOperation):
     """represent the work to be done during an upgrade"""
 
     def __init__(
         self,
         ui,
         new_requirements,
         current_requirements,
         upgrade_actions,
         removed_actions,
         revlogs_to_process,
         backup_store,
     ):
         super().__init__(
             new_requirements,
             backup_store,
         )
         self.ui = ui
         self.current_requirements = current_requirements
         # list of upgrade actions the operation will perform
         self.upgrade_actions = upgrade_actions
         self.removed_actions = removed_actions
         self.revlogs_to_process = revlogs_to_process
         # requirements which will be added by the operation
         self._added_requirements = (
             self.new_requirements - self.current_requirements
         )
         # requirements which will be removed by the operation
         self._removed_requirements = (
             self.current_requirements - self.new_requirements
         )
         # requirements which will be preserved by the operation
         self._preserved_requirements = (
             self.current_requirements & self.new_requirements
         )
         # optimizations which are not used and it's recommended that they
         # should use them
         all_optimizations = findoptimizations(None)
         self.unused_optimizations = [
             i for i in all_optimizations if i not in self.upgrade_actions
         ]
 
         # delta reuse mode of this upgrade operation
         upgrade_actions_names = self.upgrade_actions_names
         self.delta_reuse_mode = revlog.revlog.DELTAREUSEALWAYS
         if b're-delta-all' in upgrade_actions_names:
             self.delta_reuse_mode = revlog.revlog.DELTAREUSENEVER
         elif b're-delta-parent' in upgrade_actions_names:
             self.delta_reuse_mode = revlog.revlog.DELTAREUSESAMEREVS
         elif b're-delta-multibase' in upgrade_actions_names:
             self.delta_reuse_mode = revlog.revlog.DELTAREUSESAMEREVS
         elif b're-delta-fulladd' in upgrade_actions_names:
             self.delta_reuse_mode = revlog.revlog.DELTAREUSEFULLADD
 
         # should this operation force re-delta of both parents
         self.force_re_delta_both_parents = (
             b're-delta-multibase' in upgrade_actions_names
         )
 
     @property
     def upgrade_actions_names(self):
         return set([a.name for a in self.upgrade_actions])
 
     @property
     def requirements_only(self):
         # does the operation only touches repository requirement
         return (
             self.touches_requirements
             and not self.touches_filelogs
             and not self.touches_manifests
             and not self.touches_changelog
             and not self.touches_dirstate
         )
 
     @property
     def touches_filelogs(self):
         for a in self.upgrade_actions:
             # in optimisations, we re-process the revlogs again
             if a.type == OPTIMISATION:
                 return True
             elif a.touches_filelogs:
                 return True
         for a in self.removed_actions:
             if a.touches_filelogs:
                 return True
         return False
 
     @property
     def touches_manifests(self):
         for a in self.upgrade_actions:
             # in optimisations, we re-process the revlogs again
             if a.type == OPTIMISATION:
                 return True
             elif a.touches_manifests:
                 return True
         for a in self.removed_actions:
             if a.touches_manifests:
                 return True
         return False
 
     @property
     def touches_changelog(self):
         for a in self.upgrade_actions:
             # in optimisations, we re-process the revlogs again
             if a.type == OPTIMISATION:
                 return True
             elif a.touches_changelog:
                 return True
         for a in self.removed_actions:
             if a.touches_changelog:
                 return True
         return False
 
     @property
     def touches_requirements(self):
         for a in self.upgrade_actions:
             # optimisations are used to re-process revlogs and does not result
             # in a requirement being added or removed
             if a.type == OPTIMISATION:
                 pass
             elif a.touches_requirements:
                 return True
         for a in self.removed_actions:
             if a.touches_requirements:
                 return True
 
     @property
     def touches_dirstate(self):
         for a in self.upgrade_actions:
             # revlog optimisations do not affect the dirstate
             if a.type == OPTIMISATION:
                 pass
             elif a.touches_dirstate:
                 return True
         for a in self.removed_actions:
             if a.touches_dirstate:
                 return True
 
         return False
 
     def _write_labeled(self, l, label: bytes):
         """
         Utility function to aid writing of a list under one label
         """
         first = True
         for r in sorted(l):
             if not first:
                 self.ui.write(b', ')
             self.ui.write(r, label=label)
             first = False
 
     def print_requirements(self):
         self.ui.write(_(b'requirements\n'))
         self.ui.write(_(b'   preserved: '))
         self._write_labeled(
             self._preserved_requirements, b"upgrade-repo.requirement.preserved"
         )
         self.ui.write((b'\n'))
         if self._removed_requirements:
             self.ui.write(_(b'   removed: '))
             self._write_labeled(
                 self._removed_requirements, b"upgrade-repo.requirement.removed"
             )
             self.ui.write((b'\n'))
         if self._added_requirements:
             self.ui.write(_(b'   added: '))
             self._write_labeled(
                 self._added_requirements, b"upgrade-repo.requirement.added"
             )
             self.ui.write((b'\n'))
         self.ui.write(b'\n')
 
     def print_optimisations(self):
         optimisations = [
             a for a in self.upgrade_actions if a.type == OPTIMISATION
         ]
         optimisations.sort(key=lambda a: a.name)
         if optimisations:
             self.ui.write(_(b'optimisations: '))
             self._write_labeled(
                 [a.name for a in optimisations],
                 b"upgrade-repo.optimisation.performed",
             )
             self.ui.write(b'\n\n')
 
     def print_upgrade_actions(self):
         for a in self.upgrade_actions:
             self.ui.status(b'%s\n   %s\n\n' % (a.name, a.upgrademessage))
 
     def print_affected_revlogs(self):
         if not self.revlogs_to_process:
             self.ui.write((b'no revlogs to process\n'))
         else:
             self.ui.write((b'processed revlogs:\n'))
             for r in sorted(self.revlogs_to_process):
                 self.ui.write((b'  - %s\n' % r))
         self.ui.write((b'\n'))
 
     def print_unused_optimizations(self):
         for i in self.unused_optimizations:
             self.ui.status(_(b'%s\n   %s\n\n') % (i.name, i.description))
 
     def has_upgrade_action(self, name):
         """Check whether the upgrade operation will perform this action"""
         return name in self._upgrade_actions_names
 
     def print_post_op_messages(self):
         """print post upgrade operation warning messages"""
         for a in self.upgrade_actions:
             if a.postupgrademessage is not None:
                 self.ui.warn(b'%s\n' % a.postupgrademessage)
         for a in self.removed_actions:
             if a.postdowngrademessage is not None:
                 self.ui.warn(b'%s\n' % a.postdowngrademessage)
 
 
 ###  Code checking if a repository can got through the upgrade process at all. #
 
 
 def requiredsourcerequirements(repo):
     """Obtain requirements required to be present to upgrade a repo.
 
     An upgrade will not be allowed if the repository doesn't have the
     requirements returned by this function.
     """
     return {
         # Introduced in Mercurial 0.9.2.
         requirements.STORE_REQUIREMENT,
     }
 
 
 def blocksourcerequirements(repo):
     """Obtain requirements that will prevent an upgrade from occurring.
 
     An upgrade cannot be performed if the source repository contains a
     requirements in the returned set.
     """
     return {
-        # The upgrade code does not yet support these experimental features.
-        # This is an artificial limitation.
-        requirements.TREEMANIFEST_REQUIREMENT,
         # This was a precursor to generaldelta and was never enabled by default.
         # It should (hopefully) not exist in the wild.
         b'parentdelta',
     }
 
 
 def check_revlog_version(reqs):
     """Check that the requirements contain at least one Revlog version"""
     all_revlogs = {
         requirements.REVLOGV1_REQUIREMENT,
         requirements.REVLOGV2_REQUIREMENT,
     }
     if not all_revlogs.intersection(reqs):
         msg = _(b'cannot upgrade repository; missing a revlog version')
         raise error.Abort(msg)
 
 
 def check_source_requirements(repo):
     """Ensure that no existing requirements prevent the repository upgrade"""
 
     check_revlog_version(repo.requirements)
     required = requiredsourcerequirements(repo)
     missingreqs = required - repo.requirements
     if missingreqs:
         msg = _(b'cannot upgrade repository; requirement missing: %s')
         missingreqs = b', '.join(sorted(missingreqs))
         raise error.Abort(msg % missingreqs)
 
     blocking = blocksourcerequirements(repo)
     blockingreqs = blocking & repo.requirements
     if blockingreqs:
         m = _(b'cannot upgrade repository; unsupported source requirement: %s')
         blockingreqs = b', '.join(sorted(blockingreqs))
         raise error.Abort(m % blockingreqs)
     # Upgrade should operate on the actual store, not the shared link.
 
     bad_share = (
         requirements.SHARED_REQUIREMENT in repo.requirements
         and requirements.SHARESAFE_REQUIREMENT not in repo.requirements
     )
     if bad_share:
         m = _(b'cannot upgrade repository; share repository without share-safe')
         h = _(b'check :hg:`help config.format.use-share-safe`')
         raise error.Abort(m, hint=h)
 
 
 ### Verify the validity of the planned requirement changes ####################
 
 
 def supportremovedrequirements(repo):
     """Obtain requirements that can be removed during an upgrade.
 
     If an upgrade were to create a repository that dropped a requirement,
     the dropped requirement must appear in the returned set for the upgrade
     to be allowed.
     """
     supported = {
         requirements.SPARSEREVLOG_REQUIREMENT,
         requirements.COPIESSDC_REQUIREMENT,
         requirements.NODEMAP_REQUIREMENT,
         requirements.SHARESAFE_REQUIREMENT,
         requirements.REVLOGV2_REQUIREMENT,
         requirements.CHANGELOGV2_REQUIREMENT,
         requirements.REVLOGV1_REQUIREMENT,
         requirements.DIRSTATE_TRACKED_HINT_V1,
         requirements.DIRSTATE_V2_REQUIREMENT,
     }
     for name in compression.compengines:
         engine = compression.compengines[name]
         if engine.available() and engine.revlogheader():
             supported.add(b'exp-compression-%s' % name)
             if engine.name() == b'zstd':
                 supported.add(b'revlog-compression-zstd')
     return supported
 
 
 def supporteddestrequirements(repo):
     """Obtain requirements that upgrade supports in the destination.
 
     If the result of the upgrade would have requirements not in this set,
     the upgrade is disallowed.
 
     Extensions should monkeypatch this to add their custom requirements.
     """
     supported = {
         requirements.CHANGELOGV2_REQUIREMENT,
         requirements.COPIESSDC_REQUIREMENT,
         requirements.DIRSTATE_TRACKED_HINT_V1,
         requirements.DIRSTATE_V2_REQUIREMENT,
         requirements.DOTENCODE_REQUIREMENT,
         requirements.FNCACHE_REQUIREMENT,
         requirements.GENERALDELTA_REQUIREMENT,
         requirements.NODEMAP_REQUIREMENT,
         requirements.REVLOGV1_REQUIREMENT,  # allowed in case of downgrade
         requirements.REVLOGV2_REQUIREMENT,
         requirements.SHARED_REQUIREMENT,
         requirements.SHARESAFE_REQUIREMENT,
         requirements.SPARSEREVLOG_REQUIREMENT,
         requirements.STORE_REQUIREMENT,
+        requirements.TREEMANIFEST_REQUIREMENT,
         requirements.NARROW_REQUIREMENT,
     }
     for name in compression.compengines:
         engine = compression.compengines[name]
         if engine.available() and engine.revlogheader():
             supported.add(b'exp-compression-%s' % name)
             if engine.name() == b'zstd':
                 supported.add(b'revlog-compression-zstd')
     return supported
 
 
 def allowednewrequirements(repo):
     """Obtain requirements that can be added to a repository during upgrade.
 
     This is used to disallow proposed requirements from being added when
     they weren't present before.
 
     We use a list of allowed requirement additions instead of a list of known
     bad additions because the whitelist approach is safer and will prevent
     future, unknown requirements from accidentally being added.
     """
     supported = {
         requirements.DOTENCODE_REQUIREMENT,
         requirements.FNCACHE_REQUIREMENT,
         requirements.GENERALDELTA_REQUIREMENT,
         requirements.SPARSEREVLOG_REQUIREMENT,
         requirements.COPIESSDC_REQUIREMENT,
         requirements.NODEMAP_REQUIREMENT,
         requirements.SHARESAFE_REQUIREMENT,
         requirements.REVLOGV1_REQUIREMENT,
         requirements.REVLOGV2_REQUIREMENT,
         requirements.CHANGELOGV2_REQUIREMENT,
         requirements.DIRSTATE_TRACKED_HINT_V1,
         requirements.DIRSTATE_V2_REQUIREMENT,
     }
     for name in compression.compengines:
         engine = compression.compengines[name]
         if engine.available() and engine.revlogheader():
             supported.add(b'exp-compression-%s' % name)
             if engine.name() == b'zstd':
                 supported.add(b'revlog-compression-zstd')
     return supported
 
 
 def check_requirements_changes(repo, new_reqs):
     old_reqs = repo.requirements
     check_revlog_version(repo.requirements)
     support_removal = supportremovedrequirements(repo)
     no_remove_reqs = old_reqs - new_reqs - support_removal
     if no_remove_reqs:
         msg = _(b'cannot upgrade repository; requirement would be removed: %s')
         no_remove_reqs = b', '.join(sorted(no_remove_reqs))
         raise error.Abort(msg % no_remove_reqs)
 
     support_addition = allowednewrequirements(repo)
     no_add_reqs = new_reqs - old_reqs - support_addition
     if no_add_reqs:
         m = _(b'cannot upgrade repository; do not support adding requirement: ')
         no_add_reqs = b', '.join(sorted(no_add_reqs))
         raise error.Abort(m + no_add_reqs)
 
     supported = supporteddestrequirements(repo)
     unsupported_reqs = new_reqs - supported
     if unsupported_reqs:
         msg = _(
             b'cannot upgrade repository; do not support destination '
             b'requirement: %s'
         )
         unsupported_reqs = b', '.join(sorted(unsupported_reqs))
         raise error.Abort(msg % unsupported_reqs)

tests/test-narrow.t

@@ -1,552 +1,546 b''
 #testcases flat tree
 #testcases lfs-on lfs-off
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
   > evolution=createmarkers
   > EOF
 
 #if lfs-on
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > lfs =
   > EOF
 #endif
 
   $ . "$TESTDIR/narrow-library.sh"
 
 #if tree
   $ cat << EOF >> $HGRCPATH
   > [experimental]
   > treemanifest = 1
   > EOF
 #endif
 
   $ hg init master
   $ cd master
   $ cat >> .hg/hgrc <<EOF
   > [narrow]
   > serveellipses=True
   > EOF
   $ for x in `$TESTDIR/seq.py 0 10`
   > do
   >   mkdir d$x
   >   echo $x > d$x/f
   >   hg add d$x/f
   >   hg commit -m "add d$x/f"
   > done
   $ hg log -T "{rev}: {desc}\n"
   10: add d10/f
   9: add d9/f
   8: add d8/f
   7: add d7/f
   6: add d6/f
   5: add d5/f
   4: add d4/f
   3: add d3/f
   2: add d2/f
   1: add d1/f
   0: add d0/f
   $ cd ..
 
 Error if '.' or '..' are in the directory to track.
   $ hg clone --narrow ssh://user@dummy/master foo --include ./asdf
   abort: "." and ".." are not allowed in narrowspec paths
   [255]
   $ hg clone --narrow ssh://user@dummy/master foo --include asdf/..
   abort: "." and ".." are not allowed in narrowspec paths
   [255]
   $ hg clone --narrow ssh://user@dummy/master foo --include a/./c
   abort: "." and ".." are not allowed in narrowspec paths
   [255]
 
 Names with '.' in them are OK.
   $ hg clone --narrow ./master should-work --include a/.b/c
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 0 changes to 0 files
   new changesets * (glob)
   updating to branch default
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 The "narrow" repo requirement is ignored by [debugupgraderepo]
 
-#if tree
-  $ (cd should-work; hg debugupgraderepo)
-  abort: cannot upgrade repository; unsupported source requirement: treemanifest
-  [255]
-#else
   $ (cd should-work; hg debugupgraderepo | grep 'no format upgrades found in existing repository')
   (no format upgrades found in existing repository)
-#endif
 
 Test repo with local changes
   $ hg clone --narrow ssh://user@dummy/master narrow-local-changes --include d0 --include d3 --include d6
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 6 changesets with 3 changes to 3 files
   new changesets *:* (glob)
   updating to branch default
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd narrow-local-changes
   $ echo local change >> d0/f
   $ hg ci -m 'local change to d0'
   $ hg co '.^'
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo local change >> d3/f
   $ hg ci -m 'local hidden change to d3'
   created new head
   $ hg ci --amend -m 'local change to d3'
   $ hg tracked --removeinclude d0
   comparing with ssh://user@dummy/master
   searching for changes
   looking for local changes to affected paths
   The following changeset(s) or their ancestors have local changes not on the remote:
   * (glob)
   abort: local changes found
   (use --force-delete-local-changes to ignore)
   [20]
 Check that nothing was removed by the failed attempts
   $ hg tracked
   I path:d0
   I path:d3
   I path:d6
   $ hg files
   d0/f
   d3/f
   d6/f
   $ find *
   d0
   d0/f
   d3
   d3/f
   d6
   d6/f
   $ hg verify -q
 Force deletion of local changes
   $ hg log -T "{rev}: {desc} {outsidenarrow}\n"
   8: local change to d3 
   6: local change to d0 
   5: add d10/f outsidenarrow
   4: add d6/f 
   3: add d5/f outsidenarrow
   2: add d3/f 
   1: add d2/f outsidenarrow
   0: add d0/f 
   $ hg tracked --removeinclude d0 --force-delete-local-changes
   comparing with ssh://user@dummy/master
   searching for changes
   looking for local changes to affected paths
   The following changeset(s) or their ancestors have local changes not on the remote:
   * (glob)
   moving unwanted changesets to backup
   saved backup bundle to $TESTTMP/narrow-local-changes/.hg/strip-backup/*-narrow.hg (glob)
   deleting data/d0/f.i (reporevlogstore !)
   deleting meta/d0/00manifest.i (tree !)
   deleting data/d0/f/362fef284ce2ca02aecc8de6d5e8a1c3af0556fe (reposimplestore !)
   deleting data/d0/f/4374b5650fc5ae54ac857c0f0381971fdde376f7 (reposimplestore !)
   deleting data/d0/f/index (reposimplestore !)
   deleting unwanted files from working copy
 
   $ hg log -T "{rev}: {desc} {outsidenarrow}\n"
   7: local change to d3 
   5: add d10/f outsidenarrow
   4: add d6/f 
   3: add d5/f outsidenarrow
   2: add d3/f 
   1: add d2/f outsidenarrow
   0: add d0/f outsidenarrow
 Can restore stripped local changes after widening
   $ hg tracked --addinclude d0 -q
   $ hg unbundle .hg/strip-backup/*-narrow.hg -q
   $ hg --hidden co -r 'desc("local change to d0")' -q
   $ cat d0/f
   0
   local change
 Pruned commits affecting removed paths should not prevent narrowing
   $ hg co '.^'
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg debugobsolete `hg log -T '{node}' -r 'desc("local change to d0")'`
   1 new obsolescence markers
   obsoleted 1 changesets
   $ hg tracked --removeinclude d0
   comparing with ssh://user@dummy/master
   searching for changes
   looking for local changes to affected paths
   moving unwanted changesets to backup
   saved backup bundle to $TESTTMP/narrow-local-changes/.hg/strip-backup/*-narrow.hg (glob)
   deleting data/d0/f.i (reporevlogstore !)
   deleting meta/d0/00manifest.i (tree !)
   deleting data/d0/f/362fef284ce2ca02aecc8de6d5e8a1c3af0556fe (reposimplestore !)
   deleting data/d0/f/4374b5650fc5ae54ac857c0f0381971fdde376f7 (reposimplestore !)
   deleting data/d0/f/index (reposimplestore !)
   deleting unwanted files from working copy
 
 Updates off of stripped commit if necessary
   $ hg co -r 'desc("local change to d3")' -q
   $ echo local change >> d6/f
   $ hg ci -m 'local change to d6'
   $ hg tracked --removeinclude d3 --force-delete-local-changes
   comparing with ssh://user@dummy/master
   searching for changes
   looking for local changes to affected paths
   The following changeset(s) or their ancestors have local changes not on the remote:
   * (glob)
   * (glob)
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   moving unwanted changesets to backup
   saved backup bundle to $TESTTMP/narrow-local-changes/.hg/strip-backup/*-narrow.hg (glob)
   deleting data/d3/f.i (reporevlogstore !)
   deleting meta/d3/00manifest.i (tree !)
   deleting data/d3/f/2661d26c649684b482d10f91960cc3db683c38b4 (reposimplestore !)
   deleting data/d3/f/99fa7136105a15e2045ce3d9152e4837c5349e4d (reposimplestore !)
   deleting data/d3/f/index (reposimplestore !)
   deleting unwanted files from working copy
   $ hg log -T '{desc}\n' -r .
   add d10/f
 Updates to nullid if necessary
   $ hg tracked --addinclude d3 -q
   $ hg co null -q
   $ mkdir d3
   $ echo local change > d3/f
   $ hg add d3/f
   $ hg ci -m 'local change to d3'
   created new head
   $ hg tracked --removeinclude d3 --force-delete-local-changes
   comparing with ssh://user@dummy/master
   searching for changes
   looking for local changes to affected paths
   The following changeset(s) or their ancestors have local changes not on the remote:
   * (glob)
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   moving unwanted changesets to backup
   saved backup bundle to $TESTTMP/narrow-local-changes/.hg/strip-backup/*-narrow.hg (glob)
   deleting data/d3/f.i (reporevlogstore !)
   deleting meta/d3/00manifest.i (tree !)
   deleting data/d3/f/2661d26c649684b482d10f91960cc3db683c38b4 (reposimplestore !)
   deleting data/d3/f/5ce0767945cbdbca3b924bb9fbf5143f72ab40ac (reposimplestore !)
   deleting data/d3/f/index (reposimplestore !)
   deleting unwanted files from working copy
   $ hg id
   000000000000
   $ cd ..
 
 Narrowing doesn't resurrect old commits (unlike what regular `hg strip` does)
   $ hg clone --narrow ssh://user@dummy/master narrow-obsmarkers --include d0 --include d3 -q
   $ cd narrow-obsmarkers
   $ echo a >> d0/f2
   $ hg add d0/f2
   $ hg ci -m 'modify d0/'
   $ echo a >> d3/f2
   $ hg add d3/f2
   $ hg commit --amend -m 'modify d0/ and d3/'
   $ hg log -T "{rev}: {desc}\n"
   5: modify d0/ and d3/
   3: add d10/f
   2: add d3/f
   1: add d2/f
   0: add d0/f
   $ hg tracked --removeinclude d3 --force-delete-local-changes -q
   $ hg log -T "{rev}: {desc}\n"
   3: add d10/f
   2: add d3/f
   1: add d2/f
   0: add d0/f
   $ cd ..
 
 Widening doesn't lose bookmarks
   $ hg clone --narrow ssh://user@dummy/master widen-bookmarks --include d0 -q
   $ cd widen-bookmarks
   $ hg bookmark my-bookmark
   $ hg log -T "{rev}: {desc} {bookmarks}\n"
   1: add d10/f my-bookmark
   0: add d0/f 
   $ hg tracked --addinclude d3 -q
   $ hg log -T "{rev}: {desc} {bookmarks}\n"
   3: add d10/f my-bookmark
   2: add d3/f 
   1: add d2/f 
   0: add d0/f 
   $ cd ..
 
 Can remove last include, making repo empty
   $ hg clone --narrow ssh://user@dummy/master narrow-empty --include d0 -r 5
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 1 changes to 1 files
   new changesets *:* (glob)
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd narrow-empty
   $ hg tracked --removeinclude d0
   comparing with ssh://user@dummy/master
   searching for changes
   looking for local changes to affected paths
   deleting data/d0/f.i (reporevlogstore !)
   deleting meta/d0/00manifest.i (tree !)
   deleting data/d0/f/362fef284ce2ca02aecc8de6d5e8a1c3af0556fe (reposimplestore !)
   deleting data/d0/f/index (reposimplestore !)
   deleting unwanted files from working copy
   $ hg tracked
   $ hg files
   [1]
   $ test -d d0
   [1]
 Do some work in the empty clone
   $ hg diff --change .
   $ hg branch foo
   marked working directory as branch foo
   (branches are permanent and global, did you want a bookmark?)
   $ hg ci -m empty
   $ hg log -T "{rev}: {desc} {outsidenarrow}\n"
   2: empty 
   1: add d5/f outsidenarrow
   0: add d0/f outsidenarrow
   $ hg pull -q
 Can widen the empty clone
   $ hg tracked --addinclude d0
   comparing with ssh://user@dummy/master
   searching for changes
   saved backup bundle to $TESTTMP/narrow-empty/.hg/strip-backup/*-widen.hg (glob)
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 1 changes to 1 files (+1 heads)
   $ hg tracked
   I path:d0
   $ hg files
   d0/f
   $ find *
   d0
   d0/f
   $ cd ..
 
 TODO(martinvonz): test including e.g. d3/g and then removing it once
 https://bitbucket.org/Google/narrowhg/issues/6 is fixed
 
   $ hg clone --narrow ssh://user@dummy/master narrow --include d0 --include d3 --include d6 --include d9
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 8 changesets with 4 changes to 4 files
   new changesets *:* (glob)
   updating to branch default
   4 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd narrow
   $ hg tracked
   I path:d0
   I path:d3
   I path:d6
   I path:d9
   $ hg tracked --removeinclude d6
   comparing with ssh://user@dummy/master
   searching for changes
   looking for local changes to affected paths
   deleting data/d6/f.i (reporevlogstore !)
   deleting meta/d6/00manifest.i (tree !)
   deleting data/d6/f/7339d30678f451ac8c3f38753beeb4cf2e1655c7 (reposimplestore !)
   deleting data/d6/f/index (reposimplestore !)
   deleting unwanted files from working copy
   $ hg tracked
   I path:d0
   I path:d3
   I path:d9
 #if repofncache
   $ hg debugrebuildfncache
   fncache already up to date
 #endif
   $ find *
   d0
   d0/f
   d3
   d3/f
   d9
   d9/f
   $ hg verify -q
   $ hg tracked --addexclude d3/f
   comparing with ssh://user@dummy/master
   searching for changes
   looking for local changes to affected paths
   deleting data/d3/f.i (reporevlogstore !)
   deleting data/d3/f/2661d26c649684b482d10f91960cc3db683c38b4 (reposimplestore !)
   deleting data/d3/f/index (reposimplestore !)
   deleting unwanted files from working copy
   $ hg tracked
   I path:d0
   I path:d3
   I path:d9
   X path:d3/f
 #if repofncache
   $ hg debugrebuildfncache
   fncache already up to date
 #endif
   $ find *
   d0
   d0/f
   d9
   d9/f
   $ hg verify -q
   $ hg tracked --addexclude d0
   comparing with ssh://user@dummy/master
   searching for changes
   looking for local changes to affected paths
   deleting data/d0/f.i (reporevlogstore !)
   deleting meta/d0/00manifest.i (tree !)
   deleting data/d0/f/362fef284ce2ca02aecc8de6d5e8a1c3af0556fe (reposimplestore !)
   deleting data/d0/f/index (reposimplestore !)
   deleting unwanted files from working copy
   $ hg tracked
   I path:d3
   I path:d9
   X path:d0
   X path:d3/f
 #if repofncache
   $ hg debugrebuildfncache
   fncache already up to date
 #endif
   $ find *
   d9
   d9/f
 
 Make a 15 of changes to d9 to test the path without --verbose
 (Note: using regexes instead of "* (glob)" because if the test fails, it
 produces more sensible diffs)
   $ hg tracked
   I path:d3
   I path:d9
   X path:d0
   X path:d3/f
   $ for x in `$TESTDIR/seq.py 1 15`
   > do
   >   echo local change >> d9/f
   >   hg commit -m "change $x to d9/f"
   > done
   $ hg tracked --removeinclude d9
   comparing with ssh://user@dummy/master
   searching for changes
   looking for local changes to affected paths
   The following changeset(s) or their ancestors have local changes not on the remote:
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ...and 5 more, use --verbose to list all
   abort: local changes found
   (use --force-delete-local-changes to ignore)
   [20]
 Now test it *with* verbose.
   $ hg tracked --removeinclude d9 --verbose
   comparing with ssh://user@dummy/master
   searching for changes
   looking for local changes to affected paths
   The following changeset(s) or their ancestors have local changes not on the remote:
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   ^[0-9a-f]{12}$ (re)
   abort: local changes found
   (use --force-delete-local-changes to ignore)
   [20]
   $ cd ..
 
 Test --auto-remove-includes
   $ hg clone --narrow ssh://user@dummy/master narrow-auto-remove -q \
   > --include d0 --include d1 --include d2
   $ cd narrow-auto-remove
   $ echo a >> d0/f
   $ hg ci -m 'local change to d0'
   $ hg co '.^'
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo a >> d1/f
   $ hg ci -m 'local change to d1'
   created new head
   $ hg debugobsolete $(hg log -T '{node}' -r 'desc("local change to d0")')
   1 new obsolescence markers
   obsoleted 1 changesets
   $ echo n | hg tracked --auto-remove-includes --config ui.interactive=yes
   comparing with ssh://user@dummy/master
   searching for changes
   looking for unused includes to remove
   path:d0
   path:d2
   remove these unused includes (yn)? n
   $ hg tracked --auto-remove-includes
   comparing with ssh://user@dummy/master
   searching for changes
   looking for unused includes to remove
   path:d0
   path:d2
   remove these unused includes (yn)? y
   looking for local changes to affected paths
   moving unwanted changesets to backup
   saved backup bundle to $TESTTMP/narrow-auto-remove/.hg/strip-backup/*-narrow.hg (glob)
   deleting data/d0/f.i
   deleting data/d2/f.i
   deleting meta/d0/00manifest.i (tree !)
   deleting meta/d2/00manifest.i (tree !)
   deleting unwanted files from working copy
   $ hg tracked
   I path:d1
   $ hg files
   d1/f
   $ hg tracked --auto-remove-includes
   comparing with ssh://user@dummy/master
   searching for changes
   looking for unused includes to remove
   found no unused includes
 Test --no-backup
   $ hg tracked --addinclude d0 --addinclude d2 -q
   $ hg unbundle .hg/strip-backup/*-narrow.hg -q
   $ rm .hg/strip-backup/*
   $ hg tracked --auto-remove-includes --no-backup
   comparing with ssh://user@dummy/master
   searching for changes
   looking for unused includes to remove
   path:d0
   path:d2
   remove these unused includes (yn)? y
   looking for local changes to affected paths
   deleting unwanted changesets
   deleting data/d0/f.i
   deleting data/d2/f.i
   deleting meta/d0/00manifest.i (tree !)
   deleting meta/d2/00manifest.i (tree !)
   deleting unwanted files from working copy
   $ ls .hg/strip-backup/
 
 
 Test removing include while concurrently modifying file in that path
   $ hg clone --narrow ssh://user@dummy/master narrow-concurrent-modify -q \
   > --include d0 --include d1
   $ cd narrow-concurrent-modify
   $ hg --config 'hooks.pretxnopen = echo modified >> d0/f' tracked --removeinclude d0
   comparing with ssh://user@dummy/master
   searching for changes
   looking for local changes to affected paths
   deleting data/d0/f.i
   deleting meta/d0/00manifest.i (tree !)
   deleting unwanted files from working copy
   not deleting possibly dirty file d0/f

tests/test-treemanifest.t

@@ -1,855 +1,899 b''
 Set up repo
 
   $ hg --config experimental.treemanifest=True init repo
   $ cd repo
 
 Requirements get set on init
 
   $ hg debugrequires | grep treemanifest
   treemanifest
 
 Without directories, looks like any other repo
 
   $ echo 0 > a
   $ echo 0 > b
   $ hg ci -Aqm initial
   $ hg debugdata -m 0
   a\x00362fef284ce2ca02aecc8de6d5e8a1c3af0556fe (esc)
   b\x00362fef284ce2ca02aecc8de6d5e8a1c3af0556fe (esc)
 
 Submanifest is stored in separate revlog
 
   $ mkdir dir1
   $ echo 1 > dir1/a
   $ echo 1 > dir1/b
   $ echo 1 > e
   $ hg ci -Aqm 'add dir1'
   $ hg debugdata -m 1
   a\x00362fef284ce2ca02aecc8de6d5e8a1c3af0556fe (esc)
   b\x00362fef284ce2ca02aecc8de6d5e8a1c3af0556fe (esc)
   dir1\x008b3ffd73f901e83304c83d33132c8e774ceac44et (esc)
   e\x00b8e02f6433738021a065f94175c7cd23db5f05be (esc)
   $ hg debugdata --dir dir1 0
   a\x00b8e02f6433738021a065f94175c7cd23db5f05be (esc)
   b\x00b8e02f6433738021a065f94175c7cd23db5f05be (esc)
 
 Can add nested directories
 
   $ mkdir dir1/dir1
   $ echo 2 > dir1/dir1/a
   $ echo 2 > dir1/dir1/b
   $ mkdir dir1/dir2
   $ echo 2 > dir1/dir2/a
   $ echo 2 > dir1/dir2/b
   $ hg ci -Aqm 'add dir1/dir1'
   $ hg files -r .
   a
   b
   dir1/a
   dir1/b
   dir1/dir1/a
   dir1/dir1/b
   dir1/dir2/a
   dir1/dir2/b
   e
 
 The manifest command works
 
   $ hg manifest
   a
   b
   dir1/a
   dir1/b
   dir1/dir1/a
   dir1/dir1/b
   dir1/dir2/a
   dir1/dir2/b
   e
 
 Revision is not created for unchanged directory
 
   $ mkdir dir2
   $ echo 3 > dir2/a
   $ hg add dir2
   adding dir2/a
   $ hg debugindex --dir dir1 > before
   $ hg ci -qm 'add dir2'
   $ hg debugindex --dir dir1 > after
   $ diff before after
   $ rm before after
 
 Removing directory does not create an revlog entry
 
   $ hg rm dir1/dir1
   removing dir1/dir1/a
   removing dir1/dir1/b
   $ hg debugindex --dir dir1/dir1 > before
   $ hg ci -qm 'remove dir1/dir1'
   $ hg debugindex --dir dir1/dir1 > after
   $ diff before after
   $ rm before after
 
 Check that hg files (calls treemanifest.walk()) works
 without loading all directory revlogs
 
   $ hg co 'desc("add dir2")'
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ mv .hg/store/meta/dir2 .hg/store/meta/dir2-backup
   $ hg files -r . dir1
   dir1/a
   dir1/b
   dir1/dir1/a
   dir1/dir1/b
   dir1/dir2/a
   dir1/dir2/b
 
 Check that status between revisions works (calls treemanifest.matches())
 without loading all directory revlogs
 
   $ hg status --rev 'desc("add dir1")' --rev . dir1
   A dir1/dir1/a
   A dir1/dir1/b
   A dir1/dir2/a
   A dir1/dir2/b
   $ mv .hg/store/meta/dir2-backup .hg/store/meta/dir2
 
 Merge creates 2-parent revision of directory revlog
 
   $ echo 5 > dir1/a
   $ hg ci -Aqm 'modify dir1/a'
   $ hg co '.^'
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo 6 > dir1/b
   $ hg ci -Aqm 'modify dir1/b'
   $ hg merge 'desc("modify dir1/a")'
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg ci -m 'conflict-free merge involving dir1/'
   $ cat dir1/a
   5
   $ cat dir1/b
   6
   $ hg debugindex --dir dir1
      rev linkrev       nodeid    p1-nodeid    p2-nodeid
        0       1 8b3ffd73f901 000000000000 000000000000
        1       2 68e9d057c5a8 8b3ffd73f901 000000000000
        2       4 4698198d2624 68e9d057c5a8 000000000000
        3       5 44844058ccce 68e9d057c5a8 000000000000
        4       6 bf3d9b744927 68e9d057c5a8 000000000000
        5       7 dde7c0af2a03 bf3d9b744927 44844058ccce
 
 Merge keeping directory from parent 1 does not create revlog entry. (Note that
 dir1's manifest does change, but only because dir1/a's filelog changes.)
 
   $ hg co 'desc("add dir2")'
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo 8 > dir2/a
   $ hg ci -m 'modify dir2/a'
   created new head
 
   $ hg debugindex --dir dir2 > before
   $ hg merge 'desc("modify dir1/a")'
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg revert -r 'desc("modify dir2/a")' .
   reverting dir1/a
   $ hg ci -m 'merge, keeping parent 1'
   $ hg debugindex --dir dir2 > after
   $ diff before after
   $ rm before after
 
 Merge keeping directory from parent 2 does not create revlog entry. (Note that
 dir2's manifest does change, but only because dir2/a's filelog changes.)
 
   $ hg co 'desc("modify dir2/a")'
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg debugindex --dir dir1 > before
   $ hg merge 'desc("modify dir1/a")'
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg revert -r 'desc("modify dir1/a")' .
   reverting dir2/a
   $ hg ci -m 'merge, keeping parent 2'
   created new head
   $ hg debugindex --dir dir1 > after
   $ diff before after
   $ rm before after
 
 Create flat source repo for tests with mixed flat/tree manifests
 
   $ cd ..
   $ hg init repo-flat
   $ cd repo-flat
 
 Create a few commits with flat manifest
 
   $ echo 0 > a
   $ echo 0 > b
   $ echo 0 > e
   $ for d in dir1 dir1/dir1 dir1/dir2 dir2
   > do
   >   mkdir $d
   >   echo 0 > $d/a
   >   echo 0 > $d/b
   > done
   $ hg ci -Aqm initial
 
   $ echo 1 > a
   $ echo 1 > dir1/a
   $ echo 1 > dir1/dir1/a
   $ hg ci -Aqm 'modify on branch 1'
 
   $ hg co 0
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo 2 > b
   $ echo 2 > dir1/b
   $ echo 2 > dir1/dir1/b
   $ hg ci -Aqm 'modify on branch 2'
 
   $ hg merge 1
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg ci -m 'merge of flat manifests to new flat manifest'
 
   $ cd ..
   $ hg -R repo-flat serve -p $HGPORT -d \
   >   --pid-file=port-0-hg.pid \
   >   --errorlog=port-0-errors.log
   $ cat port-0-hg.pid >> $DAEMON_PIDS
 
 Create clone with tree manifests enabled
 
   $ hg clone --config experimental.treemanifest=1 \
   >   http://localhost:$HGPORT repo-mixed -r 1
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 14 changes to 11 files
   new changesets 5b02a3e8db7e:581ef6037d8b
   updating to branch default
   11 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cat port-0-errors.log
   $ cd repo-mixed
   $ test -d .hg/store/meta
   [1]
   $ hg debugrequires | grep treemanifest
   treemanifest
 
 Should be possible to push updates from flat to tree manifest repo
 
   $ hg -R ../repo-flat push ssh://user@dummy/repo-mixed
   pushing to ssh://user@dummy/repo-mixed
   searching for changes
   remote: adding changesets
   remote: adding manifests
   remote: adding file changes
   remote: added 2 changesets with 3 changes to 3 files
 
 Commit should store revlog per directory
 
   $ hg co 1
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo 3 > a
   $ echo 3 > dir1/a
   $ echo 3 > dir1/dir1/a
   $ hg ci -m 'first tree'
   created new head
   $ find .hg/store/meta | sort
   .hg/store/meta
   .hg/store/meta/dir1
   .hg/store/meta/dir1/00manifest.i
   .hg/store/meta/dir1/dir1
   .hg/store/meta/dir1/dir1/00manifest.i
   .hg/store/meta/dir1/dir2
   .hg/store/meta/dir1/dir2/00manifest.i
   .hg/store/meta/dir2
   .hg/store/meta/dir2/00manifest.i
 
 Merge of two trees
 
   $ hg co 2
   6 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg merge 1
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg ci -m 'merge of flat manifests to new tree manifest'
   created new head
   $ hg diff -r 3
 
 Parent of tree root manifest should be flat manifest, and two for merge
 
   $ hg debugindex -m
      rev linkrev       nodeid    p1-nodeid    p2-nodeid
        0       0 40536115ed9e 000000000000 000000000000
        1       1 f3376063c255 40536115ed9e 000000000000
        2       2 5d9b9da231a2 40536115ed9e 000000000000
        3       3 d17d663cbd8a 5d9b9da231a2 f3376063c255
        4       4 51e32a8c60ee f3376063c255 000000000000
        5       5 cc5baa78b230 5d9b9da231a2 f3376063c255
 
 
 Status across flat/tree boundary should work
 
   $ hg status --rev '.^' --rev .
   M a
   M dir1/a
   M dir1/dir1/a
 
 
 Turning off treemanifest config has no effect
 
   $ hg debugindex --dir dir1
      rev linkrev       nodeid    p1-nodeid    p2-nodeid
        0       4 064927a0648a 000000000000 000000000000
        1       5 25ecb8cb8618 000000000000 000000000000
   $ echo 2 > dir1/a
   $ hg --config experimental.treemanifest=False ci -qm 'modify dir1/a'
   $ hg debugindex --dir dir1
      rev linkrev       nodeid    p1-nodeid    p2-nodeid
        0       4 064927a0648a 000000000000 000000000000
        1       5 25ecb8cb8618 000000000000 000000000000
        2       6 5b16163a30c6 25ecb8cb8618 000000000000
 
 Stripping and recovering changes should work
 
   $ hg st --change tip
   M dir1/a
   $ hg --config extensions.strip= strip tip
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   saved backup bundle to $TESTTMP/repo-mixed/.hg/strip-backup/51cfd7b1e13b-78a2f3ed-backup.hg
   $ hg debugindex --dir dir1
      rev linkrev       nodeid    p1-nodeid    p2-nodeid
        0       4 064927a0648a 000000000000 000000000000
        1       5 25ecb8cb8618 000000000000 000000000000
 
 #if repobundlerepo
   $ hg incoming .hg/strip-backup/*
   comparing with .hg/strip-backup/*-backup.hg (glob)
   searching for changes
   changeset:   6:51cfd7b1e13b
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     modify dir1/a
   
 #endif
 
   $ hg unbundle .hg/strip-backup/*
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   new changesets 51cfd7b1e13b (1 drafts)
   (run 'hg update' to get a working copy)
   $ hg --config extensions.strip= strip tip
   saved backup bundle to $TESTTMP/repo-mixed/.hg/strip-backup/*-backup.hg (glob)
   $ hg unbundle -q .hg/strip-backup/*
   $ hg debugindex --dir dir1
      rev linkrev       nodeid    p1-nodeid    p2-nodeid
        0       4 064927a0648a 000000000000 000000000000
        1       5 25ecb8cb8618 000000000000 000000000000
        2       6 5b16163a30c6 25ecb8cb8618 000000000000
   $ hg st --change tip
   M dir1/a
 
 Shelving and unshelving should work
 
   $ echo foo >> dir1/a
   $ hg shelve
   shelved as default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg unshelve
   unshelving change 'default'
   $ hg diff --nodates
   diff -r 708a273da119 dir1/a
   --- a/dir1/a
   +++ b/dir1/a
   @@ -1,1 +1,2 @@
    1
   +foo
 
 Pushing from treemanifest repo to an empty repo makes that a treemanifest repo
 
   $ cd ..
   $ hg init empty-repo
   $ cat << EOF >> empty-repo/.hg/hgrc
   > [experimental]
   > changegroup3=yes
   > EOF
   $ hg debugrequires -R empty-repo | grep treemanifest
   [1]
   $ hg push -R repo -r 0 empty-repo
   pushing to empty-repo
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 2 changes to 2 files
   $ hg debugrequires -R empty-repo | grep treemanifest
   treemanifest
 
 Pushing to an empty repo works
 
   $ hg --config experimental.treemanifest=1 init clone
   $ hg debugrequires -R clone | grep treemanifest
   treemanifest
   $ hg push -R repo clone
   pushing to clone
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 11 changesets with 15 changes to 10 files (+3 heads)
   $ hg debugrequires -R clone | grep treemanifest
   treemanifest
   $ hg -R clone verify -q
 
 Create deeper repo with tree manifests.
 
   $ hg --config experimental.treemanifest=True init deeprepo
   $ cd deeprepo
 
   $ mkdir .A
   $ mkdir b
   $ mkdir b/bar
   $ mkdir b/bar/orange
   $ mkdir b/bar/orange/fly
   $ mkdir b/foo
   $ mkdir b/foo/apple
   $ mkdir b/foo/apple/bees
 
   $ touch .A/one.txt
   $ touch .A/two.txt
   $ touch b/bar/fruits.txt
   $ touch b/bar/orange/fly/gnat.py
   $ touch b/bar/orange/fly/housefly.txt
   $ touch b/foo/apple/bees/flower.py
   $ touch c.txt
   $ touch d.py
 
   $ hg ci -Aqm 'initial'
 
   $ echo >> .A/one.txt
   $ echo >> .A/two.txt
   $ echo >> b/bar/fruits.txt
   $ echo >> b/bar/orange/fly/gnat.py
   $ echo >> b/bar/orange/fly/housefly.txt
   $ echo >> b/foo/apple/bees/flower.py
   $ echo >> c.txt
   $ echo >> d.py
   $ hg ci -Aqm 'second'
 
 We'll see that visitdir works by removing some treemanifest revlogs and running
 the files command with various parameters.
 
 Test files from the root.
 
   $ hg files -r .
   .A/one.txt
   .A/two.txt
   b/bar/fruits.txt
   b/bar/orange/fly/gnat.py
   b/bar/orange/fly/housefly.txt
   b/foo/apple/bees/flower.py
   c.txt
   d.py
 
 Excludes with a glob should not exclude everything from the glob's root
 
   $ hg files -r . -X 'b/fo?' b
   b/bar/fruits.txt
   b/bar/orange/fly/gnat.py
   b/bar/orange/fly/housefly.txt
   $ cp -R .hg/store .hg/store-copy
 
 Test files for a subdirectory.
 
 #if reporevlogstore
   $ rm -r .hg/store/meta/~2e_a
 #endif
 #if reposimplestore
   $ rm -r .hg/store/meta/._a
 #endif
   $ hg files -r . b
   b/bar/fruits.txt
   b/bar/orange/fly/gnat.py
   b/bar/orange/fly/housefly.txt
   b/foo/apple/bees/flower.py
   $ hg diff -r '.^' -r . --stat b
    b/bar/fruits.txt              |  1 +
    b/bar/orange/fly/gnat.py      |  1 +
    b/bar/orange/fly/housefly.txt |  1 +
    b/foo/apple/bees/flower.py    |  1 +
    4 files changed, 4 insertions(+), 0 deletions(-)
   $ cp -R .hg/store-copy/. .hg/store
 
 Test files with just includes and excludes.
 
 #if reporevlogstore
   $ rm -r .hg/store/meta/~2e_a
 #endif
 #if reposimplestore
   $ rm -r .hg/store/meta/._a
 #endif
   $ rm -r .hg/store/meta/b/bar/orange/fly
   $ rm -r .hg/store/meta/b/foo/apple/bees
   $ hg files -r . -I path:b/bar -X path:b/bar/orange/fly -I path:b/foo -X path:b/foo/apple/bees
   b/bar/fruits.txt
   $ hg diff -r '.^' -r . --stat -I path:b/bar -X path:b/bar/orange/fly -I path:b/foo -X path:b/foo/apple/bees
    b/bar/fruits.txt |  1 +
    1 files changed, 1 insertions(+), 0 deletions(-)
   $ cp -R .hg/store-copy/. .hg/store
 
 Test files for a subdirectory, excluding a directory within it.
 
 #if reporevlogstore
   $ rm -r .hg/store/meta/~2e_a
 #endif
 #if reposimplestore
   $ rm -r .hg/store/meta/._a
 #endif
   $ rm -r .hg/store/meta/b/foo
   $ hg files -r . -X path:b/foo b
   b/bar/fruits.txt
   b/bar/orange/fly/gnat.py
   b/bar/orange/fly/housefly.txt
   $ hg diff -r '.^' -r . --stat -X path:b/foo b
    b/bar/fruits.txt              |  1 +
    b/bar/orange/fly/gnat.py      |  1 +
    b/bar/orange/fly/housefly.txt |  1 +
    3 files changed, 3 insertions(+), 0 deletions(-)
   $ cp -R .hg/store-copy/. .hg/store
 
 Test files for a sub directory, including only a directory within it, and
 including an unrelated directory.
 
 #if reporevlogstore
   $ rm -r .hg/store/meta/~2e_a
 #endif
 #if reposimplestore
   $ rm -r .hg/store/meta/._a
 #endif
   $ rm -r .hg/store/meta/b/foo
   $ hg files -r . -I path:b/bar/orange -I path:a b
   b/bar/orange/fly/gnat.py
   b/bar/orange/fly/housefly.txt
   $ hg diff -r '.^' -r . --stat -I path:b/bar/orange -I path:a b
    b/bar/orange/fly/gnat.py      |  1 +
    b/bar/orange/fly/housefly.txt |  1 +
    2 files changed, 2 insertions(+), 0 deletions(-)
   $ cp -R .hg/store-copy/. .hg/store
 
 Test files for a pattern, including a directory, and excluding a directory
 within that.
 
 #if reporevlogstore
   $ rm -r .hg/store/meta/~2e_a
 #endif
 #if reposimplestore
   $ rm -r .hg/store/meta/._a
 #endif
   $ rm -r .hg/store/meta/b/foo
   $ rm -r .hg/store/meta/b/bar/orange
   $ hg files -r . glob:**.txt -I path:b/bar -X path:b/bar/orange
   b/bar/fruits.txt
   $ hg diff -r '.^' -r . --stat glob:**.txt -I path:b/bar -X path:b/bar/orange
    b/bar/fruits.txt |  1 +
    1 files changed, 1 insertions(+), 0 deletions(-)
   $ cp -R .hg/store-copy/. .hg/store
 
 Add some more changes to the deep repo
   $ echo narf >> b/bar/fruits.txt
   $ hg ci -m narf
   $ echo troz >> b/bar/orange/fly/gnat.py
   $ hg ci -m troz
 
 Verify works
   $ hg verify -q
 
 #if repofncache
 Dirlogs are included in fncache
   $ grep meta/.A/00manifest.i .hg/store/fncache
   meta/.A/00manifest.i
 
 Rebuilt fncache includes dirlogs
   $ rm .hg/store/fncache
   $ hg debugrebuildfncache
   adding data/.A/one.txt.i
   adding data/.A/two.txt.i
   adding data/b/bar/fruits.txt.i
   adding data/b/bar/orange/fly/gnat.py.i
   adding data/b/bar/orange/fly/housefly.txt.i
   adding data/b/foo/apple/bees/flower.py.i
   adding data/c.txt.i
   adding data/d.py.i
   adding meta/.A/00manifest.i
   adding meta/b/00manifest.i
   adding meta/b/bar/00manifest.i
   adding meta/b/bar/orange/00manifest.i
   adding meta/b/bar/orange/fly/00manifest.i
   adding meta/b/foo/00manifest.i
   adding meta/b/foo/apple/00manifest.i
   adding meta/b/foo/apple/bees/00manifest.i
   16 items added, 0 removed from fncache
 #endif
 
 Finish first server
   $ killdaemons.py
 
 Back up the recently added revlogs
   $ cp -R .hg/store .hg/store-newcopy
 
 Verify reports missing dirlog
   $ rm .hg/store/meta/b/00manifest.*
   $ hg verify
   checking changesets
   checking manifests
   checking directory manifests
    0: empty or missing b/
    b/@0: parent-directory manifest refers to unknown revision 67688a370455
    b/@1: parent-directory manifest refers to unknown revision f065da70369e
    b/@2: parent-directory manifest refers to unknown revision ac0d30948e0b
    b/@3: parent-directory manifest refers to unknown revision 367152e6af28
   warning: orphan data file 'meta/b/bar/00manifest.i' (reporevlogstore !)
   warning: orphan data file 'meta/b/bar/orange/00manifest.i' (reporevlogstore !)
   warning: orphan data file 'meta/b/bar/orange/fly/00manifest.i' (reporevlogstore !)
   warning: orphan data file 'meta/b/foo/00manifest.i' (reporevlogstore !)
   warning: orphan data file 'meta/b/foo/apple/00manifest.i' (reporevlogstore !)
   warning: orphan data file 'meta/b/foo/apple/bees/00manifest.i' (reporevlogstore !)
   crosschecking files in changesets and manifests
    b/bar/fruits.txt@0: in changeset but not in manifest
    b/bar/orange/fly/gnat.py@0: in changeset but not in manifest
    b/bar/orange/fly/housefly.txt@0: in changeset but not in manifest
    b/foo/apple/bees/flower.py@0: in changeset but not in manifest
   checking files
   not checking dirstate because of previous errors
   checked 4 changesets with 18 changes to 8 files
   6 warnings encountered! (reporevlogstore !)
   9 integrity errors encountered!
   (first damaged changeset appears to be 0)
   [1]
   $ cp -R .hg/store-newcopy/. .hg/store
 
 Verify reports missing dirlog entry
   $ mv -f .hg/store-copy/meta/b/00manifest.* .hg/store/meta/b/
   $ hg verify
   checking changesets
   checking manifests
   checking directory manifests
    b/@2: parent-directory manifest refers to unknown revision ac0d30948e0b
    b/@3: parent-directory manifest refers to unknown revision 367152e6af28
    b/bar/@?: rev 2 points to unexpected changeset 2
    b/bar/@?: 44d7e1146e0d not in parent-directory manifest
    b/bar/@?: rev 3 points to unexpected changeset 3
    b/bar/@?: 70b10c6b17b7 not in parent-directory manifest
    b/bar/orange/@?: rev 2 points to unexpected changeset 3
    (expected None)
    b/bar/orange/fly/@?: rev 2 points to unexpected changeset 3
    (expected None)
   crosschecking files in changesets and manifests
   checking files
   not checking dirstate because of previous errors
   checked 4 changesets with 18 changes to 8 files
   2 warnings encountered!
   8 integrity errors encountered!
   (first damaged changeset appears to be 2)
   [1]
   $ cp -R .hg/store-newcopy/. .hg/store
 
 Test cloning a treemanifest repo over http.
   $ cd ..
   $ hg -R deeprepo serve -p $HGPORT -d \
   >   --pid-file=port-0-hg.pid \
   >   --errorlog=port-0-errors.log
   $ cat port-0-hg.pid >> $DAEMON_PIDS
 
 We can clone even with the knob turned off and we'll get a treemanifest repo.
   $ hg clone --config experimental.treemanifest=False \
   >   --config experimental.changegroup3=True \
   >   http://localhost:$HGPORT deepclone
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 18 changes to 8 files
   new changesets 775704be6f52:523e5c631710
   updating to branch default
   8 files updated, 0 files merged, 0 files removed, 0 files unresolved
 No server errors.
   $ cat port-0-errors.log
 
 requires got updated to include treemanifest
   $ hg debugrequires -R deepclone | grep treemanifest
   treemanifest
 Tree manifest revlogs exist.
   $ find deepclone/.hg/store/meta | sort
   deepclone/.hg/store/meta
   deepclone/.hg/store/meta/._a (reposimplestore !)
   deepclone/.hg/store/meta/._a/00manifest.i (reposimplestore !)
   deepclone/.hg/store/meta/b
   deepclone/.hg/store/meta/b/00manifest.i
   deepclone/.hg/store/meta/b/bar
   deepclone/.hg/store/meta/b/bar/00manifest.i
   deepclone/.hg/store/meta/b/bar/orange
   deepclone/.hg/store/meta/b/bar/orange/00manifest.i
   deepclone/.hg/store/meta/b/bar/orange/fly
   deepclone/.hg/store/meta/b/bar/orange/fly/00manifest.i
   deepclone/.hg/store/meta/b/foo
   deepclone/.hg/store/meta/b/foo/00manifest.i
   deepclone/.hg/store/meta/b/foo/apple
   deepclone/.hg/store/meta/b/foo/apple/00manifest.i
   deepclone/.hg/store/meta/b/foo/apple/bees
   deepclone/.hg/store/meta/b/foo/apple/bees/00manifest.i
   deepclone/.hg/store/meta/~2e_a (reporevlogstore !)
   deepclone/.hg/store/meta/~2e_a/00manifest.i (reporevlogstore !)
 Verify passes.
   $ cd deepclone
   $ hg verify -q
   $ cd ..
 
 #if reporevlogstore
 Create clones using old repo formats to use in later tests
   $ hg clone --config format.usestore=False \
   >   --config experimental.changegroup3=True \
   >   http://localhost:$HGPORT deeprepo-basicstore
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 18 changes to 8 files
   new changesets 775704be6f52:523e5c631710
   updating to branch default
   8 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg -R deeprepo-basicstore debugrequires | grep store
   [1]
   $ hg -R deeprepo-basicstore serve -p $HGPORT1 -d \
   >   --pid-file=port-1-hg.pid \
   >   --errorlog=port-1-errors.log
   $ cat port-1-hg.pid >> $DAEMON_PIDS
 
   $ hg clone --config format.usefncache=False \
   >   --config experimental.changegroup3=True \
   >   http://localhost:$HGPORT deeprepo-encodedstore
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 18 changes to 8 files
   new changesets 775704be6f52:523e5c631710
   updating to branch default
   8 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg -R deeprepo-encodedstore debugrequires | grep fncache
   [1]
   $ hg -R deeprepo-encodedstore serve -p $HGPORT2 -d \
   >   --pid-file=port-2-hg.pid \
   >   --errorlog=port-2-errors.log
   $ cat port-2-hg.pid >> $DAEMON_PIDS
 
 Local clone with basicstore
   $ hg clone -U deeprepo-basicstore local-clone-basicstore
   $ hg -R local-clone-basicstore verify -q
 
 Local clone with encodedstore
   $ hg clone -U deeprepo-encodedstore local-clone-encodedstore
   $ hg -R local-clone-encodedstore verify -q
 
 Local clone with fncachestore
   $ hg clone -U deeprepo local-clone-fncachestore
   $ hg -R local-clone-fncachestore verify -q
 
 Stream clone with basicstore
   $ hg clone --config experimental.changegroup3=True --stream -U \
   >   http://localhost:$HGPORT1 stream-clone-basicstore
   streaming all changes
   28 files to transfer, * of data (glob)
   transferred * in * seconds (*) (glob)
   $ hg -R stream-clone-basicstore verify -q
   $ cat port-1-errors.log
 
 Stream clone with encodedstore
   $ hg clone --config experimental.changegroup3=True --stream -U \
   >   http://localhost:$HGPORT2 stream-clone-encodedstore
   streaming all changes
   28 files to transfer, * of data (glob)
   transferred * in * seconds (*) (glob)
   $ hg -R stream-clone-encodedstore verify -q
   $ cat port-2-errors.log
 
 Stream clone with fncachestore
   $ hg clone --config experimental.changegroup3=True --stream -U \
   >   http://localhost:$HGPORT stream-clone-fncachestore
   streaming all changes
   22 files to transfer, * of data (glob)
   transferred * in * seconds (*) (glob)
   $ hg -R stream-clone-fncachestore verify -q
   $ cat port-0-errors.log
 
 Packed bundle
   $ hg -R deeprepo debugcreatestreamclonebundle repo-packed.hg
   writing 5330 bytes for 18 files (no-zstd !)
   writing 5400 bytes for 18 files (zstd !)
   bundle requirements:.* treemanifest(,.*)? (re)
   $ hg debugbundle --spec repo-packed.hg
   none-packed1;requirements%3D(.*%2C)?treemanifest(%2C.*)? (re)
 
 #endif
 
 Bundle with changegroup2 is not supported
 
   $ hg -R deeprepo bundle --all -t v2 deeprepo.bundle
   abort: repository does not support bundle version 02
   [255]
 
 Pull does not include changegroup for manifest the client already has from
 other branch
 
   $ mkdir grafted-dir-repo
   $ cd grafted-dir-repo
   $ hg --config experimental.treemanifest=1 init
   $ mkdir dir
   $ echo a > dir/file
   $ echo a > file
   $ hg ci -Am initial
   adding dir/file
   adding file
   $ echo b > dir/file
   $ hg ci -m updated
   $ hg co '.^'
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg revert -r tip dir/
   reverting dir/file
   $ echo b > file # to make sure root manifest is sent
   $ hg ci -m grafted
   created new head
   $ cd ..
 
   $ hg --config experimental.treemanifest=1 clone --pull -r 1 \
   >   grafted-dir-repo grafted-dir-repo-clone
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 3 changes to 2 files
   new changesets d84f4c419457:09ab742f3b0f
   updating to branch default
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd grafted-dir-repo-clone
   $ hg pull -r 2
   pulling from $TESTTMP/grafted-dir-repo
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
   new changesets 73699489fb7c
   (run 'hg heads' to see heads, 'hg merge' to merge)
 
 Committing a empty commit does not duplicate root treemanifest
   $ echo z >> z
   $ hg commit -Aqm 'pre-empty commit'
   $ hg rm z
   $ hg commit --amend -m 'empty commit'
   saved backup bundle to $TESTTMP/grafted-dir-repo-clone/.hg/strip-backup/cb99d5717cea-9e3b6b02-amend.hg
   $ hg log -r 'tip + tip^' -T '{manifest}\n'
   1:678d3574b88c
   1:678d3574b88c
   $ hg --config extensions.strip= strip -r . -q
+
+Testing repository upgrade
+--------------------------
+
+  $ for x in 1 2 3 4 5 6 7 8 9; do
+  >    echo $x > file-$x # make sure we have interresting compression
+  >    echo $x > dir/foo-$x # make sure we have interresting compression
+  >    hg add file-$x
+  >    hg add dir/foo-$x
+  > done
+  $ hg ci -m 'have some content'
+  $ f -s .hg/store/00manifest.*
+  .hg/store/00manifest.i: size=798 (no-pure !)
+  .hg/store/00manifest.i: size=784 (pure !)
+  $ f -s .hg/store/meta/dir/00manifest*
+  .hg/store/meta/dir/00manifest.i: size=556 (no-pure !)
+  .hg/store/meta/dir/00manifest.i: size=544 (pure !)
+  $ hg debugupgraderepo --config format.revlog-compression=none --config experimental.treemanifest=yes --run --quiet --no-backup
+  upgrade will perform the following actions:
+  
+  requirements
+     preserved: * (glob)
+     removed: revlog-compression-zstd (no-pure !)
+     added: exp-compression-none
+  
+  processed revlogs:
+    - all-filelogs
+    - changelog
+    - manifest
+  
+  $ hg verify
+  checking changesets
+  checking manifests
+  checking directory manifests
+  crosschecking files in changesets and manifests
+  checking files
+  checking dirstate
+  checked 4 changesets with 22 changes to 20 files
+  $ f -s .hg/store/00manifest.*
+  .hg/store/00manifest.i: size=1002
+  $ f -s .hg/store/meta/dir/00manifest*
+  .hg/store/meta/dir/00manifest.i: size=721
+  $ hg files --rev tip | wc -l
+  \s*20 (re)

tests/test-upgrade-repo.t

@@ -1,2101 +1,2101 b''
 #require no-reposimplestore
 
   $ cat >> $HGRCPATH << EOF
   > [extensions]
   > share =
   > [format]
   > # stabilize test accross variant
   > revlog-compression=zlib
   > [storage]
   > dirstate-v2.slow-path=allow
   > EOF
 
 store and revlogv1 are required in source
 
   $ hg --config format.usestore=false init no-store
   $ hg -R no-store debugupgraderepo
   abort: cannot upgrade repository; requirement missing: store
   [255]
 
   $ hg init no-revlogv1
   $ cat > no-revlogv1/.hg/requires << EOF
   > dotencode
   > fncache
   > generaldelta
   > store
   > EOF
 
   $ hg -R no-revlogv1 debugupgraderepo
   abort: cannot upgrade repository; missing a revlog version
   [255]
 
 Cannot upgrade shared repositories
 
   $ hg init share-parent
   $ hg -R share-parent debugbuilddag -n .+9
   $ hg -R share-parent up tip
   10 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg -q share share-parent share-child
 
   $ hg -R share-child debugupgraderepo --config format.sparse-revlog=no
   abort: cannot use these actions on a share repository: sparserevlog
   (upgrade the main repository directly)
   [255]
 
 Unless the action is compatible with share
 
   $ hg -R share-child debugupgraderepo --config format.use-dirstate-v2=yes --quiet
   requirements
      preserved: * (glob)
      added: dirstate-v2
   
   no revlogs to process
   
 
   $ hg -R share-child debugupgraderepo --config format.use-dirstate-v2=yes --quiet --run
   upgrade will perform the following actions:
   
   requirements
      preserved: * (glob)
      added: dirstate-v2
   
   no revlogs to process
   
   $ hg debugformat -R share-child | grep dirstate-v2
   dirstate-v2:        yes
   $ hg debugformat -R share-parent | grep dirstate-v2
   dirstate-v2:         no
   $ hg status --all -R share-child
   C nf0
   C nf1
   C nf2
   C nf3
   C nf4
   C nf5
   C nf6
   C nf7
   C nf8
   C nf9
   $ hg log -l 3 -R share-child
   changeset:   9:0059eb38e4a4
   tag:         tip
   user:        debugbuilddag
   date:        Thu Jan 01 00:00:09 1970 +0000
   summary:     r9
   
   changeset:   8:4d5be70c8130
   user:        debugbuilddag
   date:        Thu Jan 01 00:00:08 1970 +0000
   summary:     r8
   
   changeset:   7:e60bfe72517e
   user:        debugbuilddag
   date:        Thu Jan 01 00:00:07 1970 +0000
   summary:     r7
   
   $ hg status --all -R share-parent
   C nf0
   C nf1
   C nf2
   C nf3
   C nf4
   C nf5
   C nf6
   C nf7
   C nf8
   C nf9
   $ hg log -l 3 -R share-parent
   changeset:   9:0059eb38e4a4
   tag:         tip
   user:        debugbuilddag
   date:        Thu Jan 01 00:00:09 1970 +0000
   summary:     r9
   
   changeset:   8:4d5be70c8130
   user:        debugbuilddag
   date:        Thu Jan 01 00:00:08 1970 +0000
   summary:     r8
   
   changeset:   7:e60bfe72517e
   user:        debugbuilddag
   date:        Thu Jan 01 00:00:07 1970 +0000
   summary:     r7
   
 
   $ hg -R share-child debugupgraderepo --config format.use-dirstate-v2=no --quiet --run
   upgrade will perform the following actions:
   
   requirements
      preserved: * (glob)
      removed: dirstate-v2
   
   no revlogs to process
   
   $ hg debugformat -R share-child | grep dirstate-v2
   dirstate-v2:         no
   $ hg debugformat -R share-parent | grep dirstate-v2
   dirstate-v2:         no
   $ hg status --all -R share-child
   C nf0
   C nf1
   C nf2
   C nf3
   C nf4
   C nf5
   C nf6
   C nf7
   C nf8
   C nf9
   $ hg log -l 3 -R share-child
   changeset:   9:0059eb38e4a4
   tag:         tip
   user:        debugbuilddag
   date:        Thu Jan 01 00:00:09 1970 +0000
   summary:     r9
   
   changeset:   8:4d5be70c8130
   user:        debugbuilddag
   date:        Thu Jan 01 00:00:08 1970 +0000
   summary:     r8
   
   changeset:   7:e60bfe72517e
   user:        debugbuilddag
   date:        Thu Jan 01 00:00:07 1970 +0000
   summary:     r7
   
   $ hg status --all -R share-parent
   C nf0
   C nf1
   C nf2
   C nf3
   C nf4
   C nf5
   C nf6
   C nf7
   C nf8
   C nf9
   $ hg log -l 3 -R share-parent
   changeset:   9:0059eb38e4a4
   tag:         tip
   user:        debugbuilddag
   date:        Thu Jan 01 00:00:09 1970 +0000
   summary:     r9
   
   changeset:   8:4d5be70c8130
   user:        debugbuilddag
   date:        Thu Jan 01 00:00:08 1970 +0000
   summary:     r8
   
   changeset:   7:e60bfe72517e
   user:        debugbuilddag
   date:        Thu Jan 01 00:00:07 1970 +0000
   summary:     r7
   
 
-Do not yet support upgrading treemanifest repos
+Do not yet support downgrading treemanifest repos
 
   $ hg --config experimental.treemanifest=true init treemanifest
   $ hg -R treemanifest debugupgraderepo
-  abort: cannot upgrade repository; unsupported source requirement: treemanifest
+  abort: cannot upgrade repository; requirement would be removed: treemanifest
   [255]
 
 Cannot add treemanifest requirement during upgrade
 
   $ hg init disallowaddedreq
   $ hg -R disallowaddedreq --config experimental.treemanifest=true debugupgraderepo
   abort: cannot upgrade repository; do not support adding requirement: treemanifest
   [255]
 
 An upgrade of a repository created with recommended settings only suggests optimizations
 
   $ hg init empty
   $ cd empty
   $ hg debugformat
   format-variant     repo
   fncache:            yes
   dirstate-v2:         no
   tracked-hint:        no
   dotencode:          yes
   generaldelta:       yes
   share-safe:         yes
   sparserevlog:       yes
   persistent-nodemap:  no (no-rust !)
   persistent-nodemap: yes (rust !)
   copies-sdc:          no
   revlog-v2:           no
   changelog-v2:        no
   plain-cl-delta:     yes
   compression:        zlib
   compression-level:  default
   $ hg debugformat --verbose
   format-variant     repo config default
   fncache:            yes    yes     yes
   dirstate-v2:         no     no      no
   tracked-hint:        no     no      no
   dotencode:          yes    yes     yes
   generaldelta:       yes    yes     yes
   share-safe:         yes    yes     yes
   sparserevlog:       yes    yes     yes
   persistent-nodemap:  no     no      no (no-rust !)
   persistent-nodemap: yes    yes      no (rust !)
   copies-sdc:          no     no      no
   revlog-v2:           no     no      no
   changelog-v2:        no     no      no
   plain-cl-delta:     yes    yes     yes
   compression:        zlib   zlib    zlib (no-zstd !)
   compression:        zlib   zlib    zstd (zstd !)
   compression-level:  default default default
   $ hg debugformat --verbose --config format.usefncache=no
   format-variant     repo config default
   fncache:            yes     no     yes
   dirstate-v2:         no     no      no
   tracked-hint:        no     no      no
   dotencode:          yes     no     yes
   generaldelta:       yes    yes     yes
   share-safe:         yes    yes     yes
   sparserevlog:       yes    yes     yes
   persistent-nodemap:  no     no      no (no-rust !)
   persistent-nodemap: yes    yes      no (rust !)
   copies-sdc:          no     no      no
   revlog-v2:           no     no      no
   changelog-v2:        no     no      no
   plain-cl-delta:     yes    yes     yes
   compression:        zlib   zlib    zlib (no-zstd !)
   compression:        zlib   zlib    zstd (zstd !)
   compression-level:  default default default
   $ hg debugformat --verbose --config format.usefncache=no --color=debug
   format-variant     repo config default
   [formatvariant.name.mismatchconfig|fncache:           ][formatvariant.repo.mismatchconfig| yes][formatvariant.config.special|     no][formatvariant.default|     yes]
   [formatvariant.name.uptodate|dirstate-v2:       ][formatvariant.repo.uptodate|  no][formatvariant.config.default|     no][formatvariant.default|      no]
   [formatvariant.name.uptodate|tracked-hint:      ][formatvariant.repo.uptodate|  no][formatvariant.config.default|     no][formatvariant.default|      no]
   [formatvariant.name.mismatchconfig|dotencode:         ][formatvariant.repo.mismatchconfig| yes][formatvariant.config.special|     no][formatvariant.default|     yes]
   [formatvariant.name.uptodate|generaldelta:      ][formatvariant.repo.uptodate| yes][formatvariant.config.default|    yes][formatvariant.default|     yes]
   [formatvariant.name.uptodate|share-safe:        ][formatvariant.repo.uptodate| yes][formatvariant.config.default|    yes][formatvariant.default|     yes]
   [formatvariant.name.uptodate|sparserevlog:      ][formatvariant.repo.uptodate| yes][formatvariant.config.default|    yes][formatvariant.default|     yes]
   [formatvariant.name.uptodate|persistent-nodemap:][formatvariant.repo.uptodate|  no][formatvariant.config.default|     no][formatvariant.default|      no] (no-rust !)
   [formatvariant.name.mismatchdefault|persistent-nodemap:][formatvariant.repo.mismatchdefault| yes][formatvariant.config.special|    yes][formatvariant.default|      no] (rust !)
   [formatvariant.name.uptodate|copies-sdc:        ][formatvariant.repo.uptodate|  no][formatvariant.config.default|     no][formatvariant.default|      no]
   [formatvariant.name.uptodate|revlog-v2:         ][formatvariant.repo.uptodate|  no][formatvariant.config.default|     no][formatvariant.default|      no]
   [formatvariant.name.uptodate|changelog-v2:      ][formatvariant.repo.uptodate|  no][formatvariant.config.default|     no][formatvariant.default|      no]
   [formatvariant.name.uptodate|plain-cl-delta:    ][formatvariant.repo.uptodate| yes][formatvariant.config.default|    yes][formatvariant.default|     yes]
   [formatvariant.name.uptodate|compression:       ][formatvariant.repo.uptodate| zlib][formatvariant.config.default|   zlib][formatvariant.default|    zlib] (no-zstd !)
   [formatvariant.name.mismatchdefault|compression:       ][formatvariant.repo.mismatchdefault| zlib][formatvariant.config.special|   zlib][formatvariant.default|    zstd] (zstd !)
   [formatvariant.name.uptodate|compression-level: ][formatvariant.repo.uptodate| default][formatvariant.config.default| default][formatvariant.default| default]
   $ hg debugformat -Tjson
   [
    {
     "config": true,
     "default": true,
     "name": "fncache",
     "repo": true
    },
    {
     "config": false,
     "default": false,
     "name": "dirstate-v2",
     "repo": false
    },
    {
     "config": false,
     "default": false,
     "name": "tracked-hint",
     "repo": false
    },
    {
     "config": true,
     "default": true,
     "name": "dotencode",
     "repo": true
    },
    {
     "config": true,
     "default": true,
     "name": "generaldelta",
     "repo": true
    },
    {
     "config": true,
     "default": true,
     "name": "share-safe",
     "repo": true
    },
    {
     "config": true,
     "default": true,
     "name": "sparserevlog",
     "repo": true
    },
    {
     "config": false, (no-rust !)
     "config": true, (rust !)
     "default": false,
     "name": "persistent-nodemap",
     "repo": false (no-rust !)
     "repo": true (rust !)
    },
    {
     "config": false,
     "default": false,
     "name": "copies-sdc",
     "repo": false
    },
    {
     "config": false,
     "default": false,
     "name": "revlog-v2",
     "repo": false
    },
    {
     "config": false,
     "default": false,
     "name": "changelog-v2",
     "repo": false
    },
    {
     "config": true,
     "default": true,
     "name": "plain-cl-delta",
     "repo": true
    },
    {
     "config": "zlib",
     "default": "zlib", (no-zstd !)
     "default": "zstd", (zstd !)
     "name": "compression",
     "repo": "zlib"
    },
    {
     "config": "default",
     "default": "default",
     "name": "compression-level",
     "repo": "default"
    }
   ]
   $ hg debugupgraderepo
   (no format upgrades found in existing repository)
   performing an upgrade with "--run" will make the following changes:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (rust !)
   
   no revlogs to process
   
   additional optimizations are available by specifying "--optimize <name>":
   
   re-delta-parent
      deltas within internal storage will be recalculated to choose an optimal base revision where this was not already done; the size of the repository may shrink and various operations may become faster; the first time this optimization is performed could slow down upgrade execution considerably; subsequent invocations should not run noticeably slower
   
   re-delta-multibase
      deltas within internal storage will be recalculated against multiple base revision and the smallest difference will be used; the size of the repository may shrink significantly when there are many merges; this optimization will slow down execution in proportion to the number of merges in the repository and the amount of files in the repository; this slow down should not be significant unless there are tens of thousands of files and thousands of merges
   
   re-delta-all
      deltas within internal storage will always be recalculated without reusing prior deltas; this will likely make execution run several times slower; this optimization is typically not needed
   
   re-delta-fulladd
      every revision will be re-added as if it was new content. It will go through the full storage mechanism giving extensions a chance to process it (eg. lfs). This is similar to "re-delta-all" but even slower since more logic is involved.
   
 
   $ hg debugupgraderepo --quiet
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (rust !)
   
   no revlogs to process
   
 
 --optimize can be used to add optimizations
 
   $ hg debugupgrade --optimize 're-delta-parent'
   (no format upgrades found in existing repository)
   performing an upgrade with "--run" will make the following changes:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (rust !)
   
   optimisations: re-delta-parent
   
   re-delta-parent
      deltas within internal storage will choose a new base revision if needed
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   additional optimizations are available by specifying "--optimize <name>":
   
   re-delta-multibase
      deltas within internal storage will be recalculated against multiple base revision and the smallest difference will be used; the size of the repository may shrink significantly when there are many merges; this optimization will slow down execution in proportion to the number of merges in the repository and the amount of files in the repository; this slow down should not be significant unless there are tens of thousands of files and thousands of merges
   
   re-delta-all
      deltas within internal storage will always be recalculated without reusing prior deltas; this will likely make execution run several times slower; this optimization is typically not needed
   
   re-delta-fulladd
      every revision will be re-added as if it was new content. It will go through the full storage mechanism giving extensions a chance to process it (eg. lfs). This is similar to "re-delta-all" but even slower since more logic is involved.
   
 
 modern form of the option
 
   $ hg debugupgrade --optimize re-delta-parent
   (no format upgrades found in existing repository)
   performing an upgrade with "--run" will make the following changes:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (rust !)
   
   optimisations: re-delta-parent
   
   re-delta-parent
      deltas within internal storage will choose a new base revision if needed
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   additional optimizations are available by specifying "--optimize <name>":
   
   re-delta-multibase
      deltas within internal storage will be recalculated against multiple base revision and the smallest difference will be used; the size of the repository may shrink significantly when there are many merges; this optimization will slow down execution in proportion to the number of merges in the repository and the amount of files in the repository; this slow down should not be significant unless there are tens of thousands of files and thousands of merges
   
   re-delta-all
      deltas within internal storage will always be recalculated without reusing prior deltas; this will likely make execution run several times slower; this optimization is typically not needed
   
   re-delta-fulladd
      every revision will be re-added as if it was new content. It will go through the full storage mechanism giving extensions a chance to process it (eg. lfs). This is similar to "re-delta-all" but even slower since more logic is involved.
   
 
   $ hg debugupgrade --optimize re-delta-parent --quiet
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (rust !)
   
   optimisations: re-delta-parent
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
 
 passing multiple optimization:
 
   $ hg debugupgrade --optimize re-delta-parent --optimize re-delta-multibase --quiet
   requirements
      preserved: * (glob)
   
   optimisations: re-delta-multibase, re-delta-parent
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
 
 unknown optimization:
 
   $ hg debugupgrade --optimize foobar
   abort: unknown optimization action requested: foobar
   (run without arguments to see valid optimizations)
   [255]
 
 Various sub-optimal detections work
 
   $ cat > .hg/requires << EOF
   > revlogv1
   > store
   > EOF
 
   $ hg debugformat
   format-variant     repo
   fncache:             no
   dirstate-v2:         no
   tracked-hint:        no
   dotencode:           no
   generaldelta:        no
   share-safe:          no
   sparserevlog:        no
   persistent-nodemap:  no
   copies-sdc:          no
   revlog-v2:           no
   changelog-v2:        no
   plain-cl-delta:     yes
   compression:        zlib
   compression-level:  default
   $ hg debugformat --verbose
   format-variant     repo config default
   fncache:             no    yes     yes
   dirstate-v2:         no     no      no
   tracked-hint:        no     no      no
   dotencode:           no    yes     yes
   generaldelta:        no    yes     yes
   share-safe:          no    yes     yes
   sparserevlog:        no    yes     yes
   persistent-nodemap:  no     no      no (no-rust !)
   persistent-nodemap:  no    yes      no (rust !)
   copies-sdc:          no     no      no
   revlog-v2:           no     no      no
   changelog-v2:        no     no      no
   plain-cl-delta:     yes    yes     yes
   compression:        zlib   zlib    zlib (no-zstd !)
   compression:        zlib   zlib    zstd (zstd !)
   compression-level:  default default default
   $ hg debugformat --verbose --config format.usegeneraldelta=no
   format-variant     repo config default
   fncache:             no    yes     yes
   dirstate-v2:         no     no      no
   tracked-hint:        no     no      no
   dotencode:           no    yes     yes
   generaldelta:        no     no     yes
   share-safe:          no    yes     yes
   sparserevlog:        no     no     yes
   persistent-nodemap:  no     no      no (no-rust !)
   persistent-nodemap:  no    yes      no (rust !)
   copies-sdc:          no     no      no
   revlog-v2:           no     no      no
   changelog-v2:        no     no      no
   plain-cl-delta:     yes    yes     yes
   compression:        zlib   zlib    zlib (no-zstd !)
   compression:        zlib   zlib    zstd (zstd !)
   compression-level:  default default default
   $ hg debugformat --verbose --config format.usegeneraldelta=no --color=debug
   format-variant     repo config default
   [formatvariant.name.mismatchconfig|fncache:           ][formatvariant.repo.mismatchconfig|  no][formatvariant.config.default|    yes][formatvariant.default|     yes]
   [formatvariant.name.uptodate|dirstate-v2:       ][formatvariant.repo.uptodate|  no][formatvariant.config.default|     no][formatvariant.default|      no]
   [formatvariant.name.uptodate|tracked-hint:      ][formatvariant.repo.uptodate|  no][formatvariant.config.default|     no][formatvariant.default|      no]
   [formatvariant.name.mismatchconfig|dotencode:         ][formatvariant.repo.mismatchconfig|  no][formatvariant.config.default|    yes][formatvariant.default|     yes]
   [formatvariant.name.mismatchdefault|generaldelta:      ][formatvariant.repo.mismatchdefault|  no][formatvariant.config.special|     no][formatvariant.default|     yes]
   [formatvariant.name.mismatchconfig|share-safe:        ][formatvariant.repo.mismatchconfig|  no][formatvariant.config.default|    yes][formatvariant.default|     yes]
   [formatvariant.name.mismatchdefault|sparserevlog:      ][formatvariant.repo.mismatchdefault|  no][formatvariant.config.special|     no][formatvariant.default|     yes]
   [formatvariant.name.uptodate|persistent-nodemap:][formatvariant.repo.uptodate|  no][formatvariant.config.default|     no][formatvariant.default|      no] (no-rust !)
   [formatvariant.name.mismatchconfig|persistent-nodemap:][formatvariant.repo.mismatchconfig|  no][formatvariant.config.special|    yes][formatvariant.default|      no] (rust !)
   [formatvariant.name.uptodate|copies-sdc:        ][formatvariant.repo.uptodate|  no][formatvariant.config.default|     no][formatvariant.default|      no]
   [formatvariant.name.uptodate|revlog-v2:         ][formatvariant.repo.uptodate|  no][formatvariant.config.default|     no][formatvariant.default|      no]
   [formatvariant.name.uptodate|changelog-v2:      ][formatvariant.repo.uptodate|  no][formatvariant.config.default|     no][formatvariant.default|      no]
   [formatvariant.name.uptodate|plain-cl-delta:    ][formatvariant.repo.uptodate| yes][formatvariant.config.default|    yes][formatvariant.default|     yes]
   [formatvariant.name.uptodate|compression:       ][formatvariant.repo.uptodate| zlib][formatvariant.config.default|   zlib][formatvariant.default|    zlib] (no-zstd !)
   [formatvariant.name.mismatchdefault|compression:       ][formatvariant.repo.mismatchdefault| zlib][formatvariant.config.special|   zlib][formatvariant.default|    zstd] (zstd !)
   [formatvariant.name.uptodate|compression-level: ][formatvariant.repo.uptodate| default][formatvariant.config.default| default][formatvariant.default| default]
   $ hg debugupgraderepo
   note:    selecting all-filelogs for processing to change: dotencode
   note:    selecting all-manifestlogs for processing to change: dotencode
   note:    selecting changelog for processing to change: dotencode
   
   repository lacks features recommended by current config options:
   
   fncache
      long and reserved filenames may not work correctly; repository performance is sub-optimal
   
   dotencode
      storage of filenames beginning with a period or space may not work correctly
   
   generaldelta
      deltas within internal storage are unable to choose optimal revisions; repository is larger and slower than it could be; interaction with other repositories may require extra network and CPU resources, making "hg push" and "hg pull" slower
   
   share-safe
      old shared repositories do not share source repository requirements and config. This leads to various problems when the source repository format is upgraded or some new extensions are enabled.
   
   sparserevlog
      in order to limit disk reading and memory usage on older version, the span of a delta chain from its root to its end is limited, whatever the relevant data in this span. This can severly limit Mercurial ability to build good chain of delta resulting is much more storage space being taken and limit reusability of on disk delta during exchange.
   
   persistent-nodemap (rust !)
      persist the node -> rev mapping on disk to speedup lookup (rust !)
    (rust !)
   
   performing an upgrade with "--run" will make the following changes:
   
   requirements
      preserved: revlogv1, store
      added: dotencode, fncache, generaldelta, share-safe, sparserevlog (no-rust !)
      added: dotencode, fncache, generaldelta, persistent-nodemap, share-safe, sparserevlog (rust !)
   
   fncache
      repository will be more resilient to storing certain paths and performance of certain operations should be improved
   
   dotencode
      repository will be better able to store files beginning with a space or period
   
   generaldelta
      repository storage will be able to create optimal deltas; new repository data will be smaller and read times should decrease; interacting with other repositories using this storage model should require less network and CPU resources, making "hg push" and "hg pull" faster
   
   share-safe
      Upgrades a repository to share-safe format so that future shares of this repository share its requirements and configs.
   
   sparserevlog
      Revlog supports delta chain with more unused data between payload. These gaps will be skipped at read time. This allows for better delta chains, making a better compression and faster exchange with server.
   
   persistent-nodemap (rust !)
      Speedup revision lookup by node id. (rust !)
    (rust !)
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   additional optimizations are available by specifying "--optimize <name>":
   
   re-delta-parent
      deltas within internal storage will be recalculated to choose an optimal base revision where this was not already done; the size of the repository may shrink and various operations may become faster; the first time this optimization is performed could slow down upgrade execution considerably; subsequent invocations should not run noticeably slower
   
   re-delta-multibase
      deltas within internal storage will be recalculated against multiple base revision and the smallest difference will be used; the size of the repository may shrink significantly when there are many merges; this optimization will slow down execution in proportion to the number of merges in the repository and the amount of files in the repository; this slow down should not be significant unless there are tens of thousands of files and thousands of merges
   
   re-delta-all
      deltas within internal storage will always be recalculated without reusing prior deltas; this will likely make execution run several times slower; this optimization is typically not needed
   
   re-delta-fulladd
      every revision will be re-added as if it was new content. It will go through the full storage mechanism giving extensions a chance to process it (eg. lfs). This is similar to "re-delta-all" but even slower since more logic is involved.
   
   $ hg debugupgraderepo --quiet
   requirements
      preserved: revlogv1, store
      added: dotencode, fncache, generaldelta, share-safe, sparserevlog (no-rust !)
      added: dotencode, fncache, generaldelta, persistent-nodemap, share-safe, sparserevlog (rust !)
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
 
   $ hg --config format.dotencode=false debugupgraderepo
   note:    selecting all-filelogs for processing to change: fncache
   note:    selecting all-manifestlogs for processing to change: fncache
   note:    selecting changelog for processing to change: fncache
   
   repository lacks features recommended by current config options:
   
   fncache
      long and reserved filenames may not work correctly; repository performance is sub-optimal
   
   generaldelta
      deltas within internal storage are unable to choose optimal revisions; repository is larger and slower than it could be; interaction with other repositories may require extra network and CPU resources, making "hg push" and "hg pull" slower
   
   share-safe
      old shared repositories do not share source repository requirements and config. This leads to various problems when the source repository format is upgraded or some new extensions are enabled.
   
   sparserevlog
      in order to limit disk reading and memory usage on older version, the span of a delta chain from its root to its end is limited, whatever the relevant data in this span. This can severly limit Mercurial ability to build good chain of delta resulting is much more storage space being taken and limit reusability of on disk delta during exchange.
   
   persistent-nodemap (rust !)
      persist the node -> rev mapping on disk to speedup lookup (rust !)
    (rust !)
   repository lacks features used by the default config options:
   
   dotencode
      storage of filenames beginning with a period or space may not work correctly
   
   
   performing an upgrade with "--run" will make the following changes:
   
   requirements
      preserved: revlogv1, store
      added: fncache, generaldelta, share-safe, sparserevlog (no-rust !)
      added: fncache, generaldelta, persistent-nodemap, share-safe, sparserevlog (rust !)
   
   fncache
      repository will be more resilient to storing certain paths and performance of certain operations should be improved
   
   generaldelta
      repository storage will be able to create optimal deltas; new repository data will be smaller and read times should decrease; interacting with other repositories using this storage model should require less network and CPU resources, making "hg push" and "hg pull" faster
   
   share-safe
      Upgrades a repository to share-safe format so that future shares of this repository share its requirements and configs.
   
   sparserevlog
      Revlog supports delta chain with more unused data between payload. These gaps will be skipped at read time. This allows for better delta chains, making a better compression and faster exchange with server.
   
   persistent-nodemap (rust !)
      Speedup revision lookup by node id. (rust !)
    (rust !)
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   additional optimizations are available by specifying "--optimize <name>":
   
   re-delta-parent
      deltas within internal storage will be recalculated to choose an optimal base revision where this was not already done; the size of the repository may shrink and various operations may become faster; the first time this optimization is performed could slow down upgrade execution considerably; subsequent invocations should not run noticeably slower
   
   re-delta-multibase
      deltas within internal storage will be recalculated against multiple base revision and the smallest difference will be used; the size of the repository may shrink significantly when there are many merges; this optimization will slow down execution in proportion to the number of merges in the repository and the amount of files in the repository; this slow down should not be significant unless there are tens of thousands of files and thousands of merges
   
   re-delta-all
      deltas within internal storage will always be recalculated without reusing prior deltas; this will likely make execution run several times slower; this optimization is typically not needed
   
   re-delta-fulladd
      every revision will be re-added as if it was new content. It will go through the full storage mechanism giving extensions a chance to process it (eg. lfs). This is similar to "re-delta-all" but even slower since more logic is involved.
   
 
   $ cd ..
 
 Upgrading a repository that is already modern essentially no-ops
 
   $ hg init modern
   $ hg -R modern debugupgraderepo --run
   nothing to do
 
 Upgrading a repository to generaldelta works
 
   $ hg --config format.usegeneraldelta=false init upgradegd
   $ cd upgradegd
   $ touch f0
   $ hg -q commit -A -m initial
   $ mkdir FooBarDirectory.d
   $ touch FooBarDirectory.d/f1
   $ hg -q commit -A -m 'add f1'
   $ hg -q up -r 0
   >>> import random
   >>> random.seed(0) # have a reproducible content
   >>> with open("f2", "wb") as f:
   ...     for i in range(100000):
   ...         f.write(b"%d\n" % random.randint(1000000000, 9999999999)) and None
   $ hg -q commit -A -m 'add f2'
 
 make sure we have a .d file
 
   $ ls -d .hg/store/data/*
   .hg/store/data/_foo_bar_directory.d.hg
   .hg/store/data/f0.i
   .hg/store/data/f2.d
   .hg/store/data/f2.i
 
   $ hg debugupgraderepo --run --config format.sparse-revlog=false
   note:    selecting all-filelogs for processing to change: generaldelta
   note:    selecting all-manifestlogs for processing to change: generaldelta
   note:    selecting changelog for processing to change: generaldelta
   
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, revlogv1, share-safe, store (no-rust !)
      preserved: dotencode, fncache, persistent-nodemap, revlogv1, share-safe, store (rust !)
      added: generaldelta
   
   generaldelta
      repository storage will be able to create optimal deltas; new repository data will be smaller and read times should decrease; interacting with other repositories using this storage model should require less network and CPU resources, making "hg push" and "hg pull" faster
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
   migrating 519 KB in store; 1.05 MB tracked data
   migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
   finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
   migrating 1 manifests containing 3 revisions (384 bytes in store; 238 bytes tracked data)
   finished migrating 3 manifest revisions across 1 manifests; change in size: -17 bytes
   migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
   finished migrating 3 changelog revisions; change in size: 0 bytes
   finished migrating 9 total revisions; total change in store size: -17 bytes
   copying phaseroots
   copying requires
   data fully upgraded in a temporary repository
   marking source repository as being upgraded; clients will be unable to read from repository
   starting in-place swap of repository data
   replaced files will be backed up at $TESTTMP/upgradegd/.hg/upgradebackup.* (glob)
   replacing store...
   store replacement complete; repository was inconsistent for *s (glob)
   finalizing requirements file and making repository readable again
   removing temporary repository $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   copy of old repository backed up at $TESTTMP/upgradegd/.hg/upgradebackup.* (glob)
   the old repository will not be deleted; remove it to free up disk space once the upgraded repository is verified
 
 Original requirements backed up
 
   $ cat .hg/upgradebackup.*/requires
   share-safe
   $ cat .hg/upgradebackup.*/store/requires
   dotencode
   fncache
   persistent-nodemap (rust !)
   revlogv1
   store
   upgradeinprogress
 
 generaldelta added to original requirements files
 
   $ hg debugrequires
   dotencode
   fncache
   generaldelta
   persistent-nodemap (rust !)
   revlogv1
   share-safe
   store
 
 store directory has files we expect
 
   $ ls .hg/store
   00changelog.i
   00manifest.i
   data
   fncache
   phaseroots
   requires
   undo
   undo.backupfiles
 
 manifest should be generaldelta
 
   $ hg debugrevlog -m | grep flags
   flags  : inline, generaldelta
 
 verify should be happy
 
   $ hg verify -q
 
 old store should be backed up
 
   $ ls -d .hg/upgradebackup.*/
   .hg/upgradebackup.*/ (glob)
   $ ls .hg/upgradebackup.*/store
   00changelog.i
   00manifest.i
   data
   fncache
   phaseroots
   requires
   undo
   undo.backup.fncache.bck
   undo.backupfiles
 
 unless --no-backup is passed
 
   $ rm -rf .hg/upgradebackup.*/
   $ hg debugupgraderepo --run --no-backup
   note:    selecting all-filelogs for processing to change: sparserevlog
   note:    selecting all-manifestlogs for processing to change: sparserevlog
   note:    selecting changelog for processing to change: sparserevlog
   
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, store (rust !)
      added: sparserevlog
   
   sparserevlog
      Revlog supports delta chain with more unused data between payload. These gaps will be skipped at read time. This allows for better delta chains, making a better compression and faster exchange with server.
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
   migrating 519 KB in store; 1.05 MB tracked data
   migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
   finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
   migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
   finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
   migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
   finished migrating 3 changelog revisions; change in size: 0 bytes
   finished migrating 9 total revisions; total change in store size: 0 bytes
   copying phaseroots
   copying requires
   data fully upgraded in a temporary repository
   marking source repository as being upgraded; clients will be unable to read from repository
   starting in-place swap of repository data
   replacing store...
   store replacement complete; repository was inconsistent for * (glob)
   finalizing requirements file and making repository readable again
   removing temporary repository $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   $ ls -1 .hg/ | grep upgradebackup
   [1]
 
 We can restrict optimization to some revlog:
 
   $ hg debugupgrade --optimize re-delta-parent --run --manifest --no-backup --debug --traceback
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (rust !)
   
   optimisations: re-delta-parent
   
   re-delta-parent
      deltas within internal storage will choose a new base revision if needed
   
   processed revlogs:
     - manifest
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
   migrating 519 KB in store; 1.05 MB tracked data
   migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
   blindly copying data/FooBarDirectory.d/f1.i containing 1 revisions
   blindly copying data/f0.i containing 1 revisions
   blindly copying data/f2.i containing 1 revisions
   finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
   migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
   cloning 3 revisions from 00manifest.i
   finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
   migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
   blindly copying 00changelog.i containing 3 revisions
   finished migrating 3 changelog revisions; change in size: 0 bytes
   finished migrating 9 total revisions; total change in store size: 0 bytes
   copying phaseroots
   copying requires
   data fully upgraded in a temporary repository
   marking source repository as being upgraded; clients will be unable to read from repository
   starting in-place swap of repository data
   replacing store...
   store replacement complete; repository was inconsistent for *s (glob)
   finalizing requirements file and making repository readable again
   removing temporary repository $TESTTMP/upgradegd/.hg/upgrade.* (glob)
 
 Check that the repo still works fine
 
   $ hg log -G --stat
   @  changeset:   2:fca376863211
   |  tag:         tip
   |  parent:      0:ba592bf28da2
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     add f2
   |
   |   f2 |  100000 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   |   1 files changed, 100000 insertions(+), 0 deletions(-)
   |
   | o  changeset:   1:2029ce2354e2
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     add f1
   |
   |
   o  changeset:   0:ba592bf28da2
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     initial
   
   
 
   $ hg verify -q
 
 Check we can select negatively
 
   $ hg debugupgrade --optimize re-delta-parent --run --no-manifest --no-backup --debug --traceback
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (rust !)
   
   optimisations: re-delta-parent
   
   re-delta-parent
      deltas within internal storage will choose a new base revision if needed
   
   processed revlogs:
     - all-filelogs
     - changelog
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
   migrating 519 KB in store; 1.05 MB tracked data
   migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
   cloning 1 revisions from data/FooBarDirectory.d/f1.i
   cloning 1 revisions from data/f0.i
   cloning 1 revisions from data/f2.i
   finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
   migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
   blindly copying 00manifest.i containing 3 revisions
   finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
   migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
   cloning 3 revisions from 00changelog.i
   finished migrating 3 changelog revisions; change in size: 0 bytes
   finished migrating 9 total revisions; total change in store size: 0 bytes
   copying phaseroots
   copying requires
   data fully upgraded in a temporary repository
   marking source repository as being upgraded; clients will be unable to read from repository
   starting in-place swap of repository data
   replacing store...
   store replacement complete; repository was inconsistent for *s (glob)
   finalizing requirements file and making repository readable again
   removing temporary repository $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   $ hg verify -q
 
 Check that we can select changelog only
 
   $ hg debugupgrade --optimize re-delta-parent --run --changelog --no-backup --debug --traceback
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (rust !)
   
   optimisations: re-delta-parent
   
   re-delta-parent
      deltas within internal storage will choose a new base revision if needed
   
   processed revlogs:
     - changelog
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
   migrating 519 KB in store; 1.05 MB tracked data
   migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
   blindly copying data/FooBarDirectory.d/f1.i containing 1 revisions
   blindly copying data/f0.i containing 1 revisions
   blindly copying data/f2.i containing 1 revisions
   finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
   migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
   blindly copying 00manifest.i containing 3 revisions
   finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
   migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
   cloning 3 revisions from 00changelog.i
   finished migrating 3 changelog revisions; change in size: 0 bytes
   finished migrating 9 total revisions; total change in store size: 0 bytes
   copying phaseroots
   copying requires
   data fully upgraded in a temporary repository
   marking source repository as being upgraded; clients will be unable to read from repository
   starting in-place swap of repository data
   replacing store...
   store replacement complete; repository was inconsistent for *s (glob)
   finalizing requirements file and making repository readable again
   removing temporary repository $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   $ hg verify -q
 
 Check that we can select filelog only
 
   $ hg debugupgrade --optimize re-delta-parent --run --no-changelog --no-manifest --no-backup --debug --traceback
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (rust !)
   
   optimisations: re-delta-parent
   
   re-delta-parent
      deltas within internal storage will choose a new base revision if needed
   
   processed revlogs:
     - all-filelogs
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
   migrating 519 KB in store; 1.05 MB tracked data
   migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
   cloning 1 revisions from data/FooBarDirectory.d/f1.i
   cloning 1 revisions from data/f0.i
   cloning 1 revisions from data/f2.i
   finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
   migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
   blindly copying 00manifest.i containing 3 revisions
   finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
   migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
   blindly copying 00changelog.i containing 3 revisions
   finished migrating 3 changelog revisions; change in size: 0 bytes
   finished migrating 9 total revisions; total change in store size: 0 bytes
   copying phaseroots
   copying requires
   data fully upgraded in a temporary repository
   marking source repository as being upgraded; clients will be unable to read from repository
   starting in-place swap of repository data
   replacing store...
   store replacement complete; repository was inconsistent for *s (glob)
   finalizing requirements file and making repository readable again
   removing temporary repository $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   $ hg verify -q
 
 
 Check you can't skip revlog clone during important format downgrade
 
   $ echo "[format]" > .hg/hgrc
   $ echo "sparse-revlog=no" >> .hg/hgrc
   $ hg debugupgrade --optimize re-delta-parent --no-manifest --no-backup --quiet
   warning: ignoring  --no-manifest, as upgrade is changing: sparserevlog
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, store (rust !)
      removed: sparserevlog
   
   optimisations: re-delta-parent
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   $ hg debugupgrade --optimize re-delta-parent --run --manifest --no-backup --debug --traceback
   note:    selecting all-filelogs for processing to change: sparserevlog
   note:    selecting changelog for processing to change: sparserevlog
   
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, store (rust !)
      removed: sparserevlog
   
   optimisations: re-delta-parent
   
   re-delta-parent
      deltas within internal storage will choose a new base revision if needed
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
   migrating 519 KB in store; 1.05 MB tracked data
   migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
   cloning 1 revisions from data/FooBarDirectory.d/f1.i
   cloning 1 revisions from data/f0.i
   cloning 1 revisions from data/f2.i
   finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
   migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
   cloning 3 revisions from 00manifest.i
   finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
   migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
   cloning 3 revisions from 00changelog.i
   finished migrating 3 changelog revisions; change in size: 0 bytes
   finished migrating 9 total revisions; total change in store size: 0 bytes
   copying phaseroots
   copying requires
   data fully upgraded in a temporary repository
   marking source repository as being upgraded; clients will be unable to read from repository
   starting in-place swap of repository data
   replacing store...
   store replacement complete; repository was inconsistent for *s (glob)
   finalizing requirements file and making repository readable again
   removing temporary repository $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   $ hg verify -q
 
 Check you can't skip revlog clone during important format upgrade
 
   $ echo "sparse-revlog=yes" >> .hg/hgrc
   $ hg debugupgrade --optimize re-delta-parent --run --manifest --no-backup --debug --traceback
   note:    selecting all-filelogs for processing to change: sparserevlog
   note:    selecting changelog for processing to change: sparserevlog
   
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, store (rust !)
      added: sparserevlog
   
   optimisations: re-delta-parent
   
   sparserevlog
      Revlog supports delta chain with more unused data between payload. These gaps will be skipped at read time. This allows for better delta chains, making a better compression and faster exchange with server.
   
   re-delta-parent
      deltas within internal storage will choose a new base revision if needed
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
   migrating 519 KB in store; 1.05 MB tracked data
   migrating 3 filelogs containing 3 revisions (518 KB in store; 1.05 MB tracked data)
   cloning 1 revisions from data/FooBarDirectory.d/f1.i
   cloning 1 revisions from data/f0.i
   cloning 1 revisions from data/f2.i
   finished migrating 3 filelog revisions across 3 filelogs; change in size: 0 bytes
   migrating 1 manifests containing 3 revisions (367 bytes in store; 238 bytes tracked data)
   cloning 3 revisions from 00manifest.i
   finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
   migrating changelog containing 3 revisions (394 bytes in store; 199 bytes tracked data)
   cloning 3 revisions from 00changelog.i
   finished migrating 3 changelog revisions; change in size: 0 bytes
   finished migrating 9 total revisions; total change in store size: 0 bytes
   copying phaseroots
   copying requires
   data fully upgraded in a temporary repository
   marking source repository as being upgraded; clients will be unable to read from repository
   starting in-place swap of repository data
   replacing store...
   store replacement complete; repository was inconsistent for *s (glob)
   finalizing requirements file and making repository readable again
   removing temporary repository $TESTTMP/upgradegd/.hg/upgrade.* (glob)
   $ hg verify -q
 
   $ cd ..
 
 store files with special filenames aren't encoded during copy
 
   $ hg init store-filenames
   $ cd store-filenames
   $ touch foo
   $ hg -q commit -A -m initial
   $ touch .hg/store/.XX_special_filename
 
   $ hg debugupgraderepo --run
   nothing to do
   $ hg debugupgraderepo --run --optimize 're-delta-fulladd'
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (rust !)
   
   optimisations: re-delta-fulladd
   
   re-delta-fulladd
      each revision will be added as new content to the internal storage; this will likely drastically slow down execution time, but some extensions might need it
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/store-filenames/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   migrating 3 total revisions (1 in filelogs, 1 in manifests, 1 in changelog)
   migrating 301 bytes in store; 107 bytes tracked data
   migrating 1 filelogs containing 1 revisions (64 bytes in store; 0 bytes tracked data)
   finished migrating 1 filelog revisions across 1 filelogs; change in size: 0 bytes
   migrating 1 manifests containing 1 revisions (110 bytes in store; 45 bytes tracked data)
   finished migrating 1 manifest revisions across 1 manifests; change in size: 0 bytes
   migrating changelog containing 1 revisions (127 bytes in store; 62 bytes tracked data)
   finished migrating 1 changelog revisions; change in size: 0 bytes
   finished migrating 3 total revisions; total change in store size: 0 bytes
   copying .XX_special_filename
   copying phaseroots
   copying requires
   data fully upgraded in a temporary repository
   marking source repository as being upgraded; clients will be unable to read from repository
   starting in-place swap of repository data
   replaced files will be backed up at $TESTTMP/store-filenames/.hg/upgradebackup.* (glob)
   replacing store...
   store replacement complete; repository was inconsistent for *s (glob)
   finalizing requirements file and making repository readable again
   removing temporary repository $TESTTMP/store-filenames/.hg/upgrade.* (glob)
   copy of old repository backed up at $TESTTMP/store-filenames/.hg/upgradebackup.* (glob)
   the old repository will not be deleted; remove it to free up disk space once the upgraded repository is verified
 
 fncache is valid after upgrade
 
   $ hg debugrebuildfncache
   fncache already up to date
 
   $ cd ..
 
 Check upgrading a large file repository
 ---------------------------------------
 
   $ hg init largefilesrepo
   $ cat << EOF >> largefilesrepo/.hg/hgrc
   > [extensions]
   > largefiles =
   > EOF
 
   $ cd largefilesrepo
   $ touch foo
   $ hg add --large foo
   $ hg -q commit -m initial
   $ hg debugrequires
   dotencode
   fncache
   generaldelta
   largefiles
   persistent-nodemap (rust !)
   revlogv1
   share-safe
   sparserevlog
   store
 
   $ hg debugupgraderepo --run
   nothing to do
   $ hg debugrequires
   dotencode
   fncache
   generaldelta
   largefiles
   persistent-nodemap (rust !)
   revlogv1
   share-safe
   sparserevlog
   store
 
   $ cat << EOF >> .hg/hgrc
   > [extensions]
   > lfs =
   > [lfs]
   > threshold = 10
   > EOF
   $ echo '123456789012345' > lfs.bin
   $ hg ci -Am 'lfs.bin'
   adding lfs.bin
   $ hg debugrequires | grep lfs
   lfs
   $ find .hg/store/lfs -type f
   .hg/store/lfs/objects/d0/beab232adff5ba365880366ad30b1edb85c4c5372442b5d2fe27adc96d653f
 
   $ hg debugupgraderepo --run
   nothing to do
 
   $ hg debugrequires | grep lfs
   lfs
   $ find .hg/store/lfs -type f
   .hg/store/lfs/objects/d0/beab232adff5ba365880366ad30b1edb85c4c5372442b5d2fe27adc96d653f
   $ hg verify -q
   $ hg debugdata lfs.bin 0
   version https://git-lfs.github.com/spec/v1
   oid sha256:d0beab232adff5ba365880366ad30b1edb85c4c5372442b5d2fe27adc96d653f
   size 16
   x-is-binary 0
 
   $ cd ..
 
 repository config is taken in account
 -------------------------------------
 
   $ cat << EOF >> $HGRCPATH
   > [format]
   > maxchainlen = 1
   > EOF
 
   $ hg init localconfig
   $ cd localconfig
   $ cat << EOF > file
   > some content
   > with some length
   > to make sure we get a delta
   > after changes
   > very long
   > very long
   > very long
   > very long
   > very long
   > very long
   > very long
   > very long
   > very long
   > very long
   > very long
   > EOF
   $ hg -q commit -A -m A
   $ echo "new line" >> file
   $ hg -q commit -m B
   $ echo "new line" >> file
   $ hg -q commit -m C
 
   $ cat << EOF >> .hg/hgrc
   > [format]
   > maxchainlen = 9001
   > EOF
   $ hg config format
   format.revlog-compression=$BUNDLE2_COMPRESSIONS$
   format.maxchainlen=9001
   $ hg debugdeltachain file
       rev      p1      p2  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio   readsize largestblk rddensity srchunks
         0      -1      -1       1        1       -1    base         77        182         77   0.42308        77         0    0.00000         77         77   1.00000        1
         1       0      -1       1        2        0      p1         21        191         98   0.51309        98         0    0.00000         98         98   1.00000        1
         2       1      -1       1        2        0    snap         30        200        107   0.53500       128        21    0.19626        128        128   0.83594        1
 
   $ hg debugupgraderepo --run --optimize 're-delta-all'
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (rust !)
   
   optimisations: re-delta-all
   
   re-delta-all
      deltas within internal storage will be fully recomputed; this will likely drastically slow down execution time
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/localconfig/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   migrating 9 total revisions (3 in filelogs, 3 in manifests, 3 in changelog)
   migrating 1019 bytes in store; 882 bytes tracked data
   migrating 1 filelogs containing 3 revisions (320 bytes in store; 573 bytes tracked data)
   finished migrating 3 filelog revisions across 1 filelogs; change in size: -9 bytes
   migrating 1 manifests containing 3 revisions (333 bytes in store; 138 bytes tracked data)
   finished migrating 3 manifest revisions across 1 manifests; change in size: 0 bytes
   migrating changelog containing 3 revisions (366 bytes in store; 171 bytes tracked data)
   finished migrating 3 changelog revisions; change in size: 0 bytes
   finished migrating 9 total revisions; total change in store size: -9 bytes
   copying phaseroots
   copying requires
   data fully upgraded in a temporary repository
   marking source repository as being upgraded; clients will be unable to read from repository
   starting in-place swap of repository data
   replaced files will be backed up at $TESTTMP/localconfig/.hg/upgradebackup.* (glob)
   replacing store...
   store replacement complete; repository was inconsistent for *s (glob)
   finalizing requirements file and making repository readable again
   removing temporary repository $TESTTMP/localconfig/.hg/upgrade.* (glob)
   copy of old repository backed up at $TESTTMP/localconfig/.hg/upgradebackup.* (glob)
   the old repository will not be deleted; remove it to free up disk space once the upgraded repository is verified
   $ hg debugdeltachain file
       rev      p1      p2  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio   readsize largestblk rddensity srchunks
         0      -1      -1       1        1       -1    base         77        182         77   0.42308        77         0    0.00000         77         77   1.00000        1
         1       0      -1       1        2        0      p1         21        191         98   0.51309        98         0    0.00000         98         98   1.00000        1
         2       1      -1       1        3        1      p1         21        200        119   0.59500       119         0    0.00000        119        119   1.00000        1
   $ cd ..
 
   $ cat << EOF >> $HGRCPATH
   > [format]
   > maxchainlen = 9001
   > EOF
 
 Check upgrading a sparse-revlog repository
 ---------------------------------------
 
   $ hg init sparserevlogrepo --config format.sparse-revlog=no
   $ cd sparserevlogrepo
   $ touch foo
   $ hg add foo
   $ hg -q commit -m "foo"
   $ hg debugrequires
   dotencode
   fncache
   generaldelta
   persistent-nodemap (rust !)
   revlogv1
   share-safe
   store
 
 Check that we can add the sparse-revlog format requirement
   $ hg --config format.sparse-revlog=yes debugupgraderepo --run --quiet
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, store (rust !)
      added: sparserevlog
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   $ hg debugrequires
   dotencode
   fncache
   generaldelta
   persistent-nodemap (rust !)
   revlogv1
   share-safe
   sparserevlog
   store
 
 Check that we can remove the sparse-revlog format requirement
   $ hg --config format.sparse-revlog=no debugupgraderepo --run --quiet
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, store (rust !)
      removed: sparserevlog
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   $ hg debugrequires
   dotencode
   fncache
   generaldelta
   persistent-nodemap (rust !)
   revlogv1
   share-safe
   store
 
 #if zstd
 
 Check upgrading to a zstd revlog
 --------------------------------
 
 upgrade
 
   $ hg --config format.revlog-compression=zstd debugupgraderepo --run  --no-backup --quiet
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, store (rust !)
      added: revlog-compression-zstd, sparserevlog
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   $ hg debugformat -v
   format-variant     repo config default
   fncache:            yes    yes     yes
   dirstate-v2:         no     no      no
   tracked-hint:        no     no      no
   dotencode:          yes    yes     yes
   generaldelta:       yes    yes     yes
   share-safe:         yes    yes     yes
   sparserevlog:       yes    yes     yes
   persistent-nodemap:  no     no      no (no-rust !)
   persistent-nodemap: yes    yes      no (rust !)
   copies-sdc:          no     no      no
   revlog-v2:           no     no      no
   changelog-v2:        no     no      no
   plain-cl-delta:     yes    yes     yes
   compression:        zlib   zlib    zlib (no-zstd !)
   compression:        zstd   zlib    zstd (zstd !)
   compression-level:  default default default
   $ hg debugrequires
   dotencode
   fncache
   generaldelta
   persistent-nodemap (rust !)
   revlog-compression-zstd
   revlogv1
   share-safe
   sparserevlog
   store
 
 downgrade
 
   $ hg debugupgraderepo --run --no-backup --quiet
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (rust !)
      removed: revlog-compression-zstd
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   $ hg debugformat -v
   format-variant     repo config default
   fncache:            yes    yes     yes
   dirstate-v2:         no     no      no
   tracked-hint:        no     no      no
   dotencode:          yes    yes     yes
   generaldelta:       yes    yes     yes
   share-safe:         yes    yes     yes
   sparserevlog:       yes    yes     yes
   persistent-nodemap:  no     no      no (no-rust !)
   persistent-nodemap: yes    yes      no (rust !)
   copies-sdc:          no     no      no
   revlog-v2:           no     no      no
   changelog-v2:        no     no      no
   plain-cl-delta:     yes    yes     yes
   compression:        zlib   zlib    zlib (no-zstd !)
   compression:        zlib   zlib    zstd (zstd !)
   compression-level:  default default default
   $ hg debugrequires
   dotencode
   fncache
   generaldelta
   persistent-nodemap (rust !)
   revlogv1
   share-safe
   sparserevlog
   store
 
 upgrade from hgrc
 
   $ cat >> .hg/hgrc << EOF
   > [format]
   > revlog-compression=zstd
   > EOF
   $ hg debugupgraderepo --run --no-backup --quiet
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (rust !)
      added: revlog-compression-zstd
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   $ hg debugformat -v
   format-variant     repo config default
   fncache:            yes    yes     yes
   dirstate-v2:         no     no      no
   tracked-hint:        no     no      no
   dotencode:          yes    yes     yes
   generaldelta:       yes    yes     yes
   share-safe:         yes    yes     yes
   sparserevlog:       yes    yes     yes
   persistent-nodemap:  no     no      no (no-rust !)
   persistent-nodemap: yes    yes      no (rust !)
   copies-sdc:          no     no      no
   revlog-v2:           no     no      no
   changelog-v2:        no     no      no
   plain-cl-delta:     yes    yes     yes
   compression:        zlib   zlib    zlib (no-zstd !)
   compression:        zstd   zstd    zstd (zstd !)
   compression-level:  default default default
   $ hg debugrequires
   dotencode
   fncache
   generaldelta
   persistent-nodemap (rust !)
   revlog-compression-zstd
   revlogv1
   share-safe
   sparserevlog
   store
 
 #endif
 
 Check upgrading to a revlog format supporting sidedata
 ------------------------------------------------------
 
 upgrade
 
   $ hg debugsidedata -c 0
   $ hg --config experimental.revlogv2=enable-unstable-format-and-corrupt-my-data debugupgraderepo --run  --no-backup --config "extensions.sidedata=$TESTDIR/testlib/ext-sidedata.py" --quiet
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, share-safe, store (no-zstd !)
      preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, share-safe, sparserevlog, store (zstd no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlog-compression-zstd, share-safe, sparserevlog, store (rust !)
      removed: revlogv1
      added: exp-revlogv2.2 (zstd !)
      added: exp-revlogv2.2, sparserevlog (no-zstd !)
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   $ hg debugformat -v
   format-variant     repo config default
   fncache:            yes    yes     yes
   dirstate-v2:         no     no      no
   tracked-hint:        no     no      no
   dotencode:          yes    yes     yes
   generaldelta:       yes    yes     yes
   share-safe:         yes    yes     yes
   sparserevlog:       yes    yes     yes
   persistent-nodemap:  no     no      no (no-rust !)
   persistent-nodemap: yes    yes      no (rust !)
   copies-sdc:          no     no      no
   revlog-v2:          yes     no      no
   changelog-v2:        no     no      no
   plain-cl-delta:     yes    yes     yes
   compression:        zlib   zlib    zlib (no-zstd !)
   compression:        zstd   zstd    zstd (zstd !)
   compression-level:  default default default
   $ hg debugrequires
   dotencode
   exp-revlogv2.2
   fncache
   generaldelta
   persistent-nodemap (rust !)
   revlog-compression-zstd (zstd !)
   share-safe
   sparserevlog
   store
   $ hg debugsidedata -c 0
   2 sidedata entries
    entry-0001 size 4
    entry-0002 size 32
 
 downgrade
 
   $ hg debugupgraderepo --config experimental.revlogv2=no --run --no-backup --quiet
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, share-safe, sparserevlog, store (no-zstd !)
      preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, share-safe, sparserevlog, store (zstd no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlog-compression-zstd, share-safe, sparserevlog, store (rust !)
      removed: exp-revlogv2.2
      added: revlogv1
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   $ hg debugformat -v
   format-variant     repo config default
   fncache:            yes    yes     yes
   dirstate-v2:         no     no      no
   tracked-hint:        no     no      no
   dotencode:          yes    yes     yes
   generaldelta:       yes    yes     yes
   share-safe:         yes    yes     yes
   sparserevlog:       yes    yes     yes
   persistent-nodemap:  no     no      no (no-rust !)
   persistent-nodemap: yes    yes      no (rust !)
   copies-sdc:          no     no      no
   revlog-v2:           no     no      no
   changelog-v2:        no     no      no
   plain-cl-delta:     yes    yes     yes
   compression:        zlib   zlib    zlib (no-zstd !)
   compression:        zstd   zstd    zstd (zstd !)
   compression-level:  default default default
   $ hg debugrequires
   dotencode
   fncache
   generaldelta
   persistent-nodemap (rust !)
   revlog-compression-zstd (zstd !)
   revlogv1
   share-safe
   sparserevlog
   store
   $ hg debugsidedata -c 0
 
 upgrade from hgrc
 
   $ cat >> .hg/hgrc << EOF
   > [experimental]
   > revlogv2=enable-unstable-format-and-corrupt-my-data
   > EOF
   $ hg debugupgraderepo --run --no-backup --quiet
   upgrade will perform the following actions:
   
   requirements
      preserved: dotencode, fncache, generaldelta, share-safe, sparserevlog, store (no-zstd !)
      preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, share-safe, sparserevlog, store (zstd no-rust !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlog-compression-zstd, share-safe, sparserevlog, store (rust !)
      removed: revlogv1
      added: exp-revlogv2.2
   
   processed revlogs:
     - all-filelogs
     - changelog
     - manifest
   
   $ hg debugformat -v
   format-variant     repo config default
   fncache:            yes    yes     yes
   dirstate-v2:         no     no      no
   tracked-hint:        no     no      no
   dotencode:          yes    yes     yes
   generaldelta:       yes    yes     yes
   share-safe:         yes    yes     yes
   sparserevlog:       yes    yes     yes
   persistent-nodemap:  no     no      no (no-rust !)
   persistent-nodemap: yes    yes      no (rust !)
   copies-sdc:          no     no      no
   revlog-v2:          yes    yes      no
   changelog-v2:        no     no      no
   plain-cl-delta:     yes    yes     yes
   compression:        zlib   zlib    zlib (no-zstd !)
   compression:        zstd   zstd    zstd (zstd !)
   compression-level:  default default default
   $ hg debugrequires
   dotencode
   exp-revlogv2.2
   fncache
   generaldelta
   persistent-nodemap (rust !)
   revlog-compression-zstd (zstd !)
   share-safe
   sparserevlog
   store
   $ hg debugsidedata -c 0
 
 Demonstrate that nothing to perform upgrade will still run all the way through
 
   $ hg debugupgraderepo --run
   nothing to do
 
 #if no-rust
 
   $ cat << EOF >> $HGRCPATH
   > [storage]
   > dirstate-v2.slow-path = allow
   > EOF
 
 #endif
 
 Upgrade to dirstate-v2
 
   $ hg debugformat -v --config format.use-dirstate-v2=1 | grep dirstate-v2
   dirstate-v2:         no    yes      no
   $ hg debugupgraderepo --config format.use-dirstate-v2=1 --run
   upgrade will perform the following actions:
   
   requirements
      preserved: * (glob)
      added: dirstate-v2
   
   dirstate-v2
      "hg status" will be faster
   
   no revlogs to process
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/sparserevlogrepo/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   upgrading to dirstate-v2 from v1
   replaced files will be backed up at $TESTTMP/sparserevlogrepo/.hg/upgradebackup.* (glob)
   removing temporary repository $TESTTMP/sparserevlogrepo/.hg/upgrade.* (glob)
   $ ls .hg/upgradebackup.*/dirstate
   .hg/upgradebackup.*/dirstate (glob)
   $ hg debugformat -v | grep dirstate-v2
   dirstate-v2:        yes     no      no
   $ hg status
   $ dd bs=12 count=1 if=.hg/dirstate 2> /dev/null
   dirstate-v2
 
 Downgrade from dirstate-v2
 
   $ hg debugupgraderepo --run
   upgrade will perform the following actions:
   
   requirements
      preserved: * (glob)
      removed: dirstate-v2
   
   no revlogs to process
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/sparserevlogrepo/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   downgrading from dirstate-v2 to v1
   replaced files will be backed up at $TESTTMP/sparserevlogrepo/.hg/upgradebackup.* (glob)
   removing temporary repository $TESTTMP/sparserevlogrepo/.hg/upgrade.* (glob)
   $ hg debugformat -v | grep dirstate-v2
   dirstate-v2:         no     no      no
   $ hg status
 
   $ cd ..
 
 dirstate-v2: upgrade and downgrade from and empty repository:
 -------------------------------------------------------------
 
   $ hg init --config format.use-dirstate-v2=no dirstate-v2-empty
   $ cd dirstate-v2-empty
   $ hg debugformat | grep dirstate-v2
   dirstate-v2:         no
 
 upgrade
 
   $ hg debugupgraderepo --run --config format.use-dirstate-v2=yes
   upgrade will perform the following actions:
   
   requirements
      preserved: * (glob)
      added: dirstate-v2
   
   dirstate-v2
      "hg status" will be faster
   
   no revlogs to process
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/dirstate-v2-empty/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   upgrading to dirstate-v2 from v1
   replaced files will be backed up at $TESTTMP/dirstate-v2-empty/.hg/upgradebackup.* (glob)
   removing temporary repository $TESTTMP/dirstate-v2-empty/.hg/upgrade.* (glob)
   $ hg debugformat | grep dirstate-v2
   dirstate-v2:        yes
 
 downgrade
 
   $ hg debugupgraderepo --run --config format.use-dirstate-v2=no
   upgrade will perform the following actions:
   
   requirements
      preserved: * (glob)
      removed: dirstate-v2
   
   no revlogs to process
   
   beginning upgrade...
   repository locked and read-only
   creating temporary repository to stage upgraded data: $TESTTMP/dirstate-v2-empty/.hg/upgrade.* (glob)
   (it is safe to interrupt this process any time before data migration completes)
   downgrading from dirstate-v2 to v1
   replaced files will be backed up at $TESTTMP/dirstate-v2-empty/.hg/upgradebackup.* (glob)
   removing temporary repository $TESTTMP/dirstate-v2-empty/.hg/upgrade.* (glob)
   $ hg debugformat | grep dirstate-v2
   dirstate-v2:         no
 
   $ cd ..
 
 Test automatic upgrade/downgrade
 ================================
 
 
 For dirstate v2
 ---------------
 
 create an initial repository
 
   $ hg init auto-upgrade \
   >     --config format.use-dirstate-v2=no \
   >     --config format.use-dirstate-tracked-hint=yes \
   >     --config format.use-share-safe=no
   $ hg debugbuilddag -R auto-upgrade --new-file .+5
   $ hg -R auto-upgrade update
   6 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg debugformat -R auto-upgrade | grep dirstate-v2
   dirstate-v2:         no
 
 upgrade it to dirstate-v2 automatically
 
   $ hg status -R auto-upgrade \
   >     --config format.use-dirstate-v2.automatic-upgrade-of-mismatching-repositories=yes \
   >     --config format.use-dirstate-v2=yes
   automatically upgrading repository to the `dirstate-v2` feature
   (see `hg help config.format.use-dirstate-v2` for details)
   $ hg debugformat -R auto-upgrade | grep dirstate-v2
   dirstate-v2:        yes
 
 downgrade it from dirstate-v2 automatically
 
   $ hg status -R auto-upgrade \
   >     --config format.use-dirstate-v2.automatic-upgrade-of-mismatching-repositories=yes \
   >     --config format.use-dirstate-v2=no
   automatically downgrading repository from the `dirstate-v2` feature
   (see `hg help config.format.use-dirstate-v2` for details)
   $ hg debugformat -R auto-upgrade | grep dirstate-v2
   dirstate-v2:         no
 
 
 For multiple change at the same time
 ------------------------------------
 
   $ hg debugformat -R auto-upgrade | egrep '(dirstate-v2|tracked|share-safe)'
   dirstate-v2:         no
   tracked-hint:       yes
   share-safe:          no
 
   $ hg status -R auto-upgrade \
   >     --config format.use-dirstate-v2.automatic-upgrade-of-mismatching-repositories=yes \
   >     --config format.use-dirstate-v2=yes \
   >     --config format.use-dirstate-tracked-hint.automatic-upgrade-of-mismatching-repositories=yes \
   >     --config format.use-dirstate-tracked-hint=no\
   >     --config format.use-share-safe.automatic-upgrade-of-mismatching-repositories=yes \
   >     --config format.use-share-safe=yes
   automatically upgrading repository to the `dirstate-v2` feature
   (see `hg help config.format.use-dirstate-v2` for details)
   automatically upgrading repository to the `share-safe` feature
   (see `hg help config.format.use-share-safe` for details)
   automatically downgrading repository from the `tracked-hint` feature
   (see `hg help config.format.use-dirstate-tracked-hint` for details)
   $ hg debugformat -R auto-upgrade | egrep '(dirstate-v2|tracked|share-safe)'
   dirstate-v2:        yes
   tracked-hint:        no
   share-safe:         yes
 
 Quiet upgrade and downgrade
 ---------------------------
 
 
   $ hg debugformat -R auto-upgrade | egrep '(dirstate-v2|tracked|share-safe)'
   dirstate-v2:        yes
   tracked-hint:        no
   share-safe:         yes
   $ hg status -R auto-upgrade \
   >     --config format.use-dirstate-v2.automatic-upgrade-of-mismatching-repositories=yes \
   >     --config format.use-dirstate-v2.automatic-upgrade-of-mismatching-repositories:quiet=yes \
   >     --config format.use-dirstate-v2=no \
   >     --config format.use-dirstate-tracked-hint.automatic-upgrade-of-mismatching-repositories=yes \
   >     --config format.use-dirstate-tracked-hint.automatic-upgrade-of-mismatching-repositories:quiet=yes \
   >     --config format.use-dirstate-tracked-hint=yes \
   >     --config format.use-share-safe.automatic-upgrade-of-mismatching-repositories=yes \
   >     --config format.use-share-safe.automatic-upgrade-of-mismatching-repositories:quiet=yes \
   >     --config format.use-share-safe=no
 
   $ hg debugformat -R auto-upgrade | egrep '(dirstate-v2|tracked|share-safe)'
   dirstate-v2:         no
   tracked-hint:       yes
   share-safe:          no
 
   $ hg status -R auto-upgrade \
   >     --config format.use-dirstate-v2.automatic-upgrade-of-mismatching-repositories=yes \
   >     --config format.use-dirstate-v2.automatic-upgrade-of-mismatching-repositories:quiet=yes \
   >     --config format.use-dirstate-v2=yes \
   >     --config format.use-dirstate-tracked-hint.automatic-upgrade-of-mismatching-repositories=yes \
   >     --config format.use-dirstate-tracked-hint.automatic-upgrade-of-mismatching-repositories:quiet=yes \
   >     --config format.use-dirstate-tracked-hint=no\
   >     --config format.use-share-safe.automatic-upgrade-of-mismatching-repositories=yes \
   >     --config format.use-share-safe.automatic-upgrade-of-mismatching-repositories:quiet=yes \
   >     --config format.use-share-safe=yes
   $ hg debugformat -R auto-upgrade | egrep '(dirstate-v2|tracked|share-safe)'
   dirstate-v2:        yes
   tracked-hint:        no
   share-safe:         yes
 
 Attempting Auto-upgrade on a read-only repository
 -------------------------------------------------
 
   $ chmod -R a-w auto-upgrade
 
   $ hg status -R auto-upgrade \
   >     --config format.use-dirstate-v2.automatic-upgrade-of-mismatching-repositories=yes \
   >     --config format.use-dirstate-v2=no
   $ hg debugformat -R auto-upgrade | grep dirstate-v2
   dirstate-v2:        yes
 
   $ chmod -R u+w auto-upgrade
 
 Attempting Auto-upgrade on a locked repository
 ----------------------------------------------
 
   $ hg -R auto-upgrade debuglock --set-lock --quiet &
   $ echo $! >> $DAEMON_PIDS
   $ $RUNTESTDIR/testlib/wait-on-file 10 auto-upgrade/.hg/store/lock
   $ hg status -R auto-upgrade \
   >     --config format.use-dirstate-v2.automatic-upgrade-of-mismatching-repositories=yes \
   >     --config format.use-dirstate-v2=no
   $ hg debugformat -R auto-upgrade | grep dirstate-v2
   dirstate-v2:        yes
 
   $ killdaemons.py