Mercurial > hg
view mercurial/phases.py @ 50291:862969b6c359 stable
undo-files: cleanup legacy files when applicable
The "journal" code is much more compact in 6.4, and so is the "undo" files as a
result. However the previous version were much noisier, so let us cleanup undo
files from older version too.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Tue, 07 Mar 2023 03:42:40 +0100 |
parents | 0c70d888a484 |
children | 92f71d40fc1d |
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""" Mercurial phases support code --- Copyright 2011 Pierre-Yves David <pierre-yves.david@ens-lyon.org> Logilab SA <contact@logilab.fr> Augie Fackler <durin42@gmail.com> This software may be used and distributed according to the terms of the GNU General Public License version 2 or any later version. --- This module implements most phase logic in mercurial. Basic Concept ============= A 'changeset phase' is an indicator that tells us how a changeset is manipulated and communicated. The details of each phase is described below, here we describe the properties they have in common. Like bookmarks, phases are not stored in history and thus are not permanent and leave no audit trail. First, no changeset can be in two phases at once. Phases are ordered, so they can be considered from lowest to highest. The default, lowest phase is 'public' - this is the normal phase of existing changesets. A child changeset can not be in a lower phase than its parents. These phases share a hierarchy of traits: immutable shared public: X X draft: X secret: Local commits are draft by default. Phase Movement and Exchange =========================== Phase data is exchanged by pushkey on pull and push. Some servers have a publish option set, we call such a server a "publishing server". Pushing a draft changeset to a publishing server changes the phase to public. A small list of fact/rules define the exchange of phase: * old client never changes server states * pull never changes server states * publish and old server changesets are seen as public by client * any secret changeset seen in another repository is lowered to at least draft Here is the final table summing up the 49 possible use cases of phase exchange: server old publish non-publish N X N D P N D P old client pull N - X/X - X/D X/P - X/D X/P X - X/X - X/D X/P - X/D X/P push X X/X X/X X/P X/P X/P X/D X/D X/P new client pull N - P/X - P/D P/P - D/D P/P D - P/X - P/D P/P - D/D P/P P - P/X - P/D P/P - P/D P/P push D P/X P/X P/P P/P P/P D/D D/D P/P P P/X P/X P/P P/P P/P P/P P/P P/P Legend: A/B = final state on client / state on server * N = new/not present, * P = public, * D = draft, * X = not tracked (i.e., the old client or server has no internal way of recording the phase.) passive = only pushes A cell here can be read like this: "When a new client pushes a draft changeset (D) to a publishing server where it's not present (N), it's marked public on both sides (P/P)." Note: old client behave as a publishing server with draft only content - other people see it as public - content is pushed as draft """ import struct from .i18n import _ from .node import ( bin, hex, nullrev, short, wdirrev, ) from .pycompat import ( getattr, setattr, ) from . import ( error, pycompat, requirements, smartset, txnutil, util, ) if pycompat.TYPE_CHECKING: from typing import ( Any, Callable, Dict, Iterable, List, Optional, Set, Tuple, ) from . import ( localrepo, ui as uimod, ) Phaseroots = Dict[int, Set[bytes]] Phasedefaults = List[ Callable[[localrepo.localrepository, Phaseroots], Phaseroots] ] _fphasesentry = struct.Struct(b'>i20s') # record phase index public, draft, secret = range(3) # type: int archived = 32 # non-continuous for compatibility internal = 96 # non-continuous for compatibility allphases = (public, draft, secret, archived, internal) trackedphases = (draft, secret, archived, internal) # record phase names cmdphasenames = [b'public', b'draft', b'secret'] # known to `hg phase` command phasenames = dict(enumerate(cmdphasenames)) phasenames[archived] = b'archived' phasenames[internal] = b'internal' # map phase name to phase number phasenumber = {name: phase for phase, name in phasenames.items()} # like phasenumber, but also include maps for the numeric and binary # phase number to the phase number phasenumber2 = phasenumber.copy() phasenumber2.update({phase: phase for phase in phasenames}) phasenumber2.update({b'%i' % phase: phase for phase in phasenames}) # record phase property mutablephases = (draft, secret, archived, internal) remotehiddenphases = (secret, archived, internal) localhiddenphases = (internal, archived) def supportinternal(repo): # type: (localrepo.localrepository) -> bool """True if the internal phase can be used on a repository""" return requirements.INTERNAL_PHASE_REQUIREMENT in repo.requirements def supportarchived(repo): # type: (localrepo.localrepository) -> bool """True if the archived phase can be used on a repository""" return requirements.ARCHIVED_PHASE_REQUIREMENT in repo.requirements def _readroots(repo, phasedefaults=None): # type: (localrepo.localrepository, Optional[Phasedefaults]) -> Tuple[Phaseroots, bool] """Read phase roots from disk phasedefaults is a list of fn(repo, roots) callable, which are executed if the phase roots file does not exist. When phases are being initialized on an existing repository, this could be used to set selected changesets phase to something else than public. Return (roots, dirty) where dirty is true if roots differ from what is being stored. """ repo = repo.unfiltered() dirty = False roots = {i: set() for i in allphases} try: f, pending = txnutil.trypending(repo.root, repo.svfs, b'phaseroots') try: for line in f: phase, nh = line.split() roots[int(phase)].add(bin(nh)) finally: f.close() except FileNotFoundError: if phasedefaults: for f in phasedefaults: roots = f(repo, roots) dirty = True return roots, dirty def binaryencode(phasemapping): # type: (Dict[int, List[bytes]]) -> bytes """encode a 'phase -> nodes' mapping into a binary stream The revision lists are encoded as (phase, root) pairs. """ binarydata = [] for phase, nodes in phasemapping.items(): for head in nodes: binarydata.append(_fphasesentry.pack(phase, head)) return b''.join(binarydata) def binarydecode(stream): # type: (...) -> Dict[int, List[bytes]] """decode a binary stream into a 'phase -> nodes' mapping The (phase, root) pairs are turned back into a dictionary with the phase as index and the aggregated roots of that phase as value.""" headsbyphase = {i: [] for i in allphases} entrysize = _fphasesentry.size while True: entry = stream.read(entrysize) if len(entry) < entrysize: if entry: raise error.Abort(_(b'bad phase-heads stream')) break phase, node = _fphasesentry.unpack(entry) headsbyphase[phase].append(node) return headsbyphase def _sortedrange_insert(data, idx, rev, t): merge_before = False if idx: r1, t1 = data[idx - 1] merge_before = r1[-1] + 1 == rev and t1 == t merge_after = False if idx < len(data): r2, t2 = data[idx] merge_after = r2[0] == rev + 1 and t2 == t if merge_before and merge_after: data[idx - 1] = (range(r1[0], r2[-1] + 1), t) data.pop(idx) elif merge_before: data[idx - 1] = (range(r1[0], rev + 1), t) elif merge_after: data[idx] = (range(rev, r2[-1] + 1), t) else: data.insert(idx, (range(rev, rev + 1), t)) def _sortedrange_split(data, idx, rev, t): r1, t1 = data[idx] if t == t1: return t = (t1[0], t[1]) if len(r1) == 1: data.pop(idx) _sortedrange_insert(data, idx, rev, t) elif r1[0] == rev: data[idx] = (range(rev + 1, r1[-1] + 1), t1) _sortedrange_insert(data, idx, rev, t) elif r1[-1] == rev: data[idx] = (range(r1[0], rev), t1) _sortedrange_insert(data, idx + 1, rev, t) else: data[idx : idx + 1] = [ (range(r1[0], rev), t1), (range(rev, rev + 1), t), (range(rev + 1, r1[-1] + 1), t1), ] def _trackphasechange(data, rev, old, new): """add a phase move to the <data> list of ranges If data is None, nothing happens. """ if data is None: return # If data is empty, create a one-revision range and done if not data: data.insert(0, (range(rev, rev + 1), (old, new))) return low = 0 high = len(data) t = (old, new) while low < high: mid = (low + high) // 2 revs = data[mid][0] revs_low = revs[0] revs_high = revs[-1] if rev >= revs_low and rev <= revs_high: _sortedrange_split(data, mid, rev, t) return if revs_low == rev + 1: if mid and data[mid - 1][0][-1] == rev: _sortedrange_split(data, mid - 1, rev, t) else: _sortedrange_insert(data, mid, rev, t) return if revs_high == rev - 1: if mid + 1 < len(data) and data[mid + 1][0][0] == rev: _sortedrange_split(data, mid + 1, rev, t) else: _sortedrange_insert(data, mid + 1, rev, t) return if revs_low > rev: high = mid else: low = mid + 1 if low == len(data): data.append((range(rev, rev + 1), t)) return r1, t1 = data[low] if r1[0] > rev: data.insert(low, (range(rev, rev + 1), t)) else: data.insert(low + 1, (range(rev, rev + 1), t)) class phasecache: def __init__(self, repo, phasedefaults, _load=True): # type: (localrepo.localrepository, Optional[Phasedefaults], bool) -> None if _load: # Cheap trick to allow shallow-copy without copy module self.phaseroots, self.dirty = _readroots(repo, phasedefaults) self._loadedrevslen = 0 self._phasesets = None self.filterunknown(repo) self.opener = repo.svfs def hasnonpublicphases(self, repo): # type: (localrepo.localrepository) -> bool """detect if there are revisions with non-public phase""" repo = repo.unfiltered() cl = repo.changelog if len(cl) >= self._loadedrevslen: self.invalidate() self.loadphaserevs(repo) return any( revs for phase, revs in self.phaseroots.items() if phase != public ) def nonpublicphaseroots(self, repo): # type: (localrepo.localrepository) -> Set[bytes] """returns the roots of all non-public phases The roots are not minimized, so if the secret revisions are descendants of draft revisions, their roots will still be present. """ repo = repo.unfiltered() cl = repo.changelog if len(cl) >= self._loadedrevslen: self.invalidate() self.loadphaserevs(repo) return set().union( *[ revs for phase, revs in self.phaseroots.items() if phase != public ] ) def getrevset(self, repo, phases, subset=None): # type: (localrepo.localrepository, Iterable[int], Optional[Any]) -> Any # TODO: finish typing this """return a smartset for the given phases""" self.loadphaserevs(repo) # ensure phase's sets are loaded phases = set(phases) publicphase = public in phases if publicphase: # In this case, phases keeps all the *other* phases. phases = set(allphases).difference(phases) if not phases: return smartset.fullreposet(repo) # fast path: _phasesets contains the interesting sets, # might only need a union and post-filtering. revsneedscopy = False if len(phases) == 1: [p] = phases revs = self._phasesets[p] revsneedscopy = True # Don't modify _phasesets else: # revs has the revisions in all *other* phases. revs = set.union(*[self._phasesets[p] for p in phases]) def _addwdir(wdirsubset, wdirrevs): if wdirrev in wdirsubset and repo[None].phase() in phases: if revsneedscopy: wdirrevs = wdirrevs.copy() # The working dir would never be in the # cache, but it was in # the subset being filtered for its phase (or filtered out, # depending on publicphase), so add it to the output to be # included (or filtered out). wdirrevs.add(wdirrev) return wdirrevs if not publicphase: if repo.changelog.filteredrevs: revs = revs - repo.changelog.filteredrevs if subset is None: return smartset.baseset(revs) else: revs = _addwdir(subset, revs) return subset & smartset.baseset(revs) else: if subset is None: subset = smartset.fullreposet(repo) revs = _addwdir(subset, revs) if not revs: return subset return subset.filter(lambda r: r not in revs) def copy(self): # Shallow copy meant to ensure isolation in # advance/retractboundary(), nothing more. ph = self.__class__(None, None, _load=False) ph.phaseroots = self.phaseroots.copy() ph.dirty = self.dirty ph.opener = self.opener ph._loadedrevslen = self._loadedrevslen ph._phasesets = self._phasesets return ph def replace(self, phcache): """replace all values in 'self' with content of phcache""" for a in ( b'phaseroots', b'dirty', b'opener', b'_loadedrevslen', b'_phasesets', ): setattr(self, a, getattr(phcache, a)) def _getphaserevsnative(self, repo): repo = repo.unfiltered() return repo.changelog.computephases(self.phaseroots) def _computephaserevspure(self, repo): repo = repo.unfiltered() cl = repo.changelog self._phasesets = {phase: set() for phase in allphases} lowerroots = set() for phase in reversed(trackedphases): roots = pycompat.maplist(cl.rev, self.phaseroots[phase]) if roots: ps = set(cl.descendants(roots)) for root in roots: ps.add(root) ps.difference_update(lowerroots) lowerroots.update(ps) self._phasesets[phase] = ps self._loadedrevslen = len(cl) def loadphaserevs(self, repo): # type: (localrepo.localrepository) -> None """ensure phase information is loaded in the object""" if self._phasesets is None: try: res = self._getphaserevsnative(repo) self._loadedrevslen, self._phasesets = res except AttributeError: self._computephaserevspure(repo) def invalidate(self): self._loadedrevslen = 0 self._phasesets = None def phase(self, repo, rev): # type: (localrepo.localrepository, int) -> int # We need a repo argument here to be able to build _phasesets # if necessary. The repository instance is not stored in # phasecache to avoid reference cycles. The changelog instance # is not stored because it is a filecache() property and can # be replaced without us being notified. if rev == nullrev: return public if rev < nullrev: raise ValueError(_(b'cannot lookup negative revision')) if rev >= self._loadedrevslen: self.invalidate() self.loadphaserevs(repo) for phase in trackedphases: if rev in self._phasesets[phase]: return phase return public def write(self): if not self.dirty: return f = self.opener(b'phaseroots', b'w', atomictemp=True, checkambig=True) try: self._write(f) finally: f.close() def _write(self, fp): for phase, roots in self.phaseroots.items(): for h in sorted(roots): fp.write(b'%i %s\n' % (phase, hex(h))) self.dirty = False def _updateroots(self, phase, newroots, tr): self.phaseroots[phase] = newroots self.invalidate() self.dirty = True tr.addfilegenerator(b'phase', (b'phaseroots',), self._write) tr.hookargs[b'phases_moved'] = b'1' def registernew(self, repo, tr, targetphase, revs): repo = repo.unfiltered() self._retractboundary(repo, tr, targetphase, [], revs=revs) if tr is not None and b'phases' in tr.changes: phasetracking = tr.changes[b'phases'] phase = self.phase for rev in sorted(revs): revphase = phase(repo, rev) _trackphasechange(phasetracking, rev, None, revphase) repo.invalidatevolatilesets() def advanceboundary( self, repo, tr, targetphase, nodes, revs=None, dryrun=None ): """Set all 'nodes' to phase 'targetphase' Nodes with a phase lower than 'targetphase' are not affected. If dryrun is True, no actions will be performed Returns a set of revs whose phase is changed or should be changed """ # Be careful to preserve shallow-copied values: do not update # phaseroots values, replace them. if revs is None: revs = [] if tr is None: phasetracking = None else: phasetracking = tr.changes.get(b'phases') repo = repo.unfiltered() revs = [repo[n].rev() for n in nodes] + [r for r in revs] changes = set() # set of revisions to be changed delroots = [] # set of root deleted by this path for phase in (phase for phase in allphases if phase > targetphase): # filter nodes that are not in a compatible phase already revs = [rev for rev in revs if self.phase(repo, rev) >= phase] if not revs: break # no roots to move anymore olds = self.phaseroots[phase] affected = repo.revs(b'%ln::%ld', olds, revs) changes.update(affected) if dryrun: continue for r in affected: _trackphasechange( phasetracking, r, self.phase(repo, r), targetphase ) roots = { ctx.node() for ctx in repo.set(b'roots((%ln::) - %ld)', olds, affected) } if olds != roots: self._updateroots(phase, roots, tr) # some roots may need to be declared for lower phases delroots.extend(olds - roots) if not dryrun: # declare deleted root in the target phase if targetphase != 0: self._retractboundary(repo, tr, targetphase, delroots) repo.invalidatevolatilesets() return changes def retractboundary(self, repo, tr, targetphase, nodes): oldroots = { phase: revs for phase, revs in self.phaseroots.items() if phase <= targetphase } if tr is None: phasetracking = None else: phasetracking = tr.changes.get(b'phases') repo = repo.unfiltered() if ( self._retractboundary(repo, tr, targetphase, nodes) and phasetracking is not None ): # find the affected revisions new = self.phaseroots[targetphase] old = oldroots[targetphase] affected = set(repo.revs(b'(%ln::) - (%ln::)', new, old)) # find the phase of the affected revision for phase in range(targetphase, -1, -1): if phase: roots = oldroots.get(phase, []) revs = set(repo.revs(b'%ln::%ld', roots, affected)) affected -= revs else: # public phase revs = affected for r in sorted(revs): _trackphasechange(phasetracking, r, phase, targetphase) repo.invalidatevolatilesets() def _retractboundary(self, repo, tr, targetphase, nodes, revs=None): # Be careful to preserve shallow-copied values: do not update # phaseroots values, replace them. if revs is None: revs = [] if ( targetphase == internal and not supportinternal(repo) or targetphase == archived and not supportarchived(repo) ): name = phasenames[targetphase] msg = b'this repository does not support the %s phase' % name raise error.ProgrammingError(msg) repo = repo.unfiltered() torev = repo.changelog.rev tonode = repo.changelog.node currentroots = {torev(node) for node in self.phaseroots[targetphase]} finalroots = oldroots = set(currentroots) newroots = [torev(node) for node in nodes] + [r for r in revs] newroots = [ rev for rev in newroots if self.phase(repo, rev) < targetphase ] if newroots: if nullrev in newroots: raise error.Abort(_(b'cannot change null revision phase')) currentroots.update(newroots) # Only compute new roots for revs above the roots that are being # retracted. minnewroot = min(newroots) aboveroots = [rev for rev in currentroots if rev >= minnewroot] updatedroots = repo.revs(b'roots(%ld::)', aboveroots) finalroots = {rev for rev in currentroots if rev < minnewroot} finalroots.update(updatedroots) if finalroots != oldroots: self._updateroots( targetphase, {tonode(rev) for rev in finalroots}, tr ) return True return False def filterunknown(self, repo): # type: (localrepo.localrepository) -> None """remove unknown nodes from the phase boundary Nothing is lost as unknown nodes only hold data for their descendants. """ filtered = False has_node = repo.changelog.index.has_node # to filter unknown nodes for phase, nodes in self.phaseroots.items(): missing = sorted(node for node in nodes if not has_node(node)) if missing: for mnode in missing: repo.ui.debug( b'removing unknown node %s from %i-phase boundary\n' % (short(mnode), phase) ) nodes.symmetric_difference_update(missing) filtered = True if filtered: self.dirty = True # filterunknown is called by repo.destroyed, we may have no changes in # root but _phasesets contents is certainly invalid (or at least we # have not proper way to check that). related to issue 3858. # # The other caller is __init__ that have no _phasesets initialized # anyway. If this change we should consider adding a dedicated # "destroyed" function to phasecache or a proper cache key mechanism # (see branchmap one) self.invalidate() def advanceboundary(repo, tr, targetphase, nodes, revs=None, dryrun=None): """Add nodes to a phase changing other nodes phases if necessary. This function move boundary *forward* this means that all nodes are set in the target phase or kept in a *lower* phase. Simplify boundary to contains phase roots only. If dryrun is True, no actions will be performed Returns a set of revs whose phase is changed or should be changed """ if revs is None: revs = [] phcache = repo._phasecache.copy() changes = phcache.advanceboundary( repo, tr, targetphase, nodes, revs=revs, dryrun=dryrun ) if not dryrun: repo._phasecache.replace(phcache) return changes def retractboundary(repo, tr, targetphase, nodes): """Set nodes back to a phase changing other nodes phases if necessary. This function move boundary *backward* this means that all nodes are set in the target phase or kept in a *higher* phase. Simplify boundary to contains phase roots only.""" phcache = repo._phasecache.copy() phcache.retractboundary(repo, tr, targetphase, nodes) repo._phasecache.replace(phcache) def registernew(repo, tr, targetphase, revs): """register a new revision and its phase Code adding revisions to the repository should use this function to set new changeset in their target phase (or higher). """ phcache = repo._phasecache.copy() phcache.registernew(repo, tr, targetphase, revs) repo._phasecache.replace(phcache) def listphases(repo): # type: (localrepo.localrepository) -> Dict[bytes, bytes] """List phases root for serialization over pushkey""" # Use ordered dictionary so behavior is deterministic. keys = util.sortdict() value = b'%i' % draft cl = repo.unfiltered().changelog for root in repo._phasecache.phaseroots[draft]: if repo._phasecache.phase(repo, cl.rev(root)) <= draft: keys[hex(root)] = value if repo.publishing(): # Add an extra data to let remote know we are a publishing # repo. Publishing repo can't just pretend they are old repo. # When pushing to a publishing repo, the client still need to # push phase boundary # # Push do not only push changeset. It also push phase data. # New phase data may apply to common changeset which won't be # push (as they are common). Here is a very simple example: # # 1) repo A push changeset X as draft to repo B # 2) repo B make changeset X public # 3) repo B push to repo A. X is not pushed but the data that # X as now public should # # The server can't handle it on it's own as it has no idea of # client phase data. keys[b'publishing'] = b'True' return keys def pushphase(repo, nhex, oldphasestr, newphasestr): # type: (localrepo.localrepository, bytes, bytes, bytes) -> bool """List phases root for serialization over pushkey""" repo = repo.unfiltered() with repo.lock(): currentphase = repo[nhex].phase() newphase = abs(int(newphasestr)) # let's avoid negative index surprise oldphase = abs(int(oldphasestr)) # let's avoid negative index surprise if currentphase == oldphase and newphase < oldphase: with repo.transaction(b'pushkey-phase') as tr: advanceboundary(repo, tr, newphase, [bin(nhex)]) return True elif currentphase == newphase: # raced, but got correct result return True else: return False def subsetphaseheads(repo, subset): """Finds the phase heads for a subset of a history Returns a list indexed by phase number where each item is a list of phase head nodes. """ cl = repo.changelog headsbyphase = {i: [] for i in allphases} # No need to keep track of secret phase; any heads in the subset that # are not mentioned are implicitly secret. for phase in allphases[:secret]: revset = b"heads(%%ln & %s())" % phasenames[phase] headsbyphase[phase] = [cl.node(r) for r in repo.revs(revset, subset)] return headsbyphase def updatephases(repo, trgetter, headsbyphase): """Updates the repo with the given phase heads""" # Now advance phase boundaries of all phases # # run the update (and fetch transaction) only if there are actually things # to update. This avoid creating empty transaction during no-op operation. for phase in allphases: revset = b'%ln - _phase(%s)' heads = [c.node() for c in repo.set(revset, headsbyphase[phase], phase)] if heads: advanceboundary(repo, trgetter(), phase, heads) def analyzeremotephases(repo, subset, roots): """Compute phases heads and root in a subset of node from root dict * subset is heads of the subset * roots is {<nodeid> => phase} mapping. key and value are string. Accept unknown element input """ repo = repo.unfiltered() # build list from dictionary draftroots = [] has_node = repo.changelog.index.has_node # to filter unknown nodes for nhex, phase in roots.items(): if nhex == b'publishing': # ignore data related to publish option continue node = bin(nhex) phase = int(phase) if phase == public: if node != repo.nullid: repo.ui.warn( _( b'ignoring inconsistent public root' b' from remote: %s\n' ) % nhex ) elif phase == draft: if has_node(node): draftroots.append(node) else: repo.ui.warn( _(b'ignoring unexpected root from remote: %i %s\n') % (phase, nhex) ) # compute heads publicheads = newheads(repo, subset, draftroots) return publicheads, draftroots class remotephasessummary: """summarize phase information on the remote side :publishing: True is the remote is publishing :publicheads: list of remote public phase heads (nodes) :draftheads: list of remote draft phase heads (nodes) :draftroots: list of remote draft phase root (nodes) """ def __init__(self, repo, remotesubset, remoteroots): unfi = repo.unfiltered() self._allremoteroots = remoteroots self.publishing = remoteroots.get(b'publishing', False) ana = analyzeremotephases(repo, remotesubset, remoteroots) self.publicheads, self.draftroots = ana # Get the list of all "heads" revs draft on remote dheads = unfi.set(b'heads(%ln::%ln)', self.draftroots, remotesubset) self.draftheads = [c.node() for c in dheads] def newheads(repo, heads, roots): """compute new head of a subset minus another * `heads`: define the first subset * `roots`: define the second we subtract from the first""" # prevent an import cycle # phases > dagop > patch > copies > scmutil > obsolete > obsutil > phases from . import dagop repo = repo.unfiltered() cl = repo.changelog rev = cl.index.get_rev if not roots: return heads if not heads or heads == [repo.nullid]: return [] # The logic operated on revisions, convert arguments early for convenience new_heads = {rev(n) for n in heads if n != repo.nullid} roots = [rev(n) for n in roots] # compute the area we need to remove affected_zone = repo.revs(b"(%ld::%ld)", roots, new_heads) # heads in the area are no longer heads new_heads.difference_update(affected_zone) # revisions in the area have children outside of it, # They might be new heads candidates = repo.revs( b"parents(%ld + (%ld and merge())) and not null", roots, affected_zone ) candidates -= affected_zone if new_heads or candidates: # remove candidate that are ancestors of other heads new_heads.update(candidates) prunestart = repo.revs(b"parents(%ld) and not null", new_heads) pruned = dagop.reachableroots(repo, candidates, prunestart) new_heads.difference_update(pruned) return pycompat.maplist(cl.node, sorted(new_heads)) def newcommitphase(ui): # type: (uimod.ui) -> int """helper to get the target phase of new commit Handle all possible values for the phases.new-commit options. """ v = ui.config(b'phases', b'new-commit') try: return phasenumber2[v] except KeyError: raise error.ConfigError( _(b"phases.new-commit: not a valid phase name ('%s')") % v ) def hassecret(repo): # type: (localrepo.localrepository) -> bool """utility function that check if a repo have any secret changeset.""" return bool(repo._phasecache.phaseroots[secret]) def preparehookargs(node, old, new): # type: (bytes, Optional[int], Optional[int]) -> Dict[bytes, bytes] if old is None: old = b'' else: old = phasenames[old] return {b'node': node, b'oldphase': old, b'phase': phasenames[new]}