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""" Mercurial phases support code
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---
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Copyright 2011 Pierre-Yves David <pierre-yves.david@ens-lyon.org>
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Logilab SA <contact@logilab.fr>
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Augie Fackler <durin42@gmail.com>
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This software may be used and distributed according to the terms
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of the GNU General Public License version 2 or any later version.
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---
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This module implements most phase logic in mercurial.
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Basic Concept
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=============
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A 'changeset phase' is an indicator that tells us how a changeset is
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manipulated and communicated. The details of each phase is described
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below, here we describe the properties they have in common.
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Like bookmarks, phases are not stored in history and thus are not
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permanent and leave no audit trail.
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First, no changeset can be in two phases at once. Phases are ordered,
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so they can be considered from lowest to highest. The default, lowest
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phase is 'public' - this is the normal phase of existing changesets. A
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child changeset can not be in a lower phase than its parents.
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These phases share a hierarchy of traits:
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immutable shared
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public: X X
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draft: X
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secret:
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Local commits are draft by default.
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Phase Movement and Exchange
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===========================
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Phase data is exchanged by pushkey on pull and push. Some servers have
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a publish option set, we call such a server a "publishing server".
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Pushing a draft changeset to a publishing server changes the phase to
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public.
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A small list of fact/rules define the exchange of phase:
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* old client never changes server states
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* pull never changes server states
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* publish and old server changesets are seen as public by client
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* any secret changeset seen in another repository is lowered to at
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least draft
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Here is the final table summing up the 49 possible use cases of phase
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exchange:
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server
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old publish non-publish
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N X N D P N D P
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old client
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pull
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N - X/X - X/D X/P - X/D X/P
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X - X/X - X/D X/P - X/D X/P
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push
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X X/X X/X X/P X/P X/P X/D X/D X/P
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new client
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pull
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N - P/X - P/D P/P - D/D P/P
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D - P/X - P/D P/P - D/D P/P
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P - P/X - P/D P/P - P/D P/P
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push
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D P/X P/X P/P P/P P/P D/D D/D P/P
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P P/X P/X P/P P/P P/P P/P P/P P/P
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Legend:
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A/B = final state on client / state on server
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* N = new/not present,
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* P = public,
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* D = draft,
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* X = not tracked (i.e., the old client or server has no internal
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way of recording the phase.)
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passive = only pushes
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A cell here can be read like this:
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"When a new client pushes a draft changeset (D) to a publishing
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server where it's not present (N), it's marked public on both
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sides (P/P)."
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Note: old client behave as a publishing server with draft only content
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- other people see it as public
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- content is pushed as draft
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"""
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import heapq
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import struct
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import typing
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import weakref
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from typing import (
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Any,
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Callable,
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Collection,
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Dict,
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Iterable,
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List,
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Optional,
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Set,
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Tuple,
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)
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from .i18n import _
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from .node import (
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bin,
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hex,
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nullrev,
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short,
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wdirrev,
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)
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from . import (
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error,
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requirements,
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smartset,
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txnutil,
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util,
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)
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Phaseroots = Dict[int, Set[int]]
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PhaseSets = Dict[int, Set[int]]
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if typing.TYPE_CHECKING:
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from . import (
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localrepo,
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ui as uimod,
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)
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# keeps pyflakes happy
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assert [uimod]
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Phasedefaults = List[
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Callable[[localrepo.localrepository, Phaseroots], Phaseroots]
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]
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_fphasesentry = struct.Struct(b'>i20s')
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# record phase index
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public: int = 0
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draft: int = 1
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secret: int = 2
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archived = 32 # non-continuous for compatibility
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internal = 96 # non-continuous for compatibility
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allphases = (public, draft, secret, archived, internal)
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trackedphases = (draft, secret, archived, internal)
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not_public_phases = trackedphases
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# record phase names
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cmdphasenames = [b'public', b'draft', b'secret'] # known to `hg phase` command
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phasenames = dict(enumerate(cmdphasenames))
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phasenames[archived] = b'archived'
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phasenames[internal] = b'internal'
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# map phase name to phase number
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phasenumber = {name: phase for phase, name in phasenames.items()}
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# like phasenumber, but also include maps for the numeric and binary
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# phase number to the phase number
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phasenumber2 = phasenumber.copy()
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phasenumber2.update({phase: phase for phase in phasenames})
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phasenumber2.update({b'%i' % phase: phase for phase in phasenames})
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# record phase property
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mutablephases = (draft, secret, archived, internal)
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relevant_mutable_phases = (draft, secret) # could be obsolete or unstable
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remotehiddenphases = (secret, archived, internal)
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localhiddenphases = (internal, archived)
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all_internal_phases = tuple(p for p in allphases if p & internal)
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# We do not want any internal content to exit the repository, ever.
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no_bundle_phases = all_internal_phases
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def supportinternal(repo: "localrepo.localrepository") -> bool:
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"""True if the internal phase can be used on a repository"""
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return requirements.INTERNAL_PHASE_REQUIREMENT in repo.requirements
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def supportarchived(repo: "localrepo.localrepository") -> bool:
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"""True if the archived phase can be used on a repository"""
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return requirements.ARCHIVED_PHASE_REQUIREMENT in repo.requirements
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def _readroots(
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repo: "localrepo.localrepository",
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phasedefaults: Optional["Phasedefaults"] = None,
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) -> Tuple[Phaseroots, bool]:
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"""Read phase roots from disk
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phasedefaults is a list of fn(repo, roots) callable, which are
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executed if the phase roots file does not exist. When phases are
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being initialized on an existing repository, this could be used to
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set selected changesets phase to something else than public.
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Return (roots, dirty) where dirty is true if roots differ from
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what is being stored.
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"""
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repo = repo.unfiltered()
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dirty = False
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roots = {i: set() for i in allphases}
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to_rev = repo.changelog.index.get_rev
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unknown_msg = b'removing unknown node %s from %i-phase boundary\n'
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try:
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f, pending = txnutil.trypending(repo.root, repo.svfs, b'phaseroots')
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try:
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for line in f:
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str_phase, hex_node = line.split()
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phase = int(str_phase)
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node = bin(hex_node)
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rev = to_rev(node)
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if rev is None:
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repo.ui.debug(unknown_msg % (short(hex_node), phase))
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dirty = True
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else:
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roots[phase].add(rev)
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finally:
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f.close()
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except FileNotFoundError:
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if phasedefaults:
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for f in phasedefaults:
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roots = f(repo, roots)
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dirty = True
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return roots, dirty
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def binaryencode(phasemapping: Dict[int, List[bytes]]) -> bytes:
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"""encode a 'phase -> nodes' mapping into a binary stream
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The revision lists are encoded as (phase, root) pairs.
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"""
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binarydata = []
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for phase, nodes in phasemapping.items():
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for head in nodes:
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binarydata.append(_fphasesentry.pack(phase, head))
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return b''.join(binarydata)
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def binarydecode(stream) -> Dict[int, List[bytes]]:
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"""decode a binary stream into a 'phase -> nodes' mapping
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The (phase, root) pairs are turned back into a dictionary with
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the phase as index and the aggregated roots of that phase as value."""
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headsbyphase = {i: [] for i in allphases}
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entrysize = _fphasesentry.size
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while True:
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entry = stream.read(entrysize)
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if len(entry) < entrysize:
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if entry:
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raise error.Abort(_(b'bad phase-heads stream'))
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break
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phase, node = _fphasesentry.unpack(entry)
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headsbyphase[phase].append(node)
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return headsbyphase
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def _sortedrange_insert(data, idx, rev, t):
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merge_before = False
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if idx:
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r1, t1 = data[idx - 1]
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merge_before = r1[-1] + 1 == rev and t1 == t
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merge_after = False
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if idx < len(data):
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r2, t2 = data[idx]
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merge_after = r2[0] == rev + 1 and t2 == t
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if merge_before and merge_after:
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data[idx - 1] = (range(r1[0], r2[-1] + 1), t)
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data.pop(idx)
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elif merge_before:
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data[idx - 1] = (range(r1[0], rev + 1), t)
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elif merge_after:
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data[idx] = (range(rev, r2[-1] + 1), t)
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else:
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data.insert(idx, (range(rev, rev + 1), t))
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def _sortedrange_split(data, idx, rev, t):
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r1, t1 = data[idx]
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if t == t1:
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return
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t = (t1[0], t[1])
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if len(r1) == 1:
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data.pop(idx)
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_sortedrange_insert(data, idx, rev, t)
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elif r1[0] == rev:
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data[idx] = (range(rev + 1, r1[-1] + 1), t1)
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_sortedrange_insert(data, idx, rev, t)
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elif r1[-1] == rev:
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data[idx] = (range(r1[0], rev), t1)
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_sortedrange_insert(data, idx + 1, rev, t)
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else:
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data[idx : idx + 1] = [
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(range(r1[0], rev), t1),
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(range(rev, rev + 1), t),
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(range(rev + 1, r1[-1] + 1), t1),
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]
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def _trackphasechange(data, rev, old, new):
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"""add a phase move to the <data> list of ranges
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If data is None, nothing happens.
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"""
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if data is None:
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return
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# If data is empty, create a one-revision range and done
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if not data:
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data.insert(0, (range(rev, rev + 1), (old, new)))
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return
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low = 0
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high = len(data)
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t = (old, new)
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while low < high:
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mid = (low + high) // 2
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revs = data[mid][0]
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revs_low = revs[0]
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revs_high = revs[-1]
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if rev >= revs_low and rev <= revs_high:
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_sortedrange_split(data, mid, rev, t)
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return
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if revs_low == rev + 1:
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if mid and data[mid - 1][0][-1] == rev:
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_sortedrange_split(data, mid - 1, rev, t)
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else:
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_sortedrange_insert(data, mid, rev, t)
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return
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if revs_high == rev - 1:
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if mid + 1 < len(data) and data[mid + 1][0][0] == rev:
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_sortedrange_split(data, mid + 1, rev, t)
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else:
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_sortedrange_insert(data, mid + 1, rev, t)
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return
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if revs_low > rev:
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high = mid
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else:
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low = mid + 1
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if low == len(data):
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data.append((range(rev, rev + 1), t))
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return
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r1, t1 = data[low]
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if r1[0] > rev:
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data.insert(low, (range(rev, rev + 1), t))
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else:
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data.insert(low + 1, (range(rev, rev + 1), t))
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# consider incrementaly updating the phase set the update set is not bigger
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# than this size
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#
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# Be warned, this number is picked arbitrarily, without any benchmark. It
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# should blindly pickup "small update"
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INCREMENTAL_PHASE_SETS_UPDATE_MAX_UPDATE = 100
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class phasecache:
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def __init__(
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self,
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repo: "localrepo.localrepository",
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phasedefaults: Optional["Phasedefaults"],
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_load: bool = True,
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):
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if _load:
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# Cheap trick to allow shallow-copy without copy module
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loaded = _readroots(repo, phasedefaults)
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self._phaseroots: Phaseroots = loaded[0]
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self.dirty: bool = loaded[1]
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self._loadedrevslen = 0
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self._phasesets: PhaseSets = None
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def hasnonpublicphases(self, repo: "localrepo.localrepository") -> bool:
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"""detect if there are revisions with non-public phase"""
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# XXX deprecate the unused repo argument
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return any(
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revs for phase, revs in self._phaseroots.items() if phase != public
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)
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def nonpublicphaseroots(
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self, repo: "localrepo.localrepository"
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) -> Set[int]:
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"""returns the roots of all non-public phases
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The roots are not minimized, so if the secret revisions are
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descendants of draft revisions, their roots will still be present.
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"""
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repo = repo.unfiltered()
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self._ensure_phase_sets(repo)
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return set().union(
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*[
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revs
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for phase, revs in self._phaseroots.items()
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if phase != public
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]
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)
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def get_raw_set(
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self,
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repo: "localrepo.localrepository",
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phase: int,
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) -> Set[int]:
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"""return the set of revision in that phase
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The returned set is not filtered and might contains revision filtered
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for the passed repoview.
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The returned set might be the internal one and MUST NOT be mutated to
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avoid side effect.
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"""
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if phase == public:
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raise error.ProgrammingError("cannot get_set for public phase")
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self._ensure_phase_sets(repo.unfiltered())
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revs = self._phasesets.get(phase)
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if revs is None:
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return set()
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return revs
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def getrevset(
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self,
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repo: "localrepo.localrepository",
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phases: Iterable[int],
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subset: Optional[Any] = None,
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) -> Any:
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# TODO: finish typing this
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"""return a smartset for the given phases"""
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self._ensure_phase_sets(repo.unfiltered())
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phases = set(phases)
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publicphase = public in phases
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if publicphase:
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# In this case, phases keeps all the *other* phases.
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phases = set(allphases).difference(phases)
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if not phases:
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|
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._loadedrevslen = self._loadedrevslen
|
|
|
if self._phasesets is None:
|
|
|
ph._phasesets = None
|
|
|
else:
|
|
|
ph._phasesets = self._phasesets.copy()
|
|
|
return ph
|
|
|
|
|
|
def replace(self, phcache):
|
|
|
"""replace all values in 'self' with content of phcache"""
|
|
|
for a in (
|
|
|
'_phaseroots',
|
|
|
'dirty',
|
|
|
'_loadedrevslen',
|
|
|
'_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 = 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 _ensure_phase_sets(self, repo: "localrepo.localrepository") -> None:
|
|
|
"""ensure phase information is loaded in the object"""
|
|
|
assert repo.filtername is None
|
|
|
update = -1
|
|
|
cl = repo.changelog
|
|
|
cl_size = len(cl)
|
|
|
if self._phasesets is None:
|
|
|
update = 0
|
|
|
else:
|
|
|
if cl_size > self._loadedrevslen:
|
|
|
# check if an incremental update is worth it.
|
|
|
# note we need a tradeoff here because the whole logic is not
|
|
|
# stored and implemented in native code nd datastructure.
|
|
|
# Otherwise the incremental update woul always be a win.
|
|
|
missing = cl_size - self._loadedrevslen
|
|
|
if missing <= INCREMENTAL_PHASE_SETS_UPDATE_MAX_UPDATE:
|
|
|
update = self._loadedrevslen
|
|
|
else:
|
|
|
update = 0
|
|
|
|
|
|
if update == 0:
|
|
|
try:
|
|
|
res = self._getphaserevsnative(repo)
|
|
|
self._loadedrevslen, self._phasesets = res
|
|
|
except AttributeError:
|
|
|
self._computephaserevspure(repo)
|
|
|
assert self._loadedrevslen == len(repo.changelog)
|
|
|
elif update > 0:
|
|
|
# good candidate for native code
|
|
|
assert update == self._loadedrevslen
|
|
|
if self.hasnonpublicphases(repo):
|
|
|
start = self._loadedrevslen
|
|
|
get_phase = self.phase
|
|
|
rev_phases = [0] * missing
|
|
|
parents = cl.parentrevs
|
|
|
sets = {phase: set() for phase in self._phasesets}
|
|
|
for phase, roots in self._phaseroots.items():
|
|
|
# XXX should really store the max somewhere
|
|
|
for r in roots:
|
|
|
if r >= start:
|
|
|
rev_phases[r - start] = phase
|
|
|
for rev in range(start, cl_size):
|
|
|
phase = rev_phases[rev - start]
|
|
|
p1, p2 = parents(rev)
|
|
|
if p1 == nullrev:
|
|
|
p1_phase = public
|
|
|
elif p1 >= start:
|
|
|
p1_phase = rev_phases[p1 - start]
|
|
|
else:
|
|
|
p1_phase = max(phase, get_phase(repo, p1))
|
|
|
if p2 == nullrev:
|
|
|
p2_phase = public
|
|
|
elif p2 >= start:
|
|
|
p2_phase = rev_phases[p2 - start]
|
|
|
else:
|
|
|
p2_phase = max(phase, get_phase(repo, p2))
|
|
|
phase = max(phase, p1_phase, p2_phase)
|
|
|
if phase > public:
|
|
|
rev_phases[rev - start] = phase
|
|
|
sets[phase].add(rev)
|
|
|
|
|
|
# Be careful to preserve shallow-copied values: do not update
|
|
|
# phaseroots values, replace them.
|
|
|
for phase, extra in sets.items():
|
|
|
if extra:
|
|
|
self._phasesets[phase] = self._phasesets[phase] | extra
|
|
|
self._loadedrevslen = cl_size
|
|
|
|
|
|
def invalidate(self):
|
|
|
self._loadedrevslen = 0
|
|
|
self._phasesets = None
|
|
|
|
|
|
def phase(self, repo: "localrepo.localrepository", rev: 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'))
|
|
|
# double check self._loadedrevslen to avoid an extra method call as
|
|
|
# python is slow for that.
|
|
|
if rev >= self._loadedrevslen:
|
|
|
self._ensure_phase_sets(repo.unfiltered())
|
|
|
for phase in trackedphases:
|
|
|
if rev in self._phasesets[phase]:
|
|
|
return phase
|
|
|
return public
|
|
|
|
|
|
def write(self, repo):
|
|
|
if not self.dirty:
|
|
|
return
|
|
|
f = repo.svfs(b'phaseroots', b'w', atomictemp=True, checkambig=True)
|
|
|
try:
|
|
|
self._write(repo.unfiltered(), f)
|
|
|
finally:
|
|
|
f.close()
|
|
|
|
|
|
def _write(self, repo, fp):
|
|
|
assert repo.filtername is None
|
|
|
to_node = repo.changelog.node
|
|
|
for phase, roots in self._phaseroots.items():
|
|
|
for r in sorted(roots):
|
|
|
h = to_node(r)
|
|
|
fp.write(b'%i %s\n' % (phase, hex(h)))
|
|
|
self.dirty = False
|
|
|
|
|
|
def _updateroots(self, repo, phase, newroots, tr, invalidate=True):
|
|
|
self._phaseroots[phase] = newroots
|
|
|
self.dirty = True
|
|
|
if invalidate:
|
|
|
self.invalidate()
|
|
|
|
|
|
assert repo.filtername is None
|
|
|
wrepo = weakref.ref(repo)
|
|
|
|
|
|
def tr_write(fp):
|
|
|
repo = wrepo()
|
|
|
assert repo is not None
|
|
|
self._write(repo, fp)
|
|
|
|
|
|
tr.addfilegenerator(b'phase', (b'phaseroots',), tr_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=None, 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
|
|
|
"""
|
|
|
if targetphase == public and not self.hasnonpublicphases(repo):
|
|
|
return set()
|
|
|
repo = repo.unfiltered()
|
|
|
cl = repo.changelog
|
|
|
torev = cl.index.rev
|
|
|
# Be careful to preserve shallow-copied values: do not update
|
|
|
# phaseroots values, replace them.
|
|
|
new_revs = set()
|
|
|
if revs is not None:
|
|
|
new_revs.update(revs)
|
|
|
if nodes is not None:
|
|
|
new_revs.update(torev(node) for node in nodes)
|
|
|
if not new_revs: # bail out early to avoid the loadphaserevs call
|
|
|
return (
|
|
|
set()
|
|
|
) # note: why do people call advanceboundary with nothing?
|
|
|
|
|
|
if tr is None:
|
|
|
phasetracking = None
|
|
|
else:
|
|
|
phasetracking = tr.changes.get(b'phases')
|
|
|
|
|
|
affectable_phases = sorted(
|
|
|
p for p in allphases if p > targetphase and self._phaseroots[p]
|
|
|
)
|
|
|
# filter revision already in the right phases
|
|
|
candidates = new_revs
|
|
|
new_revs = set()
|
|
|
self._ensure_phase_sets(repo)
|
|
|
for phase in affectable_phases:
|
|
|
found = candidates & self._phasesets[phase]
|
|
|
new_revs |= found
|
|
|
candidates -= found
|
|
|
if not candidates:
|
|
|
break
|
|
|
if not new_revs:
|
|
|
return set()
|
|
|
|
|
|
# search for affected high phase changesets and roots
|
|
|
seen = set(new_revs)
|
|
|
push = heapq.heappush
|
|
|
pop = heapq.heappop
|
|
|
parents = cl.parentrevs
|
|
|
get_phase = self.phase
|
|
|
changed = {} # set of revisions to be changed
|
|
|
# set of root deleted by this path
|
|
|
delroots = set()
|
|
|
new_roots = {p: set() for p in affectable_phases}
|
|
|
new_target_roots = set()
|
|
|
# revision to walk down
|
|
|
revs = [-r for r in new_revs]
|
|
|
heapq.heapify(revs)
|
|
|
while revs:
|
|
|
current = -pop(revs)
|
|
|
current_phase = get_phase(repo, current)
|
|
|
changed[current] = current_phase
|
|
|
p1, p2 = parents(current)
|
|
|
if p1 == nullrev:
|
|
|
p1_phase = public
|
|
|
else:
|
|
|
p1_phase = get_phase(repo, p1)
|
|
|
if p2 == nullrev:
|
|
|
p2_phase = public
|
|
|
else:
|
|
|
p2_phase = get_phase(repo, p2)
|
|
|
# do we have a root ?
|
|
|
if current_phase != p1_phase and current_phase != p2_phase:
|
|
|
# do not record phase, because we could have "duplicated"
|
|
|
# roots, were one root is shadowed by the very same roots of an
|
|
|
# higher phases
|
|
|
delroots.add(current)
|
|
|
# schedule a walk down if needed
|
|
|
if p1_phase > targetphase and p1 not in seen:
|
|
|
seen.add(p1)
|
|
|
push(revs, -p1)
|
|
|
if p2_phase > targetphase and p2 not in seen:
|
|
|
seen.add(p2)
|
|
|
push(revs, -p2)
|
|
|
if p1_phase < targetphase and p2_phase < targetphase:
|
|
|
new_target_roots.add(current)
|
|
|
|
|
|
# the last iteration was done with the smallest value
|
|
|
min_current = current
|
|
|
# do we have unwalked children that might be new roots
|
|
|
if (min_current + len(changed)) < len(cl):
|
|
|
for r in range(min_current, len(cl)):
|
|
|
if r in changed:
|
|
|
continue
|
|
|
phase = get_phase(repo, r)
|
|
|
if phase <= targetphase:
|
|
|
continue
|
|
|
p1, p2 = parents(r)
|
|
|
if not (p1 in changed or p2 in changed):
|
|
|
continue # not affected
|
|
|
if p1 != nullrev and p1 not in changed:
|
|
|
p1_phase = get_phase(repo, p1)
|
|
|
if p1_phase == phase:
|
|
|
continue # not a root
|
|
|
if p2 != nullrev and p2 not in changed:
|
|
|
p2_phase = get_phase(repo, p2)
|
|
|
if p2_phase == phase:
|
|
|
continue # not a root
|
|
|
new_roots[phase].add(r)
|
|
|
|
|
|
# apply the changes
|
|
|
if not dryrun:
|
|
|
for r, p in changed.items():
|
|
|
_trackphasechange(phasetracking, r, p, targetphase)
|
|
|
if targetphase > public:
|
|
|
self._phasesets[targetphase].update(changed)
|
|
|
for phase in affectable_phases:
|
|
|
roots = self._phaseroots[phase]
|
|
|
removed = roots & delroots
|
|
|
if removed or new_roots[phase]:
|
|
|
self._phasesets[phase].difference_update(changed)
|
|
|
# Be careful to preserve shallow-copied values: do not
|
|
|
# update phaseroots values, replace them.
|
|
|
final_roots = roots - delroots | new_roots[phase]
|
|
|
self._updateroots(
|
|
|
repo, phase, final_roots, tr, invalidate=False
|
|
|
)
|
|
|
if new_target_roots:
|
|
|
# Thanks for previous filtering, we can't replace existing
|
|
|
# roots
|
|
|
new_target_roots |= self._phaseroots[targetphase]
|
|
|
self._updateroots(
|
|
|
repo, targetphase, new_target_roots, tr, invalidate=False
|
|
|
)
|
|
|
repo.invalidatevolatilesets()
|
|
|
return changed
|
|
|
|
|
|
def retractboundary(self, repo, tr, targetphase, nodes):
|
|
|
if tr is None:
|
|
|
phasetracking = None
|
|
|
else:
|
|
|
phasetracking = tr.changes.get(b'phases')
|
|
|
repo = repo.unfiltered()
|
|
|
retracted = self._retractboundary(repo, tr, targetphase, nodes)
|
|
|
if retracted and phasetracking is not None:
|
|
|
for r, old_phase in sorted(retracted.items()):
|
|
|
_trackphasechange(phasetracking, r, old_phase, targetphase)
|
|
|
repo.invalidatevolatilesets()
|
|
|
|
|
|
def _retractboundary(self, repo, tr, targetphase, nodes=None, revs=None):
|
|
|
if targetphase == public:
|
|
|
return {}
|
|
|
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)
|
|
|
assert repo.filtername is None
|
|
|
cl = repo.changelog
|
|
|
torev = cl.index.rev
|
|
|
new_revs = set()
|
|
|
if revs is not None:
|
|
|
new_revs.update(revs)
|
|
|
if nodes is not None:
|
|
|
new_revs.update(torev(node) for node in nodes)
|
|
|
if not new_revs: # bail out early to avoid the loadphaserevs call
|
|
|
return {} # note: why do people call retractboundary with nothing ?
|
|
|
|
|
|
if nullrev in new_revs:
|
|
|
raise error.Abort(_(b'cannot change null revision phase'))
|
|
|
|
|
|
# Filter revision that are already in the right phase
|
|
|
self._ensure_phase_sets(repo)
|
|
|
for phase, revs in self._phasesets.items():
|
|
|
if phase >= targetphase:
|
|
|
new_revs -= revs
|
|
|
if not new_revs: # all revisions already in the right phases
|
|
|
return {}
|
|
|
|
|
|
# Compute change in phase roots by walking the graph
|
|
|
#
|
|
|
# note: If we had a cheap parent → children mapping we could do
|
|
|
# something even cheaper/more-bounded
|
|
|
#
|
|
|
# The idea would be to walk from item in new_revs stopping at
|
|
|
# descendant with phases >= target_phase.
|
|
|
#
|
|
|
# 1) This detect new_revs that are not new_roots (either already >=
|
|
|
# target_phase or reachable though another new_revs
|
|
|
# 2) This detect replaced current_roots as we reach them
|
|
|
# 3) This can avoid walking to the tip if we retract over a small
|
|
|
# branch.
|
|
|
#
|
|
|
# So instead, we do a variation of this, we walk from the smaller new
|
|
|
# revision to the tip to avoid missing any potential children.
|
|
|
#
|
|
|
# The following code would be a good candidate for native code… if only
|
|
|
# we could knew the phase of a changeset efficiently in native code.
|
|
|
parents = cl.parentrevs
|
|
|
phase = self.phase
|
|
|
new_roots = set() # roots added by this phases
|
|
|
changed_revs = {} # revision affected by this call
|
|
|
replaced_roots = set() # older roots replaced by this call
|
|
|
currentroots = self._phaseroots[targetphase]
|
|
|
start = min(new_revs)
|
|
|
end = len(cl)
|
|
|
rev_phases = [None] * (end - start)
|
|
|
|
|
|
this_phase_set = self._phasesets[targetphase]
|
|
|
for r in range(start, end):
|
|
|
|
|
|
# gather information about the current_rev
|
|
|
r_phase = phase(repo, r)
|
|
|
p_phase = None # phase inherited from parents
|
|
|
p1, p2 = parents(r)
|
|
|
if p1 >= start:
|
|
|
p1_phase = rev_phases[p1 - start]
|
|
|
if p1_phase is not None:
|
|
|
p_phase = p1_phase
|
|
|
if p2 >= start:
|
|
|
p2_phase = rev_phases[p2 - start]
|
|
|
if p2_phase is not None:
|
|
|
if p_phase is not None:
|
|
|
p_phase = max(p_phase, p2_phase)
|
|
|
else:
|
|
|
p_phase = p2_phase
|
|
|
|
|
|
# assess the situation
|
|
|
if r in new_revs and r_phase < targetphase:
|
|
|
if p_phase is None or p_phase < targetphase:
|
|
|
new_roots.add(r)
|
|
|
rev_phases[r - start] = targetphase
|
|
|
changed_revs[r] = r_phase
|
|
|
this_phase_set.add(r)
|
|
|
elif p_phase is None:
|
|
|
rev_phases[r - start] = r_phase
|
|
|
else:
|
|
|
if p_phase > r_phase:
|
|
|
rev_phases[r - start] = p_phase
|
|
|
else:
|
|
|
rev_phases[r - start] = r_phase
|
|
|
if p_phase == targetphase:
|
|
|
if p_phase > r_phase:
|
|
|
changed_revs[r] = r_phase
|
|
|
this_phase_set.add(r)
|
|
|
elif r in currentroots:
|
|
|
replaced_roots.add(r)
|
|
|
sets = self._phasesets
|
|
|
if targetphase > draft:
|
|
|
for r, old in changed_revs.items():
|
|
|
if old > public:
|
|
|
sets[old].discard(r)
|
|
|
|
|
|
if new_roots:
|
|
|
assert changed_revs
|
|
|
|
|
|
final_roots = new_roots | currentroots - replaced_roots
|
|
|
self._updateroots(
|
|
|
repo,
|
|
|
targetphase,
|
|
|
final_roots,
|
|
|
tr,
|
|
|
invalidate=False,
|
|
|
)
|
|
|
if targetphase > 1:
|
|
|
retracted = set(changed_revs)
|
|
|
for lower_phase in range(1, targetphase):
|
|
|
lower_roots = self._phaseroots.get(lower_phase)
|
|
|
if lower_roots is None:
|
|
|
continue
|
|
|
if lower_roots & retracted:
|
|
|
simpler_roots = lower_roots - retracted
|
|
|
self._updateroots(
|
|
|
repo,
|
|
|
lower_phase,
|
|
|
simpler_roots,
|
|
|
tr,
|
|
|
invalidate=False,
|
|
|
)
|
|
|
return changed_revs
|
|
|
else:
|
|
|
assert not changed_revs
|
|
|
assert not replaced_roots
|
|
|
return {}
|
|
|
|
|
|
def register_strip(
|
|
|
self,
|
|
|
repo,
|
|
|
tr,
|
|
|
strip_rev: int,
|
|
|
):
|
|
|
"""announce a strip to the phase cache
|
|
|
|
|
|
Any roots higher than the stripped revision should be dropped.
|
|
|
"""
|
|
|
for targetphase, roots in list(self._phaseroots.items()):
|
|
|
filtered = {r for r in roots if r >= strip_rev}
|
|
|
if filtered:
|
|
|
self._updateroots(repo, targetphase, roots - filtered, tr)
|
|
|
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: "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
|
|
|
to_node = cl.node
|
|
|
for root in repo._phasecache._phaseroots[draft]:
|
|
|
if repo._phasecache.phase(repo, root) <= draft:
|
|
|
keys[hex(to_node(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: "localrepo.localrepository",
|
|
|
nhex: bytes,
|
|
|
oldphasestr: bytes,
|
|
|
newphasestr: 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}
|
|
|
for phase in allphases:
|
|
|
revset = b"heads(%%ln & _phase(%d))" % 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 analyze_remote_phases(
|
|
|
repo,
|
|
|
subset: Collection[int],
|
|
|
roots: Dict[bytes, bytes],
|
|
|
) -> Tuple[Collection[int], Collection[int]]:
|
|
|
"""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
|
|
|
draft_roots = []
|
|
|
to_rev = repo.changelog.index.get_rev
|
|
|
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:
|
|
|
msg = _(b'ignoring inconsistent public root from remote: %s\n')
|
|
|
repo.ui.warn(msg % nhex)
|
|
|
elif phase == draft:
|
|
|
rev = to_rev(node)
|
|
|
if rev is not None: # to filter unknown nodes
|
|
|
draft_roots.append(rev)
|
|
|
else:
|
|
|
msg = _(b'ignoring unexpected root from remote: %i %s\n')
|
|
|
repo.ui.warn(msg % (phase, nhex))
|
|
|
# compute heads
|
|
|
public_heads = new_heads(repo, subset, draft_roots)
|
|
|
return public_heads, draft_roots
|
|
|
|
|
|
|
|
|
class RemotePhasesSummary:
|
|
|
"""summarize phase information on the remote side
|
|
|
|
|
|
:publishing: True is the remote is publishing
|
|
|
:public_heads: list of remote public phase heads (revs)
|
|
|
:draft_heads: list of remote draft phase heads (revs)
|
|
|
:draft_roots: list of remote draft phase root (revs)
|
|
|
"""
|
|
|
|
|
|
def __init__(
|
|
|
self,
|
|
|
repo,
|
|
|
remote_subset: Collection[int],
|
|
|
remote_roots: Dict[bytes, bytes],
|
|
|
):
|
|
|
unfi = repo.unfiltered()
|
|
|
self._allremoteroots: Dict[bytes, bytes] = remote_roots
|
|
|
|
|
|
self.publishing: bool = bool(remote_roots.get(b'publishing', False))
|
|
|
|
|
|
heads, roots = analyze_remote_phases(repo, remote_subset, remote_roots)
|
|
|
self.public_heads: Collection[int] = heads
|
|
|
self.draft_roots: Collection[int] = roots
|
|
|
# Get the list of all "heads" revs draft on remote
|
|
|
dheads = unfi.revs(b'heads(%ld::%ld)', roots, remote_subset)
|
|
|
self.draft_heads: Collection[int] = dheads
|
|
|
|
|
|
|
|
|
def new_heads(
|
|
|
repo,
|
|
|
heads: Collection[int],
|
|
|
roots: Collection[int],
|
|
|
) -> Collection[int]:
|
|
|
"""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
|
|
|
|
|
|
if not roots:
|
|
|
return heads
|
|
|
if not heads or heads == [nullrev]:
|
|
|
return []
|
|
|
# The logic operated on revisions, convert arguments early for convenience
|
|
|
# PERF-XXX: maybe heads could directly comes as a set without impacting
|
|
|
# other user of that value
|
|
|
new_heads = set(heads)
|
|
|
new_heads.discard(nullrev)
|
|
|
# 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)
|
|
|
|
|
|
# PERF-XXX: do we actually need a sorted list here? Could we simply return
|
|
|
# a set?
|
|
|
return sorted(new_heads)
|
|
|
|
|
|
|
|
|
def newcommitphase(ui: "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: "localrepo.localrepository") -> bool:
|
|
|
"""utility function that check if a repo have any secret changeset."""
|
|
|
return bool(repo._phasecache._phaseroots[secret])
|
|
|
|
|
|
|
|
|
def preparehookargs(
|
|
|
node: bytes,
|
|
|
old: Optional[int],
|
|
|
new: 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]}
|
|
|
|
