mirror of
https://github.com/facebook/sapling.git
synced 2024-10-12 09:48:05 +03:00
76c5b37722
Summary: This is regulary not the case if Commit Cloud enabled, if a lot of work is done on one machine 1, then cloud sync is done on another machine (machine 2), we sync draft not obsolete heads and all history of obsmarkers, but there is no guarantee we download all the obsoleted commits to the machine 2. So, there can be a sequence of obsmarkers from commit A to commit B, when some commit in between hasn't been fetched to the machine 2. Function obsutil.allsuccessors returns all successors (not only final successors) and it is intentionally do not check presence in the repo. Reviewed By: DurhamG Differential Revision: D8009823 fbshipit-source-id: f6b90011acaa518f71a2033eb2b885b27a7f06e7
2007 lines
80 KiB
Python
2007 lines
80 KiB
Python
# rebase.py - rebasing feature for mercurial
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#
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# Copyright 2008 Stefano Tortarolo <stefano.tortarolo at gmail dot com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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'''command to move sets of revisions to a different ancestor
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This extension lets you rebase changesets in an existing Mercurial
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repository.
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For more information:
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https://mercurial-scm.org/wiki/RebaseExtension
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'''
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from __future__ import absolute_import
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import errno
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import os
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from mercurial.i18n import _
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from mercurial.node import (
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nullid,
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nullrev,
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short,
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)
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from mercurial import (
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bookmarks,
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cmdutil,
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commands,
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copies,
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destutil,
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dirstateguard,
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error,
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extensions,
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hg,
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lock,
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merge as mergemod,
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mergeutil,
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obsolete,
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obsutil,
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patch,
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phases,
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progress,
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pycompat,
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registrar,
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repair,
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revset,
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revsetlang,
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scmutil,
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smartset,
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templatefilters,
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util,
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)
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release = lock.release
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# The following constants are used throughout the rebase module. The ordering of
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# their values must be maintained.
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# Indicates that a revision needs to be rebased
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revtodo = -1
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revtodostr = '-1'
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# legacy revstates no longer needed in current code
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# -2: nullmerge, -3: revignored, -4: revprecursor, -5: revpruned
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legacystates = {'-2', '-3', '-4', '-5'}
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cmdtable = {}
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command = registrar.command(cmdtable)
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# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
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# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
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# be specifying the version(s) of Mercurial they are tested with, or
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# leave the attribute unspecified.
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testedwith = 'ships-with-hg-core'
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colortable = {'rebase.manual.update': 'yellow'}
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def _nothingtorebase():
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return 1
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def _savegraft(ctx, extra):
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s = ctx.extra().get('source', None)
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if s is not None:
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extra['source'] = s
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s = ctx.extra().get('intermediate-source', None)
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if s is not None:
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extra['intermediate-source'] = s
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def _savebranch(ctx, extra):
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extra['branch'] = ctx.branch()
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def _makeextrafn(copiers):
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"""make an extrafn out of the given copy-functions.
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A copy function takes a context and an extra dict, and mutates the
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extra dict as needed based on the given context.
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"""
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def extrafn(ctx, extra):
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for c in copiers:
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c(ctx, extra)
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return extrafn
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def _destrebase(repo, sourceset, destspace=None):
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"""small wrapper around destmerge to pass the right extra args
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Please wrap destutil.destmerge instead."""
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return destutil.destmerge(repo, action='rebase', sourceset=sourceset,
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onheadcheck=False, destspace=destspace)
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revsetpredicate = registrar.revsetpredicate()
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@revsetpredicate('_destrebase')
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def _revsetdestrebase(repo, subset, x):
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# ``_rebasedefaultdest()``
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# default destination for rebase.
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# # XXX: Currently private because I expect the signature to change.
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# # XXX: - bailing out in case of ambiguity vs returning all data.
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# i18n: "_rebasedefaultdest" is a keyword
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sourceset = None
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if x is not None:
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sourceset = revset.getset(repo, smartset.fullreposet(repo), x)
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return subset & smartset.baseset([_destrebase(repo, sourceset)])
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def _ctxdesc(ctx):
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"""short description for a context"""
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desc = '%d:%s "%s"' % (ctx.rev(), ctx,
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ctx.description().split('\n', 1)[0])
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repo = ctx.repo()
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names = []
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for nsname, ns in repo.names.iteritems():
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if nsname == 'branches':
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continue
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names.extend(ns.names(repo, ctx.node()))
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if names:
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desc += ' (%s)' % ' '.join(names)
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return desc
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class rebaseruntime(object):
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"""This class is a container for rebase runtime state"""
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def __init__(self, repo, ui, inmemory=False, opts=None):
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if opts is None:
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opts = {}
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# prepared: whether we have rebasestate prepared or not. Currently it
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# decides whether "self.repo" is unfiltered or not.
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# The rebasestate has explicit hash to hash instructions not depending
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# on visibility. If rebasestate exists (in-memory or on-disk), use
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# unfiltered repo to avoid visibility issues.
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# Before knowing rebasestate (i.e. when starting a new rebase (not
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# --continue or --abort)), the original repo should be used so
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# visibility-dependent revsets are correct.
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self.prepared = False
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self._repo = repo
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self.ui = ui
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self.opts = opts
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self.originalwd = None
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self.external = nullrev
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# Mapping between the old revision id and either what is the new rebased
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# revision or what needs to be done with the old revision. The state
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# dict will be what contains most of the rebase progress state.
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self.state = {}
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self.activebookmark = None
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self.destmap = {}
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self.skipped = set()
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self.collapsef = opts.get('collapse', False)
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self.collapsemsg = cmdutil.logmessage(ui, opts)
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self.date = opts.get('date', None)
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e = opts.get('extrafn') # internal, used by e.g. hgsubversion
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self.extrafns = [_savegraft]
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if e:
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self.extrafns = [e]
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self.keepf = opts.get('keep', False)
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self.keepbranchesf = opts.get('keepbranches', False)
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# keepopen is not meant for use on the command line, but by
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# other extensions
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self.keepopen = opts.get('keepopen', False)
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self.obsoletenotrebased = {}
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self.obsoletewithoutsuccessorindestination = set()
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self.inmemory = inmemory
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@property
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def repo(self):
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if self.prepared:
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return self._repo.unfiltered()
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else:
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return self._repo
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def storestatus(self, tr=None):
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"""Store the current status to allow recovery"""
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if tr:
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tr.addfilegenerator('rebasestate', ('rebasestate',),
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self._writestatus, location='plain')
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else:
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with self.repo.vfs("rebasestate", "w") as f:
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self._writestatus(f)
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def _writestatus(self, f):
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repo = self.repo
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assert repo.filtername is None
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f.write(repo[self.originalwd].hex() + '\n')
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# was "dest". we now write dest per src root below.
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f.write('\n')
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f.write(repo[self.external].hex() + '\n')
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f.write('%d\n' % int(self.collapsef))
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f.write('%d\n' % int(self.keepf))
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f.write('%d\n' % int(self.keepbranchesf))
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f.write('%s\n' % (self.activebookmark or ''))
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destmap = self.destmap
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for d, v in self.state.iteritems():
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oldrev = repo[d].hex()
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if v >= 0:
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newrev = repo[v].hex()
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else:
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newrev = v
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destnode = repo[destmap[d]].hex()
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f.write("%s:%s:%s\n" % (oldrev, newrev, destnode))
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repo.ui.debug('rebase status stored\n')
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def restorestatus(self):
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"""Restore a previously stored status"""
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self.prepared = True
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repo = self.repo
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assert repo.filtername is None
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keepbranches = None
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legacydest = None
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collapse = False
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external = nullrev
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activebookmark = None
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state = {}
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destmap = {}
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try:
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f = repo.vfs("rebasestate")
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for i, l in enumerate(f.read().splitlines()):
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if i == 0:
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originalwd = repo[l].rev()
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elif i == 1:
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# this line should be empty in newer version. but legacy
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# clients may still use it
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if l:
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legacydest = repo[l].rev()
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elif i == 2:
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external = repo[l].rev()
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elif i == 3:
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collapse = bool(int(l))
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elif i == 4:
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keep = bool(int(l))
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elif i == 5:
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keepbranches = bool(int(l))
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elif i == 6 and not (len(l) == 81 and ':' in l):
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# line 6 is a recent addition, so for backwards
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# compatibility check that the line doesn't look like the
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# oldrev:newrev lines
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activebookmark = l
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else:
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args = l.split(':')
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oldrev = args[0]
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newrev = args[1]
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if newrev in legacystates:
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continue
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if len(args) > 2:
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destnode = args[2]
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else:
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destnode = legacydest
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destmap[repo[oldrev].rev()] = repo[destnode].rev()
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if newrev in (nullid, revtodostr):
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state[repo[oldrev].rev()] = revtodo
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# Legacy compat special case
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else:
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state[repo[oldrev].rev()] = repo[newrev].rev()
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except IOError as err:
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if err.errno != errno.ENOENT:
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raise
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cmdutil.wrongtooltocontinue(repo, _('rebase'))
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if keepbranches is None:
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raise error.Abort(_('.hg/rebasestate is incomplete'))
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skipped = set()
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# recompute the set of skipped revs
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if not collapse:
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seen = set(destmap.values())
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for old, new in sorted(state.items()):
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if new != revtodo and new in seen:
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skipped.add(old)
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seen.add(new)
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repo.ui.debug('computed skipped revs: %s\n' %
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(' '.join(str(r) for r in sorted(skipped)) or None))
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repo.ui.debug('rebase status resumed\n')
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self.originalwd = originalwd
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self.destmap = destmap
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self.state = state
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self.skipped = skipped
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self.collapsef = collapse
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self.keepf = keep
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self.keepbranchesf = keepbranches
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self.external = external
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self.activebookmark = activebookmark
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def _handleskippingobsolete(self, obsoleterevs, destmap):
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"""Compute structures necessary for skipping obsolete revisions
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obsoleterevs: iterable of all obsolete revisions in rebaseset
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destmap: {srcrev: destrev} destination revisions
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"""
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self.obsoletenotrebased = {}
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if not self.ui.configbool('experimental', 'rebaseskipobsolete'):
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return
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obsoleteset = set(obsoleterevs)
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self.obsoletenotrebased, self.obsoletewithoutsuccessorindestination = \
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_computeobsoletenotrebased(self.repo, obsoleteset, destmap)
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skippedset = set(self.obsoletenotrebased)
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skippedset.update(self.obsoletewithoutsuccessorindestination)
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_checkobsrebase(self.repo, self.ui, obsoleteset, skippedset)
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def _prepareabortorcontinue(self, isabort):
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try:
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self.restorestatus()
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if self.collapsef:
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self.collapsemsg = restorecollapsemsg(self.repo, isabort)
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except error.RepoLookupError:
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if isabort:
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clearstatus(self.repo)
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clearcollapsemsg(self.repo)
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self.repo.ui.warn(_('rebase aborted (no revision is removed,'
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' only broken state is cleared)\n'))
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return 0
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else:
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msg = _('cannot continue inconsistent rebase')
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hint = _('use "hg rebase --abort" to clear broken state')
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raise error.Abort(msg, hint=hint)
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if isabort:
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return abort(self.repo, self.originalwd, self.destmap,
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self.state, activebookmark=self.activebookmark)
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def _preparenewrebase(self, destmap):
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if not destmap:
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return _nothingtorebase()
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rebaseset = destmap.keys()
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allowunstable = obsolete.isenabled(self.repo, obsolete.allowunstableopt)
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if (not (self.keepf or allowunstable)
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and self.repo.revs('first(children(%ld) - %ld)',
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rebaseset, rebaseset)):
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raise error.Abort(
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_("can't remove original changesets with"
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" unrebased descendants"),
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hint=_('use --keep to keep original changesets'))
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result = buildstate(self.repo, destmap, self.collapsef)
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if not result:
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# Empty state built, nothing to rebase
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self.ui.status(_('nothing to rebase\n'))
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return _nothingtorebase()
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for root in self.repo.set('roots(%ld)', rebaseset):
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if not self.keepf and not root.mutable():
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raise error.Abort(_("can't rebase public changeset %s")
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% root,
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hint=_("see 'hg help phases' for details"))
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(self.originalwd, self.destmap, self.state) = result
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if self.collapsef:
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dests = set(self.destmap.values())
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if len(dests) != 1:
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raise error.Abort(
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_('--collapse does not work with multiple destinations'))
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destrev = next(iter(dests))
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destancestors = self.repo.changelog.ancestors([destrev],
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inclusive=True)
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self.external = externalparent(self.repo, self.state, destancestors)
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for destrev in sorted(set(destmap.values())):
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dest = self.repo[destrev]
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if dest.closesbranch() and not self.keepbranchesf:
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self.ui.status(_('reopening closed branch head %s\n') % dest)
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self.prepared = True
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def _assignworkingcopy(self):
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if self.inmemory:
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from mercurial.context import overlayworkingctx
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self.wctx = overlayworkingctx(self.repo)
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self.repo.ui.debug("rebasing in-memory\n")
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msg = self.repo.ui.config('rebase', 'experimental.inmemorywarning')
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if msg:
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self.repo.ui.warn(msg + '\n')
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else:
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self.wctx = self.repo[None]
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self.repo.ui.debug("rebasing on disk\n")
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self.repo.ui.log("rebase", "", rebase_imm_used=self.wctx.isinmemory())
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def _performrebase(self, tr):
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self._assignworkingcopy()
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repo, ui = self.repo, self.ui
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if self.keepbranchesf:
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# insert _savebranch at the start of extrafns so if
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# there's a user-provided extrafn it can clobber branch if
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# desired
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self.extrafns.insert(0, _savebranch)
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if self.collapsef:
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branches = set()
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for rev in self.state:
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branches.add(repo[rev].branch())
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if len(branches) > 1:
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raise error.Abort(_('cannot collapse multiple named '
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'branches'))
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# Calculate self.obsoletenotrebased
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obsrevs = _filterobsoleterevs(self.repo, self.state)
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self._handleskippingobsolete(obsrevs, self.destmap)
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# Keep track of the active bookmarks in order to reset them later
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self.activebookmark = self.activebookmark or repo._activebookmark
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if self.activebookmark:
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bookmarks.deactivate(repo)
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# Store the state before we begin so users can run 'hg rebase --abort'
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# if we fail before the transaction closes.
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self.storestatus()
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cands = [k for k, v in self.state.iteritems() if v == revtodo]
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total = len(cands)
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pos = 0
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with progress.bar(ui, _('rebasing'), _('changesets'), total) as prog:
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for subset in sortsource(self.destmap):
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pos = self._performrebasesubset(tr, subset, pos, prog)
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ui.note(_('rebase merging completed\n'))
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def _performrebasesubset(self, tr, subset, pos, prog):
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repo, ui, opts = self.repo, self.ui, self.opts
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sortedrevs = repo.revs('sort(%ld, -topo)', subset)
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allowdivergence = self.ui.configbool(
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'experimental', 'evolution.allowdivergence')
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if not allowdivergence:
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sortedrevs -= repo.revs(
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'descendants(%ld) and not %ld',
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self.obsoletewithoutsuccessorindestination,
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self.obsoletewithoutsuccessorindestination,
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)
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for rev in sortedrevs:
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dest = self.destmap[rev]
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ctx = repo[rev]
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desc = _ctxdesc(ctx)
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if self.state[rev] == rev:
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ui.status(_('already rebased %s\n') % desc)
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elif (not allowdivergence
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and rev in self.obsoletewithoutsuccessorindestination):
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msg = _('note: not rebasing %s and its descendants as '
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'this would cause divergence\n') % desc
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repo.ui.status(msg)
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self.skipped.add(rev)
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elif rev in self.obsoletenotrebased:
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succ = self.obsoletenotrebased[rev]
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if succ is None:
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msg = _('note: not rebasing %s, it has no '
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'successor\n') % desc
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else:
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succdesc = _ctxdesc(repo[succ])
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msg = (_('note: not rebasing %s, already in '
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'destination as %s\n') % (desc, succdesc))
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repo.ui.status(msg)
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# Make clearrebased aware state[rev] is not a true successor
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self.skipped.add(rev)
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# Record rev as moved to its desired destination in self.state.
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# This helps bookmark and working parent movement.
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dest = max(adjustdest(repo, rev, self.destmap, self.state,
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self.skipped))
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self.state[rev] = dest
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elif self.state[rev] == revtodo:
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pos += 1
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ui.status(_('rebasing %s\n') % desc)
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prog.value = (pos, "%d:%s" % (rev, ctx))
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p1, p2, base = defineparents(repo, rev, self.destmap,
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self.state, self.skipped,
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self.obsoletenotrebased)
|
|
self.storestatus(tr=tr)
|
|
storecollapsemsg(repo, self.collapsemsg)
|
|
if len(repo[None].parents()) == 2:
|
|
repo.ui.debug('resuming interrupted rebase\n')
|
|
else:
|
|
try:
|
|
ui.setconfig('ui', 'forcemerge', opts.get('tool', ''),
|
|
'rebase')
|
|
stats = rebasenode(repo, rev, p1, base, self.state,
|
|
self.collapsef, dest, wctx=self.wctx)
|
|
if stats and stats[3] > 0:
|
|
if self.wctx.isinmemory():
|
|
raise error.InMemoryMergeConflictsError()
|
|
else:
|
|
raise error.InterventionRequired(
|
|
_('unresolved conflicts (see hg '
|
|
'resolve, then hg rebase --continue)'))
|
|
finally:
|
|
ui.setconfig('ui', 'forcemerge', '', 'rebase')
|
|
if not self.collapsef:
|
|
merging = p2 != nullrev
|
|
editform = cmdutil.mergeeditform(merging, 'rebase')
|
|
editor = cmdutil.getcommiteditor(editform=editform, **opts)
|
|
if self.wctx.isinmemory():
|
|
newnode = concludememorynode(repo, rev, p1, p2,
|
|
wctx=self.wctx,
|
|
extrafn=_makeextrafn(self.extrafns),
|
|
editor=editor,
|
|
keepbranches=self.keepbranchesf,
|
|
date=self.date)
|
|
mergemod.mergestate.clean(repo)
|
|
else:
|
|
newnode = concludenode(repo, rev, p1, p2,
|
|
extrafn=_makeextrafn(self.extrafns),
|
|
editor=editor,
|
|
keepbranches=self.keepbranchesf,
|
|
date=self.date)
|
|
|
|
if newnode is None:
|
|
# If it ended up being a no-op commit, then the normal
|
|
# merge state clean-up path doesn't happen, so do it
|
|
# here. Fix issue5494
|
|
mergemod.mergestate.clean(repo)
|
|
else:
|
|
# Skip commit if we are collapsing
|
|
if self.wctx.isinmemory():
|
|
self.wctx.setbase(repo[p1])
|
|
else:
|
|
repo.setparents(repo[p1].node())
|
|
newnode = None
|
|
# Update the state
|
|
if newnode is not None:
|
|
self.state[rev] = repo[newnode].rev()
|
|
ui.debug('rebased as %s\n' % short(newnode))
|
|
else:
|
|
if not self.collapsef:
|
|
ui.warn(_('note: rebase of %d:%s created no changes '
|
|
'to commit\n') % (rev, ctx))
|
|
self.skipped.add(rev)
|
|
self.state[rev] = p1
|
|
ui.debug('next revision set to %s\n' % p1)
|
|
else:
|
|
ui.status(_('already rebased %s as %s\n') %
|
|
(desc, repo[self.state[rev]]))
|
|
return pos
|
|
|
|
def _finishrebase(self):
|
|
repo, ui, opts = self.repo, self.ui, self.opts
|
|
fm = ui.formatter('rebase', opts)
|
|
fm.startitem()
|
|
if self.collapsef and not self.keepopen:
|
|
p1, p2, _base = defineparents(repo, min(self.state), self.destmap,
|
|
self.state, self.skipped,
|
|
self.obsoletenotrebased)
|
|
editopt = opts.get('edit')
|
|
editform = 'rebase.collapse'
|
|
if self.collapsemsg:
|
|
commitmsg = self.collapsemsg
|
|
else:
|
|
commitmsg = 'Collapsed revision'
|
|
for rebased in sorted(self.state):
|
|
if rebased not in self.skipped:
|
|
commitmsg += '\n* %s' % repo[rebased].description()
|
|
editopt = True
|
|
editor = cmdutil.getcommiteditor(edit=editopt, editform=editform)
|
|
revtoreuse = max(self.state)
|
|
|
|
dsguard = None
|
|
if self.inmemory:
|
|
newnode = concludememorynode(repo, revtoreuse, p1,
|
|
self.external,
|
|
commitmsg=commitmsg,
|
|
extrafn=_makeextrafn(self.extrafns),
|
|
editor=editor,
|
|
keepbranches=self.keepbranchesf,
|
|
date=self.date, wctx=self.wctx)
|
|
else:
|
|
if ui.configbool('rebase', 'singletransaction'):
|
|
dsguard = dirstateguard.dirstateguard(repo, 'rebase')
|
|
with util.acceptintervention(dsguard):
|
|
newnode = concludenode(repo, revtoreuse, p1, self.external,
|
|
commitmsg=commitmsg,
|
|
extrafn=_makeextrafn(self.extrafns),
|
|
editor=editor,
|
|
keepbranches=self.keepbranchesf,
|
|
date=self.date)
|
|
if newnode is not None:
|
|
newrev = repo[newnode].rev()
|
|
for oldrev in self.state.iterkeys():
|
|
self.state[oldrev] = newrev
|
|
|
|
if 'qtip' in repo.tags():
|
|
updatemq(repo, self.state, self.skipped, **opts)
|
|
|
|
# restore original working directory
|
|
# (we do this before stripping)
|
|
newwd = self.state.get(self.originalwd, self.originalwd)
|
|
if newwd < 0:
|
|
# original directory is a parent of rebase set root or ignored
|
|
newwd = self.originalwd
|
|
|
|
if newwd not in [c.rev() for c in repo[None].parents()]:
|
|
ui.note(_("update back to initial working directory parent\n"))
|
|
try:
|
|
hg.updaterepo(repo, newwd, False)
|
|
except error.UpdateAbort:
|
|
if self.inmemory:
|
|
# Print a nice message rather than aborting/restarting.
|
|
newctx = repo[newwd]
|
|
firstline = templatefilters.firstline(newctx.description())
|
|
ui.warn(_("important: run `hg up %s` to get the new "
|
|
"version of your current commit (\"%s\")\n"
|
|
"(this was not done automatically because you "
|
|
"made working copy changes during the "
|
|
"rebase)\n") %
|
|
(short(newctx.node()), firstline),
|
|
label='rebase.manual.update')
|
|
else:
|
|
raise # Keep old behavior
|
|
|
|
collapsedas = None
|
|
if not self.keepf:
|
|
if self.collapsef:
|
|
collapsedas = newnode
|
|
clearrebased(ui, repo, self.destmap, self.state, self.skipped,
|
|
collapsedas, self.keepf, fm=fm)
|
|
|
|
clearstatus(repo)
|
|
clearcollapsemsg(repo)
|
|
|
|
ui.note(_("rebase completed\n"))
|
|
util.unlinkpath(repo.sjoin('undo'), ignoremissing=True)
|
|
if self.skipped:
|
|
skippedlen = len(self.skipped)
|
|
ui.note(_("%d revisions have been skipped\n") % skippedlen)
|
|
fm.end()
|
|
|
|
if (self.activebookmark and self.activebookmark in repo._bookmarks and
|
|
repo['.'].node() == repo._bookmarks[self.activebookmark]):
|
|
bookmarks.activate(repo, self.activebookmark)
|
|
|
|
@command('rebase',
|
|
[('s', 'source', '',
|
|
_('rebase the specified changeset and descendants'), _('REV')),
|
|
('b', 'base', '',
|
|
_('rebase everything from branching point of specified changeset'),
|
|
_('REV')),
|
|
('r', 'rev', [],
|
|
_('rebase these revisions'),
|
|
_('REV')),
|
|
('d', 'dest', '',
|
|
_('rebase onto the specified changeset'), _('REV')),
|
|
('', 'collapse', False, _('collapse the rebased changesets')),
|
|
('m', 'message', '',
|
|
_('use text as collapse commit message'), _('TEXT')),
|
|
('e', 'edit', False, _('invoke editor on commit messages')),
|
|
('l', 'logfile', '',
|
|
_('read collapse commit message from file'), _('FILE')),
|
|
('k', 'keep', False, _('keep original changesets')),
|
|
('', 'keepbranches', False, _('keep original branch names')),
|
|
('D', 'detach', False, _('(DEPRECATED)')),
|
|
('i', 'interactive', False, _('(DEPRECATED)')),
|
|
('t', 'tool', '', _('specify merge tool')),
|
|
('c', 'continue', False, _('continue an interrupted rebase')),
|
|
('a', 'abort', False, _('abort an interrupted rebase'))] +
|
|
cmdutil.formatteropts,
|
|
_('[-s REV | -b REV] [-d REV] [OPTION]'))
|
|
def rebase(ui, repo, **opts):
|
|
"""move changeset (and descendants) to a different branch
|
|
|
|
Rebase uses repeated merging to graft changesets from one part of
|
|
history (the source) onto another (the destination). This can be
|
|
useful for linearizing *local* changes relative to a master
|
|
development tree.
|
|
|
|
Published commits cannot be rebased (see :hg:`help phases`).
|
|
To copy commits, see :hg:`help graft`.
|
|
|
|
If you don't specify a destination changeset (``-d/--dest``), rebase
|
|
will use the same logic as :hg:`merge` to pick a destination. if
|
|
the current branch contains exactly one other head, the other head
|
|
is merged with by default. Otherwise, an explicit revision with
|
|
which to merge with must be provided. (destination changeset is not
|
|
modified by rebasing, but new changesets are added as its
|
|
descendants.)
|
|
|
|
Here are the ways to select changesets:
|
|
|
|
1. Explicitly select them using ``--rev``.
|
|
|
|
2. Use ``--source`` to select a root changeset and include all of its
|
|
descendants.
|
|
|
|
3. Use ``--base`` to select a changeset; rebase will find ancestors
|
|
and their descendants which are not also ancestors of the destination.
|
|
|
|
4. If you do not specify any of ``--rev``, ``source``, or ``--base``,
|
|
rebase will use ``--base .`` as above.
|
|
|
|
If ``--source`` or ``--rev`` is used, special names ``SRC`` and ``ALLSRC``
|
|
can be used in ``--dest``. Destination would be calculated per source
|
|
revision with ``SRC`` substituted by that single source revision and
|
|
``ALLSRC`` substituted by all source revisions.
|
|
|
|
Rebase will destroy original changesets unless you use ``--keep``.
|
|
It will also move your bookmarks (even if you do).
|
|
|
|
Some changesets may be dropped if they do not contribute changes
|
|
(e.g. merges from the destination branch).
|
|
|
|
Unlike ``merge``, rebase will do nothing if you are at the branch tip of
|
|
a named branch with two heads. You will need to explicitly specify source
|
|
and/or destination.
|
|
|
|
If you need to use a tool to automate merge/conflict decisions, you
|
|
can specify one with ``--tool``, see :hg:`help merge-tools`.
|
|
As a caveat: the tool will not be used to mediate when a file was
|
|
deleted, there is no hook presently available for this.
|
|
|
|
If a rebase is interrupted to manually resolve a conflict, it can be
|
|
continued with --continue/-c or aborted with --abort/-a.
|
|
|
|
.. container:: verbose
|
|
|
|
Examples:
|
|
|
|
- move "local changes" (current commit back to branching point)
|
|
to the current branch tip after a pull::
|
|
|
|
hg rebase
|
|
|
|
- move a single changeset to the stable branch::
|
|
|
|
hg rebase -r 5f493448 -d stable
|
|
|
|
- splice a commit and all its descendants onto another part of history::
|
|
|
|
hg rebase --source c0c3 --dest 4cf9
|
|
|
|
- rebase everything on a branch marked by a bookmark onto the
|
|
default branch::
|
|
|
|
hg rebase --base myfeature --dest default
|
|
|
|
- collapse a sequence of changes into a single commit::
|
|
|
|
hg rebase --collapse -r 1520:1525 -d .
|
|
|
|
- move a named branch while preserving its name::
|
|
|
|
hg rebase -r "branch(featureX)" -d 1.3 --keepbranches
|
|
|
|
- stabilize orphaned changesets so history looks linear::
|
|
|
|
hg rebase -r 'orphan()-obsolete()'\
|
|
-d 'first(max((successors(max(roots(ALLSRC) & ::SRC)^)-obsolete())::) +\
|
|
max(::((roots(ALLSRC) & ::SRC)^)-obsolete()))'
|
|
|
|
Configuration Options:
|
|
|
|
You can make rebase require a destination if you set the following config
|
|
option::
|
|
|
|
[commands]
|
|
rebase.requiredest = True
|
|
|
|
By default, rebase will close the transaction after each commit. For
|
|
performance purposes, you can configure rebase to use a single transaction
|
|
across the entire rebase. WARNING: This setting introduces a significant
|
|
risk of losing the work you've done in a rebase if the rebase aborts
|
|
unexpectedly::
|
|
|
|
[rebase]
|
|
singletransaction = True
|
|
|
|
By default, rebase writes to the working copy, but you can configure it to
|
|
run in-memory for for better performance, and to allow it to run if the
|
|
working copy is dirty::
|
|
|
|
[rebase]
|
|
experimental.inmemory = True
|
|
|
|
This won't rebase the working copy by default, but you can change that::
|
|
|
|
[rebase]
|
|
experimental.inmemory.canrebaseworkingcopy = True
|
|
|
|
It will also print a configurable warning::
|
|
|
|
[rebase]
|
|
experimental.inmemorywarning = Using experimental in-memory rebase
|
|
|
|
It will not run if any file paths in the source set match a particular
|
|
config::
|
|
|
|
[rebase]
|
|
experimental.inmemorydisallowedpaths = Types.php|build.jar
|
|
|
|
By default, it will not run if a mergedriver is configured, unless you set
|
|
the following config to False::
|
|
|
|
[rebase]
|
|
experimental.inmemory.nomergedriver = True
|
|
|
|
Return Values:
|
|
|
|
Returns 0 on success, 1 if nothing to rebase or there are
|
|
unresolved conflicts.
|
|
|
|
"""
|
|
inmemory = ui.configbool('rebase', 'experimental.inmemory')
|
|
|
|
# Check for conditions that disable in-memory merge if it was requested.
|
|
if inmemory:
|
|
whynotimm = None
|
|
|
|
# in-memory rebase is not compatible with resuming rebases.
|
|
if opts.get('continue') or opts.get('abort'):
|
|
whynotimm = "--continue or --abort passed"
|
|
|
|
# in-memory rebase cannot currently run within a parent transaction,
|
|
# since the restarting logic will fail the entire transaction.
|
|
elif repo.currenttransaction() is not None:
|
|
whynotimm = "rebase run inside a transaction"
|
|
|
|
# in-memory rebase can be configured not to run if a mergedriver is
|
|
# configured; this should be used only if the driver's preprocess()
|
|
# scripts might use the working copy.
|
|
#
|
|
# (Note: Even without this config, IMM will still abort if any files are
|
|
# marked by preprocess() to be driver-resolved; however, sometimes the
|
|
# preprocess() function itself can't be trusted.)
|
|
#
|
|
# TODO(phillco): Replace with decorators on the scripts themselves
|
|
elif (ui.config('experimental', 'mergedriver') and
|
|
ui.configbool('rebase',
|
|
'experimental.inmemory.nomergedriver', True)):
|
|
whynotimm = 'mergedriver enabled'
|
|
|
|
if whynotimm:
|
|
ui.log("rebase", "disabling IMM because: %s" % whynotimm,
|
|
why_not_imm=whynotimm)
|
|
inmemory = False
|
|
|
|
opts = pycompat.byteskwargs(opts)
|
|
rbsrt = rebaseruntime(repo, ui, inmemory, opts)
|
|
|
|
if rbsrt.inmemory:
|
|
try:
|
|
overrides = {
|
|
# It's important to check for path conflicts with IMM to
|
|
# prevent commits with path<>file conflicts from being created
|
|
# (if you rebase on disk the filesystem prevents you from doing
|
|
# this).
|
|
("experimental", "merge.checkpathconflicts"): True
|
|
}
|
|
with ui.configoverride(overrides):
|
|
return _origrebase(ui, repo, rbsrt, **opts)
|
|
except error.InterventionRequired:
|
|
# This can occur if in-memory was turned off and then legitimate
|
|
# conflicts were raised. Raise as usual.
|
|
raise
|
|
except error.UncommitedChangesAbort:
|
|
# This is a legitimate error with IMM when rebasing the working
|
|
# copy. Throw it up to the user.
|
|
raise
|
|
except error.UpdateAbort:
|
|
# Same as `UncommitedChangesAbort`.
|
|
raise
|
|
except error.InMemoryMergeConflictsError as e:
|
|
# in-memory merge doesn't support conflicts, so if we hit any, abort
|
|
# and re-run as an on-disk merge.
|
|
ui.warn(('hit merge conflicts; using on-disk merge instead '
|
|
'(%s)\n' % e))
|
|
ui.log("rebase", "", rebase_imm_restart=True)
|
|
cmdutil.bailifchanged(repo,
|
|
hint=_('commit, shelve or remove them, then rerun the rebase'))
|
|
rbsrt.inmemory = False
|
|
_origrebase(ui, repo, rbsrt, **{'abort': True})
|
|
return _origrebase(ui, repo, rbsrt, **opts)
|
|
except Exception as e:
|
|
# Catch generic exceptions and restart the rebase without IMM. Any
|
|
# cases that _shouldn't_ restart must be caught above.
|
|
# In-memory merge can be turned off during `_origrebase` (see
|
|
# `_shoulddisableimm()`). So we double check the value of
|
|
# `rbsrt.inmemory`.
|
|
if rbsrt.inmemory:
|
|
ui.warn(('hit error; using on-disk merge instead '
|
|
'(%s)\n' % e))
|
|
ui.log("rebase", "", rebase_imm_restart=True,
|
|
rebase_imm_exception=str(e))
|
|
inmemory = False
|
|
cmdutil.bailifchanged(repo,
|
|
hint=_('commit, shelve or remove them, then rerun the '
|
|
'rebase'))
|
|
try:
|
|
_origrebase(ui, repo, rbsrt, **{'abort': True})
|
|
except Exception as e:
|
|
ui.warn(_("(couldn't abort rebase: %s)\n") % e.message)
|
|
rbsrt = rebaseruntime(repo, ui, inmemory, opts)
|
|
return _origrebase(ui, repo, rbsrt, **opts)
|
|
else:
|
|
raise
|
|
else:
|
|
return _origrebase(ui, repo, rbsrt, **opts)
|
|
|
|
def _origrebase(ui, repo, rbsrt, **opts):
|
|
with repo.wlock(), repo.lock():
|
|
# Validate input and define rebasing points
|
|
destf = opts.get('dest', None)
|
|
srcf = opts.get('source', None)
|
|
basef = opts.get('base', None)
|
|
revf = opts.get('rev', [])
|
|
# search default destination in this space
|
|
# used in the 'hg pull --rebase' case, see issue 5214.
|
|
destspace = opts.get('_destspace')
|
|
contf = opts.get('continue')
|
|
abortf = opts.get('abort')
|
|
if opts.get('interactive'):
|
|
try:
|
|
if extensions.find('histedit'):
|
|
enablehistedit = ''
|
|
except KeyError:
|
|
enablehistedit = " --config extensions.histedit="
|
|
help = "hg%s help -e histedit" % enablehistedit
|
|
msg = _("interactive history editing is supported by the "
|
|
"'histedit' extension (see \"%s\")") % help
|
|
raise error.Abort(msg)
|
|
|
|
if rbsrt.collapsemsg and not rbsrt.collapsef:
|
|
raise error.Abort(
|
|
_('message can only be specified with collapse'))
|
|
|
|
if contf or abortf:
|
|
if contf and abortf:
|
|
raise error.Abort(_('cannot use both abort and continue'))
|
|
if rbsrt.collapsef:
|
|
raise error.Abort(
|
|
_('cannot use collapse with continue or abort'))
|
|
if srcf or basef or destf:
|
|
raise error.Abort(
|
|
_('abort and continue do not allow specifying revisions'))
|
|
if abortf and opts.get('tool', False):
|
|
ui.warn(_('tool option will be ignored\n'))
|
|
if contf:
|
|
ms = mergemod.mergestate.read(repo)
|
|
mergeutil.checkunresolved(ms)
|
|
|
|
retcode = rbsrt._prepareabortorcontinue(abortf)
|
|
if retcode is not None:
|
|
return retcode
|
|
else:
|
|
destmap = _definedestmap(ui, repo, rbsrt, destf, srcf, basef, revf,
|
|
destspace=destspace)
|
|
retcode = rbsrt._preparenewrebase(destmap)
|
|
if retcode is not None:
|
|
return retcode
|
|
|
|
tr = None
|
|
dsguard = None
|
|
|
|
singletr = ui.configbool('rebase', 'singletransaction')
|
|
if singletr:
|
|
tr = repo.transaction('rebase')
|
|
|
|
# If `rebase.singletransaction` is enabled, wrap the entire operation in
|
|
# one transaction here. Otherwise, transactions are obtained when
|
|
# committing each node, which is slower but allows partial success.
|
|
with util.acceptintervention(tr):
|
|
# Same logic for the dirstate guard, except we don't create one when
|
|
# rebasing in-memory (it's not needed).
|
|
if singletr and not rbsrt.inmemory:
|
|
dsguard = dirstateguard.dirstateguard(repo, 'rebase')
|
|
with util.acceptintervention(dsguard):
|
|
rbsrt._performrebase(tr)
|
|
|
|
rbsrt._finishrebase()
|
|
|
|
def _shoulddisableimm(ui, repo, rebaseset, rebasingwcp):
|
|
"""returns if we should disable in-memory merge based on the rebaseset"""
|
|
# If rebasing the working copy parent, force in-memory merge to be off,
|
|
# unless ``experimental.inmemory.canrebaseworkingcopy`` is True.
|
|
#
|
|
# This is because the extra work of checking out the newly rebased commit
|
|
# might outweight the benefits of rebasing in-memory.
|
|
ui.log("rebase", "", rebase_rebasing_wcp=rebasingwcp)
|
|
allowwcprebase = ui.configbool("rebase",
|
|
"experimental.inmemory.canrebaseworkingcopy", False)
|
|
if rebasingwcp:
|
|
if allowwcprebase:
|
|
cmdutil.bailifchanged(repo)
|
|
else:
|
|
whynotimm = "wcp in rebaseset\n"
|
|
msg = "disabling IMM because: %s" % whynotimm
|
|
ui.log("rebase", msg, why_not_imm=whynotimm)
|
|
ui.debug(msg + '\n')
|
|
return True
|
|
|
|
# Check for paths in the rebaseset that are likely to later trigger
|
|
# conflicts or a mergedriver run (and thus cause the whole rebase to later
|
|
# be restarted).
|
|
#
|
|
# Note that this is crude, as it will include commits even if their
|
|
# artifacts don't need to be rebuilt (don't needs to be merged).
|
|
badpaths = ui.config("rebase", "experimental.inmemorydisallowedpaths")
|
|
if badpaths:
|
|
badpathsre = util.re.compile(badpaths)
|
|
ctxs = [repo[rev] for rev in rebaseset]
|
|
sets = [set(ctx.files()) for ctx in ctxs]
|
|
paths = set.union(*sets)
|
|
for path in paths:
|
|
if badpathsre.match(path):
|
|
whynotimm = "path matched inmemory_disallowed_paths: %s" % path
|
|
msg = "disabling IMM because: %s" % whynotimm
|
|
ui.log("rebase", msg, why_not_imm=whynotimm)
|
|
ui.debug(msg + '\n')
|
|
return True
|
|
|
|
return False # no change
|
|
|
|
def _definedestmap(ui, repo, rbsrt, destf=None, srcf=None, basef=None,
|
|
revf=None, destspace=None):
|
|
"""use revisions argument to define destmap {srcrev: destrev}"""
|
|
if revf is None:
|
|
revf = []
|
|
|
|
# destspace is here to work around issues with `hg pull --rebase` see
|
|
# issue5214 for details
|
|
if srcf and basef:
|
|
raise error.Abort(_('cannot specify both a source and a base'))
|
|
if revf and basef:
|
|
raise error.Abort(_('cannot specify both a revision and a base'))
|
|
if revf and srcf:
|
|
raise error.Abort(_('cannot specify both a revision and a source'))
|
|
|
|
cmdutil.checkunfinished(repo)
|
|
if not rbsrt.inmemory:
|
|
cmdutil.bailifchanged(repo)
|
|
|
|
if ui.configbool('commands', 'rebase.requiredest') and not destf:
|
|
raise error.Abort(_('you must specify a destination'),
|
|
hint=_('use: hg rebase -d REV'))
|
|
|
|
dest = None
|
|
|
|
if revf:
|
|
rebaseset = scmutil.revrange(repo, revf)
|
|
if not rebaseset:
|
|
ui.status(_('empty "rev" revision set - nothing to rebase\n'))
|
|
return None
|
|
elif srcf:
|
|
src = scmutil.revrange(repo, [srcf])
|
|
if not src:
|
|
ui.status(_('empty "source" revision set - nothing to rebase\n'))
|
|
return None
|
|
rebaseset = repo.revs('(%ld)::', src)
|
|
assert rebaseset
|
|
else:
|
|
base = scmutil.revrange(repo, [basef or '.'])
|
|
if not base:
|
|
ui.status(_('empty "base" revision set - '
|
|
"can't compute rebase set\n"))
|
|
return None
|
|
if destf:
|
|
# --base does not support multiple destinations
|
|
dest = scmutil.revsingle(repo, destf)
|
|
else:
|
|
dest = repo[_destrebase(repo, base, destspace=destspace)]
|
|
destf = str(dest)
|
|
|
|
roots = [] # selected children of branching points
|
|
bpbase = {} # {branchingpoint: [origbase]}
|
|
for b in base: # group bases by branching points
|
|
bp = repo.revs('ancestor(%d, %d)', b, dest).first()
|
|
bpbase[bp] = bpbase.get(bp, []) + [b]
|
|
if None in bpbase:
|
|
# emulate the old behavior, showing "nothing to rebase" (a better
|
|
# behavior may be abort with "cannot find branching point" error)
|
|
bpbase.clear()
|
|
for bp, bs in bpbase.iteritems(): # calculate roots
|
|
roots += list(repo.revs('children(%d) & ancestors(%ld)', bp, bs))
|
|
|
|
rebaseset = repo.revs('%ld::', roots)
|
|
|
|
if not rebaseset:
|
|
# transform to list because smartsets are not comparable to
|
|
# lists. This should be improved to honor laziness of
|
|
# smartset.
|
|
if list(base) == [dest.rev()]:
|
|
if basef:
|
|
ui.status(_('nothing to rebase - %s is both "base"'
|
|
' and destination\n') % dest)
|
|
else:
|
|
ui.status(_('nothing to rebase - working directory '
|
|
'parent is also destination\n'))
|
|
elif not repo.revs('%ld - ::%d', base, dest):
|
|
if basef:
|
|
ui.status(_('nothing to rebase - "base" %s is '
|
|
'already an ancestor of destination '
|
|
'%s\n') %
|
|
('+'.join(str(repo[r]) for r in base),
|
|
dest))
|
|
else:
|
|
ui.status(_('nothing to rebase - working '
|
|
'directory parent is already an '
|
|
'ancestor of destination %s\n') % dest)
|
|
else: # can it happen?
|
|
ui.status(_('nothing to rebase from %s to %s\n') %
|
|
('+'.join(str(repo[r]) for r in base), dest))
|
|
return None
|
|
|
|
# Possibly disable in-memory merge based on the rebaseset.
|
|
rbsrt.rebasingwcp = repo['.'].rev() in rebaseset
|
|
if rbsrt.inmemory and _shoulddisableimm(ui, repo, rebaseset,
|
|
rbsrt.rebasingwcp):
|
|
rbsrt.inmemory = False
|
|
|
|
# Check for local changes since we did not before.
|
|
cmdutil.bailifchanged(repo)
|
|
|
|
if not destf:
|
|
dest = repo[_destrebase(repo, rebaseset, destspace=destspace)]
|
|
destf = str(dest)
|
|
|
|
allsrc = revsetlang.formatspec('%ld', rebaseset)
|
|
alias = {'ALLSRC': allsrc}
|
|
|
|
if dest is None:
|
|
try:
|
|
# fast path: try to resolve dest without SRC alias
|
|
dest = scmutil.revsingle(repo, destf, localalias=alias)
|
|
except error.RepoLookupError:
|
|
# multi-dest path: resolve dest for each SRC separately
|
|
destmap = {}
|
|
for r in rebaseset:
|
|
alias['SRC'] = revsetlang.formatspec('%d', r)
|
|
# use repo.anyrevs instead of scmutil.revsingle because we
|
|
# don't want to abort if destset is empty.
|
|
destset = repo.anyrevs([destf], user=True, localalias=alias)
|
|
size = len(destset)
|
|
if size == 1:
|
|
destmap[r] = destset.first()
|
|
elif size == 0:
|
|
ui.note(_('skipping %s - empty destination\n') % repo[r])
|
|
else:
|
|
raise error.Abort(_('rebase destination for %s is not '
|
|
'unique') % repo[r])
|
|
|
|
if dest is not None:
|
|
# single-dest case: assign dest to each rev in rebaseset
|
|
destrev = dest.rev()
|
|
destmap = {r: destrev for r in rebaseset} # {srcrev: destrev}
|
|
|
|
if not destmap:
|
|
ui.status(_('nothing to rebase - empty destination\n'))
|
|
return None
|
|
|
|
return destmap
|
|
|
|
def externalparent(repo, state, destancestors):
|
|
"""Return the revision that should be used as the second parent
|
|
when the revisions in state is collapsed on top of destancestors.
|
|
Abort if there is more than one parent.
|
|
"""
|
|
parents = set()
|
|
source = min(state)
|
|
for rev in state:
|
|
if rev == source:
|
|
continue
|
|
for p in repo[rev].parents():
|
|
if (p.rev() not in state
|
|
and p.rev() not in destancestors):
|
|
parents.add(p.rev())
|
|
if not parents:
|
|
return nullrev
|
|
if len(parents) == 1:
|
|
return parents.pop()
|
|
raise error.Abort(_('unable to collapse on top of %s, there is more '
|
|
'than one external parent: %s') %
|
|
(max(destancestors),
|
|
', '.join(str(p) for p in sorted(parents))))
|
|
|
|
def concludememorynode(repo, rev, p1, p2, wctx=None,
|
|
commitmsg=None, editor=None, extrafn=None,
|
|
keepbranches=False, date=None):
|
|
'''Commit the memory changes with parents p1 and p2. Reuse commit info from
|
|
rev but also store useful information in extra.
|
|
Return node of committed revision.'''
|
|
ctx = repo[rev]
|
|
if commitmsg is None:
|
|
commitmsg = ctx.description()
|
|
keepbranch = keepbranches and repo[p1].branch() != ctx.branch()
|
|
extra = {'rebase_source': ctx.hex()}
|
|
if extrafn:
|
|
extrafn(ctx, extra)
|
|
|
|
destphase = max(ctx.phase(), phases.draft)
|
|
overrides = {('phases', 'new-commit'): destphase}
|
|
with repo.ui.configoverride(overrides, 'rebase'):
|
|
if keepbranch:
|
|
repo.ui.setconfig('ui', 'allowemptycommit', True)
|
|
# Replicates the empty check in ``repo.commit``.
|
|
if wctx.isempty() and not repo.ui.configbool('ui', 'allowemptycommit'):
|
|
return None
|
|
|
|
if date is None:
|
|
date = ctx.date()
|
|
|
|
# By convention, ``extra['branch']`` (set by extrafn) clobbers
|
|
# ``branch`` (used when passing ``--keepbranches``).
|
|
branch = repo[p1].branch()
|
|
if 'branch' in extra:
|
|
branch = extra['branch']
|
|
|
|
memctx = wctx.tomemctx(commitmsg, parents=(p1, p2), date=date,
|
|
extra=extra, user=ctx.user(), branch=branch, editor=editor)
|
|
commitres = repo.commitctx(memctx)
|
|
wctx.clean() # Might be reused
|
|
return commitres
|
|
|
|
def concludenode(repo, rev, p1, p2, commitmsg=None, editor=None, extrafn=None,
|
|
keepbranches=False, date=None):
|
|
'''Commit the wd changes with parents p1 and p2. Reuse commit info from rev
|
|
but also store useful information in extra.
|
|
Return node of committed revision.'''
|
|
dsguard = util.nullcontextmanager()
|
|
if not repo.ui.configbool('rebase', 'singletransaction'):
|
|
dsguard = dirstateguard.dirstateguard(repo, 'rebase')
|
|
with dsguard:
|
|
repo.setparents(repo[p1].node(), repo[p2].node())
|
|
ctx = repo[rev]
|
|
if commitmsg is None:
|
|
commitmsg = ctx.description()
|
|
keepbranch = keepbranches and repo[p1].branch() != ctx.branch()
|
|
extra = {'rebase_source': ctx.hex()}
|
|
if extrafn:
|
|
extrafn(ctx, extra)
|
|
|
|
destphase = max(ctx.phase(), phases.draft)
|
|
overrides = {('phases', 'new-commit'): destphase}
|
|
with repo.ui.configoverride(overrides, 'rebase'):
|
|
if keepbranch:
|
|
repo.ui.setconfig('ui', 'allowemptycommit', True)
|
|
# Commit might fail if unresolved files exist
|
|
if date is None:
|
|
date = ctx.date()
|
|
newnode = repo.commit(text=commitmsg, user=ctx.user(),
|
|
date=date, extra=extra, editor=editor)
|
|
|
|
repo.dirstate.setbranch(repo[newnode].branch())
|
|
return newnode
|
|
|
|
def rebasenode(repo, rev, p1, base, state, collapse, dest, wctx):
|
|
'Rebase a single revision rev on top of p1 using base as merge ancestor'
|
|
# Merge phase
|
|
# Update to destination and merge it with local
|
|
if wctx.isinmemory():
|
|
wctx.setbase(repo[p1])
|
|
else:
|
|
if repo['.'].rev() != p1:
|
|
repo.ui.debug(" update to %d:%s\n" % (p1, repo[p1]))
|
|
mergemod.update(repo, p1, False, True)
|
|
else:
|
|
repo.ui.debug(" already in destination\n")
|
|
# This is, alas, necessary to invalidate workingctx's manifest cache,
|
|
# as well as other data we litter on it in other places.
|
|
wctx = repo[None]
|
|
repo.dirstate.write(repo.currenttransaction())
|
|
repo.ui.debug(" merge against %d:%s\n" % (rev, repo[rev]))
|
|
if base is not None:
|
|
repo.ui.debug(" detach base %d:%s\n" % (base, repo[base]))
|
|
# When collapsing in-place, the parent is the common ancestor, we
|
|
# have to allow merging with it.
|
|
stats = mergemod.update(repo, rev, True, True, base, collapse,
|
|
labels=['dest', 'source'], wc=wctx)
|
|
if collapse:
|
|
copies.duplicatecopies(repo, wctx, rev, dest)
|
|
else:
|
|
# If we're not using --collapse, we need to
|
|
# duplicate copies between the revision we're
|
|
# rebasing and its first parent, but *not*
|
|
# duplicate any copies that have already been
|
|
# performed in the destination.
|
|
p1rev = repo[rev].p1().rev()
|
|
copies.duplicatecopies(repo, wctx, rev, p1rev, skiprev=dest)
|
|
return stats
|
|
|
|
def adjustdest(repo, rev, destmap, state, skipped):
|
|
"""adjust rebase destination given the current rebase state
|
|
|
|
rev is what is being rebased. Return a list of two revs, which are the
|
|
adjusted destinations for rev's p1 and p2, respectively. If a parent is
|
|
nullrev, return dest without adjustment for it.
|
|
|
|
For example, when doing rebasing B+E to F, C to G, rebase will first move B
|
|
to B1, and E's destination will be adjusted from F to B1.
|
|
|
|
B1 <- written during rebasing B
|
|
|
|
|
F <- original destination of B, E
|
|
|
|
|
| E <- rev, which is being rebased
|
|
| |
|
|
| D <- prev, one parent of rev being checked
|
|
| |
|
|
| x <- skipped, ex. no successor or successor in (::dest)
|
|
| |
|
|
| C <- rebased as C', different destination
|
|
| |
|
|
| B <- rebased as B1 C'
|
|
|/ |
|
|
A G <- destination of C, different
|
|
|
|
Another example about merge changeset, rebase -r C+G+H -d K, rebase will
|
|
first move C to C1, G to G1, and when it's checking H, the adjusted
|
|
destinations will be [C1, G1].
|
|
|
|
H C1 G1
|
|
/| | /
|
|
F G |/
|
|
K | | -> K
|
|
| C D |
|
|
| |/ |
|
|
| B | ...
|
|
|/ |/
|
|
A A
|
|
|
|
Besides, adjust dest according to existing rebase information. For example,
|
|
|
|
B C D B needs to be rebased on top of C, C needs to be rebased on top
|
|
\|/ of D. We will rebase C first.
|
|
A
|
|
|
|
C' After rebasing C, when considering B's destination, use C'
|
|
| instead of the original C.
|
|
B D
|
|
\ /
|
|
A
|
|
"""
|
|
# pick already rebased revs with same dest from state as interesting source
|
|
dest = destmap[rev]
|
|
source = [s for s, d in state.items()
|
|
if d > 0 and destmap[s] == dest and s not in skipped]
|
|
|
|
result = []
|
|
for prev in repo.changelog.parentrevs(rev):
|
|
adjusted = dest
|
|
if prev != nullrev:
|
|
candidate = repo.revs('max(%ld and (::%d))', source, prev).first()
|
|
if candidate is not None:
|
|
adjusted = state[candidate]
|
|
if adjusted == dest and dest in state:
|
|
adjusted = state[dest]
|
|
if adjusted == revtodo:
|
|
# sortsource should produce an order that makes this impossible
|
|
raise error.ProgrammingError(
|
|
'rev %d should be rebased already at this time' % dest)
|
|
result.append(adjusted)
|
|
return result
|
|
|
|
def _checkobsrebase(repo, ui, rebaseobsrevs, rebaseobsskipped):
|
|
"""
|
|
Abort if rebase will create divergence or rebase is noop because of markers
|
|
|
|
`rebaseobsrevs`: set of obsolete revision in source
|
|
`rebaseobsskipped`: set of revisions from source skipped because they have
|
|
successors in destination
|
|
"""
|
|
# Obsolete node with successors not in dest leads to divergence
|
|
divergenceok = ui.configbool('experimental',
|
|
'evolution.allowdivergence')
|
|
divergencebasecandidates = rebaseobsrevs - rebaseobsskipped
|
|
|
|
if divergencebasecandidates and not divergenceok:
|
|
divhashes = (str(repo[r])
|
|
for r in divergencebasecandidates)
|
|
msg = _("this rebase will cause "
|
|
"divergences from: %s")
|
|
h = _("to force the rebase please set "
|
|
"experimental.evolution.allowdivergence=True")
|
|
raise error.Abort(msg % (",".join(divhashes),), hint=h)
|
|
|
|
def successorrevs(unfi, rev):
|
|
"""yield revision numbers for successors of rev"""
|
|
assert unfi.filtername is None
|
|
nodemap = unfi.changelog.nodemap
|
|
for s in obsutil.allsuccessors(unfi.obsstore, [unfi[rev].node()]):
|
|
if s in nodemap:
|
|
yield nodemap[s]
|
|
|
|
def defineparents(repo, rev, destmap, state, skipped, obsskipped):
|
|
"""Return new parents and optionally a merge base for rev being rebased
|
|
|
|
The destination specified by "dest" cannot always be used directly because
|
|
previously rebase result could affect destination. For example,
|
|
|
|
D E rebase -r C+D+E -d B
|
|
|/ C will be rebased to C'
|
|
B C D's new destination will be C' instead of B
|
|
|/ E's new destination will be C' instead of B
|
|
A
|
|
|
|
The new parents of a merge is slightly more complicated. See the comment
|
|
block below.
|
|
"""
|
|
# use unfiltered changelog since successorrevs may return filtered nodes
|
|
assert repo.filtername is None
|
|
cl = repo.changelog
|
|
def isancestor(a, b):
|
|
# take revision numbers instead of nodes
|
|
if a == b:
|
|
return True
|
|
elif a > b:
|
|
return False
|
|
return cl.isancestor(cl.node(a), cl.node(b))
|
|
|
|
dest = destmap[rev]
|
|
oldps = repo.changelog.parentrevs(rev) # old parents
|
|
newps = [nullrev, nullrev] # new parents
|
|
dests = adjustdest(repo, rev, destmap, state, skipped)
|
|
bases = list(oldps) # merge base candidates, initially just old parents
|
|
|
|
if all(r == nullrev for r in oldps[1:]):
|
|
# For non-merge changeset, just move p to adjusted dest as requested.
|
|
newps[0] = dests[0]
|
|
else:
|
|
# For merge changeset, if we move p to dests[i] unconditionally, both
|
|
# parents may change and the end result looks like "the merge loses a
|
|
# parent", which is a surprise. This is a limit because "--dest" only
|
|
# accepts one dest per src.
|
|
#
|
|
# Therefore, only move p with reasonable conditions (in this order):
|
|
# 1. use dest, if dest is a descendent of (p or one of p's successors)
|
|
# 2. use p's rebased result, if p is rebased (state[p] > 0)
|
|
#
|
|
# Comparing with adjustdest, the logic here does some additional work:
|
|
# 1. decide which parents will not be moved towards dest
|
|
# 2. if the above decision is "no", should a parent still be moved
|
|
# because it was rebased?
|
|
#
|
|
# For example:
|
|
#
|
|
# C # "rebase -r C -d D" is an error since none of the parents
|
|
# /| # can be moved. "rebase -r B+C -d D" will move C's parent
|
|
# A B D # B (using rule "2."), since B will be rebased.
|
|
#
|
|
# The loop tries to be not rely on the fact that a Mercurial node has
|
|
# at most 2 parents.
|
|
for i, p in enumerate(oldps):
|
|
np = p # new parent
|
|
if any(isancestor(x, dests[i]) for x in successorrevs(repo, p)):
|
|
np = dests[i]
|
|
elif p in state and state[p] > 0:
|
|
np = state[p]
|
|
|
|
# "bases" only record "special" merge bases that cannot be
|
|
# calculated from changelog DAG (i.e. isancestor(p, np) is False).
|
|
# For example:
|
|
#
|
|
# B' # rebase -s B -d D, when B was rebased to B'. dest for C
|
|
# | C # is B', but merge base for C is B, instead of
|
|
# D | # changelog.ancestor(C, B') == A. If changelog DAG and
|
|
# | B # "state" edges are merged (so there will be an edge from
|
|
# |/ # B to B'), the merge base is still ancestor(C, B') in
|
|
# A # the merged graph.
|
|
#
|
|
# Also see https://bz.mercurial-scm.org/show_bug.cgi?id=1950#c8
|
|
# which uses "virtual null merge" to explain this situation.
|
|
if isancestor(p, np):
|
|
bases[i] = nullrev
|
|
|
|
# If one parent becomes an ancestor of the other, drop the ancestor
|
|
for j, x in enumerate(newps[:i]):
|
|
if x == nullrev:
|
|
continue
|
|
if isancestor(np, x): # CASE-1
|
|
np = nullrev
|
|
elif isancestor(x, np): # CASE-2
|
|
newps[j] = np
|
|
np = nullrev
|
|
# New parents forming an ancestor relationship does not
|
|
# mean the old parents have a similar relationship. Do not
|
|
# set bases[x] to nullrev.
|
|
bases[j], bases[i] = bases[i], bases[j]
|
|
|
|
newps[i] = np
|
|
|
|
# "rebasenode" updates to new p1, and the old p1 will be used as merge
|
|
# base. If only p2 changes, merging using unchanged p1 as merge base is
|
|
# suboptimal. Therefore swap parents to make the merge sane.
|
|
if newps[1] != nullrev and oldps[0] == newps[0]:
|
|
assert len(newps) == 2 and len(oldps) == 2
|
|
newps.reverse()
|
|
bases.reverse()
|
|
|
|
# No parent change might be an error because we fail to make rev a
|
|
# descendent of requested dest. This can happen, for example:
|
|
#
|
|
# C # rebase -r C -d D
|
|
# /| # None of A and B will be changed to D and rebase fails.
|
|
# A B D
|
|
if set(newps) == set(oldps) and dest not in newps:
|
|
raise error.Abort(_('cannot rebase %d:%s without '
|
|
'moving at least one of its parents')
|
|
% (rev, repo[rev]))
|
|
|
|
# Source should not be ancestor of dest. The check here guarantees it's
|
|
# impossible. With multi-dest, the initial check does not cover complex
|
|
# cases since we don't have abstractions to dry-run rebase cheaply.
|
|
if any(p != nullrev and isancestor(rev, p) for p in newps):
|
|
raise error.Abort(_('source is ancestor of destination'))
|
|
|
|
# "rebasenode" updates to new p1, use the corresponding merge base.
|
|
if bases[0] != nullrev:
|
|
base = bases[0]
|
|
else:
|
|
base = None
|
|
|
|
# Check if the merge will contain unwanted changes. That may happen if
|
|
# there are multiple special (non-changelog ancestor) merge bases, which
|
|
# cannot be handled well by the 3-way merge algorithm. For example:
|
|
#
|
|
# F
|
|
# /|
|
|
# D E # "rebase -r D+E+F -d Z", when rebasing F, if "D" was chosen
|
|
# | | # as merge base, the difference between D and F will include
|
|
# B C # C, so the rebased F will contain C surprisingly. If "E" was
|
|
# |/ # chosen, the rebased F will contain B.
|
|
# A Z
|
|
#
|
|
# But our merge base candidates (D and E in above case) could still be
|
|
# better than the default (ancestor(F, Z) == null). Therefore still
|
|
# pick one (so choose p1 above).
|
|
if sum(1 for b in bases if b != nullrev) > 1:
|
|
unwanted = [None, None] # unwanted[i]: unwanted revs if choose bases[i]
|
|
for i, base in enumerate(bases):
|
|
if base == nullrev:
|
|
continue
|
|
# Revisions in the side (not chosen as merge base) branch that
|
|
# might contain "surprising" contents
|
|
siderevs = list(repo.revs('((%ld-%d) %% (%d+%d))',
|
|
bases, base, base, dest))
|
|
|
|
# If those revisions are covered by rebaseset, the result is good.
|
|
# A merge in rebaseset would be considered to cover its ancestors.
|
|
if siderevs:
|
|
rebaseset = [r for r, d in state.items()
|
|
if d > 0 and r not in obsskipped]
|
|
merges = [r for r in rebaseset
|
|
if cl.parentrevs(r)[1] != nullrev]
|
|
unwanted[i] = list(repo.revs('%ld - (::%ld) - %ld',
|
|
siderevs, merges, rebaseset))
|
|
|
|
# Choose a merge base that has a minimal number of unwanted revs.
|
|
l, i = min((len(revs), i)
|
|
for i, revs in enumerate(unwanted) if revs is not None)
|
|
base = bases[i]
|
|
|
|
# newps[0] should match merge base if possible. Currently, if newps[i]
|
|
# is nullrev, the only case is newps[i] and newps[j] (j < i), one is
|
|
# the other's ancestor. In that case, it's fine to not swap newps here.
|
|
# (see CASE-1 and CASE-2 above)
|
|
if i != 0 and newps[i] != nullrev:
|
|
newps[0], newps[i] = newps[i], newps[0]
|
|
|
|
# The merge will include unwanted revisions. Abort now. Revisit this if
|
|
# we have a more advanced merge algorithm that handles multiple bases.
|
|
if l > 0:
|
|
unwanteddesc = _(' or ').join(
|
|
(', '.join('%d:%s' % (r, repo[r]) for r in revs)
|
|
for revs in unwanted if revs is not None))
|
|
raise error.Abort(
|
|
_('rebasing %d:%s will include unwanted changes from %s')
|
|
% (rev, repo[rev], unwanteddesc))
|
|
|
|
repo.ui.debug(" future parents are %d and %d\n" % tuple(newps))
|
|
|
|
return newps[0], newps[1], base
|
|
|
|
def isagitpatch(repo, patchname):
|
|
'Return true if the given patch is in git format'
|
|
mqpatch = os.path.join(repo.mq.path, patchname)
|
|
for line in patch.linereader(file(mqpatch, 'rb')): # noqa
|
|
if line.startswith('diff --git'):
|
|
return True
|
|
return False
|
|
|
|
def updatemq(repo, state, skipped, **opts):
|
|
'Update rebased mq patches - finalize and then import them'
|
|
mqrebase = {}
|
|
mq = repo.mq
|
|
original_series = mq.fullseries[:]
|
|
skippedpatches = set()
|
|
|
|
for p in mq.applied:
|
|
rev = repo[p.node].rev()
|
|
if rev in state:
|
|
repo.ui.debug('revision %d is an mq patch (%s), finalize it.\n' %
|
|
(rev, p.name))
|
|
mqrebase[rev] = (p.name, isagitpatch(repo, p.name))
|
|
else:
|
|
# Applied but not rebased, not sure this should happen
|
|
skippedpatches.add(p.name)
|
|
|
|
if mqrebase:
|
|
mq.finish(repo, mqrebase.keys())
|
|
|
|
# We must start import from the newest revision
|
|
for rev in sorted(mqrebase, reverse=True):
|
|
if rev not in skipped:
|
|
name, isgit = mqrebase[rev]
|
|
repo.ui.note(_('updating mq patch %s to %s:%s\n') %
|
|
(name, state[rev], repo[state[rev]]))
|
|
mq.qimport(repo, (), patchname=name, git=isgit,
|
|
rev=[str(state[rev])])
|
|
else:
|
|
# Rebased and skipped
|
|
skippedpatches.add(mqrebase[rev][0])
|
|
|
|
# Patches were either applied and rebased and imported in
|
|
# order, applied and removed or unapplied. Discard the removed
|
|
# ones while preserving the original series order and guards.
|
|
newseries = [s for s in original_series
|
|
if mq.guard_re.split(s, 1)[0] not in skippedpatches]
|
|
mq.fullseries[:] = newseries
|
|
mq.seriesdirty = True
|
|
mq.savedirty()
|
|
|
|
def storecollapsemsg(repo, collapsemsg):
|
|
'Store the collapse message to allow recovery'
|
|
collapsemsg = collapsemsg or ''
|
|
f = repo.vfs("last-message.txt", "w")
|
|
f.write("%s\n" % collapsemsg)
|
|
f.close()
|
|
|
|
def clearcollapsemsg(repo):
|
|
'Remove collapse message file'
|
|
repo.vfs.unlinkpath("last-message.txt", ignoremissing=True)
|
|
|
|
def restorecollapsemsg(repo, isabort):
|
|
'Restore previously stored collapse message'
|
|
try:
|
|
f = repo.vfs("last-message.txt")
|
|
collapsemsg = f.readline().strip()
|
|
f.close()
|
|
except IOError as err:
|
|
if err.errno != errno.ENOENT:
|
|
raise
|
|
if isabort:
|
|
# Oh well, just abort like normal
|
|
collapsemsg = ''
|
|
else:
|
|
raise error.Abort(_('missing .hg/last-message.txt for rebase'))
|
|
return collapsemsg
|
|
|
|
def clearstatus(repo):
|
|
'Remove the status files'
|
|
# Make sure the active transaction won't write the state file
|
|
tr = repo.currenttransaction()
|
|
if tr:
|
|
tr.removefilegenerator('rebasestate')
|
|
repo.vfs.unlinkpath("rebasestate", ignoremissing=True)
|
|
|
|
def needupdate(repo, state):
|
|
'''check whether we should `update --clean` away from a merge, or if
|
|
somehow the working dir got forcibly updated, e.g. by older hg'''
|
|
parents = [p.rev() for p in repo[None].parents()]
|
|
|
|
# Are we in a merge state at all?
|
|
if len(parents) < 2:
|
|
return False
|
|
|
|
# We should be standing on the first as-of-yet unrebased commit.
|
|
firstunrebased = min([old for old, new in state.iteritems()
|
|
if new == nullrev])
|
|
if firstunrebased in parents:
|
|
return True
|
|
|
|
return False
|
|
|
|
def abort(repo, originalwd, destmap, state, activebookmark=None):
|
|
'''Restore the repository to its original state. Additional args:
|
|
|
|
activebookmark: the name of the bookmark that should be active after the
|
|
restore'''
|
|
|
|
try:
|
|
# If the first commits in the rebased set get skipped during the rebase,
|
|
# their values within the state mapping will be the dest rev id. The
|
|
# rebased list must must not contain the dest rev (issue4896)
|
|
rebased = [s for r, s in state.items()
|
|
if s >= 0 and s != r and s != destmap[r]]
|
|
immutable = [d for d in rebased if not repo[d].mutable()]
|
|
cleanup = True
|
|
if immutable:
|
|
repo.ui.warn(_("warning: can't clean up public changesets %s\n")
|
|
% ', '.join(str(repo[r]) for r in immutable),
|
|
hint=_("see 'hg help phases' for details"))
|
|
cleanup = False
|
|
|
|
descendants = set()
|
|
if rebased:
|
|
descendants = set(repo.changelog.descendants(rebased))
|
|
if descendants - set(rebased):
|
|
repo.ui.warn(_("warning: new changesets detected on destination "
|
|
"branch, can't strip\n"))
|
|
cleanup = False
|
|
|
|
if cleanup:
|
|
shouldupdate = False
|
|
if rebased:
|
|
strippoints = [
|
|
c.node() for c in repo.set('roots(%ld)', rebased)]
|
|
|
|
updateifonnodes = set(rebased)
|
|
updateifonnodes.update(destmap.values())
|
|
updateifonnodes.add(originalwd)
|
|
shouldupdate = repo['.'].rev() in updateifonnodes
|
|
|
|
# Update away from the rebase if necessary
|
|
if shouldupdate or needupdate(repo, state):
|
|
mergemod.update(repo, originalwd, False, True)
|
|
|
|
# Strip from the first rebased revision
|
|
if rebased:
|
|
# no backup of rebased cset versions needed
|
|
repair.strip(repo.ui, repo, strippoints)
|
|
|
|
if activebookmark and activebookmark in repo._bookmarks:
|
|
bookmarks.activate(repo, activebookmark)
|
|
|
|
finally:
|
|
clearstatus(repo)
|
|
clearcollapsemsg(repo)
|
|
repo.ui.warn(_('rebase aborted\n'))
|
|
return 0
|
|
|
|
def sortsource(destmap):
|
|
"""yield source revisions in an order that we only rebase things once
|
|
|
|
If source and destination overlaps, we should filter out revisions
|
|
depending on other revisions which hasn't been rebased yet.
|
|
|
|
Yield a sorted list of revisions each time.
|
|
|
|
For example, when rebasing A to B, B to C. This function yields [B], then
|
|
[A], indicating B needs to be rebased first.
|
|
|
|
Raise if there is a cycle so the rebase is impossible.
|
|
"""
|
|
srcset = set(destmap)
|
|
while srcset:
|
|
srclist = sorted(srcset)
|
|
result = []
|
|
for r in srclist:
|
|
if destmap[r] not in srcset:
|
|
result.append(r)
|
|
if not result:
|
|
raise error.Abort(_('source and destination form a cycle'))
|
|
srcset -= set(result)
|
|
yield result
|
|
|
|
def buildstate(repo, destmap, collapse):
|
|
'''Define which revisions are going to be rebased and where
|
|
|
|
repo: repo
|
|
destmap: {srcrev: destrev}
|
|
'''
|
|
rebaseset = destmap.keys()
|
|
originalwd = repo['.'].rev()
|
|
|
|
# This check isn't strictly necessary, since mq detects commits over an
|
|
# applied patch. But it prevents messing up the working directory when
|
|
# a partially completed rebase is blocked by mq.
|
|
if 'qtip' in repo.tags():
|
|
mqapplied = set(repo[s.node].rev() for s in repo.mq.applied)
|
|
if set(destmap.values()) & mqapplied:
|
|
raise error.Abort(_('cannot rebase onto an applied mq patch'))
|
|
|
|
# Get "cycle" error early by exhausting the generator.
|
|
sortedsrc = list(sortsource(destmap)) # a list of sorted revs
|
|
if not sortedsrc:
|
|
raise error.Abort(_('no matching revisions'))
|
|
|
|
# Only check the first batch of revisions to rebase not depending on other
|
|
# rebaseset. This means "source is ancestor of destination" for the second
|
|
# (and following) batches of revisions are not checked here. We rely on
|
|
# "defineparents" to do that check.
|
|
roots = list(repo.set('roots(%ld)', sortedsrc[0]))
|
|
if not roots:
|
|
raise error.Abort(_('no matching revisions'))
|
|
roots.sort()
|
|
state = dict.fromkeys(rebaseset, revtodo)
|
|
emptyrebase = (len(sortedsrc) == 1)
|
|
for root in roots:
|
|
dest = repo[destmap[root.rev()]]
|
|
commonbase = root.ancestor(dest)
|
|
if commonbase == root:
|
|
raise error.Abort(_('source is ancestor of destination'))
|
|
if commonbase == dest:
|
|
wctx = repo[None]
|
|
if dest == wctx.p1():
|
|
# when rebasing to '.', it will use the current wd branch name
|
|
samebranch = root.branch() == wctx.branch()
|
|
else:
|
|
samebranch = root.branch() == dest.branch()
|
|
if not collapse and samebranch and dest in root.parents():
|
|
# mark the revision as done by setting its new revision
|
|
# equal to its old (current) revisions
|
|
state[root.rev()] = root.rev()
|
|
repo.ui.debug('source is a child of destination\n')
|
|
continue
|
|
|
|
emptyrebase = False
|
|
repo.ui.debug('rebase onto %s starting from %s\n' % (dest, root))
|
|
if emptyrebase:
|
|
return None
|
|
for rev in sorted(state):
|
|
parents = [p for p in repo.changelog.parentrevs(rev) if p != nullrev]
|
|
# if all parents of this revision are done, then so is this revision
|
|
if parents and all((state.get(p) == p for p in parents)):
|
|
state[rev] = rev
|
|
return originalwd, destmap, state
|
|
|
|
def clearrebased(ui, repo, destmap, state, skipped, collapsedas=None,
|
|
keepf=False, fm=None):
|
|
"""dispose of rebased revision at the end of the rebase
|
|
|
|
If `collapsedas` is not None, the rebase was a collapse whose result if the
|
|
`collapsedas` node.
|
|
|
|
If `keepf` is not True, the rebase has --keep set and no nodes should be
|
|
removed (but bookmarks still need to be moved).
|
|
"""
|
|
tonode = repo.changelog.node
|
|
replacements = {}
|
|
moves = {}
|
|
for rev, newrev in sorted(state.items()):
|
|
if newrev >= 0 and newrev != rev:
|
|
oldnode = tonode(rev)
|
|
newnode = collapsedas or tonode(newrev)
|
|
moves[oldnode] = newnode
|
|
if not keepf:
|
|
if rev in skipped:
|
|
succs = ()
|
|
else:
|
|
succs = (newnode,)
|
|
replacements[oldnode] = succs
|
|
scmutil.cleanupnodes(repo, replacements, 'rebase', moves)
|
|
if fm:
|
|
hf = fm.hexfunc
|
|
fl = fm.formatlist
|
|
fd = fm.formatdict
|
|
nodechanges = fd({hf(oldn): fl([hf(n) for n in newn], name='node')
|
|
for oldn, newn in replacements.iteritems()},
|
|
key="oldnode", value="newnodes")
|
|
fm.data(nodechanges=nodechanges)
|
|
|
|
def pullrebase(orig, ui, repo, *args, **opts):
|
|
'Call rebase after pull if the latter has been invoked with --rebase'
|
|
ret = None
|
|
if opts.get(r'rebase'):
|
|
if ui.configbool('commands', 'rebase.requiredest'):
|
|
msg = _('rebase destination required by configuration')
|
|
hint = _('use hg pull followed by hg rebase -d DEST')
|
|
raise error.Abort(msg, hint=hint)
|
|
|
|
with repo.wlock(), repo.lock():
|
|
if opts.get(r'update'):
|
|
del opts[r'update']
|
|
ui.debug('--update and --rebase are not compatible, ignoring '
|
|
'the update flag\n')
|
|
|
|
cmdutil.checkunfinished(repo)
|
|
cmdutil.bailifchanged(repo, hint=_('cannot pull with rebase: '
|
|
'please commit or shelve your changes first'))
|
|
|
|
revsprepull = len(repo)
|
|
origpostincoming = commands.postincoming
|
|
def _dummy(*args, **kwargs):
|
|
pass
|
|
commands.postincoming = _dummy
|
|
try:
|
|
ret = orig(ui, repo, *args, **opts)
|
|
finally:
|
|
commands.postincoming = origpostincoming
|
|
revspostpull = len(repo)
|
|
if revspostpull > revsprepull:
|
|
# --rev option from pull conflict with rebase own --rev
|
|
# dropping it
|
|
if r'rev' in opts:
|
|
del opts[r'rev']
|
|
# positional argument from pull conflicts with rebase's own
|
|
# --source.
|
|
if r'source' in opts:
|
|
del opts[r'source']
|
|
# revsprepull is the len of the repo, not revnum of tip.
|
|
destspace = list(repo.changelog.revs(start=revsprepull))
|
|
opts[r'_destspace'] = destspace
|
|
try:
|
|
rebase(ui, repo, **opts)
|
|
except error.NoMergeDestAbort:
|
|
# we can maybe update instead
|
|
rev, _a, _b = destutil.destupdate(repo)
|
|
if rev == repo['.'].rev():
|
|
ui.status(_('nothing to rebase\n'))
|
|
else:
|
|
ui.status(_('nothing to rebase - updating instead\n'))
|
|
# not passing argument to get the bare update behavior
|
|
# with warning and trumpets
|
|
commands.update(ui, repo)
|
|
else:
|
|
if opts.get(r'tool'):
|
|
raise error.Abort(_('--tool can only be used with --rebase'))
|
|
ret = orig(ui, repo, *args, **opts)
|
|
|
|
return ret
|
|
|
|
def _filterobsoleterevs(repo, revs):
|
|
"""returns a set of the obsolete revisions in revs"""
|
|
return set(r for r in revs if repo[r].obsolete())
|
|
|
|
def _computeobsoletenotrebased(repo, rebaseobsrevs, destmap):
|
|
"""Return (obsoletenotrebased, obsoletewithoutsuccessorindestination).
|
|
|
|
`obsoletenotrebased` is a mapping mapping obsolete => successor for all
|
|
obsolete nodes to be rebased given in `rebaseobsrevs`.
|
|
|
|
`obsoletewithoutsuccessorindestination` is a set with obsolete revisions
|
|
without a successor in destination.
|
|
"""
|
|
obsoletenotrebased = {}
|
|
obsoletewithoutsuccessorindestination = set([])
|
|
|
|
assert repo.filtername is None
|
|
cl = repo.changelog
|
|
nodemap = cl.nodemap
|
|
for srcrev in rebaseobsrevs:
|
|
srcnode = cl.node(srcrev)
|
|
destnode = cl.node(destmap[srcrev])
|
|
# XXX: more advanced APIs are required to handle split correctly
|
|
# obsutil.allsuccessors can include nodes that aren't present
|
|
# in the repo and changelog nodemap. This is normal if CommitCloud
|
|
# extension is enabled.
|
|
successors = list(obsutil.allsuccessors(repo.obsstore, [srcnode]))
|
|
if len(successors) == 1:
|
|
# obsutil.allsuccessors includes node itself. When the list only
|
|
# contains one element, it means there are no successors.
|
|
obsoletenotrebased[srcrev] = None
|
|
else:
|
|
for succnode in successors:
|
|
if succnode == srcnode or succnode not in nodemap:
|
|
continue
|
|
if cl.isancestor(succnode, destnode):
|
|
obsoletenotrebased[srcrev] = nodemap[succnode]
|
|
break
|
|
else:
|
|
# If 'srcrev' has a successor in rebase set but none in
|
|
# destination (which would be catched above), we shall skip it
|
|
# and its descendants to avoid divergence.
|
|
# obsutil.allsuccessors can include nodes that aren't present
|
|
# in changelog nodemap.
|
|
if any(nodemap[s] in destmap
|
|
for s in successors if s != srcnode and s in nodemap):
|
|
obsoletewithoutsuccessorindestination.add(srcrev)
|
|
|
|
return obsoletenotrebased, obsoletewithoutsuccessorindestination
|
|
|
|
def summaryhook(ui, repo):
|
|
if not repo.vfs.exists('rebasestate'):
|
|
return
|
|
try:
|
|
rbsrt = rebaseruntime(repo, ui, {})
|
|
rbsrt.restorestatus()
|
|
state = rbsrt.state
|
|
except error.RepoLookupError:
|
|
# i18n: column positioning for "hg summary"
|
|
msg = _('rebase: (use "hg rebase --abort" to clear broken state)\n')
|
|
ui.write(msg)
|
|
return
|
|
numrebased = len([i for i in state.itervalues() if i >= 0])
|
|
# i18n: column positioning for "hg summary"
|
|
ui.write(_('rebase: %s, %s (rebase --continue)\n') %
|
|
(ui.label(_('%d rebased'), 'rebase.rebased') % numrebased,
|
|
ui.label(_('%d remaining'), 'rebase.remaining') %
|
|
(len(state) - numrebased)))
|
|
|
|
def uisetup(ui):
|
|
#Replace pull with a decorator to provide --rebase option
|
|
entry = extensions.wrapcommand(commands.table, 'pull', pullrebase)
|
|
entry[1].append(('', 'rebase', None,
|
|
_("rebase working directory to branch head")))
|
|
entry[1].append(('t', 'tool', '',
|
|
_("specify merge tool for rebase")))
|
|
cmdutil.summaryhooks.add('rebase', summaryhook)
|
|
cmdutil.unfinishedstates.append(
|
|
['rebasestate', False, False, _('rebase in progress'),
|
|
_("use 'hg rebase --continue' or 'hg rebase --abort'")])
|
|
cmdutil.afterresolvedstates.append(
|
|
['rebasestate', _('hg rebase --continue')])
|