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# 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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hex,
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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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patch,
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phases,
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registrar,
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repair,
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repoview,
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revset,
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scmutil,
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smartset,
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util,
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)
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release = lock.release
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templateopts = cmdutil.templateopts
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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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nullmerge = -2
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revignored = -3
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# successor in rebase destination
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revprecursor = -4
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# plain prune (no successor)
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revpruned = -5
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revskipped = (revignored, revprecursor, revpruned)
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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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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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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, opts=None):
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if opts is None:
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opts = {}
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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.currentbookmarks = None
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self.dest = None
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self.skipped = set()
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self.destancestors = 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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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.unfiltered()
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f.write(repo[self.originalwd].hex() + '\n')
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f.write(repo[self.dest].hex() + '\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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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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elif v == revtodo:
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# To maintain format compatibility, we have to use nullid.
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# Please do remove this special case when upgrading the format.
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newrev = hex(nullid)
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else:
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newrev = v
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f.write("%s:%s\n" % (oldrev, newrev))
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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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repo = self.repo
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keepbranches = None
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dest = 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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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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dest = 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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oldrev, newrev = l.split(':')
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if newrev in (str(nullmerge), str(revignored),
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str(revprecursor), str(revpruned)):
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state[repo[oldrev].rev()] = int(newrev)
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elif newrev == nullid:
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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 = {dest}
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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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_setrebasesetvisibility(repo, set(state.keys()) | {originalwd})
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self.originalwd = originalwd
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self.dest = dest
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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, rebaserevs, obsoleterevs, dest):
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"""Compute structures necessary for skipping obsolete revisions
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rebaserevs: iterable of all revisions that are to be rebased
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obsoleterevs: iterable of all obsolete revisions in rebaseset
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dest: a destination revision for the rebase operation
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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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default=True):
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return
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rebaseset = set(rebaserevs)
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obsoleteset = set(obsoleterevs)
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self.obsoletenotrebased = _computeobsoletenotrebased(self.repo,
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obsoleteset, dest)
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skippedset = set(self.obsoletenotrebased)
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_checkobsrebase(self.repo, self.ui, obsoleteset, rebaseset, skippedset)
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def _prepareabortorcontinue(self, isabort):
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try:
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self.restorestatus()
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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.dest,
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self.state, activebookmark=self.activebookmark)
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obsrevs = (r for r, st in self.state.items() if st == revprecursor)
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self._handleskippingobsolete(self.state.keys(), obsrevs, self.dest)
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def _preparenewrebase(self, dest, rebaseset):
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if dest is None:
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return _nothingtorebase()
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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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obsrevs = _filterobsoleterevs(self.repo, set(rebaseset))
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self._handleskippingobsolete(rebaseset, obsrevs, dest)
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result = buildstate(self.repo, dest, rebaseset, self.collapsef,
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self.obsoletenotrebased)
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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.dest, self.state) = result
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if self.collapsef:
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self.destancestors = self.repo.changelog.ancestors(
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[self.dest],
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inclusive=True)
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self.external = externalparent(self.repo, self.state,
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self.destancestors)
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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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def _performrebase(self, tr):
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repo, ui, opts = self.repo, self.ui, self.opts
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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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# Rebase
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if not self.destancestors:
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self.destancestors = repo.changelog.ancestors([self.dest],
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inclusive=True)
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# Keep track of the current bookmarks in order to reset them later
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self.currentbookmarks = repo._bookmarks.copy()
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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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sortedrevs = repo.revs('sort(%ld, -topo)', self.state)
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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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for rev in sortedrevs:
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ctx = repo[rev]
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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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names = repo.nodetags(ctx.node()) + repo.nodebookmarks(ctx.node())
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if names:
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desc += ' (%s)' % ' '.join(names)
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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 self.state[rev] == revtodo:
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pos += 1
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ui.status(_('rebasing %s\n') % desc)
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ui.progress(_("rebasing"), pos, ("%d:%s" % (rev, ctx)),
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_('changesets'), total)
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p1, p2, base = defineparents(repo, rev, self.dest,
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self.state,
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self.destancestors,
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self.obsoletenotrebased)
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self.storestatus(tr=tr)
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storecollapsemsg(repo, self.collapsemsg)
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if len(repo[None].parents()) == 2:
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repo.ui.debug('resuming interrupted rebase\n')
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else:
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try:
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ui.setconfig('ui', 'forcemerge', opts.get('tool', ''),
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'rebase')
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stats = rebasenode(repo, rev, p1, base, self.state,
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self.collapsef, self.dest)
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if stats and stats[3] > 0:
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raise error.InterventionRequired(
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_('unresolved conflicts (see hg '
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'resolve, then hg rebase --continue)'))
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finally:
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ui.setconfig('ui', 'forcemerge', '', 'rebase')
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if not self.collapsef:
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merging = p2 != nullrev
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editform = cmdutil.mergeeditform(merging, 'rebase')
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editor = cmdutil.getcommiteditor(editform=editform, **opts)
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newnode = concludenode(repo, rev, p1, p2,
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extrafn=_makeextrafn(self.extrafns),
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editor=editor,
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keepbranches=self.keepbranchesf,
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date=self.date)
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if newnode is None:
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|
|
# 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
|
|
|
with repo.dirstate.parentchange():
|
|
|
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)
|
|
|
elif self.state[rev] == nullmerge:
|
|
|
ui.debug('ignoring null merge rebase of %s\n' % rev)
|
|
|
elif self.state[rev] == revignored:
|
|
|
ui.status(_('not rebasing ignored %s\n') % desc)
|
|
|
elif self.state[rev] == revprecursor:
|
|
|
destctx = repo[self.obsoletenotrebased[rev]]
|
|
|
descdest = '%d:%s "%s"' % (destctx.rev(), destctx,
|
|
|
destctx.description().split('\n', 1)[0])
|
|
|
msg = _('note: not rebasing %s, already in destination as %s\n')
|
|
|
ui.status(msg % (desc, descdest))
|
|
|
elif self.state[rev] == revpruned:
|
|
|
msg = _('note: not rebasing %s, it has no successor\n')
|
|
|
ui.status(msg % desc)
|
|
|
else:
|
|
|
ui.status(_('already rebased %s as %s\n') %
|
|
|
(desc, repo[self.state[rev]]))
|
|
|
|
|
|
ui.progress(_('rebasing'), None)
|
|
|
ui.note(_('rebase merging completed\n'))
|
|
|
|
|
|
def _finishrebase(self):
|
|
|
repo, ui, opts = self.repo, self.ui, self.opts
|
|
|
if self.collapsef and not self.keepopen:
|
|
|
p1, p2, _base = defineparents(repo, min(self.state),
|
|
|
self.dest, self.state,
|
|
|
self.destancestors,
|
|
|
self.obsoletenotrebased)
|
|
|
editopt = opts.get('edit')
|
|
|
editform = 'rebase.collapse'
|
|
|
if self.collapsemsg:
|
|
|
commitmsg = self.collapsemsg
|
|
|
else:
|
|
|
commitmsg = 'Collapsed revision'
|
|
|
for rebased in self.state:
|
|
|
if rebased not in self.skipped and\
|
|
|
self.state[rebased] > nullmerge:
|
|
|
commitmsg += '\n* %s' % repo[rebased].description()
|
|
|
editopt = True
|
|
|
editor = cmdutil.getcommiteditor(edit=editopt, editform=editform)
|
|
|
revtoreuse = max(self.state)
|
|
|
dsguard = dirstateguard.dirstateguard(repo, 'rebase')
|
|
|
try:
|
|
|
newnode = concludenode(repo, revtoreuse, p1, self.external,
|
|
|
commitmsg=commitmsg,
|
|
|
extrafn=_makeextrafn(self.extrafns),
|
|
|
editor=editor,
|
|
|
keepbranches=self.keepbranchesf,
|
|
|
date=self.date)
|
|
|
dsguard.close()
|
|
|
release(dsguard)
|
|
|
except error.InterventionRequired:
|
|
|
dsguard.close()
|
|
|
release(dsguard)
|
|
|
raise
|
|
|
except Exception:
|
|
|
release(dsguard)
|
|
|
raise
|
|
|
|
|
|
if newnode is None:
|
|
|
newrev = self.dest
|
|
|
else:
|
|
|
newrev = repo[newnode].rev()
|
|
|
for oldrev in self.state.iterkeys():
|
|
|
if self.state[oldrev] > nullmerge:
|
|
|
self.state[oldrev] = newrev
|
|
|
|
|
|
if 'qtip' in repo.tags():
|
|
|
updatemq(repo, self.state, self.skipped, **opts)
|
|
|
|
|
|
if self.currentbookmarks:
|
|
|
# Nodeids are needed to reset bookmarks
|
|
|
nstate = {}
|
|
|
for k, v in self.state.iteritems():
|
|
|
if v > nullmerge and v != k:
|
|
|
nstate[repo[k].node()] = repo[v].node()
|
|
|
elif v == revprecursor:
|
|
|
succ = self.obsoletenotrebased[k]
|
|
|
nstate[repo[k].node()] = repo[succ].node()
|
|
|
# XXX this is the same as dest.node() for the non-continue path --
|
|
|
# this should probably be cleaned up
|
|
|
destnode = repo[self.dest].node()
|
|
|
|
|
|
# restore original working directory
|
|
|
# (we do this before stripping)
|
|
|
newwd = self.state.get(self.originalwd, self.originalwd)
|
|
|
if newwd == revprecursor:
|
|
|
newwd = self.obsoletenotrebased[self.originalwd]
|
|
|
elif 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"))
|
|
|
hg.updaterepo(repo, newwd, False)
|
|
|
|
|
|
if self.currentbookmarks:
|
|
|
with repo.transaction('bookmark') as tr:
|
|
|
updatebookmarks(repo, destnode, nstate,
|
|
|
self.currentbookmarks, tr)
|
|
|
if self.activebookmark not in repo._bookmarks:
|
|
|
# active bookmark was divergent one and has been deleted
|
|
|
self.activebookmark = None
|
|
|
|
|
|
if not self.keepf:
|
|
|
collapsedas = None
|
|
|
if self.collapsef:
|
|
|
collapsedas = newnode
|
|
|
clearrebased(ui, repo, self.state, self.skipped, collapsedas)
|
|
|
|
|
|
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)
|
|
|
|
|
|
if (self.activebookmark 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'))] +
|
|
|
templateopts,
|
|
|
_('[-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.
|
|
|
|
|
|
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
|
|
|
|
|
|
Configuration Options:
|
|
|
|
|
|
You can make rebase require a destination if you set the following config
|
|
|
option::
|
|
|
|
|
|
[commands]
|
|
|
rebase.requiredest = True
|
|
|
|
|
|
Return Values:
|
|
|
|
|
|
Returns 0 on success, 1 if nothing to rebase or there are
|
|
|
unresolved conflicts.
|
|
|
|
|
|
"""
|
|
|
rbsrt = rebaseruntime(repo, ui, opts)
|
|
|
|
|
|
lock = wlock = None
|
|
|
try:
|
|
|
wlock = repo.wlock()
|
|
|
lock = 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:
|
|
|
dest, rebaseset = _definesets(ui, repo, destf, srcf, basef, revf,
|
|
|
destspace=destspace)
|
|
|
retcode = rbsrt._preparenewrebase(dest, rebaseset)
|
|
|
if retcode is not None:
|
|
|
return retcode
|
|
|
|
|
|
with repo.transaction('rebase') as tr:
|
|
|
dsguard = dirstateguard.dirstateguard(repo, 'rebase')
|
|
|
try:
|
|
|
rbsrt._performrebase(tr)
|
|
|
dsguard.close()
|
|
|
release(dsguard)
|
|
|
except error.InterventionRequired:
|
|
|
dsguard.close()
|
|
|
release(dsguard)
|
|
|
tr.close()
|
|
|
raise
|
|
|
except Exception:
|
|
|
release(dsguard)
|
|
|
raise
|
|
|
rbsrt._finishrebase()
|
|
|
finally:
|
|
|
release(lock, wlock)
|
|
|
|
|
|
def _definesets(ui, repo, destf=None, srcf=None, basef=None, revf=None,
|
|
|
destspace=None):
|
|
|
"""use revisions argument to define destination and rebase set
|
|
|
"""
|
|
|
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)
|
|
|
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'))
|
|
|
|
|
|
if destf:
|
|
|
dest = scmutil.revsingle(repo, destf)
|
|
|
|
|
|
if revf:
|
|
|
rebaseset = scmutil.revrange(repo, revf)
|
|
|
if not rebaseset:
|
|
|
ui.status(_('empty "rev" revision set - nothing to rebase\n'))
|
|
|
return None, None
|
|
|
elif srcf:
|
|
|
src = scmutil.revrange(repo, [srcf])
|
|
|
if not src:
|
|
|
ui.status(_('empty "source" revision set - nothing to rebase\n'))
|
|
|
return None, 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, None
|
|
|
if not destf:
|
|
|
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, None
|
|
|
|
|
|
if not destf:
|
|
|
dest = repo[_destrebase(repo, rebaseset, destspace=destspace)]
|
|
|
destf = str(dest)
|
|
|
|
|
|
return dest, rebaseset
|
|
|
|
|
|
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 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.'''
|
|
|
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):
|
|
|
'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 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")
|
|
|
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'])
|
|
|
if collapse:
|
|
|
copies.duplicatecopies(repo, 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, rev, p1rev, skiprev=dest)
|
|
|
return stats
|
|
|
|
|
|
def nearestrebased(repo, rev, state):
|
|
|
"""return the nearest ancestors of rev in the rebase result"""
|
|
|
rebased = [r for r in state if state[r] > nullmerge]
|
|
|
candidates = repo.revs('max(%ld and (::%d))', rebased, rev)
|
|
|
if candidates:
|
|
|
return state[candidates.first()]
|
|
|
else:
|
|
|
return None
|
|
|
|
|
|
def _checkobsrebase(repo, ui, rebaseobsrevs, rebasesetrevs, rebaseobsskipped):
|
|
|
"""
|
|
|
Abort if rebase will create divergence or rebase is noop because of markers
|
|
|
|
|
|
`rebaseobsrevs`: set of obsolete revision in source
|
|
|
`rebasesetrevs`: set of revisions to be rebased from 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',
|
|
|
'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.allowdivergence=True")
|
|
|
raise error.Abort(msg % (",".join(divhashes),), hint=h)
|
|
|
|
|
|
def defineparents(repo, rev, dest, state, destancestors,
|
|
|
obsoletenotrebased):
|
|
|
'Return the new parent relationship of the revision that will be rebased'
|
|
|
parents = repo[rev].parents()
|
|
|
p1 = p2 = nullrev
|
|
|
rp1 = None
|
|
|
|
|
|
p1n = parents[0].rev()
|
|
|
if p1n in destancestors:
|
|
|
p1 = dest
|
|
|
elif p1n in state:
|
|
|
if state[p1n] == nullmerge:
|
|
|
p1 = dest
|
|
|
elif state[p1n] in revskipped:
|
|
|
p1 = nearestrebased(repo, p1n, state)
|
|
|
if p1 is None:
|
|
|
p1 = dest
|
|
|
else:
|
|
|
p1 = state[p1n]
|
|
|
else: # p1n external
|
|
|
p1 = dest
|
|
|
p2 = p1n
|
|
|
|
|
|
if len(parents) == 2 and parents[1].rev() not in destancestors:
|
|
|
p2n = parents[1].rev()
|
|
|
# interesting second parent
|
|
|
if p2n in state:
|
|
|
if p1 == dest: # p1n in destancestors or external
|
|
|
p1 = state[p2n]
|
|
|
if p1 == revprecursor:
|
|
|
rp1 = obsoletenotrebased[p2n]
|
|
|
elif state[p2n] in revskipped:
|
|
|
p2 = nearestrebased(repo, p2n, state)
|
|
|
if p2 is None:
|
|
|
# no ancestors rebased yet, detach
|
|
|
p2 = dest
|
|
|
else:
|
|
|
p2 = state[p2n]
|
|
|
else: # p2n external
|
|
|
if p2 != nullrev: # p1n external too => rev is a merged revision
|
|
|
raise error.Abort(_('cannot use revision %d as base, result '
|
|
|
'would have 3 parents') % rev)
|
|
|
p2 = p2n
|
|
|
repo.ui.debug(" future parents are %d and %d\n" %
|
|
|
(repo[rp1 or p1].rev(), repo[p2].rev()))
|
|
|
|
|
|
if not any(p.rev() in state for p in parents):
|
|
|
# Case (1) root changeset of a non-detaching rebase set.
|
|
|
# Let the merge mechanism find the base itself.
|
|
|
base = None
|
|
|
elif not repo[rev].p2():
|
|
|
# Case (2) detaching the node with a single parent, use this parent
|
|
|
base = repo[rev].p1().rev()
|
|
|
else:
|
|
|
# Assuming there is a p1, this is the case where there also is a p2.
|
|
|
# We are thus rebasing a merge and need to pick the right merge base.
|
|
|
#
|
|
|
# Imagine we have:
|
|
|
# - M: current rebase revision in this step
|
|
|
# - A: one parent of M
|
|
|
# - B: other parent of M
|
|
|
# - D: destination of this merge step (p1 var)
|
|
|
#
|
|
|
# Consider the case where D is a descendant of A or B and the other is
|
|
|
# 'outside'. In this case, the right merge base is the D ancestor.
|
|
|
#
|
|
|
# An informal proof, assuming A is 'outside' and B is the D ancestor:
|
|
|
#
|
|
|
# If we pick B as the base, the merge involves:
|
|
|
# - changes from B to M (actual changeset payload)
|
|
|
# - changes from B to D (induced by rebase) as D is a rebased
|
|
|
# version of B)
|
|
|
# Which exactly represent the rebase operation.
|
|
|
#
|
|
|
# If we pick A as the base, the merge involves:
|
|
|
# - changes from A to M (actual changeset payload)
|
|
|
# - changes from A to D (with include changes between unrelated A and B
|
|
|
# plus changes induced by rebase)
|
|
|
# Which does not represent anything sensible and creates a lot of
|
|
|
# conflicts. A is thus not the right choice - B is.
|
|
|
#
|
|
|
# Note: The base found in this 'proof' is only correct in the specified
|
|
|
# case. This base does not make sense if is not D a descendant of A or B
|
|
|
# or if the other is not parent 'outside' (especially not if the other
|
|
|
# parent has been rebased). The current implementation does not
|
|
|
# make it feasible to consider different cases separately. In these
|
|
|
# other cases we currently just leave it to the user to correctly
|
|
|
# resolve an impossible merge using a wrong ancestor.
|
|
|
#
|
|
|
# xx, p1 could be -4, and both parents could probably be -4...
|
|
|
for p in repo[rev].parents():
|
|
|
if state.get(p.rev()) == p1:
|
|
|
base = p.rev()
|
|
|
break
|
|
|
else: # fallback when base not found
|
|
|
base = None
|
|
|
|
|
|
# Raise because this function is called wrong (see issue 4106)
|
|
|
raise AssertionError('no base found to rebase on '
|
|
|
'(defineparents called wrong)')
|
|
|
return rp1 or p1, p2, 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')):
|
|
|
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 updatebookmarks(repo, destnode, nstate, originalbookmarks, tr):
|
|
|
'Move bookmarks to their correct changesets, and delete divergent ones'
|
|
|
marks = repo._bookmarks
|
|
|
for k, v in originalbookmarks.iteritems():
|
|
|
if v in nstate:
|
|
|
# update the bookmarks for revs that have moved
|
|
|
marks[k] = nstate[v]
|
|
|
bookmarks.deletedivergent(repo, [destnode], k)
|
|
|
marks.recordchange(tr)
|
|
|
|
|
|
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'
|
|
|
_clearrebasesetvisibiliy(repo)
|
|
|
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, dest, 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
|
|
|
# dstates list must must not contain the dest rev (issue4896)
|
|
|
dstates = [s for s in state.values() if s >= 0 and s != dest]
|
|
|
immutable = [d for d in dstates 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 dstates:
|
|
|
descendants = set(repo.changelog.descendants(dstates))
|
|
|
if descendants - set(dstates):
|
|
|
repo.ui.warn(_("warning: new changesets detected on destination "
|
|
|
"branch, can't strip\n"))
|
|
|
cleanup = False
|
|
|
|
|
|
if cleanup:
|
|
|
shouldupdate = False
|
|
|
rebased = filter(lambda x: x >= 0 and x != dest, state.values())
|
|
|
if rebased:
|
|
|
strippoints = [
|
|
|
c.node() for c in repo.set('roots(%ld)', rebased)]
|
|
|
|
|
|
updateifonnodes = set(rebased)
|
|
|
updateifonnodes.add(dest)
|
|
|
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 buildstate(repo, dest, rebaseset, collapse, obsoletenotrebased):
|
|
|
'''Define which revisions are going to be rebased and where
|
|
|
|
|
|
repo: repo
|
|
|
dest: context
|
|
|
rebaseset: set of rev
|
|
|
'''
|
|
|
originalwd = repo['.'].rev()
|
|
|
_setrebasesetvisibility(repo, set(rebaseset) | {originalwd})
|
|
|
|
|
|
# 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() and (dest.node() in
|
|
|
[s.node for s in repo.mq.applied]):
|
|
|
raise error.Abort(_('cannot rebase onto an applied mq patch'))
|
|
|
|
|
|
roots = list(repo.set('roots(%ld)', rebaseset))
|
|
|
if not roots:
|
|
|
raise error.Abort(_('no matching revisions'))
|
|
|
roots.sort()
|
|
|
state = dict.fromkeys(rebaseset, revtodo)
|
|
|
detachset = set()
|
|
|
emptyrebase = True
|
|
|
for root in roots:
|
|
|
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 root in dest.children():
|
|
|
# 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))
|
|
|
# Rebase tries to turn <dest> into a parent of <root> while
|
|
|
# preserving the number of parents of rebased changesets:
|
|
|
#
|
|
|
# - A changeset with a single parent will always be rebased as a
|
|
|
# changeset with a single parent.
|
|
|
#
|
|
|
# - A merge will be rebased as merge unless its parents are both
|
|
|
# ancestors of <dest> or are themselves in the rebased set and
|
|
|
# pruned while rebased.
|
|
|
#
|
|
|
# If one parent of <root> is an ancestor of <dest>, the rebased
|
|
|
# version of this parent will be <dest>. This is always true with
|
|
|
# --base option.
|
|
|
#
|
|
|
# Otherwise, we need to *replace* the original parents with
|
|
|
# <dest>. This "detaches" the rebased set from its former location
|
|
|
# and rebases it onto <dest>. Changes introduced by ancestors of
|
|
|
# <root> not common with <dest> (the detachset, marked as
|
|
|
# nullmerge) are "removed" from the rebased changesets.
|
|
|
#
|
|
|
# - If <root> has a single parent, set it to <dest>.
|
|
|
#
|
|
|
# - If <root> is a merge, we cannot decide which parent to
|
|
|
# replace, the rebase operation is not clearly defined.
|
|
|
#
|
|
|
# The table below sums up this behavior:
|
|
|
#
|
|
|
# +------------------+----------------------+-------------------------+
|
|
|
# | | one parent | merge |
|
|
|
# +------------------+----------------------+-------------------------+
|
|
|
# | parent in | new parent is <dest> | parents in ::<dest> are |
|
|
|
# | ::<dest> | | remapped to <dest> |
|
|
|
# +------------------+----------------------+-------------------------+
|
|
|
# | unrelated source | new parent is <dest> | ambiguous, abort |
|
|
|
# +------------------+----------------------+-------------------------+
|
|
|
#
|
|
|
# The actual abort is handled by `defineparents`
|
|
|
if len(root.parents()) <= 1:
|
|
|
# ancestors of <root> not ancestors of <dest>
|
|
|
detachset.update(repo.changelog.findmissingrevs([commonbase.rev()],
|
|
|
[root.rev()]))
|
|
|
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
|
|
|
for r in detachset:
|
|
|
if r not in state:
|
|
|
state[r] = nullmerge
|
|
|
if len(roots) > 1:
|
|
|
# If we have multiple roots, we may have "hole" in the rebase set.
|
|
|
# Rebase roots that descend from those "hole" should not be detached as
|
|
|
# other root are. We use the special `revignored` to inform rebase that
|
|
|
# the revision should be ignored but that `defineparents` should search
|
|
|
# a rebase destination that make sense regarding rebased topology.
|
|
|
rebasedomain = set(repo.revs('%ld::%ld', rebaseset, rebaseset))
|
|
|
for ignored in set(rebasedomain) - set(rebaseset):
|
|
|
state[ignored] = revignored
|
|
|
for r in obsoletenotrebased:
|
|
|
if obsoletenotrebased[r] is None:
|
|
|
state[r] = revpruned
|
|
|
else:
|
|
|
state[r] = revprecursor
|
|
|
return originalwd, dest.rev(), state
|
|
|
|
|
|
def clearrebased(ui, repo, state, skipped, collapsedas=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 obsolete.isenabled(repo, obsolete.createmarkersopt):
|
|
|
markers = []
|
|
|
for rev, newrev in sorted(state.items()):
|
|
|
if newrev >= 0 and newrev != rev:
|
|
|
if rev in skipped:
|
|
|
succs = ()
|
|
|
elif collapsedas is not None:
|
|
|
succs = (repo[collapsedas],)
|
|
|
else:
|
|
|
succs = (repo[newrev],)
|
|
|
markers.append((repo[rev], succs))
|
|
|
if markers:
|
|
|
obsolete.createmarkers(repo, markers, operation='rebase')
|
|
|
else:
|
|
|
rebased = [rev for rev in state
|
|
|
if state[rev] > nullmerge and state[rev] != rev]
|
|
|
if rebased:
|
|
|
stripped = []
|
|
|
for root in repo.set('roots(%ld)', rebased):
|
|
|
if set(repo.changelog.descendants([root.rev()])) - set(state):
|
|
|
ui.warn(_("warning: new changesets detected "
|
|
|
"on source branch, not stripping\n"))
|
|
|
else:
|
|
|
stripped.append(root.node())
|
|
|
if stripped:
|
|
|
# backup the old csets by default
|
|
|
repair.strip(ui, repo, stripped, "all")
|
|
|
|
|
|
|
|
|
def pullrebase(orig, ui, repo, *args, **opts):
|
|
|
'Call rebase after pull if the latter has been invoked with --rebase'
|
|
|
ret = None
|
|
|
if opts.get('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)
|
|
|
|
|
|
wlock = lock = None
|
|
|
try:
|
|
|
wlock = repo.wlock()
|
|
|
lock = repo.lock()
|
|
|
if opts.get('update'):
|
|
|
del opts['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 'rev' in opts:
|
|
|
del opts['rev']
|
|
|
# positional argument from pull conflicts with rebase's own
|
|
|
# --source.
|
|
|
if 'source' in opts:
|
|
|
del opts['source']
|
|
|
# revsprepull is the len of the repo, not revnum of tip.
|
|
|
destspace = list(repo.changelog.revs(start=revsprepull))
|
|
|
opts['_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)
|
|
|
finally:
|
|
|
release(lock, wlock)
|
|
|
else:
|
|
|
if opts.get('tool'):
|
|
|
raise error.Abort(_('--tool can only be used with --rebase'))
|
|
|
ret = orig(ui, repo, *args, **opts)
|
|
|
|
|
|
return ret
|
|
|
|
|
|
def _setrebasesetvisibility(repo, revs):
|
|
|
"""store the currently rebased set on the repo object
|
|
|
|
|
|
This is used by another function to prevent rebased revision to because
|
|
|
hidden (see issue4504)"""
|
|
|
repo = repo.unfiltered()
|
|
|
repo._rebaseset = revs
|
|
|
# invalidate cache if visibility changes
|
|
|
hiddens = repo.filteredrevcache.get('visible', set())
|
|
|
if revs & hiddens:
|
|
|
repo.invalidatevolatilesets()
|
|
|
|
|
|
def _clearrebasesetvisibiliy(repo):
|
|
|
"""remove rebaseset data from the repo"""
|
|
|
repo = repo.unfiltered()
|
|
|
if '_rebaseset' in vars(repo):
|
|
|
del repo._rebaseset
|
|
|
|
|
|
def _rebasedvisible(orig, repo):
|
|
|
"""ensure rebased revs stay visible (see issue4504)"""
|
|
|
blockers = orig(repo)
|
|
|
blockers.update(getattr(repo, '_rebaseset', ()))
|
|
|
return blockers
|
|
|
|
|
|
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, dest):
|
|
|
"""return a mapping obsolete => successor for all obsolete nodes to be
|
|
|
rebased that have a successors in the destination
|
|
|
|
|
|
obsolete => None entries in the mapping indicate nodes with no successor"""
|
|
|
obsoletenotrebased = {}
|
|
|
|
|
|
# Build a mapping successor => obsolete nodes for the obsolete
|
|
|
# nodes to be rebased
|
|
|
allsuccessors = {}
|
|
|
cl = repo.changelog
|
|
|
for r in rebaseobsrevs:
|
|
|
node = cl.node(r)
|
|
|
for s in obsolete.allsuccessors(repo.obsstore, [node]):
|
|
|
try:
|
|
|
allsuccessors[cl.rev(s)] = cl.rev(node)
|
|
|
except LookupError:
|
|
|
pass
|
|
|
|
|
|
if allsuccessors:
|
|
|
# Look for successors of obsolete nodes to be rebased among
|
|
|
# the ancestors of dest
|
|
|
ancs = cl.ancestors([repo[dest].rev()],
|
|
|
stoprev=min(allsuccessors),
|
|
|
inclusive=True)
|
|
|
for s in allsuccessors:
|
|
|
if s in ancs:
|
|
|
obsoletenotrebased[allsuccessors[s]] = s
|
|
|
elif (s == allsuccessors[s] and
|
|
|
allsuccessors.values().count(s) == 1):
|
|
|
# plain prune
|
|
|
obsoletenotrebased[s] = None
|
|
|
|
|
|
return obsoletenotrebased
|
|
|
|
|
|
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')])
|
|
|
# ensure rebased rev are not hidden
|
|
|
extensions.wrapfunction(repoview, '_getdynamicblockers', _rebasedvisible)
|
|
|
|
