# pushrebase.py - server-side rebasing of pushed changesets # # Copyright 2014 Facebook, Inc. # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. import errno, os, tempfile, mmap, time from mercurial import bundle2, hg, scmutil, exchange, commands from mercurial import util, error, discovery, changegroup, context, revsetlang from mercurial import obsolete, pushkey, phases, extensions, manifest from mercurial import encoding, registrar from mercurial.extensions import wrapcommand, wrapfunction, unwrapfunction from mercurial.hg import repository from mercurial.node import nullid, hex, bin from mercurial.i18n import _ testedwith = 'ships-with-fb-hgext' cmdtable = {} command = registrar.command(cmdtable) rebaseparttype = 'b2x:rebase' commonheadsparttype = 'b2x:commonheads' experimental = 'experimental' configonto = 'server-rebase-onto' pushrebasemarker = '__pushrebase_processed__' donotrebasemarker = '__pushrebase_donotrebase__' def uisetup(ui): # remotenames circumvents the default push implementation entirely, so make # sure we load after it so that we wrap it. order = extensions._order order.remove('pushrebase') order.append('pushrebase') extensions._order = order def extsetup(ui): entry = wrapcommand(commands.table, 'push', _push) try: # Don't add the 'to' arg if it already exists extensions.find('remotenames') except KeyError: entry[1].append(('', 'to', '', _('server revision to rebase onto'))) partorder = exchange.b2partsgenorder partorder.insert(partorder.index('changeset'), partorder.pop(partorder.index(rebaseparttype))) partorder.insert(0, partorder.pop(partorder.index(commonheadsparttype))) wrapfunction(discovery, 'checkheads', _checkheads) # we want to disable the heads check because in pushrebase repos, we # expect the heads to change during the push and we should not abort. # The check heads functions are used to verify that the heads haven't # changed since the client did the initial discovery. Pushrebase is meant # to allow concurrent pushes, so the heads may have very well changed. # So let's not do this check. wrapfunction(exchange, 'check_heads', _exchangecheckheads) wrapfunction(exchange, '_pushb2ctxcheckheads', _skipcheckheads) origpushkeyhandler = bundle2.parthandlermapping['pushkey'] newpushkeyhandler = lambda *args, **kwargs: \ bundle2pushkey(origpushkeyhandler, *args, **kwargs) newpushkeyhandler.params = origpushkeyhandler.params bundle2.parthandlermapping['pushkey'] = newpushkeyhandler bundle2.parthandlermapping['b2x:pushkey'] = newpushkeyhandler wrapfunction(exchange, 'unbundle', unbundle) wrapfunction(hg, '_peerorrepo', _peerorrepo) def reposetup(ui, repo): if repo.ui.configbool('pushrebase', 'blocknonpushrebase'): repo.ui.setconfig('hooks', 'prechangegroup.blocknonpushrebase', blocknonpushrebase) def blocknonpushrebase(ui, repo, **kwargs): if not repo.ui.configbool('pushrebase', pushrebasemarker): raise error.Abort("this repository requires that you push using " "'hg push --to'") def _peerorrepo(orig, ui, path, create=False, **kwargs): # Force hooks to use a bundle repo bundlepath = encoding.environ.get("HG_HOOK_BUNDLEPATH") if bundlepath: return orig(ui, bundlepath, create=create, **kwargs) return orig(ui, path, create, **kwargs) def unbundle(orig, repo, cg, heads, source, url): # Preload the manifests that the client says we'll need. This happens # outside the lock, thus cutting down on our lock time and increasing commit # throughput. if util.safehasattr(cg, 'params'): preloadmfs = cg.params.get('preloadmanifests') if preloadmfs: for mfnode in preloadmfs.split(','): repo.manifestlog[bin(mfnode)].read() return orig(repo, cg, heads, source, url) def validaterevset(repo, revset): "Abort if this is a rebasable revset, return None otherwise" if not repo.revs(revset): raise error.Abort(_('nothing to rebase')) if repo.revs('%r and public()', revset): raise error.Abort(_('cannot rebase public changesets')) if repo.revs('%r and obsolete()', revset): raise error.Abort(_('cannot rebase obsolete changesets')) heads = repo.revs('heads(%r)', revset) if len(heads) > 1: raise error.Abort(_('cannot rebase divergent changesets')) repo.ui.note(_('validated revset for rebase\n')) def getrebasepart(repo, peer, outgoing, onto, newhead): if not outgoing.missing: raise error.Abort(_('no changesets to rebase')) if rebaseparttype not in bundle2.bundle2caps(peer): raise error.Abort(_('no server support for %r') % rebaseparttype) validaterevset(repo, revsetlang.formatspec('%ln', outgoing.missing)) cg = changegroup.getlocalchangegroupraw(repo, 'push', outgoing) # Explicitly notify the server what obsmarker versions the client supports # so the client could receive marker from the server. # # The core mercurial logic will do the right thing (enable obsmarker # capabilities in the pushback bundle) if obsmarker exchange is enabled # client-side. # # But we want the marker without enabling marker exchange, and our server # could reply a marker without exchange or even obsstore enabled. So we # bypass the "standard" way of capabilities check by sending the supported # versions directly in our own part. Note: do not enable "exchange" because # it has an unwanted side effect: pushing markers from client to server. # # "createmarkers" is all we need to be able to write a new marker. if obsolete.isenabled(repo, obsolete.createmarkersopt): obsmarkerversions = '\0'.join(str(v) for v in obsolete.formats) else: obsmarkerversions = '' # .upper() marks this as a mandatory part: server will abort if there's no # handler return bundle2.bundlepart( rebaseparttype.upper(), mandatoryparams={ 'onto': onto, 'newhead': repr(newhead), }.items(), advisoryparams={ # advisory: (old) server could ignore this without error 'obsmarkerversions': obsmarkerversions, }.items(), data = cg) def _checkheads(orig, pushop): repo = pushop.repo onto = repo.ui.config(experimental, configonto) if onto: # This is a rebasing push # If remotenames is enabled, we don't want to abort if the user uses # --to, even if the server doesn't support pushrebase. if checkremotenames(): return # The rest of the checks are performed during bundle2 part processing; # we need to bypass the regular push checks because it will look like # we're pushing a new head, which isn't normally allowed if not repo.ui.configbool('experimental', 'bundle2-exp', False): raise error.Abort(_('bundle2 needs to be enabled on client')) if not pushop.remote.capable('bundle2-exp'): raise error.Abort(_('bundle2 needs to be enabled on server')) return else: return orig(pushop) def _exchangecheckheads(orig, repo, *args, **kwargs): onto = repo.ui.config(experimental, configonto) if not onto: # Only do this work if it's not a rebasing push return orig(repo, *args, **kwargs) def _skipcheckheads(orig, pushop, bundler): if not pushop.ui.config(experimental, configonto): # no check if we rebase return orig(pushop, bundler) def _push(orig, ui, repo, *args, **opts): onto = opts.get('to') if not onto and not opts.get('rev') and not opts.get('dest'): try: # If it's a tracking bookmark, remotenames will push there, # so let's set that up as our --to. remotenames = extensions.find('remotenames') active = remotenames.bmactive(repo) tracking = remotenames._readtracking(repo) if active and active in tracking: track = tracking[active] path, book = remotenames.splitremotename(track) onto = book except KeyError: # No remotenames? No big deal. pass overrides = {(experimental, configonto): onto, ('remotenames', 'allownonfastforward'): True} if onto: overrides[(experimental, 'bundle2.pushback')] = True wrapfunction(exchange, '_localphasemove', _phasemove) wrapfunction(obsolete.obsstore, 'mergemarkers', _mergemarkers) try: with ui.configoverride(overrides, 'pushrebase'): result = orig(ui, repo, *args, **opts) finally: if onto: unwrapfunction(exchange, '_localphasemove', _phasemove) unwrapfunction(obsolete.obsstore, 'mergemarkers', _mergemarkers) return result def _mergemarkers(orig, self, transaction, data): """record new markers so we could know the correct nodes for _phasemove""" version, markers = obsolete._readmarkers(data) self._pushrebasereplaces = {} if version == obsolete._fm1version: # only support fm1 1:1 replacements for now, record prec -> sucs for prec, sucs, flags, meta, date, parents in markers: if len(sucs) == 1: self._pushrebasereplaces[prec] = sucs[0] return orig(self, transaction, data) def _phasemove(orig, pushop, nodes, phase=phases.public): """prevent original changesets from being marked public When marking changesets as public, we need to mark the replaced nodes returned from the server instead. This is done by looking at the new obsmarker we received during "_mergemarkers" and map old nodes to new ones. See exchange.push for the order of this and bundle2 pushback: _pushdiscovery(pushop) _pushbundle2(pushop) # bundle2 pushback is processed here, but the client receiving the # pushback cannot affect pushop.*heads (which affects phasemove), # because it only gets "repo", and creates a separate "op": bundle2.processbundle(pushop.repo, reply, trgetter) _pushchangeset(pushop) _pushsyncphase(pushop) _localphasemove(...) # this method always gets called _pushobsolete(pushop) _pushbookmark(pushop) The least hacky way to get things "right" seem to be: 1. In core, allow bundle2 pushback handler to affect the original "pushop" somehow (so original pushop's (common|future)heads could be updated accordingly and phasemove logic is affected) 2. In pushrebase extension, add a new bundle2 part handler to receive the new relationship, correct pushop.*headers, and write obsmarkers. 3. Migrate the obsmarker part to the new bundle2 part added in step 2, i.e. the server won't send obsmarkers directly. For now, we don't have "1" so things are done in a bit hacky way. """ # find replacements. note: _pushrebasereplaces could be empty if obsstore # is not enabled locally. mapping = getattr(pushop.repo.obsstore, '_pushrebasereplaces', {}) nodes = [mapping.get(n, n) for n in nodes] if phase == phases.public: # only allow new nodes to become public allowednodes = set(mapping.values()) nodes = [n for n in nodes if n in allowednodes] orig(pushop, nodes, phase) @exchange.b2partsgenerator(commonheadsparttype) def commonheadspartgen(pushop, bundler): if rebaseparttype not in bundle2.bundle2caps(pushop.remote): # Server doesn't support pushrebase, so just fallback to normal push. return bundler.newpart(commonheadsparttype, data=''.join(pushop.outgoing.commonheads)) @bundle2.parthandler(commonheadsparttype) def commonheadshandler(op, inpart): nodeid = inpart.read(20) while len(nodeid) == 20: op.records.add(commonheadsparttype, nodeid) nodeid = inpart.read(20) assert not nodeid # data should split evenly into blocks of 20 bytes def checkremotenames(): try: extensions.find('remotenames') return True except KeyError: return False @exchange.b2partsgenerator(rebaseparttype) def partgen(pushop, bundler): onto = pushop.ui.config(experimental, configonto) if 'changesets' in pushop.stepsdone or not onto: return if (rebaseparttype not in bundle2.bundle2caps(pushop.remote) and checkremotenames()): # Server doesn't support pushrebase, but --to is valid in remotenames as # well, so just let it through. return pushop.stepsdone.add('changesets') if not pushop.outgoing.missing: # It's important that this text match the text found in upstream # Mercurial, since some tools rely on this string to know if a push # succeeded despite not pushing commits. pushop.ui.status(_('no changes found\n')) pushop.cgresult = 0 return # Force push means no rebasing, so let's just take the existing parent. if pushop.force: onto = donotrebasemarker rebasepart = getrebasepart(pushop.repo, pushop.remote, pushop.outgoing, onto, pushop.newbranch) bundler.addpart(rebasepart) # Tell the server which manifests to load before taking the lock. # This helps shorten the duration of the lock, which increases our potential # commit rate. missing = pushop.outgoing.missing roots = pushop.repo.set('parents(%ln) - %ln', missing, missing) preloadnodes = [hex(r.manifestnode()) for r in roots] bundler.addparam("preloadmanifests", ','.join(preloadnodes)) def handlereply(op): # server either succeeds or aborts; no code to read pushop.cgresult = 1 return handlereply bundle2.capabilities[rebaseparttype] = () def _makebundlefile(part): """constructs a temporary bundle file part.data should be an uncompressed v1 changegroup""" fp = None fd, bundlefile = tempfile.mkstemp() try: # guards bundlefile try: # guards fp fp = os.fdopen(fd, 'wb') magic = 'HG10UN' fp.write(magic) data = part.read(mmap.PAGESIZE - len(magic)) while data: fp.write(data) data = part.read(mmap.PAGESIZE) finally: fp.close() except Exception: try: os.unlink(bundlefile) except Exception: # we would rather see the original exception pass raise return bundlefile def _getrevs(bundle, onto): 'extracts and validates the revs to be imported' validaterevset(bundle, 'bundle()') revs = [bundle[r] for r in bundle.revs('sort(bundle())')] onto = bundle[onto.hex()] # Fast forward update, no rebase needed if list(bundle.set('bundle() & %d::', onto.rev())): return revs, onto if revs: # We want to rebase the highest bundle root that is an ancestor of # `onto`. oldonto = list(bundle.set('max(parents(bundle()) - bundle() & ::%d)', onto.rev())) if not oldonto: # If there's no shared history, only allow the rebase if the # incoming changes are completely distinct. sharedparents = list(bundle.set('parents(bundle()) - bundle()')) if not sharedparents: return revs, bundle[nullid] raise error.Abort(_('pushed changesets do not branch from an ' 'ancestor of the desired destination %s') % onto.hex()) oldonto = oldonto[0] # Computes a list of all the incoming file changes bundlefiles = set() for bundlerev in revs: bundlefiles.update(bundlerev.files()) def findconflicts(): # Returns all the files touched in the bundle that are also touched # between the old onto (ex: our old bookmark location) and the new # onto (ex: the server's actual bookmark location). filematcher = scmutil.matchfiles(bundle, bundlefiles) return onto.manifest().diff(oldonto.manifest(), filematcher).keys() def findconflictsfast(): # Fast path for detecting conflicting files. Inspects the changelog # file list instead of loading manifests. This only works for # non-merge commits, since merge commit file lists do not include # all the files changed in the merged. ontofiles = set() for betweenctx in bundle.set('%d %% %d', onto.rev(), oldonto.rev()): ontofiles.update(betweenctx.files()) return bundlefiles.intersection(ontofiles) if bundle.revs('(%d %% %d) - not merge()', onto.rev(), oldonto.rev()): # If anything between oldonto and newonto is a merge commit, use the # slower manifest diff path. conflicts = findconflicts() else: conflicts = findconflictsfast() if conflicts: raise error.Abort(_('conflicting changes in:\n%s') % ''.join(' %s\n' % f for f in sorted(conflicts))) return revs, oldonto def _graft(repo, rev, mapping, lastdestnode): '''duplicate changeset "rev" with parents from "mapping"''' oldp1 = rev.p1().node() oldp2 = rev.p2().node() newp1 = mapping.get(oldp1, oldp1) newp2 = mapping.get(oldp2, oldp2) m = rev.manifest() def getfilectx(repo, memctx, path): if path in m: fctx = rev[path] flags = fctx.flags() copied = fctx.renamed() if copied: copied = copied[0] return context.memfilectx(repo, fctx.path(), fctx.data(), islink='l' in flags, isexec='x' in flags, copied=copied) else: return None # If the incoming commit has no parents, but requested a rebase, # allow it only for the first commit. The null/null commit will always # be the first commit since we only allow a nullid->nonnullid mapping if the # incoming commits are a completely distinct history (see `sharedparents` in # getrevs()), so there's no risk of commits with a single null parent # accidentally getting translated first. if oldp1 == nullid and oldp2 == nullid: if newp1 != nullid: newp2 = nullid del mapping[nullid] if oldp1 != nullid and oldp2 != nullid: # The way commits work is they copy p1, then apply the necessary changes # to get to the new state. In a pushrebase situation, we are applying # changes from the pre-rebase commit to a post-rebase commit, which # means we need to ensure that changes caused by the rebase are # preserved. In a merge commit, if p2 is the post-rebase commit that # contains all the files from the rebase destination, those changes will # be lost, since the newp1 doesn't have those changes, and # oldp1.diff(oldrev) doesn't have them either. The solution is to ensure # that the parent that contains all the original rebase destination # files is always p1. We do that by just swapping them here. if newp2 == lastdestnode: newtemp = newp1 oldtemp = oldp1 oldp1 = oldp2 oldp2 = oldtemp newp1 = newp2 newp2 = newtemp # If it's a merge commit, Mercurial's rev.files() only returns the files # that are different from both p1 and p2, so it would not capture all of # the incoming changes from p2 (for instance, new files in p2). The fix # is to manually diff the rev manifest and it's p1 to get the list of # files that have changed. We only need to diff against p1, and not p2, # because Mercurial constructs new commits by applying our specified # files on top of a copy of the p1 manifest, so we only need the diff # against p1. bundlerepo = rev._repo files = rev.manifest().diff(bundlerepo[oldp1].manifest()).keys() else: files = rev.files() date = rev.date() if repo.ui.configbool('pushrebase', 'rewritedates'): date = (time.time(), date[1]) return context.memctx(repo, [newp1, newp2], rev.description(), files, getfilectx, rev.user(), date, rev.extra(), ).commit() def _buildobsolete(replacements, oldrepo, newrepo, date): '''return obsmarkers, add them locally (server-side) if obsstore enabled''' markers = [(oldrepo[oldrev], (newrepo[newrev],), {'operation': 'push', 'user': newrepo[newrev].user()}) for oldrev, newrev in replacements.items() if newrev != oldrev] if obsolete.isenabled(newrepo, obsolete.createmarkersopt): obsolete.createmarkers(newrepo, markers, date=date) return markers def _addpushbackchangegroup(repo, reply, outgoing): '''adds changegroup part to reply containing revs from outgoing.missing''' cgversions = set(reply.capabilities.get('changegroup')) if not cgversions: cgversions.add('01') version = max(cgversions & set(changegroup.supportedoutgoingversions(repo))) cg = changegroup.getlocalchangegroupraw(repo, 'rebase:reply', outgoing, version = version) cgpart = reply.newpart('CHANGEGROUP', data=cg) if version != '01': cgpart.addparam('version', version) def _addpushbackobsolete(repo, reply, markers, markerdate, clientobsmarkerversions): '''adds obsmarkers to reply''' # experimental config: pushrebase.pushback.obsmarkers # if set to False, the server will not push back obsmarkers. if not repo.ui.configbool('pushrebase', 'pushback.obsmarkers', True): return # _buildobsolete has hard-coded obsolete._fm1version raw markers, so client # needs to support it, and the reply needs to have the correct capabilities if obsolete._fm1version not in clientobsmarkerversions: return reply.capabilities['obsmarkers'] = ['V1'] flag = 0 parents = None try: rawmarkers = [(pre.node(), tuple(s.node() for s in sucs), flag, tuple(sorted(meta.items())), markerdate, parents) for pre, sucs, meta in markers] bundle2.buildobsmarkerspart(reply, rawmarkers) except ValueError as exc: repo.ui.status(_("can't send obsolete markers: %s") % exc.message) def _addpushbackparts(op, replacements, markers, markerdate, clientobsmarkerversions): '''adds pushback to reply if supported by the client''' if (op.records[commonheadsparttype] and op.reply and 'pushback' in op.reply.capabilities): outgoing = discovery.outgoing(op.repo, op.records[commonheadsparttype], [new for old, new in replacements.items() if old != new]) if outgoing.missing: plural = 's' if len(outgoing.missing) > 1 else '' op.repo.ui.warn(_("%s new changeset%s from the server will be " "downloaded\n") % (len(outgoing.missing), plural)) _addpushbackchangegroup(op.repo, op.reply, outgoing) _addpushbackobsolete(op.repo, op.reply, markers, markerdate, clientobsmarkerversions) def resolveonto(repo, ontoarg): try: if ontoarg != donotrebasemarker: return scmutil.revsingle(repo, ontoarg) except error.RepoLookupError: # Probably a new bookmark. Leave onto as None to not do any rebasing pass # onto is None means don't do rebasing return None @bundle2.parthandler(rebaseparttype, ('onto', 'newhead', 'obsmarkerversions')) def bundle2rebase(op, part): '''unbundle a bundle2 containing a changegroup to rebase''' params = part.params bundlefile = None bundle = None clientobsmarkerversions = [ int(v) for v in params.get('obsmarkerversions', '').split('\0') if v] markers = [] markerdate = util.makedate() try: # guards bundlefile bundlefile = _makebundlefile(part) bundlepath = "bundle:%s+%s" % (op.repo.root, bundlefile) bundle = repository(op.repo.ui, bundlepath) # Allow running hooks on the new commits before we take the lock prelockrebaseargs = op.hookargs.copy() prelockrebaseargs['source'] = 'push' prelockrebaseargs['bundle2'] = '1' prelockrebaseargs['node'] = scmutil.revsingle(bundle, 'min(bundle())').hex() prelockrebaseargs['hook_bundlepath'] = bundlefile op.repo.hook("prepushrebase", throw=True, **prelockrebaseargs) op.repo.ui.setconfig('pushrebase', pushrebasemarker, True) # We will need the bundle revs after the lock is taken, so let's # precache all the bundle rev manifests. bundlerepocache = {} bundlectxs = list(bundle.set('bundle()')) manifestcachesize = op.repo.ui.configint('format', 'manifestcachesize') or 10 if len(bundlectxs) < manifestcachesize: for ctx in bundlectxs: bundlerepocache[ctx.manifestnode()] = ctx.manifestctx().read() preonto = resolveonto(bundle, params.get('onto', donotrebasemarker)) preontocache = None if preonto: cache = bundle.manifestlog._revlog._cache if cache: cachenode, cacherev, cachetext = cache if cachenode == preonto.node(): preontocache = cache if not preontocache: cachenode = preonto.manifestnode() cacherev = bundle.manifestlog._revlog.rev(cachenode) cachetext = bundle.manifestlog[cachenode].read().text() preontocache = (cachenode, cacherev, cachetext) tr = op.gettransaction() hookargs = dict(tr.hookargs) # Recreate the bundle repo, since taking the lock in gettransaction() # may have caused it to become out of date. # (but grab a copy of the cache first) bundle.close() bundle = repository(op.repo.ui, bundlepath) # Preload the caches with data we already have. We need to make copies # here so that original repo caches don't get tainted with bundle # specific data. newdirmancache = bundle.manifestlog._dirmancache for dir, dircache in op.repo.manifestlog._dirmancache.iteritems(): for mfnode in dircache: mfctx = dircache[mfnode] newmfctx = manifest.manifestctx(bundle, mfnode) newmfctx._data = mfctx._data newdirmancache[dir][mfnode] = newmfctx for mfnode, mfdict in bundlerepocache.iteritems(): newmfctx = manifest.manifestctx(bundle, mfnode) newmfctx._data = mfdict newdirmancache[""][mfnode] = newmfctx newfulltextcache = op.repo.manifestlog._revlog._fulltextcache.copy() bundle.manifestlog._revlog._fulltextcache = newfulltextcache onto = resolveonto(op.repo, params.get('onto', donotrebasemarker)) if not params['newhead']: if not op.repo.revs('%r and head()', params['onto']): raise error.Abort(_('rebase would create a new head on server')) if onto is None: maxcommonanc = list(bundle.set('max(parents(bundle()) - bundle())')) if not maxcommonanc: onto = op.repo[nullid] else: onto = maxcommonanc[0] revs, oldonto = _getrevs(bundle, onto) op.repo.hook("prechangegroup", **hookargs) mapping = {} # Seed the mapping with oldonto->onto mapping[oldonto.node()] = onto.node() replacements = {} added = [] # Notify the user of what is being pushed plural = 's' if len(revs) > 1 else '' op.repo.ui.warn(_("pushing %s changset%s:\n") % (len(revs), plural)) maxoutput = 10 for i in range(0, min(len(revs), maxoutput)): firstline = bundle[revs[i]].description().split('\n')[0][:50] op.repo.ui.warn((" %s %s\n") % (revs[i], firstline)) if len(revs) > maxoutput + 1: op.repo.ui.warn((" ...\n")) firstline = bundle[revs[-1]].description().split('\n')[0][:50] op.repo.ui.warn((" %s %s\n") % (revs[-1], firstline)) # Prepopulate the revlog _cache with the original onto's fulltext. This # means reading the new onto's manifest will likely have a much shorter # delta chain to traverse. if preontocache: op.repo.manifestlog._revlog._cache = preontocache onto.manifest() lastdestnode = None for rev in revs: newrev = _graft(op.repo, rev, mapping, lastdestnode) new = op.repo[newrev] oldnode = rev.node() newnode = new.node() replacements[oldnode] = newnode mapping[oldnode] = newnode added.append(newnode) # Track which commit contains the original rebase destination # contents, so we can preserve the appropriate side's content during # merges. if not lastdestnode or oldnode == lastdestnode: lastdestnode = newnode if 'node' not in tr.hookargs: tr.hookargs['node'] = hex(newnode) hookargs['node'] = hex(newnode) markers = _buildobsolete(replacements, bundle, op.repo, markerdate) finally: try: if bundlefile: os.unlink(bundlefile) except OSError as e: if e.errno != errno.ENOENT: raise if bundle: bundle.close() publishing = op.repo.ui.configbool('phases', 'publish', True) if publishing: phases.advanceboundary(op.repo, tr, phases.public, [added[-1]]) p = lambda: tr.writepending() and op.repo.root or "" op.repo.hook("pretxnchangegroup", throw=True, pending=p, **hookargs) def runhooks(): args = hookargs.copy() args['node'] = hex(added[0]) op.repo.hook("changegroup", **args) for n in added: args = hookargs.copy() args['node'] = hex(n) op.repo.hook("incoming", **args) tr.addpostclose('serverrebase-cg-hooks', lambda tr: op.repo._afterlock(runhooks)) _addpushbackparts(op, replacements, markers, markerdate, clientobsmarkerversions) for k in replacements.keys(): replacements[hex(k)] = hex(replacements[k]) op.records.add(rebaseparttype, replacements) return 1 def bundle2pushkey(orig, op, part): replacements = dict(sum([record.items() for record in op.records[rebaseparttype]], [])) namespace = pushkey.decode(part.params['namespace']) if namespace == 'phases': key = pushkey.decode(part.params['key']) part.params['key'] = pushkey.encode(replacements.get(key, key)) if namespace == 'bookmarks': new = pushkey.decode(part.params['new']) part.params['new'] = pushkey.encode(replacements.get(new, new)) serverbin = op.repo._bookmarks.get(part.params['key']) clienthex = pushkey.decode(part.params['old']) if serverbin and clienthex: cl = op.repo.changelog revserver = cl.rev(serverbin) revclient = cl.rev(bin(clienthex)) if revclient in cl.ancestors([revserver]): # if the client's bookmark origin is an lagging behind the # server's location for that bookmark (usual for pushrebase) # then update the old location to match the real location # # TODO: We would prefer to only do this for pushrebase pushes # but that isn't straightforward so we just do it always here. # This forbids moving bookmarks backwards from clients. part.params['old'] = pushkey.encode(hex(serverbin)) return orig(op, part)