|
|
# exchange.py - utility to exchange data between repos.
|
|
|
#
|
|
|
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
|
|
|
#
|
|
|
# This software may be used and distributed according to the terms of the
|
|
|
# GNU General Public License version 2 or any later version.
|
|
|
|
|
|
from i18n import _
|
|
|
from node import hex, nullid
|
|
|
import errno, urllib
|
|
|
import util, scmutil, changegroup, base85, error
|
|
|
import discovery, phases, obsolete, bookmarks, bundle2, pushkey
|
|
|
|
|
|
def readbundle(ui, fh, fname, vfs=None):
|
|
|
header = changegroup.readexactly(fh, 4)
|
|
|
|
|
|
alg = None
|
|
|
if not fname:
|
|
|
fname = "stream"
|
|
|
if not header.startswith('HG') and header.startswith('\0'):
|
|
|
fh = changegroup.headerlessfixup(fh, header)
|
|
|
header = "HG10"
|
|
|
alg = 'UN'
|
|
|
elif vfs:
|
|
|
fname = vfs.join(fname)
|
|
|
|
|
|
magic, version = header[0:2], header[2:4]
|
|
|
|
|
|
if magic != 'HG':
|
|
|
raise util.Abort(_('%s: not a Mercurial bundle') % fname)
|
|
|
if version == '10':
|
|
|
if alg is None:
|
|
|
alg = changegroup.readexactly(fh, 2)
|
|
|
return changegroup.unbundle10(fh, alg)
|
|
|
elif version == '2X':
|
|
|
return bundle2.unbundle20(ui, fh, header=magic + version)
|
|
|
else:
|
|
|
raise util.Abort(_('%s: unknown bundle version %s') % (fname, version))
|
|
|
|
|
|
|
|
|
class pushoperation(object):
|
|
|
"""A object that represent a single push operation
|
|
|
|
|
|
It purpose is to carry push related state and very common operation.
|
|
|
|
|
|
A new should be created at the beginning of each push and discarded
|
|
|
afterward.
|
|
|
"""
|
|
|
|
|
|
def __init__(self, repo, remote, force=False, revs=None, newbranch=False):
|
|
|
# repo we push from
|
|
|
self.repo = repo
|
|
|
self.ui = repo.ui
|
|
|
# repo we push to
|
|
|
self.remote = remote
|
|
|
# force option provided
|
|
|
self.force = force
|
|
|
# revs to be pushed (None is "all")
|
|
|
self.revs = revs
|
|
|
# allow push of new branch
|
|
|
self.newbranch = newbranch
|
|
|
# did a local lock get acquired?
|
|
|
self.locallocked = None
|
|
|
# step already performed
|
|
|
# (used to check what steps have been already performed through bundle2)
|
|
|
self.stepsdone = set()
|
|
|
# Integer version of the push result
|
|
|
# - None means nothing to push
|
|
|
# - 0 means HTTP error
|
|
|
# - 1 means we pushed and remote head count is unchanged *or*
|
|
|
# we have outgoing changesets but refused to push
|
|
|
# - other values as described by addchangegroup()
|
|
|
self.ret = None
|
|
|
# discover.outgoing object (contains common and outgoing data)
|
|
|
self.outgoing = None
|
|
|
# all remote heads before the push
|
|
|
self.remoteheads = None
|
|
|
# testable as a boolean indicating if any nodes are missing locally.
|
|
|
self.incoming = None
|
|
|
# set of all heads common after changeset bundle push
|
|
|
self.commonheads = None
|
|
|
|
|
|
def push(repo, remote, force=False, revs=None, newbranch=False):
|
|
|
'''Push outgoing changesets (limited by revs) from a local
|
|
|
repository to remote. Return an integer:
|
|
|
- None means nothing to push
|
|
|
- 0 means HTTP error
|
|
|
- 1 means we pushed and remote head count is unchanged *or*
|
|
|
we have outgoing changesets but refused to push
|
|
|
- other values as described by addchangegroup()
|
|
|
'''
|
|
|
pushop = pushoperation(repo, remote, force, revs, newbranch)
|
|
|
if pushop.remote.local():
|
|
|
missing = (set(pushop.repo.requirements)
|
|
|
- pushop.remote.local().supported)
|
|
|
if missing:
|
|
|
msg = _("required features are not"
|
|
|
" supported in the destination:"
|
|
|
" %s") % (', '.join(sorted(missing)))
|
|
|
raise util.Abort(msg)
|
|
|
|
|
|
# there are two ways to push to remote repo:
|
|
|
#
|
|
|
# addchangegroup assumes local user can lock remote
|
|
|
# repo (local filesystem, old ssh servers).
|
|
|
#
|
|
|
# unbundle assumes local user cannot lock remote repo (new ssh
|
|
|
# servers, http servers).
|
|
|
|
|
|
if not pushop.remote.canpush():
|
|
|
raise util.Abort(_("destination does not support push"))
|
|
|
# get local lock as we might write phase data
|
|
|
locallock = None
|
|
|
try:
|
|
|
locallock = pushop.repo.lock()
|
|
|
pushop.locallocked = True
|
|
|
except IOError, err:
|
|
|
pushop.locallocked = False
|
|
|
if err.errno != errno.EACCES:
|
|
|
raise
|
|
|
# source repo cannot be locked.
|
|
|
# We do not abort the push, but just disable the local phase
|
|
|
# synchronisation.
|
|
|
msg = 'cannot lock source repository: %s\n' % err
|
|
|
pushop.ui.debug(msg)
|
|
|
try:
|
|
|
pushop.repo.checkpush(pushop)
|
|
|
lock = None
|
|
|
unbundle = pushop.remote.capable('unbundle')
|
|
|
if not unbundle:
|
|
|
lock = pushop.remote.lock()
|
|
|
try:
|
|
|
_pushdiscovery(pushop)
|
|
|
if (pushop.repo.ui.configbool('experimental', 'bundle2-exp',
|
|
|
False)
|
|
|
and pushop.remote.capable('bundle2-exp')):
|
|
|
_pushbundle2(pushop)
|
|
|
_pushchangeset(pushop)
|
|
|
_pushcomputecommonheads(pushop)
|
|
|
_pushsyncphase(pushop)
|
|
|
_pushobsolete(pushop)
|
|
|
finally:
|
|
|
if lock is not None:
|
|
|
lock.release()
|
|
|
finally:
|
|
|
if locallock is not None:
|
|
|
locallock.release()
|
|
|
|
|
|
_pushbookmark(pushop)
|
|
|
return pushop.ret
|
|
|
|
|
|
def _pushdiscovery(pushop):
|
|
|
# discovery
|
|
|
unfi = pushop.repo.unfiltered()
|
|
|
fci = discovery.findcommonincoming
|
|
|
commoninc = fci(unfi, pushop.remote, force=pushop.force)
|
|
|
common, inc, remoteheads = commoninc
|
|
|
fco = discovery.findcommonoutgoing
|
|
|
outgoing = fco(unfi, pushop.remote, onlyheads=pushop.revs,
|
|
|
commoninc=commoninc, force=pushop.force)
|
|
|
pushop.outgoing = outgoing
|
|
|
pushop.remoteheads = remoteheads
|
|
|
pushop.incoming = inc
|
|
|
|
|
|
def _pushcheckoutgoing(pushop):
|
|
|
outgoing = pushop.outgoing
|
|
|
unfi = pushop.repo.unfiltered()
|
|
|
if not outgoing.missing:
|
|
|
# nothing to push
|
|
|
scmutil.nochangesfound(unfi.ui, unfi, outgoing.excluded)
|
|
|
return False
|
|
|
# something to push
|
|
|
if not pushop.force:
|
|
|
# if repo.obsstore == False --> no obsolete
|
|
|
# then, save the iteration
|
|
|
if unfi.obsstore:
|
|
|
# this message are here for 80 char limit reason
|
|
|
mso = _("push includes obsolete changeset: %s!")
|
|
|
mst = "push includes %s changeset: %s!"
|
|
|
# plain versions for i18n tool to detect them
|
|
|
_("push includes unstable changeset: %s!")
|
|
|
_("push includes bumped changeset: %s!")
|
|
|
_("push includes divergent changeset: %s!")
|
|
|
# If we are to push if there is at least one
|
|
|
# obsolete or unstable changeset in missing, at
|
|
|
# least one of the missinghead will be obsolete or
|
|
|
# unstable. So checking heads only is ok
|
|
|
for node in outgoing.missingheads:
|
|
|
ctx = unfi[node]
|
|
|
if ctx.obsolete():
|
|
|
raise util.Abort(mso % ctx)
|
|
|
elif ctx.troubled():
|
|
|
raise util.Abort(_(mst)
|
|
|
% (ctx.troubles()[0],
|
|
|
ctx))
|
|
|
newbm = pushop.ui.configlist('bookmarks', 'pushing')
|
|
|
discovery.checkheads(unfi, pushop.remote, outgoing,
|
|
|
pushop.remoteheads,
|
|
|
pushop.newbranch,
|
|
|
bool(pushop.incoming),
|
|
|
newbm)
|
|
|
return True
|
|
|
|
|
|
def _pushb2ctx(pushop, bundler):
|
|
|
"""handle changegroup push through bundle2
|
|
|
|
|
|
addchangegroup result is stored in the ``pushop.ret`` attribute.
|
|
|
"""
|
|
|
if 'changesets' in pushop.stepsdone:
|
|
|
return
|
|
|
pushop.stepsdone.add('changesets')
|
|
|
# Send known heads to the server for race detection.
|
|
|
pushop.stepsdone.add('changesets')
|
|
|
if not _pushcheckoutgoing(pushop):
|
|
|
return
|
|
|
pushop.repo.prepushoutgoinghooks(pushop.repo,
|
|
|
pushop.remote,
|
|
|
pushop.outgoing)
|
|
|
if not pushop.force:
|
|
|
bundler.newpart('B2X:CHECK:HEADS', data=iter(pushop.remoteheads))
|
|
|
cg = changegroup.getlocalbundle(pushop.repo, 'push', pushop.outgoing)
|
|
|
cgpart = bundler.newpart('B2X:CHANGEGROUP', data=cg.getchunks())
|
|
|
def handlereply(op):
|
|
|
"""extract addchangroup returns from server reply"""
|
|
|
cgreplies = op.records.getreplies(cgpart.id)
|
|
|
assert len(cgreplies['changegroup']) == 1
|
|
|
pushop.ret = cgreplies['changegroup'][0]['return']
|
|
|
return handlereply
|
|
|
|
|
|
# list of function that may decide to add parts to an outgoing bundle2
|
|
|
bundle2partsgenerators = [_pushb2ctx]
|
|
|
|
|
|
def _pushbundle2(pushop):
|
|
|
"""push data to the remote using bundle2
|
|
|
|
|
|
The only currently supported type of data is changegroup but this will
|
|
|
evolve in the future."""
|
|
|
bundler = bundle2.bundle20(pushop.ui, bundle2.bundle2caps(pushop.remote))
|
|
|
# create reply capability
|
|
|
capsblob = bundle2.encodecaps(pushop.repo.bundle2caps)
|
|
|
bundler.newpart('b2x:replycaps', data=capsblob)
|
|
|
replyhandlers = []
|
|
|
for partgen in bundle2partsgenerators:
|
|
|
ret = partgen(pushop, bundler)
|
|
|
if callable(ret):
|
|
|
replyhandlers.append(ret)
|
|
|
# do not push if nothing to push
|
|
|
if bundler.nbparts <= 1:
|
|
|
return
|
|
|
stream = util.chunkbuffer(bundler.getchunks())
|
|
|
try:
|
|
|
reply = pushop.remote.unbundle(stream, ['force'], 'push')
|
|
|
except error.BundleValueError, exc:
|
|
|
raise util.Abort('missing support for %s' % exc)
|
|
|
try:
|
|
|
op = bundle2.processbundle(pushop.repo, reply)
|
|
|
except error.BundleValueError, exc:
|
|
|
raise util.Abort('missing support for %s' % exc)
|
|
|
for rephand in replyhandlers:
|
|
|
rephand(op)
|
|
|
|
|
|
def _pushchangeset(pushop):
|
|
|
"""Make the actual push of changeset bundle to remote repo"""
|
|
|
if 'changesets' in pushop.stepsdone:
|
|
|
return
|
|
|
pushop.stepsdone.add('changesets')
|
|
|
if not _pushcheckoutgoing(pushop):
|
|
|
return
|
|
|
pushop.repo.prepushoutgoinghooks(pushop.repo,
|
|
|
pushop.remote,
|
|
|
pushop.outgoing)
|
|
|
outgoing = pushop.outgoing
|
|
|
unbundle = pushop.remote.capable('unbundle')
|
|
|
# TODO: get bundlecaps from remote
|
|
|
bundlecaps = None
|
|
|
# create a changegroup from local
|
|
|
if pushop.revs is None and not (outgoing.excluded
|
|
|
or pushop.repo.changelog.filteredrevs):
|
|
|
# push everything,
|
|
|
# use the fast path, no race possible on push
|
|
|
bundler = changegroup.bundle10(pushop.repo, bundlecaps)
|
|
|
cg = changegroup.getsubset(pushop.repo,
|
|
|
outgoing,
|
|
|
bundler,
|
|
|
'push',
|
|
|
fastpath=True)
|
|
|
else:
|
|
|
cg = changegroup.getlocalbundle(pushop.repo, 'push', outgoing,
|
|
|
bundlecaps)
|
|
|
|
|
|
# apply changegroup to remote
|
|
|
if unbundle:
|
|
|
# local repo finds heads on server, finds out what
|
|
|
# revs it must push. once revs transferred, if server
|
|
|
# finds it has different heads (someone else won
|
|
|
# commit/push race), server aborts.
|
|
|
if pushop.force:
|
|
|
remoteheads = ['force']
|
|
|
else:
|
|
|
remoteheads = pushop.remoteheads
|
|
|
# ssh: return remote's addchangegroup()
|
|
|
# http: return remote's addchangegroup() or 0 for error
|
|
|
pushop.ret = pushop.remote.unbundle(cg, remoteheads,
|
|
|
pushop.repo.url())
|
|
|
else:
|
|
|
# we return an integer indicating remote head count
|
|
|
# change
|
|
|
pushop.ret = pushop.remote.addchangegroup(cg, 'push', pushop.repo.url())
|
|
|
|
|
|
def _pushcomputecommonheads(pushop):
|
|
|
unfi = pushop.repo.unfiltered()
|
|
|
if pushop.ret:
|
|
|
# push succeed, synchronize target of the push
|
|
|
cheads = pushop.outgoing.missingheads
|
|
|
elif pushop.revs is None:
|
|
|
# All out push fails. synchronize all common
|
|
|
cheads = pushop.outgoing.commonheads
|
|
|
else:
|
|
|
# I want cheads = heads(::missingheads and ::commonheads)
|
|
|
# (missingheads is revs with secret changeset filtered out)
|
|
|
#
|
|
|
# This can be expressed as:
|
|
|
# cheads = ( (missingheads and ::commonheads)
|
|
|
# + (commonheads and ::missingheads))"
|
|
|
# )
|
|
|
#
|
|
|
# while trying to push we already computed the following:
|
|
|
# common = (::commonheads)
|
|
|
# missing = ((commonheads::missingheads) - commonheads)
|
|
|
#
|
|
|
# We can pick:
|
|
|
# * missingheads part of common (::commonheads)
|
|
|
common = set(pushop.outgoing.common)
|
|
|
nm = pushop.repo.changelog.nodemap
|
|
|
cheads = [node for node in pushop.revs if nm[node] in common]
|
|
|
# and
|
|
|
# * commonheads parents on missing
|
|
|
revset = unfi.set('%ln and parents(roots(%ln))',
|
|
|
pushop.outgoing.commonheads,
|
|
|
pushop.outgoing.missing)
|
|
|
cheads.extend(c.node() for c in revset)
|
|
|
pushop.commonheads = cheads
|
|
|
|
|
|
def _pushsyncphase(pushop):
|
|
|
"""synchronise phase information locally and remotely"""
|
|
|
unfi = pushop.repo.unfiltered()
|
|
|
cheads = pushop.commonheads
|
|
|
# even when we don't push, exchanging phase data is useful
|
|
|
remotephases = pushop.remote.listkeys('phases')
|
|
|
if (pushop.ui.configbool('ui', '_usedassubrepo', False)
|
|
|
and remotephases # server supports phases
|
|
|
and pushop.ret is None # nothing was pushed
|
|
|
and remotephases.get('publishing', False)):
|
|
|
# When:
|
|
|
# - this is a subrepo push
|
|
|
# - and remote support phase
|
|
|
# - and no changeset was pushed
|
|
|
# - and remote is publishing
|
|
|
# We may be in issue 3871 case!
|
|
|
# We drop the possible phase synchronisation done by
|
|
|
# courtesy to publish changesets possibly locally draft
|
|
|
# on the remote.
|
|
|
remotephases = {'publishing': 'True'}
|
|
|
if not remotephases: # old server or public only reply from non-publishing
|
|
|
_localphasemove(pushop, cheads)
|
|
|
# don't push any phase data as there is nothing to push
|
|
|
else:
|
|
|
ana = phases.analyzeremotephases(pushop.repo, cheads,
|
|
|
remotephases)
|
|
|
pheads, droots = ana
|
|
|
### Apply remote phase on local
|
|
|
if remotephases.get('publishing', False):
|
|
|
_localphasemove(pushop, cheads)
|
|
|
else: # publish = False
|
|
|
_localphasemove(pushop, pheads)
|
|
|
_localphasemove(pushop, cheads, phases.draft)
|
|
|
### Apply local phase on remote
|
|
|
|
|
|
# Get the list of all revs draft on remote by public here.
|
|
|
# XXX Beware that revset break if droots is not strictly
|
|
|
# XXX root we may want to ensure it is but it is costly
|
|
|
outdated = unfi.set('heads((%ln::%ln) and public())',
|
|
|
droots, cheads)
|
|
|
|
|
|
b2caps = bundle2.bundle2caps(pushop.remote)
|
|
|
if 'b2x:pushkey' in b2caps:
|
|
|
# server supports bundle2, let's do a batched push through it
|
|
|
#
|
|
|
# This will eventually be unified with the changesets bundle2 push
|
|
|
bundler = bundle2.bundle20(pushop.ui, b2caps)
|
|
|
capsblob = bundle2.encodecaps(pushop.repo.bundle2caps)
|
|
|
bundler.newpart('b2x:replycaps', data=capsblob)
|
|
|
part2node = []
|
|
|
enc = pushkey.encode
|
|
|
for newremotehead in outdated:
|
|
|
part = bundler.newpart('b2x:pushkey')
|
|
|
part.addparam('namespace', enc('phases'))
|
|
|
part.addparam('key', enc(newremotehead.hex()))
|
|
|
part.addparam('old', enc(str(phases.draft)))
|
|
|
part.addparam('new', enc(str(phases.public)))
|
|
|
part2node.append((part.id, newremotehead))
|
|
|
stream = util.chunkbuffer(bundler.getchunks())
|
|
|
try:
|
|
|
reply = pushop.remote.unbundle(stream, ['force'], 'push')
|
|
|
op = bundle2.processbundle(pushop.repo, reply)
|
|
|
except error.BundleValueError, exc:
|
|
|
raise util.Abort('missing support for %s' % exc)
|
|
|
for partid, node in part2node:
|
|
|
partrep = op.records.getreplies(partid)
|
|
|
results = partrep['pushkey']
|
|
|
assert len(results) <= 1
|
|
|
msg = None
|
|
|
if not results:
|
|
|
msg = _('server ignored update of %s to public!\n') % node
|
|
|
elif not int(results[0]['return']):
|
|
|
msg = _('updating %s to public failed!\n') % node
|
|
|
if msg is not None:
|
|
|
pushop.ui.warn(msg)
|
|
|
|
|
|
else:
|
|
|
# fallback to independant pushkey command
|
|
|
for newremotehead in outdated:
|
|
|
r = pushop.remote.pushkey('phases',
|
|
|
newremotehead.hex(),
|
|
|
str(phases.draft),
|
|
|
str(phases.public))
|
|
|
if not r:
|
|
|
pushop.ui.warn(_('updating %s to public failed!\n')
|
|
|
% newremotehead)
|
|
|
|
|
|
def _localphasemove(pushop, nodes, phase=phases.public):
|
|
|
"""move <nodes> to <phase> in the local source repo"""
|
|
|
if pushop.locallocked:
|
|
|
phases.advanceboundary(pushop.repo, phase, nodes)
|
|
|
else:
|
|
|
# repo is not locked, do not change any phases!
|
|
|
# Informs the user that phases should have been moved when
|
|
|
# applicable.
|
|
|
actualmoves = [n for n in nodes if phase < pushop.repo[n].phase()]
|
|
|
phasestr = phases.phasenames[phase]
|
|
|
if actualmoves:
|
|
|
pushop.ui.status(_('cannot lock source repo, skipping '
|
|
|
'local %s phase update\n') % phasestr)
|
|
|
|
|
|
def _pushobsolete(pushop):
|
|
|
"""utility function to push obsolete markers to a remote"""
|
|
|
pushop.ui.debug('try to push obsolete markers to remote\n')
|
|
|
repo = pushop.repo
|
|
|
remote = pushop.remote
|
|
|
if (obsolete._enabled and repo.obsstore and
|
|
|
'obsolete' in remote.listkeys('namespaces')):
|
|
|
rslts = []
|
|
|
remotedata = repo.listkeys('obsolete')
|
|
|
for key in sorted(remotedata, reverse=True):
|
|
|
# reverse sort to ensure we end with dump0
|
|
|
data = remotedata[key]
|
|
|
rslts.append(remote.pushkey('obsolete', key, '', data))
|
|
|
if [r for r in rslts if not r]:
|
|
|
msg = _('failed to push some obsolete markers!\n')
|
|
|
repo.ui.warn(msg)
|
|
|
|
|
|
def _pushbookmark(pushop):
|
|
|
"""Update bookmark position on remote"""
|
|
|
ui = pushop.ui
|
|
|
repo = pushop.repo.unfiltered()
|
|
|
remote = pushop.remote
|
|
|
ui.debug("checking for updated bookmarks\n")
|
|
|
revnums = map(repo.changelog.rev, pushop.revs or [])
|
|
|
ancestors = [a for a in repo.changelog.ancestors(revnums, inclusive=True)]
|
|
|
(addsrc, adddst, advsrc, advdst, diverge, differ, invalid
|
|
|
) = bookmarks.compare(repo, repo._bookmarks, remote.listkeys('bookmarks'),
|
|
|
srchex=hex)
|
|
|
|
|
|
for b, scid, dcid in advsrc:
|
|
|
if ancestors and repo[scid].rev() not in ancestors:
|
|
|
continue
|
|
|
if remote.pushkey('bookmarks', b, dcid, scid):
|
|
|
ui.status(_("updating bookmark %s\n") % b)
|
|
|
else:
|
|
|
ui.warn(_('updating bookmark %s failed!\n') % b)
|
|
|
|
|
|
class pulloperation(object):
|
|
|
"""A object that represent a single pull operation
|
|
|
|
|
|
It purpose is to carry push related state and very common operation.
|
|
|
|
|
|
A new should be created at the beginning of each pull and discarded
|
|
|
afterward.
|
|
|
"""
|
|
|
|
|
|
def __init__(self, repo, remote, heads=None, force=False):
|
|
|
# repo we pull into
|
|
|
self.repo = repo
|
|
|
# repo we pull from
|
|
|
self.remote = remote
|
|
|
# revision we try to pull (None is "all")
|
|
|
self.heads = heads
|
|
|
# do we force pull?
|
|
|
self.force = force
|
|
|
# the name the pull transaction
|
|
|
self._trname = 'pull\n' + util.hidepassword(remote.url())
|
|
|
# hold the transaction once created
|
|
|
self._tr = None
|
|
|
# set of common changeset between local and remote before pull
|
|
|
self.common = None
|
|
|
# set of pulled head
|
|
|
self.rheads = None
|
|
|
# list of missing changeset to fetch remotely
|
|
|
self.fetch = None
|
|
|
# result of changegroup pulling (used as return code by pull)
|
|
|
self.cgresult = None
|
|
|
# list of step remaining todo (related to future bundle2 usage)
|
|
|
self.todosteps = set(['changegroup', 'phases', 'obsmarkers'])
|
|
|
|
|
|
@util.propertycache
|
|
|
def pulledsubset(self):
|
|
|
"""heads of the set of changeset target by the pull"""
|
|
|
# compute target subset
|
|
|
if self.heads is None:
|
|
|
# We pulled every thing possible
|
|
|
# sync on everything common
|
|
|
c = set(self.common)
|
|
|
ret = list(self.common)
|
|
|
for n in self.rheads:
|
|
|
if n not in c:
|
|
|
ret.append(n)
|
|
|
return ret
|
|
|
else:
|
|
|
# We pulled a specific subset
|
|
|
# sync on this subset
|
|
|
return self.heads
|
|
|
|
|
|
def gettransaction(self):
|
|
|
"""get appropriate pull transaction, creating it if needed"""
|
|
|
if self._tr is None:
|
|
|
self._tr = self.repo.transaction(self._trname)
|
|
|
return self._tr
|
|
|
|
|
|
def closetransaction(self):
|
|
|
"""close transaction if created"""
|
|
|
if self._tr is not None:
|
|
|
self._tr.close()
|
|
|
|
|
|
def releasetransaction(self):
|
|
|
"""release transaction if created"""
|
|
|
if self._tr is not None:
|
|
|
self._tr.release()
|
|
|
|
|
|
def pull(repo, remote, heads=None, force=False):
|
|
|
pullop = pulloperation(repo, remote, heads, force)
|
|
|
if pullop.remote.local():
|
|
|
missing = set(pullop.remote.requirements) - pullop.repo.supported
|
|
|
if missing:
|
|
|
msg = _("required features are not"
|
|
|
" supported in the destination:"
|
|
|
" %s") % (', '.join(sorted(missing)))
|
|
|
raise util.Abort(msg)
|
|
|
|
|
|
lock = pullop.repo.lock()
|
|
|
try:
|
|
|
_pulldiscovery(pullop)
|
|
|
if (pullop.repo.ui.configbool('experimental', 'bundle2-exp', False)
|
|
|
and pullop.remote.capable('bundle2-exp')):
|
|
|
_pullbundle2(pullop)
|
|
|
if 'changegroup' in pullop.todosteps:
|
|
|
_pullchangeset(pullop)
|
|
|
if 'phases' in pullop.todosteps:
|
|
|
_pullphase(pullop)
|
|
|
if 'obsmarkers' in pullop.todosteps:
|
|
|
_pullobsolete(pullop)
|
|
|
pullop.closetransaction()
|
|
|
finally:
|
|
|
pullop.releasetransaction()
|
|
|
lock.release()
|
|
|
|
|
|
return pullop.cgresult
|
|
|
|
|
|
def _pulldiscovery(pullop):
|
|
|
"""discovery phase for the pull
|
|
|
|
|
|
Current handle changeset discovery only, will change handle all discovery
|
|
|
at some point."""
|
|
|
tmp = discovery.findcommonincoming(pullop.repo.unfiltered(),
|
|
|
pullop.remote,
|
|
|
heads=pullop.heads,
|
|
|
force=pullop.force)
|
|
|
pullop.common, pullop.fetch, pullop.rheads = tmp
|
|
|
|
|
|
def _pullbundle2(pullop):
|
|
|
"""pull data using bundle2
|
|
|
|
|
|
For now, the only supported data are changegroup."""
|
|
|
remotecaps = bundle2.bundle2caps(pullop.remote)
|
|
|
kwargs = {'bundlecaps': caps20to10(pullop.repo)}
|
|
|
# pulling changegroup
|
|
|
pullop.todosteps.remove('changegroup')
|
|
|
|
|
|
kwargs['common'] = pullop.common
|
|
|
kwargs['heads'] = pullop.heads or pullop.rheads
|
|
|
if 'b2x:listkeys' in remotecaps:
|
|
|
kwargs['listkeys'] = ['phase']
|
|
|
if not pullop.fetch:
|
|
|
pullop.repo.ui.status(_("no changes found\n"))
|
|
|
pullop.cgresult = 0
|
|
|
else:
|
|
|
if pullop.heads is None and list(pullop.common) == [nullid]:
|
|
|
pullop.repo.ui.status(_("requesting all changes\n"))
|
|
|
_pullbundle2extraprepare(pullop, kwargs)
|
|
|
if kwargs.keys() == ['format']:
|
|
|
return # nothing to pull
|
|
|
bundle = pullop.remote.getbundle('pull', **kwargs)
|
|
|
try:
|
|
|
op = bundle2.processbundle(pullop.repo, bundle, pullop.gettransaction)
|
|
|
except error.BundleValueError, exc:
|
|
|
raise util.Abort('missing support for %s' % exc)
|
|
|
|
|
|
if pullop.fetch:
|
|
|
assert len(op.records['changegroup']) == 1
|
|
|
pullop.cgresult = op.records['changegroup'][0]['return']
|
|
|
|
|
|
# processing phases change
|
|
|
for namespace, value in op.records['listkeys']:
|
|
|
if namespace == 'phases':
|
|
|
_pullapplyphases(pullop, value)
|
|
|
|
|
|
def _pullbundle2extraprepare(pullop, kwargs):
|
|
|
"""hook function so that extensions can extend the getbundle call"""
|
|
|
pass
|
|
|
|
|
|
def _pullchangeset(pullop):
|
|
|
"""pull changeset from unbundle into the local repo"""
|
|
|
# We delay the open of the transaction as late as possible so we
|
|
|
# don't open transaction for nothing or you break future useful
|
|
|
# rollback call
|
|
|
pullop.todosteps.remove('changegroup')
|
|
|
if not pullop.fetch:
|
|
|
pullop.repo.ui.status(_("no changes found\n"))
|
|
|
pullop.cgresult = 0
|
|
|
return
|
|
|
pullop.gettransaction()
|
|
|
if pullop.heads is None and list(pullop.common) == [nullid]:
|
|
|
pullop.repo.ui.status(_("requesting all changes\n"))
|
|
|
elif pullop.heads is None and pullop.remote.capable('changegroupsubset'):
|
|
|
# issue1320, avoid a race if remote changed after discovery
|
|
|
pullop.heads = pullop.rheads
|
|
|
|
|
|
if pullop.remote.capable('getbundle'):
|
|
|
# TODO: get bundlecaps from remote
|
|
|
cg = pullop.remote.getbundle('pull', common=pullop.common,
|
|
|
heads=pullop.heads or pullop.rheads)
|
|
|
elif pullop.heads is None:
|
|
|
cg = pullop.remote.changegroup(pullop.fetch, 'pull')
|
|
|
elif not pullop.remote.capable('changegroupsubset'):
|
|
|
raise util.Abort(_("partial pull cannot be done because "
|
|
|
"other repository doesn't support "
|
|
|
"changegroupsubset."))
|
|
|
else:
|
|
|
cg = pullop.remote.changegroupsubset(pullop.fetch, pullop.heads, 'pull')
|
|
|
pullop.cgresult = changegroup.addchangegroup(pullop.repo, cg, 'pull',
|
|
|
pullop.remote.url())
|
|
|
|
|
|
def _pullphase(pullop):
|
|
|
# Get remote phases data from remote
|
|
|
remotephases = pullop.remote.listkeys('phases')
|
|
|
_pullapplyphases(pullop, remotephases)
|
|
|
|
|
|
def _pullapplyphases(pullop, remotephases):
|
|
|
"""apply phase movement from observed remote state"""
|
|
|
pullop.todosteps.remove('phases')
|
|
|
publishing = bool(remotephases.get('publishing', False))
|
|
|
if remotephases and not publishing:
|
|
|
# remote is new and unpublishing
|
|
|
pheads, _dr = phases.analyzeremotephases(pullop.repo,
|
|
|
pullop.pulledsubset,
|
|
|
remotephases)
|
|
|
phases.advanceboundary(pullop.repo, phases.public, pheads)
|
|
|
phases.advanceboundary(pullop.repo, phases.draft,
|
|
|
pullop.pulledsubset)
|
|
|
else:
|
|
|
# Remote is old or publishing all common changesets
|
|
|
# should be seen as public
|
|
|
phases.advanceboundary(pullop.repo, phases.public,
|
|
|
pullop.pulledsubset)
|
|
|
|
|
|
def _pullobsolete(pullop):
|
|
|
"""utility function to pull obsolete markers from a remote
|
|
|
|
|
|
The `gettransaction` is function that return the pull transaction, creating
|
|
|
one if necessary. We return the transaction to inform the calling code that
|
|
|
a new transaction have been created (when applicable).
|
|
|
|
|
|
Exists mostly to allow overriding for experimentation purpose"""
|
|
|
pullop.todosteps.remove('obsmarkers')
|
|
|
tr = None
|
|
|
if obsolete._enabled:
|
|
|
pullop.repo.ui.debug('fetching remote obsolete markers\n')
|
|
|
remoteobs = pullop.remote.listkeys('obsolete')
|
|
|
if 'dump0' in remoteobs:
|
|
|
tr = pullop.gettransaction()
|
|
|
for key in sorted(remoteobs, reverse=True):
|
|
|
if key.startswith('dump'):
|
|
|
data = base85.b85decode(remoteobs[key])
|
|
|
pullop.repo.obsstore.mergemarkers(tr, data)
|
|
|
pullop.repo.invalidatevolatilesets()
|
|
|
return tr
|
|
|
|
|
|
def caps20to10(repo):
|
|
|
"""return a set with appropriate options to use bundle20 during getbundle"""
|
|
|
caps = set(['HG2X'])
|
|
|
capsblob = bundle2.encodecaps(repo.bundle2caps)
|
|
|
caps.add('bundle2=' + urllib.quote(capsblob))
|
|
|
return caps
|
|
|
|
|
|
def getbundle(repo, source, heads=None, common=None, bundlecaps=None,
|
|
|
**kwargs):
|
|
|
"""return a full bundle (with potentially multiple kind of parts)
|
|
|
|
|
|
Could be a bundle HG10 or a bundle HG2X depending on bundlecaps
|
|
|
passed. For now, the bundle can contain only changegroup, but this will
|
|
|
changes when more part type will be available for bundle2.
|
|
|
|
|
|
This is different from changegroup.getbundle that only returns an HG10
|
|
|
changegroup bundle. They may eventually get reunited in the future when we
|
|
|
have a clearer idea of the API we what to query different data.
|
|
|
|
|
|
The implementation is at a very early stage and will get massive rework
|
|
|
when the API of bundle is refined.
|
|
|
"""
|
|
|
cg = None
|
|
|
if kwargs.get('cg', True):
|
|
|
# build changegroup bundle here.
|
|
|
cg = changegroup.getbundle(repo, source, heads=heads,
|
|
|
common=common, bundlecaps=bundlecaps)
|
|
|
elif 'HG2X' not in bundlecaps:
|
|
|
raise ValueError(_('request for bundle10 must include changegroup'))
|
|
|
if bundlecaps is None or 'HG2X' not in bundlecaps:
|
|
|
if kwargs:
|
|
|
raise ValueError(_('unsupported getbundle arguments: %s')
|
|
|
% ', '.join(sorted(kwargs.keys())))
|
|
|
return cg
|
|
|
# very crude first implementation,
|
|
|
# the bundle API will change and the generation will be done lazily.
|
|
|
b2caps = {}
|
|
|
for bcaps in bundlecaps:
|
|
|
if bcaps.startswith('bundle2='):
|
|
|
blob = urllib.unquote(bcaps[len('bundle2='):])
|
|
|
b2caps.update(bundle2.decodecaps(blob))
|
|
|
bundler = bundle2.bundle20(repo.ui, b2caps)
|
|
|
if cg:
|
|
|
bundler.newpart('b2x:changegroup', data=cg.getchunks())
|
|
|
listkeys = kwargs.get('listkeys', ())
|
|
|
for namespace in listkeys:
|
|
|
part = bundler.newpart('b2x:listkeys')
|
|
|
part.addparam('namespace', namespace)
|
|
|
keys = repo.listkeys(namespace).items()
|
|
|
part.data = pushkey.encodekeys(keys)
|
|
|
_getbundleextrapart(bundler, repo, source, heads=heads, common=common,
|
|
|
bundlecaps=bundlecaps, **kwargs)
|
|
|
return util.chunkbuffer(bundler.getchunks())
|
|
|
|
|
|
def _getbundleextrapart(bundler, repo, source, heads=None, common=None,
|
|
|
bundlecaps=None, **kwargs):
|
|
|
"""hook function to let extensions add parts to the requested bundle"""
|
|
|
pass
|
|
|
|
|
|
def check_heads(repo, their_heads, context):
|
|
|
"""check if the heads of a repo have been modified
|
|
|
|
|
|
Used by peer for unbundling.
|
|
|
"""
|
|
|
heads = repo.heads()
|
|
|
heads_hash = util.sha1(''.join(sorted(heads))).digest()
|
|
|
if not (their_heads == ['force'] or their_heads == heads or
|
|
|
their_heads == ['hashed', heads_hash]):
|
|
|
# someone else committed/pushed/unbundled while we
|
|
|
# were transferring data
|
|
|
raise error.PushRaced('repository changed while %s - '
|
|
|
'please try again' % context)
|
|
|
|
|
|
def unbundle(repo, cg, heads, source, url):
|
|
|
"""Apply a bundle to a repo.
|
|
|
|
|
|
this function makes sure the repo is locked during the application and have
|
|
|
mechanism to check that no push race occurred between the creation of the
|
|
|
bundle and its application.
|
|
|
|
|
|
If the push was raced as PushRaced exception is raised."""
|
|
|
r = 0
|
|
|
# need a transaction when processing a bundle2 stream
|
|
|
tr = None
|
|
|
lock = repo.lock()
|
|
|
try:
|
|
|
check_heads(repo, heads, 'uploading changes')
|
|
|
# push can proceed
|
|
|
if util.safehasattr(cg, 'params'):
|
|
|
try:
|
|
|
tr = repo.transaction('unbundle')
|
|
|
tr.hookargs['bundle2-exp'] = '1'
|
|
|
r = bundle2.processbundle(repo, cg, lambda: tr).reply
|
|
|
cl = repo.unfiltered().changelog
|
|
|
p = cl.writepending() and repo.root or ""
|
|
|
repo.hook('b2x-pretransactionclose', throw=True, source=source,
|
|
|
url=url, pending=p, **tr.hookargs)
|
|
|
tr.close()
|
|
|
repo.hook('b2x-transactionclose', source=source, url=url,
|
|
|
**tr.hookargs)
|
|
|
except Exception, exc:
|
|
|
exc.duringunbundle2 = True
|
|
|
raise
|
|
|
else:
|
|
|
r = changegroup.addchangegroup(repo, cg, source, url)
|
|
|
finally:
|
|
|
if tr is not None:
|
|
|
tr.release()
|
|
|
lock.release()
|
|
|
return r
|
|
|
|
