Esempio n. 1
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def copystore(ui, srcrepo, destpath):
    '''copy files from store of srcrepo in destpath

    returns destlock
    '''
    destlock = None
    try:
        hardlink = None
        num = 0
        srcpublishing = srcrepo.ui.configbool('phases', 'publish', True)
        srcvfs = scmutil.vfs(srcrepo.sharedpath)
        dstvfs = scmutil.vfs(destpath)
        for f in srcrepo.store.copylist():
            if srcpublishing and f.endswith('phaseroots'):
                continue
            dstbase = os.path.dirname(f)
            if dstbase and not dstvfs.exists(dstbase):
                dstvfs.mkdir(dstbase)
            if srcvfs.exists(f):
                if f.endswith('data'):
                    # 'dstbase' may be empty (e.g. revlog format 0)
                    lockfile = os.path.join(dstbase, "lock")
                    # lock to avoid premature writing to the target
                    destlock = lock.lock(dstvfs, lockfile)
                hardlink, n = util.copyfiles(srcvfs.join(f), dstvfs.join(f),
                                             hardlink)
                num += n
        if hardlink:
            ui.debug("linked %d files\n" % num)
        else:
            ui.debug("copied %d files\n" % num)
        return destlock
    except:  # re-raises
        release(destlock)
        raise
Esempio n. 2
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def copystore(ui, srcrepo, destpath):
    '''copy files from store of srcrepo in destpath

    returns destlock
    '''
    destlock = None
    try:
        hardlink = None
        num = 0
        srcpublishing = srcrepo.ui.configbool('phases', 'publish', True)
        for f in srcrepo.store.copylist():
            if srcpublishing and f.endswith('phaseroots'):
                continue
            src = os.path.join(srcrepo.sharedpath, f)
            dst = os.path.join(destpath, f)
            dstbase = os.path.dirname(dst)
            if dstbase and not os.path.exists(dstbase):
                os.mkdir(dstbase)
            if os.path.exists(src):
                if dst.endswith('data'):
                    # lock to avoid premature writing to the target
                    destlock = lock.lock(os.path.join(dstbase, "lock"))
                hardlink, n = util.copyfiles(src, dst, hardlink)
                num += n
        if hardlink:
            ui.debug("linked %d files\n" % num)
        else:
            ui.debug("copied %d files\n" % num)
        return destlock
    except:
        release(destlock)
        raise
Esempio n. 3
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def copystore(ui, srcrepo, destpath):
    '''copy files from store of srcrepo in destpath

    returns destlock
    '''
    destlock = None
    try:
        hardlink = None
        num = 0
        srcpublishing = srcrepo.ui.configbool('phases', 'publish', True)
        for f in srcrepo.store.copylist():
            if srcpublishing and f.endswith('phaseroots'):
                continue
            src = os.path.join(srcrepo.sharedpath, f)
            dst = os.path.join(destpath, f)
            dstbase = os.path.dirname(dst)
            if dstbase and not os.path.exists(dstbase):
                os.mkdir(dstbase)
            if os.path.exists(src):
                if dst.endswith('data'):
                    # lock to avoid premature writing to the target
                    destlock = lock.lock(os.path.join(dstbase, "lock"))
                hardlink, n = util.copyfiles(src, dst, hardlink)
                num += n
        if hardlink:
            ui.debug("linked %d files\n" % num)
        else:
            ui.debug("copied %d files\n" % num)
        return destlock
    except:
        release(destlock)
        raise
Esempio n. 4
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def copystore(ui, srcrepo, destpath):
    """copy files from store of srcrepo in destpath

    returns destlock
    """
    destlock = None
    try:
        hardlink = None
        num = 0
        srcpublishing = srcrepo.ui.configbool("phases", "publish", True)
        srcvfs = scmutil.vfs(srcrepo.sharedpath)
        dstvfs = scmutil.vfs(destpath)
        for f in srcrepo.store.copylist():
            if srcpublishing and f.endswith("phaseroots"):
                continue
            dstbase = os.path.dirname(f)
            if dstbase and not dstvfs.exists(dstbase):
                dstvfs.mkdir(dstbase)
            if srcvfs.exists(f):
                if f.endswith("data"):
                    # 'dstbase' may be empty (e.g. revlog format 0)
                    lockfile = os.path.join(dstbase, "lock")
                    # lock to avoid premature writing to the target
                    destlock = lock.lock(dstvfs, lockfile)
                hardlink, n = util.copyfiles(srcvfs.join(f), dstvfs.join(f), hardlink)
                num += n
        if hardlink:
            ui.debug("linked %d files\n" % num)
        else:
            ui.debug("copied %d files\n" % num)
        return destlock
    except:  # re-raises
        release(destlock)
        raise
Esempio n. 5
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    def unlock(self):
        '''
        task.unlock()

        Releases the lock.
        If the lock was not held, this may remove another
        thread's lock!
        '''
        lock.release(self.filename(hash_only=True))
Esempio n. 6
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def run_thread(n):
    for i in range(100000):
        # 先要获取锁:
        lock.acquire()
        try:
            # 放心地改吧:
            change_it(n)
        finally:
            # 改完了一定要释放锁:
            lock.release()
Esempio n. 7
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def update_ledger(c, filename, ip):

    if(ip == helper.find_ip()):
        print("Same server as client")
        c.send(helper.pad_string("Server doesnt need your ledger").encode())
        if lock.locked():
            lock.release()
        return

    if lock.locked() and not lock.check_lock(ip):
        send_error(c, "Error 123: Server currently busy")
        return

    # start with the time
    start = time.time()

    # open a temporary file to store the received bytes
    file = open(filename, 'wb')
    byte = 0

    # send confirmation
    c.send(helper.pad_string("Server is ready to update its ledger").encode())

    while True:

        # receive 1024 bytes at a time and write them to a file
        bytes = c.recv(BYTES_TO_SEND)
        bytes = encryption.decrypt_using_private_key(bytes)
        file.write(bytes)
        byte += BYTES_TO_SEND

        # break infinite loop once all bytes are transferred
        if not bytes:
            break

    # close the file once transfer is complete
    file.close()

    # time and space prints
    end = time.time()
    print("Finished running download of file %s in %.2f seconds" % (filename, float(end - start)))
    print(byte, "bytes sent")

    # Release the lock if one is present
    if lock.locked() and lock.check_lock(ip):
        print("Server lock released by ", lock.return_lock())
        lock.release()
Esempio n. 8
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def copystore(ui, srcrepo, destpath):
    """copy files from store of srcrepo in destpath

    returns destlock
    """
    destlock = None
    try:
        hardlink = None
        num = 0
        closetopic = [None]

        def prog(topic, pos):
            if pos is None:
                closetopic[0] = topic
            else:
                ui.progress(topic, pos + num)

        srcpublishing = srcrepo.publishing()
        srcvfs = scmutil.vfs(srcrepo.sharedpath)
        dstvfs = scmutil.vfs(destpath)
        for f in srcrepo.store.copylist():
            if srcpublishing and f.endswith("phaseroots"):
                continue
            dstbase = os.path.dirname(f)
            if dstbase and not dstvfs.exists(dstbase):
                dstvfs.mkdir(dstbase)
            if srcvfs.exists(f):
                if f.endswith("data"):
                    # 'dstbase' may be empty (e.g. revlog format 0)
                    lockfile = os.path.join(dstbase, "lock")
                    # lock to avoid premature writing to the target
                    destlock = lock.lock(dstvfs, lockfile)
                hardlink, n = util.copyfiles(srcvfs.join(f), dstvfs.join(f), hardlink, progress=prog)
                num += n
        if hardlink:
            ui.debug("linked %d files\n" % num)
            if closetopic[0]:
                ui.progress(closetopic[0], None)
        else:
            ui.debug("copied %d files\n" % num)
            if closetopic[0]:
                ui.progress(closetopic[0], None)
        return destlock
    except:  # re-raises
        release(destlock)
        raise
Esempio n. 9
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def copystore(ui, srcrepo, destpath):
    '''copy files from store of srcrepo in destpath

    returns destlock
    '''
    destlock = None
    try:
        hardlink = None
        num = 0
        closetopic = [None]
        def prog(topic, pos):
            if pos is None:
                closetopic[0] = topic
            else:
                ui.progress(topic, pos + num)
        srcpublishing = srcrepo.publishing()
        srcvfs = scmutil.vfs(srcrepo.sharedpath)
        dstvfs = scmutil.vfs(destpath)
        for f in srcrepo.store.copylist():
            if srcpublishing and f.endswith('phaseroots'):
                continue
            dstbase = os.path.dirname(f)
            if dstbase and not dstvfs.exists(dstbase):
                dstvfs.mkdir(dstbase)
            if srcvfs.exists(f):
                if f.endswith('data'):
                    # 'dstbase' may be empty (e.g. revlog format 0)
                    lockfile = os.path.join(dstbase, "lock")
                    # lock to avoid premature writing to the target
                    destlock = lock.lock(dstvfs, lockfile)
                hardlink, n = util.copyfiles(srcvfs.join(f), dstvfs.join(f),
                                             hardlink, progress=prog)
                num += n
        if hardlink:
            ui.debug("linked %d files\n" % num)
            if closetopic[0]:
                ui.progress(closetopic[0], None)
        else:
            ui.debug("copied %d files\n" % num)
            if closetopic[0]:
                ui.progress(closetopic[0], None)
        return destlock
    except: # re-raises
        release(destlock)
        raise
Esempio n. 10
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                                _("updating to bookmark @ on branch %s\n") %
                                bn)
                    except KeyError:
                        try:
                            uprev = destrepo.branchtip('default')
                        except error.RepoLookupError:
                            uprev = destrepo.lookup('tip')
                if not status:
                    bn = destrepo[uprev].branch()
                    status = _("updating to branch %s\n") % bn
                destrepo.ui.status(status)
                _update(destrepo, uprev)
                if update in destrepo._bookmarks:
                    bookmarks.setcurrent(destrepo, update)
    finally:
        release(srclock, destlock)
        if cleandir is not None:
            shutil.rmtree(cleandir, True)
        if srcpeer is not None:
            srcpeer.close()
    return srcpeer, destpeer


def _showstats(repo, stats):
    repo.ui.status(
        _("%d files updated, %d files merged, "
          "%d files removed, %d files unresolved\n") % stats)


def updaterepo(repo, node, overwrite):
    """Update the working directory to node.
Esempio n. 11
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                        checkout = srcrepo.lookup(update)
                for test in (checkout, 'default', 'tip'):
                    if test is None:
                        continue
                    try:
                        uprev = destrepo.lookup(test)
                        break
                    except error.RepoLookupError:
                        continue
                bn = destrepo[uprev].branch()
                destrepo.ui.status(_("updating to branch %s\n") % bn)
                _update(destrepo, uprev)

        return srcrepo, destrepo
    finally:
        release(srclock, destlock)
        if dircleanup is not None:
            dircleanup.cleanup()

def _showstats(repo, stats):
    repo.ui.status(_("%d files updated, %d files merged, "
                     "%d files removed, %d files unresolved\n") % stats)

def update(repo, node):
    """update the working directory to node, merging linear changes"""
    stats = mergemod.update(repo, node, False, False, None)
    _showstats(repo, stats)
    if stats[3]:
        repo.ui.status(_("use 'hg resolve' to retry unresolved file merges\n"))
    return stats[3] > 0
Esempio n. 12
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            if update:
                dest_repo.ui.status(_("updating working directory\n"))
                if update is not True:
                    checkout = update
                for test in (checkout, 'default', 'tip'):
                    try:
                        uprev = dest_repo.lookup(test)
                        break
                    except:
                        continue
                _update(dest_repo, uprev)

        return src_repo, dest_repo
    finally:
        release(src_lock, dest_lock)
        if dir_cleanup is not None:
            dir_cleanup.cleanup()


def _showstats(repo, stats):
    stats = ((stats[0], _("updated")), (stats[1], _("merged")),
             (stats[2], _("removed")), (stats[3], _("unresolved")))
    note = ", ".join([_("%d files %s") % s for s in stats])
    repo.ui.status("%s\n" % note)


def update(repo, node):
    """update the working directory to node, merging linear changes"""
    stats = _merge.update(repo, node, False, False, None)
    _showstats(repo, stats)
Esempio n. 13
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                for test in (checkout, 'default', 'tip'):
                    if test is None:
                        continue
                    try:
                        uprev = dest_repo.lookup(test)
                        break
                    except error.RepoLookupError:
                        continue
                bn = dest_repo[uprev].branch()
                dest_repo.ui.status(_("updating to branch %s\n")
                                    % encoding.tolocal(bn))
                _update(dest_repo, uprev)

        return src_repo, dest_repo
    finally:
        release(src_lock, dest_lock)
        if dir_cleanup is not None:
            dir_cleanup.cleanup()

def _showstats(repo, stats):
    repo.ui.status(_("%d files updated, %d files merged, "
                     "%d files removed, %d files unresolved\n") % stats)

def update(repo, node):
    """update the working directory to node, merging linear changes"""
    stats = _merge.update(repo, node, False, False, None)
    _showstats(repo, stats)
    if stats[3]:
        repo.ui.status(_("use 'hg resolve' to retry unresolved file merges\n"))
    return stats[3] > 0
Esempio n. 14
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 def fuct(self):
     lock = threading.Lock()
     lock.acquire()
     self.executeSQL()
     lock.release()
Esempio n. 15
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def clone(ui, peeropts, source, dest=None, pull=False, rev=None,
          update=True, stream=False, branch=None):
    """Make a copy of an existing repository.

    Create a copy of an existing repository in a new directory.  The
    source and destination are URLs, as passed to the repository
    function.  Returns a pair of repository peers, the source and
    newly created destination.

    The location of the source is added to the new repository's
    .hg/hgrc file, as the default to be used for future pulls and
    pushes.

    If an exception is raised, the partly cloned/updated destination
    repository will be deleted.

    Arguments:

    source: repository object or URL

    dest: URL of destination repository to create (defaults to base
    name of source repository)

    pull: always pull from source repository, even in local case or if the
    server prefers streaming

    stream: stream raw data uncompressed from repository (fast over
    LAN, slow over WAN)

    rev: revision to clone up to (implies pull=True)

    update: update working directory after clone completes, if
    destination is local repository (True means update to default rev,
    anything else is treated as a revision)

    branch: branches to clone
    """

    if isinstance(source, str):
        origsource = ui.expandpath(source)
        source, branch = parseurl(origsource, branch)
        srcpeer = peer(ui, peeropts, source)
    else:
        srcpeer = source.peer() # in case we were called with a localrepo
        branch = (None, branch or [])
        origsource = source = srcpeer.url()
    rev, checkout = addbranchrevs(srcpeer, srcpeer, branch, rev)

    if dest is None:
        dest = defaultdest(source)
        if dest:
            ui.status(_("destination directory: %s\n") % dest)
    else:
        dest = ui.expandpath(dest)

    dest = util.urllocalpath(dest)
    source = util.urllocalpath(source)

    if not dest:
        raise util.Abort(_("empty destination path is not valid"))

    destvfs = scmutil.vfs(dest, expandpath=True)
    if destvfs.lexists():
        if not destvfs.isdir():
            raise util.Abort(_("destination '%s' already exists") % dest)
        elif destvfs.listdir():
            raise util.Abort(_("destination '%s' is not empty") % dest)

    srclock = destlock = cleandir = None
    srcrepo = srcpeer.local()
    try:
        abspath = origsource
        if islocal(origsource):
            abspath = os.path.abspath(util.urllocalpath(origsource))

        if islocal(dest):
            cleandir = dest

        copy = False
        if (srcrepo and srcrepo.cancopy() and islocal(dest)
            and not phases.hassecret(srcrepo)):
            copy = not pull and not rev

        if copy:
            try:
                # we use a lock here because if we race with commit, we
                # can end up with extra data in the cloned revlogs that's
                # not pointed to by changesets, thus causing verify to
                # fail
                srclock = srcrepo.lock(wait=False)
            except error.LockError:
                copy = False

        if copy:
            srcrepo.hook('preoutgoing', throw=True, source='clone')
            hgdir = os.path.realpath(os.path.join(dest, ".hg"))
            if not os.path.exists(dest):
                os.mkdir(dest)
            else:
                # only clean up directories we create ourselves
                cleandir = hgdir
            try:
                destpath = hgdir
                util.makedir(destpath, notindexed=True)
            except OSError as inst:
                if inst.errno == errno.EEXIST:
                    cleandir = None
                    raise util.Abort(_("destination '%s' already exists")
                                     % dest)
                raise

            destlock = copystore(ui, srcrepo, destpath)
            # copy bookmarks over
            srcbookmarks = srcrepo.join('bookmarks')
            dstbookmarks = os.path.join(destpath, 'bookmarks')
            if os.path.exists(srcbookmarks):
                util.copyfile(srcbookmarks, dstbookmarks)

            # Recomputing branch cache might be slow on big repos,
            # so just copy it
            def copybranchcache(fname):
                srcbranchcache = srcrepo.join('cache/%s' % fname)
                dstbranchcache = os.path.join(dstcachedir, fname)
                if os.path.exists(srcbranchcache):
                    if not os.path.exists(dstcachedir):
                        os.mkdir(dstcachedir)
                    util.copyfile(srcbranchcache, dstbranchcache)

            dstcachedir = os.path.join(destpath, 'cache')
            # In local clones we're copying all nodes, not just served
            # ones. Therefore copy all branch caches over.
            copybranchcache('branch2')
            for cachename in repoview.filtertable:
                copybranchcache('branch2-%s' % cachename)

            # we need to re-init the repo after manually copying the data
            # into it
            destpeer = peer(srcrepo, peeropts, dest)
            srcrepo.hook('outgoing', source='clone',
                          node=node.hex(node.nullid))
        else:
            try:
                destpeer = peer(srcrepo or ui, peeropts, dest, create=True)
                                # only pass ui when no srcrepo
            except OSError as inst:
                if inst.errno == errno.EEXIST:
                    cleandir = None
                    raise util.Abort(_("destination '%s' already exists")
                                     % dest)
                raise

            revs = None
            if rev:
                if not srcpeer.capable('lookup'):
                    raise util.Abort(_("src repository does not support "
                                       "revision lookup and so doesn't "
                                       "support clone by revision"))
                revs = [srcpeer.lookup(r) for r in rev]
                checkout = revs[0]
            if destpeer.local():
                if not stream:
                    if pull:
                        stream = False
                    else:
                        stream = None
                destpeer.local().clone(srcpeer, heads=revs, stream=stream)
            elif srcrepo:
                exchange.push(srcrepo, destpeer, revs=revs,
                              bookmarks=srcrepo._bookmarks.keys())
            else:
                raise util.Abort(_("clone from remote to remote not supported"))

        cleandir = None

        destrepo = destpeer.local()
        if destrepo:
            template = uimod.samplehgrcs['cloned']
            fp = destrepo.vfs("hgrc", "w", text=True)
            u = util.url(abspath)
            u.passwd = None
            defaulturl = str(u)
            fp.write(template % defaulturl)
            fp.close()

            destrepo.ui.setconfig('paths', 'default', defaulturl, 'clone')

            if update:
                if update is not True:
                    checkout = srcpeer.lookup(update)
                uprev = None
                status = None
                if checkout is not None:
                    try:
                        uprev = destrepo.lookup(checkout)
                    except error.RepoLookupError:
                        pass
                if uprev is None:
                    try:
                        uprev = destrepo._bookmarks['@']
                        update = '@'
                        bn = destrepo[uprev].branch()
                        if bn == 'default':
                            status = _("updating to bookmark @\n")
                        else:
                            status = (_("updating to bookmark @ on branch %s\n")
                                       % bn)
                    except KeyError:
                        try:
                            uprev = destrepo.branchtip('default')
                        except error.RepoLookupError:
                            uprev = destrepo.lookup('tip')
                if not status:
                    bn = destrepo[uprev].branch()
                    status = _("updating to branch %s\n") % bn
                destrepo.ui.status(status)
                _update(destrepo, uprev)
                if update in destrepo._bookmarks:
                    bookmarks.activate(destrepo, update)
    finally:
        release(srclock, destlock)
        if cleandir is not None:
            shutil.rmtree(cleandir, True)
        if srcpeer is not None:
            srcpeer.close()
    return srcpeer, destpeer
Esempio n. 16
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def clone(ui, peeropts, source, dest=None, pull=False, rev=None, update=True, stream=False, branch=None):
    """Make a copy of an existing repository.

    Create a copy of an existing repository in a new directory.  The
    source and destination are URLs, as passed to the repository
    function.  Returns a pair of repository peers, the source and
    newly created destination.

    The location of the source is added to the new repository's
    .hg/hgrc file, as the default to be used for future pulls and
    pushes.

    If an exception is raised, the partly cloned/updated destination
    repository will be deleted.

    Arguments:

    source: repository object or URL

    dest: URL of destination repository to create (defaults to base
    name of source repository)

    pull: always pull from source repository, even in local case or if the
    server prefers streaming

    stream: stream raw data uncompressed from repository (fast over
    LAN, slow over WAN)

    rev: revision to clone up to (implies pull=True)

    update: update working directory after clone completes, if
    destination is local repository (True means update to default rev,
    anything else is treated as a revision)

    branch: branches to clone
    """

    if isinstance(source, str):
        origsource = ui.expandpath(source)
        source, branch = parseurl(origsource, branch)
        srcpeer = peer(ui, peeropts, source)
    else:
        srcpeer = source.peer()  # in case we were called with a localrepo
        branch = (None, branch or [])
        origsource = source = srcpeer.url()
    rev, checkout = addbranchrevs(srcpeer, srcpeer, branch, rev)

    if dest is None:
        dest = defaultdest(source)
        if dest:
            ui.status(_("destination directory: %s\n") % dest)
    else:
        dest = ui.expandpath(dest)

    dest = util.urllocalpath(dest)
    source = util.urllocalpath(source)

    if not dest:
        raise util.Abort(_("empty destination path is not valid"))

    destvfs = scmutil.vfs(dest, expandpath=True)
    if destvfs.lexists():
        if not destvfs.isdir():
            raise util.Abort(_("destination '%s' already exists") % dest)
        elif destvfs.listdir():
            raise util.Abort(_("destination '%s' is not empty") % dest)

    srclock = destlock = cleandir = None
    srcrepo = srcpeer.local()
    try:
        abspath = origsource
        if islocal(origsource):
            abspath = os.path.abspath(util.urllocalpath(origsource))

        if islocal(dest):
            cleandir = dest

        copy = False
        if srcrepo and srcrepo.cancopy() and islocal(dest) and not phases.hassecret(srcrepo):
            copy = not pull and not rev

        if copy:
            try:
                # we use a lock here because if we race with commit, we
                # can end up with extra data in the cloned revlogs that's
                # not pointed to by changesets, thus causing verify to
                # fail
                srclock = srcrepo.lock(wait=False)
            except error.LockError:
                copy = False

        if copy:
            srcrepo.hook("preoutgoing", throw=True, source="clone")
            hgdir = os.path.realpath(os.path.join(dest, ".hg"))
            if not os.path.exists(dest):
                os.mkdir(dest)
            else:
                # only clean up directories we create ourselves
                cleandir = hgdir
            try:
                destpath = hgdir
                util.makedir(destpath, notindexed=True)
            except OSError as inst:
                if inst.errno == errno.EEXIST:
                    cleandir = None
                    raise util.Abort(_("destination '%s' already exists") % dest)
                raise

            destlock = copystore(ui, srcrepo, destpath)
            # copy bookmarks over
            srcbookmarks = srcrepo.join("bookmarks")
            dstbookmarks = os.path.join(destpath, "bookmarks")
            if os.path.exists(srcbookmarks):
                util.copyfile(srcbookmarks, dstbookmarks)

            # Recomputing branch cache might be slow on big repos,
            # so just copy it
            def copybranchcache(fname):
                srcbranchcache = srcrepo.join("cache/%s" % fname)
                dstbranchcache = os.path.join(dstcachedir, fname)
                if os.path.exists(srcbranchcache):
                    if not os.path.exists(dstcachedir):
                        os.mkdir(dstcachedir)
                    util.copyfile(srcbranchcache, dstbranchcache)

            dstcachedir = os.path.join(destpath, "cache")
            # In local clones we're copying all nodes, not just served
            # ones. Therefore copy all branch caches over.
            copybranchcache("branch2")
            for cachename in repoview.filtertable:
                copybranchcache("branch2-%s" % cachename)

            # we need to re-init the repo after manually copying the data
            # into it
            destpeer = peer(srcrepo, peeropts, dest)
            srcrepo.hook("outgoing", source="clone", node=node.hex(node.nullid))
        else:
            try:
                destpeer = peer(srcrepo or ui, peeropts, dest, create=True)
                # only pass ui when no srcrepo
            except OSError as inst:
                if inst.errno == errno.EEXIST:
                    cleandir = None
                    raise util.Abort(_("destination '%s' already exists") % dest)
                raise

            revs = None
            if rev:
                if not srcpeer.capable("lookup"):
                    raise util.Abort(
                        _(
                            "src repository does not support "
                            "revision lookup and so doesn't "
                            "support clone by revision"
                        )
                    )
                revs = [srcpeer.lookup(r) for r in rev]
                checkout = revs[0]
            if destpeer.local():
                if not stream:
                    if pull:
                        stream = False
                    else:
                        stream = None
                destpeer.local().clone(srcpeer, heads=revs, stream=stream)
            elif srcrepo:
                exchange.push(srcrepo, destpeer, revs=revs, bookmarks=srcrepo._bookmarks.keys())
            else:
                raise util.Abort(_("clone from remote to remote not supported"))

        cleandir = None

        destrepo = destpeer.local()
        if destrepo:
            template = uimod.samplehgrcs["cloned"]
            fp = destrepo.vfs("hgrc", "w", text=True)
            u = util.url(abspath)
            u.passwd = None
            defaulturl = str(u)
            fp.write(template % defaulturl)
            fp.close()

            destrepo.ui.setconfig("paths", "default", defaulturl, "clone")

            if update:
                if update is not True:
                    checkout = srcpeer.lookup(update)
                uprev = None
                status = None
                if checkout is not None:
                    try:
                        uprev = destrepo.lookup(checkout)
                    except error.RepoLookupError:
                        pass
                if uprev is None:
                    try:
                        uprev = destrepo._bookmarks["@"]
                        update = "@"
                        bn = destrepo[uprev].branch()
                        if bn == "default":
                            status = _("updating to bookmark @\n")
                        else:
                            status = _("updating to bookmark @ on branch %s\n") % bn
                    except KeyError:
                        try:
                            uprev = destrepo.branchtip("default")
                        except error.RepoLookupError:
                            uprev = destrepo.lookup("tip")
                if not status:
                    bn = destrepo[uprev].branch()
                    status = _("updating to branch %s\n") % bn
                destrepo.ui.status(status)
                _update(destrepo, uprev)
                if update in destrepo._bookmarks:
                    bookmarks.activate(destrepo, update)
    finally:
        release(srclock, destlock)
        if cleandir is not None:
            shutil.rmtree(cleandir, True)
        if srcpeer is not None:
            srcpeer.close()
    return srcpeer, destpeer