comparison mercurial/repair.py @ 23898:b21c2e0ee8a3

repair: add experimental option to write bundle2 files

This adds an experimental option 'strip-bundle2-version' which causes backup
bundles to use bundle2 formatting.  Especially for generaldelta repositories,
this should provide significant performance gains for any operation that needs
to write a backup.

23897:f99a6e1865e5

# Copyright 2007 Matt Mackall
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from mercurial import changegroup, exchange, util
from mercurial.node import short, hex
from mercurial.i18n import _
import errno

def _bundle(repo, bases, heads, node, suffix, compress=True):
    """create a bundle with the specified revisions as a backup"""
    cg = changegroup.changegroupsubset(repo, bases, heads, 'strip')
    backupdir = "strip-backup"
    vfs = repo.vfs
    if not vfs.isdir(backupdir):
        vfs.mkdir(backupdir)

    allcommits = repo.set('%ls::%ls', hexbases, hexheads)
    allhashes = sorted(c.hex() for c in allcommits)
    totalhash = util.sha1(''.join(allhashes)).hexdigest()
    name = "%s/%s-%s-%s.hg" % (backupdir, short(node), totalhash[:8], suffix)

    if compress:
        bundletype = "HG10BZ"
    else:
        bundletype = "HG10UN"
    return changegroup.writebundle(repo.ui, cg, name, bundletype, vfs)

            f = vfs.open(chgrpfile, "rb")
            gen = exchange.readbundle(ui, f, chgrpfile, vfs)
            if not repo.ui.verbose:
                # silence internal shuffling chatter
                repo.ui.pushbuffer()
            changegroup.addchangegroup(repo, gen, 'strip',
                                       'bundle:' + vfs.join(chgrpfile), True)
            if not repo.ui.verbose:
                repo.ui.popbuffer()
            f.close()

        # remove undo files

23898:b21c2e0ee8a3

# Copyright 2007 Matt Mackall
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from mercurial import changegroup, exchange, util, bundle2
from mercurial.node import short, hex
from mercurial.i18n import _
import errno

def _bundle(repo, bases, heads, node, suffix, compress=True):
    """create a bundle with the specified revisions as a backup"""
    usebundle2 = (repo.ui.config('experimental', 'bundle2-exp') and
                  repo.ui.config('experimental', 'strip-bundle2-version'))
    if usebundle2:
        cgversion = repo.ui.config('experimental', 'strip-bundle2-version')
    else:
        cgversion = '01'

    cg = changegroup.changegroupsubset(repo, bases, heads, 'strip',
                                       version=cgversion)
    backupdir = "strip-backup"
    vfs = repo.vfs
    if not vfs.isdir(backupdir):
        vfs.mkdir(backupdir)

    allcommits = repo.set('%ls::%ls', hexbases, hexheads)
    allhashes = sorted(c.hex() for c in allcommits)
    totalhash = util.sha1(''.join(allhashes)).hexdigest()
    name = "%s/%s-%s-%s.hg" % (backupdir, short(node), totalhash[:8], suffix)

    if usebundle2:
        bundletype = "HG2Y"
    elif compress:
        bundletype = "HG10BZ"
    else:
        bundletype = "HG10UN"
    return changegroup.writebundle(repo.ui, cg, name, bundletype, vfs)

            f = vfs.open(chgrpfile, "rb")
            gen = exchange.readbundle(ui, f, chgrpfile, vfs)
            if not repo.ui.verbose:
                # silence internal shuffling chatter
                repo.ui.pushbuffer()
            if isinstance(gen, bundle2.unbundle20):
                tr = repo.transaction('strip')
                try:
                    bundle2.processbundle(repo, gen, lambda: tr)
                    tr.close()
                finally:
                    tr.release()
            else:
                changegroup.addchangegroup(repo, gen, 'strip',
                                           'bundle:' + vfs.join(chgrpfile),
                                           True)
            if not repo.ui.verbose:
                repo.ui.popbuffer()
            f.close()

        # remove undo files