comparison mercurial/upgrade.py @ 42691:5535a2201ff1

upgrade: introduce a _copyrevlog method

This function copies a revlog from the old store to the new one, without
re-adding all deltas manually. This will eventually save a lot of time when some
revlog does not needs any conversions.

Code actually using this will be introduced in later changesets.

42690:095dcdd0d55c

        mandir = path[:-len('00manifest.i')]
        return manifest.manifestrevlog(repo.svfs, tree=mandir)
    else:
        #reverse of "/".join(("data", path + ".i"))
        return filelog.filelog(repo.svfs, path[5:-2])

def _clonerevlogs(ui, srcrepo, dstrepo, tr, deltareuse, forcedeltabothparents):
    """Copy revlogs between 2 repos."""
    revcount = 0
    srcsize = 0

42691:5535a2201ff1

        mandir = path[:-len('00manifest.i')]
        return manifest.manifestrevlog(repo.svfs, tree=mandir)
    else:
        #reverse of "/".join(("data", path + ".i"))
        return filelog.filelog(repo.svfs, path[5:-2])

def _copyrevlog(tr, destrepo, oldrl, unencodedname):
    """copy all relevant files for `oldrl` into `destrepo` store

    Files are copied "as is" without any transformation. The copy is performed
    without extra checks. Callers are responsible for making sure the copied
    content is compatible with format of the destination repository.
    """
    oldrl = getattr(oldrl, '_revlog', oldrl)
    newrl = _revlogfrompath(destrepo, unencodedname)
    newrl = getattr(newrl, '_revlog', newrl)

    oldvfs = oldrl.opener
    newvfs = newrl.opener
    oldindex = oldvfs.join(oldrl.indexfile)
    newindex = newvfs.join(newrl.indexfile)
    olddata = oldvfs.join(oldrl.datafile)
    newdata = newvfs.join(newrl.datafile)

    newdir = newvfs.dirname(newrl.indexfile)
    newvfs.makedirs(newdir)

    util.copyfile(oldindex, newindex)
    if oldrl.opener.exists(olddata):
        util.copyfile(olddata, newdata)

    if not (unencodedname.endswith('00changelog.i')
            or unencodedname.endswith('00manifest.i')):
        destrepo.svfs.fncache.add(unencodedname)

def _clonerevlogs(ui, srcrepo, dstrepo, tr, deltareuse, forcedeltabothparents):
    """Copy revlogs between 2 repos."""
    revcount = 0
    srcsize = 0