comparison mercurial/upgrade.py @ 43135:6e3dc1eff5c7

upgrade: allow for `sidedata` removal

If the side-date feature is removed, we need to drop them.

Differential Revision: https://phab.mercurial-scm.org/D6943

43134:75ad8af9c95e

    the dropped requirement must appear in the returned set for the upgrade
    to be allowed.
    """
    supported = {
        localrepo.SPARSEREVLOG_REQUIREMENT,
    }
    for name in compression.compengines:
        engine = compression.compengines[name]
        if engine.available() and engine.revlogheader():
            supported.add(b'exp-compression-%s' % name)

UPGRADE_ALL_REVLOGS = frozenset(
    [UPGRADE_CHANGELOG, UPGRADE_MANIFEST, UPGRADE_FILELOG]
)


def getsidedatacompanion(srcrepo, destrepo):
    return None


def matchrevlog(revlogfilter, entry):
    """check is a revlog is selected for cloning

43135:6e3dc1eff5c7

    the dropped requirement must appear in the returned set for the upgrade
    to be allowed.
    """
    supported = {
        localrepo.SPARSEREVLOG_REQUIREMENT,
        localrepo.SIDEDATA_REQUIREMENT,
    }
    for name in compression.compengines:
        engine = compression.compengines[name]
        if engine.available() and engine.revlogheader():
            supported.add(b'exp-compression-%s' % name)

UPGRADE_ALL_REVLOGS = frozenset(
    [UPGRADE_CHANGELOG, UPGRADE_MANIFEST, UPGRADE_FILELOG]
)


def getsidedatacompanion(srcrepo, dstrepo):
    sidedatacompanion = None
    removedreqs = srcrepo.requirements - dstrepo.requirements
    if localrepo.SIDEDATA_REQUIREMENT in removedreqs:

        def sidedatacompanion(rl, rev):
            rl = getattr(rl, '_revlog', rl)
            if rl.flags(rev) & revlog.REVIDX_SIDEDATA:
                return True, (), {}
            return False, (), {}

    return sidedatacompanion


def matchrevlog(revlogfilter, entry):
    """check is a revlog is selected for cloning