comparison mercurial/obsolete.py @ 26310:61efe9ef6ad4

obsstore: fast path to check if obsstore is empty

26309:44918682093f

The header is followed by the markers. Marker format depend of the version. See
comment associated with each format for details.

"""
import struct
import util, base85, node, parsers
import phases
from i18n import _

_pack = struct.pack

    def __len__(self):
        return len(self._all)

    def __nonzero__(self):
        return bool(self._all)

    def create(self, transaction, prec, succs=(), flag=0, parents=None,
               date=None, metadata=None):
        """obsolete: add a new obsolete marker

26310:61efe9ef6ad4

The header is followed by the markers. Marker format depend of the version. See
comment associated with each format for details.

"""
import errno, struct
import util, base85, node, parsers
import phases
from i18n import _

_pack = struct.pack

    def __len__(self):
        return len(self._all)

    def __nonzero__(self):
        if not self._cached('_all'):
            try:
                return self.svfs.stat('obsstore').st_size > 1
            except OSError as inst:
                if inst.errno != errno.ENOENT:
                    raise
                # just build an empty _all list if no obsstore exists, which
                # avoids further stat() syscalls
                pass
        return bool(self._all)

    def create(self, transaction, prec, succs=(), flag=0, parents=None,
               date=None, metadata=None):
        """obsolete: add a new obsolete marker