comparison mercurial/obsolete.py @ 17195:48c232873a54

obsolete: add seek to end of file before calling tell (issue3543)

17194:32a6a33b9a35

- M bytes: metadata as a sequence of nul-terminated strings. Each
  string contains a key and a value, separated by a color ':', without
  additional encoding. Keys cannot contain '\0' or ':' and values
  cannot contain '\0'.
"""
import struct
from mercurial import util, base85
from i18n import _

_pack = struct.pack
_unpack = struct.unpack

    def add(self, transaction, marker):
        """Add a new marker to the store"""
        if marker not in self._all:
            f = self.sopener('obsstore', 'ab')
            try:
                offset = f.tell()
                transaction.add('obsstore', offset)
                if offset == 0:
                    # new file add version header
                    f.write(_pack('>B', _fmversion))

17195:48c232873a54

- M bytes: metadata as a sequence of nul-terminated strings. Each
  string contains a key and a value, separated by a color ':', without
  additional encoding. Keys cannot contain '\0' or ':' and values
  cannot contain '\0'.
"""
import os, struct
from mercurial import util, base85
from i18n import _

_pack = struct.pack
_unpack = struct.unpack

    def add(self, transaction, marker):
        """Add a new marker to the store"""
        if marker not in self._all:
            f = self.sopener('obsstore', 'ab')
            try:
                # Whether the file's current position is at the begin or at
                # the end after opening a file for appending is implementation
                # defined. So we must seek to the end before calling tell(),
                # or we may get a zero offset for non-zero sized files on
                # some platforms (issue3543).
                f.seek(0, os.SEEK_END)
                offset = f.tell()
                transaction.add('obsstore', offset)
                if offset == 0:
                    # new file add version header
                    f.write(_pack('>B', _fmversion))