comparison mercurial/pure/parsers.py @ 47244:78230d036e5d

revlog: simplify the replace_sidedata_info code

We already know how to serialize and de-serialize and enty. So lets just do that
and modify the entry tuple directly.

This avoid having to duplicated binary operation in complicated code.

Differential Revision: https://phab.mercurial-scm.org/D10641

47243:3b04cf976c67

        inside the transaction that creates the revision `rev`.
        """
        if rev < 0:
            raise KeyError
        self._check_index(rev)
        sidedata_format = b">Qi"
        packed_size = struct.calcsize(sidedata_format)
        if rev >= self._lgt:
            packed = _pack(sidedata_format, sidedata_offset, sidedata_length)
            old = self._extra[rev - self._lgt]
            offset_flags = struct.pack(b">Q", offset_flags)
            new = offset_flags + old[8:64] + packed + old[64 + packed_size :]
            self._extra[rev - self._lgt] = new
        else:
            msg = b"cannot rewrite entries outside of this transaction"
            raise KeyError(msg)

    def _unpack_entry(self, data):
        return self.index_format.unpack(data)

    def _pack_entry(self, entry):

47244:78230d036e5d

        inside the transaction that creates the revision `rev`.
        """
        if rev < 0:
            raise KeyError
        self._check_index(rev)
        if rev < self._lgt:
            msg = b"cannot rewrite entries outside of this transaction"
            raise KeyError(msg)
        else:
            entry = list(self[rev])
            entry[0] = offset_flags
            entry[8] = sidedata_offset
            entry[9] = sidedata_length
            entry = tuple(entry)
            new = self._pack_entry(entry)
            self._extra[rev - self._lgt] = new

    def _unpack_entry(self, data):
        return self.index_format.unpack(data)

    def _pack_entry(self, entry):