comparison mercurial/revlog.py @ 47245:de63be070e02

revlog: simplify entry update logic in `rewrite_sidedata`

We don't need to rebuild the full entry. So lets just gather the data we need
to pass to `replace_sidedata_info`.

Differential Revision: https://phab.mercurial-scm.org/D10642

47244:78230d036e5d

                    raise error.Abort(msg)

                # Apply (potential) flags to add and to remove after running
                # the sidedata helpers
                new_offset_flags = entry[0] | flags[0] & ~flags[1]
                entry = (new_offset_flags,) + entry[1:8]
                entry += (current_offset, len(serialized_sidedata))

                # the sidedata computation might have move the file cursors around
                dfh.seek(current_offset, os.SEEK_SET)
                dfh.write(serialized_sidedata)
                new_entries.append(entry)
                current_offset += len(serialized_sidedata)
                if self._docket is not None:
                    self._docket.data_end = dfh.tell()

            # rewrite the new index entries
            ifh.seek(startrev * self.index.entry_size)
            for i, e in enumerate(new_entries):
                rev = startrev + i
                self.index.replace_sidedata_info(rev, e[8], e[9], e[0])
                packed = self.index.entry_binary(rev)
                if rev == 0 and self._docket is None:
                    header = self._format_flags | self._format_version
                    header = self.index.pack_header(header)
                    packed = header + packed

47245:de63be070e02

                    raise error.Abort(msg)

                # Apply (potential) flags to add and to remove after running
                # the sidedata helpers
                new_offset_flags = entry[0] | flags[0] & ~flags[1]
                entry_update = (
                    current_offset,
                    len(serialized_sidedata),
                    new_offset_flags,
                )

                # the sidedata computation might have move the file cursors around
                dfh.seek(current_offset, os.SEEK_SET)
                dfh.write(serialized_sidedata)
                new_entries.append(entry_update)
                current_offset += len(serialized_sidedata)
                if self._docket is not None:
                    self._docket.data_end = dfh.tell()

            # rewrite the new index entries
            ifh.seek(startrev * self.index.entry_size)
            for i, e in enumerate(new_entries):
                rev = startrev + i
                self.index.replace_sidedata_info(rev, *e)
                packed = self.index.entry_binary(rev)
                if rev == 0 and self._docket is None:
                    header = self._format_flags | self._format_version
                    header = self.index.pack_header(header)
                    packed = header + packed