comparison mercurial/pure/parsers.py @ 47037:d57386e5c80e

revlog: have an explicit "pack_header" method

Having to pass the version header when retrieving the binary version of every
single entry is a bit silly. So we extract that special logic in its own method.
This also prepare the move to newer revlog format, not storing the header within
an actual entry…

Differential Revision: https://phab.mercurial-scm.org/D10510

47036:5e64c93d5f94

        r = self.index_format.unpack(data)
        if self._lgt and i == 0:
            r = (offset_type(0, gettype(r[0])),) + r[1:]
        return r

    def entry_binary(self, rev, header):
        """return the raw binary string representing a revision"""
        entry = self[rev]
        p = revlog_constants.INDEX_ENTRY_V1.pack(*entry)
        if rev == 0:
            v_fmt = revlog_constants.INDEX_HEADER
            v_bin = v_fmt.pack(header)
            p = v_bin + p[v_fmt.size :]
        return p


class IndexObject(BaseIndexObject):
    def __init__(self, data):

            self._extra[i - self._lgt] = new
        else:
            msg = b"cannot rewrite entries outside of this transaction"
            raise KeyError(msg)

    def entry_binary(self, rev, header):
        """return the raw binary string representing a revision"""
        entry = self[rev]
        p = revlog_constants.INDEX_ENTRY_V2.pack(*entry)
        if rev == 0:
            v_fmt = revlog_constants.INDEX_HEADER
            v_bin = v_fmt.pack(header)
            p = v_bin + p[v_fmt.size :]
        return p


class IndexObject2(Index2Mixin, IndexObject):
    pass

47037:d57386e5c80e

        r = self.index_format.unpack(data)
        if self._lgt and i == 0:
            r = (offset_type(0, gettype(r[0])),) + r[1:]
        return r

    def pack_header(self, header):
        """pack header information as binary"""
        v_fmt = revlog_constants.INDEX_HEADER
        return v_fmt.pack(header)

    def entry_binary(self, rev):
        """return the raw binary string representing a revision"""
        entry = self[rev]
        p = revlog_constants.INDEX_ENTRY_V1.pack(*entry)
        if rev == 0:
            p = p[revlog_constants.INDEX_HEADER.size :]
        return p


class IndexObject(BaseIndexObject):
    def __init__(self, data):

            self._extra[i - self._lgt] = new
        else:
            msg = b"cannot rewrite entries outside of this transaction"
            raise KeyError(msg)

    def entry_binary(self, rev):
        """return the raw binary string representing a revision"""
        entry = self[rev]
        p = revlog_constants.INDEX_ENTRY_V2.pack(*entry)
        if rev == 0:
            p = p[revlog_constants.INDEX_HEADER.size :]
        return p


class IndexObject2(Index2Mixin, IndexObject):
    pass