1058 

  1059 def _packellipsischangegroup(repo, common, match, relevant_nodes,

  1060                              ellipsisroots, visitnodes, depth, source, version):

  1061     if version in ('01', '02'):

  1062         raise error.Abort(

  1063             'ellipsis nodes require at least cg3 on client and server, '

  1064             'but negotiated version %s' % version)

  1065     # We wrap cg1packer.revchunk, using a side channel to pass

  1066     # relevant_nodes into that area. Then if linknode isn't in the

  1067     # set, we know we have an ellipsis node and we should defer

  1068     # sending that node's data. We override close() to detect

  1069     # pending ellipsis nodes and flush them.

  1070     packer = getbundler(version, repo, filematcher=match)

  1071     # Give the packer the list of nodes which should not be

  1072     # ellipsis nodes. We store this rather than the set of nodes

  1073     # that should be an ellipsis because for very large histories

  1074     # we expect this to be significantly smaller.

  1075     packer.full_nodes = relevant_nodes

  1076     # Maps ellipsis revs to their roots at the changelog level.

  1077     packer.precomputed_ellipsis = ellipsisroots

  1078     # Maps CL revs to per-revlog revisions. Cleared in close() at

  1079     # the end of each group.

  1080     packer.clrev_to_localrev = {}

  1081     packer.next_clrev_to_localrev = {}

  1082     # Maps changelog nodes to changelog revs. Filled in once

  1083     # during changelog stage and then left unmodified.

  1084     packer.clnode_to_rev = {}

  1085     packer.changelog_done = False

  1086     # If true, informs the packer that it is serving shallow content and might

  1087     # need to pack file contents not introduced by the changes being packed.

  1088     packer.is_shallow = depth is not None

  1089 

  1090     return packer.generate(common, visitnodes, False, source)