comparison mercurial/localrepo.py @ 10011:a9836feb5a8c

changegroupsubset: readdelta() can be used if the previous rev is a parent

10010:2fce96916d97

            return msng_mnfst_set[mnfstnode]

        # A function generating function that sets up the initial environment
        # the inner function.
        def filenode_collector(changedfiles):
            next_rev = [0]
            # This gathers information from each manifestnode included in the
            # changegroup about which filenodes the manifest node references
            # so we can include those in the changegroup too.
            #
            # It also remembers which changenode each filenode belongs to.  It
            # does this by assuming the a filenode belongs to the changenode
            # the first manifest that references it belongs to.
            def collect_msng_filenodes(mnfstnode):
                r = mnfst.rev(mnfstnode)
                if r == next_rev[0]:
                    # If the last rev we looked at was the one just previous,
                    # we only need to see a diff.
                    deltamf = mnfst.readdelta(mnfstnode)
                    # For each line in the delta
                    for f, fnode in deltamf.iteritems():
                        f = changedfiles.get(f, None)

                        if fnode is not None:
                            # See comments above.
                            clnode = msng_mnfst_set[mnfstnode]
                            ndset = msng_filenode_set.setdefault(f, {})
                            ndset.setdefault(fnode, clnode)
                # Remember the revision we hope to see next.
                next_rev[0] = r + 1
            return collect_msng_filenodes

        # We have a list of filenodes we think we need for a file, lets remove
        # all those we know the recipient must have.
        def prune_filenodes(f, filerevlog):

10011:a9836feb5a8c

            return msng_mnfst_set[mnfstnode]

        # A function generating function that sets up the initial environment
        # the inner function.
        def filenode_collector(changedfiles):
            # This gathers information from each manifestnode included in the
            # changegroup about which filenodes the manifest node references
            # so we can include those in the changegroup too.
            #
            # It also remembers which changenode each filenode belongs to.  It
            # does this by assuming the a filenode belongs to the changenode
            # the first manifest that references it belongs to.
            def collect_msng_filenodes(mnfstnode):
                r = mnfst.rev(mnfstnode)
                if r - 1 in mnfst.parentrevs(r):
                    # If the previous rev is one of the parents,
                    # we only need to see a diff.
                    deltamf = mnfst.readdelta(mnfstnode)
                    # For each line in the delta
                    for f, fnode in deltamf.iteritems():
                        f = changedfiles.get(f, None)

                        if fnode is not None:
                            # See comments above.
                            clnode = msng_mnfst_set[mnfstnode]
                            ndset = msng_filenode_set.setdefault(f, {})
                            ndset.setdefault(fnode, clnode)
            return collect_msng_filenodes

        # We have a list of filenodes we think we need for a file, lets remove
        # all those we know the recipient must have.
        def prune_filenodes(f, filerevlog):