mercurial/setdiscovery.py

41881:e514799e4e07

        # Because this function can be called multiple times during discovery,
        # we may still perform redundant work and there is room to optimize
        # this by keeping a persistent cache of children across invocations.
        children = {}

        for rev in repo.changelog.revs(start=min(revsroots)):
            # Always ensure revision has an entry so we don't need to worry
            # about missing keys.
            children.setdefault(rev, [])

            for prev in parentrevs(rev):

41882:c98420914c10

        # Because this function can be called multiple times during discovery,
        # we may still perform redundant work and there is room to optimize
        # this by keeping a persistent cache of children across invocations.
        children = {}

        for rev in sorted(revs):
            # Always ensure revision has an entry so we don't need to worry
            # about missing keys.
            children.setdefault(rev, [])

            for prev in parentrevs(rev):