Re: [PATCH 2/4] revision traversal: retire BOUNDARY_SHOW

Johannes Schindelin [off-list ref] writes:

quoted

quoted

This should help performance, as not all reachable commits are traversed 
any more.

You prevented that with "while (i &&" part already, didn't you?

Well, yes. I also wanted to prevent going down all paths, though.

If we wanted to bundle "-8 A B", I think we would make 'x' and
'y' prereqs, as they are the direct parents commits that are
shown, and that themselves are not shown.

         .---*---*---*---*---* A
        /
    ---x---y---*---*---* B

If we say upon hitting prereq (x and y) we stop traversal by
marking the parent UNINTERESTING, I suspected that we may not
find out 'x' with get_revision() loop, and that was why I chose
not to.  Instead the loop stops by finding y and then x (and by
saying "ok I needed to find two and now I have two".

But this probably needs more optimization.