[PATCH 1 of 2] revset: add topo.revsonly argument for topo sort

[Xidorn Quan]

On Sat, Sep 24, 2016, at 05:47 AM, Pierre-Yves David wrote:
> On 09/23/2016 03:26 PM, Xidorn Quan wrote:
> > # HG changeset patch
> > # User Xidorn Quan <me at upsuper.org>
> > # Date 1474636628 -36000
> > #      Fri Sep 23 23:17:08 2016 +1000
> > # Node ID 9e8aeaddddf3bf6e61b351a738f5cadbbf4815f3
> > # Parent  285a8c3e53f2183438f0cdbc238e4ab851d0d110
> > revset: add topo.revsonly argument for topo sort
> >
> > This argument is used when we want an order which is not affected by
> > revisions other than given ones. It helps the next patch (rebase in
> > topo order) to keep sensible order when multiple separate revisions
> > are specified.
> 
> I do not understand why this is necessary. How is the current code 
> misbehaving in your case?

I did this for fixing "Test multiple root handling" in
test-rebase-obsolete.t. But rejudging that testcase, it seems to me I
probably should not do this, but instead, just update the result of that
test with my second patch.

- Xidorn