About adding "successors" and "precursors" template keywords

[Pierre-Yves David]

On 02/18/2016 06:24 PM, Kostia Balytskyi wrote:
> Hi guys,
>
> I would like to add "successors" and "precursors" template keywords to
> the mercurial core. The motivation is clear: to allow people configure
> their hg styles to display this if necessary (or even tweak the standard
> mercurial log output if you think this is worth doing).
>
> The "successors" keyword will display a plain list of final successors,
> e.g. for situation like a<-b<-c `hg log –r a` will not display b, only
> c. What's more, it will display all the successors as a plain list,
> without nesting. What I mean by that is if commit a is succeeded by b
> and independently (c,d) (successorssets would return [(b,), (c,d)]), we
> will just display "b,c,d", without any structure.

The way hgview and thg have been doing that is by showing the next 
visible successors and that is all. This avoid massive explosion of 
output size when the chain is long, provide more accurate data when 
tracking a specific line of meta-history and align with what we do with 
"parent:".

I would probably starts using this direct successors approach first and 
see how it goes.

-- 
Pierre-Yves David