bug#22032: 24.3; VC doesn't handle hg hidden revisions

[Glenn Hutchings]

On 12/18/15 05:02, Dmitry Gutov wrote:
> On 12/16/2015 05:02 AM, Andy Moreton wrote:
>
> > > If there's a direct counterpart to 'git rev-parse 59951^', it would 
> > > be handy
> > > here.
> >
> > You mean like the "hg id" line in the example above ?
>
> Um, yes. Thanks for the explanation, I've pushed the new definition of 
> vc-hg-previous-revision that uses 'hg id -n -r 123^' to emacs-25.
>
> It seems to work fine, if a little surprising for merge commits when 
> vc-hg-log-graph is nil (which it is by default). Also, calling Hg is 
> not free, and adds ~120 ms on my machine.
>
> Glenn, could you if it solves the hidden revision problem as well?

Yes, it does.  I've created a test script which recreates the problem 
(and solution) quite nicely.  Attached is the script, and its output.

Glenn

script.sh
Description: application/shellscript

script.txt
Description: Text document