bug#38044: 27.0.50; There should be an easier way to look at a specific vc commit

[Dmitry Gutov]

On 20.11.2019 21:40, Dmitry Gutov wrote:
> > > How would that even work? vc-diff will always delegate to vc-git-diff.
> >
> > It will work if we program either vc-diff or vc-git-diff to call "git
> > show" under some specific circumstances.
>
> That makes little sense to me, sorry.

What we can try instead:

A new command: vc-describe-revision (for example; call it however you 
want) which first invokes vc-print-log-internal like 
vc-annotate-show-log-revision-at-line does, followed by calling 
vc-diff-internal like vc-annotate-show-diff-revision-at-line-internal 
does. The only difficulty there is coloring diff output properly. Maybe 
just take the fontified buffer strings from the above commands and copy 
them over into a new buffer.