Re: Suggestion: Have `C-x v =' run `diff-backup'

[Deniz Dogan <deniz.a.m.dogan@gmail.com>]

2011/4/14 Ted Zlatanov <tzz@lifelogs.com>:
> On Thu, 14 Apr 2011 08:32:21 -0600 Tom Tromey <tromey@redhat.com> wrote:
>
>>>>>>> "Deniz" == Deniz Dogan <deniz.a.m.dogan@gmail.com> writes:
> Deniz> 2011/4/14 Lars Magne Ingebrigtsen <larsi@gnus.org>:
>>>> When looking at files, I often wonder what the diff is between the
>>>> current version and the previous one, so my fingers go `C-x v ='
>>>> automatically, only to be presented with "No fileset is available here".
>>>>
>>>> Wouldn't it be nice if that command, if there was no fileset there, and
>>>> there were backup files, would then run `diff-backup' instead of just
>>>> erroring out?
>>>>
>
> Deniz> I guess this would be confusing to many people if they're not aware of
> Deniz> this behaviour. If this is implemented, maybe it would be best to tell
> Deniz> the user that there is no fileset and ask if s?he wants to diff with
> Deniz> the backup?
>
> Tom> How about, if there are no differences, put a "diff against previous
> Tom> revision" button into the *vc-diff* buffer?
>
> Buttons are slow.  Maybe it would be OK to just do
> (y-or-n-p "There are no changes in this revision, try the previous one?")
>

Is that what the suggestion was about? I think Lars means that if the
file is not version controlled, he wants to compare the buffer
contents to the backup file.

-- 
Deniz Dogan