bug#62940: 29.0.60; vc: no easy way to get diff of all outgoing changes

[sbaugh]

Eli Zaretskii <eliz@gnu.org> writes:
>> Cc: 62940@debbugs.gnu.org, Filipp Gunbin <fgunbin@fastmail.fm>
>> From: sbaugh@catern.com
>> Date: Fri, 21 Apr 2023 18:36:01 +0000 (UTC)
>> 
>> After using it for a bit, one issue is that C-x v O shows changes in all
>> files; it would be nice if there was a way to get outgoing
>> changes/commits only for the current fileset.
>
> What is the current fileset for "C-x v O"? isn't that "all files"
> anyway?

Well, yes, that's the issue.  When my current fileset is not "all files"
(for example when I am in an individual file without marking files in a
vc-dir buffer) I would like to be able to see outgoing changes on just
those files.  C-x v O overrides the fileset to be "all files" instead.

> I could understand if you were talking about a VC command invoked from
> a vc-dir buffer or a Dired buffer, where you can mark files to be
> considered as the current fileset.  That would mean your comment is
> about the vc-dir command 'O' or the equivalent in Dired.  But
> otherwise, I'm not sure I understand the UI you have in mind.

1. View a file buffer
2. Hit C-x v O
3. See outgoing changes only for that file

> And then there's the issue of whether the backend supports what you
> want, of course.