Re: RCS, again: another removed functionality: undo last-checkin

[Dmitry Gutov <dgutov@yandex.ru>]

On 09/23/2015 08:33 PM, Stefan Monnier wrote:
>>> Yes, M-x vc-commit RET should definitely ignore the "up to date" status.
>> By vc-commit, do you mean vc-next-action, or a new command?
>
> Nowadays (as in "with modern VCS"), vc-next-action can't do much
> beside commit, and `vc-next-action' is also the only command which
> can do "commit".

It also performs that weird step: "If every file in the VC fileset is 
not registered for version control, register the fileset (but don't 
commit)", aborting if some of the files in the fileset are unregistered 
and others are registered.

It would make sense to remove it (and commit all selected files), but it 
would be nice to know what prompted its existence in the first place.

This could also be dropped (we have a separate command for it):

"For a centralized version control system, if any work file in the VC 
fileset is out of date, offer to update the fileset."

> So, yes, I mean a new command (which should mostly supercede
> vc-next-action).

The section dedicated to "For old-style locking-based version control 
systems" in vc-next-action's docstring is more convoluted. As long as 
we're dedicated to supporting them, I'm not sure what change would be 
appropriate.