bug#33336: 26; Document how to restore trashed files

[Eli Zaretskii]

> From: Glenn Morris <rgm@gnu.org>
> Cc: Drew Adams <drew.adams@oracle.com>,  33336@debbugs.gnu.org
> Date: Sat, 10 Nov 2018 16:26:07 -0500
> 
> Eli Zaretskii wrote:
> 
> > This is a system facility, Emacs just uses it.  Restoring files from
> > there is something specific to each system, and is not for Emacs to
> > provide or document.
> 
> I don't see how moving something out of trash is different to moving it
> in this regard.

Where trash is just another directory, you are right.  But that's just
one variety.

> On GNU systems, the only relevant mechanism is the freedesktop trash
> spec that move-file-to-trash implements. It looks like it would be
> straightforward for someone who wanted to to write a
> move-file-from-trash that restores files according to the trashinfo
> file, and this could be hooked into dired.

This won't work on MS-Windows, where trash is a special directory, and
restoring files from there is a special operation, not just moving a
file.