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bug#17351: Trunk emacs splats .emacs.desktop at startup
From: |
Alan Mackenzie |
Subject: |
bug#17351: Trunk emacs splats .emacs.desktop at startup |
Date: |
Sun, 27 Apr 2014 09:15:55 +0000 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Morning, Juri.
On Sun, Apr 27, 2014 at 11:22:39AM +0300, Juri Linkov wrote:
> > This is horrible. I started a GUI emacs session, and there were errors
> > loading the desktop. I loaded the file .emacs.desktop into my emacs
> > session to see what the problem was. And lo and behold, that file had
> > already been overwritten by Emacs. :-(
> I lost my desktop too. :-( After starting a GUI session, loading the
> desktop failed to read \.\.\. characters. I see the only way how
> \.\.\. got into the desktop: some mode temporarily changed the buffer-local
> value of `print-length' that abbreviated a value while saving the desktop.
> I added precautions against this problem on the emacs-24 branch.
> But the remaining problem is that it overwrote the desktop with the
> broken file while leaving no backups of the previous desktop.
> > This is crazy. What's the point of overwriting .emacs.desktop at
> > startup? It's either going to be overwriting itself with a functionally
> > identical copy, or (as in the current case) its going to be losing
> > information needed for debugging.
> If after startup you paused for 30 seconds then auto-saving overwrote
> your desktop indeed. It seems we need to keep a backup of the desktop
> from the previous session when saving the desktop in a new session
> for the case when the desktop gets broken by the errors in it.
Yes, I think so. This needs to be mentioned in the manual, too. 30
seconds seems a very short time (by default) to trigger this saving of
the desktop. Especially when there's been no change since the previous
save.
--
Alan Mackenzie (Nuremberg, Germany).