From: Vincent Lefevre <vincent@vinc17.net>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 18141@debbugs.gnu.org, yamaoka@jpl.org
Subject: bug#18141: 24.4.50; saving .gz file breaks file coding
Date: Wed, 6 Aug 2014 21:08:25 +0200 [thread overview]
Message-ID: <20140806190825.GL4813@xvii.vinc17.org> (raw)
In-Reply-To: <831tstplqs.fsf@gnu.org>
On 2014-08-06 20:32:27 +0300, Eli Zaretskii wrote:
> > (Emacs seems to be confused on files that have several encodings,
> > such as mailboxes)
>
> It does? I didn't see that since Emacs 23.1 at the least.
Things may have been fixed. I don't remember exactly. There's also
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=13505 that was fixed
not so long ago.
> > and I sometimes hit Ctrl-C in the terminal (from which Emacs was
> > started) to discard any change.
>
> Then don't do that, if it hurts.
Ctrl-C is standard to interrupt a foreground process. If the process
can't handle that, it should trap SIGINT. Ditto for SIGQUIT. But
processes must handle SIGHUP and SIGTERM gracefully, ditto for various
errors, like an X server crash.
> C-g or M-~ or C-/ in Emacs will discard changes (in different
> scenarios) without any adverse effects, as will killing the buffer
> that visits the modified file. Why brutally abort Emacs by a signal,
> when Emacs gives you better ways to do that?
I haven't see any better way. My goal is to quit Emacs, discarding any
change. Ctrl-C in the terminal is the fastest way to do that.
> > And that's not OK to only leave the backup file,
> > since it can be removed or overwritten pretty quickly, before
> > I notice that the original file is gone.
>
> Removed or overwritten by whom or what?
By me. I sometimes get rid of all the backup files because I don't need
them, since the original file should have been kept. A backup file is
overwritten if I edit a file of the same name in another directory, and
again, this is normally not a problem.
> > But why isn't the backup done just before the file is actually
> > written?
>
> It _is_ done "just before", see basic-save-buffer-2.
No, not without r111638: the backup is done before the user is asked
to the provide an encoding, thus not just before the file is written.
--
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
next prev parent reply other threads:[~2014-08-06 19:08 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-29 6:59 bug#18141: 24.4.50; saving .gz file breaks file coding Katsumi Yamaoka
2014-07-30 0:10 ` Glenn Morris
2014-07-30 2:36 ` Katsumi Yamaoka
2014-07-30 13:15 ` Katsumi Yamaoka
2014-08-05 8:34 ` Glenn Morris
2014-08-06 14:36 ` Eli Zaretskii
2014-08-06 16:43 ` Vincent Lefevre
2014-08-06 17:32 ` Eli Zaretskii
2014-08-06 19:08 ` Vincent Lefevre [this message]
2014-08-06 19:45 ` Eli Zaretskii
2014-08-07 0:31 ` Vincent Lefevre
2014-08-07 12:20 ` Stefan Monnier
2014-08-07 14:23 ` Vincent Lefevre
2014-08-11 1:06 ` Glenn Morris
2014-08-06 17:48 ` Stefan Monnier
2014-08-06 18:10 ` Eli Zaretskii
2014-08-07 0:45 ` Stefan Monnier
2014-08-07 15:14 ` Eli Zaretskii
2014-08-07 19:08 ` Stefan Monnier
2014-08-07 19:37 ` Eli Zaretskii
2014-08-07 20:43 ` Stefan Monnier
2014-08-08 5:51 ` Eli Zaretskii
2014-08-06 23:45 ` Glenn Morris
2014-08-07 0:03 ` Glenn Morris
2014-08-07 12:14 ` Stefan Monnier
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