From: Han Boetes <han@mijncomputer.nl>
Subject: Re: backup method
Date: Fri, 28 Jan 2005 04:55:56 +0059 [thread overview]
Message-ID: <20050128035618.GI6167@boetes.org> (raw)
In-Reply-To: <E1CuHyb-0006AB-00@fencepost.gnu.org>
Richard Stallman wrote:
> Han Boetes wrote:
> > The default backup method is mv and then create a new file.
> > That's nice if you really want to keep the timestamp intact.
> > But if you use emacs with crontab -e you remove the tmpfile
> > and since the filedescriptor is still open your update to your
> > cron is lost -- without warning. It was pretty hard to
> > discover why this happened.
> >
> > So I would like to suggest to make backup by copying the
> > default.
>
> I won't change it in general, but we could probably arrange to
> use backup by copying for *this specific case*. Can you give a
> precise recipe for distinguishing this case--a regexp for these
> file names, perhaps?
My initial suggestion to do backup by copying is not the right
solution for the problem at all. I explained the right solution in
another message in this thread.
My prove is:
unset TMP TMPDIR
export VISUAL='emacs -q' # which does backup by moving by default
crontab -e
And you can edit your crontab fine since emacs won't make a backup
of files in /tmp
export TMP=~/.tmp; export TMPDIR=~/.tmp
export VISUAL='emacs -q' # which does backup by moving by default
crontab -e
And you can no longer edit crontabs since emacs will make a backup
of files in /tmp.
This problem is caused by the fact that not all programs honour
TMPDIR and still make tmpfiles in /tmp. Or that emacs does not
anticipate this.
I described the solution in another message in this thread.
# Han
next prev parent reply other threads:[~2005-01-28 3:56 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-27 0:02 backup method Han Boetes
2005-01-27 0:45 ` Luc Teirlinck
2005-01-27 1:20 ` Miles Bader
2005-01-27 1:37 ` Luc Teirlinck
2005-01-27 1:54 ` Han Boetes
2005-01-27 22:18 ` Richard Stallman
2005-01-28 3:56 ` Han Boetes [this message]
2005-01-29 4:16 ` Richard Stallman
2005-01-29 6:08 ` Han Boetes
2005-01-29 18:42 ` Luc Teirlinck
2005-01-29 21:06 ` Stefan Monnier
2005-01-29 21:48 ` Luc Teirlinck
2005-01-29 22:37 ` Luc Teirlinck
2005-01-29 22:49 ` Luc Teirlinck
2005-01-29 21:57 ` Luc Teirlinck
2005-01-29 22:05 ` Luc Teirlinck
2005-01-29 22:52 ` Han Boetes
2005-01-29 23:50 ` Stefan Monnier
2005-01-30 21:52 ` Han Boetes
2005-01-31 0:20 ` Richard Stallman
2005-01-31 0:57 ` Stefan Monnier
2005-02-01 13:30 ` Richard Stallman
2005-02-01 14:09 ` Stefan Monnier
2005-02-03 6:40 ` Richard Stallman
2005-02-03 9:27 ` David Kastrup
2005-02-03 10:15 ` Han Boetes
2005-02-05 5:28 ` Richard Stallman
2005-02-05 10:26 ` David Kastrup
2005-02-06 10:29 ` Richard Stallman
2005-01-31 0:20 ` Richard Stallman
2005-01-31 4:07 ` Han Boetes
2005-01-29 20:06 ` Luc Teirlinck
2005-01-30 10:57 ` Richard Stallman
2005-01-30 11:39 ` Han Boetes
2005-01-27 18:25 ` Kevin Rodgers
2005-01-27 20:25 ` Reiner Steib
2005-01-27 23:19 ` Miles Bader
2005-01-27 23:12 ` Miles Bader
2005-01-28 3:55 ` Richard Stallman
2005-01-27 1:47 ` Luc Teirlinck
2005-01-27 2:08 ` Han Boetes
2005-01-27 2:27 ` Han Boetes
2005-01-27 4:59 ` Han Boetes
2005-01-27 2:37 ` Miles Bader
2005-01-27 3:27 ` Han Boetes
2005-01-27 5:08 ` Eli Zaretskii
2005-01-27 5:27 ` Han Boetes
2005-01-27 19:41 ` Eli Zaretskii
2005-01-28 4:14 ` Han Boetes
2005-01-27 8:30 ` Kim F. Storm
2005-01-27 19:55 ` Luc Teirlinck
2005-01-27 21:12 ` Luc Teirlinck
2005-01-27 20:15 ` Luc Teirlinck
2005-01-27 22:19 ` Richard Stallman
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