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Re: debug-on-error doesn't catch 'cannot write backup file'

From: Kevin Rodgers
Subject: Re: debug-on-error doesn't catch 'cannot write backup file'
Date: Mon, 23 Dec 2002 11:41:19 -0700
User-agent: Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv: Gecko/20020406 Netscape6/6.2.2

Dan Jacobson wrote:

I did  (set-variable (quote debug-on-error) t)
but that was not enough to start the dubugger when one hit
"Cannot write backup file; backing up in %backup%~"

That's because Emacs only prints a message instead of signalling an error,
which would abort the backup-buffer function (and thus probably the save-buffer
function).  Perhaps backup-buffer should signal an error that is ignored by
default, but which users could explicitly un-ignore.

True, I use backup-dir.el, but those words aren't from there.


And maybe it should give the whole path for where it is putting the
backup, I can't seem to find it.

I agree, the path should not be trucated via file-name-nondirectory.

Odd too that as root I couldn't
backup to where I please.  I had used EDITOR=emacs exim -Meb ...

Indeed.  It would take some debugging to first determine which function in

backup-buffer is signalling the error that is caught and then reported via
the "Cannot write backup file" message.

<a href="mailto:&lt;kevin.rodgers&#64;ihs.com&gt;";>Kevin Rodgers</a>

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