* Reliable indication that auto-saving should not be done
@ 2007-03-30 0:10 Denis Bueno
0 siblings, 0 replies; 2+ messages in thread
From: Denis Bueno @ 2007-03-30 0:10 UTC (permalink / raw)
To: help-gnu-emacs
All-
I wrote a pretty simple function that saves the current buffer to a
file in a local darcs repo and records its changes. I wanted versioned
records of changes I make to the files I edit.
I install that function in `auto-save-hook'. However, in some buffers
auto-saving is off (for security reasons) but my hook still gets run.
My questions are, first of all, should the auto-save hook be run when
auto-saving is off? Secondly, if so, what is a reliable indication
that auto-save is on (or off)?
(In particular when I open encrypted files using crypt++.el, it sends
a message to the minibuffer, saying "Auto save off (in this buffer)"
and my hook is run just the same.)
Thanks in advance.
-Denis
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Reliable indication that auto-saving should not be done
[not found] <mailman.1599.1175213615.7795.help-gnu-emacs@gnu.org>
@ 2007-03-30 11:13 ` Johan Bockgård
0 siblings, 0 replies; 2+ messages in thread
From: Johan Bockgård @ 2007-03-30 11:13 UTC (permalink / raw)
To: help-gnu-emacs
"Denis Bueno" <dbueno@gmail.com> writes:
> I install that function in `auto-save-hook'. However, in some buffers
> auto-saving is off (for security reasons) but my hook still gets run.
> My questions are, first of all, should the auto-save hook be run when
> auto-saving is off?
The auto-saving mechanism is global. Periodically Emacs runs the
function `do-auto-save' ("Auto-save all buffers that need it"). This
runs `auto-save-hook' once before saving the buffers.
> Secondly, if so, what is a reliable indication that auto-save is on
> (or off)?
Variable: buffer-auto-save-file-name
This buffer-local variable is the name of the file used for
auto-saving the current buffer. It is `nil' if the buffer should
not be auto-saved.
--
Johan Bockgård
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2007-03-30 0:10 Reliable indication that auto-saving should not be done Denis Bueno
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2007-03-30 11:13 ` Johan Bockgård
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