Re: How to autosave files when terminal is closed

On Sat, 29 Oct 2022 00:03:17 +0100, Bram Moolenaar wrote:
>
> > On Fri, 28 Oct 2022 22:23:31 +0100, Bram Moolenaar wrote:
> > >
> > > > "au VimLeavePre * w" only works when I exit vim with something
> > > > like ":q!" but not if I close my terminal window.
> > > >
> > > > Error detected while processing VimLeavePre Autocommands for
> > > > "*": E749: Empty buffer
> > > >
> > > > VimLeave[Pre] is being called, but the buffer is not saved,
> > > > probably because it's closed before that event is triggered. Is
> > > > there another event that gets triggered during the closing
> > > > sequence that will allow me to autosave, or another way to do
> > > > this?
> > >
> > > Do you already have the 'autowriteall' option set?
> >
> > I think that only affects closing via :quit and the like. Closing my
> > xterm apparently doesn't follow that same exit pathway.
>
> It is supposed to, but perhaps the catching of signals is not properly
> setup. Not sure how to try it out other than closing the xterm
> normally. If you "kill -9" the xterm it might not work. Closing the
> window manager should also work OK. At least this mechanism is used
> to avoid leaving swap files laying around, and that works quite well,
> thus 'autowriteall' should also work. But I don't think there is a
> test for it.

Yea, I guess signal catching isn't properly setup. It seems that my wm
is sending vim a SIGHUP when it closes the xterm window:

Vim: Caught deadly signal HUP
Vim: preserving files...
Vim: Finished.

Manually killing vim with "kill (-1|-3|-15)" does not trigger that nice
autowriteall (awa) feature, even though vim's output says "preserving
files..."

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