GNU bug report logs - #65267
30.0.50; modifying debug-ignored-errors during startup with --debug-init is broken

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Message #100 received at 65267-done <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Štěpán Němec <stepnem <at> smrk.net>
Cc: 65267-done <at> debbugs.gnu.org, monnier <at> iro.umontreal.ca,
 npostavs <at> users.sourceforge.net
Subject: Re: bug#65267: 30.0.50; modifying debug-ignored-errors during
 startup with --debug-init is broken, bug#65267: 30.0.50; modifying
 debug-ignored-errors during startup with --debug-init is broken
Date: Thu, 17 Aug 2023 21:36:59 +0300

> From: Štěpán Němec <stepnem <at> smrk.net>
> Cc: 65267 <at> debbugs.gnu.org, monnier <at> iro.umontreal.ca,
>  npostavs <at> users.sourceforge.net
> Date: Thu, 17 Aug 2023 20:15:02 +0200
> 
> On Thu, 17 Aug 2023 20:58:00 +0300
> Eli Zaretskii wrote:
> 
> >> Running under GDB is significantly more complex (esp. for a casual user)
> >> than adding a CLI option
> >
> > No, it doesn't.  Starting a program from GDB is very similar to
> > starting a program from the shell prompt.  GDB was intentionally
> > written to work like a shell in this regard, complete with searching
> > PATH, supporting redirection, etc.
> 
> Yes, after one has installed GDB, learnt how to use it and set it up to
> be useful with Emacs, the mere act of *starting* it is relatively easy,
> indeed...

I'm told that nowadays installing GDB boils down to running a single
command of the package manager.

> > I'm still not sure I understand: do you want us to document that if
> > debug-ignored-errors are modified in the init files, they sometimes
> > might end up with an unexpected value?
> 
> Yes.  (I think you mentioned something about saying that it's only safe
> to do so from after-init-hook or some such in a previous message.)
> 
> > If so, I don't think this kind of documentation will be useful.
> 
> Certainly more useful than silently breaking user's setup?  (Which I
> still don't think should be done at all, silent or not, but doing so
> tacitly seems more on the user-hostile side.)
> 
> > In the (IMO improbable) case that someone will want to remove errors
> > from the default value, as opposed to simply set it to the value they
> > want, I prefer to receive a bug report and explain that removing is
> > not supported with --debug-init, rather than have something like that
> > in the documentation, where it will almost certainly be very hard to
> > discover.
> 
> IMHO it should be (at least) in the doc string of debug-ignored-errors.

I added something to the doc string.  Let's see if this will be
discovered by someone.

And with that, I'm closing this bug.

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