GNU bug report logs - #45098
28.0.50; gnu-elpa: if user says `no' to install package, it aborts the previous function invoked

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Message #17 received at 45098 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Jean Louis <bugs <at> gnu.support>, 45098 <at> debbugs.gnu.org
Subject: Re: bug#45098: 28.0.50; gnu-elpa: if user says `no' to install
 package, it aborts the previous function invoked
Date: Tue, 08 Dec 2020 15:13:45 +0100

Stefan Monnier <monnier <at> iro.umontreal.ca> writes:

> Problem (2) is largely unsolvable on `gnu-elpa`s side.
> Basically, the code in `sql-indent-enable` in sql.el does:
>
>     (when (fboundp 'sqlind-minor-mode)
>       (sqlind-minor-mode (if sql-use-indent-support +1 -1)))
>
> With `gnu-elpa` installed, `sqlind-minor-mode` is defined (as an
> autoloaded function), so we call it which in turns loads `gnu-elpa.el`,
> but from there we can't "uncall" the function.  We could signal
> a different error than "Abort", and then change the call so it just
> ignores such errors, or we could have a special hack in `gnu-elpa` for
> `sqlind-minor-mode` such that when the user decides not to
> install the package we install a dummy version of the function which
> does nothing (and then undefines the function), but I'm not sure it's
> worth the trouble.

Couldn't gnu-elpa just make sqlind-minor-mode into `indentity' (or
something similar) in these cases?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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