GNU bug report logs - #70724
29.2.50; eglot-reconnect errors when the project is deleted

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Package: emacs;

Reported by: Spencer Baugh <sbaugh <at> janestreet.com>

Date: Thu, 2 May 2024 19:38:01 UTC

Severity: normal

Found in version 29.2.50

Done: Dmitry Gutov <dmitry <at> gutov.dev>

Bug is archived. No further changes may be made.

Full log

Message #19 received at 70724-done <at> debbugs.gnu.org (full text, mbox):

From: Dmitry Gutov <dmitry <at> gutov.dev>
To: Spencer Baugh <sbaugh <at> janestreet.com>, 70724-done <at> debbugs.gnu.org
Cc: app-emacs-dev <at> janestreet.com,
 João Távora <joaotavora <at> gmail.com>
Subject: Re: bug#70724: 29.2.50; eglot-reconnect errors when the project is
 deleted
Date: Thu, 6 Jun 2024 23:36:11 +0300

On 04/05/2024 04:09, Dmitry Gutov wrote:
> 
> I think I like this solution (as long as the nil value returned by 
> project-current on this step is appropriately handled).
> 
> Something like:
> 
> diff --git a/lisp/progmodes/eglot.el b/lisp/progmodes/eglot.el
> index 6896baf30ce..7b2461c3ce6 100644
> --- a/lisp/progmodes/eglot.el
> +++ b/lisp/progmodes/eglot.el
> @@ -1426,11 +1426,15 @@ eglot-reconnect
>     (interactive (list (eglot--current-server-or-lose) t))
>     (when (jsonrpc-running-p server)
>       (ignore-errors (eglot-shutdown server interactive nil 
> 'preserve-buffers)))
> -  (eglot--connect (eglot--major-modes server)
> -                  (eglot--project server)
> -                  (eieio-object-class-name server)
> -                  (eglot--saved-initargs server)
> -                  (eglot--language-ids server))
> +  (let* ((root (project-root (eglot--project server)))
> +         (project (project-current nil root)))
> +    (if (not project)
> +        (eglot--error "Project in `%s' is gone!" root)
> +      (eglot--connect (eglot--major-modes server)
> +                      project
> +                      (eieio-object-class-name server)
> +                      (eglot--saved-initargs server)
> +                      (eglot--language-ids server))))
>     (eglot--message "Reconnected!"))
> 
>   (defvar eglot--managed-mode) ; forward decl

Okay, I've pushed a slightly revised version of this patch now. It makes 
sense to me, even if some caching issues might remain in project backend(s).

Spencer, please see if it takes care of your scenario.
This bug report was last modified 184 days ago.

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