GNU bug report logs - #33881
27.0.50; flymake-show-diagnostics-buffer throwing 'Selecting deleted buffer' error

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: jvshahid <at> gmail.com
Subject: bug#33881: closed (Re: bug#33881: 27.0.50; flymake-show-diagnostics-buffer
 throwing 'Selecting deleted buffer' error)
Date: Sat, 05 Jan 2019 11:45:03 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#33881: 27.0.50; flymake-show-diagnostics-buffer throwing 'Selecting deleted buffer' error

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 33881 <at> debbugs.gnu.org.

-- 
33881: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=33881
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: João Távora <joaotavora <at> gmail.com>
To: John Shahid <jvshahid <at> gmail.com>
Cc: 33881-done <at> debbugs.gnu.org, 33881 <at> debbugs.gnu.org
Subject: Re: bug#33881: 27.0.50;
 flymake-show-diagnostics-buffer throwing 'Selecting deleted buffer'
 error
Date: Sat, 05 Jan 2019 11:44:00 +0000

John Shahid <jvshahid <at> gmail.com> writes:

> I was able to fix the issue by applying the following patch
>
> From 2dda8ad72bb5a1603473d9420e90e8d1d694a134 Mon Sep 17 00:00:00 2001
> From: John Shahid <jvshahid <at> gmail.com>
> Date: Wed, 26 Dec 2018 16:45:33 -0500
> Subject: [PATCH] Always set the source buffer before reverting
>
> * lisp/progmodes/flymake.el (flymake-show-diagnostics-buffer): Do it.
> ---
>  lisp/progmodes/flymake.el | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/lisp/progmodes/flymake.el b/lisp/progmodes/flymake.el
> index 7b100da42b..c773eb1c15 100644
> --- a/lisp/progmodes/flymake.el
> +++ b/lisp/progmodes/flymake.el
> @@ -1332,9 +1332,9 @@ flymake-show-diagnostics-buffer
>           (target (or (get-buffer name)
>                       (with-current-buffer (get-buffer-create name)
>                         (flymake-diagnostics-buffer-mode)
> -                       (setq flymake--diagnostics-buffer-source source)
>                         (current-buffer)))))
>      (with-current-buffer target
> +      (setq flymake--diagnostics-buffer-source source)
>        (revert-buffer)
>        (display-buffer (current-buffer)))))

Pushed your patch with a slight change to the commit message.

Marked it as "Copyright-Paperwork-Exempt", but now I see I shouldn't
have, as you have probably already signed papers since I see a lot more
commits to your name.

Anyway, thanks!
João

[Message part 3 (message/rfc822, inline)]

From: jvshahid <at> gmail.com
To: bug-gnu-emacs <at> gnu.org
Subject: 27.0.50;
 flymake-show-diagnostics-buffer throwing 'Selecting deleted buffer'
 error
Date: Wed, 26 Dec 2018 16:42:19 -0500

Using eglot and flymake, when I re-open the current file using the
following steps, `flymake-show-diagnostics-buffer` stop working and
throws `Selecting deleted buffer' error.  Steps to reproduce:

1. Open file
2. Visit the diagnostics buffer `M-x flymake-show-diagnostics-buffer'
3. Re-open the file using `find-alternate-file'
4. Invoking `flymake-show-diagnostics-buffer' throws an error


In GNU Emacs 27.0.50 (build 6, x86_64-pc-linux-gnu, GTK+ Version 3.24.1)
 of 2018-12-26 built on amun
Repository revision: 1419cc4f9de54dad229648e9482716417cc3e3b5
Repository branch: save-excursion-tail-output
Windowing system distributor 'The X.Org Foundation', version 11.0.12003000
System Description: Arch Linux

Recent messages:
flymake-show-diagnostics-buffer
tabulated-list-print: Selecting deleted buffer
Configured using:
 'configure --prefix=/home/jvshahid/bin/emacs-27'

Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND GPM DBUS GSETTINGS GLIB NOTIFY INOTIFY
ACL GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS
GTK3 X11 XDBE XIM THREADS LIBSYSTEMD JSON LCMS2 GMP

Important settings:
  value of $LC_COLLATE: en_US.UTF-8
  value of $LC_CTYPE: en_US.UTF-8
  value of $LC_MESSAGES: en_US.UTF-8
  value of $LC_MONETARY: en_US.UTF-8
  value of $LC_NUMERIC: en_US.UTF-8
  value of $LC_TIME: en_US.UTF-8
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Java//w

Minor modes in effect:
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Load-path shadows:
/home/jvshahid/.emacs.d/straight/build/jsonrpc/jsonrpc hides /home/jvshahid/bin/emacs-27/share/emacs/27.0.50/lisp/jsonrpc
/home/jvshahid/.emacs.d/straight/build/cl-lib/cl-lib hides /home/jvshahid/bin/emacs-27/share/emacs/27.0.50/lisp/emacs-lisp/cl-lib
/home/jvshahid/.emacs.d/straight/build/seq/seq hides /home/jvshahid/bin/emacs-27/share/emacs/27.0.50/lisp/emacs-lisp/seq
/home/jvshahid/.emacs.d/straight/build/cl-generic/cl-generic hides /home/jvshahid/bin/emacs-27/share/emacs/27.0.50/lisp/emacs-lisp/cl-generic

Features:
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inotify lcms2 dynamic-setting system-font-setting font-render-setting
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Memory information:
((conses 16 539082 374845)
 (symbols 48 61816 41)
 (strings 32 168910 63466)
 (string-bytes 1 5878815)
 (vectors 16 92850)
 (vector-slots 8 2365421 412104)
 (floats 8 543 2370)
 (intervals 56 1915 1375)
 (buffers 992 39))

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