GNU bug report logs - #34987
27.0.50; Error after toggling duplicate suppression

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From: "Basil L. Contovounesios" <contovob <at> tcd.ie>
To: 34987 <at> debbugs.gnu.org
Cc: Eric Abrahamsen <eric <at> ericabrahamsen.net>
Subject: bug#34987: 27.0.50; Error after toggling duplicate suppression
Date: Mon, 25 Mar 2019 03:54:01 +0000

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

tags 34987 patch
quit

"Basil L. Contovounesios" <contovob <at> tcd.ie> writes:

> Patch to follow.

Here it is:

[0001-Fix-Gnus-duplicate-suppression-guards-bug-34987.patch (text/x-diff, inline)]

From 162c8d12a4614776e0104b6701d27f5b30bf607b Mon Sep 17 00:00:00 2001
From: "Basil L. Contovounesios" <contovob <at> tcd.ie>
Date: Mon, 25 Mar 2019 02:15:10 +0000
Subject: [PATCH] Fix Gnus duplicate suppression guards (bug#34987)

* lisp/gnus/gnus-dup.el (gnus-dup-enter-articles)
(gnus-dup-suppress-articles): Use gnus-dup-hashtb as an indicator of
initialization instead of gnus-dup-list, which may happen to be nil.
(gnus-dup-unsuppress-article): Do nothing if gnus-dup-hashtb is
uninitialized.
---
 lisp/gnus/gnus-dup.el | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/lisp/gnus/gnus-dup.el b/lisp/gnus/gnus-dup.el
index 8b876489e1..86dbf1a574 100644
--- a/lisp/gnus/gnus-dup.el
+++ b/lisp/gnus/gnus-dup.el
@@ -105,7 +105,7 @@ gnus-dup-save
 
 (defun gnus-dup-enter-articles ()
   "Enter articles from the current group for future duplicate suppression."
-  (unless gnus-dup-list
+  (unless gnus-dup-hashtb
     (gnus-dup-open))
   (setq gnus-dup-list-dirty t)		; mark list for saving
   (let (msgid)
@@ -129,7 +129,7 @@ gnus-dup-enter-articles
 
 (defun gnus-dup-suppress-articles ()
   "Mark duplicate articles as read."
-  (unless gnus-dup-list
+  (unless gnus-dup-hashtb
     (gnus-dup-open))
   (gnus-message 8 "Suppressing duplicates...")
   (let ((auto (and gnus-newsgroup-auto-expire
@@ -149,9 +149,10 @@ gnus-dup-suppress-articles
 
 (defun gnus-dup-unsuppress-article (article)
   "Stop suppression of ARTICLE."
-  (let* ((header (gnus-data-header (gnus-data-find article)))
-	 (id     (when header (mail-header-id header))))
-    (when id
+  (let (header id)
+    (when (and gnus-dup-hashtb
+               (setq header (gnus-data-header (gnus-data-find article)))
+               (setq id (mail-header-id header)))
       (setq gnus-dup-list-dirty t)
       (setq gnus-dup-list (delete id gnus-dup-list))
       (remhash id gnus-dup-hashtb))))
-- 
2.20.1

[Message part 3 (text/plain, inline)]

Thanks,

-- 
Basil

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