From: yamaoka <yamaoka>
Date: Thu, 27 Oct 2005 09:03:10 +0000 (+0000)
Subject: Synch to No Gnus 200510270858.
X-Git-Tag: t-gnus-6_17_4-quimby-~275
X-Git-Url: http://git.chise.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=89060814251792c0f2a919e74543b27b3430ebad;p=elisp%2Fgnus.git-

Synch to No Gnus 200510270858.
---

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 0ca767f..56d36c1 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,11 @@
+2005-10-27  Jouni K Seppanen <jks@iki.fi>  (tiny change)
+
+	* nnimap.el (nnimap-search-uids-not-since-is-evil): Add variable.
+	(nnimap-request-expire-articles): Use it to avoid sending 'UID
+	SEARCH UID ... NOT SINCE' queries, for inefficient servers like
+	Courier IMAP ("some version from 2004").  Mostly based on similar
+	code in the same function.
+
 2005-10-26  Didier Verna  <didier@xemacs.org>
 
 	* gnus-group.el (gnus-group-compact-group): invalidate original
diff --git a/lisp/nnimap.el b/lisp/nnimap.el
index 77f0c00..1da27f1 100644
--- a/lisp/nnimap.el
+++ b/lisp/nnimap.el
@@ -318,6 +318,11 @@ every message in the group, thus making it quite slow.
 Unlike other backends, you do not need to take special care if you
 flip this variable.")
 
+(defvoo nnimap-search-uids-not-since-is-evil nil
+  "If non-nil, avoid \"UID SEARCH UID ... NOT SINCE\" queries when expiring.
+Instead, use \"UID SEARCH SINCE\" to prune the list of expirable
+articles within Gnus.  This seems to be faster on Courier in some cases.")
+
 (defvoo nnimap-expunge-on-close 'always ; 'ask, 'never
   "Whether to expunge a group when it is closed.
 When a IMAP group with articles marked for deletion is closed, this
@@ -1494,6 +1499,21 @@ function is generally only called when Gnus is shutting down."
 			     (gnus-compress-sequence oldarts)) "\\Deleted")
 		       (setq articles (gnus-set-difference
 				       articles oldarts))))))
+		((and nnimap-search-uids-not-since-is-evil (numberp days))
+		 (let* ((all-new-articles
+			 (gnus-compress-sequence
+			  (imap-search (format "SINCE %s"
+					       (nnimap-date-days-ago days)))))
+			(oldartseq
+			 (gnus-range-difference artseq all-new-articles))
+			(oldarts (gnus-uncompress-range oldartseq)))
+		   (when oldarts
+		     (nnimap-expiry-target oldarts group server)
+		     (when (imap-message-flags-add
+			    (imap-range-to-message-set oldartseq)
+			    "\\Deleted")
+		       (setq articles (gnus-set-difference
+				       articles oldarts))))))
 		((numberp days)
 		 (let ((oldarts (imap-search
 				 (format nnimap-expunge-search-string