From 14c5ba25e75a2377a6f051f0354caa741f3a3abd Mon Sep 17 00:00:00 2001
From: vitaly <vitaly>
Date: Tue, 26 May 2009 15:02:47 +0000
Subject: [PATCH] Remove stale entities

Wl doesn't remove old entities from elmo cache, which are not
referenced by any live message any more. This silently eats
your disk space....
---
 elmo/modb-standard.el |   20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/elmo/modb-standard.el b/elmo/modb-standard.el
index 1ecfcd6..f268c3a 100644
--- a/elmo/modb-standard.el
+++ b/elmo/modb-standard.el
@@ -247,6 +247,23 @@
 			   entities))
       (ignore-errors (delete-file filename)))))
 
+(defun modb-standard-cleanup-stale-entities (modb path)
+  (message "Removing stale entities...")
+  (let* ((entity-regex
+	  (concat "^" modb-standard-entity-filename "-\\([0-9]+\\)"))
+	 (entities (elmo-uniq-list
+		    (mapcar
+		     #'(lambda (x) (/ x modb-standard-divide-number))
+		     (modb-standard-number-list-internal modb))))
+	 (files (mapcar #'(lambda(x)
+			    (when (string-match entity-regex x)
+			      (string-to-int (match-string 1 x))))
+			(directory-files path nil entity-regex))))
+    (dolist (entity (car (elmo-list-diff-nonsortable files entities)))
+      (ignore-errors (delete-file
+		      (expand-file-name
+		       (modb-standard-entity-filename entity) path))))))
+
 (defun modb-standard-save-entity (modb path)
   (let ((modified (modb-generic-message-modified-internal modb)))
     (cond ((listp modified)
@@ -259,7 +276,8 @@
 	     (dolist (section sections)
 	       (modb-standard-save-entity-1 modb path section))))
 	  (modified
-	   (modb-standard-save-entity-1 modb path)))))
+	   (modb-standard-save-entity-1 modb path))))
+  (modb-standard-cleanup-stale-entities modb path))
 
 ;;; Implement
 ;;
-- 
1.7.10.4