[evolution] More detailed runtime warning on message list pre-sorting

[Milan Crha <mcrha src gnome org>]

commit e101e63be94da933fe799f0afd754697fcf6173f
Author: Milan Crha <mcrha redhat com>
Date:   Fri Oct 29 14:01:19 2010 +0200

    More detailed runtime warning on message list pre-sorting

 mail/message-list.c |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/mail/message-list.c b/mail/message-list.c
index 68e05fc..fc1d689 100644
--- a/mail/message-list.c
+++ b/mail/message-list.c
@@ -4401,10 +4401,18 @@ ml_sort_uids_by_tree (MessageList *ml, GPtrArray *uids)
 
 	for (i = 0; i < uids->len; i++) {
 		gchar *uid;
-		struct sort_message_info_data *md = g_new0 (struct sort_message_info_data, 1);
+		CamelMessageInfo *mi;
+		struct sort_message_info_data *md;
 
 		uid = g_ptr_array_index (uids, i);
-		md->mi = camel_folder_get_message_info (ml->folder, uid);
+		mi = camel_folder_get_message_info (ml->folder, uid);
+		if (!mi) {
+			g_warning ("%s: Cannot find uid '%s' in folder '%s'", G_STRFUNC, uid, camel_folder_get_full_name (ml->folder));
+			continue;
+		}
+
+		md = g_new0 (struct sort_message_info_data, 1);
+		md->mi = mi;
 		md->values = g_ptr_array_sized_new (len);
 
 		g_hash_table_insert (sort_data.message_infos, uid, md);