Update copyright notices for 2013

[gnus] / lisp / gnus-int.el

diff --git a/lisp/gnus-int.el b/lisp/gnus-int.el
index bc98693..81e0252 100644 (file)
--- a/lisp/gnus-int.el
+++ b/lisp/gnus-int.el
@@ -1,6 +1,6 @@
 ;;; gnus-int.el --- backend interface functions for Gnus
 
-;; Copyright (C) 1996-2012 Free Software Foundation, Inc.
+;; Copyright (C) 1996-2013 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; Keywords: news
@@ -249,16 +249,23 @@ If it is down, start it up (again)."
 
 (defvar gnus-backend-trace nil)
 
+(defun gnus-backend-trace (type form)
+  (with-current-buffer (get-buffer-create "*gnus trace*")
+    (buffer-disable-undo)
+    (goto-char (point-max))
+    (insert (format-time-string "%H:%M:%S")
+           (format " %.2fs %s %S\n"
+                   (if (numberp gnus-backend-trace)
+                       (- (float-time) gnus-backend-trace)
+                     0)
+                   type form))
+    (setq gnus-backend-trace (float-time))))
+
 (defun gnus-open-server (gnus-command-method)
   "Open a connection to GNUS-COMMAND-METHOD."
   (when (stringp gnus-command-method)
     (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
-  (when gnus-backend-trace
-    (with-current-buffer (get-buffer-create "*gnus trace*")
-      (buffer-disable-undo)
-      (goto-char (point-max))
-      (insert (format-time-string "%H:%M:%S")
-             (format " %S\n" gnus-command-method))))
+  (gnus-backend-trace :opening gnus-command-method)
   (let ((elem (assoc gnus-command-method gnus-opened-servers))
        (server (gnus-method-to-server-name gnus-command-method)))
     ;; If this method was previously denied, we just return nil.
@@ -333,6 +340,7 @@ If it is down, start it up (again)."
            (save-excursion
              (gnus-agent-possibly-synchronize-flags-server
               gnus-command-method)))
+         (gnus-backend-trace :opened gnus-command-method)
           result)))))
 
 (defun gnus-close-server (gnus-command-method)
@@ -353,9 +361,13 @@ If it is down, start it up (again)."
   "Read and update infos from GNUS-COMMAND-METHOD."
   (when (stringp gnus-command-method)
     (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
-  (funcall (gnus-get-function gnus-command-method 'finish-retrieve-group-infos)
-          (nth 1 gnus-command-method)
-          infos data))
+  (gnus-backend-trace :finishing gnus-command-method)
+  (prog1
+      (funcall (gnus-get-function gnus-command-method
+                                 'finish-retrieve-group-infos)
+              (nth 1 gnus-command-method)
+              infos data)
+    (gnus-backend-trace :finished gnus-command-method)))
 
 (defun gnus-retrieve-group-data-early (gnus-command-method infos)
   "Start early async retrieval of data from GNUS-COMMAND-METHOD."
@@ -416,14 +428,6 @@ If it is down, start it up (again)."
             dont-check
             info)))
 
-(defun gnus-list-active-group (group)
-  "Request active information on GROUP."
-  (let ((gnus-command-method (gnus-find-method-for-group group))
-       (func 'list-active-group))
-    (when (gnus-check-backend-function func group)
-      (funcall (gnus-get-function gnus-command-method func)
-              (gnus-group-real-name group) (nth 1 gnus-command-method)))))
-
 (defun gnus-request-group-description (group)
   "Request a description of GROUP."
   (let ((gnus-command-method (gnus-find-method-for-group group))
@@ -432,14 +436,6 @@ If it is down, start it up (again)."
       (funcall (gnus-get-function gnus-command-method func)
               (gnus-group-real-name group) (nth 1 gnus-command-method)))))
 
-(defun gnus-request-group-articles (group)
-  "Request a list of existing articles in GROUP."
-  (let ((gnus-command-method (gnus-find-method-for-group group))
-       (func 'request-group-articles))
-    (when (gnus-check-backend-function func group)
-      (funcall (gnus-get-function gnus-command-method func)
-              (gnus-group-real-name group) (nth 1 gnus-command-method)))))
-
 (defun gnus-close-group (group)
   "Request the GROUP be closed."
   (let ((gnus-command-method (inline (gnus-find-method-for-group group))))
@@ -587,14 +583,15 @@ This is the string that Gnus uses to identify the group."
   "Warps from an article in a virtual group to the article in its
 real group. Does nothing on a real group."
   (interactive)
-  (let ((gnus-command-method
-        (gnus-find-method-for-group gnus-newsgroup-name)))
-    (or
-     (when (gnus-check-backend-function
-            'warp-to-article (car gnus-command-method))
-       (funcall (gnus-get-function gnus-command-method 'warp-to-article)))
-     (and (bound-and-true-p gnus-registry-enabled)
-         (gnus-try-warping-via-registry)))))
+  (when (gnus-virtual-group-p gnus-newsgroup-name)
+    (let ((gnus-command-method
+           (gnus-find-method-for-group gnus-newsgroup-name)))
+      (or
+       (when (gnus-check-backend-function
+              'warp-to-article (car gnus-command-method))
+         (funcall (gnus-get-function gnus-command-method 'warp-to-article)))
+       (and (bound-and-true-p gnus-registry-enabled)
+            (gnus-try-warping-via-registry))))))
 
 (defun gnus-request-head (article group)
   "Request the head of ARTICLE in GROUP."
@@ -614,7 +611,8 @@ real group. Does nothing on a real group."
            clean-up t))
      ;; Use `head' function.
      ((fboundp head)
-      (setq res (funcall head article (gnus-group-real-name group)
+      (setq res (funcall head article
+                         (and (not gnus-override-method) (gnus-group-real-name group))
                         (nth 1 gnus-command-method))))
      ;; Use `article' function.
      (t
@@ -721,6 +719,10 @@ If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned."
 
 (defun gnus-request-expire-articles (articles group &optional force)
   (let* ((gnus-command-method (gnus-find-method-for-group group))
+         ;; Filter out any negative article numbers; they can't be
+         ;; expired here.
+         (articles
+          (delq nil (mapcar (lambda (n) (and (>= n 0) n)) articles)))
         (gnus-inhibit-demon t)
         (not-deleted
          (funcall
@@ -797,11 +799,6 @@ If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned."
       (gnus-agent-regenerate-group group (list article)))
     result))
 
-(defun gnus-request-associate-buffer (group)
-  (let ((gnus-command-method (gnus-find-method-for-group group)))
-    (funcall (gnus-get-function gnus-command-method 'request-associate-buffer)
-            (gnus-group-real-name group))))
-
 (defun gnus-request-restore-buffer (article group)
   "Request a new buffer restored to the state of ARTICLE."
   (let ((gnus-command-method (gnus-find-method-for-group group)))