1 ;;; gnus-agent.el --- unplugged support for Semi-gnus
2 ;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003
3 ;; Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
6 ;; Tatsuya Ichikawa <t-ichi@po.shiojiri.ne.jp>
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; GNU Emacs is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
28 (eval-when-compile (require 'cl))
29 (eval-when-compile (require 'gnus-clfns))
40 (if (featurep 'xemacs)
43 (require 'gnus-group))
46 (autoload 'gnus-server-update-server "gnus-srvr")
47 (autoload 'gnus-agent-customize-category "gnus-cus")
50 (defcustom gnus-agent-directory (nnheader-concat gnus-directory "agent/")
51 "Where the Gnus agent will store its files."
55 (defcustom gnus-agent-plugged-hook nil
56 "Hook run when plugging into the network."
60 (defcustom gnus-agent-unplugged-hook nil
61 "Hook run when unplugging from the network."
65 (defcustom gnus-agent-fetched-hook nil
66 "Hook run when finished fetching articles."
70 (defcustom gnus-agent-handle-level gnus-level-subscribed
71 "Groups on levels higher than this variable will be ignored by the Agent."
75 (defcustom gnus-agent-expire-days 7
76 "Read articles older than this will be expired."
78 :type '(number :tag "days"))
80 (defcustom gnus-agent-expire-all nil
81 "If non-nil, also expire unread, ticked and dormant articles.
82 If nil, only read articles will be expired."
86 (defcustom gnus-agent-group-mode-hook nil
87 "Hook run in Agent group minor modes."
91 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
92 (when (featurep 'xemacs)
93 (add-hook 'gnus-agent-group-mode-hook 'gnus-xmas-agent-group-menu-add))
95 (defcustom gnus-agent-summary-mode-hook nil
96 "Hook run in Agent summary minor modes."
100 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
101 (when (featurep 'xemacs)
102 (add-hook 'gnus-agent-summary-mode-hook 'gnus-xmas-agent-summary-menu-add))
104 (defcustom gnus-agent-server-mode-hook nil
105 "Hook run in Agent summary minor modes."
109 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
110 (when (featurep 'xemacs)
111 (add-hook 'gnus-agent-server-mode-hook 'gnus-xmas-agent-server-menu-add))
113 (defcustom gnus-agent-confirmation-function 'y-or-n-p
114 "Function to confirm when error happens."
119 (defcustom gnus-agent-large-newsgroup nil
120 "*The number of articles which indicates a large newsgroup.
121 If the number of unread articles exceeds it, The number of articles to be
122 fetched will be limited to it. If not a positive integer, never consider it."
124 :type '(choice (const nil)
125 (integer :tag "Number")))
127 (defcustom gnus-agent-synchronize-flags 'ask
128 "Indicate if flags are synchronized when you plug in.
129 If this is `ask' the hook will query the user."
131 :type '(choice (const :tag "Always" t)
132 (const :tag "Never" nil)
133 (const :tag "Ask" ask))
136 (defcustom gnus-agent-go-online 'ask
137 "Indicate if offline servers go online when you plug in.
138 If this is `ask' the hook will query the user."
140 :type '(choice (const :tag "Always" t)
141 (const :tag "Never" nil)
142 (const :tag "Ask" ask))
145 (defcustom gnus-agent-mark-unread-after-downloaded t
146 "Indicate whether to mark articles unread after downloaded."
151 (defcustom gnus-agent-download-marks '(download)
152 "Marks for downloading."
154 :type '(repeat (symbol :tag "Mark"))
157 (defcustom gnus-agent-consider-all-articles nil
158 "If non-nil, consider also the read articles for downloading."
163 (defcustom gnus-agent-max-fetch-size 10000000 ;; 10 Mb
164 "Chunk size for `gnus-agent-fetch-session'.
165 The function will split its article fetches into chunks smaller than
170 (defcustom gnus-agent-enable-expiration 'ENABLE
171 "The default expiration state for each group.
172 When set to ENABLE, the default, `gnus-agent-expire' will expire old
173 contents from a group's local storage. This value may be overridden
174 to disable expiration in specific categories, topics, and groups. Of
175 course, you could change gnus-agent-enable-expiration to DISABLE then
176 enable expiration per categories, topics, and groups."
178 :type '(radio (const :format "Enable " ENABLE)
179 (const :format "Disable " DISABLE)))
181 (defcustom gnus-agent-expire-unagentized-dirs t
182 "*Whether expiration should expire in unagentized directories.
183 Have gnus-agent-expire scan the directories under
184 \(gnus-agent-directory) for groups that are no longer agentized.
185 When found, offer to remove them."
189 ;;; Internal variables
191 (defvar gnus-agent-history-buffers nil)
192 (defvar gnus-agent-buffer-alist nil)
193 (defvar gnus-agent-article-alist nil
194 "An assoc list identifying the articles whose headers have been fetched.
195 If successfully fetched, these headers will be stored in the group's overview
196 file. The key of each assoc pair is the article ID, the value of each assoc
197 pair is a flag indicating whether the identified article has been downloaded
198 \(gnus-agent-fetch-articles sets the value to the day of the download).
200 1) The last element of this list can not be expired as some
201 routines (for example, get-agent-fetch-headers) use the last
202 value to track which articles have had their headers retrieved.
203 2) The function `gnus-agent-regenerate' may destructively modify the value.")
204 (defvar gnus-agent-group-alist nil)
205 (defvar gnus-category-alist nil)
206 (defvar gnus-agent-current-history nil)
207 (defvar gnus-agent-overview-buffer nil)
208 (defvar gnus-category-predicate-cache nil)
209 (defvar gnus-category-group-cache nil)
210 (defvar gnus-agent-spam-hashtb nil)
211 (defvar gnus-agent-file-name nil)
212 (defvar gnus-agent-send-mail-function nil)
213 (defvar gnus-agent-file-coding-system 'raw-text)
214 (defvar gnus-agent-file-loading-cache nil)
215 (defvar gnus-agent-file-header-cache nil)
217 (defvar gnus-agent-auto-agentize-methods '(nntp nnimap)
218 "Initially, all servers from these methods are agentized.
219 The user may remove or add servers using the Server buffer. See Info
220 node `(gnus)Server Buffer'.")
223 (defvar gnus-headers)
230 (defun gnus-open-agent ()
232 (gnus-agent-read-servers)
234 (gnus-agent-create-buffer)
235 (add-hook 'gnus-group-mode-hook 'gnus-agent-mode)
236 (add-hook 'gnus-summary-mode-hook 'gnus-agent-mode)
237 (add-hook 'gnus-server-mode-hook 'gnus-agent-mode))
239 (defun gnus-agent-create-buffer ()
240 (if (gnus-buffer-live-p gnus-agent-overview-buffer)
242 (setq gnus-agent-overview-buffer
243 (gnus-get-buffer-create " *Gnus agent overview*"))
244 (with-current-buffer gnus-agent-overview-buffer
245 (set-buffer-multibyte t))
248 (gnus-add-shutdown 'gnus-close-agent 'gnus)
250 (defun gnus-close-agent ()
251 (setq gnus-category-predicate-cache nil
252 gnus-category-group-cache nil
253 gnus-agent-spam-hashtb nil)
254 (gnus-kill-buffer gnus-agent-overview-buffer))
257 ;;; Utility functions
260 (defun gnus-agent-read-file (file)
261 "Load FILE and do a `read' there."
264 (nnheader-insert-file-contents file)
265 (goto-char (point-min))
266 (read (current-buffer)))))
268 (defsubst gnus-agent-method ()
269 (concat (symbol-name (car gnus-command-method)) "/"
270 (if (equal (cadr gnus-command-method) "")
272 (cadr gnus-command-method))))
274 (defsubst gnus-agent-directory ()
275 "The name of the Gnus agent directory."
276 (nnheader-concat gnus-agent-directory
277 (nnheader-translate-file-chars (gnus-agent-method)) "/"))
279 (defun gnus-agent-lib-file (file)
280 "The full name of the Gnus agent library FILE."
281 (expand-file-name file
282 (file-name-as-directory
283 (expand-file-name "agent.lib" (gnus-agent-directory)))))
285 (defun gnus-agent-cat-set-property (category property value)
287 (setcdr (or (assq property category)
288 (let ((cell (cons property nil)))
289 (setcdr category (cons cell (cdr category)))
291 (let ((category category))
292 (while (cond ((eq property (caadr category))
293 (setcdr category (cddr category))
296 (setq category (cdr category)))))))
300 (defmacro gnus-agent-cat-defaccessor (name prop-name)
301 "Define accessor and setter methods for manipulating a list of the form
302 \(NAME (PROPERTY1 VALUE1) ... (PROPERTY_N VALUE_N)).
303 Given the call (gnus-agent-cat-defaccessor func PROPERTY1), the list may be
304 manipulated as follows:
305 (func LIST): Returns VALUE1
306 (setf (func LIST) NEW_VALUE1): Replaces VALUE1 with NEW_VALUE1."
307 `(progn (defmacro ,name (category)
308 (list (quote cdr) (list (quote assq)
309 (quote (quote ,prop-name)) category)))
311 (define-setf-method ,name (category)
312 (let* ((--category--temp-- (make-symbol "--category--"))
313 (--value--temp-- (make-symbol "--value--")))
314 (list (list --category--temp--) ; temporary-variables
315 (list category) ; value-forms
316 (list --value--temp--) ; store-variables
317 (let* ((category --category--temp--) ; store-form
318 (value --value--temp--))
319 (list (quote gnus-agent-cat-set-property)
321 (quote (quote ,prop-name))
323 (list (quote ,name) --category--temp--) ; access-form
327 (defmacro gnus-agent-cat-name (category)
330 (gnus-agent-cat-defaccessor
331 gnus-agent-cat-days-until-old agent-days-until-old)
332 (gnus-agent-cat-defaccessor
333 gnus-agent-cat-enable-expiration agent-enable-expiration)
334 (gnus-agent-cat-defaccessor
335 gnus-agent-cat-groups agent-groups)
336 (gnus-agent-cat-defaccessor
337 gnus-agent-cat-high-score agent-high-score)
338 (gnus-agent-cat-defaccessor
339 gnus-agent-cat-length-when-long agent-length-when-long)
340 (gnus-agent-cat-defaccessor
341 gnus-agent-cat-length-when-short agent-length-when-short)
342 (gnus-agent-cat-defaccessor
343 gnus-agent-cat-low-score agent-low-score)
344 (gnus-agent-cat-defaccessor
345 gnus-agent-cat-predicate agent-predicate)
346 (gnus-agent-cat-defaccessor
347 gnus-agent-cat-score-file agent-score-file)
348 (gnus-agent-cat-defaccessor
349 gnus-agent-cat-disable-undownloaded-faces agent-disable-undownloaded-faces)
352 (defsetf gnus-agent-cat-groups (category) (groups)
353 (list 'gnus-agent-set-cat-groups category groups)))
355 (defun gnus-agent-set-cat-groups (category groups)
356 (unless (eq groups 'ignore)
358 (old-g (gnus-agent-cat-groups category)))
359 (cond ((eq new-g old-g)
360 ;; gnus-agent-add-group is fiddling with the group
361 ;; list. Still, Im done.
364 ((eq new-g (cdr old-g))
365 ;; gnus-agent-add-group is fiddling with the group list
366 (setcdr (or (assq 'agent-groups category)
367 (let ((cell (cons 'agent-groups nil)))
368 (setcdr category (cons cell (cdr category)))
371 (let ((groups groups))
373 (let* ((group (pop groups))
374 (old-category (gnus-group-category group)))
375 (if (eq category old-category)
377 (setf (gnus-agent-cat-groups old-category)
378 (delete group (gnus-agent-cat-groups
380 ;; Purge cache as preceeding loop invalidated it.
381 (setq gnus-category-group-cache nil))
383 (setcdr (or (assq 'agent-groups category)
384 (let ((cell (cons 'agent-groups nil)))
385 (setcdr category (cons cell (cdr category)))
388 (defsubst gnus-agent-cat-make (name &optional default-agent-predicate)
389 (list name `(agent-predicate . ,(or default-agent-predicate 'false))))
391 ;;; Fetching setup functions.
393 (defun gnus-agent-start-fetch ()
394 "Initialize data structures for efficient fetching."
395 (gnus-agent-create-buffer))
397 (defun gnus-agent-stop-fetch ()
398 "Save all data structures and clean up."
399 (setq gnus-agent-spam-hashtb nil)
401 (set-buffer nntp-server-buffer)
404 (defmacro gnus-agent-with-fetch (&rest forms)
407 (let ((gnus-agent-fetching t))
408 (gnus-agent-start-fetch)
410 (gnus-agent-stop-fetch)))
412 (put 'gnus-agent-with-fetch 'lisp-indent-function 0)
413 (put 'gnus-agent-with-fetch 'edebug-form-spec '(body))
415 (defmacro gnus-agent-append-to-list (tail value)
416 `(setq ,tail (setcdr ,tail (cons ,value nil))))
418 (defmacro gnus-agent-message (level &rest args)
419 `(if (<= ,level gnus-verbose)
426 (defvar gnus-agent-mode-hook nil
427 "Hook run when installing agent mode.")
429 (defvar gnus-agent-mode nil)
430 (defvar gnus-agent-mode-status '(gnus-agent-mode " Plugged"))
432 (defun gnus-agent-mode ()
433 "Minor mode for providing a agent support in Gnus buffers."
434 (let* ((buffer (progn (string-match "^gnus-\\(.*\\)-mode$"
435 (symbol-name major-mode))
436 (match-string 1 (symbol-name major-mode))))
437 (mode (intern (format "gnus-agent-%s-mode" buffer))))
438 (set (make-local-variable 'gnus-agent-mode) t)
440 (set (make-local-variable mode) t)
442 (when (gnus-visual-p 'agent-menu 'menu)
443 (funcall (intern (format "gnus-agent-%s-make-menu-bar" buffer))))
444 (unless (assq 'gnus-agent-mode minor-mode-alist)
445 (push gnus-agent-mode-status minor-mode-alist))
446 (unless (assq mode minor-mode-map-alist)
447 (push (cons mode (symbol-value (intern (format "gnus-agent-%s-mode-map"
449 minor-mode-map-alist))
450 (when (eq major-mode 'gnus-group-mode)
451 (let ((init-plugged gnus-plugged)
452 (gnus-agent-go-online nil))
453 ;; g-a-t-p does nothing when gnus-plugged isn't changed.
454 ;; Therefore, make certain that the current value does not
455 ;; match the desired initial value.
456 (setq gnus-plugged :unknown)
457 (gnus-agent-toggle-plugged init-plugged)))
458 (gnus-run-hooks 'gnus-agent-mode-hook
459 (intern (format "gnus-agent-%s-mode-hook" buffer)))))
461 (defvar gnus-agent-group-mode-map (make-sparse-keymap))
462 (gnus-define-keys gnus-agent-group-mode-map
463 "Ju" gnus-agent-fetch-groups
464 "Jc" gnus-enter-category-buffer
465 "Jj" gnus-agent-toggle-plugged
466 "Js" gnus-agent-fetch-session
467 "JY" gnus-agent-synchronize-flags
468 "JS" gnus-group-send-queue
469 "Ja" gnus-agent-add-group
470 "Jr" gnus-agent-remove-group
471 "Jo" gnus-agent-toggle-group-plugged)
473 (defun gnus-agent-group-make-menu-bar ()
474 (unless (boundp 'gnus-agent-group-menu)
476 gnus-agent-group-menu gnus-agent-group-mode-map ""
478 ["Toggle plugged" gnus-agent-toggle-plugged t]
479 ["Toggle group plugged" gnus-agent-toggle-group-plugged t]
480 ["List categories" gnus-enter-category-buffer t]
481 ["Add (current) group to category" gnus-agent-add-group t]
482 ["Remove (current) group from category" gnus-agent-remove-group t]
483 ["Send queue" gnus-group-send-queue gnus-plugged]
485 ["All" gnus-agent-fetch-session gnus-plugged]
486 ["Group" gnus-agent-fetch-group gnus-plugged])
487 ["Synchronize flags" gnus-agent-synchronize-flags t]
490 (defvar gnus-agent-summary-mode-map (make-sparse-keymap))
491 (gnus-define-keys gnus-agent-summary-mode-map
492 "Jj" gnus-agent-toggle-plugged
493 "Ju" gnus-agent-summary-fetch-group
494 "JS" gnus-agent-fetch-group
495 "Js" gnus-agent-summary-fetch-series
496 "J#" gnus-agent-mark-article
497 "J\M-#" gnus-agent-unmark-article
498 "@" gnus-agent-toggle-mark
499 "Jc" gnus-agent-catchup)
501 (defun gnus-agent-summary-make-menu-bar ()
502 (unless (boundp 'gnus-agent-summary-menu)
504 gnus-agent-summary-menu gnus-agent-summary-mode-map ""
506 ["Toggle plugged" gnus-agent-toggle-plugged t]
507 ["Mark as downloadable" gnus-agent-mark-article t]
508 ["Unmark as downloadable" gnus-agent-unmark-article t]
509 ["Toggle mark" gnus-agent-toggle-mark t]
510 ["Fetch downloadable" gnus-agent-summary-fetch-group t]
511 ["Catchup undownloaded" gnus-agent-catchup t]))))
513 (defvar gnus-agent-server-mode-map (make-sparse-keymap))
514 (gnus-define-keys gnus-agent-server-mode-map
515 "Jj" gnus-agent-toggle-plugged
516 "Ja" gnus-agent-add-server
517 "Jr" gnus-agent-remove-server)
519 (defun gnus-agent-server-make-menu-bar ()
520 (unless (boundp 'gnus-agent-server-menu)
522 gnus-agent-server-menu gnus-agent-server-mode-map ""
524 ["Toggle plugged" gnus-agent-toggle-plugged t]
525 ["Add" gnus-agent-add-server t]
526 ["Remove" gnus-agent-remove-server t]))))
528 (defun gnus-agent-make-mode-line-string (string mouse-button mouse-func)
529 (if (and (fboundp 'propertize)
530 (fboundp 'make-mode-line-mouse-map))
531 (propertize string 'local-map
532 (make-mode-line-mouse-map mouse-button mouse-func))
535 (defun gnus-agent-toggle-plugged (set-to)
536 "Toggle whether Gnus is unplugged or not."
537 (interactive (list (not gnus-plugged)))
538 (cond ((eq set-to gnus-plugged)
541 (setq gnus-plugged set-to)
542 (gnus-run-hooks 'gnus-agent-plugged-hook)
543 (setcar (cdr gnus-agent-mode-status)
544 (gnus-agent-make-mode-line-string " Plugged"
546 'gnus-agent-toggle-plugged))
547 (gnus-agent-go-online gnus-agent-go-online)
548 (gnus-agent-possibly-synchronize-flags))
550 (gnus-agent-close-connections)
551 (setq gnus-plugged set-to)
552 (gnus-run-hooks 'gnus-agent-unplugged-hook)
553 (setcar (cdr gnus-agent-mode-status)
554 (gnus-agent-make-mode-line-string " Unplugged"
556 'gnus-agent-toggle-plugged))))
557 (force-mode-line-update)
558 (set-buffer-modified-p t))
560 (defmacro gnus-agent-while-plugged (&rest body)
561 `(let ((original-gnus-plugged gnus-plugged))
563 (progn (gnus-agent-toggle-plugged t)
565 (gnus-agent-toggle-plugged original-gnus-plugged))))
567 (put 'gnus-agent-while-plugged 'lisp-indent-function 0)
568 (put 'gnus-agent-while-plugged 'edebug-form-spec '(body))
570 (defun gnus-agent-close-connections ()
571 "Close all methods covered by the Gnus agent."
572 (let ((methods (gnus-agent-covered-methods)))
574 (gnus-close-server (pop methods)))))
577 (defun gnus-unplugged ()
578 "Start Gnus unplugged."
580 (setq gnus-plugged nil)
584 (defun gnus-plugged ()
585 "Start Gnus plugged."
587 (setq gnus-plugged t)
591 (defun gnus-slave-unplugged (&optional arg)
592 "Read news as a slave unplugged."
594 (setq gnus-plugged nil)
595 (gnus arg nil 'slave))
598 (defun gnus-agentize ()
599 "Allow Gnus to be an offline newsreader.
601 The gnus-agentize function is now called internally by gnus when
602 gnus-agent is set. If you wish to avoid calling gnus-agentize,
603 customize gnus-agent to nil.
605 This will modify the `gnus-setup-news-hook', and
606 `message-send-mail-real-function' variables, and install the Gnus agent
607 minor mode in all Gnus buffers."
610 (add-hook 'gnus-setup-news-hook 'gnus-agent-queue-setup)
611 (unless gnus-agent-send-mail-function
612 (setq gnus-agent-send-mail-function
613 (or message-send-mail-real-function
614 message-send-mail-function)
615 message-send-mail-real-function 'gnus-agent-send-mail))
617 (unless gnus-agent-covered-methods
619 (lambda (server-or-method)
620 (let ((method (gnus-server-to-method server-or-method)))
621 (when (memq (car method)
622 gnus-agent-auto-agentize-methods)
623 (push (gnus-method-to-server method)
624 gnus-agent-covered-methods)
625 (setq gnus-agent-method-p-cache nil))))
626 (cons gnus-select-method gnus-secondary-select-methods))))
628 (defun gnus-agent-queue-setup (&optional group-name)
629 "Make sure the queue group exists.
630 Optional arg GROUP-NAME allows to specify another group."
631 (unless (gnus-gethash (format "nndraft:%s" (or group-name "queue"))
633 (gnus-request-create-group (or group-name "queue") '(nndraft ""))
634 (let ((gnus-level-default-subscribed 1))
635 (gnus-subscribe-group (format "nndraft:%s" (or group-name "queue"))
637 (gnus-group-set-parameter
638 (format "nndraft:%s" (or group-name "queue"))
639 'gnus-dummy '((gnus-draft-mode)))))
641 (defun gnus-agent-send-mail ()
643 (funcall gnus-agent-send-mail-function)
644 (goto-char (point-min))
646 (concat "^" (regexp-quote mail-header-separator) "\n"))
648 (gnus-agent-insert-meta-information 'mail)
649 (gnus-request-accept-article "nndraft:queue" nil t t)))
651 (defun gnus-agent-insert-meta-information (type &optional method)
652 "Insert meta-information into the message that says how it's to be posted.
653 TYPE can be either `mail' or `news'. If the latter, then METHOD can
656 (message-remove-header gnus-agent-meta-information-header)
657 (goto-char (point-min))
658 (insert gnus-agent-meta-information-header ": "
659 (symbol-name type) " " (format "%S" method)
662 (while (search-backward "\n" nil t)
663 (replace-match "\\n" t t))))
665 (defun gnus-agent-restore-gcc ()
666 "Restore GCC field from saved header."
668 (goto-char (point-min))
669 (while (re-search-forward (concat gnus-agent-gcc-header ":") nil t)
670 (replace-match "Gcc:" 'fixedcase))))
672 (defun gnus-agent-any-covered-gcc ()
674 (message-narrow-to-headers)
675 (let* ((gcc (mail-fetch-field "gcc" nil t))
677 (mapcar 'gnus-inews-group-method
678 (message-unquote-tokens
679 (message-tokenize-header
682 (while (and (not covered) methods)
683 (setq covered (gnus-agent-method-p (car methods))
684 methods (cdr methods)))
688 (defun gnus-agent-possibly-save-gcc ()
689 "Save GCC if Gnus is unplugged."
690 (when (and (not gnus-plugged) (gnus-agent-any-covered-gcc))
692 (goto-char (point-min))
693 (let ((case-fold-search t))
694 (while (re-search-forward "^gcc:" nil t)
695 (replace-match (concat gnus-agent-gcc-header ":") 'fixedcase))))))
697 (defun gnus-agent-possibly-do-gcc ()
698 "Do GCC if Gnus is plugged."
699 (when (or gnus-plugged (not (gnus-agent-any-covered-gcc)))
700 (gnus-inews-do-gcc)))
703 ;;; Group mode commands
706 (defun gnus-agent-fetch-groups (n)
707 "Put all new articles in the current groups into the Agent."
710 (error "Groups can't be fetched when Gnus is unplugged"))
711 (gnus-group-iterate n 'gnus-agent-fetch-group))
713 (defun gnus-agent-fetch-group (&optional group)
714 "Put all new articles in GROUP into the Agent."
715 (interactive (list (gnus-group-group-name)))
716 (setq group (or group gnus-newsgroup-name))
718 (error "No group on the current line"))
720 (gnus-agent-while-plugged
721 (let ((gnus-command-method (gnus-find-method-for-group group)))
722 (gnus-agent-with-fetch
723 (gnus-agent-fetch-group-1 group gnus-command-method)
724 (gnus-message 5 "Fetching %s...done" group)))))
726 (defun gnus-agent-add-group (category arg)
727 "Add the current group to an agent category."
733 (mapcar (lambda (cat) (list (symbol-name (car cat))))
737 (let ((cat (assq category gnus-category-alist))
739 (gnus-group-iterate arg
741 (when (gnus-agent-cat-groups (setq c (gnus-group-category group)))
742 (setf (gnus-agent-cat-groups c)
743 (delete group (gnus-agent-cat-groups c))))
744 (push group groups)))
745 (setf (gnus-agent-cat-groups cat)
746 (nconc (gnus-agent-cat-groups cat) groups))
747 (gnus-category-write)))
749 (defun gnus-agent-remove-group (arg)
750 "Remove the current group from its agent category, if any."
753 (gnus-group-iterate arg
755 (when (gnus-agent-cat-groups (setq c (gnus-group-category group)))
756 (setf (gnus-agent-cat-groups c)
757 (delete group (gnus-agent-cat-groups c))))))
758 (gnus-category-write)))
760 (defun gnus-agent-synchronize-flags ()
761 "Synchronize unplugged flags with servers."
764 (dolist (gnus-command-method (gnus-agent-covered-methods))
765 (when (file-exists-p (gnus-agent-lib-file "flags"))
766 (gnus-agent-synchronize-flags-server gnus-command-method)))))
768 (defun gnus-agent-possibly-synchronize-flags ()
769 "Synchronize flags according to `gnus-agent-synchronize-flags'."
772 (dolist (gnus-command-method (gnus-agent-covered-methods))
773 (when (file-exists-p (gnus-agent-lib-file "flags"))
774 (gnus-agent-possibly-synchronize-flags-server gnus-command-method)))))
776 (defun gnus-agent-synchronize-flags-server (method)
777 "Synchronize flags set when unplugged for server."
778 (let ((gnus-command-method method))
779 (when (file-exists-p (gnus-agent-lib-file "flags"))
780 (set-buffer (get-buffer-create " *Gnus Agent flag synchronize*"))
782 (nnheader-insert-file-contents (gnus-agent-lib-file "flags"))
783 (if (null (gnus-check-server gnus-command-method))
784 (gnus-message 1 "Couldn't open server %s" (nth 1 gnus-command-method))
786 (if (null (eval (read (current-buffer))))
788 (write-file (gnus-agent-lib-file "flags"))
789 (error "Couldn't set flags from file %s"
790 (gnus-agent-lib-file "flags"))))
791 (delete-file (gnus-agent-lib-file "flags")))
794 (defun gnus-agent-possibly-synchronize-flags-server (method)
795 "Synchronize flags for server according to `gnus-agent-synchronize-flags'."
796 (when (or (and gnus-agent-synchronize-flags
797 (not (eq gnus-agent-synchronize-flags 'ask)))
798 (and (eq gnus-agent-synchronize-flags 'ask)
799 (gnus-y-or-n-p (format "Synchronize flags on server `%s'? "
801 (gnus-agent-synchronize-flags-server method)))
804 ;;; Server mode commands
807 (defun gnus-agent-add-server ()
808 "Enroll SERVER in the agent program."
810 (let* ((server (gnus-server-server-name))
811 (named-server (gnus-server-named-server))
813 (gnus-server-get-method nil server))))
815 (error "No server on the current line"))
817 (when (gnus-agent-method-p method)
818 (error "Server already in the agent program"))
820 (push named-server gnus-agent-covered-methods)
822 (setq gnus-agent-method-p-cache nil)
823 (gnus-server-update-server server)
824 (gnus-agent-write-servers)
825 (gnus-message 1 "Entered %s into the Agent" server)))
827 (defun gnus-agent-remove-server ()
828 "Remove SERVER from the agent program."
830 (let* ((server (gnus-server-server-name))
831 (named-server (gnus-server-named-server)))
833 (error "No server on the current line"))
835 (unless (member named-server gnus-agent-covered-methods)
836 (error "Server not in the agent program"))
838 (setq gnus-agent-covered-methods
839 (delete named-server gnus-agent-covered-methods)
840 gnus-agent-method-p-cache nil)
842 (gnus-server-update-server server)
843 (gnus-agent-write-servers)
844 (gnus-message 1 "Removed %s from the agent" server)))
846 (defun gnus-agent-read-servers ()
847 "Read the alist of covered servers."
848 (setq gnus-agent-covered-methods
849 (gnus-agent-read-file
850 (nnheader-concat gnus-agent-directory "lib/servers"))
851 gnus-agent-method-p-cache nil)
853 ;; I am called so early in start-up that I can not validate server
854 ;; names. When that is the case, I skip the validation. That is
855 ;; alright as the gnus startup code calls the validate methods
857 (if gnus-server-alist
858 (gnus-agent-read-servers-validate)))
860 (defun gnus-agent-read-servers-validate ()
861 (mapcar (lambda (server-or-method)
862 (let* ((server (if (stringp server-or-method)
864 (gnus-method-to-server server-or-method)))
865 (method (gnus-server-to-method server)))
867 (unless (member server gnus-agent-covered-methods)
868 (push server gnus-agent-covered-methods)
869 (setq gnus-agent-method-p-cache nil))
870 (gnus-message 1 "Ignoring disappeared server `%s'" server))))
871 (prog1 gnus-agent-covered-methods
872 (setq gnus-agent-covered-methods nil))))
874 (defun gnus-agent-read-servers-validate-native (native-method)
875 (setq gnus-agent-covered-methods
876 (mapcar (lambda (method)
878 (equal method native-method))
880 method)) gnus-agent-covered-methods)))
882 (defun gnus-agent-write-servers ()
883 "Write the alist of covered servers."
884 (gnus-make-directory (nnheader-concat gnus-agent-directory "lib"))
885 (let ((coding-system-for-write nnheader-file-coding-system)
886 (output-coding-system nnheader-file-coding-system)
887 (file-name-coding-system nnmail-pathname-coding-system)
888 (pathname-coding-system nnmail-pathname-coding-system))
889 (with-temp-file (nnheader-concat gnus-agent-directory "lib/servers")
890 (prin1 gnus-agent-covered-methods
897 (defun gnus-agent-mark-article (n &optional unmark)
898 "Mark the next N articles as downloadable.
899 If N is negative, mark backward instead. If UNMARK is non-nil, remove
900 the mark instead. The difference between N and the actual number of
901 articles marked is returned."
903 (let ((backward (< n 0))
908 (gnus-summary-set-agent-mark
909 (gnus-summary-article-number) unmark)
910 (zerop (gnus-summary-next-subject (if backward -1 1) nil t))))
913 (gnus-message 7 "No more articles"))
914 (gnus-summary-recenter)
915 (gnus-summary-position-point)
918 (defun gnus-agent-unmark-article (n)
919 "Remove the downloadable mark from the next N articles.
920 If N is negative, unmark backward instead. The difference between N and
921 the actual number of articles unmarked is returned."
923 (gnus-agent-mark-article n t))
925 (defun gnus-agent-toggle-mark (n)
926 "Toggle the downloadable mark from the next N articles.
927 If N is negative, toggle backward instead. The difference between N and
928 the actual number of articles toggled is returned."
930 (gnus-agent-mark-article n 'toggle))
932 (defun gnus-summary-set-agent-mark (article &optional unmark)
933 "Mark ARTICLE as downloadable. If UNMARK is nil, article is marked.
934 When UNMARK is t, the article is unmarked. For any other value, the
935 article's mark is toggled."
936 (let ((unmark (cond ((eq nil unmark)
941 (memq article gnus-newsgroup-downloadable)))))
942 (when (gnus-summary-goto-subject article nil t)
943 (gnus-summary-update-mark
946 (setq gnus-newsgroup-downloadable
947 (delq article gnus-newsgroup-downloadable))
948 (gnus-article-mark article))
950 (setq gnus-newsgroup-downloadable
951 (gnus-add-to-sorted-list gnus-newsgroup-downloadable article))
952 gnus-downloadable-mark)
956 (defun gnus-agent-get-undownloaded-list ()
957 "Construct list of articles that have not been downloaded."
958 (let ((gnus-command-method (gnus-find-method-for-group gnus-newsgroup-name)))
959 (when (set (make-local-variable 'gnus-newsgroup-agentized)
960 (gnus-agent-method-p gnus-command-method))
961 (let* ((alist (gnus-agent-load-alist gnus-newsgroup-name))
962 (headers (sort (mapcar (lambda (h)
963 (mail-header-number h))
964 gnus-newsgroup-headers) '<))
965 (cached (and gnus-use-cache gnus-newsgroup-cached))
966 (undownloaded (list nil))
967 (tail-undownloaded undownloaded)
968 (unfetched (list nil))
969 (tail-unfetched unfetched))
970 (while (and alist headers)
971 (let ((a (caar alist))
974 ;; Ignore IDs in the alist that are not being
975 ;; displayed in the summary.
976 (setq alist (cdr alist)))
978 ;; Headers that are not in the alist should be
979 ;; fictious (see nnagent-retrieve-headers); they
980 ;; imply that this article isn't in the agent.
981 (gnus-agent-append-to-list tail-undownloaded h)
982 (gnus-agent-append-to-list tail-unfetched h)
983 (setq headers (cdr headers)))
985 (setq alist (cdr alist))
986 (setq headers (cdr headers))
987 nil ; ignore already downloaded
990 (setq alist (cdr alist))
991 (setq headers (cdr headers))
993 ;; This article isn't in the agent. Check to see
994 ;; if it is in the cache. If it is, it's been
996 (while (and cached (< (car cached) a))
997 (setq cached (cdr cached)))
998 (unless (equal a (car cached))
999 (gnus-agent-append-to-list tail-undownloaded a))))))
1002 (let ((num (pop headers)))
1003 (gnus-agent-append-to-list tail-undownloaded num)
1004 (gnus-agent-append-to-list tail-unfetched num)))
1006 (setq gnus-newsgroup-undownloaded (cdr undownloaded)
1007 gnus-newsgroup-unfetched (cdr unfetched))))))
1009 (defun gnus-agent-catchup ()
1010 "Mark as read all unhandled articles.
1011 An article is unhandled if it is neither cached, nor downloaded, nor
1015 (let ((articles gnus-newsgroup-undownloaded))
1016 (when (or gnus-newsgroup-downloadable
1017 gnus-newsgroup-cached)
1018 (setq articles (gnus-sorted-ndifference
1019 (gnus-sorted-ndifference
1020 (gnus-copy-sequence articles)
1021 gnus-newsgroup-downloadable)
1022 gnus-newsgroup-cached)))
1025 (gnus-summary-mark-article
1026 (pop articles) gnus-catchup-mark)))
1027 (gnus-summary-position-point)))
1029 (defun gnus-agent-summary-fetch-series ()
1031 (when gnus-newsgroup-processable
1032 (setq gnus-newsgroup-downloadable
1033 (let* ((dl gnus-newsgroup-downloadable)
1034 (gnus-newsgroup-downloadable
1035 (sort (gnus-copy-sequence gnus-newsgroup-processable) '<))
1036 (fetched-articles (gnus-agent-summary-fetch-group)))
1037 ;; The preceeding call to (gnus-agent-summary-fetch-group)
1038 ;; updated gnus-newsgroup-downloadable to remove each
1039 ;; article successfully fetched.
1041 ;; For each article that I processed, remove its
1042 ;; processable mark IF the article is no longer
1043 ;; downloadable (i.e. it's already downloaded)
1044 (dolist (article gnus-newsgroup-processable)
1045 (unless (memq article gnus-newsgroup-downloadable)
1046 (gnus-summary-remove-process-mark article)))
1047 (gnus-sorted-ndifference dl fetched-articles)))))
1049 (defun gnus-agent-summary-fetch-group (&optional all)
1050 "Fetch the downloadable articles in the group.
1051 Optional arg ALL, if non-nil, means to fetch all articles."
1054 (if all gnus-newsgroup-articles
1055 gnus-newsgroup-downloadable))
1056 (gnus-command-method (gnus-find-method-for-group gnus-newsgroup-name))
1058 (gnus-agent-while-plugged
1060 (error "No articles to download"))
1061 (gnus-agent-with-fetch
1062 (setq gnus-newsgroup-undownloaded
1063 (gnus-sorted-ndifference
1064 gnus-newsgroup-undownloaded
1065 (setq fetched-articles
1066 (gnus-agent-fetch-articles
1067 gnus-newsgroup-name articles)))))
1069 (dolist (article articles)
1070 (let ((was-marked-downloadable
1071 (memq article gnus-newsgroup-downloadable)))
1072 (cond (gnus-agent-mark-unread-after-downloaded
1073 (setq gnus-newsgroup-downloadable
1074 (delq article gnus-newsgroup-downloadable))
1076 ;; The downloadable mark is implemented as a
1077 ;; type of read mark. Therefore, marking the
1078 ;; article as unread is sufficient to clear
1079 ;; its downloadable flag.
1080 (gnus-summary-mark-article article gnus-unread-mark))
1081 (was-marked-downloadable
1082 (gnus-summary-set-agent-mark article t)))
1083 (when (gnus-summary-goto-subject article nil t)
1084 (gnus-summary-update-download-mark article))))))
1087 (defun gnus-agent-fetch-selected-article ()
1088 "Fetch the current article as it is selected.
1089 This can be added to `gnus-select-article-hook' or
1090 `gnus-mark-article-hook'."
1091 (let ((gnus-command-method gnus-current-select-method))
1092 (when (and gnus-plugged (gnus-agent-method-p gnus-command-method))
1093 (when (gnus-agent-fetch-articles
1095 (list gnus-current-article))
1096 (setq gnus-newsgroup-undownloaded
1097 (delq gnus-current-article gnus-newsgroup-undownloaded))
1098 (gnus-summary-update-download-mark gnus-current-article)))))
1101 ;;; Internal functions
1105 ;;; The agent's active range is defined as follows:
1106 ;;; If the agent has no record of the group, use the actual active
1108 ;;; If the agent has a record, set the agent's active range to
1109 ;;; include the max limit of the actual active range.
1110 ;;; When expiring, update the min limit to match the smallest of the
1111 ;;; min article not expired or the min actual active range.
1113 (defun gnus-agent-save-active (method)
1114 (gnus-agent-save-active-1 method 'gnus-active-to-gnus-format))
1116 (defun gnus-agent-save-active-1 (method function)
1117 (when (gnus-agent-method-p method)
1118 (let* ((gnus-command-method method)
1119 (new (gnus-make-hashtable (count-lines (point-min) (point-max))))
1120 (file (gnus-agent-lib-file "active")))
1121 (funcall function nil new)
1122 (gnus-agent-write-active file new)
1124 (nnheader-insert-file-contents file))))
1126 (defun gnus-agent-write-active (file new &optional literal-replacement)
1128 (when (and (not literal-replacement)
1129 (file-exists-p file))
1130 (setq old (gnus-make-hashtable (count-lines (point-min) (point-max))))
1132 (nnheader-insert-file-contents file)
1133 (gnus-active-to-gnus-format nil old))
1134 ;; Iterate over the current active groups, the current active
1135 ;; range may expand, but NOT CONTRACT, the agent's active range.
1138 (let ((new-active (and nsym (boundp nsym) (symbol-value nsym))))
1140 (let* ((osym (intern (symbol-name nsym) old))
1141 (old-active (and (boundp osym) (symbol-value osym))))
1143 (let ((new-min (car new-active))
1144 (old-min (car old-active))
1145 (new-max (cdr new-active))
1146 (old-max (cdr old-active)))
1147 (if (and (integerp new-min)
1148 (< new-min old-min))
1149 (setcar old-active new-min))
1150 (if (and (integerp new-max)
1151 (> new-max old-max))
1152 (setcdr old-active new-max)))
1153 (set osym new-active))))))
1155 (gnus-make-directory (file-name-directory file))
1156 (let ((nnmail-active-file-coding-system gnus-agent-file-coding-system))
1157 ;; The hashtable contains real names of groups. However, do NOT
1158 ;; add the foreign server prefix as gnus-active-to-gnus-format
1159 ;; will add it while reading the file.
1160 (gnus-write-active-file file old nil))))
1162 (defun gnus-agent-save-groups (method)
1163 (gnus-agent-save-active-1 method 'gnus-groups-to-gnus-format))
1165 (defun gnus-agent-save-group-info (method group active)
1166 (when (gnus-agent-method-p method)
1167 (let* ((gnus-command-method method)
1168 (coding-system-for-write nnheader-file-coding-system)
1169 (output-coding-system nnheader-file-coding-system)
1170 (file-name-coding-system nnmail-pathname-coding-system)
1171 (pathname-coding-system nnmail-pathname-coding-system)
1172 (file (gnus-agent-lib-file "active"))
1173 oactive-min oactive-max)
1174 (gnus-make-directory (file-name-directory file))
1175 (with-temp-file file
1176 ;; Emacs got problem to match non-ASCII group in multibyte buffer.
1177 (set-buffer-multibyte nil)
1178 (when (file-exists-p file)
1179 (nnheader-insert-file-contents file)
1181 (goto-char (point-min))
1182 (when (re-search-forward
1183 (concat "^" (regexp-quote group) " ") nil t)
1185 (setq oactive-max (read (current-buffer)) ;; max
1186 oactive-min (read (current-buffer)))) ;; min
1187 (gnus-delete-line)))
1188 (insert (format "%S %d %d y\n" (intern group)
1189 (max (or oactive-max (cdr active)) (cdr active))
1190 (min (or oactive-min (car active)) (car active))))
1191 (goto-char (point-max))
1192 (while (search-backward "\\." nil t)
1193 (delete-char 1))))))
1195 (defun gnus-agent-group-path (group)
1196 "Translate GROUP into a file name."
1198 ;; NOTE: This is what nnmail-group-pathname does as of Apr 2003.
1199 ;; The two methods must be kept synchronized, which is why
1200 ;; gnus-agent-group-pathname was added.
1203 (nnheader-translate-file-chars
1204 (nnheader-replace-duplicate-chars-in-string
1205 (nnheader-replace-chars-in-string
1206 (gnus-group-real-name group)
1209 (if (or nnmail-use-long-file-names
1210 (file-directory-p (expand-file-name group (gnus-agent-directory))))
1212 (mm-encode-coding-string
1213 (nnheader-replace-chars-in-string group ?. ?/)
1214 nnmail-pathname-coding-system)))
1216 (defun gnus-agent-group-pathname (group)
1217 "Translate GROUP into a file name."
1218 ;; nnagent uses nnmail-group-pathname to read articles while
1219 ;; unplugged. The agent must, therefore, use the same directory
1221 (let ((gnus-command-method (or gnus-command-method
1222 (gnus-find-method-for-group group))))
1223 (nnmail-group-pathname (gnus-group-real-name group) (gnus-agent-directory))))
1225 (defun gnus-agent-get-function (method)
1226 (if (gnus-online method)
1231 (defun gnus-agent-covered-methods ()
1232 "Return the subset of methods that are covered by the agent."
1233 (delq nil (mapcar #'gnus-server-to-method gnus-agent-covered-methods)))
1235 ;;; History functions
1237 (defun gnus-agent-history-buffer ()
1238 (cdr (assoc (gnus-agent-method) gnus-agent-history-buffers)))
1240 (defun gnus-agent-open-history ()
1242 (push (cons (gnus-agent-method)
1243 (set-buffer (gnus-get-buffer-create
1244 (format " *Gnus agent %s history*"
1245 (gnus-agent-method)))))
1246 gnus-agent-history-buffers)
1247 (set-buffer-multibyte nil) ;; everything is binary
1250 (let ((file (gnus-agent-lib-file "history")))
1251 (when (file-exists-p file)
1252 (nnheader-insert-file-contents file))
1253 (set (make-local-variable 'gnus-agent-file-name) file))))
1255 (defun gnus-agent-close-history ()
1256 (when (gnus-buffer-live-p gnus-agent-current-history)
1257 (kill-buffer gnus-agent-current-history)
1258 (setq gnus-agent-history-buffers
1259 (delq (assoc (gnus-agent-method) gnus-agent-history-buffers)
1260 gnus-agent-history-buffers))))
1266 (defun gnus-agent-fetch-articles (group articles)
1267 "Fetch ARTICLES from GROUP and put them into the Agent."
1269 (gnus-agent-load-alist group)
1270 (let* ((alist gnus-agent-article-alist)
1271 (headers (if (< (length articles) 2) nil gnus-newsgroup-headers))
1272 (selected-sets (list nil))
1273 (current-set-size 0)
1276 ;; Check each article
1277 (while (setq article (pop articles))
1278 ;; Skip alist entries preceeding this article
1279 (while (> article (or (caar alist) (1+ article)))
1280 (setq alist (cdr alist)))
1282 ;; Prune off articles that we have already fetched.
1283 (unless (and (eq article (caar alist))
1285 ;; Skip headers preceeding this article
1288 (let* ((header (car headers)))
1290 (mail-header-number header)
1292 (setq headers (cdr headers)))
1294 ;; Add this article to the current set
1295 (setcar selected-sets (cons article (car selected-sets)))
1297 ;; Update the set size, when the set is too large start a
1298 ;; new one. I do this after adding the article as I want at
1299 ;; least one article in each set.
1300 (when (< gnus-agent-max-fetch-size
1301 (setq current-set-size
1303 (if (= header-number article)
1304 (let ((char-size (mail-header-chars
1306 (if (<= char-size 0)
1307 ;; The char size was missing/invalid,
1308 ;; assume a worst-case situation of
1309 ;; 65 char/line. If the line count
1310 ;; is missing, arbitrarily assume a
1311 ;; size of 1000 characters.
1312 (max (* 65 (mail-header-lines
1317 (setcar selected-sets (nreverse (car selected-sets)))
1318 (setq selected-sets (cons nil selected-sets)
1319 current-set-size 0))))
1321 (when (or (cdr selected-sets) (car selected-sets))
1322 (let* ((fetched-articles (list nil))
1323 (tail-fetched-articles fetched-articles)
1324 (dir (gnus-agent-group-pathname group))
1325 (date (time-to-days (current-time)))
1326 (case-fold-search t)
1329 (setcar selected-sets (nreverse (car selected-sets)))
1330 (setq selected-sets (nreverse selected-sets))
1332 (gnus-make-directory dir)
1333 (gnus-message 7 "Fetching articles for %s..." group)
1336 (while (setq articles (pop selected-sets))
1337 ;; Fetch the articles from the backend.
1338 (if (gnus-check-backend-function 'retrieve-articles group)
1339 (setq pos (gnus-retrieve-articles articles group))
1342 (while (setq article (pop articles))
1343 (gnus-message 10 "Fetching article %s for %s..."
1346 (gnus-backlog-request-article group article
1348 (gnus-request-article article group))
1349 (goto-char (point-max))
1350 (push (cons article (point)) pos)
1351 (insert-buffer-substring nntp-server-buffer)))
1353 nntp-server-buffer (point-min) (point-max))
1354 (setq pos (nreverse pos)))))
1355 ;; Then save these articles into the Agent.
1357 (set-buffer nntp-server-buffer)
1359 (narrow-to-region (cdar pos) (or (cdadr pos) (point-max)))
1360 (goto-char (point-min))
1361 (unless (eobp) ;; Don't save empty articles.
1362 (when (search-forward "\n\n" nil t)
1363 (when (search-backward "\nXrefs: " nil t)
1364 ;; Handle cross posting.
1365 (goto-char (match-end 0)) ; move to end of header name
1366 (skip-chars-forward "^ ") ; skip server name
1367 (skip-chars-forward " ")
1369 (while (looking-at "\\([^: \n]+\\):\\([0-9]+\\) *")
1370 (push (cons (buffer-substring (match-beginning 1)
1373 (buffer-substring (match-beginning 2)
1376 (goto-char (match-end 0)))
1377 (gnus-agent-crosspost crosses (caar pos) date)))
1378 (goto-char (point-min))
1379 (if (not (re-search-forward
1380 "^Message-ID: *<\\([^>\n]+\\)>" nil t))
1381 (setq id "No-Message-ID-in-article")
1382 (setq id (buffer-substring
1383 (match-beginning 1) (match-end 1))))
1384 (write-region-as-coding-system
1385 gnus-agent-file-coding-system (point-min) (point-max)
1386 (concat dir (number-to-string (caar pos))) nil 'silent)
1388 (gnus-agent-append-to-list
1389 tail-fetched-articles (caar pos)))
1391 (setq pos (cdr pos)))))
1393 (gnus-agent-save-alist group (cdr fetched-articles) date)
1394 (gnus-message 7 ""))
1395 (cdr fetched-articles))))))
1397 (defun gnus-agent-crosspost (crosses article &optional date)
1398 (setq date (or date t))
1400 (let (gnus-agent-article-alist group alist beg end)
1402 (set-buffer gnus-agent-overview-buffer)
1403 (when (nnheader-find-nov-line article)
1406 (setq end (progn (forward-line 1) (point)))))
1408 (setq group (caar crosses))
1409 (unless (setq alist (assoc group gnus-agent-group-alist))
1410 (push (setq alist (list group (gnus-agent-load-alist (caar crosses))))
1411 gnus-agent-group-alist))
1412 (setcdr alist (cons (cons (cdar crosses) date) (cdr alist)))
1414 (set-buffer (gnus-get-buffer-create (format " *Gnus agent overview %s*"
1416 (when (= (point-max) (point-min))
1417 (push (cons group (current-buffer)) gnus-agent-buffer-alist)
1419 (nnheader-insert-file-contents
1420 (gnus-agent-article-name ".overview" group))))
1421 (nnheader-find-nov-line (string-to-number (cdar crosses)))
1422 (insert (string-to-number (cdar crosses)))
1423 (insert-buffer-substring gnus-agent-overview-buffer beg end)
1424 (gnus-agent-check-overview-buffer))
1425 (setq crosses (cdr crosses)))))
1427 (defun gnus-agent-backup-overview-buffer ()
1428 (when gnus-newsgroup-name
1429 (let ((root (gnus-agent-article-name ".overview" gnus-newsgroup-name))
1432 (while (file-exists-p
1433 (setq name (concat root "~"
1434 (int-to-string (setq cnt (1+ cnt))) "~"))))
1435 (write-region (point-min) (point-max) name nil 'no-msg)
1436 (gnus-message 1 "Created backup copy of overview in %s." name)))
1439 (defun gnus-agent-check-overview-buffer (&optional buffer)
1440 "Check the overview file given for sanity.
1441 In particular, checks that the file is sorted by article number
1442 and that there are no duplicates."
1447 (set-buffer buffer))
1450 (goto-char (point-min))
1452 (while (< (point) (point-max))
1454 (cur (condition-case nil
1455 (read (current-buffer))
1458 ((or (not (integerp cur))
1459 (not (eq (char-after) ?\t)))
1461 (setq backed-up (gnus-agent-backup-overview-buffer)))
1463 "Overview buffer contains garbage '%s'."
1465 p (gnus-point-at-eol))))
1468 (setq backed-up (gnus-agent-backup-overview-buffer)))
1470 "Duplicate overview line for %d" cur)
1471 (delete-region (point) (progn (forward-line 1) (point))))
1474 (setq backed-up (gnus-agent-backup-overview-buffer)))
1475 (gnus-message 1 "Overview buffer not sorted!")
1476 (sort-numeric-fields 1 (point-min) (point-max))
1477 (goto-char (point-min))
1480 (setq prev-num cur)))
1481 (forward-line 1)))))))
1483 (defun gnus-agent-flush-cache ()
1485 (while gnus-agent-buffer-alist
1486 (set-buffer (cdar gnus-agent-buffer-alist))
1487 (write-region-as-coding-system
1488 gnus-agent-file-coding-system
1489 (point-min) (point-max)
1490 (gnus-agent-article-name ".overview"
1491 (caar gnus-agent-buffer-alist))
1493 (setq gnus-agent-buffer-alist (cdr gnus-agent-buffer-alist)))
1494 (while gnus-agent-group-alist
1495 (with-temp-file (gnus-agent-article-name
1496 ".agentview" (caar gnus-agent-group-alist))
1497 (princ (cdar gnus-agent-group-alist))
1499 (princ 1 (current-buffer))
1501 (setq gnus-agent-group-alist (cdr gnus-agent-group-alist)))))
1503 (defun gnus-agent-find-parameter (group symbol)
1504 "Search for GROUPs SYMBOL in the group's parameters, the group's
1505 topic parameters, the group's category, or the customizable
1506 variables. Returns the first non-nil value found."
1507 (or (gnus-group-find-parameter group symbol t)
1508 (gnus-group-parameter-value (cdr (gnus-group-category group)) symbol t)
1512 '((agent-short-article . gnus-agent-short-article)
1513 (agent-long-article . gnus-agent-long-article)
1514 (agent-low-score . gnus-agent-low-score)
1515 (agent-high-score . gnus-agent-high-score)
1516 (agent-days-until-old . gnus-agent-expire-days)
1517 (agent-enable-expiration
1518 . gnus-agent-enable-expiration)
1519 (agent-predicate . gnus-agent-predicate)))))))
1521 (defun gnus-agent-fetch-headers (group &optional force)
1522 "Fetch interesting headers into the agent. The group's overview
1523 file will be updated to include the headers while a list of available
1524 article numbers will be returned."
1525 (let* ((fetch-all (and gnus-agent-consider-all-articles
1526 ;; Do not fetch all headers if the predicate
1527 ;; implies that we only consider unread articles.
1528 (not (gnus-predicate-implies-unread
1529 (gnus-agent-find-parameter group
1530 'agent-predicate)))))
1531 (articles (if fetch-all
1532 (gnus-uncompress-range (gnus-active group))
1533 (gnus-list-of-unread-articles group)))
1534 (gnus-decode-encoded-word-function 'identity)
1535 (file (gnus-agent-article-name ".overview" group)))
1536 ;; Check whether the number of articles is not too large.
1537 (when (and (integerp gnus-agent-large-newsgroup)
1538 (> gnus-agent-large-newsgroup 0))
1539 (setq articles (nthcdr (max (- (length articles)
1540 gnus-agent-large-newsgroup)
1544 ;; Add articles with marks to the list of article headers we want to
1545 ;; fetch. Don't fetch articles solely on the basis of a recent or seen
1546 ;; mark, but do fetch recent or seen articles if they have other, more
1547 ;; interesting marks. (We have to fetch articles with boring marks
1548 ;; because otherwise the agent will remove their marks.)
1549 (dolist (arts (gnus-info-marks (gnus-get-info group)))
1550 (unless (memq (car arts) '(seen recent killed cache))
1551 (setq articles (gnus-range-add articles (cdr arts)))))
1552 (setq articles (sort (gnus-uncompress-sequence articles) '<)))
1554 ;; At this point, I have the list of articles to consider for
1555 ;; fetching. This is the list that I'll return to my caller. Some
1556 ;; of these articles may have already been fetched. That's OK as
1557 ;; the fetch article code will filter those out. Internally, I'll
1558 ;; filter this list to just those articles whose headers need to
1560 (let ((articles articles))
1561 ;; Remove known articles.
1562 (when (and (or gnus-agent-cache
1564 (gnus-agent-load-alist group))
1565 ;; Remove articles marked as downloaded.
1567 ;; I want to fetch all headers in the active range.
1568 ;; Therefore, exclude only those headers that are in the
1570 ;; NOTE: This is probably NOT what I want to do after
1571 ;; agent expiration in this group.
1572 (setq articles (gnus-agent-uncached-articles articles group))
1574 ;; I want to only fetch those headers that have never been
1575 ;; fetched. Therefore, exclude all headers that are, or
1576 ;; WERE, in the article alist.
1577 (let ((low (1+ (caar (last gnus-agent-article-alist))))
1578 (high (cdr (gnus-active group))))
1579 ;; Low can be greater than High when the same group is
1580 ;; fetched twice in the same session {The first fetch will
1581 ;; fill the article alist such that (last
1582 ;; gnus-agent-article-alist) equals (cdr (gnus-active
1583 ;; group))}. The addition of one(the 1+ above) then
1584 ;; forces Low to be greater than High. When this happens,
1585 ;; gnus-list-range-intersection returns nil which
1586 ;; indicates that no headers need to be fetched. -- Kevin
1587 (setq articles (gnus-list-range-intersection
1588 articles (list (cons low high)))))))
1591 10 "gnus-agent-fetch-headers: undownloaded articles are '%s'"
1592 (gnus-compress-sequence articles t))
1595 (set-buffer nntp-server-buffer)
1599 (gnus-message 7 "Fetching headers for %s..." group)
1602 (gnus-make-directory (nnheader-translate-file-chars
1603 (file-name-directory file) t))
1605 (unless (eq 'nov (gnus-retrieve-headers articles group))
1606 (nnvirtual-convert-headers))
1607 (gnus-agent-check-overview-buffer)
1608 ;; Move these headers to the overview buffer so that
1609 ;; gnus-agent-braid-nov can merge them with the contents
1612 gnus-agent-overview-buffer (point-min) (point-max))
1613 (when (file-exists-p file)
1614 (gnus-agent-braid-nov group articles file))
1615 (gnus-agent-check-overview-buffer)
1616 (write-region-as-coding-system
1617 gnus-agent-file-coding-system
1618 (point-min) (point-max) file nil 'silent)
1619 (gnus-agent-save-alist group articles nil)
1623 (nnheader-insert-file-contents file)))))
1626 (defsubst gnus-agent-copy-nov-line (article)
1628 (set-buffer gnus-agent-overview-buffer)
1629 (while (and (not (eobp))
1630 (< (setq art (read (current-buffer))) article))
1634 (not (eq article art)))
1635 (set-buffer nntp-server-buffer)
1637 (setq e (progn (forward-line 1) (point)))
1638 (set-buffer nntp-server-buffer)
1639 (insert-buffer-substring gnus-agent-overview-buffer b e))))
1641 (defun gnus-agent-braid-nov (group articles file)
1642 "Merge agent overview data with given file.
1643 Takes headers for ARTICLES from `gnus-agent-overview-buffer' and the given
1644 FILE and places the combined headers into `nntp-server-buffer'."
1646 (set-buffer gnus-agent-overview-buffer)
1647 (goto-char (point-min))
1648 (set-buffer nntp-server-buffer)
1650 (nnheader-insert-file-contents file)
1651 (goto-char (point-max))
1653 (unless (looking-at "[0-9]+\t")
1654 ;; Remove corrupted lines
1656 1 "Overview %s is corrupted. Removing corrupted lines..." file)
1657 (goto-char (point-min))
1659 (if (looking-at "[0-9]+\t")
1661 (delete-region (point) (progn (forward-line 1) (point)))))
1663 (unless (or (= (point-min) (point-max))
1664 (< (setq last (read (current-buffer))) (car articles)))
1665 ;; We do it the hard way.
1666 (when (nnheader-find-nov-line (car articles))
1667 ;; Replacing existing NOV entry
1668 (delete-region (point) (progn (forward-line 1) (point))))
1669 (gnus-agent-copy-nov-line (pop articles))
1673 (while (let ((art (read (current-buffer))))
1674 (cond ((< art (car articles))
1677 ((= art (car articles))
1680 (point) (progn (forward-line 1) (point)))
1686 (gnus-agent-copy-nov-line (pop articles)))))
1688 ;; Copy the rest lines
1689 (set-buffer nntp-server-buffer)
1690 (goto-char (point-max))
1693 (set-buffer gnus-agent-overview-buffer)
1695 (while (<= (read (current-buffer)) last)
1698 (setq start (point))
1699 (set-buffer nntp-server-buffer))
1700 (insert-buffer-substring gnus-agent-overview-buffer start))))
1702 ;; Keeps the compiler from warning about the free variable in
1703 ;; gnus-agent-read-agentview.
1705 (defvar gnus-agent-read-agentview))
1707 (defun gnus-agent-load-alist (group)
1708 "Load the article-state alist for GROUP."
1709 ;; Bind free variable that's used in `gnus-agent-read-agentview'.
1710 (let ((gnus-agent-read-agentview group))
1711 (setq gnus-agent-article-alist
1712 (gnus-cache-file-contents
1713 (gnus-agent-article-name ".agentview" group)
1714 'gnus-agent-file-loading-cache
1715 'gnus-agent-read-agentview))))
1717 ;; Save format may be either 1 or 2. Two is the new, compressed
1718 ;; format that is still being tested. Format 1 is uncompressed but
1719 ;; known to be reliable.
1720 (defconst gnus-agent-article-alist-save-format 2)
1722 (defun gnus-agent-read-agentview (file)
1723 "Load FILE and do a `read' there."
1726 (nnheader-insert-file-contents file)
1727 (goto-char (point-min))
1728 (let ((alist (read (current-buffer)))
1729 (version (condition-case nil (read (current-buffer))
1735 (let ((inhibit-quit t)
1737 (gnus-agent-open-history)
1738 (set-buffer (gnus-agent-history-buffer))
1739 (goto-char (point-min))
1741 (if (and (looking-at
1742 "[^\t\n]+\t\\([0-9]+\\)\t\\([^ \n]+\\) \\([0-9]+\\)")
1743 (string= (match-string 2)
1744 gnus-agent-read-agentview)
1745 (setq entry (assoc (string-to-number (match-string 3)) alist)))
1746 (setcdr entry (string-to-number (match-string 1))))
1748 (gnus-agent-close-history)
1749 (setq changed-version t)))
1751 (setq changed-version (not (= 1 gnus-agent-article-alist-save-format))))
1756 (let ((state (car comp-list))
1757 (sequence (gnus-uncompress-sequence
1759 (mapcar (lambda (article-id)
1760 (setq uncomp (cons (cons article-id state) uncomp)))
1763 (setq alist (sort uncomp
1764 (lambda (first second)
1765 (< (car first) (car second))))))))
1766 (when changed-version
1767 (let ((gnus-agent-article-alist alist))
1768 (gnus-agent-save-alist gnus-agent-read-agentview)))
1771 (defun gnus-agent-save-alist (group &optional articles state dir)
1772 "Save the article-state alist for GROUP."
1773 (let* ((file-name-coding-system nnmail-pathname-coding-system)
1774 (pathname-coding-system nnmail-pathname-coding-system)
1775 (prev (cons nil gnus-agent-article-alist))
1777 print-level print-length item article)
1778 (while (setq article (pop articles))
1779 (while (and (cdr prev)
1780 (< (caadr prev) article))
1781 (setq prev (cdr prev)))
1784 (setcdr prev (list (cons article state))))
1785 ((> (caadr prev) article)
1786 (setcdr prev (cons (cons article state) (cdr prev))))
1787 ((= (caadr prev) article)
1788 (setcdr (cadr prev) state)))
1789 (setq prev (cdr prev)))
1790 (setq gnus-agent-article-alist (cdr all))
1792 (gnus-make-directory dir)
1793 (gnus-make-directory (gnus-agent-article-name "" group)))
1794 (with-temp-file (if dir
1795 (expand-file-name ".agentview" dir)
1796 (gnus-agent-article-name ".agentview" group))
1797 (cond ((eq gnus-agent-article-alist-save-format 1)
1798 (princ gnus-agent-article-alist (current-buffer)))
1799 ((eq gnus-agent-article-alist-save-format 2)
1800 (let ((compressed nil))
1801 (mapcar (lambda (pair)
1802 (let* ((article-id (car pair))
1803 (day-of-download (cdr pair))
1804 (comp-list (assq day-of-download compressed)))
1807 (cons article-id (cdr comp-list)))
1809 (cons (list day-of-download article-id)
1811 nil)) gnus-agent-article-alist)
1812 (mapcar (lambda (comp-list)
1814 (gnus-compress-sequence
1815 (nreverse (cdr comp-list)))))
1817 (princ compressed (current-buffer)))))
1819 (princ gnus-agent-article-alist-save-format (current-buffer))
1822 (defun gnus-agent-article-name (article group)
1823 (expand-file-name article
1824 (file-name-as-directory
1825 (gnus-agent-group-pathname group))))
1827 (defun gnus-agent-batch-confirmation (msg)
1828 "Show error message and return t."
1829 (gnus-message 1 msg)
1833 (defun gnus-agent-batch-fetch ()
1834 "Start Gnus and fetch session."
1837 (let ((gnus-agent-confirmation-function 'gnus-agent-batch-confirmation))
1838 (gnus-agent-fetch-session))
1841 (defun gnus-agent-fetch-session ()
1842 "Fetch all articles and headers that are eligible for fetching."
1844 (unless gnus-agent-covered-methods
1845 (error "No servers are covered by the Gnus agent"))
1846 (unless gnus-plugged
1847 (error "Can't fetch articles while Gnus is unplugged"))
1848 (let ((methods (gnus-agent-covered-methods))
1849 groups group gnus-command-method)
1852 (setq gnus-command-method (car methods))
1853 (when (and (or (gnus-server-opened gnus-command-method)
1854 (gnus-open-server gnus-command-method))
1855 (gnus-online gnus-command-method))
1856 (setq groups (gnus-groups-from-server (car methods)))
1857 (gnus-agent-with-fetch
1858 (while (setq group (pop groups))
1859 (when (<= (gnus-group-level group)
1860 gnus-agent-handle-level)
1861 (if (or debug-on-error debug-on-quit)
1862 (gnus-agent-fetch-group-1
1863 group gnus-command-method)
1865 (gnus-agent-fetch-group-1
1866 group gnus-command-method)
1868 (unless (funcall gnus-agent-confirmation-function
1869 (format "Error %s. Continue? "
1870 (error-message-string err)))
1871 (error "Cannot fetch articles into the Gnus agent")))
1873 (unless (funcall gnus-agent-confirmation-function
1875 "Quit fetching session %s. Continue? "
1876 (error-message-string err)))
1878 "Cannot fetch articles into the Gnus agent")))))))))
1879 (setq methods (cdr methods)))
1880 (gnus-run-hooks 'gnus-agent-fetched-hook)
1881 (gnus-message 6 "Finished fetching articles into the Gnus agent"))))
1883 (defun gnus-agent-fetch-group-1 (group method)
1885 (let ((gnus-command-method method)
1886 (gnus-newsgroup-name group)
1887 (gnus-newsgroup-dependencies gnus-newsgroup-dependencies)
1888 (gnus-newsgroup-headers gnus-newsgroup-headers)
1889 (gnus-newsgroup-scored gnus-newsgroup-scored)
1890 (gnus-use-cache gnus-use-cache)
1891 (gnus-summary-expunge-below gnus-summary-expunge-below)
1892 (gnus-summary-mark-below gnus-summary-mark-below)
1893 (gnus-orphan-score gnus-orphan-score)
1894 ;; Maybe some other gnus-summary local variables should also
1900 category predicate info marks score-param
1902 (unless (gnus-check-group group)
1903 (error "Can't open server for %s" group))
1906 (when (or gnus-newsgroup-active
1908 (gnus-activate-group group))
1909 (let ((marked-articles gnus-newsgroup-downloadable))
1910 ;; Identify the articles marked for download
1911 (unless gnus-newsgroup-active
1912 ;; The variable gnus-newsgroup-active was selected as I need
1913 ;; a gnus-summary local variable that is NOT bound to any
1914 ;; value (its global value should default to nil).
1915 (dolist (mark gnus-agent-download-marks)
1916 (let ((arts (cdr (assq mark (gnus-info-marks
1917 (setq info (gnus-get-info group)))))))
1919 (setq marked-articles (nconc (gnus-uncompress-range arts)
1922 (setq marked-articles (sort marked-articles '<))
1924 ;; Fetch any new articles from the server
1925 (setq articles (gnus-agent-fetch-headers group))
1927 ;; Merge new articles with marked
1928 (setq articles (sort (append marked-articles articles) '<))
1931 ;; Parse them and see which articles we want to fetch.
1932 (setq gnus-newsgroup-dependencies
1933 (or gnus-newsgroup-dependencies
1934 (make-vector (length articles) 0)))
1935 (setq gnus-newsgroup-headers
1936 (or gnus-newsgroup-headers
1937 (gnus-get-newsgroup-headers-xover articles nil nil
1939 ;; `gnus-agent-overview-buffer' may be killed for
1940 ;; timeout reason. If so, recreate it.
1941 (gnus-agent-create-buffer)
1943 ;; Figure out how to select articles in this group
1944 (setq category (gnus-group-category group))
1948 (gnus-agent-find-parameter group 'agent-predicate)))
1950 ;; If the selection predicate requires scoring, score each header
1951 (unless (memq predicate '(gnus-agent-true gnus-agent-false))
1953 (gnus-agent-find-parameter group 'agent-score-file)))
1954 ;; Translate score-param into real one
1957 ((eq score-param 'file)
1958 (setq score-param (gnus-all-score-files group)))
1959 ((stringp (car score-param)))
1961 (setq score-param (list (list score-param)))))
1963 (gnus-score-headers score-param))))
1965 (unless (and (eq predicate 'gnus-agent-false)
1966 (not marked-articles))
1967 (let ((arts (list nil)))
1968 (let ((arts-tail arts)
1969 (alist (gnus-agent-load-alist group))
1970 (marked-articles marked-articles)
1971 (gnus-newsgroup-headers gnus-newsgroup-headers))
1972 (while (setq gnus-headers (pop gnus-newsgroup-headers))
1973 (let ((num (mail-header-number gnus-headers)))
1974 ;; Determine if this article is already in the cache
1976 (> num (caar alist)))
1977 (setq alist (cdr alist)))
1979 (unless (and (eq num (caar alist))
1982 ;; Determine if this article was marked for download.
1983 (while (and marked-articles
1984 (> num (car marked-articles)))
1985 (setq marked-articles
1986 (cdr marked-articles)))
1988 ;; When this article is marked, or selected by the
1989 ;; predicate, add it to the download list
1990 (when (or (eq num (car marked-articles))
1993 (assq num gnus-newsgroup-scored))
1994 gnus-summary-default-score))
1995 (gnus-agent-long-article
1996 (gnus-agent-find-parameter
1997 group 'agent-long-article))
1998 (gnus-agent-short-article
1999 (gnus-agent-find-parameter
2000 group 'agent-short-article))
2001 (gnus-agent-low-score
2002 (gnus-agent-find-parameter
2003 group 'agent-low-score))
2004 (gnus-agent-high-score
2005 (gnus-agent-find-parameter
2006 group 'agent-high-score))
2007 (gnus-agent-expire-days
2008 (gnus-agent-find-parameter
2009 group 'agent-days-until-old)))
2010 (funcall predicate)))
2011 (gnus-agent-append-to-list arts-tail num))))))
2013 (let (fetched-articles)
2014 ;; Fetch all selected articles
2015 (setq gnus-newsgroup-undownloaded
2016 (gnus-sorted-ndifference
2017 gnus-newsgroup-undownloaded
2018 (setq fetched-articles
2020 (gnus-agent-fetch-articles group (cdr arts))
2023 (let ((unfetched-articles
2024 (gnus-sorted-ndifference (cdr arts) fetched-articles)))
2025 (if gnus-newsgroup-active
2026 ;; Update the summary buffer
2028 (dolist (article marked-articles)
2029 (gnus-summary-set-agent-mark article t))
2030 (dolist (article fetched-articles)
2031 (if gnus-agent-mark-unread-after-downloaded
2032 (gnus-summary-mark-article
2033 article gnus-unread-mark))
2034 (when (gnus-summary-goto-subject article nil t)
2035 (gnus-summary-update-download-mark article)))
2036 (dolist (article unfetched-articles)
2037 (gnus-summary-mark-article
2038 article gnus-canceled-mark)))
2040 ;; Update the group buffer.
2042 ;; When some, or all, of the marked articles came
2043 ;; from the download mark. Remove that mark. I
2044 ;; didn't do this earlier as I only want to remove
2045 ;; the marks after the fetch is completed.
2047 (dolist (mark gnus-agent-download-marks)
2048 (when (eq mark 'download)
2050 (assq mark (gnus-info-marks
2051 (setq info (gnus-get-info group))))))
2052 (when (cdr marked-arts)
2054 (delq marked-arts (gnus-info-marks info)))
2055 (gnus-info-set-marks info marks)))))
2056 (let ((read (gnus-info-read
2057 (or info (setq info (gnus-get-info group))))))
2059 info (gnus-add-to-range read unfetched-articles)))
2061 (gnus-group-update-group group t)
2065 (concat "(gnus-group-set-info '"
2066 (gnus-prin1-to-string info)
2070 ;;; Agent Category Mode
2073 (defvar gnus-category-mode-hook nil
2074 "Hook run in `gnus-category-mode' buffers.")
2076 (defvar gnus-category-line-format " %(%20c%): %g\n"
2077 "Format of category lines.
2079 Valid specifiers include:
2080 %c Topic name (string)
2081 %g The number of groups in the topic (integer)
2083 General format specifiers can also be used. See Info node
2084 `(gnus)Formatting Variables'.")
2086 (defvar gnus-category-mode-line-format "Gnus: %%b"
2087 "The format specification for the category mode line.")
2089 (defvar gnus-agent-predicate 'false
2090 "The selection predicate used when no other source is available.")
2092 (defvar gnus-agent-short-article 100
2093 "Articles that have fewer lines than this are short.")
2095 (defvar gnus-agent-long-article 200
2096 "Articles that have more lines than this are long.")
2098 (defvar gnus-agent-low-score 0
2099 "Articles that have a score lower than this have a low score.")
2101 (defvar gnus-agent-high-score 0
2102 "Articles that have a score higher than this have a high score.")
2105 ;;; Internal variables.
2107 (defvar gnus-category-buffer "*Agent Category*")
2109 (defvar gnus-category-line-format-alist
2110 `((?c gnus-tmp-name ?s)
2111 (?g gnus-tmp-groups ?d)))
2113 (defvar gnus-category-mode-line-format-alist
2114 `((?u user-defined ?s)))
2116 (defvar gnus-category-line-format-spec nil)
2117 (defvar gnus-category-mode-line-format-spec nil)
2119 (defvar gnus-category-mode-map nil)
2120 (put 'gnus-category-mode 'mode-class 'special)
2122 (unless gnus-category-mode-map
2123 (setq gnus-category-mode-map (make-sparse-keymap))
2124 (suppress-keymap gnus-category-mode-map)
2126 (gnus-define-keys gnus-category-mode-map
2127 "q" gnus-category-exit
2128 "k" gnus-category-kill
2129 "c" gnus-category-copy
2130 "a" gnus-category-add
2131 "e" gnus-agent-customize-category
2132 "p" gnus-category-edit-predicate
2133 "g" gnus-category-edit-groups
2134 "s" gnus-category-edit-score
2135 "l" gnus-category-list
2137 "\C-c\C-i" gnus-info-find-node
2138 "\C-c\C-b" gnus-bug))
2140 (defvar gnus-category-menu-hook nil
2141 "*Hook run after the creation of the menu.")
2143 (defun gnus-category-make-menu-bar ()
2144 (gnus-turn-off-edit-menu 'category)
2145 (unless (boundp 'gnus-category-menu)
2147 gnus-category-menu gnus-category-mode-map ""
2149 ["Add" gnus-category-add t]
2150 ["Kill" gnus-category-kill t]
2151 ["Copy" gnus-category-copy t]
2152 ["Edit category" gnus-agent-customize-category t]
2153 ["Edit predicate" gnus-category-edit-predicate t]
2154 ["Edit score" gnus-category-edit-score t]
2155 ["Edit groups" gnus-category-edit-groups t]
2156 ["Exit" gnus-category-exit t]))
2158 (gnus-run-hooks 'gnus-category-menu-hook)))
2160 (defun gnus-category-mode ()
2161 "Major mode for listing and editing agent categories.
2163 All normal editing commands are switched off.
2164 \\<gnus-category-mode-map>
2165 For more in-depth information on this mode, read the manual
2166 \(`\\[gnus-info-find-node]').
2168 The following commands are available:
2170 \\{gnus-category-mode-map}"
2172 (when (gnus-visual-p 'category-menu 'menu)
2173 (gnus-category-make-menu-bar))
2174 (kill-all-local-variables)
2175 (gnus-simplify-mode-line)
2176 (setq major-mode 'gnus-category-mode)
2177 (setq mode-name "Category")
2178 (gnus-set-default-directory)
2179 (setq mode-line-process nil)
2180 (use-local-map gnus-category-mode-map)
2181 (buffer-disable-undo)
2182 (setq truncate-lines t)
2183 (setq buffer-read-only t)
2184 (gnus-run-hooks 'gnus-category-mode-hook))
2186 (defalias 'gnus-category-position-point 'gnus-goto-colon)
2188 (defun gnus-category-insert-line (category)
2189 (let* ((gnus-tmp-name (format "%s" (car category)))
2190 (gnus-tmp-groups (length (gnus-agent-cat-groups category))))
2192 (gnus-add-text-properties
2196 (eval gnus-category-line-format-spec))
2197 (list 'gnus-category gnus-tmp-name))))
2199 (defun gnus-enter-category-buffer ()
2200 "Go to the Category buffer."
2202 (gnus-category-setup-buffer)
2203 (gnus-configure-windows 'category)
2204 (gnus-category-prepare))
2206 (defun gnus-category-setup-buffer ()
2207 (unless (get-buffer gnus-category-buffer)
2209 (set-buffer (gnus-get-buffer-create gnus-category-buffer))
2210 (gnus-category-mode))))
2212 (defun gnus-category-prepare ()
2213 (gnus-set-format 'category-mode)
2214 (gnus-set-format 'category t)
2215 (let ((alist gnus-category-alist)
2216 (buffer-read-only nil))
2219 (gnus-category-insert-line (pop alist)))
2220 (goto-char (point-min))
2221 (gnus-category-position-point)))
2223 (defun gnus-category-name ()
2224 (or (intern (get-text-property (gnus-point-at-bol) 'gnus-category))
2225 (error "No category on the current line")))
2227 (defun gnus-category-read ()
2228 "Read the category alist."
2229 (setq gnus-category-alist
2233 (nnheader-insert-file-contents (nnheader-concat gnus-agent-directory "lib/categories"))
2234 (goto-char (point-min))
2235 ;; This code isn't temp, it will be needed so long as
2236 ;; anyone may be migrating from an older version.
2238 ;; Once we're certain that people will not revert to an
2239 ;; earlier version, we can take out the old-list code in
2240 ;; gnus-category-write.
2241 (let* ((old-list (read (current-buffer)))
2242 (new-list (ignore-errors (read (current-buffer)))))
2245 ;; Convert from a positional list to an alist.
2255 '(agent-predicate agent-score-file agent-groups))))
2258 (list (gnus-agent-cat-make 'default 'short)))))
2260 (defun gnus-category-write ()
2261 "Write the category alist."
2262 (setq gnus-category-predicate-cache nil
2263 gnus-category-group-cache nil)
2264 (gnus-make-directory (nnheader-concat gnus-agent-directory "lib"))
2265 (with-temp-file (nnheader-concat gnus-agent-directory "lib/categories")
2266 ;; This prin1 is temporary. It exists so that people can revert
2267 ;; to an earlier version of gnus-agent.
2268 (prin1 (mapcar (lambda (c)
2270 (cdr (assoc 'agent-predicate c))
2271 (cdr (assoc 'agent-score-file c))
2272 (cdr (assoc 'agent-groups c))))
2273 gnus-category-alist)
2276 (prin1 gnus-category-alist (current-buffer))))
2278 (defun gnus-category-edit-predicate (category)
2279 "Edit the predicate for CATEGORY."
2280 (interactive (list (gnus-category-name)))
2281 (let ((info (assq category gnus-category-alist)))
2283 (gnus-agent-cat-predicate info)
2284 (format "Editing the select predicate for category %s" category)
2285 `(lambda (predicate)
2286 ;; Avoid run-time execution of setf form
2287 ;; (setf (gnus-agent-cat-predicate (assq ',category gnus-category-alist))
2289 ;; use its expansion instead:
2290 (gnus-agent-cat-set-property (assq ',category gnus-category-alist)
2291 'agent-predicate predicate)
2293 (gnus-category-write)
2294 (gnus-category-list)))))
2296 (defun gnus-category-edit-score (category)
2297 "Edit the score expression for CATEGORY."
2298 (interactive (list (gnus-category-name)))
2299 (let ((info (assq category gnus-category-alist)))
2301 (gnus-agent-cat-score-file info)
2302 (format "Editing the score expression for category %s" category)
2303 `(lambda (score-file)
2304 ;; Avoid run-time execution of setf form
2305 ;; (setf (gnus-agent-cat-score-file (assq ',category gnus-category-alist))
2307 ;; use its expansion instead:
2308 (gnus-agent-cat-set-property (assq ',category gnus-category-alist)
2309 'agent-score-file score-file)
2311 (gnus-category-write)
2312 (gnus-category-list)))))
2314 (defun gnus-category-edit-groups (category)
2315 "Edit the group list for CATEGORY."
2316 (interactive (list (gnus-category-name)))
2317 (let ((info (assq category gnus-category-alist)))
2319 (gnus-agent-cat-groups info)
2320 (format "Editing the group list for category %s" category)
2322 ;; Avoid run-time execution of setf form
2323 ;; (setf (gnus-agent-cat-groups (assq ',category gnus-category-alist))
2325 ;; use its expansion instead:
2326 (gnus-agent-set-cat-groups (assq ',category gnus-category-alist)
2329 (gnus-category-write)
2330 (gnus-category-list)))))
2332 (defun gnus-category-kill (category)
2333 "Kill the current category."
2334 (interactive (list (gnus-category-name)))
2335 (let ((info (assq category gnus-category-alist))
2336 (buffer-read-only nil))
2338 (setq gnus-category-alist (delq info gnus-category-alist))
2339 (gnus-category-write)))
2341 (defun gnus-category-copy (category to)
2342 "Copy the current category."
2343 (interactive (list (gnus-category-name) (intern (read-string "New name: "))))
2344 (let ((info (assq category gnus-category-alist)))
2345 (push (let ((newcat (gnus-copy-sequence info)))
2346 (setf (gnus-agent-cat-name newcat) to)
2347 (setf (gnus-agent-cat-groups newcat) nil)
2349 gnus-category-alist)
2350 (gnus-category-write)
2351 (gnus-category-list)))
2353 (defun gnus-category-add (category)
2354 "Create a new category."
2355 (interactive "SCategory name: ")
2356 (when (assq category gnus-category-alist)
2357 (error "Category %s already exists" category))
2358 (push (gnus-agent-cat-make category)
2359 gnus-category-alist)
2360 (gnus-category-write)
2361 (gnus-category-list))
2363 (defun gnus-category-list ()
2364 "List all categories."
2366 (gnus-category-prepare))
2368 (defun gnus-category-exit ()
2369 "Return to the group buffer."
2371 (kill-buffer (current-buffer))
2372 (gnus-configure-windows 'group t))
2374 ;; To avoid having 8-bit characters in the source file.
2375 (defvar gnus-category-not (list '! 'not (intern (format "%c" 172))))
2377 (defvar gnus-category-predicate-alist
2378 '((spam . gnus-agent-spam-p)
2379 (short . gnus-agent-short-p)
2380 (long . gnus-agent-long-p)
2381 (low . gnus-agent-low-scored-p)
2382 (high . gnus-agent-high-scored-p)
2383 (read . gnus-agent-read-p)
2384 (true . gnus-agent-true)
2385 (false . gnus-agent-false))
2386 "Mapping from short score predicate symbols to predicate functions.")
2388 (defun gnus-agent-spam-p ()
2389 "Say whether an article is spam or not."
2390 (unless gnus-agent-spam-hashtb
2391 (setq gnus-agent-spam-hashtb (gnus-make-hashtable 1000)))
2392 (if (not (equal (mail-header-references gnus-headers) ""))
2394 (let ((string (gnus-simplify-subject (mail-header-subject gnus-headers))))
2396 (gnus-gethash string gnus-agent-spam-hashtb)
2397 (gnus-sethash string t gnus-agent-spam-hashtb)))))
2399 (defun gnus-agent-short-p ()
2400 "Say whether an article is short or not."
2401 (< (mail-header-lines gnus-headers) gnus-agent-short-article))
2403 (defun gnus-agent-long-p ()
2404 "Say whether an article is long or not."
2405 (> (mail-header-lines gnus-headers) gnus-agent-long-article))
2407 (defun gnus-agent-low-scored-p ()
2408 "Say whether an article has a low score or not."
2409 (< gnus-score gnus-agent-low-score))
2411 (defun gnus-agent-high-scored-p ()
2412 "Say whether an article has a high score or not."
2413 (> gnus-score gnus-agent-high-score))
2415 (defun gnus-agent-read-p ()
2416 "Say whether an article is read or not."
2417 (gnus-member-of-range (mail-header-number gnus-headers)
2418 (gnus-info-read (gnus-get-info gnus-newsgroup-name))))
2420 (defun gnus-category-make-function (predicate)
2421 "Make a function from PREDICATE."
2422 (let ((func (gnus-category-make-function-1 predicate)))
2423 (if (and (= (length func) 1)
2424 (symbolp (car func)))
2426 (gnus-byte-compile `(lambda () ,func)))))
2428 (defun gnus-agent-true ()
2432 (defun gnus-agent-false ()
2436 (defun gnus-category-make-function-1 (predicate)
2437 "Make a function from PREDICATE."
2439 ;; Functions are just returned as is.
2440 ((or (symbolp predicate)
2441 (functionp predicate))
2442 `(,(or (cdr (assq predicate gnus-category-predicate-alist))
2444 ;; More complex predicate.
2447 ((memq (car predicate) '(& and))
2449 ((memq (car predicate) '(| or))
2451 ((memq (car predicate) gnus-category-not)
2453 ,@(mapcar 'gnus-category-make-function-1 (cdr predicate))))
2455 (error "Unknown predicate type: %s" predicate))))
2457 (defun gnus-get-predicate (predicate)
2458 "Return the function implementing PREDICATE."
2459 (or (cdr (assoc predicate gnus-category-predicate-cache))
2460 (let ((func (gnus-category-make-function predicate)))
2461 (setq gnus-category-predicate-cache
2462 (nconc gnus-category-predicate-cache
2463 (list (cons predicate func))))
2466 (defun gnus-predicate-implies-unread (predicate)
2467 "Say whether PREDICATE implies unread articles only.
2468 It is okay to miss some cases, but there must be no false positives.
2469 That is, if this function returns true, then indeed the predicate must
2470 return only unread articles."
2471 (gnus-function-implies-unread-1 (gnus-category-make-function predicate)))
2473 (defun gnus-function-implies-unread-1 (function)
2474 (cond ((eq function (symbol-function 'gnus-agent-read-p))
2478 ((functionp function)
2480 ((memq (car function) '(or and not))
2481 (apply (car function)
2482 (mapcar 'gnus-function-implies-unread-1 (cdr function))))
2484 (error "Unknown function: %s" function))))
2486 (defun gnus-group-category (group)
2487 "Return the category GROUP belongs to."
2488 (unless gnus-category-group-cache
2489 (setq gnus-category-group-cache (gnus-make-hashtable 1000))
2490 (let ((cs gnus-category-alist)
2492 (while (setq cat (pop cs))
2493 (setq groups (gnus-agent-cat-groups cat))
2495 (gnus-sethash (pop groups) cat gnus-category-group-cache)))))
2496 (or (gnus-gethash group gnus-category-group-cache)
2497 (assq 'default gnus-category-alist)))
2499 (defun gnus-agent-expire-group (group &optional articles force)
2500 "Expire all old articles in GROUP.
2501 If you want to force expiring of certain articles, this function can
2502 take ARTICLES, and FORCE parameters as well.
2504 The articles on which the expiration process runs are selected as follows:
2505 if ARTICLES is null, all read and unmarked articles.
2506 if ARTICLES is t, all articles.
2507 if ARTICLES is a list, just those articles.
2508 FORCE is equivalent to setting the expiration predicates to true."
2510 (list (let ((def (or (gnus-group-group-name)
2511 gnus-newsgroup-name)))
2512 (let ((select (read-string (if def
2513 (concat "Group Name ("
2516 (if (and (equal "" select)
2522 (gnus-agent-expire articles group force)
2523 (let ( ;; Bind gnus-agent-expire-stats to enable tracking of
2524 ;; expiration statistics of this single group
2525 (gnus-agent-expire-stats (list 0 0 0.0)))
2526 (if (or (not (eq articles t))
2528 (concat "Are you sure that you want to "
2529 "expire all articles in " group ".")))
2530 (let ((gnus-command-method (gnus-find-method-for-group group))
2531 (overview (gnus-get-buffer-create " *expire overview*"))
2534 (let ((active-file (gnus-agent-lib-file "active")))
2535 (when (file-exists-p active-file)
2537 (nnheader-insert-file-contents active-file)
2538 (gnus-active-to-gnus-format
2540 (setq orig (gnus-make-hashtable
2541 (count-lines (point-min) (point-max))))))
2543 (gnus-agent-expire-group-1
2544 group overview (gnus-gethash-safe group orig)
2546 (gnus-agent-write-active active-file orig t)))
2547 (kill-buffer overview))))
2548 (gnus-message 4 (gnus-agent-expire-done-message)))))
2550 (defun gnus-agent-expire-group-1 (group overview active articles force)
2551 ;; Internal function - requires caller to have set
2552 ;; gnus-command-method, initialized overview buffer, and to have
2553 ;; provided a non-nil active
2555 (let ((dir (gnus-agent-group-pathname group)))
2556 (when (boundp 'gnus-agent-expire-current-dirs)
2557 (set 'gnus-agent-expire-current-dirs
2559 (symbol-value 'gnus-agent-expire-current-dirs))))
2561 (if (and (not force)
2562 (eq 'DISABLE (gnus-agent-find-parameter group
2563 'agent-enable-expiration)))
2564 (gnus-message 5 "Expiry skipping over %s" group)
2565 (gnus-message 5 "Expiring articles in %s" group)
2566 (gnus-agent-load-alist group)
2567 (let* ((stats (if (boundp 'gnus-agent-expire-stats)
2568 ;; Use the list provided by my caller
2569 (symbol-value 'gnus-agent-expire-stats)
2570 ;; otherwise use my own temporary list
2572 (info (gnus-get-info group))
2573 (alist gnus-agent-article-alist)
2574 (day (- (time-to-days (current-time))
2575 (gnus-agent-find-parameter group 'agent-days-until-old)))
2576 (specials (if (and alist
2578 ;; This could be a bit of a problem. I need to
2579 ;; keep the last article to avoid refetching
2580 ;; headers when using nntp in the backend. At
2581 ;; the same time, if someone uses a backend
2582 ;; that supports article moving then I may have
2583 ;; to remove the last article to complete the
2584 ;; move. Right now, I'm going to assume that
2585 ;; FORCE overrides specials.
2586 (list (caar (last alist)))))
2587 (unreads ;; Articles that are excluded from the
2588 ;; expiration process
2589 (cond (gnus-agent-expire-all
2590 ;; All articles are marked read by global decree
2593 ;; All articles are marked read by function
2597 ;; Unread articles are marked protected from
2598 ;; expiration Don't call
2599 ;; gnus-list-of-unread-articles as it returns
2600 ;; articles that have not been fetched into the
2603 (gnus-agent-unread-articles group)))
2605 ;; All articles EXCEPT those named by the caller
2606 ;; are protected from expiration
2607 (gnus-sorted-difference
2608 (gnus-uncompress-range
2610 (caar (last alist))))
2611 (sort articles '<)))))
2612 (marked ;; More articles that are excluded from the
2613 ;; expiration process
2614 (cond (gnus-agent-expire-all
2615 ;; All articles are unmarked by global decree
2618 ;; All articles are unmarked by function
2622 ;; All articles may as well be unmarked as the
2623 ;; unreads list already names the articles we are
2627 ;; Ticked and/or dormant articles are excluded
2630 (gnus-uncompress-range
2631 (cdr (assq 'tick (gnus-info-marks info))))
2632 (gnus-uncompress-range
2634 (gnus-info-marks info))))))))
2635 (nov-file (concat dir ".overview"))
2641 ;; The normal article alist contains elements that look like
2642 ;; (article# . fetch_date) I need to combine other
2643 ;; information with this list. For example, a flag indicating
2644 ;; that a particular article MUST BE KEPT. To do this, I'm
2645 ;; going to transform the elements to look like (article#
2646 ;; fetch_date keep_flag NOV_entry_marker) Later, I'll reverse
2647 ;; the process to generate the expired article alist.
2649 ;; Convert the alist elements to (article# fetch_date nil
2651 (setq dlist (mapcar (lambda (e)
2652 (list (car e) (cdr e) nil nil)) alist))
2654 ;; Convert the keep lists to elements that look like (article#
2655 ;; nil keep_flag nil) then append it to the expanded dlist
2656 ;; These statements are sorted by ascending precidence of the
2658 (setq dlist (nconc dlist
2660 (list e nil 'unread nil))
2662 (setq dlist (nconc dlist
2664 (list e nil 'marked nil))
2666 (setq dlist (nconc dlist
2668 (list e nil 'special nil))
2671 (set-buffer overview)
2673 (buffer-disable-undo)
2674 (when (file-exists-p nov-file)
2675 (gnus-message 7 "gnus-agent-expire: Loading overview...")
2676 (nnheader-insert-file-contents nov-file)
2677 (goto-char (point-min))
2680 (while (< (setq p (point)) (point-max))
2682 ;; If I successfully read an integer (the plus zero
2683 ;; ensures a numeric type), prepend a marker entry
2685 (push (list (+ 0 (read (current-buffer))) nil nil
2686 (set-marker (make-marker) p))
2689 (gnus-message 1 "gnus-agent-expire: read error \
2690 occurred when reading expression at %s in %s. Skipping to next \
2691 line." (point) nov-file)))
2692 ;; Whether I succeeded, or failed, it doesn't matter.
2693 ;; Move to the next line then try again.
2697 7 "gnus-agent-expire: Loading overview... Done"))
2698 (set-buffer-modified-p nil)
2700 ;; At this point, all of the information is in dlist. The
2701 ;; only problem is that much of it is spread across multiple
2702 ;; entries. Sort then MERGE!!
2703 (gnus-message 7 "gnus-agent-expire: Sorting entries... ")
2704 ;; If two entries have the same article-number then sort by
2705 ;; ascending keep_flag.
2712 (cond ((< (nth 0 a) (nth 0 b))
2714 ((> (nth 0 a) (nth 0 b))
2717 (let ((a (or (symbol-value (nth 2 a))
2719 (b (or (symbol-value (nth 2 b))
2722 (gnus-message 7 "gnus-agent-expire: Sorting entries... Done")
2723 (gnus-message 7 "gnus-agent-expire: Merging entries... ")
2724 (let ((dlist dlist))
2725 (while (cdr dlist) ; I'm not at the end-of-list
2726 (if (eq (caar dlist) (caadr dlist))
2727 (let ((first (cdr (car dlist)))
2728 (secnd (cdr (cadr dlist))))
2729 (setcar first (or (car first)
2730 (car secnd))) ; fetch_date
2731 (setq first (cdr first)
2733 (setcar first (or (car first)
2734 (car secnd))) ; Keep_flag
2735 (setq first (cdr first)
2737 (setcar first (or (car first)
2738 (car secnd))) ; NOV_entry_marker
2740 (setcdr dlist (cddr dlist)))
2741 (setq dlist (cdr dlist)))))
2742 (gnus-message 7 "gnus-agent-expire: Merging entries... Done")
2744 (let* ((len (float (length dlist)))
2748 (let ((new-completed (truncate (* 100.0
2749 (/ (setq cnt (1+ cnt))
2752 (when (> new-completed completed)
2753 (setq completed new-completed)
2754 (gnus-message 7 "%3d%% completed..." completed)))
2755 (let* ((entry (car dlist))
2756 (article-number (nth 0 entry))
2757 (fetch-date (nth 1 entry))
2758 (keep (nth 2 entry))
2759 (marker (nth 3 entry)))
2762 ;; Kept articles are unread, marked, or special.
2764 (gnus-agent-message 10
2765 "gnus-agent-expire: %s:%d: Kept %s article%s."
2766 group article-number keep (if fetch-date " and file" ""))
2768 (unless (file-exists-p
2769 (concat dir (number-to-string
2771 (setf (nth 1 entry) nil)
2772 (gnus-agent-message 3 "gnus-agent-expire cleared \
2773 download flag on %s:%d as the cached article file is missing."
2774 group (caar dlist)))
2776 (gnus-message 1 "gnus-agent-expire detected a \
2777 missing NOV entry. Run gnus-agent-regenerate-group to restore it.")))
2778 (gnus-agent-append-to-list
2780 (cons article-number fetch-date)))
2782 ;; The following articles are READ, UNMARKED, and
2783 ;; ORDINARY. See if they can be EXPIRED!!!
2786 ((not (integerp fetch-date))
2787 'read) ;; never fetched article (may expire
2789 ((not (file-exists-p
2790 (concat dir (number-to-string
2792 (setf (nth 1 entry) nil)
2793 'externally-expired) ;; Can't find the cached
2794 ;; article. Handle case
2795 ;; as though this article
2796 ;; was never fetched.
2798 ;; We now have the arrival day, so we see
2799 ;; whether it's old enough to be expired.
2805 ;; I found some reason to expire this entry.
2807 (let ((actions nil))
2808 (when (memq type '(forced expired))
2809 (ignore-errors ; Just being paranoid.
2810 (let ((file-name (concat dir (number-to-string
2812 (incf (nth 2 stats) (nth 7 (file-attributes file-name)))
2813 (incf (nth 1 stats))
2814 (delete-file file-name))
2815 (push "expired cached article" actions))
2816 (setf (nth 1 entry) nil)
2820 (push "NOV entry removed" actions)
2823 (incf (nth 0 stats))
2825 (let ((from (gnus-point-at-bol))
2826 (to (progn (forward-line 1) (point))))
2827 (incf (nth 2 stats) (- to from))
2828 (delete-region from to)))
2830 ;; If considering all articles is set, I can only
2831 ;; expire article IDs that are no longer in the
2832 ;; active range (That is, articles that preceed the
2833 ;; first article in the new alist).
2834 (if (and gnus-agent-consider-all-articles
2835 (>= article-number (car active)))
2836 ;; I have to keep this ID in the alist
2837 (gnus-agent-append-to-list
2838 tail-alist (cons article-number fetch-date))
2839 (push (format "Removed %s article number from \
2840 article alist" type) actions))
2843 (gnus-agent-message 8 "gnus-agent-expire: %s:%d: %s"
2844 group article-number
2845 (mapconcat 'identity actions ", ")))))
2848 10 "gnus-agent-expire: %s:%d: Article kept as \
2849 expiration tests failed." group article-number)
2850 (gnus-agent-append-to-list
2851 tail-alist (cons article-number fetch-date)))
2854 ;; Clean up markers as I want to recycle this buffer
2855 ;; over several groups.
2857 (set-marker marker nil))
2859 (setq dlist (cdr dlist))))
2861 (setq alist (cdr alist))
2863 (let ((inhibit-quit t))
2864 (unless (equal alist gnus-agent-article-alist)
2865 (setq gnus-agent-article-alist alist)
2866 (gnus-agent-save-alist group)
2868 ;; The active list changed, set the agent's active range
2869 ;; to match the beginning of the list.
2871 (setcar active (caar alist))))
2873 (when (buffer-modified-p)
2874 (gnus-make-directory dir)
2875 (write-region-as-coding-system gnus-agent-file-coding-system
2876 (point-min) (point-max) nov-file
2878 ;; clear the modified flag as that I'm not confused by
2879 ;; its status on the next pass through this routine.
2880 (set-buffer-modified-p nil))
2882 (when (eq articles t)
2883 (gnus-summary-update-info))))))))
2885 (defun gnus-agent-expire (&optional articles group force)
2886 "Expire all old articles.
2887 If you want to force expiring of certain articles, this function can
2888 take ARTICLES, GROUP and FORCE parameters as well.
2890 The articles on which the expiration process runs are selected as follows:
2891 if ARTICLES is null, all read and unmarked articles.
2892 if ARTICLES is t, all articles.
2893 if ARTICLES is a list, just those articles.
2894 Setting GROUP will limit expiration to that group.
2895 FORCE is equivalent to setting the expiration predicates to true."
2899 (gnus-agent-expire-group group articles force)
2900 (if (or (not (eq articles t))
2901 (yes-or-no-p "Are you sure that you want to expire all \
2902 articles in every agentized group."))
2903 (let ((methods (gnus-agent-covered-methods))
2904 ;; Bind gnus-agent-expire-current-dirs to enable tracking
2905 ;; of agent directories.
2906 (gnus-agent-expire-current-dirs nil)
2907 ;; Bind gnus-agent-expire-stats to enable tracking of
2908 ;; expiration statistics across all groups
2909 (gnus-agent-expire-stats (list 0 0 0.0))
2910 gnus-command-method overview orig)
2911 (setq overview (gnus-get-buffer-create " *expire overview*"))
2913 (while (setq gnus-command-method (pop methods))
2914 (let ((active-file (gnus-agent-lib-file "active")))
2915 (when (file-exists-p active-file)
2917 (nnheader-insert-file-contents active-file)
2918 (gnus-active-to-gnus-format
2920 (setq orig (gnus-make-hashtable
2921 (count-lines (point-min) (point-max))))))
2922 (dolist (expiring-group (gnus-groups-from-server
2923 gnus-command-method))
2925 (gnus-gethash-safe expiring-group orig)))
2929 (gnus-agent-expire-group-1
2930 expiring-group overview active articles force)))))
2931 (gnus-agent-write-active active-file orig t))))
2932 (kill-buffer overview))
2933 (gnus-agent-expire-unagentized-dirs)
2934 (gnus-message 4 (gnus-agent-expire-done-message))))))
2936 (defun gnus-agent-expire-done-message ()
2937 (if (and (> gnus-verbose 4)
2938 (boundp 'gnus-agent-expire-stats))
2939 (let* ((stats (symbol-value 'gnus-agent-expire-stats))
2940 (size (nth 2 stats))
2941 (units '(B KB MB GB)))
2942 (while (and (> size 1024.0)
2944 (setq size (/ size 1024.0)
2947 (format "Expiry recovered %d NOV entries, deleted %d files,\
2954 (defun gnus-agent-expire-unagentized-dirs ()
2955 (when (and gnus-agent-expire-unagentized-dirs
2956 (boundp 'gnus-agent-expire-current-dirs))
2957 (let* ((keep (gnus-make-hashtable))
2958 ;; Formally bind gnus-agent-expire-current-dirs so that the
2959 ;; compiler will not complain about free references.
2960 (gnus-agent-expire-current-dirs
2961 (symbol-value 'gnus-agent-expire-current-dirs))
2964 (gnus-sethash gnus-agent-directory t keep)
2965 (while gnus-agent-expire-current-dirs
2966 (setq dir (pop gnus-agent-expire-current-dirs))
2967 (when (and (stringp dir)
2968 (file-directory-p dir))
2969 (while (not (gnus-gethash dir keep))
2970 (gnus-sethash dir t keep)
2971 (setq dir (file-name-directory (directory-file-name dir))))))
2978 "Given a directory, check it and its subdirectories for
2979 membership in the keep hash. If it isn't found, add
2981 (let ((files (directory-files d))
2983 (while (setq file (pop files))
2984 (cond ((equal file ".") ; Ignore self
2986 ((equal file "..") ; Ignore parent
2988 ((equal file ".overview")
2989 ;; Directory must contain .overview to be
2990 ;; agent's cache of a group.
2991 (let ((d (file-name-as-directory d))
2993 ;; Search ancestor's for last directory NOT
2994 ;; found in keep hash.
2995 (while (not (gnus-gethash
2996 (setq d (file-name-directory d)) keep))
2998 d (directory-file-name d)))
2999 ;; if ANY ancestor was NOT in keep hash and
3000 ;; it it's already in to-remove, add it to
3003 (not (member r to-remove)))
3004 (push r to-remove))))
3005 ((file-directory-p (setq file (nnheader-concat d file)))
3006 (funcall checker file)))))))))
3007 (funcall checker (expand-file-name gnus-agent-directory))
3009 (when (and to-remove
3010 (or gnus-expert-user
3012 "gnus-agent-expire has identified local directories that are\
3013 not currently required by any agentized group. Do you wish to consider\
3016 (let ((dir (pop to-remove)))
3017 (if (gnus-y-or-n-p (format "Delete %s? " dir))
3018 (let* (delete-recursive
3023 (if (file-directory-p f-or-d)
3025 (delete-directory f-or-d)
3028 (or (member f '("." ".."))
3029 (funcall delete-recursive
3032 (directory-files f-or-d))
3033 (delete-directory f-or-d)))
3034 (delete-file f-or-d)))))))
3035 (funcall delete-recursive dir))))))))))
3038 (defun gnus-agent-batch ()
3039 "Start Gnus, send queue and fetch session."
3041 (let ((init-file-user "")
3042 (gnus-always-read-dribble-file t))
3044 (let ((gnus-agent-confirmation-function 'gnus-agent-batch-confirmation))
3045 (gnus-group-send-queue)
3046 (gnus-agent-fetch-session)))
3048 (defun gnus-agent-unread-articles (group)
3049 (let* ((read (gnus-info-read (gnus-get-info group)))
3050 (known (gnus-agent-load-alist group))
3052 (tail-unread unread))
3053 (while (and known read)
3054 (let ((candidate (car (pop known))))
3055 (while (let* ((range (car read))
3056 (min (if (numberp range) range (car range)))
3057 (max (if (numberp range) range (cdr range))))
3058 (cond ((or (not min)
3060 (gnus-agent-append-to-list tail-unread candidate)
3063 (setq read (cdr read))
3064 ;; return t so that I always loop one more
3065 ;; time. If I just iterated off the end of
3066 ;; read, min will become nil and the current
3067 ;; candidate will be added to the unread list.
3070 (gnus-agent-append-to-list tail-unread (car (pop known))))
3073 (defun gnus-agent-uncached-articles (articles group &optional cached-header)
3074 "Restrict ARTICLES to numbers already fetched.
3075 Returns a sublist of ARTICLES that excludes thos article ids in GROUP
3076 that have already been fetched.
3077 If CACHED-HEADER is nil, articles are only excluded if the article itself
3080 ;; Logically equivalent to: (gnus-sorted-difference articles (mapcar
3081 ;; 'car gnus-agent-article-alist))
3083 ;; Functionally, I don't need to construct a temp list using mapcar.
3085 (if (and (or gnus-agent-cache (not gnus-plugged))
3086 (gnus-agent-load-alist group))
3087 (let* ((ref gnus-agent-article-alist)
3089 (uncached (list nil))
3090 (tail-uncached uncached))
3091 (while (and ref arts)
3092 (let ((v1 (car arts))
3094 (cond ((< v1 v2) ; v1 does not appear in the reference list
3095 (gnus-agent-append-to-list tail-uncached v1)
3096 (setq arts (cdr arts)))
3098 (unless (or cached-header (cdar ref)) ; v1 is already cached
3099 (gnus-agent-append-to-list tail-uncached v1))
3100 (setq arts (cdr arts))
3101 (setq ref (cdr ref)))
3102 (t ; reference article (v2) preceeds the list being filtered
3103 (setq ref (cdr ref))))))
3105 (gnus-agent-append-to-list tail-uncached (pop arts)))
3107 ;; if gnus-agent-load-alist fails, no articles are cached.
3110 (defun gnus-agent-retrieve-headers (articles group &optional fetch-old)
3112 (gnus-agent-create-buffer)
3113 (let ((gnus-decode-encoded-word-function 'identity)
3114 (file (gnus-agent-article-name ".overview" group))
3115 cached-articles uncached-articles)
3116 (gnus-make-directory (nnheader-translate-file-chars
3117 (file-name-directory file) t))
3119 ;; Populate temp buffer with known headers
3120 (when (file-exists-p file)
3121 (with-current-buffer gnus-agent-overview-buffer
3123 (let ((nnheader-file-coding-system
3124 gnus-agent-file-coding-system))
3125 (nnheader-insert-nov-file file (car articles)))))
3127 (if (setq uncached-articles (gnus-agent-uncached-articles articles group
3130 ;; Populate nntp-server-buffer with uncached headers
3131 (set-buffer nntp-server-buffer)
3133 (cond ((not (eq 'nov (let (gnus-agent) ; Turn off agent
3134 (gnus-retrieve-headers
3135 uncached-articles group fetch-old))))
3136 (nnvirtual-convert-headers))
3137 ((eq 'nntp (car gnus-current-select-method))
3138 ;; The author of gnus-get-newsgroup-headers-xover
3139 ;; reports that the XOVER command is commonly
3140 ;; unreliable. The problem is that recently
3141 ;; posted articles may not be entered into the
3142 ;; NOV database in time to respond to my XOVER
3145 ;; I'm going to use his assumption that the NOV
3146 ;; database is updated in order of ascending
3147 ;; article ID. Therefore, a response containing
3148 ;; article ID N implies that all articles from 1
3149 ;; to N-1 are up-to-date. Therefore, missing
3150 ;; articles in that range have expired.
3152 (set-buffer nntp-server-buffer)
3153 (let* ((fetched-articles (list nil))
3154 (tail-fetched-articles fetched-articles)
3155 (min (cond ((numberp fetch-old)
3156 (max 1 (- (car articles) fetch-old)))
3161 (max (car (last articles))))
3163 ;; Get the list of articles that were fetched
3164 (goto-char (point-min))
3165 (let ((pm (point-max)))
3166 (while (< (point) pm)
3167 (when (looking-at "[0-9]+\t")
3168 (gnus-agent-append-to-list
3169 tail-fetched-articles
3170 (read (current-buffer))))
3173 ;; Clip this list to the headers that will
3174 ;; actually be returned
3175 (setq fetched-articles (gnus-list-range-intersection
3176 (cdr fetched-articles)
3179 ;; Clip the uncached articles list to exclude
3180 ;; IDs after the last FETCHED header. The
3181 ;; excluded IDs may be fetchable using HEAD.
3182 (if (car tail-fetched-articles)
3183 (setq uncached-articles
3184 (gnus-list-range-intersection
3186 (cons (car uncached-articles)
3187 (car tail-fetched-articles)))))
3189 ;; Create the list of articles that were
3190 ;; "successfully" fetched. Success, in this
3191 ;; case, means that the ID should not be
3192 ;; fetched again. In the case of an expired
3193 ;; article, the header will not be fetched.
3194 (setq uncached-articles
3195 (gnus-sorted-nunion fetched-articles
3199 ;; Erase the temp buffer
3200 (set-buffer gnus-agent-overview-buffer)
3203 ;; Copy the nntp-server-buffer to the temp buffer
3204 (set-buffer nntp-server-buffer)
3205 (copy-to-buffer gnus-agent-overview-buffer (point-min) (point-max))
3207 ;; Merge the temp buffer with the known headers (found on
3208 ;; disk in FILE) into the nntp-server-buffer
3209 (when (and uncached-articles (file-exists-p file))
3210 (gnus-agent-braid-nov group uncached-articles file))
3212 ;; Save the new set of known headers to FILE
3213 (set-buffer nntp-server-buffer)
3214 (gnus-agent-check-overview-buffer)
3215 (write-region-as-coding-system
3216 gnus-agent-file-coding-system
3217 (point-min) (point-max) file nil 'silent)
3219 ;; Update the group's article alist to include the newly
3220 ;; fetched articles.
3221 (gnus-agent-load-alist group)
3222 (gnus-agent-save-alist group uncached-articles nil)
3225 ;; Copy the temp buffer to the nntp-server-buffer
3226 (set-buffer nntp-server-buffer)
3228 (insert-buffer-substring gnus-agent-overview-buffer)))
3231 (not (numberp fetch-old)))
3232 t ; Don't remove anything.
3233 (nnheader-nov-delete-outside-range
3234 (if fetch-old (max 1 (- (car articles) fetch-old))
3236 (car (last articles)))
3241 (defun gnus-agent-request-article (article group)
3242 "Retrieve ARTICLE in GROUP from the agent cache."
3243 (when (and gnus-agent
3244 (or gnus-agent-cache
3247 (let* ((gnus-command-method (gnus-find-method-for-group group))
3248 (file (gnus-agent-article-name (number-to-string article) group))
3249 (buffer-read-only nil))
3250 (when (and (file-exists-p file)
3251 (> (nth 7 (file-attributes file)) 0))
3253 (gnus-kill-all-overlays)
3254 (insert-file-contents-as-coding-system gnus-cache-coding-system file)
3257 (defun gnus-agent-regenerate-group (group &optional reread)
3259 If REREAD is t, all articles in the .overview are marked as unread.
3260 If REREAD is not nil, downloaded articles are marked as unread."
3262 (list (let ((def (or (gnus-group-group-name)
3263 gnus-newsgroup-name)))
3264 (let ((select (read-string (if def
3265 (concat "Group Name ("
3268 (if (and (equal "" select)
3273 (while (let ((c (read-char-exclusive
3274 "Mark as unread: (n)one / (a)ll / all (d)ownloaded articles? (n)"
3276 (cond ((or (eq c ?\r) (eq c ?n) (eq c ?N))
3278 ((or (eq c ?a) (eq c ?A))
3280 ((or (eq c ?d) (eq c ?D))
3281 (throw 'mark 'some)))
3282 (message "Ignoring unexpected input")
3285 (gnus-message 5 "Regenerating in %s" group)
3286 (let* ((gnus-command-method (or gnus-command-method
3287 (gnus-find-method-for-group group)))
3288 (file (gnus-agent-article-name ".overview" group))
3289 (dir (file-name-directory file))
3291 (downloaded (if (file-exists-p dir)
3292 (sort (mapcar (lambda (name) (string-to-int name))
3293 (directory-files dir nil "^[0-9]+$" t))
3295 (progn (gnus-make-directory dir) nil)))
3300 (mm-with-unibyte-buffer
3301 (if (file-exists-p file)
3302 (let ((nnheader-file-coding-system
3303 gnus-agent-file-coding-system))
3304 (nnheader-insert-file-contents file)))
3305 (set-buffer-modified-p nil)
3307 ;; Load the article IDs found in the overview file. As a
3308 ;; side-effect, validate the file contents.
3312 (goto-char (point-min))
3313 (while (< (point) (point-max))
3314 (cond ((and (looking-at "[0-9]+\t")
3315 (<= (- (match-end 0) (match-beginning 0)) 9))
3316 (push (read (current-buffer)) nov-arts)
3318 (let ((l1 (car nov-arts))
3319 (l2 (cadr nov-arts)))
3323 (gnus-message 3 "gnus-agent-regenerate-group: NOV\
3324 entries are NOT in ascending order.")
3325 ;; Don't sort now as I haven't verified
3326 ;; that every line begins with a number
3330 (gnus-message 4 "gnus-agent-regenerate-group: NOV\
3331 entries contained duplicate of article %s. Duplicate deleted." l1)
3333 (setq nov-arts (cdr nov-arts))))))
3335 (gnus-message 1 "gnus-agent-regenerate-group: NOV\
3336 entries contained line that did not begin with an article number. Deleted\
3338 (gnus-delete-line))))
3341 (gnus-message 5 "gnus-agent-regenerate-group: Sorting NOV\
3342 entries into ascending order.")
3343 (sort-numeric-fields 1 (point-min) (point-max))
3344 (setq nov-arts nil)))))
3345 (gnus-agent-check-overview-buffer)
3347 ;; Construct a new article alist whose nodes match every header
3348 ;; in the .overview file. As a side-effect, missing headers are
3349 ;; reconstructed from the downloaded article file.
3350 (while (or downloaded nov-arts)
3351 (cond ((and downloaded
3353 (> (car downloaded) (car nov-arts))))
3354 ;; This entry is missing from the overview file
3355 (gnus-message 3 "Regenerating NOV %s %d..." group
3357 (let ((file (concat dir (number-to-string (car downloaded)))))
3358 (mm-with-unibyte-buffer
3359 (nnheader-insert-file-contents file)
3360 (nnheader-remove-body)
3361 (setq header (nnheader-parse-naked-head)))
3362 (mail-header-set-number header (car downloaded))
3364 (let ((key (concat "^" (int-to-string (car nov-arts))
3366 (or (re-search-backward key nil t)
3367 (re-search-forward key))
3369 (goto-char (point-min)))
3370 (nnheader-insert-nov header))
3371 (setq nov-arts (cons (car downloaded) nov-arts)))
3372 ((eq (car downloaded) (car nov-arts))
3373 ;; This entry in the overview has been downloaded
3374 (push (cons (car downloaded)
3376 (nth 5 (file-attributes
3377 (concat dir (number-to-string
3378 (car downloaded))))))) alist)
3379 (setq downloaded (cdr downloaded))
3380 (setq nov-arts (cdr nov-arts)))
3382 ;; This entry in the overview has not been downloaded
3383 (push (cons (car nov-arts) nil) alist)
3384 (setq nov-arts (cdr nov-arts)))))
3386 ;; When gnus-agent-consider-all-articles is set,
3387 ;; gnus-agent-regenerate-group should NOT remove article IDs from
3388 ;; the alist. Those IDs serve as markers to indicate that an
3389 ;; attempt has been made to fetch that article's header.
3391 ;; When gnus-agent-consider-all-articles is NOT set,
3392 ;; gnus-agent-regenerate-group can remove the article ID of every
3393 ;; article (with the exception of the last ID in the list - it's
3394 ;; special) that no longer appears in the overview. In this
3395 ;; situtation, the last article ID in the list implies that it,
3396 ;; and every article ID preceeding it, have been fetched from the
3398 (if gnus-agent-consider-all-articles
3399 ;; Restore all article IDs that were not found in the overview file.
3400 (let* ((n (cons nil alist))
3402 (o (gnus-agent-load-alist group)))
3404 (let ((nID (caadr n))
3407 (setq n (setcdr n (list (list oID))))
3410 (setcdr n (cons (list oID) (cdr n)))
3416 (setq n (cdr n))))))
3417 (setq alist (cdr merged)))
3418 ;; Restore the last article ID if it is not already in the new alist
3419 (let ((n (last alist))
3420 (o (last (gnus-agent-load-alist group))))
3424 (push (cons (caar o) nil) alist))
3425 ((< (caar n) (caar o))
3426 (setcdr n (list (car o)))))))
3428 (let ((inhibit-quit t))
3429 (if (setq regenerated (buffer-modified-p))
3430 (write-region-as-coding-system
3431 gnus-agent-file-coding-system
3432 (point-min) (point-max) file nil 'silent))
3434 (setq regenerated (or regenerated
3435 (and reread gnus-agent-article-alist)
3436 (not (equal alist gnus-agent-article-alist)))
3439 (setq gnus-agent-article-alist alist)
3442 (gnus-agent-save-alist group)))
3445 (when (and reread gnus-agent-article-alist)
3446 (gnus-make-ascending-articles-unread
3448 (delq nil (mapcar (function (lambda (c)
3449 (cond ((eq reread t)
3453 gnus-agent-article-alist)))
3455 (when (gnus-buffer-live-p gnus-group-buffer)
3456 (gnus-group-update-group group t)
3460 (gnus-message 5 nil)
3464 (defun gnus-agent-regenerate (&optional clean reread)
3465 "Regenerate all agent covered files.
3466 If CLEAN, don't read existing active files."
3469 (gnus-message 4 "Regenerating Gnus agent files...")
3470 (dolist (gnus-command-method (gnus-agent-covered-methods))
3471 (let ((active-file (gnus-agent-lib-file "active"))
3472 active-hashtb active-changed
3474 (gnus-make-directory (file-name-directory active-file))
3476 (setq active-hashtb (gnus-make-hashtable 1000))
3477 (mm-with-unibyte-buffer
3478 (if (file-exists-p active-file)
3479 (let ((nnheader-file-coding-system
3480 gnus-agent-file-coding-system))
3481 (nnheader-insert-file-contents active-file))
3482 (setq active-changed t))
3483 (gnus-active-to-gnus-format
3484 nil (setq active-hashtb
3485 (gnus-make-hashtable
3486 (count-lines (point-min) (point-max)))))))
3487 (dolist (group (gnus-groups-from-server gnus-command-method))
3488 (setq regenerated (or (gnus-agent-regenerate-group group reread)
3490 (let ((min (or (caar gnus-agent-article-alist) 1))
3491 (max (or (caar (last gnus-agent-article-alist)) 0))
3492 (active (gnus-gethash-safe (gnus-group-real-name group)
3494 (read (gnus-info-read (gnus-get-info group))))
3497 (setq active (cons min max)
3499 (gnus-sethash group active active-hashtb))
3500 (when (> (car active) min)
3502 (setq active-changed t))
3503 (when (< (cdr active) max)
3505 (setq active-changed t)))))
3506 (when active-changed
3507 (setq regenerated t)
3508 (gnus-message 4 "Regenerate %s" active-file)
3509 (let ((nnmail-active-file-coding-system
3510 gnus-agent-file-coding-system))
3511 (gnus-write-active-file active-file active-hashtb)))))
3512 (gnus-message 4 "Regenerating Gnus agent files...done")
3515 (defun gnus-agent-go-online (&optional force)
3516 "Switch servers into online status."
3517 (interactive (list t))
3518 (dolist (server gnus-opened-servers)
3519 (when (eq (nth 1 server) 'offline)
3520 (if (if (eq force 'ask)
3522 (format "Switch %s:%s into online status? "
3523 (caar server) (cadar server)))
3525 (setcar (nthcdr 1 server) 'close)))))
3527 (defun gnus-agent-toggle-group-plugged (group)
3528 "Toggle the status of the server of the current group."
3529 (interactive (list (gnus-group-group-name)))
3530 (let* ((method (gnus-find-method-for-group group))
3531 (status (cadr (assoc method gnus-opened-servers))))
3532 (if (eq status 'offline)
3533 (gnus-server-set-status method 'closed)
3534 (gnus-close-server method)
3535 (gnus-server-set-status method 'offline))
3536 (message "Turn %s:%s from %s to %s." (car method) (cadr method)
3537 (if (eq status 'offline) 'offline 'online)
3538 (if (eq status 'offline) 'online 'offline))))
3540 (defun gnus-agent-group-covered-p (group)
3541 (gnus-agent-method-p (gnus-group-method group)))
3543 (add-hook 'gnus-group-prepare-hook
3547 (when (listp gnus-agent-expire-days)
3550 (gnus-message 1 "WARNING: gnus-agent-expire-days no longer\
3551 supports being set to a list.")(sleep-for 3)
3552 (gnus-message 1 "Change your configuration to set it to an\
3553 integer.")(sleep-for 3)
3554 (gnus-message 1 "I am now setting group parameters on each\
3555 group to match the configuration that the list offered.")
3558 (let ((groups (gnus-group-listed-groups)))
3560 (let* ((group (pop groups))
3561 (days gnus-agent-expire-days)
3564 (when (eq 0 (string-match
3567 (throw 'found (cadar days)))
3568 (setq days (cdr days)))
3571 (gnus-group-set-parameter group 'agent-days-until-old
3574 (let ((h gnus-group-prepare-hook))
3576 (let ((func (pop h)))
3577 (when (and (listp func)
3578 (eq (cadr (caddr func)) 'gnus-agent-do-once))
3579 (remove-hook 'gnus-group-prepare-hook func)
3582 (gnus-message 1 "I have finished setting group parameters on\
3583 each group. You may now customize your groups and/or topics to control the\
3586 (provide 'gnus-agent)
3588 ;;; gnus-agent.el ends here