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1 ;;; gnus-start.el --- startup functions for Gnus
3 ;; Copyright (C) 1996-2017 Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
6 ;; Keywords: news
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software: you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation, either version 3 of the License, or
13 ;; (at your option) any later version.
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
23 ;;; Commentary:
25 ;;; Code:
27 (require 'gnus)
28 (require 'gnus-win)
29 (require 'gnus-int)
30 (require 'gnus-spec)
31 (require 'gnus-range)
32 (require 'gnus-util)
33 (require 'gnus-cloud)
34 (autoload 'message-make-date "message")
35 (autoload 'gnus-agent-read-servers-validate "gnus-agent")
36 (autoload 'gnus-agent-save-local "gnus-agent")
37 (autoload 'gnus-agent-possibly-alter-active "gnus-agent")
39 (eval-when-compile
40 (require 'cl))
42 (defvar gnus-agent-covered-methods)
43 (defvar gnus-agent-file-loading-local)
44 (defvar gnus-agent-file-loading-cache)
46 (defcustom gnus-startup-file (nnheader-concat gnus-home-directory ".newsrc")
47 "Your `.newsrc' file.
48 `.newsrc-SERVER' will be used instead if that exists."
49 :group 'gnus-start
50 :type 'file)
52 (defcustom gnus-backup-startup-file 'never
53 "Control use of version numbers for backups of `gnus-startup-file'.
54 This variable takes the same values as the `version-control'
55 variable."
56 :version "22.1"
57 :group 'gnus-start
58 :type '(choice (const :tag "Never" never)
59 (const :tag "If existing" nil)
60 (other :tag "Always" t)))
62 (defcustom gnus-save-startup-file-via-temp-buffer t
63 "Whether to write the startup file contents to a buffer then save
64 the buffer or write directly to the file. The buffer is faster
65 because all of the contents are written at once. The direct write
66 uses considerably less memory."
67 :version "22.1"
68 :group 'gnus-start
69 :type '(choice (const :tag "Write via buffer" t)
70 (const :tag "Write directly to file" nil)))
72 (defcustom gnus-init-file (nnheader-concat gnus-home-directory ".gnus")
73 "Your Gnus Emacs-Lisp startup file name.
74 If a file with the `.el' or `.elc' suffixes exists, it will be read instead."
75 :group 'gnus-start
76 :type 'file)
78 (defcustom gnus-site-init-file
79 (condition-case nil
80 (concat (file-name-directory
81 (directory-file-name installation-directory))
82 "site-lisp/gnus-init")
83 (error nil))
84 "The site-wide Gnus Emacs-Lisp startup file name, or nil if none.
85 If a file with the `.el' or `.elc' suffixes exists, it will be read instead."
86 :group 'gnus-start
87 :type '(choice file (const nil)))
89 (defcustom gnus-use-dribble-file t
90 "Non-nil means that Gnus will use a dribble file to store user updates.
91 If Emacs should crash without saving the .newsrc files, complete
92 information can be restored from the dribble file."
93 :group 'gnus-dribble-file
94 :type 'boolean)
96 (defcustom gnus-dribble-directory nil
97 "The directory where dribble files will be saved.
98 If this variable is nil, the directory where the .newsrc files are
99 saved will be used."
100 :group 'gnus-dribble-file
101 :type '(choice directory (const nil)))
103 (defcustom gnus-check-new-newsgroups 'ask-server
104 "Non-nil means that Gnus will run `gnus-find-new-newsgroups' at startup.
105 This normally finds new newsgroups by comparing the active groups the
106 servers have already reported with those Gnus already knows, either alive
107 or killed.
109 When any of the following are true, `gnus-find-new-newsgroups' will instead
110 ask the servers (primary, secondary, and archive servers) to list new
111 groups since the last time it checked:
112 1. This variable is `ask-server'.
113 2. This variable is a list of select methods (see below).
114 3. Option `gnus-read-active-file' is nil or `some'.
115 4. A prefix argument is given to `gnus-find-new-newsgroups' interactively.
117 Thus, if this variable is `ask-server' or a list of select methods or
118 `gnus-read-active-file' is nil or `some', then the killed list is no
119 longer necessary, so you could safely set `gnus-save-killed-list' to nil.
121 This variable can be a list of select methods which Gnus will query with
122 the `ask-server' method in addition to the primary, secondary, and archive
123 servers.
125 E.g.:
126 (setq gnus-check-new-newsgroups
127 \\='((nntp \"some.server\") (nntp \"other.server\")))
129 If this variable is nil, then you have to tell Gnus explicitly to
130 check for new newsgroups with \\<gnus-group-mode-map>\\[gnus-find-new-newsgroups]."
131 :group 'gnus-start
132 :type '(choice (const :tag "no" nil)
133 (const :tag "by brute force" t)
134 (const :tag "ask servers" ask-server)
135 (repeat :menu-tag "ask additional servers"
136 :tag "ask additional servers"
137 :value ((nntp ""))
138 (sexp :format "%v"))))
140 (defcustom gnus-check-bogus-newsgroups nil
141 "Non-nil means that Gnus will check and remove bogus newsgroup at startup.
142 If this variable is nil, then you have to tell Gnus explicitly to
143 check for bogus newsgroups with \\<gnus-group-mode-map>\\[gnus-group-check-bogus-groups]."
144 :group 'gnus-start-server
145 :type 'boolean)
147 (defcustom gnus-read-active-file 'some
148 "Non-nil means that Gnus will read the entire active file at startup.
149 If this variable is nil, Gnus will only know about the groups in your
150 `.newsrc' file.
152 If this variable is `some', Gnus will try to only read the relevant
153 parts of the active file from the server. Not all servers support
154 this, and it might be quite slow with other servers, but this should
155 generally be faster than both the t and nil value.
157 If you set this variable to nil or `some', you probably still want to
158 be told about new newsgroups that arrive. To do that, set
159 `gnus-check-new-newsgroups' to `ask-server'. This may not work
160 properly with all servers."
161 :group 'gnus-start-server
162 :type '(choice (const nil)
163 (const some)
164 (const t)))
166 (defconst gnus-level-subscribed 5
167 "Groups with levels less than or equal to this variable are subscribed.")
169 (defconst gnus-level-unsubscribed 7
170 "Groups with levels less than or equal to this variable are unsubscribed.
172 Groups with levels less than `gnus-level-subscribed', which
173 should be less than this variable, are subscribed. Groups with
174 levels from `gnus-level-subscribed' (exclusive) upto this
175 variable (inclusive) are unsubscribed. See also
176 `gnus-level-zombie', `gnus-level-killed' and the Info node `(gnus)Group
177 Levels' for details.")
179 (defconst gnus-level-zombie 8
180 "Groups with this level are zombie groups.")
182 (defconst gnus-level-killed 9
183 "Groups with this level are killed.")
185 (defcustom gnus-level-default-subscribed 3
186 "New subscribed groups will be subscribed at this level."
187 :group 'gnus-group-levels
188 :type 'integer)
190 (defcustom gnus-level-default-unsubscribed 6
191 "New unsubscribed groups will be unsubscribed at this level."
192 :group 'gnus-group-levels
193 :type 'integer)
195 (defcustom gnus-activate-level (1+ gnus-level-subscribed)
196 "Groups higher than this level won't be activated on startup.
197 Setting this variable to something low might save lots of time when
198 you have many groups that you aren't interested in."
199 :group 'gnus-group-levels
200 :type 'integer)
202 (defcustom gnus-activate-foreign-newsgroups 4
203 "If nil, Gnus will not check foreign newsgroups at startup.
204 If it is non-nil, it should be a number between one and nine. Foreign
205 newsgroups that have a level lower or equal to this number will be
206 activated on startup. For instance, if you want to active all
207 subscribed newsgroups, but not the rest, you'd set this variable to
208 `gnus-level-subscribed'.
210 If you subscribe to lots of newsgroups from different servers, startup
211 might take a while. By setting this variable to nil, you'll save time,
212 but you won't be told how many unread articles there are in the
213 groups."
214 :group 'gnus-group-levels
215 :type '(choice integer
216 (const :tag "none" nil)))
218 (defcustom gnus-read-newsrc-file t
219 "Non-nil means that Gnus will read the `.newsrc' file.
220 Gnus always reads its own startup file, which is called
221 \".newsrc.eld\". The file called \".newsrc\" is in a format that can
222 be readily understood by other newsreaders. If you don't plan on
223 using other newsreaders, set this variable to nil to save some time on
224 entry."
225 :version "21.1"
226 :group 'gnus-newsrc
227 :type 'boolean)
229 (defcustom gnus-save-newsrc-file t
230 "Non-nil means that Gnus will save the `.newsrc' file.
231 Gnus always saves its own startup file, which is called
232 \".newsrc.eld\". The file called \".newsrc\" is in a format that can
233 be readily understood by other newsreaders. If you don't plan on
234 using other newsreaders, set this variable to nil to save some time on
235 exit."
236 :group 'gnus-newsrc
237 :type 'boolean)
239 (defcustom gnus-save-killed-list t
240 "If non-nil, save the list of killed groups to the startup file.
241 If you set this variable to nil, you'll save both time (when starting
242 and quitting) and space (both memory and disk), but it will also mean
243 that Gnus has no record of which groups are new and which are old, so
244 the automatic new newsgroups subscription methods become meaningless.
246 You should always set `gnus-check-new-newsgroups' to `ask-server' or
247 nil if you set this variable to nil.
249 This variable can also be a regexp. In that case, all groups that do
250 not match this regexp will be removed before saving the list."
251 :group 'gnus-newsrc
252 :type '(radio (sexp :format "Non-nil\n"
253 :match (lambda (widget value)
254 (and value (not (stringp value))))
255 :value t)
256 (const nil)
257 regexp))
259 (defcustom gnus-ignored-newsgroups
260 (mapconcat 'identity
261 '("^to\\." ; not "real" groups
262 "^[0-9. \t]+\\( \\|$\\)" ; all digits in name
263 "^[\"][\"#'()]" ; bogus characters
265 "\\|")
266 "A regexp to match uninteresting newsgroups in the active file.
267 Any lines in the active file matching this regular expression are
268 removed from the newsgroup list before anything else is done to it,
269 thus making them effectively non-existent."
270 :group 'gnus-group-new
271 :type 'regexp)
273 (defcustom gnus-subscribe-newsgroup-method 'gnus-subscribe-zombies
274 "Function(s) called with a group name when new group is detected.
275 A few pre-made functions are supplied: `gnus-subscribe-randomly'
276 inserts new groups at the beginning of the list of groups;
277 `gnus-subscribe-alphabetically' inserts new groups in strict
278 alphabetic order; `gnus-subscribe-hierarchically' inserts new groups
279 in hierarchical newsgroup order; `gnus-subscribe-interactively' asks
280 for your decision; `gnus-subscribe-killed' kills all new groups;
281 `gnus-subscribe-zombies' will make all new groups into zombies;
282 `gnus-subscribe-topics' will enter groups into the topics that
283 claim them."
284 :group 'gnus-group-new
285 :type '(radio (function-item gnus-subscribe-randomly)
286 (function-item gnus-subscribe-alphabetically)
287 (function-item gnus-subscribe-hierarchically)
288 (function-item gnus-subscribe-interactively)
289 (function-item gnus-subscribe-killed)
290 (function-item gnus-subscribe-zombies)
291 (function-item gnus-subscribe-topics)
292 function
293 (repeat function)))
295 (define-obsolete-variable-alias 'gnus-subscribe-newsgroup-hooks
296 'gnus-subscribe-newsgroup-functions "24.3")
297 (defcustom gnus-subscribe-newsgroup-functions nil
298 "Hooks run after you subscribe to a new group.
299 The hooks will be called with new group's name as argument."
300 :version "22.1"
301 :group 'gnus-group-new
302 :type 'hook)
304 (defcustom gnus-subscribe-options-newsgroup-method
305 'gnus-subscribe-alphabetically
306 "Function(s) called to subscribe newsgroups mentioned on \"options -n\" lines.
307 If, for instance, you want to subscribe to all newsgroups in the
308 \"no\" and \"alt\" hierarchies, you'd put the following in your
309 .newsrc file:
311 options -n no.all alt.all
313 Gnus will then subscribe all new newsgroups in these hierarchies
314 with the subscription method in this variable."
315 :group 'gnus-group-new
316 :type '(radio (function-item gnus-subscribe-randomly)
317 (function-item gnus-subscribe-alphabetically)
318 (function-item gnus-subscribe-hierarchically)
319 (function-item gnus-subscribe-interactively)
320 (function-item gnus-subscribe-killed)
321 (function-item gnus-subscribe-zombies)
322 (function-item gnus-subscribe-topics)
323 function
324 (repeat function)))
326 (defcustom gnus-subscribe-hierarchical-interactive nil
327 "If non-nil, Gnus will offer to subscribe hierarchically.
328 When a new hierarchy appears, Gnus will ask the user:
330 'alt.binaries': Do you want to subscribe to this hierarchy? ([d]ys):
332 If the user pressed `d', Gnus will descend the hierarchy, `y' will
333 subscribe to all newsgroups in the hierarchy and `s' will skip this
334 hierarchy in its entirety."
335 :group 'gnus-group-new
336 :type 'boolean)
338 (defcustom gnus-auto-subscribed-categories '(mail post-mail)
339 "New groups from methods of these categories will be subscribed automatically.
340 Note that this variable only deals with new groups. It has no
341 effect whatsoever on old groups. The default is to automatically
342 subscribe all groups from mail-like backends."
343 :version "24.1"
344 :group 'gnus-group-new
345 :type '(repeat symbol))
347 (defcustom gnus-auto-subscribed-groups
348 "^nnml\\|^nnfolder\\|^nnmbox\\|^nnmh\\|^nnbabyl\\|^nnmaildir\\|^nnimap"
349 "All new groups that match this regexp will be subscribed automatically.
350 Note that this variable only deals with new groups. It has no effect
351 whatsoever on old groups.
353 New groups that match this regexp will not be handled by
354 `gnus-subscribe-newsgroup-method'. Instead, they will
355 be subscribed using `gnus-subscribe-options-newsgroup-method'."
356 :group 'gnus-group-new
357 :type 'regexp)
359 (defcustom gnus-options-subscribe nil
360 "All new groups matching this regexp will be subscribed unconditionally.
361 Note that this variable deals only with new newsgroups. This variable
362 does not affect old newsgroups.
364 New groups that match this regexp will not be handled by
365 `gnus-subscribe-newsgroup-method'. Instead, they will
366 be subscribed using `gnus-subscribe-options-newsgroup-method'."
367 :group 'gnus-group-new
368 :type '(choice regexp
369 (const :tag "none" nil)))
371 (defcustom gnus-options-not-subscribe nil
372 "All new groups matching this regexp will be ignored.
373 Note that this variable deals only with new newsgroups. This variable
374 does not affect old (already subscribed) newsgroups."
375 :group 'gnus-group-new
376 :type '(choice regexp
377 (const :tag "none" nil)))
379 (defcustom gnus-modtime-botch nil
380 "Non-nil means .newsrc should be deleted prior to save.
381 Its use is due to the bogus appearance that .newsrc was modified on
382 disc."
383 :group 'gnus-newsrc
384 :type 'boolean)
386 (defcustom gnus-check-bogus-groups-hook nil
387 "A hook run after removing bogus groups."
388 :group 'gnus-start-server
389 :type 'hook)
391 (defcustom gnus-startup-hook nil
392 "A hook called at startup.
393 This hook is called after Gnus is connected to the NNTP server."
394 :group 'gnus-start
395 :type 'hook)
397 (defcustom gnus-before-startup-hook nil
398 "A hook called before startup.
399 This hook is called as the first thing when Gnus is started.
400 See also `gnus-before-resume-hook'."
401 :group 'gnus-start
402 :type 'hook)
404 (defcustom gnus-before-resume-hook nil
405 "A hook called before resuming Gnus after suspend.
406 This hook is called as the first thing when Gnus is resumed after a suspend.
407 See also `gnus-before-startup-hook'."
408 :version "24.4"
409 :group 'gnus-start
410 :type 'hook)
412 (defcustom gnus-started-hook nil
413 "A hook called as the last thing after startup."
414 :group 'gnus-start
415 :type 'hook)
417 (defcustom gnus-setup-news-hook nil
418 "A hook after reading the .newsrc file, but before generating the buffer."
419 :group 'gnus-start
420 :type 'hook)
422 (defcustom gnus-get-top-new-news-hook nil
423 "A hook run just before Gnus checks for new news globally."
424 :version "22.1"
425 :group 'gnus-group-new
426 :type 'hook)
428 (defcustom gnus-get-new-news-hook nil
429 "A hook run just before Gnus checks for new news."
430 :group 'gnus-group-new
431 :type 'hook)
433 (defcustom gnus-after-getting-new-news-hook
434 '(gnus-display-time-event-handler)
435 "A hook run after Gnus checks for new news when Gnus is already running."
436 :version "24.1"
437 :group 'gnus-group-new
438 :type 'hook)
440 (defcustom gnus-read-newsrc-el-hook nil
441 "A hook called after reading the newsrc.eld? file."
442 :group 'gnus-newsrc
443 :type 'hook)
445 (defcustom gnus-save-newsrc-hook nil
446 "A hook called before saving any of the newsrc files."
447 :group 'gnus-newsrc
448 :type 'hook)
450 (defcustom gnus-save-quick-newsrc-hook nil
451 "A hook called just before saving the quick newsrc file.
452 Can be used to turn version control on or off."
453 :group 'gnus-newsrc
454 :type 'hook)
456 (defcustom gnus-save-standard-newsrc-hook nil
457 "A hook called just before saving the standard newsrc file.
458 Can be used to turn version control on or off."
459 :group 'gnus-newsrc
460 :type 'hook)
462 (defcustom gnus-group-mode-hook nil
463 "Hook for Gnus group mode."
464 :group 'gnus-group-various
465 :options '(gnus-topic-mode)
466 :type 'hook)
468 (defcustom gnus-always-read-dribble-file nil
469 "Unconditionally read the dribble file."
470 :group 'gnus-newsrc
471 :type 'boolean)
473 ;;; Internal variables
475 ;; Fixme: deal with old emacs-mule when mm-universal-coding-system is
476 ;; utf-8-emacs.
477 (defvar gnus-ding-file-coding-system mm-universal-coding-system
478 "Coding system for ding file.")
480 (defvar gnus-newsrc-file-version nil)
481 (defvar gnus-override-subscribe-method nil)
482 (defvar gnus-dribble-buffer nil)
483 (defvar gnus-newsrc-options nil
484 "Options line in the .newsrc file.")
486 (defvar gnus-newsrc-options-n nil
487 "List of regexps representing groups to be subscribed/ignored unconditionally.")
489 (defvar gnus-newsrc-last-checked-date nil
490 "Date Gnus last asked server for new newsgroups.")
492 (defvar gnus-current-startup-file nil
493 "Startup file for the current host.")
495 ;; Byte-compiler warning.
496 (defvar gnus-group-line-format)
498 ;; Suggested by Brian Edmonds <edmonds@cs.ubc.ca>.
499 (defvar gnus-init-inhibit nil)
500 (defun gnus-read-init-file (&optional inhibit-next)
501 ;; Don't load .gnus if the -q option was used.
502 (when init-file-user
503 (if gnus-init-inhibit
504 (setq gnus-init-inhibit nil)
505 (setq gnus-init-inhibit inhibit-next)
506 (dolist (file (list gnus-site-init-file gnus-init-file))
507 (when (and file
508 (locate-library file))
509 (if (or debug-on-error debug-on-quit)
510 (load file nil t)
511 (condition-case var
512 (load file nil t)
513 (error
514 (error "Error in %s: %s" file (cadr var))))))))))
516 ;; For subscribing new newsgroup
518 (defun gnus-subscribe-hierarchical-interactive (groups)
519 (let ((groups (sort groups 'string<))
520 prefixes prefix start ans group starts real-group)
521 (while groups
522 (setq prefixes (list "^"))
523 (while (and groups prefixes)
524 (while (not (string-match (car prefixes)
525 (gnus-group-real-name (car groups))))
526 (setq prefixes (cdr prefixes)))
527 (setq prefix (car prefixes))
528 (setq start (1- (length prefix)))
529 (if (and (string-match "[^\\.]\\." (gnus-group-real-name (car groups))
530 start)
531 (cdr groups)
532 (setq prefix
533 (concat "^" (substring
534 (gnus-group-real-name (car groups))
535 0 (match-end 0))))
536 (string-match prefix (gnus-group-real-name (cadr groups))))
537 (progn
538 (push prefix prefixes)
539 (message "Descend hierarchy %s? ([y]nsq): "
540 (substring prefix 1 (1- (length prefix))))
541 (while (not (memq (setq ans (read-char-exclusive))
542 '(?y ?\n ?\r ?n ?s ?q)))
543 (ding)
544 (message "Descend hierarchy %s? ([y]nsq): "
545 (substring prefix 1 (1- (length prefix)))))
546 (cond ((= ans ?n)
547 (while (and groups
548 (setq group (car groups)
549 real-group (gnus-group-real-name group))
550 (string-match prefix real-group))
551 (push group gnus-killed-list)
552 (gnus-sethash group group gnus-killed-hashtb)
553 (setq groups (cdr groups)))
554 (setq starts (cdr starts)))
555 ((= ans ?s)
556 (while (and groups
557 (setq group (car groups)
558 real-group (gnus-group-real-name group))
559 (string-match prefix real-group))
560 (gnus-sethash group group gnus-killed-hashtb)
561 (gnus-subscribe-alphabetically (car groups))
562 (setq groups (cdr groups)))
563 (setq starts (cdr starts)))
564 ((= ans ?q)
565 (while groups
566 (setq group (car groups))
567 (push group gnus-killed-list)
568 (gnus-sethash group group gnus-killed-hashtb)
569 (setq groups (cdr groups))))
570 (t nil)))
571 (message "Subscribe %s? ([n]yq)" (car groups))
572 (while (not (memq (setq ans (read-char-exclusive))
573 '(?y ?\n ?\r ?q ?n)))
574 (ding)
575 (message "Subscribe %s? ([n]yq)" (car groups)))
576 (setq group (car groups))
577 (cond ((= ans ?y)
578 (gnus-subscribe-alphabetically (car groups))
579 (gnus-sethash group group gnus-killed-hashtb))
580 ((= ans ?q)
581 (while groups
582 (setq group (car groups))
583 (push group gnus-killed-list)
584 (gnus-sethash group group gnus-killed-hashtb)
585 (setq groups (cdr groups))))
587 (push group gnus-killed-list)
588 (gnus-sethash group group gnus-killed-hashtb)))
589 (setq groups (cdr groups)))))))
591 (defun gnus-subscribe-randomly (newsgroup)
592 "Subscribe new NEWSGROUP by making it the first newsgroup."
593 (gnus-subscribe-newsgroup newsgroup))
595 (defun gnus-subscribe-alphabetically (newgroup)
596 "Subscribe new NEWGROUP and insert it in alphabetical order."
597 (let ((groups (cdr gnus-newsrc-alist))
598 before)
599 (while (and (not before) groups)
600 (if (string< newgroup (caar groups))
601 (setq before (caar groups))
602 (setq groups (cdr groups))))
603 (gnus-subscribe-newsgroup newgroup before)))
605 (defun gnus-subscribe-hierarchically (newgroup)
606 "Subscribe new NEWGROUP and insert it in hierarchical newsgroup order."
607 ;; Basic ideas by mike-w@cs.aukuni.ac.nz (Mike Williams)
608 (with-current-buffer (nnheader-find-file-noselect gnus-current-startup-file)
609 (prog1
610 (let ((groupkey newgroup) before)
611 (while (and (not before) groupkey)
612 (goto-char (point-min))
613 (let ((groupkey-re
614 (concat "^\\(" (regexp-quote groupkey) ".*\\)[!:]")))
615 (while (and (re-search-forward groupkey-re nil t)
616 (progn
617 (setq before (match-string 1))
618 (string< before newgroup)))))
619 ;; Remove tail of newsgroup name (eg. a.b.c -> a.b)
620 (setq groupkey
621 (when (string-match "^\\(.*\\)\\.[^.]+$" groupkey)
622 (substring groupkey (match-beginning 1) (match-end 1)))))
623 (gnus-subscribe-newsgroup newgroup before))
624 (kill-buffer (current-buffer)))))
626 (defun gnus-subscribe-interactively (group)
627 "Subscribe the new GROUP interactively.
628 It is inserted in hierarchical newsgroup order if subscribed. If not,
629 it is killed."
630 (if (gnus-y-or-n-p (format "Subscribe new newsgroup %s? " group))
631 (gnus-subscribe-hierarchically group)
632 (push group gnus-killed-list)))
634 (defun gnus-subscribe-zombies (group)
635 "Make the new GROUP into a zombie group."
636 (push group gnus-zombie-list))
638 (defun gnus-subscribe-killed (group)
639 "Make the new GROUP a killed group."
640 (push group gnus-killed-list))
642 (defun gnus-subscribe-newsgroup (newsgroup &optional next)
643 "Subscribe new NEWSGROUP.
644 If NEXT is non-nil, it is inserted before NEXT. Otherwise it is made
645 the first newsgroup."
646 (save-excursion
647 (goto-char (point-min))
648 ;; We subscribe the group by changing its level to `subscribed'.
649 (gnus-group-change-level
650 newsgroup gnus-level-default-subscribed
651 gnus-level-killed (gnus-group-entry (or next "dummy.group")))
652 (gnus-request-update-group-status newsgroup 'subscribe)
653 (gnus-message 5 "Subscribe newsgroup: %s" newsgroup)
654 (run-hook-with-args 'gnus-subscribe-newsgroup-functions newsgroup)
657 (defun gnus-read-active-file-p ()
658 "Say whether the active file has been read from `gnus-select-method'."
659 (memq gnus-select-method gnus-have-read-active-file))
661 ;;; General various misc type functions.
663 ;; Silence byte-compiler.
664 (defvar gnus-current-headers)
665 (defvar gnus-thread-indent-array)
666 (defvar gnus-newsgroup-name)
667 (defvar gnus-newsgroup-headers)
668 (defvar gnus-group-list-mode)
669 (defvar gnus-group-mark-positions)
670 (defvar gnus-newsgroup-data)
671 (defvar gnus-newsgroup-unreads)
672 (defvar nnoo-state-alist)
673 (defvar gnus-current-select-method)
674 (defvar mail-sources)
675 (defvar nnmail-scan-directory-mail-source-once)
676 (defvar nnmail-split-history)
677 (defvar nnmail-spool-file)
679 (defun gnus-close-all-servers ()
680 "Close all servers."
681 (interactive)
682 (dolist (server gnus-opened-servers)
683 (gnus-close-server (car server))))
685 (defun gnus-clear-system ()
686 "Clear all variables and buffers."
687 ;; Clear Gnus variables.
688 (let ((variables (remove 'gnus-format-specs gnus-variable-list)))
689 (while variables
690 (set (car variables) nil)
691 (setq variables (cdr variables))))
692 ;; Clear other internal variables.
693 (setq gnus-list-of-killed-groups nil
694 gnus-have-read-active-file nil
695 gnus-agent-covered-methods nil
696 gnus-agent-file-loading-local nil
697 gnus-agent-file-loading-cache nil
698 gnus-server-method-cache nil
699 gnus-newsrc-alist nil
700 gnus-newsrc-hashtb nil
701 gnus-killed-list nil
702 gnus-zombie-list nil
703 gnus-killed-hashtb nil
704 gnus-active-hashtb nil
705 gnus-moderated-hashtb nil
706 gnus-description-hashtb nil
707 gnus-current-headers nil
708 gnus-thread-indent-array nil
709 gnus-newsgroup-headers nil
710 gnus-newsgroup-name nil
711 gnus-server-alist nil
712 gnus-group-list-mode nil
713 gnus-opened-servers nil
714 gnus-group-mark-positions nil
715 gnus-newsgroup-data nil
716 gnus-newsgroup-unreads nil
717 nnoo-state-alist nil
718 gnus-current-select-method nil
719 nnmail-split-history nil
720 gnus-extended-servers nil
721 gnus-ephemeral-servers nil)
722 (gnus-shutdown 'gnus)
723 ;; Kill the startup file.
724 (and gnus-current-startup-file
725 (get-file-buffer gnus-current-startup-file)
726 (kill-buffer (get-file-buffer gnus-current-startup-file)))
727 ;; Clear the dribble buffer.
728 (gnus-dribble-clear)
729 ;; Kill global KILL file buffer.
730 (when (get-file-buffer (gnus-newsgroup-kill-file nil))
731 (kill-buffer (get-file-buffer (gnus-newsgroup-kill-file nil))))
732 (gnus-kill-buffer nntp-server-buffer)
733 ;; Kill Gnus buffers.
734 (do-auto-save t)
735 (dolist (buffer (gnus-buffers))
736 (when (gnus-buffer-exists-p buffer)
737 (with-current-buffer buffer
738 (set-buffer-modified-p nil)
739 (when (local-variable-p 'kill-buffer-hook)
740 (setq kill-buffer-hook nil))))
741 (gnus-kill-buffer buffer))
742 ;; Remove Gnus frames.
743 (gnus-kill-gnus-frames))
745 (defun gnus-no-server-1 (&optional arg slave)
746 "Read network news.
747 If ARG is a positive number, Gnus will use that as the startup
748 level. If ARG is nil, Gnus will be started at level 2
749 \(`gnus-level-default-subscribed' minus one). If ARG is non-nil
750 and not a positive number, Gnus will prompt the user for the name
751 of an NNTP server to use. As opposed to \\[gnus], this command
752 will not connect to the local server."
753 (interactive "P")
754 (let ((val (or arg (1- gnus-level-default-subscribed))))
755 (gnus val t slave)
756 (make-local-variable 'gnus-group-use-permanent-levels)
757 (setq gnus-group-use-permanent-levels val)))
759 (defun gnus-1 (&optional arg dont-connect slave)
760 "Read network news.
761 If ARG is non-nil and a positive number, Gnus will use that as the
762 startup level. If ARG is non-nil and not a positive number, Gnus will
763 prompt the user for the name of an NNTP server to use."
764 (interactive "P")
766 (if (gnus-alive-p)
767 (progn
768 (gnus-run-hooks 'gnus-before-resume-hook)
769 (switch-to-buffer gnus-group-buffer)
770 (gnus-group-get-new-news
771 (and (numberp arg)
772 (> arg 0)
773 (max (car gnus-group-list-mode) arg))))
775 (gnus-clear-system)
776 (gnus-splash)
777 (gnus-run-hooks 'gnus-before-startup-hook)
778 (nnheader-init-server-buffer)
779 (setq gnus-slave slave)
780 (gnus-read-init-file)
782 ;; Add "native" to gnus-predefined-server-alist just to have a
783 ;; name for the native select method.
784 (when gnus-select-method
785 (add-to-list 'gnus-predefined-server-alist
786 (cons "native" gnus-select-method)))
788 (if gnus-agent
789 (gnus-agentize))
791 (let ((level (and (numberp arg) (> arg 0) arg))
792 did-connect)
793 (unwind-protect
794 (progn
795 (unless dont-connect
796 (setq did-connect
797 (gnus-start-news-server (and arg (not level))))))
798 (if (and (not dont-connect)
799 (not did-connect))
800 ;; Couldn't connect to the server, so bail out.
801 (gnus-group-quit)
802 (gnus-run-hooks 'gnus-startup-hook)
803 ;; Find the current startup file name.
804 (setq gnus-current-startup-file
805 (gnus-make-newsrc-file gnus-startup-file))
807 ;; Read the dribble file.
808 (when (or gnus-slave gnus-use-dribble-file)
809 (gnus-dribble-read-file))
811 ;; Do the actual startup.
812 (gnus-setup-news nil level dont-connect)
813 (gnus-run-hooks 'gnus-setup-news-hook)
814 (when gnus-agent
815 (gnus-request-create-group "queue" '(nndraft "")))
816 (gnus-start-draft-setup)
817 ;; Generate the group buffer.
818 (gnus-group-list-groups level)
819 (gnus-group-first-unread-group)
820 (gnus-configure-windows 'group)
821 (gnus-group-set-mode-line)
822 (gnus-run-hooks 'gnus-started-hook))))))
824 (defun gnus-start-draft-setup ()
825 "Make sure the draft group exists."
826 (interactive)
827 (gnus-request-create-group "drafts" '(nndraft ""))
828 (unless (gnus-group-entry "nndraft:drafts")
829 (let ((gnus-level-default-subscribed 1))
830 (gnus-subscribe-group "nndraft:drafts" nil '(nndraft "")))
831 (setcar (gnus-group-entry "nndraft:drafts") 0))
832 (unless (equal (gnus-group-get-parameter "nndraft:drafts" 'gnus-dummy t)
833 '((gnus-draft-mode)))
834 (gnus-group-set-parameter
835 "nndraft:drafts" 'gnus-dummy '((gnus-draft-mode)))))
839 ;;; Dribble file
842 (defvar gnus-dribble-ignore nil)
843 (defvar gnus-dribble-eval-file nil)
845 (defun gnus-dribble-file-name ()
846 "Return the dribble file for the current .newsrc."
847 (concat
848 (if gnus-dribble-directory
849 (concat (file-name-as-directory gnus-dribble-directory)
850 (file-name-nondirectory gnus-current-startup-file))
851 gnus-current-startup-file)
852 "-dribble"))
854 (defun gnus-dribble-enter (string &optional regexp)
855 "Enter STRING into the dribble buffer.
856 If REGEXP is given, lines that match it will be deleted."
857 (when (and (not gnus-dribble-ignore)
858 gnus-dribble-buffer
859 (buffer-name gnus-dribble-buffer))
860 (let ((obuf (current-buffer)))
861 (set-buffer gnus-dribble-buffer)
862 (when regexp
863 (goto-char (point-min))
864 (let (end)
865 (while (re-search-forward regexp nil t)
866 (unless (bolp) (forward-line 1))
867 (setq end (point))
868 (goto-char (match-beginning 0))
869 (delete-region (point-at-bol) end))))
870 (goto-char (point-max))
871 ;; Make sure that each dribble entry is a single line, so that
872 ;; the "remove" code above works.
873 (insert (replace-regexp-in-string "\n" "\\\\n" string) "\n")
874 (bury-buffer gnus-dribble-buffer)
875 (with-current-buffer gnus-group-buffer
876 (gnus-group-set-mode-line))
877 (set-buffer obuf))))
879 (defun gnus-dribble-touch ()
880 "Touch the dribble buffer."
881 (gnus-dribble-enter ""))
883 (defun gnus-dribble-read-file ()
884 "Read the dribble file from disk."
885 (let ((dribble-file (gnus-dribble-file-name)))
886 (unless (file-exists-p (file-name-directory dribble-file))
887 (make-directory (file-name-directory dribble-file) t))
888 (with-current-buffer (setq gnus-dribble-buffer
889 (gnus-get-buffer-create
890 (file-name-nondirectory dribble-file)))
891 (set (make-local-variable 'file-precious-flag) t)
892 (setq buffer-save-without-query t)
893 (erase-buffer)
894 (setq buffer-file-name dribble-file)
895 ;; The buffer may be shrunk a lot when deleting old entries.
896 ;; It caused the auto-saving to stop.
897 (set (make-local-variable 'auto-save-include-big-deletions) t)
898 (auto-save-mode t)
899 (buffer-disable-undo)
900 (bury-buffer (current-buffer))
901 (set-buffer-modified-p nil)
902 (let ((auto (make-auto-save-file-name))
903 (gnus-dribble-ignore t)
904 (purpose nil)
905 modes)
906 (when (or (file-exists-p auto) (file-exists-p dribble-file))
907 ;; Load whichever file is newest -- the auto save file
908 ;; or the "real" file.
909 (if (file-newer-than-file-p auto dribble-file)
910 (nnheader-insert-file-contents auto)
911 (nnheader-insert-file-contents dribble-file))
912 (unless (zerop (buffer-size))
913 (set-buffer-modified-p t))
914 ;; Set the file modes to reflect the .newsrc file modes.
915 (save-buffer)
916 (when (and (file-exists-p gnus-current-startup-file)
917 (file-exists-p dribble-file)
918 (setq modes (file-modes gnus-current-startup-file)))
919 (gnus-set-file-modes dribble-file modes))
920 (goto-char (point-min))
921 (when (search-forward "Gnus was exited on purpose" nil t)
922 (setq purpose t))
923 ;; Possibly eval the file later.
924 (when (or gnus-always-read-dribble-file
925 (gnus-y-or-n-p
926 (if purpose
927 "Gnus exited on purpose without saving; read auto-save file anyway? "
928 "Gnus auto-save file exists. Do you want to read it? ")))
929 (setq gnus-dribble-eval-file t)))))))
931 (defun gnus-dribble-eval-file ()
932 (when gnus-dribble-eval-file
933 (setq gnus-dribble-eval-file nil)
934 (save-excursion
935 (let ((gnus-dribble-ignore t))
936 (set-buffer gnus-dribble-buffer)
937 (eval-buffer (current-buffer))))))
939 (defun gnus-dribble-delete-file ()
940 (when (file-exists-p (gnus-dribble-file-name))
941 (delete-file (gnus-dribble-file-name)))
942 (when gnus-dribble-buffer
943 (with-current-buffer gnus-dribble-buffer
944 (let ((auto (make-auto-save-file-name)))
945 (when (file-exists-p auto)
946 (delete-file auto))
947 (erase-buffer)
948 (set-buffer-modified-p nil)))))
950 (defun gnus-dribble-save ()
951 (when (and gnus-dribble-buffer
952 (buffer-name gnus-dribble-buffer))
953 (with-current-buffer gnus-dribble-buffer
954 (when (> (buffer-size) 0)
955 (save-buffer)))))
957 (defun gnus-dribble-clear ()
958 (when (gnus-buffer-exists-p gnus-dribble-buffer)
959 (with-current-buffer gnus-dribble-buffer
960 (erase-buffer)
961 (set-buffer-modified-p nil)
962 (setq buffer-saved-size (buffer-size)))))
966 ;;; Active & Newsrc File Handling
969 (defun gnus-setup-news (&optional rawfile level dont-connect)
970 "Setup news information.
971 If RAWFILE is non-nil, the .newsrc file will also be read.
972 If LEVEL is non-nil, the news will be set up at level LEVEL."
973 (require 'nnmail)
974 (let ((init (not (and gnus-newsrc-alist gnus-active-hashtb (not rawfile))))
975 ;; Binding this variable will inhibit multiple fetchings
976 ;; of the same mail source.
977 (nnmail-fetched-sources (list t)))
979 (when init
980 ;; Clear some variables to re-initialize news information.
981 (setq gnus-newsrc-alist nil
982 gnus-active-hashtb nil)
983 ;; Read the newsrc file and create `gnus-newsrc-hashtb'.
984 (gnus-read-newsrc-file rawfile))
986 ;; Make sure the archive server is available to all and sundry.
987 (let ((method (or (and (stringp gnus-message-archive-method)
988 (gnus-server-to-method
989 gnus-message-archive-method))
990 gnus-message-archive-method)))
991 ;; Check whether the archive method is writable.
992 (unless (or (not method)
993 (stringp method)
994 (memq 'respool (assoc (format "%s" (car method))
995 gnus-valid-select-methods)))
996 (setq method "archive")) ;; The default.
997 (when (stringp method)
998 (setq method `(nnfolder
999 ,method
1000 (nnfolder-directory
1001 ,(nnheader-concat message-directory method))
1002 (nnfolder-active-file
1003 ,(nnheader-concat message-directory
1004 (concat method "/active")))
1005 (nnfolder-get-new-mail nil)
1006 (nnfolder-inhibit-expiry t))))
1007 (if (assoc "archive" gnus-server-alist)
1008 (when gnus-update-message-archive-method
1009 (if method
1010 (setcdr (assoc "archive" gnus-server-alist) method)
1011 (setq gnus-server-alist (delq (assoc "archive" gnus-server-alist)
1012 gnus-server-alist))))
1013 (when method
1014 (push (cons "archive" method) gnus-server-alist))))
1016 ;; If we don't read the complete active file, we fill in the
1017 ;; hashtb here.
1018 (when (or (null gnus-read-active-file)
1019 (eq gnus-read-active-file 'some))
1020 (gnus-update-active-hashtb-from-killed))
1021 (unless gnus-active-hashtb
1022 (setq gnus-active-hashtb (gnus-make-hashtable 4096)))
1023 ;; Initialize the cache.
1024 (when gnus-use-cache
1025 (gnus-cache-open))
1027 ;; Possibly eval the dribble file.
1028 (and init
1029 (or gnus-use-dribble-file gnus-slave)
1030 (gnus-dribble-eval-file))
1032 ;; Slave Gnusii should then clear the dribble buffer.
1033 (when (and init gnus-slave)
1034 (gnus-dribble-clear))
1036 (gnus-update-format-specifications)
1038 ;; See whether we need to read the description file.
1039 (when (and (boundp 'gnus-group-line-format)
1040 (stringp gnus-group-line-format)
1041 (let ((case-fold-search nil))
1042 (string-match "%[-,0-9]*D" gnus-group-line-format))
1043 (not gnus-description-hashtb)
1044 (not dont-connect)
1045 gnus-read-active-file)
1046 (gnus-read-all-descriptions-files))
1048 ;; Find new newsgroups and treat them.
1049 (when (and init gnus-check-new-newsgroups (not level)
1050 (gnus-check-server gnus-select-method)
1051 (not gnus-slave)
1052 gnus-plugged)
1053 (gnus-find-new-newsgroups))
1055 ;; Check and remove bogus newsgroups.
1056 (when (and init gnus-check-bogus-newsgroups
1057 gnus-read-active-file (not level)
1058 (gnus-server-opened gnus-select-method))
1059 (gnus-check-bogus-newsgroups))
1061 ;; Read any slave files.
1062 (gnus-master-read-slave-newsrc)
1064 ;; Find the number of unread articles in each non-dead group.
1065 (let ((gnus-read-active-file (and (not level) gnus-read-active-file)))
1066 (gnus-get-unread-articles level dont-connect))))
1068 (defun gnus-call-subscribe-functions (method group)
1069 "Call METHOD to subscribe GROUP.
1070 If no function returns `non-nil', call `gnus-subscribe-zombies'."
1071 (unless (cond
1072 ((functionp method)
1073 (funcall method group))
1074 ((listp method)
1075 (catch 'found
1076 (dolist (func method)
1077 (if (funcall func group)
1078 (throw 'found t)))
1079 nil))
1080 (t nil))
1081 (gnus-subscribe-zombies group)))
1083 (defun gnus-find-new-newsgroups (&optional arg)
1084 "Search for new newsgroups and add them.
1085 Each new newsgroup will be treated with `gnus-subscribe-newsgroup-method'.
1086 The `-n' option line from .newsrc is respected.
1088 With 1 C-u, use the `ask-server' method to query the server for new
1089 groups.
1090 With 2 C-u's, use most complete method possible to query the server
1091 for new groups, and subscribe the new groups as zombies."
1092 (interactive "p")
1093 (let* ((gnus-subscribe-newsgroup-method
1094 gnus-subscribe-newsgroup-method)
1095 (check (cond
1096 ((or (and (= (or arg 1) 4)
1097 (not (listp gnus-check-new-newsgroups)))
1098 (null gnus-read-active-file)
1099 (eq gnus-read-active-file 'some))
1100 'ask-server)
1101 ((= (or arg 1) 16)
1102 (setq gnus-subscribe-newsgroup-method
1103 'gnus-subscribe-zombies)
1105 (t gnus-check-new-newsgroups))))
1106 (if (or (consp check)
1107 (eq check 'ask-server))
1108 ;; Ask the server for new groups.
1109 (gnus-ask-server-for-new-groups)
1110 ;; Go through the active hashtb and look for new groups.
1111 (let ((groups 0)
1112 group new-newsgroups)
1113 (gnus-message 5 "Looking for new newsgroups...")
1114 (unless gnus-have-read-active-file
1115 (gnus-read-active-file))
1116 (setq gnus-newsrc-last-checked-date (message-make-date))
1117 (unless gnus-killed-hashtb
1118 (gnus-make-hashtable-from-killed))
1119 ;; Go though every newsgroup in `gnus-active-hashtb' and compare
1120 ;; with `gnus-newsrc-hashtb' and `gnus-killed-hashtb'.
1121 (mapatoms
1122 (lambda (sym)
1123 (if (or (null (setq group (symbol-name sym)))
1124 (not (boundp sym))
1125 (null (symbol-value sym))
1126 (gnus-gethash group gnus-killed-hashtb)
1127 (gnus-gethash group gnus-newsrc-hashtb))
1129 (let ((do-sub (gnus-matches-options-n group)))
1130 (cond
1131 ((eq do-sub 'subscribe)
1132 (setq groups (1+ groups))
1133 (gnus-sethash group group gnus-killed-hashtb)
1134 (gnus-call-subscribe-functions
1135 gnus-subscribe-options-newsgroup-method group))
1136 ((eq do-sub 'ignore)
1137 nil)
1139 (setq groups (1+ groups))
1140 (gnus-sethash group group gnus-killed-hashtb)
1141 (if gnus-subscribe-hierarchical-interactive
1142 (push group new-newsgroups)
1143 (gnus-call-subscribe-functions
1144 gnus-subscribe-newsgroup-method group)))))))
1145 gnus-active-hashtb)
1146 (when new-newsgroups
1147 (gnus-subscribe-hierarchical-interactive new-newsgroups))
1148 (if (> groups 0)
1149 (gnus-message 5 "%d new newsgroup%s arrived."
1150 groups (if (> groups 1) "s have" " has"))
1151 (gnus-message 5 "No new newsgroups."))
1152 groups))))
1154 (defun gnus-matches-options-n (group)
1155 ;; Returns `subscribe' if the group is to be unconditionally
1156 ;; subscribed, `ignore' if it is to be ignored, and nil if there is
1157 ;; no match for the group.
1159 ;; First we check the two user variables.
1160 (cond
1161 ((and gnus-options-subscribe
1162 (string-match gnus-options-subscribe group))
1163 'subscribe)
1164 ((let ((do-subscribe nil))
1165 (dolist (category gnus-auto-subscribed-categories)
1166 (when (gnus-member-of-valid category group)
1167 (setq do-subscribe t)))
1168 do-subscribe)
1169 'subscribe)
1170 ((and gnus-auto-subscribed-groups
1171 (string-match gnus-auto-subscribed-groups group))
1172 'subscribe)
1173 ((and gnus-options-not-subscribe
1174 (string-match gnus-options-not-subscribe group))
1175 'ignore)
1176 ;; Then we go through the list that was retrieved from the .newsrc
1177 ;; file. This list has elements on the form
1178 ;; `(REGEXP . {ignore,subscribe})'. The first match found (the list
1179 ;; is in the reverse order of the options line) is returned.
1181 (let ((regs gnus-newsrc-options-n))
1182 (while (and regs
1183 (not (string-match (caar regs) group)))
1184 (setq regs (cdr regs)))
1185 (and regs (cdar regs))))))
1187 (defun gnus-ask-server-for-new-groups ()
1188 (let* ((new-date (message-make-date))
1189 (date (or gnus-newsrc-last-checked-date new-date))
1190 (methods (cons gnus-select-method
1191 (nconc
1192 (when (gnus-archive-server-wanted-p)
1193 (list "archive"))
1194 (append
1195 (and (consp gnus-check-new-newsgroups)
1196 gnus-check-new-newsgroups)
1197 gnus-secondary-select-methods))))
1198 (groups 0)
1199 group new-newsgroups got-new method hashtb
1200 gnus-override-subscribe-method)
1201 (unless gnus-killed-hashtb
1202 (gnus-make-hashtable-from-killed))
1203 ;; Go through both primary and secondary select methods and
1204 ;; request new newsgroups.
1205 (while (setq method (gnus-server-get-method nil (pop methods)))
1206 (setq new-newsgroups nil
1207 gnus-override-subscribe-method method)
1208 (when (and (gnus-check-server method)
1209 (gnus-request-newgroups date method))
1210 (save-excursion
1211 (setq got-new t
1212 hashtb (gnus-make-hashtable 100))
1213 (set-buffer nntp-server-buffer)
1214 ;; Enter all the new groups into a hashtable.
1215 (gnus-active-to-gnus-format method hashtb 'ignore))
1216 ;; Now all new groups from `method' are in `hashtb'.
1217 (mapatoms
1218 (lambda (group-sym)
1219 (if (or (null (setq group (symbol-name group-sym)))
1220 (not (boundp group-sym))
1221 (null (symbol-value group-sym))
1222 (gnus-gethash group gnus-newsrc-hashtb)
1223 (member group gnus-zombie-list)
1224 (member group gnus-killed-list))
1225 ;; The group is already known.
1227 ;; Make this group active.
1228 (when (symbol-value group-sym)
1229 (gnus-set-active group (symbol-value group-sym)))
1230 ;; Check whether we want it or not.
1231 (let ((do-sub (gnus-matches-options-n group)))
1232 (cond
1233 ((eq do-sub 'subscribe)
1234 (incf groups)
1235 (gnus-sethash group group gnus-killed-hashtb)
1236 (gnus-call-subscribe-functions
1237 gnus-subscribe-options-newsgroup-method group))
1238 ((eq do-sub 'ignore)
1239 nil)
1241 (incf groups)
1242 (gnus-sethash group group gnus-killed-hashtb)
1243 (if gnus-subscribe-hierarchical-interactive
1244 (push group new-newsgroups)
1245 (gnus-call-subscribe-functions
1246 gnus-subscribe-newsgroup-method group)))))))
1247 hashtb))
1248 (when new-newsgroups
1249 (gnus-subscribe-hierarchical-interactive new-newsgroups)))
1250 (if (> groups 0)
1251 (gnus-message 5 "%d new newsgroup%s arrived"
1252 groups (if (> groups 1) "s have" " has"))
1253 (gnus-message 5 "No new newsgroups"))
1254 (when got-new
1255 (setq gnus-newsrc-last-checked-date new-date))
1256 new-newsgroups))
1258 (defun gnus-subscribe-group (group &optional previous method)
1259 "Subscribe GROUP and put it after PREVIOUS."
1260 (gnus-group-change-level
1261 (if method
1262 (list t group gnus-level-default-subscribed nil nil method)
1263 group)
1264 gnus-level-default-subscribed gnus-level-killed previous t)
1267 ;; `gnus-group-change-level' is the fundamental function for changing
1268 ;; subscription levels of newsgroups. This might mean just changing
1269 ;; from level 1 to 2, which is pretty trivial, from 2 to 6 or back
1270 ;; again, which subscribes/unsubscribes a group, which is equally
1271 ;; trivial. Changing from 1-7 to 8-9 means that you kill a group, and
1272 ;; from 8-9 to 1-7 means that you remove the group from the list of
1273 ;; killed (or zombie) groups and add them to the (kinda) subscribed
1274 ;; groups. And last but not least, moving from 8 to 9 and 9 to 8,
1275 ;; which is trivial.
1276 ;; ENTRY can either be a string (newsgroup name) or a list (if
1277 ;; FROMKILLED is t, it's a list on the format (NUM INFO-LIST),
1278 ;; otherwise it's a list in the format of the `gnus-newsrc-hashtb'
1279 ;; entries.
1280 ;; LEVEL is the new level of the group, OLDLEVEL is the old level and
1281 ;; PREVIOUS is the group (in hashtb entry format) to insert this group
1282 ;; after.
1283 (defun gnus-group-change-level (entry level &optional oldlevel
1284 previous fromkilled)
1285 (let (group info active num)
1286 ;; Glean what info we can from the arguments
1287 (if (consp entry)
1288 (if fromkilled (setq group (nth 1 entry))
1289 (setq group (car (nth 2 entry))))
1290 (setq group entry))
1291 (when (and (stringp entry)
1292 oldlevel
1293 (< oldlevel gnus-level-zombie))
1294 (setq entry (gnus-group-entry entry)))
1295 (if (and (not oldlevel)
1296 (consp entry))
1297 (setq oldlevel (gnus-info-level (nth 2 entry)))
1298 (setq oldlevel (or oldlevel gnus-level-killed)))
1299 (when (stringp previous)
1300 (setq previous (gnus-group-entry previous)))
1302 (if (and (>= oldlevel gnus-level-zombie)
1303 (gnus-group-entry group))
1304 ;; We are trying to subscribe a group that is already
1305 ;; subscribed.
1306 () ; Do nothing.
1308 (unless (gnus-ephemeral-group-p group)
1309 (gnus-dribble-enter
1310 (format "(gnus-group-change-level %S %S %S %S %S)"
1311 group level oldlevel (car (nth 2 previous)) fromkilled)))
1313 ;; Then we remove the newgroup from any old structures, if needed.
1314 ;; If the group was killed, we remove it from the killed or zombie
1315 ;; list. If not, and it is in fact going to be killed, we remove
1316 ;; it from the newsrc hash table and assoc.
1317 (cond
1318 ((>= oldlevel gnus-level-zombie)
1319 ;; oldlevel could be wrong.
1320 (setq gnus-zombie-list (delete group gnus-zombie-list))
1321 (setq gnus-killed-list (delete group gnus-killed-list)))
1323 (when (and (>= level gnus-level-zombie)
1324 entry)
1325 (gnus-sethash (car (nth 2 entry)) nil gnus-newsrc-hashtb)
1326 (when (nth 3 entry)
1327 (setcdr (gnus-group-entry (car (nth 3 entry)))
1328 (cdr entry)))
1329 (setcdr (cdr entry) (cdddr entry)))))
1331 ;; Finally we enter (if needed) the list where it is supposed to
1332 ;; go, and change the subscription level. If it is to be killed,
1333 ;; we enter it into the killed or zombie list.
1334 (cond
1335 ((>= level gnus-level-zombie)
1336 ;; Remove from the hash table.
1337 (gnus-sethash group nil gnus-newsrc-hashtb)
1338 (if (= level gnus-level-zombie)
1339 (push group gnus-zombie-list)
1340 (if (= oldlevel gnus-level-killed)
1341 ;; Remove from active hashtb.
1342 (unintern group gnus-active-hashtb)
1343 ;; Don't add it into killed-list if it was killed.
1344 (push group gnus-killed-list))))
1346 ;; If the list is to be entered into the newsrc assoc, and
1347 ;; it was killed, we have to create an entry in the newsrc
1348 ;; hashtb format and fix the pointers in the newsrc assoc.
1349 (if (< oldlevel gnus-level-zombie)
1350 ;; It was alive, and it is going to stay alive, so we
1351 ;; just change the level and don't change any pointers or
1352 ;; hash table entries.
1353 (setcar (cdaddr entry) level)
1354 (if (listp entry)
1355 (setq info (cdr entry)
1356 num (car entry))
1357 (setq active (gnus-active group))
1358 (setq num
1359 (if active (- (1+ (cdr active)) (car active)) t))
1360 ;; Shorten the select method if possible, if we need to
1361 ;; store it at all (native groups).
1362 (let ((method (gnus-method-simplify
1363 (or gnus-override-subscribe-method
1364 (gnus-group-method group)))))
1365 (if method
1366 (setq info (list group level nil nil method))
1367 (setq info (list group level nil)))))
1368 (unless previous
1369 (setq previous
1370 (let ((p gnus-newsrc-alist))
1371 (while (cddr p)
1372 (setq p (cdr p)))
1373 p)))
1374 (setq entry (cons info (cddr previous)))
1375 (if (cdr previous)
1376 (progn
1377 (setcdr (cdr previous) entry)
1378 (gnus-sethash group (cons num (cdr previous))
1379 gnus-newsrc-hashtb))
1380 (setcdr previous entry)
1381 (gnus-sethash group (cons num previous)
1382 gnus-newsrc-hashtb))
1383 (when (cdr entry)
1384 (setcdr (gnus-group-entry (caadr entry)) entry))
1385 (gnus-dribble-enter
1386 (format "(gnus-group-set-info '%S)" info)
1387 (concat "^(gnus-group-set-info '(\"" (regexp-quote group) "\"")))))
1388 (when gnus-group-change-level-function
1389 (funcall gnus-group-change-level-function
1390 group level oldlevel previous)))))
1392 (defun gnus-check-bogus-newsgroups (&optional confirm)
1393 "Remove bogus newsgroups.
1394 If CONFIRM is non-nil, the user has to confirm the deletion of every
1395 newsgroup."
1396 (let ((newsrc (cdr gnus-newsrc-alist))
1397 bogus group entry info)
1398 (gnus-message 5 "Checking bogus newsgroups...")
1399 (unless (gnus-read-active-file-p)
1400 (gnus-read-active-file t))
1401 (when (gnus-read-active-file-p)
1402 ;; Find all bogus newsgroup that are subscribed.
1403 (while newsrc
1404 (setq info (pop newsrc)
1405 group (gnus-info-group info))
1406 (unless (or (gnus-active group) ; Active
1407 (and (gnus-info-method info)
1408 (not (gnus-secondary-method-p
1409 (gnus-info-method info))))) ; Foreign
1410 ;; Found a bogus newsgroup.
1411 (push group bogus)))
1412 (if confirm
1413 (map-y-or-n-p
1414 (format "Remove bogus group %%s (of %d groups)? " (length bogus))
1415 (lambda (group)
1416 ;; Remove all bogus subscribed groups by first killing them, and
1417 ;; then removing them from the list of killed groups.
1418 (when (setq entry (gnus-group-entry group))
1419 (gnus-group-change-level entry gnus-level-killed)
1420 (setq gnus-killed-list (delete group gnus-killed-list))))
1421 bogus '("group" "groups" "remove"))
1422 (while (setq group (pop bogus))
1423 ;; Remove all bogus subscribed groups by first killing them, and
1424 ;; then removing them from the list of killed groups.
1425 (when (setq entry (gnus-group-entry group))
1426 (gnus-group-change-level entry gnus-level-killed)
1427 (setq gnus-killed-list (delete group gnus-killed-list)))))
1428 ;; Then we remove all bogus groups from the list of killed and
1429 ;; zombie groups. They are removed without confirmation.
1430 (let ((dead-lists '(gnus-killed-list gnus-zombie-list))
1431 killed)
1432 (while dead-lists
1433 (setq killed (symbol-value (car dead-lists)))
1434 (while killed
1435 (unless (gnus-active (setq group (pop killed)))
1436 ;; The group is bogus.
1437 ;; !!!Slow as hell.
1438 (set (car dead-lists)
1439 (delete group (symbol-value (car dead-lists))))))
1440 (setq dead-lists (cdr dead-lists))))
1441 (gnus-run-hooks 'gnus-check-bogus-groups-hook)
1442 (gnus-message 5 "Checking bogus newsgroups...done"))))
1444 (defun gnus-check-duplicate-killed-groups ()
1445 "Remove duplicates from the list of killed groups."
1446 (interactive)
1447 (let ((killed gnus-killed-list))
1448 (while killed
1449 (gnus-message 9 "%d" (length killed))
1450 (setcdr killed (delete (car killed) (cdr killed)))
1451 (setq killed (cdr killed)))))
1453 ;; We want to inline a function from gnus-cache, so we cheat here:
1454 (defvar gnus-cache-active-hashtb)
1455 (eval-when-compile
1456 (defun gnus-cache-possibly-alter-active (group active)
1457 "Alter the ACTIVE info for GROUP to reflect the articles in the cache."
1458 (when gnus-cache-active-hashtb
1459 (let ((cache-active (gnus-gethash group gnus-cache-active-hashtb)))
1460 (when cache-active
1461 (when (< (car cache-active) (car active))
1462 (setcar active (car cache-active)))
1463 (when (> (cdr cache-active) (cdr active))
1464 (setcdr active (cdr cache-active))))))))
1466 (defun gnus-activate-group (group &optional scan dont-check method
1467 dont-sub-check)
1468 "Check whether a group has been activated or not.
1469 If SCAN, request a scan of that group as well. If METHOD, use
1470 that select method instead of determining the method based on the
1471 group name. If DONT-CHECK, don't check whether the group
1472 actually exists. If DONT-SUB-CHECK or DONT-CHECK, don't let the
1473 backend check whether the group actually exists."
1474 (let ((method (or method (inline (gnus-find-method-for-group group))))
1475 active)
1476 (and (inline (gnus-check-server method))
1477 ;; We escape all bugs and quit here to make it possible to
1478 ;; continue if a group is so out-there that it reports bugs
1479 ;; and stuff.
1480 (progn
1481 (and scan
1482 (gnus-check-backend-function 'request-scan (car method))
1483 (gnus-request-scan group method))
1485 (if (or debug-on-error debug-on-quit)
1486 (inline (gnus-request-group group (or dont-sub-check dont-check)
1487 method
1488 (gnus-get-info group)))
1489 (condition-case nil
1490 (inline (gnus-request-group group (or dont-sub-check dont-check)
1491 method
1492 (gnus-get-info group)))
1493 (quit
1494 (if debug-on-quit
1495 (debug "Quit")
1496 (message "Quit activating %s" group))
1497 nil)))
1498 (unless dont-check
1499 (setq active (gnus-parse-active))
1500 ;; If there are no articles in the group, the GROUP
1501 ;; command may have responded with the `(0 . 0)'. We
1502 ;; ignore this if we already have an active entry
1503 ;; for the group.
1504 (if (and (zerop (or (car active) 0))
1505 (zerop (or (cdr active) 0))
1506 (gnus-active group))
1507 (gnus-active group)
1509 ;; If a cache is present, we may have to alter the active info.
1510 (when gnus-use-cache
1511 (inline (gnus-cache-possibly-alter-active
1512 group active)))
1514 ;; If the agent is enabled, we may have to alter the active info.
1515 (when gnus-agent
1516 (gnus-agent-possibly-alter-active group active))
1518 (gnus-set-active group active)
1519 ;; Return the new active info.
1520 active)))))
1522 (defun gnus-get-unread-articles-in-group (info active &optional update)
1523 (when (and info active)
1524 ;; Allow the backend to update the info in the group.
1525 (when (and update
1526 (gnus-request-update-info
1527 info (inline (gnus-find-method-for-group
1528 (gnus-info-group info)))))
1529 (gnus-activate-group (gnus-info-group info) nil t))
1531 (let* ((range (gnus-info-read info))
1532 (num 0))
1534 ;; These checks are present in gnus-activate-group but skipped
1535 ;; due to setting dont-check in the preceding call.
1537 ;; If a cache is present, we may have to alter the active info.
1538 (when (and gnus-use-cache info)
1539 (inline (gnus-cache-possibly-alter-active
1540 (gnus-info-group info) active)))
1542 ;; If the agent is enabled, we may have to alter the active info.
1543 (when (and gnus-agent info)
1544 (gnus-agent-possibly-alter-active (gnus-info-group info) active info))
1546 ;; Modify the list of read articles according to what articles
1547 ;; are available; then tally the unread articles and add the
1548 ;; number to the group hash table entry.
1549 (cond
1550 ((zerop (cdr active))
1551 (setq num 0))
1552 ((not range)
1553 (setq num (- (1+ (cdr active)) (car active))))
1554 ((not (listp (cdr range)))
1555 ;; Fix a single (num . num) range according to the
1556 ;; active hash table.
1557 ;; Fix by Carsten Bormann <cabo@Informatik.Uni-Bremen.DE>.
1558 (and (< (cdr range) (car active)) (setcdr range (1- (car active))))
1559 (and (> (cdr range) (cdr active)) (setcdr range (cdr active)))
1560 ;; Compute number of unread articles.
1561 (setq num (max 0 (- (cdr active) (- (1+ (cdr range)) (car range))))))
1563 ;; The read list is a list of ranges. Fix them according to
1564 ;; the active hash table.
1565 ;; First peel off any elements that are below the lower
1566 ;; active limit.
1567 (while (and (cdr range)
1568 (>= (car active)
1569 (or (and (atom (cadr range)) (cadr range))
1570 (caadr range))))
1571 (if (numberp (car range))
1572 (setcar range
1573 (cons (car range)
1574 (or (and (numberp (cadr range))
1575 (cadr range))
1576 (cdadr range))))
1577 (setcdr (car range)
1578 (or (and (numberp (nth 1 range)) (nth 1 range))
1579 (cdadr range))))
1580 (setcdr range (cddr range)))
1581 ;; Adjust the first element to be the same as the lower limit.
1582 (when (and (not (atom (car range)))
1583 (< (cdar range) (car active)))
1584 (setcdr (car range) (1- (car active))))
1585 ;; Then we want to peel off any elements that are higher
1586 ;; than the upper active limit.
1587 (let ((srange range))
1588 ;; Go past all valid elements.
1589 (while (and (cdr srange)
1590 (<= (or (and (atom (cadr srange))
1591 (cadr srange))
1592 (caadr srange))
1593 (cdr active)))
1594 (setq srange (cdr srange)))
1595 (when (cdr srange)
1596 ;; Nuke all remaining invalid elements.
1597 (setcdr srange nil))
1599 ;; Adjust the final element.
1600 (when (and (not (atom (car srange)))
1601 (> (cdar srange) (cdr active)))
1602 (setcdr (car srange) (cdr active))))
1603 ;; Compute the number of unread articles.
1604 (while range
1605 (setq num (+ num (- (1+ (or (and (atom (car range)) (car range))
1606 (cdar range)))
1607 (or (and (atom (car range)) (car range))
1608 (caar range)))))
1609 (setq range (cdr range)))
1610 (setq num (max 0 (- (cdr active) num)))))
1611 ;; Set the number of unread articles.
1612 (when (and info
1613 (gnus-group-entry (gnus-info-group info)))
1614 (setcar (gnus-group-entry (gnus-info-group info)) num))
1615 num)))
1617 ;; Go though `gnus-newsrc-alist' and compare with `gnus-active-hashtb'
1618 ;; and compute how many unread articles there are in each group.
1619 (defun gnus-get-unread-articles (&optional level dont-connect one-level)
1620 (setq gnus-server-method-cache nil)
1621 (require 'gnus-agent)
1622 (let* ((newsrc (cdr gnus-newsrc-alist))
1623 (alevel (or level gnus-activate-level (1+ gnus-level-subscribed)))
1624 (foreign-level
1626 level
1627 (min
1628 (cond ((and gnus-activate-foreign-newsgroups
1629 (not (numberp gnus-activate-foreign-newsgroups)))
1630 (1+ gnus-level-subscribed))
1631 ((numberp gnus-activate-foreign-newsgroups)
1632 gnus-activate-foreign-newsgroups)
1633 (t 0))
1634 alevel)))
1635 (methods-cache nil)
1636 (type-cache nil)
1637 (gnus-agent-article-local-times 0)
1638 (archive-method (gnus-server-to-method "archive"))
1639 infos info group active method cmethod
1640 method-type method-group-list entry)
1641 (gnus-message 6 "Checking new news...")
1643 (while newsrc
1644 (setq active (gnus-active (setq group (gnus-info-group
1645 (setq info (pop newsrc))))))
1646 ;; First go through all the groups, see what select methods they
1647 ;; belong to, and then collect them into lists per unique select
1648 ;; method.
1649 (if (not (setq method (gnus-info-method info)))
1650 (setq method gnus-select-method)
1651 ;; There may be several similar methods. Possibly extend the
1652 ;; method.
1653 (if (setq cmethod (assoc method methods-cache))
1654 (setq method (cdr cmethod))
1655 (setq cmethod (if (stringp method)
1656 (gnus-server-to-method method)
1657 (inline (gnus-find-method-for-group
1658 (gnus-info-group info) info))))
1659 (push (cons method cmethod) methods-cache)
1660 (setq method cmethod)))
1661 (setq method-group-list (assoc method type-cache))
1662 (unless method-group-list
1663 (setq method-type
1664 (cond
1665 ((or (gnus-secondary-method-p method)
1666 (and (gnus-archive-server-wanted-p)
1667 (gnus-methods-equal-p archive-method method)))
1668 'secondary)
1669 ((inline (gnus-server-equal gnus-select-method method))
1670 'primary)
1672 'foreign)))
1673 (push (setq method-group-list (list method method-type nil nil))
1674 type-cache))
1675 ;; Only add groups that need updating.
1676 (if (or (and foreign-level (null (numberp foreign-level)))
1677 (funcall (if one-level #'= #'<=) (gnus-info-level info)
1678 (if (eq (cadr method-group-list) 'foreign)
1679 foreign-level
1680 alevel)))
1681 (setcar (nthcdr 2 method-group-list)
1682 (cons info (nth 2 method-group-list)))
1683 ;; The group is inactive, so we nix out the number of unread articles.
1684 ;; It leads `(gnus-group-unread group)' to return t. See also
1685 ;; `gnus-group-prepare-flat'.
1686 (unless active
1687 (when (setq entry (gnus-group-entry group))
1688 (setcar entry t)))))
1690 ;; Sort the methods based so that the primary and secondary
1691 ;; methods come first. This is done for legacy reasons to try to
1692 ;; ensure that side-effect behavior doesn't change from previous
1693 ;; Gnus versions.
1694 (setq type-cache
1695 (sort (nreverse type-cache)
1696 (lambda (c1 c2)
1697 (< (gnus-method-rank (cadr c1) (car c1))
1698 (gnus-method-rank (cadr c2) (car c2))))))
1699 ;; Go through the list of servers and possibly extend methods that
1700 ;; aren't equal (and that need extension; i.e., they are async).
1701 (let ((methods nil))
1702 (dolist (elem type-cache)
1703 (destructuring-bind (method method-type infos dummy) elem
1704 (let ((gnus-opened-servers methods))
1705 (when (and (gnus-similar-server-opened method)
1706 (gnus-check-backend-function
1707 'retrieve-group-data-early (car method)))
1708 (setq method (gnus-server-extend-method
1709 (gnus-info-group (car infos))
1710 method))
1711 (setcar elem method))
1712 (push (list method 'ok) methods)))))
1714 ;; If we have primary/secondary select methods, but no groups from
1715 ;; them, we still want to issue a retrieval request from them.
1716 (unless dont-connect
1717 (dolist (method (cons gnus-select-method
1718 gnus-secondary-select-methods))
1719 (when (and (not (assoc method type-cache))
1720 (gnus-check-backend-function 'request-list (car method)))
1721 (with-current-buffer nntp-server-buffer
1722 (gnus-read-active-file-1 method nil)))))
1724 ;; Clear out all the early methods.
1725 (dolist (elem type-cache)
1726 (destructuring-bind (method method-type infos dummy) elem
1727 (when (and method
1728 infos
1729 (gnus-check-backend-function
1730 'retrieve-group-data-early (car method))
1731 (not (gnus-method-denied-p method)))
1732 (when (ignore-errors (gnus-get-function method 'open-server))
1733 (unless (gnus-server-opened method)
1734 (gnus-open-server method))
1735 (when (gnus-server-opened method)
1736 ;; Just mark this server as "cleared".
1737 (gnus-retrieve-group-data-early method nil))))))
1739 ;; Start early async retrieval of data.
1740 (let ((done-methods nil)
1741 sanity-spec)
1742 (dolist (elem type-cache)
1743 (destructuring-bind (method method-type infos dummy) elem
1744 (setq sanity-spec (list (car method) (cadr method)))
1745 (when (and method infos
1746 (not (gnus-method-denied-p method)))
1747 ;; If the open-server method doesn't exist, then the method
1748 ;; itself doesn't exist, so we ignore it.
1749 (if (not (ignore-errors (gnus-get-function method 'open-server)))
1750 (setq type-cache (delq elem type-cache))
1751 (unless (gnus-server-opened method)
1752 (gnus-open-server method))
1753 (when (and
1754 ;; This is a sanity check, so that we never
1755 ;; attempt to start two async requests to the
1756 ;; same server, because that will fail. This
1757 ;; should never happen, since the methods should
1758 ;; be unique at this point, but apparently it
1759 ;; does happen in the wild with some setups.
1760 (not (member sanity-spec done-methods))
1761 (gnus-server-opened method)
1762 (gnus-check-backend-function
1763 'retrieve-group-data-early (car method)))
1764 (push sanity-spec done-methods)
1765 (when (gnus-check-backend-function 'request-scan (car method))
1766 (gnus-request-scan nil method))
1767 ;; Store the token we get back from -early so that we
1768 ;; can pass it to -finish later.
1769 (setcar (nthcdr 3 elem)
1770 (gnus-retrieve-group-data-early method infos))))))))
1772 ;; Do the rest of the retrieval.
1773 (dolist (elem type-cache)
1774 (destructuring-bind (method method-type infos early-data) elem
1775 (when (and method infos
1776 (not (gnus-method-denied-p method)))
1777 (let ((updatep (gnus-check-backend-function
1778 'request-update-info (car method))))
1779 ;; See if any of the groups from this method require updating.
1780 (gnus-read-active-for-groups method infos early-data)
1781 (dolist (info infos)
1782 (inline (gnus-get-unread-articles-in-group
1783 info (gnus-active (gnus-info-group info))
1784 updatep)))))))
1785 (gnus-message 6 "Checking new news...done")))
1787 (defun gnus-method-rank (type method)
1788 (cond
1789 ;; Get info for virtual groups last.
1790 ((eq (car method) 'nnvirtual)
1791 200)
1792 ((eq type 'primary)
1794 ;; Compute the rank of the secondary methods based on where they
1795 ;; are in the secondary select list.
1796 ((eq type 'secondary)
1797 (let ((i 2))
1798 (block nil
1799 (dolist (smethod gnus-secondary-select-methods)
1800 (when (equal method smethod)
1801 (return i))
1802 (incf i))
1803 i)))
1804 ;; Just say that all foreign groups have the same rank.
1806 100)))
1808 (defun gnus-read-active-for-groups (method infos early-data)
1809 (with-current-buffer nntp-server-buffer
1810 (cond
1811 ;; Finish up getting the data from the methods that have -early
1812 ;; methods.
1813 ((and
1814 early-data
1815 (gnus-check-backend-function 'finish-retrieve-group-infos (car method))
1816 (or (not (gnus-agent-method-p method))
1817 (gnus-online method)))
1818 (gnus-finish-retrieve-group-infos method infos early-data)
1819 ;; We may have altered the data now, so mark the dribble buffer
1820 ;; as dirty so that it gets saved.
1821 (gnus-dribble-touch)
1822 (gnus-agent-save-active method))
1823 ;; Most backends have -retrieve-groups.
1824 ((gnus-check-backend-function 'retrieve-groups (car method))
1825 (when (gnus-check-backend-function 'request-scan (car method))
1826 (gnus-request-scan nil method))
1827 (let (groups)
1828 (gnus-read-active-file-2
1829 (dolist (info infos (nreverse groups))
1830 (push (gnus-group-real-name (gnus-info-group info)) groups))
1831 method)))
1832 ;; Virtually all backends have -request-list.
1833 ((gnus-check-backend-function 'request-list (car method))
1834 (gnus-read-active-file-1 method nil))
1835 ;; Except nnvirtual and friends, where we request each group, one
1836 ;; by one.
1838 (dolist (info infos)
1839 (gnus-activate-group (gnus-info-group info) nil nil method t))))))
1841 ;; Create a hash table out of the newsrc alist. The `car's of the
1842 ;; alist elements are used as keys.
1843 (defun gnus-make-hashtable-from-newsrc-alist ()
1844 (let ((alist gnus-newsrc-alist)
1845 (ohashtb gnus-newsrc-hashtb)
1846 prev info method rest methods)
1847 (setq gnus-newsrc-hashtb (gnus-make-hashtable (length alist)))
1848 (setq alist
1849 (setq prev (setq gnus-newsrc-alist
1850 (if (equal (caar gnus-newsrc-alist)
1851 "dummy.group")
1852 gnus-newsrc-alist
1853 (cons (list "dummy.group" 0 nil) alist)))))
1854 (while alist
1855 (setq info (car alist))
1856 ;; Make the same select-methods identical Lisp objects.
1857 (when (setq method (gnus-info-method info))
1858 (if (setq rest (member method methods))
1859 (gnus-info-set-method info (car rest))
1860 (push method methods)))
1861 ;; Check for duplicates.
1862 (if (gnus-gethash (car info) gnus-newsrc-hashtb)
1863 ;; Remove this entry from the alist.
1864 (setcdr prev (cddr prev))
1865 (gnus-sethash
1866 (car info)
1867 ;; Preserve number of unread articles in groups.
1868 (cons (and ohashtb (car (gnus-gethash (car info) ohashtb)))
1869 prev)
1870 gnus-newsrc-hashtb)
1871 (setq prev alist))
1872 (setq alist (cdr alist)))
1873 ;; Make the same select-methods in `gnus-server-alist' identical
1874 ;; as well.
1875 (while methods
1876 (setq method (pop methods))
1877 (when (setq rest (rassoc method gnus-server-alist))
1878 (setcdr rest method)))))
1880 (defun gnus-make-hashtable-from-killed ()
1881 "Create a hash table from the killed and zombie lists."
1882 (let ((lists '(gnus-killed-list gnus-zombie-list))
1883 list)
1884 (setq gnus-killed-hashtb
1885 (gnus-make-hashtable
1886 (+ (length gnus-killed-list) (length gnus-zombie-list))))
1887 (while lists
1888 (setq list (symbol-value (pop lists)))
1889 (while list
1890 (gnus-sethash (car list) (pop list) gnus-killed-hashtb)))))
1892 (defun gnus-parse-active ()
1893 "Parse active info in the nntp server buffer."
1894 (with-current-buffer nntp-server-buffer
1895 (goto-char (point-min))
1896 ;; Parse the result we got from `gnus-request-group'.
1897 (when (looking-at "[0-9]+ [0-9]+ \\([0-9]+\\) [0-9]+")
1898 (goto-char (match-beginning 1))
1899 (cons (read (current-buffer))
1900 (read (current-buffer))))))
1902 (defun gnus-make-articles-unread (group articles)
1903 "Mark ARTICLES in GROUP as unread."
1904 (let* ((info (nth 2 (or (gnus-group-entry group)
1905 (gnus-group-entry
1906 (gnus-group-real-name group)))))
1907 (ranges (gnus-info-read info))
1908 news article)
1909 (while articles
1910 (when (gnus-member-of-range
1911 (setq article (pop articles)) ranges)
1912 (push article news)))
1913 (when news
1914 ;; Enter this list into the group info.
1915 (gnus-info-set-read
1916 info (gnus-remove-from-range (gnus-info-read info) (nreverse news)))
1918 ;; Set the number of unread articles in gnus-newsrc-hashtb.
1919 (gnus-get-unread-articles-in-group info (gnus-active group))
1921 ;; Insert the change into the group buffer and the dribble file.
1922 (gnus-group-update-group group t))))
1924 (defun gnus-make-ascending-articles-unread (group articles)
1925 "Mark ascending ARTICLES in GROUP as unread."
1926 (let* ((entry (or (gnus-group-entry group)
1927 (gnus-group-entry (gnus-group-real-name group))))
1928 (info (nth 2 entry))
1929 (ranges (gnus-info-read info))
1930 (r ranges)
1931 modified)
1933 (while articles
1934 (let ((article (pop articles))) ; get the next article to remove from ranges
1935 (while (let ((range (car ranges))) ; note the current range
1936 (if (atom range) ; single value range
1937 (cond ((not range)
1938 ;; the articles extend past the end of the ranges
1939 ;; OK - I'm done
1940 (setq articles nil))
1941 ((< range article)
1942 ;; this range precedes the article. Leave the range unmodified.
1943 (pop ranges)
1944 ranges)
1945 ((= range article)
1946 ;; this range exactly matches the article; REMOVE THE RANGE.
1947 ;; NOTE: When the range being removed is the last range, the list is corrupted by inserting null at its end.
1948 (setcar ranges (cadr ranges))
1949 (setcdr ranges (cddr ranges))
1950 (setq modified (if (car ranges) t 'remove-null))
1951 nil))
1952 (let ((min (car range))
1953 (max (cdr range)))
1954 ;; I have a min/max range to consider
1955 (cond ((> min max) ; invalid range introduced by splitter
1956 (setcar ranges (cadr ranges))
1957 (setcdr ranges (cddr ranges))
1958 (setq modified (if (car ranges) t 'remove-null))
1959 ranges)
1960 ((= min max)
1961 ;; replace min/max range with a single-value range
1962 (setcar ranges min)
1963 ranges)
1964 ((< max article)
1965 ;; this range precedes the article. Leave the range unmodified.
1966 (pop ranges)
1967 ranges)
1968 ((< article min)
1969 ;; this article precedes the range. Return null to move to the
1970 ;; next article
1971 nil)
1973 ;; this article splits the range into two parts
1974 (setcdr ranges (cons (cons (1+ article) max) (cdr ranges)))
1975 (setcdr range (1- article))
1976 (setq modified t)
1977 ranges))))))))
1979 (when modified
1980 (when (eq modified 'remove-null)
1981 (setq r (delq nil r)))
1982 ;; Enter this list into the group info.
1983 (gnus-info-set-read info r)
1985 ;; Set the number of unread articles in gnus-newsrc-hashtb.
1986 (gnus-get-unread-articles-in-group info (gnus-active group))
1988 ;; Insert the change into the group buffer and the dribble file.
1989 (gnus-group-update-group group t))))
1991 ;; Enter all dead groups into the hashtb.
1992 (defun gnus-update-active-hashtb-from-killed ()
1993 (let ((hashtb (setq gnus-active-hashtb (gnus-make-hashtable 4096)))
1994 (lists (list gnus-killed-list gnus-zombie-list))
1995 killed)
1996 (while lists
1997 (setq killed (car lists))
1998 (while killed
1999 (gnus-sethash (string-as-unibyte (car killed)) nil hashtb)
2000 (setq killed (cdr killed)))
2001 (setq lists (cdr lists)))))
2003 (defun gnus-get-killed-groups ()
2004 "Go through the active hashtb and mark all unknown groups as killed."
2005 ;; First make sure active file has been read.
2006 (unless (gnus-read-active-file-p)
2007 (let ((gnus-read-active-file t))
2008 (gnus-read-active-file)))
2009 (unless gnus-killed-hashtb
2010 (gnus-make-hashtable-from-killed))
2011 ;; Go through all newsgroups that are known to Gnus - enlarge kill list.
2012 (mapatoms
2013 (lambda (sym)
2014 (let ((groups 0)
2015 (group (symbol-name sym)))
2016 (if (or (null group)
2017 (gnus-gethash group gnus-killed-hashtb)
2018 (gnus-gethash group gnus-newsrc-hashtb))
2020 (let ((do-sub (gnus-matches-options-n group)))
2021 (if (or (eq do-sub 'subscribe) (eq do-sub 'ignore))
2023 (setq groups (1+ groups))
2024 (push group gnus-killed-list)
2025 (gnus-sethash group group gnus-killed-hashtb))))))
2026 gnus-active-hashtb)
2027 (gnus-dribble-touch))
2029 ;; Get the active file(s) from the backend(s).
2030 (defun gnus-read-active-file (&optional force not-native)
2031 (gnus-group-set-mode-line)
2032 (let ((methods
2033 (mapcar
2034 (lambda (m) (if (stringp m) (gnus-server-get-method nil m) m))
2035 (append
2036 (if (and (not not-native)
2037 (gnus-check-server gnus-select-method))
2038 ;; The native server is available.
2039 (cons gnus-select-method gnus-secondary-select-methods)
2040 ;; The native server is down, so we just do the
2041 ;; secondary ones.
2042 gnus-secondary-select-methods)
2043 ;; Also read from the archive server.
2044 (when (gnus-archive-server-wanted-p)
2045 (list "archive")))))
2046 method)
2047 (setq gnus-have-read-active-file nil)
2048 (with-current-buffer nntp-server-buffer
2049 (while (setq method (pop methods))
2050 ;; Only do each method once, in case the methods appear more
2051 ;; than once in this list.
2052 (when (and (not (member method methods))
2053 ;; Check whether the backend exists.
2054 (ignore-errors (gnus-get-function method 'open-server)))
2055 (if (or debug-on-error debug-on-quit)
2056 (gnus-read-active-file-1 method force)
2057 (condition-case ()
2058 (gnus-read-active-file-1 method force)
2059 ;; We catch C-g so that we can continue past servers
2060 ;; that do not respond.
2061 (quit
2062 (if debug-on-quit
2063 (debug "Quit")
2064 (message "Quit reading the active file"))
2065 nil))))))))
2067 (defun gnus-read-active-file-1 (method force)
2068 (let (where mesg)
2069 (setq where (nth 1 method)
2070 mesg (format "Reading active file%s via %s..."
2071 (if (and where (not (zerop (length where))))
2072 (concat " from " where) "")
2073 (car method)))
2074 (gnus-message 5 "%s" mesg)
2075 (when (gnus-check-server method)
2076 ;; Request that the backend scan its incoming messages.
2077 (when (and (or (and gnus-agent
2078 (gnus-online method))
2079 (not gnus-agent))
2080 (gnus-check-backend-function 'request-scan (car method)))
2081 (gnus-request-scan nil method))
2082 (cond
2083 ((and (eq gnus-read-active-file 'some)
2084 (gnus-check-backend-function 'retrieve-groups (car method))
2085 (not force))
2086 (let ((newsrc (cdr gnus-newsrc-alist))
2087 (gmethod (gnus-server-get-method nil method))
2088 groups info)
2089 (while (setq info (pop newsrc))
2090 (when (inline
2091 (gnus-server-equal
2092 (inline
2093 (gnus-find-method-for-group
2094 (gnus-info-group info) info))
2095 gmethod))
2096 (push (gnus-group-real-name (gnus-info-group info))
2097 groups)))
2098 (gnus-read-active-file-2 groups method)))
2099 ((null method)
2102 (if (not (gnus-request-list method))
2103 (unless (equal method gnus-message-archive-method)
2104 (gnus-error 1 "Cannot read active file from %s server"
2105 (car method)))
2106 (gnus-message 5 "%s" mesg)
2107 (gnus-active-to-gnus-format method gnus-active-hashtb nil t)
2108 ;; We mark this active file as read.
2109 (add-to-list 'gnus-have-read-active-file method)
2110 (gnus-message 5 "%sdone" mesg)))))))
2112 (defun gnus-read-active-file-2 (groups method)
2113 "Read an active file for GROUPS in METHOD using `gnus-retrieve-groups'."
2114 (when groups
2115 (with-current-buffer nntp-server-buffer
2116 (gnus-check-server method)
2117 (let ((list-type (gnus-retrieve-groups groups method)))
2118 (cond ((not list-type)
2119 (gnus-error
2120 1.2 "Cannot read partial active file from %s server."
2121 (car method)))
2122 ((eq list-type 'active)
2123 (gnus-active-to-gnus-format method gnus-active-hashtb nil t))
2125 (gnus-groups-to-gnus-format method gnus-active-hashtb t)))))))
2127 ;; Read an active file and place the results in `gnus-active-hashtb'.
2128 (defun gnus-active-to-gnus-format (&optional method hashtb ignore-errors
2129 real-active)
2130 (unless method
2131 (setq method gnus-select-method))
2132 (let ((cur (current-buffer))
2133 (hashtb (or hashtb
2134 (if (and gnus-active-hashtb
2135 (not (equal method gnus-select-method)))
2136 gnus-active-hashtb
2137 (setq gnus-active-hashtb
2138 (if (equal method gnus-select-method)
2139 (gnus-make-hashtable
2140 (count-lines (point-min) (point-max)))
2141 (gnus-make-hashtable 4096))))))
2142 group max min)
2143 ;; Delete unnecessary lines.
2144 (goto-char (point-min))
2145 (cond
2146 ((string= gnus-ignored-newsgroups "")
2147 (delete-matching-lines "^to\\."))
2149 (delete-matching-lines (concat "^to\\.\\|" gnus-ignored-newsgroups))))
2151 (goto-char (point-min))
2152 (unless (re-search-forward "[\\\"]" nil t)
2153 ;; Make the group names readable as a lisp expression even if they
2154 ;; contain special characters.
2155 (goto-char (point-max))
2156 (while (re-search-backward "[][';?()#]" nil t)
2157 (insert ?\\)))
2159 ;; Let the Gnus agent save the active file.
2160 (when (and gnus-agent real-active (gnus-online method))
2161 (gnus-agent-save-active method))
2163 ;; If these are groups from a foreign select method, we insert the
2164 ;; group prefix in front of the group names.
2165 (when (not (gnus-server-equal
2166 (gnus-server-get-method nil method)
2167 (gnus-server-get-method nil gnus-select-method)))
2168 (let ((prefix (gnus-group-prefixed-name "" method)))
2169 (goto-char (point-min))
2170 (while (and (not (eobp))
2171 (progn
2172 (when (= (following-char) ?\")
2173 (forward-char 1))
2174 (insert prefix)
2175 (zerop (forward-line 1)))))))
2176 ;; Store the active file in a hash table.
2177 ;; Use a unibyte buffer in order to make `read' read non-ASCII
2178 ;; group names (which have been encoded) as unibyte strings.
2179 (mm-with-unibyte-buffer
2180 (insert-buffer-substring cur)
2181 (setq cur (current-buffer))
2182 (goto-char (point-min))
2183 (while (not (eobp))
2184 (condition-case ()
2185 (progn
2186 (narrow-to-region (point) (point-at-eol))
2187 ;; group gets set to a symbol interned in the hash table
2188 ;; (what a hack!!) - jwz
2189 (setq group (let ((obarray hashtb)) (read cur)))
2190 ;; ### The extended group name scheme makes
2191 ;; the previous optimization strategy sort of pointless...
2192 (when (stringp group)
2193 (setq group (intern group hashtb)))
2194 (if (and (numberp (setq max (read cur)))
2195 (numberp (setq min (read cur)))
2196 (progn
2197 (skip-chars-forward " \t")
2198 (not
2199 (or (eq (char-after) ?=)
2200 (eq (char-after) ?x)
2201 (eq (char-after) ?j)))))
2202 (progn
2203 (set group (cons min max))
2204 ;; if group is moderated, stick in moderation table
2205 (when (eq (char-after) ?m)
2206 (unless gnus-moderated-hashtb
2207 (setq gnus-moderated-hashtb (gnus-make-hashtable)))
2208 (gnus-sethash (symbol-name group) t
2209 gnus-moderated-hashtb)))
2210 (set group nil)))
2211 (error
2212 (and group
2213 (symbolp group)
2214 (set group nil))
2215 (unless ignore-errors
2216 (gnus-message 3 "Warning - invalid active: %s"
2217 (buffer-substring
2218 (point-at-bol) (point-at-eol))))))
2219 (widen)
2220 (forward-line 1)))))
2222 (defun gnus-groups-to-gnus-format (method &optional hashtb real-active)
2223 ;; Parse a "groups" active file.
2224 (let ((cur (current-buffer))
2225 (hashtb (or hashtb
2226 (if (and method gnus-active-hashtb)
2227 gnus-active-hashtb
2228 (setq gnus-active-hashtb
2229 (gnus-make-hashtable
2230 (count-lines (point-min) (point-max)))))))
2231 (prefix (and method
2232 (not (gnus-server-equal
2233 (gnus-server-get-method nil method)
2234 (gnus-server-get-method nil gnus-select-method)))
2235 (gnus-group-prefixed-name "" method))))
2237 ;; Let the Gnus agent save the active file.
2238 (if (and gnus-agent
2239 real-active
2240 (gnus-online method)
2241 (gnus-agent-method-p method))
2242 (progn
2243 (gnus-agent-save-active method t)
2244 (gnus-active-to-gnus-format method hashtb nil real-active))
2246 (goto-char (point-min))
2247 ;; We split this into to separate loops, one with the prefix
2248 ;; and one without to speed the reading up somewhat.
2249 (if prefix
2250 (let (min max opoint group)
2251 (while (not (eobp))
2252 (condition-case ()
2253 (progn
2254 (read cur) (read cur)
2255 (setq min (read cur)
2256 max (read cur)
2257 opoint (point))
2258 (skip-chars-forward " \t")
2259 (insert prefix)
2260 (goto-char opoint)
2261 (set (let ((obarray hashtb)) (read cur))
2262 (cons min max)))
2263 (error (and group (symbolp group) (set group nil))))
2264 (forward-line 1)))
2265 (let (min max group)
2266 (while (not (eobp))
2267 (condition-case ()
2268 (when (eq (char-after) ?2)
2269 (read cur) (read cur)
2270 (setq min (read cur)
2271 max (read cur))
2272 (set (setq group (let ((obarray hashtb)) (read cur)))
2273 (cons min max)))
2274 (error (and group (symbolp group) (set group nil))))
2275 (forward-line 1)))))))
2277 (defun gnus-read-newsrc-file (&optional force)
2278 "Read startup file.
2279 If FORCE is non-nil, the .newsrc file is read."
2280 ;; Reset variables that might be defined in the .newsrc.eld file.
2281 (let ((variables (remove 'gnus-format-specs gnus-variable-list)))
2282 (while variables
2283 (set (car variables) nil)
2284 (setq variables (cdr variables))))
2285 (let* ((newsrc-file gnus-current-startup-file)
2286 (quick-file (concat newsrc-file ".el")))
2287 (save-excursion
2288 ;; We always load the .newsrc.eld file. If always contains
2289 ;; much information that can not be gotten from the .newsrc
2290 ;; file (ticked articles, killed groups, foreign methods, etc.)
2291 (gnus-read-newsrc-el-file quick-file)
2293 (when (and gnus-read-newsrc-file
2294 (file-exists-p gnus-current-startup-file)
2295 (or force
2296 (and (file-newer-than-file-p newsrc-file quick-file)
2297 (file-newer-than-file-p newsrc-file
2298 (concat quick-file "d")))
2299 (not gnus-newsrc-alist)))
2300 ;; We read the .newsrc file. Note that if there if a
2301 ;; .newsrc.eld file exists, it has already been read, and
2302 ;; the `gnus-newsrc-hashtb' has been created. While reading
2303 ;; the .newsrc file, Gnus will only use the information it
2304 ;; can find there for changing the data already read -
2305 ;; i. e., reading the .newsrc file will not trash the data
2306 ;; already read (except for read articles).
2307 (save-excursion
2308 (gnus-message 5 "Reading %s..." newsrc-file)
2309 (set-buffer (nnheader-find-file-noselect newsrc-file))
2310 (buffer-disable-undo)
2311 (gnus-newsrc-to-gnus-format)
2312 (kill-buffer (current-buffer))
2313 (gnus-message 5 "Reading %s...done" newsrc-file)))
2315 ;; Convert old to new.
2316 (gnus-convert-old-newsrc)
2317 (gnus-clean-old-newsrc))))
2319 (defun gnus-clean-old-newsrc (&optional force)
2320 ;; Currently no cleanups.
2323 (defun gnus-convert-old-newsrc ()
2324 "Convert old newsrc formats into the current format, if needed."
2325 (let ((fcv (and gnus-newsrc-file-version
2326 (gnus-continuum-version gnus-newsrc-file-version)))
2327 (gcv (gnus-continuum-version)))
2328 (when fcv
2329 ;; A newsrc file was loaded.
2330 (let (prompt-displayed
2331 (converters
2332 (sort
2333 (mapcar (lambda (date-func)
2334 (cons (gnus-continuum-version (car date-func))
2335 date-func))
2336 ;; This is a list of converters that must be run
2337 ;; to bring the newsrc file up to the current
2338 ;; version. If you create an incompatibility
2339 ;; with older versions, you should create an
2340 ;; entry here. The entry should consist of the
2341 ;; current gnus version (hardcoded so that it
2342 ;; doesn't change with each release) and the
2343 ;; function that must be applied to convert the
2344 ;; previous version into the current version.
2345 '(("September Gnus v0.1" nil
2346 gnus-convert-old-ticks)
2347 ("Oort Gnus v0.08" "legacy-gnus-agent"
2348 gnus-agent-convert-to-compressed-agentview)
2349 ("Gnus v5.10.7" "legacy-gnus-agent"
2350 gnus-agent-unlist-expire-days)
2351 ("Gnus v5.10.7" "legacy-gnus-agent"
2352 gnus-agent-unhook-expire-days)))
2353 #'car-less-than-car)))
2354 ;; Skip converters older than the file version
2355 (while (and converters (>= fcv (caar converters)))
2356 (pop converters))
2358 ;; Perform converters to bring older version up to date.
2359 (when (and converters (< fcv (caar converters)))
2360 (while (and converters (< fcv (caar converters))
2361 (<= (caar converters) gcv))
2362 (let* ((converter-spec (pop converters))
2363 (convert-to (nth 1 converter-spec))
2364 (load-from (nth 2 converter-spec))
2365 (func (nth 3 converter-spec)))
2366 (when (and load-from
2367 (not (fboundp func)))
2368 (load load-from t))
2369 (or prompt-displayed
2370 (not (gnus-convert-converter-needs-prompt func))
2371 (while (let (c
2372 (cursor-in-echo-area t)
2373 (echo-keystrokes 0))
2374 (message "Convert gnus from version `%s' to `%s'? (n/y/?)"
2375 gnus-newsrc-file-version gnus-version)
2376 (setq c (read-char-exclusive))
2378 (cond ((or (eq c ?n) (eq c ?N))
2379 (error "Can not start gnus without converting"))
2380 ((or (eq c ?y) (eq c ?Y))
2381 (setq prompt-displayed t)
2382 nil)
2383 ((eq c ?\?)
2384 (message "This conversion is irreversible. \
2385 To be safe, you should backup your files before proceeding.")
2386 (sit-for 5)
2389 (gnus-message 3 "Ignoring unexpected input")
2390 (sit-for 3)
2391 t)))))
2393 (funcall func convert-to)))
2394 (gnus-dribble-enter
2395 (format-message ";Converted gnus from version `%s' to `%s'."
2396 gnus-newsrc-file-version gnus-version)))))))
2398 (defun gnus-convert-mark-converter-prompt (converter no-prompt)
2399 "Indicate whether CONVERTER requires gnus-convert-old-newsrc to
2400 display the conversion prompt. NO-PROMPT may be nil (prompt),
2401 t (no prompt), or any form that can be called as a function.
2402 The form should return either t or nil."
2403 (put converter 'gnus-convert-no-prompt no-prompt))
2405 (defun gnus-convert-converter-needs-prompt (converter)
2406 (let ((no-prompt (get converter 'gnus-convert-no-prompt)))
2407 (not (if (memq no-prompt '(t nil))
2408 no-prompt
2409 (funcall no-prompt)))))
2411 (defun gnus-convert-old-ticks (converting-to)
2412 (let ((newsrc (cdr gnus-newsrc-alist))
2413 marks info dormant ticked)
2414 (while (setq info (pop newsrc))
2415 (when (setq marks (gnus-info-marks info))
2416 (setq dormant (cdr (assq 'dormant marks))
2417 ticked (cdr (assq 'tick marks)))
2418 (when (or dormant ticked)
2419 (gnus-info-set-read
2420 info
2421 (gnus-add-to-range
2422 (gnus-info-read info)
2423 (nconc (gnus-uncompress-range dormant)
2424 (gnus-uncompress-range ticked)))))))))
2426 (defun gnus-load (file)
2427 "Load FILE, but in such a way that read errors can be reported."
2428 (with-temp-buffer
2429 (insert-file-contents file)
2430 (while (not (eobp))
2431 (condition-case type
2432 (let ((form (read (current-buffer))))
2433 (eval form))
2434 (error
2435 (unless (eq (car type) 'end-of-file)
2436 (let ((errmsg (format "Error in %s line %d" file
2437 (count-lines (point-min) (point)))))
2438 (ding)
2439 (unless (gnus-yes-or-no-p (concat errmsg "; continue? "))
2440 (error "%s" errmsg)))))))))
2442 (defun gnus-read-newsrc-el-file (file)
2443 (let ((ding-file (concat file "d")))
2444 (when (file-exists-p ding-file)
2445 ;; We always, always read the .eld file.
2446 (gnus-message 5 "Reading %s..." ding-file)
2447 (let (gnus-newsrc-assoc)
2448 (gnus-load ding-file)
2449 ;; Older versions of `gnus-format-specs' are no longer valid
2450 ;; in Oort Gnus 0.01.
2451 (let ((version
2452 (and gnus-newsrc-file-version
2453 (gnus-continuum-version gnus-newsrc-file-version))))
2454 (when (or (not version)
2455 (< version 5.090009))
2456 (setq gnus-format-specs gnus-default-format-specs)))
2457 (when gnus-newsrc-assoc
2458 (setq gnus-newsrc-alist gnus-newsrc-assoc))))
2459 (dolist (elem gnus-newsrc-alist)
2460 ;; Protect against broken .newsrc.el files.
2461 (when (car elem)
2462 (setcar elem (string-as-unibyte (car elem)))))
2463 (gnus-make-hashtable-from-newsrc-alist)
2464 (when (file-newer-than-file-p file ding-file)
2465 ;; Old format quick file
2466 (gnus-message 5 "Reading %s..." file)
2467 ;; The .el file is newer than the .eld file, so we read that one
2468 ;; as well.
2469 (gnus-read-old-newsrc-el-file file)))
2470 (gnus-run-hooks 'gnus-read-newsrc-el-hook))
2472 ;; Parse the old-style quick startup file
2473 (defun gnus-read-old-newsrc-el-file (file)
2474 (let (newsrc killed marked group m info)
2475 (prog1
2476 (let ((gnus-killed-assoc nil)
2477 gnus-marked-assoc gnus-newsrc-alist gnus-newsrc-assoc)
2478 (prog1
2479 (ignore-errors
2480 (load file t t t))
2481 (setq newsrc gnus-newsrc-assoc
2482 killed gnus-killed-assoc
2483 marked gnus-marked-assoc)))
2484 (setq gnus-newsrc-alist nil)
2485 (while (setq group (pop newsrc))
2486 (if (setq info (gnus-get-info (car group)))
2487 (progn
2488 (gnus-info-set-read info (cddr group))
2489 (gnus-info-set-level
2490 info (if (nth 1 group) gnus-level-default-subscribed
2491 gnus-level-default-unsubscribed))
2492 (push info gnus-newsrc-alist))
2493 (push (setq info
2494 (list (car group)
2495 (if (nth 1 group) gnus-level-default-subscribed
2496 gnus-level-default-unsubscribed)
2497 (cddr group)))
2498 gnus-newsrc-alist))
2499 ;; Copy marks into info.
2500 (when (setq m (assoc (car group) marked))
2501 (unless (nthcdr 3 info)
2502 (nconc info (list nil)))
2503 (gnus-info-set-marks
2504 info (list (cons 'tick (gnus-compress-sequence
2505 (sort (cdr m) '<) t))))))
2506 (setq newsrc killed)
2507 (while newsrc
2508 (setcar newsrc (caar newsrc))
2509 (setq newsrc (cdr newsrc)))
2510 (setq gnus-killed-list killed))
2511 ;; The .el file version of this variable does not begin with
2512 ;; "options", while the .eld version does, so we just add it if it
2513 ;; isn't there.
2514 (when
2515 gnus-newsrc-options
2516 (when (not (string-match "^ *options" gnus-newsrc-options))
2517 (setq gnus-newsrc-options (concat "options " gnus-newsrc-options)))
2518 (when (not (string-match "\n$" gnus-newsrc-options))
2519 (setq gnus-newsrc-options (concat gnus-newsrc-options "\n")))
2520 ;; Finally, if we read some options lines, we parse them.
2521 (unless (string= gnus-newsrc-options "")
2522 (gnus-newsrc-parse-options gnus-newsrc-options)))
2524 (setq gnus-newsrc-alist (nreverse gnus-newsrc-alist))
2525 (gnus-make-hashtable-from-newsrc-alist)))
2527 (defun gnus-make-newsrc-file (file)
2528 "Make server dependent file name by catenating FILE and server host name."
2529 (let* ((file (expand-file-name file nil))
2530 (real-file (concat file "-" (nth 1 gnus-select-method))))
2531 (if (or (file-exists-p real-file)
2532 (file-exists-p (concat real-file ".el"))
2533 (file-exists-p (concat real-file ".eld")))
2534 real-file
2535 file)))
2537 (defun gnus-newsrc-to-gnus-format ()
2538 (setq gnus-newsrc-options "")
2539 (setq gnus-newsrc-options-n nil)
2541 (unless gnus-active-hashtb
2542 (setq gnus-active-hashtb (gnus-make-hashtable 4096)))
2543 (let ((buf (current-buffer))
2544 (already-read (> (length gnus-newsrc-alist) 1))
2545 group subscribed options-symbol newsrc Options-symbol
2546 symbol reads num1)
2547 (goto-char (point-min))
2548 ;; We intern the symbol `options' in the active hashtb so that we
2549 ;; can `eq' against it later.
2550 (set (setq options-symbol (intern "options" gnus-active-hashtb)) nil)
2551 (set (setq Options-symbol (intern "Options" gnus-active-hashtb)) nil)
2553 (while (not (eobp))
2554 ;; We first read the first word on the line by narrowing and
2555 ;; then reading into `gnus-active-hashtb'. Most groups will
2556 ;; already exist in that hashtb, so this will save some string
2557 ;; space.
2558 (narrow-to-region
2559 (point)
2560 (progn (skip-chars-forward "^ \t!:\n") (point)))
2561 (goto-char (point-min))
2562 (setq symbol
2563 (and (/= (point-min) (point-max))
2564 (let ((obarray gnus-active-hashtb)) (read buf))))
2565 (widen)
2566 ;; Now, the symbol we have read is either `options' or a group
2567 ;; name. If it is an options line, we just add it to a string.
2568 (cond
2569 ((or (eq symbol options-symbol)
2570 (eq symbol Options-symbol))
2571 (setq gnus-newsrc-options
2572 ;; This concatting is quite inefficient, but since our
2573 ;; thorough studies show that approx 99.37% of all
2574 ;; .newsrc files only contain a single options line, we
2575 ;; don't give a damn, frankly, my dear.
2576 (concat gnus-newsrc-options
2577 (buffer-substring
2578 (point-at-bol)
2579 ;; Options may continue on the next line.
2580 (or (and (re-search-forward "^[^ \t]" nil 'move)
2581 (point-at-bol))
2582 (point)))))
2583 (forward-line -1))
2584 (symbol
2585 ;; Group names can be just numbers.
2586 (when (numberp symbol)
2587 (setq symbol (intern (int-to-string symbol) gnus-active-hashtb)))
2588 (unless (boundp symbol)
2589 (set symbol nil))
2590 ;; It was a group name.
2591 (setq subscribed (eq (char-after) ?:)
2592 group (symbol-name symbol)
2593 reads nil)
2594 (if (eolp)
2595 ;; If the line ends here, this is clearly a buggy line, so
2596 ;; we put point a the beginning of line and let the cond
2597 ;; below do the error handling.
2598 (beginning-of-line)
2599 ;; We skip to the beginning of the ranges.
2600 (skip-chars-forward "!: \t"))
2601 ;; We are now at the beginning of the list of read articles.
2602 ;; We read them range by range.
2603 (while
2604 (cond
2605 ((looking-at "[0-9]+")
2606 ;; We narrow and read a number instead of buffer-substring/
2607 ;; string-to-number because it's faster. narrow/widen is
2608 ;; faster than save-restriction/narrow, and save-restriction
2609 ;; produces a garbage object.
2610 (setq num1 (progn
2611 (narrow-to-region (match-beginning 0) (match-end 0))
2612 (read buf)))
2613 (widen)
2614 ;; If the next character is a dash, then this is a range.
2615 (if (eq (char-after) ?-)
2616 (progn
2617 ;; We read the upper bound of the range.
2618 (forward-char 1)
2619 (if (not (looking-at "[0-9]+"))
2620 ;; This is a buggy line, by we pretend that
2621 ;; it's kinda OK. Perhaps the user should be
2622 ;; dinged?
2623 (push num1 reads)
2624 (push
2625 (cons num1
2626 (progn
2627 (narrow-to-region (match-beginning 0)
2628 (match-end 0))
2629 (read buf)))
2630 reads)
2631 (widen)))
2632 ;; It was just a simple number, so we add it to the
2633 ;; list of ranges.
2634 (push num1 reads))
2635 ;; If the next char in ?\n, then we have reached the end
2636 ;; of the line and return nil.
2637 (not (eq (char-after) ?\n)))
2638 ((eq (char-after) ?\n)
2639 ;; End of line, so we end.
2640 nil)
2642 ;; Not numbers and not eol, so this might be a buggy
2643 ;; line...
2644 (unless (eobp)
2645 ;; If it was eob instead of ?\n, we allow it.
2646 ;; The line was buggy.
2647 (setq group nil)
2648 (gnus-error 3.1 "Mangled line: %s"
2649 (buffer-substring (point-at-bol)
2650 (point-at-eol))))
2651 nil))
2652 ;; Skip past ", ". Spaces are invalid in these ranges, but
2653 ;; we allow them, because it's a common mistake to put a
2654 ;; space after the comma.
2655 (skip-chars-forward ", "))
2657 ;; We have already read .newsrc.eld, so we gently update the
2658 ;; data in the hash table with the information we have just
2659 ;; read.
2660 (when group
2661 (let ((info (gnus-get-info group))
2662 level)
2663 (if info
2664 ;; There is an entry for this file in the alist.
2665 (progn
2666 (gnus-info-set-read info (nreverse reads))
2667 ;; We update the level very gently. In fact, we
2668 ;; only change it if there's been a status change
2669 ;; from subscribed to unsubscribed, or vice versa.
2670 (setq level (gnus-info-level info))
2671 (cond ((and (<= level gnus-level-subscribed)
2672 (not subscribed))
2673 (setq level (if reads
2674 gnus-level-default-unsubscribed
2675 (1+ gnus-level-default-unsubscribed))))
2676 ((and (> level gnus-level-subscribed) subscribed)
2677 (setq level gnus-level-default-subscribed)))
2678 (gnus-info-set-level info level))
2679 ;; This is a new group.
2680 (setq info (list group
2681 (if subscribed
2682 gnus-level-default-subscribed
2683 (if reads
2684 (1+ gnus-level-subscribed)
2685 gnus-level-default-unsubscribed))
2686 (nreverse reads))))
2687 (push info newsrc)))))
2688 (forward-line 1))
2690 (setq newsrc (nreverse newsrc))
2692 (if (not already-read)
2694 ;; We now have two newsrc lists - `newsrc', which is what we
2695 ;; have read from .newsrc, and `gnus-newsrc-alist', which is
2696 ;; what we've read from .newsrc.eld. We have to merge these
2697 ;; lists. We do this by "attaching" any (foreign) groups in the
2698 ;; gnus-newsrc-alist to the (native) group that precedes them.
2699 (let ((rc (cdr gnus-newsrc-alist))
2700 (prev gnus-newsrc-alist)
2701 entry mentry)
2702 (while rc
2703 (or (null (nth 4 (car rc))) ; It's a native group.
2704 (assoc (caar rc) newsrc) ; It's already in the alist.
2705 (if (setq entry (assoc (caar prev) newsrc))
2706 (setcdr (setq mentry (memq entry newsrc))
2707 (cons (car rc) (cdr mentry)))
2708 (push (car rc) newsrc)))
2709 (setq prev rc
2710 rc (cdr rc)))))
2712 (setq gnus-newsrc-alist newsrc)
2713 ;; We make the newsrc hashtb.
2714 (gnus-make-hashtable-from-newsrc-alist)
2716 ;; Finally, if we read some options lines, we parse them.
2717 (unless (string= gnus-newsrc-options "")
2718 (gnus-newsrc-parse-options gnus-newsrc-options))))
2720 ;; Parse options lines to find "options -n !all rec.all" and stuff.
2721 ;; The return value will be a list on the form
2722 ;; ((regexp1 . ignore)
2723 ;; (regexp2 . subscribe)...)
2724 ;; When handling new newsgroups, groups that match a `ignore' regexp
2725 ;; will be ignored, and groups that match a `subscribe' regexp will be
2726 ;; subscribed. A line like
2727 ;; options -n !all rec.all
2728 ;; will lead to a list that looks like
2729 ;; (("^rec\\..+" . subscribe)
2730 ;; ("^.+" . ignore))
2731 ;; So all "rec.*" groups will be subscribed, while all the other
2732 ;; groups will be ignored. Note that "options -n !all rec.all" is very
2733 ;; different from "options -n rec.all !all".
2734 (defun gnus-newsrc-parse-options (options)
2735 (let (out eol)
2736 (save-excursion
2737 (gnus-set-work-buffer)
2738 (insert (regexp-quote options))
2739 ;; First we treat all continuation lines.
2740 (goto-char (point-min))
2741 (while (re-search-forward "\n[ \t]+" nil t)
2742 (replace-match " " t t))
2743 ;; Then we transform all "all"s into ".+"s.
2744 (goto-char (point-min))
2745 (while (re-search-forward "\\ball\\b" nil t)
2746 (replace-match ".+" t t))
2747 (goto-char (point-min))
2748 ;; We remove all other options than the "-n" ones.
2749 (while (re-search-forward "[ \t]-[^n][^-]*" nil t)
2750 (replace-match " ")
2751 (forward-char -1))
2752 (goto-char (point-min))
2754 ;; We are only interested in "options -n" lines - we
2755 ;; ignore the other option lines.
2756 (while (re-search-forward "[ \t]-n" nil t)
2757 (setq eol
2758 (or (save-excursion
2759 (and (re-search-forward "[ \t]-n" (point-at-eol) t)
2760 (- (point) 2)))
2761 (point-at-eol)))
2762 ;; Search for all "words"...
2763 (while (re-search-forward "[^ \t,\n]+" eol t)
2764 (if (eq (char-after (match-beginning 0)) ?!)
2765 ;; If the word begins with a bang (!), this is a "not"
2766 ;; spec. We put this spec (minus the bang) and the
2767 ;; symbol `ignore' into the list.
2768 (push (cons (concat
2769 "^" (buffer-substring
2770 (1+ (match-beginning 0))
2771 (match-end 0))
2772 "\\($\\|\\.\\)")
2773 'ignore)
2774 out)
2775 ;; There was no bang, so this is a "yes" spec.
2776 (push (cons (concat "^" (match-string 0) "\\($\\|\\.\\)")
2777 'subscribe)
2778 out))))
2780 (setq gnus-newsrc-options-n out))))
2782 (eval-and-compile
2783 (defalias 'gnus-long-file-names
2784 (if (fboundp 'msdos-long-file-names)
2785 'msdos-long-file-names
2786 (lambda () t))))
2788 (defvar gnus-save-newsrc-file-last-timestamp nil)
2789 (defun gnus-save-newsrc-file (&optional force)
2790 "Save .newsrc file."
2791 ;; Note: We cannot save .newsrc file if all newsgroups are removed
2792 ;; from the variable gnus-newsrc-alist.
2793 (when (and (or gnus-newsrc-alist gnus-killed-list)
2794 gnus-current-startup-file)
2795 ;; Save agent range limits for the currently active method.
2796 (when gnus-agent
2797 (gnus-agent-save-local force))
2799 (save-excursion
2800 (if (and (or gnus-use-dribble-file gnus-slave)
2801 (not force)
2802 (or (not gnus-dribble-buffer)
2803 (not (buffer-name gnus-dribble-buffer))
2804 (zerop (with-current-buffer gnus-dribble-buffer
2805 (buffer-size)))))
2806 (gnus-message 4 "(No changes need to be saved)")
2807 (gnus-run-hooks 'gnus-save-newsrc-hook)
2808 (if gnus-slave
2809 (gnus-slave-save-newsrc)
2810 ;; Save .newsrc only if the select method is an NNTP method.
2811 ;; The .newsrc file is for interoperability with other
2812 ;; newsreaders, so saving non-NNTP groups there doesn't make
2813 ;; much sense.
2814 (when (and gnus-save-newsrc-file
2815 (eq (car (gnus-server-to-method gnus-select-method))
2816 'nntp))
2817 (gnus-message 8 "Saving %s..." gnus-current-startup-file)
2818 (gnus-gnus-to-newsrc-format)
2819 (gnus-message 8 "Saving %s...done" gnus-current-startup-file))
2821 ;; Save .newsrc.eld.
2822 (set-buffer (gnus-get-buffer-create " *Gnus-newsrc*"))
2823 (make-local-variable 'version-control)
2824 (setq version-control gnus-backup-startup-file)
2825 (setq buffer-file-name
2826 (concat gnus-current-startup-file ".eld"))
2827 (setq default-directory (file-name-directory buffer-file-name))
2828 (buffer-disable-undo)
2829 (erase-buffer)
2830 (gnus-message 5 "Saving %s.eld..." gnus-current-startup-file)
2832 ;; check timestamp of `gnus-current-startup-file'.eld against
2833 ;; `gnus-save-newsrc-file-last-timestamp'
2834 (let* ((checkfile (concat gnus-current-startup-file ".eld"))
2835 (mtime (nth 5 (file-attributes checkfile))))
2836 (when (and gnus-save-newsrc-file-last-timestamp
2837 (time-less-p gnus-save-newsrc-file-last-timestamp
2838 mtime))
2839 (unless (y-or-n-p
2840 (format "%s was updated externally after %s, save?"
2841 checkfile
2842 (format-time-string
2843 "%c"
2844 gnus-save-newsrc-file-last-timestamp)))
2845 (error "Couldn't save %s: updated externally" checkfile))))
2847 (if gnus-save-startup-file-via-temp-buffer
2848 (let ((coding-system-for-write gnus-ding-file-coding-system)
2849 (standard-output (current-buffer)))
2850 (gnus-gnus-to-quick-newsrc-format)
2851 (gnus-run-hooks 'gnus-save-quick-newsrc-hook)
2852 (save-buffer)
2853 (setq gnus-save-newsrc-file-last-timestamp
2854 (nth 5 (file-attributes buffer-file-name))))
2855 (let ((coding-system-for-write gnus-ding-file-coding-system)
2856 (version-control gnus-backup-startup-file)
2857 (startup-file (concat gnus-current-startup-file ".eld"))
2858 (working-dir (file-name-directory gnus-current-startup-file))
2859 working-file
2860 (i -1))
2861 ;; Generate the name of a non-existent file.
2862 (while (progn (setq working-file
2863 (format
2864 (if (and (eq system-type 'ms-dos)
2865 (not (gnus-long-file-names)))
2866 "%s#%d.tm#" ; MSDOS limits files to 8+3
2867 "%s#tmp#%d")
2868 working-dir (setq i (1+ i))))
2869 (file-exists-p working-file)))
2871 (unwind-protect
2872 (progn
2873 (gnus-with-output-to-file working-file
2874 (gnus-gnus-to-quick-newsrc-format)
2875 (gnus-run-hooks 'gnus-save-quick-newsrc-hook))
2877 ;; These bindings will mislead the current buffer
2878 ;; into thinking that it is visiting the startup
2879 ;; file.
2880 (let ((buffer-backed-up nil)
2881 (buffer-file-name startup-file)
2882 (file-precious-flag t)
2883 (setmodes (file-modes startup-file)))
2884 ;; Backup the current version of the startup file.
2885 (backup-buffer)
2887 ;; Replace the existing startup file with the temp file.
2888 (rename-file working-file startup-file t)
2889 (gnus-set-file-modes startup-file setmodes)
2890 (setq gnus-save-newsrc-file-last-timestamp
2891 (nth 5 (file-attributes startup-file)))))
2892 (condition-case nil
2893 (delete-file working-file)
2894 (file-error nil)))))
2896 (gnus-kill-buffer (current-buffer))
2897 (gnus-message
2898 5 "Saving %s.eld...done" gnus-current-startup-file))
2899 (gnus-dribble-delete-file)
2900 (gnus-group-set-mode-line)))))
2902 (defun gnus-gnus-to-quick-newsrc-format (&optional minimal name &rest specific-variables)
2903 "Print Gnus variables such as `gnus-newsrc-alist' in Lisp format."
2904 (princ (format ";; -*- mode:emacs-lisp; coding: %s; -*-\n"
2905 gnus-ding-file-coding-system))
2906 (if name
2907 (princ (format ";; %s\n" name))
2908 (princ ";; Gnus startup file.\n"))
2910 (unless minimal
2911 (princ "\
2912 ;; Never delete this file -- if you want to force Gnus to read the
2913 ;; .newsrc file (if you have one), touch .newsrc instead.\n")
2914 (princ "(setq gnus-newsrc-file-version ")
2915 (princ (gnus-prin1-to-string gnus-version))
2916 (princ ")\n"))
2918 (let* ((print-quoted t)
2919 (print-readably t)
2920 (print-escape-multibyte nil)
2921 (print-escape-nonascii t)
2922 (print-length nil)
2923 (print-level nil)
2924 (print-circle nil)
2925 (print-escape-newlines t)
2926 (gnus-killed-list
2927 (if (and gnus-save-killed-list
2928 (stringp gnus-save-killed-list))
2929 (gnus-strip-killed-list)
2930 gnus-killed-list))
2931 (variables
2932 (or specific-variables
2933 (if gnus-save-killed-list gnus-variable-list
2934 ;; Remove the `gnus-killed-list' from the list of variables
2935 ;; to be saved, if required.
2936 (delq 'gnus-killed-list (copy-sequence gnus-variable-list)))))
2937 ;; Peel off the "dummy" group.
2938 (gnus-newsrc-alist (cdr gnus-newsrc-alist))
2939 variable)
2940 ;; Insert the variables into the file.
2941 (while variables
2942 (when (and (boundp (setq variable (pop variables)))
2943 (symbol-value variable))
2944 (princ "\n(setq ")
2945 (princ (symbol-name variable))
2946 (princ " '")
2947 (prin1 (symbol-value variable))
2948 (princ ")\n")))))
2950 (defun gnus-strip-killed-list ()
2951 "Return the killed list minus the groups that match `gnus-save-killed-list'."
2952 (let ((list gnus-killed-list)
2953 olist)
2954 (while list
2955 (when (string-match gnus-save-killed-list (car list))
2956 (push (car list) olist))
2957 (pop list))
2958 (nreverse olist)))
2960 (defun gnus-gnus-to-newsrc-format (&optional foreign-ok)
2961 (interactive (list (gnus-y-or-n-p "write foreign groups too? ")))
2962 ;; Generate and save the .newsrc file.
2963 (with-current-buffer (create-file-buffer gnus-current-startup-file)
2964 (let ((newsrc (cdr gnus-newsrc-alist))
2965 (standard-output (current-buffer))
2966 info ranges range method)
2967 (setq buffer-file-name gnus-current-startup-file)
2968 (setq default-directory (file-name-directory buffer-file-name))
2969 (buffer-disable-undo)
2970 (erase-buffer)
2971 ;; Use a unibyte buffer since group names are unibyte strings;
2972 ;; in particular, non-ASCII group names are the ones encoded by
2973 ;; a certain coding system.
2974 (mm-disable-multibyte)
2975 ;; Write options.
2976 (when gnus-newsrc-options
2977 (insert gnus-newsrc-options))
2978 ;; Write subscribed and unsubscribed.
2979 (while (setq info (pop newsrc))
2980 ;; Don't write foreign groups to .newsrc.
2981 (when (or (null (setq method (gnus-info-method info)))
2982 (equal method "native")
2983 (inline (gnus-server-equal method gnus-select-method))
2984 foreign-ok)
2985 (insert (gnus-info-group info)
2986 (if (> (gnus-info-level info) gnus-level-subscribed)
2987 "!" ":"))
2988 (when (setq ranges (gnus-info-read info))
2989 (insert " ")
2990 (if (not (listp (cdr ranges)))
2991 (if (= (car ranges) (cdr ranges))
2992 (princ (car ranges))
2993 (princ (car ranges))
2994 (insert "-")
2995 (princ (cdr ranges)))
2996 (while (setq range (pop ranges))
2997 (if (or (atom range) (= (car range) (cdr range)))
2998 (princ (or (and (atom range) range) (car range)))
2999 (princ (car range))
3000 (insert "-")
3001 (princ (cdr range)))
3002 (when ranges
3003 (insert ",")))))
3004 (insert "\n")))
3005 (make-local-variable 'version-control)
3006 (setq version-control 'never)
3007 ;; It has been reported that sometime the modtime on the .newsrc
3008 ;; file seems to be off. We really do want to overwrite it, so
3009 ;; we clear the modtime here before saving. It's a bit odd,
3010 ;; though...
3011 ;; sometimes the modtime clear isn't sufficient. most brute force:
3012 ;; delete the silly thing entirely first. but this fails to provide
3013 ;; such niceties as .newsrc~ creation.
3014 (if gnus-modtime-botch
3015 (delete-file gnus-startup-file)
3016 (clear-visited-file-modtime))
3017 (gnus-run-hooks 'gnus-save-standard-newsrc-hook)
3018 (let ((coding-system-for-write 'raw-text))
3019 (save-buffer))
3020 (kill-buffer (current-buffer)))))
3024 ;;; Slave functions.
3027 (defvar gnus-slave-mode nil)
3029 (defun gnus-slave-mode ()
3030 "Minor mode for slave Gnusae."
3031 ;; FIXME: gnus-slave-mode appears to never be set (i.e. it'll always be nil):
3032 ;; Remove, or fix and use define-minor-mode.
3033 (add-minor-mode 'gnus-slave-mode " Slave" (make-sparse-keymap))
3034 (gnus-run-hooks 'gnus-slave-mode-hook))
3036 (defun gnus-slave-save-newsrc ()
3037 (with-current-buffer gnus-dribble-buffer
3038 (let ((slave-name
3039 (make-temp-file (concat gnus-current-startup-file "-slave-")))
3040 (modes (ignore-errors
3041 (file-modes (concat gnus-current-startup-file ".eld")))))
3042 (let ((coding-system-for-write gnus-ding-file-coding-system))
3043 (gnus-write-buffer slave-name))
3044 (when modes
3045 (gnus-set-file-modes slave-name modes)))))
3047 (defun gnus-master-read-slave-newsrc ()
3048 (let ((slave-files
3049 (directory-files
3050 (file-name-directory gnus-current-startup-file)
3051 t (concat
3052 "^" (regexp-quote
3053 (concat
3054 (file-name-nondirectory gnus-current-startup-file)
3055 "-slave-")))
3057 file)
3058 (if (not slave-files)
3059 () ; There are no slave files to read.
3060 (gnus-message 7 "Reading slave newsrcs...")
3061 (with-current-buffer (gnus-get-buffer-create " *gnus slave*")
3062 (setq slave-files
3063 (sort (mapcar (lambda (file)
3064 (list (nth 5 (file-attributes file)) file))
3065 slave-files)
3066 (lambda (f1 f2)
3067 (or (< (caar f1) (caar f2))
3068 (< (nth 1 (car f1)) (nth 1 (car f2)))))))
3069 (while slave-files
3070 (erase-buffer)
3071 (setq file (nth 1 (car slave-files)))
3072 (nnheader-insert-file-contents file)
3073 (when (condition-case ()
3074 (progn
3075 (eval-buffer (current-buffer))
3077 (error
3078 (gnus-error 3.2 "Possible error in %s" file)
3079 nil))
3080 (unless gnus-slave ; Slaves shouldn't delete these files.
3081 (ignore-errors
3082 (delete-file file))))
3083 (setq slave-files (cdr slave-files))))
3084 (gnus-dribble-touch)
3085 (gnus-message 7 "Reading slave newsrcs...done"))))
3089 ;;; Group description.
3092 (defun gnus-read-all-descriptions-files ()
3093 (let ((methods (cons gnus-select-method
3094 (nconc
3095 (when (gnus-archive-server-wanted-p)
3096 (list "archive"))
3097 gnus-secondary-select-methods))))
3098 (while methods
3099 (gnus-read-descriptions-file (car methods))
3100 (setq methods (cdr methods)))
3103 (defun gnus-read-descriptions-file (&optional method)
3104 (let ((method (or method gnus-select-method))
3105 group)
3106 (when (stringp method)
3107 (setq method (gnus-server-to-method method)))
3108 ;; We create the hashtable whether we manage to read the desc file
3109 ;; to avoid trying to re-read after a failed read.
3110 (unless gnus-description-hashtb
3111 (setq gnus-description-hashtb
3112 (gnus-make-hashtable (length gnus-active-hashtb))))
3113 ;; Mark this method's desc file as read.
3114 (gnus-sethash (gnus-group-prefixed-name "" method) "Has read"
3115 gnus-description-hashtb)
3117 (gnus-message 5 "Reading descriptions file via %s..." (car method))
3118 (cond
3119 ((null (gnus-get-function method 'request-list-newsgroups t))
3121 ((not (gnus-check-server method))
3122 (gnus-message 1 "Couldn't open server")
3123 nil)
3124 ((not (gnus-request-list-newsgroups method))
3125 (gnus-message 1 "Couldn't read newsgroups descriptions")
3126 nil)
3128 (save-excursion
3129 ;; FIXME: Shouldn't save-restriction be done after set-buffer?
3130 (save-restriction
3131 (set-buffer nntp-server-buffer)
3132 (goto-char (point-min))
3133 (when (or (search-forward "\n.\n" nil t)
3134 (goto-char (point-max)))
3135 (beginning-of-line)
3136 (narrow-to-region (point-min) (point)))
3137 ;; If these are groups from a foreign select method, we insert the
3138 ;; group prefix in front of the group names.
3139 (and method (not (inline
3140 (gnus-server-equal
3141 (gnus-server-get-method nil method)
3142 (gnus-server-get-method
3143 nil gnus-select-method))))
3144 (let ((prefix (gnus-group-prefixed-name "" method)))
3145 (goto-char (point-min))
3146 (while (and (not (eobp))
3147 (progn (insert prefix)
3148 (zerop (forward-line 1)))))))
3149 (goto-char (point-min))
3150 (while (not (eobp))
3151 ;; If we get an error, we set group to 0, which is not a
3152 ;; symbol...
3153 (setq group
3154 (condition-case ()
3155 (let ((obarray gnus-description-hashtb))
3156 ;; Group is set to a symbol interned in this
3157 ;; hash table.
3158 (read nntp-server-buffer))
3159 (error 0)))
3160 (skip-chars-forward " \t")
3161 ;; ... which leads to this line being effectively ignored.
3162 (when (symbolp group)
3163 (let* ((str (buffer-substring
3164 (point) (progn (end-of-line) (point))))
3165 (name (symbol-name group))
3166 (charset
3167 (or (gnus-group-name-charset method name)
3168 (gnus-parameter-charset name)
3169 gnus-default-charset)))
3170 ;; Fixme: Don't decode in unibyte mode.
3171 (when (and str charset)
3172 (setq str (decode-coding-string str charset)))
3173 (set group str)))
3174 (forward-line 1))))
3175 (gnus-message 5 "Reading descriptions file...done")
3176 t))))
3178 (defun gnus-group-get-description (group)
3179 "Get the description of a group by sending XGTITLE to the server."
3180 (when (gnus-request-group-description group)
3181 (with-current-buffer nntp-server-buffer
3182 (goto-char (point-min))
3183 (when (looking-at "[^ \t]+[ \t]+\\(.*\\)")
3184 (match-string 1)))))
3186 ;;;###autoload
3187 (defun gnus-declare-backend (name &rest abilities)
3188 "Declare back end NAME with ABILITIES as a Gnus back end."
3189 (setq gnus-valid-select-methods
3190 (nconc gnus-valid-select-methods
3191 (list (apply 'list name abilities))))
3192 (gnus-redefine-select-method-widget))
3194 (defun gnus-set-default-directory ()
3195 "Set the default directory in the current buffer to `gnus-default-directory'.
3196 If this variable is nil, don't do anything."
3197 (setq default-directory
3198 (if (and gnus-default-directory
3199 (file-exists-p gnus-default-directory))
3200 (file-name-as-directory (expand-file-name gnus-default-directory))
3201 default-directory)))
3203 (defun gnus-display-time-event-handler ()
3204 (if (and (fboundp 'display-time-event-handler)
3205 (bound-and-true-p display-time-timer))
3206 (display-time-event-handler)))
3208 (defun gnus-check-reasonable-setup ()
3209 ;; Check whether nnml and nnfolder share a directory.
3210 (let (method active actives match)
3211 (dolist (server gnus-server-alist)
3212 (setq method (gnus-server-to-method server)
3213 active (intern (format "%s-active-file" (car method))))
3214 (when (and (member (car method) '(nnml nnfolder))
3215 (gnus-server-opened method)
3216 (boundp active))
3217 (when (setq match (assoc (symbol-value active) actives))
3218 (display-warning 'gnus-server
3219 (format "%s and %s share the same active file %s"
3220 (car method)
3221 (cadr match)
3222 (car match))))
3223 (push (list (symbol-value active) method) actives)))))
3225 (provide 'gnus-start)
3227 ;;; gnus-start.el ends here