1 ;;; gnus-start.el --- startup functions for Gnus
2 ;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001
3 ;; Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
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 2, or (at your option)
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; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
36 (eval-when-compile (require 'cl))
38 (defcustom gnus-startup-file (nnheader-concat gnus-home-directory ".newsrc")
40 `.newsrc-SERVER' will be used instead if that exists."
44 (defcustom gnus-init-file (nnheader-concat gnus-home-directory ".gnus")
45 "Your Gnus Emacs-Lisp startup file name.
46 If a file with the `.el' or `.elc' suffixes exists, it will be read instead."
50 (defcustom gnus-site-init-file
52 (concat (file-name-directory
53 (directory-file-name installation-directory))
54 "site-lisp/gnus-init")
56 "The site-wide Gnus Emacs-Lisp startup file name, or nil if none.
57 If a file with the `.el' or `.elc' suffixes exists, it will be read instead."
59 :type '(choice file (const nil)))
61 (defcustom gnus-default-subscribed-newsgroups nil
62 "List of newsgroups to subscribe, when a user runs Gnus the first time.
63 The value should be a list of strings.
64 If it is t, Gnus will not do anything special the first time it is
65 started; it'll just use the normal newsgroups subscription methods."
67 :type '(choice (repeat string) (const :tag "Nothing special" t)))
69 (defcustom gnus-use-dribble-file t
70 "*Non-nil means that Gnus will use a dribble file to store user updates.
71 If Emacs should crash without saving the .newsrc files, complete
72 information can be restored from the dribble file."
73 :group 'gnus-dribble-file
76 (defcustom gnus-dribble-directory nil
77 "*The directory where dribble files will be saved.
78 If this variable is nil, the directory where the .newsrc files are
80 :group 'gnus-dribble-file
81 :type '(choice directory (const nil)))
83 (defcustom gnus-check-new-newsgroups 'ask-server
84 "*Non-nil means that Gnus will run `gnus-find-new-newsgroups' at startup.
85 This normally finds new newsgroups by comparing the active groups the
86 servers have already reported with those Gnus already knows, either alive
89 When any of the following are true, `gnus-find-new-newsgroups' will instead
90 ask the servers (primary, secondary, and archive servers) to list new
91 groups since the last time it checked:
92 1. This variable is `ask-server'.
93 2. This variable is a list of select methods (see below).
94 3. `gnus-read-active-file' is nil or `some'.
95 4. A prefix argument is given to `gnus-find-new-newsgroups' interactively.
97 Thus, if this variable is `ask-server' or a list of select methods or
98 `gnus-read-active-file' is nil or `some', then the killed list is no
99 longer necessary, so you could safely set `gnus-save-killed-list' to nil.
101 This variable can be a list of select methods which Gnus will query with
102 the `ask-server' method in addition to the primary, secondary, and archive
106 (setq gnus-check-new-newsgroups
107 '((nntp \"some.server\") (nntp \"other.server\")))
109 If this variable is nil, then you have to tell Gnus explicitly to
110 check for new newsgroups with \\<gnus-group-mode-map>\\[gnus-find-new-newsgroups]."
112 :type '(choice (const :tag "no" nil)
113 (const :tag "by brute force" t)
114 (const :tag "ask servers" ask-server)
115 (repeat :menu-tag "ask additional servers"
116 :tag "ask additional servers"
118 (sexp :format "%v"))))
120 (defcustom gnus-check-bogus-newsgroups nil
121 "*Non-nil means that Gnus will check and remove bogus newsgroup at startup.
122 If this variable is nil, then you have to tell Gnus explicitly to
123 check for bogus newsgroups with \\<gnus-group-mode-map>\\[gnus-group-check-bogus-groups]."
124 :group 'gnus-start-server
127 (defcustom gnus-read-active-file 'some
128 "*Non-nil means that Gnus will read the entire active file at startup.
129 If this variable is nil, Gnus will only know about the groups in your
132 If this variable is `some', Gnus will try to only read the relevant
133 parts of the active file from the server. Not all servers support
134 this, and it might be quite slow with other servers, but this should
135 generally be faster than both the t and nil value.
137 If you set this variable to nil or `some', you probably still want to
138 be told about new newsgroups that arrive. To do that, set
139 `gnus-check-new-newsgroups' to `ask-server'. This may not work
140 properly with all servers."
141 :group 'gnus-start-server
142 :type '(choice (const nil)
146 (defconst gnus-level-subscribed 5
147 "Groups with levels less than or equal to this variable are subscribed.")
149 (defconst gnus-level-unsubscribed 7
150 "Groups with levels less than or equal to this variable are unsubscribed.
151 Groups with levels less than `gnus-level-subscribed', which should be
152 less than this variable, are subscribed.")
154 (defconst gnus-level-zombie 8
155 "Groups with this level are zombie groups.")
157 (defconst gnus-level-killed 9
158 "Groups with this level are killed.")
160 (defcustom gnus-level-default-subscribed 3
161 "*New subscribed groups will be subscribed at this level."
162 :group 'gnus-group-levels
165 (defcustom gnus-level-default-unsubscribed 6
166 "*New unsubscribed groups will be unsubscribed at this level."
167 :group 'gnus-group-levels
170 (defcustom gnus-activate-level (1+ gnus-level-subscribed)
171 "*Groups higher than this level won't be activated on startup.
172 Setting this variable to something low might save lots of time when
173 you have many groups that you aren't interested in."
174 :group 'gnus-group-levels
177 (defcustom gnus-activate-foreign-newsgroups 4
178 "*If nil, Gnus will not check foreign newsgroups at startup.
179 If it is non-nil, it should be a number between one and nine. Foreign
180 newsgroups that have a level lower or equal to this number will be
181 activated on startup. For instance, if you want to active all
182 subscribed newsgroups, but not the rest, you'd set this variable to
183 `gnus-level-subscribed'.
185 If you subscribe to lots of newsgroups from different servers, startup
186 might take a while. By setting this variable to nil, you'll save time,
187 but you won't be told how many unread articles there are in the
189 :group 'gnus-group-levels
190 :type '(choice integer
191 (const :tag "none" nil)))
193 (defcustom gnus-read-newsrc-file t
194 "*Non-nil means that Gnus will read the `.newsrc' file.
195 Gnus always reads its own startup file, which is called
196 \".newsrc.eld\". The file called \".newsrc\" is in a format that can
197 be readily understood by other newsreaders. If you don't plan on
198 using other newsreaders, set this variable to nil to save some time on
204 (defcustom gnus-save-newsrc-file t
205 "*Non-nil means that Gnus will save the `.newsrc' file.
206 Gnus always saves its own startup file, which is called
207 \".newsrc.eld\". The file called \".newsrc\" is in a format that can
208 be readily understood by other newsreaders. If you don't plan on
209 using other newsreaders, set this variable to nil to save some time on
214 (defcustom gnus-save-killed-list t
215 "*If non-nil, save the list of killed groups to the startup file.
216 If you set this variable to nil, you'll save both time (when starting
217 and quitting) and space (both memory and disk), but it will also mean
218 that Gnus has no record of which groups are new and which are old, so
219 the automatic new newsgroups subscription methods become meaningless.
221 You should always set `gnus-check-new-newsgroups' to `ask-server' or
222 nil if you set this variable to nil.
224 This variable can also be a regexp. In that case, all groups that do
225 not match this regexp will be removed before saving the list."
229 (defcustom gnus-ignored-newsgroups
231 '("^to\\." ; not "real" groups
232 "^[0-9. \t]+ " ; all digits in name
233 "^[\"][]\"[#'()]" ; bogus characters
236 "*A regexp to match uninteresting newsgroups in the active file.
237 Any lines in the active file matching this regular expression are
238 removed from the newsgroup list before anything else is done to it,
239 thus making them effectively non-existent."
240 :group 'gnus-group-new
243 (defcustom gnus-subscribe-newsgroup-method 'gnus-subscribe-zombies
244 "*Function(s) called with a group name when new group is detected.
245 A few pre-made functions are supplied: `gnus-subscribe-randomly'
246 inserts new groups at the beginning of the list of groups;
247 `gnus-subscribe-alphabetically' inserts new groups in strict
248 alphabetic order; `gnus-subscribe-hierarchically' inserts new groups
249 in hierarchical newsgroup order; `gnus-subscribe-interactively' asks
250 for your decision; `gnus-subscribe-killed' kills all new groups;
251 `gnus-subscribe-zombies' will make all new groups into zombies;
252 `gnus-subscribe-topics' will enter groups into the topics that
254 :group 'gnus-group-new
255 :type '(radio (function-item gnus-subscribe-randomly)
256 (function-item gnus-subscribe-alphabetically)
257 (function-item gnus-subscribe-hierarchically)
258 (function-item gnus-subscribe-interactively)
259 (function-item gnus-subscribe-killed)
260 (function-item gnus-subscribe-zombies)
261 (function-item gnus-subscribe-topics)
265 (defcustom gnus-subscribe-options-newsgroup-method
266 'gnus-subscribe-alphabetically
267 "*Function(s) called to subscribe newsgroups mentioned on \"options -n\" lines.
268 If, for instance, you want to subscribe to all newsgroups in the
269 \"no\" and \"alt\" hierarchies, you'd put the following in your
272 options -n no.all alt.all
274 Gnus will the subscribe all new newsgroups in these hierarchies with
275 the subscription method in this variable."
276 :group 'gnus-group-new
277 :type '(radio (function-item gnus-subscribe-randomly)
278 (function-item gnus-subscribe-alphabetically)
279 (function-item gnus-subscribe-hierarchically)
280 (function-item gnus-subscribe-interactively)
281 (function-item gnus-subscribe-killed)
282 (function-item gnus-subscribe-zombies)
283 (function-item gnus-subscribe-topics)
287 (defcustom gnus-subscribe-hierarchical-interactive nil
288 "*If non-nil, Gnus will offer to subscribe hierarchically.
289 When a new hierarchy appears, Gnus will ask the user:
291 'alt.binaries': Do you want to subscribe to this hierarchy? ([d]ys):
293 If the user pressed `d', Gnus will descend the hierarchy, `y' will
294 subscribe to all newsgroups in the hierarchy and `s' will skip this
295 hierarchy in its entirety."
296 :group 'gnus-group-new
299 (defcustom gnus-auto-subscribed-groups
300 "nnml\\|^nnfolder\\|^nnmbox\\|^nnmh\\|^nnbabyl"
301 "*All new groups that match this regexp will be subscribed automatically.
302 Note that this variable only deals with new groups. It has no effect
303 whatsoever on old groups.
305 New groups that match this regexp will not be handled by
306 `gnus-subscribe-newsgroup-method'. Instead, they will
307 be subscribed using `gnus-subscribe-options-newsgroup-method'."
308 :group 'gnus-group-new
311 (defcustom gnus-options-subscribe nil
312 "*All new groups matching this regexp will be subscribed unconditionally.
313 Note that this variable deals only with new newsgroups. This variable
314 does not affect old newsgroups.
316 New groups that match this regexp will not be handled by
317 `gnus-subscribe-newsgroup-method'. Instead, they will
318 be subscribed using `gnus-subscribe-options-newsgroup-method'."
319 :group 'gnus-group-new
320 :type '(choice regexp
321 (const :tag "none" nil)))
323 (defcustom gnus-options-not-subscribe nil
324 "*All new groups matching this regexp will be ignored.
325 Note that this variable deals only with new newsgroups. This variable
326 does not affect old (already subscribed) newsgroups."
327 :group 'gnus-group-new
328 :type '(choice regexp
329 (const :tag "none" nil)))
331 (defcustom gnus-modtime-botch nil
332 "*Non-nil means .newsrc should be deleted prior to save.
333 Its use is due to the bogus appearance that .newsrc was modified on
338 (defcustom gnus-check-bogus-groups-hook nil
339 "A hook run after removing bogus groups."
340 :group 'gnus-start-server
343 (defcustom gnus-startup-hook nil
344 "A hook called at startup.
345 This hook is called after Gnus is connected to the NNTP server."
349 (defcustom gnus-before-startup-hook nil
350 "A hook called at before startup.
351 This hook is called as the first thing when Gnus is started."
355 (defcustom gnus-started-hook nil
356 "A hook called as the last thing after startup."
360 (defcustom gnus-setup-news-hook nil
361 "A hook after reading the .newsrc file, but before generating the buffer."
365 (defcustom gnus-get-new-news-hook nil
366 "A hook run just before Gnus checks for new news."
367 :group 'gnus-group-new
370 (defcustom gnus-after-getting-new-news-hook
371 '(gnus-display-time-event-handler)
372 "*A hook run after Gnus checks for new news when Gnus is already running."
373 :group 'gnus-group-new
376 (defcustom gnus-save-newsrc-hook nil
377 "A hook called before saving any of the newsrc files."
381 (defcustom gnus-save-quick-newsrc-hook nil
382 "A hook called just before saving the quick newsrc file.
383 Can be used to turn version control on or off."
387 (defcustom gnus-save-standard-newsrc-hook nil
388 "A hook called just before saving the standard newsrc file.
389 Can be used to turn version control on or off."
393 (defcustom gnus-always-read-dribble-file nil
394 "Unconditionally read the dribble file."
398 (defvar gnus-startup-file-coding-system 'binary
399 "*Coding system for startup file.")
401 ;;; Internal variables
403 (defvar gnus-newsrc-file-version nil)
404 (defvar gnus-override-subscribe-method nil)
405 (defvar gnus-dribble-buffer nil)
406 (defvar gnus-newsrc-options nil
407 "Options line in the .newsrc file.")
409 (defvar gnus-newsrc-options-n nil
410 "List of regexps representing groups to be subscribed/ignored unconditionally.")
412 (defvar gnus-newsrc-last-checked-date nil
413 "Date Gnus last asked server for new newsgroups.")
415 (defvar gnus-current-startup-file nil
416 "Startup file for the current host.")
418 ;; Byte-compiler warning.
419 (defvar gnus-group-line-format)
421 ;; Suggested by Brian Edmonds <edmonds@cs.ubc.ca>.
422 (defvar gnus-init-inhibit nil)
423 (defun gnus-read-init-file (&optional inhibit-next)
424 ;; Don't load .gnus if the -q option was used.
426 (if gnus-init-inhibit
427 (setq gnus-init-inhibit nil)
428 (setq gnus-init-inhibit inhibit-next)
429 (let ((files (list gnus-site-init-file gnus-init-file))
432 (and (setq file (pop files))
433 (or (and (file-exists-p file)
434 ;; Don't try to load a directory.
435 (not (file-directory-p file)))
436 (file-exists-p (concat file ".el"))
437 (file-exists-p (concat file ".elc")))
439 (let ((coding-system-for-read
440 gnus-startup-file-coding-system))
443 (error "Error in %s: %s" file var)))))))))
445 ;; For subscribing new newsgroup
447 (defun gnus-subscribe-hierarchical-interactive (groups)
448 (let ((groups (sort groups 'string<))
449 prefixes prefix start ans group starts)
451 (setq prefixes (list "^"))
452 (while (and groups prefixes)
453 (while (not (string-match (car prefixes) (car groups)))
454 (setq prefixes (cdr prefixes)))
455 (setq prefix (car prefixes))
456 (setq start (1- (length prefix)))
457 (if (and (string-match "[^\\.]\\." (car groups) start)
460 (concat "^" (substring (car groups) 0 (match-end 0))))
461 (string-match prefix (cadr groups)))
463 (push prefix prefixes)
464 (message "Descend hierarchy %s? ([y]nsq): "
465 (substring prefix 1 (1- (length prefix))))
466 (while (not (memq (setq ans (read-char-exclusive))
467 '(?y ?\n ?\r ?n ?s ?q)))
469 (message "Descend hierarchy %s? ([y]nsq): "
470 (substring prefix 1 (1- (length prefix)))))
474 (setq group (car groups))))
475 (push group gnus-killed-list)
476 (gnus-sethash group group gnus-killed-hashtb)
477 (setq groups (cdr groups)))
478 (setq starts (cdr starts)))
482 (setq group (car groups))))
483 (gnus-sethash group group gnus-killed-hashtb)
484 (gnus-subscribe-alphabetically (car groups))
485 (setq groups (cdr groups)))
486 (setq starts (cdr starts)))
489 (setq group (car groups))
490 (push group gnus-killed-list)
491 (gnus-sethash group group gnus-killed-hashtb)
492 (setq groups (cdr groups))))
494 (message "Subscribe %s? ([n]yq)" (car groups))
495 (while (not (memq (setq ans (read-char-exclusive))
496 '(?y ?\n ?\r ?q ?n)))
498 (message "Subscribe %s? ([n]yq)" (car groups)))
499 (setq group (car groups))
501 (gnus-subscribe-alphabetically (car groups))
502 (gnus-sethash group group gnus-killed-hashtb))
505 (setq group (car groups))
506 (push group gnus-killed-list)
507 (gnus-sethash group group gnus-killed-hashtb)
508 (setq groups (cdr groups))))
510 (push group gnus-killed-list)
511 (gnus-sethash group group gnus-killed-hashtb)))
512 (setq groups (cdr groups)))))))
514 (defun gnus-subscribe-randomly (newsgroup)
515 "Subscribe new NEWSGROUP by making it the first newsgroup."
516 (gnus-subscribe-newsgroup newsgroup))
518 (defun gnus-subscribe-alphabetically (newgroup)
519 "Subscribe new NEWSGROUP and insert it in alphabetical order."
520 (let ((groups (cdr gnus-newsrc-alist))
522 (while (and (not before) groups)
523 (if (string< newgroup (caar groups))
524 (setq before (caar groups))
525 (setq groups (cdr groups))))
526 (gnus-subscribe-newsgroup newgroup before)))
528 (defun gnus-subscribe-hierarchically (newgroup)
529 "Subscribe new NEWSGROUP and insert it in hierarchical newsgroup order."
530 ;; Basic ideas by mike-w@cs.aukuni.ac.nz (Mike Williams)
532 (set-buffer (nnheader-find-file-noselect gnus-current-startup-file))
534 (let ((groupkey newgroup) before)
535 (while (and (not before) groupkey)
536 (goto-char (point-min))
538 (concat "^\\(" (regexp-quote groupkey) ".*\\)[!:]")))
539 (while (and (re-search-forward groupkey-re nil t)
541 (setq before (match-string 1))
542 (string< before newgroup)))))
543 ;; Remove tail of newsgroup name (eg. a.b.c -> a.b)
545 (when (string-match "^\\(.*\\)\\.[^.]+$" groupkey)
546 (substring groupkey (match-beginning 1) (match-end 1)))))
547 (gnus-subscribe-newsgroup newgroup before))
548 (kill-buffer (current-buffer)))))
550 (defun gnus-subscribe-interactively (group)
551 "Subscribe the new GROUP interactively.
552 It is inserted in hierarchical newsgroup order if subscribed. If not,