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eec82323 | 1 | ;;; nnmh.el --- mhspool access for Gnus |
16409b0b | 2 | |
83ec6f20 | 3 | ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002 |
16409b0b | 4 | ;; Free Software Foundation, Inc. |
eec82323 | 5 | |
6748645f | 6 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> |
eec82323 LMI |
7 | ;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet> |
8 | ;; Keywords: news, mail | |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
13 | ;; it under the terms of the GNU General Public License as published by | |
14 | ;; the Free Software Foundation; either version 2, or (at your option) | |
15 | ;; any later version. | |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
24 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
25 | ;; Boston, MA 02111-1307, USA. | |
26 | ||
27 | ;;; Commentary: | |
28 | ||
29 | ;; Based on nnspool.el by Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>. | |
30 | ;; For an overview of what the interface functions do, please see the | |
31 | ;; Gnus sources. | |
32 | ||
33 | ;;; Code: | |
34 | ||
35 | (require 'nnheader) | |
36 | (require 'nnmail) | |
37 | (require 'gnus-start) | |
38 | (require 'nnoo) | |
349f4e97 | 39 | (eval-when-compile (require 'cl)) |
eec82323 LMI |
40 | |
41 | (nnoo-declare nnmh) | |
42 | ||
43 | (defvoo nnmh-directory message-directory | |
44 | "*Mail spool directory.") | |
45 | ||
46 | (defvoo nnmh-get-new-mail t | |
47 | "*If non-nil, nnmh will check the incoming mail file and split the mail.") | |
48 | ||
49 | (defvoo nnmh-prepare-save-mail-hook nil | |
50 | "*Hook run narrowed to an article before saving.") | |
51 | ||
52 | (defvoo nnmh-be-safe nil | |
16409b0b GM |
53 | "*If non-nil, nnmh will check all articles to make sure whether they are new or not. |
54 | Go through the .nnmh-articles file and compare with the actual | |
55 | articles in this folder. The articles that are \"new\" will be marked | |
56 | as unread by Gnus.") | |
eec82323 LMI |
57 | |
58 | \f | |
59 | ||
60 | (defconst nnmh-version "nnmh 1.0" | |
61 | "nnmh version.") | |
62 | ||
63 | (defvoo nnmh-current-directory nil | |
64 | "Current news group directory.") | |
65 | ||
66 | (defvoo nnmh-status-string "") | |
67 | (defvoo nnmh-group-alist nil) | |
16409b0b GM |
68 | ;; Don't even think about setting this variable. It does not exist. |
69 | ;; Forget about it. Uh-huh. Nope. Nobody here. It's only bound | |
70 | ;; dynamically by certain functions in nndraft. | |
71 | (defvar nnmh-allow-delete-final nil) | |
eec82323 LMI |
72 | |
73 | \f | |
74 | ||
75 | ;;; Interface functions. | |
76 | ||
77 | (nnoo-define-basics nnmh) | |
78 | ||
79 | (deffoo nnmh-retrieve-headers (articles &optional newsgroup server fetch-old) | |
80 | (save-excursion | |
81 | (set-buffer nntp-server-buffer) | |
82 | (erase-buffer) | |
83 | (let* ((file nil) | |
84 | (number (length articles)) | |
85 | (large (and (numberp nnmail-large-newsgroup) | |
86 | (> number nnmail-large-newsgroup))) | |
87 | (count 0) | |
16409b0b | 88 | (file-name-coding-system nnmail-pathname-coding-system) |
eec82323 LMI |
89 | beg article) |
90 | (nnmh-possibly-change-directory newsgroup server) | |
91 | ;; We don't support fetching by Message-ID. | |
92 | (if (stringp (car articles)) | |
93 | 'headers | |
94 | (while articles | |
95 | (when (and (file-exists-p | |
96 | (setq file (concat (file-name-as-directory | |
97 | nnmh-current-directory) | |
98 | (int-to-string | |
99 | (setq article (pop articles)))))) | |
100 | (not (file-directory-p file))) | |
101 | (insert (format "221 %d Article retrieved.\n" article)) | |
102 | (setq beg (point)) | |
103 | (nnheader-insert-head file) | |
104 | (goto-char beg) | |
105 | (if (search-forward "\n\n" nil t) | |
106 | (forward-char -1) | |
107 | (goto-char (point-max)) | |
108 | (insert "\n\n")) | |
109 | (insert ".\n") | |
110 | (delete-region (point) (point-max))) | |
111 | (setq count (1+ count)) | |
112 | ||
113 | (and large | |
114 | (zerop (% count 20)) | |
6748645f | 115 | (nnheader-message 5 "nnmh: Receiving headers... %d%%" |
16409b0b | 116 | (/ (* count 100) number)))) |
eec82323 LMI |
117 | |
118 | (when large | |
6748645f | 119 | (nnheader-message 5 "nnmh: Receiving headers...done")) |
eec82323 LMI |
120 | |
121 | (nnheader-fold-continuation-lines) | |
122 | 'headers)))) | |
123 | ||
124 | (deffoo nnmh-open-server (server &optional defs) | |
125 | (nnoo-change-server 'nnmh server defs) | |
126 | (when (not (file-exists-p nnmh-directory)) | |
127 | (condition-case () | |
128 | (make-directory nnmh-directory t) | |
129 | (error t))) | |
130 | (cond | |
131 | ((not (file-exists-p nnmh-directory)) | |
132 | (nnmh-close-server) | |
133 | (nnheader-report 'nnmh "Couldn't create directory: %s" nnmh-directory)) | |
134 | ((not (file-directory-p (file-truename nnmh-directory))) | |
135 | (nnmh-close-server) | |
136 | (nnheader-report 'nnmh "Not a directory: %s" nnmh-directory)) | |
137 | (t | |
138 | (nnheader-report 'nnmh "Opened server %s using directory %s" | |
139 | server nnmh-directory) | |
140 | t))) | |
141 | ||
142 | (deffoo nnmh-request-article (id &optional newsgroup server buffer) | |
143 | (nnmh-possibly-change-directory newsgroup server) | |
144 | (let ((file (if (stringp id) | |
145 | nil | |
146 | (concat nnmh-current-directory (int-to-string id)))) | |
16409b0b | 147 | (file-name-coding-system nnmail-pathname-coding-system) |
eec82323 LMI |
148 | (nntp-server-buffer (or buffer nntp-server-buffer))) |
149 | (and (stringp file) | |
150 | (file-exists-p file) | |
151 | (not (file-directory-p file)) | |
152 | (save-excursion (nnmail-find-file file)) | |
153 | (string-to-int (file-name-nondirectory file))))) | |
154 | ||
155 | (deffoo nnmh-request-group (group &optional server dont-check) | |
6748645f LMI |
156 | (nnheader-init-server-buffer) |
157 | (nnmh-possibly-change-directory group server) | |
eec82323 | 158 | (let ((pathname (nnmail-group-pathname group nnmh-directory)) |
16409b0b | 159 | (file-name-coding-system nnmail-pathname-coding-system) |
eec82323 LMI |
160 | dir) |
161 | (cond | |
162 | ((not (file-directory-p pathname)) | |
163 | (nnheader-report | |
164 | 'nnmh "Can't select group (no such directory): %s" group)) | |
165 | (t | |
166 | (setq nnmh-current-directory pathname) | |
167 | (and nnmh-get-new-mail | |
168 | nnmh-be-safe | |
169 | (nnmh-update-gnus-unreads group)) | |
170 | (cond | |
171 | (dont-check | |
172 | (nnheader-report 'nnmh "Selected group %s" group) | |
173 | t) | |
174 | (t | |
175 | ;; Re-scan the directory if it's on a foreign system. | |
176 | (nnheader-re-read-dir pathname) | |
177 | (setq dir | |
178 | (sort | |
179 | (mapcar (lambda (name) (string-to-int name)) | |
180 | (directory-files pathname nil "^[0-9]+$" t)) | |
181 | '<)) | |
16409b0b GM |
182 | (cond |
183 | (dir | |
184 | (setq nnmh-group-alist | |
185 | (delq (assoc group nnmh-group-alist) nnmh-group-alist)) | |
186 | (push (list group (cons (car dir) (car (last dir)))) | |
187 | nnmh-group-alist) | |
188 | (nnheader-report 'nnmh "Selected group %s" group) | |
189 | (nnheader-insert | |
190 | "211 %d %d %d %s\n" (length dir) (car dir) | |
191 | (car (last dir)) group)) | |
192 | (t | |
193 | (nnheader-report 'nnmh "Empty group %s" group) | |
194 | (nnheader-insert (format "211 0 1 0 %s\n" group)))))))))) | |
eec82323 LMI |
195 | |
196 | (deffoo nnmh-request-scan (&optional group server) | |
197 | (nnmail-get-new-mail 'nnmh nil nnmh-directory group)) | |
198 | ||
199 | (deffoo nnmh-request-list (&optional server dir) | |
200 | (nnheader-insert "") | |
6748645f | 201 | (nnmh-possibly-change-directory nil server) |
16409b0b GM |
202 | (let ((file-name-coding-system nnmail-pathname-coding-system) |
203 | (nnmh-toplev | |
204 | (file-truename (or dir (file-name-as-directory nnmh-directory))))) | |
eec82323 LMI |
205 | (nnmh-request-list-1 nnmh-toplev)) |
206 | (setq nnmh-group-alist (nnmail-get-active)) | |
207 | t) | |
208 | ||
209 | (defvar nnmh-toplev) | |
210 | (defun nnmh-request-list-1 (dir) | |
211 | (setq dir (expand-file-name dir)) | |
212 | ;; Recurse down all directories. | |
213 | (let ((dirs (and (file-readable-p dir) | |
214 | (> (nth 1 (file-attributes (file-chase-links dir))) 2) | |
6748645f LMI |
215 | (nnheader-directory-files dir t nil t))) |
216 | rdir) | |
eec82323 | 217 | ;; Recurse down directories. |
6748645f LMI |
218 | (while (setq rdir (pop dirs)) |
219 | (when (and (file-directory-p rdir) | |
220 | (file-readable-p rdir) | |
221 | (not (equal (file-truename rdir) | |
222 | (file-truename dir)))) | |
223 | (nnmh-request-list-1 rdir)))) | |
eec82323 LMI |
224 | ;; For each directory, generate an active file line. |
225 | (unless (string= (expand-file-name nnmh-toplev) dir) | |
226 | (let ((files (mapcar | |
227 | (lambda (name) (string-to-int name)) | |
228 | (directory-files dir nil "^[0-9]+$" t)))) | |
229 | (when files | |
230 | (save-excursion | |
231 | (set-buffer nntp-server-buffer) | |
232 | (goto-char (point-max)) | |
233 | (insert | |
234 | (format | |
83ec6f20 | 235 | "%s %.0f %.0f y\n" |
eec82323 LMI |
236 | (progn |
237 | (string-match | |
238 | (regexp-quote | |
239 | (file-truename (file-name-as-directory | |
240 | (expand-file-name nnmh-toplev)))) | |
241 | dir) | |
242 | (nnheader-replace-chars-in-string | |
16409b0b GM |
243 | (mm-decode-coding-string (substring dir (match-end 0)) |
244 | nnmail-pathname-coding-system) | |
a8a90155 | 245 | ?/ ?.)) |
eec82323 LMI |
246 | (apply 'max files) |
247 | (apply 'min files))))))) | |
248 | t) | |
249 | ||
250 | (deffoo nnmh-request-newgroups (date &optional server) | |
251 | (nnmh-request-list server)) | |
252 | ||
253 | (deffoo nnmh-request-expire-articles (articles newsgroup | |
254 | &optional server force) | |
255 | (nnmh-possibly-change-directory newsgroup server) | |
6748645f | 256 | (let* ((is-old t) |
eec82323 | 257 | article rest mod-time) |
6748645f | 258 | (nnheader-init-server-buffer) |
eec82323 LMI |
259 | |
260 | (while (and articles is-old) | |
261 | (setq article (concat nnmh-current-directory | |
262 | (int-to-string (car articles)))) | |
263 | (when (setq mod-time (nth 5 (file-attributes article))) | |
264 | (if (and (nnmh-deletable-article-p newsgroup (car articles)) | |
265 | (setq is-old | |
266 | (nnmail-expired-article-p newsgroup mod-time force))) | |
267 | (progn | |
268 | (nnheader-message 5 "Deleting article %s in %s..." | |
269 | article newsgroup) | |
270 | (condition-case () | |
271 | (funcall nnmail-delete-file-function article) | |
272 | (file-error | |
273 | (nnheader-message 1 "Couldn't delete article %s in %s" | |
274 | article newsgroup) | |
275 | (push (car articles) rest)))) | |
276 | (push (car articles) rest))) | |
277 | (setq articles (cdr articles))) | |
6748645f | 278 | (nnheader-message 5 "") |
eec82323 LMI |
279 | (nconc rest articles))) |
280 | ||
281 | (deffoo nnmh-close-group (group &optional server) | |
282 | t) | |
283 | ||
284 | (deffoo nnmh-request-move-article | |
16409b0b | 285 | (article group server accept-form &optional last) |
eec82323 LMI |
286 | (let ((buf (get-buffer-create " *nnmh move*")) |
287 | result) | |
288 | (and | |
289 | (nnmh-deletable-article-p group article) | |
290 | (nnmh-request-article article group server) | |
291 | (save-excursion | |
292 | (set-buffer buf) | |
293 | (erase-buffer) | |
294 | (insert-buffer-substring nntp-server-buffer) | |
295 | (setq result (eval accept-form)) | |
296 | (kill-buffer (current-buffer)) | |
297 | result) | |
298 | (progn | |
299 | (nnmh-possibly-change-directory group server) | |
300 | (condition-case () | |
301 | (funcall nnmail-delete-file-function | |
302 | (concat nnmh-current-directory (int-to-string article))) | |
303 | (file-error nil)))) | |
304 | result)) | |
305 | ||
306 | (deffoo nnmh-request-accept-article (group &optional server last noinsert) | |
307 | (nnmh-possibly-change-directory group server) | |
308 | (nnmail-check-syntax) | |
309 | (when nnmail-cache-accepted-message-ids | |
310 | (nnmail-cache-insert (nnmail-fetch-field "message-id"))) | |
6748645f | 311 | (nnheader-init-server-buffer) |
eec82323 LMI |
312 | (prog1 |
313 | (if (stringp group) | |
6748645f LMI |
314 | (if noinsert |
315 | (nnmh-active-number group) | |
316 | (car (nnmh-save-mail | |
317 | (list (cons group (nnmh-active-number group))) | |
318 | noinsert))) | |
319 | (let ((res (nnmail-article-group 'nnmh-active-number))) | |
320 | (if (and (null res) | |
321 | (yes-or-no-p "Moved to `junk' group; delete article? ")) | |
322 | 'junk | |
323 | (car (nnmh-save-mail res noinsert))))) | |
eec82323 LMI |
324 | (when (and last nnmail-cache-accepted-message-ids) |
325 | (nnmail-cache-close)))) | |
326 | ||
327 | (deffoo nnmh-request-replace-article (article group buffer) | |
328 | (nnmh-possibly-change-directory group) | |
329 | (save-excursion | |
330 | (set-buffer buffer) | |
331 | (nnmh-possibly-create-directory group) | |
332 | (ignore-errors | |
333 | (nnmail-write-region | |
334 | (point-min) (point-max) | |
335 | (concat nnmh-current-directory (int-to-string article)) | |
336 | nil (if (nnheader-be-verbose 5) nil 'nomesg)) | |
337 | t))) | |
338 | ||
339 | (deffoo nnmh-request-create-group (group &optional server args) | |
6748645f | 340 | (nnheader-init-server-buffer) |
eec82323 LMI |
341 | (unless (assoc group nnmh-group-alist) |
342 | (let (active) | |
343 | (push (list group (setq active (cons 1 0))) | |
344 | nnmh-group-alist) | |
345 | (nnmh-possibly-create-directory group) | |
346 | (nnmh-possibly-change-directory group server) | |
347 | (let ((articles (mapcar | |
348 | (lambda (file) | |
349 | (string-to-int file)) | |
350 | (directory-files | |
351 | nnmh-current-directory nil "^[0-9]+$")))) | |
352 | (when articles | |
353 | (setcar active (apply 'min articles)) | |
354 | (setcdr active (apply 'max articles)))))) | |
355 | t) | |
356 | ||
357 | (deffoo nnmh-request-delete-group (group &optional force server) | |
358 | (nnmh-possibly-change-directory group server) | |
359 | ;; Delete all articles in GROUP. | |
360 | (if (not force) | |
361 | () ; Don't delete the articles. | |
362 | (let ((articles (directory-files nnmh-current-directory t "^[0-9]+$"))) | |
363 | (while articles | |
364 | (when (file-writable-p (car articles)) | |
365 | (nnheader-message 5 "Deleting article %s in %s..." | |
366 | (car articles) group) | |
367 | (funcall nnmail-delete-file-function (car articles))) | |
368 | (setq articles (cdr articles)))) | |
369 | ;; Try to delete the directory itself. | |
370 | (ignore-errors | |
371 | (delete-directory nnmh-current-directory))) | |
372 | ;; Remove the group from all structures. | |
373 | (setq nnmh-group-alist | |
374 | (delq (assoc group nnmh-group-alist) nnmh-group-alist) | |
375 | nnmh-current-directory nil) | |
376 | t) | |
377 | ||
378 | (deffoo nnmh-request-rename-group (group new-name &optional server) | |
379 | (nnmh-possibly-change-directory group server) | |
380 | (let ((new-dir (nnmail-group-pathname new-name nnmh-directory)) | |
381 | (old-dir (nnmail-group-pathname group nnmh-directory))) | |
382 | (when (ignore-errors | |
383 | (make-directory new-dir t) | |
384 | t) | |
385 | ;; We move the articles file by file instead of renaming | |
386 | ;; the directory -- there may be subgroups in this group. | |
387 | ;; One might be more clever, I guess. | |
388 | (let ((files (nnheader-article-to-file-alist old-dir))) | |
389 | (while files | |
390 | (rename-file | |
391 | (concat old-dir (cdar files)) | |
392 | (concat new-dir (cdar files))) | |
393 | (pop files))) | |
394 | (when (<= (length (directory-files old-dir)) 2) | |
395 | (ignore-errors | |
396 | (delete-directory old-dir))) | |
397 | ;; That went ok, so we change the internal structures. | |
398 | (let ((entry (assoc group nnmh-group-alist))) | |
399 | (when entry | |
400 | (setcar entry new-name)) | |
401 | (setq nnmh-current-directory nil) | |
402 | t)))) | |
403 | ||
404 | (nnoo-define-skeleton nnmh) | |
405 | ||
406 | \f | |
407 | ;;; Internal functions. | |
408 | ||
409 | (defun nnmh-possibly-change-directory (newsgroup &optional server) | |
410 | (when (and server | |
411 | (not (nnmh-server-opened server))) | |
412 | (nnmh-open-server server)) | |
413 | (when newsgroup | |
a8a90155 | 414 | (let ((pathname (nnmail-group-pathname newsgroup nnmh-directory)) |
16409b0b | 415 | (file-name-coding-system nnmail-pathname-coding-system)) |
eec82323 LMI |
416 | (if (file-directory-p pathname) |
417 | (setq nnmh-current-directory pathname) | |
418 | (error "No such newsgroup: %s" newsgroup))))) | |
419 | ||
420 | (defun nnmh-possibly-create-directory (group) | |
421 | (let (dir dirs) | |
422 | (setq dir (nnmail-group-pathname group nnmh-directory)) | |
423 | (while (not (file-directory-p dir)) | |
424 | (push dir dirs) | |
425 | (setq dir (file-name-directory (directory-file-name dir)))) | |
426 | (while dirs | |
427 | (when (make-directory (directory-file-name (car dirs))) | |
428 | (error "Could not create directory %s" (car dirs))) | |
429 | (nnheader-message 5 "Creating mail directory %s" (car dirs)) | |
430 | (setq dirs (cdr dirs))))) | |
431 | ||
432 | (defun nnmh-save-mail (group-art &optional noinsert) | |
433 | "Called narrowed to an article." | |
434 | (unless noinsert | |
435 | (nnmail-insert-lines) | |
436 | (nnmail-insert-xref group-art)) | |
437 | (run-hooks 'nnmail-prepare-save-mail-hook) | |
438 | (run-hooks 'nnmh-prepare-save-mail-hook) | |
439 | (goto-char (point-min)) | |
440 | (while (looking-at "From ") | |
441 | (replace-match "X-From-Line: ") | |
442 | (forward-line 1)) | |
443 | ;; We save the article in all the newsgroups it belongs in. | |
444 | (let ((ga group-art) | |
445 | first) | |
446 | (while ga | |
447 | (nnmh-possibly-create-directory (caar ga)) | |
448 | (let ((file (concat (nnmail-group-pathname | |
449 | (caar ga) nnmh-directory) | |
450 | (int-to-string (cdar ga))))) | |
451 | (if first | |
452 | ;; It was already saved, so we just make a hard link. | |
453 | (funcall nnmail-crosspost-link-function first file t) | |
454 | ;; Save the article. | |
455 | (nnmail-write-region (point-min) (point-max) file nil nil) | |
456 | (setq first file))) | |
457 | (setq ga (cdr ga)))) | |
458 | group-art) | |
459 | ||
460 | (defun nnmh-active-number (group) | |
461 | "Compute the next article number in GROUP." | |
462 | (let ((active (cadr (assoc group nnmh-group-alist))) | |
a8a90155 | 463 | (dir (nnmail-group-pathname group nnmh-directory)) |
16409b0b GM |
464 | (file-name-coding-system nnmail-pathname-coding-system) |
465 | file) | |
eec82323 LMI |
466 | (unless active |
467 | ;; The group wasn't known to nnmh, so we just create an active | |
468 | ;; entry for it. | |
469 | (setq active (cons 1 0)) | |
470 | (push (list group active) nnmh-group-alist) | |
471 | (unless (file-exists-p dir) | |
6748645f | 472 | (gnus-make-directory dir)) |
eec82323 LMI |
473 | ;; Find the highest number in the group. |
474 | (let ((files (sort | |
475 | (mapcar | |
476 | (lambda (f) | |
477 | (string-to-int f)) | |
478 | (directory-files dir nil "^[0-9]+$")) | |
479 | '>))) | |
480 | (when files | |
481 | (setcdr active (car files))))) | |
482 | (setcdr active (1+ (cdr active))) | |
16409b0b GM |
483 | (while (or |
484 | ;; See whether the file exists... | |
485 | (file-exists-p | |
486 | (setq file (concat (nnmail-group-pathname group nnmh-directory) | |
487 | (int-to-string (cdr active))))) | |
488 | ;; ... or there is a buffer that will make that file exist | |
489 | ;; in the future. | |
490 | (get-file-buffer file)) | |
491 | ;; Skip past that file. | |
eec82323 LMI |
492 | (setcdr active (1+ (cdr active)))) |
493 | (cdr active))) | |
494 | ||
495 | (defun nnmh-update-gnus-unreads (group) | |
496 | ;; Go through the .nnmh-articles file and compare with the actual | |
497 | ;; articles in this folder. The articles that are "new" will be | |
498 | ;; marked as unread by Gnus. | |
499 | (let* ((dir nnmh-current-directory) | |
500 | (files (sort (mapcar (function (lambda (name) (string-to-int name))) | |
501 | (directory-files nnmh-current-directory | |
502 | nil "^[0-9]+$" t)) | |
503 | '<)) | |
504 | (nnmh-file (concat dir ".nnmh-articles")) | |
505 | new articles) | |
506 | ;; Load the .nnmh-articles file. | |
507 | (when (file-exists-p nnmh-file) | |
508 | (setq articles | |
509 | (let (nnmh-newsgroup-articles) | |
510 | (ignore-errors (load nnmh-file nil t t)) | |
511 | nnmh-newsgroup-articles))) | |
512 | ;; Add all new articles to the `new' list. | |
513 | (let ((art files)) | |
514 | (while art | |
515 | (unless (assq (car art) articles) | |
516 | (push (car art) new)) | |
517 | (setq art (cdr art)))) | |
518 | ;; Remove all deleted articles. | |
519 | (let ((art articles)) | |
520 | (while art | |
521 | (unless (memq (caar art) files) | |
522 | (setq articles (delq (car art) articles))) | |
523 | (setq art (cdr art)))) | |
524 | ;; Check whether the articles really are the ones that Gnus thinks | |
525 | ;; they are by looking at the time-stamps. | |
526 | (let ((arts articles) | |
527 | art) | |
528 | (while (setq art (pop arts)) | |
529 | (when (not (equal | |
530 | (nth 5 (file-attributes | |
531 | (concat dir (int-to-string (car art))))) | |
532 | (cdr art))) | |
533 | (setq articles (delq art articles)) | |
534 | (push (car art) new)))) | |
535 | ;; Go through all the new articles and add them, and their | |
536 | ;; time-stamps, to the list. | |
537 | (setq articles | |
538 | (nconc articles | |
539 | (mapcar | |
540 | (lambda (art) | |
541 | (cons art | |
542 | (nth 5 (file-attributes | |
543 | (concat dir (int-to-string art)))))) | |
544 | new))) | |
545 | ;; Make Gnus mark all new articles as unread. | |
546 | (when new | |
547 | (gnus-make-articles-unread | |
548 | (gnus-group-prefixed-name group (list 'nnmh "")) | |
549 | (setq new (sort new '<)))) | |
550 | ;; Sort the article list with highest numbers first. | |
551 | (setq articles (sort articles (lambda (art1 art2) | |
552 | (> (car art1) (car art2))))) | |
553 | ;; Finally write this list back to the .nnmh-articles file. | |
16409b0b | 554 | (with-temp-file nnmh-file |
eec82323 LMI |
555 | (insert ";; Gnus article active file for " group "\n\n") |
556 | (insert "(setq nnmh-newsgroup-articles '") | |
557 | (gnus-prin1 articles) | |
558 | (insert ")\n")))) | |
559 | ||
560 | (defun nnmh-deletable-article-p (group article) | |
561 | "Say whether ARTICLE in GROUP can be deleted." | |
562 | (let ((path (concat nnmh-current-directory (int-to-string article)))) | |
563 | ;; Writable. | |
564 | (and (file-writable-p path) | |
6748645f LMI |
565 | (or |
566 | ;; We can never delete the last article in the group. | |
567 | (not (eq (cdr (nth 1 (assoc group nnmh-group-alist))) | |
568 | article)) | |
569 | ;; Well, we can. | |
570 | nnmh-allow-delete-final)))) | |
eec82323 LMI |
571 | |
572 | (provide 'nnmh) | |
573 | ||
574 | ;;; nnmh.el ends here |