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eec82323 | 1 | ;;; nnmh.el --- mhspool access for Gnus |
16409b0b | 2 | |
acaf905b | 3 | ;; Copyright (C) 1995-2012 Free Software Foundation, Inc. |
eec82323 | 4 | |
6748645f | 5 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> |
23f87bed | 6 | ;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet> |
eec82323 LMI |
7 | ;; Keywords: news, mail |
8 | ||
9 | ;; This file is part of GNU Emacs. | |
10 | ||
5e809f55 | 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
eec82323 | 12 | ;; it under the terms of the GNU General Public License as published by |
5e809f55 GM |
13 | ;; the Free Software Foundation, either version 3 of the License, or |
14 | ;; (at your option) any later version. | |
eec82323 LMI |
15 | |
16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
5e809f55 | 22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
eec82323 LMI |
23 | |
24 | ;;; Commentary: | |
25 | ||
26 | ;; Based on nnspool.el by Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>. | |
27 | ;; For an overview of what the interface functions do, please see the | |
28 | ;; Gnus sources. | |
29 | ||
30 | ;;; Code: | |
31 | ||
32 | (require 'nnheader) | |
33 | (require 'nnmail) | |
34 | (require 'gnus-start) | |
35 | (require 'nnoo) | |
349f4e97 | 36 | (eval-when-compile (require 'cl)) |
eec82323 LMI |
37 | |
38 | (nnoo-declare nnmh) | |
39 | ||
40 | (defvoo nnmh-directory message-directory | |
23f87bed | 41 | "Mail spool directory.") |
eec82323 LMI |
42 | |
43 | (defvoo nnmh-get-new-mail t | |
23f87bed | 44 | "If non-nil, nnmh will check the incoming mail file and split the mail.") |
eec82323 LMI |
45 | |
46 | (defvoo nnmh-prepare-save-mail-hook nil | |
23f87bed | 47 | "Hook run narrowed to an article before saving.") |
eec82323 LMI |
48 | |
49 | (defvoo nnmh-be-safe nil | |
23f87bed | 50 | "If non-nil, nnmh will check all articles to make sure whether they are new or not. |
16409b0b GM |
51 | Go through the .nnmh-articles file and compare with the actual |
52 | articles in this folder. The articles that are \"new\" will be marked | |
53 | as unread by Gnus.") | |
eec82323 LMI |
54 | |
55 | \f | |
56 | ||
57 | (defconst nnmh-version "nnmh 1.0" | |
58 | "nnmh version.") | |
59 | ||
60 | (defvoo nnmh-current-directory nil | |
61 | "Current news group directory.") | |
62 | ||
63 | (defvoo nnmh-status-string "") | |
64 | (defvoo nnmh-group-alist nil) | |
16409b0b GM |
65 | ;; Don't even think about setting this variable. It does not exist. |
66 | ;; Forget about it. Uh-huh. Nope. Nobody here. It's only bound | |
67 | ;; dynamically by certain functions in nndraft. | |
68 | (defvar nnmh-allow-delete-final nil) | |
eec82323 LMI |
69 | |
70 | \f | |
71 | ||
72 | ;;; Interface functions. | |
73 | ||
74 | (nnoo-define-basics nnmh) | |
75 | ||
76 | (deffoo nnmh-retrieve-headers (articles &optional newsgroup server fetch-old) | |
c9de7755 | 77 | (with-current-buffer nntp-server-buffer |
eec82323 LMI |
78 | (erase-buffer) |
79 | (let* ((file nil) | |
80 | (number (length articles)) | |
81 | (large (and (numberp nnmail-large-newsgroup) | |
82 | (> number nnmail-large-newsgroup))) | |
83 | (count 0) | |
16409b0b | 84 | (file-name-coding-system nnmail-pathname-coding-system) |
eec82323 LMI |
85 | beg article) |
86 | (nnmh-possibly-change-directory newsgroup server) | |
87 | ;; We don't support fetching by Message-ID. | |
88 | (if (stringp (car articles)) | |
89 | 'headers | |
90 | (while articles | |
91 | (when (and (file-exists-p | |
92 | (setq file (concat (file-name-as-directory | |
93 | nnmh-current-directory) | |
94 | (int-to-string | |
95 | (setq article (pop articles)))))) | |
96 | (not (file-directory-p file))) | |
97 | (insert (format "221 %d Article retrieved.\n" article)) | |
98 | (setq beg (point)) | |
99 | (nnheader-insert-head file) | |
100 | (goto-char beg) | |
101 | (if (search-forward "\n\n" nil t) | |
102 | (forward-char -1) | |
103 | (goto-char (point-max)) | |
104 | (insert "\n\n")) | |
105 | (insert ".\n") | |
106 | (delete-region (point) (point-max))) | |
107 | (setq count (1+ count)) | |
108 | ||
109 | (and large | |
110 | (zerop (% count 20)) | |
6748645f | 111 | (nnheader-message 5 "nnmh: Receiving headers... %d%%" |
16409b0b | 112 | (/ (* count 100) number)))) |
eec82323 LMI |
113 | |
114 | (when large | |
6748645f | 115 | (nnheader-message 5 "nnmh: Receiving headers...done")) |
eec82323 LMI |
116 | |
117 | (nnheader-fold-continuation-lines) | |
118 | 'headers)))) | |
119 | ||
120 | (deffoo nnmh-open-server (server &optional defs) | |
121 | (nnoo-change-server 'nnmh server defs) | |
122 | (when (not (file-exists-p nnmh-directory)) | |
123 | (condition-case () | |
124 | (make-directory nnmh-directory t) | |
125 | (error t))) | |
126 | (cond | |
127 | ((not (file-exists-p nnmh-directory)) | |
128 | (nnmh-close-server) | |
129 | (nnheader-report 'nnmh "Couldn't create directory: %s" nnmh-directory)) | |
130 | ((not (file-directory-p (file-truename nnmh-directory))) | |
131 | (nnmh-close-server) | |
132 | (nnheader-report 'nnmh "Not a directory: %s" nnmh-directory)) | |
133 | (t | |
134 | (nnheader-report 'nnmh "Opened server %s using directory %s" | |
135 | server nnmh-directory) | |
136 | t))) | |
137 | ||
138 | (deffoo nnmh-request-article (id &optional newsgroup server buffer) | |
139 | (nnmh-possibly-change-directory newsgroup server) | |
140 | (let ((file (if (stringp id) | |
141 | nil | |
142 | (concat nnmh-current-directory (int-to-string id)))) | |
16409b0b | 143 | (file-name-coding-system nnmail-pathname-coding-system) |
eec82323 LMI |
144 | (nntp-server-buffer (or buffer nntp-server-buffer))) |
145 | (and (stringp file) | |
146 | (file-exists-p file) | |
147 | (not (file-directory-p file)) | |
148 | (save-excursion (nnmail-find-file file)) | |
e9bd5782 | 149 | (string-to-number (file-name-nondirectory file))))) |
eec82323 | 150 | |
286c4fc2 | 151 | (deffoo nnmh-request-group (group &optional server dont-check info) |
6748645f LMI |
152 | (nnheader-init-server-buffer) |
153 | (nnmh-possibly-change-directory group server) | |
eec82323 | 154 | (let ((pathname (nnmail-group-pathname group nnmh-directory)) |
16409b0b | 155 | (file-name-coding-system nnmail-pathname-coding-system) |
eec82323 LMI |
156 | dir) |
157 | (cond | |
158 | ((not (file-directory-p pathname)) | |
159 | (nnheader-report | |
160 | 'nnmh "Can't select group (no such directory): %s" group)) | |
161 | (t | |
162 | (setq nnmh-current-directory pathname) | |
163 | (and nnmh-get-new-mail | |
164 | nnmh-be-safe | |
165 | (nnmh-update-gnus-unreads group)) | |
166 | (cond | |
167 | (dont-check | |
168 | (nnheader-report 'nnmh "Selected group %s" group) | |
169 | t) | |
170 | (t | |
171 | ;; Re-scan the directory if it's on a foreign system. | |
172 | (nnheader-re-read-dir pathname) | |
173 | (setq dir | |
174 | (sort | |
01c52d31 | 175 | (mapcar 'string-to-number |
eec82323 LMI |
176 | (directory-files pathname nil "^[0-9]+$" t)) |
177 | '<)) | |
16409b0b GM |
178 | (cond |
179 | (dir | |
180 | (setq nnmh-group-alist | |
181 | (delq (assoc group nnmh-group-alist) nnmh-group-alist)) | |
182 | (push (list group (cons (car dir) (car (last dir)))) | |
183 | nnmh-group-alist) | |
184 | (nnheader-report 'nnmh "Selected group %s" group) | |
185 | (nnheader-insert | |
186 | "211 %d %d %d %s\n" (length dir) (car dir) | |
187 | (car (last dir)) group)) | |
188 | (t | |
189 | (nnheader-report 'nnmh "Empty group %s" group) | |
190 | (nnheader-insert (format "211 0 1 0 %s\n" group)))))))))) | |
eec82323 LMI |
191 | |
192 | (deffoo nnmh-request-scan (&optional group server) | |
193 | (nnmail-get-new-mail 'nnmh nil nnmh-directory group)) | |
194 | ||
195 | (deffoo nnmh-request-list (&optional server dir) | |
196 | (nnheader-insert "") | |
6748645f | 197 | (nnmh-possibly-change-directory nil server) |
16409b0b GM |
198 | (let ((file-name-coding-system nnmail-pathname-coding-system) |
199 | (nnmh-toplev | |
200 | (file-truename (or dir (file-name-as-directory nnmh-directory))))) | |
eec82323 LMI |
201 | (nnmh-request-list-1 nnmh-toplev)) |
202 | (setq nnmh-group-alist (nnmail-get-active)) | |
203 | t) | |
204 | ||
205 | (defvar nnmh-toplev) | |
206 | (defun nnmh-request-list-1 (dir) | |
207 | (setq dir (expand-file-name dir)) | |
208 | ;; Recurse down all directories. | |
eecdcaf5 LMI |
209 | (let ((files (nnheader-directory-files dir t nil t)) |
210 | (max 0) | |
8737ef69 | 211 | min rdir num subdirectoriesp file) |
eec82323 | 212 | ;; Recurse down directories. |
732b9594 KY |
213 | (setq subdirectoriesp |
214 | ;; nth 1 of file-attributes always 1 on MS Windows :( | |
215 | (/= (nth 1 (file-attributes (file-truename dir))) 2)) | |
eecdcaf5 | 216 | (dolist (rdir files) |
8c3e17f8 LMI |
217 | (if (or (not subdirectoriesp) |
218 | (file-regular-p rdir)) | |
219 | (progn | |
220 | (setq file (file-name-nondirectory rdir)) | |
221 | (when (string-match "^[0-9]+$" file) | |
222 | (setq num (string-to-number file)) | |
223 | (setq max (max max num)) | |
224 | (when (or (null min) | |
225 | (< num min)) | |
226 | (setq min num)))) | |
227 | ;; This is a directory. | |
228 | (when (and (file-readable-p rdir) | |
229 | (not (equal (file-truename rdir) | |
230 | (file-truename dir)))) | |
231 | (nnmh-request-list-1 rdir)))) | |
eecdcaf5 LMI |
232 | ;; For each directory, generate an active file line. |
233 | (unless (string= (expand-file-name nnmh-toplev) dir) | |
2c8bcd54 LMI |
234 | (with-current-buffer nntp-server-buffer |
235 | (goto-char (point-max)) | |
236 | (insert | |
237 | (format | |
238 | "%s %.0f %.0f y\n" | |
239 | (progn | |
240 | (string-match | |
241 | (regexp-quote | |
242 | (file-truename (file-name-as-directory | |
243 | (expand-file-name nnmh-toplev)))) | |
244 | dir) | |
245 | (mm-string-to-multibyte ;Why? Isn't it multibyte already? | |
246 | (mm-encode-coding-string | |
247 | (nnheader-replace-chars-in-string | |
248 | (substring dir (match-end 0)) | |
249 | ?/ ?.) | |
250 | nnmail-pathname-coding-system))) | |
251 | (or max 0) | |
4469385c | 252 | (or min 1)))))) |
eec82323 LMI |
253 | t) |
254 | ||
255 | (deffoo nnmh-request-newgroups (date &optional server) | |
256 | (nnmh-request-list server)) | |
257 | ||
258 | (deffoo nnmh-request-expire-articles (articles newsgroup | |
259 | &optional server force) | |
260 | (nnmh-possibly-change-directory newsgroup server) | |
9b3ebcb6 | 261 | (let ((is-old t) |
9b3ebcb6 | 262 | article rest mod-time) |
6748645f | 263 | (nnheader-init-server-buffer) |
eec82323 LMI |
264 | |
265 | (while (and articles is-old) | |
266 | (setq article (concat nnmh-current-directory | |
267 | (int-to-string (car articles)))) | |
268 | (when (setq mod-time (nth 5 (file-attributes article))) | |
269 | (if (and (nnmh-deletable-article-p newsgroup (car articles)) | |
270 | (setq is-old | |
271 | (nnmail-expired-article-p newsgroup mod-time force))) | |
272 | (progn | |
0d972486 SZ |
273 | ;; Allow a special target group. -- jcn |
274 | (unless (eq nnmail-expiry-target 'delete) | |
275 | (with-temp-buffer | |
276 | (nnmh-request-article (car articles) | |
277 | newsgroup server (current-buffer)) | |
278 | (nnmail-expiry-target-group | |
279 | nnmail-expiry-target newsgroup))) | |
eec82323 LMI |
280 | (nnheader-message 5 "Deleting article %s in %s..." |
281 | article newsgroup) | |
282 | (condition-case () | |
283 | (funcall nnmail-delete-file-function article) | |
284 | (file-error | |
285 | (nnheader-message 1 "Couldn't delete article %s in %s" | |
286 | article newsgroup) | |
287 | (push (car articles) rest)))) | |
288 | (push (car articles) rest))) | |
289 | (setq articles (cdr articles))) | |
6748645f | 290 | (nnheader-message 5 "") |
eec82323 LMI |
291 | (nconc rest articles))) |
292 | ||
293 | (deffoo nnmh-close-group (group &optional server) | |
294 | t) | |
295 | ||
c9fc72fa | 296 | (deffoo nnmh-request-move-article (article group server accept-form |
01c52d31 | 297 | &optional last move-is-internal) |
eec82323 LMI |
298 | (let ((buf (get-buffer-create " *nnmh move*")) |
299 | result) | |
300 | (and | |
301 | (nnmh-deletable-article-p group article) | |
302 | (nnmh-request-article article group server) | |
c9de7755 | 303 | (with-current-buffer buf |
eec82323 LMI |
304 | (erase-buffer) |
305 | (insert-buffer-substring nntp-server-buffer) | |
306 | (setq result (eval accept-form)) | |
307 | (kill-buffer (current-buffer)) | |
308 | result) | |
309 | (progn | |
310 | (nnmh-possibly-change-directory group server) | |
311 | (condition-case () | |
312 | (funcall nnmail-delete-file-function | |
313 | (concat nnmh-current-directory (int-to-string article))) | |
314 | (file-error nil)))) | |
315 | result)) | |
316 | ||
317 | (deffoo nnmh-request-accept-article (group &optional server last noinsert) | |
318 | (nnmh-possibly-change-directory group server) | |
319 | (nnmail-check-syntax) | |
320 | (when nnmail-cache-accepted-message-ids | |
c9fc72fa | 321 | (nnmail-cache-insert (nnmail-fetch-field "message-id") |
23f87bed MB |
322 | group |
323 | (nnmail-fetch-field "subject") | |
324 | (nnmail-fetch-field "from"))) | |
6748645f | 325 | (nnheader-init-server-buffer) |
eec82323 LMI |
326 | (prog1 |
327 | (if (stringp group) | |
6748645f LMI |
328 | (if noinsert |
329 | (nnmh-active-number group) | |
330 | (car (nnmh-save-mail | |
331 | (list (cons group (nnmh-active-number group))) | |
332 | noinsert))) | |
333 | (let ((res (nnmail-article-group 'nnmh-active-number))) | |
334 | (if (and (null res) | |
335 | (yes-or-no-p "Moved to `junk' group; delete article? ")) | |
336 | 'junk | |
337 | (car (nnmh-save-mail res noinsert))))) | |
eec82323 LMI |
338 | (when (and last nnmail-cache-accepted-message-ids) |
339 | (nnmail-cache-close)))) | |
340 | ||
341 | (deffoo nnmh-request-replace-article (article group buffer) | |
342 | (nnmh-possibly-change-directory group) | |
c9de7755 | 343 | (with-current-buffer buffer |
eec82323 LMI |
344 | (nnmh-possibly-create-directory group) |
345 | (ignore-errors | |
346 | (nnmail-write-region | |
347 | (point-min) (point-max) | |
348 | (concat nnmh-current-directory (int-to-string article)) | |
349 | nil (if (nnheader-be-verbose 5) nil 'nomesg)) | |
350 | t))) | |
351 | ||
352 | (deffoo nnmh-request-create-group (group &optional server args) | |
6748645f | 353 | (nnheader-init-server-buffer) |
eec82323 LMI |
354 | (unless (assoc group nnmh-group-alist) |
355 | (let (active) | |
356 | (push (list group (setq active (cons 1 0))) | |
357 | nnmh-group-alist) | |
358 | (nnmh-possibly-create-directory group) | |
359 | (nnmh-possibly-change-directory group server) | |
01c52d31 MB |
360 | (let ((articles (mapcar 'string-to-number |
361 | (directory-files | |
362 | nnmh-current-directory nil "^[0-9]+$")))) | |
eec82323 LMI |
363 | (when articles |
364 | (setcar active (apply 'min articles)) | |
365 | (setcdr active (apply 'max articles)))))) | |
366 | t) | |
367 | ||
368 | (deffoo nnmh-request-delete-group (group &optional force server) | |
369 | (nnmh-possibly-change-directory group server) | |
370 | ;; Delete all articles in GROUP. | |
371 | (if (not force) | |
372 | () ; Don't delete the articles. | |
373 | (let ((articles (directory-files nnmh-current-directory t "^[0-9]+$"))) | |
374 | (while articles | |
375 | (when (file-writable-p (car articles)) | |
376 | (nnheader-message 5 "Deleting article %s in %s..." | |
377 | (car articles) group) | |
378 | (funcall nnmail-delete-file-function (car articles))) | |
379 | (setq articles (cdr articles)))) | |
380 | ;; Try to delete the directory itself. | |
381 | (ignore-errors | |
382 | (delete-directory nnmh-current-directory))) | |
383 | ;; Remove the group from all structures. | |
384 | (setq nnmh-group-alist | |
385 | (delq (assoc group nnmh-group-alist) nnmh-group-alist) | |
386 | nnmh-current-directory nil) | |
387 | t) | |
388 | ||
389 | (deffoo nnmh-request-rename-group (group new-name &optional server) | |
390 | (nnmh-possibly-change-directory group server) | |
391 | (let ((new-dir (nnmail-group-pathname new-name nnmh-directory)) | |
392 | (old-dir (nnmail-group-pathname group nnmh-directory))) | |
393 | (when (ignore-errors | |
394 | (make-directory new-dir t) | |
395 | t) | |
396 | ;; We move the articles file by file instead of renaming | |
397 | ;; the directory -- there may be subgroups in this group. | |
398 | ;; One might be more clever, I guess. | |
399 | (let ((files (nnheader-article-to-file-alist old-dir))) | |
400 | (while files | |
401 | (rename-file | |
402 | (concat old-dir (cdar files)) | |
403 | (concat new-dir (cdar files))) | |
404 | (pop files))) | |
405 | (when (<= (length (directory-files old-dir)) 2) | |
406 | (ignore-errors | |
407 | (delete-directory old-dir))) | |
408 | ;; That went ok, so we change the internal structures. | |
409 | (let ((entry (assoc group nnmh-group-alist))) | |
410 | (when entry | |
411 | (setcar entry new-name)) | |
412 | (setq nnmh-current-directory nil) | |
413 | t)))) | |
414 | ||
415 | (nnoo-define-skeleton nnmh) | |
416 | ||
417 | \f | |
418 | ;;; Internal functions. | |
419 | ||
420 | (defun nnmh-possibly-change-directory (newsgroup &optional server) | |
421 | (when (and server | |
422 | (not (nnmh-server-opened server))) | |
423 | (nnmh-open-server server)) | |
424 | (when newsgroup | |
a8a90155 | 425 | (let ((pathname (nnmail-group-pathname newsgroup nnmh-directory)) |
16409b0b | 426 | (file-name-coding-system nnmail-pathname-coding-system)) |
eec82323 LMI |
427 | (if (file-directory-p pathname) |
428 | (setq nnmh-current-directory pathname) | |
23f87bed | 429 | (nnheader-report 'nnmh "Not a directory: %s" nnmh-directory))))) |
eec82323 LMI |
430 | |
431 | (defun nnmh-possibly-create-directory (group) | |
432 | (let (dir dirs) | |
433 | (setq dir (nnmail-group-pathname group nnmh-directory)) | |
434 | (while (not (file-directory-p dir)) | |
435 | (push dir dirs) | |
436 | (setq dir (file-name-directory (directory-file-name dir)))) | |
437 | (while dirs | |
438 | (when (make-directory (directory-file-name (car dirs))) | |
439 | (error "Could not create directory %s" (car dirs))) | |
440 | (nnheader-message 5 "Creating mail directory %s" (car dirs)) | |
441 | (setq dirs (cdr dirs))))) | |
442 | ||
443 | (defun nnmh-save-mail (group-art &optional noinsert) | |
444 | "Called narrowed to an article." | |
445 | (unless noinsert | |
446 | (nnmail-insert-lines) | |
447 | (nnmail-insert-xref group-art)) | |
448 | (run-hooks 'nnmail-prepare-save-mail-hook) | |
449 | (run-hooks 'nnmh-prepare-save-mail-hook) | |
450 | (goto-char (point-min)) | |
451 | (while (looking-at "From ") | |
452 | (replace-match "X-From-Line: ") | |
453 | (forward-line 1)) | |
454 | ;; We save the article in all the newsgroups it belongs in. | |
455 | (let ((ga group-art) | |
456 | first) | |
457 | (while ga | |
458 | (nnmh-possibly-create-directory (caar ga)) | |
459 | (let ((file (concat (nnmail-group-pathname | |
460 | (caar ga) nnmh-directory) | |
461 | (int-to-string (cdar ga))))) | |
462 | (if first | |
463 | ;; It was already saved, so we just make a hard link. | |
464 | (funcall nnmail-crosspost-link-function first file t) | |
465 | ;; Save the article. | |
466 | (nnmail-write-region (point-min) (point-max) file nil nil) | |
467 | (setq first file))) | |
468 | (setq ga (cdr ga)))) | |
469 | group-art) | |
470 | ||
471 | (defun nnmh-active-number (group) | |
472 | "Compute the next article number in GROUP." | |
473 | (let ((active (cadr (assoc group nnmh-group-alist))) | |
a8a90155 | 474 | (dir (nnmail-group-pathname group nnmh-directory)) |
16409b0b GM |
475 | (file-name-coding-system nnmail-pathname-coding-system) |
476 | file) | |
eec82323 LMI |
477 | (unless active |
478 | ;; The group wasn't known to nnmh, so we just create an active | |
479 | ;; entry for it. | |
480 | (setq active (cons 1 0)) | |
481 | (push (list group active) nnmh-group-alist) | |
482 | (unless (file-exists-p dir) | |
6748645f | 483 | (gnus-make-directory dir)) |
eec82323 LMI |
484 | ;; Find the highest number in the group. |
485 | (let ((files (sort | |
01c52d31 MB |
486 | (mapcar 'string-to-number |
487 | (directory-files dir nil "^[0-9]+$")) | |
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488 | '>))) |
489 | (when files | |
490 | (setcdr active (car files))))) | |
491 | (setcdr active (1+ (cdr active))) | |
16409b0b GM |
492 | (while (or |
493 | ;; See whether the file exists... | |
494 | (file-exists-p | |
495 | (setq file (concat (nnmail-group-pathname group nnmh-directory) | |
496 | (int-to-string (cdr active))))) | |
497 | ;; ... or there is a buffer that will make that file exist | |
498 | ;; in the future. | |
499 | (get-file-buffer file)) | |
500 | ;; Skip past that file. | |
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501 | (setcdr active (1+ (cdr active)))) |
502 | (cdr active))) | |
503 | ||
504 | (defun nnmh-update-gnus-unreads (group) | |
505 | ;; Go through the .nnmh-articles file and compare with the actual | |
506 | ;; articles in this folder. The articles that are "new" will be | |
507 | ;; marked as unread by Gnus. | |
508 | (let* ((dir nnmh-current-directory) | |
01c52d31 | 509 | (files (sort (mapcar 'string-to-number |
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510 | (directory-files nnmh-current-directory |
511 | nil "^[0-9]+$" t)) | |
512 | '<)) | |
513 | (nnmh-file (concat dir ".nnmh-articles")) | |
514 | new articles) | |
515 | ;; Load the .nnmh-articles file. | |
516 | (when (file-exists-p nnmh-file) | |
517 | (setq articles | |
518 | (let (nnmh-newsgroup-articles) | |
519 | (ignore-errors (load nnmh-file nil t t)) | |
520 | nnmh-newsgroup-articles))) | |
521 | ;; Add all new articles to the `new' list. | |
522 | (let ((art files)) | |
523 | (while art | |
524 | (unless (assq (car art) articles) | |
525 | (push (car art) new)) | |
526 | (setq art (cdr art)))) | |
527 | ;; Remove all deleted articles. | |
528 | (let ((art articles)) | |
529 | (while art | |
530 | (unless (memq (caar art) files) | |
531 | (setq articles (delq (car art) articles))) | |
532 | (setq art (cdr art)))) | |
533 | ;; Check whether the articles really are the ones that Gnus thinks | |
534 | ;; they are by looking at the time-stamps. | |
535 | (let ((arts articles) | |
536 | art) | |
537 | (while (setq art (pop arts)) | |
538 | (when (not (equal | |
539 | (nth 5 (file-attributes | |
540 | (concat dir (int-to-string (car art))))) | |
541 | (cdr art))) | |
542 | (setq articles (delq art articles)) | |
543 | (push (car art) new)))) | |
544 | ;; Go through all the new articles and add them, and their | |
545 | ;; time-stamps, to the list. | |
546 | (setq articles | |
547 | (nconc articles | |
548 | (mapcar | |
549 | (lambda (art) | |
550 | (cons art | |
551 | (nth 5 (file-attributes | |
552 | (concat dir (int-to-string art)))))) | |
553 | new))) | |
554 | ;; Make Gnus mark all new articles as unread. | |
555 | (when new | |
556 | (gnus-make-articles-unread | |
557 | (gnus-group-prefixed-name group (list 'nnmh "")) | |
558 | (setq new (sort new '<)))) | |
559 | ;; Sort the article list with highest numbers first. | |
560 | (setq articles (sort articles (lambda (art1 art2) | |
561 | (> (car art1) (car art2))))) | |
562 | ;; Finally write this list back to the .nnmh-articles file. | |
16409b0b | 563 | (with-temp-file nnmh-file |
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564 | (insert ";; Gnus article active file for " group "\n\n") |
565 | (insert "(setq nnmh-newsgroup-articles '") | |
566 | (gnus-prin1 articles) | |
567 | (insert ")\n")))) | |
568 | ||
569 | (defun nnmh-deletable-article-p (group article) | |
570 | "Say whether ARTICLE in GROUP can be deleted." | |
571 | (let ((path (concat nnmh-current-directory (int-to-string article)))) | |
572 | ;; Writable. | |
573 | (and (file-writable-p path) | |
6748645f LMI |
574 | (or |
575 | ;; We can never delete the last article in the group. | |
576 | (not (eq (cdr (nth 1 (assoc group nnmh-group-alist))) | |
577 | article)) | |
578 | ;; Well, we can. | |
579 | nnmh-allow-delete-final)))) | |
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580 | |
581 | (provide 'nnmh) | |
582 | ||
583 | ;;; nnmh.el ends here |