1 ;;; elmo-maildir.el -- Maildir interface for ELMO.
3 ;; Copyright 1998,1999,2000 Yuuichi Teranishi <teranisi@gohome.org>
5 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
6 ;; Keywords: mail, net news
8 ;; This file is part of ELMO (Elisp Library for Message Orchestration).
10 ;; This program 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 ;; This program 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.
32 (eval-when-compile (require 'cl))
34 (require 'elmo-localdir)
36 (defvar elmo-maildir-sequence-number-internal 0
37 "Sequence number for the pid part of unique filename.
38 This variable should not be used in elsewhere.")
40 (defsubst elmo-maildir-get-folder-directory (spec)
41 (if (file-name-absolute-p (nth 1 spec))
42 (nth 1 spec) ; already full path.
43 (expand-file-name (nth 1 spec)
44 elmo-maildir-folder-path)))
46 (defun elmo-maildir-number-to-filename (dir number loc-alist)
47 (let ((location (cdr (assq number loc-alist))))
48 (and location (elmo-maildir-get-filename location dir))))
50 (defun elmo-maildir-get-filename (location dir)
51 "Get a filename that is corresponded to LOCATION in DIR."
53 (let ((file (file-name-completion (symbol-name location)
54 (expand-file-name "cur" dir))))
55 (if (eq file t) location file))
56 (expand-file-name "cur" dir)))
58 (defsubst elmo-maildir-list-location (dir &optional child-dir)
59 (let* ((cur-dir (expand-file-name (or child-dir "cur") dir))
60 (cur (directory-files cur-dir
62 seen-list seen sym list)
66 (if (string-match "^\\([^:]+\\):\\([^:]+\\)$" x)
72 (elmo-match-string 2 x))
74 (setq sym (intern (elmo-match-string 1 x)))
76 (setq seen-list (cons sym seen-list)))
80 (cons list seen-list)))
82 (defun elmo-maildir-msgdb-create-entity (dir number loc-alist)
83 (elmo-localdir-msgdb-create-overview-entity-from-file
85 (elmo-maildir-number-to-filename dir number loc-alist)))
87 (defun elmo-maildir-cleanup-temporal (dir)
88 ;; Delete files in the tmp dir which are not accessed
89 ;; for more than 36 hours.
90 (let ((cur-time (current-time))
95 (setq last-accessed (nth 4 (file-attributes file)))
96 (when (or (> (- (car cur-time)(car last-accessed)) 1)
97 (and (eq (- (car cur-time)(car last-accessed)) 1)
98 (> (- (cadr cur-time)(cadr last-accessed))
100 (message "Maildir: %d tmp file(s) are cleared."
101 (setq count (1+ count)))
102 (delete-file file))))
103 (directory-files (expand-file-name "tmp" dir)
107 (defun elmo-maildir-update-current (spec)
108 "Move all new msgs to cur in the maildir"
109 (let* ((maildir (elmo-maildir-get-folder-directory spec))
110 (news (directory-files (expand-file-name "new"
114 ;; cleanup tmp directory.
115 (elmo-maildir-cleanup-temporal maildir)
116 ;; move new msgs to cur directory.
119 (expand-file-name x (expand-file-name "new" maildir))
120 (expand-file-name (concat x ":2,")
121 (expand-file-name "cur" maildir))))
124 (defun elmo-maildir-set-mark (filename mark)
125 "Mark the file in the maildir. MARK is a character."
126 (if (string-match "^\\([^:]+:2,\\)\\(.*\\)$" filename)
127 (let ((flaglist (string-to-char-list (elmo-match-string
129 (unless (memq mark flaglist)
130 (setq flaglist (sort (cons mark flaglist) '<))
131 (rename-file filename
132 (concat (elmo-match-string 1 filename)
133 (char-list-to-string flaglist)))))))
135 (defun elmo-maildir-delete-mark (filename mark)
136 "Mark the file in the maildir. MARK is a character."
137 (if (string-match "^\\([^:]+:2,\\)\\(.*\\)$" filename)
138 (let ((flaglist (string-to-char-list (elmo-match-string
140 (when (memq mark flaglist)
141 (setq flaglist (delq mark flaglist))
142 (rename-file filename
143 (concat (elmo-match-string 1 filename)
145 (char-list-to-string flaglist))))))))
147 (defsubst elmo-maildir-set-mark-msgs (spec mark msgs msgdb)
148 (let ((dir (elmo-maildir-get-folder-directory spec))
150 (elmo-msgdb-get-location msgdb)
151 (elmo-msgdb-location-load (elmo-msgdb-expand-path nil spec))))
154 (if (setq file (elmo-maildir-number-to-filename dir (car msgs) locs))
155 (elmo-maildir-set-mark file mark))
156 (setq msgs (cdr msgs)))))
158 (defsubst elmo-maildir-delete-mark-msgs (spec mark msgs msgdb)
159 (let ((dir (elmo-maildir-get-folder-directory spec))
161 (elmo-msgdb-get-location msgdb)
162 (elmo-msgdb-location-load (elmo-msgdb-expand-path nil spec))))
165 (if (setq file (elmo-maildir-number-to-filename dir (car msgs) locs))
166 (elmo-maildir-delete-mark file mark))
167 (setq msgs (cdr msgs)))))
169 (defun elmo-maildir-mark-as-important (spec msgs &optional msgdb)
170 (elmo-maildir-set-mark-msgs spec ?F msgs msgdb))
172 (defun elmo-maildir-unmark-important (spec msgs &optional msgdb)
173 (elmo-maildir-delete-mark-msgs spec ?F msgs msgdb))
175 (defun elmo-maildir-mark-as-read (spec msgs &optional msgdb)
176 (elmo-maildir-set-mark-msgs spec ?S msgs msgdb))
178 (defun elmo-maildir-mark-as-unread (spec msgs &optional msgdb)
179 (elmo-maildir-delete-mark-msgs spec ?S msgs msgdb))
181 (defun elmo-maildir-msgdb-create (spec numlist new-mark
182 already-mark seen-mark
187 (let* ((dir (elmo-maildir-get-folder-directory spec))
188 (loc-alist (if msgdb (elmo-msgdb-get-location msgdb)
189 (elmo-msgdb-location-load (elmo-msgdb-expand-path
191 (loc-seen (elmo-maildir-list-location dir))
192 (loc-list (car loc-seen))
193 (seen-list (cdr loc-seen))
194 overview number-alist mark-alist entity
195 i percent num location pair)
196 (setq num (length numlist))
198 (message "Creating msgdb...")
201 (elmo-maildir-msgdb-create-entity
202 dir (car numlist) loc-alist))
206 (elmo-msgdb-append-element
209 (elmo-msgdb-number-add number-alist
210 (elmo-msgdb-overview-entity-get-number
212 (elmo-msgdb-overview-entity-get-id
214 (setq location (cdr (assq (car numlist) loc-alist)))
215 (unless (member location seen-list)
217 (elmo-msgdb-mark-append
219 (elmo-msgdb-overview-entity-get-number
221 (or (elmo-msgdb-global-mark-get
222 (elmo-msgdb-overview-entity-get-id
226 (setq percent (/ (* i 100) num))
227 (elmo-display-progress
228 'elmo-maildir-msgdb-create "Creating msgdb..."
230 (setq numlist (cdr numlist)))
231 (message "Creating msgdb...done.")
232 (elmo-msgdb-sort-by-date
233 (list overview number-alist mark-alist loc-alist)))))
235 (defalias 'elmo-maildir-msgdb-create-as-numlist 'elmo-maildir-msgdb-create)
237 (defun elmo-maildir-list-folders (spec &optional hierarchy)
238 (let ((elmo-localdir-folder-path elmo-maildir-folder-path)
239 (elmo-localdir-list-folders-spec-string ".")
240 (elmo-localdir-list-folders-filter-regexp
241 "^\\(\\.\\.?\\|cur\\|tmp\\|new\\)$")
242 elmo-have-link-count folders)
243 (setq folders (elmo-localdir-list-folders spec hierarchy))
244 (if (eq (length (nth 1 spec)) 0) ; top
245 (setq folders (append
246 (list (concat elmo-localdir-list-folders-spec-string
250 (function (lambda (folder)
251 (not (or (listp folder) (elmo-folder-exists-p folder)))))
255 ((>= emacs-major-version 19)
256 (defun elmo-maildir-make-unique-string ()
257 "This function generates a string that can be used as a unique
258 file name for maildir directories."
259 (let ((cur-time (current-time)))
260 (format "%.0f.%d_%d.%s"
262 (float 65536)) (cadr cur-time))
264 (incf elmo-maildir-sequence-number-internal)
266 ((eq emacs-major-version 18)
267 ;; A fake function for v18
268 (defun elmo-maildir-make-unique-string ()
269 "This function generates a string that can be used as a unique
270 file name for maildir directories."
271 (unless (fboundp 'float-to-string)
272 (load-library "float"))
273 (let ((time (current-time)))
277 (f+ (f* (f (car time))
282 (% (abs (random t)) 10000); dummy pid
285 (defun elmo-maildir-temporal-filename (basedir)
286 (let ((filename (expand-file-name
287 (concat "tmp/" (elmo-maildir-make-unique-string))
289 (unless (file-exists-p (file-name-directory filename))
290 (make-directory (file-name-directory filename)))
291 (while (file-exists-p filename)
292 ;; (sleep-for 2) ; I don't want to wait.
295 (concat "tmp/" (elmo-maildir-make-unique-string))
299 (defun elmo-maildir-append-msg (spec string &optional msg no-see)
300 (let ((basedir (elmo-maildir-get-folder-directory spec))
304 (setq filename (elmo-maildir-temporal-filename basedir))
306 (as-binary-output-file
307 (write-region (point-min) (point-max) filename nil 'no-msg))
308 ;; add link from new.
309 (elmo-add-name-to-file
312 (concat "new/" (file-name-nondirectory filename))
315 ;; If an error occured, return nil.
318 (defun elmo-maildir-delete-msg (spec number loc-alist)
319 (let ((dir (elmo-maildir-get-folder-directory spec))
321 (setq file (elmo-maildir-number-to-filename dir number loc-alist))
322 (if (and (file-writable-p file)
323 (not (file-directory-p file)))
324 (progn (delete-file file)
327 (defun elmo-maildir-read-msg (spec number outbuf &optional msgdb)
329 (let* ((loc-alist (if msgdb (elmo-msgdb-get-location msgdb)
330 (elmo-msgdb-location-load (elmo-msgdb-expand-path
332 (dir (elmo-maildir-get-folder-directory spec))
333 (file (elmo-maildir-number-to-filename dir number loc-alist)))
336 (when (file-exists-p file)
337 (as-binary-input-file (insert-file-contents file))
338 (elmo-delete-cr-get-content-type)))))
340 (defun elmo-maildir-delete-msgs (spec msgs &optional msgdb)
341 (let ((loc-alist (if msgdb (elmo-msgdb-get-location msgdb)
342 (elmo-msgdb-location-load (elmo-msgdb-expand-path
344 (mapcar '(lambda (msg) (elmo-maildir-delete-msg spec msg
348 (defsubst elmo-maildir-list-folder-subr (spec &optional nonsort)
349 (let* ((dir (elmo-maildir-get-folder-directory spec))
350 (flist (elmo-list-folder-by-location
352 (car (elmo-maildir-list-location dir))))
353 (news (car (elmo-maildir-list-location dir "new"))))
355 (cons (+ (or (elmo-max-of-list flist) 0) (length news))
356 (+ (length flist) (length news)))
359 (defun elmo-maildir-list-folder (spec)
360 (elmo-maildir-update-current spec)
361 (elmo-maildir-list-folder-subr spec))
363 (defun elmo-maildir-max-of-folder (spec)
364 (elmo-maildir-list-folder-subr spec t))
366 (defalias 'elmo-maildir-check-validity 'elmo-localdir-check-validity)
368 (defalias 'elmo-maildir-sync-validity 'elmo-localdir-sync-validity)
370 (defun elmo-maildir-folder-exists-p (spec)
371 (let ((basedir (elmo-maildir-get-folder-directory spec)))
372 (and (file-directory-p (expand-file-name "new" basedir))
373 (file-directory-p (expand-file-name "cur" basedir))
374 (file-directory-p (expand-file-name "tmp" basedir)))))
376 (defun elmo-maildir-folder-creatable-p (spec)
379 (defun elmo-maildir-create-folder (spec)
380 (let ((basedir (elmo-maildir-get-folder-directory spec)))
383 (mapcar (function (lambda (dir)
384 (setq dir (expand-file-name dir basedir))
385 (or (file-directory-p dir)
387 (elmo-make-directory dir)
388 (set-file-modes dir 448)))))
389 '("." "new" "cur" "tmp"))
393 (defun elmo-maildir-delete-folder (spec)
394 (let ((basedir (elmo-maildir-get-folder-directory spec)))
396 (let ((tmp-files (directory-files
397 (expand-file-name "tmp" basedir)
399 ;; Delete files in tmp.
400 (and tmp-files (mapcar 'delete-file tmp-files))
404 (setq dir (expand-file-name dir basedir))
405 (if (not (file-directory-p dir))
407 (elmo-delete-directory dir t))))
408 '("new" "cur" "tmp" "."))
412 (defun elmo-maildir-search (spec condition &optional from-msgs msgdb)
414 (let* ((msgs (or from-msgs (elmo-maildir-list-folder spec)))
415 (loc-alist (if msgdb (elmo-msgdb-get-location msgdb)
416 (elmo-msgdb-location-load (elmo-msgdb-expand-path
418 (dir (elmo-maildir-get-folder-directory spec))
420 case-fold-search ret-val
425 (setq msg-num (car msgs))
426 (if (elmo-file-field-condition-match
427 (elmo-maildir-number-to-filename
428 dir (car msgs) loc-alist)
430 (setq ret-val (append ret-val (list msg-num))))
432 (setq percent (/ (* i 100) num))
433 (elmo-display-progress
434 'elmo-maildir-search "Searching..."
436 (setq msgs (cdr msgs)))
439 ;;; (maildir) -> maildir
440 (defun elmo-maildir-copy-msgs (dst-spec msgs src-spec
441 &optional loc-alist same-number)
445 (elmo-maildir-get-msg-filename src-spec (car msgs) loc-alist))
451 (file-name-nondirectory srcfile)
452 (concat (elmo-maildir-get-folder-directory dst-spec) "/cur")))
453 (setq msgs (cdr msgs))))
456 (defun elmo-maildir-use-cache-p (spec number)
459 (defun elmo-maildir-local-file-p (spec number)
462 (defun elmo-maildir-get-msg-filename (spec number &optional loc-alist)
463 (elmo-maildir-number-to-filename
464 (elmo-maildir-get-folder-directory spec)
465 number (or loc-alist (elmo-msgdb-location-load
466 (elmo-msgdb-expand-path
469 (defalias 'elmo-maildir-sync-number-alist
470 'elmo-generic-sync-number-alist)
471 (defalias 'elmo-maildir-list-folder-unread
472 'elmo-generic-list-folder-unread)
473 (defalias 'elmo-maildir-list-folder-important
474 'elmo-generic-list-folder-important)
476 (provide 'elmo-maildir)
478 ;;; elmo-maildir.el ends here