1 ;;; gnus-namazu.el --- Search mail with Namazu -*- coding: iso-2022-7bit; -*-
3 ;; Copyright (C) 2000, 2001, 2002, 2003, 2004
4 ;; TSUCHIYA Masatoshi <tsuchiya@namazu.org>
6 ;; Author: TSUCHIYA Masatoshi <tsuchiya@namazu.org>
7 ;; Keywords: mail searching namazu
9 ;; This program is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; This program is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with this program; if not, you can either send email to this
21 ;; program's maintainer or write to: The Free Software Foundation,
22 ;; Inc.; 59 Temple Place, Suite 330; Boston, MA 02111-1307, USA.
27 ;; This file defines the command to search mails and persistent
28 ;; articles with Namazu and to browse its results with Gnus.
30 ;; Namazu is a full-text search engine intended for easy use. For
31 ;; more detail about Namazu, visit the following page:
38 ;; If this module has already been installed, only four steps are
39 ;; required to search articles with this module.
41 ;; (1) Install Namazu.
43 ;; (2) Put this expression into your ~/.gnus.
45 ;; (gnus-namazu-insinuate)
47 ;; (3) Start Gnus and type M-x gnus-namazu-create-index RET to make
50 ;; (4) In group buffer or in summary buffer, type C-c C-n query RET.
55 ;; Before installing this module, you must install Namazu.
57 ;; When you would like to byte-compile this module in Gnus, put this
58 ;; file into the lisp/ directory in the Gnus source tree and run `make
59 ;; install'. And then, put the following expression into your
62 ;; (gnus-namazu-insinuate)
64 ;; In order to make index of articles with Namazu before using this
65 ;; module, type M-x gnus-namazu-create-index RET. Otherwise, you can
66 ;; create index by yourself with the following commands:
68 ;; % mkdir ~/News/namazu
69 ;; % mknmz -a -h -O ~/News/namazu ~/Mail ~/News/cache
71 ;; The first command makes the directory for index files, and the
72 ;; second command generates index files of mails and persistent
75 ;; In order to update indices for incoming articles, this module
76 ;; automatically runs mknmz, the indexer of Namazu, at an interval of
77 ;; 3 days; this period is set to `gnus-namazu-index-update-interval'.
79 ;; Indices will be updated when `gnus-namazu-search' is called. If
80 ;; you want to update indices everywhen Gnus is started, you can put
81 ;; the following expression to your ~/.gnus.
83 ;; (add-hook 'gnus-startup-hook 'gnus-namazu-update-all-indices)
85 ;; In order to control mknmz closely, disable the automatic updating
86 ;; feature and run mknmz by yourself. In this case, set nil to the
89 ;; (setq gnus-namazu-index-update-interval nil)
91 ;; When your index is put into the directory other than the default
92 ;; one (~/News/namazu), it is necessary to set its place to
93 ;; `gnus-namazu-index-directories' as follows:
95 ;; (setq gnus-namazu-index-directories
96 ;; (list (expand-file-name "~/namazu")))
101 (eval-when-compile (require 'cl))
107 ;; To suppress byte-compile warning.
109 (defvar nnml-directory)
110 (defvar nnmh-directory))
113 (defgroup gnus-namazu nil
114 "Search nnmh and nnml groups in Gnus with Namazu."
117 :prefix "gnus-namazu-")
119 (defconst gnus-namazu-default-index-directory
120 (expand-file-name "namazu" gnus-directory)
121 "Default place of Namazu index files.")
123 (defcustom gnus-namazu-index-directories
125 (or (and (boundp 'gnus-namazu-index-directory)
126 (symbol-value 'gnus-namazu-index-directory))
127 (and (boundp 'nnir-namazu-index-directory)
128 (symbol-value 'nnir-namazu-index-directory))
129 gnus-namazu-default-index-directory))
130 "*Places of Namazu index files."
131 :type '(repeat directory)
134 (defcustom gnus-namazu-command
135 (or (and (boundp 'namazu-command)
136 (symbol-value 'namazu-command))
137 (and (boundp 'nnir-namazu-program)
138 (symbol-value 'nnir-namazu-program))
140 "*Name of the executable file of Namazu."
144 (defcustom gnus-namazu-command-prefix nil
145 "*Prefix commands to execute Namazu.
146 If you put your index on a remote server, set this option as follows:
148 (setq gnus-namazu-command-prefix
149 '(\"ssh\" \"-x\" \"remote-server\"))
151 This makes gnus-namazu execute \"ssh -x remote-server namazu ...\"
152 instead of executing \"namazu\" directly."
153 :type '(repeat string)
156 (defcustom gnus-namazu-additional-arguments nil
157 "*Additional arguments of Namazu.
158 The options `-q', `-a', and `-l' are always used, very few other
159 options make any sense in this context."
160 :type '(repeat string)
163 (defcustom gnus-namazu-index-update-interval
164 259200 ; 3 days == 259200 seconds.
165 "*Number of seconds between running the indexer of Namazu."
166 :type '(choice (const :tag "Never run the indexer" nil)
167 (integer :tag "Number of seconds"))
170 (defcustom gnus-namazu-make-index-command "mknmz"
171 "*Name of the executable file of the indexer of Namazu."
175 (defcustom gnus-namazu-make-index-arguments
177 (list "--all" "--mailnews" "--deny=^.*[^0-9].*$")
178 (when (and (boundp 'current-language-environment)
180 (symbol-value 'current-language-environment)))
181 (list "--indexing-lang=ja")))
182 "*Arguments of the indexer of Namazu."
183 :type '(repeat string)
186 (defcustom gnus-namazu-field-keywords
187 '("date" "from" "newsgroups" "size" "subject" "summary" "to" "uri")
188 "*List of keywords to do field-search."
189 :type '(repeat string)
192 (defcustom gnus-namazu-coding-system
193 (if (memq system-type '(windows-nt OS/2 emx))
196 "*Coding system for Namazu process."
200 (defcustom gnus-namazu-need-path-normalization
201 (and (memq system-type '(windows-nt OS/2 emx)) t)
202 "*Non-nil means that outputs of namazu may contain drive letters."
206 (defcustom gnus-namazu-case-sensitive-filesystem
207 (not (eq system-type 'windows-nt))
208 "*Non-nil means that the using file system distinguishes cases of characters."
212 (defcustom gnus-namazu-query-highlight t
213 "Non-nil means that queried words is highlighted."
217 (defface gnus-namazu-query-highlight-face
218 '((((type tty pc) (class color))
219 (:background "magenta4" :foreground "cyan1"))
220 (((class color) (background light))
221 (:background "magenta4" :foreground "lightskyblue1"))
222 (((class color) (background dark))
223 (:background "palevioletred2" :foreground "brown4"))
224 (t (:inverse-video t)))
225 "Face used for namazu query matching words."
228 (defcustom gnus-namazu-remote-groups nil
229 "*Alist of regular expressions matching remote groups and their base paths.
230 If you use an IMAP server and have a special index, set this option as
233 (setq gnus-namazu-remote-groups
234 '((\"^nnimap\\\\+server:INBOX\\\\.\" . \"~/Maildir/.\")))
236 This means that the group \"nnimap+server:INBOX.group\" is placed in
237 \"~/Maildir/.group\"."
240 (cons (regexp :tag "Regexp of group name")
241 (string :tag "Base path of groups")))
242 :set (lambda (symbol value)
243 (prog1 (set-default symbol value)
244 (when (featurep 'gnus-namazu)
245 (gnus-namazu/make-directory-table t)))))
247 ;;; Internal Variable:
248 (defconst gnus-namazu/group-name-regexp "\\`nnvirtual:namazu-search\\?")
250 ;; Multibyte group name:
252 (fboundp 'gnus-group-decoded-name)
253 (let ((gnus-group-name-charset-group-alist
254 (list (cons gnus-namazu/group-name-regexp gnus-namazu-coding-system)))
255 (query (decode-coding-string (string 27 36 66 52 65 59 122 27 40 66)
257 (not (string-match query
258 (gnus-summary-buffer-name
259 (encode-coding-string
260 (concat "nnvirtual:namazu-search?query=" query)
261 gnus-namazu-coding-system)))))
262 (let (current-load-list)
263 (defadvice gnus-summary-buffer-name
264 (before gnus-namazu-summary-buffer-name activate compile)
265 "Advised by `gnus-namazu' to handle encoded group names."
266 (ad-set-arg 0 (gnus-group-decoded-name (ad-get-arg 0))))))
268 (defmacro gnus-namazu/make-article (group number)
269 `(cons ,group ,number))
270 (defmacro gnus-namazu/article-group (x) `(car ,x))
271 (defmacro gnus-namazu/article-number (x) `(cdr ,x))
273 (defsubst gnus-namazu/indexed-servers ()
274 "Choice appropriate servers from opened ones, and return thier list."
276 (gnus-servers-using-backend 'nnml)
277 (gnus-servers-using-backend 'nnmh)))
279 (defsubst gnus-namazu/default-index-directory ()
280 (if (member gnus-namazu-default-index-directory
281 gnus-namazu-index-directories)
282 gnus-namazu-default-index-directory
283 (car gnus-namazu-index-directories)))
285 (defun gnus-namazu/setup ()
286 (and (boundp 'gnus-group-name-charset-group-alist)
287 (not (member (cons gnus-namazu/group-name-regexp
288 gnus-namazu-coding-system)
289 gnus-group-name-charset-group-alist))
290 (let ((pair (assoc gnus-namazu/group-name-regexp
291 gnus-group-name-charset-group-alist)))
293 (setcdr pair gnus-namazu-coding-system)
294 (push (cons gnus-namazu/group-name-regexp
295 gnus-namazu-coding-system)
296 gnus-group-name-charset-group-alist))))
297 (unless gnus-namazu-command-prefix
298 (gnus-namazu-update-all-indices)))
300 (defun gnus-namazu/server-directory (server)
301 "Return the top directory of the server SERVER."
302 (and (memq (car server) '(nnml nnmh))
303 (nnoo-change-server (car server) (nth 1 server) (nthcdr 2 server))
304 (file-name-as-directory
305 (expand-file-name (if (eq 'nnml (car server))
309 ;;; Functions to call Namazu.
310 (defsubst gnus-namazu/normalize-results ()
311 "Normalize file names returned by Namazu in this current buffer."
312 (goto-char (point-min))
314 (when (looking-at "file://")
315 (delete-region (point) (match-end 0)))
316 (when (if gnus-namazu-need-path-normalization
317 (or (not (looking-at "/\\(.\\)|/"))
318 (replace-match "\\1:/"))
319 (eq ?~ (char-after (point))))
320 (insert (expand-file-name
321 (buffer-substring (point-at-bol) (point-at-eol))))
322 (delete-region (point) (point-at-eol)))
325 (defsubst gnus-namazu/call-namazu (query)
326 (let ((coding-system-for-read gnus-namazu-coding-system)
327 (coding-system-for-write gnus-namazu-coding-system)
328 (default-process-coding-system
329 (cons gnus-namazu-coding-system gnus-namazu-coding-system))
330 program-coding-system-alist
331 (file-name-coding-system gnus-namazu-coding-system)
333 (append gnus-namazu-command-prefix
334 (list gnus-namazu-command
335 "-q" ; don't be verbose
336 "-a" ; show all matches
337 "-l") ; use list format
338 gnus-namazu-additional-arguments
340 gnus-namazu-index-directories)))
341 (apply 'call-process (car commands) nil t nil (cdr commands))))
343 (defvar gnus-namazu/directory-table nil)
344 (defun gnus-namazu/make-directory-table (&optional force)
345 (interactive (list t))
346 (unless (and (not force)
347 gnus-namazu/directory-table
348 (eq gnus-namazu-case-sensitive-filesystem
349 (car gnus-namazu/directory-table)))
350 (let ((table (make-vector (length gnus-newsrc-hashtb) 0))
351 cache agent alist dir method)
354 (unless (gnus-ephemeral-group-p (setq group (symbol-name group)))
355 (when (file-directory-p
356 (setq dir (file-name-as-directory
357 (gnus-cache-file-name group ""))))
358 (push (cons dir group) cache))
359 (when (file-directory-p
360 (setq dir (gnus-agent-group-pathname group)))
361 (push (cons dir group) agent))
362 (when (memq (car (setq method (gnus-find-method-for-group group)))
364 (when (file-directory-p
365 (setq dir (nnmail-group-pathname
366 (gnus-group-short-name group)
367 (gnus-namazu/server-directory method))))
368 (push (cons dir group) alist)))
369 (dolist (pair gnus-namazu-remote-groups)
370 (when (string-match (car pair) group)
371 (setq dir (nnmail-group-pathname
372 (substring group (match-end 0))
374 (push (cons (concat (cdr pair) (substring dir 1)) group)
377 (dolist (pair (nconc agent cache alist))
378 (set (intern (if gnus-namazu-case-sensitive-filesystem
380 (downcase (car pair)))
383 (setq gnus-namazu/directory-table
384 (cons gnus-namazu-case-sensitive-filesystem table)))))
386 (defun gnus-namazu/search (groups query)
387 (gnus-namazu/make-directory-table)
389 (let ((exit-status (gnus-namazu/call-namazu query)))
390 (unless (zerop exit-status)
391 (error "Namazu finished abnormally: %d" exit-status)))
392 (gnus-namazu/normalize-results)
393 (goto-char (point-min))
394 (let (articles group)
396 (setq group (buffer-substring-no-properties
400 ;; NOTE: Only numeric characters are permitted
401 ;; as file names of articles.
402 (skip-chars-backward "0-9")
406 (intern-soft (if gnus-namazu-case-sensitive-filesystem
409 (cdr gnus-namazu/directory-table))))
411 (member group groups))
412 (push (gnus-namazu/make-article
415 (buffer-substring-no-properties (point)
419 (nreverse articles))))
422 (defun gnus-namazu/get-target-groups ()
424 ((eq major-mode 'gnus-group-mode)
428 (gnus-group-process-prefix current-prefix-arg))
430 (prog1 gnus-group-marked (gnus-group-unmark-all-groups)))))
431 ((eq major-mode 'gnus-summary-mode)
432 ;; In Summary buffer.
433 (if current-prefix-arg
434 (list (gnus-read-group "Group: "))
436 (gnus-ephemeral-group-p gnus-newsgroup-name)
437 (string-match gnus-namazu/group-name-regexp gnus-newsgroup-name))
438 (cadr (assq 'gnus-namazu-target-groups
439 (gnus-info-method (gnus-get-info gnus-newsgroup-name))))
440 (list gnus-newsgroup-name))))))
442 (defun gnus-namazu/get-current-query ()
443 (and (eq major-mode 'gnus-summary-mode)
444 (gnus-ephemeral-group-p gnus-newsgroup-name)
445 (string-match gnus-namazu/group-name-regexp gnus-newsgroup-name)
446 (cadr (assq 'gnus-namazu-current-query
447 (gnus-info-method (gnus-get-info gnus-newsgroup-name))))))
449 (defvar gnus-namazu/read-query-original-buffer nil)
450 (defvar gnus-namazu/read-query-prompt nil)
451 (defvar gnus-namazu/read-query-history nil)
453 (defun gnus-namazu/get-current-subject ()
454 (and gnus-namazu/read-query-original-buffer
455 (bufferp gnus-namazu/read-query-original-buffer)
456 (with-current-buffer gnus-namazu/read-query-original-buffer
457 (when (eq major-mode 'gnus-summary-mode)
458 (let ((s (gnus-summary-article-subject)))
459 ;; Remove typically prefixes of mailing lists.
461 "^\\(\\[[^]]*[0-9]+\\]\\|([^)]*[0-9]+)\\)\\s-*" s)
462 (setq s (substring s (match-end 0))))
464 "^\\(Re\\(\\^?\\([0-9]+\\|\\[[0-9]+\\]\\)\\)?:\\s-*\\)+" s)
465 (setq s (substring s (match-end 0))))
466 (when (string-match "\\s-*(\\(re\\|was\\)\\b" s)
467 (setq s (substring s 0 (match-beginning 0))))
470 (defun gnus-namazu/get-current-from ()
471 (and gnus-namazu/read-query-original-buffer
472 (bufferp gnus-namazu/read-query-original-buffer)
473 (with-current-buffer gnus-namazu/read-query-original-buffer
474 (when (eq major-mode 'gnus-summary-mode)
475 (cadr (mail-extract-address-components
477 (gnus-summary-article-header))))))))
479 (defun gnus-namazu/get-current-to ()
480 (and gnus-namazu/read-query-original-buffer
481 (bufferp gnus-namazu/read-query-original-buffer)
482 (with-current-buffer gnus-namazu/read-query-original-buffer
483 (when (eq major-mode 'gnus-summary-mode)
484 (cadr (mail-extract-address-components
485 (cdr (assq 'To (mail-header-extra
486 (gnus-summary-article-header))))))))))
488 (defmacro gnus-namazu/minibuffer-prompt-end ()
489 (if (fboundp 'minibuffer-prompt-end)
490 '(minibuffer-prompt-end)
493 (defun gnus-namazu/message (string &rest arguments)
495 gnus-namazu/read-query-prompt
496 (buffer-substring (gnus-namazu/minibuffer-prompt-end)
498 (s2 (apply (function format) string arguments))
503 (message (if (>= w 0)
504 (concat s1 (make-string w ?\ ) s2)
506 (if (sit-for 0.3) (message s1))
509 (defun gnus-namazu/complete-query ()
513 ((and (re-search-backward "\\+\\([-a-z]*\\)" nil t)
514 (= pos (match-end 0)))
515 (let* ((partial (match-string 1))
519 (mapcar 'list gnus-namazu-field-keywords))))
522 (gnus-namazu/message "No completions of %s" partial))
523 ((= 1 (length completions))
524 (goto-char (match-beginning 1))
525 (delete-region (match-beginning 1) (match-end 1))
526 (insert (car completions) ":")
528 (gnus-namazu/message "Completed"))
530 (let ((x (try-completion partial (mapcar 'list completions))))
531 (if (string= x partial)
532 (if (and (eq last-command
533 'gnus-namazu/field-keyword-completion)
534 completion-auto-help)
535 (with-output-to-temp-buffer "*Completions*"
536 (display-completion-list completions))
537 (gnus-namazu/message "Sole completion"))
538 (goto-char (match-beginning 1))
539 (delete-region (match-beginning 1) (match-end 1))
541 (setq pos (point))))))))
542 ((and (looking-at "\\+subject:")
543 (= pos (match-end 0)))
544 (let ((s (gnus-namazu/get-current-subject)))
548 (setq pos (point)))))
549 ((and (looking-at "\\+from:")
550 (= pos (match-end 0)))
551 (let ((f (gnus-namazu/get-current-from)))
555 (setq pos (point)))))
556 ((and (looking-at "\\+to:")
557 (= pos (match-end 0)))
558 (let ((to (gnus-namazu/get-current-to)))
561 (insert "\"" to "\"")
562 (setq pos (point))))))
565 (defvar gnus-namazu/read-query-map
566 (let ((keymap (copy-keymap minibuffer-local-map)))
567 (define-key keymap "\t" 'gnus-namazu/complete-query)
570 (defun gnus-namazu/read-query (prompt &optional initial)
571 (let ((gnus-namazu/read-query-original-buffer (current-buffer))
572 (gnus-namazu/read-query-prompt prompt))
574 (when (setq initial (gnus-namazu/get-current-query))
575 (setq initial (cons initial 0))))
576 (read-from-minibuffer prompt initial gnus-namazu/read-query-map nil
577 'gnus-namazu/read-query-history)))
579 (defun gnus-namazu/highlight-words (query)
582 ;; Remove tokens for NOT search
583 (goto-char (point-min))
584 (while (re-search-forward "[
\e$B!!
\e(B \t\r\f\n]+not[
\e$B!!
\e(B \t\r\f\n]+\
585 \\([^
\e$B!!
\e(B \t\r\f\n\"{(/]+\\|\"[^\"]+\"\\|{[^}]+}\\|([^)]+)\\|/[^/]+/\\)+" nil t)
586 (delete-region (match-beginning 0) (match-end 0)))
587 ;; Remove tokens for Field search
588 (goto-char (point-min))
589 (while (re-search-forward "[
\e$B!!
\e(B \t\r\f\n]+\\+[^
\e$B!!
\e(B \t\r\f\n:]+:\
590 \\([^
\e$B!!
\e(B \t\r\f\n\"{(/]+\\|\"[^\"]+\"\\|{[^}]+}\\|([^)]+)\\|/[^/]+/\\)+" nil t)
591 (delete-region (match-beginning 0) (match-end 0)))
592 ;; Remove tokens for Regexp search
593 (goto-char (point-min))
594 (while (re-search-forward "/[^/]+/" nil t)
595 (delete-region (match-beginning 0) (match-end 0)))
596 ;; Remove brackets, double quote, asterisk and operators
597 (goto-char (point-min))
598 (while (re-search-forward "\\([(){}\"*]\\|\\b\\(and\\|or\\)\\b\\)" nil t)
599 (delete-region (match-beginning 0) (match-end 0)))
600 ;; Collect all keywords
602 (goto-char (point-min))
603 (while (re-search-forward "[^
\e$B!!
\e(B \t\r\f\n]+" nil t)
604 (push (match-string 0) query))
608 (if (string-match "\\cj" q)
613 (list (list (concat "\\b\\(" (regexp-opt en) "\\)\\b")
614 0 0 'gnus-namazu-query-highlight-face)))
616 (list (list (regexp-opt ja)
617 0 0 'gnus-namazu-query-highlight-face))))))))
619 (defun gnus-namazu/truncate-article-list (articles)
620 (let ((hit (length articles)))
621 (when (and gnus-large-newsgroup
622 (> hit gnus-large-newsgroup))
623 (let* ((cursor-in-echo-area nil)
624 (input (read-from-minibuffer
626 Too many articles were retrieved. How many articles (max %d): "
628 (cons (number-to-string gnus-large-newsgroup) 0))))
629 (unless (string-match "\\`[ \t]*\\'" input)
630 (setcdr (nthcdr (min (1- (string-to-number input)) hit) articles)
635 (defun gnus-namazu-search (groups query)
636 "Search QUERY through GROUPS with Namazu,
637 and make a virtual group contains its results."
640 (gnus-namazu/get-target-groups)
641 (gnus-namazu/read-query "Enter query: ")))
643 (let ((articles (gnus-namazu/search groups query)))
645 (let ((real-groups groups)
647 (apply (function format)
648 "nnvirtual:namazu-search?query=%s&groups=%s&id=%d%d%d"
650 (if groups (mapconcat 'identity groups ",") "ALL")
652 (gnus-namazu/truncate-article-list articles)
655 (add-to-list 'real-groups (gnus-namazu/article-group a))))
656 ;; Generate virtual group which includes all results.
657 (when (fboundp 'gnus-group-decoded-name)
659 (encode-coding-string vgroup gnus-namazu-coding-system)))
661 (gnus-group-read-ephemeral-group
664 (nnvirtual-component-groups ,real-groups)
665 (gnus-namazu-target-groups ,groups)
666 (gnus-namazu-current-query ,query))
667 t (cons (current-buffer) (current-window-configuration)) t))
668 (when gnus-namazu-query-highlight
669 (gnus-group-set-parameter vgroup 'highlight-words
670 (gnus-namazu/highlight-words query)))
671 ;; Generate new summary buffer which contains search results.
672 (gnus-group-read-group
674 (sort (delq nil ;; Ad-hoc fix, to avoid wrong-type-argument error.
677 (nnvirtual-reverse-map-article
678 (gnus-namazu/article-group a)
679 (gnus-namazu/article-number a)))
682 (message "No entry."))))
684 (defmacro gnus-namazu/lock-file-name (&optional directory)
685 `(expand-file-name "NMZ.lock2" ,directory))
687 (defmacro gnus-namazu/status-file-name (&optional directory)
688 `(expand-file-name "NMZ.status" ,directory))
690 (defmacro gnus-namazu/index-file-name (&optional directory)
691 `(expand-file-name "NMZ.i" ,directory))
693 (defun gnus-namazu/mknmz-cleanup (directory)
694 (let ((lockfile (gnus-namazu/lock-file-name directory)))
695 (when (file-exists-p lockfile)
696 (delete-file lockfile)
697 (dolist (tmpfile (directory-files directory t "\\`NMZ\\..*\\.tmp\\'" t))
698 (delete-file tmpfile)))))
701 (defun gnus-namazu-create-index (directory &optional target-directories force)
702 "Create index under DIRECTORY."
705 (if (and current-prefix-arg (> (length gnus-namazu-index-directories) 1))
706 (completing-read "Directory: "
707 (mapcar 'list gnus-namazu-index-directories) nil t)
708 (gnus-namazu/default-index-directory))
710 (setq directory (file-name-as-directory (expand-file-name directory)))
711 (unless target-directories
712 (setq target-directories
714 (mapcar (lambda (dir)
715 (when (file-directory-p dir) dir))
717 (mapcar 'gnus-namazu/server-directory
718 (gnus-namazu/indexed-servers))
720 (expand-file-name gnus-cache-directory)
721 (expand-file-name gnus-agent-directory)))))))
722 (if (file-exists-p (gnus-namazu/lock-file-name directory))
724 (error "Found lock file: %s" (gnus-namazu/lock-file-name directory)))
726 (get-buffer-create (concat " *mknmz*" directory))
728 (unless (file-directory-p directory)
729 (make-directory directory t))
730 (setq default-directory directory)
731 (let ((args (append gnus-namazu-make-index-arguments
732 target-directories)))
733 (insert "% " gnus-namazu-make-index-command " "
734 (mapconcat 'identity args " ") "\n")
735 (goto-char (point-max))
737 (pop-to-buffer (current-buffer)))
738 (message "Make index at %s..." directory)
740 (apply 'call-process gnus-namazu-make-index-command nil t t args)
741 (gnus-namazu/mknmz-cleanup directory))
742 (message "Make index at %s...done" directory)
744 (kill-buffer (current-buffer)))))
745 (gnus-namazu/make-directory-table t)))
747 (defun gnus-namazu/lapse-seconds (start end)
748 "Return lapse seconds from START to END.
749 START and END are lists which represent time in Emacs-style."
750 (+ (* (- (car end) (car start)) 65536)
754 (defun gnus-namazu/index-old-p (directory)
755 "Return non-nil value when the index under the DIRECTORY is older
756 than the period that is set to `gnus-namazu-index-update-interval'"
757 (let ((file (gnus-namazu/index-file-name directory)))
758 (or (not (file-exists-p file))
759 (and (integerp gnus-namazu-index-update-interval)
760 (>= (gnus-namazu/lapse-seconds
761 (nth 5 (file-attributes file))
763 gnus-namazu-index-update-interval)))))
765 (defvar gnus-namazu/update-directories nil)
766 (defvar gnus-namazu/update-process nil)
768 (defun gnus-namazu/update-p (directory &optional force)
769 "Return the DIRECTORY when the index undef the DIRECTORY should be updated."
770 (setq directory (file-name-as-directory (expand-file-name directory)))
771 (labels ((error-message (format &rest args)
772 (apply (if force 'error 'message) format args)
774 (if gnus-namazu/update-process
775 (error-message "%s" "Can not run two update processes simultaneously")
777 (gnus-namazu/index-old-p directory))
778 (let ((status-file (gnus-namazu/status-file-name directory)))
779 (or (file-exists-p status-file)
780 (error-message "Can not find status file: %s" status-file)))
781 (let ((lock-file (gnus-namazu/lock-file-name directory)))
782 (or (not (file-exists-p lock-file))
783 (error-message "Found lock file: %s" lock-file)))
787 (defun gnus-namazu-update-index (directory &optional force)
788 "Update the index under the DIRECTORY."
791 (if (and current-prefix-arg (> (length gnus-namazu-index-directories) 1))
792 (completing-read "Directory: "
793 (mapcar 'list gnus-namazu-index-directories) nil t)
794 (gnus-namazu/default-index-directory))
796 (when (setq directory (gnus-namazu/update-p directory force))
797 (with-current-buffer (get-buffer-create (concat " *mknmz*" directory))
798 (buffer-disable-undo)
800 (unless (file-directory-p directory)
801 (make-directory directory t))
802 (setq default-directory directory)
803 (let ((proc (start-process gnus-namazu-make-index-command
805 gnus-namazu-make-index-command
806 (format "--update=%s" directory))))
808 (prog1 (setq gnus-namazu/update-process proc)
809 (process-kill-without-query proc)
810 (set-process-sentinel proc 'gnus-namazu/update-sentinel)
811 (add-hook 'kill-emacs-hook 'gnus-namazu-stop-update)
812 (message "Update index at %s..." directory))
813 (goto-char (point-min))
814 (if (re-search-forward "^ERROR:.*$" nil t)
816 (pop-to-buffer (current-buffer))
817 (funcall (if force 'error 'message)
818 "Update index at %s...%s" directory (match-string 0)))
819 (kill-buffer (current-buffer))
820 (funcall (if force 'error 'message)
821 "Can not start %s" gnus-namazu-make-index-command))
825 (defun gnus-namazu-update-all-indices (&optional force)
826 "Update all indices which is set to `gnus-namazu-index-directories'."
827 (interactive (list t))
828 (gnus-namazu-update-indices gnus-namazu-index-directories force))
830 (defun gnus-namazu-update-indices (&optional directories force)
831 (when (setq directories
832 (delq nil (mapcar (lambda (d)
833 (gnus-namazu/update-p d force))
835 (setq gnus-namazu/update-directories (cons force (cdr directories)))
836 (gnus-namazu-update-index (car directories) force)))
838 (defun gnus-namazu/update-sentinel (process event)
839 (let ((buffer (process-buffer process)))
840 (when (buffer-name buffer)
841 (with-current-buffer buffer
842 (gnus-namazu/mknmz-cleanup default-directory)
843 (goto-char (point-min))
845 ((re-search-forward "^ERROR:.*$" nil t)
846 (pop-to-buffer (current-buffer))
847 (message "Update index at %s...%s"
848 default-directory (match-string 0))
849 (setq gnus-namazu/update-directories nil))
850 ((and (eq 'exit (process-status process))
851 (zerop (process-exit-status process)))
852 (message "Update index at %s...done" default-directory)
853 (unless (or debug-on-error debug-on-quit)
854 (kill-buffer buffer)))))))
855 (setq gnus-namazu/update-process nil)
856 (unless (gnus-namazu-update-indices (cdr gnus-namazu/update-directories)
857 (car gnus-namazu/update-directories))
858 (gnus-namazu/make-directory-table t)))
861 (defun gnus-namazu-stop-update ()
862 "Stop the running indexer of Namazu."
864 (setq gnus-namazu/update-directories nil)
865 (and gnus-namazu/update-process
866 (processp gnus-namazu/update-process)
867 (kill-process gnus-namazu/update-process)))
869 (let (current-load-list)
870 (defadvice gnus-offer-save-summaries
871 (before gnus-namazu-kill-summary-buffers activate compile)
872 "Advised by `gnus-namazu'.
873 In order to avoid annoying questions, kill summary buffers which
874 generated by `gnus-namazu' itself before `gnus-offer-save-summaries'
876 (let ((buffers (buffer-list)))
878 (when (with-current-buffer (car buffers)
879 (and (eq major-mode 'gnus-summary-mode)
880 (gnus-ephemeral-group-p gnus-newsgroup-name)
881 (string-match gnus-namazu/group-name-regexp
882 gnus-newsgroup-name)))
883 (kill-buffer (car buffers)))
884 (setq buffers (cdr buffers))))))
887 (defun gnus-namazu-insinuate ()
889 'gnus-group-mode-hook
891 (define-key gnus-group-mode-map "\C-c\C-n" 'gnus-namazu-search)))
893 'gnus-summary-mode-hook
895 (define-key gnus-summary-mode-map "\C-c\C-n" 'gnus-namazu-search))))
897 (provide 'gnus-namazu)
899 ;; gnus-namazu.el ends here.