1 ;;; gnus-namazu.el --- Search mail with Namazu -*- coding: iso-2022-7bit; -*-
3 ;; Copyright (C) 2000,2001,2002,2003 TSUCHIYA Masatoshi <tsuchiya@namazu.org>
5 ;; Author: TSUCHIYA Masatoshi <tsuchiya@namazu.org>
6 ;; Keywords: mail searching namazu
8 ;; This file is a part of Semi-Gnus.
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 this program; if not, you can either send email to this
22 ;; program's maintainer or write to: The Free Software Foundation,
23 ;; Inc.; 59 Temple Place, Suite 330; Boston, MA 02111-1307, USA.
28 ;; This file defines the command to search mails and persistent
29 ;; articles with Namazu and to browse its results with Gnus.
31 ;; Namazu is a full-text search engine intended for easy use. For
32 ;; more detail about Namazu, visit the following page:
39 ;; If this module has already been installed, only 3 steps are
40 ;; required to search articles with this module.
42 ;; (1) Install Namazu.
43 ;; (2) Start Gnus and type M-x gnus-namazu-create-index RET to make
45 ;; (3) In group buffer or in summary buffer, type C-c C-n query RET.
50 ;; Before installing this module, you must install Namazu.
52 ;; This file is a part of T-gnus but is not *YET* a part of Gnus.
53 ;; When you would like to use this module in Gnus (not T-gnus), put
54 ;; this file into the lisp/ directory in the Gnus source tree and run
55 ;; `make install'. And then, put the following expression into your
58 ;; (require 'gnus-namazu)
59 ;; (gnus-namazu-insinuate)
61 ;; In order to make index of articles with Namazu before using this
62 ;; module, type M-x gnus-namazu-create-index RET. Otherwise, you can
63 ;; create index by yourself with the following commands:
65 ;; % mkdir ~/News/namazu
66 ;; % mknmz -a -h -O ~/News/namazu ~/Mail ~/News/cache
68 ;; The first command makes the directory for index files, and the
69 ;; second command generates index files of mails and persistent
72 ;; In order to update indices for incoming articles, this module
73 ;; automatically runs mknmz, the indexer of Namazu, at an interval of
74 ;; 3 days; this period is set to `gnus-namazu-index-update-interval'.
76 ;; Indices will be updated when `gnus-namazu-search' is called. If
77 ;; you want to update indices everywhen Gnus is started, you can put
78 ;; the following expression to your ~/.gnus.
80 ;; (add-hook 'gnus-startup-hook 'gnus-namazu-update-all-indices)
82 ;; In order to control mknmz closely, disable the automatic updating
83 ;; feature and run mknmz by yourself. In this case, set nil to the
86 ;; (setq gnus-namazu-index-update-interval nil)
88 ;; When your index is put into the directory other than the default
89 ;; one (~/News/namazu), it is necessary to set its place to
90 ;; `gnus-namazu-index-directories' as follows:
92 ;; (setq gnus-namazu-index-directories
93 ;; (list (expand-file-name "~/namazu")))
98 (eval-when-compile (require 'cl))
104 ;; It is required for Mule 2.3. See the file Mule23@1934.en.
106 (autoload 'regexp-opt "regexp-opt"))
108 ;; To suppress byte-compile warning.
110 (defvar nnml-directory)
111 (defvar nnmh-directory))
114 (defgroup gnus-namazu nil
115 "Search nnmh and nnml groups in Gnus with Namazu."
118 :prefix "gnus-namazu-")
120 (defconst gnus-namazu-default-index-directory
121 (expand-file-name "namazu" gnus-directory)
122 "Default place of Namazu index files.")
124 (defcustom gnus-namazu-index-directories
126 (or (and (boundp 'gnus-namazu-index-directory)
127 (symbol-value 'gnus-namazu-index-directory))
128 (and (boundp 'nnir-namazu-index-directory)
129 (symbol-value 'nnir-namazu-index-directory))
130 gnus-namazu-default-index-directory))
131 "*Places of Namazu index files."
132 :type '(repeat directory)
135 (defcustom gnus-namazu-command
136 (or (and (boundp 'namazu-command)
137 (symbol-value 'namazu-command))
138 (and (boundp 'nnir-namazu-program)
139 (symbol-value 'nnir-namazu-program))
141 "*Name of the executable file of Namazu."
145 (defcustom gnus-namazu-additional-arguments nil
146 "*Additional arguments of Namazu.
147 The options `-q', `-a', and `-l' are always used, very few other
148 options make any sense in this context."
149 :type '(repeat string)
152 (defcustom gnus-namazu-index-update-interval
153 259200 ; 3 days == 259200 seconds.
154 "*Number of seconds between running the indexer of Namazu."
155 :type '(choice (const :tag "Never run the indexer" nil)
156 (integer :tag "Number of seconds"))
159 (defcustom gnus-namazu-make-index-command "mknmz"
160 "*Name of the executable file of the indexer of Namazu."
164 (defcustom gnus-namazu-make-index-arguments
166 (list "--all" "--mailnews" "--deny=^.*[^0-9].*$")
167 (when (and (boundp 'current-language-environment)
169 (symbol-value 'current-language-environment)))
170 (list "--indexing-lang=ja")))
171 "*Arguments of the indexer of Namazu."
172 :type '(repeat string)
175 (defcustom gnus-namazu-field-keywords
176 '("date" "from" "newsgroups" "size" "subject" "summary" "to" "uri")
177 "*List of keywords to do field-search."
178 :type '(repeat string)
181 (defcustom gnus-namazu-coding-system
182 (if (memq system-type '(windows-nt OS/2 emx))
185 "*Coding system for Namazu process."
189 (defcustom gnus-namazu-need-path-normalization
190 (and (memq system-type '(windows-nt OS/2 emx)) t)
191 "*Non-nil means that outputs of namazu may contain drive letters."
195 (defcustom gnus-namazu-case-sensitive-filesystem
196 (not (eq system-type 'windows-nt))
197 "*Non-nil means that the using file system distinguishes cases of characters."
201 (defcustom gnus-namazu-query-highlight t
202 "Non-nil means that queried words is highlighted."
206 (defface gnus-namazu-query-highlight-face
207 '((((type tty pc) (class color))
208 (:background "magenta4" :foreground "cyan1"))
209 (((class color) (background light))
210 (:background "magenta4" :foreground "lightskyblue1"))
211 (((class color) (background dark))
212 (:background "palevioletred2" :foreground "brown4"))
213 (t (:inverse-video t)))
214 "Face used for namazu query matching words."
217 ;;; Internal Variable:
218 (defconst gnus-namazu/group-name-regexp "\\`nnvirtual:namazu-search\\?")
220 ;; Multibyte group name:
222 (fboundp 'gnus-group-decoded-name)
223 (let ((gnus-group-name-charset-group-alist
224 (list (cons gnus-namazu/group-name-regexp gnus-namazu-coding-system)))
225 (query (decode-coding-string (string 27 36 66 52 65 59 122 27 40 66)
227 (not (string-match query
228 (gnus-summary-buffer-name
229 (encode-coding-string
230 (concat "nnvirtual:namazu-search?query=" query)
231 gnus-namazu-coding-system)))))
232 (let (current-load-list)
233 (defadvice gnus-summary-buffer-name
234 (before gnus-namazu-summary-buffer-name activate compile)
235 "Advised by `gnus-namazu' to handle encoded group names."
236 (ad-set-arg 0 (gnus-group-decoded-name (ad-get-arg 0))))))
238 (defmacro gnus-namazu/make-article (group number)
239 `(cons ,group ,number))
240 (defmacro gnus-namazu/article-group (x) `(car ,x))
241 (defmacro gnus-namazu/article-number (x) `(cdr ,x))
243 (defsubst gnus-namazu/indexed-servers ()
244 "Choice appropriate servers from opened ones, and return thier list."
246 (gnus-servers-using-backend 'nnml)
247 (gnus-servers-using-backend 'nnmh)))
249 (defsubst gnus-namazu/default-index-directory ()
250 (if (member gnus-namazu-default-index-directory
251 gnus-namazu-index-directories)
252 gnus-namazu-default-index-directory
253 (car gnus-namazu-index-directories)))
255 (defun gnus-namazu/setup ()
256 (and (boundp 'gnus-group-name-charset-group-alist)
257 (not (member (cons gnus-namazu/group-name-regexp
258 gnus-namazu-coding-system)
259 gnus-group-name-charset-group-alist))
260 (let ((pair (assoc gnus-namazu/group-name-regexp
261 gnus-group-name-charset-group-alist)))
263 (setcdr pair gnus-namazu-coding-system)
264 (push (cons gnus-namazu/group-name-regexp
265 gnus-namazu-coding-system)
266 gnus-group-name-charset-group-alist))))
267 (gnus-namazu-update-all-indices))
269 (defun gnus-namazu/server-directory (server)
270 "Return the top directory of the server SERVER."
271 (and (memq (car server) '(nnml nnmh))
272 (nnoo-change-server (car server) (nth 1 server) (nthcdr 2 server))
273 (file-name-as-directory
274 (expand-file-name (if (eq 'nnml (car server))
278 ;;; Functions to call Namazu.
279 (defsubst gnus-namazu/normalize-results ()
280 "Normalize file names returned by Namazu in this current buffer."
281 (goto-char (point-min))
283 (when (looking-at "file://")
284 (delete-region (point) (match-end 0)))
285 (when (if gnus-namazu-need-path-normalization
286 (or (not (looking-at "/\\(.\\)|/"))
287 (replace-match "\\1:/"))
288 (eq ?~ (char-after (point))))
289 (insert (expand-file-name
290 (buffer-substring (gnus-point-at-bol) (gnus-point-at-eol))))
291 (delete-region (point) (gnus-point-at-eol)))
294 (defsubst gnus-namazu/call-namazu (query)
295 (let ((coding-system-for-read gnus-namazu-coding-system)
296 (coding-system-for-write gnus-namazu-coding-system)
297 (default-process-coding-system
298 (cons gnus-namazu-coding-system gnus-namazu-coding-system))
299 program-coding-system-alist
300 (file-name-coding-system gnus-namazu-coding-system))
302 `(,gnus-namazu-command
303 nil ; input from /dev/null
305 nil ; don't redisplay
306 "-q" ; don't be verbose
307 "-a" ; show all matches
308 "-l" ; use list format
309 ,@gnus-namazu-additional-arguments
311 ,@gnus-namazu-index-directories))))
313 (defvar gnus-namazu/directory-table nil)
314 (defun gnus-namazu/make-directory-table (&optional force)
315 (interactive (list t))
316 (unless (and (not force)
317 gnus-namazu/directory-table
318 (eq gnus-namazu-case-sensitive-filesystem
319 (car gnus-namazu/directory-table)))
320 (let ((table (make-vector (length gnus-newsrc-hashtb) 0))
321 cache agent alist dir method)
324 (unless (gnus-ephemeral-group-p (setq group (symbol-name group)))
325 (when (file-directory-p
326 (setq dir (file-name-as-directory
327 (gnus-cache-file-name group ""))))
328 (push (cons dir group) cache))
329 (when (file-directory-p
330 (setq dir (gnus-agent-group-pathname group)))
331 (push (cons dir group) agent))
332 (when (memq (car (setq method (gnus-find-method-for-group group)))
334 (when (file-directory-p
335 (setq dir (nnmail-group-pathname
336 (gnus-group-short-name group)
337 (gnus-namazu/server-directory method))))
338 (push (cons dir group) alist)))))
340 (dolist (pair (nconc agent cache alist))
341 (set (intern (if gnus-namazu-case-sensitive-filesystem
343 (downcase (car pair)))
346 (setq gnus-namazu/directory-table
347 (cons gnus-namazu-case-sensitive-filesystem table)))))
349 (defun gnus-namazu/search (groups query)
350 (gnus-namazu/make-directory-table)
352 (let ((exit-status (gnus-namazu/call-namazu query)))
353 (unless (zerop exit-status)
354 (error "Namazu finished abnormally: %d" exit-status)))
355 (gnus-namazu/normalize-results)
356 (goto-char (point-min))
357 (let (articles group)
359 (setq group (buffer-substring-no-properties
363 ;; NOTE: Only numeric characters are permitted
364 ;; as file names of articles.
365 (skip-chars-backward "0-9")
369 (intern-soft (if gnus-namazu-case-sensitive-filesystem
372 (cdr gnus-namazu/directory-table))))
374 (member group groups))
375 (push (gnus-namazu/make-article
378 (buffer-substring-no-properties (point)
379 (gnus-point-at-eol))))
382 (nreverse articles))))
385 (defun gnus-namazu/get-target-groups ()
387 ((eq major-mode 'gnus-group-mode)
391 (gnus-group-process-prefix current-prefix-arg))
393 (prog1 gnus-group-marked (gnus-group-unmark-all-groups)))))
394 ((eq major-mode 'gnus-summary-mode)
395 ;; In Summary buffer.
396 (if current-prefix-arg
397 (list (gnus-read-group "Group: "))
399 (gnus-ephemeral-group-p gnus-newsgroup-name)
400 (string-match gnus-namazu/group-name-regexp gnus-newsgroup-name))
401 (cadr (assq 'gnus-namazu-target-groups
402 (gnus-info-method (gnus-get-info gnus-newsgroup-name))))
403 (list gnus-newsgroup-name))))))
405 (defun gnus-namazu/get-current-query ()
406 (and (eq major-mode 'gnus-summary-mode)
407 (gnus-ephemeral-group-p gnus-newsgroup-name)
408 (string-match gnus-namazu/group-name-regexp gnus-newsgroup-name)
409 (cadr (assq 'gnus-namazu-current-query
410 (gnus-info-method (gnus-get-info gnus-newsgroup-name))))))
412 (defvar gnus-namazu/read-query-original-buffer nil)
413 (defvar gnus-namazu/read-query-prompt nil)
414 (defvar gnus-namazu/read-query-history nil)
416 (defun gnus-namazu/get-current-subject ()
417 (and gnus-namazu/read-query-original-buffer
418 (bufferp gnus-namazu/read-query-original-buffer)
419 (with-current-buffer gnus-namazu/read-query-original-buffer
420 (when (eq major-mode 'gnus-summary-mode)
421 (let ((s (gnus-summary-article-subject)))
422 ;; Remove typically prefixes of mailing lists.
424 "^\\(\\[[^]]*[0-9]+\\]\\|([^)]*[0-9]+)\\)\\s-*" s)
425 (setq s (substring s (match-end 0))))
427 "^\\(Re\\(\\^?\\([0-9]+\\|\\[[0-9]+\\]\\)\\)?:\\s-*\\)+" s)
428 (setq s (substring s (match-end 0))))
429 (when (string-match "\\s-*(\\(re\\|was\\)\\b" s)
430 (setq s (substring s 0 (match-beginning 0))))
433 (defun gnus-namazu/get-current-from ()
434 (and gnus-namazu/read-query-original-buffer
435 (bufferp gnus-namazu/read-query-original-buffer)
436 (with-current-buffer gnus-namazu/read-query-original-buffer
437 (when (eq major-mode 'gnus-summary-mode)
438 (cadr (mail-extract-address-components
440 (gnus-summary-article-header))))))))
442 (defun gnus-namazu/get-current-to ()
443 (and gnus-namazu/read-query-original-buffer
444 (bufferp gnus-namazu/read-query-original-buffer)
445 (with-current-buffer gnus-namazu/read-query-original-buffer
446 (when (eq major-mode 'gnus-summary-mode)
447 (cadr (mail-extract-address-components
448 (cdr (assq 'To (mail-header-extra
449 (gnus-summary-article-header))))))))))
451 (defmacro gnus-namazu/minibuffer-prompt-end ()
452 (if (fboundp 'minibuffer-prompt-end)
453 '(minibuffer-prompt-end)
456 (defun gnus-namazu/message (string &rest arguments)
458 gnus-namazu/read-query-prompt
459 (buffer-substring (gnus-namazu/minibuffer-prompt-end)
461 (s2 (apply (function format) string arguments))
466 (message (if (>= w 0)
467 (concat s1 (make-string w ?\ ) s2)
469 (if (sit-for 0.3) (message s1))
472 (defun gnus-namazu/complete-query ()
476 ((and (re-search-backward "\\+\\([-a-z]*\\)" nil t)
477 (= pos (match-end 0)))
478 (let* ((partial (match-string 1))
482 (mapcar 'list gnus-namazu-field-keywords))))
485 (gnus-namazu/message "No completions of %s" partial))
486 ((= 1 (length completions))
487 (goto-char (match-beginning 1))
488 (delete-region (match-beginning 1) (match-end 1))
489 (insert (car completions) ":")
491 (gnus-namazu/message "Completed"))
493 (let ((x (try-completion partial (mapcar 'list completions))))
494 (if (string= x partial)
495 (if (and (eq last-command
496 'gnus-namazu/field-keyword-completion)
497 completion-auto-help)
498 (with-output-to-temp-buffer "*Completions*"
499 (display-completion-list completions))
500 (gnus-namazu/message "Sole completion"))
501 (goto-char (match-beginning 1))
502 (delete-region (match-beginning 1) (match-end 1))
504 (setq pos (point))))))))
505 ((and (looking-at "\\+subject:")
506 (= pos (match-end 0)))
507 (let ((s (gnus-namazu/get-current-subject)))
511 (setq pos (point)))))
512 ((and (looking-at "\\+from:")
513 (= pos (match-end 0)))
514 (let ((f (gnus-namazu/get-current-from)))
518 (setq pos (point)))))
519 ((and (looking-at "\\+to:")
520 (= pos (match-end 0)))
521 (let ((to (gnus-namazu/get-current-to)))
524 (insert "\"" to "\"")
525 (setq pos (point))))))
528 (defvar gnus-namazu/read-query-map
529 (let ((keymap (copy-keymap minibuffer-local-map)))
530 (define-key keymap "\t" 'gnus-namazu/complete-query)
533 (defun gnus-namazu/read-query (prompt &optional initial)
534 (let ((gnus-namazu/read-query-original-buffer (current-buffer))
535 (gnus-namazu/read-query-prompt prompt))
537 (when (setq initial (gnus-namazu/get-current-query))
538 (setq initial (cons initial 0))))
539 (read-from-minibuffer prompt initial gnus-namazu/read-query-map nil
540 'gnus-namazu/read-query-history)))
542 (defun gnus-namazu/highlight-words (query)
545 ;; Remove tokens for NOT search
546 (goto-char (point-min))
547 (while (re-search-forward "[
\e$B!!
\e(B \t\r\f\n]+not[
\e$B!!
\e(B \t\r\f\n]+\
548 \\([^
\e$B!!
\e(B \t\r\f\n\"{(/]+\\|\"[^\"]+\"\\|{[^}]+}\\|([^)]+)\\|/[^/]+/\\)+" nil t)
549 (delete-region (match-beginning 0) (match-end 0)))
550 ;; Remove tokens for Field search
551 (goto-char (point-min))
552 (while (re-search-forward "[
\e$B!!
\e(B \t\r\f\n]+\\+[^
\e$B!!
\e(B \t\r\f\n:]+:\
553 \\([^
\e$B!!
\e(B \t\r\f\n\"{(/]+\\|\"[^\"]+\"\\|{[^}]+}\\|([^)]+)\\|/[^/]+/\\)+" nil t)
554 (delete-region (match-beginning 0) (match-end 0)))
555 ;; Remove tokens for Regexp search
556 (goto-char (point-min))
557 (while (re-search-forward "/[^/]+/" nil t)
558 (delete-region (match-beginning 0) (match-end 0)))
559 ;; Remove brackets, double quote, asterisk and operators
560 (goto-char (point-min))
561 (while (re-search-forward "\\([(){}\"*]\\|\\b\\(and\\|or\\)\\b\\)" nil t)
562 (delete-region (match-beginning 0) (match-end 0)))
563 ;; Collect all keywords
565 (goto-char (point-min))
566 (while (re-search-forward "[^
\e$B!!
\e(B \t\r\f\n]+" nil t)
567 (push (match-string 0) query))
571 (if (string-match "\\cj" q)
576 (list (list (concat "\\b\\(" (regexp-opt en) "\\)\\b")
577 0 0 'gnus-namazu-query-highlight-face)))
579 (list (list (regexp-opt ja)
580 0 0 'gnus-namazu-query-highlight-face))))))))
582 (defun gnus-namazu/truncate-article-list (articles)
583 (let ((hit (length articles)))
584 (when (and gnus-large-newsgroup
585 (> hit gnus-large-newsgroup))
586 (let* ((cursor-in-echo-area nil)
587 (input (read-from-minibuffer
589 Too many articles were retrieved. How many articles (max %d): "
591 (cons (number-to-string gnus-large-newsgroup) 0))))
592 (unless (string-match "\\`[ \t]*\\'" input)
593 (setcdr (nthcdr (min (1- (string-to-number input)) hit) articles)
598 (defun gnus-namazu-search (groups query)
599 "Search QUERY through GROUPS with Namazu,
600 and make a virtual group contains its results."
603 (gnus-namazu/get-target-groups)
604 (gnus-namazu/read-query "Enter query: ")))
606 (let ((articles (gnus-namazu/search groups query)))
608 (let ((real-groups groups)
610 (apply (function format)
611 "nnvirtual:namazu-search?query=%s&groups=%s&id=%d%d%d"
613 (if groups (mapconcat 'identity groups ",") "ALL")
615 (gnus-namazu/truncate-article-list articles)
618 (add-to-list 'real-groups (gnus-namazu/article-group a))))
619 ;; Generate virtual group which includes all results.
620 (when (fboundp 'gnus-group-decoded-name)
622 (encode-coding-string vgroup gnus-namazu-coding-system)))
624 (gnus-group-read-ephemeral-group
627 (nnvirtual-component-groups ,real-groups)
628 (gnus-namazu-target-groups ,groups)
629 (gnus-namazu-current-query ,query))
630 t (cons (current-buffer) (current-window-configuration)) t))
631 (when gnus-namazu-query-highlight
632 (gnus-group-set-parameter vgroup 'highlight-words
633 (gnus-namazu/highlight-words query)))
634 ;; Generate new summary buffer which contains search results.
635 (gnus-group-read-group
637 (sort (delq nil ;; Ad-hoc fix, to avoid wrong-type-argument error.
640 (nnvirtual-reverse-map-article
641 (gnus-namazu/article-group a)
642 (gnus-namazu/article-number a)))
645 (message "No entry."))))
647 (defmacro gnus-namazu/lock-file-name (&optional directory)
648 `(expand-file-name "NMZ.lock2" ,directory))
650 (defmacro gnus-namazu/status-file-name (&optional directory)
651 `(expand-file-name "NMZ.status" ,directory))
653 (defmacro gnus-namazu/index-file-name (&optional directory)
654 `(expand-file-name "NMZ.i" ,directory))
656 (defun gnus-namazu/mknmz-cleanup (directory)
657 (let ((lockfile (gnus-namazu/lock-file-name directory)))
658 (when (file-exists-p lockfile)
659 (delete-file lockfile)
660 (dolist (tmpfile (directory-files directory t "\\`NMZ\\..*\\.tmp\\'" t))
661 (delete-file tmpfile)))))
664 (defun gnus-namazu-create-index (directory &optional target-directories force)
665 "Create index under DIRECTORY."
668 (if (and current-prefix-arg (> (length gnus-namazu-index-directories) 1))
669 (completing-read "Directory: "
670 (mapcar 'list gnus-namazu-index-directories) nil t)
671 (gnus-namazu/default-index-directory))
673 (setq directory (file-name-as-directory (expand-file-name directory)))
674 (unless target-directories
675 (setq target-directories
677 (mapcar (lambda (dir)
678 (when (file-directory-p dir) dir))
680 (mapcar 'gnus-namazu/server-directory
681 (gnus-namazu/indexed-servers))
683 (expand-file-name gnus-cache-directory)
684 (expand-file-name gnus-agent-directory)))))))
685 (if (file-exists-p (gnus-namazu/lock-file-name directory))
687 (error "Found lock file: %s" (gnus-namazu/lock-file-name directory)))
689 (get-buffer-create (concat " *mknmz*" directory))
691 (unless (file-directory-p directory)
692 (make-directory directory t))
693 (setq default-directory directory)
694 (let ((args (append gnus-namazu-make-index-arguments
695 target-directories)))
696 (insert "% " gnus-namazu-make-index-command " "
697 (mapconcat 'identity args " ") "\n")
698 (goto-char (point-max))
700 (pop-to-buffer (current-buffer)))
701 (message "Make index at %s..." directory)
703 (apply 'call-process gnus-namazu-make-index-command nil t t args)
704 (gnus-namazu/mknmz-cleanup directory))
705 (message "Make index at %s...done" directory)
707 (kill-buffer (current-buffer)))))
708 (gnus-namazu/make-directory-table t)))
710 (defun gnus-namazu/lapse-seconds (start end)
711 "Return lapse seconds from START to END.
712 START and END are lists which represent time in Emacs-style."
713 (+ (* (- (car end) (car start)) 65536)
717 (defun gnus-namazu/index-old-p (directory)
718 "Return non-nil value when the index under the DIRECTORY is older
719 than the period that is set to `gnus-namazu-index-update-interval'"
720 (let ((file (gnus-namazu/index-file-name directory)))
721 (or (not (file-exists-p file))
722 (and (integerp gnus-namazu-index-update-interval)
723 (>= (gnus-namazu/lapse-seconds
724 (nth 5 (file-attributes file))
726 gnus-namazu-index-update-interval)))))
728 (defvar gnus-namazu/update-directories nil)
729 (defvar gnus-namazu/update-process nil)
731 (defun gnus-namazu/update-p (directory &optional force)
732 "Return the DIRECTORY when the index undef the DIRECTORY should be updated."
733 (setq directory (file-name-as-directory (expand-file-name directory)))
734 (labels ((error-message (format &rest args)
735 (apply (if force 'error 'message) format args)
737 (if gnus-namazu/update-process
738 (error-message "%s" "Can not run two update processes simultaneously")
740 (gnus-namazu/index-old-p directory))
741 (let ((status-file (gnus-namazu/status-file-name directory)))
742 (or (file-exists-p status-file)
743 (error-message "Can not find status file: %s" status-file)))
744 (let ((lock-file (gnus-namazu/lock-file-name directory)))
745 (or (not (file-exists-p lock-file))
746 (error-message "Found lock file: %s" lock-file)))
750 (defun gnus-namazu-update-index (directory &optional force)
751 "Update the index under the DIRECTORY."
754 (if (and current-prefix-arg (> (length gnus-namazu-index-directories) 1))
755 (completing-read "Directory: "
756 (mapcar 'list gnus-namazu-index-directories) nil t)
757 (gnus-namazu/default-index-directory))
759 (when (setq directory (gnus-namazu/update-p directory force))
760 (with-current-buffer (get-buffer-create (concat " *mknmz*" directory))
761 (buffer-disable-undo)
763 (unless (file-directory-p directory)
764 (make-directory directory t))
765 (setq default-directory directory)
766 (let ((proc (start-process gnus-namazu-make-index-command
768 gnus-namazu-make-index-command
769 (format "--update=%s" directory))))
771 (prog1 (setq gnus-namazu/update-process proc)
772 (process-kill-without-query proc)
773 (set-process-sentinel proc 'gnus-namazu/update-sentinel)
774 (add-hook 'kill-emacs-hook 'gnus-namazu-stop-update)
775 (message "Update index at %s..." directory))
776 (goto-char (point-min))
777 (if (re-search-forward "^ERROR:.*$" nil t)
779 (pop-to-buffer (current-buffer))
780 (funcall (if force 'error 'message)
781 "Update index at %s...%s" directory (match-string 0)))
782 (kill-buffer (current-buffer))
783 (funcall (if force 'error 'message)
784 "Can not start %s" gnus-namazu-make-index-command))
788 (defun gnus-namazu-update-all-indices (&optional force)
789 "Update all indices which is set to `gnus-namazu-index-directories'."
790 (interactive (list t))
791 (gnus-namazu-update-indices gnus-namazu-index-directories force))
793 (defun gnus-namazu-update-indices (&optional directories force)
794 (when (setq directories
795 (delq nil (mapcar (lambda (d) (gnus-namazu/update-p d force))
797 (setq gnus-namazu/update-directories (cons force (cdr directories)))
798 (gnus-namazu-update-index (car directories) force)))
800 (defun gnus-namazu/update-sentinel (process event)
801 (let ((buffer (process-buffer process)))
802 (when (buffer-name buffer)
803 (with-current-buffer buffer
804 (gnus-namazu/mknmz-cleanup default-directory)
805 (goto-char (point-min))
807 ((re-search-forward "^ERROR:.*$" nil t)
808 (pop-to-buffer (current-buffer))
809 (message "Update index at %s...%s"
810 default-directory (match-string 0))
811 (setq gnus-namazu/update-directories nil))
812 ((and (eq 'exit (process-status process))
813 (zerop (process-exit-status process)))
814 (message "Update index at %s...done" default-directory)
815 (unless (or debug-on-error debug-on-quit)
816 (kill-buffer buffer)))))))
817 (setq gnus-namazu/update-process nil)
818 (unless (gnus-namazu-update-indices (cdr gnus-namazu/update-directories)
819 (car gnus-namazu/update-directories))
820 (gnus-namazu/make-directory-table t)))
823 (defun gnus-namazu-stop-update ()
824 "Stop the running indexer of Namazu."
826 (setq gnus-namazu/update-directories nil)
827 (and gnus-namazu/update-process
828 (processp gnus-namazu/update-process)
829 (kill-process gnus-namazu/update-process)))
831 (let (current-load-list)
832 (defadvice gnus-offer-save-summaries
833 (before gnus-namazu-kill-summary-buffers activate compile)
834 "Advised by `gnus-namazu'.
835 In order to avoid annoying questions, kill summary buffers which
836 generated by `gnus-namazu' itself before `gnus-offer-save-summaries'
838 (let ((buffers (buffer-list)))
840 (when (with-current-buffer (car buffers)
841 (and (eq major-mode 'gnus-summary-mode)
842 (gnus-ephemeral-group-p gnus-newsgroup-name)
843 (string-match gnus-namazu/group-name-regexp
844 gnus-newsgroup-name)))
845 (kill-buffer (car buffers)))
846 (setq buffers (cdr buffers))))))
849 (defun gnus-namazu-insinuate ()
851 'gnus-group-mode-hook
853 (define-key gnus-group-mode-map "\C-c\C-n" 'gnus-namazu-search)))
855 'gnus-summary-mode-hook
857 (define-key gnus-summary-mode-map "\C-c\C-n" 'gnus-namazu-search))))
859 (provide 'gnus-namazu)
861 ;; gnus-namazu.el ends here.