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 3, 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, see <http://www.gnu.org/licenses/>.
25 ;; This file defines the command to search mails and persistent
26 ;; articles with Namazu and to browse its results with Gnus.
28 ;; Namazu is a full-text search engine intended for easy use. For
29 ;; more detail about Namazu, visit the following page:
36 ;; If this module has already been installed, only four steps are
37 ;; required to search articles with this module.
39 ;; (1) Install Namazu.
41 ;; (2) Put this expression into your ~/.gnus.
43 ;; (gnus-namazu-insinuate)
45 ;; (3) Start Gnus and type M-x gnus-namazu-create-index RET to make
48 ;; (4) In group buffer or in summary buffer, type C-c C-n query RET.
53 ;; Before installing this module, you must install Namazu.
55 ;; When you would like to byte-compile this module in Gnus, put this
56 ;; file into the lisp/ directory in the Gnus source tree and run `make
57 ;; install'. And then, put the following expression into your
60 ;; (gnus-namazu-insinuate)
62 ;; In order to make index of articles with Namazu before using this
63 ;; module, type M-x gnus-namazu-create-index RET. Otherwise, you can
64 ;; create index by yourself with the following commands:
66 ;; % mkdir ~/News/namazu
67 ;; % mknmz -a -h -O ~/News/namazu ~/Mail ~/News/cache
69 ;; The first command makes the directory for index files, and the
70 ;; second command generates index files of mails and persistent
73 ;; In order to update indices for incoming articles, this module
74 ;; automatically runs mknmz, the indexer of Namazu, at an interval of
75 ;; 3 days; this period is set to `gnus-namazu-index-update-interval'.
77 ;; Indices will be updated when `gnus-namazu-search' is called. If
78 ;; you want to update indices everywhen Gnus is started, you can put
79 ;; the following expression to your ~/.gnus.
81 ;; (add-hook 'gnus-startup-hook 'gnus-namazu-update-all-indices)
83 ;; In order to control mknmz closely, disable the automatic updating
84 ;; feature and run mknmz by yourself. In this case, set nil to the
87 ;; (setq gnus-namazu-index-update-interval nil)
89 ;; When your index is put into the directory other than the default
90 ;; one (~/News/namazu), it is necessary to set its place to
91 ;; `gnus-namazu-index-directories' as follows:
93 ;; (setq gnus-namazu-index-directories
94 ;; (list (expand-file-name "~/namazu")))
99 (eval-when-compile (require 'cl))
106 ;; To suppress byte-compile warning.
108 (defvar nnml-directory)
109 (defvar nnmh-directory))
112 (defgroup gnus-namazu nil
113 "Search nnmh and nnml groups in Gnus with Namazu."
116 :prefix "gnus-namazu-")
118 (defconst gnus-namazu-default-index-directory
119 (expand-file-name "namazu" gnus-directory)
120 "Default place of Namazu index files.")
122 (defcustom gnus-namazu-index-directories
124 (or (and (boundp 'gnus-namazu-index-directory)
125 (symbol-value 'gnus-namazu-index-directory))
126 (and (boundp 'nnir-namazu-index-directory)
127 (symbol-value 'nnir-namazu-index-directory))
128 gnus-namazu-default-index-directory))
129 "*Places of Namazu index files."
130 :type '(repeat directory)
133 (defcustom gnus-namazu-command
134 (or (and (boundp 'namazu-command)
135 (symbol-value 'namazu-command))
136 (and (boundp 'nnir-namazu-program)
137 (symbol-value 'nnir-namazu-program))
139 "*Name of the executable file of Namazu."
143 (defcustom gnus-namazu-command-prefix nil
144 "*Prefix commands to execute Namazu.
145 If you put your index on a remote server, set this option as follows:
147 (setq gnus-namazu-command-prefix
148 '(\"ssh\" \"-x\" \"remote-server\"))
150 This makes gnus-namazu execute \"ssh -x remote-server namazu ...\"
151 instead of executing \"namazu\" directly."
152 :type '(repeat string)
155 (defcustom gnus-namazu-additional-arguments nil
156 "*Additional arguments of Namazu.
157 The options `-q', `-a', and `-l' are always used, very few other
158 options make any sense in this context."
159 :type '(repeat string)
162 (defcustom gnus-namazu-index-update-interval
163 259200 ; 3 days == 259200 seconds.
164 "*Number of seconds between running the indexer of Namazu."
165 :type '(choice (const :tag "Never run the indexer" nil)
166 (integer :tag "Number of seconds"))
169 (defcustom gnus-namazu-make-index-command "mknmz"
170 "*Name of the executable file of the indexer of Namazu."
174 (defcustom gnus-namazu-make-index-arguments
176 (list "--all" "--mailnews" "--deny=^.*[^0-9].*$")
177 (when (and (boundp 'current-language-environment)
179 (symbol-value 'current-language-environment)))
180 (list "--indexing-lang=ja")))
181 "*Arguments of the indexer of Namazu."
182 :type '(repeat string)
185 (defcustom gnus-namazu-field-keywords
186 '("date" "from" "newsgroups" "size" "subject" "summary" "to" "uri")
187 "*List of keywords to do field-search."
188 :type '(repeat string)
191 (defcustom gnus-namazu-coding-system
192 (if (memq system-type '(windows-nt OS/2 emx))
195 "*Coding system for Namazu process."
199 (defcustom gnus-namazu-need-path-normalization
200 (and (memq system-type '(windows-nt OS/2 emx)) t)
201 "*Non-nil means that outputs of namazu may contain drive letters."
205 (defcustom gnus-namazu-case-sensitive-filesystem
206 (not (eq system-type 'windows-nt))
207 "*Non-nil means that the using file system distinguishes cases of characters."
211 (defcustom gnus-namazu-query-highlight t
212 "Non-nil means that queried words is highlighted."
216 (defface gnus-namazu-query-highlight-face
217 '((((type tty pc) (class color))
218 (:background "magenta4" :foreground "cyan1"))
219 (((class color) (background light))
220 (:background "magenta4" :foreground "lightskyblue1"))
221 (((class color) (background dark))
222 (:background "palevioletred2" :foreground "brown4"))
223 (t (:inverse-video t)))
224 "Face used for namazu query matching words."
227 (defcustom gnus-namazu-remote-groups nil
228 "*Alist of regular expressions matching remote groups and their base paths.
229 If you use an IMAP server and have a special index, set this option as
232 (setq gnus-namazu-remote-groups
233 '((\"^nnimap\\\\+server:INBOX\\\\.\" . \"~/Maildir/.\")))
235 This means that the group \"nnimap+server:INBOX.group\" is placed in
236 \"~/Maildir/.group\"."
239 (cons (choice (regexp :tag "Regexp of group name")
240 (const :tag "Groups served by `gnus-select-method'" t))
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
339 (list (if gnus-namazu-command-prefix
340 (concat "'" query "'")
342 gnus-namazu-index-directories)))
343 (apply 'call-process (car commands) nil t nil (cdr commands))))
345 (defvar gnus-namazu/directory-table nil)
346 (defun gnus-namazu/make-directory-table (&optional force)
347 (interactive (list t))
348 (unless (and (not force)
349 gnus-namazu/directory-table
350 (eq gnus-namazu-case-sensitive-filesystem
351 (car gnus-namazu/directory-table)))
352 (let ((table (make-vector (length gnus-newsrc-hashtb) 0))
353 cache agent alist dir method)
356 (unless (gnus-ephemeral-group-p (setq group (symbol-name group)))
357 (when (file-directory-p
358 (setq dir (file-name-as-directory
359 (gnus-cache-file-name group ""))))
360 (push (cons dir group) cache))
361 (when (file-directory-p
362 (setq dir (gnus-agent-group-pathname group)))
363 (push (cons dir group) agent))
364 (when (memq (car (setq method (gnus-find-method-for-group group)))
366 (when (file-directory-p
367 (setq dir (let (file-name-handler-alist)
368 (nnmail-group-pathname
369 (gnus-group-short-name group)
370 (gnus-namazu/server-directory method)))))
371 (push (cons dir group) alist)))
372 (dolist (pair gnus-namazu-remote-groups)
374 (or (and (eq t (car pair))
375 (gnus-method-equal method gnus-select-method)
377 (and (stringp (car pair))
378 (string-match (car pair) group)
379 (substring group (match-end 0)))))
380 (setq dir (let (file-name-handler-alist)
381 (nnmail-group-pathname dir "/")))
382 (push (cons (concat (cdr pair)
383 ;; nnmail-group-pathname() on some
384 ;; systems returns pathnames which
385 ;; have drive letters at their top.
386 (substring dir (1+ (string-match "/" dir))))
390 (dolist (pair (nconc agent cache alist))
391 (set (intern (if gnus-namazu-case-sensitive-filesystem
393 (downcase (car pair)))
396 (setq gnus-namazu/directory-table
397 (cons gnus-namazu-case-sensitive-filesystem table)))))
399 (defun gnus-namazu/search (groups query)
400 (gnus-namazu/make-directory-table)
402 (let ((exit-status (gnus-namazu/call-namazu query)))
403 (unless (zerop exit-status)
404 (error "Namazu finished abnormally: %d" exit-status)))
405 (gnus-namazu/normalize-results)
406 (goto-char (point-min))
407 (let (articles group)
409 (setq group (buffer-substring-no-properties
413 ;; NOTE: Only numeric characters are permitted
414 ;; as file names of articles.
415 (skip-chars-backward "0-9")
419 (intern-soft (if gnus-namazu-case-sensitive-filesystem
422 (cdr gnus-namazu/directory-table))))
424 (member group groups))
425 (push (gnus-namazu/make-article
428 (buffer-substring-no-properties (point)
432 (nreverse articles))))
435 (defun gnus-namazu/get-target-groups ()
437 ((eq major-mode 'gnus-group-mode)
441 (gnus-group-process-prefix current-prefix-arg))
443 (prog1 gnus-group-marked (gnus-group-unmark-all-groups)))))
444 ((eq major-mode 'gnus-summary-mode)
445 ;; In Summary buffer.
446 (if current-prefix-arg
447 (list (gnus-read-group "Group: "))
449 (gnus-ephemeral-group-p gnus-newsgroup-name)
450 (string-match gnus-namazu/group-name-regexp gnus-newsgroup-name))
451 (cadr (assq 'gnus-namazu-target-groups
452 (gnus-info-method (gnus-get-info gnus-newsgroup-name))))
453 (list gnus-newsgroup-name))))))
455 (defun gnus-namazu/get-current-query ()
456 (and (eq major-mode 'gnus-summary-mode)
457 (gnus-ephemeral-group-p gnus-newsgroup-name)
458 (string-match gnus-namazu/group-name-regexp gnus-newsgroup-name)
459 (cadr (assq 'gnus-namazu-current-query
460 (gnus-info-method (gnus-get-info gnus-newsgroup-name))))))
462 (defvar gnus-namazu/read-query-original-buffer nil)
463 (defvar gnus-namazu/read-query-prompt nil)
464 (defvar gnus-namazu/read-query-history nil)
466 (defun gnus-namazu/get-current-subject ()
467 (and gnus-namazu/read-query-original-buffer
468 (bufferp gnus-namazu/read-query-original-buffer)
469 (with-current-buffer gnus-namazu/read-query-original-buffer
470 (when (eq major-mode 'gnus-summary-mode)
471 (let ((s (gnus-summary-article-subject)))
472 ;; Remove typically prefixes of mailing lists.
474 "^\\(\\[[^]]*[0-9]+\\]\\|([^)]*[0-9]+)\\)\\s-*" s)
475 (setq s (substring s (match-end 0))))
477 "^\\(Re\\(\\^?\\([0-9]+\\|\\[[0-9]+\\]\\)\\)?:\\s-*\\)+" s)
478 (setq s (substring s (match-end 0))))
479 (when (string-match "\\s-*(\\(re\\|was\\)\\b" s)
480 (setq s (substring s 0 (match-beginning 0))))
483 (defun gnus-namazu/get-current-from ()
484 (and gnus-namazu/read-query-original-buffer
485 (bufferp gnus-namazu/read-query-original-buffer)
486 (with-current-buffer gnus-namazu/read-query-original-buffer
487 (when (eq major-mode 'gnus-summary-mode)
488 (cadr (mail-extract-address-components
490 (gnus-summary-article-header))))))))
492 (defun gnus-namazu/get-current-to ()
493 (and gnus-namazu/read-query-original-buffer
494 (bufferp gnus-namazu/read-query-original-buffer)
495 (with-current-buffer gnus-namazu/read-query-original-buffer
496 (when (eq major-mode 'gnus-summary-mode)
497 (cadr (mail-extract-address-components
498 (cdr (assq 'To (mail-header-extra
499 (gnus-summary-article-header))))))))))
501 (defmacro gnus-namazu/minibuffer-prompt-end ()
502 (if (fboundp 'minibuffer-prompt-end)
503 '(minibuffer-prompt-end)
506 (defun gnus-namazu/message (string &rest arguments)
508 gnus-namazu/read-query-prompt
509 (buffer-substring (gnus-namazu/minibuffer-prompt-end)
511 (s2 (apply (function format) string arguments))
516 (message (if (>= w 0)
517 (concat s1 (make-string w ?\ ) s2)
519 (if (sit-for 0.3) (message s1))
522 (defun gnus-namazu/complete-query ()
526 ((and (re-search-backward "\\+\\([-a-z]*\\)" nil t)
527 (= pos (match-end 0)))
528 (let* ((partial (match-string 1))
532 (mapcar 'list gnus-namazu-field-keywords))))
535 (gnus-namazu/message "No completions of %s" partial))
536 ((= 1 (length completions))
537 (goto-char (match-beginning 1))
538 (delete-region (match-beginning 1) (match-end 1))
539 (insert (car completions) ":")
541 (gnus-namazu/message "Completed"))
543 (let ((x (try-completion partial (mapcar 'list completions))))
544 (if (string= x partial)
545 (if (and (eq last-command
546 'gnus-namazu/field-keyword-completion)
547 completion-auto-help)
548 (with-output-to-temp-buffer "*Completions*"
549 (display-completion-list completions))
550 (gnus-namazu/message "Sole completion"))
551 (goto-char (match-beginning 1))
552 (delete-region (match-beginning 1) (match-end 1))
554 (setq pos (point))))))))
555 ((and (looking-at "\\+subject:")
556 (= pos (match-end 0)))
557 (let ((s (gnus-namazu/get-current-subject)))
561 (setq pos (point)))))
562 ((and (looking-at "\\+from:")
563 (= pos (match-end 0)))
564 (let ((f (gnus-namazu/get-current-from)))
568 (setq pos (point)))))
569 ((and (looking-at "\\+to:")
570 (= pos (match-end 0)))
571 (let ((to (gnus-namazu/get-current-to)))
574 (insert "\"" to "\"")
575 (setq pos (point))))))
578 (defvar gnus-namazu/read-query-map
579 (let ((keymap (copy-keymap minibuffer-local-map)))
580 (define-key keymap "\t" 'gnus-namazu/complete-query)
583 (defun gnus-namazu/read-query (prompt &optional initial)
584 (let ((gnus-namazu/read-query-original-buffer (current-buffer))
585 (gnus-namazu/read-query-prompt prompt))
587 (when (setq initial (gnus-namazu/get-current-query))
588 (setq initial (cons initial 0))))
589 (read-from-minibuffer prompt initial gnus-namazu/read-query-map nil
590 'gnus-namazu/read-query-history)))
592 (defun gnus-namazu/highlight-words (query)
595 ;; Remove tokens for NOT search
596 (goto-char (point-min))
597 (while (re-search-forward "[
\e$B!!
\e(B \t\r\f\n]+not[
\e$B!!
\e(B \t\r\f\n]+\
598 \\([^
\e$B!!
\e(B \t\r\f\n\"{(/]+\\|\"[^\"]+\"\\|{[^}]+}\\|([^)]+)\\|/[^/]+/\\)+" nil t)
599 (delete-region (match-beginning 0) (match-end 0)))
600 ;; Remove tokens for Field search
601 (goto-char (point-min))
602 (while (re-search-forward "[
\e$B!!
\e(B \t\r\f\n]+\\+[^
\e$B!!
\e(B \t\r\f\n:]+:\
603 \\([^
\e$B!!
\e(B \t\r\f\n\"{(/]+\\|\"[^\"]+\"\\|{[^}]+}\\|([^)]+)\\|/[^/]+/\\)+" nil t)
604 (delete-region (match-beginning 0) (match-end 0)))
605 ;; Remove tokens for Regexp search
606 (goto-char (point-min))
607 (while (re-search-forward "/[^/]+/" nil t)
608 (delete-region (match-beginning 0) (match-end 0)))
609 ;; Remove brackets, double quote, asterisk and operators
610 (goto-char (point-min))
611 (while (re-search-forward "\\([(){}\"*]\\|\\b\\(and\\|or\\)\\b\\)" nil t)
612 (delete-region (match-beginning 0) (match-end 0)))
613 ;; Collect all keywords
615 (goto-char (point-min))
616 (while (re-search-forward "[^
\e$B!!
\e(B \t\r\f\n]+" nil t)
617 (push (match-string 0) query))
621 (if (string-match "\\cj" q)
626 (list (list (concat "\\b\\(" (regexp-opt en) "\\)\\b")
627 0 0 'gnus-namazu-query-highlight-face)))
629 (list (list (regexp-opt ja)
630 0 0 'gnus-namazu-query-highlight-face))))))))
632 (defun gnus-namazu/truncate-article-list (articles)
633 (let ((hit (length articles)))
634 (when (and gnus-large-newsgroup
635 (> hit gnus-large-newsgroup))
636 (let* ((cursor-in-echo-area nil)
637 (input (read-from-minibuffer
639 Too many articles were retrieved. How many articles (max %d): "
641 (cons (number-to-string gnus-large-newsgroup) 0))))
642 (unless (string-match "\\`[ \t]*\\'" input)
643 (setcdr (nthcdr (min (1- (string-to-number input)) hit) articles)
648 (defun gnus-namazu-search (groups query)
649 "Search QUERY through GROUPS with Namazu,
650 and make a virtual group contains its results."
653 (gnus-namazu/get-target-groups)
654 (gnus-namazu/read-query "Enter query: ")))
656 (let ((articles (gnus-namazu/search groups query)))
658 (let ((real-groups groups)
660 (apply (function format)
661 "nnvirtual:namazu-search?query=%s&groups=%s&id=%d%d%d"
663 (if groups (mapconcat 'identity groups ",") "ALL")
665 (gnus-namazu/truncate-article-list articles)
668 (add-to-list 'real-groups (gnus-namazu/article-group a))))
669 ;; Generate virtual group which includes all results.
670 (when (fboundp 'gnus-group-decoded-name)
672 (encode-coding-string vgroup gnus-namazu-coding-system)))
674 (gnus-group-read-ephemeral-group
677 (nnvirtual-component-groups ,real-groups)
678 (gnus-namazu-target-groups ,groups)
679 (gnus-namazu-current-query ,query))
680 t (cons (current-buffer) (current-window-configuration)) t))
681 (when gnus-namazu-query-highlight
682 (gnus-group-set-parameter vgroup 'highlight-words
683 (gnus-namazu/highlight-words query)))
684 ;; Generate new summary buffer which contains search results.
685 (gnus-group-read-group
687 (sort (delq nil ;; Ad-hoc fix, to avoid wrong-type-argument error.
690 (nnvirtual-reverse-map-article
691 (gnus-namazu/article-group a)
692 (gnus-namazu/article-number a)))
695 (message "No entry."))))
697 (defmacro gnus-namazu/lock-file-name (&optional directory)
698 `(expand-file-name "NMZ.lock2" ,directory))
700 (defmacro gnus-namazu/status-file-name (&optional directory)
701 `(expand-file-name "NMZ.status" ,directory))
703 (defmacro gnus-namazu/index-file-name (&optional directory)
704 `(expand-file-name "NMZ.i" ,directory))
706 (defun gnus-namazu/mknmz-cleanup (directory)
707 (let ((lockfile (gnus-namazu/lock-file-name directory)))
708 (when (file-exists-p lockfile)
709 (delete-file lockfile)
710 (dolist (tmpfile (directory-files directory t "\\`NMZ\\..*\\.tmp\\'" t))
711 (delete-file tmpfile)))))
714 (defun gnus-namazu-create-index (directory &optional target-directories force)
715 "Create index under DIRECTORY."
718 (if (and current-prefix-arg (> (length gnus-namazu-index-directories) 1))
719 (completing-read "Directory: "
720 (mapcar 'list gnus-namazu-index-directories) nil t)
721 (gnus-namazu/default-index-directory))
723 (setq directory (file-name-as-directory (expand-file-name directory)))
724 (unless target-directories
725 (setq target-directories
727 (mapcar (lambda (dir)
728 (when (file-directory-p dir) dir))
730 (mapcar 'gnus-namazu/server-directory
731 (gnus-namazu/indexed-servers))
733 (expand-file-name gnus-cache-directory)
734 (expand-file-name gnus-agent-directory)))))))
735 (if (file-exists-p (gnus-namazu/lock-file-name directory))
737 (error "Found lock file: %s" (gnus-namazu/lock-file-name directory)))
739 (get-buffer-create (concat " *mknmz*" directory))
741 (unless (file-directory-p directory)
742 (make-directory directory t))
743 (setq default-directory directory)
744 (let ((args (append gnus-namazu-make-index-arguments
745 target-directories)))
746 (insert "% " gnus-namazu-make-index-command " "
747 (mapconcat 'identity args " ") "\n")
748 (goto-char (point-max))
750 (pop-to-buffer (current-buffer)))
751 (message "Make index at %s..." directory)
753 (apply 'call-process gnus-namazu-make-index-command nil t t args)
754 (gnus-namazu/mknmz-cleanup directory))
755 (message "Make index at %s...done" directory)
757 (kill-buffer (current-buffer)))))
758 (gnus-namazu/make-directory-table t)))
760 (defun gnus-namazu/lapse-seconds (start end)
761 "Return lapse seconds from START to END.
762 START and END are lists which represent time in Emacs-style."
763 (+ (* (- (car end) (car start)) 65536)
767 (defun gnus-namazu/index-old-p (directory)
768 "Return non-nil value when the index under the DIRECTORY is older
769 than the period that is set to `gnus-namazu-index-update-interval'"
770 (let ((file (gnus-namazu/index-file-name directory)))
771 (or (not (file-exists-p file))
772 (and (integerp gnus-namazu-index-update-interval)
773 (>= (gnus-namazu/lapse-seconds
774 (nth 5 (file-attributes file))
776 gnus-namazu-index-update-interval)))))
778 (defvar gnus-namazu/update-directories nil)
779 (defvar gnus-namazu/update-process nil)
781 (defun gnus-namazu/update-p (directory &optional force)
782 "Return the DIRECTORY when the index undef the DIRECTORY should be updated."
783 (setq directory (file-name-as-directory (expand-file-name directory)))
784 (gmm-labels ((error-message (format &rest args)
785 (apply (if force 'error 'message) format args)
787 (if gnus-namazu/update-process
788 (error-message "%s" "Can not run two update processes simultaneously")
790 (gnus-namazu/index-old-p directory))
791 (let ((status-file (gnus-namazu/status-file-name directory)))
792 (or (file-exists-p status-file)
793 (error-message "Can not find status file: %s" status-file)))
794 (let ((lock-file (gnus-namazu/lock-file-name directory)))
795 (or (not (file-exists-p lock-file))
796 (error-message "Found lock file: %s" lock-file)))
800 (defun gnus-namazu-update-index (directory &optional force)
801 "Update the index under the DIRECTORY."
804 (if (and current-prefix-arg (> (length gnus-namazu-index-directories) 1))
805 (completing-read "Directory: "
806 (mapcar 'list gnus-namazu-index-directories) nil t)
807 (gnus-namazu/default-index-directory))
809 (when (setq directory (gnus-namazu/update-p directory force))
810 (with-current-buffer (get-buffer-create (concat " *mknmz*" directory))
811 (buffer-disable-undo)
813 (unless (file-directory-p directory)
814 (make-directory directory t))
815 (setq default-directory directory)
816 (let ((proc (start-process gnus-namazu-make-index-command
818 gnus-namazu-make-index-command
819 (format "--update=%s" directory))))
821 (prog1 (setq gnus-namazu/update-process proc)
822 (process-kill-without-query proc)
823 (set-process-sentinel proc 'gnus-namazu/update-sentinel)
824 (add-hook 'kill-emacs-hook 'gnus-namazu-stop-update)
825 (message "Update index at %s..." directory))
826 (goto-char (point-min))
827 (if (re-search-forward "^ERROR:.*$" nil t)
829 (pop-to-buffer (current-buffer))
830 (funcall (if force 'error 'message)
831 "Update index at %s...%s" directory (match-string 0)))
832 (kill-buffer (current-buffer))
833 (funcall (if force 'error 'message)
834 "Can not start %s" gnus-namazu-make-index-command))
838 (defun gnus-namazu-update-all-indices (&optional force)
839 "Update all indices which is set to `gnus-namazu-index-directories'."
840 (interactive (list t))
841 (gnus-namazu-update-indices gnus-namazu-index-directories force))
843 (defun gnus-namazu-update-indices (&optional directories force)
844 (when (setq directories
845 (delq nil (mapcar (lambda (d)
846 (gnus-namazu/update-p d force))
848 (setq gnus-namazu/update-directories (cons force (cdr directories)))
849 (gnus-namazu-update-index (car directories) force)))
851 (defun gnus-namazu/update-sentinel (process event)
852 (let ((buffer (process-buffer process)))
853 (when (buffer-name buffer)
854 (with-current-buffer buffer
855 (gnus-namazu/mknmz-cleanup default-directory)
856 (goto-char (point-min))
858 ((re-search-forward "^ERROR:.*$" nil t)
859 (pop-to-buffer (current-buffer))
860 (message "Update index at %s...%s"
861 default-directory (match-string 0))
862 (setq gnus-namazu/update-directories nil))
863 ((and (eq 'exit (process-status process))
864 (zerop (process-exit-status process)))
865 (message "Update index at %s...done" default-directory)
866 (unless (or debug-on-error debug-on-quit)
867 (kill-buffer buffer)))))))
868 (setq gnus-namazu/update-process nil)
869 (unless (gnus-namazu-update-indices (cdr gnus-namazu/update-directories)
870 (car gnus-namazu/update-directories))
871 (gnus-namazu/make-directory-table t)))
874 (defun gnus-namazu-stop-update ()
875 "Stop the running indexer of Namazu."
877 (setq gnus-namazu/update-directories nil)
878 (and gnus-namazu/update-process
879 (processp gnus-namazu/update-process)
880 (kill-process gnus-namazu/update-process)))
882 (let (current-load-list)
883 (defadvice gnus-offer-save-summaries
884 (before gnus-namazu-kill-summary-buffers activate compile)
885 "Advised by `gnus-namazu'.
886 In order to avoid annoying questions, kill summary buffers which
887 generated by `gnus-namazu' itself before `gnus-offer-save-summaries'
889 (let ((buffers (buffer-list)))
891 (when (with-current-buffer (car buffers)
892 (and (eq major-mode 'gnus-summary-mode)
893 (gnus-ephemeral-group-p gnus-newsgroup-name)
894 (string-match gnus-namazu/group-name-regexp
895 gnus-newsgroup-name)))
896 (kill-buffer (car buffers)))
897 (setq buffers (cdr buffers))))))
900 (defun gnus-namazu-insinuate ()
902 'gnus-group-mode-hook
904 (define-key gnus-group-mode-map "\C-c\C-n" 'gnus-namazu-search)))
906 'gnus-summary-mode-hook
908 (define-key gnus-summary-mode-map "\C-c\C-n" 'gnus-namazu-search))))
910 (provide 'gnus-namazu)
912 ;; gnus-namazu.el ends here.