1 ;;; riece-log.el --- Save IRC logs
2 ;; Copyright (C) 2003 OHASHI Akira
3 ;; Copyright (C) 2004 Daiki Ueno
5 ;; Author: OHASHI Akira <bg66@koka-in.org>
6 ;; Daiki Ueno <ueno@unixuser.org>
7 ;; Keywords: IRC, riece
9 ;; This file is part of Riece.
11 ;; This program is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
16 ;; This program is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 ;; Boston, MA 02110-1301, USA.
28 ;;; NOTE: This is an add-on module for Riece.
32 (require 'riece-message)
33 (require 'riece-button)
36 (defgroup riece-log nil
41 (defcustom riece-log-directory
42 (expand-file-name "log" riece-directory)
43 "*Where to look for log files."
47 (defcustom riece-log-directory-map nil
48 "*The map of channel name and directory name."
49 :type '(repeat (cons (string :tag "Channel name")
50 (string :tag "Directory name")))
53 (defcustom riece-log-flashback 10
54 "*If non-nil, irc messages flash back from log files.
55 If integer, flash back only this line numbers. t means all lines."
56 :type '(choice (integer :tag "line numbers")
57 (const t :tag "of the day")
58 (const nil :tag "no flashback"))
61 (defcustom riece-log-coding-system nil
62 "*Coding system used for log files."
66 (defcustom riece-log-file-name-coding-system
67 (if (boundp 'file-name-coding-system)
68 file-name-coding-system)
69 "*Coding system used for filenames of log files."
73 (defface riece-log-date-face
76 (:foreground "Gray70"))
79 (:foreground "DimGray"))
82 "Face used for displaying \"(YYYY/MM/dd)\" extent."
83 :group 'riece-highlight-faces)
84 (defvar riece-log-date-face 'riece-log-date-face)
86 (defvar riece-log-lock-file nil
87 "Lock file for riece-log.
88 It is created if there is at least one instance of Emacs running riece-log.")
90 (defconst riece-log-file-name-regexp
91 (concat (riece-make-interval-regexp "[0-9]" 8) "\\.txt\\(\\.\\(.*\\)\\)?$"))
93 (defconst riece-log-description
96 (defun riece-log-display-message-function (message)
97 (if (get 'riece-log 'riece-addon-enabled)
98 (let* ((coding-system-for-write
100 (or riece-log-coding-system
101 (car (get-language-info current-language-environment
103 (file (riece-log-make-file-name (riece-message-target message)
104 coding-system-for-write))
105 file-name-coding-system
106 default-file-name-coding-system)
107 (unless (file-directory-p (file-name-directory file))
108 (make-directory (file-name-directory file) t))
109 (write-region (concat (format-time-string "%H:%M") " "
110 (riece-format-message message))
112 riece-log-lock-file))))
114 (defun riece-log-make-file-name (identity coding-system)
115 (expand-file-name (if (featurep 'mule)
117 (format-time-string "%Y%m%d")
120 (format-time-string "%Y%m%d")))
121 (riece-log-directory identity)))
123 (defun riece-log-list-files (identity time)
124 (let ((directory (riece-log-directory identity))
125 (time-prefix (format-time-string "%Y%m%d" (or time '(0 0))))
127 (when (file-directory-p directory)
128 (setq files (nreverse (sort (directory-files
130 (concat "^" riece-log-file-name-regexp)
134 (string-lessp (file-name-nondirectory (car files))
136 (setq files (cdr files)))
139 (defun riece-log-directory (identity)
140 (let ((prefix (riece-identity-canonicalize-prefix
141 (riece-identity-prefix identity)))
142 (server (riece-identity-server identity))
143 (map (assoc (riece-format-identity identity) riece-log-directory-map)))
145 (expand-file-name (cdr map) riece-log-directory)
146 (expand-file-name (riece-log-encode-file-name prefix)
148 (concat "." (riece-log-encode-file-name server))
149 riece-log-directory)))))
151 (defun riece-log-encode-file-name (file-name)
152 (if riece-log-file-name-coding-system
154 (encode-coding-string file-name
155 riece-log-file-name-coding-system)))
158 (while (string-match "[^-0-9A-Za-z_\x80-\xFF]" file-name index)
159 (setq c (aref file-name (match-beginning 0)))
161 (setq file-name (replace-match "==" nil t file-name)
162 index (1+ (match-end 0)))
163 (setq file-name (replace-match (format "=%02X" c) nil t file-name)
164 index (+ 2 (match-end 0)))))
167 (defun riece-log-decode-file-name (file-name)
169 (while (string-match "==\\|=\\([0-7][0-9A-F]\\)" file-name index)
170 (setq file-name (replace-match
171 (if (eq (aref file-name (1- (match-end 0))) ?=)
174 (car (read-from-string
175 (concat "?\\x" (match-string 1 file-name))))))
177 index (1+ (match-beginning 0))))
179 (if riece-log-file-name-coding-system
181 (decode-coding-string file-name
182 riece-log-file-name-coding-system)))
185 (defun riece-log-insert (identity lines)
186 "Insert logs for IDENTITY at most LINES.
187 If LINES is t, insert today's logs entirely."
188 (let* (file-name-coding-system
189 default-file-name-coding-system
190 (files (riece-log-list-files identity
191 (if (eq lines t) (current-time))))
192 name coding-system date point)
193 (while (and (or (eq lines t) (> lines 0)) files)
195 (narrow-to-region (point) (point))
196 (if (and (string-match
197 (concat "^" riece-log-file-name-regexp)
198 (setq name (file-name-nondirectory (car files))))
202 (intern (substring name (match-beginning 2))))
203 (if (featurep 'xemacs)
204 (setq coding-system (find-coding-system coding-system))
205 (unless (coding-system-p coding-system)
206 (setq coding-system nil)))
208 (let ((coding-system-for-read coding-system))
209 (insert-file-contents (car files)))
210 ;;don't insert file contents if they use non
211 ;;supported coding-system.
213 ;;if the filename has no coding-system suffix, decode with
214 ;;riece-log-coding-system.
215 (let ((coding-system-for-read riece-log-coding-system))
216 (insert-file-contents (car files))))
217 ;;lines in the file contents are in reversed order.
219 (goto-char (point-max))
220 (setq lines (- (forward-line (- lines))))
221 (delete-region (point-min) (point)))
222 ;;add (YYYY/MM/dd) suffix on each line left in the current buffer.
223 (unless (equal (substring name 0 8) (format-time-string "%Y%m%d"))
224 (setq date (concat " (" (substring name 0 4) "/"
225 (substring name 4 6) "/"
226 (substring name 6 8) ")"))
231 (put-text-property point (point)
232 'riece-overlay-face 'riece-log-date-face)
234 (goto-char (point-min))))
235 (setq files (cdr files)))))
237 (defun riece-log-flashback (identity)
238 (when riece-log-flashback
239 (riece-insert-info (current-buffer)
240 (if (eq riece-log-flashback t)
241 (riece-mcat "Recent messages of the day:\n")
243 "Recent messages up to %d lines:\n")
244 riece-log-flashback)))
245 (let (buffer-read-only
246 (point (goto-char (point-max))))
247 (insert (with-temp-buffer
248 (riece-log-insert identity riece-log-flashback)
251 (while (re-search-forward
252 (concat "^" riece-time-prefix-regexp
253 "\\(<[^>]+>\\|>[^<]+<\\|([^)]+)\\|{[^}]+}\\|=[^=]+=\\)")
255 (put-text-property (1+ (match-beginning 1)) (1- (match-end 1))
258 (buffer-substring (1+ (match-beginning 1))
260 (riece-identity-server identity))))
261 (run-hook-with-args 'riece-after-insert-functions
262 point (goto-char (point-max)))
263 (set-window-point (get-buffer-window (current-buffer))
266 (defun riece-log-dired (&optional channel)
268 (let ((directory (riece-log-directory (or channel riece-current-channel))))
269 (if (file-directory-p directory)
271 (error "No log directory"))))
273 (defun riece-log-requires ()
274 (if (memq 'riece-button riece-addons)
277 (defun riece-log-insinuate ()
278 (make-directory riece-log-directory t)
279 (setq riece-log-lock-file
280 (expand-file-name (format "!%s-%d-%d"
281 (riece-log-encode-file-name (system-name))
284 riece-log-directory))
285 ;; FIXME: Use `riece-after-insert-functions' for trapping change,
286 ;; notice, wallops and so on. But must add argument.
287 (add-hook 'riece-after-display-message-functions
288 'riece-log-display-message-function)
289 (add-hook 'riece-channel-buffer-create-functions
290 'riece-log-flashback))
292 (defun riece-log-uninstall ()
293 (setq riece-log-lock-file nil)
294 (remove-hook 'riece-after-display-message-functions
295 'riece-log-display-message-function)
296 (remove-hook 'riece-channel-buffer-create-functions
297 'riece-log-flashback))
299 (defvar riece-command-mode-map)
300 (defun riece-log-enable ()
301 (define-key riece-command-mode-map "\C-cd" 'riece-log-dired))
303 (defun riece-log-disable ()
304 (define-key riece-command-mode-map "\C-cd" nil))
308 ;;; riece-log.el ends here