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[emacs.git] / lisp / log-view.el
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1 ;;; log-view.el --- Major mode for browsing RCS/CVS/SCCS log output
3 ;; Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
5 ;; Author: Stefan Monnier <monnier@cs.yale.edu>
6 ;; Keywords: rcs sccs cvs log version-control
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs 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)
13 ;; any later version.
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
25 ;;; Commentary:
27 ;; Todo:
29 ;; - add compatibility with cvs-log.el
30 ;; - add ability to modify a log-entry (via cvs-mode-admin ;-)
31 ;; - remove references to cvs-*
33 ;;; Code:
35 (eval-when-compile (require 'cl))
36 (require 'pcvs-util)
37 (autoload 'vc-version-diff "vc")
39 (defgroup log-view nil
40 "Major mode for browsing log output of RCS/CVS/SCCS."
41 :group 'pcl-cvs
42 :prefix "log-view-")
44 (easy-mmode-defmap log-view-mode-map
45 '(("q" . quit-window)
46 ("z" . kill-this-buffer)
47 ("m" . set-mark-command)
48 ;; ("e" . cvs-mode-edit-log)
49 ("d" . log-view-diff)
50 ("f" . log-view-find-version)
51 ("n" . log-view-msg-next)
52 ("p" . log-view-msg-prev)
53 ("N" . log-view-file-next)
54 ("P" . log-view-file-prev)
55 ("\M-n" . log-view-file-next)
56 ("\M-p" . log-view-file-prev))
57 "Log-View's keymap."
58 :group 'log-view
59 ;; Here I really need either buffer-local keymap-inheritance
60 ;; or a minor-mode-map with lower precedence than the local map.
61 :inherit (if (boundp 'cvs-mode-map) cvs-mode-map))
63 (defvar log-view-mode-hook nil
64 "Hook run at the end of `log-view-mode'.")
66 (defface log-view-file-face
67 '((((class color) (background light))
68 (:background "grey70" :weight bold))
69 (t (:weight bold)))
70 "Face for the file header line in `log-view-mode'."
71 :group 'log-view)
72 (defvar log-view-file-face 'log-view-file-face)
74 (defface log-view-message-face
75 '((((class color) (background light))
76 (:background "grey85"))
77 (t (:weight bold)))
78 "Face for the message header line in `log-view-mode'."
79 :group 'log-view)
80 (defvar log-view-message-face 'log-view-message-face)
82 (defconst log-view-file-re
83 (concat "^\\("
84 "Working file: \\(.+\\)"
85 "\\|SCCS/s\\.\\(.+\\):"
86 "\\)\n"))
87 ;; In RCS, a locked revision will look like "revision N.M\tlocked by: FOO".
88 (defconst log-view-message-re "^\\(revision \\([.0-9]+\\)\\(?:\t.*\\)?\\|rev \\([0-9]+\\): .*\\|D \\([.0-9]+\\) .*\\)$")
90 (defconst log-view-font-lock-keywords
91 `((,log-view-file-re
92 (2 (if (boundp 'cvs-filename-face) cvs-filename-face) nil t)
93 (3 (if (boundp 'cvs-filename-face) cvs-filename-face) nil t)
94 (0 log-view-file-face append))
95 (,log-view-message-re . log-view-message-face)))
96 (defconst log-view-font-lock-defaults
97 '(log-view-font-lock-keywords t nil nil nil))
99 ;;;;
100 ;;;; Actual code
101 ;;;;
103 ;;;###autoload
104 (define-derived-mode log-view-mode fundamental-mode "Log-View"
105 "Major mode for browsing CVS log output."
106 (setq buffer-read-only t)
107 (set (make-local-variable 'font-lock-defaults) log-view-font-lock-defaults)
108 (set (make-local-variable 'cvs-minor-wrap-function) 'log-view-minor-wrap))
110 ;;;;
111 ;;;; Navigation
112 ;;;;
114 ;; define log-view-{msg,file}-{next,prev}
115 (easy-mmode-define-navigation log-view-msg log-view-message-re "log message")
116 (easy-mmode-define-navigation log-view-file log-view-file-re "file")
118 (defun log-view-goto-rev (rev)
119 (goto-char (point-min))
120 (ignore-errors
121 (while (not (equal rev (log-view-current-tag)))
122 (log-view-msg-next))
125 ;;;;
126 ;;;; Linkage to PCL-CVS (mostly copied from cvs-status.el)
127 ;;;;
129 (defconst log-view-dir-re "^cvs[.ex]* [a-z]+: Logging \\(.+\\)$")
131 (defun log-view-current-file ()
132 (save-excursion
133 (forward-line 1)
134 (or (re-search-backward log-view-file-re nil t)
135 (re-search-forward log-view-file-re))
136 (let* ((file (or (match-string 2) (match-string 3)))
137 (cvsdir (and (re-search-backward log-view-dir-re nil t)
138 (match-string 1)))
139 (pcldir (and (boundp 'cvs-pcl-cvs-dirchange-re)
140 (re-search-backward cvs-pcl-cvs-dirchange-re nil t)
141 (match-string 1)))
142 (dir ""))
143 (let ((default-directory ""))
144 (when pcldir (setq dir (expand-file-name pcldir dir)))
145 (when cvsdir (setq dir (expand-file-name cvsdir dir))))
146 (expand-file-name file dir))))
148 (defun log-view-current-tag (&optional where)
149 (save-excursion
150 (when where (goto-char where))
151 (forward-line 1)
152 (let ((pt (point)))
153 (when (re-search-backward log-view-message-re nil t)
154 (let ((rev (or (match-string 2) (match-string 3) (match-string 4))))
155 (unless (re-search-forward log-view-file-re pt t)
156 rev))))))
158 (defun log-view-minor-wrap (buf f)
159 (let ((data (with-current-buffer buf
160 (cons
161 (cons (log-view-current-file)
162 (log-view-current-tag))
163 (when mark-active
164 (save-excursion
165 (goto-char (mark))
166 (cons (log-view-current-file)
167 (log-view-current-tag))))))))
168 (let ((cvs-branch-prefix (cdar data))
169 (cvs-secondary-branch-prefix (and (cdar data) (cddr data)))
170 (cvs-minor-current-files
171 (cons (caar data)
172 (when (and (cadr data) (not (equal (caar data) (cadr data))))
173 (list (cadr data)))))
174 ;; FIXME: I need to force because the fileinfos are UNKNOWN
175 (cvs-force-command "/F"))
176 (funcall f))))
178 (defun log-view-find-version (pos)
179 "Visit the version at point."
180 (interactive "d")
181 (save-excursion
182 (goto-char pos)
183 (switch-to-buffer (vc-find-version (log-view-current-file)
184 (log-view-current-tag)))))
187 ;; diff
190 (defun log-view-diff (beg end)
191 "Get the diff for several revisions.
192 If the point is the same as the mark, get the diff for this revision.
193 Otherwise, get the diff between the revisions
194 were the region starts and ends."
195 (interactive
196 (list (if mark-active (region-beginning) (point))
197 (if mark-active (region-end) (point))))
198 (let ((fr (log-view-current-tag beg))
199 (to (log-view-current-tag end)))
200 (when (string-equal fr to)
201 (save-excursion
202 (goto-char end)
203 (log-view-msg-next)
204 (setq to (log-view-current-tag))))
205 (vc-version-diff (log-view-current-file) to fr)))
207 (provide 'log-view)
209 ;;; arch-tag: 0d64220b-ce7e-4f62-9c2a-6b04c2f81f4f
210 ;;; log-view.el ends here