Commit | Line | Data |
---|---|---|
f439c140 DN |
1 | ;;; vc-annotate.el --- VC Annotate Support |
2 | ||
3 | ;; Copyright (C) 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2006, | |
4 | ;; 2007, 2008 Free Software Foundation, Inc. | |
5 | ||
6 | ;; Author: Martin Lorentzson <emwson@emw.ericsson.se> | |
7 | ;; Maintainer: FSF | |
8 | ;; Keywords: tools | |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
13 | ;; it under the terms of the GNU General Public License as published by | |
14 | ;; the Free Software Foundation, either version 3 of the License, or | |
15 | ;; (at your option) any later version. | |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. | |
24 | ||
25 | ;;; Commentary: | |
26 | ;; | |
27 | ||
28 | (require 'vc-hooks) | |
29 | (require 'vc) | |
30 | ||
31 | ;;; Code: | |
32 | (eval-when-compile | |
33 | (require 'cl)) | |
34 | ||
35 | (defcustom vc-annotate-display-mode 'fullscale | |
36 | "Which mode to color the output of \\[vc-annotate] with by default." | |
37 | :type '(choice (const :tag "By Color Map Range" nil) | |
38 | (const :tag "Scale to Oldest" scale) | |
39 | (const :tag "Scale Oldest->Newest" fullscale) | |
40 | (number :tag "Specify Fractional Number of Days" | |
41 | :value "20.5")) | |
42 | :group 'vc) | |
43 | ||
44 | (defcustom vc-annotate-color-map | |
45 | (if (and (tty-display-color-p) (<= (display-color-cells) 8)) | |
46 | ;; A custom sorted TTY colormap | |
47 | (let* ((colors | |
48 | (sort | |
49 | (delq nil | |
50 | (mapcar (lambda (x) | |
51 | (if (not (or | |
52 | (string-equal (car x) "white") | |
53 | (string-equal (car x) "black") )) | |
54 | (car x))) | |
55 | (tty-color-alist))) | |
56 | (lambda (a b) | |
57 | (cond | |
58 | ((or (string-equal a "red") (string-equal b "blue")) t) | |
59 | ((or (string-equal b "red") (string-equal a "blue")) nil) | |
60 | ((string-equal a "yellow") t) | |
61 | ((string-equal b "yellow") nil) | |
62 | ((string-equal a "cyan") t) | |
63 | ((string-equal b "cyan") nil) | |
64 | ((string-equal a "green") t) | |
65 | ((string-equal b "green") nil) | |
66 | ((string-equal a "magenta") t) | |
67 | ((string-equal b "magenta") nil) | |
68 | (t (string< a b)))))) | |
69 | (date 20.) | |
70 | (delta (/ (- 360. date) (1- (length colors))))) | |
71 | (mapcar (lambda (x) | |
72 | (prog1 | |
73 | (cons date x) | |
74 | (setq date (+ date delta)))) colors)) | |
75 | ;; Normal colormap: hue stepped from 0-240deg, value=1., saturation=0.75 | |
76 | '(( 20. . "#FF3F3F") | |
77 | ( 40. . "#FF6C3F") | |
78 | ( 60. . "#FF993F") | |
79 | ( 80. . "#FFC63F") | |
80 | (100. . "#FFF33F") | |
81 | (120. . "#DDFF3F") | |
82 | (140. . "#B0FF3F") | |
83 | (160. . "#83FF3F") | |
84 | (180. . "#56FF3F") | |
85 | (200. . "#3FFF56") | |
86 | (220. . "#3FFF83") | |
87 | (240. . "#3FFFB0") | |
88 | (260. . "#3FFFDD") | |
89 | (280. . "#3FF3FF") | |
90 | (300. . "#3FC6FF") | |
91 | (320. . "#3F99FF") | |
92 | (340. . "#3F6CFF") | |
93 | (360. . "#3F3FFF"))) | |
94 | "Association list of age versus color, for \\[vc-annotate]. | |
95 | Ages are given in units of fractional days. Default is eighteen | |
96 | steps using a twenty day increment, from red to blue. For TTY | |
97 | displays with 8 or fewer colors, the default is red to blue with | |
98 | all other colors between (excluding black and white)." | |
99 | :type 'alist | |
100 | :group 'vc) | |
101 | ||
102 | (defcustom vc-annotate-very-old-color "#3F3FFF" | |
103 | "Color for lines older than the current color range in \\[vc-annotate]]." | |
104 | :type 'string | |
105 | :group 'vc) | |
106 | ||
107 | (defcustom vc-annotate-background "black" | |
108 | "Background color for \\[vc-annotate]. | |
109 | Default color is used if nil." | |
110 | :type '(choice (const :tag "Default background" nil) (color)) | |
111 | :group 'vc) | |
112 | ||
113 | (defcustom vc-annotate-menu-elements '(2 0.5 0.1 0.01) | |
114 | "Menu elements for the mode-specific menu of VC-Annotate mode. | |
115 | List of factors, used to expand/compress the time scale. See `vc-annotate'." | |
116 | :type '(repeat number) | |
117 | :group 'vc) | |
118 | ||
119 | (defvar vc-annotate-mode-map | |
120 | (let ((m (make-sparse-keymap))) | |
3cddaef1 DN |
121 | (define-key m "a" 'vc-annotate-revision-previous-to-line) |
122 | (define-key m "d" 'vc-annotate-show-diff-revision-at-line) | |
123 | (define-key m "D" 'vc-annotate-show-changeset-diff-revision-at-line) | |
f439c140 | 124 | (define-key m "f" 'vc-annotate-find-revision-at-line) |
3cddaef1 DN |
125 | (define-key m "j" 'vc-annotate-revision-at-line) |
126 | (define-key m "l" 'vc-annotate-show-log-revision-at-line) | |
127 | (define-key m "n" 'vc-annotate-next-revision) | |
128 | (define-key m "p" 'vc-annotate-prev-revision) | |
129 | (define-key m "w" 'vc-annotate-working-revision) | |
130 | (define-key m "v" 'vc-annotate-toggle-annotation-visibility) | |
f439c140 DN |
131 | m) |
132 | "Local keymap used for VC-Annotate mode.") | |
133 | ||
134 | ;;; Annotate functionality | |
135 | ||
136 | ;; Declare globally instead of additional parameter to | |
137 | ;; temp-buffer-show-function (not possible to pass more than one | |
138 | ;; parameter). The use of annotate-ratio is deprecated in favor of | |
139 | ;; annotate-mode, which replaces it with the more sensible "span-to | |
140 | ;; days", along with autoscaling support. | |
141 | (defvar vc-annotate-ratio nil "Global variable.") | |
142 | ||
143 | ;; internal buffer-local variables | |
144 | (defvar vc-annotate-backend nil) | |
145 | (defvar vc-annotate-parent-file nil) | |
146 | (defvar vc-annotate-parent-rev nil) | |
147 | (defvar vc-annotate-parent-display-mode nil) | |
148 | ||
149 | (defconst vc-annotate-font-lock-keywords | |
150 | ;; The fontification is done by vc-annotate-lines instead of font-lock. | |
151 | '((vc-annotate-lines))) | |
152 | ||
ffbda93a | 153 | (define-derived-mode vc-annotate-mode special-mode "Annotate" |
f439c140 DN |
154 | "Major mode for output buffers of the `vc-annotate' command. |
155 | ||
156 | You can use the mode-specific menu to alter the time-span of the used | |
157 | colors. See variable `vc-annotate-menu-elements' for customizing the | |
158 | menu items." | |
159 | ;; Frob buffer-invisibility-spec so that if it is originally a naked t, | |
160 | ;; it will become a list, to avoid initial annotations being invisible. | |
161 | (add-to-invisibility-spec 'foo) | |
162 | (remove-from-invisibility-spec 'foo) | |
163 | (set (make-local-variable 'truncate-lines) t) | |
164 | (set (make-local-variable 'font-lock-defaults) | |
ffbda93a | 165 | '(vc-annotate-font-lock-keywords t))) |
f439c140 DN |
166 | |
167 | (defun vc-annotate-toggle-annotation-visibility () | |
168 | "Toggle whether or not the annotation is visible." | |
169 | (interactive) | |
170 | (funcall (if (memq 'vc-annotate-annotation buffer-invisibility-spec) | |
171 | 'remove-from-invisibility-spec | |
172 | 'add-to-invisibility-spec) | |
173 | 'vc-annotate-annotation) | |
174 | (force-window-update (current-buffer))) | |
175 | ||
176 | (defun vc-annotate-display-default (ratio) | |
177 | "Display the output of \\[vc-annotate] using the default color range. | |
178 | The color range is given by `vc-annotate-color-map', scaled by RATIO. | |
179 | The current time is used as the offset." | |
180 | (interactive (progn (kill-local-variable 'vc-annotate-color-map) '(1.0))) | |
181 | (message "Redisplaying annotation...") | |
182 | (vc-annotate-display ratio) | |
183 | (message "Redisplaying annotation...done")) | |
184 | ||
185 | (defun vc-annotate-oldest-in-map (color-map) | |
186 | "Return the oldest time in the COLOR-MAP." | |
187 | ;; Since entries should be sorted, we can just use the last one. | |
188 | (caar (last color-map))) | |
189 | ||
190 | (defun vc-annotate-get-time-set-line-props () | |
191 | (let ((bol (point)) | |
192 | (date (vc-call-backend vc-annotate-backend 'annotate-time)) | |
193 | (inhibit-read-only t)) | |
194 | (assert (>= (point) bol)) | |
195 | (put-text-property bol (point) 'invisible 'vc-annotate-annotation) | |
196 | date)) | |
197 | ||
198 | (defun vc-annotate-display-autoscale (&optional full) | |
199 | "Highlight the output of \\[vc-annotate] using an autoscaled color map. | |
200 | Autoscaling means that the map is scaled from the current time to the | |
201 | oldest annotation in the buffer, or, with prefix argument FULL, to | |
202 | cover the range from the oldest annotation to the newest." | |
203 | (interactive "P") | |
204 | (let ((newest 0.0) | |
205 | (oldest 999999.) ;Any CVS users at the founding of Rome? | |
206 | (current (vc-annotate-convert-time (current-time))) | |
207 | date) | |
208 | (message "Redisplaying annotation...") | |
209 | ;; Run through this file and find the oldest and newest dates annotated. | |
210 | (save-excursion | |
211 | (goto-char (point-min)) | |
212 | (while (not (eobp)) | |
213 | (when (setq date (vc-annotate-get-time-set-line-props)) | |
214 | (when (> date newest) | |
215 | (setq newest date)) | |
216 | (when (< date oldest) | |
217 | (setq oldest date))) | |
218 | (forward-line 1))) | |
219 | (vc-annotate-display | |
220 | (/ (- (if full newest current) oldest) | |
221 | (vc-annotate-oldest-in-map vc-annotate-color-map)) | |
222 | (if full newest)) | |
223 | (message "Redisplaying annotation...done \(%s\)" | |
224 | (if full | |
225 | (format "Spanned from %.1f to %.1f days old" | |
226 | (- current oldest) | |
227 | (- current newest)) | |
228 | (format "Spanned to %.1f days old" (- current oldest)))))) | |
229 | ||
230 | ;; Menu -- Using easymenu.el | |
231 | (easy-menu-define vc-annotate-mode-menu vc-annotate-mode-map | |
232 | "VC Annotate Display Menu" | |
233 | `("VC-Annotate" | |
234 | ["By Color Map Range" (unless (null vc-annotate-display-mode) | |
235 | (setq vc-annotate-display-mode nil) | |
236 | (vc-annotate-display-select)) | |
237 | :style toggle :selected (null vc-annotate-display-mode)] | |
238 | ,@(let ((oldest-in-map (vc-annotate-oldest-in-map vc-annotate-color-map))) | |
239 | (mapcar (lambda (element) | |
240 | (let ((days (* element oldest-in-map))) | |
241 | `[,(format "Span %.1f days" days) | |
242 | (vc-annotate-display-select nil ,days) | |
243 | :style toggle :selected | |
244 | (eql vc-annotate-display-mode ,days) ])) | |
245 | vc-annotate-menu-elements)) | |
246 | ["Span ..." | |
247 | (vc-annotate-display-select | |
248 | nil (float (string-to-number (read-string "Span how many days? "))))] | |
249 | "--" | |
250 | ["Span to Oldest" | |
251 | (unless (eq vc-annotate-display-mode 'scale) | |
252 | (vc-annotate-display-select nil 'scale)) | |
253 | :help | |
254 | "Use an autoscaled color map from the oldest annotation to the current time" | |
255 | :style toggle :selected | |
256 | (eq vc-annotate-display-mode 'scale)] | |
257 | ["Span Oldest->Newest" | |
258 | (unless (eq vc-annotate-display-mode 'fullscale) | |
259 | (vc-annotate-display-select nil 'fullscale)) | |
260 | :help | |
261 | "Use an autoscaled color map from the oldest to the newest annotation" | |
262 | :style toggle :selected | |
263 | (eq vc-annotate-display-mode 'fullscale)] | |
264 | "--" | |
265 | ["Toggle annotation visibility" vc-annotate-toggle-annotation-visibility | |
266 | :help | |
267 | "Toggle whether the annotation is visible or not"] | |
268 | ["Annotate previous revision" vc-annotate-prev-revision | |
269 | :help "Visit the annotation of the revision previous to this one"] | |
270 | ["Annotate next revision" vc-annotate-next-revision | |
271 | :help "Visit the annotation of the revision after this one"] | |
272 | ["Annotate revision at line" vc-annotate-revision-at-line | |
273 | :help | |
274 | "Visit the annotation of the revision identified in the current line"] | |
275 | ["Annotate revision previous to line" vc-annotate-revision-previous-to-line | |
276 | :help "Visit the annotation of the revision before the revision at line"] | |
277 | ["Annotate latest revision" vc-annotate-working-revision | |
278 | :help "Visit the annotation of the working revision of this file"] | |
e21c597a | 279 | "--" |
f439c140 DN |
280 | ["Show log of revision at line" vc-annotate-show-log-revision-at-line |
281 | :help "Visit the log of the revision at line"] | |
282 | ["Show diff of revision at line" vc-annotate-show-diff-revision-at-line | |
283 | :help "Visit the diff of the revision at line from its previous revision"] | |
284 | ["Show changeset diff of revision at line" | |
285 | vc-annotate-show-changeset-diff-revision-at-line | |
286 | :enable | |
287 | (eq 'repository (vc-call-backend ,vc-annotate-backend 'revision-granularity)) | |
288 | :help "Visit the diff of the revision at line from its previous revision"] | |
289 | ["Visit revision at line" vc-annotate-find-revision-at-line | |
290 | :help "Visit the revision identified in the current line"])) | |
291 | ||
292 | (defun vc-annotate-display-select (&optional buffer mode) | |
293 | "Highlight the output of \\[vc-annotate]. | |
294 | By default, the current buffer is highlighted, unless overridden by | |
295 | BUFFER. `vc-annotate-display-mode' specifies the highlighting mode to | |
296 | use; you may override this using the second optional arg MODE." | |
297 | (interactive) | |
298 | (when mode (setq vc-annotate-display-mode mode)) | |
299 | (pop-to-buffer (or buffer (current-buffer))) | |
300 | (cond ((null vc-annotate-display-mode) | |
301 | ;; The ratio is global, thus relative to the global color-map. | |
302 | (kill-local-variable 'vc-annotate-color-map) | |
303 | (vc-annotate-display-default (or vc-annotate-ratio 1.0))) | |
304 | ;; One of the auto-scaling modes | |
305 | ((eq vc-annotate-display-mode 'scale) | |
306 | (vc-exec-after `(vc-annotate-display-autoscale))) | |
307 | ((eq vc-annotate-display-mode 'fullscale) | |
308 | (vc-exec-after `(vc-annotate-display-autoscale t))) | |
309 | ((numberp vc-annotate-display-mode) ; A fixed number of days lookback | |
310 | (vc-annotate-display-default | |
311 | (/ vc-annotate-display-mode | |
312 | (vc-annotate-oldest-in-map vc-annotate-color-map)))) | |
313 | (t (error "No such display mode: %s" | |
314 | vc-annotate-display-mode)))) | |
315 | ||
316 | ;;;###autoload | |
317 | (defun vc-annotate (file rev &optional display-mode buf move-point-to) | |
318 | "Display the edit history of the current file using colors. | |
319 | ||
320 | This command creates a buffer that shows, for each line of the current | |
321 | file, when it was last edited and by whom. Additionally, colors are | |
322 | used to show the age of each line--blue means oldest, red means | |
323 | youngest, and intermediate colors indicate intermediate ages. By | |
324 | default, the time scale stretches back one year into the past; | |
325 | everything that is older than that is shown in blue. | |
326 | ||
327 | With a prefix argument, this command asks two questions in the | |
328 | minibuffer. First, you may enter a revision number; then the buffer | |
329 | displays and annotates that revision instead of the working revision | |
330 | \(type RET in the minibuffer to leave that default unchanged). Then, | |
331 | you are prompted for the time span in days which the color range | |
332 | should cover. For example, a time span of 20 days means that changes | |
333 | over the past 20 days are shown in red to blue, according to their | |
334 | age, and everything that is older than that is shown in blue. | |
335 | ||
336 | If MOVE-POINT-TO is given, move the point to that line. | |
337 | ||
338 | Customization variables: | |
339 | ||
340 | `vc-annotate-menu-elements' customizes the menu elements of the | |
341 | mode-specific menu. `vc-annotate-color-map' and | |
342 | `vc-annotate-very-old-color' define the mapping of time to colors. | |
343 | `vc-annotate-background' specifies the background color." | |
344 | (interactive | |
345 | (save-current-buffer | |
346 | (vc-ensure-vc-buffer) | |
347 | (list buffer-file-name | |
348 | (let ((def (vc-working-revision buffer-file-name))) | |
349 | (if (null current-prefix-arg) def | |
350 | (read-string | |
351 | (format "Annotate from revision (default %s): " def) | |
352 | nil nil def))) | |
353 | (if (null current-prefix-arg) | |
354 | vc-annotate-display-mode | |
355 | (float (string-to-number | |
356 | (read-string "Annotate span days (default 20): " | |
357 | nil nil "20"))))))) | |
358 | (vc-ensure-vc-buffer) | |
359 | (setq vc-annotate-display-mode display-mode) ;Not sure why. --Stef | |
360 | (let* ((temp-buffer-name (format "*Annotate %s (rev %s)*" (buffer-name) rev)) | |
361 | (temp-buffer-show-function 'vc-annotate-display-select) | |
362 | ;; If BUF is specified, we presume the caller maintains current line, | |
363 | ;; so we don't need to do it here. This implementation may give | |
364 | ;; strange results occasionally in the case of REV != WORKFILE-REV. | |
365 | (current-line (or move-point-to (unless buf (line-number-at-pos))))) | |
366 | (message "Annotating...") | |
367 | ;; If BUF is specified it tells in which buffer we should put the | |
368 | ;; annotations. This is used when switching annotations to another | |
369 | ;; revision, so we should update the buffer's name. | |
370 | (when buf (with-current-buffer buf | |
371 | (rename-buffer temp-buffer-name t) | |
372 | ;; In case it had to be uniquified. | |
373 | (setq temp-buffer-name (buffer-name)))) | |
374 | (with-output-to-temp-buffer temp-buffer-name | |
375 | (let ((backend (vc-backend file))) | |
376 | (vc-call-backend backend 'annotate-command file | |
377 | (get-buffer temp-buffer-name) rev) | |
378 | ;; we must setup the mode first, and then set our local | |
379 | ;; variables before the show-function is called at the exit of | |
380 | ;; with-output-to-temp-buffer | |
381 | (with-current-buffer temp-buffer-name | |
382 | (unless (equal major-mode 'vc-annotate-mode) | |
383 | (vc-annotate-mode)) | |
384 | (set (make-local-variable 'vc-annotate-backend) backend) | |
385 | (set (make-local-variable 'vc-annotate-parent-file) file) | |
386 | (set (make-local-variable 'vc-annotate-parent-rev) rev) | |
387 | (set (make-local-variable 'vc-annotate-parent-display-mode) | |
388 | display-mode)))) | |
389 | ||
390 | (with-current-buffer temp-buffer-name | |
391 | (vc-exec-after | |
392 | `(progn | |
393 | ;; Ideally, we'd rather not move point if the user has already | |
394 | ;; moved it elsewhere, but really point here is not the position | |
395 | ;; of the user's cursor :-( | |
396 | (when ,current-line ;(and (bobp)) | |
397 | (goto-line ,current-line) | |
398 | (setq vc-sentinel-movepoint (point))) | |
399 | (unless (active-minibuffer-window) | |
400 | (message "Annotating... done"))))))) | |
401 | ||
402 | (defun vc-annotate-prev-revision (prefix) | |
403 | "Visit the annotation of the revision previous to this one. | |
404 | ||
405 | With a numeric prefix argument, annotate the revision that many | |
406 | revisions previous." | |
407 | (interactive "p") | |
408 | (vc-annotate-warp-revision (- 0 prefix))) | |
409 | ||
410 | (defun vc-annotate-next-revision (prefix) | |
411 | "Visit the annotation of the revision after this one. | |
412 | ||
413 | With a numeric prefix argument, annotate the revision that many | |
414 | revisions after." | |
415 | (interactive "p") | |
416 | (vc-annotate-warp-revision prefix)) | |
417 | ||
418 | (defun vc-annotate-working-revision () | |
419 | "Visit the annotation of the working revision of this file." | |
420 | (interactive) | |
421 | (if (not (equal major-mode 'vc-annotate-mode)) | |
422 | (message "Cannot be invoked outside of a vc annotate buffer") | |
423 | (let ((warp-rev (vc-working-revision vc-annotate-parent-file))) | |
424 | (if (equal warp-rev vc-annotate-parent-rev) | |
425 | (message "Already at revision %s" warp-rev) | |
426 | (vc-annotate-warp-revision warp-rev))))) | |
427 | ||
428 | (defun vc-annotate-extract-revision-at-line () | |
429 | "Extract the revision number of the current line." | |
430 | ;; This function must be invoked from a buffer in vc-annotate-mode | |
431 | (vc-call-backend vc-annotate-backend 'annotate-extract-revision-at-line)) | |
432 | ||
433 | (defun vc-annotate-revision-at-line () | |
434 | "Visit the annotation of the revision identified in the current line." | |
435 | (interactive) | |
436 | (if (not (equal major-mode 'vc-annotate-mode)) | |
437 | (message "Cannot be invoked outside of a vc annotate buffer") | |
438 | (let ((rev-at-line (vc-annotate-extract-revision-at-line))) | |
439 | (if (not rev-at-line) | |
440 | (message "Cannot extract revision number from the current line") | |
441 | (if (equal rev-at-line vc-annotate-parent-rev) | |
442 | (message "Already at revision %s" rev-at-line) | |
443 | (vc-annotate-warp-revision rev-at-line)))))) | |
444 | ||
445 | (defun vc-annotate-find-revision-at-line () | |
446 | "Visit the revision identified in the current line." | |
447 | (interactive) | |
448 | (if (not (equal major-mode 'vc-annotate-mode)) | |
449 | (message "Cannot be invoked outside of a vc annotate buffer") | |
450 | (let ((rev-at-line (vc-annotate-extract-revision-at-line))) | |
451 | (if (not rev-at-line) | |
452 | (message "Cannot extract revision number from the current line") | |
453 | (vc-revision-other-window rev-at-line))))) | |
454 | ||
455 | (defun vc-annotate-revision-previous-to-line () | |
456 | "Visit the annotation of the revision before the revision at line." | |
457 | (interactive) | |
458 | (if (not (equal major-mode 'vc-annotate-mode)) | |
459 | (message "Cannot be invoked outside of a vc annotate buffer") | |
460 | (let ((rev-at-line (vc-annotate-extract-revision-at-line)) | |
461 | (prev-rev nil)) | |
462 | (if (not rev-at-line) | |
463 | (message "Cannot extract revision number from the current line") | |
464 | (setq prev-rev | |
465 | (vc-call-backend vc-annotate-backend 'previous-revision | |
466 | vc-annotate-parent-file rev-at-line)) | |
467 | (vc-annotate-warp-revision prev-rev))))) | |
468 | ||
469 | (defun vc-annotate-show-log-revision-at-line () | |
470 | "Visit the log of the revision at line." | |
471 | (interactive) | |
472 | (if (not (equal major-mode 'vc-annotate-mode)) | |
473 | (message "Cannot be invoked outside of a vc annotate buffer") | |
474 | (let ((rev-at-line (vc-annotate-extract-revision-at-line))) | |
475 | (if (not rev-at-line) | |
476 | (message "Cannot extract revision number from the current line") | |
477 | (vc-print-log rev-at-line))))) | |
478 | ||
479 | (defun vc-annotate-show-diff-revision-at-line-internal (fileset) | |
480 | (if (not (equal major-mode 'vc-annotate-mode)) | |
481 | (message "Cannot be invoked outside of a vc annotate buffer") | |
482 | (let ((rev-at-line (vc-annotate-extract-revision-at-line)) | |
483 | (prev-rev nil)) | |
484 | (if (not rev-at-line) | |
485 | (message "Cannot extract revision number from the current line") | |
486 | (setq prev-rev | |
487 | (vc-call-backend vc-annotate-backend 'previous-revision | |
488 | vc-annotate-parent-file rev-at-line)) | |
489 | (if (not prev-rev) | |
490 | (message "Cannot diff from any revision prior to %s" rev-at-line) | |
491 | (save-window-excursion | |
492 | (vc-diff-internal | |
493 | nil | |
494 | ;; The value passed here should follow what | |
495 | ;; `vc-deduce-fileset' returns. | |
496 | (cons vc-annotate-backend (cons fileset nil)) | |
497 | prev-rev rev-at-line)) | |
498 | (switch-to-buffer "*vc-diff*")))))) | |
499 | ||
500 | (defun vc-annotate-show-diff-revision-at-line () | |
501 | "Visit the diff of the revision at line from its previous revision." | |
502 | (interactive) | |
503 | (vc-annotate-show-diff-revision-at-line-internal (list vc-annotate-parent-file))) | |
504 | ||
505 | (defun vc-annotate-show-changeset-diff-revision-at-line () | |
506 | "Visit the diff of the revision at line from its previous revision for all files in the changeset." | |
507 | (interactive) | |
508 | (when (eq 'file (vc-call-backend vc-annotate-backend 'revision-granularity)) | |
509 | (error "The %s backend does not support changeset diffs" vc-annotate-backend)) | |
510 | (vc-annotate-show-diff-revision-at-line-internal nil)) | |
511 | ||
512 | (defun vc-annotate-warp-revision (revspec) | |
513 | "Annotate the revision described by REVSPEC. | |
514 | ||
515 | If REVSPEC is a positive integer, warp that many revisions | |
516 | forward, if possible, otherwise echo a warning message. If | |
517 | REVSPEC is a negative integer, warp that many revisions backward, | |
518 | if possible, otherwise echo a warning message. If REVSPEC is a | |
519 | string, then it describes a revision number, so warp to that | |
520 | revision." | |
521 | (if (not (equal major-mode 'vc-annotate-mode)) | |
522 | (message "Cannot be invoked outside of a vc annotate buffer") | |
523 | (let* ((buf (current-buffer)) | |
524 | (oldline (line-number-at-pos)) | |
525 | (revspeccopy revspec) | |
526 | (newrev nil)) | |
527 | (cond | |
528 | ((and (integerp revspec) (> revspec 0)) | |
529 | (setq newrev vc-annotate-parent-rev) | |
530 | (while (and (> revspec 0) newrev) | |
531 | (setq newrev (vc-call-backend vc-annotate-backend 'next-revision | |
532 | vc-annotate-parent-file newrev)) | |
533 | (setq revspec (1- revspec))) | |
534 | (unless newrev | |
535 | (message "Cannot increment %d revisions from revision %s" | |
536 | revspeccopy vc-annotate-parent-rev))) | |
537 | ((and (integerp revspec) (< revspec 0)) | |
538 | (setq newrev vc-annotate-parent-rev) | |
539 | (while (and (< revspec 0) newrev) | |
540 | (setq newrev (vc-call-backend vc-annotate-backend 'previous-revision | |
541 | vc-annotate-parent-file newrev)) | |
542 | (setq revspec (1+ revspec))) | |
543 | (unless newrev | |
544 | (message "Cannot decrement %d revisions from revision %s" | |
545 | (- 0 revspeccopy) vc-annotate-parent-rev))) | |
546 | ((stringp revspec) (setq newrev revspec)) | |
547 | (t (error "Invalid argument to vc-annotate-warp-revision"))) | |
548 | (when newrev | |
549 | (vc-annotate vc-annotate-parent-file newrev | |
550 | vc-annotate-parent-display-mode | |
551 | buf | |
552 | ;; Pass the current line so that vc-annotate will | |
553 | ;; place the point in the line. | |
554 | (min oldline (progn (goto-char (point-max)) | |
555 | (forward-line -1) | |
556 | (line-number-at-pos)))))))) | |
557 | ||
558 | (defun vc-annotate-compcar (threshold a-list) | |
559 | "Test successive cons cells of A-LIST against THRESHOLD. | |
560 | Return the first cons cell with a car that is not less than THRESHOLD, | |
561 | nil if no such cell exists." | |
562 | (let ((i 1) | |
563 | (tmp-cons (car a-list))) | |
564 | (while (and tmp-cons (< (car tmp-cons) threshold)) | |
565 | (setq tmp-cons (car (nthcdr i a-list))) | |
566 | (setq i (+ i 1))) | |
567 | tmp-cons)) ; Return the appropriate value | |
568 | ||
569 | (defun vc-annotate-convert-time (time) | |
570 | "Convert a time value to a floating-point number of days. | |
571 | The argument TIME is a list as returned by `current-time' or | |
572 | `encode-time', only the first two elements of that list are considered." | |
573 | (/ (+ (* (float (car time)) (lsh 1 16)) (cadr time)) 24 3600)) | |
574 | ||
575 | (defun vc-annotate-difference (&optional offset) | |
576 | "Return the time span in days to the next annotation. | |
577 | This calls the backend function annotate-time, and returns the | |
578 | difference in days between the time returned and the current time, | |
579 | or OFFSET if present." | |
580 | (let ((next-time (vc-annotate-get-time-set-line-props))) | |
581 | (when next-time | |
582 | (- (or offset | |
583 | (vc-call-backend vc-annotate-backend 'annotate-current-time)) | |
584 | next-time)))) | |
585 | ||
586 | (defun vc-default-annotate-current-time (backend) | |
587 | "Return the current time, encoded as fractional days." | |
588 | (vc-annotate-convert-time (current-time))) | |
589 | ||
590 | (defvar vc-annotate-offset nil) | |
591 | ||
592 | (defun vc-annotate-display (ratio &optional offset) | |
593 | "Highlight `vc-annotate' output in the current buffer. | |
594 | RATIO, is the expansion that should be applied to `vc-annotate-color-map'. | |
595 | The annotations are relative to the current time, unless overridden by OFFSET." | |
596 | (when (/= ratio 1.0) | |
597 | (set (make-local-variable 'vc-annotate-color-map) | |
598 | (mapcar (lambda (elem) (cons (* (car elem) ratio) (cdr elem))) | |
599 | vc-annotate-color-map))) | |
600 | (set (make-local-variable 'vc-annotate-offset) offset) | |
601 | (font-lock-mode 1)) | |
602 | ||
603 | (defun vc-annotate-lines (limit) | |
604 | (while (< (point) limit) | |
605 | (let ((difference (vc-annotate-difference vc-annotate-offset)) | |
606 | (start (point)) | |
607 | (end (progn (forward-line 1) (point)))) | |
608 | (when difference | |
609 | (let* ((color (or (vc-annotate-compcar difference vc-annotate-color-map) | |
610 | (cons nil vc-annotate-very-old-color))) | |
611 | ;; substring from index 1 to remove any leading `#' in the name | |
612 | (face-name (concat "vc-annotate-face-" | |
613 | (if (string-equal | |
614 | (substring (cdr color) 0 1) "#") | |
615 | (substring (cdr color) 1) | |
616 | (cdr color)))) | |
617 | ;; Make the face if not done. | |
618 | (face (or (intern-soft face-name) | |
619 | (let ((tmp-face (make-face (intern face-name)))) | |
620 | (set-face-foreground tmp-face (cdr color)) | |
621 | (when vc-annotate-background | |
622 | (set-face-background tmp-face | |
623 | vc-annotate-background)) | |
624 | tmp-face)))) ; Return the face | |
625 | (put-text-property start end 'face face))))) | |
626 | ;; Pretend to font-lock there were no matches. | |
627 | nil) | |
628 | ||
629 | (provide 'vc-annotate) | |
630 | ||
81c5ac7e | 631 | ;; arch-tag: c3454a89-80e5-4ffd-8993-671b59612898 |
f439c140 | 632 | ;;; vc-annotate.el ends here |