1 ;;; cvs-status.el --- major mode for browsing `cvs status' output -*- coding: utf-8 -*-
3 ;; Copyright (C) 1999, 2000, 2002, 2003, 2004,
4 ;; 2005, 2006 Free Software Foundation, Inc.
6 ;; Author: Stefan Monnier <monnier@iro.umontreal.ca>
7 ;; Keywords: pcl-cvs cvs status tree tools
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs 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 ;; GNU Emacs 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.
30 ;; - Somehow allow cvs-status-tree to work on-the-fly
34 (eval-when-compile (require 'cl))
36 (eval-when-compile (require 'pcvs))
40 (defgroup cvs-status nil
41 "Major mode for browsing `cvs status' output."
43 :prefix "cvs-status-")
45 (easy-mmode-defmap cvs-status-mode-map
48 ("N" . cvs-status-next)
49 ("P" . cvs-status-prev)
50 ("\M-n" . cvs-status-next)
51 ("\M-p" . cvs-status-prev)
52 ("t" . cvs-status-cvstrees)
53 ("T" . cvs-status-trees)
54 (">" . cvs-mode-checkout))
57 :inherit 'cvs-mode-map)
59 ;;(easy-menu-define cvs-status-menu cvs-status-mode-map
60 ;; "Menu for `cvs-status-mode'."
62 ;; ["Show Tag Trees" cvs-status-tree t]
65 (defvar cvs-status-mode-hook nil
66 "Hook run at the end of `cvs-status-mode'.")
68 (defconst cvs-status-tags-leader-re "^ Existing Tags:$")
69 (defconst cvs-status-entry-leader-re
70 "^File:\\s-+\\(?:no file \\)?\\(.*\\S-\\)\\s-+Status: \\(.+\\)$")
71 (defconst cvs-status-dir-re "^cvs[.ex]* [a-z]+: Examining \\(.+\\)$")
72 (defconst cvs-status-rev-re "[0-9][.0-9]*\\.[.0-9]*[0-9]")
73 (defconst cvs-status-tag-re "[ \t]\\([a-zA-Z][^ \t\n.]*\\)")
75 (defconst cvs-status-font-lock-keywords
76 `((,cvs-status-entry-leader-re
79 (,cvs-status-tags-leader-re
81 (save-excursion (re-search-forward "^\n" nil 'move) (point))
82 (progn (re-search-backward cvs-status-tags-leader-re nil t)
84 (0 font-lock-comment-face))
86 (save-excursion (re-search-forward "^\n" nil 'move) (point))
87 (progn (re-search-backward cvs-status-tags-leader-re nil t)
89 (1 font-lock-function-name-face)))))
90 (defconst cvs-status-font-lock-defaults
91 '(cvs-status-font-lock-keywords t nil nil nil (font-lock-multiline . t)))
93 (defvar cvs-minor-wrap-function)
94 (put 'cvs-status-mode 'mode-class 'special)
96 (define-derived-mode cvs-status-mode fundamental-mode "CVS-Status"
97 "Mode used for cvs status output."
98 (set (make-local-variable 'font-lock-defaults) cvs-status-font-lock-defaults)
99 (set (make-local-variable 'cvs-minor-wrap-function) 'cvs-status-minor-wrap))
101 ;; Define cvs-status-next and cvs-status-prev
102 (easy-mmode-define-navigation cvs-status cvs-status-entry-leader-re "entry")
104 (defun cvs-status-current-file ()
107 (or (re-search-backward cvs-status-entry-leader-re nil t)
108 (re-search-forward cvs-status-entry-leader-re))
109 (let* ((file (match-string 1))
110 (cvsdir (and (re-search-backward cvs-status-dir-re nil t)
112 (pcldir (and (if (boundp 'cvs-pcl-cvs-dirchange-re)
113 (re-search-backward cvs-pcl-cvs-dirchange-re nil t))
116 (let ((default-directory ""))
117 (when pcldir (setq dir (expand-file-name pcldir dir)))
118 (when cvsdir (setq dir (expand-file-name cvsdir dir)))
119 (expand-file-name file dir)))))
121 (defun cvs-status-current-tag ()
124 (col (current-column))
125 (start (progn (re-search-backward cvs-status-tags-leader-re nil t) (point)))
126 (end (progn (re-search-forward "^$" nil t) (point))))
127 (when (and (< start pt) (> end pt))
130 (let ((tag nil) (dist pt) (end (point)))
132 (while (re-search-forward cvs-status-tag-re end t)
133 (let* ((cole (current-column))
134 (colb (save-excursion
135 (goto-char (match-beginning 1)) (current-column)))
136 (ndist (min (abs (- cole col)) (abs (- colb col)))))
139 (setq tag (match-string 1)))))
142 (defun cvs-status-minor-wrap (buf f)
143 (let ((data (with-current-buffer buf
145 (cons (cvs-status-current-file)
146 (cvs-status-current-tag))
150 (cons (cvs-status-current-file)
151 (cvs-status-current-tag))))))))
152 (let ((cvs-branch-prefix (cdar data))
153 (cvs-secondary-branch-prefix (and (cdar data) (cddr data)))
154 (cvs-minor-current-files
156 (when (and (cadr data) (not (equal (caar data) (cadr data))))
157 (list (cadr data)))))
158 ;; FIXME: I need to force because the fileinfos are UNKNOWN
159 (cvs-force-command "/F"))
163 ;; Tagelt, tag element
168 (:constructor cvs-tag-make
169 (vlist &optional name type))
170 (:conc-name cvs-tag->))
175 (defsubst cvs-status-vl-to-str (vl) (mapconcat 'number-to-string vl "."))
177 (defun cvs-tag->string (tag)
178 (if (stringp tag) tag
179 (let ((name (cvs-tag->name tag))
180 (vl (cvs-tag->vlist tag)))
181 (if (null name) (cvs-status-vl-to-str vl)
182 (let ((rev (if vl (concat " (" (cvs-status-vl-to-str vl) ")") "")))
183 (if (consp name) (mapcar (lambda (name) (concat name rev)) name)
184 (concat name rev)))))))
186 (defun cvs-tag-compare-1 (vl1 vl2)
188 ((and (null vl1) (null vl2)) 'equal)
191 (t (let ((v1 (car vl1))
196 (t (cvs-tag-compare-1 (cdr vl1) (cdr vl2))))))))
198 (defsubst cvs-tag-compare (tag1 tag2)
199 (cvs-tag-compare-1 (cvs-tag->vlist tag1) (cvs-tag->vlist tag2)))
201 (defun cvs-tag-merge (tag1 tag2)
202 "Merge TAG1 and TAG2 into one."
203 (let ((type1 (cvs-tag->type tag1))
204 (type2 (cvs-tag->type tag2))
205 (name1 (cvs-tag->name tag1))
206 (name2 (cvs-tag->name tag2)))
207 (unless (equal (cvs-tag->vlist tag1) (cvs-tag->vlist tag2))
208 (setf (cvs-tag->vlist tag1) nil))
210 (unless (or (not type2) (equal type1 type2))
211 (setf (cvs-tag->type tag1) nil))
212 (setf (cvs-tag->type tag1) type2))
214 (setf (cvs-tag->name tag1) (cvs-append name1 name2))
215 (setf (cvs-tag->name tag1) name2))
218 (defun cvs-tree-print (tags printer column)
219 "Print the tree of TAGS where each tag's string is given by PRINTER.
220 PRINTER should accept both a tag (in which case it should return a string)
221 or a string (in which case it should simply return its argument).
222 A tag cannot be a CONS. The return value can also be a list of strings,
223 if several nodes where merged into one.
224 The tree will be printed no closer than column COLUMN."
226 (let* ((eol (save-excursion (end-of-line) (current-column)))
227 (column (max (+ eol 2) column)))
228 (if (null tags) column
229 ;;(move-to-column-force column)
230 (let* ((rev (cvs-car tags))
231 (name (funcall printer (cvs-car rev)))
232 (rest (append (cvs-cdr name) (cvs-cdr tags)))
235 (or (= (forward-line 1) 0) (insert "\n"))
236 (cvs-tree-print rest printer column))))
237 (assert (>= prefix column))
238 (move-to-column prefix t)
240 (insert (cvs-car name))
241 (dolist (br (cvs-cdr rev))
242 (let* ((column (current-column))
243 (brrev (funcall printer (cvs-car br)))
244 (brlength (length (cvs-car brrev)))
245 (brfill (concat (make-string (/ brlength 2) ? ) "|"))
249 (cvs-tree-print (cvs-append brrev brfill (cvs-cdr br))
250 printer (current-column)))))
251 (delete-region (save-excursion (move-to-column prefix) (point))
253 (insert " " (make-string (- prefix column 2) ?-) " ")
257 (defun cvs-tree-merge (tree1 tree2)
258 "Merge tags trees TREE1 and TREE2 into one.
259 BEWARE: because of stability issues, this is not a symetric operation."
260 (assert (and (listp tree1) (listp tree2)))
265 (let* ((rev1 (car tree1))
266 (tag1 (cvs-car rev1))
267 (vl1 (cvs-tag->vlist tag1))
270 (tag2 (cvs-car rev2))
271 (vl2 (cvs-tag->vlist tag2))
275 (case (cvs-tag-compare tag1 tag2)
276 (more1 (list* rev2 (cvs-tree-merge tree1 (cdr tree2))))
277 (more2 (list* rev1 (cvs-tree-merge (cdr tree1) tree2)))
279 (cons (cons (cvs-tag-merge tag1 tag2)
280 (cvs-tree-merge (cvs-cdr rev1) (cvs-cdr rev2)))
281 (cvs-tree-merge (cdr tree1) (cdr tree2))))))
284 (list (cons (cvs-tag-make (butlast vl1)) tree1)) tree2))
287 tree1 (list (cons (cvs-tag-make (butlast vl2)) tree2)))))))))
289 (defun cvs-tag-make-tag (tag)
290 (let ((vl (mapcar 'string-to-number (split-string (nth 2 tag) "\\."))))
291 (cvs-tag-make vl (nth 0 tag) (intern (nth 1 tag)))))
293 (defun cvs-tags->tree (tags)
294 "Make a tree out of a list of TAGS."
298 (let ((tag (cvs-tag-make-tag tag)))
299 (list (if (not (eq (cvs-tag->type tag) 'branch)) tag
300 (list (cvs-tag-make (butlast (cvs-tag->vlist tag)))
306 (push (cvs-tree-merge (pop tags) (pop tags)) tl))
307 (setq tags (nreverse tl))))
310 (defun cvs-status-get-tags ()
311 "Look for a list of tags, read them in and delete them.
312 Return nil if there was an empty list of tags and t if there wasn't
313 even a list. Else, return the list of tags where each element of
314 the list is a three-string list TAG, KIND, REV."
316 (if (not (re-search-forward cvs-status-tags-leader-re nil t)) t
320 (case-fold-search t))
322 (looking-at "\\s-+no\\s-+tags")
324 (progn ; normal listing
325 (while (looking-at "^[ \t]+\\([^ \t\n]+\\)[ \t]+(\\([a-z]+\\): \\(.+\\))$")
326 (push (list (match-string 1) (match-string 2) (match-string 3)) tags)
328 (unless (looking-at "^$") (setq tags nil) (goto-char pt))
331 (progn ; cvstree-style listing
332 (while (or (looking-at "^ .+\\(.\\) \\([0-9.]+\\): \\([^\n\t .0-9][^\n\t ]*\\)?$")
334 (looking-at "^ .+\\(\\) \\(8\\)? \\([^\n\t .0-9][^\n\t ]*\\)$")))
335 (setq lastrev (or (match-string 2) lastrev))
336 (push (list (match-string 3)
337 (if (equal (match-string 1) " ") "branch" "revision")
340 (unless (looking-at "^$") (setq tags nil) (goto-char pt))
341 (setq tags (nreverse tags)))
343 (progn ; new tree style listing
344 (let* ((re-lead "[ \t]*\\(-+\\)?\\(|\n?[ \t]+\\)*")
345 (re3 (concat re-lead "\\(\\.\\)?\\(" cvs-status-rev-re "\\)"))
346 (re2 (concat re-lead cvs-status-tag-re "\\(\\)"))
347 (re1 (concat re-lead cvs-status-tag-re
348 " (\\(" cvs-status-rev-re "\\))")))
349 (while (or (looking-at re1) (looking-at re2) (looking-at re3))
350 (push (list (match-string 3)
351 (if (match-string 1) "branch" "revision")
352 (match-string 4)) tags)
353 (goto-char (match-end 0))
354 (when (eolp) (forward-char 1))))
355 (unless (looking-at "^$") (setq tags nil) (goto-char pt))
356 (setq tags (nreverse tags))))
358 (delete-region pt (point)))
361 (defvar font-lock-mode)
362 (defun cvs-refontify (beg end)
363 (when (and (boundp 'font-lock-mode)
365 (fboundp 'font-lock-fontify-region))
366 (font-lock-fontify-region (1- beg) (1+ end))))
368 (defun cvs-status-trees ()
369 "Look for a lists of tags, and replace them with trees."
372 (goto-char (point-min))
373 (let ((inhibit-read-only t)
375 (while (listp (setq tags (cvs-status-get-tags)))
376 ;;(let ((pt (save-excursion (forward-line -1) (point))))
378 (narrow-to-region (point) (point))
380 (combine-after-change-calls
381 (cvs-tree-print (cvs-tags->tree tags) 'cvs-tag->string 3)))
382 ;;(cvs-refontify pt (point))
388 ;;;; CVSTree-style trees
391 (defvar cvs-tree-use-jisx0208 nil) ;Old compat var.
392 (defvar cvs-tree-use-charset
394 (cvs-tree-use-jisx0208 'jisx0208)
395 ((char-displayable-p ?━) 'unicode)
396 ((char-displayable-p (make-char 'japanese-jisx0208 40 44)) 'jisx0208))
397 "*Non-nil if we should use the graphical glyphs from `japanese-jisx0208'.
398 Otherwise, default to ASCII chars like +, - and |.")
400 (defconst cvs-tree-char-space
401 (case cvs-tree-use-charset
402 (jisx0208 (make-char 'japanese-jisx0208 33 33))
405 (defconst cvs-tree-char-hbar
406 (case cvs-tree-use-charset
407 (jisx0208 (make-char 'japanese-jisx0208 40 44))
410 (defconst cvs-tree-char-vbar
411 (case cvs-tree-use-charset
412 (jisx0208 (make-char 'japanese-jisx0208 40 45))
415 (defconst cvs-tree-char-branch
416 (case cvs-tree-use-charset
417 (jisx0208 (make-char 'japanese-jisx0208 40 50))
420 (defconst cvs-tree-char-eob ;end of branch
421 (case cvs-tree-use-charset
422 (jisx0208 (make-char 'japanese-jisx0208 40 49))
425 (defconst cvs-tree-char-bob ;beginning of branch
426 (case cvs-tree-use-charset
427 (jisx0208 (make-char 'japanese-jisx0208 40 51))
431 (defun cvs-tag-lessp (tag1 tag2)
432 (eq (cvs-tag-compare tag1 tag2) 'more2))
434 (defvar cvs-tree-nomerge nil)
436 (defun cvs-status-cvstrees (&optional arg)
437 "Look for a list of tags, and replace it with a tree.
438 Optional prefix ARG chooses between two representations."
440 (when (and cvs-tree-use-charset
441 (not enable-multibyte-characters))
442 ;; We need to convert the buffer from unibyte to multibyte
443 ;; since we'll use multibyte chars for the tree.
444 (let ((modified (buffer-modified-p))
445 (inhibit-read-only t)
446 (inhibit-modification-hooks t))
449 (decode-coding-region (point-min) (point-max) 'undecided)
450 (set-buffer-multibyte t))
451 (restore-buffer-modified-p modified))))
453 (goto-char (point-min))
454 (let ((inhibit-read-only t)
456 (cvs-tree-nomerge (if arg (not cvs-tree-nomerge) cvs-tree-nomerge)))
457 (while (listp (setq tags (cvs-status-get-tags)))
458 (let ((tags (mapcar 'cvs-tag-make-tag tags))
459 ;;(pt (save-excursion (forward-line -1) (point)))
461 (setq tags (sort tags 'cvs-tag-lessp))
462 (let* ((first (car tags))
463 (prev (if (cvs-tag-p first)
464 (list (car (cvs-tag->vlist first))) nil)))
465 (combine-after-change-calls
466 (cvs-tree-tags-insert tags prev))
467 ;;(cvs-refontify pt (point))
471 (defun cvs-tree-tags-insert (tags prev)
473 (let* ((tag (car tags))
474 (vlist (cvs-tag->vlist tag))
476 (let* ((next (cvs-car (cadr tags)))
477 (nprev (if (and cvs-tree-nomerge next
478 (equal vlist (cvs-tag->vlist next)))
480 (cvs-map (lambda (v p) v) nprev prev)))
481 (after (save-excursion
483 (cvs-tree-tags-insert (cdr tags) nprev)))
485 (nas nil)) ;"next afters" to be returned
487 (do* ((vs vlist (cdr vs))
490 ((and (null as) (null vs) (null ps))
491 (let ((revname (cvs-status-vl-to-str vlist)))
492 (if (cvs-every 'identity (cvs-map 'equal prev vlist))
493 (insert (make-string (+ 4 (length revname)) ? )
494 (or (cvs-tag->name tag) ""))
495 (insert " " revname ": " (or (cvs-tag->name tag) "")))))
496 (let* ((eq (and pe (equal (car ps) (car vs))))
497 (next-eq (equal (cadr ps) (cadr vs))))
501 (if next-eq (cons t cvs-tree-char-vbar)
502 (cons t cvs-tree-char-branch))
503 (cons nil cvs-tree-char-bob))
505 (if next-eq (cons nil cvs-tree-char-space)
506 (cons t cvs-tree-char-eob))
507 (cons nil (if (and (eq (cvs-tag->type tag) 'branch)
508 (cvs-every 'null as))
510 cvs-tree-char-hbar))))))
511 (insert (cdr na+char))
512 (push (car na+char) nas))
517 ;;;; Merged trees from different files
520 (defun cvs-tree-fuzzy-merge-1 (trees tree prev)
523 (defun cvs-tree-fuzzy-merge (trees tree)
524 "Do the impossible: merge TREE into TREES."
528 "Get tags from the status output and merge tham all into a big tree."
530 (goto-char (point-min))
531 (let ((inhibit-read-only t)
532 (trees (make-vector 31 0)) tree)
533 (while (listp (setq tree (cvs-tags->tree (cvs-status-get-tags))))
534 (cvs-tree-fuzzy-merge trees tree))
536 (let ((cvs-tag-print-rev nil))
537 (cvs-tree-print tree 'cvs-tag->string 3)))))
540 (provide 'cvs-status)
542 ;; arch-tag: db8b5094-d02a-473e-a476-544e89ff5ad0
543 ;;; cvs-status.el ends here