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@cs.yale.edu>
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