1 ;;; cvs-status.el --- major mode for browsing `cvs status' output -*- coding: utf-8 -*-
3 ;; Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004,
4 ;; 2005, 2006, 2007, 2008, 2009 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 3 of the License, or
14 ;; (at your option) any later version.
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. If not, see <http://www.gnu.org/licenses/>.
28 ;; - Somehow allow cvs-status-tree to work on-the-fly
32 (eval-when-compile (require 'cl
))
37 (defgroup cvs-status nil
38 "Major mode for browsing `cvs status' output."
40 :prefix
"cvs-status-")
42 (easy-mmode-defmap cvs-status-mode-map
45 ("N" . cvs-status-next
)
46 ("P" . cvs-status-prev
)
47 ("\M-n" . cvs-status-next
)
48 ("\M-p" . cvs-status-prev
)
49 ("t" . cvs-status-cvstrees
)
50 ("T" . cvs-status-trees
)
51 (">" . cvs-mode-checkout
))
54 :inherit
'cvs-mode-map
)
56 ;;(easy-menu-define cvs-status-menu cvs-status-mode-map
57 ;; "Menu for `cvs-status-mode'."
59 ;; ["Show Tag Trees" cvs-status-tree t]
62 (defvar cvs-status-mode-hook nil
63 "Hook run at the end of `cvs-status-mode'.")
65 (defconst cvs-status-tags-leader-re
"^ Existing Tags:$")
66 (defconst cvs-status-entry-leader-re
67 "^File:\\s-+\\(?:no file \\)?\\(.*\\S-\\)\\s-+Status: \\(.+\\)$")
68 (defconst cvs-status-dir-re
"^cvs[.ex]* [a-z]+: Examining \\(.+\\)$")
69 (defconst cvs-status-rev-re
"[0-9][.0-9]*\\.[.0-9]*[0-9]")
70 (defconst cvs-status-tag-re
"[ \t]\\([a-zA-Z][^ \t\n.]*\\)")
72 (defconst cvs-status-font-lock-keywords
73 `((,cvs-status-entry-leader-re
76 (,cvs-status-tags-leader-re
78 (save-excursion (re-search-forward "^\n" nil
'move
) (point))
79 (progn (re-search-backward cvs-status-tags-leader-re nil t
)
81 (0 font-lock-comment-face
))
83 (save-excursion (re-search-forward "^\n" nil
'move
) (point))
84 (progn (re-search-backward cvs-status-tags-leader-re nil t
)
86 (1 font-lock-function-name-face
)))))
87 (defconst cvs-status-font-lock-defaults
88 '(cvs-status-font-lock-keywords t nil nil nil
(font-lock-multiline . t
)))
90 (defvar cvs-minor-wrap-function
)
91 (put 'cvs-status-mode
'mode-class
'special
)
93 (define-derived-mode cvs-status-mode fundamental-mode
"CVS-Status"
94 "Mode used for cvs status output."
95 (set (make-local-variable 'font-lock-defaults
) cvs-status-font-lock-defaults
)
96 (set (make-local-variable 'cvs-minor-wrap-function
) 'cvs-status-minor-wrap
))
98 ;; Define cvs-status-next and cvs-status-prev
99 (easy-mmode-define-navigation cvs-status cvs-status-entry-leader-re
"entry")
101 (defun cvs-status-current-file ()
104 (or (re-search-backward cvs-status-entry-leader-re nil t
)
105 (re-search-forward cvs-status-entry-leader-re
))
106 (let* ((file (match-string 1))
107 (cvsdir (and (re-search-backward cvs-status-dir-re nil t
)
109 (pcldir (and (if (boundp 'cvs-pcl-cvs-dirchange-re
)
110 (re-search-backward cvs-pcl-cvs-dirchange-re nil t
))
113 (let ((default-directory ""))
114 (when pcldir
(setq dir
(expand-file-name pcldir dir
)))
115 (when cvsdir
(setq dir
(expand-file-name cvsdir dir
)))
116 (expand-file-name file dir
)))))
118 (defun cvs-status-current-tag ()
121 (col (current-column))
122 (start (progn (re-search-backward cvs-status-tags-leader-re nil t
) (point)))
123 (end (progn (re-search-forward "^$" nil t
) (point))))
124 (when (and (< start pt
) (> end pt
))
127 (let ((tag nil
) (dist pt
) (end (point)))
129 (while (re-search-forward cvs-status-tag-re end t
)
130 (let* ((cole (current-column))
131 (colb (save-excursion
132 (goto-char (match-beginning 1)) (current-column)))
133 (ndist (min (abs (- cole col
)) (abs (- colb col
)))))
136 (setq tag
(match-string 1)))))
139 (defun cvs-status-minor-wrap (buf f
)
140 (let ((data (with-current-buffer buf
142 (cons (cvs-status-current-file)
143 (cvs-status-current-tag))
147 (cons (cvs-status-current-file)
148 (cvs-status-current-tag))))))))
149 (let ((cvs-branch-prefix (cdar data
))
150 (cvs-secondary-branch-prefix (and (cdar data
) (cddr data
)))
151 (cvs-minor-current-files
153 (when (and (cadr data
) (not (equal (caar data
) (cadr data
))))
154 (list (cadr data
)))))
155 ;; FIXME: I need to force because the fileinfos are UNKNOWN
156 (cvs-force-command "/F"))
160 ;; Tagelt, tag element
165 (:constructor cvs-tag-make
166 (vlist &optional name type
))
167 (:conc-name cvs-tag-
>))
172 (defsubst cvs-status-vl-to-str
(vl) (mapconcat 'number-to-string vl
"."))
174 (defun cvs-tag->string
(tag)
175 (if (stringp tag
) tag
176 (let ((name (cvs-tag->name tag
))
177 (vl (cvs-tag->vlist tag
)))
178 (if (null name
) (cvs-status-vl-to-str vl
)
179 (let ((rev (if vl
(concat " (" (cvs-status-vl-to-str vl
) ")") "")))
180 (if (consp name
) (mapcar (lambda (name) (concat name rev
)) name
)
181 (concat name rev
)))))))
183 (defun cvs-tag-compare-1 (vl1 vl2
)
185 ((and (null vl1
) (null vl2
)) 'equal
)
188 (t (let ((v1 (car vl1
))
193 (t (cvs-tag-compare-1 (cdr vl1
) (cdr vl2
))))))))
195 (defsubst cvs-tag-compare
(tag1 tag2
)
196 (cvs-tag-compare-1 (cvs-tag->vlist tag1
) (cvs-tag->vlist tag2
)))
198 (defun cvs-tag-merge (tag1 tag2
)
199 "Merge TAG1 and TAG2 into one."
200 (let ((type1 (cvs-tag->type tag1
))
201 (type2 (cvs-tag->type tag2
))
202 (name1 (cvs-tag->name tag1
))
203 (name2 (cvs-tag->name tag2
)))
204 (unless (equal (cvs-tag->vlist tag1
) (cvs-tag->vlist tag2
))
205 (setf (cvs-tag->vlist tag1
) nil
))
207 (unless (or (not type2
) (equal type1 type2
))
208 (setf (cvs-tag->type tag1
) nil
))
209 (setf (cvs-tag->type tag1
) type2
))
211 (setf (cvs-tag->name tag1
) (cvs-append name1 name2
))
212 (setf (cvs-tag->name tag1
) name2
))
215 (defun cvs-tree-print (tags printer column
)
216 "Print the tree of TAGS where each tag's string is given by PRINTER.
217 PRINTER should accept both a tag (in which case it should return a string)
218 or a string (in which case it should simply return its argument).
219 A tag cannot be a CONS. The return value can also be a list of strings,
220 if several nodes where merged into one.
221 The tree will be printed no closer than column COLUMN."
223 (let* ((eol (save-excursion (end-of-line) (current-column)))
224 (column (max (+ eol
2) column
)))
225 (if (null tags
) column
226 ;;(move-to-column-force column)
227 (let* ((rev (cvs-car tags
))
228 (name (funcall printer
(cvs-car rev
)))
229 (rest (append (cvs-cdr name
) (cvs-cdr tags
)))
232 (or (= (forward-line 1) 0) (insert "\n"))
233 (cvs-tree-print rest printer column
))))
234 (assert (>= prefix column
))
235 (move-to-column prefix t
)
237 (insert (cvs-car name
))
238 (dolist (br (cvs-cdr rev
))
239 (let* ((column (current-column))
240 (brrev (funcall printer
(cvs-car br
)))
241 (brlength (length (cvs-car brrev
)))
242 (brfill (concat (make-string (/ brlength
2) ?
) "|"))
246 (cvs-tree-print (cvs-append brrev brfill
(cvs-cdr br
))
247 printer
(current-column)))))
248 (delete-region (save-excursion (move-to-column prefix
) (point))
250 (insert " " (make-string (- prefix column
2) ?-
) " ")
254 (defun cvs-tree-merge (tree1 tree2
)
255 "Merge tags trees TREE1 and TREE2 into one.
256 BEWARE: because of stability issues, this is not a symetric operation."
257 (assert (and (listp tree1
) (listp tree2
)))
262 (let* ((rev1 (car tree1
))
263 (tag1 (cvs-car rev1
))
264 (vl1 (cvs-tag->vlist tag1
))
267 (tag2 (cvs-car rev2
))
268 (vl2 (cvs-tag->vlist tag2
))
272 (case (cvs-tag-compare tag1 tag2
)
273 (more1 (list* rev2
(cvs-tree-merge tree1
(cdr tree2
))))
274 (more2 (list* rev1
(cvs-tree-merge (cdr tree1
) tree2
)))
276 (cons (cons (cvs-tag-merge tag1 tag2
)
277 (cvs-tree-merge (cvs-cdr rev1
) (cvs-cdr rev2
)))
278 (cvs-tree-merge (cdr tree1
) (cdr tree2
))))))
281 (list (cons (cvs-tag-make (butlast vl1
)) tree1
)) tree2
))
284 tree1
(list (cons (cvs-tag-make (butlast vl2
)) tree2
)))))))))
286 (defun cvs-tag-make-tag (tag)
287 (let ((vl (mapcar 'string-to-number
(split-string (nth 2 tag
) "\\."))))
288 (cvs-tag-make vl
(nth 0 tag
) (intern (nth 1 tag
)))))
290 (defun cvs-tags->tree
(tags)
291 "Make a tree out of a list of TAGS."
295 (let ((tag (cvs-tag-make-tag tag
)))
296 (list (if (not (eq (cvs-tag->type tag
) 'branch
)) tag
297 (list (cvs-tag-make (butlast (cvs-tag->vlist tag
)))
303 (push (cvs-tree-merge (pop tags
) (pop tags
)) tl
))
304 (setq tags
(nreverse tl
))))
307 (defun cvs-status-get-tags ()
308 "Look for a list of tags, read them in and delete them.
309 Return nil if there was an empty list of tags and t if there wasn't
310 even a list. Else, return the list of tags where each element of
311 the list is a three-string list TAG, KIND, REV."
313 (if (not (re-search-forward cvs-status-tags-leader-re nil t
)) t
317 (case-fold-search t
))
319 (looking-at "\\s-+no\\s-+tags")
321 (progn ; normal listing
322 (while (looking-at "^[ \t]+\\([^ \t\n]+\\)[ \t]+(\\([a-z]+\\): \\(.+\\))$")
323 (push (list (match-string 1) (match-string 2) (match-string 3)) tags
)
325 (unless (looking-at "^$") (setq tags nil
) (goto-char pt
))
328 (progn ; cvstree-style listing
329 (while (or (looking-at "^ .+\\(.\\) \\([0-9.]+\\): \\([^\n\t .0-9][^\n\t ]*\\)?$")
331 (looking-at "^ .+\\(\\) \\(8\\)? \\([^\n\t .0-9][^\n\t ]*\\)$")))
332 (setq lastrev
(or (match-string 2) lastrev
))
333 (push (list (match-string 3)
334 (if (equal (match-string 1) " ") "branch" "revision")
337 (unless (looking-at "^$") (setq tags nil
) (goto-char pt
))
338 (setq tags
(nreverse tags
)))
340 (progn ; new tree style listing
341 (let* ((re-lead "[ \t]*\\(-+\\)?\\(|\n?[ \t]+\\)*")
342 (re3 (concat re-lead
"\\(\\.\\)?\\(" cvs-status-rev-re
"\\)"))
343 (re2 (concat re-lead cvs-status-tag-re
"\\(\\)"))
344 (re1 (concat re-lead cvs-status-tag-re
345 " (\\(" cvs-status-rev-re
"\\))")))
346 (while (or (looking-at re1
) (looking-at re2
) (looking-at re3
))
347 (push (list (match-string 3)
348 (if (match-string 1) "branch" "revision")
349 (match-string 4)) tags
)
350 (goto-char (match-end 0))
351 (when (eolp) (forward-char 1))))
352 (unless (looking-at "^$") (setq tags nil
) (goto-char pt
))
353 (setq tags
(nreverse tags
))))
355 (delete-region pt
(point)))
358 (defvar font-lock-mode
)
359 (defun cvs-refontify (beg end
)
360 (when (and (boundp 'font-lock-mode
)
362 (fboundp 'font-lock-fontify-region
))
363 (font-lock-fontify-region (1- beg
) (1+ end
))))
365 (defun cvs-status-trees ()
366 "Look for a lists of tags, and replace them with trees."
369 (goto-char (point-min))
370 (let ((inhibit-read-only t
)
372 (while (listp (setq tags
(cvs-status-get-tags)))
373 ;;(let ((pt (save-excursion (forward-line -1) (point))))
375 (narrow-to-region (point) (point))
377 (combine-after-change-calls
378 (cvs-tree-print (cvs-tags->tree tags
) 'cvs-tag-
>string
3)))
379 ;;(cvs-refontify pt (point))
385 ;;;; CVSTree-style trees
388 (defvar cvs-tree-use-jisx0208 nil
) ;Old compat var.
389 (defvar cvs-tree-use-charset
391 (cvs-tree-use-jisx0208 'jisx0208
)
392 ((char-displayable-p ?━
) 'unicode
)
393 ((char-displayable-p (make-char 'japanese-jisx0208
40 44)) 'jisx0208
))
394 "*Non-nil if we should use the graphical glyphs from `japanese-jisx0208'.
395 Otherwise, default to ASCII chars like +, - and |.")
397 (defconst cvs-tree-char-space
398 (case cvs-tree-use-charset
399 (jisx0208 (make-char 'japanese-jisx0208
33 33))
402 (defconst cvs-tree-char-hbar
403 (case cvs-tree-use-charset
404 (jisx0208 (make-char 'japanese-jisx0208
40 44))
407 (defconst cvs-tree-char-vbar
408 (case cvs-tree-use-charset
409 (jisx0208 (make-char 'japanese-jisx0208
40 45))
412 (defconst cvs-tree-char-branch
413 (case cvs-tree-use-charset
414 (jisx0208 (make-char 'japanese-jisx0208
40 50))
417 (defconst cvs-tree-char-eob
;end of branch
418 (case cvs-tree-use-charset
419 (jisx0208 (make-char 'japanese-jisx0208
40 49))
422 (defconst cvs-tree-char-bob
;beginning of branch
423 (case cvs-tree-use-charset
424 (jisx0208 (make-char 'japanese-jisx0208
40 51))
428 (defun cvs-tag-lessp (tag1 tag2
)
429 (eq (cvs-tag-compare tag1 tag2
) 'more2
))
431 (defvar cvs-tree-nomerge nil
)
433 (defun cvs-status-cvstrees (&optional arg
)
434 "Look for a list of tags, and replace it with a tree.
435 Optional prefix ARG chooses between two representations."
437 (when (and cvs-tree-use-charset
438 (not enable-multibyte-characters
))
439 ;; We need to convert the buffer from unibyte to multibyte
440 ;; since we'll use multibyte chars for the tree.
441 (let ((modified (buffer-modified-p))
442 (inhibit-read-only t
)
443 (inhibit-modification-hooks t
))
446 (decode-coding-region (point-min) (point-max) 'undecided
)
447 (set-buffer-multibyte t
))
448 (restore-buffer-modified-p modified
))))
450 (goto-char (point-min))
451 (let ((inhibit-read-only t
)
453 (cvs-tree-nomerge (if arg
(not cvs-tree-nomerge
) cvs-tree-nomerge
)))
454 (while (listp (setq tags
(cvs-status-get-tags)))
455 (let ((tags (mapcar 'cvs-tag-make-tag tags
))
456 ;;(pt (save-excursion (forward-line -1) (point)))
458 (setq tags
(sort tags
'cvs-tag-lessp
))
459 (let* ((first (car tags
))
460 (prev (if (cvs-tag-p first
)
461 (list (car (cvs-tag->vlist first
))) nil
)))
462 (combine-after-change-calls
463 (cvs-tree-tags-insert tags prev
))
464 ;;(cvs-refontify pt (point))
468 (defun cvs-tree-tags-insert (tags prev
)
470 (let* ((tag (car tags
))
471 (vlist (cvs-tag->vlist tag
))
473 (let* ((next (cvs-car (cadr tags
)))
474 (nprev (if (and cvs-tree-nomerge next
475 (equal vlist
(cvs-tag->vlist next
)))
477 (cvs-map (lambda (v p
) v
) nprev prev
)))
478 (after (save-excursion
480 (cvs-tree-tags-insert (cdr tags
) nprev
)))
482 (nas nil
)) ;"next afters" to be returned
484 (do* ((vs vlist
(cdr vs
))
487 ((and (null as
) (null vs
) (null ps
))
488 (let ((revname (cvs-status-vl-to-str vlist
)))
489 (if (cvs-every 'identity
(cvs-map 'equal prev vlist
))
490 (insert (make-string (+ 4 (length revname
)) ?
)
491 (or (cvs-tag->name tag
) ""))
492 (insert " " revname
": " (or (cvs-tag->name tag
) "")))))
493 (let* ((eq (and pe
(equal (car ps
) (car vs
))))
494 (next-eq (equal (cadr ps
) (cadr vs
))))
498 (if next-eq
(cons t cvs-tree-char-vbar
)
499 (cons t cvs-tree-char-branch
))
500 (cons nil cvs-tree-char-bob
))
502 (if next-eq
(cons nil cvs-tree-char-space
)
503 (cons t cvs-tree-char-eob
))
504 (cons nil
(if (and (eq (cvs-tag->type tag
) 'branch
)
505 (cvs-every 'null as
))
507 cvs-tree-char-hbar
))))))
508 (insert (cdr na
+char
))
509 (push (car na
+char
) nas
))
514 ;;;; Merged trees from different files
517 (defun cvs-tree-fuzzy-merge-1 (trees tree prev
)
520 (defun cvs-tree-fuzzy-merge (trees tree
)
521 "Do the impossible: merge TREE into TREES."
525 "Get tags from the status output and merge tham all into a big tree."
527 (goto-char (point-min))
528 (let ((inhibit-read-only t
)
529 (trees (make-vector 31 0)) tree
)
530 (while (listp (setq tree
(cvs-tags->tree
(cvs-status-get-tags))))
531 (cvs-tree-fuzzy-merge trees tree
))
533 (let ((cvs-tag-print-rev nil
))
534 (cvs-tree-print tree
'cvs-tag-
>string
3)))))
537 (provide 'cvs-status
)
539 ;; arch-tag: db8b5094-d02a-473e-a476-544e89ff5ad0
540 ;;; cvs-status.el ends here