1 ;;; cvs-status.el --- major mode for browsing `cvs status' output -*- coding: utf-8 -*-
3 ;; Copyright (C) 1999, 2000, 2003, 2004 Free Software Foundation, Inc.
5 ;; Author: Stefan Monnier <monnier@cs.yale.edu>
6 ;; Keywords: pcl-cvs cvs status tree tools
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)
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.
29 ;; - Somehow allow cvs-status-tree to work on-the-fly
33 (eval-when-compile (require 'cl
))
35 (eval-when-compile (require 'pcvs
))
39 (defgroup cvs-status nil
40 "Major mode for browsing `cvs status' output."
42 :prefix
"cvs-status-")
44 (easy-mmode-defmap cvs-status-mode-map
47 ("N" . cvs-status-next
)
48 ("P" . cvs-status-prev
)
49 ("\M-n" . cvs-status-next
)
50 ("\M-p" . cvs-status-prev
)
51 ("t" . cvs-status-cvstrees
)
52 ("T" . cvs-status-trees
)
53 (">" . cvs-mode-checkout
))
56 :inherit
'cvs-mode-map
)
58 ;;(easy-menu-define cvs-status-menu cvs-status-mode-map
59 ;; "Menu for `cvs-status-mode'."
61 ;; ["Show Tag Trees" cvs-status-tree t]
64 (defvar cvs-status-mode-hook nil
65 "Hook run at the end of `cvs-status-mode'.")
67 (defconst cvs-status-tags-leader-re
"^ Existing Tags:$")
68 (defconst cvs-status-entry-leader-re
69 "^File:\\s-+\\(?:no file \\)?\\(.*\\S-\\)\\s-+Status: \\(.+\\)$")
70 (defconst cvs-status-dir-re
"^cvs[.ex]* [a-z]+: Examining \\(.+\\)$")
71 (defconst cvs-status-rev-re
"[0-9][.0-9]*\\.[.0-9]*[0-9]")
72 (defconst cvs-status-tag-re
"[ \t]\\([a-zA-Z][^ \t\n.]*\\)")
74 (defconst cvs-status-font-lock-keywords
75 `((,cvs-status-entry-leader-re
76 (1 'cvs-filename-face
)
77 (2 'cvs-need-action-face
))
78 (,cvs-status-tags-leader-re
80 (save-excursion (re-search-forward "^\n" nil
'move
) (point))
81 (progn (re-search-backward cvs-status-tags-leader-re nil t
)
83 (0 font-lock-comment-face
))
85 (save-excursion (re-search-forward "^\n" nil
'move
) (point))
86 (progn (re-search-backward cvs-status-tags-leader-re nil t
)
88 (1 font-lock-function-name-face
)))))
89 (defconst cvs-status-font-lock-defaults
90 '(cvs-status-font-lock-keywords t nil nil nil
(font-lock-multiline . t
)))
92 (defvar cvs-minor-wrap-function
)
93 (put 'cvs-status-mode
'mode-class
'special
)
95 (define-derived-mode cvs-status-mode fundamental-mode
"CVS-Status"
96 "Mode used for cvs status output."
97 (set (make-local-variable 'font-lock-defaults
) cvs-status-font-lock-defaults
)
98 (set (make-local-variable 'cvs-minor-wrap-function
) 'cvs-status-minor-wrap
))
100 ;; Define cvs-status-next and cvs-status-prev
101 (easy-mmode-define-navigation cvs-status cvs-status-entry-leader-re
"entry")
103 (defun cvs-status-current-file ()
106 (or (re-search-backward cvs-status-entry-leader-re nil t
)
107 (re-search-forward cvs-status-entry-leader-re
))
108 (let* ((file (match-string 1))
109 (cvsdir (and (re-search-backward cvs-status-dir-re nil t
)
111 (pcldir (and (if (boundp 'cvs-pcl-cvs-dirchange-re
)
112 (re-search-backward cvs-pcl-cvs-dirchange-re nil t
))
115 (let ((default-directory ""))
116 (when pcldir
(setq dir
(expand-file-name pcldir dir
)))
117 (when cvsdir
(setq dir
(expand-file-name cvsdir dir
)))
118 (expand-file-name file dir
)))))
120 (defun cvs-status-current-tag ()
123 (col (current-column))
124 (start (progn (re-search-backward cvs-status-tags-leader-re nil t
) (point)))
125 (end (progn (re-search-forward "^$" nil t
) (point))))
126 (when (and (< start pt
) (> end pt
))
129 (let ((tag nil
) (dist pt
) (end (point)))
131 (while (re-search-forward cvs-status-tag-re end t
)
132 (let* ((cole (current-column))
133 (colb (save-excursion
134 (goto-char (match-beginning 1)) (current-column)))
135 (ndist (min (abs (- cole col
)) (abs (- colb col
)))))
138 (setq tag
(match-string 1)))))
141 (defun cvs-status-minor-wrap (buf f
)
142 (let ((data (with-current-buffer buf
144 (cons (cvs-status-current-file)
145 (cvs-status-current-tag))
149 (cons (cvs-status-current-file)
150 (cvs-status-current-tag))))))))
151 (let ((cvs-branch-prefix (cdar data
))
152 (cvs-secondary-branch-prefix (and (cdar data
) (cddr data
)))
153 (cvs-minor-current-files
155 (when (and (cadr data
) (not (equal (caar data
) (cadr data
))))
156 (list (cadr data
)))))
157 ;; FIXME: I need to force because the fileinfos are UNKNOWN
158 (cvs-force-command "/F"))
162 ;; Tagelt, tag element
167 (:constructor cvs-tag-make
168 (vlist &optional name type
))
169 (:conc-name cvs-tag-
>))
174 (defsubst cvs-status-vl-to-str
(vl) (mapconcat 'number-to-string vl
"."))
176 (defun cvs-tag->string
(tag)
177 (if (stringp tag
) tag
178 (let ((name (cvs-tag->name tag
))
179 (vl (cvs-tag->vlist tag
)))
180 (if (null name
) (cvs-status-vl-to-str vl
)
181 (let ((rev (if vl
(concat " (" (cvs-status-vl-to-str vl
) ")") "")))
182 (if (consp name
) (mapcar (lambda (name) (concat name rev
)) name
)
183 (concat name rev
)))))))
185 (defun cvs-tag-compare-1 (vl1 vl2
)
187 ((and (null vl1
) (null vl2
)) 'equal
)
190 (t (let ((v1 (car vl1
))
195 (t (cvs-tag-compare-1 (cdr vl1
) (cdr vl2
))))))))
197 (defsubst cvs-tag-compare
(tag1 tag2
)
198 (cvs-tag-compare-1 (cvs-tag->vlist tag1
) (cvs-tag->vlist tag2
)))
200 (defun cvs-tag-merge (tag1 tag2
)
201 "Merge TAG1 and TAG2 into one."
202 (let ((type1 (cvs-tag->type tag1
))
203 (type2 (cvs-tag->type tag2
))
204 (name1 (cvs-tag->name tag1
))
205 (name2 (cvs-tag->name tag2
)))
206 (unless (equal (cvs-tag->vlist tag1
) (cvs-tag->vlist tag2
))
207 (setf (cvs-tag->vlist tag1
) nil
))
209 (unless (or (not type2
) (equal type1 type2
))
210 (setf (cvs-tag->type tag1
) nil
))
211 (setf (cvs-tag->type tag1
) type2
))
213 (setf (cvs-tag->name tag1
) (cvs-append name1 name2
))
214 (setf (cvs-tag->name tag1
) name2
))
217 (defun cvs-tree-print (tags printer column
)
218 "Print the tree of TAGS where each tag's string is given by PRINTER.
219 PRINTER should accept both a tag (in which case it should return a string)
220 or a string (in which case it should simply return its argument).
221 A tag cannot be a CONS. The return value can also be a list of strings,
222 if several nodes where merged into one.
223 The tree will be printed no closer than column COLUMN."
225 (let* ((eol (save-excursion (end-of-line) (current-column)))
226 (column (max (+ eol
2) column
)))
227 (if (null tags
) column
228 ;;(move-to-column-force column)
229 (let* ((rev (cvs-car tags
))
230 (name (funcall printer
(cvs-car rev
)))
231 (rest (append (cvs-cdr name
) (cvs-cdr tags
)))
234 (or (= (forward-line 1) 0) (insert "\n"))
235 (cvs-tree-print rest printer column
))))
236 (assert (>= prefix column
))
237 (move-to-column prefix t
)
239 (insert (cvs-car name
))
240 (dolist (br (cvs-cdr rev
))
241 (let* ((column (current-column))
242 (brrev (funcall printer
(cvs-car br
)))
243 (brlength (length (cvs-car brrev
)))
244 (brfill (concat (make-string (/ brlength
2) ?
) "|"))
248 (cvs-tree-print (cvs-append brrev brfill
(cvs-cdr br
))
249 printer
(current-column)))))
250 (delete-region (save-excursion (move-to-column prefix
) (point))
252 (insert " " (make-string (- prefix column
2) ?-
) " ")
256 (defun cvs-tree-merge (tree1 tree2
)
257 "Merge tags trees TREE1 and TREE2 into one.
258 BEWARE: because of stability issues, this is not a symetric operation."
259 (assert (and (listp tree1
) (listp tree2
)))
264 (let* ((rev1 (car tree1
))
265 (tag1 (cvs-car rev1
))
266 (vl1 (cvs-tag->vlist tag1
))
269 (tag2 (cvs-car rev2
))
270 (vl2 (cvs-tag->vlist tag2
))
274 (case (cvs-tag-compare tag1 tag2
)
275 (more1 (list* rev2
(cvs-tree-merge tree1
(cdr tree2
))))
276 (more2 (list* rev1
(cvs-tree-merge (cdr tree1
) tree2
)))
278 (cons (cons (cvs-tag-merge tag1 tag2
)
279 (cvs-tree-merge (cvs-cdr rev1
) (cvs-cdr rev2
)))
280 (cvs-tree-merge (cdr tree1
) (cdr tree2
))))))
283 (list (cons (cvs-tag-make (butlast vl1
)) tree1
)) tree2
))
286 tree1
(list (cons (cvs-tag-make (butlast vl2
)) tree2
)))))))))
288 (defun cvs-tag-make-tag (tag)
289 (let ((vl (mapcar 'string-to-number
(split-string (nth 2 tag
) "\\."))))
290 (cvs-tag-make vl
(nth 0 tag
) (intern (nth 1 tag
)))))
292 (defun cvs-tags->tree
(tags)
293 "Make a tree out of a list of TAGS."
297 (let ((tag (cvs-tag-make-tag tag
)))
298 (list (if (not (eq (cvs-tag->type tag
) 'branch
)) tag
299 (list (cvs-tag-make (butlast (cvs-tag->vlist tag
)))
305 (push (cvs-tree-merge (pop tags
) (pop tags
)) tl
))
306 (setq tags
(nreverse tl
))))
309 (defun cvs-status-get-tags ()
310 "Look for a list of tags, read them in and delete them.
311 Return nil if there was an empty list of tags and t if there wasn't
312 even a list. Else, return the list of tags where each element of
313 the list is a three-string list TAG, KIND, REV."
315 (if (not (re-search-forward cvs-status-tags-leader-re nil t
)) t
319 (case-fold-search t
))
321 (looking-at "\\s-+no\\s-+tags")
323 (progn ; normal listing
324 (while (looking-at "^[ \t]+\\([^ \t\n]+\\)[ \t]+(\\([a-z]+\\): \\(.+\\))$")
325 (push (list (match-string 1) (match-string 2) (match-string 3)) tags
)
327 (unless (looking-at "^$") (setq tags nil
) (goto-char pt
))
330 (progn ; cvstree-style listing
331 (while (or (looking-at "^ .+\\(.\\) \\([0-9.]+\\): \\([^\n\t .0-9][^\n\t ]*\\)?$")
333 (looking-at "^ .+\\(\\) \\(8\\)? \\([^\n\t .0-9][^\n\t ]*\\)$")))
334 (setq lastrev
(or (match-string 2) lastrev
))
335 (push (list (match-string 3)
336 (if (equal (match-string 1) " ") "branch" "revision")
339 (unless (looking-at "^$") (setq tags nil
) (goto-char pt
))
340 (setq tags
(nreverse tags
)))
342 (progn ; new tree style listing
343 (let* ((re-lead "[ \t]*\\(-+\\)?\\(|\n?[ \t]+\\)*")
344 (re3 (concat re-lead
"\\(\\.\\)?\\(" cvs-status-rev-re
"\\)"))
345 (re2 (concat re-lead cvs-status-tag-re
"\\(\\)"))
346 (re1 (concat re-lead cvs-status-tag-re
347 " (\\(" cvs-status-rev-re
"\\))")))
348 (while (or (looking-at re1
) (looking-at re2
) (looking-at re3
))
349 (push (list (match-string 3)
350 (if (match-string 1) "branch" "revision")
351 (match-string 4)) tags
)
352 (goto-char (match-end 0))
353 (when (eolp) (forward-char 1))))
354 (unless (looking-at "^$") (setq tags nil
) (goto-char pt
))
355 (setq tags
(nreverse tags
))))
357 (delete-region pt
(point)))
360 (defvar font-lock-mode
)
361 (defun cvs-refontify (beg end
)
362 (when (and (boundp 'font-lock-mode
)
364 (fboundp 'font-lock-fontify-region
))
365 (font-lock-fontify-region (1- beg
) (1+ end
))))
367 (defun cvs-status-trees ()
368 "Look for a lists of tags, and replace them with trees."
371 (goto-char (point-min))
372 (let ((inhibit-read-only t
)
374 (while (listp (setq tags
(cvs-status-get-tags)))
375 ;;(let ((pt (save-excursion (forward-line -1) (point))))
377 (narrow-to-region (point) (point))
379 (combine-after-change-calls
380 (cvs-tree-print (cvs-tags->tree tags
) 'cvs-tag-
>string
3)))
381 ;;(cvs-refontify pt (point))
387 ;;;; CVSTree-style trees
390 (defvar cvs-tree-use-jisx0208 nil
) ;Old compat var.
391 (defvar cvs-tree-use-charset
393 (cvs-tree-use-jisx0208 'jisx0208
)
394 ((char-displayable-p ?━
) 'unicode
)
395 ((char-displayable-p (make-char 'japanese-jisx0208
40 44)) 'jisx0208
))
396 "*Non-nil if we should use the graphical glyphs from `japanese-jisx0208'.
397 Otherwise, default to ASCII chars like +, - and |.")
399 (defconst cvs-tree-char-space
400 (case cvs-tree-use-charset
401 (jisx0208 (make-char 'japanese-jisx0208
33 33))
404 (defconst cvs-tree-char-hbar
405 (case cvs-tree-use-charset
406 (jisx0208 (make-char 'japanese-jisx0208
40 44))
409 (defconst cvs-tree-char-vbar
410 (case cvs-tree-use-charset
411 (jisx0208 (make-char 'japanese-jisx0208
40 45))
414 (defconst cvs-tree-char-branch
415 (case cvs-tree-use-charset
416 (jisx0208 (make-char 'japanese-jisx0208
40 50))
419 (defconst cvs-tree-char-eob
;end of branch
420 (case cvs-tree-use-charset
421 (jisx0208 (make-char 'japanese-jisx0208
40 49))
424 (defconst cvs-tree-char-bob
;beginning of branch
425 (case cvs-tree-use-charset
426 (jisx0208 (make-char 'japanese-jisx0208
40 51))
430 (defun cvs-tag-lessp (tag1 tag2
)
431 (eq (cvs-tag-compare tag1 tag2
) 'more2
))
433 (defvar cvs-tree-nomerge nil
)
435 (defun cvs-status-cvstrees (&optional arg
)
436 "Look for a list of tags, and replace it with a tree.
437 Optional prefix ARG chooses between two representations."
439 (when (and cvs-tree-use-charset
440 (not enable-multibyte-characters
))
441 ;; We need to convert the buffer from unibyte to multibyte
442 ;; since we'll use multibyte chars for the tree.
443 (let ((modified (buffer-modified-p))
444 (inhibit-read-only t
)
445 (inhibit-modification-hooks t
))
448 (decode-coding-region (point-min) (point-max) 'undecided
)
449 (set-buffer-multibyte t
))
450 (restore-buffer-modified-p modified
))))
452 (goto-char (point-min))
453 (let ((inhibit-read-only t
)
455 (cvs-tree-nomerge (if arg
(not cvs-tree-nomerge
) cvs-tree-nomerge
)))
456 (while (listp (setq tags
(cvs-status-get-tags)))
457 (let ((tags (mapcar 'cvs-tag-make-tag tags
))
458 ;;(pt (save-excursion (forward-line -1) (point)))
460 (setq tags
(sort tags
'cvs-tag-lessp
))
461 (let* ((first (car tags
))
462 (prev (if (cvs-tag-p first
)
463 (list (car (cvs-tag->vlist first
))) nil
)))
464 (combine-after-change-calls
465 (cvs-tree-tags-insert tags prev
))
466 ;;(cvs-refontify pt (point))
470 (defun cvs-tree-tags-insert (tags prev
)
472 (let* ((tag (car tags
))
473 (vlist (cvs-tag->vlist tag
))
475 (let* ((next (cvs-car (cadr tags
)))
476 (nprev (if (and cvs-tree-nomerge next
477 (equal vlist
(cvs-tag->vlist next
)))
479 (cvs-map (lambda (v p
) v
) nprev prev
)))
480 (after (save-excursion
482 (cvs-tree-tags-insert (cdr tags
) nprev
)))
484 (nas nil
)) ;"next afters" to be returned
486 (do* ((vs vlist
(cdr vs
))
489 ((and (null as
) (null vs
) (null ps
))
490 (let ((revname (cvs-status-vl-to-str vlist
)))
491 (if (cvs-every 'identity
(cvs-map 'equal prev vlist
))
492 (insert (make-string (+ 4 (length revname
)) ?
)
493 (or (cvs-tag->name tag
) ""))
494 (insert " " revname
": " (or (cvs-tag->name tag
) "")))))
495 (let* ((eq (and pe
(equal (car ps
) (car vs
))))
496 (next-eq (equal (cadr ps
) (cadr vs
))))
500 (if next-eq
(cons t cvs-tree-char-vbar
)
501 (cons t cvs-tree-char-branch
))
502 (cons nil cvs-tree-char-bob
))
504 (if next-eq
(cons nil cvs-tree-char-space
)
505 (cons t cvs-tree-char-eob
))
506 (cons nil
(if (and (eq (cvs-tag->type tag
) 'branch
)
507 (cvs-every 'null as
))
509 cvs-tree-char-hbar
))))))
510 (insert (cdr na
+char
))
511 (push (car na
+char
) nas
))
516 ;;;; Merged trees from different files
519 (defun cvs-tree-fuzzy-merge-1 (trees tree prev
)
522 (defun cvs-tree-fuzzy-merge (trees tree
)
523 "Do the impossible: merge TREE into TREES."
527 "Get tags from the status output and merge tham all into a big tree."
529 (goto-char (point-min))
530 (let ((inhibit-read-only t
)
531 (trees (make-vector 31 0)) tree
)
532 (while (listp (setq tree
(cvs-tags->tree
(cvs-status-get-tags))))
533 (cvs-tree-fuzzy-merge trees tree
))
535 (let ((cvs-tag-print-rev nil
))
536 (cvs-tree-print tree
'cvs-tag-
>string
3)))))
539 (provide 'cvs-status
)
541 ;; arch-tag: db8b5094-d02a-473e-a476-544e89ff5ad0
542 ;;; cvs-status.el ends here