1 ;;; cvs-status.el --- major mode for browsing `cvs status' output -*- lexical-binding: t -*-
3 ;; Copyright (C) 1999-2016 Free Software Foundation, Inc.
5 ;; Author: Stefan Monnier <monnier@iro.umontreal.ca>
6 ;; Keywords: pcl-cvs cvs status tree vc 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 3 of the License, or
13 ;; (at your option) any later version.
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. If not, see <http://www.gnu.org/licenses/>.
27 ;; - Somehow allow cvs-status-tree to work on-the-fly
31 (eval-when-compile (require 'cl-lib
))
36 (defgroup cvs-status nil
37 "Major mode for browsing `cvs status' output."
39 :prefix
"cvs-status-")
41 (easy-mmode-defmap cvs-status-mode-map
44 ("N" . cvs-status-next
)
45 ("P" . cvs-status-prev
)
46 ("\M-n" . cvs-status-next
)
47 ("\M-p" . cvs-status-prev
)
48 ("t" . cvs-status-cvstrees
)
49 ("T" . cvs-status-trees
)
50 (">" . cvs-mode-checkout
))
53 :inherit
'cvs-mode-map
)
55 ;;(easy-menu-define cvs-status-menu cvs-status-mode-map
56 ;; "Menu for `cvs-status-mode'."
58 ;; ["Show Tag Trees" cvs-status-tree t]
61 (defvar cvs-status-mode-hook nil
62 "Hook run at the end of `cvs-status-mode'.")
64 (defconst cvs-status-tags-leader-re
"^ Existing Tags:$")
65 (defconst cvs-status-entry-leader-re
66 "^File:\\s-+\\(?:no file \\)?\\(.*\\S-\\)\\s-+Status: \\(.+\\)$")
67 (defconst cvs-status-dir-re
"^cvs[.ex]* [a-z]+: Examining \\(.+\\)$")
68 (defconst cvs-status-rev-re
"[0-9][.0-9]*\\.[.0-9]*[0-9]")
69 (defconst cvs-status-tag-re
"[ \t]\\([a-zA-Z][^ \t\n.]*\\)")
71 (defconst cvs-status-font-lock-keywords
72 `((,cvs-status-entry-leader-re
75 (,cvs-status-tags-leader-re
77 (save-excursion (re-search-forward "^\n" nil
'move
) (point))
78 (progn (re-search-backward cvs-status-tags-leader-re nil t
)
80 (0 font-lock-comment-face
))
82 (save-excursion (re-search-forward "^\n" nil
'move
) (point))
83 (progn (re-search-backward cvs-status-tags-leader-re nil t
)
85 (1 font-lock-function-name-face
)))))
86 (defconst cvs-status-font-lock-defaults
87 '(cvs-status-font-lock-keywords t nil nil nil
(font-lock-multiline . t
)))
89 (defvar cvs-minor-wrap-function
)
90 (defvar cvs-force-command
)
91 (defvar cvs-minor-current-files
)
92 (defvar cvs-secondary-branch-prefix
)
93 (defvar cvs-branch-prefix
)
94 (defvar cvs-tag-print-rev
)
96 (put 'cvs-status-mode
'mode-class
'special
)
98 (define-derived-mode cvs-status-mode fundamental-mode
"CVS-Status"
99 "Mode used for cvs status output."
100 (set (make-local-variable 'font-lock-defaults
) cvs-status-font-lock-defaults
)
101 (set (make-local-variable 'cvs-minor-wrap-function
) 'cvs-status-minor-wrap
))
103 ;; Define cvs-status-next and cvs-status-prev
104 (easy-mmode-define-navigation cvs-status cvs-status-entry-leader-re
"entry")
106 (defun cvs-status-current-file ()
109 (or (re-search-backward cvs-status-entry-leader-re nil t
)
110 (re-search-forward cvs-status-entry-leader-re
))
111 (let* ((file (match-string 1))
112 (cvsdir (and (re-search-backward cvs-status-dir-re nil t
)
114 (pcldir (and (if (boundp 'cvs-pcl-cvs-dirchange-re
)
115 (re-search-backward cvs-pcl-cvs-dirchange-re nil t
))
118 (let ((default-directory ""))
119 (when pcldir
(setq dir
(expand-file-name pcldir dir
)))
120 (when cvsdir
(setq dir
(expand-file-name cvsdir dir
)))
121 (expand-file-name file dir
)))))
123 (defun cvs-status-current-tag ()
126 (col (current-column))
127 (start (progn (re-search-backward cvs-status-tags-leader-re nil t
) (point)))
128 (end (progn (re-search-forward "^$" nil t
) (point))))
129 (when (and (< start pt
) (> end pt
))
132 (let ((tag nil
) (dist pt
) (end (point)))
134 (while (re-search-forward cvs-status-tag-re end t
)
135 (let* ((cole (current-column))
136 (colb (save-excursion
137 (goto-char (match-beginning 1)) (current-column)))
138 (ndist (min (abs (- cole col
)) (abs (- colb col
)))))
141 (setq tag
(match-string 1)))))
144 (defun cvs-status-minor-wrap (buf f
)
145 (let ((data (with-current-buffer buf
147 (cons (cvs-status-current-file)
148 (cvs-status-current-tag))
152 (cons (cvs-status-current-file)
153 (cvs-status-current-tag))))))))
154 (let ((cvs-branch-prefix (cdar data
))
155 (cvs-secondary-branch-prefix (and (cdar data
) (cddr data
)))
156 (cvs-minor-current-files
158 (when (and (cadr data
) (not (equal (caar data
) (cadr data
))))
159 (list (cadr data
)))))
160 ;; FIXME: I need to force because the fileinfos are UNKNOWN
161 (cvs-force-command "/F"))
165 ;; Tagelt, tag element
168 (cl-defstruct (cvs-tag
170 (:constructor cvs-tag-make
171 (vlist &optional name type
))
172 (:conc-name cvs-tag-
>))
177 (defsubst cvs-status-vl-to-str
(vl) (mapconcat 'number-to-string vl
"."))
179 (defun cvs-tag->string
(tag)
180 (if (stringp tag
) tag
181 (let ((name (cvs-tag->name tag
))
182 (vl (cvs-tag->vlist tag
)))
183 (if (null name
) (cvs-status-vl-to-str vl
)
184 (let ((rev (if vl
(concat " (" (cvs-status-vl-to-str vl
) ")") "")))
185 (if (consp name
) (mapcar (lambda (name) (concat name rev
)) name
)
186 (concat name rev
)))))))
188 (defun cvs-tag-compare-1 (vl1 vl2
)
190 ((and (null vl1
) (null vl2
)) 'equal
)
193 (t (let ((v1 (car vl1
))
198 (t (cvs-tag-compare-1 (cdr vl1
) (cdr vl2
))))))))
200 (defsubst cvs-tag-compare
(tag1 tag2
)
201 (cvs-tag-compare-1 (cvs-tag->vlist tag1
) (cvs-tag->vlist tag2
)))
203 (defun cvs-tag-merge (tag1 tag2
)
204 "Merge TAG1 and TAG2 into one."
205 (let ((type1 (cvs-tag->type tag1
))
206 (type2 (cvs-tag->type tag2
))
207 (name1 (cvs-tag->name tag1
))
208 (name2 (cvs-tag->name tag2
)))
209 (unless (equal (cvs-tag->vlist tag1
) (cvs-tag->vlist tag2
))
210 (setf (cvs-tag->vlist tag1
) nil
))
212 (unless (or (not type2
) (equal type1 type2
))
213 (setf (cvs-tag->type tag1
) nil
))
214 (setf (cvs-tag->type tag1
) type2
))
216 (setf (cvs-tag->name tag1
) (cvs-append name1 name2
))
217 (setf (cvs-tag->name tag1
) name2
))
220 (defun cvs-tree-print (tags printer column
)
221 "Print the tree of TAGS where each tag's string is given by PRINTER.
222 PRINTER should accept both a tag (in which case it should return a string)
223 or a string (in which case it should simply return its argument).
224 A tag cannot be a CONS. The return value can also be a list of strings,
225 if several nodes where merged into one.
226 The tree will be printed no closer than column COLUMN."
228 (let* ((eol (save-excursion (end-of-line) (current-column)))
229 (column (max (+ eol
2) column
)))
230 (if (null tags
) column
231 (let* ((rev (cvs-car tags
))
232 (name (funcall printer
(cvs-car rev
)))
233 (rest (append (cvs-cdr name
) (cvs-cdr tags
)))
236 (or (= (forward-line 1) 0) (insert "\n"))
237 (cvs-tree-print rest printer column
))))
238 (cl-assert (>= prefix column
))
239 (move-to-column prefix t
)
241 (insert (cvs-car name
))
242 (dolist (br (cvs-cdr rev
))
243 (let* ((column (current-column))
244 (brrev (funcall printer
(cvs-car br
)))
245 (brlength (length (cvs-car brrev
)))
246 (brfill (concat (make-string (/ brlength
2) ?
) "|"))
250 (cvs-tree-print (cvs-append brrev brfill
(cvs-cdr br
))
251 printer
(current-column)))))
252 (delete-region (save-excursion (move-to-column prefix
) (point))
254 (insert " " (make-string (- prefix column
2) ?-
) " ")
258 (defun cvs-tree-merge (tree1 tree2
)
259 "Merge tags trees TREE1 and TREE2 into one.
260 BEWARE: because of stability issues, this is not a symmetric operation."
261 (cl-assert (and (listp tree1
) (listp tree2
)))
266 (let* ((rev1 (car tree1
))
267 (tag1 (cvs-car rev1
))
268 (vl1 (cvs-tag->vlist tag1
))
271 (tag2 (cvs-car rev2
))
272 (vl2 (cvs-tag->vlist tag2
))
276 (pcase (cvs-tag-compare tag1 tag2
)
277 (`more1
(cons rev2
(cvs-tree-merge tree1
(cdr tree2
))))
278 (`more2
(cons rev1
(cvs-tree-merge (cdr tree1
) tree2
)))
280 (cons (cons (cvs-tag-merge tag1 tag2
)
281 (cvs-tree-merge (cvs-cdr rev1
) (cvs-cdr rev2
)))
282 (cvs-tree-merge (cdr tree1
) (cdr tree2
))))))
285 (list (cons (cvs-tag-make (butlast vl1
)) tree1
)) tree2
))
288 tree1
(list (cons (cvs-tag-make (butlast vl2
)) tree2
)))))))))
290 (defun cvs-tag-make-tag (tag)
291 (let ((vl (mapcar 'string-to-number
(split-string (nth 2 tag
) "\\."))))
292 (cvs-tag-make vl
(nth 0 tag
) (intern (nth 1 tag
)))))
294 (defun cvs-tags->tree
(tags)
295 "Make a tree out of a list of TAGS."
299 (let ((tag (cvs-tag-make-tag tag
)))
300 (list (if (not (eq (cvs-tag->type tag
) 'branch
)) tag
301 (list (cvs-tag-make (butlast (cvs-tag->vlist tag
)))
307 (push (cvs-tree-merge (pop tags
) (pop tags
)) tl
))
308 (setq tags
(nreverse tl
))))
311 (defun cvs-status-get-tags ()
312 "Look for a list of tags, read them in and delete them.
313 Return nil if there was an empty list of tags and t if there wasn't
314 even a list. Else, return the list of tags where each element of
315 the list is a three-string list TAG, KIND, REV."
317 (if (not (re-search-forward cvs-status-tags-leader-re nil t
)) t
321 (case-fold-search t
))
323 (looking-at "\\s-+no\\s-+tags")
325 (progn ; normal listing
326 (while (looking-at "^[ \t]+\\([^ \t\n]+\\)[ \t]+(\\([a-z]+\\): \\(.+\\))$")
327 (push (list (match-string 1) (match-string 2) (match-string 3)) tags
)
329 (unless (looking-at "^$") (setq tags nil
) (goto-char pt
))
332 (progn ; cvstree-style listing
333 (while (or (looking-at "^ .+\\(.\\) \\([0-9.]+\\): \\([^\n\t .0-9][^\n\t ]*\\)?$")
335 (looking-at "^ .+\\(\\) \\(8\\)? \\([^\n\t .0-9][^\n\t ]*\\)$")))
336 (setq lastrev
(or (match-string 2) lastrev
))
337 (push (list (match-string 3)
338 (if (equal (match-string 1) " ") "branch" "revision")
341 (unless (looking-at "^$") (setq tags nil
) (goto-char pt
))
342 (setq tags
(nreverse tags
)))
344 (progn ; new tree style listing
345 (let* ((re-lead "[ \t]*\\(-+\\)?\\(|\n?[ \t]+\\)*")
346 (re3 (concat re-lead
"\\(\\.\\)?\\(" cvs-status-rev-re
"\\)"))
347 (re2 (concat re-lead cvs-status-tag-re
"\\(\\)"))
348 (re1 (concat re-lead cvs-status-tag-re
349 " (\\(" cvs-status-rev-re
"\\))")))
350 (while (or (looking-at re1
) (looking-at re2
) (looking-at re3
))
351 (push (list (match-string 3)
352 (if (match-string 1) "branch" "revision")
353 (match-string 4)) tags
)
354 (goto-char (match-end 0))
355 (when (eolp) (forward-char 1))))
356 (unless (looking-at "^$") (setq tags nil
) (goto-char pt
))
357 (setq tags
(nreverse tags
))))
359 (delete-region pt
(point)))
362 (defvar font-lock-mode
)
363 ;; (defun cvs-refontify (beg end)
364 ;; (when (and (boundp 'font-lock-mode)
366 ;; (fboundp 'font-lock-fontify-region))
367 ;; (font-lock-fontify-region (1- beg) (1+ end))))
369 (defun cvs-status-trees ()
370 "Look for a lists of tags, and replace them with trees."
373 (goto-char (point-min))
374 (let ((inhibit-read-only t
)
376 (while (listp (setq tags
(cvs-status-get-tags)))
377 ;;(let ((pt (save-excursion (forward-line -1) (point))))
379 (narrow-to-region (point) (point))
381 (combine-after-change-calls
382 (cvs-tree-print (cvs-tags->tree tags
) 'cvs-tag-
>string
3)))
383 ;;(cvs-refontify pt (point))
389 ;;;; CVSTree-style trees
392 (defvar cvs-tree-use-jisx0208 nil
) ;Old compat var.
393 (defvar cvs-tree-use-charset
395 (cvs-tree-use-jisx0208 'jisx0208
)
396 ((char-displayable-p ?━
) 'unicode
)
397 ((char-displayable-p (make-char 'japanese-jisx0208
40 44)) 'jisx0208
))
398 "Non-nil if we should use the graphical glyphs from `japanese-jisx0208'.
399 Otherwise, default to ASCII chars like +, - and |.")
401 (defconst cvs-tree-char-space
402 (pcase cvs-tree-use-charset
403 (`jisx0208
(make-char 'japanese-jisx0208
33 33))
406 (defconst cvs-tree-char-hbar
407 (pcase cvs-tree-use-charset
408 (`jisx0208
(make-char 'japanese-jisx0208
40 44))
411 (defconst cvs-tree-char-vbar
412 (pcase cvs-tree-use-charset
413 (`jisx0208
(make-char 'japanese-jisx0208
40 45))
416 (defconst cvs-tree-char-branch
417 (pcase cvs-tree-use-charset
418 (`jisx0208
(make-char 'japanese-jisx0208
40 50))
421 (defconst cvs-tree-char-eob
;end of branch
422 (pcase cvs-tree-use-charset
423 (`jisx0208
(make-char 'japanese-jisx0208
40 49))
426 (defconst cvs-tree-char-bob
;beginning of branch
427 (pcase cvs-tree-use-charset
428 (`jisx0208
(make-char 'japanese-jisx0208
40 51))
432 (defun cvs-tag-lessp (tag1 tag2
)
433 (eq (cvs-tag-compare tag1 tag2
) 'more2
))
435 (defvar cvs-tree-nomerge nil
)
437 (defun cvs-status-cvstrees (&optional arg
)
438 "Look for a list of tags, and replace it with a tree.
439 Optional prefix ARG chooses between two representations."
441 (when (and cvs-tree-use-charset
442 (not enable-multibyte-characters
))
443 ;; We need to convert the buffer from unibyte to multibyte
444 ;; since we'll use multibyte chars for the tree.
445 (let ((modified (buffer-modified-p))
446 (inhibit-read-only t
)
447 (inhibit-modification-hooks t
))
450 (decode-coding-region (point-min) (point-max) 'undecided
)
451 (set-buffer-multibyte t
))
452 (restore-buffer-modified-p modified
))))
454 (goto-char (point-min))
455 (let ((inhibit-read-only t
)
457 (cvs-tree-nomerge (if arg
(not cvs-tree-nomerge
) cvs-tree-nomerge
)))
458 (while (listp (setq tags
(cvs-status-get-tags)))
459 (let ((tags (mapcar 'cvs-tag-make-tag tags
))
460 ;;(pt (save-excursion (forward-line -1) (point)))
462 (setq tags
(sort tags
'cvs-tag-lessp
))
463 (let* ((first (car tags
))
464 (prev (if (cvs-tag-p first
)
465 (list (car (cvs-tag->vlist first
))) nil
)))
466 (combine-after-change-calls
467 (cvs-tree-tags-insert tags prev
))
468 ;;(cvs-refontify pt (point))
472 (defun cvs-tree-tags-insert (tags prev
)
474 (let* ((tag (car tags
))
475 (vlist (cvs-tag->vlist tag
))
477 (let* ((next (cvs-car (cadr tags
)))
478 (nprev (if (and cvs-tree-nomerge next
479 (equal vlist
(cvs-tag->vlist next
)))
481 (cvs-map (lambda (v _p
) v
) nprev prev
)))
482 (after (save-excursion
484 (cvs-tree-tags-insert (cdr tags
) nprev
)))
486 (nas nil
)) ;"next afters" to be returned
488 (cl-do* ((vs vlist
(cdr vs
))
491 ((and (null as
) (null vs
) (null ps
))
492 (let ((revname (cvs-status-vl-to-str vlist
)))
493 (if (cvs-every 'identity
(cvs-map 'equal prev vlist
))
494 (insert (make-string (+ 4 (length revname
)) ?
)
495 (or (cvs-tag->name tag
) ""))
496 (insert " " revname
": " (or (cvs-tag->name tag
) "")))))
497 (let* ((eq (and pe
(equal (car ps
) (car vs
))))
498 (next-eq (equal (cadr ps
) (cadr vs
))))
502 (if next-eq
(cons t cvs-tree-char-vbar
)
503 (cons t cvs-tree-char-branch
))
504 (cons nil cvs-tree-char-bob
))
506 (if next-eq
(cons nil cvs-tree-char-space
)
507 (cons t cvs-tree-char-eob
))
508 (cons nil
(if (and (eq (cvs-tag->type tag
) 'branch
)
509 (cvs-every 'null as
))
511 cvs-tree-char-hbar
))))))
512 (insert (cdr na
+char
))
513 (push (car na
+char
) nas
))
518 ;;;; Merged trees from different files
521 ;; (defun cvs-tree-fuzzy-merge-1 (trees tree prev)
524 ;; (defun cvs-tree-fuzzy-merge (trees tree)
525 ;; "Do the impossible: merge TREE into TREES."
528 ;; (defun cvs-tree ()
529 ;; "Get tags from the status output and merge them all into a big tree."
531 ;; (goto-char (point-min))
532 ;; (let ((inhibit-read-only t)
533 ;; (trees (make-vector 31 0)) tree)
534 ;; (while (listp (setq tree (cvs-tags->tree (cvs-status-get-tags))))
535 ;; (cvs-tree-fuzzy-merge trees tree))
537 ;; (let ((cvs-tag-print-rev nil))
538 ;; (cvs-tree-print tree 'cvs-tag->string 3)))))
541 (provide 'cvs-status
)
543 ;;; cvs-status.el ends here