Avoid crash on composition (backport from trunk).
[emacs.git] / lisp / vc-bzr.el
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1 ;;; vc-bzr.el --- VC backend for the bzr revision control system
3 ;; Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
5 ;; Author: Dave Love <fx@gnu.org>
6 ;; Riccardo Murri <riccardo.murri@gmail.com>
7 ;; Keywords: tools
8 ;; Created: Sept 2006
9 ;; Version: 2008-01-04 (Bzr revno 25)
10 ;; URL: http://launchpad.net/vc-bzr
12 ;; This file is part of GNU Emacs.
14 ;; GNU Emacs is free software: you can redistribute it and/or modify
15 ;; it under the terms of the GNU General Public License as published by
16 ;; the Free Software Foundation, either version 3 of the License, or
17 ;; (at your option) any later version.
19 ;; GNU Emacs is distributed in the hope that it will be useful,
20 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 ;; GNU General Public License for more details.
24 ;; You should have received a copy of the GNU General Public License
25 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
27 ;;; Commentary:
29 ;; See <URL:http://bazaar-vcs.org/> concerning bzr. See
30 ;; <URL:http://launchpad.net/vc-bzr> for alternate development
31 ;; branches of `vc-bzr'.
33 ;; Load this library to register bzr support in VC.
35 ;; Known bugs
36 ;; ==========
38 ;; When editing a symlink and *both* the symlink and its target
39 ;; are bzr-versioned, `vc-bzr` presently runs `bzr status` on the
40 ;; symlink, thereby not detecting whether the actual contents
41 ;; (that is, the target contents) are changed.
42 ;; See https://bugs.launchpad.net/vc-bzr/+bug/116607
44 ;; For an up-to-date list of bugs, please see:
45 ;; https://bugs.launchpad.net/vc-bzr/+bugs
47 ;;; Properties of the backend
49 (defun vc-bzr-revision-granularity () 'repository)
50 (defun vc-bzr-checkout-model (files) 'implicit)
52 ;;; Code:
54 (eval-when-compile
55 (require 'cl)
56 (require 'vc) ;; for vc-exec-after
57 (require 'vc-dir))
59 ;; Clear up the cache to force vc-call to check again and discover
60 ;; new functions when we reload this file.
61 (put 'Bzr 'vc-functions nil)
63 (defgroup vc-bzr nil
64 "VC bzr backend."
65 :version "22.2"
66 :group 'vc)
68 (defcustom vc-bzr-program "bzr"
69 "Name of the bzr command (excluding any arguments)."
70 :group 'vc-bzr
71 :type 'string)
73 (defcustom vc-bzr-diff-switches nil
74 "String or list of strings specifying switches for bzr diff under VC.
75 If nil, use the value of `vc-diff-switches'. If t, use no switches."
76 :type '(choice (const :tag "Unspecified" nil)
77 (const :tag "None" t)
78 (string :tag "Argument String")
79 (repeat :tag "Argument List" :value ("") string))
80 :group 'vc-bzr)
82 (defcustom vc-bzr-log-switches nil
83 "String or list of strings specifying switches for bzr log under VC."
84 :type '(choice (const :tag "None" nil)
85 (string :tag "Argument String")
86 (repeat :tag "Argument List" :value ("") string))
87 :group 'vc-bzr)
89 ;; since v0.9, bzr supports removing the progress indicators
90 ;; by setting environment variable BZR_PROGRESS_BAR to "none".
91 (defun vc-bzr-command (bzr-command buffer okstatus file-or-list &rest args)
92 "Wrapper round `vc-do-command' using `vc-bzr-program' as COMMAND.
93 Invoke the bzr command adding `BZR_PROGRESS_BAR=none' and
94 `LC_MESSAGES=C' to the environment."
95 (let ((process-environment
96 (list* "BZR_PROGRESS_BAR=none" ; Suppress progress output (bzr >=0.9)
97 "LC_MESSAGES=C" ; Force English output
98 process-environment)))
99 (apply 'vc-do-command (or buffer "*vc*") okstatus vc-bzr-program
100 file-or-list bzr-command args)))
103 ;;;###autoload
104 (defconst vc-bzr-admin-dirname ".bzr"
105 "Name of the directory containing Bzr repository status files.")
106 ;;;###autoload
107 (defconst vc-bzr-admin-checkout-format-file
108 (concat vc-bzr-admin-dirname "/checkout/format"))
109 (defconst vc-bzr-admin-dirstate
110 (concat vc-bzr-admin-dirname "/checkout/dirstate"))
111 (defconst vc-bzr-admin-branch-format-file
112 (concat vc-bzr-admin-dirname "/branch/format"))
113 (defconst vc-bzr-admin-revhistory
114 (concat vc-bzr-admin-dirname "/branch/revision-history"))
115 (defconst vc-bzr-admin-lastrev
116 (concat vc-bzr-admin-dirname "/branch/last-revision"))
118 ;;;###autoload (defun vc-bzr-registered (file)
119 ;;;###autoload (if (vc-find-root file vc-bzr-admin-checkout-format-file)
120 ;;;###autoload (progn
121 ;;;###autoload (load "vc-bzr")
122 ;;;###autoload (vc-bzr-registered file))))
124 (defun vc-bzr-root (file)
125 "Return the root directory of the bzr repository containing FILE."
126 ;; Cache technique copied from vc-arch.el.
127 (or (vc-file-getprop file 'bzr-root)
128 (let ((root (vc-find-root file vc-bzr-admin-checkout-format-file)))
129 (when root (vc-file-setprop file 'bzr-root root)))))
131 (require 'sha1) ;For sha1-program
133 (defun vc-bzr-sha1 (file)
134 (with-temp-buffer
135 (set-buffer-multibyte nil)
136 (let ((prog sha1-program)
137 (args nil)
138 process-file-side-effects)
139 (when (consp prog)
140 (setq args (cdr prog))
141 (setq prog (car prog)))
142 (apply 'process-file prog (file-relative-name file) t nil args)
143 (buffer-substring (point-min) (+ (point-min) 40)))))
145 (defun vc-bzr-state-heuristic (file)
146 "Like `vc-bzr-state' but hopefully without running Bzr."
147 ;; `bzr status' was excrutiatingly slow with large histories and
148 ;; pending merges, so try to avoid using it until they fix their
149 ;; performance problems.
150 ;; This function tries first to parse Bzr internal file
151 ;; `checkout/dirstate', but it may fail if Bzr internal file format
152 ;; has changed. As a safeguard, the `checkout/dirstate' file is
153 ;; only parsed if it contains the string `#bazaar dirstate flat
154 ;; format 3' in the first line.
155 ;; If the `checkout/dirstate' file cannot be parsed, fall back to
156 ;; running `vc-bzr-state'."
157 (lexical-let ((root (vc-bzr-root file)))
158 (when root ; Short cut.
159 ;; This looks at internal files. May break if they change
160 ;; their format.
161 (lexical-let ((dirstate (expand-file-name vc-bzr-admin-dirstate root)))
162 (condition-case nil
163 (with-temp-buffer
164 (insert-file-contents dirstate)
165 (goto-char (point-min))
166 (if (not (looking-at "#bazaar dirstate flat format 3"))
167 (vc-bzr-state file) ; Some other unknown format?
168 (let* ((relfile (file-relative-name file root))
169 (reldir (file-name-directory relfile)))
170 (if (re-search-forward
171 (concat "^\0"
172 (if reldir (regexp-quote
173 (directory-file-name reldir)))
174 "\0"
175 (regexp-quote (file-name-nondirectory relfile))
176 "\0"
177 "[^\0]*\0" ;id?
178 "\\([^\0]*\\)\0" ;"a/f/d", a=removed?
179 "\\([^\0]*\\)\0" ;sha1 (empty if conflicted)?
180 "\\([^\0]*\\)\0" ;size?p
181 "[^\0]*\0" ;"y/n", executable?
182 "[^\0]*\0" ;?
183 "\\([^\0]*\\)\0" ;"a/f/d" a=added?
184 "\\([^\0]*\\)\0" ;sha1 again?
185 "\\([^\0]*\\)\0" ;size again?
186 "[^\0]*\0" ;"y/n", executable again?
187 "[^\0]*\0" ;last revid?
188 ;; There are more fields when merges are pending.
190 nil t)
191 ;; Apparently the second sha1 is the one we want: when
192 ;; there's a conflict, the first sha1 is absent (and the
193 ;; first size seems to correspond to the file with
194 ;; conflict markers).
195 (cond
196 ((eq (char-after (match-beginning 1)) ?a) 'removed)
197 ((eq (char-after (match-beginning 4)) ?a) 'added)
198 ((or (and (eq (string-to-number (match-string 3))
199 (nth 7 (file-attributes file)))
200 (equal (match-string 5)
201 (vc-bzr-sha1 file)))
202 (and
203 ;; It looks like for lightweight
204 ;; checkouts \2 is empty and we need to
205 ;; look for size in \6.
206 (eq (match-beginning 2) (match-end 2))
207 (eq (string-to-number (match-string 6))
208 (nth 7 (file-attributes file)))
209 (equal (match-string 5)
210 (vc-bzr-sha1 file))))
211 'up-to-date)
212 (t 'edited))
213 'unregistered))))
214 ;; Either the dirstate file can't be read, or the sha1
215 ;; executable is missing, or ...
216 ;; In either case, recent versions of Bzr aren't that slow
217 ;; any more.
218 (error (vc-bzr-state file)))))))
221 (defun vc-bzr-registered (file)
222 "Return non-nil if FILE is registered with bzr."
223 (let ((state (vc-bzr-state-heuristic file)))
224 (not (memq state '(nil unregistered ignored)))))
226 (defconst vc-bzr-state-words
227 "added\\|ignored\\|kind changed\\|modified\\|removed\\|renamed\\|unknown"
228 "Regexp matching file status words as reported in `bzr' output.")
230 (defun vc-bzr-file-name-relative (filename)
231 "Return file name FILENAME stripped of the initial Bzr repository path."
232 (lexical-let*
233 ((filename* (expand-file-name filename))
234 (rootdir (vc-bzr-root filename*)))
235 (when rootdir
236 (file-relative-name filename* rootdir))))
238 (defun vc-bzr-status (file)
239 "Return FILE status according to Bzr.
240 Return value is a cons (STATUS . WARNING), where WARNING is a
241 string or nil, and STATUS is one of the symbols: `added',
242 `ignored', `kindchanged', `modified', `removed', `renamed', `unknown',
243 which directly correspond to `bzr status' output, or 'unchanged
244 for files whose copy in the working tree is identical to the one
245 in the branch repository, or nil for files that are not
246 registered with Bzr.
248 If any error occurred in running `bzr status', then return nil."
249 (with-temp-buffer
250 (let ((ret (condition-case nil
251 (vc-bzr-command "status" t 0 file)
252 (file-error nil))) ; vc-bzr-program not found.
253 (status 'unchanged))
254 ;; the only secure status indication in `bzr status' output
255 ;; is a couple of lines following the pattern::
256 ;; | <status>:
257 ;; | <file name>
258 ;; if the file is up-to-date, we get no status report from `bzr',
259 ;; so if the regexp search for the above pattern fails, we consider
260 ;; the file to be up-to-date.
261 (goto-char (point-min))
262 (when (re-search-forward
263 ;; bzr prints paths relative to the repository root.
264 (concat "^\\(" vc-bzr-state-words "\\):[ \t\n]+"
265 (regexp-quote (vc-bzr-file-name-relative file))
266 ;; Bzr appends a '/' to directory names and
267 ;; '*' to executable files
268 (if (file-directory-p file) "/?" "\\*?")
269 "[ \t\n]*$")
270 nil t)
271 (lexical-let ((statusword (match-string 1)))
272 ;; Erase the status text that matched.
273 (delete-region (match-beginning 0) (match-end 0))
274 (setq status
275 (intern (replace-regexp-in-string " " "" statusword)))))
276 (when status
277 (goto-char (point-min))
278 (skip-chars-forward " \n\t") ;Throw away spaces.
279 (cons status
280 ;; "bzr" will output warnings and informational messages to
281 ;; stderr; due to Emacs' `vc-do-command' (and, it seems,
282 ;; `start-process' itself) limitations, we cannot catch stderr
283 ;; and stdout into different buffers. So, if there's anything
284 ;; left in the buffer after removing the above status
285 ;; keywords, let us just presume that any other message from
286 ;; "bzr" is a user warning, and display it.
287 (unless (eobp) (buffer-substring (point) (point-max))))))))
289 (defun vc-bzr-state (file)
290 (lexical-let ((result (vc-bzr-status file)))
291 (when (consp result)
292 (when (cdr result)
293 (message "Warnings in `bzr' output: %s" (cdr result)))
294 (cdr (assq (car result)
295 '((added . added)
296 (kindchanged . edited)
297 (renamed . edited)
298 (modified . edited)
299 (removed . removed)
300 (ignored . ignored)
301 (unknown . unregistered)
302 (unchanged . up-to-date)))))))
304 (defun vc-bzr-resolve-when-done ()
305 "Call \"bzr resolve\" if the conflict markers have been removed."
306 (save-excursion
307 (goto-char (point-min))
308 (unless (re-search-forward "^<<<<<<< " nil t)
309 (vc-bzr-command "resolve" nil 0 buffer-file-name)
310 ;; Remove the hook so that it is not called multiple times.
311 (remove-hook 'after-save-hook 'vc-bzr-resolve-when-done t))))
313 (defun vc-bzr-find-file-hook ()
314 (when (and buffer-file-name
315 ;; FIXME: We should check that "bzr status" says "conflict".
316 (file-exists-p (concat buffer-file-name ".BASE"))
317 (file-exists-p (concat buffer-file-name ".OTHER"))
318 (file-exists-p (concat buffer-file-name ".THIS"))
319 ;; If "bzr status" says there's a conflict but there are no
320 ;; conflict markers, it's not clear what we should do.
321 (save-excursion
322 (goto-char (point-min))
323 (re-search-forward "^<<<<<<< " nil t)))
324 ;; TODO: the merge algorithm used in `bzr merge' is nicely configurable,
325 ;; but the one in `bzr pull' isn't, so it would be good to provide an
326 ;; elisp function to remerge from the .BASE/OTHER/THIS files.
327 (smerge-start-session)
328 (add-hook 'after-save-hook 'vc-bzr-resolve-when-done nil t)
329 (message "There are unresolved conflicts in this file")))
331 (defun vc-bzr-workfile-unchanged-p (file)
332 (eq 'unchanged (car (vc-bzr-status file))))
334 (defun vc-bzr-working-revision (file)
335 ;; Together with the code in vc-state-heuristic, this makes it possible
336 ;; to get the initial VC state of a Bzr file even if Bzr is not installed.
337 (lexical-let*
338 ((rootdir (vc-bzr-root file))
339 (branch-format-file (expand-file-name vc-bzr-admin-branch-format-file
340 rootdir))
341 (revhistory-file (expand-file-name vc-bzr-admin-revhistory rootdir))
342 (lastrev-file (expand-file-name vc-bzr-admin-lastrev rootdir)))
343 ;; This looks at internal files to avoid forking a bzr process.
344 ;; May break if they change their format.
345 (if (and (file-exists-p branch-format-file)
346 ;; For lightweight checkouts (obtained with bzr checkout --lightweight)
347 ;; the branch-format-file does not contain the revision
348 ;; information, we need to look up the branch-format-file
349 ;; in the place where the lightweight checkout comes
350 ;; from. We only do that if it's a local file.
351 (let ((location-fname (expand-file-name
352 (concat vc-bzr-admin-dirname
353 "/branch/location") rootdir)))
354 ;; The existence of this file is how we distinguish
355 ;; lightweight checkouts.
356 (if (file-exists-p location-fname)
357 (with-temp-buffer
358 (insert-file-contents location-fname)
359 ;; If the lightweight checkout points to a
360 ;; location in the local file system, then we can
361 ;; look there for the version information.
362 (when (re-search-forward "file://\\(.+\\)" nil t)
363 (let ((l-c-parent-dir (match-string 1)))
364 (when (and (memq system-type '(ms-dos windows-nt))
365 (string-match-p "^/[[:alpha:]]:" l-c-parent-dir))
366 ;;; The non-Windows code takes a shortcut by using the host/path
367 ;;; separator slash as the start of the absolute path. That
368 ;;; does not work on Windows, so we must remove it (bug#5345)
369 (setq l-c-parent-dir (substring l-c-parent-dir 1)))
370 (setq branch-format-file
371 (expand-file-name vc-bzr-admin-branch-format-file
372 l-c-parent-dir))
373 (setq lastrev-file
374 (expand-file-name vc-bzr-admin-lastrev l-c-parent-dir))
375 ;; FIXME: maybe it's overkill to check if both these files exist.
376 (and (file-exists-p branch-format-file)
377 (file-exists-p lastrev-file)))))
378 t)))
379 (with-temp-buffer
380 (insert-file-contents branch-format-file)
381 (goto-char (point-min))
382 (cond
383 ((or
384 (looking-at "Bazaar-NG branch, format 0.0.4")
385 (looking-at "Bazaar-NG branch format 5"))
386 ;; count lines in .bzr/branch/revision-history
387 (insert-file-contents revhistory-file)
388 (number-to-string (count-lines (line-end-position) (point-max))))
389 ((or
390 (looking-at "Bazaar Branch Format 6 (bzr 0.15)")
391 (looking-at "Bazaar Branch Format 7 (needs bzr 1.6)"))
392 ;; revno is the first number in .bzr/branch/last-revision
393 (insert-file-contents lastrev-file)
394 (when (re-search-forward "[0-9]+" nil t)
395 (buffer-substring (match-beginning 0) (match-end 0))))))
396 ;; fallback to calling "bzr revno"
397 (lexical-let*
398 ((result (vc-bzr-command-discarding-stderr
399 vc-bzr-program "revno" (file-relative-name file)))
400 (exitcode (car result))
401 (output (cdr result)))
402 (cond
403 ((eq exitcode 0) (substring output 0 -1))
404 (t nil))))))
406 (defun vc-bzr-create-repo ()
407 "Create a new Bzr repository."
408 (vc-bzr-command "init" nil 0 nil))
410 (defun vc-bzr-init-revision (&optional file)
411 "Always return nil, as Bzr cannot register explicit versions."
412 nil)
414 (defun vc-bzr-previous-revision (file rev)
415 (if (string-match "\\`[0-9]+\\'" rev)
416 (number-to-string (1- (string-to-number rev)))
417 (concat "before:" rev)))
419 (defun vc-bzr-next-revision (file rev)
420 (if (string-match "\\`[0-9]+\\'" rev)
421 (number-to-string (1+ (string-to-number rev)))
422 (error "Don't know how to compute the next revision of %s" rev)))
424 (defun vc-bzr-register (files &optional rev comment)
425 "Register FILE under bzr.
426 Signal an error unless REV is nil.
427 COMMENT is ignored."
428 (if rev (error "Can't register explicit revision with bzr"))
429 (vc-bzr-command "add" nil 0 files))
431 ;; Could run `bzr status' in the directory and see if it succeeds, but
432 ;; that's relatively expensive.
433 (defalias 'vc-bzr-responsible-p 'vc-bzr-root
434 "Return non-nil if FILE is (potentially) controlled by bzr.
435 The criterion is that there is a `.bzr' directory in the same
436 or a superior directory.")
438 (defun vc-bzr-could-register (file)
439 "Return non-nil if FILE could be registered under bzr."
440 (and (vc-bzr-responsible-p file) ; shortcut
441 (condition-case ()
442 (with-temp-buffer
443 (vc-bzr-command "add" t 0 file "--dry-run")
444 ;; The command succeeds with no output if file is
445 ;; registered (in bzr 0.8).
446 (goto-char (point-min))
447 (looking-at "added "))
448 (error))))
450 (defun vc-bzr-unregister (file)
451 "Unregister FILE from bzr."
452 (vc-bzr-command "remove" nil 0 file "--keep"))
454 (declare-function log-edit-extract-headers "log-edit" (headers string))
456 (defun vc-bzr-checkin (files rev comment)
457 "Check FILE in to bzr with log message COMMENT.
458 REV non-nil gets an error."
459 (if rev (error "Can't check in a specific revision with bzr"))
460 (apply 'vc-bzr-command "commit" nil 0
461 files (cons "-m" (log-edit-extract-headers '(("Author" . "--author")
462 ("Date" . "--commit-time")
463 ("Fixes" . "--fixes"))
464 comment))))
466 (defun vc-bzr-find-revision (file rev buffer)
467 "Fetch revision REV of file FILE and put it into BUFFER."
468 (with-current-buffer buffer
469 (if (and rev (stringp rev) (not (string= rev "")))
470 (vc-bzr-command "cat" t 0 file "-r" rev)
471 (vc-bzr-command "cat" t 0 file))))
473 (defun vc-bzr-checkout (file &optional editable rev)
474 (if rev (error "Operation not supported")
475 ;; Else, there's nothing to do.
476 nil))
478 (defun vc-bzr-revert (file &optional contents-done)
479 (unless contents-done
480 (with-temp-buffer (vc-bzr-command "revert" t 0 file))))
482 (defvar log-view-message-re)
483 (defvar log-view-file-re)
484 (defvar log-view-font-lock-keywords)
485 (defvar log-view-current-tag-function)
486 (defvar log-view-per-file-logs)
488 (define-derived-mode vc-bzr-log-view-mode log-view-mode "Bzr-Log-View"
489 (remove-hook 'log-view-mode-hook 'vc-bzr-log-view-mode) ;Deactivate the hack.
490 (require 'add-log)
491 (set (make-local-variable 'log-view-per-file-logs) nil)
492 (set (make-local-variable 'log-view-file-re) "\\`a\\`")
493 (set (make-local-variable 'log-view-message-re)
494 (if (eq vc-log-view-type 'short)
495 "^ *\\([0-9.]+\\): \\(.*?\\)[ \t]+\\([0-9]\\{4\\}-[0-9]\\{2\\}-[0-9]\\{2\\}\\)\\( \\[merge\\]\\)?"
496 "^ *\\(?:revno: \\([0-9.]+\\)\\|merged: .+\\)"))
497 (set (make-local-variable 'log-view-font-lock-keywords)
498 ;; log-view-font-lock-keywords is careful to use the buffer-local
499 ;; value of log-view-message-re only since Emacs-23.
500 (if (eq vc-log-view-type 'short)
501 (append `((,log-view-message-re
502 (1 'log-view-message-face)
503 (2 'change-log-name)
504 (3 'change-log-date)
505 (4 'change-log-list nil lax))))
506 (append `((,log-view-message-re . 'log-view-message-face))
507 ;; log-view-font-lock-keywords
508 '(("^ *\\(?:committer\\|author\\): \
509 \\([^<(]+?\\)[ ]*[(<]\\([[:alnum:]_.+-]+@[[:alnum:]_.-]+\\)[>)]"
510 (1 'change-log-name)
511 (2 'change-log-email))
512 ("^ *timestamp: \\(.*\\)" (1 'change-log-date-face)))))))
514 (defun vc-bzr-print-log (files buffer &optional shortlog start-revision limit)
515 "Get bzr change log for FILES into specified BUFFER."
516 ;; `vc-do-command' creates the buffer, but we need it before running
517 ;; the command.
518 (vc-setup-buffer buffer)
519 ;; If the buffer exists from a previous invocation it might be
520 ;; read-only.
521 ;; FIXME: `vc-bzr-command' runs `bzr log' with `LC_MESSAGES=C', so
522 ;; the log display may not what the user wants - but I see no other
523 ;; way of getting the above regexps working.
524 (with-current-buffer buffer
525 (apply 'vc-bzr-command "log" buffer 'async files
526 (append
527 (when shortlog '("--line"))
528 (when start-revision (list (format "-r..%s" start-revision)))
529 (when limit (list "-l" (format "%s" limit)))
530 (if (stringp vc-bzr-log-switches)
531 (list vc-bzr-log-switches)
532 vc-bzr-log-switches)))))
534 (defun vc-bzr-log-incoming (buffer remote-location)
535 (apply 'vc-bzr-command "missing" buffer 'async nil
536 (list "--theirs-only" (unless (string= remote-location "") remote-location))))
538 (defun vc-bzr-log-outgoing (buffer remote-location)
539 (apply 'vc-bzr-command "missing" buffer 'async nil
540 (list "--mine-only" (unless (string= remote-location "") remote-location))))
542 (defun vc-bzr-show-log-entry (revision)
543 "Find entry for patch name REVISION in bzr change log buffer."
544 (goto-char (point-min))
545 (when revision
546 (let (case-fold-search
547 found)
548 (if (re-search-forward
549 ;; "revno:" can appear either at the beginning of a line,
550 ;; or indented.
551 (concat "^[ ]*-+\n[ ]*revno: "
552 ;; The revision can contain ".", quote it so that it
553 ;; does not interfere with regexp matching.
554 (regexp-quote revision) "$") nil t)
555 (progn
556 (beginning-of-line 0)
557 (setq found t))
558 (goto-char (point-min)))
559 found)))
561 (defun vc-bzr-diff (files &optional rev1 rev2 buffer)
562 "VC bzr backend for diff."
563 ;; `bzr diff' exits with code 1 if diff is non-empty.
564 (apply #'vc-bzr-command "diff" (or buffer "*vc-diff*")
565 (if vc-disable-async-diff 1 'async) files
566 "--diff-options" (mapconcat 'identity
567 (vc-switches 'bzr 'diff)
568 " ")
569 ;; This `when' is just an optimization because bzr-1.2 is *much*
570 ;; faster when the revision argument is not given.
571 (when (or rev1 rev2)
572 (list "-r" (format "%s..%s"
573 (or rev1 "revno:-1")
574 (or rev2 ""))))))
577 ;; FIXME: vc-{next,previous}-revision need fixing in vc.el to deal with
578 ;; straight integer revisions.
580 (defun vc-bzr-delete-file (file)
581 "Delete FILE and delete it in the bzr repository."
582 (condition-case ()
583 (delete-file file)
584 (file-error nil))
585 (vc-bzr-command "remove" nil 0 file))
587 (defun vc-bzr-rename-file (old new)
588 "Rename file from OLD to NEW using `bzr mv'."
589 (vc-bzr-command "mv" nil 0 new old))
591 (defvar vc-bzr-annotation-table nil
592 "Internal use.")
593 (make-variable-buffer-local 'vc-bzr-annotation-table)
595 (defun vc-bzr-annotate-command (file buffer &optional revision)
596 "Prepare BUFFER for `vc-annotate' on FILE.
597 Each line is tagged with the revision number, which has a `help-echo'
598 property containing author and date information."
599 (apply #'vc-bzr-command "annotate" buffer 'async file "--long" "--all"
600 (if revision (list "-r" revision)))
601 (lexical-let ((table (make-hash-table :test 'equal)))
602 (set-process-filter
603 (get-buffer-process buffer)
604 (lambda (proc string)
605 (when (process-buffer proc)
606 (with-current-buffer (process-buffer proc)
607 (setq string (concat (process-get proc :vc-left-over) string))
608 (while (string-match "^\\( *[0-9.]+ *\\) \\(.+?\\) +\\([0-9]\\{8\\}\\)\\( |.*\n\\)" string)
609 (let* ((rev (match-string 1 string))
610 (author (match-string 2 string))
611 (date (match-string 3 string))
612 (key (substring string (match-beginning 0)
613 (match-beginning 4)))
614 (line (match-string 4 string))
615 (tag (gethash key table))
616 (inhibit-read-only t))
617 (setq string (substring string (match-end 0)))
618 (unless tag
619 (setq tag
620 (propertize
621 (format "%s %-7.7s" rev author)
622 'help-echo (format "Revision: %d, author: %s, date: %s"
623 (string-to-number rev)
624 author date)
625 'mouse-face 'highlight))
626 (puthash key tag table))
627 (goto-char (process-mark proc))
628 (insert tag line)
629 (move-marker (process-mark proc) (point))))
630 (process-put proc :vc-left-over string)))))))
632 (declare-function vc-annotate-convert-time "vc-annotate" (time))
634 (defun vc-bzr-annotate-time ()
635 (when (re-search-forward "^ *[0-9.]+ +.+? +|" nil t)
636 (let ((prop (get-text-property (line-beginning-position) 'help-echo)))
637 (string-match "[0-9]+\\'" prop)
638 (let ((str (match-string-no-properties 0 prop)))
639 (vc-annotate-convert-time
640 (encode-time 0 0 0
641 (string-to-number (substring str 6 8))
642 (string-to-number (substring str 4 6))
643 (string-to-number (substring str 0 4))))))))
645 (defun vc-bzr-annotate-extract-revision-at-line ()
646 "Return revision for current line of annoation buffer, or nil.
647 Return nil if current line isn't annotated."
648 (save-excursion
649 (beginning-of-line)
650 (if (looking-at "^ *\\([0-9.]+\\) +[^\n ]* +|")
651 (match-string-no-properties 1))))
653 (defun vc-bzr-command-discarding-stderr (command &rest args)
654 "Execute shell command COMMAND (with ARGS); return its output and exitcode.
655 Return value is a cons (EXITCODE . OUTPUT), where EXITCODE is
656 the (numerical) exit code of the process, and OUTPUT is a string
657 containing whatever the process sent to its standard output
658 stream. Standard error output is discarded."
659 (with-temp-buffer
660 (cons
661 (apply #'process-file command nil (list (current-buffer) nil) nil args)
662 (buffer-substring (point-min) (point-max)))))
664 (defstruct (vc-bzr-extra-fileinfo
665 (:copier nil)
666 (:constructor vc-bzr-create-extra-fileinfo (extra-name))
667 (:conc-name vc-bzr-extra-fileinfo->))
668 extra-name) ;; original name for rename targets, new name for
670 (defun vc-bzr-dir-printer (info)
671 "Pretty-printer for the vc-dir-fileinfo structure."
672 (let ((extra (vc-dir-fileinfo->extra info)))
673 (vc-default-dir-printer 'Bzr info)
674 (when extra
675 (insert (propertize
676 (format " (renamed from %s)"
677 (vc-bzr-extra-fileinfo->extra-name extra))
678 'face 'font-lock-comment-face)))))
680 ;; FIXME: this needs testing, it's probably incomplete.
681 (defun vc-bzr-after-dir-status (update-function relative-dir)
682 (let ((status-str nil)
683 (translation '(("+N " . added)
684 ("-D " . removed)
685 (" M " . edited) ;; file text modified
686 (" *" . edited) ;; execute bit changed
687 (" M*" . edited) ;; text modified + execute bit changed
688 ;; FIXME: what about ignored files?
689 (" D " . missing)
690 ;; For conflicts, should we list the .THIS/.BASE/.OTHER?
691 ("C " . conflict)
692 ("? " . unregistered)
693 ;; No such state, but we need to distinguish this case.
694 ("R " . renamed)
695 ("RM " . renamed)
696 ;; For a non existent file FOO, the output is:
697 ;; bzr: ERROR: Path(s) do not exist: FOO
698 ("bzr" . not-found)
699 ;; If the tree is not up to date, bzr will print this warning:
700 ;; working tree is out of date, run 'bzr update'
701 ;; ignore it.
702 ;; FIXME: maybe this warning can be put in the vc-dir header...
703 ("wor" . not-found)
704 ;; Ignore "P " and "P." for pending patches.
705 ("P " . not-found)
706 ("P. " . not-found)
708 (translated nil)
709 (result nil))
710 (goto-char (point-min))
711 (while (not (eobp))
712 (setq status-str
713 (buffer-substring-no-properties (point) (+ (point) 3)))
714 (setq translated (cdr (assoc status-str translation)))
715 (cond
716 ((eq translated 'conflict)
717 ;; For conflicts the file appears twice in the listing: once
718 ;; with the M flag and once with the C flag, so take care
719 ;; not to add it twice to `result'. Ugly.
720 (let* ((file
721 (buffer-substring-no-properties
722 ;;For files with conflicts the format is:
723 ;;C Text conflict in FILENAME
724 ;; Bah.
725 (+ (point) 21) (line-end-position)))
726 (entry (assoc file result)))
727 (when entry
728 (setf (nth 1 entry) 'conflict))))
729 ((eq translated 'renamed)
730 (re-search-forward "R[ M] \\(.*\\) => \\(.*\\)$" (line-end-position) t)
731 (let ((new-name (file-relative-name (match-string 2) relative-dir))
732 (old-name (file-relative-name (match-string 1) relative-dir)))
733 (push (list new-name 'edited
734 (vc-bzr-create-extra-fileinfo old-name)) result)))
735 ;; do nothing for non existent files
736 ((eq translated 'not-found))
738 (push (list (file-relative-name
739 (buffer-substring-no-properties
740 (+ (point) 4)
741 (line-end-position)) relative-dir)
742 translated) result)))
743 (forward-line))
744 (funcall update-function result)))
746 (defun vc-bzr-dir-status (dir update-function)
747 "Return a list of conses (file . state) for DIR."
748 (vc-bzr-command "status" (current-buffer) 'async dir "-v" "-S")
749 (vc-exec-after
750 `(vc-bzr-after-dir-status (quote ,update-function)
751 ;; "bzr status" results are relative to
752 ;; the bzr root directory, NOT to the
753 ;; directory "bzr status" was invoked in.
754 ;; Ugh.
755 ;; We pass the relative directory here so
756 ;; that `vc-bzr-after-dir-status' can
757 ;; frob the results accordingly.
758 (file-relative-name ,dir (vc-bzr-root ,dir)))))
760 (defun vc-bzr-dir-status-files (dir files default-state update-function)
761 "Return a list of conses (file . state) for DIR."
762 (apply 'vc-bzr-command "status" (current-buffer) 'async dir "-v" "-S" files)
763 (vc-exec-after
764 `(vc-bzr-after-dir-status (quote ,update-function)
765 (file-relative-name ,dir (vc-bzr-root ,dir)))))
767 (defvar vc-bzr-shelve-map
768 (let ((map (make-sparse-keymap)))
769 ;; Turn off vc-dir marking
770 (define-key map [mouse-2] 'ignore)
772 (define-key map [down-mouse-3] 'vc-bzr-shelve-menu)
773 (define-key map "\C-k" 'vc-bzr-shelve-delete-at-point)
774 (define-key map "=" 'vc-bzr-shelve-show-at-point)
775 (define-key map "\C-m" 'vc-bzr-shelve-show-at-point)
776 (define-key map "A" 'vc-bzr-shelve-apply-and-keep-at-point)
777 (define-key map "P" 'vc-bzr-shelve-apply-at-point)
778 (define-key map "S" 'vc-bzr-shelve-snapshot)
779 map))
781 (defvar vc-bzr-shelve-menu-map
782 (let ((map (make-sparse-keymap "Bzr Shelve")))
783 (define-key map [de]
784 '(menu-item "Delete shelf" vc-bzr-shelve-delete-at-point
785 :help "Delete the current shelf"))
786 (define-key map [ap]
787 '(menu-item "Apply and keep shelf" vc-bzr-shelve-apply-and-keep-at-point
788 :help "Apply the current shelf and keep it"))
789 (define-key map [po]
790 '(menu-item "Apply and remove shelf (pop)" vc-bzr-shelve-apply-at-point
791 :help "Apply the current shelf and remove it"))
792 (define-key map [sh]
793 '(menu-item "Show shelve" vc-bzr-shelve-show-at-point
794 :help "Show the contents of the current shelve"))
795 map))
797 (defvar vc-bzr-extra-menu-map
798 (let ((map (make-sparse-keymap)))
799 (define-key map [bzr-sn]
800 '(menu-item "Shelve a snapshot" vc-bzr-shelve-snapshot
801 :help "Shelve the current state of the tree and keep the current state"))
802 (define-key map [bzr-sh]
803 '(menu-item "Shelve..." vc-bzr-shelve
804 :help "Shelve changes"))
805 map))
807 (defun vc-bzr-extra-menu () vc-bzr-extra-menu-map)
809 (defun vc-bzr-extra-status-menu () vc-bzr-extra-menu-map)
811 (defun vc-bzr-dir-extra-headers (dir)
812 (let*
813 ((str (with-temp-buffer
814 (vc-bzr-command "info" t 0 dir)
815 (buffer-string)))
816 (shelve (vc-bzr-shelve-list))
817 (shelve-help-echo "Use M-x vc-bzr-shelve to create shelves")
818 (root-dir (vc-bzr-root dir))
819 (pending-merge
820 ;; FIXME: looking for .bzr/checkout/merge-hashes is not a
821 ;; reliable method to detect pending merges, disable this
822 ;; until a proper solution is implemented.
823 (and nil
824 (file-exists-p
825 (expand-file-name ".bzr/checkout/merge-hashes" root-dir))))
826 (pending-merge-help-echo
827 (format "A merge has been performed.\nA commit from the top-level directory (%s)\nis required before being able to check in anything else" root-dir))
828 (light-checkout
829 (when (string-match ".+light checkout root: \\(.+\\)$" str)
830 (match-string 1 str)))
831 (light-checkout-branch
832 (when light-checkout
833 (when (string-match ".+checkout of branch: \\(.+\\)$" str)
834 (match-string 1 str)))))
835 (concat
836 (propertize "Parent branch : " 'face 'font-lock-type-face)
837 (propertize
838 (if (string-match "parent branch: \\(.+\\)$" str)
839 (match-string 1 str)
840 "None")
841 'face 'font-lock-variable-name-face)
842 "\n"
843 (when light-checkout
844 (concat
845 (propertize "Light checkout root: " 'face 'font-lock-type-face)
846 (propertize light-checkout 'face 'font-lock-variable-name-face)
847 "\n"))
848 (when light-checkout-branch
849 (concat
850 (propertize "Checkout of branch : " 'face 'font-lock-type-face)
851 (propertize light-checkout-branch 'face 'font-lock-variable-name-face)
852 "\n"))
853 (when pending-merge
854 (concat
855 (propertize "Warning : " 'face 'font-lock-warning-face
856 'help-echo pending-merge-help-echo)
857 (propertize "Pending merges, commit recommended before any other action"
858 'help-echo pending-merge-help-echo
859 'face 'font-lock-warning-face)
860 "\n"))
861 (if shelve
862 (concat
863 (propertize "Shelves :\n" 'face 'font-lock-type-face
864 'help-echo shelve-help-echo)
865 (mapconcat
866 (lambda (x)
867 (propertize x
868 'face 'font-lock-variable-name-face
869 'mouse-face 'highlight
870 'help-echo "mouse-3: Show shelve menu\nA: Apply and keep shelf\nP: Apply and remove shelf (pop)\nS: Snapshot to a shelf\nC-k: Delete shelf"
871 'keymap vc-bzr-shelve-map))
872 shelve "\n"))
873 (concat
874 (propertize "Shelves : " 'face 'font-lock-type-face
875 'help-echo shelve-help-echo)
876 (propertize "No shelved changes"
877 'help-echo shelve-help-echo
878 'face 'font-lock-variable-name-face))))))
880 (defun vc-bzr-shelve (name)
881 "Create a shelve."
882 (interactive "sShelf name: ")
883 (let ((root (vc-bzr-root default-directory)))
884 (when root
885 (vc-bzr-command "shelve" nil 0 nil "--all" "-m" name)
886 (vc-resynch-buffer root t t))))
888 (defun vc-bzr-shelve-show (name)
889 "Show the contents of shelve NAME."
890 (interactive "sShelve name: ")
891 (vc-setup-buffer "*vc-diff*")
892 ;; FIXME: how can you show the contents of a shelf?
893 (vc-bzr-command "unshelve" "*vc-diff*" 'async nil "--preview" name)
894 (set-buffer "*vc-diff*")
895 (diff-mode)
896 (setq buffer-read-only t)
897 (pop-to-buffer (current-buffer)))
899 (defun vc-bzr-shelve-apply (name)
900 "Apply shelve NAME and remove it afterwards."
901 (interactive "sApply (and remove) shelf: ")
902 (vc-bzr-command "unshelve" nil 0 nil "--apply" name)
903 (vc-resynch-buffer (vc-bzr-root default-directory) t t))
905 (defun vc-bzr-shelve-apply-and-keep (name)
906 "Apply shelve NAME and keep it afterwards."
907 (interactive "sApply (and keep) shelf: ")
908 (vc-bzr-command "unshelve" nil 0 nil "--apply" "--keep" name)
909 (vc-resynch-buffer (vc-bzr-root default-directory) t t))
911 (defun vc-bzr-shelve-snapshot ()
912 "Create a stash with the current tree state."
913 (interactive)
914 (vc-bzr-command "shelve" nil 0 nil "--all" "-m"
915 (let ((ct (current-time)))
916 (concat
917 (format-time-string "Snapshot on %Y-%m-%d" ct)
918 (format-time-string " at %H:%M" ct))))
919 (vc-bzr-command "unshelve" nil 0 nil "--apply" "--keep")
920 (vc-resynch-buffer (vc-bzr-root default-directory) t t))
922 (defun vc-bzr-shelve-list ()
923 (with-temp-buffer
924 (vc-bzr-command "shelve" (current-buffer) 1 nil "--list" "-q")
925 (delete
927 (split-string
928 (buffer-substring (point-min) (point-max))
929 "\n"))))
931 (defun vc-bzr-shelve-get-at-point (point)
932 (save-excursion
933 (goto-char point)
934 (beginning-of-line)
935 (if (looking-at "^ +\\([0-9]+\\):")
936 (match-string 1)
937 (error "Cannot find shelf at point"))))
939 (defun vc-bzr-shelve-delete-at-point ()
940 (interactive)
941 (let ((shelve (vc-bzr-shelve-get-at-point (point))))
942 (when (y-or-n-p (format "Remove shelf %s ?" shelve))
943 (vc-bzr-command "unshelve" nil 0 nil "--delete-only" shelve)
944 (vc-dir-refresh))))
946 (defun vc-bzr-shelve-show-at-point ()
947 (interactive)
948 (vc-bzr-shelve-show (vc-bzr-shelve-get-at-point (point))))
950 (defun vc-bzr-shelve-apply-at-point ()
951 (interactive)
952 (vc-bzr-shelve-apply (vc-bzr-shelve-get-at-point (point))))
954 (defun vc-bzr-shelve-apply-and-keep-at-point ()
955 (interactive)
956 (vc-bzr-shelve-apply-and-keep (vc-bzr-shelve-get-at-point (point))))
958 (defun vc-bzr-shelve-menu (e)
959 (interactive "e")
960 (vc-dir-at-event e (popup-menu vc-bzr-shelve-menu-map e)))
962 (defun vc-bzr-revision-table (files)
963 (let ((vc-bzr-revisions '())
964 (default-directory (file-name-directory (car files))))
965 (with-temp-buffer
966 (vc-bzr-command "log" t 0 files "--line")
967 (let ((start (point-min))
968 (loglines (buffer-substring-no-properties (point-min) (point-max))))
969 (while (string-match "^\\([0-9]+\\):" loglines)
970 (push (match-string 1 loglines) vc-bzr-revisions)
971 (setq start (+ start (match-end 0)))
972 (setq loglines (buffer-substring-no-properties start (point-max))))))
973 vc-bzr-revisions))
975 (defun vc-bzr-conflicted-files (dir)
976 (let ((default-directory (vc-bzr-root dir))
977 (files ()))
978 (with-temp-buffer
979 (vc-bzr-command "status" t 0 default-directory)
980 (goto-char (point-min))
981 (when (re-search-forward "^conflicts:\n" nil t)
982 (while (looking-at " \\(?:Text conflict in \\(.*\\)\\|.*\\)\n")
983 (if (match-end 1)
984 (push (expand-file-name (match-string 1)) files))
985 (goto-char (match-end 0)))))
986 files))
988 ;;; Revision completion
990 (eval-and-compile
991 (defconst vc-bzr-revision-keywords
992 '("revno" "revid" "last" "before"
993 "tag" "date" "ancestor" "branch" "submit")))
995 (defun vc-bzr-revision-completion-table (files)
996 (lexical-let ((files files))
997 ;; What about using `files'?!? --Stef
998 (lambda (string pred action)
999 (cond
1000 ((string-match "\\`\\(ancestor\\|branch\\|\\(revno:\\)?[-0-9]+:\\):"
1001 string)
1002 (completion-table-with-context (substring string 0 (match-end 0))
1003 (apply-partially
1004 'completion-table-with-predicate
1005 'completion-file-name-table
1006 'file-directory-p t)
1007 (substring string (match-end 0))
1008 pred
1009 action))
1010 ((string-match "\\`\\(before\\):" string)
1011 (completion-table-with-context (substring string 0 (match-end 0))
1012 (vc-bzr-revision-completion-table files)
1013 (substring string (match-end 0))
1014 pred
1015 action))
1016 ((string-match "\\`\\(tag\\):" string)
1017 (let ((prefix (substring string 0 (match-end 0)))
1018 (tag (substring string (match-end 0)))
1019 (table nil)
1020 process-file-side-effects)
1021 (with-temp-buffer
1022 ;; "bzr-1.2 tags" is much faster with --show-ids.
1023 (process-file vc-bzr-program nil '(t) nil "tags" "--show-ids")
1024 ;; The output is ambiguous, unless we assume that revids do not
1025 ;; contain spaces.
1026 (goto-char (point-min))
1027 (while (re-search-forward "^\\(.*[^ \n]\\) +[^ \n]*$" nil t)
1028 (push (match-string-no-properties 1) table)))
1029 (completion-table-with-context prefix table tag pred action)))
1031 ((string-match "\\`\\([a-z]+\\):" string)
1032 ;; no actual completion for the remaining keywords.
1033 (completion-table-with-context (substring string 0 (match-end 0))
1034 (if (member (match-string 1 string)
1035 vc-bzr-revision-keywords)
1036 ;; If it's a valid keyword,
1037 ;; use a non-empty table to
1038 ;; indicate it.
1039 '("") nil)
1040 (substring string (match-end 0))
1041 pred
1042 action))
1044 ;; Could use completion-table-with-terminator, except that it
1045 ;; currently doesn't work right w.r.t pcm and doesn't give
1046 ;; the *Completions* output we want.
1047 (complete-with-action action (eval-when-compile
1048 (mapcar (lambda (s) (concat s ":"))
1049 vc-bzr-revision-keywords))
1050 string pred))))))
1052 (eval-after-load "vc"
1053 '(add-to-list 'vc-directory-exclusion-list vc-bzr-admin-dirname t))
1055 (provide 'vc-bzr)
1056 ;; arch-tag: 8101bad8-4e92-4e7d-85ae-d8e08b4e7c06
1057 ;;; vc-bzr.el ends here