Mercurial > hg > xemacs-beta
diff lisp/packages/vc.el @ 151:59463afc5666 r20-3b2
Import from CVS: tag r20-3b2
| author | cvs |
|---|---|
| date | Mon, 13 Aug 2007 09:37:19 +0200 |
| parents | 318232e2a3f0 |
| children | 25f70ba0133c |
line wrap: on
line diff
--- a/lisp/packages/vc.el Mon Aug 13 09:36:20 2007 +0200 +++ b/lisp/packages/vc.el Mon Aug 13 09:37:19 2007 +0200 @@ -1,33 +1,28 @@ ;;; vc.el --- drive a version-control system from within Emacs -;; Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. -;; Copyright (C) 1995 Tinker Systems and INS Engineering Corp. +;; Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc. -;; Author: Eric S. Raymond <esr@snark.thyrsus.com> -;; Maintainer: ttn@netcom.com -;; Version: 5.6 +;; Author: Eric S. Raymond <esr@snark.thyrsus.com> +;; Maintainer: Andre Spiegel <spiegel@inf.fu-berlin.de> +;; XEmacs conversion: Steve Baur <steve@altair.xemacs.org> -;; This file is part of XEmacs. +;; This file is part of GNU Emacs. -;; XEmacs is free software; you can redistribute it and/or modify it -;; under the terms of the GNU General Public License as published by +;; GNU Emacs is free software; you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by ;; the Free Software Foundation; either version 2, or (at your option) ;; any later version. -;; XEmacs is distributed in the hope that it will be useful, but -;; WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -;; General Public License for more details. +;; GNU Emacs is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. ;; You should have received a copy of the GNU General Public License -;; along with XEmacs; see the file COPYING. If not, write to the +;; along with GNU Emacs; see the file COPYING. If not, write to the ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, ;; Boston, MA 02111-1307, USA. -;;; Synched up with: It's not clear at this point. -;;; mly synched this with FSF at version 5.4. Stig did a whole lot -;;; of stuff to it since then, and so has the FSF. - ;;; Commentary: ;; This mode is fully documented in the Emacs user's manual. @@ -36,20 +31,21 @@ ;; Paul Eggert <eggert@twinsun.com>, Sebastian Kremer <sk@thp.uni-koeln.de>, ;; and Richard Stallman contributed valuable criticism, support, and testing. ;; CVS support was added by Per Cederqvist <ceder@lysator.liu.se> -;; in Jan-Feb 1994. -;; -;; XEmacs fixes, CVS fixes, and general improvements -;; by Jonathan Stigelman <Stig@hackvan.com> +;; in Jan-Feb 1994. Further enhancements came from ttn.netcom.com and +;; Andre Spiegel <spiegel@inf.fu-berlin.de>. ;; ;; Supported version-control systems presently include SCCS, RCS, and CVS. -;; The RCS lock-stealing code doesn't work right unless you use RCS 5.6.2 -;; or newer. Currently (January 1994) that is only a beta test release. +;; +;; Some features will not work with old RCS versions. Where +;; appropriate, VC finds out which version you have, and allows or +;; disallows those features (stealing locks, for example, works only +;; from 5.6.2 onwards). ;; Even initial checkins will fail if your RCS version is so old that ci ;; doesn't understand -t-; this has been known to happen to people running ;; NExTSTEP 3.0. ;; -;; The RCS code assumes strict locking. You can support the RCS -x option -;; by adding pairs to the vc-master-templates list. +;; You can support the RCS -x option by adding pairs to the +;; vc-master-templates list. ;; ;; Proper function of the SCCS diff commands requires the shellscript vcdiff ;; to be installed somewhere on Emacs's path for executables. @@ -75,67 +71,77 @@ (require 'vc-hooks) (require 'ring) -(eval-when-compile (require 'dired)) ; for dired-map-over-marks macro +(eval-when-compile (require 'dired)) ; for dired-map-over-marks macro (if (not (assoc 'vc-parent-buffer minor-mode-alist)) (setq minor-mode-alist (cons '(vc-parent-buffer vc-parent-buffer-name) minor-mode-alist))) +;; To implement support for a new version-control system, add another +;; branch to the vc-backend-dispatch macro and fill it in in each +;; call. The variable vc-master-templates in vc-hooks.el will also +;; have to change. + +(defmacro vc-backend-dispatch (f s r c) + "Execute FORM1, FORM2 or FORM3 for SCCS, RCS or CVS respectively. +If FORM3 is `RCS', use FORM2 for CVS as well as RCS. +\(CVS shares some code with RCS)." + (list 'let (list (list 'type (list 'vc-backend f))) + (list 'cond + (list (list 'eq 'type (quote 'SCCS)) s) ;; SCCS + (list (list 'eq 'type (quote 'RCS)) r) ;; RCS + (list (list 'eq 'type (quote 'CVS)) ;; CVS + (if (eq c 'RCS) r c)) + ))) + ;; General customization -(defvar vc-default-back-end nil - "*Back-end actually used by this interface; may be SCCS or RCS. -The value is only computed when needed to avoid an expensive search.") (defvar vc-suppress-confirm nil "*If non-nil, treat user as expert; suppress yes-no prompts on some things.") -(defvar vc-keep-workfiles t - "*If non-nil, don't delete working files after registering changes. -If the back-end is CVS, workfiles are always kept, regardless of the -value of this flag.") (defvar vc-initial-comment nil - "*Prompt for initial comment when a file is registered.") + "*If non-nil, prompt for initial comment when a file is registered.") (defvar vc-command-messages nil - "*Display run messages from back-end commands.") -(defvar vc-mistrust-permissions 'file-symlink-p - "*Don't assume that permissions and ownership track version-control status.") + "*If non-nil, display run messages from back-end commands.") +(defvar vc-register-switches nil + "*A string or list of strings specifying extra switches passed +to the register program by \\[vc-register].") (defvar vc-checkin-switches nil - "*Extra switches passed to the checkin program by \\[vc-checkin].") + "*A string or list of strings specifying extra switches passed +to the checkin program by \\[vc-checkin].") (defvar vc-checkout-switches nil - "*Extra switches passed to the checkout program by \\[vc-checkout].") -(defvar vc-path - (if (file-exists-p "/usr/sccs") - '("/usr/sccs") nil) - "*List of extra directories to search for version control commands.") -(defvar vc-directory-exclusion-list '("SCCS" "RCS") - "*Directory names ignored by functions that recursively walk file trees.") + "*A string or list of strings specifying extra switches passed +to the checkout program by \\[vc-checkout].") +(defvar vc-directory-exclusion-list '("SCCS" "RCS" "CVS") + "*A list of directory names ignored by functions that recursively +walk file trees.") (defconst vc-maximum-comment-ring-size 32 "Maximum number of saved comments in the comment ring.") -;;; XEmacs - This is dumped into loaddefs.el already. -;(defvar diff-switches "-c" -; "*A string or list of strings specifying switches to be passed to diff.") +;;; This is duplicated in diff.el. +;;; XEmacs: remove +;;(defvar diff-switches "-c" +;; "*A string or list of strings specifying switches to be be passed to diff.") + +;;;###autoload +(defvar vc-before-checkin-hook nil + "*Normal hook (list of functions) run before a file gets checked in. +See `run-hooks'.") ;;;###autoload (defvar vc-checkin-hook nil - "*List of functions called after a checkin is done. See `run-hooks'.") - -;;;###autoload -(defvar vc-before-checkin-hook nil - "*List of functions called before a checkin is done. See `run-hooks'.") - -(defvar vc-make-buffer-writable-hook nil - "*List of functions called when a buffer is made writable. See `run-hooks.' -This hook is only used when the version control system is CVS. It -might be useful for sites who uses locking with CVS, or who uses link -farms to gold trees.") + "*Normal hook (List of functions) run after a checkin is done. +See `run-hooks'.") ;; Header-insertion hair (defvar vc-header-alist '((SCCS "\%W\%") (RCS "\$Id\$") (CVS "\$Id\$")) - "*Header keywords to be inserted when `vc-insert-headers' is executed.") + "*Header keywords to be inserted by `vc-insert-headers'. +Must be a list of two-element lists, the first element of each must +be `RCS', `CVS', or `SCCS'. The second element is the string to +be inserted for this particular backend.") (defvar vc-static-header-alist '(("\\.c$" . "\n#ifndef lint\nstatic char vcid[] = \"\%s\";\n#endif /* lint */\n")) @@ -151,11 +157,23 @@ is sensitive to blank lines.") ;; Default is to be extra careful for super-user. -(defvar vc-checkout-carefully (= (user-uid) 0) ; #### - this prevents preloading! +(defvar vc-checkout-carefully (= (user-uid) 0) "*Non-nil means be extra-careful in checkout. Verify that the file really is not locked and that its contents match what the master file says.") +(defvar vc-rcs-release nil + "*The release number of your RCS installation, as a string. +If nil, VC itself computes this value when it is first needed.") + +(defvar vc-sccs-release nil + "*The release number of your SCCS installation, as a string. +If nil, VC itself computes this value when it is first needed.") + +(defvar vc-cvs-release nil + "*The release number of your CVS installation, as a string. +If nil, VC itself computes this value when it is first needed.") + ;; Variables the user doesn't need to know about. (defvar vc-log-entry-mode nil) (defvar vc-log-operation nil) @@ -175,15 +193,106 @@ (defvar vc-dired-mode nil) (make-variable-buffer-local 'vc-dired-mode) -(defvar vc-comment-ring nil) +(defvar vc-comment-ring (make-ring vc-maximum-comment-ring-size)) (defvar vc-comment-ring-index nil) (defvar vc-last-comment-match nil) -;; File property caching +;; Back-portability to Emacs 18 + +(defun file-executable-p-18 (f) + (let ((modes (file-modes f))) + (and modes (not (zerop (logand 292)))))) + +(defun file-regular-p-18 (f) + (let ((attributes (file-attributes f))) + (and attributes (not (car attributes))))) + +; Conditionally rebind some things for Emacs 18 compatibility +(if (not (boundp 'minor-mode-map-alist)) + (progn + (setq compilation-old-error-list nil) + (fset 'file-executable-p 'file-executable-p-18) + (fset 'shrink-window-if-larger-than-buffer 'beginning-of-buffer) + )) + +(if (not (fboundp 'file-regular-p)) + (fset 'file-regular-p 'file-regular-p-18)) + +;;; Find and compare backend releases + +(defun vc-backend-release (backend) + ;; Returns which backend release is installed on this system. + (cond + ((eq backend 'RCS) + (or vc-rcs-release + (and (zerop (vc-do-command nil nil "rcs" nil nil "-V")) + (save-excursion + (set-buffer (get-buffer "*vc*")) + (setq vc-rcs-release + (car (vc-parse-buffer + '(("^RCS version \\([0-9.]+ *.*\\)" 1))))))) + (setq vc-rcs-release 'unknown))) + ((eq backend 'CVS) + (or vc-cvs-release + (and (zerop (vc-do-command nil 1 "cvs" nil nil "-v")) + (save-excursion + (set-buffer (get-buffer "*vc*")) + (setq vc-cvs-release + (car (vc-parse-buffer + '(("^Concurrent Versions System (CVS) \\([0-9.]+\\)" + 1))))))) + (setq vc-cvs-release 'unknown))) + ((eq backend 'SCCS) + vc-sccs-release))) -(defun vc-file-clearprops (file) - ;; clear all properties of a given file - (setplist (intern file vc-file-prop-obarray) nil)) +(defun vc-release-greater-or-equal (r1 r2) + ;; Compare release numbers, represented as strings. + ;; Release components are assumed cardinal numbers, not decimal + ;; fractions (5.10 is a higher release than 5.9). Omitted fields + ;; are considered lower (5.6.7 is earlier than 5.6.7.1). + ;; Comparison runs till the end of the string is found, or a + ;; non-numeric component shows up (5.6.7 is earlier than "5.6.7 beta", + ;; which is probably not what you want in some cases). + ;; This code is suitable for existing RCS release numbers. + ;; CVS releases are handled reasonably, too (1.3 < 1.4* < 1.5). + (let (v1 v2 i1 i2) + (catch 'done + (or (and (string-match "^\\.?\\([0-9]+\\)" r1) + (setq i1 (match-end 0)) + (setq v1 (string-to-number (match-string 1 r1))) + (or (and (string-match "^\\.?\\([0-9]+\\)" r2) + (setq i2 (match-end 0)) + (setq v2 (string-to-number (match-string 1 r2))) + (if (> v1 v2) (throw 'done t) + (if (< v1 v2) (throw 'done nil) + (throw 'done + (vc-release-greater-or-equal + (substring r1 i1) + (substring r2 i2))))))) + (throw 'done t))) + (or (and (string-match "^\\.?\\([0-9]+\\)" r2) + (throw 'done nil)) + (throw 'done t))))) + +(defun vc-backend-release-p (backend release) + ;; Return t if we have RELEASE of BACKEND or better + (let (i r (ri 0) (ii 0) is rs (installation (vc-backend-release backend))) + (if (not (eq installation 'unknown)) + (cond + ((or (eq backend 'RCS) (eq backend 'CVS)) + (vc-release-greater-or-equal installation release)))))) + +;;; functions that operate on RCS revision numbers + +(defun vc-trunk-p (rev) + ;; return t if REV is a revision on the trunk + (not (eq nil (string-match "\\`[0-9]+\\.[0-9]+\\'" rev)))) + +(defun vc-branch-part (rev) + ;; return the branch part of a revision number REV + (substring rev 0 (string-match "\\.[0-9]+\\'" rev))) + +;; File property caching (defun vc-clear-context () "Clear all cached file properties and the comment ring." @@ -191,10 +300,63 @@ (fillarray vc-file-prop-obarray nil) ;; Note: there is potential for minor lossage here if there is an open ;; log buffer with a nonzero local value of vc-comment-ring-index. - (setq vc-comment-ring nil)) + (setq vc-comment-ring (make-ring vc-maximum-comment-ring-size))) + +(defun vc-file-clear-masterprops (file) + ;; clear all properties of FILE that were retrieved + ;; from the master file + (vc-file-setprop file 'vc-latest-version nil) + (vc-file-setprop file 'vc-your-latest-version nil) + (vc-backend-dispatch file + (progn ;; SCCS + (vc-file-setprop file 'vc-master-locks nil)) + (progn ;; RCS + (vc-file-setprop file 'vc-default-branch nil) + (vc-file-setprop file 'vc-head-version nil) + (vc-file-setprop file 'vc-master-workfile-version nil) + (vc-file-setprop file 'vc-master-locks nil)) + (progn + (vc-file-setprop file 'vc-cvs-status nil)))) + +(defun vc-head-version (file) + ;; Return the RCS head version of FILE + (cond ((vc-file-getprop file 'vc-head-version)) + (t (vc-fetch-master-properties file) + (vc-file-getprop file 'vc-head-version)))) ;; Random helper functions +(defun vc-latest-on-branch-p (file) + ;; return t iff the current workfile version of FILE is + ;; the latest on its branch. + (vc-backend-dispatch file + ;; SCCS + (string= (vc-workfile-version file) (vc-latest-version file)) + ;; RCS + (let ((workfile-version (vc-workfile-version file)) tip-version) + (if (vc-trunk-p workfile-version) + (progn + ;; Re-fetch the head version number. This is to make + ;; sure that no-one has checked in a new version behind + ;; our back. + (vc-fetch-master-properties file) + (string= (vc-file-getprop file 'vc-head-version) + workfile-version)) + ;; If we are not on the trunk, we need to examine the + ;; whole current branch. (vc-master-workfile-version + ;; is not what we need.) + (save-excursion + (set-buffer (get-buffer-create "*vc-info*")) + (vc-insert-file (vc-name file) "^desc") + (setq tip-version (car (vc-parse-buffer (list (list + (concat "^\\(" (regexp-quote (vc-branch-part workfile-version)) + "\\.[0-9]+\\)\ndate[ \t]+\\([0-9.]+\\);") 1 2))))) + (if (get-buffer "*vc-info*") + (kill-buffer (get-buffer "*vc-info*"))) + (string= tip-version workfile-version)))) + ;; CVS + t)) + (defun vc-registration-error (file) (if file (error "File %s is not under version control" file) @@ -202,44 +364,47 @@ (defvar vc-binary-assoc nil) +;; XEmacs: Function referred to in vc-hooks.el +;;;###autoload (defun vc-find-binary (name) "Look for a command anywhere on the subprocess-command search path." (or (cdr (assoc name vc-binary-assoc)) - ;; XEmacs - use locate-file - (let ((full (locate-file name exec-path nil 1))) - (if full - (setq vc-binary-assoc (cons (cons name full) vc-binary-assoc))) - full))) + (catch 'found + (mapcar + (function + (lambda (s) + (if s + (let ((full (concat s "/" name))) + (if (file-executable-p full) + (progn + (setq vc-binary-assoc + (cons (cons name full) vc-binary-assoc)) + (throw 'found full))))))) + exec-path) + nil))) -(defun vc-do-command (okstatus command file last &rest flags) +(defun vc-do-command (buffer okstatus command file last &rest flags) "Execute a version-control command, notifying user and checking for errors. +Output from COMMAND goes to BUFFER, or *vc* if BUFFER is nil. The command is successful if its exit status does not exceed OKSTATUS. -Output from COMMAND goes to buffer *vc*. The last argument of the command is -the master name of FILE if LAST is 'MASTER, or the workfile of FILE if LAST is -'WORKFILE; this is appended to an optional list of FLAGS." - (setq file (expand-file-name file)) - (let ((camefrom (current-buffer)) - (pwd (file-name-directory (expand-file-name file))) + (If OKSTATUS is nil, that means to ignore errors.) +The last argument of the command is the master name of FILE if LAST is +`MASTER', or the workfile of FILE if LAST is `WORKFILE'; this is appended +to an optional list of FLAGS." + (and file (setq file (expand-file-name file))) + (if (not buffer) (setq buffer "*vc*")) + (if vc-command-messages + (message "Running %s on %s..." command file)) + (let ((obuf (current-buffer)) (camefrom (current-buffer)) (squeezed nil) (vc-file (and file (vc-name file))) + (olddir default-directory) status) -;;; #### - don't know why this code was here...to beautify the echo message? -;;; the version of code below doesn't break default-directory, but it -;;; still might mess up CVS and RCS because they like to operate on -;;; files in the current directory. --Stig -;;; -;;; (if (string-match (concat "^" (regexp-quote pwd)) file) -;;; (setq file (substring file (match-end 0))) -;;; (setq pwd (file-name-directory file))) - (if vc-command-messages - (message "Running %s on %s..." command file)) - (set-buffer (get-buffer-create "*vc*")) - (setq default-directory pwd - file (file-name-nondirectory file)) - + (set-buffer (get-buffer-create buffer)) (set (make-local-variable 'vc-parent-buffer) camefrom) (set (make-local-variable 'vc-parent-buffer-name) (concat " from " (buffer-name camefrom))) + (setq default-directory olddir) (erase-buffer) @@ -249,18 +414,27 @@ (if (and vc-file (eq last 'MASTER)) (setq squeezed (append squeezed (list vc-file)))) (if (eq last 'WORKFILE) - (setq squeezed (append squeezed (list file)))) - (let ((exec-path (if vc-path (append vc-path exec-path) exec-path)) + (progn + (let* ((pwd (expand-file-name default-directory)) + (preflen (length pwd))) + (if (string= (substring file 0 preflen) pwd) + (setq file (substring file preflen)))) + (setq squeezed (append squeezed (list file))))) + (let ((exec-path (append vc-path exec-path)) ;; Add vc-path to PATH for the execution of this command. - (process-environment (copy-sequence process-environment))) - (setenv "PATH" (mapconcat 'identity exec-path ":")) + (process-environment + (cons (concat "PATH=" (getenv "PATH") + path-separator + (mapconcat 'identity vc-path path-separator)) + process-environment)) + (w32-quote-process-args t)) (setq status (apply 'call-process command nil t nil squeezed))) (goto-char (point-max)) - (set-buffer-modified-p nil) ; XEmacs - fsf uses `not-modified' + (set-buffer-modified-p nil) (forward-line -1) - (if (or (not (integerp status)) (< okstatus status)) + (if (or (not (integerp status)) (and okstatus (< okstatus status))) (progn - (pop-to-buffer "*vc*") + (pop-to-buffer buffer) (goto-char (point-min)) (shrink-window-if-larger-than-buffer) (error "Running %s...FAILED (%s)" command @@ -271,13 +445,14 @@ (if vc-command-messages (message "Running %s...OK" command)) ) - (set-buffer camefrom) + (set-buffer obuf) status) ) ;;; Save a bit of the text around POSN in the current buffer, to help ;;; us find the corresponding position again later. This works even ;;; if all markers are destroyed or corrupted. +;;; A lot of this was shamelessly lifted from Sebastian Kremer's rcs.el mode. (defun vc-position-context (posn) (list posn (buffer-size) @@ -304,51 +479,48 @@ ;; to beginning of OSTRING (- (point) (length context-string)))))))) -(defun vc-revert-buffer1 (&optional arg no-confirm) - ;; Most of this was shamelessly lifted from Sebastian Kremer's rcs.el mode. - ;; Revert buffer, try to keep point and mark where user expects them in spite - ;; of changes because of expanded version-control key words. - ;; This is quite important since otherwise typeahead won't work as expected. - (interactive "P") - (widen) +(defun vc-buffer-context () + ;; Return a list '(point-context mark-context reparse); from which + ;; vc-restore-buffer-context can later restore the context. (let ((point-context (vc-position-context (point))) ;; Use mark-marker to avoid confusion in transient-mark-mode. - ;; XEmacs - mark-marker t - (mark-context (if (eq (marker-buffer (mark-marker t)) (current-buffer)) - (vc-position-context (mark-marker t)))) + (mark-context (if (eq (marker-buffer (mark-marker #+xemacs t)) + (current-buffer)) + (vc-position-context (mark-marker #+xemacs t)))) + ;; Make the right thing happen in transient-mark-mode. + (mark-active nil) ;; We may want to reparse the compilation buffer after revert (reparse (and (boundp 'compilation-error-list) ;compile loaded - ;; Construct a list; each elt is nil or a buffer - ;; iff that buffer is a compilation output buffer - ;; that contains markers into the current buffer. - (save-excursion - (mapcar (function - (lambda (buffer) - (set-buffer buffer) - (let ((errors (or - compilation-old-error-list - compilation-error-list)) - (buffer-error-marked-p nil)) - (while (and (consp errors) - (not buffer-error-marked-p)) - (and (markerp (cdr (car errors))) - (eq buffer - (marker-buffer - (cdr (car errors)))) - (setq buffer-error-marked-p t)) - (setq errors (cdr errors))) - (if buffer-error-marked-p buffer)))) - (buffer-list)))))) + (let ((curbuf (current-buffer))) + ;; Construct a list; each elt is nil or a buffer + ;; iff that buffer is a compilation output buffer + ;; that contains markers into the current buffer. + (save-excursion + (mapcar (function + (lambda (buffer) + (set-buffer buffer) + (let ((errors (or + compilation-old-error-list + compilation-error-list)) + (buffer-error-marked-p nil)) + (while (and (consp errors) + (not buffer-error-marked-p)) + (and (markerp (cdr (car errors))) + (eq buffer + (marker-buffer + (cdr (car errors)))) + (setq buffer-error-marked-p t)) + (setq errors (cdr errors))) + (if buffer-error-marked-p buffer)))) + (buffer-list))))))) + (list point-context mark-context reparse))) - ;; The FSF version intentionally runs font-lock here. That - ;; usually just leads to a correctly font-locked buffer being - ;; redone. #### We should detect the cases where the font-locking - ;; may be incorrect (such as on reverts). We know that it is fine - ;; during regular checkin and checkouts. - - ;; the actual revisit - (revert-buffer arg no-confirm) - +(defun vc-restore-buffer-context (context) + ;; Restore point/mark, and reparse any affected compilation buffers. + ;; CONTEXT is that which vc-buffer-context returns. + (let ((point-context (nth 0 context)) + (mark-context (nth 1 context)) + (reparse (nth 2 context))) ;; Reparse affected compilation buffers. (while reparse (if (car reparse) @@ -375,6 +547,17 @@ (let ((new-mark (vc-find-position-by-context mark-context))) (if new-mark (set-mark new-mark)))))) +(defun vc-revert-buffer1 (&optional arg no-confirm) + ;; Revert buffer, try to keep point and mark where user expects them in spite + ;; of changes because of expanded version-control key words. + ;; This is quite important since otherwise typeahead won't work as expected. + (interactive "P") + (widen) + (let ((context (vc-buffer-context))) + ;; t means don't call normal-mode; that's to preserve various minor modes. + (revert-buffer arg no-confirm t) + (vc-restore-buffer-context context))) + (defun vc-buffer-sync (&optional not-urgent) ;; Make sure the current buffer and its working file are in sync @@ -387,132 +570,56 @@ nil (error "Aborted"))))) -;;;###autoload -(defun vc-file-status () - "Display the current status of the file being visited. -Currently, this is only defined for CVS. The information provided in the -modeline is generally sufficient for RCS and SCCS." - ;; by Stig@hackvan.com - (interactive) - (vc-buffer-sync t) - (let ((type (vc-backend-deduce buffer-file-name)) - (file buffer-file-name)) - (cond ((null type) - (if buffer-file-name - (message "`%s' is not registered with a version control system." - buffer-file-name) - (ding) - (message "Buffer `%s' has no associated file." - (buffer-name (current-buffer))))) - ((eq 'CVS type) - (vc-do-command 0 "cvs" file 'WORKFILE "status" "-v") - (set-buffer "*vc*") - (set-buffer-modified-p nil) - ;; reparse the status information, since we have it handy... - (vc-parse-buffer '("Status: \\(.*\\)") file '(vc-cvs-status)) - (goto-char (point-min)) - (shrink-window-if-larger-than-buffer - (display-buffer (current-buffer)))) - ((eq 'CC type) - (vc-do-command 0 "cleartool" file 'WORKFILE "describe") - (set-buffer "*vc*") - (set-buffer-modified-p nil) - (goto-char (point-min)) - (shrink-window-if-larger-than-buffer - (display-buffer (current-buffer)))) - (t - (ding) - (message "Operation not yet defined for RCS or SCCS."))) - )) (defun vc-workfile-unchanged-p (file &optional want-differences-if-changed) ;; Has the given workfile changed since last checkout? - (cond ((and (eq 'CVS (vc-backend-deduce file)) - (not want-differences-if-changed)) - - (let ((status (vc-file-getprop file 'vc-cvs-status))) - ;; #### - should this have some kind of timeout? how often does - ;; this get called? possibly the cached information should be - ;; flushed out of hand. The only concern is the VC menu, which - ;; may indirectly call this function. - (or status ; #### - caching is error-prone - (setq status (car (vc-log-info "cvs" file 'WORKFILE '("status") - '("Status: \\(.*\\)") - '(vc-cvs-status))))) - (string= status "Up-to-date"))) - (t - (let ((checkout-time (vc-file-getprop file 'vc-checkout-time)) - (lastmod (nth 5 (file-attributes file))) - unchanged) - (or (equal checkout-time lastmod) - (and (or (not checkout-time) want-differences-if-changed) - (setq unchanged - (zerop (vc-backend-diff file nil nil - (not want-differences-if-changed)))) - ;; 0 stands for an unknown time; it can't match any mod time. - (vc-file-setprop file 'vc-checkout-time (if unchanged lastmod 0)) - unchanged)))))) + (let ((checkout-time (vc-file-getprop file 'vc-checkout-time)) + (lastmod (nth 5 (file-attributes file)))) + (or (equal checkout-time lastmod) + (and (or (not checkout-time) want-differences-if-changed) + (let ((unchanged (zerop (vc-backend-diff file nil nil + (not want-differences-if-changed))))) + ;; 0 stands for an unknown time; it can't match any mod time. + (vc-file-setprop file 'vc-checkout-time (if unchanged lastmod 0)) + unchanged))))) (defun vc-next-action-on-file (file verbose &optional comment) ;;; If comment is specified, it will be used as an admin or checkin comment. (let ((vc-file (vc-name file)) - (vc-type (vc-backend-deduce file)) - owner version) + (vc-type (vc-backend file)) + owner version buffer) (cond ;; if there is no master file corresponding, create one ((not vc-file) - (vc-register verbose comment)) - - ;; if there is no lock on the file, assert one and get it - ((and (not (eq vc-type 'CVS)) ;There are no locks in CVS. - (not (setq owner (vc-locking-user file)))) - (if (and vc-checkout-carefully - (not (vc-workfile-unchanged-p file t))) - (if (save-window-excursion - (pop-to-buffer "*vc*") - (goto-char (point-min)) - (insert (format "Changes to %s since last lock:\n\n" file)) - (not (beep)) - (yes-or-no-p - "File has unlocked changes, claim lock retaining changes? ")) - (progn (vc-backend-steal file) - (vc-mode-line file)) - (if (not (yes-or-no-p "Revert to checked-in version, instead? ")) - (error "Checkout aborted.") - (vc-revert-buffer1 t t) - (vc-checkout-writable-buffer file)) - ) + (vc-register verbose comment) + (if vc-initial-comment + (setq vc-log-after-operation-hook + 'vc-checkout-writable-buffer-hook) (vc-checkout-writable-buffer file))) - ;; a checked-out version exists, but the user may not own the lock - ((and (not (eq vc-type 'CVS)) ;There are no locks in CVS. - (not (string-equal owner (user-login-name)))) - (if comment - (error "Sorry, you can't steal the lock on %s this way" file)) - (vc-steal-lock - file - (and verbose (read-string "Version to steal: ")) - owner)) - - ;; changes to the master file needs to be merged back into the - ;; working file + ;; CVS: changes to the master file need to be + ;; merged back into the working file ((and (eq vc-type 'CVS) - ;; "0" means "added, but not yet committed" - (not (string= (vc-file-getprop file 'vc-your-latest-version) "0")) - (progn - (vc-fetch-properties file) - (not (string= (vc-file-getprop file 'vc-your-latest-version) - (vc-file-getprop file 'vc-latest-version))))) - (vc-buffer-sync) - (if (yes-or-no-p (format "%s is not up-to-date. Merge in changes now? " - (buffer-name))) + (or (eq (vc-cvs-status file) 'needs-checkout) + (eq (vc-cvs-status file) 'needs-merge))) + (if (or vc-dired-mode + (yes-or-no-p + (format "%s is not up-to-date. Merge in changes now? " + (buffer-name)))) (progn - (if (and (buffer-modified-p) + (if vc-dired-mode + (and (setq buffer (get-file-buffer file)) + (buffer-modified-p buffer) + (switch-to-buffer-other-window buffer) + (vc-buffer-sync t)) + (setq buffer (current-buffer)) + (vc-buffer-sync t)) + (if (and buffer (buffer-modified-p buffer) (not (yes-or-no-p (format "Buffer %s modified; merge file on disc anyhow? " - (buffer-name))))) + (buffer-name buffer))))) (error "Merge aborted")) (if (not (zerop (vc-backend-merge-news file))) ;; Overlaps detected - what now? Should use some @@ -520,65 +627,129 @@ ;; emerge, but for now, simply warn the user with a ;; message. (message "Conflicts detected!")) - (vc-resynch-window file t (not (buffer-modified-p)))) - + (and buffer + (vc-resynch-buffer file t (not (buffer-modified-p buffer))))) (error "%s needs update" (buffer-name)))) - ((and buffer-read-only (eq vc-type 'CVS)) - (toggle-read-only) - ;; Sites who make link farms to a read-only gold tree (or - ;; something similar) can use the hook below to break the - ;; sym-link. - (run-hooks 'vc-make-buffer-writable-hook)) - - ;; OK, user owns the lock on the file (or we are running CVS) - (t - (find-file file) - - ;; give luser a chance to save before checking in. - (vc-buffer-sync) + ;; If there is no lock on the file, assert one and get it. + ;; (With implicit checkout, make sure not to lose unsaved changes.) + ((progn (and (eq (vc-checkout-model file) 'implicit) + (buffer-modified-p buffer) + (vc-buffer-sync)) + (not (setq owner (vc-locking-user file)))) + (if (and vc-checkout-carefully + (not (vc-workfile-unchanged-p file t))) + (if (save-window-excursion + (pop-to-buffer "*vc-diff*") + (goto-char (point-min)) + (insert-string (format "Changes to %s since last lock:\n\n" + file)) + (not (beep)) + (yes-or-no-p + (concat "File has unlocked changes, " + "claim lock retaining changes? "))) + (progn (vc-backend-steal file) + (vc-mode-line file)) + (if (not (yes-or-no-p "Revert to checked-in version, instead? ")) + (error "Checkout aborted") + (vc-revert-buffer1 t t) + (vc-checkout-writable-buffer file)) + ) + (if verbose + (if (not (eq vc-type 'SCCS)) + (vc-checkout file nil + (read-string "Branch or version to move to: ")) + (error "Sorry, this is not implemented for SCCS")) + (if (vc-latest-on-branch-p file) + (vc-checkout-writable-buffer file) + (if (yes-or-no-p + "This is not the latest version. Really lock it? ") + (vc-checkout-writable-buffer file) + (if (yes-or-no-p "Lock the latest version instead? ") + (vc-checkout-writable-buffer file + (if (vc-trunk-p (vc-workfile-version file)) + "" ;; this means check out latest on trunk + (vc-branch-part (vc-workfile-version file))))))) + ))) - ;; Revert if file is unchanged and buffer is too. - ;; If buffer is modified, that means the user just said no - ;; to saving it; in that case, don't revert, - ;; because the user might intend to save - ;; after finishing the log entry. - (if (and (vc-workfile-unchanged-p file) - (not (buffer-modified-p))) - (progn - (if (eq vc-type 'CVS) - (message "No changes to %s" file) + ;; a checked-out version exists, but the user may not own the lock + ((and (not (eq vc-type 'CVS)) + (not (string-equal owner (vc-user-login-name)))) + (if comment + (error "Sorry, you can't steal the lock on %s this way" file)) + (and (eq vc-type 'RCS) + (not (vc-backend-release-p 'RCS "5.6.2")) + (error "File is locked by %s" owner)) + (vc-steal-lock + file + (if verbose (read-string "Version to steal: ") + (vc-workfile-version file)) + owner)) + + ;; OK, user owns the lock on the file + (t + (if vc-dired-mode + (find-file-other-window file) + (find-file file)) - (vc-backend-revert file) - ;; DO NOT revert the file without asking the user! - (vc-resynch-window file t nil))) + ;; give luser a chance to save before checking in. + (vc-buffer-sync) - ;; user may want to set nonstandard parameters - (if verbose - (setq version (read-string "New version level: "))) + ;; Revert if file is unchanged and buffer is too. + ;; If buffer is modified, that means the user just said no + ;; to saving it; in that case, don't revert, + ;; because the user might intend to save + ;; after finishing the log entry. + (if (and (vc-workfile-unchanged-p file) + (not (buffer-modified-p))) + ;; DO NOT revert the file without asking the user! + (cond + ((yes-or-no-p "Revert to master version? ") + (vc-backend-revert file) + (vc-resynch-window file t t))) - ;; OK, let's do the checkin - (vc-checkin file version comment) - ))))) + ;; user may want to set nonstandard parameters + (if verbose + (setq version (read-string "New version level: "))) + + ;; OK, let's do the checkin + (vc-checkin file version comment) + ))))) (defun vc-next-action-dired (file rev comment) - ;; We've accepted a log comment, now do a vc-next-action using it on all - ;; marked files. - (set-buffer vc-parent-buffer) - (dired-map-over-marks - (save-window-excursion - (let ((file (dired-get-filename))) + ;; Do a vc-next-action-on-file on all the marked files, possibly + ;; passing on the log comment we've just entered. + (let ((configuration (current-window-configuration)) + (dired-buffer (current-buffer)) + (dired-dir default-directory)) + (dired-map-over-marks + (let ((file (dired-get-filename)) p + (default-directory default-directory)) (message "Processing %s..." file) + ;; Adjust the default directory so that checkouts + ;; go to the right place. + (setq default-directory (file-name-directory file)) (vc-next-action-on-file file nil comment) - (message "Processing %s...done" file))) - nil t) - ) + (set-buffer dired-buffer) + (setq default-directory dired-dir) + (vc-dired-update-line file) + (set-window-configuration configuration) + (message "Processing %s...done" file)) + nil t))) ;; Here's the major entry point. ;;;###autoload (defun vc-next-action (verbose) "Do the next logical checkin or checkout operation on the current file. + If you call this from within a VC dired buffer with no files marked, +it will operate on the file in the current line. + If you call this from within a VC dired buffer, and one or more +files are marked, it will accept a log message and then operate on +each one. The log message will be used as a comment for any register +or checkin operations, but ignored when doing checkouts. Attempted +lock steals will raise an error. + A prefix argument lets you specify the version number to use. For RCS and SCCS files: If the file is not already registered, this registers it for version @@ -600,37 +771,31 @@ If the file is not already registered, this registers it for version control. This does a \"cvs add\", but no \"cvs commit\". If the file is added but not committed, it is committed. - If the file has not been changed, neither in your working area or -in the repository, a message is printed and nothing is done. If your working file is changed, but the repository file is unchanged, this pops up a buffer for entry of a log message; when the message has been entered, it checks in the resulting changes along with the logmessage as change commentary. A writable file is retained. If the repository file is changed, you are asked if you want to -merge in the changes into your working copy. - -The following is true regardless of which version control system you -are using: +merge in the changes into your working copy." - If you call this from within a VC dired buffer with no files marked, -it will operate on the file in the current line. - If you call this from within a VC dired buffer, and one or more -files are marked, it will accept a log message and then operate on -each one. The log message will be used as a comment for any register -or checkin operations, but ignored when doing checkouts. Attempted -lock steals will raise an error. - - For checkin, a prefix argument lets you specify the version number to use." (interactive "P") (catch 'nogo (if vc-dired-mode (let ((files (dired-get-marked-files))) - (if (= (length files) 1) - (find-file-other-window (car files)) - (vc-start-entry nil nil nil - "Enter a change comment for the marked files." - 'vc-next-action-dired) - (throw 'nogo nil)))) + (if (string= "" + (mapconcat + (function (lambda (f) + (if (eq (vc-backend f) 'CVS) + (if (or (eq (vc-cvs-status f) 'locally-modified) + (eq (vc-cvs-status f) 'locally-added)) + "@" "") + (if (vc-locking-user f) "@" "")))) + files "")) + (vc-next-action-dired nil nil "dummy") + (vc-start-entry nil nil nil + "Enter a change comment for the marked files." + 'vc-next-action-dired)) + (throw 'nogo nil))) (while vc-parent-buffer (pop-to-buffer vc-parent-buffer)) (if buffer-file-name @@ -639,15 +804,17 @@ ;;; These functions help the vc-next-action entry point -(defun vc-checkout-writable-buffer (&optional file) +(defun vc-checkout-writable-buffer (&optional file rev) "Retrieve a writable copy of the latest version of the current buffer's file." - (vc-checkout (or file (buffer-file-name)) t) + (vc-checkout (or file (buffer-file-name)) t rev) ) ;;;###autoload (defun vc-register (&optional override comment) "Register the current file into your version-control system." (interactive "P") + (or buffer-file-name + (error "No visited file")) (let ((master (vc-name buffer-file-name))) (and master (file-exists-p master) (error "This file is already registered")) @@ -661,6 +828,10 @@ (not (file-exists-p buffer-file-name))) (set-buffer-modified-p t)) (vc-buffer-sync) + (cond ((not vc-make-backup-files) + ;; inhibit backup for this buffer + (make-local-variable 'backup-inhibited) + (setq backup-inhibited t))) (vc-admin buffer-file-name (and override @@ -670,7 +841,7 @@ (defun vc-resynch-window (file &optional keep noquery) ;; If the given file is in the current buffer, - ;; either revert on it so we see expanded keyworks, + ;; either revert on it so we see expanded keywords, ;; or unvisit it (depending on vc-keep-workfiles) ;; NOQUERY if non-nil inhibits confirmation for reverting. ;; NOQUERY should be t *only* if it is known the only difference @@ -678,38 +849,47 @@ (and (string= buffer-file-name file) (if keep (progn + ;; temporarily remove vc-find-file-hook, so that + ;; we don't lose the properties + (remove-hook 'find-file-hooks 'vc-find-file-hook) (vc-revert-buffer1 t noquery) + (add-hook 'find-file-hooks 'vc-find-file-hook) (vc-mode-line buffer-file-name)) - (progn - (delete-window) - (kill-buffer (current-buffer)))))) + (kill-buffer (current-buffer))))) -(defun vc-start-entry (file rev comment msg action &optional after-hook before-hook) +(defun vc-resynch-buffer (file &optional keep noquery) + ;; if FILE is currently visited, resynch its buffer + (let ((buffer (get-file-buffer file))) + (if buffer + (save-excursion + (set-buffer buffer) + (vc-resynch-window file keep noquery))))) + +(defun vc-start-entry (file rev comment msg action &optional after-hook) ;; Accept a comment for an operation on FILE revision REV. If COMMENT ;; is nil, pop up a VC-log buffer, emit MSG, and set the ;; action on close to ACTION; otherwise, do action immediately. ;; Remember the file's buffer in vc-parent-buffer (current one if no file). ;; AFTER-HOOK specifies the local value for vc-log-operation-hook. - ;; BEFORE-HOOK specifies a hook to run before even asking for the - ;; checkin comments. (let ((parent (if file (find-file-noselect file) (current-buffer)))) - (when before-hook - (save-excursion - (set-buffer parent) - (run-hooks before-hook))) + (if vc-before-checkin-hook + (if file + (save-excursion + (set-buffer parent) + (run-hooks 'vc-before-checkin-hook)) + (run-hooks 'vc-before-checkin-hook))) (if comment (set-buffer (get-buffer-create "*VC-log*")) (pop-to-buffer (get-buffer-create "*VC-log*"))) (set (make-local-variable 'vc-parent-buffer) parent) (set (make-local-variable 'vc-parent-buffer-name) (concat " from " (buffer-name vc-parent-buffer))) - (vc-mode-line (or file " (no file)")) - (vc-log-mode) + (if file (vc-mode-line file)) + (vc-log-mode file) (make-local-variable 'vc-log-after-operation-hook) (if after-hook (setq vc-log-after-operation-hook after-hook)) (setq vc-log-operation action) - (setq vc-log-file file) (setq vc-log-version rev) (if comment (progn @@ -727,20 +907,18 @@ (vc-start-entry file rev (or comment (not vc-initial-comment)) "Enter initial comment." 'vc-backend-admin - nil 'vc-before-checkin-hook)) + nil)) -(defun vc-checkout (file &optional writable) +;; XEmacs: Function referred to in vc-hooks.el. +;;;###autoload +(defun vc-checkout (file &optional writable rev) "Retrieve a copy of the latest version of the given file." - ;; XEmacs - ftp is suppressed by the check for a filename handler in - ;; vc-registered, so this is needless surplussage ;; If ftp is on this system and the name matches the ange-ftp format ;; for a remote file, the user is trying something that won't work. - ;; (if (and (string-match "^/[^/:]+:" file) (vc-find-binary "ftp")) - ;; (error "Sorry, you can't check out files over FTP")) - (vc-backend-checkout file writable) - (if (string-equal file buffer-file-name) - (vc-resynch-window file t t)) - ) + (if (and (string-match "^/[^/:]+:" file) (vc-find-binary "ftp")) + (error "Sorry, you can't check out files over FTP")) + (vc-backend-checkout file writable rev) + (vc-resynch-buffer file t t)) (defun vc-steal-lock (file rev &optional owner) "Steal the lock on the current workfile." @@ -785,7 +963,7 @@ popped up to accept a comment." (vc-start-entry file rev comment "Enter a change comment." 'vc-backend-checkin - 'vc-checkin-hook 'vc-before-checkin-hook)) + 'vc-checkin-hook)) ;;; Here is a checkin hook that may prove useful to sites using the ;;; ChangeLog facility supported by Emacs. @@ -800,7 +978,7 @@ ;; Make sure the defvar for add-log-current-defun-function has been executed ;; before binding it. (require 'add-log) - (let ( ; Extract the comment first so we get any error before doing anything. + (let (;; Extract the comment first so we get any error before doing anything. (comment (ring-ref vc-comment-ring 0)) ;; Don't let add-change-log-entry insert a defun name. (add-log-current-defun-function 'ignore) @@ -823,8 +1001,8 @@ (indent-to indentation)) (setq end (point)))) ;; Fill the inserted text, preserving open-parens at bol. - (let ((paragraph-separate (concat paragraph-separate "\\|^\\s *\\s(")) - (paragraph-start (concat paragraph-start "\\|^\\s *\\s("))) + (let ((paragraph-separate (concat paragraph-separate "\\|\\s *\\s(")) + (paragraph-start (concat paragraph-start "\\|\\s *\\s("))) (beginning-of-line) (fill-region (point) end)) ;; Canonicalize the white space at the end of the entry so it is @@ -847,8 +1025,6 @@ ;; Comment too long? (vc-backend-logentry-check vc-log-file) ;; Record the comment in the comment ring - (if (null vc-comment-ring) - (setq vc-comment-ring (make-ring vc-maximum-comment-ring-size))) (ring-insert vc-comment-ring (buffer-string)) )) ;; Sync parent buffer in case the user modified it while editing the comment. @@ -857,25 +1033,28 @@ (set-buffer vc-parent-buffer) (or vc-dired-mode (vc-buffer-sync))) - ;; OK, do it to it - (if vc-log-operation - (save-excursion - (funcall vc-log-operation - vc-log-file - vc-log-version - (buffer-string))) - (error "No log operation is pending")) - ;; save the vc-log-after-operation-hook of log buffer - (let ((after-hook vc-log-after-operation-hook)) + (if (not vc-log-operation) (error "No log operation is pending")) + ;; save the parameters held in buffer-local variables + (let ((log-operation vc-log-operation) + (log-file vc-log-file) + (log-version vc-log-version) + (log-entry (buffer-string)) + (after-hook vc-log-after-operation-hook)) ;; Return to "parent" buffer of this checkin and remove checkin window (pop-to-buffer vc-parent-buffer) (let ((logbuf (get-buffer "*VC-log*"))) (delete-windows-on logbuf) (kill-buffer logbuf)) + ;; OK, do it to it + (save-excursion + (funcall log-operation + log-file + log-version + log-entry)) ;; Now make sure we see the expanded headers (if buffer-file-name (vc-resynch-window buffer-file-name vc-keep-workfiles t)) - (run-hooks after-hook))) + (run-hooks after-hook 'vc-finish-logentry-hook))) ;; Code for access to the comment ring @@ -883,7 +1062,7 @@ "Cycle backwards through comment history." (interactive "*p") (let ((len (ring-length vc-comment-ring))) - (cond ((or (not len) (<= len 0)) ; XEmacs change from Barry Warsaw + (cond ((<= len 0) (message "Empty comment ring") (ding)) (t @@ -894,7 +1073,7 @@ (if (null vc-comment-ring-index) (setq vc-comment-ring-index (if (> arg 0) -1 - (if (< arg 0) 1 0)))) + (if (< arg 0) 1 0)))) (setq vc-comment-ring-index (mod (+ vc-comment-ring-index arg) len)) (message "%d" (1+ vc-comment-ring-index)) @@ -914,7 +1093,7 @@ (if (null vc-comment-ring-index) (setq vc-comment-ring-index -1)) (let ((str (regexp-quote str)) - (len (ring-length vc-comment-ring)) + (len (ring-length vc-comment-ring)) (n (1+ vc-comment-ring-index))) (while (and (< n len) (not (string-match str (ring-ref vc-comment-ring n)))) (setq n (+ n 1))) @@ -931,6 +1110,7 @@ (if (null vc-comment-ring-index) (setq vc-comment-ring-index 0)) (let ((str (regexp-quote str)) + (len (ring-length vc-comment-ring)) (n vc-comment-ring-index)) (while (and (>= n 0) (not (string-match str (ring-ref vc-comment-ring n)))) (setq n (- n 1))) @@ -947,11 +1127,11 @@ checked in version of that file. This uses no arguments. With a prefix argument, it reads the file name to use and two version designators specifying which versions to compare." - (interactive "P") + (interactive (list current-prefix-arg t)) (if vc-dired-mode (set-buffer (find-file-noselect (dired-get-filename)))) (while vc-parent-buffer - (pop-to-buffer vc-parent-buffer)) + (pop-to-buffer vc-parent-buffer)) (if historic (call-interactively 'vc-version-diff) (if (or (null buffer-file-name) (null (vc-name buffer-file-name))) @@ -964,7 +1144,7 @@ (vc-buffer-sync not-urgent) (setq unchanged (vc-workfile-unchanged-p buffer-file-name)) (if unchanged - (message "No changes to %s since latest version." file) + (message "No changes to %s since latest version" file) (vc-backend-diff file) ;; Ideally, we'd like at this point to parse the diff so that ;; the buffer effectively goes into compilation mode and we @@ -973,23 +1153,22 @@ ;; problem is that the `old' file doesn't exist to be ;; visited. This plays hell with numerous assumptions in ;; the diff.el and compile.el machinery. - (pop-to-buffer "*vc*") + (set-buffer "*vc-diff*") (setq default-directory (file-name-directory file)) (if (= 0 (buffer-size)) (progn (setq unchanged t) - (message "No changes to %s since latest version." file)) + (message "No changes to %s since latest version" file)) + (pop-to-buffer "*vc-diff*") (goto-char (point-min)) (shrink-window-if-larger-than-buffer))) (not unchanged)))) -;;;###autoload (defun vc-version-diff (file rel1 rel2) "For FILE, report diffs between two stored versions REL1 and REL2 of it. If FILE is a directory, generate diffs between versions for all registered files in or below it." - ;; XEmacs - better prompt - (interactive "FFile or directory to diff: \nsOlder version (default is repository): \nsNewer version (default is workfile): ") + (interactive "FFile or directory to diff: \nsOlder version: \nsNewer version: ") (if (string-equal rel1 "") (setq rel1 nil)) (if (string-equal rel2 "") (setq rel2 nil)) (if (file-directory-p file) @@ -1004,9 +1183,10 @@ " and " (or rel2 "current workfile(s)") ":\n\n") - (set-buffer (get-buffer-create "*vc*")) + (set-buffer (get-buffer-create "*vc-diff*")) (cd file) (vc-file-tree-walk + default-directory (function (lambda (f) (message "Looking at %s" f) (and @@ -1022,7 +1202,7 @@ ) (if (zerop (vc-backend-diff file rel1 rel2)) (message "No changes to %s between %s and %s." file rel1 rel2) - (pop-to-buffer "*vc*")))) + (pop-to-buffer "*vc-diff*")))) ;;;###autoload (defun vc-version-other-window (rev) @@ -1033,15 +1213,15 @@ (if vc-dired-mode (set-buffer (find-file-noselect (dired-get-filename)))) (while vc-parent-buffer - (pop-to-buffer vc-parent-buffer)) + (pop-to-buffer vc-parent-buffer)) (if (and buffer-file-name (vc-name buffer-file-name)) (let* ((version (if (string-equal rev "") (vc-latest-version buffer-file-name) rev)) (filename (concat buffer-file-name ".~" version "~"))) - (or (file-exists-p filename) - (vc-backend-checkout buffer-file-name nil version filename)) - (find-file-other-window filename)) + (or (file-exists-p filename) + (vc-backend-checkout buffer-file-name nil version filename)) + (find-file-other-window filename)) (vc-registration-error buffer-file-name))) ;; Header-insertion code @@ -1055,7 +1235,7 @@ (if vc-dired-mode (find-file-other-window (dired-get-filename))) (while vc-parent-buffer - (pop-to-buffer vc-parent-buffer)) + (pop-to-buffer vc-parent-buffer)) (save-excursion (save-restriction (widen) @@ -1065,44 +1245,57 @@ (let* ((delims (cdr (assq major-mode vc-comment-alist))) (comment-start-vc (or (car delims) comment-start "#")) (comment-end-vc (or (car (cdr delims)) comment-end "")) - (hdstrings (cdr (assoc (vc-backend-deduce buffer-file-name) - vc-header-alist)))) - (mapcar #'(lambda (s) - (insert comment-start-vc "\t" s "\t" - comment-end-vc "\n")) + (hdstrings (cdr (assoc (vc-backend (buffer-file-name)) vc-header-alist)))) + (mapcar (function (lambda (s) + (insert comment-start-vc "\t" s "\t" + comment-end-vc "\n"))) hdstrings) (if vc-static-header-alist - (mapcar #'(lambda (f) - (if (and buffer-file-name - (string-match (car f) buffer-file-name)) - (insert (format (cdr f) (car hdstrings))))) + (mapcar (function (lambda (f) + (if (string-match (car f) buffer-file-name) + (insert (format (cdr f) (car hdstrings)))))) vc-static-header-alist)) ) ))))) -;; The VC directory submode. Coopt Dired for this. +(defun vc-clear-headers () + ;; Clear all version headers in the current buffer, i.e. reset them + ;; to the nonexpanded form. Only implemented for RCS, yet. + ;; Don't lose point and mark during this. + (let ((context (vc-buffer-context))) + (goto-char (point-min)) + (while (re-search-forward "\\$\\([A-Za-z]+\\): [^\\$]+\\$" nil t) + (replace-match "$\\1$")) + (vc-restore-buffer-context context))) + +;; The VC directory major mode. Coopt Dired for this. ;; All VC commands get mapped into logical equivalents. -;; XEmacs -(defvar vc-dired-prefix-map (let ((map (make-sparse-keymap))) - (set-keymap-name map 'vc-dired-prefix-map) - (define-key map "\C-xv" vc-prefix-map) - map)) - -(or (not (boundp 'minor-mode-map-alist)) - (assq 'vc-dired-mode minor-mode-map-alist) - (setq minor-mode-map-alist - (cons (cons 'vc-dired-mode vc-dired-prefix-map) - minor-mode-map-alist))) - -(defun vc-dired-mode () - "The augmented Dired minor mode used in VC directory buffers. +(define-derived-mode vc-dired-mode dired-mode "Dired under VC" + "The major mode used in VC directory buffers. It is derived from Dired. All Dired commands operate normally. Users currently locking listed files are listed in place of the file's owner and group. Keystrokes bound to VC commands will execute as though they had been called on a buffer attached to the file named in the current Dired buffer line." - (setq vc-dired-mode t) - (setq vc-mode " under VC")) + (setq vc-dired-mode t)) + +(define-key vc-dired-mode-map "\C-xv" vc-prefix-map) +(define-key vc-dired-mode-map "g" 'vc-dired-update) +(define-key vc-dired-mode-map "=" 'vc-diff) + +(defun vc-dired-state-info (file) + ;; Return the string that indicates the version control status + ;; on a VC dired line. + (let ((cvs-state (and (eq (vc-backend file) 'CVS) + (vc-cvs-status file)))) + (if cvs-state + (cond ((eq cvs-state 'up-to-date) nil) + ((eq cvs-state 'needs-checkout) "patch") + ((eq cvs-state 'locally-modified) "modified") + ((eq cvs-state 'needs-merge) "merge") + ((eq cvs-state 'unresolved-conflict) "conflict") + ((eq cvs-state 'locally-added) "added")) + (vc-locking-user file)))) (defun vc-dired-reformat-line (x) ;; Hack a directory-listing line, plugging in locking-user info in @@ -1115,101 +1308,165 @@ ;; (insert (concat x "\t"))) ;; ;; This code, like dired, assumes UNIX -l format. - (forward-word 1) ; skip over any extra field due to -ibs options - (cond ((numberp x) ; This hack is used by the CVS code. See vc-locking-user. - (cond - ((re-search-forward "\\([0-9]+ \\)\\([^ ]+\\)\\( .*\\)" nil 0) - (save-excursion - (goto-char (match-beginning 2)) - (insert "(") - (goto-char (1+ (match-end 2))) - (insert ")") - (delete-char (- 17 (- (match-end 2) (match-beginning 2)))) - (insert (substring " " 0 - (- 7 (- (match-end 2) (match-beginning 2))))))))) - (t - (if x (setq x (concat "(" x ")"))) - (if (re-search-forward "\\([0-9]+ \\).................\\( .*\\)" nil 0) - (let ((rep (substring (concat x " ") 0 9))) - (replace-match (concat "\\1" rep "\\2") t))) - ))) + (let ((pos (point)) limit perm owner date-and-file) + (end-of-line) + (setq limit (point)) + (goto-char pos) + (cond + ((or + (re-search-forward ;; owner and group +"\\([drwxlts-]+ \\) *[0-9]+ \\([^ ]+\\) +[^ ]+ +[0-9]+\\( [^ 0-9]+ [0-9 ][0-9] .*\\)" + limit t) + (re-search-forward ;; only owner displayed +"\\([drwxlts-]+ \\) *[0-9]+ \\([^ ]+\\) +[0-9]+\\( [^ 0-9]+ [0-9 ][0-9] .*\\)" + limit t)) + (setq perm (match-string 1) + owner (match-string 2) + date-and-file (match-string 3))) + ((re-search-forward ;; OS/2 -l format, no links, owner, group +"\\([drwxlts-]+ \\) *[0-9]+\\( [^ 0-9]+ [0-9 ][0-9] .*\\)" + limit t) + (setq perm (match-string 1) + date-and-file (match-string 2)))) + (if x (setq x (concat "(" x ")"))) + (let ((rep (substring (concat x " ") 0 10))) + (replace-match (concat perm rep date-and-file))))) + +(defun vc-dired-update-line (file) + ;; Update the vc-dired listing line of file -- it is assumed + ;; that point is already on this line. Don't use dired-do-redisplay + ;; for this, because it cannot handle the way vc-dired deals with + ;; subdirectories. + (beginning-of-line) + (forward-char 2) + (let ((start (point))) + (forward-line 1) + (beginning-of-line) + (delete-region start (point)) + (insert-directory file dired-listing-switches) + (forward-line -1) + (end-of-line) + (delete-char (- (length file))) + (insert (substring file (length (expand-file-name default-directory)))) + (goto-char start)) + (vc-dired-reformat-line (vc-dired-state-info file))) +(defun vc-dired-update (verbose) + (interactive "P") + (vc-directory default-directory verbose)) + +;;; Note in Emacs 18 the following defun gets overridden +;;; with the symbol 'vc-directory-18. See below. ;;;###autoload -(defun vc-directory (dir verbose &optional nested) - "Show version-control status of all files in the directory DIR. -If the second argument VERBOSE is non-nil, show all files; -otherwise show only files that current locked in the version control system. -Interactively, supply a prefix arg to make VERBOSE non-nil. - -If the optional third argument NESTED is non-nil, -scan the entire tree of subdirectories of the current directory." - (interactive "DVC status of directory: \nP") - (let* (nonempty - (dl (+ 1 (length (directory-file-name (expand-file-name dir))))) - (filelist nil) (userlist nil) - dired-buf - (subfunction - (function (lambda (f) - (if (vc-registered f) - (let ((user (vc-locking-user f))) - (and (or verbose user) - (setq filelist (cons (substring f dl) filelist)) - (setq userlist (cons user userlist))))))))) - (let ((default-directory (expand-file-name dir))) - (if nested - (vc-file-tree-walk subfunction) - (vc-dir-all-files subfunction))) - (save-excursion - (dired (cons dir (nreverse filelist)) - dired-listing-switches) - (rename-buffer (generate-new-buffer-name "VC-DIRED")) - (setq dired-buf (current-buffer)) - (setq nonempty (not (zerop (buffer-size))))) +(defun vc-directory (dirname verbose) + "Show version-control status of the current directory and subdirectories. +Normally it creates a Dired buffer that lists only the locked files +in all these directories. With a prefix argument, it lists all files." + (interactive "DDired under VC (directory): \nP") + (require 'dired) + (setq dirname (expand-file-name dirname)) + ;; force a trailing slash + (if (not (eq (elt dirname (1- (length dirname))) ?/)) + (setq dirname (concat dirname "/"))) + (let (nonempty + (dl (if (featurep 'xemacs) + (+ 1 (length (directory-file-name (expand-file-name dir)))) + (length dirname))) + (filelist nil) (statelist nil) + (old-dir default-directory) + dired-buf + dired-buf-mod-count) + (vc-file-tree-walk + dirname + (function + (lambda (f) + (if (vc-registered f) + (let ((state (vc-dired-state-info f))) + (and (or verbose state) + (setq filelist (cons (substring f dl) filelist)) + (setq statelist (cons state statelist)))))))) + (save-window-excursion + (save-excursion + ;; This uses a semi-documented feature of dired; giving a switch + ;; argument forces the buffer to refresh each time. + (setq dired-buf + (dired-internal-noselect + (cons dirname (nreverse filelist)) + dired-listing-switches 'vc-dired-mode)) + (setq nonempty (not (eq 0 (length filelist)))))) + (switch-to-buffer dired-buf) + ;; Make a few modifications to the header + (setq buffer-read-only nil) + (goto-char (point-min)) + (forward-line 1) ;; Skip header line + (let ((start (point))) ;; Erase (but don't remove) the + (end-of-line) ;; "wildcard" line. + (delete-region start (point))) + (beginning-of-line) (if nonempty (progn - (pop-to-buffer dired-buf) - (vc-dired-mode) - (goto-char (point-min)) - (setq buffer-read-only nil) - (forward-line 1) ; Skip header line + ;; Plug the version information into the individual lines (mapcar (function (lambda (x) - (forward-char 2) ; skip dired's mark area - (vc-dired-reformat-line x) - (forward-line 1))) ; go to next line - (nreverse userlist)) - (dired-insert-set-properties (point-min) (point-max)) + (forward-char 2) ;; skip dired's mark area + (vc-dired-reformat-line x) + (forward-line 1))) ;; go to next line + (nreverse statelist)) + (if (featurep 'xemacs) + (dired-insert-set-properties (point-min) (point-max))) (setq buffer-read-only t) (goto-char (point-min)) + (dired-next-line 2) ) + (dired-next-line 1) + (insert " ") + (setq buffer-read-only t) (message "No files are currently %s under %s" - (if verbose "registered" "locked") default-directory)) + (if verbose "registered" "locked") dirname)) )) -(defun make-string-stringlist (stringlist) - "Turn a list of strings into a string of space-delimited elements." - (save-excursion - (let ((tlist stringlist) - (buf (generate-new-buffer "*stringlist*"))) - (set-buffer buf) - (insert (car tlist)) - (setq tlist (cdr tlist)) - (while (not (null tlist)) - (setq s (car tlist)) - (insert s) - (if (cdr tlist) (insert " ")) - (setq tlist (cdr tlist))) - (setq string (buffer-string)) - (kill-this-buffer) - string - ))) +;; Emacs 18 version +(defun vc-directory-18 (verbose) + "Show version-control status of all files under the current directory." + (interactive "P") + (let (nonempty (dir default-directory)) + (save-excursion + (set-buffer (get-buffer-create "*vc-status*")) + (erase-buffer) + (cd dir) + (vc-file-tree-walk + default-directory + (function (lambda (f) + (if (vc-registered f) + (let ((user (vc-locking-user f))) + (if (or user verbose) + (insert (format + "%s %s\n" + (concat user) f)))))))) + (setq nonempty (not (zerop (buffer-size))))) + + (if nonempty + (progn + (pop-to-buffer "*vc-status*" t) + (goto-char (point-min)) + (shrink-window-if-larger-than-buffer))) + (message "No files are currently %s under %s" + (if verbose "registered" "locked") default-directory)) + ) + +(or (boundp 'minor-mode-map-alist) + (fset 'vc-directory 'vc-directory-18)) ;; Named-configuration support for SCCS (defun vc-add-triple (name file rev) (save-excursion - (find-file (concat (vc-backend-subdirectory-name file) "/" vc-name-assoc-file)) + (find-file (expand-file-name + vc-name-assoc-file + (file-name-as-directory + (expand-file-name (vc-backend-subdirectory-name file) + (file-name-directory file))))) (goto-char (point-max)) (insert name "\t:\t" file "\t" rev "\n") (basic-save-buffer) @@ -1218,7 +1475,12 @@ (defun vc-record-rename (file newname) (save-excursion - (find-file (concat (vc-backend-subdirectory-name file) "/" vc-name-assoc-file)) + (find-file + (expand-file-name + vc-name-assoc-file + (file-name-as-directory + (expand-file-name (vc-backend-subdirectory-name file) + (file-name-directory file))))) (goto-char (point-min)) ;; (replace-regexp (concat ":" (regexp-quote file) "$") (concat ":" newname)) (while (re-search-forward (concat ":" (regexp-quote file) "$") nil t) @@ -1235,22 +1497,37 @@ (and (>= firstchar ?0) (<= firstchar ?9))) name) (t - (car (vc-master-info - (concat (vc-backend-subdirectory-name file) "/" vc-name-assoc-file) - (list (concat name "\t:\t" file "\t\\(.+\\)")))) - ))) + (save-excursion + (set-buffer (get-buffer-create "*vc-info*")) + (vc-insert-file + (expand-file-name + vc-name-assoc-file + (file-name-as-directory + (expand-file-name (vc-backend-subdirectory-name file) + (file-name-directory file))))) + (prog1 + (car (vc-parse-buffer + (list (list (concat name "\t:\t" file "\t\\(.+\\)") 1)))) + (kill-buffer "*vc-info*")))) + )) ;; Named-configuration entry points -(defun vc-locked-example () - ;; Return an example of why the current directory is not ready to be snapshot - ;; or nil if no such example exists. - (catch 'vc-locked-example - (vc-file-tree-walk - (function (lambda (f) - (if (and (vc-registered f) (vc-locking-user f)) - (throw 'vc-locked-example f))))) - nil)) +(defun vc-snapshot-precondition () + ;; Scan the tree below the current directory. + ;; If any files are locked, return the name of the first such file. + ;; (This means, neither snapshot creation nor retrieval is allowed.) + ;; If one or more of the files are currently visited, return `visited'. + ;; Otherwise, return nil. + (let ((status nil)) + (catch 'vc-locked-example + (vc-file-tree-walk + default-directory + (function (lambda (f) + (and (vc-registered f) + (if (vc-locking-user f) (throw 'vc-locked-example f) + (if (get-file-buffer f) (setq status 'visited))))))) + status))) ;;;###autoload (defun vc-create-snapshot (name) @@ -1259,10 +1536,11 @@ directory. For each file, the version level of its latest version becomes part of the named configuration." (interactive "sNew snapshot name: ") - (let ((locked (vc-locked-example))) - (if locked - (error "File %s is locked" locked) + (let ((result (vc-snapshot-precondition))) + (if (stringp result) + (error "File %s is locked" result) (vc-file-tree-walk + default-directory (function (lambda (f) (and (vc-name f) (vc-backend-assign-name f name))))) @@ -1275,14 +1553,19 @@ Otherwise, all registered files are checked out (unlocked) at their version levels in the snapshot." (interactive "sSnapshot name to retrieve: ") - (let ((locked (vc-locked-example))) - (if locked - (error "File %s is locked" locked) + (let ((result (vc-snapshot-precondition)) + (update nil)) + (if (stringp result) + (error "File %s is locked" result) + (if (eq result 'visited) + (setq update (yes-or-no-p "Update the affected buffers? "))) (vc-file-tree-walk + default-directory (function (lambda (f) (and (vc-name f) (vc-error-occurred - (vc-backend-checkout f nil name)))))) + (vc-backend-checkout f nil name) + (if update (vc-resynch-buffer f t t))))))) ))) ;; Miscellaneous other entry points @@ -1294,21 +1577,55 @@ (if vc-dired-mode (set-buffer (find-file-noselect (dired-get-filename)))) (while vc-parent-buffer - (pop-to-buffer vc-parent-buffer)) + (pop-to-buffer vc-parent-buffer)) (if (and buffer-file-name (vc-name buffer-file-name)) (let ((file buffer-file-name)) - (vc-backend-print-log file) + (vc-backend-print-log file) (pop-to-buffer (get-buffer-create "*vc*")) (setq default-directory (file-name-directory file)) + (goto-char (point-max)) (forward-line -1) (while (looking-at "=*\n") (delete-char (- (match-end 0) (match-beginning 0))) (forward-line -1)) (goto-char (point-min)) (if (looking-at "[\b\t\n\v\f\r ]+") (delete-char (- (match-end 0) (match-beginning 0)))) - (shrink-window-if-larger-than-buffer) + (shrink-window-if-larger-than-buffer) + ;; move point to the log entry for the current version + (and (not (eq (vc-backend file) 'SCCS)) + (re-search-forward + ;; also match some context, for safety + (concat "----\nrevision " (vc-workfile-version file) + "\\(\tlocked by:.*\n\\|\n\\)date: ") nil t) + ;; set the display window so that + ;; the whole log entry is displayed + (let (start end lines) + (beginning-of-line) (forward-line -1) (setq start (point)) + (if (not (re-search-forward "^----*\nrevision" nil t)) + (setq end (point-max)) + (beginning-of-line) (forward-line -1) (setq end (point))) + (setq lines (count-lines start end)) + (cond + ;; if the global information and this log entry fit + ;; into the window, display from the beginning + ((< (count-lines (point-min) end) (window-height)) + (goto-char (point-min)) + (recenter 0) + (goto-char start)) + ;; if the whole entry fits into the window, + ;; display it centered + ((< (1+ lines) (window-height)) + (goto-char start) + (recenter (1- (- (/ (window-height) 2) (/ lines 2))))) + ;; otherwise (the entry is too large for the window), + ;; display from the start + (t + (goto-char start) + (recenter 0))))) ) - (vc-registration-error buffer-file-name))) + (vc-registration-error buffer-file-name) + ) + ) ;;;###autoload (defun vc-revert-buffer () @@ -1321,20 +1638,28 @@ (if vc-dired-mode (find-file-other-window (dired-get-filename))) (while vc-parent-buffer - (pop-to-buffer vc-parent-buffer)) + (pop-to-buffer vc-parent-buffer)) (let ((file buffer-file-name) + ;; This operation should always ask for confirmation. + (vc-suppress-confirm nil) (obuf (current-buffer)) (changed (vc-diff nil t))) - (if (and changed (or vc-suppress-confirm - (not (yes-or-no-p "Discard changes? ")))) + (if (and changed (not (yes-or-no-p "Discard changes? "))) (progn - (delete-window) + (if (and (window-dedicated-p (selected-window)) + (one-window-p t 'selected-frame)) + (make-frame-invisible (selected-frame)) + (delete-window)) (error "Revert cancelled")) (set-buffer obuf)) (if changed - (delete-window)) + (if (and (window-dedicated-p (selected-window)) + (one-window-p t 'selected-frame)) + (make-frame-invisible (selected-frame)) + (delete-window))) (vc-backend-revert file) (vc-resynch-window file t t) - )) + ) + ) ;;;###autoload (defun vc-cancel-version (norevert) @@ -1345,19 +1670,63 @@ (find-file-other-window (dired-get-filename))) (while vc-parent-buffer (pop-to-buffer vc-parent-buffer)) - (let* ((target (concat (vc-latest-version (buffer-file-name)))) - (yours (concat (vc-your-latest-version (buffer-file-name)))) - (prompt (if (string-equal yours target) - "Remove your version %s from master? " - "Version %s was not your change. Remove it anyway? "))) - (if (null (yes-or-no-p (format prompt target))) + (cond + ((not (vc-registered (buffer-file-name))) + (vc-registration-error (buffer-file-name))) + ((eq (vc-backend (buffer-file-name)) 'CVS) + (error "Unchecking files under CVS is dangerous and not supported in VC")) + ((vc-locking-user (buffer-file-name)) + (error "This version is locked; use vc-revert-buffer to discard changes")) + ((not (vc-latest-on-branch-p (buffer-file-name))) + (error "This is not the latest version--VC cannot cancel it"))) + (let* ((target (vc-workfile-version (buffer-file-name))) + (recent (if (vc-trunk-p target) "" (vc-branch-part target))) + (config (current-window-configuration)) done) + (if (null (yes-or-no-p (format "Remove version %s from master? " target))) nil + (setq norevert (or norevert (not + (yes-or-no-p "Revert buffer to most recent remaining version? ")))) (vc-backend-uncheck (buffer-file-name) target) - (if (or norevert - (not (yes-or-no-p "Revert buffer to most recent remaining version? "))) - (vc-mode-line (buffer-file-name)) - (vc-checkout (buffer-file-name) nil))) - )) + ;; Check out the most recent remaining version. If it fails, because + ;; the whole branch got deleted, do a double-take and check out the + ;; version where the branch started. + (while (not done) + (condition-case err + (progn + (if norevert + ;; Check out locked, but only to disc, and keep + ;; modifications in the buffer. + (vc-backend-checkout (buffer-file-name) t recent) + ;; Check out unlocked, and revert buffer. + (vc-checkout (buffer-file-name) nil recent)) + (setq done t)) + ;; If the checkout fails, vc-do-command signals an error. + ;; We catch this error, check the reason, correct the + ;; version number, and try a second time. + (error (set-buffer "*vc*") + (goto-char (point-min)) + (if (search-forward "no side branches present for" nil t) + (progn (setq recent (vc-branch-part recent)) + ;; vc-do-command popped up a window with + ;; the error message. Get rid of it, by + ;; restoring the old window configuration. + (set-window-configuration config)) + ;; No, it was some other error: re-signal it. + (signal (car err) (cdr err)))))) + ;; If norevert, clear version headers and mark the buffer modified. + (if norevert + (progn + (set-visited-file-name (buffer-file-name)) + (if (not vc-make-backup-files) + ;; inhibit backup for this buffer + (progn (make-local-variable 'backup-inhibited) + (setq backup-inhibited t))) + (if (eq (vc-backend (buffer-file-name)) 'RCS) + (progn (setq buffer-read-only nil) + (vc-clear-headers))) + (vc-mode-line (buffer-file-name)))) + (message "Version %s has been removed from the master" target) + ))) ;;;###autoload (defun vc-rename-file (old new) @@ -1369,10 +1738,8 @@ ;; consider to be wrong. When the famous, long-awaited rename database is ;; implemented things might change for the better. This is unlikely to occur ;; until CVS 2.0 is released. --ceder 1994-01-23 21:27:51 - (if (eq (vc-backend-deduce old) 'CVS) - (error "Renaming files under CVS is dangerous and not supported in VC.")) - (if (eq (vc-backend-deduce old) 'CC) - (error "VC's ClearCase support cannot rename files.")) + (if (eq (vc-backend old) 'CVS) + (error "Renaming files under CVS is dangerous and not supported in VC")) (let ((oldbuf (get-file-buffer old))) (if (and oldbuf (buffer-modified-p oldbuf)) (error "Please save files before moving them")) @@ -1383,20 +1750,20 @@ (let ((oldmaster (vc-name old))) (if oldmaster (progn - (if (vc-locking-user old) + (if (vc-locking-user old) (error "Please check in files before moving them")) (if (or (file-symlink-p oldmaster) ;; This had FILE, I changed it to OLD. -- rms. (file-symlink-p (vc-backend-subdirectory-name old))) - (error "This is not a safe thing to do in the presence of symbolic links")) + (error "This is not a safe thing to do in the presence of symbolic links")) (rename-file - oldmaster - (let ((backend (vc-backend-deduce old)) + oldmaster + (let ((backend (vc-backend old)) (newdir (or (file-name-directory new) "")) (newbase (file-name-nondirectory new))) (catch 'found (mapcar - (function + (function (lambda (s) (if (eq backend (cdr s)) (let* ((newmaster (format (car s) newdir newbase)) @@ -1408,61 +1775,65 @@ (error "New file lacks a version control directory")))))) (if (or (not oldmaster) (file-exists-p old)) (rename-file old new))) - ;; ?? Renaming a file might change its contents due to keyword expansion. - ;; We should really check out a new copy if the old copy was precisely equal - ;; to some checked in version. However, testing for this is tricky.... +; ?? Renaming a file might change its contents due to keyword expansion. +; We should really check out a new copy if the old copy was precisely equal +; to some checked in version. However, testing for this is tricky.... (if oldbuf - (save-excursion + (save-excursion (set-buffer oldbuf) - (set-visited-file-name new) + (let ((buffer-read-only buffer-read-only)) + (set-visited-file-name new)) + (vc-backend new) + (vc-mode-line new) (set-buffer-modified-p nil)))) ;; This had FILE, I changed it to OLD. -- rms. (vc-backend-dispatch old - (vc-record-rename old new) ;SCCS - ;; #### - This CAN kinda be done for both rcs and - ;; cvs. It needs to be implemented. -- Stig - nil ;RCS - nil ;CVS - nil ;CC - ) + (vc-record-rename old new) ;SCCS + nil ;RCS + nil ;CVS + ) ) ;;;###autoload -(defun vc-rename-this-file (new) - (interactive "FVC rename file to: ") - (vc-rename-file buffer-file-name new)) +(defun vc-update-change-log (&rest args) + "Find change log file and add entries from recent RCS/CVS logs. +Normally, find log entries for all registered files in the default +directory using `rcs2log', which finds CVS logs preferentially. +The mark is left at the end of the text prepended to the change log. + +With prefix arg of C-u, only find log entries for the current buffer's file. -;;;###autoload -(defun vc-update-change-log (&rest args) - "Find change log file and add entries from recent RCS logs. -The mark is left at the end of the text prepended to the change log. -With prefix arg of C-u, only find log entries for the current buffer's file. -With any numeric prefix arg, find log entries for all files currently visited. -Otherwise, find log entries for all registered files in the default directory. -From a program, any arguments are passed to the `rcs2log' script." +With any numeric prefix arg, find log entries for all currently visited +files that are under version control. This puts all the entries in the +log for the default directory, which may not be appropriate. + +From a program, any arguments are assumed to be filenames and are +passed to the `rcs2log' script after massaging to be relative to the +default directory." (interactive (cond ((consp current-prefix-arg) ;C-u (list buffer-file-name)) - (current-prefix-arg ;Numeric argument. + (current-prefix-arg ;Numeric argument. (let ((files nil) (buffers (buffer-list)) file) (while buffers (setq file (buffer-file-name (car buffers))) - (and file (vc-backend-deduce file) - (setq files (cons file files))) + (and file (vc-backend file) + (setq files (cons file files))) (setq buffers (cdr buffers))) files)) (t - (let ((RCS (concat default-directory "RCS"))) - (and (file-directory-p RCS) - (mapcar (function - (lambda (f) - (if (string-match "\\(.*\\),v$" f) - (substring f 0 (match-end 1)) - f))) - (directory-files RCS nil "...\\|^[^.]\\|^.[^.]"))))))) - (let ((odefault default-directory)) + ;; `rcs2log' will find the relevant RCS or CVS files + ;; relative to the curent directory if none supplied. + nil))) + (let ((odefault default-directory) + (full-name (or add-log-full-name + (user-full-name) + (user-login-name) + (format "uid%d" (number-to-string (user-uid))))) + (mailing-address (or add-log-mailing-address + user-mail-address))) (find-file-other-window (find-change-log)) (barf-if-buffer-read-only) (vc-buffer-sync) @@ -1471,283 +1842,24 @@ (push-mark) (message "Computing change log entries...") (message "Computing change log entries... %s" - (if (or (null args) - (eq 0 (apply 'call-process "rcs2log" nil t nil - "-n" - (user-login-name) - (user-full-name) - user-mail-address - (mapcar (function - (lambda (f) - (file-relative-name - (if (file-name-absolute-p f) - f - (concat odefault f))))) - args)))) + (if (eq 0 (apply 'call-process "rcs2log" nil '(t nil) nil + "-u" + (concat (vc-user-login-name) + "\t" + full-name + "\t" + mailing-address) + (mapcar (function + (lambda (f) + (file-relative-name + (if (file-name-absolute-p f) + f + (concat odefault f))))) + args))) "done" "failed")))) -;; Functions for querying the master and lock files. - -;; XEmacs - use match-string instead... -;; (defun vc-match-substring (bn) -;; (buffer-substring (match-beginning bn) (match-end bn))) - -(defun vc-parse-buffer (patterns &optional file properties) - ;; Each pattern is of the form: - ;; regex ; subex is 1, and date-subex is 2 (or nil) - ;; (regex subex date-subex) - ;; - ;; Use PATTERNS to parse information out of the current buffer by matching - ;; each REGEX in the list and the returning the string matched by SUBEX. - ;; If a DATE-SUBEX is present, then the SUBEX from the match with the - ;; highest value for DATE-SUBEX (string comparison is used) will be - ;; returned. - ;; - ;; If FILE and PROPERTIES are given, the latter must be a list of - ;; properties of the same length as PATTERNS; each property is assigned - ;; the corresponding value. - ;; - (let (pattern regex subex date-subex latest-date val values date) - (while (setq pattern (car patterns)) - (if (stringp pattern) - (setq regex pattern - subex 1 - date-subex (and (string-match "\\\\(.*\\\\(" regex) 2)) - (setq regex (car pattern) - subex (nth 1 pattern) - date-subex (nth 2 pattern))) - (goto-char (point-min)) - (if date-subex - (progn - (setq latest-date "" val nil) - (while (re-search-forward regex nil t) - (setq date (match-string date-subex)) - (if (string< latest-date date) - (setq latest-date date - val (match-string subex)))) - val) - ;; no date subex, so just take the first match... - (setq val (and (re-search-forward regex nil t) (match-string subex)))) - (if file (vc-file-setprop file (car properties) val)) - (setq values (cons val values) - patterns (cdr patterns) - properties (cdr properties))) - values - )) - -(defun vc-master-info (file fields &optional rfile properties) - ;; Search for information in a master file. - (if (and file (file-exists-p file)) - (save-excursion - (let ((buf)) - (setq buf (create-file-buffer file)) - (set-buffer buf)) - (erase-buffer) - (insert-file-contents file) - (set-buffer-modified-p nil) - (auto-save-mode nil) - (prog1 - (vc-parse-buffer fields rfile properties) - (kill-buffer (current-buffer))) - ) - (if rfile - (mapcar - (function (lambda (p) (vc-file-setprop rfile p nil))) - properties)) - ) - ) - -(defun vc-log-info (command file last flags patterns &optional properties) - ;; Search for information in log program output - (if (and file (file-exists-p file)) - (save-excursion - (set-buffer (get-buffer-create "*vc*")) - (apply 'vc-do-command 0 command file last flags) - (set-buffer-modified-p nil) - (prog1 - (vc-parse-buffer patterns file properties) - (kill-buffer (current-buffer)) - ) - ) - (if file - (mapcar - (function (lambda (p) (vc-file-setprop file p nil))) - properties)) - ) - ) - -(defun vc-locking-user (file) - "Return the name of the person currently holding a lock on FILE. -Return nil if there is no such person. -Under CVS, a file is considered locked if it has been modified since it -was checked out...even though it may well be writable by you." - (setq file (expand-file-name file)) ; use full pathname - (cond ((eq (vc-backend-deduce file) 'CVS) - (if (vc-workfile-unchanged-p file t) - nil - ;; XEmacs - ahead of the pack... - (user-login-name (nth 2 (file-attributes file))))) - (t - ;; #### - this can probably be cleaned up as a result of the changes to - ;; user-login-name... - (if (or (not vc-keep-workfiles) - (eq vc-mistrust-permissions 't) - (and vc-mistrust-permissions - (funcall vc-mistrust-permissions (vc-backend-subdirectory-name - file)))) - (vc-true-locking-user file) - ;; This implementation assumes that any file which is under version - ;; control and has -rw-r--r-- is locked by its owner. This is true - ;; for both RCS and SCCS, which keep unlocked files at -r--r--r--. - ;; We have to be careful not to exclude files with execute bits on; - ;; scripts can be under version control too. Also, we must ignore - ;; the group-read and other-read bits, since paranoid users turn them off. - ;; This hack wins because calls to the very expensive vc-fetch-properties - ;; function only have to be made if (a) the file is locked by someone - ;; other than the current user, or (b) some untoward manipulation - ;; behind vc's back has changed the owner or the `group' or `other' - ;; write bits. - (let ((attributes (file-attributes file))) - (cond ((string-match ".r-..-..-." (nth 8 attributes)) - nil) - ((and (= (nth 2 attributes) (user-uid)) - (string-match ".rw..-..-." (nth 8 attributes))) - (user-login-name)) - (t - (vc-true-locking-user file)))) ; #### - this looks recursive!!! - )))) +;; Collect back-end-dependent stuff here -(defun vc-true-locking-user (file) - ;; The slow but reliable version - (vc-fetch-properties file) - (vc-file-getprop file 'vc-locking-user)) - -(defun vc-latest-version (file) - ;; Return version level of the latest version of FILE - (vc-fetch-properties file) - (vc-file-getprop file 'vc-latest-version)) - -(defun vc-your-latest-version (file) - ;; Return version level of the latest version of FILE checked in by you - (vc-fetch-properties file) - (vc-file-getprop file 'vc-your-latest-version)) - -;; Collect back-end-dependent stuff here -;; -;; Everything eventually funnels through these functions. To implement -;; support for a new version-control system, add another branch to the -;; vc-backend-dispatch macro and fill it in in each call. The variable -;; vc-master-templates in vc-hooks.el will also have to change. - -(put 'vc-backend-dispatch 'lisp-indent-function 'defun) - -(defmacro vc-backend-dispatch (f s r c a) - "Execute FORM1, FORM2 or FORM3 depending whether we're using SCCS, RCS, CVS -or ClearCase. -If FORM3 is RCS, use FORM2 even if we are using CVS. (CVS shares some code -with RCS)." - (list 'let (list (list 'type (list 'vc-backend-deduce f))) - (list 'cond - (list (list 'eq 'type (quote 'SCCS)) s) ; SCCS - (list (list 'eq 'type (quote 'RCS)) r) ; RCS - (list (list 'eq 'type (quote 'CVS)) ; CVS - (if (eq c 'RCS) r c)) - (list (list 'eq 'type (quote 'CC)) a) ; CC - ))) - -(defun vc-lock-file (file) - ;; Generate lock file name corresponding to FILE - (let ((master (vc-name file))) - (and - master - (string-match "\\(.*/\\)s\\.\\(.*\\)" master) - (concat - (substring master (match-beginning 1) (match-end 1)) - "p." - (substring master (match-beginning 2) (match-end 2)))))) - - -(defun vc-fetch-properties (file) - ;; Re-fetch all properties associated with the given file. - ;; Currently these properties are: - ;; vc-locking-user - ;; vc-locked-version - ;; vc-latest-version - ;; vc-your-latest-version - ;; vc-cvs-status (cvs only) - ;; vc-cc-predecessor (ClearCase only) - (vc-backend-dispatch - file - ;; SCCS - (progn - (vc-master-info (vc-lock-file file) - (list - "^[^ ]+ [^ ]+ \\([^ ]+\\)" - "^\\([^ ]+\\)") - file - '(vc-locking-user vc-locked-version)) - (vc-master-info (vc-name file) - (list - "^\001d D \\([^ ]+\\)" - (concat "^\001d D \\([^ ]+\\) .* " - (regexp-quote (user-login-name)) " ") - ) - file - '(vc-latest-version vc-your-latest-version)) - ) - ;; RCS - (vc-log-info "rlog" file 'MASTER nil - (list - "^locks: strict\n\t\\([^:]+\\)" - "^locks: strict\n\t[^:]+: \\(.+\\)" - "^revision[\t ]+\\([0-9.]+\\).*\ndate: \\([ /0-9:]+\\);" - (concat - "^revision[\t ]+\\([0-9.]+\\)\n.*author: " - (regexp-quote (user-login-name)) - ";")) - '(vc-locking-user vc-locked-version - vc-latest-version vc-your-latest-version)) - ;; CVS - ;; Don't fetch vc-locking-user and vc-locked-version here, since they - ;; should always be nil anyhow. Don't fetch vc-your-latest-version, since - ;; that is done in vc-find-cvs-master. - (vc-log-info - "cvs" file 'WORKFILE '("status") - ;; CVS 1.3 says "RCS Version:", other releases "RCS Revision:", - ;; and CVS 1.4a1 says "Repository revision:". The regexp below - ;; matches much more, but because of the way vc-log-info is - ;; implemented it is impossible to use additional groups. - '(("\\(RCS Version\\|RCS Revision\\|Repository revision\\):[\t ]+\\([0-9.]+\\)" 2) - "Status: \\(.*\\)") - '(vc-latest-version - vc-cvs-status)) - ;; CC - (vc-log-info "cleartool" file 'WORKFILE '("describe") - (list - "checked out .* by .* (\\([^ .]+\\)..*@.*)" - "from \\([^ ]+\\) (reserved)" - "version [^\"]*\".*@@\\([^ ]+\\)\"" - "version [^\"]*\".*@@\\([^ ]+\\)\"" - "predecessor version: \\([^ ]+\\)\n") - '(vc-locking-user vc-locked-version - vc-latest-version vc-your-latest-version - vc-cc-predecessor)) - )) - -(defun vc-backend-subdirectory-name (&optional file) - ;; Where the master and lock files for the current directory are kept - (let ((backend - (or - (and file (vc-backend-deduce file)) - vc-default-back-end - (setq vc-default-back-end (if (vc-find-binary "rcs") 'RCS 'SCCS))))) - (cond - ((eq backend 'SCCS) "SCCS") - ((eq backend 'RCS) "RCS") - ((eq backend 'CVS) "CVS") - ((eq backend 'CC) "@@")) - )) - (defun vc-backend-admin (file &optional rev comment) ;; Register a file into the version-control system ;; Automatically retrieves a read-only version of the file with @@ -1757,175 +1869,216 @@ (or vc-default-back-end (setq vc-default-back-end (if (vc-find-binary "rcs") 'RCS 'SCCS))) (message "Registering %s..." file) - (let ((backend - (cond + (let ((switches + (if (stringp vc-register-switches) + (list vc-register-switches) + vc-register-switches)) + (backend + (cond ((file-exists-p (vc-backend-subdirectory-name)) vc-default-back-end) ((file-exists-p "RCS") 'RCS) ((file-exists-p "SCCS") 'SCCS) - ((file-exists-p "CVS") 'CVS) - ((file-exists-p "@@") 'CC) + ((file-exists-p "CVS") 'CVS) (t vc-default-back-end)))) (cond ((eq backend 'SCCS) - (vc-do-command 0 "admin" file 'MASTER ; SCCS - (and rev (concat "-r" rev)) - "-fb" - (concat "-i" file) - (and comment (concat "-y" comment)) - (format - (car (rassq 'SCCS vc-master-templates)) - (or (file-name-directory file) "") - (file-name-nondirectory file))) + (apply 'vc-do-command nil 0 "admin" file 'MASTER ;; SCCS + (and rev (concat "-r" rev)) + "-fb" + (concat "-i" file) + (and comment (concat "-y" comment)) + (format + (car (rassq 'SCCS vc-master-templates)) + (or (file-name-directory file) "") + (file-name-nondirectory file)) + switches) (delete-file file) (if vc-keep-workfiles - (vc-do-command 0 "get" file 'MASTER))) + (vc-do-command nil 0 "get" file 'MASTER))) ((eq backend 'RCS) - (vc-do-command 0 "ci" file 'MASTER ; RCS - (concat (if vc-keep-workfiles "-u" "-r") rev) - (and comment (concat "-t-" comment)) - file)) - ((eq backend 'CVS) - ;; #### - should maybe check to see if the master file is - ;; already in the repository...in which case we need to add the - ;; appropriate branch tag and do an update. - ;; #### - note that adding a file is a 2 step process in CVS... - (vc-do-command 0 "cvs" file 'WORKFILE "add") - (vc-do-command 0 "cvs" file 'WORKFILE "commit" - (and comment (not (string= comment "")) - (concat "-m" comment))) - ) - ((eq backend 'CC) - (vc-do-command 0 "cleartool" file 'WORKFILE ; CC - "mkelem" - (if (string-equal "" comment) - "-nc") - (if (not (string-equal "" comment)) - "-c") - (if (not (string-equal "" comment)) - comment) - ) - (vc-do-command 0 "cleartool" file 'WORKFILE - "checkin" "-identical" "-nc" - ) + (apply 'vc-do-command nil 0 "ci" file 'WORKFILE ;; RCS + ;; if available, use the secure registering option + (and (vc-backend-release-p 'RCS "5.6.4") "-i") + (concat (if vc-keep-workfiles "-u" "-r") rev) + (and comment (concat "-t-" comment)) + switches)) + ((eq backend 'CVS) + (apply 'vc-do-command nil 0 "cvs" file 'WORKFILE ;; CVS + "add" + (and comment (string-match "[^\t\n ]" comment) + (concat "-m" comment)) + switches) ))) (message "Registering %s...done" file) ) (defun vc-backend-checkout (file &optional writable rev workfile) ;; Retrieve a copy of a saved version into a workfile - (let ((filename (or workfile file))) + (let ((filename (or workfile file)) + (file-buffer (get-file-buffer file)) + switches) (message "Checking out %s..." filename) (save-excursion - ;; Change buffers to get local value of vc-checkin-switches. - (set-buffer (or (get-file-buffer file) (current-buffer))) - (vc-backend-dispatch - file - ;; SCCS - (if workfile - ;; Some SCCS implementations allow checking out directly to a - ;; file using the -G option, but then some don't so use the - ;; least common denominator approach and use the -p option - ;; ala RCS. - (let ((vc-modes (logior (file-modes (vc-name file)) - (if writable 128 0))) - (failed t)) - (unwind-protect - (progn - (apply 'vc-do-command - 0 "/bin/sh" file 'MASTER "-c" - ;; Some shells make the "" dummy argument into $0 - ;; while others use the shell's name as $0 and - ;; use the "" as $1. The if-statement - ;; converts the latter case to the former. - (format "if [ x\"$1\" = x ]; then shift; fi; \ - umask %o; exec >\"$1\" || exit; \ - shift; umask %o; exec get \"$@\"" - (logand 511 (lognot vc-modes)) - (logand 511 (lognot (default-file-modes)))) - "" ; dummy argument for shell's $0 - filename - (if writable "-e") - "-p" (and rev - (concat "-r" (vc-lookup-triple file rev))) - vc-checkout-switches) - (setq failed nil)) - (and failed (file-exists-p filename) (delete-file filename)))) - (apply 'vc-do-command 0 "get" file 'MASTER ; SCCS - (if writable "-e") - (and rev (concat "-r" (vc-lookup-triple file rev))) - vc-checkout-switches)) - ;; RCS - (if workfile - ;; RCS doesn't let us check out into arbitrary file names directly. - ;; Use `co -p' and make stdout point to the correct file. - (let ((vc-modes (logior (file-modes (vc-name file)) - (if writable 128 0))) - (failed t)) - (unwind-protect - (progn - (apply 'vc-do-command - 0 "/bin/sh" file 'MASTER "-c" - ;; See the SCCS case, above, regarding the - ;; if-statement. - (format "if [ x\"$1\" = x ]; then shift; fi; \ - umask %o; exec >\"$1\" || exit; \ - shift; umask %o; exec co \"$@\"" - (logand 511 (lognot vc-modes)) - (logand 511 (lognot (default-file-modes)))) - "" ; dummy argument for shell's $0 - filename - (if writable "-l") - (concat "-p" rev) - vc-checkout-switches) - (setq failed nil)) - (and failed (file-exists-p filename) (delete-file filename)))) - (apply 'vc-do-command 0 "co" file 'MASTER - (if writable "-l") - (and rev (concat "-r" rev)) - vc-checkout-switches)) - ;; CVS - (if workfile - ;; CVS is much like RCS - (let ((failed t)) - (unwind-protect - (progn - (apply 'vc-do-command - 0 "/bin/sh" file 'WORKFILE "-c" - "exec >\"$1\" || exit; shift; exec cvs update \"$@\"" - "" ; dummy argument for shell's $0 - workfile - (concat "-r" rev) - "-p" - vc-checkout-switches) - (setq failed nil)) - (and failed (file-exists-p filename) (delete-file filename)))) - (apply 'vc-do-command 0 "cvs" file 'WORKFILE - "update" - (and rev (concat "-r" rev)) - file - vc-checkout-switches)) - ;; CC - (if (or rev workfile) - (error "VC's ClearCase support currently checks out /main/LATEST.") - (apply 'vc-do-command 0 "cleartool" file 'WORKFILE - "checkout" "-nc" - vc-checkout-switches)) - )) - (or workfile - (vc-file-setprop file - 'vc-checkout-time (nth 5 (file-attributes file)))) - (message "Checking out %s...done" filename)) - ) + ;; Change buffers to get local value of vc-checkout-switches. + (if file-buffer (set-buffer file-buffer)) + (setq switches (if (stringp vc-checkout-switches) + (list vc-checkout-switches) + vc-checkout-switches)) + ;; Save this buffer's default-directory + ;; and use save-excursion to make sure it is restored + ;; in the same buffer it was saved in. + (let ((default-directory default-directory)) + (save-excursion + ;; Adjust the default-directory so that the check-out creates + ;; the file in the right place. + (setq default-directory (file-name-directory filename)) + (vc-backend-dispatch file + (progn ;; SCCS + (and rev (string= rev "") (setq rev nil)) + (if workfile + ;; Some SCCS implementations allow checking out directly to a + ;; file using the -G option, but then some don't so use the + ;; least common denominator approach and use the -p option + ;; ala RCS. + (let ((vc-modes (logior (file-modes (vc-name file)) + (if writable 128 0))) + (failed t)) + (unwind-protect + (progn + (apply 'vc-do-command + nil 0 "/bin/sh" file 'MASTER "-c" + ;; Some shells make the "" dummy argument into $0 + ;; while others use the shell's name as $0 and + ;; use the "" as $1. The if-statement + ;; converts the latter case to the former. + (format "if [ x\"$1\" = x ]; then shift; fi; \ + umask %o; exec >\"$1\" || exit; \ + shift; umask %o; exec get \"$@\"" + (logand 511 (lognot vc-modes)) + (logand 511 (lognot (default-file-modes)))) + "" ; dummy argument for shell's $0 + filename + (if writable "-e") + "-p" + (and rev + (concat "-r" (vc-lookup-triple file rev))) + switches) + (setq failed nil)) + (and failed (file-exists-p filename) + (delete-file filename)))) + (apply 'vc-do-command nil 0 "get" file 'MASTER ;; SCCS + (if writable "-e") + (and rev (concat "-r" (vc-lookup-triple file rev))) + switches) + (vc-file-setprop file 'vc-workfile-version nil))) + (if workfile ;; RCS + ;; RCS doesn't let us check out into arbitrary file names directly. + ;; Use `co -p' and make stdout point to the correct file. + (let ((vc-modes (logior (file-modes (vc-name file)) + (if writable 128 0))) + (failed t)) + (unwind-protect + (progn + (apply 'vc-do-command + nil 0 "/bin/sh" file 'MASTER "-c" + ;; See the SCCS case, above, regarding the + ;; if-statement. + (format "if [ x\"$1\" = x ]; then shift; fi; \ + umask %o; exec >\"$1\" || exit; \ + shift; umask %o; exec co \"$@\"" + (logand 511 (lognot vc-modes)) + (logand 511 (lognot (default-file-modes)))) + "" ; dummy argument for shell's $0 + filename + (if writable "-l") + (concat "-p" rev) + switches) + (setq failed nil)) + (and failed (file-exists-p filename) (delete-file filename)))) + (let (new-version) + ;; if we should go to the head of the trunk, + ;; clear the default branch first + (and rev (string= rev "") + (vc-do-command nil 0 "rcs" file 'MASTER "-b")) + ;; now do the checkout + (apply 'vc-do-command + nil 0 "co" file 'MASTER + ;; If locking is not strict, force to overwrite + ;; the writable workfile. + (if (eq (vc-checkout-model file) 'implicit) "-f") + (if writable "-l") + (if rev (concat "-r" rev) + ;; if no explicit revision was specified, + ;; check out that of the working file + (let ((workrev (vc-workfile-version file))) + (if workrev (concat "-r" workrev) + nil))) + switches) + ;; determine the new workfile version + (save-excursion + (set-buffer "*vc*") + (goto-char (point-min)) + (setq new-version + (if (re-search-forward "^revision \\([0-9.]+\\).*\n" nil t) + (buffer-substring (match-beginning 1) (match-end 1))))) + (vc-file-setprop file 'vc-workfile-version new-version) + ;; if necessary, adjust the default branch + (and rev (not (string= rev "")) + (vc-do-command nil 0 "rcs" file 'MASTER + (concat "-b" (if (vc-latest-on-branch-p file) + (if (vc-trunk-p new-version) nil + (vc-branch-part new-version)) + new-version)))))) + (if workfile ;; CVS + ;; CVS is much like RCS + (let ((failed t)) + (unwind-protect + (progn + (apply 'vc-do-command + nil 0 "/bin/sh" file 'WORKFILE "-c" + "exec >\"$1\" || exit; shift; exec cvs update \"$@\"" + "" ; dummy argument for shell's $0 + workfile + (concat "-r" rev) + "-p" + switches) + (setq failed nil)) + (and failed (file-exists-p filename) (delete-file filename)))) + ;; default for verbose checkout: clear the sticky tag + ;; so that the actual update will get the head of the trunk + (and rev (string= rev "") + (vc-do-command nil 0 "cvs" file 'WORKFILE "update" "-A")) + ;; If a revision was specified, check that out. + (if rev + (apply 'vc-do-command nil 0 "cvs" file 'WORKFILE + (and writable (eq (vc-checkout-model file) 'manual) "-w") + "update" + (and rev (not (string= rev "")) + (concat "-r" rev)) + switches) + ;; If no revision was specified, simply make the file writable. + (and writable + (or (eq (vc-checkout-model file) 'manual) + (zerop (logand 128 (file-modes file)))) + (set-file-modes file (logior 128 (file-modes file))))) + (if rev (vc-file-setprop file 'vc-workfile-version nil)))) + (cond + ((not workfile) + (vc-file-clear-masterprops file) + (if writable + (vc-file-setprop file 'vc-locking-user (vc-user-login-name))) + (vc-file-setprop file + 'vc-checkout-time (nth 5 (file-attributes file))))) + (message "Checking out %s...done" filename)))))) (defun vc-backend-logentry-check (file) (vc-backend-dispatch file - (if (>= (buffer-size) 512) ; SCCS - (progn - (goto-char 512) - (error - "Log must be less than 512 characters; point is now at pos 512"))) - nil ; RCS - nil ; CVS - nil) ; CC + (if (>= (buffer-size) 512) ;; SCCS + (progn + (goto-char 512) + (error + "Log must be less than 512 characters; point is now at pos 512"))) + nil ;; RCS + nil) ;; CVS ) (defun vc-backend-checkin (file rev comment) @@ -1933,66 +2086,130 @@ ;; Automatically retrieves a read-only version of the file with ;; keywords expanded if vc-keep-workfiles is non-nil, otherwise ;; it deletes the workfile. + ;; Adaptation for RCS branch support: if this is an explicit checkin, + ;; or if the checkin creates a new branch, set the master file branch + ;; accordingly. (message "Checking in %s..." file) + ;; "This log message intentionally left almost blank". + ;; RCS 5.7 gripes about white-space-only comments too. + (or (and comment (string-match "[^\t\n ]" comment)) + (setq comment "*** empty log message ***")) (save-excursion ;; Change buffers to get local value of vc-checkin-switches. (set-buffer (or (get-file-buffer file) (current-buffer))) - (vc-backend-dispatch file - (progn - (apply 'vc-do-command 0 "delta" file 'MASTER - (if rev (concat "-r" rev)) - (concat "-y" comment) - vc-checkin-switches) - (if vc-keep-workfiles - (vc-do-command 0 "get" file 'MASTER)) - ) - (apply 'vc-do-command 0 "ci" file 'MASTER - (concat (if vc-keep-workfiles "-u" "-r") rev) - (if (not (string-equal "" comment)) - (concat "-m" comment)) - vc-checkin-switches) - (progn - (apply 'vc-do-command 0 "cvs" file 'WORKFILE - "ci" - (if (not (string-equal "" comment)) - (concat "-m" comment)) - vc-checkin-switches) - (vc-file-setprop file 'vc-checkout-time - (nth 5 (file-attributes file)))) - (progn - (apply 'vc-do-command 0 "cleartool" file 'WORKFILE - "checkin" "-identical" - (if (string-equal "" comment) - "-nc") - (if (not (string-equal "" comment)) - "-c") - (if (not (string-equal "" comment)) - comment) - vc-checkin-switches) - (vc-file-setprop file 'vc-checkout-time - (nth 5 (file-attributes file)))) - )) - (vc-file-setprop file 'vc-locking-user nil) - (message "Checking in %s...done" file) - ) + (let ((switches + (if (stringp vc-checkin-switches) + (list vc-checkin-switches) + vc-checkin-switches))) + ;; Clear the master-properties. Do that here, not at the + ;; end, because if the check-in fails we want them to get + ;; re-computed before the next try. + (vc-file-clear-masterprops file) + (vc-backend-dispatch file + ;; SCCS + (progn + (apply 'vc-do-command nil 0 "delta" file 'MASTER + (if rev (concat "-r" rev)) + (concat "-y" comment) + switches) + (vc-file-setprop file 'vc-locking-user 'none) + (vc-file-setprop file 'vc-workfile-version nil) + (if vc-keep-workfiles + (vc-do-command nil 0 "get" file 'MASTER)) + ) + ;; RCS + (let ((old-version (vc-workfile-version file)) new-version) + (apply 'vc-do-command nil 0 "ci" file 'MASTER + ;; if available, use the secure check-in option + (and (vc-backend-release-p 'RCS "5.6.4") "-j") + (concat (if vc-keep-workfiles "-u" "-r") rev) + (concat "-m" comment) + switches) + (vc-file-setprop file 'vc-locking-user 'none) + (vc-file-setprop file 'vc-workfile-version nil) + + ;; determine the new workfile version + (set-buffer "*vc*") + (goto-char (point-min)) + (if (or (re-search-forward + "new revision: \\([0-9.]+\\);" nil t) + (re-search-forward + "reverting to previous revision \\([0-9.]+\\)" nil t)) + (progn (setq new-version (buffer-substring (match-beginning 1) + (match-end 1))) + (vc-file-setprop file 'vc-workfile-version new-version))) + + ;; if we got to a different branch, adjust the default + ;; branch accordingly + (cond + ((and old-version new-version + (not (string= (vc-branch-part old-version) + (vc-branch-part new-version)))) + (vc-do-command nil 0 "rcs" file 'MASTER + (if (vc-trunk-p new-version) "-b" + (concat "-b" (vc-branch-part new-version)))) + ;; If this is an old RCS release, we might have + ;; to remove a remaining lock. + (if (not (vc-backend-release-p 'RCS "5.6.2")) + ;; exit status of 1 is also accepted. + ;; It means that the lock was removed before. + (vc-do-command nil 1 "rcs" file 'MASTER + (concat "-u" old-version)))))) + ;; CVS + (progn + ;; explicit check-in to the trunk requires a + ;; double check-in (first unexplicit) (CVS-1.3) + (condition-case nil + (progn + (if (and rev (vc-trunk-p rev)) + (apply 'vc-do-command nil 0 "cvs" file 'WORKFILE + "ci" "-m" "intermediate" + switches)) + (apply 'vc-do-command nil 0 "cvs" file 'WORKFILE + "ci" (if rev (concat "-r" rev)) + (concat "-m" comment) + switches)) + (error (if (eq (vc-cvs-status file) 'needs-merge) + ;; The CVS output will be on top of this message. + (error "Type C-x 0 C-x C-q to merge in changes") + (error "Check-in failed")))) + ;; determine and store the new workfile version + (set-buffer "*vc*") + (goto-char (point-min)) + (if (re-search-forward + "^\\(new\\|initial\\) revision: \\([0-9.]+\\)" nil t) + (vc-file-setprop file 'vc-workfile-version + (buffer-substring (match-beginning 2) + (match-end 2))) + (vc-file-setprop file 'vc-workfile-version nil)) + ;; if this was an explicit check-in, remove the sticky tag + (if rev + (vc-do-command nil 0 "cvs" file 'WORKFILE "update" "-A")) + (vc-file-setprop file 'vc-locking-user 'none) + (vc-file-setprop file 'vc-checkout-time + (nth 5 (file-attributes file))))))) + (message "Checking in %s...done" file)) (defun vc-backend-revert (file) ;; Revert file to latest checked-in version. + ;; (for RCS, to workfile version) (message "Reverting %s..." file) + (vc-file-clear-masterprops file) (vc-backend-dispatch - file - (progn ; SCCS - (vc-do-command 0 "unget" file 'MASTER nil) - (vc-do-command 0 "get" file 'MASTER nil)) - (vc-do-command 0 "co" file 'MASTER ; RCS. This deletes the work file. - "-f" "-u") - (progn ; CVS - (delete-file file) - (vc-do-command 0 "cvs" file 'WORKFILE "update")) - (vc-do-command 0 "cleartool" file 'WORKFILE ; CC - "unco" "-rm") - ) - (vc-file-setprop file 'vc-locking-user nil) + file + ;; SCCS + (progn + (vc-do-command nil 0 "unget" file 'MASTER nil) + (vc-do-command nil 0 "get" file 'MASTER nil)) + ;; RCS + (vc-do-command nil 0 "co" file 'MASTER + "-f" (concat "-u" (vc-workfile-version file))) + ;; CVS + (progn + (delete-file file) + (vc-do-command nil 0 "cvs" file 'WORKFILE "update"))) + (vc-file-setprop file 'vc-locking-user 'none) + (vc-file-setprop file 'vc-checkout-time (nth 5 (file-attributes file))) (message "Reverting %s...done" file) ) @@ -2000,124 +2217,131 @@ ;; Steal the lock on the current workfile. Needs RCS 5.6.2 or later for -M. (message "Stealing lock on %s..." file) (vc-backend-dispatch file - (progn ; SCCS - (vc-do-command 0 "unget" file 'MASTER "-n" (if rev (concat "-r" rev))) - (vc-do-command 0 "get" file 'MASTER "-g" (if rev (concat "-r" rev))) - ) - (vc-do-command 0 "rcs" file 'MASTER ; RCS - "-M" (concat "-u" rev) (concat "-l" rev)) - (error "You cannot steal a CVS lock; there are no CVS locks to steal.") ; CVS - (error "VC's ClearCase support cannot steal locks.") ; CC - ) - (vc-file-setprop file 'vc-locking-user (user-login-name)) + (progn ;SCCS + (vc-do-command nil 0 "unget" file 'MASTER "-n" (if rev (concat "-r" rev))) + (vc-do-command nil 0 "get" file 'MASTER "-g" (if rev (concat "-r" rev))) + ) + (vc-do-command nil 0 "rcs" file 'MASTER ;RCS + "-M" (concat "-u" rev) (concat "-l" rev)) + (error "You cannot steal a CVS lock; there are no CVS locks to steal") ;CVS + ) + (vc-file-setprop file 'vc-locking-user (vc-user-login-name)) (message "Stealing lock on %s...done" file) ) (defun vc-backend-uncheck (file target) - ;; Undo the latest checkin. Note: this code will have to get a lot - ;; smarter when we support multiple branches. + ;; Undo the latest checkin. (message "Removing last change from %s..." file) (vc-backend-dispatch file - (vc-do-command 0 "rmdel" file 'MASTER (concat "-r" target)) - (vc-do-command 0 "rcs" file 'MASTER (concat "-o" target)) - (error "Unchecking files under CVS is dangerous and not supported in VC.") - (error "VC's ClearCase support cannot cancel checkins.") - ) + (vc-do-command nil 0 "rmdel" file 'MASTER (concat "-r" target)) + (vc-do-command nil 0 "rcs" file 'MASTER (concat "-o" target)) + nil ;; this is never reached under CVS + ) (message "Removing last change from %s...done" file) ) (defun vc-backend-print-log (file) - ;; Print change log associated with FILE to buffer *vc*. + ;; Get change log associated with FILE. (vc-backend-dispatch - file - (vc-do-command 0 "prs" file 'MASTER) - (vc-do-command 0 "rlog" file 'MASTER) - (vc-do-command 0 "cvs" file 'WORKFILE "log") - (vc-do-command 0 "cleartool" file 'WORKFILE "lshistory"))) + file + (vc-do-command nil 0 "prs" file 'MASTER) + (vc-do-command nil 0 "rlog" file 'MASTER) + (vc-do-command nil 0 "cvs" file 'WORKFILE "log"))) (defun vc-backend-assign-name (file name) ;; Assign to a FILE's latest version a given NAME. (vc-backend-dispatch file - (vc-add-triple name file (vc-latest-version file)) ; SCCS - (vc-do-command 0 "rcs" file 'MASTER (concat "-n" name ":")) ; RCS - (vc-do-command 0 "cvs" file 'WORKFILE "tag" name) ; CVS - (vc-do-command 0 "cleartool" file 'WORKFILE ; CC - "mklabel" "-replace" "-nc" name) - ) + (vc-add-triple name file (vc-latest-version file)) ;; SCCS + (vc-do-command nil 0 "rcs" file 'MASTER (concat "-n" name ":")) ;; RCS + (vc-do-command nil 0 "cvs" file 'WORKFILE "tag" name) ;; CVS + ) ) (defun vc-backend-diff (file &optional oldvers newvers cmp) ;; Get a difference report between two versions of FILE. ;; Get only a brief comparison report if CMP, a difference report otherwise. - (let ((backend (vc-backend-deduce file))) + (let ((backend (vc-backend file)) options status + (diff-switches-list (if (listp diff-switches) + diff-switches + (list diff-switches)))) (cond ((eq backend 'SCCS) (setq oldvers (vc-lookup-triple file oldvers)) - (setq newvers (vc-lookup-triple file newvers)))) - (cond - ;; SCCS and RCS shares a lot of code. - ((or (eq backend 'SCCS) (eq backend 'RCS)) - (let* ((command (if (eq backend 'SCCS) - "vcdiff" - "rcsdiff")) - (mode (if (eq backend 'RCS) 'WORKFILE 'MASTER)) - (options (append (list (and cmp "--brief") - "-q" - (and oldvers (concat "-r" oldvers)) - (and newvers (concat "-r" newvers))) - (and (not cmp) - (if (listp diff-switches) - diff-switches - (list diff-switches))))) - (status (apply 'vc-do-command 2 command file mode options))) - ;; Some RCS versions don't understand "--brief"; work around this. - (if (eq status 2) - (apply 'vc-do-command 1 command file 'WORKFILE - (if cmp (cdr options) options)) - status))) + (setq newvers (vc-lookup-triple file newvers)) + (setq options (append (list (and cmp "--brief") "-q" + (and oldvers (concat "-r" oldvers)) + (and newvers (concat "-r" newvers))) + (and (not cmp) diff-switches-list))) + (apply 'vc-do-command "*vc-diff*" 1 "vcdiff" file 'MASTER options)) + ((eq backend 'RCS) + (if (not oldvers) (setq oldvers (vc-workfile-version file))) + ;; If we know that --brief is not supported, don't try it. + (setq cmp (and cmp (not (eq vc-rcsdiff-knows-brief 'no)))) + (setq options (append (list (and cmp "--brief") "-q" + (concat "-r" oldvers) + (and newvers (concat "-r" newvers))) + (and (not cmp) diff-switches-list))) + (setq status (apply 'vc-do-command "*vc-diff*" 2 + "rcsdiff" file 'WORKFILE options)) + ;; If --brief didn't work, do a double-take and remember it + ;; for the future. + (if (eq status 2) + (prog1 + (apply 'vc-do-command "*vc-diff*" 1 "rcsdiff" file 'WORKFILE + (if cmp (cdr options) options)) + (if cmp (setq vc-rcsdiff-knows-brief 'no))) + ;; If --brief DID work, remember that, too. + (and cmp (not vc-rcsdiff-knows-brief) + (setq vc-rcsdiff-knows-brief 'yes)) + status)) ;; CVS is different. - ;; cmp is not yet implemented -- we always do a full diff. ((eq backend 'CVS) - (if (string= (vc-file-getprop file 'vc-your-latest-version) "0") ; CVS + (if (string= (vc-workfile-version file) "0") ;; This file is added but not yet committed; there is no master file. - ;; diff it against /dev/null. (if (or oldvers newvers) - (error "No revisions of %s exists" file) - (apply 'vc-do-command - 1 "diff" file 'WORKFILE "/dev/null" - (if (listp diff-switches) - diff-switches - (list diff-switches)))) + (error "No revisions of %s exist" file) + (if cmp 1 ;; file is added but not committed, + ;; we regard this as "changed". + ;; diff it against /dev/null. + (apply 'vc-do-command + "*vc-diff*" 1 "diff" file 'WORKFILE + (append (if (listp diff-switches) + diff-switches + (list diff-switches)) '("/dev/null"))))) + ;; cmp is not yet implemented -- we always do a full diff. (apply 'vc-do-command - 1 "cvs" file 'WORKFILE "diff" + "*vc-diff*" 1 "cvs" file 'WORKFILE "diff" (and oldvers (concat "-r" oldvers)) (and newvers (concat "-r" newvers)) (if (listp diff-switches) - diff-switches - (list diff-switches))))) - ;; ClearCase is completely different. - ((eq backend 'CC) - (apply 'vc-do-command 2 "cleardiff" file nil - (if cmp "-status_only") - (concat file "@@" - (or oldvers - (vc-file-getprop file 'vc-cc-predecessor))) - (if newvers - (concat file "@@" newvers) - file) - nil)) + diff-switches + (list diff-switches))))) (t (vc-registration-error file))))) (defun vc-backend-merge-news (file) ;; Merge in any new changes made to FILE. - (vc-backend-dispatch - file - (error "vc-backend-merge-news not meaningful for SCCS files") ; SCCS - (error "vc-backend-merge-news not meaningful for RCS files") ; RCS - (vc-do-command 1 "cvs" file 'WORKFILE "update") ; CVS - (error "vc-backend-merge-news not meaningful for ClearCase files") ; CC - )) + (message "Merging changes into %s..." file) + (prog1 + (vc-backend-dispatch + file + (error "vc-backend-merge-news not meaningful for SCCS files") ;SCCS + (error "vc-backend-merge-news not meaningful for RCS files") ;RCS + (save-excursion ; CVS + (vc-file-clear-masterprops file) + (vc-file-setprop file 'vc-workfile-version nil) + (vc-file-setprop file 'vc-locking-user nil) + (vc-do-command nil 0 "cvs" file 'WORKFILE "update") + ;; CVS doesn't return an error code if conflicts are detected. + ;; Since we want to warn the user about it (and possibly start + ;; emerge later), scan the output and see if this occurred. + (set-buffer (get-buffer "*vc*")) + (goto-char (point-min)) + (if (re-search-forward "^cvs update: conflicts found in .*" nil t) + 1 ;; error code for caller + 0 ;; no conflict detected + ))) + (message "Merging changes into %s...done" file))) (defun vc-check-headers () "Check if the current file has any headers in it." @@ -2125,74 +2349,73 @@ (save-excursion (goto-char (point-min)) (vc-backend-dispatch buffer-file-name - (re-search-forward "%[MIRLBSDHTEGUYFPQCZWA]%" nil t) ; SCCS - (re-search-forward "\\$[A-Za-z\300-\326\330-\366\370-\377]+\\(: [\t -#%-\176\240-\377]*\\)?\\$" nil t) ; RCS - 'RCS ; CVS works like RCS in this regard. - nil ; ClearCase does not recognise headers. - ) + (re-search-forward "%[MIRLBSDHTEGUYFPQCZWA]%" nil t) ;; SCCS + (re-search-forward "\\$[A-Za-z\300-\326\330-\366\370-\377]+\\(: [\t -#%-\176\240-\377]*\\)?\\$" nil t) ;; RCS + 'RCS ;; CVS works like RCS in this regard. + ) )) ;; Back-end-dependent stuff ends here. ;; Set up key bindings for use while editing log messages -(defun vc-log-mode () +(defun vc-log-mode (&optional file) "Minor mode for driving version-control tools. These bindings are added to the global keymap when you enter this mode: -\\[vc-next-action] perform next logical version-control operation on current file -\\[vc-register] register current file -\\[vc-toggle-read-only] like next-action, but won't register files -\\[vc-insert-headers] insert version-control headers in current file -\\[vc-print-log] display change history of current file -\\[vc-revert-buffer] revert buffer to latest version -\\[vc-cancel-version] undo latest checkin -\\[vc-diff] show diffs between file versions -\\[vc-version-other-window] visit old version in another window -\\[vc-directory] show all files locked by any user in or below . -\\[vc-update-change-log] add change log entry from recent checkins +\\[vc-next-action] perform next logical version-control operation on current file +\\[vc-register] register current file +\\[vc-toggle-read-only] like next-action, but won't register files +\\[vc-insert-headers] insert version-control headers in current file +\\[vc-print-log] display change history of current file +\\[vc-revert-buffer] revert buffer to latest version +\\[vc-cancel-version] undo latest checkin +\\[vc-diff] show diffs between file versions +\\[vc-version-other-window] visit old version in another window +\\[vc-directory] show all files locked by any user in or below . +\\[vc-update-change-log] add change log entry from recent checkins While you are entering a change log message for a version, the following additional bindings will be in effect. -\\[vc-finish-logentry] proceed with check in, ending log message entry +\\[vc-finish-logentry] proceed with check in, ending log message entry Whenever you do a checkin, your log comment is added to a ring of saved comments. These can be recalled as follows: -\\[vc-next-comment] replace region with next message in comment ring -\\[vc-previous-comment] replace region with previous message in comment ring -\\[vc-comment-search-reverse] search backward for regexp in the comment ring -\\[vc-comment-search-forward] search backward for regexp in the comment ring +\\[vc-next-comment] replace region with next message in comment ring +\\[vc-previous-comment] replace region with previous message in comment ring +\\[vc-comment-search-reverse] search backward for regexp in the comment ring +\\[vc-comment-search-forward] search backward for regexp in the comment ring Entry to the change-log submode calls the value of text-mode-hook, then the value of vc-log-mode-hook. Global user options: - vc-initial-comment If non-nil, require user to enter a change - comment upon first checkin of the file. + vc-initial-comment If non-nil, require user to enter a change + comment upon first checkin of the file. - vc-keep-workfiles Non-nil value prevents workfiles from being - deleted when changes are checked in + vc-keep-workfiles Non-nil value prevents workfiles from being + deleted when changes are checked in - vc-suppress-confirm Suppresses some confirmation prompts, - notably for reversions. + vc-suppress-confirm Suppresses some confirmation prompts, + notably for reversions. - vc-header-alist Which keywords to insert when adding headers - with \\[vc-insert-headers]. Defaults to - '(\"\%\W\%\") under SCCS, '(\"\$Id\$\") under - RCS and CVS. + vc-header-alist Which keywords to insert when adding headers + with \\[vc-insert-headers]. Defaults to + '(\"\%\W\%\") under SCCS, '(\"\$Id\$\") under + RCS and CVS. - vc-static-header-alist By default, version headers inserted in C files - get stuffed in a static string area so that - ident(RCS/CVS) or what(SCCS) can see them in - the compiled object code. You can override - this by setting this variable to nil, or change - the header template by changing it. + vc-static-header-alist By default, version headers inserted in C files + get stuffed in a static string area so that + ident(RCS/CVS) or what(SCCS) can see them in + the compiled object code. You can override + this by setting this variable to nil, or change + the header template by changing it. - vc-command-messages if non-nil, display run messages from the - actual version-control utilities (this is - intended primarily for people hacking vc - itself). + vc-command-messages if non-nil, display run messages from the + actual version-control utilities (this is + intended primarily for people hacking vc + itself). " (interactive) (set-syntax-table text-mode-syntax-table) @@ -2201,18 +2424,18 @@ (setq major-mode 'vc-log-mode) (setq mode-name "VC-Log") (make-local-variable 'vc-log-file) + (setq vc-log-file file) (make-local-variable 'vc-log-version) (make-local-variable 'vc-comment-ring-index) (set-buffer-modified-p nil) (setq buffer-file-name nil) (run-hooks 'text-mode-hook 'vc-log-mode-hook) - ) +) ;; Initialization code, to be done just once at load-time (if vc-log-entry-mode nil (setq vc-log-entry-mode (make-sparse-keymap)) - (set-keymap-name vc-log-entry-mode 'vc-log-entry-mode) ; XEmacs (define-key vc-log-entry-mode "\M-n" 'vc-next-comment) (define-key vc-log-entry-mode "\M-p" 'vc-previous-comment) (define-key vc-log-entry-mode "\M-r" 'vc-comment-search-reverse) @@ -2222,16 +2445,16 @@ ;;; These things should probably be generally available -(defun vc-file-tree-walk (func &rest args) - "Walk recursively through default directory. +(defun vc-file-tree-walk (dirname func &rest args) + "Walk recursively through DIRNAME. Invoke FUNC f ARGS on each non-directory file f underneath it." - (vc-file-tree-walk-internal default-directory func args) - (message "Traversing directory %s...done" default-directory)) + (vc-file-tree-walk-internal (expand-file-name dirname) func args) + (message "Traversing directory %s...done" dirname)) (defun vc-file-tree-walk-internal (file func args) (if (not (file-directory-p file)) (apply func file args) - (message "Traversing directory %s..." file) + (message "Traversing directory %s..." (abbreviate-file-name file)) (let ((dir (file-name-as-directory file))) (mapcar (function @@ -2240,27 +2463,19 @@ (string-equal f "..") (member f vc-directory-exclusion-list) (let ((dirf (concat dir f))) - (or - (file-symlink-p dirf) ; Avoid possible loops - (vc-file-tree-walk-internal dirf func args)))))) + (or + (file-symlink-p dirf) ;; Avoid possible loops + (vc-file-tree-walk-internal dirf func args)))))) (directory-files dir))))) -(defun vc-dir-all-files (func &rest args) - "Invoke FUNC f ARGS on each regular file f in default directory." - (let ((dir default-directory)) - (message "Scanning directory %s..." dir) - (mapcar (function (lambda (f) - (let ((dirf (expand-file-name f dir))) - (if (not (file-directory-p dirf)) - (apply func dirf args))))) - (directory-files dir)) - (message "Scanning directory %s...done" dir))) - (provide 'vc) ;;; DEVELOPER'S NOTES ON CONCURRENCY PROBLEMS IN THIS CODE ;;; ;;; These may be useful to anyone who has to debug or extend the package. +;;; (Note that this information corresponds to versions 5.x. Some of it +;;; might have been invalidated by the additions to support branching +;;; and RCS keyword lookup. AS, 1995/03/24) ;;; ;;; A fundamental problem in VC is that there are time windows between ;;; vc-next-action's computations of the file's version-control state and @@ -2283,7 +2498,7 @@ ;;; during the entire execution of vc-next-action, or (b) detect and ;;; recover from errors resulting from dispatch on an out-of-date state. ;;; -;;; Alternative (a) appears to be unfeasible. The problem is that we can't +;;; Alternative (a) appears to be infeasible. The problem is that we can't ;;; guarantee that the lock will ever be removed. Suppose a user starts a ;;; checkin, the change message buffer pops up, and the user, having wandered ;;; off to do something else, simply forgets about it? @@ -2324,7 +2539,7 @@ ;;; B 5 . 6 7 8 co -l get -e checkout ;;; C 9 10 . 11 12 co -u unget; get revert ;;; D 13 14 15 . 16 ci -u -m<comment> delta -y<comment>; get checkin -;;; E 17 18 19 20 . rcs -u -M ; rcs -l unget -n ; get -g steal lock +;;; E 17 18 19 20 . rcs -u -M -l unget -n ; get -g steal lock ;;; ;;; All commands take the master file name as a last argument (not shown). ;;; @@ -2382,7 +2597,9 @@ ;;; Potential cause: someone else's admin during window P, with ;;; caller's admin happening before their checkout. ;;; -;;; RCS: ci will fail with a "no lock set by <user>" message. +;;; RCS: Prior to version 5.6.4, ci fails with message +;;; "no lock set by <user>". From 5.6.4 onwards, VC uses the new +;;; ci -i option and the message is "<file>,v: already exists". ;;; SCCS: admin will fail with error (ad19). ;;; ;;; We can let these errors be passed up to the user. @@ -2391,7 +2608,9 @@ ;;; ;;; Potential cause: self-race during window P. ;;; -;;; RCS: will revert the file to the last saved version and unlock it. +;;; RCS: Prior to version 5.6.4, reverts the file to the last saved +;;; version and unlocks it. From 5.6.4 onwards, VC uses the new +;;; ci -i option, failing with message "<file>,v: already exists". ;;; SCCS: will fail with error (ad19). ;;; ;;; Either of these consequences is acceptable. @@ -2400,8 +2619,10 @@ ;;; ;;; Potential cause: self-race during window P. ;;; -;;; RCS: will register the caller's workfile as a delta with a -;;; null change comment (the -t- switch will be ignored). +;;; RCS: Prior to version 5.6.4, VC registers the caller's workfile as +;;; a delta with a null change comment (the -t- switch will be +;;; ignored). From 5.6.4 onwards, VC uses the new ci -i option, +;;; failing with message "<file>,v: already exists". ;;; SCCS: will fail with error (ad19). ;;; ;;; 4. File looked unregistered but is locked by someone else. @@ -2409,7 +2630,10 @@ ;;; Potential cause: someone else's admin during window P, with ;;; caller's admin happening *after* their checkout. ;;; -;;; RCS: will fail with a "no lock set by <user>" message. +;;; RCS: Prior to version 5.6.4, ci fails with a +;;; "no lock set by <user>" message. From 5.6.4 onwards, +;;; VC uses the new ci -i option, failing with message +;;; "<file>,v: already exists". ;;; SCCS: will fail with error (ad19). ;;; ;;; We can let these errors be passed up to the user. @@ -2497,11 +2721,13 @@ ;;; ;;; Potential cause: master file got nuked during window P. ;;; -;;; RCS: Checks in the user's version as an initial delta. +;;; RCS: Prior to version 5.6.4, checks in the user's version as an +;;; initial delta. From 5.6.4 onwards, VC uses the new ci -j +;;; option, failing with message "no such file or directory". ;;; SCCS: will fail with error ut4. ;;; -;;; This case is kind of nasty. It means VC may fail to detect the -;;; loss of previous version information. +;;; This case is kind of nasty. Under RCS prior to version 5.6.4, +;;; VC may fail to detect the loss of previous version information. ;;; ;;; 14. File looks like it's locked by the calling user and changed, but it's ;;; actually unlocked. @@ -2568,7 +2794,7 @@ ;;; ;;; In order of decreasing severity: ;;; -;;; Cases 11 and 15 under RCS are the only one that potentially lose work. +;;; Cases 11 and 15 are the only ones that potentially lose work. ;;; They would require a self-race for this to happen. ;;; ;;; Case 13 in RCS loses information about previous deltas, retaining