User: scop Date: 06/08/16 22:44:36 Modified: packages/unsupported/scop/vc ChangeLog Makefile package-info.in vc-arch.el vc.el Added: packages/unsupported/scop/vc smerge-mode.el Log: Bring in smerge-mode.el. Revision Changes Path 1.68 +2 -1 XEmacs/packages/unsupported/scop/STATUS Index: STATUS =================================================================== RCS file: /pack/xemacscvs/XEmacs/packages/unsupported/scop/STATUS,v retrieving revision 1.67 retrieving revision 1.68 diff -u -p -r1.67 -r1.68 --- STATUS 2006/08/05 09:16:30 1.67 +++ STATUS 2006/08/16 20:44:29 1.68 ＠＠ -17,5 +17,6 ＠＠ generic-modes: generic.el and generic-x. - Compiles, seems to work, auto-mode-alist and autoloads may need spanking. vc: vc*.el and a few other related files from GNU Emacs, vc-git.el from git -- Up to date with GNU Emacs CVS HEAD, git upstream as of 2006-08-05. +- Up to date with GNU Emacs CVS HEAD, git upstream as of 2006-08-16. - Approaching usable state. +- smerge-mode.el needs work. 1.61 +4 -0 XEmacs/packages/unsupported/scop/vc/ChangeLog Index: ChangeLog =================================================================== RCS file: /pack/xemacscvs/XEmacs/packages/unsupported/scop/vc/ChangeLog,v retrieving revision 1.60 retrieving revision 1.61 diff -u -p -r1.60 -r1.61 --- ChangeLog 2006/08/15 11:29:26 1.60 +++ ChangeLog 2006/08/16 20:44:34 1.61 ＠＠ -1,3 +1,7 ＠＠ +2006-08-16 Ville Skyttä <scop(a)xemacs.org&gt; + + * smerge-mode.el: New from GNU Emacs CVS. Needs work. + 2006-08-15 Ville Skyttä <scop(a)xemacs.org&gt; * vc-git.el (vc-git-registered): Avoid failures if `git' is not 1.11 +4 -2 XEmacs/packages/unsupported/scop/vc/Makefile Index: Makefile =================================================================== RCS file: /pack/xemacscvs/XEmacs/packages/unsupported/scop/vc/Makefile,v retrieving revision 1.10 retrieving revision 1.11 diff -u -p -r1.10 -r1.11 --- Makefile 2006/07/04 21:55:05 1.10 +++ Makefile 2006/08/16 20:44:35 1.11 ＠＠ -22,10 +22,12 ＠＠ AUTHOR_VERSION = MAINTAINER = Ville Skyttä <scop(a)xemacs.org&gt; PACKAGE = vc PKG_TYPE = regular -REQUIRES = dired xemacs-base vc mail-lib ediff sh-script pcl-cvs tramp +REQUIRES = dired xemacs-base vc mail-lib ediff sh-script pcl-cvs tramp \ + prog-modes CATEGORY = unsupported ELCS = vc-hooks.elc vc.elc vc-arch.elc vc-cvs.elc vc-git.elc vc-mcvs.elc \ - vc-rcs.elc vc-sccs.elc vc-svn.elc vc-xemacs.elc log-edit.elc + vc-rcs.elc vc-sccs.elc vc-svn.elc vc-xemacs.elc log-edit.elc \ + smerge-mode.elc include ../../../XEmacs.rules 1.6 +1 -1 XEmacs/packages/unsupported/scop/vc/package-info.in Index: package-info.in =================================================================== RCS file: /pack/xemacscvs/XEmacs/packages/unsupported/scop/vc/package-info.in,v retrieving revision 1.5 retrieving revision 1.6 diff -u -p -r1.5 -r1.6 --- package-info.in 2006/07/04 21:52:23 1.5 +++ package-info.in 2006/08/16 20:44:35 1.6 ＠＠ -13,7 +13,7 ＠＠ filename FILENAME md5sum MD5SUM size SIZE - provides (vc vc-hooks vc-arch vc-cvs vc-git vc-mcvs vc-rcs vc-sccs vc-svn vc-xemacs log-edit) + provides (vc vc-hooks vc-arch vc-cvs vc-git vc-mcvs vc-rcs vc-sccs vc-svn vc-xemacs log-edit smerge-mode) requires (REQUIRES) type regular )) 1.15 +0 -1 XEmacs/packages/unsupported/scop/vc/vc-arch.el Index: vc-arch.el =================================================================== RCS file: /pack/xemacscvs/XEmacs/packages/unsupported/scop/vc/vc-arch.el,v retrieving revision 1.14 retrieving revision 1.15 diff -u -p -r1.14 -r1.15 --- vc-arch.el 2006/02/10 23:25:42 1.14 +++ vc-arch.el 2006/08/16 20:44:35 1.15 ＠＠ -343,7 +343,6 ＠＠ Return non-nil if FILE is unchanged." (if (not (re-search-forward "^<<<<<<< " nil t)) ;; The .rej file is obsolete. (condition-case nil (delete-file rej) (error nil)) - ;; XEmacs TODO: we don't have smerge-mode (smerge-mode 1) (add-hook 'after-save-hook 'vc-arch-delete-rej-if-obsolete nil t) 1.35 +0 -1 XEmacs/packages/unsupported/scop/vc/vc.el Index: vc.el =================================================================== RCS file: /pack/xemacscvs/XEmacs/packages/unsupported/scop/vc/vc.el,v retrieving revision 1.34 retrieving revision 1.35 diff -u -p -r1.34 -r1.35 --- vc.el 2006/08/05 09:16:34 1.34 +++ vc.el 2006/08/16 20:44:35 1.35 ＠＠ -2093,7 +2093,6 ＠＠ See Info node `Merging'." (defun vc-maybe-resolve-conflicts (file status &optional name-A name-B) (vc-resynch-buffer file t (not (buffer-modified-p))) (if (zerop status) (message "Merge successful") - ;; XEmacs TODO: we don't have smerge-mode (smerge-mode 1) (message "File contains conflicts."))) 1.1 XEmacs/packages/unsupported/scop/vc/smerge-mode.el Index: smerge-mode.el =================================================================== ;;; smerge-mode.el --- Minor mode to resolve diff3 conflicts ;; Copyright (C) 1999, 2000, 2001, 2002, 2003, ;; 2004, 2005, 2006 Free Software Foundation, Inc. ;; Author: Stefan Monnier <monnier(a)iro.umontreal.ca&gt; ;; Keywords: tools revision-control merge diff3 cvs conflict ;; This file is part of GNU Emacs. ;; 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. ;; 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 GNU Emacs; see the file COPYING. If not, write to the ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, ;; Boston, MA 02110-1301, USA. ;;; Commentary: ;; Provides a lightweight alternative to emerge/ediff. ;; To use it, simply add to your .emacs the following lines: ;; ;; (autoload 'smerge-mode "smerge-mode" nil t) ;; ;; you can even have it turned on automatically with the following ;; piece of code in your .emacs: ;; ;; (defun sm-try-smerge () ;; (save-excursion ;; (goto-char (point-min)) ;; (when (re-search-forward "^<<<<<<< " nil t) ;; (smerge-mode 1)))) ;; (add-hook 'find-file-hook 'sm-try-smerge t) ;;; Todo: ;; - if requested, ask the user whether he wants to call ediff right away ;;; Code: (require 'vc-xemacs) ; XEmacs compatibility stuff (eval-when-compile (require 'cl)) ;;; The real definition comes later. (defvar smerge-mode) (defgroup smerge () "Minor mode to highlight and resolve diff3 conflicts." :group 'tools :prefix "smerge-") (defcustom smerge-diff-buffer-name "*vc-diff*" "Buffer name to use for displaying diffs." :group 'smerge :type '(choice (const "*vc-diff*") (const "*cvs-diff*") (const "*smerge-diff*") string)) (defcustom smerge-diff-switches (append '("-d" "-b") (if (listp diff-switches) diff-switches (list diff-switches))) "A list of strings specifying switches to be passed to diff. Used in `smerge-diff-base-mine' and related functions." :group 'smerge :type '(repeat string)) (defcustom smerge-auto-leave t "Non-nil means to leave `smerge-mode' when the last conflict is resolved." :group 'smerge :type 'boolean) (defface smerge-mine '((((min-colors 88) (background light)) (:foreground "blue1")) (((background light)) (:foreground "blue")) (((min-colors 88) (background dark)) (:foreground "cyan1")) (((background dark)) (:foreground "cyan"))) "Face for your code." :group 'smerge) ;; backward-compatibility alias (put 'smerge-mine-face 'face-alias 'smerge-mine) (defvar smerge-mine-face 'smerge-mine) (defface smerge-other '((((background light)) (:foreground "darkgreen")) (((background dark)) (:foreground "lightgreen"))) "Face for the other code." :group 'smerge) ;; backward-compatibility alias (put 'smerge-other-face 'face-alias 'smerge-other) (defvar smerge-other-face 'smerge-other) (defface smerge-base '((((min-colors 88) (background light)) (:foreground "red1")) (((background light)) (:foreground "red")) (((background dark)) (:foreground "orange"))) "Face for the base code." :group 'smerge) ;; backward-compatibility alias (put 'smerge-base-face 'face-alias 'smerge-base) (defvar smerge-base-face 'smerge-base) (defface smerge-markers '((((background light)) (:background "grey85")) (((background dark)) (:background "grey30"))) "Face for the conflict markers." :group 'smerge) ;; backward-compatibility alias (put 'smerge-markers-face 'face-alias 'smerge-markers) (defvar smerge-markers-face 'smerge-markers) (defface smerge-refined-change ;; XEmacs change: need list here '((t (:background "yellow"))) "Face used for char-based changes shown by `smerge-refine'." :group 'smerge) (easy-mmode-defmap smerge-basic-map `(("n" . smerge-next) ("p" . smerge-prev) ("r" . smerge-resolve) ("a" . smerge-keep-all) ("b" . smerge-keep-base) ("o" . smerge-keep-other) ("m" . smerge-keep-mine) ("E" . smerge-ediff) ("C" . smerge-combine-with-next) ("R" . smerge-refine) ("\C-m" . smerge-keep-current) ("=" . ,(make-sparse-keymap "Diff")) ("=<" "base-mine" . smerge-diff-base-mine) ("=>" "base-other" . smerge-diff-base-other) ("==" "mine-other" . smerge-diff-mine-other)) "The base keymap for `smerge-mode'.") (defcustom smerge-command-prefix "\C-c^" "Prefix for `smerge-mode' commands." :group 'smerge :type '(choice (string "\e") (string "\C-c^") (string "") string)) (easy-mmode-defmap smerge-mode-map `((,smerge-command-prefix . ,smerge-basic-map)) "Keymap for `smerge-mode'.") (defvar smerge-check-cache nil) (make-variable-buffer-local 'smerge-check-cache) (defun smerge-check (n) (condition-case nil (let ((state (cons (point) (buffer-modified-tick)))) (unless (equal (cdr smerge-check-cache) state) (smerge-match-conflict) (setq smerge-check-cache (cons (match-data) state))) (nth (* 2 n) (car smerge-check-cache))) (error nil))) (easy-menu-define smerge-mode-menu smerge-mode-map "Menu for `smerge-mode'." '("SMerge" ["Next" smerge-next :help "Go to next conflict"] ["Previous" smerge-prev :help "Go to previous conflict"] "--" ["Keep All" smerge-keep-all :help "Keep all three versions" :active (smerge-check 1)] ["Keep Current" smerge-keep-current :help "Use current (at point) version" :active (and (smerge-check 1) (> (smerge-get-current) 0))] "--" ["Revert to Base" smerge-keep-base :help "Revert to base version" :active (smerge-check 2)] ["Keep Other" smerge-keep-other :help "Keep `other' version" :active (smerge-check 3)] ["Keep Yours" smerge-keep-mine :help "Keep your version" :active (smerge-check 1)] "--" ["Diff Base/Mine" smerge-diff-base-mine :help "Diff `base' and `mine' for current conflict" :active (smerge-check 2)] ["Diff Base/Other" smerge-diff-base-other :help "Diff `base' and `other' for current conflict" :active (smerge-check 2)] ["Diff Mine/Other" smerge-diff-mine-other :help "Diff `mine' and `other' for current conflict" :active (smerge-check 1)] "--" ["Invoke Ediff" smerge-ediff :help "Use Ediff to resolve the conflicts" :active (smerge-check 1)] ["Auto Resolve" smerge-resolve :help "Try auto-resolution heuristics" :active (smerge-check 1)] ["Combine" smerge-combine-with-next :help "Combine current conflict with next" :active (smerge-check 1)] )) (easy-menu-define smerge-context-menu nil "Context menu for mine area in `smerge-mode'." '(nil ["Keep Current" smerge-keep-current :help "Use current (at point) version"] ["Kill Current" smerge-kill-current :help "Remove current (at point) version"] ["Keep All" smerge-keep-all :help "Keep all three versions"] "---" ["More..." (popup-menu smerge-mode-menu) :help "Show full SMerge mode menu"] )) (defconst smerge-font-lock-keywords '((smerge-find-conflict (1 smerge-mine-face prepend t) (2 smerge-base-face prepend t) (3 smerge-other-face prepend t) ;; FIXME: `keep' doesn't work right with syntactic fontification. (0 smerge-markers-face keep) (4 nil t t) (5 nil t t))) "Font lock patterns for `smerge-mode'.") (defconst smerge-begin-re "^<<<<<<< \\(.*\\)\n") (defconst smerge-end-re "^>>>>>>> .*\n") (defconst smerge-base-re "^||||||| .*\n") (defconst smerge-other-re "^=======\n") (defvar smerge-conflict-style nil "Keep track of which style of conflict is in use. Can be nil if the style is undecided, or else: - `diff3-E' - `diff3-A'") ;; Compiler pacifiers (defvar font-lock-mode) (defvar font-lock-keywords) ;;;; ;;;; Actual code ;;;; ;; Define smerge-next and smerge-prev (easy-mmode-define-navigation smerge smerge-begin-re "conflict") (defconst smerge-match-names ["conflict" "mine" "base" "other"]) (defun smerge-ensure-match (n) (unless (match-end n) (error "No `%s'" (aref smerge-match-names n)))) (defun smerge-auto-leave () (when (and smerge-auto-leave (save-excursion (goto-char (point-min)) (not (re-search-forward smerge-begin-re nil t)))) (when (and (listp buffer-undo-list) smerge-mode) (push (list 'apply 'smerge-mode 1) buffer-undo-list)) (smerge-mode -1))) (defun smerge-keep-all () "Concatenate all versions." (interactive) (smerge-match-conflict) (let ((mb2 (or (match-beginning 2) (point-max))) (me2 (or (match-end 2) (point-min)))) (delete-region (match-end 3) (match-end 0)) (delete-region (max me2 (match-end 1)) (match-beginning 3)) (if (and (match-end 2) (/= (match-end 1) (match-end 3))) (delete-region (match-end 1) (match-beginning 2))) (delete-region (match-beginning 0) (min (match-beginning 1) mb2)) (smerge-auto-leave))) (defun smerge-keep-n (n) (smerge-remove-props (match-beginning 0) (match-end 0)) ;; We used to use replace-match, but that did not preserve markers so well. (delete-region (match-end n) (match-end 0)) (delete-region (match-beginning 0) (match-beginning n))) (defun smerge-combine-with-next () "Combine the current conflict with the next one." (interactive) (smerge-match-conflict) (let ((ends nil)) (dolist (i '(3 2 1 0)) (push (if (match-end i) (copy-marker (match-end i) t)) ends)) (setq ends (apply 'vector ends)) (goto-char (aref ends 0)) (if (not (re-search-forward smerge-begin-re nil t)) (error "No next conflict") (smerge-match-conflict) (let ((match-data (mapcar (lambda (m) (if m (copy-marker m))) (match-data)))) ;; First copy the in-between text in each alternative. (dolist (i '(1 2 3)) (when (aref ends i) (goto-char (aref ends i)) (insert-buffer-substring (current-buffer) (aref ends 0) (car match-data)))) (delete-region (aref ends 0) (car match-data)) ;; Then move the second conflict's alternatives into the first. (dolist (i '(1 2 3)) (set-match-data match-data) (when (and (aref ends i) (match-end i)) (goto-char (aref ends i)) (insert-buffer-substring (current-buffer) (match-beginning i) (match-end i)))) (delete-region (car match-data) (cadr match-data)) ;; Free the markers. (dolist (m match-data) (if m (move-marker m nil))) (mapc (lambda (m) (if m (move-marker m nil))) ends))))) (defvar smerge-resolve-function (lambda () (error "Don't know how to resolve")) "Mode-specific merge function. The function is called with no argument and with the match data set according to `smerge-match-conflict'.") (add-to-list 'debug-ignored-errors "Don't know how to resolve") (defvar smerge-text-properties `(help-echo "merge conflict: mouse-3 shows a menu" ;; mouse-face highlight keymap (keymap (down-mouse-3 . smerge-popup-context-menu)))) (defun smerge-remove-props (beg end) (remove-overlays beg end 'smerge 'refine) (remove-overlays beg end 'smerge 'conflict) ;; Now that we use overlays rather than text-properties, this function ;; does not cause refontification any more. It can be seen very clearly ;; in buffers where jit-lock-contextually is not t, in which case deleting ;; the "<<<<<<< foobar" leading line leaves the rest of the conflict ;; highlighted as if it were still a valid conflict. Note that in many ;; important cases (such as the previous example) we're actually called ;; during font-locking so inhibit-modification-hooks is non-nil, so we ;; can't just modify the buffer and expect font-lock to be triggered as in: ;; (put-text-property beg end 'smerge-force-highlighting nil) (remove-text-properties beg end '(fontified nil))) (defun smerge-popup-context-menu (event) "Pop up the Smerge mode context menu under mouse." (interactive "e") (if (and smerge-mode (save-excursion (posn-set-point (event-end event)) (smerge-check 1))) (progn (posn-set-point (event-end event)) (smerge-match-conflict) (let ((i (smerge-get-current)) o) (if (<= i 0) ;; Out of range (popup-menu smerge-mode-menu) ;; Install overlay. (setq o (make-overlay (match-beginning i) (match-end i))) (unwind-protect (progn (overlay-put o 'face 'highlight) (sit-for 0) ;Display the new highlighting. (popup-menu smerge-context-menu)) ;; Delete overlay. (delete-overlay o))))) ;; There's no conflict at point, the text-props are just obsolete. (save-excursion (let ((beg (re-search-backward smerge-end-re nil t)) (end (re-search-forward smerge-begin-re nil t))) (smerge-remove-props (or beg (point-min)) (or end (point-max))) (push event unread-command-events))))) (defun smerge-resolve () "Resolve the conflict at point intelligently. This relies on mode-specific knowledge and thus only works in some major modes. Uses `smerge-resolve-function' to do the actual work." (interactive) (smerge-match-conflict) (smerge-remove-props (match-beginning 0) (match-end 0)) (cond ;; Trivial diff3 -A non-conflicts. ((and (eq (match-end 1) (match-end 3)) (eq (match-beginning 1) (match-beginning 3))) (smerge-keep-n 3)) ;; Mode-specific conflict resolution. ((condition-case nil (atomic-change-group (funcall smerge-resolve-function) t) (error nil)) ;; Nothing to do: the resolution function has done it already. nil) ;; FIXME: Add "if [ diff -b MINE OTHER ]; then select OTHER; fi" ((and (match-end 2) ;; FIXME: Add "diff -b BASE MINE | patch OTHER". ;; FIXME: Add "diff -b BASE OTHER | patch MINE". nil) ) ((and (not (match-end 2)) ;; FIXME: Add "diff -b"-based refinement. nil) ) (t (error "Don't know how to resolve"))) (smerge-auto-leave)) (defun smerge-keep-base () "Revert to the base version." (interactive) (smerge-match-conflict) (smerge-ensure-match 2) (smerge-keep-n 2) (smerge-auto-leave)) (defun smerge-keep-other () "Use \"other\" version." (interactive) (smerge-match-conflict) ;;(smerge-ensure-match 3) (smerge-keep-n 3) (smerge-auto-leave)) (defun smerge-keep-mine () "Keep your version." (interactive) (smerge-match-conflict) ;;(smerge-ensure-match 1) (smerge-keep-n 1) (smerge-auto-leave)) (defun smerge-get-current () (let ((i 3)) (while (or (not (match-end i)) (< (point) (match-beginning i)) (>= (point) (match-end i))) (decf i)) i)) (defun smerge-keep-current () "Use the current (under the cursor) version." (interactive) (smerge-match-conflict) (let ((i (smerge-get-current))) (if (<= i 0) (error "Not inside a version") (smerge-keep-n i) (smerge-auto-leave)))) (defun smerge-kill-current () "Remove the current (under the cursor) version." (interactive) (smerge-match-conflict) (let ((i (smerge-get-current))) (if (<= i 0) (error "Not inside a version") (let ((left nil)) (dolist (n '(3 2 1)) (if (and (match-end n) (/= (match-end n) (match-end i))) (push n left))) (if (and (cdr left) (/= (match-end (car left)) (match-end (cadr left)))) (ding) ;We don't know how to do that. (smerge-keep-n (car left)) (smerge-auto-leave)))))) (defun smerge-diff-base-mine () "Diff 'base' and 'mine' version in current conflict region." (interactive) (smerge-diff 2 1)) (defun smerge-diff-base-other () "Diff 'base' and 'other' version in current conflict region." (interactive) (smerge-diff 2 3)) (defun smerge-diff-mine-other () "Diff 'mine' and 'other' version in current conflict region." (interactive) (smerge-diff 1 3)) (defun smerge-match-conflict () "Get info about the conflict. Puts the info in the `match-data'. The submatches contain: 0: the whole conflict. 1: your code. 2: the base code. 3: other code. An error is raised if not inside a conflict." (save-excursion (condition-case nil (let* ((orig-point (point)) (_ (forward-line 1)) (_ (re-search-backward smerge-begin-re)) (start (match-beginning 0)) (mine-start (match-end 0)) (filename (or (match-string 1) "")) (_ (re-search-forward smerge-end-re)) (_ (assert (< orig-point (match-end 0)))) (other-end (match-beginning 0)) (end (match-end 0)) (_ (re-search-backward smerge-other-re start)) (mine-end (match-beginning 0)) (other-start (match-end 0)) base-start base-end) ;; handle the various conflict styles (cond ((save-excursion (goto-char mine-start) (re-search-forward smerge-begin-re end t)) ;; There's a nested conflict and we're after the the beginning ;; of the outer one but before the beginning of the inner one. ;; Of course, maybe this is not a nested conflict but in that ;; case it can only be something nastier that we don't know how ;; to handle, so may as well arbitrarily decide to treat it as ;; a nested conflict. --Stef (error "There is a nested conflict")) ((re-search-backward smerge-base-re start t) ;; a 3-parts conflict (set (make-local-variable 'smerge-conflict-style) 'diff3-A) (setq base-end mine-end) (setq mine-end (match-beginning 0)) (setq base-start (match-end 0))) ((string= filename (file-name-nondirectory (or buffer-file-name ""))) ;; a 2-parts conflict (set (make-local-variable 'smerge-conflict-style) 'diff3-E)) ((and (not base-start) (or (eq smerge-conflict-style 'diff3-A) (equal filename "ANCESTOR") (string-match "\\`[.0-9]+\\'" filename))) ;; a same-diff conflict (setq base-start mine-start) (setq base-end mine-end) (setq mine-start other-start) (setq mine-end other-end))) (store-match-data (list start end mine-start mine-end base-start base-end other-start other-end (when base-start (1- base-start)) base-start (1- other-start) other-start)) t) (search-failed (error "Point not in conflict region"))))) (defun smerge-conflict-overlay (pos) "Return the conflict overlay at POS if any." (let ((ols (overlays-at pos)) conflict) (dolist (ol ols) (if (and (eq (overlay-get ol 'smerge) 'conflict) (> (overlay-end ol) pos)) (setq conflict ol))) conflict)) (defun smerge-find-conflict (&optional limit) "Find and match a conflict region. Intended as a font-lock MATCHER. The submatches are the same as in `smerge-match-conflict'. Returns non-nil if a match is found between point and LIMIT. Point is moved to the end of the conflict." (let ((found nil) (pos (point)) conflict) ;; First check to see if point is already inside a conflict, using ;; the conflict overlays. (while (and (not found) (setq conflict (smerge-conflict-overlay pos))) ;; Check the overlay's validity and kill it if it's out of date. (condition-case nil (progn (goto-char (overlay-start conflict)) (smerge-match-conflict) (goto-char (match-end 0)) (if (<= (point) pos) (error "Matching backward!") (setq found t))) (error (smerge-remove-props (overlay-start conflict) (overlay-end conflict)) (goto-char pos)))) ;; If we're not already inside a conflict, look for the next conflict ;; and add/update its overlay. (while (and (not found) (re-search-forward smerge-begin-re limit t)) (condition-case nil (progn (smerge-match-conflict) (goto-char (match-end 0)) (let ((conflict (smerge-conflict-overlay (1- (point))))) (if conflict ;; Update its location, just in case it got messed up. (move-overlay conflict (match-beginning 0) (match-end 0)) (setq conflict (make-overlay (match-beginning 0) (match-end 0) nil 'front-advance nil)) (overlay-put conflict 'evaporate t) (overlay-put conflict 'smerge 'conflict) (let ((props smerge-text-properties)) (while props (overlay-put conflict (pop props) (pop props)))))) (setq found t)) (error nil))) found)) (defun smerge-refine-chopup-region (beg end file) "Chopup the region into small elements, one per line." ;; ediff chops up into words, where the definition of a word is ;; customizable. Instead we here keep only one char per line. ;; The advantages are that there's nothing to configure, that we get very ;; fine results, and that it's trivial to map the line numbers in the ;; output of diff back into buffer positions. The disadvantage is that it ;; can take more time to compute the diff and that the result is sometimes ;; too fine. I'm not too concerned about the slowdown because conflicts ;; are usually significantly smaller than the whole file. As for the ;; problem of too-fine-refinement, I have found it to be unimportant ;; especially when you consider the cases where the fine-grain is just ;; what you want. (let ((buf (current-buffer))) (with-temp-buffer (insert-buffer-substring buf beg end) (goto-char (point-min)) (while (not (eobp)) (forward-char 1) (unless (eq (char-before) ?\n) (insert ?\n))) (let ((coding-system-for-write 'emacs-mule)) (write-region (point-min) (point-max) file nil 'nomessage))))) (defun smerge-refine-highlight-change (buf beg match-num1 match-num2) (let* ((startline (string-to-number (match-string match-num1))) (ol (make-overlay (+ beg startline -1) (+ beg (if (match-end match-num2) (string-to-number (match-string match-num2)) startline)) buf 'front-advance nil))) (overlay-put ol 'smerge 'refine) (overlay-put ol 'evaporate t) (overlay-put ol 'face 'smerge-refined-change))) (defun smerge-refine () "Highlight the parts of the conflict that are different." (interactive) ;; FIXME: make it work with 3-way conflicts. (smerge-match-conflict) (remove-overlays (match-beginning 0) (match-end 0) 'smerge 'refine) (smerge-ensure-match 1) (smerge-ensure-match 3) (let ((buf (current-buffer)) ;; Read them before the match-data gets clobbered. (beg1 (match-beginning 1)) (end1 (match-end 1)) (beg2 (match-beginning 3)) (end2 (match-end 3)) (file1 (make-temp-file "smerge1")) (file2 (make-temp-file "smerge2"))) ;; Chop up regions into smaller elements and save into files. (smerge-refine-chopup-region beg1 end1 file1) (smerge-refine-chopup-region beg2 end2 file2) ;; Call diff on those files. (unwind-protect (with-temp-buffer (let ((coding-system-for-read 'emacs-mule)) (call-process diff-command nil t nil file1 file2)) ;; Process diff's output. (goto-char (point-min)) (while (not (eobp)) (if (not (looking-at "\\([0-9]+\\)\\(?:,\\([0-9]+\\)\\)?\\([acd]\\)\\([0-9]+\\)\\(?:,\\([0-9]+\\)\\)?$")) (error "Unexpected patch hunk header: %s" (buffer-substring (point) (line-end-position))) (let ((op (char-after (match-beginning 3)))) (when (memq op '(?d ?c)) (smerge-refine-highlight-change buf beg1 1 2)) (when (memq op '(?a ?c)) (smerge-refine-highlight-change buf beg2 4 5))) (forward-line 1) ;Skip hunk header. (and (re-search-forward "^[0-9]" nil 'move) ;Skip hunk body. (goto-char (match-beginning 0)))))) (delete-file file1) (delete-file file2)))) (defun smerge-diff (n1 n2) (smerge-match-conflict) (smerge-ensure-match n1) (smerge-ensure-match n2) (let ((name1 (aref smerge-match-names n1)) (name2 (aref smerge-match-names n2)) ;; Read them before the match-data gets clobbered. (beg1 (match-beginning n1)) (end1 (match-end n1)) (beg2 (match-beginning n2)) (end2 (match-end n2)) (file1 (make-temp-file "smerge1")) (file2 (make-temp-file "smerge2")) (dir default-directory) (file (if buffer-file-name (file-relative-name buffer-file-name))) ;; We would want to use `emacs-mule-unix' for read&write, but we ;; bump into problems with the coding-system used by diff to write ;; the file names and the time stamps in the header. ;; `buffer-file-coding-system' is not always correct either, but if ;; the OS/user uses only one coding-system, then it works. (coding-system-for-read buffer-file-coding-system)) (write-region beg1 end1 file1 nil 'nomessage) (write-region beg2 end2 file2 nil 'nomessage) (unwind-protect (with-current-buffer (get-buffer-create smerge-diff-buffer-name) (setq default-directory dir) (let ((inhibit-read-only t)) (erase-buffer) (let ((status (apply 'call-process diff-command nil t nil (append smerge-diff-switches (list "-L" (concat name1 "/" file) "-L" (concat name2 "/" file) file1 file2))))) (if (eq status 0) (insert "No differences found.\n")))) (goto-char (point-min)) (diff-mode) (display-buffer (current-buffer) t)) (delete-file file1) (delete-file file2)))) ;; compiler pacifiers (defvar smerge-ediff-windows) (defvar smerge-ediff-buf) (defvar ediff-buffer-A) (defvar ediff-buffer-B) (defvar ediff-buffer-C) (defvar ediff-ancestor-buffer) (defvar ediff-quit-hook) ;;;###autoload (defun smerge-ediff (&optional name-mine name-other name-base) "Invoke ediff to resolve the conflicts. NAME-MINE, NAME-OTHER, and NAME-BASE, if non-nil, are used for the buffer names." (interactive) (let* ((buf (current-buffer)) (mode major-mode) ;;(ediff-default-variant 'default-B) (config (current-window-configuration)) (filename (file-name-nondirectory buffer-file-name)) (mine (generate-new-buffer (or name-mine (concat "*" filename " MINE*")))) (other (generate-new-buffer (or name-other (concat "*" filename " OTHER*")))) base) (with-current-buffer mine (buffer-disable-undo) (insert-buffer-substring buf) (goto-char (point-min)) (while (smerge-find-conflict) (when (match-beginning 2) (setq base t)) (smerge-keep-n 1)) (buffer-enable-undo) (set-buffer-modified-p nil) (funcall mode)) (with-current-buffer other (buffer-disable-undo) (insert-buffer-substring buf) (goto-char (point-min)) (while (smerge-find-conflict) (smerge-keep-n 3)) (buffer-enable-undo) (set-buffer-modified-p nil) (funcall mode)) (when base (setq base (generate-new-buffer (or name-base (concat "*" filename " BASE*")))) (with-current-buffer base (buffer-disable-undo) (insert-buffer-substring buf) (goto-char (point-min)) (while (smerge-find-conflict) (if (match-end 2) (smerge-keep-n 2) (delete-region (match-beginning 0) (match-end 0)))) (buffer-enable-undo) (set-buffer-modified-p nil) (funcall mode))) ;; the rest of the code is inspired from vc.el ;; Fire up ediff. (set-buffer (if base (ediff-merge-buffers-with-ancestor mine other base) ;; nil 'ediff-merge-revisions-with-ancestor buffer-file-name) (ediff-merge-buffers mine other))) ;; nil 'ediff-merge-revisions buffer-file-name))) ;; Ediff is now set up, and we are in the control buffer. ;; Do a few further adjustments and take precautions for exit. (set (make-local-variable 'smerge-ediff-windows) config) (set (make-local-variable 'smerge-ediff-buf) buf) (set (make-local-variable 'ediff-quit-hook) (lambda () (let ((buffer-A ediff-buffer-A) (buffer-B ediff-buffer-B) (buffer-C ediff-buffer-C) (buffer-Ancestor ediff-ancestor-buffer) (buf smerge-ediff-buf) (windows smerge-ediff-windows)) (ediff-cleanup-mess) (with-current-buffer buf (erase-buffer) (insert-buffer-substring buffer-C) (kill-buffer buffer-A) (kill-buffer buffer-B) (kill-buffer buffer-C) (when (bufferp buffer-Ancestor) (kill-buffer buffer-Ancestor)) (set-window-configuration windows) (message "Conflict resolution finished; you may save the buffer"))))) (message "Please resolve conflicts now; exit ediff when done"))) ;; XEmacs hack: autoload a dummy autoload instead of a minor mode ;;;###autoload(autoload 'smerge-mode "smerge-mode" nil t) (define-minor-mode smerge-mode "Minor mode to simplify editing output from the diff3 program. \\{smerge-mode-map}" :group 'smerge :lighter " SMerge" (when (and (boundp 'font-lock-mode) font-lock-mode) (save-excursion (if smerge-mode (font-lock-add-keywords nil smerge-font-lock-keywords 'append) (font-lock-remove-keywords nil smerge-font-lock-keywords)) (goto-char (point-min)) (while (smerge-find-conflict) (save-excursion (font-lock-fontify-region (match-beginning 0) (match-end 0) nil))))) (unless smerge-mode (smerge-remove-props (point-min) (point-max)))) (provide 'smerge-mode) ;; arch-tag: 605c8d1e-e43d-4943-a6f3-1bcc4333e690 ;;; smerge-mode.el ends here