;;; smerge-mode.el --- Minor mode to resolve diff3 conflicts
;; Copyright (C) 1999, 2000, 2001, 2002, 2003,
-;; 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+;; 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
;; Author: Stefan Monnier <monnier@iro.umontreal.ca>
;; Keywords: tools revision-control merge diff3 cvs conflict
(defun smerge-combine-with-next ()
"Combine the current conflict with the next one."
+ ;; `smerge-auto-combine' relies on the finish position (at the beginning
+ ;; of the closing marker).
(interactive)
(smerge-match-conflict)
(let ((ends nil))
(dolist (m match-data) (if m (move-marker m nil)))
(mapc (lambda (m) (if m (move-marker m nil))) ends)))))
+(defvar smerge-auto-combine-max-separation 2
+ "Max number of lines between conflicts that should be combined.")
+
+(defun smerge-auto-combine ()
+ "Automatically combine conflicts that are near each other."
+ (interactive)
+ (save-excursion
+ (goto-char (point-min))
+ (while (smerge-find-conflict)
+ ;; 2 is 1 (default) + 1 (the begin markers).
+ (while (save-excursion
+ (smerge-find-conflict
+ (line-beginning-position
+ (+ 2 smerge-auto-combine-max-separation))))
+ (forward-line -1) ;Go back inside the conflict.
+ (smerge-combine-with-next)
+ (forward-line 1) ;Move past the end of the conflict.
+ ))))
+
(defvar smerge-resolve-function
(lambda () (error "Don't know how to resolve"))
"Mode-specific merge function.
(remove-overlays (match-beginning 0) (match-end 0) 'smerge 'refine)
(smerge-ensure-match 1)
(smerge-ensure-match 3)
- (smerge-refine-subst (match-beginning 1) (match-end 1)
- (match-beginning 3) (match-end 3)
- '((smerge . refine)
- (face . smerge-refined-change))))
+ ;; Match 1 and 3 may be one and the same in case of trivial diff3 -A conflict.
+ (let ((n1 (if (eq (match-end 1) (match-end 3)) 2 1)))
+ (smerge-refine-subst (match-beginning n1) (match-end n1)
+ (match-beginning 3) (match-end 3)
+ '((smerge . refine)
+ (face . smerge-refined-change)))))
(defun smerge-diff (n1 n2)
(smerge-match-conflict)
(defvar ediff-buffer-C)
(defvar ediff-ancestor-buffer)
(defvar ediff-quit-hook)
+(declare-function ediff-cleanup-mess "ediff-util" nil)
;;;###autoload
(defun smerge-ediff (&optional name-mine name-other name-base)
(message "Conflict resolution finished; you may save the buffer")))))
(message "Please resolve conflicts now; exit ediff when done")))
+(defun smerge-makeup-conflict (pt1 pt2 pt3 &optional pt4)
+ "Insert diff3 markers to make a new conflict.
+Uses point and mark for 2 of the relevant positions and previous marks
+for the other ones.
+By default, makes up a 2-way conflict,
+with a \\[universal-argument] prefix, makes up a 3-way conflict."
+ (interactive
+ (list (point)
+ (mark)
+ (progn (pop-mark) (mark))
+ (when current-prefix-arg (pop-mark) (mark))))
+ ;; Start from the end so as to avoid problems with pos-changes.
+ (destructuring-bind (pt1 pt2 pt3 &optional pt4)
+ (sort (list* pt1 pt2 pt3 (if pt4 (list pt4))) '>=)
+ (goto-char pt1) (beginning-of-line)
+ (insert ">>>>>>> OTHER\n")
+ (goto-char pt2) (beginning-of-line)
+ (insert "=======\n")
+ (goto-char pt3) (beginning-of-line)
+ (when pt4
+ (insert "||||||| BASE\n")
+ (goto-char pt4) (beginning-of-line))
+ (insert "<<<<<<< MINE\n"))
+ (if smerge-mode nil (smerge-mode 1))
+ (smerge-refine))
+
(defconst smerge-parsep-re
(concat smerge-begin-re "\\|" smerge-end-re "\\|"
(unless smerge-mode
(smerge-remove-props (point-min) (point-max))))
+;;;###autoload
+(defun smerge-start-session ()
+ "Turn on `smerge-mode' and move point to first conflict marker.
+If no conflict maker is found, turn off `smerge-mode'."
+ (smerge-mode 1)
+ (condition-case nil
+ (smerge-next)
+ (error (smerge-auto-leave))))
(provide 'smerge-mode)