;;; ediff-diff.el --- diff-related utilities
-;; Copyright (C) 1994, 95, 96, 97, 98, 99, 2000, 01, 02 Free Software Foundation, Inc.
+;; Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+;; 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
;; Author: Michael Kifer <kifer@cs.stonybrook.edu>
;; 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., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
;;; Commentary:
;; compiler pacifier
(defvar ediff-default-variant)
(defvar null-device)
+(defvar longlines-mode)
(eval-when-compile
(let ((load-path (cons (expand-file-name ".") load-path)))
(require 'ediff-init)
(defgroup ediff-diff nil
- "Diff related utilities"
+ "Diff related utilities."
:prefix "ediff-"
:group 'ediff)
;; The following functions needed for setting diff/diff3 options
;; test if diff supports the --binary option
(defsubst ediff-test-utility (diff-util option &optional files)
- (zerop (apply 'call-process
- (append (list diff-util nil nil nil option) files))))
+ (eq 0 (apply 'call-process
+ (append (list diff-util nil nil nil option) files))))
(defun ediff-diff-mandatory-option (diff-util)
(let ((file (if (boundp 'null-device) null-device "/dev/null")))
(ediff-with-current-buffer diff-buffer
(goto-char (point-min))
(while (re-search-forward ediff-match-diff-line nil t)
- (let* ((a-begin (string-to-int (buffer-substring (match-beginning 1)
- (match-end 1))))
+ (let* ((a-begin (string-to-number (buffer-substring (match-beginning 1)
+ (match-end 1))))
(a-end (let ((b (match-beginning 3))
(e (match-end 3)))
(if b
- (string-to-int (buffer-substring b e))
+ (string-to-number (buffer-substring b e))
a-begin)))
(diff-type (buffer-substring (match-beginning 4) (match-end 4)))
- (b-begin (string-to-int (buffer-substring (match-beginning 5)
- (match-end 5))))
+ (b-begin (string-to-number (buffer-substring (match-beginning 5)
+ (match-end 5))))
(b-end (let ((b (match-beginning 7))
(e (match-end 7)))
(if b
- (string-to-int (buffer-substring b e))
+ (string-to-number (buffer-substring b e))
b-begin)))
a-begin-pt a-end-pt b-begin-pt b-end-pt
c-begin c-end c-begin-pt c-end-pt)
c-prev c-end)
;; else convert lines to points
(ediff-with-current-buffer A-buffer
- (forward-line (- a-begin a-prev))
- (setq a-begin-pt (point))
- (forward-line (- a-end a-begin))
- (setq a-end-pt (point)
- a-prev a-end))
+ (let ((longlines-mode-val
+ (if (and (boundp 'longlines-mode) longlines-mode) 1 0)))
+ ;; we must disable and then restore longlines-mode
+ (if (eq longlines-mode-val 1)
+ (longlines-mode 0))
+ (forward-line (- a-begin a-prev))
+ (setq a-begin-pt (point))
+ (forward-line (- a-end a-begin))
+ (setq a-end-pt (point)
+ a-prev a-end)
+ (if (eq longlines-mode-val 1)
+ (longlines-mode longlines-mode-val))
+ ))
(ediff-with-current-buffer B-buffer
- (forward-line (- b-begin b-prev))
- (setq b-begin-pt (point))
- (forward-line (- b-end b-begin))
- (setq b-end-pt (point)
- b-prev b-end))
+ (let ((longlines-mode-val
+ (if (and (boundp 'longlines-mode) longlines-mode) 1 0)))
+ (if (eq longlines-mode-val 1)
+ (longlines-mode 0))
+ (forward-line (- b-begin b-prev))
+ (setq b-begin-pt (point))
+ (forward-line (- b-end b-begin))
+ (setq b-end-pt (point)
+ b-prev b-end)
+ (if (eq longlines-mode-val 1)
+ (longlines-mode longlines-mode-val))
+ ))
(if (ediff-buffer-live-p C-buffer)
(ediff-with-current-buffer C-buffer
- (forward-line (- c-begin c-prev))
- (setq c-begin-pt (point))
- (forward-line (- c-end c-begin))
- (setq c-end-pt (point)
- c-prev c-end)))
+ (let ((longlines-mode-val
+ (if (and (boundp 'longlines-mode) longlines-mode) 1 0)))
+ (if (eq longlines-mode-val 1)
+ (longlines-mode 0))
+ (forward-line (- c-begin c-prev))
+ (setq c-begin-pt (point))
+ (forward-line (- c-end c-begin))
+ (setq c-end-pt (point)
+ c-prev c-end)
+ (if (eq longlines-mode-val 1)
+ (longlines-mode longlines-mode-val))
+ )))
(setq diff-list
(nconc
diff-list
(defun ediff-set-diff-overlays-in-one-buffer (buf-type diff-list)
(let* ((current-diff -1)
(buff (ediff-get-buffer buf-type))
+ (ctl-buf ediff-control-buffer)
;; ediff-extract-diffs puts the type of diff-list as the first elt
;; of this list. The type is either 'points or 'words
(diff-list-type (car diff-list))
(if (eq diff-list-type 'words)
(progn
(ediff-with-current-buffer buff (goto-char pt-saved))
- (setq begin (ediff-goto-word (1+ begin) buff)
- end (ediff-goto-word end buff 'end))
+ (ediff-with-current-buffer ctl-buf
+ (setq begin (ediff-goto-word (1+ begin) buff)
+ end (ediff-goto-word end buff 'end)))
(if (> end limit) (setq end limit))
(if (> begin end) (setq begin end))
(setq pt-saved (ediff-with-current-buffer buff (point)))))
(let* ((current-diff -1)
(reg-start (ediff-get-diff-posn buf-type 'beg region-num))
(buff (ediff-get-buffer buf-type))
+ (ctl-buf ediff-control-buffer)
combined-merge-diff-list
diff-overlay-list list-element
begin end overlay)
() ; skip this diff
;; Put overlays at appropriate places in buffers
;; convert lines to points, if necessary
- (setq begin (ediff-goto-word (1+ begin) buff)
- end (ediff-goto-word end buff 'end))
+ (ediff-with-current-buffer ctl-buf
+ (setq begin (ediff-goto-word (1+ begin) buff)
+ end (ediff-goto-word end buff 'end)))
(setq overlay (ediff-make-bullet-proof-overlay begin end buff))
;; record all overlays for this difference region
(setq diff-overlay-list (nconc diff-overlay-list (list overlay))))
;; it is a "c" group
(if (match-beginning 2)
;; it has two numbers
- (list (string-to-int
+ (list (string-to-number
(buffer-substring (match-beginning 1) (match-end 1)))
- (1+ (string-to-int
+ (1+ (string-to-number
(buffer-substring (match-beginning 3) (match-end 3)))))
;; it has one number
- (let ((x (string-to-int
+ (let ((x (string-to-number
(buffer-substring (match-beginning 1) (match-end 1)))))
(list x (1+ x))))
;; it is an "a" group
- (let ((x (1+ (string-to-int
+ (let ((x (1+ (string-to-number
(buffer-substring (match-beginning 1) (match-end 1))))))
(list x x)))))
c-prev c-end)
;; else convert lines to points
(ediff-with-current-buffer A-buffer
- (forward-line (- a-begin a-prev))
- (setq a-begin-pt (point))
- (forward-line (- a-end a-begin))
- (setq a-end-pt (point)
- a-prev a-end))
+ (let ((longlines-mode-val
+ (if (and (boundp 'longlines-mode) longlines-mode) 1 0)))
+ ;; we must disable and then restore longlines-mode
+ (if (eq longlines-mode-val 1)
+ (longlines-mode 0))
+ (forward-line (- a-begin a-prev))
+ (setq a-begin-pt (point))
+ (forward-line (- a-end a-begin))
+ (setq a-end-pt (point)
+ a-prev a-end)
+ (if (eq longlines-mode-val 1)
+ (longlines-mode longlines-mode-val))
+ ))
(ediff-with-current-buffer B-buffer
- (forward-line (- b-begin b-prev))
- (setq b-begin-pt (point))
- (forward-line (- b-end b-begin))
- (setq b-end-pt (point)
- b-prev b-end))
+ (let ((longlines-mode-val
+ (if (and (boundp 'longlines-mode) longlines-mode) 1 0)))
+ (if (eq longlines-mode-val 1)
+ (longlines-mode 0))
+ (forward-line (- b-begin b-prev))
+ (setq b-begin-pt (point))
+ (forward-line (- b-end b-begin))
+ (setq b-end-pt (point)
+ b-prev b-end)
+ (if (eq longlines-mode-val 1)
+ (longlines-mode longlines-mode-val))
+ ))
(ediff-with-current-buffer C-buffer
- (forward-line (- c-begin c-prev))
- (setq c-begin-pt (point))
- (forward-line (- c-end c-begin))
- (setq c-end-pt (point)
- c-prev c-end))
+ (let ((longlines-mode-val
+ (if (and (boundp 'longlines-mode) longlines-mode) 1 0)))
+ (if (eq longlines-mode-val 1)
+ (longlines-mode 0))
+ (forward-line (- c-begin c-prev))
+ (setq c-begin-pt (point))
+ (forward-line (- c-end c-begin))
+ (setq c-end-pt (point)
+ c-prev c-end)
+ (if (eq longlines-mode-val 1)
+ (longlines-mode longlines-mode-val))
+ ))
(if (ediff-buffer-live-p anc-buffer)
(ediff-with-current-buffer anc-buffer
- (forward-line (- c-or-anc-begin anc-prev))
- (setq anc-begin-pt (point))
- (forward-line (- c-or-anc-end c-or-anc-begin))
- (setq anc-end-pt (point)
- anc-prev c-or-anc-end)))
+ (let ((longlines-mode-val
+ (if (and (boundp 'longlines-mode) longlines-mode) 1 0)))
+ (if (eq longlines-mode-val 1)
+ (longlines-mode 0))
+ (forward-line (- c-or-anc-begin anc-prev))
+ (setq anc-begin-pt (point))
+ (forward-line (- c-or-anc-end c-or-anc-begin))
+ (setq anc-end-pt (point)
+ anc-prev c-or-anc-end)
+ (if (eq longlines-mode-val 1)
+ (longlines-mode longlines-mode-val))
+ )))
(setq diff-list
(nconc
diff-list
(while (> n 1)
(funcall fwd-word-fun)
(skip-chars-forward ediff-whitespace)
- (setq n (1- n))))
- (if (and flag (> n 0))
- (funcall fwd-word-fun))
+ (setq n (1- n)))
+ (if (and flag (> n 0))
+ (funcall fwd-word-fun)))
(point))))
(defun ediff-same-file-contents (f1 f2)
- "Return t if F1 and F2 have identical contents."
- (let ((res
- (apply 'call-process ediff-cmp-program nil nil nil
- (append ediff-cmp-options (list f1 f2)))))
- (and (numberp res) (eq res 0))))
+ "Return t if files F1 and F2 have identical contents."
+ (if (and (not (file-directory-p f1))
+ (not (file-directory-p f2)))
+ (let ((res
+ (apply 'call-process ediff-cmp-program nil nil nil
+ (append ediff-cmp-options (list f1 f2)))))
+ (and (numberp res) (eq res 0))))
+ )
+
+
+(defun ediff-same-contents (d1 d2 &optional filter-re)
+ "Returns t iff D1 and D2 have the same content.
+D1 and D2 can either be both directories or both regular files.
+Symlinks and the likes are not handled.
+If FILTER-RE is non-nil, recursive checking in directories
+affects only files whose names match the expression."
+ ;; Normalize empty filter RE to nil.
+ (unless (> (length filter-re) 0) (setq filter-re nil))
+ ;; Indicate progress
+ (message "Comparing '%s' and '%s' modulo '%s'" d1 d2 filter-re)
+ (cond
+ ;; D1 & D2 directories => recurse
+ ((and (file-directory-p d1)
+ (file-directory-p d2))
+ (if (null ediff-recurse-to-subdirectories)
+ (if (y-or-n-p "Compare subdirectories recursively? ")
+ (setq ediff-recurse-to-subdirectories 'yes)
+ (setq ediff-recurse-to-subdirectories 'no)))
+ (if (eq ediff-recurse-to-subdirectories 'yes)
+ (let* ((all-entries-1 (directory-files d1 t filter-re))
+ (all-entries-2 (directory-files d2 t filter-re))
+ (entries-1 (ediff-delete-all-matches "^\\.\\.?$" all-entries-1))
+ (entries-2 (ediff-delete-all-matches "^\\.\\.?$" all-entries-2))
+ )
+
+ (ediff-same-file-contents-lists entries-1 entries-2 filter-re)
+ ))
+ ) ; end of the directories case
+ ;; D1 & D2 are both files => compare directly
+ ((and (file-regular-p d1)
+ (file-regular-p d2))
+ (ediff-same-file-contents d1 d2))
+ ;; Otherwise => false: unequal contents
+ )
+ )
+
+;; If lists have the same length and names of files are pairwise equal
+;; (removing the directories) then compare contents pairwise.
+;; True if all contents are the same; false otherwise
+(defun ediff-same-file-contents-lists (entries-1 entries-2 filter-re)
+ ;; First, check only the names (works quickly and ensures a
+ ;; precondition for subsequent code)
+ (if (and (= (length entries-1) (length entries-2))
+ (equal (mapcar 'file-name-nondirectory entries-1)
+ (mapcar 'file-name-nondirectory entries-2)))
+ ;; With name equality established, compare the entries
+ ;; through recursion.
+ (let ((continue t))
+ (while (and entries-1 continue)
+ (if (ediff-same-contents
+ (car entries-1) (car entries-2) filter-re)
+ (setq entries-1 (cdr entries-1)
+ entries-2 (cdr entries-2))
+ (setq continue nil))
+ )
+ ;; if reached the end then lists are equal
+ (null entries-1))
+ )
+ )
+
+
+;; ARG1 is a regexp, ARG2 is a list of full-filenames
+;; Delete all entries that match the regexp
+(defun ediff-delete-all-matches (regex file-list-list)
+ (let (result elt)
+ (while file-list-list
+ (setq elt (car file-list-list))
+ (or (string-match regex (file-name-nondirectory elt))
+ (setq result (cons elt result)))
+ (setq file-list-list (cdr file-list-list)))
+ (reverse result)))
;;; Local Variables:
;;; eval: (put 'ediff-with-current-buffer 'edebug-form-spec '(form body))
;;; End:
-
;;; arch-tag: a86d448e-58d7-4572-a1d9-fdedfa22f648
;;; ediff-diff.el ends here
HCoop / bpt / emacs.git / blobdiff