(defconst ediff-version "2.81.1" "The current version of Ediff")
(defconst ediff-date "October 23, 2006" "Date of last update")
(defvar cvs-cookie-handle)
(defvar ediff-last-dir-patch)
(defvar ediff-patch-default-directory)
(and noninteractive
(eval-when-compile
(load-library "dired")
(load-library "info")
(load "pcl-cvs" 'noerror)))
(eval-when-compile
(let ((load-path (cons (expand-file-name ".") load-path)))
(provide 'ediff) (or (featurep 'ediff-init)
(load "ediff-init.el" nil nil 'nosuffix))
(or (featurep 'ediff-mult)
(load "ediff-mult.el" nil nil 'nosuffix))
(or (featurep 'ediff-ptch)
(load "ediff-ptch.el" nil nil 'nosuffix))
(or (featurep 'ediff-vers)
(load "ediff-vers.el" nil nil 'nosuffix))
))
(require 'ediff-init)
(require 'ediff-mult)
(defgroup ediff nil
"A comprehensive visual interface to diff & patch."
:tag "Ediff"
:group 'tools)
(defcustom ediff-use-last-dir nil
"*If t, Ediff will use previous directory as default when reading file name."
:type 'boolean
:group 'ediff)
(defvar ediff-last-dir-A nil)
(defvar ediff-last-dir-B nil)
(defvar ediff-last-dir-C nil)
(defvar ediff-last-dir-ancestor nil)
(defvar ediff-last-merge-autostore-dir nil)
(defun ediff-set-read-only-in-buf-A ()
(ediff-with-current-buffer ediff-buffer-A
(toggle-read-only 1)))
(defun ediff-get-default-file-name (&optional default fileno)
(cond ((eq major-mode 'dired-mode)
(let ((current (dired-get-filename nil 'no-error))
(marked (condition-case nil
(dired-get-marked-files 'no-dir)
(error nil)))
aux-list choices result)
(or (integerp fileno) (setq fileno 0))
(if (stringp default)
(setq aux-list (cons default aux-list)))
(if (and (stringp current) (not (file-directory-p current)))
(setq aux-list (cons current aux-list)))
(setq choices (nconc marked aux-list))
(setq result (elt choices fileno))
(or result
default)))
((stringp default) default)
((buffer-file-name (current-buffer))
(file-name-nondirectory (buffer-file-name (current-buffer))))
))
(defun ediff-files (file-A file-B &optional startup-hooks)
"Run Ediff on a pair of files, FILE-A and FILE-B."
(interactive
(let ((dir-A (if ediff-use-last-dir
ediff-last-dir-A
default-directory))
dir-B f)
(list (setq f (ediff-read-file-name
"File A to compare"
dir-A
(ediff-get-default-file-name)
'no-dirs))
(ediff-read-file-name "File B to compare"
(setq dir-B
(if ediff-use-last-dir
ediff-last-dir-B
(file-name-directory f)))
(progn
(ediff-add-to-history
'file-name-history
(ediff-abbreviate-file-name
(expand-file-name
(file-name-nondirectory f)
dir-B)))
(ediff-get-default-file-name f 1)))
)))
(ediff-files-internal file-A
(if (file-directory-p file-B)
(expand-file-name
(file-name-nondirectory file-A) file-B)
file-B)
nil startup-hooks
'ediff-files))
(defun ediff-files3 (file-A file-B file-C &optional startup-hooks)
"Run Ediff on three files, FILE-A, FILE-B, and FILE-C."
(interactive
(let ((dir-A (if ediff-use-last-dir
ediff-last-dir-A
default-directory))
dir-B dir-C f ff)
(list (setq f (ediff-read-file-name
"File A to compare"
dir-A
(ediff-get-default-file-name)
'no-dirs))
(setq ff (ediff-read-file-name "File B to compare"
(setq dir-B
(if ediff-use-last-dir
ediff-last-dir-B
(file-name-directory f)))
(progn
(ediff-add-to-history
'file-name-history
(ediff-abbreviate-file-name
(expand-file-name
(file-name-nondirectory f)
dir-B)))
(ediff-get-default-file-name f 1))))
(ediff-read-file-name "File C to compare"
(setq dir-C (if ediff-use-last-dir
ediff-last-dir-C
(file-name-directory ff)))
(progn
(ediff-add-to-history
'file-name-history
(ediff-abbreviate-file-name
(expand-file-name
(file-name-nondirectory ff)
dir-C)))
(ediff-get-default-file-name ff 2)))
)))
(ediff-files-internal file-A
(if (file-directory-p file-B)
(expand-file-name
(file-name-nondirectory file-A) file-B)
file-B)
(if (file-directory-p file-C)
(expand-file-name
(file-name-nondirectory file-A) file-C)
file-C)
startup-hooks
'ediff-files3))
(defalias 'ediff3 'ediff-files3)
(defun ediff-find-file (file-var buffer-name &optional last-dir hooks-var)
(let* ((file (symbol-value file-var))
(file-magic (ediff-filename-magic-p file))
(temp-file-name-prefix (file-name-nondirectory file)))
(cond ((not (file-readable-p file))
(error "File `%s' does not exist or is not readable" file))
((file-directory-p file)
(error "File `%s' is a directory" file)))
(setq file (expand-file-name file))
(if last-dir
(set last-dir (expand-file-name (file-name-directory file))))
(set buffer-name (find-file-noselect file))
(ediff-with-current-buffer (symbol-value buffer-name)
(widen) (cond (file-magic (ediff-verify-file-buffer 'magic)
(setq file
(ediff-make-temp-file
(current-buffer) temp-file-name-prefix))
(set hooks-var (cons `(lambda () (delete-file ,file))
(symbol-value hooks-var))))
((not (equal (file-truename file)
(file-truename (buffer-file-name))))
(setq file
(ediff-make-temp-file
(current-buffer) temp-file-name-prefix))
(set hooks-var (cons `(lambda () (delete-file ,file))
(symbol-value hooks-var))))
(t (ediff-verify-file-buffer))))
(set file-var file)))
(defun ediff-files-internal (file-A file-B file-C startup-hooks job-name
&optional merge-buffer-file)
(let (buf-A buf-B buf-C)
(if (string= file-A file-B)
(error "Files A and B are the same"))
(if (stringp file-C)
(or (and (string= file-A file-C) (error "Files A and C are the same"))
(and (string= file-B file-C) (error "Files B and C are the same"))))
(message "Reading file %s ... " file-A)
(ediff-find-file 'file-A 'buf-A 'ediff-last-dir-A 'startup-hooks)
(message "Reading file %s ... " file-B)
(ediff-find-file 'file-B 'buf-B 'ediff-last-dir-B 'startup-hooks)
(if (stringp file-C)
(progn
(message "Reading file %s ... " file-C)
(ediff-find-file
'file-C 'buf-C
(if (eq job-name 'ediff-merge-files-with-ancestor)
'ediff-last-dir-ancestor 'ediff-last-dir-C)
'startup-hooks)))
(ediff-setup buf-A file-A
buf-B file-B
buf-C file-C
startup-hooks
(list (cons 'ediff-job-name job-name))
merge-buffer-file)))
(defalias 'ediff 'ediff-files)
(defun ediff-backup (file)
"Run Ediff on FILE and its backup file.
Uses the latest backup, if there are several numerical backups.
If this file is a backup, `ediff' it with its original."
(interactive (list (read-file-name "Ediff (file with backup): ")))
(require 'diff)
(let (bak ori)
(if (backup-file-name-p file)
(setq bak file
ori (file-name-sans-versions file))
(setq bak (or (diff-latest-backup-file file)
(error "No backup found for %s" file))
ori file))
(ediff-files bak ori)))
(defun ediff-buffers (buffer-A buffer-B &optional startup-hooks job-name)
"Run Ediff on a pair of buffers, BUFFER-A and BUFFER-B."
(interactive
(let (bf)
(list (setq bf (read-buffer "Buffer A to compare: "
(ediff-other-buffer "") t))
(read-buffer "Buffer B to compare: "
(progn
(save-window-excursion (other-window 1))
(ediff-other-buffer bf))
t))))
(or job-name (setq job-name 'ediff-buffers))
(ediff-buffers-internal buffer-A buffer-B nil startup-hooks job-name))
(defalias 'ebuffers 'ediff-buffers)
(defun ediff-buffers3 (buffer-A buffer-B buffer-C
&optional startup-hooks job-name)
"Run Ediff on three buffers, BUFFER-A, BUFFER-B, and BUFFER-C."
(interactive
(let (bf bff)
(list (setq bf (read-buffer "Buffer A to compare: "
(ediff-other-buffer "") t))
(setq bff (read-buffer "Buffer B to compare: "
(progn
(save-window-excursion (other-window 1))
(ediff-other-buffer bf))
t))
(read-buffer "Buffer C to compare: "
(progn
(save-window-excursion (other-window 1))
(ediff-other-buffer (list bf bff)))
t)
)))
(or job-name (setq job-name 'ediff-buffers3))
(ediff-buffers-internal buffer-A buffer-B buffer-C startup-hooks job-name))
(defalias 'ebuffers3 'ediff-buffers3)
(defun ediff-buffers-internal (buf-A buf-B buf-C startup-hooks job-name
&optional merge-buffer-file)
(let* ((buf-A-file-name (buffer-file-name (get-buffer buf-A)))
(buf-B-file-name (buffer-file-name (get-buffer buf-B)))
(buf-C-is-alive (ediff-buffer-live-p buf-C))
(buf-C-file-name (if buf-C-is-alive
(buffer-file-name (get-buffer buf-B))))
file-A file-B file-C)
(if (not (ediff-buffer-live-p buf-A))
(error "Buffer %S doesn't exist" buf-A))
(if (not (ediff-buffer-live-p buf-B))
(error "Buffer %S doesn't exist" buf-B))
(let ((ediff-job-name job-name))
(if (and ediff-3way-comparison-job
(not buf-C-is-alive))
(error "Buffer %S doesn't exist" buf-C)))
(if (stringp buf-A-file-name)
(setq buf-A-file-name (file-name-nondirectory buf-A-file-name)))
(if (stringp buf-B-file-name)
(setq buf-B-file-name (file-name-nondirectory buf-B-file-name)))
(if (stringp buf-C-file-name)
(setq buf-C-file-name (file-name-nondirectory buf-C-file-name)))
(setq file-A (ediff-make-temp-file buf-A buf-A-file-name)
file-B (ediff-make-temp-file buf-B buf-B-file-name))
(if buf-C-is-alive
(setq file-C (ediff-make-temp-file buf-C buf-C-file-name)))
(ediff-setup (get-buffer buf-A) file-A
(get-buffer buf-B) file-B
(if buf-C-is-alive (get-buffer buf-C))
file-C
(cons `(lambda ()
(delete-file ,file-A)
(delete-file ,file-B)
(if (stringp ,file-C) (delete-file ,file-C)))
startup-hooks)
(list (cons 'ediff-job-name job-name))
merge-buffer-file)))
(defun ediff-get-default-directory-name ()
(cond (ediff-use-last-dir ediff-last-dir-A)
((eq major-mode 'dired-mode)
(let ((f (dired-get-filename nil 'noerror)))
(if (and (stringp f) (file-directory-p f))
f
default-directory)))
(t default-directory)))
(defun ediff-directories (dir1 dir2 regexp)
"Run Ediff on a pair of directories, DIR1 and DIR2, comparing files that have
the same name in both. The third argument, REGEXP, is nil or a regular
expression; only file names that match the regexp are considered."
(interactive
(let ((dir-A (ediff-get-default-directory-name))
(default-regexp (eval ediff-default-filtering-regexp))
f)
(list (setq f (read-directory-name
"Directory A to compare:" dir-A nil 'must-match))
(read-directory-name "Directory B to compare:"
(if ediff-use-last-dir
ediff-last-dir-B
(ediff-strip-last-dir f))
nil 'must-match)
(read-string
(if (stringp default-regexp)
(format "Filter through regular expression (default %s): "
default-regexp)
"Filter through regular expression: ")
nil
'ediff-filtering-regexp-history
(eval ediff-default-filtering-regexp))
)))
(ediff-directories-internal
dir1 dir2 nil regexp 'ediff-files 'ediff-directories
))
(defalias 'edirs 'ediff-directories)
(defun ediff-directory-revisions (dir1 regexp)
"Run Ediff on a directory, DIR1, comparing its files with their revisions.
The second argument, REGEXP, is a regular expression that filters the file
names. Only the files that are under revision control are taken into account."
(interactive
(let ((dir-A (ediff-get-default-directory-name))
(default-regexp (eval ediff-default-filtering-regexp))
)
(list (read-directory-name
"Directory to compare with revision:" dir-A nil 'must-match)
(read-string
(if (stringp default-regexp)
(format "Filter through regular expression (default %s): "
default-regexp)
"Filter through regular expression: ")
nil
'ediff-filtering-regexp-history
(eval ediff-default-filtering-regexp))
)))
(ediff-directory-revisions-internal
dir1 regexp 'ediff-revision 'ediff-directory-revisions
))
(defalias 'edir-revisions 'ediff-directory-revisions)
(defun ediff-directories3 (dir1 dir2 dir3 regexp)
"Run Ediff on three directories, DIR1, DIR2, and DIR3, comparing files that
have the same name in all three. The last argument, REGEXP, is nil or a
regular expression; only file names that match the regexp are considered."
(interactive
(let ((dir-A (ediff-get-default-directory-name))
(default-regexp (eval ediff-default-filtering-regexp))
f)
(list (setq f (read-directory-name "Directory A to compare:" dir-A nil))
(setq f (read-directory-name "Directory B to compare:"
(if ediff-use-last-dir
ediff-last-dir-B
(ediff-strip-last-dir f))
nil 'must-match))
(read-directory-name "Directory C to compare:"
(if ediff-use-last-dir
ediff-last-dir-C
(ediff-strip-last-dir f))
nil 'must-match)
(read-string
(if (stringp default-regexp)
(format "Filter through regular expression (default %s): "
default-regexp)
"Filter through regular expression: ")
nil
'ediff-filtering-regexp-history
(eval ediff-default-filtering-regexp))
)))
(ediff-directories-internal
dir1 dir2 dir3 regexp 'ediff-files3 'ediff-directories3
))
(defalias 'edirs3 'ediff-directories3)
(defun ediff-merge-directories (dir1 dir2 regexp &optional merge-autostore-dir)
"Run Ediff on a pair of directories, DIR1 and DIR2, merging files that have
the same name in both. The third argument, REGEXP, is nil or a regular
expression; only file names that match the regexp are considered."
(interactive
(let ((dir-A (ediff-get-default-directory-name))
(default-regexp (eval ediff-default-filtering-regexp))
f)
(list (setq f (read-directory-name "Directory A to merge:"
dir-A nil 'must-match))
(read-directory-name "Directory B to merge:"
(if ediff-use-last-dir
ediff-last-dir-B
(ediff-strip-last-dir f))
nil 'must-match)
(read-string
(if (stringp default-regexp)
(format "Filter through regular expression (default %s): "
default-regexp)
"Filter through regular expression: ")
nil
'ediff-filtering-regexp-history
(eval ediff-default-filtering-regexp))
)))
(ediff-directories-internal
dir1 dir2 nil regexp 'ediff-merge-files 'ediff-merge-directories
nil merge-autostore-dir
))
(defalias 'edirs-merge 'ediff-merge-directories)
(defun ediff-merge-directories-with-ancestor (dir1 dir2 ancestor-dir regexp
&optional
merge-autostore-dir)
"Merge files in directories DIR1 and DIR2 using files in ANCESTOR-DIR as ancestors.
Ediff merges files that have identical names in DIR1, DIR2. If a pair of files
in DIR1 and DIR2 doesn't have an ancestor in ANCESTOR-DIR, Ediff will merge
without ancestor. The fourth argument, REGEXP, is nil or a regular expression;
only file names that match the regexp are considered."
(interactive
(let ((dir-A (ediff-get-default-directory-name))
(default-regexp (eval ediff-default-filtering-regexp))
f)
(list (setq f (read-directory-name "Directory A to merge:" dir-A nil))
(setq f (read-directory-name "Directory B to merge:"
(if ediff-use-last-dir
ediff-last-dir-B
(ediff-strip-last-dir f))
nil 'must-match))
(read-directory-name "Ancestor directory:"
(if ediff-use-last-dir
ediff-last-dir-C
(ediff-strip-last-dir f))
nil 'must-match)
(read-string
(if (stringp default-regexp)
(format "Filter through regular expression (default %s): "
default-regexp)
"Filter through regular expression: ")
nil
'ediff-filtering-regexp-history
(eval ediff-default-filtering-regexp))
)))
(ediff-directories-internal
dir1 dir2 ancestor-dir regexp
'ediff-merge-files-with-ancestor 'ediff-merge-directories-with-ancestor
nil merge-autostore-dir
))
(defun ediff-merge-directory-revisions (dir1 regexp
&optional merge-autostore-dir)
"Run Ediff on a directory, DIR1, merging its files with their revisions.
The second argument, REGEXP, is a regular expression that filters the file
names. Only the files that are under revision control are taken into account."
(interactive
(let ((dir-A (ediff-get-default-directory-name))
(default-regexp (eval ediff-default-filtering-regexp))
)
(list (read-directory-name
"Directory to merge with revisions:" dir-A nil 'must-match)
(read-string
(if (stringp default-regexp)
(format "Filter through regular expression (default %s): "
default-regexp)
"Filter through regular expression: ")
nil
'ediff-filtering-regexp-history
(eval ediff-default-filtering-regexp))
)))
(ediff-directory-revisions-internal
dir1 regexp 'ediff-merge-revisions 'ediff-merge-directory-revisions
nil merge-autostore-dir
))
(defalias 'edir-merge-revisions 'ediff-merge-directory-revisions)
(defun ediff-merge-directory-revisions-with-ancestor (dir1 regexp
&optional
merge-autostore-dir)
"Run Ediff on a directory, DIR1, merging its files with their revisions and ancestors.
The second argument, REGEXP, is a regular expression that filters the file
names. Only the files that are under revision control are taken into account."
(interactive
(let ((dir-A (ediff-get-default-directory-name))
(default-regexp (eval ediff-default-filtering-regexp))
)
(list (read-directory-name
"Directory to merge with revisions and ancestors:"
dir-A nil 'must-match)
(read-string
(if (stringp default-regexp)
(format "Filter through regular expression (default %s): "
default-regexp)
"Filter through regular expression: ")
nil
'ediff-filtering-regexp-history
(eval ediff-default-filtering-regexp))
)))
(ediff-directory-revisions-internal
dir1 regexp 'ediff-merge-revisions-with-ancestor
'ediff-merge-directory-revisions-with-ancestor
nil merge-autostore-dir
))
(defalias
'edir-merge-revisions-with-ancestor
'ediff-merge-directory-revisions-with-ancestor)
(defalias 'edirs-merge-with-ancestor 'ediff-merge-directories-with-ancestor)
(defun ediff-directories-internal (dir1 dir2 dir3 regexp action jobname
&optional startup-hooks
merge-autostore-dir)
(if (stringp dir3)
(setq dir3 (if (file-directory-p dir3) dir3 (file-name-directory dir3))))
(cond ((string= dir1 dir2)
(error "Directories A and B are the same: %s" dir1))
((and (eq jobname 'ediff-directories3)
(string= dir1 dir3))
(error "Directories A and C are the same: %s" dir1))
((and (eq jobname 'ediff-directories3)
(string= dir2 dir3))
(error "Directories B and C are the same: %s" dir1)))
(if merge-autostore-dir
(or (stringp merge-autostore-dir)
(error "%s: Directory for storing merged files must be a string"
jobname)))
(let ( dir-diff-struct
meta-buf)
(if (and ediff-autostore-merges
(ediff-merge-metajob jobname)
(not merge-autostore-dir))
(setq merge-autostore-dir
(read-directory-name "Save merged files in directory: "
(if ediff-use-last-dir
ediff-last-merge-autostore-dir
(ediff-strip-last-dir dir1))
nil
'must-match)))
(if merge-autostore-dir
(cond ((and (stringp dir1) (string= merge-autostore-dir dir1))
(or (y-or-n-p
"Directory for saving merged files = Directory A. Sure? ")
(error "Directory merge aborted")))
((and (stringp dir2) (string= merge-autostore-dir dir2))
(or (y-or-n-p
"Directory for saving merged files = Directory B. Sure? ")
(error "Directory merge aborted")))
((and (stringp dir3) (string= merge-autostore-dir dir3))
(or (y-or-n-p
"Directory for saving merged files = Ancestor Directory. Sure? ")
(error "Directory merge aborted")))))
(setq dir-diff-struct (ediff-intersect-directories
jobname
regexp dir1 dir2 dir3 merge-autostore-dir))
(setq startup-hooks
(cons `(lambda ()
(setq ediff-session-action-function (quote ,action))
(setq ediff-dir-difference-list
(cdr (quote ,dir-diff-struct))))
startup-hooks))
(setq meta-buf (ediff-prepare-meta-buffer
'ediff-filegroup-action
(car dir-diff-struct)
"*Ediff Session Group Panel"
'ediff-redraw-directory-group-buffer
jobname
startup-hooks))
(ediff-show-meta-buffer meta-buf)
))
(defun ediff-directory-revisions-internal (dir1 regexp action jobname
&optional startup-hooks
merge-autostore-dir)
(setq dir1 (if (file-directory-p dir1) dir1 (file-name-directory dir1)))
(if merge-autostore-dir
(or (stringp merge-autostore-dir)
(error "%S: Directory for storing merged files must be a string"
jobname)))
(let (file-list meta-buf)
(if (and ediff-autostore-merges
(ediff-merge-metajob jobname)
(not merge-autostore-dir))
(setq merge-autostore-dir
(read-directory-name "Save merged files in directory: "
(if ediff-use-last-dir
ediff-last-merge-autostore-dir
(ediff-strip-last-dir dir1))
nil
'must-match)))
(if (and merge-autostore-dir
(stringp dir1)
(string= merge-autostore-dir dir1))
(or (y-or-n-p
"Directory for saving merged file = directory A. Sure? ")
(error "Merge of directory revisions aborted")))
(setq file-list
(ediff-get-directory-files-under-revision
jobname regexp dir1 merge-autostore-dir))
(setq startup-hooks
(cons `(lambda ()
(setq ediff-session-action-function (quote ,action)))
startup-hooks))
(setq meta-buf (ediff-prepare-meta-buffer
'ediff-filegroup-action
file-list
"*Ediff Session Group Panel"
'ediff-redraw-directory-group-buffer
jobname
startup-hooks))
(ediff-show-meta-buffer meta-buf)
))
(defun ediff-windows-wordwise (dumb-mode &optional wind-A wind-B startup-hooks)
"Compare WIND-A and WIND-B, which are selected by clicking, wordwise.
With prefix argument, DUMB-MODE, or on a non-windowing display, works as
follows:
If WIND-A is nil, use selected window.
If WIND-B is nil, use window next to WIND-A."
(interactive "P")
(ediff-windows dumb-mode wind-A wind-B
startup-hooks 'ediff-windows-wordwise 'word-mode))
(defun ediff-windows-linewise (dumb-mode &optional wind-A wind-B startup-hooks)
"Compare WIND-A and WIND-B, which are selected by clicking, linewise.
With prefix argument, DUMB-MODE, or on a non-windowing display, works as
follows:
If WIND-A is nil, use selected window.
If WIND-B is nil, use window next to WIND-A."
(interactive "P")
(ediff-windows dumb-mode wind-A wind-B
startup-hooks 'ediff-windows-linewise nil))
(defun ediff-windows (dumb-mode wind-A wind-B startup-hooks job-name word-mode)
(if (or dumb-mode (not (ediff-window-display-p)))
(setq wind-A (ediff-get-next-window wind-A nil)
wind-B (ediff-get-next-window wind-B wind-A))
(setq wind-A (ediff-get-window-by-clicking wind-A nil 1)
wind-B (ediff-get-window-by-clicking wind-B wind-A 2)))
(let ((buffer-A (window-buffer wind-A))
(buffer-B (window-buffer wind-B))
beg-A end-A beg-B end-B)
(save-excursion
(save-window-excursion
(sit-for 0) (select-window wind-A)
(setq beg-A (window-start)
end-A (window-end))
(select-window wind-B)
(setq beg-B (window-start)
end-B (window-end))))
(setq buffer-A
(ediff-clone-buffer-for-window-comparison
buffer-A wind-A "-Window.A-")
buffer-B
(ediff-clone-buffer-for-window-comparison
buffer-B wind-B "-Window.B-"))
(ediff-regions-internal
buffer-A beg-A end-A buffer-B beg-B end-B
startup-hooks job-name word-mode nil)))
(defun ediff-regions-wordwise (buffer-A buffer-B &optional startup-hooks)
"Run Ediff on a pair of regions in specified buffers.
Regions \(i.e., point and mark\) can be set in advance or marked interactively.
This function is effective only for relatively small regions, up to 200
lines. For large regions, use `ediff-regions-linewise'."
(interactive
(let (bf)
(list (setq bf (read-buffer "Region's A buffer: "
(ediff-other-buffer "") t))
(read-buffer "Region's B buffer: "
(progn
(save-window-excursion (other-window 1))
(ediff-other-buffer bf))
t))))
(if (not (ediff-buffer-live-p buffer-A))
(error "Buffer %S doesn't exist" buffer-A))
(if (not (ediff-buffer-live-p buffer-B))
(error "Buffer %S doesn't exist" buffer-B))
(let ((buffer-A
(ediff-clone-buffer-for-region-comparison buffer-A "-Region.A-"))
(buffer-B
(ediff-clone-buffer-for-region-comparison buffer-B "-Region.B-"))
reg-A-beg reg-A-end reg-B-beg reg-B-end)
(save-excursion
(set-buffer buffer-A)
(setq reg-A-beg (region-beginning)
reg-A-end (region-end))
(set-buffer buffer-B)
(setq reg-B-beg (region-beginning)
reg-B-end (region-end)))
(ediff-regions-internal
(get-buffer buffer-A) reg-A-beg reg-A-end
(get-buffer buffer-B) reg-B-beg reg-B-end
startup-hooks 'ediff-regions-wordwise 'word-mode nil)))
(defun ediff-regions-linewise (buffer-A buffer-B &optional startup-hooks)
"Run Ediff on a pair of regions in specified buffers.
Regions \(i.e., point and mark\) can be set in advance or marked interactively.
Each region is enlarged to contain full lines.
This function is effective for large regions, over 100-200
lines. For small regions, use `ediff-regions-wordwise'."
(interactive
(let (bf)
(list (setq bf (read-buffer "Region A's buffer: "
(ediff-other-buffer "") t))
(read-buffer "Region B's buffer: "
(progn
(save-window-excursion (other-window 1))
(ediff-other-buffer bf))
t))))
(if (not (ediff-buffer-live-p buffer-A))
(error "Buffer %S doesn't exist" buffer-A))
(if (not (ediff-buffer-live-p buffer-B))
(error "Buffer %S doesn't exist" buffer-B))
(let ((buffer-A
(ediff-clone-buffer-for-region-comparison buffer-A "-Region.A-"))
(buffer-B
(ediff-clone-buffer-for-region-comparison buffer-B "-Region.B-"))
reg-A-beg reg-A-end reg-B-beg reg-B-end)
(save-excursion
(set-buffer buffer-A)
(setq reg-A-beg (region-beginning)
reg-A-end (region-end))
(goto-char reg-A-beg)
(beginning-of-line)
(setq reg-A-beg (point))
(goto-char reg-A-end)
(end-of-line)
(or (eobp) (forward-char)) (setq reg-A-end (point))
(set-buffer buffer-B)
(setq reg-B-beg (region-beginning)
reg-B-end (region-end))
(goto-char reg-B-beg)
(beginning-of-line)
(setq reg-B-beg (point))
(goto-char reg-B-end)
(end-of-line)
(or (eobp) (forward-char)) (setq reg-B-end (point))
)
(ediff-regions-internal
(get-buffer buffer-A) reg-A-beg reg-A-end
(get-buffer buffer-B) reg-B-beg reg-B-end
startup-hooks 'ediff-regions-linewise nil nil)))
(defun ediff-regions-internal (buffer-A beg-A end-A buffer-B beg-B end-B
startup-hooks job-name word-mode
setup-parameters)
(let ((tmp-buffer (get-buffer-create ediff-tmp-buffer))
overl-A overl-B
file-A file-B)
(ediff-with-current-buffer buffer-A
(setq beg-A (move-marker (make-marker) beg-A)
end-A (move-marker (make-marker) end-A)))
(ediff-with-current-buffer buffer-B
(setq beg-B (move-marker (make-marker) beg-B)
end-B (move-marker (make-marker) end-B)))
(if word-mode
(ediff-wordify beg-A end-A buffer-A tmp-buffer)
(ediff-copy-to-buffer beg-A end-A buffer-A tmp-buffer))
(setq file-A (ediff-make-temp-file tmp-buffer "regA"))
(if word-mode
(ediff-wordify beg-B end-B buffer-B tmp-buffer)
(ediff-copy-to-buffer beg-B end-B buffer-B tmp-buffer))
(setq file-B (ediff-make-temp-file tmp-buffer "regB"))
(setq overl-A (ediff-make-bullet-proof-overlay beg-A end-A buffer-A))
(setq overl-B (ediff-make-bullet-proof-overlay beg-B end-B buffer-B))
(ediff-setup buffer-A file-A
buffer-B file-B
nil nil (cons `(lambda ()
(delete-file ,file-A)
(delete-file ,file-B))
startup-hooks)
(append
(list (cons 'ediff-word-mode word-mode)
(cons 'ediff-narrow-bounds (list overl-A overl-B))
(cons 'ediff-job-name job-name))
setup-parameters))
))
(defalias 'ediff-merge 'ediff-merge-files)
(defsubst ediff-merge-on-startup ()
(ediff-do-merge 0)
)
(defun ediff-merge-files (file-A file-B
&optional startup-hooks merge-buffer-file)
"Merge two files without ancestor."
(interactive
(let ((dir-A (if ediff-use-last-dir
ediff-last-dir-A
default-directory))
dir-B f)
(list (setq f (ediff-read-file-name
"File A to merge"
dir-A
(ediff-get-default-file-name)
'no-dirs))
(ediff-read-file-name "File B to merge"
(setq dir-B
(if ediff-use-last-dir
ediff-last-dir-B
(file-name-directory f)))
(progn
(ediff-add-to-history
'file-name-history
(ediff-abbreviate-file-name
(expand-file-name
(file-name-nondirectory f)
dir-B)))
(ediff-get-default-file-name f 1)))
)))
(setq startup-hooks (cons 'ediff-merge-on-startup startup-hooks))
(ediff-files-internal file-A
(if (file-directory-p file-B)
(expand-file-name
(file-name-nondirectory file-A) file-B)
file-B)
nil startup-hooks
'ediff-merge-files
merge-buffer-file))
(defun ediff-merge-files-with-ancestor (file-A file-B file-ancestor
&optional
startup-hooks
merge-buffer-file)
"Merge two files with ancestor."
(interactive
(let ((dir-A (if ediff-use-last-dir
ediff-last-dir-A
default-directory))
dir-B dir-ancestor f ff)
(list (setq f (ediff-read-file-name
"File A to merge"
dir-A
(ediff-get-default-file-name)
'no-dirs))
(setq ff (ediff-read-file-name "File B to merge"
(setq dir-B
(if ediff-use-last-dir
ediff-last-dir-B
(file-name-directory f)))
(progn
(ediff-add-to-history
'file-name-history
(ediff-abbreviate-file-name
(expand-file-name
(file-name-nondirectory f)
dir-B)))
(ediff-get-default-file-name f 1))))
(ediff-read-file-name "Ancestor file"
(setq dir-ancestor
(if ediff-use-last-dir
ediff-last-dir-ancestor
(file-name-directory ff)))
(progn
(ediff-add-to-history
'file-name-history
(ediff-abbreviate-file-name
(expand-file-name
(file-name-nondirectory ff)
dir-ancestor)))
(ediff-get-default-file-name ff 2)))
)))
(setq startup-hooks (cons 'ediff-merge-on-startup startup-hooks))
(ediff-files-internal file-A
(if (file-directory-p file-B)
(expand-file-name
(file-name-nondirectory file-A) file-B)
file-B)
file-ancestor
startup-hooks
'ediff-merge-files-with-ancestor
merge-buffer-file))
(defalias 'ediff-merge-with-ancestor 'ediff-merge-files-with-ancestor)
(defun ediff-merge-buffers (buffer-A buffer-B
&optional
startup-hooks job-name merge-buffer-file)
"Merge buffers without ancestor."
(interactive
(let (bf)
(list (setq bf (read-buffer "Buffer A to merge: "
(ediff-other-buffer "") t))
(read-buffer "Buffer B to merge: "
(progn
(save-window-excursion (other-window 1))
(ediff-other-buffer bf))
t))))
(setq startup-hooks (cons 'ediff-merge-on-startup startup-hooks))
(or job-name (setq job-name 'ediff-merge-buffers))
(ediff-buffers-internal
buffer-A buffer-B nil startup-hooks job-name merge-buffer-file))
(defun ediff-merge-buffers-with-ancestor (buffer-A buffer-B buffer-ancestor
&optional
startup-hooks
job-name
merge-buffer-file)
"Merge buffers with ancestor."
(interactive
(let (bf bff)
(list (setq bf (read-buffer "Buffer A to merge: "
(ediff-other-buffer "") t))
(setq bff (read-buffer "Buffer B to merge: "
(progn
(save-window-excursion (other-window 1))
(ediff-other-buffer bf))
t))
(read-buffer "Ancestor buffer: "
(progn
(save-window-excursion (other-window 1))
(ediff-other-buffer (list bf bff)))
t)
)))
(setq startup-hooks (cons 'ediff-merge-on-startup startup-hooks))
(or job-name (setq job-name 'ediff-merge-buffers-with-ancestor))
(ediff-buffers-internal
buffer-A buffer-B buffer-ancestor startup-hooks job-name merge-buffer-file))
(defun ediff-merge-revisions (&optional file startup-hooks merge-buffer-file)
"Run Ediff by merging two revisions of a file.
The file is the optional FILE argument or the file visited by the current
buffer."
(interactive)
(if (stringp file) (find-file file))
(let (rev1 rev2)
(setq rev1
(read-string
(format
"Version 1 to merge (default %s's working version): "
(if (stringp file)
(file-name-nondirectory file) "current buffer")))
rev2
(read-string
(format
"Version 2 to merge (default %s): "
(if (stringp file)
(file-name-nondirectory file) "current buffer"))))
(ediff-load-version-control)
(funcall
(intern (format "ediff-%S-merge-internal" ediff-version-control-package))
rev1 rev2 nil startup-hooks merge-buffer-file)))
(defun ediff-merge-revisions-with-ancestor (&optional
file startup-hooks
merge-buffer-file)
"Run Ediff by merging two revisions of a file with a common ancestor.
The file is the optional FILE argument or the file visited by the current
buffer."
(interactive)
(if (stringp file) (find-file file))
(let (rev1 rev2 ancestor-rev)
(setq rev1
(read-string
(format
"Version 1 to merge (default %s's working version): "
(if (stringp file)
(file-name-nondirectory file) "current buffer")))
rev2
(read-string
(format
"Version 2 to merge (default %s): "
(if (stringp file)
(file-name-nondirectory file) "current buffer")))
ancestor-rev
(read-string
(format
"Ancestor version (default %s's base revision): "
(if (stringp file)
(file-name-nondirectory file) "current buffer"))))
(ediff-load-version-control)
(funcall
(intern (format "ediff-%S-merge-internal" ediff-version-control-package))
rev1 rev2 ancestor-rev startup-hooks merge-buffer-file)))
(defun run-ediff-from-cvs-buffer (pos)
"Run Ediff-merge on appropriate revisions of the selected file.
First run after `M-x cvs-update'. Then place the cursor on a line describing a
file and then run `run-ediff-from-cvs-buffer'."
(interactive "d")
(ediff-load-version-control)
(let ((tin (tin-locate cvs-cookie-handle pos)))
(if tin
(cvs-run-ediff-on-file-descriptor tin)
(error "There is no file to merge"))))
(defun ediff-patch-file (&optional arg patch-buf)
"Run Ediff by patching SOURCE-FILENAME.
If optional PATCH-BUF is given, use the patch in that buffer
and don't ask the user.
If prefix argument, then: if even argument, assume that the patch is in a
buffer. If odd -- assume it is in a file."
(interactive "P")
(let (source-dir source-file)
(require 'ediff-ptch)
(setq patch-buf
(ediff-get-patch-buffer
(if arg (prefix-numeric-value arg)) patch-buf))
(setq source-dir (cond (ediff-use-last-dir ediff-last-dir-patch)
((and (not ediff-patch-default-directory)
(buffer-file-name patch-buf))
(file-name-directory
(expand-file-name
(buffer-file-name patch-buf))))
(t default-directory)))
(setq source-file
(read-file-name
"File to patch (directory, if multifile patch): "
source-dir nil nil (ediff-get-default-file-name)))
(ediff-dispatch-file-patching-job patch-buf source-file)))
(defun ediff-patch-buffer (&optional arg patch-buf)
"Run Ediff by patching the buffer specified at prompt.
Without the optional prefix ARG, asks if the patch is in some buffer and
prompts for the buffer or a file, depending on the answer.
With ARG=1, assumes the patch is in a file and prompts for the file.
With ARG=2, assumes the patch is in a buffer and prompts for the buffer.
PATCH-BUF is an optional argument, which specifies the buffer that contains the
patch. If not given, the user is prompted according to the prefix argument."
(interactive "P")
(require 'ediff-ptch)
(setq patch-buf
(ediff-get-patch-buffer
(if arg (prefix-numeric-value arg)) patch-buf))
(ediff-patch-buffer-internal
patch-buf
(read-buffer
"Which buffer to patch? "
(ediff-other-buffer patch-buf))))
(defalias 'epatch 'ediff-patch-file)
(defalias 'epatch-buffer 'ediff-patch-buffer)
(defun ediff-revision (&optional file startup-hooks)
"Run Ediff by comparing versions of a file.
The file is an optional FILE argument or the file entered at the prompt.
Default: the file visited by the current buffer.
Uses `vc.el' or `rcs.el' depending on `ediff-version-control-package'."
(interactive "P")
(if (not (stringp file))
(setq file
(ediff-read-file-name "Compare revisions for file"
(if ediff-use-last-dir
ediff-last-dir-A
default-directory)
(ediff-get-default-file-name)
'no-dirs)))
(find-file file)
(if (and (buffer-modified-p)
(y-or-n-p (format "Buffer %s is modified. Save buffer? "
(buffer-name))))
(save-buffer (current-buffer)))
(let (rev1 rev2)
(setq rev1
(read-string
(format "Revision 1 to compare (default %s's latest revision): "
(file-name-nondirectory file)))
rev2
(read-string
(format "Revision 2 to compare (default %s's current state): "
(file-name-nondirectory file))))
(ediff-load-version-control)
(funcall
(intern (format "ediff-%S-internal" ediff-version-control-package))
rev1 rev2 startup-hooks)
))
(defalias 'erevision 'ediff-revision)
(defun ediff-load-version-control (&optional silent)
(require 'ediff-vers)
(or (featurep ediff-version-control-package)
(if (locate-library (symbol-name ediff-version-control-package))
(progn
(message "") (require ediff-version-control-package))
(or silent
(error "Version control package %S.el not found. Use vc.el instead"
ediff-version-control-package)))))
(defun ediff-version ()
"Return string describing the version of Ediff.
When called interactively, displays the version."
(interactive)
(if (interactive-p)
(message (ediff-version))
(format "Ediff %s of %s" ediff-version ediff-date)))
(defun ediff-documentation (&optional node)
"Display Ediff's manual.
With optional NODE, goes to that node."
(interactive)
(let ((ctl-window ediff-control-window)
(ctl-buf ediff-control-buffer))
(ediff-skip-unsuitable-frames)
(condition-case nil
(progn
(pop-to-buffer (get-buffer-create "*info*"))
(info (if ediff-xemacs-p "ediff.info" "ediff"))
(if node
(Info-goto-node node)
(message "Type `i' to search for a specific topic"))
(raise-frame (selected-frame)))
(error (beep 1)
(with-output-to-temp-buffer ediff-msg-buffer
(ediff-with-current-buffer standard-output
(fundamental-mode))
(princ ediff-BAD-INFO))
(if (window-live-p ctl-window)
(progn
(select-window ctl-window)
(set-window-buffer ctl-window ctl-buf)))))))
(dolist (mess '("^Errors in diff output. Diff output is in "
"^Hmm... I don't see an Ediff command around here...$"
"^Undocumented command! Type `G' in Ediff Control Panel to drop a note to the Ediff maintainer$"
": This command runs in Ediff Control Buffer only!$"
": Invalid op in ediff-check-version$"
"^ediff-shrink-window-C can be used only for merging jobs$"
"^Lost difference info on these directories$"
"^This command is inapplicable in the present context$"
"^This session group has no parent$"
"^Can't hide active session, $"
"^Ediff: something wrong--no multiple diffs buffer$"
"^Can't make context diff for Session $"
"^The patch buffer wasn't found$"
"^Aborted$"
"^This Ediff session is not part of a session group$"
"^No active Ediff sessions or corrupted session registry$"
"^No session info in this line$"
"^`.*' is not an ordinary file$"
"^Patch appears to have failed$"
"^Recomputation of differences cancelled$"
"^No fine differences in this mode$"
"^Lost connection to ancestor buffer...sorry$"
"^Not merging with ancestor$"
"^Don't know how to toggle read-only in buffer "
"Emacs is not running as a window application$"
"^This command makes sense only when merging with an ancestor$"
"^At end of the difference list$"
"^At beginning of the difference list$"
"^Nothing saved for diff .* in buffer "
"^Buffer is out of sync for file "
"^Buffer out of sync for file "
"^Output from `diff' not found$"
"^You forgot to specify a region in buffer "
"^All right. Make up your mind and come back...$"
"^Current buffer is not visiting any file$"
"^Failed to retrieve revision: $"
"^Can't determine display width.$"
"^File `.*' does not exist or is not readable$"
"^File `.*' is a directory$"
"^Buffer .* doesn't exist$"
"^Directories . and . are the same: "
"^Directory merge aborted$"
"^Merge of directory revisions aborted$"
"^Buffer .* doesn't exist$"
"^There is no file to merge$"
"^Version control package .*.el not found. Use vc.el instead$"))
(add-to-list 'debug-ignored-errors mess))
(require 'ediff-util)
(run-hooks 'ediff-load-hook)
(provide 'ediff)