;; Created: February 2, 1994
;; Keywords: comparing, merging, patching, version control.
-(defconst ediff-version "2.26" "The current version of Ediff")
-(defconst ediff-date "June 3, 1995" "Date of last update")
+(defconst ediff-version "2.46" "The current version of Ediff")
+(defconst ediff-date "September 28, 1995" "Date of last update")
;; This file is part of GNU Emacs.
;; through them. You can also copy difference regions from one buffer to
;; another (and recover old differences if you change your mind).
+;; Ediff also supports merging operations on files and buffers, including
+;; merging using ancestor versions. Both comparison and merging operations can
+;; be performed on directories, i.e., by pairwise comparison of files in those
+;; directories.
+
;; In addition, Ediff can apply a patch to a file and then let you step
;; though both files, the patched and the original one, simultaneously,
;; difference-by-difference. You can even apply a patch right out of a
;; files with their older versions. Ediff can also work with remote and
;; compressed files. Details are given below.
-;; This package builds upon the ideas borrowed from emerge.el and
-;; several Ediff's functions are adaptations from emerge.el.
-;; Much of the functionality of Ediff is also influenced by emerge.el.
+;; Finally, Ediff supports directory-level comparison and merging operations.
+;; See the on-line manual for details.
-;; The present version of Ediff supersedes Emerge. It provides a superior
-;; user interface and has many features not found in Emerge. In particular,
-;; it can do patching and 2-way and 3-way file comparison in addition to
-;; merging.
+;; This package builds upon the ideas borrowed from emerge.el and several
+;; Ediff's functions are adaptations from emerge.el. Much of the functionality
+;; Ediff provides is also influenced by emerge.el.
+
+;; The present version of Ediff supersedes Emerge. It provides a superior user
+;; interface and has numerous major features not found in Emerge. In
+;; particular, it can do patching, and 2-way and 3-way file comparison,
+;; merging, and directory operations.
-;;; Compilation
-;; -----------
-;;
-;; When you byte-compile Ediff, you will get some warnings about functions
-;; being undefined. These can be safely ignored.
-;;
;;; Bugs:
;; -----
;; hilit19.el or font-lock.el packages. If this residual highlighting gets
;; in the way, you can do the following. Both font-lock.el and hilit19.el
;; provide commands for unhighlighting buffers. You can either place these
-;; commands in `ediff-prepare-buffer-hooks' (which will unhighlight every
+;; commands in `ediff-prepare-buffer-hook' (which will unhighlight every
;; buffer used by Ediff) or you can execute them interactively, at any time
;; and on any buffer.
;;
-;;; Change Log:
-;; ----------
-
-;; Thu Feb 3, 1994
-
-;; Fixed a bug in ediff-setup-windows that caused control window to
-;; appear in a wrong place when split-window-keep-point is nil
-;; (Thanks to Kevin Broadey <KevinB@bartley.demon.co.uk>.)
-;;
-;; Added mechanism for using faces instead of before/after flags. This
-;; looks much better on an X display, especially on a color one.
-;; (Thanks to Boris Goldowsky <boris@cs.rochester.edu> for the code
-;; that led to ediff-highlight-diff.
-;; Also, thanks to Kevin Esler <esler@ch.hp.com> for suggestions
-;; regarding highlighting differences on X displays.)
-;;
-;; Added functions to apply patches.
-;; (Thanks to Kevin Broadey <KevinB@bartley.demon.co.uk> for this
-;; suggestion.)
-
-;; Fri Feb 4, 1994
-
-;; Added mechanism for toggling vertical/horizontal window split.
-;; (Inspired by a suggestion from Allan Gottlieb
-;; <gottlieb@allan.ultra.nyu.edu> -- thanks.)
-;;
-;; Added mechanism for toggling between highlighting using faces and
-;; highlighting using ASCII flags.
-;;
-;; Fixed a problem with undo. Now, Ediff has smartened up and doesn't
-;; keep undo info on ASCII flags inserted in buffer-A and buffer-B.
-;; So, if you edit the files while browsing through them, undo behaves
-;; as you would expect, i.e., faces/flags don't get in the way.
-
-;; Sun Feb 6, 1994
-
-;; Added horizontal scrolling. Added ediff-position-region to ensure
-;; that difference regions in buffer-A and buffer-B are aligned with
-;; each other. Disabled ediff-toggle-split when buffers are displayed
-;; in different frames.
-;;
-;; Added toggle-window help (Suggested by Boris Goldowsky
-;; <boris@cs.rochester.edu>.)
-;; Added functions to copy differences from one buffer to another and to
-;; recover old differences.
-;; Added prefix arguments to ediff-next-difference and
-;; ediff-previous-difference.
-
-;; Tue Feb 8, 1994
-
-;; Replaced text properties with overlays. Fixed ediff-setup-windows.
-;; Added ediff-save-buffer to local-write-file-hooks to prevent user
-;; from saving corrupted states. (Thanks to <boris@cs.rochester.edu>
-;; for suggestion.) Instead, Ediff now has a pair of functions for
-;; safe saving of buffers.
-;; Changed ediff-read-file-name to be more intuitive on ediff-files.
-;; Added ediff-prepare-buffer-hooks. (Thanks to Kevin Esler
-;; <esler@ch.hp.com> for the idea.)
-;;
-;; Cleanups in ediff-patch-file. Protected ediff-copy-diff against
-;; a bug that Emacs has in kill-region.
-;;
-;; Added support for Lemacs. (Thanks to Alastair Burt
-;; <burt@dfki.uni-kl.de> for coercing Ediff into working under Lemacs.)
-;; Added ediff-kill-buffer-carefully and other suggestions by Boris
-;; Goldowsky <boris@cs.rochester.edu>.
-;; Refined the protection against interference with highlighting caused
-;; by Hilit19. Added the variable ediff-third-party-highlighting.
-;; Added mechanisn for unhighlighting regions highlighted with Hilit19
-;; before hightlighting them with Ediff's overlays. (And for
-;; rehighlighting them with Hilit19, when the current difference moves on.)
-
-;; Sun Feb 13, 1994
-
-;; Added ediff-place-flags-in-buffer and ediff-remote-exit, which are
-;; modifications of Emerge's similar functions. The difference is that
-;; in Ediff they make ediff-before-flag and ediff-after-flag into
-;; read-only regions, so the user can't change them by mistake.
-;;
-;; Adopted a suggestion by Boris Goldowsky <boris@cs.rochester.edu>
-;; that led to a more elegant treatment of faces.
-;;
-;; Added protection against interference with Font-Lock highlighting
-;; similar to that of Hilit19's protection.
-
-;; Tue Feb 15, 1994
-
-;; Deleted spurious (auto-save-mode 1) in ediff-control-buffer, which
-;; was causing this buffer to be auto-saved for no good reason.
-;; Added read-only protection to ediff-before/after-flags in Lemacs.
-;; (Thanks to Alastair Burt <burt@dfki.uni-kl.de> for help in testing.)
-;;
-;; Further fixes in the XEmacs part. Changed highlighted region in
-;; ediff-highlight-diff so that an extra character will be highlighted
-;; only if a difference is empty (thereby allowing the user to see where an
-;; insertion or a deletion has taken place).
-;;
-;; Simplified interaction with other highlighting packages by giving
-;; Ediff overlays the highest priority. (Taking a cue from
-;; ediff-highlight-diff-lemacs written by Alastair Burt
-;; <burt@dfki.uni-kl.de>.) Zapped ediff-third-party-highlighting
-;; variable and hooks that were previously used to
-;; unhighlight/rehighlight buffers when hilit19/font-lock are on.
-
-;; Fri Feb 18, 1994
-
-;; Added a bit more sophistication to ediff-read-file-name. Now,
-;; ediff-files remembers both, the file-A and the file-B directories.
-;; They are offered as defaults when ediff-use-last-dir is set to t.
-
-;; Fri Feb 22, 1994
-
-;; Added ediff-before-change-guard to remove ASCII highlighting when
-;; the user attempts to change buffer-A/B. This is needed because
-;; otherwise the undo info may become screwed up in those buffers.
-;; Hitting `h' (ediff-toggle-hilit) on a dumb terminal will toggle
-;; between ASCII highlighting and no highlighting.
-
-;; Fri Feb 24, 1994
-
-;; Fixed problems with multiple Ediff sessions running simultaneously.
-
-;; Tue Mar 1, 1994
-
-;; Added vc-ediff, the Ediff interface to vc.el. (Thanks to Eric
-;; Freudenthal <freudent@jan.ultra.nyu.edu> for contributing this
-;; function.)
-
-;; Sun Mar 6, 1994
-
-;; Added rcs-ediff, an Ediff interface to RCS via rcs.el. (Thanks to
-;; Alastair Burt <burt@dfki.uni-kl.de>.)
-;; Some minor improvements.
-
-;; Tue March 15, 1994
-
-;; Fixed a buglet in defining ediff-current-diff-face-A/B.
-;; (Thanks to Job Ganzevoort <Job.Ganzevoort@cwi.nl>.)
-
-;; Tue March 22, 1994
-
-;; Fixed a bug with ediffing narrowed buffers, reported by Kevin
-;; Broadey <KevinB@bartley.demon.co.uk>.
-;; Made Ediff to work with files that have incomplete last line.
-;; Made Ediff execute diff and patch using Bourne Shell, which
-;; should eliminate problems with $prompt that some people had.
-
-;; Thu March 24, 1994
-
-;; Achieved quadratic speedup in the size of the file by replacing the
-;; slow goto-line by forward-line.
-;; Converted demarkation of difference regions
-;; from markers to overlays. This will later allow us to highlight all
-;; diffs, not just the current one.
-
-;; Wed March 30, 1994
-
-;; Under X, Ediff now highlights all differences in dim colors and the
-;; current difference in bright colors. Improved XEmacs support.
-;; Changed toggle hilit to cycle through 3 states: highlighting all
-;; diffs, highlighting only the current diff, and highlighting using
-;; ASCII flags.
-;; Added support for difference regions that are not full lines.
-
-;; Fri April 1, 1994
-
-;; Fixed bugs related to writing buffers A and B.
-;; Added commands `ga', `gb' to jump directly to the closest diff in
-;; buffer A and B, respectively.
-
-;; Fri April 11, 1994
-
-;; Added `ediff-update-diffs', a function that lets the user recompute
-;; difference regions after extensive editing done to buffers A and B
-;; (bound to `!').
-
-;; Wed April 13, 1994
-
-;; Added the new feature: refining the current difference region.
-;; This would highlight the precise differences between the regions in
-;; buffer A and B. (A way to implement this was suggested by Boris
-;; Goldowsky <boris@cs.rochester.edu>.)
-;;
-;; Fixed Ediff to be immune to several different versions of rcs.el
-;; that are currently in distribution.
-
-;; Thu April 14, 1994
-
-;; Ediff now respects X resources for the faces it uses. It no longer
-;; barks when the colormap has no colors it is using; or when face
-;; fonts can't be italicized, etc.
-
-;; Fri April 15, 1994
-
-;; Changed `ediff-setup-windows' to minimize the need to delete and
-;; create windows. Now jumps faster from diff to diff.
-;; Added Ediff to the File menu on the menu bar (FSF's version).
-
-;; Mon April 18, 1994
-
-;; Fixed to work with OS/2's PM-Emacs.
-
-;; Thu April 21, 1994
-
-;; Lemacs' menus added (thanks to Alastair Burt for the help).
-
-;; Wed April 28, 1994
-
-;; Fixed ediff-keep-window-config (thanks to Norbert Kiesel
-;; <norbert@i3.informatik.rwth-aachen.de>), ediff-shell and
-;; ediff-protect-metachars (thanks to Richard Stanton
-;; <stanton@haas.berkeley.edu>). Made access to difference
-;; overlays structure-independent, making it less bug-prone.
-;; Patched ediff-read-file-name to work more intuitively with directory
-;; names (thanks to Kevin Broadey <KevinB@bartley.demon.co.uk>).
-
-;; Mon May 2, 1994
-
-;; Added `ediff-frame-has-menubar' to guard against the possibility that
-;; the current frame has no menu bar.
-
-;; Fri May 6, 1994
-
-;; Fixed buglet in vc-ediff (thanks to Ray Nickson <nickson@cs.uq.oz.au>).
-
-;; Wed May 18, 1994
-
-;; Modified ediff-read-file-name to not put long file names in the
-;; default prompt area, as suggested by KevinB@bartley.demon.co.uk.
-;; Applied patch supplied by burt@dfki.uni-kl.de, fixing a problem with
-;; ediff-diff-to-diff in Lemacs.
-
-;; Tue May 31, 1994
-
-;; Added ediff-forward-word-function (as suggested by Job Ganzevoort
-;; <Job.Ganzevoort@cwi.nl>).
-
-;; Thu Jun 2, 1994
-
-;; Added `ediff-toggle-regexp-match', which allows the user to step
-;; through only those difference regions that match some regexp; or,
-;; vice versa, to skip over regions that match a regexp. (This feature
-;; was suggested by Andy Scott <ascott@pcocd2.intel.com>.)
-;; Added ediff-eval-in-buffer, which is a modified emerge-eval-in-buffer.
-;; The function ediff-status-info, bound to `i', now replaces and extends
-;; ediff-file-names and ediff-line-numbers, which were bound to `f'
-;; and `i', respectively.
-
-
-;; Wed Jun 10, 1994
-
-;; Improved `ediff-read-file-name' and `ediff-buffers' so they are now
-;; providing more intuitive defaults. Modified `ediff-read-file-name'
-;; so it won't cause problems under OS/2.
-
-;; Fri Jun 24, 1994
-
-;; Modified ediff-find-file, ediff-files-internal, and made
-;; emerge-verify-file-buffer into ediff-verify-file-buffer so that
-;; Ediff will work correctly with remote and compressed
-;; files. (Suggested by Sandy Rutherford <sandy@ibm550.sissa.it>.)
-
-;; Fri Jun 28, 1994
-
-;; Fixed ediff-patch-files to work with remote and compressed files.
-
-;; Wed July 20, 1994
-
-;; Changed menu bar items per RMS's suggestion. Changed odd/even faces
-;; in Lemacs to italic. Changed ediff-*-face-* variables so that they
-;; will contain names of faces instead of the face internal
-;; representation. (Copy-face works better with face names than with
-;; face internal representation. With face internal representation, if
-;; a face vector mentions a font explicitly, copy-face may attempt to
-;; copy this font, which would cause an error if the font has a wrong
-;; size for one of the existing frames.) Improved the way
-;; mode-line-buffer-identification is set in ediff-setup so that Ediff
-;; will accommodate the way buffers are identified in mode-line.el and
-;; uniquify.el.
-
-;; Fri August 5, 1994
-
-;; Ediff can now automatically skip over regions that differ only in
-;; the white space and line breaks. This is controled with the variable
-;; `ediff-ignore-similar-regions' and can be toggled on/off by typing
-;; `##'.
-
-;; Mon August 8, 1994
-
-;; If ediff-save-buffer is invoked with `wd', it'll save the diff
-;; output in a file.
-
-;; Wed August 24, 1994
-
-;; Fixed ediff-toggle-read-only and ediff-patch-file so that they will
-;; check out version-controled files before modifying them. This will
-;; permit checking the modified versions back in. In earlier
-;; versions, such modifications could be lost, unless the user takes
-;; special care of preserving them.
-
-;; Tue August 30, 1994
-
-;; Added ediff-submit-report.
-;; Introduced ediff-revision as a uniform way of calling vc.el and
-;; rcs.el. This is controled by ediff-version-control-package
-;; variable. Functions vc-ediff, rcs-ediff are replaced by their
-;; internal versions.
-
-;; Thu September 1, 1994
-
-;; Made ediff-overlay-put and ediff-move-overlay into bona fide
-;; functions (rather than fset symbols). These now check if overlay's
-;; buffer is alive. If not, overlay is deleted. This overcomes some of
-;; the problems with Lemacs.
-
-;; Thu September 8, 1994
-
-;; Added ediff-revision-key, ediff-load-version-control and streamlined
-;; vc/rcs-ediff[-internal]. Eliminated dependency on emerge.el.
-
-;; Fri September 23, 1994
-
-;; Added ediff-windows and ediff-regions.
-;; Changed ediff-setup-windows and related procedures to create
-;; a separate dedicated control frame for each invocation of Ediff.
-
-;; Tue September 27, 1994
-
-;; Added redraw-display everywhere before creating or deleting
-;; frames. It appears that this cures Emacs' bug where it trashes some
-;; fonts which leads to crashes. Also, some code cleanups and bug fixes.
-
-;; Fri September 30, 1994
-
-;; Fixed ediff-update-diffs so it'll work correctly with
-;; ediff-windows and ediff-regions. Added narrowing and widening to the
-;; suite of commands available for ediff-windows and ediff-regions.
-
-;; Fri October 7, 1994
-
-;; Changed ediff-setup-windows to funcall the actual window setting
-;; function, which is either ediff-setup-windows-multiframe or
-;; ediff-setup-windows-plain. Changed all temp file names to use `_'
-;; instead of `.'. Presumably, this makes VMS happier.
-;; Ported to VMS (thanks to Richard Levitte <levitte@e.kth.se>).
-;; Added ediff-prefer-long-help-message and changed defaults.
-;; Fighting with XEmacs bugs. Made it possible to switch between plain
-;; and multiframe display easier, but XEmacs is still getting confused
-;; at times. Added ediff-check-version and ediff-set-help-message.
-;; Made more sensible temp file names, which is important when
-;; generating context diffs. Added ediff-make-frame-position and
-;; ediff-control-frame-position-function.
-
-;; Wed October 12, 1994
-
-;; ediff-window-visible-p now makes a call to frame-visible-p
-;; only when window-system is non-nil. Rearranged the block of fset's
-;; so that the wrong things won't be defined when window-system is nil.
-;; Added ediff-revert-buffers-then-recompute-diffs function.
-;; Removed flag-argument from a background call to shell-command.
-;; Added ediff-shell-command to enable custom diff execute in the
-;; background and insert output in ediff-custom-diff-buffer.
-;; Added ediff-shell-command-filter, because XEmacs doesn't have it.
-;; Made ediff-revision set up ediff-job-name to `ediff-revision'.
-;; This enables users do ediff-revision-specific actions on exiting
-;; Ediff using ediff-quit-hooks.
-;; Reshaffled some fset's so that functions for checking color and
-;; faces won't be touched on a non-windowing display.
-
-;; Thu October 20, 1994
-
-;; Modified ediff-make-fine-diffs so that no fine diffs are computed if
-;; one of the diff regions is empty. Saves time and also works around
-;; the buggy diff program in AIX.
-;; ediff no longer loads the version control package
-;; automatically---only when ediff-revision is called.
-;; Enabled focusing/hiding diff regions that match both or just one of the
-;; regexps.
-;; Changed ediff-regions to ediff-small-regions. Added ediff-large-regions.
-;; Modified ediff-next/previous-difference to work right when both
-;; skipping regexp matches and skipping similar regions is enabled.
-;; Fixed bugs in positioning the control frame.
-
-;; Fri October 28, 1994
-
-;; Fixed bugs in ediff-next/previous-difference, ediff-set-visible-region
-;; Changed/added ediff-word-[1-4].
-
-;; Tue November 1, 1994
-
-;; Made ediff-revision delete the temporary version files it creates.
-
-;; Tue November 29, 1994
-
-;; Added ediff-swap-buffers. Split ediff-difference-vector into
-;; ediff-difference-vector-A and ediff-difference-vector-B, which
-;; allowed to factor out a lot of stuff.
-;; Made the code buffer-C ready.
-
-;; Thu December 1, 1994
-
-;; Lotsa bug fixes. Further rationalized the code.
-;; Added ediff-display-help-hooks, ediff-mode-hooks.
-;; Replaced almost identical ediff-scroll-up/down with
-;; ediff-scroll-vertically.
-;; Replaced almost identical ediff-scroll-left/right with
-;; ediff-scroll-horizontally.
-;; Made the code buffer-C ready.
-
-;; Thu December 8, 1994
-
-;; Added ediff-toggle-wide-display. In plain display, help message is
-;; now centered correctly.
-
-;; Fri December 9, 1994
-
-;; Added ediff-toggle-multiframe.
-;; Fixed ediff-pop-diff and ediff-copy-diff, so that they will
-;; invoke auto-refining, if necessary.
-
-;; Mon December 12, 1994
-
-;; Modified ediff-toggle-wide-display so it would funcall
-;; ediff-make-wide-display-function.
-
-;; Tue December 13, 1994
-
-;; Ediff now chooses its surrogate minibuffer from frame A.
-
-;; Mon December 20, 1994
-
-;; Added ediff-keymap-setup-hooks.
-
-;; Fri December 23, 1994
-
-;; Changed the representation in ediff-killed-diffs-alist so that
-;; ediff-save-diff-region and ediff-pop-diff won't be confused when the
-;; user swaps buffers.
-
-;; Mon December 26, 1994
-
-;; Placated OS/2 by making Ediff to synchronize the call to startup
-;; hooks with the acynchronous process that computes custom diffs.
-;; This has no effect on Unix installations (and VMS?), but
-;; may increase Ediff's startup time under OS/2 by 1 or 2 seconds.
-
-;; Thu December 29, 1994
-
-;; ediff-recenter now deactivates the mark, so that transient mark mode
-;; highlighting won't interfere with Ediff's highlighting.
-;; Also, ediff-recenter tries to not deiconify control frame, if it is
-;; not needed.
-
-;; Fri December 30, 1994
-
-;; Small bugs. Worked around the OS/2 bug where
-;; modify-frame-parameters has no effect on iconified frames. Ediff
-;; now remembers the iconification status of the control frame and uses
-;; it as a preferred way of displaying it when help is toggled
-;; off. (This can be observed only in Emacs (not XEmacs) and only if
-;; the window manager lets icons accept keyboard input.)
-
-;; Tue January 3, 1995
-
-;; Some futher work on incorporating buffer C in ediff-extract-diffs,
-;; ediff-focus/hide-on-regexp-matches, and
-;; ediff-setup-windows-plain/multiframe. The preceding two functions
-;; now dispatch the appropriate setup function depending on whether the
-;; current job is comparison or merge.
-
-;; Wed January 4, 1995
-
-;; Made it work under Emacs built without the X support.
-
-;; Fri January 6, 1995
-
-;; Slightly changed the prompting behavior of ediff-files. Bug fix in
-;; mode-line-buffer-identification.
-
-;; Wed January 18, 1995
-
-;; Added 3way comparison and support for diff3. Ported to NeXTStep
-;;
-;; Fri January 20, 1995
-
-;; Added ediff-merge-files, ediff-merge-buffers,
-;; ediff-merge-files-with-ancestor, ediff-merge-buffers-with-ancestor,
-;; ediff-merge-revisions, ediff-merge-revisions-with-ancestor.
-
-;; Tue January 24, 1995
-
-;; Bug fixes. Split into several files.
-
-;; Thu January 26, 1995
-
-;; `*' is now bound to ediff-make-or-kill-fine-diffs. This lets the
-;; user to kill fine diffs for the current region (by providing a
-;; negative prefix arg), if there are so many of them as to hamper
-;; the viewing.
-
-;; Mon January 30, 1995
-
-;; Changed ediff-selective-display to ediff-set-visible-region,
-;; ediff-toggle-selective-display to ediff-toggle-narrow-region.
-;; Ediff now turns selective display off before starting. Restores
-;; selective display on exit.
-;; In 2-way comparison, `a' now copies to buf `b' and `b' to buf `a'.
-;; Previously, the bindings were `ab' and `ba'.
-
-;; Wed February 1, 1995
-
-;; Added ediff-undo-selective-display (thanks to Stig <stig@hackvan.com>).
-;; Rearranged autoloads. Renamed ediff-entry.el into ediff.el and
-;; ediff.el into ediff-util.el.
-
-;; Fri February 3
-
-;; Added ediff-toggle-show-clashes-only, which is bound to `$'.
-
-;; Fri February 19
-
-;; Some minor patches from Stig. Also, made ediff-xemacs-p and
-;; ediff-*-job into variables for better performance.
-;; In ediff-setup, diff regions are now computed after buffers A/B/C
-;; are set up. Previously, it didn't work right with selective display.
-;; Also, added ediff-profile to time Ediff commands and
-;; ediff-debug-info for civilized display of the difference vectors
-;; (and possibly more in the future).
-
-;; Tue March 18
-
-;; Fixed ediff-diff-at-point and ediff-toggle-multiframe.
-;; Added ediff-destroy-control-frame, ediff-window-display-p. The latter
-;; replaces window-system in many cases. Needed because in XEmacs 19.12
-;; window-system returns 'tty on a tty display.
-;; Converted xemacs *screen* nomenclature to *frame*.
-;; Made ediff-patch-buffer cope with buffers that don't visit any file.
-;; Fixed ediff-toggle-read-only so it knows the difference between
-;; version-controlled files and others. It also knows whether we are using
-;; patch or not.
-;; Renamed ediff-windows to ediff-windows-wordwise, added
-;; ediff-windows-linewise. Changed ediff-small/large-regions to
-;; ediff-regions-wordwise/linewise
-
-;; Tue May 2
-
-;; Added ediff-documentation. Fixes for XEmacs 19.12.
-;; Merge buffer now assumes the major mode of ediff-default-variant.
-
-;; Mon May 31, 1995
-
-;; Ediff-revision now takes a prefix argument. Can compare two versions of
-;; the same file. Cleaned up ediff-make-control-frame.
-;; Fixed a bug in ediff-get-visible-buffer-window.
-;; Added ediff-cleanup-hooks, ediff-janitor.
-;; ediff-cleanup-hooks is called before ediff-quit-hooks.
-
-
-;;; TO DO:
-;; ------
-;;
-;; 1. Add support for multiple sessions. (At present, one can run
-;; multiple Ediff sessions, but they won't be related.) The idea is to
-;; have vars local to each control buffer, which will tell which buffer is
-;; the next and which is the previous one. The user could then go forward
-;; and backward by typing C-SPC and C-DEL (or C-n and C-p).
-;; This will probably entail some minor modifications to ediff-setup.
-;; The primary use of this feature would be comparing directories of
-;; similarly named files and multi-file patch. For the latter, Ediff will
-;; have to parse patches to extract the names of files.
-
;;; Acknowledgements:
-;; Special thanks to Alastair Burt <burt@dfki.uni-kl.de>, Kevin Broadey
-;; <KevinB@bartley.demon.co.uk>, Harald Boegeholz
-;; <hwb@machnix.mathematik.uni-stuttgart.de>, Jin S. Choi" <jin@atype.com>,
-;; Eric Eide <eeide@asylum.cs.utah.edu>, Kevin Esler <esler@ch.hp.com>, Robert
-;; Estes <estes@ece.ucdavis.edu>, Eric Freudenthal
-;; <freudent@jan.ultra.nyu.edu>,
-;; Job Ganzevoort <Job.Ganzevoort@cwi.nl>, Boris Goldowsky
-;; <boris@cs.rochester.edu>, Allan Gottlieb <gottlieb@allan.ultra.nyu.edu>,
-;; Xiaoli Huang <hxl@epic.com>, Larry Gouge <larry@itginc.com>,
-;; Karl Heuer <kwzh@gnu.ai.mit.edu>, <irvine@lks.csi.com>,
-;; <jaffe@chipmunk.cita.utoronto.ca>, David Karr
-;; <dkarr@nmo.gtegsc.com>, Norbert Kiesel
-;; <norbert@i3.informatik.rwth-aachen.de>, Fritz Knabe <Fritz.Knabe@ecrc.de>,
-;; Heinz Knutzen <hk@informatik.uni-kiel.d400.de>, Ken Laprade
-;; <laprade@dw3f.ess.harris.com>, Richard Levitte
-;; <levitte@e.kth.se>, Martin Maechler <maechler@stat.math.ethz.ch>,
-;; Richard Mlynarik <mly@adoc.xerox.com>, Chris Murphy
-;; <murphycm@sun.aston.ac.uk>, Eyvind Ness <Eyvind.Ness@hrp.no>, Ray Nickson
-;; <nickson@cs.uq.oz.au>, Paul Raines <raines@slac.stanford.edu>, Tibor
-;; Polgar <tlp00@spg.amdahl.com>, C.S. Roberson <roberson@aur.alcatel.com>,
-;; Kevin Rodgers <kevin.rodgers@ihs.com>, Sandy Rutherford
-;; <sandy@ibm550.sissa.it>, Heribert Schuetz <schuetz@ecrc.de>, Andy Scott
-;; <ascott@pcocd2.intel.com>, Axel Seibert
-;; <axel@tumbolia.ppp.informatik.uni-muenchen.de>, Richard Stallman
-;; <rms@gnu.ai.mit.edu>, Richard Stanton <stanton@haas.berkeley.edu>,
-;; Ake Stenhoff <etxaksf@aom.ericsson.se>,
-;; Stig <stig@hackvan.com>, Peter Stout <Peter_Stout@cs.cmu.edu>,
-;; Raymond Toy <toy@rtp.ericsson.se>,
-;; and Ilya Zakharevich <ilya@math.ohio-state.edu>
-;; for contributing ideas, patches, and bug reports.
-;;
-;; Thanks also to many others who felt obliged to drop a thank you note.
+;; Ediff was inspired by Dale R. Worley's <drw@math.mit.edu> emerge.el.
+;; Ediff would not have been possible without the help and encouragement of
+;; its many users. See Ediff on-line Info for the full list of those who
+;; helped. Improved defaults in Ediff file-name reading commands.
;;; Code:
(require 'ediff-init)
+(require 'ediff-meta)
-(defvar ediff-version-control-package 'vc
- "Version control package used.
-Currently, Ediff supports vc.el and rcs.el. Set this to `rcs' if you have
-rcs.el and want to use it instead of the standard vc.el.
-
-Note: both packages provide access to RCS, but only vc.el comes with Emacs
-distribution.")
-
-(defvar ediff-revision-key nil
- "Key to which `ediff-revision' is to be bound.")
-
(defvar ediff-use-last-dir nil
"*If t, Ediff uses previous directory as default when reading file name.")
;;; Patching
+(defvar ediff-backup-extension
+ (if (memq system-type '(vax-vms axp-vms emx ms-dos windows-nt windows-95))
+ "_orig" ".orig")
+ "Default backup extension for the patch program.")
+
;;;###autoload
(defun ediff-patch-file (source-filename &optional startup-hooks job-name)
"Run Ediff by patching FILE-TP-PATCH."
;; This now returns the control buffer
(interactive
- (list (ediff-read-file-name "File to patch"
- (if ediff-use-last-dir
- ediff-last-dir-patch
- default-directory)
- nil)))
+ (list (ediff-read-file-name
+ "File to patch"
+ (if ediff-use-last-dir
+ ediff-last-dir-patch
+ default-directory)
+ (ediff-get-default-file-name))))
(setq source-filename (expand-file-name source-filename))
(ediff-get-patch-buffer
(let* ((backup-extension
;; if the user specified a -b option, extract the backup
- ;; extension from there; else use `_orig'
+ ;; extension from there; else use ediff-backup-extension
(substring ediff-patch-options
(if (string-match "-b[ \t]+" ediff-patch-options)
(match-end 0) 0)
(target-filename source-filename)
target-buf buf-to-patch file-name-magic-p ctl-buf)
- ;; if the user didn't specify a backup extension, use _orig
+ ;; if the user didn't specify a backup extension, use
+ ;; ediff-backup-extension
(if (string= backup-extension "")
- (setq backup-extension "_orig"))
+ (setq backup-extension ediff-backup-extension))
;; Make a temp file, if source-filename has a magic file handler (or if
;; it is handled via auto-mode-alist and similar magic).
(ediff-toggle-read-only buf-to-patch))
(ediff-eval-in-buffer ediff-patch-diagnostics
- (message "Applying patch ... ")(sit-for 0)
+ (message "Applying patch ... ")
+ ;;(sit-for 0)
;; always pass patch the -f option, so it won't ask any questions
(shell-command-on-region
(point-min) (point-max)
backup-extension
(expand-file-name true-source-filename))
t))
- (message "Applying patch ... done")(sit-for 0)
+ ;;(message "Applying patch ... done")(sit-for 0)
(switch-to-buffer ediff-patch-diagnostics)
- (sit-for 0) ; synchronize
+ (sit-for 0) ; synchronize - let the user see diagnostics
(or (file-exists-p (concat true-source-filename backup-extension))
(error "Patch failed or didn't modify the original file"))
(setq ctl-buf
(ediff-buffers-internal
buf-to-patch target-buf nil
- startup-hooks '(or job-name ediff-patch-file)))
+ startup-hooks (or job-name 'ediff-patch-file)))
(bury-buffer ediff-patch-diagnostics)
(message "Patch diagnostics are available in buffer %s"
(ediff-eval-in-buffer ediff-buffer-A
(toggle-read-only 1)))
+;; Return a plausible default for ediff's first file:
+;; In dired, return the file name under the point, unless it is a directory
+;; If the buffer has a file name, return that file name.
+(defun ediff-get-default-file-name ()
+ (cond ((eq major-mode 'dired-mode)
+ (let ((f (dired-get-filename nil 'no-error)))
+ (if (and (stringp f) (not (file-directory-p f)))
+ f)))
+ ((buffer-file-name (current-buffer))
+ (file-name-nondirectory (buffer-file-name (current-buffer))))
+ ))
+
;;;###autoload
(defalias 'epatch 'ediff-patch-file)
;;;###autoload
ediff-last-dir-A
default-directory))
dir-B f)
- (list (setq f (ediff-read-file-name "File A to compare" dir-A nil))
+ (list (setq f (ediff-read-file-name
+ "File A to compare" dir-A
+ (ediff-get-default-file-name)))
(ediff-read-file-name "File B to compare"
(setq dir-B
(if ediff-use-last-dir
(file-name-directory f)))
(progn
(setq file-name-history
- (cons (abbreviate-file-name
+ (cons (ediff-abbreviate-file-name
(expand-file-name
(file-name-nondirectory f)
dir-B))
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 nil))
+ (list (setq f (ediff-read-file-name
+ "File A to compare" dir-A
+ (ediff-get-default-file-name)))
(setq ff (ediff-read-file-name "File B to compare"
(setq dir-B
(if ediff-use-last-dir
(progn
(setq file-name-history
(cons
- (abbreviate-file-name
+ (ediff-abbreviate-file-name
(expand-file-name
(file-name-nondirectory f)
dir-B))
(file-name-directory ff)))
(progn
(setq file-name-history
- (cons (abbreviate-file-name
+ (cons (ediff-abbreviate-file-name
(expand-file-name
(file-name-nondirectory ff)
dir-C))
(let* ((file (symbol-value file-var))
(file-magic (find-file-name-handler file 'find-file-noselect))
(temp-file-name-prefix (file-name-nondirectory file)))
- (if (not (file-readable-p file))
- (error "File `%s' does not exist or is not readable" 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)))
;; some of the command, below, require full file name
(setq file (expand-file-name file))
(cond (file-magic ;; file has handler, such as jka-compr-handler or
;; ange-ftp-hook-function--arrange for temp file
(ediff-verify-file-buffer 'magic)
- (setq file (ediff-make-temp-file temp-file-name-prefix))
+ (setq file
+ (ediff-make-temp-file
+ (current-buffer) temp-file-name-prefix))
(set hooks-var (cons (` (lambda () (delete-file (, file))))
(symbol-value hooks-var))))
;; file processed via auto-mode-alist, a la uncompress.el
((not (equal (file-truename file)
(file-truename (buffer-file-name))))
- (setq file (ediff-make-temp-file temp-file-name-prefix))
+ (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 ;; plain file---just check that the file matches the buffer
(defun ediff-files-internal (file-A file-B file-C startup-hooks job-name)
(let (buf-A buf-B buf-C)
- (message "Reading file %s ... " file-A)(sit-for 0)
+ (message "Reading file %s ... " file-A)
+ ;;(sit-for 0)
(ediff-find-file 'file-A 'buf-A 'ediff-last-dir-A 'startup-hooks)
- (message "Reading file %s ... " file-B)(sit-for 0)
+ (message "Reading file %s ... " file-B)
+ ;;(sit-for 0)
(ediff-find-file 'file-B 'buf-B 'ediff-last-dir-B 'startup-hooks)
- (if (and (stringp file-C) (not ediff-merge-job))
+ (if (stringp file-C)
(progn
- (message "Reading file %s ... " file-C)(sit-for 0)
+ (message "Reading file %s ... " file-C)
+ ;;(sit-for 0)
(ediff-find-file
'file-C 'buf-C
(if (eq job-name 'ediff-merge-files-with-ancestor)
(if (stringp buf-C-file-name)
(setq buf-C-file-name (file-name-nondirectory buf-C-file-name)))
- ;; these three need to be evaluated in their buffers, since
- ;; ediff-make-temp-file checks the current buffer when assigning file
- ;; names
- (ediff-eval-in-buffer buf-A
- (setq file-A (ediff-make-temp-file buf-A-file-name)))
- (ediff-eval-in-buffer buf-B
- (setq file-B (ediff-make-temp-file buf-B-file-name)))
+ (setq file-A (ediff-make-temp-file buf-A buf-A-file-name))
+ (setq file-B (ediff-make-temp-file buf-B buf-B-file-name))
(if buf-C-is-alive
- (ediff-eval-in-buffer buf-C
- (setq file-C (ediff-make-temp-file buf-C-file-name))))
+ (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
startup-hooks)
(list (cons 'ediff-job-name job-name))
)))
-
+
+
+;;; Directory and file group operations
+
+;; Get appropriate default name for directory:
+;; If ediff-use-last-dir, use ediff-last-dir-A.
+;; In dired mode, use the directory that is under the point (if any);
+;; otherwise, use default-directory
+(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)))
+
+
+;;;###autoload
+(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 a regular expression that
+further filters the file names."
+ (interactive
+ (let ((dir-A (ediff-get-default-directory-name))
+ f)
+ (list (setq f (ediff-read-file-name "Directory A to compare" dir-A nil))
+ (ediff-read-file-name "Directory B to compare"
+ (if ediff-use-last-dir
+ ediff-last-dir-B
+ (ediff-strip-last-dir f))
+ nil)
+ (read-string "Filter through regular expression: "
+ nil ediff-filtering-regexp-history)
+ )))
+ (ediff-directories-internal
+ dir1 dir2 nil regexp 'ediff-files 'ediff-directories
+ ))
+
+;;;###autoload
+(defalias 'edirs 'ediff-directories)
+
+
+;;;###autoload
+(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)))
+ (list (ediff-read-file-name
+ "Directory to compare with revision" dir-A nil)
+ (read-string "Filter through regular expression: "
+ nil ediff-filtering-regexp-history)
+ )))
+ (ediff-directory-revisions-internal
+ dir1 regexp 'ediff-revision 'ediff-directory-revisions
+ ))
+
+;;;###autoload
+(defalias 'edir-revisions 'ediff-directory-revisions)
+
+
+;;;###autoload
+(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 a regular
+expression that further filters the file names."
+ (interactive
+ (let ((dir-A (ediff-get-default-directory-name))
+ f)
+ (list (setq f (ediff-read-file-name "Directory A to compare" dir-A nil))
+ (setq f (ediff-read-file-name "Directory B to compare"
+ (if ediff-use-last-dir
+ ediff-last-dir-B
+ (ediff-strip-last-dir f))
+ nil))
+ (ediff-read-file-name "Directory C to compare"
+ (if ediff-use-last-dir
+ ediff-last-dir-C
+ (ediff-strip-last-dir f))
+ nil)
+ (read-string "Filter through regular expression: "
+ nil ediff-filtering-regexp-history)
+ )))
+ (ediff-directories-internal
+ dir1 dir2 dir3 regexp 'ediff-files3 'ediff-directories3
+ ))
+
+;;;###autoload
+(defalias 'edirs3 'ediff-directories3)
+
+;;;###autoload
+(defun ediff-merge-directories (dir1 dir2 regexp)
+ "Run Ediff on a pair of directories, DIR1 and DIR2, merging files that have
+the same name in both. The third argument, REGEXP, is a regular expression that
+further filters the file names."
+ (interactive
+ (let ((dir-A (ediff-get-default-directory-name))
+ f)
+ (list (setq f (ediff-read-file-name "Directory A to merge" dir-A nil))
+ (ediff-read-file-name "Directory B to merge"
+ (if ediff-use-last-dir
+ ediff-last-dir-B
+ (ediff-strip-last-dir f))
+ nil)
+ (read-string "Filter through regular expression: "
+ nil ediff-filtering-regexp-history)
+ )))
+ (ediff-directories-internal
+ dir1 dir2 nil regexp 'ediff-merge-files 'ediff-merge-directories
+ ))
+
+;;;###autoload
+(defalias 'edirs-merge 'ediff-merge-directories)
+
+;;;###autoload
+(defun ediff-merge-directories-with-ancestor (dir1 dir2 dir3 regexp)
+ "Run Ediff on a pair of directories, DIR1 and DIR2, merging files that have
+the same name in both. The third argument, REGEXP, is a regular expression that
+further filters the file names."
+ (interactive
+ (let ((dir-A (ediff-get-default-directory-name))
+ f)
+ (list (setq f (ediff-read-file-name "Directory A to merge" dir-A nil))
+ (setq f (ediff-read-file-name "Directory B to merge"
+ (if ediff-use-last-dir
+ ediff-last-dir-B
+ (ediff-strip-last-dir f))
+ nil))
+ (ediff-read-file-name "Ancestor directory: "
+ (if ediff-use-last-dir
+ ediff-last-dir-C
+ (ediff-strip-last-dir f))
+ nil)
+ (read-string "Filter through regular expression: "
+ nil ediff-filtering-regexp-history)
+ )))
+ (ediff-directories-internal
+ dir1 dir2 dir3 regexp
+ 'ediff-merge-files-with-ancestor 'ediff-merge-directories-with-ancestor
+ ))
+
+;;;###autoload
+(defun ediff-merge-directory-revisions (dir1 regexp)
+ "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)))
+ (list (ediff-read-file-name
+ "Directory to merge with revisions" dir-A nil)
+ (read-string "Filter through regular expression: "
+ nil ediff-filtering-regexp-history)
+ )))
+ (ediff-directory-revisions-internal
+ dir1 regexp 'ediff-merge-revisions 'ediff-merge-directory-revisions
+ ))
+
+;;;###autoload
+(defalias 'edir-merge-revisions 'ediff-merge-directory-revisions)
+
+;;;###autoload
+(defun ediff-merge-directory-revisions-with-ancestor (dir1 regexp)
+ "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)))
+ (list (ediff-read-file-name
+ "Directory to merge with revisions and ancestors" dir-A nil)
+ (read-string "Filter through regular expression: "
+ nil ediff-filtering-regexp-history)
+ )))
+ (ediff-directory-revisions-internal
+ dir1 regexp 'ediff-merge-revisions-with-ancestor
+ 'ediff-merge-directory-revisions-with-ancestor
+ ))
+
+;;;###autoload
+(defalias
+ 'edir-merge-revisions-with-ancestor
+ 'ediff-merge-directory-revisions-with-ancestor)
+
+;;;###autoload
+(defalias 'edirs-merge-with-ancestor 'ediff-merge-directories-with-ancestor)
+
+;; Run ediff-action (ediff-files, ediff-merge, ediff-merge-with-ancestors)
+;; on a pair of directories (three directories, in case of ancestor).
+;; The third argument, REGEXP, is a regular expression that further filters the
+;; file names.
+;; JOBNAME is the symbol indicating the meta-job to be performed.
+(defun ediff-directories-internal (dir1 dir2 dir3 regexp
+ action jobname
+ &optional startup-hooks)
+ ;; ediff-read-file-name is set to attach a previously entered file name if
+ ;; the currently entered file is a directory. This code takes care of that.
+ (setq dir1 (if (file-directory-p dir1) dir1 (file-name-directory dir1))
+ dir2 (if (file-directory-p dir2) dir2 (file-name-directory dir2)))
+
+ (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)))
+
+ (let (diffs ; var where ediff-intersect-directories returns the diff list
+ file-list meta-buf)
+ (setq file-list (ediff-intersect-directories
+ jobname 'diffs regexp dir1 dir2 dir3))
+ (setq startup-hooks
+ ;; this sets various vars in the meta buffer inside
+ ;; ediff-prepare-meta-buffer
+ (cons (` (lambda ()
+ ;; tell what to do if the user clicks on a session record
+ (setq ediff-session-action-function (quote (, action)))
+ ;; set ediff-dir-difference-list
+ (setq ediff-dir-difference-list (quote (, diffs)))))
+ startup-hooks))
+ (setq meta-buf (ediff-prepare-meta-buffer
+ 'ediff-dir-action
+ file-list
+ "*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)
+ (setq dir1 (if (file-directory-p dir1) dir1 (file-name-directory dir1)))
+ (let (file-list meta-buf)
+ (setq file-list
+ (ediff-get-directory-files-under-revision jobname regexp dir1))
+ (setq startup-hooks
+ ;; this sets various vars in the meta buffer inside
+ ;; ediff-prepare-meta-buffer
+ (cons (` (lambda ()
+ ;; tell what to do if the user clicks on a session record
+ (setq ediff-session-action-function (quote (, action)))
+ ))
+ startup-hooks))
+ (setq meta-buf (ediff-prepare-meta-buffer
+ 'ediff-dir-action
+ file-list
+ "*Ediff Session Group Panel"
+ 'ediff-redraw-directory-group-buffer
+ jobname
+ startup-hooks))
+ (ediff-show-meta-buffer meta-buf)
+ ))
;;; Compare regions and windows
(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))
- (ediff-eval-in-buffer tmp-buffer
- (setq file-A (ediff-make-temp-file "regA")))
+ (setq file-A (ediff-make-temp-file tmp-buffer "regA"))
;; make file-B
(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))
- (ediff-eval-in-buffer tmp-buffer
- (setq file-B (ediff-make-temp-file "regB")))
+ (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-last-dir-A
default-directory))
dir-B f)
- (list (setq f (ediff-read-file-name "File A to merge" dir-A nil))
+ (list (setq f (ediff-read-file-name
+ "File A to merge" dir-A
+ (ediff-get-default-file-name)))
(ediff-read-file-name "File B to merge"
(setq dir-B
(if ediff-use-last-dir
(file-name-directory f)))
(progn
(setq file-name-history
- (cons (abbreviate-file-name
+ (cons (ediff-abbreviate-file-name
(expand-file-name
(file-name-nondirectory f)
dir-B))
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 nil))
+ (list (setq f (ediff-read-file-name
+ "File A to merge" dir-A
+ (ediff-get-default-file-name)))
(setq ff (ediff-read-file-name "File B to merge"
(setq dir-B
(if ediff-use-last-dir
(progn
(setq file-name-history
(cons
- (abbreviate-file-name
+ (ediff-abbreviate-file-name
(expand-file-name
(file-name-nondirectory f)
dir-B))
(file-name-directory ff)))
(progn
(setq file-name-history
- (cons (abbreviate-file-name
+ (cons (ediff-abbreviate-file-name
(expand-file-name
(file-name-nondirectory ff)
dir-ancestor))
;;;###autoload
-(defun ediff-merge-revisions (rev1 rev2 &optional startup-hooks)
+(defun ediff-merge-revisions (&optional file startup-hooks)
"Run Ediff by merging two revisions of a file.
-The file is the one visited by the current buffer."
- (interactive
- "sVersion 1 to merge (default is the latest version): \nsVersion 2 to merge (default is the latest version): ")
+The file is the optional FILE argument or the file visited by the current
+buffer."
+ (interactive)
(ediff-load-version-control)
- (let (buf1 buf2)
- (if (eq ediff-version-control-package 'vc)
- (progn
+ (if (stringp file) (find-file file))
+ (let (rev1 rev2 buf1 buf2)
+ (setq rev1
+ (read-string
+ (format
+ "Version 1 to merge (default: %s's latest 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"))))
+ (cond ((eq ediff-version-control-package 'vc)
(save-excursion
(vc-version-other-window rev1)
(setq buf1 (current-buffer)))
(save-excursion
- (vc-version-other-window rev2)
+ (or (string= rev2 "")
+ (vc-version-other-window rev2))
(setq buf2 (current-buffer)))
(setq startup-hooks
- (list (` (lambda ()
- (delete-file (, (buffer-file-name buf1)))
- (delete-file (, (buffer-file-name buf2))))))))
- (setq buf1 (rcs-ediff-view-revision rev1)
- buf2 (rcs-ediff-view-revision rev2)))
+ (cons
+ (` (lambda ()
+ (delete-file (, (buffer-file-name buf1)))
+ (or (, (string= rev2 ""))
+ (delete-file (, (buffer-file-name buf2))))))
+ startup-hooks)))
+ ((eq ediff-version-control-package 'rcs)
+ (setq buf1 (rcs-ediff-view-revision rev1)
+ buf2 (if (string= rev2 "")
+ (current-buffer)
+ (rcs-ediff-view-revision rev2))))
+ ((eq ediff-version-control-package 'generic-sc)
+ (save-excursion
+ (if (string= rev1 "")
+ (setq rev1 (generic-sc-get-latest-rev)))
+ (sc-visit-previous-revision rev1)
+ (setq buf1 (current-buffer)))
+ (save-excursion
+ (or (string= rev2 "")
+ (sc-visit-previous-revision rev2))
+ (setq buf2 (current-buffer))))
+ ) ; cond
(ediff-merge-buffers buf1 buf2 startup-hooks 'ediff-merge-revisions)))
;;;###autoload
-(defun ediff-merge-revisions-with-ancestor (rev1
- rev2 ancestor-rev
- &optional startup-hooks)
- "Run Ediff by merging with ancestor of two revisions of a file.
-The file is the one visited by the current buffer."
- (interactive
- "sVersion 1 to merge (default: the latest version): \nsVersion 2 to merge (default: the latest version): \nsAncestor version (default: the latest version): ")
+(defun ediff-merge-revisions-with-ancestor (&optional file startup-hooks)
+ "Run Ediff by merging two revisions of a file with a common ancestor.
+The file is the the optional FILE argument or the file visited by the current
+buffer."
+ (interactive)
(ediff-load-version-control)
- (let (buf1 buf2 ancestor-buf)
- (if (eq ediff-version-control-package 'vc)
- (progn
+ (if (stringp file) (find-file file))
+ (let (rev1 rev2 ancestor-rev buf1 buf2 ancestor-buf)
+ (setq rev1
+ (read-string
+ (format
+ "Version 1 to merge (default: %s's latest 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): "
+ (if (stringp file)
+ (file-name-nondirectory file) "current buffer"))))
+ (cond ((eq ediff-version-control-package 'vc)
(save-excursion
(vc-version-other-window rev1)
(setq buf1 (current-buffer)))
(save-excursion
- (vc-version-other-window rev2)
+ (or (string= rev2 "")
+ (vc-version-other-window rev2))
(setq buf2 (current-buffer)))
(save-excursion
- (vc-version-other-window ancestor-rev)
+ (or (string= ancestor-rev "")
+ (vc-version-other-window ancestor-rev))
(setq ancestor-buf (current-buffer)))
(setq startup-hooks
- (list (` (lambda ()
- (delete-file (, (buffer-file-name buf1)))
- (delete-file (, (buffer-file-name buf2)))
- (delete-file (, (buffer-file-name ancestor-buf)))
- )))))
- (setq buf1 (rcs-ediff-view-revision rev1)
- buf2 (rcs-ediff-view-revision rev2)
- ancestor-buf (rcs-ediff-view-revision ancestor-rev)))
+ (cons
+ (` (lambda ()
+ (delete-file (, (buffer-file-name buf1)))
+ (or (, (string= rev2 ""))
+ (delete-file (, (buffer-file-name buf2))))
+ (or (, (string= ancestor-rev ""))
+ (delete-file (, (buffer-file-name ancestor-buf))))))
+ startup-hooks)))
+ ((eq ediff-version-control-package 'rcs)
+ (setq buf1 (rcs-ediff-view-revision rev1)
+ buf2 (if (string= rev2 "")
+ (current-buffer)
+ (rcs-ediff-view-revision rev2))
+ ancestor-buf (if (string= ancestor-rev "")
+ (current-buffer)
+ (rcs-ediff-view-revision ancestor-rev))))
+ ((eq ediff-version-control-package 'generic-sc)
+ (save-excursion
+ (if (string= rev1 "")
+ (setq rev1 (generic-sc-get-latest-rev)))
+ (sc-visit-previous-revision rev1)
+ (setq buf1 (current-buffer)))
+ (save-excursion
+ (or (string= rev2 "")
+ (sc-visit-previous-revision rev2))
+ (setq buf2 (current-buffer)))
+ (save-excursion
+ (or (string= ancestor-rev "")
+ (sc-visit-previous-revision ancestor-rev))
+ (setq ancestor-buf (current-buffer))))
+ ) ; cond
(ediff-merge-buffers-with-ancestor
buf1 buf2 ancestor-buf
startup-hooks 'ediff-merge-revisions-with-ancestor)))
;;; Apply patch
-
;;;###autoload
(defun ediff-patch-buffer (buffer-name &optional startup-hooks)
(setq file-name file-name-ok)
(ediff-eval-in-buffer buffer-name
(setq default-dir default-directory)
- (setq file-name (ediff-make-temp-file))
+ (setq file-name (ediff-make-temp-file buffer-name))
(set-visited-file-name file-name)
(setq buffer-auto-save-file-name nil) ; don't create auto-save file
(rename-buffer buffer-name) ; don't confuse the user with new buf name
;;; Versions Control functions
;;;###autoload
-(defun ediff-revision (arg)
- "Call `vc.el' or `rcs.el' depending on `ediff-version-control-package'.
-Without prefix argument, compares the current buffer with an older version.
-With prefix argument, compares two older versions of the current 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 visited by the current
+buffer. Use `vc.el' or `rcs.el' depending on `ediff-version-control-package'."
+ ;; if buffer is non-nil, use that buffer instead of the current buffer
(interactive "P")
+ (if (stringp file) (find-file file))
(let (rev1 rev2)
- (if arg
- (setq rev1
- (read-string
- "This buffer's version-1 to compare (default: the latest version): ")
- rev2
- (read-string "This buffer's version-2 to compare (default: the latest version): "))
- (setq rev1
- (read-string "Version to compare the current buffer with (default: the latest version): ")))
+ (setq rev1
+ (read-string
+ (format "Version 1 to compare (default: %s's latest version): "
+ (if (stringp file)
+ (file-name-nondirectory file) "current buffer")))
+ rev2
+ (read-string
+ (format "Version 2 to compare (default: %s): "
+ (if (stringp file)
+ (file-name-nondirectory file) "current buffer"))))
(ediff-load-version-control)
(funcall
(intern (format "%S-ediff-internal" ediff-version-control-package))
- rev1 rev2)
+ rev1 rev2 startup-hooks)
))
-;; Backward compatibility
-;;;###autoload
-(defun vc-ediff ()
- (interactive)
- (beep 1)
- (with-output-to-temp-buffer ediff-msg-buffer
- (princ "
-You have invoked an obsolete function `vc-ediff' or `rcs-ediff'.
-Please use `M-x ediff-revision' instead.
-
-Also, please check the variables `ediff-version-control-package'
-and `ediff-revision-key' for customization.")))
-
-(defalias 'rcs-ediff 'vc-ediff)
;; Test if version control package is loaded and load if not
;; Is SILENT is non-nil, don't report error if package is not found.
(if (locate-library (symbol-name ediff-version-control-package))
(progn
(message "") ; kill the message from `locate-library'
- (require ediff-version-control-package)
- (if ediff-revision-key
- (define-key
- (cond ((eq ediff-version-control-package 'vc) vc-prefix-map)
- ((eq ediff-version-control-package 'rcs) global-map)
- (t global-map))
- ediff-revision-key 'ediff-revision)))
+ (require ediff-version-control-package))
(or silent
(error "Version control package %S.el not found. Use vc.el instead"
ediff-version-control-package)))))
-
+
-(defun vc-ediff-internal (rev1 &optional rev2)
+(defun vc-ediff-internal (rev1 rev2 &optional startup-hooks)
"Run Ediff on versions of the current buffer.
-If both REV1 and REV2 are given then these two versions are compared.
-If only REV1 is given then the current buffer is compared against version REV1.
+If REV2 is \"\" then compare current buffer with REV1.
If the current buffer is named `F', the version is named `F.~REV~'.
If `F.~REV~' already exists, it is used instead of being re-created."
- (let ((curbuf (current-buffer))
- (curwind (selected-window))
- file1 file2
- rev1buf rev2buf)
- (vc-version-other-window rev1)
- (setq rev1buf (current-buffer)
- file1 (buffer-file-name))
- (select-window curwind)
- (if (not (stringp rev2))
- (setq rev2buf curbuf)
- (vc-version-other-window rev2)
+ (let (file1 file2 rev1buf rev2buf)
+ (save-excursion
+ (vc-version-other-window rev1)
+ (setq rev1buf (current-buffer)
+ file1 (buffer-file-name)))
+ (save-excursion
+ (or (string= rev2 "") ; use current buffer
+ (vc-version-other-window rev2))
(setq rev2buf (current-buffer)
file2 (buffer-file-name)))
+ (setq startup-hooks
+ (cons (` (lambda ()
+ (delete-file (, file1))
+ (or (, (string= rev2 "")) (delete-file (, file2)))
+ ))
+ startup-hooks))
(ediff-buffers
rev1buf rev2buf
- (list (` (lambda ()
- (delete-file (, file1))
- (if (, file2) (delete-file (, file2)))
- )))
+ startup-hooks
'ediff-revision)))
(defun rcs-ediff-view-revision (&optional rev)
(erase-buffer))
buf))
-(defun rcs-ediff-internal (rev1 &optional rev2)
- "Run Ediff on the current buffer, comparing it with previous RCS revision."
- (let ((rev2buf (if (stringp rev2)
- (rcs-ediff-view-revision rev2)
- (current-buffer)))
+(defun rcs-ediff-internal (rev1 rev2 &optional startup-hooks)
+ "Run Ediff on versions of the current buffer.
+If REV2 is \"\" then use current buffer."
+ (let ((rev2buf (if (string= rev2 "")
+ (current-buffer)
+ (rcs-ediff-view-revision rev2)))
(rev1buf (rcs-ediff-view-revision rev1)))
;; rcs.el doesn't create temp version files, so we don't have to delete
;; anything in startup hooks to ediff-buffers
- (ediff-buffers rev1buf rev2buf nil 'ediff-revision)
+ (ediff-buffers rev1buf rev2buf startup-hooks 'ediff-revision)
))
-;;; Menu bar
+(defun generic-sc-get-latest-rev ()
+ (cond ((eq sc-mode 'CCASE)
+ (eval "main/LATEST"))
+ (t (eval "")))
+ )
-;;; This is split in several parts to avoid
-;;; making a line in loaddefs.el that is too long for patch.
-;;; Note that autoload.el currently looks for cookies
-;;; only at top level in the file.
-;;; So I moved these to top level. But the conditionals on
-;;; purify-flag make these no-ops when you load ediff.
-;;; They only do something in loaddefs.el.
-
-;;;###autoload
-(if purify-flag
- ;; explicit string-match, as ediff-xemacs-p is not defined at build time
- (if (string-match "\\(Lucid\\|Xemacs\\)" emacs-version)
- ()
- (defvar menu-bar-epatch-menu (make-sparse-keymap "Epatch"))
- (fset 'menu-bar-epatch-menu (symbol-value 'menu-bar-epatch-menu))
- (defvar menu-bar-ediff-merge-menu (make-sparse-keymap "Ediff merge"))
- (fset 'menu-bar-ediff-merge-menu
- (symbol-value 'menu-bar-ediff-merge-menu))
- (defvar menu-bar-ediff-menu (make-sparse-keymap "Ediff"))
- (fset 'menu-bar-ediff-menu (symbol-value 'menu-bar-ediff-menu))
- ))
-
-;;; These must be placed in menu-bar.el in Emacs
-;;
-;; (define-key menu-bar-tools-menu [epatch]
-;; '("Apply Patch" . menu-bar-epatch-menu))
-;; (define-key menu-bar-tools-menu [ediff-merge]
-;; '("Merge" . menu-bar-ediff-merge-menu))
-;; (define-key menu-bar-tools-menu [ediff]
-;; '("Compare" . menu-bar-ediff-menu))
-
-
-;;;###autoload
-(if purify-flag
- ;; explicit string-match, as ediff-xemacs-p is not defined at build time
- (if (string-match "\\(Lucid\\|Xemacs\\)" emacs-version)
- ()
- (define-key menu-bar-ediff-menu [ediff-revision]
- '("File with Revision ..." . ediff-revision))
- (define-key menu-bar-ediff-menu [separator-ediff-files] '("--"))
- (define-key menu-bar-ediff-menu [ediff-buffers3]
- '("Three Buffers ..." . ediff-buffers3))
- (define-key menu-bar-ediff-menu [ediff-files3]
- '("Three Files ..." . ediff-files3))
- (define-key menu-bar-ediff-menu [ediff-buffers]
- '("Two Buffers ..." . ediff-buffers))
- (define-key menu-bar-ediff-menu [ediff-files]
- '("Two Files ..." . ediff-files))
- ))
-
-;;;###autoload
-(if purify-flag
- ;; explicit string-match, as ediff-xemacs-p is not defined at build time
- (if (string-match "\\(Lucid\\|Xemacs\\)" emacs-version)
- ()
- (define-key menu-bar-ediff-menu [separator-ediff-regions] '("--"))
- (define-key menu-bar-ediff-menu [ediff-regions-linewise]
- '("Regions Line-by-line ..." . ediff-regions-linewise))
- (define-key menu-bar-ediff-menu [ediff-regions-wordwise]
- '("Regions Word-by-word ..." . ediff-regions-wordwise))
- (define-key menu-bar-ediff-menu [separator-ediff-windows] '("--"))
- (define-key menu-bar-ediff-menu [ediff-windows-linewise]
- '("Windows Line-by-line ..." . ediff-windows-linewise))
- (define-key menu-bar-ediff-menu [ediff-windows-wordwise]
- '("Windows Word-by-word ..." . ediff-windows-wordwise))
- ))
-
-;;;###autoload
-(if purify-flag
- ;; explicit string-match, as ediff-xemacs-p is not defined at build time
- (if (string-match "\\(Lucid\\|Xemacs\\)" emacs-version)
- ()
- (define-key
- menu-bar-ediff-merge-menu [ediff-merge-revisions-with-ancestor]
- '("Revisions with Ancestor ..." . ediff-merge-revisions-with-ancestor))
- (define-key menu-bar-ediff-merge-menu [ediff-merge-revisions]
- '("Revisions ..." . ediff-merge-revisions))
- (define-key menu-bar-ediff-merge-menu [separator-ediff-merge] '("--"))
- (define-key menu-bar-ediff-merge-menu [ediff-merge-buffers-with-ancestor]
- '("Buffers with Ancestor ..." . ediff-merge-buffers-with-ancestor))
- (define-key menu-bar-ediff-merge-menu [ediff-merge-buffers]
- '("Buffers ..." . ediff-merge-buffers))
- (define-key menu-bar-ediff-merge-menu [ediff-merge-files-with-ancestor]
- '("Files with Ancestor ..." . ediff-merge-files-with-ancestor))
- (define-key menu-bar-ediff-merge-menu [ediff-merge-files]
- '("Files ..." . ediff-merge-files))
- ))
-
-;;;###autoload
-(if purify-flag
- ;; explicit string-match, as ediff-xemacs-p is not defined at build time
- (if (string-match "\\(Lucid\\|Xemacs\\)" emacs-version)
- ()
- (define-key menu-bar-epatch-menu [ediff-patch-buffer]
- '("To a Buffer ..." . ediff-patch-buffer))
- (define-key menu-bar-epatch-menu [ediff-patch-file]
- '("To a File ..." . ediff-patch-file))
- ))
-
-
-;;;###autoload
-(if purify-flag
- ;; explicit string-match, as ediff-xemacs-p is not defined at build time
- (if (string-match "\\(Lucid\\|Xemacs\\)" emacs-version)
- (progn
- (defvar ediff-menu
- '("Compare"
- ["Two Files ..." ediff-files t]
- ["Two Buffers ..." ediff-buffers t]
- ["Three Files ..." ediff-files3 t]
- ["Three Buffers ..." ediff-buffers3 t]
- "---"
- ["File with Revision ..." ediff-revision t]
- "---"
- ["Windows Word-by-word ..." ediff-windows-wordwise t]
- ["Windows Line-by-line ..." ediff-windows-linewise t]
- "---"
- ["Regions Word-by-word ..." ediff-regions-wordwise t]
- ["Regions Line-by-line ..." ediff-regions-linewise t]))
- (defvar ediff-merge-menu
- '("Merge"
- ["Files ..." ediff-merge-files t]
- ["Files with Ancestor ..." ediff-merge-files-with-ancestor t]
- ["Buffers ..." ediff-merge-buffers t]
- ["Buffers with Ancestor ..."
- ediff-merge-buffers-with-ancestor t]
- "---"
- ["Revisions ..." ediff-merge-revisions t]
- ["Revisions with Ancestor ..."
- ediff-merge-revisions-with-ancestor t]))
- (defvar epatch-menu
- '("Apply Patch"
- ["To a file ..." ediff-patch-file t]
- ["To a buffer ..." ediff-patch-buffer t]))
- (add-submenu '("Tools") ediff-menu "VC")
- (add-submenu '("Tools") ediff-merge-menu "VC")
- (add-submenu '("Tools") epatch-menu "VC")
- ;; Display a solid horizontal line
- (add-menu-button '("Tools") ["---" nil nil] "VC")
- )))
+(defun generic-sc-ediff-internal (rev1 rev2 &optional startup-hooks)
+ "Run Ediff on versions of the current buffer.
+If REV2 is \"\" then compare current buffer with REV1.
+If the current buffer is named `F', the version is named `F.~REV~'.
+If `F.~REV~' already exists, it is used instead of being re-created."
+ (let (rev1buf rev2buf)
+ (save-excursion
+ (if (or (not rev1) (string= rev1 ""))
+ (setq rev1 (generic-sc-get-latest-rev)))
+ (sc-visit-previous-revision rev1)
+ (setq rev1buf (current-buffer)))
+ (save-excursion
+ (or (string= rev2 "") ; use current buffer
+ (sc-visit-previous-revision rev2))
+ (setq rev2buf (current-buffer)))
+ (ediff-buffers rev1buf rev2buf startup-hooks 'ediff-revision)))
(provide 'ediff)
projects / emacs.git / commitdiff