mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-04 08:47:11 +00:00
240 lines
7.9 KiB
EmacsLisp
240 lines
7.9 KiB
EmacsLisp
;;; ediff-vers.el --- version control interface to Ediff
|
|
|
|
;; Copyright (C) 1995, 1996, 1997, 2001, 2002, 2003, 2004,
|
|
;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
|
|
|
|
;; Author: Michael Kifer <kifer@cs.stonybrook.edu>
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs is free software: you can redistribute it and/or modify
|
|
;; it under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation, either version 3 of the License, or
|
|
;; (at your option) any later version.
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;; GNU General Public License for more details.
|
|
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
;;; Commentary:
|
|
|
|
;;; Code:
|
|
|
|
;; Compiler pacifier
|
|
(defvar rcs-default-co-switches)
|
|
|
|
(and noninteractive
|
|
(eval-when-compile
|
|
(condition-case nil
|
|
;; for compatibility with current stable version of xemacs
|
|
(progn
|
|
;;(require 'pcvs nil 'noerror)
|
|
;;(require 'rcs nil 'noerror)
|
|
(require 'pcvs)
|
|
(require 'rcs))
|
|
(error nil))
|
|
(require 'vc)
|
|
(require 'ediff-init)
|
|
))
|
|
;; end pacifier
|
|
|
|
(defcustom ediff-keep-tmp-versions nil
|
|
"If t, do not delete temporary previous versions for the files on which
|
|
comparison or merge operations are being performed."
|
|
:type 'boolean
|
|
:group 'ediff-vers
|
|
)
|
|
|
|
(defalias 'ediff-vc-revision-other-window
|
|
(if (fboundp 'vc-revision-other-window)
|
|
'vc-revision-other-window
|
|
'vc-version-other-window))
|
|
|
|
(defalias 'ediff-vc-working-revision
|
|
(if (fboundp 'vc-working-revision)
|
|
'vc-working-revision
|
|
'vc-workfile-version))
|
|
|
|
;; VC.el support
|
|
|
|
(eval-when-compile
|
|
(require 'vc-hooks)) ;; for vc-call macro
|
|
|
|
|
|
(defun ediff-vc-latest-version (file)
|
|
"Return the version level of the latest version of FILE in repository."
|
|
(if (fboundp 'vc-latest-version)
|
|
(vc-latest-version file)
|
|
(or (vc-file-getprop file 'vc-latest-revision)
|
|
(cond ((vc-backend file)
|
|
(vc-call state file)
|
|
(vc-file-getprop file 'vc-latest-revision))
|
|
(t (error "File %s is not under version control" file))))
|
|
))
|
|
|
|
|
|
(defun ediff-vc-internal (rev1 rev2 &optional startup-hooks)
|
|
;; Run Ediff on versions of the current buffer.
|
|
;; If REV1 is "", use the latest version of the current buffer's file.
|
|
;; 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 (file1 file2 rev1buf rev2buf)
|
|
(if (string= rev1 "")
|
|
(setq rev1 (ediff-vc-latest-version (buffer-file-name))))
|
|
(save-window-excursion
|
|
(save-excursion
|
|
(ediff-vc-revision-other-window rev1)
|
|
(setq rev1buf (current-buffer)
|
|
file1 (buffer-file-name)))
|
|
(save-excursion
|
|
(or (string= rev2 "") ; use current buffer
|
|
(ediff-vc-revision-other-window rev2))
|
|
(setq rev2buf (current-buffer)
|
|
file2 (buffer-file-name)))
|
|
(setq startup-hooks
|
|
(cons `(lambda ()
|
|
(ediff-delete-version-file ,file1)
|
|
(or ,(string= rev2 "") (ediff-delete-version-file ,file2)))
|
|
startup-hooks)))
|
|
(ediff-buffers
|
|
rev1buf rev2buf
|
|
startup-hooks
|
|
'ediff-revision)))
|
|
|
|
;; RCS.el support
|
|
(defun rcs-ediff-view-revision (&optional rev)
|
|
;; View previous RCS revision of current file.
|
|
;; With prefix argument, prompts for a revision name.
|
|
(interactive (list (if current-prefix-arg
|
|
(read-string "Revision: "))))
|
|
(let* ((filename (buffer-file-name (current-buffer)))
|
|
(switches (append '("-p")
|
|
(if rev (list (concat "-r" rev)) nil)))
|
|
(buff (concat (file-name-nondirectory filename) ".~" rev "~")))
|
|
(message "Working ...")
|
|
(setq filename (expand-file-name filename))
|
|
(with-output-to-temp-buffer buff
|
|
(ediff-with-current-buffer standard-output
|
|
(fundamental-mode))
|
|
(let ((output-buffer (ediff-rcs-get-output-buffer filename buff)))
|
|
(delete-windows-on output-buffer)
|
|
(with-current-buffer output-buffer
|
|
(apply 'call-process "co" nil t nil
|
|
;; -q: quiet (no diagnostics)
|
|
(append switches rcs-default-co-switches
|
|
(list "-q" filename)))))
|
|
(message "")
|
|
buff)))
|
|
|
|
(defun ediff-rcs-get-output-buffer (file name)
|
|
;; Get a buffer for RCS output for FILE, make it writable and clean it up.
|
|
;; Optional NAME is name to use instead of `*RCS-output*'.
|
|
;; This is a modified version from rcs.el v1.1. I use it here to make
|
|
;; Ediff immune to changes in rcs.el
|
|
(let ((buf (get-buffer-create name)))
|
|
(with-current-buffer buf
|
|
(setq buffer-read-only nil
|
|
default-directory (file-name-directory (expand-file-name file)))
|
|
(erase-buffer))
|
|
buf))
|
|
|
|
(defun ediff-rcs-internal (rev1 rev2 &optional startup-hooks)
|
|
;; Run Ediff on versions of the current buffer.
|
|
;; If REV2 is "" then use current buffer.
|
|
(let (rev2buf rev1buf)
|
|
(save-window-excursion
|
|
(setq 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 startup-hooks 'ediff-revision)
|
|
))
|
|
|
|
;;; Merge with Version Control
|
|
|
|
(defun ediff-vc-merge-internal (rev1 rev2 ancestor-rev
|
|
&optional startup-hooks merge-buffer-file)
|
|
;; If ANCESTOR-REV non-nil, merge with ancestor
|
|
(let (buf1 buf2 ancestor-buf)
|
|
(save-window-excursion
|
|
(save-excursion
|
|
(ediff-vc-revision-other-window rev1)
|
|
(setq buf1 (current-buffer)))
|
|
(save-excursion
|
|
(or (string= rev2 "")
|
|
(ediff-vc-revision-other-window rev2))
|
|
(setq buf2 (current-buffer)))
|
|
(if ancestor-rev
|
|
(save-excursion
|
|
(if (string= ancestor-rev "")
|
|
(setq ancestor-rev (ediff-vc-working-revision buffer-file-name)))
|
|
(ediff-vc-revision-other-window ancestor-rev)
|
|
(setq ancestor-buf (current-buffer))))
|
|
(setq startup-hooks
|
|
(cons
|
|
`(lambda ()
|
|
(ediff-delete-version-file ,(buffer-file-name buf1))
|
|
(or ,(string= rev2 "")
|
|
(ediff-delete-version-file ,(buffer-file-name buf2)))
|
|
(or ,(string= ancestor-rev "")
|
|
,(not ancestor-rev)
|
|
(ediff-delete-version-file ,(buffer-file-name ancestor-buf)))
|
|
)
|
|
startup-hooks)))
|
|
(if ancestor-rev
|
|
(ediff-merge-buffers-with-ancestor
|
|
buf1 buf2 ancestor-buf
|
|
startup-hooks 'ediff-merge-revisions-with-ancestor merge-buffer-file)
|
|
(ediff-merge-buffers
|
|
buf1 buf2 startup-hooks 'ediff-merge-revisions merge-buffer-file))
|
|
))
|
|
|
|
(defun ediff-rcs-merge-internal (rev1 rev2 ancestor-rev
|
|
&optional
|
|
startup-hooks merge-buffer-file)
|
|
;; If ANCESTOR-REV non-nil, merge with ancestor
|
|
(let (buf1 buf2 ancestor-buf)
|
|
(save-window-excursion
|
|
(setq buf1 (rcs-ediff-view-revision rev1)
|
|
buf2 (if (string= rev2 "")
|
|
(current-buffer)
|
|
(rcs-ediff-view-revision rev2))
|
|
ancestor-buf (if ancestor-rev
|
|
(if (string= ancestor-rev "")
|
|
(current-buffer)
|
|
(rcs-ediff-view-revision ancestor-rev)))))
|
|
;; rcs.el doesn't create temp version files, so we don't have to delete
|
|
;; anything in startup hooks to ediff-buffers
|
|
(if ancestor-rev
|
|
(ediff-merge-buffers-with-ancestor
|
|
buf1 buf2 ancestor-buf
|
|
startup-hooks 'ediff-merge-revisions-with-ancestor merge-buffer-file)
|
|
(ediff-merge-buffers
|
|
buf1 buf2 startup-hooks 'ediff-merge-revisions merge-buffer-file))))
|
|
|
|
|
|
;; delete version file on exit unless ediff-keep-tmp-versions is true
|
|
(defun ediff-delete-version-file (file)
|
|
(or ediff-keep-tmp-versions (delete-file file)))
|
|
|
|
|
|
(provide 'ediff-vers)
|
|
|
|
|
|
;; Local Variables:
|
|
;; eval: (put 'ediff-defvar-local 'lisp-indent-hook 'defun)
|
|
;; eval: (put 'ediff-with-current-buffer 'lisp-indent-hook 1)
|
|
;; eval: (put 'ediff-with-current-buffer 'edebug-form-spec '(form body))
|
|
;; End:
|
|
|
|
;; arch-tag: bbb34f0c-2a90-426a-a77a-c75f479ebbbf
|
|
;;; ediff-vers.el ends here
|