(diary-face, holiday-face): Add dark-background variants.
[bpt/emacs.git] / lisp / ediff-vers.el
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1;;; ediff-vers.el --- version control interface to Ediff
2
ddc90f39 3;;; Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
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4
5;; Author: Michael Kifer <kifer@cs.sunysb.edu>
6
7;; This file is part of GNU Emacs.
8
9;; GNU Emacs is free software; you can redistribute it and/or modify
10;; it under the terms of the GNU General Public License as published by
11;; the Free Software Foundation; either version 2, or (at your option)
12;; any later version.
13
14;; GNU Emacs is distributed in the hope that it will be useful,
15;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17;; GNU General Public License for more details.
18
19;; You should have received a copy of the GNU General Public License
20;; along with GNU Emacs; see the file COPYING. If not, write to the
21;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22;; Boston, MA 02111-1307, USA.
23
24
25;;; Code:
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26
27;; Compiler pacifier
28(defvar rcs-default-co-switches)
29(defvar sc-mode)
30(defvar cvs-shell)
31(defvar cvs-program)
32(defvar cvs-cookie-handle)
ddc90f39 33(defvar ediff-temp-file-prefix)
bbe6126c 34
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35(and noninteractive
36 (eval-when-compile
37 (load "pcl-cvs" 'noerror)
38 (load "rcs" 'noerror)
39 (load "generic-sc" 'noerror)
40 (load "vc" 'noerror)))
bbe6126c 41;; end pacifier
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42
43;; VC.el support
92c51e07 44(defun ediff-vc-internal (rev1 rev2 &optional startup-hooks)
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45;; Run Ediff on versions of the current buffer.
46;; If REV2 is "" then compare current buffer with REV1.
47;; If the current buffer is named `F', the version is named `F.~REV~'.
48;; If `F.~REV~' already exists, it is used instead of being re-created.
49 (let (file1 file2 rev1buf rev2buf)
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50 (save-window-excursion
51 (save-excursion
52 (vc-version-other-window rev1)
53 (setq rev1buf (current-buffer)
54 file1 (buffer-file-name)))
55 (save-excursion
56 (or (string= rev2 "") ; use current buffer
57 (vc-version-other-window rev2))
58 (setq rev2buf (current-buffer)
59 file2 (buffer-file-name)))
60 (setq startup-hooks
61 (cons `(lambda ()
62 (delete-file ,file1)
63 (or ,(string= rev2 "") (delete-file ,file2)))
64 startup-hooks)))
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65 (ediff-buffers
66 rev1buf rev2buf
67 startup-hooks
68 'ediff-revision)))
69
70;; RCS.el support
71(defun rcs-ediff-view-revision (&optional rev)
72;; View previous RCS revision of current file.
73;; With prefix argument, prompts for a revision name.
74 (interactive (list (if current-prefix-arg
75 (read-string "Revision: "))))
76 (let* ((filename (buffer-file-name (current-buffer)))
77 (switches (append '("-p")
78 (if rev (list (concat "-r" rev)) nil)))
79 (buff (concat (file-name-nondirectory filename) ".~" rev "~")))
80 (message "Working ...")
81 (setq filename (expand-file-name filename))
82 (with-output-to-temp-buffer buff
83 (let ((output-buffer (ediff-rcs-get-output-buffer filename buff)))
84 (delete-windows-on output-buffer)
85 (save-excursion
86 (set-buffer output-buffer)
87 (apply 'call-process "co" nil t nil
88 ;; -q: quiet (no diagnostics)
89 (append switches rcs-default-co-switches
90 (list "-q" filename)))))
91 (message "")
92 buff)))
93
94(defun ediff-rcs-get-output-buffer (file name)
95 ;; Get a buffer for RCS output for FILE, make it writable and clean it up.
96 ;; Optional NAME is name to use instead of `*RCS-output*'.
3af0304a 97 ;; This is a modified version from rcs.el v1.1. I use it here to make
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98 ;; Ediff immune to changes in rcs.el
99 (let* ((default-major-mode 'fundamental-mode) ; no frills!
100 (buf (get-buffer-create name)))
101 (save-excursion
102 (set-buffer buf)
103 (setq buffer-read-only nil
104 default-directory (file-name-directory (expand-file-name file)))
105 (erase-buffer))
106 buf))
107
92c51e07 108(defun ediff-rcs-internal (rev1 rev2 &optional startup-hooks)
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109;; Run Ediff on versions of the current buffer.
110;; If REV2 is "" then use current buffer.
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111 (let (rev2buf rev1buf)
112 (save-window-excursion
113 (setq rev2buf (if (string= rev2 "")
114 (current-buffer)
115 (rcs-ediff-view-revision rev2))
116 rev1buf (rcs-ediff-view-revision rev1)))
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117
118 ;; rcs.el doesn't create temp version files, so we don't have to delete
119 ;; anything in startup hooks to ediff-buffers
120 (ediff-buffers rev1buf rev2buf startup-hooks 'ediff-revision)
121 ))
122
123
124;; GENERIC-SC.el support
125
126(defun generic-sc-get-latest-rev ()
127 (cond ((eq sc-mode 'CCASE)
128 (eval "main/LATEST"))
129 (t (eval ""))))
130
92c51e07 131(defun ediff-generic-sc-internal (rev1 rev2 &optional startup-hooks)
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132;; Run Ediff on versions of the current buffer.
133;; If REV2 is "" then compare current buffer with REV1.
134;; If the current buffer is named `F', the version is named `F.~REV~'.
135;; If `F.~REV~' already exists, it is used instead of being re-created.
136 (let (rev1buf rev2buf)
137 (save-excursion
138 (if (or (not rev1) (string= rev1 ""))
139 (setq rev1 (generic-sc-get-latest-rev)))
140 (sc-visit-previous-revision rev1)
141 (setq rev1buf (current-buffer)))
142 (save-excursion
143 (or (string= rev2 "") ; use current buffer
144 (sc-visit-previous-revision rev2))
145 (setq rev2buf (current-buffer)))
146 (ediff-buffers rev1buf rev2buf startup-hooks 'ediff-revision)))
147
148
149;;; Merge with Version Control
150
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151(defun ediff-vc-merge-internal (rev1 rev2 ancestor-rev
152 &optional startup-hooks merge-buffer-file)
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153;; If ANCESTOR-REV non-nil, merge with ancestor
154 (let (buf1 buf2 ancestor-buf)
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155 (save-window-excursion
156 (save-excursion
157 (vc-version-other-window rev1)
158 (setq buf1 (current-buffer)))
159 (save-excursion
160 (or (string= rev2 "")
161 (vc-version-other-window rev2))
162 (setq buf2 (current-buffer)))
163 (if ancestor-rev
164 (save-excursion
165 (if (string= ancestor-rev "")
166 (setq ancestor-rev (vc-workfile-version buffer-file-name)))
167 (vc-version-other-window ancestor-rev)
168 (setq ancestor-buf (current-buffer))))
169 (setq startup-hooks
170 (cons
171 `(lambda ()
172 (delete-file ,(buffer-file-name buf1))
173 (or ,(string= rev2 "")
174 (delete-file ,(buffer-file-name buf2)))
175 (or ,(string= ancestor-rev "")
176 ,(not ancestor-rev)
177 (delete-file ,(buffer-file-name ancestor-buf)))
178 )
179 startup-hooks)))
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180 (if ancestor-rev
181 (ediff-merge-buffers-with-ancestor
182 buf1 buf2 ancestor-buf
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183 startup-hooks 'ediff-merge-revisions-with-ancestor merge-buffer-file)
184 (ediff-merge-buffers
185 buf1 buf2 startup-hooks 'ediff-merge-revisions merge-buffer-file))
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186 ))
187
92c51e07 188(defun ediff-rcs-merge-internal (rev1 rev2 ancestor-rev
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189 &optional
190 startup-hooks merge-buffer-file)
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191 ;; If ANCESTOR-REV non-nil, merge with ancestor
192 (let (buf1 buf2 ancestor-buf)
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193 (save-window-excursion
194 (setq buf1 (rcs-ediff-view-revision rev1)
195 buf2 (if (string= rev2 "")
196 (current-buffer)
197 (rcs-ediff-view-revision rev2))
198 ancestor-buf (if ancestor-rev
199 (if (string= ancestor-rev "")
200 (current-buffer)
201 (rcs-ediff-view-revision ancestor-rev)))))
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202 ;; rcs.el doesn't create temp version files, so we don't have to delete
203 ;; anything in startup hooks to ediff-buffers
204 (if ancestor-rev
205 (ediff-merge-buffers-with-ancestor
206 buf1 buf2 ancestor-buf
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207 startup-hooks 'ediff-merge-revisions-with-ancestor merge-buffer-file)
208 (ediff-merge-buffers
209 buf1 buf2 startup-hooks 'ediff-merge-revisions merge-buffer-file))))
8122a6da 210
92c51e07 211(defun ediff-generic-sc-merge-internal (rev1 rev2 ancestor-rev
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212 &optional
213 startup-hooks merge-buffer-file)
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214 ;; If ANCESTOR-REV non-nil, merge with ancestor
215 (let (buf1 buf2 ancestor-buf)
216 (save-excursion
217 (if (string= rev1 "")
218 (setq rev1 (generic-sc-get-latest-rev)))
219 (sc-visit-previous-revision rev1)
220 (setq buf1 (current-buffer)))
221 (save-excursion
222 (or (string= rev2 "")
223 (sc-visit-previous-revision rev2))
224 (setq buf2 (current-buffer)))
225 (if ancestor-rev
226 (save-excursion
227 (or (string= ancestor-rev "")
228 (sc-visit-previous-revision ancestor-rev))
229 (setq ancestor-buf (current-buffer))))
230 (if ancestor-rev
231 (ediff-merge-buffers-with-ancestor
232 buf1 buf2 ancestor-buf
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233 startup-hooks 'ediff-merge-revisions-with-ancestor merge-buffer-file)
234 (ediff-merge-buffers
235 buf1 buf2 startup-hooks 'ediff-merge-revisions merge-buffer-file))))
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236
237
238;; PCL-CVS.el support
239
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240
241(defun cvs-run-ediff-on-file-descriptor (tin)
242;; This is a replacement for cvs-emerge-mode
328b4b70 243;; Runs after cvs-update.
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244;; Ediff-merge appropriate revisions of the selected file.
245 (let* ((fileinfo (tin-cookie cvs-cookie-handle tin))
246 (type (cvs-fileinfo->type fileinfo))
247 (tmp-file
248 (cvs-retrieve-revision-to-tmpfile fileinfo))
c004db97 249 (default-directory
2eb4bdca 250 (file-name-as-directory (cvs-fileinfo->dir fileinfo)))
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251 ancestor-file)
252
253 (or (memq type '(MERGED CONFLICT MODIFIED))
254 (error
255 "Can only merge `Modified', `Merged' or `Conflict' files"))
256
257 (cond ((memq type '(MERGED CONFLICT))
258 (setq ancestor-file
259 (cvs-retrieve-revision-to-tmpfile
260 fileinfo
261 ;; revision
262 (cvs-fileinfo->base-revision fileinfo)))
263 (ediff-merge-buffers-with-ancestor
264 (find-file-noselect tmp-file)
265 (find-file-noselect (cvs-fileinfo->backup-file fileinfo))
266 (find-file-noselect ancestor-file)
267 nil ; startup-hooks
268 'ediff-merge-revisions-with-ancestor))
269 ((eq type 'MODIFIED)
c004db97 270 (ediff-buffers
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271 (find-file-noselect tmp-file)
272 (find-file-noselect (cvs-fileinfo->full-path fileinfo))
273 nil ; startup-hooks
c004db97 274 'ediff-revisions)))
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275 (if (stringp tmp-file) (delete-file tmp-file))
276 (if (stringp ancestor-file) (delete-file ancestor-file))))
277
278;;; Local Variables:
279;;; eval: (put 'ediff-defvar-local 'lisp-indent-hook 'defun)
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280;;; eval: (put 'ediff-with-current-buffer 'lisp-indent-hook 1)
281;;; eval: (put 'ediff-with-current-buffer 'edebug-form-spec '(form body))
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282;;; End:
283
284(provide 'ediff-vers)
285
286;;; ediff-vers.el ends here