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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: | |
bbe6126c MK |
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) |
8122a6da MK |
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) | |
50 | (save-excursion | |
51 | (vc-version-other-window rev1) | |
52 | (setq rev1buf (current-buffer) | |
53 | file1 (buffer-file-name))) | |
54 | (save-excursion | |
55 | (or (string= rev2 "") ; use current buffer | |
56 | (vc-version-other-window rev2)) | |
57 | (setq rev2buf (current-buffer) | |
58 | file2 (buffer-file-name))) | |
59 | (setq startup-hooks | |
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60 | (cons `(lambda () |
61 | (delete-file ,file1) | |
62 | (or ,(string= rev2 "") (delete-file ,file2))) | |
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63 | startup-hooks)) |
64 | (ediff-buffers | |
65 | rev1buf rev2buf | |
66 | startup-hooks | |
67 | 'ediff-revision))) | |
68 | ||
69 | ;; RCS.el support | |
70 | (defun rcs-ediff-view-revision (&optional rev) | |
71 | ;; View previous RCS revision of current file. | |
72 | ;; With prefix argument, prompts for a revision name. | |
73 | (interactive (list (if current-prefix-arg | |
74 | (read-string "Revision: ")))) | |
75 | (let* ((filename (buffer-file-name (current-buffer))) | |
76 | (switches (append '("-p") | |
77 | (if rev (list (concat "-r" rev)) nil))) | |
78 | (buff (concat (file-name-nondirectory filename) ".~" rev "~"))) | |
79 | (message "Working ...") | |
80 | (setq filename (expand-file-name filename)) | |
81 | (with-output-to-temp-buffer buff | |
82 | (let ((output-buffer (ediff-rcs-get-output-buffer filename buff))) | |
83 | (delete-windows-on output-buffer) | |
84 | (save-excursion | |
85 | (set-buffer output-buffer) | |
86 | (apply 'call-process "co" nil t nil | |
87 | ;; -q: quiet (no diagnostics) | |
88 | (append switches rcs-default-co-switches | |
89 | (list "-q" filename))))) | |
90 | (message "") | |
91 | buff))) | |
92 | ||
93 | (defun ediff-rcs-get-output-buffer (file name) | |
94 | ;; Get a buffer for RCS output for FILE, make it writable and clean it up. | |
95 | ;; Optional NAME is name to use instead of `*RCS-output*'. | |
3af0304a | 96 | ;; This is a modified version from rcs.el v1.1. I use it here to make |
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97 | ;; Ediff immune to changes in rcs.el |
98 | (let* ((default-major-mode 'fundamental-mode) ; no frills! | |
99 | (buf (get-buffer-create name))) | |
100 | (save-excursion | |
101 | (set-buffer buf) | |
102 | (setq buffer-read-only nil | |
103 | default-directory (file-name-directory (expand-file-name file))) | |
104 | (erase-buffer)) | |
105 | buf)) | |
106 | ||
92c51e07 | 107 | (defun ediff-rcs-internal (rev1 rev2 &optional startup-hooks) |
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108 | ;; Run Ediff on versions of the current buffer. |
109 | ;; If REV2 is "" then use current buffer. | |
110 | (let ((rev2buf (if (string= rev2 "") | |
111 | (current-buffer) | |
112 | (rcs-ediff-view-revision rev2))) | |
113 | (rev1buf (rcs-ediff-view-revision rev1))) | |
114 | ||
115 | ;; rcs.el doesn't create temp version files, so we don't have to delete | |
116 | ;; anything in startup hooks to ediff-buffers | |
117 | (ediff-buffers rev1buf rev2buf startup-hooks 'ediff-revision) | |
118 | )) | |
119 | ||
120 | ||
121 | ;; GENERIC-SC.el support | |
122 | ||
123 | (defun generic-sc-get-latest-rev () | |
124 | (cond ((eq sc-mode 'CCASE) | |
125 | (eval "main/LATEST")) | |
126 | (t (eval "")))) | |
127 | ||
92c51e07 | 128 | (defun ediff-generic-sc-internal (rev1 rev2 &optional startup-hooks) |
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129 | ;; Run Ediff on versions of the current buffer. |
130 | ;; If REV2 is "" then compare current buffer with REV1. | |
131 | ;; If the current buffer is named `F', the version is named `F.~REV~'. | |
132 | ;; If `F.~REV~' already exists, it is used instead of being re-created. | |
133 | (let (rev1buf rev2buf) | |
134 | (save-excursion | |
135 | (if (or (not rev1) (string= rev1 "")) | |
136 | (setq rev1 (generic-sc-get-latest-rev))) | |
137 | (sc-visit-previous-revision rev1) | |
138 | (setq rev1buf (current-buffer))) | |
139 | (save-excursion | |
140 | (or (string= rev2 "") ; use current buffer | |
141 | (sc-visit-previous-revision rev2)) | |
142 | (setq rev2buf (current-buffer))) | |
143 | (ediff-buffers rev1buf rev2buf startup-hooks 'ediff-revision))) | |
144 | ||
145 | ||
146 | ;;; Merge with Version Control | |
147 | ||
328b4b70 MK |
148 | (defun ediff-vc-merge-internal (rev1 rev2 ancestor-rev |
149 | &optional startup-hooks merge-buffer-file) | |
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150 | ;; If ANCESTOR-REV non-nil, merge with ancestor |
151 | (let (buf1 buf2 ancestor-buf) | |
152 | (save-excursion | |
153 | (vc-version-other-window rev1) | |
154 | (setq buf1 (current-buffer))) | |
155 | (save-excursion | |
156 | (or (string= rev2 "") | |
157 | (vc-version-other-window rev2)) | |
158 | (setq buf2 (current-buffer))) | |
159 | (if ancestor-rev | |
160 | (save-excursion | |
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161 | (if (string= ancestor-rev "") |
162 | (setq ancestor-rev (vc-workfile-version buffer-file-name))) | |
163 | (vc-version-other-window ancestor-rev) | |
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164 | (setq ancestor-buf (current-buffer)))) |
165 | (setq startup-hooks | |
166 | (cons | |
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167 | `(lambda () |
168 | (delete-file ,(buffer-file-name buf1)) | |
169 | (or ,(string= rev2 "") | |
170 | (delete-file ,(buffer-file-name buf2))) | |
171 | (or ,(string= ancestor-rev "") | |
172 | ,(not ancestor-rev) | |
173 | (delete-file ,(buffer-file-name ancestor-buf))) | |
174 | ) | |
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175 | startup-hooks)) |
176 | (if ancestor-rev | |
177 | (ediff-merge-buffers-with-ancestor | |
178 | buf1 buf2 ancestor-buf | |
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179 | startup-hooks 'ediff-merge-revisions-with-ancestor merge-buffer-file) |
180 | (ediff-merge-buffers | |
181 | buf1 buf2 startup-hooks 'ediff-merge-revisions merge-buffer-file)) | |
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182 | )) |
183 | ||
92c51e07 | 184 | (defun ediff-rcs-merge-internal (rev1 rev2 ancestor-rev |
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185 | &optional |
186 | startup-hooks merge-buffer-file) | |
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187 | ;; If ANCESTOR-REV non-nil, merge with ancestor |
188 | (let (buf1 buf2 ancestor-buf) | |
189 | (setq buf1 (rcs-ediff-view-revision rev1) | |
190 | buf2 (if (string= rev2 "") | |
191 | (current-buffer) | |
192 | (rcs-ediff-view-revision rev2)) | |
193 | ancestor-buf (if ancestor-rev | |
194 | (if (string= ancestor-rev "") | |
195 | (current-buffer) | |
196 | (rcs-ediff-view-revision ancestor-rev)))) | |
197 | ;; rcs.el doesn't create temp version files, so we don't have to delete | |
198 | ;; anything in startup hooks to ediff-buffers | |
199 | (if ancestor-rev | |
200 | (ediff-merge-buffers-with-ancestor | |
201 | buf1 buf2 ancestor-buf | |
328b4b70 MK |
202 | startup-hooks 'ediff-merge-revisions-with-ancestor merge-buffer-file) |
203 | (ediff-merge-buffers | |
204 | buf1 buf2 startup-hooks 'ediff-merge-revisions merge-buffer-file)))) | |
8122a6da | 205 | |
92c51e07 | 206 | (defun ediff-generic-sc-merge-internal (rev1 rev2 ancestor-rev |
328b4b70 MK |
207 | &optional |
208 | startup-hooks merge-buffer-file) | |
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209 | ;; If ANCESTOR-REV non-nil, merge with ancestor |
210 | (let (buf1 buf2 ancestor-buf) | |
211 | (save-excursion | |
212 | (if (string= rev1 "") | |
213 | (setq rev1 (generic-sc-get-latest-rev))) | |
214 | (sc-visit-previous-revision rev1) | |
215 | (setq buf1 (current-buffer))) | |
216 | (save-excursion | |
217 | (or (string= rev2 "") | |
218 | (sc-visit-previous-revision rev2)) | |
219 | (setq buf2 (current-buffer))) | |
220 | (if ancestor-rev | |
221 | (save-excursion | |
222 | (or (string= ancestor-rev "") | |
223 | (sc-visit-previous-revision ancestor-rev)) | |
224 | (setq ancestor-buf (current-buffer)))) | |
225 | (if ancestor-rev | |
226 | (ediff-merge-buffers-with-ancestor | |
227 | buf1 buf2 ancestor-buf | |
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228 | startup-hooks 'ediff-merge-revisions-with-ancestor merge-buffer-file) |
229 | (ediff-merge-buffers | |
230 | buf1 buf2 startup-hooks 'ediff-merge-revisions merge-buffer-file)))) | |
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231 | |
232 | ||
233 | ;; PCL-CVS.el support | |
234 | ||
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235 | |
236 | (defun cvs-run-ediff-on-file-descriptor (tin) | |
237 | ;; This is a replacement for cvs-emerge-mode | |
328b4b70 | 238 | ;; Runs after cvs-update. |
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239 | ;; Ediff-merge appropriate revisions of the selected file. |
240 | (let* ((fileinfo (tin-cookie cvs-cookie-handle tin)) | |
241 | (type (cvs-fileinfo->type fileinfo)) | |
242 | (tmp-file | |
243 | (cvs-retrieve-revision-to-tmpfile fileinfo)) | |
c004db97 | 244 | (default-directory |
2eb4bdca | 245 | (file-name-as-directory (cvs-fileinfo->dir fileinfo))) |
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246 | ancestor-file) |
247 | ||
248 | (or (memq type '(MERGED CONFLICT MODIFIED)) | |
249 | (error | |
250 | "Can only merge `Modified', `Merged' or `Conflict' files")) | |
251 | ||
252 | (cond ((memq type '(MERGED CONFLICT)) | |
253 | (setq ancestor-file | |
254 | (cvs-retrieve-revision-to-tmpfile | |
255 | fileinfo | |
256 | ;; revision | |
257 | (cvs-fileinfo->base-revision fileinfo))) | |
258 | (ediff-merge-buffers-with-ancestor | |
259 | (find-file-noselect tmp-file) | |
260 | (find-file-noselect (cvs-fileinfo->backup-file fileinfo)) | |
261 | (find-file-noselect ancestor-file) | |
262 | nil ; startup-hooks | |
263 | 'ediff-merge-revisions-with-ancestor)) | |
264 | ((eq type 'MODIFIED) | |
c004db97 | 265 | (ediff-buffers |
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266 | (find-file-noselect tmp-file) |
267 | (find-file-noselect (cvs-fileinfo->full-path fileinfo)) | |
268 | nil ; startup-hooks | |
c004db97 | 269 | 'ediff-revisions))) |
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270 | (if (stringp tmp-file) (delete-file tmp-file)) |
271 | (if (stringp ancestor-file) (delete-file ancestor-file)))) | |
272 | ||
273 | ;;; Local Variables: | |
274 | ;;; eval: (put 'ediff-defvar-local 'lisp-indent-hook 'defun) | |
e756eb9f MK |
275 | ;;; eval: (put 'ediff-with-current-buffer 'lisp-indent-hook 1) |
276 | ;;; eval: (put 'ediff-with-current-buffer 'edebug-form-spec '(form body)) | |
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277 | ;;; End: |
278 | ||
279 | (provide 'ediff-vers) | |
280 | ||
281 | ;;; ediff-vers.el ends here |