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c88ab9ce | 1 | ;;; tar-mode.el --- simple editing of tar files from GNU emacs |
aa73f29c | 2 | |
0d30b337 | 3 | ;; Copyright (C) 1990, 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
409cc4a3 | 4 | ;; 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
eea8d4ef | 5 | |
22a89ee8 | 6 | ;; Author: Jamie Zawinski <jwz@lucid.com> |
54138c9d | 7 | ;; Maintainer: FSF |
e5167999 | 8 | ;; Created: 04 Apr 1990 |
d7b4d18f | 9 | ;; Keywords: unix |
aa73f29c | 10 | |
b578f267 EN |
11 | ;; This file is part of GNU Emacs. |
12 | ||
eb3fa2cf | 13 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
b578f267 | 14 | ;; it under the terms of the GNU General Public License as published by |
eb3fa2cf GM |
15 | ;; the Free Software Foundation, either version 3 of the License, or |
16 | ;; (at your option) any later version. | |
b578f267 EN |
17 | |
18 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ;; GNU General Public License for more details. | |
22 | ||
23 | ;; You should have received a copy of the GNU General Public License | |
eb3fa2cf | 24 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
aa73f29c | 25 | |
22a89ee8 ER |
26 | ;;; Commentary: |
27 | ||
b578f267 EN |
28 | ;; This package attempts to make dealing with Unix 'tar' archives easier. |
29 | ;; When this code is loaded, visiting a file whose name ends in '.tar' will | |
30 | ;; cause the contents of that archive file to be displayed in a Dired-like | |
31 | ;; listing. It is then possible to use the customary Dired keybindings to | |
32 | ;; extract sub-files from that archive, either by reading them into their own | |
33 | ;; editor buffers, or by copying them directly to arbitrary files on disk. | |
34 | ;; It is also possible to delete sub-files from within the tar file and write | |
35 | ;; the modified archive back to disk, or to edit sub-files within the archive | |
36 | ;; and re-insert the modified files into the archive. See the documentation | |
37 | ;; string of tar-mode for more info. | |
38 | ||
39 | ;; This code now understands the extra fields that GNU tar adds to tar files. | |
40 | ||
41 | ;; This interacts correctly with "uncompress.el" in the Emacs library, | |
f1180544 | 42 | ;; which you get with |
b578f267 EN |
43 | ;; |
44 | ;; (autoload 'uncompress-while-visiting "uncompress") | |
45 | ;; (setq auto-mode-alist (cons '("\\.Z$" . uncompress-while-visiting) | |
46 | ;; auto-mode-alist)) | |
47 | ;; | |
48 | ;; Do not attempt to use tar-mode.el with crypt.el, you will lose. | |
49 | ||
f1180544 | 50 | ;; *************** TO DO *************** |
b578f267 EN |
51 | ;; |
52 | ;; o chmod should understand "a+x,og-w". | |
53 | ;; | |
f1180544 | 54 | ;; o It's not possible to add a NEW file to a tar archive; not that |
b578f267 EN |
55 | ;; important, but still... |
56 | ;; | |
57 | ;; o The code is less efficient that it could be - in a lot of places, I | |
58 | ;; pull a 512-character string out of the buffer and parse it, when I could | |
59 | ;; be parsing it in place, not garbaging a string. Should redo that. | |
60 | ;; | |
61 | ;; o I'd like a command that searches for a string/regexp in every subfile | |
62 | ;; of an archive, where <esc> would leave you in a subfile-edit buffer. | |
63 | ;; (Like the Meta-R command of the Zmacs mail reader.) | |
64 | ;; | |
f1180544 | 65 | ;; o Sometimes (but not always) reverting the tar-file buffer does not |
b578f267 EN |
66 | ;; re-grind the listing, and you are staring at the binary tar data. |
67 | ;; Typing 'g' again immediately after that will always revert and re-grind | |
68 | ;; it, though. I have no idea why this happens. | |
69 | ;; | |
70 | ;; o Tar-mode interacts poorly with crypt.el and zcat.el because the tar | |
71 | ;; write-file-hook actually writes the file. Instead it should remove the | |
72 | ;; header (and conspire to put it back afterwards) so that other write-file | |
73 | ;; hooks which frob the buffer have a chance to do their dirty work. There | |
74 | ;; might be a problem if the tar write-file-hook does not come *first* on | |
75 | ;; the list. | |
76 | ;; | |
f1180544 | 77 | ;; o Block files, sparse files, continuation files, and the various header |
b578f267 EN |
78 | ;; types aren't editable. Actually I don't know that they work at all. |
79 | ||
80 | ;; Rationale: | |
81 | ||
82 | ;; Why does tar-mode edit the file itself instead of using tar? | |
83 | ||
84 | ;; That means that you can edit tar files which you don't have room for | |
85 | ;; on your local disk. | |
86 | ||
87 | ;; I don't know about recent features in gnu tar, but old versions of tar | |
88 | ;; can't replace a file in the middle of a tar file with a new version. | |
89 | ;; Tar-mode can. I don't think tar can do things like chmod the subfiles. | |
90 | ;; An implementation which involved unpacking and repacking the file into | |
91 | ;; some scratch directory would be very wasteful, and wouldn't be able to | |
92 | ;; preserve the file owners. | |
ce210066 | 93 | |
22a89ee8 ER |
94 | ;;; Code: |
95 | ||
b4dd2e66 SE |
96 | (defgroup tar nil |
97 | "Simple editing of tar files." | |
98 | :prefix "tar-" | |
99 | :group 'data) | |
100 | ||
101 | (defcustom tar-anal-blocksize 20 | |
8560523d | 102 | "The blocksize of tar files written by Emacs, or nil, meaning don't care. |
aa73f29c | 103 | The blocksize of a tar file is not really the size of the blocks; rather, it is |
f1180544 | 104 | the number of blocks written with one system call. When tarring to a tape, |
aa73f29c RS |
105 | this is the size of the *tape* blocks, but when writing to a file, it doesn't |
106 | matter much. The only noticeable difference is that if a tar file does not | |
107 | have a blocksize of 20, tar will tell you that; all this really controls is | |
b4dd2e66 SE |
108 | how many null padding bytes go on the end of the tar file." |
109 | :type '(choice integer (const nil)) | |
110 | :group 'tar) | |
aa73f29c | 111 | |
b4dd2e66 | 112 | (defcustom tar-update-datestamp nil |
8560523d | 113 | "Non-nil means Tar mode should play fast and loose with sub-file datestamps. |
30712209 | 114 | If this is true, then editing and saving a tar file entry back into its |
aa73f29c RS |
115 | tar file will update its datestamp. If false, the datestamp is unchanged. |
116 | You may or may not want this - it is good in that you can tell when a file | |
117 | in a tar archive has been changed, but it is bad for the same reason that | |
f1180544 | 118 | editing a file in the tar archive at all is bad - the changed version of |
b4dd2e66 SE |
119 | the file never exists on disk." |
120 | :type 'boolean | |
121 | :group 'tar) | |
aa73f29c | 122 | |
b4dd2e66 | 123 | (defcustom tar-mode-show-date nil |
8560523d | 124 | "Non-nil means Tar mode should show the date/time of each subfile. |
b4dd2e66 SE |
125 | This information is useful, but it takes screen space away from file names." |
126 | :type 'boolean | |
127 | :group 'tar) | |
30712209 | 128 | |
0f8becaa ER |
129 | (defvar tar-parse-info nil) |
130 | (defvar tar-header-offset nil) | |
131 | (defvar tar-superior-buffer nil) | |
132 | (defvar tar-superior-descriptor nil) | |
133 | (defvar tar-subfile-mode nil) | |
d26e6665 | 134 | (defvar tar-file-name-coding-system nil) |
1c0b3743 RS |
135 | |
136 | (put 'tar-parse-info 'permanent-local t) | |
137 | (put 'tar-header-offset 'permanent-local t) | |
138 | (put 'tar-superior-buffer 'permanent-local t) | |
139 | (put 'tar-superior-descriptor 'permanent-local t) | |
d26e6665 | 140 | (put 'tar-file-name-coding-system 'permanent-local t) |
aa73f29c | 141 | \f |
aa73f29c RS |
142 | (defmacro tar-setf (form val) |
143 | "A mind-numbingly simple implementation of setf." | |
144 | (let ((mform (macroexpand form (and (boundp 'byte-compile-macro-environment) | |
145 | byte-compile-macro-environment)))) | |
146 | (cond ((symbolp mform) (list 'setq mform val)) | |
147 | ((not (consp mform)) (error "can't setf %s" form)) | |
148 | ((eq (car mform) 'aref) | |
149 | (list 'aset (nth 1 mform) (nth 2 mform) val)) | |
150 | ((eq (car mform) 'car) | |
151 | (list 'setcar (nth 1 mform) val)) | |
152 | ((eq (car mform) 'cdr) | |
153 | (list 'setcdr (nth 1 mform) val)) | |
154 | (t (error "don't know how to setf %s" form))))) | |
aa73f29c RS |
155 | \f |
156 | ;;; down to business. | |
157 | ||
158 | (defmacro make-tar-header (name mode uid git size date ck lt ln | |
159 | magic uname gname devmaj devmin) | |
160 | (list 'vector name mode uid git size date ck lt ln | |
161 | magic uname gname devmaj devmin)) | |
162 | ||
163 | (defmacro tar-header-name (x) (list 'aref x 0)) | |
164 | (defmacro tar-header-mode (x) (list 'aref x 1)) | |
165 | (defmacro tar-header-uid (x) (list 'aref x 2)) | |
166 | (defmacro tar-header-gid (x) (list 'aref x 3)) | |
167 | (defmacro tar-header-size (x) (list 'aref x 4)) | |
168 | (defmacro tar-header-date (x) (list 'aref x 5)) | |
169 | (defmacro tar-header-checksum (x) (list 'aref x 6)) | |
170 | (defmacro tar-header-link-type (x) (list 'aref x 7)) | |
171 | (defmacro tar-header-link-name (x) (list 'aref x 8)) | |
172 | (defmacro tar-header-magic (x) (list 'aref x 9)) | |
173 | (defmacro tar-header-uname (x) (list 'aref x 10)) | |
174 | (defmacro tar-header-gname (x) (list 'aref x 11)) | |
175 | (defmacro tar-header-dmaj (x) (list 'aref x 12)) | |
176 | (defmacro tar-header-dmin (x) (list 'aref x 13)) | |
177 | ||
178 | (defmacro make-tar-desc (data-start tokens) | |
179 | (list 'cons data-start tokens)) | |
180 | ||
181 | (defmacro tar-desc-data-start (x) (list 'car x)) | |
182 | (defmacro tar-desc-tokens (x) (list 'cdr x)) | |
183 | ||
184 | (defconst tar-name-offset 0) | |
185 | (defconst tar-mode-offset (+ tar-name-offset 100)) | |
186 | (defconst tar-uid-offset (+ tar-mode-offset 8)) | |
187 | (defconst tar-gid-offset (+ tar-uid-offset 8)) | |
188 | (defconst tar-size-offset (+ tar-gid-offset 8)) | |
189 | (defconst tar-time-offset (+ tar-size-offset 12)) | |
190 | (defconst tar-chk-offset (+ tar-time-offset 12)) | |
191 | (defconst tar-linkp-offset (+ tar-chk-offset 8)) | |
192 | (defconst tar-link-offset (+ tar-linkp-offset 1)) | |
193 | ;;; GNU-tar specific slots. | |
194 | (defconst tar-magic-offset (+ tar-link-offset 100)) | |
195 | (defconst tar-uname-offset (+ tar-magic-offset 8)) | |
196 | (defconst tar-gname-offset (+ tar-uname-offset 32)) | |
197 | (defconst tar-dmaj-offset (+ tar-gname-offset 32)) | |
198 | (defconst tar-dmin-offset (+ tar-dmaj-offset 8)) | |
034e32b0 JL |
199 | (defconst tar-prefix-offset (+ tar-dmin-offset 8)) |
200 | (defconst tar-end-offset (+ tar-prefix-offset 155)) | |
aa73f29c | 201 | |
1bc28099 | 202 | (defun tar-header-block-tokenize (string) |
e865c5ce | 203 | "Return a `tar-header' structure. |
f1180544 | 204 | This is a list of name, mode, uid, gid, size, |
e865c5ce | 205 | write-date, checksum, link-type, and link-name." |
8f924df7 | 206 | (setq string (string-as-unibyte string)) |
aa73f29c RS |
207 | (cond ((< (length string) 512) nil) |
208 | (;(some 'plusp string) ; <-- oops, massive cycle hog! | |
209 | (or (not (= 0 (aref string 0))) ; This will do. | |
210 | (not (= 0 (aref string 101)))) | |
034e32b0 | 211 | (let* ((name-end tar-mode-offset) |
aa73f29c RS |
212 | (link-end (1- tar-magic-offset)) |
213 | (uname-end (1- tar-gname-offset)) | |
214 | (gname-end (1- tar-dmaj-offset)) | |
215 | (link-p (aref string tar-linkp-offset)) | |
216 | (magic-str (substring string tar-magic-offset (1- tar-uname-offset))) | |
034e32b0 JL |
217 | (uname-valid-p (or (string= "ustar " magic-str) (string= "GNUtar " magic-str) |
218 | (string= "ustar\0000" magic-str))) | |
5342b2c7 | 219 | name linkname |
aa73f29c | 220 | (nulsexp "[^\000]*\000")) |
d710de41 RS |
221 | (when (string-match nulsexp string tar-name-offset) |
222 | (setq name-end (min name-end (1- (match-end 0))))) | |
223 | (when (string-match nulsexp string tar-link-offset) | |
224 | (setq link-end (min link-end (1- (match-end 0))))) | |
225 | (when (string-match nulsexp string tar-uname-offset) | |
226 | (setq uname-end (min uname-end (1- (match-end 0))))) | |
227 | (when (string-match nulsexp string tar-gname-offset) | |
228 | (setq gname-end (min gname-end (1- (match-end 0))))) | |
aa73f29c RS |
229 | (setq name (substring string tar-name-offset name-end) |
230 | link-p (if (or (= link-p 0) (= link-p ?0)) | |
231 | nil | |
232 | (- link-p ?0))) | |
1b33e237 | 233 | (setq linkname (substring string tar-link-offset link-end)) |
034e32b0 JL |
234 | (when (and uname-valid-p |
235 | (string-match nulsexp string tar-prefix-offset) | |
236 | (> (match-end 0) (1+ tar-prefix-offset))) | |
237 | (setq name (concat (substring string tar-prefix-offset | |
238 | (1- (match-end 0))) | |
239 | "/" name))) | |
1b33e237 KH |
240 | (if default-enable-multibyte-characters |
241 | (setq name | |
d26e6665 | 242 | (decode-coding-string name tar-file-name-coding-system) |
1b33e237 | 243 | linkname |
d26e6665 KH |
244 | (decode-coding-string linkname |
245 | tar-file-name-coding-system))) | |
c40d3365 | 246 | (if (and (null link-p) (string-match "/\\'" name)) (setq link-p 5)) ; directory |
aa73f29c RS |
247 | (make-tar-header |
248 | name | |
248d750a KH |
249 | (tar-parse-octal-integer string tar-mode-offset tar-uid-offset) |
250 | (tar-parse-octal-integer string tar-uid-offset tar-gid-offset) | |
251 | (tar-parse-octal-integer string tar-gid-offset tar-size-offset) | |
252 | (tar-parse-octal-integer string tar-size-offset tar-time-offset) | |
253 | (tar-parse-octal-long-integer string tar-time-offset tar-chk-offset) | |
254 | (tar-parse-octal-integer string tar-chk-offset tar-linkp-offset) | |
aa73f29c | 255 | link-p |
1b33e237 | 256 | linkname |
aa73f29c RS |
257 | uname-valid-p |
258 | (and uname-valid-p (substring string tar-uname-offset uname-end)) | |
259 | (and uname-valid-p (substring string tar-gname-offset gname-end)) | |
248d750a | 260 | (tar-parse-octal-integer string tar-dmaj-offset tar-dmin-offset) |
034e32b0 | 261 | (tar-parse-octal-integer string tar-dmin-offset tar-prefix-offset) |
aa73f29c RS |
262 | ))) |
263 | (t 'empty-tar-block))) | |
264 | ||
265 | ||
266 | (defun tar-parse-octal-integer (string &optional start end) | |
aa73f29c RS |
267 | (if (null start) (setq start 0)) |
268 | (if (null end) (setq end (length string))) | |
269 | (if (= (aref string start) 0) | |
270 | 0 | |
271 | (let ((n 0)) | |
272 | (while (< start end) | |
273 | (setq n (if (< (aref string start) ?0) n | |
30712209 | 274 | (+ (* n 8) (- (aref string start) ?0))) |
aa73f29c RS |
275 | start (1+ start))) |
276 | n))) | |
277 | ||
30712209 RS |
278 | (defun tar-parse-octal-long-integer (string &optional start end) |
279 | (if (null start) (setq start 0)) | |
280 | (if (null end) (setq end (length string))) | |
281 | (if (= (aref string start) 0) | |
806cba9c | 282 | (list 0 0) |
30712209 RS |
283 | (let ((lo 0) |
284 | (hi 0)) | |
285 | (while (< start end) | |
286 | (if (>= (aref string start) ?0) | |
287 | (setq lo (+ (* lo 8) (- (aref string start) ?0)) | |
288 | hi (+ (* hi 8) (ash lo -16)) | |
289 | lo (logand lo 65535))) | |
290 | (setq start (1+ start))) | |
291 | (list hi lo)))) | |
292 | ||
aa73f29c | 293 | (defun tar-parse-octal-integer-safe (string) |
8560523d SM |
294 | (if (zerop (length string)) (error "empty string")) |
295 | (mapc (lambda (c) | |
296 | (if (or (< c ?0) (> c ?7)) | |
297 | (error "`%c' is not an octal digit" c))) | |
298 | string) | |
aa73f29c RS |
299 | (tar-parse-octal-integer string)) |
300 | ||
301 | ||
1bc28099 | 302 | (defun tar-header-block-checksum (string) |
e865c5ce | 303 | "Compute and return a tar-acceptable checksum for this block." |
8f924df7 | 304 | (setq string (string-as-unibyte string)) |
aa73f29c RS |
305 | (let* ((chk-field-start tar-chk-offset) |
306 | (chk-field-end (+ chk-field-start 8)) | |
307 | (sum 0) | |
308 | (i 0)) | |
309 | ;; Add up all of the characters except the ones in the checksum field. | |
310 | ;; Add that field as if it were filled with spaces. | |
311 | (while (< i chk-field-start) | |
312 | (setq sum (+ sum (aref string i)) | |
313 | i (1+ i))) | |
314 | (setq i chk-field-end) | |
315 | (while (< i 512) | |
316 | (setq sum (+ sum (aref string i)) | |
317 | i (1+ i))) | |
318 | (+ sum (* 32 8)))) | |
319 | ||
1bc28099 | 320 | (defun tar-header-block-check-checksum (hblock desired-checksum file-name) |
aa73f29c | 321 | "Beep and print a warning if the checksum doesn't match." |
1bc28099 | 322 | (if (not (= desired-checksum (tar-header-block-checksum hblock))) |
aa73f29c RS |
323 | (progn (beep) (message "Invalid checksum for file %s!" file-name)))) |
324 | ||
30712209 RS |
325 | (defun tar-clip-time-string (time) |
326 | (let ((str (current-time-string time))) | |
139f2b7c | 327 | (concat " " (substring str 4 16) (substring str 19 24)))) |
aa73f29c | 328 | |
139f2b7c SM |
329 | (defun tar-grind-file-mode (mode) |
330 | "Construct a `-rw--r--r--' string indicating MODE. | |
6a06ace6 | 331 | MODE should be an integer which is a file mode value." |
139f2b7c SM |
332 | (string |
333 | (if (zerop (logand 256 mode)) ?- ?r) | |
334 | (if (zerop (logand 128 mode)) ?- ?w) | |
335 | (if (zerop (logand 1024 mode)) (if (zerop (logand 64 mode)) ?- ?x) ?s) | |
336 | (if (zerop (logand 32 mode)) ?- ?r) | |
337 | (if (zerop (logand 16 mode)) ?- ?w) | |
338 | (if (zerop (logand 2048 mode)) (if (zerop (logand 8 mode)) ?- ?x) ?s) | |
339 | (if (zerop (logand 4 mode)) ?- ?r) | |
340 | (if (zerop (logand 2 mode)) ?- ?w) | |
341 | (if (zerop (logand 1 mode)) ?- ?x))) | |
aa73f29c | 342 | |
1bc28099 | 343 | (defun tar-header-block-summarize (tar-hblock &optional mod-p) |
139f2b7c | 344 | "Return a line similar to the output of `tar -vtf'." |
aa73f29c RS |
345 | (let ((name (tar-header-name tar-hblock)) |
346 | (mode (tar-header-mode tar-hblock)) | |
347 | (uid (tar-header-uid tar-hblock)) | |
348 | (gid (tar-header-gid tar-hblock)) | |
349 | (uname (tar-header-uname tar-hblock)) | |
350 | (gname (tar-header-gname tar-hblock)) | |
351 | (size (tar-header-size tar-hblock)) | |
352 | (time (tar-header-date tar-hblock)) | |
8560523d | 353 | ;; (ck (tar-header-checksum tar-hblock)) |
139f2b7c SM |
354 | (type (tar-header-link-type tar-hblock)) |
355 | (link-name (tar-header-link-name tar-hblock))) | |
356 | (format "%c%c%s%8s/%-8s%7s%s %s%s" | |
357 | (if mod-p ?* ? ) | |
aa73f29c | 358 | (cond ((or (eq type nil) (eq type 0)) ?-) |
6ee30a2a RS |
359 | ((eq type 1) ?h) ; link |
360 | ((eq type 2) ?l) ; symlink | |
139f2b7c SM |
361 | ((eq type 3) ?c) ; char special |
362 | ((eq type 4) ?b) ; block special | |
363 | ((eq type 5) ?d) ; directory | |
364 | ((eq type 6) ?p) ; FIFO/pipe | |
365 | ((eq type 20) ?*) ; directory listing | |
f9580781 | 366 | ((eq type 28) ?L) ; next has longname |
139f2b7c SM |
367 | ((eq type 29) ?M) ; multivolume continuation |
368 | ((eq type 35) ?S) ; sparse | |
369 | ((eq type 38) ?V) ; volume header | |
133ecc54 | 370 | ((eq type 55) ?H) ; extended pax header |
e5d56b61 | 371 | (t ?\s) |
139f2b7c SM |
372 | ) |
373 | (tar-grind-file-mode mode) | |
374 | (if (= 0 (length uname)) uid uname) | |
375 | (if (= 0 (length gname)) gid gname) | |
376 | size | |
377 | (if tar-mode-show-date (tar-clip-time-string time) "") | |
a28eaf2c EZ |
378 | (propertize name |
379 | 'mouse-face 'highlight | |
380 | 'help-echo "mouse-2: extract this file into a buffer") | |
139f2b7c SM |
381 | (if (or (eq type 1) (eq type 2)) |
382 | (concat (if (= type 1) " ==> " " --> ") link-name) | |
383 | "")))) | |
aa73f29c | 384 | |
27129192 | 385 | (defun tar-untar-buffer () |
643415c4 | 386 | "Extract all archive members in the tar-file into the current directory." |
27129192 RS |
387 | (interactive) |
388 | (let ((multibyte enable-multibyte-characters)) | |
389 | (unwind-protect | |
390 | (save-restriction | |
391 | (widen) | |
392 | (set-buffer-multibyte nil) | |
393 | (dolist (descriptor tar-parse-info) | |
394 | (let* ((tokens (tar-desc-tokens descriptor)) | |
395 | (name (tar-header-name tokens)) | |
419625f7 MH |
396 | (dir (if (eq (tar-header-link-type tokens) 5) |
397 | name | |
398 | (file-name-directory name))) | |
643415c4 SM |
399 | (start (+ (tar-desc-data-start descriptor) |
400 | (- tar-header-offset (point-min)))) | |
27129192 | 401 | (end (+ start (tar-header-size tokens)))) |
76bf6666 RS |
402 | (unless (file-directory-p name) |
403 | (message "Extracting %s" name) | |
404 | (if (and dir (not (file-exists-p dir))) | |
405 | (make-directory dir t)) | |
643415c4 SM |
406 | (unless (file-directory-p name) |
407 | (write-region start end name)) | |
76bf6666 | 408 | (set-file-modes name (tar-header-mode tokens)))))) |
1236f7f6 KH |
409 | (if multibyte |
410 | (set-buffer-multibyte 'to))))) | |
27129192 | 411 | |
aa73f29c | 412 | (defun tar-summarize-buffer () |
e865c5ce RS |
413 | "Parse the contents of the tar file in the current buffer. |
414 | Place a dired-like listing on the front; | |
415 | then narrow to it, so that only that listing | |
aa73f29c | 416 | is visible (and the real data of the buffer is hidden)." |
c40d3365 MB |
417 | (let ((modified (buffer-modified-p))) |
418 | (set-buffer-multibyte nil) | |
419 | (let* ((result '()) | |
420 | (pos (point-min)) | |
421 | (progress-reporter | |
422 | (make-progress-reporter "Parsing tar file..." | |
423 | (point-min) (max 1 (- (buffer-size) 1024)))) | |
424 | tokens) | |
425 | (while (and (<= (+ pos 512) (point-max)) | |
426 | (not (eq 'empty-tar-block | |
427 | (setq tokens | |
428 | (tar-header-block-tokenize | |
429 | (buffer-substring pos (+ pos 512))))))) | |
430 | (setq pos (+ pos 512)) | |
431 | (progress-reporter-update progress-reporter pos) | |
133ecc54 | 432 | (if (memq (tar-header-link-type tokens) '(20 55)) |
c40d3365 MB |
433 | ;; Foo. There's an extra empty block after these. |
434 | (setq pos (+ pos 512))) | |
435 | (let ((size (tar-header-size tokens))) | |
436 | (if (< size 0) | |
437 | (error "%s has size %s - corrupted" | |
438 | (tar-header-name tokens) size)) | |
439 | ;; | |
440 | ;; This is just too slow. Don't really need it anyway.... | |
441 | ;;(tar-header-block-check-checksum | |
442 | ;; hblock (tar-header-block-checksum hblock) | |
443 | ;; (tar-header-name tokens)) | |
444 | ||
445 | (push (make-tar-desc pos tokens) result) | |
446 | ||
447 | (and (null (tar-header-link-type tokens)) | |
448 | (> size 0) | |
449 | (setq pos | |
450 | (+ pos 512 (ash (ash (1- size) -9) 9)) ; this works | |
451 | ;;(+ pos (+ size (- 512 (rem (1- size) 512)))) ; this doesn't | |
452 | )))) | |
453 | (make-local-variable 'tar-parse-info) | |
454 | (setq tar-parse-info (nreverse result)) | |
455 | ;; A tar file should end with a block or two of nulls, | |
456 | ;; but let's not get a fatal error if it doesn't. | |
457 | (if (eq tokens 'empty-tar-block) | |
458 | (progress-reporter-done progress-reporter) | |
459 | (message "Warning: premature EOF parsing tar file"))) | |
460 | ;; Obey the user's preference for the use of uni/multibytes. | |
1236f7f6 KH |
461 | (if default-enable-multibyte-characters |
462 | (set-buffer-multibyte 'to)) | |
aa73f29c | 463 | (goto-char (point-min)) |
c40d3365 MB |
464 | (let ((inhibit-read-only t) |
465 | ;; Collect summary lines and insert them all at once since tar files | |
466 | ;; can be pretty big. | |
467 | (total-summaries | |
468 | (mapconcat | |
469 | (lambda (tar-desc) | |
470 | (tar-header-block-summarize (tar-desc-tokens tar-desc))) | |
471 | tar-parse-info | |
472 | "\n"))) | |
473 | (insert total-summaries "\n")) | |
474 | (narrow-to-region (point-min) (point)) | |
475 | (set (make-local-variable 'tar-header-offset) (position-bytes (point))) | |
476 | (goto-char (point-min)) | |
477 | (restore-buffer-modified-p modified))) | |
e865c5ce | 478 | \f |
c40d3365 MB |
479 | (defvar tar-mode-map |
480 | (let ((map (make-keymap))) | |
481 | (suppress-keymap map) | |
482 | (define-key map " " 'tar-next-line) | |
483 | (define-key map "C" 'tar-copy) | |
484 | (define-key map "d" 'tar-flag-deleted) | |
485 | (define-key map "\^D" 'tar-flag-deleted) | |
486 | (define-key map "e" 'tar-extract) | |
487 | (define-key map "f" 'tar-extract) | |
488 | (define-key map "\C-m" 'tar-extract) | |
489 | (define-key map [mouse-2] 'tar-mouse-extract) | |
490 | (define-key map "g" 'revert-buffer) | |
491 | (define-key map "h" 'describe-mode) | |
492 | (define-key map "n" 'tar-next-line) | |
493 | (define-key map "\^N" 'tar-next-line) | |
494 | (define-key map [down] 'tar-next-line) | |
495 | (define-key map "o" 'tar-extract-other-window) | |
496 | (define-key map "p" 'tar-previous-line) | |
497 | (define-key map "q" 'quit-window) | |
498 | (define-key map "\^P" 'tar-previous-line) | |
499 | (define-key map [up] 'tar-previous-line) | |
500 | (define-key map "R" 'tar-rename-entry) | |
501 | (define-key map "u" 'tar-unflag) | |
502 | (define-key map "v" 'tar-view) | |
503 | (define-key map "x" 'tar-expunge) | |
504 | (define-key map "\177" 'tar-unflag-backwards) | |
505 | (define-key map "E" 'tar-extract-other-window) | |
506 | (define-key map "M" 'tar-chmod-entry) | |
507 | (define-key map "G" 'tar-chgrp-entry) | |
508 | (define-key map "O" 'tar-chown-entry) | |
7fe7479d SM |
509 | ;; Let mouse-1 follow the link. |
510 | (define-key map [follow-link] 'mouse-face) | |
53ad7bee | 511 | |
c40d3365 | 512 | ;; Make menu bar items. |
e865c5ce | 513 | |
c40d3365 MB |
514 | ;; Get rid of the Edit menu bar item to save space. |
515 | (define-key map [menu-bar edit] 'undefined) | |
e865c5ce | 516 | |
c40d3365 | 517 | (define-key map [menu-bar immediate] |
53ad7bee | 518 | (cons "Immediate" (make-sparse-keymap "Immediate"))) |
e865c5ce | 519 | |
c40d3365 | 520 | (define-key map [menu-bar immediate view] |
53ad7bee | 521 | '("View This File" . tar-view)) |
c40d3365 | 522 | (define-key map [menu-bar immediate display] |
53ad7bee | 523 | '("Display in Other Window" . tar-display-other-window)) |
c40d3365 | 524 | (define-key map [menu-bar immediate find-file-other-window] |
53ad7bee | 525 | '("Find in Other Window" . tar-extract-other-window)) |
c40d3365 | 526 | (define-key map [menu-bar immediate find-file] |
53ad7bee | 527 | '("Find This File" . tar-extract)) |
e865c5ce | 528 | |
c40d3365 | 529 | (define-key map [menu-bar mark] |
53ad7bee | 530 | (cons "Mark" (make-sparse-keymap "Mark"))) |
e865c5ce | 531 | |
c40d3365 | 532 | (define-key map [menu-bar mark unmark-all] |
53ad7bee | 533 | '("Unmark All" . tar-clear-modification-flags)) |
c40d3365 | 534 | (define-key map [menu-bar mark deletion] |
53ad7bee | 535 | '("Flag" . tar-flag-deleted)) |
c40d3365 | 536 | (define-key map [menu-bar mark unmark] |
53ad7bee | 537 | '("Unflag" . tar-unflag)) |
e865c5ce | 538 | |
c40d3365 | 539 | (define-key map [menu-bar operate] |
53ad7bee | 540 | (cons "Operate" (make-sparse-keymap "Operate"))) |
e865c5ce | 541 | |
c40d3365 | 542 | (define-key map [menu-bar operate chown] |
53ad7bee | 543 | '("Change Owner..." . tar-chown-entry)) |
c40d3365 | 544 | (define-key map [menu-bar operate chgrp] |
53ad7bee | 545 | '("Change Group..." . tar-chgrp-entry)) |
c40d3365 | 546 | (define-key map [menu-bar operate chmod] |
53ad7bee | 547 | '("Change Mode..." . tar-chmod-entry)) |
c40d3365 | 548 | (define-key map [menu-bar operate rename] |
53ad7bee | 549 | '("Rename to..." . tar-rename-entry)) |
c40d3365 | 550 | (define-key map [menu-bar operate copy] |
53ad7bee | 551 | '("Copy to..." . tar-copy)) |
c40d3365 | 552 | (define-key map [menu-bar operate expunge] |
53ad7bee SM |
553 | '("Expunge Marked Files" . tar-expunge)) |
554 | \f | |
c40d3365 MB |
555 | map) |
556 | "Local keymap for Tar mode listings.") | |
557 | ||
558 | \f | |
aa73f29c RS |
559 | ;; tar mode is suitable only for specially formatted data. |
560 | (put 'tar-mode 'mode-class 'special) | |
561 | (put 'tar-subfile-mode 'mode-class 'special) | |
562 | ||
bdd53bbc | 563 | ;;;###autoload |
a91c76d6 | 564 | (define-derived-mode tar-mode nil "Tar" |
aa73f29c | 565 | "Major mode for viewing a tar file as a dired-like listing of its contents. |
f1180544 | 566 | You can move around using the usual cursor motion commands. |
aa73f29c | 567 | Letters no longer insert themselves. |
439fa06f RS |
568 | Type `e' to pull a file out of the tar file and into its own buffer; |
569 | or click mouse-2 on the file's line in the Tar mode buffer. | |
e865c5ce | 570 | Type `c' to copy an entry from the tar file into another file on disk. |
aa73f29c | 571 | |
f1180544 | 572 | If you edit a sub-file of this archive (as with the `e' command) and |
8560523d | 573 | save it with \\[save-buffer], the contents of that buffer will be |
f1180544 | 574 | saved back into the tar-file buffer; in this way you can edit a file |
aa73f29c RS |
575 | inside of a tar archive without extracting it and re-archiving it. |
576 | ||
e865c5ce | 577 | See also: variables `tar-update-datestamp' and `tar-anal-blocksize'. |
aa73f29c RS |
578 | \\{tar-mode-map}" |
579 | ;; this is not interactive because you shouldn't be turning this | |
580 | ;; mode on and off. You can corrupt things that way. | |
1c0b3743 RS |
581 | ;; rms: with permanent locals, it should now be possible to make this work |
582 | ;; interactively in some reasonable fashion. | |
aa73f29c RS |
583 | (make-local-variable 'tar-header-offset) |
584 | (make-local-variable 'tar-parse-info) | |
a91c76d6 SM |
585 | (set (make-local-variable 'require-final-newline) nil) ; binary data, dude... |
586 | (set (make-local-variable 'revert-buffer-function) 'tar-mode-revert) | |
587 | (set (make-local-variable 'local-enable-local-variables) nil) | |
588 | (set (make-local-variable 'next-line-add-newlines) nil) | |
d26e6665 KH |
589 | (set (make-local-variable 'tar-file-name-coding-system) |
590 | (or file-name-coding-system | |
591 | default-file-name-coding-system | |
592 | locale-coding-system)) | |
b9ca3cdb | 593 | ;; Prevent loss of data when saving the file. |
a91c76d6 | 594 | (set (make-local-variable 'file-precious-flag) t) |
aa73f29c | 595 | (auto-save-mode 0) |
bea824fd | 596 | (set (make-local-variable 'write-contents-functions) '(tar-mode-write-file)) |
03b00795 | 597 | (buffer-disable-undo) |
aa73f29c RS |
598 | (widen) |
599 | (if (and (boundp 'tar-header-offset) tar-header-offset) | |
8f924df7 | 600 | (narrow-to-region (point-min) tar-header-offset) |
a91c76d6 SM |
601 | (tar-summarize-buffer) |
602 | (tar-next-line 0))) | |
aa73f29c RS |
603 | |
604 | ||
605 | (defun tar-subfile-mode (p) | |
606 | "Minor mode for editing an element of a tar-file. | |
76605277 RS |
607 | This mode arranges for \"saving\" this buffer to write the data |
608 | into the tar-file buffer that it came from. The changes will actually | |
609 | appear on disk when you save the tar-file's buffer." | |
aa73f29c | 610 | (interactive "P") |
0f8becaa | 611 | (or (and (boundp 'tar-superior-buffer) tar-superior-buffer) |
e865c5ce | 612 | (error "This buffer is not an element of a tar file")) |
643415c4 SM |
613 | ;; Don't do this, because it is redundant and wastes mode line space. |
614 | ;; (or (assq 'tar-subfile-mode minor-mode-alist) | |
615 | ;; (setq minor-mode-alist (append minor-mode-alist | |
616 | ;; (list '(tar-subfile-mode " TarFile"))))) | |
aa73f29c RS |
617 | (make-local-variable 'tar-subfile-mode) |
618 | (setq tar-subfile-mode | |
619 | (if (null p) | |
620 | (not tar-subfile-mode) | |
621 | (> (prefix-numeric-value p) 0))) | |
622 | (cond (tar-subfile-mode | |
76bf6666 | 623 | (add-hook 'write-file-functions 'tar-subfile-save-buffer nil t) |
aa73f29c | 624 | ;; turn off auto-save. |
75238436 | 625 | (auto-save-mode -1) |
aa73f29c RS |
626 | (setq buffer-auto-save-file-name nil) |
627 | (run-hooks 'tar-subfile-mode-hook)) | |
e865c5ce | 628 | (t |
76bf6666 | 629 | (remove-hook 'write-file-functions 'tar-subfile-save-buffer t)))) |
aa73f29c RS |
630 | |
631 | ||
e865c5ce | 632 | ;; Revert the buffer and recompute the dired-like listing. |
f6b0805a | 633 | (defun tar-mode-revert (&optional no-auto-save no-confirm) |
3742f39f RS |
634 | (let ((revert-buffer-function nil) |
635 | (old-offset tar-header-offset) | |
636 | success) | |
637 | (setq tar-header-offset nil) | |
638 | (unwind-protect | |
639 | (and (revert-buffer t no-confirm) | |
640 | (progn (widen) | |
641 | (setq success t) | |
642 | (tar-mode))) | |
643 | ;; If the revert was canceled, | |
644 | ;; put back the old value of tar-header-offset. | |
645 | (or success | |
646 | (setq tar-header-offset old-offset))))) | |
aa73f29c RS |
647 | |
648 | ||
210f943e PJ |
649 | (defun tar-next-line (arg) |
650 | "Move cursor vertically down ARG lines and to the start of the filename." | |
aa73f29c | 651 | (interactive "p") |
210f943e | 652 | (forward-line arg) |
30712209 | 653 | (if (eobp) nil (forward-char (if tar-mode-show-date 54 36)))) |
aa73f29c | 654 | |
210f943e PJ |
655 | (defun tar-previous-line (arg) |
656 | "Move cursor vertically up ARG lines and to the start of the filename." | |
aa73f29c | 657 | (interactive "p") |
210f943e | 658 | (tar-next-line (- arg))) |
aa73f29c RS |
659 | |
660 | (defun tar-current-descriptor (&optional noerror) | |
e865c5ce | 661 | "Return the tar-descriptor of the current line, or signals an error." |
aa73f29c RS |
662 | ;; I wish lines had plists, like in ZMACS... |
663 | (or (nth (count-lines (point-min) | |
664 | (save-excursion (beginning-of-line) (point))) | |
665 | tar-parse-info) | |
666 | (if noerror | |
667 | nil | |
439fa06f | 668 | (error "This line does not describe a tar-file entry")))) |
aa73f29c | 669 | |
439fa06f RS |
670 | (defun tar-get-descriptor () |
671 | (let* ((descriptor (tar-current-descriptor)) | |
672 | (tokens (tar-desc-tokens descriptor)) | |
673 | (size (tar-header-size tokens)) | |
674 | (link-p (tar-header-link-type tokens))) | |
675 | (if link-p | |
bf65c664 CY |
676 | (error "This is %s, not a real file" |
677 | (cond ((eq link-p 5) "a directory") | |
678 | ((eq link-p 20) "a tar directory header") | |
679 | ((eq link-p 28) "a next has longname") | |
680 | ((eq link-p 29) "a multivolume-continuation") | |
681 | ((eq link-p 35) "a sparse entry") | |
682 | ((eq link-p 38) "a volume header") | |
683 | ((eq link-p 55) "an extended pax header") | |
684 | (t "a link")))) | |
f09bbd93 | 685 | (if (zerop size) (message "This is a zero-length file")) |
439fa06f RS |
686 | descriptor)) |
687 | ||
688 | (defun tar-mouse-extract (event) | |
689 | "Extract a file whose tar directory line you click on." | |
690 | (interactive "e") | |
53ad7bee | 691 | (with-current-buffer (window-buffer (posn-window (event-end event))) |
439fa06f RS |
692 | (save-excursion |
693 | (goto-char (posn-point (event-end event))) | |
694 | ;; Just make sure this doesn't get an error. | |
695 | (tar-get-descriptor))) | |
696 | (select-window (posn-window (event-end event))) | |
697 | (goto-char (posn-point (event-end event))) | |
698 | (tar-extract)) | |
aa73f29c | 699 | |
07e7a05a EZ |
700 | (defun tar-file-name-handler (op &rest args) |
701 | "Helper function for `tar-extract'." | |
702 | (or (eq op 'file-exists-p) | |
703 | (let ((file-name-handler-alist nil)) | |
704 | (apply op args)))) | |
705 | ||
aa73f29c | 706 | (defun tar-extract (&optional other-window-p) |
628d6cef | 707 | "In Tar mode, extract this entry of the tar file into its own buffer." |
aa73f29c RS |
708 | (interactive) |
709 | (let* ((view-p (eq other-window-p 'view)) | |
439fa06f | 710 | (descriptor (tar-get-descriptor)) |
aa73f29c RS |
711 | (tokens (tar-desc-tokens descriptor)) |
712 | (name (tar-header-name tokens)) | |
713 | (size (tar-header-size tokens)) | |
643415c4 SM |
714 | (start (+ (tar-desc-data-start descriptor) |
715 | (- tar-header-offset (point-min)))) | |
aa73f29c | 716 | (end (+ start size))) |
aa73f29c | 717 | (let* ((tar-buffer (current-buffer)) |
38c6e0c7 | 718 | (tarname (buffer-name)) |
e8421604 GM |
719 | (bufname (concat (file-name-nondirectory name) |
720 | " (" | |
6da7ea56 | 721 | tarname |
e8421604 | 722 | ")")) |
aa73f29c | 723 | (read-only-p (or buffer-read-only view-p)) |
38c6e0c7 AS |
724 | (new-buffer-file-name (expand-file-name |
725 | ;; `:' is not allowed on Windows | |
e8421604 GM |
726 | (concat tarname "!" name))) |
727 | (buffer (get-file-buffer new-buffer-file-name)) | |
d26e6665 | 728 | (just-created nil) |
8e69f4d8 KH |
729 | (pos (point)) |
730 | undo-list) | |
e8421604 | 731 | (unless buffer |
38c6e0c7 | 732 | (setq buffer (generate-new-buffer bufname)) |
53ad7bee | 733 | (with-current-buffer buffer |
8e69f4d8 KH |
734 | (setq undo-list buffer-undo-list |
735 | buffer-undo-list t)) | |
38c6e0c7 | 736 | (setq bufname (buffer-name buffer)) |
aa73f29c RS |
737 | (setq just-created t) |
738 | (unwind-protect | |
d26e6665 KH |
739 | (let (coding) |
740 | (narrow-to-region start end) | |
741 | (goto-char start) | |
742 | (setq coding (or coding-system-for-read | |
743 | (and set-auto-coding-function | |
744 | (funcall set-auto-coding-function | |
8e71d059 | 745 | name (- end start))) |
262be72a MB |
746 | ;; The following binding causes |
747 | ;; find-buffer-file-type-coding-system | |
748 | ;; (defined on dos-w32.el) to act as if | |
749 | ;; the file being extracted existed, so | |
750 | ;; that the file's contents' encoding and | |
751 | ;; EOL format are auto-detected. | |
752 | (let ((file-name-handler-alist | |
753 | '(("" . tar-file-name-handler)))) | |
754 | (car (find-operation-coding-system | |
755 | 'insert-file-contents | |
756 | (cons name (current-buffer)) t))))) | |
d26e6665 KH |
757 | (if (or (not coding) |
758 | (eq (coding-system-type coding) 'undecided)) | |
759 | (setq coding (detect-coding-region start end t))) | |
8f924df7 KH |
760 | (if (and default-enable-multibyte-characters |
761 | (coding-system-get coding :for-unibyte)) | |
53ad7bee | 762 | (with-current-buffer buffer |
8f924df7 | 763 | (set-buffer-multibyte nil))) |
aa73f29c | 764 | (widen) |
8f924df7 | 765 | (decode-coding-region start end coding buffer) |
53ad7bee | 766 | (with-current-buffer buffer |
cb33a0ce | 767 | (goto-char (point-min)) |
38c6e0c7 | 768 | (setq buffer-file-name new-buffer-file-name) |
fef5a0be RS |
769 | (setq buffer-file-truename |
770 | (abbreviate-file-name buffer-file-name)) | |
262be72a MB |
771 | ;; Force buffer-file-coding-system to what |
772 | ;; decode-coding-region actually used. | |
773 | (set-buffer-file-coding-system last-coding-system-used t) | |
fef5a0be | 774 | ;; Set the default-directory to the dir of the |
f1180544 | 775 | ;; superior buffer. |
fef5a0be | 776 | (setq default-directory |
53ad7bee | 777 | (with-current-buffer tar-buffer |
fef5a0be | 778 | default-directory)) |
aa73f29c | 779 | (normal-mode) ; pick a mode. |
aa73f29c | 780 | (rename-buffer bufname) |
0f8becaa ER |
781 | (make-local-variable 'tar-superior-buffer) |
782 | (make-local-variable 'tar-superior-descriptor) | |
783 | (setq tar-superior-buffer tar-buffer) | |
784 | (setq tar-superior-descriptor descriptor) | |
f1180544 | 785 | (setq buffer-read-only read-only-p) |
76605277 | 786 | (set-buffer-modified-p nil) |
8e69f4d8 | 787 | (setq buffer-undo-list undo-list) |
76605277 | 788 | (tar-subfile-mode 1)) |
aa73f29c | 789 | (set-buffer tar-buffer)) |
643415c4 | 790 | (narrow-to-region (point-min) tar-header-offset) |
d26e6665 | 791 | (goto-char pos))) |
aa73f29c | 792 | (if view-p |
a51b80e7 MR |
793 | (view-buffer |
794 | buffer (and just-created 'kill-buffer-if-not-modified)) | |
e865c5ce RS |
795 | (if (eq other-window-p 'display) |
796 | (display-buffer buffer) | |
797 | (if other-window-p | |
798 | (switch-to-buffer-other-window buffer) | |
799 | (switch-to-buffer buffer))))))) | |
aa73f29c RS |
800 | |
801 | ||
802 | (defun tar-extract-other-window () | |
8560523d | 803 | "In Tar mode, find this entry of the tar file in another window." |
aa73f29c RS |
804 | (interactive) |
805 | (tar-extract t)) | |
806 | ||
e865c5ce | 807 | (defun tar-display-other-window () |
8560523d | 808 | "In Tar mode, display this entry of the tar file in another window." |
e865c5ce RS |
809 | (interactive) |
810 | (tar-extract 'display)) | |
811 | ||
aa73f29c | 812 | (defun tar-view () |
8560523d | 813 | "In Tar mode, view the tar file entry on this line." |
aa73f29c RS |
814 | (interactive) |
815 | (tar-extract 'view)) | |
816 | ||
817 | ||
818 | (defun tar-read-file-name (&optional prompt) | |
e865c5ce | 819 | "Read a file name with this line's entry as the default." |
aa73f29c RS |
820 | (or prompt (setq prompt "Copy to: ")) |
821 | (let* ((default-file (expand-file-name | |
822 | (tar-header-name (tar-desc-tokens | |
823 | (tar-current-descriptor))))) | |
824 | (target (expand-file-name | |
825 | (read-file-name prompt | |
826 | (file-name-directory default-file) | |
827 | default-file nil)))) | |
828 | (if (or (string= "" (file-name-nondirectory target)) | |
829 | (file-directory-p target)) | |
830 | (setq target (concat (if (string-match "/$" target) | |
831 | (substring target 0 (1- (match-end 0))) | |
832 | target) | |
833 | "/" | |
834 | (file-name-nondirectory default-file)))) | |
835 | target)) | |
836 | ||
837 | ||
838 | (defun tar-copy (&optional to-file) | |
8560523d | 839 | "In Tar mode, extract this entry of the tar file into a file on disk. |
aa73f29c RS |
840 | If TO-FILE is not supplied, it is prompted for, defaulting to the name of |
841 | the current tar-entry." | |
842 | (interactive (list (tar-read-file-name))) | |
439fa06f | 843 | (let* ((descriptor (tar-get-descriptor)) |
aa73f29c RS |
844 | (tokens (tar-desc-tokens descriptor)) |
845 | (name (tar-header-name tokens)) | |
846 | (size (tar-header-size tokens)) | |
643415c4 SM |
847 | (start (+ (tar-desc-data-start descriptor) |
848 | (- tar-header-offset (point-min)))) | |
d4ec0200 RS |
849 | (end (+ start size)) |
850 | (inhibit-file-name-handlers inhibit-file-name-handlers) | |
851 | (inhibit-file-name-operation inhibit-file-name-operation)) | |
6a608e8e KH |
852 | (save-restriction |
853 | (widen) | |
d4ec0200 RS |
854 | ;; Inhibit compressing a subfile again if *both* name and |
855 | ;; to-file are handled by jka-compr | |
856 | (if (and (eq (find-file-name-handler name 'write-region) 'jka-compr-handler) | |
857 | (eq (find-file-name-handler to-file 'write-region) 'jka-compr-handler)) | |
858 | (setq inhibit-file-name-handlers | |
859 | (cons 'jka-compr-handler | |
860 | (and (eq inhibit-file-name-operation 'write-region) | |
861 | inhibit-file-name-handlers)) | |
862 | inhibit-file-name-operation 'write-region)) | |
d26e6665 KH |
863 | (let ((coding-system-for-write 'no-conversion)) |
864 | (write-region start end to-file nil nil nil t))) | |
6a608e8e | 865 | (message "Copied tar entry %s to %s" name to-file))) |
aa73f29c RS |
866 | |
867 | (defun tar-flag-deleted (p &optional unflag) | |
8560523d | 868 | "In Tar mode, mark this sub-file to be deleted from the tar file. |
aa73f29c RS |
869 | With a prefix argument, mark that many files." |
870 | (interactive "p") | |
871 | (beginning-of-line) | |
8560523d | 872 | (dotimes (i (abs p)) |
aa73f29c RS |
873 | (if (tar-current-descriptor unflag) ; barf if we're not on an entry-line. |
874 | (progn | |
875 | (delete-char 1) | |
876 | (insert (if unflag " " "D")))) | |
877 | (forward-line (if (< p 0) -1 1))) | |
878 | (if (eobp) nil (forward-char 36))) | |
879 | ||
880 | (defun tar-unflag (p) | |
8560523d | 881 | "In Tar mode, un-mark this sub-file if it is marked to be deleted. |
aa73f29c RS |
882 | With a prefix argument, un-mark that many files forward." |
883 | (interactive "p") | |
884 | (tar-flag-deleted p t)) | |
885 | ||
886 | (defun tar-unflag-backwards (p) | |
8560523d | 887 | "In Tar mode, un-mark this sub-file if it is marked to be deleted. |
aa73f29c RS |
888 | With a prefix argument, un-mark that many files backward." |
889 | (interactive "p") | |
890 | (tar-flag-deleted (- p) t)) | |
891 | ||
892 | ||
893 | (defun tar-expunge-internal () | |
894 | "Expunge the tar-entry specified by the current line." | |
895 | (let* ((descriptor (tar-current-descriptor)) | |
896 | (tokens (tar-desc-tokens descriptor)) | |
8560523d | 897 | ;; (line (tar-desc-data-start descriptor)) |
aa73f29c RS |
898 | (name (tar-header-name tokens)) |
899 | (size (tar-header-size tokens)) | |
900 | (link-p (tar-header-link-type tokens)) | |
901 | (start (tar-desc-data-start descriptor)) | |
902 | (following-descs (cdr (memq descriptor tar-parse-info)))) | |
903 | (if link-p (setq size 0)) ; size lies for hard-links. | |
904 | ;; | |
905 | ;; delete the current line... | |
906 | (beginning-of-line) | |
907 | (let ((line-start (point))) | |
908 | (end-of-line) (forward-char) | |
8560523d SM |
909 | ;; decrement the header-pointer to be in sync... |
910 | (setq tar-header-offset (- tar-header-offset (- (point) line-start))) | |
911 | (delete-region line-start (point))) | |
aa73f29c RS |
912 | ;; |
913 | ;; delete the data pointer... | |
914 | (setq tar-parse-info (delq descriptor tar-parse-info)) | |
915 | ;; | |
916 | ;; delete the data from inside the file... | |
917 | (widen) | |
8560523d | 918 | (let* ((data-start (+ start (- tar-header-offset (point-min)) -512)) |
aa73f29c RS |
919 | (data-end (+ data-start 512 (ash (ash (+ size 511) -9) 9)))) |
920 | (delete-region data-start data-end) | |
921 | ;; | |
922 | ;; and finally, decrement the start-pointers of all following | |
923 | ;; entries in the archive. This is a pig when deleting a bunch | |
924 | ;; of files at once - we could optimize this to only do the | |
925 | ;; iteration over the files that remain, or only iterate up to | |
926 | ;; the next file to be deleted. | |
927 | (let ((data-length (- data-end data-start))) | |
048d06bd | 928 | (dolist (desc following-descs) |
aa73f29c RS |
929 | (tar-setf (tar-desc-data-start desc) |
930 | (- (tar-desc-data-start desc) data-length)))) | |
931 | )) | |
643415c4 | 932 | (narrow-to-region (point-min) tar-header-offset)) |
aa73f29c RS |
933 | |
934 | ||
935 | (defun tar-expunge (&optional noconfirm) | |
8560523d | 936 | "In Tar mode, delete all the archived files flagged for deletion. |
aa73f29c RS |
937 | This does not modify the disk image; you must save the tar file itself |
938 | for this to be permanent." | |
939 | (interactive) | |
940 | (if (or noconfirm | |
67501c01 | 941 | (y-or-n-p "Expunge files marked for deletion? ")) |
d26e6665 | 942 | (let ((n 0)) |
aa73f29c | 943 | (save-excursion |
cb33a0ce | 944 | (goto-char (point-min)) |
aa73f29c RS |
945 | (while (not (eobp)) |
946 | (if (looking-at "D") | |
947 | (progn (tar-expunge-internal) | |
948 | (setq n (1+ n))) | |
949 | (forward-line 1))) | |
950 | ;; after doing the deletions, add any padding that may be necessary. | |
951 | (tar-pad-to-blocksize) | |
643415c4 | 952 | (narrow-to-region (point-min) tar-header-offset)) |
aa73f29c | 953 | (if (zerop n) |
67501c01 RS |
954 | (message "Nothing to expunge.") |
955 | (message "%s files expunged. Be sure to save this buffer." n))))) | |
aa73f29c RS |
956 | |
957 | ||
958 | (defun tar-clear-modification-flags () | |
e865c5ce | 959 | "Remove the stars at the beginning of each line." |
a7e5e8cb | 960 | (interactive) |
aa73f29c | 961 | (save-excursion |
cb33a0ce | 962 | (goto-char (point-min)) |
d26e6665 | 963 | (while (< (point) tar-header-offset) |
e5d56b61 | 964 | (if (not (eq (following-char) ?\s)) |
aa73f29c RS |
965 | (progn (delete-char 1) (insert " "))) |
966 | (forward-line 1)))) | |
967 | ||
968 | ||
969 | (defun tar-chown-entry (new-uid) | |
8560523d | 970 | "Change the user-id associated with this entry in the tar file. |
aa73f29c RS |
971 | If this tar file was written by GNU tar, then you will be able to edit |
972 | the user id as a string; otherwise, you must edit it as a number. | |
973 | You can force editing as a number by calling this with a prefix arg. | |
974 | This does not modify the disk image; you must save the tar file itself | |
975 | for this to be permanent." | |
976 | (interactive (list | |
977 | (let ((tokens (tar-desc-tokens (tar-current-descriptor)))) | |
978 | (if (or current-prefix-arg | |
979 | (not (tar-header-magic tokens))) | |
980 | (let (n) | |
981 | (while (not (numberp (setq n (read-minibuffer | |
982 | "New UID number: " | |
983 | (format "%s" (tar-header-uid tokens))))))) | |
984 | n) | |
985 | (read-string "New UID string: " (tar-header-uname tokens)))))) | |
986 | (cond ((stringp new-uid) | |
987 | (tar-setf (tar-header-uname (tar-desc-tokens (tar-current-descriptor))) | |
988 | new-uid) | |
989 | (tar-alter-one-field tar-uname-offset (concat new-uid "\000"))) | |
990 | (t | |
991 | (tar-setf (tar-header-uid (tar-desc-tokens (tar-current-descriptor))) | |
992 | new-uid) | |
993 | (tar-alter-one-field tar-uid-offset | |
994 | (concat (substring (format "%6o" new-uid) 0 6) "\000 "))))) | |
995 | ||
996 | ||
997 | (defun tar-chgrp-entry (new-gid) | |
8560523d | 998 | "Change the group-id associated with this entry in the tar file. |
aa73f29c RS |
999 | If this tar file was written by GNU tar, then you will be able to edit |
1000 | the group id as a string; otherwise, you must edit it as a number. | |
1001 | You can force editing as a number by calling this with a prefix arg. | |
1002 | This does not modify the disk image; you must save the tar file itself | |
1003 | for this to be permanent." | |
1004 | (interactive (list | |
1005 | (let ((tokens (tar-desc-tokens (tar-current-descriptor)))) | |
1006 | (if (or current-prefix-arg | |
1007 | (not (tar-header-magic tokens))) | |
1008 | (let (n) | |
1009 | (while (not (numberp (setq n (read-minibuffer | |
1010 | "New GID number: " | |
1011 | (format "%s" (tar-header-gid tokens))))))) | |
1012 | n) | |
1013 | (read-string "New GID string: " (tar-header-gname tokens)))))) | |
1014 | (cond ((stringp new-gid) | |
1015 | (tar-setf (tar-header-gname (tar-desc-tokens (tar-current-descriptor))) | |
1016 | new-gid) | |
1017 | (tar-alter-one-field tar-gname-offset | |
1018 | (concat new-gid "\000"))) | |
1019 | (t | |
1020 | (tar-setf (tar-header-gid (tar-desc-tokens (tar-current-descriptor))) | |
1021 | new-gid) | |
1022 | (tar-alter-one-field tar-gid-offset | |
1023 | (concat (substring (format "%6o" new-gid) 0 6) "\000 "))))) | |
1024 | ||
1025 | (defun tar-rename-entry (new-name) | |
8560523d | 1026 | "Change the name associated with this entry in the tar file. |
aa73f29c RS |
1027 | This does not modify the disk image; you must save the tar file itself |
1028 | for this to be permanent." | |
1029 | (interactive | |
1030 | (list (read-string "New name: " | |
1031 | (tar-header-name (tar-desc-tokens (tar-current-descriptor)))))) | |
439fa06f | 1032 | (if (string= "" new-name) (error "zero length name")) |
d26e6665 KH |
1033 | (let ((encoded-new-name (encode-coding-string new-name |
1034 | tar-file-name-coding-system))) | |
1035 | (if (> (length encoded-new-name) 98) (error "name too long")) | |
1036 | (tar-setf (tar-header-name (tar-desc-tokens (tar-current-descriptor))) | |
1037 | new-name) | |
1038 | (tar-alter-one-field 0 | |
1039 | (substring (concat encoded-new-name (make-string 99 0)) 0 99)))) | |
aa73f29c RS |
1040 | |
1041 | ||
1042 | (defun tar-chmod-entry (new-mode) | |
c40d3365 | 1043 | "Change the protection bits associated with this entry in the tar file. |
aa73f29c RS |
1044 | This does not modify the disk image; you must save the tar file itself |
1045 | for this to be permanent." | |
1046 | (interactive (list (tar-parse-octal-integer-safe | |
1047 | (read-string "New protection (octal): ")))) | |
1048 | (tar-setf (tar-header-mode (tar-desc-tokens (tar-current-descriptor))) | |
1049 | new-mode) | |
1050 | (tar-alter-one-field tar-mode-offset | |
1051 | (concat (substring (format "%6o" new-mode) 0 6) "\000 "))) | |
1052 | ||
1053 | ||
1054 | (defun tar-alter-one-field (data-position new-data-string) | |
1055 | (let* ((descriptor (tar-current-descriptor)) | |
d26e6665 | 1056 | (tokens (tar-desc-tokens descriptor))) |
aa73f29c RS |
1057 | (unwind-protect |
1058 | (save-excursion | |
1059 | ;; | |
1060 | ;; update the header-line. | |
1061 | (beginning-of-line) | |
1062 | (let ((p (point))) | |
1063 | (forward-line 1) | |
1064 | (delete-region p (point)) | |
1bc28099 | 1065 | (insert (tar-header-block-summarize tokens) "\n") |
d26e6665 | 1066 | (setq tar-header-offset (point-max))) |
f1180544 | 1067 | |
aa73f29c | 1068 | (widen) |
c40d3365 MB |
1069 | (let* ((start (+ (tar-desc-data-start descriptor) |
1070 | (- tar-header-offset (point-min)) | |
1071 | -512))) | |
aa73f29c RS |
1072 | ;; |
1073 | ;; delete the old field and insert a new one. | |
1074 | (goto-char (+ start data-position)) | |
1075 | (delete-region (point) (+ (point) (length new-data-string))) ; <-- | |
d26e6665 KH |
1076 | |
1077 | ;; As new-data-string is unibyte, just inserting it will | |
1078 | ;; make eight-bit chars to the corresponding multibyte | |
1079 | ;; chars. This avoid that conversion, i.e., eight-bit | |
1080 | ;; chars are converted to multibyte form of eight-bit | |
1081 | ;; chars. | |
1082 | (insert (string-to-multibyte new-data-string)) | |
aa73f29c RS |
1083 | ;; |
1084 | ;; compute a new checksum and insert it. | |
1bc28099 | 1085 | (let ((chk (tar-header-block-checksum |
aa73f29c RS |
1086 | (buffer-substring start (+ start 512))))) |
1087 | (goto-char (+ start tar-chk-offset)) | |
1088 | (delete-region (point) (+ (point) 8)) | |
1089 | (insert (format "%6o" chk)) | |
1090 | (insert 0) | |
1091 | (insert ? ) | |
1092 | (tar-setf (tar-header-checksum tokens) chk) | |
1093 | ;; | |
1094 | ;; ok, make sure we didn't botch it. | |
d246db94 | 1095 | (tar-header-block-check-checksum |
aa73f29c RS |
1096 | (buffer-substring start (+ start 512)) |
1097 | chk (tar-header-name tokens)) | |
1098 | ))) | |
643415c4 | 1099 | (narrow-to-region (point-min) tar-header-offset) |
47414bc1 | 1100 | (tar-next-line 0)))) |
aa73f29c RS |
1101 | |
1102 | ||
3d7fc2fb ER |
1103 | (defun tar-octal-time (timeval) |
1104 | ;; Format a timestamp as 11 octal digits. Ghod, I hope this works... | |
1105 | (let ((hibits (car timeval)) (lobits (car (cdr timeval)))) | |
516f7fca EZ |
1106 | (format "%05o%01o%05o" |
1107 | (lsh hibits -2) | |
1108 | (logior (lsh (logand 3 hibits) 1) | |
1109 | (if (> (logand lobits 32768) 0) 1 0)) | |
1110 | (logand 32767 lobits) | |
1111 | ))) | |
3d7fc2fb | 1112 | |
aa73f29c | 1113 | (defun tar-subfile-save-buffer () |
e865c5ce RS |
1114 | "In tar subfile mode, save this buffer into its parent tar-file buffer. |
1115 | This doesn't write anything to disk; you must save the parent tar-file buffer | |
aa73f29c RS |
1116 | to make your changes permanent." |
1117 | (interactive) | |
0f8becaa | 1118 | (if (not (and (boundp 'tar-superior-buffer) tar-superior-buffer)) |
439fa06f | 1119 | (error "This buffer has no superior tar file buffer")) |
0f8becaa | 1120 | (if (not (and (boundp 'tar-superior-descriptor) tar-superior-descriptor)) |
439fa06f | 1121 | (error "This buffer doesn't have an index into its superior tar file!")) |
aa73f29c RS |
1122 | (save-excursion |
1123 | (let ((subfile (current-buffer)) | |
47414bc1 | 1124 | (coding buffer-file-coding-system) |
1b33e237 KH |
1125 | (descriptor tar-superior-descriptor) |
1126 | subfile-size) | |
0f8becaa | 1127 | (set-buffer tar-superior-buffer) |
aa73f29c RS |
1128 | (let* ((tokens (tar-desc-tokens descriptor)) |
1129 | (start (tar-desc-data-start descriptor)) | |
1130 | (name (tar-header-name tokens)) | |
1131 | (size (tar-header-size tokens)) | |
1132 | (size-pad (ash (ash (+ size 511) -9) 9)) | |
1133 | (head (memq descriptor tar-parse-info)) | |
d26e6665 | 1134 | (following-descs (cdr head))) |
aa73f29c RS |
1135 | (if (not head) |
1136 | (error "Can't find this tar file entry in its parent tar file!")) | |
1137 | (unwind-protect | |
1138 | (save-excursion | |
aa73f29c | 1139 | ;; delete the old data... |
643415c4 | 1140 | (let* ((data-start (+ start (- tar-header-offset (point-min)))) |
aa73f29c | 1141 | (data-end (+ data-start (ash (ash (+ size 511) -9) 9)))) |
d26e6665 KH |
1142 | (narrow-to-region data-start data-end) |
1143 | (delete-region (point-min) (point-max)) | |
aa73f29c RS |
1144 | ;; insert the new data... |
1145 | (goto-char data-start) | |
53ad7bee | 1146 | (with-current-buffer subfile |
d26e6665 KH |
1147 | (save-restriction |
1148 | (widen) | |
1149 | (encode-coding-region 1 (point-max) coding tar-superior-buffer))) | |
1150 | (setq subfile-size (- (point-max) (point-min))) | |
aa73f29c RS |
1151 | ;; |
1152 | ;; pad the new data out to a multiple of 512... | |
1153 | (let ((subfile-size-pad (ash (ash (+ subfile-size 511) -9) 9))) | |
d26e6665 | 1154 | (goto-char (point-max)) |
aa73f29c RS |
1155 | (insert (make-string (- subfile-size-pad subfile-size) 0)) |
1156 | ;; | |
1157 | ;; update the data pointer of this and all following files... | |
1158 | (tar-setf (tar-header-size tokens) subfile-size) | |
1159 | (let ((difference (- subfile-size-pad size-pad))) | |
048d06bd | 1160 | (dolist (desc following-descs) |
aa73f29c RS |
1161 | (tar-setf (tar-desc-data-start desc) |
1162 | (+ (tar-desc-data-start desc) difference)))) | |
1163 | ;; | |
1164 | ;; Update the size field in the header block. | |
d26e6665 | 1165 | (widen) |
aa73f29c RS |
1166 | (let ((header-start (- data-start 512))) |
1167 | (goto-char (+ header-start tar-size-offset)) | |
1168 | (delete-region (point) (+ (point) 12)) | |
1169 | (insert (format "%11o" subfile-size)) | |
1170 | (insert ? ) | |
1171 | ;; | |
1172 | ;; Maybe update the datestamp. | |
1173 | (if (not tar-update-datestamp) | |
1174 | nil | |
1175 | (goto-char (+ header-start tar-time-offset)) | |
1176 | (delete-region (point) (+ (point) 12)) | |
3d7fc2fb | 1177 | (insert (tar-octal-time (current-time))) |
aa73f29c RS |
1178 | (insert ? )) |
1179 | ;; | |
1180 | ;; compute a new checksum and insert it. | |
1bc28099 | 1181 | (let ((chk (tar-header-block-checksum |
aa73f29c RS |
1182 | (buffer-substring header-start data-start)))) |
1183 | (goto-char (+ header-start tar-chk-offset)) | |
1184 | (delete-region (point) (+ (point) 8)) | |
1185 | (insert (format "%6o" chk)) | |
1186 | (insert 0) | |
1187 | (insert ? ) | |
1188 | (tar-setf (tar-header-checksum tokens) chk))) | |
1189 | ;; | |
1190 | ;; alter the descriptor-line... | |
1191 | ;; | |
1192 | (let ((position (- (length tar-parse-info) (length head)))) | |
cb33a0ce | 1193 | (goto-char (point-min)) |
97546017 | 1194 | (forward-line position) |
aa73f29c RS |
1195 | (beginning-of-line) |
1196 | (let ((p (point)) | |
97590737 | 1197 | after |
aa73f29c RS |
1198 | (m (set-marker (make-marker) tar-header-offset))) |
1199 | (forward-line 1) | |
97590737 RS |
1200 | (setq after (point)) |
1201 | ;; Insert the new text after the old, before deleting, | |
1202 | ;; to preserve the window start. | |
1b33e237 | 1203 | (let ((line (tar-header-block-summarize tokens t))) |
d26e6665 | 1204 | (insert-before-markers line "\n")) |
97590737 | 1205 | (delete-region p after) |
aa73f29c RS |
1206 | (setq tar-header-offset (marker-position m))) |
1207 | ))) | |
1208 | ;; after doing the insertion, add any final padding that may be necessary. | |
1209 | (tar-pad-to-blocksize)) | |
8f924df7 | 1210 | (narrow-to-region (point-min) tar-header-offset))) |
aa73f29c | 1211 | (set-buffer-modified-p t) ; mark the tar file as modified |
47414bc1 | 1212 | (tar-next-line 0) |
aa73f29c RS |
1213 | (set-buffer subfile) |
1214 | (set-buffer-modified-p nil) ; mark the tar subfile as unmodified | |
67501c01 | 1215 | (message "Saved into tar-buffer `%s'. Be sure to save that buffer!" |
0f8becaa | 1216 | (buffer-name tar-superior-buffer)) |
47414bc1 RS |
1217 | ;; Prevent basic-save-buffer from changing our coding-system. |
1218 | (setq last-coding-system-used buffer-file-coding-system) | |
e865c5ce RS |
1219 | ;; Prevent ordinary saving from happening. |
1220 | t))) | |
aa73f29c RS |
1221 | |
1222 | ||
1b33e237 | 1223 | ;; When this function is called, it is sure that the buffer is unibyte. |
aa73f29c RS |
1224 | (defun tar-pad-to-blocksize () |
1225 | "If we are being anal about tar file blocksizes, fix up the current buffer. | |
1226 | Leaves the region wide." | |
1227 | (if (null tar-anal-blocksize) | |
1228 | nil | |
1229 | (widen) | |
1230 | (let* ((last-desc (nth (1- (length tar-parse-info)) tar-parse-info)) | |
1231 | (start (tar-desc-data-start last-desc)) | |
1232 | (tokens (tar-desc-tokens last-desc)) | |
1233 | (link-p (tar-header-link-type tokens)) | |
1234 | (size (if link-p 0 (tar-header-size tokens))) | |
1235 | (data-end (+ start size)) | |
1236 | (bbytes (ash tar-anal-blocksize 9)) | |
8560523d | 1237 | (pad-to (+ bbytes (* bbytes (/ (- data-end (point-min)) bbytes)))) |
628d6cef | 1238 | (inhibit-read-only t) ; ## |
aa73f29c RS |
1239 | ) |
1240 | ;; If the padding after the last data is too long, delete some; | |
1241 | ;; else insert some until we are padded out to the right number of blocks. | |
1242 | ;; | |
8560523d SM |
1243 | (let ((goal-end (+ (or tar-header-offset 0) pad-to))) |
1244 | (if (> (point-max) goal-end) | |
1245 | (delete-region goal-end (point-max)) | |
1246 | (goto-char (point-max)) | |
1247 | (insert (make-string (- goal-end (point-max)) ?\0))))))) | |
aa73f29c RS |
1248 | |
1249 | ||
439fa06f | 1250 | ;; Used in write-file-hook to write tar-files out correctly. |
67501c01 RS |
1251 | (defun tar-mode-write-file () |
1252 | (unwind-protect | |
1253 | (save-excursion | |
1254 | (widen) | |
1255 | ;; Doing this here confuses things - the region gets left too wide! | |
1256 | ;; I suppose this is run in a context where changing the buffer is bad. | |
1257 | ;; (tar-pad-to-blocksize) | |
4063eb1c DL |
1258 | ;; tar-header-offset turns out to be null for files fetched with W3, |
1259 | ;; at least. | |
1b33e237 | 1260 | (let ((coding-system-for-write 'no-conversion)) |
d26e6665 KH |
1261 | (write-region (or tar-header-offset |
1262 | (point-min)) | |
1b33e237 KH |
1263 | (point-max) |
1264 | buffer-file-name nil t)) | |
87aed91b RS |
1265 | (tar-clear-modification-flags) |
1266 | (set-buffer-modified-p nil)) | |
8f924df7 | 1267 | (narrow-to-region (point-min) tar-header-offset)) |
23bdfc9a | 1268 | ;; Return t because we've written the file. |
67501c01 | 1269 | t) |
aa73f29c | 1270 | \f |
aa73f29c RS |
1271 | (provide 'tar-mode) |
1272 | ||
8560523d | 1273 | ;; arch-tag: 8a585a4a-340e-42c2-89e7-d3b1013a4b78 |
c88ab9ce | 1274 | ;;; tar-mode.el ends here |