HCoop / bpt / emacs.git / blame
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| 665211a3 KH |
1 | ;;; arc-mode.el --- simple editing of archives |
| 2 | ||
| c38eb0a8 | 3 | ;; Copyright (C) 1995, 1997 Free Software Foundation, Inc. |
| 665211a3 | 4 | |
| 0acdb863 | 5 | ;; Author: Morten Welinder <terra@diku.dk> |
| 665211a3 KH |
6 | ;; Keywords: archives msdog editing major-mode |
| 7 | ;; Favourite-brand-of-beer: None, I hate beer. | |
| 8 | ||
| b578f267 EN |
9 | ;; This file is part of GNU Emacs. |
| 10 | ||
| 11 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
| 12 | ;; it under the terms of the GNU General Public License as published by | |
| 13 | ;; the Free Software Foundation; either version 2, or (at your option) | |
| 14 | ;; any later version. | |
| 15 | ||
| 16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 | ;; GNU General Public License for more details. | |
| 20 | ||
| 21 | ;; You should have received a copy of the GNU General Public License | |
| 22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
| 23 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 24 | ;; Boston, MA 02111-1307, USA. | |
| 665211a3 KH |
25 | |
| 26 | ;;; Commentary: | |
| b578f267 | 27 | |
| 665211a3 KH |
28 | ;; NAMING: "arc" is short for "archive" and does not refer specifically |
| 29 | ;; to files whose name end in ".arc" | |
| 30 | ;; | |
| 31 | ;; This code does not decode any files internally, although it does | |
| 32 | ;; understand the directory level of the archives. For this reason, | |
| 33 | ;; you should expect this code to need more fiddling than tar-mode.el | |
| 34 | ;; (although it at present has fewer bugs :-) In particular, I have | |
| 35 | ;; not tested this under Ms-Dog myself. | |
| 36 | ;; ------------------------------------- | |
| 37 | ;; INTERACTION: arc-mode.el should play together with | |
| 38 | ;; | |
| 39 | ;; * ange-ftp.el: Remote archives (i.e., ones that ange-ftp has brought | |
| 40 | ;; to you) are handled by doing all updates on a local | |
| 41 | ;; copy. When you make changes to a remote file the | |
| 42 | ;; changes will first take effect when the archive buffer | |
| 43 | ;; is saved. You will be warned about this. | |
| 44 | ;; | |
| 45 | ;; * dos-fns.el: (Part of Emacs 19). You get automatic ^M^J <--> ^J | |
| 46 | ;; conversion. | |
| 47 | ;; | |
| 48 | ;; arc-mode.el does not work well with crypt++.el; for the archives as | |
| 49 | ;; such this could be fixed (but wouldn't be useful) by declaring such | |
| 50 | ;; archives to be "remote". For the members this is a general Emacs | |
| 51 | ;; problem that 19.29's file formats may fix. | |
| 52 | ;; ------------------------------------- | |
| 53 | ;; ARCHIVE TYPES: Currently only the archives below are handled, but the | |
| 54 | ;; structure for handling just about anything is in place. | |
| 55 | ;; | |
| 56 | ;; Arc Lzh Zip Zoo | |
| 57 | ;; -------------------------------- | |
| 58 | ;; View listing Intern Intern Intern Intern | |
| 59 | ;; Extract member Y Y Y Y | |
| 60 | ;; Save changed member Y Y Y Y | |
| 61 | ;; Add new member N N N N | |
| 62 | ;; Delete member Y Y Y Y | |
| 63 | ;; Rename member Y Y N N | |
| 64 | ;; Chmod - Y Y - | |
| 65 | ;; Chown - Y - - | |
| 66 | ;; Chgrp - Y - - | |
| 67 | ;; | |
| 68 | ;; Special thanks to Bill Brodie <wbrodie@panix.com> for very useful tips | |
| 69 | ;; on the first released version of this package. | |
| 70 | ;; | |
| 71 | ;; This code is partly based on tar-mode.el from Emacs. | |
| 72 | ;; ------------------------------------- | |
| 73 | ;; ARCHIVE STRUCTURES: | |
| 74 | ;; (This is mostly for myself.) | |
| 75 | ;; | |
| 76 | ;; ARC A series of (header,file). No interactions among members. | |
| 77 | ;; | |
| 78 | ;; LZH A series of (header,file). Headers are checksummed. No | |
| 79 | ;; interaction among members. | |
| 80 | ;; | |
| 81 | ;; ZIP A series of (lheader,fil) followed by a "central directory" | |
| 82 | ;; which is a series of (cheader) followed by an end-of- | |
| 83 | ;; central-dir record possibly followed by junk. The e-o-c-d | |
| 84 | ;; links to c-d. cheaders link to lheaders which are basically | |
| 85 | ;; cut-down versions of the cheaders. | |
| 86 | ;; | |
| 87 | ;; ZOO An archive header followed by a series of (header,file). | |
| 88 | ;; Each member header points to the next. The archive is | |
| 89 | ;; terminated by a bogus header with a zero next link. | |
| 90 | ;; ------------------------------------- | |
| 665211a3 KH |
91 | ;; HOOKS: `foo' means one the the supported archive types. |
| 92 | ;; | |
| 93 | ;; archive-mode-hook | |
| 94 | ;; archive-foo-mode-hook | |
| 95 | ;; archive-extract-hooks | |
| 96 | ||
| 97 | ;;; Code: | |
| 98 | ||
| 99 | ;; ------------------------------------------------------------------------- | |
| 100 | ;; Section: Configuration. | |
| 101 | ||
| c38eb0a8 RS |
102 | (defgroup archive nil |
| 103 | "Simple editing of archives." | |
| 104 | :group 'data) | |
| 665211a3 | 105 | |
| c38eb0a8 RS |
106 | (defgroup archive-arc nil |
| 107 | "ARC-specific options to archive." | |
| 108 | :group 'archive) | |
| 109 | ||
| 110 | (defgroup archive-lzh nil | |
| 111 | "LZH-specific options to archive." | |
| 112 | :group 'archive) | |
| 113 | ||
| 114 | (defgroup archive-zip nil | |
| 115 | "ZIP-specific options to archive." | |
| 116 | :group 'archive) | |
| 117 | ||
| 118 | (defgroup archive-zoo nil | |
| 119 | "ZOO-specific options to archive." | |
| 120 | :group 'archive) | |
| 121 | ||
| c38eb0a8 | 122 | (defcustom archive-tmpdir |
| 665211a3 KH |
123 | (expand-file-name |
| 124 | (make-temp-name (if (eq system-type 'ms-dos) "ar" "archive.tmp")) | |
| 125 | (or (getenv "TMPDIR") (getenv "TMP") "/tmp")) | |
| c38eb0a8 RS |
126 | "*Directory for temporary files made by arc-mode.el" |
| 127 | :type 'directory | |
| 128 | :group 'archive) | |
| 665211a3 | 129 | |
| c38eb0a8 | 130 | (defcustom archive-remote-regexp "^/[^/:]*[^/:.]:" |
| eeba65ed RS |
131 | "*Regexp recognizing archive files names that are not local. |
| 132 | A non-local file is one whose file name is not proper outside Emacs. | |
| c38eb0a8 RS |
133 | A local copy of the archive will be used when updating." |
| 134 | :type 'regexp | |
| 135 | :group 'archive) | |
| 136 | ||
| 137 | (defcustom archive-extract-hooks nil | |
| 138 | "*Hooks to run when an archive member has been extracted." | |
| 139 | :type 'hook | |
| 140 | :group 'archive) | |
| 665211a3 KH |
141 | ;; ------------------------------ |
| 142 | ;; Arc archive configuration | |
| 143 | ||
| 144 | ;; We always go via a local file since there seems to be no reliable way | |
| 145 | ;; to extract to stdout without junk getting added. | |
| c38eb0a8 | 146 | (defcustom archive-arc-extract |
| 665211a3 | 147 | '("arc" "x") |
| eeba65ed RS |
148 | "*Program and its options to run in order to extract an arc file member. |
| 149 | Extraction should happen to the current directory. Archive and member | |
| c38eb0a8 RS |
150 | name will be added." |
| 151 | :type '(list (string :tag "Program") | |
| 152 | (repeat :tag "Options" | |
| 153 | :inline t | |
| 154 | (string :format "%v"))) | |
| 155 | :group 'archive-arc) | |
| 156 | ||
| 157 | (defcustom archive-arc-expunge | |
| 665211a3 KH |
158 | '("arc" "d") |
| 159 | "*Program and its options to run in order to delete arc file members. | |
| c38eb0a8 RS |
160 | Archive and member names will be added." |
| 161 | :type '(list (string :tag "Program") | |
| 162 | (repeat :tag "Options" | |
| 163 | :inline t | |
| 164 | (string :format "%v"))) | |
| 165 | :group 'archive-arc) | |
| 166 | ||
| 167 | (defcustom archive-arc-write-file-member | |
| 665211a3 KH |
168 | '("arc" "u") |
| 169 | "*Program and its options to run in order to update an arc file member. | |
| c38eb0a8 RS |
170 | Archive and member name will be added." |
| 171 | :type '(list (string :tag "Program") | |
| 172 | (repeat :tag "Options" | |
| 173 | :inline t | |
| 174 | (string :format "%v"))) | |
| 175 | :group 'archive-arc) | |
| 665211a3 KH |
176 | ;; ------------------------------ |
| 177 | ;; Lzh archive configuration | |
| 178 | ||
| c38eb0a8 | 179 | (defcustom archive-lzh-extract |
| 665211a3 | 180 | '("lha" "pq") |
| eeba65ed RS |
181 | "*Program and its options to run in order to extract an lzh file member. |
| 182 | Extraction should happen to standard output. Archive and member name will | |
| c38eb0a8 RS |
183 | be added." |
| 184 | :type '(list (string :tag "Program") | |
| 185 | (repeat :tag "Options" | |
| 186 | :inline t | |
| 187 | (string :format "%v"))) | |
| 188 | :group 'archive-lzh) | |
| 189 | ||
| 190 | (defcustom archive-lzh-expunge | |
| 665211a3 KH |
191 | '("lha" "d") |
| 192 | "*Program and its options to run in order to delete lzh file members. | |
| c38eb0a8 RS |
193 | Archive and member names will be added." |
| 194 | :type '(list (string :tag "Program") | |
| 195 | (repeat :tag "Options" | |
| 196 | :inline t | |
| 197 | (string :format "%v"))) | |
| 198 | :group 'archive-lzh) | |
| 199 | ||
| 200 | (defcustom archive-lzh-write-file-member | |
| 665211a3 KH |
201 | '("lha" "a") |
| 202 | "*Program and its options to run in order to update an lzh file member. | |
| c38eb0a8 RS |
203 | Archive and member name will be added." |
| 204 | :type '(list (string :tag "Program") | |
| 205 | (repeat :tag "Options" | |
| 206 | :inline t | |
| 207 | (string :format "%v"))) | |
| 208 | :group 'archive-lzh) | |
| 665211a3 KH |
209 | ;; ------------------------------ |
| 210 | ;; Zip archive configuration | |
| 211 | ||
| c38eb0a8 | 212 | (defcustom archive-zip-use-pkzip (memq system-type '(ms-dos windows-nt)) |
| eeba65ed | 213 | "*If non-nil then pkzip option are used instead of zip options. |
| c38eb0a8 RS |
214 | Only set to true for msdog systems!" |
| 215 | :type 'boolean | |
| 216 | :group 'archive-zip) | |
| 665211a3 | 217 | |
| c38eb0a8 | 218 | (defcustom archive-zip-extract |
| b48fa570 | 219 | (if archive-zip-use-pkzip '("pkunzip" "-e" "-o-") '("unzip" "-qq" "-c")) |
| eeba65ed RS |
220 | "*Program and its options to run in order to extract a zip file member. |
| 221 | Extraction should happen to standard output. Archive and member name will | |
| 222 | be added. If `archive-zip-use-pkzip' is non-nil then this program is | |
| c38eb0a8 RS |
223 | expected to extract to a file junking the directory part of the name." |
| 224 | :type '(list (string :tag "Program") | |
| 225 | (repeat :tag "Options" | |
| 226 | :inline t | |
| 227 | (string :format "%v"))) | |
| 228 | :group 'archive-zip) | |
| 665211a3 | 229 | |
| e946e18c | 230 | ;; For several reasons the latter behaviour is not desirable in general. |
| 665211a3 KH |
231 | ;; (1) It uses more disk space. (2) Error checking is worse or non- |
| 232 | ;; existent. (3) It tends to do funny things with other systems' file | |
| 233 | ;; names. | |
| 234 | ||
| c38eb0a8 | 235 | (defcustom archive-zip-expunge |
| 665211a3 KH |
236 | (if archive-zip-use-pkzip '("pkzip" "-d") '("zip" "-d" "-q")) |
| 237 | "*Program and its options to run in order to delete zip file members. | |
| c38eb0a8 RS |
238 | Archive and member names will be added." |
| 239 | :type '(list (string :tag "Program") | |
| 240 | (repeat :tag "Options" | |
| 241 | :inline t | |
| 242 | (string :format "%v"))) | |
| 243 | :group 'archive-zip) | |
| 244 | ||
| 245 | (defcustom archive-zip-update | |
| 665211a3 KH |
246 | (if archive-zip-use-pkzip '("pkzip" "-u") '("zip" "-q")) |
| 247 | "*Program and its options to run in order to update a zip file member. | |
| 248 | Options should ensure that specified directory will be put into the zip | |
| c38eb0a8 RS |
249 | file. Archive and member name will be added." |
| 250 | :type '(list (string :tag "Program") | |
| 251 | (repeat :tag "Options" | |
| 252 | :inline t | |
| 253 | (string :format "%v"))) | |
| 254 | :group 'archive-zip) | |
| 255 | ||
| 256 | (defcustom archive-zip-update-case | |
| 665211a3 | 257 | (if archive-zip-use-pkzip archive-zip-update '("zip" "-q" "-k")) |
| eeba65ed RS |
258 | "*Program and its options to run in order to update a case fiddled zip member. |
| 259 | Options should ensure that specified directory will be put into the zip file. | |
| c38eb0a8 RS |
260 | Archive and member name will be added." |
| 261 | :type '(list (string :tag "Program") | |
| 262 | (repeat :tag "Options" | |
| 263 | :inline t | |
| 264 | (string :format "%v"))) | |
| 265 | :group 'archive-zip) | |
| 266 | ||
| 267 | (defcustom archive-zip-case-fiddle t | |
| eeba65ed RS |
268 | "*If non-nil then zip file members are case fiddled. |
| 269 | Case fiddling will only happen for members created by a system that | |
| c38eb0a8 RS |
270 | uses caseless file names." |
| 271 | :type 'boolean | |
| 272 | :group 'archive-zip) | |
| 665211a3 KH |
273 | ;; ------------------------------ |
| 274 | ;; Zoo archive configuration | |
| 275 | ||
| c38eb0a8 | 276 | (defcustom archive-zoo-extract |
| 665211a3 | 277 | '("zoo" "xpq") |
| eeba65ed RS |
278 | "*Program and its options to run in order to extract a zoo file member. |
| 279 | Extraction should happen to standard output. Archive and member name will | |
| c38eb0a8 RS |
280 | be added." |
| 281 | :type '(list (string :tag "Program") | |
| 282 | (repeat :tag "Options" | |
| 283 | :inline t | |
| 284 | (string :format "%v"))) | |
| 285 | :group 'archive-zoo) | |
| 286 | ||
| 287 | (defcustom archive-zoo-expunge | |
| 665211a3 KH |
288 | '("zoo" "DqPP") |
| 289 | "*Program and its options to run in order to delete zoo file members. | |
| c38eb0a8 RS |
290 | Archive and member names will be added." |
| 291 | :type '(list (string :tag "Program") | |
| 292 | (repeat :tag "Options" | |
| 293 | :inline t | |
| 294 | (string :format "%v"))) | |
| 295 | :group 'archive-zoo) | |
| 296 | ||
| 297 | (defcustom archive-zoo-write-file-member | |
| 665211a3 KH |
298 | '("zoo" "a") |
| 299 | "*Program and its options to run in order to update a zoo file member. | |
| c38eb0a8 RS |
300 | Archive and member name will be added." |
| 301 | :type '(list (string :tag "Program") | |
| 302 | (repeat :tag "Options" | |
| 303 | :inline t | |
| 304 | (string :format "%v"))) | |
| 305 | :group 'archive-zoo) | |
| 665211a3 KH |
306 | ;; ------------------------------------------------------------------------- |
| 307 | ;; Section: Variables | |
| 308 | ||
| 309 | (defvar archive-subtype nil "*Symbol describing archive type.") | |
| 310 | (defvar archive-file-list-start nil "*Position of first contents line.") | |
| 311 | (defvar archive-file-list-end nil "*Position just after last contents line.") | |
| 312 | (defvar archive-proper-file-start nil "*Position of real archive's start.") | |
| 313 | (defvar archive-read-only nil "*Non-nil if the archive is read-only on disk.") | |
| 314 | (defvar archive-remote nil "*Non-nil if the archive is outside file system.") | |
| 315 | (defvar archive-local-name nil "*Name of local copy of remote archive.") | |
| 316 | (defvar archive-mode-map nil "*Local keymap for archive mode listings.") | |
| 317 | (defvar archive-file-name-indent nil "*Column where file names start.") | |
| 318 | ||
| 319 | (defvar archive-alternate-display nil | |
| 320 | "*Non-nil when alternate information is shown.") | |
| 321 | (make-variable-buffer-local 'archive-alternate-display) | |
| 322 | (put 'archive-alternate-display 'permanent-local t) | |
| 323 | ||
| 324 | (defvar archive-superior-buffer nil "*In archive members, points to archive.") | |
| 325 | (put 'archive-superior-buffer 'permanent-local t) | |
| 326 | ||
| 327 | (defvar archive-subfile-mode nil "*Non-nil in archive member buffers.") | |
| 328 | (make-variable-buffer-local 'archive-subfile-mode) | |
| 329 | (put 'archive-subfile-mode 'permanent-local t) | |
| 330 | ||
| c4de97b4 RS |
331 | (defvar archive-files nil |
| 332 | "Vector of file descriptors. | |
| 333 | Each descriptor is a vector of the form | |
| 334 | [EXT-FILE-NAME INT-FILE-NAME CASE-FIDDLED MODE ...]") | |
| 665211a3 | 335 | (make-variable-buffer-local 'archive-files) |
| 43f657ea KH |
336 | |
| 337 | (defvar archive-lemacs | |
| 338 | (string-match "\\(Lucid\\|Xemacs\\)" emacs-version) | |
| 339 | "*Non-nil when running under under Lucid Emacs or Xemacs.") | |
| 665211a3 KH |
340 | ;; ------------------------------------------------------------------------- |
| 341 | ;; Section: Support functions. | |
| 342 | ||
| 343 | (defsubst archive-name (suffix) | |
| 344 | (intern (concat "archive-" (symbol-name archive-subtype) "-" suffix))) | |
| 345 | ||
| 346 | (defun archive-l-e (str &optional len) | |
| eeba65ed RS |
347 | "Convert little endian string/vector to integer. |
| 348 | Alternatively, first argument may be a buffer position in the current buffer | |
| 349 | in which case a second argument, length, should be supplied." | |
| 665211a3 KH |
350 | (if (stringp str) |
| 351 | (setq len (length str)) | |
| 352 | (setq str (buffer-substring str (+ str len)))) | |
| 353 | (let ((result 0) | |
| 354 | (i 0)) | |
| 355 | (while (< i len) | |
| 356 | (setq i (1+ i) | |
| 357 | result (+ (ash result 8) (aref str (- len i))))) | |
| 358 | result)) | |
| 359 | ||
| 360 | (defun archive-int-to-mode (mode) | |
| 361 | "Turn an integer like 0700 (i.e., 448) into a mode string like -rwx------" | |
| 362 | (let ((str (make-string 10 ?-))) | |
| 363 | (or (zerop (logand 16384 mode)) (aset str 0 ?d)) | |
| 364 | (or (zerop (logand 8192 mode)) (aset str 0 ?c)) ; completeness | |
| 365 | (or (zerop (logand 256 mode)) (aset str 1 ?r)) | |
| 366 | (or (zerop (logand 128 mode)) (aset str 2 ?w)) | |
| 367 | (or (zerop (logand 64 mode)) (aset str 3 ?x)) | |
| 368 | (or (zerop (logand 32 mode)) (aset str 4 ?r)) | |
| 369 | (or (zerop (logand 16 mode)) (aset str 5 ?w)) | |
| 370 | (or (zerop (logand 8 mode)) (aset str 6 ?x)) | |
| 371 | (or (zerop (logand 4 mode)) (aset str 7 ?r)) | |
| 372 | (or (zerop (logand 2 mode)) (aset str 8 ?w)) | |
| 373 | (or (zerop (logand 1 mode)) (aset str 9 ?x)) | |
| 374 | (or (zerop (logand 1024 mode)) (aset str 3 (if (zerop (logand 64 mode)) | |
| 375 | ?S ?s))) | |
| 376 | (or (zerop (logand 2048 mode)) (aset str 6 (if (zerop (logand 8 mode)) | |
| 377 | ?S ?s))) | |
| 378 | str)) | |
| 379 | ||
| 380 | (defun archive-calc-mode (oldmode newmode &optional error) | |
| eeba65ed | 381 | "From the integer OLDMODE and the string NEWMODE calculate a new file mode. |
| 665211a3 KH |
382 | NEWMODE may be an octal number including a leading zero in which case it |
| 383 | will become the new mode.\n | |
| 384 | NEWMODE may also be a relative specification like \"og-rwx\" in which case | |
| 385 | OLDMODE will be modified accordingly just like chmod(2) would have done.\n | |
| 386 | If optional third argument ERROR is non-nil an error will be signaled if | |
| 387 | the mode is invalid. If ERROR is nil then nil will be returned." | |
| 388 | (cond ((string-match "^0[0-7]*$" newmode) | |
| 389 | (let ((result 0) | |
| 390 | (len (length newmode)) | |
| 391 | (i 1)) | |
| 392 | (while (< i len) | |
| 393 | (setq result (+ (lsh result 3) (aref newmode i) (- ?0)) | |
| 394 | i (1+ i))) | |
| 395 | (logior (logand oldmode 65024) result))) | |
| 396 | ((string-match "^\\([agou]+\\)\\([---+=]\\)\\([rwxst]+\\)$" newmode) | |
| 397 | (let ((who 0) | |
| 398 | (result oldmode) | |
| 399 | (op (aref newmode (match-beginning 2))) | |
| 400 | (bits 0) | |
| 401 | (i (match-beginning 3))) | |
| 402 | (while (< i (match-end 3)) | |
| 403 | (let ((rwx (aref newmode i))) | |
| 404 | (setq bits (logior bits (cond ((= rwx ?r) 292) | |
| 405 | ((= rwx ?w) 146) | |
| 406 | ((= rwx ?x) 73) | |
| 407 | ((= rwx ?s) 3072) | |
| 408 | ((= rwx ?t) 512))) | |
| 409 | i (1+ i)))) | |
| 410 | (while (< who (match-end 1)) | |
| 411 | (let* ((whoc (aref newmode who)) | |
| 412 | (whomask (cond ((= whoc ?a) 4095) | |
| 413 | ((= whoc ?u) 1472) | |
| 414 | ((= whoc ?g) 2104) | |
| 415 | ((= whoc ?o) 7)))) | |
| 416 | (if (= op ?=) | |
| 417 | (setq result (logand result (lognot whomask)))) | |
| 418 | (if (= op ?-) | |
| 419 | (setq result (logand result (lognot (logand whomask bits)))) | |
| 420 | (setq result (logior result (logand whomask bits))))) | |
| 421 | (setq who (1+ who))) | |
| 422 | result)) | |
| 423 | (t | |
| 424 | (if error | |
| 425 | (error "Invalid mode specification: %s" newmode))))) | |
| 426 | ||
| 427 | (defun archive-dosdate (date) | |
| 428 | "Stringify dos packed DATE record." | |
| 429 | (let ((year (+ 1980 (logand (ash date -9) 127))) | |
| 430 | (month (logand (ash date -5) 15)) | |
| 431 | (day (logand date 31))) | |
| 432 | (if (or (> month 12) (< month 1)) | |
| 433 | "" | |
| 434 | (format "%2d-%s-%d" | |
| 435 | day | |
| 436 | (aref ["Jan" "Feb" "Mar" "Apr" "May" "Jun" | |
| 437 | "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"] (1- month)) | |
| 438 | year)))) | |
| 439 | ||
| 440 | (defun archive-dostime (time) | |
| 441 | "Stringify dos packed TIME record." | |
| 442 | (let ((hour (logand (ash time -11) 31)) | |
| 443 | (minute (logand (ash time -5) 53)) | |
| 444 | (second (* 2 (logand time 31)))) ; 2 seconds resolution | |
| 445 | (format "%02d:%02d:%02d" hour minute second))) | |
| 446 | ||
| 447 | ;;(defun archive-unixdate (low high) | |
| 448 | ;; "Stringify unix (LOW HIGH) date." | |
| 449 | ;; (let ((str (current-time-string (cons high low)))) | |
| 450 | ;; (format "%s-%s-%s" | |
| 451 | ;; (substring str 8 9) | |
| 452 | ;; (substring str 4 7) | |
| 453 | ;; (substring str 20 24)))) | |
| 454 | ||
| 455 | ;;(defun archive-unixtime (low high) | |
| 456 | ;; "Stringify unix (LOW HIGH) time." | |
| 457 | ;; (let ((str (current-time-string (cons high low)))) | |
| 458 | ;; (substring str 11 19))) | |
| 459 | ||
| 460 | (defun archive-get-lineno () | |
| 461 | (if (>= (point) archive-file-list-start) | |
| 462 | (count-lines archive-file-list-start | |
| 463 | (save-excursion (beginning-of-line) (point))) | |
| 464 | 0)) | |
| 465 | ||
| 466 | (defun archive-get-descr (&optional noerror) | |
| eeba65ed RS |
467 | "Return the descriptor vector for file at point. |
| 468 | Does not signal an error if optional second argument NOERROR is non-nil." | |
| 665211a3 KH |
469 | (let ((no (archive-get-lineno))) |
| 470 | (if (and (>= (point) archive-file-list-start) | |
| 471 | (< no (length archive-files))) | |
| 472 | (let ((item (aref archive-files no))) | |
| 473 | (if (vectorp item) | |
| 474 | item | |
| 475 | (if (not noerror) | |
| 476 | (error "Entry is not a regular member of the archive")))) | |
| 477 | (if (not noerror) | |
| 478 | (error "Line does not describe a member of the archive"))))) | |
| 479 | ;; ------------------------------------------------------------------------- | |
| 480 | ;; Section: the mode definition | |
| 481 | ||
| 9199a670 | 482 | ;;;###autoload |
| 665211a3 | 483 | (defun archive-mode (&optional force) |
| eeba65ed RS |
484 | "Major mode for viewing an archive file in a dired-like way. |
| 485 | You can move around using the usual cursor motion commands. | |
| 665211a3 KH |
486 | Letters no longer insert themselves. |
| 487 | Type `e' to pull a file out of the archive and into its own buffer; | |
| 488 | or click mouse-2 on the file's line in the archive mode buffer. | |
| 489 | ||
| 490 | If you edit a sub-file of this archive (as with the `e' command) and | |
| 491 | save it, the contents of that buffer will be saved back into the | |
| 492 | archive. | |
| 493 | ||
| 494 | \\{archive-mode-map}" | |
| 495 | ;; This is not interactive because you shouldn't be turning this | |
| 496 | ;; mode on and off. You can corrupt things that way. | |
| 497 | (if (zerop (buffer-size)) | |
| 498 | ;; At present we cannot create archives from scratch | |
| 499 | (funcall default-major-mode) | |
| 500 | (if (and (not force) archive-files) nil | |
| 501 | (let* ((type (archive-find-type)) | |
| 502 | (typename (copy-sequence (symbol-name type)))) | |
| 503 | (aset typename 0 (upcase (aref typename 0))) | |
| 504 | (kill-all-local-variables) | |
| 505 | (make-local-variable 'archive-subtype) | |
| 506 | (setq archive-subtype type) | |
| 507 | ||
| 508 | ;; Buffer contains treated image of file before the file contents | |
| 509 | (make-local-variable 'revert-buffer-function) | |
| 510 | (setq revert-buffer-function 'archive-mode-revert) | |
| 511 | (auto-save-mode 0) | |
| 2c1e5f9b KH |
512 | (make-local-variable 'write-contents-hooks) |
| 513 | (add-hook 'write-contents-hooks 'archive-write-file) | |
| 665211a3 KH |
514 | |
| 515 | ;; Real file contents is binary | |
| 516 | (make-local-variable 'require-final-newline) | |
| 517 | (setq require-final-newline nil) | |
| 518 | (make-local-variable 'enable-local-variables) | |
| 519 | (setq enable-local-variables nil) | |
| 665211a3 KH |
520 | |
| 521 | (make-local-variable 'archive-read-only) | |
| 522 | (setq archive-read-only (not (file-writable-p (buffer-file-name)))) | |
| 523 | ||
| 524 | ;; Should we use a local copy when accessing from outside Emacs? | |
| 525 | (make-local-variable 'archive-local-name) | |
| 526 | (make-local-variable 'archive-remote) | |
| 527 | (setq archive-remote (string-match archive-remote-regexp | |
| 528 | (buffer-file-name))) | |
| 529 | ||
| 530 | (setq major-mode 'archive-mode) | |
| 531 | (setq mode-name (concat typename "-Archive")) | |
| 532 | ;; Run archive-foo-mode-hook and archive-mode-hook | |
| 533 | (run-hooks (archive-name "mode-hook") 'archive-mode-hook) | |
| 534 | (use-local-map archive-mode-map)) | |
| 535 | ||
| 536 | (make-local-variable 'archive-proper-file-start) | |
| 537 | (make-local-variable 'archive-file-list-start) | |
| 538 | (make-local-variable 'archive-file-list-end) | |
| 539 | (make-local-variable 'archive-file-name-indent) | |
| 540 | (archive-summarize) | |
| 541 | (setq buffer-read-only t)))) | |
| 542 | ||
| 543 | ;; Archive mode is suitable only for specially formatted data. | |
| 544 | (put 'archive-mode 'mode-class 'special) | |
| 545 | ;; ------------------------------------------------------------------------- | |
| 546 | ;; Section: Key maps | |
| 547 | ||
| 548 | (if archive-mode-map nil | |
| 549 | (setq archive-mode-map (make-keymap)) | |
| 550 | (suppress-keymap archive-mode-map) | |
| 551 | (define-key archive-mode-map " " 'archive-next-line) | |
| 552 | (define-key archive-mode-map "a" 'archive-alternate-display) | |
| 553 | ;;(define-key archive-mode-map "c" 'archive-copy) | |
| 554 | (define-key archive-mode-map "d" 'archive-flag-deleted) | |
| 555 | (define-key archive-mode-map "\C-d" 'archive-flag-deleted) | |
| 556 | (define-key archive-mode-map "e" 'archive-extract) | |
| 557 | (define-key archive-mode-map "f" 'archive-extract) | |
| 558 | (define-key archive-mode-map "\C-m" 'archive-extract) | |
| 665211a3 KH |
559 | (define-key archive-mode-map "g" 'revert-buffer) |
| 560 | (define-key archive-mode-map "h" 'describe-mode) | |
| 561 | (define-key archive-mode-map "m" 'archive-mark) | |
| 562 | (define-key archive-mode-map "n" 'archive-next-line) | |
| 563 | (define-key archive-mode-map "\C-n" 'archive-next-line) | |
| 564 | (define-key archive-mode-map [down] 'archive-next-line) | |
| 565 | (define-key archive-mode-map "o" 'archive-extract-other-window) | |
| 566 | (define-key archive-mode-map "p" 'archive-previous-line) | |
| 567 | (define-key archive-mode-map "\C-p" 'archive-previous-line) | |
| 568 | (define-key archive-mode-map [up] 'archive-previous-line) | |
| 569 | (define-key archive-mode-map "r" 'archive-rename-entry) | |
| 570 | (define-key archive-mode-map "u" 'archive-unflag) | |
| 571 | (define-key archive-mode-map "\M-\C-?" 'archive-unmark-all-files) | |
| 572 | (define-key archive-mode-map "v" 'archive-view) | |
| 573 | (define-key archive-mode-map "x" 'archive-expunge) | |
| 574 | (define-key archive-mode-map "\177" 'archive-unflag-backwards) | |
| 575 | (define-key archive-mode-map "E" 'archive-extract-other-window) | |
| 576 | (define-key archive-mode-map "M" 'archive-chmod-entry) | |
| 577 | (define-key archive-mode-map "G" 'archive-chgrp-entry) | |
| 578 | (define-key archive-mode-map "O" 'archive-chown-entry) | |
| 43f657ea KH |
579 | |
| 580 | (if archive-lemacs | |
| 581 | (progn | |
| 582 | ;; Not a nice "solution" but it'll have to do | |
| 583 | (define-key archive-mode-map "\C-xu" 'archive-undo) | |
| 584 | (define-key archive-mode-map "\C-_" 'archive-undo)) | |
| 585 | (substitute-key-definition 'undo 'archive-undo | |
| 586 | archive-mode-map global-map)) | |
| 587 | ||
| 588 | (define-key archive-mode-map | |
| 589 | (if archive-lemacs 'button2 [mouse-2]) 'archive-mouse-extract) | |
| 590 | ||
| 591 | (if archive-lemacs | |
| 592 | () ; out of luck | |
| 593 | ;; Get rid of the Edit menu bar item to save space. | |
| 594 | (define-key archive-mode-map [menu-bar edit] 'undefined) | |
| 595 | ||
| 596 | (define-key archive-mode-map [menu-bar immediate] | |
| 597 | (cons "Immediate" (make-sparse-keymap "Immediate"))) | |
| 598 | (define-key archive-mode-map [menu-bar immediate alternate] | |
| 599 | '("Alternate Display" . archive-alternate-display)) | |
| 600 | (put 'archive-alternate-display 'menu-enable | |
| 601 | '(boundp (archive-name "alternate-display"))) | |
| 602 | (define-key archive-mode-map [menu-bar immediate view] | |
| 603 | '("View This File" . archive-view)) | |
| 604 | (define-key archive-mode-map [menu-bar immediate display] | |
| 605 | '("Display in Other Window" . archive-display-other-window)) | |
| 606 | (define-key archive-mode-map [menu-bar immediate find-file-other-window] | |
| 607 | '("Find in Other Window" . archive-extract-other-window)) | |
| 608 | (define-key archive-mode-map [menu-bar immediate find-file] | |
| 609 | '("Find This File" . archive-extract)) | |
| 610 | ||
| 611 | (define-key archive-mode-map [menu-bar mark] | |
| 612 | (cons "Mark" (make-sparse-keymap "Mark"))) | |
| 613 | (define-key archive-mode-map [menu-bar mark unmark-all] | |
| 614 | '("Unmark All" . archive-unmark-all-files)) | |
| 615 | (define-key archive-mode-map [menu-bar mark deletion] | |
| 616 | '("Flag" . archive-flag-deleted)) | |
| 617 | (define-key archive-mode-map [menu-bar mark unmark] | |
| 618 | '("Unflag" . archive-unflag)) | |
| 619 | (define-key archive-mode-map [menu-bar mark mark] | |
| 620 | '("Mark" . archive-mark)) | |
| 621 | ||
| 622 | (define-key archive-mode-map [menu-bar operate] | |
| 623 | (cons "Operate" (make-sparse-keymap "Operate"))) | |
| 624 | (define-key archive-mode-map [menu-bar operate chown] | |
| 625 | '("Change Owner..." . archive-chown-entry)) | |
| 626 | (put 'archive-chown-entry 'menu-enable | |
| 627 | '(fboundp (archive-name "chown-entry"))) | |
| 628 | (define-key archive-mode-map [menu-bar operate chgrp] | |
| 629 | '("Change Group..." . archive-chgrp-entry)) | |
| 630 | (put 'archive-chgrp-entry 'menu-enable | |
| 631 | '(fboundp (archive-name "chgrp-entry"))) | |
| 632 | (define-key archive-mode-map [menu-bar operate chmod] | |
| 633 | '("Change Mode..." . archive-chmod-entry)) | |
| 634 | (put 'archive-chmod-entry 'menu-enable | |
| 635 | '(fboundp (archive-name "chmod-entry"))) | |
| 636 | (define-key archive-mode-map [menu-bar operate rename] | |
| 637 | '("Rename to..." . archive-rename-entry)) | |
| 638 | (put 'archive-rename-entry 'menu-enable | |
| 639 | '(fboundp (archive-name "rename-entry"))) | |
| 640 | ;;(define-key archive-mode-map [menu-bar operate copy] | |
| 641 | ;; '("Copy to..." . archive-copy)) | |
| 642 | (define-key archive-mode-map [menu-bar operate expunge] | |
| 643 | '("Expunge Marked Files" . archive-expunge)) | |
| 644 | )) | |
| 665211a3 KH |
645 | |
| 646 | (let* ((item1 '(archive-subfile-mode " Archive")) | |
| b48fa570 | 647 | (items (list item1))) |
| 665211a3 KH |
648 | (or (member item1 minor-mode-alist) |
| 649 | (setq minor-mode-alist (append items minor-mode-alist)))) | |
| 650 | ;; ------------------------------------------------------------------------- | |
| 651 | (defun archive-find-type () | |
| 652 | (widen) | |
| 653 | (goto-char (point-min)) | |
| 654 | ;; The funny [] here make it unlikely that the .elc file will be treated | |
| 655 | ;; as an archive by other software. | |
| 656 | (let (case-fold-search) | |
| 657 | (cond ((looking-at "[P]K\003\004") 'zip) | |
| a56636ae | 658 | ((looking-at "..-l[hz][0-9ds]-") 'lzh) |
| 665211a3 KH |
659 | ((looking-at "....................[\334]\247\304\375") 'zoo) |
| 660 | ((and (looking-at "\C-z") ; signature too simple, IMHO | |
| 661 | (string-match "\\.[aA][rR][cC]$" | |
| 662 | (or buffer-file-name (buffer-name)))) | |
| 663 | 'arc) | |
| 664 | (t (error "Buffer format not recognized."))))) | |
| 665 | ;; ------------------------------------------------------------------------- | |
| 666 | (defun archive-summarize () | |
| 667 | "Parse the contents of the archive file in the current buffer. | |
| 668 | Place a dired-like listing on the front; | |
| 669 | then narrow to it, so that only that listing | |
| 670 | is visible (and the real data of the buffer is hidden)." | |
| 671 | (widen) | |
| 672 | (let (buffer-read-only) | |
| 673 | (message "Parsing archive file...") | |
| 674 | (buffer-disable-undo (current-buffer)) | |
| 675 | (setq archive-files (funcall (archive-name "summarize"))) | |
| 676 | (message "Parsing archive file...done.") | |
| 677 | (setq archive-proper-file-start (point-marker)) | |
| 678 | (narrow-to-region (point-min) (point)) | |
| 679 | (set-buffer-modified-p nil) | |
| 680 | (buffer-enable-undo)) | |
| 681 | (goto-char archive-file-list-start) | |
| 682 | (archive-next-line 0)) | |
| 683 | ||
| 684 | (defun archive-resummarize () | |
| 685 | "Recreate the contents listing of an archive." | |
| 686 | (let ((modified (buffer-modified-p)) | |
| 687 | (no (archive-get-lineno)) | |
| 688 | buffer-read-only) | |
| 689 | (widen) | |
| 690 | (delete-region (point-min) archive-proper-file-start) | |
| 691 | (archive-summarize) | |
| 692 | (set-buffer-modified-p modified) | |
| 693 | (goto-char archive-file-list-start) | |
| 694 | (archive-next-line no))) | |
| 695 | ||
| 696 | (defun archive-summarize-files (files) | |
| c4de97b4 | 697 | "Insert a description of a list of files annotated with proper mouse face." |
| 665211a3 KH |
698 | (setq archive-file-list-start (point-marker)) |
| 699 | (setq archive-file-name-indent (if files (aref (car files) 1) 0)) | |
| 700 | ;; We don't want to do an insert for each element since that takes too | |
| 701 | ;; long when the archive -- which has to be moved in memory -- is large. | |
| 702 | (insert | |
| 703 | (apply | |
| 704 | (function concat) | |
| 705 | (mapcar | |
| 43f657ea KH |
706 | (function |
| 707 | (lambda (fil) | |
| 708 | ;; Using `concat' here copies the text also, so we can add | |
| 709 | ;; properties without problems. | |
| 710 | (let ((text (concat (aref fil 0) "\n"))) | |
| 711 | (if archive-lemacs | |
| 712 | () ; out of luck | |
| 713 | (put-text-property (aref fil 1) (aref fil 2) | |
| 714 | 'mouse-face 'highlight | |
| 715 | text)) | |
| 716 | text))) | |
| 665211a3 KH |
717 | files))) |
| 718 | (setq archive-file-list-end (point-marker))) | |
| 719 | ||
| 720 | (defun archive-alternate-display () | |
| eeba65ed RS |
721 | "Toggle alternative display. |
| 722 | To avoid very long lines some archive mode don't show all information. | |
| 723 | This function changes the set of information shown for each files." | |
| 665211a3 KH |
724 | (interactive) |
| 725 | (setq archive-alternate-display (not archive-alternate-display)) | |
| 726 | (archive-resummarize)) | |
| 727 | ;; ------------------------------------------------------------------------- | |
| 728 | ;; Section: Local archive copy handling | |
| 729 | ||
| 730 | (defun archive-maybe-copy (archive) | |
| 731 | (if archive-remote | |
| 732 | (let ((start (point-max))) | |
| 733 | (setq archive-local-name (expand-file-name | |
| 734 | (file-name-nondirectory archive) | |
| 735 | archive-tmpdir)) | |
| 736 | (make-directory archive-tmpdir t) | |
| 737 | (save-restriction | |
| 738 | (widen) | |
| 739 | (write-region start (point-max) archive-local-name nil 'nomessage)) | |
| 740 | archive-local-name) | |
| 741 | (if (buffer-modified-p) (save-buffer)) | |
| 742 | archive)) | |
| 743 | ||
| 744 | (defun archive-maybe-update (unchanged) | |
| 745 | (if archive-remote | |
| 746 | (let ((name archive-local-name) | |
| 747 | (modified (buffer-modified-p)) | |
| 748 | buffer-read-only) | |
| 749 | (if unchanged nil | |
| 750 | (erase-buffer) | |
| 751 | (insert-file-contents name) | |
| 752 | (archive-mode t)) | |
| 753 | (archive-delete-local name) | |
| 754 | (if (not unchanged) | |
| 755 | (message "Archive file must be saved for changes to take effect")) | |
| 756 | (set-buffer-modified-p (or modified (not unchanged)))))) | |
| 757 | ||
| 758 | (defun archive-delete-local (name) | |
| eeba65ed | 759 | "Delete file NAME and its parents up to and including `archive-tmpdir'." |
| 665211a3 KH |
760 | (let ((again t) |
| 761 | (top (directory-file-name (file-name-as-directory archive-tmpdir)))) | |
| 762 | (condition-case nil | |
| 763 | (delete-file name) | |
| 764 | (error nil)) | |
| 765 | (while again | |
| 766 | (setq name (directory-file-name (file-name-directory name))) | |
| 767 | (condition-case nil | |
| 768 | (delete-directory name) | |
| 769 | (error nil)) | |
| 770 | (if (string= name top) (setq again nil))))) | |
| 771 | ;; ------------------------------------------------------------------------- | |
| 772 | ;; Section: Member extraction | |
| 773 | ||
| 774 | (defun archive-mouse-extract (event) | |
| 775 | "Extract a file whose name you click on." | |
| 776 | (interactive "e") | |
| 43f657ea KH |
777 | (mouse-set-point event) |
| 778 | (switch-to-buffer | |
| 779 | (save-excursion | |
| 780 | (archive-extract) | |
| 781 | (current-buffer)))) | |
| 665211a3 KH |
782 | |
| 783 | (defun archive-extract (&optional other-window-p) | |
| 784 | "In archive mode, extract this entry of the archive into its own buffer." | |
| 785 | (interactive) | |
| 786 | (let* ((view-p (eq other-window-p 'view)) | |
| 787 | (descr (archive-get-descr)) | |
| 788 | (ename (aref descr 0)) | |
| 789 | (iname (aref descr 1)) | |
| 790 | (archive-buffer (current-buffer)) | |
| 791 | (arcdir default-directory) | |
| 792 | (archive (buffer-file-name)) | |
| 793 | (arcname (file-name-nondirectory archive)) | |
| 794 | (bufname (concat (file-name-nondirectory iname) " (" arcname ")")) | |
| 795 | (extractor (archive-name "extract")) | |
| 796 | (read-only-p (or archive-read-only view-p)) | |
| 797 | (buffer (get-buffer bufname)) | |
| 798 | (just-created nil)) | |
| 799 | (if buffer | |
| 800 | nil | |
| 801 | (setq archive (archive-maybe-copy archive)) | |
| 802 | (setq buffer (get-buffer-create bufname)) | |
| 803 | (setq just-created t) | |
| 804 | (save-excursion | |
| 805 | (set-buffer buffer) | |
| 806 | (setq buffer-file-name | |
| 807 | (expand-file-name (concat arcname ":" iname))) | |
| 808 | (setq buffer-file-truename | |
| 809 | (abbreviate-file-name buffer-file-name)) | |
| 810 | ;; Set the default-directory to the dir of the superior buffer. | |
| 811 | (setq default-directory arcdir) | |
| 812 | (make-local-variable 'archive-superior-buffer) | |
| 813 | (setq archive-superior-buffer archive-buffer) | |
| 814 | (make-local-variable 'local-write-file-hooks) | |
| 815 | (add-hook 'local-write-file-hooks 'archive-write-file-member) | |
| 816 | (setq archive-subfile-mode descr) | |
| b48fa570 EZ |
817 | ; (if (boundp 'default-buffer-file-type) |
| 818 | ; (setq buffer-file-type t)) | |
| 819 | (if (and | |
| 820 | (null | |
| 821 | (if (fboundp extractor) | |
| 822 | (funcall extractor archive ename) | |
| 823 | (archive-*-extract archive ename (symbol-value extractor)))) | |
| 824 | just-created) | |
| 825 | (progn | |
| 826 | (set-buffer-modified-p nil) | |
| 827 | (kill-buffer buffer)) | |
| 828 | (goto-char (point-min)) | |
| 829 | (rename-buffer bufname) | |
| 830 | (setq buffer-read-only read-only-p) | |
| 831 | (setq buffer-undo-list nil) | |
| 832 | (set-buffer-modified-p nil) | |
| 833 | (setq buffer-saved-size (buffer-size)) | |
| 834 | (normal-mode) | |
| 835 | ;; Just in case an archive occurs inside another archive. | |
| 836 | (if (eq major-mode 'archive-mode) | |
| 837 | (setq archive-remote t)) | |
| 838 | (run-hooks 'archive-extract-hooks)) | |
| 839 | (archive-maybe-update t))) | |
| 840 | (or (not (buffer-name buffer)) | |
| 841 | (progn | |
| 842 | (if view-p | |
| 843 | (view-buffer buffer (and just-created 'kill-buffer))) | |
| 844 | (if (eq other-window-p 'display) | |
| 845 | (display-buffer buffer) | |
| 846 | (if other-window-p | |
| 847 | (switch-to-buffer-other-window buffer) | |
| 848 | (switch-to-buffer buffer))))))) | |
| 665211a3 KH |
849 | |
| 850 | (defun archive-*-extract (archive name command) | |
| 851 | (let* ((default-directory (file-name-as-directory archive-tmpdir)) | |
| 852 | (tmpfile (expand-file-name (file-name-nondirectory name) | |
| b48fa570 EZ |
853 | default-directory)) |
| 854 | exit-status success) | |
| 665211a3 | 855 | (make-directory (directory-file-name default-directory) t) |
| b48fa570 EZ |
856 | (setq exit-status |
| 857 | (apply 'call-process | |
| 858 | (car command) | |
| 859 | nil | |
| 860 | nil | |
| 861 | nil | |
| 862 | (append (cdr command) (list archive name)))) | |
| 863 | (cond ((and (numberp exit-status) (= exit-status 0)) | |
| 864 | (if (not (file-exists-p tmpfile)) | |
| 865 | (ding (message "`%s': no such file or directory" tmpfile)) | |
| 866 | (insert-file-contents tmpfile) | |
| 867 | (setq success t))) | |
| 868 | ((numberp exit-status) | |
| 869 | (ding | |
| 870 | (message "`%s' exited with status %d" (car command) exit-status))) | |
| 871 | ((stringp exit-status) | |
| 872 | (ding (message "`%s' aborted: %s" (car command) exit-status))) | |
| 873 | (t | |
| 874 | (ding (message "`%s' failed" (car command))))) | |
| 875 | (archive-delete-local tmpfile) | |
| 876 | success)) | |
| 665211a3 KH |
877 | |
| 878 | (defun archive-extract-by-stdout (archive name command) | |
| b48fa570 EZ |
879 | ;; We need the coding system of the output of the extract program, |
| 880 | ;; including the EOL encoding, be decoded dynamically, since what | |
| 881 | ;; the extract program outputs is the contents of some file. | |
| 882 | (let ((coding-system-for-read (or coding-system-for-read 'undecided)) | |
| 883 | (inherit-process-coding-system t)) | |
| 665211a3 KH |
884 | (apply 'call-process |
| 885 | (car command) | |
| 886 | nil | |
| 887 | t | |
| 888 | nil | |
| 889 | (append (cdr command) (list archive name))))) | |
| 890 | ||
| 891 | (defun archive-extract-other-window () | |
| 892 | "In archive mode, find this member in another window." | |
| 893 | (interactive) | |
| 894 | (archive-extract t)) | |
| 895 | ||
| 896 | (defun archive-display-other-window () | |
| 897 | "In archive mode, display this member in another window." | |
| 898 | (interactive) | |
| 899 | (archive-extract 'display)) | |
| 900 | ||
| 901 | (defun archive-view () | |
| 902 | "In archive mode, view the member on this line." | |
| 903 | (interactive) | |
| 904 | (archive-extract 'view)) | |
| 905 | ||
| 906 | (defun archive-add-new-member (arcbuf name) | |
| eeba65ed | 907 | "Add current buffer to the archive in ARCBUF naming it NAME." |
| 665211a3 KH |
908 | (interactive |
| 909 | (list (get-buffer | |
| 910 | (read-buffer "Buffer containing archive: " | |
| 911 | ;; Find first archive buffer and suggest that | |
| 912 | (let ((bufs (buffer-list))) | |
| 913 | (while (and bufs (not (eq (save-excursion | |
| 914 | (set-buffer (car bufs)) | |
| 915 | major-mode) | |
| 916 | 'archive-mode))) | |
| 917 | (setq bufs (cdr bufs))) | |
| 918 | (if bufs | |
| 919 | (car bufs) | |
| 920 | (error "There are no archive buffers"))) | |
| 921 | t)) | |
| 922 | (read-string "File name in archive: " | |
| 923 | (if buffer-file-name | |
| 924 | (file-name-nondirectory buffer-file-name) | |
| 925 | "")))) | |
| 926 | (save-excursion | |
| 927 | (set-buffer arcbuf) | |
| 928 | (or (eq major-mode 'archive-mode) | |
| 929 | (error "Buffer is not an archive buffer")) | |
| 930 | (if archive-read-only | |
| 931 | (error "Archive is read-only"))) | |
| 932 | (if (eq arcbuf (current-buffer)) | |
| 933 | (error "An archive buffer cannot be added to itself")) | |
| 934 | (if (string= name "") | |
| 935 | (error "Archive members may not be given empty names")) | |
| 936 | (let ((func (save-excursion (set-buffer arcbuf) | |
| 937 | (archive-name "add-new-member"))) | |
| 938 | (membuf (current-buffer))) | |
| 939 | (if (fboundp func) | |
| 940 | (save-excursion | |
| 941 | (set-buffer arcbuf) | |
| 942 | (funcall func buffer-file-name membuf name)) | |
| 943 | (error "Adding a new member is not supported for this archive type")))) | |
| 944 | ;; ------------------------------------------------------------------------- | |
| 945 | ;; Section: IO stuff | |
| 946 | ||
| 665211a3 | 947 | (defun archive-write-file-member () |
| b48fa570 EZ |
948 | (save-excursion |
| 949 | (save-restriction | |
| 950 | (message "Updating archive...") | |
| 951 | (widen) | |
| 952 | (let ((writer (save-excursion (set-buffer archive-superior-buffer) | |
| 953 | (archive-name "write-file-member"))) | |
| 954 | (archive (save-excursion (set-buffer archive-superior-buffer) | |
| 955 | (buffer-file-name)))) | |
| 956 | (if (fboundp writer) | |
| 957 | (funcall writer archive archive-subfile-mode) | |
| 958 | (archive-*-write-file-member archive | |
| 959 | archive-subfile-mode | |
| 960 | (symbol-value writer)))) | |
| 961 | (set-buffer-modified-p nil) | |
| 962 | (message "Updating archive...done") | |
| 963 | (set-buffer archive-superior-buffer) | |
| 964 | (revert-buffer) | |
| 965 | t))) | |
| 665211a3 KH |
966 | |
| 967 | (defun archive-*-write-file-member (archive descr command) | |
| 968 | (let* ((ename (aref descr 0)) | |
| 969 | (tmpfile (expand-file-name ename archive-tmpdir)) | |
| 970 | (top (directory-file-name (file-name-as-directory archive-tmpdir))) | |
| 971 | (default-directory (file-name-as-directory top))) | |
| 972 | (unwind-protect | |
| 973 | (progn | |
| 974 | (make-directory (file-name-directory tmpfile) t) | |
| 975 | (write-region (point-min) (point-max) tmpfile nil 'nomessage) | |
| 976 | (if (aref descr 3) | |
| 977 | ;; Set the file modes, but make sure we can read it. | |
| 978 | (set-file-modes tmpfile (logior ?\400 (aref descr 3)))) | |
| 979 | (let ((exitcode (apply 'call-process | |
| 980 | (car command) | |
| 981 | nil | |
| 982 | nil | |
| 983 | nil | |
| 984 | (append (cdr command) (list archive ename))))) | |
| 985 | (if (equal exitcode 0) | |
| 986 | nil | |
| 987 | (error "Updating was unsuccessful (%S)" exitcode)))) | |
| 988 | (archive-delete-local tmpfile)))) | |
| 989 | ||
| 990 | (defun archive-write-file () | |
| 991 | (save-excursion | |
| 992 | (write-region archive-proper-file-start (point-max) buffer-file-name nil t) | |
| 993 | (set-buffer-modified-p nil) | |
| 994 | t)) | |
| 995 | ;; ------------------------------------------------------------------------- | |
| 996 | ;; Section: Marking and unmarking. | |
| 997 | ||
| 998 | (defun archive-flag-deleted (p &optional type) | |
| 999 | "In archive mode, mark this member to be deleted from the archive. | |
| 1000 | With a prefix argument, mark that many files." | |
| 1001 | (interactive "p") | |
| 1002 | (or type (setq type ?D)) | |
| 1003 | (beginning-of-line) | |
| 1004 | (let ((sign (if (>= p 0) +1 -1)) | |
| 1005 | (modified (buffer-modified-p)) | |
| 1006 | buffer-read-only) | |
| 1007 | (while (not (zerop p)) | |
| 1008 | (if (archive-get-descr t) | |
| 1009 | (progn | |
| 1010 | (delete-char 1) | |
| 1011 | (insert type))) | |
| 1012 | (forward-line sign) | |
| 1013 | (setq p (- p sign))) | |
| 1014 | (set-buffer-modified-p modified)) | |
| 1015 | (archive-next-line 0)) | |
| 1016 | ||
| 1017 | (defun archive-unflag (p) | |
| 1018 | "In archive mode, un-mark this member if it is marked to be deleted. | |
| 1019 | With a prefix argument, un-mark that many files forward." | |
| 1020 | (interactive "p") | |
| 1021 | (archive-flag-deleted p ? )) | |
| 1022 | ||
| 1023 | (defun archive-unflag-backwards (p) | |
| 1024 | "In archive mode, un-mark this member if it is marked to be deleted. | |
| 1025 | With a prefix argument, un-mark that many members backward." | |
| 1026 | (interactive "p") | |
| 1027 | (archive-flag-deleted (- p) ? )) | |
| 1028 | ||
| 1029 | (defun archive-unmark-all-files () | |
| 1030 | "Remove all marks." | |
| 1031 | (interactive) | |
| 1032 | (let ((modified (buffer-modified-p)) | |
| 1033 | buffer-read-only) | |
| 1034 | (save-excursion | |
| 1035 | (goto-char archive-file-list-start) | |
| 1036 | (while (< (point) archive-file-list-end) | |
| 1037 | (or (= (following-char) ? ) | |
| 1038 | (progn (delete-char 1) (insert ? ))) | |
| 1039 | (forward-line 1))) | |
| 1040 | (set-buffer-modified-p modified))) | |
| 1041 | ||
| 1042 | (defun archive-mark (p) | |
| 1043 | "In archive mode, mark this member for group operations. | |
| 1044 | With a prefix argument, mark that many members. | |
| 1045 | Use \\[archive-unmark-all-files] to remove all marks." | |
| 1046 | (interactive "p") | |
| 1047 | (archive-flag-deleted p ?*)) | |
| 1048 | ||
| 1049 | (defun archive-get-marked (mark &optional default) | |
| 1050 | (let (files) | |
| 1051 | (save-excursion | |
| 1052 | (goto-char archive-file-list-start) | |
| 1053 | (while (< (point) archive-file-list-end) | |
| 1054 | (if (= (following-char) mark) | |
| 1055 | (setq files (cons (archive-get-descr) files))) | |
| 1056 | (forward-line 1))) | |
| 1057 | (or (nreverse files) | |
| 1058 | (and default | |
| 1059 | (list (archive-get-descr)))))) | |
| 1060 | ;; ------------------------------------------------------------------------- | |
| 1061 | ;; Section: Operate | |
| 1062 | ||
| 1063 | (defun archive-next-line (p) | |
| 1064 | (interactive "p") | |
| 1065 | (forward-line p) | |
| 1066 | (or (eobp) | |
| 1067 | (forward-char archive-file-name-indent))) | |
| 1068 | ||
| 1069 | (defun archive-previous-line (p) | |
| 1070 | (interactive "p") | |
| 1071 | (archive-next-line (- p))) | |
| 1072 | ||
| 1073 | (defun archive-chmod-entry (new-mode) | |
| eeba65ed | 1074 | "Change the protection bits associated with all marked or this member. |
| 665211a3 KH |
1075 | The new protection bits can either be specified as an octal number or |
| 1076 | as a relative change like \"g+rw\" as for chmod(2)" | |
| 1077 | (interactive "sNew mode (octal or relative): ") | |
| 1078 | (if archive-read-only (error "Archive is read-only")) | |
| 1079 | (let ((func (archive-name "chmod-entry"))) | |
| 1080 | (if (fboundp func) | |
| 1081 | (progn | |
| 1082 | (funcall func new-mode (archive-get-marked ?* t)) | |
| 1083 | (archive-resummarize)) | |
| 1084 | (error "Setting mode bits is not supported for this archive type")))) | |
| 1085 | ||
| 1086 | (defun archive-chown-entry (new-uid) | |
| 1087 | "Change the owner of all marked or this member." | |
| 1088 | (interactive "nNew uid: ") | |
| 1089 | (if archive-read-only (error "Archive is read-only")) | |
| 1090 | (let ((func (archive-name "chown-entry"))) | |
| 1091 | (if (fboundp func) | |
| 1092 | (progn | |
| 1093 | (funcall func new-uid (archive-get-marked ?* t)) | |
| 1094 | (archive-resummarize)) | |
| 1095 | (error "Setting owner is not supported for this archive type")))) | |
| 1096 | ||
| 1097 | (defun archive-chgrp-entry (new-gid) | |
| 1098 | "Change the group of all marked or this member." | |
| 1099 | (interactive "nNew gid: ") | |
| 1100 | (if archive-read-only (error "Archive is read-only")) | |
| 1101 | (let ((func (archive-name "chgrp-entry"))) | |
| 1102 | (if (fboundp func) | |
| 1103 | (progn | |
| 1104 | (funcall func new-gid (archive-get-marked ?* t)) | |
| 1105 | (archive-resummarize)) | |
| 1106 | (error "Setting group is not supported for this archive type")))) | |
| 1107 | ||
| 1108 | (defun archive-expunge () | |
| 1109 | "Do the flagged deletions." | |
| 1110 | (interactive) | |
| 1111 | (let (files) | |
| 1112 | (save-excursion | |
| 1113 | (goto-char archive-file-list-start) | |
| 1114 | (while (< (point) archive-file-list-end) | |
| 1115 | (if (= (following-char) ?D) | |
| 1116 | (setq files (cons (aref (archive-get-descr) 0) files))) | |
| 1117 | (forward-line 1))) | |
| 1118 | (setq files (nreverse files)) | |
| 1119 | (and files | |
| 1120 | (or (not archive-read-only) | |
| 1121 | (error "Archive is read-only")) | |
| 1122 | (or (yes-or-no-p (format "Really delete %d member%s? " | |
| 1123 | (length files) | |
| 1124 | (if (null (cdr files)) "" "s"))) | |
| 1125 | (error "Operation aborted")) | |
| 1126 | (let ((archive (archive-maybe-copy (buffer-file-name))) | |
| 1127 | (expunger (archive-name "expunge"))) | |
| 1128 | (if (fboundp expunger) | |
| 1129 | (funcall expunger archive files) | |
| 1130 | (archive-*-expunge archive files (symbol-value expunger))) | |
| 1131 | (archive-maybe-update nil) | |
| 1132 | (if archive-remote | |
| 1133 | (archive-resummarize) | |
| 1134 | (revert-buffer)))))) | |
| 1135 | ||
| 1136 | (defun archive-*-expunge (archive files command) | |
| 1137 | (apply 'call-process | |
| 1138 | (car command) | |
| 1139 | nil | |
| 1140 | nil | |
| 1141 | nil | |
| 1142 | (append (cdr command) (cons archive files)))) | |
| 1143 | ||
| 1144 | (defun archive-rename-entry (newname) | |
| 1145 | "Change the name associated with this entry in the tar file." | |
| 1146 | (interactive "sNew name: ") | |
| 1147 | (if archive-read-only (error "Archive is read-only")) | |
| 1148 | (if (string= newname "") | |
| 1149 | (error "Archive members may not be given empty names")) | |
| 1150 | (let ((func (archive-name "rename-entry")) | |
| 1151 | (descr (archive-get-descr))) | |
| 1152 | (if (fboundp func) | |
| 1153 | (progn | |
| 1154 | (funcall func (buffer-file-name) newname descr) | |
| 1155 | (archive-resummarize)) | |
| 1156 | (error "Renaming is not supported for this archive type")))) | |
| 1157 | ||
| 1158 | ;; Revert the buffer and recompute the dired-like listing. | |
| 1159 | (defun archive-mode-revert (&optional no-autosave no-confirm) | |
| 1160 | (let ((no (archive-get-lineno))) | |
| 1161 | (setq archive-files nil) | |
| 1162 | (let ((revert-buffer-function nil)) | |
| 1163 | (revert-buffer t t)) | |
| 1164 | (archive-mode) | |
| 1165 | (goto-char archive-file-list-start) | |
| 1166 | (archive-next-line no))) | |
| 1167 | ||
| 1168 | (defun archive-undo () | |
| 1169 | "Undo in an archive buffer. | |
| 1170 | This doesn't recover lost files, it just undoes changes in the buffer itself." | |
| 1171 | (interactive) | |
| 1172 | (let (buffer-read-only) | |
| 1173 | (undo))) | |
| 1174 | ;; ------------------------------------------------------------------------- | |
| 1175 | ;; Section: Arc Archives | |
| 1176 | ||
| 1177 | (defun archive-arc-summarize () | |
| 1178 | (let ((p 1) | |
| 1179 | (totalsize 0) | |
| 1180 | (maxlen 8) | |
| 1181 | files | |
| 1182 | visual) | |
| 1183 | (while (and (< (+ p 29) (point-max)) | |
| 1184 | (= (char-after p) ?\C-z) | |
| 1185 | (> (char-after (1+ p)) 0)) | |
| 1186 | (let* ((namefld (buffer-substring (+ p 2) (+ p 2 13))) | |
| 1187 | (fnlen (or (string-match "\0" namefld) 13)) | |
| 1188 | (efnname (substring namefld 0 fnlen)) | |
| 1189 | (csize (archive-l-e (+ p 15) 4)) | |
| 1190 | (moddate (archive-l-e (+ p 19) 2)) | |
| 1191 | (modtime (archive-l-e (+ p 21) 2)) | |
| 1192 | (ucsize (archive-l-e (+ p 25) 4)) | |
| 1193 | (fiddle (string= efnname (upcase efnname))) | |
| 1194 | (ifnname (if fiddle (downcase efnname) efnname)) | |
| 1195 | (text (format " %8d %-11s %-8s %s" | |
| 1196 | ucsize | |
| 1197 | (archive-dosdate moddate) | |
| 1198 | (archive-dostime modtime) | |
| 1199 | ifnname))) | |
| 1200 | (setq maxlen (max maxlen fnlen) | |
| 1201 | totalsize (+ totalsize ucsize) | |
| 1202 | visual (cons (vector text | |
| 1203 | (- (length text) (length ifnname)) | |
| 1204 | (length text)) | |
| 1205 | visual) | |
| 1206 | files (cons (vector efnname ifnname fiddle nil (1- p)) | |
| 1207 | files) | |
| 1208 | p (+ p 29 csize)))) | |
| 1209 | (goto-char (point-min)) | |
| 1210 | (let ((dash (concat "- -------- ----------- -------- " | |
| 1211 | (make-string maxlen ?-) | |
| 1212 | "\n"))) | |
| 1213 | (insert "M Length Date Time File\n" | |
| 1214 | dash) | |
| 1215 | (archive-summarize-files (nreverse visual)) | |
| 1216 | (insert dash | |
| 1217 | (format " %8d %d file%s" | |
| 1218 | totalsize | |
| 1219 | (length files) | |
| 1220 | (if (= 1 (length files)) "" "s")) | |
| 1221 | "\n")) | |
| 1222 | (apply 'vector (nreverse files)))) | |
| 1223 | ||
| 1224 | (defun archive-arc-rename-entry (archive newname descr) | |
| 1225 | (if (string-match "[:\\\\/]" newname) | |
| 1226 | (error "File names in arc files may not contain a path")) | |
| 1227 | (if (> (length newname) 12) | |
| 1228 | (error "File names in arc files are limited to 12 characters")) | |
| 1229 | (let ((name (concat newname (substring "\0\0\0\0\0\0\0\0\0\0\0\0\0" | |
| 1230 | (length newname)))) | |
| 1231 | buffer-read-only) | |
| 1232 | (save-restriction | |
| 1233 | (save-excursion | |
| 1234 | (widen) | |
| 1235 | (goto-char (+ archive-proper-file-start (aref descr 4) 2)) | |
| 1236 | (delete-char 13) | |
| 1237 | (insert name))))) | |
| 1238 | ;; ------------------------------------------------------------------------- | |
| 1239 | ;; Section: Lzh Archives | |
| 1240 | ||
| 1241 | (defun archive-lzh-summarize () | |
| 1242 | (let ((p 1) | |
| 1243 | (totalsize 0) | |
| 1244 | (maxlen 8) | |
| 1245 | files | |
| 1246 | visual) | |
| a56636ae RS |
1247 | (while (progn (goto-char p) |
| 1248 | (looking-at "\\(.\\|\n\\)\\(.\\|\n\\)-l[hz][0-9ds]-")) | |
| 665211a3 KH |
1249 | (let* ((hsize (char-after p)) |
| 1250 | (csize (archive-l-e (+ p 7) 4)) | |
| 1251 | (ucsize (archive-l-e (+ p 11) 4)) | |
| 1252 | (modtime (archive-l-e (+ p 15) 2)) | |
| 1253 | (moddate (archive-l-e (+ p 17) 2)) | |
| a56636ae | 1254 | (hdrlvl (char-after (+ p 20))) |
| 665211a3 KH |
1255 | (fnlen (char-after (+ p 21))) |
| 1256 | (efnname (buffer-substring (+ p 22) (+ p 22 fnlen))) | |
| 1257 | (fiddle (string= efnname (upcase efnname))) | |
| 1258 | (ifnname (if fiddle (downcase efnname) efnname)) | |
| 1259 | (p2 (+ p 22 fnlen)) | |
| 1260 | (creator (if (>= (- hsize fnlen) 24) (char-after (+ p2 2)) 0)) | |
| a56636ae RS |
1261 | mode modestr uid gid text path prname |
| 1262 | ) | |
| 1263 | (if (= hdrlvl 0) | |
| 1264 | (setq mode (if (= creator ?U) (archive-l-e (+ p2 8) 2) ?\666) | |
| 1265 | uid (if (= creator ?U) (archive-l-e (+ p2 10) 2)) | |
| 1266 | gid (if (= creator ?U) (archive-l-e (+ p2 12) 2))) | |
| 1267 | (if (= creator ?U) | |
| 1268 | (let* ((p3 (+ p2 3)) | |
| 1269 | (hsize (archive-l-e p3 2)) | |
| 1270 | (etype (char-after (+ p3 2)))) | |
| 1271 | (while (not (= hsize 0)) | |
| 1272 | (cond | |
| 1273 | ((= etype 2) (let ((i (+ p3 3))) | |
| 1274 | (while (< i (+ p3 hsize)) | |
| 1275 | (setq path (concat path | |
| 1276 | (if (= (char-after i) | |
| 1277 | 255) | |
| 1278 | "/" | |
| 1279 | (char-to-string | |
| 1280 | (char-after i))))) | |
| 1281 | (setq i (1+ i))))) | |
| 1282 | ((= etype 80) (setq mode (archive-l-e (+ p3 3) 2))) | |
| 1283 | ((= etype 81) (progn (setq uid (archive-l-e (+ p3 3) 2)) | |
| 1284 | (setq gid (archive-l-e (+ p3 5) 2)))) | |
| 1285 | ) | |
| 1286 | (setq p3 (+ p3 hsize)) | |
| 1287 | (setq hsize (archive-l-e p3 2)) | |
| 1288 | (setq etype (char-after (+ p3 2))))))) | |
| 1289 | (setq prname (if path (concat path ifnname) ifnname)) | |
| 1290 | (setq modestr (if mode (archive-int-to-mode mode) "??????????")) | |
| 1291 | (setq text (if archive-alternate-display | |
| 665211a3 KH |
1292 | (format " %8d %5S %5S %s" |
| 1293 | ucsize | |
| 1294 | (or uid "?") | |
| 1295 | (or gid "?") | |
| 1296 | ifnname) | |
| 1297 | (format " %10s %8d %-11s %-8s %s" | |
| 1298 | modestr | |
| 1299 | ucsize | |
| 1300 | (archive-dosdate moddate) | |
| 1301 | (archive-dostime modtime) | |
| a56636ae | 1302 | ifnname))) |
| 665211a3 KH |
1303 | (setq maxlen (max maxlen fnlen) |
| 1304 | totalsize (+ totalsize ucsize) | |
| 1305 | visual (cons (vector text | |
| 1306 | (- (length text) (length ifnname)) | |
| 1307 | (length text)) | |
| 1308 | visual) | |
| a56636ae | 1309 | files (cons (vector prname ifnname fiddle mode (1- p)) |
| 665211a3 KH |
1310 | files) |
| 1311 | p (+ p hsize 2 csize)))) | |
| 1312 | (goto-char (point-min)) | |
| 1313 | (let ((dash (concat (if archive-alternate-display | |
| 1314 | "- -------- ----- ----- " | |
| 1315 | "- ---------- -------- ----------- -------- ") | |
| 1316 | (make-string maxlen ?-) | |
| 1317 | "\n")) | |
| 1318 | (header (if archive-alternate-display | |
| 1319 | "M Length Uid Gid File\n" | |
| 1320 | "M Filemode Length Date Time File\n")) | |
| 1321 | (sumline (if archive-alternate-display | |
| 1322 | " %8d %d file%s" | |
| 1323 | " %8d %d file%s"))) | |
| 1324 | (insert header dash) | |
| 1325 | (archive-summarize-files (nreverse visual)) | |
| 1326 | (insert dash | |
| 1327 | (format sumline | |
| 1328 | totalsize | |
| 1329 | (length files) | |
| 1330 | (if (= 1 (length files)) "" "s")) | |
| 1331 | "\n")) | |
| 1332 | (apply 'vector (nreverse files)))) | |
| 1333 | ||
| 1334 | (defconst archive-lzh-alternate-display t) | |
| 1335 | ||
| 1336 | (defun archive-lzh-extract (archive name) | |
| 1337 | (archive-extract-by-stdout archive name archive-lzh-extract)) | |
| 1338 | ||
| 1339 | (defun archive-lzh-resum (p count) | |
| 1340 | (let ((sum 0)) | |
| 1341 | (while (> count 0) | |
| 1342 | (setq count (1- count) | |
| 1343 | sum (+ sum (char-after p)) | |
| 1344 | p (1+ p))) | |
| 1345 | (logand sum 255))) | |
| 1346 | ||
| 1347 | (defun archive-lzh-rename-entry (archive newname descr) | |
| 1348 | (save-restriction | |
| 1349 | (save-excursion | |
| 1350 | (widen) | |
| 1351 | (let* ((p (+ archive-proper-file-start (aref descr 4))) | |
| 1352 | (oldhsize (char-after p)) | |
| 1353 | (oldfnlen (char-after (+ p 21))) | |
| 1354 | (newfnlen (length newname)) | |
| 1355 | (newhsize (+ oldhsize newfnlen (- oldfnlen))) | |
| 1356 | buffer-read-only) | |
| 1357 | (if (> newhsize 255) | |
| 1358 | (error "The file name is too long")) | |
| 1359 | (goto-char (+ p 21)) | |
| 1360 | (delete-char (1+ oldfnlen)) | |
| 1361 | (insert newfnlen newname) | |
| 1362 | (goto-char p) | |
| 1363 | (delete-char 2) | |
| 1364 | (insert newhsize (archive-lzh-resum p newhsize)))))) | |
| 1365 | ||
| 1366 | (defun archive-lzh-ogm (newval files errtxt ofs) | |
| 1367 | (save-restriction | |
| 1368 | (save-excursion | |
| 1369 | (widen) | |
| 1370 | (while files | |
| 1371 | (let* ((fil (car files)) | |
| 1372 | (p (+ archive-proper-file-start (aref fil 4))) | |
| 1373 | (hsize (char-after p)) | |
| 1374 | (fnlen (char-after (+ p 21))) | |
| 1375 | (p2 (+ p 22 fnlen)) | |
| 1376 | (creator (if (>= (- hsize fnlen) 24) (char-after (+ p2 2)) 0)) | |
| 1377 | buffer-read-only) | |
| 1378 | (if (= creator ?U) | |
| 1379 | (progn | |
| 1380 | (or (numberp newval) | |
| 1381 | (setq newval (funcall newval (archive-l-e (+ p2 ofs) 2)))) | |
| 1382 | (goto-char (+ p2 ofs)) | |
| 1383 | (delete-char 2) | |
| 1384 | (insert (logand newval 255) (lsh newval -8)) | |
| 1385 | (goto-char (1+ p)) | |
| 1386 | (delete-char 1) | |
| 1387 | (insert (archive-lzh-resum (1+ p) hsize))) | |
| 1388 | (message "Member %s does not have %s field" | |
| 1389 | (aref fil 1) errtxt))) | |
| 1390 | (setq files (cdr files)))))) | |
| 1391 | ||
| 1392 | (defun archive-lzh-chown-entry (newuid files) | |
| 1393 | (archive-lzh-ogm newuid files "an uid" 10)) | |
| 1394 | ||
| 1395 | (defun archive-lzh-chgrp-entry (newgid files) | |
| 1396 | (archive-lzh-ogm newgid files "a gid" 12)) | |
| 1397 | ||
| 1398 | (defun archive-lzh-chmod-entry (newmode files) | |
| 1399 | (archive-lzh-ogm | |
| 1400 | ;; This should work even though newmode will be dynamically accessed. | |
| 43f657ea | 1401 | (function (lambda (old) (archive-calc-mode old newmode t))) |
| 665211a3 KH |
1402 | files "a unix-style mode" 8)) |
| 1403 | ;; ------------------------------------------------------------------------- | |
| 1404 | ;; Section: Zip Archives | |
| 1405 | ||
| 1406 | (defun archive-zip-summarize () | |
| 1407 | (goto-char (- (point-max) (- 22 18))) | |
| 1408 | (search-backward-regexp "[P]K\005\006") | |
| 1409 | (let ((p (1+ (archive-l-e (+ (point) 16) 4))) | |
| 1410 | (maxlen 8) | |
| 1411 | (totalsize 0) | |
| 1412 | files | |
| 1413 | visual) | |
| 1414 | (while (string= "PK\001\002" (buffer-substring p (+ p 4))) | |
| 1415 | (let* ((creator (char-after (+ p 5))) | |
| 1416 | (method (archive-l-e (+ p 10) 2)) | |
| 1417 | (modtime (archive-l-e (+ p 12) 2)) | |
| 1418 | (moddate (archive-l-e (+ p 14) 2)) | |
| 1419 | (ucsize (archive-l-e (+ p 24) 4)) | |
| 1420 | (fnlen (archive-l-e (+ p 28) 2)) | |
| 1421 | (exlen (archive-l-e (+ p 30) 2)) | |
| 845720b9 | 1422 | (fclen (archive-l-e (+ p 32) 2)) |
| 665211a3 KH |
1423 | (lheader (archive-l-e (+ p 42) 4)) |
| 1424 | (efnname (buffer-substring (+ p 46) (+ p 46 fnlen))) | |
| 1425 | (isdir (and (= ucsize 0) | |
| 1426 | (string= (file-name-nondirectory efnname) ""))) | |
| 1427 | (mode (cond ((memq creator '(2 3)) ; Unix + VMS | |
| 1428 | (archive-l-e (+ p 40) 2)) | |
| 1429 | ((memq creator '(0 5 6 7 10 11)) ; Dos etc. | |
| 1430 | (logior ?\444 | |
| 1431 | (if isdir (logior 16384 ?\111) 0) | |
| 1432 | (if (zerop | |
| 1433 | (logand 1 (char-after (+ p 38)))) | |
| 1434 | ?\222 0))) | |
| 1435 | (t nil))) | |
| 1436 | (modestr (if mode (archive-int-to-mode mode) "??????????")) | |
| 1437 | (fiddle (and archive-zip-case-fiddle | |
| 1438 | (not (not (memq creator '(0 2 4 5 9)))))) | |
| 1439 | (ifnname (if fiddle (downcase efnname) efnname)) | |
| 1440 | (text (format " %10s %8d %-11s %-8s %s" | |
| 1441 | modestr | |
| 1442 | ucsize | |
| 1443 | (archive-dosdate moddate) | |
| 1444 | (archive-dostime modtime) | |
| 1445 | ifnname))) | |
| 1446 | (setq maxlen (max maxlen fnlen) | |
| 1447 | totalsize (+ totalsize ucsize) | |
| 1448 | visual (cons (vector text | |
| 1449 | (- (length text) (length ifnname)) | |
| 1450 | (length text)) | |
| 1451 | visual) | |
| 1452 | files (cons (if isdir | |
| 1453 | nil | |
| 1454 | (vector efnname ifnname fiddle mode | |
| 1455 | (list (1- p) lheader))) | |
| 1456 | files) | |
| 845720b9 | 1457 | p (+ p 46 fnlen exlen fclen)))) |
| 665211a3 KH |
1458 | (goto-char (point-min)) |
| 1459 | (let ((dash (concat "- ---------- -------- ----------- -------- " | |
| 1460 | (make-string maxlen ?-) | |
| 1461 | "\n"))) | |
| 1462 | (insert "M Filemode Length Date Time File\n" | |
| 1463 | dash) | |
| 1464 | (archive-summarize-files (nreverse visual)) | |
| 1465 | (insert dash | |
| 1466 | (format " %8d %d file%s" | |
| 1467 | totalsize | |
| 1468 | (length files) | |
| 1469 | (if (= 1 (length files)) "" "s")) | |
| 1470 | "\n")) | |
| 1471 | (apply 'vector (nreverse files)))) | |
| 1472 | ||
| 1473 | (defun archive-zip-extract (archive name) | |
| 1474 | (if archive-zip-use-pkzip | |
| 1475 | (archive-*-extract archive name archive-zip-extract) | |
| 1476 | (archive-extract-by-stdout archive name archive-zip-extract))) | |
| 1477 | ||
| 1478 | (defun archive-zip-write-file-member (archive descr) | |
| 1479 | (archive-*-write-file-member | |
| 1480 | archive | |
| 1481 | descr | |
| 1482 | (if (aref descr 2) archive-zip-update-case archive-zip-update))) | |
| 1483 | ||
| 1484 | (defun archive-zip-chmod-entry (newmode files) | |
| 1485 | (save-restriction | |
| 1486 | (save-excursion | |
| 1487 | (widen) | |
| 1488 | (while files | |
| 1489 | (let* ((fil (car files)) | |
| 1490 | (p (+ archive-proper-file-start (car (aref fil 4)))) | |
| 1491 | (creator (char-after (+ p 5))) | |
| 1492 | (oldmode (aref fil 3)) | |
| 1493 | (newval (archive-calc-mode oldmode newmode t)) | |
| 1494 | buffer-read-only) | |
| 1495 | (cond ((memq creator '(2 3)) ; Unix + VMS | |
| 1496 | (goto-char (+ p 40)) | |
| 1497 | (delete-char 2) | |
| 1498 | (insert (logand newval 255) (lsh newval -8))) | |
| 1499 | ((memq creator '(0 5 6 7 10 11)) ; Dos etc. | |
| 1500 | (goto-char (+ p 38)) | |
| 1501 | (insert (logior (logand (char-after (point)) 254) | |
| 1502 | (logand (logxor 1 (lsh newval -7)) 1))) | |
| 1503 | (delete-char 1)) | |
| 1504 | (t (message "Don't know how to change mode for this member")))) | |
| 1505 | (setq files (cdr files)))))) | |
| 1506 | ;; ------------------------------------------------------------------------- | |
| 1507 | ;; Section: Zoo Archives | |
| 1508 | ||
| 1509 | (defun archive-zoo-summarize () | |
| 1510 | (let ((p (1+ (archive-l-e 25 4))) | |
| 1511 | (maxlen 8) | |
| 1512 | (totalsize 0) | |
| 1513 | files | |
| 1514 | visual) | |
| 1515 | (while (and (string= "\334\247\304\375" (buffer-substring p (+ p 4))) | |
| 1516 | (> (archive-l-e (+ p 6) 4) 0)) | |
| 1517 | (let* ((next (1+ (archive-l-e (+ p 6) 4))) | |
| 1518 | (moddate (archive-l-e (+ p 14) 2)) | |
| 1519 | (modtime (archive-l-e (+ p 16) 2)) | |
| 1520 | (ucsize (archive-l-e (+ p 20) 4)) | |
| 1521 | (namefld (buffer-substring (+ p 38) (+ p 38 13))) | |
| 83c4abcb RS |
1522 | (dirtype (char-after (+ p 4))) |
| 1523 | (lfnlen (if (= dirtype 2) (char-after (+ p 56)) 0)) | |
| 1524 | (ldirlen (if (= dirtype 2) (char-after (+ p 57)) 0)) | |
| 9913653a | 1525 | (fnlen (or (string-match "\0" namefld) 13)) |
| 83c4abcb RS |
1526 | (efnname (concat |
| 1527 | (if (> ldirlen 0) | |
| 1528 | (concat (buffer-substring | |
| 1529 | (+ p 58 lfnlen) (+ p 58 lfnlen ldirlen -1)) | |
| 1530 | "/") | |
| 1531 | "") | |
| 1532 | (if (> lfnlen 0) | |
| 1533 | (buffer-substring (+ p 58) (+ p 58 lfnlen -1)) | |
| 1534 | (substring namefld 0 fnlen)))) | |
| 1535 | (fiddle (and (= lfnlen 0) (string= efnname (upcase efnname)))) | |
| 665211a3 KH |
1536 | (ifnname (if fiddle (downcase efnname) efnname)) |
| 1537 | (text (format " %8d %-11s %-8s %s" | |
| 1538 | ucsize | |
| 1539 | (archive-dosdate moddate) | |
| 1540 | (archive-dostime modtime) | |
| 1541 | ifnname))) | |
| 9913653a | 1542 | (setq maxlen (max maxlen (length ifnname)) |
| 665211a3 KH |
1543 | totalsize (+ totalsize ucsize) |
| 1544 | visual (cons (vector text | |
| 1545 | (- (length text) (length ifnname)) | |
| 1546 | (length text)) | |
| 1547 | visual) | |
| 1548 | files (cons (vector efnname ifnname fiddle nil (1- p)) | |
| 1549 | files) | |
| 1550 | p next))) | |
| 1551 | (goto-char (point-min)) | |
| 1552 | (let ((dash (concat "- -------- ----------- -------- " | |
| 1553 | (make-string maxlen ?-) | |
| 1554 | "\n"))) | |
| 1555 | (insert "M Length Date Time File\n" | |
| 1556 | dash) | |
| 1557 | (archive-summarize-files (nreverse visual)) | |
| 1558 | (insert dash | |
| 1559 | (format " %8d %d file%s" | |
| 1560 | totalsize | |
| 1561 | (length files) | |
| 1562 | (if (= 1 (length files)) "" "s")) | |
| 1563 | "\n")) | |
| 1564 | (apply 'vector (nreverse files)))) | |
| 1565 | ||
| 1566 | (defun archive-zoo-extract (archive name) | |
| 1567 | (archive-extract-by-stdout archive name archive-zoo-extract)) | |
| 1568 | ;; ------------------------------------------------------------------------- | |
| 1569 | (provide 'archive-mode) | |
| 1570 | ||
| 1571 | ;; arc-mode.el ends here. |