| 1 | ;;; arc-mode.el --- simple editing of archives |
| 2 | |
| 3 | ;; Copyright (C) 1995, 1997-1998, 2001-2014 Free Software Foundation, |
| 4 | ;; Inc. |
| 5 | |
| 6 | ;; Author: Morten Welinder <terra@gnu.org> |
| 7 | ;; Keywords: files archives msdog editing major-mode |
| 8 | ;; Favorite-brand-of-beer: None, I hate beer. |
| 9 | |
| 10 | ;; This file is part of GNU Emacs. |
| 11 | |
| 12 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
| 13 | ;; it under the terms of the GNU General Public License as published by |
| 14 | ;; the Free Software Foundation, either version 3 of the License, or |
| 15 | ;; (at your option) any later version. |
| 16 | |
| 17 | ;; GNU Emacs is distributed in the hope that it will be useful, |
| 18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | ;; GNU General Public License for more details. |
| 21 | |
| 22 | ;; You should have received a copy of the GNU General Public License |
| 23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| 24 | |
| 25 | ;;; Commentary: |
| 26 | |
| 27 | ;; NAMING: "arc" is short for "archive" and does not refer specifically |
| 28 | ;; to files whose name end in ".arc" |
| 29 | ;; |
| 30 | ;; This code does not decode any files internally, although it does |
| 31 | ;; understand the directory level of the archives. For this reason, |
| 32 | ;; you should expect this code to need more fiddling than tar-mode.el |
| 33 | ;; (although it at present has fewer bugs :-) In particular, I have |
| 34 | ;; not tested this under Ms-Dog myself. |
| 35 | ;; ------------------------------------- |
| 36 | ;; INTERACTION: arc-mode.el should play together with |
| 37 | ;; |
| 38 | ;; * ange-ftp.el: Remote archives (i.e., ones that ange-ftp has brought |
| 39 | ;; to you) are handled by doing all updates on a local |
| 40 | ;; copy. When you make changes to a remote file the |
| 41 | ;; changes will first take effect when the archive buffer |
| 42 | ;; is saved. You will be warned about this. |
| 43 | ;; |
| 44 | ;; * dos-fns.el: (Part of Emacs 19). You get automatic ^M^J <--> ^J |
| 45 | ;; conversion. |
| 46 | ;; |
| 47 | ;; arc-mode.el does not work well with crypt++.el; for the archives as |
| 48 | ;; such this could be fixed (but wouldn't be useful) by declaring such |
| 49 | ;; archives to be "remote". For the members this is a general Emacs |
| 50 | ;; problem that 19.29's file formats may fix. |
| 51 | ;; ------------------------------------- |
| 52 | ;; ARCHIVE TYPES: Currently only the archives below are handled, but the |
| 53 | ;; structure for handling just about anything is in place. |
| 54 | ;; |
| 55 | ;; Arc Lzh Zip Zoo Rar 7z |
| 56 | ;; -------------------------------------------- |
| 57 | ;; View listing Intern Intern Intern Intern Y Y |
| 58 | ;; Extract member Y Y Y Y Y Y |
| 59 | ;; Save changed member Y Y Y Y N Y |
| 60 | ;; Add new member N N N N N N |
| 61 | ;; Delete member Y Y Y Y N Y |
| 62 | ;; Rename member Y Y N N N N |
| 63 | ;; Chmod - Y Y - N N |
| 64 | ;; Chown - Y - - N N |
| 65 | ;; Chgrp - Y - - N N |
| 66 | ;; |
| 67 | ;; Special thanks to Bill Brodie <wbrodie@panix.com> for very useful tips |
| 68 | ;; on the first released version of this package. |
| 69 | ;; |
| 70 | ;; This code is partly based on tar-mode.el from Emacs. |
| 71 | ;; ------------------------------------- |
| 72 | ;; ARCHIVE STRUCTURES: |
| 73 | ;; (This is mostly for myself.) |
| 74 | ;; |
| 75 | ;; ARC A series of (header,file). No interactions among members. |
| 76 | ;; |
| 77 | ;; LZH A series of (header,file). Headers are checksummed. No |
| 78 | ;; interaction among members. |
| 79 | ;; Headers come in three flavors called level 0, 1 and 2 headers. |
| 80 | ;; Level 2 header is free of DOS specific restrictions and most |
| 81 | ;; commonly used. Also level 1 and 2 headers consist of base |
| 82 | ;; and extension headers. For more details see |
| 83 | ;; http://homepage1.nifty.com/dangan/en/Content/Program/Java/jLHA/Notes/Notes.html |
| 84 | ;; http://www.osirusoft.com/joejared/lzhformat.html |
| 85 | ;; |
| 86 | ;; ZIP A series of (lheader,fil) followed by a "central directory" |
| 87 | ;; which is a series of (cheader) followed by an end-of- |
| 88 | ;; central-dir record possibly followed by junk. The e-o-c-d |
| 89 | ;; links to c-d. cheaders link to lheaders which are basically |
| 90 | ;; cut-down versions of the cheaders. |
| 91 | ;; |
| 92 | ;; ZOO An archive header followed by a series of (header,file). |
| 93 | ;; Each member header points to the next. The archive is |
| 94 | ;; terminated by a bogus header with a zero next link. |
| 95 | ;; ------------------------------------- |
| 96 | ;; HOOKS: `foo' means one of the supported archive types. |
| 97 | ;; |
| 98 | ;; archive-mode-hook |
| 99 | ;; archive-foo-mode-hook |
| 100 | ;; archive-extract-hook |
| 101 | |
| 102 | ;;; Code: |
| 103 | |
| 104 | ;; ------------------------------------------------------------------------- |
| 105 | ;;; Section: Configuration. |
| 106 | |
| 107 | (defgroup archive nil |
| 108 | "Simple editing of archives." |
| 109 | :group 'data) |
| 110 | |
| 111 | (defgroup archive-arc nil |
| 112 | "ARC-specific options to archive." |
| 113 | :group 'archive) |
| 114 | |
| 115 | (defgroup archive-lzh nil |
| 116 | "LZH-specific options to archive." |
| 117 | :group 'archive) |
| 118 | |
| 119 | (defgroup archive-zip nil |
| 120 | "ZIP-specific options to archive." |
| 121 | :group 'archive) |
| 122 | |
| 123 | (defgroup archive-zoo nil |
| 124 | "ZOO-specific options to archive." |
| 125 | :group 'archive) |
| 126 | |
| 127 | (defcustom archive-tmpdir |
| 128 | ;; make-temp-name is safe here because we use this name |
| 129 | ;; to create a directory. |
| 130 | (make-temp-name |
| 131 | (expand-file-name (if (eq system-type 'ms-dos) "ar" "archive.tmp") |
| 132 | temporary-file-directory)) |
| 133 | "Directory for temporary files made by `arc-mode.el'." |
| 134 | :type 'directory |
| 135 | :group 'archive) |
| 136 | |
| 137 | (defcustom archive-remote-regexp "^/[^/:]*[^/:.]:" |
| 138 | "Regexp recognizing archive files names that are not local. |
| 139 | A non-local file is one whose file name is not proper outside Emacs. |
| 140 | A local copy of the archive will be used when updating." |
| 141 | :type 'regexp |
| 142 | :group 'archive) |
| 143 | |
| 144 | (define-obsolete-variable-alias 'archive-extract-hooks |
| 145 | 'archive-extract-hook "24.3") |
| 146 | (defcustom archive-extract-hook nil |
| 147 | "Hook run when an archive member has been extracted." |
| 148 | :type 'hook |
| 149 | :group 'archive) |
| 150 | ;; ------------------------------ |
| 151 | ;; Arc archive configuration |
| 152 | |
| 153 | ;; We always go via a local file since there seems to be no reliable way |
| 154 | ;; to extract to stdout without junk getting added. |
| 155 | (defcustom archive-arc-extract |
| 156 | '("arc" "x") |
| 157 | "Program and its options to run in order to extract an arc file member. |
| 158 | Extraction should happen to the current directory. Archive and member |
| 159 | name will be added." |
| 160 | :type '(list (string :tag "Program") |
| 161 | (repeat :tag "Options" |
| 162 | :inline t |
| 163 | (string :format "%v"))) |
| 164 | :group 'archive-arc) |
| 165 | |
| 166 | (defcustom archive-arc-expunge |
| 167 | '("arc" "d") |
| 168 | "Program and its options to run in order to delete arc file members. |
| 169 | Archive and member names will be added." |
| 170 | :type '(list (string :tag "Program") |
| 171 | (repeat :tag "Options" |
| 172 | :inline t |
| 173 | (string :format "%v"))) |
| 174 | :group 'archive-arc) |
| 175 | |
| 176 | (defcustom archive-arc-write-file-member |
| 177 | '("arc" "u") |
| 178 | "Program and its options to run in order to update an arc file member. |
| 179 | Archive and member name will be added." |
| 180 | :type '(list (string :tag "Program") |
| 181 | (repeat :tag "Options" |
| 182 | :inline t |
| 183 | (string :format "%v"))) |
| 184 | :group 'archive-arc) |
| 185 | ;; ------------------------------ |
| 186 | ;; Lzh archive configuration |
| 187 | |
| 188 | (defcustom archive-lzh-extract |
| 189 | '("lha" "pq") |
| 190 | "Program and its options to run in order to extract an lzh file member. |
| 191 | Extraction should happen to standard output. Archive and member name will |
| 192 | be added." |
| 193 | :type '(list (string :tag "Program") |
| 194 | (repeat :tag "Options" |
| 195 | :inline t |
| 196 | (string :format "%v"))) |
| 197 | :group 'archive-lzh) |
| 198 | |
| 199 | (defcustom archive-lzh-expunge |
| 200 | '("lha" "d") |
| 201 | "Program and its options to run in order to delete lzh file members. |
| 202 | Archive and member names will be added." |
| 203 | :type '(list (string :tag "Program") |
| 204 | (repeat :tag "Options" |
| 205 | :inline t |
| 206 | (string :format "%v"))) |
| 207 | :group 'archive-lzh) |
| 208 | |
| 209 | (defcustom archive-lzh-write-file-member |
| 210 | '("lha" "a") |
| 211 | "Program and its options to run in order to update an lzh file member. |
| 212 | Archive and member name will be added." |
| 213 | :type '(list (string :tag "Program") |
| 214 | (repeat :tag "Options" |
| 215 | :inline t |
| 216 | (string :format "%v"))) |
| 217 | :group 'archive-lzh) |
| 218 | ;; ------------------------------ |
| 219 | ;; Zip archive configuration |
| 220 | |
| 221 | (defvar archive-7z-program (let ((7z (or (executable-find "7z") |
| 222 | (executable-find "7za")))) |
| 223 | (when 7z |
| 224 | (file-name-nondirectory 7z)))) |
| 225 | |
| 226 | (defcustom archive-zip-extract |
| 227 | (cond ((executable-find "unzip") '("unzip" "-qq" "-c")) |
| 228 | (archive-7z-program `(,archive-7z-program "x" "-so")) |
| 229 | ((executable-find "pkunzip") '("pkunzip" "-e" "-o-")) |
| 230 | (t '("unzip" "-qq" "-c"))) |
| 231 | "Program and its options to run in order to extract a zip file member. |
| 232 | Extraction should happen to standard output. Archive and member name will |
| 233 | be added." |
| 234 | :type '(list (string :tag "Program") |
| 235 | (repeat :tag "Options" |
| 236 | :inline t |
| 237 | (string :format "%v"))) |
| 238 | :group 'archive-zip) |
| 239 | |
| 240 | ;; For several reasons the latter behavior is not desirable in general. |
| 241 | ;; (1) It uses more disk space. (2) Error checking is worse or non- |
| 242 | ;; existent. (3) It tends to do funny things with other systems' file |
| 243 | ;; names. |
| 244 | |
| 245 | (defcustom archive-zip-expunge |
| 246 | (cond ((executable-find "zip") '("zip" "-d" "-q")) |
| 247 | (archive-7z-program `(,archive-7z-program "d")) |
| 248 | ((executable-find "pkzip") '("pkzip" "-d")) |
| 249 | (t '("zip" "-d" "-q"))) |
| 250 | "Program and its options to run in order to delete zip file members. |
| 251 | Archive and member names will be added." |
| 252 | :type '(list (string :tag "Program") |
| 253 | (repeat :tag "Options" |
| 254 | :inline t |
| 255 | (string :format "%v"))) |
| 256 | :group 'archive-zip) |
| 257 | |
| 258 | (defcustom archive-zip-update |
| 259 | (cond ((executable-find "zip") '("zip" "-q")) |
| 260 | (archive-7z-program `(,archive-7z-program "u")) |
| 261 | ((executable-find "pkzip") '("pkzip" "-u" "-P")) |
| 262 | (t '("zip" "-q"))) |
| 263 | "Program and its options to run in order to update a zip file member. |
| 264 | Options should ensure that specified directory will be put into the zip |
| 265 | file. Archive and member name will be added." |
| 266 | :type '(list (string :tag "Program") |
| 267 | (repeat :tag "Options" |
| 268 | :inline t |
| 269 | (string :format "%v"))) |
| 270 | :group 'archive-zip) |
| 271 | |
| 272 | (defcustom archive-zip-update-case |
| 273 | (cond ((executable-find "zip") '("zip" "-q" "-k")) |
| 274 | (archive-7z-program `(,archive-7z-program "u")) |
| 275 | ((executable-find "pkzip") '("pkzip" "-u" "-P")) |
| 276 | (t '("zip" "-q" "-k"))) |
| 277 | "Program and its options to run in order to update a case fiddled zip member. |
| 278 | Options should ensure that specified directory will be put into the zip file. |
| 279 | Archive and member name will be added." |
| 280 | :type '(list (string :tag "Program") |
| 281 | (repeat :tag "Options" |
| 282 | :inline t |
| 283 | (string :format "%v"))) |
| 284 | :group 'archive-zip) |
| 285 | |
| 286 | (defcustom archive-zip-case-fiddle t |
| 287 | "If non-nil then zip file members may be down-cased. |
| 288 | This case fiddling will only happen for members created by a system |
| 289 | that uses caseless file names." |
| 290 | :type 'boolean |
| 291 | :group 'archive-zip) |
| 292 | ;; ------------------------------ |
| 293 | ;; Zoo archive configuration |
| 294 | |
| 295 | (defcustom archive-zoo-extract |
| 296 | '("zoo" "xpq") |
| 297 | "Program and its options to run in order to extract a zoo file member. |
| 298 | Extraction should happen to standard output. Archive and member name will |
| 299 | be added." |
| 300 | :type '(list (string :tag "Program") |
| 301 | (repeat :tag "Options" |
| 302 | :inline t |
| 303 | (string :format "%v"))) |
| 304 | :group 'archive-zoo) |
| 305 | |
| 306 | (defcustom archive-zoo-expunge |
| 307 | '("zoo" "DqPP") |
| 308 | "Program and its options to run in order to delete zoo file members. |
| 309 | Archive and member names will be added." |
| 310 | :type '(list (string :tag "Program") |
| 311 | (repeat :tag "Options" |
| 312 | :inline t |
| 313 | (string :format "%v"))) |
| 314 | :group 'archive-zoo) |
| 315 | |
| 316 | (defcustom archive-zoo-write-file-member |
| 317 | '("zoo" "a") |
| 318 | "Program and its options to run in order to update a zoo file member. |
| 319 | Archive and member name will be added." |
| 320 | :type '(list (string :tag "Program") |
| 321 | (repeat :tag "Options" |
| 322 | :inline t |
| 323 | (string :format "%v"))) |
| 324 | :group 'archive-zoo) |
| 325 | ;; ------------------------------ |
| 326 | ;; 7z archive configuration |
| 327 | |
| 328 | (defcustom archive-7z-extract |
| 329 | `(,(or archive-7z-program "7z") "x" "-so") |
| 330 | "Program and its options to run in order to extract a 7z file member. |
| 331 | Extraction should happen to standard output. Archive and member name will |
| 332 | be added." |
| 333 | :version "24.1" |
| 334 | :type '(list (string :tag "Program") |
| 335 | (repeat :tag "Options" |
| 336 | :inline t |
| 337 | (string :format "%v"))) |
| 338 | :group 'archive-7z) |
| 339 | |
| 340 | (defcustom archive-7z-expunge |
| 341 | `(,(or archive-7z-program "7z") "d") |
| 342 | "Program and its options to run in order to delete 7z file members. |
| 343 | Archive and member names will be added." |
| 344 | :version "24.1" |
| 345 | :type '(list (string :tag "Program") |
| 346 | (repeat :tag "Options" |
| 347 | :inline t |
| 348 | (string :format "%v"))) |
| 349 | :group 'archive-7z) |
| 350 | |
| 351 | (defcustom archive-7z-update |
| 352 | `(,(or archive-7z-program "7z") "u") |
| 353 | "Program and its options to run in order to update a 7z file member. |
| 354 | Options should ensure that specified directory will be put into the 7z |
| 355 | file. Archive and member name will be added." |
| 356 | :version "24.1" |
| 357 | :type '(list (string :tag "Program") |
| 358 | (repeat :tag "Options" |
| 359 | :inline t |
| 360 | (string :format "%v"))) |
| 361 | :group 'archive-7z) |
| 362 | |
| 363 | ;; ------------------------------------------------------------------------- |
| 364 | ;;; Section: Variables |
| 365 | |
| 366 | (defvar archive-subtype nil "Symbol describing archive type.") |
| 367 | (defvar archive-file-list-start nil "Position of first contents line.") |
| 368 | (defvar archive-file-list-end nil "Position just after last contents line.") |
| 369 | (defvar archive-proper-file-start nil "Position of real archive's start.") |
| 370 | (defvar archive-read-only nil "Non-nil if the archive is read-only on disk.") |
| 371 | (defvar archive-local-name nil "Name of local copy of remote archive.") |
| 372 | (defvar archive-mode-map |
| 373 | (let ((map (make-keymap))) |
| 374 | (set-keymap-parent map special-mode-map) |
| 375 | (define-key map " " 'archive-next-line) |
| 376 | (define-key map "a" 'archive-alternate-display) |
| 377 | ;;(define-key map "c" 'archive-copy) |
| 378 | (define-key map "d" 'archive-flag-deleted) |
| 379 | (define-key map "\C-d" 'archive-flag-deleted) |
| 380 | (define-key map "e" 'archive-extract) |
| 381 | (define-key map "f" 'archive-extract) |
| 382 | (define-key map "\C-m" 'archive-extract) |
| 383 | (define-key map "m" 'archive-mark) |
| 384 | (define-key map "n" 'archive-next-line) |
| 385 | (define-key map "\C-n" 'archive-next-line) |
| 386 | (define-key map [down] 'archive-next-line) |
| 387 | (define-key map "o" 'archive-extract-other-window) |
| 388 | (define-key map "p" 'archive-previous-line) |
| 389 | (define-key map "\C-p" 'archive-previous-line) |
| 390 | (define-key map [up] 'archive-previous-line) |
| 391 | (define-key map "r" 'archive-rename-entry) |
| 392 | (define-key map "u" 'archive-unflag) |
| 393 | (define-key map "\M-\C-?" 'archive-unmark-all-files) |
| 394 | (define-key map "v" 'archive-view) |
| 395 | (define-key map "x" 'archive-expunge) |
| 396 | (define-key map "\177" 'archive-unflag-backwards) |
| 397 | (define-key map "E" 'archive-extract-other-window) |
| 398 | (define-key map "M" 'archive-chmod-entry) |
| 399 | (define-key map "G" 'archive-chgrp-entry) |
| 400 | (define-key map "O" 'archive-chown-entry) |
| 401 | ;; Let mouse-1 follow the link. |
| 402 | (define-key map [follow-link] 'mouse-face) |
| 403 | |
| 404 | (if (fboundp 'command-remapping) |
| 405 | (progn |
| 406 | (define-key map [remap advertised-undo] 'archive-undo) |
| 407 | (define-key map [remap undo] 'archive-undo)) |
| 408 | (substitute-key-definition 'advertised-undo 'archive-undo map global-map) |
| 409 | (substitute-key-definition 'undo 'archive-undo map global-map)) |
| 410 | |
| 411 | (define-key map |
| 412 | (if (featurep 'xemacs) 'button2 [mouse-2]) 'archive-extract) |
| 413 | |
| 414 | (if (featurep 'xemacs) |
| 415 | () ; out of luck |
| 416 | |
| 417 | (define-key map [menu-bar immediate] |
| 418 | (cons "Immediate" (make-sparse-keymap "Immediate"))) |
| 419 | (define-key map [menu-bar immediate alternate] |
| 420 | '(menu-item "Alternate Display" archive-alternate-display |
| 421 | :enable (boundp (archive-name "alternate-display")) |
| 422 | :help "Toggle alternate file info display")) |
| 423 | (define-key map [menu-bar immediate view] |
| 424 | '(menu-item "View This File" archive-view |
| 425 | :help "Display file at cursor in View Mode")) |
| 426 | (define-key map [menu-bar immediate display] |
| 427 | '(menu-item "Display in Other Window" archive-display-other-window |
| 428 | :help "Display file at cursor in another window")) |
| 429 | (define-key map [menu-bar immediate find-file-other-window] |
| 430 | '(menu-item "Find in Other Window" archive-extract-other-window |
| 431 | :help "Edit file at cursor in another window")) |
| 432 | (define-key map [menu-bar immediate find-file] |
| 433 | '(menu-item "Find This File" archive-extract |
| 434 | :help "Extract file at cursor and edit it")) |
| 435 | |
| 436 | (define-key map [menu-bar mark] |
| 437 | (cons "Mark" (make-sparse-keymap "Mark"))) |
| 438 | (define-key map [menu-bar mark unmark-all] |
| 439 | '(menu-item "Unmark All" archive-unmark-all-files |
| 440 | :help "Unmark all marked files")) |
| 441 | (define-key map [menu-bar mark deletion] |
| 442 | '(menu-item "Flag" archive-flag-deleted |
| 443 | :help "Flag file at cursor for deletion")) |
| 444 | (define-key map [menu-bar mark unmark] |
| 445 | '(menu-item "Unflag" archive-unflag |
| 446 | :help "Unmark file at cursor")) |
| 447 | (define-key map [menu-bar mark mark] |
| 448 | '(menu-item "Mark" archive-mark |
| 449 | :help "Mark file at cursor")) |
| 450 | |
| 451 | (define-key map [menu-bar operate] |
| 452 | (cons "Operate" (make-sparse-keymap "Operate"))) |
| 453 | (define-key map [menu-bar operate chown] |
| 454 | '(menu-item "Change Owner..." archive-chown-entry |
| 455 | :enable (fboundp (archive-name "chown-entry")) |
| 456 | :help "Change owner of marked files")) |
| 457 | (define-key map [menu-bar operate chgrp] |
| 458 | '(menu-item "Change Group..." archive-chgrp-entry |
| 459 | :enable (fboundp (archive-name "chgrp-entry")) |
| 460 | :help "Change group ownership of marked files")) |
| 461 | (define-key map [menu-bar operate chmod] |
| 462 | '(menu-item "Change Mode..." archive-chmod-entry |
| 463 | :enable (fboundp (archive-name "chmod-entry")) |
| 464 | :help "Change mode (permissions) of marked files")) |
| 465 | (define-key map [menu-bar operate rename] |
| 466 | '(menu-item "Rename to..." archive-rename-entry |
| 467 | :enable (fboundp (archive-name "rename-entry")) |
| 468 | :help "Rename marked files")) |
| 469 | ;;(define-key map [menu-bar operate copy] |
| 470 | ;; '(menu-item "Copy to..." archive-copy)) |
| 471 | (define-key map [menu-bar operate expunge] |
| 472 | '(menu-item "Expunge Marked Files" archive-expunge |
| 473 | :help "Delete all flagged files from archive")) |
| 474 | map)) |
| 475 | "Local keymap for archive mode listings.") |
| 476 | (defvar archive-file-name-indent nil "Column where file names start.") |
| 477 | |
| 478 | (defvar archive-remote nil "Non-nil if the archive is outside file system.") |
| 479 | (make-variable-buffer-local 'archive-remote) |
| 480 | (put 'archive-remote 'permanent-local t) |
| 481 | |
| 482 | (defvar archive-member-coding-system nil "Coding-system of archive member.") |
| 483 | (make-variable-buffer-local 'archive-member-coding-system) |
| 484 | |
| 485 | (defvar archive-alternate-display nil |
| 486 | "Non-nil when alternate information is shown.") |
| 487 | (make-variable-buffer-local 'archive-alternate-display) |
| 488 | (put 'archive-alternate-display 'permanent-local t) |
| 489 | |
| 490 | (defvar archive-superior-buffer nil "In archive members, points to archive.") |
| 491 | (put 'archive-superior-buffer 'permanent-local t) |
| 492 | |
| 493 | (defvar archive-subfile-mode nil "Non-nil in archive member buffers.") |
| 494 | (make-variable-buffer-local 'archive-subfile-mode) |
| 495 | (put 'archive-subfile-mode 'permanent-local t) |
| 496 | |
| 497 | (defvar archive-file-name-coding-system nil) |
| 498 | (make-variable-buffer-local 'archive-file-name-coding-system) |
| 499 | (put 'archive-file-name-coding-system 'permanent-local t) |
| 500 | |
| 501 | (defvar archive-files nil |
| 502 | "Vector of file descriptors. |
| 503 | Each descriptor is a vector of the form |
| 504 | [EXT-FILE-NAME INT-FILE-NAME CASE-FIDDLED MODE ...]") |
| 505 | (make-variable-buffer-local 'archive-files) |
| 506 | |
| 507 | ;; ------------------------------------------------------------------------- |
| 508 | ;;; Section: Support functions. |
| 509 | |
| 510 | (eval-when-compile |
| 511 | (defsubst byte-after (pos) |
| 512 | "Like char-after but an eight-bit char is converted to unibyte." |
| 513 | (multibyte-char-to-unibyte (char-after pos))) |
| 514 | (defsubst insert-unibyte (&rest args) |
| 515 | "Like insert but don't make unibyte string and eight-bit char multibyte." |
| 516 | (dolist (elt args) |
| 517 | (if (integerp elt) |
| 518 | (insert (if (< elt 128) elt (decode-char 'eight-bit elt))) |
| 519 | (insert (string-to-multibyte elt))))) |
| 520 | ) |
| 521 | |
| 522 | (defsubst archive-name (suffix) |
| 523 | (intern (concat "archive-" (symbol-name archive-subtype) "-" suffix))) |
| 524 | |
| 525 | (defun archive-l-e (str &optional len float) |
| 526 | "Convert little endian string/vector STR to integer. |
| 527 | Alternatively, STR may be a buffer position in the current buffer |
| 528 | in which case a second argument, length LEN, should be supplied. |
| 529 | FLOAT, if non-nil, means generate and return a float instead of an integer |
| 530 | \(use this for numbers that can overflow the Emacs integer)." |
| 531 | (if (stringp str) |
| 532 | (setq len (length str)) |
| 533 | (setq str (buffer-substring str (+ str len)))) |
| 534 | (setq str (string-as-unibyte str)) |
| 535 | (let ((result 0) |
| 536 | (i 0)) |
| 537 | (while (< i len) |
| 538 | (setq i (1+ i) |
| 539 | result (+ (if float (* result 256.0) (ash result 8)) |
| 540 | (aref str (- len i))))) |
| 541 | result)) |
| 542 | |
| 543 | (defun archive-int-to-mode (mode) |
| 544 | "Turn an integer like 0700 (i.e., 448) into a mode string like -rwx------." |
| 545 | ;; FIXME: merge with tar-grind-file-mode. |
| 546 | (string |
| 547 | (if (zerop (logand 8192 mode)) |
| 548 | (if (zerop (logand 16384 mode)) ?- ?d) |
| 549 | ?c) ; completeness |
| 550 | (if (zerop (logand 256 mode)) ?- ?r) |
| 551 | (if (zerop (logand 128 mode)) ?- ?w) |
| 552 | (if (zerop (logand 64 mode)) |
| 553 | (if (zerop (logand 1024 mode)) ?- ?S) |
| 554 | (if (zerop (logand 1024 mode)) ?x ?s)) |
| 555 | (if (zerop (logand 32 mode)) ?- ?r) |
| 556 | (if (zerop (logand 16 mode)) ?- ?w) |
| 557 | (if (zerop (logand 8 mode)) |
| 558 | (if (zerop (logand 2048 mode)) ?- ?S) |
| 559 | (if (zerop (logand 2048 mode)) ?x ?s)) |
| 560 | (if (zerop (logand 4 mode)) ?- ?r) |
| 561 | (if (zerop (logand 2 mode)) ?- ?w) |
| 562 | (if (zerop (logand 1 mode)) ?- ?x))) |
| 563 | |
| 564 | (defun archive-calc-mode (oldmode newmode &optional error) |
| 565 | "From the integer OLDMODE and the string NEWMODE calculate a new file mode. |
| 566 | NEWMODE may be an octal number including a leading zero in which case it |
| 567 | will become the new mode.\n |
| 568 | NEWMODE may also be a relative specification like \"og-rwx\" in which case |
| 569 | OLDMODE will be modified accordingly just like chmod(2) would have done.\n |
| 570 | If optional third argument ERROR is non-nil an error will be signaled if |
| 571 | the mode is invalid. If ERROR is nil then nil will be returned." |
| 572 | (cond ((string-match "^0[0-7]*$" newmode) |
| 573 | (let ((result 0) |
| 574 | (len (length newmode)) |
| 575 | (i 1)) |
| 576 | (while (< i len) |
| 577 | (setq result (+ (lsh result 3) (aref newmode i) (- ?0)) |
| 578 | i (1+ i))) |
| 579 | (logior (logand oldmode 65024) result))) |
| 580 | ((string-match "^\\([agou]+\\)\\([---+=]\\)\\([rwxst]+\\)$" newmode) |
| 581 | (let ((who 0) |
| 582 | (result oldmode) |
| 583 | (op (aref newmode (match-beginning 2))) |
| 584 | (bits 0) |
| 585 | (i (match-beginning 3))) |
| 586 | (while (< i (match-end 3)) |
| 587 | (let ((rwx (aref newmode i))) |
| 588 | (setq bits (logior bits (cond ((= rwx ?r) 292) |
| 589 | ((= rwx ?w) 146) |
| 590 | ((= rwx ?x) 73) |
| 591 | ((= rwx ?s) 3072) |
| 592 | ((= rwx ?t) 512))) |
| 593 | i (1+ i)))) |
| 594 | (while (< who (match-end 1)) |
| 595 | (let* ((whoc (aref newmode who)) |
| 596 | (whomask (cond ((= whoc ?a) 4095) |
| 597 | ((= whoc ?u) 1472) |
| 598 | ((= whoc ?g) 2104) |
| 599 | ((= whoc ?o) 7)))) |
| 600 | (if (= op ?=) |
| 601 | (setq result (logand result (lognot whomask)))) |
| 602 | (if (= op ?-) |
| 603 | (setq result (logand result (lognot (logand whomask bits)))) |
| 604 | (setq result (logior result (logand whomask bits))))) |
| 605 | (setq who (1+ who))) |
| 606 | result)) |
| 607 | (t |
| 608 | (if error |
| 609 | (error "Invalid mode specification: %s" newmode))))) |
| 610 | |
| 611 | (defun archive-dosdate (date) |
| 612 | "Stringify dos packed DATE record." |
| 613 | (let ((year (+ 1980 (logand (ash date -9) 127))) |
| 614 | (month (logand (ash date -5) 15)) |
| 615 | (day (logand date 31))) |
| 616 | (if (or (> month 12) (< month 1)) |
| 617 | "" |
| 618 | (format "%2d-%s-%d" |
| 619 | day |
| 620 | (aref ["Jan" "Feb" "Mar" "Apr" "May" "Jun" |
| 621 | "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"] (1- month)) |
| 622 | year)))) |
| 623 | |
| 624 | (defun archive-dostime (time) |
| 625 | "Stringify dos packed TIME record." |
| 626 | (let ((hour (logand (ash time -11) 31)) |
| 627 | (minute (logand (ash time -5) 63)) |
| 628 | (second (* 2 (logand time 31)))) ; 2 seconds resolution |
| 629 | (format "%02d:%02d:%02d" hour minute second))) |
| 630 | |
| 631 | (defun archive-unixdate (low high) |
| 632 | "Stringify Unix (LOW HIGH) date." |
| 633 | (let* ((time (cons high low)) |
| 634 | (str (current-time-string time))) |
| 635 | (format "%s-%s-%s" |
| 636 | (substring str 8 10) |
| 637 | (substring str 4 7) |
| 638 | (format-time-string "%Y" time)))) |
| 639 | |
| 640 | (defun archive-unixtime (low high) |
| 641 | "Stringify Unix (LOW HIGH) time." |
| 642 | (let ((str (current-time-string (cons high low)))) |
| 643 | (substring str 11 19))) |
| 644 | |
| 645 | (defun archive-get-lineno () |
| 646 | (if (>= (point) archive-file-list-start) |
| 647 | (count-lines archive-file-list-start |
| 648 | (line-beginning-position)) |
| 649 | 0)) |
| 650 | |
| 651 | (defun archive-get-descr (&optional noerror) |
| 652 | "Return the descriptor vector for file at point. |
| 653 | Does not signal an error if optional argument NOERROR is non-nil." |
| 654 | (let ((no (archive-get-lineno))) |
| 655 | (if (and (>= (point) archive-file-list-start) |
| 656 | (< no (length archive-files))) |
| 657 | (let ((item (aref archive-files no))) |
| 658 | (if (vectorp item) |
| 659 | item |
| 660 | (if (not noerror) |
| 661 | (error "Entry is not a regular member of the archive")))) |
| 662 | (if (not noerror) |
| 663 | (error "Line does not describe a member of the archive"))))) |
| 664 | ;; ------------------------------------------------------------------------- |
| 665 | ;;; Section: the mode definition |
| 666 | |
| 667 | ;;;###autoload |
| 668 | (defun archive-mode (&optional force) |
| 669 | "Major mode for viewing an archive file in a dired-like way. |
| 670 | You can move around using the usual cursor motion commands. |
| 671 | Letters no longer insert themselves. |
| 672 | Type `e' to pull a file out of the archive and into its own buffer; |
| 673 | or click mouse-2 on the file's line in the archive mode buffer. |
| 674 | |
| 675 | If you edit a sub-file of this archive (as with the `e' command) and |
| 676 | save it, the contents of that buffer will be saved back into the |
| 677 | archive. |
| 678 | |
| 679 | \\{archive-mode-map}" |
| 680 | ;; This is not interactive because you shouldn't be turning this |
| 681 | ;; mode on and off. You can corrupt things that way. |
| 682 | (if (zerop (buffer-size)) |
| 683 | ;; At present we cannot create archives from scratch |
| 684 | (funcall (or (default-value 'major-mode) 'fundamental-mode)) |
| 685 | (if (and (not force) archive-files) nil |
| 686 | (kill-all-local-variables) |
| 687 | (let* ((type (archive-find-type)) |
| 688 | (typename (capitalize (symbol-name type)))) |
| 689 | (make-local-variable 'archive-subtype) |
| 690 | (setq archive-subtype type) |
| 691 | |
| 692 | ;; Buffer contains treated image of file before the file contents |
| 693 | (make-local-variable 'revert-buffer-function) |
| 694 | (setq revert-buffer-function 'archive-mode-revert) |
| 695 | (auto-save-mode 0) |
| 696 | |
| 697 | (add-hook 'write-contents-functions 'archive-write-file nil t) |
| 698 | |
| 699 | (make-local-variable 'require-final-newline) |
| 700 | (setq require-final-newline nil) |
| 701 | (make-local-variable 'local-enable-local-variables) |
| 702 | (setq local-enable-local-variables nil) |
| 703 | |
| 704 | ;; Prevent loss of data when saving the file. |
| 705 | (make-local-variable 'file-precious-flag) |
| 706 | (setq file-precious-flag t) |
| 707 | |
| 708 | (make-local-variable 'archive-read-only) |
| 709 | ;; Archives which are inside other archives and whose |
| 710 | ;; names are invalid for this OS, can't be written. |
| 711 | (setq archive-read-only |
| 712 | (or (not (file-writable-p (buffer-file-name))) |
| 713 | (and archive-subfile-mode |
| 714 | (string-match file-name-invalid-regexp |
| 715 | (aref archive-subfile-mode 0))))) |
| 716 | |
| 717 | ;; Should we use a local copy when accessing from outside Emacs? |
| 718 | (make-local-variable 'archive-local-name) |
| 719 | |
| 720 | ;; An archive can contain another archive whose name is invalid |
| 721 | ;; on local filesystem. Treat such archives as remote. |
| 722 | (or archive-remote |
| 723 | (setq archive-remote |
| 724 | (or (string-match archive-remote-regexp (buffer-file-name)) |
| 725 | (string-match file-name-invalid-regexp |
| 726 | (buffer-file-name))))) |
| 727 | |
| 728 | (setq major-mode 'archive-mode) |
| 729 | (setq mode-name (concat typename "-Archive")) |
| 730 | ;; Run archive-foo-mode-hook and archive-mode-hook |
| 731 | (run-mode-hooks (archive-name "mode-hook") 'archive-mode-hook) |
| 732 | (use-local-map archive-mode-map)) |
| 733 | |
| 734 | (make-local-variable 'archive-proper-file-start) |
| 735 | (make-local-variable 'archive-file-list-start) |
| 736 | (make-local-variable 'archive-file-list-end) |
| 737 | (make-local-variable 'archive-file-name-indent) |
| 738 | (setq archive-file-name-coding-system |
| 739 | (or file-name-coding-system |
| 740 | default-file-name-coding-system |
| 741 | locale-coding-system)) |
| 742 | (if (default-value 'enable-multibyte-characters) |
| 743 | (set-buffer-multibyte 'to)) |
| 744 | (archive-summarize nil) |
| 745 | (setq buffer-read-only t)))) |
| 746 | |
| 747 | ;; Archive mode is suitable only for specially formatted data. |
| 748 | (put 'archive-mode 'mode-class 'special) |
| 749 | |
| 750 | (let ((item1 '(archive-subfile-mode " Archive"))) |
| 751 | (or (member item1 minor-mode-alist) |
| 752 | (setq minor-mode-alist (cons item1 minor-mode-alist)))) |
| 753 | ;; ------------------------------------------------------------------------- |
| 754 | (defun archive-find-type () |
| 755 | (widen) |
| 756 | (goto-char (point-min)) |
| 757 | ;; The funny [] here make it unlikely that the .elc file will be treated |
| 758 | ;; as an archive by other software. |
| 759 | (let (case-fold-search) |
| 760 | (cond ((looking-at "\\(PK00\\)?[P]K\003\004") 'zip) |
| 761 | ((looking-at "..-l[hz][0-9ds]-") 'lzh) |
| 762 | ((looking-at "....................[\334]\247\304\375") 'zoo) |
| 763 | ((and (looking-at "\C-z") ; signature too simple, IMHO |
| 764 | (string-match "\\.[aA][rR][cC]\\'" |
| 765 | (or buffer-file-name (buffer-name)))) |
| 766 | 'arc) |
| 767 | ;; This pattern modeled on the BSD/GNU+Linux `file' command. |
| 768 | ;; Have seen capital "LHA's", and file has lower case "LHa's" too. |
| 769 | ;; Note this regexp is also in archive-exe-p. |
| 770 | ((looking-at "MZ\\(.\\|\n\\)\\{34\\}LH[aA]'s SFX ") 'lzh-exe) |
| 771 | ((looking-at "Rar!") 'rar) |
| 772 | ((looking-at "!<arch>\n") 'ar) |
| 773 | ((and (looking-at "MZ") |
| 774 | (re-search-forward "Rar!" (+ (point) 100000) t)) |
| 775 | 'rar-exe) |
| 776 | ((looking-at "7z\274\257\047\034") '7z) |
| 777 | (t (error "Buffer format not recognized"))))) |
| 778 | ;; ------------------------------------------------------------------------- |
| 779 | |
| 780 | (defun archive-desummarize () |
| 781 | (let ((inhibit-read-only t) |
| 782 | (modified (buffer-modified-p))) |
| 783 | (widen) |
| 784 | (delete-region (point-min) archive-proper-file-start) |
| 785 | (restore-buffer-modified-p modified))) |
| 786 | |
| 787 | |
| 788 | (defun archive-summarize (&optional shut-up) |
| 789 | "Parse the contents of the archive file in the current buffer. |
| 790 | Place a dired-like listing on the front; |
| 791 | then narrow to it, so that only that listing |
| 792 | is visible (and the real data of the buffer is hidden). |
| 793 | Optional argument SHUT-UP, if non-nil, means don't print messages |
| 794 | when parsing the archive." |
| 795 | (widen) |
| 796 | (let ((buffer-file-truename nil) ; avoid changing dir mtime by lock_file |
| 797 | (inhibit-read-only t)) |
| 798 | (setq archive-proper-file-start (copy-marker (point-min) t)) |
| 799 | (set (make-local-variable 'change-major-mode-hook) 'archive-desummarize) |
| 800 | (or shut-up |
| 801 | (message "Parsing archive file...")) |
| 802 | (buffer-disable-undo (current-buffer)) |
| 803 | (setq archive-files (funcall (archive-name "summarize"))) |
| 804 | (or shut-up |
| 805 | (message "Parsing archive file...done.")) |
| 806 | (setq archive-proper-file-start (point-marker)) |
| 807 | (narrow-to-region (point-min) (point)) |
| 808 | (set-buffer-modified-p nil) |
| 809 | (buffer-enable-undo)) |
| 810 | (goto-char archive-file-list-start) |
| 811 | (archive-next-line 0)) |
| 812 | |
| 813 | (defun archive-resummarize () |
| 814 | "Recreate the contents listing of an archive." |
| 815 | (let ((no (archive-get-lineno))) |
| 816 | (archive-desummarize) |
| 817 | (archive-summarize t) |
| 818 | (goto-char archive-file-list-start) |
| 819 | (archive-next-line no))) |
| 820 | |
| 821 | (defun archive-summarize-files (files) |
| 822 | "Insert a description of a list of files annotated with proper mouse face." |
| 823 | (setq archive-file-list-start (point-marker)) |
| 824 | (setq archive-file-name-indent (if files (aref (car files) 1) 0)) |
| 825 | ;; We don't want to do an insert for each element since that takes too |
| 826 | ;; long when the archive -- which has to be moved in memory -- is large. |
| 827 | (insert |
| 828 | (apply |
| 829 | (function concat) |
| 830 | (mapcar |
| 831 | (lambda (fil) |
| 832 | ;; Using `concat' here copies the text also, so we can add |
| 833 | ;; properties without problems. |
| 834 | (let ((text (concat (aref fil 0) "\n"))) |
| 835 | (if (featurep 'xemacs) |
| 836 | () ; out of luck |
| 837 | (add-text-properties |
| 838 | (aref fil 1) (aref fil 2) |
| 839 | '(mouse-face highlight |
| 840 | help-echo "mouse-2: extract this file into a buffer") |
| 841 | text)) |
| 842 | text)) |
| 843 | files))) |
| 844 | (setq archive-file-list-end (point-marker))) |
| 845 | |
| 846 | (defun archive-alternate-display () |
| 847 | "Toggle alternative display. |
| 848 | To avoid very long lines archive mode does not show all information. |
| 849 | This function changes the set of information shown for each files." |
| 850 | (interactive) |
| 851 | (setq archive-alternate-display (not archive-alternate-display)) |
| 852 | (archive-resummarize)) |
| 853 | ;; ------------------------------------------------------------------------- |
| 854 | ;;; Section: Local archive copy handling |
| 855 | |
| 856 | (defun archive-unique-fname (fname dir) |
| 857 | "Make sure a file FNAME can be created uniquely in directory DIR. |
| 858 | |
| 859 | If FNAME can be uniquely created in DIR, it is returned unaltered. |
| 860 | If FNAME is something our underlying filesystem can't grok, or if another |
| 861 | file by that name already exists in DIR, a unique new name is generated |
| 862 | using `make-temp-file', and the generated name is returned." |
| 863 | (let ((fullname (expand-file-name fname dir)) |
| 864 | (alien (string-match file-name-invalid-regexp fname)) |
| 865 | (tmpfile |
| 866 | (expand-file-name |
| 867 | (if (if (fboundp 'msdos-long-file-names) |
| 868 | (not (msdos-long-file-names))) |
| 869 | "am" |
| 870 | "arc-mode.") |
| 871 | dir))) |
| 872 | (if (or alien (file-exists-p fullname)) |
| 873 | (progn |
| 874 | ;; Make sure all the leading directories in |
| 875 | ;; archive-local-name exist under archive-tmpdir, so that |
| 876 | ;; the directory structure recorded in the archive is |
| 877 | ;; reconstructed in the temporary directory. |
| 878 | (make-directory (file-name-directory tmpfile) t) |
| 879 | (make-temp-file tmpfile)) |
| 880 | ;; Make sure all the leading directories in `fullname' exist |
| 881 | ;; under archive-tmpdir. This is necessary for nested archives |
| 882 | ;; (`archive-extract' sets `archive-remote' to t in case |
| 883 | ;; an archive occurs inside another archive). |
| 884 | (make-directory (file-name-directory fullname) t) |
| 885 | fullname))) |
| 886 | |
| 887 | (defun archive-maybe-copy (archive) |
| 888 | (let ((coding-system-for-write 'no-conversion)) |
| 889 | (if archive-remote |
| 890 | (let ((start (point-max)) |
| 891 | ;; Sometimes ARCHIVE is invalid while its actual name, as |
| 892 | ;; recorded in its parent archive, is not. For example, an |
| 893 | ;; archive bar.zip inside another archive foo.zip gets a name |
| 894 | ;; "foo.zip:bar.zip", which is invalid on DOS/Windows. |
| 895 | ;; So use the actual name if available. |
| 896 | (archive-name |
| 897 | (or (and archive-subfile-mode (aref archive-subfile-mode 0)) |
| 898 | archive))) |
| 899 | (setq archive-local-name |
| 900 | (archive-unique-fname archive-name archive-tmpdir)) |
| 901 | (save-restriction |
| 902 | (widen) |
| 903 | (write-region start (point-max) archive-local-name nil 'nomessage)) |
| 904 | archive-local-name) |
| 905 | (if (buffer-modified-p) (save-buffer)) |
| 906 | archive))) |
| 907 | |
| 908 | (defun archive-maybe-update (unchanged) |
| 909 | (if archive-remote |
| 910 | (let ((name archive-local-name) |
| 911 | (modified (buffer-modified-p)) |
| 912 | (coding-system-for-read 'no-conversion) |
| 913 | (lno (archive-get-lineno)) |
| 914 | (inhibit-read-only t)) |
| 915 | (if unchanged nil |
| 916 | (setq archive-files nil) |
| 917 | (erase-buffer) |
| 918 | (insert-file-contents name) |
| 919 | (archive-mode t) |
| 920 | (goto-char archive-file-list-start) |
| 921 | (archive-next-line lno)) |
| 922 | (archive-delete-local name) |
| 923 | (if (not unchanged) |
| 924 | (message |
| 925 | "Buffer `%s' must be saved for changes to take effect" |
| 926 | (buffer-name (current-buffer)))) |
| 927 | (set-buffer-modified-p (or modified (not unchanged)))))) |
| 928 | |
| 929 | (defun archive-delete-local (name) |
| 930 | "Delete file NAME and its parents up to and including `archive-tmpdir'." |
| 931 | (let ((again t) |
| 932 | (top (directory-file-name (file-name-as-directory archive-tmpdir)))) |
| 933 | (condition-case nil |
| 934 | (delete-file name) |
| 935 | (error nil)) |
| 936 | (while again |
| 937 | (setq name (directory-file-name (file-name-directory name))) |
| 938 | (condition-case nil |
| 939 | (delete-directory name) |
| 940 | (error nil)) |
| 941 | (if (string= name top) (setq again nil))))) |
| 942 | ;; ------------------------------------------------------------------------- |
| 943 | ;;; Section: Member extraction |
| 944 | |
| 945 | (defun archive-try-jka-compr () |
| 946 | (when (and auto-compression-mode |
| 947 | (jka-compr-get-compression-info buffer-file-name)) |
| 948 | (let* ((basename (file-name-nondirectory buffer-file-name)) |
| 949 | (tmpname (if (string-match ":\\([^:]+\\)\\'" basename) |
| 950 | (match-string 1 basename) basename)) |
| 951 | (tmpfile (make-temp-file (file-name-sans-extension tmpname) |
| 952 | nil |
| 953 | (file-name-extension tmpname 'period)))) |
| 954 | (unwind-protect |
| 955 | (progn |
| 956 | (let ((coding-system-for-write 'no-conversion) |
| 957 | ;; Don't re-compress this data just before decompressing it. |
| 958 | (jka-compr-inhibit t)) |
| 959 | (write-region (point-min) (point-max) tmpfile nil 'quiet)) |
| 960 | (erase-buffer) |
| 961 | (let ((coding-system-for-read 'no-conversion)) |
| 962 | (insert-file-contents tmpfile))) |
| 963 | (delete-file tmpfile))))) |
| 964 | |
| 965 | (defun archive-file-name-handler (op &rest args) |
| 966 | (or (eq op 'file-exists-p) |
| 967 | (let ((file-name-handler-alist nil)) |
| 968 | (apply op args)))) |
| 969 | |
| 970 | (defun archive-set-buffer-as-visiting-file (filename) |
| 971 | "Set the current buffer as if it were visiting FILENAME." |
| 972 | (save-excursion |
| 973 | (goto-char (point-min)) |
| 974 | (let ((buffer-undo-list t) |
| 975 | (coding |
| 976 | (or coding-system-for-read |
| 977 | (and set-auto-coding-function |
| 978 | (save-excursion |
| 979 | (funcall set-auto-coding-function |
| 980 | filename (- (point-max) (point-min))))) |
| 981 | ;; The following let-binding of file-name-handler-alist forces |
| 982 | ;; find-file-not-found-set-buffer-file-coding-system to ignore |
| 983 | ;; the file's name (see dos-w32.el). |
| 984 | (let ((file-name-handler-alist |
| 985 | '(("" . archive-file-name-handler)))) |
| 986 | (car (find-operation-coding-system |
| 987 | 'insert-file-contents |
| 988 | (cons filename (current-buffer)) t)))))) |
| 989 | (unless (or coding-system-for-read |
| 990 | enable-multibyte-characters) |
| 991 | (setq coding |
| 992 | (coding-system-change-text-conversion coding 'raw-text))) |
| 993 | (unless (memq coding '(nil no-conversion)) |
| 994 | (decode-coding-region (point-min) (point-max) coding) |
| 995 | (setq last-coding-system-used coding)) |
| 996 | (set-buffer-modified-p nil) |
| 997 | (kill-local-variable 'buffer-file-coding-system) |
| 998 | (after-insert-file-set-coding (- (point-max) (point-min)))))) |
| 999 | |
| 1000 | (define-obsolete-function-alias 'archive-mouse-extract 'archive-extract "22.1") |
| 1001 | |
| 1002 | (defun archive-extract (&optional other-window-p event) |
| 1003 | "In archive mode, extract this entry of the archive into its own buffer." |
| 1004 | (interactive (list nil last-input-event)) |
| 1005 | (if event (posn-set-point (event-end event))) |
| 1006 | (let* ((view-p (eq other-window-p 'view)) |
| 1007 | (descr (archive-get-descr)) |
| 1008 | (ename (aref descr 0)) |
| 1009 | (iname (aref descr 1)) |
| 1010 | (archive-buffer (current-buffer)) |
| 1011 | (arcdir default-directory) |
| 1012 | (archive (buffer-file-name)) |
| 1013 | (arcname (file-name-nondirectory archive)) |
| 1014 | (bufname (concat (file-name-nondirectory iname) " (" arcname ")")) |
| 1015 | (extractor (archive-name "extract")) |
| 1016 | ;; Members with file names which aren't valid for the |
| 1017 | ;; underlying filesystem, are treated as read-only. |
| 1018 | (read-only-p (or archive-read-only |
| 1019 | view-p |
| 1020 | (string-match file-name-invalid-regexp ename))) |
| 1021 | (arcfilename (expand-file-name (concat arcname ":" iname))) |
| 1022 | (buffer (get-buffer bufname)) |
| 1023 | (just-created nil) |
| 1024 | (file-name-coding archive-file-name-coding-system)) |
| 1025 | (if (and buffer |
| 1026 | (string= (buffer-file-name buffer) arcfilename)) |
| 1027 | nil |
| 1028 | (setq archive (archive-maybe-copy archive)) |
| 1029 | (setq bufname (generate-new-buffer-name bufname)) |
| 1030 | (setq buffer (get-buffer-create bufname)) |
| 1031 | (setq just-created t) |
| 1032 | (with-current-buffer buffer |
| 1033 | (setq buffer-file-name arcfilename) |
| 1034 | (setq buffer-file-truename |
| 1035 | (abbreviate-file-name buffer-file-name)) |
| 1036 | ;; Set the default-directory to the dir of the superior buffer. |
| 1037 | (setq default-directory arcdir) |
| 1038 | (make-local-variable 'archive-superior-buffer) |
| 1039 | (setq archive-superior-buffer archive-buffer) |
| 1040 | (add-hook 'write-file-functions 'archive-write-file-member nil t) |
| 1041 | (setq archive-subfile-mode descr) |
| 1042 | (setq archive-file-name-coding-system file-name-coding) |
| 1043 | (if (and |
| 1044 | (null |
| 1045 | (let (;; We may have to encode the file name argument for |
| 1046 | ;; external programs. |
| 1047 | (coding-system-for-write |
| 1048 | (and enable-multibyte-characters |
| 1049 | archive-file-name-coding-system)) |
| 1050 | ;; We read an archive member by no-conversion at |
| 1051 | ;; first, then decode appropriately by calling |
| 1052 | ;; archive-set-buffer-as-visiting-file later. |
| 1053 | (coding-system-for-read 'no-conversion)) |
| 1054 | (condition-case err |
| 1055 | (if (fboundp extractor) |
| 1056 | (funcall extractor archive ename) |
| 1057 | (archive-*-extract archive ename |
| 1058 | (symbol-value extractor))) |
| 1059 | (error |
| 1060 | (ding (message "%s" (error-message-string err))) |
| 1061 | nil)))) |
| 1062 | just-created) |
| 1063 | (progn |
| 1064 | (set-buffer-modified-p nil) |
| 1065 | (kill-buffer buffer)) |
| 1066 | (archive-try-jka-compr) ;Pretty ugly hack :-( |
| 1067 | (archive-set-buffer-as-visiting-file ename) |
| 1068 | (goto-char (point-min)) |
| 1069 | (rename-buffer bufname) |
| 1070 | (setq buffer-read-only read-only-p) |
| 1071 | (setq buffer-undo-list nil) |
| 1072 | (set-buffer-modified-p nil) |
| 1073 | (setq buffer-saved-size (buffer-size)) |
| 1074 | (normal-mode) |
| 1075 | ;; Just in case an archive occurs inside another archive. |
| 1076 | (when (derived-mode-p 'archive-mode) |
| 1077 | (setq archive-remote t) |
| 1078 | (if read-only-p (setq archive-read-only t)) |
| 1079 | ;; We will write out the archive ourselves if it is |
| 1080 | ;; part of another archive. |
| 1081 | (remove-hook 'write-contents-functions 'archive-write-file t)) |
| 1082 | (run-hooks 'archive-extract-hook) |
| 1083 | (if archive-read-only |
| 1084 | (message "Note: altering this archive is not implemented.")))) |
| 1085 | (archive-maybe-update t)) |
| 1086 | (or (not (buffer-name buffer)) |
| 1087 | (cond |
| 1088 | (view-p |
| 1089 | (view-buffer buffer (and just-created 'kill-buffer-if-not-modified))) |
| 1090 | ((eq other-window-p 'display) (display-buffer buffer)) |
| 1091 | (other-window-p (switch-to-buffer-other-window buffer)) |
| 1092 | (t (switch-to-buffer buffer)))))) |
| 1093 | |
| 1094 | (defun archive-*-extract (archive name command) |
| 1095 | (let* ((default-directory (file-name-as-directory archive-tmpdir)) |
| 1096 | (tmpfile (expand-file-name (file-name-nondirectory name) |
| 1097 | default-directory)) |
| 1098 | exit-status success) |
| 1099 | (make-directory (directory-file-name default-directory) t) |
| 1100 | (setq exit-status |
| 1101 | (apply 'call-process |
| 1102 | (car command) |
| 1103 | nil |
| 1104 | nil |
| 1105 | nil |
| 1106 | (append (cdr command) (list archive name)))) |
| 1107 | (cond ((and (numberp exit-status) (zerop exit-status)) |
| 1108 | (if (not (file-exists-p tmpfile)) |
| 1109 | (ding (message "`%s': no such file or directory" tmpfile)) |
| 1110 | (insert-file-contents tmpfile) |
| 1111 | (setq success t))) |
| 1112 | ((numberp exit-status) |
| 1113 | (ding |
| 1114 | (message "`%s' exited with status %d" (car command) exit-status))) |
| 1115 | ((stringp exit-status) |
| 1116 | (ding (message "`%s' aborted: %s" (car command) exit-status))) |
| 1117 | (t |
| 1118 | (ding (message "`%s' failed" (car command))))) |
| 1119 | (archive-delete-local tmpfile) |
| 1120 | success)) |
| 1121 | |
| 1122 | (defun archive-extract-by-stdout (archive name command &optional stderr-test) |
| 1123 | (let ((stderr-file (make-temp-file "arc-stderr"))) |
| 1124 | (unwind-protect |
| 1125 | (prog1 |
| 1126 | (apply 'call-process |
| 1127 | (car command) |
| 1128 | nil |
| 1129 | (if stderr-file (list t stderr-file) t) |
| 1130 | nil |
| 1131 | (append (cdr command) (list archive name))) |
| 1132 | (with-temp-buffer |
| 1133 | (insert-file-contents stderr-file) |
| 1134 | (goto-char (point-min)) |
| 1135 | (when (if (stringp stderr-test) |
| 1136 | (not (re-search-forward stderr-test nil t)) |
| 1137 | (> (buffer-size) 0)) |
| 1138 | (message "%s" (buffer-string))))) |
| 1139 | (if (file-exists-p stderr-file) |
| 1140 | (delete-file stderr-file))))) |
| 1141 | |
| 1142 | (defun archive-extract-by-file (archive name command &optional stdout-test) |
| 1143 | (let ((dest (make-temp-file "arc-dir" 'dir)) |
| 1144 | (stdout-file (make-temp-file "arc-stdout"))) |
| 1145 | (unwind-protect |
| 1146 | (prog1 |
| 1147 | (apply 'call-process |
| 1148 | (car command) |
| 1149 | nil |
| 1150 | `(:file ,stdout-file) |
| 1151 | nil |
| 1152 | (append (cdr command) (list archive name dest))) |
| 1153 | (with-temp-buffer |
| 1154 | (insert-file-contents stdout-file) |
| 1155 | (goto-char (point-min)) |
| 1156 | (when (if (stringp stdout-test) |
| 1157 | (not (re-search-forward stdout-test nil t)) |
| 1158 | (> (buffer-size) 0)) |
| 1159 | (message "%s" (buffer-string)))) |
| 1160 | (if (file-exists-p (expand-file-name name dest)) |
| 1161 | (insert-file-contents-literally (expand-file-name name dest)))) |
| 1162 | (if (file-exists-p stdout-file) |
| 1163 | (delete-file stdout-file)) |
| 1164 | (if (file-exists-p (expand-file-name name dest)) |
| 1165 | (delete-file (expand-file-name name dest))) |
| 1166 | (while (file-name-directory name) |
| 1167 | (setq name (directory-file-name (file-name-directory name))) |
| 1168 | (when (file-directory-p (expand-file-name name dest)) |
| 1169 | (delete-directory (expand-file-name name dest)))) |
| 1170 | (when (file-directory-p dest) |
| 1171 | (delete-directory dest))))) |
| 1172 | |
| 1173 | (defun archive-extract-other-window () |
| 1174 | "In archive mode, find this member in another window." |
| 1175 | (interactive) |
| 1176 | (archive-extract t)) |
| 1177 | |
| 1178 | (defun archive-display-other-window () |
| 1179 | "In archive mode, display this member in another window." |
| 1180 | (interactive) |
| 1181 | (archive-extract 'display)) |
| 1182 | |
| 1183 | (defun archive-view () |
| 1184 | "In archive mode, view the member on this line." |
| 1185 | (interactive) |
| 1186 | (archive-extract 'view)) |
| 1187 | |
| 1188 | (defun archive-add-new-member (arcbuf name) |
| 1189 | "Add current buffer to the archive in ARCBUF naming it NAME." |
| 1190 | (interactive |
| 1191 | (list (get-buffer |
| 1192 | (read-buffer "Buffer containing archive: " |
| 1193 | ;; Find first archive buffer and suggest that |
| 1194 | (let ((bufs (buffer-list))) |
| 1195 | (while (and bufs |
| 1196 | (not (with-current-buffer (car bufs) |
| 1197 | (derived-mode-p 'archive-mode)))) |
| 1198 | (setq bufs (cdr bufs))) |
| 1199 | (if bufs |
| 1200 | (car bufs) |
| 1201 | (error "There are no archive buffers"))) |
| 1202 | t)) |
| 1203 | (read-string "File name in archive: " |
| 1204 | (if buffer-file-name |
| 1205 | (file-name-nondirectory buffer-file-name) |
| 1206 | "")))) |
| 1207 | (with-current-buffer arcbuf |
| 1208 | (or (derived-mode-p 'archive-mode) |
| 1209 | (error "Buffer is not an archive buffer")) |
| 1210 | (if archive-read-only |
| 1211 | (error "Archive is read-only"))) |
| 1212 | (if (eq arcbuf (current-buffer)) |
| 1213 | (error "An archive buffer cannot be added to itself")) |
| 1214 | (if (string= name "") |
| 1215 | (error "Archive members may not be given empty names")) |
| 1216 | (let ((func (with-current-buffer arcbuf |
| 1217 | (archive-name "add-new-member"))) |
| 1218 | (membuf (current-buffer))) |
| 1219 | (if (fboundp func) |
| 1220 | (with-current-buffer arcbuf |
| 1221 | (funcall func buffer-file-name membuf name)) |
| 1222 | (error "Adding a new member is not supported for this archive type")))) |
| 1223 | ;; ------------------------------------------------------------------------- |
| 1224 | ;;; Section: IO stuff |
| 1225 | |
| 1226 | (defun archive-write-file-member () |
| 1227 | (save-excursion |
| 1228 | (save-restriction |
| 1229 | (message "Updating archive...") |
| 1230 | (widen) |
| 1231 | (let ((writer (with-current-buffer archive-superior-buffer |
| 1232 | (archive-name "write-file-member"))) |
| 1233 | (archive (with-current-buffer archive-superior-buffer |
| 1234 | (archive-maybe-copy (buffer-file-name))))) |
| 1235 | (if (fboundp writer) |
| 1236 | (funcall writer archive archive-subfile-mode) |
| 1237 | (archive-*-write-file-member archive |
| 1238 | archive-subfile-mode |
| 1239 | (symbol-value writer))) |
| 1240 | (set-buffer-modified-p nil) |
| 1241 | (message "Updating archive...done")) |
| 1242 | (set-buffer archive-superior-buffer) |
| 1243 | (if (not archive-remote) (revert-buffer) (archive-maybe-update nil)))) |
| 1244 | ;; Restore the value of last-coding-system-used, so that basic-save-buffer |
| 1245 | ;; won't reset the coding-system of this archive member. |
| 1246 | (if (local-variable-p 'archive-member-coding-system) |
| 1247 | (setq last-coding-system-used archive-member-coding-system)) |
| 1248 | t) |
| 1249 | |
| 1250 | (defun archive-*-write-file-member (archive descr command) |
| 1251 | (let* ((ename (aref descr 0)) |
| 1252 | (tmpfile (expand-file-name ename archive-tmpdir)) |
| 1253 | (top (directory-file-name (file-name-as-directory archive-tmpdir))) |
| 1254 | (default-directory (file-name-as-directory top))) |
| 1255 | (unwind-protect |
| 1256 | (progn |
| 1257 | (make-directory (file-name-directory tmpfile) t) |
| 1258 | ;; If the member is itself an archive, write it without |
| 1259 | ;; the dired-like listing we created. |
| 1260 | (if (eq major-mode 'archive-mode) |
| 1261 | (archive-write-file tmpfile) |
| 1262 | (write-region nil nil tmpfile nil 'nomessage)) |
| 1263 | ;; basic-save-buffer needs last-coding-system-used to have |
| 1264 | ;; the value used to write the file, so save it before any |
| 1265 | ;; further processing clobbers it (we restore it in |
| 1266 | ;; archive-write-file-member, above). |
| 1267 | (setq archive-member-coding-system last-coding-system-used) |
| 1268 | (if (aref descr 3) |
| 1269 | ;; Set the file modes, but make sure we can read it. |
| 1270 | (set-file-modes tmpfile (logior ?\400 (aref descr 3)))) |
| 1271 | (setq ename |
| 1272 | (encode-coding-string ename archive-file-name-coding-system)) |
| 1273 | (let* ((coding-system-for-write 'no-conversion) |
| 1274 | (exitcode (apply 'call-process |
| 1275 | (car command) |
| 1276 | nil |
| 1277 | nil |
| 1278 | nil |
| 1279 | (append (cdr command) |
| 1280 | (list archive ename))))) |
| 1281 | (or (zerop exitcode) |
| 1282 | (error "Updating was unsuccessful (%S)" exitcode)))) |
| 1283 | (archive-delete-local tmpfile)))) |
| 1284 | |
| 1285 | (defun archive-write-file (&optional file) |
| 1286 | (save-excursion |
| 1287 | (let ((coding-system-for-write 'no-conversion)) |
| 1288 | (write-region archive-proper-file-start (point-max) |
| 1289 | (or file buffer-file-name) nil t) |
| 1290 | (set-buffer-modified-p nil)) |
| 1291 | t)) |
| 1292 | ;; ------------------------------------------------------------------------- |
| 1293 | ;;; Section: Marking and unmarking. |
| 1294 | |
| 1295 | (defun archive-flag-deleted (p &optional type) |
| 1296 | "In archive mode, mark this member to be deleted from the archive. |
| 1297 | With a prefix argument, mark that many files." |
| 1298 | (interactive "p") |
| 1299 | (or type (setq type ?D)) |
| 1300 | (beginning-of-line) |
| 1301 | (let ((sign (if (>= p 0) +1 -1)) |
| 1302 | (modified (buffer-modified-p)) |
| 1303 | (inhibit-read-only t)) |
| 1304 | (while (not (zerop p)) |
| 1305 | (if (archive-get-descr t) |
| 1306 | (progn |
| 1307 | (delete-char 1) |
| 1308 | (insert type))) |
| 1309 | (forward-line sign) |
| 1310 | (setq p (- p sign))) |
| 1311 | (restore-buffer-modified-p modified)) |
| 1312 | (archive-next-line 0)) |
| 1313 | |
| 1314 | (defun archive-unflag (p) |
| 1315 | "In archive mode, un-mark this member if it is marked to be deleted. |
| 1316 | With a prefix argument, un-mark that many files forward." |
| 1317 | (interactive "p") |
| 1318 | (archive-flag-deleted p ?\s)) |
| 1319 | |
| 1320 | (defun archive-unflag-backwards (p) |
| 1321 | "In archive mode, un-mark this member if it is marked to be deleted. |
| 1322 | With a prefix argument, un-mark that many members backward." |
| 1323 | (interactive "p") |
| 1324 | (archive-flag-deleted (- p) ?\s)) |
| 1325 | |
| 1326 | (defun archive-unmark-all-files () |
| 1327 | "Remove all marks." |
| 1328 | (interactive) |
| 1329 | (let ((modified (buffer-modified-p)) |
| 1330 | (inhibit-read-only t)) |
| 1331 | (save-excursion |
| 1332 | (goto-char archive-file-list-start) |
| 1333 | (while (< (point) archive-file-list-end) |
| 1334 | (or (= (following-char) ?\s) |
| 1335 | (progn (delete-char 1) (insert ?\s))) |
| 1336 | (forward-line 1))) |
| 1337 | (restore-buffer-modified-p modified))) |
| 1338 | |
| 1339 | (defun archive-mark (p) |
| 1340 | "In archive mode, mark this member for group operations. |
| 1341 | With a prefix argument, mark that many members. |
| 1342 | Use \\[archive-unmark-all-files] to remove all marks." |
| 1343 | (interactive "p") |
| 1344 | (archive-flag-deleted p ?*)) |
| 1345 | |
| 1346 | (defun archive-get-marked (mark &optional default) |
| 1347 | (let (files) |
| 1348 | (save-excursion |
| 1349 | (goto-char archive-file-list-start) |
| 1350 | (while (< (point) archive-file-list-end) |
| 1351 | (if (= (following-char) mark) |
| 1352 | (setq files (cons (archive-get-descr) files))) |
| 1353 | (forward-line 1))) |
| 1354 | (or (nreverse files) |
| 1355 | (and default |
| 1356 | (list (archive-get-descr)))))) |
| 1357 | ;; ------------------------------------------------------------------------- |
| 1358 | ;;; Section: Operate |
| 1359 | |
| 1360 | (defun archive-next-line (p) |
| 1361 | (interactive "p") |
| 1362 | (forward-line p) |
| 1363 | (or (eobp) |
| 1364 | (forward-char archive-file-name-indent))) |
| 1365 | |
| 1366 | (defun archive-previous-line (p) |
| 1367 | (interactive "p") |
| 1368 | (archive-next-line (- p))) |
| 1369 | |
| 1370 | (defun archive-chmod-entry (new-mode) |
| 1371 | "Change the protection bits associated with all marked or this member. |
| 1372 | The new protection bits can either be specified as an octal number or |
| 1373 | as a relative change like \"g+rw\" as for chmod(2)." |
| 1374 | (interactive "sNew mode (octal or relative): ") |
| 1375 | (if archive-read-only (error "Archive is read-only")) |
| 1376 | (let ((func (archive-name "chmod-entry"))) |
| 1377 | (if (fboundp func) |
| 1378 | (progn |
| 1379 | (funcall func new-mode (archive-get-marked ?* t)) |
| 1380 | (archive-resummarize)) |
| 1381 | (error "Setting mode bits is not supported for this archive type")))) |
| 1382 | |
| 1383 | (defun archive-chown-entry (new-uid) |
| 1384 | "Change the owner of all marked or this member." |
| 1385 | (interactive "nNew uid: ") |
| 1386 | (if archive-read-only (error "Archive is read-only")) |
| 1387 | (let ((func (archive-name "chown-entry"))) |
| 1388 | (if (fboundp func) |
| 1389 | (progn |
| 1390 | (funcall func new-uid (archive-get-marked ?* t)) |
| 1391 | (archive-resummarize)) |
| 1392 | (error "Setting owner is not supported for this archive type")))) |
| 1393 | |
| 1394 | (defun archive-chgrp-entry (new-gid) |
| 1395 | "Change the group of all marked or this member." |
| 1396 | (interactive "nNew gid: ") |
| 1397 | (if archive-read-only (error "Archive is read-only")) |
| 1398 | (let ((func (archive-name "chgrp-entry"))) |
| 1399 | (if (fboundp func) |
| 1400 | (progn |
| 1401 | (funcall func new-gid (archive-get-marked ?* t)) |
| 1402 | (archive-resummarize)) |
| 1403 | (error "Setting group is not supported for this archive type")))) |
| 1404 | |
| 1405 | (defun archive-expunge () |
| 1406 | "Do the flagged deletions." |
| 1407 | (interactive) |
| 1408 | (let (files) |
| 1409 | (save-excursion |
| 1410 | (goto-char archive-file-list-start) |
| 1411 | (while (< (point) archive-file-list-end) |
| 1412 | (if (= (following-char) ?D) |
| 1413 | (setq files (cons (aref (archive-get-descr) 0) files))) |
| 1414 | (forward-line 1))) |
| 1415 | (setq files (nreverse files)) |
| 1416 | (and files |
| 1417 | (or (not archive-read-only) |
| 1418 | (error "Archive is read-only")) |
| 1419 | (or (yes-or-no-p (format "Really delete %d member%s? " |
| 1420 | (length files) |
| 1421 | (if (null (cdr files)) "" "s"))) |
| 1422 | (error "Operation aborted")) |
| 1423 | (let ((archive (archive-maybe-copy (buffer-file-name))) |
| 1424 | (expunger (archive-name "expunge"))) |
| 1425 | (if (fboundp expunger) |
| 1426 | (funcall expunger archive files) |
| 1427 | (archive-*-expunge archive files (symbol-value expunger))) |
| 1428 | (archive-maybe-update nil) |
| 1429 | (if archive-remote |
| 1430 | (archive-resummarize) |
| 1431 | (revert-buffer)))))) |
| 1432 | |
| 1433 | (defun archive-*-expunge (archive files command) |
| 1434 | (apply 'call-process |
| 1435 | (car command) |
| 1436 | nil |
| 1437 | nil |
| 1438 | nil |
| 1439 | (append (cdr command) (cons archive files)))) |
| 1440 | |
| 1441 | (defun archive-rename-entry (newname) |
| 1442 | "Change the name associated with this entry in the archive file." |
| 1443 | (interactive "sNew name: ") |
| 1444 | (if archive-read-only (error "Archive is read-only")) |
| 1445 | (if (string= newname "") |
| 1446 | (error "Archive members may not be given empty names")) |
| 1447 | (let ((func (archive-name "rename-entry")) |
| 1448 | (descr (archive-get-descr))) |
| 1449 | (if (fboundp func) |
| 1450 | (progn |
| 1451 | (funcall func |
| 1452 | (encode-coding-string newname |
| 1453 | archive-file-name-coding-system) |
| 1454 | descr) |
| 1455 | (archive-resummarize)) |
| 1456 | (error "Renaming is not supported for this archive type")))) |
| 1457 | |
| 1458 | ;; Revert the buffer and recompute the dired-like listing. |
| 1459 | (defun archive-mode-revert (&optional _no-auto-save _no-confirm) |
| 1460 | (let ((no (archive-get-lineno))) |
| 1461 | (setq archive-files nil) |
| 1462 | (let ((revert-buffer-function nil) |
| 1463 | (coding-system-for-read 'no-conversion)) |
| 1464 | (revert-buffer t t)) |
| 1465 | (archive-mode) |
| 1466 | (goto-char archive-file-list-start) |
| 1467 | (archive-next-line no))) |
| 1468 | |
| 1469 | (defun archive-undo () |
| 1470 | "Undo in an archive buffer. |
| 1471 | This doesn't recover lost files, it just undoes changes in the buffer itself." |
| 1472 | (interactive) |
| 1473 | (let ((inhibit-read-only t)) |
| 1474 | (undo))) |
| 1475 | ;; ------------------------------------------------------------------------- |
| 1476 | ;;; Section: Arc Archives |
| 1477 | |
| 1478 | (defun archive-arc-summarize () |
| 1479 | (let ((p 1) |
| 1480 | (totalsize 0) |
| 1481 | (maxlen 8) |
| 1482 | files |
| 1483 | visual) |
| 1484 | (while (and (< (+ p 29) (point-max)) |
| 1485 | (= (byte-after p) ?\C-z) |
| 1486 | (> (byte-after (1+ p)) 0)) |
| 1487 | (let* ((namefld (buffer-substring (+ p 2) (+ p 2 13))) |
| 1488 | (fnlen (or (string-match "\0" namefld) 13)) |
| 1489 | (efnname (decode-coding-string (substring namefld 0 fnlen) |
| 1490 | archive-file-name-coding-system)) |
| 1491 | ;; Convert to float to avoid overflow for very large files. |
| 1492 | (csize (archive-l-e (+ p 15) 4 'float)) |
| 1493 | (moddate (archive-l-e (+ p 19) 2)) |
| 1494 | (modtime (archive-l-e (+ p 21) 2)) |
| 1495 | (ucsize (archive-l-e (+ p 25) 4 'float)) |
| 1496 | (fiddle (string= efnname (upcase efnname))) |
| 1497 | (ifnname (if fiddle (downcase efnname) efnname)) |
| 1498 | (text (format " %8.0f %-11s %-8s %s" |
| 1499 | ucsize |
| 1500 | (archive-dosdate moddate) |
| 1501 | (archive-dostime modtime) |
| 1502 | ifnname))) |
| 1503 | (setq maxlen (max maxlen fnlen) |
| 1504 | totalsize (+ totalsize ucsize) |
| 1505 | visual (cons (vector text |
| 1506 | (- (length text) (length ifnname)) |
| 1507 | (length text)) |
| 1508 | visual) |
| 1509 | files (cons (vector efnname ifnname fiddle nil (1- p)) |
| 1510 | files) |
| 1511 | ;; p needs to stay an integer, since we use it in char-after |
| 1512 | ;; above. Passing through `round' limits the compressed size |
| 1513 | ;; to most-positive-fixnum, but if the compressed size exceeds |
| 1514 | ;; that, we cannot visit the archive anyway. |
| 1515 | p (+ p 29 (round csize))))) |
| 1516 | (goto-char (point-min)) |
| 1517 | (let ((dash (concat "- -------- ----------- -------- " |
| 1518 | (make-string maxlen ?-) |
| 1519 | "\n"))) |
| 1520 | (insert "M Length Date Time File\n" |
| 1521 | dash) |
| 1522 | (archive-summarize-files (nreverse visual)) |
| 1523 | (insert dash |
| 1524 | (format " %8.0f %d file%s" |
| 1525 | totalsize |
| 1526 | (length files) |
| 1527 | (if (= 1 (length files)) "" "s")) |
| 1528 | "\n")) |
| 1529 | (apply 'vector (nreverse files)))) |
| 1530 | |
| 1531 | (defun archive-arc-rename-entry (newname descr) |
| 1532 | (if (string-match "[:\\\\/]" newname) |
| 1533 | (error "File names in arc files must not contain a directory component")) |
| 1534 | (if (> (length newname) 12) |
| 1535 | (error "File names in arc files are limited to 12 characters")) |
| 1536 | (let ((name (concat newname (substring "\0\0\0\0\0\0\0\0\0\0\0\0\0" |
| 1537 | (length newname)))) |
| 1538 | (inhibit-read-only t)) |
| 1539 | (save-restriction |
| 1540 | (save-excursion |
| 1541 | (widen) |
| 1542 | (goto-char (+ archive-proper-file-start (aref descr 4) 2)) |
| 1543 | (delete-char 13) |
| 1544 | (insert-unibyte name))))) |
| 1545 | ;; ------------------------------------------------------------------------- |
| 1546 | ;;; Section: Lzh Archives |
| 1547 | |
| 1548 | (defun archive-lzh-summarize (&optional start) |
| 1549 | (let ((p (or start 1)) ;; 1 for .lzh, something further on for .exe |
| 1550 | (totalsize 0) |
| 1551 | (maxlen 8) |
| 1552 | files |
| 1553 | visual) |
| 1554 | (while (progn (goto-char p) ;beginning of a base header. |
| 1555 | (looking-at "\\(.\\|\n\\)\\(.\\|\n\\)-l[hz][0-9ds]-")) |
| 1556 | (let* ((hsize (byte-after p)) ;size of the base header (level 0 and 1) |
| 1557 | ;; Convert to float to avoid overflow for very large files. |
| 1558 | (csize (archive-l-e (+ p 7) 4 'float)) ;size of a compressed file to follow (level 0 and 2), |
| 1559 | ;size of extended headers + the compressed file to follow (level 1). |
| 1560 | (ucsize (archive-l-e (+ p 11) 4 'float)) ;size of an uncompressed file. |
| 1561 | (time1 (archive-l-e (+ p 15) 2)) ;date/time (MSDOS format in level 0, 1 headers |
| 1562 | (time2 (archive-l-e (+ p 17) 2)) ;and UNIX format in level 2 header.) |
| 1563 | (hdrlvl (byte-after (+ p 20))) ;header level |
| 1564 | thsize ;total header size (base + extensions) |
| 1565 | fnlen efnname osid fiddle ifnname width p2 |
| 1566 | neh ;beginning of next extension header (level 1 and 2) |
| 1567 | mode modestr uid gid text dir prname |
| 1568 | gname uname modtime moddate) |
| 1569 | (if (= hdrlvl 3) (error "can't handle lzh level 3 header type")) |
| 1570 | (when (or (= hdrlvl 0) (= hdrlvl 1)) |
| 1571 | (setq fnlen (byte-after (+ p 21))) ;filename length |
| 1572 | (setq efnname (let ((str (buffer-substring (+ p 22) (+ p 22 fnlen)))) ;filename from offset 22 |
| 1573 | (decode-coding-string |
| 1574 | str archive-file-name-coding-system))) |
| 1575 | (setq p2 (+ p 22 fnlen))) ; |
| 1576 | (if (= hdrlvl 1) |
| 1577 | (setq neh (+ p2 3)) ;specific to level 1 header |
| 1578 | (if (= hdrlvl 2) |
| 1579 | (setq neh (+ p 24)))) ;specific to level 2 header |
| 1580 | (if neh ;if level 1 or 2 we expect extension headers to follow |
| 1581 | (let* ((ehsize (archive-l-e neh 2)) ;size of the extension header |
| 1582 | (etype (byte-after (+ neh 2)))) ;extension type |
| 1583 | (while (not (= ehsize 0)) |
| 1584 | (cond |
| 1585 | ((= etype 1) ;file name |
| 1586 | (let ((i (+ neh 3))) |
| 1587 | (while (< i (+ neh ehsize)) |
| 1588 | (setq efnname (concat efnname (char-to-string (byte-after i)))) |
| 1589 | (setq i (1+ i))))) |
| 1590 | ((= etype 2) ;directory name |
| 1591 | (let ((i (+ neh 3))) |
| 1592 | (while (< i (+ neh ehsize)) |
| 1593 | (setq dir (concat dir |
| 1594 | (if (= (byte-after i) |
| 1595 | 255) |
| 1596 | "/" |
| 1597 | (char-to-string |
| 1598 | (char-after i))))) |
| 1599 | (setq i (1+ i))))) |
| 1600 | ((= etype 80) ;Unix file permission |
| 1601 | (setq mode (archive-l-e (+ neh 3) 2))) |
| 1602 | ((= etype 81) ;UNIX file group/user ID |
| 1603 | (progn (setq uid (archive-l-e (+ neh 3) 2)) |
| 1604 | (setq gid (archive-l-e (+ neh 5) 2)))) |
| 1605 | ((= etype 82) ;UNIX file group name |
| 1606 | (let ((i (+ neh 3))) |
| 1607 | (while (< i (+ neh ehsize)) |
| 1608 | (setq gname (concat gname (char-to-string (char-after i)))) |
| 1609 | (setq i (1+ i))))) |
| 1610 | ((= etype 83) ;UNIX file user name |
| 1611 | (let ((i (+ neh 3))) |
| 1612 | (while (< i (+ neh ehsize)) |
| 1613 | (setq uname (concat uname (char-to-string (char-after i)))) |
| 1614 | (setq i (1+ i))))) |
| 1615 | ) |
| 1616 | (setq neh (+ neh ehsize)) |
| 1617 | (setq ehsize (archive-l-e neh 2)) |
| 1618 | (setq etype (byte-after (+ neh 2)))) |
| 1619 | ;;get total header size for level 1 and 2 headers |
| 1620 | (setq thsize (- neh p)))) |
| 1621 | (if (= hdrlvl 0) ;total header size |
| 1622 | (setq thsize hsize)) |
| 1623 | ;; OS ID field not present in level 0 header, use code 0 "generic" |
| 1624 | ;; in that case as per lha program header.c get_header() |
| 1625 | (setq osid (cond ((= hdrlvl 0) 0) |
| 1626 | ((= hdrlvl 1) (char-after (+ p 22 fnlen 2))) |
| 1627 | ((= hdrlvl 2) (char-after (+ p 23))))) |
| 1628 | ;; Filename fiddling must follow the lha program, otherwise the name |
| 1629 | ;; passed to "lha pq" etc won't match (which for an extract silently |
| 1630 | ;; results in no output). As of version 1.14i it goes from the OS ID, |
| 1631 | ;; - For 'M' MSDOS: msdos_to_unix_filename() downcases always, and |
| 1632 | ;; converts "\" to "/". |
| 1633 | ;; - For 0 generic: generic_to_unix_filename() downcases if there's |
| 1634 | ;; no lower case already present, and converts "\" to "/". |
| 1635 | ;; - For 'm' MacOS: macos_to_unix_filename() changes "/" to ":" and |
| 1636 | ;; ":" to "/" |
| 1637 | (setq fiddle (cond ((= ?M osid) t) |
| 1638 | ((= 0 osid) (string= efnname (upcase efnname))))) |
| 1639 | (setq ifnname (if fiddle (downcase efnname) efnname)) |
| 1640 | (setq prname (if dir (concat dir ifnname) ifnname)) |
| 1641 | (setq width (if prname (string-width prname) 0)) |
| 1642 | (setq modestr (if mode (archive-int-to-mode mode) "??????????")) |
| 1643 | (setq moddate (if (= hdrlvl 2) |
| 1644 | (archive-unixdate time1 time2) ;level 2 header in UNIX format |
| 1645 | (archive-dosdate time2))) ;level 0 and 1 header in DOS format |
| 1646 | (setq modtime (if (= hdrlvl 2) |
| 1647 | (archive-unixtime time1 time2) |
| 1648 | (archive-dostime time1))) |
| 1649 | (setq text (if archive-alternate-display |
| 1650 | (format " %8.0f %5S %5S %s" |
| 1651 | ucsize |
| 1652 | (or uid "?") |
| 1653 | (or gid "?") |
| 1654 | ifnname) |
| 1655 | (format " %10s %8.0f %-11s %-8s %s" |
| 1656 | modestr |
| 1657 | ucsize |
| 1658 | moddate |
| 1659 | modtime |
| 1660 | prname))) |
| 1661 | (setq maxlen (max maxlen width) |
| 1662 | totalsize (+ totalsize ucsize) |
| 1663 | visual (cons (vector text |
| 1664 | (- (length text) (length prname)) |
| 1665 | (length text)) |
| 1666 | visual) |
| 1667 | files (cons (vector prname ifnname fiddle mode (1- p)) |
| 1668 | files)) |
| 1669 | (cond ((= hdrlvl 1) |
| 1670 | ;; p needs to stay an integer, since we use it in goto-char |
| 1671 | ;; above. Passing through `round' limits the compressed size |
| 1672 | ;; to most-positive-fixnum, but if the compressed size exceeds |
| 1673 | ;; that, we cannot visit the archive anyway. |
| 1674 | (setq p (+ p hsize 2 (round csize)))) |
| 1675 | ((or (= hdrlvl 2) (= hdrlvl 0)) |
| 1676 | (setq p (+ p thsize 2 (round csize))))) |
| 1677 | )) |
| 1678 | (goto-char (point-min)) |
| 1679 | (let ((dash (concat (if archive-alternate-display |
| 1680 | "- -------- ----- ----- " |
| 1681 | "- ---------- -------- ----------- -------- ") |
| 1682 | (make-string maxlen ?-) |
| 1683 | "\n")) |
| 1684 | (header (if archive-alternate-display |
| 1685 | "M Length Uid Gid File\n" |
| 1686 | "M Filemode Length Date Time File\n")) |
| 1687 | (sumline (if archive-alternate-display |
| 1688 | " %8.0f %d file%s" |
| 1689 | " %8.0f %d file%s"))) |
| 1690 | (insert header dash) |
| 1691 | (archive-summarize-files (nreverse visual)) |
| 1692 | (insert dash |
| 1693 | (format sumline |
| 1694 | totalsize |
| 1695 | (length files) |
| 1696 | (if (= 1 (length files)) "" "s")) |
| 1697 | "\n")) |
| 1698 | (apply 'vector (nreverse files)))) |
| 1699 | |
| 1700 | (defconst archive-lzh-alternate-display t) |
| 1701 | |
| 1702 | (defun archive-lzh-extract (archive name) |
| 1703 | (archive-extract-by-stdout archive name archive-lzh-extract)) |
| 1704 | |
| 1705 | (defun archive-lzh-resum (p count) |
| 1706 | (let ((sum 0)) |
| 1707 | (while (> count 0) |
| 1708 | (setq count (1- count) |
| 1709 | sum (+ sum (byte-after p)) |
| 1710 | p (1+ p))) |
| 1711 | (logand sum 255))) |
| 1712 | |
| 1713 | (defun archive-lzh-rename-entry (newname descr) |
| 1714 | (save-restriction |
| 1715 | (save-excursion |
| 1716 | (widen) |
| 1717 | (let* ((p (+ archive-proper-file-start (aref descr 4))) |
| 1718 | (oldhsize (byte-after p)) |
| 1719 | (oldfnlen (byte-after (+ p 21))) |
| 1720 | (newfnlen (length newname)) |
| 1721 | (newhsize (+ oldhsize newfnlen (- oldfnlen))) |
| 1722 | (inhibit-read-only t)) |
| 1723 | (if (> newhsize 255) |
| 1724 | (error "The file name is too long")) |
| 1725 | (goto-char (+ p 21)) |
| 1726 | (delete-char (1+ oldfnlen)) |
| 1727 | (insert-unibyte newfnlen newname) |
| 1728 | (goto-char p) |
| 1729 | (delete-char 2) |
| 1730 | (insert-unibyte newhsize (archive-lzh-resum p newhsize)))))) |
| 1731 | |
| 1732 | (defun archive-lzh-ogm (newval files errtxt ofs) |
| 1733 | (save-excursion |
| 1734 | (save-restriction |
| 1735 | (widen) |
| 1736 | (dolist (fil files) |
| 1737 | (let* ((p (+ archive-proper-file-start (aref fil 4))) |
| 1738 | (hsize (byte-after p)) |
| 1739 | (fnlen (byte-after (+ p 21))) |
| 1740 | (p2 (+ p 22 fnlen)) |
| 1741 | (creator (if (>= (- hsize fnlen) 24) (byte-after (+ p2 2)) 0)) |
| 1742 | (inhibit-read-only t)) |
| 1743 | (if (= creator ?U) |
| 1744 | (progn |
| 1745 | (or (numberp newval) |
| 1746 | (setq newval (funcall newval (archive-l-e (+ p2 ofs) 2)))) |
| 1747 | (goto-char (+ p2 ofs)) |
| 1748 | (delete-char 2) |
| 1749 | (insert-unibyte (logand newval 255) (lsh newval -8)) |
| 1750 | (goto-char (1+ p)) |
| 1751 | (delete-char 1) |
| 1752 | (insert-unibyte (archive-lzh-resum (1+ p) hsize))) |
| 1753 | (message "Member %s does not have %s field" |
| 1754 | (aref fil 1) errtxt))))))) |
| 1755 | |
| 1756 | (defun archive-lzh-chown-entry (newuid files) |
| 1757 | (archive-lzh-ogm newuid files "an uid" 10)) |
| 1758 | |
| 1759 | (defun archive-lzh-chgrp-entry (newgid files) |
| 1760 | (archive-lzh-ogm newgid files "a gid" 12)) |
| 1761 | |
| 1762 | (defun archive-lzh-chmod-entry (newmode files) |
| 1763 | (archive-lzh-ogm |
| 1764 | ;; This should work even though newmode will be dynamically accessed. |
| 1765 | (lambda (old) (archive-calc-mode old newmode t)) |
| 1766 | files "a unix-style mode" 8)) |
| 1767 | |
| 1768 | ;; ------------------------------------------------------------------------- |
| 1769 | ;;; Section: Lzh Self-Extracting .exe Archives |
| 1770 | ;; |
| 1771 | ;; No support for modifying these files. It looks like the lha for unix |
| 1772 | ;; program (as of version 1.14i) can't create or retain the DOS exe part. |
| 1773 | ;; If you do an "lha a" on a .exe for instance it renames and writes to a |
| 1774 | ;; plain .lzh. |
| 1775 | |
| 1776 | (defun archive-lzh-exe-summarize () |
| 1777 | "Summarize the contents of an LZH self-extracting exe, for `archive-mode'." |
| 1778 | |
| 1779 | ;; Skip the initial executable code part and apply archive-lzh-summarize |
| 1780 | ;; to the archive part proper. The "-lh5-" etc regexp here for the start |
| 1781 | ;; is the same as in archive-find-type. |
| 1782 | ;; |
| 1783 | ;; The lha program (version 1.14i) does this in skip_msdos_sfx1_code() by |
| 1784 | ;; a similar scan. It looks for "..-l..-" plus for level 0 or 1 a test of |
| 1785 | ;; the header checksum, or level 2 a test of the "attribute" and size. |
| 1786 | ;; |
| 1787 | (re-search-forward "..-l[hz][0-9ds]-" nil) |
| 1788 | (archive-lzh-summarize (match-beginning 0))) |
| 1789 | |
| 1790 | ;; `archive-lzh-extract' runs "lha pq", and that works for .exe as well as |
| 1791 | ;; .lzh files |
| 1792 | (defalias 'archive-lzh-exe-extract 'archive-lzh-extract |
| 1793 | "Extract a member from an LZH self-extracting exe, for `archive-mode'.") |
| 1794 | |
| 1795 | ;; ------------------------------------------------------------------------- |
| 1796 | ;;; Section: Zip Archives |
| 1797 | |
| 1798 | (defun archive-zip-summarize () |
| 1799 | (goto-char (- (point-max) (- 22 18))) |
| 1800 | (search-backward-regexp "[P]K\005\006") |
| 1801 | (let ((p (+ (point-min) (archive-l-e (+ (point) 16) 4))) |
| 1802 | (maxlen 8) |
| 1803 | (totalsize 0) |
| 1804 | files |
| 1805 | visual) |
| 1806 | (while (string= "PK\001\002" (buffer-substring p (+ p 4))) |
| 1807 | (let* ((creator (byte-after (+ p 5))) |
| 1808 | ;; (method (archive-l-e (+ p 10) 2)) |
| 1809 | (modtime (archive-l-e (+ p 12) 2)) |
| 1810 | (moddate (archive-l-e (+ p 14) 2)) |
| 1811 | ;; Convert to float to avoid overflow for very large files. |
| 1812 | (ucsize (archive-l-e (+ p 24) 4 'float)) |
| 1813 | (fnlen (archive-l-e (+ p 28) 2)) |
| 1814 | (exlen (archive-l-e (+ p 30) 2)) |
| 1815 | (fclen (archive-l-e (+ p 32) 2)) |
| 1816 | (lheader (archive-l-e (+ p 42) 4)) |
| 1817 | (efnname (let ((str (buffer-substring (+ p 46) (+ p 46 fnlen)))) |
| 1818 | (decode-coding-string |
| 1819 | str archive-file-name-coding-system))) |
| 1820 | (isdir (and (= ucsize 0) |
| 1821 | (string= (file-name-nondirectory efnname) ""))) |
| 1822 | (mode (cond ((memq creator '(2 3)) ; Unix |
| 1823 | (archive-l-e (+ p 40) 2)) |
| 1824 | ((memq creator '(0 5 6 7 10 11 15)) ; Dos etc. |
| 1825 | (logior ?\444 |
| 1826 | (if isdir (logior 16384 ?\111) 0) |
| 1827 | (if (zerop |
| 1828 | (logand 1 (byte-after (+ p 38)))) |
| 1829 | ?\222 0))) |
| 1830 | (t nil))) |
| 1831 | (modestr (if mode (archive-int-to-mode mode) "??????????")) |
| 1832 | (fiddle (and archive-zip-case-fiddle |
| 1833 | (not (not (memq creator '(0 2 4 5 9)))) |
| 1834 | (string= (upcase efnname) efnname))) |
| 1835 | (ifnname (if fiddle (downcase efnname) efnname)) |
| 1836 | (width (string-width ifnname)) |
| 1837 | (text (format " %10s %8.0f %-11s %-8s %s" |
| 1838 | modestr |
| 1839 | ucsize |
| 1840 | (archive-dosdate moddate) |
| 1841 | (archive-dostime modtime) |
| 1842 | ifnname))) |
| 1843 | (setq maxlen (max maxlen width) |
| 1844 | totalsize (+ totalsize ucsize) |
| 1845 | visual (cons (vector text |
| 1846 | (- (length text) (length ifnname)) |
| 1847 | (length text)) |
| 1848 | visual) |
| 1849 | files (cons (if isdir |
| 1850 | nil |
| 1851 | (vector efnname ifnname fiddle mode |
| 1852 | (list (1- p) lheader))) |
| 1853 | files) |
| 1854 | p (+ p 46 fnlen exlen fclen)))) |
| 1855 | (goto-char (point-min)) |
| 1856 | (let ((dash (concat "- ---------- -------- ----------- -------- " |
| 1857 | (make-string maxlen ?-) |
| 1858 | "\n"))) |
| 1859 | (insert "M Filemode Length Date Time File\n" |
| 1860 | dash) |
| 1861 | (archive-summarize-files (nreverse visual)) |
| 1862 | (insert dash |
| 1863 | (format " %8.0f %d file%s" |
| 1864 | totalsize |
| 1865 | (length files) |
| 1866 | (if (= 1 (length files)) "" "s")) |
| 1867 | "\n")) |
| 1868 | (apply 'vector (nreverse files)))) |
| 1869 | |
| 1870 | (defun archive-zip-extract (archive name) |
| 1871 | (cond |
| 1872 | ((member-ignore-case (car archive-zip-extract) '("pkunzip" "pkzip")) |
| 1873 | (archive-*-extract archive name archive-zip-extract)) |
| 1874 | ((equal (car archive-zip-extract) archive-7z-program) |
| 1875 | (let ((archive-7z-extract archive-zip-extract)) |
| 1876 | (archive-7z-extract archive name))) |
| 1877 | (t |
| 1878 | (archive-extract-by-stdout |
| 1879 | archive |
| 1880 | ;; unzip expands wildcards in NAME, so we need to quote it. But |
| 1881 | ;; not on DOS/Windows, since that fails extraction on those |
| 1882 | ;; systems (unless w32-quote-process-args is nil), and file names |
| 1883 | ;; with wildcards in zip archives don't work there anyway. |
| 1884 | ;; FIXME: Does pkunzip need similar treatment? |
| 1885 | (if (and (or (not (memq system-type '(windows-nt ms-dos))) |
| 1886 | (and (boundp 'w32-quote-process-args) |
| 1887 | (null w32-quote-process-args))) |
| 1888 | (equal (car archive-zip-extract) "unzip")) |
| 1889 | (shell-quote-argument name) |
| 1890 | name) |
| 1891 | archive-zip-extract)))) |
| 1892 | |
| 1893 | (defun archive-zip-write-file-member (archive descr) |
| 1894 | (archive-*-write-file-member |
| 1895 | archive |
| 1896 | descr |
| 1897 | (if (aref descr 2) archive-zip-update-case archive-zip-update))) |
| 1898 | |
| 1899 | (defun archive-zip-chmod-entry (newmode files) |
| 1900 | (save-restriction |
| 1901 | (save-excursion |
| 1902 | (widen) |
| 1903 | (dolist (fil files) |
| 1904 | (let* ((p (+ archive-proper-file-start (car (aref fil 4)))) |
| 1905 | (creator (byte-after (+ p 5))) |
| 1906 | (oldmode (aref fil 3)) |
| 1907 | (newval (archive-calc-mode oldmode newmode t)) |
| 1908 | (inhibit-read-only t)) |
| 1909 | (cond ((memq creator '(2 3)) ; Unix |
| 1910 | (goto-char (+ p 40)) |
| 1911 | (delete-char 2) |
| 1912 | (insert-unibyte (logand newval 255) (lsh newval -8))) |
| 1913 | ((memq creator '(0 5 6 7 10 11 15)) ; Dos etc. |
| 1914 | (goto-char (+ p 38)) |
| 1915 | (insert-unibyte (logior (logand (byte-after (point)) 254) |
| 1916 | (logand (logxor 1 (lsh newval -7)) 1))) |
| 1917 | (delete-char 1)) |
| 1918 | (t (message "Don't know how to change mode for this member")))) |
| 1919 | )))) |
| 1920 | ;; ------------------------------------------------------------------------- |
| 1921 | ;;; Section: Zoo Archives |
| 1922 | |
| 1923 | (defun archive-zoo-summarize () |
| 1924 | (let ((p (1+ (archive-l-e 25 4))) |
| 1925 | (maxlen 8) |
| 1926 | (totalsize 0) |
| 1927 | files |
| 1928 | visual) |
| 1929 | (while (and (string= "\334\247\304\375" (buffer-substring p (+ p 4))) |
| 1930 | (> (archive-l-e (+ p 6) 4) 0)) |
| 1931 | (let* ((next (1+ (archive-l-e (+ p 6) 4))) |
| 1932 | (moddate (archive-l-e (+ p 14) 2)) |
| 1933 | (modtime (archive-l-e (+ p 16) 2)) |
| 1934 | ;; Convert to float to avoid overflow for very large files. |
| 1935 | (ucsize (archive-l-e (+ p 20) 4 'float)) |
| 1936 | (namefld (buffer-substring (+ p 38) (+ p 38 13))) |
| 1937 | (dirtype (byte-after (+ p 4))) |
| 1938 | (lfnlen (if (= dirtype 2) (byte-after (+ p 56)) 0)) |
| 1939 | (ldirlen (if (= dirtype 2) (byte-after (+ p 57)) 0)) |
| 1940 | (fnlen (or (string-match "\0" namefld) 13)) |
| 1941 | (efnname (let ((str |
| 1942 | (concat |
| 1943 | (if (> ldirlen 0) |
| 1944 | (concat (buffer-substring |
| 1945 | (+ p 58 lfnlen) |
| 1946 | (+ p 58 lfnlen ldirlen -1)) |
| 1947 | "/") |
| 1948 | "") |
| 1949 | (if (> lfnlen 0) |
| 1950 | (buffer-substring (+ p 58) |
| 1951 | (+ p 58 lfnlen -1)) |
| 1952 | (substring namefld 0 fnlen))))) |
| 1953 | (decode-coding-string |
| 1954 | str archive-file-name-coding-system))) |
| 1955 | (fiddle (and (= lfnlen 0) (string= efnname (upcase efnname)))) |
| 1956 | (ifnname (if fiddle (downcase efnname) efnname)) |
| 1957 | (width (string-width ifnname)) |
| 1958 | (text (format " %8.0f %-11s %-8s %s" |
| 1959 | ucsize |
| 1960 | (archive-dosdate moddate) |
| 1961 | (archive-dostime modtime) |
| 1962 | ifnname))) |
| 1963 | (setq maxlen (max maxlen width) |
| 1964 | totalsize (+ totalsize ucsize) |
| 1965 | visual (cons (vector text |
| 1966 | (- (length text) (length ifnname)) |
| 1967 | (length text)) |
| 1968 | visual) |
| 1969 | files (cons (vector efnname ifnname fiddle nil (1- p)) |
| 1970 | files) |
| 1971 | p next))) |
| 1972 | (goto-char (point-min)) |
| 1973 | (let ((dash (concat "- -------- ----------- -------- " |
| 1974 | (make-string maxlen ?-) |
| 1975 | "\n"))) |
| 1976 | (insert "M Length Date Time File\n" |
| 1977 | dash) |
| 1978 | (archive-summarize-files (nreverse visual)) |
| 1979 | (insert dash |
| 1980 | (format " %8.0f %d file%s" |
| 1981 | totalsize |
| 1982 | (length files) |
| 1983 | (if (= 1 (length files)) "" "s")) |
| 1984 | "\n")) |
| 1985 | (apply 'vector (nreverse files)))) |
| 1986 | |
| 1987 | (defun archive-zoo-extract (archive name) |
| 1988 | (archive-extract-by-stdout archive name archive-zoo-extract)) |
| 1989 | |
| 1990 | ;; ------------------------------------------------------------------------- |
| 1991 | ;;; Section: Rar Archives |
| 1992 | |
| 1993 | (defun archive-rar-summarize (&optional file) |
| 1994 | ;; File is used internally for `archive-rar-exe-summarize'. |
| 1995 | (unless file (setq file buffer-file-name)) |
| 1996 | (let* ((copy (file-local-copy file)) |
| 1997 | (maxname 10) |
| 1998 | (maxsize 5) |
| 1999 | (files ())) |
| 2000 | (with-temp-buffer |
| 2001 | (call-process "unrar-free" nil t nil "--list" (or file copy)) |
| 2002 | (if copy (delete-file copy)) |
| 2003 | (goto-char (point-min)) |
| 2004 | (re-search-forward "^-+\n") |
| 2005 | (while (looking-at (concat " \\(.*\\)\n" ;Name. |
| 2006 | ;; Size ; Packed. |
| 2007 | " +\\([0-9]+\\) +[0-9]+" |
| 2008 | ;; Ratio ; Date' |
| 2009 | " +\\([0-9%]+\\) +\\([-0-9]+\\)" |
| 2010 | ;; Time ; Attr. |
| 2011 | " +\\([0-9:]+\\) +[^ \n]\\{6,10\\}" |
| 2012 | ;; CRC; Meth ; Var. |
| 2013 | " +[0-9A-F]+ +[^ \n]+ +[0-9.]+\n")) |
| 2014 | (goto-char (match-end 0)) |
| 2015 | (let ((name (match-string 1)) |
| 2016 | (size (match-string 2))) |
| 2017 | (if (> (length name) maxname) (setq maxname (length name))) |
| 2018 | (if (> (length size) maxsize) (setq maxsize (length size))) |
| 2019 | (push (vector name name nil nil |
| 2020 | ;; Size, Ratio. |
| 2021 | size (match-string 3) |
| 2022 | ;; Date, Time. |
| 2023 | (match-string 4) (match-string 5)) |
| 2024 | files)))) |
| 2025 | (setq files (nreverse files)) |
| 2026 | (goto-char (point-min)) |
| 2027 | (let* ((format (format " %%s %%s %%%ds %%5s %%s" maxsize)) |
| 2028 | (sep (format format "--------" "-----" (make-string maxsize ?-) |
| 2029 | "-----" "")) |
| 2030 | (column (length sep))) |
| 2031 | (insert (format format " Date " "Time " "Size " "Ratio" " Filename") "\n") |
| 2032 | (insert sep (make-string maxname ?-) "\n") |
| 2033 | (archive-summarize-files (mapcar (lambda (desc) |
| 2034 | (let ((text |
| 2035 | (format format |
| 2036 | (aref desc 6) |
| 2037 | (aref desc 7) |
| 2038 | (aref desc 4) |
| 2039 | (aref desc 5) |
| 2040 | (aref desc 1)))) |
| 2041 | (vector text |
| 2042 | column |
| 2043 | (length text)))) |
| 2044 | files)) |
| 2045 | (insert sep (make-string maxname ?-) "\n") |
| 2046 | (apply 'vector files)))) |
| 2047 | |
| 2048 | (defun archive-rar-extract (archive name) |
| 2049 | ;; unrar-free seems to have no way to extract to stdout or even to a file. |
| 2050 | (if (file-name-absolute-p name) |
| 2051 | ;; The code below assumes the name is relative and may do undesirable |
| 2052 | ;; things otherwise. |
| 2053 | (error "Can't extract files with non-relative names") |
| 2054 | (archive-extract-by-file archive name '("unrar-free" "--extract") "All OK"))) |
| 2055 | |
| 2056 | ;;; Section: Rar self-extracting .exe archives. |
| 2057 | |
| 2058 | (defun archive-rar-exe-summarize () |
| 2059 | (let ((tmpfile (make-temp-file "rarexe"))) |
| 2060 | (unwind-protect |
| 2061 | (progn |
| 2062 | (goto-char (point-min)) |
| 2063 | (re-search-forward "Rar!") |
| 2064 | (write-region (match-beginning 0) (point-max) tmpfile) |
| 2065 | (archive-rar-summarize tmpfile)) |
| 2066 | (delete-file tmpfile)))) |
| 2067 | |
| 2068 | (defun archive-rar-exe-extract (archive name) |
| 2069 | (let* ((tmpfile (make-temp-file "rarexe")) |
| 2070 | (buf (find-buffer-visiting archive)) |
| 2071 | (tmpbuf (unless buf (generate-new-buffer " *rar-exe*")))) |
| 2072 | (unwind-protect |
| 2073 | (progn |
| 2074 | (with-current-buffer (or buf tmpbuf) |
| 2075 | (save-excursion |
| 2076 | (save-restriction |
| 2077 | (if buf |
| 2078 | ;; point-max unwidened is assumed to be the end of the |
| 2079 | ;; summary text and the beginning of the actual file data. |
| 2080 | (progn (goto-char (point-max)) (widen)) |
| 2081 | (insert-file-contents-literally archive) |
| 2082 | (goto-char (point-min))) |
| 2083 | (re-search-forward "Rar!") |
| 2084 | (write-region (match-beginning 0) (point-max) tmpfile)))) |
| 2085 | (archive-rar-extract tmpfile name)) |
| 2086 | (if tmpbuf (kill-buffer tmpbuf)) |
| 2087 | (delete-file tmpfile)))) |
| 2088 | |
| 2089 | ;; ------------------------------------------------------------------------- |
| 2090 | ;;; Section: 7z Archives |
| 2091 | |
| 2092 | (defun archive-7z-summarize () |
| 2093 | (let ((maxname 10) |
| 2094 | (maxsize 5) |
| 2095 | (file buffer-file-name) |
| 2096 | (files ())) |
| 2097 | (with-temp-buffer |
| 2098 | (call-process archive-7z-program nil t nil "l" "-slt" file) |
| 2099 | (goto-char (point-min)) |
| 2100 | ;; Four dashes start the meta info section that should be skipped. |
| 2101 | ;; Archive members start with more than four dashes. |
| 2102 | (re-search-forward "^-----+\n") |
| 2103 | (while (re-search-forward "^Path = \\(.*\\)\n" nil t) |
| 2104 | (goto-char (match-end 0)) |
| 2105 | (let ((name (match-string 1)) |
| 2106 | (size (save-excursion |
| 2107 | (and (re-search-forward "^Size = \\(.*\\)\n") |
| 2108 | (match-string 1)))) |
| 2109 | (time (save-excursion |
| 2110 | (and (re-search-forward "^Modified = \\(.*\\)\n") |
| 2111 | (match-string 1))))) |
| 2112 | (if (> (length name) maxname) (setq maxname (length name))) |
| 2113 | (if (> (length size) maxsize) (setq maxsize (length size))) |
| 2114 | (push (vector name name nil nil time nil nil size) |
| 2115 | files)))) |
| 2116 | (setq files (nreverse files)) |
| 2117 | (goto-char (point-min)) |
| 2118 | (let* ((format (format " %%%ds %%s %%s" maxsize)) |
| 2119 | (sep (format format (make-string maxsize ?-) "-------------------" "")) |
| 2120 | (column (length sep))) |
| 2121 | (insert (format format "Size " "Date Time " " Filename") "\n") |
| 2122 | (insert sep (make-string maxname ?-) "\n") |
| 2123 | (archive-summarize-files (mapcar (lambda (desc) |
| 2124 | (let ((text |
| 2125 | (format format |
| 2126 | (aref desc 7) |
| 2127 | (aref desc 4) |
| 2128 | (aref desc 1)))) |
| 2129 | (vector text |
| 2130 | column |
| 2131 | (length text)))) |
| 2132 | files)) |
| 2133 | (insert sep (make-string maxname ?-) "\n") |
| 2134 | (apply 'vector files)))) |
| 2135 | |
| 2136 | (defun archive-7z-extract (archive name) |
| 2137 | ;; 7z doesn't provide a `quiet' option to suppress non-essential |
| 2138 | ;; stderr messages. So redirect stderr to a temp file and display it |
| 2139 | ;; in the echo area when it contains no message indicating success. |
| 2140 | (archive-extract-by-stdout |
| 2141 | archive name archive-7z-extract "Everything is Ok")) |
| 2142 | |
| 2143 | (defun archive-7z-write-file-member (archive descr) |
| 2144 | (archive-*-write-file-member |
| 2145 | archive |
| 2146 | descr |
| 2147 | archive-7z-update)) |
| 2148 | |
| 2149 | ;; ------------------------------------------------------------------------- |
| 2150 | ;;; Section `ar' archives. |
| 2151 | |
| 2152 | ;; TODO: we currently only handle the basic format of ar archives, |
| 2153 | ;; not the GNU nor the BSD extensions. As it turns out, this is sufficient |
| 2154 | ;; for .deb packages. |
| 2155 | |
| 2156 | (autoload 'tar-grind-file-mode "tar-mode") |
| 2157 | |
| 2158 | (defconst archive-ar-file-header-re |
| 2159 | "\\(.\\{16\\}\\)\\([ 0-9]\\{12\\}\\)\\([ 0-9]\\{6\\}\\)\\([ 0-9]\\{6\\}\\)\\([ 0-7]\\{8\\}\\)\\([ 0-9]\\{10\\}\\)`\n") |
| 2160 | |
| 2161 | (defun archive-ar-summarize () |
| 2162 | ;; File is used internally for `archive-rar-exe-summarize'. |
| 2163 | (let* ((maxname 10) |
| 2164 | (maxtime 16) |
| 2165 | (maxuser 5) |
| 2166 | (maxgroup 5) |
| 2167 | (maxmode 8) |
| 2168 | (maxsize 5) |
| 2169 | (files ())) |
| 2170 | (goto-char (point-min)) |
| 2171 | (search-forward "!<arch>\n") |
| 2172 | (while (looking-at archive-ar-file-header-re) |
| 2173 | (let ((name (match-string 1)) |
| 2174 | extname |
| 2175 | ;; Emacs will automatically use float here because those |
| 2176 | ;; timestamps don't fit in our ints. |
| 2177 | (time (string-to-number (match-string 2))) |
| 2178 | (user (match-string 3)) |
| 2179 | (group (match-string 4)) |
| 2180 | (mode (string-to-number (match-string 5) 8)) |
| 2181 | (size (string-to-number (match-string 6)))) |
| 2182 | ;; Move to the beginning of the data. |
| 2183 | (goto-char (match-end 0)) |
| 2184 | (setq time |
| 2185 | (format-time-string |
| 2186 | "%Y-%m-%d %H:%M" |
| 2187 | (let ((high (truncate (/ time 65536)))) |
| 2188 | (list high (truncate (- time (* 65536.0 high))))))) |
| 2189 | (setq extname |
| 2190 | (cond ((equal name "// ") |
| 2191 | (propertize ".<ExtNamesTable>." 'face 'italic)) |
| 2192 | ((equal name "/ ") |
| 2193 | (propertize ".<LookupTable>." 'face 'italic)) |
| 2194 | ((string-match "/? *\\'" name) |
| 2195 | (substring name 0 (match-beginning 0))))) |
| 2196 | (setq user (substring user 0 (string-match " +\\'" user))) |
| 2197 | (setq group (substring group 0 (string-match " +\\'" group))) |
| 2198 | (setq mode (tar-grind-file-mode mode)) |
| 2199 | ;; Move to the end of the data. |
| 2200 | (forward-char size) (if (eq ?\n (char-after)) (forward-char 1)) |
| 2201 | (setq size (number-to-string size)) |
| 2202 | (if (> (length name) maxname) (setq maxname (length name))) |
| 2203 | (if (> (length time) maxtime) (setq maxtime (length time))) |
| 2204 | (if (> (length user) maxuser) (setq maxuser (length user))) |
| 2205 | (if (> (length group) maxgroup) (setq maxgroup (length group))) |
| 2206 | (if (> (length mode) maxmode) (setq maxmode (length mode))) |
| 2207 | (if (> (length size) maxsize) (setq maxsize (length size))) |
| 2208 | (push (vector name extname nil mode |
| 2209 | time user group size) |
| 2210 | files))) |
| 2211 | (setq files (nreverse files)) |
| 2212 | (goto-char (point-min)) |
| 2213 | (let* ((format (format "%%%ds %%%ds/%%-%ds %%%ds %%%ds %%s" |
| 2214 | maxmode maxuser maxgroup maxsize maxtime)) |
| 2215 | (sep (format format (make-string maxmode ?-) |
| 2216 | (make-string maxuser ?-) |
| 2217 | (make-string maxgroup ?-) |
| 2218 | (make-string maxsize ?-) |
| 2219 | (make-string maxtime ?-) "")) |
| 2220 | (column (length sep))) |
| 2221 | (insert (format format " Mode " "User" "Group" " Size " |
| 2222 | " Date " "Filename") |
| 2223 | "\n") |
| 2224 | (insert sep (make-string maxname ?-) "\n") |
| 2225 | (archive-summarize-files (mapcar (lambda (desc) |
| 2226 | (let ((text |
| 2227 | (format format |
| 2228 | (aref desc 3) |
| 2229 | (aref desc 5) |
| 2230 | (aref desc 6) |
| 2231 | (aref desc 7) |
| 2232 | (aref desc 4) |
| 2233 | (aref desc 1)))) |
| 2234 | (vector text |
| 2235 | column |
| 2236 | (length text)))) |
| 2237 | files)) |
| 2238 | (insert sep (make-string maxname ?-) "\n") |
| 2239 | (apply 'vector files)))) |
| 2240 | |
| 2241 | (defun archive-ar-extract (archive name) |
| 2242 | (let ((destbuf (current-buffer)) |
| 2243 | (archivebuf (find-file-noselect archive)) |
| 2244 | (from nil) size) |
| 2245 | (with-current-buffer archivebuf |
| 2246 | (save-restriction |
| 2247 | ;; We may be in archive-mode or not, so either with or without |
| 2248 | ;; narrowing and with or without a prepended summary. |
| 2249 | (save-excursion |
| 2250 | (widen) |
| 2251 | (search-forward "!<arch>\n") |
| 2252 | (while (and (not from) (looking-at archive-ar-file-header-re)) |
| 2253 | (let ((this (match-string 1))) |
| 2254 | (setq size (string-to-number (match-string 6))) |
| 2255 | (goto-char (match-end 0)) |
| 2256 | (if (equal name this) |
| 2257 | (setq from (point)) |
| 2258 | ;; Move to the end of the data. |
| 2259 | (forward-char size) (if (eq ?\n (char-after)) (forward-char 1))))) |
| 2260 | (when from |
| 2261 | (set-buffer-multibyte nil) |
| 2262 | (with-current-buffer destbuf |
| 2263 | ;; Do it within the `widen'. |
| 2264 | (insert-buffer-substring archivebuf from (+ from size))) |
| 2265 | (set-buffer-multibyte 'to) |
| 2266 | ;; Inform the caller that the call succeeded. |
| 2267 | t)))))) |
| 2268 | |
| 2269 | ;; ------------------------------------------------------------------------- |
| 2270 | ;; This line was a mistake; it is kept now for compatibility. |
| 2271 | ;; rms 15 Oct 98 |
| 2272 | (provide 'archive-mode) |
| 2273 | |
| 2274 | (provide 'arc-mode) |
| 2275 | |
| 2276 | ;;; arc-mode.el ends here |