;; ARCHIVE TYPES: Currently only the archives below are handled, but the
;; structure for handling just about anything is in place.
;;
-;; Arc Lzh Zip Zoo
-;; --------------------------------
-;; View listing Intern Intern Intern Intern
-;; Extract member Y Y Y Y
-;; Save changed member Y Y Y Y
-;; Add new member N N N N
-;; Delete member Y Y Y Y
-;; Rename member Y Y N N
-;; Chmod - Y Y -
-;; Chown - Y - -
-;; Chgrp - Y - -
+;; Arc Lzh Zip Zoo Rar
+;; ----------------------------------------
+;; View listing Intern Intern Intern Intern Y
+;; Extract member Y Y Y Y Y
+;; Save changed member Y Y Y Y N
+;; Add new member N N N N N
+;; Delete member Y Y Y Y N
+;; Rename member Y Y N N N
+;; Chmod - Y Y - N
+;; Chown - Y - - N
+;; Chgrp - Y - - N
;;
;; Special thanks to Bill Brodie <wbrodie@panix.com> for very useful tips
;; on the first released version of this package.
;;; Code:
;; -------------------------------------------------------------------------
-;; Section: Configuration.
+;;; Section: Configuration.
(defgroup archive nil
"Simple editing of archives."
(string :format "%v")))
:group 'archive-zoo)
;; -------------------------------------------------------------------------
-;; Section: Variables
+;;; Section: Variables
(defvar archive-subtype nil "Symbol describing archive type.")
(defvar archive-file-list-start nil "Position of first contents line.")
(make-variable-buffer-local 'archive-files)
;; -------------------------------------------------------------------------
-;; Section: Support functions.
+;;; Section: Support functions.
(defsubst archive-name (suffix)
(intern (concat "archive-" (symbol-name archive-subtype) "-" suffix)))
(if (not noerror)
(error "Line does not describe a member of the archive")))))
;; -------------------------------------------------------------------------
-;; Section: the mode definition
+;;; Section: the mode definition
;;;###autoload
(defun archive-mode (&optional force)
;; Have seen capital "LHA's", and file has lower case "LHa's" too.
;; Note this regexp is also in archive-exe-p.
((looking-at "MZ\\(.\\|\n\\)\\{34\\}LH[aA]'s SFX ") 'lzh-exe)
+ ((looking-at "Rar!") 'rar)
(t (error "Buffer format not recognized")))))
;; -------------------------------------------------------------------------
+
+(defun archive-desummarize ()
+ (let ((inhibit-read-only t)
+ (modified (buffer-modified-p)))
+ (widen)
+ (delete-region (point-min) archive-proper-file-start)
+ (restore-buffer-modified-p modified)))
+
+
(defun archive-summarize (&optional shut-up)
"Parse the contents of the archive file in the current buffer.
Place a dired-like listing on the front;
(widen)
(set-buffer-multibyte nil)
(let ((inhibit-read-only t))
+ (setq archive-proper-file-start (copy-marker (point-min) t))
+ (set (make-local-variable 'change-major-mode-hook) 'archive-desummarize)
(or shut-up
(message "Parsing archive file..."))
(buffer-disable-undo (current-buffer))
(defun archive-resummarize ()
"Recreate the contents listing of an archive."
- (let ((modified (buffer-modified-p))
- (no (archive-get-lineno))
- (inhibit-read-only t))
- (widen)
- (delete-region (point-min) archive-proper-file-start)
+ (let ((no (archive-get-lineno)))
+ (archive-desummarize)
(archive-summarize t)
- (restore-buffer-modified-p modified)
(goto-char archive-file-list-start)
(archive-next-line no)))
(setq archive-alternate-display (not archive-alternate-display))
(archive-resummarize))
;; -------------------------------------------------------------------------
-;; Section: Local archive copy handling
+;;; Section: Local archive copy handling
(defun archive-unique-fname (fname dir)
"Make sure a file FNAME can be created uniquely in directory DIR.
(error nil))
(if (string= name top) (setq again nil)))))
;; -------------------------------------------------------------------------
-;; Section: Member extraction
+;;; Section: Member extraction
(defun archive-file-name-handler (op &rest args)
(or (eq op 'file-exists-p)
(funcall func buffer-file-name membuf name))
(error "Adding a new member is not supported for this archive type"))))
;; -------------------------------------------------------------------------
-;; Section: IO stuff
+;;; Section: IO stuff
(defun archive-write-file-member ()
(save-excursion
(set-buffer-modified-p nil))
t))
;; -------------------------------------------------------------------------
-;; Section: Marking and unmarking.
+;;; Section: Marking and unmarking.
(defun archive-flag-deleted (p &optional type)
"In archive mode, mark this member to be deleted from the archive.
(and default
(list (archive-get-descr))))))
;; -------------------------------------------------------------------------
-;; Section: Operate
+;;; Section: Operate
(defun archive-next-line (p)
(interactive "p")
(let ((inhibit-read-only t))
(undo)))
;; -------------------------------------------------------------------------
-;; Section: Arc Archives
+;;; Section: Arc Archives
(defun archive-arc-summarize ()
(let ((p 1)
(delete-char 13)
(insert name)))))
;; -------------------------------------------------------------------------
-;; Section: Lzh Archives
+;;; Section: Lzh Archives
(defun archive-lzh-summarize (&optional start)
(let ((p (or start 1)) ;; 1 for .lzh, something further on for .exe
files "a unix-style mode" 8))
;; -------------------------------------------------------------------------
-;; Section: Lzh Self-Extracting .exe Archives
+;;; Section: Lzh Self-Extracting .exe Archives
;;
;; No support for modifying these files. It looks like the lha for unix
;; program (as of version 1.14i) can't create or retain the DOS exe part.
"Extract a member from an LZH self-extracting exe, for `archive-mode'.")
;; -------------------------------------------------------------------------
-;; Section: Zip Archives
+;;; Section: Zip Archives
(defun archive-zip-summarize ()
(goto-char (- (point-max) (- 22 18)))
(t (message "Don't know how to change mode for this member"))))
))))
;; -------------------------------------------------------------------------
-;; Section: Zoo Archives
+;;; Section: Zoo Archives
(defun archive-zoo-summarize ()
(let ((p (1+ (archive-l-e 25 4)))
(defun archive-zoo-extract (archive name)
(archive-extract-by-stdout archive name archive-zoo-extract))
+
+;; -------------------------------------------------------------------------
+;;; Section: Rar Archives
+
+(defun archive-rar-summarize ()
+ (let* ((file buffer-file-name)
+ (copy (file-local-copy file))
+ header footer
+ (maxname 10)
+ (maxsize 5)
+ (files ()))
+ (with-temp-buffer
+ (call-process "unrar-free" nil t nil "--list" (or file copy))
+ (if copy (delete-file copy))
+ (goto-char (point-min))
+ (re-search-forward "^-+\n")
+ (setq header
+ (buffer-substring (save-excursion (re-search-backward "^[^ ]"))
+ (point)))
+ (while (looking-at (concat " \\(.*\\)\n" ;Name.
+ ;; Size ; Packed.
+ " +\\([0-9]+\\) +[0-9]+"
+ ;; Ratio ; Date'
+ " +\\([0-9%]+\\) +\\([-0-9]+\\)"
+ ;; Time ; Attr.
+ " +\\([0-9:]+\\) +......"
+ ;; CRC; Meth ; Var.
+ " +[0-9A-F]+ +[^ \n]+ +[0-9.]+\n"))
+ (goto-char (match-end 0))
+ (let ((name (match-string 1))
+ (size (match-string 2)))
+ (if (> (length name) maxname) (setq maxname (length name)))
+ (if (> (length size) maxsize) (setq maxsize (length size)))
+ (push (vector name name nil nil
+ ;; Size, Ratio.
+ size (match-string 3)
+ ;; Date, Time.
+ (match-string 4) (match-string 5))
+ files)))
+ (setq footer (buffer-substring (point) (point-max))))
+ (setq files (nreverse files))
+ (goto-char (point-min))
+ (let* ((format (format " %%s %%s %%%ds %%5s %%s" maxsize))
+ (sep (format format "--------" "-----" (make-string maxsize ?-)
+ "-----" ""))
+ (column (length sep)))
+ (insert (format format " Date " "Time " "Size " "Ratio" " Filename") "\n")
+ (insert sep (make-string maxname ?-) "\n")
+ (archive-summarize-files (mapcar (lambda (desc)
+ (let ((text
+ (format format
+ (aref desc 6)
+ (aref desc 7)
+ (aref desc 4)
+ (aref desc 5)
+ (aref desc 1))))
+ (vector text
+ column
+ (length text))))
+ files))
+ (insert sep (make-string maxname ?-) "\n")
+ (apply 'vector files))))
+
+(defun archive-rar-extract (archive name)
+ ;; unrar-free seems to have no way to extract to stdout or even to a file.
+ (if (file-name-absolute-p name)
+ ;; The code below assumes the name is relative and may do undesirable
+ ;; things otherwise.
+ (error "Can't extract files with non-relative names")
+ (let ((dest (make-temp-file "arc-rar" 'dir)))
+ (unwind-protect
+ (progn
+ (call-process "unrar-free" nil nil nil
+ "--extract" archive name dest)
+ (insert-file-contents-literally (expand-file-name name dest)))
+ (delete-file (expand-file-name name dest))
+ (while (file-name-directory name)
+ (setq name (directory-file-name (file-name-directory name)))
+ (delete-directory (expand-file-name name dest)))
+ (delete-directory dest)))))
+
;; -------------------------------------------------------------------------
;; This line was a mistake; it is kept now for compatibility.
;; rms 15 Oct 98
projects / emacs.git / commitdiff