;;; arc-mode.el --- simple editing of archives
-;; Copyright (C) 1995, 1997, 1998, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007 Free Software Foundation, Inc.
+;; Copyright (C) 1995, 1997, 1998, 2001, 2002, 2003, 2004, 2005, 2006,
+;; 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
;; Author: Morten Welinder <terra@gnu.org>
-;; Keywords: archives msdog editing major-mode
+;; Keywords: files archives msdog editing major-mode
;; Favourite-brand-of-beer: None, I hate beer.
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 3, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
:group 'archive)
(defcustom archive-remote-regexp "^/[^/:]*[^/:.]:"
- "*Regexp recognizing archive files names that are not local.
+ "Regexp recognizing archive files names that are not local.
A non-local file is one whose file name is not proper outside Emacs.
A local copy of the archive will be used when updating."
:type 'regexp
:group 'archive)
(defcustom archive-extract-hooks nil
- "*Hooks to run when an archive member has been extracted."
+ "Hooks to run when an archive member has been extracted."
:type 'hook
:group 'archive)
;; ------------------------------
;; to extract to stdout without junk getting added.
(defcustom archive-arc-extract
'("arc" "x")
- "*Program and its options to run in order to extract an arc file member.
+ "Program and its options to run in order to extract an arc file member.
Extraction should happen to the current directory. Archive and member
name will be added."
:type '(list (string :tag "Program")
(defcustom archive-arc-expunge
'("arc" "d")
- "*Program and its options to run in order to delete arc file members.
+ "Program and its options to run in order to delete arc file members.
Archive and member names will be added."
:type '(list (string :tag "Program")
(repeat :tag "Options"
(defcustom archive-arc-write-file-member
'("arc" "u")
- "*Program and its options to run in order to update an arc file member.
+ "Program and its options to run in order to update an arc file member.
Archive and member name will be added."
:type '(list (string :tag "Program")
(repeat :tag "Options"
(defcustom archive-lzh-extract
'("lha" "pq")
- "*Program and its options to run in order to extract an lzh file member.
+ "Program and its options to run in order to extract an lzh file member.
Extraction should happen to standard output. Archive and member name will
be added."
:type '(list (string :tag "Program")
(defcustom archive-lzh-expunge
'("lha" "d")
- "*Program and its options to run in order to delete lzh file members.
+ "Program and its options to run in order to delete lzh file members.
Archive and member names will be added."
:type '(list (string :tag "Program")
(repeat :tag "Options"
(defcustom archive-lzh-write-file-member
'("lha" "a")
- "*Program and its options to run in order to update an lzh file member.
+ "Program and its options to run in order to update an lzh file member.
Archive and member name will be added."
:type '(list (string :tag "Program")
(repeat :tag "Options"
(executable-find "pkunzip"))
'("pkunzip" "-e" "-o-")
'("unzip" "-qq" "-c"))
- "*Program and its options to run in order to extract a zip file member.
+ "Program and its options to run in order to extract a zip file member.
Extraction should happen to standard output. Archive and member name will
be added."
:type '(list (string :tag "Program")
(string :format "%v")))
:group 'archive-zip)
-;; For several reasons the latter behaviour is not desirable in general.
+;; For several reasons the latter behavior is not desirable in general.
;; (1) It uses more disk space. (2) Error checking is worse or non-
;; existent. (3) It tends to do funny things with other systems' file
;; names.
(executable-find "pkzip"))
'("pkzip" "-d")
'("zip" "-d" "-q"))
- "*Program and its options to run in order to delete zip file members.
+ "Program and its options to run in order to delete zip file members.
Archive and member names will be added."
:type '(list (string :tag "Program")
(repeat :tag "Options"
(executable-find "pkzip"))
'("pkzip" "-u" "-P")
'("zip" "-q"))
- "*Program and its options to run in order to update a zip file member.
+ "Program and its options to run in order to update a zip file member.
Options should ensure that specified directory will be put into the zip
file. Archive and member name will be added."
:type '(list (string :tag "Program")
(executable-find "pkzip"))
'("pkzip" "-u" "-P")
'("zip" "-q" "-k"))
- "*Program and its options to run in order to update a case fiddled zip member.
+ "Program and its options to run in order to update a case fiddled zip member.
Options should ensure that specified directory will be put into the zip file.
Archive and member name will be added."
:type '(list (string :tag "Program")
:group 'archive-zip)
(defcustom archive-zip-case-fiddle t
- "*If non-nil then zip file members may be down-cased.
+ "If non-nil then zip file members may be down-cased.
This case fiddling will only happen for members created by a system
that uses caseless file names."
:type 'boolean
(defcustom archive-zoo-extract
'("zoo" "xpq")
- "*Program and its options to run in order to extract a zoo file member.
+ "Program and its options to run in order to extract a zoo file member.
Extraction should happen to standard output. Archive and member name will
be added."
:type '(list (string :tag "Program")
(defcustom archive-zoo-expunge
'("zoo" "DqPP")
- "*Program and its options to run in order to delete zoo file members.
+ "Program and its options to run in order to delete zoo file members.
Archive and member names will be added."
:type '(list (string :tag "Program")
(repeat :tag "Options"
(defcustom archive-zoo-write-file-member
'("zoo" "a")
- "*Program and its options to run in order to update a zoo file member.
+ "Program and its options to run in order to update a zoo file member.
Archive and member name will be added."
:type '(list (string :tag "Program")
(repeat :tag "Options"
(define-key map "M" 'archive-chmod-entry)
(define-key map "G" 'archive-chgrp-entry)
(define-key map "O" 'archive-chown-entry)
+ ;; Let mouse-1 follow the link.
+ (define-key map [follow-link] 'mouse-face)
(if (fboundp 'command-remapping)
(progn
;; mode on and off. You can corrupt things that way.
(if (zerop (buffer-size))
;; At present we cannot create archives from scratch
- (funcall default-major-mode)
+ (funcall (or (default-value 'major-mode) 'fundamental-mode))
(if (and (not force) archive-files) nil
(let* ((type (archive-find-type))
(typename (capitalize (symbol-name type))))
(or file-name-coding-system
default-file-name-coding-system
locale-coding-system))
- (if default-enable-multibyte-characters
+ (if (default-value 'enable-multibyte-characters)
(set-buffer-multibyte 'to))
(archive-summarize nil)
(setq buffer-read-only t))))
;; The funny [] here make it unlikely that the .elc file will be treated
;; as an archive by other software.
(let (case-fold-search)
- (cond ((looking-at "[P]K\003\004") 'zip)
+ (cond ((looking-at "\\(PK00\\)?[P]K\003\004") 'zip)
((looking-at "..-l[hz][0-9ds]-") 'lzh)
((looking-at "....................[\334]\247\304\375") 'zoo)
((and (looking-at "\C-z") ; signature too simple, IMHO
(string-match "\\.[aA][rR][cC]$"
(or buffer-file-name (buffer-name))))
'arc)
- ;; This pattern modelled on the BSD/GNU+Linux `file' command.
+ ;; This pattern modeled on the BSD/GNU+Linux `file' command.
;; 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)
+ ((looking-at "!<arch>\n") 'ar)
+ ((and (looking-at "MZ")
+ (re-search-forward "Rar!" (+ (point) 100000) t))
+ 'rar-exe)
(t (error "Buffer format not recognized")))))
;; -------------------------------------------------------------------------
file by that name already exists in DIR, a unique new name is generated
using `make-temp-file', and the generated name is returned."
(let ((fullname (expand-file-name fname dir))
- (alien (string-match file-name-invalid-regexp fname)))
- (if (or alien (file-exists-p fullname))
- (make-temp-file
+ (alien (string-match file-name-invalid-regexp fname))
+ (tmpfile
(expand-file-name
(if (if (fboundp 'msdos-long-file-names)
(not (msdos-long-file-names)))
"am"
"arc-mode.")
- dir))
+ dir)))
+ (if (or alien (file-exists-p fullname))
+ (progn
+ ;; Maked sure all the leading directories in
+ ;; archive-local-name exist under archive-tmpdir, so that
+ ;; the directory structure recorded in the archive is
+ ;; reconstructed in the temporary directory.
+ (make-directory (file-name-directory tmpfile) t)
+ (make-temp-file tmpfile))
+ ;; Maked sure all the leading directories in `fullname' exist
+ ;; under archive-tmpdir. This is necessary for nested archives
+ ;; (`archive-extract' sets `archive-remote' to t in case
+ ;; an archive occurs inside another archive).
+ (make-directory (file-name-directory fullname) t)
fullname)))
(defun archive-maybe-copy (archive)
archive)))
(setq archive-local-name
(archive-unique-fname archive-name archive-tmpdir))
- ;; Maked sure all the leading directories in
- ;; archive-local-name exist under archive-tmpdir, so that
- ;; the directory structure recorded in the archive is
- ;; reconstructed in the temporary directory.
- (make-directory (file-name-directory archive-local-name) t)
(save-restriction
(widen)
(write-region start (point-max) archive-local-name nil 'nomessage))
;; -------------------------------------------------------------------------
;;; Section: Member extraction
+(defun archive-try-jka-compr ()
+ (when (and auto-compression-mode
+ (jka-compr-get-compression-info buffer-file-name))
+ (let* ((basename (file-name-nondirectory buffer-file-name))
+ (tmpname (if (string-match ":\\([^:]+\\)\\'" basename)
+ (match-string 1 basename) basename))
+ (tmpfile (make-temp-file (file-name-sans-extension tmpname)
+ nil
+ (file-name-extension tmpname 'period))))
+ (unwind-protect
+ (progn
+ (let ((coding-system-for-write 'no-conversion)
+ ;; Don't re-compress this data just before decompressing it.
+ (jka-compr-inhibit t))
+ (write-region (point-min) (point-max) tmpfile nil 'quiet))
+ (erase-buffer)
+ (let ((coding-system-for-read 'no-conversion))
+ (insert-file-contents tmpfile)))
+ (delete-file tmpfile)))))
+
(defun archive-file-name-handler (op &rest args)
(or (eq op 'file-exists-p)
(let ((file-name-handler-alist nil))
(car (find-operation-coding-system
'insert-file-contents
(cons filename (current-buffer)) t))))))
- (if (and (not coding-system-for-read)
- (not enable-multibyte-characters))
- (setq coding
- (coding-system-change-text-conversion coding 'raw-text)))
- (if (and coding
- (not (eq coding 'no-conversion)))
- (decode-coding-region (point-min) (point-max) coding)
+ (unless (or coding-system-for-read
+ enable-multibyte-characters)
+ (setq coding
+ (coding-system-change-text-conversion coding 'raw-text)))
+ (unless (memq coding '(nil no-conversion))
+ (decode-coding-region (point-min) (point-max) coding)
(setq last-coding-system-used coding))
(set-buffer-modified-p nil)
(kill-local-variable 'buffer-file-coding-system)
(progn
(set-buffer-modified-p nil)
(kill-buffer buffer))
+ (archive-try-jka-compr) ;Pretty ugly hack :-(
(archive-set-buffer-as-visiting-file ename)
(goto-char (point-min))
(rename-buffer bufname)
(archive-maybe-update t))
(or (not (buffer-name buffer))
(cond
- (view-p (view-buffer buffer (and just-created 'kill-buffer)))
+ (view-p (view-buffer
+ buffer (and just-created 'kill-buffer-if-not-modified)))
((eq other-window-p 'display) (display-buffer buffer))
(other-window-p (switch-to-buffer-other-window buffer))
(t (switch-to-buffer buffer))))))
nil
nil
(append (cdr command) (list archive name))))
- (cond ((and (numberp exit-status) (= exit-status 0))
+ (cond ((and (numberp exit-status) (zerop exit-status))
(if (not (file-exists-p tmpfile))
(ding (message "`%s': no such file or directory" tmpfile))
(insert-file-contents tmpfile)
(file-name-nondirectory buffer-file-name)
""))))
(with-current-buffer arcbuf
- (or (eq major-mode 'archive-mode)
+ (or (derived-mode-p 'archive-mode)
(error "Buffer is not an archive buffer"))
(if archive-read-only
(error "Archive is read-only")))
;; the dired-like listing we created.
(if (eq major-mode 'archive-mode)
(archive-write-file tmpfile)
- (write-region (point-min) (point-max) tmpfile nil 'nomessage))
+ (write-region nil nil tmpfile nil 'nomessage))
;; basic-save-buffer needs last-coding-system-used to have
;; the value used to write the file, so save it before any
;; further processing clobbers it (we restore it in
nil
(append (cdr command)
(list archive ename)))))
- (if (equal exitcode 0)
- nil
- (error "Updating was unsuccessful (%S)" exitcode))))
+ (or (zerop exitcode)
+ (error "Updating was unsuccessful (%S)" exitcode))))
(archive-delete-local tmpfile))))
(defun archive-write-file (&optional file)
str archive-file-name-coding-system)))
(isdir (and (= ucsize 0)
(string= (file-name-nondirectory efnname) "")))
- (mode (cond ((memq creator '(2 3)) ; Unix + VMS
+ (mode (cond ((memq creator '(2 3)) ; Unix
(archive-l-e (+ p 40) 2))
((memq creator '(0 5 6 7 10 11 15)) ; Dos etc.
(logior ?\444
(apply 'vector (nreverse files))))
(defun archive-zip-extract (archive name)
- (if (equal (car archive-zip-extract) "pkzip")
+ (if (member-ignore-case (car archive-zip-extract) '("pkunzip" "pkzip"))
(archive-*-extract archive name archive-zip-extract)
- (archive-extract-by-stdout archive name archive-zip-extract)))
+ (archive-extract-by-stdout
+ archive
+ ;; unzip expands wildcards in NAME, so we need to quote it. But
+ ;; not on DOS/Windows, since that fails extraction on those
+ ;; systems, and file names with wildcards in zip archives don't
+ ;; work there anyway.
+ ;; FIXME: Does pkunzip need similar treatment?
+ (if (and (not (memq system-type '(windows-nt ms-dos)))
+ (equal (car archive-zip-extract) "unzip"))
+ (shell-quote-argument name)
+ name)
+ archive-zip-extract)))
(defun archive-zip-write-file-member (archive descr)
(archive-*-write-file-member
(oldmode (aref fil 3))
(newval (archive-calc-mode oldmode newmode t))
(inhibit-read-only t))
- (cond ((memq creator '(2 3)) ; Unix + VMS
+ (cond ((memq creator '(2 3)) ; Unix
(goto-char (+ p 40))
(delete-char 2)
(insert-unibyte (logand newval 255) (lsh newval -8)))
;; -------------------------------------------------------------------------
;;; Section: Rar Archives
-(defun archive-rar-summarize ()
- (let* ((file buffer-file-name)
- (copy (file-local-copy file))
- header footer
+(defun archive-rar-summarize (&optional file)
+ ;; File is used internally for `archive-rar-exe-summarize'.
+ (unless file (setq file buffer-file-name))
+ (let* ((copy (file-local-copy file))
(maxname 10)
(maxsize 5)
(files ()))
(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:]+\\) +......"
+ " +\\([0-9:]+\\) +[^ \n]\\{6,10\\}"
;; CRC; Meth ; Var.
" +[0-9A-F]+ +[^ \n]+ +[0-9.]+\n"))
(goto-char (match-end 0))
size (match-string 3)
;; Date, Time.
(match-string 4) (match-string 5))
- files)))
- (setq footer (buffer-substring (point) (point-max))))
+ files))))
(setq files (nreverse files))
(goto-char (point-min))
(let* ((format (format " %%s %%s %%%ds %%5s %%s" maxsize))
(delete-directory (expand-file-name name dest)))
(delete-directory dest)))))
+;;; Section: Rar self-extracting .exe archives.
+
+(defun archive-rar-exe-summarize ()
+ (let ((tmpfile (make-temp-file "rarexe")))
+ (unwind-protect
+ (progn
+ (goto-char (point-min))
+ (re-search-forward "Rar!")
+ (write-region (match-beginning 0) (point-max) tmpfile)
+ (archive-rar-summarize tmpfile))
+ (delete-file tmpfile))))
+
+(defun archive-rar-exe-extract (archive name)
+ (let* ((tmpfile (make-temp-file "rarexe"))
+ (buf (find-buffer-visiting archive))
+ (tmpbuf (unless buf (generate-new-buffer " *rar-exe*"))))
+ (unwind-protect
+ (progn
+ (with-current-buffer (or buf tmpbuf)
+ (save-excursion
+ (save-restriction
+ (if buf
+ ;; point-max unwidened is assumed to be the end of the
+ ;; summary text and the beginning of the actual file data.
+ (progn (goto-char (point-max)) (widen))
+ (insert-file-contents-literally archive)
+ (goto-char (point-min)))
+ (re-search-forward "Rar!")
+ (write-region (match-beginning 0) (point-max) tmpfile))))
+ (archive-rar-extract tmpfile name))
+ (if tmpbuf (kill-buffer tmpbuf))
+ (delete-file tmpfile))))
+
+
+;;; Section `ar' archives.
+
+;; TODO: we currently only handle the basic format of ar archives,
+;; not the GNU nor the BSD extensions. As it turns out, this is sufficient
+;; for .deb packages.
+
+(autoload 'tar-grind-file-mode "tar-mode")
+
+(defconst archive-ar-file-header-re
+ "\\(.\\{16\\}\\)\\([ 0-9]\\{12\\}\\)\\([ 0-9]\\{6\\}\\)\\([ 0-9]\\{6\\}\\)\\([ 0-7]\\{8\\}\\)\\([ 0-9]\\{10\\}\\)`\n")
+
+(defun archive-ar-summarize ()
+ ;; File is used internally for `archive-rar-exe-summarize'.
+ (let* ((maxname 10)
+ (maxtime 16)
+ (maxuser 5)
+ (maxgroup 5)
+ (maxmode 8)
+ (maxsize 5)
+ (files ()))
+ (goto-char (point-min))
+ (search-forward "!<arch>\n")
+ (while (looking-at archive-ar-file-header-re)
+ (let ((name (match-string 1))
+ extname
+ ;; Emacs will automatically use float here because those
+ ;; timestamps don't fit in our ints.
+ (time (string-to-number (match-string 2)))
+ (user (match-string 3))
+ (group (match-string 4))
+ (mode (string-to-number (match-string 5) 8))
+ (size (string-to-number (match-string 6))))
+ ;; Move to the beginning of the data.
+ (goto-char (match-end 0))
+ (setq time
+ (format-time-string
+ "%Y-%m-%d %H:%M"
+ (let ((high (truncate (/ time 65536))))
+ (list high (truncate (- time (* 65536.0 high)))))))
+ (setq extname
+ (cond ((equal name "// ")
+ (propertize ".<ExtNamesTable>." 'face 'italic))
+ ((equal name "/ ")
+ (propertize ".<LookupTable>." 'face 'italic))
+ ((string-match "/? *\\'" name)
+ (substring name 0 (match-beginning 0)))))
+ (setq user (substring user 0 (string-match " +\\'" user)))
+ (setq group (substring group 0 (string-match " +\\'" group)))
+ (setq mode (tar-grind-file-mode mode))
+ ;; Move to the end of the data.
+ (forward-char size) (if (eq ?\n (char-after)) (forward-char 1))
+ (setq size (number-to-string size))
+ (if (> (length name) maxname) (setq maxname (length name)))
+ (if (> (length time) maxtime) (setq maxtime (length time)))
+ (if (> (length user) maxuser) (setq maxuser (length user)))
+ (if (> (length group) maxgroup) (setq maxgroup (length group)))
+ (if (> (length mode) maxmode) (setq maxmode (length mode)))
+ (if (> (length size) maxsize) (setq maxsize (length size)))
+ (push (vector name extname nil mode
+ time user group size)
+ files)))
+ (setq files (nreverse files))
+ (goto-char (point-min))
+ (let* ((format (format "%%%ds %%%ds/%%-%ds %%%ds %%%ds %%s"
+ maxmode maxuser maxgroup maxsize maxtime))
+ (sep (format format (make-string maxmode ?-)
+ (make-string maxuser ?-)
+ (make-string maxgroup ?-)
+ (make-string maxsize ?-)
+ (make-string maxtime ?-) ""))
+ (column (length sep)))
+ (insert (format format " Mode " "User" "Group" " Size "
+ " Date " "Filename")
+ "\n")
+ (insert sep (make-string maxname ?-) "\n")
+ (archive-summarize-files (mapcar (lambda (desc)
+ (let ((text
+ (format format
+ (aref desc 3)
+ (aref desc 5)
+ (aref desc 6)
+ (aref desc 7)
+ (aref desc 4)
+ (aref desc 1))))
+ (vector text
+ column
+ (length text))))
+ files))
+ (insert sep (make-string maxname ?-) "\n")
+ (apply 'vector files))))
+
+(defun archive-ar-extract (archive name)
+ (let ((destbuf (current-buffer))
+ (archivebuf (find-file-noselect archive))
+ (from nil) size)
+ (with-current-buffer archivebuf
+ (save-restriction
+ ;; We may be in archive-mode or not, so either with or without
+ ;; narrowing and with or without a prepended summary.
+ (save-excursion
+ (widen)
+ (search-forward "!<arch>\n")
+ (while (and (not from) (looking-at archive-ar-file-header-re))
+ (let ((this (match-string 1)))
+ (setq size (string-to-number (match-string 6)))
+ (goto-char (match-end 0))
+ (if (equal name this)
+ (setq from (point))
+ ;; Move to the end of the data.
+ (forward-char size) (if (eq ?\n (char-after)) (forward-char 1)))))
+ (when from
+ (set-buffer-multibyte nil)
+ (with-current-buffer destbuf
+ ;; Do it within the `widen'.
+ (insert-buffer-substring archivebuf from (+ from size)))
+ (set-buffer-multibyte 'to)
+ ;; Inform the caller that the call succeeded.
+ t))))))
+
;; -------------------------------------------------------------------------
;; This line was a mistake; it is kept now for compatibility.
;; rms 15 Oct 98
HCoop / bpt / emacs.git / blobdiff