;;; jka-cmpr-hook.el --- preloaded code to enable jka-compr.el
-;; Copyright (C) 1993-1995, 1997, 1999-2000, 2002-2011
-;; Free Software Foundation, Inc.
+;; Copyright (C) 1993-1995, 1997, 1999-2000, 2002-2016 Free Software
+;; Foundation, Inc.
-;; Author: jka@ece.cmu.edu (Jay K. Adams)
-;; Maintainer: FSF
+;; Author: Jay K. Adams <jka@ece.cmu.edu>
+;; Maintainer: emacs-devel@gnu.org
;; Keywords: data
;; Package: emacs
"jka-compr customization."
:group 'compression)
+(defcustom jka-compr-verbose t
+ "If non-nil, output messages whenever compressing or uncompressing files."
+ :version "24.1"
+ :type 'boolean
+ :group 'jka-compr)
+
;; List of all the elements we actually added to file-coding-system-alist.
(defvar jka-compr-added-to-file-coding-system-alist nil)
"Return information about the compression scheme of FILENAME.
The determination as to which compression scheme, if any, to use is
based on the filename itself and `jka-compr-compression-info-list'."
+ (setq filename (file-name-sans-versions filename))
(catch 'compression-info
(let ((case-fold-search nil))
(dolist (x jka-compr-compression-info-list)
(defun jka-compr-install ()
"Install jka-compr.
This adds entries to `file-name-handler-alist' and `auto-mode-alist'
-and `inhibit-first-line-modes-suffixes'."
+and `inhibit-local-variables-suffixes'."
(setq jka-compr-file-name-handler-entry
(cons (jka-compr-build-file-regexp) 'jka-compr-handler))
;; are chosen right according to the file names
;; sans `.gz'.
(push (list (jka-compr-info-regexp x) nil 'jka-compr) auto-mode-alist)
- ;; Also add these regexps to
- ;; inhibit-first-line-modes-suffixes, so that a
- ;; -*- line in the first file of a compressed tar
- ;; file doesn't override tar-mode.
+ ;; Also add these regexps to inhibit-local-variables-suffixes,
+ ;; so that a -*- line in the first file of a compressed tar file,
+ ;; or a Local Variables section in a member file at the end of
+ ;; the tar file don't override tar-mode.
(push (jka-compr-info-regexp x)
- inhibit-first-line-modes-suffixes)))
+ inhibit-local-variables-suffixes)))
(setq auto-mode-alist
(append auto-mode-alist jka-compr-mode-alist-additions))
;; I have this defined so that .Z files are assumed to be in unix
;; compress format; and .gz files, in gzip format, and .bz2 files in bzip fmt.
-
-;; FIXME? It seems ugly that one has to add "\\(~\\|\\.~[0-9]+~\\)?" to
-;; all the regexps here, in order to match backup files etc.
-;; It's trivial to modify jka-compr-get-compression-info to match
-;; regexps against file-name-sans-versions, but this regexp is also
-;; used to build a file-name-handler-alist entry.
-;; find-file-name-handler does not use file-name-sans-versions.
-;; Perhaps it should,
-;; http://lists.gnu.org/archive/html/emacs-devel/2008-02/msg00812.html,
-;; but it's used all over the place and there are probably other ramifications.
-;; One could modify jka-compr-build-file-regexp to add the backup regexp,
-;; but jka-compr-compression-info-list is a defcustom to which
-;; anything could be added, so it's easiest to leave things as they are.
(defcustom jka-compr-compression-info-list
;;[regexp
;; compr-message compr-prog compr-args
"compressing" "gzip" ("-c" "-q")
"uncompressing" "gzip" ("-c" "-q" "-d")
t t "\037\213"]
+ ["\\.lz\\'"
+ "Lzip compressing" "lzip" ("-c" "-q")
+ "Lzip uncompressing" "lzip" ("-c" "-q" "-d")
+ t t "LZIP"]
+ ["\\.lzma\\'"
+ "LZMA compressing" "lzma" ("-c" "-q" "-z")
+ "LZMA uncompressing" "lzma" ("-c" "-q" "-d")
+ t t ""]
["\\.xz\\'"
"XZ compressing" "xz" ("-c" "-q")
"XZ uncompressing" "xz" ("-c" "-q" "-d")
t t "\3757zXZ\0"]
+ ["\\.txz\\'"
+ "XZ compressing" "xz" ("-c" "-q")
+ "XZ uncompressing" "xz" ("-c" "-q" "-d")
+ t nil "\3757zXZ\0"]
;; dzip is gzip with random access. Its compression program can't
;; read/write stdin/out, so .dz files can only be viewed without
;; saving, having their contents decompressed with gzip.
(boolean :tag "Strip Extension")
(string :tag "Magic Bytes")))
:set 'jka-compr-set
+ :version "24.1" ; removed version extension piece
:group 'jka-compr)
(defcustom jka-compr-mode-alist-additions
- (list (cons (purecopy "\\.tgz\\'") 'tar-mode) (cons (purecopy "\\.tbz2?\\'") 'tar-mode))
+ (purecopy '(("\\.tgz\\'" . tar-mode)
+ ("\\.tbz2?\\'" . tar-mode)
+ ("\\.txz\\'" . tar-mode)))
"List of pairs added to `auto-mode-alist' when installing jka-compr.
Uninstalling jka-compr removes all pairs from `auto-mode-alist' that
installing added.
`jka-compr-update' after setting it to properly update other
variables. Setting this through Custom does that automatically."
:type '(repeat (cons string symbol))
+ :version "24.4" ; add txz
:set 'jka-compr-set
:group 'jka-compr)
-(defcustom jka-compr-load-suffixes (list (purecopy ".gz"))
+(defcustom jka-compr-load-suffixes (purecopy '(".gz"))
"List of compression related suffixes to try when loading files.
Enabling Auto Compression mode appends this list to `load-file-rep-suffixes',
which see. Disabling Auto Compression mode removes all suffixes
:group 'jka-compr)
(define-minor-mode auto-compression-mode
- "Toggle automatic file compression and uncompression.
-With prefix argument ARG, turn auto compression on if positive, else off.
-Return the new status of auto compression (non-nil means on)."
+ "Toggle Auto Compression mode.
+With a prefix argument ARG, enable Auto Compression mode if ARG
+is positive, and disable it otherwise. If called from Lisp,
+enable the mode if ARG is omitted or nil.
+
+Auto Compression mode is a global minor mode. When enabled,
+compressed files are automatically uncompressed for reading, and
+compressed when writing."
:global t :init-value t :group 'jka-compr :version "22.1"
(let* ((installed (jka-compr-installed-p))
(flag auto-compression-mode))